EP0476265A1 - Vérin à fluide avec cylindre fendu - Google Patents

Vérin à fluide avec cylindre fendu Download PDF

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Publication number
EP0476265A1
EP0476265A1 EP91112327A EP91112327A EP0476265A1 EP 0476265 A1 EP0476265 A1 EP 0476265A1 EP 91112327 A EP91112327 A EP 91112327A EP 91112327 A EP91112327 A EP 91112327A EP 0476265 A1 EP0476265 A1 EP 0476265A1
Authority
EP
European Patent Office
Prior art keywords
guide
cylinder
slot
output member
pressure medium
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
Application number
EP91112327A
Other languages
German (de)
English (en)
Other versions
EP0476265B1 (fr
Inventor
Heinz Podlesak
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.)
Norgren GmbH
Original Assignee
Knorr Bremse AG
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 Knorr Bremse AG filed Critical Knorr Bremse AG
Publication of EP0476265A1 publication Critical patent/EP0476265A1/fr
Application granted granted Critical
Publication of EP0476265B1 publication Critical patent/EP0476265B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/082—Characterised by the construction of the motor unit the motor being of the slotted cylinder type

Definitions

  • the invention relates to a pressure medium cylinder with a longitudinally slotted cylinder tube which is closed at the end and which is delimited on the slot side by an outer surface which is perpendicular to the slot and in which a piston is guided in a sealed manner by means of two piston seals arranged near its ends and is guided in the area between the piston seals by means of one of the slots penetrating connecting means is firmly connected to a driver located in front of the slot on the outside of the cylinder tube, with a sealing tape arranged inside the inside of the cylinder tube and pressure-tightly covering the slot outside the section enclosed by the two piston seals and optionally with a covering tape covering the outside of the slot with the exception of the passage area of the connecting means, with an the outside of the slot axially displaceably guided force output member, which at least faces away from the driver and overlaps laterally, where in the case of the guide of the force-transmitting member formed on both sides of the slot symmetrically to a central plane running through the slot and containing the cylinder
  • Such a pressure medium cylinder is known from EP-B 0 157 892, in which the guide is obviously designed in accordance with DE-A 31 24 915 mentioned in this document or EP-B 0 068 088 corresponding to it.
  • the force-transmitting member at least partially overlaps the side surfaces of the cylinder tube in an area in which wedge-like guide grooves are incorporated into these side surfaces.
  • the force output member carries guide strips which engage the keyways with correspondingly roof-like guide surfaces. The guide strips can be adjusted perpendicularly to the central plane by means of adjusting screws arranged at right angles to the central plane in the force output member.
  • the guidance of the force-transmitting member on both sides of the slot within the guide groove has one guideway and the other guideway on the outer surface, one guideway being non-adjustable and inclined to The central plane runs, and the other guideway runs parallel to the outer surface and has the guide strip that is adjustable in the direction perpendicular to the outer surface.
  • the guide strips have to be guided so as to be able to move transversely to the center plane in the force output member in order to be able to adjust them by means of the adjusting screws.
  • the transversely displaceable guidance of the guide strips requires play between them and the force output element, which cannot be adjusted by means of the adjusting screws.
  • the pressure medium cylinder has a cylinder tube 1, which is closed at the end by cylinder cover 2.
  • the cylinder covers 2 convey the pressure medium feeds to the pressurization chambers 4 and 5 located on both sides of a piston 3.
  • the cylinder tube 1 has an approximately square cross-section on the outside, it is provided with an eccentrically arranged cylinder bore 6, in which the piston 3 is guided.
  • a plurality of mounting and guide grooves 7, which are of no further interest here, are incorporated.
  • the cylinder wall 8 of the cylinder tube 1 lying in the direction of offset of the cylinder bore 6 is cut open by means of a slot 10 running parallel to the cylinder axis 9.
  • the cylinder tube 1 has an outer surface 11 on the side of the slot 10 and a side surface 12 or 13 on the side of the slot 10.
  • a central plane 14 runs through the cylinder axis 9 and centrally through the slot 10.
  • the piston 3 is axially relatively elongated, it has a piston seal 15 near each of its two ends to limit the pressurizing spaces 4 and 5.
  • the piston 3 is provided with a web-like connecting means 16 which extends through the slot 10 and firmly connects the piston 3 to a driver 17 located in front of the slot 10 on the outside of the cylinder tube.
  • the driver 17 is facing away from the slot and overlapped laterally by a bow-like force output member 18 which is guided on both sides of the slot 10 by means of guide arrangements to be described later in detail on the cylinder tube 1.
  • the slot 10 is covered on the inside of the cylinder tube in the area of the pressurized spaces 4 and 5 by a sealing tape 19 in a pressure-tight manner; in the area of the piston 3 between its piston seals 15, the sealing tape 19 is lifted from the slot 10 and guided through a guide channel 20 of the piston 3 such that the slot 10 is free for the connection means 16 to pass through.
  • the slot 10 is covered outside the area of the piston 3 by a shroud 21, which is also lifted from the slot 10 in the area of the piston 3 and is guided through a space 22 located between the driver 17 and the force output member 18, such that the connecting means 16 can pass through the slot 10 and can be firmly connected to the driver 17, can optionally be made in one piece with the latter.
  • magnetic tapes 23 are inserted into the cylinder tube 1 on both sides of the slot, which magnetically hold the shroud 21 made of a suitable material outside the area of the piston 3.
  • the tape holder can also be made in another known manner.
  • the driver 17 For coupling the driver 17 to the force output member 18, the driver 17 has a transverse groove 24 approximately in the middle of its longitudinal extent on its side facing away from the slot, to each of which a groove-like recess 25 in the force output member 18 adjoins the transverse groove 24.
  • a feather key 26 is inserted such that these with their end portions in the recesses 25 engage; the feather key 26 thus extends transversely to the central plane 14.
  • the feather key 26 together with the transverse groove 24 and the recesses 25 represents a coupling device between the driver 17 and the force output member 18, which, depending on the play of the feather key 26 in the transverse groove 24 or the recesses 25 relative movements and rotations between the driver 17 and the power output member 18 allows.
  • a guide groove 27 and 28 each emanate from the outer surface 11 to the side of the slot 10, which are incorporated into the cylinder tube 1 and which are inclined obliquely downward from the outer surface 11 toward the side surfaces 12 and 13, So run to the middle level 14 diverging.
  • the correspondingly inclined walls of the guide grooves 27 and 28 on the outer surface side represent guide surfaces 29 and 30, respectively, against which corresponding guide surfaces of the force output member 18 are slidably applied; the guide surfaces of the force output element 18 are located on guide strips 31 and 32, which are firmly held on strip-like extensions 33 of the force output element 18 which project obliquely downwards and outwards.
  • the extensions 33 engage in the guide grooves 27, 28 with play on all sides.
  • each of the extensions 33 is adjoined by a section 34 of the force-transmitting member 18, the sections 34 cover the outer surface 11 until their transition into the side surfaces 12 and 13.
  • a guide bar 35 or 36 is vertically displaceable in the sections 34, So slidably inserted parallel to the central plane 14.
  • the guide strips 35 and 36 like the guide strips 31 and 32, extend parallel to the cylinder axis 9.
  • the undersides of the guide strips 35 and 36 lie displaceably on flat edge strip sections of the outer surface 11.
  • Set screws 37, 38 are adjustably screwed to the two sections 34, the set screws 37 and 38 have axial directions which run parallel to the central plane 14 and cross the cylinder axis 9 at right angles.
  • a plurality of adjusting screws 37 and 38 are arranged at uniform intervals in each section 34 over the longitudinal extent of the force output member 18 in the direction of the cylinder axis 9.
  • the screwing of the set screws 37 and 38 to the sections 34 can be designed to be self-locking, but lock nuts can also be provided in a manner not shown for securing the respective adjustment position.
  • the ends of the set screws 37 and 38 on the outer surface lie on support strips 39 on the sides of the guide strips 35 and 36 facing away from the outer surface; the support strips 39 extend parallel to the cylinder axis 9 and, together with the guide strips 35 and 36, are displaceably guided parallel to the central plane 14.
  • the guide strips 35 and 36 thus form, together with the outer surface 11, adjustable guide tracks 11, 35 and 11, 36, respectively, which lie in a plane perpendicular to the central plane 14.
  • the height of the guide strips 35 and 36 can be adjusted such that the guide tracks 29, 31; 30.32; 11, 35 and 11, 36 a desired play possibility or sliding mobility remains, the force output member 18 is thus adjusted in the desired manner relative to the cylinder tube 1 and guided displaceably.
  • the guideways 29, 31 and 30, 32 take over the lateral guidance of the force output member 18 and preclude its lifting up from the cylinder tube 1.
  • Possible side play of the guide strips 35 and 36 relative to the sections 34 have no influence on the quality of the lateral guidance of the power output member 18 relative to the cylinder tube 1.
  • the force output member 18 overlaps the upper sections of the side surfaces 12 and 13 of the cylinder tube 1 with guide legs 40 on the side of the guide tracks 11, 35 and 11, 36.
  • guide grooves 41 and 42 extend from the side surfaces 12 and 13 , which is inclined substantially obliquely in the direction of the outer surface 11 Extend cylinder tube 1.
  • the outer surface walls of these guide grooves 41 and 42 form guide surfaces 43 and 44, respectively, which correspond to the guide surfaces 29 and 30 of the exemplary embodiment according to FIGS. 2 and 3 and against which the guide strips 31 and 32 rest, which are firmly attached to the guide grooves 41 and 42 engaging portions of the guide leg 40 are connected.
  • the embodiment according to FIG. 5 corresponds to the position and arrangement of the guideways 11, 35; 11.36; 31, 43 and 32, 34 completely the exemplary embodiment according to FIG. 4, it thus also has the functions and advantages explained for the first described exemplary embodiment.
  • the exemplary embodiment according to FIG. 5 differs from that according to FIG. 4 only with regard to the adjustment arrangement.
  • the set screws 37 and 38 are screwed to the guide legs 40 with an axial direction perpendicular to the center plane 14.
  • the set screws 37 and 38 act on wedge members 45 which are displaceable in the force output member 18 and which are displaceably supported on the outer surface facing away from the force output member 18 via wedge surfaces 46 and on the outer surface facing the guide strips 35, 36, optionally with intermediate arrangements of corresponding not shown strips corresponding to the support strips 39.
  • the wedge surfaces 46 extend in the direction of distance from the central plane 14 to the outer surface 11 so that when the set screws 37, 38 are screwed in together with the guide strips 35, 36 there is a displacement within the force output member 14 in the direction of the outer surface 11 Experienced.
  • the set screws 37, 38 can be designed to be self-locking or lockable with lock nuts.
  • a wedge adjustment according to Figure 5 can also be provided in the embodiment of Figures 2 and 3.
  • the guide grooves 41, 42 can also be designed in a T-groove-like manner on their side facing away from the outer surface 11, as they are then also used to hold parts to be fastened to the cylinder tube 1, for example end stops for the power output member 14, suitable.
  • FIGS. 1-10 a modification of the exemplary embodiment according to FIGS.
  • the cover band 21 may be expedient to design the cover band 21 with a width that is greater than the distance between the mutually facing mouth edges of the two guide grooves 27 and 28; the space 22 and thus the entire force output member 18 are then designed to be correspondingly wide in order to carry out the shroud 21 through the force take-off member 18.
  • This modification ensures that the shroud 21 not only covers the slot 10 outside the force output member 18, but also the two guide grooves 27 and 28 and thus protects against contamination.
  • a pressure medium cylinder designed in this way is particularly well suited for operation in an environment where there is a risk of contamination.
  • the guide strips 35, 36 do not have to interact directly with the outer surface 11, which extends over the entire width of the cylinder tube, to form the guide tracks 11, 35 and 11, 36; rather, they can also rest on outer surface sections which are vertically offset from the remaining outer surface 11; the vertical offset facilitates the machining of the surface sections of the cylinder tube 1 which cooperate with the guide strips 35, 36.
  • the guide strips 31, 32, 35 and / or 36 can be mounted from an end face of the power output member 18, even if the power output member 18 is already on the cylinder tube 1. This enables a simple replacement of worn guide rails.
  • a piston (3) is only coupled to a force output member (18) for axial force transmission.
  • the force output member (18) has a guide on the cylinder tube (1), which is designed as a mirror image of a central plane (14) through the cylinder axis (9) and the slot of the cylinder tube (1).
  • the guide On both sides of the central plane (14), the guide has two guideways (11.35 and 29.31 or 11.36 and 30.32).
  • One guideway (29, 31 or 30, 32) runs inclined to the central plane (14) within an oblique guide groove (27 or 28) in the cylinder tube (1) and is not adjustable, while the other guideway (11, 35 or 11, 36) runs in or parallel to the outer surface (11) which has the slot and is perpendicular to the central plane (14) and can be adjusted perpendicularly to this outer surface (11).
  • a guide bar (35 or 36) adjustable by means of adjusting screws (37 or 38) perpendicular to the outer surface (11) is provided in the force output member (18).
EP91112327A 1990-08-03 1991-07-23 Vérin à fluide avec cylindre fendu Expired - Lifetime EP0476265B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4024716 1990-08-03
DE4024716A DE4024716A1 (de) 1990-08-03 1990-08-03 Druckmittelzylinder mit laengsgeschlitztem zylinderrohr

Publications (2)

Publication Number Publication Date
EP0476265A1 true EP0476265A1 (fr) 1992-03-25
EP0476265B1 EP0476265B1 (fr) 1994-10-12

Family

ID=6411618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112327A Expired - Lifetime EP0476265B1 (fr) 1990-08-03 1991-07-23 Vérin à fluide avec cylindre fendu

Country Status (4)

Country Link
EP (1) EP0476265B1 (fr)
JP (1) JP3332944B2 (fr)
AT (1) ATE112822T1 (fr)
DE (2) DE4024716A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536799A1 (fr) * 1991-10-11 1993-04-14 Smc Kabushiki Kaisha Vérin sans tige
EP0542211A1 (fr) * 1991-11-11 1993-05-19 Smc Kabushiki Kaisha Vérin sans tige
US5311810A (en) * 1991-11-01 1994-05-17 Smc Kabushiki Kaisha Rodless cylinder
US6336393B1 (en) 1998-07-01 2002-01-08 Parker-Hannifin Corporation Rodless pneumatic cylinder

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2512354B2 (ja) * 1991-10-14 1996-07-03 エスエムシー株式会社 ロッドレスシリンダ
JP2512356B2 (ja) * 1991-11-01 1996-07-03 エスエムシー株式会社 ロッドレスシリンダ
DE69300855T2 (de) * 1992-07-21 1996-11-07 Smc Kk Kolbenstangenloser Zylinder.
DE4400483C2 (de) * 1994-01-11 1996-12-19 Invest Tech Ag Linearantriebszylinder
JPH07217607A (ja) * 1994-02-03 1995-08-15 Smc Corp 負荷の位置決め装置
AT403502B (de) * 1994-11-30 1998-03-25 Hygrama Ag Kolbenstangenloser druckmittelzylinder
JP4587103B2 (ja) 2005-04-19 2010-11-24 Ｓｍｃ株式会社 シリンダ装置のガイド機構
JP7051331B2 (ja) * 2017-08-23 2022-04-11 株式会社ヒラノテクシード シリンダ装置及びそれを用いたウエブの接続装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124915A1 (de) 1981-06-25 1983-01-13 Kaiser, Siegmund H., Ing.(grad.), 7440 Nürtingen "druckmittelzylinder mit einem laengsgeschlitzten endseitig verschlossenen zylinderrohr
EP0157892B1 (fr) 1984-04-10 1987-06-24 Reinhard Lipinski Transporteur linéaire
EP0234033A2 (fr) 1985-12-18 1987-09-02 Tol-O-Matic, Inc. Bride porteuse pour cylindre de travail
DE3802703A1 (de) * 1987-01-30 1988-08-11 Howa Machinery Ltd Kolbenstangenlose zylinderanordnung
EP0280309A1 (fr) 1987-02-27 1988-08-31 Tol-O-Matic, Inc. Cylindre pneumatique et son mécanisme de blocage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124915A1 (de) 1981-06-25 1983-01-13 Kaiser, Siegmund H., Ing.(grad.), 7440 Nürtingen "druckmittelzylinder mit einem laengsgeschlitzten endseitig verschlossenen zylinderrohr
EP0068088B1 (fr) 1981-06-25 1985-02-20 PROMA Produkt- und Marketing-Gesellschaft m.b.H. Vérin à fluide à cylindre fendu et extrémitées fermées
EP0157892B1 (fr) 1984-04-10 1987-06-24 Reinhard Lipinski Transporteur linéaire
EP0234033A2 (fr) 1985-12-18 1987-09-02 Tol-O-Matic, Inc. Bride porteuse pour cylindre de travail
DE3802703A1 (de) * 1987-01-30 1988-08-11 Howa Machinery Ltd Kolbenstangenlose zylinderanordnung
EP0280309A1 (fr) 1987-02-27 1988-08-31 Tol-O-Matic, Inc. Cylindre pneumatique et son mécanisme de blocage

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536799A1 (fr) * 1991-10-11 1993-04-14 Smc Kabushiki Kaisha Vérin sans tige
US5275088A (en) * 1991-10-11 1994-01-04 Smc Kabushiki Kaisha Rodless cylinder
EP0724082A2 (fr) * 1991-10-11 1996-07-31 Smc Kabushiki Kaisha Vérin sans tige
EP0724082A3 (fr) * 1991-10-11 1998-03-11 Smc Kabushiki Kaisha Vérin sans tige
US5311810A (en) * 1991-11-01 1994-05-17 Smc Kabushiki Kaisha Rodless cylinder
EP0542211A1 (fr) * 1991-11-11 1993-05-19 Smc Kabushiki Kaisha Vérin sans tige
US5279207A (en) * 1991-11-11 1994-01-18 Smc Kabushiki Kaisha Rodless cylinder
US6336393B1 (en) 1998-07-01 2002-01-08 Parker-Hannifin Corporation Rodless pneumatic cylinder

Also Published As

Publication number Publication date
DE59103220D1 (de) 1994-11-17
JP3332944B2 (ja) 2002-10-07
EP0476265B1 (fr) 1994-10-12
JPH05133406A (ja) 1993-05-28
ATE112822T1 (de) 1994-10-15
DE4024716A1 (de) 1992-02-06

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