Title:
HYDRAULIC STEPPING CONTROL DEVICE AND WORKING MACHINE
Document Type and Number:
WIPO Patent Application WO/2024/017012
Kind Code:
A1
Abstract:
The present application relates to the technical field of hydraulic control, and in particular, to a hydraulic stepping control device and a working machine. The hydraulic stepping control device provided by the present application comprises: a cylinder piston mechanism comprising a cylinder and a piston disposed in the cylinder, the piston dividing the inner cavity of the cylinder into a first cavity and a second cavity; a first oil path connected to the first cavity; a second oil path connected to the second cavity; a third oil path used for inputting a hydraulic medium; a fourth oil path used for outputting the hydraulic medium; a reversing valve assembly connected to the first oil path, the second oil path, the third oil path, and the fourth oil path, the reversing valve assembly being capable of being switched between a first state and a second state. The hydraulic stepping control device and the working machine provided by the present application can achieve accurate control on a hydraulic actuator, and are suitable for some specific working conditions.
Inventors:
ZHANG KAI (CN)
XU HONGYU (CN)
LI JUNFEI (CN)
XU HONGYU (CN)
LI JUNFEI (CN)
Application Number:
PCT/CN2023/104429
Publication Date:
January 25, 2024
Filing Date:
June 30, 2023
Export Citation:
Assignee:
BEIJING SANY INTELLIGENT MANUFACTURING TECH CO LTD (CN)
International Classes:
F15B15/00
Foreign References:
| CN115263854A | 2022-11-01 | |||
| CN111577686A | 2020-08-25 | |||
| CN111720375A | 2020-09-29 | |||
| CN113819106A | 2021-12-21 | |||
| CN205001266U | 2016-01-27 | |||
| CN213360612U | 2021-06-04 | |||
| US20140117749A1 | 2014-05-01 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
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