CN104074895A - Parking braking transmission device - Google Patents
Parking braking transmission device Download PDFInfo
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- CN104074895A CN104074895A CN201410253923.8A CN201410253923A CN104074895A CN 104074895 A CN104074895 A CN 104074895A CN 201410253923 A CN201410253923 A CN 201410253923A CN 104074895 A CN104074895 A CN 104074895A
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- parking braking
- ring
- belt wheel
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- Braking Systems And Boosters (AREA)
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Abstract
The invention relates to the field of automobile braking devices, and aims at providing a parking braking transmission device. The parking braking transmission device comprises a shell provided with an installation through hole and an installation cavity, a planetary reducer located in the installation through hole and provided with a driven synchronous belt wheel and a floating centring shaft, a motor located in the installation cavity and provided with a location convex ring at a front end cover, a lower connection block provided with a location hole which is formed outside the location convex ring in a sleeving manner, and a clamping hole and a buffering hole which are located in the two opposite sides of the location hole respectively, an upper connection block provided with a clamping block which is inserted in the clamping hole, an insertion sheet with a side surrounding which coats a buffering gasket and is inserted in the buffering hole, and a radial limit hole which is in clearance fit with the front end of the floating centring shaft, a shell cover connected with the shell body, an elastic vibration damping block connected with the front end of the lower connection block and the shell cover respectively, a drive synchronous belt wheel which is in transmission connection with the motor output shaft, and a synchronous belt. The parking braking transmission device is low in vibration and noise during working, and easy to assemble.
Description
Technical field
The present invention relates to brake device for car field, especially a kind of parking braking transmission device.
Background technique
Automobile hand brake parking braking, apply the strength to parking brake cable by pulling of parking vehicle brake lever, retrain the movement of vehicle by operation parking braking transmission device, operation effort need to rely on driver to pass through throttle, the smooth and easy starting of clutch interoperation ability that manual release is hand braking and skilled in the time of hill start; Electronic brake system refers to that the long time property braking function by the provisional braking in driving process and after stopping combines, and is realized the technology of stopping brake by electronic control mode; Control mode has become electronic button from mechanical type parking brake pull bar before; When parking braking, touch on the brake without a pin or use parking brake, car remains static all the time, and when needs are removed state of rest, also only need dub throttle gets final product brake off, and driver's rapid operation is convenient; Chinese Patent Application No.: 200710156334.8 disclosure of the invention a kind of vehicle electronic brake system actuator, comprise transmitting set and brake caliper assembly.The output of the direct current generator in transmitting set is after synchronous belt drive mechanism and Involute planetary gear drive with small teeth difference mechanism slow down and increase and turn round, transfer straight line motion by slip screw driving mechanism to rotatablely moving, the form that adopts swivel nut to promote piston and brake pad assembly is braked brake disc.Vehicle electronic brake system actuator is parking braking transmission device, the transmission device of this parking braking transmission device is the planet-gear transmission mechanism that is connected and has eccentric shaft with housing, while there is work, vibration and noise are greatly and assemble difficult deficiency, therefore, vibration and noise is less and the easy parking braking transmission device of assembling when a kind of work of design, becomes problem demanding prompt solution.
Summary of the invention
When the object of the invention is transmission device in order to overcome current parking braking and having work, vibration and noise are large and assemble difficult deficiency,, vibration and noise is less and assemble easy parking braking transmission device when a kind of work is provided.
Concrete technological scheme of the present invention is:
A kind of parking braking transmission device, comprise and be provided with the housing that through hole and installation cavity are installed, be arranged in and through hole be installed and be provided with driven synchronous pulley and the planetary reducer of float centrih axle, be arranged in the motor that installation cavity and front cover are provided with location flange collar, be provided with the positioning hole being set in outside the flange collar of location, lay respectively at the hole clipping of the relative both sides of positioning hole and the lower connecting block of cushion hole, be provided with the fixture block that inserts hole clipping, the coated cushion pad of gusset and insert inserted sheet in cushion hole and with the upper contiguous block of the radially spacing hole of the front end Spielpassung of float centrih axle, the cap that ear end face is provided with accommodating depression and is connected with housing, the elastic damping piece being connected with lower connecting block front end and cap respectively, the active synchronization belt wheel being in transmission connection with the output shaft of motor, the Timing Belt being connected with active synchronization belt wheel and driven synchronous belt pulley transmission respectively, the gusset that through hole is installed is provided with several anti-rotation grooves, and the gusset of planetary reducer is provided with several anti-rotation projections mating with anti-rotation groove.This parking braking transmission device, because planetary reducer is arranged in, through hole is installed, three anti-rotation projections insert respectively in three anti-rotation grooves locates, lower connecting block positioning hole is outside the flange collar of location, the fixture block of upper contiguous block inserts hole clipping, the inserted sheet of the coated cushion pad of gusset inserts in cushion hole, radially spacing hole is enclosed within outside the float centrih axle of Spielpassung, make radially all slightly can floating with axis of planetary reducer and motor, while making planetary reducer with machine operation by automatic adjusting, keep coaxial, be beneficial to and reduce vibration and noise.Vibration and noise is less and assembling easy when the work of this parking braking transmission device.
As preferably, described planetary reducer comprises speed reducer base, be provided with the retarder lid that the first ring gear is connected with the second ring gear and with speed reducer base, rear end is provided with the second planet carrier of spline output shaft, four the second planet wheels that engage with the second planet carrier front end pivot joint and with the second ring gear respectively, rear end is provided with the first planet carrier of the second sun gear engaging with four the second planet wheels, three the first row star-wheels that engage with the first planet carrier front end pivot joint and with the first ring gear respectively, the core hole that is provided with front end ring and coordinate with float centrih shaft clearance the first sun gear engaging with three the first row star-wheels, driven synchronous pulley is provided with the mesopore that aperture is greater than retarder lid external diameter, driven synchronous pulley is connected with the rear end of front end ring, three anti-rotation projections are positioned at the outer gusset of speed reducer base, the rear end of float centrih axle is connected with the first planet carrier through core hole, the bottom surface of accommodating depression is provided with the limit opening ring relative with front end ring.Planetary reducer is double reduction planetary reducer, and reduction of speed increases to be turned round effective and can reduce volume and the power of motor; The first row star-wheel has three, and the second planet wheel has four, when work vibration frequency stagger be beneficial to reduce vibration and noise; The rear end of float centrih axle is connected with the first planet carrier through core hole, make the second sun gear radially slightly can float to minimizing vibrate and noise useful; The limit opening ring that accommodating depression bottom surface is provided with has limited the axial domain of walker of planetary reducer.
As preferably, the bottom surface of described accommodating depression is provided with taper type counterbore; Elastic damping piece is provided with the taper type elastic ring that is arranged in taper type counterbore; Upper contiguous block is provided with the taper type fixed block that is arranged in taper type elastic ring; Radially the distance between spacing hole axis and electrical axis is less than the distance between float centrih axle axis and electrical axis.Taper type elastic ring makes cushioning effect better; Radially the distance between spacing hole axis and electrical axis is less than that distance between float centrih axle axis and electrical axis makes to reduce vibration and noise result is better.
As preferably, the front end of the first described sun gear is provided with pit.Can reduce pivoting friction resistance.
As preferably, the rear end cover of described motor is provided with shakeproof washer; The bottom of installation cavity is provided with the gasket hole mating with shakeproof washer.Shakeproof washer inserts gasket hole and is beneficial to minimizing motor oscillating and noise.
As preferably, the front end of described active synchronization belt wheel is provided with block; Active synchronization belt wheel be that gradient 1 is spent to the helical teeth of 3 degree with tooth.Timing Belt and active synchronization belt wheel are adhered to contact better can reduce vibration and noise.
Compared with prior art, the invention has the beneficial effects as follows: vibration and noise is less and assembling easy when the work of this parking braking transmission device.Planetary reducer is double reduction planetary reducer, and reduction of speed increases to be turned round effective and can reduce volume and the power of motor; The first row star-wheel has three, and the second planet wheel has four, when work vibration frequency stagger be beneficial to reduce vibration and noise; The rear end of float centrih axle is connected with the first planet carrier through core hole, make the second sun gear radially slightly can float to minimizing vibrate and noise useful; The limit opening ring that accommodating depression bottom surface is provided with has limited the axial amount of floating scope of planetary reducer.Taper type elastic ring and elastic spacing piece make cushioning effect better; Radially the distance between spacing hole axis and electrical axis is less than that distance between float centrih axle axis and electrical axis makes to reduce vibration and noise result is better.The front end of the first sun gear is provided with pit, can reduce pivoting friction resistance.Shakeproof washer inserts gasket hole and is beneficial to minimizing motor oscillating and noise.Active synchronization belt wheel be that gradient 1 is spent to the helical teeth of 3 degree with tooth, Timing Belt and active synchronization belt wheel are adhered to contact better, can reduce vibration and noise.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention.
In figure: Timing Belt-2, housing-3, through hole-31 are installed, installation cavity-32, anti-rotation groove-33, gasket hole-34, motor-4, flange collar-41, location, shakeproof washer-42, lower connecting block-5, hole clipping-51, positioning hole-52, cushion hole-53, taper type fixed block-54, planetary reducer-6, driven synchronous pulley-61, float centrih axle-62, anti-rotation projection-63, speed reducer base-64, the first ring gear-65, the second ring gear-66, retarder lid-67, spline output shaft-68, the second planet carrier-69, the second planet wheel-610, the second sun gear-611, the first planet carrier-612, the first row star-wheel-613, front end ring-614, core hole-615, mesopore-616, pit-617, upper contiguous block-7, fixture block-71, cushion pad-72, inserted sheet-73, radially spacing hole-74, taper type fixed block-75, active synchronization belt wheel-20, block-201, cap-21, accommodating depression-211, limit opening ring-212, taper type counterbore-213, elastic damping piece-22, taper type elastic ring-221.
Embodiment
Below in conjunction with shown in accompanying drawing, the present invention is described further.
As shown in Figure 1: a kind of parking braking transmission device, the brake caliper that comprises driving mechanism and be in transmission connection with driving mechanism, described driving mechanism comprises the housing 3 that is provided with installation through hole 31 and installation cavity 32, be arranged in the planetary reducer 6 of through hole 31 being installed and being provided with driven synchronous pulley 61 and float centrih axle 62, be arranged in the motor 4 that installation cavity 32 and front cover are provided with location flange collar 41, be provided with the positioning hole 52 being set in outside the flange collar 41 of location, lay respectively at positioning hole 52 hole clippings 51 of relative both sides and the lower connecting block 5 of cushion hole 53, be provided with the fixture block 71 that inserts hole clipping 51, the coated cushion pad 72 of gusset and insert inserted sheet 73 in cushion hole 53 and with the upper contiguous block 7 of the radially spacing hole 74 of the front end Spielpassung of float centrih axle 62, ear end face is provided with accommodating depression 211 and passes through the cap 21 of seam clamping with housing 3, the elastic damping piece 22 being connected with lower connecting block 5 front ends and cap 21 respectively, the active synchronization belt wheel 20 being in transmission connection with the output shaft of motor 4, the Timing Belt 2 being in transmission connection with active synchronization belt wheel 20 and driven synchronous pulley 61 respectively, the gusset of through hole 31 is installed and is provided with three anti-rotation grooves 33, the gusset of planetary reducer 6 is provided with the anti-rotation projection 63 of several and anti-rotation groove 33 Spielpassung.The pitch of Timing Belt 2 is 3mm.
Described planetary reducer 66 comprises speed reducer base 64, be provided with the first ring gear 65 and the second ring gear 66 the retarder lid 67 with speed reducer base 64 clampings, rear end is provided with the second planet carrier 69 of spline output shaft 68, four the second planet wheels 610 that engage by bearing pin pivot joint and with the second ring gear 66 with the second planet carrier 69 front ends respectively, rear end is provided with the first planet carrier 612 of the second sun gear 611 engaging with four the second planet wheels 610, three the first row star-wheels 613 that engage by bearing pin pivot joint and with the first ring gear 65 with the first planet carrier 612 front ends respectively, the first sun gear that is provided with front end ring 614 and engages with the core hole 615 of float centrih axle 62 Spielpassung and with three the first row star-wheels 613, driven synchronous pulley 61 is provided with the mesopore 616 that aperture is greater than retarder lid 67 external diameters, driven synchronous pulley 61 forms and is connected with the rear end one of front end ring 614, three anti-rotation projections 63 are positioned at the outer gusset of speed reducer base 64, the rear end of float centrih axle 62 is connected with the first planet carrier 612 through core hole 615, the bottom surface of accommodating depression 211 is provided with the limit opening ring 212 relative with front end ring.The reduction speed ratio of planetary reducer 6 is 120.
The bottom surface of described accommodating depression 211 is provided with taper type counterbore 213; Elastic damping piece 22 is provided with the taper type elastic ring 221 that is arranged in taper type counterbore 213; Upper contiguous block 7 is provided with the taper type fixed block 75 that is arranged in taper type elastic ring 221; Radially the distance between spacing hole 74 axis and motor 4 axis is less than the distance between float centrih axle 62 axis and motor 4 axis.
The front end of the first described sun gear 613 is provided with pit 617.
The rear end cover of described motor 4 is provided with shakeproof washer 42; The bottom of installation cavity 32 is provided with the gasket hole 34 with shakeproof washer 42 transition fit.
The front end of described active synchronization belt wheel 20 is provided with block 201; Active synchronization belt wheel 20 be the helical teeth that gradient 2 is spent with tooth.
Described motor 4 is direct current generator; The material of shakeproof washer 42, cushion pad 72, taper type fixed block 75, elastic damping piece 22 and taper type elastic ring 221 is rubber.
When this parking braking transmission device uses, spline output shaft 68 is in transmission connection with the splined hole of parking braking clamp, because planetary reducer 6 is arranged in, through hole 31 is installed, three anti-rotation projections 63 insert respectively location in three anti-rotation grooves 33, lower connecting block 5 positioning holes 52 are outside the flange collar 41 of location, the fixture block 71 of upper contiguous block 7 inserts hole clipping 51, the inserted sheet 73 of the coated cushion pad 72 of gusset inserts in cushion hole 53, radially spacing hole 74 is enclosed within outside the float centrih axle 62 of Spielpassung, the bottom surface of accommodating depression 211 is provided with limit opening ring 212, make radially all slightly can floating with axis of planetary reducer 6 and motor 4, planetary reducer 6 is worked by automatic adjusting during with motor 4, keep coaxial, be beneficial to and reduce vibration and noise.
The invention has the beneficial effects as follows: vibration and noise is less and assembling easy when the work of this parking braking transmission device.Planetary reducer is double reduction planetary reducer, and reduction of speed increases to be turned round effective and can reduce volume and the power of motor; The first row star-wheel has three, and the second planet wheel has four, when work vibration frequency stagger be beneficial to reduce vibration and noise; The rear end of float centrih axle is connected with the first planet carrier through core hole, make the second sun gear radially slightly can float to minimizing vibrate and noise useful; The limit opening ring that accommodating depression bottom surface is provided with has limited the axial amount of floating scope of planetary reducer.Taper type elastic ring makes cushioning effect better; Radially the distance between spacing hole axis and electrical axis is less than that distance between float centrih axle axis and electrical axis makes to reduce vibration and noise result is better.The front end of the first sun gear is provided with pit, can reduce pivoting friction resistance.Shakeproof washer inserts gasket hole and is beneficial to minimizing motor oscillating and noise.Active synchronization belt wheel be the helical teeth that gradient 2 is spent with tooth, Timing Belt and active synchronization belt wheel are adhered to contact better, can reduce vibration and noise.The parking braking system with parking braking transmission device can reduce vibration and noise.
It is apparent to one skilled in the art that the present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.All so apparent amendments of the technician to described field, within being included in the scope of this claim.
Claims (6)
1. a parking braking transmission device, it is characterized in that: comprise and be provided with the housing that through hole and installation cavity are installed, be arranged in and through hole be installed and be provided with driven synchronous pulley and the planetary reducer of float centrih axle, be arranged in the motor that installation cavity and front cover are provided with location flange collar, be provided with the positioning hole being set in outside the flange collar of location, lay respectively at the hole clipping of the relative both sides of positioning hole and the lower connecting block of cushion hole, be provided with the fixture block that inserts hole clipping, the coated cushion pad of gusset and insert inserted sheet in cushion hole and with the upper contiguous block of the radially spacing hole of the front end Spielpassung of float centrih axle, the cap that ear end face is provided with accommodating depression and is connected with housing, the elastic damping piece being connected with lower connecting block front end and cap respectively, the active synchronization belt wheel being in transmission connection with the output shaft of motor, the Timing Belt being connected with active synchronization belt wheel and driven synchronous belt pulley transmission respectively, the gusset that through hole is installed is provided with several anti-rotation grooves, and the gusset of planetary reducer is provided with several anti-rotation projections mating with anti-rotation groove.
2. parking braking transmission device according to claim 1, it is characterized in that: described planetary reducer comprises speed reducer base, be provided with the retarder lid that the first ring gear is connected with the second ring gear and with speed reducer base, rear end is provided with the second planet carrier of spline output shaft, four the second planet wheels that engage with the second planet carrier front end pivot joint and with the second ring gear respectively, rear end is provided with the first planet carrier of the second sun gear engaging with four the second planet wheels, three the first row star-wheels that engage with the first planet carrier front end pivot joint and with the first ring gear respectively, the core hole that is provided with front end ring and coordinate with float centrih shaft clearance the first sun gear engaging with three the first row star-wheels, driven synchronous pulley is provided with the mesopore that aperture is greater than retarder lid external diameter, driven synchronous pulley is connected with the rear end of front end ring, three anti-rotation projections are positioned at the outer gusset of speed reducer base, the rear end of float centrih axle is connected with the first planet carrier through core hole, the bottom surface of accommodating depression is provided with the limit opening ring relative with front end ring.
3. parking braking transmission device according to claim 2, is characterized in that: the bottom surface of described accommodating depression is provided with taper type counterbore; Elastic damping piece is provided with the taper type elastic ring that is arranged in taper type counterbore; Upper contiguous block is provided with the taper type fixed block that is arranged in taper type elastic ring; Radially the distance between spacing hole axis and electrical axis is less than the distance between float centrih axle axis and electrical axis.
4. parking braking transmission device according to claim 2, is characterized in that: the front end of the first described sun gear is provided with pit.
5. according to the parking braking transmission device described in any one in claim 1 to 4, it is characterized in that: the rear end cover of described motor is provided with shakeproof washer; The bottom of installation cavity is provided with the gasket hole mating with shakeproof washer.
6. according to the parking braking transmission device described in any one in claim 1 to 4, it is characterized in that: the front end of described active synchronization belt wheel is provided with block; Active synchronization belt wheel be that gradient 1 is spent to the helical teeth of 3 degree with tooth.
Priority Applications (1)
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CN201410253923.8A CN104074895B (en) | 2014-06-10 | 2014-06-10 | Parking braking actuating device |
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CN201410253923.8A CN104074895B (en) | 2014-06-10 | 2014-06-10 | Parking braking actuating device |
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CN104074895B CN104074895B (en) | 2017-01-04 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
CN106382311A (en) * | 2016-11-04 | 2017-02-08 | 浙江力邦合信智能制动系统股份有限公司 | Electronic parking actuator |
CN106476782A (en) * | 2016-11-26 | 2017-03-08 | 浙江力邦合信智能制动系统股份有限公司 | A kind of motor vehicle braking system electronic parking actuator |
CN107830089A (en) * | 2017-11-28 | 2018-03-23 | 芜湖伯特利汽车安全系统股份有限公司 | A kind of electronic parking actuator of motor vehicle braking system |
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CN201941760U (en) * | 2010-11-19 | 2011-08-24 | 芜湖伯特利汽车安全系统有限公司 | Electronic parking actuator of parking braking system |
CN201944157U (en) * | 2010-11-19 | 2011-08-24 | 芜湖伯特利汽车安全系统有限公司 | An electronic standing performer used in the automobile brake system |
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CN103119319A (en) * | 2010-07-23 | 2013-05-22 | 卢卡斯汽车股份有限公司 | Sub-assembly for an electromechanical brake actuator |
CN103352941A (en) * | 2013-04-18 | 2013-10-16 | 芜湖伯特利汽车安全系统有限公司 | Electronic parking actuator for motor vehicle braking system |
CN203948527U (en) * | 2014-06-10 | 2014-11-19 | 浙江力邦合信汽车制动系统有限公司 | Parking braking transmission device |
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Patent Citations (7)
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DE102004048700A1 (en) * | 2004-10-06 | 2006-05-18 | Siemens Ag | Handbrake actuator for motor vehicle, has dual gear wheel whose smaller gear wheel stays in engagement with planetary wheels of planetary gear train, where motor and carrier unit stay in connection with housing by elastic unit |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
CN105485330B (en) * | 2015-11-19 | 2019-07-05 | 浙江诸暨万宝机械有限公司 | A kind of electronic brake actuator |
CN106382311A (en) * | 2016-11-04 | 2017-02-08 | 浙江力邦合信智能制动系统股份有限公司 | Electronic parking actuator |
CN106476782A (en) * | 2016-11-26 | 2017-03-08 | 浙江力邦合信智能制动系统股份有限公司 | A kind of motor vehicle braking system electronic parking actuator |
CN107830089A (en) * | 2017-11-28 | 2018-03-23 | 芜湖伯特利汽车安全系统股份有限公司 | A kind of electronic parking actuator of motor vehicle braking system |
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Address after: Prosperous road light furniture Wanquan Park of Pingyang County in Zhejiang province Wenzhou City, No. 111, 325400 Applicant after: ZHEJIANG LIBANG HEXIN INTELLIGENT BRAKE SYSTEM CO., LTD. Address before: 325400 Wenzhou Province, Pingyang Province Light Industrial Park Road, No. 111, No. Applicant before: Zhejiang Libang Hexin Automobile Brake System Co., Ltd. |
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