Title:
OIL CYLINDER SYSTEM, BOOM AND CRANE
Document Type and Number:
WIPO Patent Application WO/2024/066270
Kind Code:
A1
Abstract:
The present disclosure relates to an oil cylinder system, a boom and a crane. The oil cylinder system comprises a first oil cylinder, a second oil cylinder and an oil supply pipeline; the oil supply pipeline is separately connected to the first oil cylinder and the second oil cylinder; when the oil supply pipeline is in a first state, the oil supply pipeline guides hydraulic oil to drive the first oil cylinder to operate alone; when the oil supply pipeline is in a second state, the oil supply pipeline guides the hydraulic oil to drive the second oil cylinder to operate alone; when the oil supply pipeline is in a third state, the oil supply pipeline guides the hydraulic oil to drive the first oil cylinder and the second oil cylinder to operate synchronously. Therefore, when the two oil cylinders need to operate synchronously, the oil supply pipeline is controlled to be in the third state, and the oil supply pipeline guides the oil to drive the first oil cylinder and the second oil cylinder to operate synchronously; and if the synchronous operation of the first oil cylinder and the second oil cylinder has errors, the oil supply pipeline is switched to the first state or the second state to control the first oil cylinder or the second oil cylinder to operate alone, thus eliminating the errors in the synchronization process.
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Inventors:
WU YUAN (CN)
PENG SHIFA (CN)
LIU SEN (CN)
PENG SHIFA (CN)
LIU SEN (CN)
Application Number:
PCT/CN2023/085663
Publication Date:
April 04, 2024
Filing Date:
March 31, 2023
Export Citation:
Assignee:
SANY MARINE HEAVY IND CO LTD (CN)
HUNAN SANY PORT MACHINERY CO LTD (CN)
HUNAN SANY PORT MACHINERY CO LTD (CN)
International Classes:
F15B11/22
Foreign References:
| CN115405580A | 2022-11-29 | |||
| CN115467868A | 2022-12-13 | |||
| CN207879749U | 2018-09-18 | |||
| US20020162446A1 | 2002-11-07 | |||
| CN106574640A | 2017-04-19 | |||
| CN204096939U | 2015-01-14 | |||
| CN211874231U | 2020-11-06 |
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
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