CN201774845U

CN201774845U - Threshing device for harvester

Info

Publication number: CN201774845U
Application number: CN201020177268XU
Authority: CN
Inventors: 近藤博幸; 濱砂大吾; 丸山純一; 南野順一
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 2010-04-02
Filing date: 2010-04-02
Publication date: 2011-03-30
Anticipated expiration: 2020-04-02

Abstract

The utility model discloses a threshing device for a harvester, which comprises a threshing roller and an arc receiving net arranged on the lower side of the threshing roller and paved along the circumferential direction of the threshing roller. The receiving net is provided with criss-cross grid strips and a plurality of sieve meshes formed by enclosing the grid strips, wherein at least one separating plate is arranged on the receiving net along the arc direction; the receiving net is provided with at least one strengthening part which is adjoined with the separating plate on the front part of the forefront separating plate; and the grid strips of the strengthening part are wider than the other grid strips. In the threshing process, the front side of the forefront separating plate of the receiving net is the part which is most easily abraded, so in the utility model, the front side is designed as the strengthening part with wider grid strips for increasing the abrasion resistance and prolonging the service life of the receiving net.

Description

The sheller unit of grain header

Technical field

The utility model relates to a kind of grain header technical field, relates in particular to a kind of sheller unit of grain header.

Background technology

The sheller unit of combine is to be made of threshing portion, screening portion and recoverer.Wherein, described threshing portion possesses: be positioned at the top of threshing body Inner Front End side drum chamber, be positioned at the inside of this drum chamber and can freely drive the threshing cylinder of rotation and be positioned at the downside of threshing cylinder and accept net along the arc of the circumferential laying of threshing cylinder around the axle center before and after drum chamber; the operation principle of threshing portion be utilize threshing cylinder and accept between the net cylinder-concave clearance to take off and make the certain extruding force of deposits yields; repeatedly hit by the threshing tooth on the threshing cylinder in the rotation, and cereal is come off with the rubbing collision of accepting net.

Existing acceptance generally is provided with on the net along the dividing plate of circular arc direction layout, though the cycle that the setting of dividing plate can make crop be subjected in sheller unit increases, dynamics strengthens, through threshing, and to crop play fluffy and the upset effect, but in the threshing course, crop tends to be deposited on the grizzly bar of dividing plate front side, so just be easy to cause the wearing and tearing of this part, particularly accept the dividing plate of net forefront, it is near charging aperture, be contact grain, the position that the root bar is maximum, therefore wearing and tearing are also serious, and the words of long term wear have also just reduced the service life of accepting net.

Summary of the invention

The utility model purpose is: the sheller unit that a kind of grain header is provided, because in the threshing course, the place the most easy to wear often, front side of the dividing plate of the forefront of acceptance net, therefore the utility model is arranged to the slightly wide rib of grizzly bar with this place, just improve the wear resistence at this place, also prolonged the service life of accepting net simultaneously.

The technical solution of the utility model is: a kind of sheller unit of grain header, comprise threshing cylinder and be arranged on threshing cylinder downside, accept net along the arc of the circumferential laying of threshing cylinder, the described netting gear of accepting has the grizzly bar that is criss-cross arranged, and enclose the some sieve apertures that form by grizzly bar, described acceptance is provided with the dividing plate that a slice is arranged along the circular arc direction on the net at least, the described net of accepting is provided with rib near this dividing plate at least in the front portion of the dividing plate of forefront, the grizzly bar of this rib slightly is wider than the grizzly bar of other parts.

Above-mentioned when accepting net a slice dividing plate only being arranged, the described net of accepting is provided with rib in the front portion of this dividing plate; Aforementioned barriers is a slice when above, and the above-mentioned net of accepting can be only be provided with rib near this dividing plate in the front portion of the dividing plate of forefront, also can at the dividing plate of forefront and the front portion of other one or more dividing plates rib be set respectively simultaneously.

The utility model is when the acceptance of the dividing plate front side of forefront is provided with rib near this dividing plate on the net, and also the acceptance of the membrane backside of side in the end is provided with the rib near this dividing plate on the net.Install when accepting net like this, just need not carefully to check the fore-and-aft direction of accepting net,, also can play corresponding effect even oppositely install.

The technical scheme that the grizzly bar of above-mentioned rib slightly is wider than the grizzly bar of other parts has at least following several:

One of technical scheme: the number of the sieve aperture of described rib is consistent with the screen number of the compass screen surface of other homalographics, and the size of the sieve aperture of rib is less than the size of other sieve apertures.

Two of technical scheme: the size of the sieve aperture of described rib is big or small consistent with other sieve apertures, and the number of the sieve aperture of rib is less than the screen number of the compass screen surface of other homalographics.

Three of technical scheme: the size of the sieve aperture of described rib is less than the size of other sieve apertures, and the number of the sieve aperture of rib is less than the screen number of the compass screen surface of other homalographics.

The utility model has the advantages that: because in the threshing course, the place the most easy to wear often, front side of the dividing plate of the forefront of acceptance net, therefore the utility model is arranged to the slightly wide rib of grizzly bar with this place, has just improved the wear resistence at this place, has also prolonged the service life of accepting net simultaneously.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described:

Structural representation when Fig. 1 implements state for the utility model;

Fig. 2 is an end view of accepting net in the utility model;

Fig. 3 is the expansion schematic diagram of one of embodiment of acceptance net in the utility model;

Fig. 4 is two an expansion schematic diagram of accepting the embodiment of net in the utility model;

Fig. 5 is the profile of Fig. 4;

Wherein: 1 accepts net; 2,2a grizzly bar; 3,3a sieve aperture; 4 dividing plates; 5 ribs; 6 threshing cylinders; 61 threshing teeth; 7 drum chamber;

Embodiment

As shown in Figure 1, the sheller unit of combine is to be made of threshing portion, screening portion and recoverer.Described threshing portion possesses: be positioned at the top of threshing body Inner Front End side drum chamber 7, be positioned at the inside of this drum chamber 7 and can freely drive the threshing cylinder 6 that rotates and be positioned at the downside of threshing cylinder 6 and accept net 1 along the arc of the circumferential laying of threshing cylinder 6 around axle center X towards drum chamber 7 front and back; the operation principle of threshing portion be utilize threshing cylinder 6 and accept between the net 1 cylinder-concave clearance to take off and make the certain extruding force of deposits yields; hit for more than 61 time by the threshing tooth on the threshing cylinder 6 in the rotation, and cereal is come off with the rubbing collision of accepting net 1.

Embodiment one: extremely shown in Figure 5 as Fig. 1, the described net 1 of accepting has the grizzly bar 2 that is criss-cross arranged, and enclose the some sieve apertures 3 that form by grizzly bar 2, describedly accept to be provided with at least on the net 1 dividing plate 4 that a slice is arranged along the circular arc direction, the outstanding threshing handled thing that the front part of accepting net 1 is flowed to drum chamber 7 rears that is provided with of dividing plate 4 has given resistance, make the threshing handled thing be trapped in drum chamber 7 therefrom, and be easy to be subjected to the processing of threshing cylinder 6.Because in the threshing course, accept the place the most easy to wear often, front side of the dividing plate 4 of net 1 forefront, in order to address the above problem, the net 1 of accepting in the present embodiment is provided with rib 5 near this dividing plate 4 in the front portion of the dividing plate 4 of forefront, the grizzly bar 2a of this rib 5 slightly is wider than the grizzly bar 2 of other parts.

The above-mentioned situation that is provided with of accepting net 1 upper spacer 4 mainly contains following several:

When 1, accepting net 1 and have the above dividing plate 4 of a slice or a slice, the above-mentioned net 1 of accepting is provided with rib 5 near this dividing plate 4 in the front portion of the dividing plate 4 of forefront;

When 2, accepting netting gear the above dividing plate 4 of a slice is arranged, the above-mentioned net 1 of accepting can be provided with rib 5 respectively at the dividing plate 4 of forefront and the front portion of other one or more dividing plates 4 simultaneously.

The embodiment that the grizzly bar 2a of above-mentioned rib 5 slightly is wider than the grizzly bar 2 of other parts has following two kinds at least:

One of embodiment: as shown in Figure 3, the number of the sieve aperture 3a of described rib 5 is consistent with sieve aperture 3 numbers of the compass screen surface of other homalographics, and the size of the sieve aperture 3a of rib 5 is less than the size of other sieve apertures 3.

Two of embodiment: as shown in Figure 4, the size of the sieve aperture 3a of described rib 5 is big or small consistent with other sieve apertures 3, and the number of the sieve aperture 3a of rib 5 is less than sieve aperture 3 numbers of the compass screen surface of other homalographics.

Three of embodiment: the size of the sieve aperture 3a of described rib 5 is less than the size of other sieve apertures 3, and the number of the sieve aperture 3a of rib 5 is less than sieve aperture 3 numbers of the compass screen surface of other homalographics.

Embodiment two: it is based on embodiment one, accepts to have additional on the net 1 rib 5 near this dividing plate 4 at dividing plate 4 rear sides of accepting net 1 rear.Install when accepting net 1 like this, just need not carefully to check the fore-and-aft direction of accepting net 1, even oppositely install, also the threshing handled thing that can flow to the drum chamber rear to the front part of accepting net has given resistance, thereby make the threshing handled thing be trapped in drum chamber, and be easy to be subjected to the processing of threshing cylinder 6.

Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.In addition to the implementation, the utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the utility model scope required for protection.

Claims

1. the sheller unit of a grain header, comprise threshing cylinder (6) and be arranged on the downside of threshing cylinder (6), arc along the circumferential laying of threshing cylinder (6) is accepted net (1), the described net (1) of accepting has the grizzly bar (2) that is criss-cross arranged, and enclose the some sieve apertures (3) that form by grizzly bar (2), describedly accept to be provided with at least on the net (1) dividing plate (4) that a slice is arranged along the circular arc direction, it is characterized in that: the described net (1) of accepting is provided with rib (5) near this dividing plate (4) at least in the front portion of the dividing plate (4) of forefront, the grizzly bar (2a) of this rib (5) slightly is wider than the grizzly bar (2) of other parts.

2. the sheller unit of grain header according to claim 1 is characterized in that: the described net (1) of accepting in the end is provided with rib (5) near this dividing plate (4) in the rear portion of the dividing plate (4) of side.

3. the sheller unit of grain header according to claim 1 and 2, it is characterized in that: the number of the sieve aperture (3a) of described rib (5) is consistent with sieve aperture (3) number of the compass screen surface of other homalographics, and the size of the sieve aperture (3a) of rib (5) is less than the size of other sieve apertures (3).

4. the sheller unit of grain header according to claim 1 and 2, it is characterized in that: the size of the sieve aperture (3a) of described rib (5) is big or small consistent with other sieve apertures (3), and the number of the sieve aperture (3a) of rib (5) is less than sieve aperture (3) number of the compass screen surface of other homalographics.

5. the sheller unit of grain header according to claim 1 and 2, it is characterized in that: the size of the sieve aperture (3a) of described rib (5) is less than the size of other sieve apertures (3), and the number of the sieve aperture (3a) of rib (5) is less than sieve aperture (3) number of the compass screen surface of other homalographics.