Pneumatic-hydraulic composite hanging cylinder, hydraulic system and transport vehicle
Pneumatic-hydraulic composite hanging cylinder, hydraulic system and transport vehicle
The invention provides a pneumatic-hydraulic composite hanging cylinder which comprises a cylinder block, a cylinder block piston and a piston rod, wherein the cylinder block piston is arranged in thecylinder block to form a first oil cavity and a rod cavity in the cylinder block; a one-way valve and a damper are arranged in the cylinder block piston side by side; the piston rod is fixedly connected with the side, far away from the first oil cavity, of the cylinder block piston and extends out of the rod cavity; a second oil cavity, a floating piston and a gas cavity are arranged in the piston rod; the floating piston is movably obstructed between the second oil cavity and the gas cavity; the damper allows the first oil cavity and the second oil cavity to communicate in two directions; and the one-way valve selectively allows the first oil cavity to communicate with the second oil cavity in one direction. According to the pneumatic-hydraulic composite hanging cylinder, pressure oil enters the second oil cavity from the first oil cavity through the damper and the one-way valve to realize the buffering role of the pneumatic-hydraulic composite hanging cylinder; and in addition, pressure oil also enters the second oil cavity from the second oil cavity through the damper, so that the damping role of the pneumatic-hydraulic composite hanging cylinder is realized. The invention further provides a hydraulic system and a transport vehicle.
本发明提供一种气液复合悬挂缸，包括缸体、缸体活塞和活塞杆。缸体活塞设置于缸体内以在缸体内形成第一油腔和有杆腔，缸体活塞内并排设置有单向阀和阻尼器。活塞杆固定连接于缸体活塞远离第一油腔的一侧并延伸出有杆腔外，活塞杆内具有第二油腔、浮动活塞和气腔，浮动活塞可移动地阻隔在第二油腔和气腔之间，阻尼器允许第一油腔和第二油腔双向连通，单向阀选择性地允许第一油腔单向连通第二油腔。本发明提供的气液复合悬挂缸，压力油可以通过阻尼器和单向阀从第一油腔进入第二油腔，实现了气液复合悬挂缸的缓冲作用，还可以通过阻尼器从第二油腔进入第二油腔，实现了气液复合悬挂缸的减震作用。本发明还提供一种液压系统及运输车。
Dokumentinformationen
Pneumatic-hydraulic composite hanging cylinder, hydraulic system and transport vehicle
气液复合悬挂缸、液压系统及运输车
2020-06-09
Patent
Elektronische Ressource
Chinesisch
Ähnliche Titel
Hydraulic cylinder hanging device for hydraulic machine
| Europäisches Patentamt | 2021