A folding boom shock absorbing support structure for an intelligent boom sprayer
By combining hydraulic oil and dampers inside the hydraulic sleeve with a shock-absorbing support structure consisting of disc springs and rubber springs, the problem of swaying during vibration of the folding spray boom of the boom sprayer is solved, achieving uniform spraying of the pesticide and extending the service life of the equipment, while improving the operating accuracy and safety of the sprayer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI HUAYANBAO PRECISION MACHINERY CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-08-04
AI Technical Summary
The folding boom of existing boom sprayers is prone to violent shaking during operation or transportation due to road bumps and mechanical vibrations. This can cause the nozzle to shift position, resulting in uneven spraying of pesticides, which affects the plant protection effect. In addition, frequent vibrations shorten the equipment life and pose safety hazards.
The vibration damping support structure adopts a hydraulic sleeve filled with hydraulic oil, combined with disc springs, rubber springs and dampers. It consumes vibration energy through the conversion of damping force and frictional heat energy. At the same time, it uses polyurethane filler blocks and multi-layer rubber blocks to absorb multi-dimensional vibrations and dynamically adjusts the damping force to enhance the vibration damping effect.
It effectively reduces spray boom sway, ensures uniform spraying of the liquid, improves spraying accuracy, extends equipment life, enhances safety, and guarantees operational precision and safety.
Smart Images

Figure CN224584043U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of boom sprayer technology, and in particular to a folding boom shock-absorbing support structure for an intelligent boom sprayer. Background Technology
[0002] A boom sprayer is a type of agricultural plant protection machinery. It primarily uses a retractable or foldable boom to mount nozzles. During operation, a power unit drives a liquid pump to pressurize the pesticide solution, which is then atomized by the boom nozzles and evenly sprayed onto crops for pest and disease control, fertilization, and other applications. Its boom structure is designed to adapt to different farmland scenarios, enabling efficient and large-area plant protection operations, making it an important piece of equipment for improving operational efficiency in modern agricultural production.
[0003] In the current technology, in order to adapt to the needs of different spraying environments, most spray booms are designed with a folding structure, which is convenient for extension or retraction. However, during operation or transportation, folding spray booms are prone to violent shaking due to road bumps, mechanical vibrations, etc., which can cause the nozzle position to shift and the spray solution to be sprayed unevenly, affecting the plant protection effect. At the same time, frequent vibration will shorten the service life of the spray boom connection and folding joints, posing safety hazards and affecting the accuracy of operation.
[0004] Therefore, we propose a folding boom shock-absorbing support structure for an intelligent boom sprayer to solve the above problems. Utility Model Content
[0005] In order to solve the problem that folding booms are prone to violent shaking during operation or transportation due to road bumps, mechanical vibrations, etc., this application provides a shock-absorbing support structure for the folding boom of an intelligent boom sprayer.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a folding spray boom shock-absorbing support structure for an intelligent boom sprayer, comprising a connecting base fixedly installed on the chassis of the boom sprayer body, a connecting bracket slidably sleeved on the top of the connecting base, and a folding spray boom detachably installed on one side of the connecting bracket; and four hydraulic sleeves fixedly installed on the top of the connecting base.
[0007] A further feature of this invention is that the interiors of all four hydraulic sleeves are filled with hydraulic oil.
[0008] By adopting the above technical solution, the hydraulic oil has viscosity and will generate damping force when passing through the oil hole.
[0009] A further feature of this invention is that: each of the four hydraulic sleeves has a sliding hole at its top, and a hydraulic rod is slidably installed on the inner side of each of the four sliding holes. A piston is fixedly installed at the bottom end of each hydraulic rod, and the four pistons are slidably installed on the inner side of their respective hydraulic sleeves. Each of the four pistons has an oil hole at its top.
[0010] By adopting the above technical solution, the damping force generated when the oil passes through the oil hole can hinder the movement of the piston 10, converting the kinetic energy of vibration into the frictional heat energy of hydraulic oil flow, thereby consuming vibration energy.
[0011] A further feature of this invention is that dampers are fixedly installed at the top of each of the four hydraulic rods, and the tops of the four dampers are fixedly connected to the bottom of the same connecting bracket.
[0012] By adopting the above technical solution, the damper can dynamically adjust its damping force according to the intensity and frequency of vibration, thereby further enhancing the vibration reduction effect.
[0013] A further feature of this invention is that: a rubber spring is fixedly installed on the top of each of the four hydraulic sleeves, and a disc spring is fitted on the outer side of each of the four hydraulic sleeves; the tops of the four disc springs and the tops of the four rubber springs are respectively fixedly connected to the corresponding dampers.
[0014] By adopting the above technical solution, the disc spring, with its conical structure, can withstand a large load with a small amount of deformation when subjected to axial pressure, and quickly absorb the initial impact force generated by vibration.
[0015] A further feature of this invention is that a polyurethane filling block is fixedly installed on the top of the connecting base, and the top of the polyurethane filling block is fixedly connected to the bottom of the connecting bracket.
[0016] By adopting the above technical solution, polyurethane material, due to its high elasticity, wear resistance, and impact resistance, can complement the rubber layer.
[0017] A further feature of this invention is that a threaded support is fixedly installed on the top of the connecting base, and a natural rubber block, a butyl rubber block, and a neoprene rubber block are sequentially fixedly sleeved on the outer side of the threaded support from top to bottom. The top of the natural rubber block abuts against the bottom of the connecting bracket, and the bottom of the neoprene rubber block is fixedly connected to the top of the connecting base.
[0018] By adopting the above technical solutions, multidimensional vibrations can be efficiently absorbed and attenuated, reducing the amplitude of spray boom sway and improving spray accuracy.
[0019] A further feature of this invention is that a limiting base is fixedly sleeved on the outer side of the neoprene rubber block, and a buffer rubber ring is fixedly installed on the top of the limiting base.
[0020] By adopting the above technical solution, the limiting base can prevent excessive instantaneous impact force from deforming the rubber block, which could lead to rigid collision between the connecting base and the connecting bracket, causing damage.
[0021] This application includes at least one of the following beneficial technical effects: by using disc springs, rubber springs, and hydraulic rods, the energy generated by road bumps and mechanical vibrations can be effectively absorbed, reducing spray boom swaying, keeping the nozzle stable, ensuring uniform spraying of pesticides, improving plant protection effects, and extending the service life of the equipment. It also effectively reduces the vibration of the spray boom during operation, ensuring the uniformity and accuracy of spraying while improving the safety of the equipment. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of a folding boom shock-absorbing support structure for an intelligent boom sprayer proposed in this embodiment; Figure 2 This is a three-dimensional structural breakdown diagram of the folding boom shock-absorbing support structure of an intelligent boom sprayer proposed in this embodiment; Figure 3 This is a three-dimensional structural diagram of the connecting base, disc spring, damper, and boom bracket of the folding boom shock-absorbing support structure of an intelligent boom sprayer proposed in this embodiment; Figure 4 This is a three-dimensional cross-sectional view of the disc spring, rubber spring, and hydraulic rod of the folding boom shock-absorbing support structure of an intelligent boom sprayer proposed in this embodiment; Figure 5 This is a three-dimensional structural breakdown diagram of the polyurethane filling block, threaded support column, and limiting base of the folding spray boom shock-absorbing support structure of the intelligent boom sprayer proposed in this embodiment.
[0023] In the diagram, 1. Main body of the boom sprayer; 2. Connecting base; 3. Connecting bracket; 4. Folding boom; 5. Damper; 6. Disc spring; 7. Rubber spring; 8. Hydraulic sleeve; 9. Hydraulic rod; 10. Piston; 11. Polyurethane filler block; 12. Threaded support; 13. Natural rubber block; 14. Butyl rubber block; 15. Neoprene rubber block; 16. Limiting base; 17. Buffer rubber ring. Detailed Implementation
[0024] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0025] This application discloses a folding boom shock-absorbing support structure for an intelligent boom sprayer, including a connecting base 2 fixedly installed on the chassis of the boom sprayer body 1, a connecting bracket 3 slidably sleeved on the top of the connecting base 2, a folding boom 4 detachably installed on one side of the connecting bracket 3, and four hydraulic sleeves 8 fixedly installed on the top of the connecting base 2.
[0026] Specifically, the interiors of the four hydraulic sleeves 8 are all filled with hydraulic oil. The hydraulic oil is viscous and generates a damping force when passing through the oil holes.
[0027] Specifically, each of the four hydraulic sleeves 8 has a sliding hole at its top, and a hydraulic rod 9 is slidably installed on the inner side of each of the four sliding holes. A piston 10 is fixedly installed at the bottom end of the hydraulic rod 9. The four pistons 10 are slidably installed on the inner side of their respective hydraulic sleeves 8. Each of the four pistons 10 has an oil hole at its top. The damping force generated when the oil passes through the oil hole can resist the movement of the piston 10, converting the kinetic energy of vibration into the frictional heat energy of the hydraulic oil flow, thereby consuming the vibration energy.
[0028] Specifically, dampers 5 are fixedly installed at the top of each of the four hydraulic rods 9. The tops of the four dampers 5 are fixedly connected to the bottom of the same connecting bracket 3. The dampers 5 can dynamically adjust their damping force according to the intensity and frequency of vibration, thereby further enhancing the shock absorption effect.
[0029] Specifically, rubber springs 7 are fixedly installed on the top of each of the four hydraulic sleeves 8, and disc springs 6 are fitted on the outer side of each of the four hydraulic sleeves 8. The tops of the four disc springs 6 and the tops of the four rubber springs 7 are fixedly connected to the corresponding dampers 5. With its conical structure, the disc spring 6 can withstand a large load with a small amount of deformation when subjected to axial pressure, and quickly absorb the initial impact force generated by vibration.
[0030] Specifically, a polyurethane filler block 11 is fixedly installed on the top of the connecting base 2. The top of the polyurethane filler block 11 is fixedly connected to the bottom of the connecting bracket 3. Polyurethane material has high elasticity, wear resistance, impact resistance and other properties, which can complement the rubber layer.
[0031] Specifically, a threaded support column 12 is fixedly installed on the top of the connecting base 2. From top to bottom, a natural rubber block 13, a butyl rubber block 14, and a neoprene rubber block 15 are fixedly fitted on the outer side of the threaded support column 12. The top of the natural rubber block 13 abuts against the bottom of the connecting bracket 3, and the bottom of the neoprene rubber block 15 is fixedly connected to the top of the connecting base 2. This can effectively absorb and attenuate multidimensional vibrations, reduce the amplitude of spray boom swaying, and improve spray accuracy.
[0032] Specifically, a limiting base 16 is fixedly sleeved on the outer side of the neoprene block 15, and a buffer rubber ring 17 is fixedly installed on the top of the limiting base 16. The limiting base 16 can prevent the rubber block from deforming due to excessive instantaneous impact force, which would cause the connecting base 2 and the connecting bracket 3 to collide rigidly and cause damage.
[0033] Working Principle: During operation, the intelligent boom sprayer generates vibrations due to road bumps and mechanical vibrations. These vibrations are transmitted upwards through the connecting base 2 to the connecting bracket 3. During this process, the impact force first contacts the disc spring 6. The disc spring 6 and the rubber spring 7 then take effect. The disc spring 6, with its conical structure, withstands a large load with minimal deformation under axial pressure, quickly absorbing the initial impact force. The rubber spring 7, utilizing its excellent elasticity and non-linear characteristics, responds quickly to high-frequency, minute vibrations, converting vibration energy into internal frictional heat energy of rubber molecules, initially reducing vibration intensity and thus mitigating the impact force. Simultaneously, the vibration drives the hydraulic rod 9 to move up and down. Driven by the hydraulic rod 9, the piston 10 reciprocates within the hydraulic sleeve 8. As the piston 10 moves, the hydraulic oil in the hydraulic sleeve 8 flows to the other side through the oil hole on the piston 10. Due to the viscosity of the hydraulic oil, a damping force is generated when passing through the narrow channel. This damping force resists the piston... The movement of the 10 converts the kinetic energy of the vibration into the frictional heat energy of the hydraulic oil flow, thereby consuming the vibration energy and slowing down the transmission speed and amplitude of the vibration. At the same time, the damper 5 cooperates with the hydraulic rod 9 to dynamically adjust its own damping force according to the intensity and frequency of the vibration, further enhancing the shock absorption effect. At this time, the weakened impact force continues to be transmitted upward through the connecting base 2, and then passes through the neoprene rubber block 15, butyl rubber block 14 and natural rubber block 13 in sequence. The neoprene rubber block 15 first buffers and plays a protective role, preventing the vibration from damaging the connecting bracket 3. The butyl rubber block 14 consumes a large amount of vibration energy due to its honeycomb structure and high damping characteristics. The natural rubber block 13 finely processes the residual vibration, and the setting of the limiting base 16 can prevent the rubber block from deforming due to excessive instantaneous impact force, which would cause the connecting base 2 and the connecting bracket 3 to collide and cause damage. At this time, after the vibration has been buffered and weakened twice, the impact force is relatively weak and will not affect the folding spray bar 4, effectively improving the uniformity and accuracy of spraying.
[0034] Through the above structure, the folding boom shock-absorbing support structure of the intelligent boom sprayer provided in this application, through the setting of disc spring 6, rubber spring 7 and hydraulic rod 9, can effectively absorb the energy generated by road bumps, mechanical vibrations, etc., reduce the shaking of the folding boom 4, keep the nozzle stable, ensure uniform spraying of liquid, improve plant protection effect, and extend the service life of the equipment. It effectively reduces the vibration of the boom during operation, ensures the uniformity and accuracy of spraying, and also improves the safety of the equipment.
[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A folding boom shock-absorbing support structure for an intelligent boom sprayer, characterized in that, A connecting base (2) is fixedly installed on the chassis of the main body (1) of the boom sprayer. A connecting bracket (3) is slidably sleeved on the top of the connecting base (2). A folding boom (4) is detachably installed on one side of the connecting bracket (3). Four hydraulic sleeves (8) are fixedly installed on the top of the connecting base (2).
2. The folding boom shock-absorbing support structure of the intelligent boom sprayer according to claim 1, characterized in that: The interiors of the four hydraulic sleeves (8) are all filled with hydraulic oil.
3. The folding boom shock-absorbing support structure for an intelligent boom sprayer according to claim 2, characterized in that: Each of the four hydraulic sleeves (8) has a sliding hole at its top, and a hydraulic rod (9) is slidably installed on the inner side of each of the four sliding holes. A piston (10) is fixedly installed at the bottom of the hydraulic rod (9). The four pistons (10) are slidably installed on the inner side of the corresponding hydraulic sleeves (8), and an oil hole is opened at the top of each of the four pistons (10).
4. The folding boom shock-absorbing support structure of an intelligent boom sprayer according to claim 3, characterized in that: Dampers (5) are fixedly installed at the top of each of the four hydraulic rods (9), and the tops of the four dampers (5) are fixedly connected to the bottom of the same connecting bracket (3).
5. The folding boom shock-absorbing support structure of an intelligent boom sprayer according to claim 4, characterized in that: Rubber springs (7) are fixedly installed on the top of each of the four hydraulic sleeves (8), and disc springs (6) are fitted on the outside of each of the four hydraulic sleeves (8). The tops of the four disc springs (6) and the tops of the four rubber springs (7) are fixedly connected to the corresponding dampers (5).
6. The folding boom shock-absorbing support structure of an intelligent boom sprayer according to claim 1, characterized in that: A polyurethane filling block (11) is fixedly installed on the top of the connecting base (2), and the top of the polyurethane filling block (11) is fixedly connected to the bottom of the connecting bracket (3).
7. The folding boom shock-absorbing support structure of an intelligent boom sprayer according to claim 6, characterized in that: A threaded support column (12) is fixedly installed on the top of the connecting base (2). A natural rubber block (13), a butyl rubber block (14) and a neoprene rubber block (15) are fixedly fitted on the outer side of the threaded support column (12) from top to bottom. The top of the natural rubber block (13) abuts against the bottom of the connecting bracket (3), and the bottom of the neoprene rubber block (15) is fixedly connected to the top of the connecting base (2).
8. The folding boom shock-absorbing support structure of an intelligent boom sprayer according to claim 7, characterized in that: A limiting base (16) is fixedly sleeved on the outside of the neoprene rubber block (15), and a buffer rubber ring (17) is fixedly installed on the top of the limiting base (16).