CN114396444A - 一种防急刹式液压盘式制动器 - Google Patents

一种防急刹式液压盘式制动器 Download PDF

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CN114396444A
CN114396444A CN202111630590.2A CN202111630590A CN114396444A CN 114396444 A CN114396444 A CN 114396444A CN 202111630590 A CN202111630590 A CN 202111630590A CN 114396444 A CN114396444 A CN 114396444A
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brake
oil
floating plate
cavity
sleeve
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CN114396444B (zh
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张海波
周振宇
徐江涛
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Anhui Oulibao Automobile Technology Co ltd
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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
    • 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
    • B60T13/10—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 fluid assistance, drive, or release
    • B60T13/12—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 fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—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 fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/148—Arrangements for pressure supply
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L3/00—Brake-actuating mechanisms; Arrangements thereof
    • B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
    • B62L3/023—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever acting on fluid pressure systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/008—Reduction of noise or vibration
    • 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
    • F16D65/0973—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces
    • F16D65/0974—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis
    • F16D65/0975—Springs made from wire
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/027—Throttle passages
    • F16L55/02709—Throttle passages in the form of perforated plates
    • F16L55/02718—Throttle passages in the form of perforated plates placed transversely
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids
    • F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
    • F16L55/05—Buffers therefor
    • 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
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0016—Brake calipers
    • 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
    • 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
    • F16D2125/08—Seals, e.g. piston seals
    • 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
    • F16D2125/16—Devices for bleeding or filling
    • 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
    • F16D2127/00—Auxiliary mechanisms
    • F16D2127/008—Trigger 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
    • F16D2129/00—Type of operation source for auxiliary mechanisms
    • F16D2129/02—Fluid-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
    • F16D2131/00—Overall arrangement of the actuators or their elements, e.g. modular construction

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  • General Engineering & Computer Science (AREA)
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Abstract

一种防急刹式液压盘式制动器，包括：手刹、制动单元、联动油管；当制动力度较大时，联动油管内部的液压油流速增大，流速较大的液压有在经过缓冲节点时，液压油冲击浮动板，使得浮动板下部的缓冲弹簧收缩，浮动板下移，随着浮动板下移，浮动板接触套筒，进而使得浮动板封闭套筒与缓冲节点的内部空腔之间的间隙，此时液压油仅能通过支撑板中部的阻尼孔流出，进而极大的降低了液压油的流速，而当液压油流速变慢时，受缓冲弹簧作用，浮动板与套筒再次脱离，液压油又能够保持正常流动，通过限制联动油管内部液压油的流速，避免车辆在行驶时出现急刹的情况，可适用于两轮车上的刹车制动。

Description

一种防急刹式液压盘式制动器
技术领域
本发明涉及液压制动器技术领域，具体涉及一种防急刹式液压盘式制动器。
背景技术
液压制动器，制动器就是所谓的刹车，而液压制动器就是利用液压作为驱动力来控制刹车器进行工作的刹车器件。是使机械中的运动件停止或减速的机械零件。俗称刹车、闸。制动器主要由制架、制动件和操纵装置等组成。
液压制动器组成构件中，联动油管作为液压油输送元件，需要具有耐高压、抗冲击以及耐磨等特性，车辆在行驶时，出现急刹时，联动油管内部液压油流速增加，为避免车辆急刹，四轮汽车上会设置ABS防抱死刹车系统，而对于两轮车来说，就无法安装防抱死系统，在刹车急刹的情况下极易造成安全隐患。
发明内容
本发明所要克服现有技术中的不足，目的是提供一种防急刹式液压盘式制动器。
本发明所要解决的技术问题采用以下的技术方案来实现：
一种防急刹式液压盘式制动器，包括：
手刹、制动单元、联动油管；
所述手刹上设有驱动油缸，所述驱动油缸与制动单元之间通过联动油管连接；所述联动油管包括管体、缓冲节点；
所述缓冲节点连接在管体上，所述缓冲节点内部设有空腔，空腔底部安装有支撑导柱，所述支撑导柱上固定有支撑板，所述支撑板上固定有套筒，所述空腔内部滑动安装有浮动板，所述浮动板与支撑板之间设有缓冲弹簧，所述浮动板中部设有穿孔，所述浮动板在空腔中移动时，套筒可插入至穿孔中，支撑板中部开有阻尼孔，所述缓冲节点的内部空腔上部的管体与手刹连接，缓冲节点的内部空腔下部的管体与制动单元连接。
进一步的，所述缓冲节点包括缸套、外橡胶层，所述缸套两端分别安装有连接端盖，所述支撑导柱固定在其中一个连接端盖上，所述外橡胶层环套在缸套外部，所述外橡胶层内嵌有钢丝网。
进一步的，所述管体外部环套有防护弹簧。
进一步的，所述穿孔内侧嵌有内密封胶圈，所述内密封胶圈与套筒为过盈配合。
进一步的，所述浮动板外圈环套有外密封胶圈，所述外密封胶圈与缸套之间为过盈配合。
进一步的，所述手刹上安装有显示油柱，所述显示油柱内部为空心结构，所述显示油柱上端通过螺纹连接有上盖，所述上盖上通过螺纹连接有顶压杆，所述顶压杆下端固定有活塞，所述活塞位于显示油柱内部，所述顶压杆上端固定有转把，所述转把与上盖之间设有挤压弹簧，所述显示油柱与联动油管之间设有单向阀，所述单向阀使得显示油柱中的液压油单向流入至联动油管中。
进一步的，所述制动单元包括制动夹钳、制动油腔、制动板，所述制动油腔设置在制动夹钳中，所述制动油腔内部设有制动塞，所述制动塞端头与制动油腔之间连接有复位弹簧，所述制动板固定在制动塞上。
本发明的有益效果是：
本发明结构简单，当需要刹车制动时，通过按压手刹，手刹上的驱动油缸注压，进而将液压有经联动油管注入至制动单元，完成刹车操作，当制动力度较大时，联动油管内部的液压油流速增大，流速较大的液压有在经过缓冲节点时，液压油冲击浮动板，使得浮动板下部的缓冲弹簧收缩，浮动板下移，随着浮动板下移，浮动板接触套筒，进而使得浮动板封闭套筒与缓冲节点的内部空腔之间的间隙，此时液压油仅能通过支撑板中部的阻尼孔流出，进而极大的降低了液压油的流速，而当液压油流速变慢时，受缓冲弹簧作用，浮动板与套筒再次脱离，液压油又能够保持正常流动，通过限制联动油管内部液压油的流速，避免车辆在行驶时出现急刹的情况，可适用于两轮车上的刹车制动。
附图说明
图1为本发明的结构图；
图2为本发明的缓冲节点结构图；
图3为本发明的手刹结构图；
图4为本发明的显示油柱结构图；
图5为本发明的制动单元结构图；
图中：1、手刹；2、制动单元；3、联动油管；12、驱动油缸；21、管体；22、缓冲节点；23、支撑导柱；24、支撑板；25、套筒；26、浮动板；27、缓冲弹簧；28、穿孔；29、阻尼孔；31、缸套；32、外橡胶层；33、连接端盖；34、钢丝网；41、防护弹簧；42、内密封胶圈；43、外密封胶圈；44、显示油柱；45、上盖；46、顶压杆；47、活塞；48、转把；49、挤压弹簧；50、单向阀；51、制动夹钳；52、制动油腔；53、制动板；54、制动塞；55、复位弹簧。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体图示，进一步阐述本发明。
实施例1
如图1-2所示，一种防急刹式液压盘式制动器，包括：
手刹1、制动单元2、联动油管3；
手刹1上设有驱动油缸12，驱动油缸12与制动单元2之间通过联动油管3连接；联动油管3包括管体21、缓冲节点22；
缓冲节点22连接在管体21上，缓冲节点22内部设有空腔，空腔底部安装有支撑导柱23，支撑导柱23上固定有支撑板24，支撑板24上固定有套筒25，空腔内部滑动安装有浮动板26，浮动板26与支撑板24之间设有缓冲弹簧27，浮动板26中部设有穿孔28，浮动板26在空腔中移动时，套筒25可插入至穿孔28中，支撑板24中部开有阻尼孔29，缓冲节点22的内部空腔上部的管体21与手刹1连接，缓冲节点22的内部空腔下部的管体21与制动单元2连接。
一种防急刹式液压盘式制动器，工作原理：
当需要刹车制动时，通过按压手刹1，手刹1上的驱动油缸12注压，进而将液压有经联动油管3注入至制动单元2，完成刹车操作，当制动力度较大时，联动油管3内部的液压油流速增大，流速较大的液压有在经过缓冲节点22时，液压油冲击浮动板26，使得浮动板26下部的缓冲弹簧27收缩，浮动板26下移，随着浮动板26下移，浮动板26接触套筒25，进而使得浮动板26封闭套筒25与缓冲节点22的内部空腔之间的间隙，此时液压油仅能通过支撑板24中部的阻尼孔29流出，进而极大的降低了液压油的流速，而当液压油流速变慢时，受缓冲弹簧27作用，浮动板26与套筒25再次脱离，液压油又能够保持正常流动，通过限制联动油管3内部液压油的流速，避免车辆在行驶时出现急刹的情况，可适用于两轮车上的刹车制动。
实施例2
在实施例1的基础上，如图1-5所示，缓冲节点22包括缸套31、外橡胶层32，缸套31两端分别安装有连接端盖33，支撑导柱23固定在其中一个连接端盖33上，外橡胶层32环套在缸套31外部，外橡胶层32内嵌有钢丝网34。
管体21外部环套有防护弹簧41。
穿孔28内侧嵌有内密封胶圈42，内密封胶圈42与套筒25为过盈配合。
浮动板26外圈环套有外密封胶圈43，外密封胶圈43与缸套31之间为过盈配合。
手刹1上安装有显示油柱44，显示油柱44内部为空心结构，显示油柱44上端通过螺纹连接有上盖45，上盖45上通过螺纹连接有顶压杆46，顶压杆46下端固定有活塞47，活塞47位于显示油柱44内部，顶压杆46上端固定有转把48，转把48与上盖45之间设有挤压弹簧49，显示油柱44与联动油管3之间单向阀50，单向阀50使得显示油柱44中的液压油单向流入至联动油管3中。当需要对联动油管3中进行注油时，通过拧开上盖45将液压油注入至显示油柱44中，再拧上上盖45，转动顶压杆46挤压活塞47，可将显示油柱44中的液压油注入至联动油管3中，以完成对联动油管3内部液压油的补充。
制动单元2包括制动夹钳51、制动油腔52、制动板53，制动油腔52设置在制动夹钳51中，制动油腔52内部设有制动塞54，制动塞54端头与制动油腔52之间连接有复位弹簧55，制动板53固定在制动塞54上。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (7)

1.一种防急刹式液压盘式制动器，其特征在于，包括：
手刹、制动单元、联动油管；
所述手刹上设有驱动油缸，所述驱动油缸与制动单元之间通过联动油管连接；所述联动油管包括管体、缓冲节点；
所述缓冲节点连接在管体上，所述缓冲节点内部设有空腔，空腔底部安装有支撑导柱，所述支撑导柱上固定有支撑板，所述支撑板上固定有套筒，所述空腔内部滑动安装有浮动板，所述浮动板与支撑板之间设有缓冲弹簧，所述浮动板中部设有穿孔，所述浮动板在空腔中移动时，套筒可插入至穿孔中，支撑板中部开有阻尼孔，所述缓冲节点的内部空腔上部的管体与手刹连接，缓冲节点的内部空腔下部的管体与制动单元连接。
2.根据权利要求1所述的一种防急刹式液压盘式制动器，其特征在于，所述缓冲节点包括缸套、外橡胶层，所述缸套两端分别安装有连接端盖，所述支撑导柱固定在其中一个连接端盖上，所述外橡胶层环套在缸套外部，所述外橡胶层内嵌有钢丝网。
3.根据权利要求1所述的一种防急刹式液压盘式制动器，其特征在于，所述管体外部环套有防护弹簧。
4.根据权利要求1所述的一种防急刹式液压盘式制动器，其特征在于，所述穿孔内侧嵌有内密封胶圈，所述内密封胶圈与套筒为过盈配合。
5.根据权利要求2所述的一种防急刹式液压盘式制动器，其特征在于，所述浮动板外圈环套有外密封胶圈，所述外密封胶圈与缸套之间为过盈配合。
6.根据权利要求1所述的一种防急刹式液压盘式制动器，其特征在于，所述手刹上安装有显示油柱，所述显示油柱内部为空心结构，所述显示油柱上端通过螺纹连接有上盖，所述上盖上通过螺纹连接有顶压杆，所述顶压杆下端固定有活塞，所述活塞位于显示油柱内部，所述顶压杆上端固定有转把，所述转把与上盖之间设有挤压弹簧，所述显示油柱与联动油管之间设有单向阀，所述单向阀使得显示油柱中的液压油单向流入至联动油管中。
7.根据权利要求1所述的一种防急刹式液压盘式制动器，其特征在于，所述制动单元包括制动夹钳、制动油腔、制动板，所述制动油腔设置在制动夹钳中，所述制动油腔内部设有制动塞，所述制动塞端头与制动油腔之间连接有复位弹簧，所述制动板固定在制动塞上。
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