CN109849886A - The integrated form EPB driving device of parking braking - Google Patents
The integrated form EPB driving device of parking braking Download PDFInfo
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- CN109849886A CN109849886A CN201910154899.5A CN201910154899A CN109849886A CN 109849886 A CN109849886 A CN 109849886A CN 201910154899 A CN201910154899 A CN 201910154899A CN 109849886 A CN109849886 A CN 109849886A
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- brake
- synchronous
- integrated form
- parking braking
- driving device
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Abstract
Present invention discloses a kind of integrated form EPB driving devices of parking braking, including rotary shaft and the driving assembly to drive it to rotate；Synchronous worm screw there are two being set in rotary shaft, each synchronous worm screw can apply active force to corresponding brake piston by respective transmission component, it is arranged in parallel between brake piston, brake piston stress is mobile towards brake block, overcomes the active force of the spring card affixed with brake block and presses on the surface of brake disc；When releasing parking, transmission component is mobile backwards to brake block, and brake block retreats under the reaction force of spring card, and pushes brake piston is synchronous to retreat.The present invention is mainly reflected in: structurally reasonable, it is novel in design, the device is synchronized using two brake pistons and is pressed on brake block, the parking brake force doubled can be generated, to meet parking braking demand, meanwhile, the apparatus structure is compact, small in size, installation and debugging are convenient, control response is rapid, also relatively convenient to the maintenance of vehicle.
Description
Technical field
The present invention relates to automobile parking braking technical fields, specifically, more particularly to a kind of integrated form of parking braking
EPB driving device.
Background technique
As electronics electronic control technology deepens continuously what auto industry was applied, the electromechanical of auto parts and components product at present
It is combined into the mainstream for development.Electric parking brake (EPB) replaces the purely mechanic drag-line parking device of tradition, to client with
While carrying out comfort, the safety of parking braking is also improved.The major function of EPB be after making vehicle parking,
The product being remain stationary on ramp, and when uphill starting, emergency brake demand, additional braking force is provided.Mesh
The EPB of preceding mainstream can be divided into clamp integrated form EPB and drag-line EPB.
Clamp integrated form EPB is usually that train of reduction gears is driven by motor, and realizes the increasing torsional forces that slows down, then drive lead screw spiral shell
Rotary motion is changed into linear motion, pushes brake piston, compresses brake block, to step up brake disc, generation is stayed by mother's movement
Vehicle brake force, so that vehicle realizes parking function.But the clamp integrated form EPB of the structure is limited to gear set structural strength, energy
The maximum brake clamping force of offer is limited, such product is generally only applicable to all-up weight no more than 3.5 tons currently on the market
Vehicle.
Drag-line EPB slows down by being driven by a motor reduction gearing and increases torsional forces, be rotated further by and tighten drag-line, draw
The brake caliper mechanism of dynamic drag-line connection, drives the brake piston in clamp, compresses brake block, brake disc is clamped, to generate
Parking brake force.This kind of structure can be adapted for the vehicle that all-up weight is greater than 3.5 tons at present.But such drag-line EPB
Structure is complicated, and size is big, occupies the more installation space of vehicle, and braking force control precision is low.Simultaneously as needing to install longer
Drag-line, for client, installation and later maintenance bring a lot not convenient.
Summary of the invention
The purpose of the present invention is overcoming the shortcomings of the prior art, a kind of integrated form EPB driving of parking braking is provided
Device.
The purpose of the present invention is achieved through the following technical solutions:
A kind of integrated form EPB driving device of parking braking, including rotary shaft and the driving assembly to drive it to rotate；Institute
It states at least provided with the synchronization worm screw of two synchronous rotations in rotary shaft, each synchronous worm screw can pass through respective phase
The transmission component answered applies active force, arranged in parallel, the braking between the brake piston to corresponding brake piston
Piston stress is mobile towards brake block, overcome the active force of the spring card affixed with the brake block and by the brake block by
It is pressed on the surface of brake disc；When releasing parking, the transmission component is mobile backwards to the brake block, and the brake block is in spring
It is retreated under the reaction force of piece card, and pushes the brake piston is synchronous to retreat.
Preferably, the transmission component include the first helical gear, transmission nut and drive lead screw, first helical gear with
It is the helical gear worm-drive being meshed between the synchronous worm screw, is installed with the biography on the first helical gear gear shaft
Screw rod is moved, the transmission nut is arranged on the drive lead screw, the transmission nut extension is placed in can play limit resistance to it
In the square cavities of the brake piston of effect, the inner cavity of the transmission nut and the brake piston is clearance fit, and
The brake piston can be driven synchronous mobile towards the brake block.
Preferably, it is set in the rotary shaft there are two the synchronous worm screw, the synchronous worm screw can be by respectively corresponding
Transmission component to brake block apply active force spacing range be 100-150mm.
Preferably, the gap between the transmission nut and the brake piston is less than 1mm.
Preferably, the driving component includes driving motor, and a driven snail is installed on the motor shaft of the driving motor
Bar is installed with second helical gear being meshed with the helicoid on the driven screw in the rotary shaft, and described second tiltedly
Gear and the driven screw are helical gear worm-drive.
Preferably, the rotary shaft includes first, second and third portion, and the second position is in adjacent described same
It walks between worm screw, and affixed with it；Described first is not located at the other side of the corresponding synchronous worm screw with Part III, and with
Its is affixed.
Preferably, the first end of the first beveled gear teeth wheel shaft is affixed by fine tuning gasket and the drive lead screw.
It preferably, further include centre frame, the centre frame is equipped with the shock-absorbing sleeve being integrally molded with it, the damping
The inner ring of set and the second end of the first beveled gear teeth wheel shaft are affixed.
Preferably, the shock-absorbing sleeve is made of rubber material.
Preferably, the centre frame is made of engineering plastic materials.
The beneficial effects are mainly reflected as follows:
1, structurally reasonable, novel in design, which is synchronized using two brake pistons and is pressed on brake block, can be generated and be doubled
Parking brake force, thus meet all-up weight greater than 3.5 tons but be no more than 6 tons vehicle parking braking demand；
2, centre frame and shock-absorbing sleeve integrated injection molding form, and the first helical gear gear shaft is pluggable to interior, realization pair on shock-absorbing sleeve
First helical gear quick limit, it is simple and convenient, greatly improve working efficiency；
3, the setting of shock-absorbing sleeve can reduce the first helical gear bring vibration and noise in the running；
4, the setting for finely tuning gasket can eliminate two differences in height between brake piston and brake block, to guarantee two brakings
Piston is consistent to the pressing force of the brake block, extends the service life of the device；
5, the apparatus structure it is compact, it is small in size, do not need to occupy additional vehicle space to install drag-line driving structure, installation yet
Debugging is convenient, and control response is rapid, also relatively convenient to the maintenance of vehicle.
Detailed description of the invention
Technical scheme of the present invention is further explained with reference to the accompanying drawing:
Fig. 1: structural schematic diagram of the invention.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
It is not limited to the present invention, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
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, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, present invention discloses a kind of integrated form EPB driving device of parking braking, including rotary shaft 1 and
The driving assembly 5 for driving it to rotate, the driving component 5 include driving motor 51, are consolidated on the motor shaft of the driving motor 51
Equipped with a driven worm screw 52, be installed in the rotary shaft 1 one be meshed with the helicoid on the driven screw 52 second
Helical gear 53, second helical gear 53 are Worm Wheel System with the driven screw 52.Certainly, the driving component 5 is also
It can be other driving devices, the present invention is not especially limited.
Synchronization worm screw 2 there are two synchronous rotation is set in the rotary shaft 1, it is of course also possible to be set as other
The synchronization worm screw 2 of quantity, belongs to protection category of the invention, the present invention is not specifically limited.The both ends of the rotary shaft 1 are equal
It is arranged with bearing 11, the inner ring of the bearing 11 and the rotary shaft 1 are affixed, and outer ring is affixed with shell.Wherein, the rotation
Axis 1 include first 12, second 13 and third portion 14, described second 13 between the adjacent synchronous worm screw 2, and
It is affixed with it.Described first 12 is located at the other side of the corresponding synchronous worm screw 2 with third portion 14, and affixed with it.
Certainly, the rotary shaft 1 or multistage are spliced, belong to protection category of the invention.
In the present invention, each synchronous worm screw 2 can be by respective transmission component 3 to correspondingly brake piston
4 apply active force, wherein the gap between the transmission nut 32 and the brake piston 4 is less than 1mm.It is applied to brake piston 4
The spacing range for adding active force is 100-150mm, as spacing is too big or too small is all unfavorable for braking.The brake piston 4 by
It is mobile towards brake block 100 in the state of power.Wherein, the brake block 100 is located at brake by spring card (not shown)
In vehicle caliper bracket (not shown), the brake piston 4 is also mounted on brake callipers bracket, and the transmission component 3 drives
It is mobile towards the brake block 100 to move the brake piston 4, overcomes the effect of the spring card affixed with the brake block 100
Parking is realized on power and the surface that the brake block 100 is pressed on to brake disc 101.It is described when vehicle launch need to release parking
Transmission component 3 retreats, mobile backwards to the brake block 100, and the brake block 100 retreats under the reaction force of spring card,
And push the brake piston 4 is synchronous to retreat, it realizes and releases parking function, normal vehicle operation.
Among the above, the transmission component 3 includes the first helical gear 31, transmission nut 32, drive lead screw 33, and described first tiltedly
It is the helical gear worm-drive being meshed between gear 31 and the synchronous worm screw 2, on the gear shaft of first helical gear 31
It is installed with the drive lead screw 33, the transmission nut 32 is arranged on the drive lead screw 33, the transmission nut 32 extends
It is placed in the square cavities that can play the brake piston 4 of limit drag effect to it, to prevent 32 turns of the transmission nut
It is dynamic.Specifically, the inner cavity of the transmission nut 32 and the brake piston 4 is clearance fit, and the brake piston 4 can be driven
It is synchronous mobile towards the brake block 100.In the present invention, preferred embodiment is the transmission component 3 using helical gear
Worm-drive, certainly, the transmission component 3 can also use Worm Wheel System, and Worm Wheel System is the prior art, this hair
It is bright just it not to be elaborated.
In the present invention, the first end of the gear shaft of first helical gear 31 is connected by fine tuning gasket 34 and drive lead screw 33
Connect, second end is affixed by shock-absorbing sleeve 36 and centre frame 35, the shock-absorbing sleeve 36 be integrated with the centre frame 35 be molded and
At the setting of shock-absorbing sleeve can reduce the first helical gear bring vibration and noise in the running.The centre frame 35 to set
It sets to be plugged in the shock-absorbing sleeve convenient for the second end of 31 gear shaft of the first helical gear and quickly be limited, it is easy to operate
It is convenient, greatly improve working efficiency.When the synchronous worm screw 2 rotation, two first helical gears 31 are rotated synchronously, according to
It is secondary that the brake block is driven by respective fine tuning gasket 34, drive lead screw 33, transmission nut 32 and brake piston 4
100 is mobile towards the brake disc 101, but since transmission nut 32 and brake piston 4 can all have one in process
Fixed error has a brake piston 4 from microcosmic angle and first presses on brake block 100, certainly at this point, accordingly
The fine tuning gasket 34 can play distance element rebound effect, so that difference in height is eliminated, the synchronous driving institute of two brake pistons 4
The surface that brake block 100 presses on brake disc 101 is stated, the service life of the device can be greatly extended.It is described in the present embodiment
Shock-absorbing sleeve 36 is made of rubber material, and the centre frame 35 is made of engineering plastic materials.
The course of work of the invention is simply illustrated below:
When needing parking, the driving motor 51 starts, and passes sequentially through driven worm screw 52, the second helical gear 53 drives the rotation
Shaft 1 rotates, and the rotary shaft 1 rotation drives the synchronization worm screw 2 of synchronous rotation to rotate, the synchronous rotation of worm screw 2 according to
Secondary the first helical gear 31, fine tuning gasket 34, drive lead screw 33 and the transmission nut 32 of passing through drives the brake piston 4 towards institute
The movement of brake block 100 is stated, until the brake piston 4 presses on the surface of brake disc 101, realizes parking.
When that need to release parking, the driving motor 51 starts and inverts, and passes sequentially through driven worm screw 52, the second helical gear
The 53 driving rotary shafts 1 rotate, and the rotation of rotary shaft 1 drives the synchronization worm screw 2 of synchronous rotation to rotate, the synchronization
The rotation of worm screw 2 passes sequentially through the first helical gear 31, fine tuning gasket 34, drive lead screw 33 and drives transmission nut 32 backwards to the brake
Disk 101 is mobile.At this point, the brake block 100 retreats under the reaction force of spring card, and push the brake piston 4 same
Step retreats, and realizes and releases parking function.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. the integrated form EPB driving device of parking braking, it is characterised in that: including rotary shaft (1) and to drive its rotation
Driving assembly (5)；It is each described at least provided with the synchronization worm screw (2) of two synchronous rotations on the rotary shaft (1)
Synchronous worm screw (2) can apply active force, the system to corresponding brake piston (4) by respective transmission component (3)
Arranged in parallel between piston (4), brake piston (4) stress is mobile towards brake block (100), overcomes and the brake
The active force of the affixed spring card of vehicle piece (100) and the surface that the brake block (100) is pressed on to brake disc (101)；When
When releasing parking, the transmission component (3) is mobile backwards to the brake block (100), and the brake block (100) is in spring card
It is retreated under reaction force, and pushes the brake piston (4) are synchronous to retreat.
2. the integrated form EPB driving device of parking braking according to claim 1, it is characterised in that: the transmission component
(3) include the first helical gear (31), transmission nut (32) and drive lead screw (33), first helical gear (31) with it is described synchronous
It is the helical gear worm-drive being meshed between worm screw (2), is installed with the biography on the gear shaft of first helical gear (31)
It moves screw rod (33), is arranged with the transmission nut (32) on the drive lead screw (33), the transmission nut (32), which extends, to be placed in
In the square cavities that the brake piston (4) of limit drag effect can be played to it, the transmission nut (32) and the braking
The inner cavity of piston (4) is clearance fit, and the brake piston (4) can be driven synchronous and moved towards the brake block (100)
It is dynamic.
3. the integrated form EPB driving device of parking braking according to claim 2, it is characterised in that: the rotary shaft (1)
On set there are two the synchronous worm screw (2), the synchronous worm screw (2) can be by respective transmission component (3) to brake
The spacing range that piece (100) applies active force is 100-150mm.
4. the integrated form EPB driving device of parking braking according to claim 2, it is characterised in that: the transmission nut
(32) gap between the brake piston (4) is less than 1mm.
5. the integrated form EPB driving device of parking braking according to claim 3, it is characterised in that: the driving component
(5) include driving motor (51), a driven worm screw (52), the rotary shaft are installed on the motor shaft of the driving motor (51)
(1) second helical gear (53) being meshed with the helicoid on the driven screw (52), second helical teeth are installed on
Taking turns (53) and the driven screw (52) is helical gear worm-drive.
6. the integrated form EPB driving device of parking braking according to claim 5, it is characterised in that: the rotary shaft (1)
Including first (12), second (13) and third portion (14), described second (13) are located at the adjacent synchronous worm screw (2)
Between, and it is affixed with it；First (12) are located at the another of the corresponding synchronous worm screw (2) with third portion (14)
Side, and it is affixed with it.
7. the integrated form EPB driving device of parking braking according to claim 6, it is characterised in that: first helical teeth
The first end for taking turns (31) gear shaft is affixed by fine tuning gasket (34) and the drive lead screw (33).
8. according to the integrated form EPB driving device of any parking braking of claim 2 to 7, it is characterised in that: further include
Centre frame (35), the centre frame (35) are equipped with the shock-absorbing sleeve (36) being integrally molded with it, the shock-absorbing sleeve (36)
The second end of inner ring and the first helical gear (31) gear shaft is affixed.
9. the integrated form EPB driving device of parking braking according to claim 8, it is characterised in that: the shock-absorbing sleeve
(36) made of rubber material.
10. the integrated form EPB driving device of parking braking according to claim 9, it is characterised in that: the centre frame
(35) made of engineering plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910154899.5A CN109849886A (en) | 2019-03-01 | 2019-03-01 | The integrated form EPB driving device of parking braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910154899.5A CN109849886A (en) | 2019-03-01 | 2019-03-01 | The integrated form EPB driving device of parking braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109849886A true CN109849886A (en) | 2019-06-07 |
Family
ID=66899408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910154899.5A Pending CN109849886A (en) | 2019-03-01 | 2019-03-01 | The integrated form EPB driving device of parking braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109849886A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281897A (en) * | 2019-06-13 | 2019-09-27 | 泰牛汽车技术(苏州)有限公司 | Motorcar electric booster brake, its application method and brake system of car |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5161650A (en) * | 1991-05-22 | 1992-11-10 | Allied-Signal Inc. | Disc brake with powered integral parking mechanism |
| WO2007138026A1 (en) * | 2006-05-30 | 2007-12-06 | Aktiebolaget Skf | A linear electromechanical actuator, particularly for a parking brake |
| EP1893882A1 (en) * | 2005-06-16 | 2008-03-05 | KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH | Disk brake comprising electric motor-driven adjusting devices and method for braking using the parking brake |
| US20140034432A1 (en) * | 2012-08-03 | 2014-02-06 | Advics North America | Electric brake actuator for vehicles |
| CN104196922A (en) * | 2014-08-20 | 2014-12-10 | 吉林大学 | Worm gear, worm, ball and wedge-disc type electronic parking brake |
| CN105799685A (en) * | 2016-04-22 | 2016-07-27 | 宁波格陆博科技有限公司 | Electronic parking braking system with double-piston callipers |
| CN106394536A (en) * | 2015-07-30 | 2017-02-15 | 福特全球技术公司 | Electric parking brake control method and control device |
| US20170328432A1 (en) * | 2016-05-16 | 2017-11-16 | Akebono Brake Industry Co., Ltd. | Devices for operating a parking brake |
| CN109278529A (en) * | 2018-09-29 | 2019-01-29 | 泰牛汽车技术(苏州)有限公司 | Hybrid gearbox drive system |
| CN209776415U (en) * | 2019-03-01 | 2019-12-13 | 泰牛汽车技术(苏州)有限公司 | Integrated EPB driving device for parking brake |
-
2019
- 2019-03-01 CN CN201910154899.5A patent/CN109849886A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5161650A (en) * | 1991-05-22 | 1992-11-10 | Allied-Signal Inc. | Disc brake with powered integral parking mechanism |
| EP1893882A1 (en) * | 2005-06-16 | 2008-03-05 | KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH | Disk brake comprising electric motor-driven adjusting devices and method for braking using the parking brake |
| WO2007138026A1 (en) * | 2006-05-30 | 2007-12-06 | Aktiebolaget Skf | A linear electromechanical actuator, particularly for a parking brake |
| US20140034432A1 (en) * | 2012-08-03 | 2014-02-06 | Advics North America | Electric brake actuator for vehicles |
| CN104196922A (en) * | 2014-08-20 | 2014-12-10 | 吉林大学 | Worm gear, worm, ball and wedge-disc type electronic parking brake |
| CN106394536A (en) * | 2015-07-30 | 2017-02-15 | 福特全球技术公司 | Electric parking brake control method and control device |
| CN105799685A (en) * | 2016-04-22 | 2016-07-27 | 宁波格陆博科技有限公司 | Electronic parking braking system with double-piston callipers |
| US20170328432A1 (en) * | 2016-05-16 | 2017-11-16 | Akebono Brake Industry Co., Ltd. | Devices for operating a parking brake |
| CN109278529A (en) * | 2018-09-29 | 2019-01-29 | 泰牛汽车技术(苏州)有限公司 | Hybrid gearbox drive system |
| CN209776415U (en) * | 2019-03-01 | 2019-12-13 | 泰牛汽车技术(苏州)有限公司 | Integrated EPB driving device for parking brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281897A (en) * | 2019-06-13 | 2019-09-27 | 泰牛汽车技术(苏州)有限公司 | Motorcar electric booster brake, its application method and brake system of car |
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Effective date of registration: 20210608 Address after: No.368 Longjin Road, Changzhou City, Jiangsu Province 213000 Applicant after: KUNTYE VEHICLE SYSTEM (CHANGZHOU) Co.,Ltd. Address before: 215123 building G1, Suzhou 2.5 Industrial Park, 88 Dongchang Road, Suzhou Industrial Park, Jiangsu Province Applicant before: TAI NIU AUTOMOTIVE TECHNOLOGY (SUZHOU) Co.,Ltd. |