Home > News > Content
Family Use Oil Press Machine Slow Down The Hydraulic Shock
Jul 14, 2017

Hydraulic machine repair Family Use Oil Press Machine common fault handling:

1. In the course of the operation of the motor suddenly stopped: Possible reasons: 1. Overheating, protection of hydraulic machine repair machine to jump; 2. Three-phase voltage imbalance; 3. Accessories damaged. Processing methods: 1 by hand press the thermal protector blue button to reset, check the motor is overloaded; 2. Check the three-phase voltage; 3. Replace the accessories.

2. Start the dual-button machine No action: Possible reasons: 1. Optoelectronic eye safety hand without induction; 2. Part of the limit switch Family Use Oil Press Machine maintenance input signal without induction; 3. Under pressure time is too short; The Processing methods: 1. Adjust the photoelectric eye safety hand on the ray so that the sensor light green; 2. Adjust the cylinder, cylinder limit switch; 3. Adjust the press time; 4. Replace the accessories.

3. Pressure instability; Possible reasons: 1. Hydraulic machine maintenance machine used a long time the pump pressure regulator valve spool activity is not sensitive; 2. Cylinder or solenoid valve channeling oil, hydraulic oil cooling is not good; 3. Accessories damaged; Hydraulic oil used for too long;

To repair or replace the pressure regulating valve; 2. Repair or replace the solenoid valve and use the cooling water device to cool the hydraulic oil; 3. Replace the cylinder seal; 4. Replace the same hydraulic oil

4. Abnormal sound; Possible reasons: 1. Machine used for a long time part of the fastener loose; 2. Motor bearing sound; 3. Pump sound; 4. Inhalation of oil filter block and oil hydraulic machine maintenance tank oil level is too low ; Repair methods: 1. Use a wrench and other tools to tighten the fasteners; 2. Repair or replace the motor bearings and other accessories; 3. Repair or replace the pump accessories; 4. Wash the oil filter and refueling to the oil standard on the hydraulic machine maintenance limit position

Family Use Oil Press Machine direct drive hydraulic machine has the following characteristics

1, the hydraulic machine activity beam travel speed depends on the pump supply volume, and the process of forging deformation resistance has nothing to do. If the pump supply capacity is constant, the working speed of the Family Use Oil Press Machine is fixed.

2, the pump supply pressure and the power consumption of the workpiece and the deformation resistance of the workpiece, the work of deformation resistance, the pump supply pressure and the power consumption is also large, otherwise small.

3, can use the activities of the beam speed constant and pump pressure changes in the characteristics of the flow as a signal to manipulate the distributor to achieve automatic control of the Family Use Oil Press Machine.

4, the basic investment province, small footprint, daily maintenance and maintenance simple. The Family Use Oil Press Machine in the pump direct drive system is selected according to the maximum working speed and working pressure of the Family Use Oil Press Machine, and the Family Use Oil Press Machine is not fully utilized when the Family Use Oil Press Machine is in the filling process, the return process, the auxiliary process and the required working pressure are small. Is a large tonnage of the Family Use Oil Press Machine, the utilization factor is very low. Therefore, the Family Use Oil Press Machine tends to classify the working speed and working pressure

Hydraulic system hydraulic system due to stop the hydraulic shock in the actual production is inevitable, seriously affect the efficiency of the Family Use Oil Press Machine, so we should take positive measures to deal with, to avoid the usual way to avoid high pressure is set in the loop relief valve and slow down the hydraulic Impact.

(1) in the hydraulic circuit set in the relief valve, to avoid abnormal external high-pressure circuit. When the cylinder 1 is stopped, the pressure in the cylinder is increased due to the inertia effect, and the relief valve is provided to avoid the abnormal high pressure. To avoid the components do not move the circuit caused by abnormal high pressure. When the cylinder 2 is lowered, if the balance valve 1 does not act, the piston rod side is abnormally high, and the relief valve 3 is provided to avoid this condition. To avoid the suspension of abnormal high-pressure circuit. When the hydraulic motor 2 drives the inertia load and the reversing valve 1 returns to the neutral position, a large hydraulic shock occurs, and the brake valve 3 is provided to release the compressed high pressure oil and pass through the check valve from the tank Inhalation of oil to fill the other side of the tubing in the vacuum, to prevent cavitation.

(2) slow down the hydraulic shock, the use of flow valve to reduce the hydraulic shock of the circuit. At the time of starting, the electro-hydraulic directional valve 1 and the electromagnetic directional valve 2 are commutated together, and the opening of the flow valve 3 is gradually opened and the motor 5 is slowly operated. The opening of the flow valve 3 is controlled by the electromagnetic switching valve 2 at the time of stopping, and the motor speed is slowed down, and the electrohydraulic valve 1 is in the center and the motor is completely stopped. Acceleration and deceleration times are adjusted by the equipment. Reducing the hydraulic shock can also be done by setting the hydraulic cylinder end point buffer and stroke saving control.

Reducing the hydraulic shock of the Family Use Oil Press Machine can also be achieved by setting the hydraulic cylinder short point buffer and stroke throttling control. In the Family Use Oil Press Machine hydraulic circuit set in the relief valve, the method is to prevent abnormal external high-pressure circuit. When the hydraulic cylinder is stopped, the pressure in the cylinder is increased due to the inertia effect, and the relief valve is provided to prevent abnormal high pressure.


Henan Vic Machinery Co.,Ltd