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
  • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
  • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
  • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
  • F15B13/08—Assemblies of units, each for the control of a single servomotor only
  • F15B13/0803—Modular units
• • 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
  • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
  • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
• • 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
  • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
  • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
  • F15B15/065—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type
• • 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
  • F15B15/227—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having an auxiliary cushioning piston within the main piston or the cylinder end face
• • 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
  • F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke
• • 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
  • F15B15/26—Locking mechanisms
  • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions

Definitions

• the invention relates to a rotating or swiveling device with a housing with at least one working piston accommodated in the housing, which can be acted upon by pressure medium, and with a swiveling part rotatably driven by the working piston via a rotary coupling and rotatably mounted in the housing.
• the invention also relates to a connection module for such a device.
• Such rotating or pivoting devices are known for example from DE 33 06 480 C2.
• the working piston is mounted in a cylinder incorporated in the housing. Machining the surface of the cylinder is relatively complex.
• the cylinder surface must have a very precise machining and high quality in order to ensure a long service life of the device.
• the surface of the cylinder is difficult or only partially accessible due to the pivoting part and its storage.
• the present invention is therefore based on the object of proposing a rotating or swiveling device which, on the one hand, is inexpensive to manufacture and, on the other hand, has a high accuracy of the cylinder in which the working piston is displaceably mounted.
• This object is achieved according to the invention with a rotating or swiveling device of the type mentioned in the introduction in that the working piston is displaceably mounted in at least one cylinder tube on the housing side.
• This has the advantage that the cylinder tube as a separate component with high precision Internal dimensions can be provided.
• Such cylinder tubes are unproblematic in their handling and processing. Very precise inner surfaces against which the working piston rests can be achieved. This results in a long service life and a precision pivoting device.
• the at least one cylinder tube can be screwed into the housing by means of a thread. This makes interchangeability of the cylinder tube possible. Due to wear and tear, the cylinder barrel can be replaced and the life and turning or
• Swivel device can be increased without having to edit the housing.
• each pressure side of the piston is slidably mounted in a separately designed cylinder tube.
• the two cylinder tubes are then arranged along an axis and identical cylinder tubes are advantageously used.
• Such a design has the advantage that the area that lies between the two pressure sides of the piston is accessible, for example for realizing the rotary coupling.
• the rotary coupling is advantageously designed in such a way that it comprises a coupling section on the piston side, in the manner of a pinion rod, and a pinion on the pivoting part side that meshes with the coupling section.
• the coupling section is preferably located between the two pressure sides.
• a pinion-rod-like coupling section with associated pinion another type of rotary coupling, for example a friction coupling, is also possible according to the invention.
• the rotating or swiveling device comprises at least one connection module for arrangement on the free end face of the at least one cylinder tube.
• a connection module for example, a cover, an extension part, a damping part or other parts that contribute to the realization of a special working behavior of the pivoting or rotating device.
• the free end face of the at least one cylinder tube comprises an external and / or internal thread for screwing on the connection module.
• the connection module can be screwed on or unscrewed easily and safely.
• connection module on the radially outer side is sealed against the housing in such a way that an air chamber is formed which is connected to the respective pressure chamber. This ensures a safe air flow regardless of the screw-in depth of the connection module.
• the connection module preferably has at least one recess on the respective inner side extending in the axial direction.
• This recess for air guidance can be designed, for example, in the form of a longitudinal groove.
• the recess preferably comprises a recess running radially on the cylinder tube end face, in which the air can pass from the radially outer side into the radially inner pressure chamber. Sealing means, in particular sealing rings, are provided for sealing.
• pivoting or rotating device should be expandable to implement special pivoting tasks.
• connection module is provided which is suitable for being arranged on the free end of a cylinder tube which receives a working piston of the rotating or swiveling device.
• connection module certain turning or pivoting properties of the device can be realized.
• connection module advantageously provides an external or internal thread for screwing onto the free end of the cylinder tube. It can be screwed onto the cylinder barrel in a simple manner and without expensive tools.
• connection module can be designed, for example, as a cover part for closing the free end of the cylinder tube. It is also conceivable that the connection module can be designed as a stop part for the axial stroke limitation of the working piston. The stop part can also include the function of a cover that closes the free end of the cylinder tube. It is also possible according to the invention that the connection module comprises damping means for damping the striking of the working piston. Such damping means can be, for example, cushions, cushions or the like provided on the inside of the connection module facing the working piston.
• connection module can be screwed onto the cylinder tube at different depths, the stroke of the working piston, and thus the angle of rotation of the swivel part, being variable via the screw-in depth of the connection module.
• fixing means are provided on the connection module and / or on the housing for fixing the connection module in a predeterminable axial position.
• connection module can be designed differently. It is conceivable that the connection module is made in one piece. It is also conceivable that the connection module comprises a sleeve which can be screwed onto the cylinder tube and a closure part which is screwed to the sleeve. It can be provided here that the sleeve is adjustable in the axial direction relative to the cylinder tube and / or the closure is adjustable in the axial direction relative to the sleeve.
• connection module is in at least two positions, one axially inner and one axially outer Position, slidable stop part, wherein the stop part is lockable at least in its inner position.
• An intermediate position is reached in the axially inner, locked position. If the working piston moves against the stop part in this intermediate position, the pivoting part is pivoted into only one intermediate position. After releasing the lock, the working piston moves to its starting position; the pivoting part also pivots into its starting position.
• connection module preferably has means for screwing on and / or unscrewing the connection module.
• Such means can be, for example, inside corner sections, outside hex sections, handrails for manual actuation or the like. This ensures simple and quick adjustment or screwing and / or unscrewing of the connection module.
• FIG. 1 shows a longitudinal section through a first embodiment of a pivoting device
• Figure 2 shows a longitudinal section through a second embodiment of a pivoting device
• FIG. 3 shows a front view of the swivel device according to FIG. 1 or FIG. 2;
• FIG. 4 shows a partial longitudinal section through a third embodiment of a pivoting device.
• the swivel device 10 shown in FIG. 1 has a housing 12 in which two working pistons 14, 16 are accommodated in a longitudinally displaceable manner.
• the working pistons 14, 16 are rotationally coupled to a swivel part 20 via a rotary coupling 18.
• the two working pistons 14, 16 are mounted in longitudinally displaceable manner in the cylinder tubes 22, 24, 26, 28 arranged on the housing along their longitudinal axis in the direction of the double arrows 30.
• the two working pistons 14, 16 are each designed to be pressurized on both sides.
• pressure chambers 32, 34 and 36, 38 are provided.
• the pressure chambers can be connected to pressure accumulators or pressure reliefs via supply and discharge lines, not shown.
• the working pistons 14, 16 have between their respective pressure sides 40, 42, 44, 46 on the mutually facing sides a coupling rod-shaped coupling section 48 and 50.
• the two sections 48, 50 mesh a pinion 52 on the swivel part side, which is rotatably mounted about the swivel axis 54 of the swivel part 20 or the pinion 52.
• the rotary coupling 18 designed in this way ensures that when the pressure chambers 32 and / or 38 are acted upon, the pivoting part 20 is pivoted counterclockwise in the view shown. When pressure is applied to the pressure chambers 34 and / or 36, the pivoting part 20 is pivoted in the clockwise direction.
• the cylinder tubes 22, 24, 26, 28 are designed in such a way that when the working pistons 16, 18 are at maximum strokes, the outer surfaces of the working pistons are securely guided in the cylinder tubes.
• the working pistons 14, 16 have corresponding sealing elements 56 in the area of their pressure sides 40, 42, 44, 46.
• each working piston 14, 16 is axially displaceably mounted in a continuous cylindrical tube.
• openings are then to be provided in the cylinder tubes, so that the pinion 52 can be rotationally coupled to the corresponding coupling sections 48, 50.
• another rotary coupling can be provided, for example a non-positive friction coupling.
• the individual cylinder tubes 22, 24, 26, 28 have external threads 58 on their inner side facing the housing, via which they are screwed into the housing 12.
• the housing 12 has stop edges 60 against which the respective end faces of the cylinder tubes 22, 24, 26, 28 abut in their final assembly position.
• connection modules 62, 64 are provided on the free end faces of the cylinder tubes, which are located outside the housing 12.
• the connection modules 62 are cover parts for closing the cylinder tubes 22, 28.
• the cover parts 62 can be screwed onto the free end faces of the cylinder tubes 22, 28.
• the cover parts 62 have an internal thread and the cylinder tubes 22, 28 have an external thread 66.
• connection modules 64 are each formed in two parts and have a sleeve 72 and a sleeve 72 screwed closure part 74. Of course, it can be provided that the connection module 64 is also provided as a one-piece component.
• the inside of the closure part 74 serves as a stop for the pressure sides 42 and 46 of the working pistons 14 and 16, respectively.
• damping means 76 are provided in the respective working piston 14, 16, which dampen one in the axial direction relative to the respective working piston 14, 16 include slidably mounted stop rod 78.
• the free end 80 of the respective stop rod 78 consequently strikes against the inside of the closure part 74 and interceptively absorbs the working piston 14, 16 moving in the direction of the respective closure part 74.
• connection modules 64 can be screwed to different depths via corresponding threads on the external threads 66 on the respective cylinder tubes 24, 28, the stroke of the respective working piston 14, 16, and thus the angle of rotation of the pivoting part 20, being changeable via the screw-in depth of the connection modules 64.
• connection modules 62, 64 - or the sleeves 72 and the cover parts 64 - have a circumferential groove with a sealing ring 68 on their respective radially outer side.
• the sealing rings 68 act sealingly against radially inner cylindrical surfaces 82 of the housing 12 which extend in the axial direction. Together with the sleeves 72 and the cover parts 62, the cylindrical surfaces 82 form air guiding chambers 84 which can be connected via connections 86 to pressure lines, not shown.
• connection modules 62, 64 For air guidance to the respective pressure chambers 32, 34, 36, 38, the connection modules 62, 64 have at least one recess 88 on their respective axially extending inner side, which extends to the respective cylinder tube end face facing the connection module 62, 64, in which the recesses 88 can in particular be designed as axial grooves.
• the recesses 88 can comprise additional cutouts running radially on the cylinder tube end faces.
• air can consequently reach the respective recess 88 into the respective pressure chambers 32, 34, 36, 38 from the connections 86 via the air guiding chambers 84.
• a safe air flow is ensured regardless of the screw-in depth of the respective connection module 62, 64.
• the position of the housing-side connections 86 is not changed with different screw-in depths.
• the swivel device 90 shown in FIG. 2 essentially corresponds to the swivel device 10 according to FIG. 1. Corresponding components have the same reference numerals.
• the swivel device 90 according to FIG. 2 provides connection modules 92 which have sleeves 72 which extend relatively long in the axial direction.
• the pivoting angle of the pivoting part 20 can be varied over a wide range.
• the connection modules 92 can limit the stroke of the working pistons 14, 16 more than the connection modules 64 according to the swivel device 10 according to FIG.
• the locking means 100 comprise a locking pin 102 which is held in the housing 12 and has a eccentric head and a clamping part 106 which is penetrated by the locking pin 102.
• the eccentric head of the locking pin 102 is seated in a cylinder depression 104 of the clamping part 106.
• the clamping part 106 has two clamping surfaces 108 resting on the respective lateral surfaces of the connection modules 64, 92.
• the eccentric head of the locking pin 102 acts against the wall of the cylinder depression 104 of the clamping part 106, which fixes the connection modules 64, 92 via its clamping surfaces 108.
• Locking pin 102 is rotated 1/4 to 1/2 turn to loosen the lock.
• the connection modules 64, 92 are thus fixed in a simple, yet very effective manner.
• the locking pin can have a radially circumferential groove into which a retaining pin running transversely to the longitudinal axis of the locking pin 102 engages in such a way that the locking pin 102 is rotatable but is not displaceable in its axial direction.
• the swivel device 110 shown in FIG. 4 has a housing 12 corresponding to the swivel devices 10 and 90 with corresponding components, which corresponds to the swivel devices 10, 90 according to FIGS. 1 and 2 bear the corresponding reference numerals.
• connection modules 112 are provided in the swivel device 10, in each of which a stop part 114 which can be displaced in two positions is provided and which can be locked in its axially inner position. This ensures that the working pistons 14, 16 and thus the swivel part 20 can be started in a predetermined intermediate position.
• the stop part 114 facing the pressure side 42 is in the locked intermediate position.
• connection modules 112 each have a sleeve 116 accommodated in a common additional housing 113, in which the piston-like stop part 114 is axially displaceably mounted.
• a pressure chamber 118 is provided on the side of the stop part 114 facing away from the respective working piston 14, 16.
• the pressure chamber 118 is pressurized or depressurized via a pressure connection 119.
• the air is guided into or out of the pressure space 118 via a circumferential annular groove 123, which is located radially on the outside of the respective sleeve 116, and through openings connected to the groove 123, in particular in the form of bores 125.
• the stop part 114 When the pressure chamber 118 is pressurized, the stop part 114 is moved into the intermediate position. For this purpose, the stop part 114 moves in the direction of the respective working piston 14, 16 until it strikes with its collar-like stop 132 against a stop 134 on the sleeve side. Due to the pressurization of the pressure chamber 118, a locking piston 120, which is axially displaceably mounted on the inside of the stop part 114, then moves in the direction of the associated working piston 14, 16 against the spring force of a compression spring 122 for locking balls 128 connect. In the starting position, the locking balls 128 lie partly in the receptacles 126, partly in receiving openings 129 provided on the stop part 114 and extending in the radial direction. The walls of the regions of the stop part 114 surrounding the receiving openings 129 have approximately half the ball diameter. A plurality of locking balls 128, which are arranged at equal distances from one another, are preferably provided over the circumference of the stop part.
• the balls 128 When moving into the locking position, the balls 128 are positively guided radially outward from their receptacles 126 via the guide bevels 124 into locking receptacles 130 provided on the inside of the sleeve 116.
• the locking receptacles 130 extend approximately half a ball diameter in radial directions.
• the locking receptacles 130 can either be designed as individual receptacles or as a single circumferential, annular groove-like receptacle.
• the geometries of the receptacles 126, the locking balls 128, the receiving openings 129 and the locking receptacles 130 are such that, in the locked intermediate position of the respective working piston 14, 16 or the damping means 76, forces acting axially on the respective stop part 114 via the locking balls 128 into the sleeve 116 and from the sleeve via the screw connection of the sleeve to the housing 12 into the housing 12.
• the locked intermediate position is maintained as long as the pressure chamber 118 is pressurized. If the pressure chamber 118 is depressurized, the locking piston 120 is first displaced axially outward via the compression spring 122. As a result, the locking balls 128 fall into the receptacles 126 Moving the working piston 14, 16 against the stop part 114, the stop part 114 together with the locking piston 120 and locking balls 128 is carried axially outward until the stop part 114 has reached its starting position. The pivoting part 20 is pivoted into the starting position.
• connection modules 62, 64, 92 or 112 can be provided.
• the connection modules can be changed with little effort and can be done with simple tools.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Actuator (AREA)
• Pivots And Pivotal Connections (AREA)
• Forklifts And Lifting Vehicles (AREA)
• Jib Cranes (AREA)
• Component Parts Of Construction Machinery (AREA)
• Joints Allowing Movement (AREA)
• Connections Arranged To Contact A Plurality Of Conductors (AREA)
• Supports Or Holders For Household Use (AREA)
• Brushes (AREA)

Applications Claiming Priority (2)

Publications (3)

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ID=33103403

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Family Cites Families (13)

• 2003
  • 2003-04-11 DE DE10317282A patent/DE10317282B4/de not_active Expired - Lifetime
• 2004
  • 2004-04-13 CA CA002521886A patent/CA2521886A1/fr not_active Abandoned
  • 2004-04-13 AT AT04726989T patent/ATE346244T1/de active
  • 2004-04-13 DE DE502004002120T patent/DE502004002120D1/de not_active Expired - Lifetime
  • 2004-04-13 EP EP04726989A patent/EP1651871B8/fr not_active Expired - Lifetime
  • 2004-04-13 WO PCT/EP2004/003895 patent/WO2005061906A1/fr active IP Right Grant
  • 2004-04-13 KR KR1020057019335A patent/KR100830890B1/ko not_active IP Right Cessation
  • 2004-04-13 US US10/551,095 patent/US7228784B2/en not_active Expired - Lifetime

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