Moment limiter of truck crane - Overpasscrane computer, safe load indicator,Marine CCTV Camera System

Moment limiter of truck crane

Time:2015-03-16 09:01 Read:24822 Source:Internet

Truck crane is a kind of crane installed on the chassis of ordinary or special vehicles. Its driving cab and lifting control room are set separately. It is mainly used for engineering construction. Such as roads, bridges, buildings, emergency rescue, etc. General engineering teams, construction industry and power installation departments all need truck cranes.

When the truck crane is working, the boom will expand and contract to change the length and change the working angle to affect the rated working load. At the same time, due to the structure of the truck chassis, the rated working load of the truck crane will change when the working direction of the truck crane changes, and all the truck cranes cannot work beyond the designed working torque performance.


Solution:

In order to enable the truck crane to work within the safe working load range, there must be a monitoring system to automatically and real-time monitor the lifting load of the crane, the telescopic length of the boom and the working angle of the boom, and give an alarm when the crane is in dangerous working conditions, and at the same time, output control signals to limit the crane to continue to move in the dangerous direction.



Wtl-a200 torque limiter produced by Weite Electronic Equipment Co., Ltd. can fully meet the torque limit of truck crane for safe use.
1. Display function
The torque limiter can comprehensively display various parameters in the working process in the form of Chinese characters, graphics and characters.
Such as the lifting weight of the main hook, the lifting weight of the auxiliary hook, the working angle of the boom, the length of the boom, the working radius, etc;

2. Alarm function
It has sound and light alarm function: when the working range of the crane boom is close to the working limit, and when the lifting load and torque are close to the current allowable load limit of the equipment, the torque system will send out a slow warning buzzer. The warning indicator of the torque system flashes slowly.
When the working range of the crane boom reaches the working limit, and when the lifting load and torque reach the current allowable load limit of the equipment, the torque system will send out a rapid alarm buzzer. The alarm indicator red light of the torque system flashes rapidly.

3. Torque protection function
Control output function: when the working range of the boom is close to the working limit, when the lifting load and torque are close to the current allowable load limit of the equipment, the torque system outputs control signals to prevent the crane from continuing to run in the dangerous direction and allow the crane to move in the safe direction.

matters needing attention:
The driving motor of truck crane is mostly hydraulic, so the solenoid valve for controlling the oil circuit is an essential equipment component.
Before installing the torque limiter, check the oil circuit solenoid valve of the crane to make it work normally.