Battery replacement chassis assembly of electric tractor

Abstract

The invention discloses an electric tractor battery replacement chassis assembly, and relates to the field of agricultural equipment.The electric tractor battery replacement chassis assembly comprises an electric tractor main body, a battery containing frame is fixedly connected to the electric tractor main body, a plurality of mounting grooves are formed in the battery containing frame, and first transmission racks are slidably connected into the mounting grooves; according to the battery replacement chassis assembly of the electric tractor, a new battery box needing to be replaced is placed on the lifting mechanism, then a battery needing to be replaced is pushed to the lifting mechanism through cooperation of the temporary storage mechanism, and then the battery needing to be replaced is placed on the lifting mechanism through cooperation of the lifting mechanism. The battery box is automatically lifted to the battery placing frame through the cooperation of the self weight of a battery and the balancing weight, and then the battery box is placed on the placing plate to be fixed in cooperation with the temporary storage mechanism, so that portable replacement of the battery box on the electric tractor is achieved, the replacement cost is saved, and meanwhile a user can conveniently use the battery box.

Description

Technical Field

[0001] The present invention relates to the technology of agricultural equipment, and specifically to an electric tractor battery swapping chassis assembly. Background Art

[0002] Electric tractors are the development direction of agricultural tractors. Moreover, a large part of the tractor operations are high-power operations with high energy consumption. However, the existing electric tractors have insufficient endurance and continuous operation ability under heavy loads, and it is necessary to replace the battery box during the operation to achieve battery swapping to improve the endurance of the electric tractor.

[0003] Chinese Patent with Application No. 202210491424.7 discloses a battery-swappable electric tractor, which includes a frame, and the frame is provided with an openable hood; a battery box, the battery box is arranged in the hood, the battery box includes a box body and a battery cell module, a power distribution module and a control module arranged inside the box body, the ports of the power distribution module and the control module are all arranged on the outer surface of the box body, a charging socket is arranged on the outer surface of the box body, the charging socket is electrically connected to the power distribution module, a handle part is arranged on the outer surface of the box body, and a first buckle unit is arranged at the bottom of the box body. The frame is provided with a second buckle unit matching the first buckle unit. The electric tractor can complete battery swapping and continue to be put into work. The whole process is simple and fast, enhancing the continuous working ability of the electric tractor. However, there are still some deficiencies when this patent is implemented. When the battery box is replaced, due to the large mass of the battery box, a forklift or a lifting device is required to lift the battery box onto the tractor frame for fixing during replacement, resulting in a large replacement cost and the need for the user to be able to use the lifting device, causing inconvenience in replacing the battery box. Summary of the Invention

[0004] The purpose of the present invention is to provide an electric tractor battery swapping chassis assembly to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An electric tractor battery swapping chassis assembly, including an electric tractor main body, a battery placement rack is fixedly connected to the electric tractor main body, a plurality of installation slots are opened in the battery placement rack, a first transmission rack is slidably connected in the installation slot, a placement plate is fixedly connected to the bottom of the first transmission rack, a first transmission gear is meshed and connected to one side of the first transmission rack, a ratchet mechanism is slidably sleeved in the middle of the first transmission gear, and a first transmission shaft rotatably connected to the battery placement rack is fixedly sleeved in the middle of the ratchet mechanism;

[0006] The outer surface of the first transmission shaft is drivingly connected to a lifting mechanism connected to the battery placement rack, and the lifting mechanism is used to drive the battery box to lift and lower.

[0007] Further, the lifting mechanism includes a second transmission gear fixedly sleeved on the first transmission shaft. The outer surface of the second transmission gear is drivingly connected to a third transmission gear through a transmission chain. A second transmission shaft rotatably connected to the installation groove is fixedly sleeved in the middle of the third transmission gear. A fourth transmission gear is fixedly sleeved on the outer surface of the second transmission shaft. A second transmission rack slidably connected to the installation groove is fixedly sleeved on the outer surface of the fourth transmission gear. The bottom of the second transmission rack is fixedly connected to a lifting plate through a connecting plate;

[0008] A buffer mechanism is arranged between multiple second transmission racks. The buffer mechanism is used to buffer the battery box. A caching mechanism is arranged in the battery placement rack. The caching mechanism is used to cache the lifted battery box.

[0009] Further, the caching mechanism includes a caching inclined plate fixedly connected to the battery placement rack. Transmission grooves are formed on both the front and rear sides of the battery box. A first spring is fixedly connected in the transmission groove. One end of the first spring is fixedly connected to a fixed iron column slidably connected to the transmission groove. A first fixing groove is formed in the battery placement rack. A first electromagnet block is fixedly connected in the first fixing groove.

[0010] Further, the buffer mechanism includes a buffer plate fixedly connected to the second transmission rack. A plurality of shock-absorbing piston rods are fixedly connected to the top of the buffer plate. The top end of the shock-absorbing piston rod is fixedly connected to a buffer iron block. A second spring fixedly sleeved with the buffer iron block is fixedly sleeved on the outer surface of the shock-absorbing piston rod. A second fixing groove is formed at the bottom of the battery placement rack. A second electromagnet block is fixedly connected in the second fixing groove.

[0011] Further, threaded holes are formed on both the front and rear sides of the battery box. Fixed blocks are fixedly connected to both the placement plate and the lifting plate. Fixing bolts threadedly connected to the threaded holes are threadedly connected to the fixed blocks.

[0012] Further, sliding grooves are formed on one side of both the first transmission rack and the second transmission rack. Slide rails slidably connected to the sliding grooves are fixedly connected in the installation groove.

[0013] Further, the ratchet mechanism includes a transmission ring fixedly connected to the first transmission shaft. The transmission ring is slidably connected to the inner surface of the first transmission gear. A plurality of ratchet teeth are rotatably connected to the outer surface of the transmission ring. A shrapnel fixedly connected to the transmission ring is fixedly connected to one side of the ratchet tooth. A plurality of ratchet tooth grooves slidably connected to the ratchet teeth are formed in the inner surface of the first transmission gear.

[0014] Further, a plurality of rollers are rotatably connected to the bottom of the battery box (8).

[0015] Compared with the prior art, the electric tractor battery swapping chassis assembly provided by the present invention has the following beneficial effects:

[0016] (1) By placing the new battery box to be replaced on the lifting mechanism, and then through the cooperation of the buffer mechanism, the battery to be replaced is pushed onto the lifting mechanism. Subsequently, through the cooperation of the lifting mechanism, using the self-weight of the battery and the cooperation of the counterweight, the battery box is automatically lifted onto the battery placement rack. Then, in cooperation with the buffer mechanism, the battery box is placed on the placement plate for fixation, thereby realizing the portable replacement of the battery box on the electric tractor, saving the replacement cost, and also facilitating the use by the operators.

[0017] (2) When the new battery box is replaced on the lifting mechanism of the battery placement rack, then through the cooperation of the transmission mechanism and the ratchet mechanism on the lifting mechanism, when the replaced battery box encounters bumps on the tractor, it is transmitted to the buffer mechanism through the transmission mechanism. Subsequently, the shock-absorbing piston rod on the buffer mechanism expands and contracts for shock absorption, thereby realizing the buffering and shock absorption of the battery box on the tractor, reducing the damage of vibration to the battery box, and improving the protection of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional external structure diagram of the present invention;

[0020] Figure 2 It is a first three-dimensional internal structure diagram of the present invention;

[0021] Figure 3 It is a second three-dimensional internal structure diagram of the present invention;

[0022] Figure 4 It is a side view of the internal structure of the battery placement rack of the present invention;

[0023] Figure 5 It is a side view of the internal structure of the battery box of the present invention;

[0024] Figure 6 It is a front view of the internal structure of the ratchet mechanism of the present invention;

[0025] Figure 7 For the present invention Figure 3Enlarged view of A

[0026] Description of reference numerals in the drawings:

[0027] 1. Electric tractor main body; 2. Battery placement rack; 3. Installation groove; 4. First transmission rack; 5. Placement plate; 6. First transmission gear; 7. First transmission shaft; 8. Battery box; 11. Second transmission gear; 12. Transmission chain; 13. Third transmission gear; 14. Second transmission shaft; 15. Fourth transmission gear; 16. Second transmission rack; 17. Lifting plate; 18. Fixed block; 19. Fixed bolt; 21. Buffer inclined plate; 22. Transmission groove; 23. First spring; 24. Fixed iron column; 25. First fixed groove; 26. First electromagnet block; 31. Buffer plate; 32. Shock-absorbing piston rod; 33. Buffer iron block; 34. Second spring; 35. Second fixed groove; 36. Second electromagnet block; 41. Transmission ring; 42. Ratchet tooth; 43. Elastic piece; 44. Ratchet tooth groove. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1

[0030] Please refer to Figures 1 to 7 , the battery swapping chassis assembly of the electric tractor, including the electric tractor main body 1, a battery placement rack 2 is fixedly connected to the electric tractor main body 1, a plurality of installation grooves 3 are opened on the battery placement rack 2, a first transmission rack 4 is slidably connected in the installation groove 3, a placement plate 5 is fixedly connected to the bottom of the first transmission rack 4, a first transmission gear 6 is meshed and connected to one side of the first transmission rack 4, a ratchet mechanism is slidably sleeved in the middle of the first transmission gear 6, and a first transmission shaft 7 rotatably connected to the battery placement rack 2 is fixedly sleeved in the middle of the ratchet mechanism;

[0031] A lifting mechanism is drivingly connected to the outer surface of the first transmission shaft 7 and is used to drive the battery box 8 to lift.

[0032] The lifting mechanism includes a second transmission gear 11 fixedly sleeved on the first transmission shaft 7, a third transmission gear 13 is drivingly connected to the outer surface of the second transmission gear 11 through a transmission chain 12, a second transmission shaft 14 rotatably connected to the installation groove 3 is fixedly sleeved in the middle of the third transmission gear 13, a fourth transmission gear 15 is fixedly sleeved on the outer surface of the second transmission shaft 14, a second transmission rack 16 slidably connected to the installation groove 3 is fixedly sleeved on the outer surface of the fourth transmission gear 15, and a lifting plate 17 is fixedly connected to the bottom of the second transmission rack 16 through a connecting plate;

[0033] A buffer mechanism is provided between multiple second transmission racks 16. The buffer mechanism is used to buffer the battery box 8. A caching mechanism is provided inside the battery placement rack 2. The caching mechanism is used to cache the lifted battery box 8.

[0034] The caching mechanism includes a caching inclined plate 21 fixedly connected to the battery placement rack 2. Transmission grooves 22 are provided on both the front and rear sides of the battery box 8. A first spring 23 is fixedly connected inside the transmission groove 22. One end of the first spring 23 is fixedly connected to a fixed iron pillar 24 that is slidably connected to the transmission groove 22. A first fixing groove 25 is provided inside the battery placement rack 2, and a first electromagnet block 26 is fixedly connected inside the first fixing groove 25.

[0035] The buffer mechanism includes a buffer plate 31 fixedly connected to the second transmission rack 16. A plurality of shock-absorbing piston rods 32 are fixedly connected to the top of the buffer plate 31. The top end of the shock-absorbing piston rod 32 is fixedly connected to a buffer iron block 33. A second spring 34 that is fixedly sleeved with the buffer iron block 33 is fixedly sleeved on the outer surface of the shock-absorbing piston rod 32. A second fixing groove 35 is provided at the bottom of the battery placement rack 2, and a second electromagnet block 36 is fixedly connected inside the second fixing groove 35.

[0036] Threaded holes are provided on both the front and rear sides of the battery box 8. Fixed blocks 18 are fixedly connected to both the placement plate 5 and the lifting plate 17. A fixing bolt 19 that is threadedly connected to the threaded hole is threadedly connected to the fixed block 18. By rotating the fixing bolt 19 on the fixed block 18 into the threaded hole on the battery box 8, the battery box 8 placed on the placement plate 5 and the lifting plate 17 is fixed.

[0037] Chute grooves are provided on one side of both the first transmission rack 4 and the second transmission rack 16. Slide rails that are slidably connected to the chute grooves are fixedly connected inside the installation groove 3.

[0038] The ratchet mechanism includes a transmission ring 41 fixedly connected to the first transmission shaft 7. The transmission ring 41 is slidably connected to the inner surface of the first transmission gear 6. A plurality of ratchet teeth 42 are rotatably connected to the outer surface of the transmission ring 41. A spring piece 43 that is fixedly connected to the transmission ring 41 is fixedly connected to one side of the ratchet tooth 42. A plurality of ratchet grooves 44 that are slidably connected to the ratchet teeth 42 are provided on the inner surface of the first transmission gear 6. Through the cooperation of the ratchet teeth 42 and the ratchet grooves 44, the first transmission gear 6 can only drive the transmission ring 41 and the first transmission shaft 7 to rotate in one direction.

[0039] A plurality of rollers are rotatably connected to the bottom of the battery box 8. The rollers facilitate the movement of the battery box 8.

[0040] When the battery box 8 needs to be replaced, at this time, the battery box 8 is pushed onto the buffer plate 31. Subsequently, the first electromagnet block 26 is electrified, and the first electromagnet block 26 adsorbs the fixed iron column 24 in the driving groove 22 of the battery box 8, inserts the fixed iron column 24 into the first fixing groove 25 on the battery placement rack 2, and fixes the battery box 8. Subsequently, a counterweight of a certain weight is placed on the lifting plate 17, driving the lifting plate 17 and the second transmission rack 16 to move downward. At this time, the second transmission rack 16 drives the fourth transmission gear 15 and the second transmission shaft 14 to rotate. The second transmission shaft 14 drives the first transmission shaft 7 to rotate through the third transmission gear 13, the transmission chain 12, and the second transmission gear 11. Due to the ratchet mechanism provided on the first transmission shaft 7, the first transmission gear 6 will not be driven to rotate. Subsequently, the newly replaced battery box 8 is pushed onto the lifting plate 17, and the counterweight is removed. Subsequently, the battery box 8 on the buffer inclined plate 21 is pushed onto the placement plate 5, and the counterweight is placed on the placement plate 5. The weight of the counterweight offsets the frictional force during the transmission process. At this time, the placement plate 5 starts to move downward. The placement plate 5 drives the first transmission rack 4 to move downward. The first transmission rack 4 drives the first transmission gear 6 to rotate. The first transmission gear 6 drives the first transmission shaft 7 to rotate through the ratchet mechanism. The first transmission shaft 7 drives the third transmission gear 13 and the second transmission shaft 14 to rotate through the second transmission gear 11 and the transmission chain 12. The second transmission shaft 14 drives the fourth transmission gear 15 to drive the second transmission rack 16 to move downward. The second transmission rack 16 drives the lifting plate 17 to move upward, automatically lifting the newly replaced battery box 8 upward. At the same time, the second electromagnet block 36 in the second fixing groove 35 at the bottom of the battery placement rack 2 adsorbs the column buffer iron block 33, fixing the shock-absorbing piston rod 32, the buffer plate 31, and the lifting plate 17. Subsequently, the lifted battery box 8 is pushed onto the buffer inclined plate 21 for fixing. Subsequently, the battery box 8 and the counterweight on the placement plate 5 are removed. Subsequently, the placement plate 5 is pushed upward to push it to the top of the battery placement rack 2. Due to the cooperation of the ratchet mechanism, at this time, the first transmission rack 4 drives the first transmission gear 6 to rotate, but the first transmission gear 6 will not drive the first transmission shaft 7 to rotate. When it moves to the top, at this time, the placement plate 5 drives the first transmission rack 4 to move downward under the action of gravity, but the first transmission rack 4 drives the first transmission gear 6 to rotate. The first transmission gear 6 drives the first transmission shaft 7 to rotate through the ratchet mechanism. The first transmission shaft 7 drives the second transmission shaft 14 to rotate through the transmission gear and the transmission chain 12. The second transmission shaft 14 drives the fourth transmission gear 15 and the second transmission rack 16 to move upward. At this time, the buffer mechanism on the bottom lifting plate 17 of the second transmission rack 16 abuts against the battery placement rack 2, making the second transmission rack 16 unable to move upward, so that the placement plate 5 is stabilized at the bottom of the battery placement rack 2. Subsequently, the battery box 8 on the buffer plate 31 is pushed onto the placement plate 5,Subsequently, it is fixed by the fixing bolts 19 on the placement plate 5, so as to realize the portable replacement of the battery box 8.

[0041] Embodiment 2

[0042] On the basis of Embodiment 1, please refer to Figure 3 and Figure 7 As shown, after fixation, when the tractor jolts during use, when the battery box 8 and the placement plate 5 move downward, the first transmission rack 4 is driven to move downward. Subsequently, the second transmission rack 16 is driven to move upward through the transmission mechanism. At this time, the second transmission rack 16 drives the buffer plate 31 to move upward. At this time, the buffer plate 31 drives the shock-absorbing piston rod 32 to move upward, and the shock-absorbing piston rod 32 and the second spring 34 are compressed for shock absorption, so as to realize the shock absorption of the battery box 8 on the battery placement rack 2, reduce the damage of vibration to the battery box 8, and improve the protection of the battery box 8.

[0043] Working principle: When in use, when the battery box 8 needs to be replaced, the battery box 8 is pushed onto the buffer plate 31. Then, the first electromagnet block 26 is energized, and the first electromagnet block 26 adsorbs the fixed iron column 24 in the transmission groove 22 of the battery box 8, inserts the fixed iron column 24 into the first fixed groove 25 on the battery placement rack 2, and fixes the battery box 8. Subsequently, a counterweight of a certain weight is placed on the lifting plate 17, driving the lifting plate 17 and the second transmission rack 16 to move downward. At this time, the second transmission rack 16 drives the fourth transmission gear 15 and the second transmission shaft 14 to rotate. The second transmission shaft 14 drives the first transmission shaft 7 to rotate through the third transmission gear 13, the transmission chain 12, and the second transmission gear 11. Due to the ratchet mechanism provided on the first transmission shaft 7, the first transmission gear 6 will not be driven to rotate. Then, the newly replaced battery box 8 is pushed onto the lifting plate 17, and the counterweight is removed. Subsequently, the battery box 8 on the buffer inclined plate 21 is pushed onto the placement plate 5, and the counterweight is placed on the placement plate 5. The weight of the counterweight offsets the frictional force during the transmission process. At this time, the placement plate 5 starts to move downward. The placement plate 5 drives the first transmission rack 4 to move downward. The first transmission rack 4 drives the first transmission gear 6 to rotate. The first transmission gear 6 drives the first transmission shaft 7 to rotate through the ratchet mechanism. The first transmission shaft 7 drives the third transmission gear 13 and the second transmission shaft 14 to rotate through the second transmission gear 11 and the transmission chain 12. The second transmission shaft 14 drives the fourth transmission gear 15 to drive the second transmission rack 16 to move downward. The second transmission rack 16 drives the lifting plate 17 to move upward, automatically lifting the newly replaced battery box 8 upward. At the same time, the second electromagnet block 36 in the second fixed groove 35 at the bottom of the battery placement rack 2 adsorbs the buffer iron block 33, fixing the shock-absorbing piston rod 32, the buffer plate 31, and the lifting plate 17. Subsequently, the lifted battery box 8 is pushed onto the buffer inclined plate 21 for fixation. Then, the battery box 8 and the counterweight on the placement plate 5 are removed. Subsequently, the placement plate 5 is pushed upward to push it to the top of the battery placement rack 2. Due to the cooperation of the ratchet mechanism, at this time, the first transmission rack 4 drives the first transmission gear 6 to rotate, but the first transmission gear 6 will not drive the first transmission shaft 7 to rotate. When it moves to the top, at this time, the placement plate 5 drives the first transmission rack 4 to move downward under the action of gravity, but the first transmission rack 4 drives the first transmission gear 6 to rotate. The first transmission gear 6 drives the first transmission shaft 7 to rotate through the ratchet mechanism. The first transmission shaft 7 drives the second transmission shaft 14 to rotate through the transmission gear and the transmission chain 12. The second transmission shaft 14 drives the fourth transmission gear 15 and the second transmission rack 16 to move upward. At this time, the buffer mechanism on the bottom of the second transmission rack 16 on the lifting plate 17 abuts against the battery placement rack 2, preventing the second transmission rack 16 from moving upward, so that the placement plate 5 is stable at the bottom of the battery placement rack 2. Subsequently, the battery box 8 on the buffer plate 31 is pushed onto the placement plate 5,Subsequently, it is fixed by the fixing bolts 19 on the placement plate 5, thereby realizing the portable replacement of the battery box 8.

[0044] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Electric tractor battery swapping chassis assembly, characterized in that, Including: An electric tractor body (1), on which a battery placement rack (2) is fixedly connected. A plurality of installation slots (3) are provided on the battery placement rack (2). A first transmission rack (4) is slidably connected in the installation slot (3). A placement plate (5) is fixedly connected to the bottom of the first transmission rack (4). A first transmission gear (6) is meshed and connected to one side of the first transmission rack (4). A ratchet mechanism is slidably sleeved in the middle of the first transmission gear (6). A first transmission shaft (7) rotatably connected to the battery placement rack (2) is fixedly sleeved in the middle of the ratchet mechanism. A lifting mechanism connected to the battery placement rack (2) is drivingly connected to the outer surface of the first transmission shaft (7). The lifting mechanism is used to drive the battery box (8) to lift and lower.

2. The electric tractor battery swapping chassis assembly according to claim 1, wherein, The lifting mechanism includes a second transmission gear (11) fixedly sleeved on the first transmission shaft (7). A third transmission gear (13) is drivingly connected to the outer surface of the second transmission gear (11) through a transmission chain (12). A second transmission shaft (14) rotatably connected to the installation slot (3) is fixedly sleeved in the middle of the third transmission gear (13). A fourth transmission gear (15) is fixedly sleeved on the outer surface of the second transmission shaft (14). A second transmission rack (16) slidably connected to the installation slot (3) is fixedly sleeved on the outer surface of the fourth transmission gear (15). A lifting plate (17) is fixedly connected to the bottom of the second transmission rack (16) through a connecting plate. A buffer mechanism is provided between the plurality of second transmission racks (16). The buffer mechanism is used to buffer the battery box (8). A caching mechanism is provided in the battery placement rack (2). The caching mechanism is used to cache the lifted battery box (8).

3. The electric tractor battery swapping chassis assembly according to claim 2, wherein, The caching mechanism includes a caching inclined plate (21) fixedly connected to the battery placement rack (2). Transmission slots (22) are provided on both the front and rear sides of the battery box (8). A first spring (23) is fixedly connected in the transmission slot (22). A fixed iron column (24) slidably connected to the transmission slot (22) is fixedly connected to one end of the first spring (23). A first fixed slot (25) is provided in the battery placement rack (2). A first electromagnet block (26) is fixedly connected in the first fixed slot (25).

4. The electric tractor battery swapping chassis assembly according to claim 2, wherein, The buffer mechanism includes a buffer plate (31) fixedly connected to the second transmission rack (16). A plurality of shock-absorbing piston rods (32) are fixedly connected to the top of the buffer plate (31). A buffer iron block (33) is fixedly connected to the top end of the shock-absorbing piston rod (32). A second spring (34) fixedly sleeved on the outer surface of the shock-absorbing piston rod (32) and fixedly sleeved on the buffer iron block (33) is provided. A second fixed slot (35) is provided at the bottom of the battery placement rack (2). A second electromagnet block (36) is fixedly connected in the second fixed slot (35).

5. The electric tractor battery swapping chassis assembly according to claim 1, characterized in that Threaded holes are formed on both the front and rear sides of the battery box (8). Fixed blocks (18) are fixedly connected to both the placement plate (5) and the lifting plate (17). A fixing bolt (19) that is threadedly connected to the threaded hole is threadedly connected to the fixed block (18).

6. The electric tractor battery swapping chassis assembly according to claim 1, wherein, Chute grooves are formed on one side of both the first transmission rack (4) and the second transmission rack (16). Slide rails that are slidably connected to the chute grooves are fixedly connected inside the installation groove (3).

7. The electric tractor battery swapping chassis assembly according to claim 1, characterized in that, The ratchet mechanism includes a transmission ring (41) fixedly connected to the first transmission shaft (7). The transmission ring (41) is slidably connected to the inner surface of the first transmission gear (6). A plurality of ratchet teeth (42) are rotatably connected to the outer surface of the transmission ring (41). A shrapnel (43) fixedly connected to the transmission ring (41) is fixedly connected to one side of the ratchet teeth (42). A plurality of ratchet slots (44) slidably connected to the ratchet teeth (42) are formed on the inner surface of the first transmission gear (6).

8. The electric tractor battery swapping chassis assembly according to claim 1, wherein, A plurality of rollers are rotatably connected to the bottom of the battery box (8).

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