CN2406852Y - Automatic speed differential mechanism for small size four wheel tractor - Google Patents
Automatic speed differential mechanism for small size four wheel tractor Download PDFInfo
- Publication number
- CN2406852Y CN2406852Y CN 00201905 CN00201905U CN2406852Y CN 2406852 Y CN2406852 Y CN 2406852Y CN 00201905 CN00201905 CN 00201905 CN 00201905 U CN00201905 U CN 00201905U CN 2406852 Y CN2406852 Y CN 2406852Y
- Authority
- CN
- China
- Prior art keywords
- gear
- wheel
- differential
- axle
- diff
- 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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Abstract
The utility model relates to a differential speed device which is used by a small four-wheel tractor and is composed of a casing body, a planet gear, etc. A big gear is fixed on an outer casing, the planet gear is arranged on a shaft of the differential mechanism, the shaft of the differential mechanism is vertical to the axial line of a half shaft gear, definite free gap in a radical direction is formed between a shaft hole of the planet gear and the shaft of the differential mechanism, and friction cone sleeves are fixed on shaft sleeves on the outer ends of two half shaft gears; the position in the outer casing of the differential mechanism, which is corresponding to the friction cone sleeves, is provided with cone holes which are matched with the friction cone sleeves and the two half shaft gears are provided with definite floating gap in the radial direction in the casing body. The utility model has the advantage of simple structure, and can realize the functions of automatic differential speed and differential torsion without a complicated differential lock.
Description
The utility model is the differential gear that a kind of self-propelled vehicle uses, and can be used on the small four-wheel tractor of two-wheel driving.
Diff on common farm vehicle and the compact tractor does not have differential locking-device, when causing two drive wheel adhesive ability different, the wheel slip idle running that adhesive ability is little can't be travelled at muddy uneven local vehicle, has limited the in-use performance and the work efficiency of common farm vehicle and compact tractor.
The purpose of this utility model will design on a kind of common farm vehicle and the compact tractor operable small four-wheel tractor exactly and turn round diff from moment, need not just can realize the function that the differential difference is turned round by complicated differential locking-device.
The utility model is to realize like this.Difference is turned round diff by differential gear box, big gear wheel, planetary wheel, composition such as differential axle and axle side gear, big gear wheel is fixed on difference and turns round on the diff shell, remaining part all is contained in the housing, big gear wheel overlaps with the two-semiaxle Gear axis, planetary wheel is contained on the differential axle vertical with the axle side gear axis, the differential axle two ends are fixed on the housing, planetary wheel and axle side gear are bevel gear and intermesh, certain radial play is arranged between planetary gear shaft hole and the differential axle, the two-semiaxle bore is splined hole, be fixed with friction taper sleeve on its outer end axle sleeve, the diff enclosure has the taper hole that cooperates with friction taper sleeve with the corresponding position of friction taper sleeve, and the two-semiaxle gear has certain play gap in housing.Planetary axis hole is the big taper hole of tapering slightly, and the angle of taper hole and axis is about 2 degree, and the taper hole direction is identical with outside bevel gear direction, and planetary wheel leans on housing one end that the macropore thrust pad is housed.The angle of the tapering of taper hole and axis is about 13 degree on friction taper sleeve on the axle sleeve of two-semiaxle gear outer end and the housing.Adopt such structure, power is given the identical left and right wheels of two resisting moments by the big gear wheel on the diff shell through the planetary wheel uniform distribution during small four-wheel tractor cruising, just can turn to flexibly under the diff effect during normal direction of rotation.Run into the different situation of two-wheeled resisting moment, be absorbed in the hole as a wheel, resisting moment increases, the moment of torsion of the axle side gear transmission of this side is also bigger on the diff at this moment, because planetary gear shaft hole has certain diameter clearance, force planetary wheel to produce displacement to opposite side, and the axle side gear that promotes opposite side produces longitudinal travel, thereby taper hole is combined produce very big friction moment, quite diff is locked, trac. can roll away from outside the hole smoothly, and when the two-wheeled resisting moment was identical, diff can recover the differential state again automatically.
The utility model is compared with existing small four-wheel tractor diff, and is simple in structure, need not just can realize the function that automatic differential difference is turned round by complicated differential locking-device.Be particularly suitable for common farm vehicle and compact tractor and do not have using on the self-propelled vehicle of differential locking-device.
Accompanying drawing is a structural representation of the present utility model.
Difference is turned round differential casing 1 usefulness steel casting and is made, big gear wheel 8, planetary wheel 4, differential axle 5 and axle side gear 3 etc. are all made with No. 45 steel, big gear wheel 8 is fixed on difference and turns round on the diff shell 1, remaining part all is contained in the housing, big gear wheel 8 and 3 deads in line of two-semiaxle gear, planetary wheel 4 is contained on the differential axle 5 with axle side gear 3 axis normal, differential axle 5 two ends are fixed on the housing 1, planetary wheel 4 is bevel gear with axle side gear 3 and intermeshes, between planetary wheel 4 axis holes and the differential axle 5 certain radial play is arranged, two-semiaxle gear 3 endoporus are splined hole, be fixed with friction taper sleeve 2 on its outer end axle sleeve, there is the taper hole that cooperates with friction taper sleeve diff shell 1 and differential cover 7 inside with friction taper sleeve 2 corresponding positions, and two-semiaxle gear 3 has certain play gap in housing.The axis hole of planetary wheel 4 is the big taper hole of tapering slightly, and the angle of taper hole and axis is about 2 degree, and the taper hole direction is identical with outside bevel gear direction, and planetary wheel 4 leans on housing one end that macropore thrust pad 6 is housed.The angle of the tapering of taper hole and axis is about 13 degree on friction taper sleeve 2 on the two-semiaxle gear 3 outer end axle sleeves and the housing.Adopt such structure, power is given the identical left and right wheels of two resisting moments by the big gear wheel on the diff shell 8 through planetary wheel 4 uniform distributions during the small four-wheel tractor cruising, just can turn to flexibly under the diff effect during normal direction of rotation.Run into the different situation of two-wheeled resisting moment, be absorbed in the hole as a wheel, resisting moment increases, the moment of torsion of axle side gear 3 transmission of this side is also bigger on the diff at this moment, because planetary wheel 4 axis holes have certain diameter clearance, force planetary wheel 4 to produce displacement to opposite side, and the axle side gear 3 that promotes opposite side produces longitudinal travel, thereby taper hole is combined produce very big friction moment, quite diff is locked, trac. can roll away from outside the hole smoothly like this, and when the two-wheeled resisting moment was identical, diff can recover the differential state again automatically.
Claims (3)
1. small four-wheel tractor is turned round diff from moment, by differential gear box, big gear wheel, planetary wheel, composition such as differential axle and axle side gear, it is characterized in that big gear wheel is fixed on difference and turns round on the diff shell, remaining part all is contained in the housing, big gear wheel overlaps with the two-semiaxle Gear axis, planetary wheel is contained on the differential axle vertical with the axle side gear axis, the differential axle two ends are fixed on the housing, planetary wheel and axle side gear are bevel gear and intermesh, certain radial play is arranged between planetary gear shaft hole and the differential axle, the two-semiaxle bore is splined hole, be fixed with friction taper sleeve on its outer end axle sleeve, the diff enclosure has the taper hole that cooperates with friction taper sleeve with the corresponding position of friction taper sleeve, and the two-semiaxle gear has certain play gap in housing.
2. small four-wheel tractor as claimed in claim 1 is turned round diff from moment, it is characterized in that planetary axis hole is the big taper hole of tapering slightly, the angle of taper hole and axis is about 2 degree, and the taper hole direction is identical with outside bevel gear direction, and planetary wheel is equipped with the macropore thrust pad by housing one end.
3. small four-wheel tractor as claimed in claim 1 is turned round diff from moment, it is characterized in that the tapering of taper hole on friction taper sleeve on the axle sleeve of two-semiaxle gear outer end and the housing and the angle of axis are about 13 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00201905 CN2406852Y (en) | 2000-01-03 | 2000-01-03 | Automatic speed differential mechanism for small size four wheel tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00201905 CN2406852Y (en) | 2000-01-03 | 2000-01-03 | Automatic speed differential mechanism for small size four wheel tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406852Y true CN2406852Y (en) | 2000-11-22 |
Family
ID=33571058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00201905 Expired - Fee Related CN2406852Y (en) | 2000-01-03 | 2000-01-03 | Automatic speed differential mechanism for small size four wheel tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406852Y (en) |
-
2000
- 2000-01-03 CN CN 00201905 patent/CN2406852Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |