CN201534491U - Vehicle differential lock - Google Patents
Vehicle differential lock Download PDFInfo
- Publication number
- CN201534491U CN201534491U CN2009201835012U CN200920183501U CN201534491U CN 201534491 U CN201534491 U CN 201534491U CN 2009201835012 U CN2009201835012 U CN 2009201835012U CN 200920183501 U CN200920183501 U CN 200920183501U CN 201534491 U CN201534491 U CN 201534491U
- Authority
- CN
- China
- Prior art keywords
- differential locking
- sliding sleeve
- differential lock
- differential
- automobile
- 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 discloses a vehicle differential lock, which comprises a master pin, a shifting fork, a sliding sleeve of the differential lock, a fixing sleeve of the differential lock, and a driving device capable of driving the main pin to rotate; two ends of the main pin are pivotally connected inside locating sleeves and two locating sleeves are fixed on an axle housing of a vehicle drive axle; one end of the shifting fork is connected on the main pin and the other end thereof is fixedly connected with the sliding sleeve of the differential lock; the sliding sleeve of the differential lock is movably sleeved on a semi-axis and is fixedly connected with a large shell of a differential mechanism; and concave-convex structures matched with each other are respectively arranged on the sliding sleeve of the differential lock and the fixing sleeve thereof. The locking and unlocking of the differential lock can be realized as follows: the master pin driven by the driving device can perform rotation to drive the shifting fork to swing by a certain angle, so that the sliding sleeve of the differential lock can perform reciprocating rectilinear motion along the semi-axis and can be meshed with and released from the fixing sleeve of the differential lock. Therefore, the structure provided by the utility model has the benefits of simple and reasonable structure and convenient use, and can be applied to small and medium size auto trucks, engineering machinery and the like.
Description
Technical field
The utility model relates to a kind of technical field of automobile drive axle, refers to a kind of automobile-used differential locking-device especially.
Background technology
Travel at the vehicle of abominable road conditions, wheel regular meeting is absorbed in mud, sand ground or snowfield and makes tyre skidding or unsettled, thereby vehicle is got into a difficult position.In this case, the common way of people is encased inside stone below wheel, to increase wheel and ground-surface friction, perhaps adopts hutching.Yet these methods are poor effect often, and may also can make wheel sunken more sunken more dark.
Unsettled or skid when drive wheel, the reason that causes another drive wheel to run out of steam is because the setting of diff.Diff mainly is the speed discrepancy of inside and outside wheel when being used for the balancing vehicle turning, and then vehicle can be turned smoothly.Exactly because and the differential principle of diff and etc. torsional interaction, when that wheel that skids loses adhesive ability and during fast rotational, another wheel rotates hardly and loses propulsive effort, causes vehicle to get rid of poverty and advances.Present terms of settlement is exactly with differential locking-device the semiaxis of that wheel that loses propulsive effort to be pinned, and this wheel is no longer made a difference to power distribution.As seen the function of differential locking-device maximum is that the drive wheel that guarantees other when tyre skidding still can obtain enough propulsive efforts.Yet, existing differential locking-device complex structure, the operation loaded down with trivial details, be not suitable for being applied to small and medium-sized car and construction machinery and equipment.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of automobile-used differential locking-device, and it is simple and reliable for structure, easy to use, can be used in small and medium-sized car and construction machinery and equipment.
For solving the problems of the technologies described above, technical solution of the present utility model is:
A kind of automobile-used differential locking-device comprises stub, shift fork, differential locking-device sliding sleeve, differential locking-device fixed cover and can drive the actuating device that stub rotates; These stub two ends are articulated in the locating bush, and two locating bushs are fixed on the axle housing of vehicle drive axle; This shift fork one end is connected on the stub, and the other end is captiveed joint with the differential locking-device sliding sleeve; This differential locking-device sliding sleeve activity is placed on the semiaxis, and this differential locking-device fixed cover also is placed on the semiaxis, and captives joint with the big shell of diff, is respectively equipped with the concaveconvex structure that can cooperatively interact on this differential locking-device sliding sleeve and the differential locking-device fixed cover.
The concaveconvex structure of described differential locking-device sliding sleeve and differential locking-device fixed cover is the dislocation key.
Described differential locking-device fixed cover is connected with diff by spline, and passes through bolt.
Described differential locking-device sliding sleeve is connected on the semiaxis by spline.
Described actuating device is fluid pressure drive device or actuating device of atmospheric pressure.
Described stub is installed in the sliding shaft sleeve of locating bush.
After adopting such scheme,, make the differential locking-device sliding sleeve to do linear reciprocating motion, with the engagement of differential locking-device fixed cover with throw off along semiaxis when stub is driven by actuating device and when rotatablely moving, can drive shift fork swing certain angle.Like this can be according to actual needs, when needs diff normal operation, the differential locking-device sliding sleeve separates with the differential locking-device fixed cover; When by abominable road conditions such as mire, diff need be pinned, just make the engagement of differential locking-device sliding sleeve and differential locking-device fixed cover, this just needs shift fork to swing suitable angle.The utility model only needs on the basis of original structure, process spline on the external diameter of the big shell of diff, each parts that just can described differential locking-device convenient for assembly are realized the pinning and the release of diff, simple and reliable for structure, easy to use, can be used in middle-size and small-size autotruck, construction machinery and equipment etc.
Description of drawings
Fig. 1 is a perspective view of the present utility model;
Fig. 2 is the utility model drive axle integral structure scheme drawing;
Fig. 3 is a front view of the present utility model;
Fig. 4 is a cutaway view of the present utility model;
Fig. 5 is the schematic perspective view of the utility model differential locking-device sliding sleeve;
Fig. 6 is the schematic perspective view of the utility model differential locking-device fixed cover.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
What the utility model disclosed is a kind of automobile-used differential locking-device, as shown in Figures 1 to 4, is preferred embodiment of the present utility model.Described differential locking-device comprises stub 5, shift fork 6, differential locking-device sliding sleeve 8, differential locking-device fixed cover 9 and actuating device.Wherein:
Described stub 5 two end axles are placed in the sliding shaft sleeve 4 that is installed in locating bush 3 and can rotatablely move, and two locating bushs 3 are cast or are welded on the axle housing 2 of vehicle drive axle.
Described shift fork 6 one ends are connected on the stub 5 by flat key, and the other end is connected with differential locking-device sliding sleeve 8.And that the connection mode of shift fork 6 and differential locking-device sliding sleeve 8 can be is multiple, and among the figure shown in the embodiment, this shift fork 6 is to be stuck in the groove 82 of sliding sleeve 8 to carry out bonded assembly.
Described differential locking-device sliding sleeve 8 (cooperating shown in Figure 5) is installed on the semiaxis 1 by spline, and can be on semiaxis 1 linear reciprocating motion.Also be provided with on this differential locking-device sliding sleeve 8 and fix concaveconvex structure 81.
Described differential locking-device fixed cover 9 (cooperating shown in Figure 6) is installed on big shell 10 external diameters of diff on the semiaxis 1 by spline, and passes through bolt.And this differential locking-device fixed cover 9 is provided with the concaveconvex structure 91 that cooperates with the concaveconvex structure 81 of differential locking-device sliding sleeve 8.
Above-mentioned differential locking-device sliding sleeve 8 can be the dislocation key with the concaveconvex structure 81,91 of differential locking-device fixed cover 9, shown in embodiment among the figure.
Described actuating device (not shown) can be fluid pressure drive device or actuating device of atmospheric pressure etc., and it rotatablely moves in order to drive described stub 5.
Working process of the present utility model is: when normal vehicle operation, need big shell 10 normal operation of diff, this moment, differential locking-device sliding sleeve 8 separated with differential locking-device fixed cover 9.When by abominable road conditions such as mire, the big shell 10 of diff need be pinned, at this moment, drive stub 5 rotations by actuating device, drive shift fork 5 and swing a suitable angle, make differential locking-device sliding sleeve 8 do straight-line motion, and mesh, thereby the big shell 10 of diff is pinned with differential locking-device fixed cover 9 along semiaxis 1.After diff pins, be actually diff and semiaxis locking are integral, make diff lose differential action, make the both sides semiaxis become rigid attachment, so just can pass to the drive axle that does not trackslip to most moment of torsion even all torsion torque, make full use of its adhesive ability and produce enough tractive forces, make automobile can continue to travel.
Claims (6)
1. automobile-used differential locking-device is characterized in that: it comprises stub, shift fork, differential locking-device sliding sleeve, differential locking-device fixed cover and can drive the actuating device of stub rotation; These stub two ends are articulated in the locating bush, and two locating bushs are fixed on the axle housing of vehicle drive axle; This shift fork one end is connected on the stub, and the other end is captiveed joint with the differential locking-device sliding sleeve; This differential locking-device sliding sleeve activity is placed on the semiaxis, and this differential locking-device fixed cover is captiveed joint with the big shell of diff, is respectively equipped with the concaveconvex structure that can cooperatively interact on this differential locking-device sliding sleeve and the differential locking-device fixed cover.
2. automobile-used differential locking-device as claimed in claim 1 is characterized in that: the concaveconvex structure of described differential locking-device sliding sleeve and differential locking-device fixed cover is the dislocation key.
3. automobile-used differential locking-device as claimed in claim 1 or 2 is characterized in that: described differential locking-device fixed cover is connected by the big shell of spline and diff, and passes through bolt.
4. automobile-used differential locking-device as claimed in claim 3 is characterized in that: described differential locking-device sliding sleeve is connected on the semiaxis by spline.
5. automobile-used differential locking-device as claimed in claim 4 is characterized in that: described actuating device is fluid pressure drive device or actuating device of atmospheric pressure.
6. automobile-used differential locking-device as claimed in claim 5 is characterized in that: described stub is installed in the sliding shaft sleeve of locating bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201835012U CN201534491U (en) | 2009-10-29 | 2009-10-29 | Vehicle differential lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201835012U CN201534491U (en) | 2009-10-29 | 2009-10-29 | Vehicle differential lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201534491U true CN201534491U (en) | 2010-07-28 |
Family
ID=42534275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201835012U Expired - Fee Related CN201534491U (en) | 2009-10-29 | 2009-10-29 | Vehicle differential lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201534491U (en) |
-
2009
- 2009-10-29 CN CN2009201835012U patent/CN201534491U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20141029 |
|
| EXPY | Termination of patent right or utility model |