CN210202376U - Portable anti-breaking rotary cultivator blade and blade holder - Google Patents
Portable anti-breaking rotary cultivator blade and blade holder Download PDFInfo
- Publication number
- CN210202376U CN210202376U CN201920880763.8U CN201920880763U CN210202376U CN 210202376 U CN210202376 U CN 210202376U CN 201920880763 U CN201920880763 U CN 201920880763U CN 210202376 U CN210202376 U CN 210202376U
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- blade
- bolt
- mounting
- holder
- mounting hole
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Abstract
The utility model relates to a portable anti-breaking rotary cultivator blade and a blade holder, wherein the mounting end of the blade is provided with one or two mounting holes which are matched with mounting bolts and are arranged on the blade holder, the side edge of the blade is clamped on a shearing bolt when the mounting hole is single, the blade holder is composed of two parallel side plates which are welded on a rotary cultivating shaft, the two side plates are provided with mounting holes which correspond to the mounting bolts and the shearing bolt, and the blade is inserted between the two side plates and is fixed by the fixing bolts and the shearing bolts; when two mounting holes, one of them construction bolt is the shear bolt, and the both sides board of blade holder has the arc notch unanimous with rotary tillage axle radius to supply the welding, and blade and shear bolt contact department can have indent bayonet socket or do not have the bayonet socket, and the twice of shear bolt's anti-shear strength is less than the anti breaking strength of blade to protect the blade to avoid the rupture. The utility model discloses anti-shear capacity is high one time under the same bolt condition, and effective protection blade avoids the rupture, reduces and changes bolt number of times and consume, low-cost high-efficiency.
Description
Technical Field
The utility model relates to an agricultural machinery accessory, especially an anti rotary cultivator blade of portable and anti-breaking and blade holder.
Background
The blade of the rotary cultivator is arranged on the blade holder, the blade holder is directly welded on the rotary tillage shaft, and the blade is easily broken when encountering stones or other hard foreign matters. For this reason, the applicant has made many improvements, and one of the proposals is the utility model patent "rotary cultivator cutter anti-breaking protection device" with publication number CN 206237741. This patent changes original bayonet blade holder into unilateral two bolt modes, and this kind of blade holder is with two bolt fastening rotary tillage blades, and when meetting the stone, one of them bolt is cut off at first, and the blade has walked around the stone, has protected the blade effectively. After a period of production practice, the applicant finds that the cutter holder still has certain defects, namely the low strength of the bolt is frequently sheared, the time for replacing the bolt occupies the time of normal ploughing, the working efficiency is reduced, and meanwhile, the production cost is increased to a certain extent. The high bolt intensity increases the cost to a certain extent, and the blade is fragile simultaneously, and two bolts need be dismantled simultaneously when changing the blade, wastes time and energy.
Disclosure of Invention
Therefore, the utility model provides a portable anti-fracture rotary cultivator blade and blade holder makes it improve one time at anti-shear capacity under the same bolt condition, can effectively protect the blade to avoid the rupture simultaneously again, reduces and changes bolt number of times and consumption, reduction in production cost improves the work efficiency to this overcomes prior art's not enough.
The utility model provides a portable anti-breakage rotary cultivator blade and a blade holder, which is characterized in that the mounting end of the blade is provided with one or two mounting holes which are matched with mounting bolts and are arranged on the blade holder, the side edge of the blade is clamped on a shearing bolt when the mounting hole is single, the blade holder consists of two parallel side plates which are welded on a rotary cultivating shaft, the mounting holes corresponding to the mounting bolts and the shearing bolt are arranged on the two side plates, and the blade is inserted between the two side plates and is fixed by a fixing bolt and the shearing bolt; when the two mounting holes are formed, one mounting bolt is a shear bolt.
The mounting holes of the double-mounting-hole blade and the single-mounting-hole blade are both on the central line.
An upper pulling plate and a lower pulling plate are welded between the two side plates of the cutter holder to increase the strength of the cutter holder.
Two side plates of the cutter holder are provided with arc notches with the same radius as the rotary tillage shaft so as to be convenient for welding.
The blade mounting end is straight, a single mounting hole is formed at a near point or a far point away from the rotary tillage shaft, and when the single mounting hole is formed at the near point, the shearing bolt contacts with the upper left corner of the mounting hole and blocks the blade; when the mounting hole is opened at a far point, the shear bolt contacts and blocks the blade at the lower right corner of the mounting hole.
The contact part of the blade and the shearing bolt can be provided with a concave bayonet or no bayonet.
The shear bolt has a shear strength of less than twice the shear strength of the blade to protect the blade from breaking.
The end of the blade mounting end is provided with an arc so that the shearing bolt can be sheared off, and the mounting end can slide to make way of the stone when rotating out to protect the machine element.
The utility model discloses a blade is installed between the both sides board of blade holder, lets shear bolt block the blade for shear bolt's the face of receiving the shear increases to two from one, and the shear strength of bolt has increased one time. When the blade meets a stone in cultivation, the shear bolt is sheared into three sections. Therefore, the diameter of the shear bolt can be reduced according to the principle that the shear bolt is sheared before the blade, and the cost is reduced.
The utility model discloses can only use a construction bolt fixed blade for the installation with dismantle swiftly convenient, improved the work efficiency.
Therefore, the utility model has the characteristics of anti shear capacity improves the one time under the same bolt condition, can effectively protect the blade to avoid the rupture simultaneously again, reduces and changes bolt number of times and consumption, low-cost high work efficiency etc.
Drawings
Fig. 1 is an integrated front view of the blade and the blade holder of the dual mounting bolts of the present invention.
Fig. 2 is an integrated top view of the blade and the tool holder with two mounting bolts of the present invention.
Fig. 3 is a front view (partially cut away) of the blade and blade holder assembly with a single mounting hole at a remote location.
Fig. 4 is a top view (partially cut away) of the blade and blade holder assembly with a single mounting hole at a remote location.
Fig. 5 is a front view (partially cut away) of the blade and blade holder assembly with a bayonet at a close point for a single mounting hole of the present invention.
Fig. 6 is a front view (partially omitted) of the blade with a bayonet at a far point in a single mounting hole of the present invention.
Fig. 7 is a top view (partially omitted) of a single mounting hole of the present invention with a bayonet at a remote point.
Fig. 8 is a front view of the single mounting hole of the present invention.
Fig. 9 is a top view of the single mounting hole of the present invention.
Fig. 10 is a left view of the tool holder with a single mounting hole at a far point.
Fig. 11 is a front view of a single mounting hole blade with a bayonet at a near point.
Fig. 12 is an integrated schematic view of a bayonet-free blade and a blade holder at a far point with a single mounting hole according to the present invention.
In fig. 1-12, the various components are numbered as follows:
1-double mounting hole blade; 2, installing a bolt A on the blade with double installation holes; 3-double mounting hole tool apron; 4, installing a bolt B on the blade with double installation holes; 5-pulling the upper plate of the double-mounting-hole tool apron; 6-pulling the plate downwards by the tool apron with double mounting holes; 7-a rotary tillage shaft; 8-installing bolts by using single installing hole cutters; 9-single mounting hole tool apron; 10-single mounting hole cutter shearing bolt; 11-a single mounting hole tool apron upper pulling plate; 12-single mounting hole tool holder pull-down plate; 13-single mounting hole blade; 81-installing a bolt hole on a single-installing-hole tool apron; 101-single mounting hole tool holder shear bolt hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figures 1-12, the rotary tillage shaft in the figures rotates in a counterclockwise direction. The double-mounting-hole tool apron 3 and the single-mounting-hole tool apron 9 have the same basic structure and are formed by two parallel side plates welded on the rotary tillage shaft 7, and an upper pull plate and a lower pull plate which correspond to each other are arranged between the two side plates, namely parts with the reference numbers of 5, 6, 11 and 12 respectively.
The double-mounting-hole blade 1 is inserted between the two side plates of the tool apron and is fixedly mounted by a double-mounting-hole blade mounting bolt A with the reference number 2 and a double-mounting-hole blade mounting bolt B with the reference number 4. As described above, one of the two mounting bolts is selected as the shear bolt having a smaller shear strength, so that twice the shear strength is smaller than the breaking strength of the blade.
The mounting bolt hole 81 of the single mounting hole tool apron 9 can be opened at a far point or a near point away from the rotary tillage shaft, and the shearing bolt hole 101 of the single mounting hole tool apron is opened at the lower right corner of the single mounting hole tool apron at the far point; when the cutter is opened at a close point, the shear bolt hole of the single-mounting-hole cutter holder is opened at the upper left corner of the cutter holder.
The single mounting hole blade 13 and the mounting end can be round-angle heads so as to slide and avoid when the shear bolt is sheared off when meeting stones, and the protection effect is achieved.
The contact between the single mounting hole blade and the shear bolt may have a concave bayonet as shown in fig. 6-7 and 11. Or may be bayonet-free as shown in fig. 12. When no bayonet is arranged, one side or two sides of the two side plates of the tool apron are wider, so that the bolt mounting hole can be conveniently cut.
The shear strength of the mounting bolt 8 of a single mounting hole cutter is greater than that of the mounting bolt 1 of a single mounting hole cutter.
The remaining non-referenced parts and reference numerals are as described above.
The parts are made of steel.
Claims (8)
1. A portable anti-breaking rotary cultivator blade and a blade holder are characterized in that one or two mounting holes are formed in the mounting end of the blade and are mounted on the blade holder in a matched mode with mounting bolts, the side edge of the blade is clamped on a shearing bolt when the mounting hole is single, the blade holder is composed of two parallel side plates welded to a rotary cultivation shaft, mounting holes corresponding to the mounting bolts and the shearing bolt are formed in the two side plates, and the blade is inserted between the two side plates and fixed through the fixing bolts and the shearing bolts; when the two mounting holes are formed, one mounting bolt is a shear bolt.
2. The portable breakage-resistant rotary cultivator blade and holder of claim 1, wherein the mounting holes of the dual mounting hole blade and the single mounting hole blade are both on a center line.
3. The portable anti-breaking rotary cultivator blade and tool post of claim 1, wherein an upper pulling plate and a lower pulling plate are welded between the two side plates of the tool post.
4. The portable anti-breaking rotary cultivator blade and holder as claimed in claim 1, wherein the two side plates of the holder have arc-shaped notches with the same radius as the rotary cultivator shaft.
5. The portable breakage-resistant rotary cultivator blade and holder as claimed in claim 1, wherein the blade mounting end is straight, the single mounting hole is formed at a near point or a far point from the rotary cultivating shaft, and the cutting bolt contacts and blocks the blade at the upper left corner of the mounting hole when the single mounting hole is formed at the near point; when the mounting hole is opened at a far point, the shear bolt contacts and blocks the blade at the lower right corner of the mounting hole.
6. The portable anti-breaking rotary cultivator blade and tool holder of claim 1 or 5, wherein the contact portion of the blade and the shearing bolt is provided with a concave bayonet or no bayonet.
7. The portable breakage-resistant rotary cultivator blade and holder of claim 1, wherein the shear bolt has a shear strength twice less than the blade break strength.
8. The portable breakage resistant rotary cultivator blade and holder of any one of claims 1-5 and 7, wherein the blade mounting end is rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920880763.8U CN210202376U (en) | 2019-06-13 | 2019-06-13 | Portable anti-breaking rotary cultivator blade and blade holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920880763.8U CN210202376U (en) | 2019-06-13 | 2019-06-13 | Portable anti-breaking rotary cultivator blade and blade holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210202376U true CN210202376U (en) | 2020-03-31 |
Family
ID=69931499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920880763.8U Expired - Fee Related CN210202376U (en) | 2019-06-13 | 2019-06-13 | Portable anti-breaking rotary cultivator blade and blade holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210202376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU215876U1 (en) * | 2022-10-05 | 2022-12-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Брянский государственный аграрный университет" | WORKING BODY OF THE TILLING CUTTER |
-
2019
- 2019-06-13 CN CN201920880763.8U patent/CN210202376U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU215876U1 (en) * | 2022-10-05 | 2022-12-30 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Брянский государственный аграрный университет" | WORKING BODY OF THE TILLING CUTTER |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 Termination date: 20210613 |