Title:
EMERGENCY STEERING SYSTEM, CHASSIS AND OPERATION MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/178797
Kind Code:
A1
Abstract:
The present invention relates to the field of engineering machinery. Provided are an emergency steering system, a chassis and operation machine. The emergency steering system comprises an oil supply device, a power-assisted steering assembly, an emergency pump and a reversing connection assembly. The emergency pump is used for being in transmission connection with a gearbox, and when the emergency pump rotates forwards or reversely, the reversing connection assembly can allow the emergency pump to drive hydraulic oil to flow from the oil supply device to the power-assisted steering assembly. By means of the emergency steering system provided in the present invention, the emergency pump, which cannot supply oil bidirectionally, is combined with the reversing connection assembly, so that the effect of supplying oil bidirectionally is realized; and compared with a plunger pump in the prior art, by means of the emergency steering system provided in the present invention, regardless of whether the emergency pump rotates forwards or reversely, the hydraulic oil can be sucked from the oil supply device and is then conveyed to the power-assisted steering assembly, and in addition, the structure is simple and the costs are low.
Inventors:
HE QUANWEN (CN)
WU BIN (CN)
BI GUANGQIANG (CN)
WU BIN (CN)
BI GUANGQIANG (CN)
Application Number:
PCT/CN2022/090362
Publication Date:
September 28, 2023
Filing Date:
April 29, 2022
Export Citation:
Assignee:
SANY MOBILE CRANES CO LTD (CN)
International Classes:
B62D5/30
Foreign References:
| CN114179906A | 2022-03-15 | |||
| CN215154999U | 2021-12-14 | |||
| CN104210541A | 2014-12-17 | |||
| CN106494500A | 2017-03-15 | |||
| JPH111171A | 1999-01-06 | |||
| JP2013151258A | 2013-08-08 | |||
| JP2001219857A | 2001-08-14 |
Attorney, Agent or Firm:
TALENT PATENT&TRADEMARK FIRM (CN)
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