An underground mining equipment tire change service vehicle

Abstract

The application discloses a kind of underground mining equipment tire replacement maintenance service vehicle, it is related to tire replacement maintenance technical field, including replacement maintenance vehicle and underground mining car, the top of replacement maintenance vehicle is placed with underground mining car, the maintenance service vehicle designed in the application reduces the time required for maintenance of underground mining car and the transportation cost of underground mining car, reduces the overall maintenance cost of underground mining car, helps to improve the economic benefit of mine, the maintenance service vehicle designed in the structure makes the operator be able to more easily carry out hub replacement maintenance, reduces the operation difficulty, improves work efficiency, in short, the innovative design of this underground mining equipment tire replacement maintenance service vehicle will have a positive impact on underground mining industry, improves equipment availability, reduces maintenance time and cost, while also improving work safety. This technology is expected to be widely used in mining industry, brings convenience and benefit for mine operation.

Description

Technical Field

[0001] This invention relates to the field of tire replacement and repair technology, specifically to a tire replacement and repair service vehicle for underground mining equipment. Background Technology

[0002] Currently, underground mining operates in harsh environments, leading to rapid equipment wear and tear. Mining truck wheel hubs frequently require replacement due to wear and tear or even explosions. However, limited underground space prevents the use of standard large cranes for on-site replacement. This problem has had numerous negative impacts on the mining industry: The environmental conditions in underground mining are extremely challenging, including narrow passages, high temperatures, humidity, and abundant dust, all of which accelerate wear and damage to equipment hubs. This not only increases maintenance needs but also raises the risk of equipment failure, posing a threat to workplace safety. Secondly, due to limited underground space, ordinary cranes cannot access the mining area, making wheel replacement difficult. Technicians have to transport damaged wheels to the surface in batches for repair, which not only wastes valuable time but also reduces production efficiency. Furthermore, the temporary transport of these wheel hubs may lead to further damage, increasing repair costs.

[0003] Based on this, the present invention designs a tire replacement and maintenance service vehicle for underground mining equipment to solve the aforementioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a tire replacement and maintenance service vehicle for underground mining equipment to solve the problems mentioned above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tire replacement and maintenance service vehicle for underground mining equipment, comprising a replacement and maintenance vehicle and an underground mining vehicle, wherein the underground mining vehicle is placed on the top of the replacement and maintenance vehicle, and the replacement and maintenance vehicle includes a service vehicle body for tire replacement and maintenance of the underground mining vehicle and a protective fence, wherein the protective fence is installed on both sides of the top of the service vehicle body, and guide platforms are respectively provided at both ends of the service vehicle body; The service vehicle includes a mobile trailer platform, with mobile wheels installed on both sides of the bottom of the mobile trailer platform, and a lifting assembly installed at the top center of the mobile trailer platform. The guide platform includes a triangular support frame, and a splicing plate is installed on one side of the triangular support frame. Based on the above technical features, the maintenance service vehicle designed in this invention mainly consists of a service vehicle body, a protective fence, and a guide platform. The protective fence is installed on both sides of the top of the service vehicle body. The protective fence is composed of support railings, adjustable railings, and elastic protrusions. It can provide limiting protection for the underground mining vehicle placed on the top of the service vehicle body. The protective fence can also be adjusted for extension and retraction and can be folded and stored according to the usage. The guide platform in this solution consists of a triangular support frame and a splicing plate. By adding two sets of limiting blocks to the middle of one side of the splicing plate, and two sets of limiting slots opened at both ends of the mobile trailer, the two sets of triangular support frames can be limited and locked at both ends of the mobile trailer. This can provide support and limit the movement of the mobile trailer, while also guiding the underground mining vehicle that needs maintenance. This solution utilizes a square mounting slot in the center of the top of the mobile trailer platform. This slot allows the lifting assembly to be installed in the center of the top of the platform while also providing a concealed storage area. The lifting assembly consists of a connecting base, hydraulic cylinders, and a pushing plate. The connecting base connects and fixes two sets of hydraulic cylinders inside the square mounting slot. When the two sets of hydraulic cylinders extend synchronously, they drive the pushing plate connected to the output end to push upwards, thus lifting the underground mining vehicle placed on top of the mobile trailer platform. The lifted underground mining vehicle facilitates the inspection and maintenance of the metal wheel hubs installed on both sides of the bottom. When the two sets of hydraulic cylinders retract synchronously, they can also reset the lifted pushing plate and the underground mining vehicle.

[0006] Preferably, in the above-mentioned underground mining equipment tire replacement and maintenance service vehicle, a damping anti-slip plate is laid on one side of the triangular support frame, and two sets of limiting blocks are installed in the middle of the splicing plate.

[0007] Based on the above technical features, this solution uses two sets of limiting blocks installed in the middle of the splicing plate for the disassembly and assembly connection between the triangular support frame and the mobile trailer plate.

[0008] Preferably, in the above-mentioned underground mining equipment tire replacement and maintenance service vehicle, the underground mining vehicle includes a metal frame, a mining car bucket is installed inside the metal frame, connecting ends are respectively provided at the bottom of both ends of the mining car bucket, and metal wheel hubs are respectively connected to the bottom sides of the metal frame.

[0009] Based on the above technical features, the underground mining vehicle in this solution consists of a metal frame, a mining car bucket, a connecting end, and metal wheel hubs. The metal frame provides the structural foundation, the mining car bucket is responsible for loading ore, the connecting end ensures a stable connection, and the metal wheel hubs support and transmit the weight of the vehicle.

[0010] Preferably, in the above-mentioned underground mining equipment tire replacement and repair service vehicle, the protective fence includes a support railing, and the top two ends of the support railing are connected to an adjustable railing. Several sets of elastic protrusions are respectively provided on the inner two sides of the adjustable railing.

[0011] Based on the above technical features, the protective fence in this solution consists of support railings, adjustable railings, and elastic protrusions. The protective fence is installed on both sides of the top of the service vehicle body, which can provide limiting protection for the underground mining vehicle placed on the top of the service vehicle body. In addition, the protective fence can be adjusted for extension and retraction and can be folded and stored according to the usage.

[0012] Preferably, in the above-mentioned underground mining equipment tire replacement and maintenance service vehicle, the top of the support railing is provided with an adjustment rod groove, the adjustment rod groove is matched with the adjustment railing structure, a positioning hole is provided on one side of the support railing near the adjustment rod groove, the positioning hole is matched with the elastic protrusion structure, the positioning hole and the elastic protrusion are engaged, a hinge is installed at the bottom of the support railing, and a circular insert is provided at the bottom end of the hinge.

[0013] Based on the above technical features, this solution utilizes an adjustment groove at the top of the support railing. Because the adjustment groove matches the structure of the adjustment railing, the support railing can extend and retract according to usage. Furthermore, a positioning hole is provided on one side of one end of the support railing. Because the positioning hole matches the structure of the elastic protrusion, and the positioning hole and the elastic protrusion are in a snap-fit ​​relationship, it can also serve as a locking and limiting mechanism for the adjustment railing extending and retracting within the adjustment groove.

[0014] Preferably, in the above-mentioned underground mining equipment tire replacement and maintenance service vehicle, the top four corners of the mobile trailer are respectively provided with insert rod retaining grooves, the insert rod retaining grooves are matched with the support railing structure, and the middle of the insert rod retaining groove is also provided with insert block positioning holes, the insert block positioning holes are matched with the circular insert block structure.

[0015] Based on the above technical features, this solution provides insert rod slots at the four corners of the top of the mobile trailer platform. Since the insert rod slots match the structure of the support railing, the protective fence can be inserted and connected to the top two sides of the mobile trailer platform. The insert block positioning hole in the middle of the insert rod slot matches the structure of the circular insert block, allowing the hinge and circular insert block installed at the bottom of the support railing to be stored and hidden inside the insertion block positioning hole. This enables the protective fence to be extended, retracted, and folded according to usage.

[0016] Preferably, in the above-mentioned underground mining equipment tire replacement and maintenance service vehicle, a square mounting groove is provided in the center of the top of the mobile trailer plate, and metal guide rails are connected to the top two sides of the mobile trailer plate. The metal guide rails and the metal wheel hubs are in rolling contact. Two sets of limiting slots are also provided at both ends of the mobile trailer plate. The limiting slots are matched with the limiting plug structure, and the limiting slots and the limiting plugs are engaged.

[0017] Based on the above technical features, this solution uses two sets of limiting slots opened at both ends of the mobile trailer plate. Since the limiting slots and limiting blocks are structurally matched and the limiting slots and limiting blocks are engaged, the two sets of triangular support frames can be fixedly engaged at both ends of the mobile trailer plate. This can provide support and limit at both ends of the mobile trailer plate, while also guiding the underground mining vehicle upwards or downwards.

[0018] Preferably, in the above-mentioned underground mining equipment tire replacement and maintenance service vehicle, the lifting component includes a connecting base, two sets of hydraulic cylinders are installed inside the connecting base, and a pushing plate is connected between the output ends of the two sets of hydraulic cylinders. The pushing plate, the connecting base and the square mounting groove structure are matched, and arc-shaped limiting grooves are respectively opened at both ends of the top of the pushing plate.

[0019] Based on the above technical features, the lifting assembly in this solution consists of a connecting base, hydraulic cylinders, and a pushing plate. The connecting base connects and fixes two sets of hydraulic cylinders inside the square mounting slot. When the two sets of hydraulic cylinders extend synchronously, they can drive the pushing plate connected to the output end to push upward, which can lift the underground mining car placed on top of the mobile trailer. The lifted underground mining car facilitates the inspection and maintenance of the metal wheel hubs installed on both sides of the bottom. When the two sets of hydraulic cylinders retract synchronously, they can also reset the lifted pushing plate and the underground mining car.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. The maintenance service vehicle designed in this invention can lift underground mining vehicles to the position for wheel hub replacement, allowing for the repair and replacement of metal wheel hubs in limited underground spaces without having to transport the underground mining vehicles to the surface, thus saving valuable time. The invention, through the structural design of protective fences and guide platforms, provides support and restraint for underground mining vehicles, preventing them from tipping over during maintenance. It also improves the stability of the mobile trailer's upward support of the underground mining vehicles, fully considering the special environment of underground mines, such as narrow passages and harsh conditions, ensuring its reliability and stability under these conditions. 2. The maintenance service vehicle designed in this invention reduces the time required for underground mining vehicle repairs and the transportation costs of underground mining vehicles, thereby lowering the overall maintenance cost and contributing to improved economic efficiency in mines. This structurally designed maintenance service vehicle allows operators to more easily perform wheel hub replacement and repairs, reducing operational difficulty and increasing work efficiency. In summary, this innovative design of an underground mining equipment tire replacement and maintenance service vehicle will have a positive impact on the underground mining industry, improving equipment availability, reducing maintenance time and costs, and also enhancing work safety. This technology is expected to be widely applied in the mining industry, bringing convenience and benefits to mining operations. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the replacement and repair vehicle structure of the present invention; Figure 3 This is a schematic diagram of the service vehicle body structure of the present invention; Figure 4 This is a schematic diagram of the guide platform structure of the present invention; Figure 5 This is a schematic diagram of the underground mining vehicle structure of the present invention; Figure 6 This is a schematic diagram of the protective fence structure of the present invention; Figure 7 This is a schematic diagram of the mobile trailer pallet structure of the present invention; Figure 8 This is a schematic diagram of the lifting component structure of the present invention.

[0023] The attached diagram lists the components represented by each number as follows: 100. Replacement of repair vehicle; 101. Service vehicle body; 101a. Mobile trailer tray; 101a-1. Insert rod retaining groove; 101a-2. Insert block positioning hole; 101a-3. Square mounting slot; 101a-4. Metal guide rail; 101a-5. Limiting slot; 101b. Mobile wheels; 101c. Lifting assembly; 101c-1. Connecting base; 101c-2. Hydraulic cylinder; 101c-3. Pushing plate; 101c-4. Arc-shaped limiting groove; 102. Protective fence; 10 2a. Support railing; 102a-1. Adjusting rod groove; 102a-2. Positioning hole; 102a-3. Hinge; 102a-4. Circular insert; 102b. Adjusting railing; 102c. Elastic protrusion; 103. Guide platform; 103a. Triangular support frame; 103a-1. Damping anti-slip plate; 103b. Splicing plate; 103b-1. Limiting insert; 200. Underground mining car; 201. Metal frame; 202. Mine car bucket; 203. Connecting end; 204. Metal wheel hub. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-4 A tire replacement and maintenance service vehicle for underground mining equipment includes a tire replacement and maintenance vehicle 100 and an underground mining vehicle 200. The underground mining vehicle 200 is placed on top of the tire replacement and maintenance vehicle 100. The tire replacement and maintenance vehicle 100 includes a service vehicle body 101 for tire replacement and maintenance of the underground mining vehicle 200 and a protective fence 102. The protective fence 102 is installed on both sides of the top of the service vehicle body 101. Guide platforms 103 are also provided at both ends of the service vehicle body 101. The service vehicle body 101 includes a mobile trailer 101a, and guide platforms 103 are installed on both sides of the bottom of the mobile trailer 101a. The device has movable wheels 101b, and a lifting assembly 101c is installed at the top center of the movable trailer plate 101a. The guide platform 103 includes a triangular support frame 103a, a splicing plate 103b is installed on one side of the triangular support frame 103a, and a damping anti-slip plate 103a-1 is laid on one side of the triangular support frame 103a. Two sets of limiting blocks 103b-1 are installed in the middle of the splicing plate 103b. The two sets of limiting blocks 103b-1 installed in the middle of the splicing plate 103b are used for the disassembly and assembly connection between the triangular support frame 103a and the movable trailer plate 101a.

[0026] Please see Figure 5-6In this design, the underground mining vehicle 200 includes a metal frame 201, inside which a mining car bucket 202 is installed. Connecting ends 203 are respectively provided at the bottom of both ends of the mining car bucket 202. Metal wheel hubs 204 are also connected to the bottom sides of the metal frame 201. The underground mining vehicle 200 in this design consists of a metal frame 201, a mining car bucket 202, connecting ends 203, and metal wheel hubs 204. The metal frame 201 provides the structural foundation, the mining car bucket 202 is responsible for loading ore, the connecting ends 203 ensure a stable connection, and the metal wheel hubs 204 support and transfer the vehicle's weight, preventing... The protective fence 102 includes a support railing 102a, with adjustable railings 102b connected to the top ends of the support railing 102a. Several sets of elastic protrusions 102c are respectively provided on both sides of the interior of the adjustable railing 102b. In this design, the protective fence 102 is composed of the support railing 102a, the adjustable railing 102b, and the elastic protrusions 102c. This protective fence 102 is installed on both sides of the top of the service vehicle body 101, providing limiting protection for the underground mining vehicle 200 placed on top of the service vehicle body 101. Furthermore, the protective fence 102 can be extended and retracted according to usage. The top of the folding adjustable support railing 102a is provided with an adjusting rod groove 102a-1, which matches the structure of the adjusting railing 102b. A positioning hole 102a-2 is provided on one side of the support railing 102a near the adjusting rod groove 102a-1, which matches the structure of the elastic protrusion 102c. The positioning hole 102a-2 and the elastic protrusion 102c are in a snap-fit ​​engagement. A hinge 102a-3 is installed at the bottom of the support railing 102a, and a circular insert 102a-4 is also provided at the bottom end of the hinge 102a-3. The adjusting rod groove 102a-1 opened at the top of the support railing 102a is matched with the structure of the adjusting railing 102b. The support railing 102a can adjust the extension and retraction of the adjusting railing 102b according to the usage. The positioning hole 102a-2 opened on one side of one end of the support railing 102a is matched with the structure of the elastic protrusion 102c. The positioning hole 102a-2 and the elastic protrusion 102c are in a snap-fit ​​fit. The positioning hole 102a-2 can also play a snap-fit ​​and limit role for the adjusting railing 102b that is adjusted inside the adjusting rod groove 102a-1.

[0027] Please see Figure 7In the mobile trailer platform 101a, four corners at the top are provided with insertion rod retaining grooves 101a-1, which match the structure of the support railing 102a. A block positioning hole 101a-2 is also provided in the center of the insertion rod retaining groove 101a-1, which matches the structure of the circular block 102a-4. By providing insertion rod retaining grooves 101a-1 at the four corners at the top of the mobile trailer platform 101a, and because the insertion rod retaining grooves 101a-1 match the structure of the support railing 102a, it is possible to... The protective fence 102 is inserted and connected to the top two sides of the mobile trailer plate 101a. Through the insertion block positioning hole 101a-2 opened in the middle of the insertion rod groove 101a-1, since the insertion block positioning hole 101a-2 matches the structure of the circular insertion block 102a-4, the hinge 102a-3 and the circular insertion block 102a-4 added to the bottom of the support railing 102a can also be stored and hidden inside the insertion block positioning hole 101a-2. This allows the protective fence 102 to be extended, retracted, and folded according to usage. A square mounting slot 101a-3 is provided in the center of the top of the mobile trailer tray 101a. Metal guide rails 101a-4 are connected to both sides of the top of the mobile trailer tray 101a. The metal guide rails 101a-4 and the metal wheel hub 204 are in rolling contact. Two sets of limiting slots 101a-5 are also provided at both ends of the mobile trailer tray 101a. The limiting slots 101a-5 and the limiting blocks 103b-1 are structurally matched, and the limiting slots 101a-5 and the limiting blocks 103b-1 are in a snap-fit ​​engagement. Two sets of limiting slots 101a-5 are respectively opened at both ends of the mobile trailer plate 101a. Since the limiting slots 101a-5 and the limiting blocks 103b-1 are structurally matched and the limiting slots 101a-5 and the limiting blocks 103b-1 are engaged, the two sets of triangular support frames 103a can be limited and locked at both ends of the mobile trailer plate 101a. This can provide support and limit the movement of the mobile trailer plate 101a at both ends, and can also guide the underground mining vehicle 200 upward or downward.

[0028] Please see Figure 8In this design, the lifting assembly 101c includes a connecting base 101c-1. Two sets of hydraulic cylinders 101c-2 are installed inside the connecting base 101c-1. A pushing plate 101c-3 is connected between the output ends of the two sets of hydraulic cylinders 101c-2. The pushing plate 101c-3, the connecting base 101c-1, and the square mounting groove 101a-3 are structurally matched. Arc-shaped limiting grooves 101c-4 are also provided at both ends of the top of the pushing plate 101c-3. The lifting assembly 101c in this design consists of the connecting base 101c-1, the hydraulic cylinders 101c-2, and the pushing plate 101c-3. The lifting assembly 101c in this design is constructed by connecting the base 101c-1, hydraulic cylinders 101c-2, and pushing plate 101c-3. c-1 allows two sets of hydraulic cylinders 101c-2 to be connected and fixed inside the square mounting slot 101a-3. When the two sets of hydraulic cylinders 101c-2 extend synchronously, they can drive the push plate 101c-3 connected to the output end to push upward, which can lift the underground mining car 200 placed on top of the mobile trailer 101a. The lifted underground mining car 200 facilitates the inspection and maintenance of the metal wheel hubs 204 installed on both sides of the bottom. When the two sets of hydraulic cylinders 101c-2 retract synchronously, they can also reset the lifted push plate 101c-3 and the underground mining car 200.

[0029] Working principle: The maintenance service vehicle designed in this invention mainly consists of a service vehicle body 101, a protective fence 102, and a guide platform 103. The protective fence 102 is installed on both sides of the top of the service vehicle body 101. The protective fence 102 is composed of a support railing 102a, an adjusting railing 102b, and an elastic protrusion 102c. It can provide limiting protection for the underground mining vehicle 200 placed on the top of the service vehicle body 101. The protective fence 102 can also be extended, retracted, and folded according to the usage. The guide platform 103 in this solution consists of a triangular support frame 103a and a splicing plate 103b. By adding two sets of limiting blocks 103b-1 to the middle of one side of the splicing plate 103b, and two sets of limiting slots 101a-5 respectively opened at both ends of the mobile trailer plate 101a, since the limiting slots 101a-5 and the limiting blocks 103b-1 are structurally matched, and the limiting slots 101a-5 and the limiting blocks 103b-1 are in a snap-fit ​​fit, the two sets of triangular support frames 103a can be limited and snapped onto both ends of the mobile trailer plate 101a. This can provide support and limit the two ends of the moving mobile trailer plate 101a, and at the same time guide the underground mining vehicle 200 that needs maintenance. This solution utilizes a square mounting slot 101a-3 located in the center of the top of the mobile trailer platform 101a. This slot allows the lifting assembly 101c to be installed in the center of the top of the mobile trailer platform 101a while simultaneously concealing the lifting assembly 101c. The lifting assembly 101c in this solution consists of a connecting base 101c-1, hydraulic cylinders 101c-2, and a pushing plate 101c-3. The connecting base 101c-1 connects and fixes two sets of hydraulic cylinders 101c-2 to the square mounting slot 101a-3. Inside 3, when the two sets of hydraulic cylinders 101c-2 extend synchronously, they can drive the push plate 101c-3 connected to the output end to push upward, which can lift the underground mining car 200 placed on top of the mobile trailer 101a. The lifted underground mining car 200 makes it convenient to inspect and maintain the metal wheel hubs 204 installed on both sides of the bottom. When the two sets of hydraulic cylinders 101c-2 retract synchronously, they can also reset the lifted push plate 101c-3 and the underground mining car 200.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An underground mining equipment tire change service vehicle comprising a change service vehicle (100) and an underground mining vehicle (200), the underground mining vehicle (200) being placed on top of the change service vehicle (100), characterized in that: The replacement and maintenance vehicle (100) includes a service vehicle body (101) for tire replacement and maintenance of underground mining vehicle (200) and a protective fence (102). The protective fence (102) is installed on both sides of the top of the service vehicle body (101), and guide platforms (103) are respectively provided at both ends of the service vehicle body (101). The service vehicle body (101) includes a mobile trailer (101a), with mobile wheels (101b) installed on both sides of the bottom of the mobile trailer (101a), and a lifting assembly (101c) installed at the top center of the mobile trailer (101a). The guide platform (103) includes a triangular support frame (103a), and a splicing plate (103b) is installed on one side of the triangular support frame (103a). A damping anti-slip plate (103a-1) is laid on one side of the triangular support frame (103a), and two sets of limiting blocks (103b-1) are installed in the middle of the splicing plate (103b). The underground mining vehicle (200) includes a metal frame (201), and metal wheel hubs (204) are respectively connected to the bottom sides of the metal frame (201). The mobile trailer pallet (101a) has a square mounting groove (101a-3) in the center of its top. Metal guide rails (101a-4) are connected to the top two sides of the mobile trailer pallet (101a). The metal guide rails (101a-4) and the metal wheel hub (204) are in rolling contact. Two sets of limiting slots (101a-5) are also provided at both ends of the mobile trailer pallet (101a). The limiting slots (101a-5) are structurally matched with the limiting plugs (103b-1). The limiting slots (101a-5) and the limiting plugs (103b-1) are in a snap-fit ​​engagement.

2. The underground mining equipment tire replacement and repair service vehicle according to claim 1, characterized in that: The metal frame (201) is equipped with a mining car bucket (202), and the bottom of both ends of the mining car bucket (202) are respectively provided with connecting ends (203).

3. The underground mining equipment tire replacement and repair service vehicle according to claim 2, characterized in that: The protective fence (102) includes a support railing (102a), and the top two ends of the support railing (102a) are connected to an adjustable railing (102b). Several sets of elastic protrusions (102c) are respectively provided on the inner sides of the adjustable railing (102b).

4. The underground mining equipment tire replacement and repair service vehicle according to claim 3, characterized in that: The top of the support railing (102a) is provided with an adjustment rod groove (102a-1), which matches the structure of the adjustment railing (102b). The support railing (102a) near the end of the adjustment rod groove (102a-1) is provided with a positioning hole (102a-2), which matches the structure of the elastic protrusion (102c). The positioning hole (102a-2) and the elastic protrusion (102c) are in a snap-fit ​​fit. The bottom of the support railing (102a) is provided with a hinge (102a-3), and the bottom end of the hinge (102a-3) is also provided with a circular insert (102a-4).

5. The underground mining equipment tire replacement and repair service vehicle according to claim 4, characterized in that: The top four corners of the mobile trailer tray (101a) are respectively provided with insert rod retaining grooves (101a-1), which are matched with the structure of the support railing (102a). The center of the insert rod retaining groove (101a-1) is also provided with a plug positioning hole (101a-2), which is matched with the structure of the circular plug (102a-4).

6. The underground mining equipment tire replacement and repair service vehicle according to claim 5, characterized in that: The lifting assembly (101c) includes a connecting base (101c-1), inside which two sets of hydraulic cylinders (101c-2) are installed. A pushing plate (101c-3) is connected between the output ends of the two sets of hydraulic cylinders (101c-2). The pushing plate (101c-3), the connecting base (101c-1) and the square mounting groove (101a-3) are structurally matched. Arc-shaped limiting grooves (101c-4) are also provided at both ends of the top of the pushing plate (101c-3).

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