YWZ8-300/E80A ELECTRO HYDRAILIC AND DRUM BRAKE

Foreword In the development history of China's brake industry, the brake technology developed slowly before the mid-1980s.

For many years, the Soviet-like double push rod brakes in the 1950s have been maintained, with low technical level and little possibility of technical improvement. Since 1985, the production technology of Ed single pusher produced by EMG Company in West Germany was exclusively introduced by our company, the brake technology has developed rapidly.

However, the technical level of such products only reached the domestic advanced level in the 1980s, far from China.

The invention relates to an electro-hydraulic drum brake, which effectively solves the problem that the existing electro-hydraulic drum brake can only be clamped at two sides.

The brake comprises a first brake arm and a second brake arm, wherein both the first brake arm and the second brake arm are provided with brake shoes, and the lower ends of the first brake arm and the second brake arm are provided with interlocking equal-distance devices; the upper end of the second brake arm is connected with a lever, and the left end of the second brake arm is connected with a pull rod; It consists of two parts: a brake frame and a matched hydraulic cylinder.

The main swing of the brake frame is equipped with a self-lubricating bearing, which has high transmission efficiency and sensitive and reliable action. Die-casting brake pad has the advantages of convenient and rapid replacement, long service life and high utilization rate; Interlocking equal distance device automatically equalizes, and can brake all around the brake wheel, with excellent braking effect.

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