CN206478219U - A kind of parking assist mechanism for AMT/EMT speed changers - Google Patents
A kind of parking assist mechanism for AMT/EMT speed changers Download PDFInfo
- Publication number
- CN206478219U CN206478219U CN201720185340.5U CN201720185340U CN206478219U CN 206478219 U CN206478219 U CN 206478219U CN 201720185340 U CN201720185340 U CN 201720185340U CN 206478219 U CN206478219 U CN 206478219U
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- Prior art keywords
- parking
- gear
- rocking arm
- shifting block
- pushing block
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- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 210000000078 claw Anatomy 0.000 claims abstract description 65
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 230000008859 change Effects 0.000 claims description 4
- 206010003671 Atrioventricular Block Diseases 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 230000001629 suppression Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Abstract
The utility model belongs to technical field of automobile transmission, is related to a kind of parking assist mechanism for AMT/EMT speed changers.The parking assist mechanism includes parking gear, rocking arm claw, gear level, the parking transmission device that rocking arm claw is engaged with parking gear can be driven in the presence of gear level, the torsion spring engaged on rocking arm claw provided with suppression rocking arm claw with parking gear; one end of rocking arm claw is fixed on case of transmission by bearing pin, and the other end being capable of the turn between parking gear and parking transmission device around bearing pin；Torsion spring is set on bearing pin, and torsion spring is fixed between rocking arm claw and case of transmission；Gear level is worm screw；Parking transmission device is provided with worm gear, worm gear and worm engaging.The parking assist mechanism structure size is small, control is simple, and locking and the release of parking gear can be controlled by controlling shifting block corner, and prevents the back transfer of power using worm and gear self-lock mechanism, improves security reliability.
Description
Technical field
The utility model belongs to technical field of automobile transmission, and in particular to a kind of auxiliary for AMT/EMT speed changers is stayed
Mechanism of car.
Background technology
At present, installed in AMT speed changers (Automated Mechanical Transmission, automatic mechanical type speed change
Case) it is auxiliary on/EMT speed changers (Electric-drive Mechanical Transmission, electric drive automatic gear-box)
Halting mechanism is helped typically there are two kinds, a kind of is the structure of Single spring, and one kind is the master of spring in double-spring structure, Single spring structure
It is to allow rocking arm claw to be in normally open to act on, and adds pin to be connected with housing in the centre position of rocking arm claw, afterbody is with convex
Wheel construction, makes ratchet complete the action pinned and unlocked by the principle of lever.The work of one of spring of double-spring structure
With being to allow rocking arm claw to be in normally open, the position of another spring is between cam is contacted with rocking arm claw, to be used as storage
Power unit, both structures are the lever principles used, and pin is added in the centre position of rocking arm claw, form the point of rotation, rocking arm card
One end of pawl is the application point with parking gear, and the drawbacks of other end is the application point with cam, this structure is due to make
With lever principle, the length of rocking arm claw all can be long, and the space of occupancy is than larger, if using cooperatively chi with controlled motor
It is very little can be bigger.In addition, cam structure does not have auto-lock function, if coordinated with controlled motor, the power on parking gear can be anti-
To being delivered in controlled motor, cause out of supply.And in the prior art, the design of many parkings is on rocking arm claw top to park tooth
When the tooth top rather than tooth root of wheel, the good solution of neither one, control is complicated.
For example, to disclose a kind of electric automobile gear device new P grades for Application No. CN201520860116 patent document
Lockable mechanism, when it has the disadvantage to carry out locking for rocking arm claw, if just tooth top rather than tooth root of the top to parking gear
When, the good solution of neither one, and it does not have auto-lock function, its parking gear may reversely drag cam and turn
Dynamic, security is low, poor reliability.
Utility model content
The purpose of this utility model is that there is provided a kind of physical dimension is small, control is simple, safety in view of the shortcomings of the prior art
The high parking assist mechanism for AMT/EMT speed changers of reliability.
The utility model solve problem technical scheme be：A kind of parking assist machine for AMT/EMT speed changers is provided
Structure, the parking assist mechanism is arranged in transmission case body, the parking assist mechanism include parking gear, can rotate after and
The rocking arm claw of parking gear engagement, gear level and rocking arm claw and parking gear can be driven in the presence of gear level
The parking transmission device of engagement, the torsion spring engaged on rocking arm claw provided with suppression rocking arm claw with parking gear, the rocking arm
One end of claw is fixed on case of transmission by bearing pin, and the other end is free end, and the free end can be around the bearing pin
The turn between parking gear and parking transmission device；The torsion spring is set on the bearing pin, and one end of the torsion spring is fixed
On rocking arm claw, the other end is fixed on case of transmission；The gear level is worm screw；The parking transmission device is provided with snail
Wheel, the worm gear and worm engaging.
Further, the parking transmission device includes pushing block, shifting block and spring, and the pushing block is fixedly connected with worm gear,
The pushing block is fixed on the positioning hole on case of transmission, and the pushing block can rotate around positioning hole together with worm gear, institute
The shifting block heart coaxial with pushing block is stated, can be relatively rotated with pushing block, the shifting block can be on pushing block around axis rotation, and the spring is set
Put between pushing block and shifting block, the pushing block can by spring drive shifting block rotate, the shifting block rotate when with rocking arm card
Push mutually the free end of pawl.
Further, the side of the free end of the rocking arm claw is provided with the pawl head being meshed with parking gear, described to shake
Be installed with a cylindrical boss above the free end of arm claw, the shifting block by cylindrical boss and rocking arm claw from
Pushed mutually by end.
Further, the front end of the pushing block is provided with a cantilever, and the cantilever and shifting block are in same plane, the spring
It is fixed between the cantilever of pushing block and shifting block, the rear end of the pushing block is provided with the stopper projection for being used for limiting shifting block rotation, institute
State cantilever and be provided with top for pacifying spring-loaded first.
Further, the shifting block be reducing plate body, the shifting block by be combined as a whole shifting block body, first increase
Footpath portion, the second diameter-increasing part composition, the shifting block body is in annular shape, and first diameter-increasing part and the second diameter-increasing part are along shifting block
The part outside of body faces out the part of extension, and first diameter-increasing part and the second diameter-increasing part are in arcuation, described second
The radius of diameter-increasing part is more than the radius of the first diameter-increasing part, and one end of second diameter-increasing part passes through circular arc and the first diameter-increasing part mistake
Cross, the other end is top provided be used to fix spring second.
Further, the parking gear is arranged on the output shaft of AMT/EMT speed changers or input shaft, can be according to sky
Between selected, when on the input shaft for be installed to speed changer, parking at this moment is needed in shelves parking；When installed in speed changer
When on output shaft, parking can be realized under any gear.
Further, it is connected again with motor after the worm screw is fixed on case of transmission by bearing, the speed changer
Housing is provided with the confined planes for being used for limiting pushing block rotation.
Further, the pushing block and worm gear are bolted to connection.
A kind of parking assist method based on the parking assist mechanism for AMT/EMT speed changers, including following step
Suddenly：
Step 1：Start motor, motor drives the positive turn of worm screw；
Step 2：Under the drive of worm screw, worm gear and pushing block are rotated clockwise together；
Step 3：The first top generation thrust compression spring on the cantilever of pushing block, the other end of spring promotes shifting block around axle
The heart is rotated clockwise；
Step 4：Shifting block promotes rocking arm claw to be rotated around bearing pin to the center of circle of parking gear, when rocking arm claw withstands park tooth
Stopped the rotation during the tooth root of wheel, locking action is completed；Due to the auto-lock function of worm and gear, it can realize and be kept when motor is powered off
The lock position of rocking arm claw, now torsion spring is by maximum pressure, because the reaction force of torsion spring makes spring be under pressure；
Step 5：The reverse turn of worm screw is driven by motor, under the drive of worm screw, worm gear and pushing block turn counterclockwise together
It is dynamic；
Step 6：The stopper projection of the rear end of pushing block promotes shifting block to rotate counterclockwise, and shifting block releases and rocking arm claw is pushed away
Power, rocking arm claw is rotated counterclockwise in the presence of torsion spring, is deviate from from parking gear, when the cantilever contacts of pushing block are to speed changer
Stopped operating during the confined planes of housing, unlocking motion is completed.
Further, in the step (4), when rocking arm claw smoothly can not be embedded in the teeth groove of parking gear, pushing block
Rotation, compression spring, spring energy storage, if vehicle is in level ground, rocking arm claw can not smoothly be embedded in the tooth of parking gear
Groove, on vehicle safety and latch functions without influence, if vehicle is on slope, vehicle under Action of Gravity Field due to along under slope
It is sliding, when vehicle is slided, parking gear with AMT/EMT gearboxes input shaft or output shaft rotation, when the pawl head of rocking arm claw
When being directed at the tooth root of parking gear, spring promotes shifting block that rocking arm claw is caught in into parking gear, and locking action is completed；
Further, in the step (4), when locking, which is acted, to be completed, the stopper projection top of the rear end of the pushing block
Firmly one end of the first diameter-increasing part of shifting block, can so prevent that extreme position is gone out in shifting block rotation under the action of the spring.
Further, in the step (6), when unlocking motion is completed, the torsion spring is still in pressured state, spring
In natural length, so it is able to ensure that rocking arm claw is in disengaged condition.
The beneficial effects of the utility model are：
1st, in the prior art, if during the rocking arm claw locking of parking assist structure just top to parking gear tooth top without
When being tooth root, the good solution of neither one, the spring in the utility model is an energy storage equipment, when rocking arm claw
When withstanding on the tooth top of parking gear, pushing block still rotates to specified location, and at this moment spring is by compress energy storage, when vehicle is slided
When be caught in the tooth root of parking gear at once, so control is simpler；
2nd, the cam structure used in halting mechanism of the prior art, its parking gear may reversely drag cam and turn
Dynamic, the worm gear structure in the utility model has auto-lock function in itself, can only worm screw drive worm gear wheel, worm gear can not band
Dynamic worm screw rotates；
3rd, parking assist technology of the prior art has used lever principle, and the direction that moves forward and backward of cam formation is with shaking
The action direction of arm claw dop is on the contrary, this physical dimension is than larger, the direction of motion and rocking arm card of the formation of the design cam
The direction of motion of pawl is consistent, and structure is compacter；
4th, the utility model can control locking and the release of parking gear by controlling shifting block corner, and utilize worm gear
Worm screw self-lock mechanism prevents the back transfer of power, and the safety and reliability of parking assist mechanism greatly improved.
Brief description of the drawings
Fig. 1 is the structural representation of the parking assist mechanism described in the utility model for AMT/EMT speed changers；
Fig. 2 is the structural representation of the shifting block shown in Fig. 1；
Fig. 3 is showing when the parking assist mechanism described in the utility model for AMT/EMT speed changers is in released state
It is intended to；
Fig. 4 is showing when the parking assist mechanism described in the utility model for AMT/EMT speed changers is in lockup state
It is intended to；
Fig. 5 is that the rocking arm claw of the parking assist mechanism described in the utility model for AMT/EMT speed changers withstands parking
The schematic diagram of state during the tooth top of gear.
In figure：1- parking gears；2- bearing pins；3- rocking arm claws；4- torsion springs；5- shifting blocks, 51- shifting block bodies, 52- first increases
Footpath portion, the diameter-increasing parts of 53- second, 54- second is top；6- springs；7- pushing blocks, 71- cantilevers, 72- stopper projections, 73- first is pushed up
Point；8- worm gears；9- worm screws.
Embodiment
With reference to the accompanying drawings and detailed description, the utility model is further described.
As Figure 1-Figure 5, a kind of parking assist mechanism for AMT/EMT speed changers, the parking assist mechanism is set
Put in case of transmission (not shown), the parking assist mechanism include parking gear 1, can rotate after with parking gear 1
The rocking arm claw 3 of engagement, gear level and it can drive what rocking arm claw 3 was engaged with parking gear 1 in the presence of gear level
Parking transmission device, the torsion spring 4 engaged on rocking arm claw 3 provided with suppression rocking arm claw 3 with parking gear 1, the rocking arm card
One end of pawl 3 is fixed on case of transmission by bearing pin 2, and the other end is free end, and the free end can be around the bearing pin 2
The turn between parking gear 1 and parking transmission device；The torsion spring 4 is set on the bearing pin 2, one end of the torsion spring 4
It is fixed on rocking arm claw 3, the other end is fixed on case of transmission；The gear level is worm screw 9；The parking transmission device
Provided with worm gear 8, the worm gear 8 is engaged with worm screw 9.
The parking transmission device includes pushing block 7, shifting block 5 and spring 6, and the pushing block 7 is fixedly connected with worm gear 8, described
Pushing block 7 is fixed on the positioning hole on case of transmission, and the pushing block 7 can rotate around positioning hole together with worm gear 8, described
Shifting block 5 and the coaxial heart of pushing block 7, can be relatively rotated, the shifting block 5 can be on pushing block 7 around axis rotation, the bullet with pushing block 7
Spring 6 is arranged between pushing block 7 and shifting block 5, and the pushing block 7 can drive shifting block 5 to rotate by spring 6, and the shifting block 5 is being rotated
When pushed mutually with the free end of rocking arm claw 3.
The side of the free end of the rocking arm claw 3 is provided with the pawl head being meshed with parking gear 1, the rocking arm claw 3
Free end above be installed with a cylindrical boss, the shifting block 5 passes through the free end of cylindrical boss and rocking arm claw 3
Push mutually.
The front end of the pushing block 7 is provided with a cantilever 71, and the cantilever 71 and shifting block 5 are in same plane, and the spring 6 is consolidated
It is scheduled between the cantilever 71 of pushing block 7 and shifting block 5, the rear end of the pushing block 7 is provided with the stopper projection for being used for limiting the rotation of shifting block 5
72, the cantilever 71, which is provided with, to be used to install the first top 73 of spring 6.
The shifting block 5 is the plate body of reducing, and the shifting block 5 is by the shifting block body 51, the first diameter-increasing part that are combined as a whole
52nd, the second diameter-increasing part 53 is constituted, and the shifting block body 51 is in annular shape, the diameter-increasing part 53 of the first diameter-increasing part 52 and second
The part of extension is faced out along the part outside of shifting block body 51, the diameter-increasing part 53 of the first diameter-increasing part 52 and second is in arc
Shape, the radius of second diameter-increasing part 53 is more than the radius of the first diameter-increasing part 52, and one end of second diameter-increasing part 53 passes through circle
Arc and the transition of the first diameter-increasing part 52, the other end, which is provided with, to be used to fix the second top 54 of spring 6.
The parking gear 1 is arranged on the output shaft of AMT/EMT speed changers or input shaft, can be selected according to space
Select, when on the input shaft for be installed to speed changer, parking at this moment is needed in shelves parking；When on the output shaft installed in speed changer
When, parking can be realized under any gear.
The worm screw 9 is connected with motor (not shown) again after being fixed on by bearing on case of transmission, the speed change
Device housing is provided with the confined planes for being used for limiting the rotation of pushing block 7.
The pushing block 7 and worm gear 8 are bolted to connection.
A kind of parking assist method based on the parking assist mechanism for AMT/EMT speed changers, including following step
Suddenly：
Step 1：Start motor, motor drives the positive turn of worm screw 9；
Step 2：Under the drive of worm screw 9, worm gear 8 and pushing block 7 are rotated clockwise together；
Step 3：First top 73 on the cantilever 71 of pushing block 7 produces thrust compression spring 6, and the other end of spring 6 is promoted
Shifting block 5 is rotated clockwise around axle center；
Step 4：Shifting block 5 promotes rocking arm claw 3 to be rotated around bearing pin 2 to the center of circle of parking gear 1, when rocking arm claw 3 is withstood
Stopped the rotation during the tooth root of parking gear 1, locking action is completed；Due to the auto-lock function of worm and gear, it can realize disconnected in motor
The lock position of rocking arm claw 3 is kept when electric, now torsion spring 4 is by maximum pressure, because the reaction force of torsion spring 4 makes spring 6
It is under pressure；
Step 5：The reverse turn of worm screw 9 is driven by motor, under the drive of worm screw 9, worm gear 8 and pushing block 7 inverse time together
Pin is rotated；
Step 6：The stopper projection 72 of the rear end of pushing block 7 promotes shifting block 5 to rotate counterclockwise, and shifting block 5 is released to rocking arm card
The thrust of pawl 3, rocking arm claw 3 is rotated counterclockwise in the presence of torsion spring 4, is deviate from from parking gear 1, when the cantilever of pushing block 7
71 are stopped operating when touching the confined planes of case of transmission, and unlocking motion is completed.
In the step (4), when rocking arm claw 3 smoothly can not be embedded in the teeth groove of parking gear 1, pushing block 7 rotates, pressure
Contracting spring 6, spring 6 stores power, if vehicle is in level ground, rocking arm claw 3 can not smoothly be embedded in the teeth groove of parking gear 1,
On vehicle safety and latch functions without influence, if vehicle is on slope, vehicle glide due under Action of Gravity Field along slope,
When vehicle is slided, parking gear 1 with AMT/EMT gearboxes input shaft or output shaft rotation, when the pawl head pair of rocking arm claw 3
During the tooth root of quasi- parking gear 1, spring 6 promotes shifting block 5 that rocking arm claw 3 is caught in into parking gear 1, and locking action is completed；
In the step (4), when locking, which is acted, to be completed, the stopper projection 72 of the rear end of the pushing block 7 withstands shifting block 5
The first diameter-increasing part 52 one end, can so prevent spring 6 act under shifting block 5 rotation go out extreme position.
In the step (6), when unlocking motion is completed, the torsion spring 4 is still in pressured state, and spring 6 is in certainly
Right length, is so able to ensure that rocking arm claw 3 is in disengaged condition.
The utility model is not limited to above-mentioned embodiment, in the case of without departing substantially from the utility model substantive content, this
Any deformation that art personnel are contemplated that, improvement, replace and each fall within protection domain of the present utility model.
Claims (7)
1. a kind of parking assist mechanism for AMT/EMT speed changers, the parking assist mechanism is arranged in transmission case body,
The parking assist mechanism includes parking gear, can rotate after engaged with parking gear rocking arm claw, gear level and changing
The parking transmission device that rocking arm claw can be driven to be engaged with parking gear in the presence of pin, it is characterised in that in rocking arm card
Pawl is provided with the torsion spring that rocking arm claw is engaged with parking gear is suppressed, and one end of the rocking arm claw is fixed on speed change by bearing pin
On device housing, the other end is free end, and the free end can be around the bearing pin between parking gear and parking transmission device
Turn；The torsion spring is set on the bearing pin, and one end of the torsion spring is fixed on rocking arm claw, and the other end is fixed on speed change
On device housing；The gear level is worm screw；The parking transmission device is provided with worm gear, the worm gear and worm engaging.
2. the parking assist mechanism according to claim 1 for AMT/EMT speed changers, it is characterised in that the parking
Transmission device includes pushing block, shifting block and spring, and the pushing block is fixedly connected with worm gear, and the pushing block is fixed on case of transmission
Positioning hole, the pushing block can and worm gear be rotated together around positioning hole, the shifting block heart coaxial with pushing block, the shifting block
Can be on pushing block around axis rotation, the spring is arranged between pushing block and shifting block, and the pushing block can be driven by spring
Shifting block is rotated, and the shifting block is pushed mutually when rotating with the free end of rocking arm claw.
3. the parking assist mechanism according to claim 2 for AMT/EMT speed changers, it is characterised in that the rocking arm
The side of the free end of claw is provided with above the pawl head being meshed with parking gear, the free end of the rocking arm claw and is installed with
One cylindrical boss, the shifting block is pushed mutually by the free end of cylindrical boss and rocking arm claw.
4. the parking assist mechanism according to claim 2 for AMT/EMT speed changers, it is characterised in that the pushing block
Front end provided with cantilever, the cantilever and shifting block in same plane, the spring be fixed on pushing block cantilever and shifting block it
Between, the rear end of the pushing block is provided with the stopper projection for being used for limiting shifting block rotation, and the cantilever, which is provided with, to be used to install spring
It is first top.
5. the parking assist mechanism according to claim 2 for AMT/EMT speed changers, it is characterised in that the shifting block
For the plate body of reducing, the shifting block is made up of the shifting block body, the first diameter-increasing part, the second diameter-increasing part being combined as a whole, described
Shifting block body is in annular shape, and first diameter-increasing part and the second diameter-increasing part are to face out to prolong along the part outside of shifting block body
The part of exhibition, first diameter-increasing part and the second diameter-increasing part are in arcuation, and the radius of second diameter-increasing part is more than first and increases footpath
The radius in portion, one end of second diameter-increasing part is by circular arc and the first diameter-increasing part transition, and the other end, which is provided with, to be used to fix spring
It is second top.
6. the parking assist mechanism according to claim 1 for AMT/EMT speed changers, it is characterised in that the parking
Gear is arranged on the output shaft of AMT/EMT speed changers or input shaft, and the worm screw is fixed on case of transmission by bearing
It is connected again with motor afterwards, the case of transmission is provided with the confined planes for being used for limiting pushing block rotation.
7. the parking assist mechanism according to claim 2 for AMT/EMT speed changers, it is characterised in that the pushing block
It is bolted to connection with worm gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720185340.5U CN206478219U (en) | 2017-02-28 | 2017-02-28 | A kind of parking assist mechanism for AMT/EMT speed changers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720185340.5U CN206478219U (en) | 2017-02-28 | 2017-02-28 | A kind of parking assist mechanism for AMT/EMT speed changers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206478219U true CN206478219U (en) | 2017-09-08 |
Family
ID=59747242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720185340.5U Expired - Fee Related CN206478219U (en) | 2017-02-28 | 2017-02-28 | A kind of parking assist mechanism for AMT/EMT speed changers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206478219U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641243A (en) * | 2017-02-28 | 2017-05-10 | 南京越博动力系统股份有限公司 | Auxiliary parking mechanism for automated manual transmission/electric-drive mechanical transmission (AMT/EMT) and parking method of auxiliary parking mechanism |
| CN107725642A (en) * | 2017-09-13 | 2018-02-23 | 深圳市卓博机器人有限公司 | Motor power-off brake device and motor |
| CN108098724A (en) * | 2017-12-25 | 2018-06-01 | 陈豪 | A kind of rotation clamping type lathe tool storage rack |
| CN111379854A (en) * | 2018-12-28 | 2020-07-07 | 舍弗勒技术股份两合公司 | Parking locking system |
-
2017
- 2017-02-28 CN CN201720185340.5U patent/CN206478219U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641243A (en) * | 2017-02-28 | 2017-05-10 | 南京越博动力系统股份有限公司 | Auxiliary parking mechanism for automated manual transmission/electric-drive mechanical transmission (AMT/EMT) and parking method of auxiliary parking mechanism |
| CN107725642A (en) * | 2017-09-13 | 2018-02-23 | 深圳市卓博机器人有限公司 | Motor power-off brake device and motor |
| CN107725642B (en) * | 2017-09-13 | 2024-02-02 | 深圳市卓博机器人有限公司 | Motor outage brake equipment and motor |
| CN108098724A (en) * | 2017-12-25 | 2018-06-01 | 陈豪 | A kind of rotation clamping type lathe tool storage rack |
| CN111379854A (en) * | 2018-12-28 | 2020-07-07 | 舍弗勒技术股份两合公司 | Parking locking system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170908 |