CN2162081Y - Grains thresher - Google Patents

Abstract

The utility model discloses a grain thresher used on the floor, which is designed to solve the problem in present threshing of complicated structure, high cost, fly-up of glume and dust and bad operating environment. A threshing cylinder is provided with a suction blower at the end of a feeding mouth and a cleaning fan on the lower side, and a notch board is a wire net sieve with grids. The feeding effect is favorable owing to the suction effect of the two fans. The work environment of the operating staff is improved, the weight of the machine drops by 40%, the cost drops 50-60%, the thoroughness of threshing reaches more than 98.5%, the rate of reduction is less than 1%, the total loss rate is under 1.4%, and the cleaning degree is less than 99%. The utility model meets the purchasing power and use conditions in rural area.

Description

Grains thresher

The utility model relates to agricultural harvesting machinery, and particularly wheat, the paddy thing thresher of operation gone up in the field.It comprises with the lower part: frame, belt pulley, case, feeding platform, threshing cylinder, notch board, cleaning fan are formed.

The thresher kind of using at present in the rural area is a lot, ubiquity complex structure, cost be higher, use adjust complicated, make high, the incompatibility rural purchasing power level of requiring.There are different problems in indexs such as threshing performance, percentage of damage and total loss rate, particularly cleannes.What have adds the secondary selection by winnowing again in order to solve cleannes, causes complex structure.And clever shell, dust fly the field in the field, and environment is abominable, and peasant's operation is very arduous during the broiling summer.

Purpose of design of the present utility model is to provide a kind of simple in structure, easily manufactured, suitable villages and towns in rural areas enterprise manufacture level, low price, is fit to the rural purchasing power level, can satisfy the grain separator of main economic and technical indices on performance.Feed particularly that performance is good, cleannes are high, eliminate dust as far as possible, and improve operator's environment and working condition.

The purpose of this utility model realizes by following measure: the characteristics of this thresher are by feeding mouth one end the suction-type axial flow blower to be housed at cylinder shaft; threshing concave plate is the steel wire mesh screen; the feeding oral-lateral is equipped with cleaning fan below mesh screen; the upper encloser end has feeding mouth; at the feeding mouth place feeding platform is housed; have straw outlet in the tail end side, the threshing cylinder end is equipped with powered pulley, at drum shaft feeding mouth end the suction-type blower fan is housed.The notch board that clamps between upper encloser and the frame is the steel wire mesh screen, and feeding end cleaning fan is driven by cylinder shaft by belt pulley.Threshing cylinder can be the spiketooth type or the rasp bar formula of helical arrangement spike-tooth, or spike-tooth and rasp bar structure combining.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is an end view of the present utility model.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.Feeding mouth 2 is equipped with in the end of case 1, and feeding platform 3 is equipped with in the feeding mouth outside, and the case tail end has straw outlet 4.Frame 5 is equipped with threshing cylinder 6, and its tail end is equipped with powered pulley 7, at the feeding mouth end suction-type blower fan 8 is housed, and clamps notch board 9 between case 1 and frame, and notch board is the steel wire mesh screen, at mesh screen downside feeding mouth one end cleaning fan 10 is housed.Belt pulley on the cylinder shaft drives cleaning fan 10 by belt, and threshing cylinder can be spiketooth type or rasp bar formula or the spike-tooth rasp bar structure combining that the helical arrangement spike-tooth is housed.The operation principle of this thresher and process are such: cereal pushes threshing chamber along the feeding platform, cereal under the strike of threshing cylinder and the effect of rubbing by threshing.At this moment the suction-type blower fan plays an important role, the air-flow that the first sucks is inhaled into along feeding mouth, add the progradation of blade again, the feeding performance of cereal is good, crop is sucked threshing chamber automatically, it two is that the grain of threshing falls through mesh screen, and lighter straw and the assorted surplus rear that is blown to have been strengthened " drainages " and acted on.After the end of threshing chamber was finished last threshing, straw was by outside the spike-tooth straw outlet discharge from the side threshing chamber.Notch board is to be made of common side's eye steel wire, and this side's eye steel wire and cylinder have good frictional force, the kneading action when guaranteeing threshing, and the through performance of side's eye net grain is good, and the through performance of straw is then poor.The grain that falls from mesh screen, assorted surplusly then clean once more under the effect of cleaning fan make clever shell, assorted surplus being blown outside the body, and dropping under the body is to clean clean grain.Thisly the suction-type blower fan is housed and at bottom dress cleaning fan at feeding end, and straw is discharged at tail end, grain husk shell, the assorted surplus structural configuration that is blown down below, the environment that has guaranteed the operating personnel standing places is good, no dust, clean refrigerant air-flow is arranged again, improved operating personnel's condition of work.The feeding mouth of thresher, straw outlet are all on upper encloser.Between last cover and frame, cylinder one end is adorned powered pulley to the steel wire notch board by clamping, and other end dress sucks blower fan, and the belt of axle head drives the cleaning fan of bottom again.This drive mechanism is simple, makes easily, and is easy to adjust, firm reliable.

The utility model can take off wheat, and paddy rice also can take off corn.

It is power that embodiment adopts 5 kilowatts of electromotor or diesel engine below 12 horsepowers, and the drum shaft rotating speed is 1200-1300 rev/min, the heavy 70-90 kilogram of complete machine, productivity ratio is 750 kilograms/minute, and threshing performance is more than 98.5%, and percentage of damage is less than 1%, total loss rate is below 1.4%, and cleannes reach 99.2%.The big thresher weight saving 40% of rural area consumption at present, cost reduces 50-60%, is fit to the rural purchasing power level, welcome by the peasant.

Claims (2)

1; a kind of by frame (5); belt pulley (7); case (1); feeding platform (2); threshing cylinder (6); notch board (9); the grain separator that cleaning fan (10) is formed; it is characterized in that cylinder shaft leans on feeding mouth one end that suction-type axial flow blower (8) is housed; threshing concave plate (9) side of being eye steel wire mesh screen (9); the feeding oral-lateral is equipped with axial-flow type cleaning fan (10) below mesh screen; upper encloser (1) end has feeding mouth (2); feeding platform (3) is housed at the feeding mouth place; have straw outlet (4) in the tail end side; the threshing cylinder end is equipped with powered pulley (7); at drum shaft feeding mouth end suction-type blower fan (8) is housed; the notch board (9) that clamps between upper encloser (1) and the frame (5) is the steel wire mesh screen, is driven by cylinder shaft by belt pulley at feeding end cleaning fan (10).

2, grain separator according to claim 1 is characterized in that threshing cylinder can be spiketooth type or rasp bar formula or the spike-tooth and the rasp bar structure combining of helical arrangement spike-tooth.

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