EP0721067A2 - Vérin d'actionnement à fluide à capteur de champs magnétique - Google Patents

Vérin d'actionnement à fluide à capteur de champs magnétique Download PDF

Info

Publication number: EP0721067A2
Authority: EP; European Patent Office
Prior art keywords: cylinder; permanent magnet; piston; piston arrangement; arrangement according
Prior art date: 1995-01-04
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

Application number

EP95120518A

Other languages

German (de)

English (en)

Other versions

EP0721067B1 (fr

EP0721067A3 (fr

Inventor

Albert Dipl -Ing. Beetz

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Beetz Hydraulik GmbH

Original Assignee

Beetz Hydraulik GmbH

Priority date (The priority date 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 date listed.)

1995-01-04

Filing date

1995-12-23

Publication date

1996-07-10

1995-12-23 Application filed by Beetz Hydraulik GmbH filed Critical Beetz Hydraulik GmbH

1996-07-10 Publication of EP0721067A2 publication Critical patent/EP0721067A2/fr

1998-02-11 Publication of EP0721067A3 publication Critical patent/EP0721067A3/fr

2002-08-28 Application granted granted Critical

2002-08-28 Publication of EP0721067B1 publication Critical patent/EP0721067B1/fr

2015-12-23 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

Classifications

- 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
- F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches

Definitions

the axial dimensions of the ring disk made of ferromagnetic material are at most half as large as the axial dimensions of the permanent magnet. This largely avoids scattering and concentrates the magnetic flux.
the bushing consists in particular of austenitic steel and is welded into the recess and receives the sensor in a blind hole. It is clear that in special cases, brazing instead of welding may be sufficient.
the inside of the cylinder is separated from the sensor by the welded socket and the blind hole in the socket. The sensor can be easily replaced.
the recess in the cylinder can extend into the interior of the cylinder. In this case it is advantageous if the inner end of the bushing is machined together with the inner surface of the cylinder. This procedure ensures that, despite the bushing used, the inner surface of the cylinder is completely smooth is, so that no additional stresses arise for the seals.
a recess 20 is provided in the wall of the cylinder 10, in which the bushing 21 is inserted or welded.
This bushing 21 receives the magnetic field sensor 2 in the blind bore 22, the connections of which are designated by 23.
the magnetic field sensor can be a reed switch, for example, which is housed in a protective tube. However, it is better to provide a magnetic field sensor which, in particular, has no moving parts and, for example, inductively determines the magnetic field and emits the corresponding signal.

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Actuator (AREA)
Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Pistons, Piston Rings, And Cylinders (AREA)
Fluid-Pressure Circuits (AREA)

EP95120518A 1995-01-04 1995-12-23 Vérin d'actionnement à fluide à capteur de champs magnétique Expired - Lifetime EP0721067B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19500137A DE19500137A1 (de)	1995-01-04	1995-01-04	Druckmittelbetätigte Zylinder-Kolben-Anordnung mit einem Magnetfeldsensor
DE19500137		1995-01-04

Publications (3)

Publication Number	Publication Date
EP0721067A2 true EP0721067A2 (fr)	1996-07-10
EP0721067A3 EP0721067A3 (fr)	1998-02-11
EP0721067B1 EP0721067B1 (fr)	2002-08-28

Family

ID=7750997

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP95120518A Expired - Lifetime EP0721067B1 (fr)	1995-01-04	1995-12-23	Vérin d'actionnement à fluide à capteur de champs magnétique

Country Status (3)

Country	Link
EP (1)	EP0721067B1 (fr)
AT (1)	ATE223002T1 (fr)
DE (2)	DE19500137A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2004081388A1 (fr) *	2003-03-11	2004-09-23	Hydac Technology Gmbh	Accumulateur a piston
EP1445494A3 (fr) *	2003-02-04	2004-09-29	Mann+Hummel Gmbh	Actionneur avec capteur de position
DE102005030722A1 (de) *	2005-07-01	2007-01-04	Bosch Rexroth Teknik Ab	Druckmittelzylinder
CN102943784A (zh) *	2012-11-19	2013-02-27	湖南特力液压有限公司	缸筒、液压缸及包含该液压缸的泵送设备
EP2878831A1 (fr) *	2013-11-07	2015-06-03	Bümach Engineering International B.V.	Cylindre de travail
WO2017211519A1 (fr) *	2016-06-07	2017-12-14	Zf Friedrichshafen Ag	Boîte de vitesses à dipositif de changement de vitesses
CN109162996A (zh) *	2018-11-06	2019-01-08	江苏中天科技电缆附件有限公司	深孔内壁应变片的粘贴装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE29607993U1 (de) *	1996-05-03	1996-08-01	Festo Kg, 73734 Esslingen	Kolben für einen Arbeitszylinder
DE19637296A1 (de) *	1996-09-13	1998-03-19	Wabco Gmbh	Kolben/Zylinder-Anordnung
DE19712829B4 (de) *	1997-03-26	2005-02-17	Sick Ag	Vorrichtung zur Erkennung der Position eines beweglichen Gegenstandes
DE19752671B4 (de) *	1997-11-28	2006-11-23	Ludwig Ehrhardt Gmbh	Blockzylinder zur Aufnahme und Führung von Werkzeugen auf einer Werkzeugmaschine oder auf einem Arbeitstisch
DE19756637A1 (de)	1997-12-19	1999-06-24	Zahnradfabrik Friedrichshafen	Schalteinrichtung
DE19756639A1 (de)	1997-12-19	1999-06-24	Zahnradfabrik Friedrichshafen	Schalteinrichtung
DE10053995A1 (de)	2000-10-31	2002-05-08	Continental Teves Ag & Co Ohg	In einen Hauptzylinder integrierter Signalgeber mit Hall-Sensor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE8209420U1 (de) *	1982-04-02	1983-09-15	Robert Bosch Gmbh, 7000 Stuttgart	Kolben fuer beruehrungslose abtastung der kolbenstellung
DE3510601A1 (de) *	1985-03-23	1986-09-25	Wabco Westinghouse Steuerungstechnik GmbH & Co, 3000 Hannover	Kolbeneinheit fuer einen arbeitszylinder mit einer einrichtung zum erfassen der kolbenposition
CH674058A5 (fr) *	1986-10-22	1990-04-30	Festo Kg
JPS63122902A (ja) *	1986-11-13	1988-05-26	Ckd Controls Ltd	移動体の位置確認装置
DE9010114U1 (de) *	1990-07-03	1990-09-06	Festo KG, 7300 Esslingen	Arbeitszylinder
DE4122481C2 (de) *	1991-07-06	1995-08-31	Kuhnke Gmbh Kg H	Kolben-Zylinder-Anordnung
DE9305640U1 (de) *	1993-04-15	1994-08-25	Hydraulik Techniek, Emmen	Druckmittelbetätigter Arbeitszylinder

1995
- 1995-01-04 DE DE19500137A patent/DE19500137A1/de not_active Withdrawn
- 1995-12-23 DE DE59510348T patent/DE59510348D1/de not_active Expired - Fee Related
- 1995-12-23 EP EP95120518A patent/EP0721067B1/fr not_active Expired - Lifetime
- 1995-12-23 AT AT95120518T patent/ATE223002T1/de not_active IP Right Cessation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1445494A3 (fr) *	2003-02-04	2004-09-29	Mann+Hummel Gmbh	Actionneur avec capteur de position
WO2004081388A1 (fr) *	2003-03-11	2004-09-23	Hydac Technology Gmbh	Accumulateur a piston
US8365651B2 (en)	2003-03-11	2013-02-05	Hydac Technology Gmbh	Piston-type accumulator
DE102005030722A1 (de) *	2005-07-01	2007-01-04	Bosch Rexroth Teknik Ab	Druckmittelzylinder
CN102943784A (zh) *	2012-11-19	2013-02-27	湖南特力液压有限公司	缸筒、液压缸及包含该液压缸的泵送设备
CN102943784B (zh) *	2012-11-19	2015-06-10	湖南特力液压有限公司	缸筒、液压缸及包含该液压缸的泵送设备
EP2878831A1 (fr) *	2013-11-07	2015-06-03	Bümach Engineering International B.V.	Cylindre de travail
WO2017211519A1 (fr) *	2016-06-07	2017-12-14	Zf Friedrichshafen Ag	Boîte de vitesses à dipositif de changement de vitesses
CN109312856A (zh) *	2016-06-07	2019-02-05	Zf 腓德烈斯哈芬股份公司	具有切换单元的变速器
CN109162996A (zh) *	2018-11-06	2019-01-08	江苏中天科技电缆附件有限公司	深孔内壁应变片的粘贴装置

Also Published As

Publication number	Publication date
EP0721067B1 (fr)	2002-08-28
DE59510348D1 (de)	2002-10-02
ATE223002T1 (de)	2002-09-15
DE19500137A1 (de)	1996-07-11
EP0721067A3 (fr)	1998-02-11

Publication	Publication Date	Title
EP0721067A2 (fr)	1996-07-10	Vérin d'actionnement à fluide à capteur de champs magnétique
DE3723747C2 (fr)	1989-12-14
DE4116651C2 (de)	2000-01-27	Arbeitszylinder
DE3905023A1 (de)	1990-08-30	Elektromagnet mit einem tauchanker
DE102005024101B4 (de)	2015-02-26	Magnetfelderzeugungsvorrichtung und diese verwendender Wegsensor
DE102008062521A1 (de)	2009-10-01	Strömungssensor für fluide Medien
DE3227245C2 (fr)	1992-12-24
DE4237928C2 (de)	1995-01-19	Mikroschalter mit einem Magnetfeld-Sensor
EP0057004A1 (fr)	1982-08-04	Débitmètre
EP0207270B1 (fr)	1993-01-20	Dispositif de commutation fonctionnant sans contact par détecteur de proximité
DE3318246C2 (fr)	1990-07-05
DE19712829A1 (de)	1998-10-01	Vorrichtung zur Erkennung der Position eines beweglichen Gegenstandes
DE3634730A1 (de)	1988-04-21	Arbeitszylinder, insbesondere pneumatikzylinder fuer komponenten von handlingautomaten
DE4322255A1 (de)	1995-01-19	Dämpfungsvorrichtung
DE3635894A1 (de)	1988-05-05	Stossdaempfer
DE3524414C2 (de)	1994-06-16	Linearantrieb
DE19836516A1 (de)	1999-02-18	Elektromagnetischer Linearmotor
EP0620372B1 (fr)	1998-09-30	Vérin à fluide sous pression
DE19513967A1 (de)	1996-10-17	Kolben-Zylinder-Einheit
DE4029633A1 (de)	1991-04-11	Wegmesssystem
DE102016202304B4 (de)	2025-10-30	Wegeventil mit elektromagnetisch betätigter Rastung
DE4423122A1 (de)	1996-01-04	Pulsweitenmoduliert angesteuerter Proportionalmagnet
DE3510601A1 (de)	1986-09-25	Kolbeneinheit fuer einen arbeitszylinder mit einer einrichtung zum erfassen der kolbenposition
DE19805225C5 (de)	2005-02-03	Positionserfassungsvorrichtung
DE3612752C2 (de)	1997-08-21	Drosselvorrichtung

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