Jiaozuo brake

The Ed series electric hydraulic thrusters are mainly made of cast aluminum alloy for the outer shell, which is very beautiful in appearance and lightweight in quality. The motor is mainly made of a non immersed structure. The surface of the motor shaft and push rod of the Ed series electric hydraulic thrusters are treated with hard chromium plating, which has excellent sealing performance and can effectively extend the service life of the sealing components

Ywz, Ywz4, Ywz5, Ywz8, Ywz9, YWZ13 and other series of electric hydraulic brakes use Yt1, Ytd, ED, and YT3 series thrusters as the driving devices for the brakes.

Mainly suitable for mechanical braking of lifting, transportation, metallurgy, mining, port, and construction machinery movement devices. The brake using a single push rod electric hydraulic thruster as the driving device has excellent technical indicators such as fast action speed, long service life, and allowable high operating frequency compared to the brake using a double push rod.

Service conditions and procedures

-Environmental temperature: -25 ℃ n+45 ℃ - The relative humidity of the air is not more than 90%, - In a medium without explosion risk, and there is no gas or conductive dust in the medium that can corrode metals and damage insulation - The elevation of the installation site meets the GB755-87 standard; For three-phase 380v50Hz AC power supply

Working principle and structural characteristics

1. Structural features

The brake mainly consists of a base, brake arm, brake shoe, spring, lever, thruster, and other parts. The thruster mainly consists of two parts, the driving motor and the body (centrifugal pump), and the body part is composed of a cover, cylinder, piston, impeller, and rotor shaft.

2. Working principle

When the thruster is powered on, the electric motor drives the shaft and the impeller on the shaft to rotate, generating pressure inside the piston, causing the push rod fixed on the piston to quickly rise, and pushing the connecting lever to compress the main spring to open the brake shoe, allowing the mechanism to move. When the thruster is powered off, the force of the main spring compresses the brake shoe onto the brake wheel of the mechanism, causing it to stop moving.

The adjustment of the brake shoe backlash of the electric hydraulic brake, due to the automatic clearance adjustment performance of the electric hydraulic brake, the gap between the left brake shoe and the brake shoe can always remain unchanged as the brake shoe wears, but the gap between the right brake shoe and the left brake shoe gradually increases with the wear of the brake pad. It is necessary to adjust it in a timely manner according to the situation to ensure that the brake shoe backlash on both sides is basically uniform.

The stroke adjustment of the electric hydraulic thruster ensures that the working stroke of the electric hydraulic thruster is ideal as long as the brake shoe of the electric hydraulic brake has less backlash. Therefore, it is necessary to adjust the height of the electric hydraulic thruster. The electric hydraulic thruster consists of two parts, driving the electric motor and the body (centrifugal pump). The body part is composed of a cover, cylinder, piston, impeller, and rotor. Electric hydraulic thrusters are often used in conjunction with brake frames and are widely used for braking various transmission devices. It can continuously work S1 and continue working S3, with a basic ambient temperature of+50 ℃.

The rated current in the table of electric hydraulic thrusters refers to the line end current during rated operation, but if the power supply is not at the rated value, it will inevitably cause corresponding changes in the rated current. Environmental temperature: -20 ℃~+50 ℃, hydraulic oil: DB-25 (SY1351-77) When it is below -20 ℃, YH-10 hydraulic oil can be used without a heater. When using DB-25 hydraulic equipment, a heater must be installed. The travel time is measured at an ambient temperature of 20 ℃.

When the electric hydraulic brake is energized, the electric motor drives the transmission shaft and the impeller on the shaft to rotate, causing pressure to occur inside the piston. Under this pressure, oil is sucked from the upper part of the piston to the lower part of the piston, forcing the piston and the push rod and crossbeam fixed on it to rise rapidly. Mechanical movement occurs by mechanically tightening the load tension spring through a lever (if the thruster or brake is equipped with a load tension spring)