Device and method for adjusting the battery position of an electric tractor to adjust the center of gravity of the entire vehicle

Abstract

The invention discloses a device and method for adjusting the battery position of an electric tractor and adjusting the center of gravity of a whole vehicle. The device and method comprise a mounting frame on a vehicle frame and a battery bracket. The upper surface of the mounting frame on the vehicle frame is provided with a body slideway and a battery slideway. The battery slideway is provided with a battery bracket. A battery is provided in the battery bracket. A fastening oil cylinder is provided at one end of the lower surface of the battery bracket. A fastening oil cylinder positioning shaft is provided at the other end of the lower surface of the battery bracket. The fastening oil cylinder positioning shaft is connected to the mounting frame on the vehicle frame. The device and method for adjusting the battery position of an electric tractor and adjusting the center of gravity of a whole vehicle can adjust the position of the battery through the action of the hydraulic cylinder, thereby balancing the front and rear loads of the whole vehicle, thereby preventing the occurrence of the head tilting phenomenon. At the same time, the device can continuously adjust the displacement of the battery to provide more accurate center of gravity adjustment.

Description

Technical Field

[0001] The invention relates to the technical field of electric tractors, and in particular to a device and method for adjusting the battery position of an electric tractor and the center of gravity of the entire vehicle. Background Art

[0002] my country is a large agricultural country. The fundamental way out for agriculture lies in mechanization. With the rapid development of China's industry and agriculture in recent years, my country's agricultural machinery has also achieved great development, and one of the most important agricultural machinery is the tractor. However, with the reduction of traditional energy and the increasing severity of air pollution, the use of traditional fuel tractors has begun to suffer a huge impact. It is urgent to seek new environmentally friendly energy for tractors, so electric tractors came into being. However, due to the limitations of tractor operating conditions, when the tractor is not hanging the implement, the load ratio of its front and rear axles is approximately 4:6. When hanging the implement or going uphill, in order to ensure the maneuverability and usability of the tractor, the load ratio of its front and rear axles is not less than 2:8. Therefore, when the tractor is in use, a counterweight will be added to the front of the tractor to ensure that the tractor will not tilt due to the hanging implement or going uphill. However, the working environment of the tractor is basically in the field, and the counterweight block is heavy, which is extremely inconvenient to disassemble and reweight in the field. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a device and method for adjusting the battery position of an electric tractor to adjust the center of gravity of the whole vehicle. The position of the center of gravity of the whole vehicle is adjusted by adjusting the front and rear positions of the electric tractor battery, thereby avoiding the occurrence of the nose-lift phenomenon caused by uneven front and rear loads when the tractor is working or going uphill, and at the same time effectively avoiding the trouble of removing the counterweight, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a method for adjusting the battery position of an electric tractor to adjust the center of gravity of the entire vehicle,

[0005] S1: The front axle load sensor detects the load on the tractor's front axle in real time;

[0006] S2: If the front axle load sensor detects that the load on the front axle is less than 20% of the vehicle mass, then go to step S3; if the front axle load sensor detects that the load on the front axle is greater than 40% of the vehicle mass, then go to step S4; if the front axle load sensor detects that the load on the front axle is between 20% and 40%, then go to step S5;

[0007] S3: The front axle load sensor transmits a signal indicating that the battery is moving forward to the battery adjustment controller. Under the action of the battery adjustment controller, the battery position is adjusted to move the battery forward, thereby adjusting the center of gravity of the electric tractor. If the front axle load sensor detects that the load on the front axle of the tractor is still less than 20% of the vehicle mass, step S3 is repeated until the tractor runs smoothly.

[0008] S4: The front axle load sensor transmits a signal indicating that the battery is moving backward to the battery adjustment controller. Under the action of the battery adjustment controller, the battery position is adjusted to move the battery backward, thereby adjusting the center of gravity of the electric tractor. If the front axle load sensor detects that the load on the front axle of the tractor is still higher than 40% of the vehicle mass, step S4 is repeated until the tractor runs smoothly.

[0009] S5: The front axle load sensor stops sending signals to the battery adjustment controller and instead sends the front axle load data to the display operation controller. The driver decides to move the tractor battery forward or backward according to the tractor's driving status, and the driver gives a signal on the display operation controller to move the electric tractor battery forward or backward.

[0010] A device for adjusting the battery position of an electric tractor and the center of gravity of the whole vehicle comprises a mounting frame on a vehicle frame and a battery bracket, wherein the upper surface of the mounting frame on the vehicle frame is provided with a body slideway and a battery slideway, the battery slideway is provided with a battery bracket, a battery is provided in the battery bracket, a fastening cylinder is provided at one end of the lower surface of the battery bracket, a fastening cylinder positioning shaft is provided at the other end of the lower surface of the battery bracket, the fastening cylinder positioning shaft is connected to the mounting frame on the vehicle frame, and a hydraulic cylinder is provided between the battery bracket and the mounting frame on the vehicle frame.

[0011] As a preferred technical solution of the present invention, the battery bracket includes a main bracket, a battery bracket locating pin hole, a first bolt mounting hole, a battery mounting mechanism, a first hydraulic cylinder mounting mechanism, a fastening cylinder mounting mechanism, a fastening cylinder mounting surface and a hydraulic cylinder mounting surface, the main bracket is symmetrically arranged with a battery mounting mechanism, the battery mounting mechanism is provided with a battery bracket locating pin hole and a first bolt mounting hole, and the lower surface of the main bracket is provided with a first hydraulic cylinder mounting mechanism and a fastening cylinder mounting mechanism through a bracket mounting block.

[0012] As a preferred technical solution of the present invention, the battery slide is provided with a slide body, a battery slide positioning pin hole and a second bolt mounting hole, the battery slide positioning pin holes are symmetrically arranged at both ends of the slide body, and the second bolt mounting holes are linearly evenly distributed on the slide body.

[0013] As a preferred technical solution of the present invention, the fuselage slide includes a slide main body, a fuselage slide positioning pin hole and a third bolt mounting hole, and fuselage slide positioning pin holes are arranged at both ends of the slide main body, and the third bolt mounting holes are linearly evenly distributed on the slide main body.

[0014] As a preferred technical solution of the present invention, the hydraulic cylinder comprises a hydraulic cylinder body, a push rod mounting hole and a cylinder barrel mounting hole, and push rod mounting holes and cylinder barrel mounting holes are provided at both ends of the hydraulic cylinder body.

[0015] As a preferred technical solution of the present invention, the fastening cylinder includes a fastening cylinder body, a fastening cylinder top rod mounting hole and a fastening cylinder barrel mounting hole, and fastening cylinder top rod mounting holes and fastening cylinder barrel mounting holes are provided at both ends of the fastening cylinder body, and the fastening cylinder top rod mounting holes and the fastening cylinder barrel mounting holes are vertically arranged.

[0016] As a preferred technical solution of the present invention, the frame mounting frame includes a frame mounting frame body, a groove slide, a positioning block, a slide positioning pin hole, a fourth bolt mounting hole, a second hydraulic cylinder mounting mechanism, a fastening cylinder positioning shaft mounting hole and a positioning shaft mounting bolt hole. The frame mounting frame body is provided with a groove slide, the groove slide is provided with a slide positioning pin hole and a fourth bolt mounting hole, the inner side surface of the frame mounting frame body is provided with a second hydraulic cylinder mounting mechanism, and the positioning block is provided with a fastening cylinder positioning shaft mounting hole and a positioning shaft mounting bolt hole.

[0017] As a preferred technical solution of the present invention, the fastening cylinder positioning shaft includes a main shaft, a fastening cylinder mounting plate and a fastening cylinder mounting hole. Fastening cylinder mounting plates are provided at both ends of the main shaft, and fastening cylinder mounting holes are provided on the fastening cylinder mounting plates.

[0018] As a preferred technical solution of the present invention, it also includes a front axle load sensor, a battery adjustment controller, and a display operation controller. The output end of the front axle load sensor is respectively connected to the output end of the battery adjustment controller and the display operation controller, and the output end of the battery adjustment controller and the display operation controller is connected to the output end of the hydraulic cylinder.

[0019] Compared with the prior art, the beneficial effects of the present invention are: a device and method for adjusting the battery position of an electric tractor and adjusting the center of gravity of the entire vehicle can adjust the position of the battery through the action of a hydraulic cylinder, thereby balancing the front and rear loads of the entire vehicle, thereby preventing the occurrence of a nose-lift phenomenon, and at the same time the device can continuously adjust the displacement of the battery to provide a more precise center of gravity adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 is a structural schematic diagram of a battery bracket;

[0022] Figure 3 It is a structural schematic diagram of the battery slide;

[0023] Figure 4 It is a structural schematic diagram of the fuselage slide;

[0024] Figure 5 It is a structural schematic diagram of a hydraulic cylinder;

[0025] Figure 6 It is a structural diagram of the fastening oil cylinder;

[0026] Figure 7 It is a schematic diagram of the structure of the mounting frame on the vehicle frame;

[0027] Figure 8 It is a schematic diagram of the structure of the fastening cylinder positioning shaft;

[0028] Fig. 9 is a schematic diagram of the battery structure;

[0029] Fig.10 It is a flow chart.

[0030] In the figure: 1 battery bracket, 11 battery bracket locating pin hole, 12 first bolt mounting hole, 13 battery mounting mechanism, 14 first hydraulic cylinder mounting mechanism, 15 fastening cylinder mounting mechanism, 2 battery slide, 21 battery slide locating pin hole, 22 second bolt mounting hole, 3 fuselage slide, 31 fuselage slide locating pin hole, 32 third bolt mounting hole, 4 hydraulic cylinder, 41 push rod mounting hole, 42 cylinder barrel mounting hole, 5 fastening cylinder, 51 fastening cylinder push rod mounting hole, 52 fastening cylinder barrel mounting hole, 6 frame mounting frame, 61 slide locating pin hole, 62 fourth bolt mounting hole, 63 second hydraulic cylinder mounting mechanism, 64 fastening cylinder positioning shaft mounting hole, 65 positioning shaft mounting bolt hole, 7 fastening cylinder positioning shaft, 71 fastening cylinder mounting hole, 72 fastening cylinder mounting plate, 73 main shaft, 8 battery. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments (for the convenience of description and understanding, the following is a schematic diagram of the embodiment of the present invention). Figure 1 Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-9The present invention provides a technical solution: a device for adjusting the battery position of an electric tractor and adjusting the center of gravity of the whole vehicle, comprising a mounting frame 6 on a frame and a battery bracket 1, wherein the mounting frame 6 on the frame comprises a mounting frame body on the frame, a groove slide, a positioning block, a slide positioning pin hole 61, a fourth bolt mounting hole 62, a second hydraulic cylinder mounting mechanism 63, a fastening oil cylinder positioning shaft mounting hole 64 and a positioning shaft mounting bolt hole 65, the mounting frame body on the frame is provided with a groove slide, the groove slide is provided with a slide positioning pin hole 61 and a fourth bolt mounting hole 62, the inner side surface of the mounting frame body on the frame is provided with a second hydraulic cylinder mounting mechanism 63, the positioning block is provided with a fastening oil cylinder positioning shaft mounting hole 64 and a positioning shaft mounting bolt hole 65, and further It includes a front axle load sensor, a battery adjustment controller, a display operation controller, the output end of the front axle load sensor is connected to the output end of the battery adjustment controller and the display operation controller respectively, the output end of the battery adjustment controller and the display operation controller is connected to the output end of the hydraulic cylinder 4, the battery bracket 1 includes a main body bracket, a battery bracket positioning pin hole 11, a first bolt mounting hole 12, a battery mounting mechanism 13, a first hydraulic cylinder mounting mechanism 14, a fastening oil cylinder mounting mechanism 15, a fastening oil cylinder mounting surface 16 and a hydraulic cylinder mounting surface 17, the main body bracket is symmetrically provided with a battery mounting mechanism 13, the battery mounting mechanism 13 is provided with a battery bracket positioning pin hole 11 and a first bolt mounting hole 12, the lower surface of the main body bracket A first hydraulic cylinder mounting mechanism 14 and a fastening cylinder mounting mechanism 15 are provided through the bracket mounting block. The battery bracket 1 is used to fix the battery 8 to prevent the battery 8 from shaking, so as to ensure that the use of the battery 8 is safer and more reliable. The battery bracket 1 is designed with a first hydraulic cylinder mounting mechanism 14, which can fix the other end of the hydraulic cylinder 4 on the battery bracket 1, and the hydraulic cylinder 4 can rotate around the first hydraulic cylinder mounting mechanism 14. A fastening cylinder mounting mechanism 15 is designed on the battery bracket 1. One end of the fastening cylinder 5 can be fixed on the battery bracket 1. The fixed axis of the fastening cylinder 5 on the battery bracket 1 is parallel to the battery slide 2, and the fastening cylinder 5 moves with the moving direction of the battery bracket 1. The upper surface of the mounting frame 6 on the frame is provided with a body slide 3 and a battery slide 2. The battery slide 2 is provided with a slide body, a battery slide locating pin hole 21 and a second bolt mounting hole 22, the battery slide locating pin holes 21 are symmetrically arranged at both ends of the slide body, and the second bolt mounting holes 22 are linearly evenly distributed on the slide body. The fuselage slide 3 includes a slide groove body, a fuselage slide locating pin hole 31 and a third bolt mounting hole 32, both ends of the slide groove body are provided with fuselage slide locating pin holes 31, and the third bolt mounting holes 32 are linearly evenly distributed on the slide groove body. The cross section of the battery slide 2 is designed in an inverted trapezoidal shape, and the cross section of the fuselage slide 3 is designed in a concave shape. The battery slide 2 can be inserted from one end of the fuselage slide 3 and slide along the fuselage slide 3, and the concave design of the cross section of the fuselage slide 3 plays a role in limiting and positioning the movement of the battery slide 2 in the longitudinal direction.The battery slide 2 is provided with a battery bracket 1, and a battery 8 is provided in the battery bracket 1. A fastening cylinder 5 is provided at one end of the lower surface of the battery bracket 1. The fastening cylinder 5 includes a fastening cylinder body, a fastening cylinder top rod mounting hole 51 and a fastening cylinder barrel mounting hole 52. The two ends of the fastening cylinder body are provided with fastening cylinder top rod mounting holes 51 and fastening cylinder barrel mounting holes 52. The fastening cylinder top rod mounting holes 51 and the fastening cylinder barrel mounting holes 52 are vertically arranged. The other end of the fastening cylinder 5 is installed on the fastening cylinder positioning shaft 7. The fastening cylinder 5 can move along the fastening cylinder positioning axis 7. The other end of the lower surface of the battery bracket 1 is provided with a fastening cylinder positioning axis 7. The fastening cylinder positioning axis 7 includes a main shaft 73, a fastening cylinder mounting plate 72 and a fastening cylinder mounting hole 71. The two ends of the main shaft 73 are provided with fastening cylinder mounting plates 72. The fastening cylinder mounting plate 72 is provided with a fastening cylinder mounting hole 71. The fastening cylinder positioning axis 7 is connected to the mounting frame 6 on the frame. A hydraulic cylinder 4 is provided between the battery bracket 1 and the mounting frame 6 on the frame. The hydraulic cylinder 4 extends and When shortened, the battery bracket 1 can carry the battery 8 and move along the fuselage slide 3 through the battery slide 2 under the action of the hydraulic cylinder 4, thereby changing the position of the battery 8 on the whole vehicle, thereby changing the center of gravity of the whole vehicle. Under the action of the hydraulic cylinder 4, the battery bracket 1 carries the battery 8 and moves forward and backward along the fuselage slide 3. When the battery 8 moves to the specified position, the battery bracket 1 is tightened by shortening the length of the fastening cylinder. When the hydraulic cylinder 4 is stationary, the hydraulic cylinder 4 can limit the forward and backward movement of the battery bracket 1 and the battery 8; the fuselage slide 3 can limit the battery slide 2 in the whole The battery bracket 1 and the battery 8 can be restricted from moving in the left and right directions and in the longitudinal direction of the vehicle, thereby limiting the movement of the battery bracket 1 and the battery 8 in the left and right directions and in the longitudinal direction of the vehicle; the battery bracket 1 and the battery 8 can be restricted from moving in the longitudinal direction by tightening the oil cylinder 5. The hydraulic cylinder 4 includes a hydraulic cylinder body, a push rod mounting hole 41 and a cylinder barrel mounting hole 42. The two ends of the hydraulic cylinder body are provided with a push rod mounting hole 41 and a cylinder barrel mounting hole 42. The device can change the position of the battery, and then change the position of the center of gravity of the tractor, effectively preventing the occurrence of the tractor head tilt phenomenon, and improving the convenience of using the device.

[0033] See also Fig.10 , a method for adjusting the battery position of an electric tractor to adjust the center of gravity of the entire vehicle,

[0034] S1: The front axle load sensor detects the load on the tractor's front axle in real time;

[0035] S2: If the front axle load sensor detects that the load on the front axle is less than 20% of the vehicle mass, then go to step S3; if the front axle load sensor detects that the load on the front axle is greater than 40% of the vehicle mass, then go to step S4; if the front axle load sensor detects that the load on the front axle is between 20% and 40%, then go to step S5;

[0036] S3: The front axle load sensor transmits a signal indicating that the battery is moving forward to the battery adjustment controller. Under the action of the battery adjustment controller, the battery position is adjusted to move the battery forward, thereby adjusting the center of gravity of the electric tractor. If the front axle load sensor detects that the load on the front axle of the tractor is still less than 20% of the vehicle mass, step S3 is repeated until the tractor runs smoothly.

[0037] S4: The front axle load sensor transmits a signal indicating that the battery is moving backward to the battery adjustment controller. Under the action of the battery adjustment controller, the battery position is adjusted to move the battery backward, thereby adjusting the center of gravity of the electric tractor. If the front axle load sensor detects that the load on the front axle of the tractor is still higher than 40% of the vehicle mass, step S4 is repeated until the tractor runs smoothly.

[0038] S5: The front axle load sensor stops sending signals to the battery adjustment controller and instead sends the front axle load data to the display operation controller. The driver decides to move the tractor battery forward or backward according to the tractor's driving status, and the driver gives a signal on the display operation controller to move the electric tractor battery forward or backward.

[0039] The present invention can conveniently adjust the center of gravity of the entire vehicle, thereby reducing the counterweight, thereby reducing energy consumption, and at the same time changing the center of gravity position of the entire machine, so that the tractor can flexibly adapt to different terrains, thereby better performing operations in different working conditions. The battery bracket 1 is used to fix the battery 8 to prevent the battery 8 from shaking, thereby ensuring that the use of the battery 8 is safer and more reliable.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for adjusting the battery position of an electric tractor to adjust the center of gravity of the entire vehicle, characterized in that: S1: The front axle load sensor detects the load on the tractor's front axle in real time; S2: If the front axle load sensor detects that the load on the front axle is less than 20% of the vehicle mass, then go to step S3; if the front axle load sensor detects that the load on the front axle is greater than 40% of the vehicle mass, then go to step S4; if the front axle load sensor detects that the load on the front axle is between 20% and 40%, then go to step S5; S3: The front axle load sensor transmits a signal indicating that the battery is moving forward to the battery adjustment controller. Under the action of the battery adjustment controller, the battery position is adjusted to move the battery forward, thereby adjusting the center of gravity of the electric tractor. If the front axle load sensor detects that the load on the front axle of the tractor is still less than 20% of the vehicle mass, step S3 is repeated until the tractor runs smoothly. S4: The front axle load sensor transmits a signal indicating that the battery is moving backward to the battery adjustment controller. Under the action of the battery adjustment controller, the battery position is adjusted to move the battery backward, thereby adjusting the center of gravity of the electric tractor. If the front axle load sensor detects that the load on the front axle of the tractor is still higher than 40% of the vehicle mass, step S4 is repeated until the tractor runs smoothly. S5: The front axle load sensor stops sending signals to the battery adjustment controller and instead sends the front axle load data to the display operation controller. The driver decides to move the tractor battery forward or backward according to the tractor's driving status, and the driver gives a signal on the display operation controller to move the electric tractor battery forward or backward.

2. A device for adjusting the battery position of an electric tractor and the center of gravity of the entire vehicle, comprising a mounting frame (6) on a vehicle frame and a battery bracket (1), characterized in that: The upper surface of the vehicle frame mounting frame (6) is provided with a body slideway (3) and a battery slideway (2); the battery slideway (2) is provided with a battery bracket (1); a battery (8) is provided in the battery bracket (1); a fastening cylinder (5) is provided at one end of the lower surface of the battery bracket (1); a fastening cylinder positioning shaft (7) is provided at the other end of the lower surface of the battery bracket (1); the fastening cylinder positioning shaft (7) is connected to the vehicle frame mounting frame (6); and a hydraulic cylinder (4) is provided between the battery bracket (1) and the vehicle frame mounting frame (6); The fastening oil cylinder (5) comprises a fastening oil cylinder body, a fastening oil cylinder top rod mounting hole (51) and a fastening oil cylinder barrel mounting hole (52), and the fastening oil cylinder top rod mounting hole (51) and the fastening oil cylinder barrel mounting hole (52) are arranged at both ends of the fastening oil cylinder body, and the fastening oil cylinder top rod mounting hole (51) and the fastening oil cylinder barrel mounting hole (52) are arranged vertically; The fastening oil cylinder positioning shaft (7) comprises a main shaft (73), a fastening oil cylinder mounting plate (72) and a fastening oil cylinder mounting hole (71); fastening oil cylinder mounting plates (72) are provided at both ends of the main shaft (73); and the fastening oil cylinder mounting plate (72) is provided with a fastening oil cylinder mounting hole (71).

3. The device for adjusting the battery position of an electric tractor and the center of gravity of the whole vehicle according to claim 2, characterized in that: The battery bracket (1) comprises a main bracket, a battery bracket positioning pin hole (11), a first bolt mounting hole (12), a battery mounting mechanism (13), a first hydraulic cylinder mounting mechanism (14), a fastening cylinder mounting mechanism (15), a fastening cylinder mounting surface (16) and a hydraulic cylinder mounting surface (17); the battery mounting mechanism (13) is symmetrically arranged in the main bracket; the battery mounting mechanism (13) is provided with a battery bracket positioning pin hole (11) and a first bolt mounting hole (12); and the lower surface of the main bracket is provided with a first hydraulic cylinder mounting mechanism (14) and a fastening cylinder mounting mechanism (15) via a bracket mounting block.

4. The device for adjusting the battery position of an electric tractor and adjusting the center of gravity of the whole vehicle according to claim 2, characterized in that: The battery slide (2) is provided with a slide body, a battery slide positioning pin hole (21) and a second bolt mounting hole (22); the battery slide positioning pin holes (21) are symmetrically arranged at both ends of the slide body, and the second bolt mounting holes (22) are linearly evenly distributed on the slide body.

5. The device for adjusting the battery position of an electric tractor and the center of gravity of the whole vehicle according to claim 2, characterized in that: The fuselage slideway (3) comprises a slideway main body, a fuselage slideway positioning pin hole (31) and a third bolt mounting hole (32), the fuselage slideway positioning pin holes (31) being arranged at both ends of the slideway main body, and the third bolt mounting holes (32) being evenly distributed linearly on the slideway main body.

6. The device for adjusting the battery position of an electric tractor and the center of gravity of the whole vehicle according to claim 2, characterized in that: The hydraulic cylinder (4) comprises a hydraulic cylinder body, a push rod mounting hole (41) and a cylinder barrel mounting hole (42); both ends of the hydraulic cylinder body are provided with a push rod mounting hole (41) and a cylinder barrel mounting hole (42).

7. The device for adjusting the battery position of an electric tractor and the center of gravity of the whole vehicle according to claim 2, characterized in that: The frame mounting frame (6) comprises a frame mounting frame body, a groove slideway, a positioning block, a slideway positioning pin hole (61), a fourth bolt mounting hole (62), a second hydraulic cylinder mounting mechanism (63), a fastening oil cylinder positioning shaft mounting hole (64) and a positioning shaft mounting bolt hole (65); the frame mounting frame body is provided with a groove slideway, the groove slideway is provided with a slideway positioning pin hole (61) and a fourth bolt mounting hole (62); the inner side surface of the frame mounting frame body is provided with a second hydraulic cylinder mounting mechanism (63), and the positioning block is provided with a fastening oil cylinder positioning shaft mounting hole (64) and a positioning shaft mounting bolt hole (65).

8. The device for adjusting the battery position of an electric tractor and the center of gravity of the whole vehicle according to claim 2, characterized in that: It also includes a front axle load sensor, a battery adjustment controller and a display operation controller, wherein the output end of the front axle load sensor is connected to the output end of the battery adjustment controller and the display operation controller respectively, and the output end of the battery adjustment controller and the display operation controller are connected to the output end of the hydraulic cylinder (4).

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