Lifting trolley for overhauling mining dump truck lamp and using method

Abstract

The invention discloses a lifting trolley for mining dump truck lamp overhauling and a using method, and belongs to the technical field of mining dump truck overhauling. The lifting trolley comprises a trolley body support, one end of the trolley body support is connected with a first elevator, and the end, away from the trolley body support, of the first elevator is slidably connected with a second elevator; the end, away from the first elevator, of the second elevator is connected with a workbench, the workbench comprises a workbench supporting structure, and the workbench supporting structure is slidably connected with an overhaul stand; a first lifting mechanism is arranged between the first elevator and the vehicle body support for connection, and a second lifting mechanism is arranged between the workbench supporting structure and the vehicle body support for connection. A third lifting mechanism is arranged on the side, facing the vehicle body support, of the first lifting ladder and connected with the second lifting ladder. The lifting trolley provided by the invention is simple in structure, firm and durable, and improves the convenience and safety of the maintenance operation of the mining dump truck lamp.

Description

Technical Field

[0001] The invention relates to the technical field of maintenance of mining dump trucks, and in particular to a lifting platform for light inspection of mining dump trucks and a use method thereof. Background Art

[0002] The inspection process of mining dump truck lights includes appearance inspection and electrical performance test. The appearance inspection mainly focuses on whether the appearance of the mining dump truck lights is complete, whether there is obvious damage, deformation or stains, and the electrical performance test, including voltage, current, power, luminous flux and other parameters, meets the standard requirements. During the entire inspection process of the lights, tools are needed to disassemble the lights and inspect the inside.

[0003] However, large-scale mining dump trucks have wider bodies, and the distance between the headlights is far and at a certain height from the ground. At present, during the maintenance of the headlights, operators need to use climbing tools such as ladders to reach the headlights for maintenance work. It is inconvenient for the workers to carry maintenance tools and instruments during the climbing and maintenance process. In addition, when the headlight cover is damaged and needs to be disassembled and replaced, the workers need to remain stable during the operation to prevent being stabbed by the damaged lampshade. Therefore, a stable and large-space working platform is required for the maintenance and disassembly of the headlights of mining dump trucks.

[0004] In addition, after inspecting the headlights at one location, it is necessary to move the ladder to another location for inspection. This not only increases the workload of the maintenance personnel and affects the work efficiency, but also the workers are prone to falling risks during the process of inspecting and disassembling the headlights. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a lifting trolley for repairing the lights of a mining dump truck and a method of using the same. By providing a movable and liftable work trolley, it is convenient for workers to repair the lights of a large mining dump truck, and it is convenient for them to carry tools and instruments when repairing and replacing the lights. At the same time, a stable and spacious working platform is provided, and the working platform is extendable, so that two lights can be repaired at one time, thereby reducing the workload of workers, improving work efficiency, and reducing safety risks.

[0006] The technical solution of the present invention is as follows: In a first aspect of the present invention, a lifting platform vehicle for repairing a headlight of a mining dump truck is provided, comprising a vehicle body support, one end of the vehicle body support is connected to a first lifting ladder, an end of the first lifting ladder away from the vehicle body support is slidably connected to a second lifting ladder, an end of the second lifting ladder away from the first lifting ladder is connected to a workbench support structure, and a maintenance platform is slidably connected to the workbench support structure; A first lifting mechanism is provided between the first lifting ladder and the vehicle body support for connection, and a second lifting mechanism is provided between the workbench support structure and the vehicle body support for connection; a third lifting mechanism is provided on the side of the first lifting ladder facing the vehicle body support, and the third lifting mechanism is connected to the second lifting ladder.

[0007] In some embodiments of the present invention, driven wheels are provided on both sides of the vehicle body support, a driving wheel is provided at one end of the vehicle body support away from the driven wheel, and the driving wheel is connected to a direction adjustment mechanism. In some embodiments of the present invention, a plurality of vehicle body support structures are provided on both sides of the vehicle body support, and the vehicle body support structure includes a support rod, a sleeve and a latch, the sleeve is fixedly connected to the vehicle body support, and the support rod can slide in the sleeve; the support rod is provided with a plurality of limiting holes, the sleeve is provided with a through hole, and the latch can pass through the through hole and be inserted into the limiting hole.

[0008] In some embodiments of the present invention, first sliding grooves are provided on both side outer walls of the first lift, and strip-shaped sliding blocks are provided on both side inner walls of the second lift, and the strip-shaped sliding blocks are slidably connected to the sliding grooves. In some embodiments of the present invention, the first lifting mechanism includes a first cross bar, two first connecting rods, and two first hydraulic rods. The two ends of the first cross bar can be rotatably connected to the two sides of the vehicle body support. The two first hydraulic rods are arranged in parallel and respectively connected to the two ends of the first cross bar close to the vehicle body support. The ends of the two first hydraulic rods away from the vehicle body support are connected to the first lifting ladder, and the two first connecting rods are cross-arranged between the two first hydraulic rods. In some embodiments of the present invention, the second lifting mechanism includes a second cross bar and three second hydraulic rods, the two ends of the second cross bar are rotatably connected to the two sides of the vehicle body support, two second hydraulic rods are arranged in parallel and respectively connected to the two ends of the second cross bar close to the vehicle body support, and a second hydraulic rod is arranged between the two second hydraulic rods and is rotatably connected to the second cross bar; one end of the three hydraulic rods away from the vehicle body support is connected to the workbench support structure. In some embodiments of the present invention, the connecting lines of the three hydraulic rods and the workbench support structure form an isosceles triangle. In some embodiments of the present invention, a motor is provided on the workbench support structure, the output shaft of the motor is connected to a lead screw, and a protrusion structure is provided at the bottom of the maintenance table, and the protrusion structure is threadedly connected to the lead screw; The outer walls on both sides of the maintenance platform are provided with strip structures, the inner walls on both sides of the workbench support structure are provided with second sliding grooves, and the strip structures are slidably connected with the second sliding grooves. In some embodiments of the present invention, handrails are provided on both sides of the first and second lifts, and anti-slip structures are provided on the pedals of the first and second lifts; fences are provided on both sides of the inspection platform opposite to the second lift.

[0009] In a second aspect of the present invention, a method for using a lifting trolley for inspecting lights of a mining dump truck is provided, comprising: Step 1: Move the lifting trolley. During the movement, the moving direction can be adjusted by the direction adjustment mechanism. After reaching the inspection position, the vehicle body support structure is lowered to fix the position of the lifting trolley. Step 2: Control the first lifting mechanism, the second lifting mechanism, and the third lifting mechanism to raise the first lifting ladder and the second lifting ladder respectively, so that the maintenance platform reaches the position of the vehicle lamp on one side, and the staff climbs the ladder for maintenance; Step 3: After the inspection of the headlight on one side is completed, the motor on the inspection platform is controlled to rotate forward to move the inspection platform to the headlight on the other side. When the inspection of the headlight on the other side is completed, the motor on the inspection platform is controlled to rotate reversely to move the inspection platform back to its original position. Step 4: After the inspection is completed, the staff will go down the ladder and control the first lifting mechanism, the second lifting mechanism, and the third lifting mechanism to lower the first and second lifting elevators, and move the lifting trolley to the storage position.

[0010] One or more technical solutions of the present invention have the following beneficial effects: By setting up a movable and liftable work trolley, it is convenient for workers to inspect and repair the lights of large mining dump trucks, making it easy for them to carry tools and instruments when inspecting and replacing the lights. At the same time, a stable and spacious work platform is provided, and the work platform can be extended, so that two lights can be inspected at one time, reducing the workload of workers, improving work efficiency and reducing safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The overall structure of a lifting platform for repairing the headlights of a mining dump truck provided in Example 1 of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of a lifting platform for repairing the headlights of a mining dump truck provided in Example 1 of the present invention is shown in FIG. Figure 2 ; Figure 3 A schematic diagram of the working platform structure of a lifting platform vehicle for repairing lights of a mining dump truck provided in Example 1 of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of a workbench of a lifting platform vehicle for repairing lights of a mining dump truck provided in Example 1 of the present invention.

[0012] In the figure: 1. first lift; 2. second lift; 3. workbench; 31. strip structure; 32. raised structure; 33. fence; 4. workbench support structure; 41. motor; 42. lead screw; 43. second slide; 5. driving wheel; 6. second lifting mechanism; 7. first lifting mechanism; 8. third lifting mechanism; 9. vehicle body support structure; 10. driven wheel; 11. first slide; 12. strip slider; 13. direction adjustment mechanism; 14. handrail; 15. vehicle body support. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] Example 1 In a typical embodiment of the present invention, Figure 1-2 As shown, a lifting platform vehicle for repairing a headlight of a mining dump truck is proposed, comprising a vehicle body support 15, one end of the vehicle body support 15 is connected to a first lifting ladder 1, one end of the first lifting ladder 1 away from the vehicle body support 15 is slidably connected to a second lifting ladder 2, one end of the second lifting ladder 2 away from the first lifting ladder 1 is connected to a workbench support structure 4, and a repair platform is slidably connected to the workbench support structure 4; A first lifting mechanism 7 is provided between the first lift 1 and the vehicle body support 15 for connection, and a second lifting mechanism 6 is provided between the workbench support structure 4 and the vehicle body support 15 for connection; a third lifting mechanism 8 is provided on the side of the first lift 1 facing the vehicle body support 15, and the third lifting mechanism 8 is connected to the second lift 2.

[0015] Furthermore, driven wheels 10 are provided on both sides of the vehicle body bracket 15 , and a driving wheel 5 is provided at one end of the vehicle body bracket 15 away from the driven wheel 10 , and the driving wheel 5 is connected to the direction adjustment mechanism 13 . A plurality of vehicle support support structures 9 are provided on both sides of the vehicle support 15. The vehicle support support structure 9 includes a support rod, a sleeve and a latch. The sleeve is fixedly connected to the vehicle support 15, and the support rod can slide in the sleeve; the support rod is provided with a plurality of limiting holes, and the sleeve is provided with a through hole, and the latch can pass through the through hole and insert into the limiting hole. When the lifting trolley reaches the designated position, the position can be fixed by the vehicle support support structure 9. Specifically, the support rod is abutted against the ground, and the latch is inserted into the support rod through the sleeve for limiting.

[0016] The first lift 1 is provided with first slide grooves 11 on both sides of the outer wall, and the second lift 2 is provided with strip sliders 12 on both sides of the inner wall, and the strip sliders 12 are slidably connected with the slide grooves. In this way, the second lift can smoothly slide and extend on the first lift during the rising process, which is convenient for the staff to climb, and can slide and shrink during the descending process, which is convenient for folding and moving.

[0017] The first lifting mechanism includes a first cross bar, two first connecting rods, and two first hydraulic rods. The two ends of the first cross bar can be rotatably connected to the two sides of the vehicle body support 15. The two first hydraulic rods are arranged in parallel and respectively connected to the two ends of the first cross bar close to the vehicle body support 15. The ends of the two first hydraulic rods away from the vehicle body support 15 are connected to the first lifting ladder 1. The two first connecting rods are cross-arranged between the two first hydraulic rods. The two cross-arranged first connecting rods can keep the first lifting mechanism stable. The second lifting mechanism 6 includes a second cross bar and three second hydraulic rods. The two ends of the second cross bar are rotatably connected to the two sides of the vehicle body support 15. Two second hydraulic rods are arranged in parallel and respectively connected to the two ends of the second cross bar close to the vehicle body support 15. A second hydraulic rod is arranged between the two second hydraulic rods and is rotatably connected to the second cross bar; one end of the three hydraulic rods away from the vehicle body support 15 is connected to the workbench support structure 4. The connection line of the connection point of the three hydraulic rods and the workbench support structure 4 forms an isosceles triangle. In this way, the three hydraulic rods can play a role of stable support for the workbench after it is raised.

[0018] like Figure 3-4 As shown, a motor 41 is provided on the workbench support structure 4, the output shaft of the motor 41 is connected to a lead screw 42, and a protruding structure 32 is provided at the bottom of the maintenance platform, and the protruding structure 32 is threadedly connected to the lead screw 42; The outer walls of the inspection platform are provided with strip structures 31 on both sides, and the inner walls of the workbench support structure 4 are provided with second slide grooves 43 on both sides. The strip structures 31 are slidably connected with the second slide grooves 43. Through the above arrangement, the inspection platform can be moved to the other side of the headlight by controlling the motor 41 on the inspection platform to rotate forward. When the headlight on the other side is inspected, the motor 41 on the inspection platform is controlled to rotate reversely to move the inspection platform back to the original position. The working range of the staff is expanded, and it is convenient for the staff to inspect the headlights of large mining dump trucks.

[0019] Handrails 14 are provided on both sides of the first lift 1 and the second lift 2, and the pedals of the first lift 1 and the second lift 2 are provided with anti-slip structures to facilitate operators to climb the ladders and prevent slipping; fences 33 are provided on both sides of the maintenance platform opposite to the second lift 2 to strengthen protection for operators and prevent them from falling.

[0020] In other embodiments of the present invention, a lighting lamp may be provided on the workbench 3 to provide lighting for non-operating personnel, and a connecting structure such as a hook may be provided to connect the workbench 3 near the position of the headlight to keep the workbench 3 stable.

[0021] In a second aspect of the present invention, a method for using a lifting trolley for inspecting lights of a mining dump truck is provided, comprising: Step 1: Move the lifting trolley. During the movement, the moving direction can be adjusted by the direction adjustment mechanism 13. After reaching the inspection position, the vehicle body support structure 9 is lowered to fix the position of the lifting trolley. Step 2: Control the first lifting mechanism 7, the second lifting mechanism 6, and the third lifting mechanism 8 respectively to raise the first lifting ladder 1 and the second lifting ladder 2, so that the maintenance platform reaches the position of the vehicle lamp on one side, and the staff climbs the ladder for maintenance; Step 3: After the inspection of the headlight on one side is completed, the motor 41 on the inspection platform is controlled to rotate forward to move the inspection platform to the headlight on the other side. When the inspection of the headlight on the other side is completed, the motor 41 on the inspection platform is controlled to rotate reversely to move the inspection platform back to its original position. Step 4: After the inspection is completed, the staff will go down the ladder and control the first lifting mechanism 7, the second lifting mechanism 6, and the third lifting mechanism 8 to lower the first lifting elevator 1 and the second lifting elevator 2, and move the lifting trolley to the storage position.

[0022] The present invention provides a lifting trolley for repairing the lights of a mining dump truck and a use method thereof. By arranging a movable and liftable work trolley, it is convenient for workers to repair the lights of a large mining dump truck, and it is convenient for them to carry tools and instruments when repairing and replacing the lights. At the same time, a stable and spacious working platform is provided, and the working platform is extendable, so that two lights can be repaired by climbing the ladder at one time, thereby reducing the workload of workers, improving working efficiency, and reducing safety risks.

[0023] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A lifting platform for inspecting and repairing the lights of a mining dump truck, characterized in that: It includes a vehicle body support, one end of the vehicle body support is connected to a first lift, one end of the first lift away from the vehicle body support is slidably connected to a second lift, one end of the second lift away from the first lift is connected to a workbench, the workbench includes a workbench support structure, and an inspection platform is slidably connected to the workbench support structure; A first lifting mechanism is provided between the first lifting ladder and the vehicle body support for connection, and a second lifting mechanism is provided between the workbench support structure and the vehicle body support for connection; a third lifting mechanism is provided on the side of the first lifting ladder facing the vehicle body support, and the third lifting mechanism is connected to the second lifting ladder.

2. The lifting platform for inspecting and repairing the headlights of a mining dump truck as claimed in claim 1, characterized in that: Driven wheels are arranged on both sides of the vehicle body support, and a driving wheel is arranged on one end of the vehicle body support away from the driven wheel, and the driving wheel is connected to a direction adjustment mechanism.

3. The lifting platform for inspecting and repairing the headlights of a mining dump truck as claimed in claim 1, characterized in that: A plurality of vehicle body support support structures are provided on both sides of the vehicle body support, and the vehicle body support support structure includes a support rod, a sleeve and a latch, the sleeve is fixedly connected to the vehicle body support, and the support rod can slide in the sleeve; the support rod is provided with a plurality of limiting holes, the sleeve is provided with a through hole, and the latch can pass through the through hole and be inserted into the limiting hole.

4. The lifting platform for inspecting and repairing the headlights of a mining dump truck as claimed in claim 1, characterized in that: The outer walls on both sides of the first lift are provided with first sliding grooves, and the inner walls on both sides of the second lift are provided with strip-shaped sliding blocks, and the strip-shaped sliding blocks are slidably connected with the sliding grooves.

5. The lifting platform for inspecting and repairing the headlights of a mining dump truck as claimed in claim 1, characterized in that: The first lifting mechanism includes a first cross bar, two first connecting rods, and two first hydraulic rods. The two ends of the first cross bar can be rotatably connected to the two sides of the vehicle body support. The two first hydraulic rods are arranged in parallel and respectively connected to the two ends of the first cross bar close to the vehicle body support. The ends of the two first hydraulic rods away from the vehicle body support are connected to the first lifting ladder, and the two first connecting rods are cross-arranged between the two first hydraulic rods.

6. The lifting platform for inspecting and repairing the headlights of a mining dump truck as claimed in claim 1, characterized in that: The second lifting mechanism includes a second cross bar and three second hydraulic rods. The two ends of the second cross bar are rotatably connected to the two sides of the vehicle body support. Two second hydraulic rods are arranged in parallel and respectively connected to the two ends of the second cross bar close to the vehicle body support. A second hydraulic rod is arranged between the two second hydraulic rods and is rotatably connected to the second cross bar; one end of the three hydraulic rods away from the vehicle body support is connected to the workbench support structure.

7. A lifting platform for inspecting and repairing lights of a mining dump truck as claimed in claim 6, characterized in that: The connecting lines of the three hydraulic rods and the workbench supporting structure form an isosceles triangle.

8. The lifting platform for inspecting and repairing the headlights of a mining dump truck as claimed in claim 1, characterized in that: The workbench support structure is provided with a motor, the output shaft of the motor is connected to a lead screw, and the bottom of the maintenance table is provided with a protruding structure, which is threadedly connected to the lead screw; The outer walls on both sides of the maintenance platform are provided with raised strip structures, the inner walls on both sides of the workbench support structure are provided with second sliding grooves, and the strip structures are slidably connected to the second sliding grooves.

9. The lifting platform for inspecting and repairing the headlights of a mining dump truck as claimed in claim 1, characterized in that: Handrails are arranged on both sides of the first and second lifts, and anti-slip structures are arranged on the pedals of the first and second lifts; fences are arranged on both sides of the inspection platform opposite to the second lift.

10. The method for using the lifting platform vehicle for inspecting the headlights of a mining dump truck as described in claims 1 to 9, characterized in that: include: Step 1: Move the lifting trolley. During the movement, the moving direction can be adjusted by the direction adjustment mechanism. After reaching the inspection position, the vehicle body support structure is lowered to fix the position of the lifting trolley. Step 2: Control the first lifting mechanism, the second lifting mechanism, and the third lifting mechanism to raise the first lifting ladder and the second lifting ladder respectively, so that the maintenance platform reaches the position of the vehicle lamp on one side, and the staff climbs the ladder for maintenance; Step 3: After the inspection of the headlight on one side is completed, the motor on the inspection platform is controlled to rotate forward to move the inspection platform to the headlight on the other side. When the inspection of the headlight on the other side is completed, the motor on the inspection platform is controlled to rotate reversely to move the inspection platform back to its original position. Step 4: After the inspection is completed, the staff will go down the ladder and control the first lifting mechanism, the second lifting mechanism, and the third lifting mechanism to lower the first and second lifting elevators, and move the lifting trolley to the storage position.

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