A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Telescopic boom loader
The invention relates to a telescopic boom loader, and aims to solve the problem that an oil supplementing oil cylinder is impacted by high-pressure oil when an existing telescopic boom loader carries out a bucket retracting action. The invention provides the telescopic boom loader which comprises a balance valve; a small cavity of an oil supplementing oil cylinder is communicated with a small cavity of a rotating bucket oil cylinder through a pipeline; and the balance valve is connected between a large cavity of the oil supplementing oil cylinder and a large cavity of the rotating bucket oil cylinder, the large cavity of the oil supplementing oil cylinder is communicated with the large cavity of the rotating bucket oil cylinder in an equal-pressure mode through the balance valve, and the large cavity of the rotating bucket oil cylinder is communicated with the large cavity of the oil supplementing oil cylinder in a pressure reduction mode through the balance valve. Only when a movable arm lifts, the rotating bucket oil cylinder stretches out and draws back along with lifting of an actuating arm to adjust the posture of a bucket, during rotating bucket operation, high-pressure oil in the large cavity of the rotating bucket oil cylinder needs to be transferred to the large cavity of the oil supplementing oil cylinder through pressure reduction of the balance valve, the pressure entering the oil supplementing oil cylinder is limited, and therefore a sealing piece of the oil supplementing oil cylinder is protected, and the actuating arm is prevented from being impacted and followed-up under the action of high-pressure oil.
本发明涉及伸缩臂装载机，为解决现有伸缩臂装载机进行收斗动作时补油油缸受高压油冲击的问题；提供一种伸缩臂装载机，其包括平衡阀；补油油缸的小腔通过管路与转斗油缸的小腔连通；平衡阀连接在所述补油油缸的大腔与转斗油缸的大腔之间，补油油缸大腔经平衡阀向转斗油缸大腔方向等压连通，转斗油缸大腔经平衡阀向补油油缸大腔方向减压导通。本发明仅在作动臂升降操作时，转斗油缸随动臂升降伸缩对铲斗姿态调整，在转斗操作时，转斗油缸大腔高压油需要通过平衡阀减压传递至补油油缸大腔，限制了进入补油油缸的压力，从而保护了补油油缸密封件，防止动臂被冲击和动臂在高压油作用下发生随动。
Telescopic boom loader
The invention relates to a telescopic boom loader, and aims to solve the problem that an oil supplementing oil cylinder is impacted by high-pressure oil when an existing telescopic boom loader carries out a bucket retracting action. The invention provides the telescopic boom loader which comprises a balance valve; a small cavity of an oil supplementing oil cylinder is communicated with a small cavity of a rotating bucket oil cylinder through a pipeline; and the balance valve is connected between a large cavity of the oil supplementing oil cylinder and a large cavity of the rotating bucket oil cylinder, the large cavity of the oil supplementing oil cylinder is communicated with the large cavity of the rotating bucket oil cylinder in an equal-pressure mode through the balance valve, and the large cavity of the rotating bucket oil cylinder is communicated with the large cavity of the oil supplementing oil cylinder in a pressure reduction mode through the balance valve. Only when a movable arm lifts, the rotating bucket oil cylinder stretches out and draws back along with lifting of an actuating arm to adjust the posture of a bucket, during rotating bucket operation, high-pressure oil in the large cavity of the rotating bucket oil cylinder needs to be transferred to the large cavity of the oil supplementing oil cylinder through pressure reduction of the balance valve, the pressure entering the oil supplementing oil cylinder is limited, and therefore a sealing piece of the oil supplementing oil cylinder is protected, and the actuating arm is prevented from being impacted and followed-up under the action of high-pressure oil.
本发明涉及伸缩臂装载机，为解决现有伸缩臂装载机进行收斗动作时补油油缸受高压油冲击的问题；提供一种伸缩臂装载机，其包括平衡阀；补油油缸的小腔通过管路与转斗油缸的小腔连通；平衡阀连接在所述补油油缸的大腔与转斗油缸的大腔之间，补油油缸大腔经平衡阀向转斗油缸大腔方向等压连通，转斗油缸大腔经平衡阀向补油油缸大腔方向减压导通。本发明仅在作动臂升降操作时，转斗油缸随动臂升降伸缩对铲斗姿态调整，在转斗操作时，转斗油缸大腔高压油需要通过平衡阀减压传递至补油油缸大腔，限制了进入补油油缸的压力，从而保护了补油油缸密封件，防止动臂被冲击和动臂在高压油作用下发生随动。
Telescopic boom loader
伸缩臂装载机
ZHOU JINPING (author) / WEI MAOZHI (author) / LEI NIAN (author) / SHANG JINXIN (author) / TAN YANHUI (author)
2021-12-24
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING