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DE2500679A1 - Hydraulic motor actuated screwdriver - has driving pump and regulator valves for reversing and torque setting - Google Patents

Hydraulic motor actuated screwdriver - has driving pump and regulator valves for reversing and torque setting

Info

Publication number
DE2500679A1
DE2500679A1 DE19752500679 DE2500679A DE2500679A1 DE 2500679 A1 DE2500679 A1 DE 2500679A1 DE 19752500679 DE19752500679 DE 19752500679 DE 2500679 A DE2500679 A DE 2500679A DE 2500679 A1 DE2500679 A1 DE 2500679A1
Authority
DE
Germany
Prior art keywords
hydraulic
screwdriver
hydraulic motor
reversing
torque setting
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
DE19752500679
Other languages
German (de)
Inventor
Hans Guenter Wendt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19752500679 priority Critical patent/DE2500679A1/en
Publication of DE2500679A1 publication Critical patent/DE2500679A1/en
Pending 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/145—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

The hydraulically actuated screwdriver has a hydraulic motor which is driven by a pump. The motor drives a screwdriver or spanner by using an adjustable regulator valve and the pressure and flow rate regulator for changing the rotating direction. The maximum torque applied is set by the regulating valve. The regulating valve is connected to an adjustable pressure gauge and to a control valve for reversing rotating directions so that the required torque can be applied or released. A solenoid switch is provided on the tool handle for direct on and off switching. This hydraulic tool can be also used in conjunction with hydraulic units used for other purposes.

Description

Beschreibung zur Patentanmeldung Hydraulikschrauber Das Patent ist dadurch gekennzeichnet, daß durch ein hydraulisches Pumpenaggregat erzeugter Druck einen Hydraulikmotor speist, der direkt oder über einen Kraftschrauber oder Getriebe-Kraftschlüssel durch ein einstellbares druckbegrenztes regelventil in erbindung mit einem justierten Druck- und, Mengenregler und einem Steuerventil mit umkehrbarer Drehrichtung Schraubverbindungen anzieht bzw. löst. Description of the patent application hydraulic screwdriver The patent is characterized in that pressure generated by a hydraulic pump unit a hydraulic motor that feeds directly or via a power wrench or transmission power wrench by means of an adjustable pressure-limited control valve in conjunction with an adjusted one Pressure and volume regulator and a control valve with reversible direction of rotation screw connections attracts or loosens.

Durch diese Anordnung ist es möglich, beim Anziehen das Drehmoment bis zu der Hohe aurzubringen, die mit Hilfe des Regelventils bestimmt worden ist.This arrangement makes it possible to reduce the torque when tightening up to the height that has been determined with the aid of the control valve.

Der zusätzliche Anbau eines ftlagnetschalters gewährleistet, daß der Bedienende bei Überanstrengung mit dem Loslassen des Haltegriffes das Hydraulikaggregat ausschaltet bzw, wieder in Gang setzt.The additional installation of a ftlagnet switch ensures that the In the event of overexertion, operate the hydraulic unit by letting go of the handle switches off or starts up again.

Claims (5)

!\nsprüche! \ nproverbs 9 Hydraulikschrauber, dadurch gekennzeichnet, daß mittels eines hydraulischen Aggregates aufgebrachter Druck einen Hydraulikmotor betreibt (?), mit dem direkt oder indirekt Schrauben befestigt oder gelöst werden können.9 hydraulic screwdriver, characterized in that by means of a hydraulic The pressure applied to the aggregate operates a hydraulic motor (?), With which directly or indirectly screws can be attached or loosened. 2. Hydraulikechrauber nach Anspruch 1, dadurch gekennzeichnet, daß mittels eines einstellbaren druckbegrenzten Regeluentils (3) in Verbindung mit einem justierten I8nometer (6) (und einem Mengenregler) und einem Steuerventil mit umkehrbarer Drehrichtung (4) das erforderliche Drehmoment aufgebracht bzw.2. Hydraulic screwdriver according to claim 1, characterized in that by means of an adjustable pressure-limited control valve (3) in conjunction with a adjusted I8nometer (6) (and a flow regulator) and a control valve with reversible Direction of rotation (4) the required torque applied or gelöst werden kann. can be solved. 3. Hydraulikschrauber nach Anspruch 2, dadurch gekennzeichnet, daß am Haltegriff ein Magnetschalter (8) für das direkte Ein- oder Ausschalten angebracht ist.3. Hydraulic screwdriver according to claim 2, characterized in that A magnetic switch (8) is attached to the handle for direct switching on or off is. 4. Hydraulikschrauber nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß er in Verbindung mit bereits für andere Zwecke vorhandenen Hydraulikaggregaten verwandt werden kann.4. Hydraulic screwdriver according to claim 1 to 3, characterized in that that it can be used in conjunction with hydraulic units that are already available for other purposes can be used. 5. Hydraulikschrauber nach Anspruch 1 Lis 4, dadurch gekennzeichnet, daß in Verbindung mit einem Kreuz- oder Kugelgelenk AbweichWungen von der Übertragungsachse möglich sind.5. Hydraulic screwdriver according to claim 1 Lis 4, characterized in that that in connection with a universal joint or ball joint, deviations from the transmission axis possible are.
DE19752500679 1975-01-09 1975-01-09 Hydraulic motor actuated screwdriver - has driving pump and regulator valves for reversing and torque setting Pending DE2500679A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752500679 DE2500679A1 (en) 1975-01-09 1975-01-09 Hydraulic motor actuated screwdriver - has driving pump and regulator valves for reversing and torque setting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752500679 DE2500679A1 (en) 1975-01-09 1975-01-09 Hydraulic motor actuated screwdriver - has driving pump and regulator valves for reversing and torque setting

Publications (1)

Publication Number Publication Date
DE2500679A1 true DE2500679A1 (en) 1976-07-15

Family

ID=5936160

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752500679 Pending DE2500679A1 (en) 1975-01-09 1975-01-09 Hydraulic motor actuated screwdriver - has driving pump and regulator valves for reversing and torque setting

Country Status (1)

Country Link
DE (1) DE2500679A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418061A1 (en) * 1978-02-23 1979-09-21 Demag Ag HYDRAULIC SCREWDRIVER
DE2839798A1 (en) * 1978-09-13 1980-03-27 Cooper Ind Inc Swivel head reaction bar nut runner - has torque reaction bar attached to gear housing for movement w.r.t. air motor housing
DE2915361A1 (en) * 1979-04-14 1980-10-23 Wagner Maschf Paul Heinz Hydraulic power screw driver - has motor take=off shaft acting as swashplate shaft extending into planetary transmission
AU662288B3 (en) * 1994-11-03 1995-08-24 Devesfield Pty Ltd Apparatus for use in tapping pipes
WO2000071302A1 (en) * 1999-05-21 2000-11-30 Gammaflex S.R.L. Portable hydraulic wrench
FR2858783A1 (en) * 2003-08-13 2005-02-18 Airbus France TOOL FOR TIGHTENING / LOOSENING THROUGH BODY

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418061A1 (en) * 1978-02-23 1979-09-21 Demag Ag HYDRAULIC SCREWDRIVER
US4300641A (en) 1978-02-23 1981-11-17 Demag Aktiengesellschaft Torque responsive, dual speed rotary power driver
DE2839798A1 (en) * 1978-09-13 1980-03-27 Cooper Ind Inc Swivel head reaction bar nut runner - has torque reaction bar attached to gear housing for movement w.r.t. air motor housing
DE2915361A1 (en) * 1979-04-14 1980-10-23 Wagner Maschf Paul Heinz Hydraulic power screw driver - has motor take=off shaft acting as swashplate shaft extending into planetary transmission
AU662288B3 (en) * 1994-11-03 1995-08-24 Devesfield Pty Ltd Apparatus for use in tapping pipes
WO2000071302A1 (en) * 1999-05-21 2000-11-30 Gammaflex S.R.L. Portable hydraulic wrench
FR2858783A1 (en) * 2003-08-13 2005-02-18 Airbus France TOOL FOR TIGHTENING / LOOSENING THROUGH BODY
US7117764B2 (en) 2003-08-13 2006-10-10 Airbus France Screwed device tightening/untightening tool

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