CN109424675A - Motonsed actuating units and electric parking brake including it - Google Patents
Motonsed actuating units and electric parking brake including it Download PDFInfo
- Publication number
- CN109424675A CN109424675A CN201710763052.8A CN201710763052A CN109424675A CN 109424675 A CN109424675 A CN 109424675A CN 201710763052 A CN201710763052 A CN 201710763052A CN 109424675 A CN109424675 A CN 109424675A
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- CN
- China
- Prior art keywords
- torque increase
- deceleration torque
- increase mechanism
- actuating units
- motonsed actuating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
Abstract
The present invention provides a kind of motonsed actuating units and including its electric parking brake, the motonsed actuating units include housing assembly and the deceleration torque increase mechanism assembly that is contained in the housing assembly, the housing assembly includes upper housing and lower case, the deceleration torque increase mechanism assembly includes: transmission device, it is arranged in the upper housing of the housing assembly, for torque increase of slowing down；Torque drive is arranged in the lower case of the housing assembly, connect with the transmission device, for generating torque；The transmission device includes first order deceleration torque increase mechanism, second level deceleration torque increase mechanism and third level deceleration torque increase mechanism, wherein the second level deceleration torque increase mechanism and the third level deceleration torque increase mechanism are made of epicyclic reduction gear unit.This invention simplifies mounting process, and extend the service life of mechanism, improve the operational efficiency of mechanism while reducing the generation of operation noise.
Description
Technical field
The present invention relates to motor vehicle braking systems field, in particular to a kind of motonsed actuating units and the electronics including it are stayed
Vehicle brake.
Background technique
In recent years, in motor vehicle braking systems field, electric parking brake (EPB) is since it is in the application of market
Convenience and comfort are more and more mechanically integrated drum brake in formula parking brake (IPB) and disk instead of traditional
Device (DIH).Due to its can by determine driver operation be intended to, by electric current drive brake, carry out Automatic-clamping and
Release function, to greatly improve the comfort of pilot control vehicle.
Electric parking brake (EPB) is to increase a set of motonsed actuating units on former integrated form caliper to be formed.However,
The major function of motonsed actuating units is to drive electric motor by electric current and will drive with the deceleration torque increase mechanism of motor cooperation
Electric current is converted to torque, and the main operational principle of integrated form parking brake caliper is by rotation screw thread pair that motonsed actuating units are defeated
Rotation torque out is converted into linear thrust, so that brake piston be pushed to move, brake block is compacted in brake disc and generates folder
Clamp force.
Since electric parking brake (EPB) is mounted and fixed on the inside of wheel using generally rigid, the shell of brake
Body assembly and motonsed actuating units can be slid axially by its internal guiding mechanism.Simultaneously as wheel inner space and braking
Device structure is limited, more demanding to the spatial constructional dimensions of motonsed actuating units.
In order to guarantee to reach target parking performance requirement, motonsed actuating units applied currently on the market are generally used
Three-level deceleration torque increase mechanism obtains bigger torque output with this (usual reduction ratio is 122:1).But with deceleration torque increase
Mechanism step of reduction increases, and structure design also becomes increasingly complex, and the use of multi-stage speed-reducing torque increase mechanism leads to operational efficiency
Decline, potential abrasion possibility increase leads to service life decline, the complexity of mechanism and adequately fixation causes to transport
The increase of Row noise, these are unfavorable for the practical application of motonsed actuating units, while also will affect motonsed actuating units application
When comfort.
Therefore, it is improved and is designed on the basis of the mainstream applications motonsed actuating units of existing market and a had both been able to satisfy
Use demand, while taking into account that operational efficiency is high, the service life is long, low noise motonsed actuating units are necessary again.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome in the prior art motonsed actuating units low efficiency, service life it is low etc.
Defect provides a kind of motonsed actuating units and the electric parking brake including it.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of motonsed actuating units are used for electric parking brake, and the motonsed actuating units include housing assembly and appearance
The deceleration torque increase mechanism assembly being contained in the housing assembly, the housing assembly includes upper housing and lower case, and feature exists
In the deceleration torque increase mechanism assembly includes:
Transmission device is arranged in the lower case of the housing assembly, for torque increase of slowing down；
Torque drive is arranged in the lower case of the housing assembly, connect with the transmission device, for generating
Torque；
The transmission device includes first order deceleration torque increase mechanism, second level deceleration torque increase mechanism and third level deceleration torque increase
Mechanism, wherein the second level deceleration torque increase mechanism and the third level deceleration torque increase mechanism are by epicyclic reduction gear unit structure
At.
According to one embodiment of present invention, the first order deceleration torque increase mechanism by belt drive unit form structure
At design has band tooth, active of the belt tension in first order deceleration torque increase mechanism on the belt of the belt drive unit
Between side belt pulley and the slave end belt pulley of first order deceleration torque increase mechanism.
According to one embodiment of present invention, the motonsed actuating units further include support device, and the support device is set
It sets in the housing assembly, for fixing the transmission device；
The support device includes being mutually clamped fixed upper supporting piece and lower support element, and row is supported on the lower support element
The side of star mechanical reduction gear be integrated with second level deceleration torque increase mechanism internal gear and third level deceleration torque increase mechanism it is interior
Gear.
According to one embodiment of present invention, the side of the torque drive is supported to be integrated on the lower support element
The boss of the fixed torque drive, the boss cooperate with the groove on the torque drive, are used for restraint
The rotation of square driving device.
According to one embodiment of present invention, the side that epicyclic reduction gear unit is fixed on the upper supporting piece is formed with
The bearing hole of fixed center transmission shaft.
According to one embodiment of present invention, the support device further includes the retainer of planetary gear mechanism, the guarantor
It holds frame and the pinion frame of the third level deceleration torque increase mechanism and the internal gear of the third level deceleration torque increase mechanism is set
Outside.
According to one embodiment of present invention, the deceleration torque increase mechanism assembly further includes damping device, the damping dress
It installs between the support device and the enclosure interior cavity, is used to support deceleration torque increase mechanism assembly.
According to one embodiment of present invention, the damping device be round, L-type shape, T-type shape, wire nail shape, bulk or
It is cyclic annular.
According to one embodiment of present invention, the damping device uses the elastomer with different spring damping coefficients
Material is made.
The invention also discloses a kind of electric parking brakes, it is characterized in that, the electric parking brake includes such as
The motonsed actuating units are gone up, and the rotary motion for generating brake actuator is converted to the conversion of linear motion
Device.
The positive effect of the present invention is that:
Motonsed actuating units of the present invention and including its electric parking brake to the support knot of transmission device building block
Optimization is improved in terms of structure and operation noise, mounting process is not only simplified, and extend the service life of mechanism, mentions
The operational efficiency of Sheng Liao mechanism, the generation for reducing operation noise simultaneously.Motonsed actuating units of the present invention pass through integrated support dress
The support and fixation set, simplify the number of parts of transmission mechanism, promote each mechanism relative position precision, while also improving biography
The operational efficiency of dynamic device, eliminating may be because being mechanically connected the resistance to relaxation risk generated long afterwards when bearing top load.
Detailed description of the invention
The above and other feature of the present invention, property and advantage will pass through description with reference to the accompanying drawings and examples
And become apparent, identical appended drawing reference always shows identical feature in the accompanying drawings, in which:
Fig. 1 is the perspective view of deceleration torque increase mechanism assembly in motonsed actuating units of the present invention.
Fig. 2 is the schematic diagram of internal structure of motonsed actuating units of the present invention.
Fig. 3 is the entirety sectional view of motonsed actuating units of the present invention.
Fig. 4 is the explosive view of motonsed actuating units of the present invention.
Specific embodiment
For the above objects, features and advantages of the present invention can be clearer and more comprehensible, below in conjunction with attached drawing to tool of the invention
Body embodiment elaborates.
The embodiment of the present invention is described with detailed reference to attached drawing now.Now with detailed reference to preferred implementation of the invention
Example, its example is shown in the drawings.In the case of any possible, phase will be indicated using identical label in all the appended drawings
Same or similar part.
In addition, the present invention is said although term used in the present invention is selected from public term
Some terms mentioned in bright book may be that applicant is judged to carry out selection as his or her, and detailed meanings are retouched this paper's
Illustrate in the relevant portion stated.
Furthermore, it is desirable that not only by used actual terms, and be also to the meaning contained by each term
To understand the present invention.
Fig. 1 is the perspective view of deceleration torque increase mechanism assembly in motonsed actuating units of the present invention.Fig. 2 is the electronic execution of the present invention
The schematic diagram of internal structure of unit.Fig. 3 is the entirety sectional view of motonsed actuating units of the present invention.Fig. 4 is the electronic execution of the present invention
The explosive view of unit.
As shown in Figures 1 to 4, the invention discloses a kind of motonsed actuating units 100, are used for electric parking brake, electricity
Dynamic execution unit 100 includes housing assembly 110 and the deceleration torque increase mechanism assembly 120 being contained in housing assembly 110.Shell is total
It include upper housing 111 and lower case 112 at 110.Deceleration torque increase mechanism assembly 120 includes transmission device 130 and torque driving dress
Set 140, wherein transmission device 130 is arranged in the lower case 112 of housing assembly 110, for torque increase of slowing down.Torque driving dress
It sets 140 to be arranged in the lower case 112 of housing assembly 110, be connect with transmission device 130, for generating torque.Transmission device
130 include first order deceleration torque increase mechanism 150, second level deceleration torque increase mechanism 160 and third level deceleration torque increase mechanism 170,
Middle second level deceleration torque increase mechanism 160 and third level deceleration torque increase mechanism 170 are made of epicyclic reduction gear unit.Electronic execution
Unit 100 further includes support device 180, and support device 180 is arranged in housing assembly 110, is used for fixed conveyor device 130.
Preferably, lower case 112 is designed for accommodating integral type deceleration torque increase mechanism assembly 120, therefore lower case 112
Key structural feature be empty with the cylindrical type for accommodating torque drive 140 in integral type deceleration torque increase mechanism assembly 120
Chamber 113, and the irregular cavity 114 for accommodating transmission device 130 and support device 180.Meanwhile holding in lower case 112
Receiving the side of planetary gear speed-reduction torque increase mechanism torque output device 171 of third level deceleration torque increase mechanism 170 is provided with cylindrical type
Through-hole 172, cylindrical type through-hole 172 and cylindrical cavity 113,114 intercommunication of irregular cavity simultaneously together form lower case 112
Internal cavity structures.
In addition, the formation of integral type has including conductive electrode in the side of the cylindrical cavity 113 of lower case 112
Connector mechanism, the connector structure are powered and are controlled to torque drive 140 by conductive electrode.
Preferably, upper housing 111 is in cover shape, mainly has the function of protecting integral type deceleration torque increase mechanism assembly 120,
And the function of sealing.In another embodiment, upper housing 111 also can integrate connector mechanism.Slow down when integral type and increases
After turning round the loading lower case 112 of mechanism assembly 120, lower case 112 is sealed with upper housing 111 by welding.Welding side herein
Formula is preferably ultrasonic bonding, naturally it is also possible to which selection uses laser welding mode.
As Fig. 1 to Fig. 3 shows each component and its relative position, structural relation of support device 180.Specifically, it supports
Device 180 is made of upper supporting piece 181, lower support element 182 and retainer 183.Wherein, upper supporting piece 181 and lower support element 182
It is mutually clamped fixation by three mutually matched claw 184a-c and groove 185a-c, so that cage modle cavity is formed, to hold
Receive the first order deceleration torque increase mechanism 150 of transmission device 130.Lower support element 182 and retainer 183 pass through three mutual cooperation machines
Tool plugs together connector 185d-f and 1831d-f (due to view direction in Fig. 1,185f and 1831f is not shown) and is mutually clamped fixation,
To form cage chamber, to accommodate second level deceleration torque increase mechanism 160 and third level deceleration torque increase mechanism 170.
Preferably, the plate-like main body of upper supporting piece 181 is provided with the through-hole 1811 for loss of weight and is used in the main body of plate
In the reinforcing rib 1812 of strengthen rigidity.Meanwhile second level deceleration torque increase mechanism 160 and the third level are fixed on upper supporting piece 181
The side of deceleration torque increase mechanism 170 is formed with the bearing hole 1813 of fixed center transmission shaft 186, and bearing hole 1813 is for guaranteeing
Center driving axis 186 can relative to rotate fixedly without deflect.Meanwhile by bearing hole 1813 to center transmission shaft
186 support and fixed function, it is ensured that the row of second level deceleration torque increase mechanism 160 and third level deceleration torque increase mechanism 170
The stability of star gear mechanism during the motion.
The other side on upper supporting piece 181 is formed with for the master end belt pulley of first order deceleration torque increase mechanism 150
151 through-holes 1814 passed through, through-hole 1814 are main for guaranteeing in the assembling process of integral type deceleration torque increase mechanism assembly 120
Dynamic side belt pulley 151 can be passed through and be mounted on the central axis 141 of torque drive 140.
Connector 184a-c is plugged together in three machinery that the plate-like body side of upper supporting piece 181 is formed with cantilever-shaped band,
It is cantilever-shaped plug together connector 184a-c be vertically to ladder-like upper supporting piece 181 and on the corresponding position of lower support element 182 insert
It closes connector 185a-c and is respectively cooperating with the relative position for fixing upper supporting piece 181.
In addition, being formed in the side of the plate-like body of upper supporting piece 181 with poroid cylinder boss 187, cylinder boss 187
For fixing wire nail shape damping device.
Particularly, the stepped structure of lower support element 182, and there are three insert vertically and in arm machinery for tool on it
Close connector 185a-c.Wherein, the space layout and upper supporting piece 181 for plugging together connector 185a-c plug together connector 185a-c
It respectively corresponds.Upper supporting piece 181 and lower branch can be limited by the length that arm machinery plugs together connector 185a-c, 184a-c
The relative position of support member 182 and distance.
By above-mentioned this mode, fixed structure space is limited between upper supporting piece 181 and lower support element 182,
This structure space can effectively limit the axis of the slave end belt pulley 152 of the first deceleration torque increase mechanism 150 in the process of running
To play, be conducive to the stability for keeping actuator movement.
In the bottom side of lower support element 182, laterally integrally formed there are two load-bearing parts 1821 (because of view location original in such as Fig. 3
Because can only see a load-bearing part), it protrudes and is surrounded by damping shock absorption unit 191 straight down.With damping shock absorption list
The load-bearing part 1821 that member 191 is surrounded is arranged to, for the 112 inner support integral type of lower case in motonsed actuating units 100
Deceleration torque increase mechanism assembly 120.
Lower support element 182 is configured to the spatial position of limitation transmission device 130 and torque drive 140.Thus,
It is configured to a columned accommodation space 1822 close to the bottom side of one end of planetary gear mechanism in lower support element 182, this
The inside of the cylindric accommodation space 1822 at place is hollow thin-wall formula structure, and integral type is integrated with second level deceleration and increases on the inside of it
Turn round the internal gear of mechanism 160 and the internal gear of third level deceleration torque increase mechanism 170.The present invention is designed by integral type integrated form,
It can guarantee the accurate of the relative position of second level deceleration torque increase mechanism 160 and third level deceleration torque increase mechanism 170, be conducive to mention
The stability of high planetary gear mechanism in the process of running, to improve mechanism operational efficiency, reduce noise probability of happening, promoted
Mechanism runs service life.
In addition, in lower support element 182, close to the formation of the side of torque drive 140, there are two fixing lug boss 1823, convex
Groove 142 corresponding with torque drive 140 cooperates platform 1823 respectively, the rotation for restraining moment driving device 140.
It supports the side of torque drive 140 to be provided on lower support element 182 to pass through and consolidate for torque drive 140
Fixed through-hole 1824, through-hole 1824 are used to limit the swing of torque drive 140.In an optional embodiment, under
Supporting element 182 also could be formed with the mechanism of Tightening moment driving device 140, such as fastening bolt.
Further, the planetary gear mechanism retainer 183 in support device 180 is arranged in third level deceleration torque increase mechanism
The outside of 170 pinion frame 173 and the internal gear of third level deceleration torque increase mechanism 170, for both fixed relative position,
But pinion frame 173 is not influenced and is rotated relative to internal gear.Retainer 183 is at simple annular, annular in the present embodiment
Side with can the machinery of space structure corresponding with lower support element 182 position plug together connector 185d-f and 1831d-f, with
Make retainer 183 being mounted on lower support element 182 with precise match.By the above-mentioned means, can guarantee pinion frame
Do not deviate from from internal gear.
By the support and fixation of above-mentioned integrated support device, the number of parts of transmission mechanism is simplified, promotes each machine
Structure relative positional accuracy, while also improving the operational efficiency of transmission device eliminates machinery when may be because bearing top load and connects
Connect the resistance to relaxation risk generated long afterwards.
In said mechanism, the effect of support device 180 is the opposite of each components in the fixed conveyor device for solid
Position can be such that torque drive and transmission device and damping device is propping up by the support fixed function of support device 180
180 over-assemble of support arrangement becomes the sub-unit of each independent manipulation.
It to guarantee each gear space relative position accurate, compact in motonsed actuating units and stablizing, while being most
The number of parts for simplifying transmission mechanism is measured, the part function of integration section transmission mechanism takes into account support again simultaneously in support device
Fixed function is necessary.
As shown in figure 3, the overall structure cross-sectional view acceptance of the bid of motonsed actuating units 100 shows integral type deceleration torque increase mechanism
Each modular construction and its positional relationship of the damping device 190 of assembly 120.Wherein, cylindrical type damping shock absorption unit 192 and lower casing
The cooperation of body 112 to support torque drive 140, another cylindrical type damping shock absorption unit 193 and lower case 112 cooperate to
The second level deceleration torque increase mechanism 160 and third level deceleration torque increase mechanism 170 of support planetary gears mechanism.Wire nail shape vibration absorption unit
194 cooperate the total to support integral type deceleration torque increase mechanism assembly 120 with upper housing 181, in addition, using damping shock absorption
The load-bearing part 1821 that unit 191 is surrounded is arranged to, for the lower case 112 inner support one in motonsed actuating units 100
Formula deceleration torque increase mechanism assembly 120, while damping device is also used for reducing the generation vibrated in each part of deceleration torque increase mechanism, with
Reduce the generation of noise.Each independent damping shock absorption unit is preferably using the elasticity with specific elastic damping coefficient
Body material is made according to the size and structure of setting, is cooperated with each corresponding position of housing assembly 110 to support one
Body formula deceleration torque increase mechanism assembly 120, while the transmission for completely cutting off mechanism kinematic noise.
In one embodiment, damping device 190 can be at round, L-type shape or T-type shape, can also be at wire nail shape, block
Shape or ring-type.Damping device 190 can be made of the elastomeric material with different spring damping coefficients.Preferably, damping
The elastomeric material of device 190 is fabricated by rubber (EPDM).
As shown in Figures 1 to 4, transmission device 130 is made of three-level deceleration torsion increasing device altogether, wherein first order deceleration torque increase
Device 150 is made of belt drive unit, and second level deceleration torsion increasing device 160 and third level deceleration torsion increasing device 170 are by planet
Gear reduction is constituted, and second level deceleration torque increase mechanism 160 is with third level deceleration torque increase mechanism 170 using concentric and concatenated
Drive mechanism.
Wherein, design has band tooth on the belt 153 of first order deceleration torsion increasing device 150, and belt 153 slows down in the first order and increases
It turns round and is tensioned between the master end belt pulley 151 of mechanism and the slave end belt pulley 152 of first order deceleration torque increase mechanism, to protect
Card torque is passed through the efficiency that the rational design with tooth and belt pulley guarantees torque transmitting by belt.It is substituted at one
Embodiment in, first order deceleration torque increase mechanism 150 can also be in gear assembly form.In the case, the first order
The driven side gear of deceleration torque increase mechanism 150 and the active side gear of first order deceleration torque increase mechanism can be by least one
Between gear be engaged with each other to transmit torque.
The driven side gear of first order deceleration torque increase mechanism 150 and the central gear of second level deceleration torque increase mechanism 160 are same
Heart arrangement and the connection with its rigidity.Preferably, the driven side gear of first order deceleration torque increase mechanism 150 can be with the second level
The central gear of deceleration torque increase mechanism 160 is integrally-formed.To simplify each number of parts of transmission device 150, improving each part
Mutual cooperation position precision, optimization mounting process, each components composition preferably uses integral molding technique, using integral type
Moulding process is also beneficial to extend the service life of motonsed actuating units
Wherein, the slave end belt pulley 152 of first order deceleration torque increase mechanism 150 and second level deceleration torque increase mechanism 160
Central gear 161 with one heart and anti-rotating connection, and using integral molding technique manufacture.
The pinion frame assembly 162 of second level deceleration torque increase mechanism 160 includes: to be used to support second level deceleration torque increase machine
The center driving axis 186 of structure 160 and third level deceleration torque increase mechanism 170, the planet tooth for second level deceleration torque increase mechanism 160
The supporting element 164 of wheel, the central gear 165 for third level deceleration torque increase mechanism.
The pinion frame 166 of second level deceleration torque increase mechanism 160 is disc-shaped.The center of the pinion frame 166 of plate-like
It is provided with through-hole and the connection with 186 rigidity of center driving axis and anti-rotating.Center driving axis 186 passes through pinion frame 166,
The integrally-formed central gear 165 for having third level deceleration torque increase mechanism 170 in the downside of pinion frame 166.Central gear 165
The concentric and rigid connection with pinion frame 166.
In another embodiment, the center of pinion frame 166 can also be provided with bearing hole, for center driving axis
186 pass through.Simultaneously the central gear 165 be centrally formed with for center driving axis 186 through and out through-hole.?
The other side of the pinion frame 166 of double reduction torque increase mechanism is evenly equipped with 3~5 along its center on the circumference of same size
Supporting Planetary Gears part 164.Supporting Planetary Gears part 164 equally with the pinion frame of the second level deceleration torque increase mechanism rigidity and
The connection of anti-rotating.In the above manner, planetary gear and central support shaft can be expert in the determining installation in position opposite to each other
On gear rack.
The pinion frame assembly 162 of third level deceleration torque increase mechanism 170 includes: for carrying center driving axis 186
Bearing hole 175, for the planetary gear supporting element 176 of third level deceleration torque increase mechanism, the torque for transmitting torque is exported
Device 171.The pinion frame 178 of third level deceleration torque increase mechanism 170 is same disc-shaped.The pinion frame 178 of plate-like
The integrally-formed torque output device 171 for having the connection of concentric and anti-rotating in side.In the pinion frame other side one of plate-like
Body formula is formed with the bearing hole 175 of carrying center driving axis 186, and bearing hole 175 is obstructed counterbore.
In another embodiment, bearing hole 175 or through-hole.Simultaneously in the pinion frame 178 of plate-like
The integrally-formed Supporting Planetary Gears part 176 for having 3~5 third level deceleration torque increase mechanisms 170 in the other side.Supporting Planetary Gears
Connection of the part 176 equally with 178 rigidity of pinion frame and anti-rotating of third level deceleration torque increase mechanism 170.Torque output dress
It sets 171, pinion frame 178 and Supporting Planetary Gears part 176 and bearing hole 175 is integral type formation process.By with top
Formula, second level planetary gear mechanism and third level planetary gear mechanism can the determining installations in position opposite to each other.
It is described according to above structure as it can be seen that simplifying driver by the support and fixation of above-mentioned integrated support device
The number of parts of structure improves each mechanism relative position precision, while also improving the operational efficiency of transmission device, and eliminating can
It can be because being mechanically connected the resistance to relaxation risk generated long afterwards when bearing top load.
Bearing hole in said mechanism on the pinion frame of third level deceleration torque increase mechanism 170 can sink for obstructed
Hole, the bearing hole on the pinion frame of third level deceleration torque increase mechanism 170 can be through-hole, and torque output device 171 can be with
For similar external splines shape or similar internal spline shape.
In the above manner, each component part of second level deceleration torque increase mechanism 160 and third level deceleration torque increase mechanism 170
Position accurate and stable can be fixed up, and not only simplify mounting process, and be conducive to extend the use longevity of the mechanism
Life is also conducive to the generation for promoting the operational efficiency of the mechanism, reducing operation noise simultaneously.
The invention also discloses a kind of electric parking brakes, it includes aforementioned present invention motonsed actuating units and is used for
The rotary motion generated by brake actuator is converted to the converter of linear motion.
In conclusion motonsed actuating units of the present invention and including its electric parking brake to transmission device building block
Support construction and operation noise in terms of improve optimization, not only simplify mounting process, and extend making for mechanism
With the service life, improves the operational efficiency of mechanism while reducing the generation of operation noise.Motonsed actuating units of the present invention pass through integrated
Support device support and fixation, simplify the number of parts of transmission mechanism, promote each mechanism relative position precision, while
The operational efficiency of transmission device is improved, eliminating may be because being mechanically connected the resistance to relaxation wind generated long afterwards when bearing top load
Danger.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (10)
1. a kind of motonsed actuating units are used for electric parking brake, the motonsed actuating units include housing assembly and receiving
Deceleration torque increase mechanism assembly in the housing assembly, the housing assembly includes upper housing and lower case, which is characterized in that
The deceleration torque increase mechanism assembly includes:
Transmission device is arranged in the lower case of the housing assembly, for torque increase of slowing down；
Torque drive is arranged in the lower case of the housing assembly, connect with the transmission device, for generating power
Square；
The transmission device includes first order deceleration torque increase mechanism, second level deceleration torque increase mechanism and third level deceleration torque increase machine
Structure, wherein the second level deceleration torque increase mechanism and the third level deceleration torque increase mechanism are made of epicyclic reduction gear unit.
2. motonsed actuating units as described in claim 1, which is characterized in that the first order deceleration torque increase mechanism is passed by belt
The form of dynamic device is constituted, and design has band tooth on the belt of the belt drive unit, and the belt tension slows down in the first order
Between the master end belt pulley of torque increase mechanism and the slave end belt pulley of first order deceleration torque increase mechanism.
3. motonsed actuating units as claimed in claim 2, which is characterized in that the motonsed actuating units further include support dress
It sets, the support device is arranged in the housing assembly, for fixing the transmission device；
The support device includes being mutually clamped fixed upper supporting piece and lower support element, and planet tooth is supported on the lower support element
The side of wheel deceleration device is integrated with the internal gear of second level deceleration torque increase mechanism and the internal gear of third level deceleration torque increase mechanism.
4. motonsed actuating units as claimed in claim 3, which is characterized in that the torque is supported to drive on the lower support element
The side of device is integrated with the boss of the fixed torque drive, the groove on the boss and the torque drive
Cooperation is rotated for restraining moment driving device.
5. motonsed actuating units as claimed in claim 3, which is characterized in that fix planetary gear speed-reduction on the upper supporting piece
The side of device is formed with the bearing hole of fixed center transmission shaft.
6. motonsed actuating units as claimed in claim 3, which is characterized in that the support device further includes planetary gear mechanism
Retainer, the retainer be arranged in the third level deceleration torque increase mechanism pinion frame and the third level slow down increase
Turn round the outside of the internal gear of mechanism.
7. motonsed actuating units as described in claim 1, which is characterized in that the deceleration torque increase mechanism assembly further includes damping
Device, the damping device are arranged between the support device and the enclosure interior cavity, are used to support lid deceleration torque increase
Mechanism assembly.
8. motonsed actuating units as claimed in claim 7, which is characterized in that the damping device is round, L-type shape, T-type
Shape, wire nail shape, bulk or ring-type.
9. motonsed actuating units as claimed in claim 8, which is characterized in that the damping device, which uses, has different springs
The elastomeric material of damped coefficient is made.
10. a kind of electric parking brake, which is characterized in that the electric parking brake includes as claim 1-9 is any
Motonsed actuating units described in one, and rotary motion for generating brake actuator are converted to turning for linear motion
Parallel operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763052.8A CN109424675A (en) | 2017-08-30 | 2017-08-30 | Motonsed actuating units and electric parking brake including it |
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| CN201710763052.8A CN109424675A (en) | 2017-08-30 | 2017-08-30 | Motonsed actuating units and electric parking brake including it |
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| CN109424675A true CN109424675A (en) | 2019-03-05 |
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| CN105485330A (en) * | 2015-11-19 | 2016-04-13 | 浙江诸暨万宝机械有限公司 | Electronic parking brake actuator |
| CN205769237U (en) * | 2016-05-20 | 2016-12-07 | 浙江万向精工有限公司 | A kind of electric parking brake assembly |
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| US20040178028A1 (en) * | 2002-02-01 | 2004-09-16 | William Farmer | Electro-mechanical actuator for an electrically actuated parking brake |
| US20090050420A1 (en) * | 2006-02-20 | 2009-02-26 | Gregor Poertzgen | Reduced-Noise Electric Brake Actuator |
| CN102762882A (en) * | 2009-12-23 | 2012-10-31 | 卢卡斯汽车股份有限公司 | Sub-assembly for an electromechanical brake actuator |
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Application publication date: 20190305 |
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