CN111059177A - Reduction gear arrangement mode for electronic brake booster unit - Google Patents

Reduction gear arrangement mode for electronic brake booster unit Download PDF

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Publication number
CN111059177A
CN111059177A CN201911233348.4A CN201911233348A CN111059177A CN 111059177 A CN111059177 A CN 111059177A CN 201911233348 A CN201911233348 A CN 201911233348A CN 111059177 A CN111059177 A CN 111059177A
Authority
CN
China
Prior art keywords
gear
driving wheel
double
shell
motor
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.)
Pending
Application number
CN201911233348.4A
Other languages
Chinese (zh)
Inventor
李晨风
高祥
侯丽珠
杨志刚
仝世学
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Trinova Automotive Technology Co ltd
Original Assignee
Tianjin Trinova Automotive Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Trinova Automotive Technology Co ltd filed Critical Tianjin Trinova Automotive Technology Co ltd
Priority to CN201911233348.4A priority Critical patent/CN111059177A/en
Publication of CN111059177A publication Critical patent/CN111059177A/en
Pending legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • 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
    • F16D2121/02—Fluid pressure
    • F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Gear Transmission (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

The invention discloses a reducing gear arrangement mode for an electronic brake power assisting device, which comprises a driving wheel, wherein a double-layer gear bull gear meshed with the driving wheel is arranged on the right side of the driving wheel, a bull gear meshed with the double-layer gear pinion is arranged on the right side of the double-layer gear pinion, the driving wheel is connected with an output shaft of a motor, and the central axes of three gears which are parallel to each other are not arranged in the same plane. According to the arrangement mode of the reduction gear for the electronic brake power assisting device, the wheel center position of the large gear is taken as a fixed point, the vertical upward direction of the oil inlet of the main cylinder is the invariable Z-Z direction, the wheel centers of the double-layer gear and the driving wheel are not in the same direction with the Z-Z direction, and under the condition that the double-layer gear and the driving wheel are not interfered with other parts of the electronic brake power assisting device, the double-layer gear and the driving wheel are deviated by a certain angle, so that the overall size of the mechanism in the Z-Z direction is shortened by a certain distance, the whole mechanism is more compact, the overall size of an assembly is reduced, and the requirement on installation environment is lowered.

Description

Reduction gear arrangement mode for electronic brake booster unit
Technical Field
The invention relates to the technical field of automobile braking, in particular to a reduction gear arrangement mode for an electronic braking power assisting device.
Background
In order to reduce the physical strength consumption of a driver, a gasoline passenger car adopts a vacuum booster type hydraulic braking system, and the vacuum degree in an air inlet pipe of a gasoline engine is utilized to generate boosting force to help the driver to brake. The hybrid electric vehicle or the pure electric vehicle adopts an electric vacuum pump to generate vacuum degree due to insufficient vacuum degree provided by an engine, but the space occupied by the vacuum pump and the vacuum booster in the vehicle is too large, and the vacuum booster is an uncoupled system and cannot be actively braked, so that an electromechanical servo boosting mechanism appears, for example, the brake boosting of the modern iBooster2 is realized by amplifying the torque of a motor through a two-stage cylindrical helical gear speed reducing gear train, and the torque is converted into thrust through a screw nut mechanism, so that a brake master cylinder piston is pushed.
In the existing bosch electromechanical brake booster, the deceleration and torque-increasing mechanism is of a two-stage expansion structure, and three wheel centers of a deceleration gear are on the same axis Z-Z, so that the length of the mechanism in the Z-Z direction (in terms of an automobile coordinate system, the Z direction) is large, and if the mechanism is arranged in a cab in a front-mounted manner, a motor may be too close to a brake pedal to meet the standard requirements of a vehicle: no obstacle exists in a certain space above, below, left, right, front and back of the foot-stepping position of the brake pedal. .
Disclosure of Invention
The invention aims to overcome the defects of small application range, low manufacturing precision and the like in the prior art, and provides a reduction gear arrangement mode for an electronic brake booster device. The arrangement mode of the reduction gear for the electronic brake power assisting device has the characteristics of wide application range, high manufacturing precision and the like.
In order to achieve the purpose, the invention provides the following technical scheme:
a reduction gear for an electronic brake booster unit comprises a driving wheel, wherein a double-layer gear bull gear meshed with the driving wheel is arranged on the right side of the driving wheel, a bull gear meshed with the double-layer gear pinion is arranged on the right side of the double-layer gear pinion, the driving wheel is connected with an output shaft of a motor, and the central axes of three gears which are parallel to each other are not arranged in the same plane;
the large gear is coaxially connected with a mechanism assembly capable of converting rotary motion into linear motion, the mechanism is connected with an axial force transmission mechanism assembly along the Z-Z direction, the axial force transmission mechanism assembly along the Z-Z direction is contacted with a main cylinder piston, and the main cylinder is arranged outside the shell.
A reduction gear arrangement for an electric brake booster comprising the steps of:
step 1: firstly, determining the wheel center position of a bull gear as an immobile point, and then taking the vertical upward direction of an oil inlet of a main cylinder as a constant Z-Z direction;
step 2: firstly, mounting the three gear sub-assemblies on a shell, then mounting parts in other shells, closing the shell and screwing bolts, and then mounting a motor on the shell, wherein the motor is connected with a driving wheel shaft by adopting a coupler; or the large gear and the double-layer gear sub-assembly are firstly installed on the shell, then the parts in other shells are installed, after the shell is closed and the bolt is screwed down, the driving wheel is in interference connection with the output shaft of the motor, and then the motor is installed on the shell;
and step 3: finally, the master cylinder is mounted on the housing.
Compared with the prior art, the invention has the beneficial effects that:
according to the arrangement mode of the reduction gear for the electronic brake power assisting device, the wheel center position of the large gear is taken as a fixed point, the vertical upward direction of the oil inlet of the main cylinder is the invariable Z-Z direction, the wheel centers of the double-layer gear and the driving wheel are not in the same direction with the Z-Z direction, and under the condition that the double-layer gear and the driving wheel are not interfered with other parts on the electronic brake power assisting device, the double-layer gear and the driving wheel are deviated by a certain angle, so that the overall dimension of the mechanism in the Z-Z direction is shortened by a certain value, the whole mechanism is more compact, and the manufacturing precision is improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention.
Reference numbers in the figures: 1. a driving wheel; 2. a double-layer gear; 3. a bull gear; 4. a motor; 5. a master cylinder; 6. a mechanism assembly for converting the rotary motion into linear motion; 7. an axial force transmission mechanism assembly along the Z-Z axis; 8. a lifting lug connected with the pedal and the like.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution:
a reduction gear for an electronic braking power assisting device comprises a driving wheel 1, wherein a double-layer gear 2 meshed with the driving wheel 1 is arranged on the right side of the driving wheel 1, the double-layer gear 2 is close to the front side of the driving wheel 1, the vertical upward direction of an oil inlet is the unchanged Z-Z direction, the overall size of the mechanism in the Z-Z direction is shortened by a certain value through the arrangement of the double-layer gear 2 and the installation position of a main gear 1, the whole mechanism is more compact, the manufacturing precision is improved, a large gear 3 meshed with the double-layer gear 2 is arranged on the right side of the double-layer gear, the driving wheel 1 is connected with an output shaft of a motor 4, and the central axes of three gears parallel to each other are not;
the bull gear 1 is coaxially connected with a mechanism assembly 6 capable of converting rotary motion into linear motion, the mechanism is connected with an axial force transmission mechanism assembly 7 along the Z-Z direction, the axial force transmission mechanism assembly 7 along the Z-Z direction is in piston contact with a master cylinder 5, and the master cylinder 5 is arranged outside the shell.
A reduction gear arrangement for an electric brake booster comprising the steps of:
step 1: firstly, determining the wheel center position of the large gear 3 as a stationary point, and then taking the vertical upward direction of an oil inlet of a main cylinder 5 as a constant Z-Z direction;
step 2: when the positions of the gear axes of the driving wheel and the double-layer gear are designed and arranged, the wheel centers of the double-layer gear 2 and the driving wheel 1 are ensured not to be in the same direction with the Z-Z direction;
and step 3: firstly, mounting the three gear sub-assemblies on a shell, then mounting parts in other shells, closing the shell and screwing bolts, mounting a motor 4 on the shell, and connecting the motor 4 with a driving wheel 1 shaft by adopting a coupling; or the large gear 3 and the double-layer gear 2 sub-assembly are firstly installed on the shell, then the parts in other shells are installed, after the shell is closed and the bolt is screwed, the driving wheel 1 is in interference connection with the output shaft of the motor 4, and then the motor 4 is installed on the shell;
and 4, step 4: finally, the master cylinder 5 is mounted on the housing.
The working principle is as follows: during design, the wheel center position of the large gear 3 is determined as an immovable point, then the arrangement position of the gear axis relative to the Z-Z direction is changed to be different from the same axis under the conditions that the gear center distance is unchanged and the gear center distance is not interfered with other parts in the device when the axis position of the secondary reduction gear is designed, so that the overall dimension of the mechanism in the Z-Z direction is shortened by a certain value, the whole mechanism is more compact, the manufacturing precision is improved, during installation, three gear subassemblies are firstly installed on a shell, then the parts in other shells are installed, after the shell is closed and a bolt is screwed, the motor 4 is installed on the shell, and the motor 4 is connected with the shaft of the driving wheel 1 through a coupling; or the large gear 3 and the double-layer gear 2 sub-assembly are firstly installed on the shell, then the parts in other shells are installed well, after the shell is closed and the bolt is screwed down, the driving wheel 1 and the output shaft of the motor 4 are connected in an interference mode, the motor 4 is installed on the shell, and finally the main cylinder 5 is installed on the shell.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. A reduction gear that electronic braking booster unit used, includes action wheel (1), its characterized in that: the right side of the driving wheel (1) is provided with a double-layer gear (2) which is meshed with the driving wheel, the right side of the double-layer gear (2) is provided with a large gear (3) which is meshed with the double-layer gear, the driving wheel (1) is connected with an output shaft of a motor (4), and the central axes of the three gears which are parallel to each other are not arranged in the same plane;
the bull gear (1) is coaxially connected with a mechanism assembly (6) capable of converting rotary motion into linear motion, the mechanism is connected with an axial force transmission mechanism assembly (7) along the Z-Z direction, the axial force transmission mechanism assembly (7) along the Z-Z direction is in contact with a master cylinder (5) piston, and the master cylinder (5) is installed outside the shell.
2. A reduction gear arrangement for an electric brake assist device according to claim 1, comprising the steps of:
step 1: firstly, determining the wheel center position of the large gear (3) as an immobile point, and then taking the vertical upward direction of an oil inlet of the main cylinder (5) as a invariable Z-Z direction;
step 2: the three gear sub-assemblies are installed on the shell, then parts in other shells are installed well, after the shell is closed and the bolt is screwed down, the motor (4) is installed on the shell, and the motor (4) is connected with the shaft of the driving wheel (1) through a coupler; or the large gear (3) and the double-layer gear (2) sub-assembly are firstly installed on the shell, then the parts in other shells are installed, after the shell is closed and the bolt is screwed down, the driving wheel (1) is in interference connection with the output shaft of the motor (4), and then the motor (4) is installed on the shell;
and step 3: finally, the master cylinder (5) is mounted on the housing.
CN201911233348.4A 2019-12-05 2019-12-05 Reduction gear arrangement mode for electronic brake booster unit Pending CN111059177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911233348.4A CN111059177A (en) 2019-12-05 2019-12-05 Reduction gear arrangement mode for electronic brake booster unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911233348.4A CN111059177A (en) 2019-12-05 2019-12-05 Reduction gear arrangement mode for electronic brake booster unit

Publications (1)

Publication Number Publication Date
CN111059177A true CN111059177A (en) 2020-04-24

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Application Number Title Priority Date Filing Date
CN201911233348.4A Pending CN111059177A (en) 2019-12-05 2019-12-05 Reduction gear arrangement mode for electronic brake booster unit

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840405A1 (en) * 2006-03-31 2007-10-03 Hitachi, Ltd. Electric disk brake, caliper for the electric disk brake, motor/controller unit for the electric disk brake, and method for assembling the caliper for the electric disk brake
KR20130008348A (en) * 2011-07-12 2013-01-22 현대모비스 주식회사 Electric parking brake in vehicle
CN103032498A (en) * 2011-09-28 2013-04-10 日立汽车系统株式会社 Disk brake apparatus
CN204493692U (en) * 2015-02-02 2015-07-22 杭州金兰达新能源科技有限公司 Drag-line EPB actuator
CN105156520A (en) * 2015-09-18 2015-12-16 宁波拓普智能刹车系统有限公司 Electronic brake assistor with ball screw structure
WO2016096465A1 (en) * 2014-12-17 2016-06-23 Volkswagen Aktiengesellschaft Electromechanical brake booster
US20160272184A1 (en) * 2012-11-13 2016-09-22 Robert Bosch Gmbh Brake Booster
CN107364436A (en) * 2017-06-09 2017-11-21 宁波吉利汽车研究开发有限公司 A kind of electric booster for vehicle braking
CN212195417U (en) * 2019-12-29 2020-12-22 吉林东光奥威汽车制动系统有限公司 Electronic brake booster for automobile

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840405A1 (en) * 2006-03-31 2007-10-03 Hitachi, Ltd. Electric disk brake, caliper for the electric disk brake, motor/controller unit for the electric disk brake, and method for assembling the caliper for the electric disk brake
KR20130008348A (en) * 2011-07-12 2013-01-22 현대모비스 주식회사 Electric parking brake in vehicle
CN103032498A (en) * 2011-09-28 2013-04-10 日立汽车系统株式会社 Disk brake apparatus
US20160272184A1 (en) * 2012-11-13 2016-09-22 Robert Bosch Gmbh Brake Booster
WO2016096465A1 (en) * 2014-12-17 2016-06-23 Volkswagen Aktiengesellschaft Electromechanical brake booster
CN204493692U (en) * 2015-02-02 2015-07-22 杭州金兰达新能源科技有限公司 Drag-line EPB actuator
CN105156520A (en) * 2015-09-18 2015-12-16 宁波拓普智能刹车系统有限公司 Electronic brake assistor with ball screw structure
CN107364436A (en) * 2017-06-09 2017-11-21 宁波吉利汽车研究开发有限公司 A kind of electric booster for vehicle braking
CN212195417U (en) * 2019-12-29 2020-12-22 吉林东光奥威汽车制动系统有限公司 Electronic brake booster for automobile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李俊红: "真空助力泵的使用与维修", 《汽车与配件》 *

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Application publication date: 20200424