DE10307569A1 - Apparatus for determining the stroke of a piston in a cylinder such as in hydraulic or pneumatic systems such as vibration damping units having a tubular measurement generator around the piston rod - Google Patents
Apparatus for determining the stroke of a piston in a cylinder such as in hydraulic or pneumatic systems such as vibration damping units having a tubular measurement generator around the piston rod Download PDFInfo
- Publication number
- DE10307569A1 DE10307569A1 DE10307569A DE10307569A DE10307569A1 DE 10307569 A1 DE10307569 A1 DE 10307569A1 DE 10307569 A DE10307569 A DE 10307569A DE 10307569 A DE10307569 A DE 10307569A DE 10307569 A1 DE10307569 A1 DE 10307569A1
- Authority
- DE
- Germany
- Prior art keywords
- sensor
- piston rod
- cylinder
- magnetizable material
- piston
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2861—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using magnetic means
-
- 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
- G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
- G01D2205/80—Manufacturing details of magnetic targets for magnetic encoders
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Wegbestimmung eines Kolbens in einem Zylinder, wobei der Kolben über eine Kolbenstange axial verschiebbar ist, nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for determining the path of a piston in a cylinder, the piston having a Piston rod is axially displaceable, according to the preamble of claim 1.
Derartige Vorrichtungen sind insbesondere zum
Einsatz bei hydraulischen Schwingungsdämpfern in verschiedenster Art
bekannt. Aus der
Des Weiteren ist es nach der
Sofern also bei den diversen Vorrichtungen zur Wegbestimmung magnetisierbare Werkstoffe oder Magnete direkt auf die Kolbenstange aufgebracht werden, ist es erforderlich, diese mit einer verschleißfesten Schicht aus nichtmagnetisierbarem Material zu überziehen. Daraus ergibt sich als Nachteil ein hoher Fertigungsaufwand, da die hochverschleißfeste Kolbenstangenoberfläche einer hochgenauen Bearbeitung unterzogen werden muss. Darüber hinaus nachteilig lassen sich Fertigungsfehler am magnetisierbaren Werkstoff erst nach der endgültigen Fertigstellung der gesamten Kolbenstange feststellen. Derartige Fehler können nur durch Aufarbeitung der Kolbenstange wieder beseitigt werden.If so for the various devices for Path determination of magnetizable materials or magnets directly on the piston rod to be applied, it is necessary to use this with a wear-resistant To coat layer of non-magnetizable material. This results in as a disadvantage, a high manufacturing effort, because the highly wear-resistant piston rod surface must be subjected to high-precision processing. Furthermore Manufacturing defects in the magnetizable material can be disadvantageous only after the final Check completion of the entire piston rod. such Mistakes can can only be eliminated by reconditioning the piston rod.
Der Erfindung liegt die Aufgabe zugrunde, eine einfache Ausbildung einer Vorrichtung zur Wegbestimmung eines Kolbens in einem Zylinder zu finden, wobei die Kolbenstange mit einem Messgeber versehen ist, welcher wiederum hinsichtlich seines Verschleißes durch ein hochverschleißfestes nichtmagnetisierbares Material abgedeckt wird.The invention has for its object a simple design of a device for determining the path of a piston to be found in a cylinder, the piston rod being provided with a sensor which is in turn due to its wear a highly wear-resistant non-magnetizable material is covered.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Aus- und Weiterbildungen sind in den Ansprüchen 2 bis 12 beschrieben.This object is achieved with the Features of claim 1 solved. Advantageous training and further training are in claims 2 to 12 described.
Die erfindungsgemäße Vorrichtung zur Wegbestimmung weist den Vorteil auf, dass sie in einfacher Weise auf die Kolbenstange aufgebracht werden kann. Darüber hinaus vorteilhaft können standardmäßige hydraulische, pneumatische oder hydropneumatische Aggregate, die üblicherweise ohne Vorrichtung zur Wegbestimmung ausgerüstet sind, in einfacher Weise mit derartigen Vorrichtungen nachgerüstet werden. Dazu müssen die Hauptbauteile dieser Aggregate nicht geändert werden.The device for path determination according to the invention has the advantage that it is easy on the piston rod can be applied. About that can also be advantageous standard hydraulic, pneumatic or hydropneumatic units, usually are equipped without a device for determining the route, in a simple manner be retrofitted with such devices. To do this, the Main components of these units cannot be changed.
Für den Fachmann selbstverständlich, können in bekannter Weise die durch die Vorrichtung ermittelten Wegdaten, beispielsweise über elektronische Mittel, in Geschwindigkeits- oder Beschleunigungsdaten umgerechnet werden.For the specialist, of course, can the path data determined by the device in a known manner, for example about electronic means, in speed or acceleration data can be converted.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben. Es zeigenAn embodiment of the invention is shown in the drawing and is described in more detail below. Show it
Das obere Ende des Zylinders
Im Ausführungsbeispiel ist auf die
Kolbenstange
Der Aufbau des Messgebers
Innerhalb des Außenrohres
Im Ausführungsbeispiel weist die Zylindermuffe
Der Sensor
Anstatt der vorstehend beschriebenen
mehrteiligen Ausbildung des Messgebers
Es ist auch möglich, entgegen der Beschreibung
des Ausführungsbeispiels,
den Messgeber
- 11
- Zylindercylinder
- 22
- Kolbenstangepiston rod
- 33
- Arbeitskolbenworking piston
- 44
- Arbeitsraumworking space
- 55
- Arbeitsraumworking space
- 66
- DurchströmventilDurchströmventil
- 77
- DurchströmventilDurchströmventil
- 88th
- Führungs- und Dichtungseinheitmanagerial and sealing unit
- 99
- MessgeberTransducers
- 1010
- Sensorsensor
- 1111
- Außenrohrouter tube
- 1212
- SchraubmufteSchraubmufte
- 1313
- Zylindermuffecylinder sleeve
- 1414
- magnetisierbares Materialmagnetizable material
- 1515
- Kragencollar
- 1616
- Sensorgehäusesensor housing
- 1717
- Deckelcover
- 1818
- SchraubmufteSchraubmufte
- NN
- Magnetisierungmagnetization
- SS
- Magnetisierungmagnetization
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10307569A DE10307569B4 (en) | 2003-02-22 | 2003-02-22 | Device for determining the path of a piston in a cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10307569A DE10307569B4 (en) | 2003-02-22 | 2003-02-22 | Device for determining the path of a piston in a cylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10307569A1 true DE10307569A1 (en) | 2004-09-09 |
DE10307569B4 DE10307569B4 (en) | 2005-07-28 |
Family
ID=32841802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10307569A Expired - Fee Related DE10307569B4 (en) | 2003-02-22 | 2003-02-22 | Device for determining the path of a piston in a cylinder |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10307569B4 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112005001650B4 (en) * | 2004-07-14 | 2012-06-06 | Tenneco Automotive Operating Company Inc. | Shock absorber with integrated displacement sensor |
CN102667179A (en) * | 2009-11-02 | 2012-09-12 | 斯堪尼亚商用车有限公司 | Arrangement and method for damping of a piston movement |
CN114458653A (en) * | 2022-02-11 | 2022-05-10 | 湖北山川液压设备有限公司 | High-precision hydraulic supporting system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0115008B1 (en) * | 1982-12-23 | 1987-11-19 | Kabushiki Kaisha S.G. | Positioning control system for a fluid powered cylinder |
DE4126586A1 (en) * | 1991-08-12 | 1993-02-18 | Bilstein August Gmbh Co Kg | SENSOR IN A VIBRATION DAMPER FOR MOTOR VEHICLES |
EP0536926A1 (en) * | 1991-10-09 | 1993-04-14 | Emhart Glass Machinery Investments Inc. | Hall sensor movement detection device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3442408A1 (en) * | 1984-06-02 | 1986-05-22 | Mannesmann Rexroth GmbH, 8770 Lohr | Level control device |
-
2003
- 2003-02-22 DE DE10307569A patent/DE10307569B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0115008B1 (en) * | 1982-12-23 | 1987-11-19 | Kabushiki Kaisha S.G. | Positioning control system for a fluid powered cylinder |
DE4126586A1 (en) * | 1991-08-12 | 1993-02-18 | Bilstein August Gmbh Co Kg | SENSOR IN A VIBRATION DAMPER FOR MOTOR VEHICLES |
EP0536926A1 (en) * | 1991-10-09 | 1993-04-14 | Emhart Glass Machinery Investments Inc. | Hall sensor movement detection device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112005001650B4 (en) * | 2004-07-14 | 2012-06-06 | Tenneco Automotive Operating Company Inc. | Shock absorber with integrated displacement sensor |
CN102667179A (en) * | 2009-11-02 | 2012-09-12 | 斯堪尼亚商用车有限公司 | Arrangement and method for damping of a piston movement |
CN114458653A (en) * | 2022-02-11 | 2022-05-10 | 湖北山川液压设备有限公司 | High-precision hydraulic supporting system |
Also Published As
Publication number | Publication date |
---|---|
DE10307569B4 (en) | 2005-07-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: THYSSENKRUPP BILSTEIN SUSPENSION GMBH, 58256 ENNEP |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140902 |