Suspension device for electromagnetic track brake for light rail vehicle

Abstract

The invention provides a suspension device for an electromagnetic track brake for a light rail vehicle. The suspension device comprises an end cover, a regulation screw rod, a suspension spring, a spring tray, a flat gasket, an upper elastic nut, a disc-shaped gasket, a bolt, a dustproof cover, a suspension tray, a spherical gasket and a lower elastic nut; the structural characteristic lies in the fact that the suspension device further comprises an upper clamp, a lower clamp, a locking nut and an opening pin; the upper clamp and the lower clamp respectively clamp and fix an upper port and a lower port of the dustproof cover on the upper elastic nut and the suspension tray; the locking nut is arranged below the lower elastic nut and fixes the locking sleeve by the opening pin on the screw rod. According to the suspension device provided by the invention, as the upper clamp and the lower clamp are additionally arranged, the dustproof and waterproof performances are improved much, the service life of the suspension device is prolonged, the maintenance workload and the use cost of equipment are reduced; and due to the additional arrangement of the locking nut, the safety performance of the device is improved, and the safety accidents are effectively avoided.

Description

technical field [0001] The invention relates to the field of electromagnetic track brakes for rail vehicles, in particular to a suspension device for electromagnetic track brakes for low-floor light rail vehicles. Background technique [0002] The suspension device that the electromagnetic track brake that is applied to the low-floor light rail vehicle adopts at present mainly is made of adjusting screw mandrel, suspension spring, dust cover and elastic nut etc., but but existing suspension device has the problem of two aspects: the one is The length of the rubber dust cover in the middle of the adjustment screw is small and there are no fixing devices at both ends of the dust cover to position it. The dust cover cannot completely cover the thread in the middle of the adjustment screw, and the stiffness of the dust cover itself is small. After a certain period of use, the rubber material fatigues and ages, and the dust cover will deform and shrink under the action of its...

AI Technical Summary

Problems solved by technology

[0002] The suspension device that the electromagnetic track brake that is applied to the low-floor light rail vehicle adopts at present mainly is made of adjusting screw mandrel, suspension spring, dust cover and elastic nut etc., but but existing suspension device has the problem of two aspects: the one is The length of the rubber dust cover in the middle of the adjustment screw is small and there are no fixing devices at both ends of the dust cover to position it. The dust cover cannot completely cover the thread in the middle of the adjustment screw, and the stiffness of the dust cover itself is small. After a certain period of use, the rubber material fatigues and ages, and the dust cover will deform and shrink under the action of its own gravity, resulting in a longer adjustment screw thread being exposed to the external environment, thus making the anti-adhesion coating on the adjustment screw thread part Aluminum paste is easy to mix with water vapor and dust, which greatly shortens the service life of aluminum paste and increases the maintenance workload and use cost of electromagnetic track brake related equipment; It is easy to loosen under the vibration and impact caused by unevenness, and it is easy to loosen down under the gravity of the electromagnet, resulting in a smaller gap between the electromagnet and the top of the track in the non-working state. In severe cases, it may even contact or collide with the track. security incident

Images