The invention relates to a hydraulic power unit for an electro-hydraulic point switch. The hydraulic power unit is composed of a pump valve assembly, a coupler and a motor. A motor in the hydraulic power unit is connected with the pump valve assembly through the coupler, the pump valve assembly internally comprises an oil pump, a box body, an oil inlet assembly, an oil outlet assembly, an overflow valve assembly, an oil injection filtering device, an oil scale and a reversing valve, a three-position four-way valve is adopted as a reversing valve, when the reversing valve is located at the middle position, an oil way is in a conducting state, and the oil pump adopts a one-way oil outlet mode. The structure is compact, simple and reliable, high integration of the motor and a pump valve set is achieved, the overall height and length are small, and field application is facilitated.
本发明涉及一种电液转辙机用液压动力单元,所述液压动力单元由泵阀组件、联轴器和电机构成。所述的液压动力单元内电机通过联轴器与泵阀组件联接;所述泵阀组件内包括油泵、箱体、进油组件、出油组件、溢流阀组件、注油过滤装置、油标尺和换向阀;所述换向阀采用三位四通阀,换向阀处于中间位时,油路处于导通状态;所述油泵采用单向出油方式。本发明结构紧凑、简单可靠,实现了电机和泵阀组的高度集成化,整体的高度、长度尺寸较小,便于现场的应用。
Hydraulic power unit for electro-hydraulic point switch
一种电液转辙机用液压动力单元
2021-04-30
Patent
Elektronische Ressource
Chinesisch
Hydraulic power unit suitable for electro-hydraulic switch machine
Europäisches Patentamt | 2023
|ELECTRO HYDRAULIC POWER UNIT OF HYDRAULIC BRAKE SYSTEM
Europäisches Patentamt | 2016
|ELECTRO HYDRAULIC POWER UNIT OF HYDRAULIC BRAKE SYSTEM
Europäisches Patentamt | 2015
|Novel hydraulic assembly for electro-hydraulic switch machine
Europäisches Patentamt | 2023
|