SE7514198L - MOTOR-POWERED TOOL FOR SCREWING AT PRESSURE TANKS. - Google Patents

MOTOR-POWERED TOOL FOR SCREWING AT PRESSURE TANKS.

Info

Publication number
SE7514198L
SE7514198L SE7514198A SE7514198A SE7514198L SE 7514198 L SE7514198 L SE 7514198L SE 7514198 A SE7514198 A SE 7514198A SE 7514198 A SE7514198 A SE 7514198A SE 7514198 L SE7514198 L SE 7514198L
Authority
SE
Sweden
Prior art keywords
stud bolts
fastening nuts
clamping
stud
drive
Prior art date
Application number
SE7514198A
Other languages
Swedish (sv)
Other versions
SE416714B (en
Inventor
M Scholz
Original Assignee
Kraftwerk Union Ag
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 Kraftwerk Union Ag filed Critical Kraftwerk Union Ag
Publication of SE7514198L publication Critical patent/SE7514198L/en
Publication of SE416714B publication Critical patent/SE416714B/en

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
    • B25B29/00—Accessories
    • B25B29/02—Bolt tensioners
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C13/00—Pressure vessels; Containment vessels; Containment in general
    • G21C13/02—Details
    • G21C13/06—Sealing-plugs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

The apparatus consists of a supporting body (7) which can be put onto the flange of the cover (2) in a vertically adjustable manner and of clamping and releasing units, mounted on the supporting body (7), for the stud bolts (6) and fastening nuts (6.2) forming the cover bolting. When the apparatus is put on, drive pinions (9) of a rotary nut drive (10) engage in the external teeth (6.5) of the fastening nuts (6.2), and the free stud-bolt ends are coupled to gripping bodies (12). Furthermore, hydraulic clamping cylinders (13) are provided for axially extending the stud bolts (6) by axially loading the gripping bodies (12) via servo piston (13.1) during the unscrewing and tightening of the fastening nuts (6.2). The latter together with their stud bolts (6) can be unscrewed and removed with the apparatus. The clamping and releasing units are here provided with lifting and bearing means (15, 16), which can be controlled in engagement with regard to the stud bolts (6), in order to form a rotatable bearing arrangement relieving the weight for the thread turns, allocated to one another, of the stud bolts (6) and the pressure vessel, and, in addition to the rotary nut drive (10), the clamping and releasing units have a rotary drive (17) which can be brought into frictional engagement with the stud bolts (6). With this apparatus, it is possible to release not only the fastening nuts but also the stud bolts and then remove the entire cover bolting. <IMAGE>
SE7514198A 1974-12-17 1975-12-16 SCREW AND TRANSPORT DEVICE FOR PINNBULTAR SE416714B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2459645A DE2459645C2 (en) 1974-12-17 1974-12-17 Screwing and transport device for a screwed cover of a pressure vessel, in particular a nuclear reactor pressure vessel, consisting of studs and associated fastening nuts

Publications (2)

Publication Number Publication Date
SE7514198L true SE7514198L (en) 1976-06-18
SE416714B SE416714B (en) 1981-02-02

Family

ID=5933638

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7514198A SE416714B (en) 1974-12-17 1975-12-16 SCREW AND TRANSPORT DEVICE FOR PINNBULTAR

Country Status (13)

Country Link
JP (1) JPS5850830B2 (en)
BE (1) BE836577A (en)
BR (1) BR7507721A (en)
CA (1) CA1038208A (en)
CH (1) CH613144A5 (en)
DE (1) DE2459645C2 (en)
ES (1) ES443573A1 (en)
FR (1) FR2294795A1 (en)
GB (1) GB1506654A (en)
IT (1) IT1050793B (en)
NL (1) NL179635C (en)
SE (1) SE416714B (en)
SU (1) SU839437A3 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2364529A1 (en) * 1976-09-11 1978-04-07 Kloeckner Werke Ag TIGHTENING AND UNSCREWING DEVICE FOR OPENING AND CLOSING THE LID OF A NUCLEAR REACTOR TANK
FR2367574A1 (en) * 1976-10-15 1978-05-12 France Etat Automatic insertion and removal of heavy gudgeon bolts - by machine with fully synchronised tightening and slackening procedure
DE2749536C3 (en) * 1977-11-03 1980-09-04 Kraftwerk Union Ag, 4330 Muelheim Arrangement for measuring the preload of a screw bolt used in particular to close a reactor pressure vessel
DE2814072A1 (en) * 1978-03-30 1979-10-11 Kraftwerk Union Ag Bolt tensioner for clamping pressure vessel cover - has nut running unit and hydraulically actuated piston which seats around bolts
JPS5659698U (en) * 1979-10-16 1981-05-21
US4523742A (en) * 1982-01-25 1985-06-18 Gripper, Inc. Apparatus for tensioning a stud and method of doing same
GB2124119A (en) * 1982-06-26 1984-02-15 Hydra Tight Ltd A hydraulic bolt tensioning tool with power drive for rotating a nut
JPS59155315U (en) * 1983-04-05 1984-10-18 三菱重工業株式会社 Bolt tightening device
JPS59171038U (en) * 1983-04-28 1984-11-15 石川島播磨重工業株式会社 Nut attachment/detachment device
FR2564767B1 (en) * 1984-05-24 1986-10-10 Kley France MACHINE FOR SCREWING AND UNSCREWING A STRETCHED STUD
FR2631868B1 (en) * 1988-05-25 1990-09-21 Framatome Sa DEVICE AND METHOD FOR SCREWING AND SCREWING A NUT ONTO A CONNECTING ELEMENT
JPH02286326A (en) * 1989-04-28 1990-11-26 Takenaka Komuten Co Ltd Structure of coating on concrete body
CN111531355A (en) * 2020-05-09 2020-08-14 上海硕大电子科技有限公司 Device and method for installing sealing ring
CN111554415B (en) * 2020-05-15 2022-02-11 中国核动力研究设计院 Guide positioning structure for assembling top cover and container of reactor pressure vessel
CN111958539A (en) * 2020-08-10 2020-11-20 彭珍 Automatic installation equipment that adds of bearing O type circle
CN112025280A (en) * 2020-08-18 2020-12-04 湖州爆米花信息科技有限公司 Bolt assembling machine for steam fittings
CN111998178A (en) * 2020-08-29 2020-11-27 中电诚达医药工程设计(河北)有限公司 Convenient equipment maintenance entry structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2258859A1 (en) * 1972-12-01 1974-06-12 Masch Und Bohrgeraete Fabrik HYDRAULIC CLAMPING DEVICE
DE7247233U (en) * 1972-12-23 1974-06-06 Kloeckner Werke Ag Screw tensioning device

Also Published As

Publication number Publication date
JPS5186820A (en) 1976-07-29
DE2459645C2 (en) 1983-12-08
ES443573A1 (en) 1977-08-16
GB1506654A (en) 1978-04-05
NL179635B (en) 1986-05-16
BR7507721A (en) 1976-09-08
BE836577A (en) 1976-04-01
SE416714B (en) 1981-02-02
CH613144A5 (en) 1979-09-14
NL7511883A (en) 1976-06-21
DE2459645A1 (en) 1976-07-01
JPS5850830B2 (en) 1983-11-12
FR2294795B1 (en) 1980-09-19
NL179635C (en) 1986-10-16
FR2294795A1 (en) 1976-07-16
SU839437A3 (en) 1981-06-15
IT1050793B (en) 1981-03-20
CA1038208A (en) 1978-09-12

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