KR20090008913A - Disk brake for vehicle - Google Patents

Disk brake for vehicle Download PDF

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Publication number
KR20090008913A
KR20090008913A KR1020070072262A KR20070072262A KR20090008913A KR 20090008913 A KR20090008913 A KR 20090008913A KR 1020070072262 A KR1020070072262 A KR 1020070072262A KR 20070072262 A KR20070072262 A KR 20070072262A KR 20090008913 A KR20090008913 A KR 20090008913A
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KR
South Korea
Prior art keywords
friction pad
reducer
drive motor
braking
movable friction
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Application number
KR1020070072262A
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Korean (ko)
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KR100885813B1 (en
Inventor
김주곤
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주식회사 만도
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Priority to KR1020070072262A priority Critical patent/KR100885813B1/en
Publication of KR20090008913A publication Critical patent/KR20090008913A/en
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Publication of KR100885813B1 publication Critical patent/KR100885813B1/en

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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
    • 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
    • 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
    • F16D55/2265—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 the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
    • F16D55/227—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 the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
    • 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
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0971—Resilient means interposed between pads and supporting members or other brake parts transmitting brake actuation force, e.g. elements interposed between brake piston and pad
    • 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

Abstract

A disk brake for the vehicles is provided to facilitate the braking control with protecting the drive motor by installing a buffer member between a pad and a nut material. A disk brake for the vehicles comprises the driving friction pad which is rubbed with the side of the disc rotating with the wheel of the vehicles and generates the braking power; the drive motor(50) for operating the driving friction pad; the reducer(60) for being connected to the axis of rotation of the drive motor and slowing down rotation; and power conversion device converting the rotational motion of reducer into the linear motion. The reducer is the planetary gear reduction mechanism.

Description

차량용 디스크 브레이크{DISK BRAKE FOR VEHICLE}Car Disc Brake {DISK BRAKE FOR VEHICLE}

도 1은 본 발명에 따른 차량용 디스크 브레이크의 분해 사시도이다.1 is an exploded perspective view of a disc brake for a vehicle according to the present invention.

도 2는 본 발명에 따른 차량용 디스크 브레이크의 제동 해제 상태를 보인 개략도이다. 2 is a schematic view showing a braking release state of a vehicular disk brake according to the present invention.

도 3은 본 발명에 따른 차량용 디스크 브레이크의 제동 상태를 보인 개략도이다. 3 is a schematic view showing a braking state of a disc brake for a vehicle according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10: 디스크 20a, 20b: 마찰패드10: disc 20a, 20b: friction pad

30: 캘리퍼하우징 31: 가이드로드30: Caliper Housing 31: Guide Rod

32: 핑거부 40: 캐리어32: finger portion 40: carrier

41: 가이드홀 50: 구동모터 41: guide hole 50: drive motor

51: 회전축 60: 감속기51: rotation axis 60: reducer

61: 스크류부 70 : 너트부재61: screw portion 70: nut member

80: 모터 브라켓 90: 완충부재80: motor bracket 90: buffer member

본 발명은 차량용 브레이크에 관한 것으로, 더욱 상세하게는 감속기에 의해 구동모터의 동력을 배력하여 마찰패드를 진퇴시키고 완충부재에 의해 제동 제어가 용이하게 되도록 한 디스크 브레이크에 관한 것이다. The present invention relates to a vehicle brake, and more particularly, to a disc brake that retracts a friction pad by powering a drive motor by a speed reducer and facilitates braking control by a shock absorbing member.

일반적으로 차량용 디스크 브레이크는 휠과 함께 회전하는 원판형상의 디스크 일부를 양측에서 마찰패드로 압박하여 제동력을 얻는 장치이다.In general, a disc brake for a vehicle is a device that obtains a braking force by pressing a portion of a disk-shaped disk that rotates with the wheel with a friction pad on both sides.

이러한 차량용 디스크 브레이크는 일반적으로 유압펌프에 의해 발생되는 유압에 의해 유압실린더가 작동하여 마찰패드를 작동시키는 유압식으로 구성된다.Such a disc brake for a vehicle is generally configured by a hydraulic cylinder to operate the friction pad by operating the hydraulic cylinder by the hydraulic pressure generated by the hydraulic pump.

그러나, 유압을 이용한 디스크 브레이크의 경우, 유압의 특성상 강력한 제동력을 발휘할 수 있다는 장점이 있으나 복잡한 유압회로를 구성하고 제동력을 더욱 향상시키기 위하여 추가적으로 브레이크 부스터를 장착해야 하는 등 복잡한 기구적 요소를 갖추어야 하며, 유압회로에 누유가 발생할 경우 제동력이 상실될 수 있는 치명적인 문제점을 가지고 있었다.However, in the case of the disc brake using hydraulic pressure, it has the advantage of being able to exert a strong braking force due to the characteristics of the hydraulic pressure, but it is necessary to have a complicated mechanical element, such as to construct a complicated hydraulic circuit and to install an additional brake booster to further improve the braking force. There was a fatal problem that the braking force could be lost when oil leakage occurred in the hydraulic circuit.

또한, 제어적인 면에 있어서도 차량에 전자제어시스템이 일반화되고 있는 추세에서 유압을 이용한 브레이크 시스템은 전자제어를 위한 전기적 신호를 제동에 반영하기 위하여 추가적인 액츄에이터를 장착하여야 하는 문제점이 있었다.In addition, in terms of control, a brake system using hydraulic pressure has a problem in that an additional actuator has to be mounted in order to reflect an electrical signal for braking in an electronic control system in a vehicle.

본 발명은 상술한 종래기술의 문제점을 해결하기 위한 것으로, 본 발명의 목적은 작은 용량의 구동모터의 회전력에 의해 마찰패드가 작동되도록 한 디스크 브레이크를 제공하는데 있다.The present invention is to solve the above-mentioned problems of the prior art, an object of the present invention is to provide a disk brake to operate the friction pad by the rotational force of a small capacity drive motor.

본 발명의 또 다른 목적은 제동과정에서 마찰패드로 전달되는 충격 및 진동이 구동모터에 전달되지 않도록 하고 제동 제어가 용이하게 이루어지도록 한 디스 크 브레이크를 제공하는 것이다. Still another object of the present invention is to provide a disk brake that prevents shock and vibration transmitted to the friction pad in the braking process from being transmitted to the driving motor and facilitates braking control.

이와 같은 목적을 달성하기 위한 본 발명에 따른 디스크 브레이크는, 차량의 휠과 함께 회전하는 디스크의 측면과 마찰하며 제동력을 발생시키는 가동 마찰패드와, 상기 가동 마찰패드를 구동하기 위한 구동모터와, 상기 구동모터의 회전축에 연결되어 회전을 감속하기 위한 감속기와, 상기 감속기와 상기 가동 마찰패드사이에 설치되어 상기 감속기로부터의 회전운동을 직선운동으로 변환하는 동력변환장치를 포함한다.Disc brake according to the present invention for achieving the above object is a friction pad that generates a braking force and friction with the side of the disk that rotates with the wheel of the vehicle, a drive motor for driving the movable friction pad, and It is connected to the rotary shaft of the drive motor for reducing the rotation, and a power converter is installed between the reducer and the movable friction pad and converts the rotational movement from the reducer to linear movement.

상기 감속기는 유성기어 감속기인 것을 특징으로 한다.The speed reducer is a planetary gear reducer.

상기 동력변환장치는 상기 감속기의 회전축과 연결되는 스크류부와, 상기 스크류부의 외주연에 결합되어 상기 스크류부의 회전운동에 따라 축방향으로 직선운동하는 너트부재를 포함하는 것을 특징으로 한다.The power converter includes a screw part connected to the rotating shaft of the reducer, and a nut member coupled to an outer circumference of the screw part to linearly move in the axial direction according to the rotational motion of the screw part.

상기 너트부와 상기 가동 마찰패드사이에는 완충부재가 설치되는 것을 특징으로 한다.A cushioning member is installed between the nut part and the movable friction pad.

이하에서는 본 발명의 바람직한 하나의 실시예를 도면을 참조하여 상세히 설명한다. Hereinafter, one preferred embodiment of the present invention will be described in detail with reference to the drawings.

본 발명에 따른 차량용 디스크 브레이크는 도 1, 2에 도시되어 있는 바와 같이 차량의 휠(미도시)과 함께 회전하는 원판형상의 디스크(10) 양측면에 마찰패드(20a, 20b)를 각각 마찰시켜 제동력을 얻는 장치로써, 내부 양측에 한 쌍의 마찰패 드(20a, 20b)가 서로 대향되게 배치되어 있는 캘리퍼하우징(30)과, 차량의 너클부(미도시)에 고정되어 캘리퍼하우징(30)이 너클부에 진퇴이동 가능하게 설치될 수 있게 하는 캐리어(40)를 포함한다. In the disc brake for a vehicle according to the present invention, as shown in Figs. 1 and 2, the braking force is generated by rubbing the friction pads 20a and 20b on both sides of the disc-shaped disc 10 that rotates together with the wheels (not shown) of the vehicle. As a device for obtaining a caliper housing 30, a pair of friction pads (20a, 20b) are arranged opposite to each other and the knuckle housing (not shown) of the vehicle is fixed to the caliper housing (30) And a carrier 40 that allows the knuckle portion to be installed to be moved forward and backward.

캘리퍼하우징(30)이 캐리어(40)에 진퇴이동 가능하게 설치될 수 있도록 하기 위하여 캘리퍼하우징(30)의 양측단에는 캐리어(40)에 진퇴이동 가능하게 설치되는 한 쌍의 가이드로드(31)가 스크류 등의 체결부재를 통해 고정되어 있으며, 캐리어(40)의 양측에는 가이드로드(31)가 진퇴이동가능하게 설치되는 가이드홀(41)이 각각 마련되어 있다. In order to allow the caliper housing 30 to be installed in the carrier 40 so that the carrier 40 can be moved forward and backward, a pair of guide rods 31 are installed in the carrier 40 so that the caliper housing 30 can be moved forward and backward. It is fixed through a fastening member such as a screw, and the guide hole 41 is provided on both sides of the carrier 40 so that the guide rod 31 can be moved forward and backward.

캘리퍼하우징(30)의 내부 일측에는 디스크(10)측을 향하고 있는 전면에 마찰패드(20a)가 설치되며, 캘리퍼하우징(30)의 내부 타측에는 다른 하나의 마찰패드(20b)가 설치되는 핑거부(32)가 구비되어 있다. 본 실시예에서는 편의상 두 마찰패드(20a, 20b) 중 너트부와 결합되어 너트부(60)와 함께 이동하는 마찰패드(20a)를 가동 마찰패드(20a)라 하며, 핑거부(32)에 설치되어 있는 마찰패드(20b)를 고정 마찰패드(20b)라 한다. A friction pad 20a is installed at a front side of the caliper housing 30 facing the disk 10 side, and a finger portion at which the other friction pad 20b is installed at the other side of the caliper housing 30. (32) is provided. In the present embodiment, the friction pad 20a, which is coupled to the nut part of the two friction pads 20a and 20b and moves together with the nut part 60, is referred to as a movable friction pad 20a and installed on the finger part 32. The friction pad 20b is referred to as a fixed friction pad 20b.

가동 마찰패드(20a)의 작동을 위하여 전동모터인 구동모터(50)가 캘리퍼 하우징(30)에 설치되며, 차량 전원의 전압인 12V 전원을 공급받아 작동된다. 구동모터(50)는 모터 브라켓(80)에 마운트되고, 모터브라켓(80)은 다시 캘리퍼 하우징(30)에 고정되어 구동모터(50)가 고정된다.In order to operate the movable friction pad 20a, a driving motor 50, which is an electric motor, is installed in the caliper housing 30, and is operated by receiving 12V power, which is a voltage of a vehicle power source. The drive motor 50 is mounted on the motor bracket 80, and the motor bracket 80 is fixed to the caliper housing 30 again to fix the drive motor 50.

구동모터(50)의 회전축(51)은 고속회전이 가능하나 낮은 토크를 출력하고 이를 바로 제동을 위한 가동 마찰패드(20a)의 구동에 사용하기에는 부적절하므로, 구동모 터(50)의 회전축(51)에 감속기(60)를 연결하여 제동력 확보를 위하여 배력한다.The rotating shaft 51 of the drive motor 50 can rotate at a high speed, but outputs a low torque and is not suitable for use in driving the movable friction pad 20a for braking, and thus, the rotating shaft 51 of the driving motor 50. The reducer 60 is connected to the power supply to secure the braking force.

감속기(60)로써는 다양한 종류가 적용될 수 있으나 실시예에서는 축방향 두께를 최소화할 수 있는 유성기어 감속기가 적용되어 있다.Various types can be used as the reducer 60, but in the embodiment, a planetary gear reducer capable of minimizing the axial thickness is applied.

구동모터(50)로부터 발생해 감속기(60)에 의해 감속됨과 동시에 배력된 회전운동은 동력변환장치를 통해 직선운동으로 변환된다.The rotary motion generated from the driving motor 50 and decelerated by the speed reducer 60 is converted into linear motion through the power converter.

상기 동력변환장치는 상기 감속기(60)의 회전축과 연결되는 스크류부(61)와, 상기 스크류부(61)의 외주연에 결합되어 상기 스크류부(60)의 회전운동에 따라 축방향으로 직선운동하는 너트부재(70)를 포함한다.The power converter is coupled to the screw portion 61 and the outer periphery of the screw portion 61 is connected to the rotary shaft of the reducer 60, linear movement in the axial direction according to the rotational movement of the screw portion 60 It comprises a nut member (70).

이를 위해 감속기(60)의 회전축에는 스크류형태의 수나사산이 가공되어 있고 너트부재(70)에는 상기 수나사산에 대응되는 암나사산이 가공되어 있다.To this end, a screw-type male thread is processed on the rotation shaft of the reducer 60, and a female thread corresponding to the male thread is processed on the nut member 70.

이때 나사산의 피치에 따라 회전축 1회전당 변위가 정해지고 이는 회전운동이 직선운동으로 변환되는 과정에서 2차적인 감속이 이루어지도록 한다.At this time, the displacement per rotation axis is determined according to the pitch of the screw thread, which causes the secondary deceleration in the process of converting the rotation motion into a linear motion.

너트부재(70)는 암나사산이 형성된 너트부(70a)와, 너트부(70a)에 의해 변환된 직선운동을 가동 마찰패드(20a)에 전달하기 위한 전달부(70b)를 포함하여 구성된다.The nut member 70 includes a nut part 70a having a female thread, and a transmission part 70b for transmitting the linear motion converted by the nut part 70a to the movable friction pad 20a.

또한, 상기 너트부재(70)의 전달부(70b)와 가동 마찰패드(20a)의 후면 사이에는 완충부재(90)가 설치된다.In addition, a buffer member 90 is installed between the transfer portion 70b of the nut member 70 and the rear surface of the movable friction pad 20a.

이와 같은 구조하에서 구동모터(50)에서 발생된 회전력이 배력장치인 감속기(60)를 거치면서 충분히 배력되어 제동력을 확보할 수 있지만, 이러한 구동모터(50)를 이용하여 가동 마찰패드(20a)를 작동시키면 제동력을 조절하기 위한 변위가 작아 제동력의 제어가 쉽지 않을 수 있고 이러한 제동력의 제어를 용이하게 하기 위하여 상기 완충부재(90)를 너트부재(70)와 가동 마찰패드(20a)사이에 설치하는 것이다.Under such a structure, the rotational force generated by the driving motor 50 is sufficiently increased while passing through the reduction gear 60, which is the boosting device, to secure the braking force. However, the driving friction pad 20a is moved using the driving motor 50. When operated, the displacement for adjusting the braking force may be small, and thus the control of the braking force may not be easy. In order to facilitate the control of the braking force, the buffer member 90 may be installed between the nut member 70 and the movable friction pad 20a. will be.

상기 완충부재(90)는 변위조절에 의한 제동제어를 용이하게 함과 동시에 제동시 가동 마찰패드(20a)로부터 전달되는 충격 또는 진동이 구동모터(50) 측으로 바로 전달되지 않도록 완충하는 역할을 한다.The shock absorbing member 90 facilitates the braking control by the displacement control and at the same time serves to cushion the shock or vibration transmitted from the movable friction pad 20a during braking so as not to be directly transmitted to the driving motor 50.

이러한 완충부재(90)는 탄성재질로 이루어지거나 탄성재질과 비탄성재질의 복합적으로 구성되어 이루어질 수 있다.The buffer member 90 may be made of an elastic material or may be made of a composite of an elastic material and an inelastic material.

또한, 가동 마찰패드(20a), 너트부재(70) 및 완충부재(90)는 캘리퍼 하우징(30) 내에 진퇴가능하게 설치되어 직선운동가능하도록 안내되며, 따라서 구동모터(50)의 회전축이 회전하더라도 너트부재(70)를 포함하여 완충부재(90)와 가동 마찰패드(20a)도 따라 회전하지 않게된다.In addition, the movable friction pad 20a, the nut member 70, and the shock absorbing member 90 are installed in the caliper housing 30 so as to be retractable and guided so as to linearly move. Thus, even if the rotating shaft of the drive motor 50 rotates, Including the nut member 70, the buffer member 90 and the movable friction pad 20a are also prevented from rotating along.

다음은 이러한 구조로 이루어진 본 발명의 디스크 브레이크의 동작을 간단하게 살펴본다.The following briefly looks at the operation of the disc brake of the present invention having such a structure.

먼저, 도 2 및 3를 참조하면 제동동작의 시작은 구동모터(50)가 작동됨에 의해 이루어지며, 구동모터(50)가 작동됨에 따라 회전축(51)의 동력은 감속기(60)로 전달되어 저속으로 감속되면서 배력된다.First, referring to FIGS. 2 and 3, the braking operation is started by driving the driving motor 50. As the driving motor 50 is operated, the power of the rotating shaft 51 is transmitted to the reduction gear 60 so that the low speed is reduced. It is retracted while decelerating to.

이와 같이 배력된 회전력은 감속기(60)의 회전축을 통해 너트부재(70)의 너트부(70a)에서 직선운동으로 전환되어 너트부재(70), 완충부재(90)를 따라 가동 마찰패드(20a)를 디스크(10) 쪽으로 가압하여 제동이 이루어지게 된다.The rotating force thus boosted is converted into a linear motion from the nut part 70a of the nut member 70 through the rotation shaft of the reducer 60 to move the friction pad 20a along the nut member 70 and the buffer member 90. Is pressed against the disk 10 to achieve braking.

반대로 제동력이 해제되기 위하여는 구동모터(50)의 회전축(51)이 제동과정과 반대로 역회전하도록 제어하면 너트부재(70)가 구동모터(50) 쪽으로 후퇴하면서 완충부 재(90)가 가동 마찰패드(20a)를 후퇴시켜 가동 마찰패드(20a)와 디스크(10) 사이의 마찰상태가 해소됨으로써 제동력 해제가 이루어진다.On the contrary, in order to release the braking force, if the rotating shaft 51 of the driving motor 50 is controlled to rotate in the opposite direction to the braking process, the nut member 70 retreats toward the driving motor 50 while the shock absorbing material 90 moves friction. By retracting the pad 20a, the frictional state between the movable friction pad 20a and the disk 10 is eliminated, thereby releasing the braking force.

한편, 도시된 실시예에 의하면, 하나의 구동모터(50)를 통해 제동동작과 제동해제동작이 이루어지도록 구성된 경우이나, 이 두 동작을 일방향으로만 작동되는 두 개의 구동모터(50)를 통해서도 구성할 수 있으며, 상기 완충부재(90)는 실시예에서와 같이 코일 스프링이외에 판스프링이나 기타 다른 소재의 탄성부재로도 구성가능하다.On the other hand, according to the illustrated embodiment, the braking operation and the braking releasing operation is configured to be performed through one drive motor 50, or these two operations are also configured through two drive motors 50 that are operated in only one direction. The shock absorbing member 90 may be formed of an elastic member of a leaf spring or other material in addition to the coil spring as in the embodiment.

본 발명에 따른 디스크 브레이크는 감속기를 이용하여 구동모터의 동력을 배력시켜 제동 및 제동해제동작에 사용하여 쐐기부재 등 없이도 간단한 구조로 전기구동식 디스크 브레이크를 구성할 수 있다. Disc brake according to the present invention can be used in the braking and releasing operation by boosting the power of the drive motor using the reducer, it is possible to configure the electric drive disc brake with a simple structure without the wedge member.

또한, 패드와 너트부재 사이에 완충부재가 설치됨으로써 구동모터를 보호함과 동시에 변위가 작은 전기구동식 브레이크의 특성을 보완하여 제동제어가 용이하도록 하는 효과가 있다.In addition, the shock absorbing member is installed between the pad and the nut member to protect the driving motor and to compensate for the characteristics of the electric drive brake with small displacement, thereby facilitating braking control.

Claims (4)

차량의 휠과 함께 회전하는 디스크의 측면과 마찰하며 제동력을 발생시키는 가동 마찰패드와, 상기 가동 마찰패드를 구동하기 위한 구동모터와, 상기 구동모터의 회전축에 연결되어 회전을 감속하기 위한 감속기와, 상기 감속기와 상기 가동 마찰패드사이에 설치되어 상기 감속기로부터의 회전운동을 직선운동으로 변환하는 동력변환장치를 포함하는 디스크 브레이크.A movable friction pad for friction with the side of the disk rotating together with the wheel of the vehicle and generating a braking force, a drive motor for driving the movable friction pad, a reducer connected to a rotation shaft of the drive motor to reduce rotation; And a power converter installed between the speed reducer and the movable friction pad to convert rotational motion from the speed reducer into linear motion. 제 1 항에 있어서, The method of claim 1, 상기 감속기는 유성기어 감속기인 것을 특징으로 하는 디스크 브레이크.The speed reducer is a disk brake, characterized in that the planetary gear reducer. 제 1 항에 있어서, The method of claim 1, 상기 동력변환장치는 상기 감속기의 회전축과 연결되는 스크류부와, 상기 스크류부의 외주연에 결합되어 상기 스크류부의 회전운동에 따라 축방향으로 직선운동하는 너트부재를 포함하는 것을 특징으로 하는 디스크 브레이크.The power converter includes a screw portion connected to the rotating shaft of the reducer, and a nut member coupled to the outer periphery of the screw portion to linearly move in the axial direction according to the rotational movement of the screw portion. 제 1 항에 있어서, The method of claim 1, 상기 너트부와 상기 가동 마찰패드사이에는 완충부재가 설치되는 것을 특징으로 하는 디스크 브레이크. And a cushioning member is installed between the nut portion and the movable friction pad.
KR1020070072262A 2007-07-19 2007-07-19 Disk brake for vehicle KR100885813B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018517108A (en) * 2015-06-09 2018-06-28 フェデラル−モーグル ブレムスベラーク ゲーエムベーハー Elastic installation of friction lining elements in the brake lining
CN113309798A (en) * 2020-02-26 2021-08-27 上海凌林增压器有限公司 Mechanical braking structure for industrial brake

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020078018A (en) * 2001-04-04 2002-10-18 주식회사 만도 Disk brake
KR100554542B1 (en) * 2004-05-17 2006-03-03 현대모비스 주식회사 transmission system for brake

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018517108A (en) * 2015-06-09 2018-06-28 フェデラル−モーグル ブレムスベラーク ゲーエムベーハー Elastic installation of friction lining elements in the brake lining
CN113309798A (en) * 2020-02-26 2021-08-27 上海凌林增压器有限公司 Mechanical braking structure for industrial brake
CN113309798B (en) * 2020-02-26 2023-09-01 杭州创博机械设备有限公司 Mechanical braking structure for industrial brake

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