CN206217873U - Electric booster braking device - Google Patents
Electric booster braking device Download PDFInfo
- Publication number
- CN206217873U CN206217873U CN201621303928.8U CN201621303928U CN206217873U CN 206217873 U CN206217873 U CN 206217873U CN 201621303928 U CN201621303928 U CN 201621303928U CN 206217873 U CN206217873 U CN 206217873U
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- China
- Prior art keywords
- treadle
- power
- assembly
- brake pump
- sliding sleeve
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of electric booster braking device, include power-assisted cylinder body, treadle assembly, treadle back-moving spring, Electric booster and brake pump assembly, the brake pump push rod for receiving brake force is provided with described brake pump assembly, Electric booster includes electric-powered assembly, sliding is arranged in servo-cylinder body and the power-assisted sliding sleeve of sliding driving force is provided by electric-powered assembly, power-assisted sliding sleeve coordinates with the ejection of brake pump push rod, treadle back-moving spring is arranged in axially extending bore and couples with the head end elastic reset of treadle assembly, the head end of described treadle assembly is axially acted on brake pump push rod to the outer end and ejection of the axially extending bore sequentially passed through in the slipping of brake pump push rod direction in alignment pin through hole and power-assisted sliding sleeve.The utility model has the advantages that structure setting rationally, treadle brake force and electric booster braking power mutually decouples.
Description
Technical field
The utility model is related to a kind of automobile fitting brake component, specifically refers to electric booster braking device, can be used for electronic vapour
The fields such as car, hybrid vehicle, pilotless automobile or intelligent driving automobile.
Background technology
The brakes of traditional combustion engine automobile assists driver to produce enough systems using vacuum booster unit mostly
Power, and vacuum source comes from engine or oil-sealed rotary pump.For new-energy automobile（Fuel cell car and pure electric vehicle）
For, no engine provides brake boost to provide vacuum power source, and the brake force only as produced by manpower is to expire
The demand of sufficient service brake.Electric booster braking device can be very good to meet this demand.
In recent years, major automobile and parts manufacturers had released one after another similar EHB.By retrieval,
Company of German Bosch is proposed brand-new EHB on the basis of ESP HEV brakes, referring to Chinese special
Sharp publication number CN103818371A.The structure of the EHB includes pedal simulator, Electric booster, braking
The mechanisms such as pump assembly, but there is problems with it：
It is non-decoupling between pedal simulator and Electric booster, i.e. the driving force of pedal simulator treadle is helped with electronic
The driving force of power device intercouples, while acting on the brake pump push rod of brake pump assembly.Electric booster motor or
When the mechanism of motor output transmission breaks down, the power-assisted failure of Electric booster, driver can only be simulated by pushes pedals
The mode of the treadle of device is braked come the brake pump push rod for driving brake pump assembly.And because pedal simulator is helped with electronic
It is non-decoupling between power device, the pedal force of driver also needs to drive the mechanisms such as the motor of Electric booster to be rotated simultaneously,
And because the motor of Electric booster is in order to realize power-assisted effect higher, it is all the setting of transmission output ratio high, and it is reverse
By the pedal force reverse drive motor of driver, will be extremely difficult, therefore, cause in Electric booster failure, using driving
The pedal force of the person of sailing goes braking, and not only response speed is low, and braking difficulty is big, reduces vehicle safety.
Utility model content
The purpose of this utility model is the shortcoming and defect in order to overcome prior art to exist, and provides a kind of structure setting
Rationally, the electric booster braking device that treadle brake force and electric booster braking power are mutually decoupled.
To achieve the above object, the technical solution of the utility model is to include power-assisted cylinder body, treadle assembly, treadle to reset
Spring, Electric booster and brake pump assembly, are provided with the brake pump top for receiving brake force on described brake pump assembly
Bar, Electric booster includes that electric-powered assembly, sliding are arranged in servo-cylinder body and provide sliding by electric-powered assembly and drives
The power-assisted sliding sleeve of power, power-assisted sliding sleeve coordinates with the ejection of brake pump push rod,
Axially extending bore is provided with power-assisted sliding sleeve, guiding slot port is provided with the outer wall of power-assisted sliding sleeve, described treadle is total
Into in the axially extending bore that is arranged in power-assisted sliding sleeve of sliding, treadle back-moving spring be arranged in axially extending bore and with treadle assembly
Head end elastic reset couples, and the reset being inserted into by guiding slot port in axially extending bore is further fixedly arranged on the power-assisted cylinder body
Spring holder, the outer end elastic spacing of described treadle back-moving spring is supported on back-moving spring alignment pin, and power-assisted sliding sleeve
Axial slip is done by its guiding slot port and back-moving spring alignment pin to coordinate, be provided with back-moving spring alignment pin and be available for treadle total
Into head end axially across alignment pin through hole, the head end of described treadle assembly axially slides to brake pump push rod direction
During sequentially pass through the outer end of axially extending bore in alignment pin through hole and power-assisted sliding sleeve and ejection acts on brake pump push rod
On.
By this setting, treadle assembly is acted on into the transmission process of brake pump push rod and Electric booster is slided by power-assisted
The transmission process that set acts on brake pump push rod mutually decouples settings, and the structure setting, in this way, when braking, it is electronic
Booster first applies brake force in brake pump push rod by power-assisted sliding sleeve first, and promotes brake pump push rod to make piston movement, makes
Brake pump assembly output brake pressure oil is rotated, when there is Electric booster failure, then the head end of treadle assembly
The outer end and ejection for sequentially passing through the axially extending bore in alignment pin through hole and power-assisted sliding sleeve are acted on brake pump push rod, are carried out
Pedal brake, and mutually decoupled with electric booster braking due to its pedal brake, pedal brake dynamic braking response is fast, and brake force will
Ask low, improve the security of vehicle braking.
Further set is that described electric-powered assembly includes motor and the few teeth difference linked with motor output shaft
Reductor.By this setting, dynamic retarding output is carried out preferably by few teeth difference reductor, the reductor can obtain bigger
Output gearratio.And because the above-mentioned decoupling of the application is set, the few teeth difference that can set this big output gearratio is slowed down
Machine, carries out brake power output, and without considering that treadle assembly cannot carry out asking for footbrake because of its electric boosted failure
Topic.
It is that gear shaft is linkedly set with the output shaft of described few teeth difference reductor further to set, and described power-assisted is slided
The outer wall side of set is provided with the driving rack being connected with gear spindle drive, and the outer wall of described power-assisted sliding sleeve is relative to driving cog
It is smooth spigot surface on the opposite side of bar side, is rotated in described servo-cylinder body and be provided with roller bearing, the roller bearing and power-assisted
The smooth spigot surface of sliding sleeve rolls connection and coordinates.
By this setting, few teeth difference reductor only needs to be driven power-assisted sliding sleeve by gear shaft, and opposite side is by rolling
Axle carries out rolling support, compared to two gear shaft driving structures of prior art, for assembly precision low, the stable transmission of requirement
Property is good, and reduces processing cost.
The variable rate spring that further sets that to be described treadle back-moving spring be, the stiffness coefficient of the variable rate spring is from stepping on
One end of bar back-moving spring correspondence treadle assembly is gradually incremented by setting to corresponding one end of back-moving spring alignment pin.By originally setting
Put, treadle back-moving spring for providing the analog feedback power of footbrake to driver, and leads to when treadle assembly carries out foot-operated
This setting variable rate spring is crossed, foot-operated feedback force can be preferably provided, simulate the validity of orthodox car footbrake.
Further setting is that the side of described treadle back-moving spring correspondence back-moving spring alignment pin is provided with spring housing, should
The outer end limited support of spring housing is positioned at the inner of back-moving spring alignment pin, the centrally disposed confession treadle assembly head of the spring housing
Hold through spring housing centre bore.By this setting, the convenient outer end to treadle back-moving spring is positioned and is supported, and structure sets
Meter is reasonable.
It is that described brake pump assembly includes twin-stage Cylinder for Parallel Connection further to set, and brake pump top rod driving is arranged at
The input of twin-stage Cylinder for Parallel Connection.
Further setting is that the input of described brake pump push rod is linkedly set with brake pump push rod input linkage board, institute
The axial outer end face ejection of the power-assisted sliding sleeve stated is supported on brake pump push rod input linkage board, and the input linkage of brake pump push rod
The center of plate is fixedly installed the cushion pad coordinated with the head end ejection of treadle assembly.By this setting so that power-assisted sliding sleeve
The drive mechanism that the head end of the drive mechanism and pedal assembly that act on brake pump push rod acts on brake pump push rod is mutually arranged
Without interruption, it is rationally distributed, stable transmission.
Further set is that described treadle assembly includes treadle, treadle linkage set and treadle set, described treadle linkage
Set is fixedly installed in the input that treadle covers, and treadle is fixed and is inserted in treadle linkage set, the outer wall that described treadle covers
On be arranged with the damping sleeve coordinated with the sliding of the axially extending bore of power-assisted sliding sleeve.By this setting so that treadle assembly is slided in power-assisted
Sliding in set has more preferable damping force, improves foot-operated feedback force-responsive.
In sum, the utility model has the advantages that：Reasonable in design, stable transmission reliability, and treadle brake force
Mutually decoupled with electric booster braking power, pedal brake dynamic braking response is fast, and required braking force is low, improves the peace of vehicle braking
Quan Xing.
The utility model is described further with reference to specification drawings and specific embodiments.
Brief description of the drawings
Fig. 1 the utility model specific embodiment structural representations；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the B-B sectional views of Fig. 1；
Fig. 4 is the side view of power-assisted sliding sleeve；
Fig. 5 is the top view of power-assisted sliding sleeve；
Fig. 6 is the utility model partial structural diagram；
Fig. 7 is the decomposing schematic representation of Fig. 6；
Fig. 8 is the view sub-anatomy of Fig. 6.
Specific embodiment
The utility model is specifically described below by embodiment, is served only for carrying out further the utility model
Explanation, it is impossible to be interpreted as the restriction to the utility model protection domain, the technician in the field can be according to above-mentioned practical new
The content of type makes some nonessential modifications and adaptations to the utility model.
The utility model specific embodiment as shown in figures 1-8, includes power-assisted cylinder body 1, treadle assembly 2, treadle multiple
Position spring 3, Electric booster 4 and brake pump assembly 5, are provided with the system for receiving brake force on described brake pump assembly 5
Dynamic pump push rod 51, Electric booster 4 includes that electric-powered assembly, sliding are arranged in power-assisted cylinder body 1 and by electric-powered assembly
The power-assisted sliding sleeve 41 of sliding driving force is provided, the electric-powered assembly described in the present embodiment includes motor 42 and and motor
The few teeth difference reductor 43 of output shaft linkage, few teeth difference reductor 43 is the ripe gear drive of this area, the present embodiment
No longer it is described in detail, in addition, power-assisted sliding sleeve 41 coordinates with the ejection of brake pump push rod 51, axle is provided with described power-assisted sliding sleeve 41
To through hole 411, guiding slot port 412 is provided with the outer wall of power-assisted sliding sleeve 41, the front end sliding of described treadle assembly 2 is arranged at
In axially extending bore 411 in power-assisted sliding sleeve 41, treadle back-moving spring 3 be arranged in axially extending bore 411 and with the head of treadle assembly 2
Hold 21 elastic resets to couple, be further fixedly arranged on the power-assisted cylinder body 1 and be inserted into axially extending bore by guiding slot port 412
Back-moving spring alignment pin 11, the outer end elastic spacing of described treadle back-moving spring 3 is supported on back-moving spring alignment pin 11, and
Power-assisted sliding sleeve 41 does axial slip and coordinates by its guiding slot port 412 and back-moving spring alignment pin 11, back-moving spring alignment pin 11
On be provided be available for the head end of treadle assembly axially across alignment pin through hole 111, the head end of described treadle assembly 2 is in its axle
To the axially extending bore sequentially passed through in the direction slipping of brake pump push rod 51 in alignment pin through hole 111 and power-assisted sliding sleeve 41
Simultaneously ejection is acted on brake pump push rod 51 for 411 outer end.
Gear shaft 44 is linkedly set with the output shaft of the few teeth difference reductor 43 described in the present embodiment, described power-assisted is slided
The outer wall side of set 41 is provided with the driving rack 413 being connected with gear spindle drive, and the outer wall of described power-assisted sliding sleeve 41 is relative
In being smooth spigot surface 414 on the opposite side of driving rack side, rotated in described power-assisted cylinder body 1 and be provided with roller bearing
12, the roller bearing 12 is rolled with the smooth spigot surface 414 of power-assisted sliding sleeve and couples cooperation.
Treadle back-moving spring 3 described in the present embodiment is variable rate spring, and the stiffness coefficient of the variable rate spring is from treadle
One end of back-moving spring correspondence treadle assembly is gradually incremented by setting to corresponding one end of back-moving spring alignment pin.
In addition, the side of the corresponding back-moving spring alignment pin 11 of described treadle back-moving spring 3 is provided with spring housing 12, the bullet
The outer end limited support of spring set 12 is positioned at the inner of back-moving spring alignment pin 11, and the centrally disposed confession treadle of the spring housing 12 is total
Into the spring housing centre bore 121 that head end is passed through.
Preferably, the brake pump assembly 5 described in the present embodiment includes twin-stage Cylinder for Parallel Connection 52, brake pump push rod
51 drive the input for being arranged at twin-stage Cylinder for Parallel Connection.Twin-stage Cylinder for Parallel Connection 52 is the ripe accessory of this area, this implementation
Example is no longer described in detail.
In addition, the input of described brake pump push rod 51 is linkedly set with brake pump push rod input linkage board 53, it is described
Power-assisted sliding sleeve 41 the ejection of axial outer end face be supported in brake pump push rod input linkage board 53 on, and brake pump push rod input connection
The center of dynamic plate 53 is fixedly installed the cushion pad 531 coordinated with the head end ejection of treadle assembly.
Additionally, preferably, described treadle assembly 2 includes treadle 22, treadle linkage set 23 and treadle set 24, described
Treadle linkage set 23 be fixedly installed on treadle set 24 input in, and treadle 22 fix be inserted in treadle linkage set 23 in,
The damping sleeve 241 coordinated with the axially extending bore sliding of power-assisted sliding sleeve is arranged with the outer wall of described treadle set 24.
Claims (7)
1. a kind of electric booster braking device, include power-assisted cylinder body, treadle assembly, treadle back-moving spring, Electric booster and
Brake pump assembly, is provided with the brake pump push rod for receiving brake force on described brake pump assembly, Electric booster includes
Electric-powered assembly, sliding are arranged in servo-cylinder body and the power-assisted sliding sleeve of sliding driving force are provided by electric-powered assembly, help
Power sliding sleeve coordinates with the ejection of brake pump push rod, it is characterised in that：
Axially extending bore is provided with power-assisted sliding sleeve, guiding slot port is provided with the outer wall of power-assisted sliding sleeve, described treadle assembly is slided
Shifting is arranged in the axially extending bore in power-assisted sliding sleeve, treadle back-moving spring be arranged in axially extending bore and with the head end of treadle assembly
Elastic reset couples, and the back-moving spring being inserted into by guiding slot port in axially extending bore is further fixedly arranged on the power-assisted cylinder body
Alignment pin, the outer end elastic spacing of described treadle back-moving spring is supported on back-moving spring alignment pin, and power-assisted sliding sleeve passes through
Its guiding slot port does axial slip cooperation with back-moving spring alignment pin, is provided with back-moving spring alignment pin and is available for treadle assembly
Head end axially across alignment pin through hole, the head end of described treadle assembly is axially to brake pump push rod direction slipping
In sequentially pass through the outer end of axially extending bore in alignment pin through hole and power-assisted sliding sleeve and ejection is acted on brake pump push rod.
2. a kind of electric booster braking device according to claim 1, it is characterised in that：Described electric-powered assembly bag
Include motor and the few teeth difference reductor linked with motor output shaft.
3. a kind of electric booster braking device according to claim 2, it is characterised in that：Described few teeth difference reductor
Gear shaft is linkedly set with output shaft, the outer wall side of described power-assisted sliding sleeve is provided with the transmission being connected with gear spindle drive
Tooth bar, is smooth spigot surface on the opposite side of the outer wall relative to driving rack side of described power-assisted sliding sleeve, described
Rotated in servo-cylinder body and be provided with roller bearing, the roller bearing is rolled with the smooth spigot surface of power-assisted sliding sleeve and couples cooperation.
4. a kind of electric booster braking device according to claim 1, it is characterised in that：Described treadle back-moving spring pair
The side of back-moving spring alignment pin is answered to be provided with spring housing, the outer end limited support of the spring housing is positioned at back-moving spring alignment pin
The inner, the spring housing centre bore that the centrally disposed confession treadle assembly head end of the spring housing is passed through.
5. a kind of electric booster braking device according to claim 1, it is characterised in that：Described brake pump assembly includes
There is twin-stage Cylinder for Parallel Connection, brake pump top rod driving is arranged at the input of twin-stage Cylinder for Parallel Connection.
6. a kind of electric booster braking device according to claim 1, it is characterised in that：Described brake pump push rod it is defeated
Enter end and be linkedly set with brake pump push rod input linkage board, the axial outer end face ejection of described power-assisted sliding sleeve is supported in brake pump
On push rod input linkage board, and the center of brake pump push rod input linkage board is fixedly installed and matches somebody with somebody with the head end ejection of treadle assembly
The cushion pad of conjunction.
7. a kind of electric booster braking device according to claim 1, it is characterised in that：Described treadle assembly includes stepping on
Bar, treadle linkage set and treadle set, described treadle linkage set are fixedly installed in the input of treadle set, and treadle is fixed and inserted
In treadle linkage set, the damping coordinated with the axially extending bore sliding of power-assisted sliding sleeve is arranged with the outer wall that described treadle covers
Set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621303928.8U CN206217873U (en) | 2016-11-30 | 2016-11-30 | Electric booster braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621303928.8U CN206217873U (en) | 2016-11-30 | 2016-11-30 | Electric booster braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206217873U true CN206217873U (en) | 2017-06-06 |
Family
ID=58783721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621303928.8U Withdrawn - After Issue CN206217873U (en) | 2016-11-30 | 2016-11-30 | Electric booster braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206217873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106627549A (en) * | 2016-11-30 | 2017-05-10 | 浙江三星机电股份有限公司 | Electric boost braking device |
-
2016
- 2016-11-30 CN CN201621303928.8U patent/CN206217873U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106627549A (en) * | 2016-11-30 | 2017-05-10 | 浙江三星机电股份有限公司 | Electric boost braking device |
| CN106627549B (en) * | 2016-11-30 | 2023-03-10 | 浙江三星机电股份有限公司 | Electric booster brake device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200714 Address after: 325000 Kun Ao Road, Pingyang Economic Development Zone, Wenzhou, Zhejiang Patentee after: ZHEJIANG SANXING MECHANICAL & ELECTRONICAL STOCK Co.,Ltd. Address before: 325000 Kun Ao Road, Pingyang Economic Development Zone, Wenzhou, Zhejiang Co-patentee before: EXCE INTELLIGENT EQUIPMENT (WENZHOU) Co.,Ltd. Patentee before: ZHEJIANG SANXING MECHANICAL & ELECTRONICAL STOCK Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170606 Effective date of abandoning: 20230310 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170606 Effective date of abandoning: 20230310 |