Emergency valve group, hydraulic control system and working machine
By introducing an emergency valve group into the hydraulic control system, the hydraulic oil flow is monitored in real time and the emergency pump is started, which solves the problem of insufficient oil supply when the hydraulic pump fails, ensures stable oil supply to the actuators, and improves the emergency response capability and safety of the system.
CN224432961UActive Publication Date: 2026-06-30ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
When a hydraulic pump fails in the existing technology, it is difficult to quickly detect and start an emergency pump, resulting in insufficient oil supply to the actuators and causing safety accidents.
Method used
Design an emergency valve assembly, including a flow detection module and a control unit, to detect the hydraulic oil flow in the oil supply circuit in real time, and to start an emergency pump when the flow is abnormal, so as to ensure emergency oil supply to the oil supply circuit.
Benefits of technology
When the hydraulic pump fails, the abnormality in the oil supply circuit is quickly detected and the emergency pump is activated to avoid insufficient oil supply to the actuators, thereby improving the stability and safety of the hydraulic control system.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224432961U_ABST
Abstract
The application belongs to the technical field of hydraulic control, and particularly relates to an emergency valve group, a hydraulic control system and a working machine. The emergency valve group is applied to a hydraulic control system. The hydraulic control system comprises an oil supply oil circuit and an emergency oil circuit. The oil supply oil circuit is used for supplying oil to an executing element. The emergency oil circuit is used for supplying oil to the oil supply oil circuit in an emergency. An emergency pump is arranged on the emergency oil circuit. The emergency valve group comprises: a flow detection module, which is used for detecting the hydraulic oil flow of the oil supply oil circuit and transmitting a control signal; and a control unit, which is electrically connected with the emergency pump and the flow detection module. The control unit is used for controlling the emergency pump to start in the case of receiving the control signal sent by the flow detection module. The emergency valve group can quickly respond and urgently control the emergency pump to urgently supply oil to the executing element in the case of main pump failure.
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