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A system for increasing the positioning torque of stepper motors

A stepping motor, positioning torque technology, applied in the control system, motor generator control, electrical components, etc., can solve the problems of uncontinuous power supply, poor sealing, inaccurate positioning, etc., to ensure air tightness and reliable operation. , the effect of low cost

Active Publication Date: 2018-09-04
四川长虹技佳精工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the intelligent liquid goods vending terminal with the function of piercing and docking pipelines on the market uses a stepping motor driver to drive multiple stepping motors step by step in order to reduce costs. The stepping motor driver drives the stepping motor to drive the piercing and docking mechanism. Movement, the puncture butt joint pipeline is disconnected immediately after completion, and the power supply cannot be sustained, and the positioning torque is strengthened by using the holding torque
In addition, due to the rebound force of the sealing material, the docking interface rebounds, the stepping motor reverses, and the puncture docking mechanism moves up, which eventually leads to inaccurate positioning and poor sealing

Method used

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  • A system for increasing the positioning torque of stepper motors
  • A system for increasing the positioning torque of stepper motors

Examples

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Effect test

Embodiment Construction

[0016] The following takes a two-phase four-wire stepping motor as an example for description.

[0017] This embodiment is applied to an intelligent liquid goods vending terminal. One stepper motor driver drives two (not limited to two, but more) stepper motors respectively, and the stepper motor driver drives the stepper motor to drive the puncture docking mechanism to move , Disconnect immediately after the puncture butt joint line is completed. Specifically, as figure 1 As shown, this embodiment includes an ARM Cortex-M series microcontroller, a stepper motor driver, a relay selection module, a stepper motor and a limit sensor.

[0018] Wherein, the limit sensor is arranged on the piercing and docking mechanism, and is used to feedback whether the piercing and docking mechanism has returned to the starting position, and feeds back the signal to the single-chip microcomputer. The single-chip microcomputer controls the stepper motor driver to drive the start and stop, and c...

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Abstract

The invention relates to electromechanical control and provides a system capable of increasing a positioning torque of a stepper motor. The sealing requirements are finished by increasing the positioning torque. The system comprises a control unit, a drive unit, a relay selection module and the stepper motor, wherein the control unit is connected with the drive unit and the relay selection module; the relay selection module is connected with the drive unit and the stepper motor; the control unit controls starting and stopping of the stepper motor and shorting of a drive wire by controlling the relay selection module to be opened and closed; and when the drive wire of the stepper motor is shorted, a coil of the stepper motor forms counter electromotive force, generates rotating resistance and increases the positioning torque by controlling the relay selection module to form a loop. The system is suitable for intelligent liquid goods sale terminals.

Description

technical field [0001] The invention relates to electromechanical control, in particular to a system for increasing the positioning torque of a stepping motor. Background technique [0002] At present, the intelligent liquid goods vending terminal with the function of piercing and docking pipelines on the market uses a stepping motor driver to drive multiple stepping motors step by step in order to reduce costs. The stepping motor driver drives the stepping motor to drive the piercing and docking mechanism. Movement, the puncture butt joint pipeline is disconnected immediately after completion, and the power supply cannot be continued, so the positioning torque is strengthened by the holding torque. In addition, due to the rebound force of the sealing material, the docking interface rebounds, the stepping motor reverses, and the puncture docking mechanism moves up, which eventually leads to inaccurate positioning and poor sealing. After replacing the structure and sealing m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P8/14H02P8/40
CPCH02P8/14H02P8/40
Inventor 丁宏杨建顾尚林
Owner 四川长虹技佳精工有限公司
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