ENGINEERING MACHINE AND FLOW DISTRIBUTING AND CONVERGING HYDRAULIC CONTROL SYSTEM THEREOF

摘要

Disclosed in the present invention is a flow distributing and converging hydraulic control system for an engineering machine, which comprises: a first oil supplying pipeline and a second oil supplying pipeline communicated or disconnected through a flow distributing and converging valve (4); a first load feedback oil pipeline and a second load feedback oil pipeline respectively connected with a first oil inlet and a second oil inlet of a shuttle valve (2), wherein an oil outlet of the shuttle valve (2) is communicated with the second oil supplying pipeline through a second flow compensation valve (6); and a pressure stop valve (1), wherein the first load feedback oil pipeline is communicated or disconnected with the first oil inlet of the shuttle valve (2) through the pressure stop valve (1). Also disclosed in the present invention is the engineering machine, which comprises a vehicle loading portion adopting the above flow distributing and converging hydraulic control system. When a second working link is started prior to a first working link, the hydraulic control system can avoid the influence such as impact and vibration to the second working link caused by the first working link and so on.