关键词:液压泵 液压马达 功率回收 实验台设计
Abstract
This paper we introduce a new hydraulic pump and motor bedstand ,which is mainly used for testing hydraulic pump and motor. The test bedstand which is composed of electro-motor ,hydraulic pump ,hydraulic motor ,speed verily box and parallel compensating pump, can resolve the problem of power consumption and the power warm while large power hydraulic pump and motor testing.the principle of system is that electro-motor drive the hydraulic pump first,then the pump make the hydraulic motor work through its high pression oil,the follow working hydraulic motor feedback the power in niuju re-drive the hydraulic pump,at last the power is recovered.this bedstand make use of bishi hydraulic system ,which can have a closely construct ,and steadly chuandong ,lower noise ,high power recovery percentage and so on. mechanical compensation,which electro-motor out niuju through speed verily box drive the hydraulic pump,is another chacracter.Hydraulic compensation ,that the parallel pump out the oil compensate the system flowrate clearance.the mechanic box two speed rate which is
Keywords:Hydraulic pump Hydraulic motor Power recovery The designing of test bedstand