Rear-mounted tire replacement service vehicle

Abstract

The utility model discloses a rear-mounted tire replacement service vehicle which comprises an operation vehicle, a grabbing device and a hydraulic system oil tank, the operation vehicle comprises a vehicle head and a vehicle frame, a loading platform is arranged on the vehicle frame, the grabbing device further comprises a chassis, A-shaped supporting legs and a mechanical arm, the chassis is arranged at the tail of the loading platform, an integrated base is arranged in the chassis, and the A-shaped supporting legs are arranged on the integrated base. The A-type supporting leg and the mechanical arm are installed on the chassis through an integrated base, the A-type supporting leg is installed on one side of the chassis, the mechanical arm is arranged on a slewing bearing device in the middle of the chassis, a screw type air compressor is arranged at the front end of the loading platform, a tire holding claw tray is arranged in the middle of the loading platform, and a high-position mechanical arm support is further arranged on the front portion of the loading platform. The tire dismounting and mounting work can be completed through the mechanical arm, the flexibility of equipment is greatly improved through the mechanical arm capable of rotating in all directions, the tire can be placed on the loading platform to be maintained, inflated and transported, dispatching of multiple persons and multiple devices is not needed, the maintenance efficiency is greatly improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of mining truck tire changing equipment, specifically a rear-mounted tire changing service vehicle. Background Technology

[0002] Mining trucks are heavy-duty dump trucks used in open-pit mines to complete tasks such as rock and soil stripping and ore transportation. Their working characteristics are short haul distance and heavy load capacity. They are usually loaded with large electric shovels or hydraulic shovels and travel back and forth between the mining point and the unloading point. However, after a long period of use, the tires of mining trucks may be damaged or leak air, so they need to be replaced or repaired.

[0003] However, the tires of mining trucks are extremely large in size and weight. When replacing or repairing them, multiple equipment such as disassembly and assembly equipment and transportation equipment are usually required to complete the work. Both the cost of the engineering machinery and the number of operators are considerable. The scheduling of multiple equipment also increases the complexity of replacement and repair. It is difficult to complete the work by a single person with a single type of equipment, resulting in extremely high maintenance efficiency and cost. Summary of the Invention

[0004] This utility model addresses the challenges of tire replacement in mining trucks, particularly the inconvenience caused by the large size of tires and the frequent need for multi-equipment and personnel coordination during the process. These issues increase the complexity of tire replacement and repair, making it difficult for a single person and equipment to complete the task. Therefore, a rear-mounted tire replacement service vehicle is proposed, comprising:

[0005] The system includes a work vehicle, gripping equipment, and a hydraulic system tank. The work vehicle consists of a cab and a frame, on which a loading platform is mounted. The gripping equipment includes a chassis, A-type outriggers, and a robotic arm. The chassis is located at the rear of the loading platform and has an integrated base. The A-type outriggers and the robotic arm are mounted on the chassis via the integrated base. The A-type outriggers are mounted on one side of the chassis, and the robotic arm is mounted on a slewing bearing in the middle of the chassis. A screw-type air compressor is located at the front of the loading platform, a tire gripper pallet is located in the middle of the loading platform, and a high-position robotic arm support is also located at the front of the loading platform.

[0006] Preferably, the robotic arm includes robotic arm one, robotic arm two, robotic arm three, and a tire-holding gripper. The bottom of robotic arm one is connected to a slewing bearing device on the chassis, the upper part of robotic arm one is connected to robotic arm two, the end of robotic arm two is connected to robotic arm three, and the front end of robotic arm three is connected to the tire-holding gripper through a connecting hinge. A grooved connecting rod is provided at the connection between robotic arm three and the connecting hinge. A luffing cylinder is provided between robotic arm one, robotic arm two, and robotic arm three respectively. The lifting and lowering of the robotic arm is controlled by the cooperation of the luffing cylinders. A telescopic cylinder is also provided inside robotic arm three.

[0007] Preferably, the gripper includes a gripper arm linkage, a gripper arm, and a clamping plate. The gripper arm linkages are installed in pairs at both ends of the gripper beam. The gripper beam is connected to the front end of the robotic arm via a connecting hinge. The front end of the gripper arm linkage is connected to the gripper arm. A clamping plate is provided on the clamping side of the gripper arm. A variable amplitude cylinder is provided between each pair of gripper arm linkages. The extension and retraction of the variable amplitude cylinder causes the gripper arm linkage to drive the gripper arm to open and close.

[0008] Preferably, the clamping disc has several conical protrusions arranged in a ring to prevent the tire from falling off while it is clamped.

[0009] Preferably, hydraulic outriggers are installed on both sides of the loading platform near the front of the vehicle, which can work with A-type outriggers to raise the height and tilt of the vehicle chassis. The A-type outrigger includes a mounting frame and an outrigger. A luffing cylinder is installed between the mounting frame and the outrigger to control the support angle of the A-type outrigger. A telescopic cylinder is installed inside the outrigger to control the extension height of the A-type outrigger.

[0010] Preferably, the screw air compressor is positioned on the loading platform near the robotic arm.

[0011] Preferably, the screw air compressor is provided with an air compressor protective cover, which includes a longitudinal outer steel frame surrounding the air compressor and a metal protective plate fixedly connected to the outer steel frame.

[0012] Preferably, a toolbox is provided on the loading platform.

[0013] Compared with existing technologies, the following beneficial effects can be achieved:

[0014] By equipping the work vehicle with flexible gripping equipment and a screw air compressor, when encountering tire replacement and repair issues, only one worker needs to drive the equipment to the work site to operate it. The tire removal and installation work can be completed by the robotic arm. The robotic arm, which can rotate in all directions, greatly improves the flexibility of the equipment. Tires can also be placed on the loading platform for repair, inflation and transportation. There is no need to coordinate multiple people and multiple equipment, which greatly improves the efficiency of maintenance and reduces maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a rear view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the loading platform of this utility model;

[0018] Figure 4 This is a schematic diagram of the integrated base structure of this utility model;

[0019] Figure 5This is a schematic diagram of the robotic arm chassis structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the robotic arm structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the embryo-holding claw of this utility model;

[0022] 1-Work vehicle, 11-Loading platform, 111-Tire gripper pallet, 12-Hydraulic outriggers, 13-Toolbox, 14-Robot arm support

[0023] 2-Gripping device, 21-Chassis, 22-A-type outrigger, 221-Mounting frame, 222-Outrigger, 23-Robot arm, 231-Robot arm one, 232-Robot arm two, 233-Robot arm three, 234-Tire gripper, 2341-Grip arm link, 2342-Grip arm, 2343-Gripping plate, 235-Connecting hinge, 236-Wire trough link, 24-Integrated chassis

[0024] 3-Hydraulic system oil tank,

[0025] 4-Screw air compressor

[0026] 5-Air compressor guard. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 , Figure 2 As shown, a rear-mounted tire changing service vehicle includes a work vehicle 1, a loading platform 11, a gripping device 2, a hydraulic system oil tank 3, and a screw air compressor 4. The front of the work vehicle 1 is the cab, and the loading platform 11 is set behind the cab. The loading platform 11 is a flat plate structure, which facilitates the placement of tires and other goods. The gripping device 2 is set at the end of the frame, and the hydraulic system oil tank 3 is set on the side of the gripping device 2. The screw air compressor 4 is set behind the gripping device 2, which can realize the function of inflating tires. The hydraulic system oil tank 3 provides hydraulic oil for the entire hydraulic system, including the gripping device 2 and the screw air compressor 4. The hydraulically driven screw air compressor 4 is powered by the power take-off of the vehicle chassis, which also avoids the problem of the air compressor not being able to operate for a long time due to insufficient vehicle battery power.

[0029] like Figure 3As shown, a robotic arm support 14 is installed at the front end of the loading platform 11, and an air compressor cover 5 is installed at the corresponding position of the air compressor. The air compressor cover 5 includes a longitudinal outer steel frame surrounding the air compressor and a metal protective plate fixedly connected to the outer steel frame. The air compressor cover 5 can effectively prevent the gripping equipment 2 from accidentally hitting the air compressor and causing damage to the equipment when gripping large tires. Hydraulic outriggers 12 are installed on both sides of the loading platform 11 near the front of the vehicle. The hydraulic outriggers 12 can raise the height and tilt of the vehicle chassis through telescopic cylinders. When the vehicle chassis is raised, it can effectively balance the vehicle body, increase the upper limit of the gripping weight, and prevent the gripping equipment 2 from deforming or being damaged due to overload during operation. A tire gripper tray 111 is installed in the middle of the loading platform 11, and a high-position robotic arm support 14 is also installed at the front. When the tire gripper 234 is fixed in the high position, tires can also be placed on the loading platform 11. A toolbox 13 is installed in the space behind the hydraulic outriggers 12, which can hold the tools required for related operations.

[0030] like Figure 4 , Figure 5 , Figure 6 As shown, the gripping equipment 2 includes a chassis 21, A-type outriggers 22, and a robotic arm 23. The chassis 21 is fixed to the vehicle frame by U-bolts. An integrated base 24 is installed inside the chassis (21). The A-type outriggers 22 and the robotic arm 23 are mounted on the chassis 21 through the integrated base 24, ensuring that even if the gripping equipment 2 is located at the rear of the vehicle, it will not cause safety hazards during operation due to the rearward center of gravity. The A-type outrigger includes a mounting frame 221 and outriggers 222 on both sides. A luffing cylinder is positioned between the mounting frame 221 and the outriggers 222. The luffing cylinder controls the angle between the two outriggers 222 to adapt to different working environments; the larger the angle, the farther the center of gravity. The A-type outrigger can also raise the vehicle chassis height and tilt using a telescopic cylinder. The telescopic cylinders on both sides can control their extension length to adapt to different terrains. A robotic arm 23 is connected to the center of the chassis 21 via a slewing bearing. The robotic arm 23 consists of robotic arm one 231, robotic arm two 232, robotic arm three 233, and a tire-holding gripper 234. The upper part of robotic arm one 231 is hinged to robotic arm two 232, and the front end of robotic arm two 232 is connected to robotic arm three 233. The robotic arm 233 is articulated, with luffing cylinders installed between each of the three robotic arms 231, 232, and 233. These cylinders control the lifting and lowering of the robotic arm 23. A telescopic cylinder is also installed inside the robotic arm 233 to control its extension and retraction. A tire-holding claw 234 is installed at the end of the robotic arm 233, and is fixed to it via a connecting hinge 235. A grooved connecting rod 236 is installed at the connection between the robotic arm 233 and the connecting hinge 235, allowing the angle of the tire-holding claw 234 to be adjusted vertically. During use, the robotic arm 23 can rotate 360 ​​degrees.

[0031] like Figure 7 As shown, the tire gripper 234 includes a tire gripper crossbeam, which is fixed to a connecting hinge seat. Two pairs of gripper arm connecting rods 2341 are respectively set at both ends of the tire gripper crossbeam. A luffing cylinder is set between the gripper arm connecting rods 2341 on the same side. Grippers 2342 are respectively set at the front ends of the gripper arm connecting rods 2341 on both sides. The opening and closing of the gripper arm 2342 is driven by the extension and retraction of the luffing cylinder. Grippers 2342 are respectively set on the gripping surface on the inner side of the gripper arm 2342. Several protrusions are distributed in a ring on the gripper 2343 to prevent the tire from falling off during the gripping process.

[0032] When the tires of the mining truck need repair or replacement, the worker drives the work vehicle 1 to the work site, parks the work vehicle 1 appropriately, and can then start operating independently. First, the A-type outriggers 22 and hydraulic outriggers 12 are lowered via the control box. Then, the work vehicle 1 frame is raised and balanced by adjusting the A-type outriggers 22 and hydraulic outriggers 12. Next, the gripping device 2 is adjusted. Driven by hydraulics, and with the cooperation of robotic arms 1 (231), 232, and 233, the robotic arm 23 is first adjusted to a suitable lifting position. Raise the height, and rotate the robot arm 23 to the vicinity of the tire via the slewing bearing device on the chassis 21. Push the claw arm linkage 2341 to open the claw arm 2342. At this time, the tire-holding claw 234 is in the ready-to-grip state. Align the tire-holding claw 234 with both sides of the tire, and drive the claw arm linkage 2341 again to tighten the claw arm 2342. At this time, the protrusion on the gripping disc 2343 on the inner side of the claw arm 2342 is firmly embedded in the tire surface. When the robot arm 23 is driven to retract, the protrusion on the gripping disc 2343 can effectively prevent the tire from falling off and causing danger. Adjust the robot arm 23 to place the tire on the loading platform 11. At this point, one work cycle is completed. You can choose to repair, replace, or transport the tire to other work locations. All the above operations can be completed by one person using this equipment.

Claims

1. A rear-mounted tire changing service vehicle, comprising: The work vehicle (1), the gripping equipment (2) and the hydraulic system oil tank (3) are characterized in that: the gripping equipment (2) further includes a chassis (21), A-type outriggers (22) and a manipulator (23). The chassis (21) is located at the rear of the loading platform (11). An integrated base (24) is installed inside the chassis (21). The A-type outriggers (22) and the manipulator (23) are installed on the chassis (21) through the integrated base (24). The A-type outriggers (22) are installed on one side of the chassis (21). The manipulator (23) is installed on the slewing bearing device in the middle of the chassis (21). A screw air compressor (4) is installed at the front end of the loading platform (11). A tire gripper tray (111) is installed in the middle of the loading platform (11). A high-position manipulator bracket (14) is installed at the front of the loading platform (11).

2. The rear-mounted tire changing service vehicle as described in claim 1, characterized in that: The robotic arm (23) includes robotic arm one (231), robotic arm two (232), robotic arm three (233) and a tire-holding claw (234). The bottom of robotic arm one (231) is connected to the slewing bearing device on the chassis (21). The upper part of robotic arm one (231) is connected to robotic arm two (232). The end of robotic arm two (232) is connected to robotic arm three (233). The front end of robotic arm three (233) is connected to tire-holding claw (234) through a connecting hinge seat (235). A grooved connecting rod (236) is provided at the connection between robotic arm three (233) and connecting hinge seat (235). A variable amplitude cylinder is provided between robotic arm one (231), robotic arm two (232) and robotic arm three (233). The lifting and lowering of the robotic arm (23) is controlled by the cooperation of the variable amplitude cylinder. A telescopic cylinder is also provided inside robotic arm three (233).

3. A rear-mounted tire changing service vehicle as described in claim 2, characterized in that: The clamping claw (234) includes a claw arm connecting rod (2341), a claw arm (2342), and a clamping plate (2343). The claw arm connecting rods (2341) are installed in pairs at both ends of the clamping claw beam. The clamping claw beam is connected to the front end of the robotic arm three (233) through a connecting hinge seat (235). The front end of the claw arm connecting rod (2341) is connected to the claw arm (2342). A clamping plate (2343) is provided on the clamping side of the claw arm (2342). A variable amplitude cylinder is provided between each pair of claw arm connecting rods (2341). The extension and retraction of the variable amplitude cylinder causes the claw arm connecting rod (2341) to drive the claw arm (2342) to open and close.

4. A mobile tire changing service vehicle as in claim 3, wherein: The clamping disc (2343) has several conical protrusions arranged in a ring to prevent the tire from falling off while it is clamped.

5. The push behind tire changing service vehicle of any of claims 1-4, wherein: The loading platform (11) is provided with hydraulic outriggers (12) on both sides near the front of the vehicle. These outriggers can work with A-type outriggers (22) to raise the height and tilt of the vehicle chassis. The A-type outrigger (22) includes a mounting frame (221) and an outrigger (222). A variable-amplitude cylinder is provided between the mounting frame (221) and the outrigger (222) to control the support angle of the A-type outrigger (22). A telescopic cylinder is provided inside the outrigger (222) to control the extension height of the A-type outrigger (22).

6. A rear-mounted tire changing service vehicle as described in claim 5, characterized in that: The screw air compressor (4) is located on the loading platform (11) near the side of the robot (23).

7. A rear-mounted tire changing service vehicle as described in claim 6, characterized in that, The screw air compressor (4) is provided with an air compressor cover (5) on the outside. The air compressor cover (5) includes a longitudinal outer steel frame surrounding the air compressor and a metal protective plate fixedly connected to the outer steel frame.

8. A rear-mounted tire changing service vehicle as described in claim 7, characterized in that: A toolbox (13) is provided on the loading platform (11).

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