Five-star wheel driving dual valve distribution hydraulic motor

By using a five-star wheel-driven dual-valve flow distribution mechanism and an integrated pressure-judging shuttle valve with a floating plunger structure, intelligent static pressure balance and reliable flow distribution of the high-water-based hydraulic motor under low-viscosity media are achieved, solving leakage and wear problems and improving the motor's volumetric efficiency and lifespan.

CN122407449APending Publication Date: 2026-07-17XUZHOU COLLEGE OF INDAL TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XUZHOU COLLEGE OF INDAL TECH
Filing Date
2026-04-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

High-viscosity hydraulic motors suffer from serious leakage, premature wear of friction pairs, and unreliable flow distribution and static pressure balance under variable operating conditions, especially in forward and reverse operation conditions where reliable bidirectional rotation cannot be achieved.

Method used

It adopts a five-star wheel-driven dual-valve flow distribution mechanism, integrating a pressure judgment shuttle valve and a floating plunger structure to achieve intelligent and reliable static pressure balance and flow distribution control.

Benefits of technology

It effectively solves the problems of internal leakage, unreliable flow distribution, and short life of key components in high water-based hydraulic motors under high pressure, low speed, high torque, and forward and reverse operation conditions, improves volumetric efficiency, and extends the service life of friction pairs.

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Abstract

本发明公开了一种五星轮驱动双阀配流水液压马达,适用于高水基介质。其核心在于由同步转动的配流曲轴、配流五星轮及并列的第一、第二配流阀组构成的配流机构。每个配流阀集成有压力判断梭阀。工作时,配流五星轮按相位机械驱动对应配流阀顶杆;压力判断梭阀则根据系统压力,自动将高压引导至当前进液阀控制腔助其开启,并引导至回液阀控制腔助其锁定,从而实现正反转工况下的智能配流与静压平衡。此外,采用带弹性密封与调姿元件的浮动柱塞结构,可自适应补偿柱塞倾斜,抑制高压泄漏。本发明有效解决了高水基马达内泄漏严重、配流不可靠及寿命短的问题,具有高容积效率与长寿命的优点。
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