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Title:
MULTI-LEVEL PROTECTION SEALING TELESCOPIC SHAFT SLEEVE RECIPROCATING IMPACT PORTION
Document Type and Number:
WIPO Patent Application WO/2017/101888
Kind Code:
A1
Abstract:
A multi-level protection sealing telescopic shaft sleeve reciprocating impact portion, comprising a multi-level protection guiding shaft box (1), a crankshaft (2), a connecting rod (3), a guiding impact piece (4), a guiding piece (5) and main reciprocating teeth (6). The multi-level protection guiding shaft box supports the guiding piece, the guiding piece supports the guiding impact piece to guide the guiding impact piece, the crankshaft is connected to the connecting rod, the crankshaft drives the connecting rod, the connecting rod drives the guiding impact piece to impact in a reciprocating manner, one end or two ends of the guiding impact piece extend outside the multi-level protection guiding shaft box, the multi-level protection guiding shaft box having a guiding impact piece extending end is provided with a multi-level protection sealing telescopic shaft sleeve (7), the guiding impact piece comprises a guiding rod sealing section (8), the shape of the cross section of the inner diameter of the multi-level protection sealing telescopic shaft sleeve matches that of the outer diameter of the guiding rod sealing section, and a guiding rod sealing box section matches a box sealing piece to prevent dust, mud, material etc. from entering the box. The structure reduces on-site maintenance, saves maintenance costs, and significantly increases the service life and practical efficiency of a reciprocating mining machine.

Inventors:
LIU, Suhua (Zhang Shide, Document Office No.1 Zhenxing Road, Xinyan Tow, Yanzhou Shandong 0, 272100, CN)
Application Number:
CN2017/071636
Publication Date:
June 22, 2017
Filing Date:
January 19, 2017
Export Citation:
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Assignee:
LIU, Suhua (Zhang Shide, Document Office No.1 Zhenxing Road, Xinyan Tow, Yanzhou Shandong 0, 272100, CN)
International Classes:
E21C35/00
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