As a common transportation tool in construction sites, tower cranes are responsible for the rapid movement of large-scale construction materials. With the rapid development of modern urban construction, the requirements for mechanization and automation of construction construction are becoming higher and higher. Tower cranes have become one of the indispensable large-scale construction machines on construction sites.
Sine Electric has entered the construction lifting industry in 2009. Relying on its rich experience accumulated in the construction industry, Sine Electric has independently developed and launched Sine Electric tower crane industry solutions, achieving precise control of the crane, effectively improving operating efficiency, and eliminating the impact of lifting braking. , to ensure the safety, stability and efficiency of the tower crane operation process
1.Smooth lifting function
Solve the key problems: large starting impact; easy slippage when starting and stopping under heavy load; brake pads are easy to wear.
Sine Electric's TC760 series tower crane industry-specific machines have built-in professional brake control logic. The lifting speed is automatically adjusted the moment the goods are lifted, and the hook is lifted smoothly to avoid large and violent swings of the tower crane. The hook does not slip when starting and stopping with load, and the brake is released at low frequency, zero Frequent braking reduces brake pad wear and achieves a high level of control
2.Zero servo function
Solve the key problems: sudden heavy objects fall when the brake fails.
When the brake fails, it can also drive the motor to control full-load hovering or controlled low-speed lowering. It is safe and reliable to use, avoids casualties caused by heavy objects falling, and provides a second level of safety protection for the tower crane.
3.Brake power-on detection function
Solve the key problems: There is no monitoring of brake wear status, and the risk of hook slipping is high when the brake is worn.
The two-stage torque accurately detects the current wear status of the brake, and the fault warning automatically prompts timely maintenance and repair.
4.Load with speed function
Solve the key problems: heavy load operation at full speed has a great impact on the tower body; infinite position detection is easy to reach the top, which poses a great safety hazard.
According to the load weight, the running speed is automatically calculated, taking into account efficiency and safety. The self-learning function of the motor can automatically obtain the motor parameters after power-on, reducing debugging time. The built-in limit detection function prevents accidental top pushing.
5.Rotary anti-sway function
Solve the key problems: The tower crane's big arm has a large inertia when rotating, and it is easy to slip forward and rebound when turning to stop.
Variable frequency vector control technology ensures that the speed does not overshoot during rotation acceleration, and the boom does not slide forward or rebound after shutdown. In case of unexpected power outage, the rotation can be stopped in a controlled manner to prevent collision accidents caused by loss of control of the boom. It supports reverse gear and reduces rotation. Stopping distance ensures operational safety.
6.Variable amplitude anti-sway function
Solve the key problems: large swing swing during forward and backward translation operation of heavy load.
The open-loop control scheme implements the calculation of the main hook swing angle, compensates the output frequency, effectively suppresses the shaking of the main hook when moving forward and backward, and realizes the rapid placement of goods, simple operation, smooth and efficient.
In the future, Sine Electric will continue to use advanced technology, reliable quality, and complete services to meet our customers' control needs for tower cranes and provide high-quality industry solutions!
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