EP0914562A1 - Entrainement lineaire sans tige de piston - Google Patents
Entrainement lineaire sans tige de pistonInfo
- Publication number
- EP0914562A1 EP0914562A1 EP98912309A EP98912309A EP0914562A1 EP 0914562 A1 EP0914562 A1 EP 0914562A1 EP 98912309 A EP98912309 A EP 98912309A EP 98912309 A EP98912309 A EP 98912309A EP 0914562 A1 EP0914562 A1 EP 0914562A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- linear drive
- drive according
- leg
- longitudinal
- 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
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
- F15B15/08—Characterised by the construction of the motor unit
-
- 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 rodless linear drive with a housing which delimits a longitudinally extending housing interior, in which a drive part is arranged to be longitudinally movable and which has a slot-like longitudinal opening which opens into the housing interior and which in the longitudinal direction has one of a lot on each side of the housing flank is flanked, a drive part projecting through the longitudinal opening projecting outward is arranged on the drive part, which is coupled to the outside of the housing by a slide which is guided in a longitudinally movable manner by means of a guide device and supported in the transverse direction in a supported manner is.
- Such a rodless linear drive can be seen, for example, from EP 0 540 015 B1.
- the guide device is arranged on the outside of the housing leg lying at the top in the preferred position of use of the linear drive, which is overlapped by the slide interacting with the guide device.
- an airfoil is provided which serves to fasten the load to be transported.
- the slide is additionally supported by a roller on a support surface arranged on the other housing leg.
- one of the two housing legs is extended in the depth direction of the longitudinal opening beyond this and carries the guide device with the carriage on the side of its extension section facing the other housing leg, this other housing leg being decoupled from the carriage in terms of load.
- EP 0 711 928 A2 already shows a rodless linear drive in which the guide device is arranged on one housing leg in such a way that it lies in the preferred position of use next to the housing interior and the risk of deformation of the housing is reduced.
- the guide device is arranged laterally next to the longitudinal opening with transverse spacing and the slide must necessarily reach over the housing part having the housing interior, so that a considerable overall height is established in the depth direction of the longitudinal opening.
- the configuration according to the invention enables an arrangement in which the housing part having the housing interior and the slide lie next to one another with a low overall height, since a direct connection between the drive part and the slide is possible due to the driver part as a result of the orientation of the longitudinal opening facing the guide device.
- the slide is expediently arranged in a receiving area of the housing which adjoins the longitudinal opening in the depth direction of the longitudinal opening and is delimited on one side by the extension section. In this way, particularly small dimensions can be achieved in the height direction.
- a support surface for attaching a load to be moved is provided, which is oriented essentially parallel to the extension section and which lies next to the short housing leg.
- the wing is arranged substantially at the same height as the outer surface of the short housing leg in order to obtain a particularly flat overall arrangement. It can be provided that the aforementioned outer surface in front of the wing is slightly exceeded to ensure that a large-area load arranged on the wing can project beyond the wing in the transverse direction without being hindered by the housing.
- the guide device extends and extends in the longitudinal direction of the housing
- Extension section provided guide rail and a on
- Carriage provided carriage, wherein the guide body on the guide rail is guided in the longitudinal direction and at the same time supported in the transverse direction.
- This guide device which can be produced with little effort, ensures good longitudinal guidance, which at the same time is suitable for absorbing the transverse forces that occur.
- a roller bearing arrangement for example a ball bearing arrangement
- the frictional forces occurring between the guide body and the guide rail can be greatly reduced, so that the guide body can move freely along the guide rail even under heavy loads.
- the drive part is formed by a piston which can be actuated fluidically, a flexible sealing tape being provided for sealing the longitudinal opening in the region of the inside thereof.
- a piston which can be actuated fluidically, a flexible sealing tape being provided for sealing the longitudinal opening in the region of the inside thereof.
- FIG 1 shows an embodiment of the invention
- Figure 2 shows the embodiment of the linear drive of Figure 1 in cross section along the section line II-II in Figure 1, and
- Figure 3 shows the housing of a further embodiment of the linear drive in front view.
- a rodless linear drive 1 which has a housing 2 which delimits a housing interior 4 running in the longitudinal direction 3 of the housing 2, in which a drive part 5 is arranged so as to be longitudinally movable.
- the drive part 5 is formed by a piston 8, which can be acted upon fluidically and in particular pneumatically, which has two sealing arrangements 9, 10 spaced in the longitudinal direction 3 and thereby divides the housing interior 4 into three length sections 11, 12, 13.
- the length section 12 lying between the two sealing arrangements 9, 10 is always depressurized, while the working spaces 14, 15 formed by the length sections 11, 13 are designed to be pressure-tight.
- the housing interior 4 is closed at its two axial end regions 18, 19 by an end cover 20, 21 inserted in each case.
- fluid connections 22, 23 opening into the working spaces 14, 15 are provided, which in the exemplary embodiment are introduced into the end caps 20, 21.
- the piston 8 and the housing interior 4 have, for example, a circular cross section.
- the housing 2 has a slot-like longitudinal opening 24 opening on the one hand into the housing interior 4 and on the other hand open to the surroundings, which is flanked in the longitudinal direction 3 on both sides by a housing leg 25, 26 formed by a part of the housing 2.
- a flexible sealing tape 31 is provided in the area of the inner side 30 thereof, which seals the housing interior 4 in the area of its two working spaces 14, 15 from the external environment of the housing 2.
- the sealing tape 31 can have a trapezoidal cross section, so that it lies sealingly in the area of the inside 30 of the longitudinal opening 24 that tapers toward the longitudinal opening 24.
- the sealing tape 31 is passed through a channel-like through opening 32 running in the piston 8, so that it is between the two sealing arrangements 9, 10 of the piston 8 from the Inner side 30 of the longitudinal opening 24 is spaced apart.
- the piston 8 has a connecting part 37 to which the driver part 5 is connected.
- the driver part 35 and the drive part 5 formed by the piston 8 are formed in one piece.
- the driver part 35 is firmly connected to the latter.
- the driver part 35 is designed like a web, the end region 38 assigned to the slide 36 being expanded and being fixed to an attachment piece 39 provided on the slide 36.
- the slide 36 is guided such that it can move in the longitudinal direction 3 relative to the housing 2 and is supported in the transverse direction 42.
- the carriage 36 can be moved in the longitudinal direction 3 relative to the housing 2, but the guide device 41 absorbs forces acting on the carriage 36 in the transverse direction 42, so that the carriage 36 is disregarded _ ⁇ _ is immovable in the transverse direction 42 from a possibly still existing slight bearing play.
- One of the housing legs 26 is in the depth direction 45 of the longitudinal opening 24 with an extension section 46 over the
- Extended longitudinal opening 24 and is referred to below as an extended housing leg 26.
- the extension section 46 carries the guide device 41 with the slide 36 on the side 47 facing the other, short housing leg 25.
- the extended housing leg 26 is accordingly composed of a base section 48 opposite the short housing leg 25 and the longitudinal opening 24 in the depth direction 45 extension section 46 adjoining this base section 48.
- the extension portion 46 has a substantially plate-like shape.
- the housing comprises a housing part 4 and the longitudinal opening 24 containing, in cross-section approximately U-like first housing part 27, which is composed of the short housing leg 25 and the base section 48 of the extended housing leg 26, and a second housing part formed by the extension section 46 28
- the design of the elongated housing leg 26 forms a receiving region 51 of the housing 2 for accommodating the slide 36, which adjoins the longitudinal opening 24 in the depth direction 45 of this and the short housing leg 25 and is delimited on one side by the extension section 46.
- the receiving region 51 is accordingly arranged adjacent to both the side 47 of the extension section 46 facing the short leg 25 and the free longitudinal end of the short housing leg 25.
- the short housing limb 25 is decoupled in terms of load from the carriage 36 held and guided on the extension section 46.
- the carriage 36 is not supported on the short housing leg 25, but is arranged at a distance therefrom, so that no deformation forces are exerted on the short housing leg 25 by the carriage 36 possible deformations of the short housing leg 25 can impair the guiding accuracy of the carriage 36.
- a support surface 55 which is used to fasten a load to be moved and is not shown in detail, and is oriented essentially parallel to the extension section 46. It lies in the depth direction 45 next to the short housing leg 25.
- the support surface 55 of the slide 36 practically delimits the receiving space 51 on the side opposite the extension section 46.
- the support surface 55 can be arranged at the same height as the outer surface 56 of the short housing leg 25 or can also be lower and within the receiving area. However, the support surface 55 preferably projects slightly beyond the outer surface 56 in the vertical direction 52 of the linear drive 1, so that loads arranged on the support surface 55 and laterally projecting loads do not touch the short housing leg 25. This in turn prevents 25 that external forces act on the short housing leg.
- the direction which is perpendicular to the depth direction 42 and to the longitudinal direction 3 is referred to as the height direction 52.
- the liner drive is arranged such that the height direction runs vertically and both the inside 47 of the extension section 46 and the support surface 55 and the outside surface 56 of the short housing leg 25 point vertically upward.
- the total weight of a load fixed on the wing 55 acts on the extension section 46, which can be fixed with its underside 91 to a base body 92, which will be explained later.
- the carriage 36 has a further, second wing 58. This is arranged on a on the long side 59 of the slide 36 opposite the short housing leg 25 or the first housing part 27 and extends in the direction of the extension section 46 and is essentially perpendicular to the first Wing 55 aligned. On the wings 55, 58 threaded holes 62 or other fasteners are provided which serve to fasten a load.
- the plate-like sled leg 60 protrudes on the side opposite the first housing part 27 in the depth direction 45 in front of the free end part 61 of the extension section 46 running in the longitudinal direction 3.
- the sled leg 60 thus delimits the receiving area 51 on the side opposite the short housing leg 25.
- the guide device 41 is interposed, for example, between the extension section 46 and the slide 36. It has a guide rail 64 which extends in the longitudinal direction 3 of the housing 2 and is arranged on the extension section 46.
- the guide rail 64 is formed separately with respect to the extension section 46 and is fixed to it by suitable fastening measures.
- a groove-shaped fastening recess 65 running in the longitudinal direction 3 can be introduced in the region of the end part 61 from the side 47 facing the short housing leg 25, the inner free outer end 66 of the extension section 46, which is arranged closer to the first housing part 27 opposite groove flank 67 tapers towards the open side of the fastening recess 65.
- the outer groove flank 68 assigned to the free end 66 of the extension section 46 is formed by an area of the outer wall section 69 running in the longitudinal direction 3 and laterally delimiting the fastening recess 65 in the longitudinal direction 3. Before the guide rail 64 is fastened to the extension section 46, this wall section is aligned approximately at right angles to the groove base 70 of the groove-like fastening recess 65.
- the guide rail 64 In its section assigned to the extension section 46, the guide rail 64 has a fastening section 73 which is contoured like a trapezoid in cross section. After the insertion of the guide rail 64 into the fastening recess 65, the fastening section 73 engages at least partially to to HP 1
- Groove-like recesses 95 provided on the long side 88 of the guide part 78 are located.
- the carriage 36 encompasses the guide device 41 in a rider-like manner, the latter being flanked on one longitudinal side by the carriage leg 60 and on the other longitudinal side by the attachment piece connected to the driver part 35.
- the side 90 of the extended housing leg 26 opposite the guide device 41 can form a fastening side 91 with which the housing 2 can be attached to a base body 92 used for holding.
- the extension section 46 is provided on the inside 47 facing the slide 36 with at least one longitudinal groove 96 which is open to the fastening side 91 via a plurality of openings 97 distributed over its length, fastening screws 93 being able to be passed through the openings 97, which can be screwed into threaded bores of the base body 92 in order to firmly clamp the housing 2 with the outer surface of the elongated housing leg 26 against the base body 92.
- the linear drive has extremely compact dimensions in the above-mentioned height direction 52, it builds extremely flat.
- the first housing part 27 and the slide 36 lie next to one another and essentially at the same height in the transverse direction 42 coinciding with the depth direction 45 of the longitudinal opening 24. Since the longitudinal opening 24 is arranged so that its depth direction 45 coincides with the transverse direction 42 of the housing 2, the outer opening 98 of the longitudinal opening 24, which is located radially on the outside with respect to the housing interior 4, faces the receiving area 51, so that an extremely short and direct driver connection between the drive part 5 and the Schiit to to H P>
- a screw channel 71 can also be integrated into the guide rail 64, which is closed on the circumference and extends in the longitudinal direction of the guide rail 64. It has longitudinal teeth on opposite walls. If the screw channel 71 is drilled on a narrow side, a screw that is used, for example, for fastening can be screwed in, the opposing teeth taking over a thread function.
- FIG. 3 also makes it clear that the housing 2 on the outer surface, in particular of the U-shaped first housing part 27, can be equipped with one or more longitudinal grooves 72, which enable additional parts to be anchored.
- sensors can be fixed therein, which are used to detect the position of the drive part 5.
- FIG. 3 also shows two channels 76 which extend through the first housing part 27 in the longitudinal direction and which are preferably used to guide the pressure medium used to act on the drive part 5.
Landscapes
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
- Motorcycle And Bicycle Frame (AREA)
- Reciprocating Pumps (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Supercharger (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Actuator (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29706493U | 1997-04-11 | ||
DE29706493U DE29706493U1 (de) | 1997-04-11 | 1997-04-11 | Kolbenstangenloser Linearantrieb |
PCT/EP1998/000839 WO1998046889A1 (fr) | 1997-04-11 | 1998-02-13 | Entrainement lineaire sans tige de piston |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0914562A1 true EP0914562A1 (fr) | 1999-05-12 |
EP0914562B1 EP0914562B1 (fr) | 2003-11-05 |
Family
ID=8038805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98912309A Expired - Lifetime EP0914562B1 (fr) | 1997-04-11 | 1998-02-13 | Entrainement lineaire sans tige de piston |
Country Status (8)
Country | Link |
---|---|
US (1) | US6186049B1 (fr) |
EP (1) | EP0914562B1 (fr) |
JP (1) | JPH11514078A (fr) |
KR (1) | KR100289000B1 (fr) |
AT (1) | ATE253690T1 (fr) |
CA (1) | CA2256748C (fr) |
DE (2) | DE29706493U1 (fr) |
WO (1) | WO1998046889A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6435041B1 (en) * | 1998-08-26 | 2002-08-20 | Council Of Scientific & Industrial Research | Device useful for measuring the flow rate of cryogenic liquids flowing through a tube |
DE29817441U1 (de) | 1998-09-30 | 1998-12-10 | Festo AG & Co, 73734 Esslingen | Linearantrieb |
JP3546422B2 (ja) * | 1999-02-23 | 2004-07-28 | 豊和工業株式会社 | ベースと駆動装置の連結構造及びリニアアクチュエータ |
EP1182359B1 (fr) * | 2000-08-23 | 2003-01-15 | FESTO AG & Co | Actionneur linéaire sans tige et son carter |
DE102004012408A1 (de) * | 2004-03-13 | 2005-09-29 | Dirk Sasse | Linearantrieb mit einem pneumatischen, hydraulischen oder elektrischen Kolben-Zylinder-Antrieb |
DE102006016946B4 (de) * | 2006-04-11 | 2014-02-06 | Robert Bosch Gmbh | Linearführungseinrichtung |
DE102006019547B3 (de) * | 2006-04-27 | 2007-10-25 | Bosch Rexroth Teknik Ab | Druckmittelzylinder mit einem vom Kolben entkoppelten Verfahrelement |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE804632C (de) * | 1949-07-19 | 1951-04-26 | Brown Brothers & Co Ltd | Zylinder- und Kolbendurchbildung |
US4664020A (en) * | 1981-06-25 | 1987-05-12 | Proma Produkt-Und Marketing Gesellschaft M.B.H. | Piston-cylinder structure |
DE3504061A1 (de) * | 1985-02-07 | 1986-08-07 | Werner Jacob | Linearlagersystem und verfahren zur herstellung solcher systeme |
SE464534B (sv) * | 1987-11-11 | 1991-05-06 | Bo Granbom | Bromsanordning vid en anordning foer linjaer roerelse |
DE4111202C2 (de) * | 1991-04-06 | 1995-06-08 | Bosch Gmbh Robert | Druckmittelbetätigte Lineareinheit |
JP2575245B2 (ja) * | 1991-11-01 | 1997-01-22 | エスエムシー株式会社 | ロッドレスシリンダ |
JPH05187439A (ja) * | 1992-01-13 | 1993-07-27 | Nippon Seiko Kk | 横押し構造を有するリニアガイド装置 |
DE4206751A1 (de) * | 1992-03-04 | 1993-09-09 | Festo Kg | Linearantrieb |
DE4226604A1 (de) * | 1992-08-11 | 1994-02-17 | Knorr Bremse Ag | Linearantrieb mit Klemmschienen und Bremseinheiten |
SE510396C2 (sv) * | 1992-10-08 | 1999-05-17 | Ckd Corp | Kolvstångslös cylinder |
US5555789A (en) * | 1995-03-22 | 1996-09-17 | Tol-O-Matic, Inc. | Linear motion device |
JP3011084B2 (ja) | 1995-12-27 | 2000-02-21 | 豊和工業株式会社 | 直線作動機 |
-
1997
- 1997-04-11 DE DE29706493U patent/DE29706493U1/de not_active Expired - Lifetime
-
1998
- 1998-02-13 JP JP10543397A patent/JPH11514078A/ja active Pending
- 1998-02-13 CA CA002256748A patent/CA2256748C/fr not_active Expired - Fee Related
- 1998-02-13 US US09/194,191 patent/US6186049B1/en not_active Expired - Fee Related
- 1998-02-13 WO PCT/EP1998/000839 patent/WO1998046889A1/fr active IP Right Grant
- 1998-02-13 AT AT98912309T patent/ATE253690T1/de active
- 1998-02-13 DE DE59810076T patent/DE59810076D1/de not_active Expired - Lifetime
- 1998-02-13 EP EP98912309A patent/EP0914562B1/fr not_active Expired - Lifetime
- 1998-02-13 KR KR1019980708979A patent/KR100289000B1/ko not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9846889A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1998046889A1 (fr) | 1998-10-22 |
CA2256748A1 (fr) | 1998-10-22 |
DE59810076D1 (de) | 2003-12-11 |
JPH11514078A (ja) | 1999-11-30 |
ATE253690T1 (de) | 2003-11-15 |
CA2256748C (fr) | 2005-06-21 |
EP0914562B1 (fr) | 2003-11-05 |
KR100289000B1 (ko) | 2001-05-02 |
DE29706493U1 (de) | 1997-07-03 |
US6186049B1 (en) | 2001-02-13 |
KR20000010838A (ko) | 2000-02-25 |
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