CN2073206U - Blade for making furrows - Google Patents
Blade for making furrows Download PDFInfo
- Publication number
- CN2073206U CN2073206U CN 90218878 CN90218878U CN2073206U CN 2073206 U CN2073206 U CN 2073206U CN 90218878 CN90218878 CN 90218878 CN 90218878 U CN90218878 U CN 90218878U CN 2073206 U CN2073206 U CN 2073206U
- Authority
- CN
- China
- Prior art keywords
- blade
- making furrows
- utility
- model
- cutting edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Landscapes
- Soil Working Implements (AREA)
Abstract
The utility model relates to a bend blade for making furrows, which is the improvement of the original blade for making furrows. The utility model comprises a blade body and a connecting handle; the blade body is provided with middle cutting edge and flank cutting edge; the flank cutting edge is symmetrically bent or asymmetrically bent along the symmetrical center plane of the blade, and forms a minor alpha angle with a furrow bank. Compared with the original structure, the utility model has the advantages of non-complication, easy fabrication, reducing the earth cutting resistance when making furrows, easy to throw earth, and long service life of the blade.
Description
The utility model relates to the ditching knife that uses on the agricultural big cutterhead ditching machine.
Ditching knife of the prior art, both sides blade and middle blade are in same plane, and this ditching knife is in the trench digging process, it is big to cut soil resistance, the frictional contact surface of side direction blade and furrow bank is little, and the easy abrasion of knife has influenced the trench digging quality, simultaneously, throwing soil nature can be relatively poor, the higher earth of moisture content particularly, more difficult dishing out, time soil that causes is many, and bottom of trench stays soil also many.
The purpose of this utility model is exactly that a kind of strong Blade for making furrows of throwing native ability that has is provided in order to overcome the deficiencies in the prior art, stays soil to reduce bottom of trench, improves the trench digging quality, and can reduce and cut soil resistance, improves the knife life-span.
Description of drawings.
Fig. 1 is the structural representation of the utility model both sides blade symmetry bending.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the structural representation of the asymmetric bending of both sides blade.
Fig. 4 is the structural representation of the asymmetric bending of both sides blade.
The utility model Blade for making furrows is the improvement of former ditching knife, and its embodiment is provided by Fig. 1-4, is made up of cutter hub (1) and connection handle (2).Cutter hub (1) has middle blade and side blade (3), have the symmetrical centre face bending of a side blade (3) at least to knife, make this side blade (3) and furrow bank form less α angle, the utility model can symmetrical bendings of two side blades (3) (seeing Fig. 1-2) or asymmetric bending (seeing Fig. 3-4), blade front-back angle β=5 °～50 °.Connection handle (2) has two holes of fixedlying connected with big cutterhead.The suitable chamfering in cutting edge place of middle blade and both sides blade (3) is convenient to incision.
Arrive cutting force size and knife life-span with the magnitude relationship of furrow bank angle α, the α angle is little, and it is little to cut soil resistance, and cutting force is also little, and earth is easily thrown.Otherwise the α angle is big, and it is big to cut soil resistance, and cutting force is also big, and earth is difficult to be thrown, and influences the knife life-span, and therefore, the α angle should be as far as possible little, approximate be advisable parallel with furrow bank.
The cutter hub of Blade for making furrows (1) can integral body forge moulding with connection handle (2), or split is formed by connecting.
Ditching knife is when work, drive the do incision motion of advancing by cutterhead, a side tool sword of cutting soil earlier is with less cutting angle incision furrow bank, the earth that downcuts moves to middle knife face, be detained at opposite side side edge place then and form walk, along with the rotation of the big cutterhead of ditching machine, earth is dished out with bigger centrifugal force.
This Blade for making furrows is simple in structure, is convenient to make, and it is little to cut soil resistance, and throwing soil nature can be good, and returning of causing is native few, and bottom of trench stays soil few.
Claims (4)
1, a kind of Blade for making furrows is made up of cutter hub with blade (1) and connection handle (2), it is characterized in that this cutter hub (1) has the symmetrical centre face bending of a side blade (3) to knife at least, makes the back of blade and furrow bank form a less angle [alpha].
2, Blade for making furrows as claimed in claim 1 is characterized in that both sides blade (3) is to the bending of symmetrical centre face.
3, Blade for making furrows as claimed in claim 1 is characterized in that both sides blade (3) is to the asymmetric bending of symmetrical centre face.
4,, it is characterized in that the front-back angle β of both sides blade (3)=5 °～50 ° as claim 1 or 2 or 3 described Blade for making furrows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90218878 CN2073206U (en) | 1990-08-29 | 1990-08-29 | Blade for making furrows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90218878 CN2073206U (en) | 1990-08-29 | 1990-08-29 | Blade for making furrows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2073206U true CN2073206U (en) | 1991-03-20 |
Family
ID=4897627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90218878 Withdrawn CN2073206U (en) | 1990-08-29 | 1990-08-29 | Blade for making furrows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2073206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104945A (en) * | 2018-10-25 | 2019-01-01 | 孙雪芹 | A kind of manufacture craft of ditching-fertilizing all-in-one machine pan soil cutter |
| CN114586505A (en) * | 2022-04-01 | 2022-06-07 | 西南大学 | High-efficient ditching system of portable small-size ditching machine |
-
1990
- 1990-08-29 CN CN 90218878 patent/CN2073206U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104945A (en) * | 2018-10-25 | 2019-01-01 | 孙雪芹 | A kind of manufacture craft of ditching-fertilizing all-in-one machine pan soil cutter |
| CN109104945B (en) * | 2018-10-25 | 2023-12-12 | 孙雪芹 | Manufacturing process of hard soil cutter for ditching and fertilizing integrated machine |
| CN114586505A (en) * | 2022-04-01 | 2022-06-07 | 西南大学 | High-efficient ditching system of portable small-size ditching machine |
| CN114586505B (en) * | 2022-04-01 | 2023-10-20 | 西南大学 | Efficient ditching system of portable small ditcher |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2446564C (en) | Roofing utility blade for roofing knife | |
| US5094065A (en) | Mulching rotary lawn mower blade | |
| CA2265084A1 (en) | Improved roofing tool | |
| CN2073206U (en) | Blade for making furrows | |
| US3913226A (en) | Citrus cutter | |
| CN2253562Y (en) | Vertical rotary cultivator | |
| CN213888472U (en) | Novel multifunctional saw blade | |
| EP0220362B1 (en) | Knives | |
| CN2475469Y (en) | Multifunctional cutter head | |
| CN220133566U (en) | Electric hammer shovel blade | |
| CN214134284U (en) | Multifunctional saw blade | |
| CN110366965B (en) | Blade and straw returning machine using same | |
| CN220897149U (en) | Orchard ditching knife | |
| CN219380728U (en) | Durian fruit opening knife | |
| CN214916802U (en) | Timber crushed aggregates sword | |
| CN219938879U (en) | Rotary blade structure | |
| CN208572757U (en) | Grass trimmer double-edged razor blade | |
| CN210677158U (en) | Heat dissipation wear-resisting saw bit | |
| CN213187984U (en) | Special device for fruit and vegetable peeling processing equipment | |
| CN2160188Y (en) | Reverse cutting rotary tilling blade | |
| CN217722114U (en) | Grafting scissors | |
| JPH0438666Y2 (en) | ||
| CN208512729U (en) | A kind of toolbox of kitchen waste treater | |
| CN208662613U (en) | W type alloy cutting tip | |
| CN210190025U (en) | Reciprocating cutting superfine grooving saw blade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |