CN2091527U - Wheat thresher - Google Patents

Abstract

The utility model relates to an improved wheat thresher, which is provided with a machine frame and a threshing barn. Threshing gears which are arranged in the shape of an isosceles triangle are arranged on a threshing wheel, the front upper part of the threshing barn is provided with a wheat inlet, the back wall of the threshing barn is provided with fixed threshing gears, and the bottom of the threshing barn is provided with an arched shelling plate of which the discharge end is provided with shelling gears. The arced shelling plate and the shelling gears make wheat completely shelled, and the lower part of the threshing barn is provided with a winnowing chamber in which a fan is arranged. Wheat shells and wheatgrass slag which enter the winnowing chamber are discharged from a wheat slag discharge outlet under the action of wind, and wheat grains are discharged from a wheat outlet on the lower part. The utility model has the advantages of complete separation of the grains and shells, high threshing rate and energy saving.

Description

Wheat thresher

The technical field that the utility model relates to is the wheat thresher.

The wheat thresher majority that uses in the rural area is that the wheat head and wheat stalk are all put into the threshing bin threshing at present; with the wheat sieve wheat straw slag is separated with wheat and wheat husk then; not only efficient is low for this class wheat thresher, and energy loss is big, and wheat straw is battered down and upsets and can not utilize again.Particularly because full shrivelled the differing of wheat, and the aperture of wheat sieve is changeless, therefore, causes big wheat not cross the wheat sieve, and little or shrivelled wheat do not shell just by the sordid hard nut to crack of wheat sieve formation sorting.In addition; the stripper wheel of existing wheat thresher is towards operating personnel's rotation, and under the effect of the centrifugal revolving force of stripper wheel, a large amount of dust are serious from wheat inlet effusion, air pollution; very harmful to health of operators, wide farmers is wished very urgently and can be made improvements.

Task of the present utility model is the wheat thresher of design improvement, adopts the shelling plate with the shelling tooth wheat to be separated totally with wheat husk, utilizes the selection by winnowing chamber to make wheat and the automatic sorting of wheat slag.

Task of the present utility model is finished by following technical proposals.

Wheat thresher described in the utility model; organic frame and threshing bin; stripper wheel is installed in the threshing bin; the threshing tooth is installed on the stripper wheel; one end of stripper wheel connects with last drive, and last drive connects with lower driving wheel by driving-belt, and lower driving wheel connects with line shaft; the threshing bin front upper part has wheat inlet; be characterized in, at the threshing bin rear wall fixedly threshing tooth of one row be housed, the bottom of threshing bin is an arc shelling plate; the exhaust end of arc shelling plate is equipped with one gets rid of the shell tooth; the bottom of threshing bin connects with the selection by winnowing chamber, and upper back, selection by winnowing chamber has out the wheat cinder notch, and bottom, selection by winnowing chamber has out Mai Kou; the indoor blower fan that is equipped with of selection by winnowing, the blower fan axle connects with line shaft.

The better design of wheat thresher described in the utility model is, the threshing tooth is isosceles triangle on stripper wheel arranges, and the back of threshing tooth is an inclined-plane, and fixedly the one side of the threshing tooth and the tooth that shells also is designed to the inclined-plane.

With reference to the accompanying drawings the utility model is done and described in further detail.

Fig. 1 wheat thresher schematic diagram

Fig. 2 left part is cutd open and is shown schematic diagram

Fig. 3 right side part is cutd open and is shown schematic diagram

With reference to Fig. 1～3, wheat thresher organic frame described in the utility model (1) and threshing bin (2), stripper wheel (3) is installed in the threshing bin (2), threshing tooth (4) is installed on the stripper wheel (3), the arrangement of threshing tooth (4) on stripper wheel is isosceles triangle, be that front one toothrow and back one toothrow are staggered, toothrow constitutes isosceles triangle with back adjacent two teeth of row before making, this arrangement mode has reduced the threshing tooth (4) on the stripper wheel and has been installed in the quantity that the fixedly threshing tooth (6) on the threshing bin rear wall (5) meets simultaneously, make duty ratio more even, reduce power consumption, avoided wheat straw to be wrapped between the threshing tooth simultaneously, the back of threshing tooth is an inclined-plane (7), helps threshing and wheat straw slag and slides; The right-hand member of stripper wheel stretches out threshing bin and connects with last drive (8), last drive connects with lower driving wheel (10) by driving-belt (9), lower driving wheel is nested on the line shaft (11), line shaft can be used as power by electromotor, diesel engine etc., last drive drives stripper wheel operating personnel's rotation dorsad, has reduced air pollution; The threshing bin front upper part is provided with wheat inlet (12), fixedly threshing tooth (6) of one row is housed on the threshing bin rear wall (5), the bottom of threshing bin is an arc shelling plate (13), the exhaust end (14) of arc shelling plate is equipped with one gets rid of shell tooth (15), arc shelling plate cooperates the friction and Extrusion power that produces that wheat is separated from wheat husk totally with shelling tooth and stripper wheel, fixedly threshing tooth (6) and shelling tooth (15) also design respectively inclined-plane (16) and (17), is convenient to threshing and wheat straw slag and slides; The bottom of threshing bin connects with selection by winnowing chamber (18), upper back, selection by winnowing chamber (18) has out wheat cinder notch (19), and bottom, selection by winnowing chamber is an arc inclination funnel, has out Mai Kou (20), the indoor blower fan (21) that is equipped with of selection by winnowing, blower fan axle (22) connects with line shaft (11).

The course of work of wheat thresher described in the utility model is such; Line shaft drives the blower fan rotation and turns clockwise by upper and lower drive and driving-belt speed change rear drive threshing crop rotation, be that the stripper wheel direction of rotation is operating personnel dorsad, operating personnel hold wheat the wheat head is sent into wheat inlet, squeeze in the threshing bin the wheat head is rough by the threshing tooth on the stripper wheel then, wheat is stirring once week back to fall the wheat head is all rough, and complete wheat straw obstructs can do other purposes; The threshing tooth takes the wheat head to that wheat, wheat husk and wheat straw slag are resolved in fixing threshing tooth place, shelling is clean by the wheat behind the fixing threshing tooth part still, enter the effect continuation shelling that is subjected to friction and Extrusion power in the arc shelling plate, and then pass through from the shelling between cog of exhaust end.Enter the selection by winnowing chamber, can guarantee that like this wheat separates with wheat husk totally; The wheat husk and the wheat straw slag that enter the selection by winnowing chamber are discharged from the wheat slag outlet under the wind-force effect, and wheat then enters the Sheng wheat apparatus from going out Mai Kou.

Wheat thresher described in the utility model has following advantage: (1) can do power with multiple engine, and power attenuation is little, and 550 watts single-phase motor just can drive; (2) shelling plate and the tooth that shells make that wheat separates with wheat husk totally, the percentage of thresh is high; (3) selection by winnowing separation grain, shell and careless slag are clean; (4) dorsad operating personnel's rotation of stripper wheel, air pollution is little; (5) this machine can be used for the rice that dewaters after changing a little, buys sweet potato, the purposes such as threshing corn.

Claims (2)

1; the wheat thresher; organic frame [1] and threshing bin [2]; stripper wheel [3] is installed in the threshing bin; threshing tooth [4] is installed on the stripper wheel; one end of stripper wheel connects with last drive [8]; last drive connects with lower driving wheel [10] by driving-belt [9]; lower driving wheel connects with line shaft [11]; the threshing bin front upper part has wheat inlet [12]; it is characterized in that fixedly threshing tooth [6] of a row being housed at threshing bin rear wall [5]; the bottom of threshing bin is an arc shelling plate [13], and the exhaust end [14] of arc shelling plate is equipped with one gets rid of shell tooth [15], and the preceding bottom of threshing bin connects with selection by winnowing chamber [18]; upper back, selection by winnowing chamber has out wheat cinder notch [19]; bottom, selection by winnowing chamber has out Mai Kou [20], the indoor blower fan [21] that is equipped with of selection by winnowing, and blower fan axle [22] connects with line shaft [11].

2, according to the described wheat thresher of claim 1, it is characterized in that the threshing tooth is isosceles triangle and arranges on stripper wheel, the back of threshing tooth is an inclined-plane (7), fixedly threshing tooth and shelling tooth also have an inclined-plane (16) and (17) respectively.

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