Balance control device for spray boom arms of high-ground-clearance boom sprayer

A boom spraying and balance control technology, which is applied to the device for catching or killing insects, application, animal husbandry, etc. It can solve the problems of long-term violent shaking of the end of the boom arm and affect the effect of spraying, and realizes automatic operation. , eliminate the influence, improve the effect of operation accuracy

Pending Publication Date: 2020-05-19
CHANGZHOU INST OF MECHATRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem in the prior art that the end of the spray boom arm tends to vibrate greatly or for a long time due to the influence of vehicle body swing or terrai

Method used

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  • Balance control device for spray boom arms of high-ground-clearance boom sprayer
  • Balance control device for spray boom arms of high-ground-clearance boom sprayer
  • Balance control device for spray boom arms of high-ground-clearance boom sprayer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1, such as Figure 1-Figure 5 As shown, a high ground clearance boom sprayer boom arm balance control device includes a bracket 3, a support shaft 4 mounted on the bracket 3, a drive motor 5 for driving the support shaft 4 to rotate, and a cable mounted on the support shaft 4 Recovery wheel 7 and coil spring assembly 8, and the circumferential limiter 9 that is fixed on the support 3, the circumferential limiter 9 can limit the circumferential direction of one end of coil spring assembly 8, so that coil spring assembly 8 can be rotated to tighten.

[0037]A cable 6 is wound on the cable recovery wheel 7, one end of the cable 6 is fixed to the cable recovery wheel 7, and the other end of the cable 6 is fixed to the end of the spray boom arm 1; when the end of the spray boom arm 1 moves downward, the cable 6 is pulled out , the coil spring assembly 8 is gradually tightened, when the end of the boom arm 1 moves upward, the drive motor 5 drives the support shaft 4 ...

Embodiment 2

[0042] Embodiment 2. In Embodiment 1, when the end of the spray boom arm 1 moves downward, the coil spring assembly 8 is tightened. Since the axial relative position of the coil spring assembly 8 and the cross bar remains unchanged, when the spray boom When the end of the arm 1 moves upward, the coil spring assembly 8 reverses along with the support shaft 4, and when the raised stopper 10 is stuck on the cross bar again, the large diameter end of the outer edge of the coil spring assembly 8 will be gradually enlarged Even disconnected, this will greatly shorten the service life of the coil spring assembly 8, and the reverse extension of the coil spring assembly will hinder the drive motor to drive the cable recovery wheel to recover the cable, affecting the tightening of the spray boom arm when it vibrates downward again Force, so this embodiment is improved as follows: on the basis of embodiment 1, as Figure 6-Figure 9 As shown, the device also includes a baffle 11, a telesc...

Embodiment 3

[0046] Embodiment 3, on the basis of embodiment 2, as Figure 5-Figure 7 As shown, the cross bar is provided with a groove 14, the groove 14 is suitable for the passage of the raised block 10, that is, the groove 14 can increase the surface distance between the cross bar and the coil spring assembly 8, so that the raised block 10 Can pass through the groove 14, when the end of the boom arm 1 moves upwards, the axial distance between the coil spring assembly 8 and the groove 14 and the electromagnet 13 is the same, that is, the outer large-diameter end of the coil spring assembly 8 can follow the The support shaft 4 rotates. The opening of the groove 14 faces the coil spring assembly 8, and the groove 14 runs through front and back, that is, it penetrates in the direction of rotation of the coil spring assembly 8, so that the coil spring assembly 8 can pass through when it moves to the axial position of the groove 14. Rotate circumferentially through the groove 14, and the sur...

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Abstract

The invention discloses a balance control device for spray boom arms of a high-ground-clearance boom sprayer. The balance control device comprises: supports; supporting shafts, which are respectivelyarranged on the supports; a driving motor, which is used for driving the supporting shafts to rotate; cable recycling wheels and coil spring assemblies, which are respectively arranged on the supporting shafts; and circumferential limiting pieces, which are fixedly arranged on the supports and can circumferentially limit one ends of the coil spring assemblies, so the coil spring assemblies can berotated and tightened. According to the invention, cables are wound on the cable recycling wheels, and when the tail ends of the spray boom arms move downwards, the cables are pulled out, and the coilspring assemblies are gradually tightened to generate a force for preventing the spray boom arms from moving downwards; and when the tail ends of the spray boom arms move upwards, the driving motor drives the supporting shafts to rotate, and the cables are wound around the cable recycling wheels again. The balance control device provided by the invention can reduce the vibration frequency and vibration time of the spray boom arms, so the spray boom arms can be restored to a balance position as soon as possible; and the influence of vibration of a vehicle body on a pesticide application effectis reduced.

Description

technical field [0001] The invention relates to the field of plant protection machinery in agricultural machinery, in particular to a balance control device for a spray boom arm of a high ground clearance spray boom sprayer. Background technique [0002] As a mainstream plant protection equipment, the high clearance boom sprayer has the advantages of high efficiency, quickness and adaptability to different fields. The current mainstream high-ground-clearance boom sprayers mostly adopt straight-rod arm structure and four-link passive suspension. As the main working part of the high ground clearance boom sprayer, the boom arm has the characteristics of long arm span and great flexibility. [0003] When the high ground clearance boom sprayer is working, the boom arm is in a balanced position. Due to the large flexibility of the boom arm, the stability of the boom arm is poor. Vibration in the vertical direction, even a small vibration amplitude may cause the end of the boom a...

Claims

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Application Information

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IPC IPC(8): A01M7/00
CPCA01M7/005A01M7/0089
Inventor 闫军朝王胜山吴海东李洪昌周同根
Owner CHANGZHOU INST OF MECHATRONIC TECH
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