CN205064652U - Clutch / stopper integration assembly - Google Patents
Clutch / stopper integration assembly Download PDFInfo
- Publication number
- CN205064652U CN205064652U CN201520784752.1U CN201520784752U CN205064652U CN 205064652 U CN205064652 U CN 205064652U CN 201520784752 U CN201520784752 U CN 201520784752U CN 205064652 U CN205064652 U CN 205064652U
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- Prior art keywords
- clutch
- oil
- axle sleeve
- brake
- piston
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Abstract
The utility model discloses a clutch / stopper integration assembly mainly comprises integration clutch drum, clutch hub, input shaft, braking and separation and reunion friction subassembly, oil feed axle sleeve, pneumatic cylinder, piston, return spring, spring holder, R type piston ring sealing ring and O type sealing washer etc.. Integration clutch drum connects firmly together with the pneumatic cylinder, and the pneumatic cylinder supports on the oil feed axle sleeve through two bearing, and piston, return spring and spring holder are installed in the pneumatic cylinder, and clutch drum right -hand member and input shaft are connected to separation and reunion friction subassembly, and clutch drum left end and oil feed axle sleeve are connected to the braking friction subassembly, and R type piston ring is installed in the annular of oil feed axle sleeve. Two kinds of functions of separation and reunion and braking can be realized with the separation to joint through the two sets of frictions of hydraulic system control are vice, and the suitable cooperation of the two can realize power and shift, and have compact structure, small, advantage such as part number few to integrated in an organic whole with two sets of wet -type multi -discs friction countershaft.
Description
Technical field
The utility model relates to automatic gearshift, particularly relates to a kind of clutch/brake integration assembly.
Background technique
At present, along with the aggravation of the energy and environmental problem, electric vehicle obtains and develops fast, possess wide popularizing application prospect, and transmission system is critical component wherein.Performance characteristic due to drive motor makes Present Domestic be that the fixed speed ratio retarder that electric motor car mates cannot make drive motor more operate in efficient district, reduces power character and the Economy of electric motor car.Therefore, each enterprise, mechanism, universities and colleges propose electric motor car two-shift automatic speed variator scheme one after another.And the core of two-shift automatic speed variator is automatic gear shift actuating mechanism and control gear thereof, in prior art, mainly contain the form adopting motor-driven shift fork+synchronizer or hydraulic drive type shift fork+synchronizer.
Publication number is the two-shift automatic speed variator that the Chinese patent of CN102182801A discloses a kind of electric vehicle, structure principle chart as shown in Figure 1, the tongue axle that its automatic gear shift apparatus comprises synchronizer (19) and driven by shift motor, (19) are provided with a shifting fork bar with synchronizer, shifting fork bar has a shift fork contact, synchronizer is arranged between planet carrier (15) and casing (16) and also can slides along the axial direction being parallel to input shaft, tongue axle has gearshift groove interconnective with the shift fork contact of synchronizer (19), when shift fork turn left dial time synchronizer (19) gear ring (13) and casing (16) are fixed together, when shift fork turn right dial time synchronizer (19) make gear ring (13) and planet carrier (15) link together thus realize the automatic switchover of gear.
Publication number is that the Chinese patent of CN203453446U discloses a kind of electrically controlled and hydraulically formula electric vehicle two-shift automatic speed variator gearshift, structure principle chart as shown in Figure 2, its automatic gear shift apparatus mainly comprises electrohydraulic control system, oil hydraulic cylinder (22), selector fork (25), synchronizer (29), wherein oil hydraulic cylinder is double-cylinder hydraulic cylinder, oil hydraulic cylinder is connected with selector fork, and three position four-way electromagnetic valve (21) is connected with oil hydraulic cylinder (22).Electrohydraulic control system is moved left and right by solenoid valve (21) control piston, and swinging of piston driving shift fork, what shift fork drove the engaging sleeve of synchronizer to keep off with one, two respectively again engages the automatic switchover that gear ring engages to realize two gears.
Although principle can realize two-gear automatic speed changing object in technological scheme described in above two pieces patent, but also all there is same deficiency, namely all power gear shifting cannot be realized because the structure working principle of synchronizer determines the technological scheme that above-mentioned two pieces patent adopts, therefore, not only reduce smooth gear shifting and the ride comfort of electric vehicle, and its structure is also not simply compact.
Summary of the invention
The purpose of this utility model is the shortcoming and defect overcoming above-mentioned prior art, provides a kind of smooth gear shifting, drives comfortable clutch/brake integration assembly.By axial arranged two groups of Wet-type multi-disc friction pairs, realize the clutch between rotatable member and braking function.Overcome the problem that prior art electric motor car cannot realize power shfit.
The utility model is achieved through the following technical solutions:
A kind of clutch/brake integration assembly, adopt two hydraulic wet-type multi-disk friction clutches, comprise integrated clutch drum 301, clutch hub 319, brake friction assembly, clutch friction assembly, oil-feed axle sleeve 305, oil hydraulic cylinder 304, piston 313, return spring 312, spring seat 311, R type piston ring seal ring 310 and O RunddichtringO 314;
Described integrated clutch drum 301 is rigidly connected with oil hydraulic cylinder 304, and described piston 313, return spring 312 and spring seat 311 are installed in oil hydraulic cylinder 304 successively;
Described oil hydraulic cylinder 304 and piston 313, O RunddichtringO 314 form two axial arranged and hydraulic pressure cavity of separate fuel feeding;
Described oil hydraulic cylinder 304 is supported on oil-feed axle sleeve 305 by two needle bearings 306, realizes radial location; Oil hydraulic cylinder 304 realizes axially locating by the needle roller thrust bearing of two between oil-feed axle sleeve 305 and clutch hub 319 320;
The right-hand member of described clutch friction assembly connecting integration clutch drum 301 and clutch hub 319, brake friction assembly connecting integration clutch drum 301 left end and oil-feed axle sleeve 305;
The high-pressure oil duct that two lead to two hydraulic pressure cavity is respectively provided with in described oil-feed axle sleeve 305, i.e. break high-pressure oil duct 307 and clutch high pressure oil duct 309, and a cooling and lubricating oil duct towards each motive position, and the outer surface of oil-feed axle sleeve 305 is provided with four annular oil grooves, annular oil groove communicates with each corresponding high-pressure oil duct, and the annular groove that described R type piston ring seal ring 310 is installed on described oil-feed axle sleeve 305 is interior to realize the motive sealing of hydraulic oil.
Described clutch friction assembly comprises clutch friction plate 318 and snap ring 316, and described brake friction assembly comprises brake bush 303 and break steel disc 302; Described brake friction assembly and clutch friction assembly are axial arranged in the inside of an integrated clutch drum 301 respectively;
The inner ring of described integrated clutch drum 301 is provided with the internal spline matched with the external tooth of break steel disc 302, is provided with and can produces tach signal and can the straight tooth column external toothing 315 of transmitting torque in the middle part of the outer ring of described integrated clutch drum 301.
Be provided with the annular cavity of two axial distribution in described oil hydraulic cylinder 304, described O RunddichtringO 314 is arranged on piston 313 in two inside-and-outside ring grooves respectively, and described piston 313 forms single-action hydraulic cylinder jointly with described oil hydraulic cylinder 304.
By the O RunddichtringO 314 on piston 313 between spring seat 311 and piston 313, form radial airtight space.
Described oil-feed axle sleeve 305 is provided with external tooth hub, and the internal tooth of the brake bush 303 in braking friction component is nested on external tooth hub and also can slides axially.
Described oil hydraulic cylinder 304 inwall is provided with the spring seat snap ring 324 for fixing spring seat 311 axial position.
Described clutch/brake integration assembly also comprises an input shaft 308; Integrated clutch drum 301 and input shaft 308 are kept apart by described oil-feed axle sleeve 305, make the rotation of input shaft 308 not by the influence of vibration of integrated clutch drum 301.
Described return spring 312 is helical spring group, diaphragm spring or central spiral spring.
Gear automatic switching method is as follows:
When electrohydraulic control system injects high pressure oil by the break high-pressure oil duct 307 in oil-feed axle sleeve 305 to the left side oil pocket of oil hydraulic cylinder 304, the piston 313 that oil liquid pressure promotes oil hydraulic cylinder 304 left hand brake moves to left, to compress the brake friction assembly of integrated clutch drum 301 left end, utilize the brake bush 303 in brake friction assembly and the friction torque produced between break steel disc 302 that integrated clutch drum 301 is integrally bonded with oil-feed axle sleeve 305, due to the left end cap that oil-feed axle sleeve 305 is bolted on casing realizing the braking of integrated clutch drum 301, because gear ring 327 is into a single integrated structure with integrated clutch drum 301, so gear ring 327 is also braked, now, from input shaft 308 to the velocity ratio of output shaft 322 be 1+ α, α is the characteristic parameter of planet row,
When electrohydraulic control system disconnects the break high-pressure oil duct 307 of left side oil pocket, left hand piston is by return to the right under the effect of return spring, brake bush 303 in the brake friction assembly in left side is separated with between break steel disc 302, inject high pressure oil by the oil pocket of the clutch high pressure oil duct 309 in oil-feed axle sleeve 305 on the right side of oil hydraulic cylinder 304 simultaneously, the piston promoting clutch on the right side of oil hydraulic cylinder moves to right by fluid, the clutch friction assembly of integrated clutch drum right-hand member is compressed, integrated clutch drum 301 is engaged generation friction torque with the clutch hub 319 on input shaft 308, the synchronization of both realizations, at the end of synchronization process, sun gear 323, gear ring 327 is identical with the rotating speed of planet carrier 322, namely from input shaft 308 to the velocity ratio of output shaft 322 be 1, thus complete the automatic switchover of gear.
The utility model can realize clutch and braking two kinds of functions by the Engage and disengage of HYDRAULIC CONTROL SYSTEM two groups of friction pairs, the suitable cooperation of the two can complete power failure-free shift process, and two groups of Wet-type multi-disc friction pairs are axially integrated in one have simple and compact for structure, volume is little, number of components is few, failure rate is low, the advantage such as easy to process.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of CN102182801A patent.
Fig. 2 is the structure principle chart of CN203453446U patent.
Fig. 3 is the structural mechanics sketch of a kind of clutch/brake integration of the utility model assembly.
Fig. 4 is the structural profile schematic diagram of this kind of clutch/brake integration assembly.
Reference character in Fig. 3 and Fig. 4: integrated clutch drum 301; Break steel disc 302; Brake bush 303; Oil hydraulic cylinder 304; Oil-feed axle sleeve 305; Needle bearing 306; Break high-pressure oil duct 307; Input shaft 308; Clutch high pressure oil duct 309; R type piston ring seal ring 310; Spring seat 311; Return spring 312; Piston 313; O RunddichtringO 314; Straight tooth column external toothing 315; Snap ring 316; Clutch steel disc 317; Clutch friction plate 318; Clutch hub 319; Needle roller thrust bearing 320; Cooling liquid oil duct 321; Output shaft 322; Sun gear 323; Spring seat snap ring 324; Planetary gear train 325; Planet carrier 326; Gear ring 327; Casing 328.
Embodiment
Below in conjunction with specific embodiment, the utility model is more specifically described in detail.
Embodiment
Fig. 1, Fig. 2 are prior art.Particular content is see background technique part.
The main structure of the utility model clutch/brake integration assembly is described below in conjunction with Fig. 3, Fig. 4, it adopts two hydraulic wet-type multi-disk friction clutches (being axially integrated in one by two groups of hydraulic driving Wet-type multi-disc friction components), comprises integrated clutch drum 301, clutch hub 319, brake friction assembly, clutch friction assembly, oil-feed axle sleeve 305, oil hydraulic cylinder 304, piston 313, return spring 312, spring seat 311, R type piston ring seal ring 310 and O RunddichtringO 314;
Described integrated clutch drum 301 is rigidly connected with (tandem) oil hydraulic cylinder 304, and described piston 313, return spring 312 and spring seat 311 are installed in oil hydraulic cylinder 304 successively;
Described oil hydraulic cylinder 304 and piston 313, O RunddichtringO 314 form two axial arranged and hydraulic pressure cavity of separate fuel feeding;
Described oil hydraulic cylinder 304 is supported on oil-feed axle sleeve 305 by two needle bearings 306, realizes radial location; Oil hydraulic cylinder 304 realizes axially locating by the needle roller thrust bearing of two between oil-feed axle sleeve 305 and clutch hub 319 320;
The right-hand member of described clutch friction assembly connecting integration clutch drum 301 and clutch hub 319, brake friction assembly connecting integration clutch drum 301 left end and oil-feed axle sleeve 305;
The high-pressure oil duct that two lead to two hydraulic pressure cavity is respectively provided with in described oil-feed axle sleeve 305, i.e. break high-pressure oil duct 307 and clutch high pressure oil duct 309, and a cooling and lubricating oil duct (not shown) towards each motive position, and the outer surface of oil-feed axle sleeve 305 is provided with four annular oil grooves, annular oil groove communicates with each corresponding high-pressure oil duct, and the annular groove that described R type piston ring seal ring 310 is installed on described oil-feed axle sleeve 305 is interior to realize the motive sealing of hydraulic oil.
Described clutch friction assembly comprises clutch friction plate 318 and snap ring 316, and described brake friction assembly comprises brake bush 303 and break steel disc 302; Described brake friction assembly and clutch friction assembly are axial arranged in the inside of an integrated clutch drum 301 respectively;
The inner ring of described integrated clutch drum 301 is provided with the internal spline matched with the external tooth of break steel disc 302, internal spline can be various shape, what adopt in the present embodiment is rectangular teeth, is provided with and can produces tach signal and can the straight tooth column external toothing 315 of transmitting torque in the middle part of the outer ring of described integrated clutch drum 301.
The annular cavity of two axial distribution is provided with in described oil hydraulic cylinder 304, the size of chamber is determined according to the needs of design parameter, the two internal-and external diameter can identical also can be different, the present embodiment is arranged to the form of equal internal-and external diameter, described O RunddichtringO 314 is arranged on piston 313 in two inside-and-outside ring grooves respectively, and described piston 313 forms single-action hydraulic cylinder jointly with described oil hydraulic cylinder 304.
By the O RunddichtringO 314 on piston 313 between spring seat 311 and piston 313, form radial airtight space.Namely dynamic balancing hydraulic chamber is formed, for balancing the centrifugal oil pressure that hyperbaric chamber produces.The form of return spring 312 does not limit, and can adopt diaphragm spring, central spiral spring etc. and the present embodiment adopts is compact spiral cluster spring circumferentially.
Described oil-feed axle sleeve 305 is provided with external tooth hub, and the internal tooth of the brake bush 303 in braking friction component is nested on external tooth hub and also can slides axially.
Described oil hydraulic cylinder 304 inwall is provided with the spring seat snap ring 324 for fixing spring seat 311 axial position.
Described clutch/brake integration assembly also comprises an input shaft 308; Integrated clutch drum 301 and input shaft 308 are kept apart by described oil-feed axle sleeve 305, make the rotation of input shaft 308 not by the influence of vibration of integrated clutch drum 301.
Described return spring 312 is helical spring group, diaphragm spring or central spiral spring.
The utility model can realize clutch and braking two kinds of functions by the Engage and disengage of HYDRAULIC CONTROL SYSTEM two groups of friction pairs, the suitable cooperation of the two can complete power failure-free shift process, and two groups of Wet-type multi-disc friction pairs is axially integrated in one and has compact structure, volume is little, number of components is few, easy to process advantage.
For ease of embody rule state of the present utility model is described, Fig. 4 shows the clutch/brake integration epicyclic transmission mechanism of assembly, casing 328, the input shaft 308 of epicyclic transmission mechanism, sun gear 323, planetary gear train 325, gear ring 327 and planet carrier 326; Input shaft 308 and sun gear 323 are fixed together by interference fit and auxiliary flat key, and planetary gear train 325 comprises planetary pinion, planet wheel shaft, needle bearing and thrust washer, and gear ring 327 makes an entirety with integrated clutch drum 301; For ease of processing and dismounting, casing 328, as the installation matrix of other part, is divided into left end cap and right body two-part; Together with described oil-feed axle sleeve 305 is bolted on left end cap, left end cap recycling Bolt Connection is on right body.
Adopt the utility model clutch/brake integration assembly to realize the method for gear automatic switchover, realize by following steps:
When electrohydraulic control system injects high pressure oil by the break high-pressure oil duct 307 in oil-feed axle sleeve 305 to the left side oil pocket of oil hydraulic cylinder 304, the piston 313 that oil liquid pressure promotes oil hydraulic cylinder 304 left hand brake moves to left, to compress the brake friction assembly of integrated clutch drum 301 left end, utilize the brake bush 303 in brake friction assembly and the friction torque produced between break steel disc 302 that integrated clutch drum 301 is integrally bonded with oil-feed axle sleeve 305, due to the left end cap that oil-feed axle sleeve 305 is bolted on casing realizing the braking of integrated clutch drum 301, because gear ring 327 is into a single integrated structure with integrated clutch drum 301, so gear ring 327 is also braked, now, from input shaft 308 to the velocity ratio of output shaft 322 be 1+ α, α is the characteristic parameter of planet row,
When electrohydraulic control system disconnects the break high-pressure oil duct 307 of left side oil pocket, left hand piston is by return to the right under the effect of return spring, brake bush 303 in the brake friction assembly in left side is separated with between break steel disc 302, inject high pressure oil by the oil pocket of the clutch high pressure oil duct 309 in oil-feed axle sleeve 305 on the right side of oil hydraulic cylinder 304 simultaneously, the piston promoting clutch on the right side of oil hydraulic cylinder moves to right by fluid, the clutch friction assembly of integrated clutch drum right-hand member is compressed, integrated clutch drum 301 is engaged generation friction torque with the clutch hub 319 on input shaft 308, the synchronization of both realizations, at the end of synchronization process, sun gear 323, gear ring 327 is identical with the rotating speed of planet carrier 322, namely from input shaft 308 to the velocity ratio of output shaft 322 be 1, thus complete the automatic switchover of gear.
For realizing clutch and the power failure-free characteristic in braking handoff procedure, electricity liquid automatic control system will suitably control the oil pressure Changing Pattern of two hydraulic pressure cavity, two groups of friction components are made to occur overlapping working area, namely two groups of friction pairs can produce friction torque simultaneously, avoid integrated clutch drum 301 in handoff procedure unfettered and occur idle running phenomenon, thus make system all the time can Driving Torque, reach the object of power failure-free gearshift.
As mentioned above, just the utility model can be realized preferably.
Mode of execution of the present utility model is not restricted to the described embodiments; other are any do not deviate from the utility model Spirit Essence and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (8)
1. a clutch/brake integration assembly, adopt two hydraulic wet-type multi-disk friction clutches, it is characterized in that: comprise integrated clutch drum (301), clutch hub (319), brake friction assembly, clutch friction assembly, oil-feed axle sleeve (305), oil hydraulic cylinder (304), piston (313), return spring (312), spring seat (311), R type piston ring seal ring (310) and O RunddichtringO (314);
Described integrated clutch drum (301) and oil hydraulic cylinder (304) are rigidly connected, and described piston (313), return spring (312) and spring seat (311) are installed in oil hydraulic cylinder (304) successively;
Described oil hydraulic cylinder (304) and piston (313), O RunddichtringO (314) form two axial arranged and hydraulic pressure cavity of separate fuel feeding;
Described oil hydraulic cylinder (304) is supported on oil-feed axle sleeve (305) by two needle bearings (306), realizes radial location; Oil hydraulic cylinder (304) realizes axially locating by two needle roller thrust bearings (320) between oil-feed axle sleeve (305) and clutch hub (319);
The right-hand member of described clutch friction assembly connecting integration clutch drum (301) and clutch hub (319), brake friction assembly connecting integration clutch drum (301) left end and oil-feed axle sleeve (305);
The high-pressure oil duct that two lead to two hydraulic pressure cavity is respectively provided with in described oil-feed axle sleeve (305), i.e. break high-pressure oil duct (307) and clutch high pressure oil duct (309), and a cooling and lubricating oil duct towards each motive position, and the outer surface of oil-feed axle sleeve (305) is provided with four annular oil grooves, annular oil groove communicates with each corresponding high-pressure oil duct, and the annular groove that described R type piston ring seal ring (310) is installed on described oil-feed axle sleeve (305) is interior to realize the motive sealing of hydraulic oil.
2. clutch/brake integration assembly according to claim 1, it is characterized in that: described clutch friction assembly comprises clutch friction plate (318) and snap ring (316), described brake friction assembly comprises brake bush (303) and break steel disc (302); Described brake friction assembly and clutch friction assembly are axial arranged in the inside of an integrated clutch drum (301) respectively;
The inner ring of described integrated clutch drum (301) is provided with the internal spline matched with the external tooth of break steel disc (302), is provided with and can produces tach signal and can the straight tooth column external toothing (315) of transmitting torque in the middle part of the outer ring of described integrated clutch drum (301).
3. clutch/brake integration assembly according to claim 1, it is characterized in that: the annular cavity being provided with two axial distribution in described oil hydraulic cylinder (304), described O RunddichtringO (314) is arranged in upper two the inside-and-outside ring grooves of piston (313) respectively, and described piston (313) and described oil hydraulic cylinder (304) form single-action hydraulic cylinder jointly.
4. clutch/brake integration assembly according to any one of claim 1 to 3, it is characterized in that: by the O RunddichtringO (314) on piston (313) between spring seat (311) and piston (313), form radial airtight space.
5. clutch/brake integration assembly according to claim 4, it is characterized in that: described oil-feed axle sleeve (305) is provided with external tooth hub, the internal tooth of the brake bush (303) in braking friction component is nested on external tooth hub and also can slides axially.
6. clutch/brake integration assembly according to claim 4, is characterized in that: described oil hydraulic cylinder (304) inwall is provided with the spring seat snap ring (324) for fixing spring seat (311) axial position.
7. clutch/brake integration assembly according to claim 4, is characterized in that: described clutch/brake integration assembly also comprises an input shaft (308); Integrated clutch drum (301) and input shaft (308) are kept apart by described oil-feed axle sleeve (305), make the rotation of input shaft (308) not by the influence of vibration of integrated clutch drum (301).
8. clutch/brake according to claim 4 integration assembly, is characterized in that: return spring (312) is helical spring group, diaphragm spring or central spiral spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520784752.1U CN205064652U (en) | 2015-10-10 | 2015-10-10 | Clutch / stopper integration assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520784752.1U CN205064652U (en) | 2015-10-10 | 2015-10-10 | Clutch / stopper integration assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205064652U true CN205064652U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520784752.1U Expired - Fee Related CN205064652U (en) | 2015-10-10 | 2015-10-10 | Clutch / stopper integration assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205064652U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276044A (en) * | 2015-10-10 | 2016-01-27 | 华南理工大学 | Clutch/brake integrated assembly and automatic gear switching method thereof |
| CN108730375A (en) * | 2018-05-31 | 2018-11-02 | 盛瑞传动股份有限公司 | Brake and speed changer |
| CN111457025A (en) * | 2020-03-11 | 2020-07-28 | 宁波上中下自动变速器有限公司 | Clutch actuating mechanism and car |
| CN113748275A (en) * | 2019-05-03 | 2021-12-03 | 舍弗勒技术股份两合公司 | Disk brake device and transmission device having disk brake device |
-
2015
- 2015-10-10 CN CN201520784752.1U patent/CN205064652U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276044A (en) * | 2015-10-10 | 2016-01-27 | 华南理工大学 | Clutch/brake integrated assembly and automatic gear switching method thereof |
| CN105276044B (en) * | 2015-10-10 | 2018-02-27 | 华南理工大学 | A kind of clutch/brake integration assembly and its gear automatic switching method |
| CN108730375A (en) * | 2018-05-31 | 2018-11-02 | 盛瑞传动股份有限公司 | Brake and speed changer |
| CN113748275A (en) * | 2019-05-03 | 2021-12-03 | 舍弗勒技术股份两合公司 | Disk brake device and transmission device having disk brake device |
| CN111457025A (en) * | 2020-03-11 | 2020-07-28 | 宁波上中下自动变速器有限公司 | Clutch actuating mechanism and car |
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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: 20160302 Termination date: 20191010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |