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EP2377993A2 - Dispositif d'épandage pour substance de masse de construction de routes - Google Patents

Dispositif d'épandage pour substance de masse de construction de routes Download PDF

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Publication number
EP2377993A2
EP2377993A2 EP11162271A EP11162271A EP2377993A2 EP 2377993 A2 EP2377993 A2 EP 2377993A2 EP 11162271 A EP11162271 A EP 11162271A EP 11162271 A EP11162271 A EP 11162271A EP 2377993 A2 EP2377993 A2 EP 2377993A2
Authority
EP
European Patent Office
Prior art keywords
spreading device
spreading
adjustment
blade
front frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11162271A
Other languages
German (de)
English (en)
Other versions
EP2377993A3 (fr
Inventor
Esa MÄNTYNEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EPT Kone Ja Laite Oy
Original Assignee
EPT Kone Ja Laite Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EPT Kone Ja Laite Oy filed Critical EPT Kone Ja Laite Oy
Publication of EP2377993A2 publication Critical patent/EP2377993A2/fr
Publication of EP2377993A3 publication Critical patent/EP2377993A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/15—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for laying-down uncoated stone or similar materials, or for striking-off or spreading same without compacting, e.g. for crushed rock base courses, sand cushions for paving
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E01C19/4806—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely rollers for consolidating or finishing
    • E01C19/482—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely rollers for consolidating or finishing the materials being uncoated stone or similar granular materials, e.g. sand

Definitions

  • the present invention relates to a spreading device for a road-construction mass substance, which is intended to be used as an accessory to a work machine, and which includes
  • the load-bearing layer usually consists of a suitable grade of gravel, crushed stone, or other soil. If the spreading of the load-bearing layer is unsuccessful, the road structure will be insufficiently durable, and it will not meet the requirements set for the structure.
  • the prior art is represented by the spreader pushed by a work machine, which is attached in place of the bucket of the work machine, and which is disclosed in Finnish patent FI 92944 .
  • the layer thickness of the road-construction mass being spread is regulated roughly with the aid of a blade set horizontally. Unevennesses in the base surface mean that the working depth of the blade must be changed actively, in order for the result to be an even surface.
  • the horizontally set blade has a large surface area relative to the road-construction mass being spread, making it difficult to adjust the blade sufficiently rapidly according to surface profiles of the base surface while driving, due to the great resistance of the mass layer.
  • the mass layer resists the rapid downwards-directed adjustment movement so powerfully that the vertical cylinders used for the adjustment lift the wheels of the front frame into the air. In other words, a horizontal blade is slow and imprecise in terms of adjustment properties.
  • the present invention is intended to create a road-construction mass spreader, with a faster and more precise adjustment than that of devices according to the prior art.
  • the characteristic features of the present invention appear in the accompanying Claim 1.
  • the spreading device includes a front frame and a rear frame connected to each other and arranged to form a feed silo for the road-construction mass being spread, a throat opening between the front frame and the rear frame, and a blade fitted to the rear frame.
  • the spreader includes carrier wheels articulated to the front frame, an attachment counter-piece articulated to the rear frame, and operating devices for regulating the layer thickness of the road-construction mass being spread.
  • the vertical blade together with the fine-adjustment operating device permit the rapid adjustment of the blade height according to the shape of the surface of the road bed being surfaced, because the mass layer being spread only slightly resists the movements of the vertical blade.
  • the front frame preferably includes at least one rough-adjustment operating device to adjust the height of the front frame, with the aid of which the rough adjustment of the height of the blade of the spreader is arranged to take place.
  • the height of the spreader blade can be adjusted in two stages, which permits a precise adjustment.
  • the spreading device further preferably includes a spreading plough articulated to the front frame inside the throat opening, in order to prevent arching of the mass.
  • the spreading plough can be articulated to be able to move.
  • the spreading plough can include a support wheel to support the spreading plough against the base surface.
  • the spreading device can include adjustable side plates attached to the sides of the blade in the rear frame, for limiting the lateral spreading of the mass to the selected width.
  • the spreader is suitable for use with several different road widths and layer thicknesses.
  • the fine-adjustment operating device is located in the rear frame and arranged to adjust the height and degree of tilt of the blade.
  • the spreading device includes a buffer beam articulated in its centre in front of the front frame, in order to permit driving into a curve.
  • the spreading device is arranged to be pushed by a work machine. In that way, the heavy work machine will not disturb the soft road bed before the road-construction mass has been spread.
  • the operating devices are preferably arranged to perform the rough adjustment of the road-construction mass being spread with the aid of the rough-adjustment device, by adjusting the height of the front frame, and the fine adjustment with the aid of the fine-adjustment device, by adjusting the height of the blade while driving, according to the base surface.
  • the fine adjustment can be 10 - 30 %, preferably 15 - 25 % of the total adjustment margin.
  • the total adjustment margin can be 30 - 65 cm, preferably 45 - 55 cm. In that case, the fine adjustment can be preferably 10 cm and the rough adjustment 40 cm.
  • a slot in the front frame for the towing hitch of a truck will permit a truck to be backed against the spreading device.
  • the coupling includes a pivot, to permit a difference of angle between the spreader and the work machine.
  • the spreading device according to the invention in which the thickness of the road-construction mass layer being spread can be adjusted by a rough adjustment and a fine adjustment, faster adjustment properties than those of devices according to the prior art can be achieved, thanks to which the stepless height adjustment of the blade can be used to implement the desired surface shape, irrespective of unevennesses in the base surface, so that the spread mass layer can be made flat and even.
  • the use of the spreading device according to the invention avoids an undulating shape in the finished spread surface, which is very usual when using spreading devices according to the prior art.
  • the two-stage height adjustment of the road-construction mass being spread permits the adjustment of several different variables, such as the size of the throat opening, the width of the surface being spread, and the height of the front frame, without the quality of the work suffering. With the aid of the good adjustment properties, it is also sought to achieve materials savings by means of better control of the mass layer being spread.
  • the structure of the spreading device according to the invention is also relatively light, so that the work machine used can be considerably lighter than the work machines that must be used when using spreading devices according to the prior art.
  • Figures 1a - 8 show one embodiment of the spreading device according to the invention.
  • Figure 1a shows a side view of the spreading device 10 at the rear of a truck 50, when the height of the mass layer being spread is at a maximum.
  • Figure 1b the height of the mass layer being spread is at a minimum
  • Figure 1c the blade adjustment is shown in the maximum position.
  • the spreading device includes a front frame 16 and a rear frame 18, which, when connected to each other, form a feed silo 20 for the road-construction mass to be spread.
  • the road-construction mass will be referred to as the mass.
  • An open opening i.e.
  • the mass flowing from the feed silo 20 is levelled with the aid of a blade 24 attached to the rear frame 18.
  • the blade 24 is fitted vertically to the rear frame 18.
  • Carrier wheels 28, on which the front frame 16 travels along the base surface 80, are articulated under the front frame 16.
  • the term base surface 80 is used to refer to the surface of the ground, on top of which the mass layer 90 is spread.
  • the spreading device 10 is attached to the work machine 14 with the aid of a coupling 30 articulated to the rear frame 18 of the spreading device 10.
  • the coupling 30 is preferably compatible with couplings according to the standard for work machines.
  • the spreading device 10 When using the spreading device 10, the spreading device 10 is first attached to the work machine 14, such as a front loader, in place of its bucket. Using the work machine 14, the spreading device 10 is pushed into contact with the rear wheel 54 of the truck 50 transporting the mass. Both the truck 50 and the work machine 14 with the spreading device 10 start moving and the platform 52 of the truck 50 is tilted, when the mass falls into the feed silo 20 of the spreading device 10. The mass flows from the feed silo 20 through the throat opening 22 to form a mass layer 90 on top of the base surface 80, which the blade 24 attached to the rear frame 18 scrapes to the selected thickness. The work machine 14 travels on top of the spread mass layer 90.
  • the work machine 14 travels on top of the spread mass layer 90.
  • the spreading device can include a buffer beam 42, which is articulated in the centre in front of the front frame 16, so that it permits driving into a curve.
  • Figure 1a also shows the coupling 30, which is articulated to the rear frame 18 with the aid of a pivot 39.
  • the rear frame 18 When raising the guides between the front frame 16 and the rear frame 18 with the aid of the rough adjustment, the rear frame 18 also rises. The rear frame is then temporarily articulated relative to the work machine at the pivot 39.
  • the pivot 39 should be durable, as a great strain is placed upon during the spreading work.
  • the thickness adjustments of the mass layer being spread are preferably made only with the aid of the operating devices of the spreading machine 10.
  • the front frame always travels on the base surface and the rear frame in the same position with the work machine on the spread surface.
  • FIG 2 shows an axonometric view of the spreading device.
  • the spreading device 10 preferably includes a spreading plough 32 articulated inside the throat opening 22 in the lower part of the feed silo 20 of the front frame 16, in order to prevent arching of the mass.
  • the task of the spreading plough 32 articulated to the front frame 16 by means of a pivot shaft 43 ( Figure 6 ) is also to assist the mass to travel to the side from the centre of the throat opening 22, without causing resistance to the movement of the mass.
  • the spreading plough 32 can be articulated to be able to move.
  • the spreading plough 32 can include a carrier wheel 44 to support the spreading plough against the base surface 80. The spreading plough 32 travels along the base surface 80 carried by the carrier wheel 44.
  • the carrier wheel 44 can be seen more clearly in Figure 4 .
  • the spreading plough 32 rises and falls in accordance with the unevennesses. This causes a pumping action in the spreading plough 32, which prevents the mass from becoming packed, i.e. arching in the feed silo 20.
  • the shaping of the feed silo 20, and the spreading plough 32 seek to reduce the separating of the crushed stone, which can occur in the spreading device 10. Separation will result in the rougher material trying to roll over the surface and collect and form a barrier to the throat opening. Separation is also detrimental to the quality of the work.
  • the front frame 16 is connected to the rear frame 18 with the aid of guides 29.
  • at least one horizontally placed throat operating device 34 is inserted between the front frame 16 and the rear frame 18, in order to adjust the throat opening 22 by moving the front frame 16 horizontally relative to the rear frame 18.
  • the throat operating device 34 is attached at one end to the guide 29 attached to the rear frame 18 and at the other end to the front frame 16.
  • the guides 29 can be seen more clearly in Figure 4 .
  • the horizontal adjustment margin can be a total of about 50 cm.
  • the amount of mass being fed should be larger, in order to achieve the desired layer thickness.
  • the distance between the front frame and the rear frame can be kept greater, so that the mass will become thicker and it will be more sufficient for the sides of the spreading device.
  • Figure 4 also shows the adjustable side plates 36 belonging to the spreading device, attached to the rear frame 18 at the sides of the blade 24 for limiting the lateral spreading of the mass to the selected width.
  • the side plates 36 are attached to extension plates 41, which can act at the same time as extensions of the blade 24, according to Figure 2 .
  • the adjustment of the side plates 36 takes place with the aid of a widening operating device 47 ( Figure 3 ).
  • the side plates 36 include skirt plates 37, which run on the base surface 80 and keep the edge of the mass under control.
  • the adjustable side plates are also useful in transportation, when lifting the spreading device, and when starting moving.
  • the side plates 36 are preferably about 100 cm wider than the front and rear frames when spreading the mass, but in the transport position are closed in the rear frame 18, when the extension plates 41 ( Figure 2 ) of the side plates 36 are folded behind the blade 24.
  • the front frame 16 of the spreading device preferably includes at least one rough-adjustment operating device 38, for adjusting the height of the front frame 16, according to Figure 4 .
  • the thickness of the mass layer 90 spread by the spreading device 10 is regulated by adjusting the height of the blade 24, preferably in two parts.
  • Rough adjustment is performed by adjusting the height of the front frame 16 with the aid of the rough-adjustment operating device 38, when the rear frame 18 connected to the front frame 16 will rise by the same amount.
  • the front frame 16, the carrier wheel 28, and the spreading plough 32 with its carrier wheel 44 form the front part, in relation to which the other parts of the spreading device, including the rear frame 18 move upwards.
  • the carrier wheels 28 and the carrier wheel 44 of the spreading plough 32 travel on the base surface 80.
  • the fine adjustment of the blade 24 is performed with the aid of the rear frame 18 and the blade 24, which can be adjusted using the fine-adjustment operating device 40 located in the rear frame 18.
  • the blade 24 can be adjusted by 10 cm with the aid of the fine adjustment, and the height of the rear frame by 40 cm with the aid of the rough adjustment of the front frame.
  • the total adjustment margin then becomes 50 cm.
  • Figure 1c shows precisely the situation, in which the rear frame 18 is at its maximum height and the blade 24 is adjusted downwards to the maximum extent.
  • the thickness of the mass layer can be at a minimum 1 cm and at a maximum 40 cm.
  • 50 cm is the limit of the layer thickness, which can, within approved limits, be spread at one time in connection with normal road building.
  • the minimum and maximum values can vary according to different embodiments of the spreading device.
  • the fine-adjustment operating device 40 By means of the fine-adjustment operating device 40, the height and tilt of the blade 24 can be adjusted.
  • the blade 24, attached to the end wall 21, moves vertically in slots 23, according to Figure 3 .
  • the fine-adjustment operating device can include, for example, two hydraulic cylinders.
  • the tilt of the blade can be adjusted by about 5°.
  • the extensive adjustment margin permits comprehensive working properties for the spreading device, making it suitable for use in many different work situations.
  • the rough and fine adjustments form a combination of the adjustment of the height of the blade of the spreading device, which permits the precise and rapid stepless adjustment of the height of the blade continuously during mass spreading according to the shapes of the base surface, so that the end result is an even surface.
  • the rough adjustment can be used to set the desired thickness of the mass layer being spread and the fine adjustment can be used while driving to ensure that the final surface will be even, despite unevennesses in the base surface.
  • a simultaneous use of the rough adjustment and fine adjustment of the front frame can also be used while driving to adjust the layer thickness, particularly in the case of large changes.
  • the rough adjustment can be used within some specific tolerance, for example, a tolerance of 5 cm.
  • the fine adjustment is 10 - 30 %, preferably 15 - 25 % of the total adjustment margin.
  • the total adjustment margin is 30 - 65 cm, preferably 45 - 55 cm.
  • the control of the rough adjustment and fine adjustment is combined in such a way that the frame of the spreading device will remain nearly straight in all circumstances.
  • the term operating device intended for adjusting height refers, in this connection, to the fine-adjustment operating device 40 and the rough-adjustment operating device 38.
  • Figures 5a - 5c show the front frame 16 and the rear frame 18 attached to each other.
  • the front frame 16 In the front frame 16, there is a groove 46 in the centre, which permits a truck to be backed against the spreading device, without the truck's towing hitch coming in contact with the front frame 16 of the spreading device ( Figure 3 ).
  • the dimensions of the spreading device can vary according to where it is used.
  • the width of the front and rear frame of one embodiment is 3,2 m, the height about 1,2 m, the overall length of the spreading device with the throat opening in the minimum position 3,7 m, and the length of the throat opening at its minimum about 0,95 m.
  • Figure 6 shows the spreading plough 32 of the spreading device.
  • the spreading plough 32 can have a triangular shape, so that it will spread the mass effectively.
  • the spreading plough 32 is articulated to the front frame with the aid of a pivot shaft 43.
  • FIG 8 shows the blade 24 in greater detail.
  • the blade 24 there can be a blade strip 27, which can be changed when it wears.
  • the blade strip 27 can be part of the blade 24.
  • the thickness of the blade can be about 1 - 3 cm and it forms a wall delimiting the rear frame of the feed silo.
  • the blade 24 is installed in a vertical attitude, so that the surface area of the blade 24 against the mass, when lowered, is considerably smaller than that of the blade of the prior art installed in a horizontal attitude.
  • the resistance resisting the adjustment of the blade 24 is also considerably smaller, so that the height adjustment of the blade can be performed quickly and precisely.
  • the blade 24 is attached to the rear frame 18 with the aid of the fine-adjustment operating device and the fine-adjustment operating device is, in turn, attached to the frame beams of the rear frame, which can be seen in Figures 1 - 3 .
  • the adjustment operations of the spreading device are controlled using generally known technologies, for example, GPS, lasers, or tacheometry, so that the adjustment of the blade height takes place automatically according to the planned shapes.
  • the adjustments can also be performed manually.
  • the operating devices are preferably hydraulic cylinders, but they can also be other operating devices suitable for the purpose.
  • For adjusting the layer thickness it is also possible to install, for example, a rod potentiometer, or ultrasound or laser devices, or some similar device, in which case the height adjustment of the layer thickness or surface will take place automatically using the work machine's own hydraulics.
  • the work machine can be any work machine with a hoist suitable for the purpose. Pushing the device also has the advantage that the truck need not drive on top of the mass layer being spread. With the aid of alterations, the spreading device can also be manufactured to be pulled.
  • a compacting roller wheel which will pre-compact the spread mass, can also be installed in the spreading device after the rear frame.
  • the spreading device can be used primarily for the spreading of a road-construction mass, such as gravel or crushed stone, but it can also be used in other corresponding applications.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Road Repair (AREA)
EP11162271.8A 2010-04-14 2011-04-13 Dispositif d'épandage pour substance de masse de construction de routes Withdrawn EP2377993A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20105385A FI122903B (fi) 2010-04-14 2010-04-14 Tienrakennusmassan levityslaite

Publications (2)

Publication Number Publication Date
EP2377993A2 true EP2377993A2 (fr) 2011-10-19
EP2377993A3 EP2377993A3 (fr) 2014-05-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11162271.8A Withdrawn EP2377993A3 (fr) 2010-04-14 2011-04-13 Dispositif d'épandage pour substance de masse de construction de routes

Country Status (2)

Country Link
EP (1) EP2377993A3 (fr)
FI (2) FI122903B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113622266A (zh) * 2021-09-08 2021-11-09 中铁十九局集团第三工程有限公司 一种道路工程用路面沥青施工装置及施工方法
CN114808715A (zh) * 2022-04-25 2022-07-29 阜阳市科信交通工程试验检测有限公司 一种桥梁施工用智能化摊铺设备
CN116289424A (zh) * 2023-03-22 2023-06-23 中交第二公路工程局有限公司 一种摊铺厚度均匀的泥结卵石摊铺设备及施工工艺
WO2023175240A1 (fr) * 2022-03-15 2023-09-21 Reptail Oy Dispositif de construction de route et procédé de modification d'un dispositif de construction de route
CN117306617A (zh) * 2023-11-28 2023-12-29 四川鼎鸿智电装备科技有限公司 一种对工程机械工作装置进行定位的装置及其定位方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI126262B (fi) 2015-05-27 2016-09-15 Ept Kone Ja Laite Oy Tienrakennusmassan levityslaite
CN118422547A (zh) * 2023-05-08 2024-08-02 郁文华 一种路基碎石铺设装置及其铺设方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI92944B (fi) 1992-03-13 1994-10-14 Esa Maentynen Tienrakennusmassan levityslaite

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2962947A (en) * 1959-01-09 1960-12-06 Ulrich Mfg Co Road base spreading apparatus
US3091999A (en) * 1960-01-07 1963-06-04 Ulmac Equipment Company Base spreader

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI92944B (fi) 1992-03-13 1994-10-14 Esa Maentynen Tienrakennusmassan levityslaite

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113622266A (zh) * 2021-09-08 2021-11-09 中铁十九局集团第三工程有限公司 一种道路工程用路面沥青施工装置及施工方法
WO2023175240A1 (fr) * 2022-03-15 2023-09-21 Reptail Oy Dispositif de construction de route et procédé de modification d'un dispositif de construction de route
CN114808715A (zh) * 2022-04-25 2022-07-29 阜阳市科信交通工程试验检测有限公司 一种桥梁施工用智能化摊铺设备
CN114808715B (zh) * 2022-04-25 2023-08-29 阜阳市科信交通工程试验检测有限公司 一种桥梁施工用智能化摊铺设备
CN116289424A (zh) * 2023-03-22 2023-06-23 中交第二公路工程局有限公司 一种摊铺厚度均匀的泥结卵石摊铺设备及施工工艺
CN117306617A (zh) * 2023-11-28 2023-12-29 四川鼎鸿智电装备科技有限公司 一种对工程机械工作装置进行定位的装置及其定位方法
CN117306617B (zh) * 2023-11-28 2024-03-12 四川鼎鸿智电装备科技有限公司 一种对工程机械工作装置进行定位的装置及其定位方法

Also Published As

Publication number Publication date
EP2377993A3 (fr) 2014-05-14
FI20105385A0 (fi) 2010-04-14
FI122903B (fi) 2012-08-31
FI20105385L (fi) 2011-10-15
FI11662U1 (fi) 2017-05-18

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