EP3956587A2 - Ventilantriebsvorrichtung für ein druckventil - Google Patents
Ventilantriebsvorrichtung für ein druckventilInfo
- Publication number
- EP3956587A2 EP3956587A2 EP20786314.3A EP20786314A EP3956587A2 EP 3956587 A2 EP3956587 A2 EP 3956587A2 EP 20786314 A EP20786314 A EP 20786314A EP 3956587 A2 EP3956587 A2 EP 3956587A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- section
- drive device
- pressure
- housing
- 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.)
- Pending
Links
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- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000009420 retrofitting Methods 0.000 claims description 4
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- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
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- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- RZTAMFZIAATZDJ-UHFFFAOYSA-N felodipine Chemical compound CCOC(=O)C1=C(C)NC(C)=C(C(=O)OC)C1C1=CC=CC(Cl)=C1Cl RZTAMFZIAATZDJ-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
Definitions
- the present invention relates to a valve drive device for adjusting a threaded spindle of a pressure valve, in particular a pressure control valve; a
- Pressure valve unit with such a valve drive device and a corresponding pressure valve; a pressure valve system with such a pressure valve unit and a corresponding control unit and a machine tool with a power-operated clamping device and such a pressure valve system.
- the invention also relates to a use of a valve drive device described above or a pressure valve system described above for retrofitting a hand-operated pressure valve, in particular a hand-operated pressure control valve of a machine tool with a power-operated clamping device controllable by means of the pressure valve.
- DE 42 32 234 CI discloses a device for setting and monitoring the clamping pressure of a power-operated chuck, with a hydraulic circuit supplying a hydraulic drive, for example in the form of a hydraulic cylinder, which is fed by a pump and in which there is an adjustable pressure control valve.
- the pressure valve is coupled to a stepper motor so that the pressure in the working line can be adjusted according to the position of the stepper motor.
- Such pressure regulating devices are mainly used when the
- the assigned adjustable pressure control valve is controlled continuously or once until the desired pressure has been reached, in order to regulate the clamping pressure to a predetermined value.
- the target pressure is dependent on the chuck or chuck in use.
- Clamping cylinder or fluid actuator can be changed.
- a code generator is attached to the chuck, which interacts with a code pick-up, the output signal of which is available at the control device.
- EP 3 070 380 A1 discloses a retrofittable drive for a rising spindle of a spindle valve which has a motor and a drive that can be driven via the motor
- the drive can be frictionally connected to an upper valve part via a hollow body, an axially slotted distal area of the hollow body comprising a screw connection in order to press the axially slotted area with a radial force generated by the screw connection.
- This screw connection can be used, for example, as a clamp or a pipe clamp
- INCLUDED BY REFERENCE (RULE 20.6) be formed, which is arranged around the first end of the sleeve and can thus compress the slot in the tightened state.
- the inner diameter of the first end of the sleeve is also reduced, with the result that the sleeve can be fastened to the upper valve part in a non-positive manner.
- connection mechanism has the significant disadvantage that it is structurally complex, since on the one hand the hollow body has a slotted area, which is also used to
- Pressing must be designed to be flexible, and on the other hand requires a multi-part clamping device which encloses this area and which can easily be lost as a decoupled unit after the hollow body has been released from the valve.
- the object of the present invention is primarily to create a valve drive device for a pressure valve, in particular a pressure control valve, belonging to the technical field described at the outset, which is particularly simple in construction and inexpensive to manufacture and, furthermore, can be mounted very easily on existing hand-operated pressure valves, with one always being sufficiently precise Control of the pressure valve is guaranteed (without an additional adjustment of the adjustment mechanism being necessary).
- valve drive device for adjusting a threaded spindle of a pressure valve, in particular a pressure regulating valve, the threaded spindle protruding from a valve housing section of the pressure valve
- an electric motor unit having an electric motor and a drive shaft, which is in particular a motor shaft of the electric motor;
- a torque transmission unit having an adapter for transmitting a torque from the drive shaft to the threaded spindle, wherein the adapter can be coupled non-rotatably to the threaded spindle by means of a form fit;
- connection housing for fastening the valve drive device to the
- Valve housing section wherein the connecting housing has a valve receiving space in which the drive shaft, the adapter and a valve stop are arranged and which has a valve receiving section for the linearly mounted axial insertion of the valve housing section into the valve receiving space up to the valve stop, with at least one extending from one to the valve receiving section Outer surface of the connecting housing extending to the valve receiving space is arranged threaded bore with an associated screw element, by means of which the valve drive device can be non-positively attached to the valve housing section.
- a pressure valve in particular a pressure control valve, wherein a
- Valve drive device is arranged and attached to this, in particular wherein the
- Valve housing section of the pressure valve has a point-symmetrical, in particular circular or square outer cross-section, and / or the pressure valve has a polygonal, in particular hexagonal section for assembly purposes at an exit area of the threaded spindle from the valve housing section.
- Valve drive device depending on a predetermined pressure value to be set or regulated, in particular working pressure value and / or clamping pressure value of a device driven by means of a cylinder-like actuator, in particular a power-operated clamping device.
- the control or regulation takes place here by comparing the setpoint pressure value to be set with an actual pressure value of a pressure sensor in the hydraulic circuit.
- a machine tool with a power-operated clamping device and a pressure valve system of the type described above is presented, which is set up to set a predetermined working pressure value and / or clamping pressure value of the device driven by means of the cylinder-like actuator, in particular the power-operated device
- the machine tool has a corresponding pressure sensor in the hydraulic circuit assigned to the pressure valve.
- the present invention relates to a use of a valve drive device of the type described above or a pressure valve system of the type described above for retrofitting a hand-operated pressure valve, in particular a hand-operated pressure reducing valve, of a machine tool with a device driven by means of a cylinder-like actuator, in particular a power-operated clamping device, around a given
- the pressure valve is preferably a pressure valve in a hydraulic circuit or one
- Hydraulic circuit in particular a machine tool, for example.
- a power-operated clamping device or another driven by cylinder-like actuators With a power-operated clamping device or another driven by cylinder-like actuators
- valve drive device is thus preferably designed or intended for a hydraulic circuit.
- the pressure valve is preferably a pressure regulating valve or a pressure reducing valve
- the pressure valve is preferably a hand operated pressure valve, i. a pressure valve, which can be adjusted manually or manually when operated properly.
- the pressure valve can, for example, be a pressure valve of one of the following types:
- the threaded spindle protrudes from a valve housing section in such a way that it can be coupled outside the valve.
- the threaded spindle is an adjusting spindle of the pressure valve, by means of which, for example, an output pressure of the pressure valve can be adjusted during operation.
- the threaded spindle can be mounted in an upright position so that there is no axial displacement of the threaded spindle during adjustment.
- the mounting of the threaded spindle can, however, also be designed to increase, so that an axial displacement of the
- Threaded spindle takes place in a corresponding axial direction.
- the threaded spindle preferably has a (straight) cylindrical, in particular hexagonal
- the threaded spindle can, however, also have a spindle end section with a (straight) cylindrical, in particular hexagonal recess for positive, non-rotatable coupling to a correspondingly designed (straight) cylindrical, in particular hexagonal, adapter end section of an adapter.
- the pressure valve preferably has in the exit area of the threaded spindle from the
- the polygonal section is preferably adjacent to that
- Valve housing portion arranged.
- the valve housing section of the pressure valve preferably has a point-symmetrical, in particular circular or square (constant) outer cross section. That is, in other words, that the valve housing section has a straight cylindrical shape with a point-symmetrical, in particular circular or square (constant)
- the electric motor unit and / or the electric motor can be designed without a gear.
- the electric motor unit and / or the electric motor preferably has / have a transmission.
- the electric motor preferably has a rotary gear, in particular an integrated planetary gear without an axial stroke.
- the transmission is therefore not a
- Helical gear which converts the rotary movement into a lifting movement.
- the electric motor unit or the electric motor preferably have an electric switch for interrupting the power supply to the electric motor.
- the electric motor is preferably only partially arranged in the valve receiving space. In particular, the
- the electric motor can, however, also be completely inside or outside the valve receiving space
- the electric motor is attached to the connection housing.
- the electric motor is preferably fastened directly to the connecting housing by means of at least one screw element.
- the electric motor unit can have a motor housing.
- the motor housing can essentially completely enclose the electric motor.
- the motor housing can be designed such that it can be screwed onto the connection housing.
- the motor housing can have an internal thread.
- the drive shaft of the electric motor unit is arranged in the valve receiving space.
- the drive shaft is preferably the motor shaft of the electric motor.
- the drive shaft or the motor shaft is preferably arranged centrally in the valve receiving space. That is, in other words, that the electric motor is arranged relative to the connection housing in such a way that the axis of rotation of the motor shaft is essentially congruent to a
- the longitudinal axis and / or the axis of symmetry of the connecting housing and / or the insertion axis of the valve housing section runs into the valve receiving space.
- the torque transmission unit has an adapter for transmitting a
- the adapter being rotatably coupled to the threaded spindle by means of a form fit.
- the adapter is designed such that the coupling when inserting the
- Valve housing section takes place in the valve receiving space along the direction of insertion until reaching the valve stop.
- the adapter can be designed for the form-fitting rotationally fixed coupling to a correspondingly
- the adapter or the spindle receiving section of the adapter can have an extension along the travel path that is adapted to an axial travel path of a rising threaded spindle, in order to permit a relative movement of the threaded spindle to the valve drive device, i.e. take up or compensate for the axial travel of the threaded spindle.
- the torque transmission unit and / or the adapter can be designed entirely or partially in accordance with the torque transmission unit and / or the adapter of EP 3 070 380 A1 mentioned in the introduction.
- the adapter can be guided in a longitudinally displaceable manner and connected to the drive shaft in a manner secured against rotation.
- a spring element in particular a compression spring, can be arranged between the adapter and the electric motor in such a way that the adapter is pressed against the pressure valve.
- the compression spring can, for example, be arranged around the drive shaft. This ensures that the adapter is always connected to the threaded spindle so that it cannot rotate.
- the adapter has on the one hand a (straight) cylindrical, in particular hexagonal, adapter end section for insertion into the spindle end section, so that the adapter end section can be inserted into the spindle end section and is guided therein in a longitudinally displaceable manner and is held locked against rotation.
- the adapter also has a (straight) cylindrical, in particular hexagonal, recess for receiving the drive shaft, so that the drive shaft can be inserted into the recess in the spindle end section and is guided therein in a longitudinally displaceable manner and is secured against rotation.
- the above-mentioned spring element in particular the compression spring, is provided around the output shaft between the adapter and the electric motor.
- connection housing has a valve receiving space.
- the valve receiving space is delimited by an inner surface or a housing wall of the connection housing.
- the connecting housing or the valve receiving space has a valve receiving section with a valve insertion opening for the linearly mounted axial insertion of the
- the valve receiving space also has an opposite of the valve insertion opening
- Valve receiving section one to the outer geometry of the to be introduced
- Valve housing section correspondingly dimensioned shape or configuration, so that this linearly (without a rotary component) along an insertion direction into the
- Valve receiving space can be introduced or pushed in.
- the valve receiving space can be cylindrical, in particular circular cylindrical, in the valve receiving section.
- the connection housing can be designed as a hollow cylinder, in particular a circular hollow cylinder, in the valve receiving section.
- the valve receiving section can be implemented very easily, for example by means of a round recess or bore. This shape is also particularly advantageous since most valve housings have a circular cylindrical or square outer geometry.
- a defined valve stop is arranged in the valve receiving space.
- the valve stop is designed in such a way that the valve housing section can be inserted or pushed along the insertion direction up to a maximum of the defined valve stop.
- the direction of insertion preferably runs parallel to or in alignment with an axial direction of the axis of the drive shaft and / or a longitudinal direction of the connecting housing.
- the valve housing has at least one threaded bore extending from an outer surface of the connecting housing to the valve receiving space with an associated screw element, by means of which the valve drive device can be non-positively fastened to the valve housing section.
- the at least one threaded bore and the respective assigned screw element are designed such that the inserted valve housing section can be clamped in the valve receiving space or the valve receiving section by direct contact of the screw element with it, and the valve drive arrangement can thus be fixed axially and in the circumferential direction relative to the pressure valve, so that relative axial movements and
- the at least one threaded bore extends essentially perpendicular to the outer surface or perpendicular to the direction of insertion.
- the valve housing preferably has at least or precisely two threaded bores, each with a screw element.
- the screw element can be, for example, a threaded pin or a grub screw or a head screw or the like.
- the screw element is preferably already partially arranged in the threaded hole or screwed into the threaded hole until shortly before the valve receiving space. After fixing, the threaded connections can be secured against loosening due to vibrations and shock loads, for example by means of a screw lock, for example in the form of an adhesive.
- connection housing is preferably designed in the form of a sleeve, in particular as a circular hollow cylinder.
- the connection housing is rigid in the valve receiving section and possibly in the valve stop section and possibly in the flange section.
- the entire connection housing is preferably designed to be rigid.
- the connection housing is in the
- connection housing is preferably formed integrally.
- integral is to be understood in the context of the present connection as “one-piece” or “one-piece”.
- the connection housing is preferably of solid construction.
- the connection housing can at least partially comprise a metal or a plastic or consist of a metal or plastic Metal can be, for example, aluminum or an aluminum alloy.
- connection housing has an outer surface.
- the outer surface is preferably a jacket surface.
- the outer surface preferably has a structuring or defined
- Structuring and / or corrugation or defined corrugation which in particular was applied in a process step (s) separate from the production of the housing wall of the connecting housing.
- valve drive device can be designed in such a way that it is designed in accordance with protection class IP67 k and / or in accordance with the
- the present invention provides an extremely simply constructed and very inexpensive to manufacture compact valve drive device, which can also be mounted and dismantled or fixed and detached from existing manually operated pressure valves by means of simple aids without specialist knowledge.
- Several tests have shown that even one screw element (in a threaded hole) is sufficient to allow both axial movements and
- valve drive device has to be pushed or slipped over the corresponding valve housing section of the pressure valve up to the valve stop, and then the one or more usually just before the valve receiving space
- the adapter of the torque transmission unit is designed as a valve stop. This is a very simple measure to implement a valve stop.
- valve receiving space has a valve receiving section following the valve housing section in the insertion direction of the valve housing section
- Valve stop section in which a radially protruding, in particular fully extending wall section of the connecting housing is arranged, which is designed as the valve stop.
- valve stop section and the
- Valve receiving sections different, but can partially overlap, i.e. have a common section.
- the valve stop section is preferably arranged adjacent to the valve receiving section.
- the valve receiving space can be in
- Valve stop portion be cylindrical, in particular circular cylindrical.
- the connection housing can be designed as a hollow cylinder, in particular a circular hollow cylinder, in the valve stop section.
- Valve stop section and in the valve receiving section be the same and only the inner diameter in the valve stop section be smaller than that of the
- valve housing section As a result, the valve stop can also be opened very easily during the manufacture of the connection housing, for example by means of a round recess or
- Drilling can be realized.
- At least one of the threaded bores is arranged in the vicinity of the wall section, in particular at a distance of greater than or equal to 0 mm to less than or equal to 10 mm from the wall section.
- Edge area of the threaded hole is arranged adjacent to the wall section or up to a distance of 10mm from this.
- This design is particularly useful when using pressure valves which have a polygonal section in the exit area of the threaded spindle from the valve housing section for assembly purposes, since the corresponding screw element of the threaded hole in this case directly contacts this polygonal end section, so that one in addition to the frictional connection still has a form-fitting connection is created, which rotates the
- the distance between the threaded hole and the wall section can also essentially correspond to half the width of a resulting width across flats of the polygonal section of the valve housing section.
- valve receiving space has a flange section following the valve receiving section or the valve stop section in the insertion direction of the valve housing section, in which a radially projecting, in particular fully extending, wall section of the connecting housing is arranged, with at least one axially extending through bore in the wall section each having
- an associated screw element is arranged, by means of which the electric motor is non-positively attached to the connection housing.
- a flange is formed in the valve receiving space, by means of which the electric motor is non-positively attached to the connection housing.
- Valve receiving sections different, but can partially overlap, i.e. have a common section.
- the flange section and the valve stop section can also be different, but partially overlap, i.e. have a common section.
- the flange section can also be designed as the valve stop section.
- the flange section is preferably arranged adjacent to the valve stop section or the valve receiving section.
- the valve receiving space can be cylindrical, in particular circular cylindrical, in the flange section.
- the connection housing can be designed as a hollow cylinder, in particular a circular hollow cylinder, in the flange section.
- the outside diameter in the flange section, possibly in the valve stop section and in the valve receiving section can be the same and only the inside diameter in the flange section can be smaller than that of the
- Valve stop portion and smaller than that of the valve housing portion.
- Screw element can be, for example, a head screw or the like.
- O-rings can be arranged as axial compensation between the electric motor and the connection housing.
- connection housing is essentially circular-cylindrical on the outside, inside the valve receiving space in the valve receiving section and in the
- Valve stop section and is formed circularly cylindrical in the flange section, with a diameter which gradually decreases in an insertion direction of the valve housing section.
- connection housing in particular in the flange section, has an external thread on the outer surface for connecting a motor housing
- the electric motor unit in particular the electric motor, has a rotational resistance on the drive shaft in the non-operated state, which is higher than the torque required to adjust or rotate the threaded spindle, so that the threaded spindle can also be operated manually or manually by means of the Valve drive device 10 can be actuated.
- the electric motor unit in particular the electric motor, has a rotational resistance on the drive shaft in the non-operated state, which is higher than the torque required to adjust or rotate the threaded spindle, so that the threaded spindle can also be operated manually or manually by means of the Valve drive device 10 can be actuated.
- the electric motor unit or the electric motor is designed such that the threaded spindle is adjusted when the valve drive device is rotated manually or by hand on the pressure valve in the unsecured or unfixed state. To do this an axial
- valve receiving space on the valve receiving portion. This measure enables manual adjustment of the threaded spindle without dismantling the
- Valve drive device by simply loosening the at least one corresponding screw element and turning the valve drive device in the desired direction of rotation.
- a spindle fixing unit can also be provided, by means of which the valve drive device can be fixed on the threaded spindle.
- Connection housing on the valve stop section or on the flange section have a further threaded bore extending from the outer surface to the valve receiving space with an associated screw element, whereby by screwing in the screw element this presses on the threaded spindle, preferably the spindle end section and thereby jams the valve drive device with the threaded spindle, so that relative axial
- Manual adjustment of the threaded spindle without dismantling the valve drive device and without a corresponding configuration of the electric motor unit can be carried out by simply loosening the at least one corresponding screw element and turning the valve drive device in the desired direction of rotation, an axial displacement being additionally prevented.
- the adapter in particular by means of a screw element, is releasably fastened to the drive shaft of the electric motor unit, in particular the motor shaft of the electric motor, or can be coupled non-rotatably to the drive shaft by means of a form fit and a spring element, in particular a compression spring, between the adapter and the electric motor unit is arranged that the adapter is spring-loaded against the threaded spindle.
- the adapter and the drive shaft can be of a very simple design and can nevertheless be connected to one another in a rotationally fixed manner for torque transmission or, alternatively, a longitudinally displaceable arrangement can be implemented very easily.
- Lubricant pipe nozzle of a suitable spray or creeping oil liquid can
- the lubricant channel extending from the outer surface of the connecting housing to the valve receiving space and in particular being designed and aligned in such a way that an imaginary extended channel center axis of the lubricant channel when the valve housing section is inserted Essentially the
- Threaded spindle in particular an exit area of the threaded spindle from the
- Valve housing section, or a gear section of the electric motor unit cuts. It is particularly advantageous if the lubricant channel is cylindrical, in particular circular cylindrical.
- the lubricant channel can have a transverse dimension, in particular a diameter in a range from greater than or equal to 2 mm to less than or equal to 10 mm, in particular in a range from greater than or equal to 3 mm to less than or equal to 6 mm.
- the lubricant channel can optionally also be designed to be sealed. This measure offers the possibility of a very simple
- light-emitting elements in particular light-emitting diodes, which indicate the direction of rotation of the drive shaft and which are deactivated when the vehicle is stationary.
- the control unit of the pressure valve system can have a computing unit for processing signals or data, a memory unit for storing signals or data and at least one communication interface for reading in data, in particular for receiving sensor signals and for outputting data, in particular control signals, to the valve drive device or the Electric motor of the valve drive device, as well as pressure sensors of the two lines (A + B) of the working cylinder.
- the computing unit can be, for example, a signal processor, a microcontroller or the like, wherein the storage unit can be a flash memory, an EPROM or a magnetic storage unit.
- the communication interface can be designed to read in or output data wirelessly and / or wired, whereby a communication interface that can input or output wired data can input this data, for example electrically or optically, from a corresponding data transmission line or output it into a corresponding data transmission line .
- Figure 1 shows a sectional view of a valve drive device according to a
- FIG. 2 shows a perspective illustration of the valve drive device from FIG. 1.
- FIG. 1 shows an exemplary embodiment of a on the basis of a sectional illustration
- Valve drive device which is provided with the reference number 10 in its entirety.
- the valve drive device 10 is mounted on a pressure valve 12.
- Valve drive device 10 and pressure valve 12 together form a pressure valve unit 100.
- the pressure valve 12 is designed as a hand-operated pressure valve 12.
- the pressure valve 12 is designed as a pressure reducing valve 12 or pressure reducing valve 12.
- the pressure valve 12 has a valve housing 14.
- the pressure valve 12 also has a threaded spindle 14.
- the threaded spindle 16 is designed to be upright.
- the threaded spindle 16 has a
- Valve drive device 10 INCLUDED BY REFERENCE (RULE 20.6) Valve drive device 10 or, alternatively, a rotary knob (not shown).
- the threaded spindle 16 protrudes from a valve housing section 20 of the pressure valve 12.
- the valve housing section 20 has a circular cylindrical shape.
- the pressure valve 12 also has a hexagonal section 22 for assembly purposes in an exit region of the threaded spindle 16 from the valve housing section 18.
- the valve drive device 10 is designed to rotate the threaded spindle 16 in order to carry out a motorized pressure adjustment.
- the valve drive device 10 has an electric motor unit 24, a torque transmission unit 26 and a
- the electric motor unit 24 has an electric motor 30 with a rotary transmission and a drive shaft 32.
- the drive shaft 32 is a motor shaft 32 of the electric motor 30 in the exemplary embodiment shown Threaded spindle 16, so that the threaded spindle 16 can also be actuated manually or by hand by means of the valve drive device 10.
- the electric motor unit 24 also has a motor housing 34 in which the electric motor 30 is arranged and which is mechanically connected to the connection housing via a screw connection.
- the torque transmission unit 26 has an adapter 36 for transmitting a torque from the drive shaft 32 or the motor shaft 32 to the threaded spindle 16.
- the adapter is detachably fastened to the motor shaft 32 at one end by means of a screw element 38 via a non-positive connection.
- the adapter has an adapter end section 40 with a hexagonal recess, so that the hexagonal spindle end section 18 can be introduced into the adapter end section 40 and is guided and longitudinally displaceable therein
- the connecting housing 28 is used to fasten the valve drive device 10 to the pressure valve 12 or the valve housing section 20 of the pressure valve 12.
- Connection housing 28 is designed to be circular cylindrical on the outside.
- the connection housing 28 has a valve receiving space 42.
- In the valve receiving space 42 are the
- Valve housing section 20 the motor shaft 32 and the adapter 36 are arranged.
- the connecting housing 28 is designed in such a way that the valve housing section 20 is linearly supported and can be inserted axially along an insertion direction 44 into the valve receiving space 42 up to a stop 46.
- Valve receiving space 42 has a valve insertion opening 48 and a valve receiving section 50 with a circular cylindrical shape adapted to the circular cylindrical valve housing section 20, which is implemented as a recess or bore.
- the valve receiving space 42 also has one in the insertion direction 44 of the
- Valve housing section 20 following the valve receiving section 50
- Valve stop section 52 in which a radially projecting fully circumferential wall section 46 of the connecting housing 28 is arranged, which is designed as the valve stop 46 and up to which the valve housing section 20 is inserted into the valve receiving space 42.
- Valve stop section 52 has a circular cylindrical shape which is implemented as a recess or bore.
- the valve receiving space 42 also has one in the insertion direction 44 of the
- Valve housing section 20 on the valve stop section 52 following flange section 54 in which a radially projecting wall section 56 of the connecting housing 28 that extends over the full circumference is arranged.
- the valve receiving space 42 in the flange section 54 has a circular cylindrical shape which is implemented as a recess or bore.
- two axially extending through bores 58 are arranged, each with an associated screw element 60, by means of which the
- Electric motor 30 is non-positively attached to connection housing 28.
- Screw connections are arranged between the electric motor 30 and the connection housing 28 O-rings 62 as an axial compensation.
- valve receiving space 42 in the valve receiving section 50, in the valve stop section 52 and in the flange section 54 is each circular-cylindrical with a diameter that gradually decreases in an insertion direction 44 of the valve housing section 20.
- connection housing 28 also has an external thread 66 in the flange section 54 on an outer surface 64 for connecting the motor housing 34 of the electric motor unit 24.
- connection housing 28 is rigid and integrally formed and is made of aluminum.
- connection housing 28 also has two threaded bores 68, 70 on valve receiving section 50, each with an associated screw element 72, extending from outer surface 64 of connecting housing 28 to valve receiving space 42.
- the screw element 72 of the threaded bore 68 is in frictional contact with the valve housing section 20.
- the screw element 72 of the threaded bore 70 which is adjacent to the
- Valve stop section 46 or the wall section 46 is in frictional and form-fitting contact with the hexagonal section 22.
- connection housing 28 is fixed axially and in the circumferential direction on the valve housing section 20, so that relative axial movements and rotational movement between the
- Valve driving device 10 to the pressure valve 12 can be prevented.
- connection housing 28 also has a defined corrugation (not shown) on the outer surface 64 in order to facilitate the manual adjustment mentioned above by means of the valve drive device 10.
- the valve drive device 10 or the connecting housing 28 furthermore has a lubricant channel 74 for introducing a lubricant pipe (not shown) into the valve receiving space 42.
- the lubricant channel 74 here extends from the outer surface 64 of the connecting housing 28 to the valve receiving space 42 and is designed in this way aligned so that an imaginary extended channel center axis 76 of the lubricant channel 74 with the inserted valve housing section 20 essentially intersects the threaded spindle 16, in particular the exit area of the threaded spindle 16 from the valve housing section 20.
- the lubricant channel 74 is circular-cylindrical and has a
- FIG. 2 shows a perspective illustration of the valve drive device 10 or the pressure valve unit 100 from FIG. 1.
- the circular cylindrical valve housing 14 of the pressure valve 12 can be seen, above which the connecting housing 28 of the
- valve drive device 10 is pushed or turned over and the valve drive device 10 is fixed to the valve housing section 20 by means of the screw elements 72 of the threaded bores 68, 70.
- a pressure valve system (not shown) with the valve drive device 10 or the pressure valve unit 100 and also a control unit (not shown) can be provided, the control unit being set up to control the electric motor 30 of the valve drive device 10 as a function of a predetermined pressure value to be set or regulated, in particular to control the working pressure value and / or the clamping pressure value of a device driven by means of a cylinder-like actuator, in particular a power-operated clamping device.
- valve drive device 10 described or the pressure valve system described is particularly suitable for retrofitting a hand-operated pressure valve 12 of a machine tool (not shown) with a power-operated clamping device controllable by means of the pressure valve 12, in order to set and / or regulate a predetermined clamping pressure of the power-operated clamping device by motor.
- an exemplary embodiment comprises an "and / or" link between a first feature and a second feature. This is to be read in such a way that the exemplary embodiment according to one embodiment includes both the first feature and the second feature and according to a further embodiment either only the has the first feature or only the second feature.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019002724.8A DE102019002724B3 (de) | 2019-04-15 | 2019-04-15 | Venilantriebsvorrichtung für ein Druckventil |
PCT/IB2020/000315 WO2020222040A2 (de) | 2019-04-15 | 2020-04-08 | Ventilantriebsvorrichtung für ein druckventil |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3956587A2 true EP3956587A2 (de) | 2022-02-23 |
Family
ID=71615574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20786314.3A Pending EP3956587A2 (de) | 2019-04-15 | 2020-04-08 | Ventilantriebsvorrichtung für ein druckventil |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3956587A2 (de) |
DE (1) | DE102019002724B3 (de) |
WO (1) | WO2020222040A2 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4104318A1 (de) * | 1991-02-13 | 1992-08-20 | Knebel & Roettger Fa | Elektromotorische betaetigungsvorrichtung fuer absperrventile |
DE4232234C1 (de) | 1992-09-25 | 1994-01-05 | Rexroth Mannesmann Gmbh | Vorrichtung zur Einstellung und Überwachung des Spanndrucks eines kraftbetätigten Spannfutters |
DE19504886C2 (de) * | 1995-02-14 | 1999-01-07 | Mannesmann Rexroth Ag | Einstellbares Druckventil |
DE10134428A1 (de) * | 2001-07-19 | 2003-01-30 | Abb Research Ltd | Stellantrieb |
DE10259582A1 (de) * | 2002-12-19 | 2004-07-15 | A. u. K. Müller GmbH & Co KG | Ventileinrichtung mit einem elektromotorisch ansteuerbaren Servoventil |
EP3070380B1 (de) | 2015-03-19 | 2019-06-26 | R. Nussbaum AG | Ventilantrieb |
-
2019
- 2019-04-15 DE DE102019002724.8A patent/DE102019002724B3/de active Active
-
2020
- 2020-04-08 WO PCT/IB2020/000315 patent/WO2020222040A2/de unknown
- 2020-04-08 EP EP20786314.3A patent/EP3956587A2/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE102019002724B3 (de) | 2020-08-06 |
WO2020222040A3 (de) | 2021-01-14 |
WO2020222040A2 (de) | 2020-11-05 |
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