A slewing ring buffer valve for a truck crane
By designing a slewing buffer valve for truck cranes with a main valve stem, unloading valve stem, and three-way pressure compensator, the problem of poor load adaptability in existing technologies has been solved, achieving stable output flow and reducing crane vibration, thereby improving operational stability and safety.
CN224380253UActive Publication Date: 2026-06-19SHENGBANG GRP CO LTD +3
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENGBANG GRP CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-19
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Figure CN224380253U_ABST
Abstract
A slewing buffer valve for a truck crane is disclosed. This invention solves the problem of the limited functionality of existing slewing buffer valves. It includes a valve body with a main oil inlet, a return oil port, a first working oil port, and a second working oil port. It also includes: a main valve stem, which receives pressurized oil from the main oil inlet and controls the flow direction of the pressurized oil at the main oil inlet through reversing; an unloading valve stem, located within the valve body, whose inlet is connected to either the first or second working oil port, and whose outlet is connected to the return oil port; and a three-way pressure compensator, through which the pressurized oil from the main valve stem outlet is connected to the return oil port. This invention also has advantages such as simple structure, convenient assembly, reliable operation, and long service life.
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