Title:
SELF-LUBRICATING SHAFT AND WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/135328
Kind Code:
A1
Abstract:
Disclosed are a self-lubricating shaft and a work machine provided with the self-lubricating shaft. The self-lubricating shaft comprises a shaft body (100) comprising an inner cavity, and a piston (200) movably disposed in the inner cavity of the shaft body; the inner cavity of the shaft body (100) extends along the axial direction of the shaft body (100); one side of the piston (200) is an oil storage cavity (105) used for storing a lubricant; the shaft body (100) is provided with an oil outlet channel (101) that has one end communicated with the oil storage cavity (105) and the other end extending to the peripheral surface of the shaft body (100); the piston (200) is connected to the shaft body (100) by means of an elastic piece (210) used for applying an acting force to the piston (200) to compress the oil storage cavity (105). The self-lubricating shaft can continuously and spontaneously press the lubricant stored in the oil storage cavity of the shaft body to the outer surface of the shaft body, so as to achieve a lubrication effect, thereby avoiding frequent manual replenishment of lubricant; under active pressing of the elastic piece, the lubricant on the outer surface of the shaft body is sufficient, so that the lubrication effect is good.
Inventors:
GU YUNHUI (CN)
DING ZEHUA (CN)
MAO CHENG (CN)
DING ZEHUA (CN)
MAO CHENG (CN)
Application Number:
PCT/CN2020/112210
Publication Date:
July 08, 2021
Filing Date:
August 28, 2020
Export Citation:
Assignee:
SANY AUTOMOBILE MFG CO LTD (CN)
International Classes:
F16C3/02; F16N7/14; F16N29/00
Foreign References:
| CN110985522A | 2020-04-10 | |||
| CN203131394U | 2013-08-14 | |||
| CN203131394U | 2013-08-14 | |||
| CN109386716A | 2019-02-26 | |||
| CN202756874U | 2013-02-27 | |||
| CN203361220U | 2013-12-25 | |||
| EP0733848A2 | 1996-09-25 |
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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