EP0987445A1 - Dispositif d'entraínement et de guidage pour mouvoir une charge - Google Patents

Dispositif d'entraínement et de guidage pour mouvoir une charge Download PDF

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Publication number
EP0987445A1
EP0987445A1 EP99116316A EP99116316A EP0987445A1 EP 0987445 A1 EP0987445 A1 EP 0987445A1 EP 99116316 A EP99116316 A EP 99116316A EP 99116316 A EP99116316 A EP 99116316A EP 0987445 A1 EP0987445 A1 EP 0987445A1
Authority
EP
European Patent Office
Prior art keywords
drive
piston
guide device
cylinder
rolling element
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Withdrawn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
EP99116316A
Other languages
German (de)
English (en)
Inventor
Rolf Weberruss
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.)
Festo SE and Co KG
Dowaldwerke Adolph Dowald GmbH and Co KG
Original Assignee
Festo SE and Co KG
Dowaldwerke Adolph Dowald GmbH and Co KG
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 Festo SE and Co KG, Dowaldwerke Adolph Dowald GmbH and Co KG filed Critical Festo SE and Co KG
Publication of EP0987445A1 publication Critical patent/EP0987445A1/fr
Withdrawn legal-status Critical Current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
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1471—Guiding means other than in the end cap
    • 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 drive and guide device for a load to be moved, with one in a pressure medium cylinder driven by pressure medium, rodless Drive piston, at least one through a longitudinal slot in the cylinder wall to the outside projecting power transmission part is associated with a the longitudinal slot in the cylinder wall axially on both sides of the power transmission part sealing, flexible sealing tape and with a load-bearing and / or the piston leading, arranged in the housing of the pressure medium cylinder Rolling element arrangement.
  • the advantage of the arrangement according to the invention is in particular in that in the housing of the pressure cylinder only a single longitudinal channel is required, namely the cylinder bore itself. This leads to a substantial more compact design. Because the drive piston or its Rolling element arrangement absorbs the load and opposes it supports the cylinder wall, are external load or force-absorbing guides are no longer required. It there is therefore no longer any danger that an external Leadership transfers forces to the drive piston that impair its function. After all, there is only one slot penetration required in the housing of the pressure cylinder, in Contrary to the two required slot bushings in the state of the art. The construction of the power transmission part this simplifies considerably. About that in addition, the entire assembly is easier and cheaper.
  • the rolling element arrangement expediently has a large number of wheels rolling on the cylinder wall, rollers and / or balls.
  • the Rolling element arrangement several axially arranged one behind the other Pairs of wheels or castors whose axes of rotation are vertical to the direction of movement of the drive piston and perpendicular to the direction of force of those acting on the piston Force are arranged.
  • the rolling elements of the rolling element arrangement are in corresponding Recesses of the drive piston or one with this connected bearing arrangement rotatably and protrude from these recesses in those places where the drive piston is loaded by the load against the Cylinder wall presses. This will be a cheap one Force absorption through a relatively small number of rolling elements reached.
  • the rolling element arrangement advantageously has tilting moments Way at least one in the drive piston or one connected to this bearing arrangement rotatably mounted Supporting rolling element, which is on a to the direction of force opposite force acting on the drive piston Rolls the point on the cylinder wall.
  • the rolling element arrangement is advantageously between the both sealing the drive piston on both sides Piston sealing areas arranged.
  • the Rolling element arrangement also two interconnected areas have the bearing arrangement, each of which Area of the two-part power transmission part arranged is.
  • The is preferably at the two end regions Bearing arrangement for the rolling element arrangement, one piston sealing area each the drive piston arranged so that a symmetrical modular system that can be assembled as required Order is present.
  • the at least one connected to the drive piston Power transmission part can be in an advantageous embodiment designed as a suspension device for the load be and protrude vertically downwards from the longitudinal slot.
  • a curtain or a sliding wall or window arrangement can be attached pneumatically along a long distance can be moved.
  • FIGS. 1 to 4 is a rodless drive piston 10 in a cylinder chamber designed as a cylinder bore 11 of an elongated pressure medium cylinder 12 pneumatically movable, in principle also a hydraulic Actuation is possible.
  • Fig. 1 is only the right one End region of the pressure medium cylinder 12 shown, and the drive piston 10 is in the right Stop position on the right cylinder cover 13.
  • a first pressure medium connection 14 in the central region of the Cylinder cover 13 is used to move the Drive piston 10 to the left (according to the representation of Fig. 1), and a second pressure medium connection 15 at the top
  • the area of the cylinder cover 13 is parallel to the cylinder space 11 in the housing 15 of the pressure medium cylinder 12 guided pressure line 17 with the not shown connected to the second end region of the cylinder space 11 and serves to move the drive piston 10 in the opposite direction, i.e. to the right.
  • both pressure medium connections 14, 15 on the same Cylinder cover 13 may be arranged.
  • the pressure medium cylinder 12 is a so-called slot cylinder formed, that is, the cylinder space 11 over its entire length with a longitudinal slot 18 connected to the outside outside of the pressure medium cylinder 12.
  • a flexible sealing tape 19 which in the two cylinder end caps 13 is anchored, and that the longitudinal slot 18 to the cylinder chamber 11 axially on both sides of a power transmission part 20 seals that with the drive piston 10 is connected and through the longitudinal slot 18 extends outwards.
  • the sealing tape 19 sliding through Guide channels 21 of the drive piston 10 out and runs in part along the power transmission part 20 opposite back, as shown in Fig. 1 is.
  • the drive piston 10 has a in the central area two-part bearing arrangement 22 for as rollers or wheels 23 trained rolling elements, which is also in two parts Power transmission part 20 on the two-part Bearing arrangement 22 is fixed.
  • a piston seal 24 provided piston sealing region 25, that is connected to the power transmission part 20.
  • the wheels 23 are in corresponding slot recesses 26 the bearing assembly 22 arranged.
  • the eight wheels 23 of the Embodiments are alternating according to FIGS. 3 and 4 45 ° to the vertical in the opposite direction Sloping directions and one behind the other in the longitudinal direction arranged.
  • the vertical direction corresponds to FIG. 3 the direction of force by a not shown Load applied to the drive piston 10, the Swiveling of the wheels 23 always with respect to the direction of force takes place so that the wheels 23 symmetrical to Support the force on the inner wall of the cylinder chamber 11 can. They only stick out on one Side out of the slot recesses 26 on which the Support should take place.
  • roller bearing 27 has a roller bearing 27 and is circumferentially with a rubber-like or plastic-like soft tread 28 provided to the cylinder wall not to damage.
  • the roller bearings 27 are each on one in a transverse bore 29 to the slot recess 26 arranged bolts 30 stored.
  • Support wheel 31 rotatably mounted, corresponding to the wheels 23 is constructed and stored so that the same or equivalent Provide components with the same reference numerals are.
  • This support wheel 31 protrudes against the direction of force, 2 above, from the drive piston 10 or the respective piston sealing area 25 and possibly takes occurring tilting moments.
  • These training wheels 31 becomes the guide of the drive piston 10 in the cylinder space 11 improved.
  • the number of support wheels 31 also be higher, also inclined arrangement is possible. It is also possible to use such support wheels 31 alternatively or in the area of the bearing arrangement 32 to attach additionally.
  • the two piston sealing areas 25 each have one Concentric blind bore 32 towards the free end, which in Mouth area is provided with an annular seal 33.
  • These blind holes 32 serve in a manner known per se for end position damping.
  • the drive piston 10 reaches one of its two end positions, intervenes shortly before concentric, tubular, on the respective cylinder cover 13 attached attenuator 34 in the Blind bore 32 a.
  • the air it contains can pass through escape a throttle device, not shown, so that a dampening effect occurs.
  • the sealing tape 19 seals the longitudinal slot 18 from the inside forth, that is, from the side of the cylinder space 11. It has a trapezoidal cross section for this purpose, which corresponds to the Shape of the slot opening pointing towards the cylinder space 11 is adjusted.
  • this longitudinal slot 18 in a manner known per se also by an external Sealing tape 35 sealed to prevent contamination can get inside.
  • This outer Sealing tape 35 is similar in the two Cylinder end caps 13 fixed and is in the area of Drive piston 10 through corresponding channels 36 through passed through this. In the exemplary embodiment runs this outer sealing tape 35 essentially between the Bearing arrangement 22 and the power transmission part 20th
  • the bearing arrangement 2 consists of two Areas 22a and 22b, which are connected via a connecting link 37 are interconnected. Each of these areas 22a and 22b is with a portion 20a and 20b of the two-part Power transmission part 20 connected.
  • the burden is very elongated, for example a curtain, a door, a Partition or the like. So a very long connecting link 37 may be provided so that the two areas 22a and 22b of the bearing arrangement 22 or the two piston sealing areas 25 are far apart and a total of one very long "piston" is formed.
  • Fig. 4 is only one half of the drive piston in perspective 10 shown.
  • the two Point piston sealing areas 25 to the outside.
  • Execution of the bearing assembly 22 becomes a second Piston sealing area 25 added to the arrangement according to FIG. 4.
  • the power transmission part 20 is for hanging attachment a load.
  • About lateral and / or frictional forces between the power transmission part 20 and the boundary walls to prevent the longitudinal slot 18 can in Area of this longitudinal slot 18 or outside one Sliding or rolling bearing guidance can be provided, which in the exemplary embodiment is not shown. Can also such warehouse management may be required if the Direction of force of the load exerted by the load to be moved Force does not pass through the longitudinal slot 18.
  • the housing 16 of the pressure cylinder 12 with mounting holes 42 and longitudinal grooves 43 provided.
  • the mounting holes 42 serve for example for fastening the cylinder cover 13, while the longitudinal grooves 43 for fastening the pressure cylinder 12 itself and / or for the attachment of Sensor elements or the like serve.
  • Additional longitudinal channels 44 can be used to carry lines or print media serve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
EP99116316A 1998-09-17 1999-08-19 Dispositif d'entraínement et de guidage pour mouvoir une charge Withdrawn EP0987445A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19842594 1998-09-17
DE19842594A DE19842594A1 (de) 1998-09-17 1998-09-17 Antriebs- und Führungseinrichtung für eine zu bewegende Last

Publications (1)

Publication Number Publication Date
EP0987445A1 true EP0987445A1 (fr) 2000-03-22

Family

ID=7881278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99116316A Withdrawn EP0987445A1 (fr) 1998-09-17 1999-08-19 Dispositif d'entraínement et de guidage pour mouvoir une charge

Country Status (3)

Country Link
US (1) US6401593B1 (fr)
EP (1) EP0987445A1 (fr)
DE (1) DE19842594A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1022472A3 (fr) * 1999-01-22 2001-08-08 Hygrama Ag Système d'actionnement et de guidage combiné pour une charge mobile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB478427A (en) * 1936-05-18 1938-01-18 Colin Campbell Mitchell Improvements in and relating to devices for accelerating aircraft for launching purposes
DE2943506A1 (de) * 1979-10-27 1981-05-07 W. Schlafhorst & Co, 4050 Mönchengladbach Kombination zylinder-kolben
US4838147A (en) * 1988-01-26 1989-06-13 Grigory Grishchenko Pressure fluid actuator
US5590580A (en) * 1994-02-03 1997-01-07 Smc Corporation Loading positioning apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1525544A1 (de) * 1965-10-21 1970-01-08 Berg Lennart Gustaf Rollende Dichtung zwischen einer beweglichen und einer ortsfesten Flaeche
DE1982379U (de) * 1966-04-22 1968-03-28 Kurt Dipl Ing Stoll Foerdervorrichtung zum transportieren des foerdergutes zwischen einer ausgangsstellung und gegebenen end- oder zwischenstellungen.
US4485728A (en) * 1981-10-12 1984-12-04 Bando Kiko Co., Ltd. Reciprocating machine
US4704949A (en) * 1983-07-15 1987-11-10 Robert Ogg Piston
US4852465A (en) * 1985-12-18 1989-08-01 Tol-O-Matic, Inc. Carrier bracket for power cylinder
US4813341A (en) * 1987-02-27 1989-03-21 Tol-O-Matic, Inc. Pneumatic cylinder and means for powering a second pneumatic unit
DE4332547A1 (de) * 1993-09-24 1995-03-30 Duewag Ag Antriebs- und Führungssystem für eine zu bewegende Last

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB478427A (en) * 1936-05-18 1938-01-18 Colin Campbell Mitchell Improvements in and relating to devices for accelerating aircraft for launching purposes
DE2943506A1 (de) * 1979-10-27 1981-05-07 W. Schlafhorst & Co, 4050 Mönchengladbach Kombination zylinder-kolben
US4838147A (en) * 1988-01-26 1989-06-13 Grigory Grishchenko Pressure fluid actuator
US5590580A (en) * 1994-02-03 1997-01-07 Smc Corporation Loading positioning apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1022472A3 (fr) * 1999-01-22 2001-08-08 Hygrama Ag Système d'actionnement et de guidage combiné pour une charge mobile

Also Published As

Publication number Publication date
US6401593B1 (en) 2002-06-11
DE19842594A1 (de) 2000-03-23

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