Air-controlled pneumatic synchronous wiper for locomotive

Abstract

The invention relates to an air-controlled pneumatic synchronous wiper for a locomotive. The air-controlled pneumatic synchronous wiper comprises a left scraping arm component, a right wiping arm component, a left motor component, a right motor component, an air source processor, a pneumatic controller and a switch component. The air-controlled pneumatic synchronous wiper is characterized in that the pneumatic controller is composed of four shuttle valves, two dual pressure valves and a delayer, pair-wise combinations are subjected to AND operation, quantity of airflow is adjusted through a one-way throttle valve and a speed adjustment throttle valve to achieve air synchronization and steering synchronization of signals, leading to equal swing frequency of left and right swing cylinders and eliminating errors of the left and the right swing cylinders during a single swing, thus synchronous movements of the left and the right swing cylinders are kept to achieve synchronous wiping of the wiper. The wiper is air-controlled and driven by a vehicle-mounted air source to work, so that the air-controlled pneumatic synchronous wiper is simple in structure with pipeline connection, low in producing cost, easy and convenient to mount and operate, good in safety and reliability and capable of effectively and synchronously wiping.

Description

technical field [0001] The invention relates to a wiper, in particular to an air-controlled synchronous pneumatic wiper device for a locomotive. Background technique [0002] The locomotive wiper is a device used to clean the front glass window of the locomotive to ensure a clear view of the driver. According to the power source, it can be divided into electric wiper and pneumatic wiper. Pneumatic wipers are widely used in single-arm wipers at home and abroad because of their long service life, good stability, large output torque, and strong adaptability. With the demand for humanized design of the locomotive driver's cab, the front glass window is more and more inclined to the overall large field of view, and dual-arm and synchronous wipers are usually required. The synchronization method currently adopted by the pneumatic wiper is the electro-pneumatic method: the sensor is used to collect the angle signal of the wiper motor, and the control signal synchronization is rea...

AI Technical Summary

Problems solved by technology

This kind of wiper structure is more complicated, and the cost of manufacture and maintenance is high

Although the existing purely pneumatic windshield wiper is easy to manufacture and maintain, and the cost is low, it can only realize the independent wiping of the left and right wiping arms, and cannot adapt to the synchronous wiping of the overall glass window with a large field of view.

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