Self-excited vibration generation device and method for soil rotary tillage blade and soil rotary tillage knife roller

A self-excited vibration and generating device technology, applied in the field of agricultural soil cultivation, can solve the problems of lack of research and development, less resistance involved, etc., to achieve the effect of enhancing self-excited vibration and reducing cutting resistance

Active Publication Date: 2017-08-08
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, less is involved in reducing the resistance of the soil rotary tillage process, and the research and development of vibration drag-reducin...

Method used

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  • Self-excited vibration generation device and method for soil rotary tillage blade and soil rotary tillage knife roller
  • Self-excited vibration generation device and method for soil rotary tillage blade and soil rotary tillage knife roller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A self-excited vibration generating device for soil rotary tillage blades, including a rotating shaft, a bearing seat, a torsion beam, and a stretching bar; one end of the rotating shaft fixes the blade, the other end of the rotating shaft extends into the bearing seat, and the torsion beam is fixedly installed on the One end of the bearing seat, one end of the tension bar is installed on one end of the torsion beam, and the other end of the tension bar is installed on the bearing seat; the blade drives the rotating shaft to rotate in the bearing seat, and resets under the action of the stretch bar. .

[0031] In this embodiment, it also includes a torsion beam, a stretch bar, a mounting column, and a rotation limit bolt; Install the mounting column on the bearing seat at both ends of the torsion beam respectively, install the rotation limit bolts on the bearing seat at the two ends of the other side of the torsion beam respectively; open mounting holes corresponding to...

Embodiment 2

[0037] A self-excited vibration generating device for soil rotary tillage blades, including a rotating shaft, a bearing seat, a torsion beam, and a stretching bar; one end of the rotating shaft fixes the blade, the other end of the rotating shaft extends into the bearing seat, and the torsion beam is fixedly installed on the One end of the bearing seat, one end of the tension bar is installed on one end of the torsion beam, and the other end of the tension bar is installed on the bearing seat; the blade drives the rotating shaft to rotate in the bearing seat, and resets under the action of the stretch bar.

[0038] In this embodiment, a mounting column and a rotation limit bolt for limiting the rotation angle of the torsion beam are also included, mounting holes are provided at both ends of the torsion beam, and the mounting columns are respectively installed on the bearing housing at both ends of one side of the torsion beam. One end of the tension spring is installed on the ins...

Embodiment 3

[0051] A soil rotary tiller knife roller, comprising a knife roller shaft, a blade, and the self-excited vibration generator for the soil rotary tiller blade described in Embodiment 2, wherein the knife roller shaft, the soil rotary tiller blade self-excited vibration generator, and the blade are installed in sequence.

[0052] In this embodiment, the self-excited vibration generator of the soil rotary tillage blade is installed on the cutter roller shaft through the cutter roller shaft mounting seat, and the blade is installed on the rotation shaft of the self-excited vibration generator of the soil rotary tiller blade. The assembled soil rotary tiller roller can generate self-excited vibration when rotary tilling the soil, so as to achieve the effects of vibration crushing and vibration resistance reduction.

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PUM

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Abstract

The invention discloses a self-excited vibration generation device for a soil rotary tillage blade. The self-excited vibration generation device comprises a rotating shaft, a bearing seat, a torsion beam and a stretching strip, wherein one end of the rotating shaft extends into the bearing seat, the torsion beam is fixedly mounted at one end, extending into the bearing seat, of the rotating shaft, one end of the stretching strip is mounted at one end of the torsion beam, and the other end of the stretching strip is mounted on the bearing seat; the rotating shaft can automatically rotate in the bearing seat. The invention provides a self-excited vibration generation method for the soil rotary tillage blade. According to the method, DOF (degree of freedom) of the blade rotating relative to a central axis of the rotating shaft is released, rigidity in the DOF direction is provided, and under the condition that the blade is stressed non-uniformly in a working process, self-excited vibration of the blade is realized. According to the invention, self-excited vibration of the blade in three DOF directions including rotation around the central axis of the rotating shaft, movement in the axial direction of the rotating shaft and rotation in a hinge pin direction can be produced in the working process, self-excited vibration frequency can be adjusted by adjusting the rigidity in the corresponding DOF direction so as to adapt to different soil, and tillage resistance is small. The invention belongs to the technical field of agricultural soil cultivation.

Description

technical field [0001] The invention belongs to the technical field of agricultural soil cultivation, and in particular relates to a self-excited vibration generating device for soil rotary tillage blades, a soil rotary tiller roller using a self-excited vibration generator for soil rotary tillage blades, and a self-excited vibration generator for soil rotary tillage blades method. Background technique [0002] In the field of agricultural engineering, soil cultivation consumes a large proportion of energy in agricultural production. Therefore, the energy saving and drag reduction of soil tillage has become a research hotspot of scholars at home and abroad. Relevant studies have shown that the vibration of tillage implements with appropriate vibration frequency and amplitude can reduce the resistance of soil tillage and improve the quality of soil tillage. Soil tillage includes methods such as plowing, rotary tillage, subsoiling, low-tillage and no-tillage. At present, do...

Claims

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Application Information

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IPC IPC(8): A01B33/14
CPCA01B33/14
Inventor 杨洲张倩倩孙健峰熊平原孙志全陈华明
Owner SOUTH CHINA AGRI UNIV
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