发明名称 |
VERFAHREN ZUM ANZIEHEN UND/ODER LOESEN VON BOLZEN UND VORRICHTUNG DAFUER. |
摘要 |
The invention relates to a method and to apparatus for tightening and slackening bolts by hydraulic tensioning. The apparatus comprises a tightening system (60) applied to the bolts to be tightened and/or slackened, controlled by a central unit (24), via the intermediary of a control device (26) and a hydraulic pump (28). Transducers (19 and 18) permit respectively measurement of the effective strain of the bolt and the pressure effectively applied to the tightening system (60). A correlation between the effective strain of the bolt and the pressure effectively applied is thus effected for obtaining a very good precision of the strain. Application is to mechanical construction in the nuclear environment. |
申请公布号 |
DE3669678(D1) |
申请公布日期 |
1990.04.26 |
申请号 |
DE19863669678 |
申请日期 |
1986.11.19 |
申请人 |
EG & G SEALOL, MAUREPAS, YVELINES, FR |
发明人 |
GALARD, MICHEL, F-78910 TACOIGNIERES, FR |
分类号 |
B23P19/06;B25B29/02;(IPC1-7):B25B29/02 |
主分类号 |
B23P19/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|