Rapid suspension device for agricultural machinery

Abstract

The invention belongs to the technical field of agricultural machinery, and discloses an agricultural machinery rapid suspension device which comprises a suspension support, a driving mechanism, a locking assembly and a controller, the suspension support is used for connecting an agricultural machinery and an agricultural implement, the driving mechanism drives the suspension support to be close to or away from the agricultural implement, and the locking assembly is mounted on the side, facing the agricultural implement, of a mounting beam; the locking assembly comprises a shell, an electric mechanism, a spring bolt and a connecting piece, the electric mechanism and the spring bolt are arranged in the shell, and the spring bolt can slide in the inner cavity under the control of the electric mechanism, so that the spring bolt can retract into and protrude out of the outer wall of the locking groove, and the connecting piece can be released or locked from the locking groove; and then the farm tool needing to be connected is connected with the connecting piece, and therefore electric locking and disassembling of the farm tool are achieved. The quick suspension device for the agricultural machinery can quickly realize the butt joint of the agricultural implement and the suspension support, improves the hanging efficiency and precision, reduces the operation burden, and meets the operation requirements of various agricultural implements.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a quick suspension device for agricultural machinery. Background Art

[0002] In the context of precision agriculture, the daily replacement frequency of light agricultural implements such as micro-tillers and seeders is as high as 5-8 times. The distances of the hitch points of different implements may vary, posing stringent requirements on the hitch efficiency, adaptability, and reliability of the hitch. In the existing agricultural implement suspension devices, the locking mechanism mainly uses mechanical buckles, and manual insertion and removal of the pin shaft are required to complete the final locking. The single manual operation takes a long time, and the positioning process is complex and cumbersome. Moreover, the mechanical locking structure is vulnerable to sand and sediment intrusion, resulting in jamming. After long-term use, the clearance between the pin shaft and the pin hole increases, and the locking force decays significantly.

[0003] Therefore, there is an urgent need for a quick suspension device for agricultural machinery to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a quick suspension device for agricultural machinery, which can quickly realize the docking of agricultural implements and the locking component, and improve the hitch efficiency and accuracy.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] Provide a quick suspension device for agricultural machinery, including:

[0007] A suspension support, the suspension support includes a cantilever and a mounting beam, one end of the cantilever is connected to the mounting beam, and the other end is rotatably connected to the agricultural machinery to be installed;

[0008] A driving mechanism, one end of the driving mechanism is connected to the agricultural machinery, and the other end is connected to the suspension support, and the driving mechanism can drive the suspension support to rotate;

[0009] A locking component, the locking component includes a housing, an electric mechanism, a locking tongue, and a connecting piece. The housing is connected to the mounting beam. The housing includes an inner cavity and a locking groove. The electric mechanism is arranged in the inner cavity. The locking tongue is slidably connected to the inner cavity and protrudes from the side wall of the locking groove. The electric mechanism is used to drive the locking tongue to slide. The connecting piece is fixed between the locking tongue and the bottom wall of the locking groove, and the connecting piece is used to connect the agricultural implement;

[0010] A controller, which is electrically connected to the driving mechanism and the electric mechanism.

[0011] As an alternative solution for the quick hanging device of agricultural machinery, the electric mechanism includes a solenoid valve, a pull rod, a movable part and a rotating part. One end of the pull rod is slidably connected to the solenoid valve, and the other end is rotatably connected to one end of the movable part. The other end of the movable part is rotatably connected to the rotating part, and the rotating part is rotatably connected to the side wall of the inner cavity. The locking tongue is provided with a groove, and one end of the rotating part away from the movable part abuts against the inner wall of the groove.

[0012] As an alternative solution for the quick hanging device of agricultural machinery, a roller is provided at one end of the rotating part that abuts against the locking tongue.

[0013] As an alternative solution for the quick hanging device of agricultural machinery, the electric mechanism further includes a spring. An annular boss is provided at one end of the pull rod away from the solenoid valve, and the spring is sleeved on the pull rod and located between the boss and the solenoid valve.

[0014] As an alternative solution for the quick hanging device of agricultural machinery, the locking tongue is provided with a limiting part, and a limiting groove is provided on the inner wall of the inner cavity. The limiting groove extends along the moving direction of the locking tongue, and the limiting part is limited in the limiting groove.

[0015] As an alternative solution for the quick hanging device of agricultural machinery, the mounting beam is provided with a plurality of positioning grooves. The locking assembly further includes a fixing part and a positioning pin. The housing is connected to the fixing part. The fixing part is provided with a fixing groove, and the fixing groove is buckled to the mounting beam. The positioning pin penetrates through the fixing part and is limited in any one of the positioning grooves.

[0016] As an alternative solution for the quick hanging device of agricultural machinery, the hanging support includes two of the cantilevers, and the two cantilevers are arranged at intervals.

[0017] As an alternative solution for the quick hanging device of agricultural machinery, the hanging support further includes a connecting beam. The connecting beam is connected between the two cantilevers, and the driving mechanism is connected to the connecting beam.

[0018] As an alternative solution for the quick hanging device of agricultural machinery, the driving mechanism includes a support member and an electric cylinder. The support member is rotatably connected to the agricultural machinery, and the electric cylinder is connected between the support member and the hanging support. The electric cylinder is electrically connected to the controller.

[0019] As an alternative solution for the quick hanging device of agricultural machinery, the driving mechanism further includes a distance measuring sensor. The distance measuring sensor and the housing are arranged on the same side of the mounting beam, and the distance measuring sensor is signal-connected to the controller.

[0020] Advantages of the present invention:

[0021] The present invention provides a rapid agricultural machinery suspension device. The suspension support is used to connect the agricultural machinery and the farm implement. The drive mechanism is connected between the agricultural machinery and the suspension support and is used to adjust the position of the suspension support so that the suspension support can approach or move away from the farm implement. The locking assembly is installed on the side of the mounting beam facing the farm implement. The locking assembly includes a housing, an electric mechanism, a locking tongue, and a connecting member. The electric mechanism and the locking tongue are arranged inside the housing. Under the control of the electric mechanism, the locking tongue can slide inside the cavity so that the locking tongue can retract and protrude from the outer wall of the locking groove, thereby being able to release or lock the connecting member from the locking groove, and further connecting the farm implement to be connected with the connecting member, thus realizing the electric locking and disassembly of the farm implement. This rapid agricultural machinery suspension device can quickly achieve the docking of the farm implement and the suspension support, improve the hanging efficiency and accuracy, reduce the operation burden, and adapt to the operation requirements of various farm implements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the rapid agricultural machinery suspension device provided by the present invention;

[0023] Figure 2 is a schematic structural diagram of the suspension support of the rapid agricultural machinery suspension device provided by the present invention;

[0024] Figure 3 is a schematic structural diagram of the support member of the rapid agricultural machinery suspension device provided by the present invention;

[0025] Figure 4 is a schematic structural diagram of the locking assembly of the rapid agricultural machinery suspension device provided by the present invention;

[0026] Figure 5 is a cross-sectional view of the locking assembly of the rapid agricultural machinery suspension device provided by the present invention;

[0027] Figure 6 is a schematic structural diagram of the electric mechanism of the rapid agricultural machinery suspension device provided by the present invention;

[0028] Figure 7 is a schematic structural diagram of the locking tongue of the rapid agricultural machinery suspension device provided by the present invention.

[0029] In the figure:

[0030] 100, suspension support; 110, cantilever; 120, mounting beam; 121, positioning groove; 130, connecting beam; 140, connecting plate; 141, first connection hole;

[0031] 200, drive mechanism; 210, support member; 211, second connection hole; 212, third connection hole; 220, electric cylinder; 230, distance measuring sensor; 240, connecting rod;

[0032] 300. Locking component; 310. Housing; 311. Inner cavity; 3111. Limiting groove; 312. Locking groove; 320. Electric mechanism; 321. Solenoid valve; 322. Pull rod; 3221. Boss; 323. Movable part; 324. Rotating part; 3241. Roller; 325. Spring; 330. Lock tongue; 331. Groove; 332. Limiting part; 340. Connecting part; 350. Fixing part; 351. Fixing groove; 360. Positioning pin; 370. Cover plate; 380. Pressure sensor. Detailed implementation manners

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only the parts related to the present invention rather than all the structures are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0036] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0037] As Figures 1 to 7As shown in the figure, the quick suspension device for agricultural machinery in this embodiment includes a suspension support 100, a drive mechanism 200, a locking assembly 300, and a controller. The suspension support 100 includes a cantilever 110 and a mounting beam 120. One end of the cantilever 110 is connected to the mounting beam 120, and the other end is rotatably connected to the agricultural machinery to be installed. One end of the drive mechanism 200 is connected to the agricultural machinery, and the other end is connected to the suspension support 100. The drive mechanism 200 can drive the suspension support 100 to rotate. The locking assembly 300 is connected to the side of the mounting beam 120 facing the agricultural implement and is used to fix the agricultural implement to be suspended. The controller is electrically connected to the drive mechanism 200 and can control the rotation of the suspension support 100, adjust the position of the suspension support 100, so that the suspension support 100 can approach or move away from the agricultural implement, and realize the connection between the agricultural implement and the locking assembly 300.

[0038] Optionally, the suspension support 100 includes two cantilevers 110, and the two cantilevers 110 are arranged at intervals, thereby improving the structural strength and stability of the suspension support 100. Preferably, both the cantilever 110 and the mounting beam 120 are provided with a hollow structure, which while ensuring the structural strength, reduces the amount of materials used during manufacturing, reduces the weight of the cantilever 110 and the mounting beam 120, reduces the energy consumption during driving, saves the manufacturing and use costs, and provides a standardized wiring channel for the cables.

[0039] Furthermore, the suspension support 100 further includes a connecting beam 130. The connecting beam 130 is connected between the two cantilevers 110. The drive mechanism 200 is connected to the connecting beam 130. By using one drive mechanism 200 to drive the two cantilevers 110 simultaneously, the smoothness of the rotation of the suspension support 100 is ensured. The connecting beam 130 is integrally formed with the two cantilevers 110 by welding, so that the cantilever 110 and the connecting beam 130 form a stable force-bearing system, effectively improving the compressive and anti-torsion capabilities, and significantly enhancing the overall structural stability.

[0040] Specifically, there are two connecting beams 130. A number of connecting plates 140 are provided in the middle of the two connecting beams 130. Multiple first connection holes 141 are provided on the connecting plates 140. The driving end of the drive mechanism 200 is connected to the first connection holes 141. Such a setting enables the drive mechanism 200 to adapt to different angular positions between the drive mechanism 200 and the suspension support 100 during driving, reduces the jamming of the drive mechanism 200, and ensures that the suspension support 100 can rotate smoothly.

[0041] Further, the driving mechanism 200 includes a support member 210, an electric cylinder 220, and a connecting rod 240. One end of the connecting rod 240 is rotatably connected to the agricultural machinery, and the other end is rotatably connected to one end of the support member 210, thereby improving the flexibility of the connection between the driving mechanism 200 and the agricultural machinery and ensuring the movement range of the suspension support 100. The electric cylinder 220 is connected between the other end of the support member 210 and the suspension support 100. The electric cylinder 220 is electrically connected to the controller, and the controller can drive the telescopic movement of the electric cylinder 220, thereby realizing the rotation of the suspension support 100.

[0042] In traditional agricultural machinery suspension devices, a hydraulic cylinder is used to drive the suspension device. Affected by factors such as the compressibility of hydraulic oil and the response delay of valves, the positioning accuracy is usually low. It is necessary to continuously operate the hydraulic pump to maintain the position, resulting in high energy consumption. In addition, the hydraulic cylinder needs to be regularly replaced with hydraulic oil, and there are disadvantages such as leakage caused by the aging of seals. In this embodiment, the electric cylinder 220 adopts direct drive of a ball screw + servo motor, with relatively high repeat positioning accuracy. The backlash error can be eliminated through closed-loop control. The electric cylinder only consumes electricity during movement and maintains zero energy consumption statically, thereby improving the economy and convenience of the driving mechanism 200.

[0043] Specifically, the support member 210 is set as a T-shaped structure. A plurality of second connection holes 211 are provided at the bottom end of the T-shaped structure. The electric cylinder 220 is connected to any one of the second connection holes 211. A plurality of third connection holes 212 are provided at one end of the top of the T-shaped structure. The connecting rod 240 is connected to any one of the third connection holes 212, realizing the flexible assembly of the driving mechanism 200. Through the connecting rod 240 and the two cantilever beams 110, a three-point suspension is formed between the suspension support 100 and the agricultural machinery, further improving the connection stability of the suspension support 100.

[0044] Optionally, the support member 210 is set as a hollow structure. By removing the materials in the non-functional areas, the material consumption is reduced on the premise of ensuring the structural strength, the overall weight of the device is reduced, the transportation and installation costs are lowered, and a standardized wiring channel is provided for the cables.

[0045] Further, the driving mechanism 200 further includes a distance measuring sensor 230. The distance measuring sensor 230 and the housing 310 are arranged on the same side of the mounting beam 120. The distance measuring sensor 230 is signal-connected to the controller. The distance measuring sensor 230 can emit and receive signals, thereby judging the distance between the mounting beam 120 and the agricultural implement to be suspended, and sending the received signal to the controller. The controller can control the telescopic length of the electric cylinder 220 according to the feedback data, thereby controlling the movement distance of the suspension support 100. Optionally, the distance measuring sensor 230 can be set as an ultrasonic sensor, a laser sensor, etc., with mature application technology and convenient installation and maintenance.

[0046] In this embodiment, the ranging sensor 230 is set as a TOF lidar with a wavelength of 905 nm, meeting the Class 1 eye safety standard. The detection range is 0.2 - 2.5 m. The lidar scans to generate the horizontal plane point cloud data of the suspension point. The noise points are filtered by the density clustering algorithm (DBSCAN), and the central coordinates of the mounting beam 120 are extracted. After the coordinate data is normalized, it is sent to the controller. The central coordinates of the mounting beam 120 are converted to the agricultural machinery coordinate system. The controller calculates the target displacement of the electric cylinder 220 according to the principle of similar triangles. The controller sends a pulse command to the servo driver. The electric cylinder 220 is built-in with a 17-bit magnetic encoder to real-time feedback the actual displacement, driving the cantilever 110 to reach the specified position.

[0047] Optionally, the controller can be a centralized or distributed controller. For example, the controller can be a single microcontroller or composed of multiple distributed microcontrollers. A control program can run in the microcontroller to control the ranging sensor 230 and the driving mechanism 200 to realize their functions.

[0048] Optionally, the controller is further provided with an operation panel. The operator can understand the working states of the ranging sensor 230 and the driving mechanism 200 in real time through the operation panel, and then can manually operate to control the telescoping of the electric cylinder 220. The operation panel can be set at different positions as needed. Exemplarily, it can be set in the cockpit or can be hung outside the agricultural machinery, etc.

[0049] Furthermore, the mounting beam 120 is provided with a plurality of positioning grooves 121. The plurality of positioning grooves 121 are arranged in a corrugated shape. The locking assembly 300 includes a fixing part 350 and a positioning pin 360. The fixing part 350 is provided with a fixing groove 351. The fixing groove 351 is buckled on the mounting beam 120. The positioning pin 360 penetrates through the fixing part 350 and is limited in any one of the positioning grooves 121, so that the mounting beam 120 is locked in the fixing groove 351, ensuring the stable connection of the locking assembly 300 on the mounting beam 120, preventing the locking assembly 300 from sliding on the mounting beam 120, and being able to simplify the installation structure of the locking assembly 300, facilitating the adjustment of the installation position of the locking assembly 300 on the mounting beam 120, so as to be applicable to a variety of different farm tools.

[0050] Continue to refer to Figures 4 to 7As shown in the figure, the locking assembly 300 includes a housing 310, an electric mechanism 320, a locking tongue 330, and a connecting member 340. The housing 310 is connected to the fixing portion 350 and is connected to the mounting beam 120. The housing 310 is provided with an inner cavity 311 and a locking groove 312. The electric mechanism 320 is disposed in the inner cavity 311. The locking tongue 330 is slidably connected to the inner cavity 311 and protrudes from the side wall of the locking groove 312. The electric mechanism 320 is used to drive the locking tongue 330 to slide. The connecting member 340 is used to connect agricultural implements. In this embodiment, the connecting member 340 is provided as a round pin, which has a simple structure and a low procurement cost.

[0051] When the electric mechanism 320 controls the locking tongue 330 to slide into the inner cavity 311, the connecting member 340 can enter the locking groove 312. When the locking tongue 330 protrudes from the side wall of the locking groove 312, the connecting member 340 can be fixed between the locking tongue 330 and the bottom wall of the locking groove 312, thereby realizing the fixed installation of the connecting member 340. Using the electric mechanism 320 to fix the connecting member 340 can quickly realize the docking of the agricultural implement and the suspension support, improve the hanging efficiency and accuracy, reduce the operation burden, and adapt to the operation requirements of various agricultural implements.

[0052] Specifically, the electric mechanism 320 includes a solenoid valve 321, a pull rod 322, a movable member 323, and a rotating member 324. One end of the pull rod 322 is slidably connected to the solenoid valve 321, and the other end is rotatably connected to one end of the movable member 323. The other end of the movable member 323 is rotatably connected to the rotating member 324, and the rotating member 324 is rotatably connected to the side wall of the inner cavity 311. The locking tongue 330 is provided with a groove 331, and the end of the rotating member 324 away from the movable member 323 abuts against the inner wall of the groove 331.

[0053] In this embodiment, the controller is electrically connected to the solenoid valve 321. The solenoid valve 321 can be controlled to be energized and de-energized through the controller. When the solenoid valve 321 is energized, it can pull the pull rod 322 to move towards the solenoid valve 321, thereby driving the movable member 323 and the rotating member 324 to rotate and pulling the locking tongue 330 into the inner cavity. When the solenoid valve 321 is de-energized, the pull rod 322, the movable member 323, and the rotating member 324 are reset. At this time, the locking tongue 330 protrudes from the locking groove 312 to realize the fixation of the connecting member 340.

[0054] Optionally, a roller 3241 is provided at the end of the rotating member 324 that abuts against the locking tongue 330, thereby reducing the frictional resistance between the rotating member 324 and the locking tongue 330, ensuring the movement accuracy of the locking tongue 330, and being able to reduce the wear of the rotating member 324 and the locking tongue 330 and extend the service life of the rotating member 324 and the locking tongue 330.

[0055] Furthermore, the electric mechanism 320 further includes a spring 325. An annular boss 3221 is provided at one end of the pull rod 322 away from the solenoid valve 321. The spring 325 is sleeved on the pull rod 322 and is located between the boss 3221 and the solenoid valve 321. When the solenoid valve 321 is energized to pull the pull rod 322, the spring 325 is compressed between the boss 3221 and the solenoid valve 321. When the solenoid valve 321 is de-energized, the spring 325 pushes the pull rod 322 to quickly reset, thereby improving the reaction speed of the locking tongue 330 to reset and realizing the quick fixation of the connecting member 340.

[0056] Optionally, the locking tongue 330 is provided with a limiting portion 332, and a limiting groove 3111 is provided on the inner wall of the inner cavity 311. The limiting groove 3111 extends along the moving direction of the locking tongue 330. The limiting portion 332 is limited in the limiting groove 3111, and the limiting portion 332 slides in the limiting groove 3111, which can not only play a guiding role but also prevent the locking tongue 330 from falling off from the inner cavity 311, ensuring the smooth sliding of the locking tongue 330.

[0057] Furthermore, the locking assembly 300 further includes a cover plate 370. The cover plate 370 covers the opening of the inner cavity 311, preventing foreign matters such as dust from entering the inner cavity 311, ensuring the cleanliness inside the inner cavity 311, and avoiding the influence of foreign matters on the normal operation of the electric mechanism 320.

[0058] Furthermore, the locking assembly 300 further includes a pressure sensor 380. The pressure sensor 380 is fixed to the bottom of the locking groove 312. The pressure sensor 380 is signal-connected to the controller and the solenoid valve 321. When the controller energizes the solenoid valve 321, the solenoid valve 321 pulls the pull rod 322 into the solenoid valve 321, drives the movable member 323 and the rotating member 324 to rotate, the locking tongue 330 enters the inner cavity 311, and the limiting portion 332 reaches the upper limit position of the limiting groove 3111. At this time, the connecting member 340 can enter the locking groove 312, and the spring 325 is in a contracted state at this time. When the connecting member 340 is installed in place, the pressure sensor 380 transmits a signal to the controller, the controller de-energizes the solenoid valve 321, the pull rod 322 extends out, the spring 325 pushes the pull rod 322 outwards, drives the movable member 323 and the rotating member 324 to reset, the roller 3241 abuts against the lower wall of the groove 331, and pushes the locking tongue 330 to move downwards to reach the lower limit position, thereby locking the connecting member 340 in the locking groove 312.

[0059] When using this rapid agricultural machinery suspension device, taking the suspension of agricultural implements by a tractor as an example, first connect the cantilever 110 and the connecting rod 240 to the position of the tractor where the agricultural implement needs to be installed. After the tractor starts, the suspension device enters the standby mode. The controller can set the power-on self-check state, and the position of the electric cylinder 220 returns to zero. The driver operates the tractor to approach the agricultural implement. The controller feeds back the distance in real time through the distance measuring sensor 230. At the same time, the controller transmits a signal to the solenoid valve 321. The solenoid valve 321 is powered on, and the pull rod 322 is sucked in, and the locking tongue 330 rises to the limit position. The controller calculates the data transmitted by the distance measuring sensor 230 to obtain the distance that the electric cylinder 220 needs to extend, and drives the electric cylinder 220 to make the cantilever 110 reach the same horizontal plane as the suspension point of the agricultural implement. The driver operates the tractor to move towards the agricultural implement. The connecting piece 340 is snapped into the locking groove 312 and touches the pressure sensor 380. After being installed in place, when the pressure sensor 380 reaches the preset value, it transmits a signal to the controller. The controller receives the signal and transmits a signal to the solenoid valve 321, causing the solenoid valve 321 to power off. After the locking tongue 330 resets to lock the connecting piece 340, the connection between the agricultural implement and this rapid agricultural machinery suspension device can be completed. This rapid agricultural machinery suspension device has the advantages of simple and compact structure, low cost, reliable performance, high degree of automation, wide application range, etc. It can realize the highly coordinated functions of each component, thus getting rid of the cumbersome manual operations and realizing the semi-automatic control of the hanging process, greatly improving the hanging efficiency.

[0060] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A quick suspension device for agricultural machinery, characterized in that: include: A suspension support (100), the suspension support (100) comprising a cantilever (110) and a mounting beam (120), one end of the cantilever (110) being connected to the mounting beam (120), and the other end being rotatably connected to an agricultural machine to be mounted; A driving mechanism (200), one end of the driving mechanism (200) being connected to the agricultural machine, and the other end of the driving mechanism (200) being connected to the suspension support (100), and the driving mechanism (200) being capable of driving the suspension support (100) to rotate; A locking assembly (300), the locking assembly (300) comprising a housing (310), an electric mechanism (320), a locking tongue (330) and a connecting piece (340), the housing (310) being connected to the mounting beam (120), the housing (310) comprising an inner cavity (311) and a locking groove (312), the electric mechanism (320) being arranged in the inner cavity (311), the locking tongue (330) being slidably connected to the inner cavity (311) and protruding from a side wall of the locking groove (312), the electric mechanism (320) being used for driving the locking tongue (330) to slide, the connecting piece (340) being fixed between the locking tongue (330) and the bottom wall of the locking groove (312), and the connecting piece (340) being used for connecting an agricultural implement; A controller is electrically connected to the driving mechanism (200) and the electric mechanism (320).

2. The agricultural machinery quick suspension device according to claim 1, characterized in that: The electric mechanism (320) includes a solenoid valve (321), a pull rod (322), a movable part (323) and a rotating part (324); one end of the pull rod (322) is slidably connected to the solenoid valve (321), and the other end is rotatably connected to one end of the movable part (323); the other end of the movable part (323) is rotatably connected to the rotating part (324), and the rotating part (324) is rotatably connected to the side wall of the inner cavity (311); the locking tongue (330) is provided with a groove (331), and one end of the rotating part (324) away from the movable part (323) abuts against the inner wall of the groove (331).

3. The agricultural machinery quick suspension device according to claim 2, characterized in that: A roller (3241) is provided at one end of the rotating member (324) abutting against the locking tongue (330).

4. The agricultural machinery quick suspension device according to claim 2, characterized in that: The electric mechanism (320) further comprises a spring (325); an annular boss (3221) is provided at one end of the pull rod (322) away from the solenoid valve (321); the spring (325) is sleeved on the pull rod (322) and is located between the boss (3221) and the solenoid valve (321).

5. The agricultural machinery quick suspension device according to any one of claims 1 to 4, characterized in that: The locking tongue (330) is provided with a limiting portion (332), and a limiting groove (3111) is provided on the inner wall of the inner cavity (311), the limiting groove (3111) extends along the moving direction of the locking tongue (330), and the limiting portion (332) is limited in the limiting groove (3111).

6. The agricultural machinery quick suspension device according to claim 1, characterized in that: The mounting beam (120) is provided with a plurality of positioning grooves (121); the locking assembly (300) is further provided with a fixing portion (350) and a positioning pin (360); the housing (310) is connected to the fixing portion (350); the fixing portion (350) is provided with a fixing groove (351); the fixing groove (351) is buckled to the mounting beam (120); the positioning pin (360) is passed through the fixing portion (350) and is limited in any one of the positioning grooves (121).

7. The agricultural machinery quick suspension device according to claim 1, characterized in that: The suspension support (100) comprises two cantilevers (110), and the two cantilevers (110) are arranged at an interval.

8. The agricultural machinery quick suspension device according to claim 7, characterized in that: The suspension support (100) further comprises a connecting beam (130), wherein the connecting beam (130) is connected between the two cantilevers (110), and the driving mechanism (200) is connected to the connecting beam (130).

9. The agricultural machinery quick suspension device according to claim 1, characterized in that: The driving mechanism (200) comprises a support member (210) and an electric cylinder (220); the support member (210) is rotatably connected to the agricultural machine; the electric cylinder (220) is connected between the support member (210) and the suspension support (100); and the electric cylinder (220) is electrically connected to the controller.

10. The agricultural machinery quick suspension device according to claim 1, characterized in that: The driving mechanism (200) further comprises a distance measuring sensor (230), wherein the distance measuring sensor (230) and the housing (310) are arranged on the same side of the mounting beam (120), and the distance measuring sensor (230) is connected to the controller signal.

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