CN206932709U - Vibrating Sieve of Combine Harvester - Google Patents

Abstract

The utility model discloses a kind of Vibrating Sieve of Combine Harvester, including screen cloth, the screen cloth includes rectangular outer frame, outer inframe is provided with some branch pieces and horizontal stripe, the branch piece and horizontal stripe are orthogonal, branch piece and horizontal stripe are staggered to form the mesh of screen cloth, and the direction of vibration of the central axis of the horizontal stripe with screen cloth in the horizontal direction is parallel, and the top edge of horizontal stripe is jagged tooth；The branch piece is obliquely installed, and its inclined-plane is towards screen cloth feedstock direction, and the position that branch piece is corresponded in the lower edge of horizontal stripe is provided with breach one by one, and the branch piece is embedded in breach.The utility model has guide effect to the air-flow of blower fan blowout, guides it to blow to the discharging direction of vibratory sieve, be easy to send out emersion object, impurity etc. outside harvester by air-flow by the inclination of branch piece.Attachment structure between branch piece of the present utility model and horizontal stripe make it that the manufacturing process of the utility model vibratory sieve is more simple and easy to do in terms of existing technologies.

Description

Vibrating Sieve of Combine Harvester

Technical field

It the utility model is related to united reaper, more particularly to Vibrating Sieve of Combine Harvester.

Background technology

At present, most of united reaper uses Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve, and it mainly includes vibratory sieve and located at vibratory sieve The blower fan of lower section.Specifically, vibratory sieve is sieved using Integral double-deck, including corrugated plating, upper sieve, lower sieve and tail sheet, corrugated plating master Emersion object under threshing cylinder previous paragraphs is sent to upper sieve compass screen surface, and the impurity such as grain, clever chaff are layered.The main work of upper sieve With being the emersion object to be fallen from sheller unit separation notch board that roughing comes from corrugated plating conveying and direct, it is miscellaneous to discharge clever chaff etc. Matter.Lower sieve is mainly used in the selected grain fallen from upper sieve, and discharge is mixed in the debris such as the glume in grain, to ensure grain Cleannes.Tail sheet is mainly used in discharging short stem, and separates a small amount of grain being wherein mingled with.Blower fan includes preceding blower fan and rear wind Machine, preceding blower fan mainly blows to sieve and lower sieve, rear fan mainly blow to tail sheet.During work, vibratory sieve moves reciprocatingly, and grain mixes Compound is constantly sent to upper compass screen surface by corrugated plating, from corrugated plating under fall on upper sieve compass screen surface during, the air-flow of preceding blower fan blowout Grain mixture is dispelled, clever chaff, broken grass and the less impurity of quality are taken out of outside machine by air-flow, and larger grain of quality etc. stays in Moved after upper compass screen surface, grain leaks down during being moved rearwards from upper sieve, is carried out by lower sieve selected.Broken grass, short stem are by tail Sieve discharge, the air-flow of rear fan are made for auxiliary tail riddler.

The mesh form of vibratory sieve of the prior art has mesh-type, scale type etc., including upper sieve, lower sieve and tail sheet, its The air-flow of structure inconvenience blower fan blowout is by the way that the screen cloth of mesh-type is only capable of the blowout upwards in vertical direction of supply stream, fish scale The screen cloth of formula hinders air-flow and passed through because the sieve area of fish scale-shaped is big.So gas that screen cloth of the prior art can pass through Stream is smaller, emersion object, the situation of impurity blocking sieve aperture such as occurs, there is also the situation that airless passes through, just can not so incite somebody to action Emersion object is dispelled, and grain is difficult to therefrom separate, and a large amount of emersion objects can be caused to be accumulated in compass screen surface when serious, make vibratory sieve normal Work.

The Chinese utility model patent of Application No. 201220734243.4 in the prior art, disclose a kind of band conveying tooth The vibration screen of bar, including screen cloth, the screen cloth include cross bar and vertical pole, the more crisscross formation of cross bar and vertical pole The mesh of screen cloth, the cross bar are rack.Multiple through holes, the more rack longitudinal arrangements are provided with below the tooth of the rack The cross bar of the screen cloth is formed, the vertical pole is passed through from the through hole of the more racks and is fixed in the through hole.Institute It is steel wire or steel bar to state vertical pole, and the rack welding is on the vertical pole.The direction that the rack vibrates along vibration screen is set, Teeth directional vibration screen discharge end on the rack tilts.Although the technical scheme is with the interlaced formation of cross bar and vertical pole For grid as sieve aperture, aperture is larger, does not influence air-flow by but still following defect be present：

One is the absence of ir-flow guide function, i.e. the air-flow of blower fan blowout does not still obtain preferable guide effect, air-flow Easily vertically upward, airflow direction is disorderly, easily causes emersion object, impurity etc. to be difficult to, to vibratory sieve discharge end effective exercise, make The operating efficiency overall into cleaning plant is low, can not quickly discharge emersion object, impurity etc..

Second, the manufacturing process of vibratory sieve is complicated, vertical pole needs to pass through the through hole on some cross bars one by one, labor intensive, and Need after vertical pole is put on cross bar, just it can be welded and fixed, in order to ensure the neat of vibratory sieve, location difficulty.

Utility model content

In order to overcome drawbacks described above, the utility model provides a kind of Vibrating Sieve of Combine Harvester, and guiding fan airflow blows It is simple and easy to do to discharging direction, manufacturing process.

The utility model is achieved through the following technical solutions：

Vibrating Sieve of Combine Harvester, including screen cloth, the screen cloth include rectangular outer frame, and outer inframe is provided with some branch pieces and horizontal stroke Bar, the branch piece and horizontal stripe are orthogonal, and branch piece and horizontal stripe are staggered to form the mesh of screen cloth, the central axis and sieve of the horizontal stripe The direction of vibration of net in the horizontal direction is parallel, and the top edge of horizontal stripe is jagged tooth；The branch piece is obliquely installed, its inclined-plane Towards screen cloth feedstock direction, the position that branch piece is corresponded in the lower edge of horizontal stripe is provided with breach one by one, and the branch piece is embedded in breach.

Tooth on the horizontal stripe tilts towards screen cloth discharging direction.

The branch piece both ends are welded with housing, and the horizontal stripe both ends are welded with housing, are connected between the horizontal stripe and branch piece Place's welding.

The beneficial effects of the utility model：

Compared with prior art, the utility model has guide effect by the inclination of branch piece to the air-flow of blower fan blowout, Guide it to blow to the discharging direction of vibratory sieve, be easy to send out emersion object, impurity etc. outside harvester by air-flow.The utility model Branch piece and horizontal stripe between attachment structure cause the manufacturing process of the utility model vibratory sieve in terms of existing technologies more Add simple and easy to do, branch piece is fixed in present housing, is then connected to horizontal stripe in branch piece by breach, then weld.

Brief description of the drawings

Fig. 1 is the utility model dimensional structure diagram.

Fig. 2 is the utility model schematic top plan view.

Fig. 3 is A-A directions schematic cross-sectional view in Fig. 2.

Fig. 4 is the utility model horizontal stripe structural representation.

Fig. 5 is the utility model housing and branch piece connection status schematic diagram.

Embodiment

As shown in figure 1, the utility model includes screen cloth, the screen cloth includes rectangular outer frame 1, if being provided with the Heavenly Stems and Earthly Branches in housing 1 Piece 2 and horizontal stripe 3, the branch piece 2 and horizontal stripe 3 are orthogonal, and branch piece 2 and horizontal stripe 3 are staggered to form the mesh 4 of screen cloth, the horizontal stripe 3 Direction of vibration of the central axis with screen cloth in the horizontal direction it is parallel, the top edge of horizontal stripe 3 is jagged tooth 5；The branch Piece 2 is obliquely installed, and towards screen cloth feedstock direction, the position that branch piece 2 is corresponded in the lower edge of horizontal stripe 3 is provided with breach one by one on its inclined-plane 6, the branch piece 2 is embedded in breach 6.

Tooth 5 on the horizontal stripe 3 tilts towards screen cloth discharging direction.

The both ends of branch piece 2 are welded with housing 1, and the both ends of horizontal stripe 3 are welded with housing 1, the horizontal stripe 3 and branch piece 2 it Between junction weld.

Claims (3)

1. Vibrating Sieve of Combine Harvester, including screen cloth, it is characterised in that：The screen cloth includes rectangular outer frame, if outer inframe is provided with Heavenly Stems and Earthly Branches piece and horizontal stripe, the branch piece and horizontal stripe are orthogonal, and branch piece and horizontal stripe are staggered to form the mesh of screen cloth, in the horizontal stripe Direction of vibration of the mandrel line with screen cloth in the horizontal direction is parallel, and the top edge of horizontal stripe is jagged tooth；The branch piece tilts Set, towards screen cloth feedstock direction, the position that branch piece is corresponded in the lower edge of horizontal stripe is provided with breach, the branch piece one by one on its inclined-plane In embedded breach.

2. Vibrating Sieve of Combine Harvester according to claim 1, it is characterised in that：Tooth on the horizontal stripe goes out towards screen cloth Expect that direction tilts.

3. Vibrating Sieve of Combine Harvester according to claim 1 or 2, it is characterised in that：Welded with housing at the branch piece both ends Connect, the horizontal stripe both ends are welded with housing, and junction is welded between the horizontal stripe and branch piece.