EP2532480A3 - Electro-hydraulic pressing device - Google Patents

Electro-hydraulic pressing device Download PDF

Info

Publication number
EP2532480A3
EP2532480A3 EP12170849.9A EP12170849A EP2532480A3 EP 2532480 A3 EP2532480 A3 EP 2532480A3 EP 12170849 A EP12170849 A EP 12170849A EP 2532480 A3 EP2532480 A3 EP 2532480A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic
electro
pressing device
pressing
hydraulic pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12170849.9A
Other languages
German (de)
French (fr)
Other versions
EP2532480A2 (en
Inventor
Dipl.-Ing. Sven Meyer
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.)
Novopress GmbH Pressen und Presswerkzeuge and Co KG
Original Assignee
Novopress GmbH Pressen und Presswerkzeuge and Co KG
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 Novopress GmbH Pressen und Presswerkzeuge and Co KG filed Critical Novopress GmbH Pressen und Presswerkzeuge and Co KG
Publication of EP2532480A2 publication Critical patent/EP2532480A2/en
Publication of EP2532480A3 publication Critical patent/EP2532480A3/en
Withdrawn legal-status Critical Current

Links

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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders

Abstract

Ein elektrohydraulisches Pressgerät, das insbesondere zum Verpressen von Rohrfittings geeignet ist, weist mehrere relativ zueinander bewegbare Pressbacken (18) auf. Die Bewegung einer der Pressbacken (18) erfolgt über eine Hydraulikeinheit (16). Die Hydraulikeinheit (16) wird über eine Hydraulikpumpe (12) gespeist, die zum Fördern von Hydraulikfluid mit einem Elektromotor (10) verbunden ist. Durch die Hydraulikpumpe (12) wird Fluid aus einem Reservoir (14) in eine Druckkammer der Hydraulikeinheit (16) gepumpt. Die erfindungsgemäße Hydraulikpumpe (12) weist mindestens zwei jeweils in einem Zylinderraum (22) angeordnete Förderkolben (20) auf.

Figure imgaf001
An electro-hydraulic pressing device, which is particularly suitable for pressing pipe fittings, has a plurality of pressing jaws (18) which are movable relative to one another. The movement of the pressing jaws (18) via a hydraulic unit (16). The hydraulic unit (16) is fed via a hydraulic pump (12) which is connected to an electric motor (10) for conveying hydraulic fluid. Fluid is pumped from a reservoir (14) into a pressure chamber of the hydraulic unit (16) by the hydraulic pump (12). The hydraulic pump (12) according to the invention has at least two delivery pistons (20) each arranged in a cylinder space (22).
Figure imgaf001
EP12170849.9A 2011-06-10 2012-06-05 Electro-hydraulic pressing device Withdrawn EP2532480A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201120101675 DE202011101675U1 (en) 2011-06-10 2011-06-10 Electrohydraulic pressing device

Publications (2)

Publication Number Publication Date
EP2532480A2 EP2532480A2 (en) 2012-12-12
EP2532480A3 true EP2532480A3 (en) 2014-05-28

Family

ID=46197139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12170849.9A Withdrawn EP2532480A3 (en) 2011-06-10 2012-06-05 Electro-hydraulic pressing device

Country Status (2)

Country Link
EP (1) EP2532480A3 (en)
DE (1) DE202011101675U1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT520046B1 (en) 2017-06-12 2022-10-15 Weber Hydraulik Gmbh Hydraulic unit for hydraulic rescue tools and rescue tools equipped therewith
EP4005733A1 (en) * 2020-11-27 2022-06-01 Hilti Aktiengesellschaft Eccentric transmission for a machine tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559838A (en) * 1983-10-06 1985-12-24 Neuenschwander Victor L Scotch yoke piston and crankshaft connection with floating crank pin
JPH04210386A (en) * 1990-11-30 1992-07-31 Japan Storage Battery Co Ltd Motor-driven force-fitting tool with automatic speed change mechanism
US5195354A (en) * 1989-03-31 1993-03-23 Japan Storage Battery Co., Ltd. Cam crank mechanism and motor driven hydraulic tool
DE102009027576A1 (en) * 2009-07-09 2011-01-13 Robert Bosch Gmbh High-pressure fuel pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644383A1 (en) * 1989-03-14 1990-09-21 Beaudon Gerard Tooling for carrying out various operations, particularly crimping
US5477680A (en) * 1994-09-13 1995-12-26 Burndy Corporation Motor driven hydraulic tool with variable displacement hydraulic pump
DE202009015515U1 (en) * 2009-11-17 2011-04-07 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Hand-held pressing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559838A (en) * 1983-10-06 1985-12-24 Neuenschwander Victor L Scotch yoke piston and crankshaft connection with floating crank pin
US5195354A (en) * 1989-03-31 1993-03-23 Japan Storage Battery Co., Ltd. Cam crank mechanism and motor driven hydraulic tool
JPH04210386A (en) * 1990-11-30 1992-07-31 Japan Storage Battery Co Ltd Motor-driven force-fitting tool with automatic speed change mechanism
DE102009027576A1 (en) * 2009-07-09 2011-01-13 Robert Bosch Gmbh High-pressure fuel pump

Also Published As

Publication number Publication date
DE202011101675U1 (en) 2012-09-13
EP2532480A2 (en) 2012-12-12

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