CN102606716A - Transfer case of high-power tractor - Google Patents
Transfer case of high-power tractor Download PDFInfo
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- CN102606716A CN102606716A CN2012100856643A CN201210085664A CN102606716A CN 102606716 A CN102606716 A CN 102606716A CN 2012100856643 A CN2012100856643 A CN 2012100856643A CN 201210085664 A CN201210085664 A CN 201210085664A CN 102606716 A CN102606716 A CN 102606716A
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Abstract
The invention discloses a transfer case of a high-power tractor, which belongs to the technical field of transmission parts of agricultural machinery. A high-gear input gear, a low-gear input gear and a reverse-gear input gear are hollowly sleeved on an input shaft, a high-low gear shifting gear block is fixed onto the input shaft by a spline, a high-gear output gear, a low-gear output gear and a reverse-gear output gear are fixed onto a rear axle output shaft , the high-gear output gear and the low-gear output gear are respectively meshed with the high-gear input gear and the low-gear input gear, a front axle output gear is hollowly sleeved on a front axle output shaft and meshed with the high-gear output gear, and a reverse-gear idle gear is supported on a shell component by a reverse-gear idle gear axle and is meshed with the reverse-gear output gear on the rear axle output shaft while being meshed with the reverses-gear input gear. The transfer case of the high-power tractor is compact in structure, multiple in gear shifts, large in speed ratio range, fine in meshing performance, low in price and convenient in maintenance, and can match with engines with the horsepower ranging from 220 to 280.
Description
Technical field
The present invention discloses a kind of big-power tractor transfer case, belongs to agricultural machinery driving component technical field.
Background technique
Present domestic separate assembling big-power tractor stopping brake is installed on the speed changer usually, but along with engine horsepower increases, receives the restriction of speed changer complete machine structure and tractor bulk, is difficult to satisfy the big-power tractor growth requirement.
Summary of the invention
The object of the invention is exactly in order to overcome the deficiency of above-mentioned existence; And a kind of compact structure is provided, gear is many, ratio coverage is big, meshing performance is good, low price, easy to maintenance, can satisfy the big-power tractor transfer case that is complementary with 220～280 horsepower engines.
To achieve these goals, the technological scheme that the present invention adopted is:
A kind of big-power tractor transfer case comprises the input shaft, back axle output shaft, the propons output shaft that from top to bottom are installed in successively in the frame set; Be set with high-grade input gear, low-grade input gear, reverse gear input gear through needle bearing on the input shaft, be fixed with high and low shift gear shift toothholder through spline on the input shaft; Be fixed with high-grade output gear, low-grade output gear, reverse gear output gear on the back axle output shaft, and high-grade output gear, low-grade output gear are meshed with top grade input gear, low-grade input gear respectively; Be set with the propons output gear through needle bearing on the propons output shaft, the propons output gear is meshed with high-grade output gear; Reverse idler gear is bearing on the frame set through the reverse idler gear axle, and reverse idler gear and reverse gear input gear is when being meshed, and is meshed with reverse gear output gear on the back axle output shaft.
As the further setting of such scheme, described input shaft and back axle output shaft all are bearing on the frame set through roller bearing.
Described propons output shaft is bearing on the frame set through tapered roller bearing.
Described gear engagement is the helical gear engagement.
Big-power tractor transfer case of the present invention, high and low shelves, the empty cover of reverse gear on the input shaft, the high and low shift toothholder is fixed on the input shaft with spline, and reverse gear toothholder and input shaft are designed to integral body; Simultaneously, increase by an idle pulley, realize car-backing function at outlet side.Output shaft cogs hot jacket on axle, respectively with input shaft on gear, idle pulley be meshed, in collar shift mechanism effect down, realize the high and low shelves of transfer case, reverse gear, and before and after bridge export transmission system.The break erection support is fixed on the frame set, supplies break usefulness is installed, and brake disc is fixed on the output shaft through spline.High and low shelves power is directly exported; Reverse gear power is realized power output after changing through idle pulley; The propons output gear directly meshes with high-grade output gear, realizes the output of propons power.
The present invention is the stationary axle drive mechanism, creatively places transfer case to tractor reverse gear; Have two forward gearss, a reverse gear function, can realize forward and backward bridge output; Forward and backward bridge output rotation direction is opposite; Adopt full helical teeth engagement transferring power; High and low shelves and reverse gear adopt the transmission of engagement cover; Parking brake is installed on the back axle output shaft.
Bearing capacity is big, reasonable, the handiness of speed ratio coupling because of it has for big-power tractor transfer case of the present invention, can realize advantages such as large tractor power train multiple gear ratios, can satisfy the coupling demand of large tractor 220～280 horsepower engines preferably.
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Description of drawings
Fig. 1 is a structural representation of the present invention;
The structural representation that Fig. 2 is meshed with reverse idler gear for reverse gear input gear of the present invention.
Embodiment
Like Fig. 1, shown in Figure 2, big-power tractor transfer case of the present invention comprises the input shaft 1, back axle output shaft 10, the propons output shaft 17 that from top to bottom are installed in successively in the frame set 9.Input shaft 1 is bearing on the frame set 9 through roller bearing 2,3, high-grade input gear 4, low-grade input gear 5, reverse gear input gear 6 through needle bearing respectively sky be enclosed within on the input shaft 1; High-grade input gear 4, low-grade input gear 5,6 of gears of reverse gear input are equipped with collar shift mechanism respectively, and the spline that high and low shift gear shift toothholder 16 passes through is fixed on the input shaft 1, and reverse gear toothholder and input shaft 1 are made of one.Back axle output shaft 10 is bearing on the frame set 9 through roller bearing 11,12; High-grade output gear 13, low-grade output gear 14, reverse gear output gear 15 are installed on the back axle output shaft 10 through interference fit, high-grade output gear 13, low-grade output gear 14 respectively with input shaft 1 on top grade input gear 4, the 5 corresponding engagements of low-grade input gear; Reverse idler gear axle 20 directly is bearing on the frame set 9, and reverse idler gear 21 is enclosed within on the reverse idler gear axle 20 through the needle bearing sky, with input shaft 1 on 6 engagements of reverse gear input gear in, be meshed with reverse gear output gear 15 on the back axle output shaft 10.
Propons output shaft 17 is bearing on the frame set 9 through tapered roller bearing 18, and propons output gear 19 is enclosed within on the propons output shaft 17 through the needle bearing sky, is meshed with high-grade output gear 13 on the back axle output shaft 10.
Under the choosing of top cover assembly 7, shift lever effect; Reverse shift fork system in the last cap assembly 8 begins to move forward and backward; The tooth cover that drives in the collar shift mechanism between high and low shelves or the reverse gear moves forward and backward; Combine with the spline on the corresponding shifting gear, the free gear of a certain gear on the input shaft 1 and input shaft 1 are combined into one, realize the power output of this gear.(example: when the reach of reverse gear tooth cover engaged with reverse gear input gear 6 upper splines, power was through input shaft 1 to reverse gear input gear 6, to reverse idler gear 21, to reverse gear output gear 15, to back axle output shaft 10, after bead is exported to transmission shaft.）
During propons output, tooth cover 22 is under the effect of operating mechanism, and reach combines with propons output gear 19, and propons output gear 19 and propons output shaft 17 are combined into one, and realizes the output of propons power.
Stopping brake is realized on transfer case; Break erection support 23 is fixed on the frame set 9, and break usefulness supply to be installed, and brake disc 24 is fixed on the back axle output shaft 10 through spline, and brake disc 24 is positioned at the input end of transfer case, satisfies braking function.
The foregoing description only is used to the inventive concept of the present invention of explaining, but not to the qualification of rights protection of the present invention, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should fall into protection scope of the present invention.
Claims (4)
1. a big-power tractor transfer case is characterized in that: comprise the input shaft, back axle output shaft, the propons output shaft that from top to bottom are installed in successively in the frame set; Be set with high-grade input gear, low-grade input gear, reverse gear input gear through needle bearing on the input shaft, be fixed with high and low shift gear shift toothholder through spline on the input shaft; Be fixed with high-grade output gear, low-grade output gear, reverse gear output gear on the back axle output shaft, and high-grade output gear, low-grade output gear are meshed with top grade input gear, low-grade input gear respectively; Be set with the propons output gear through needle bearing on the propons output shaft, the propons output gear is meshed with high-grade output gear; Reverse idler gear is bearing on the frame set through the reverse idler gear axle, and reverse idler gear and reverse gear input gear is when being meshed, and is meshed with reverse gear output gear on the back axle output shaft.
2. big-power tractor transfer case as claimed in claim 1 is characterized in that: parking brake erection support and brake disc are installed on the back axle output shaft, and are positioned at the input end of transfer case.
3. big-power tractor transfer case as claimed in claim 1 is characterized in that: all gear pair all adopts the helical gear engagement driving.
4. big-power tractor transfer case as claimed in claim 1 is characterized in that: front and back bridge rotation direction is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100856643A CN102606716A (en) | 2012-03-28 | 2012-03-28 | Transfer case of high-power tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100856643A CN102606716A (en) | 2012-03-28 | 2012-03-28 | Transfer case of high-power tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102606716A true CN102606716A (en) | 2012-07-25 |
Family
ID=46524365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100856643A Pending CN102606716A (en) | 2012-03-28 | 2012-03-28 | Transfer case of high-power tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102606716A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051056A (en) * | 2016-07-27 | 2016-10-26 | 中科合肥微小型燃气轮机研究院有限责任公司 | Three-side output speed reduction gear train for gas turbine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4542801A (en) * | 1981-12-04 | 1985-09-24 | Caterpillar Tractor Co. | Vehicle transfer gear mechanism |
| US4855913A (en) * | 1987-05-29 | 1989-08-08 | J. I. Case Company | Electronic control system for powershift transmission |
| CN201090686Y (en) * | 2007-10-26 | 2008-07-23 | 浙江长泰机械有限公司 | Large tractor transfer case |
| CN201187554Y (en) * | 2008-03-17 | 2009-01-28 | 安徽长江农业机械有限责任公司 | Multifunctional gear box |
| CN100480540C (en) * | 2007-05-14 | 2009-04-22 | 贵州凯星液力传动机械有限公司 | Commutation mechanism for vehicle gear box |
| CN202628957U (en) * | 2012-03-28 | 2012-12-26 | 浙江长泰机械有限公司 | High-power tractor transfer case |
-
2012
- 2012-03-28 CN CN2012100856643A patent/CN102606716A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4542801A (en) * | 1981-12-04 | 1985-09-24 | Caterpillar Tractor Co. | Vehicle transfer gear mechanism |
| US4855913A (en) * | 1987-05-29 | 1989-08-08 | J. I. Case Company | Electronic control system for powershift transmission |
| CN100480540C (en) * | 2007-05-14 | 2009-04-22 | 贵州凯星液力传动机械有限公司 | Commutation mechanism for vehicle gear box |
| CN201090686Y (en) * | 2007-10-26 | 2008-07-23 | 浙江长泰机械有限公司 | Large tractor transfer case |
| CN201187554Y (en) * | 2008-03-17 | 2009-01-28 | 安徽长江农业机械有限责任公司 | Multifunctional gear box |
| CN202628957U (en) * | 2012-03-28 | 2012-12-26 | 浙江长泰机械有限公司 | High-power tractor transfer case |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051056A (en) * | 2016-07-27 | 2016-10-26 | 中科合肥微小型燃气轮机研究院有限责任公司 | Three-side output speed reduction gear train for gas turbine |
| CN106051056B (en) * | 2016-07-27 | 2018-08-10 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of gas turbine speed reduction gearing of three sides output |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120725 |