Hengyang Heavy Industry hydraulic wheel side brake YLBZ40-150 set limit switch

External Block Brake

It is divided into short-stroke block brake and long-stroke block brake according to the length of travel of the actuator. The magnet of the short-stroke block brake is directly mounted on the brake arm. When working, the movable iron core rotates around the pin to loosen the brake; when the magnet is de-energised, the brake is tightened by the main spring. This type of brake has a compact structure, fast tightening and loosening action, but the impact force is large. The long stroke block brake can produce large loosening force through the brake lever system, but the braking action is smooth, suitable for a variety of large and small speed reduction equipment.

The purpose of this utility model is to provide a hydraulic wheel side brake with simple structure, small size, safer and lower cost. In order to achieve the above purpose, the utility model adopts the following technical solutions hydraulic wheel brake, including the base, the base is provided with a vertical plate, the left and right brake arm of the middle and vertical plate hinged through the pin, the left and right brake arm on the same side of the end of the hinge through the pin and the brake block, the two brake blocks relative to the direction of the setting, the other end of the right brake arm and the base of the hydraulic device hinged, the hydraulic device is provided with a piston at the back end of the screw, the screw is provided with a connecting linkage to the hydraulic device. The piston of the hydraulic device is equipped with a screw, the screw is equipped with a connecting block, the other end of the left brake arm is connected to the connecting block by transmission, and the connecting block is equipped with a limit switch, and the limit switch is correspondingly located with the hydraulic device's gland in the horizontal direction. The middle part of the said brake block is provided with an elastic spring between it and the vertical plate. A ribbed plate is provided vertically fixed between said base and the vertical plate. A spring is provided between the piston of the hydraulic unit and the base. Said brake block is provided with wear-resistant material. The utility model is a safety braking device designed specifically for the failure protection of mining equipment, which is not only simple in structure, practical in function and small in size, but also lower in cost, safe and reliable. The introduction of limit switch greatly improves the safety and reliability of the brake, and the elasticity of the spring keeps the brake block parallel to the brake wheel.