CN1147087A - 压力套筒 - Google Patents

压力套筒 Download PDF

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Publication number
CN1147087A
CN1147087A CN96110784A CN96110784A CN1147087A CN 1147087 A CN1147087 A CN 1147087A CN 96110784 A CN96110784 A CN 96110784A CN 96110784 A CN96110784 A CN 96110784A CN 1147087 A CN1147087 A CN 1147087A
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pressure house
house
arch
pressure sleeve
piece
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CN1110695C (zh
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H·布兰默
F·贾基
U·赫凯尔
H·克雷布斯
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Robert Bosch GmbH
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Robert Bosch GmbH
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
    • G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
    • G01L23/222—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines using piezoelectric devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

本发明提供了一种压力套筒，特别是用于一种振动传感器的压力套筒，其具有一间接或直接固定件，该固定件穿过压力套筒(2)中的一中心掏空部分(12)，使压力套筒(2)的一支承面(3)支撑在一振动产生部件(例如内燃机的外壳)上。检测部件(6)，特别是一压电陶瓷片在一轴向预应力的作用下保持在压力套筒(2)的径向外侧。弹簧的止挡件由压力套筒(2)的外圆周上的至少两个拱形块(20)，最好五个拱形块构成，这些拱形块通过压力套筒(2)的(金属)材料的支承制成。

Description

压力套筒
本发明涉及一种主权利要求所述类型的压力套筒，特别是用于一种振动传感器的压力套筒。
DE-OS4403660公开了一种压力套筒，它用于内燃机的爆燃传感器。这种压力套筒通过接触区域固定安装在部件上，可对该部件的振动进行检测。需检测的振动是内燃机运转时的爆燃噪声，该爆燃噪声通过压力套筒传到作为爆燃传感器的压电陶瓷振动传感器上，并被转换成一可分析的输出信号。把这种类型的爆燃传感器安装或夹装到压力套筒上并固定到振动部件上时会对制造方式以及工作连接测定线路中的瞬时误差测量和故障产生很大的影响。
这种公知的压力套筒通常由一种非常抗压的硬材料，例如钢制作，以便在较大的压力和温度波动下仍能保持无缺陷的检测。而将压力套筒和传感器一同夹紧封闭起来的壳体通常是由一种塑料，例如聚氨甲酸酯(PUR)或玻璃纤维加强的聚酰氨(PA66 GF35)制成。例如从EP0211019B1中得知，这种不同的部件可通过相应的螺纹结构彼此固定连接，并且这种连接基本上不受温度影响。
按照本发明的上述类型的压力套筒带有权利要求1的特征部分的特征，特别是产生预应力弹簧的一止挡件是以简单的方式通过压力套筒的支承在该弹簧上方形成，或者按照从属权利要求4，在一附加的可装卸环的上方形成，因此，这种压力套筒是有利的。产生支承的拱形块，特别是按照从属权利要求2，在压力套筒的圆周上平均分配的五个支承成形块使整个具有检测部件的装置特别牢固地保持在压力套筒上。按照本发明的这种装置，由于避免了紧张的加工过程，也就是说，不必切削出用于牢固旋紧的螺纹，因此可以保证实现一种简单而又可靠的制造方法，并且省去了去掉废屑的后序加工。根据支承的程度可调准压电陶瓷片(检测部件)的预应力。
进一步的有利的实施形式在从属权利要求中予以阐述。
下面接合附图阐述带有一外壳的按照本发明的压力套筒的实施例。
图1为穿过一爆燃传感器外壳的纵剖面图，该爆燃传感器带有一压力套筒和在一弹簧上方的支承成形块；
图2为穿过图1中的压力套筒的一横截面图；
图3为图1中的压力套筒的一细部的一截面；
图4至6对应于上述各图，只是在弹簧上方带有一附加环。
图1中示出一种带有一外壳1的内燃机燃传感器，该爆燃传感器内设置一压力套筒2，其下支撑面3置于在此未示出的一需检测振动的发动机的外壳上。在压力套筒2的外圆周上，从下支撑面3向上依排列的部件是：一隔离垫片4、一接触垫片5、一作为检测装置的压电陶瓷片6，其上面又是一第二接触垫片5和一第二隔离垫片4。位于该部件上面的是一地震块7，一盘形弹簧8将其压向压电陶瓷片6，拱形块20用作盘形弹簧8的止挡件，这在图2中可特别清楚地看出。在此，五个拱形块均匀地分布在压力套筒2的圆周上。
在塑料的、特别是以注塑方法制成的外壳的一整体连接部件10内插有一连接电缆11。连接电缆11的导线与压电陶瓷6两侧的两接触垫片5连接，并输送由压电陶瓷片6的压应力所产生的电压。一图中未示出的固定螺栓穿过压力套筒2内的一中心掏空部分或一孔12，通过该螺栓，整个爆燃传感器可间接或直接安装在内燃机壳体上。
在安装爆燃传感器时，全部由固定螺栓所施加的转矩都传递给压力套筒2，这就是说，在固定时不会有力作用在压电陶瓷片6上。盘形弹簧8紧贴着通过填缝在压力套筒2的周边形成的拱形块20，从而由部件4至7构成的整个装置压紧压力套筒2的一前伸区域13，因此产生一预应力，使整个振动传感器的主要部件保持在其起始位置。
预应力这样选择，使作用在压电陶瓷片6上的轴向力正好还不足以产生长久的电信号变化，并且最大程度地不受装配压力套筒2时热膨胀和不可避免地产生的压缩的影响。由地震块7所产生的、与内燃机的振成比例的脉冲在压电陶瓷6中转变成电压脉冲，该电压脉冲可在一相应的测量仪器上读出，或者可进一步传送到一控制设备中。
在图3中示出了压力套筒2在拱形块20设置的范围内的一详细视图。
在图4至6中示出了按照本发明的压力套筒2的另一实施形式。在此实施例中，在拱形块20与盘形弹簧8之间还设置一附加环21，而图4至6的压力套筒中与图1至3所示出的相同的其它特征采用相同的编号。

Claims (9)

1.压力套筒，特别是用于一振动传感器的压力套筒，带有一间接或直接固定件、检测部件(6)和一压力套筒上的预应力弹簧止挡件，该固定件穿过压力套筒(2)中的一中心掏空部分(12)，具有支承面(3)的压力套筒(2)紧固在一振动产生部件上，检测部件(6)在一轴向预应力作用下径向向外的保持在压力套筒(2)上，其特征在于：止挡件由至少两个在压力套筒(2)的外圆周上的拱形块(20)构成，该拱形块可由压力套筒(2)的支承材料制成。
2.如权利要求1所述的压力套筒，其特征在于：共有五个拱形块(20)围绕压力套筒的圆周分布。
3.如权利要求1或2所述的压力套筒，其特征在于：弹簧(8)与拱形块(20)直接相邻。
4.如权利要求1或2所述的压力套筒，其特征在于：在弹簧(8)与拱形块(20)之间设置一可径向撑开的挡圈(21)或一卡圈。
5.如权利要求1至4中任一项所述的压力套筒，其特征在于：压力套筒(2)由钢材制成。
6.如权利要求1至4中任一项所述的压力套筒，其特征在于：压力套筒(2)由黄铜制成。
7.如权利要求1至6中任一项所述的压力套筒，其特征在于：检测部件(6)为一压电陶瓷片。
8.如权利要求1至7中任一项所述的压力套筒，其特征在于：在压力套筒(2)的支承面(3)上，在用于固定件的开口与径向外缘之间有一向上的倾斜部分，倾斜角为0.5°至1.5°。
9.如权利要求1至8中任一项所述的压力套筒，其特征在于：振动产生部件为内燃机的发动机组。
CN96110784A 1995-07-03 1996-07-03 压力套筒 Expired - Lifetime CN1110695C (zh)

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DE19524152.5 1995-07-03
DE19524152A DE19524152C1 (de) 1995-07-03 1995-07-03 Schwingungsaufnehmer

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CN1147087A true CN1147087A (zh) 1997-04-09
CN1110695C CN1110695C (zh) 2003-06-04

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US (1) US5798453A (zh)
KR (1) KR100481238B1 (zh)
CN (1) CN1110695C (zh)
DE (1) DE19524152C1 (zh)
HU (1) HU219527B (zh)

Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN100451590C (zh) * 2005-11-22 2009-01-14 三菱电机株式会社 爆震传感器
CN101680785B (zh) * 2007-06-06 2011-04-20 恩德莱斯和豪瑟尔韦泽两合公司 用于确定和/或监控测量变量的装置
CN1760654B (zh) * 2004-10-15 2011-07-13 三菱电机株式会社 爆震传感器制造方法
CN101632003B (zh) * 2007-02-23 2011-07-27 罗伯特·博世有限公司 事故传感器
CN103674416A (zh) * 2012-09-20 2014-03-26 日本特殊陶业株式会社 爆震传感器
CN107110732A (zh) * 2015-01-09 2017-08-29 罗伯特·博世有限公司 用于接收引起振动的构件的振动的振动接收装置
CN107727312A (zh) * 2016-08-10 2018-02-23 罗伯特·博世有限公司 用于接收引起振动的构件的振动的振动接收器

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DE19829409C2 (de) * 1998-07-01 2003-11-13 Bosch Gmbh Robert Schwingungsaufnehmer mit einer Druckhülse
DE19829379C2 (de) * 1998-07-01 2002-11-07 Bosch Gmbh Robert Schwingungsaufnehmer mit einer Druckhülse
DE19829407A1 (de) * 1998-07-01 2000-01-13 Bosch Gmbh Robert Schwingungsaufnehmer mit einer Druckhülse
DE10044476A1 (de) * 2000-09-08 2002-04-04 Bosch Gmbh Robert Schwingungsaufnehmer zur mittelbaren oder unmittelbaren Befestigung an einem Schwingungen aufweisenden Bauteil
DE10044483A1 (de) * 2000-09-08 2001-07-19 Bosch Gmbh Robert Schwingungsaufnehmer sowie Verfahren zur Herstellung eines Schwingungsaufnehmers
US6931905B2 (en) * 2003-04-15 2005-08-23 Stolle Machinery Company, Llc Method and apparatus for forming container bodies
WO2008072807A1 (en) * 2006-12-14 2008-06-19 Inzi Controls Co., Ltd. Sensor for vibration pickup
WO2011019318A1 (en) * 2009-08-14 2011-02-17 Peter Stenlund A sensor unit positioned between opposing surfaces and an alert system
DE102011004144A1 (de) 2011-02-15 2012-08-16 Robert Bosch Gmbh Schwingungsaufnehmer und Verfahren zum Herstellen eines derartigen Schwingungsaufnehmers
DE102016224801A1 (de) * 2016-12-13 2018-06-14 Robert Bosch Gmbh Schwingungsaufnehmer zum Aufnehmen von Schwingungen eines Schwingungen verursachenden Bauteils

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1760654B (zh) * 2004-10-15 2011-07-13 三菱电机株式会社 爆震传感器制造方法
CN100451590C (zh) * 2005-11-22 2009-01-14 三菱电机株式会社 爆震传感器
CN101632003B (zh) * 2007-02-23 2011-07-27 罗伯特·博世有限公司 事故传感器
CN101680785B (zh) * 2007-06-06 2011-04-20 恩德莱斯和豪瑟尔韦泽两合公司 用于确定和/或监控测量变量的装置
CN103674416A (zh) * 2012-09-20 2014-03-26 日本特殊陶业株式会社 爆震传感器
US9291518B2 (en) 2012-09-20 2016-03-22 Ngk Spark Plug Co., Ltd. Knocking sensor
CN103674416B (zh) * 2012-09-20 2017-03-01 日本特殊陶业株式会社 爆震传感器
CN107110732A (zh) * 2015-01-09 2017-08-29 罗伯特·博世有限公司 用于接收引起振动的构件的振动的振动接收装置
CN107727312A (zh) * 2016-08-10 2018-02-23 罗伯特·博世有限公司 用于接收引起振动的构件的振动的振动接收器

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Publication number Publication date
HUP9601818A3 (en) 2000-10-30
HU9601818D0 (en) 1996-08-28
HUP9601818A2 (hu) 1999-02-01
DE19524152C1 (de) 1996-05-23
US5798453A (en) 1998-08-25
KR970007312A (ko) 1997-02-21
HU219527B (hu) 2001-04-28
CN1110695C (zh) 2003-06-04
KR100481238B1 (ko) 2005-06-13

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