Specializing in the production of DYTZ electro-hydraulic push rods electro-hydraulic push rods

Electro-hydraulic push rod
Electro-hydraulic push rod
Hydraulic push rod
Electro-hydraulic push rod
Electro-hydraulic push rod, that is, electro-hydraulic push rod, is suitable for reciprocating push and pull It can move linearly or reciprocally at a certain angle. It can be used in places where work is raised, lowered or clamped. It can also be used in remote and high-altitude dangerous areas. It can also be connected to a computer for centralized program control. Now it is widely used in metallurgy, mining, coal, electric power machinery, food, cement, chemical industry, water conservancy and transportation and other departments. It is an indispensable universal power source. Working Principle

The electro-hydraulic push rod uses an electric motor as the power source, and the electric motor rotates forward and reverse, so that the hydraulic oil outputs pressure oil through the two-way gear pump, and is sent to the working oil cylinder through the oil circuit manifold block to realize Reciprocating motion of the piston rod. Advantages

It has automatic overload protection function. When the electro-hydraulic push rod is working, if the external force on the piston rod exceeds the rated output force or the piston has reached the end point, the motor is still rotating. At this time, the oil pressure in the oil circuit When the pressure is increased to the set value, the overflow valve will overflow quickly and accurately to achieve automatic overload protection. Although the motor is rotating, it will never burn out.
Self-locking function A pressure self-locking mechanism is designed in the oil circuit integrated block of the electro-hydraulic push rod. When the motor stops rotating, the piston rod immediately stays in a certain position, and the pressure oil is in a pressure-maintaining state.
Stepless adjustment can be carried out within the rated speed output force and stroke range according to user requirements.

Modeling Description
The electro-hydraulic push rod is mainly composed of six basic elements such as the type of the push rod, the protection level of the motor, the rated output force, the stroke, the rated speed, and the angle of use. It can also be customized according to the special requirements. According to the requirements, it is equipped with three adjustment functions, namely speed adjustment, push-pull force adjustment, and stroke adjustment. Except for the above three adjustment functions, which must be clearly stated when ordering, please refer to the model preparation method and fill in the six major elements carefully.
Integral straight electro-hydraulic actuator technical parameter selection table

Model
Rated output force


Rated speed


Motor model
Stroke manufacturing range


Stroke manufacturing range



Thrust
Pull force
Push speed
Pull speed

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Note
The voltage level of the motors listed in the above table is
, the protection level is
, and the insulation level is
B
.
If it exceeds the stroke manufacturing range or speed manufacturing range listed in the table, please indicate it separately. Otherwise, it will be manufactured according to the technical parameters in the table.
The speed range in the table is for horizontal use. The speed for upward or downward use is half of that for horizontal use.
The typical numbers and powers listed in the table are the power of this type of push rod when the rated output force and rated speed are at the maximum value. Motor power is directly proportional to the push rod thrust speed.
Precautions during installation and use

The electro-hydraulic actuator must be installed with sufficient space, and special orders must be made for high-temperature environments.

Users can configure the limit switch according to control needs.

Before installing the electro-hydraulic push rod, place it flat on the ground and inject the hydraulic oil grade
Accuracy level
The oil level is at the lower edge of the observation port. The oil level of the split push rod should be at
Within the box.

The exhaust screw ring of the exhaust hole should be loosened before use.

Try booting the computer during installation.

Integral push rod, connected to the power supply, it can operate
b
Split push rod, connected to the power supply, allows the cylinder to reciprocate several times without load to make the cylinder and The air in the oil pipe is discharged and the load is put on it
Maintenance of the electro-hydraulic push rod

In order to ensure the service life of the high-pressure oil pipe, the oil pipe must be fixed with rubber.

Hydraulic oil should be filtered or replaced regularly, once a year or according to the actual work.

If it is not used for a long time, the insulation of the motor should be checked before putting it into use.

Simple troubleshooting

It cannot operate when it is first installed. Check that the motor is not running or there is insufficient oil.
b
If it cannot operate after being used for a period of time, remove the hydraulic control plug, clean the spool of the hydraulic control valve, and replace the hydraulic oil.
After being used for a long time, the push rod can be pushed and pulled without load, but cannot stand with load. Replace the seal for the upper hole of the piston in the cylinder. If the sealing surface leaks, replace the seal. If oil drips from the extension of the oil plug rod, replace the shaft seal.
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