CN105333140B - A kind of automotive transmission parking locking mechanism - Google Patents
A kind of automotive transmission parking locking mechanism Download PDFInfo
- Publication number
- CN105333140B CN105333140B CN201510856331.XA CN201510856331A CN105333140B CN 105333140 B CN105333140 B CN 105333140B CN 201510856331 A CN201510856331 A CN 201510856331A CN 105333140 B CN105333140 B CN 105333140B
- Authority
- CN
- China
- Prior art keywords
- conical surface
- lock ring
- jackshaft
- ring
- parking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
- F16H63/3433—Details of latch mechanisms, e.g. for keeping pawls out of engagement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/345—Parking lock mechanisms or brakes in the transmission using friction brakes, e.g. a band brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3458—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire
- F16H63/3466—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire using electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3491—Emergency release or engagement of parking locks or brakes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses a kind of automotive transmission parking locking mechanism, it is characterized in that including lockable mechanism and hand-operating unlocking mechanism；Lockable mechanism is made up of conical surface jackshaft, drag ring, conical surface lock ring, leading screw, guide rod and motor；The shaft end of conical surface jackshaft is conical surface shape, and periphery includes several columns oil unloading trough, and oil unloading trough is connected with the through hole in axle center；Conical surface lock ring endoporus is tapered, and if containing arterial highway oil return ditch；Braked by controlled motor rotating band mantle face lock ring and drag ring, the speed changer that is implemented in combination with of conical surface jackshaft；Parking locking mechanism can guarantee that conical surface jackshaft, drag ring when mounted, and " having three pyramidal faces " of conical surface lock ring with one heart, so as to ensure the accuracy of braking, avoid car slipping.The present invention cuts off self-lock, and is powered and releases, its control operation is simple, compact-sized, full-featured, effectively improves the reliability and stability of parking braking.
Description
Technical field
The present invention relates to a kind of parking locking mechanism suitable for automotive transmission.
Background technology
The appearance of automatic gear-box, tension during driver's driving is alleviated, improve the comfortableness of driving.Mesh
The preceding research for automatic transmission primarily focuses on the lifting of TR, has evolved into 4 grades, 6 grades, 8 grades and 9 at present
Shelves, even more high.But meanwhile good parking function is also gradually concerned.
Good parking locking mechanism is to ensure the important means of the reliable parking of automobile, from the point of view of current domestic situation,
Special halting mechanism is typically equipped with the fuel-engined vehicle equipped with automatic transmission, inside speed changer, is generally all to rely on
Park pawl realizes with parking ratchet wheel, and during parking, during gear push-in P shelves, park pawl pushes, park pawl and parking ratchet wheel
Occlusion, gearbox driving wheel are locked out；But if driver does not pay attention to, P shelves are directly hung in parking, once what car was stopped
There are some gradients position, and park pawl will be constantly in stress with parking ratchet wheel；In this case, then from P shelves draw
, can be very painstaking during to other gears, disengagement moment can cause huge impact to gear, if for a long time so, gearbox
Just it is very easy to damage；Simultaneously as halting mechanism is realized by park pawl with parking ratchet wheel, and ratchet can not with ratchet
It can well be engaged at an arbitrary position, therefore slight car slipping is often had in parking using the automobile of automatic gear-box and is showed
As.
The content of the invention
For above-mentioned the deficiencies in the prior art, the present invention proposes a kind of automotive transmission parking locking mechanism, its mesh
Be provide a kind of new parking locking mechanism for automotive transmission so that the parking reliability of automotive transmission,
Parking safety is lifted, and is avoided because the operational error of driver damages to caused by gearbox.
The present invention adopts the following technical scheme that to solve technical problem：
Automotive transmission parking locking mechanism of the present invention is structurally characterized in that：The mechanism is by lockable mechanism part and manually
Unlocking mechanism part forms.
Automotive transmission of the present invention is lain also in the design feature of parking locking mechanism：The lockable mechanism part is by the conical surface
Jackshaft, drag ring, conical surface lock ring, leading screw, guide rod and motor composition；The conical surface jackshaft is arranged in gearbox, with
The output shaft of gearbox connects firmly, and shaft end is conical surface shape, and periphery includes several columns oil unloading trough；The oil unloading trough and axle center
Through hole is connected, and can remove the lubricating oil penetrated on conical surface jackshaft；The drag ring profile is tapered, can be by oil resisting material, height
The raw material such as antifriction metal (AFM) powder mix, respectively with conical surface jackshaft and conical surface lock ring mobile contact；The conical surface lock
Only ring endoporus is tapered, and if contain arterial highway oil return ditch, and contacted with drag ring, meanwhile, be also equipped with silk on conical surface lock ring
Thick stick and guide rod, it can be moved horizontally on guide rod；The guide rod is fixed, and one end is arranged in conical surface lock ring, other end peace
On electric machine support；The thread form angle of the leading screw is in 45 °, and one end is arranged in conical surface lock ring, the other end and motor it is defeated
Shaft connects firmly；The motor is fixed on electric machine support, is driven leading screw to rotate, is moved left and right conical surface lock ring.
Automotive transmission of the present invention is lain also in the design feature of parking locking mechanism：The hand-operating unlocking mechanism part by
Frame, electric machine support, screw, manual unlocking bolt, fixing bolt and support arm composition；Electricity is fixedly connected with the electric machine support
Machine, and coordinate with the inside groove gap of support arm；Simultaneously installing port is also threaded on the electric machine support；The support arm leads to
Cross screw to be fixed in frame, inside groove coordinates with electric machine support gap；The fixing bolt is threadedly coupled with support arm, is arranged on
On support arm, electric machine support is withstood in the end of fixing bolt, the fixation for electric machine support；The manual unlocking bolt is outside
Screw thread mouth coordinates on through hole, with electric machine support on support；Manual unlocking bolt rotate, can drive motor support move right, from
And drive conical surface lock ring also to move right, manual unlocking during electrical fault for parking locking mechanism.
Compared with the prior art, the present invention has the beneficial effect that：
1. parking locking mechanism of the present invention is by controlling the engagement state of two conical surfaces to realize parking, i.e., by the conical surface it
Between friction realize the latch functions of parking；Because taper-face contact area is big, so its braking moment is high, good braking effect.
2. parking locking mechanism of the present invention can guarantee that two conical surfaces are concentric when mounted, so as to ensure that the accuracy of braking,
Zero deflection, avoid slight car slipping phenomenon existing for common lockable mechanism.
3. parking locking mechanism of the present invention completes parking action due to the friction using two conical surfaces, and the conical surface has automatically
Compensation function, after conical surface abrasion, it is only necessary to increase the stroke of male cone (strobilus masculinus), can still reach parking and consolidate purpose, carry
The service life of halting mechanism is risen.
4. employing the structure settings such as oil unloading trough, through hole, oil return ditch during design of the present invention to the conical surface, reduce internal profit
Influence of the lubricating oil to conical surface friction；Drag ring is also equipped between conical surface jackshaft and conical surface lock ring, considerably increases cone
Friction catch effect between face.
5. parking locking mechanism of the present invention is " normally off ", as cut off self-lock, be powered and release.When needing parking, lead to
Crossing controlled motor causes two conical surfaces to be in engagement state, and after power is turned off, the auto-lock function having in itself by leading screw, protect
Hold the engagement of the conical surface so that the automotive transmission keeps lockup state well with parking locking mechanism in parking.
6. the thread form angle of leading screw of the present invention is in 45 °, for the common leading screw that thread form angle common at present is 60 °,
The effect of self-locking is more preferable, can guarantee that good parking effect completely.
7. when motor breaks down, can direct manual unlocking, cancel parking effect, ensure the normal of vehicle
Traveling.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is conical surface locking system schematic diagram in the present invention；
Fig. 3 is hand-operating unlocking mechanism schematic diagram in the present invention；
Fig. 4 is specific embodiment of the invention schematic diagram；
Label in figure：1 conical surface jackshaft, 2 drag rings, 3 conical surface lock rings, 4 leading screws, 5 guide rods, 6 frames, 7 electric machine supports,
8 screws, 9 manual unlocking bolts, 10 motors, 11 fixing bolts, 12 support arms, 13 oil unloading troughs, 14 through holes, 15 oil return ditches.
Embodiment
Automotive transmission parking locking mechanism is by lockable mechanism part and hand-operating unlocking mechanism part group in the present embodiment
Into.
Referring to Fig. 1, Fig. 2 and Fig. 4, lockable mechanism part is by conical surface jackshaft 1, drag ring 2, conical surface lock ring 3, leading screw 4,
Guide rod 5 and motor 10 form；The conical surface jackshaft 1 is arranged in gearbox, is connected firmly with the output shaft of gearbox, and shaft end is cone
Face shape, and periphery includes several columns oil unloading trough 13；The oil unloading trough (13) is connected with the through hole 14 in axle center, can remove and penetrates into
Lubricating oil on conical surface jackshaft 1；The profile of drag ring 2 is tapered, can be by former materials such as oil resisting material, high abrasion metal dusts
Material mixes, respectively with conical surface jackshaft 1 and the mobile contact of conical surface lock ring 3；The endoporus of conical surface lock ring 3 is tapered,
And if contain arterial highway oil return ditch 15, and contacted with drag ring 2, meanwhile, leading screw 4 and guide rod 5 are also equipped with conical surface lock ring 3,
It can be moved horizontally on guide rod 5；The guide rod 5 is fixed, and one end is arranged in conical surface lock ring 3, and the other end is arranged on electricity
On machine support 7；The thread form angle of the leading screw 4 is in 45 °, and one end is arranged in conical surface lock ring 3, the output of the other end and motor 10
Axle connects firmly；The motor 10 is fixed on electric machine support 7, is driven leading screw 4 to rotate, is moved left and right conical surface lock ring 3.
Referring to Fig. 1 and Fig. 3, hand-operating unlocking mechanism part is manual to solve by frame 6, electric machine support 7, screw 8 in the present embodiment
Bolt 9 is locked, fixing bolt 11 and support arm 12 form；Be fixedly connected with motor 10 on the electric machine support 7, and with support arm 12
Groove gap coordinates；Simultaneously installing port is also threaded on the electric machine support 7；The support arm 12 is fixed on by screw 8
In frame 6, inside groove coordinates with the gap of electric machine support 7；The fixing bolt 11 is threadedly coupled with support arm 12, installed in support arm
On 12, electric machine support 7 is withstood in the end of fixing bolt 11, the fixation for electric machine support 7；The manual unlocking bolt 9 passes through
Screw thread mouth coordinates on through hole on support arm 12, with electric machine support 7；Manual unlocking bolt 9 rotates, can drive motor support 7 to the right
It is mobile, so as to drive conical surface lock ring 3 also to move right, manual unlocking during 10 failure of motor for parking locking mechanism.
By taking a two speed transmission as an example：As shown in Figure 1, Figure 2 and Figure 4, its lockable mechanism part is in normally travel state
When lower, power is transferred to conical surface jackshaft 1 in gearbox by input shaft, is exported after conical surface jackshaft transmission, by differential
Device, finally export to tire, power is provided for the operating of vehicle；Now, the conical surface of conical surface jackshaft 1 and conical surface lock ring 3
The conical surface separates, and the conical surface does not produce friction, therefore automobile normal running；When needing parking, motor 10 operates, and drives leading screw 4 to revolve
Turn, under the collective effect of leading screw 4 and guide rod 5, the conical surface of conical surface jackshaft 1 and drag ring 2, conical surface lock ring 3 the conical surface by
Gradually engage, to certain position after motor be stopped, now the conical surface of the conical surface of conical surface jackshaft 1 and conical surface lock ring 3 has been
Be tightly jointed, between the conical surface caused friction conical surface jackshaft 1 can be caused to shut down, i.e., gearbox is in locking-in state,
Thus the purpose of parking is reached；When needing to release parked state, motor 10 inverts, under the collective effect of leading screw 4 and guide rod 5,
The conical surface of conical surface jackshaft 1 switchs to released state, i.e. parked state with drag ring 2, the conical surface of conical surface lock ring 3 by engagement state
Release.As shown in figures 1 and 3, when motor 10 breaks down, vehicle is in parked state, and needs to release parking, can use
The hand-operating unlocking mechanism is realized.Concrete operations are as follows：Fixing bolt 11 can be first pulled down, electric machine support 7 is no longer fixed
Withstand the end of bolt 11；Rotary manual release screw bolt 9 afterwards, because constraint of the electric machine support 7 without fixing bolt 11 acts on,
Therefore can be moved right with the rotation of manual unlocking bolt 9, so as to drive conical surface lock ring 3 also to move right, mobile one end away from
From rear, the conical surface is no longer on engagement state, and vehicle just can release parking, recover normally travel state.
Claims (1)
- A kind of 1. automotive transmission parking locking mechanism, it is characterised in that the lockable mechanism part of the mechanism.The locking machine Structure part is by conical surface jackshaft (1), drag ring (2), conical surface lock ring (3), leading screw (4), guide rod (5) and motor (10) composition； The conical surface jackshaft (1) is arranged in gearbox, is connected firmly with the output shaft of gearbox, and shaft end is conical surface shape, and periphery is wrapped Contain several columns oil unloading trough (13)；The oil unloading trough (13) is connected with the through hole (14) in axle center, can remove and penetrates into conical surface jackshaft (1) lubricating oil on；Drag ring (2) profile is tapered, movable with conical surface jackshaft (1) and conical surface lock ring (3) respectively Contact；Conical surface lock ring (3) endoporus is tapered, and if contain arterial highway oil return ditch (15), and contacted with drag ring (2), together When, leading screw (4) and guide rod (5) are also equipped with conical surface lock ring (3), can be moved horizontally on guide rod (5)；The guide rod (5) Fixed, one end is arranged in conical surface lock ring (3), and the other end is arranged on electric machine support (7)；Described leading screw (4) one end In conical surface lock ring (3), the other end and the output shaft of motor (10) connect firmly；The motor (10) is fixed on electric machine support (7) on, drive leading screw (4) to rotate, move left and right conical surface lock ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510856331.XA CN105333140B (en) | 2015-11-26 | 2015-11-26 | A kind of automotive transmission parking locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510856331.XA CN105333140B (en) | 2015-11-26 | 2015-11-26 | A kind of automotive transmission parking locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105333140A CN105333140A (en) | 2016-02-17 |
| CN105333140B true CN105333140B (en) | 2017-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510856331.XA Active CN105333140B (en) | 2015-11-26 | 2015-11-26 | A kind of automotive transmission parking locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105333140B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016109553B4 (en) | 2016-05-24 | 2022-01-27 | Gkn Automotive Ltd. | System for actuating a parking lock |
| CN106926828A (en) * | 2017-03-08 | 2017-07-07 | 湖北汽车工业学院 | A kind of executing agency driven for parking electric automobile electric mortise lock |
| DE102017218748A1 (en) * | 2017-10-19 | 2019-04-25 | Zf Friedrichshafen Ag | Parking lock for an automatic transmission in a motor vehicle |
| CN108506472A (en) * | 2018-03-23 | 2018-09-07 | 浙江合众新能源汽车有限公司 | P grades of control systems of pure electric automobile |
| CN108591446B (en) * | 2018-05-02 | 2020-02-07 | 奇瑞汽车股份有限公司 | Parking mechanism of automatic gearbox |
| CN109139906B (en) * | 2018-10-31 | 2020-05-08 | 奇瑞汽车股份有限公司 | Parking mechanism and car |
| CN111853231B (en) * | 2020-06-17 | 2021-09-21 | 义乌吉利自动变速器有限公司 | Parking device and vehicle with same |
| DE102022204204A1 (en) * | 2022-04-29 | 2023-11-02 | Robert Bosch Gesellschaft mit beschränkter Haftung | E-axle module of an electric vehicle |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07144616A (en) * | 1993-11-22 | 1995-06-06 | Aichi Mach Ind Co Ltd | Park locking device for transmission |
| SE524354C2 (en) * | 2003-02-04 | 2004-07-27 | Volvo Lastvagnar Ab | Axle brake for stepped gearbox, whereby a first brake element is integrated with and forms part of the axle |
| DE102004060016A1 (en) * | 2004-12-14 | 2006-06-22 | Schaeffler Kg | Friction pair with at least a first friction body as a counter body |
| CN100491172C (en) * | 2007-01-22 | 2009-05-27 | 余晓鹏 | Electric parking and braking device |
| CN101245854B (en) * | 2008-02-14 | 2010-06-23 | 重庆隆鑫机车有限公司 | Embedded vehicle-parking locking device of motor vehicle |
| CN201246428Y (en) * | 2008-05-29 | 2009-05-27 | 曹科定 | Brake device |
| CN201326671Y (en) * | 2008-09-26 | 2009-10-14 | 深圳市大族精密机电有限公司 | Locking mechanism |
| JP5673619B2 (en) * | 2012-07-16 | 2015-02-18 | 株式会社アドヴィックス | Electric parking brake control device |
| CN104074970B (en) * | 2013-03-28 | 2016-08-17 | 合肥工业大学 | A kind of pure electric automobile change speed gear box electronic parking mechanism |
| CN103148216B (en) * | 2013-03-28 | 2015-06-17 | 合肥工业大学 | Parking braking mechanism used for automotive transmission |
| CN104074971B (en) * | 2013-03-28 | 2016-03-30 | 合肥工业大学 | A kind of pure electric automobile automatic transmission box parking mechanism |
| CN203404328U (en) * | 2013-07-23 | 2014-01-22 | 浙江万向精工有限公司 | Integrated EPB driving device for parking braking |
-
2015
- 2015-11-26 CN CN201510856331.XA patent/CN105333140B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105333140A (en) | 2016-02-17 |
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Inventor after: Chen Qi Inventor after: Li Hao Inventor after: Yao Zhigang Inventor after: Xu Fan Inventor after: Fan Hao Inventor before: Chen Qi Inventor before: Xu Fan Inventor before: Fan Hao Inventor before: Gao Feng Inventor before: Zhang Zhen |
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Effective date of registration: 20201225 Address after: 245000 No. 50, Meilin Avenue, Huangshan Economic Development Zone, Anhui Province Patentee after: Huangshan Development Investment Group Co.,Ltd. Address before: Tunxi road in Baohe District of Hefei city of Anhui Province, No. 193 230009 Patentee before: Hefei University of Technology |
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