Modularly-designed motor tractor electric lifting device and using method thereof

Abstract

The invention discloses a modularly-designed tractor electric lifting device and a using method thereof, and belongs to the technical field of tractor lifting equipment.The modularly-designed tractor electric lifting device is characterized in that when multiple chassis frame bodies are combined, two limiting blocks on one side of one chassis frame body are inserted into limiting grooves in one side of the other chassis frame body, and meanwhile inserting rods can slide into inserting holes; the inserting plate can be embedded into the concave hole and extrudes the locking assembly, the connecting plate is pulled to move downwards through the pulling force of the spring, the connecting plate drives the three clamping rods to move downwards and be clamped into the clamping grooves, the purpose of locking the inserting plate is achieved, and then the two chassis frame bodies and the two supporting assemblies can be connected. Therefore, when material loading mechanisms of different specifications are carried on the device, the size of the supporting face of the device can be adjusted at will in a modular design mode, lifting equipment of different models does not need to be replaced, the working intensity is relieved, meanwhile, the use cost is reduced, and efficient and stable transfer of materials is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of tractor lifting equipment, and in particular relates to a modularly designed tractor electric lifting device and a use method thereof. Background Art

[0002] The special traction lifting mobile control platform is mainly composed of an electric lifting trolley, a feeding mechanism and an electronic control system. The tractor electric lifting refers to a device that uses an electric tractor to realize the movement and lifting of the lifting platform. This equipment usually includes an electric tractor and a lifting platform. The electric tractor is responsible for moving the lifting platform to the designated position, and the lifting platform is responsible for lifting in the vertical direction to facilitate high-altitude operations or material handling.

[0003] When the existing tractor electric lifting equipment is towed by a tractor, when the road surface is designed in a stepped design, the equipment is loaded with large and heavy materials, which hinders the movement of the equipment, and it will bring a great burden to rely on manual assistance to lift it; since the existing lifting equipment is usually an integrated design, when the equipment is equipped with material loading mechanisms of different specifications, different models of lifting equipment need to be replaced, which increases the work intensity and use cost, and is not conducive to the efficient and stable transfer of materials. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the present invention provides a modularly designed electric lifting device for a tractor and a method for using the same, which solves the problem that when the existing equipment is in the process of driving, when the road surface is in a stepped design, the equipment is loaded with large and heavy materials, which hinders the movement of the equipment. Since the existing lifting equipment is usually an integrated design, when material loading mechanisms of different specifications are installed on the equipment, different types of lifting equipment need to be replaced, which increases the work intensity and the use cost.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a modularly designed electric lifting device for a tractor comprises a chassis frame, a mounting box is provided in the chassis frame, an electric control box is installed in the mounting box, a supporting assembly is provided above the chassis frame, an adjusting assembly is installed between the supporting assembly and the chassis frame, a concave hole is provided on one side of the chassis frame, a plug plate is fixed on the other side of the chassis frame, a plurality of card slots are provided on the plug plate, the number of the chassis frames is two, a plug plate on one of the chassis frames is plugged into the concave hole, a locking assembly is installed in the concave hole, the bottom end of the locking assembly is carded in the card slot, moving assemblies are respectively installed on both sides of the bottom of the chassis frame, stabilizing assemblies are respectively installed on the front and rear sides of the chassis frame, a traction rod and a docking seat are respectively installed on the sides of the two chassis frames away from each other, and a plurality of lifting rings are fixed on the chassis frame.

[0006] As a further solution of the present invention: the support assembly includes a support platform, movable grooves are respectively opened on both sides of the support platform, a retaining frame is slidably connected in the movable groove, the cross-sectional shape of the movable groove is T-shaped, two insertion rods are fixed on one side of the support platform, and two insertion holes are opened on the other side of the support platform.

[0007] As a further solution of the present invention: the adjusting assembly includes a first support rod and a second support rod, the number of the first support rod and the second support rod are two and the middle parts are hinged by an axle rod, the top end of the first support rod and the bottom end of the second support rod are respectively installed with moving wheels, the opposite surface of the support assembly and the chassis frame and the positions corresponding to the moving wheels are respectively installed with slide rails, the moving wheels slide in the slide rails, an electric hydraulic rod is hinged between the two first support rods through a pin shaft, the bottom end of the electric hydraulic rod is hinged between the two second support rods through a pin shaft, the bottom end of the first support rod is hinged to the chassis frame through a pin shaft, and the top end of the second support rod is hinged to the bottom of the support assembly through a pin shaft.

[0008] As a further solution of the present invention: the locking assembly includes a connecting plate, three clamping rods are fixedly connected to the bottom of the connecting plate, the clamping rods are clamped in the clamping grooves on the plug plate, the cross-sectional shape of the clamping rods is L-shaped, a spring is connected to the outer sleeve of the clamping rod, the bottom end of the spring is fixed to the chassis frame, the top end of the spring is fixed to the bottom of the connecting plate, and a pull rod is fixed to the connecting plate.

[0009] As a further solution of the present invention: the moving component includes a roller shaft, which is installed at the bottom of the chassis frame, and ear plates are respectively installed at both ends of the roller shaft, and walking wheels are respectively installed at the three corners of the ear plates, and the angle between two adjacent walking wheels is one hundred and twenty degrees.

[0010] As a further solution of the present invention: the stabilizing component includes a folding shaft, one end of the folding shaft is hinged to one side of the chassis frame through a pin shaft, the other end of the folding shaft is threadedly connected to a screw rod, and a support leg is installed at the bottom end of the screw rod.

[0011] As a further solution of the present invention: two limit blocks are fixed on one side of the chassis frame, and a limit slot is provided on the other side of the chassis frame corresponding to the position of the limit block, and the limit block is matched with the limit slot.

[0012] A method for using a modularly designed electric lifting device for a tractor, the method comprising the following steps:

[0013] When the material loading mechanism is transferred, the material loading mechanism is placed on the support assembly, and the electric hydraulic rod in the support assembly is controlled to work so that it supports the two first support rods and the two second support rods, so that the first support rod and the second support rod can cross and move, and the moving wheels on the first support rod and the second support rod slide in the slide rail. Because the bottom end of the first support rod and the top end of the second support rod are respectively hinged under the chassis frame and the support assembly, the first support rod and the second support rod can raise and lower the height of the support platform to meet the material loading requirements at different heights.

[0014] When the device is moved by towing the traction rod, the moving assembly at the bottom of the chassis frame can roll on the ground, and the uppermost walking wheel in the moving assembly does not contact the ground. When the road surface is uneven and stepped, when one of the walking wheels in the moving assembly is blocked, the ear plate and the roller shaft are driven to rotate, so that the uppermost walking wheel contacts the high point of the ground. As the chassis frame continues to move, the two lower walking wheels are separated from the flat ground, and the chassis frame is supported by the upper walking wheels, so that the entire moving assembly can cross the stepped road surface, thereby improving the road surface adaptability of the device in special environments. When the device stops moving, the folding shaft is turned over so that the folding shaft can drive the screw rod and the legs to unfold, and the screw rod is turned to drive the legs to move down and contact the ground, which is used to level the base surface and stabilize the chassis frame during work. When not in use, the screw rod is turned over to drive the legs to move up, and then the screw rod is pushed to deflect, so that the legs are located under the chassis frame, so that the device can move;

[0015] When assembling multiple chassis frames, two limit blocks on one side of one chassis frame are inserted into the limit grooves on the other side of the other chassis frame, which play a role in limiting the two chassis frames. At the same time, the insertion rod can slide into the insertion hole to improve the stability of the connection between the two supporting components. When the two chassis frames are approaching each other, the insertion plate can be embedded in the concave hole and squeeze the locking component. Because the cross-sectional shape of the clamping rod in the locking component is T-shaped, when the insertion plate squeezes the arc surface position of the bottom end of the clamping rod, the clamping rod can drive the connecting plate to move up;

[0016] When the plug plate is completely embedded in the recessed hole and the chassis frame no longer moves, the connecting plate is pulled downward by the tension of the spring, so that the connecting plate drives the three clamping rods to move downward and engage in the clamping slots on the plug plate, thereby achieving the purpose of locking the plug plate, and then the two chassis frames and the two supporting assemblies can be connected. Therefore, when material loading mechanisms of different specifications are carried on the device, the size of the supporting surface of the device can be arbitrarily adjusted through a modular design. When separating multiple chassis frames, the pull rod is lifted up to drive the three clamping rods to move upward through the connecting plate until the bottom end of the clamping rod is out of the clamping slot on the plug plate, so that the locking state between the two chassis frames can be released, and then any one of the chassis frames can be pushed to separate them.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, when a plurality of chassis frames are combined, the two limit blocks on one side of one chassis frame are inserted into the limit grooves on the other side of the other chassis frame, which plays a role in limiting the two chassis frames. At the same time, the plug rod can slide into the plug hole, thereby improving the stability of the connection between the two support components. The plug plate can be embedded in the concave hole and squeeze the locking component. When the plug plate is completely embedded in the concave hole and the chassis frame no longer moves, the connecting plate is pulled downward by the tension of the spring, so that the connecting plate drives the three clamping rods to move downward and clamp into the clamping groove, thereby achieving the purpose of locking the plug plate, and then the two chassis frames and the two support components can be connected. Therefore, when material loading mechanisms of different specifications are carried on the device, the size of the support surface of the device can be arbitrarily adjusted through a modular design method, without the need to replace lifting equipment of different models, thereby reducing the work intensity and the use cost, and being conducive to the efficient and stable transfer of materials.

[0019] 2. In the present invention, when the device is moved by towing the traction rod, the moving assembly at the bottom of the chassis frame can roll on the ground, and the uppermost running wheel in the moving assembly does not contact the ground. When the road surface is uneven and stepped, when one of the running wheels in the moving assembly is blocked, the ear plate and the roller shaft are driven to rotate, so that the uppermost running wheel contacts the high point of the ground. As the chassis frame continues to move, the two lower running wheels leave the flat ground, and the chassis frame is propped up by the upper running wheels, so that the entire moving assembly can cross the stepped road surface, thereby improving the road surface adaptability of the device in special environments. When the device stops moving, the folding shaft is flipped so that the folding shaft can drive the screw rod and the legs to unfold, and the screw rod is rotated to drive the legs to move downward and contact the ground, which is used to level the base surface and stabilize the chassis frame during work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the chassis frame and the mobile assembly connected to each other in the present invention;

[0022] Figure 3 It is a structural schematic diagram of the connection between the adjustment component and the support component of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the combination of two chassis frames of the present invention;

[0024] Figure 5 It is a structural schematic diagram of a partial cross section of the chassis frame of the present invention;

[0025] Figure 6It is a structural schematic diagram of the locking assembly of the present invention;

[0026] In the figure: 1. chassis frame; 2. installation box; 3. electric control box; 4. support assembly; 401. support table; 402. moving groove; 403. stop frame; 404. plug rod; 405. socket; 5. adjustment assembly; 501. first support rod; 502. second support rod; 503. moving wheel; 504. electric hydraulic rod; 6. slide rail; 7. recessed hole; 8. plug plate; 9. slot; 10. locking assembly; 101. connecting plate; 102. plug rod; 103. spring; 104. pull rod; 11. limit block; 12. limit slot; 13. moving assembly; 131. roller; 132. ear plate; 133. walking wheel; 14. stabilizing assembly; 141. folding shaft; 142. screw rod; 143. outrigger; 15. traction rod; 16. docking seat; 17. lifting ring. DETAILED DESCRIPTION

[0027] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0028] like Figure 1-6 As shown, the present invention provides a technical solution: a modularly designed electric lifting device for a tractor, comprising a chassis frame 1, a mounting box 2 is arranged in the chassis frame 1, an electric control box 3 is installed in the mounting box 2, a support assembly 4 is arranged above the chassis frame 1, the support assembly 4 comprises a support platform 401, movable grooves 402 are respectively provided on both sides of the support platform 401, a retaining frame 403 is slidably connected in the movable groove 402, the cross-sectional shape of the movable groove 402 is T-shaped, two insertion rods 404 are fixed on one side of the support platform 401, and two insertion holes 405 are provided on the other side of the support platform 401, the retaining frame 403 can slide in the movable groove 402, so that the retaining frame 403 can be disassembled and assembled on the support platform 401 conveniently; the insertion rod 404 can slide into the insertion hole 405, so as to improve the stability of the connection between the two support assemblies 4;

[0029] An adjustment component 5 is installed between the support component 4 and the chassis frame 1, and the adjustment component 5 includes a first support rod 501 and a second support rod 502. The number of the first support rod 501 and the second support rod 502 is two and the middle part is hinged by an axis rod. The top end of the first support rod 501 and the bottom end of the second support rod 502 are respectively installed with a moving wheel 503. The opposite surface of the support component 4 and the chassis frame 1 and the position corresponding to the moving wheel 503 are respectively installed with a slide rail 6. The moving wheel 503 slides in the slide rail 6. The two first support rods 501 are hinged by a pin. The electric hydraulic rod 504, the bottom end of the electric hydraulic rod 504 is hinged between the two second support rods 502 through a pin shaft, the bottom end of the first support rod 501 is hinged on the chassis frame 1 through a pin shaft, and the top end of the second support rod 502 is hinged to the bottom of the support assembly 4 through a pin shaft. Because the bottom end of the first support rod 501 and the top end of the second support rod 502 are respectively hinged under the chassis frame 1 and the support assembly 4, the first support rod 501 and the second support rod 502 can lift the height of the support platform 401 to meet the material loading requirements at different heights;

[0030] A concave hole 7 is provided on one side of the chassis frame 1, and a plug plate 8 is fixed on the other side of the chassis frame 1. A plurality of card slots 9 are provided on the plug plate 8. Two limit blocks 11 are fixed on one side of the chassis frame 1, and a limit slot 12 is provided at the position corresponding to the limit block 11 on the other side of the chassis frame 1. The limit block 11 is adapted to the limit slot 12, and the limit block 11 is inserted into the limit slot 12 to limit the two chassis frames 1, thereby improving the stability of the assembly of the two chassis frames 1. There are two chassis frames 1, and the plug plate 8 on one of the chassis frames 1 is inserted into the concave hole 7. A locking assembly 10 is installed in the concave hole 7, and the bottom end of the locking assembly 10 is snapped into the card slot 9. The locking assembly 10 includes a connecting plate 101, and the bottom of the connecting plate 101 is fixed There are three fixed connections, and the card rod 102 is clamped in the card slot 9 on the plug board 8. The cross-sectional shape of the card rod 102 is L-shaped. A spring 103 is connected to the outer sleeve of the card rod 102. The bottom end of the spring 103 is fixed to the chassis frame 1, and the top of the spring 103 is fixed to the bottom of the connecting plate 101. A pull rod 104 is fixed to the connecting plate 101. The connecting plate 101 is pulled downward by the pulling force of the spring 103, so that the connecting plate 101 drives the three card rods 102 to move downward and clamp into the card slot 9, which is convenient for locking the plug board 8; the pull rod 104 is lifted up to drive the three card rods 102 to move upward through the connecting plate 101 until the bottom end of the card rod 102 is separated from the card slot 9 on the plug board 8, so as to release the locking state of the two chassis frames 1.

[0031] A moving assembly 13 is installed on both sides of the bottom of the chassis frame 1. The moving assembly 13 includes a roller shaft 131. The roller shaft 131 is installed at the bottom of the chassis frame 1. Ear plates 132 are installed at both ends of the roller shaft 131. Travel wheels 133 are installed at three corners in the ear plates 132. The angle between two adjacent travel wheels 133 is 120 degrees. When one of the travel wheels 133 is blocked, the ear plate 132 and the roller shaft 131 are driven to rotate, so that the uppermost travel wheel 133 contacts the high point of the ground. As the chassis frame 1 continues to move, the two lower travel wheels 133 are separated from the flat ground, and the chassis frame 1 is propped up by the upper travel wheel 133, so that the entire moving assembly 13 can cross the stepped road surface.

[0032] A stabilizing component 14 is respectively installed on the front and rear sides of the chassis frame 1, and a traction rod 15 and a docking seat 16 are respectively installed on the sides of the two chassis frames 1 that are away from each other. A number of lifting rings 17 are fixed on the chassis frame 1. The stabilizing component 14 includes a folding shaft 141, one end of the folding shaft 141 is hinged to one side of the chassis frame 1 through a pin shaft, and the other end of the folding shaft 141 is threadedly connected to a screw rod 142, and a support leg 143 is installed at the bottom end of the screw rod 142. By flipping the folding shaft 141, the folding shaft 141 can drive the screw rod 142 and the support leg 143 to unfold, and by rotating the screw rod 142, it drives the support leg 143 to move downward and contact with the ground, which is used to level the base surface and stabilize the chassis frame 1 during work.

[0033] A method for using a modularly designed electric lifting device for a tractor, the method comprising the following steps:

[0034] When the material loading mechanism is transferred, the material loading mechanism is placed on the support assembly 4, and the electric hydraulic rod 504 in the support assembly 4 is controlled to work so that it supports the two first support rods 501 and the two second support rods 502, so that the first support rod 501 and the second support rod 502 can cross and move, and the moving wheels 503 on the first support rod 501 and the second support rod 502 slide in the slide rail 6. Since the bottom end of the first support rod 501 and the top end of the second support rod 502 are respectively hinged under the chassis frame 1 and the support assembly 4, the first support rod 501 and the second support rod 502 can lift the height of the support platform 401 to meet the material loading requirements at different heights;

[0035] When the device is moved by towing the traction rod 15, the moving assembly 13 at the bottom of the chassis frame 1 can roll on the ground, and the uppermost running wheel 133 in the moving assembly 13 does not contact the ground. When the road surface is uneven and stepped, one of the running wheels 133 in the moving assembly 13 is blocked, and the ear plate 132 and the roller shaft 131 are driven to rotate, so that the uppermost running wheel 133 contacts the high point of the ground. As the chassis frame 1 continues to move, the two lower running wheels 133 are separated from the flat ground, and the chassis frame 1 is supported by the upper running wheels 133, so that the entire moving frame 1 can be lifted up. The moving assembly 13 can cross the stepped road surface, thereby improving the road surface adaptability of the device in special environments. When the device stops moving, the folding shaft 141 is turned over so that the folding shaft 141 can drive the screw rod 142 and the legs 143 to unfold, and the screw rod 142 is rotated to drive the legs 143 to move down and contact the ground, which is used to level the base surface and stabilize the chassis frame 1 during work. When not in use, the screw rod 142 is turned over to drive the legs 143 to move up, and then the screw rod 142 is pushed to deflect, so that the legs 143 are located below the chassis frame 1, so that the device can move;

[0036] When assembling multiple chassis frames 1, the two limiting blocks 11 on one side of one chassis frame 1 are inserted into the limiting grooves 12 on the other side of the other chassis frame 1, which play a role in limiting the two chassis frames 1. At the same time, the insertion rod 404 can slide into the insertion hole 405 to improve the stability of the connection between the two support components 4. When the two chassis frames 1 are approaching each other, the insertion plate 8 can be embedded in the concave hole 7 and squeeze the locking component 10. Because the cross-sectional shape of the clamping rod 102 in the locking component 10 is T-shaped, when the insertion plate 8 squeezes the arc surface position of the bottom end of the clamping rod 102, the clamping rod 102 can drive the connecting plate 101 to move upward;

[0037] When the plug plate 8 is fully embedded in the recessed hole 7 and the chassis frame 1 no longer moves, the connecting plate 101 is pulled downward by the pulling force of the spring 103, so that the connecting plate 101 drives the three clamping rods 102 to move downward and engage in the clamping grooves 9 on the plug plate 8, thereby achieving the purpose of locking the plug plate 8, and then the two chassis frames 1 and the two supporting assemblies 4 can be connected. Therefore, when material loading mechanisms of different specifications are carried on the device, the size of the supporting surface of the device can be arbitrarily adjusted through a modular design. When separating multiple chassis frames 1, the pull rod 104 is lifted up to drive the three clamping rods 102 to move upward through the connecting plate 101 until the bottom end of the clamping rod 102 is out of the clamping groove 9 on the plug plate 8, so that the locking state between the two chassis frames 1 can be released, and then any one of the chassis frames 1 can be pushed to separate them.

[0038] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

Claims

1. A modularly designed electric lifting device for a tractor, comprising a chassis frame (1), characterized in that: The chassis frame (1) is provided with an installation box (2), an electric control box (3) is installed in the installation box (2), a support assembly (4) is provided above the chassis frame (1), an adjustment assembly (5) is installed between the support assembly (4) and the chassis frame (1), a concave hole (7) is provided on one side of the chassis frame (1), an insert plate (8) is fixed on the other side of the chassis frame (1), a plurality of slots (9) are provided on the insert plate (8), the number of the chassis frames (1) is two, one of which is The insert plate (8) on the chassis frame (1) is inserted into the concave hole (7), a locking component (10) is installed in the concave hole (7), the bottom end of the locking component (10) is clamped in the clamping groove (9), moving components (13) are installed on both sides of the bottom of the chassis frame (1), and stabilizing components (14) are installed on the front and rear sides of the chassis frame (1), and a traction rod (15) and a docking seat (16) are installed on the sides of the two chassis frames (1) away from each other, and a plurality of lifting rings (17) are fixed on the chassis frame (1).

2. The modular electric lifting device for tractor according to claim 1 is characterized in that: The support assembly (4) comprises a support platform (401), movable grooves (402) are respectively provided on both sides of the support platform (401), a retaining frame (403) is slidably connected in the movable groove (402), the cross-sectional shape of the movable groove (402) is T-shaped, two insertion rods (404) are fixed on one side of the support platform (401), and two insertion holes (405) are provided on the other side of the support platform (401).

3. The modular electric lifting device for tractor according to claim 1 is characterized by: The adjustment assembly (5) comprises a first support rod (501) and a second support rod (502), the number of the first support rod (501) and the second support rod (502) being two and the middle parts being hinged by an axle rod, the top end of the first support rod (501) and the bottom end of the second support rod (502) being respectively provided with moving wheels (503), the opposite surfaces of the support assembly (4) and the chassis frame (1) and corresponding to the positions of the moving wheels (503) being respectively provided with slide rails (6), the moving wheels (503) sliding in the slide rails (6), an electric hydraulic rod (504) being hinged between the two first support rods (501) by a pin shaft, the bottom end of the electric hydraulic rod (504) being hinged between the two second support rods (502) by a pin shaft, the bottom end of the first support rod (501) being hinged to the chassis frame (1) by a pin shaft, and the top end of the second support rod (502) being hinged to the bottom of the support assembly (4) by a pin shaft.

4. The modular electric lifting device for tractor according to claim 1 is characterized by: The locking assembly (10) comprises a connecting plate (101), the bottom of which is fixedly connected with three clamping rods (102), the clamping rods (102) being clamped in clamping grooves (9) on the plug plate (8), the cross-sectional shape of the clamping rods (102) being L-shaped, the outer shell of the clamping rods (102) being connected with a spring (103), the bottom end of the spring (103) being fixed on the chassis frame (1), the top end of the spring (103) being fixed on the bottom of the connecting plate (101), and the connecting plate (101) being fixed with a pull rod (104).

5. The modular electric lifting device for tractor according to claim 1 is characterized by: The moving assembly (13) comprises a roller shaft (131), the roller shaft (131) is mounted at the bottom of the chassis frame (1), ear plates (132) are respectively mounted at both ends of the roller shaft (131), and running wheels (133) are respectively mounted at three corners inside the ear plates (132), and the angle between two adjacent running wheels (133) is one hundred and twenty degrees.

6. The modular electric lifting device for tractor according to claim 1, characterized in that: The stabilizing component (14) comprises a folding shaft (141), one end of the folding shaft (141) is hinged to one side of the chassis frame (1) via a pin, the other end of the folding shaft (141) is threadedly connected to a screw rod (142), and a support leg (143) is installed at the bottom end of the screw rod (142).

7. The modular electric lifting device for tractor according to claim 1 is characterized by: Two limit blocks (11) are fixed on one side of the chassis frame (1), and a limit slot (12) is provided on the other side of the chassis frame (1) at a position corresponding to the limit block (11), and the limit block (11) is adapted to the limit slot (12).

8. A method for using a modular electric lifting device for a tractor, according to any one of claims 1 to 7, characterized in that: The method of use comprises the following steps: When the material loading mechanism is transferred, the material loading mechanism is placed on the support assembly (4), and the electric hydraulic rod (504) in the support assembly (4) is controlled to work so that it supports the two first support rods (501) and the two second support rods (502), so that the first support rod (501) and the second support rod (502) can cross and move, and the moving wheels (503) on the first support rod (501) and the second support rod (502) slide in the slide rail (6). Since the bottom end of the first support rod (501) and the top end of the second support rod (502) are respectively hinged to the chassis frame (1) and the support assembly (4), the first support rod (501) and the second support rod (502) can raise and lower the height of the support platform (401) to meet the material loading requirements at different heights; When the device is pulled to move by the traction rod (15), the moving assembly (13) at the bottom of the chassis frame (1) can roll on the ground, and the uppermost running wheel (133) in the moving assembly (13) does not contact the ground. When the road surface is uneven and stepped, when one of the running wheels (133) in the moving assembly (13) is blocked, the ear plate (132) and the roller shaft (131) are driven to rotate, so that the uppermost running wheel (133) contacts the high point of the ground. As the chassis frame (1) continues to move, the two lower running wheels (133) are separated from the flat ground, and the chassis frame (1) is supported by the upper running wheels (133), so that the entire chassis frame (1) is supported. The moving assembly (13) can cross a stepped road surface, thereby improving the road surface adaptability of the device in a special environment. When the device stops moving, the folding shaft (141) is turned over so that the folding shaft (141) can drive the screw rod (142) and the legs (143) to unfold. The screw rod (142) is rotated to drive the legs (143) to move downward and contact the ground, which is used to level the base surface and stabilize the chassis frame (1) when working. When not in use, the screw rod (142) is turned over so that it drives the legs (143) to move upward, and then the screw rod (142) is pushed to deflect so that the legs (143) are located below the chassis frame (1) so that the device can move. When assembling a plurality of chassis frames (1), two limiting blocks (11) on one side of one chassis frame (1) are inserted into the limiting grooves (12) on the other side of the other chassis frame (1), thereby limiting the two chassis frames (1). At the same time, the insertion rod (404) can slide into the insertion hole (405), thereby improving the stability of the connection between the two support components (4). When the two chassis frames (1) are brought closer to each other, the insertion plate (8) can be inserted into the recessed hole (7) and squeeze the locking component (10). Since the cross-sectional shape of the clamping rod (102) in the locking component (10) is T-shaped, when the insertion plate (8) squeezes the arc surface position of the bottom end of the clamping rod (102), the clamping rod (102) can drive the connecting plate (101) to move upward. When the plug plate (8) is completely embedded in the concave hole (7) and the chassis frame (1) no longer moves, the connecting plate (101) is pulled downward by the pulling force of the spring (103), so that the connecting plate (101) drives the three clamping rods (102) to move downward and clamp into the clamping groove (9) on the plug plate (8), thereby achieving the purpose of locking the plug plate (8), and then the two chassis frames (1) and the two supporting assemblies (4) can be connected. Therefore, when material loading mechanisms of different specifications are installed on the device, the size of the device support surface can be adjusted arbitrarily through a modular design. When separating multiple chassis frames (1), the pull rod (104) is lifted up to drive the three clamping rods (102) to move upward through the connecting plate (101) until the bottom end of the clamping rod (102) is separated from the clamping groove (9) on the plug plate (8), so that the locking state between the two chassis frames (1) can be released, and then any one of the chassis frames (1) can be pushed to separate.

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