Unlock instant, AI-driven research and patent intelligence for your innovation.

Windmill screen of threshing machine

A thresher and air drum technology, which is applied in threshing equipment, agricultural machinery and tools, applications, etc., can solve the problems of strong suction force of air drum, change of gas flow state, insufficient air intake of air drum, etc., to reduce accumulation Possibility, the effect of reducing the damage rate

Inactive Publication Date: 2015-03-25
CHONGQING JINGANG MACHINERY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technology has the following technical defects: when the air intake volume of the air drum is insufficient, the suction force of the air drum will be too strong, the gas flow state will change, the air volume entering the air drum will be unbalanced, and the air inlet of the air drum will produce Turbulent flow, causing surge at the same time, turbulent flow will increase the breakage rate in the process of grain pumping and affect the operation effect
In the prior art, the outside of the air drum of the threshing machine is closed and fixedly connected between the receiving barrel and the discharge pipe, which may easily lead to insufficient air intake in the air drum and the above-mentioned adverse consequences.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Windmill screen of threshing machine
  • Windmill screen of threshing machine
  • Windmill screen of threshing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like figure 1 As shown, the second embodiment provided by the present invention is to set an air inlet 3 on the outer surface of the air drum, and the air inlet 3 is a concentric circle of the air drum 5 and the central axis hole 4, and its radius is greater than twice the central axis. hole.

[0025] like figure 1 As shown, the outer surface of the wind drum is provided with a central shaft hole 4, and the central shaft hole 4 is used to install the rotating shaft 8 (see figure 2 ), realize the rotational connection between the rotating shaft 8 and the outer surface of the wind drum 5, and the rotating shaft 8 is provided with a group of fans distributed axially according to the wind drum. like figure 2 As shown, the inner wall of the wind drum is provided with a group of annular fin ribs and screen 7 distributed in the axial direction of the wind drum, and the screen 7 is fixed on the inner wall of the wind drum 5, and the rotating shaft passes through the screen...

Embodiment 2

[0028] like figure 1 , Figure 4 As shown, the first embodiment of the wind drum of the threshing machine of the present invention has a structure that three blade-type air inlets 3 are arranged on the outer surface 2 of the wind drum, and the air inlets are uniformly distributed circumferentially on the wind drum, which is The wind drum 5 provides the secondary air intake. When the thresher is working, the air inlet on the wind drum connects the inner space of the wind drum with the outer air space, so that the fan has enough air source when it is working, thereby generating enough wind to push the grains It is thrown out from the discharge pipe 1 to reduce the possibility of grains accumulating in the wind drum.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an agricultural machine, and particularly relates to a windmill screen of a threshing machine. A sector-shaped or annular air inlet is formed in the outer side face of the windmill screen. A set of annular wing ribs distributed in the axial direction of the windmill screen are arranged on the inner wall of the windmill screen, and the annular wing ribs are curved fins evenly distributed on one cross section of the windmill screen in the circumferential direction. A set of blocking nets distributed in the axial direction of the windmill screen are installed in the windmill screen and fixed to the inner wall of the windmill screen. The windmill screen of the threshing machine overcomes the defect that the air inlet rate is small in the prior art, the air inlet rate of the threshing machine can be increased, and the damage rate of grains can be decreased.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to an air drum for a threshing machine. Background technique [0002] Thresher is a kind of agricultural harvesting machine, which can separate crop grains from stems, and is mainly used for harvesting food crops. The emergence of threshers has greatly reduced the labor intensity of crop harvesting and has also improved agricultural productivity. [0003] Now take the Fengshou-l100 compound thresher as an example to illustrate the basic structure of the thresher. This thresher is used for threshing, separation and cleaning operations, mainly for wheat, and also for rice, sorghum, soybeans and other crops. The machine is mainly composed of a feeding device, a threshing device, a separating device, a cleaning device, a conveying device, a residual processing device, a walking device and a frame; The threshing device adopts double drum type. The first roller is a spike type, an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A01F12/48
Inventor 张长贵
Owner CHONGQING JINGANG MACHINERY