ZYTJX-120 HYDRAULIC RAIL CLAMP

1. Mechanical braking part
2. Hydraulic power station part
The work of hydraulic spring-type rail clamp is that the spring clamps the rail under its own pressure. When the cart is walking, the hydraulic station drives the hydraulic cylinder to open the rail clamp. When the cart is walking, the hydraulic station system must be powered on and the rail clamp is in the open state. After the cart stops, the hydraulic station is cut off, and the rail clamp will automatically clamp under the action of the spring.
principle of operation
The hydraulic spring-type rail clamp uses spring pressure to clamp the clamp, and releases the clamp against the hydraulic cylinder. The hydraulic pump station provides pressure oil and controls the electromagnetic valve to make the hydraulic cylinder work. The oil pump is interlocked with the crane operating mechanism. When the crane walks, open the rail clamp first. After the clamp mouth is fully opened, the oil pump motor is pulled off by the limit switch (the solenoid valve is still energized). At the same time, the interlocking circuit of the crane walking motor is connected, and the main engine starts to walk. After the oil pump motor is cut off, the hydraulic system always keeps the clamp in the open position due to the pressure maintaining effect of the one-way valve and solenoid valve.
However, due to the internal leakage in the hydraulic system, after the clamp is opened, the opening degree will be reduced to a certain extent after a period of time. Under the action of the limit switch, the time relay will be cut off and the oil pump motor will be connected, and the oil cylinder will be replenished again to restore the clamp to the fully opened position. At this time, the limit switch will cut off the oil pump motor and the on-time relay. In this process, due to the time delay of the time relay, the interlocking relay of the cart walking is always energized, so it will not affect the normal walking of the cart, which is very important! When the solenoid valve is de-energized, the clamp automatically clamps the track to achieve the wind-proof braking effect and at the same time produce the rollover prevention effect. The rail clamp is connected with the crane in a floating way, which is convenient for rail centering and can meet the crane deviation requirements.

Each action of that rail clamp is automatically control by program logic, which reduces the impact when the travel mechanism of the cart is started, and is provided with an automatic fault detection function and a display device, so that the degree of automation is high;
Has good wind braking performance and can implement dynamic emergency braking;
Equipped with manual release lever and limit switch, which can be interlocked with the traveling mechanism to ensure the safety and reliability of the crane.
. Anti-corrosion design, with good anti-corrosion performance
. Special jaw design is convenient for maintenance and replacement.
The friction coefficient is above 0.59, and it has high wear resistance and long service life.
Above all, we can see that the hydraulic spring rail clamp is more advanced, which not only has a higher degree of automation, but also greatly improves the wind-proof braking performance. Moreover, the friction coefficient of the hydraulic spring rail clamp produced by Hejim Electromechanical Technology (Xi 'an) Company can be kept above 0.59, and the wear resistance and service life of the rail clamp are also improved.

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