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Double-cone centrifugal cleaning fan

A centrifugal and double-cone technology, which is applied in threshing equipment, applications, agricultural machinery and implements, etc., can solve the problems of uneven cleaning load and uneven distribution of extruded materials, and achieve reduced cleaning losses, simple structure, and easy work. reliable effect

Active Publication Date: 2018-11-13
JINHUA VOCATIONAL TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Practice has shown that although the shaking plate is "uniform", the distribution of the extract on the upper sieve (louver sieve) is still uneven. There are most on both sides of the upper sieve, and there is little in the middle, and the cleaning load is uneven.

Method used

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Embodiment Construction

[0024] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0025] like figure 1 , figure 2 , image 3 Shown, a kind of double-cone type centrifugal cleaning fan comprises: fan housing 100, fan shaft 200 and fan blade 300, this double-cone type centrifugal type cleaning fan is applied to the semi-feeding rice-wheat combine harvester In the cleaning device, it is designed for the actual load on the vibrating screen surface.

[0026] Preferably, the fan casing 100 is exactly a casing structure, which is used to be arranged under the upper screen 700 (louver screen), and is used to blow the airflow to the upper screen 700; and the fan casing 100 includes two left and right axial air inlets , also includes a radial air outlet.

[0027] The fan shaft 200 is arranged in the fan hous...

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Abstract

The invention provides a double-cone centrifugal cleaning fan. The double-cone centrifugal cleaning fan comprises a fan housing, a fan shaft arranged in the fan housing, and fan blades connected to the fan shaft; each fan blade has a V-shaped outer side edge with the two ends wide and the middle narrow, and when the fan shaft rotates, the tracks formed by the outer side edges of the fan blades aredouble cones. The double-cone centrifugal cleaning fan has the advantages of being simple in structure, reliable in work and capable of uniformly distributing load on the surface of a vibrating screen, improving the cleaning quality and reasonably utilizing the airflow to reduce the cleaning loss.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, semi-feeding rice and wheat combine harvesters, and grain cleaning devices, and relates to a double-cone centrifugal cleaning fan. Background technique [0002] The cleaning device of the half-feeding rice and wheat combine harvester is composed of a cleaning screen box and a centrifugal fan, which is used to clean the extrudates separated from the threshing device, including grains, chaff and short stems; Under the combined action of the vibration of the sieve and the air flow of the centrifugal fan, light and small impurities are blown out of the machine, and the grains are collected and sent to the grain tank. The impurity content of rice and wheat grains is required to meet the performance requirements and the cleaning loss is controlled within a certain range. [0003] The threshing drum of the semi-feeding combine harvester is arranged longitudinally (the drum shaft is in lin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01F12/44
CPCA01F12/446
Inventor 陈霓刘正怀戴素江张正中王志明田立权陈德俊
Owner JINHUA VOCATIONAL TECH COLLEGE
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