CN207554730U - A kind of differential lock of pneumatic locking - Google Patents
A kind of differential lock of pneumatic locking Download PDFInfo
- Publication number
- CN207554730U CN207554730U CN201721747763.8U CN201721747763U CN207554730U CN 207554730 U CN207554730 U CN 207554730U CN 201721747763 U CN201721747763 U CN 201721747763U CN 207554730 U CN207554730 U CN 207554730U
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- ring
- compression ring
- lower housing
- differential lock
- annular
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Abstract
The utility model provides a kind of differential lock of pneumatic locking, belongs to differential lock technical field.The tracheae that it solves existing pneumatic differential lock can follow inlet duct to be rotated with differential mechanism, and there are security risks, reduce the technical problems such as the service life of differential lock.The compression ring front end of this pneumatic locking is set on the annular protrusion on the outside of lower housing and the air inlet of the gas outlet of compression ring and inlet channel is equipped with, the both sides of the air inlet of compression ring are respectively and fixedly provided with ring type seal, and the rear end interference fit of compression ring has bearing and the bearing is set on annular mounting portion.The utility model enables compression ring to be rotated relative to lower housing by bearing, simultaneously an annular air duct is formed by two ring type seals and the outer wall of compression ring inner wall and annular protrusion, when so that the compression ring is rotated with respect to lower housing, gas can also enter the air inlet of inlet channel by air duct, realize and maintain the locking state of differential lock, safety higher, service life are longer.
Description
Technical field
The utility model belongs to differential lock technical field, refers in particular to a kind of differential lock of pneumatic locking.
Background technology
The common open differential generally used now, mainly by housing, planetary gear shaft, planetary gear, axle shaft gear
Composition, axle shaft gear are coupled by semiaxis and driving wheel, and on good road surface when driving, performance is entirely capable of meeting vehicle
Driving requirements, but when vehicle traveling when on bad road surface, especially in ice and snow, miriness, wet and slippery, gravel, rugged evil
On bad road surface, the adhesive force of both sides wheel will appear very big difference, and often the small side of adhesive force will appear skidding, idle running, lead
Cause that vehicle cannot travel or even whipping occur out of control.The part vehicle of some auto vendors at present, it is poor to have chosen to install automatic-locking type
The problem of fast device although it is hanging to solve vehicle single wheel, is thoroughly lost under the limiting case of adhesive force, and vehicle travels,
Manual locking cannot be carried out in the case that expecting that road conditions are undesirable, lock could be realized so as to have skidded idle running in vehicle
Only, it often much surprisingly has occurred and that this when, and when getting into a difficult position, since resistance is excessive under some extreme cases
It is difficult still above water even if differential mechanism is locked up again without the inertia of advance.
To solve the above-mentioned problems, the differentiator of pneumatic locking comes into being, but existing pneumatic locking differential
Inlet duct is directly connected with the lower housing of differential lock, after differential mechanism is by differential lock locking, the tracheae for inlet duct gas supply
Also inlet duct can be followed to be rotated with differential mechanism, there are security risks, reduce the service life of differential lock.
Invention content
The purpose of this utility model is to provide the longer pneumatic locking of a kind of simple in structure, safety higher, service life
Differential lock.
What the purpose of this utility model was realized in：
A kind of differential lock of pneumatic locking, including upper shell and lower housing, peace that the upper shell and lower housing are surrounded
Both ends being provided in dress space, planetary gear shaft and two axle shaft gears being installed, two axle shaft gears are and planet
Gear engages, and the inner end of lower housing forms annular groove, sealing ring is provided in the annular groove, is provided on the inside of the lower housing
The reset that coupling ring is pushed to lower housing is provided between on the outside of the axle shaft gear of coupling ring, the coupling ring and close lower housing
Spring, the inside of the lower housing form inlet channel, and the gas outlet of the inlet channel is arranged on the inner wall of annular groove,
It is characterized in that, annular protrusion is formed on the outside of the lower housing, annular installation is formed on the outer end face of the annular protrusion
Portion, the air inlet of the inlet channel are arranged on the arcwall face of the annular protrusion, are connected with the compression ring front end of air inlet pipe
It is set on annular protrusion and the air inlet of the gas outlet of compression ring and inlet channel is equipped with, the two of the air inlet of the compression ring
Side is respectively and fixedly provided with ring type seal, and the rear end interference fit of compression ring has bearing and the bearing is set on annular mounting portion.
In a kind of differential lock of above-mentioned pneumatic locking, annular is both provided at left and right sides of the gas outlet of the compression ring
Groove, the ring type seal are fixed in the annular groove, and the ring is protruded from the inside of the ring type seal
Connected in star.
In a kind of differential lock of above-mentioned pneumatic locking, the limiting section of annular is formed in the middle part of the compression ring inner wall,
The inner face of the limiting section and the outer end face of annular protrusion lean, the inner face of the bearing and the outer end face phase of limiting section
Against.
In a kind of differential lock of above-mentioned pneumatic locking, the resetting spring can have multiple, and circular array is supported
Lean against the outside of coupling ring.
The utility model is prominent and beneficial compared with prior art to be had the technical effect that：
1st, the utility model by the outer end of compression ring set bearing connect with the annular mounting portion of differential lock lower housing,
Compression ring is enable to be rotated relative to the lower housing of differential lock, meanwhile, it is arranged on gas outlet and the inlet channel of the front end of compression ring
Air inlet is equipped with, and ring type seal is both provided in the both sides of compression ring gas outlet, compression ring inner wall, annular protrusion it is outer
Wall and two ring type seals together constitute an annular air duct, even if because compression ring is with respect to differential lock lower housing
It rotates, the gas flowed out from compression ring gas outlet can also enter the air inlet of inlet channel by air duct, realize simultaneously
The locking state of differential lock is maintained, the intake method of above-mentioned differential lock is simple in structure, and job stability is high, and air inlet pipe will not follow
Compression ring is rotated with differential mechanism upper and lower casing, safety higher, and service life is longer.
2nd, the design of two annular grooves of the utility model can make the connection of ring type seal and compression ring even closer,
It avoids ring type seal that axial displacement occurs, influences sealing effect, blocks up the air inlet of the gas outlet of compression ring or inlet channel
Plug and so on, be conducive to improve stability and the safety of the differential lock of this pneumatic locking.
3rd, the design of limiting section is easily installed in the compression ring of the utility model, when limiting section inner end is resisted against outside annular protrusion
Installation is completed during end face, the gas outlet of compression ring and the air inlet of inlet channel complete cooperation, easier for installation quick.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the structure diagram of the lower housing section of the utility model.
In figure, 1, upper shell；2nd, lower housing；3rd, gear shaft；4th, planetary gear；5th, axle shaft gear；6th, annular groove；7th, it seals
Ring；8th, coupling ring；9th, resetting spring；10th, inlet channel；11st, annular protrusion；12nd, annular mounting portion；13rd, ring type seal；
14th, bearing；15th, annular groove；16th, limiting section；17th, air inlet pipe；18th, compression ring.
Specific embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, referring to Fig. 1-2：
The differential lock of this pneumatic locking, including upper shell 1 and lower housing 2, installation that upper shell 1 and lower housing 2 are surrounded
Be provided with gear shaft 3 and two axle shaft gears 5 that both ends are equipped with planetary gear 4 in space, two axle shaft gears 5 with row
Star gear 4 engages, and the inner end of lower housing 2 forms annular groove 6, and sealing ring 7 is provided in annular groove 6, and the inside of lower housing 2 is provided with
It is provided between 5 outside of axle shaft gear of coupling ring 8, coupling ring 8 and close lower housing 2 and pushes coupling ring 8 to lower housing 2 answer
Position spring 9, resetting spring 9 can have multiple, circular array is resisted against the outside of coupling ring 8, the inside molding of lower housing 2
There is inlet channel 10, the gas outlet of inlet channel 10 is arranged on the inner wall of annular groove 6, and the outside of lower housing 2 forms convex annular
11 are played, forms annular mounting portion 12 on the outer end face of annular protrusion 11, the air inlet of inlet channel 10 is arranged on annular protrusion
On 11 arcwall face, be connected with air inlet pipe 17 18 front end of compression ring be set on annular protrusion 11 and the gas outlet of compression ring 18 with
The air inlet of inlet channel 10 is equipped with, and the both sides of the air inlet of compression ring 18 are respectively and fixedly provided with ring type seal 13, compression ring 18
Rear end interference fit has bearing 14 and the bearing 14 is set on annular mounting portion 12.
The utility model passes through the annular mounting portion 12 in the outer end of compression ring 18 setting bearing 14 and differential lock lower housing 2
Connection, compression ring 18 is enable to be rotated relative to the lower housing 2 of differential lock, meanwhile, be arranged on compression ring 18 front end gas outlet and
The air inlet of inlet channel 10 is equipped with, and is both provided with ring type seal 13, compression ring in the both sides of 18 gas outlet of compression ring
18 inner walls, the outer wall of annular protrusion 11 and two ring type seals 13 together constitute an annular air duct, even if
Because compression ring 18 rotates with respect to differential lock lower housing 2, the gas flowed out from 18 gas outlet of compression ring can also be led to by air
Road enters the air inlet of inlet channel 10, realizes and maintain the locking state of differential lock, the intake method structure of above-mentioned differential lock
Simply, job stability is high, and air inlet pipe 17 will not follow compression ring 18 to be rotated with differential mechanism upper and lower casing 2, safety higher,
Service life is longer.
As shown in Fig. 2, in order to more intuitively show the installation condition of ring type seal in Fig. 2, in two annular grooves its
In be mounted with ring type seal in an annular groove, do not install ring type seal in another annular groove.Compression ring 18
Annular groove 15 is both provided at left and right sides of gas outlet, ring type seal 13 is fixed in annular groove 15, and annular is close
The inside of seal 13 protrudes from annular groove 15, and the design of two annular grooves 15 can make ring type seal 13 and compression ring 18
Connect it is even closer, avoid ring type seal 13 occur axial displacement, influence sealing effect, by the gas outlet of compression ring 18 or into
The air inlet of gas channel 10 blocks, and is conducive to improve the stability and safety of the differential lock of this pneumatic locking
Property；The limiting section 16 of annular, the inner face of limiting section 16 and the outer end face of annular protrusion 11 are formed in the middle part of 18 inner wall of compression ring
It leans, the outer end face of the inner face and limiting section 16 of bearing 14 leans, when 16 inner end of limiting section is resisted against annular protrusion 11
Installation is completed during outer end face, the gas outlet of compression ring 18 and the air inlet of inlet channel 10 complete cooperation, easier for installation fast
It is prompt.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore：The equivalence changes that all structures, shape, principle according to the utility model are done, should all be covered by the protection of the utility model
Within the scope of.
Claims (4)
1. a kind of differential lock of pneumatic locking, including upper shell and lower housing, installation that the upper shell and lower housing are surrounded
Both ends are provided in space, planetary gear shaft and two axle shaft gears are installed, two axle shaft gears with planet tooth
Wheel engagement, the inner end of lower housing forms annular groove, sealing ring is provided in the annular groove, connection is provided on the inside of the lower housing
Ring is connect, the reset bullet that coupling ring is pushed to lower housing is provided between the coupling ring and the axle shaft gear outside of close lower housing
Spring, the inside of the lower housing form inlet channel, and the gas outlet of the inlet channel is arranged on the inner wall of annular groove, special
Sign is, annular protrusion is formed on the outside of the lower housing, annular mounting portion is formed on the outer end face of the annular protrusion,
The air inlet of the inlet channel is arranged on the arcwall face of the annular protrusion, and the compression ring front end for being connected with air inlet pipe is arranged
On annular protrusion and the air inlet of the gas outlet of compression ring and inlet channel is equipped with, and the both sides of the air inlet of the compression ring are equal
Ring type seal is fixed with, the rear end interference fit of compression ring has bearing and the bearing is set on annular mounting portion.
2. a kind of differential lock of pneumatic locking according to claim 1, it is characterised in that：A left side for the gas outlet of the compression ring
Right both sides are both provided with annular groove, and the ring type seal is fixed in the annular groove, and the ring type seal
Inside protrude from the annular groove.
3. a kind of differential lock of pneumatic locking according to claim 1, it is characterised in that：The middle part of the compression ring inner wall into
Type has the limiting section of annular, and the inner face of the limiting section and the outer end face of annular protrusion lean, the inner face of the bearing
It leans with the outer end face of limiting section.
4. a kind of differential lock of pneumatic locking according to claims 1 or 2 or 3, it is characterised in that：The resetting spring
Can have multiple, circular array is resisted against the outside of coupling ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721747763.8U CN207554730U (en) | 2017-12-14 | 2017-12-14 | A kind of differential lock of pneumatic locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721747763.8U CN207554730U (en) | 2017-12-14 | 2017-12-14 | A kind of differential lock of pneumatic locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554730U true CN207554730U (en) | 2018-06-29 |
Family
ID=62664248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721747763.8U Active CN207554730U (en) | 2017-12-14 | 2017-12-14 | A kind of differential lock of pneumatic locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554730U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372968A (en) * | 2018-12-13 | 2019-02-22 | 李世奇 | A kind of self-locking limited-slip differential |
| CN109823168A (en) * | 2019-03-30 | 2019-05-31 | 泉州市力普机械科技有限公司 | A kind of anti-pass is dynamic to separate front driving axle and its semiaxis arrangement of clutch and control method |
| CN110285202A (en) * | 2019-07-15 | 2019-09-27 | 温岭市海风差速器有限公司 | A kind of differential mechanism of pneumatic locking |
| CN110425265A (en) * | 2019-07-19 | 2019-11-08 | 金华市安索传动科技有限公司 | A kind of axis actuator and differential mechanism |
-
2017
- 2017-12-14 CN CN201721747763.8U patent/CN207554730U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372968A (en) * | 2018-12-13 | 2019-02-22 | 李世奇 | A kind of self-locking limited-slip differential |
| CN109823168A (en) * | 2019-03-30 | 2019-05-31 | 泉州市力普机械科技有限公司 | A kind of anti-pass is dynamic to separate front driving axle and its semiaxis arrangement of clutch and control method |
| CN109823168B (en) * | 2019-03-30 | 2024-04-26 | 泉州市力普机械科技有限公司 | Reverse transmission separation front drive axle, half-shaft clutch device thereof and control method |
| CN110285202A (en) * | 2019-07-15 | 2019-09-27 | 温岭市海风差速器有限公司 | A kind of differential mechanism of pneumatic locking |
| CN110285202B (en) * | 2019-07-15 | 2024-04-26 | 温岭市海风差速器有限公司 | Pneumatic locking differential mechanism |
| CN110425265A (en) * | 2019-07-19 | 2019-11-08 | 金华市安索传动科技有限公司 | A kind of axis actuator and differential mechanism |
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