Ballast cleaning tilting cart for narrow hole

Abstract

The invention relates to the field of material transfer, in particular to a narrow hole ballast cleaning tilting cart. The device comprises an engineering chassis, a cab and a tipping bucket mechanism, the cab is arranged on the engineering chassis; the tipping bucket mechanism comprises a bucket and two tipping bucket assemblies symmetrically distributed relative to the bucket, and each tipping bucket assembly comprises a first section arm, a second section arm and a third section arm which are rotationally connected in sequence, and a first hydraulic motor, a second hydraulic motor and a third hydraulic motor which are used for correspondingly driving the first section arm, the second section arm and the third section arm to rotate correspondingly. The bottom end of the first section arm is rotationally arranged on the engineering chassis, a fourth hydraulic motor used for driving the bucket to rotate is arranged at the outer end of the third section arm, and when the bucket transfers materials, the materials on the front side of the engineering chassis are scooped up, turned over from the upper portion of the cab and unloaded to the rear side of the engineering chassis. The material collecting amount is large, continuous operation can be achieved, turning around is not needed during material transferring, time and cost are saved, the transferring efficiency is improved, the passing ability is high, and the escape success rate is increased.

Description

Technical Field

[0001] The invention relates to the field of material transfer, in particular to a narrow-hole ballast-removing dump truck. Background Art

[0002] In the construction of narrow and short tunnels such as inclined shafts, horizontal tunnels, and parallel pilot tunnels, blasting produces stones. Due to the small cross-sectional size, conventional large-scale tunnel construction equipment is difficult to effectively operate in it, and can only rely on small excavation machinery or manual assistance, which in turn reduces excavation efficiency. For narrow transportation channels, traditional large-scale transportation vehicles cannot pass through, and only small transportation tools, such as small mine cars, can be used to transport materials. However, transporting materials through small transportation tools has the following shortcomings:

[0003] 1. Small transport vehicles have limited load capacity, usually only 20%-30% of large transport vehicles, and require frequent round trips, which increases transportation time and costs;

[0004] 2. Workers have difficulty in moving during construction in a narrow space, which results in extended working time and affects work efficiency;

[0005] 3. High safety risk. Due to the small space, once an accident occurs, it is difficult for construction workers to escape and be rescued. For example, in the event of collapse, fire and other accidents, construction workers may not be able to evacuate the scene quickly, and rescue workers may find it difficult to enter quickly for rescue, which poses a serious threat to the life safety of construction workers. Summary of the invention

[0006] The purpose of the present invention is to address the problems existing in the background technology and to propose a narrow-hole ballast-clearing dump truck, which has a large material collection capacity, can operate continuously, and does not need to turn around when transporting materials, thus saving time and cost, improving transportation efficiency, having strong passability, and improving the success rate of escape.

[0007] The technical solution of the present invention is a narrow hole ballast cleaning dump truck, which includes an engineering chassis, a cab, and a dump mechanism; the cab is arranged on the engineering chassis; the dump mechanism includes a bucket and two groups of dump assemblies symmetrically distributed about the bucket, the dump assembly includes a first section arm, a second section arm and a third section arm that are rotatably connected in sequence, and a first hydraulic motor, a second hydraulic motor and a third hydraulic motor respectively used to drive the first section arm, the second section arm and the third section arm to rotate, the bottom end of the first section arm is rotatably arranged on the engineering chassis, and the outer end of the third section arm is provided with a fourth hydraulic motor for driving the bucket to rotate. When the bucket transfers materials, the material on the front side of the engineering chassis is shoveled up, turned over from above the cab, and unloaded to the rear side of the engineering chassis.

[0008] Preferably, the first and second boom sections are telescopic arms, both comprising a hydraulic cylinder and multiple telescopic cylinders that are sequentially sleeved and slidably connected, the hydraulic cylinder being disposed in a primary telescopic cylinder and the telescopic end being connected to a final telescopic cylinder.

[0009] Preferably, a first diagonal support cylinder is rotatably provided on the primary telescopic cylinder of the first boom section, a sliding block is rotatably connected to the telescopic end of the first diagonal support cylinder, and a slide rail for sliding the sliding block is provided on the engineering chassis.

[0010] Preferably, one end of the slide rail has an anti-slip limit portion, and the engineering chassis is provided with a support frame located on one side of the other end of the slide rail.

[0011] Preferably, a second diagonal support cylinder is rotatably arranged on the primary telescopic cylinder of the first section arm, the movable end of the second diagonal support cylinder has a thrust ball, an auxiliary cylinder is rotatably connected between the primary telescopic cylinder of the first section arm and the second diagonal support cylinder, a positioning block is arranged on the primary telescopic cylinder of the second section arm, and the positioning block has a positioning groove for the thrust ball to extend into.

[0012] Preferably, multiple groups of force-adding components are arranged side by side at the front end of the engineering chassis, and the force-adding components include a fixed frame and a connecting frame arranged on the engineering chassis, a swing frame rotatably arranged on the fixed frame, a push head arranged at the front end of the swing frame, and a force-adding cylinder whose two ends are respectively connected to the connecting frame and the swing frame for rotation. A thrust block corresponding to the force-adding components is arranged at the bottom of the bucket, and the thrust block has a thrust groove for the push head to be pressed into.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] The present invention has a large material collection capacity and can operate continuously. It does not need to turn around when transferring materials, which saves time and cost and improves the transfer efficiency. It adopts a crawler engineering chassis with strong passability, which improves the success rate of escape. The bucket can be used to transfer the materials on the front side of the dump truck to the rear side, and the bucket can tip the materials into the bucket of the rear transport vehicle. The dump truck itself does not need to turn around when transferring materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0016] Figure 2 It is a schematic diagram of a local structure of an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of driving the pusher head to move according to an embodiment of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of transferring materials in a tunnel to a transport vehicle according to an embodiment of the present invention.

[0019] Figure numerals: 1. engineering chassis; 2. cab; 3. first arm section; 4. first hydraulic motor; 5. second arm section; 6. second hydraulic motor; 7. third arm section; 8. third hydraulic motor; 9. bucket; 10. fourth hydraulic motor; 11. first diagonal support cylinder; 12. second diagonal support cylinder; 13. auxiliary cylinder; 14. slider; 15. slide rail; 16. support frame; 17. positioning block; 171. positioning groove; 18. fixed frame; 19. connecting frame; 20. booster cylinder; 21. swing frame; 22. push head; 23. push block; 231. push groove. DETAILED DESCRIPTION

[0020] Embodiment 1

[0021] like Figure 1-Figure 4 As shown, the narrow-hole ballast-clearing dump truck proposed in this embodiment includes an engineering chassis 1, a cab 2, and a dump mechanism.

[0022] The cab 2 is arranged on the engineering chassis 1. The top of the engineering chassis 1 is provided with a power device. The driver controls the movement of the engineering chassis 1 by controlling the power device in the cab 2, and controls the action of the dump mechanism to shovel, transport and unload materials. The interior space of the cab 2 is large enough for the driver to move. The engineering chassis 1 is selected from but not limited to a crawler chassis or a wheeled chassis.

[0023] The bucket mechanism includes a bucket 9 and two bucket assemblies symmetrically distributed about the bucket 9. The bucket assembly includes a first arm 3, a second arm 5 and a third arm 7 which are connected in rotation in sequence, and a first hydraulic motor 4, a second hydraulic motor 6 and a third hydraulic motor 8 which are respectively used to drive the first arm 3, the second arm 5 and the third arm 7 to rotate. The bottom end of the first arm 3 is rotatably arranged on the engineering chassis 1, and the outer end of the third arm 7 is provided with a fourth hydraulic motor 10 which is used to drive the bucket 9 to rotate. The first hydraulic motor 4, the second hydraulic motor 6 and the third hydraulic motor 8 can respectively adjust the rotational orientation of the first arm 3, the second arm 5 and the third arm 7, so as to control the distance between the two ends of the three arms as a whole, and prevent the bucket 9 from hitting the top of the tunnel when transferring materials. When the bucket 9 transfers materials, it scoops up the materials on the front side of the engineering chassis 1, turns over from above the cab 2, and unloads the materials to the rear side of the engineering chassis 1. The materials can be rock piles in the tunnel, or other materials in the tunnel that need to be scooped up and transferred out.

[0024] The material collection capacity of this embodiment is large, and it can work continuously. There is no need to turn around when transporting materials, which saves time and cost, improves the transportation efficiency, adopts a crawler engineering chassis, has strong passability, improves the success rate of escape, has high loading efficiency, and has low transportation cost of ballast discharge, which meets the environmental requirements of high temperature, high dust and high humidity in tunnel construction. When using this dump truck to transport materials, the dump truck is driven forward, the bucket 9 is cut into the material pile, and the materials are shoveled into the bucket 9. The fourth hydraulic motor 10 drives the bucket 9 to rotate, and the bucket 9 scoops up the materials. The first hydraulic motor 4, the second hydraulic motor 6 and the third hydraulic motor 8 can respectively drive the first section arm 3, the second section arm 5 and the third section arm 7 to rotate, and the bucket 9 is adjusted from the front side of the dump truck to the rear side. In this process, the fourth hydraulic motor 10 drives the bucket 9 to rotate, keeps the bucket 9 in a horizontal state, and prevents the materials from scattering from the bucket 9. When unloading, the fourth hydraulic motor 10 drives the bucket 9 to rotate, and the bucket 9 overturns the materials into the bucket of the rear transport vehicle.

[0025] Embodiment 2

[0026] like Figure 1-Figure 4 As shown, the narrow hole ballast clearing dump truck proposed in this embodiment is compared with the first embodiment. In this embodiment, the first section arm 3 and the second section arm 5 are both telescopic arms, both of which include a hydraulic cylinder and a multi-stage telescopic cylinder that is sequentially sleeved and slidably connected. The hydraulic cylinder is arranged in the primary telescopic cylinder and the telescopic end is connected to the final telescopic cylinder. The telescopic arms in this embodiment are all three-stage telescopic arms, that is, they have three telescopic cylinders that are sequentially sleeved and slidably connected. In addition, telescopic arms of other orders of magnitude can also be used. The hydraulic cylinder drives the final telescopic cylinder to move to achieve the adjustment of the length of the entire telescopic arm, thereby expanding the material shoveling operation range of the dump truck.

[0027] like Figure 1 and Figure 2 As shown, a first diagonal support cylinder 11 is rotatably provided on the primary telescopic cylinder of the first boom 3, a slider 14 is rotatably connected to the telescopic end of the first diagonal support cylinder 11, and a slide rail 15 for the slider 14 to slide is provided on the engineering chassis 1. When the first boom 3 is extended or retracted, the first diagonal support cylinder 11 drives the slider 14 to slide on the slide rail 15, and the slider 14 is supported by the first diagonal support cylinder 11 to ensure the stability of the material during transportation.

[0028] like Figure 1As shown, one end of the slide rail 15 has an anti-drop limiter to prevent the slider 14 from falling off from the end of the slide rail 15 close to the first hydraulic motor 4, and can be used to limit the end position of the slider 14 sliding. When the slider 14 slides to abut against the anti-drop limiter, the first diagonal support cylinder 11 can provide a pulling force to the first section arm 3 to ensure the material carrying and transporting performance of the entire bucket mechanism. A support frame 16 is provided on the engineering chassis 1 at one side of the other end of the slide rail 15. The support frame 16 limits the sliding range of the slider 14 at the other end of the slide rail 15 and prevents the slider 14 from falling off from the other end of the slide rail 15. In addition, when shoveling materials through the bucket 9, the first section arm 3 is laid forward and placed on the support frame 16, and supported by the support frame 16.

[0029] like Figure 1 and Figure 2 As shown, the primary telescopic cylinder of the first section arm 3 is rotatably provided with a second diagonal support cylinder 12, and the moving end of the second diagonal support cylinder 12 has a thrust ball. The primary telescopic cylinder of the first section arm 3 and the second diagonal support cylinder 12 are rotatably connected with an auxiliary cylinder 13. The primary telescopic cylinder of the second section arm 5 is provided with a positioning block 17, and the positioning block 17 has a positioning groove 171 for the thrust ball to extend into. When the second section arm 5 rotates to the rear position of the dump truck, the position of the second diagonal support cylinder 12 is adjusted by the auxiliary cylinder 13, and the moving end of the second diagonal support cylinder 12 drives the thrust ball to extend forward, and the thrust ball abuts in the positioning groove 171, providing support force to the positioning block 17, thereby providing support force to the second section arm 5, the third section arm 7 and the bucket 9. Before unloading, the lengths of the first arm 3 and the second arm 5 can be adjusted successively so that the bucket 9 is located at a suitable height and position, and the materials can be dumped into the bucket of the transport vehicle at the rear lower side when flipping. The lengths of the first arm 3 and the second arm 5 can be adjusted according to the buckets of different heights, which is flexible to use.

[0030] Embodiment 3

[0031] like Figure 1-Figure 4 As shown, the narrow hole ballast removal dump truck proposed in this embodiment is compared with the first and second embodiments. In this embodiment, a plurality of force-adding components are arranged side by side at the front end of the engineering chassis 1. The force-adding components include a fixed frame 18 and a connecting frame 19 arranged on the engineering chassis 1, a swing frame 21 rotatably arranged on the fixed frame 18, a push head 22 arranged at the front end of the swing frame 21, and a force-adding oil cylinder 20 rotatably connected to the connecting frame 19 and the swing frame 21 at both ends. The push head 22 is a spherical structure. A push block 23 corresponding to the force-adding component is arranged at the bottom of the bucket 9. The push block 23 has a push groove 231 for the push head 22 to push into. The push groove 231 is a hemispherical groove, or slightly smaller than the hemispherical groove, so that the push head 22 can push into the push groove 231 and can also be separated from the push groove 231.

[0032] In this embodiment, before the bucket 9 cuts into the material pile, the bucket 9 is adjusted to a position where the push head 22 abuts against the push groove 231. The dump truck moves forward, the bucket 9 cuts into the material pile, and the push head 22 provides support. After the bucket 9 finishes digging, the swing frame 21 is driven by the booster cylinder 20 to rotate obliquely upward, and the swing frame 21 drives the push head 22 to move obliquely upward. The push head 22 pushes the bucket 9 by pushing the push block 23, providing assistance for the bucket 9 to leave the material pile.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Narrow tunnel ballast dump truck, characterized in that: include: Engineering chassis (1); A cab (2) arranged on the engineering chassis (1); A tipping mechanism comprises a bucket (9) and two groups of tipping assemblies symmetrically distributed about the bucket (9), wherein the tipping assemblies comprise a first arm section (3), a second arm section (5) and a third arm section (7) which are rotatably connected in sequence, and a first hydraulic motor (4), a second hydraulic motor (6) and a third hydraulic motor (8) which are respectively used to drive the first arm section (3), the second arm section (5) and the third arm section (7) to rotate, wherein the bottom end of the first arm section (3) is rotatably arranged on an engineering chassis (1), and a fourth hydraulic motor (10) which is used to drive the bucket (9) to rotate is arranged at the outer end of the third arm section (7), and when the bucket (9) transfers materials, the materials on the front side of the engineering chassis (1) are scooped up and turned over from above a cab (2) to discharge the materials to the rear side of the engineering chassis (1).

2. The narrow hole ballast dumper according to claim 1, characterized in that: The first boom section (3) and the second boom section (5) are both telescopic booms, and both include a hydraulic cylinder and a plurality of telescopic cylinders which are sequentially sleeved and slidably connected. The hydraulic cylinder is arranged in a primary telescopic cylinder and the telescopic end is connected to a final telescopic cylinder.

3. The narrow hole ballast dumper according to claim 2, characterized in that: A first diagonal support cylinder (11) is rotatably arranged on the primary telescopic cylinder of the first boom (3); a sliding block (14) is rotatably connected to the telescopic end of the first diagonal support cylinder (11); and a sliding rail (15) for the sliding block (14) to slide is arranged on the engineering chassis (1).

4. The narrow hole ballast dumper according to claim 3, characterized in that: One end of the slide rail (15) is provided with an anti-drop limit portion, and a support frame (16) located on one side of the other end of the slide rail (15) is arranged on the engineering chassis (1).

5. The narrow hole ballast dumper according to claim 3, characterized in that: A second diagonal support cylinder (12) is rotatably arranged on the primary telescopic cylinder of the first boom (3), the movable end of the second diagonal support cylinder (12) has a thrust ball, an auxiliary cylinder (13) is rotatably connected between the primary telescopic cylinder of the first boom (3) and the second diagonal support cylinder (12), a positioning block (17) is arranged on the primary telescopic cylinder of the second boom (5), and the positioning block (17) has a positioning groove (171) for the thrust ball to extend into.

6. The narrow hole ballast dumper according to claim 1, characterized in that: A plurality of groups of force-adding components are arranged side by side at the front end of the engineering chassis (1), and the force-adding components include a fixed frame (18) and a connecting frame (19) arranged on the engineering chassis (1), a swing frame (21) rotatably arranged on the fixed frame (18), a push head (22) arranged at the front end of the swing frame (21), and a force-adding oil cylinder (20) with two ends respectively connected to the connecting frame (19) and the swing frame (21) for rotation. A push block (23) corresponding to the force-adding components is arranged at the bottom of the bucket (9), and the push block (23) has a push groove (231) for the push head (22) to push into.

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