CN2054254U - Multipurpose impact comb sheller unit - Google Patents

Abstract

The utility model relates to a thresher which provides a concentric liquid roller without teeth abreast beside the comb brush roller with bow teeth of the traditional thresher. The upper part of the utility model is provided with a libration body which can carry out the impacting and the beating by the use of the eccentric rotating parts of the libration body. The crop is positioned between the libration body and the roller without teeth, the threshing can be realized by the actions of the beating, the librating and the kneading produced by the moving of the libration body and the roller without teeth, and the seeds which are not threshed cleanly are bushed by the comb brush roller. The utility model can thresh various crops with different types.

Description

Multipurpose impact comb sheller unit

The utility model is a kind of agricultural sheller unit.

Present small farm thresher machine mainly is the threshing that is used for paddy rice and wheat, and its structure all is the form that the picking drum of a band bow tooth is set above seed collects bucket, when utilizing the cylinder rotation tassels of crops is curried and makes its threshing.This mode is better to the effect of rice threshing, but to the wheat weak effect, reason is that the strength difference of this two pole of ripe back is big.Because straw is very fragile, intensity difference, when cylinder curried, often wheat did not come off as yet and has been interrupted near the straw at tassel place is just first.Therefore to the threshing difficulty of these class crops, the separating mechanism complexity except that need have the picking drum that bends tooth, also will have as structures such as sieve, blades, so that the tassel that fractures cut, pushes, rubs etc. seed is come off.But even so, also normal blockage phenomenon, and the crop kernel that does not need to pulverize is rubbed carefully by pulverizing.On the other hand, the at present this formula thresher machine that curries also is difficult to carry out to the threshings of many crops such as Chinese sorghum, millet, soybean.

The purpose of this utility model provides a kind of sheller unit that can carry out effective threshing to the polytype crops.

The utility model sheller unit is based on the present formula that curries thresher machine; be arranged side by side a no dental roller in that toothed picking drum is other coaxial, the top of no dental roller also is provided with one can make the vibrating body that the reciprocally swinging formula is moved to this cylinder direction around the fixed axis of himself end.Be provided with the eccentric part that can rotate in the vibrating body, utilize its when rotation eccentric centrifugal force that produces and vibrating body is pumped.The eccentric rotary parts can adopt eccentric block commonly used, forms such as eccentric shaft.The rotation of eccentric rotary parts is driven through transmission mechanisms such as gear commonly used, belts by power source.When handle treats that the crop of threshing places between no dental roller and the vibrating body, the seed of crop just can major part come off under the rotation of the impact of vibrating body and cylinder interacts formed beating kneading action, and a small amount of seed of not taking off as yet can purify through currying of toothed rotor again.

Because the direction of the centrifugal force that employing eccentric rotary parts are produced in vibrating body is rotated, and is only useful effect power and have only when this centrifugal force points to crop.When centrifugal force does not point to crop, this power will produce unnecessary interference to frame, and frame is vibrated.For avoiding this situation, eccentric part should take in couples symmetric arrangement to be advisable.

In no dental roller and vibrating body acting in conjunction crops are patted when rubbing, no dental roller does not generally need to have same high rotating speed with the picking drum of band bow tooth.Therefore can pass through suitable gear, make no dental roller only make low speed rotation as the most frequently used gear shift.Rub effect in order to improve vibration, the surface of no cylinder and vibrating body can also have the wear-resistant material layer of lines or scraggly rough surface with one deck to the outer surface of this cylinder side.

Further describe the structure of the utility model sheller unit below in conjunction with embodiment shown in the drawings.

Fig. 1 side-looking structure chart of the present utility model

The A-A profile stretch-out view of Fig. 2 Fig. 1

Present embodiment is a kind of foot-operated small-sized thresher machine, and structure can be divided into the two large divisions, and the top of frame is a separating mechanism, and the below is that seed collects bucket 16.As seen from the figure, in separating mechanism, be arranged side by side the picking drum 15 that has or not dental roller 14 and band bow tooth on the drum shaft 7, its intermediate roll 15 is directly driven by driving wheel 5, and 14 on cylinder passes through train of reduction gears 6 by driving wheel 5 and drives, and makes cylinder 14 make low speed rotation.The top of no dental roller 14 is provided with a tabular vibrating body 12 that has cavity, and the one end connects with frame by fixed axis 10, and the other end is freely.Vibrating body 12 is attached with the rubber layer 13 of one deck band band at the outer surface to cylinder 14 1 sides.Be arranged with two eccentric shafts 11 in the cavity of vibrating body 12 in parallel, the arrangement requirement of the two is the projection mutual balance of centrifugal force on the two shaft coupling line that is produced when it is rotated, and be parallel to each other and superposeing perpendicular to the projection on the shaft coupling line direction, to increase the impact shock power that vibrating body 12 swings up and down around its end axle 10 works under the centrifugal action that produces when eccentric shaft 11 rotates.Connect by gear drive between two eccentric shafts.The rotation of eccentric shaft is driven through belt pulley set (8,9,17) by cylinder, can further reduce the vibration of vibrating body and the interference of actuation movement like this.Treadle 1, through rocking arm 2 and connecting rod 3 driving wheel 5 is rotated, thereby two cylinders (14,15) are rotated with different separately speed, two eccentric shafts 11 that also driven simultaneously in the vibrating body 12 through belt pulley set rotate, and vibrating body 12 is pumped to the direction of no dental roller 14.To treat that the threshing crop fills out that be put in can be by threshing between cylinder 14 and the vibrating body 12.In order to adjust the clearance distance of 12 of cylinder 14 and vibrating bodies, put to make things convenient for filling out of inhomogeneity threshing crop, one expansion bearing bar or rest pad can be set below vibrating body 12, can change the distance of 14 on vibrating body 12 and cylinder by changing its supporting-point position below vibrating body 12.

By foregoing as seen, the utility model sheller unit simple in structure, applied widely can be used for the crops threshing of number of different types. Test shows, adopts device of the present utility model to crop threshings such as paddy rice, both can impact afterwards earlier and curry, and also can directly use the picking drum threshing; During to pod class crop threshings such as soybean, can only do to impact to pat getting final product threshing, needn't curry, the picking drum of this moment has just only played flywheel.

Claims (5)

1, a kind of agricultural sheller unit that is provided with band stripping fork brush cylinder (15) on the bucket (16) that collects at seed, it is characterized in that and the coaxial no dental roller (14) that is arranged side by side of picking drum (15), the top of cylinder (14) is provided with can be around the reciprocating vibrating body (12) of fixed axis (10), at least be provided with a pair of eccentric rotary part (11) that is symmetric arrangement in the vibrating body (12), eccentric rotary part (11) is by the transmission mechanism driven rotary.

2, device as claimed in claim 1 is characterized in that said no dental roller (14) is driven through gear (6).

3, device as claimed in claim 1, the transmission mechanism that it is characterized in that the eccentric rotary part of said drive (11) is a belt transmissioning mode.

4, device as claimed in claim 1 is characterized in that said vibrating body (12) has the wear-resistant material layer (13) with rough surface in the surface attachment to cylinder (14) side.

5, device as claimed in claim 1, the below that it is characterized in that said vibrating body (12) are provided with the structure (4) that can change relative distance between itself and cylinder (14).