A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-adjusting regeneration valve for main valve of hydraulic excavator
The invention discloses a self-adjusting regeneration valve for a main valve of a hydraulic excavator. The self-adjusting regeneration valve is characterized in that the self-adjusting regeneration valve comprises a large valve sleeve, the large valve sleeve is provided with an O-shaped ring groove and an external thread structure, the large valve sleeve can be conveniently assembled on a valve body in a sealed and fastened manner, the front end of the large valve sleeve is fixedly connected with a plug in a sealed manner through threads and an O-shaped sealing ring, and a spring seat is tightly attached to the end face of the plug. A large valve element is arranged in the large valve sleeve, a spring is installed on the spring seat and supported on the end face of the outer circle of the large valve element, a small valve sleeve is arranged at the right end of the large valve sleeve and limited through the end face of the large valve sleeve, the outer circle face of the small valve sleeve is provided with an O-shaped ring groove and a check ring groove, and the small valve sleeve and the large valve sleeve form clearance fit with sealing performance through an O-shaped sealing ring and a check ring; and a small valve element is arranged in the small valve sleeve in a clearance fit manner, the small valve element can push the large valve element to move under the action of hydraulic oil pressure, and regenerated flow is controlled according to the opening degree of a throttling hole.
本发明公开了一种液压挖掘机主阀用自调节再生阀，其特征在于：包括大阀套，大阀套设有O形圈槽和外螺纹结构，便于密封紧固装配于阀体，大阀套的前端，由螺堵通过螺纹及O形密封圈密封固定连接，弹簧座紧贴于螺堵端面，大阀芯设于大阀套内，弹簧安装于弹簧座上，并支撑在大阀芯外圆端面，小阀套设于大阀套右端并以其端面限位，小阀套外圆面设有O形圈槽和挡圈槽的结构，通过O形密封圈和挡圈与大阀套形成具有密封性能的间隙配合，小阀芯通过间隙配合置于小阀套内，在小阀芯受到液压油压力作用下可推动大阀芯移动，根据节流孔开放大小控制再生的流量。
Self-adjusting regeneration valve for main valve of hydraulic excavator
The invention discloses a self-adjusting regeneration valve for a main valve of a hydraulic excavator. The self-adjusting regeneration valve is characterized in that the self-adjusting regeneration valve comprises a large valve sleeve, the large valve sleeve is provided with an O-shaped ring groove and an external thread structure, the large valve sleeve can be conveniently assembled on a valve body in a sealed and fastened manner, the front end of the large valve sleeve is fixedly connected with a plug in a sealed manner through threads and an O-shaped sealing ring, and a spring seat is tightly attached to the end face of the plug. A large valve element is arranged in the large valve sleeve, a spring is installed on the spring seat and supported on the end face of the outer circle of the large valve element, a small valve sleeve is arranged at the right end of the large valve sleeve and limited through the end face of the large valve sleeve, the outer circle face of the small valve sleeve is provided with an O-shaped ring groove and a check ring groove, and the small valve sleeve and the large valve sleeve form clearance fit with sealing performance through an O-shaped sealing ring and a check ring; and a small valve element is arranged in the small valve sleeve in a clearance fit manner, the small valve element can push the large valve element to move under the action of hydraulic oil pressure, and regenerated flow is controlled according to the opening degree of a throttling hole.
本发明公开了一种液压挖掘机主阀用自调节再生阀，其特征在于：包括大阀套，大阀套设有O形圈槽和外螺纹结构，便于密封紧固装配于阀体，大阀套的前端，由螺堵通过螺纹及O形密封圈密封固定连接，弹簧座紧贴于螺堵端面，大阀芯设于大阀套内，弹簧安装于弹簧座上，并支撑在大阀芯外圆端面，小阀套设于大阀套右端并以其端面限位，小阀套外圆面设有O形圈槽和挡圈槽的结构，通过O形密封圈和挡圈与大阀套形成具有密封性能的间隙配合，小阀芯通过间隙配合置于小阀套内，在小阀芯受到液压油压力作用下可推动大阀芯移动，根据节流孔开放大小控制再生的流量。
Self-adjusting regeneration valve for main valve of hydraulic excavator
一种液压挖掘机主阀用自调节再生阀
MA ZONGYU (author) / LUO XINYI (author) / YU HONGBO (author) / BAI YONGGANG (author) / WANG XIAOWEI (author)
2021-05-07
Patent
Electronic Resource
Chinese
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