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Disc brake braking circuit that can eliminate power-off residual magnetism delay

A technology of disc brakes and brake circuits, which is applied in the direction of electric motor/converter plugs, DC motor deceleration devices, etc., can solve the problems of safety hazards such as counterweight boxes, components that are easy to burn out, and damage to control equipment. Effects of remanence, improvement of stability and safety, and overcoming hysteresis

Active Publication Date: 2018-06-01
苏州航天林泉电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when the pumping unit is mounted, the counterweight end is lifted unilaterally, and the delayed braking causes the counterweight to fall, which brings safety hazards and damage to the counterweight box to the staff near the pumping unit equipment; The rod end and the counterweight end slide down on the heavier side, which is easy to burn out the components of the control equipment, etc.

Method used

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  • Disc brake braking circuit that can eliminate power-off residual magnetism delay

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Embodiment

[0015] This embodiment describes a disc brake braking circuit that can eliminate the power-off residual magnetism delay, including a power supply circuit, a rectification voltage divider circuit, an electromagnetic starting circuit, a demagnetization circuit and a brake. The output voltage of the power supply circuit is passed through The rectifying and dividing circuit (in this embodiment, half-wave rectifying and dividing circuit is used to obtain the required voltage in the high-voltage output part, and the required voltage is obtained in the low-voltage part by using transformer transformation combined with full-wave rectification) and transformer transformation Output two DC voltages after rectification, the two DC voltages are sent to the electromagnetic starting circuit, the high-voltage output of the electromagnetic starting circuit is connected to the brake to start and open the brake, and the low-voltage output is used to maintain the opening of the starter state, whe...

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PUM

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Abstract

The invention discloses a disc brake braking circuit capable of eliminating power-off residual magnetism delay, including a power supply circuit, a rectification and voltage dividing circuit, an electromagnetic starting circuit, a demagnetization circuit and a brake, wherein the demagnetization circuit includes a first Two AC contactors and capacitors. After the circuit is connected to the contacts of the AC contactor, it is then reversely connected to the positive and negative poles of the input end of the brake. In the present invention, when the power is turned on, the capacitor continues to charge, and after the power is lost, because the output of the capacitor is opposite to the positive and negative poles of the brake, in this way, the capacitor outputs a voltage when the power is suddenly lost, so that the DC electromagnet in the brake If the current is offset, the residual magnetism in the brake can be eliminated immediately, the hysteresis phenomenon can be overcome, the brake can brake quickly, and the stability and safety of equipment operation can be improved.

Description

technical field [0001] The invention relates to a disc brake braking circuit capable of eliminating power-off residual magnetism delay. Background technique [0002] When the disc type power failure protection brake brakes when the power is lost, the DC electromagnet has hysteresis, and the brake lags behind. The disc brake is used as the braking device of the pumping unit, and the delayed braking may cause safety accidents. For example, when the pumping unit is mounted, the counterweight end is lifted unilaterally, and the delayed braking causes the counterweight to fall, which brings safety hazards and damage to the counterweight box to the staff near the pumping unit equipment; The rod end and the counterweight end slide down on the heavier side, which is easy to burn out the components of the control equipment. [0003] In order to solve the above problems, the reaction time of disc brakes is eliminated, and the reverse voltage is applied after the brakes are powered o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P3/08
Inventor 蒋昕朱燕青杜克峰范小刚
Owner 苏州航天林泉电机有限公司
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