Forestry oil cylinder and buffer mechanism
By incorporating a flow channel and ball structure within the buffer sleeve of the forestry hydraulic cylinder, combined with a one-way valve, the problems of complex and easily damaged buffer structures in forestry equipment hydraulic cylinders are solved, achieving rapid start-up and stable buffering effects.
CN224315287UActive Publication Date: 2026-06-02JIANGSU HENGLI HYDRAULIC
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HENGLI HYDRAULIC
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
The hydraulic cylinder buffer structure of forestry equipment is complex and easily damaged, and the buffering effect is poor when the buffering frequency is high.
Method used
The system employs a buffer sleeve with internal flow channels and a ball structure. The ball opens and closes the flow channels at different positions to achieve buffering and rapid start-up. Combined with a one-way valve structure, it accelerates the action of hydraulic oil on the piston.
Benefits of technology
It achieves a simple, durable, and fast buffering effect, avoids deformation of the buffer sleeve and buffer ring, and improves the stability and efficiency of the buffering frequency.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224315287U_ABST
Abstract
The utility model belongs to fluid pressure executing mechanism technical field, concretely relates to a forestry oil cylinder and buffer mechanism, the oil cylinder, include: the cylinder body, its open end is provided with end cover, piston rod, insert in the cylinder body, piston, the sleeve is located in the piston rod, and is located in the cylinder body to divide the chamber in the cylinder body into the rod cavity and the rodless cavity, buffer cover, the sleeve is located in the piston rod, and is located in the rod cavity side of piston, the flow channel is opened in buffer cover, first pipe orifice of flow channel is located on the end face of buffer cover towards piston, first ball is movably arranged in first pipe orifice, the piston rod retraction of the oil cylinder, the buffer section of end cover fills in hydraulic oil, the buffer section pressure of end cover is greater than the rod cavity at this moment, namely the hydraulic oil promotes first ball to open flow channel, makes pressure can directly act on the piston to realize quick start, simple structure is not easy to be damaged failure.
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