Introduction to the principle and working principle of hydraulic lock


The hydraulic lock uses the pressure of the hydraulic oil to lock the moving parts in a set position through the lock core to play a protective role.

The principle of 1. hydraulic lock

The hydraulic lock uses the pressure of the hydraulic oil to lock the moving parts in a set position through the lock core to play a protective role. When hydraulic oil enters the lock nozzle of the hydraulic lock, it will push the lock cylinder and move it, which in turn will fix the locking screw in the required position. The hydraulic lock is mainly composed of a lock cylinder and a lock nozzle. When the hydraulic lock is in an unlocked state, the hydraulic oil enters the lock nozzle and passes through the lock cylinder, so that the locking screw is in a loose state and the moving parts can move freely.

The working principle of 2. hydraulic lock

The working principle of the hydraulic lock is that when the moving parts move to the position that needs to be locked, the signal generator sends a signal to the hydraulic system to make the hydraulic lock enter the working state. At this time, the hydraulic lock through the solenoid valve will pressure oil into the lock mouth, so that the lock cylinder top open, locking screw and moving parts contact, to achieve locking. When the moving parts need to be moved, the hydraulic lock discharges the timing oil through the solenoid valve, the lock cylinder automatically returns, and the locking screw leaves the moving parts and moves freely.

Hydraulic locks are widely used in machinery manufacturing, steel, petrochemical, shipbuilding, metallurgy, construction, hydropower and other industries. While ensuring the safe operation of equipment, it can reduce the labor intensity of workers, improve production efficiency, and save costs for enterprises.

Application scene of 3. hydraulic lock

Hydraulic lock is suitable for all kinds of large mechanical equipment in hydraulic system. Such as cranes, presses, punches, punching machines, rolling machines, road rollers, loaders, excavators, milling machines, drilling machines, grinders, etc. In these devices, the hydraulic lock is a very important safety protection device.

This paper introduces the principle, working principle and application scenario of hydraulic lock, hoping that readers can better understand the role and significance of hydraulic lock, and better ensure work safety.

Related News


What are the hazards of internal leakage of multi-way valves?

When the internal leakage of the multi-way valve occurs, the hydraulic oil leaks from the high-pressure chamber to the low-pressure chamber, so that the effective flow of the supply components (such as hydraulic cylinders or hydraulic motors) is reduced.


How to solve the problem of internal leakage of multi-way valve?

Seal inspection: first of all, the multi-way valve needs to be disassembled and the internal seals are carefully inspected. The seal may be a rubber seal, a combination seal, etc.


What is the working principle and function of the multi-way valve?

Use the relative movement of the valve core to the valve body to turn on, turn off or change the direction of the oil flow


Introduction to the principle and working principle of hydraulic lock

The hydraulic lock uses the pressure of the hydraulic oil to lock the moving parts in a set position through the lock core to play a protective role.


What are the good or bad detection methods of hydraulic lock?

The quality of hydraulic lock can be tested by static test and dynamic test.

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