Title:
SUSPENDED UNIT HYDRAULIC APPARATUS FOR MINING
Document Type and Number:
WIPO Patent Application WO/2021/115025
Kind Code:
A1
Abstract:
Provided is a suspended unit hydraulic apparatus for mining, comprising an oil cylinder (1), a base (2), a sealing cover (3), a lifting column body (4), a bracket body (5), a liquid storage collar (6), and a control box (30); the base (2) is sleeved on the bottom of the oil cylinder (1), the sealing cover (3) is sleeved on the top of the oil cylinder (1), the liquid storage collar (6) is sleeved on the oil cylinder (1), the lifting column body (4) is sleeved in the oil cylinder (1), and the bracket body (5) is sleeved on the top of the lifting column body (4); the bottom of the oil cylinder (1) is provided with a magnetic push assembly (7), and a magnetic damping apparatus (8) is sleeved on the inner side of the top of the lifting column body (4). A liquid storage chamber (13) is filled with an electromagnetic liquid containing magnetic nanoparticles of hydrocarbons; magnetism is generated by means of supplying power to an electromagnetic winding (26) on the magnetic push assembly (7); the magnetic force pushes the electromagnetic liquid flowing into the base (2) into the lifting column body (4), and as the electromagnetic liquid in the lifting column body (4) increases, the lifting column body (4) begins to lift and support, and no external power source is required.
Inventors:
XING PEIPEI (CN)
Application Number:
PCT/CN2020/128868
Publication Date:
June 17, 2021
Filing Date:
November 14, 2020
Export Citation:
Assignee:
XINCHANG LUHENG MACHINERY CO LTD (CN)
International Classes:
E21D15/44; E21D15/45; E21D15/51
Foreign References:
| CN111075483A | 2020-04-28 | |||
| CN204511470U | 2015-07-29 | |||
| CN209129638U | 2019-07-19 | |||
| CN103670456A | 2014-03-26 | |||
| CN108612549A | 2018-10-02 | |||
| SU1229359A1 | 1986-05-07 |
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