CN108930789A - A kind of Simple electronic halting mechanism - Google Patents
A kind of Simple electronic halting mechanism Download PDFInfo
- Publication number
- CN108930789A CN108930789A CN201810856918.4A CN201810856918A CN108930789A CN 108930789 A CN108930789 A CN 108930789A CN 201810856918 A CN201810856918 A CN 201810856918A CN 108930789 A CN108930789 A CN 108930789A
- Authority
- CN
- China
- Prior art keywords
- pawl
- ratchet
- worm gear
- gear
- tooth
- 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.)
- Granted
Links
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
- F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/746—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive and mechanical transmission of the braking action
-
- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/08—Range selector apparatus
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Gear Transmission (AREA)
Abstract
The present invention relates to a kind of Simple electronic halting mechanisms, worm gear and worm screw including engagement, the output shaft of the worm screw connection P gear driving motor, the center of the worm gear is equipped with rotatable pin shaft, the pin shaft is equipped with pawl, and the worm gear connects the pawl by torsionspring, and the lower section of the pawl is equipped with ratchet, the ratchet is fixed on the gear shaft of retarder, and the pawl is equipped with apical tooth corresponding with the slot form of the ratchet.Compared with prior art, the present invention realizes the secure ratcs of P retaining device by the latching characteristics of worm gear mechanism, avoids dead point locking defect, has advantages of simple structure and simple.
Description
Technical field
The present invention relates to technical field of vehicle control, more particularly, to a kind of Simple electronic halting mechanism.
Background technique
P gear halting mechanism is the automobile or the essential release mechanism of pure electric automobile for matching AT case, is mainly used for preventing
It is only slipped by slope after vehicle parking, it is ensured that automobile can park for a long time on the slope.It is generally lower in speed that P keeps off halting mechanism
By mechanical locking gear-box input/output axis when (being typically lower than 3km/h) or static, prevent jack shaft from rotating, thus
Wheel rolling is prevented to reach parking purpose.P keeps off halting mechanism and is divided into mechanical and electronic type parking by driving method, now with
Automotive circuit diagram degree is constantly promoted, and mechanical electronic parking is gradually replaced electronic type.
Although electronic type P gear halting mechanism is had been widely used at present on all kinds of AT casees and pure electric vehicle gear-box,
Existing structure still remains following problems:
1, structure is more too fat to move, and the components that existing electronics P retaining device is usually included are more, occupies larger gear-box
Inner space, while being installation and maintenance with difficulty.In addition, the quantity of components is more, also the reliability for P retaining device is mentioned
Higher requirement is gone out.
2, existing electronics P retaining device generally limits pawl rotation by the dead-centre position of cam mechanism, with using
In the process cam or with pawl paste where abrasion deformation, Locking property decline.
3, existing electronics P retaining device usually only provides power by torsionspring in lock-off, and lock-off power and lock-off speed are held
Easily there is deficiency, influences parking performance.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of Simple electronics to stay
Mechanism of car.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of Simple electronic halting mechanism, worm gear and worm screw including engagement, the worm screw connection P gear driving motor
Output shaft, the center of the worm gear are equipped with rotatable pin shaft, and the pin shaft is equipped with pawl, and the worm gear passes through torsionspring
The pawl is connected, the lower section of the pawl is equipped with ratchet, and the ratchet is fixed on the gear shaft of retarder, on the pawl
Equipped with apical tooth corresponding with the slot form of the ratchet.
Preferably, it is equipped with sliding bearing between the worm gear and pin shaft, is interference fitted between the sliding bearing and worm gear.
Preferably, the axle sleeve for axial limiting is equipped between the worm gear and pawl.
Preferably, when the P gear driving motor rotates clockwise, the worm screw, worm gear and torsionspring band are passed sequentially through
It moves the pawl to rotate clockwise, if the tooth socket of the apical tooth face ratchet of pawl, the apical tooth of pawl are caught in the tooth socket of ratchet.
Preferably, when the P gear driving motor rotates clockwise, the worm screw, worm gear and torsionspring band are passed sequentially through
It moves the pawl to rotate clockwise, if the tooth top of the apical tooth face ratchet of pawl, worm gear is persistently right by compression torsionspring
Pawl applies clockwise torque, and when the apical tooth of ratchet wheel to tooth socket face pawl, the apical tooth of pawl is caught in the tooth socket of ratchet
In.
Preferably, when the apical tooth of the pawl is caught in the tooth socket of ratchet, driving motor is kept off by P and rotates counterclockwise drive
The pawl rotates counterclockwise, and the apical tooth of the pawl is made to be detached from ratchet.
Compared with prior art, the invention has the following advantages that
1, the secure ratcs that P retaining device is realized by the latching characteristics of worm gear mechanism avoid dead point locking and lack
It falls into.
2, pawl is directly driven by torsionspring, increases lock-off torque compared to traditional design, reduces P retaining device and go out
Now can not lock-off failure a possibility that, realize lock-off process it is rapid and reliable.
3, P gear halting mechanism function is realized using less components, structure is simple.
Detailed description of the invention
Fig. 1 is structural schematic diagram when pawl is locked in ratchet in the present invention；
Fig. 2 is the diagrammatic cross-section of A-A in Fig. 1；
Fig. 3 is that P of the present invention keeps off pawl apical tooth and structural schematic diagram when ratchet tooth top face during locking；
Fig. 4 is the structural schematic diagram of torsionspring in its natural state in the present invention.
It is marked in figure: 1, worm screw, 2, worm gear, 3, pawl, 4, ratchet, 5, gear shaft, 6, pin shaft, 7, sliding bearing, 8, torsion
Turn spring, 9, axle sleeve.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment
As shown in Figure 1, a kind of Simple electronic halting mechanism, worm gear 2 and worm screw 1 including engagement, worm screw 1 connect P gear
The output shaft of driving motor, worm screw 1 are engaged with worm gear 2 with latching characteristics, and worm screw 1 can drive worm gear 2 to rotate, and worm gear 2 can not
Worm screw 1 is driven to rotate.The center of worm gear 2 is equipped with rotatable pin shaft 6, and pin shaft 6 is equipped with pawl 3, and worm gear 2 passes through high rigidity
Torsionspring 8 connects pawl 3, and both constraints of torsionspring 8 relatively rotate.The lower section of pawl 3 is equipped with ratchet 4, and ratchet 4 is fixed on
On the gear shaft 5 of retarder, pawl 3 is equipped with apical tooth corresponding with the slot form of ratchet 4.
As shown in Fig. 2, being equipped with sliding bearing 7 between worm gear 2 and pin shaft 6, it is interference fitted between sliding bearing 7 and worm gear 2,
Enable worm gear 2 around the smooth rotation of pin shaft 6.The axle sleeve 9 for axial limiting is equipped between worm gear 2 and pawl 3.
Pawl 3 exists with ratchet 4 engages and is detached from two kinds of motion states, respectively corresponds lockup state and delocking state.This
The specific work process of device is as follows.
1, P keeps off locking
P gear driving motor rotates clockwise, and worm screw 1 drives worm gear 2, and worm gear 2 drives torsionspring 8, and torsionspring 8 drives
Pawl 3 rotates clockwise, and for the difference of the tooth socket relative position of the apical tooth and ratchet 4 of pawl 3, there is following two situation:
If 1) tooth socket of the apical tooth face ratchet 4 of pawl 3, as shown in Figure 1, the apical tooth of pawl 3 is smoothly caught in ratchet 4
In tooth socket；
If 2) tooth top of the apical tooth face ratchet 4 of pawl 3, as shown in figure 3, worm gear 2 is continued by compression torsionspring 8
Clockwise torque is applied to pawl 3, when ratchet 4 turns to the apical tooth of tooth socket face pawl 3, the apical tooth of pawl 3 is smoothly caught in
In the tooth socket of ratchet 4.
After the tooth socket of the apical tooth insertion ratchet 4 of pawl 3, the gear shaft 5 to link with ratchet 4 is locked up, at this point, P gear driving
Motor shaft stops operating.Worm gear 2 formed with worm screw 1 it is self-locking, pawl 3 can not pass through torsionspring 8 drive worm gear 2 counterclockwise revolve
Turn.
When vehicle stops on the slope or vehicle vibrates, pawl 3 will receive torque counterclockwise, but due to worm gear 2
With the latching characteristics of worm screw 1, pawl 3 can not be moved, to realize reliable parking on the slope for a long time.
2, P keeps off lock-off
P gear driving motor rotates counterclockwise, and worm screw 1 drives worm gear 2 to rotate counterclockwise, and worm gear 2 is driven by torsionspring 8
Pawl 3 rotates counterclockwise, so that the apical tooth of pawl 3 is detached from ratchet 4, as shown in Figure 4.
It is different that the driving that rebounds of torsionspring 8 is completely dependent on from general electronic type P gear parking lock-off power, when present apparatus lock-off,
Motor directly drives torsionspring 8 by transmission system and rotates counterclockwise with pawl 3, therefore the present apparatus compares traditional design,
With bigger lock-off torque, to realize that lock-off is rapidly and reliable.
The design does not limit swing of the pawl 3 under the action of torsionspring 8 in lock-off, and worm gear 2, which drives, when lock-off turns round
Turning spring 8, rotation, the swing of pawl 3 can not influence the operation of P retaining device counterclockwise together.
Claims (6)
1. a kind of Simple electronic halting mechanism, which is characterized in that worm gear and worm screw including engagement, the worm screw connection P gear
The output shaft of driving motor, the center of the worm gear are equipped with rotatable pin shaft, and the pin shaft is equipped with pawl, and the worm gear is logical
It crosses torsionspring and connects the pawl, the lower section of the pawl is equipped with ratchet, and the ratchet is fixed on the gear shaft of retarder,
The pawl is equipped with apical tooth corresponding with the slot form of the ratchet.
2. a kind of Simple electronic halting mechanism according to claim 1, which is characterized in that between the worm gear and pin shaft
Equipped with sliding bearing, it is interference fitted between the sliding bearing and worm gear.
3. a kind of Simple electronic halting mechanism according to claim 1, which is characterized in that between the worm gear and pawl
Equipped with the axle sleeve for axial limiting.
4. a kind of Simple electronic halting mechanism according to claim 1, which is characterized in that the P gear driving motor is suitable
When hour hands rotate, passes sequentially through the worm screw, worm gear and torsionspring and the pawl is driven to rotate clockwise, if the apical tooth of pawl
The tooth socket of face ratchet, then the apical tooth of pawl is caught in the tooth socket of ratchet.
5. a kind of Simple electronic halting mechanism according to claim 1, which is characterized in that the P gear driving motor is suitable
When hour hands rotate, passes sequentially through the worm screw, worm gear and torsionspring and the pawl is driven to rotate clockwise, if the apical tooth of pawl
The tooth top of face ratchet, then worm gear persistently applies clockwise torque to pawl by compression torsionspring, when ratchet wheel to tooth
When the apical tooth of slot face pawl, the apical tooth of pawl is caught in the tooth socket of ratchet.
6. a kind of Simple electronic halting mechanism according to claim 4 or 5, which is characterized in that the apical tooth of the pawl
When being caught in the tooth socket of ratchet, is rotated counterclockwise by P gear driving motor and the pawl is driven to rotate counterclockwise, make the pawl
Apical tooth be detached from ratchet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810856918.4A CN108930789B (en) | 2018-07-31 | 2018-07-31 | Simple electronic parking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810856918.4A CN108930789B (en) | 2018-07-31 | 2018-07-31 | Simple electronic parking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108930789A true CN108930789A (en) | 2018-12-04 |
| CN108930789B CN108930789B (en) | 2023-09-29 |
Family
ID=64444406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810856918.4A Active CN108930789B (en) | 2018-07-31 | 2018-07-31 | Simple electronic parking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108930789B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111011023A (en) * | 2019-12-26 | 2020-04-17 | 苏祥威 | Convenient gardens of removing are pruned high bench |
| WO2020181520A1 (en) * | 2019-03-13 | 2020-09-17 | 舍弗勒技术股份两合公司 | P gear locking mechanism for in-wheel drive system, in-wheel drive system, and motor vehicle |
| CN112024725A (en) * | 2020-08-27 | 2020-12-04 | 天津泰正机械有限公司 | Stamping device |
| CN112128370A (en) * | 2019-06-25 | 2020-12-25 | 浙江吉智新能源汽车科技有限公司 | Reduction gear parking mechanism and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4745822A (en) * | 1985-04-19 | 1988-05-24 | Rockwell International Corporation | Two speed axle |
| CN102135176A (en) * | 2011-03-30 | 2011-07-27 | 重庆青山工业有限责任公司 | Parking mechanism of electric automobile |
| CN102278467A (en) * | 2011-05-27 | 2011-12-14 | 重庆青山工业有限责任公司 | P-gear executing mechanism of automotive transmission |
| CN202280828U (en) * | 2011-10-14 | 2012-06-20 | 钱潮轴承有限公司 | Automatic transmission box parking mechanism |
| CN202349192U (en) * | 2011-10-31 | 2012-07-25 | 长城汽车股份有限公司 | Actuating mechanism for electric parking brake |
| CN205401687U (en) * | 2016-02-29 | 2016-07-27 | 浙江万里扬股份有限公司 | Commercial car parking device |
-
2018
- 2018-07-31 CN CN201810856918.4A patent/CN108930789B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4745822A (en) * | 1985-04-19 | 1988-05-24 | Rockwell International Corporation | Two speed axle |
| CN102135176A (en) * | 2011-03-30 | 2011-07-27 | 重庆青山工业有限责任公司 | Parking mechanism of electric automobile |
| CN102278467A (en) * | 2011-05-27 | 2011-12-14 | 重庆青山工业有限责任公司 | P-gear executing mechanism of automotive transmission |
| CN202280828U (en) * | 2011-10-14 | 2012-06-20 | 钱潮轴承有限公司 | Automatic transmission box parking mechanism |
| CN202349192U (en) * | 2011-10-31 | 2012-07-25 | 长城汽车股份有限公司 | Actuating mechanism for electric parking brake |
| CN205401687U (en) * | 2016-02-29 | 2016-07-27 | 浙江万里扬股份有限公司 | Commercial car parking device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020181520A1 (en) * | 2019-03-13 | 2020-09-17 | 舍弗勒技术股份两合公司 | P gear locking mechanism for in-wheel drive system, in-wheel drive system, and motor vehicle |
| CN112128370A (en) * | 2019-06-25 | 2020-12-25 | 浙江吉智新能源汽车科技有限公司 | Reduction gear parking mechanism and vehicle |
| CN111011023A (en) * | 2019-12-26 | 2020-04-17 | 苏祥威 | Convenient gardens of removing are pruned high bench |
| CN111011023B (en) * | 2019-12-26 | 2022-03-01 | 山东金博祥园林工程有限公司 | Convenient gardens of removing are pruned high bench |
| CN112024725A (en) * | 2020-08-27 | 2020-12-04 | 天津泰正机械有限公司 | Stamping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108930789B (en) | 2023-09-29 |
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