CN205961838U - Cereal combine screening case device - Google Patents

Abstract

The utility model relates to the technical field of agricultural m achinery, concretely relates to cereal combine screening case device, including sieve case casing, the front portion of sieve case casing sets up trapezoidal board and the trapezoidal steel wire group of bending, trapezoidal steel wire histotope in the upper end of the trapezoidal board of bending, and the upside at sieve case casing middle part sets up movable louver sieve, and the lower part of activity louver sieve sets up the woven screen board, and the middle part of sieve case casing lower extreme sets up the promotion fishplate bar, and sieve case body case rear's upside sets up straw profile of tooth board group, and the rear portion of sieve case casing lower extreme sets up the rethreshing fishplate bar, and the rear end of sieve case casing sets up the backplate, the utility model discloses simple structure, convenient and practical, the front and back end structure of sieve case is optimized more to the integrative wind channel that forms, the reinforcing rethreshing rate, and the transmission is simple reliable, the adjustment is convenient, easily install and change, and it has an obvious promotion to clean the effect, and rethreshing is rateed showing and is promoted the effectual reliability of an item that has improved.

Description

Grain combine screens case apparatus

Technical field

This utility model is related to agricultural machinery technological field and in particular to a kind of grain combine screens case apparatus.

Background technology

In recent years domestic grain combine quickly grows, and product is more and more ripe, and user proposes higher to harvester Requirement, wherein screen box is the detached main device of grain combine bran grain.Existing grain combine screening Case generally includes screen box housing, upper lip(ped) sieve, lower lip(ped) sieve, a few part of tail lip(ped) sieve, and seed enters cleaning room from threshing chamber Lip(ped) sieve on, original text bran blowout under blower fan blasting action, thus realize bran grain separating, therefore air force is very heavy with wind direction Will, de- rate is low again for existing screen box generally existing, the problem with replacing not easy to install.

Utility model content

In order to solve the deficiency in above-mentioned technical problem, the purpose of this utility model is：A kind of corn is provided to combine receipts Cutting mill screens case apparatus, and structure is novel, and the rate that takes off again is higher.

The technical scheme that this utility model is adopted by its technical problem of solution is：

Described grain combine screens case apparatus, and including screen box housing, the front portion of screen box housing arranges trapezoidal bending Plate and trapezoidal wire group, trapezoidal wire group is located at the upper end of trapezoidal bending plate, the upside setting activity fish scale of screen box housing central section Sieve, the bottom setting wire gauze sieve web plate of movable lip(ped) sieve, the middle part setting lifting fishplate bar of screen box housing lower end, screen box rear Upside setting straw castellated plates group, the multiple uncoupling plate of rear portion setting of screen box housing lower end, keep off after the rear end setting of screen box housing Plate.

Further preferably, trapezoidal bending plate is divided into two-layer, and connect setting up and down, and the bending plate of front end setting forms air channel, It is effectively guaranteed and clean effect.

Further preferably, straw castellated plates group is to be staggered to combine with straight round bar by profile of tooth bending plate to be formed, and protects Card bran grain is taken off operation again it is therefore prevented that trickling down of grain, improves and cleans effect.

Further preferably, trapezoidal wire group is assembled by after round steel wire bending and molding, for upper and lower cross structure Form, and there is, with screen box housing, the inclination angle raising from the front to the back, improve and clean effect.

Further preferably, wire gauze sieve web plate is to be formed by braided steel wire, and mesh specification is 15 × 15mm it is ensured that sieve plate is strong While spending, enhance seed by property, decrease the loss of seed.

Further preferably, backboard arranging elongated hole-shape installing port, can adjusting up and down it is ensured that cleaning quality after installation.

Compared with prior art, this utility model has the advantages that：

This utility model structure is simple, convenient and practical, and before and after screen box, end structure more optimizes, and is integrally formed air channel, Strengthen again take off rate, transmission simple and reliable, easy to adjust, be easily installed and change, clean effect and be obviously improved, again take off rate notable Lifting, effectively raises the reliability of product.

Brief description

Fig. 1 this utility model structural representation；

Fig. 2 this utility model structure sectional view.

In figure：1st, straw castellated plates group；2nd, movable lip(ped) sieve；3rd, wire gauze sieve web plate；4th, trapezoidal wire group；5th, trapezoidal bending Plate；6th, screen box housing；7th, lift fishplate bar；8th, multiple uncoupling plate；9th, backboard.

Specific embodiment

Below in conjunction with the accompanying drawings this utility model embodiment is described further：

As shown in Figure 1-2, grain combine described in the utility model screens case apparatus, including screen box housing 6, screen box The front portion of housing 6 arranges trapezoidal bending plate 5 and trapezoidal wire group 4, and trapezoidal wire group 4 is located at the upper end of trapezoidal bending plate 5, screen box The upside setting activity lip(ped) sieve 2 at housing 6 middle part, the bottom setting wire gauze sieve web plate 3 of movable lip(ped) sieve 2, screen box housing 6 lower end Middle part setting lifting fishplate bar 7, screen box housing 6 rear portion upside setting straw castellated plates group 1, the rear portion of screen box housing 6 lower end The multiple uncoupling plate 8 of setting, the rear end setting backboard 9 of screen box housing 6.

Movable lip(ped) sieve 2 is that sieve plate assembles, and sieve plate is identical can individually to be dismantled and adjustable angle；5 points of trapezoidal bending plate For two-layer, connect setting up and down, and the bending plate of front end setting forms air channel, is effectively guaranteed and cleans effect；Straw castellated plates Group 1 is to be staggered by profile of tooth bending plate and straight round bar to combine to be formed it is ensured that bran grain is taken off operation again it is therefore prevented that grain Unrestrained, improve and clean effect；Trapezoidal wire group 4 is assembled by after round steel wire bending and molding, for the knot that interlocks up and down The form of structure, and there is, with screen box housing 6, the inclination angle raising from the front to the back, improve and clean effect；Wire gauze sieve web plate 3 is by steel Silk braiding forms, and mesh specification is 15 × 15mm it is ensured that while sieve plate intensity, enhance seed by property, decrease The loss of seed；On backboard 9, elongated hole-shape installing port being set, can adjusting up and down it is ensured that cleaning quality after installation.

Specifically used process of the present utility model：

The material that drum threshing is isolated initially enters on the trapezoidal bending plate 5 on the anterior upper strata of screen box housing 6, in screen box fortune Dynamic with external fan air blast in the presence of material continue after spread, partial material cleaning through trapezoidal wire group 4 in screening process After fall directly on movable lip(ped) sieve 2, remaining material falls on the trapezoidal bending plate 5 of the anterior lower floor of screen box housing 6, Ran Houluo Enter on movable lip(ped) sieve 2, material falls directly on the wire gauze sieve web plate 3 of lower section after the cleaning of movable lip(ped) sieve 2, and is passing through The seed of finally cleaning of wire gauze sieve web plate 3 is directly entered in carrier by lifting fishplate bar 7, completes to clean, above-mentioned watering and separation procedure Present in bran grain field trash due to excess, be not spilled over outside screen box housing 6, and fall into the rear end of screen box housing 6 inner side, its Under the centrifugation through straw castellated plates group 1 and backboard 9, light bran is spilled over, and the debris containing seed are by taking off again Fishplate bar 8 falls directly into and takes off carrier again, enters screen box housing 6 by external rethreshing device, falls in trapezoidal wire group 4, lay equal stress on Multiple above-mentioned watering and separation procedure, carries out final election, and while reducing grain loss rate, improve grain combine cleans effect Really.

Claims (6)

1. a kind of grain combine screens case apparatus, including screen box housing (6) it is characterised in that before screen box housing (6) Portion arranges trapezoidal bending plate (5) and trapezoidal wire group (4), and trapezoidal wire group (4) is located at the upper end of trapezoidal bending plate (5), screen box Upside setting activity lip(ped) sieve (2) in the middle part of housing (6), bottom setting wire gauze sieve web plate (3) of movable lip(ped) sieve (2), screen box Middle part setting lifting fishplate bar (7) of housing (6) lower end, upside setting straw castellated plates group (1) at screen box housing (6) rear portion, sieve The multiple uncoupling plate (8) of rear portion setting of tank shell (6) lower end, rear end setting backboard (9) of screen box housing (6).

2. grain combine screening case apparatus according to claim 1 are it is characterised in that trapezoidal bending plate (5) divides For two-layer, connect setting up and down, and the bending plate of front end setting forms air channel.

3. grain combine according to claim 1 screening case apparatus are it is characterised in that straw castellated plates group (1) It is to be staggered to combine with straight round bar by profile of tooth bending plate to be formed.

4. grain combine screening case apparatus according to claim 1 are it is characterised in that trapezoidal wire group (4) is By assemble after round steel wire bending and molding.

5. grain combine screening case apparatus according to claim 1 are it is characterised in that wire gauze sieve web plate (3) is Formed by braided steel wire.

6. grain combine screening case apparatus according to claim 1 are it is characterised in that backboard (9) is above arranged Elongated hole-shape installing port.