CN206054596U - A kind of electronic brake actuator based on gear with small teeth difference - Google Patents
A kind of electronic brake actuator based on gear with small teeth difference Download PDFInfo
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- CN206054596U CN206054596U CN201620910225.5U CN201620910225U CN206054596U CN 206054596 U CN206054596 U CN 206054596U CN 201620910225 U CN201620910225 U CN 201620910225U CN 206054596 U CN206054596 U CN 206054596U
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- electronic brake
- brake actuator
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Abstract
This utility model is related to vehicle parking system technical field, specifically a kind of electronic brake actuator based on gear with small teeth difference.A kind of electronic brake actuator based on gear with small teeth difference, it is characterised in that：Motor is provided with the side of casing, in the opposite side of casing, internal gear is fixed with；The lower section of motor is enclosed in casing by motor hatchcover, the upper shaft of motor connects little gear, the outer rim of little gear is arranged with the inside of one end of belt pulley, gear wheel is abutted on the inside of the other end of belt pulley, the central authorities of gear wheel are embedded with the upper end of eccentric shaft, and the lower end of eccentric shaft connects planetary gear by bearing axle；The outer rim gear engagement connection internal gear of planetary gear；Output panel is provided with below planetary gear, gin pole axle connects eccentric shaft；Floating disc is provided between planetary gear and output panel.Compared with the existing technology, realize amplifying using two-stage and can meet normal amplification ratio demand.
Description
Technical field
This utility model is related to vehicle parking system technical field, specifically a kind of electronics based on gear with small teeth difference
Parking brake actuator.
Background technology
With the continuous development of auto industry technology, electronic brake（EPB, Electrical Park Brake）
Jing becomes a kind of new arrangement for being widely used in passenger car.
The operation principle of electronic brake system is similar with mechanical type parking brake, is produced by brake disc and friction plate
Frictional force reaching the effect of braking.In parking, work(is kept by the manual applying brake force function and clamping force of clamp
Can be producing and keep brake force, so as to reach the purpose of parking.This clamping force is produced and keeps function traditionally to be carried by parking brake
For being replaced by electronic brake more now.Electronic brake is controlled generally by electric-controlled parts, by motor to car
Wheel applies brake force to realize parking function.The more new electronic parking system of other can also be by units such as sensors
Part automatic sensing and measuring and calculating are currently needed for the braking for applying, and increase or decrease brake force by electric-controlled parts, motor etc..
The actuator of electronic parking system, it usually needs the moment of torsion of motor is amplified, enough clampings are finally provided
Power.Traditional design is realizing using planetary mode.But it is such to have the disadvantage：To ensure enough amplification ratios, often
Need three-level to amplify, need part more, relatively costly, space is larger.
The content of the invention
This utility model is to overcome the deficiencies in the prior art, there is provided a kind of electronic brake based on gear with small teeth difference is held
Row mechanism, using more compact, lightweight, the few teeth difference structure of transmission efficiency substitutes planetary gear structure, and realization is put using two-stage
Normal amplification ratio demand can be met greatly.
For achieving the above object, a kind of electronic brake actuator based on gear with small teeth difference is designed, its feature exists
In：Motor is provided with the side of casing, in the opposite side of casing, internal gear is fixed with；The lower section of motor is sealed by motor hatchcover
Close in casing, the upper shaft of motor connects little gear, and the outer rim of little gear is arranged with the inside of one end of belt pulley, belt pulley it is another
Gear wheel is abutted on the inside of one end, the central authorities of gear wheel are embedded with the upper end of eccentric shaft, and the lower end of eccentric shaft connects row by bearing axle
Star-wheel；Baffle plate is provided between described gear wheel and planetary gear, baffle plate is fixed on casing；The outer rim gear engagement of planetary gear connects
Connect internal gear；Output panel is provided with below planetary gear, the central authorities of described output panel are provided with gin pole, gin pole axle
Connect eccentric shaft；Floating disc is provided between planetary gear and output panel；Bearing pin on the planetary gear and sliding bearing pin joint；Institute
State another bearing pin and another sliding bearing pin joint on output panel.The sliding bearing and another sliding bearing and floating disc phase
Match somebody with somebody.
There is wavy spring between the bottom of described motor and motor hatchcover.
The side connecting wire of described motor, wire are moulded in casing, the opposite side connecting interface of casing, interface
It is oriented along the stripping direction of casing or therewith into 60 ~ 90 ° of angles.
The number of teeth of the number of teeth of described planetary gear less than internal gear, number of teeth difference are 1 ~ 3.
Described floating disc is provided with guide groove, channel widths and sliding bearing and the diameter matches of another sliding bearing.
Described internal gear and casing are formed in one structure.
The input shaft of described eccentric shaft is consistent with the semidiameter of internal gear and planetary gear with the off-axis degree of output shaft.
Rolling bearing is provided between described planetary gear and eccentric shaft.
A kind of electronic brake system, a kind of electronic brake based on differential planetary gear train according to right are held
Row mechanism, electronic brake actuator are located at one end of housing, and the output planetary frame of electronic brake actuator leads to
Cross the self-locking parallel moving mechanism of spline connection electronic parking system；Described self-locking parallel moving mechanism abuts one end of piston, living
The other end of plug abuts friction plate, and described friction plate is provided with two panels, and two panels friction plate is located at brake system respectively
The both sides of disk；Described friction plate is supported on support, and support is fixed in automobile chassis system；Another friction plate abuts shell
Body；Described self-locking parallel moving mechanism and piston are located at the inside of housing；Described support and housing are to be slidably connected.
Described self-locking parallel moving mechanism is guilde screw structure.
This utility model is compared with the existing technology, there is provided a kind of electronic brake based on gear with small teeth difference actuator
System, using the K-H-V types planetary reducer of tooth difference zd=1 ~ 3 as moment of torsion structure for amplifying, using more compact, light weight
Change, the few teeth difference structure of transmission efficiency substitutes planetary gear structure, realize amplifying using two-stage and can meet normal amplification ratio need
Ask.Using floating disc type output mechanism, the uniform stressed output of the moment of torsion of eccentric shaft input is realized.
In order to preferably solve above-mentioned technical problem, this utility model provides a kind of electronic brake system, including
Produce and the rotating torque of output torque produces mechanism, torque is converted into into translation and there is the self-locking translation of auto-lock function
Mechanism, for the friction plate rubbed with brake disc, applies piston of the positive thrust to friction plate, constrains friction plate and apply anti-
To the brake caliper housing and support of pressure.It is any one in actuator described above that rotating torque produces mechanism.
Self-locking parallel moving mechanism described in the electronic brake system is guilde screw structure.
Description of the drawings
Fig. 1 is axonometric chart of the present utility model.
Partial exploded views of the Fig. 2 for this utility model actuator.
Explosive views of the Fig. 3 and Fig. 4 for this utility model gear train.
The structural representation of electric parking brake in the embodiment that Fig. 5 is provided for this utility model.
It is motor referring to Fig. 2, Fig. 3, Fig. 4,1,2 is interface, 3 is casing, 4 is upper lid, 5 is little gear, 6 is belt pulley, 7
For gear wheel, 8 is baffle plate, and 9 is eccentric shaft, and 10 is rolling bearing, and 11 is planetary gear, and 12 is internal gear, and 13 is bearing pin, and 14 are cunning
Dynamic bearing, 15 is another sliding bearing, and 16 is floating disc, and 17 is output panel, and 18 is gin pole, and 19 is a pair on output panel
Bearing pin, 20 is wavy spring, and 21 is motor hatchcover, and 22 is wire.
Referring to Fig. 5,23 is another friction plate, and 24 is self-locking parallel moving mechanism, and 25 is piston, and 26 is friction plate, and 28 is shell
Body, 27 is support.
Specific embodiment
This utility model is described further below according to accompanying drawing.
As shown in Figure 1 to Figure 3, motor 1 is provided with the side of casing 3, in the opposite side of casing 3, is fixed with internal gear
12；The lower section of motor 1 is enclosed in casing 3 by motor hatchcover 21, and the upper shaft of motor 1 connects little gear 5, outside little gear 5
Edge is arranged with the inside of one end of belt pulley 6, and gear wheel 7 is abutted on the inside of the other end of belt pulley 6, and the central authorities of gear wheel 7 are embedded with
The upper end of eccentric shaft 9, the lower end of eccentric shaft 9 connect planetary gear 11 by 10 axle of bearing；Between described gear wheel 7 and planetary gear 11
Baffle plate 8 is provided with, baffle plate 8 is fixed on casing 3；The outer rim gear engagement connection internal gear 12 of planetary gear 11；Positioned at planetary gear 11
Lower section be provided with output panel 17, the central authorities of described output panel 17 are provided with gin pole 18, and 18 axle of gin pole connects eccentric shaft 9；
Floating disc 16 is provided between planetary gear 11 and output panel 17；Bearing pin 13 on the planetary gear 11 is sold with sliding bearing 14
Connect；Another bearing pin 19 on the output panel 17 and 15 pin joint of another sliding bearing.The sliding bearing 14 and another sliding axle
Hold 15 to match with floating disc 16.
There is wavy spring 20 between the bottom of motor 1 and motor hatchcover 21.
The side connecting wire 22 of motor 1, wire 22 are moulded in casing 3, the opposite side connecting interface 2 of casing 3, interface
2 are oriented along the stripping direction of casing 3 or therewith into 60 ~ 90 ° of angles.
The number of teeth of the number of teeth of planetary gear 11 less than internal gear 12, number of teeth difference are 1 ~ 3.
Floating disc 16 is provided with guide groove, channel widths and sliding bearing 14 and the diameter matches of another sliding bearing 15.
Internal gear 12 and casing 3 are formed in one structure.
The input shaft of eccentric shaft 9 is consistent with the semidiameter of internal gear 12 and planetary gear 11 with the off-axis degree of output shaft.
Rolling bearing 10 is provided between planetary gear 11 and eccentric shaft 9.
As shown in figure 4, a kind of electronic brake system, according to a kind of described electronic parking based on differential planetary gear train
Brake actuator, electronic brake actuator are located at one end of housing 28, the output of electronic brake actuator
Self-locking parallel moving mechanism 24 of the planet carrier 17 by spline connection electronic parking system；Described self-locking parallel moving mechanism 24 is abutted
One end of piston 25, the other end of piston 25 abut friction plate 26, and described friction plate is provided with two panels, and two panels friction plate point
Not Wei Yu brake system disk both sides；Described friction plate 26 is supported on support 27, and support 27 is fixed on automobile chassis
In system；Another friction plate 23 abuts housing 28；Described self-locking parallel moving mechanism 24 and piston 25 are located at the inside of housing 28；
Described support 27 and housing 28 are to be slidably connected.
Self-locking parallel moving mechanism 24 is guilde screw structure.
Motor 1 is power source, the storage battery energy being input into by interface 2 is converted into kinetic energy, is exported to riveting therewith
In little gear 5, moment of torsion is produced.The moment of torsion of little gear 5 passes to gear wheel 7 through belt pulley 6 and realizes that first order moment of torsion amplifies.Gear
Plate 8 isolates few teeth difference mechanism and the first order amplifies gear train, so as to limit the in-house oils and fatss flowing of few teeth difference.Internal gear 12 is solid
Fixed, the rotating speed of eccentric shaft 9 is equal to the rotating speed of gear wheel 7, is few teeth difference input shaft.Due to rotation and the internal gear 12 of eccentric shaft 9
Restriction, planetary gear 11 both around internal gear 12 axis revolve round the sun and also around own axes rotation.As eccentric shaft 9 needs output revolution
To planetary gear 11 and the loss in efficiency for avoiding producing because of phase mutual friction, therefore there is rolling between eccentric shaft 9 and planetary gear 11
Bearing.The torque output of planetary gear 11 promotes floating disc 16 to rotate to the sliding bearing 14 connect with its axle；Floating disc 16 further through
The another of the sliding bearing 15 connect with 17 axle of output panel promotes output panel 17 to rotate output torque, increases what is turned round so as to play to slow down
Effect.Wherein, the guide groove on floating disc 16 allows sliding bearing 15 radially to move freely so as to reduce eccentricity effect at which,
So that the axis opposed gear case coordinate system of output panel 17 is fixed.Floating disc 16 and sliding bearing wherein on output panel 17
15 coordinate, and reduce friction.This export structure does not have discontinuity point, and part is less, process is simple.Few teeth difference link is second
Level moment of torsion amplifies, and its amplification ratio is i=z1/ (z1-z2).
The numbers of teeth of the wherein z1 for planetary gear 11, the numbers of teeth of the z2 for internal gear 12.Final moment of torsion is defeated by the spline of output panel 17
Go out.As can be seen from the above equation, when internal gear 12 and planetary gear 11 number of teeth difference for 1 when obtained by amplification ratio it is maximum, its size by
The number of teeth of planetary gear 11 is determined.And planetary gear size determines the size of gear-box, therefore from arrangement space utilization ratio,
This scheme recommends the tooth difference of z2-z1=1.
This utility model can apply to a kind of electronic brake system, and which is included as a kind of electronic brake system
The rotating torque production mechanism of system.This brakes includes that brake disc, for the friction plate 26 rubbed with brake disc, is produced
And torque is converted into translation and has the self-locking translation machine of auto-lock function by the rotating torque production mechanism 23 of output torque
Structure 24, applies piston 25 of the positive thrust to friction plate 26, constrains friction plate and apply the brake caliper housing of buffer brake
28, the brake caliper support 27 brakes being integrally attached on chassis system.General driving conditions brake force is by hydraulic coupling
Produce；Parking or special operation condition（Judged by ECU）When, a kind of electronics based on few teeth difference described in the utility model is stayed
Car brake actuator produces torque, Jing gear train amplifying moment, eventually through flower by motor as rotating torque production mechanism
The moment of torsion of output is converted into the thrust of translation, and promotes piston to apply to guilde screw formula self-locking parallel moving mechanism by key output
Normal pressure is to piece in friction plate；On the other hand, brake caliper housing applies pressure to friction plate outer plate, so as to produce for braking
The clamping force of disk.Wherein guilde screw mechanism due to its special angle of rifling design, with auto-lock function, so as to reach parking
When keep clamping force effect.
To sum up, this utility model optimizes the amplification ratio of reducing gear in limited space；Using gear with small teeth difference structure
Realize that moment of torsion amplifies, compact conformation, amplification ratio are high, improve the efficiency of reducing gear and reduce cost.
Claims (11)
1. a kind of electronic brake actuator based on gear with small teeth difference, it is characterised in that：Casing（3）Side in be provided with
Motor（1）, casing（3）Opposite side in be fixed with internal gear（12）；Motor（1）Lower section pass through motor hatchcover（21）Closing
In casing（3）It is interior, motor（1）Upper shaft connect little gear（5）, little gear（5）Outer rim be arranged with belt pulley（6）One end in
Side, belt pulley（6）The other end on the inside of abut gear wheel（7）, gear wheel（7）Central authorities be embedded with eccentric shaft（9）Upper end, partially
Heart axle（9）Lower end pass through bearing（10）Axle connects planetary gear（11）；Described gear wheel（7）With planetary gear（11）Between be provided with gear
Plate（8）, baffle plate（8）It is fixed on casing（3）On；Planetary gear（11）Outer rim gear engagement connection internal gear（12）；Positioned at planet
Wheel（11）Lower section be provided with output panel（17）, described output panel（17）Central authorities be provided with gin pole（18）, gin pole
（18）Axle connects eccentric shaft（9）；Positioned at planetary gear（11）With output panel（17）Between be provided with floating disc（16）；The planetary gear（11）
On bearing pin（13）With sliding bearing（14）Pin joint；The output panel（17）On another bearing pin（19）With another sliding bearing
（15）Pin joint.
2. a kind of electronic brake actuator based on gear with small teeth difference according to claim 1, it is characterised in that：
The sliding bearing（14）With another sliding bearing（15）With floating disc（16）Match.
3. a kind of electronic brake actuator based on gear with small teeth difference according to claim 1, it is characterised in that：
Described motor（1）Bottom and motor hatchcover（21）Between have wavy spring（20）.
4. a kind of electronic brake actuator based on gear with small teeth difference according to claim 1, it is characterised in that：
Described motor（1）Side connecting wire（22）, wire（22）It is moulded in casing（3）It is interior, casing（3）Opposite side connect
Mouthful（2）, interface（2）Be oriented along casing（3）Stripping direction or therewith into 60 ~ 90 ° of angles.
5. a kind of electronic brake actuator based on gear with small teeth difference according to claim 1, it is characterised in that：
Described planetary gear（11）The number of teeth be less than internal gear（12）The number of teeth, the number of teeth difference be 1 ~ 3.
6. a kind of electronic brake actuator based on gear with small teeth difference according to claim 1, it is characterised in that：
Described floating disc（16）It is provided with guide groove, channel widths and sliding bearing（14）With another sliding bearing（15）Diameter
Match somebody with somebody.
7. a kind of electronic brake actuator based on gear with small teeth difference according to claim 1, it is characterised in that：
Described internal gear（12）And casing（3）Be formed in one structure.
8. a kind of electronic brake actuator based on gear with small teeth difference according to claim 1, it is characterised in that：
Described eccentric shaft（9）Input shaft and output shaft off-axis degree and internal gear（12）And planetary gear（11）Semidiameter one
Cause.
9. a kind of electronic brake actuator based on gear with small teeth difference according to claim 1, it is characterised in that：
Described planetary gear（11）With eccentric shaft（9）Between be provided with rolling bearing（10）.
10. a kind of electronic brake system, it is characterised in that：A kind of base according to any one in claim 1 ~ 8
In the electronic brake actuator of differential planetary gear train, electronic brake actuator is located at housing（28）One end, electricity
The output planetary frame of sub- parking brake actuator（17）By the self-locking parallel moving mechanism of spline connection electronic parking system
（24）；Described self-locking parallel moving mechanism（24）Abut piston（25）One end, piston（25）The other end abut friction plate
（26）, described friction plate is provided with two panels, and two panels friction plate is located at the both sides of brake system disk respectively；Described rubs
Pad（26）It is supported on support（27）On, support（27）It is fixed in automobile chassis system；Another friction plate（23）Abut housing
（28）；Described self-locking parallel moving mechanism（24）And piston（25）Positioned at housing（28）Inside；Described support（27）And shell
Body（28）To be slidably connected.
A kind of 11. electronic brake systems according to claim 10, it is characterised in that：Described self-locking translation machine
Structure（24）For guilde screw structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910225.5U CN206054596U (en) | 2016-08-19 | 2016-08-19 | A kind of electronic brake actuator based on gear with small teeth difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910225.5U CN206054596U (en) | 2016-08-19 | 2016-08-19 | A kind of electronic brake actuator based on gear with small teeth difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054596U true CN206054596U (en) | 2017-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620910225.5U Active CN206054596U (en) | 2016-08-19 | 2016-08-19 | A kind of electronic brake actuator based on gear with small teeth difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4296127A1 (en) | 2022-06-24 | 2023-12-27 | FINAN.CO. S.r.l | Electric parking brake actuator |
-
2016
- 2016-08-19 CN CN201620910225.5U patent/CN206054596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4296127A1 (en) | 2022-06-24 | 2023-12-27 | FINAN.CO. S.r.l | Electric parking brake actuator |
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