Jiaozuo brake

All seals and bearings of the Ed series electric hydraulic thrusters are imported products, with reliable sealing and long service life;

Usage conditions

Continuous operation S1, continuous operation S2, load duration FC=60%

Rated voltage is 380V three-phase, frequency 50Hz

The altitude level of the location of use complies with the GB755-87 standard

The ambient temperature should be within the range of -20 ℃ to 40 ℃, and the relative humidity of the air should not exceed 90%

Environmental temperature: -20 ℃~+50 ℃, using DB-25 hydraulic oil: BED electric hydraulic thruster holding brake, coal mine crane aluminum tank

The electric hydraulic thruster is composed of components such as rotor 1, stator 2, blades 3, oil distribution plate, and end cover; The inner surface of the stator is a cylindrical hole; There is eccentricity between the rotor and stator; The blades can slide flexibly in the slots of the rotor. Under the centrifugal force during rotor rotation and the pressure oil flowing into the blade root, the top of the blades is tightly attached to the inner surface of the stator, forming sealed working cavities between two adjacent blades, oil distribution plates, stator, and rotor; When the rotor rotates in a counterclockwise direction, the blade on the right side of the figure extends outward, and the volume of the sealing working chamber gradually increases, creating a vacuum. Therefore, oil is sucked in through the suction port 6 and the window on the oil distribution plate 5; On the left side of the figure; The blades retract inward, and the volume of the sealing chamber gradually decreases. The oil in the sealing chamber is pressed out through another window of the oil distribution plate and the oil pressure port 1 and output to the system; This type of pump absorbs and presses oil once during each rotation of the rotor, hence it is called a single acting pump; The rotor is subjected to radial hydraulic imbalance force, so it is also known as a non balanced pump, and its bearing load is relatively large; By changing the eccentricity between the stator and rotor, the displacement of the pump can be changed, so these pumps are variable displacement pumps.

ED electric hydraulic thruster BED30 explosion-proof mesh diagram