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Patent Searching and Data


Title:
EXPANDING HEAD SUPPORT RING OIL PATH SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/032228
Kind Code:
A1
Abstract:
An expanding head support ring oil path system comprising a pull rod (8). A cone (3) is mounted on the outer circumferential surface of the pull rod. A wedge (5) that slides in tandem with the cone is mounted on the outer circumferential surface thereof. A module (7) is mounted on the outer circumferential surface of the wedge. The cone, the wedge, and the module are all mounted on a T-shaped key (4). Also, a support ring (11) is mounted on the outer circumferential surface of the pull rod. A short T-shaped key (10) is mounted between one end surface of the support ring and one end surface of the wedge. A lubricating ring (2) is mounted on the pull rod at one end of the cone. A press ring (1) is mounted at one end of the lubricating ring. An oil path system is provided on a cross section of the support ring. The oil path system is divided into a first oil path (13), a second oil path (14), a third oil path (15), and a fourth oil path (16). Multiple lubrication distributors (12) are mounted at intervals on the outer circumferential surface of the support ring. The lubrication distributors are connected each oil path system. The expanding head support ring oil path system is structurally reasonable and compact and provides a great lubrication effect.

Inventors:
ZHANG JIANJUN (CN)
CHEN WENBAO (CN)
XU WEI (CN)
ZHAO DONG (CN)
SHENG JIN (CN)
WU ZHENDONG (CN)
LI RUIXIA (CN)
Application Number:
PCT/CN2014/079483
Publication Date:
March 12, 2015
Filing Date:
August 21, 2014
Export Citation:
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Assignee:
WUXI SUNYOU GENERAL MACHINE CO LTD (CN)
International Classes:
B21D37/18; B21D39/08
Foreign References:
CN103464625A2013-12-25
CN203470697U2014-03-12
CN201046483Y2008-04-16
CN201067779Y2008-06-04
CN102513460A2012-06-27
JPH04238628A1992-08-26
JPS5677033A1981-06-25
Attorney, Agent or Firm:
WUXI HUA YUAN PATENT ATTORNEYS (GENERAL PARTNERSHIP) (CN)
无锡华源专利事务所(普通合伙) (CN)
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