CN2153210Y

CN2153210Y - Rice thresher with swinging sieve

Info

Publication number: CN2153210Y
Application number: CN 93204222
Authority: CN
Inventors: 丁元贺; 孙英贵; 高显义; 王安信; 陈恒高; 冯世江; 衣素娟; 徐强
Original assignee: Heilongjiang Bayi Agricultural University
Current assignee: Heilongjiang Bayi Agricultural University
Priority date: 1993-02-20
Filing date: 1993-02-20
Publication date: 1994-01-19
Anticipated expiration: 2003-02-20

Abstract

The utility model relates to a rice thresher with a swinging sieve. The rice thresher with a swinging sieve is a complete feeding type spike-tooth roller thresher, comprising a machine frame, a threshing roller, a cleaning device, and a driving device. A cleaning sieve 3 of the cleaning device of the rice thresher with a swinging sieve adopts a spatial machine driven by an eccentric swinging machine. The cleaning sieve is a two-layer combine sieve. A fan adopts a double-suction centrifugal draught fan. Blades of the fan are bidirectional curved surfaces. The rice thresher with a swinging sieve has high thoroughness of threshing and little total loss.

Description

Rice thresher with swinging sieve

A kind of paddy-eliminator with rocking bar sieve is the threshing machine that is used for threshing ground or field fixed point shelling paddy rice, and its adopts full feeding shelling, can with tractor with small four wheels or walking tractor matching, international Patent classificating number is: A01F5/00.

In recent years, paddy rice is planted in northern China and also develops rapidly, because of paddy rice is the ripe crop of stalk that belong to live, the fresh and alive mature period of stem stalk or dried-up after machinery directly results all can cause great yield loss.So, the results of paddy rice are mostly adopted cut-tie-shine-harvest technology of Tuo, resolving the threshing problem in this technology is to have gathered in the crops the important technical links of paddy rice.At present, general thresher causes the threshing loss big because the sorting screen reliable transmission is poor, and blower fan is cleaned problems such as weak effect, and clean rate is low, makes secondary clean treating capacity and strengthens.

This paddy-eliminator that the utility model provides is the threebing machinery body technique problem at reality general, and when improving threshing performance, emphasis solves the transmission of sorting screen and the selection by winnowing ability of blower fan, improves the clean rate index of threshing.

The technical characterictic of this paddy-eliminator is that it is made up of frame, full feed type threshing cylinder, dressing mechanism and transmission mechanism.Cylinder is a spiketooth type, and spike-tooth is that many row's multi-head spirals are arranged, and the sorting screen 3 of dressing mechanism adopts the eccentric wobble crank mechanism transmission, and this mechanism drives rocking bar 9 and universal reel cage 10 by eccentric wheel 8.Universal reel cage is provided with universal hinge 11 and following universal hinge 12, and following universal hinge drives bull stick 13 rotates rotating shaft 14, and rotating shaft drives swing arm 15 and drives sorting screen 3, and sorting screen is a bilayer combination sieve; The blower fan 7 of dressing mechanism is the double-suction type centrifugal induced draught fan, and its blade 2 is two-way warpage face, and promptly blade radially is the warpage face, and the warpage limit is made on the both lateral sides limit.The shared axis of blower fan and threshing cylinder, promptly drum shaft 6.

Advantage of the present utility model:

1. adopt eccentric rocking bar transmission mechanism to drive sorting screen, transmission conversion in this space makes the swing that has directly become sorting screen from the rotary power of cylinder shaft, and transmission loss is little, makes good use of, and reliable transmission has improved screening effect effectively;

2. blade is that two-way warpage face double-suction type centrifugal blower is to clean by the air inducing effect, and its blast and vacuum action are stable, do not influence the selection by winnowing performance at rotating speed 650-800 rev/min operation interval, and the cereal loss does not take place in the selection by winnowing;

3. this thresher volume is little, and is in light weight, the productivity ratio height of unit power, and total losses and after-treatment amount are few, clean rate height, threshing performance height.

Description of drawings:

Fig. 1 thresher overall construction drawing

Fig. 2 eccentric wobble crank mechanism figure

Fig. 3 fan blade front view

Fig. 4 fan blade mansion view

Fig. 5 fan blade B-B view

1. 12. times universal hinge 13. bull sticks 14. rotating shafts 15. swing arms of universal hinge on the cylinder 2. blades 3. sorting screens 4. frames 5. belt pulleys 6. drum shafts 7. blower fans 8. eccentric wheels 9. rocking bars 10. universal reel cages 11.

The technical application scheme:

With threshing 800-900 kilogram paddy rice per hour is example, 12 horsepowers of tractor with small four wheels of mating power, and it is as follows to narrate embodiment in conjunction with the accompanying drawings:

Diameter of cylinder: φ 470

Drum length: 950 millimeters

Spike-tooth number: 51 teeth

Spike-tooth is arranged: 6 rows, 3 helical arrangement

Drum rotation speed: 700-800 rev/min

Blower fan external diameter: φ 500

Blower fan width: 200 millimeters

Blast: 22.5 MPas

Air quantity: 2460 meters ³/ minute

Last sieve aperture: wire gauze sieve 6 * 6(millimeter)

Following sieve aperture: wire gauze sieve 3.5 * 3.5(millimeter)

Frame 4 is a shaped steel assembly welding bracing frame, cylinder mechanism, and dressing mechanism and transmission mechanism are mounted thereto.Drum shaft 6 is the public axle of cylinder 1 and blower fan 7, and left end has external powered pulley, and right-hand member has driving pulley 5.The right radial of drum shell has feeding mouth, and rice bar axial flow moves to left end and radially exports discharge through the place ahead.The blade 2 of blower fan 7 has 6, and each 1/3 place, blade outer end turns up the angle about 30 degree, and side is turned up about 45 degree.

Belt 5 is the power of transmission mechanism, connect eccentric wheel 8 by belt, drive rocking bar 9 and universal reel cage 10, go up universal hinge 11 and following universal hinge 12 because of having, can pass through bull stick 13, rotating shaft 14 and the 3 implementation space transmissions of 15 pairs of sorting screens of swing arm, sorting screen 3 is double-deck combination sieve, and upper sieve is assorted clearly greatly, lower screen is clear little assorted.Blower fan 7 air ports are positioned at sorting screen tail end top, clean paddy by air inducing, and frame 4 can be established 4 road wheels (not drawing among the figure) and is convenient to shift.

Universal reel cage 10 is key components of whole eccentric wobble crank mechanism implementation space transmission, goes up universal hinge 11 and is ball pivot with following universal hinge 12, can guarantee the steady and reliable of transmission.

Claims

1, a kind of paddy-eliminator with the rocking bar sieve; it comprises frame, threshing cylinder, dressing mechanism and transmission mechanism; the sorting screen 3 that it is characterized in that dressing mechanism adopts the eccentric wobble crank mechanism transmission; this mechanism drives rocking bar 9 and universal reel cage 10 by eccentric wheel 8; universal reel cage is established universal hinge 11 and following universal hinge 12; universal hinge band bull stick 13 rotates rotating shaft 14 down; rotating shaft drives swing arm 15 and drives sorting screen 3; the blade 2 of the blower fan 7 of dressing mechanism is the double-suction centrifugal pump air-introduced machine of two-way warpage face; blade radial is the warpage face, and the warpage limit is made on the both lateral sides limit.