发明名称 |
Casing for noise attenuation in a rock drilling rig |
摘要 |
A rock drilling rig includes a movable carrier with a boom attached to it and movable in various ways. The free end of the boom is provided with drilling equipment. The drilling equipment is enclosed in a casing that prevents noise generated during drilling from spreading to the surroundings. The casing is arranged to move together with a feed beam and relative to the cradle mounted on the end of the boom. A flexible noise attenuating skirt projects forwardly from a front end of the casing for forming a sealed chamber around a drilling head.
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申请公布号 |
US6199656(B1) |
申请公布日期 |
2001.03.13 |
申请号 |
US19990407766 |
申请日期 |
1999.09.29 |
申请人 |
SANDVIK AB |
发明人 |
VENTO ARTO;TANTARI JUKKA;SAARINEN KARI;JULKUNEN PASI;LINTU VEIKKO;PELTOLA SEPPO;SORMUNEN TAPANI |
分类号 |
E21B12/00;E21B7/02;E21B15/00;E21B19/08;E21B41/00;(IPC1-7):G10K11/04 |
主分类号 |
E21B12/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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