EP3638378A1 - Hydraulikaggregat für hydraulische rettungswerkzeuge sowie damit ausgestattetes rettungswerkzeug - Google Patents
Hydraulikaggregat für hydraulische rettungswerkzeuge sowie damit ausgestattetes rettungswerkzeugInfo
- Publication number
- EP3638378A1 EP3638378A1 EP18742897.4A EP18742897A EP3638378A1 EP 3638378 A1 EP3638378 A1 EP 3638378A1 EP 18742897 A EP18742897 A EP 18742897A EP 3638378 A1 EP3638378 A1 EP 3638378A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic
- motor
- end wall
- tank
- hydraulic unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 230000007480 spreading Effects 0.000 claims abstract description 11
- 230000004323 axial length Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 235000012771 pancakes Nutrition 0.000 claims description 71
- 238000004804 winding Methods 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
- A62B3/005—Rescue tools with forcing action
-
- 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
- B25B28/00—Portable power-driven joining or separation tools
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/18—Combined units comprising both motor and pump
Definitions
- Hydraulic unit for hydraulic rescue tools and rescue tool equipped therewith
- the invention relates to a portable, battery-powered hydraulic power unit for hydraulic rescue tools, in particular for spreading or scissors tools, and a rescue tool equipped with such a hydraulic unit, as indicated in the claims.
- Hydraulic rescue tools are known in particular as spreading or shearing tools and are typically used by rescue organizations, such as the fire department or the technical support service, but also used by special forces. In order to achieve a rapid operational readiness of such rescue or emergency tools, it is endeavored to make these technical aids portable or portable and thus implement them as light as possible.
- the hydraulic units for activating the hydraulic rescue tools increasingly by electrochemical energy storage, in particular by accumulators, operable.
- Generic battery-operated hydraulic units for hydraulic rescue tools which should be portable or operable by only one person hydraulic units are available from the applicant in a plurality of versions.
- the respective hydraulically actuated tools are permanently attached or mounted on the portable, battery-powered hydraulic unit.
- the corresponding rescue tool can be operated by ergonomic as possible handles or handle sections from only one person and used appropriately.
- the basic technical structure of a generic, previously known rescue tool is also disclosed, for example, in WO 2016/119819 A1.
- the present invention has for its object to provide an improved hydraulic rescue tool, in particular to further optimize its handling and still achieve the highest possible performance.
- This object of the invention is achieved by a generic hydraulic unit with the characterizing features of claim 1, and by a rescue tool according to claim 12.
- Characterized in that the electric motor of the portable, battery-powered hydraulic unit is formed by a pancake motor whose parallel to the longitudinal axis of its output shaft extending axial length is dimensioned shorter than its outer diameter, can be a relatively compact, in particular with respect to its longitudinal extent relatively short-building hydraulic unit and thus ultimately a relatively short-lived rescue tool will be created.
- the rescue tool overall can have a relatively short overall length, since at least the hydraulic unit flanged thereto or fixedly coupled can have a relatively short structural length, it is possible to use the rescue tool even in confined spaces. Such cramped places can be present for example between the body pillars of a car. Other places of use in which there is limited space available can also be better handled with the rescue tool as short as possible.
- a particular advantage of the measures according to the invention lies in the fact that the pancake motor for driving the hydraulic pump has a favorable power to weight, so at a certain drive power has a relatively low mass. This is particularly advantageous in connection with the simplest possible portability or ergonomics of the rescue tool. For example, this rescue operations or other situations can be performed as quickly and easily.
- Another advantage of the measures according to the invention lies in an improved constructional assignability to the hydraulic components of the hydraulic unit, in particular with respect to its hydraulic tank or hydraulic pump.
- an optimized, structural interaction or grouping between said hydraulic components and the electric drive of the mobile or portable hydraulic unit formed by a pancake motor can thereby be achieved.
- the pancake motor is designed as an external rotor motor with internal fixed stator and external, rotatable rotor.
- the running on the rotor output shaft of this disc rotor motor it passes through the stator in the axial direction of the output shaft.
- the outer shell or partial section of the pancake motor is rotatable or designed as a rotor.
- this drive motor is arranged within a housing of the hydraulic unit, this does not create any hazards due to contact, and the risk of braking or grinding objects can also be virtually ruled out.
- a mechanically improved attachment of this drive motor is possible, after the rotating section occupies only a portion of the outer surface, in particular occupies at least the lateral surface and one of the end faces of the pancake motor.
- the pancake motor can therefore be adapted in terms of its mechanical assembly cut parts in a relatively simple manner specifically to its mounting counterpart, in particular to the conditions of the hydraulic tank or the hydraulic pump.
- the pancake motor can be designed as a so-called bell-rotor motor with a bell-shaped rotor.
- a bell-shaped rotor By the bell-shaped or in cross-section substantially U-shaped rotor, which at least partially bounds the substantially disc-shaped or likewise approximately bell-shaped stator, an optimized power to weight ratio of the pancake motor can be achieved. In particular, it is thereby possible to achieve an optimum ratio between performance and total mass, which is particularly advantageous in connection with portable rescue tools or in connection with the portable hydraulic units required for this purpose.
- a plurality of distributed arranged permanent magnets is executed, which permanent magnets interact with coil windings on the stator.
- These coil windings on the stator are provided for generating electromagnetic rotating fields.
- the generated electromagnetic rotating fields are preferably determined or controlled by an electronic commutation circuit.
- the pancake motor on the housing of the hydraulic tank in particular on a boundary wall or on a cover of the hydraulic tank, is directly attached.
- This also makes it possible to achieve a weight-optimized design of the hydraulic unit or of the rescue tool. In particular, this does not require that special mounting flanges or intermediate adapters are required for holding the electric drive.
- the direct attachment of the disc rotor motor on the hydraulic tank also favors the compactness and mechanical robustness of the hydraulic unit.
- the pancake motor offers in interaction with the hydraulic tank particular application advantages, after the relatively large end face of the pancake motor can substitute relatively large sections of the hydraulic tank, and thereby relevant or significant weight savings can be achieved.
- the first end wall of the pancake motor which is closest to the output stub shaft or the output stub of the pancake motor, to be fixedly screwed to the housing of the hydraulic tank via a plurality of fastening screws.
- the housing of the hydraulic tank offers high mechanical stability in order to be able to accommodate the pancake motor with sufficient stability or torsion-free in the outer housing of the entire hydraulic unit, which is typically formed from molded plastic.
- the screw connection between the pancake motor and the housing of the hydraulic tank is mounted or constructed starting from the second end wall of the disk drive motor opposite the first end wall. Consequently, the screw heads of fastening screws for fastening the pancake motor to the hydraulic tank are then arranged on the inside of the pancake motor facing the inside of its first end wall.
- This is a high strength, yet workable connection between the Disc rotor motor and the hydraulic tank realized.
- the hydraulic tank can thereby already be designed to be self-contained, and then the disc rotor motor can be screwed from the outside to the hydraulic tank via a plurality of fastening screws, wherein the fastening screws are inserted through the pancake motor and finally with their screw head on the inside of the first
- An opening of the housing of the hydraulic tank is thus not required for attachment or disassembly of the specified pancake motor.
- a particularly weight-optimized and minimized in terms of the number of required components execution of the hydraulic unit is achieved.
- the second end wall of the pancake motor opposite the first end wall is a component of the rotor, which second end wall has at least two apertures or cutouts, which is an insertion or screwing the fastening screws starting from the second end wall in a direction parallel to the output axis of the pancake motor, wherein the individual fastening screws are moved via the interior of the pancake motor in the direction of the inside of the first end wall of the pancake motor.
- the screw heads of the fastening screws are mounted quasi in the interior of the electric motor and is advantageously a screw connection of the pancake motor such that attachment takes place via its interior.
- the hydraulic tank between the disc rotor motor and the hydraulic pump is arranged and a connecting shaft is provided, which passes through an exemption, in particular a hydraulic fluid-free cavity or bridging channel in the hydraulic tank and which connecting shaft rotatably the disc rotor motor and the hydraulic pump coupled.
- Hydraulic tank positioned in an advantageous manner between said components.
- the compensating device for the volume changes of the amount of hydraulic fluid present in each hydraulic tank comprises an elastically flexible or elastically adjustable compensating diaphragm, which is arranged within the hydraulic tank and is movable relative to the interior of the hydraulic tank.
- this compensating device is preferably formed from an elastomeric material, for example from a rubber membrane, it is to be protected with regard to sharp edges or transitions. After no screw heads are provided for fixing the pancake motor within the hydraulic tank, a good protection for such a compensation membrane is basically created. In particular, it can be ensured by the above-mentioned screw fastening of the pancake motor relative to the hydraulic tank, that the compensation membrane is reliably protected against sharp-edged transitions and against gradual damage.
- At least one section of the first end wall of the pancake motor also forms a structural boundary section, possibly even a liquid-tight boundary or housing section of the hydraulic tank or the compensating device.
- at least one partial section of the housing of the hydraulic tank can be provided by a boundary wall, in particular by the end wall which is closest to the output shaft be formed of the pancake motor. This also allows a weight saving or a reduction of the required components of the hydraulic unit can be achieved.
- a weight saving is achieved, in particular, in that at least partial sections of the hydraulic tank are formed by housing or wall sections of the pancake motor.
- a weight saving can be achieved by eliminating at least partial sections of the next-lying associated housing wall of the hydraulic tank.
- FIG. 1 shows an embodiment of a hydraulic rescue tool in plan view.
- Fig. 2 shows the hydraulic unit of the rescue tool according to Fig. 1 in perspective
- FIG. 3 shows the hydraulic unit of Figure 2 in partial sectional view ..;
- Fig. 4a-d an embodiment of a pancake motor, as installed in the hydraulic unit of FIG. 2; a simplified half-section of a first embodiment of a fastening between a pancake motor and the hydraulic tank of the hydraulic unit;
- Fig. 6 is a simplified half section of another embodiment of a fastening between a pancake motor and the hydraulic tank of the hydraulic unit.
- Fig. 1 shows in plan view an embodiment of a hydraulic spreading tool, as it is often used to recover people from accident vehicles. Such a tool is also used for other Aufzwhack- or spreading.
- a hydraulic rescue tool 1 In addition to the spreading tool as scissors tools are known as generic tools.
- superordinate, such tools can be referred to as hydraulic rescue tools 1.
- the apparatus designated in its entirety as a rescue tool 1 in FIG. 1 essentially comprises a hydraulic unit 2 and a hydraulically actuated or controllably actuated tool 3 in the form of the said spreading device, a cutting device, a lifting device or the like.
- the mechanical-hydraulic tool 3 is coupled to the hydraulic unit 2 via a mechanical-hydraulic interface 4, as can also be seen in FIG. 2.
- This coupling is preferably a fixed or permanent coupling, which can only be solved with the aid of tools or only by Zerlege.
- a tool-free activatable and deactivatable interface is possible, but measures to avoid the loss of hydraulic fluid or to avoid air bubbles in the hydraulic circuit between the hydraulic tool 3 and the hydraulic unit 2 are provided.
- An overall length 5 of the rescue tool 1 is made up of the length 6 of the hydraulic unit 2 and the length 7 of the hydraulic tool 3 together.
- the length 7 of the hydraulic tool 3 is typically greater than the length 6 of the hydraulic unit 2. While the length 7 of the hydraulic tool 3 is essentially influenced by its performance or robustness, for example due to lever ratios or the underlying lever laws is the length 6 of the hydraulic unit 2 is not necessarily interacting with its performance.
- the handling or ergonomics of the rescue tool 1 can be improved in particular by the shortest possible lengths of the hydraulic unit 2, without causing any loss of performance, in particular with respect to the mechanical pressure or cutting forces of the tool 3. Therefore, the present solution is based on being able to perform the hydraulic unit 2 with the shortest possible length 6, without affecting the performance of the rescue tool 1 or without affecting the performance of the hydraulic unit 2.
- the spreading tool 3 shown by way of example comprises two spreading arms 8, 9, which are articulated to a base body 10 and can perform an opening and closing movement via a hydraulic cylinder, not shown.
- On the base body 10 of the tool 3 is advantageously at least one handle 11, 12 is formed, which is provided for the most ergonomic and safe guiding or holding the rescue tool 1 by a rescuer.
- the portable and net self-contained rescue tool 1, in particular its hydraulic unit 2 has at least one electromechanical interface 15, which is provided for on-demand coupling and decoupling of at least one battery pack 16, as this was exemplified in Figs. 2, 3.
- the at least one battery pack 16 is provided in the properly attached or plugged state, as can be seen in FIGS. 2, 3, for the electrical power supply of the hydraulic rescue tool 1. 2, 3, the portable, battery-powered hydraulic unit 2 comprises an electric motor 17 that can be operated by the electrical energy of the battery pack 16 for driving a hydraulic pump 18 of the hydraulic unit 2.
- this electric motor 17 is provided by a pancake motor 19 formed.
- a pancake motor 19 has a parallel to the longitudinal axis 20 of its output shaft 21 extending, axial length 22 which is smaller or shorter than an outer diameter 23 of the pancake motor 19 is, as shown in Fig. 3 or in Fig. 4d is.
- disc rotor motors 19 have a relatively large ratio between outer diameter 23 and axial length 22 compared to conventional electric motors.
- this ratio between the outer diameter 23 of the disc rotor motor 19 used and its axial length 22 is greater than 1, in particular greater than 1.5. According to a practical embodiment, this ratio is approximately equal to 2.
- the pancake motor 19 is rotationally connected to the hydraulic pump 18 directly, that is, without intervening transmission.
- a drive shaft for this purpose, a drive shaft
- the hydraulic pump 18 serves as a high-pressure pump for hydraulic fluids, in particular for hydraulic oil, and may be formed for example by an eccentric pump or the like.
- a hydraulic tank 25, which is provided for storing or receiving a sufficient amount of hydraulic fluid and is provided in particular for supplying the hydraulic tools 3 with the working medium, is in relation to the longitudinal axis of the hydraulic rescue tool 1 between the pancake motor 19 and the hydraulic pump 18th positioned.
- the hydraulic pump 18 is disposed immediately adjacent, and on the other hand, the pancake motor 19 immediately adjacent to the hydraulic tank
- the hydraulic tank 25 defines the central mounting or fastening element on the one hand for the pancake motor 19 and on the other hand, that is opposite, for the hydraulic pump 18.
- the hydraulic tank 25 is associated with a compensating device 26 for hydraulic fluid, in particular arranged within the hydraulic tank 25.
- a balancing device 26 typically includes an elastically resilient or elastically adjustable balancing diaphragm 27 disposed within the hydraulic tank 25 and movable relative to the interior of the hydraulic tank 25 depending on the volume of hydraulic fluid in the hydraulic tank 25.
- elastically variable volumes are created within the hydraulic tank 25, which prevent an undesirable escape of hydraulic fluid from vent openings during the filling and removal operations of hydraulic fluid with respect to the hydraulic tank 25.
- At least one manually operated hydraulic control valve 28-FIG. 3 - is provided on the hydraulic unit 2.
- This hydraulic control valve 28 can be converted by at least one actuating element 29, for example, a rocker switch, in the respective valve positions, in particular in alternating flow and blocking positions.
- the at least one actuating element 29 changes piston or slide positions in the control valve 28.
- the hydraulic pressure which can be generated via the hydraulic pump 18 can thereby be supplied in a controlled manner via the control valve 28 and via fluid passages 30 of the hydraulic unit 2 to a hydraulic cylinder of the tool 3 (not shown) or be returned therefrom.
- FIGS. 4a to 4d an advantageous embodiment of a disc rotor motor 19 for driving the hydraulic pump 18 of the hydraulic unit 2 is illustrated.
- This pancake motor 19 is designed as a so-called external rotor motor. That is, it has an at least partially internal, fixed stator 31, which is at least partially surrounded by an external, rotatable rotor 32, as best seen in Fig. 4d.
- the output shaft 21 of the pancake motor 19 embodied or mounted on the rotatable rotor 32 passes through its stator 31 with respect to the axial direction or longitudinal axis 20 of its output shaft 21.
- the pancake motor 19 is designed as a so-called bell-type rotor.
- Engine is designed, which has a substantially bell-shaped or in cross-section substantially U-shaped rotor 32.
- the substantially hollow-cylindrical shell portion of the rotor 32 surrounds the cylindrical outer surface or outer contour of the stator 31, as best seen in FIGS. 4a-d.
- the pancake motor 19 has a plurality of distributed permanent magnets 33 with respect to the circumference or with respect to the circumferential direction of the rotor 32.
- This plurality of permanent magnets 33 on the rotor 32 are in this case with exciter or coil windings - not shown - on the stator 31 in interaction.
- the coil windings (not shown), which are associated with the pole shoes of the stator 31 shown in FIGS. 4a, 4b and 4c, serve to generate electromagnetic rotating fields, thereby determining the respective rotational speed and direction of rotation of the disk motor 19.
- these rotary fields or the corresponding three-phase currents are generated by an electronic commutation circuit 34 shown schematically in FIG. 3.
- the pancake motor 19 is thus preferably designed brushless or without sliding contacts and therefore requires very little maintenance.
- the pancake motor 19 is attached to the preferably metallic housing 35 of the hydraulic tank 25.
- a separate holding plate 36 may be provided, which is screwed on the one hand to the pancake motor 19 and on the other hand connected to the housing 35 of the hydraulic tank 25, in particular positively connected and / or screwed, as best seen in FIG is.
- This holding plate 36 acts as a separate adapter or coupling element between the pancake motor 19 and the housing 35 of the hydraulic tank 25.
- the pancake motor 19 is directly attached to the housing of the hydraulic tank 25, ie without an intermediate adapter or holding plate 36 is mounted, as shown in FIGS. 5, 6 can be seen.
- the first end wall 37 of the pancake motor 19 next to the output shaft 21 is fixedly screwed to the housing 35 of the hydraulic tank 25.
- This first end wall 37 of the pancake motor 19 is part of the stator 31 and is thus penetrated by the output shaft 21 of the pancake motor 19, as shown in FIGS. 5 and 6 can be seen schematically.
- a plurality of circumferentially or around the output shaft 21 distributed mounting screws 38 are provided which serve to connect the pancake motor 19 and of the stator 31 to the hydraulic tank 25.
- screw connection between the disc rotor motor 19 and the housing 35 of the hydraulic tank 25 is mounted starting from the second end wall 39 of the pancake motor 19, which is opposite the first end wall 37, or takes place therefrom.
- screw heads 40 of the fastening screws 38 for the pancake motor 19 are then arranged on the inside 41 of the first end wall 37 facing the interior or the inside of the pancake motor 19. This makes it possible to spare additional adapter or holding plates for connecting the pancake motor 19 to the hydraulic tank 25.
- the second end wall 39 of the pancake motor 19 opposite the first end wall 37, which second end wall 39 forms part of the Rotor 32 is, at least two openings 41, 42, in particular at least two diametrically opposite openings 41, 42 or corresponding exemptions has, as can also be seen from Fig. 4b.
- These at least two openings 41, 42 or corresponding exemptions in the second end wall 39 of the disc rotor motor 19 are provided for insertion of the fastening screws 38 starting from the second end wall 39 in the direction parallel to the output shaft 21.
- the fastening screws 38 can be inserted into the interior of the pancake motor 19 via these openings 41, 42 and ultimately lie against the inside 41 of the first end wall 37 in a load-transmitting manner, as can be seen in FIGS. 4 d, 5 and 6.
- the first end wall 37 which functions as part of the stator 31, can also be designed as a boundary wall or as a partial section of the hydraulic tank 25.
- a split embodiment of the first end wall 37 is provided according to FIG. 6, which forms a positive motor flange in order to be able to couple this disc rotor motor 19 centered with the hydraulic tank 25.
- the first end wall 37 of the disc rotor motor 19 may also be expedient if at least one partial section or individual zones of the first end wall 37 of the disc rotor motor 19 form a limiting section of the hydraulic tank 25.
- the first end wall 37 of the pancake motor 19 can thereby define at least one partial section of the cover or another boundary wall of the housing 35 of the hydraulic tank 25.
- the compensation device 26 or the corresponding compensation membrane 27 - Fig. 3 - it is not absolutely necessary that the transition between the pancake motor 19 and between the first end wall 37 and the housing 35 of the hydraulic tank 25 is made liquid-tight. The tightness with respect to the stock held hydraulic fluid is ensured in a simple manner by the compensation membrane 27, as shown in Fig. 3 by way of example.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Hydraulic Motors (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21166816.5A EP3862052B1 (de) | 2017-06-12 | 2018-06-07 | Hydraulikaggregat für hydraulische rettungswerkzeuge sowie damit ausgestattetes rettungswerkzeug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50489/2017A AT520046B1 (de) | 2017-06-12 | 2017-06-12 | Hydraulikaggregat für hydraulische Rettungswerkzeuge sowie damit ausgestattetes Rettungswerkzeug |
PCT/AT2018/060118 WO2018227222A1 (de) | 2017-06-12 | 2018-06-07 | Hydraulikaggregat für hydraulische rettungswerkzeuge sowie damit ausgestattetes rettungswerkzeug |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21166816.5A Division EP3862052B1 (de) | 2017-06-12 | 2018-06-07 | Hydraulikaggregat für hydraulische rettungswerkzeuge sowie damit ausgestattetes rettungswerkzeug |
Publications (2)
Publication Number | Publication Date |
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EP3638378A1 true EP3638378A1 (de) | 2020-04-22 |
EP3638378B1 EP3638378B1 (de) | 2021-04-07 |
Family
ID=62975771
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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EP18742897.4A Active EP3638378B1 (de) | 2017-06-12 | 2018-06-07 | Hydraulikaggregat für hydraulische rettungswerkzeuge sowie damit ausgestattetes rettungswerkzeug |
EP21166816.5A Active EP3862052B1 (de) | 2017-06-12 | 2018-06-07 | Hydraulikaggregat für hydraulische rettungswerkzeuge sowie damit ausgestattetes rettungswerkzeug |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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EP21166816.5A Active EP3862052B1 (de) | 2017-06-12 | 2018-06-07 | Hydraulikaggregat für hydraulische rettungswerkzeuge sowie damit ausgestattetes rettungswerkzeug |
Country Status (7)
Country | Link |
---|---|
US (3) | US11273547B2 (de) |
EP (2) | EP3638378B1 (de) |
CN (1) | CN110636888B (de) |
AT (1) | AT520046B1 (de) |
DE (1) | DE212018000163U1 (de) |
RU (1) | RU2756943C2 (de) |
WO (1) | WO2018227222A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022201368A1 (de) | 2022-02-10 | 2023-08-10 | Robert Bosch Gesellschaft mit beschränkter Haftung | Pumpvorrichtung mit Kupplung für Antriebsvorrichtung |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4245467B1 (de) * | 2018-06-26 | 2024-05-22 | Lukas Hydraulik GmbH | Tragbares arbeitsgerät für den portablen einsatz |
AT523567B1 (de) | 2020-03-10 | 2023-07-15 | Weber Hydraulik Gmbh | Mobiles Rettungsgerät, sowie computerimplementiertes Verfahren zur Diebstahlsicherung des mobilen Rettungsgerätes |
AT523566A1 (de) | 2020-03-10 | 2021-09-15 | Weber Hyraulik Gmbh | Verfahren zum Betreiben eines Rettungssystems mit einem mobilen Rettungsgerät |
CN111469098A (zh) * | 2020-03-28 | 2020-07-31 | 林仁义 | 一种全能型电动液压工具的动力结构 |
WO2021213675A1 (de) * | 2020-04-24 | 2021-10-28 | Lukas Hydraulik Gmbh | Hydraulisches arbeitsgerät |
AT525756B1 (de) * | 2022-02-14 | 2023-07-15 | Weber Hydraulik Gmbh | Tragbares Arbeitsgerät für den Unterwassereinsatz |
Family Cites Families (40)
Publication number | Priority date | Publication date | Assignee | Title |
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CH618335A5 (de) | 1977-05-31 | 1980-07-31 | Arnegger Richard E | |
US4392263A (en) | 1981-02-02 | 1983-07-12 | Amoroso Michael J | Portable rescue tool |
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2017
- 2017-06-12 AT ATA50489/2017A patent/AT520046B1/de active
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2018
- 2018-06-07 DE DE212018000163.4U patent/DE212018000163U1/de active Active
- 2018-06-07 CN CN201880033281.7A patent/CN110636888B/zh active Active
- 2018-06-07 RU RU2020100075A patent/RU2756943C2/ru active
- 2018-06-07 EP EP18742897.4A patent/EP3638378B1/de active Active
- 2018-06-07 WO PCT/AT2018/060118 patent/WO2018227222A1/de active Search and Examination
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022201368A1 (de) | 2022-02-10 | 2023-08-10 | Robert Bosch Gesellschaft mit beschränkter Haftung | Pumpvorrichtung mit Kupplung für Antriebsvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
US20230219208A1 (en) | 2023-07-13 |
DE212018000163U1 (de) | 2019-10-04 |
RU2020100075A3 (de) | 2021-08-18 |
EP3638378B1 (de) | 2021-04-07 |
US11273547B2 (en) | 2022-03-15 |
EP3862052B1 (de) | 2024-04-24 |
US20210316437A1 (en) | 2021-10-14 |
EP3862052C0 (de) | 2024-04-24 |
AT520046A1 (de) | 2018-12-15 |
WO2018227222A1 (de) | 2018-12-20 |
CN110636888B (zh) | 2021-05-25 |
US20220161410A1 (en) | 2022-05-26 |
EP3862052A1 (de) | 2021-08-11 |
RU2756943C2 (ru) | 2021-10-07 |
RU2020100075A (ru) | 2021-07-13 |
CN110636888A (zh) | 2019-12-31 |
BR112019026345A2 (pt) | 2020-07-21 |
US11738440B2 (en) | 2023-08-29 |
AT520046B1 (de) | 2022-10-15 |
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