CN201323784Y

CN201323784Y - Threshing device of rice/wheat combine harvester

Info

Publication number: CN201323784Y
Application number: CNU200820140974XU
Authority: CN
Inventors: 曹蜀立
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-27
Filing date: 2008-10-27
Publication date: 2009-10-14
Anticipated expiration: 2018-10-27

Abstract

The utility model belongs to an agricultural machine, and particularly relates to a threshing device of a rice/wheat combine harvester. The utility model discloses the threshing device of a rice/wheat combine harvester, and the threshing device comprises a housing, a machine frame, a threshing roller, a concave board and a clearance adjusting mechanism. The threshing device is characterized in that an elastic element is mounted in the clearance adjusting mechanism; one end of the elastic element is connected with a movable base of the clearance adjusting mechanism; and the other end of the elastic element is connected with a fixed base. Therefore, the rice/wheat combine harvester capable of automatically regulating the threshing clearance is formed. The threshing device can efficiently improve the grain threshing rate and avoid accidents of grass winding, blocking, and concave board and screen mesh breaking and the like.

Description

The sheller unit of rice/wheat combine

Technical field

The utility model belongs to agricultural machinery, particularly relates to the sheller unit of rice/wheat combine.

Technology back of the body border

Sheller unit on the rice/wheat combine of the prior art, in threshing course be utilize between threshing cylinder and the notch board cylinder-concave clearance to take off when making the certain extruding force of deposits yields, by the threshing tooth on the threshing cylinder in the rotation repeatedly hit with the collision of the rubbing of notch board under cereal is come off, and cereal is separated by the notch board screen cloth.Wherein, can whether the cylinder of setting in the sheller unit and the size of the cylinder-concave clearance between the notch board adapt to the extruding force that crop forms with this cylinder-concave clearance, be one of key factor that obtain best threshing effect.And the setting of cylinder-concave clearance size, in sheller unit, have plenty of and when device fabrication, just configure, have plenty of sheller unit and be provided with gap adjusting mechanism, cylinder-concave clearance is divided into large, medium and small different a plurality of cylinder-concave clearances, set the size of cylinder-concave clearance by adjusting gear.No matter the setting means of above-mentioned the sort of cylinder-concave clearance, its common feature is in threshing course, the size of cylinder-concave clearance just is provided with before threshing begins and has fixed, the design feature of this fixed clearance mechanism is, its best threshing effect only adapts in the large and small of cylinder-concave clearance and the extruding force of making deposits yields, and extruding force is comparatively stable, just may not obtain when having bigger variation.And in actual threshing course, cylinder-concave clearance can be because the standing grain amount of cutting that causes during because of wheel-slip when the lack of uniformity of crop amount or grain header advance during artificial feeding be unbalanced and because of climate relationship to the size of the extruding force of making deposits yields: make the reason on an equal basis of the different and crop kernel maturity of the water content of crop as drench crop because of rainwater or fog, and the extruding force size that causes crop to produce in fixed cylinder-concave clearance is in a kind of state extremely unstable and that constantly change, the fault that when fixed cylinder-concave clearance becomes excessive to the extruding force of making deposits yields, grass or obstruction will occur twining, even the notch board screen cloth that can rise brokenly because of extruding force is excessive causes equipment breakdown, be forced to stop threshing work, remove the stifled crop of plug, and readjust cylinder-concave clearance or equipment is overhauled, take a lot of work, time-consuming, have a strong impact on operating efficiency, and when under excessive extruding force, carrying out threshing, can cause the percentage of damage of crop kernel to increase and increase with kinetic equation loss.And when fixed cylinder-concave clearance becomes too small to making the deposits yields extruding force, can produce again that to take off most rate low, percentage of impurity is high and cause the grain proportion of goods damageds not reach the threshing quality standard of national regulation.In order to address the above problem, Kong Xiangtu disclose a kind of can with the matching used patent of invention of combine: number of patent application is 89105416.2, patent name: hole spiral, ejective cleaning and selection separation of flow thresher.Its purpose is to solve existing thresher emersion object percentage of impurity height; what produce when the crop water content is big twines grass or plugging fault; the big three big problems such as grade of threshing power consumption; its formation characteristics are to be furnished with the spiral of hole leaf on the garden girth of the threshing cylinder in sheller unit; utilize its to the impact strength of crop a little less than; the threshing time, long characteristic reduced the percentage of damage to cereal, twined defect such as grass, obstruction and threshing loss.Its shortcoming is that the threshing effect there is no bigger raising, poor reliability, and threshing element structure complexity, technology cost height.

Kubo field company of Japan strain society discloses a kind of patent of invention: number of patent application: 98117878.2, and applicant, the social Kubo of Japanese strain formula field.Patent name: the thresher in the combining machinery; its purpose is to reduce the threshing load of cylinder; because of rainwater or fog drench crop; also not producing crop when making the crop water content higher stops up; and the intensity and the service life of improving the notch board screen cloth, its design feature is to make the braided steel wire net on the notch board or synthetic resin net into make with steel plate grid-type concave.Its shortcoming is and fails obviously to improve the generation that careless situation is blocked up in threshing, and manufacturing cost is higher.

Content of the present utility model

The purpose of this utility model is the sheller unit at a kind of rice/wheat combine that provides outside the above-mentioned the deficiencies in the prior art, with the size of the cylinder-concave clearance between threshing cylinder and the notch board in the prior art of sheller unit when the threshing is the fixed cylinder-concave clearance structure that is in the state of immobilizing, and makes the extruding force that can constantly change along with crop of in the threshing course cylinder-concave clearance between the threshing cylinder and notch board into and adjust a kind of movable cylinder-concave clearance structure of cylinder-concave clearance size automatically in cylinder-concave clearance.Thereby make the size of the cylinder-concave clearance between threshing cylinder and the notch board and it be in the optimum Match state all the time to the extruding force of making deposits yields.With solve exist in the prior art to take off most rate low, it is high to close assorted amount, power consumption penalty is big, crop is easily taken place twine grass or obstruction, even problem such as the bad notch board screen cloth that rises.Improved the work quality of sheller unit greatly, reduced grain loss, saved power consumption, enhanced productivity etc.And low cost of manufacture, the automaticity height, technology is simple and reliable.Can be widely used in the agricultural machinery such as rice/wheat combine.

Solution of the present utility model is a kind of sheller unit of rice/wheat combine, comprise housing, frame, threshing cylinder, notch board, the gap adjusting mechanism of threshing cylinder and notch board, wherein, case cover is in the frame outside, on the rack-mounted idler of threshing cylinder, the idler that the fixed bearing of gap adjusting mechanism and frame connect and compose on firm banking or fixed bearing and the frame connects and composes firm banking, the mobile base of gap adjusting mechanism is installed on the firm banking by fixed bearing, and can slide up and down, notch board is positioned at threshing stream tube one side, and be installed on the mobile base or be installed on the firm banking, or be installed on the frame, it is characterized in that between mobile base in the gap adjusting mechanism and the firm banking in the gap adjusting mechanism flexible member being installed.

The flexible member of gap adjusting mechanism described in the sheller unit of above-mentioned rice/wheat combine is mounted on the fixed bearing in the gap adjusting mechanism, and an end of this flexible member and the mobile base in the gap adjusting mechanism link.

One end of the flexible member of gap adjusting mechanism described in the sheller unit of above-mentioned rice/wheat combine and the firm banking of gap adjusting mechanism link, and the mobile base of the other end and gap adjusting mechanism links.

Flexible member described in the sheller unit of above-mentioned rice/wheat combine in the gap adjusting mechanism is elastomer or the elasticity hydraulic press that spring or elastomeric material are made.

Advantage of the present utility model is in the sheller unit with prior art, the gap adjusting mechanism that adopt threshing cylinder and concave clearance can't adapt to crop in cylinder-concave clearance by the time extruding force that constantly changes cause to take off most rate low, easily twine grass, stop up, the notch board screen cloth rises brokenly, the movable gap adjusting mechanism that the fixed cylinder-concave clearance structure that the threshing power consumption penalty is big has automatic adjustment cylinder-concave clearance magnitude function instead, the characteristic that this movable gap adjusting mechanism utilizes flexible member to have to elongate or shorten automatically with the size variation of active force, make the cylinder-concave clearance can be with the variation of the extruding force of crop and change gap length automatically, thereby guaranteed cylinder-concave clearance can be automatically and the crop extruding force adapt, effectively raise the most rate of taking off, reduced the threshing power consumption penalty, prevent to twine grass, stop up, the generation of faults such as the notch board screen cloth is risen brokenly and accident, improved the quality of sheller unit greatly, the automaticity height has improved production efficiency.In addition, it is simple and reliable also to have a process structure, advantages such as low cost of manufacture.Can be applied in widely on the agricultural machinery such as rice/wheat combine.

Description of drawings

Below in conjunction with accompanying drawing concrete structure of the present utility model is described further

Description of drawings is as follows:

Fig. 1 is first kind of knot signal composition of the sheller unit of the rice/wheat combine that provides of the utility model.

Fig. 2 is second kind of structural representation of the sheller unit of the rice/wheat combine that provides of the utility model.

Fig. 3 is the third structural representation of the sheller unit of the rice/wheat combine that provides of the utility model.

Fig. 4 is the 4th a kind of structural representation of the sheller unit of the rice/wheat combine that provides of the utility model.

Embodiment

Embodiment one, sees accompanying drawing 1

The sheller unit of the rice/wheat combine that the utility model provides is shown in figure one: comprise housing (1), frame (2), two threshing cylinders (3), notch board (9), the fixed bearing (5) and the mobile base (8) of the gap adjusting mechanism of threshing cylinder (3) and notch board (9), wherein, housing (1) covers on frame (2) outside, two threshing cylinders (3) are installed on the idler (4) on the frame (2), two fixed bearings (5) in the gap adjusting mechanism be two bolts constitute and with frame (2) on idler (4) the formation firm banking that is welded together, two fixed bearings (5) that the mobile base of gap adjusting mechanism (8) is installed on the firm banking are gone up and can be slided up and down, notch board (9) is positioned at a side of threshing cylinder (3), and be installed on the mobile base (8), flexible member is that two springs (6) are installed in respectively on the fixed bearing (5) of gap adjusting mechanism, one end of this spring (6) and mobile base (8) link, the other end connects with adjusting nut (7), after regulating the pretightning force of spring (6) by this nut (7), utilize spring (6) to be subjected to external force and make the characteristic that the time spent can elongate or shorten automatically with the size of active force, make cylinder-concave clearance size variation can along with crop from the cylinder-concave clearance of threshing cylinder (3) and notch board (9) by the time the continuous variation of the extruding force size that forms and the size of regulating cylinder-concave clearance automatically, the best threshing state that the size that has guaranteed the cylinder-concave clearance between the threshing cylinder (3) and notch board (9) in the threshing course adapts with the crop extruding force all the time.Improved the most rate of taking off of crop kernel, reduced percentage of damage, reduced loss and the crop of grain in threshing course and twined grass, plugging fault.And prevented the equipment breakdown that the notch board screen cloth is risen brokenly by crop to take place, reduced the power attenuation in the threshing course.

Embodiment two, see accompanying drawing 2

The sheller unit of the rice/wheat combine that the utility model provides is as shown in Figure 2: comprise a threshing cylinder (3), be installed on the idler (4) of frame (2), fixed bearing (5) is made of two bolts and is fixed together and constitutes firm banking (12) with movable frame in the frame (2).Flexible member wherein is the elastomer made from elastic caoutchouc (11); Long 30 centimetres of this elastomer (11), wide 5 centimetres, high 5 centimetres, be installed on the firm banking (12), one end of elastomer (11) connects with mobile base (8), the other end is connected with firm banking (12), and regulates the pretightning force of this elastomer (11) by the nut (7) on the fixed bearing (5).All the other are identical with embodiment one.

Embodiment three, see accompanying drawing 3

The sheller unit of the rice/wheat combine that the utility model provides, as shown in Figure 3: the fixed bearing of two strap bolts (5) is fixed together with frame (2) welding and constitutes firm banking (12), flexible member wherein is that two elasticity hydraulic presses (10) are installed on the firm banking (12), one end of elasticity hydraulic press (10) connects with mobile base (8), the other end connects with firm banking (12), and regulates the pretightning force of two elasticity hydraulic presses (10) by the nut (7) on the fixed bearing (5).All the other are identical with embodiment one.

Embodiment four, see accompanying drawing 4

The sheller unit of the rice/wheat combine that the utility model provides, as shown in Figure 4: comprise two threshing cylinders (3), be installed on the idler (4) on the frame (2), fixed bearing (5) is to be constituted and be welded to connect in frame (2) by two bolts to go up the formation firm banking, mobile base (8) connects into an integral body with idler (4), and notch board (9) is connected on the frame (2).All the other are identical with embodiment one.

Claims

1, the sheller unit of rice/wheat combine, comprise housing, frame, threshing cylinder, notch board, the gap adjusting mechanism of threshing cylinder and notch board, wherein, case cover is in the frame outside, on the rack-mounted idler of threshing cylinder, the fixed bearing of gap adjusting mechanism connects the idler that constitutes on firm banking or fixed bearing and the frame and connects and composes firm banking with frame, the mobile base of gap adjusting mechanism is installed on the firm banking by fixed bearing, notch board is positioned at threshing cylinder one side, and be installed on the mobile base or be installed on the firm banking or be installed on the frame, it is characterized in that between mobile base in the gap adjusting mechanism and the firm banking in the gap adjusting mechanism flexible member being installed.

2, the sheller unit of rice/wheat combine according to claim 1; The flexible member that it is characterized in that described gap adjusting mechanism is mounted on the fixed bearing in the gap adjusting mechanism, and an end of this flexible member and the mobile base in the gap adjusting mechanism link.

3, the sheller unit of rice/wheat combine according to claim 1; It is characterized in that the end of flexible member of described gap adjusting mechanism and the firm banking of gap adjusting mechanism link, the mobile base of the other end and gap adjusting mechanism links.

4,, it is characterized in that the flexible member in the described gap adjusting mechanism is elastomer or the elasticity hydraulic press that spring or elastomeric material are made according to the sheller unit of claim 1,2 or 3 described rice/wheat combines.