一种轴向柱塞泵内部压力测试方法  

An Internal Pressure Test Method of Axial Piston Pump

作　　者：周晓磊 武兵 王君 ZHOU Xiao-lei;WU Bing;WANG Jun(Taiyuan University of Technology,Key Lab of Advanced Transducers and Intelligent Control System,Ministry of Education and Shanxi Province,Shanxi Taiyuan 030000,China)

机构地区：[1]太原理工大学新型传感器与智能控制教育部与山西省重点实验室,山西太原030000

出　　处：《机械设计与制造》2022年第8期181-184,共4页Machinery Design & Manufacture

基　　金：山西省科技重大专项(20181102027);山西省青年科技研究基金(201701D221140)。

摘　　要：针对目前轴向柱塞泵工作过程中柱塞腔压力信号难以测试的问题,提出了一种基于无线传感器的柱塞腔测试方法。通过在柱塞泵相关部件上打孔,将测试节点固定到柱塞泵缸体及轴端,使微型压力传感器直接与柱塞腔内部液压油接触以此来采集压力信号。节点集成压力采集、无线数据传输、无线供电等模块,实现了压力信号的高速准确采集。该设计方案理论上能够进行柱塞泵旋转缸体内部压力测试,为柱塞泵状态监测和压力特性研究提供了新的技术手段,经测试,节点具有较高的稳定性和准确性,能够满足柱塞泵压力信号测试要求。Aiming at the problem that the plunger cavity pressure signal is difficult to collect. A new mean based on wireless sensor is designed. The pressure signal is collected by fixing the sensor node to the plunger pump cylinder and the shaft end by punching the relevant parts of the plunger pump so that the pressure sensor directly contacts the hydraulic oil inside the plunger. The node integrates data acquisition, wireless data transmission, wireless power supply and other modules to achieve high-speed and accurate acquisition of pressure signals. The design can theoretically test the internal pressure of the piston pump, which provides a new technical means. The node has high stability and accuracy and meets the requirements of piston pump pressure signal test.

关 键 词：柱塞泵 无线监测 无线供电 数据采集 嵌入式 无线传感器节点 

分 类 号：TH16[机械工程—机械制造及自动化] TP274[自动化与计算机技术—检测技术与自动化装置]