A balancing device for agricultural machines
By designing an agricultural machinery balancing device with a telescopic drive assembly, a spring buffer assembly, and a conical walking ball, the problems of terrain adaptability and installation versatility of traditional devices in dynamic terrain have been solved, thereby improving the stability and comfort of agricultural machinery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNMING UNIV OF SCI & TECH
- Filing Date
- 2025-05-14
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional agricultural machinery balancing devices are difficult to adapt to dynamic terrain changes, resulting in insufficient terrain adaptability, lack of impact buffering, and poor installation versatility, which affects operational accuracy and safety.
A balancing device was designed, comprising a telescopic drive assembly, a spring buffer assembly, and a conical walking ball. The telescopic drive assembly adjusts the angle and length of the outriggers, the spring buffer assembly absorbs vibration energy, and the conical walking ball reduces friction, thereby achieving dynamic balance and stability.
It improves the center of gravity stability of agricultural machinery in complex terrain, reduces the risk of rollover, reduces component wear, enhances driving comfort and maneuverability, and simplifies the installation process.
Smart Images

Figure CN224476918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery parts technology, specifically to a balancing device for agricultural machinery. Background Technology
[0002] When agricultural machinery operates in the field, it often faces complex terrains such as slopes, furrows, and mud. The stability of the chassis directly affects the accuracy of operation and the safety of the equipment. Traditional agricultural machinery balancing devices are mostly fixed rigid structures or only have simple height adjustment functions, which are difficult to adapt to dynamic terrain changes and are prone to the following problems: Insufficient terrain adaptability: Fixed outriggers cannot adjust their angle with the undulations of the ground, which can easily lead to single-point suspension or local overload, causing the agricultural machinery to tilt; Lack of impact buffering: Rigid connections cause ground vibrations to be directly transmitted to the chassis, which aggravates component wear and affects the accuracy of operation; Poor installation versatility: Fixed clamping structures are difficult to adapt to different models of agricultural machinery bases, requiring customized modifications and increasing production costs. Utility Model Content
[0003] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a balancing device for agricultural machinery, disposed on both sides of the agricultural machinery base, including a back plate connected to both sides of the agricultural machinery base, a clamping assembly connected to the agricultural machinery base on one side of the back plate, and a balancing assembly on the other side, wherein there are two or more sets of balancing assemblies, which are evenly disposed on the outer side of the back plate; the balancing assembly includes a mounting member connected to the back plate, a telescopic support leg rotatably connected to the bottom of the mounting member, a balancing support leg connected to the end of the telescopic support leg away from the mounting member through a spring buffer assembly, a walking ball disposed at the end of the balancing support leg in contact with the ground, a telescopic drive assembly rotatably connected to the top of the telescopic support leg, and the other end of the telescopic drive assembly rotatably connected to the top of the mounting member.
[0004] Furthermore, the mounting component includes a base plate connected to the back plate, and first side plates are respectively provided on both sides of the base plate. The telescopic outrigger and the telescopic drive assembly are rotatably connected between the first side plates.
[0005] Furthermore, the telescopic outrigger includes a fixed leg. One end of the fixed leg extends between the first side plates via a rotating plate and is rotatably connected to the first side plate via a rotating shaft. The fixed leg has a hollow structure and an opening at the end away from the rotating plate. A movable leg is telescopically connected to the opening. The movable leg has a hollow structure and an opening at the end away from the fixed leg. A spring buffer assembly is installed inside the cavity of the movable leg, and the other end of the spring buffer assembly is connected to the balance outrigger.
[0006] Furthermore, the movable leg is provided with sliding grooves on both sides, and the fixed leg is provided with a slider corresponding to the sliding groove at one of its openings, so that the slider moves within the sliding groove when the movable leg extends or retracts within the fixed leg.
[0007] Furthermore, the spring buffer assembly includes a bottom rod connected to the bottom surface of the moving leg cavity, a top rod telescopically connected to the other end of the bottom rod, and a buffer spring sleeved on the top rod and the bottom rod. The two ends of the buffer spring are respectively connected to the bottom surface of the moving leg cavity and the balance support leg.
[0008] Furthermore, a conical walking ball mounting base is provided at the end of the balancing support leg away from the moving leg, and a walking ball is rotatably mounted inside the conical walking ball mounting base.
[0009] Furthermore, the telescopic drive assembly includes a multi-stage electric telescopic rod, with a rotating plate two at one end and a rotating plate three at the other end. The rotating plate two is disposed between the second side plates via a rotating shaft two. The second side plates are disposed on the upper part of the end of the moving leg away from the fixed leg. The rotating plate three extends into the first side plates and is rotatably connected to the first side plates via the rotating shaft three.
[0010] Furthermore, the clamping assembly includes an upper clamping plate and a lower clamping plate arranged opposite to each other. An array of vertical moving channels is provided on the back plate. An electric screw is provided in the moving channel. The surface of the electric screw is provided with bidirectional threads with opposite directions of rotation. The upper clamping plate and the lower clamping plate are respectively set on the thread segments with different directions of rotation by moving blocks.
[0011] Furthermore, the back plate has a long threaded hole in the middle that connects to the side of the agricultural machinery base.
[0012] The advantages of this utility model compared with the prior art are as follows:
[0013] This invention utilizes a telescopic drive assembly in conjunction with telescopic outriggers to dynamically adjust the angle and length of the outriggers. When the agricultural machinery travels on uneven roads or slopes, the telescopic drive assembly can drive the telescopic outriggers to rotate around the pivot axis in real time. Combined with the sliding extension and retraction of the movable leg within the fixed leg, the walking ball of the balancing outrigger ultimately contacts the ground, ensuring that the agricultural machinery maintains a stable center of gravity in complex terrain and avoiding the risk of tipping over.
[0014] This utility model integrates a spring buffer assembly into the cavity of the moving leg. When the walking ball contacts an uneven ground, the impact force is transmitted to the buffer spring through the balancing support leg. The spring compression absorbs the vibration energy, reducing the rigid impact on the agricultural machinery chassis. This structure can protect the precision components inside the agricultural machinery and improve driving comfort. It is especially suitable for bumpy scenarios such as hills and terraced fields.
[0015] The conical walking ball mounting base at the end of the outrigger of this utility model allows the walking ball to rotate 360°, eliminating the need to raise the outrigger when the agricultural machinery is turning. The walking ball automatically adjusts its contact direction based on ground friction, reducing turning resistance and improving the maneuverability of the agricultural machinery in narrow fields or orchards. Compared to traditional rigid outriggers, this design reduces ground friction wear and extends component life.
[0016] This utility model adopts a bidirectional threaded structure driven by an electric screw. By moving the upper and lower clamping plates in opposite directions, the side of the agricultural machinery base can be quickly clamped or released. With the long threaded hole in the middle of the back plate, it can not only adapt to agricultural machinery bases of different sizes, but also achieve double fastening through bolt fixing. The installation process does not require precise manual alignment, which greatly improves the assembly efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the front structure of a balancing device for agricultural machinery according to this utility model.
[0018] Figure 2 This is a schematic diagram of the rear structure of a balancing device for agricultural machinery according to this utility model.
[0019] Figure 3 This is a schematic diagram of the balancing component in a balancing device for agricultural machinery according to this utility model.
[0020] Figure 4 This is a schematic diagram of the structure of a spring buffer assembly in a balancing device for agricultural machinery according to this utility model.
[0021] Figure 5 This is a schematic diagram of the structure of a balancing device for agricultural machinery in use according to this utility model. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0023] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of the embodiments of this utility model, "a plurality of" means at least two.
[0026] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] Example:
[0028] A balancing device for agricultural machinery is provided on both sides of the agricultural machinery base, including a back plate 1 connected to both sides of the agricultural machinery base. A clamping component 2 connected to the agricultural machinery base is provided on one side of the back plate 1, and a balancing component 3 is provided on the other side. The number of balancing components 3 is two or more, and they are evenly arranged on the outside of the back plate 1.
[0029] The balancing assembly 3 includes a mounting member 301 connected to the back plate 1. A telescopic outrigger 302 is rotatably connected to the bottom of the mounting member 301. A balancing outrigger 304 is connected to the end of the telescopic outrigger 302 away from the mounting member 301 via a spring buffer assembly 303. A walking ball 305 is provided at the end of the balancing outrigger 304 that contacts the ground. A telescopic drive assembly 306 is rotatably connected to the top of the telescopic outrigger 302. The other end of the telescopic drive assembly 306 is rotatably connected to the top of the mounting member 301. When the agricultural machinery travels on different terrains, the telescopic drive assembly 306 can extend and retract according to the terrain conditions, thereby driving the telescopic outrigger 302 to rotate around the rotational connection point with the mounting member 301, adjusting the extension angle of the telescopic outrigger 302 to adapt to different ground conditions and ensure that the balancing device can effectively perform its balancing function.
[0030] Mounting component 301 includes a base plate 301a connected to the back plate 1. First side plates 301b are respectively provided on both sides of the base plate 301a. Telescopic outriggers 302 and telescopic drive assembly 306 are rotatably connected between the first side plates 301b. The first side plates 301b provide a rotatable support structure for the telescopic outriggers 302 and the telescopic drive assembly 306, allowing them to rotate flexibly between the first side plates 301b, thus providing a basis for the operation of the entire balancing assembly 3.
[0031] The telescopic outrigger 302 includes a fixed leg 302a. One end of the fixed leg 302a extends between the first side plates 301b via a rotating plate 302b and is rotatably connected to the first side plate 301b via rotating shafts 306e-302c. The fixed leg 302a has a hollow structure, and an opening is provided at the end away from the rotating plate 302b. A movable leg 302d is telescopically connected to this opening. The movable leg 302d has a hollow structure, and an opening is provided at the end away from the fixed leg 302a. A spring buffer assembly 303 is disposed in the cavity of the movable leg 302d. The other end of the spring buffer assembly 303 is connected to a balancing outrigger 304. When the telescopic drive assembly 306 is activated, it drives the fixed leg 302a to rotate around the rotating shafts 306e-302c. At the same time, the movable leg 302d can telescopically move at the opening of the fixed leg 302a to adjust the overall length of the telescopic outrigger 302.
[0032] The movable leg 302d has sliding grooves 302e on both sides, and a slider 302f corresponding to the sliding groove 302e is provided at one opening of the fixed leg 302a. This allows the slider 302f to move within the sliding groove 302e when the movable leg 302d extends or retracts within the fixed leg 302a. The cooperation between the slider 302f and the sliding groove 302e ensures the stability and smoothness of the movable leg 302d when extending or retracting within the fixed leg 302a, preventing the movable leg 302d from shifting or jamming during the extension or retraction process, and ensuring that the telescopic support leg 302 can be reliably adjusted in length.
[0033] The spring buffer assembly 303 includes a base rod 303a connected to the bottom surface of the cavity of the movable leg 302d. A top rod 303b is telescopically connected to the other end of the base rod 303a. The other end of the top rod 303b is connected to the balance leg 304. A buffer spring 303c is sleeved on the top rod 303b and the base rod 303a. Both ends of the buffer spring 303c are connected to the bottom surface of the cavity of the movable leg 302d and the balance leg 304, respectively. When the agricultural machinery travels on uneven ground, the impact force on the balance leg 304 is transmitted through the top rod 303b to the buffer spring 303c and the base rod 303a. The buffer spring 303c absorbs and buffers the impact force from the ground, reducing the impact on the agricultural machinery and making the machinery travel more smoothly. Meanwhile, the telescopic movement of the top rod 303b on the bottom rod 303a, combined with the compression and extension of the buffer spring 303c, can adapt to different degrees of ground undulations, ensuring that the balance support leg 304 always maintains good contact with the ground.
[0034] A conical travel ball mounting base 304a is provided at the end of the outrigger 304 away from the moving leg 302d, and a travel ball 305 is rotatably mounted within the conical travel ball mounting base 304a. The travel ball 305 can rotate freely within the conical travel ball mounting base 304a. When the agricultural machinery turns or travels on irregular ground, the travel ball 305 can flexibly change the direction of contact with the ground, reducing the impact of ground friction on the agricultural machinery, enabling the agricultural machinery to move more flexibly, and further improving the balance effect of the balancing device.
[0035] The telescopic drive assembly 306 includes a multi-stage electric telescopic rod 306a. One end of the multi-stage electric telescopic rod 306a is equipped with a second rotating plate 306b, and the other end is equipped with a third rotating plate 306d. The second rotating plate 306b is positioned between second side plates 307 via rotating shafts 306e and 306c. The second side plates 307 are located on the upper part of the end of the movable leg 302d away from the fixed leg 302a. The third rotating plate 306d extends between first side plates 301b and is rotatably connected to the first side plate 301b via rotating shaft 306e. The multi-stage electric telescopic rod 306a, as the core component of the telescopic drive assembly 306, achieves telescopic movement through electrical power. When it is necessary to adjust the angle or length of the telescopic outrigger 302, the multi-stage electric telescopic rod 306a extends or shortens, driving the rotating plate 306b and the rotating plate 306d to rotate around the rotating shafts 306e and 306c and 306e respectively, thereby driving the telescopic outrigger 302 so that it can make corresponding adjustments according to actual needs.
[0036] The clamping assembly 2 includes an upper clamping plate 201 and a lower clamping plate 202 arranged opposite to each other. The back plate 1 has an array of vertical moving channels 203, within which an electric screw 204 is installed. The surface of the electric screw 204 has bidirectional threads with opposite directions of rotation. The upper clamping plate 201 and the lower clamping plate 202 are respectively positioned on different thread segments via moving blocks. When the balancing device needs to be installed on the agricultural machinery base, the electric screw 204 is activated. The electric screw 204 rotates, and due to its bidirectional threads with opposite directions of rotation, the upper clamping plate 201 and the lower clamping plate 202, positioned on different thread segments, move in opposite directions within the vertical moving channels 203 via the moving blocks. This adjusts the distance between the upper clamping plate 201 and the lower clamping plate 202, firmly clamping the back plate 1 to both sides of the agricultural machinery base. The back plate 1 has a long threaded hole 101 in the middle that connects to the side of the agricultural machinery base. The long threaded hole 101 provides more installation position options for the connection between the back plate 1 and the agricultural machinery base. By connecting the back plate 1 and the agricultural machinery base with bolts or other connecting parts through the long threaded hole 101, the stability and reliability of the connection between the balancing device and the agricultural machinery base are further enhanced.
[0037] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A balancing device for agricultural machinery, disposed on both sides of the base of the agricultural machinery, characterized in that, The system includes a backplate connected to both sides of the agricultural machinery base. One side of the backplate is provided with a clamping assembly connected to the agricultural machinery base, and the other side is provided with a balancing assembly. The number of balancing assemblies is at least two sets, which are evenly distributed on the outer side of the backplate. The balancing assembly includes a mounting piece connected to the backplate. A telescopic support leg is rotatably connected to the bottom of the mounting piece. The end of the telescopic support leg away from the mounting piece is connected to a balancing support leg through a spring buffer assembly. A walking ball is provided at the end of the balancing support leg that contacts the ground. A telescopic drive assembly is rotatably connected to the top of the telescopic support leg. The other end of the telescopic drive assembly is rotatably connected to the top of the mounting piece.
2. The balancing device for agricultural machinery according to claim 1, characterized in that, The mounting component includes a base plate connected to the back plate, and first side plates are respectively provided on both sides of the base plate. The telescopic outriggers and the telescopic drive assembly are rotatably connected between the first side plates.
3. A balancing device for agricultural machinery according to claim 1, characterized in that, The telescopic outrigger includes a fixed leg. One end of the fixed leg extends between the first side plates via a rotating plate and is rotatably connected to the first side plate via a rotating shaft. The fixed leg has a hollow structure and an opening at the end away from the rotating plate. A movable leg is telescopically connected to the opening. The movable leg has a hollow structure and an opening at the end away from the fixed leg. A spring buffer assembly is installed inside the cavity of the movable leg, and the other end of the spring buffer assembly is connected to the balance outrigger.
4. A balancing device for agricultural machinery according to claim 3, characterized in that, The movable leg is provided with sliding grooves on both sides, and a slider corresponding to the sliding groove is provided at the opening of the fixed leg, so that the slider moves in the sliding groove when the movable leg extends and retracts in the fixed leg.
5. A balancing device for agricultural machinery according to claim 1, characterized in that, The spring buffer assembly includes a bottom rod connected to the bottom surface of the cavity of the moving leg, a top rod telescopically connected to the other end of the bottom rod, and a buffer spring sleeved on the top rod and the bottom rod. The two ends of the buffer spring are respectively connected to the bottom surface of the cavity of the moving leg and the balance support leg.
6. A balancing device for agricultural machinery according to claim 1, characterized in that, A conical walking ball mounting base is provided at the end of the balancing support leg away from the moving leg, and a walking ball is rotatably mounted inside the conical walking ball mounting base.
7. A balancing device for agricultural machinery according to claim 1, characterized in that, The telescopic drive assembly includes a multi-stage electric telescopic rod. One end of the multi-stage electric telescopic rod is provided with a second rotating plate, and the other end is provided with a third rotating plate. The second rotating plate is disposed between the second side plates via a second rotating shaft. The second side plates are disposed on the upper part of the end of the moving leg away from the fixed leg. The third rotating plate extends into the first side plates and is rotatably connected to the first side plates via the third rotating shaft.
8. A balancing device for agricultural machinery according to claim 1, characterized in that, The clamping assembly includes an upper clamping plate and a lower clamping plate arranged opposite to each other. An array of vertical moving channels is provided on the back plate. An electric screw is provided in the moving channel. The surface of the electric screw is provided with bidirectional threads with opposite directions of rotation. The upper clamping plate and the lower clamping plate are respectively set on the thread segments with different directions of rotation by moving blocks.
9. A balancing device for agricultural machinery according to claim 1, characterized in that, The back plate has a long threaded hole in the middle that connects to the side of the agricultural machinery base.