Tractor suspension automatic leveling device

Abstract

The utility model provides a tractor suspension automatic leveling device, and relates to the technical field of tractor suspension, the tractor suspension automatic leveling device comprises a side plate, a supporting plate is fixedly mounted on one side of the side plate, first hanging lugs are fixedly mounted on the front and rear sides of the bottom of the supporting plate, and rotating rods are rotatably mounted on the inner sides of the first hanging lugs; according to the tractor suspension control assembly, a first fixing plug pin can be locked through a locking bolt, the first fixing plug pin is prevented from loosening and falling off in the using process of the device, a first swing block can be installed through a second fixing plug pin through a side plate and a second hanging lug above a rotating rod, and the device is convenient to use. And the first hydraulic telescopic rod can be fixed between one sides of the first swing blocks, so that when the tractor runs to an inclined road section, the first hydraulic telescopic rod can drive the horizontal mounting plate to adjust the angle.

Description

Technical Field

[0001] The utility model relates to the technical field of tractor suspension, in particular to an automatic leveling device for tractor suspension. Background Art

[0002] A tractor is a self-propelled power machine used to pull and drive working machinery to complete various mobile operations. It can also be used as a fixed working power source. It consists of an engine, transmission, travel, steering, hydraulic suspension, power output, electrical instruments, driving control, and traction systems or devices. When a tractor is used in conjunction with agricultural implements, the agricultural implements often tilt due to the terrain of the cultivated land during use, resulting in poor uniformity of cultivated land operations, causing great inconvenience to subsequent planting work and hindering the subsequent growth of agricultural products. To this end, we have proposed an automatic leveling device for tractor suspension.

[0003] Publication No. CN216721997U discloses an automatic leveling device for a tractor suspension, comprising a tractor, a tractor suspension, and an automatic leveling system. An electronic controller is provided in the cab of the tractor, the electronic controller employing a PLC single-chip microcomputer, the input end of the electronic controller being electrically connected to the output end of an on-board power supply. An electronic sensor is provided on the tractor suspension, and the tractor and tractor suspension are connected via an adjustable connection assembly.

[0004] When in use, the existing device can only control the tractor suspension through the electric telescopic rods on both sides, making it difficult to adjust the other end of the suspension. In addition, the existing device has low flexibility and cannot be changed accordingly according to actual conditions. Therefore, we propose an automatic leveling device for tractor suspension. Utility Model Content

[0005] In view of this, the present application provides an automatic leveling device for a tractor suspension, the purpose of which is to solve the above technical problems to a certain extent.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A tractor suspension automatic leveling device comprises a side plate for installing a tractor suspension, a support plate fixedly mounted on one side of the side plate, first hanging ears fixedly mounted on the front and rear sides of the bottom of the support plate, a rotating rod rotatably mounted on the inner side of the first hanging ear, a first fixing pin rotatably mounted on the inner sides of the first hanging ear and the rotating rod, a first fixing plate fixedly mounted on one side of the first hanging ear, a locking bolt threadedly mounted on the inner sides of the first fixing plate and the first fixing pin, a tractor suspension control assembly is arranged above the side plate and the rotating rod, a tractor suspension leveling assembly is arranged above the rotating rod, and a tractor suspension adjustment mechanism is arranged above the tractor suspension leveling assembly.

[0008] Preferably, the tractor suspension control assembly includes a second hanging ear, a second fixing pin, a first swing block, a first hydraulic telescopic rod, a second fixing plate and a first fixing bolt, the second hanging ear is fixedly mounted on one side of the side plate and the rotating rod, the second fixing pin is arranged on the inner side of the second hanging ear, the first swing block is rotatably mounted on the outer side of the second fixing pin, the first hydraulic telescopic rod is fixedly mounted between one side of the first swing block, the second fixing plate is fixedly mounted on one side of the second hanging ear, and the first fixing bolt is threadedly mounted on the inner side of the second fixing plate.

[0009] Preferably, the tractor suspension horizontal assembly includes a third hanging ear, a third fixing pin, a horizontal mounting plate, a fourth hanging ear, a fourth fixing pin, a second swing block, a second hydraulic telescopic rod, a third fixing plate and a second fixing bolt, the third hanging ear is arranged on the outside of the rotating rod, the third fixing pin is rotatably mounted on the inside of the third hanging ear and the rotating rod, the horizontal mounting plate is fixedly mounted on the bottom of the third hanging ear, the fourth hanging ear is fixedly mounted on one side of the rotating rod and the horizontal mounting plate, the fourth fixing pin is rotatably mounted on the inside of the fourth hanging ear, the second swing block is rotatably mounted on the inside of the fourth fixing pin, the second hydraulic telescopic rod is fixedly mounted between one side of the second swing block, the third fixing plate is fixedly mounted on one side of the fourth hanging ear, and the second fixing bolt is threadedly mounted on the inside of the third fixing plate and the fourth fixing pin.

[0010] By adopting the above technical solution, the second hydraulic telescopic rod can be less likely to be restricted during the extension and retraction process through the second swing blocks at both ends, so that the device has a better horizontal adjustment effect.

[0011] Preferably, the tractor suspension adjustment mechanism includes a battery, a microcontroller, a tilt sensor, a pressure sensor and a sensor data control module, the battery is arranged on the inner side of the horizontal mounting plate, the microcontroller is arranged on one side of the battery, the tilt sensor is arranged on one side of the microcontroller, the pressure sensor is fixedly installed on one side of the microcontroller, and the sensor data control module is arranged on one side of the microcontroller.

[0012] Preferably, threaded holes are provided at four corners of one side of the side plate, and the side plate is arranged on one side of the tractor.

[0013] Preferably, the first hanging ear, the second hanging ear, the third hanging ear and the fourth hanging ear are C-shaped, and a through groove is formed on one side of the first hanging ear, the second hanging ear, the third hanging ear and the fourth hanging ear and the rotating rod, the first swing block and the second swing block, and the first fixing pin, the second fixing pin, the third fixing pin and the fourth fixing pin are arranged on the inner side of the through groove.

[0014] By adopting the above technical solution, the installation of multiple latches is more convenient and quick, so that the device is easy to disassemble and the subsequent maintenance is more convenient.

[0015] Preferably, a plurality of hanging ears are provided at the bottom of the horizontal mounting plate, and agricultural machinery equipment is provided below the hanging ears.

[0016] By adopting the above technical solution, the agricultural machinery equipment can be installed on the hanging ears below the horizontal mounting plate through the fixing bolts, so that the horizontal mounting plate can control the horizontal state of the agricultural machinery equipment after being leveled.

[0017] Preferably, threaded holes are provided on one side of the first fixing pin, the second fixing pin, the third fixing pin and the fourth fixing pin and the first fixing plate, the second fixing plate and the third fixing plate, and the first fixing bolt, the locking bolt and the second fixing bolt are threadedly installed on the inner side of the threaded holes.

[0018] Preferably, an external infrared signal transmitter is provided on the outside of the microcontroller, and an infrared signal receiver is provided above the first hydraulic telescopic rod and the second hydraulic telescopic rod.

[0019] Preferably, the tilt sensor and the pressure sensor are electrically connected to a microcontroller, and the microcontroller is electrically connected to a sensor data control module.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) The utility model relates to an automatic leveling device for tractor suspension, wherein a first fixing pin can be locked by a locking bolt through a tractor suspension control assembly to prevent the first fixing pin from loosening and falling during use of the device, and the second fixing pin can be installed on the first swing block through the side plate and the second hanging ear above the rotating rod, so that the first hydraulic telescopic rod can be fixed between one side of the first swing block, so that when the tractor travels on an inclined section, the horizontal mounting plate can be driven by the first hydraulic telescopic rod to adjust the angle;

[0022] (2) The utility model is a tractor suspension automatic leveling device, which can detect the tilt angle through the inclination sensor and the pressure sensor during the vehicle's driving process by means of the tractor suspension leveling component and the tractor suspension adjustment mechanism, and calculate the tilt angle through the microcontroller and the sensor data control module, so that the microcontroller can control the first hydraulic telescopic rod and the second hydraulic telescopic rod, so that the second hydraulic telescopic rod can drive the horizontal mounting plate to be adjusted horizontally through the second swing block, so that the agricultural implements under the horizontal mounting plate can be kept in a horizontal state.

[0023] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of a tractor suspension automatic leveling device proposed by the utility model;

[0025] Figure 2 A schematic diagram showing a three-dimensional view of an exploded portion of a tractor suspension automatic leveling device provided according to an embodiment of the present application;

[0026] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0027] Figure 4 A schematic diagram of the frame structure of a tractor suspension automatic leveling device provided according to an embodiment of the present application is shown.

[0028] Reference numerals:

[0029] 1. Tractor suspension control assembly; 2. Tractor suspension leveling assembly; 3. Tractor suspension adjustment mechanism; 4. Side plate; 5. Support plate; 6. First mounting lug; 7. Rotating rod; 8. First fixing pin; 9. First fixing plate; 10. Locking bolt;

[0030] 11. Second mounting lug; 12. Second fixing pin; 13. First swing block; 14. First hydraulic telescopic rod; 15. Second fixing plate; 16. First fixing bolt;

[0031] 21. Third mounting bracket; 22. Third fixing pin; 23. Horizontal mounting plate; 24. Fourth mounting bracket; 25. Fourth fixing pin; 26. Second swing block; 27. Second hydraulic telescopic rod; 28. Third fixing plate; 29. ​​Second fixing bolt;

[0032] 31. Battery; 32. Microcontroller; 33. Inclination sensor; 34. Pressure sensor; 35. Sensor data control module. DETAILED DESCRIPTION

[0033] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0034] The structure of the present utility model is described in detail below with reference to the accompanying drawings.

[0035] refer to Figure 1-4A tractor suspension automatic leveling device includes a side plate 4 for installing the tractor suspension, a support plate 5 is fixedly installed on one side of the side plate 4, a first hanging ear 6 is fixedly installed on the front and rear sides of the bottom of the support plate 5, a rotating rod 7 is rotatably installed on the inner side of the first hanging ear 6, a first fixing pin 8 is rotatably installed on the inner sides of the first hanging ear 6 and the rotating rod 7, a first fixing plate 9 is fixedly installed on one side of the first hanging ear 6, and a locking bolt 10 is threadedly installed on the inner sides of the first fixing plate 9 and the first fixing pin 8, a tractor suspension control assembly 1 is arranged above the side plate 4 and the rotating rod 7, a tractor suspension leveling assembly 2 is arranged above the rotating rod 7, and a tractor suspension adjustment mechanism 3 is arranged above the tractor suspension leveling assembly 2.

[0036] In this embodiment, the tractor suspension control assembly 1 includes a second hanging ear 11, a second fixed pin 12, a first swing block 13, a first hydraulic telescopic rod 14, a second fixed plate 15 and a first fixing bolt 16. The second hanging ear 11 is fixedly mounted on one side of the side plate 4 and the rotating rod 7, the second fixed pin 12 is arranged on the inner side of the second hanging ear 11, the first swing block 13 is rotatably mounted on the outer side of the second fixed pin 12, the first hydraulic telescopic rod 14 is fixedly mounted between one side of the first swing block 13, the second fixed plate 15 is fixedly mounted on one side of the second hanging ear 11, and the first fixing bolt 16 is threadedly mounted on the inner side of the second fixed plate 15. It should be noted that the first hydraulic telescopic rod 14 can control the rotating rod 7 so that the horizontal mounting plate 23 below can maintain a horizontal state, and the first hydraulic telescopic rod 14 can drive the rotating rod 7 and the horizontal mounting plate 23 below to adjust the angle.

[0037] In this embodiment, the tractor suspension horizontal assembly 2 includes a third hanging ear 21, a third fixing pin 22, a horizontal mounting plate 23, a fourth hanging ear 24, a fourth fixing pin 25, a second swing block 26, a second hydraulic telescopic rod 27, a third fixing plate 28 and a second fixing bolt 29. The third hanging ear 21 is arranged on the outside of the rotating rod 7, the third fixing pin 22 is rotatably mounted on the inner side of the third hanging ear 21 and the rotating rod 7, the horizontal mounting plate 23 is fixedly mounted on the bottom of the third hanging ear 21, the fourth hanging ear 24 is fixedly mounted on one side of the rotating rod 7 and the horizontal mounting plate 23, and the third hanging ear 21 is arranged on the outside of the rotating rod 7. The fourth fixed pin 25 is rotatably mounted on the inner side of the fourth hanging ear 24, the second swing block 26 is rotatably mounted on the inner side of the fourth fixed pin 25, the second hydraulic telescopic rod 27 is fixedly mounted between one side of the second swing block 26, the third fixed plate 28 is fixedly mounted on one side of the fourth hanging ear 24, and the second fixing bolt 29 is threadedly mounted on the inner side of the third fixed plate 28 and the fourth fixed pin 25. It should be noted that one end of the horizontal mounting plate 23 can be suspended above the rotating rod 7, so that the second hydraulic telescopic rod 27 can control the level of the other end of the horizontal mounting plate 23.

[0038] In this embodiment, the tractor suspension adjustment mechanism 3 includes a battery 31, a microcontroller 32, a tilt sensor 33, a pressure sensor 34 and a sensor data control module 35. The battery 31 is arranged on the inner side of the horizontal mounting plate 23, the microcontroller 32 is arranged on one side of the battery 31, the tilt sensor 33 is arranged on one side of the microcontroller 32, the pressure sensor 34 is fixedly mounted on one side of the microcontroller 32, and the sensor data control module 35 is arranged on one side of the microcontroller 32. It should be noted that the microcontroller 32, the tilt sensor 33, the pressure sensor 34 and the sensor data control module 35 are all existing technologies. The tilt sensor 33 can be installed on the tractor suspension system to detect the tilt angle of the suspension in real time; the tilt sensor 33 can be fixed above the four corners of the horizontal mounting plate 23 to accurately detect the tilt angle of the suspension. Accurately measure the changes in the inclination angle of the suspension in different directions; the pressure sensor 34 can be installed in the hydraulic system of the suspension to detect the pressure on the suspension; by monitoring the pressure changes, the load condition of the suspension can be judged, providing a reference for automatic horizontal adjustment; the sensor data control module 35 can read the data of the inclination sensor and the pressure sensor at regular intervals through the microcontroller 32, filter and calibrate the data, remove noise and errors, and obtain accurate suspension inclination angle and pressure values; the sensor data control module 35 can judge the horizontal state and load condition of the suspension according to the inclination angle and pressure value of the suspension, provide a basis for automatic horizontal adjustment, and enable the microcontroller 32 to control the first hydraulic telescopic rod 14 and the second hydraulic telescopic rod 27 through the algorithm of the sensor data control module 35, so that the horizontal mounting plate 23 can maintain a horizontal state.

[0039] In this embodiment, threaded holes are provided at the four corners of one side of the side panel 4, and the side panel 4 is arranged on one side of the tractor. It should be noted that the threaded holes facilitate fixing the side panel 4 on one side of the tractor, so that the tractor can drive the agricultural machinery to move through the suspension.

[0040] In this embodiment, the first hanging ear 6, the second hanging ear 11, the third hanging ear 21 and the fourth hanging ear 24 are C-shaped. A through groove is opened on one side of the first hanging ear 6, the second hanging ear 11, the third hanging ear 21 and the fourth hanging ear 24 and the rotating rod 7, the first swing block 13 and the second swing block 26. The first fixed pin 8, the second fixed pin 12, the third fixed pin 22 and the fourth fixed pin 25 are arranged on the inner side of the through groove. It should be noted that the through groove facilitates the installation of the first fixed pin 8, the second fixed pin 12, the third fixed pin 22 and the fourth fixed pin 25, making the disassembly and assembly of the device more convenient and quick, and making the subsequent maintenance more convenient.

[0041] In this embodiment, a plurality of hanging ears are provided at the bottom of the horizontal mounting plate 23, and agricultural machinery equipment is provided below the hanging ears. It should be noted that the agricultural machinery equipment can be installed below the horizontal mounting plate 23, so that the agricultural machinery equipment below can be in a horizontal state after the horizontal mounting plate 23 is adjusted to a horizontal level.

[0042] In this embodiment, threaded holes are provided on one side of the first fixing pin 8, the second fixing pin 12, the third fixing pin 22 and the fourth fixing pin 25 and the first fixing plate 9, the second fixing plate 15 and the third fixing plate 28, and the first fixing bolt 16, the locking bolt 10 and the second fixing bolt 29 are threadedly installed on the inner side of the threaded holes. It should be noted that the threaded holes facilitate the first fixing bolt 16, the locking bolt 10 and the second fixing bolt 29 to lock the first fixing pin 8, the second fixing pin 12, the third fixing pin 22 and the fourth fixing pin 25, so that they are not easily detached during movement, and their installation is more convenient and quick.

[0043] In this embodiment, an external infrared signal transmitter is provided on the outside of the microcontroller 32, and an infrared signal receiver is provided above the first hydraulic telescopic rod 14 and the second hydraulic telescopic rod 27. It should be noted that the infrared signal transmitter and the infrared signal receiver are both existing commonly used technologies, and the effect achieved is that the microcontroller 32 calculates through the sensor data control module 35 how far the first hydraulic telescopic rod 14 and the second hydraulic telescopic rod 27 need to be extended and retracted to make the horizontal mounting plate 23 horizontal, so that the first hydraulic telescopic rod 14 and the second hydraulic telescopic rod 27 can receive signals through the infrared signal receiver and move the first hydraulic telescopic rod 14 and the second hydraulic telescopic rod 27.

[0044] In this embodiment, the inclination sensor 33 and the pressure sensor 34 are electrically connected to the microcontroller 32, and the microcontroller 32 is electrically connected to the sensor data control module 35; it should be noted that the inclination sensor 33 and the pressure sensor 34 can detect the angle of the horizontal mounting plate 23. If the horizontal mounting plate 23 tilts, the tilt angle signal can be transmitted to the microcontroller 32, so that the microcontroller 32 can calculate the telescopic distance of the first hydraulic telescopic rod 14 and the second hydraulic telescopic rod 27 through the sensor data control module 35.

[0045] Specifically, the device can fix the side plate 4 to one side of the tractor, rotate the rotating rod 7 to be installed in the middle of the first hanging ear 6, and fix the rotating rod 7 by the first fixing pin 8. The first fixing pin 8 can be locked by the locking bolt 10 to prevent the first fixing pin 8 from loosening and falling during use of the device. The second fixing pin 12 can be installed on the first swing block 13 through the second hanging ear 11 above the side plate 4 and the rotating rod 7, so that the first hydraulic telescopic rod 14 can be fixed between one side of the first swing block 13, so that when the tractor travels on an inclined section, the horizontal mounting plate 23 can be driven by the first hydraulic telescopic rod 14 to adjust the angle; during the vehicle's travel, the inclination angle can be detected by the inclination sensor 33 and the pressure sensor 34, and calculated by the microcontroller 32 and the sensor data control module 35, so that the microcontroller 32 can control the first hydraulic telescopic rod 14 and the second hydraulic telescopic rod 27, so that the second hydraulic telescopic rod 27 can drive the horizontal mounting plate 23 to adjust horizontally through the second swing block 26, so that the agricultural implement below the horizontal mounting plate 23 remains in a horizontal state.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A tractor suspension automatic leveling device, characterized in that: include: A side plate (4) for mounting a tractor suspension, wherein a support plate (5) is fixedly mounted on one side of the side plate (4), a first hanging ear (6) is fixedly mounted on the front and rear sides of the bottom of the support plate (5), a rotating rod (7) is rotatably mounted on the inner side of the first hanging ear (6), a first fixing pin (8) is rotatably mounted on the inner sides of the first hanging ear (6) and the rotating rod (7), a first fixing plate (9) is fixedly mounted on one side of the first hanging ear (6), a locking bolt (10) is threadedly mounted on the inner sides of the first fixing plate (9) and the first fixing pin (8), a tractor suspension control assembly (1) is arranged above the side plate (4) and the rotating rod (7), a tractor suspension horizontal assembly (2) is arranged above the rotating rod (7), and a tractor suspension adjustment mechanism (3) is arranged above the tractor suspension horizontal assembly (2).

2. The tractor suspension automatic leveling device according to claim 1, characterized in that: The tractor suspension control assembly (1) comprises a second hanging ear (11), a second fixing pin (12), a first swing block (13), a first hydraulic telescopic rod (14), a second fixing plate (15) and a first fixing bolt (16); the second hanging ear (11) is fixedly mounted on one side of the side plate (4) and the rotating rod (7); the second fixing pin (12) is arranged on the inner side of the second hanging ear (11); the first swing block (13) is rotatably mounted on the outer side of the second fixing pin (12); the first hydraulic telescopic rod (14) is fixedly mounted between one side of the first swing block (13); the second fixing plate (15) is fixedly mounted on one side of the second hanging ear (11); and the first fixing bolt (16) is threadedly mounted on the inner side of the second fixing plate (15).

3. The tractor suspension automatic leveling device according to claim 1, characterized in that: The tractor suspension horizontal assembly (2) comprises a third hanging ear (21), a third fixing pin (22), a horizontal mounting plate (23), a fourth hanging ear (24), a fourth fixing pin (25), a second swing block (26), a second hydraulic telescopic rod (27), a third fixing plate (28) and a second fixing bolt (29); the third hanging ear (21) is arranged on the outside of the rotating rod (7); the third fixing pin (22) is rotatably mounted on the inside of the third hanging ear (21) and the rotating rod (7); and the horizontal mounting plate (23) is fixedly mounted on the bottom of the third hanging ear (21). The fourth hanging ear (24) is fixedly mounted on one side of the rotating rod (7) and the horizontal mounting plate (23); the fourth fixing pin (25) is rotatably mounted on the inner side of the fourth hanging ear (24); the second swing block (26) is rotatably mounted on the inner side of the fourth fixing pin (25); the second hydraulic telescopic rod (27) is fixedly mounted between one side of the second swing block (26); the third fixing plate (28) is fixedly mounted on one side of the fourth hanging ear (24); and the second fixing bolt (29) is threadedly mounted on the inner side of the third fixing plate (28) and the fourth fixing pin (25).

4. The tractor suspension automatic leveling device according to claim 1, characterized in that: The tractor suspension adjustment mechanism (3) comprises a battery (31), a microcontroller (32), a tilt sensor (33), a pressure sensor (34) and a sensor data control module (35); the battery (31) is arranged on the inner side of a horizontal mounting plate (23); the microcontroller (32) is arranged on one side of the battery (31); the tilt sensor (33) is arranged on one side of the microcontroller (32); the pressure sensor (34) is fixedly mounted on one side of the microcontroller (32); and the sensor data control module (35) is arranged on one side of the microcontroller (32).

5. The tractor suspension automatic leveling device according to claim 1, characterized in that: Threaded holes are provided at four corners of one side of the side plate (4), and the side plate (4) is arranged on one side of the tractor.

6. The tractor suspension automatic leveling device according to claim 1, characterized in that: The first hanging ear (6), the second hanging ear (11), the third hanging ear (21) and the fourth hanging ear (24) are C-shaped, and a through slot is provided on one side of the first hanging ear (6), the second hanging ear (11), the third hanging ear (21) and the fourth hanging ear (24) and the rotating rod (7), the first swing block (13) and the second swing block (26), and the first fixed pin (8), the second fixed pin (12), the third fixed pin (22) and the fourth fixed pin (25) are arranged on the inner side of the through slot.

7. The tractor suspension automatic leveling device according to claim 3, characterized in that: A plurality of hanging ears are provided at the bottom of the horizontal mounting plate (23), and agricultural machinery equipment is provided below the hanging ears.

8. The tractor suspension automatic leveling device according to claim 2, characterized in that: Threaded holes are provided on one side of the first fixing pin (8), the second fixing pin (12), the third fixing pin (22), the fourth fixing pin (25), the first fixing plate (9), the second fixing plate (15), and the third fixing plate (28), and the first fixing bolt (16), the locking bolt (10), and the second fixing bolt (29) are threadedly installed on the inner sides of the threaded holes.

9. The tractor suspension automatic leveling device according to claim 4, characterized in that: An external infrared signal transmitter is provided on the outside of the microcontroller (32), and an infrared signal receiver is provided above the first hydraulic telescopic rod (14) and the second hydraulic telescopic rod (27).

10. The tractor suspension automatic leveling device according to claim 4, characterized in that: The tilt sensor (33) and the pressure sensor (34) are electrically connected to the microcontroller (32), and the microcontroller (32) is electrically connected to the sensor data control module (35).

Images