Jiaozuo brake

High quality electric hydraulic thruster ED80/6

The ED 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.

When energized, the electric motor drives the rotor shaft and the impeller on the rotor shaft to rotate, generating pressure inside the piston. Under the influence of this pressure, the oil

Suck from the upper part of the piston to the lower part, forcing the piston and the push rod and crossbeam fixed on it to rise rapidly. By mechanically compressing the load spring through a lever (if the thruster or brake is equipped with a load spring), mechanical motion is generated.

When the power is cut off, the impeller stops rotating, and the piston rapidly descends under the force of the load spring and its own gravity, forcing oil to flow back into the upper part of the piston. At this time, it still returns to its original position through the lever mechanism.

Electric hydraulic thrusters are often used in conjunction with brake frames and are widely used for braking various transmission devices.

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ED series electric hydraulic thrusters

1、 Overview

Ed series electric hydraulic thruster is a very compact driving control device integrating motor, centrifugal pump and oil cylinder, which is widely used as the driving device of various block brakes and disc brakes, and can also be used for the driving control of various industrial valves, gates, directional swing and rotation (<90 °) devices (mechanisms) and clamping devices.

2、 Design Features

The shell is made of cast aluminum alloy, with light weight and beautiful appearance;

The motor is of non oil immersed structure, with Class B or F insulation (according to user requirements). Good heat resistance and long service life;

The motor junction box cover is equipped with a seal and uses a cable stuffing box for incoming lines, which is firm and reliable. The electrical casing protection level reaches IP55;

The surface of the motor shaft and push rod are plated with hard chromium treatment, greatly extending the service life of the sealing element; thirteen billion eight hundred and three million nine hundred and ten thousand seven hundred and eighty-eight

The oil cylinder shell is equipped with a balance chamber on one side, which can allow the thruster to be installed in any direction from 0 to 180 °, thereby expanding its range of use;

All seals and bearings of the Ed series are made of world-renowned products, with reliable sealing and long service life;

The Ed series fasteners are made of stainless steel material, which is beautiful and durable.

3、 Selection of installation method

Vertical installation: the piston rod connecting block faces upwards;

Horizontal installation and any position in the middle: the main parameter label faces upwards;

All push rod connection blocks of thrusters can rotate. The Ed50-Ed301 fixed seat can rotate 90 °, while the Ed23-Ed30 fixed seat can also provide 90 ° rotation, but the installation height dimension A is increased by 8mm;

Regardless of the installation position, the piston rod cannot withstand any force to avoid affecting its effectiveness and lifespan.

4、 Additional devices

Various additional devices can be installed according to user needs to meet different work needs;

Rising or falling valve: the rising valve "H", the falling valve "S" or the rising and falling valves "H, S" can extend the rising and Fall time steplessly, and the adjustable value can reach 10-20 times of the rated value. The valve is adjusted externally. The rising and Fall time time of the thruster with valve will be extended, the short stroke will be extended by 0.1-0.2s, and the long stroke will be extended by 0.2-0.4s;

Brake spring: It generates braking force, and the spring force listed in the technical parameters is 1/3 of the rising stroke (2/3 of the falling stroke);

Return spring: The working principle is the same as C-spring, but the return spring force is relatively small;

Cushion spring: (only applicable to short stroke) mainly regulates the braking process. The non periodic transient process of buffering braking ensures smooth braking. It replaces the connecting block of the push rod and is installed on the piston rod without changing the stroke of the pusher.

Heater: In areas with ambient temperatures below -20 ℃, additional heaters can be installed according to user needs. The heaters are AC200V or AC110V voltage, and should be specified when ordering. The temperature control and adjustment method is chosen by the user themselves;

Travel switch: According to user requirements, the pusher can be equipped with a mechanical travel switch.

Purpose

The ED series electric hydraulic thrusters are mainly used as operating components for the YWZ4, YWZ5, YWZ8, YWZ9, and YWZP series electric hydraulic block brakes, widely used in industries such as lifting and transportation, metallurgy, mining, ports, and construction.

Normal working conditions

Motor 1/2 three-phase AC asynchronous motor, in accordance with (G 755-87) regulations, insulation level: F level

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%

Vertical installation: piston connection block facing upwards, horizontal installation: marked label facing upwards: (ED630/12 male is suitable for vertical installation)

Main technical parameters

Model rated thrust

(N) Rated stroke

(mm) Action stroke brake spring force

(N) Rated frequency

(Hz) Input power

(W) Rated voltage

(V) Rated current

(A) Working frequency weight (kg)

Rising and falling

Short stroke thruster deviation ± 20%

Ed23/5 220 50 0.35 0.35 180 50 165 380 0.52 2000 10

Ed30/5 300 50 0.35 0.35 270 50 200 380 0.46 2000 14

Ed50/6 500 60 0.45 0.39 460 50 210 380 0.48 2000 14

Ed80/6 800 60 0.32 0.34 750 50 330 380 1.42 2000 24

Ed121/6 1250 60 0.4 0.42 1200 50 330 380 1.44 2000 39

Ed201/6 2000 60 0.5 0.32 1900 50 450 380 1.45 2000 39

Ed301/6 3000 60 0.58 0.32 2700 50 550 380 1.46 1500 40

Purpose

Continuously work S1 and continue working S3, and the ambient temperature of chicken feathers reaches+50 ℃.

The rated current in the table refers to the line terminal current during rated operation, but if the power supply is at a non rated value, it will inevitably cause a corresponding change 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 ℃.