CN201454818U

CN201454818U - Stepped sorting screen

Info

Publication number: CN201454818U
Application number: CN2009200912755U
Authority: CN
Inventors: 孟芊; 孟凡伟; 解建恒; 李永兴; 周国保; 秦海军; 申帅
Original assignee: HUAXI XINXIANG MACHINERY MANUFACTURING Co Ltd
Current assignee: HUAXI XINXIANG MACHINERY MANUFACTURING Co Ltd
Priority date: 2009-07-03
Filing date: 2009-07-03
Publication date: 2010-05-12
Anticipated expiration: 2019-07-03

Abstract

The utility model relates to a matched device of an agricultural machinery product, in particular to a stepped sorting screen used in match with a harvester. The stepped sorting screen comprises a screen frame rack, a screen plate, a straw walker, and a connecting ear, wherein at least one piece of screen plate is arranged in the screen frame rack, the straw walker is arranged in the screen frame rack, the connecting ear is fixed on the side surface of the screen frame rack, the section of the screen plate is in a step shape, and screen holes or round holes are evenly arranged on the screen plane surface of the stepped screen plate. The device provided by the utility model has simple structure, reliable and safe operation, little possibility of damage, and long service life, solves such puzzles of the common sorting screen as choked grain and high loss rate due to the fact of slow pushing of the grain mishmash and easy cutting, and enhances and amplifies the sorting effect of the grain, thereby improving both the efficiency of the harvester and the harvesting quality.

Description

Step riddle

Technical field:

The utility model relates to a kind of corollary apparatus of agricultural machinery product, the particularly a kind of and matching used step riddle of cropper.

Background technology:

Along with development in agricultural science and technology, peasant's income increases, the rural area requires more and more urgent to mechanization of agriculture, require more and more higher to agricultural machinery, particularly to harvest machinery, require the harvest machinery cutting smoothly, harvesting speed is quick, do not miss farming season, also require the grain impurity of results few, the yield rate height is gathered in the crops effective, the results cost is low etc., but the cropper of existing market is cleaned employed sorting screen, more options circular hole straight-plate-type sorting screen, the establishment sorting screen, blade fish scale sorting screen etc., these sorting screen unreasonable structure, complicated, it is flat that compass screen surface mostly is, and lacks the active force that the grain impurity is pushed away forward, is easy to cause the accumulation of grain impurity to stop up, grain clean weak effect and grain loss rate height.

The utility model content:

In sum, in order to overcome the deficiency of prior art problem, the utility model provides a kind of step riddle, and it has solved common sorting screen, and to push the grain impurity slow, and result in blockage easily, the high difficult problem of grain loss rate makes the effect of cleaning of cropper strengthen increase, has improved the efficient of cropper greatly, and it is simple in structure, safe and reliable, should not damage long service life.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is:

A kind of step riddle, comprise screen frames 1, sieve plate 2, separator ridlle 3 and engaging lug 4, be provided with at least one sieve plate 2 in the screen frames 1, be provided with separator ridlle 3 in the screen frames 1, the side of screen frames 1 is fixed with engaging lug 4, and wherein: the cross sectional shape of described sieve plate 2 is stepped.

Further, evenly distributed sieve aperture or be circular hole on the sieve plane of described sieve plate 2, or be slotted hole.

Further, evenly distributed on the facade of the ladder of described sieve plate 2 have a circular hole.

The beneficial effects of the utility model are:

The utility model is simple in structure, safe and reliable, should not damage, long service life, having solved common sorting screen, to push the grain impurity slow, and result in blockage easily, the high difficult problem of grain loss rate, make the effect of cleaning of grain strengthen and increase, thereby improved the efficient of cropper, improved the results quality.

Description of drawings:

Fig. 1 is an overall structure schematic diagram of the present utility model;

Fig. 2 is that the A of the utility model Fig. 1 is to view;

Fig. 3 is a sieve-plate structure schematic diagram of the present utility model;

Fig. 4 is the vertical view of the utility model Fig. 3;

Fig. 5 is that the B of the utility model Fig. 4 is to view;

Fig. 6 is installed in schematic diagram on the cropper for the utility model.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, be provided with three sieve plates 2 in the present embodiment in the screen frames 1, be provided with separator ridlle 3 in the screen frames 1, the side of screen frames 1 is fixed with engaging lug 4, the cross sectional shape of sieve plate 2 is stepped, the sieve aperture of sieve plate 2 adopts circular hole in the present embodiment, and circular hole is evenly arranged on the facade of sieve plane and ladder.

As shown in Figure 6, the utility model need with the supporting use of cropper, the utility model and the supporting use of corn kernel cropper in the present embodiment, top sieve 5 among the figure, under sieve 6 and be step riddle, top sieve 5 and down sieve 6 be installed on the cleaning room 7 of corn kernel cropper by engaging lug 4, under sieve and also be provided with tail sheet 8 on 6, tail sheet 8 adopts the lip(ped) sieve sheet, sorting screen is the core component that corn kernel is cleaned, during use, the corn kernel cropper advances, corn is delivered to threshing chamber by harvesting, be transported to the cleaning room 7 of cropper through the impurity of corn kernel after the threshing chamber threshing and stalk, step by step deck 2, push the impurity of corn kernel and stalk open attenuation after by forward direction, big broken pellet of corn and bigger straw grass are under separator ridlle 3 effects, outside tail sheet 8 machines of pushing out by cropper, a small amount of do not purify assorted surplus then reclaims threshing once more by the lip(ped) sieve sheet space of tail sheet 8, clean, corn kernel and tiny the impurity then sieve aperture by step deck fall and cooperate blower fan again in the downward process, thin small and light impurity is blown out outside the cropper machine, and the grain of cleaning then enters the silo of cropper.

Claims

1. step riddle, comprise screen frames (1), sieve plate (2), separator ridlle (3) and engaging lug (4), be provided with at least one sieve plate (2) in the screen frames (1), be provided with separator ridlle (3) in the screen frames (1), the side of screen frames (1) is fixed with engaging lug (4), it is characterized in that: the cross sectional shape of described sieve plate (2) is stepped.

2. step riddle according to claim 1 is characterized in that: evenly distributed sieve aperture or be circular hole on the sieve plane of described sieve plate (2), or be slotted hole.

3. step riddle according to claim 1 and 2 is characterized in that: evenly distributed on the facade of the ladder of described sieve plate (2) have a circular hole.