CN203809639U - Differential lock - Google Patents
Differential lock Download PDFInfo
- Publication number
- CN203809639U CN203809639U CN201420045671.5U CN201420045671U CN203809639U CN 203809639 U CN203809639 U CN 203809639U CN 201420045671 U CN201420045671 U CN 201420045671U CN 203809639 U CN203809639 U CN 203809639U
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- CN
- China
- Prior art keywords
- differential lock
- bearing
- lock
- differential
- brake shoe
- 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 the technical field of automobile driving, in particular to a differential lock. The differential lock comprises a differential lock shaft, a cylindrical brake base, a bearing fixing base, a bearing and a cylindrical shell, wherein a fixing base is arranged at one end of the differential lock shaft; symmetrical brake blocks are arranged on the surface of the brake base close to the end part; the brake blocks are connected through an elastic part along the surface of the brake base; the brake blocks can rotate around the axis of the end part; the brake base sleeves the differential lock shaft; one side of each brake block is matched with the fixing base while the other side is matched with the bearing sleeving the brake base; the bearing is arranged in the bearing fixing base; the bearing fixing base is arranged in the shell; the end parts of the brake blocks are higher than the outer surface of the shell. The differential lock has a simple structure; the brake blocks instead of friction plates are used, so that the brake blocks are not long-term abraded as the friction plates, are not easily damaged and are not frequently exchanged; the use cost is reduced.
Description
Technical field
The utility model relates to Automobile drive technical field, relates in particular to a kind of differential lock.
Background technique
The power of motor car engine, through clutch, speed changer, transmission shaft, is finally sent to ransaxle and distributes to semiaxis driving wheel in left and right again, and in this power transmission approach, ransaxle is last assembly, and its critical piece is retarder and differential mechanism.
Open differential is made up of parts such as planetary pinion, planetary wheel carrier (differential carrier), differential gears.The power of motor enters differential mechanism through transmission shaft, directly drives planetary wheel carrier, then drives left and right two semiaxis by planet wheel, drives respectively left and right wheel.In the time that automobile is kept straight on, left and right wheel equates in state of equilibrium with planetary wheel carrier three's rotating speed, and in the time of automobile turning, three's state of equilibrium is destroyed, causes nearside wheel rotating speed to reduce, and outboard wheel rotating speed increases.The effect of differential mechanism is exactly in the semiaxis transferring power of both sides, allows both sides semiaxis with different rotating speed rotations, meets two sidecar wheels and does equidistantly not travel with the form of pure rolling as far as possible, reduces the friction on tire and ground.And in the time that a driving wheel skids, will be with differential lock by integral to differential carrier and half shaft locking, make differential mechanism lose differential action, all torsion torque can be transferred on opposite side driving wheel.
Differential lock is in the market the form that uses friction plate substantially, reaches latch functions by friction.This differential lock friction plate easily damages, and the life-span is shorter, and frequent replacing caused trouble and improved user cost.
Summary of the invention
Problem to be solved in the utility model be traditional differential lock life-span short, change trouble, defect that user cost is high, a kind of differential lock is provided, its life-span length, features simple structure, user cost are low.
The utility model embodiment provides a kind of differential lock, it comprises differential lock shaft, lock seat cylindraceous, bearing fixed seat, bearing and shell cylindraceous, one end of described differential lock shaft is provided with fixed base, surface near its end on described lock seat is provided with symmetrical brake shoe, between brake shoe by linking together along the elastic member of lock seating face, brake shoe can rotate around the axle center of its end, described lock cover for seat is closed and is connected on described differential lock shaft, brake shoe one side coordinates with fixed base, opposite side and fit are connected in the bearing fit on described lock seat, described bearing is located in bearing fixed seat, described bearing fixed seat is located in shell, the end of described brake shoe is higher than the outer surface of described shell.
Described brake shoe and described fixed base and the equal Spielpassung of shell.
The length of described bearing fixed seat, bearing and lock seat is all less than described shell) length.
Described shell is stretched out in one end of described differential lock shaft.
The end of described shell is provided with differential lock fixed base, and described differential lock shaft end stretches in described differential lock fixed base.
Between described brake shoe and bearing fixed seat, be provided with ball fixed base.
Described elastic member is spring.
A kind of differential mechanism, comprises described differential lock, and described differential lock is fixedly mounted on the output shaft between left half axle gear and the right axle shaft gear of differential mechanism, and brake shoe is positioned at the planetary lower end of differential mechanism.
Differential lock described in the utility model, beneficial effect is compared to existing technology:
Form a differential lock by parts such as differential lock shaft, brake shoes, it is arranged on differential mechanism, is made differential lock locking or is only locked by brake shoe, reaches and left and right sidesing driving wheel is driven or the differential lock object of function originally simultaneously.It is simple in structure; Owing to not using friction plate but brake shoe, brake shoe can long-time friction as friction plate, and it is not fragile, need not frequently change, and has reduced user cost.
Brief description of the drawings
Accompanying drawing 1 is the assembly structure sectional view of the utility model embodiment differential lock;
Accompanying drawing 2 is the differential lock axle construction sectional view of the utility model embodiment differential lock;
Accompanying drawing 3 is the ball fixed seat structure sectional view of the utility model embodiment differential lock;
The lock stand structure that accompanying drawing 4 is the utility model embodiment differential lock is analysed and observe intention;
Accompanying drawing 5 is the shell mechanism sectional view of the utility model embodiment differential lock;
Accompanying drawing 6 is the utility model embodiment differential lock and differential mechanism assembly structure phantom;
Accompanying drawing 7 is the utility model embodiment differential lock and differential mechanism assembly structure sectional view;
Accompanying drawing 8 is that brake shoe on the utility model embodiment differential lock is at planetary lower end action schematic diagram.
Wherein:
1, differential lock shaft; 2, lock seat; 3, bearing fixed seat; 4, bearing; 5, shell; 6, fixed base; 7, brake shoe; 8, elastic member; 9, differential lock fixed base; 10, ball fixed base; 11, left half axle gear; 12, right axle shaft gear; 13, planetary pinion.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment:
With reference to Fig. 1 ~ 5, differential lock described in the utility model, comprises differential lock shaft 1, lock seat 2, bearing fixed seat 3, bearing 4 and shell 5.Lock seat 2 is cylindric, and it can coordinate with differential lock shaft 1, and shell is also cylindric, and it can coordinate with bearing fixed seat 3.
One end surface of lock seat 2 is connected with symmetrically arranged brake shoe 7, and brake shoe 7 can rotate around the axle center of its end.Between brake shoe 7, link together by elastic member 8, elastic member 8 is preferably spring part.One end of differential lock shaft 1 is provided with fixed base 6, and lock seat 2 fits are connected on differential lock shaft 1, a side of brake shoe 7 and fixed base 6 Spielpassung.Bearing 4 is located in bearing fixed seat 3, and bearing 4 fits are connected on differential lock shaft 1, the opposite side of brake shoe 7 and bearing 4 Spielpassung.Bearing fixed seat 3 is located in shell 5, and shell 5 is stretched out in differential lock shaft 1 one ends.The end of brake shoe 7 is higher than the outer surface of shell 5, so that it can coordinate with planetary end.
The end of shell 5 is provided with differential lock fixed base 9, and the end of differential lock shaft 1 is stretched in differential lock fixed base 9, differential lock is fixed on the axle of differential mechanism by differential lock fixed base 9.
Wherein, the length of bearing fixed seat 3, bearing 4 and lock seat 2 is all less than the length of shell 5, so that it all can be arranged in shell 5.Between brake shoe 7 and bearing fixed seat 3, be provided with ball fixed base 10, to bearing is installed better.
With reference to Fig. 6,7, above-mentioned differential lock is installed on the differential mechanism of automobile, specifically: differential lock is fixedly mounted on the output shaft between left half axle gear 11 and the right axle shaft gear 12 of differential mechanism, and brake shoe 7 is positioned at the lower end of the planetary pinion 13 of differential mechanism.
In the time that one of them driving wheel of vehicle skids, driving wheel can drive left half axle gear 11 or right axle shaft gear 12 High Rotation Speeds, differential gear drives again planetary pinion 13 High Rotation Speeds, be arranged under the effect of the centrifugal force that the brake shoe 7 of planetary pinion 13 lower ends produces in the time of the High Rotation Speed of planetary pinion 13 and outwards open by elastic member 8, now brake shoe 7 stops the rotation, and then by differential lock locking, left and right sidesing driving wheel is driven simultaneously; After driving wheel stops skidding, the rotational speed of planetary pinion 13 reduces, and brake shoe 7 is return under the effect of elastic member 8, and the differential lock state that unlocks recovers the script function of differential mechanism.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (8)
1. a differential lock, is characterized in that:
Comprise differential lock shaft (1), lock seat cylindraceous (2), bearing fixed seat (3), bearing (4) and shell cylindraceous (5), one end of described differential lock shaft (1) is provided with fixed base (6), the upper surface near its end of described lock seat (2) is provided with symmetrical brake shoe (7), between brake shoe (7), link together by the elastic member (8) along lock seat (2) surface, brake shoe (7) can rotate around the axle center of its end, described lock seat (2) fit is connected on described differential lock shaft (1), brake shoe (7) one sides coordinate with fixed base (6), opposite side coordinates with the bearing (4) that fit is connected on described lock seat (2), described bearing (4) is located in bearing fixed seat (3), described bearing fixed seat (3) is located in shell (5), the end of described brake shoe (7) is higher than the outer surface of described shell (5).
2. differential lock as claimed in claim 1, is characterized in that: described brake shoe (7) and described fixed base (6) and all Spielpassung of shell (5).
3. differential lock as claimed in claim 1, is characterized in that: the length of described bearing fixed seat (3), bearing (4) and lock seat (2) is all less than the length of described shell (5).
4. differential lock as claimed in claim 1 or 2, is characterized in that: described shell (5) is stretched out in an end of described differential lock shaft (1).
5. differential lock as claimed in claim 1, is characterized in that: the end of described shell (5) is provided with differential lock fixed base (9), and described differential lock shaft (1) end is stretched in described differential lock fixed base (9).
6. differential lock as claimed in claim 1, is characterized in that: between described brake shoe (7) and bearing fixed seat (3), be provided with ball fixed base (10).
7. differential lock as claimed in claim 1, is characterized in that: described elastic member (8) is spring.
8. a differential mechanism, it is characterized in that: comprise the differential lock described in claim 1 ~ 7 any one, described differential lock is fixedly mounted on the output shaft between left half axle gear (11) and the right axle shaft gear (12) of differential mechanism, and brake shoe (7) is positioned at the lower end of the planetary pinion (13) of differential mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045671.5U CN203809639U (en) | 2014-01-24 | 2014-01-24 | Differential lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045671.5U CN203809639U (en) | 2014-01-24 | 2014-01-24 | Differential lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809639U true CN203809639U (en) | 2014-09-03 |
Family
ID=51448391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420045671.5U Expired - Fee Related CN203809639U (en) | 2014-01-24 | 2014-01-24 | Differential lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742622A (en) * | 2014-01-24 | 2014-04-23 | 优必胜(福建)机械工业有限公司 | Differential lock |
| CN105697713A (en) * | 2016-01-06 | 2016-06-22 | 泗阳县勇士机械制造有限公司 | Central two-way automatic differential lock of timely all-wheel-drive vehicle |
-
2014
- 2014-01-24 CN CN201420045671.5U patent/CN203809639U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742622A (en) * | 2014-01-24 | 2014-04-23 | 优必胜(福建)机械工业有限公司 | Differential lock |
| CN103742622B (en) * | 2014-01-24 | 2017-08-01 | 优必胜(福建)机械工业有限公司 | A kind of differential lock |
| CN105697713A (en) * | 2016-01-06 | 2016-06-22 | 泗阳县勇士机械制造有限公司 | Central two-way automatic differential lock of timely all-wheel-drive vehicle |
| CN105697713B (en) * | 2016-01-06 | 2018-06-05 | 泗阳县勇士机械制造有限公司 | A kind of center two-way automatic differential lock of in due course four-wheel drive cars |
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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: 20140903 Termination date: 20180124 |