CN204852222U - Smooth differential mechanism of friction disc formula limit - Google Patents
Smooth differential mechanism of friction disc formula limit Download PDFInfo
- Publication number
- CN204852222U CN204852222U CN201520529565.9U CN201520529565U CN204852222U CN 204852222 U CN204852222 U CN 204852222U CN 201520529565 U CN201520529565 U CN 201520529565U CN 204852222 U CN204852222 U CN 204852222U
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- China
- Prior art keywords
- pressure ring
- differential
- differential mechanism
- friction disc
- pinhole
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Abstract
The utility model relates to a smooth differential mechanism of friction disc formula limit includes differential mechanism shell, gasket, thrust gasket, differential side gear, pressure ring, planetary gear, planetary gear axle, driven friction disc, initiative friction disc, differential mechanism cap and cylindric lock, outside and the inside semicircle pinhole that all is equipped with of differential mechanism shell of pressure ring, the pressure ring utilizes the semicircle pinhole to pass through the cylindric lock cooperation with the differential mechanism shell, can make micro - axial displacement, the inside of pressure ring is the sphere, suits with the planetary gear back, and the pressure ring outside still is equipped with V type wedge groove, utilizes this V type wedge groove to make pressure ring and planetary gear axle cooperate, driven friction disc also is equipped with the semicircle pinhole, cooperatees through the cylindric lock with semicircle pinhole in the differential mechanism shell, spline on initiative friction disc and the differential side gear axle journal cooperatees. This structure smooth differential mechanism of friction disc formula limit has machining efficiency and machining precision height, manufacturing cost and operation cost of maintenance are low, long service life's advantage.
Description
Technical field
The utility model relates to engineering transportation Mechanical Driven bridge main reducing gear, particularly a kind of friction disk type limited-slip differential.
Background technique
The structural feature of ordinary conical planet gear type differential mechanism, determine it and can only drive mean allocation driving torque between wheel, and distribution according to need cannot be realized, what this have impact on automobile to a great extent passes through performance, when particularly or road surface that attachment condition uneven low at coefficient of attachment travelling, problem is more obvious, for addressing this problem, limited-slip differential is by people's development and application.Conventional friction chip limited-slip differential many employings pressure ring lug coordinates with respective grooves in differential carrier, and the processing of current lug and groove mainly adopts wire cutting technology, has that processing cost is high, efficiency is low, and conventional equipment is difficult to the defect ensureing machining accuracy; In addition, in friction disk type limited-slip differential, the friction layer of active friction plate mostly is copper powders alloy material, because differential mechanism is in running order at any time, under the service condition of high rotating speed, high pulling torque, easily there is premature abrasion in copper powders alloy material layer, cause the fault losing the sliding function of limit, increase maintenance cost, reduce service life of equipment.
Summary of the invention
The purpose of this utility model is to provide a kind of work efficiency and machining accuracy is high, manufacture cost and operating maintenance cost is low, the friction disk type limited-slip differential of long service life.
For achieving the above object, a kind of friction disk type limited-slip differential of the utility model comprises differential carrier, pad, thrust washer, differential gear, pressure ring, planetary pinion, planet pin, driven friction disk, active friction plate, differential-housing cover and straight pin; Outside and the differential carrier inside of described pressure ring are equipped with semi-circle pin holes, and pressure ring and differential carrier utilize semi-circle pin holes to be coordinated by straight pin, can move axially as trace; The inside of pressure ring spherically, adapts with planetary pinion back, and pressure ring outside is also provided with V-type wedge groove, utilizes this V-type wedge groove that pressure ring is matched with planet pin; Described driven friction disk is also provided with semi-circle pin holes, is matched by straight pin with semi-circle pin holes in differential carrier; Described active friction plate matches with the spline on differential gear axle journal.
A kind of friction disk type limited-slip differential of said structure is by cancelling friction disk type limited-slip differential pressure ring lug and the differential carrier groove mating structures of prior art, have employed the uniform semicircle pin-and-hole of each processing in pressure ring and differential carrier, and position cooperation by straight pin, active friction plate friction layer adopts Novel spraying Mo simultaneously, to ensure the wear resistance of friction layer, there is following characteristics:
1, pressure ring and differential casing adopt semi-circle pin holes to locate, simple and compact for structure, are convenient to processing and realize, take into account lower manufacture cost simultaneously.
2, active friction lamella adopts sprayed molybdenum technique, and molybdenum layer is thin, and wear resistance is good, anti-corrosion capability is strong, extends the working life of friction layer, improves transmission efficiency simultaneously.
Adopt said structure friction disk type limited-slip differential, driving torque distribution according to need can be realized.Solve the problem that existing friction disk type limited-slip differential manufacture cost is high, work efficiency is low, the easy premature abrasion of friction layer lost efficacy, extend the working life of differential mechanism.
Accompanying drawing explanation
Fig. 1 is the main cross-sectional schematic of a kind of friction disk type limited-slip differential structure of the utility model.
Fig. 2 is the schematic perspective view of differential carrier part in a kind of friction disk type limited-slip differential of the utility model.
Fig. 3 is the schematic perspective view of pressure ring part in a kind of friction disk type limited-slip differential of the utility model.
Reference character: differential carrier 1, pad 2, thrust washer 3, differential gear 4, pressure ring 5, planetary pinion 6, planet pin 7, driven friction disk 8, active friction plate 9, differential-housing cover 10, straight pin 11, semi-circle pin holes 12, V-type wedge groove 13.
Embodiment
Below in conjunction with the drawings and specific embodiments, a kind of friction disk type limited-slip differential of the utility model is described in further detail.
A kind of friction disk type limited-slip differential of the utility model shown in Fig. 1 ~ 3 comprises differential carrier 1, pad 2, thrust washer 3, differential gear 4, pressure ring 5, planetary pinion 6, planet pin 7, driven friction disk 8, active friction plate 9, differential-housing cover 10 and straight pin 11; Outside and differential carrier 1 inside of described pressure ring 5 are equipped with semi-circle pin holes 12, pressure ring 5 and differential carrier 1 utilize semi-circle pin holes 12 to be coordinated by straight pin 11, can move axially as trace, the inside of pressure ring 5 spherically, adapt with planetary pinion 6 back, pressure ring 5 outside is also provided with V-type wedge groove 13, utilizes this V-type wedge groove 13 that pressure ring 5 is matched with planet pin 7; Described driven friction disk 8 is also provided with semi-circle pin holes 12, is matched by straight pin 11 with semi-circle pin holes 12 in differential carrier 1; Described active friction plate 9 matches with the spline on differential gear 4 axle journal.
When left and right differential gear 4 is without speed discrepancy, driving torque passes to semiaxis and driving wheel by differential carrier 1 by planet pin 7, planetary pinion 6, differential gear 4 etc., now identical with open differential; When left and right differential gear 4 produces speed discrepancy, the rotating speed of differential carrier 1 and the rotating speed of left and right differential gear 4 unequal, can produce relative rotation between driven friction disk 8 and active friction plate 9, and now the V-type wedge groove 13 of pressure ring 5 can produce an axial pressure, driven friction disk 8 and active friction plate 9 are compressed to differential carrier 1, therefore by generation pivoting friction torque between the driving and driven friction plate in the left and right sides, its size is relevant with friction factor and impacting force, and its direction is then relevant with the relative rotation speed of left and right differential gear 4 both sides in differential carrier 1.The friction torque of changing one's position soon is opposite to the direction of rotation, and the friction torque of slow-speed side is identical with sense of rotation, thus achieves the limit of taking turns changing trains or buses soon sliding.
Pressure ring 5 and differential carrier 1 adopt straight pin 11 spacing, simple and compact for structure, are convenient to processing and realize, take into account lower manufacture cost simultaneously.Active friction plate 9 layers adopts sprayed molybdenum technique, and molybdenum layer is thin, and wear resistance is good, anti-corrosion capability is strong, prolongation friction disk type limited-slip differential working life.
Claims (1)
1. a friction disk type limited-slip differential, is characterized in that: it comprises differential carrier, pad, thrust washer, differential gear, pressure ring, planetary pinion, planet pin, driven friction disk, active friction plate, differential-housing cover and straight pin; Outside and the differential carrier inside of described pressure ring are equipped with semi-circle pin holes, and pressure ring and differential carrier utilize semi-circle pin holes to be coordinated by straight pin, can move axially as trace; The inside of pressure ring spherically, adapts with planetary pinion back, and pressure ring outside is also provided with V-type wedge groove, utilizes this V-type wedge groove that pressure ring is matched with planet pin; Described driven friction disk is also provided with semi-circle pin holes, is matched by straight pin with semi-circle pin holes in differential carrier; Described active friction plate matches with the spline on differential gear axle journal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520529565.9U CN204852222U (en) | 2015-07-21 | 2015-07-21 | Smooth differential mechanism of friction disc formula limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520529565.9U CN204852222U (en) | 2015-07-21 | 2015-07-21 | Smooth differential mechanism of friction disc formula limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852222U true CN204852222U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520529565.9U Expired - Fee Related CN204852222U (en) | 2015-07-21 | 2015-07-21 | Smooth differential mechanism of friction disc formula limit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782389A (en) * | 2016-05-20 | 2016-07-20 | 泗阳县勇士机械制造有限公司 | Variable pitch type limited slip differential and design method thereof |
-
2015
- 2015-07-21 CN CN201520529565.9U patent/CN204852222U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782389A (en) * | 2016-05-20 | 2016-07-20 | 泗阳县勇士机械制造有限公司 | Variable pitch type limited slip differential and design method thereof |
| CN105782389B (en) * | 2016-05-20 | 2019-02-01 | 泗阳县勇士机械制造有限公司 | A kind of variable pitch type limited-slip differential and its design method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20210721 |