CN105485330B - A kind of electronic brake actuator - Google Patents
A kind of electronic brake actuator Download PDFInfo
- Publication number
- CN105485330B CN105485330B CN201510798720.1A CN201510798720A CN105485330B CN 105485330 B CN105485330 B CN 105485330B CN 201510798720 A CN201510798720 A CN 201510798720A CN 105485330 B CN105485330 B CN 105485330B
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- CN
- China
- Prior art keywords
- gear
- motor
- installation
- planetary reduction
- reduction gear
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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.)
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
-
- 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
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
Abstract
The present invention relates to motorcar electric braking technology fields, specifically disclose a kind of electronic brake actuator, it is cooperated by retainer and intracorporal first installation cavity of shell and the second installation cavity, the common relative position limited between motor and planetary reduction gear, guarantee the constant gap between motor and planetary reduction gear, central axis is parallel to each other, so that the structural strength of actuator is bigger, runs more stable.Further, the annular gear structure of planetary reduction gear is integrated with two-stage internal gear, and structural strength is big, easy for installation, and positioning accuracy is high；Snap fit structure between fixing piece and ring gear is simple, and installation effectiveness height is higher with installation accuracy, and installation strength is reliable, in the case where not broken outer fastener and hook, will not fluff naturally or be detached from clamping；The first order sun gear planetary reduction gear input end structure intensity integrally formed with driven pulley is big, easy for installation, and driven pulley is sheathed on the mode on ring gear, saves installation space.
Description
Technical field
The present invention relates to motorcar electric braking technology fields, and in particular to a kind of electronic brake actuator.
Background technique
Electronic brake (Electrical Parking Brake, EPB) refers to and realizes parking by electronic control mode
The technology of braking.Electric parking brake generally includes actuator, and the effect of the actuator is to generate torque, provides the dynamic of braking
Power.In the prior art, torque is usually generated by electric notor, torque is increased by least one gear stage, reduces revolving speed, and most
It is converted into the linear motion of braking mandrel eventually.Currently, although the configurations of electronic brake actuator, most of to execute
Device haves the defects that stability is poor, noise is big.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of structural strengths, and big, stable, the lesser electronics of noise is stayed
Vehicle brake actuator.
In order to solve the above technical problem, the present invention provides technical solution it is as follows: a kind of electronic brake actuator,
Include:
Shell；
The input terminal of planetary reduction gear, the planetary reduction gear is equipped with driven pulley；
The output end of motor, the motor is equipped with drive pulley；
Belt, the belt is for connecting drive pulley and driven pulley；
The second installation for installing the first installation cavity of motor and for installing planetary reduction gear is equipped in the shell
Chamber；
Further include:
Retainer, the retainer have for fixing the first connecting pin of motor upper end and for fixing planetary reduction gear
The second connection end at end；
Motor pressing cover is equipped with the plug assembly that at least two groups are mutually matched between first connecting pin and motor pressing cover,
The cavity for accommodating drive pulley is formed between the motor pressing cover and the first connecting pin, the belt passes through two adjacent groups
Plug assembly is simultaneously connect with drive pulley；
Positioning core axle, the positioning core axle by planetary reduction gear center pass through the driven pulley upper surface and with guarantor
The location hole held in frame second connection end matches.
Further, the plug assembly includes at least the first grafting for being set to the closed-loop two sides being made of the belt
Device, first plug assembly include set on the bolt of the first connecting pin lower surface and inserting set on the motor pressing cover upper surface
Slot.
Further, the plug assembly further includes the second plug assembly, which includes by the first connection
The insert-connecting plate extended downwardly at end margin and the arc block plate upwardly extended by motor pressing cover are equipped with and institute on the arc block plate
State the inserting groove that insert-connecting plate matches.
Further, the upper surface of first connecting pin of retainer is equipped with several protrusions, and the retainer second connects
The upper surface at end is equipped with positioning column.
It further, further include the lid to match with the shell, which is determined by positioning column and protrusion and installed
Position is additionally provided with resilient cushion between the retainer and lid inner wall.
Further, the lower end of the motor is contacted by damper element with shell, and it is fixed that the upper surface of the motor is equipped with
Position slot, the lower surface of the motor pressing cover are equipped with the locating piece to match with the quantity and structure of the locating slot.
Further, the planetary reduction gear is two stage reducer, includes at least first order sun gear, first order planet
Wheel, first order planet-wheel carrier, second level sun gear, second level planetary gear, output panel and ring gear and fixing piece, the internal tooth
Internal circle includes first order internal gear and second level internal gear, and the fixing piece is equipped with the delivery outlet for installing output panel, institute
It states fixing piece and the ring gear is clamped.
Further, the circumferencial direction of the ring gear is equipped with several fixture blocks, and the second of the shell is installed on cavity wall
Equipped with the sliding slot that quantity and structure and the fixture block match, the fixture block is made of vibration-absorptive material.
Further, the driven pulley lower end surface is equipped with the chamber for ring gear where accommodating first order internal gear
Body, the first order sun gear are set in the cavity.
Further, the positioning core axle is fixedly arranged in first order planet-wheel carrier, one end installation of the positioning core axle
There is first order sun gear and pass through driven pulley and is connected with the location hole in retainer second connection end, the positioning core axle
The other end second level sun gear is installed and is connect with the center of output panel.
Electronic brake actuator of the invention passes through retainer and intracorporal first installation cavity of shell and the second installation cavity
It cooperates, the common relative position limited between motor and planetary reduction gear, between guaranteeing between motor and planetary reduction gear
Away from constant, central axis is parallel to each other, so that the structural strength of actuator is bigger, runs more stable.Planetary reduction gear
Annular gear structure, be integrated with two-stage internal gear, structural strength is big, easy for installation, and positioning accuracy is high；Fixing piece and ring gear it
Between snap fit structure it is simple, installation effectiveness is high, and installation accuracy is also higher, and installation strength is reliable, in not broken outer fastener and
In the case where hook, clamping will not be fluffed naturally or is detached from；First order sun gear and the integrally formed planet of driven pulley
Retarder input end structure intensity is big, easy for installation, and driven pulley is sheathed on the mode on ring gear, and it is empty to save installation
Between.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment electronic brake actuator；
Fig. 2 is the structural schematic diagram of the present embodiment shell；
Fig. 3 is the explosive state schematic diagram of the present embodiment retainer；
Fig. 4 is the structural schematic diagram of the present embodiment retainer；
Fig. 5 is the schematic view of the mounting position of the present embodiment retainer and motor；
Fig. 6 is the structural schematic diagram of the present embodiment planetary reduction gear；
Fig. 7 is the explosive state structural schematic diagram of the present embodiment planetary reduction gear.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "inner", "outside" etc. indicate
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, is integrally connected, may be a detachable connection；It can be with
It is the connection inside two elements；It can be directly connected, it can also indirectly connected through an intermediary, for the general of this field
For logical technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Fig. 1 show the structural schematic diagram of the present embodiment electronic brake actuator, and wherein lid 200 is half-sectioned
State.As shown in Figure 1, the sub- parking braking actuator, including shell 100 and lid 200, planet is installed in its shell 100
Retarder 400 and motor 500 are connected with drive pulley 510 in the output end of motor 500, in the input of planetary reduction gear 400
End is connected with driven pulley 10, is connected between drive pulley and driven pulley by belt 600.Preferably, this reality
Applying the belt 600 in example is toothed belt, and drive pulley 510 and driven pulley 10 are toothed wheel.Certainly, non-toothed belt and non-
Toothed wheel equally constitutes the equivalent embodiments of the present embodiment.
As the improvement of the present embodiment, as shown in Fig. 2, being equipped with the first installation for installing motor in its shell 100
Inlet wire slot is arranged close to the position of the first installation cavity 110 in chamber 110 and the second installation cavity 120 for installing planetary reduction gear
130, first installation cavity 110 and the second installation cavity 120 are used to limit the spacing between motor 500 and planetary reduction gear 400.Phase
It answers, further includes Fig. 3, retainer shown in Fig. 4 300, which has first for fixing 500 upper end of motor to connect
End and the second connection end for fixing 400 upper end of planetary reduction gear are connect, the first installation in the retainer 300 and shell 100
Chamber 110 and the second installation cavity 120 cooperate, and the common relative position limited between motor 500 and planetary reduction gear 400 is protected
The constant gap between motor 500 and planetary reduction gear 400 is demonstrate,proved, central axis is parallel to each other, so that the structure of actuator
Intensity is bigger, runs more stable.
As shown in Figure 3, Figure 4, the retainer 300 in the present embodiment have for fix motor upper end the first connecting pin and
For fixing the second connection end of planetary reduction gear upper end.Wherein cooperation motor pressing cover 330 in the first connecting pin is completed to motor 500
Fixation, the plug assembly that is mutually matched of at least two groups is equipped between the first connecting pin and motor pressing cover 330, and in motor pressure
The cavity for accommodating drive pulley 510 is formed between lid 330 and the first connecting pin, and belt 600 is inserted across two adjacent groups
Connection device is simultaneously connect with drive pulley 510.
Further, the plug assembly in the present embodiment includes set on the 2 of closed-loop two sides groups be made of belt 600 the
One plug assembly forms between 2 group of first plug assembly and accommodates the gap 370 that belt 600 passes through.Above-mentioned first plug assembly
Including being set to the bolt 340 of the first connecting pin lower surface and set on the slot 332 of motor pressing cover upper surface.Wherein slot 332
Outer wall is equipped with several flutings, and the material for constituting slot 332 has certain elasticity, is inserted into the mistake of slot 332 in bolt 340
Cheng Zhong plays the role of guidance and correction position, after being inserted into bottom, is fixed to each other.
In the present embodiment, above-mentioned plug assembly further includes the second plug assembly, which includes by first
The insert-connecting plate 350 that connecting pin edge extends downwardly and the arc block plate 334 upwardly extended by motor pressing cover, in the arc block plate
334 are equipped with the inserting groove 333 to match with insert-connecting plate 350.In the collective effect of the first plug assembly and the second plug assembly
Under, retainer 300 and motor pressing cover are relatively fixed.
Further, motor pressing cover 330 is with the mounting means of motor 500 as shown in figure 5, the upper surface of motor 500 is equipped with
At least one locating slot 530, the lower surface of motor pressing cover 330 are equipped with the locating piece to match with the quantity and structure of locating slot 530
335.It is equipped with and is accommodated in 331. installation process of through-hole that motor output shaft 520 passes through on motor pressing cover 330, first by motor
500 are installed in the first installation cavity 110 of shell, and then motor pressing cover 330 is buckled on motor 500, followed by by retainer
300 are buckled on motor pressing cover 330.
The structure of the planetary reduction gear 400 of the present embodiment is as shown in Figure 6, Figure 7, including first order sun gear 13, circumferentially
3 first order planetary gears 40 of arrangement, first order planet-wheel carrier 50, are equipped in the upper surface of its first order planet-wheel carrier 50
For installing the wheel shaft 1 of first order planetary gear 40, first order sun gear 13 is located at the center of first order planet-wheel carrier 50 simultaneously
It is engaged with 3 first order planetary gears 40.It is equipped with second level sun gear 53 in the lower end surface of its first order planet-wheel carrier 50, the
Secondary solar gear 53 and 4 second level planetary gear 60 engages, wherein 4 second level planetary gears 60 are installed on output panel 70
On wheel shaft 2 71.Output spline 73 is fixedly installed in the lower end of above-mentioned output panel 70.
It should be noted that above-mentioned two-stage gear reduction is mounted in ring gear 20.As changing for the present embodiment
Into including first order internal gear 21 and second level internal gear 22 inside above-mentioned ring gear 20, wherein 3 first order planetary gears 40 are equal
It is engaged with first order internal gear 21,4 second level planetary gears 60 are engaged with second level internal gear 22.The ring gear of the present embodiment
Structure is integrated with two-stage internal gear, and structural strength is big, easy for installation, and positioning accuracy is high.
Further, the planetary reduction gear of the present embodiment further includes fixing piece 30, is equipped on the fixing piece 30 for pacifying
The delivery outlet 31 of output panel 70 is filled, above-mentioned fixing piece 30 and ring gear 20 are clamped.A kind of preferred structure, in the circle of ring gear 20
Circumferential direction is equipped with several fixture blocks 23, which is equipped with card slot 24.Correspondingly, being equipped with and card slot 24 on its fixing piece 30
The free end of the fastener 32 that quantity matches, the fastener 32 is equipped with hook 33.It should be noted that above-mentioned fastener 32 is elasticity
Part, hook 33 are extended radially outward by the outer surface of fastener 32.When installation, during hook 33 passes through card slot 24, card
Part 32 is deformed radially inwardly along fixing piece 30, until hook 33 is thorough after card slot 24, fastener 32 restores to reset condition, real
The clamping of existing hook 33 and fixture block 23.
It should be noted that after the completion of the clamping of hook 33 and fixture block 23, lower surface and the fixing piece 30 of ring gear 20
Upper surface fits closely.This kind of snap fit structure is simple, and installation effectiveness is high, and installation accuracy is also higher, and installation strength is reliable,
In the case where not broken outer fastener and hook, clamping will not be fluffed naturally or is detached from.
Another place as the present embodiment improves, and is equipped with driven pulley 10 in the input terminal of its planetary reduction gear, should be from
The lower end surface of dynamic belt pulley 10 is equipped with the cavity 12 for ring gear where accommodating first order internal gear, and first order sun gear
13 are set in cavity 12, preferably, first order sun gear 13 and driven pulley 10 are integrally formed.The planetary reduction gear of the structure
Device input end structure intensity is big, easy for installation, and driven pulley is sheathed on the mode on ring gear, saves installation space.
Wherein driven pulley 10 can be for belt pulley, sprocket wheel or gear etc., in the present embodiment, preferably toothed belt wheel 11.
Further, in order to install and accurate positioning, it is additionally provided with positioning core axle 51 in its first order planet-wheel carrier 50,
One end of the positioning core axle 51 pass through first order sun gear 13 and extend to outside the end face of driven pulley 10 and with retainer the
Location hole 360 on two connecting pins matches, and the other end is equipped with second level sun gear 54 and connect with the center of output panel 70.
Based on the demand for reducing noise, in the present embodiment, the upper surface of 300 first connecting pin of retainer is equipped with several convex
380 are played, the upper surface of 300 second connection end of retainer is equipped with positioning column 310.When installing lid 200, above-mentioned raised 380 He
Positioning column 310 not only acts as positioning action, is also used to install resilient cushion 320.Further, the lower end of motor 500 passes through damping
Element 540 is contacted with shell；Several fixture blocks 23 are equipped in the circumferencial direction of ring gear 20, in the second installation cavity 120 of shell 100
The sliding slot 121 that wall is equipped with quantity and structure and the fixture block matches, and fixture block 23 is made of vibration-absorptive material.
In short, the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not intended to limit the invention, it is all in the present invention
Spirit and principle within made any modifications, equivalent replacements, and improvements etc., should be included in protection scope of the present invention it
It is interior.
Claims (7)
1. a kind of electronic brake actuator, comprising:
Shell (100)；
The input terminal of planetary reduction gear (400), the planetary reduction gear is equipped with driven pulley (10)；
The output end of motor (500), the motor is equipped with drive pulley (510)；
Belt (600), the belt is for connecting drive pulley and driven pulley；
It is characterized in that, being equipped in the shell for installing the first installation cavity (110) of motor and for installing planetary reduction gear
The second installation cavity (120) of device；
Further include:
Retainer (300), the retainer have for fixing the first connecting pin of motor upper end and for fixing planetary reduction gear
The second connection end of upper end；
The upper surface of first connecting pin of retainer is equipped with several raised (380), the upper table of the retainer second connection end
Face is equipped with positioning column (310)；
The lid (200) to match with the shell, which determines installation site by positioning column and protrusion, in the holding
Resilient cushion (320) are additionally provided between frame and lid inner wall；
Motor pressing cover (330) is equipped with the plug assembly that at least two groups are mutually matched between first connecting pin and motor pressing cover,
The cavity for accommodating drive pulley is formed between the motor pressing cover and the first connecting pin, the belt passes through two adjacent groups
Plug assembly is simultaneously connect with drive pulley；
Positioning core axle (51), the positioning core axle by planetary reduction gear center pass through the driven pulley upper surface and with guarantor
The location hole (360) held in frame second connection end matches；
The planetary reduction gear is two stage reducer, includes at least first order sun gear (13), first order planetary gear (40), first
Grade planet-wheel carrier (50), second level sun gear (53), second level planetary gear (60), output panel (70), ring gear (20) and solid
Determine part (30), includes that first order internal gear (21) and second level internal gear (22), the fixing piece are equipped with inside the ring gear
For installing the delivery outlet (31) of output panel, the fixing piece and the ring gear are clamped；
The circumferencial direction of the ring gear is equipped with several fixture blocks (23), and the fixture block (23) is equipped with card slot (24), in fixing piece
(30) it is equipped with the fastener (32) to match with the quantity of card slot (24), the free end of the fastener (32) is equipped with hook (33), institute
Stating fastener (32) is elastic component, and the hook (33) is extended radially outward by the outer surface of fastener (32).
2. electronic brake actuator described in accordance with the claim 1, which is characterized in that the plug assembly is included at least and set
The first plug assembly in the closed-loop two sides being made of the belt, first plug assembly include being set under the first connecting pin
The bolt (340) on surface and slot (332) set on the motor pressing cover upper surface.
3. electronic brake actuator according to claim 2, which is characterized in that the plug assembly further includes second
Plug assembly, second plug assembly include the insert-connecting plate (350) extended downwardly by the first connecting pin edge and by motor pressure
The arc block plate (334) upwardly extended is covered, the inserting groove (333) to match with the insert-connecting plate is equipped on the arc block plate.
4. electronic brake actuator described in accordance with the claim 1, which is characterized in that the lower end of the motor passes through damping
Element (540) is contacted with shell, and the upper surface of the motor is equipped with locating slot (530), and the lower surface of the motor pressing cover is equipped with
The locating piece (335) to match with the quantity and structure of the locating slot.
5. according to the described in any item electronic brake actuators of claim 1-4, which is characterized in that the second of the shell
The sliding slot (121) that installation cavity wall is equipped with quantity and structure and the fixture block matches, the fixture block are made of vibration-absorptive material.
6. electronic brake actuator according to claim 5, which is characterized in that the driven pulley lower end surface is set
There is the cavity (12) for ring gear where accommodating first order internal gear, the first order sun gear is set in the cavity.
7. electronic brake actuator according to claim 6, which is characterized in that the positioning core axle is fixedly arranged on first
In grade planet-wheel carrier, one end of the positioning core axle is equipped with first order sun gear and passes through driven pulley and retainer the
Location hole on two connecting pins is connected, the other end of the positioning core axle be equipped with second level sun gear and in output panel
Heart connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510798720.1A CN105485330B (en) | 2015-11-19 | 2015-11-19 | A kind of electronic brake actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510798720.1A CN105485330B (en) | 2015-11-19 | 2015-11-19 | A kind of electronic brake actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105485330A CN105485330A (en) | 2016-04-13 |
| CN105485330B true CN105485330B (en) | 2019-07-05 |
Family
ID=55672509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510798720.1A Active CN105485330B (en) | 2015-11-19 | 2015-11-19 | A kind of electronic brake actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105485330B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889462A (en) * | 2016-05-20 | 2016-08-24 | 浙江万向精工有限公司 | EPB driver belt wheel structure |
| CN109424675A (en) * | 2017-08-30 | 2019-03-05 | 上海汇众汽车制造有限公司 | Motonsed actuating units and electric parking brake including it |
| CN108547932A (en) * | 2018-04-28 | 2018-09-18 | 合肥巨动力系统有限公司 | Novel parking actuator sealing structure |
| CN110242731A (en) * | 2019-07-24 | 2019-09-17 | 深圳市兆威机电股份有限公司 | Driving mechanism and transmission component |
| CN110450862B (en) * | 2019-07-26 | 2022-05-27 | 浙江双友物流器械股份有限公司 | Driver of compartment layering device |
| CN111873973B (en) * | 2020-07-23 | 2021-04-30 | 平湖锟键汽车科技有限公司 | MGU unit of electron parking structure among new energy automobile |
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| Publication number | Publication date |
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| CN105485330A (en) | 2016-04-13 |
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Address after: 311835 Industrial Zone of Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Wanan Zhiyu Automobile Control System Co.,Ltd. Address before: 311835 Industrial Zone of Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG ZHUJI MANPOWER MACHINERY CO.,LTD. |