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 conveyor and a material turning mechanism, a power device and a cab are arranged at the top of the engineering chassis; the conveyor is arranged on the engineering chassis and located above the cab, and the conveying terminal end is located above the rear side of the engineering chassis. The material overturning mechanism comprises a bucket and an overturning mechanism used for driving the bucket to rotate so as to overturn materials in the bucket to the conveyor. The vehicle is large in loading capacity, high in transfer efficiency, high in speed, free of turning around and convenient to evacuate and escape.

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. The safety risk is high. Due to the small space, it is difficult for construction workers to escape once an accident occurs. 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-removing dump truck which has a large loading capacity, high transfer efficiency, high speed, no need to turn around and convenient evacuation.

[0007] The technical solution of the present invention is a narrow hole ballast cleaning dump truck, which includes an engineering chassis, a conveyor and a dumping mechanism; a power unit and a cab are provided on the top of the engineering chassis; the conveyor is arranged on the engineering chassis, above the cab, and the conveying terminal is located above the rear side of the engineering chassis; the dumping mechanism includes a bucket, and a tipping mechanism for driving the bucket to rotate so as to tip the material in the bucket onto the conveyor.

[0008] Preferably, the conveyor includes a support frame arranged on the engineering chassis and a chain conveyor arranged on the support frame, the chain conveyor includes an inclined conveying section and a horizontal conveying section that are connected, the inclined conveying section gradually tilts downward in a direction away from the horizontal conveying section, and the inclined conveying section is located on one side of the flipping mechanism.

[0009] Preferably, both sides of the chain conveyor in the width direction are provided with material blocking plates.

[0010] Preferably, the overturning mechanism includes a turntable rotatably arranged on the engineering chassis, a rotation driving device arranged on the engineering chassis and driving the turntable to rotate, and a overturning assembly connected between the turntable and the bucket.

[0011] Preferably, the flipping assembly includes a telescopic arm whose two ends are respectively connected to the turntable and the bucket for rotation, a lifting cylinder whose two ends are respectively connected to the turntable and the telescopic arm for rotation, a hydraulic motor arranged on the bucket and driving the bucket to rotate around the telescopic arm, and a pushing assembly arranged on the telescopic arm and used to push the bucket to rotate.

[0012] Preferably, the telescopic arm includes a mounting tube, a movable arm, and a cylinder arranged in the mounting tube and with the movable end connected to the movable arm. The movable arm includes a sliding arm section and a side arm section that are integrally connected. The sliding arm section is slidably arranged on the mounting tube. The mounting tube is rotatably arranged on a turntable, and the end of the lifting cylinder is rotatably connected to the mounting tube.

[0013] Preferably, the pushing assembly includes a booster push cylinder and an auxiliary cylinder which are rotatably arranged at two locations on the side arm section of the moving arm respectively. One end of the auxiliary cylinder away from the side arm section of the moving arm is rotatably connected to the cylinder barrel of the booster push cylinder, and the moving end of the booster push cylinder faces the bucket.

[0014] Preferably, the outer bottom of the bucket has a push platform, and the moving end of the booster oil cylinder faces the push platform.

[0015] Preferably, the push platform has a spherical crown groove, the moving end of the force-adding push oil cylinder is a ball-pushing part, and the ball-pushing part is a spherical structure that matches the spherical crown groove.

[0016] Preferably, the inner side of the bucket has two symmetrically distributed material guide plate parts, and a bucket-shaped channel is formed between the two material guide plate parts.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] The invention has a large loading capacity, low ballast transportation cost, no need to turn around, high transfer efficiency, fast speed, and the engineering chassis uses a crawler chassis, which has the advantage of strong passability and convenient evacuation and escape. The dump truck can meet the high temperature, high dust, and high humidity environment requirements of tunnel construction. Only one person is required to operate in the cab, and the labor cost is low. Through the continuous operation of the dumping mechanism, the material at the material pile is shoveled out and poured onto the conveyor, and then the material is transported to the bucket of the transport vehicle that receives the material below the terminal end through the conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention from a front side perspective;

[0020] Figure 2 It is a schematic diagram of the structure of an embodiment of the present invention from a rear side perspective;

[0021] Figure 3 It is a structural front view of an embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of conveying materials to a transport vehicle according to an embodiment of the present invention.

[0023] Figure numerals: 1. Engineering chassis; 2. Cab; 3. Turntable; 4. Telescopic arm; 5. Bucket; 51. Material guide plate part; 52. Push platform part; 6. Lifting cylinder; 7. Push cylinder; 71. Push ball part; 8. Auxiliary cylinder; 9. Support frame; 10. Chain conveyor. DETAILED DESCRIPTION

[0024] Embodiment 1

[0025] like Figure 1-Figure 4 As shown, a narrow hole ballast cleaning dump truck proposed in this embodiment includes an engineering chassis 1, a conveyor and a dumping mechanism.

[0026] The top of the engineering chassis 1 is provided with a power device and a cab 2. The power device provides power for the engineering chassis 1. The driver controls the power device in the cab 2 to realize the movement of the engineering chassis 1 and the movement of the material turning mechanism. The cab 2 provides sufficient operating space for the driver. The engineering chassis 1 is selected from but not limited to a crawler chassis or a wheeled chassis.

[0027] The conveyor is arranged on the engineering chassis 1, above the cab 2, and the conveying terminal is located above the rear side of the engineering chassis 1, so that the transport vehicle can travel to the position where the bucket is located below the terminal to effectively receive the materials flipped by the tipping mechanism. The conveyor includes a support frame 9 arranged on the engineering chassis 1 and a chain plate conveyor 10 arranged on the support frame 9. Both sides of the chain plate conveyor 10 in the width direction are provided with material blocking plates to prevent the materials from being scattered from both sides during the material transportation process. The chain plate conveyor 10 includes an inclined conveying section and a horizontal conveying section with a connection. The inclined conveying section gradually tilts downward in a direction away from the horizontal conveying section. The inclined conveying section is located on one side of the tipping mechanism, so the tipping mechanism can first tip the materials onto the inclined conveying section, and the materials are transported from the inclined conveying section to the horizontal conveying section. The action distance of the tipping mechanism is short and the time consumption is short. The materials are transported to a high place through the inclined conveying section, so that the materials finally fall into the bucket of the transport vehicle through the terminal end of the horizontal conveying section.

[0028] The material tipping mechanism includes a bucket 5 and a tipping mechanism for driving the bucket 5 to rotate so as to tip the material in the bucket 5 onto the conveyor. When the bucket 5 is shoveling material, the engineering chassis 1 moves forward, cuts the bucket 5 into the material pile, then shovels the material and lifts it upward, and then tips the material onto the chain conveyor 10, and the material is transported to the rear through the chain conveyor 10. The inner side of the bucket 5 has two symmetrically distributed material guide plate portions 51, and a bucket-shaped channel is formed between the two material guide plate portions 51. One end of the inner side of the bucket-shaped channel is flared, which can effectively guide the material. When the bucket 5 is shoveling material, the material is shoveled through the side opposite to the material guide plate portion 51. When the bucket 5 tips the material onto the conveyor, it will gradually gather and slide through the bucket-shaped channel, and the material is more likely to be tipped onto the conveyor and is not easy to splash to other locations. The turning mechanism includes a turntable 3 rotatably arranged on the engineering chassis 1, a turntable driving device arranged on the engineering chassis 1 and driving the turntable 3 to rotate, and a turning assembly connected between the turntable 3 and the bucket 5. The turntable driving device can adopt a structure such as a hydraulic motor that can drive the turntable 3 to rotate, thereby adjusting the orientation of the bucket 5, which is suitable for shoveling and handling material piles in different orientations and improving the working range.

[0029] This embodiment has a large loading capacity, low ballast transportation cost, high transfer efficiency, fast speed, and convenient evacuation and escape. It can meet the high temperature, high dust, and high humidity environment requirements of tunnel construction. Only one person is required to operate in the cab 2, and the labor cost is low. Through the continuous operation of the tipping mechanism, the material at the material pile is shoveled out and poured onto the conveyor, and then the material is transported to the bucket of the transport vehicle that receives the material below the terminal end through the conveyor. This dump truck does not need to turn around, saving time. The engineering chassis 1 uses a crawler chassis, which has the advantage of strong passability and effectively improves the success rate of escape.

[0030] Embodiment 2

[0031] like Figure 1-Figure 4 As shown, a narrow hole ballast cleaning dump truck proposed in this embodiment, compared with the first embodiment, in this embodiment, the flip assembly includes a telescopic arm 4 whose two ends are respectively connected to the turntable 3 and the bucket 5 for rotation, a lifting cylinder 6 whose two ends are respectively connected to the turntable 3 and the telescopic arm 4 for rotation, a hydraulic motor arranged on the bucket 5 and driving the bucket 5 to rotate around the telescopic arm 4, and a pushing assembly arranged on the telescopic arm 4 and used to push the bucket 5 to rotate. When the lifting cylinder 6 contracts, it can drive the telescopic arm 4 to rotate downward, so that the bucket 5 moves downward to the material pile. After the engineering chassis 1 moves forward and cuts the bucket 5 into the material pile, the bucket 5 is pushed to rotate upward by the pushing assembly to move the bucket 5 out of the material pile. Then, the lifting cylinder 6 extends, drives the telescopic arm 4 to rotate upward, and lifts the bucket 5 to a higher height. Then, the bucket 5 is driven to rotate by the hydraulic motor, and the material in the bucket 5 is flipped onto the chain conveyor 10.

[0032] like Figure 2and Figure 3 As shown, the telescopic arm 4 includes a mounting cylinder, a moving arm, and an oil cylinder arranged in the mounting cylinder and connected to the moving arm at the moving end. The oil cylinder drives the moving arm to move by telescoping to adjust the length of the telescopic arm 4. The moving arm includes a sliding arm section and a side arm section connected in one piece. The sliding arm section is slidably arranged on the mounting cylinder, and the mounting cylinder is rotatably arranged on the turntable 3. The end of the lifting oil cylinder 6 is rotatably connected to the mounting cylinder. The lifting oil cylinder 6 adjusts the orientation of the mounting cylinder by telescoping, thereby adjusting the orientation of the telescopic arm 4.

[0033] like Figure 3 As shown, the pushing assembly includes a boosting push cylinder 7 and an auxiliary cylinder 8 which are rotatably arranged at two locations on the side arm section of the moving arm, respectively. One end of the auxiliary cylinder 8 away from the side arm section of the moving arm is rotatably connected to the cylinder barrel of the boosting push cylinder 7, and the moving end of the boosting push cylinder 7 faces the bucket 5. The position of the boosting push cylinder 7 can be adjusted by the auxiliary cylinder 8, and the boosting push cylinder 7 is aligned with the bucket 5. When the boosting push cylinder 7 is extended, the bucket 5 can be pushed to rotate, and the bucket 5 with the shoveled materials can be pushed out of the material pile.

[0034] In addition, there is a support platform 52 at the bottom of the outer side of the bucket 5, the moving end of the booster push oil cylinder 7 faces the support platform 52, the support platform 52 has a spherical crown groove, the moving end of the booster push oil cylinder 7 is a push ball part 71, and the push ball part 71 is a spherical structure that matches the spherical crown groove. When the bucket 5 is moved out of the material pile, the telescopic state of the booster push oil cylinder 7 and the auxiliary oil cylinder 8 is automatically and dynamically adjusted, so that the push ball part 71 of the booster push oil cylinder 7 can maintain sliding contact with the spherical crown groove when pushing the support platform 52, prolonging the contact time between the push ball part 71 and the support platform 52, that is, prolonging the effective pushing time of the pushing assembly, and the bucket 5 can be effectively pushed out of the material pile. When the bucket 5 reaches the material turning position, the hydraulic motor drives the bucket 5 to rotate, and the bucket 5 flips the material onto the chain plate conveyor 10.

[0035] 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. A narrow hole ballast dump truck, characterized in that: include: An engineering chassis (1) having a power unit and a cab (2) on top; A conveyor, which is arranged on the engineering chassis (1) and is located above the cab (2), and the conveying terminal is located above the rear side of the engineering chassis (1); The material tipping mechanism comprises a bucket (5) and a tipping mechanism for driving the bucket (5) to rotate so as to tip the material in the bucket (5) onto a conveyor.

2. A narrow hole ballast dump truck according to claim 1, characterized in that: The conveyor comprises a support frame (9) arranged on an engineering chassis (1) and a chain conveyor (10) arranged on the support frame (9); the chain conveyor (10) comprises an inclined conveying section and a horizontal conveying section which are connected; the inclined conveying section gradually inclines downward in a direction away from the horizontal conveying section; and the inclined conveying section is located on one side of the turning mechanism.

3. A narrow hole ballast dump truck according to claim 2, characterized in that: Both sides of the chain conveyor (10) in the width direction are provided with material blocking plates.

4. A narrow hole ballast dump truck according to claim 1, characterized in that: The turning mechanism comprises a turntable (3) rotatably arranged on the engineering chassis (1), a turning drive device arranged on the engineering chassis (1) and driving the turntable (3) to rotate, and a turning assembly connected between the turntable (3) and the bucket (5).

5. A narrow hole ballast dump truck according to claim 4, characterized in that: The tilting assembly comprises a telescopic arm (4) whose two ends are respectively connected to the turntable (3) and the bucket (5) for rotation, a lifting cylinder (6) whose two ends are respectively connected to the turntable (3) and the telescopic arm (4) for rotation, a hydraulic motor arranged on the bucket (5) and driving the bucket (5) to rotate around the telescopic arm (4), and a pushing assembly arranged on the telescopic arm (4) and used to push the bucket (5) to rotate.

6. A narrow hole ballast dump truck according to claim 5, characterized in that: The telescopic arm (4) comprises a mounting tube, a movable arm, and an oil cylinder arranged in the mounting tube and having a movable end connected to the movable arm. The movable arm comprises a sliding arm section and a side arm section which are integrally connected. The sliding arm section is slidingly arranged on the mounting tube. The mounting tube is rotatably arranged on the turntable (3). The end of the lifting oil cylinder (6) is rotatably connected to the mounting tube.

7. A narrow hole ballast dump truck according to claim 6, characterized in that: The pushing assembly comprises a boosting oil cylinder (7) and an auxiliary oil cylinder (8) which are rotatably arranged at two locations on the side arm section of the moving arm respectively; one end of the auxiliary oil cylinder (8) away from the side arm section of the moving arm is rotatably connected to the cylinder barrel of the boosting oil cylinder (7); and the moving end of the boosting oil cylinder (7) faces the bucket (5).

8. The narrow hole ballast dump truck according to claim 7, characterized in that: The outer bottom of the bucket (5) is provided with a push platform (52), and the moving end of the booster oil cylinder (7) faces the push platform (52).

9. A narrow hole ballast dump truck according to claim 8, characterized in that: The push platform (52) has a spherical crown groove, and the moving end of the force-adding oil cylinder (7) is a ball-pushing part (71), which is a spherical structure that matches the spherical crown groove.

10. The narrow hole ballast dumper according to claim 1, characterized in that: The inner side of the bucket (5) is provided with two symmetrically distributed material guide plate parts (51), and a bucket-shaped channel is formed between the two material guide plate parts (51).

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