CN203756878U - Improvement of tractor planet final drive - Google Patents
Improvement of tractor planet final drive Download PDFInfo
- Publication number
- CN203756878U CN203756878U CN201420131761.6U CN201420131761U CN203756878U CN 203756878 U CN203756878 U CN 203756878U CN 201420131761 U CN201420131761 U CN 201420131761U CN 203756878 U CN203756878 U CN 203756878U
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- CN
- China
- Prior art keywords
- planet
- planet wheel
- tractor
- shaft
- improvement
- 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 - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
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- Retarders (AREA)
Abstract
The utility model belongs to the technical field of tractor final drive and relates to improvement of the tractor planet final drive. An output shaft and a driving shaft which are arranged coaxially are included, the output shaft is sleeved with a shaft sleeve, a sun wheel is arranged at one end of the driving shaft, a planet wheel in meshed drive with the sun wheel is mounted on a planet wheel shaft mounted on the output shaft, a tooth ring provided with inner teeth and arranged on the shaft sleeve is in meshed drive with the planet wheel, a bearing and a middle ring are arranged between the planet wheel shaft and the planet wheel from inside to outside in sequence in a sleeved mode, and a radial floating gap is formed between the planet wheel and the middle ring. The improvement of the tractor planet final drive has the advantages that the middle ring is arranged, the radial floating gap is formed between the planet wheel and the middle ring to from a buffering oil film, the planet wheel can be in suspension connection, the even load of the planet wheel in the tooth length direction in the working process is ensured, and the service life of the planet wheel is prolonged.
Description
Technical field
The utility model belongs to tractor end drive technology field, refers in particular to the improvement of a kind of tractor planet end transmission.
Background technique
Referring to Fig. 1: at present, the transmission of tractor planet end, comprise the output shaft 80 and driving shaft 10(or title sun gear semiaxis that are coaxially set), on output shaft 80, be set with axle sleeve 70, sun gear 11 is installed on driving shaft 10, circumferentially three uniform planet wheels 20 are installed on the planet wheel shaft 50 of installing on output shaft 80, described planet wheel 20 and sun gear 11 engagement driving, the gear teeth 21 engagement driving of the gear teeth 61 of the gear ring 60 with internal tooth arranging on axle sleeve 70 and described planet wheel 20, between planet wheel shaft 50 and planet wheel 20, be provided with bearing 40, the spline 12 arranging on driving shaft 10 and the spline joint of the differential side gear in gear box of tractor, due to the gear ring with internal tooth, planet wheel, the foozle of the inferior planet frame of planet wheel is installed, three planet wheels are during respectively with gear ring and sun gear engagement driving, uneven carrying on tooth length direction, cause planet wheel early failue.
Model utility content
The purpose of this utility model is to provide a kind of improvement of tractor planet end transmission of planet wheel long service life.
The purpose of this utility model is achieved in that
The improvement of a kind of tractor planet end transmission, comprise the output shaft and the driving shaft that are coaxially set, on output shaft, be set with axle sleeve, one end of driving shaft is provided with sun gear, planet wheel with described sun gear engagement driving is installed on the planet wheel shaft of installing on output shaft, the gear ring with internal tooth arranging on axle sleeve and described planet wheel engagement driving, between described planet wheel shaft and planet wheel, be set with successively from inside to outside bearing and central ring, between planet wheel and central ring, be provided with flying height radially.
Above-mentioned planet wheel shaft and the bearing, central ring and the planet wheel that are sleeved on successively on planet wheel shaft are circumferentially evenly equipped with three covers between the gear ring with internal tooth and sun gear.
Above-mentioned bearing is needle bearing.
Above-mentioned output shaft and the front and rear part between axle sleeve are supported by needle bearing respectively.
The above-mentioned gear ring with internal tooth is screwed onto on the extended superior planet frame of sleeve end.
Above-mentioned planet wheel shaft is screwed onto on inferior planet frame, and inferior planet frame is connected to one end of output shaft by pin key or spline or bolt, and the other end of output shaft is provided with tractor wheel installation position.
Above-mentioned driving shaft and sun gear are integral type structure, and the other end of driving shaft is one-body molded an involute splines, so as with gear box of tractor in the spline joint of differential side gear.
The utility model compared to existing technology outstanding and useful technique effect is:
The utility model is for the defect of planet wheel early failue in prior art, involute splines is arranged to in one end of driving shaft to suspend and is connected with the spline of the differential side gear with in gear box of tractor, and between planet wheel shaft and planet wheel, be set with successively from inside to outside bearing and central ring, between planet wheel and central ring, be provided with flying height radially, while making the sun gear drive planet wheel engagement driving on driving shaft, planet wheel is to suspend and connects, the axis of driving shaft is substantially constant, do not affect the braking effect of the braking plate of the wet brake of installing on driving shaft outside sun gear, because planet wheel and near accessory thereof are all immersed in lubricant oil, described flying height forms a kind of buffering oil film, planet wheel all carrying on tooth length direction while having guaranteed work, extended the working life of planet wheel.
Accompanying drawing explanation
Fig. 1 is the sectional view of prior art.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is the A cloth enlarged view of Fig. 2.
Fig. 4 is transmission principle schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, with specific embodiment, the utility model is further described, referring to Fig. 2-Fig. 4:
The improvement of a kind of tractor planet end transmission, comprise the output shaft 80 and driving shaft 10 that are coaxially set, on output shaft 80, be set with axle sleeve 70, one end of driving shaft 10 is provided with sun gear 11, planet wheel 20 with described sun gear 11 engagement driving is installed on the planet wheel shaft 50 of installing on output shaft 80, external tooth 21 engagement driving of the gear ring 60 with internal tooth 61 arranging on axle sleeve 70 and described planet wheel 20, between described planet wheel shaft 50 and planet wheel 20, be set with successively from inside to outside bearing 40 and central ring 30, between planet wheel 20 and central ring 30, be provided with flying height H radially.
Above-mentioned planet wheel shaft 50 and the bearing 40, central ring 30 and the planet wheel 20 that are sleeved on successively on planet wheel shaft 50 are circumferentially evenly equipped with three covers between the gear ring 60 with internal tooth 61 and sun gear 11.
Above-mentioned bearing 40 is needle bearing, so that the larger load of carrying.
Above-mentioned output shaft 80 and the front and rear part between axle sleeve 70 are supported by needle bearing 41,42 respectively, so that the larger load of carrying.
The above-mentioned gear ring 60 with internal tooth 61 is screwed onto on the axle sleeve 70 extended superior planet framves 71 in end.
Above-mentioned planet wheel shaft 50 is screwed onto on inferior planet frame 51, and inferior planet frame 51 is connected to one end of output shaft 80 by pin key or spline or bolt, and the other end of output shaft is provided with tractor wheel installation position 81.
Above-mentioned driving shaft 10 is integral type structure with sun gear 11, and the other end of driving shaft 10 is one-body molded an involute splines 13, so as with gear box of tractor in the spline joint of differential side gear.
Why the utility model arranges central ring and flying height is radially set between planet wheel and central ring, rather than on the back lash of the key tooth of the sun gear gear teeth on driving shaft and involute splines, matching gap is set and realizes floating connection, because the bad setting of this matching gap, this matching gap is little, floating load balancing weak effect, this matching gap is large, although floating load balancing is effective, but during spline transmitting torque, matching gap is excessive, the premature wear that easily causes spline, in addition, the braking plate of wet brake is housed by spline 12 on the driving shaft 10 in sun gear outside, driving shaft 10 floats excessive, braking effect is also had to impact.
Above-described embodiment is only preferred embodiment of the present utility model, not limits according to this protection domain of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection domain of the present utility model.
Claims (7)
1. the improvement of tractor planet end transmission, comprise the output shaft and the driving shaft that are coaxially set, on output shaft, be set with axle sleeve, one end of driving shaft is provided with sun gear, planet wheel with described sun gear engagement driving is installed on the planet wheel shaft of installing on output shaft, the gear ring with internal tooth arranging on axle sleeve and described planet wheel engagement driving, it is characterized in that: between described planet wheel shaft and planet wheel, be set with successively from inside to outside bearing and central ring, between planet wheel and central ring, be provided with flying height radially.
2. the improvement of a kind of tractor planet end according to claim 1 transmission, is characterized in that: described planet wheel shaft and the bearing, central ring and the planet wheel that are sleeved on successively on planet wheel shaft are circumferentially evenly equipped with three covers between the gear ring with internal tooth and sun gear.
3. the improvement of a kind of tractor planet end according to claim 1 transmission, is characterized in that: described bearing is needle bearing.
4. the improvement of a kind of tractor planet end according to claim 1 transmission, is characterized in that: described output shaft and the front and rear part between axle sleeve are supported by needle bearing respectively.
5. the improvement of a kind of tractor planet end according to claim 1 transmission, is characterized in that: the described gear ring with internal tooth is screwed onto on the extended superior planet frame of sleeve end.
6. the improvement of a kind of tractor planet end according to claim 1 transmission, it is characterized in that: described planet wheel shaft is screwed onto on inferior planet frame, inferior planet frame is connected to one end of output shaft by pin key or spline or bolt, the other end of output shaft is provided with tractor wheel installation position.
7. according to the improvement of a kind of tractor planet end transmission described in claim 1-6 any one, it is characterized in that: described driving shaft and sun gear are integral type structure, the other end of driving shaft is one-body molded an involute splines, so as with gear box of tractor in the spline joint of differential side gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131761.6U CN203756878U (en) | 2014-03-22 | 2014-03-22 | Improvement of tractor planet final drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131761.6U CN203756878U (en) | 2014-03-22 | 2014-03-22 | Improvement of tractor planet final drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756878U true CN203756878U (en) | 2014-08-06 |
Family
ID=51252158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420131761.6U Expired - Lifetime CN203756878U (en) | 2014-03-22 | 2014-03-22 | Improvement of tractor planet final drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883681A (en) * | 2014-03-22 | 2014-06-25 | 浙江海天机械有限公司 | Improvement in planet final drive of tractor |
-
2014
- 2014-03-22 CN CN201420131761.6U patent/CN203756878U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883681A (en) * | 2014-03-22 | 2014-06-25 | 浙江海天机械有限公司 | Improvement in planet final drive of tractor |
| CN103883681B (en) * | 2014-03-22 | 2017-02-01 | 浙江海天机械有限公司 | Improvement in planet final drive of tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Zhenghua Inventor before: Chen Zhengwen |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN ZHENGWEN TO: CHEN ZHENGHUA |