Low-cost rotation control system for tower crane, and control method
A control system, low-cost technology, applied in the direction of cranes, load suspension components, safety devices, etc., can solve the problems of increased production cost of the overall control system, prone to safety accidents, high production costs, etc., to reduce the overall cost and improve stability Sexuality and the effect of prolonging the service life
Pending Publication Date: 2021-11-16
浙江一通电子科技有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] The slewing mechanism of the tower crane is suitable for driving heavy objects to rotate. If the control is not accurate, it is easy to shake and cause safety accidents. At present, the slewing control system commonly used in tower cranes mostly uses eddy current controllers for auxiliary speed regulation. , but the motor that needs to be equipped with the eddy current controller needs to be a torque motor, and it needs to be equipped with an independent cooling device for the torque motor, which leads to an increase in the production cost of the overall control system
Therefore, the existing tower crane slewing control system has the problem of high production cost
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.
[0016] Example. A low-cost slewing control system for tower cranes, which consists of Figures 1 to 3 As shown, including the control center (1), the control center (1) is electrically connected to the frequency converter (2), the power failure detection module and the linkage platform (3); the linkage platform (3) and the control center (1) A first signal line (4) and a second signal line (5) arranged in parallel with each other are connected, and an interlock device is arranged between the first signal line (4) and the second signal line (5); the frequency converter (2) The slewing mechanism (6) is electrically connected; the slewing mechanism (6) is electrically connected to a motor speed sensor (8), and the output end of the motor speed sensor (8) is electrically connected to the control center...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a low-cost rotation control system for a tower crane. The low-cost rotation control system for the tower crane comprises a control center, wherein a frequency converter, a power loss detection module and a linkage table are electrically connected onto the control center; a first signal line, a second signal line and an interlocking device are connected between the linkage table and the control center; a slewing mechanism is electrically connected onto the frequency converter; and a motor rotating speed sensor is electrically connected onto the slewing mechanism. According to the control method constructed by the control system, the first signal line or the second signal line sends a potential signal or a gear signal sent by the linkage table to the control center, the control center controls the frequency converter to start according to the received potential signal or gear signal, and the frequency converter is used for changing the output frequency, voltage and speed of the slewing mechanism. According to the low-cost rotation control system for the tower crane, and the control method provided by the invention, the production cost can be reduced, and the device also has the advantages of high use stability, high use safety, long service life, wide application range, simple structure and high reliability.
Description
technical field [0001] The invention relates to a control system and a control method for a tower crane, in particular to a low-cost slewing control system and a control method for a tower crane. Background technique [0002] The slewing mechanism of the tower crane is suitable for driving heavy objects to rotate. If the control is not accurate, it is easy to shake and cause safety accidents. At present, the slewing control system commonly used in tower cranes mostly uses eddy current controllers for auxiliary speed regulation. , but the motor that needs to be equipped with the eddy current controller needs to be a torque motor, and it needs to be equipped with an independent cooling device for the torque motor, which leads to an increase in the production cost of the overall control system. Therefore, the existing tower crane slewing control system has the problem of high production cost. Contents of the invention [0003] The object of the present invention is to provid...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B66C23/84B66C13/30B66C13/48B66C15/00
CPCB66C23/84B66C13/30B66C13/48B66C15/00
Inventor 程江龙范俊红方建飞陈江南叶志云应旦昊
Owner 浙江一通电子科技有限公司