CN105736610B - Electronic control actuating mechanism for parking brake - Google Patents
Electronic control actuating mechanism for parking brake Download PDFInfo
- Publication number
- CN105736610B CN105736610B CN201610260931.4A CN201610260931A CN105736610B CN 105736610 B CN105736610 B CN 105736610B CN 201610260931 A CN201610260931 A CN 201610260931A CN 105736610 B CN105736610 B CN 105736610B
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- China
- Prior art keywords
- motor
- torque
- upper shell
- electronic control
- speed reduction
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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
- 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
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
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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
- F16D2125/44—Mechanical mechanisms transmitting rotation
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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
- F16D2125/44—Mechanical mechanisms transmitting rotation
- F16D2125/46—Rotating members in mutual engagement
- F16D2125/50—Rotating members in mutual engagement with parallel non-stationary axes, e.g. planetary gearing
Abstract
The invention relates to an electronic control actuating mechanism for parking braking, which comprises a speed reduction and torque increase device, a torque reduction device and a torque increase device, wherein the speed reduction and torque increase device is used for reducing the rotating speed and increasing the torque; the motor is used for providing power for the electronic control execution unit; the positioning vibration damper is used for keeping the center distance between the motor and the speed-reducing torque-increasing device and slowing down the impact vibration of the actuating mechanism in the using process; and the lower shell and the upper shell form an accommodating cavity for accommodating the speed reduction and torque increase device, the motor and the positioning vibration damper. The electronic control actuating mechanism with the structure can reliably ensure the stability of the center distance, can reduce the axial height of the parking actuating unit, and improves the application range of the parking actuating unit, thereby avoiding the risk of abnormal transmission sound and even jamming caused by low efficiency and short service life caused by non-parallel positioning of rigid connecting pieces.
Description
Technical Field
The invention relates to the technical field of vehicle braking, in particular to the technical field of parking braking systems of traditional motor vehicles and electric vehicles, and particularly relates to an electronic control executing mechanism for parking braking.
Background
In a conventional vehicle parking brake system (also called a hand brake), a driver operates a parking handle, and the parking handle drives a parking cable to drive a rear axle brake or a central brake, so that a braking torque is generated and acts on rear axle wheels to realize vehicle parking brake.
The parking mode of the hand brake type has been adopted, but the parking mechanism of the mode has a potential safety hazard, because the forces of different drivers for operating the parking pull rod are different, the parking braking torques generated by different drivers of the same vehicle are different, and especially for most drivers with insufficient operating force, certain risks exist.
Traditional hand power parking braking system needs the pulling force of the mechanical mechanism transmission parking handle of complicacy to the parking calliper, and mechanical efficiency is lower, uses the cable can take place to warp after the certain time, reduces the reliability of parking. After the automobile is braked for a long time, the friction plates are abraded to a certain extent, so that the gap between the brake blocks cannot be automatically adjusted, the stroke of a parking brake operating lever is increased, the parking brake reaction efficiency is reduced, the safety is reduced, the manual gap adjusting process is complicated, and the parking caliper with the gap adjusting mechanism is complex in self-adjusting mechanism and high in manufacturing cost.
When a vehicle equipped with the hand brake starts on a slope, a driver needs to manually release the hand brake and can stably start the vehicle by matching with an accelerator pedal, a clutch and the like, and the mode of the hand brake has higher requirement on the driving level of the driver.
With the advancement of technology, electronic parking brake systems are gradually replacing conventional hand brake parking brake systems. In the electron parking braking system, back calliper integral type electron parking brake uses more, and simple to operate is adopted by many brake producers, and the electron parking executor of this kind of form adopts the motor as the power supply mostly, and the device that increases the torsion is as the device that increases the speed reduction.
The motor and the speed-reducing torque-increasing device transmit power from the motor to the planetary gear speed-reducing torque-increasing device through a gear or a toothed belt, and a transmission center distance between the motor and the speed-reducing torque-increasing device is ensured through a connecting piece.
In order to maintain the center distance between the motor and the speed reduction and torque increase device, the following solutions are disclosed in the prior art. Chinese patent application No. 200780005928.7 entitled "noise-reduced electric brake actuator", which mentions that "the distance between the motor shaft and the gear shaft is fixed by means of rigid spacers, the opposite ends of which are positioned on different sides of the plane defined by the belt of the belt drive", which extend in an S-or Z-shape across the plane of the belt.
The Chinese patent application number is 201310755240.8 entitled "electronic parking actuating mechanism for vehicle brake system", and the invention patent refers to an integrated frame for keeping the center distance between a motor and a planetary gear mechanism. The one-piece frame, while addressing some of the shortcomings of the S-and Z-shaped rigid spacers to some extent during assembly and use, also has certain limitations.
The speed reduction and torque increase device is arranged in the integrated frame, the structural arrangement is complex, the assembly process is complex, and the transmission noise is high.
Z shape or S-shaped rigidity spacer when the assembly, rigidity spacer receives the extrusion of shell lid easily and takes place to warp, rigidity spare warp the back, the round pin axle of connecting at rigidity spacer one end takes place nonparallel with the motor shaft, efficiency descends, and the life-span shortens, causes the risk of transmission abnormal sound even card death.
The toothed belt pulley of chinese patent application No. 200780005928.7 has a helix angle of about 2 °, and due to the helix angle, during forward or reverse transmission, both the toothed belt and the pulley are subjected to a lateral force, which increases as the rotational speed and torque increase, thereby causing interference friction between the sides of the toothed belt and the pulley and the periphery, and reducing the service life of the toothed belt and the pulley.
"integral type frame" receive the restriction of casing installation space when the assembly for drive mechanism inner space is less, at rotatory in-process, the effect that the belt was received the centrifugal force is outwards stretched, causes belt and integral type frame to take place the interference friction, and the belt calorific capacity increases, and wearing and tearing strengthen, life-span reduction even unable work.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an electronic control actuating mechanism for parking braking, which can overcome the defects of complex assembly, interference friction, life attenuation, high noise and the like of the actuating mechanism of the conventional electronic parking braking system.
In order to achieve the above object, the present invention has the following configurations:
the electronic control actuator for parking brake is characterized by comprising:
the speed reduction and torque increase device is used for reducing the rotating speed and increasing the torque;
the motor is connected with the speed reduction and torque increase device and used for providing power for the electronic control execution unit, and two grooves and a positioning cylindrical surface are arranged at the end part of the motor;
the positioning vibration damping device is positioned between the motor and the upper shell and used for keeping the center distance between the motor and the speed-reducing torque-increasing device and damping the impact vibration of the actuating mechanism in the using process, and the positioning vibration damping device comprises a motor frame and a rubber ring;
and the lower shell and the upper shell form an accommodating cavity for accommodating the speed reduction and torque increase device, the motor and the positioning vibration damper.
Preferably, the speed reduction and torque increase device comprises:
the belt transmission device comprises a large belt wheel, a small belt wheel and a belt, wherein the large belt wheel and the small belt wheel are connected through the belt, and the small belt wheel is connected with an output shaft of the motor;
the gear transmission device comprises a planetary gear, a planet carrier, a gear ring and a torque output element, wherein the torque output element comprises a gear shaft and a gear shaft base.
Preferably, the small belt wheel is fixed on the output shaft, and the large belt wheel is fixed on the speed reduction and torque increase device.
Preferably, the speed reduction and torque increase device is provided with a boss, the lower shell is provided with a lower shell groove, and the boss is connected with the lower shell groove.
Preferably, the mechanism further comprises:
the motor meshing structure is arranged between the upper shell and the motor and used for limiting the position of the motor;
the meshing structure of the speed reduction and torque increase device is arranged on the inner side of the upper shell and used for limiting the position of the speed reduction and torque increase device;
and the motor frame meshing structure is arranged between the upper shell and the motor frame and used for limiting the position of the motor frame.
Preferably, the motor engaging structure comprises two bosses with holes and an installation positioning column, the bosses with holes are positioned on the inner side of the upper shell, and the installation positioning column is arranged on the motor frame.
Preferably, the motor frame engaging structure comprises an upper casing groove and an installation positioning column, the upper casing groove is located on the inner side of the upper casing, and the installation positioning column is located on the motor frame.
Furthermore, the rubber ring is positioned between the motor frame and the groove of the upper shell.
Preferably, the meshing structure of the speed reduction and torque increase device comprises a positioning pin hole and a positioning pin, the positioning pin hole is positioned on the inner side of the upper shell, and the positioning pin are arranged in the positioning pin hole in a penetrating mode.
Furthermore, a sliding shaft sleeve is arranged in the positioning pin hole.
Preferably, the bottom of the motor is provided with a motor base.
The electronic control actuating mechanism for parking braking can reliably ensure the stability of the center distance, reduce the axial height of the parking actuating unit and improve the application range of the parking actuating unit, thereby avoiding the risks of low efficiency, short service life and abnormal transmission sound even blocking caused by the unparallel positioning of rigid connecting pieces.
Drawings
Fig. 1 is a structural view of an electronic control actuator for parking brake according to the present invention.
Fig. 2 is an installation view of a motor frame and a rubber ring of the electronic control actuator for parking brake according to the present invention.
Fig. 3 is a schematic view of an upper housing recess and a dowel hole of an electronic control actuator for a parking brake according to the present invention.
Fig. 4 is a schematic view of an electronic control actuator for a parking brake according to the present invention having a sliding sleeve.
Fig. 5 is a structural view of a mechanism of the electronic control actuator for parking brake of the present invention, to which an upper case is not attached.
Fig. 6 is an internal structural view of a gear transmission of an electronic control actuator for parking brake according to the present invention.
Fig. 7 is a diagram of torque output components of an electronic control actuator for a parking brake according to the present invention.
The reference numbers illustrate:
1 upper shell
2 small belt pulley
3 leather belt
4 positioning pin
5 big belt wheel
6 speed-reducing and torque-increasing device
7 electric machine
8 lower casing
9 electric machine frame
10 rubber ring
11 central cylindrical hole
12 mounting positioning column
13 ring gear
15 positioning pin hole
16 upper shell groove
17 planetary carrier
18 planetary gear
19 torsion output element
20 sliding shaft sleeve
21 tooth-shaped shaft base
22-tooth-shaped shaft
Detailed Description
In order to more clearly describe the technical contents of the present invention, the following further description is given in conjunction with specific embodiments.
The mechanism comprises an upper shell, a lower shell, a motor, a torque increasing transmission device, a torque output device and a positioning vibration damping device. The torque-increasing transmission device comprises a belt transmission device and a gear transmission device, the belt transmission device comprises a large belt wheel, a small belt wheel and a belt, the large belt wheel and the small belt wheel are driven by the belt, the small belt wheel is connected with an output shaft of the motor, and the gear transmission device comprises a planetary gear, a gear ring and the like. The torque output element comprises a gear shaft and a gear shaft base. The positioning vibration damping device comprises a motor frame and a vibration damping ring, and is used for keeping the center distance between the motor and the torque-increasing transmission element, slowing down the impact vibration of the actuating mechanism in the using process and playing a role in protecting the motor and keeping the actuating mechanism to output stably.
The parking brake electronic control execution unit comprises a rubber base, the rubber base is fixed at the bottom of the motor 7, and the motor 7 is placed in a motor groove of the lower shell 8. The motor 7 is limited by the motor frame 9, the motor frame 9 is placed in a clamping groove in the upper portion of the motor 7, and the central cylindrical hole 11 of the motor frame 9 is matched with a shaft neck of the motor 7, so that the axial direction of the motor and the motor frame are completely positioned. The motor frame 9 is provided with a positioning column 12 which is inserted into an upper shell groove 16 on the upper shell 1, so that the motor frame 9 and the upper shell 1 are positioned, and the motor 7 and the upper shell 1 are ensured to be positioned. Motor frame 9 and last casing recess 16 on the casing 1 between install rubber circle 10, this rubber seat plays the effect of damping buffering, protection motor frame avoids being pressed to deform or the fracturing by external force when the casing assembly, has guaranteed that the motor is in the suspension state, makes to have certain clearance between motor and the lower casing 8 all the time, does benefit to thermal conduction diffusion and the effect of shielding noise to a certain extent. The output shaft of the motor 7 is provided with the small belt wheel 2 in a pressing mode, power output by the motor is transmitted to the large belt wheel 5 through the belt 3, the large belt wheel 5 is axially positioned through the positioning pin 4 and moves circumferentially around the center pin, and therefore the power is transmitted to the speed reduction and torque increase device 6. The positioning pin 4 is matched with a positioning pin hole on the upper shell, so that the axial point position of the speed reduction and torque increase device 6 and the upper shell 1 is ensured, and the center distance between the motor 7 and the speed reduction mechanism 6 is further determined. The speed-reducing and torque-increasing device 6 is arranged in the lower shell 8, a boss is arranged on the speed-reducing and torque-increasing device 6 and placed in a groove in the lower shell 8, and the speed-reducing and torque-increasing device and the lower shell are limited so as to ensure stable output of torque. The upper shell 1 and the lower shell 8 are welded together by an ultrasonic welding machine. The end part of the motor is provided with two grooves and a positioning cylindrical surface, and the motor has the function of fixing a motor frame. The upper shell 1 is provided with an upper shell groove 16 and a positioning pin hole 15, wherein two bosses with holes are matched with a mounting positioning column 12 on a motor frame 9, and the positioning pin hole 15 is matched with a positioning pin 4.
In a preferred embodiment, the upper housing 1 is designed with a positioning pin hole, which can be installed with a sliding shaft sleeve 20 if necessary, and the sliding shaft sleeve 20 is not limited to engineering plastics, copper materials and powder metallurgy materials. The positioning pin 4 can be directly fixed in the point position pin hole of the upper shell 1 if necessary, and can also be fixed on a speed reduction and torque increase device. The rubber ring 10 on the motor frame 9 can be pressed on the motor or directly coated and molded with the motor frame, and is not limited to the two connection modes.
The electronic control actuating mechanism for parking braking can reliably ensure the stability of the center distance, reduce the axial height of the parking actuating unit and improve the application range of the parking actuating unit, thereby avoiding the risks of low efficiency, short service life and abnormal transmission sound even blocking caused by the unparallel positioning of rigid connecting pieces.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (5)
1. An electronically controlled actuator for a parking brake, said actuator comprising:
the speed reduction and torque increase device is used for reducing the rotating speed and increasing the torque;
the motor is connected with the speed reduction and torque increase device and used for providing power for the electronic control execution unit, and two grooves and a positioning cylindrical surface are arranged at the end part of the motor;
the positioning vibration damping device is positioned between the motor and the upper shell and used for keeping the center distance between the motor and the speed-reducing torque-increasing device and damping the impact vibration of the actuating mechanism in the using process, and the positioning vibration damping device comprises a motor frame and a rubber ring;
the lower shell and the upper shell form an accommodating cavity for accommodating the speed reduction and torque increase device, the motor and the positioning vibration damper;
the mechanism also comprises:
the motor meshing structure is arranged between the upper shell and the motor and used for limiting the position of the motor;
the meshing structure of the speed reduction and torque increase device is arranged on the inner side of the upper shell and used for limiting the position of the speed reduction and torque increase device;
the motor frame meshing structure is arranged between the upper shell and the motor frame and used for limiting the position of the motor frame;
the motor meshing structure comprises two bosses with holes and an installation positioning column, the bosses with the holes are positioned on the inner side of the upper shell, and the installation positioning column is arranged on the motor frame; the motor frame meshing structure comprises an upper shell groove and an installation positioning column, the upper shell groove is positioned on the inner side of the upper shell, and the installation positioning column is positioned on the motor frame; the rubber ring is positioned between the motor frame and the groove of the upper shell;
the speed reduction and torque increase device comprises:
the belt transmission device comprises a large belt wheel, a small belt wheel and a belt, wherein the large belt wheel and the small belt wheel are connected through the belt, and the small belt wheel is connected with an output shaft of the motor;
the gear transmission device comprises a planetary gear, a planet carrier, a gear ring and a torque output element, wherein the torque output element comprises a tooth-shaped shaft and a tooth-shaped shaft base;
the small belt wheel is fixed on the output shaft, and the large belt wheel is fixed on the speed-reducing and torque-increasing device;
the motor frame is only arranged above the motor.
2. The electronic control actuator for parking brake according to claim 1, wherein the deceleration torque increasing device is provided with a boss, the lower housing is provided with a lower housing recess, and the boss is connected with the lower housing recess.
3. The electronic control actuator for parking brake of claim 1, wherein the engagement structure of the deceleration torque increasing device comprises a positioning pin hole and a positioning pin, the positioning pin hole is located inside the upper housing, and the positioning pin is inserted into the positioning pin hole.
4. The electronic control actuator for parking brake of claim 3, wherein said dowel hole is further provided with a sliding bushing.
5. The electronic control actuator for parking brake as claimed in claim 1, wherein said motor base is provided at a bottom of said motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260931.4A CN105736610B (en) | 2016-04-22 | 2016-04-22 | Electronic control actuating mechanism for parking brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260931.4A CN105736610B (en) | 2016-04-22 | 2016-04-22 | Electronic control actuating mechanism for parking brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736610A CN105736610A (en) | 2016-07-06 |
| CN105736610B true CN105736610B (en) | 2021-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610260931.4A Active CN105736610B (en) | 2016-04-22 | 2016-04-22 | Electronic control actuating mechanism for parking brake |
Country Status (1)
| Country | Link |
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| CN (1) | CN105736610B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355497B (en) * | 2017-08-21 | 2023-09-19 | 瑞立集团有限公司 | Caliper type 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 |
| CN110107624A (en) * | 2019-05-05 | 2019-08-09 | 万向钱潮股份有限公司 | A kind of electronic parking executing agency of motor vehicle braking system |
| CN111873973B (en) * | 2020-07-23 | 2021-04-30 | 平湖锟键汽车科技有限公司 | MGU unit of electron parking structure among new energy automobile |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4084775B2 (en) * | 2004-03-31 | 2008-04-30 | 本田技研工業株式会社 | Parking brake device |
| DE102006007755B4 (en) * | 2006-02-20 | 2013-10-10 | Lucas Automotive Gmbh | Low noise electric brake actuator |
| CN102853009B (en) * | 2012-09-26 | 2015-07-15 | 芜湖伯特利汽车安全系统有限公司 | Electronic parking actuator for electronic parking brake system of motor vehicle |
| CN103742573A (en) * | 2013-12-31 | 2014-04-23 | 芜湖伯特利汽车安全系统有限公司 | Electronic parking actuator used for car braking system |
| CN104154148B (en) * | 2014-07-08 | 2017-03-08 | 邵亮 | Electric parking brake performs device |
| CN204140724U (en) * | 2014-07-31 | 2015-02-04 | 长城汽车股份有限公司 | Electric brake actuator, braking system and vehicle |
| CN205639399U (en) * | 2016-04-22 | 2016-10-12 | 宁波格陆博科技有限公司 | A electronic control actuating mechanism for parking braking |
-
2016
- 2016-04-22 CN CN201610260931.4A patent/CN105736610B/en active Active
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| CN105736610A (en) | 2016-07-06 |
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Effective date of registration: 20180628 Address after: 226000 room 0301, building 11, happy New Town, Gangzha District, Nantong, Jiangsu. Applicant after: Grid Technology Co., Ltd. Address before: 315171 Ji Shi Gang Industrial Park, Yinzhou District, Ningbo, Zhejiang Applicant before: NINGBO GLOBAL TECHNOLOGY CO., LTD. |
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