Rectification of crane cart
With the development of Lifting crane industry, For the carts traveling have request a higher requirements. Due to large span, uneven rails, motor drive inconsistencies and other reasons, will cause the car to walk on both sides of the same situation, then the crane deflection of the steel structure and other unsafe factors that may cause serious consequences of crane collapse. Crane in some industries require more accurate positioning. The above reasons cause the user inconvenience or economic losses, so that develop to create a cart correction control device. Within the scope of your work to set the crane travel error within your controllable range, the operation more convenient, to avoid the carts to run security incidents. Easy to use, man-machine dialogue, the whole Chinese interface display; safe and reliable, more stable crane traveling
Cart synchronous correction using automatic and manual dual protection. Under normal circumstances, the vehicle automatic correction, when the cart to the synchronization error, such as: 100 ~ 200mm between the automatic correction; when it reaches 200 ~ 300mm, the cart automatically slow down and quickly correct the alarm when the cart synchronization error greater than 300mm , Issued a sound and light alarm, while automatically cutting off the cart traveling power, manual correction. The asynchronous error of the cart can be displayed on the touch screen in real time. In the use of bridge crane, because of its large span, low stiffness, making the manufacture and installation of transmission mechanism is difficult to guarantee, especially the frequent operation of the crane transmission mechanism of accumulation error is greater. Resulting in most of the bridge cranes have different degrees of carts deviation or bite the rail phenomenon. This greatly threatens the safe operation of cranes and increases the cost of operation and maintenance.
In the large-span gantry crane is usually equipped with corrective devices, used to indicate and adjust the amount of deviation of door movement. Large span door machine in operation, due to both sides of the legs to run different resistance, wheel slip, wheel diameter differences and other reasons, often appear on one side of the leg ahead of the other side of the phenomenon. When the lead amount (or deflection) exceeds a certain value, the running resistance of the mechanism and the internal force of the metal member are increased, which may cause burnout of the running motor or damage of the metal member, thereby reducing the safety of the driving device and the metal member Sexual and life, and even make the door machine can not work. The use of deviation correction device safety and reliability; acquisition of the skew signal continuous, high precision rectification; external factors on the impact of the skew signal is small; adjust both sides of the motor drive speed, automatically correct the skew of the frame. Therefore, it is of great importance to install and correct the carts on the large span gantry crane, and to prevent and eliminate the phenomenon of wagon deviation or gnawing.
Products need to solve the problem:
1, in the orbit of any position can be initialized zero; start rectification work, other products need to specify the location of zero.
2, to solve the big problem of crane travel, generally about 200 meters; data can not have overflow.
3, anti-interference ability: wheel over the track joints produce the moment of skew, their rigid can be adjusted, the system needs to identify
4, with any form of operation of the circuit interface control;
5, on both sides of the wheel diameter deviation of the error filter;
6, record the cumulative deviation to eliminate;
7, long-distance sensor data transmission interference problems