EP1460276A3 - Pneumatic cylinder with damping means in the end cap - Google Patents

Pneumatic cylinder with damping means in the end cap Download PDF

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Publication number
EP1460276A3
EP1460276A3 EP04101128A EP04101128A EP1460276A3 EP 1460276 A3 EP1460276 A3 EP 1460276A3 EP 04101128 A EP04101128 A EP 04101128A EP 04101128 A EP04101128 A EP 04101128A EP 1460276 A3 EP1460276 A3 EP 1460276A3
Authority
EP
European Patent Office
Prior art keywords
piston
pressure chamber
damping
cylinder housing
end cover
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Withdrawn
Application number
EP04101128A
Other languages
German (de)
French (fr)
Other versions
EP1460276A2 (en
Inventor
Staffan Hedlund
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.)
Bosch Rexroth Teknik AB
Original Assignee
Bosch Rexroth Teknik AB
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.)
Filing date
Publication date
Application filed by Bosch Rexroth Teknik AB filed Critical Bosch Rexroth Teknik AB
Publication of EP1460276A2 publication Critical patent/EP1460276A2/en
Publication of EP1460276A3 publication Critical patent/EP1460276A3/en
Withdrawn legal-status Critical Current

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
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/224—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston which closes off fluid outlets in the cylinder bore by its own movement

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)

Abstract

Pneumatikzylinder, umfassend ein Zylindergehäuse (1) mit Enddeckeln (2a; 2b) einen gleitend innerhalb des Zylindergehäuses (1) untergebrachten Kolben (3), zumindest ein Kolbendichtring (13a; 13b), außerradial angeordnet am Kolben (3) zur Bildung zumindest einer Druckkammer (6a; 6b), zumindest einen Anschluss (5a; 5b) zur Be - und Entlüftung der vom Kolben (3) unterteilten Druckkammer (6a; 6b), jeweilige Luftauslässe (7a; 7b) zur Herstellung einer Verbindung zur Druckkammer (6a; 6b), denen je ein äußerer Anschluss (5a; 5b) zugeordnet ist, und die in einem axialen Dämpfungsabstand (X) bezüglich des Endes des Zylindergehäuses (1) angeordnet sind, wobei Dämpfungsmittel zum gedämpften Stoppen des Kolbens (3) durch Zurückhalten der aus Druckkammer (6a; 6b) ausströmenden Luft vorgesehen sind, wobei die Dämpfungsmittel zumindest eine in einem Enddeckelkanal (9a; 9b) integrierte Dämpfungsdüse (8a; 8b) umfassen, die im Enddeckel (2a; 2b) angeordnet ist, um die aus der Druckkammer (6a; 6b) ausströmende Luft nur durch die Dämpfungsdüse (8a; 8b) zu leiten, wenn der Kolbendichlring (13a; 13b) den Luftauslass (7a; 7b) kurz vor Erreichen der Endlagenposition auf der Entlüftungsseite des Kolbens (3) passiert hat, wobei der Enddeckelkanal (9a; 9b) die Druckkammer (6a; 6b) mit dem zugeordneten äußeren Anschluss (5a; 5b) verbindet.

Figure 00000001
Pneumatic cylinder, comprising a cylinder housing (1) with end covers (2a, 2b), a piston (3) housed slidably inside the cylinder housing (1), at least one piston sealing ring (13a, 13b), arranged radially on the piston (3) to form at least one pressure chamber (6a, 6b), at least one connection (5a, 5b) for ventilating the pressure chamber (6a, 6b) subdivided by the piston (3), respective air outlets (7a, 7b) for establishing a connection to the pressure chamber (6a, 6b) ) each having an outer terminal (5a, 5b) associated therewith and disposed at an axial damping distance (X) with respect to the end of the cylinder housing (1), wherein damping means for damped stopping of the piston (3) by retaining the pressure chamber The dampening means comprise at least one damping nozzle (8a, 8b) integrated in an end cover channel (9a, 9b) which is arranged in the end cover (2a, 2b) in order to remove the pressure from the pressure chamber air (6a, 6b) flowing out only through the damping nozzle (8a; 8b) when the piston dome ring (13a, 13b) has passed the air outlet (7a; 7b) shortly before reaching the end position on the vent side of the piston (3), the end cover channel (9a; 9b) defining the pressure chamber (6a; 6b ) connects to the associated outer terminal (5a, 5b).
Figure 00000001
EP04101128A 2003-03-19 2004-03-18 Pneumatic cylinder with damping means in the end cap Withdrawn EP1460276A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10312004A DE10312004A1 (en) 2003-03-19 2003-03-19 Pneumatic cylinder with damping means on the end cover
DE10312004 2003-03-19

Publications (2)

Publication Number Publication Date
EP1460276A2 EP1460276A2 (en) 2004-09-22
EP1460276A3 true EP1460276A3 (en) 2005-06-01

Family

ID=32797956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04101128A Withdrawn EP1460276A3 (en) 2003-03-19 2004-03-18 Pneumatic cylinder with damping means in the end cap

Country Status (2)

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EP (1) EP1460276A3 (en)
DE (1) DE10312004A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005015216B4 (en) 2005-04-02 2007-02-01 Bosch Rexroth Ag Damping device for linear drives
DE102008027734A1 (en) * 2008-06-11 2009-12-17 Trw Automotive Gmbh Cylinder/piston unit for active undercarriage stabilization system, has cylinder comprising two end stops for determining axial end stop position of piston, where piston covers opening of chamber in axial stop position
DE102012011383A1 (en) 2012-06-11 2013-12-12 Robert Bosch Gmbh Fluid-operated linear drive has pressure medium connector that supplies pressure medium to cylinder bore through flow channel extending through lower slide
DE102012011381A1 (en) 2012-06-11 2013-12-12 Robert Bosch Gmbh Fluid-operated linear drive has fixed lower carriage and axially movable upper carriage, where working cylinder is integrated in lower carriage, through which upper carriage is movable from pressure medium connection on lower carriage
CN103994129B (en) * 2014-06-03 2017-01-25 宁波新佳行自动化工业有限公司 Autonomous filtering air cylinder
CN107061408B (en) * 2017-04-12 2019-01-25 郑元阳 A kind of built-in rear ends cylinder with lock of compact

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3033169A (en) * 1961-02-27 1962-05-08 Kimwood Machine Co Fluid pressure cylinder
DE1601749A1 (en) * 1968-01-15 1970-05-21 Hermann Post Hydraulic or pneumatic working cylinder
FR2244925A1 (en) * 1973-09-20 1975-04-18 Renault Shock absorber for end of piston travel - cylinder sleeve has outlet orifices to annular chambers
US5307729A (en) * 1990-11-09 1994-05-03 Ab Rexroth Mecman Device for stroke end cushioning and speed regulating the movement of a piston in a fluid pressure cylinder
DE29916190U1 (en) * 1999-09-15 1999-12-09 Festo Ag & Co Fluid operated drive
GB2347176A (en) * 1998-11-06 2000-08-30 Smc Corp Piston cushioning mechanism for air cylinder.
DE10145811A1 (en) * 2000-09-21 2002-05-23 Smc Corp Linear position member with air dampening mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794681A (en) * 1987-08-27 1989-01-03 Bimba Manufacturing Company Fluid cylinder cushioning system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3033169A (en) * 1961-02-27 1962-05-08 Kimwood Machine Co Fluid pressure cylinder
DE1601749A1 (en) * 1968-01-15 1970-05-21 Hermann Post Hydraulic or pneumatic working cylinder
FR2244925A1 (en) * 1973-09-20 1975-04-18 Renault Shock absorber for end of piston travel - cylinder sleeve has outlet orifices to annular chambers
US5307729A (en) * 1990-11-09 1994-05-03 Ab Rexroth Mecman Device for stroke end cushioning and speed regulating the movement of a piston in a fluid pressure cylinder
GB2347176A (en) * 1998-11-06 2000-08-30 Smc Corp Piston cushioning mechanism for air cylinder.
DE29916190U1 (en) * 1999-09-15 1999-12-09 Festo Ag & Co Fluid operated drive
DE10145811A1 (en) * 2000-09-21 2002-05-23 Smc Corp Linear position member with air dampening mechanism

Also Published As

Publication number Publication date
EP1460276A2 (en) 2004-09-22
DE10312004A1 (en) 2004-10-28

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