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Obstacle avoidance type rotary blade overload protection device

A technology of overload protection and rotary tiller, which is applied in the field of agricultural machinery, can solve the problems of time-consuming, costly and laborious replacement, and achieve the effect of simple structure and easy processing and manufacturing

Active Publication Date: 2015-12-30
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an overload avoidance type rotary tiller that solves the problems that the rotary tiller of the existing horizontal rotary tiller described in the technical background is easily broken when it is overloaded, and the replacement is time-consuming, laborious, and expensive. protective device

Method used

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  • Obstacle avoidance type rotary blade overload protection device
  • Obstacle avoidance type rotary blade overload protection device
  • Obstacle avoidance type rotary blade overload protection device

Examples

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Embodiment Construction

[0038] The present invention is further described below in conjunction with embodiment.

[0039] Such as figure 1 As shown, the obstacle-avoiding rotary cultivator overload protection device includes a rotary cultivator shaft 1 and an overload protection unit 2, and multiple sets of overload protection units 2 are fixed on the outer surface of the rotary cultivator shaft 1 at equal intervals in the axial direction. Specifically, there are 4 to 14 groups of the overload protection units 2 .

[0040] Such as Figure 2-Figure 5 As shown, the overload protection unit 2 includes a left disc knife seat 309 , a right disc knife seat 301 and 2 to 4 sets of rotary blade protection units 3 .

[0041] Wherein, the left disc knife seat 309 and the right disc knife seat 301 are connected to each other through the second bolt 308, and are fixed on the rotary blade shaft 1 coaxially and symmetrically. Two to four groups of rotary tiller protection units 3 are equiangularly distributed on ...

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Abstract

The invention belongs to the technical field of agricultural machinery and particularly relates to an obstacle avoidance type rotary blade overload protection device. The device comprises a rotary blade shaft (1) and overload protection units (2), wherein multiple groups of overload protection units (2) are axially and fixedly connected onto the outer surface of the rotary blade shaft (1) at equal intervals; each overload protection unit (2) comprises a left disc tool apron (309), a right disc tool apron (301) and multiple groups of rotary blade protection units (3); each rotary blade protection unit (3) comprises a rotary blade (304), a first bolt (307), a left extension spring (307) and a right extension spring (302). The obstacle avoidance type rotary blade overload protection device is simple in structure and easy to process and manufacture, and the normal work is not influenced while the rotary blades are protected.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, in particular to an overload protection device for an obstacle-avoiding rotary tiller. Background technique [0002] The rotary tiller is a cultivating machine that completes the plowing and harrowing of the field soil at one time. It has the advantages of fully crushing the soil, leveling the surface after plowing, reducing the number of times that agricultural machinery enters the ground, and can give full play to the power of the tractor. Common horizontal rotary tillers generally have a rotary tillage depth of 10cm to 15cm, and the rotational speed of the rotary blade shaft is about 300r / min. The problem is: the rotary tiller and the shaft of the rotary tiller rotate at a high speed. When the blade hits a stone or a brick, the rotary tiller will be broken by a large impact force. In severe cases, the knife seat will be deformed or broken. Seriously It affects the operation qua...

Claims

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Application Information

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IPC IPC(8): A01B61/00A01B33/08
Inventor 何进郑侃李洪文王庆杰郑智旗张祥彩陈婉芝王宪良刘俊安孙思佳
Owner CHINA AGRI UNIV
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