CN202958191U

CN202958191U - Vibrating screen of combine-harvester

Info

Publication number: CN202958191U
Application number: CN 201220622315
Authority: CN
Inventors: 乌国民; 王敏; 胡万祥; 王战飞; 慎沈杰; 吴洁浩
Original assignee: HUZHOU FENGYUAN AGRICULTURAL EQUIPMENT MANUFACTURE CO Ltd
Current assignee: HUZHOU FENGYUAN AGRICULTURAL EQUIPMENT MANUFACTURE CO Ltd
Priority date: 2012-11-22
Filing date: 2012-11-22
Publication date: 2013-06-05
Anticipated expiration: 2022-11-22

Abstract

The utility model relates to the technology of combine-harvesters, and particularly relates to a vibrating screen of a combine-harvester. The technical scheme is that the vibrating screen of the combine-harvester comprises a screening box frame, an upper screen and a lower screen. The upper screen and the lower screen are longitudinally distributed between two sides of the screening box frame, and the upper screen comprises a whole plate with first screening holes. The vibrating screen facilitates elimination of straws and improves grain cleanliness.

Description

A kind of vibratory sieve of combine

Technical field

The utility model relates to the combining machine technology, particularly a kind of vibratory sieve of combine.

Background technology

Vibratory sieve in present technology, number be the reciprocating oscillating screen of the disclosed a kind of full feeding rice and wheat combine of utility model patent of CN200962743Y as Granted publication, it has upper sieve and lower sieve, then on it, sieve is to be formed by a plurality of strip sheet material arranged distribution, therefore, have long space between adjacent two plies, make straw easily drop to from the space on lower sieve, thereby make straw be difficult for being cleared out; And for example Granted publication number is the symmetry regulation vibration screen device of the disclosed combine of utility model patent of CN201290252Y, and its screen plate is also to be formed by a plurality of strip sheet material arranged distribution; And for example Granted publication number is the vibratory sieve of the disclosed a kind of grain header band lengthened blades of utility model patent of CN202077391U, and its vibratory sieve is also to be formed by many plies arranged distribution.

The utility model content

The purpose of this utility model is to provide a kind of vibratory sieve of combine, and this kind vibratory sieve is conducive to eliminate straw, improves the grain cleannes.

Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: a kind of vibratory sieve of combine, comprise the screening box-frame, vertically be distributed in top sieve and end sieve between described screening box-frame both sides, described top sieve comprises the whole plate that has the first sieve aperture.

Top sieve can be a whole plate of piece, also can be formed by two or more than two whole plate, the gap between adjacent whole plate should be less or seamless link or junction for forming a plurality of gaps; Thereby avoid making straw to drop on end sieve, make straw be convenient to be cleared out.

As of the present utility model preferred, described top sieve is the whole plate that has described the first sieve aperture.

As of the present utility model preferred, described whole plate undulate.

Be beneficial to the growth material and have toward contact the blowing device that acts on vibratory sieve on the holdup time on top sieve, particularly combine, corrugated setting just is particularly conducive to less material and is not blown away, thereby reduces percent of loss.

As of the present utility model preferred, both sides, described whole Lamb wave peak all have described the first sieve aperture.

Be convenient to, particularly be convenient to less material and fall into the first sieve aperture at the leeward side of whole plate, to reduce percent of loss.

As of the present utility model preferred, this kind vibratory sieve also comprises the tail sheet that is positioned at screening box-frame one end; The angle that a wherein side of both sides, described whole Lamb wave peak and horizontal plane form is greater than the angle of opposite side and horizontal plane formation; And form the more close tail sheet of this crest opposite side of the larger side of angle with horizontal plane.

Vibratory sieve also has the material shaking plate at the other end of screening box-frame; The wind direction of above-mentioned blowing device is generally to blow to tail sheet from the material shaking plate; Above-mentioned setting, making in both sides, whole Lamb wave peak wherein, a side of more close tail sheet is leeward side, and owing to spending closer to 90 than opposite side with the horizontal plane angle, so in both sides, whole Lamb wave peak wherein a side of more close tail sheet be difficult for wind-engaging to impact, the less material of being more convenient for drops from the first sieve aperture, to reduce percent of loss.

As of the present utility model preferred, a side and the formed angle of horizontal plane that the both sides at described whole Lamb wave peak and the angle of horizontal plane formation are larger are the 80-90 degree.

As of the present utility model preferred, sieve of the described end comprises the whole plate that has the second sieve aperture.

In the prior art, end sieve is formed by the wire track and column braiding often, and sieve of this end particularly tends to block grain or straw and so between two wires, thereby is not easy to cleaning; The generation of this kind phenomenon has been avoided in above-mentioned setting of the present utility model.

As of the present utility model preferred, sieve is for dull and stereotyped at the described end.

As of the present utility model preferred, the aperture of described the first sieve aperture is 1-2cm.

As of the present utility model preferred, the aperture of described the second sieve aperture is 1-2cm.

In sum, the utlity model has following beneficial effect: the utility model is simple in structure, and is easy to implement; Can effectively improve the grain cleannes, be beneficial to the cleaning vibratory sieve, also be conducive to reduce percent of loss.

Description of drawings

Fig. 1 is the example structure schematic diagram;

Fig. 2 is A section enlarged diagram in Fig. 1;

Fig. 3 is the embodiment rearview;

Fig. 4 is B section enlarged drawing in Fig. 3;

Fig. 5 is the embodiment end view.

In figure, 1, the screening box-frame, 5, the material shaking plate, 4, tail sheet, 2, top sieve, 3, end sieve, 61, the bearing with spherical outside surface of usheing to seat, 62, eccentric bearing block, 63, capacity eccentric bearing, 64, rotating shaft, 65, eccentric chain-wheel, 66, spring bearing, the 21, first sieve aperture, the 31, second sieve aperture, 41, catch.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make to the present embodiment the modification that there is no creative contribution as required after reading this specification, but as long as all are subject to the protection of Patent Law in claim scope of the present utility model.

Embodiment: as shown in Fig. 1-5, a kind of vibratory sieve of combine comprises screening box-frame 1, is respectively equipped with material shaking plate 5 and tail sheet 4 at the two ends of screening box-frame 1, also is distributed with up and down top sieve 2 and end sieve 3 between the both sides, middle part of screening box-frame 1.

Screening box-frame 1 all is provided with the bearing with spherical outside surface 61 of usheing to seat in both sides below tail sheet 4 sides, be fixed on the eccentric bearing block 62 of screening box-frame 1, be placed in the capacity eccentric bearing 63 in eccentric bearing block 62, two ends are placed in respectively in two bearing with spherical outside surfaces 61 of usheing to seat and are arranged in the rotating shaft 64 of capacity eccentric bearing 63, and a side of the bearing with spherical outside surface 61 of usheing to seat is provided with the eccentric chain-wheel 65 that is fixedly connected on rotating shaft 64 therein; Screening box-frame 1 is provided with spring bearing 66 at material shaking plate 5 side-lowers; Said structure formation under the cooperatively interacting of other external driver device drives the transmission mechanism that vibratory sieve moves back and forth and vibrates.

Top sieve 2 is a whole plate that has the first sieve aperture 21, and the aperture of the first sieve aperture 21 is 1-2cm, and this whole plate undulate, and the angle of a wherein side of these both sides, whole Lamb wave peak and horizontal plane formation is greater than the angle of opposite side and horizontal plane formation; And form the more close tail sheet 4 of this crest opposite side of the larger side of angle with horizontal plane; A side and the formed angle of horizontal plane that the angle that the both sides at whole Lamb wave peak and horizontal plane form is larger are the 80-90 degree; And both sides, whole Lamb wave peak all have the first sieve aperture 21; To improve the holdup time of material on top sieve 2, to reduce percent of loss, help simultaneously to improve the grain cleannes.

End sieve 3 is for having the whole plate of the second sieve aperture 31, and this whole plate can be flat board, and the aperture of the second sieve aperture 31 is 1-2cm.

Also be provided with two catch 41 below tail sheet 4, so that make the material that falls from tail sheet 4, can be from falling into the screw feeder of below between two catch 41, so that after being transferred, again screen; Screw feeder is not shown in the drawings.

Tail sheet 4 is netted; It is wavy that material shaking plate 5 also is.

Claims

1. the vibratory sieve of a combine comprises screening box-frame (1), vertically is distributed in top sieve (2) and end sieve (3) between described screening box-frame (1) both sides, it is characterized in that, described top sieve (2) comprises the whole plate that has the first sieve aperture (21).

2. the vibratory sieve of a kind of combine according to claim 1, is characterized in that, described top sieve (2) is for having the whole plate of described the first sieve aperture (21).

3. the vibratory sieve of a kind of combine according to claim 1 and 2, is characterized in that, described whole plate undulate.

4. the vibratory sieve of a kind of combine according to claim 3, is characterized in that, both sides, described whole Lamb wave peak all have described the first sieve aperture (21).

5. the vibratory sieve of a kind of combine according to claim 3, is characterized in that, this kind vibratory sieve also comprises the tail sheet (4) that is positioned at screening box-frame (1) one end; The angle that a wherein side of both sides, described whole Lamb wave peak and horizontal plane form is greater than the angle of opposite side and horizontal plane formation; And form the more close tail sheet of this crest opposite side (4) of the larger side of angle with horizontal plane.

6. the vibratory sieve of a kind of combine according to claim 5, is characterized in that, a side and the formed angle of horizontal plane that the angle that the both sides at described whole Lamb wave peak and horizontal plane form is larger are the 80-90 degree.

7. the vibratory sieve of a kind of combine according to claim 1, is characterized in that, described end sieve (3) comprises the whole plate that has the second sieve aperture (31).

8. the vibratory sieve of a kind of combine according to claim 7, is characterized in that, described end sieve (3) is dull and stereotyped.

9. the vibratory sieve of a kind of combine according to claim 1, is characterized in that, the aperture of described the first sieve aperture (21) is 1-2cm.

10. the vibratory sieve of a kind of combine according to claim 7, is characterized in that, the aperture of described the second sieve aperture (31) is 1-2cm.