KR20100138102A - Electrical mechanical brake - Google Patents

Electrical mechanical brake Download PDF

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Publication number
KR20100138102A
KR20100138102A KR1020090056475A KR20090056475A KR20100138102A KR 20100138102 A KR20100138102 A KR 20100138102A KR 1020090056475 A KR1020090056475 A KR 1020090056475A KR 20090056475 A KR20090056475 A KR 20090056475A KR 20100138102 A KR20100138102 A KR 20100138102A
Authority
KR
South Korea
Prior art keywords
gear
shaft
bevel gear
screw shaft
drive motor
Prior art date
Application number
KR1020090056475A
Other languages
Korean (ko)
Inventor
김주곤
Original Assignee
주식회사 만도
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 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020090056475A priority Critical patent/KR20100138102A/en
Publication of KR20100138102A publication Critical patent/KR20100138102A/en

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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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • 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
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
    • F16D2125/40—Screw-and-nut
    • 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
    • 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
    • F16D2125/52—Rotating members in mutual engagement with non-parallel stationary axes, e.g. worm or bevel gears

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

Disclosed is an electronic braking device capable of efficiently utilizing a space of a body portion of a caliper housing. The electronic braking device includes a pressure member removably installed in the caliper housing to press one of the friction pads, a screw shaft coupled to the pressure member, a power unit connected to the screw shaft, and a bevel gear assembly coupled to the power unit. And a drive motor for rotating the bevel gear assembly. Accordingly, as the bevel gear assembly transmits the rotational force of the drive motor to the power unit, the space can be efficiently utilized.

Description

Electronic brake system

The present invention relates to an electronic braking device that can utilize space efficiently.

In general, a vehicle braking device is a device that obtains a braking force by pressing a portion of a disk-shaped disk rotating together with a wheel with friction pads on both sides. The braking force provided to such a braking device is obtained by hydraulic pressure or electric rotational force of the motor. Here, the case of obtaining the braking force through the motor is called an electronic mechanical brake (EMB).

The electromagnetic braking device includes a drive motor, a screw gear portion coupled to the rotation shaft of the drive motor, and a pressing member for pressing the friction pad while advancing by the rotation of the screw gear portion.

However, the electronic braking device as described above has a problem of inferior space efficiency because it occupies a large space in the connection structure between the driving motor and the screw gear unit.

The present invention is to solve the above problems, an object of the present invention to provide an electronic braking device that can use the space efficiently.

In accordance with an aspect of the present invention, there is provided an electronic braking device including friction pads for pressurizing a disk, a carrier for supporting the friction pads, and a caliper housing removably supported on the carrier for pressurization of the friction pads. And, including a pressing device for pressing the friction pad,

The pressurizing device includes a pressurizing member removably installed in the caliper housing so as to press one of the friction pads, a screw shaft coupled to the pressurizing member, a power supply unit connected to the screw shaft, and coupled to the boosting unit. And a bevel gear assembly, and a drive motor for rotating the bevel gear assembly.

The power unit includes a first gear installed on the screw shaft, a second gear meshed with the first gear, and a power shaft installed with the second gear and intersecting the drive shaft of the drive motor. do.

The power unit includes a sun gear, a plurality of planetary gears external to the sun gear, a ring gear inscribed with the plurality of planetary gears, a carrier installed on the screw shaft to support the plurality of planetary gears; The solar gear is installed, characterized in that it comprises a boost shaft disposed to intersect with the drive shaft of the drive motor.

The bevel gear assembly is characterized in that it comprises a first bevel gear installed on the boost shaft, and a second bevel gear externally intersecting to intersect the first bevel gear and installed on the drive shaft of the drive motor.

The electronic braking apparatus of the present invention employs a bevel gear assembly to transmit the rotational force of the drive motor to the pressing member, thereby efficiently utilizing a narrow mounting space.

Disc brake according to an embodiment of the present invention is a disk 10 that rotates with the wheel of the vehicle, as shown in Figure 1, the disk 10 of the disk 10 to perform the brake by pressing both sides of the disk 10 First and second friction pads 11 and 12 disposed on both sides, the caliper housing 20 for pressurizing the first and second friction pads 11 and 12, and the caliper housing 20 for braking operation. It is provided with a pressurizing device 40 installed in.

The first and second friction pads 11 and 12 are supported in a retractable manner on a carrier 30 fixed to the vehicle body so that the first and second friction pads 11 and 12 can retreat toward both sides of the disc 10, and the caliper housing 20 is also provided. The second friction pads 11 and 12 are supported by the carrier 30 so as to advance and retreat in the pressing direction.

The caliper housing 20 supports an empty body portion 21, an extension portion 22 extending from the body portion 21 toward the second friction pad 12, and a rear surface of the second friction pad 12. And a finger portion 23 connected to the extension portion 22. And the pressurizing device 40 is mounted on the body portion 21 of the caliper housing 20 to pressurize the first friction pad 11 in any one of the first and second friction pads (11, 12) in the present invention. do.

First, the pressurizing device 40 includes a pressurizing member 41 installed in the body 21 of the caliper housing 20 to be retracted and pressurized to pressurize and release the first friction pad 11. A screw shaft 42 coupled to the screw shaft 42, a power unit 50 connected to the screw shaft 42, a bevel gear assembly 60 connected to the power unit 50, a bevel gear assembly 60, It includes a drive motor 46 is connected.

The pressing member 41 is installed inside the body portion 21 so as to advance and retreat in a restricted state, and has a female screw portion coupled to the screw shaft 42. The structure for limiting the rotation of the pressing member 41 is the outer surface of the pressing member 41 and the inner surface of the body portion 21 coupled correspondingly is polygonal or the outer surface and the body portion 21 of the pressing member 41. It can be implemented by the manner in which the guide means (not shown) of the key and key groove shape is installed on the inner surface.

The screw shaft 42 has a male screw portion on one side so as to be coupled to the female screw portion of the pressing member 41. In addition, the screw shaft 42 is rotatably provided in the body portion 21 so as to be parallel to the direction in which the pressing member 41 moves forward and backward. In order to support the screw shaft 42, the first bearing 47 is installed in the body 21.

The power unit 50 includes a first gear 51 provided on the screw shaft 42, a second gear 52 external to the first gear 51, and a second gear 52. A backing shaft 53 is included. That is, the power unit 50 is a spur gear assembly installed in the empty space inside the body portion 21 as shown.

At this time, as described above, the second gear 52 is installed at one end of the force shaft 53 and the first bevel gear 61 is coupled to the other end. In addition, a second bearing 48 spaced apart from each other for supporting the backing shaft 53 is provided on the outer surface of the backing shaft 53.

As for the 1st bevel gear 61, the 2nd bevel gear 62 provided in the orthogonal direction to this 1st bevel gear 61 is circumscribed. The second bevel gear 62 is provided on the drive shaft 45 of the drive motor 46 described above. That is, the drive shaft 45 is disposed in a direction crossing the boosting shaft 53, and the first and second bevel gears 61 and 62 disposed on the driving shaft 45 and the boosting shaft 53 are bevel gears, respectively. Assembly 60.

The drive motor 13 is fixed to the body portion 21 of the caliper housing 20 through the fastening of the fixing screw. One side of the drive motor 46 is a manual release device 49 is installed. The manual loosening device 49 is a device for releasing the operation when the disk 10 and the friction pads 11 and 12 stop working due to an abnormality of the driving motor 46 or the electric system.

The operation of the electromagnetic brake provided in the above structure will be described.

When the driver performs the braking operation, the driving motor 46 rotates for braking, and when the driver releases the braking operation, the driving motor 46 rotates in reverse to release the braking.

At this time, when the drive motor 46 rotates for braking, the rotational force of the drive motor 46 is transmitted to the drive shaft 45 to rotate. When the second bevel gear 62 rotates by the rotation of the drive shaft 45, the first bevel gear 61 which is external to the second bevel gear 62 rotates.

When the first bevel gear 61 rotates, the backing shaft 53 to which the first bevel gear 61 is coupled rotates. When the backing shaft 53 rotates, the second gear 52 rotates. The first gear 51 and the screw shaft 42 rotate. At this time, since the power unit 50 is made of a spur gear assembly including the first gear 51, the second gear 52, and the backing shaft 53 as described above, the rotation speed of the screw shaft 42 is slowed. As much as the rotational force transmitted to the screw shaft 42 becomes larger.

When the screw shaft 42 rotates, the pressing member 41 advances toward the first friction pad 11 to press the first friction pad 11, and the caliper housing 20 causes the pressing member 41 to react. The braking is performed by moving in the reverse direction of the finger 23 to press the second friction pad 12 toward the disk 10. When the driving motor 46 reverses to release the braking, the braking is released by the pressing member 41 moving in the direction of releasing the pressurization of the first friction pad 11.

In the electromagnetic braking device, since the rotation of the driving motor 46 is boosted by the spur gear assembly, the rotational force transmitted to the screw shaft 42 is increased. Therefore, the pressing member 41 can press the first friction pad 11 with a large force, thereby exhibiting a large braking force. In addition, the electromagnetic braking device is equipped with the first or second bevel gears 61 and 62 on the drive shaft 45 and the boosting shaft 53, respectively, so as to transmit the rotation of the drive motor 46 to efficiently space. It can be utilized.

On the other hand, Figure 2 shows another embodiment of the electronic braking apparatus of the present invention. As shown in FIG. 2, the electromagnetic braking device employs the power unit 150 as a planetary gear assembly.

Specifically, the power unit 150 includes a sun gear 151, a plurality of planetary gears 153 circumscribed to the sun gear 151, a ring gear 155 inscribed with the plurality of planetary gears 153, Carrier 154 for supporting a plurality of planetary gears 153, and a backing shaft 152, the sun gear 151 is provided at one end.

At this time, the carrier 154 is installed on the screw shaft 42 to support the plurality of planetary gears 153 as described above. In addition, a first bevel gear 61 is coupled to the other end of the backing shaft 152, and a second bevel gear 62 coupled to one end of the drive shaft 45 is circumscribed to the first bevel gear 61. .

The power unit 150 as described above, when the first bevel gear 61 and the second bevel gear 62 is rotated by the operation of the drive motor 46, the sun gear 151 is rotated, the sun gear 151 The rotation of the planetary gears 153 revolves and the rotation of the planetary gears 153 is transmitted to the screw shaft 42 through the carrier 154, thereby increasing the rotational force transmitted to the screw shaft 42. . In addition, the electromagnetic braking device is equipped with a first or second bevel gear (61, 62) on the drive shaft 45 and the force shaft 152, respectively, to transfer the rotation of the drive motor 46 to efficiently space It can be utilized.

1 is a cross-sectional view showing an electronic braking apparatus according to an embodiment of the present invention.

2 is a cross-sectional view showing an electronic braking apparatus according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10 ... disk 11,12 ... 1,2 friction pad

20 ... caliper housing 30 ... carrier

40 ... Pressure unit 41 ... Pressure element

42 Screw shaft 45 Drive shaft

46.Drive motor 50 ... Power unit

51 ... 1st Gear 52 ... 2nd Gear

53.Power shaft 60 ... Bevel gear assembly

61 ... Bevel Gears, 62 62 ... Bevel Gears, Second

150 ... Power Unit 151 ... Sun Gear

152 Power Shaft 153 Planetary Gears

154 Carrier of planetary gear assembly 155 Ring gear

Claims (4)

Friction pads for pressurizing the disk, a carrier for supporting the friction pads, a caliper housing removably supported on the carrier for pressurizing the friction pads, and a pressing device for pressing the friction pad, The pressurizing device includes a pressurizing member removably installed in the caliper housing so as to press one of the friction pads, a screw shaft coupled to the pressurizing member, a power supply unit connected to the screw shaft, and coupled to the boosting unit. And a bevel gear assembly and a drive motor for rotating the bevel gear assembly. The method of claim 1, The power unit includes a first gear installed on the screw shaft, a second gear meshed with the first gear, and a power shaft installed with the second gear and intersecting the drive shaft of the drive motor. Electronic braking system. The method of claim 1, The power unit includes a sun gear, a plurality of planetary gears external to the sun gear, a ring gear inscribed with the plurality of planetary gears, a carrier installed on the screw shaft to support the plurality of planetary gears; And a backing shaft disposed to intersect the driving shaft of the driving motor, wherein the solar gear is installed. The method of claim 2 or 3, The bevel gear assembly includes a first bevel gear installed on the boost shaft and a second bevel gear externally intersecting to intersect the first bevel gear and installed on a drive shaft of the drive motor. Device.
KR1020090056475A 2009-06-24 2009-06-24 Electrical mechanical brake KR20100138102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090056475A KR20100138102A (en) 2009-06-24 2009-06-24 Electrical mechanical brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090056475A KR20100138102A (en) 2009-06-24 2009-06-24 Electrical mechanical brake

Publications (1)

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KR20100138102A true KR20100138102A (en) 2010-12-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090056475A KR20100138102A (en) 2009-06-24 2009-06-24 Electrical mechanical brake

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107489713A (en) * 2017-08-22 2017-12-19 濮阳职业技术学院 A kind of electro-mechanical brake apparatus
CN107738639A (en) * 2017-09-11 2018-02-27 浙江零跑科技有限公司 A kind of electric car bevel gear type braking executive device and method
CN113431852A (en) * 2021-07-23 2021-09-24 合肥工业大学 High-efficiency self-locking electronic mechanical brake

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107489713A (en) * 2017-08-22 2017-12-19 濮阳职业技术学院 A kind of electro-mechanical brake apparatus
CN107489713B (en) * 2017-08-22 2019-05-10 濮阳职业技术学院 A kind of electro-mechanical brake apparatus
CN107738639A (en) * 2017-09-11 2018-02-27 浙江零跑科技有限公司 A kind of electric car bevel gear type braking executive device and method
CN113431852A (en) * 2021-07-23 2021-09-24 合肥工业大学 High-efficiency self-locking electronic mechanical brake
CN113431852B (en) * 2021-07-23 2024-04-12 合肥工业大学 High-efficiency self-locking electromechanical brake

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A201 Request for examination
E601 Decision to refuse application