EP1134431A1 - Antriebsvorrichtung - Google Patents
Antriebsvorrichtung Download PDFInfo
- Publication number
- EP1134431A1 EP1134431A1 EP01105621A EP01105621A EP1134431A1 EP 1134431 A1 EP1134431 A1 EP 1134431A1 EP 01105621 A EP01105621 A EP 01105621A EP 01105621 A EP01105621 A EP 01105621A EP 1134431 A1 EP1134431 A1 EP 1134431A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic
- drive
- drive device
- hydraulic pump
- pump
- 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
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Classifications
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- 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
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
- F15B9/04—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by varying the output of a pump with variable capacity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/12—Arrangements for positively actuating jaws using toggle links
- B25B5/122—Arrangements for positively actuating jaws using toggle links with fluid drive
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- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/003—Systems with load-holding valves
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- 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
- F15B15/18—Combined units comprising both motor and pump
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- 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
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
- F15B7/005—With rotary or crank input
- F15B7/006—Rotary pump input
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20561—Type of pump reversible
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/27—Directional control by means of the pressure source
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
- F15B2211/3051—Cross-check valves
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
- F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
- F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves
- F15B2211/5059—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves using double counterbalance valves
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/51—Pressure control characterised by the positions of the valve element
- F15B2211/513—Pressure control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/56—Control of an upstream pressure
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/625—Accumulators
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6651—Control of the prime mover, e.g. control of the output torque or rotational speed
Definitions
- the present invention relates to the field of drive devices, which can be activated by supplying energy Have drive from which a driving force is tapped can be.
- Such a drive device goes out, for example the German utility model No. 299 03 825.4, where they described as part of a toggle clamp device becomes. There it receives one that can be activated by compressed air Pneumatic actuator with associated electrically actuated Control valves to determine the drive direction of the pneumatic actuator to be able to pretend. Alternatively, there would also be a hydraulic drive conceivable, the one with electrically operated servo valves is equipped to influence the drive state. While with pneumatic drives due to the compressibility the actuating medium is usually a larger technical one Effort is needed to make exact positioning and slow Being able to master movements predominates in hydraulic drives the leakage problem and the high maintenance costs to ensure secure hose connections and one high quality hydraulic medium.
- a drive device with a closed hydraulic circuit, one through hydraulic Medium operated hydraulic drive and a feed and discharge of the hydraulic medium with respect to the hydraulic drive causing hydraulic pump contains, for Actuation of the hydraulic pump, an electric motor is provided and the activation of the hydraulic drive through the operating state the hydraulic pump is determined.
- Suitable setting means are preferably present, by the variable specification of the pump speed of the hydraulic pump determining motor speed of the electric motor is controllable or regulatable. It can also be a possibility be given to specify speed ramps to accelerate and braking one by the hydraulic drive to make the load to be moved uniform and jerky To avoid movements.
- the drive device is the hydraulic drive with at least one with a force-tapping part motion-coupled drive piston provided, the two working chambers fluid-tight separated from each other, both via a hydraulic circuit are connected to the hydraulic pump, the Feeding hydraulic fluid into one working chamber with the simultaneous leakage of hydraulic fluid the other Chamber of Labor goes hand in hand with the Shift the drive piston in the desired manner.
- the Hydraulic pump to either a left-handed or right-handed Rotational movement can be driven - for example by changing the direction of rotation of the electric motor or under Interposition of a changeover gear, can hydraulic medium either in one or the other of the two working chambers be fed in accordingly the direction of movement of the drive piston.
- the two hydraulic circuits of the drive device included expediently one unblockable check valve each, which is usually a fluid flow from the Hydraulic pump allows for hydraulic drive and in the opposite direction prevented, each check valve by the in the other hydraulic circuit from the hydraulic pump maintained pressure is unlockable to fluid flow from the hydraulic drive back to the hydraulic pump.
- each check valve by the in the other hydraulic circuit from the hydraulic pump maintained pressure is unlockable to fluid flow from the hydraulic drive back to the hydraulic pump.
- Another, particularly advantageous equipment of the drive device results if in at least one and preferably both hydraulic circuits a bias valve is turned on, the fluid connection from the associated The working chamber towards the hydraulic pump is normally shut off and only releases if and as long as in the outflow-side working chamber a predetermined opening pressure has built up.
- the preload valve thus becomes a Biasing of the one located in the outflow-side working chamber Hydraulic medium causes that does not immediately replace can be, if in the feed-side working chamber Pressure increase takes place. Only when the pressure increase in the feed-side working chamber is so strong that in the upstream working chamber the pressure builds up as Opening pressure, the minimum pressure can be reached Flush out previously clamped hydraulic medium.
- the drive piston can also be operated with a high dynamic range brake the executed movement very quickly and precisely by simply the pressure applied on the inflow side by appropriate Change in the operating state of the hydraulic pump varies becomes. It can, in turn, be operated without servo-controlled hydraulic valves a very exact positioning of the drive piston or a force-tapping part coupled to this movement achieved even at high operating speeds become.
- the design of the preload valves is expediently so met that the opening pressure causing the opening in Range between 10% and 90% of the maximum of the hydraulic pump generated operating pressure is.
- the preferred printing area is between 30% and 50% of the maximum mentioned Actuation pressure.
- the preload valves make it a not inconsiderable one Prestressing effect brought about. It can be the opening pressure expediently by means of suitable setting means specify variable to easily adapt to the to be able to carry out the respective application.
- the bias valve in question expediently has a movable shut-off element, which can be replaced by the desired one Opening pressure corresponding spring force into the fluid connection interrupted closed position is biased and that of the hydraulic fluid of the working chamber on the outflow side is applied against the spring force in the opening direction.
- the pressure in the outflow-side working chamber rises results in at least the opening pressure Opening force that overcome the spring force and that Shutoff member can switch to an open position.
- the preload valve therefore preferably has a digital switching behavior.
- Each bias valve is conveniently one in the direction opening to the hydraulic drive and locking in the opposite direction Check valve connected in parallel, the corresponding Direction of rotation of the hydraulic pump feeding the Hydraulic medium bypassing the assigned working chamber of the preload valve.
- volumes of the working chambers can be any hydraulic circuit connected to a hydraulic fluid expansion tank be a movable one exposed to atmospheric pressure Owns the wall.
- At least the hydraulic drive is expedient, the Hydraulic pump, the hydraulic circuits and the electric motor combined into one unit (drive unit), where only electrical interface means for energy supply may be present to operate the Serve electric motor.
- On hydraulic interface means can be dispensed with because of the closed hydraulic circuit be designed as an independent component of the drive unit can.
- the drive device as part of a particular as Toggle clamping device trained clamping device executed, in which the power take-off part of the hydraulic drive with a swiveling clamping arm of the clamping device is in drive connection.
- This configuration is particularly recommended in connection with one to one Drive unit summarized drive device because this enables very compact dimensions and use alternative to a purely fluid or electrically operated Clamping device allowed. Designs can also be found here are obtained in which the cross-sectional dimensions of the Drive unit are equal to or less than those of the bearing head of the tensioning device used for swivel mounting.
- Figures 1 and 2 show a knee lever tensioning device trained tensioner 1, the essential Components a combined into a structural unit and therefore Drive device 2, which can be designated as drive unit 3 and a clamping unit firmly connected to the drive unit 3 4 contains.
- the circuit design of the drive device 2 or drive unit 3 is only schematic in Figure 1 reproduced, wherein the Figure 3 is a circuit diagram reproduces a particularly advantageous structure.
- the drive device 2 contains one by hydraulic Medium actuable hydraulic drive 5, which in the embodiment is designed as a linear drive, with the corresponding Field of application of the drive device 2, however, for example can also be designed as a rotary drive.
- the hydraulic drive 5 has a housing 6 in which there is an elongated piston receiving space 7 that one Includes drive piston 8. This is part of an im Frame of a drive movement marked by a double arrow 12 linearly displaceable output unit 13 which at Embodiment another one formed by a piston rod Includes elongated power take-off part 14, which with the drive piston 8 firmly connected and thus motion-coupled is.
- the force tapping member 14 extends in the direction of the Drive movement 12, it being on the front end face 15 of the housing 6 protrudes and on its outside the housing 6 located section has force tapping means 16, a connection with components to be moved or Enable facilities.
- the drive piston 8 is located either directly in the Housing 6 or in a sleeve inserted into the housing 6, whereby he sealed the piston receiving space 7 in two Working chambers divided, the following for better distinction referred to as first and second working chambers 17, 18 become.
- the drive device 2 further contains a hydraulic pump 22 known structure, which preferably with a designed as a DC motor electric motor 23 in Drive connection is established.
- the electric motor 23 can be selected operate with counterclockwise and clockwise rotation, accordingly the hydraulic pump 22 optionally in one of the two possible directions of rotation.
- the hydraulic pump is therefore reversible, which is expediently a Volume flow pump, the speed of which is directly the Movement speed of the drive piston determined.
- the electric motor 23 is equipped with adjusting means 24, through which both the direction of rotation and the motor speed of the electric motor 23 can be set to accordingly also the pump speed of the hydraulic pump 22 to be able to adjust variably, which is expediently used as a rotary pump is executed. A speed control or too Speed control is therefore possible.
- speed ramps can be set by the setting means 24 if necessary be generated such that a jerky acceleration or braking one by the drive piston 8 load to be moved is prevented.
- the hydraulic pump 22 and the electric motor 23 expediently into a fixed structural unit summarized with the housing 6 of the hydraulic drive 5.
- the hydraulic pump 22 is on flanged the housing 6, the electric motor 23 in turn is attached to the hydraulic pump 22. It is possible also a separate attachment of the two components to the housing 6 as well as an at least partial integration of a or both components in the housing 6.
- the drive unit 3 has a slim design, are the electric motor 23 and the hydraulic pump 22 in Area of the rear end face 25 of the housing 6 installed.
- the hydraulic pump 22 is via two parallel and for better differentiation than first and second hydraulic circuits 26, 27 designated hydraulic circuits hydraulic connected to the hydraulic drive 5.
- the hydraulic pump 22 has two pump connections 28, 29, the first (28) via the first hydraulic circuit 26 with the first working chamber 17 is connected and the second (29) via the second Hydraulic circuit 27 with the second working chamber 18 of the Hydraulic drive 5 is connected.
- the hydraulic medium is each according to the direction of rotation within the closed hydraulic circuit promoted that it was in the first or second working chamber 17, 18 is fed, at the same time hydraulic medium due to the moving drive piston 8 from the other working chamber 18, 17 back to the hydraulic pump 22 is ousted.
- the Output unit 13 for a drive movement 12 in two each other cause opposite directions, the rod-shaped force tapping part 14 in the exemplary embodiment either extends from the housing 6 or enters this. It is essential that the activation of the hydraulic drive 5 and preferably also in the activated hydraulic drive 5 pressure build-up or volume flow alone is determined by the operating state of the hydraulic pump. In order to stop the output unit 13 in a certain position, the hydraulic pump 22 is stopped.
- the pressure build-up in the feed-side working chamber and accordingly the speed of displacement the output unit 13 is determined by the pump speed determined by using the setting means 24 after Requirements can be specified variably.
- the speed of the activated Drive piston 8 of the hydraulic drive 5 exclusively from the volume flow of the hydraulic medium in the hydraulic Circuits 26, 27 determined.
- the two hydraulic circuits 26, 27 are common connected to a hydraulic fluid expansion tank 32, absorbs the excess fluid and missing Refills fluid.
- the two hydraulic circuits are there 26, 27 with a variable-volume compensation space 33 in Fluid connection, one the other hand, atmospheric pressure exposed movable wall 34.
- the latter can for example formed by a piston or a membrane his.
- the hydraulic fluid reservoir 32 expediently also a component the drive unit 3 and can be integrated into the housing 6 or attached to its rear end face 25 his.
- the drive device 2 With regard to the energy supply required for operation from the outside is the drive device 2 as a mono-energetic Device executed. Due to the internally closed Hydraulic circuit requires no supply and / or discharge hydraulic actuation energy, so that the drive device 2 for energy supply exclusively via electrical Has connection means 35, which for the operation of the electric motor 23 required electrical energy is fed becomes.
- electrical Has connection means 35 This can be, for example, plug connection means act or, as in the embodiment, to an outgoing one that leads to an electrical energy source Connection cable.
- a separate additional electrical connection means can also be used Connection of the drive device 2 to an external electronic Control device take place, which also position detection signals can take into account which depending on the position of the output unit 13 are generated.
- the drive device 2 can be in this way if necessary integrate a manufacturing or assembly system, its operations can be controlled electronically.
- the for specifying the operating state of the hydraulic pump 22nd Serving adjustment means 24 can, if necessary, apart from the Drive device 2 can be placed and over corresponding Interact signal connections with the electric motor 23. All required for the operation of the drive device 2 Signals can also be transmitted wirelessly.
- the hydraulic drive 5 is preferably a displacement measuring system 61 assigned that the position of the drive piston 8 or one with this motion-coupled component can capture to the electric motor 23 as a function of certain positions to be able to control as required.
- the position detection signals are fed to the setting means 24, which is expediently equipped with a position controller are.
- the two hydraulic circuits 26, 27 are in the embodiment integrated in the housing 6 of the hydraulic drive 5, where it is only schematically shown in dash-dotted lines in Figure 1 are indicated, while their preferred structure in detail is shown in Figure 3.
- Both hydraulic circuits expediently each contain an unlockable check valve 36a, 36b, that is Check valve that unlock under certain circumstances leaves so that it is also in the normally locked Flow direction allows a fluid passage.
- the unlockable check valves 36a, 36b are thus in the respective hydraulic circuit 26, 27 incorporated that they typically fluid flow from hydraulic pump 22 to the connected working chamber 17, 18 and prevent in the opposite direction.
- the unlockable check valve 36a, 36b of a respective hydraulic circuit 26, 27 however via a dashed line in FIG Unlocking channel 37a, 37b with that channel section of each another hydraulic circuit 27, 26 in fluid communication, which can be unlocked between the hydraulic pump 22 and the one there Check valve is located.
- Hydraulic pump 22 operated, for example, that in the first hydraulic circuit 26, a pressure build-up takes place and through the associated releasable check valve that opens 36a feeding hydraulic fluid into the first working chamber 17 takes place, causes the pressure built up simultaneously unlocking and opening the unlockable Check valve 36b of the second hydraulic circuit 27, see above that hydraulic medium displaced from the second working chamber 18 can flow back to the hydraulic pump 22.
- the corresponding one The process results when the conveying direction is reversed Hydraulic pump 22.
- unlockable check valves 36a, 36b results the advantage that the output unit 13 when deactivated Hydraulic pump 22 held in its current position is because that in the working chambers 17, 18 and in the then go all the way to the unlockable check valves 36a and 36b in the hydraulic circuits 26, 27 fluid is firmly locked. To hold a specific one Position of the output unit 13 is therefore not Energy needed.
- the pressure-dependent valves which can also be referred to as pressure relief valves opening bias valves 38a, 38b cause the Output unit 13 in addition to that actually to be moved Last a braking load is imposed, which it can only by appropriate To overcome pressure generation of the hydraulic pump 22 applies in order to set the output unit 13 in motion. If one neglects the force tapping part 14 external load to be actuated and the friction that occurs, so would then only in the described embodiment set a movement of the output unit 13 when by the hydraulic medium fed is over 50 bar Pressure is built up.
- the output unit 13 becomes by appropriate pressure build-up shifted at high speed, so the braking process very easy by reducing the pump power dominate because of the fluid bias in the outflow Working chamber prevailing opening pressure one counterforce acting as braking force.
- the bias valves each contain a movable shut-off member 42, which by a Opening pressure corresponding spring force into the fluid connection normally pre-tensioned closed position is.
- the spring force is, for example, by a mechanical Spring device 43 and / or by a gas spring delivered.
- the spring preload can expediently be variable adjust to influence the opening pressure and accordingly an adaptation to the current application of the To enable drive device 2.
- the shutoff member 42 is the hydraulic fluid on the outflow side Working chamber against the spring force in the opening direction applies and shifts the shut-off element to the open position, if the actuating force resulting from the opening pressure is greater than the spring force.
- the interpretation is expedient taken so that a digital switching behavior is present and the preload valve suddenly reaches its maximum Open position switches.
- unlockable check valve 36a, 36b with the parallel connected Bias and check valves 38a, 45a; 38b, 45b connected in series.
- the preload valve is located here 38a, 38b expediently in that channel section, which is between the unlockable check valve 36a, 36b and the hydraulic drive 5 extends.
- the hydraulic drive 5 are the Hydraulic pump 22, the hydraulic circuits 26, 27, the Electric motor 23 and the hydraulic fluid reservoir, if any 32 combined to form the drive unit 3.
- Protective housing 46 must be covered, which prevents the ingress of contaminants and shields moisture.
- the drive device 2 can in principle be any Use drive purposes, with different types of the hydraulic drive 5 would be conceivable, for example also rodless designs. Particularly advantageous is the use of the drive device 2 in a design combined into a drive unit 3 in Connection with a tensioning device 1, being on the front Face 15 of the housing 6, the clamping unit 4 mentioned above is scheduled.
- the latter can be attached to the housing as shown 6 flanged bearing head 47 included, in which the end of the output unit 13 protruding from the housing 6 immersed and which carries a pivotable clamping arm 48.
- the force tapping means 16 are the output unit 13 via a toggle lever mechanism 49 with the tension arm 48 motion-coupled that from the linear movement of the output unit 13 a rotating or swiveling movement of the clamping arm 48 is derived.
- This has in the embodiment a rotatably connected pivot lever 50, on which at a to the pivot axis 52 of the clamping arm 48 spaced bearing 53 a tab-like intermediate member 54 is articulated, that via a further bearing 55 with the force tapping means 16 is articulated.
- the force tapping part 14 is with its outer End section on guide means 56 guided longitudinally and at the same time in the transverse direction with respect to the pivot axis 52 supported.
- the guide means 56 can, for example, from one or more, in particular groove-like guideways be educated.
- the swivel arm 48 By actuating the hydraulic drive 5, the swivel arm 48 according to double arrow 57 for a pivoting movement around the Swivel axis 52 are caused to selectively in a To position the clamping position or a release position. In the clamping position, he can on a not shown Work in the workpiece in order to clamp it so tight that it can be edited.
- the tensioning device 1 is suitable especially for clamping workpieces to be welded.
- the drive unit 3 has a particularly narrow design. It is possible in particular the cross-sectional dimensions to select the drive unit 3 so that it is equal to or less are those of the bearing head 47.
- the direction of movement of the output unit 13 is determined solely by the direction of rotation of the DC motor specified, as well as the lifting speed of the Output unit 13 a function of the speed of the DC motor or the pump speed is.
- the only Variable during the operation of the drive device 2 is in the embodiment, the operating state of the hydraulic pump or their speed.
- the embodiment can be summarized again that it is preferably a drive device with a hydraulic drive operated by a hydraulic medium 5, which is a hydraulic pump 22 for supplying the hydraulic medium is assigned.
- the pressure build-up in the activated Hydraulic drive 5 is through adjustable pressure relief valves (Preload valves 38a, 38b), which are pressure-dependent are designed to be opening, as well as parallel to these Check valves 45a, 45b controlled.
- the speed of the drive piston 8 of the activated hydraulic drive 5 is determined exclusively by the volume flow of the hydraulic Medium in the hydraulic circuits 26, 27 certainly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Seal Device For Vehicle (AREA)
- Valve Device For Special Equipments (AREA)
- Vehicle Body Suspensions (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
Description
- Figur 1
- in schematischer Darstellung und teilweise im Längsschnitt eine Spannvorrichtung, die mit einer bevorzugten Ausgestaltung der erfindungsgemäßen Antriebsvorrichtung ausgestattet ist,
- Figur 2
- die Anordnung aus Figur 1 in einer Rückansicht mit Blickrichtung gemäß Pfeil II, und
- Figur 3
- den elektro-hydraulischen Schaltplan der bei der Spannvorrichtung gemäß Figuren 1 und 2 bevorzugt zum Einsatz gelangenden Antriebsvorrichtung.
Claims (26)
- Antriebsvorrichtung, mit einem geschlossenen Hydraulikkreis, der einen durch hydraulisches Medium betätigbaren Hydraulikantrieb (5) und eine die Zufuhr und Abfuhr des hydraulischen Mediums bezüglich dem Hydraulikantrieb (5) veranlassende Hydraulikpumpe (22) enthält, wobei zur Betätigung der Hydraulikpumpe (22) ein Elektromotor (23) vorgesehen ist und die Aktivierung des Hydraulikantriebes (5) durch den Betriebszustand der Hydraulikpumpe (22) bestimmt wird.
- Antriebsvorrichtung nach Anspruch 1, gekennzeichnet durch einen allein in Abhängigkeit von der Drehzahl der Hydraulikpumpe (22) erfolgenden Druckaufbau unterschiedlicher Betätigungsdrücke im Hydraulikantrieb (5).
- Antriebsvorrichtung nach Anspruch 1 oder 2, gekennzeichnet durch Einstellmittel (24) zur variablen Vorgabe der die Pumpendrehzahl der Hydraulikpumpe (22) bestimmenden Motordrehzahl des Elektromotors (23).
- Antriebsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass durch die Einstellmittel (24) Drehzahlrampen erzeugbar sind, die eine gleichförmige Antriebsbewegung des Hydraulikantriebes (5) hervorrufen.
- Antriebsvorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass dem Hydraulikantrieb (5) ein Wegmeßsystem zugeordnet ist, dessen Signale den Einstellmitteln (24) zugeführt werden, welche hierbei zweckmäßigerweise einen Positionsregler enthalten.
- Antriebsvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Elektromotor (23) als drehzahlgesteuerter oder drehzahlgeregelter Antriebsmotor ausgebildet ist.
- Antriebsvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Drehzahl der Hydraulikpumpe (22) die Bewegungsgeschwindigkeit des Antriebskolbens (8) des Hydraulikantriebes bestimmt.
- Antriebsvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Hydraulikpumpe als reversierbare Volumenstrompumpe ausgebildet ist.
- Antriebsvorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Hydraulikantrieb (5) mindestens einen mit einem Kraftabgriffsteil (14) bewegungsgekoppelten Antriebskolben (8) aufweist, der zwei Arbeitskammern (17, 18) fluiddicht voneinander abteilt, die beide über jeweils eine Hydraulikschaltung (26, 27) mit der Hydraulikpumpe (22) verbunden sind, wobei das Einspeisen von Hydraulikfluid in die eine Arbeitskammer (17, 18) mit dem gleichzeitigen Ausströmen von Hydraulikfluid aus der anderen Arbeitskammer (18, 17) einhergeht.
- Antriebsvorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Hydraulikpumpe (22) wahlweise zu einer linksdrehenden oder einer rechtsdrehenden Rotationsbewegung antreibbar ist, um Hydraulikmedium wahlweise in die eine oder andere der beiden Arbeitskammern (17, 18) einzuspeisen und dementsprechend die Bewegungsrichtung des Antriebskolbens (8) vorzugeben.
- Antriebsvorrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass beide Hydraulikschaltungen (26, 27) ein entsperrbares Rückschlagventil (36a, 36b) enthalten, das normalerweise eine Fluidströmung von der Hydraulikpumpe (22) zum Hydraulikantrieb (5) zulässt und in Gegenrichtung verhindert, wobei jedes Rückschlagventil (36a, 36b) durch den in der jeweils anderen Hydraulikschaltung von der Hydraulikpumpe (22) aufrecht erhaltenen Druck entsperrbar ist, um eine Fluidströmung vom Hydraulikantrieb (5) zurück zur Hydraulikpumpe (22) zu ermöglichen.
- Antriebsvorrichtung nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, dass mindestens eine Hydraulikschaltung (26, 27) ein Vorspannventil (38a, 38b) enthält, das die Fluidverbindung von der betreffenden Arbeitskammer (17, 18) hin zur Hydraulikpumpe (22) nur freigibt, wenn und solange sich in der ausströmseitigen Arbeitskammer ein vorbestimmter Öffnungsdruck aufgebaut hat.
- Antriebsvorrichtung nach Anspruch 12, dadurch gekennzeichnet, dass die Auslegung so getroffen ist, dass der Öffnungsdruck im Bereich zwischen 10% und 90% und dabei vorzugsweise im Bereich zwischen 30% und 50% des von der Hydraulikpumpe (22) maximal erzeugbaren Betriebsdruckes liegt.
- Antriebsvorrichtung nach Anspruch 12 oder 13, gekennzeichnet durch Einstellmittel (44) zur veränderlichen Vorgabe des Öffnungsdruckes.
- Antriebsvorrichtung nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass das Vorspannventil (38a, 38b) ein bewegliches Absperrglied (42) aufweist, das durch eine dem Öffnungsdruck entsprechende Federkraft in eine die Fluidverbindung unterbrechende Schließstellung vorgespannt ist und das vom Hydraulikfluid der ausströmseitigen Arbeitskammer entgegen der Federkraft im Öffnungssinne beaufschlagt wird.
- Antriebsvorrichtung nach einem der Ansprüche 12 bis 15, dadurch gekennzeichnet, dass jede Hydraulikschaltung (26, 27) ein Vorspannventil (36a, 36b) enthält.
- Antriebsvorrichtung nach einem der Ansprüche 12 bis 16 in Verbindung mit Anspruch 11, dadurch gekennzeichnet, dass in einer betreffenden Hydraulikschaltung (26, 27) das entsperrbare Rückschlagventil (36a, 36b) und das Vorspannventil (38a, 38b) in Reihe geschaltet sind.
- Antriebsvorrichtung nach einem der Ansprüche 12 bis 17, dadurch gekennzeichnet, dass jedem Vorspannventil (38a, 38b) ein in Richtung zum Hydraulikantrieb (5) öffnendes und in Gegenrichtung sperrendes Rückschlagventil (45a, 45b) parallel geschaltet ist.
- Antriebsvorrichtung nach einem der Ansprüche 9 bis 18, dadurch gekennzeichnet, dass jede Hydraulikschaltung (26, 27) mit einem Hydraulikfluid-Ausgleichsbehältnis (33) verbunden ist.
- Antriebsvorrichtung nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet, dass zumindest der Hydraulikantrieb (5), die Hydraulikpumpe (22), die gegebenenfalls vorhandene Hydraulikschaltungen (26, 27) und der Elektromotor (23) zu einer Antriebseinheit (3) zusammengefasst sind.
- Antriebsvorrichtung nach Anspruch 20, dadurch gekennzeichnet, dass die Antriebseinheit (3) zur Energieeinspeisung ausschließlich über elektrische Anschlussmittel (35) verfügt.
- Antriebsvorrichtung nach einem der Ansprüche 1 bis 21, als Bestandteil einer insbesondere als Kniehebel-Spannvorrichtung ausgebildeten Spannvorrichtung (1), wobei das Kraftabgriffsteil (14) des Hydraulikantriebes (5) mit einem schwenkbeweglichen Spannarm (48) in Antriebsverbindung steht.
- Antriebsvorrichtung nach Anspruch 22 in Verbindung mit Anspruch 20 oder 21, dadurch gekennzeichnet, dass stirnseitig an der Antriebseinheit (3) ein den Schwenkarm (48) tragender Lagerungskopf (47) angeordnet ist.
- Antriebsvorrichtung nach Anspruch 23, dadurch gekennzeichnet, dass die Querschnittsabmessungen der Antriebseinheit (3) gleich oder geringer sind als diejenigen des Lagerungskopfes (47).
- Antriebsvorrichtung nach einem der Ansprüche 1 bis 24, dadurch gekennzeichnet, dass der Hydraulikantrieb (5) ein Drehantrieb ist.
- Antriebsvorrichtung nach einem der Ansprüche 1 bis 25, dadurch gekennzeichnet, dass der Hydraulikantrieb (5) ein Linearantrieb ist.
Applications Claiming Priority (2)
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DE10013194A DE10013194B4 (de) | 2000-03-17 | 2000-03-17 | Antriebsvorrichtung |
DE10013194 | 2000-03-17 |
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EP1134431A1 true EP1134431A1 (de) | 2001-09-19 |
EP1134431B1 EP1134431B1 (de) | 2005-05-11 |
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EP01105621A Expired - Lifetime EP1134431B1 (de) | 2000-03-17 | 2001-03-07 | Antriebsvorrichtung |
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EP (1) | EP1134431B1 (de) |
AT (1) | ATE295482T1 (de) |
DE (2) | DE10013194B4 (de) |
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DE102022204211A1 (de) * | 2022-04-29 | 2023-11-02 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Betreiben eines hydraulischen Systems mit mindestens einem hydraulisch betätigbaren Steller |
CN115140673A (zh) * | 2022-06-20 | 2022-10-04 | 西安方元明鑫精密机电制造有限公司 | 一种电液一体化电动缸 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1776139A1 (de) * | 1968-09-27 | 1971-09-30 | Tullio Levrini | Hydraulische Antriebsvorrichtung |
DE2929442A1 (de) * | 1979-07-20 | 1981-01-29 | Elmeg | Elektrohydraulisches stellgeraet |
DE3637404A1 (de) * | 1986-11-03 | 1987-11-26 | Bornemann & Haller Kg | Stellantrieb |
US5125324A (en) * | 1988-02-10 | 1992-06-30 | Daia Industry Co. Ltd. | Portable hydraulically operated device incorporating automatic drain valve |
DE4137103A1 (de) * | 1991-11-12 | 1993-05-13 | Elmeg | Elektrohydraulisches geraet |
DE4207764A1 (de) * | 1992-03-11 | 1993-09-16 | Hugo Junkers Werke Gmbh | Hydraulik-werkzeug |
DE4302889A1 (de) * | 1993-02-02 | 1994-08-04 | Emg Eltma Hebezeuge Oschersleb | Elektro-hydraulische Betätigungsvorrichtung |
DE19535691C1 (de) * | 1995-09-26 | 1997-01-23 | Rothenberger Werkzeuge Masch | Hydraulisch angetriebenes Handwerkzeug |
JPH09170601A (ja) * | 1995-12-20 | 1997-06-30 | Tokimec Inc | 液圧閉回路 |
FR2752446A1 (fr) * | 1996-08-13 | 1998-02-20 | Thomson Csf | Procede de commande optimise d'un actionneur electrofluidique et actionneur le mettant en oeuvre |
DE29903281U1 (de) * | 1999-02-24 | 1999-07-01 | Festo AG & Co, 73734 Esslingen | Kniehebel-Spannvorrichtung |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1916266A1 (de) * | 1968-05-21 | 1970-10-08 | Bbc Brown Boveri & Cie | Elektrohydraulisches Stellgeraet |
US4696163A (en) * | 1983-03-28 | 1987-09-29 | Rexa Corporation | Control valve and hydraulic system employing same |
DE3919823C3 (de) * | 1989-06-14 | 1998-04-09 | Mannesmann Ag | Spritzgießmaschine mit hydraulischen Verbrauchern |
DE4335328A1 (de) * | 1993-10-18 | 1995-04-20 | Battenfeld Gmbh | Hydraulisches Betriebssystem für Spritzgießmaschinen |
DE19517582C2 (de) * | 1995-05-05 | 1998-08-20 | Mannesmann Ag | Antrieb für die Einspritz- und Plastifiziereinheit einer Kunststoffspritzgießmaschine |
JP3668543B2 (ja) * | 1995-12-18 | 2005-07-06 | 株式会社トキメック | 液圧閉回路における回路圧保持装置 |
DE19603012C1 (de) * | 1996-01-18 | 1997-09-04 | Mannesmann Ag | Plastifizier- und Einspritzeinheit einer Kunststoffspritzgießmaschine |
US6092290A (en) * | 1996-12-24 | 2000-07-25 | Rescue Technology, Inc. | Rescue tool |
-
2000
- 2000-03-17 DE DE10013194A patent/DE10013194B4/de not_active Expired - Fee Related
-
2001
- 2001-03-07 DE DE50106158T patent/DE50106158D1/de not_active Expired - Fee Related
- 2001-03-07 EP EP01105621A patent/EP1134431B1/de not_active Expired - Lifetime
- 2001-03-07 AT AT01105621T patent/ATE295482T1/de not_active IP Right Cessation
- 2001-03-14 US US09/808,438 patent/US6543223B2/en not_active Expired - Fee Related
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1776139A1 (de) * | 1968-09-27 | 1971-09-30 | Tullio Levrini | Hydraulische Antriebsvorrichtung |
DE2929442A1 (de) * | 1979-07-20 | 1981-01-29 | Elmeg | Elektrohydraulisches stellgeraet |
DE3637404A1 (de) * | 1986-11-03 | 1987-11-26 | Bornemann & Haller Kg | Stellantrieb |
US5125324A (en) * | 1988-02-10 | 1992-06-30 | Daia Industry Co. Ltd. | Portable hydraulically operated device incorporating automatic drain valve |
DE4137103A1 (de) * | 1991-11-12 | 1993-05-13 | Elmeg | Elektrohydraulisches geraet |
DE4207764A1 (de) * | 1992-03-11 | 1993-09-16 | Hugo Junkers Werke Gmbh | Hydraulik-werkzeug |
DE4302889A1 (de) * | 1993-02-02 | 1994-08-04 | Emg Eltma Hebezeuge Oschersleb | Elektro-hydraulische Betätigungsvorrichtung |
DE19535691C1 (de) * | 1995-09-26 | 1997-01-23 | Rothenberger Werkzeuge Masch | Hydraulisch angetriebenes Handwerkzeug |
JPH09170601A (ja) * | 1995-12-20 | 1997-06-30 | Tokimec Inc | 液圧閉回路 |
FR2752446A1 (fr) * | 1996-08-13 | 1998-02-20 | Thomson Csf | Procede de commande optimise d'un actionneur electrofluidique et actionneur le mettant en oeuvre |
DE29903281U1 (de) * | 1999-02-24 | 1999-07-01 | Festo AG & Co, 73734 Esslingen | Kniehebel-Spannvorrichtung |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31) * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1355030A2 (de) * | 2002-04-16 | 2003-10-22 | DORMA GmbH + Co. KG | Hydraulischer Drehflügelantrieb |
EP1355030A3 (de) * | 2002-04-16 | 2009-03-11 | DORMA GmbH + Co. KG | Hydraulischer Drehflügelantrieb |
EP2503086A3 (de) * | 2011-03-22 | 2014-07-16 | Reinhold Schulte | Antriebskreis-Baugruppe für eine Fahrzeugtür |
US11028861B2 (en) | 2013-05-31 | 2021-06-08 | Eaton Intelligent Power Limited | Hydraulic system and method for reducing boom bounce with counter-balance protection |
CN103410808A (zh) * | 2013-07-17 | 2013-11-27 | 丽水中德石化设备有限公司 | 一种本安型防火防爆电液执行器及其控制方法 |
CN103410808B (zh) * | 2013-07-17 | 2015-07-15 | 丽水中德石化设备有限公司 | 一种本安型防火防爆电液执行器及其控制方法 |
CN105849421A (zh) * | 2013-11-14 | 2016-08-10 | 伊顿公司 | 用于减少动臂跳动的先导控制机构 |
US10344783B2 (en) | 2013-11-14 | 2019-07-09 | Eaton Intelligent Power Limited | Pilot control mechanism for boom bounce reduction |
DE202014006621U1 (de) * | 2014-08-19 | 2015-11-20 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Aktuatorsystem |
US11204048B2 (en) | 2017-04-28 | 2021-12-21 | Eaton Intelligent Power Limited | System for damping mass-induced vibration in machines having hydraulically controlled booms or elongate members |
US11209028B2 (en) | 2017-04-28 | 2021-12-28 | Eaton Intelligent Power Limited | System with motion sensors for damping mass-induced vibration in machines |
CN109366385A (zh) * | 2018-10-18 | 2019-02-22 | 九江精密测试技术研究所 | 一种大偏载轴系电液混合驱动五轴复合转台 |
Also Published As
Publication number | Publication date |
---|---|
US20010022083A1 (en) | 2001-09-20 |
DE50106158D1 (de) | 2005-06-16 |
US6543223B2 (en) | 2003-04-08 |
DE10013194A1 (de) | 2001-09-27 |
EP1134431B1 (de) | 2005-05-11 |
DE10013194B4 (de) | 2005-02-24 |
ATE295482T1 (de) | 2005-05-15 |
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