CN102265739A - Blade of three-surface tooth cutter - Google Patents
Blade of three-surface tooth cutter Download PDFInfo
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- CN102265739A CN102265739A CN2011101642168A CN201110164216A CN102265739A CN 102265739 A CN102265739 A CN 102265739A CN 2011101642168 A CN2011101642168 A CN 2011101642168A CN 201110164216 A CN201110164216 A CN 201110164216A CN 102265739 A CN102265739 A CN 102265739A
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- blade
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Abstract
The invention discloses a blade of a three-surface tooth cutter. Cutting edges at two sides of the blade and cutting edges on the top of the blade are tooth-shaped cutting edges. The tooth-shaped cutting edges of the blade are isobathic tooth grain trapezoidal section tooth-shaped cutting edges. Main structural parameters of the blade are as follows: the cutting angle alpha of the blade is 20-24 DEG; the top width b1 of the blade is 18-20 mm; the blade surface angle gamma of the blade is 34-38 DEG; the tooth tip length s of the tooth-shaped cutting edge of the blade is 1.0-1.5 mm; the tooth distance t between the cutting edges of the blade is 2.0-2.8 mm; the tooth grain angle theta of the cutting edge of the blade is 20-24 DEG; and the tooth tip angle beta1+beta2 of the cutting edge of the blade is 50-60 DEG. The blade disclosed by the invention is designed according to the characteristics of sugarcane stems, so that the blade can satisfy use requirements for harvesting sugarcanes. The blade is used for cutting, thus, an effect of flat sugarcane notch surface without fracturing phenomenon (low perennial root head breaking rate) can be achieved.
Description
Technical field
The present invention relates to the agricultural machinery technology field, specifically a kind of three tooth cutter blades.
Background technology
Whether the design of reciprocating type cane harvester cutter blade structural parameters is reasonable, is directly connected to the result of use of reciprocating type cane harvester cutter.Thick height of cane stalk stalk and rigidity are big, and it is thin short and rigidity is little to be different from rice and wheat crops stem stalk, and the research report to the reciprocating type cutting blade of this type of thick high stem stalk crop is very few both at home and abroad.Therefore, reciprocating type cane harvester cutter blade is done deep research, have versatility and practicality gathering in the thick high stem stalk crop of similar sugarcane.
Reciprocating type cane harvester adopts two up and down moving-blade cutter structures, knife section is the main cutting member of cutter, determining of its motion mode, form parameter and manufacturing process, cutting effect, consumed power of whole machine and blade life all there is bigger influence, designed for this reason knife section should satisfy the requirement that motion is reliable, shape is reasonable, strength and stiffness are of fine quality, cutting speed is chosen in effective cutting high-velocity section simultaneously, and wherein, form parameter is the most key.
At present, the grain header cutter blade of using at thick high stem stalk crop harvestings such as sugarcanes not is only at the grain header cutter blades of thin short stem stalk crops such as paddy rice, wheat and herbage.Compile at standard GB/T1209.1-5 " agricultural machinery cutter " and JB/T7862.1-4 " agricultural machinery cutter " and China Academy of Agriculture Mechanization that " design of relevant agricultural machinery cutter in the Agricultural Machinery Design handbook is also only at grain header cutter blade standard and the designing requirement of thin short stem stalk crops such as paddy rice, wheat and herbage.Not grain header cutter blade standard and the designing requirement of using at thick high stem stalk crop harvestings such as sugarcanes.
Summary of the invention
The purpose of this invention is to provide a kind of reciprocating type cane harvester cutter blade that is used for, this blade can be used in the sugarcane harvesting, also can be used in the harvesting of thick high stem stalk class crops such as hemp stalk, cornstalk, sorghum stalk.
The present invention is according to the characteristic of the thick high stem stalk crop of Yunnan Province sugarcane and the requirement of the harvesting of burying, the pertinent regulations of normative reference GB/T1209.1-5 " agricultural machinery cutter " and JB/T7862.1-4 " agricultural machinery cutter ", compile " the designing requirement of relevant grain header cutter blade in the Agricultural Machinery Design handbook with reference to China Academy of Agriculture Mechanization, autonomous innovation has designed reciprocating type cane harvester cutter blade, has proposed novel shape and parameter.
Sugarcane is the tall and big and thick herbaceos perennial of grass family, and the cane stalk stalk is a solid, as bamboo joint is arranged regularly, and every joint has a tooth.The ripe sugarcane of pressing sugar in Yunnan Province highly is 2.0～3.0m generally, and stem stalk diameter is generally at 20～45mm.
The characteristics design that the present invention is directed to sugarcane goes out a kind of three blades of wearing toothed cutting edge.Adopt the cutting edge of being with profile of tooth at blade both sides cutting edge, make when moving knife moves back and forth up and down and can clamp and cut off sugarcane; Also adopt the cutting edge of band profile of tooth at the top of blade, making up and down, moving knife also cuts simultaneously to sugarcane when moving back and forth.
Cutter blade of the present invention is a kind of three to wear the blade of toothed cutting edge.Toothed cutting edge has all been adopted at top at blade both sides cutting edge and blade, and the blade land such as is at dark groove trapezoidal cross-section land, and the main structure parameters of blade is as follows:
Blade cuts angle α=20 °～24 °;
Blade tip width b
1=18～20mm;
Blade facets angle λ=34 °～38 °;
Long s=1.0～the 1.5mm of blade land crown;
Blade cutting edge tooth pitch t=2.0～2.8mm;
Blade cutting edge groove angle θ=20 °～24 °;
Blade cutting edge tooth angle β
1+ β
2=50 °～60 °.
Each parameter of the present invention determines that principle is as follows:
1, the cutting angle α of cutter blade
Because of the size that resistance is cut in the big or small directly influence of cutting angle, cutting angle is little, and the cutting resistance is big; Cutting angle increases, and the cutting resistance reduces, but can cause that crop stem holds instability in last bottom knife therebetween, cause cut unreliable.The cutting angle of the present invention design is that α=20 °～24 ° are comparatively suitable, also can take into account the harvesting to other crop stem.
2, blade tip width b
1
The blade tip width can not be too narrow, the too narrow blade tip intensity that influences, and the present invention designs blade tip width b
1Be 18～20mm.
3, blade cutting edge sword face angle λ
Sword face angle is bigger to cutting resistance and influence in service life, and when sword face angle was excessive, the cutting resistance increased; When sword face angle is too small, the cutting edge quick abrasion, and easily burst apart, it is unreliable to work, and it is 34 °～38 ° that the present invention has designed sword face angle λ.
4, blade bottom width B is more than or equal to 60mm, and the blade bottom width can not be too narrow, can not be too wide.The too narrow blade strength that influences, the too wide blade overall height H that makes is too high and influence the adjacent knife blades pitch arrangement.
5, the requirement for guaranteeing that blade can be cut off the cane stalk stalk in a reciprocating stroke, a determining deviation should be left to cane stalk stalk top, h in the blade cutting edge upper end
1More than or equal to 2mm.
6, the sugarcane of the thick stem stalk of harvesting, blade blade height should satisfy the requirement that can cut off the cane stalk stalk in a reciprocating stroke, gets h=(1～2) D, and D is thick stem stalk diameter (being the sugarcane diameter), 96% sugarcane root diameter (RD) is generally D=20～40mm, h=(1～2) D=40～80(mm)
7, the selection of blade thickness δ directly influences the strength and stiffness of blade, is to guarantee to cut one of important parameter smoothly.Blade is except that finishing cutting stem, and operation is sheared with stone, sand and other wild plant often, requires blade to have certain thickness to guarantee the strength and stiffness that it is enough.Take all factors into consideration its manufacturing cost and the blade opposing destructions such as distortion that foreign matter caused, δ=4～5mm.
Blade of the present invention can be used in the sugarcane harvesting, also can be used in hemp stalk, cornstalk, the harvesting of thick high stem stalk class crop such as sorghum stalk.Blade cuts angle α has determined that the power of cutting cane stalk stalk is less, and blade facets angle λ has reduced the resistance of blade incision sugarcane, cutting edge tooth angle β
1+ β
2Guarantee that the cane stalk stalk does not slide between blade.The design of all the other parameters all is to carry out according to the characteristic of sugarcane bar, has made it to satisfy the instructions for use of sugarcane harvesting.Blade cuts of the present invention has reached the effect of smooth, the no splitting phenomenon of sugarcane cut surface (the perennial root head breaking rate is low).
Description of drawings
Fig. 1 is three tooth cutter blade structural representations of the present invention.
Fig. 2 is the A-A cutaway view among Fig. 1.
Fig. 3 is the rearview of Fig. 1.
Among the figure: α-blade cuts angle; b
1-blade tip width; B-blade bottom width; h
1-blade cutting edge upper end is to cane stalk stalk top spacing; h
2-blade cutting edge lower end is to blade base distance; H-blade blade height; T-cutting edge tooth pitch; δ-blade thickness; λ-blade facets angle; S-land crown is long; θ-cutting edge groove angle; (β
1+ β
2)-cutting edge tooth angle; H-blade total height.
Embodiment
As shown in Figure 1, three tooth cutter blades of the present invention are a kind of three to wear the blade of toothed cutting edge.Toothed cutting edge has all been adopted at top at blade both sides cutting edge and blade, and the blade land such as is at dark groove trapezoidal cross-section land, and is known: cane stalk stalk diameter D=20mm; The main structure parameters of blade is determined as follows:
Blade cuts angle α=21 °;
Blade tip width b
1=19;
Blade facets angle λ=35 ° ± 1 °;
Long s=1.3 ± the 0.1mm of blade land crown;
Blade cutting edge tooth pitch t=2.5mm;
Blade cutting edge groove angle θ=21 °;
Blade cutting edge tooth angle β
1+ β
2=50 ° ± 2 °.
Other CALCULATION OF PARAMETERS is with definite:
Blade bottom width B=70; The blade cutting edge upper end is to cane stalk stalk top spacing h
1=2mm; The blade cutting edge lower end is to blade base distance h
2=23mm, blade thickness δ=4mm.
Blade blade height is h, can calculate according to α and B.
Blade height H is: H=h+h
2(mm).
After insert design is finished, when using on cutter, composite blade about two back-to-back being overlapped into of blade is carried out the installation of blade.
Embodiment 2:
Known: cane stalk stalk diameter D=40mm.The main structure parameters of blade is determined as follows:
Blade cuts angle α=23 °;
Blade tip width b
1=20;
Blade facets angle λ=36 ° ± 1 °;
Long s=1.1 ± the 0.1mm of blade land crown;
Blade cutting edge tooth pitch t=2.7mm;
Blade cutting edge groove angle θ=23 °;
Blade cutting edge tooth angle β
1+ β
2=56 ° ± 2 °.
Other CALCULATION OF PARAMETERS is identical with embodiment 1 with definite method.
Claims (5)
1. three tooth cutter blades is characterized in that all having adopted toothed cutting edge at the top of blade both sides cutting edge and blade, and the blade land such as is at dark groove trapezoidal cross-section land, and the main structure parameters of blade is as follows:
Blade cuts angle α=20 °～24 °;
Blade tip width b
1=18～20mm;
Blade facets angle λ=34 °～38 °;
Long s=1.0～the 1.5mm of blade land crown;
Blade cutting edge tooth pitch t=2.0～2.8mm;
Blade cutting edge groove angle θ=20 °～24 °;
Blade cutting edge tooth angle β
1+ β
2=50 °～60 °.
2. three tooth cutter blades according to claim 1 is characterized in that blade bottom width B is more than or equal to 60mm.
3. three tooth cutter blades according to claim 1 is characterized in that the blade cutting edge upper end is to cane stalk stalk top spacing h
1Be not less than 2mm.
4. three tooth cutter blades according to claim 1 is characterized in that blade blade height h=(1～2) D, and D is the sugarcane diameter.
5. three tooth cutter blades according to claim 1 is characterized in that blade thickness δ=4～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101642168A CN102265739A (en) | 2011-06-19 | 2011-06-19 | Blade of three-surface tooth cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101642168A CN102265739A (en) | 2011-06-19 | 2011-06-19 | Blade of three-surface tooth cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102265739A true CN102265739A (en) | 2011-12-07 |
Family
ID=45048347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101642168A Pending CN102265739A (en) | 2011-06-19 | 2011-06-19 | Blade of three-surface tooth cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102265739A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948296A (en) * | 2012-11-20 | 2013-03-06 | 无锡康柏斯机械科技有限公司 | Harvester blade suitable for harvesting crops with strong toughness |
| CN104097040A (en) * | 2014-06-30 | 2014-10-15 | 柳州市汉森机械制造有限公司 | Rice harvester blade and manufacturing method |
| CN104982138A (en) * | 2015-06-05 | 2015-10-21 | 农业部南京农业机械化研究所 | Reed harvester bionic cutting blade and manufacturing method thereof |
| US20190364726A1 (en) * | 2018-06-04 | 2019-12-05 | Deere & Company | Crop cutting knives for agricultural combine harvester |
| US10648051B2 (en) | 2015-04-24 | 2020-05-12 | Kondex Corporation | Reciprocating cutting blade with cladding |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US513834A (en) * | 1894-01-30 | Knife or cutter for mowers | ||
| GB2096444A (en) * | 1981-04-13 | 1982-10-20 | Schumacher Gustav | Reciprocating cutter blade |
| US6857255B1 (en) * | 2002-05-16 | 2005-02-22 | Fisher-Barton Llc | Reciprocating cutting blade having laser-hardened cutting edges and a method for making the same with a laser |
| CN2917235Y (en) * | 2006-03-15 | 2007-07-04 | 柳州市汉森机械制造有限公司 | Cutter of sugarcane harvester |
| US20080000210A1 (en) * | 2006-07-03 | 2008-01-03 | Alamo Group, Inc. | Reciprocating breakaway knife |
-
2011
- 2011-06-19 CN CN2011101642168A patent/CN102265739A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US513834A (en) * | 1894-01-30 | Knife or cutter for mowers | ||
| GB2096444A (en) * | 1981-04-13 | 1982-10-20 | Schumacher Gustav | Reciprocating cutter blade |
| US6857255B1 (en) * | 2002-05-16 | 2005-02-22 | Fisher-Barton Llc | Reciprocating cutting blade having laser-hardened cutting edges and a method for making the same with a laser |
| CN2917235Y (en) * | 2006-03-15 | 2007-07-04 | 柳州市汉森机械制造有限公司 | Cutter of sugarcane harvester |
| US20080000210A1 (en) * | 2006-07-03 | 2008-01-03 | Alamo Group, Inc. | Reciprocating breakaway knife |
Non-Patent Citations (1)
| Title |
|---|
| 熊永坚: "全喂入联合收割机双动刀切割器设计", 《农机化研究》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948296A (en) * | 2012-11-20 | 2013-03-06 | 无锡康柏斯机械科技有限公司 | Harvester blade suitable for harvesting crops with strong toughness |
| CN104097040A (en) * | 2014-06-30 | 2014-10-15 | 柳州市汉森机械制造有限公司 | Rice harvester blade and manufacturing method |
| US10648051B2 (en) | 2015-04-24 | 2020-05-12 | Kondex Corporation | Reciprocating cutting blade with cladding |
| CN104982138A (en) * | 2015-06-05 | 2015-10-21 | 农业部南京农业机械化研究所 | Reed harvester bionic cutting blade and manufacturing method thereof |
| US20190364726A1 (en) * | 2018-06-04 | 2019-12-05 | Deere & Company | Crop cutting knives for agricultural combine harvester |
| US10765060B2 (en) * | 2018-06-04 | 2020-09-08 | Deere & Company | Crop cutting knives for agricultural combine harvester |
| US11744173B2 (en) | 2018-06-04 | 2023-09-05 | Deere & Company | Crop cutting knives for agricultural combine harvester |
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| PB01 | Publication | ||
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Application publication date: 20111207 |