CN107013614B - 电动卡钳式制动器 - Google Patents

电动卡钳式制动器 Download PDF

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CN107013614B
CN107013614B CN201610842996.XA CN201610842996A CN107013614B CN 107013614 B CN107013614 B CN 107013614B CN 201610842996 A CN201610842996 A CN 201610842996A CN 107013614 B CN107013614 B CN 107013614B
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piston
noggin piece
cylinder body
main shaft
rotation
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CN107013614A (zh
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孙宗九
孔昤纁
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HL Mando Corp
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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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • 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
    • 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
    • F16D55/2262—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 open sliding surfaces, e.g. grooves
    • 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
    • F16D65/183—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 with force-transmitting members arranged side by side acting on a spot type force-applying member
    • 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
    • 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
    • F16D2125/02—Fluid-pressure mechanisms
    • 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
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/06—Pistons
    • 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

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

Abstract

本发明公开了一种电动卡钳式制动器。电动卡钳式制动器包括：承载部，其包括被安装成前后可移动的一对垫板；卡钳壳体，其被配置成被安装成在承载部上可滑动并且具有活塞由于制动液压压力前后可移动的缸体，在缸体中活塞的内部被挖掘成杯的形式；动力转换单元，其包括被安装成通过缸体的后部并且由于从致动器传递的旋转力而旋转的主轴构件以及被螺纹联接至主轴构件、设置在活塞中、根据主轴构件的旋转前后移动、加压活塞并释放加压的螺母构件；和填充构件，其被配置成以限制填充构件的旋转的方式设置在活塞中，填充构件被联联接至螺母构件。

Description

电动卡钳式制动器
相关申请的交叉引用
本申请要求于2015年9月22日向韩国知识产权局提交的申请号为2015-0133593的韩国专利申请的权益，其公开内容通过引用并入本文中。
技术领域
本发明的实施例涉及一种电动卡钳式制动器(electric caliper brake)，更具体地涉及一种能够通过在制动操作期间减少需要的制动油量来提高踏板感觉的电动卡钳式制动器。
背景技术
一般而言，除传统的液压盘式制动器之外，电动卡钳式制动器采用通过电操作的致动器。
注册号为10-1220294的韩国专利公开一种电子盘式制动器系统(在下文中被称为“电动卡钳式制动器”的示例。根据公开的文献，电动卡钳式制动器包括：盘，其与车辆的车轮一起旋转；承载部，其包括被安装以可前后移动以便加压盘的一对垫板；卡钳壳体，其被安装成在承载部上可滑动并且具有缸体，在缸体中活塞被安装成由于制动液压压力前后可移动；主轴单元，其加压活塞；以及马达和减速器，其将旋转力传递至主轴单元。
这种电动卡钳式制动器被配置成通过基于制动液压压力加压活塞来执行制动操作或者通过使用主轴单元加压活塞来执行停车功能，其中主轴单元由于从马达传递的旋转力而将旋转运动转换成直线运动。
在具有上述构造的电动卡钳式制动器中，制动踏板的冲程(踏板移动距离)根据在制动操作期间将被传递至缸体中的制动油的需要的量而变化。即，制动油的所需量必须减少使得制动感觉在制动操作期间得到提高。
然而，随着空间在向其供给制动液压压力的缸体内即在活塞内形成，制动油的所需量增加使得制动感觉可能会被降低。
[现有技术文献]
[专利文献]
(专利文献)2013年1月3日的注册号为10-1220294的韩国专利(万都公司)
发明内容
因此，本发明的方面是提供一种提供用于填充活塞的内部的填充构件使得制动油的需要的量可被减少并因此制动感觉可被提高的电动卡钳式制动器。
发明的附加方面将在随后的说明书中部分的阐述且部分从说明书中将是显而易见的或可以通过发明的实践而获知。
根据本公开的一方面，电动卡钳式制动器包括：承载部，其包括被安装成前后可移动的一对垫板；卡钳壳体，其被配置成安装成在承载部上可滑动并且具有在其中活塞由于制动液压压力前后可移动的缸体，其中活塞的内部被挖掘成杯的形式；动力转换单元，其包括被安装成通过缸体的后部并且由于从致动器传递的旋转力而旋转的主轴构件以及被螺纹联接至主轴构件、设置在活塞中、根据主轴构件的旋转前后移动、加压活塞并且释放加压的螺母(nut)构件；以及填充构件，其被配置成以限制填充构件的旋转的方式设置在活塞中，填充构件被联接至螺母构件。
填充构件具有中心是中空的中空部分，并且填充构件被安装在活塞中并联结至活塞。
中空部分具有多边形形状，并且螺母构件的形状与中空部分的形状相对应。
填充构件包括在填充构件的外周表面上具有至少一个平面的防旋转表面，具有与形成在填充构件的外周表面上的防旋转表面相对应的平面的至少一个防旋转爪部形成在活塞的内周表面上。
附图说明
从下述结合附图的实施例的描述中，发明的这些方面和/或其它方面将变得显而易见且更容易地理解，其中：
图1是根据本发明的实施例的电动卡钳式制动器的示意截面图；
图2是设置在电动卡钳式制动器中的活塞、填充构件和动力转换单元的联接状态的分解透视图；以及
图3是按压配合到图2所示的活塞的填充构件的分解透视图。
具体实施方式
在下文中，将参照示出本发明的示例性实施例的附图详细地描述本发明。提供下面的实施例以为本领域的技术人员彻底地传递本发明的精神。本发明不局限于本文阐述的实施例，但是可以不同的形式实施。在附图中，为了发明清楚起见，省略对说明书无关部分的说明，为了理解，元件的尺寸可被稍微夸大。
图1是根据本发明的实施例的电动卡钳式制动器的示意截面图，图2是设置在电动卡钳式制动器中的活塞、填充构件和动力转换单元的联接状态的分解透视图。
参照图1和图2，根据本发明的实施例的电动卡钳式制动器100包括：盘D，其与车辆的车轮(未显示)一起旋转；承载部120，其包括被安装成前后可移动以便加压盘D的一对垫板111和112，；卡钳壳体130，其被安装成在承载部120上可滑动并且具有活塞在其中被安装成由于制动液压压力前后可移动的缸体131；动力转换单元150，其加压活塞140；致动器160，其向动力转换单元150传递旋转力；和填充构件170，其以限制填充构件170的旋转的方式设置在活塞140中。
一对垫板111和112被分为设置成接触活塞140的内垫板111和设置成接触稍后将描述的卡钳壳体130的指部部分132的外垫板112。一对垫板111和112被安装在固定至车辆主体的承载部120上以在盘D的两侧方向上前后可移动。另外，摩擦垫113被附接至面向盘D的垫板111和112中的每个的一个表面。
卡钳壳体130被安装成在承载部120上可滑动。更详细地，卡钳壳体130包括：缸体131，其被安装在卡钳壳体130的后部并且包括设置在缸体131中以前后可移动的动力转换单元150和活塞140；以及指部部分132，其被设置在卡钳壳体130的前面并且形成为在向下方向上弯曲以便操作外垫板112。在这种情况下，指部部分132和缸体131一体形成。
活塞140具有其内部挖掘成杯的形式的圆柱形形状，并且可滑动地插入缸体131中。在这种情况下，至少一个防旋转爪部145形成在活塞140的内周表面上。下面将再次描述防旋转爪部145。活塞140由于接收致动器160的旋转力的动力转换单元150的轴向力而朝着盘D加压内垫板111。因此，当用于制动的液压压力施加于缸体131中时，活塞140在内垫板111的方向上向前移动以加压内垫板111，卡钳壳体130由于反作用力在与活塞140相反的方向上操作，指部部分132朝着盘D加压外垫板112使得制动操作可被执行。
同时，将制动油引入缸体131中的油口139形成在卡钳壳体130中使得用于制动的液压压力可被施加至缸体131中，用于防止油泄露的密封构件134被设置在活塞140的外表面和缸体131的内表面之间。当释放制动操作时，密封构件134用于将活塞140返回到它的原始位置，同时防止引入至缸体131中的制动油渗漏。
动力转换单元150从包括马达164和减速器162的致动器160接收旋转力并朝着内垫板111加压活塞140。在这种情况下，减速器162是已知技术，因此将省略其描述。动力转换单元150包括被安装在活塞140中并且接触活塞140的螺母构件154以及螺纹联接至螺母构件154的主轴构件152。
主轴构件152以主轴构件152的一侧通过卡钳壳体130即缸体131且主轴构件152的另一侧设置在活塞140中的方式被可旋转地安装。在这种情况下，通过缸体131的主轴构件152的一侧被连接至减速器162并且接收马达164的旋转力，并且外螺纹形成在主轴构件152的另一侧的外周表面上。为了支撑主轴构件152，第一轴承135和第二轴承136被安装在缸体131中以彼此间隔开。这里，当螺母构件154在制动操作期间前后移动时，第二轴承136是接收通过主轴构件152传递的反作用力的推力轴承(thrust bearing)。
通孔153在纵长方向上形成在螺母构件154的中心使得螺母构件154可被螺纹联接至主轴构件152，并且内螺纹形成在通孔153中。因此，螺母构件154根据主轴构件152的旋转方向前后移动、加压活塞140并且释放加压。螺母构件154必须被设置成处于限制旋转的状态以便根据主轴构件152的旋转做直线运动。因此，根据本发明的实施例，填充构件170被设置在活塞140中并且用于限制螺母构件154的旋转。
更详细地，填充构件170以限制旋转的状态被设置在活塞140中并且被联接至螺母构件154。填充构件170具有其中心是中空的中空部分174，并且如图3所示被配合和联接至活塞140中。在这种情况下，填充构件170包括防旋转表面175，其被设置在填充构件170的外周表面上并且具有通过其限制防旋转表面175旋转的至少一个平面。即，防旋转表面175的旋转通过形成在活塞140的内周表面上的防旋转爪部145限制。因此，形成在活塞140上的防旋转爪部145形成为具有与在填充构件170的外周表面上形成的防旋转表面175相对应的平面。如图所示，填充构件170具有六边形形状，两个防旋转爪部145形成在活塞140的内周表面上。然而，本发明的实施例并不限于此，如果填充构件170的旋转是可限制的，则形成在填充构件170的外周表面上的防旋转表面175的数量和活塞140的防旋转爪部145的数量可增加或减少。
同时，形成在填充构件170的中心中的中空部分174具有多边形形状。因此，螺母构件154具有与中空部分174的形状相对应的形状。如图所示，中空部分174和螺母构件154中的每个具有六边形形状，但是也可以具有五边形、矩形或者椭圆形状。因此，螺母构件154与中空部分174间隔开预定的距离并被插入并联接至中空部分174使得螺母构件154的旋转受到限制，因此螺母构件154根据主轴构件152的旋转做直线运动。
如上所述，当填充构件170限制螺母构件154的旋转并且被配合且联接至活塞140时，填充构件170填充活塞140的内部空间。因此，填充构件170和活塞140由于从油口139引入的制动油被加压并且朝着盘D加压活塞140。即，因为活塞140的内部被填充构件170填充，所以与相关技术相比，引入缸体131的制动油的所需量减少，从而可改善踏板感觉。
在根据本发明的实施例的电动卡钳式制动器中，设置用于填充活塞的内部的填充构件使得制动油的所需量可被减少，因此制动感觉可通过增加踏板力得到改善。
同时，填充构件被配合并联接至活塞中使得可获得容易装配的性能。
尽管已经示出并描述本发明的一些实施例，但是本领域的技术人员将理解的是，在不脱离权利要求及其等价物所限定的发明的原理和精神的范围的情况下，可进行改变。

Claims (4)

1.一种电动卡钳式制动器，其包括：
承载部，其包括安装成前后可移动的一对垫板；
卡钳壳体，其被配置成被安装成在所述承载部上可滑动并且具有由于制动液压压力前后可移动的缸体，在所述缸体中，其活塞的内部被挖掘成杯的形式；
动力转换单元，其包括被安装成通过所述缸体的后部并且由于从致动器传递的旋转力而旋转的主轴构件以及被螺纹联接至所述主轴构件、设置在所述活塞中、根据所述主轴构件的旋转前后移动、加压所述活塞并且释放所述加压的螺母构件；和
填充构件，其被配置成以限制所述填充构件的旋转的方式设置在所述活塞中，所述填充构件被联接至所述螺母构件。
2.根据权利要求1所述的电动卡钳式制动器，其中所述填充构件具有其中心是中空的中空部分，并且所述填充构件被配合和联接至所述活塞中。
3.根据权利要求2所述的电动卡钳式制动器，其中所述中空部分具有多边形形状，并且所述螺母构件具有与所述中空部分的形状相对应的形状。
4.根据权利要求2所述的电动卡钳式制动器，其中所述填充构件包括具有在所述填充构件的外周表面上的至少一个平面的防旋转表面，具有与形成在所述填充构件的外周表面上的防旋转表面相对应的平面的至少一个防旋转爪部形成在所述活塞的内周表面上。
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