CN207195645U - A kind of automatically controlled lock shaft device of gearbox for parking system - Google Patents
A kind of automatically controlled lock shaft device of gearbox for parking system Download PDFInfo
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- CN207195645U CN207195645U CN201721192666.7U CN201721192666U CN207195645U CN 207195645 U CN207195645 U CN 207195645U CN 201721192666 U CN201721192666 U CN 201721192666U CN 207195645 U CN207195645 U CN 207195645U
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- push rod
- claw
- jacking block
- ratchet
- parking
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Abstract
The utility model provides a kind of automatically controlled lock shaft device of gearbox for parking system, parking drive shaft including the ratchet, claw and the push rod assembly that are arranged at gear shifting actuating mechanism outside gearbox, are arranged at transmission internal and for connecting push rod assembly and gear shifting actuating mechanism, the ratchet is connected with the power transmission shaft in gearbox, and the claw around its some rotary oscillation in middle part and can be provided with the engaging tooth with ratchet teeth groove clamping in its one end；The push rod assembly includes push rod and the push rod allocating slot, locking spring, jacking block and the limit shaft sleeve that are sequentially sleeved on push rod, the push rod allocating slot can extrude locking spring under the drive of shifting block and then promote jacking block movement, the other end of the claw is arranged on the moving direction of jacking block and the end tilts under the push effect of jacking block, and then realizes connecting and fixing between claw and ratchet.The apparatus structure is simplified and transmission efficiency, has locking reliably and unlocks the characteristics of smooth, its scalability is strong, easy to utilize.
Description
Technical field
Brake system of car technical field is the utility model is related to, in particular it relates to a kind of speed change for parking system
The automatically controlled lock shaft device of case.
Background technology
Vehicle parking system is generally divided into hand brake system and P gear systems, and hand brake system is by tensing drag-line with locking car
Take turns and then realize and brake anti-slip function, but be possible in long-term use to occur drag-line and loosen or even the situation of fracture, if
The parking on ramp and there is failure and vehicle will be caused slidably uncontrolled in parking brake, very big potential safety hazard be present.P
Gear system is used for avoiding the appearance of the risk as the supplement of parking brake function, P gears be by claw and power transmission shaft be rigidly connected from
And the power transmission shaft in locking gearbox makes wheel not roll, there is extreme high reliability.
For traditional manual-gear vehicle, parking is generally carried out using parking brake, it is necessary to can be put out in engine during long-term parking
Fiery relief gearbox is linked into driving gear, using engine braking, will not also be rolled even if parking brake failure wheel when on ramp
It is dynamic；And most automatic catch automobiles wheel under flameout state separates with engine crankshaft, new-energy automobile generally by
Motor direct-drive, also brake force can not be provided to wheel under parked state, therefore, automatic catch vehicle and new-energy automobile lead to
Chang Douhui is equipped with P gear parking systems, so as to prevent the appearance of above mentioned problem.
Lock shaft device on the market has the disadvantage that at present：1st, mostly using cam or connecting rod as drive mechanism, pass
Flowing mode is single, and structure extension is not strong, is not suitable for being applied to all kinds of vehicles；2nd, cam and bar linkage structure, which exist, is difficult to
The problem of reliable self-locking, because to realize reliable self-locking, it is necessary to cam or connecting rod is crossed at phase to the reverse arm of force, due to
System is designing and is certainly existing error in manufacturing process, may cross the problem of phase is more in the presence of some monomers, and then lead
The risk that the reverse arm of force is excessive, self-lock force is also excessive, and parking system presence can not be unlocked smoothly is caused, influences traffic safety.
Utility model content
The purpose of this utility model be to provide it is a kind of it is simple in construction, locking is reliable, the change that unblock is smooth, scalability is strong
Fast case lock shaft device, to solve the problems, such as to propose in background technology.
To achieve the above object, the utility model provides a kind of automatically controlled lock shaft device of the gearbox for parking system,
Including the ratchet, claw and the push rod assembly that are arranged at gear shifting actuating mechanism outside gearbox, are arranged at transmission internal and
For realizing the parking drive shaft to be linked between the push rod assembly and gear shifting actuating mechanism, the ratchet and any in gearbox
Power transmission shaft is connected, and the claw includes corpus unguis and the claw axle being arranged in the middle part of the corpus unguis length direction so that corpus unguis is grown
Rotary oscillation up and down can be put centered on corpus unguis and claw shaft connection place by spending the both ends in direction, and another when wherein one end upwarps
End is fallen, and the engaging tooth that clamping is matched with the ratchet teeth groove is provided with one end of the corpus unguis；
The gear shifting actuating mechanism includes shift motor and the driving with the screw axis linkage setting of the shift motor
Gear, one end that transmission internal is located in the parking drive shaft is provided with shifting block, and the other end of parking drive shaft inserts
Link inside the gear shifting actuating mechanism and with drive gear and set；
The push rod assembly includes push rod and the locking spring, jacking block and the limit shaft that are sequentially sleeved on the push rod
Set, the sliding structure that the push rod is arranged to move along push rod length direction adjacent to the one end in locking spring direction, and should
Sliding structure be directly or indirectly connected with the shifting block and locking spring can be extruded under the drive of shifting block so promote described in
Jacking block moves on push rod, and the other end of the claw is arranged on pushing of on the moving direction of the jacking block and end in jacking block
Effect is lower to tilt, and then realizes connecting and fixing between engagement increment and the ratchet of the claw.
Preferably, the sliding structure is indirectly connected with shifting block, and the push rod assembly also includes being set in the slip
Push rod allocating slot in formula structure, one end of the shifting block be arranged in the push rod allocating slot and with its clamping, pass through the shifting block
Rotation drives the push rod allocating slot to move along a straight line, and then drives the sliding structure to extrude locking spring and top successively
Block.
Preferably, the claw axle is connected with gear box casing and is vertically arranged with the length direction of the corpus unguis, described
Claw also includes being set in unblock spring on the claw axle, the both ends of the unblock spring respectively with the corpus unguis and speed change
Tank shell is fixedly connected.
Preferably, one end of the parking drive shaft, which is fixed, inserts in the connecting hole of the drive gear, and the connecting hole
Be shaped as it is non-circular or the connecting hole be shaped as circle and the parking drive shaft end set have for clamping connect
Connect the buckle in hole.
Preferably, the gear shifting actuating mechanism also includes being used to realize to sliding tooth in the case of shift motor is cold
Take turns manually operated manual actuation interface.
Preferably, the gear shifting actuating mechanism also includes being used for the angle sensing for identifying drive gear real time rotation angle
Device, or from the shift motor for carrying angle detection function model, in order to feed back the working condition of vehicle parking system in time.
Preferably, the contact surface between the jacking block and the claw can be two cambered surfaces or two inclined-planes or a cambered surface one
Individual inclined-plane, collsion damage and the fatigue-relieving damage of the two contact site can be avoided, and can be by adjusting the circular arc of contact surface
Size or angle of inclination are to realize different gearratios.
Technical scheme provided by the utility model at least has the advantages that：
The lock shaft device structure is simplified and transmission efficiency, has locking reliably and unlocks the characteristics of smooth, it can expand
Malleability is strong, has many places structure to carry out individually designed and adjustment gearratio, is conveniently applied to all types of automatic catch automobiles
Parking system；
The lock shaft device drives and carries manual actuation interface, and user can be in the case of motor be cold to drive gear
Rotation be operated manually, and then realize and the locking of gearbox intermediate solid drive shaft or unblock operated solve because of motor failure
The risk that automobile caused by and can not be moved or braked, there is practicality.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings discussed below is only some implementations of the present utility model
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Other accompanying drawings are obtained, wherein：
Fig. 1 is the dimensional structure diagram of lock shaft device described in the utility model；
Fig. 2 is the front view of lock shaft device shown in Fig. 1；
Fig. 3 is the A-A of lock shaft device shown in Fig. 2 to sectional view；
Fig. 4 is the structural representation of the gear shifting actuating mechanism of lock shaft device shown in Fig. 1；
Structural representation when Fig. 5 is the jacking block of lock shaft device shown in Fig. 3 and claw uses different contact surfaces；In Fig. 5 (a)
Schematic diagram of the contact surface between the corpus unguis of jacking block and claw for two cambered surfaces is represented, (b) is represented between the corpus unguis of jacking block and claw
Contact surface is the schematic diagram of an inclined-plane and a periphery, and (c) represents that the contact surface between the corpus unguis of jacking block and claw is one
The schematic diagram on inclined-plane and a cambered surface；
Structural representation when Fig. 6 is the push rod of lock shaft device shown in Fig. 3 and shifting block uses different connected modes；
In figure：1 ratchet, 2 claws, 3 push rods, 4 push rod allocating slots, 5 locking springs, 6 jacking blocks, 7 limit shaft sleeves, 8 shifting blocks, 9 change
Keep off executing agency, 10 parking drive shafts；21 claw axles, 22 corpus unguis, 23 unblock springs, 24 hook hole；31 sliding structures；91 gearshifts
Motor, 92 drive gears, 93 manual actuation interfaces, 94 angle inductors.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1-Fig. 4, a kind of automatically controlled lock shaft device of gearbox for parking system, including be arranged at outside gearbox
Gear shifting actuating mechanism 9, be arranged at transmission internal ratchet 1, claw 2 and push rod assembly and for realizing the push rod
The parking drive shaft 10 to be linked between assembly and gear shifting actuating mechanism 9.
Cylindrical in the ratchet 1 is designed with multiple equally distributed teeth groove in interval, and the endoporus of the ratchet 1 passes through flower
Key is connected with any power transmission shaft in gearbox, and the claw 2 includes corpus unguis 22 and is arranged at the length direction of corpus unguis 22
The claw axle 21 at middle part so that the both ends of corpus unguis length direction can be put rotation up and down centered on corpus unguis and claw shaft connection place and be put
It is dynamic, and when wherein one end upwarps and the other end falls, be provided with one end of the corpus unguis 22 and match card with the teeth groove of ratchet 1
The engaging tooth connect.The back lash between the claw 2 and ratchet 1 can be adjusted by the width for adjusting teeth groove, i.e. gap
Bigger, the ratchet 1 and the critical speed value that claw 2 smoothly engages are higher.
The claw axle 21 is connected and is vertically arranged with the length direction of the corpus unguis 22, the claw with gear box casing
2 also fix including the unblock spring 23 being set on the claw axle 21, one end of the unblock spring 23 with gear box casing
Connection and the other end is fixedly connected with the hook hole 24 being arranged on the corpus unguis 22, it is described unblock spring 23 conduct torsion spring structure,
Can be that claw provides its restoring force resetted enough in itself.
The gear shifting actuating mechanism 9 includes shift motor 91, the drive with the screw axis linkage setting of the shift motor 91
Moving gear 92, the manual actuation interface manually operated to drive gear 92 for the realization in the case of shift motor 91 is cold
93 and for identifying the angle inductor 94 of the real time rotation angle of drive gear 92, can be true by the angle inductor 94
Recognize whether parking target is reached.In the present embodiment, the manual actuation interface 93 stretches out shell for the screw axis of shift motor 91
External one end, and flat recess or cross recess are provided with the end face at the end, in order to which instrument inserts and passes through screw axis
Drive gear 92 is driven to rotate so that user can manually implemented locking or unblock operation in the case of motor is cold.
One end of the parking drive shaft 10 is passed to transmission internal and shifting block 8 is fixedly installed at the end, and parking is driven
The other end of moving axis 10 inserts the inside of gear shifting actuating mechanism 9 and is connected with the connecting hole of drive gear 92, due to connecting herein
Connect requirement and be reduced as far as gap to avoid influenceing rotary drive, ensure that parking drive shaft 10 can be extracted easily again, because
This, being shaped as the connecting hole of drive gear 92 is non-circular, and the connecting hole is triangle in the present embodiment.The design is easy to
Parking system carries out modularized design, and gear shifting actuating mechanism 9 individually can be manufactured and tested, and be advantageous to simplify production procedure simultaneously
Improve production efficiency.
The push rod assembly include push rod 3 and be sequentially sleeved on the push rod 3 push rod allocating slot 4, locking spring 5,
Jacking block 6 and limit shaft sleeve 7, the push rod 3 are arranged to what can be moved along push rod length direction adjacent to the one end in the direction of locking spring 5
Sliding structure 31, and the push rod allocating slot 4 is set on the sliding structure 31, one end of the shifting block 8 is arranged at institute
State in push rod allocating slot 4 and with its clamping.Under the drive of the shifting block 8, the push rod allocating slot 4 is extruded by sliding structure 31
Locking spring 5 and then the jacking block 6 is promoted to be moved on push rod 3, the other end of the claw 2 is arranged on the shifting of the jacking block 6
On dynamic direction and the end tilts under the push effect of jacking block 6, and then realizes the engagement increment of the claw 2 and the ratchet 1
Between connect and fix.
Referring to Fig. 5, the contact surface form between the jacking block 6 and the claw 2 may be designed to a variety of different schemes：Scheming
In 5 (a), the jacking block of the present embodiment and the contact surface of claw are cambered surface；In Fig. 5 (b), the jacking block and card of another embodiment
The contact surface of pawl is respectively inclined-plane and arc surface；In Fig. 5 (c), the jacking block of the 3rd embodiment and the contact surface difference of claw
For inclined-plane and cambered surface.Above-described embodiment can effectively avoid the collsion damage of the two contact site and fatigue-relieving damage, and can
Different gearratios is realized by adjusting circular arc size or the angle of inclination of contact surface.
Referring to Fig. 6, the connected mode between the push rod 3 and the shifting block 8 may be designed to a variety of different schemes：In Fig. 6
(a) in, the shifting block lower end of the present embodiment and the clamping position of push rod allocating slot are rotatable circular configuration, be may be designed in not
The circular configuration of rotation；In Fig. 6 (a), another embodiment is not provided with the sliding structure of push rod allocating slot, i.e. shifting block and push rod
Directly contact and the engaging tooth being mutually matched is provided with the contact position of the two；In Fig. 6 (a), the 3rd embodiment
Shifting block is the yoke of lower ending opening, and the horizontal bearing pin with yoke opening clamping is fixedly installed in push rod allocating slot.For upper
Design is stated, different gearratios can be realized by adjusting the distance of contact point and the pivot of shifting block 8.
The course of work of the lock shaft device is as follows：
When parking system is started working, shift motor 91 drives drive gear 92 to rotate through proper angle, and by
Car drive shaft 10 drives shifting block 8 to rotate, and the rotary motion of shifting block 8 is converted to the linear motion of push rod allocating slot 4, and is pushed away by driving
Sliding structure 31 on bar 3 compresses locking spring 5 to promote jacking block 6 constantly to move forward, until jacking block 6 and the one of claw 2
End in contact simultaneously jacks up the end, and the other end of claw 2 then accordingly declines, and is arranged on the engaging tooth and ratchet 1 at the end
Teeth groove matching engagement, because ratchet 1 can not continue to rotate, the power transmission shaft where ratchet will be locked out；The claw 2 now rotated
To power and its compress energy storage is made to unblock spring 23.
When parking system is stopped, shift motor 91 drives drive gear 92 to rotate backward, and is driven by parking
Axle 10 drives shifting block 8 to turn round, and the stress of the now counter motion under the drive of shifting block 8 of push rod allocating slot 4, i.e. locking spring 5 reduces,
Also motive force will not produced to jacking block 6, now claw 2 replys initial position, i.e. claw band under the drive of unblock spring 23
The one end for having engaging tooth tilts and separated with ratchet 1, and the other end declines and promotes jacking block 6 back to move.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits patent protection model of the present utility model
Enclose, for those skilled in the art, the utility model there can be various modifications and variations.In spirit of the present utility model
Within principle, every any improvement made using the utility model specification and accompanying drawing content or equivalent substitution, directly or
Other related technical fields are used in indirectly, all should be included in scope of patent protection of the present utility model.
Claims (7)
1. the automatically controlled lock shaft device of a kind of gearbox for parking system, it is characterised in that including being arranged at outside gearbox
Gear shifting actuating mechanism (9), the ratchet (1) for being arranged at transmission internal, claw (2) and push rod assembly and described for realizing
The parking drive shaft (10) to be linked between push rod assembly and gear shifting actuating mechanism (9), the ratchet (1) and any biography in gearbox
Moving axis is connected, and the claw (2) includes corpus unguis (22) and the claw axle being arranged in the middle part of the corpus unguis (22) length direction
(21) so that the both ends of corpus unguis length direction can put rotary oscillation, and wherein up and down centered on corpus unguis and claw shaft connection place
Other end whereabouts when one end upwarps, is provided with one end of the corpus unguis (22) and matches clamping with the ratchet (1) teeth groove
Engaging tooth；
The gear shifting actuating mechanism (9) includes shift motor (91) and set with the screw axis linkage of the shift motor (91)
Drive gear (92), be provided with shifting block (8) in one end that the parking drive shaft (10) is located at transmission internal, and parking is driven
The other end of moving axis (10) inserts gear shifting actuating mechanism (9) inside and linked with drive gear (92) and set；
The push rod assembly include push rod (3) and be sequentially sleeved on the push rod (3) locking spring (5), jacking block (6) and
Limit shaft sleeve (7), the one end in neighbouring locking spring (5) direction of the push rod (3) are arranged to what can be moved along push rod length direction
Sliding structure (31), and the sliding structure (31) is directly or indirectly connected and can be in the band of shifting block (8) with the shifting block (8)
Locking spring (5) is extruded under dynamic and then promotes the jacking block (6) to be moved on push rod (3), the other end of the claw (2) is set
On the moving direction of the jacking block (6) and the end tilts under the push effect of jacking block (6), and then realizes the claw (2)
Engagement increment and the ratchet (1) between connect and fix.
2. lock shaft device according to claim 1, it is characterised in that the sliding structure (31) is indirect with shifting block (8)
Connection, the push rod assembly also include the push rod allocating slot (4) being set on the sliding structure (31), the shifting block (8)
One end be arranged in the push rod allocating slot (4) and with its clamping, pass through the shifting block (8) rotation and drive the push rod allocating slot (4)
Move along a straight line, and then drive the sliding structure (31) to extrude locking spring (5) and jacking block (6) successively.
3. lock shaft device according to claim 2, it is characterised in that the claw axle (21) and gear box casing be connected and
It is vertically arranged with the length direction of the corpus unguis (22), the claw (2) also includes the solution being set on the claw axle (21)
Spring (23) is locked, the both ends of the unblock spring (23) are fixedly connected with the corpus unguis (22) and gear box casing respectively.
4. lock shaft device according to claim 3, it is characterised in that insertion is fixed in one end of the parking drive shaft (10)
In the connecting hole of the drive gear (92), and the connecting hole be shaped as it is non-circular or the connecting hole be shaped as circle and
The end set of the parking drive shaft (10) has the buckle for clamping connecting hole.
5. lock shaft device according to claim 4, it is characterised in that the gear shifting actuating mechanism (9) also includes being used for
The manual actuation interface (93) manually operated to drive gear (92) is realized in the case of shift motor (91) is cold.
6. lock shaft device according to claim 5, it is characterised in that the gear shifting actuating mechanism (9) also includes being used to know
The angle inductor (94) of other drive gear (92) real time rotation angle, or from the gearshift electricity for carrying angle detection function model
Machine, in order to feed back the working condition of vehicle parking system in time.
7. according to the lock shaft device described in any one in claim 1-6, it is characterised in that the jacking block (6) and the card
Contact surface between pawl (2) can be one inclined-plane of two cambered surfaces or two inclined-planes or a cambered surface, can avoid the two contact site
Collsion damage and fatigue-relieving damage, and different biographies can be realized by adjusting circular arc size or the angle of inclination of contact surface
Dynamic ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721192666.7U CN207195645U (en) | 2017-09-18 | 2017-09-18 | A kind of automatically controlled lock shaft device of gearbox for parking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721192666.7U CN207195645U (en) | 2017-09-18 | 2017-09-18 | A kind of automatically controlled lock shaft device of gearbox for parking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207195645U true CN207195645U (en) | 2018-04-06 |
Family
ID=61789461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721192666.7U Active CN207195645U (en) | 2017-09-18 | 2017-09-18 | A kind of automatically controlled lock shaft device of gearbox for parking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207195645U (en) |
-
2017
- 2017-09-18 CN CN201721192666.7U patent/CN207195645U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191025 Address after: 412000 Ming day road, Tianyuan District, Zhuzhou, Hunan Province, No. 10 Patentee after: Zhuzhou Gearings Co., Ltd. Address before: 412000, Zhuzhou, Hunan province Tianyuan District Pearl River North Road chestnut rain Industrial Park Patentee before: Zhuzhou Accurate Drive Train Co., Ltd. |
|
| TR01 | Transfer of patent right |