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Let's talk about the impact.ElevatorVertical Speed Factor

At present, most lifts use hydraulic cylinders for lifting, mainly because the hydraulic system has a stable lifting operation mode, which is safe and has a heavy load. For equipment that uses hydraulic system to lift, its vertical speed mainly depends on the following points:

1. When the speed of the lifting platform slows down, many customers will immediately adjust the safety valve to increase its operating speed by increasing the system pressure. In fact, this is incorrect. The reason why the overflow valve is configured is mainly to prevent the hydraulic system pressure Too high can play a role in protecting the hydraulic system. It is very dangerous for the set value of the safety valve to exceed the safe value of the hydraulic system design, increasing the pressure of the hydraulic system cannot increase the hydraulic lifting speed. Only when the equipment cannot be started normally with load, the hydraulic system needs to be checked.

2. The elevator hydraulic oil is of poor quality and many impurities, which will cause blockage and slow down its running speed, so pay attention to keeping the hydraulic oil clean.

3. The diameter of the hydraulic cylinder and the flow rate of the hydraulic cylinder. The speed of the hydraulic lift is inversely proportional to the cross-sectional area of the cylinder piston rod, and is proportional to the flow rate of the hydraulic oil. After the hydraulic cylinder is selected, the diameter of the hydraulic cylinder is fixed, so when the hydraulic lift When the speed of the device slows down, it should be analyzed from the perspective of hydraulic oil flow.

4. The hydraulic pump will affect the flow of the hydraulic oil. The hydraulic pump is prone to problems if it is used for too long. Therefore, when the speed of the hydraulic lifting platform slows down, attention should be paid to check whether the oil supply flow of the hydraulic pump is stable.

Large voltage changesElevatorWhat's the impact?

The following is a brief analysis of the impact of the voltage on the equipment.

1. When the voltage is too high (higher than 10%), the iron core magnetic circuit is saturated (because when designing the motor, the magnetic circuit under the rated voltage is generally near the saturation point). The increase of the main magnetic flux will cause the excitation current to increase sharply (several times the added value of the applied voltage), thus causing the stator current to increase and the motor to overheat, resulting in the temperature rise exceeding the allowable value and burning.

2. When the elevator runs at low voltage for a long time, because the power is unchanged, the low voltage leads to high current, and the direct consequence is that the motor heats up due to overcurrent, resulting in motor damage. Generally, the normal fluctuation range of motor voltage is between 10% and-5%, that is, when the power supply voltage is 380V, the allowable working voltage of the motor is 418-36l.

Voltage instability is easy to burn out various electrical components in the operation box, thus making the equipment unable to receive control signals. Frequent voltage instability will directly burn out the motor. Therefore, if it is found that the motor cannot operate normally or makes buzzing noise during use, you should first check whether the power supply voltage is abnormal, and then look for problems from other aspects if it is normal. The above is about voltage changesElevatorIn the analysis of influence, everything has a degree, and so is the change of voltage. Only by changing within a reasonable range can the stable operation of the equipment be guaranteed.

The above is the content of the small editor's explanation. I hope it can help you. Thank you for watching. I'll see you next time.