EP4321301A1 - Outil dynamométrique fonctionnant sur batterie - Google Patents

Outil dynamométrique fonctionnant sur batterie Download PDF

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Publication number
EP4321301A1
EP4321301A1 EP22189326.6A EP22189326A EP4321301A1 EP 4321301 A1 EP4321301 A1 EP 4321301A1 EP 22189326 A EP22189326 A EP 22189326A EP 4321301 A1 EP4321301 A1 EP 4321301A1
Authority
EP
European Patent Office
Prior art keywords
unit
tool
designed
connection
battery
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
Application number
EP22189326.6A
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German (de)
English (en)
Inventor
Ulrich Oehms
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hytorc Drehmomentmaschinen Seis GmbH
Original Assignee
Hytorc Drehmomentmaschinen Seis GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hytorc Drehmomentmaschinen Seis GmbH filed Critical Hytorc Drehmomentmaschinen Seis GmbH
Priority to EP22189326.6A priority Critical patent/EP4321301A1/fr
Publication of EP4321301A1 publication Critical patent/EP4321301A1/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/004—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type
    • B25B21/005—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type driven by a radially acting hydraulic or pneumatic piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/005—Hydraulic driving means

Definitions

  • the present invention relates to a tool device comprising a tool unit and a connection unit.
  • the connection unit is, in particular releasably, connected to the tool unit and the tool device is designed to be hydraulically driven via a hydraulic drive device that can be connected to the connection unit and thereby defines at least one driven state for the tool device.
  • the tool device is further designed to, in the at least one driven state, exert a force effect in the form of a torque transmission via an at least temporary, flat contact between the tool unit and an external connection point, in particular in the form of a temporary positive connection between the tool unit and an external connection point to act as external liaison officer.
  • the present invention further relates to a tool arrangement, in particular a hand-held, battery-operated screwing tool for torque transmission, which comprises a tool device that includes a tool unit and a connecting unit, and a hydraulic drive device.
  • the connection unit is, in particular releasably, connected to the tool unit and the tool device is designed to be connected to the hydraulic drive device via the connection unit and to be hydraulically driven via the hydraulic drive device, the tool device thereby defining at least one driven state.
  • the tool device is further designed to produce a force effect in the form of a torque transmission in the at least one driven state via an at least temporary, flat contact between the tool unit and an external connection point, in particular in the form of a temporary positive connection between the tool unit and an external connection unit to act as external liaison officer.
  • Such tool devices or tool arrangements are known from the prior art, in particular from hydraulic torque tools.
  • hydraulic torque tools have proven themselves in situations in which heavy screw connections with large threads have to be tightened with high forces.
  • the present invention is therefore based on the object of providing a tool device or tool arrangement of the type mentioned at the outset, which does not have the disadvantages mentioned above or at least to a lesser extent and in particular has a simple, compact and reliable design.
  • the present invention solves this problem starting from a tool device according to the preamble of claim 1 by the features specified in the characterizing part of claim 1 and starting from a tool arrangement according to the preamble of claim 8 by the features specified in the characterizing part of claim 8.
  • the present invention is based on the technical teaching that a simply constructed, compact and reliable design of a tool arrangement or a driven tool device can be achieved in a simple manner if the tool device can be connected directly, and preferably releasably, to a battery-hydraulically operated drive device or is connected to it and then forms an essentially physical unit with it in the form of a tool arrangement.
  • the basic structure and mode of operation are preferably the battery-hydraulically actuated drive devices in the form of a handle, which are known from the prior art, as are used, for example, in pressing tools (basic structure of the battery-hydraulically actuated drive devices in the form of a handle). taken on its own, for example, known from WO2022078944A1 ).
  • the present invention therefore relates to a tool device comprising a tool unit and a connection unit.
  • the connection unit is, in particular releasably, connected to the tool unit and the tool device is designed to be hydraulically driven via a hydraulic drive device that can be connected to the connection unit and thereby defines at least one driven state for the tool device.
  • the tool device is further designed to, in the at least one driven state, exert a force effect in the form of a torque transmission via an at least temporary, flat contact between the tool unit and an external connection point, in particular in the form of a temporary positive connection between the tool unit and an external connection point to act as external liaison officer.
  • the tool unit and the connection unit are designed and shaped such that the hydraulic drive device that can be connected to the connection unit is a battery-operated hydraulic drive device.
  • the tool unit and the connection unit are further designed such that the connection unit can be directly connected to a battery-operated hydraulic drive device and can be driven via it in order to exert the force effect in the form of a torque transmission on an external connection point.
  • the tool device is designed for this purpose, in particular the connection unit and the tool unit are designed in such a way that the tool device can be connected directly to a battery-operated, hydraulic drive device and can be driven entirely without the provision of an intermediate, oil-guided hose element that can be connected to the connecting unit.
  • connection unit can be designed such that at least a part of the connection unit, in particular at least one connection component of the connection unit, at least in a non-driven state of the tool device, has a substantially rigid, in particular releasable and rigid, connection, at least viewed along a main extension direction the connection unit, in particular along a main extension direction of a connection component of the connection unit, with a connectable battery-operated, hydraulic drive device.
  • the tool device can be designed such that, at least in a non-driven state of the tool device, it is designed to be rotatable about a main extension direction of a connecting component of the connecting unit relative to a connectable battery-operated hydraulic drive device.
  • the tool device can be designed such that a first connection component of the connection unit is designed to be rotatable about a main extension direction of the first connection component of the connection unit together with a lifting unit of the connection unit and together with the tool unit, at least in a non-driven state of the tool device. Furthermore, the tool device can be further designed such that a second connection component of the connection unit, at least in a non-driven state of the tool device, is designed to be rotatable about a main extension direction of the second connection component of the connection unit relative to a battery-operated, hydraulic drive device that can be connected to the second connection component.
  • the tool device is designed such that the main extension direction of the first connection component of the connection unit is essentially perpendicular to the Main extension direction of the second connection component of the connection unit is aligned.
  • the first connection component and the second connection component are connected to one another in an articulated manner.
  • these two variants are particularly suitable for setting up the tool device even at external connection points that are difficult to access and for putting it into operation for torque transmission, i.e. for converting it into a driven state.
  • the tool device for torque transmission can be of any shape.
  • the tool device is designed and acts as a battery-operated, hydraulically operated torque tool.
  • the tool device can be designed to act as a battery-hydraulically operated torque wrench in its at least one driven state of the tool device.
  • the tool device can be designed to transmit a target torque, in particular of up to 80,000 Nm, to an external connection point. It goes without saying that with appropriate dimensioning of the tool device and the connectable battery-hydraulic drive device, higher target torques can also be transmitted.
  • the tool device can be designed such that, in its at least one driven state, it provides torque transmission to an external connection point for tightening and/or loosening a screw connection, in particular tightening and/or loosening a screw or a nut of a screw connection provides.
  • the tool device can be designed to be formed with a tool unit in the form of an open torque wrench for transmitting torque to an external connection point.
  • the tool device can be designed to be shaped to transmit torque to an external connection point with a tool unit in the form of a closed torque wrench.
  • the tool device can be designed to provide, in its at least one driven state, a control and/or an exact setting of a target torque at an external connection point, in particular at a tower screw connection of a wind turbine.
  • the tool device which can be directly connected and driven with a battery-operated hydraulic drive device, enables a variety of areas of application, including external connection points in otherwise difficult to access locations.
  • the tool unit can be designed and constructed in any way for controlled torque transmission to an external connection point, in particular it can be constructed in a modular manner.
  • the tool unit includes a torque wrench unit.
  • the torque wrench unit can be detachably connected to the remaining tool unit.
  • the torque wrench unit can have a recess that defines a recess shape and the torque wrench unit with its recess is designed to provide the at least temporary, flat contact between the tool unit and an external connection point for torque transmission, the recess shape in particular having a wrench size between 17 mm to to 170 mm, preferably between 17 mm and 130 mm.
  • a tool unit with a wrench size for example between 95 mm and 130 mm, is particularly suitable for checking and/or setting a target torque of a tower screw connection in wind turbines.
  • a wrench size of 130 mm for example, corresponds to an M90 hexagon nut of a screw connection
  • Larger wrench sizes can reach up to 170 mm, for example, if the tool arrangement is designed accordingly.
  • the torque wrench unit can have a recess which is designed to have an adapter unit on its outer circumference arranged toothing, which acts as a drive ratchet, and a drive shoe that interacts with it and can be detachably accommodated with communicating toothing.
  • the adapter unit here has a recess and defines a recess shape, wherein the adapter unit with its recess and recess shape is designed to provide the at least temporary, flat contact between the tool unit and an external connection point for torque transmission.
  • the recess shape preferably provides a width across flats (SW) between 17 mm and 170 mm, preferably between 17 mm and 130 mm.
  • a tool unit with a wrench size for example between 95 mm and 130 mm, is particularly suitable for checking and/or setting a target torque of a tower screw connection in wind turbines. Larger wrench sizes can reach up to 170 mm, for example, if the tool arrangement is designed accordingly.
  • the design of the adapter unit as a drive ratchet and its interaction with a drive shoe, both of which are arranged in a recess of a torque wrench unit, advantageously prevents slipping in the driven state during torque transmission due to the positively guided positive fit of the interacting parts.
  • the adapter unit is not designed as a drive ratchet and the adapter unit is releasably inserted into the torque wrench unit in such a way that a reliable transmission of the torque to an external connection point still occurs.
  • the torque wrench unit has a recess into which an adapter unit of the torque wrench unit can be detachably received.
  • the adapter unit can have a recess and define a recess shape, the adapter unit with its recess being designed to provide the at least temporary, flat contact between the tool unit and an external connection point for torque transmission.
  • the recess shape preferably provides a width across flats (SW) between 17 mm and 170 mm, preferably between 17 mm and 130 mm.
  • a tool unit with a wrench size is particularly suitable for checking and/or setting a target torque of a tower screw connection in wind turbines.
  • the adapter unit can be designed as a peg-like external square or external hexagon in order to provide torque transmission to an external connection point.
  • the torque wrench unit can be shaped as an open or closed torque wrench.
  • the modular structure of the tool unit thus enables a variety of possible tool device configurations in a simple and compact manner in order to take different applications into account.
  • the tool unit further comprises a tool housing unit, in which case the tool housing unit is designed to interact with the torque wrench unit via its housing and in particular partially surrounds it.
  • the tool housing unit can detachably accommodate the torque wrench unit.
  • connection unit is designed such that the connection unit provides the connection between the tool unit and the battery-operated, hydraulic drive device, in particular is physically arranged between the two.
  • connection unit provides the connection between the tool unit and the battery-operated, hydraulic drive device, in particular is physically arranged between the two.
  • at least one part of the connection unit in particular a lifting unit of the connection unit, is designed in the form of an adapter and is connected, in particular releasably connected, to at least one further part of the connection unit, in particular at least one connection component of the connection unit.
  • the at least one further part of the connection unit in particular the at least one connection component of the connection unit, provides a substantially rigid, in particular releasable and rigid, connection, at least viewed along a main extension direction of the connection unit, with the connected one battery-operated, hydraulic Drive device ready.
  • the battery-operated, hydraulic drive device is preferably designed in the form of a pistol-like handle.
  • the internal structure of the tool device can be designed in any way for the controlled transmission of a target torque to an external connection point.
  • the tool device includes a lifting unit and a drive pulley unit.
  • the drive pulley unit represents at least part of a torque wrench unit, in particular it is designed as a torque wrench unit which is designed to provide torque transmission to an external connection point.
  • the lifting unit can here comprise a piston which is designed to cooperate with a hydraulic unit in the at least one driven state of the tool device in such a way that the piston is pressurized in response to an adjustable hydraulic pressure of the battery-operated hydraulic drive device which can be connected to the connecting unit and a Piston stroke movement is carried out.
  • the piston stroke movement includes at least one piston stroke cycle.
  • the hydraulic unit preferably comprises or will preferably have a single-acting hydraulic cylinder with a preloaded spring unit for returning to the starting position or comprise a double-acting hydraulic cylinder with correspondingly provided and controllable directional valves.
  • the drive pulley unit can be designed to carry out a pivoting movement in the at least one driven state of the tool device, the pivoting movement comprising at least one pivoting movement cycle.
  • the tool device can further comprise a piston rod.
  • the piston rod can be designed and arranged in such a way and can be connected to the drive pulley unit at a first end of the piston rod and connected to the piston at a second end of the piston rod, such that in the at least one driven state of the tool device in response to the piston stroke movement of the piston Drive pulley unit performs the pivoting movement to provide torque transmission to an external connection point.
  • the present invention relates to a tool arrangement, in particular a hand-tied, battery-operated screwing tool for torque transmission.
  • the tool arrangement includes a Tool device, which in turn comprises a tool unit and a connection unit.
  • the tool arrangement comprises a hydraulic drive device, wherein the connection unit is connected, in particular releasably, to the tool unit, and the tool device is designed to be connected, in particular releasably, to the hydraulic drive device via the connection unit and to be hydraulically driven via the hydraulic drive device be, wherein the tool device defines at least one driven state.
  • the tool device is further designed to, in the at least one driven state, exert a force effect in the form of a torque transmission via an at least temporary, flat contact between the tool unit and an external connection point, in particular in the form of a temporary positive connection between the tool unit and an external connection point to act as external liaison officer.
  • the tool unit and the connection unit are designed and shaped such that the hydraulic drive device connected to the connection unit, in particular releasably, is a battery-operated hydraulic drive device.
  • the tool unit and the connection unit are designed such that the connection unit is connected and driven directly to the battery-operated hydraulic drive device in order to exert the force effect in the form of a torque transmission on the external connection point.
  • the tool arrangement according to the invention represents a particularly compact design, since the tool device is directly connected to the battery-operated hydraulic drive device and forms a single tool component or a physical unit.
  • the tool device is designed for this purpose, in particular the connection unit and the tool unit are designed in such a way that the tool device is connected directly to the battery-operated, hydraulic drive device entirely without the provision of an intermediate, oil-guideable hose element connected to the connection unit and is driven.
  • connection unit can be designed such that at least a part of the connection unit, in particular at least one connection component of the connection unit, at least in a non-driven state of the tool device, has a substantially rigid, in particular releasable and rigid, connection, at least viewed along a main extension direction the connection unit, in particular along a main extension direction of a connection component of the connection unit, with the connected battery-operated, hydraulic drive device, which is in particular designed in the form of a pistol-like handle.
  • the tool device can be designed such that, at least in a non-driven state of the tool device, it is designed to be rotatable relative to the connected battery-operated hydraulic drive device about a main extension direction of a connection component of the connection unit.
  • the tool device can be designed such that a first connection component of the connection unit is designed to be rotatable about a main extension direction of the first connection component of the connection unit together with a lifting unit of the connection unit and together with the tool unit, at least in a non-driven state of the tool device.
  • the tool device can further be designed such that a second connection component of the connection unit, at least in a non-driven state of the tool device, is designed to be rotatable about a main extension direction of the second connection component of the connection unit relative to the battery-operated, hydraulic drive device connected to the second connection component.
  • the tool device is designed such that the main extension direction of the first connection component of the connection unit is aligned essentially at right angles to the main extension direction of the second connection component of the connection unit.
  • the first connection component and the second connection component are connected to one another in an articulated manner.
  • the tool arrangement is designed and acts as a battery-operated, hydraulically operated torque wrench tool.
  • the tool device can be designed to act as a battery-operated torque wrench in its at least one driven state.
  • the tool device can be designed to transmit a target torque, in particular of up to 80,000 Nm, to an external connection unit. It goes without saying that if the tool arrangement is dimensioned accordingly (i.e. including the battery-hydraulic drive device), higher target torques can also be transmitted.
  • the tool device can be designed such that, in its at least one driven state, it provides torque transmission to an external connection point for tightening and/or loosening a screw connection, in particular tightening and/or loosening a screw or a nut of a screw connection provides.
  • the tool device can be designed to be shaped in the form of an open torque wrench for torque transmission to an external connection point with the tool unit.
  • the tool device can be designed to be shaped to transmit torque to an external connection point with a tool unit in the form of a closed torque wrench.
  • the tool device can be designed, in its at least one driven state, to provide control and/or an exact setting of a target torque at an external connection point, in particular at a tower screw connection of a wind turbine.
  • the direct connection of the battery-operated hydraulic drive device with the tool device enables a variety of areas of application.
  • the tool unit can be designed and constructed in any way for controlled torque transmission to an external connection point, in particular it can be constructed in a modular manner.
  • the tool unit of the tool arrangement therefore comprises a torque wrench unit.
  • the torque wrench unit can be detachably connected to the remaining tool unit.
  • the torque wrench unit can have a recess that defines a recess shape and the torque wrench unit with its recess is designed to provide the at least temporary, surface contact between the tool unit and an external connection point for torque transmission.
  • the recess shape preferably provides a wrench size between 17 mm and 170 mm, preferably between 17 mm and 130 mm.
  • a tool unit with a wrench size is particularly suitable for checking and/or setting a target torque of a tower screw connection in wind turbines.
  • the torque wrench unit can have a recess which is designed to releasably accommodate an adapter unit with teeth arranged on its outer circumference, which acts as a drive ratchet, and a drive shoe which interacts with it and has communicating teeth.
  • the adapter unit can have a recess and define a recess shape, the adapter unit with its recess and recess shape being designed to provide the at least temporary, flat contact between the tool unit and an external connection point for torque transmission, the recess shape in particular being a Wrench size between 17 mm and 170 mm, preferably between 17 mm and 130 mm.
  • a tool unit with a wrench size is particularly suitable for checking and/or setting a target torque of a tower screw connection in wind turbines.
  • the design of the adapter unit as a drive ratchet and its interaction with a drive shoe, both of which are arranged in a recess of a torque wrench unit, advantageously prevents slipping in the driven state during torque transmission due to the positively guided positive fit of the interacting parts.
  • the torque wrench unit can have a recess into which an adapter unit of the torque wrench unit can be detachably received, wherein (i) the adapter unit has a recess and defines a recess shape.
  • the adapter unit can be designed with its recess to provide the at least temporary, flat contact between the tool unit and an external connection point for torque transmission, the recess shape in particular having a wrench size (SW) between 17 mm and 170 mm, preferably between 17 mm and 130 mm, provides.
  • SW wrench size
  • a tool unit with a wrench size is particularly suitable for checking and/or setting a target torque of a tower screw connection in wind turbines.
  • the adapter unit can be designed as a peg-like external square or external hexagon in order to provide torque transmission to an external connection point.
  • the torque wrench unit can be shaped as an open or closed torque wrench.
  • the modular structure of the tool unit thus enables a variety of possible tool arrangement configurations in a simple and compact manner in order to take different applications into account.
  • the tool unit comprises a tool housing unit, the tool housing unit being designed to interact with the torque wrench unit via its housing, and in particular partially surrounding it and/or wherein the Tool housing unit is designed to releasably accommodate the torque wrench unit.
  • the connecting unit of the tool arrangement can basically be designed in any conceivable way. Particularly advantageous, modularly interchangeable and compact and handy configurations of the tool arrangement for different applications can be realized if, in a further advantageous variant, at least part of the connection unit, in particular a lifting unit of the connection unit, is designed in the form of an adapter and with a further part of the connection unit , in particular at least one connection component of the connection unit, in particular releasably, is connected. Furthermore, the connection unit preferably provides the connection between the tool unit and the battery-operated, hydraulic drive device, in particular the connection unit is physically arranged between these two.
  • the at least one further part of the connection unit in particular the at least one connection component of the connection unit, at least in a non-driven state of the tool device, provides a substantially rigid, in particular releasable and rigid, connection, at least viewed along a main extension direction of the connection unit, with which connected battery-operated, hydraulic drive device.
  • the battery-operated, hydraulic drive device is preferably designed in the form of a pistol-like handle.
  • the tool arrangement have a tool device for transmitting a (target) torque to an external connection point, the connection unit of which comprises a lifting unit and the tool unit comprises a drive pulley unit.
  • the drive pulley unit can represent at least part of a torque wrench unit, in particular as Torque wrench unit may be designed, wherein it is designed to provide the torque transmission to an external connection point.
  • the lifting unit can comprise a piston which, in the at least one driven state of the tool device, is designed to interact with a hydraulic unit in such a way that the piston is pressurized in response to an adjustable hydraulic pressure of the battery-operated hydraulic drive device connected to the connecting unit and carries out a piston lifting movement .
  • the piston stroke movement can include at least one piston stroke cycle.
  • the hydraulic unit can have a single-acting hydraulic cylinder with a preloaded spring unit for returning to the starting position or a double-acting hydraulic cylinder with correspondingly provided and controllable directional valves.
  • the drive pulley unit is preferably designed to carry out a pivoting movement in the at least one driven state of the tool device, the pivoting movement comprising at least one pivoting movement cycle.
  • the tool device can further comprise a piston rod, and the piston rod can be designed and arranged in such a way and be connected to the drive pulley unit at a first end of the piston rod and connected to the piston at a second end of the piston rod such that in the at least one driven state of the Tool device in response to the piston stroke movement of the piston, the drive pulley unit performs the pivoting movement to provide torque transmission to an external connection point.
  • the tool arrangement can in principle be supplemented by any additional devices in order to fulfill additional functions, in particular to ensure occupational safety.
  • Particularly advantageous variants of the tool arrangement with regard to compliance with occupational safety aspects also include a safety device.
  • the safety device is designed to be pivotable, and in particular releasable, to be connected, in particular fixed, to the connection unit and/or to the battery-operated hydraulic drive device.
  • the safety device can be further designed to be pivotable between a starting position and an end position.
  • the safety device can further be designed and arranged such that in the end position, in particular in the at least one driven state of the tool device, it has a safety area in the form of a safety cavity between the safety device and the battery-operated hydraulic drive device, at least at the location of the operating unit and the holding area on the drive device, in particular to avoid finger bruising.
  • the tool arrangement is designed to carry out an electronic emergency shutdown of the tool arrangement in the at least one driven state of the tool device when the safety device assumes the end position, with the tool device being transferred to a non-driven state.
  • the invention relates to a method, in particular for use in wind turbines and/or elevators, with one of the variants of the tool arrangement as just described in more detail.
  • the method is used to check a target torque at an external connection point, in particular on a screw connection, and/or for setting a target torque, and/or for tightening and loosening connection points, in particular screws or nuts of screw connections or of cutting ring screw connections.
  • the invention relates to the use of a tool arrangement according to one of the variants or combinations of these variants described above, the tool arrangement for checking and/or setting a target torque at an external connection point, in particular at a screw connection, in wind turbines, in particular in the tower screw connection, and/or in elevator systems and/or in supply lines for burners on gas turbine systems.
  • Figure 1 shows a schematic view of the tool arrangement (1) according to the invention with the tool device (100) according to the invention.
  • the tool arrangement (1) is designed as a hand-held, battery-hydraulically operated torque tool.
  • the tool arrangement (1) has a tool unit (110), a connection unit (120) and a battery-operated hydraulic drive device (10).
  • the tool unit (110) is shaped here as a closed torque wrench.
  • a target torque of up to 35,000 Nm can be transmitted to an external connection point, in particular to a screw connection.
  • the components of the tool arrangement (1) are designed accordingly, much higher Doll torques can be transmitted, for example up to 80,000 NM or more:
  • the target torque that is to be transmitted to the external connection point can be adjusted in a driven state of the tool arrangement (1) via the corresponding operation of the operating unit (10.1) on the battery-operated hydraulic drive device (10).
  • a battery unit (12) is provided for operation.
  • the basic structure and mode of operation of the battery-operated hydraulic drive device (10) used, which in the present exemplary embodiment is shaped as a rod-shaped handle, is known, among other things, from battery-operated hydraulic pressing tools and is not described in further detail here.
  • FIG 2 the internal structure of the tool unit (110) and parts of the connecting unit (120) of the tool device (100) can be seen, which has an in Figure 1 battery-operated hydraulic drive device (10) shown is connected.
  • the tool device (100) has a lifting unit (121) for transmitting a piston lifting movement (HB) to a drive pulley unit (112), which in turn carries out a pivoting movement (SB) to transmit torque, as in Figure 2 visible.
  • HB piston lifting movement
  • SB pivoting movement
  • the lifting unit (121) comprises a piston (121.1), which in the at least one driven state is connected to a hydraulic chamber or a hydraulic unit (not in Figure 2 shown) the battery-operated hydraulic drive device (10) connected directly to the connection unit (120) interacts via the connection unit in such a way that the piston (121.1) is pressurized in response to a hydraulic pressure that can be set on the battery-operated hydraulic drive device (10) and a Piston stroke movement (HB) is carried out.
  • the return to the starting position of the piston takes place in a known manner by means of a preloaded spring unit (not shown) which interacts with the piston. After the return, a piston stroke cycle or, correspondingly, a pivoting movement cycle must be completed and it is understood that further cycles can follow before the operation of the Tool arrangement is terminated at the external connection point for torque transmission.
  • the tool device (100) leads the piston movement of the piston (121.1) - in a known manner and arrangement - in cooperation with the connected piston rod (121.2) to the pivoting movement of the drive pulley unit (112).
  • the drive pulley unit (112) is designed as a torque wrench unit (113), which is intended to provide the torque transmission to the external connecting element during the mutual temporary contact.
  • the torque wrench unit (113) has a recess (AN).
  • an adapter unit (113.1) of the torque wrench unit (113) is detachably accommodated in this recess (AN).
  • the adapter unit (113.1) further comprises toothings (not shown) arranged on its outer circumference, which in the driven state communicate with toothings of a drive shoe, which is also releasably arranged in the recess (AN) of the torque wrench unit (113) (see triangular shape in Figure 2 ; Position only indicated by the recess in Figure 2 ) and in the driven state interacts with the adapter unit (113.1).
  • the adapter unit (113.1) interacts in a known manner with the drive shoe, in this case as a drive ratchet, and prevents the tool arrangement (1) or the tool device (100) from slipping when the tool arrangement (1) or the tool device (100) is in a driven state due to the positively guided positive fit of the interacting parts.
  • This recess shape provides the contact surface on the tool side for the at least temporary, flat contact between the tool unit (110) and the external connection point for torque transmission.
  • the recess (AS) has a hexagonal shape with a wrench size (SW) of 36 mm. It is understood that in other variants, other recess shapes or other wrench widths (SW) can also be provided through correspondingly differently designed adapter units or directly via appropriately designed torque wrench units (113), which in turn directly have a correspondingly shaped recess (AS).
  • the tool arrangement is particularly suitable for use when checking and setting a target torque at an external connection point, such as on a screw connection, in wind turbines and/or in elevator systems and/or in supply lines for burners on gas turbine systems.
  • the lifting unit (121) of the connecting unit (120) acts in the manner of an adapter, whereby a variety of configurations of tool arrangements with different versions of the tool units are possible.
  • the tool unit (110) itself can also advantageously be constructed modularly in order to achieve further, flexible interchangeability of the components of the tool arrangement and to keep the number of differently designed components to a minimum.
  • the tool arrangement (1) as in the present embodiment in Figure 2 indicated, a tool housing unit (111) is used, in which the specifically designed torque wrench unit (113) or the drive pulley unit (112) required for the application is detachably received.
  • the battery-operated hydraulic drive device (10), at least in the non-operated state is essentially rigid (and in the present case also when viewed along the main extension direction of a connecting component (120) of the connecting unit (120). detachable) and is also directly connected to the tool device. Furthermore, in the present exemplary embodiment it is provided that the tool device, at least in the non-operated state, is designed to be rotatable about the main extension direction of the connecting component (122) of the connecting unit (120). It goes without saying that in other versions this connection can also be designed differently, in particular it can be designed to be non-detachable.
  • the battery-operated hydraulic drive device (10) is shaped as a rod-shaped handle and the tool arrangement (1) as a whole is designed to be compact and easy to handle, which has an advantageous effect on operation, especially over a longer period of time and with multiple retooling and changes of location, especially from the point of view of occupational safety and work efficiency aspects.
  • the tool arrangement (1) is driven exclusively by this battery-operated hydraulic drive device (10).
  • a hose-connected version that provides the oil with a (battery-operated) external hydraulic unit, as is otherwise known from the prior art, is completely dispensed with.
  • the result is a handy, compact and lightweight design that requires efficient work in tight spaces without having to carry heavy hose-mounted hydraulic units.
  • the mode of operation of the structure basically corresponds to the structure of the tool arrangement of the first exemplary embodiment. Therefore, no sectional view of the tool arrangement (2) is shown and reference is therefore made to the statements on the first exemplary embodiment with regard to the internal components of the tool device (200), the components of the tool device of the second exemplary embodiment being given reference number values increased by the value 100.
  • the tool unit (210) or the tool housing unit (211) with its internally accommodated torque wrench unit (113) is shaped and designed as an open key and also has a corresponding adapter unit (213.1) for this purpose.
  • the adapter unit (213.1) is not closed but is designed to be open.
  • the battery-operated hydraulic drive device (20) is basically the same (apart from the fact that no drive ratchet version is provided here) in structure and mode of operation as shown in the first exemplary embodiment. Reference is made to the comments on the first exemplary embodiment and its advantages and applications.
  • the mode of operation of the structure basically corresponds to the structure of the tool arrangement of the first exemplary embodiment. Therefore, no sectional view of the tool arrangement (3) is shown and reference is therefore made to the statements regarding the first exemplary embodiment with regard to the internal components of the tool device (300), with the components of the tool device (300) of the third exemplary embodiment having reference number values increased by the value 200 obtained from the first exemplary embodiment.
  • the handle (31) of the battery-operated hydraulic drive device (30) is designed differently, without thereby changing the mode of operation or the basic structure of the tool arrangement according to the invention.
  • the modular design of the tool arrangement means that a variety of configurations of the tool arrangement are possible, including by varying the handle (31) of the battery-operated, hydraulic drive device (30).
  • the operating unit (30.1) and the holding area (31.1) of the handle (31) are now arranged spatially further away from the tool unit (310) compared to the first and second exemplary embodiments.
  • This relative alignment of the battery-operated, hydraulic drive device (30) with its pistol-like handle (31) relative to the arrangement of the tool device (300), especially relative to the tool unit (310), is realized here in an advantageous, simple manner in that the tool device (300 ), at least in a non-operated state, is designed to be rotatable about a main extension direction of a connecting component (322) of the connecting unit (320) relative to the battery-operated, hydraulic drive device (30) in the form of a pistol-like handle (31).
  • the tool arrangement can also be used very flexibly in terms of the relative, geometric alignment of the individual components and, among other things, with regard to rapid work and as a preventive measure against injuries, for example due to crushing parts of the hand, including the holding area (31.1) of the handle (31) during work advantageous in confined spaces.
  • the mode of operation of the structure basically corresponds to the structure of the tool arrangement of the first exemplary embodiment. Therefore, no sectional view of the tool arrangement (4) is shown and reference is therefore made to the statements regarding the first exemplary embodiment with regard to the internal components of the tool device (400), with the components of the tool device (400) of the fourth exemplary embodiment having reference number values increased by the value 300 obtained from the first exemplary embodiment.
  • the tool arrangement (4) according to the fourth exemplary embodiment additionally has a safety device (43) on the tool arrangement (4) in order to protect the operator, in particular the operator's hands and arms, from injuries during the driven state of the tool arrangement (4). especially as a result of limited space or when work processes are required to be quick.
  • the safety device (43) is pivotable and, in the present case, releasably connected or fixed at the transition point between the connection unit (420) and the battery-operated hydraulic drive device (40).
  • the safety device (43) can also be connected to the tool arrangement elsewhere, as long as it fulfills the required purpose.
  • the safety device (43) is characterized in that it can be pivoted between a starting position (AP) and an end position (EP), and in the event of a pivoting into the end position, which occurs, for example, as a result of an impact on the safety device (43) by an external Component or device is effected, an electronic emergency shutdown of the tool arrangement (4).
  • the safety device (43) is electronically connected to the battery-operated hydraulic drive device (40).
  • the safety device (43) is attached and designed in such a way that in the end position (EP), in particular in the at least one driven state of the tool device (400), it creates a safety area in the form of a safety cavity (SHR) between the safety device (43) and the battery-operated hydraulic Drive device (40) provides.
  • SHR safety cavity
  • the safety cavity (SHR) comprises at least the spatial surroundings of the operating unit (40.1) and the holding area (41.1) of the handle (41) on the drive device (40), in order to avoid finger crushing.
  • a (pure) solid, mechanical barrier in the manner of a swivel arm can additionally or alternatively be provided in order to provide a safety device, which in itself is not designed for this purpose in the event of a swivel into an end position, which comes closest to the holding area of the handle, but rather secures the operator's hand exclusively through a mechanical barrier.
  • the fourth exemplary embodiment is particularly suitable for places that are difficult to access.
  • the mode of operation of the structure basically corresponds to the structure of the first exemplary embodiment. Therefore, no sectional view of the tool arrangement (5) is shown and reference is therefore made to the statements on the first exemplary embodiment with regard to the internal components of the tool unit (510) and the lifting unit (521) of the connecting unit (520), the components of the tool device (500 ) of the fifth exemplary embodiment received reference symbol values increased by the value 400 compared to the first exemplary embodiment.
  • the tool arrangement of this exemplary embodiment is particularly advantageous for hard-to-reach areas of the external connection point.
  • connection unit (520) is aligned, wherein the first (522) and the second connection component (523) are articulated to one another, and the first connection component (522) of the connection unit (520) together with a lifting unit (521) of the connection unit (520) and together with the tool unit (510), at least in a non-driven state of the tool device (500), is designed to be rotatable about the main extension direction of the first connecting component (522) of the connecting unit.
  • connection component (523) of the connection unit (520) at least in a non-driven state of the tool device, is rotatable about the main extension direction of the second connection component (50) relative to the battery-operated, hydraulic drive device (50) connected to the second connection component (523). 523) of the connection unit (520).
  • the lifting unit (521) of the tool arrangement (5) is, compared to the previous exemplary embodiments, here in an exposed position from the battery-operated, hydraulic drive device (50); In this case, the oil must first be routed via the second connection component (523) into the first connection component (522). The piston stroke movement or the torque transmission then takes place according to the principles as described in connection with the first exemplary embodiment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP22189326.6A 2022-08-08 2022-08-08 Outil dynamométrique fonctionnant sur batterie Pending EP4321301A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22189326.6A EP4321301A1 (fr) 2022-08-08 2022-08-08 Outil dynamométrique fonctionnant sur batterie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22189326.6A EP4321301A1 (fr) 2022-08-08 2022-08-08 Outil dynamométrique fonctionnant sur batterie

Publications (1)

Publication Number Publication Date
EP4321301A1 true EP4321301A1 (fr) 2024-02-14

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EP (1) EP4321301A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186262A (en) * 1991-10-30 1993-02-16 Caterpillar Inc. Powered tool apparatus
EP1157786A2 (fr) * 2000-05-25 2001-11-28 Von Arx Ag Outil de sertissage pour sertir un élément déconnection
US20060005668A1 (en) * 2003-04-11 2006-01-12 Brian Knopp Hydraulic torque wrench system
US20190358793A1 (en) * 2016-11-14 2019-11-28 Torque Tension Systems Limited A hydraulic torque wrench
WO2022078944A1 (fr) 2020-10-12 2022-04-21 Gustav Klauke Gmbh Dispositif de travail à actionnement hydraulique conçu pour être tenu à la main

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186262A (en) * 1991-10-30 1993-02-16 Caterpillar Inc. Powered tool apparatus
EP1157786A2 (fr) * 2000-05-25 2001-11-28 Von Arx Ag Outil de sertissage pour sertir un élément déconnection
US20060005668A1 (en) * 2003-04-11 2006-01-12 Brian Knopp Hydraulic torque wrench system
US20190358793A1 (en) * 2016-11-14 2019-11-28 Torque Tension Systems Limited A hydraulic torque wrench
WO2022078944A1 (fr) 2020-10-12 2022-04-21 Gustav Klauke Gmbh Dispositif de travail à actionnement hydraulique conçu pour être tenu à la main

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