The invention relates to the technical field of engineering machinery, and provides an automatic caterpillar band tensioning device, a walking mechanism and an automatic tensioning control method.The automatic caterpillar band tensioning device comprises an electromagnetic proportional pressure reducing valve, an electromagnetic reversing valve, an electromagnetic proportional unloading valve and two tensioning oil cylinders, and one end of the electromagnetic proportional pressure reducing valve is connected with an oil source pump; the end, away from the electromagnetic proportional pressure reducing valve, of the electromagnetic reversing valve is connected with a first oil way and a second oil way, the first oil way is connected with a rod cavity of the tensioning oil cylinder, and the second oil way is connected with a rodless cavity of the tensioning oil cylinder. The tensioning device further comprises a pressure sensor and a controller, one end of the pressure sensor is connected with the second oil way, the pressure sensor is used for detecting the tensioning pressure value of a tensioning wheel connected with the tensioning oil cylinder, and the pressure sensor, the electromagnetic reversing valve and the electromagnetic proportional pressure reducing valve are all connected with the controller. And according to different external impacts, the controller can adjust the internal pressure for adaptation, and the adaptability is higher.
本发明涉及工程机械技术领域,提供一种履带自动张紧装置、行走机构以及自动张紧控制方法,履带自动张紧装置包括:电磁比例减压阀、电磁换向阀、电磁比例卸荷阀以及两个张紧油缸,电磁比例减压阀一端与油源泵连接,另一端与电磁换向阀相连接,电磁换向阀远离电磁比例减压阀一端连接有第一油路和第二油路,第一油路与张紧油缸的有杆腔相连接,第二油路与张紧油缸的无杆腔相连接;其中,还包括压力传感器和控制器,压力传感器一端与第二油路相连接,用于检测张紧油缸连接的张紧轮的张紧压力值,压力传感器、电磁换向阀以及电磁比例减压阀均与控制器相连接。根据外界不同冲击,控制器可以调整内部压力以进行适应,适应性更强。
Crawler belt automatic tensioning device, walking mechanism and automatic tensioning control method
履带自动张紧装置、行走机构以及自动张紧控制方法
2022-07-12
Patent
Electronic Resource
Chinese
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