发明名称 |
Advancing system for coal winning machine |
摘要 |
The advancing system for a coal winning machine comprises a guide installed along a face conveyor, and an advancing mechanism connected with the machine. The advancing mechanism is accommodated in a separate housing and has at least two successively communicating pairs of advancing hydraulic cylinders with slides hinged to each of said cylinders. The guide is provided with rack-type engagement elements and secured to the end heads of the face conveyor. Each one of the slides has grips for holding on the guide, and a hydraulic cylinder. Each hydraulic cylinder of the slides is connected to its fixing bar the latter being installed with a provision for being arranged and fixed between the engagement elements of the guide.
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申请公布号 |
US4768835(A) |
申请公布日期 |
1988.09.06 |
申请号 |
US19860919138 |
申请日期 |
1986.10.15 |
申请人 |
GOSUDARSTVENNY PROEKTNOKONSTRUKTORSKY I EXPERIMENTALNY INSTITUT UGOLNOGO MASHINOSTROENIA |
发明人 |
KALANTAROV, BORIS B.;MARKOV, ANATOLY P.;STEPANOV, NIKOLAI I.;PUKIS, ALEXANDR A.;FEDOTOV, EDUARD I. |
分类号 |
E21C29/02;E21C29/12;(IPC1-7):E21C29/00 |
主分类号 |
E21C29/02 |
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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