CN104584793A - Straw returning machine and anti-autogenous abrasion tool aprons thereof - Google Patents
Straw returning machine and anti-autogenous abrasion tool aprons thereof Download PDFInfo
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- CN104584793A CN104584793A CN201510039216.3A CN201510039216A CN104584793A CN 104584793 A CN104584793 A CN 104584793A CN 201510039216 A CN201510039216 A CN 201510039216A CN 104584793 A CN104584793 A CN 104584793A
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- tool rest
- special
- bearing pin
- grinding tool
- autogenous grinding
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Abstract
The invention relates to a straw returning machine and anti-autogenous abrasion tool aprons of the straw returning machine. The straw returning machine comprises a pair of tool aprons and a hinge pin; an axle hole is formed in the upper part of each tool apron; the hinge pin penetrates through the axle holes; a special-shaped counter bore is formed in the outer side of each axle hole; one end of the hinge pin is provided with a special-shaped boss; the special-shaped boss is matched with the special-shaped counter bores; the other end of the hinge pin is provided with a gasket and cotter pins. According to the straw returning machine and the anti-autogenous abrasion tool aprons of the straw returning machine disclosed by the invention, by matching the special-shaped counter bores with the special-shaped boss, the hinge pin is effectively prevented from rotating along with the rotation of a flail knife, and therefore the abrasion to the tool aprons is avoided, and the cost of harvesting operation is reduced.
Description
Technical field
The present invention relates to agricultural machinery technological field, particularly a kind of straw cutting apparatus and anti-autogenous grinding tool rest thereof.
Background technology
Straw cutting apparatus tool rest general in the market and the connected mode of flail knife are the form of circular hole to round pin axle, construction opening pin on round pin axle.Round pin axle can rotate in the circular hole of tool rest, due to straw cutting apparatus High Rotation Speed when work, velocity interval is 1600 ~ 2200 revs/min, when working, flail knife hits the rotation causing bearing pin in the process of stalk, the rotation of bearing pin will make itself and tool rest produce to rub, cause bearing pin, tool rest to wear and tear.For this reason, a kind of straw cutting apparatus and anti-autogenous grinding tool rest thereof are proposed.
Summary of the invention
The object of this invention is to provide a kind of straw cutting apparatus and anti-autogenous grinding tool rest thereof, to solve the defect existed in prior art.
The object of the invention is to be realized by following technical proposals: the anti-autogenous grinding tool rest of a kind of straw cutting apparatus, comprise a pair tool rest, bearing pin, the top of described a pair tool rest is provided with axis hole, and described bearing pin is installed in described axis hole, is provided with special-shaped counterbore in the outside of described axis hole; One end of described bearing pin is provided with special-shaped boss, and described special-shaped boss and described special-shaped counterbore match.
The object of the invention is to be realized by following technical proposals: a kind of straw cutting apparatus, along the fixing multiple above-mentioned anti-autogenous grinding tool rest of helix rule on the rotating shaft of described straw cutting apparatus.
The present invention compared with prior art tool has the following advantages:
The present invention is coordinated by special-shaped counterbore and special-shaped boss, prevents bearing pin with the rotation generation rotation of flail knife, thus avoids the wearing and tearing to tool rest, reduce harvesting cost.
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment one;
Fig. 2 is another structural representation of tool rest;
Fig. 3 is another structural representation of tool rest;
Fig. 4 is another structural representation of tool rest;
Fig. 5 is the scheme of installation of anti-autogenous grinding tool rest.
Description of reference numerals:
1-tool rest; 2-bearing pin; 3-axis hole; 4-abnormity counterbore; 5-abnormity boss; 6-flail knife; 7-profiled spacer; 8-jump ring; 9-inner sleeve; 10-field-returning machine rotating shaft; 11-split pin.
Embodiment
Embodiment one:
See Fig. 1, the anti-autogenous grinding tool rest of a kind of straw cutting apparatus, comprise a pair tool rest 1, bearing pin 2, the top of described a pair tool rest is provided with axis hole 3, and described bearing pin is installed in described axis hole, is provided with special-shaped counterbore 4 in the outside of described axis hole; One end of described bearing pin is provided with special-shaped boss 5, and described special-shaped boss and described special-shaped counterbore match.
See Fig. 5, same as the prior art, the other end of described bearing pin is provided with pad and split pin 11.
Further, described tool rest is made up of steel plate, be circular arc bottom described tool rest, curvature bottom described tool rest is identical with the curvature of straw cutting apparatus rotating shaft, accurate positioning when facilitating workman to be welded and fixed, ensure the quality of welding, described tool rest being weldingly fixed on field-returning machine rotating shaft 10 along helix rule.
In the present embodiment, the structure of described a pair tool rest 1 is identical, and described bearing pin 2 inserts in the special-shaped counterbore 4 of one of them tool rest, and described pad and split pin are installed in the special-shaped counterbore of another tool rest.Described tool rest arranges special-shaped counterbore, described bearing pin is arranged special-shaped boss 5, special-shaped counterbore and special-shaped boss mating reaction, the effective rotation stoping bearing pin, reduces the degree of wear of bearing pin, tool rest.
In the present embodiment, described special-shaped counterbore is square, and described special-shaped boss is square.When bearing pin runs through a pair tool rest, the special-shaped boss of end part of pin shaft is contained in special-shaped counterbore.
Further, the other end of described bearing pin is provided with profiled spacer 7 and jump ring 8, and described profiled spacer and described special-shaped counterbore match.Jump ring is more convenient for dismantling compared with split pin, and makes the assembling between bearing pin, flail knife, tool rest compacter, and quality of fit is high, effectively prevents the mutual wearing and tearing between the axially-movable of bearing pin and each parts, does not also increase any cost.
Further, described jump ring 8 is positioned at the inner side of described special-shaped counterbore 4.Described special-shaped counterbore can play a protective role to jump ring, prevents jump ring from cutter shaft rotary course, bumping against foreign object and come off, and then causes coming off of bearing pin and flail knife, affects the whole machine balancing of harvesting effect and straw cutting apparatus.
Further, flail knife 6 is arranged on a pair tool rest by described bearing pin.First tool rest is provided with bearing pin and is suitable for, by bearing pin, two or more flail knives are installed, one end of each flail knife is pivotally mounted on bearing pin, can prevent flail knife straw cutting apparatus rotating shaft also field operation time the sharp pounding that produces under and get loose.
Further, inner sleeve 9 is provided with in the axis hole of described flail knife.Described bearing pin, through the hole of inner sleeve, owing to having set up inner sleeve between bearing pin and flail knife, has avoided the direct friction between bearing pin and flail knife, when inner sleeve serious wear, changes inner sleeve, significantly reduces the cost of renewal part.
Further, see Fig. 2 to Fig. 4, the shape of described special-shaped counterbore 4 is polygon or ellipse.Described special-shaped counterbore can be triangle, square, regular pentagon, ellipse.Accordingly, the special-shaped boss on described bearing pin is also triangle, square, regular pentagon, ellipse.
More optimize, the shape of described special-shaped counterbore can also be zigzag, and accordingly, the special-shaped boss on described bearing pin is gear shape, and this special-shaped boss is meshed with this special-shaped counterbore.This kind of structure is more effective to stoping the rotation of bearing pin, even if under strong vibrations, is also down to minimum by the degree of wear of guarantee bearing pin, tool rest.
Further, the other end of described bearing pin is provided with internal thread hole, installs fastening bolt in described internal thread hole.Prevent bearing pin transfer in order to more effective, set up internal thread hole at the other end of bearing pin, utilize fastening bolt to carry out fastening, fastening bolt end is still dropped in the special-shaped counterbore of tool rest.
Further, the other end of described bearing pin is provided with external screw thread, and the external screw thread of described bearing pin is provided with double nut.Effectively prevent the another kind of structure of bearing pin transfer from being set up external screw thread at the other end of bearing pin, utilize double nut to carry out fastening, by two nuts and tight time, can realize preventing from loosening, double nut still drops in the special-shaped counterbore of tool rest.
Embodiment two:
A kind of straw cutting apparatus, along the anti-autogenous grinding tool rest described in fixing multiple embodiments one of helix rule on the rotating shaft of described straw cutting apparatus.Described anti-autogenous grinding tool rest can delay the wearing and tearing of tool rest axis hole, reduces the cost of straw-returning operation.
The content of the present embodiment is only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. the anti-autogenous grinding tool rest of straw cutting apparatus, comprise a pair tool rest, bearing pin, the top of described a pair tool rest is provided with axis hole, and described bearing pin is installed in described axis hole, it is characterized in that: be provided with special-shaped counterbore in the outside of described axis hole; One end of described bearing pin is provided with special-shaped boss, and described special-shaped boss and described special-shaped counterbore match.
2. anti-autogenous grinding tool rest according to claim 1, is characterized in that: the other end of described bearing pin is provided with profiled spacer and jump ring, described profiled spacer and described special-shaped counterbore match.
3. anti-autogenous grinding tool rest according to claim 2, is characterized in that: described jump ring is positioned at the inner side of described special-shaped counterbore.
4. anti-autogenous grinding tool rest according to claim 3, is characterized in that: flail knife is arranged on a pair described tool rest by described bearing pin.
5. anti-autogenous grinding tool rest according to claim 4, is characterized in that: be provided with inner sleeve in the axis hole of described flail knife.
6. anti-autogenous grinding tool rest according to claim 1, is characterized in that: the shape of described special-shaped counterbore is polygon, ellipse or zigzag.
7. anti-autogenous grinding tool rest according to claim 1, is characterized in that: the other end of described bearing pin is provided with internal thread hole, installs fastening bolt in described internal thread hole.
8. anti-autogenous grinding tool rest according to claim 1, is characterized in that: the other end of described bearing pin is provided with external screw thread, the external screw thread of described bearing pin is provided with double nut.
9. anti-autogenous grinding tool rest according to claim 1, is characterized in that: be circular arc bottom described tool rest, the curvature bottom described tool rest is identical with the curvature of straw cutting apparatus rotating shaft.
10. a straw cutting apparatus, is characterized in that: along fixing multiple anti-autogenous grinding tool rests as described in claim arbitrary in claim 1 to 9 of helix rule on the rotating shaft of described straw cutting apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039216.3A CN104584793A (en) | 2015-01-26 | 2015-01-26 | Straw returning machine and anti-autogenous abrasion tool aprons thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039216.3A CN104584793A (en) | 2015-01-26 | 2015-01-26 | Straw returning machine and anti-autogenous abrasion tool aprons thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104584793A true CN104584793A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510039216.3A Pending CN104584793A (en) | 2015-01-26 | 2015-01-26 | Straw returning machine and anti-autogenous abrasion tool aprons thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2479646A1 (en) * | 1980-04-03 | 1981-10-09 | Claas Ohg | Cutter for combine harvester - has blade holders each comprising cylindrical body with external bush accommodating blade |
| CN87210722U (en) * | 1987-11-10 | 1988-06-22 | 马继成 | Foldable sickle |
| CN201171287Y (en) * | 2007-06-19 | 2008-12-31 | 蒋行宇 | Horizontal weld type stalk crushing returning device |
| US20090191024A1 (en) * | 2007-12-19 | 2009-07-30 | Blake Neudorf | Bolt for attaching a rotary mower blade |
| CN203120489U (en) * | 2013-03-07 | 2013-08-14 | 新疆农垦科学院 | Straw smashing device |
| CN203340620U (en) * | 2013-07-17 | 2013-12-18 | 新疆农业科学院土壤肥料与农业节水研究所 | Improved straw application crushing device |
| CN204408974U (en) * | 2015-01-26 | 2015-06-24 | 中联重机股份有限公司 | A kind of straw cutting apparatus and anti-autogenous grinding tool rest thereof |
-
2015
- 2015-01-26 CN CN201510039216.3A patent/CN104584793A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2479646A1 (en) * | 1980-04-03 | 1981-10-09 | Claas Ohg | Cutter for combine harvester - has blade holders each comprising cylindrical body with external bush accommodating blade |
| CN87210722U (en) * | 1987-11-10 | 1988-06-22 | 马继成 | Foldable sickle |
| CN201171287Y (en) * | 2007-06-19 | 2008-12-31 | 蒋行宇 | Horizontal weld type stalk crushing returning device |
| US20090191024A1 (en) * | 2007-12-19 | 2009-07-30 | Blake Neudorf | Bolt for attaching a rotary mower blade |
| CN203120489U (en) * | 2013-03-07 | 2013-08-14 | 新疆农垦科学院 | Straw smashing device |
| CN203340620U (en) * | 2013-07-17 | 2013-12-18 | 新疆农业科学院土壤肥料与农业节水研究所 | Improved straw application crushing device |
| CN204408974U (en) * | 2015-01-26 | 2015-06-24 | 中联重机股份有限公司 | A kind of straw cutting apparatus and anti-autogenous grinding tool rest thereof |
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Application publication date: 20150506 |