Dust and gas industry explosion-proof brake YWZ5-300/30 Hengyang Heavy Industry explosion-proof standard

Outdoor rain and snow erosion or corrosion-resistant gases and media should be corrosion-resistant type products.

Power hydraulic block brake is a mechanical part that stops or slows down the moving parts in the machinery. Commonly known as brake, brake. Brake is mainly composed of brake frame, brake parts and manipulation device. Some brakes are also equipped with automatic adjustment devices for the clearance of the braking parts. In order to reduce the braking torque and the structure of the inch, the brake is usually installed in the equipment on the high-speed shaft, but for the safety requirements of large-scale equipment (such as mine elevator, lift, etc.) should be installed in the low-speed shaft near the working part of the equipment. Some brakes have been standardised and serialised, and manufactured by professional factories for selection. Block brake is a brake that relies on the brake block to be pressed on the brake wheel to achieve braking. A single brake block on the brake wheel axle pressure is large and uneven, so usually more than a pair of brake blocks, so that the brake wheel axle by the pressure of the brake block offset.

There are two types of block brakes: external and internal:

①Outside embracing block brake: It is divided into short-stroke block brake and long-stroke block brake according to the length of the travel of the operating device. The magnet of the short-stroke block brake is directly mounted on the brake arm. When working, the dynamic iron core rotates around the pin to loosen the brake; when the magnet is de-energised, the main spring is used to tighten the brake. This type of brake has a compact structure, fast tightening and loosening action, but with a large impact force. Long stroke block brake can produce large loosening force through the brake lever system, but the braking action is slow, suitable for large brakes.

②Internal Tension Block Brake: The brake block is located inside the brake wheel, and the pedal, lever and cam make the brake block open, pressing the inner surface of the brake wheel to tighten the brake, and releasing the pedal, the spring pulls back the brake block to loosen the brake. This type of brake can also be operated by hydraulic or pneumatic pressure. Internal tensioning block brakes are compact, dustproof, and can be used in applications where installation space is restricted, and are widely used on a variety of vehicles. This standard applies to external double block brakes.