CN203575154U - Threshing arch tooth for harvester - Google Patents
Threshing arch tooth for harvester Download PDFInfo
- Publication number
- CN203575154U CN203575154U CN201320605789.4U CN201320605789U CN203575154U CN 203575154 U CN203575154 U CN 203575154U CN 201320605789 U CN201320605789 U CN 201320605789U CN 203575154 U CN203575154 U CN 203575154U
- Authority
- CN
- China
- Prior art keywords
- bow tooth
- arch tooth
- mounting seat
- threshing
- arch
- 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.)
- Expired - Fee Related
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- Threshing Machine Elements (AREA)
Abstract
The utility model discloses a threshing arch tooth for a harvester, which belongs to the technical field of harvesters. The threshing arch tooth for the harvester comprises an arch tooth and an installation base which are mutually connected, wherein the arch tooth is composed of an arch tooth head portion and an arch tooth root portion by means of transition connection. The threshing arch tooth for the harvester is characterized in that thread holes are formed in the left and right symmetrical positions of the installation base respectively; the plane of the arch tooth head portion and the plane of the arch tooth root portion are in obtuse-angle transition connection; the plane of the arch tooth root portion and the surface of the installation base are in acute-angle transition connection; the arch tooth and the installation base are made of steel plates; the steel plate extension plane of the arch tooth head portion is vertical to the middle portion of the installation base. The threshing arch tooth for the harvester disclosed by the utility model is simple and reasonable in structure, easy to produce and manufacture, capable of reducing production cost and increasing production efficiency, good in use effect, secure and firm, long in service life, and capable of further increasing threshing efficiency.
Description
Technical field
The utility model relates to the structure of a kind of grain header threshing arch-shaped teeth, belongs to grain header technical field.
Background technology
Along with the modern development of China, the paces of agricultural mechanization are constantly accelerated, also more and more higher to the requirement of farm machinery.Harvester threshing, mainly by the extruding between threshing arch-shaped teeth and screen cloth, rubbing, friction, is taken off grain from the fringe portion of crops.Existing grain header mainly contains two kinds with threshing arch-shaped teeth, one is by bow tooth, mounting seat is interconnected to constitute, when threshing arch-shaped teeth and grain header cylinder are installed, general with bolt, nut is arranged on threshing arch-shaped teeth on cylinder by the installing hole of mounting seat, bolt is twisted to cylinder inside from cylinder outside, bolts and nuts cooperation is connected and fixed threshing arch-shaped teeth and cylinder, along with the threshing arch-shaped teeth increase of service time, the wearing and tearing of bolt head also increase, the corner angle of nut polish gradually, maintenance personal is when to threshing arch-shaped teeth maintain and replace, instrument and bolt head easily skid, be difficult to bolt to turn on, waste time and energy, increased maintenance cost.This bow tooth is directly connected to the middle part of mounting seat, makes base width narrower.Along with the threshing arch-shaped teeth increase of service time, the junction of bow tooth and mounting seat is constantly increased by force intensity like this, easily causes mounting seat fracture, has a strong impact on the service life of threshing arch-shaped teeth, has reduced operating efficiency, has increased use cost.Another bow tooth, owing to using round steel to forge, is subject to structure to limit real work position wear allowance less, and service life is short, lowers operating efficiency, increases use cost.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, and a kind of long service life is provided, time saving and energy saving grain header threshing arch-shaped teeth during installation and maintenance.
Content of the present utility model is achieved through the following technical solutions: a kind of grain header threshing arch-shaped teeth, comprise interconnective bow tooth and mounting seat, described bow tooth is connected and composed by bow tooth head and the transition of bow tooth root, it is characterized in that, a left side for described mounting seat, right symmetric position is respectively equipped with screwed hole, described bow tooth header planes is connected with the transition in obtuse angle of bow tooth root plane, bow tooth root plane is acute angle transition with mounting seat face and is connected, described bow tooth, mounting seat is that steel plate is made, the steel plate of bow tooth head extends the middle part of plane perpendicular to mounting seat.
Described bow tooth, mounting seat are formed in one.
Described mounting seat is arc.
Described bow tooth head is that trapezoidal, trapezoidal drift angle is arc chord angle.
Described bow tooth root is inverted trapezoidal.
The thickness of described steel plate is 4-7mm.
The utility model has changed original installing hole in mounting seat into screwed hole, more convenient when the utility model is installed, and only needs a bolt.Arc mounting seat and grain header cylinder surface fit tightly, and when mounting seat is connected with grain header cylinder, bolt is twisted in cylinder toward cylinder, and coordinate closely with the screwed hole of mounting seat.And bow tooth root is inverted trapezoidal, can not hinder like this bolt to twist toward cylinder is outside from cylinder is inner, the structure of inverted trapezoidal is to the more installing space of bolt.The utility model is after long use, even if wear and tear to some extent in the bottom of bolt, its head is still intact, the corner angle on nut do not have destroyed fall, when instrument is turned on bolt, can not skid, do not affect the maintain and replace of threshing arch-shaped teeth, dismantle convenient.Bow tooth of the present utility model, mounting seat are that steel plate is made, and bow tooth head is connected with mounting seat by bow tooth root, and the steel plate of bow tooth head extends the middle part of plane perpendicular to mounting seat.From the side, bow tooth header planes is connected in obtuse angle with bow tooth root plane, bow tooth root plane is acute angle with mounting seat face and is connected, such structure makes mounting seat of the present utility model have more width, mounting seat compression strength increases, mounting seat is difficult for breaking, fractureing, and bow tooth, mounting seat are one-body molded, make the utility model more solid and reliable.
The utility model is simple and reasonable, manufactures easily, has reduced production cost, has improved production efficiency, and result of use is good, firmly solid, and long service life has further improved threshing efficiency.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is side structure schematic diagram of the present utility model;
Fig. 3 is main TV structure schematic diagram of the present utility model;
In figure: 1 bow tooth, 2 mounting seat, 3 screwed holes, 4 bow tooth heads, 5 bow tooth roots.
Specific embodiment
A kind of grain header threshing arch-shaped teeth, comprises interconnective bow tooth 1 and mounting seat 2.Bow tooth, mounting seat are by folding one-body molded the making of steel plate, and sound construction is stable, survivable.
The left and right symmetric position of mounting seat 2 is respectively equipped with screwed hole 3, and mounting seat is the arc mounting seat that steel plate is made, and arc mounting seat and grain header cylinder surface fit tightly.
Bow tooth head is that trapezoidal, trapezoidal drift angle is arc chord angle, and bow tooth root is inverted trapezoidal.The trapezoidal height of bow tooth head is 3-5 times of the trapezoidal height of bow tooth root, and the trapezoidal upper base length of bow tooth head is less than the trapezoidal length of going to the bottom of bow tooth root.The thickness of above-mentioned steel plate used is 4-7mm.
Claims (6)
1. a grain header threshing arch-shaped teeth, comprise interconnective bow tooth and mounting seat, described bow tooth is connected and composed by bow tooth head and the transition of bow tooth root, it is characterized in that, the left and right symmetric position of described mounting seat is respectively equipped with screwed hole, described bow tooth header planes is connected with the transition in obtuse angle of bow tooth root plane, bow tooth root plane is acute angle transition with mounting seat face and is connected, described bow tooth, mounting seat are that steel plate is made, and the steel plate of bow tooth head extends the middle part of plane perpendicular to mounting seat.
2. a kind of grain header threshing arch-shaped teeth according to claim 1, is characterized in that, described bow tooth, mounting seat are formed in one.
3. a kind of grain header threshing arch-shaped teeth according to claim 1, is characterized in that, described mounting seat is arc.
4. a kind of grain header threshing arch-shaped teeth according to claim 1, is characterized in that, described bow tooth head is that trapezoidal, trapezoidal drift angle is arc chord angle.
5. a kind of grain header threshing arch-shaped teeth according to claim 1, is characterized in that, described bow tooth root is inverted trapezoidal.
6. a kind of grain header threshing arch-shaped teeth according to claim 1, is characterized in that, the thickness of described steel plate is 4-7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605789.4U CN203575154U (en) | 2013-09-29 | 2013-09-29 | Threshing arch tooth for harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605789.4U CN203575154U (en) | 2013-09-29 | 2013-09-29 | Threshing arch tooth for harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203575154U true CN203575154U (en) | 2014-05-07 |
Family
ID=50573151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320605789.4U Expired - Fee Related CN203575154U (en) | 2013-09-29 | 2013-09-29 | Threshing arch tooth for harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203575154U (en) |
-
2013
- 2013-09-29 CN CN201320605789.4U patent/CN203575154U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20140929 |
|
| EXPY | Termination of patent right or utility model |