A bottom electric power device mounting bracket for a mining trackless rubber-wheeled vehicle

Abstract

The present invention relates to the technical field of connection structures, and in particular to a mounting bracket for an electric power device at the bottom of a trackless rubber-tyred vehicle for mining. The mounting bracket comprises a base fixed to the bottom of the rubber-tyred vehicle, a plurality of intermediate rails arranged on the base, a long rail arranged on each of the intermediate rails, and a bracket mounted on the plurality of long rails; the long rails and the intermediate rails both move in the same horizontal direction, and the long rails and the intermediate rails are detachably arranged, and the bracket is designed for mounting an electric power device; by adopting a horizontally movable design, the disassembly and maintenance efficiency of the electric power device at the bottom of the trackless rubber-tyred vehicle for mining is significantly optimized, so that the electric power device can be directly removed from the side of the rubber-tyred vehicle through horizontal movement, without the need for workers to drill into a narrow bottom space or use a lift, thereby reducing the difficulty of operation and the requirements for the site, effectively solving the problems of inconvenient disassembly and assembly and high labor intensity in traditional methods, improving work efficiency, and reducing costs.

Description

Technical Field

[0001] The invention relates to the technical field of connection structures, in particular to a bottom electric power device mounting bracket of a mining trackless rubber-tyred vehicle. Background Art

[0002] With the increasingly stringent national requirements for environmental protection and safety, as well as the continuous development of mining technology and the rapid development of new energy technology, the electrification of mining vehicles has become an inevitable trend in the development of the industry. Mine trackless rubber-tyred vehicles have been widely used in modern mining transportation due to their high efficiency, flexibility, strong adaptability, and unmanned driving. As an important mining transportation equipment, mine trackless rubber-tyred vehicles are mainly used for underground personnel transportation, material handling, and equipment transfer. The electric power device used in mine trackless rubber-tyred vehicles can not only reduce carbon emissions and reduce pollution to the mine environment, but also effectively reduce operating noise and improve operational safety.

[0003] The electric power device on the mining trackless rubber-tyred vehicle is generally installed on the bottom of the rubber-tyred vehicle through a mounting bracket. In the traditional structure, the mounting bracket is a bracket-type structure with multiple mounting positions, which is fastened by bolts. When disassembling and assembling the mounting bracket and the electric power device, due to the small space at the bottom of the rubber-tyred vehicle and the bolts for fastening the mounting bracket are generally installed upward perpendicular to the plane of the bottom of the rubber-tyred vehicle, the disassembly and assembly work is extremely inconvenient, and the mounting bracket needs to be held up at the bottom of the rubber-tyred vehicle for a long time. Therefore, this operation method is more difficult. The operation method of lifting the rubber-tyred vehicle with a lift requires that the rubber-tyred vehicle be moved to the position of the lift in a unified manner, so its convenience of use is also poor. Summary of the Invention

[0004] The present invention provides a bottom electric power device mounting bracket for a mining trackless rubber-tyred vehicle, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A bottom electric power device mounting bracket for a trackless rubber-tyred mining vehicle comprises a base fixed to the bottom of the vehicle, a plurality of intermediate rails arranged on the base, a long rail arranged on each of the intermediate rails, and a bracket mounted on the plurality of long rails;

[0007] The long rail and the middle rail both move in the same horizontal direction, and the long rail and the middle rail are detachably mounted, and the bracket is designed to be used for mounting an electric power device;

[0008] Wherein, a locking structure for locking the position of the long rail is provided on the base.

[0009] In some embodiments of the present invention, the movable space of the middle rail is at least partially located outside the rubber-wheeled vehicle, and the middle rail is at least partially located on the base platform.

[0010] In some embodiments of the present invention, a spring 1 is connected between the middle rail and the base, and a limiting body for limiting the movable space of the middle rail is provided on the base.

[0011] In some embodiments of the present invention, a plurality of supporting plates are provided at the bottom of the base, and each supporting plate supports each of the long rails;

[0012] The supporting plate is inclined, and a supporting surface for cooperating with the supporting plate is provided at the bottom of the long rail.

[0013] In some embodiments of the present invention, a clamping edge is provided on the supporting plate, and a clamping groove for use with the clamping edge is provided at the bottom of the supporting surface.

[0014] In some embodiments of the present invention, the locking structure includes a sealing plate slidably mounted on the support plate, and the sealing plate is located at the lower end of the support plate. The sealing plate is used to seal the end opening of the support plate, and the sealing plate is connected to the support plate via spring 2.

[0015] In some embodiments of the present invention, each of the long rails is provided with a shock absorber and a plurality of guide rods, the bracket is mounted on the long rail via the shock absorber and the plurality of guide rods, and the guide rods slide vertically on the long rail.

[0016] In some embodiments of the present invention, the shock absorber includes an oil barrel fixed on the long rail, a piston 1 sliding in the oil barrel, and a plurality of oil holes 1 opened on the piston 1, the oil hole 1 is used to connect the spaces on both sides of the piston 1, one side of the piston 1 is connected to the oil barrel by a spring 3, and a connecting rod is provided on the other side of the piston 1, and the end of the connecting rod slides out of the oil barrel and is connected to the bracket.

[0017] In some embodiments of the present invention, the diameter of the oil hole 1 is adjustable.

[0018] In some embodiments of the present invention, the shock absorber also includes a sub-barrel installed on the long rail and a piston three that separates the internal space of the sub-barrel, the space on one side of the piston three is used to hold high-pressure inert gas, and the space on the other side of the piston three is used to communicate with the interior of the oil barrel.

[0019] The technical solution of the present invention can achieve the following technical effects:

[0020] By adopting a horizontally movable design, the efficiency of disassembly, assembly and maintenance of the electric power unit at the bottom of the mining rubber-tyred trackless vehicle is significantly optimized. The electric power unit can be directly removed from the side of the rubber-tyred vehicle through horizontal movement, without the need for workers to drill into the narrow bottom space or use a lift, reducing the difficulty of operation and site requirements, and effectively solving the problems of inconvenient disassembly and assembly and high labor intensity in traditional methods, thereby improving work efficiency and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 Schematic diagram of the structure of the base, the middle rail and the long rail in an embodiment of the present invention;

[0024] Figure 3 2 is a schematic structural diagram of a support plate according to an embodiment of the present invention;

[0025] Figure 4 2 is a schematic structural diagram of a long rail according to an embodiment of the present invention;

[0026] Figure 5 is a schematic structural diagram of a shock-absorbing body in an embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the cross-sectional structure of the oil barrel and auxiliary barrel in an embodiment of the present invention;

[0028] Figure 7 1 is a schematic structural diagram of a cross-section of a piston in an embodiment of the present invention.

[0029] Reference numerals:

[0030] 100, base; 101, long rail; 102, bracket; 103, middle rail; 104, spring 1; 105, limiter; 106, support plate; 107, support surface; 108, clamping edge; 109, clamping groove; 110, closing plate; 111, spring 2; 112, rolling element;

[0031] 200, shock absorber; 201, guide rod; 202, oil barrel; 203, piston one; 204, oil hole one; 205, spring three; 206, connecting rod; 207, rotating body; 208, oil hole two; 209, adjusting rod; 210, top screw; 211, auxiliary barrel; 212, piston three. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figures 1 to 2 As shown, a bottom electric power device mounting bracket of a trackless rubber-tyred mining vehicle of the present invention comprises a base 100 fixed to the bottom of the rubber-tyred vehicle, a plurality of intermediate rails 103 arranged on the base 100, a long rail 101 arranged on each intermediate rail 103, and a bracket 102 mounted on the plurality of long rails 101;

[0035] The long rail 101 and the middle rail 103 both move in the same horizontal direction, and the long rail 101 and the middle rail 103 are detachable, and the bracket 102 is designed to install an electric power device;

[0036] Among them, the base 100 is provided with a locking structure for locking the position of the long rail 101;

[0037] In the present invention, the base 100 is pre-fastened to the bottom of the rubber-wheeled vehicle by means of bolts, clamping, etc., the long rail 101 is connected to the bracket 102, and the electric power device of the rubber-wheeled vehicle is installed on the bracket 102. In this way, the disassembly and assembly of the electric power device only requires the disassembly and assembly of the long rail 101 and the base 100. The base 100 can be used as a universal part in conjunction with any long rail 101 and the intermediate rail 103; the intermediate rail 103 mainly serves as an intermediate body to realize the connection between the long rail 101 and the base 100. The use of the middle rail 103 can increase the activity space of the long rail 101, thereby facilitating the direct removal of the bracket 102 from the bottom of the rubber-wheeled vehicle without requiring workers to drill into the bottom of the rubber-wheeled vehicle and remove the bracket 102. This direct removal method can facilitate workers to directly disassemble and assemble the long rail 101 and the middle rail 103 on the side of the rubber-wheeled vehicle, and facilitate direct maintenance of the electric power device on the long rail 101. During assembly, it is also only necessary to remove the long rail 101 from the side of the rubber-wheeled vehicle. It can be installed on the middle rail 103, thereby facilitating the disassembly and assembly of the electric power device, simplifying the operation method and reducing the difficulty of operation. In addition, this method can be operated directly at the parking position of the rubber-wheeled vehicle, which reduces the site requirements. The movement of the long rail 101 and the middle rail 103 on the water surface can directly move the bracket 102 at the bottom of the rubber-wheeled vehicle and the electric power device thereon horizontally, thereby reducing the impact of the narrow space at the bottom of the rubber-wheeled vehicle on the disassembly and assembly work, and there is no need to lift the electric power device and bracket 102 for a long time. The same-direction movement of the long rail 101 and the middle rail 103 can make the long rail 101, the middle rail 103 and the base 100 as a retractable structure, which can extend the movable range of the bracket 102 and facilitate the movement of the electric power device from the bottom of the rubber-wheeled vehicle to the outside of the rubber-wheeled vehicle. The number of sections of this retractable structure can be determined according to actual conditions, that is, the number of settings of the middle rail 103 along its own moving direction is not limited here. As long as it can achieve the effect of this case, it is within the scope of protection of this case.

[0038] It should be noted that the middle rail 103 is slidably connected to the base 100 and cannot be detached, and the middle rail 103 is slidably connected to the long rail 101 and can be detached, that is, the middle rail 103 is also used as a universal part in conjunction with the base 100; the number of the middle rail 103 and the long rail 101 can be set to two or more, as long as it can provide sufficient sliding distance and support strength for the bracket 102; when the long rail 101, the middle rail 103 and the base 100 are retracted to the shortest state, the bracket 102 and the electric power device move to the bottom of the rubber-wheeled vehicle, at this time, the position of the long rail 101 can be locked by the locking structure, thereby fixing the position of the electric power device;

[0039] By adopting a horizontally movable design, the efficiency of disassembly, assembly and maintenance of the electric power unit at the bottom of the mining rubber-tyred trackless vehicle is significantly optimized. The electric power unit can be directly removed from the side of the rubber-tyred vehicle through horizontal movement, without the need for workers to drill into the narrow bottom space or use a lift, reducing the difficulty of operation and site requirements, and effectively solving the problems of inconvenient disassembly and assembly and high labor intensity in traditional methods, thereby improving work efficiency and reducing costs.

[0040] In some embodiments of the present invention, the movable space of the middle rail 103 is at least partially located outside the rubber-wheeled vehicle, and the middle rail 103 is at least partially located on the base 100;

[0041] In the present invention, the middle rail 103 serves as a connecting member, and its range of movement is not limited to the space at the bottom of the rubber-wheeled vehicle, but can be extended to the outside of the rubber-wheeled vehicle through horizontal sliding. This design enables the electric power device installed on the bracket 102 to be directly moved out of the bottom of the rubber-wheeled vehicle, thereby facilitating workers to perform disassembly or maintenance operations in a more spacious external environment without having to enter the narrow space under the vehicle. This method significantly reduces the difficulty of operation and improves work efficiency; the middle rail 103 serves as an intermediate body, and a part of it is always fixed or slidably connected to the base 100 to ensure that it forms a stable connection relationship with the base 100. The base 100, as a basic component fixed to the bottom of the rubber-wheeled vehicle, provides support and guidance for the middle rail 103. At the same time, since the middle rail 103 and the base 100 are slidably connected, the middle rail 103 can move relative to the base 100 within a certain range, thereby realizing horizontal displacement of the electric power device. This design not only ensures the stability of the structure, but also gives the system flexibility.

[0042] like Figure 2 As shown, in some embodiments of the present invention, a spring 104 is connected between the middle rail 103 and the base 100, and a limiting body 105 is provided on the base 100 for limiting the movable space of the middle rail 103;

[0043] It can be seen that the setting of spring 104 is mainly used to provide elastic tension for the middle rail 103. When the bracket 102 is disassembled and moved horizontally, the spring 104 will pull the middle rail 103 to move synchronously. When the middle rail 103 moves to the position of the limiter 105 and is restricted by the limiter 105, the middle rail 103 stops moving. At this time, part of the middle rail 103 is outside the rubber-wheeled vehicle, and the spring 104 stops deforming, thereby transporting the electric power device and the bracket 102 outside the rubber-wheeled vehicle, which is convenient for workers to directly operate; when continuing to move the bracket 102, the long rail 101 The spring 104 is used to prevent the middle rail 103 and the long rail 101 from sliding relative to each other and causing the bracket 102 to fall off when the bracket 102 has not yet moved outside the rubber-wheeled vehicle. This arrangement ensures that the bracket 102 can be translated to the specified position and realizes the sequential movement of the middle rail 103 and the long rail 101. The limiter 105 on the middle rail 103 ensures that at least part of the middle rail 103 is always located on the base 100.

[0044] In actual use, at least one-third of the middle rail 103 needs to always be located on the base 100 to ensure sufficient strength; the limiting body 105 can adopt any structure such as protrusions, baffles, etc. that can limit the position of the middle rail 103, which are all within the scope of protection of this case.

[0045] like Figures 3 and 4 As shown, further, a plurality of supporting plates 106 are provided at the bottom of the base 100, and each supporting plate 106 supports each long rail 101;

[0046] The support plate 106 is tilted, and a support surface 107 for use with the support plate 106 is provided at the bottom of the long rail 101;

[0047] In the commonly used structure, the support plate 106 is generally set horizontally, which can support the upper structure of the support plate 106. In this case, since the long rail 101 needs to move horizontally, there needs to be a certain gap between the support plate 106 and the support surface 107. The setting of this gap will cause the support plate 106 to be unable to effectively support the long rail 101. The support plate 106 and the support surface 107 are set at an angle, so that when the long rail 101 moves to the bottom of the base 100, the support plate 106 and the support surface 107 are in direct surface contact, that is, the support plate 106 is moved by the support surface 107. 07 achieves a direct and effective lifting effect on the long rail 101, and this setting will not affect the movement of the long rail 101. At the same time, along the length direction of the support plate 106, the support plate 106 and the support surface 107 can achieve a long-distance contact effect; by adopting the structural setting of the support plate 106 and the support surface 107, the bracket 102 and the base 100 can be firmly connected when the electric power device is in the working position, thereby improving the overall firmness of the equipment and avoiding the phenomenon of the middle rail 103 as an intermediate structure shaking when connecting the base 100 and the long rail 101.

[0048] like Figures 3 and 4 As shown, in an optimization of the above embodiment, a clamping edge 108 is provided on the support plate 106, and a clamping groove 109 for use with the clamping edge 108 is provided at the bottom of the support surface 107;

[0049] Since the support plate 106 and the support surface 107 are inclined, the clamping edge 108 and the clamping groove 109 are both in an inclined state. When the bracket 102 moves to the bottom of the rubber-wheeled vehicle, the clamping groove 109 moves to the position of the clamping edge 108, and the clamping edge 108 is clamped into the clamping groove 109. At this time, the support plate 106 realizes the lifting effect on the long rail 101 while also realizing the horizontal locking effect on the long rail 101 through the clamping edge 108 and the clamping groove 109, and cooperates with the locking structure to realize the direct fastening connection relationship between the base 100 and the long rail 101, which greatly improves the structural strength; at this time, the locking structure realizes the lateral limitation of the long rail 101, the support plate 106 realizes the vertical limitation of the long rail 101, and the clamping edge 108 and the clamping groove 109 realize the longitudinal limitation of the long rail 101.

[0050] Furthermore, the locking structure includes a sealing plate 110 slidably mounted on the support plate 106, and the sealing plate 110 is located at the lower end of the support plate 106. The sealing plate 110 is used to block the end opening of the support plate 106. The sealing plate 110 and the support plate 106 are connected by a spring 111.

[0051] When the long rail 101 moves toward the support plate 106, the support plate 101 is separated from the sealing plate 110, and the second spring 111 pushes the sealing plate 110 to return to its original position and confines the long rail 101 to the support plate 106, thereby achieving the locking work;

[0052] It should be noted that when the moving direction of the sealing plate 110 is also horizontal, as shown in FIG. Figure 3 As shown, the inclination of the support surface 107 cannot generate a lateral thrust on the closing plate 110, that is, the support surface 107 cannot push the closing plate 110 to move. At this time, the support surface 107 can be tilted synchronously toward the closing plate 110 on the basis of its original inclination direction, so that the lateral thrust of the closing plate 110 can be achieved, and in order to reduce friction, a rolling body 112 can be added to the closing plate 110.

[0053] like Figure 1 As shown, each long rail 101 is provided with a shock absorber 200 and a plurality of guide rods 201, and the bracket 102 is mounted on the long rail 101 through the shock absorber 200 and the plurality of guide rods 201, and the guide rods 201 slide vertically on the long rail 101;

[0054] By providing the shock-absorbing body 200, a buffering effect can be achieved on the bracket 102 and the electric power device thereon, thereby preventing the vibration of the rubber-wheeled vehicle during operation and driving from being transmitted to the electric power device and causing damage to the device, and at the same time preventing the vibration from causing loosening and damage to the mounting bracket; since the bracket 102 and the electric power device thereon will produce relative movement with the base 100 due to the action of the shock-absorbing body 200, the guide rod 201 is required to achieve a sliding connection relationship with the long rail 101, and the provision of the guide rod 201 can limit the shock-absorbing direction of the bracket 102, thereby preventing the bracket 102 from moving arbitrarily in space.

[0055] like Figures 5 and 6As shown, in an optimized embodiment of the above, the shock absorber 200 includes an oil barrel 202 fixed to the long rail 101, a piston 203 slidingly located in the oil barrel 202, and a plurality of oil holes 204 provided on the piston 203. The oil holes 204 are used to connect the spaces on both sides of the piston 203. One side of the piston 203 is connected to the oil barrel 202 via a spring 205. A connecting rod 206 is provided on the other side of the piston 203. The end of the connecting rod 206 slides out of the oil barrel 202 and is connected to the bracket 102.

[0056] In the present invention, oil is stored inside the oil barrel 202. When the piston 1 203 moves in the oil barrel 202, the oil on the upper and lower sides of the piston 1 203 can flow through multiple oil holes 1 204. The spring 3 205 can provide elastic tension for the piston 1 203, thereby providing elastic tension to the bracket 102 through the connecting rod 206. When the rubber-wheeled vehicle vibrates, the long rail 101 drives the oil barrel 202 to vibrate. At this time, due to inertia, the piston 1 203 will move in the oil barrel 202. The setting of the spring 3 205 can provide a buffering force for the piston 1 203, thereby providing a buffering effect for the bracket 102. At the same time, the flow of oil through the oil hole 1 204 is limited by the diameter of the oil hole 1 204, thereby utilizing the oil and the oil hole 1 204 to achieve the effect of damping the piston 1 203, thereby preventing the bracket 102 and the structure above it from vibrating continuously due to the expansion and contraction of the spring 3 205.

[0057] In some embodiments of the present invention, the diameter of the oil hole 1 204 is adjustable. This adjustable setting can adjust the flow rate and flow rate of the oil flowing through the oil hole 1 204, thereby adjusting its damping effect.

[0058] In the present invention, Figure 7 As shown, a circular chamber can be provided inside the piston 1 203, and a rotating body 207 can be provided in the circular chamber. The rotating body 207 blocks the oil hole 1 204, and a plurality of oil holes 208 are provided on the rotating body 207. When at least a portion of the oil hole 208 overlaps with the oil hole 1 204, the oil can flow through the oil hole 1 204 and the oil hole 208. In this way, by rotating the rotating body 207, the overlapping area of ​​the oil hole 208 and the oil hole 1 204 can be adjusted, thereby achieving the purpose of adjusting the damping effect. ; To facilitate the rotation of the rotating body 207, an adjusting rod 209 can be inserted into the middle of the connecting rod 206, so that one end of the adjusting rod 209 is connected to the rotating body 207, and the other end of the adjusting rod 209 extends beyond the connecting rod 206, so that the rotating body 207 can be driven to rotate by rotating the adjusting rod 209, and the adjusting rod 209 and the connecting rod 206 can be locked by a top screw 210; It should be pointed out that the cross-section of the oil barrel 202 and the piston 203 can be set to any shape such as square, circle, etc.

[0059] like Figure 6As shown, in some embodiments of the present invention, the shock absorber 200 further includes a sub-barrel 211 mounted on the long rail 101 and a piston 3 212 that divides the internal space of the sub-barrel 211. The space on one side of the piston 3 212 is used to contain high-pressure inert gas, and the space on the other side of the piston 3 212 is used to communicate with the interior of the oil barrel 202.

[0060] By setting high-pressure inert gas on one side of piston three 212, a certain pressure can be provided to piston three 212, so that a certain pressure can always be provided to the hydraulic oil on the other side of piston three 212. In this way, the pressure can be transmitted to the oil barrel 202, so that the hydraulic oil in the oil barrel 202 always maintains a certain pressure. The purpose of doing this is to avoid the formation of bubbles in the oil when the oil pressure is too low, resulting in a decrease in the performance of the damper or even damage, that is, to avoid cavitation. At the same time, constant pressure makes the oil flow smoother, reduces the resistance inside the damper, and facilitates the provision of consistent damping force under different working conditions; since the connecting rod 206 moves toward the outside of the oil barrel 202, the space occupied by the connecting rod 206 inside the oil barrel 202 is reduced, and more oil is needed to fill the vacant space. The setting of the sub-barrel 211 and piston three 212 can achieve this purpose.

[0061] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottom electric power device mounting bracket for a mining trackless rubber-tyred vehicle, characterized in that: The vehicle comprises a base fixed to the bottom of the rubber-wheeled vehicle, a plurality of intermediate rails arranged on the base, a long rail arranged on each of the intermediate rails, and a bracket installed on the plurality of the long rails; The long rail and the middle rail both move in the same horizontal direction, and the long rail and the middle rail are detachably mounted, and the bracket is designed to be used for mounting an electric power device; Wherein, a locking structure for locking the position of the long rail is provided on the base; A plurality of supporting plates are provided at the bottom of the base, and each supporting plate supports each long rail; The support plate is inclined, and the bottom of the long rail is provided with a support surface for use with the support plate; The support plate is provided with a clamping edge, and the bottom of the support surface is provided with a clamping groove used in conjunction with the clamping edge; The locking structure includes a sealing plate slidably mounted on the support plate, and the sealing plate is located at the lower end of the support plate. The sealing plate is used to seal the end opening of the support plate, and the sealing plate is connected to the support plate through spring 2.

2. The bottom electric power device mounting bracket of a mining trackless rubber-tyred vehicle according to claim 1 is characterized in that: The movable space of the middle rail is at least partially located outside the rubber-wheeled vehicle, and the middle rail is at least partially located on the base platform.

3. The bottom electric power device mounting bracket of a mining trackless rubber-tyred vehicle according to claim 1 is characterized in that: A spring 1 is connected between the middle rail and the base, and a limiting body for limiting the movable space of the middle rail is provided on the base.

4. The bottom electric power device mounting bracket of a trackless rubber-tyred mining vehicle according to claim 1, characterized in that: Each of the long rails is provided with a shock-absorbing body and a plurality of guide rods. The bracket is installed on the long rail through the shock-absorbing body and the plurality of guide rods. The guide rods slide vertically on the long rails.

5. The bottom electric power device mounting bracket of a mining trackless rubber-tyred vehicle according to claim 4, characterized in that: The shock absorber includes an oil barrel fixed on the long rail, a piston 1 sliding in the oil barrel and a plurality of oil holes 1 opened on the piston 1, the oil holes 1 are used to connect the spaces on both sides of the piston 1, one side of the piston 1 is connected to the oil barrel by a spring 3, and a connecting rod is provided on the other side of the piston 1, the end of the connecting rod slides out of the oil barrel and is connected to the bracket.

6. The bottom electric power device mounting bracket of a mining trackless rubber-tyred vehicle according to claim 5, characterized in that: The diameter of the oil hole 1 can be adjusted.

7. The bottom electric power device mounting bracket of a mining trackless rubber-tyred vehicle according to claim 5, characterized in that: The shock absorber also includes a sub-barrel installed on the long rail and a piston three that separates the internal space of the sub-barrel. The space on one side of the piston three is used to hold high-pressure inert gas, and the space on the other side of the piston three is used to communicate with the interior of the oil barrel.

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