The working principle of this brake is more complex, as follows:
First, the power system provides the electrical energy required by the drum brake. The electric energy is transmitted to the controller through the wire, and the controller will control the start and stop of the brake and the strength according to the user's instructions. Secondly, the hydraulic system is the key to achieve the braking effect, and the hydraulic system is composed of oil pump, oil tank, oil pipe, oil cylinder and hydraulic pipeline. When the controller issues the brake command, the oil pump will extract the hydraulic oil from the tank and transfer it to the oil cylinder through the tubing. The piston in the cylinder will move accordingly, and then the brake shoe on the brake drum will be subjected to a certain pressure, so as to achieve the braking effect. In the braking process, the brake wheel plays a key role as a brake couple. When the braking command is issued, the compression elastic yellow will release the elastic potential energy and push the lever mechanism, so that the two brake blocks arranged symmetrically hold the brake wheel in the radial direction, resulting in braking torque. This braking torque can effectively slow down or stop a mechanism or machine, and is sometimes used to regulate or limit its speed of movement. When the brake command is lifted, the hydraulic system automatically recovers the hydraulic oil into the tank, the piston is restored to its original position, and the contact force between the brake shoe and the brake drum is gradually reduced until it is completely lifted. The electric hydraulic drum brake has the advantages of compact structure, stable braking, safe and reliable, high operating frequency, uniform force of brake and brake couple. It is widely used in all kinds of lifting, transportation, water conservancy, chemical machinery and light industrial machinery static and running parts of the brake, play a role in safety protection.
Note that the specific operation method may vary with different devices and applications. Therefore, in actual use, you are advised to refer to the user manual of the device or the guidance of professional personnel to perform operations. At the same time, in order to ensure the normal operation of the brake and its service life, it is necessary to carry out regular maintenance and inspection to ensure that it is in good working condition.
