Main wheel and auxiliary wheel mutually adaptive walking device of multi-track large-span material distribution belt unloading machine

Abstract

The utility model discloses a multi-track large-span material distribution belt unloader main wheel and auxiliary wheel mutually-adaptive walking device which comprises a main track, a main wheel and an auxiliary wheel. The auxiliary rail is parallel to the main rail; the unloading vehicle is provided with two first hinge parts, the first hinge parts are vertically provided with hinge shafts, and the unloading vehicle is provided with driving wheels; second hinge parts are arranged at the positions, corresponding to the two first hinge parts, of the rear end of the material distributing belt, hinge holes are formed in the second hinge parts, the second hinge parts are arranged on the hinge shafts in a sleeving mode through the hinge holes, the diameter of the hinge holes is larger than that of the hinge shafts, and vertical gaps are formed between the upper ends and the lower ends of the second hinge parts and the first hinge parts. The material distributing belt is provided with an auxiliary wheel; the upper end and the lower end of the first buffering part abut against the material distributing belt and the discharging trolley correspondingly, and the first buffering part is configured to be capable of generating elastic deformation under the action of external force. According to the utility model, the abrasion of the driving wheel can be reduced, and the phenomena of deviation and derailing of the driving wheel and the auxiliary wheel can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to material conveying equipment technical field, especially in a kind of main auxiliary wheel mutually adaptive walking device of multi-track large span distribution belt unloading car. BACKGROUND

[0002] Mobile belt unloading machine is a kind of movable unloading car that can be moved along the length direction of conveying belt, distribution belt is arranged on the unloading car, and unloading is realized at any position in the moving range by moving the unloading car along the length direction of conveying belt, so as to realize the conveying equipment of multi-point distribution.For the large-span distribution belt, in order to prevent the equipment from tipping over, auxiliary wheels for auxiliary walking are needed at both ends of the distribution belt, since the material on the distribution belt can only be transported to one side, the overall gravity of the equipment will be offset to one side during the unloading process, but the unloading car and the distribution belt are connected by bolts, which is a rigid connection, the disadvantages of this connection method are that the driving wheel of the unloading car is easy to be stuck or derailed, and the driving wheel is easy to be derailed when the auxiliary wheel is derailed. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a kind of main auxiliary wheel mutually adaptive walking device of multi-track large span distribution belt unloading car, which can reduce the wear of driving wheel, and can reduce the phenomenon of driving wheel and auxiliary wheel deviation and derailment.

[0004] The main auxiliary wheel mutually adaptive walking device of multi-track large span distribution belt unloading car according to the utility model embodiment comprises:

[0005] Main rail, front and back distribution;

[0006] Auxiliary rail, located at the left and right sides of the main rail and arranged parallel to the main rail;

[0007] Unloading car, two first hinged parts are spaced apart left and right, the first hinged part is vertically provided with a hinge shaft, and the unloading car is provided with a driving wheel matched with the main rail;

[0008] Distribution belt, located at the front end of the unloading car and distributed left and right, the rear end of the distribution belt is respectively provided with a second hinged part corresponding to two first hinged parts, the second hinged part is provided with a hinge hole and is sleeved on the hinge shaft through the hinge hole, the diameter of the hinge hole is greater than the diameter of the hinge shaft, and the upper and lower ends of the second hinged part are both provided with a vertical gap between the first hinged part, so that the distribution belt has a vertical space relative to the unloading car, and the distribution belt is provided with an auxiliary wheel matched with the auxiliary rail;

[0009] The first buffer part is arranged to be elastically deformed under external force.

[0010] The multi-track large-span distribution belt and discharge vehicle main and auxiliary wheel mutually adaptive walking device has at least the following beneficial effects:

[0011] The two first hinge parts are arranged on the discharge vehicle, and the second hinge part is correspondingly arranged on the distribution belt, the second hinge part is sleeved on the hinge shaft of the first hinge part through the hinge hole, the distribution belt is connected with the discharge vehicle, the diameter of the hinge hole is larger than the diameter of the hinge shaft, the distribution belt can have a certain space for transverse swinging relative to the discharge vehicle, the upper end and the lower end of the second hinge part are both left with a gap relative to the first hinge part, the first buffer part which can be elastically deformed is arranged between the distribution belt and the discharge vehicle to support the distribution belt, so that the distribution belt can have a certain space for vertical floating relative to the discharge vehicle, in the process of moving and discharging the equipment, the distribution belt can swing transversely and float vertically relative to the discharge vehicle, so as to reduce the influence of the gravity center deviation caused by material conveying on the driving wheel, thereby reducing the wear of the driving wheel and reducing the phenomenon of the driving wheel running off the track, and the auxiliary wheel is also reduced from running off the track due to the deviation of the driving wheel.

[0012] According to some embodiments of the utility model, the front end of distribution belt is equipped with at least two first buffer parts which are arranged in left and right intervals.

[0013] According to some embodiments of the utility model, the first buffer part is provided with a first buffer block, the upper end and the lower end of the first buffer block are respectively abutted with the distribution belt and the discharge vehicle, the first buffer block is fixedly connected with a first screw rod, the first screw rod is vertically arranged in the distribution belt and is screw connected with a first nut, so as to fix the first buffer part on the distribution belt.

[0014] According to some embodiments of the utility model, the discharge vehicle is horizontally provided with a first plate, the first plate is used for abutting with the lower end of the first buffer block, the distribution belt is provided with a waist-shaped groove for the first screw rod to pass through, and the projection of the waist-shaped groove on the horizontal plane is at least partially located outside the projection range of the first plate on the horizontal plane.

[0015] According to some embodiments of the utility model, the discharge vehicle is oppositely provided with two second plates, the second plates are arranged perpendicularly to the left and right directions, the distribution belt is provided with two second buffer parts, the two second buffer parts are located between the two second plates, and the two second buffer parts are respectively abutted with the two second plates, and the second buffer part is arranged to be elastically deformed under external force.

[0016] According to some embodiments of the utility model, the branch belt is detachably connected with a support between two second plates, the support corresponds to the second buffer part one by one, the support is equipped with left and right through mounting holes, the second buffer part is equipped with a second buffer block, the second buffer block is fixedly connected with a second screw rod, the second screw rod is arranged in the mounting hole and is threadedly connected with a second nut, the left and right ends of the second buffer block abut against the second plate and the support respectively.

[0017] According to some embodiments of the utility model, the branch belt is horizontally equipped with left and right distributed third plates, the third plate is equipped with a vertical first positioning hole, the support is equipped with a mounting groove for the third plate to be partially embedded, and is equipped with a vertical second positioning hole, the support is also equipped with a vertical adjustable positioning rod, the positioning rod is used for being inserted into the first positioning hole and the second positioning hole, so as to fix the support on the third plate.

[0018] According to some embodiments of the utility model, the positioning rod is vertically slidably arranged in the support, an elastic member is arranged between the support and the positioning rod, the elastic member is located on the lower side of the third plate and is used for applying an upward elastic force to the positioning rod, so as to keep the positioning rod partially inserted into the first positioning hole and the second positioning hole in normal state.

[0019] According to some embodiments of the utility model, the positioning rod comprises a first section and a second section sequentially distributed from top to bottom, a downward step surface is formed between the first section and the second section, the first section is used for being inserted into the first positioning hole and the second positioning hole, the elastic member is a spring, the spring is sleeved on the second section, and the two ends of the spring abut against the step surface and the support respectively.

[0020] According to some embodiments of the utility model, the second section is vertically slidably arranged in the support, the second section is equipped with an abutting portion on the side of the support away from the spring, the abutting portion is used for abutting against the support, and the abutting portion is equipped with a horizontal through operating hole.

[0021] Additional aspects and advantages of the utility model will be in part apparent and in part pointed out hereinafter in the description. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model will be further described below in combination with the drawings and embodiments, wherein:

[0023] Figure 1 It is the mounting structure schematic diagram of the utility model embodiment;

[0024] Figure 2 It isFigure 1 side view of the embodiment of the present application;

[0025] Figure 3 is the installation structure schematic diagram of the material distribution belt and the unloading vehicle of the embodiment of the present application;

[0026] Figure 4 is the exploded view of the installation structure of the material distribution belt and the unloading vehicle of the embodiment of the present application;

[0027] Figure 5 is the installation structure schematic diagram of the first buffer part and the second buffer part of the embodiment of the present application;

[0028] Figure 6 is the exploded view of the installation structure of the bracket of the embodiment of the present application;

[0029] Figure 7 is the structure schematic diagram of the bracket and the second buffer part of the embodiment of the present application;

[0030] Figure 8 is the exploded view of the installation structure of the bracket and the second buffer part of the embodiment of the present application.

[0031] Figures:

[0032] main rail 100;

[0033] auxiliary rail 200;

[0034] unloading vehicle 300, first hinged part 310, hinged shaft 320, driving wheel 330, first plate 340, second plate 350;

[0035] material distribution belt 400, waist-shaped groove 401, first positioning hole 402, second hinged part 410, hinged hole 411, auxiliary wheel 420, bracket 430, installation groove 431, second positioning hole 432, abutting plate 433, third plate 440, positioning rod 450, first section 451, second section 452, abutting part 453, operation hole 454, threaded hole 455, spring 460;

[0036] first buffer part 500, first buffer block 510, first screw rod 520, first nut 530;

[0037] second buffer part 600, second buffer block 610, second screw rod 620, second nut 630. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used merely for the purpose of explaining the present application, and should not be construed in a limiting sense on the present application.

[0039] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In the description of the present application, the plural means more than two. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0041] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0042] Referring to Figures 1 to 5 The main and auxiliary wheel mutual adaptation walking device of the multi-track large-span distribution belt unloading car of one embodiment of the present application comprises: a main rail 100, an auxiliary rail 200, an unloading car 300, a distribution belt 400, and a first buffer portion 500.

[0043] The main rail 100 is distributed front and back.

[0044] The auxiliary rail 200 is located on the left and right sides of the main rail 100 and is arranged parallel to the main rail 100, that is, the auxiliary rail 200 is also distributed front and back.

[0045] The unloading car 300 is provided with two first hinged portions 310 at intervals left and right, the first hinged portion 310 is vertically provided with a hinge shaft 320, the unloading car 300 is provided with a driving wheel 330 matched with the main rail 100, the driving wheel 330 can move along the main rail 100 front and back to drive the unloading car 300 to move front and back; specifically, in the present embodiment, the first hinged portion 310 comprises two mounting plates oppositely arranged up and down, and the hinge shaft 320 is arranged between the two mounting plates.

[0046] The distribution belt 400 is located at the front end of the discharge vehicle 300 and is distributed left and right, and the rear end of the distribution belt 400 is provided with a second hinge part 410 corresponding to the two first hinge parts 310, respectively. The second hinge part 410 is provided with a hinge hole 411 and is sleeved on the corresponding hinge shaft 320 through the hinge hole 411. The diameter of the hinge hole 411 is larger than the diameter of the hinge shaft 320. In this way, the distribution belt 400 is connected to the discharge vehicle 300, and the distribution belt 400 can have a certain space for lateral swinging relative to the discharge vehicle 300. Obviously, by providing two first hinge parts 310, the swinging range of the distribution belt 400 can be limited to avoid large lateral swinging of the distribution belt 400. In addition, the upper and lower ends of the second hinge part 410 have vertical gaps between the first hinge part 310, that is, the upper end of the second hinge part 410 has a gap between the upper mounting plate, and the lower end of the second abutting part 453 also has a gap between the lower mounting plate. Therefore, the distribution belt 400 can have a certain space for vertical movement relative to the discharge vehicle 300. Further, the distribution belt 400 is provided with an auxiliary wheel 420 cooperating with the auxiliary rail 200, and the auxiliary wheel 420 can move forward and backward along the auxiliary rail 200 to assist the driving wheel 330 to move forward and backward.

[0047] The upper and lower ends of the first buffer part 500 abut against the distribution belt 400 and the discharge vehicle 300, respectively, to support the distribution belt 400, and also leave a vertical gap between the lower end of the second abutting part 453 and the first abutting part 453. Among them, the first buffer part 500 is configured to elastically deform under external force. In this way, when the distribution belt 400 moves vertically relative to the discharge vehicle 300, it can be limited and buffered by the first buffer part 500.

[0048] The main auxiliary wheel mutual adaptation walking device of the multi-track large-span distribution belt unloading vehicle, two first hinged parts 310 are arranged on the unloading vehicle 300, a second hinged part 410 is correspondingly arranged on the distribution belt 400, the second hinged part 410 is sleeved on the hinge shaft 320 of the first hinged part 310 through the hinge hole 411, and the distribution belt 400 and the unloading vehicle 300 are connected in this way. Since the diameter of the hinge hole 411 is greater than the diameter of the hinge shaft 320, the distribution belt 400 can have a certain space for transverse swinging relative to the unloading vehicle 300, and the upper end and the lower end of the second hinged part 410 are both left with a gap between the first hinged part 310, and the first buffer part 500 that can be elastically deformed is arranged between the distribution belt 400 and the unloading vehicle 300 to support the distribution belt 400, so that the distribution belt 400 can have a certain space for vertical floating relative to the unloading vehicle 300. In this way, during the movement of the equipment and the unloading process, the distribution belt 400 can swing transversely and vertically float relative to the unloading vehicle 300 to reduce the influence of the gravity center deviation caused by material conveying on the driving wheel 330, thereby reducing the wear of the driving wheel 330 and reducing the phenomenon of the driving wheel 330 running off the track, and simultaneously reducing the phenomenon of the auxiliary wheel 420 running off the track due to the deviation of the driving wheel 330.

[0049] Referring to Figure 5 As shown in the utility model, in some embodiments of the utility model, the front end of the distribution belt 400 is provided with at least two first buffer parts 500 arranged at intervals left and right, so as to provide at least two supporting points to support the distribution belt 400 and ensure the stability of the support of the first buffer part 500 on the distribution belt 400.

[0050] Referring to Figure 5 As shown in the utility model, in some embodiments of the utility model, the first buffer part 500 is a polyurethane buffer, and the specific structure is that the first buffer part 500 is provided with a first buffer block 510, the first buffer block 510 is made of polyurethane material, the first buffer block 510 is fixedly connected with a first screw rod 520, the upper end of the first buffer block 510 abuts against the distribution belt 400, the lower end abuts against the unloading vehicle 300, the first screw rod 520 is vertically arranged in the distribution belt 400 and is threadedly connected with a first nut 530, the first nut 530 is used to lock and fix the first buffer part 500 on the distribution belt 400, and the structure is simple and convenient to install.

[0051] Referring to Figure 5As shown, in some embodiments of the utility model, the unloading trolley 300 is horizontally provided with front and rear distributed first plates 340, the first plates 340 are one-to-one corresponding with the first buffer parts 500, the first plates 340 are used for abutting with the lower ends of the first buffer blocks 510, the distributing belt 400 is horizontally provided with left and right distributed third plates 440, the third plates 440 are provided with waist type grooves 401 for the first screw rods 520 to pass through, the first screw rods 520 are threaded in the waist type grooves 401 and are locked and fixed on the third plates 440 through the first nuts 530, wherein the projection of the waist type groove 401 on the horizontal plane is at least partially located outside the projection range of the first plate 340 on the horizontal plane, in this way, when the first buffer part 500 needs to be replaced due to wear, the first nut 530 can be first unscrewed, then the first buffer part 500 is moved along the waist type groove 401, the first screw rod 520 is moved in the waist type groove 401, until the first buffer part 500 is moved to above the third plate 440, then the first buffer part 500 can be removed, and the reverse operation can be performed during installation, the first buffer part 500 is convenient to disassemble and assemble.

[0052] Referring to Figures 5 to 8 As shown, in some embodiments of the utility model, the unloading trolley 300 is horizontally provided with front and rear distributed first plates 340, the first plates 340 are one-to-one corresponding with the first buffer parts 500, the first plates 340 are used for abutting with the lower ends of the first buffer blocks 510, the distributing belt 400 is horizontally provided with left and right distributed third plates 440, the third plates 440 are provided with waist type grooves 401 for the first screw rods 520 to pass through, the first screw rods 520 are threaded in the waist type grooves 401 and are locked and fixed on the third plates 440 through the first nuts 530, wherein the projection of the waist type groove 401 on the horizontal plane is at least partially located outside the projection range of the first plate 340 on the horizontal plane, in this way, when the first buffer part 500 needs to be replaced due to wear, the first nut 530 can be first unscrewed, then the first buffer part 500 is moved along the waist type groove 401, the first screw rod 520 is moved in the waist type groove 401, until the first buffer part 500 is moved to above the third plate 440, then the first buffer part 500 can be removed, and the reverse operation can be performed during installation, the first buffer part 500 is convenient to disassemble and assemble.

[0053] Referring to Figures 5 to 8As shown, in some embodiments of the utility model, detachable connection has support 430 between two second board 350 on material distribution belt 400, support 430 and second buffer part 600 one to one correspondence, support 430 is used to install second buffer part 600, specifically, support 430 is equipped with left and right through mounting hole, second buffer part 600 is set up as polyurethane buffer, and it is equipped with second buffer block 610, second buffer block 610 is fixedly connected with second screw rod 620, and second buffer block 610 left and right two ends are respectively abutted second board 350 and support 430, second screw rod 620 is arranged in mounting hole and is threadedly connected with second nut 630, and second buffer part 600 is installed on support 430 through second nut 630, and the structure is simple and practical. When second buffer part 600 needs to be replaced due to wear, first support 430 is detached from material distribution belt 400, then second buffer part 600 is disassembled and replaced.

[0054] Referring to Figures 5 to 8 As shown, in some embodiments of the utility model, third plate 440 is horizontally arranged on material distribution belt 400, first positioning hole 402 is vertically arranged on third plate 440, mounting groove 431 is arranged on support 430, and third plate 440 is partially embedded in mounting groove 431, the upper and lower ends of mounting groove 431 are closed ends, and third plate 440 is embedded in mounting groove 431 to vertically position support 430 and third plate 440, second positioning hole 432 is vertically arranged on support 430, second positioning hole 432 corresponds to first positioning hole 402 and can be vertically aligned, positioning rod 450 is vertically adjustable and arranged on support 430, positioning rod 450 is used to be inserted into first positioning hole 402 and second positioning hole 432 to horizontally position support 430 and third plate 440, so that support 430 is fixed on third plate 440, when support 430 needs to be disassembled, first positioning hole 402 on third plate 440 is separated from positioning rod 450, then support 430 is removed from third plate 440, and third plate 440 is separated from mounting groove 431, which is very convenient to operate. Obviously, multiple positioning rods 450 can be arranged.

[0055] Referring to Figures 5 to 8 As shown, in some embodiments of the utility model, positioning rod 450 is vertically slidably arranged in support 430, elastic member is arranged between support 430 and positioning rod 450, elastic member is arranged on the lower side of third plate 440, and elastic member is used to exert upward elastic force on positioning rod 450 to keep positioning rod 450 partially inserted into first positioning hole 402 and second positioning hole 432 in normal state, when support 430 needs to be disassembled, positioning rod 450 is applied with force opposite to the elastic force of elastic member, so that positioning rod 450 is separated from first positioning hole 402 on third plate 440, which is very convenient to operate without the aid of special tools.

[0056] With reference to Figures 5 to 8 As shown in the drawings, in some embodiments of the present application, the positioning rod 450 comprises a first section 451 and a second section 452 distributed in sequence from top to bottom, the cross-sectional size of the first section 451 is larger than that of the second section 452, so as to form a downward step surface between the first section 451 and the second section 452, the first section 451 is used for inserting into the first positioning hole 402 and the second positioning hole 432, the elastic member is provided as a spring 460, the spring 460 is sleeved on the second section 452, and the upper and lower ends of the spring 460 abut against the step surface and the support 430 respectively, so as to exert an upward elastic force on the positioning rod 450, and the structure is simple and stable.

[0057] With reference to Figure 7 And Figure 8 As shown in the drawings, in some embodiments of the present application, the support 430 is provided with an abutment plate 433 on the lower side of the third plate 440, the two ends of the spring 460 abut against the step surface and the abutment plate 433 respectively, the abutment plate 433 is provided with a hole position for the second section 452 to pass through, so that the second section 452 is vertically slid through the abutment plate 433, the second section 452 is provided with an abutment portion 453 on the side away from the spring 460 of the abutment plate 433, the abutment portion 453 is used for abutting against the support 430, so as to avoid that after the support 430 is removed, the positioning rod 450 is directly popped out from the support 430 under the action of the spring 460, further, the abutment portion 453 is provided with a horizontal through operation hole 454, by providing the operation hole 454, a suitable force position is provided for the operator to pull down the positioning rod 450, so that the positioning rod 450 is separated from the first positioning hole 402, and the operation convenience is improved. It can be conceived that in order to facilitate the dismounting or mounting of the positioning rod 450 and the spring 460 from or on the support 430, the first section 451 and the second section 452 are detachably connected, one end of the second section 452 towards the first section 451 is provided with an external thread, and the first section 451 is provided with a threaded hole 455, so as to threadedly mount the second section 452.

[0058] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0059] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the knowledge range that the person skilled in the art has possesses.

Claims

1. A main and auxiliary wheel mutually adaptive walking device of a multi-track large-span distribution belt unloading car, characterized in that, include: Main track, front and rear distribution; Auxiliary rails, located on the left and right sides of the main rail and arranged parallel to the main rail; The unloading vehicle is provided with two first hinged parts at intervals on the left and right sides, the first hinged parts are vertically provided with hinge shafts, and the unloading vehicle is provided with a driving wheel matched with the main rail; The material-dividing belt is located at the front end of the unloading vehicle and is distributed on the left and right sides. The rear end of the material-dividing belt is respectively provided with a second hinge part corresponding to the two first hinge parts. The second hinge part is provided with a hinge hole and is sleeved on the hinge shaft through the hinge hole. The diameter of the hinge hole is larger than the diameter of the hinge shaft. There is a vertical gap between the upper and lower ends of the second hinge part and the first hinge part, so that the material-dividing belt has space for vertical movement relative to the unloading vehicle. The material-dividing belt is provided with an auxiliary wheel that cooperates with the auxiliary rail; The first buffer portion has upper and lower ends respectively abutting against the material dividing belt and the unloading vehicle to support the material dividing belt. The first buffer portion is configured to be elastically deformed under the action of external force.

2. The main and auxiliary wheel mutual adaptation walking device of the multi-rail long-span distribution belt unloading vehicle according to claim 1, characterized in that: The front end of the material dividing belt is correspondingly provided with at least two first buffer parts spaced apart from each other on the left and right sides.

3. The main and auxiliary wheel mutual adaptation walking device of the multi-rail long-span distribution belt unloading vehicle according to claim 1, characterized in that: The first buffer portion is provided with a first buffer block, the upper and lower ends of the first buffer block respectively abut the material dividing belt and the unloading vehicle, the first buffer block is fixedly connected to a first screw, the first screw is vertically penetrated through the material dividing belt and is threadedly connected to a first nut to fix the first buffer portion to the material dividing belt.

4. The main and auxiliary wheel mutual adaptation walking device of the multi-rail long-span distribution belt unloading vehicle according to claim 3, characterized in that: The unloading vehicle is horizontally provided with a first plate, which is used to abut against the lower end of the first buffer block. The material dividing belt is provided with a waist-shaped groove for the first screw to pass through, and the projection of the waist-shaped groove on the horizontal plane is at least partially located outside the projection range of the first plate on the horizontal plane.

5. The main and auxiliary wheel mutual adaptation walking device of multi-rail long-span distribution belt unloading vehicle according to claim 1, characterized in that: The unloading vehicle is provided with two second plates opposite to each other on the left and right sides, and the second plates are arranged perpendicular to the left and right directions. Two second buffer parts are installed on the material dividing belt, and the two second buffer parts are located between the two second plates, and the two second buffer parts respectively abut the two second plates. The second buffer parts are configured to undergo elastic deformation under the action of external force.

6. The main and auxiliary wheel mutual adaptation walking device of the multi-rail long-span distribution belt unloading vehicle according to claim 5, characterized in that: The material distribution belt is detachably connected to a bracket between the two second plates, and the bracket corresponds to the second buffer part one by one. The bracket is provided with a mounting hole passing through the left and right sides, and the second buffer part is provided with a second buffer block. The second buffer block is fixedly connected to a second screw rod, and the second screw rod is passed through the mounting hole and is threadedly connected to a second nut. The left and right ends of the second buffer block respectively abut the second plate and the bracket.

7. The main and auxiliary wheel mutual adaptation walking device of the multi-rail long-span distribution belt unloading vehicle according to claim 6, characterized in that: The material distribution belt is horizontally provided with a third plate distributed on the left and right, and a first positioning hole extending vertically is provided on the third plate. The bracket is provided with a mounting groove for partially embedding the third plate, and a second positioning hole extending vertically. The bracket is also provided with a positioning rod that can be adjusted vertically, and the positioning rod is used to insert into the first positioning hole and the second positioning hole to fix the bracket to the third plate.

8. The main and auxiliary wheel mutual adaptation walking device of the multi-rail long-span distribution belt unloading vehicle according to claim 7, characterized in that: The positioning rod vertically slides through the support, and an elastic member is arranged between the support and the positioning rod, and the elastic member is located at the lower side of the third plate and is used for applying an upward elastic force to the positioning rod to keep the positioning rod partially inserted into the first positioning hole and the second positioning hole in a normal state.

9. The main and auxiliary wheel mutual adaptation walking device of the multi-rail long-span distribution belt unloading vehicle according to claim 8, characterized in that: The positioning rod comprises a first section and a second section arranged in sequence from top to bottom, a downward step surface is formed between the first section and the second section, the first section is used for being inserted into the first positioning hole and the second positioning hole, the elastic member is a spring, the spring is sleeved on the second section, and the two ends of the spring respectively abut against the step surface and the support.

10. The main and auxiliary wheel mutual adaptation walking device of the multi-rail long-span distribution belt unloading vehicle according to claim 9, characterized in that: The second section vertically slides through the support, the second section is provided with an abutting portion on the side of the support away from the spring, the abutting portion is used for abutting against the support, and the abutting portion is provided with a horizontal operation hole penetrating through.

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