EP1286060A1 - Vérin avec amortissement de la vitesse du piston - Google Patents
Vérin avec amortissement de la vitesse du piston Download PDFInfo
- Publication number
- EP1286060A1 EP1286060A1 EP02102027A EP02102027A EP1286060A1 EP 1286060 A1 EP1286060 A1 EP 1286060A1 EP 02102027 A EP02102027 A EP 02102027A EP 02102027 A EP02102027 A EP 02102027A EP 1286060 A1 EP1286060 A1 EP 1286060A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- damping
- block cylinder
- cylinder
- cylinder according
- 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.)
- Withdrawn
Links
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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/222—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position
Definitions
- the invention relates to a block cylinder with hydraulically operated pistons and piston speed damping in the end position range.
- Block cylinders with hydraulically operated pistons that are assigned to tools, their job is to work at high speeds on a workpiece moving up and acting on it with great pressure are special Conditions exposed. After completion of the work process, the high remains Piston speed is usually maintained and the pistons are with accelerated to the full hydraulic pressure in their end positions. This leads to high signs of wear.
- the piston in a block cylinder in his Flow rate affect that dampening effect initially builds up slowly and then becomes fully effective at a certain point in time. This is done by recording the piston speed and piston movement and Location, with the possibility of derived data on a Control.
- a cylinder chamber 3a; b is let into the housing 1.
- the piston 4 is guided, the application of pressure to it Line connections 12a; b takes place.
- the piston 4 is a piston rod 5 on one side assigned.
- a block cylinder there are two displacement spaces 7a, b for the piston 4 educated. These displacement spaces serve to break down the hydraulic fluid, depending on the piston movement and piston speed.
- the Dismantling takes place via a system of two drainage channels in such a way that one channel 13a; b is throttled and the other channel 11a; b can be influenced as a function of time and distance is.
- Throttles 8a, b are assigned to displacement spaces 7. These chokes are effective directly in the throttle channels 13a; b and thus have a direct Access to the displacement rooms 7. These throttles are adjustable so that the Flow rate of the hydraulic fluid in the given time unit Is adaptable. This throttling effect can also be designed so that it can be changed during the course of an operation. This change can run according to a given program or depending on a Signal control can be made. This signal control goes from two to that Sensors assigned to block cylinders 6a; b. These sensors measure the way and the speed of the piston 4 during the operation. The of The measurement data recorded is converted into signals. The sensors can can also be used to determine the position of the pistons by the Detect the piston position and thus determine the end position of the piston enable. The position detection also allows other functions to initiate with the sensors, depending on interference, e.g. if the pistons get stuck due to defective tools.
- a damping ring 9a; b is inserted in each displacement space 7a; b.
- This Damping ring 9 forms between its inner surface and the piston surface a gap 10a; b.
- Behind the gap 10 of the damping ring 9 are the direct ones Drain channels 11a; b arranged. Via these channels 11, the hydraulic fluid derived directly.
- the throttle channels 13a; b of the throttles 8a; b are immediately in front the damping rings 9a; b arranged towards the interior of the cylinder spaces 3.
- the Piston 4 is provided with two damping surfaces 14; 15 populated over a predetermined area of the piston form a cross-sectional thickening.
- Fig. 2 shows a continuous piston 4 in the form of a double piston, the A piston rod 5 is assigned on each side and is therefore on both sides is operational. All functional processes within the block cylinder are identical with those of the single-acting piston.
- Fig. 1 the functional sequence takes place by the piston 4 with pressure Line connection 12a is applied.
- the piston 4 is thereby moved, and out of the housing 1 to the right. This is in the cylinder space 3b and Displacement 7b a pressure on the hydraulic fluid therein exercised.
- the hydraulic fluid is led once into the drain channel 11b and derived from there.
- part of the hydraulic fluid is already supplied via the throttle duct 13b to the throttle 8b and from there with a predetermined one Throttling, which was kept small at this time, dissipated.
- Throttling which was kept small at this time, dissipated.
- the throttle 8b develops its throttling effect either according to a predetermined one Program or depending on signals from the sensors 6a; b are given, depending on the data recorded for path and Piston speed. This enables time-dependent control for the Build up damping of the piston depending on the path and speed is and thus all conditions of the different mass movements and Mass accelerations recorded.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001139938 DE10139938A1 (de) | 2001-08-14 | 2001-08-14 | Blockzylinder mit Kolbengeschwindigkeitsdämpfung |
DE10139938 | 2001-08-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1286060A1 true EP1286060A1 (fr) | 2003-02-26 |
Family
ID=7695435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02102027A Withdrawn EP1286060A1 (fr) | 2001-08-14 | 2002-07-11 | Vérin avec amortissement de la vitesse du piston |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1286060A1 (fr) |
DE (1) | DE10139938A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106481614A (zh) * | 2016-11-03 | 2017-03-08 | 苏州盛天力离心机制造有限公司 | 气液阻尼缸 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1410314A (fr) * | 1964-07-22 | 1965-09-10 | Perfectionnements aux vérins hydrauliques, notamment pour la commande automatique de machines ou analogues | |
JPS59151605A (ja) * | 1983-02-16 | 1984-08-30 | Shiyoukuu:Kk | プツシユプルケ−ブル作動用シリンダ装置 |
US6038956A (en) * | 1998-04-02 | 2000-03-21 | Lane; Norman | Dynamic pressure regulator cushion |
US6085632A (en) * | 1998-01-16 | 2000-07-11 | Festo Ag & Co. | Apparatus for the damped positioning of a piston |
DE19915260A1 (de) * | 1999-04-03 | 2000-10-05 | Bosch Gmbh Robert | Linearantrieb |
-
2001
- 2001-08-14 DE DE2001139938 patent/DE10139938A1/de not_active Withdrawn
-
2002
- 2002-07-11 EP EP02102027A patent/EP1286060A1/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1410314A (fr) * | 1964-07-22 | 1965-09-10 | Perfectionnements aux vérins hydrauliques, notamment pour la commande automatique de machines ou analogues | |
JPS59151605A (ja) * | 1983-02-16 | 1984-08-30 | Shiyoukuu:Kk | プツシユプルケ−ブル作動用シリンダ装置 |
US6085632A (en) * | 1998-01-16 | 2000-07-11 | Festo Ag & Co. | Apparatus for the damped positioning of a piston |
US6038956A (en) * | 1998-04-02 | 2000-03-21 | Lane; Norman | Dynamic pressure regulator cushion |
DE19915260A1 (de) * | 1999-04-03 | 2000-10-05 | Bosch Gmbh Robert | Linearantrieb |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 284 (M - 348) 26 December 1984 (1984-12-26) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106481614A (zh) * | 2016-11-03 | 2017-03-08 | 苏州盛天力离心机制造有限公司 | 气液阻尼缸 |
Also Published As
Publication number | Publication date |
---|---|
DE10139938A1 (de) | 2003-02-27 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
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AX | Request for extension of the european patent |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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17P | Request for examination filed |
Effective date: 20030826 |
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AKX | Designation fees paid |
Designated state(s): AT CH ES FR GB IT LI |
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18W | Application withdrawn |
Effective date: 20031001 |
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REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |