CN113184700A

CN113184700A - Tower crane rope supporting trolley and tower crane

Info

Publication number: CN113184700A
Application number: CN202110556483.3A
Authority: CN
Inventors: 徐瀚; 刘天贵; 陈亮
Original assignee: Yueyang Pengcheng Construction Group Co Ltd
Current assignee: Yueyang Pengcheng Construction Group Co Ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-07-30
Anticipated expiration: 2041-05-21
Also published as: CN113184700B

Abstract

The invention discloses a rope supporting trolley of a tower crane and the tower crane, belonging to the technical field of tower cranes, and comprising a cross-shaped frame, pulleys and travelling wheels, wherein the cross-shaped frame comprises a first frame and a second frame which are arranged vertically, the first frame is symmetrically provided with digging holes, the pulleys are arranged in the digging holes, hollow grooves are formed in two sides of the digging holes of the first frame, sliders are arranged in the hollow grooves, cover plates are arranged on the hollow grooves, the tops of the sliders are provided with limit columns, two ends of a pulley rotating shaft of each pulley are connected with bearings in the sliders on two sides, pulley protective covers are arranged below the pulleys, and the pulley protective covers are connected with the sliders on two sides through connecting components; the second frame both ends are provided with the tripod of symmetry, and the tripod is vertical setting and its top is provided with the walking wheel, and the tripod top is provided with the walking wheel safety cover, and the walking wheel safety cover is located walking wheel upper portion, is provided with the buffering subassembly in the walking wheel pivot of walking wheel.

Description

Tower crane rope supporting trolley and tower crane

Technical Field

The invention relates to the technical field of tower cranes, in particular to a rope supporting trolley of a tower crane and the tower crane.

Background

Tower crane (tower crane) is a rotating crane with a movable arm mounted on the upper part of a high tower body. The large-scale vertical conveying device has large operation space, is mainly used for vertical and horizontal conveying of materials and installation of building components in building construction, and is heavy machinery commonly used in building construction. The tower crane comprises a cargo boom and a load trolley with trolley wheels and a trolley frame, wherein one end of each trolley wheel is connected with the trolley frame, and each trolley wheel can roll on the cargo boom. The load trolley is a core component of the tower crane, and the structure of the load trolley has important influence on the overall performance of the crane.

Most of the existing load rope-supporting trolleys of tower cranes are of square structures and are mainly formed by welding square steel, channel steel and angle steel. Because the center distance of the pulleys must be ensured to be a certain distance, because the pulleys are in a fixed design, in order to avoid mutual stirring of the steel wire ropes in the air in the hoisting process, the center distance of the front and rear pulleys needs to be increased, but the steel consumption needs to be correspondingly increased, so that the total mass of the trolley is larger, if the cost needs to be reduced, the center distance of the pulleys is reduced, the working efficiency is reduced, and the hoisting capacity of the crane is influenced.

The travelling wheels of the existing load-carrying rope-supporting trolley are not provided with protective covers, so that the wheel shafts of the trolley can be broken to cause the wheels to fall off under long-term heavy load, and potential safety hazards exist. In addition, the trolley travelling wheels are generally arranged at four corners, so that the four travelling wheels of the trolley are relatively difficult to travel on a plane, the workload of correction and maintenance is increased, the condition of single-wheel single-side abrasion is easy to occur, the stress of the tower crane trolley is uneven, and the working stability and safety are affected.

Disclosure of Invention

The invention aims to solve the problems, and provides a rope supporting trolley of a tower crane and the tower crane.

In order to realize the purpose, the invention adopts the technical scheme that: the rope supporting trolley comprises a cross-shaped frame, pulleys and travelling wheels, wherein the cross-shaped frame comprises a first frame and a second frame which are perpendicular to each other, the first frame is symmetrically provided with an excavation hole, the pulleys are arranged in the excavation hole, the first frame is positioned at two sides of the excavation hole and provided with hollow grooves, sliders are arranged in the hollow grooves, cover plates are arranged on the hollow grooves, the tops of the sliders are provided with limiting columns, the limiting columns penetrate through the cover plates and are matched with nuts to limit the sliders, two ends of a pulley rotating shaft of each pulley are connected with bearings in the sliders at two sides, pulley protective covers are arranged below the pulleys, and the pulley protective covers are connected with the sliders at two sides through connecting components; the second frame both ends are provided with the tripod of symmetry, and the tripod is provided with the walking wheel for vertical setting and its top, and the tripod top is provided with the walking wheel safety cover, and the walking wheel safety cover is located walking wheel upper portion, be provided with the buffer assembly in the walking wheel pivot of walking wheel.

Furthermore, the tripod comprises inverted triangular mounting plates which are arranged in pairs, mounting holes are formed in the two triangular mounting plates, and the travelling wheel rotating shaft is mounted on one side of each triangular mounting plate through the mounting holes; the walking wheel protective cover is of a cover structure with an opening at the bottom, the walking wheel protective cover is sleeved on the walking wheel and shields the upper part of the walking wheel, and the walking wheel protective cover is connected to the triangular mounting plate.

Further, be located between two triangle-shaped mounting panels and walk to take turns pivot top and be provided with buffering subassembly, buffering subassembly includes the backup pad, and the backup pad bottom is provided with the buffer block, and the buffer block below is provided with the buffer board of activity, and the buffer board bottom is provided with the arc limiting plate, and the arc limiting plate cover is located and is walked in the wheel pivot and arc limiting plate both ends all stretch into the mounting hole.

Furthermore, the buffer block is of a semicircular structure made of rubber, the buffer plate is of an arc structure, two ends of the buffer plate penetrate through the through holes in the supporting plate, and baffle plates are arranged at two ends of the buffer plate above the supporting plate; the arc limiting plate is downward in opening and the top of the arc limiting plate is connected with the bottom of the buffer plate.

Further, the apron passes through bolt-up and connects at the hollow groove top, has seted up the second through-hole on the apron, spacing post passes the second through-hole on the apron, and the external screw thread has been attacked on spacing post surface, and spacing post cooperation nut compresses tightly the apron through the nut and carries on spacingly with spacing post.

Furthermore, the second through hole is of a long strip hole-shaped structure, and scale marks are arranged at the side positions of the second through hole.

Further, the pulley safety cover is open-top's housing structure, and the through-hole has been seted up in order keeping away the sky for wire rope to the symmetry on the bottom plate of pulley safety cover, and pulley safety cover is located the pulley lower part just shields the pulley lower part, and the slider of pulley safety cover both sides through coupling assembling and both sides links to each other.

Furthermore, the connecting assembly comprises a first connecting plate, the first connecting plate is connected with the bottom of the sliding block, the first connecting plate penetrates through a second through hole in the bottom of the hollow groove, a second connecting plate is arranged at the bottom end of the first connecting plate, and the second connecting plate is connected with the pulley protection cover; the second through hole is of a long strip-shaped structure.

Furthermore, set up the first through-hole of rectangular shape on the cavity slot lateral wall, the pulley pivot pass first through-hole with bearing that is provided with in the slider links to each other.

Furthermore, a first reinforcing rib is arranged between the first frame and the second frame, a second reinforcing rib is arranged between the tripod and the second frame, and a reinforcing rib is arranged between the two paired triangular mounting plates of the tripod.

In addition, the invention provides a tower crane, which comprises a rope supporting trolley, wherein the rope supporting trolley is the tower crane rope supporting trolley.

The invention has the beneficial effects that:

1. through adopting crisscross whole frame design with the dolly, be favorable to reducing the use of material, be provided with whole slidable pulley on the first frame of cross frame, realize the regulation of both sides pulley centre-to-centre spacing to gain the in-process that increases pulley centre-to-centre spacing and need not to increase the dolly volume, avoided adopting more steel to lead to whole weight increase scheduling problem. Wherein the pulley sets up in the downthehole of digging of first frame, first frame is located and digs the hole both sides and is provided with the hollow groove, the hollow inslot is provided with the slider, it links to each other with the pulley pivot to be provided with the bearing in the slider, the pulley top is provided with spacing post, spacing post passes the second through-hole on the apron, the cooperation is provided with the nut on the spacing post, the nut compresses tightly the apron and carries on spacingly with spacing post, thereby carry out spacing fixed with the slider, thereby realize through not hard up nut, and promote spacing post and pass the slider, can realize the position control of pulley. And the second through hole side is provided with the scale mark for the position control of pulley is convenient more accurate.

2. The pulley protection cover is arranged at the bottom of the pulley, the lower portion of the pulley is shielded and protected by the pulley protection cover, and two sides of the pulley protection cover are connected with the sliding block through the connecting assembly, so that the sliding block, the pulley and the pulley protection cover can move synchronously. The pulley rotates in the pulley protection cover, and in case accidents such as broken shaft of the pulley rotating shaft occur, the pulley falls into the pulley protection cover and cannot directly fall off, and temporary rotation can be carried out in the pulley protection cover so as to carry out maintenance after timely discharging.

3. The walking wheel protective cover is arranged above the walking wheel, the walking wheel protective cover shields the upper part of the walking wheel, when the walking wheel breaks the axle, the walking wheel moves upwards, the walking wheel is caught by the walking wheel protective cover, and temporary movement can be carried out in the walking wheel protective cover, so that the walking wheel protective cover can be timely transferred and maintained.

4. In addition, in order to make a plurality of walking wheels can keep rotating work on the same horizontal plane, each walking wheel is designed in a floating mode, and a buffer assembly is arranged above a rotating shaft of each walking wheel, so that certain height adjusting allowance is formed among the walking wheels. Wherein walking is equipped with the arc limiting plate in the pivot, and the arc limiting plate just both all have certain surplus of floating with walking to take turns the pivot to being located the mounting hole simultaneously, and arc limiting plate top is to linking with the buffer board at the intermediate position, and curved buffer board is connected and can be stretched out and drawn back in the backup pad, is provided with the buffer block between buffer board and the backup pad. The walking wheel rotating shaft applies upward impact force to the arc limiting plate, the buffer plate is bent by the impact force, and the buffer plate is contacted with the buffer block, so that multiple buffering effect is formed, and certain up-and-down floating allowance is provided by the buffer plate.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the installation of the pulley of the present invention.

FIG. 3 is a schematic structural diagram of a cushion assembly according to the present invention.

Fig. 4 is a schematic view of the installation of the pulley guard of the present invention.

Fig. 5 is a schematic view of the installation of the slider of the present invention.

Fig. 6 is a schematic structural view of the cover portion of the present invention.

Fig. 7 is a schematic view of the mounting of the road wheel protective cover of the present invention.

The text labels in the figures are represented as: 1. a first reinforcing rib; 2. a first frame; 3. a second frame; 4. a second reinforcing rib; 5. a tripod; 6. a traveling wheel protective cover; 7. a traveling wheel; 8. a pulley; 9. a pulley rotating shaft; 10. a limiting column; 11. a cover plate; 12. a first through hole; 13. a first connecting plate; 14. a second connecting plate; 15. a pulley protection cover; 16. a traveling wheel rotating shaft; 17. a buffer plate; 18. a buffer block; 19. a baffle plate; 20. a support plate; 21. an arc limiting plate; 22. digging a hole; 23. a second through hole; 24. a third through hole; 25. a slider; 26. a hollow groove; 27. a nut; 28. scale lines; 29. and (7) installing holes.

Detailed Description

The invention is further illustrated by the following examples.

The rope supporting trolley of the tower crane comprises a cross-shaped frame, pulleys 8 and walking wheels 7, wherein the cross-shaped frame comprises a first frame 2 and a second frame 3 which are perpendicular to each other, digging holes 22 are symmetrically formed in the first frame 2, the pulleys 8 are arranged in the digging holes 22, hollow grooves 26 are formed in two sides, located on the digging holes 22, of the first frame 2, sliders 25 are arranged in the hollow grooves 26, cover plates 11 are arranged on the hollow grooves 26, limiting columns 10 are arranged at the tops of the sliders 25, the limiting columns 10 penetrate through the cover plates 11 and are matched with nuts 27 to limit the sliders 25, two ends of pulley rotating shafts 9 of the pulleys 8 are connected with bearings in the sliders 25 on two sides, pulley protection covers 15 are arranged below the pulleys 8, and the pulley protection covers 15 are connected with the sliders 25 on two sides through connecting components; the utility model discloses a walking wheel, including second frame 3, tripod 5, walking wheel protective cover 6, walking wheel pivot 16, the tripod 5 both ends of second frame are provided with symmetrical tripod 5, and tripod 5 is provided with walking wheel 7 for vertical setting and its top, and 5 tops of tripod are provided with walking wheel protective cover 6, and walking wheel protective cover 6 is located walking wheel 7 upper portion, be provided with the buffering subassembly on walking wheel pivot 16 of walking wheel 7.

Preferably, as shown in fig. 1, 3 and 7, the tripod 5 includes inverted triangular mounting plates, the triangular mounting plates are arranged in pairs, mounting holes 29 are formed in both the two triangular mounting plates, and the travelling wheel rotating shaft 16 is mounted on one side of the triangular mounting plates through the mounting holes 29; the walking wheel protection cover 6 is of a cover structure with an opening at the bottom, the walking wheel protection cover 6 is sleeved on the walking wheel 7 and shields the upper part of the walking wheel 7, and the walking wheel protection cover 6 is connected to the triangular mounting plate. Be located between two triangle-shaped mounting panels and take turns 16 tops and be provided with buffering subassembly, buffering subassembly includes

backup pad

20, and 20 bottoms in backup pad are provided with

buffer block

18, and 18 below buffer blocks are provided with the buffer board 17 of activity, and the buffer board 17 bottom is provided with arc limiting plate 21, and arc limiting plate 21 cover is located and is taken turns pivot 16 and arc limiting plate 21 both ends all stretch into in the mounting hole 29. The buffer block 18 is of a semicircular structure made of rubber, the buffer plate 17 is of an arc structure, two ends of the buffer plate 17 penetrate through holes in the support plate 20, and baffle plates 19 are arranged at two ends of the buffer plate 17 above the support plate 20; the arc limiting plate 21 is downward opened and the top of the arc limiting plate is connected with the bottom of the buffer plate 17.

The triangular mounting plates have high stability, and the triangular mounting plates arranged in pairs form the triangular support 5, so that the triangular support has high strength and is convenient for arranging the buffer assembly; buffering subassembly still provides certain unsteady surplus for walking wheel 7 when providing the cushioning effect of walking in-process for walking wheel 7 for each walking wheel 7 can keep in coplanar motion as far as, thereby makes the operation of dolly more steady, and is favorable to reducing the wearing and tearing of single walking wheel 7, improves the life of walking wheel 7.

Preferably, as shown in fig. 1, fig. 2, fig. 5 and fig. 6, the cover plate 11 is fastened and connected to the top of the hollow groove 26 through a bolt, the cover plate 11 is provided with a second through hole 23, the limit post 10 penetrates through the second through hole 23 of the cover plate 11, an external thread is tapped on the surface of the limit post 10, and the limit post 10 cooperates with the nut 27 and compresses the cover plate 11 through the nut 27 to limit the limit post 10. The second through hole 23 is a long strip-shaped hole-shaped structure, and the side edge of the second through hole 23 is provided with scale marks 28. The arrangement of the scale marks 28 can facilitate the position adjustment of the pulleys 8 on two sides, and the accuracy of the position adjustment of the pulleys 8 can also be ensured.

Preferably, as shown in fig. 1 and 4, the pulley protection cover 15 is a cover structure with an open top, through holes are symmetrically formed in a bottom plate of the pulley protection cover 15 to avoid a gap for the steel wire rope, the pulley protection cover 15 is sleeved on the lower portion of the pulley 8 and shields the lower portion of the pulley 8, and two sides of the pulley protection cover 15 are connected with the sliding blocks 25 on two sides through connecting components. The connecting assembly comprises a first connecting plate 13, the first connecting plate 13 is connected with the bottom of the sliding block 25, the first connecting plate 13 penetrates through a third through hole 24 in the bottom of the hollow groove 26, a second connecting plate 14 is arranged at the bottom end of the first connecting plate 13, and the second connecting plate 14 is connected with the pulley protection cover 15; the third through hole 24 is a strip-shaped structure.

Preferably, as shown in fig. 1, a first through hole 12 is formed in a side wall of the hollow groove 26, and the pulley rotating shaft 9 passes through the first through hole 12 to be connected to a bearing disposed in the slider 25.

Preferably, as shown in fig. 1 and 2, a first reinforcing rib 1 is disposed between the first frame 2 and the second frame 3, a second reinforcing rib 4 is disposed between the tripod 5 and the second frame 3, and a reinforcing rib is disposed between two paired triangular mounting plates of the tripod 5. The reinforcing ribs are arranged at all positions, so that the overall stability and rigidity of the trolley are enhanced, and the use safety is improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. Tower crane holds in palm rope dolly, including cross frame, pulley (8) and walking wheel (7), its characterized in that, the cross frame includes first frame (2) and second frame (3) that mutually perpendicular set up, excavation hole (22) have been seted up to symmetry on first frame (2), are provided with pulley (8) in excavation hole (22), well grooving (26) have been seted up to first frame (2) both sides that are located excavation hole (22), are provided with slider (25) in well grooving (26), are provided with apron (11) on well grooving (26), slider (25) top is provided with spacing post (10), and spacing post (10) pass apron (11) and cooperate nut (27) to carry out spacing with slider (25), pulley pivot (9) both ends of pulley (8) are connected with the bearing in the slider (25) of both sides, and pulley (8) below is provided with safety cover (15), the pulley protection cover (15) is connected with the sliding blocks (25) on the two sides through the connecting component; the novel walking wheel is characterized in that symmetrical tripods (5) are arranged at two ends of the second frame (3), walking wheels (7) are arranged on the tripods (5) in a vertical mode and at the tops of the tripods (5), walking wheel protection covers (6) are arranged at the tops of the tripods (5), the walking wheel protection covers (6) are located on the upper portions of the walking wheels (7), and buffering assemblies are arranged on walking wheel rotating shafts (16) of the walking wheels (7).

2. The rope supporting trolley of the tower crane according to claim 1, wherein the triangular supports (5) comprise inverted triangular mounting plates, the triangular mounting plates are arranged in pairs, mounting holes (29) are formed in both the triangular mounting plates, and the travelling wheel rotating shaft (16) is mounted on one side of each triangular mounting plate through the mounting holes (29); the walking wheel protective cover (6) is of a cover structure with an opening at the bottom, the walking wheel protective cover (6) is sleeved on the walking wheel (7) and shields the upper part of the walking wheel (7), and the walking wheel protective cover (6) is connected to the triangular mounting plate.

3. The rope supporting trolley for the tower crane according to claim 2, wherein the buffering component is arranged between the two triangular mounting plates and above the walking wheel rotating shaft (16), the buffering component comprises a supporting plate (20), a buffering block (18) is arranged at the bottom of the supporting plate (20), a movable buffering plate (17) is arranged below the buffering block (18), an arc limiting plate (21) is arranged at the bottom of the buffering plate (17), the walking wheel rotating shaft (16) is sleeved with the arc limiting plate (21), and two ends of the arc limiting plate (21) extend into the mounting holes (29).

4. The rope supporting trolley of the tower crane according to claim 3, wherein the buffer block (18) is of a semicircular structure made of rubber, the buffer plate (17) is of an arc structure, two ends of the buffer plate (17) penetrate through holes in the supporting plate (20), and baffle plates (19) are arranged at two ends of the buffer plate (17) above the supporting plate (20); the arc limiting plate (21) is downward in opening, and the top of the arc limiting plate is connected with the bottom of the buffer plate (17).

5. The rope supporting trolley for the tower crane according to claim 1, wherein the cover plate (11) is fixedly connected to the top of the hollow groove (26) through bolts, a second through hole (23) is formed in the cover plate (11), the limiting column (10) penetrates through the second through hole (23) in the cover plate (11), external threads are tapped on the surface of the limiting column (10), and the limiting column (10) is matched with the nut (27) and is used for limiting the limiting column (10) by pressing the cover plate (11) through the nut (27).

6. The rope supporting trolley for the tower crane according to claim 5, wherein the second through hole (23) is of a long strip hole-shaped structure, and scale marks (28) are arranged at the side edge of the second through hole (23).

7. The rope supporting trolley for the tower crane according to claim 1, wherein the pulley protection cover (15) is of a cover structure with an open top, through holes are symmetrically formed in a bottom plate of the pulley protection cover (15) to avoid a gap for the steel wire rope, the pulley protection cover (15) is sleeved on the lower portion of the pulley (8) and shields the lower portion of the pulley (8), and two sides of the pulley protection cover (15) are connected with the sliding blocks (25) on two sides through connecting components.

8. The rope supporting trolley for the tower crane according to claim 7, wherein the connecting assembly comprises a first connecting plate (13), the first connecting plate (13) is connected with the bottom of the sliding block (25), the first connecting plate (13) penetrates through a third through hole (24) at the bottom of the hollow groove (26), a second connecting plate (14) is arranged at the bottom end of the first connecting plate (13), and the second connecting plate (14) is connected with the pulley protecting cover (15); the third through hole (24) is of a long strip-shaped structure.

9. The rope supporting trolley of the tower crane according to claim 1, wherein a first elongated through hole (12) is formed in the side wall of the hollow groove (26), and the pulley rotating shaft (9) penetrates through the first through hole (12) to be connected with a bearing arranged in the sliding block (25); be provided with first strengthening rib (1) between first frame (2) and second frame (3), be provided with second strengthening rib (4) between tripod (5) and second frame (3), be provided with the strengthening rib between two mated triangle-shaped mounting panels of tripod (5).

10. A tower crane comprising a rope trolley for a tower crane according to any one of claims 1 to 9.