CN202746534U - Tractor transmission case gear - Google Patents
Tractor transmission case gear Download PDFInfo
- Publication number
- CN202746534U CN202746534U CN 201220374464 CN201220374464U CN202746534U CN 202746534 U CN202746534 U CN 202746534U CN 201220374464 CN201220374464 CN 201220374464 CN 201220374464 U CN201220374464 U CN 201220374464U CN 202746534 U CN202746534 U CN 202746534U
- Authority
- CN
- China
- Prior art keywords
- gear
- transmission case
- tractor transmission
- tooth ring
- tractor
- 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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- General Details Of Gearings (AREA)
Abstract
The utility model discloses a tractor transmission case gear which comprises a gear body (1), an inner tooth ring (11) and an outer tooth ring (12). The inner tooth ring (11) and the outer tooth ring (12) are arranged on the gear body (1). The tractor transmission case gear is characterized in that the gear body (1), the inner tooth ring (11) and the outer tooth ring (12) are all made of QT1200-1-grade ductile iron materials. The tractor transmission case gear effectively solves the problems that an existing tractor transmission case gear made of 20 crmnti-grade alloy steel not only increases production cost of enterprises producing tractors, but also increases utilization cost of users. The tractor transmission case gear is low in manufacture cost and facilitates popularization and utilization.
Description
Technical field
The utility model relates to the speed-changing gear box equipment technical field, is specifically related to a kind of gear box of tractor gear.
Background technique
The major impetus machine that tractor is used as agricultural production can draw in actual use that different farm implements are ploughed, sowed, harvesting etc.At present, the gear box of tractor gear that China tractor manufacturing enterprise produces, the alloy steel material that the common employing trade mark is 20crmnti is as producing raw material, but it is higher to use alloyed steel 20crmnti material to produce gear box of tractor gear cost, China is as large agricultural country, the utilization rate of tractor is very high, uses alloyed steel 20crmnti material not only to increase the cost of production of tractor manufacturing enterprise, and has increased China peasant's user cost.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of gear box of tractor gear, the alloyed steel that it is 20crmnti that this technological scheme efficiently solves the existing gear box of tractor gear employing trade mark is as raw material production, not only increased the cost of production of tractor manufacturing enterprise, but also having increased user's user cost, the utility model fabricating cost is cheap, be convenient to promote the use of.
The utility model is achieved through the following technical solutions:
A kind of gear box of tractor gear, comprise upper ring gear (11), the external toothing (12) that arranges of gear body (1) and gear body (1), it is characterized in that: described gear body (1), ring gear (11), external toothing (12) are that the ductile cast iron material of QT1200-1 is made by the trade mark.
The utility model compared with prior art, have following obvious advantage: the utility model employing trade mark is that the ductile cast iron material of QT1200-1 not only can be saved 20 percent cost of production as the production material of the gearbox gear of producing tractors, and the ductile cast iron material of QT1200-1 has higher intensity, toughness and plasticity, remedied to a certain extent the shortcoming of 20crmnti alloyed steel.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As Fig. 1, shown in, the utility model comprises on gear body 1 and the gear body 1 ring gear 11, the external toothing 12 that arranges, gear body 1, ring gear 11, external toothing 12 are that the ductile cast iron material of QT1200-1 is made by the trade mark.
The utility model does not relate to partly all, and the prior art that maybe can adopt same as the prior art is realized.
Claims (1)
1. gear box of tractor gear, comprise upper ring gear (11), the external toothing (12) that arranges of gear body (1) and gear body (1), it is characterized in that: described gear body (1), ring gear (11), external toothing (12) are that the ductile cast iron material of QT1200-1 is made by the trade mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374464 CN202746534U (en) | 2012-07-31 | 2012-07-31 | Tractor transmission case gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374464 CN202746534U (en) | 2012-07-31 | 2012-07-31 | Tractor transmission case gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746534U true CN202746534U (en) | 2013-02-20 |
Family
ID=47705933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220374464 Expired - Fee Related CN202746534U (en) | 2012-07-31 | 2012-07-31 | Tractor transmission case gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746534U (en) |
-
2012
- 2012-07-31 CN CN 201220374464 patent/CN202746534U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130731 |