ZA826527B - Hydraulic cylinder with position sensor - Google Patents
Hydraulic cylinder with position sensorInfo
- Publication number
- ZA826527B ZA826527B ZA826527A ZA826527A ZA826527B ZA 826527 B ZA826527 B ZA 826527B ZA 826527 A ZA826527 A ZA 826527A ZA 826527 A ZA826527 A ZA 826527A ZA 826527 B ZA826527 B ZA 826527B
- Authority
- ZA
- South Africa
- Prior art keywords
- bar
- wiper
- bore
- piston
- shaped
- Prior art date
Links
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
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2853—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using potentiometers
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)
- Vehicle Body Suspensions (AREA)
- Characterised By The Charging Evacuation (AREA)
- Looms (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Fluid-Pressure Circuits (AREA)
- Reciprocating Pumps (AREA)
- Valve Device For Special Equipments (AREA)
- Body Structure For Vehicles (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
A piston (16) and rod (18) slide in a double acting cylinder with closed end (12) from which extends a bar (60) having a T-shaped cross-section with a cross piece (64) and stiffening web (66), the edges of which are rounded to engage and slide on the wall of a bore (22) in the piston rod (18), thus supporting the bar in a rigid manner. The face (68) of the cross piece (64) supports a potentiometer track which co-operates with a wiper (118) carried by an insulating carrier (110) fitted into the bore (22). The T-shaped bar (60) partitions the bore (22) into three chambers (65, 67, 69) which are in communication at the distal end of the bar. The carrier (110) is shaped to close the chamber (65) containing the wiper so that there is no fluid flow past the wiper as the piston (16) moves.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30033181A | 1981-09-08 | 1981-09-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA826527B true ZA826527B (en) | 1984-04-25 |
Family
ID=23158660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA826527A ZA826527B (en) | 1981-09-08 | 1982-09-07 | Hydraulic cylinder with position sensor |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0074266B1 (en) |
JP (1) | JPS5854208A (en) |
AT (1) | ATE18286T1 (en) |
AU (1) | AU549902B2 (en) |
BR (1) | BR8205185A (en) |
CA (1) | CA1180916A (en) |
DE (2) | DE3269407D1 (en) |
DK (1) | DK400982A (en) |
ES (1) | ES8402054A1 (en) |
MX (1) | MX154307A (en) |
ZA (1) | ZA826527B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE436072B (en) * | 1983-03-22 | 1984-11-05 | Hara Ab | POTENTIOMETER DEVICE FOR DETERMINATION OF PHYSICAL HYDRAULIC PISTONS AND SIMILAR |
DE3744254A1 (en) * | 1987-12-24 | 1989-07-13 | Integral Hydraulik Co | Linear potentiometer which is operated under oil |
US6725761B1 (en) | 2002-09-30 | 2004-04-27 | Prince Manufacturing Corporation | Spooling device assembly for hydraulic cylinder and method of assembling same |
US8100045B2 (en) | 2008-10-21 | 2012-01-24 | Clark Equipment Company | Hydraulic cylinder rod position sensor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3175094A (en) * | 1962-05-24 | 1965-03-23 | Guerin Engineering Inc | Electrohydraulic actuator |
FR1382342A (en) * | 1963-11-09 | 1964-12-18 | Mitchell Hydraulics Ltd | Improvements to mechanical control devices actuated by pressurized fluid |
US3412391A (en) * | 1964-10-31 | 1968-11-19 | Gullick Ltd | Pressure-fluid-operated devices and means for indicating the condition thereof |
US3726191A (en) * | 1971-02-08 | 1973-04-10 | Bunker Ramo | Electrically controlled hydraulic system and transducer therefor |
-
1982
- 1982-07-28 CA CA000408261A patent/CA1180916A/en not_active Expired
- 1982-08-20 AU AU87458/82A patent/AU549902B2/en not_active Ceased
- 1982-08-31 JP JP57151655A patent/JPS5854208A/en active Granted
- 1982-09-03 BR BR8205185A patent/BR8205185A/en unknown
- 1982-09-06 EP EP82304667A patent/EP0074266B1/en not_active Expired
- 1982-09-06 ES ES515508A patent/ES8402054A1/en not_active Expired
- 1982-09-06 DE DE8282304667T patent/DE3269407D1/en not_active Expired
- 1982-09-06 DE DE198282304667T patent/DE74266T1/en active Pending
- 1982-09-06 AT AT82304667T patent/ATE18286T1/en active
- 1982-09-07 MX MX194300A patent/MX154307A/en unknown
- 1982-09-07 ZA ZA826527A patent/ZA826527B/en unknown
- 1982-09-08 DK DK400982A patent/DK400982A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ES515508A0 (en) | 1984-01-01 |
DE74266T1 (en) | 1983-08-04 |
EP0074266B1 (en) | 1986-02-26 |
MX154307A (en) | 1987-06-30 |
DE3269407D1 (en) | 1986-04-03 |
DK400982A (en) | 1983-03-09 |
ES8402054A1 (en) | 1984-01-01 |
BR8205185A (en) | 1983-08-16 |
JPS5854208A (en) | 1983-03-31 |
AU8745882A (en) | 1983-03-17 |
CA1180916A (en) | 1985-01-15 |
ATE18286T1 (en) | 1986-03-15 |
JPH0233883B2 (en) | 1990-07-31 |
AU549902B2 (en) | 1986-02-20 |
EP0074266A1 (en) | 1983-03-16 |
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