Pneumatic-hydraulic control system for side-turning carriage

Abstract

The invention discloses a compartment tipping pneumatic-hydraulic control system of a side tipping wagon. The compartment tipping pneumatic-hydraulic control system comprises a compartment lifting control electromagnetic valve, a compartment falling position control electromagnetic valve, a manual valve, a three-position reversing valve, a first control gas path, a second control gas path, a gas source module, a gas-liquid conversion module, a three-position four-way valve, a synchronous motor fuel supply module, a manual fuel pump, a plurality of compartment tipping operation fuel cylinders and a plurality of balance valve modules, wherein the number of balance valve modules is equal to the number of compartment tipping operation fuel cylinders. According to the compartment tipping pneumatic-hydraulic control system of the side tipping wagon, the compartment tipping process of the side tipping wagon is safer and more reliable; and the service lives of elements of the compartment tipping pneumatic-hydraulic control system of the side tipping wagon are prolonged.

Description

technical field [0001] The invention relates to the technical field of railway wagons, in particular to a pneumatic-hydraulic control system for overturning a car on a rollover side. Background technique [0002] At present, the control systems of railway rollover vehicles mainly include pneumatic control and hydraulic control. Among them, pneumatic control includes the following two forms: the first is pure pneumatic control, that is, cylinders (with a diameter of about 800mm) are installed on both sides of the car body. ), using the locomotive air source to drive the cylinder to open and reset the door; the second is to use the locomotive air source to drive the pneumatic hydraulic pump to pump fluid, so that the hydraulic cylinder expands and contracts to realize the door opening and reset. [0003] In comparison, hydraulic control has better stability and more compact structure than pure pneumatic control. Patent No. 201110292671.6 of the Chinese patent "Rollover Vehicl...

AI Technical Summary

Problems solved by technology

In this patent, the air-controlled reversing valve and the air-operated hydraulic pump share the same pressure air source. When the air source pressure of the locomotive is insufficient, the two may not be able to reach the pressure required for work, which will affect the normal operation of the system; the two hydraulic pumps on each side of the vehicle There is no synchronous motor between the cylinders. If the loading is uneven, the actions of the two hydraulic cylinders will be out of sync, which will affect the life of the hydraulic components; Cannot be repaired and must be shipped back to a repair shop for inspection

Let's talk about the huge safety hazard in the process of towing the vehicle back to the maintenance workshop

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