Vibration damping bridge device for sprayers

Abstract

This utility model discloses a vibration damping bridge device for a sprayer, including a vertically floating guide device disposed between the axle and the frame of the sprayer. The vertically floating guide device includes a guide sleeve fixedly connected to the frame, a guide post slidably fitted inside the guide sleeve, the lower end of the guide post extending out of the guide sleeve and fixedly connected to the axle, and the upper end of the guide post extending out of the guide sleeve and equipped with a sliding stop device. An elastic vibration damping device is also provided between the frame and the axle. This utility model is suitable for installations with limited space between the axle and the frame of a sprayer, reduces the vertical swing of the working arm, avoids uneven spraying of pesticide due to nozzle instability, and ensures effective spraying. At the same time, this utility model greatly improves the comfort of the operator when the sprayer is working.

Description

Technical Field

[0001] This utility model relates to sprayer technology, and more particularly to a vibration damping bridge device for a sprayer. Background Technology

[0002] A sprayer is a common agricultural application machine widely used for pest and disease control in crops such as cotton, wheat, rice, and corn. Currently, most sprayers on the market consist of a frame mounted on a wheeled axle. The frame houses the pesticide tank, power mechanism, and control mechanism. An extendable boom is mounted at the front, with nozzles mounted on it. During operation, the sprayer moves across the field via the power and control mechanisms. Simultaneously, the boom extends, and a pump delivers the pesticide solution from the tank to the nozzles for spraying. However, due to the large extension length of the boom and the fact that most sprayers operate at high ground clearance, the limited space between the axle and frame for this purpose often prevents the installation and use of current vibration damping mechanisms. This results in the sprayer experiencing up-and-down vibrations during operation and travel due to uneven field surfaces. These vibrations are amplified when transmitted to the extended boom, causing unstable nozzle operation, uneven pesticide spraying, and ultimately affecting the spraying effect. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a vibration damping bridge device for a sprayer that is suitable for the spatial structure between the axle and frame of a sprayer, reduces frame vibration, and ensures stable nozzle operation and spraying effect.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a vibration damping bridge device for a sprayer, including an up-and-down floating guide device disposed between the axle and the frame of the sprayer. The up-and-down floating guide device includes a guide sleeve fixedly connected to the frame. A guide post is slidably fitted inside the guide sleeve. The lower end of the guide post extends out of the guide sleeve and is fixedly connected to the axle. The upper end of the guide post extends out of the guide sleeve and is equipped with a sliding stop device. An elastic vibration damping device is also provided between the frame and the axle.

[0005] As a preferred technical solution, the guide sleeve is fixedly connected to the longitudinal beam of the vehicle frame, and the inner and outer sides of the longitudinal beam are respectively fixedly connected to the guide sleeve, and the guide post is slidably fitted inside the two guide sleeves respectively.

[0006] As a preferred technical solution, the elastic vibration damping device includes a lower base that is detachably and fixedly connected to the axle and an upper base that is detachably and fixedly connected to the longitudinal beam. The lower ends of the two guide columns are respectively fixedly connected to the lower base. A vibration damping spring is provided between the lower base and the upper base, and the vibration damping spring is located between the two guide columns.

[0007] As a preferred technical solution, there are four damping springs, and each damping spring is arranged in pairs, symmetrically with the line connecting the two guide posts as the center line.

[0008] As a preferred technical solution, there are two damping springs, and the two damping springs are located on the line connecting the two guide posts.

[0009] As a preferred technical solution, a connecting plate is fixedly installed on the longitudinal beam, and the upper base is fixedly connected to the connecting plate by bolts; a base plate is fixedly installed on the axle, and the lower base is fixedly connected to the base plate by bolts.

[0010] As a preferred technical solution, the elastic damping device is a damping spring fitted on the guide post below the guide sleeve.

[0011] As a preferred technical solution, the axle is provided with a vertical floating guide device and an elastic damping device at both ends and between the axle and the frame.

[0012] As a preferred technical solution, the axle is a telescopic axle, which includes an outer tube with telescopic inner sleeves slidably fitted at both ends, and the up-and-down floating guide device and the elastic damping device are respectively disposed between the outer tube and the frame.

[0013] The sprayer vibration damping bridge device, employing the aforementioned technical solution, includes a vertically floating guide device positioned between the sprayer's axle and frame. This device comprises a guide sleeve fixedly connected to the frame, a guide post slidingly fitted within the guide sleeve, the lower end of the guide post extending from the guide sleeve and fixedly connected to the axle, and the upper end of the guide post extending from the guide sleeve and fitted with a sliding stop device. An elastic damping device is also provided between the frame and axle. This invention utilizes a vibration damping bridge composed of a guide post and guide sleeve directly connected to the axle and frame, and an elastic damping device. The elastic damping device reduces vertical vibration, while the guide post and guide sleeve guide and constrain the vertical movement of the frame caused by vibration, thus achieving vibration damping for the sprayer. Compared to existing vibration damping systems, this design simplifies the structure, making it suitable for smaller installation spaces between the sprayer's axle and frame. It also reduces frame vibration, thereby reducing the vibration of the working arm and preventing uneven spraying of pesticides due to nozzle instability, ensuring effective spraying. Attached Figure Description

[0014] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0015] Figure 1 This is an installation diagram of this utility model;

[0016] Figure 2 This is a top view of the installation of this utility model;

[0017] Figure 3 This is a side view of the installation of this utility model;

[0018] Figure 4 This is a schematic diagram of an embodiment of the elastic vibration damping device of this utility model;

[0019] Figure 5 This is a side view schematic diagram of an embodiment of the elastic vibration damping device of this utility model;

[0020] Figure 6 This is a cross-sectional schematic diagram of an embodiment of the elastic vibration damping device of this utility model;

[0021] Figure 7 This is a schematic diagram of Embodiment 2 of the elastic vibration damping device of this utility model;

[0022] Figure 8 This is a cross-sectional schematic diagram of Embodiment 2 of the elastic vibration damping device of this utility model.

[0023] In the diagram: 1-Axle; 2-Frame; 3-Longitudinal beam; 4-Guide sleeve; 5-Guide column; 6-Sliding stop device; 7-Reinforcing plate; 8-Lower base; 9-Upper base; 10-Damping spring; 11-Connecting plate; 12-Base plate; 13-Lower cylinder; 14-Upper column; 15-Outer sleeve; 16-Telescopic inner sleeve. Detailed Implementation

[0024] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, in the drawings, the same reference numerals are assigned to components that are substantially the same in structure and function, and redundant descriptions of substantially the same components have been omitted to make the description more concise.

[0025] like Figure 1-3As shown, the vibration damping bridge device for a sprayer includes a vertically floating guide device disposed between the axle 1 and the frame 2 of the sprayer. The vertically floating guide device includes a guide sleeve 4 fixedly connected to the frame 2. A guide post 5 is slidably fitted inside the guide sleeve 4. The lower end of the guide post 5 extends out of the guide sleeve 4 and is fixedly connected to the axle 1. The upper end of the guide post 5 extends out of the guide sleeve 4 and is equipped with a sliding stop device 6. An elastic damping device is also provided between the frame 2 and the axle 1. This vibration damping bridge device uses the mutually cooperating guide sleeve 4, guide post 5, and elastic damping device, resulting in a simple structure with few components, making it easy to install in the small space between the frame 2 and the axle 1. When the sprayer travels on uneven surfaces such as fields, causing bumps and vibrations, these vibrations are transmitted from the axle 1 to the elastic damping device and guide column 5. The elastic damping device significantly buffers and reduces the vibrations, and the guide column 5 slides back and forth within the guide sleeve 4, further weakening and reducing the vibration amplitude. This weakened vibration is then transmitted to the frame 2 by the sliding guide column 5 and guide sleeve 4, weakening and reducing the vibration amplitude of the frame 2. This greatly reduces the vibration of the working arm, preventing uneven spraying of the pesticide due to nozzle instability and ensuring the effectiveness of the spraying operation. Furthermore, a wear-resistant bushing can be installed inside the guide sleeve 4 to improve the wear resistance and service life of the guide sleeve 4 and guide column 5. The sliding stop device 6 can use a nut threaded to the upper end of the guide column 5 to limit the downward sliding of the guide column 5.

[0026] like Figure 1-3 As shown, the guide sleeve 4 is fixedly connected to the longitudinal beam 3 of the frame 2, and the guide sleeve 4 is fixedly connected to the inner and outer sides of the longitudinal beam 3 respectively. The guide sleeve 4 can be fixedly welded to the side of the longitudinal beam 3 through the reinforcing plate 7; guide posts 5 are slidably fitted inside the two guide sleeves 4 respectively. The guide sleeve 4 and guide post 5 structures that are respectively provided on the inner and outer sides of the longitudinal beam 3 ensure the lateral and longitudinal reliability of the connection between the frame 2 and the axle 1, improve the stability of the mutual movement between the frame 2 and the axle 1, and the position of the guide sleeve 4 on the inner and outer sides of the longitudinal beam 3 also avoids the problem of inconvenient installation due to the small space between the frame 2 and the axle 1.

[0027] like Figure 4-8As shown, the elastic damping device includes a lower base 8 that is detachably and fixedly connected to the axle 1 and an upper base 9 that is detachably and fixedly connected to the longitudinal beam 3. The lower ends of the two guide pillars 5 are respectively fixedly connected to the lower base 8. A damping spring 10 is provided between the lower base 8 and the upper base 9, and the damping spring 10 is located between the two guide pillars 5. A connecting plate 11 can be fixedly mounted on the longitudinal beam 3, and the upper base 9 can be detachably fixed to the connecting plate 11 by bolts; a base plate 12 can be fixedly mounted on the axle 1, and the lower base 8 can be detachably fixed to the axle 1 by bolts to the base plate 12. The longitudinal beam 3 and the connecting plate 11, and the axle 1 and the base plate 12 can be fixedly connected by welding, improving the strength and reliability of the connection. The connecting plate 11 can also be welded to the guide sleeve 4, improving the stability and reliability between the guide sleeve 4, the connecting plate 11, and the upper base 9. Furthermore, a lower cylinder 13 with an upper opening can be provided on the base plate 12, and an upper column 14 with its lower end sliding into the opening of the lower cylinder 13 can be provided on the connecting plate 11. The damping spring 10 is fitted around the lower cylinder 13 and the upper column 14, which provides constraint, support, and positioning for the damping spring 10. Figure 4-6 The diagram shows an embodiment of an elastic vibration damping device. Depending on the specific structure and operational requirements of the sprayer, four vibration damping springs 10 are used, arranged symmetrically in pairs around the line connecting the two guide posts 5. Alternatively, two vibration damping springs 10 can be used, located on the line connecting the two guide posts 5. Of course, the number of vibration damping springs 10 can be one, three, or other numbers as needed. Regardless of the number, they should be arranged symmetrically around the line connecting the two guide posts 5 to ensure the coordination of the springs' extension and contraction under stress and their sliding with the guide posts 5. This also ensures that the interaction force between the springs 10 and the guide sleeve 4 is distributed as evenly as possible when the guide posts 5 slide and the springs 10 extend and contract.

[0028] Similarly, Figure 7-8 As shown, the elastic damping device is a damping spring 10 mounted on the guide post 5 and located on the lower side of the guide sleeve 4. The structure is simpler and more suitable for installation in the small space between the axle 1 and the frame 2 of a small-load sprayer.

[0029] like Figure 1-3 As shown, both ends of the axle 1 are respectively equipped with vertical floating guide devices and elastic vibration damping devices between them and the frame 2. In other words, this vibration damping axle device is used between both ends of the axle 1 and the frame 2. This greatly improves the support performance between the axle 1 and the frame 2 and the damping effect on vibration, thus improving the smoothness of the sprayer's operation and the stability of the spraying process. In this invention, the axle is the front axle of the sprayer. Of course, the rear axle of the sprayer can also use this vibration damping device, or both the front and rear axles of the sprayer can use this vibration damping device.

[0030] like Figure 1-3 As shown, if the wheelbase of the sprayer is adjustable, then its axle 1 is a telescopic axle 1. The axle 1 includes an outer tube 15 with a telescopic inner sleeve 16 slidably fitted at both ends. The wheelbase is adjusted by sliding the telescopic inner sleeve 16 on the outer tube 15. The above wheelbase adjustment structure is a known prior art and will not be described in detail here. Because the axle 1 of the adjustable wheelbase sprayer has many components and a complex structure, the space between it and the frame 2 for installing the vibration damping mechanism is relatively small. Therefore, this vibration damping axle device is particularly suitable. The upper and lower floating guide device and the elastic vibration damping device can be set between the outer tube 15 and the frame 2, respectively. That is, the longitudinal beam 3 is fixedly welded to the connecting plate 11, the outer tube 15 is fixedly welded to the base plate 12, the upper base 9 is fixedly connected to the connecting plate 11 by bolts, the lower base 8 is fixedly connected to the base plate 12 by bolts, the lower end of the guide post 5 is fixedly connected to the lower base 8, the guide sleeve 4 is fixedly connected to the side of the longitudinal beam 3 of the frame 2, and the vibration damping spring 10 is arranged between the lower base 8 and the upper base 9.

[0031] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, in the description of this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0032] As described above, embodiments of the present invention have been specifically described, but the present invention is not limited thereto. Those skilled in the art should understand that various modifications, combinations, sub-combinations, or substitutions can be made according to design requirements or other factors, and these are within the scope of the appended claims and their equivalents.

Claims

1. A vibration damping bridge device for a sprayer, characterized in that: The device includes a vertically floating guide device installed between the axle and the frame of the sprayer. The vertically floating guide device includes a guide sleeve fixedly connected to the frame. A guide post is slidably fitted inside the guide sleeve. The lower end of the guide post extends out of the guide sleeve and is fixedly connected to the axle. The upper end of the guide post extends out of the guide sleeve and is equipped with a sliding stop device. An elastic vibration damping device is also provided between the frame and the axle.

2. The vibration damping bridge device for a sprayer as described in claim 1, characterized in that: The guide sleeve is fixedly connected to the longitudinal beam of the vehicle frame, and the inner and outer sides of the longitudinal beam are respectively fixedly connected to the guide sleeve, and the guide post is slidably fitted inside the two guide sleeves respectively.

3. The vibration damping bridge device for a sprayer as described in claim 2, characterized in that: The elastic vibration damping device includes a lower base that is detachably and fixedly connected to the axle and an upper base that is detachably and fixedly connected to the longitudinal beam. The lower ends of the two guide pillars are respectively fixedly connected to the lower base. A vibration damping spring is provided between the lower base and the upper base, and the vibration damping spring is located between the two guide pillars.

4. The vibration damping bridge device for a sprayer as described in claim 3, characterized in that: There are four damping springs, and each damping spring is arranged in pairs, symmetrically with the line connecting the two guide posts as the center line.

5. The vibration damping bridge device for a sprayer as described in claim 3, characterized in that: There are two damping springs, and the two damping springs are located on the line connecting the two guide posts.

6. The vibration damping bridge device for a sprayer as described in claim 3, characterized in that: A connecting plate is fixedly installed on the longitudinal beam, and the upper base is fixedly connected to the connecting plate by bolts; a base plate is fixedly installed on the axle, and the lower base is fixedly connected to the base plate by bolts.

7. The vibration damping bridge device for a sprayer as described in claim 2, characterized in that: The elastic damping device is a damping spring fitted on the guide post below the guide sleeve.

8. The vibration damping bridge device for a sprayer as described in any one of claims 1 to 7, characterized in that: The axle is equipped with vertical floating guide devices and elastic vibration damping devices at both ends and between the axle and the frame.

9. The vibration damping bridge device for a sprayer as described in claim 8, characterized in that: The axle is a telescopic axle, which includes an outer tube with telescopic inner sleeves slidably fitted at both ends. The upper and lower floating guide device and the elastic damping device are respectively arranged between the outer tube and the frame.

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