发明名称 |
BERGBORRANORDNING |
摘要 |
A rotary hammer comprising a casing (1) accommodating a rotary drive (2) having a protective clutch in which one of the clutch members (5) has a non-round hole (6) and mounts an adjusting nut (8) and a bushing (13) with a non-round hole (14), the hammer drill also comprising a removable key (21) for adjusting the torque of the protective clutch, the key having a shaft (22) having a non-round portion (24) at the end thereof and corresponding to the non-round hole (6) and a sleeve (25) surrounding the shaft (22) which also has a non-round portion (26) corresponding to the non-round hole (14) of the bushing (13). <IMAGE> |
申请公布号 |
SE8403432(D0) |
申请公布日期 |
1984.06.27 |
申请号 |
SE19840003432 |
申请日期 |
1984.06.27 |
申请人 |
VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I ISPYTATELNY INSTIT.. |
发明人 |
1)J N * KOLGAN;2)S A * SAPOZHNIKOV;3)V P * BALANDIN;4)I A * PROKHOROV |
分类号 |
E21B1/38;B23B45/16;B25D17/28;E21B3/035;E21B6/00 |
主分类号 |
E21B1/38 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|