CN102017847A

CN102017847A - Air suction and air blow-combined separation type grain cleaning device for reaping machine

Info

Publication number: CN102017847A
Application number: CN2009100443850A
Authority: CN
Inventors: 李源湘; 胡华锋
Original assignee: HUNAN SHUANGFENG XIANGYUAN HUANGSHI ELECTRONICS CO Ltd
Current assignee: HUNAN SHUANGFENG XIANGYUAN HUANGSHI ELECTRONICS CO Ltd
Priority date: 2009-09-21
Filing date: 2009-09-21
Publication date: 2011-04-20

Abstract

The invention relates to an air suction and air blow-combined separation type grain cleaning device for a reaping machine. The device comprises a sieve which is arranged on a machine frame and is driven by a driving mechanism to swing back and forth, wherein the sieve consists of a single-layered sieve body and a grain warehouse attached to the sieve; the single-layered sieve body comprises a sieve bottom board and a square frame baffle; the front section of the square frame baffle is provided with the sieve bottom board, and the rear section of the square frame baffle is provided with a warehouse inlet; a draft fan and an air collection hood are arranged above the sieve; and one end of the sieve is provided with an air blower. The device can separate grains and weeds efficiently, the separated grains contain a small number of impurities, and the device has the advantages of simple structure, small volume, low power consumption and the like.

Description

A kind of exhausting air blast of grain header is in conjunction with the separate type cleaning mechanism

Technical field

The present invention relates to agricultural machinery, the exhausting air blast that further is meant a kind of grain header is in conjunction with the separate type cleaning mechanism.

Background technology

The cleaning mechanism that on the combine weeds and grain is separated all mostly is selection by winnowing and sieve combining structure at present, selection by winnowing adopts the air blast mode usually, used sieve has wire gauze sieve or flake sieve, stamped sieve, lip(ped) sieve, fan blower is installed in an end of sieve, the air-flow that produces flows through whole compass screen surface from the inside to surface, separate the employing exhausting mode selection by winnowing that has, but the poor effect of these two kinds of selection by winnowing cleaning mechanisms in the process of weeds thing and the outside motion of grain, percentage of impurity is higher, in order thoroughly to separate grain and careless assorted, adopt the multilayer sieve usually, secondary is installed cleans structure, its mechanism's complexity, power consumption is big, and is bulky, 1/3 of the complete machine that accounts for.

The utility model content

The technical problem to be solved in the present invention is, at the defective that present technology exists, the exhausting air blast convolution cleaning mechanism of design grain header, it can efficiently separate with weeds grain, it is assorted few that grain after the separation contains, and simple in structure, advantage such as volume is little, power consumption is few.

Technical scheme of the present invention is, the exhausting air blast convolution cleaning mechanism of described grain header comprises the sieve that is installed on the frame and can be made reciprocally swinging by the driving mechanism drive, and its design feature is, air exhauster and wind-collecting cover are equipped with in the top of sieve, and an end of sieve is equipped with fan blower.

Below the present invention made further specify.

Referring to Fig. 1 to Fig. 4, the exhausting air blast of grain header of the present invention is in conjunction with the separate type cleaning mechanism, comprise the sieve 1 that is installed on the frame 11 and can makes reciprocally swinging by the driving mechanism drive, its design feature is, air exhauster 10 and wind-collecting cover 14 are equipped with in the top of sieve 1, and an end of sieve 1 is equipped with fan blower 13.

Design principle of the present invention is, because sieve 1 tilting installation, cereal in the threshing bin mouthfuls 5 drops on the bottom screening plate 4 of individual layer sieve nest 2 via winnowing, and along with the reciprocal shake of sieve 1, foodstuff grain particle and careless foreign material (cereal) are in the lump to the back segment direction play of individual layer sieve nest 2; In the play process because of the grain quality greater than weeds, grain (as grain) can sink to the bottom screening plate face, above weeds float on; Grain along the sieve bottom surface scurry to the warehouse entry mouth 8 of individual layer sieve nest 2 fall into the sieve silo 3, from the sieve silo 3 the mouth of a valley 9 that goes out drop into the grain pocket; Will float over above the grain layer and grass is assorted, fan blower 13 air-flows that are installed in individual layer sieve nest 2 front ends blow the assorted back segment to individual layer sieve nest 2 of grass, when blowing to wind-collecting cover 14 positions, the air exhauster 10 that is installed in sieve 1 top upwards siphons away, and separates with grain back of the body road.

As known from the above, the present invention be a kind of exhausting air blast of grain header in conjunction with the separate type cleaning mechanism, it can efficiently separate with weeds grain, the grain after the separation contains assorted few, and simple in structure, advantage such as volume is little, power consumption is few.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the present invention;

Fig. 2 is the plan structure schematic diagram of Fig. 1;

Fig. 3 is that device shown in Figure 1 is installed in the structural representation on the grain header frame;

Fig. 4 is the backsight structural representation of Fig. 3.

In the drawings:

The 1-sieve, 2-individual layer sieve nest, 3-with the sieve silo,

4-bottom screening plate, the 5-mouth of winnowing, 6-square frame baffle plate,

The 7-eccentric chain-wheel, 8-warehouse entry mouth, 9-goes out the mouth of a valley,

The 10-air exhauster, 11-frame, 12-connecting rod

13-fan blower 14-wind-collecting cover 15-swings handle

Embodiment

Referring to Fig. 1 and Fig. 2, the exhausting air blast of described a kind of grain header is in conjunction with the separate type cleaning mechanism, comprise the sieve 1 that is installed on the frame and can makes reciprocally swinging by the driving mechanism drive, described sieve 1 is formed by individual layer sieve nest 2 with sieve silo 3, individual layer sieve nest 2 comprises bottom screening plate 4 and square frame baffle plate 6, square frame baffle plate 6 leading portions are equipped with bottom screening plate 4, back segment is a warehouse entry mouth 8, as shown in Figure 3 and Figure 4, sieve 1 is suspended on the frame 11, one end of connecting rod 12 is hinged on the eccentric chain-wheel 7, the other end is hinged 15 with the swing of sieve 1 one sides, when eccentric chain-wheel 7 rotates, just drives sieve 1 and makes reciprocally swinging (shake), air exhauster 10 and wind-collecting cover 14 are equipped with in the top of sieve 1, and an end of sieve 1 is equipped with fan blower 13.

Claims

1. the exhausting air blast of a grain header is in conjunction with the separate type cleaning mechanism, comprise the sieve 1 that is installed on the frame and can makes reciprocally swinging by the driving mechanism drive, it is characterized in that air exhauster 10 and wind-collecting cover 14 are equipped with in the top of sieve 1, an end of sieve 1 is equipped with fan blower 13.