US20250354347A1

US20250354347A1 - Dragline bucket and work machines, systems, and assemblies thereof

Info

Publication number: US20250354347A1
Application number: US18/665,631
Authority: US
Inventors: Thiyagarajan Gnanavel PANDYAN; Saravanan Varadharaj Anthipagulu; Koushik Kabiraj; Surya Sundar Rao KORIMILLI; Michael R. Stolz
Original assignee: Caterpillar Global Mining LLC
Current assignee: Caterpillar Global Mining LLC
Priority date: 2024-05-16
Filing date: 2024-05-16
Publication date: 2025-11-20
Also published as: AU2025203128A1

Abstract

A dragline bucket can comprise a bottom wall; a first sidewall defining a first upper edge; a second sidewall opposite the first sidewall defining a second upper edge; a first forward-facing projection on a first side of the dragline bucket; a second forward-facing projection on a second side of the dragline bucket opposite the first side; a lip assembly at a front of the bottom wall; and an arm extending from the first side to the second side of the dragline bucket, a distal end of the arm being at a height greater than a height of respective first and second upper edges of the first and second sidewalls. In a side elevational view of the dragline bucket, the arm is tilted away from the rear wall at an angle relative to vertical.

Description

TECHNICAL FIELD

The present disclosure relates to a dragline bucket, and work machines, systems, and assemblies thereof.

BACKGROUND

Machines, such as dragline excavators, typically include a dragline bucket associated therewith. The dragline bucket may be used in mining and earth moving operations. For example, the dragline bucket may be used to capture materials such as rocks/aggregate, or other large finds. The dragline bucket is suspended from a boom of the machine by a rigging assembly, and the dragline bucket is maneuvered by control of the rigging assembly.
Conventionally, a dragline bucket may have lower performance and/or productivity due to excessive body weight. Additionally or alternatively, loading and/or unloading performance may be low due to non-optimized shaping for a given capacity/volume.
U.S. Pat. No. 8,572,870 (“the '870 patent”) describes a dragline bucket, rigging, and system where the dragline bucket can have walls that collectively define a cavity, where the sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment the sidewalls each have an upward taper in its rearward area, which, according to the '870 patent, alleviate the need for a spreader bar. The '870 patent also describes that the dragline bucket collects earthen material with minimal disruption of the material.

SUMMARY

According to an aspect of the present disclosure, a dragline machine can be provided or implemented. The dragline machine can comprise: a bottom wall; a first sidewall extending from the bottom wall and defining a first upper edge; a second sidewall opposite the first sidewall, extending from the bottom wall, and defining a second upper edge; a first forward-facing drag lug on a first side of the dragline bucket; a second forward-facing drag lung on a second side of the dragline bucket opposite the first side; a lip assembly at a front of the bottom wall; and an arm extending from the first side of the dragline bucket to the second side of the dragline bucket, a distal end of the arm being at a height greater than a height of respective first and second upper edges of the first and second sidewalls, wherein each of the first and second forward-facing drag lugs has an attachment point, wherein a portion of the arm overlaps a portion of the lip assembly in a vertical direction, wherein a forward-most edge of the arm does not overlap the attachment points of the first and second forward-facing drag lugs in the vertical direction, and wherein the dragline bucket satisfies the following equations: W/L=0.91 to 1.30; FH/L=0.47 to 0.63; BH/L=0.52 to 0.70; and BH/FH=1.06 to 1.18, where FH is a vertical distance from a first horizontal plane extending through the bottom wall to a second horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm, W is a width of a mouth of the dragline bucket, BH is a dimension in the vertical direction from the first horizontal plane to a third horizontal plane extending through or at an uppermost portion of a body of the dragline bucket, and L is a length from a first vertical plane extending through a lower capacity point of the dragline bucket to a second vertical plane extending through a rear-most portion of the body of the dragline bucket.
According to another aspect of the present disclosure, a dragline bucket can be provided or implemented. The dragline bucket can comprise: a bottom wall; a first sidewall extending from the bottom wall and defining a first upper edge; a second sidewall opposite the first sidewall, extending from the bottom wall, and defining a second upper edge; a first forward-facing drag lug on a first side of the dragline bucket; a second forward-facing drag lung on a second side of the dragline bucket opposite the first side; a lip assembly at a front of the bottom wall; and an arm extending from the first side of the dragline bucket to the second side of the dragline bucket, a distal end of the arm being at a height greater than a height of respective first and second upper edges of the first and second sidewalls, wherein each of the first and second forward-facing drag lugs has an attachment point, wherein a portion of the arm overlaps a portion of the lip assembly in a vertical direction, wherein the forward-most edge of the arm does not overlap the attachment points of the first and second forward-facing drag lugs in the vertical direction, and wherein the dragline bucket satisfies the following equations: W/L=0.91 to 1.30; FH/L=0.47 to 0.63; BH/L=0.52 to 0.70; and BH/FH=1.06 to 1.18, where FH is a vertical distance from a first horizontal plane extending through the bottom wall to a second horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm, W is a width of a mouth of the dragline bucket, BH is a dimension in the vertical direction from the first horizontal plane to a third horizontal plane extending through or at an uppermost portion of a body of the dragline bucket, and L is a length from a first vertical plane extending through a lower capacity point of the dragline bucket to a second vertical plane extending through a rear-most portion of the body of the dragline bucket.
According to yet another aspect of the present disclosure, a method can be implemented. The method can comprise: providing a dragline bucket, the dragline bucket including: a bottom wall; a first sidewall extending from the bottom wall and defining a first upper edge; a second sidewall opposite the first sidewall, extending from the bottom wall, and defining a second upper edge; a first forward-facing drag lug on a first side of the dragline bucket; a second forward-facing drag lung on a second side of the dragline bucket opposite the first side; a lip assembly at a front of the bottom wall; and an arm extending from the first side of the dragline bucket to the second side of the dragline bucket, a distal end of the arm being at a height greater than a height of respective first and second upper edges of the first and second sidewalls, wherein a portion of the arm overlaps a portion of the lip assembly in a vertical direction, and wherein the dragline bucket satisfies the following equations: W/L=0.91 to 1.30; FH/L=0.47 to 0.63; BH/L=0.52 to 0.70; and BH/FH=1.06 to 1.18, where FH is a vertical distance from a first horizontal plane extending through the bottom wall to a second horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm, W is a width of a mouth of the dragline bucket, BH is a dimension in the vertical direction from the first horizontal plane to a third horizontal plane extending through or at an uppermost portion of a body of the dragline bucket, and L is a length from a first vertical plane extending through a lower capacity point of the dragline bucket to a second vertical plane extending through a rear-most portion of the body of the dragline bucket

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 illustrates a side view of a machine, in accordance with one or more embodiments of the present disclosure.

FIG. 2 is an end, overhead perspective view of a dragline bucket according to one or more embodiments of the present disclosure.

FIG. 3 is a side elevational view of the dragline bucket of FIG. 2 .

FIG. 4 is an end elevational view of the dragline bucket of FIG. 2 .

FIG. 5 is a top or overhead plan view of the dragline bucket of FIG. 2 .

FIG. 6 is a bottom plan view of the dragline bucket of FIG. 2 .

FIG. 7 is an end, below perspective view of the dragline bucket of FIG. 2 .

FIG. 8 is an end, overhead perspective view of another dragline bucket according to one or more embodiments of the present disclosure.

FIG. 9 is a side elevational view of the dragline bucket of FIG. 8 .

FIG. 10 is an end elevational view of the dragline bucket of FIG. 8 .

FIG. 11 is a top or overhead plan view of the dragline bucket of FIG. 8 .

FIG. 12 is a bottom plan view of the dragline bucket of FIG. 8 .

FIG. 13 is an end, below perspective view of the dragline bucket of FIG. 8 .

FIG. 14 is an end cross-sectional profile diagrammatic view of the dragline bucket of the dragline bucket of FIG. 2 and/or the dragline bucket of FIG. 8 .

DETAILED DESCRIPTION

As noted above, the present disclosure relates to a dragline bucket, and work machines, systems, and assemblies thereof. The dragline bucket according to one or more embodiments of the present disclosure may be regarded or referred to as a quick-fill dragline bucket or a prime fill dragline bucket.
FIG. 1 illustrates an exemplary machine 100. The machine 100 is embodied as a dragline excavator herein. Alternatively, the machine 100 may include another type of earthmoving machine that employs a dragline bucket 102 that will be explained later in this section. The machine 100 may perform one or more operations associated with an industry such as mining, construction, forestry, farming, transportation, or any other industry known in the art. The machine 100 may be embodied as a manual, autonomous, or semi-autonomous machine, without any limitations. Thus, machines according to one or more embodiments of the present disclosure, including the machine 100, may be regarded as work or working machines.
The machine 100 can include a house 104, which may be regarded as a cabin or more generally an operator area. The machine 100 can further include a power source supported by the house 104 or other component, such as a chassis or frame. The power source may supply power to various components of the machine 100 for operation, movement, and the like. In one example, the power source may include an engine, such as a diesel engine, a gasoline engine, a gaseous fuel-powered engine, or any other type of combustion engine. In other examples, the power source may additionally or alternatively include an electric drive assembly having one or more electric motors.
The machine 100 can include a boom 106. The boom 106 can be controlled by a suspension system 108 connected to a mast 110 and a gantry frame 112. The machine 100 can further include a rigging assembly 114 coupled to one or more hoist ropes 116. The machine 100 can also include the dragline bucket 102 coupled to the rigging assembly 114. Optionally, the dragline bucket 102 may be regarded as separate from the machine 100, though operably coupleable to the machine 100, particularly operably coupleable to the rigging assembly 114 thereof, such as shown in FIG. 1 . The rigging assembly 114 can include a drag socket 118 and one or more drag ropes 120. The hoist rope(s) 116 can pass over a boom point sheave 122 of the boom 106 and suspend the dragline bucket 102 therefrom. The dragline bucket 102 can be coupled to the drag rope(s) 120 by the drag socket 118. An amount of material that can be carried by the dragline bucket 102 is typically governed by a volume of the dragline bucket 102. Further, the volume of the dragline bucket 104 may vary based on a shape and/or size of the dragline bucket 102, according to one or more embodiments of the present disclosure (e.g., according to the cubic volume). Exemplary dragline bucket volumes include from 3 m³to 125 m³.
Turning to FIGS. 2-7 , these figures show the dragline bucket 102 according to one or more embodiments of the present disclosure. The dragline bucket 102 of FIGS. 2-7 may be regarded as a quick-fill dragline bucket. Embodiments of the present disclosure, however, are not limited to the specific dragline bucket 102 shown in FIGS. 2-7 . The dragline bucket 102 itself may be regarded as a dragline bucket assembly. And the dragline bucket 102, in addition to being regarded as a quick-fill dragline bucket, may be regarded as a clipped bucket (i.e., a clipped dragline bucket).
The dragline bucket 102, according to one or more embodiments of the present disclosure, can include a body having a base 204, which may be regarded as a floor or bottom wall, a first sidewall 206, a second sidewall 208 opposite the first sidewall 206, and a rear or end wall 210. The first sidewall 206 can define a first upper edge 207 opposite the base 204, and the second sidewall 208 can define a second upper edge 209 opposite the base 204, which can be opposite the first upper edge 207. The first upper edge 207 and the second upper edge 209 each can be regarded as an upper rail. Further, the base 204, the first sidewall 206, the second sidewall 208, and the rear or end wall 210 can be arranged to define an interior volume of the dragline bucket 102, such as shown in FIGS. 2-7 . The interior volume may be regarded as a working volume. The working volume of the dragline bucket 102 may be from 3 m³to 125 m³, as an example range. The interior volume of the dragline bucket 102 may additional or alternatively be referred to or regarded as bucket capacity (e.g., from CIMA capacity calculation). According to one or more embodiments, a horizontal plane P1 can extend through the base 204, such as shown in FIG. 3 . The horizontal plane P1 may be regarded as a first horizontal plane. At least a portion of the base 204 can be parallel to the horizontal plane P1, such as shown in FIG. 3 . According to one or more embodiments, the first sidewall 206, the first upper edge 207, the second sidewall 208, and the second upper edge 209 may be regarded as a first sidewall portion, a first upper edge portion, a second sidewall portion, and a second upper edge portion, respectively.
Optionally, each of the first sidewall 206 and the second sidewall 208 can comprise or consist of a plate or plates having a single thickness. Such single-thickness plate(s) per sidewall may be regarded as window plates. In this regard, according to one or more embodiments of the present disclosure, the first sidewall 206 and the second sidewall 208 can be formed of a single plate that extends from the base 204 to the respective first and second upper edges 207, 209, and such single plate can have a single or uniform thickness. A single thickness sidewall may be regarded as a single plate with no lap plates or interruption in plate “homogeneousness.” Area and thickness of the plate or plates having single thickness, i.e., single-thickness sidewall, can vary based on capacity and/or application.
The dragline bucket 102 can further include or define a first forward-facing projection 216 and a second forward-facing projection 218 opposite the first forward-facing projection 216 in a width direction of the dragline bucket 102. Optionally, the first forward-facing projection 216 and the second forward-facing projection 218 can be part of the first sidewall 206 and the second sidewall 208, respectively. Each of the first and second forward-facing projections 216, 218 may be regarded as a drag lug. The first and second forward-facing projections 216, 218 may each provide an attachment point 219, which may be, according to one example, a clevis pin-compatible attachment point. Further, such attachment point 219 may be regarded as a hitch point of the cheek plate. The attachment point 219 of each of the first and second forward-facing projections 216, 218 may be coupled directly or indirectly to respective drag ropes or draft rope portions (e.g., indirectly through a chain or chains connected directly to the attachment points 219 at one end and the drag rope(s) at the other end).
A lip assembly 212 can be provided at the front edge of the base 204 opposite the rear wall 210. Optionally, the lip assembly 212 may be part of the base 204. The lip assembly 212 can include a plurality of edge protectors 213 and/or a plurality of ground engaging tools 214. A vertical plane P2, which can be regarded as a first vertical plane, can extend through the horizontal plane P1 at an edge of the cutting lip of the lip assembly 212. Such edge of the cutting lip may also be referred to or regarded as a shroud base leading edge point. The vertical plane P2 can be regarded as a front capacity line. Further, where the vertical plane P2 crosses the horizontal plane P1 can be regarded as a lower capacity point LCP. The lower capacity point LCP can be vertically above the edge of the cutting lip/shroud base leading edge point. The LCP may be regarded as a front lower capacity point LCP.
A horizontal plane P3, which may be referred to as a second horizontal plane, can extend through at least a portion of the first upper edge portion 207 or the second upper edge portion 209 in a side elevational view, such as shown in FIG. 3 . Where the vertical plane P2 crosses the horizontal plane P3 can be regarded as an upper capacity point UCP. A plane corresponding to at least a portion of the first upper edge portion 207 and the second upper edge portion 209 in the side elevational view, for instance, extending from the UCP, can be +/− eight (8) degrees relative to the horizontal plane P3. The UCP may be regarded as a front upper capacity point UCP.
According to one or more embodiments, the lip assembly 212 and the first and second sidewalls 206, 208 may define a mouth of the dragline bucket 102. Optionally, according to one or more embodiments, the first and second forward-facing projections 216, 218 may not define the mouth of the dragline bucket 102. The first and second forward-facing projections 216, 218 may be regarded as cheek portions or plates. Optionally, as noted above, the first and second forward-facing projections 216, 218 may be part of the first sidewall 206 and the second sidewall 208, respectively. As such, front or leading portions of the first sidewall 206 and the second sidewall 208 may be regarded as cheek portions or plates.
The dragline bucket 102 may also include an arm 250. According to one or more embodiments, the arm 250, the lip assembly 212, and the front edges of the first and second sidewalls 206, 208 (including or excluding the first and second forward-facing projections 216, 218) may define a front ring assembly. The front ring assembly, according to one or more embodiments, may comprise or consist of the arm 250, the lip assembly 212, and at least the front edges of the first and second sidewalls 206, 208. The front ring assembly of the dragline bucket 102 may define a front or loading area of the dragline bucket 102. The arm 250 may be in the form of an arch, such as shown in the front elevational view of FIG. 4 . Accordingly, the arm 250 may be regarded or characterized as a ring-shaped arch. Further, based on positioning of arm 250, the dragline bucket 102 can be regarded or characterized as a quick-fill dragline bucket.
At least a portion of the arm 250, such as a distal end portion away from the first and second sidewalls 206, 208, can be forward of the lip assembly 212 (in the horizontal direction), such as shown in FIG. 3 . However, according to one or more embodiments, the distal end portion of the arm 250 may not extend past (in the horizontal direction) the attachment points 219 of the first and second forward-facing projections 216, 218, such as shown in FIG. 3 .
The arm 250, which may be linear or extend straight from the first and second sidewalls 206, 208 to the distal end thereof in a side elevational view, for instance, may also be tilted forward at an angle relative to a vertical plane extending from the leading edge at the distal end of the arm 250. Thus, the arch ring, which can be defined at least in part or fully by the arm 250, can be tilted forward at the angle with respect to the lip assembly 212. The angle can be acute, for instance, in a range from 17.5 degrees to 22.5 degrees. According to one or more embodiments, the angle can be 20 degrees. Having the arm 250 tilted forward at the angle can increase the stability of the dragline bucket 102.
The arm 250 can have a first end 256 fixedly coupled (e.g., welded) to the first sidewall 206 and a second end 258 fixedly coupled (e.g., welded) to the second sidewall 208. The first and second ends 256, 258 can be respectively fixedly coupled to an outside or outer portion of the first and second sidewalls 206, 208. Further, such fixed couplings of the first and second ends 256, 258 to the first and second sidewalls 206, 208 can be at the first and second upper edges 207, 209, according to one or more embodiments of the present disclosure. Such fixed couplings may be regarded as side weldings.
One or more dump anchors 280, each of which can be a fabrication or a casting, can be provided and fixedly coupled (e.g., welded) to an upper surface 257 of the arm 250. FIG. 2 and FIG. 4 show two dump anchors 280, though only one dump anchor 280 may be implemented. According to one or more embodiments, each dump anchor 280 may be regarded as part of the dragline bucket 102. The dump anchor 280 or dump anchors 280 (e.g., a pair of dump anchors 280) may be centered along the length of the arm 250, such as shown in FIG. 4 . Optionally, the dump anchors 280 may be separated from each other along the length of the arm 250, such as shown in FIG. 4 .
The base of the dump anchor 280 can be fixedly coupled to the upper surface 257 of arm 250. According to one or more embodiments, the base of the dump anchor 280 may be a relatively thick base plate, i.e., thicker than portions of the dump anchor 280 above the base.
According to one or more embodiments, a concave or cutout portion 220 can be between the arm 250 and each of the first and second forward-facing projections 216, 218, such as shown in FIG. 3 . Another concave or cutout portion 222 may be between each of the first and second forward-facing projections 216, 218 and the lip assembly 212, such as shown in FIG. 3 .
Referring still to FIG. 3 , and also again to FIG. 2 , the dragline bucket 102 according to embodiments of the present disclosure can have the dimensions L, FH, BH, and W.
The dimension FH may be defined as a vertical distance from the first horizontal plane P1, for instance, a horizontal plane extending through the base 204, to the second horizontal plane P3, for instance, a horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm 250, such as shown in FIG. 3 .
The dimension W can be regarded as a width of the lip assembly 212 and/or the mouth of the dragline bucket 102, such as shown in FIG. 14 . Additionally or alternatively, the dimension W can be regarded as a width or distance between the first and second forward-facing projections at their front edges and/or at their rear interfaces with the insides of the first and second sidewalls 206, 208 at the plane P1 extending through the base 204.
The dimension BH can be regarded as a dimension in the vertical direction from the horizontal plane P1, which, as noted above, can extend along the floor 204 of the dragline bucket 102, to a horizontal plane P4 extending through or at an uppermost portion of the body of the dragline bucket 102. In this context, the uppermost portion of the body of the dragline bucket 102 may be regarded or defined as the upper surfaces or edges of the first, second, and rear/end sidewalls/walls 206, 208, 210, which can include the first and second upper edges 207, 209 as well as the upper edge of the rear/end wall 210. According to one or more embodiments, the uppermost portion of the body can be at the rear/end wall 210, such as shown in FIG. 3 .
The dimension L can be regarded as a length from the vertical plane P2 to a vertical plane P5, which may be regarded as a second vertical plane, extending through a rear-most portion 211 of the body of the dragline bucket 102. The rear-most portion 211 can be at a point or portion along the height of the rear/end wall 210 (in a side elevational view of the dragline bucket 102). According to one or more embodiments, not all of the rear/end wall 210 can be the rear-most portion 211. For instance, as shown in FIG. 3 , the rear/end wall 210 can have one or more angled walls angled relative to vertical and that extend from the base 204 and the upper rail to form the rear-most portion 211, in this example, in the form of a point, in the side elevational view of the dragline bucket 102.
According to one or more embodiments, one or more, two or more, or three or more of the following equations can be satisfied: W/L can equal 1.18 to 1.30 (e.g., 1.24); FH/L can equal 0.57 to 0.63 (e.g., 0.60); BH/L can equal 0.64 to 0.70 (e.g., 0.67); and BH/FH can equal 1.06 to 1.18 (e.g., 1.12). For instance, according to one or more embodiments, the dimension FH can be 2875 mm, the dimension L can be 4800 mm, the dimension BH can be 3229 mm, and/or the dimension W can be 5930 mm.
The weight distribution of the dragline bucket 102 from teeth to heel, according to one or more embodiments of the present disclosure, can have a balance of from 55% to 58% (e.g., 56%) on the teeth and 42% to 45% (e.g., 44%) on the heel. Incidentally, as shown in FIG. 3 , an upper rear capacity point URCP can be at an intersection of the plane P4 and the plane P5, and a lower rear capacity point LRCP can be at an intersection of the plane P1 and the plane P5.
Turning to FIGS. 8-13 , these figures show a dragline bucket 402 according to one or more embodiments of the present disclosure. The dragline bucket 402 of FIGS. 8-13 may be regarded as a prime fill dragline bucket. Embodiments of the present disclosure, however, are not limited to the specific dragline bucket 402 shown in FIGS. 8-13 . The dragline bucket 402 itself may be regarded as a dragline bucket assembly. And the dragline bucket 402, in addition to being regarded as a prime fille dragline bucket, may be regarded as a clipped bucket (i.e., a clipped dragline bucket). Further, the dragline bucket 402 can have the same nomenclature as the dragline bucket 102 discussed above. As such, for brevity, such features will not be described again in detail. Notably, the dragline bucket 402, like the dragline bucket 102, can have the dimensions L, FH, BH, and W, as can dragline buckets according to one or more other embodiments of the present disclosure.
The dimension FH may be defined as a vertical distance from the first horizontal plane P1, for instance, a horizontal plane extending through the base 204, to the second horizontal plane P3, for instance, a horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm 250, such as shown in FIG. 9 .
The dimension W can be regarded as a width of the lip assembly 212 and/or the mouth of the dragline bucket 102, such as shown in FIG. 14 . Additionally or alternatively, the dimension W can be regarded as a width or distance between the first and second forward-facing projections at their front edges and/or at their rear interfaces with the insides of the first and second sidewalls 206, 208 at the plane P1 extending through the base 204.
The dimension BH can be regarded as a dimension in the vertical direction from the horizontal plane P1, which can extend along the floor 204 of the dragline bucket 402, to a horizontal plane P4 extending through or at an uppermost portion of the body of the dragline bucket 402. In this context, the uppermost portion of the body of the dragline bucket 402 may be regarded or defined as the upper surfaces or edges of the first, second, and rear/end sidewalls/walls 206, 208, 210, which can include the first and second upper edges 207, 209 as well as the upper edge of the rear/end wall 210. According to one or more embodiments, the uppermost portion of the body can be at the rear/end wall 210, such as shown in FIG. 9 .
The dimension L can be regarded as a length from the vertical plane P2 to a vertical plane P5, which may be regarded as a second vertical plane, extending through a rear-most portion 211 of the body of the dragline bucket 402. The rear-most portion 211 can be at a point or portion along the height of the rear/end wall 210 (in a side elevational view of the dragline bucket 102). According to one or more embodiments, not all of the rear/end wall 210 can be the rear-most portion 211. For instance, as shown in FIG. 9 , the rear/end wall 210 can have one or more angled walls angled relative to vertical and that extend from the base 204 and the upper rail to form the rear-most portion 211, in this example, in the form of a point, in the side elevational view of the dragline bucket 402.
According to one or more embodiments, one or more, two or more, or three or more of the following equations can be satisfied: W/L can equal 0.91 to 1.01 (e.g., 0/96); FH/L can equal 0.47 to 0.51 (e.g., 0.49); BH/L can equal 0.52 to 0.58 (e.g., 0.55); and BH/FH can equal 1.06 to 1.18 (e.g., 1.12). For instance, according to one or more embodiments, the dimension FH can be 2350 mm, the dimension L can be 4800 mm, the dimension BH can be 2640 mm, and/or the dimension W can be 4600 mm.
The weight distribution of the dragline bucket 102 from teeth to heel, according to one or more embodiments of the present disclosure, can have a balance of from 55% to 58% (e.g., 56%) on the teeth and 42% to 45% (e.g., 44%) on the heel. Incidentally, as shown in FIG. 9 , an upper rear capacity point URCP can be at an intersection of the plane P4 and the plane P5, and a lower rear capacity point LRCP can be at an intersection of the plane P1 and the plane P5.

INDUSTRIAL APPLICABILITY

Embodiments of the present disclosure relate to dragline buckets, and work machines, systems, and assemblies thereof. The dragline bucket according to one or more embodiments of the present disclosure may be regarded or referred to as a quick-fill dragline bucket or a prime fill dragline bucket. A quick-fill dragline bucket according to one or more embodiments of the present disclosure can be regarded as providing, relative to a comparative dragline bucket, less weight (e.g., −8%), greater productivity (e.g., +20% flat plane and +8% inclined plane), less specific energy (e.g., −14% flat plane and −9% inclined plane), less cycle time (e.g., −17% flat plane and −8% inclined plane), less total energy (e.g., −15% flat-plane, −9% inclined plane), and/or greater force (e.g., +2% flat and inclined planes). A prime fill dragline bucket according to one or more embodiments of the present disclosure can be regarded as providing, relative to a comparative dragline bucket, less weight (e.g., −8%), greater productivity (e.g., +15% flat plane and +7% inclined plane), less specific energy (e.g., −10% flat plane and −11% inclined plane), less cycle time (e.g., −13% flat plane and −6% inclined plane), less total energy (e.g., −10% flat-plane, −11% inclined plane), and/or greater force (e.g., +6% flat plane and +4% inclined plane).
During positioning of a conventional bucket at the start of digging (pointing vertically downwards), an arm thereof may take direct hits from the ground, especially in underwater digging. This can result in notches and/or material wear in the arm, which can lead to cracks in the weldment and parent material.
According to one or more embodiments of the present disclosure, a dragline bucket can be implemented or provided, such as the dragline bucket 102 or the dragline bucket 104.
The dragline bucket 102/402 can have opposing sidewalls, such as the first sidewall 206 and the second sidewall 208. According to one or more embodiments of the present disclosure, each of the first sidewall 206 and the second sidewall 208 can comprise or consist of a plate or plates having a single thickness. Such single-thickness plate(s) per sidewall may be regarded as window plates. In this regard, the first sidewall 206 and the second sidewall 208 can be formed of a single plate that extends from the base 204 to the respective first and second upper edges 207, 209, and such single plate can have a single or uniform thickness. Implementing a single window plate per side of the dragline bucket 102/402 can reduce the weight of the dragline bucket 102/402, the number of parts for the dragline bucket 102/402, manufacturing and process costs, assembly setup time costs, and/or welding costs.
The dragline bucket 102/402 can have an arm, such as the arm 250, which may be linear or extend straight from the first and second sidewalls 206, 208 to the distal end thereof in a side elevational view, for instance. The arm 250 may be tilted at an angle relative to vertical, again, in the side elevational view, such as shown in FIG. 3 and FIG. 9 . Thus, the arch ring, which can be defined at least in part or fully by the arm 250, can be tilted at the angle with respect to the lip assembly 212. The angle can be acute, for instance, in a range from 17.5 degrees to 22.5 degrees. According to one or more embodiments, the angle can be 20 degrees. Having the arm 250 tilted at the angle can cause the dragline bucket 102/402 to be more evenly balanced, which can increase the stability of the dragline bucket 102/402.
At least a portion of the arm 250, such as a distal end portion away from the first and second sidewalls 206, 208, can be forward of the lip assembly 212, such as shown in FIG. 3 and FIG. 9 . However, according to one or more embodiments, the distal end portion of the arm 250 may not extend past the attachment points 219 of the first and second forward-facing projections 216, 218, such as shown in FIG. 3 and FIG. 9 .
The dragline bucket 102 can have, according to one or more embodiments, the dimensions L, FH, BH, and W.
The dimension FH may be defined as a vertical distance from the first horizontal plane P1, for instance, a horizontal plane extending through the base 204, to the second horizontal plane P3, for instance, a horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm 250, such as shown in FIG. 3 . The dimension W can be regarded as a width of the lip assembly 212 and/or the mouth of the dragline bucket 102, such as shown in FIG. 14 . Additionally or alternatively, the dimension W can be regarded as a width or distance between the first and second forward-facing projections at their front edges and/or at their rear interfaces with the insides of the first and second sidewalls 206, 208 at the plane P1 extending through the base 204. The dimension BH can be regarded as a dimension in the vertical direction from the horizontal plane P1, which, as noted above, can extend along the floor 204 of the dragline bucket 102, to a horizontal plane P4 extending through or at an uppermost portion of the body of the dragline bucket 102. In this context, the uppermost portion of the body of the dragline bucket 102 may be regarded or defined as the upper surfaces or edges of the first, second, and rear/end sidewalls/walls 206, 208, 210, which can include the first and second upper edges 207, 209 as well as the upper edge of the rear/end wall 210. According to one or more embodiments, the uppermost portion of the body can be at the rear/end wall 210, such as shown in FIG. 3 . The dimension L can be regarded as a length from the vertical plane P2 to a vertical plane P5, which may be regarded as a second vertical plane, extending through a rear-most portion 211 of the body of the dragline bucket 102. The rear-most portion 211 can be at a point or portion along the height of the rear/end wall 210 (in a side elevational view of the dragline bucket 102). According to one or more embodiments, not all of the rear/end wall 210 can be the rear-most portion 211. For instance, as shown in FIG. 3 , the rear/end wall 210 can have one or more angled walls angled relative to vertical and that extend from the base 204 and the upper rail to form the rear-most portion 211, in this example, in the form of a point, in the side elevational view of the dragline bucket 102.
According to one or more embodiments, one or more, two or more, or three or more of the following equations can be satisfied: W/L can equal 1.18 to 1.30 (e.g., 1.24); FH/L can equal 0.57 to 0.63 (e.g., 0.60); BH/L can equal 0.64 to 0.70 (e.g., 0.67); and BH/FH can equal 1.06 to 1.18 (e.g., 1.12).
The dragline bucket 402 can have, according to one or more embodiments, the dimensions L, FH, BH, and W.
The dimension FH may be defined as a vertical distance from the first horizontal plane P1, for instance, a horizontal plane extending through the base 204, to the second horizontal plane P3, for instance, a horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm 250, such as shown in FIG. 9 .
The dimension W can be regarded as a width of the lip assembly 212 and/or the mouth of the dragline bucket 402. Additionally or alternatively, the dimension W can be regarded as a width or distance between the first and second forward-facing projections at their front edges and/or at their rear interfaces with the first and second sidewalls 206, 208. The dimension BH can be regarded as a dimension in the vertical direction from the horizontal plane P1, which can extend along the floor 204 of the dragline bucket 402, to a horizontal plane P4 extending through or at an uppermost portion of the body of the dragline bucket 402. In this context, the uppermost portion of the body of the dragline bucket 402 may be regarded or defined as the upper surfaces or edges of the first, second, and rear/end sidewalls/walls 206, 208, 210, which can include the first and second upper edges 207, 209 as well as the upper edge of the rear/end wall 210. According to one or more embodiments, the uppermost portion of the body can be at the rear/end wall 210, such as shown in FIG. 9 . The dimension L can be regarded as a length from the vertical plane P2 to a vertical plane P5, which may be regarded as a second vertical plane, extending through a rear-most portion 211 of the body of the dragline bucket 402. The rear-most portion 211 can be at a point or portion along the height of the rear/end wall 210 (in a side elevational view of the dragline bucket 102). According to one or more embodiments, not all of the rear/end wall 210 can be the rear-most portion 211. For instance, as shown in FIG. 9 , the rear/end wall 210 can have one or more angled walls angled relative to vertical and that extend from the base 204 and the upper rail to form the rear-most portion 211, in this example, in the form of a point, in the side elevational view of the dragline bucket 402.
According to one or more embodiments, one or more, two or more, or three or more of the following equations can be satisfied: W/L can equal 0.91 to 1.01 (e.g., 0/96); FH/L can equal 0.47 to 0.51 (e.g., 0.49); BH/L can equal 0.52 to 0.58 (e.g., 0.55); and BH/FH can equal 1.06 to 1.18 (e.g., 1.12). For instance, according to one or more embodiments, the dimension FH can be 2350 mm, the dimension L can be 4800 mm, the dimension BH can be 2640 mm, and/or the dimension W can be 4600 mm.
Generally speaking, dragline buckets according to embodiments of the present disclosure, including the dragline bucket 102 and/or the dragline bucket 402, can implement specific dimensional ratios such as those discussed above for dragline bucket 102 and/or dragline bucket 402, can maximize productivity and/or performance (e.g., loading and/or unloading performance). Such dragline bucket configurations may also weigh less than conventional dragline buckets. For instance, dragline buckets according to one or more embodiments of the present disclosure, such as dragline bucket 102, can reduce weight by 8% relative to a conventional dragline bucket; productivity can increase by 20% relative to certain flat-bed type dragline buckets and 8% relative to certain inclined bed type dragline buckets; specific energy can be reduced by 14% and 9% relative to certain flat-bed and inclined bed types of dragline buckets, respectively; operation cycle time can be reduced by 17% and 8% relative to certain flat-bed and inclined bed types of dragline buckets, respectively; total energy spent by machine can be reduced by 14% and 9% relative to certain flat-bed and inclined bed types of dragline buckets, respectively; and cost per ton (drag/dip only) savings of 21% and 12% relative to certain flat-bed and inclined bed types of dragline buckets, respectively. As another example, dragline buckets according to one or more embodiments of the present disclosure, such as dragline bucket 402, can reduce weight by 8% relative to a conventional dragline bucket; productivity can increase by 15% relative to certain flat-bed type dragline buckets and 7% relative to certain inclined bed type dragline buckets; specific energy can be reduced by 10% and 11% relative to certain flat-bed and inclined bed types of dragline buckets, respectively; operation cycle time can be reduced by 13% and 6% relative to certain flat-bed and inclined bed types of dragline buckets, respectively; total energy spent by machine can be reduced by 10% and 11% relative to certain flat-bed and inclined bed types of dragline buckets, respectively; and cost per ton (drag/dip only) savings of 17% and 12% relative to certain flat-bed and inclined bed types of dragline buckets, respectively. A
Embodiments of the disclosed subject matter can also be as set forth according to the following parentheticals.
(1) A dragline bucket comprising: a bottom wall; a first sidewall extending from the bottom wall and defining a first upper edge; a second sidewall opposite the first sidewall, extending from the bottom wall, and defining a second upper edge; a first forward-facing drag lug on a first side of the dragline bucket; a second forward-facing drag lung on a second side of the dragline bucket opposite the first side; a lip assembly at a front of the bottom wall; and an arm extending from the first side of the dragline bucket to the second side of the dragline bucket, a distal end of the arm being at a height greater than a height of respective first and second upper edges of the first and second sidewalls, wherein each of the first and second forward-facing drag lugs has an attachment point, wherein a portion of the arm overlaps a portion of the lip assembly in a vertical direction, wherein a forward-most edge of the arm does not overlap the attachment points of the first and second forward-facing drag lugs in the vertical direction, and wherein the dragline bucket satisfies the following equations: W/L=0.91 to 1.30; FH/L=0.47 to 0.63; BH/L=0.52 to 0.70; and BH/FH=1.06 to 1.18, where FH is a vertical distance from a first horizontal plane extending through the bottom wall to a second horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm, W is a width of a mouth of the dragline bucket, BH is a dimension in the vertical direction from the first horizontal plane to a third horizontal plane extending through or at an uppermost portion of a body of the dragline bucket, and L is a length from a first vertical plane extending through a lower capacity point of the dragline bucket to a second vertical plane extending through a rear-most portion of the body of the dragline bucket.
(2) The dragline bucket according to (1), wherein FH=2875 mm, L=4800 mm, BH=3229 mm, and/or W=5930 mm.
(3) The dragline bucket according to (1) or (2), wherein the arm is titled away from the rear wall at an angle relative to a vertical plane extending through a forward-most edge of the arm, the angle being from 17.5 degrees to 22.5 degrees, inclusive.
(4) The dragline bucket according to any one of (1) to (3), wherein in the side elevational view of the dragline bucket, the first forward-facing drag lug extends in a forward direction more than each of the arm and the lip assembly, and wherein in the side elevational view of the dragline bucket, the second forward-facing drag lug extends in the forward direction more than each of the arm and the lip assembly.
(5) The dragline bucket according to any one of (1) to (4), wherein the dragline bucket has a weight distribution from teeth to heel with a balance of 55% to 58% on the teeth and 42% to 45% on the heel.
(6) The dragline bucket according to any one of (1) to (5), further comprising one or more dump anchors each having a connection interface, each of the one or more dump anchors being welded to an upper surface of the arm, wherein the first sidewall has a first window portion having a single uniform plate thickness, and wherein the second sidewall has a second window portion having the single uniform plate thickness.
(7) A dragline bucket comprising: a bottom wall; a first sidewall extending from the bottom wall and defining a first upper edge; a second sidewall opposite the first sidewall, extending from the bottom wall, and defining a second upper edge; a first forward-facing drag lug on a first side of the dragline bucket; a second forward-facing drag lung on a second side of the dragline bucket opposite the first side; a lip assembly at a front of the bottom wall; and an arm extending from the first side of the dragline bucket to the second side of the dragline bucket, a distal end of the arm being at a height greater than a height of respective first and second upper edges of the first and second sidewalls, wherein each of the first and second forward-facing drag lugs has an attachment point, wherein a portion of the arm overlaps a portion of the lip assembly in a vertical direction, wherein the forward-most edge of the arm does not overlap the attachment points of the first and second forward-facing drag lugs in the vertical direction, and wherein the dragline bucket satisfies the following equations: W/L=0.91 to 1.30; FH/L=0.47 to 0.63; BH/L=0.52 to 0.70; and BH/FH=1.06 to 1.18, where FH is a vertical distance from a first horizontal plane extending through the bottom wall to a second horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm, W is a width of a mouth of the dragline bucket, BH is a dimension in the vertical direction from the first horizontal plane to a third horizontal plane extending through or at an uppermost portion of a body of the dragline bucket, and L is a length from a first vertical plane extending through a lower capacity point of the dragline bucket to a second vertical plane extending through a rear-most portion of the body of the dragline bucket.
(8) The dragline machine according to (7), wherein FH=2350 mm, L=4800 mm, BH=2640 mm, and/or W=4600 mm.
(9) The dragline bucket according to (7) or (8), wherein the arm is titled away from the rear wall at an angle relative to a vertical plane extending through a forward-most edge of the arm, the angle being from 17.5 degrees to 22.5 degrees, inclusive.
(10) The bucket machine according to any one of (7) to (9), wherein in the side elevational view of the dragline bucket, the first forward-facing drag lug extends in a forward direction more than each of the arm and the lip assembly, and wherein in the side elevational view of the dragline bucket, the second forward-facing drag lug extends in the forward direction more than each of the arm and the lip assembly.
(11) The dragline bucket according to any one of (7) to (10), wherein the dragline bucket further includes a cutout portion between the arm and each of the first and second forward-facing drag lugs.
(12) The dragline bucket according to any one of (7) to (11), wherein the dragline bucket has a weight distribution from teeth to heel with a balance of 55% to 58% on the teeth and 42% to 45% on the heel.
(13) The dragline bucket according to any one of (7) to (12), further comprising one or more dump anchors each having a connection interface, each of the one or more dump anchors being welded to an upper surface of the arm, wherein the first sidewall has a first window portion having a single uniform plate thickness, and wherein the second sidewall has a second window portion having the single uniform plate thickness.
(14) A method comprising: providing a dragline bucket, the dragline bucket including: a bottom wall; a first sidewall extending from the bottom wall and defining a first upper edge; a second sidewall opposite the first sidewall, extending from the bottom wall, and defining a second upper edge; a first forward-facing drag lug on a first side of the dragline bucket; a second forward-facing drag lung on a second side of the dragline bucket opposite the first side; a lip assembly at a front of the bottom wall; and an arm extending from the first side of the dragline bucket to the second side of the dragline bucket, a distal end of the arm being at a height greater than a height of respective first and second upper edges of the first and second sidewalls, wherein a portion of the arm overlaps a portion of the lip assembly in a vertical direction, and wherein the dragline bucket satisfies the following equations: W/L=0.91 to 1.30; FH/L=0.47 to 0.63; BH/L=0.52 to 0.70; and BH/FH=1.06 to 1.18, where FH is a vertical distance from a first horizontal plane extending through the bottom wall to a second horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm, W is a width of a mouth of the dragline bucket, BH is a dimension in the vertical direction from the first horizontal plane to a third horizontal plane extending through or at an uppermost portion of a body of the dragline bucket, and L is a length from a first vertical plane extending through a lower capacity point of the dragline bucket to a second vertical plane extending through a rear-most portion of the body of the dragline bucket.
(15) The method according to (14), wherein the dragline bucket satisfies the following equations: W/L=1.18 to 1.30; FH/L=0.57 to 0.63; BH/L=0.64 to 0.70; and BH/FH=1.06 to 1.18.
(16) The method bucket according to (14) or (15), wherein FH=2875 mm, L=4800 mm, BH=3229 mm, and/or W=5930 mm.
(17) The method bucket according to any one of (14) to (16), wherein the dragline bucket satisfies the following equations: W/L=0.91 to 1.01; FH/L=0.47 to 0.51; BH/L=0.52 to 0.58; and BH/FH=1.06 to 1.18.
(18) The method according to any one of (14) to (17), wherein FH=2350 mm, L=4800 mm, BH=2640 mm, and/or W=4600 mm.
(19) The method according to any one of (14) to (18), wherein the dragline bucket has a weight distribution from teeth to heel with a balance of 55% to 58% on the teeth and 42% to 45% on the heel.
It must be noted that, as used in the specification and the appended claims, the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. That is, unless clearly specified otherwise, as used herein the words “a” and “an” and the like carry the meaning of “one or more.” The use of the term “at least one” followed by a list of one or more items (for example, “at least one of A and B” or one or more of A and B”) is to be construed to mean one item selected from the listed items (A or B) or any combination of two or more of the listed items (A and B; A, A and B; A, B and B), unless otherwise indicated herein or clearly contradicted by context. Similarly, as used herein, the word “or” refers to any possible permutation of a set of items. For example, the phrase “A, B, or C” refers to at least one of A, B, C, or any combination thereof, such as any of: A; B; C; A and B; A and C; B and C; A, B, and C; or multiple of any item such as A and A; B, B, and C; A, A, B, C, and C; etc.
Additionally, it is to be understood that terms such as “left,” “right,” “top,” “bottom,” “front,” “rear,” “side,” “height,” “length,” “width,” “upper,” “lower,” “interior,” “exterior,” “inner,” “outer,” and the like that may be used herein, merely describe points of reference and do not necessarily limit embodiments of the disclosed subject matter to any particular orientation or configuration. Furthermore, terms such as “first,” “second,” “third,” etc., merely identify one of a number of portions, components, points of reference, operations and/or functions as described herein, and likewise do not necessarily limit embodiments of the disclosed subject matter to any particular configuration or orientation.
While aspects of the present disclosure have been particularly shown and described with reference to the embodiments above, it will be understood by those skilled in the art that various additional embodiments may be contemplated by the modification of the disclosed machines, assemblies, systems, and methods without departing from the spirit and scope of what is disclosed. Such embodiments should be understood to fall within the scope of the present disclosure as determined based upon the claims and any equivalents thereof.

Claims

1. A dragline bucket comprising:

a bottom wall;

a first sidewall extending from the bottom wall and defining a first upper edge;

a second sidewall opposite the first sidewall, extending from the bottom wall, and defining a second upper edge;

a first forward-facing drag lug on a first side of the dragline bucket;

a second forward-facing drag lung on a second side of the dragline bucket opposite the first side;

a lip assembly at a front of the bottom wall; and

an arm extending from the first side of the dragline bucket to the second side of the dragline bucket, a distal end of the arm being at a height greater than a height of respective first and second upper edges of the first and second sidewalls,

wherein each of the first and second forward-facing drag lugs has an attachment point,

wherein a portion of the arm overlaps a portion of the lip assembly in a vertical direction,

wherein a forward-most edge of the arm does not overlap the attachment points of the first and second forward-facing drag lugs in the vertical direction, and

wherein the dragline bucket satisfies the following equations:

W/L=0.91 to 1.30;

FH/L=0.47 to 0.63;

BH/L=0.52 to 0.70; and

BH/FH=1.06 to 1.18, where

FH is a vertical distance from a first horizontal plane extending through the bottom wall to a second horizontal plane above the first horizontal plane and that extends at or under a base portion of the arm,

W is a width of a mouth of the dragline bucket,

BH is a dimension in the vertical direction from the first horizontal plane to a third horizontal plane extending through or at an uppermost portion of a body of the dragline bucket, and

L is a length from a first vertical plane extending through a lower capacity point of the dragline bucket to a second vertical plane extending through a rear-most portion of the body of the dragline bucket.

2. The dragline bucket according to claim 1, wherein FH=2875 mm, L=4800 mm, BH=3229 mm, and/or W=5930 mm.

3. The dragline bucket according to claim 1, wherein the arm is titled away from the rear wall at an angle relative to a vertical plane extending through a forward-most edge of the arm, the angle being from 17.5 degrees to 22.5 degrees, inclusive.

4. The dragline bucket according to claim 1,

wherein in the side elevational view of the dragline bucket, the first forward-facing drag lug extends in a forward direction more than each of the arm and the lip assembly, and

wherein in the side elevational view of the dragline bucket, the second forward-facing drag lug extends in the forward direction more than each of the arm and the lip assembly.

5. The dragline bucket according to claim 1, wherein the dragline bucket has a weight distribution from teeth to heel with a balance of 55% to 58% on the teeth and 42% to 45% on the heel.

6. The dragline bucket according to claim 1, further comprising one or more dump anchors each having a connection interface, each of the one or more dump anchors being welded to an upper surface of the arm,

wherein the first sidewall has a first window portion having a single uniform plate thickness, and

wherein the second sidewall has a second window portion having the single uniform plate thickness.

7. A dragline bucket comprising:

a bottom wall;

a first forward-facing drag lug on a first side of the dragline bucket;

a lip assembly at a front of the bottom wall; and

wherein the forward-most edge of the arm does not overlap the attachment points of the first and second forward-facing drag lugs in the vertical direction, and

wherein the dragline bucket satisfies the following equations:

W/L=0.91 to 1.30;

FH/L=0.47 to 0.63;

BH/L=0.52 to 0.70; and

BH/FH=1.06 to 1.18, where

W is a width of a mouth of the dragline bucket,

8. The dragline machine according to claim 7, wherein FH=2350 mm, L=4800 mm, BH=2640 mm, and/or W=4600 mm.

9. The dragline bucket according to claim 7, wherein the arm is titled away from the rear wall at an angle relative to a vertical plane extending through a forward-most edge of the arm, the angle being from 17.5 degrees to 22.5 degrees, inclusive.

10. The bucket machine according to claim 7,

11. The dragline bucket according to claim 7, wherein the dragline bucket further includes a cutout portion between the arm and each of the first and second forward-facing drag lugs.

12. The dragline bucket according to claim 7, wherein the dragline bucket has a weight distribution from teeth to heel with a balance of 55% to 58% on the teeth and 42% to 45% on the heel.

13. The dragline bucket according to claim 7, further comprising one or more dump anchors each having a connection interface, each of the one or more dump anchors being welded to an upper surface of the arm,

14. A method comprising:

providing a dragline bucket, the dragline bucket including:

a bottom wall;

a first forward-facing drag lug on a first side of the dragline bucket;

a lip assembly at a front of the bottom wall; and

wherein a portion of the arm overlaps a portion of the lip assembly in a vertical direction, and

wherein the dragline bucket satisfies the following equations:

W/L=0.91 to 1.30;

FH/L=0.47 to 0.63;

BH/L=0.52 to 0.70; and

BH/FH=1.06 to 1.18, where

W is a width of a mouth of the dragline bucket,

15. The method according to claim 14, wherein the dragline bucket satisfies the following equations:

W/L=1.18 to 1.30;

FH/L=0.57 to 0.63;

BH/L=0.64 to 0.70; and

BH/FH=1.06 to 1.18.

16. The method bucket according to claim 15, wherein FH=2875 mm, L=4800 mm, BH=3229 mm, and/or W=5930 mm.

17. The method bucket according to claim 14, wherein the dragline bucket satisfies the following equations:

W/L=0.91 to 1.01;

FH/L=0.47 to 0.51;

BH/L=0.52 to 0.58; and

BH/FH=1.06 to 1.18.

18. The method according to claim 17, wherein FH=2350 mm, L=4800 mm, BH=2640 mm, and/or W=4600 mm.

19. The method according to claim 14, wherein the dragline bucket has a weight distribution from teeth to heel with a balance of 55% to 58% on the teeth and 42% to 45% on the heel.