CN202005153U - Threshing and separating device used for rice harvester - Google Patents

Abstract

The utility model relates to a threshing and separating device used for a rice harvester. The threshing and separating device comprises a frame, rollers supported on the frame and a separating mechanism positioned below the roller, wherein the rollers include a tangential flow roller and an axial flow roller positioned behind the tangential flow roller and in parallel to the tangential flow roller, a tangential flow roller concave grid is arranged below the tangential flow roller, an axial flow roller concave grid is arranged below the axial flow roller, and a chopper is fixedly connected to the weed discharge port of the axial flow roller. The rice is primarily threshed by the tangential flow roller and secondarily threshed by the axial flow roller, so as to achieve better threshing effects and reduce the harvest loss rate of rice. After the threshing operation is completed, the rice straws are chopped and returned to farmlands, which is environment-friendly and does not destroy the organic components of soil.

Description

A kind of rice harvester installed threshing separator

Technical field

The utility model relates to a kind of rice harvester, relate in particular to a kind of rice harvester installed threshing separator.

Background technology

China paddy rice plantation area is wide, and the output height is wide in variety, and after per season, paddy rice harvesting finished, a large amount of stalks after airing, were set fire and burnt down on the farm, not only cause environmental pollution, and destroy the organic component of soil.Existing corn mowing machine, when the big paddy rice of harvesting output height, threshing difficulty, the field loss rate is higher, and can not realize also field of stalks cutting.Existing in prior technology weak point that Here it is.

Summary of the invention

The purpose of this utility model is exactly at the existing in prior technology deficiency, and provides a kind of field loss rate low, and can realize the rice harvester installed threshing separator of returning crop stocks to the field.

This programme is realized by following technical measures: this rice harvester comprises frame, is supported on the cylinder on the frame and is positioned at the separating mechanism of cylinder below with installed threshing separator, described cylinder comprises cut flow roller and is positioned at its rear and axial-flow type drum in parallel, the below of cut flow roller is provided with the cut flow roller concave grate, the below of axial-flow type drum is provided with the axial-flow type drum concave grate, and the straw outlet end of axial-flow type drum is fixedly connected with chopper.

Above-mentioned chopper comprises the chopping cylinder of fixedlying connected with axial-flow type drum and is fixed on stationary knife on the frame, drives straw by chopping cylinder and rotates, straw is stirred evenly, by stationary knife with the straw mincing and returning to the field.

Above-mentioned chopping cylinder is provided with the moving knife that cooperates with stationary knife, by cooperating of stationary knife and moving knife, can better realize the purpose of straw mincing and returning to the field.

Above-mentioned cut flow roller drives axial-flow type drum by transmission mechanism, so that both rotate synchronously.

Above-mentioned transmission mechanism adopts chain-drive mechanism, to realize steady transmission.

Above-mentioned separating mechanism adopts vibratory sieve, carries out screening and separating by the paddy rice of vibratory sieve after with threshing.

The beneficial effect of this programme can be learnt according to the narration to such scheme, this rice harvester is with in the installed threshing separator, cylinder includes cut flow roller and is positioned at its rear and axial-flow type drum in parallel, the below of cut flow roller is provided with the cut flow roller concave grate, the below of axial-flow type drum is provided with the axial-flow type drum concave grate, and the straw outlet end of axial-flow type drum is fixedly connected with chopper.Cut flow roller is carried out the secondary threshing by axial-flow type drum to it after paddy rice is carried out preliminary threshing, to realize better threshing effect, to reduce the field loss rate of paddy rice.After threshing is finished, by chopper straw is carried out mincing and returning to the field, both environmental protection can not destroy the organic principle of soil again.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is conspicuous.

Description of drawings

Fig. 1 is the main TV structure schematic diagram of the utility model embodiment.

Fig. 2 is the plan structure schematic diagram of the utility model embodiment.

Among the figure, 1 is cut flow roller, and 2 is axial-flow type drum, and 3 is frame, and 4 is vibratory sieve, and 5 is the axial-flow type drum concave grate, and 6 is the cut flow roller concave grate, and 7 is moving knife, and 8 is stationary knife, and 9 is chopping cylinder, and 10 is chopper, and 11 is sprocket wheel, and 12 is chain.

Embodiment

For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by embodiment.

A kind of rice harvester installed threshing separator, as depicted in figs. 1 and 2, it comprisesframe 3, be supported on the cylinder on theframe 3 and be positioned at the separating mechanism of cylinder below, this separating mechanism adoptsvibratory sieve 4, described cylinder comprisescut flow roller 1 and is positioned at its rear and axial-flow type drum 2 in parallel,cut flow roller 1 drives axial-flow type drum 2 by transmission mechanism (as chain-drive mechanism), the below ofcut flow roller 1 is provided with cut flow rollerconcave grate 6, the below of axial-flow type drum 2 is provided with axial-flow type drumconcave grate 5, the straw outlet end of axial-flow type drum 2 is fixedly connected withchopper 10, thischopper 10 comprises the choppingcylinder 9 of fixedlying connected with axial-flow type drum 2 and is fixed on stationary knife 8 on theframe 3 that choppingcylinder 9 is provided with themoving knife 7 that cooperates with stationary knife 8.

During operation,cut flow roller 1 is by chain-drive mechanism drivingshaft stream roller 2 and with the fixedly connected choppingcylinder 9 of axial-flow type drum 2 and it is synchronously with different rotational speed.

After the paddy rice for the treatment of threshing enters this installed threshing separator by the spout ofcut flow roller 1, earlier it is carried out elementary threshing bycut flow roller 1, the paddy rice grain of taking off is fallen on thevibratory sieve 4, byvibratory sieve 4 it is separated, impurity is wherein isolated, paddy stalk enters axial-flow type drum 2 along the tangential direction ofcut flow roller 1 under action of centrifugal force, by axial-flow type drum 2 it is carried out secondary threshing, separation.The paddy rice grain of being taken off is fallen on thevibratory sieve 4, byvibratory sieve 4 impurity in the paddy rice grain is isolated, the threshing on one side of paddy stalk in the axial-flow type drum 2, separation, axially moving of one edge axial-flow type drum 2 to its straw outlet end, the paddy stalk of finishing secondary threshing, separation enterschopper 10 by straw outlet, paddy stalk is shredded the back and is discharged under the mating reaction of stationary knife 8 and movingknife 7, realizes the mincing and returning to the field of paddy stalk.

Can pass through existing techniques in realizing without the technical characterictic of describing in the utility model, not repeat them here.

Claims (6)

1. rice harvester installed threshing separator, it comprises frame, be supported on the cylinder on the frame and be positioned at the separating mechanism of cylinder below, it is characterized in that: described cylinder comprises cut flow roller and is positioned at its rear and axial-flow type drum in parallel, the below of cut flow roller is provided with the cut flow roller concave grate, the below of axial-flow type drum is provided with the axial-flow type drum concave grate, and the straw outlet end of axial-flow type drum is fixedly connected with chopper.

2. rice harvester installed threshing separator according to claim 1 is characterized in that: described chopper comprises the chopping cylinder of fixedlying connected with axial-flow type drum and is fixed on stationary knife on the frame.

3. rice harvester installed threshing separator according to claim 2 is characterized in that: described chopping cylinder is provided with the moving knife that cooperates with stationary knife.

4. rice harvester installed threshing separator according to claim 1 is characterized in that: described cut flow roller drives axial-flow type drum by transmission mechanism.

5. rice harvester installed threshing separator according to claim 4 is characterized in that: described transmission mechanism adopts chain-drive mechanism.

6. rice harvester installed threshing separator according to claim 1 is characterized in that: described separating mechanism adopts vibratory sieve.

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