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A lifting electromagnet control method and system thereof

A technology of lifting electromagnet and control method, which is applied in the direction of load hanging components, transportation and packaging, etc., can solve the problems of low voltage and current control precision, high work reliability requirements, large weight and volume, etc., and achieve improved demagnetization and demagnetization efficiency, meet the requirements of high-efficiency operation, and reduce the effect of heat generation

Active Publication Date: 2016-09-28
大连美恒时代科技有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0002] Lifting electromagnet is widely used in metallurgy, mining, machinery, transportation and other industries as a magnetic material for hoisting iron and steel. , and the direction of the current to adjust; at the same time, because the weight and volume of the items lifted by the lifting electromagnet are often relatively large, the requirements for the working reliability of the lifting electromagnet in the field are relatively high; the lifting electromagnet in the prior art Heavy electromagnets have the following problems: single control mode, simple control logic, low precision of voltage and current control, and low work efficiency

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  • A lifting electromagnet control method and system thereof
  • A lifting electromagnet control method and system thereof
  • A lifting electromagnet control method and system thereof

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Embodiment Construction

[0034] Such as figure 1 and figure 2 A lifting electromagnet control method is shown, the coil of the lifting electromagnet 4 is connected to the three-phase power supply through a three-phase thyristor parallel circuit; the thyristor three-phase parallel circuit includes a three-phase thyristor bridge circuit I3 and Three-phase thyristor bridge circuit II2; the control method includes the following steps:

[0035] Step 1: Detect whether the magnetic suction start command is received, if yes, execute step 2, otherwise return to step 1;

[0036] Step 2: Trigger and drive the three-phase thyristor bridge circuit I3 to work in the rectification state according to the magnetic attraction start command, so that the three-phase thyristor bridge circuit I3 continuously outputs the first preset forward direction within the first preset time Voltage to both ends of the coil of the lifting electromagnet 4; the first preset voltage is 80% to 130% of the rated voltage of the lifting el...

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Abstract

The invention discloses a lifting electromagnet control method and system. The control system comprises an operation unit used for receiving user control instructions, a detection unit, a timing unit, a drive unit connected with a three-phase thyristor bridge type circuit I and a three-phase thyristor bridge type circuit II, and a control unit connected with the detection unit, the timing unit and the drive unit, wherein the detection unit comprises a voltage detection unit used for detecting the voltages at the two ends of the coil of a lifting electromagnet, and an instruction detection unit used for detecting whether the user control instructions are received or not; the instruction detection unit is connected with the operation unit. According to the lifting electromagnet control method and system, the effects of high efficiency, durability and energy conservation can be achieved, the use efficiency of the lifting electromagnet is improved, and the efficient field operation requirements of the lifting electromagnet can be met.

Description

technical field [0001] The invention relates to a lifting electromagnet control method and system thereof. Background technique [0002] Lifting electromagnet is widely used in metallurgy, mining, machinery, transportation and other industries as a magnetic material for hoisting iron and steel. , and the direction of the current to adjust; at the same time, because the weight and volume of the items lifted by the lifting electromagnet are often relatively large, the requirements for the working reliability of the lifting electromagnet in the field are relatively high; the lifting electromagnet in the prior art Heavy electromagnets have the following problems: single control mode, simple control logic, low precision of voltage and current control, and low work efficiency. Contents of the invention [0003] In view of the above problems, the present invention develops a lifting electromagnet control method and system thereof. [0004] Technical means of the present inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C1/08
CPCB66C1/08
Inventor 祝庆军郜振中
Owner 大连美恒时代科技有限公司
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