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Step motor driving output device with step miss prevention

A stepper motor, drive output technology, applied in the direction of electromechanical devices, electrical components, mechanical equipment, etc., can solve the problems of limited driving torque, lost driving steps, and excessive resistance torque, etc., to reduce application occasions, reduce costs, and expand Application-wide effects

Inactive Publication Date: 2008-08-06
周文华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the maximum driving torque of the stepper motor is limited, and exceeding the maximum value may cause the drive to lose steps
In specific applications, the controlled object may be subjected to instantaneous resistance during motion, causing the resistance torque to exceed the drive torque of the stepper motor.

Method used

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  • Step motor driving output device with step miss prevention

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Embodiment Construction

[0011] The present invention will be described in detail below according to the accompanying drawings and specific embodiments.

[0012] As shown in the figure, the present invention discloses a stepper motor drive output device with anti-lost steps. The stepper motor 1 has a stepper motor output shaft 6. The device includes a rocker mechanism, a limit mechanism, and an elastic energy storage element. 7 and eccentric pin 8; wherein the rocker mechanism includes a rocker 9 connected to the stepper motor output shaft 6, a roller pin 4 and a roller 5, one end of the rocker 9 is connected to the roller pin 4, and the roller 5 is sleeved on the roller pin 4 outside; the limit mechanism includes a limit baffle 3 connected with the stepper motor output shaft 6 and a limit screw 2; one end of the eccentric pin 8 is connected with the limit baffle 3, and the other end is connected with the rocker arm 9; The elastic energy storage component 7 is installed on the output shaft 6 of the st...

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PUM

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Abstract

The invention discloses a step motor driving output device with losing-step prevention function, comprising a step motor, a rocker gear, a spacing mechanism, an elastic energy storage element and an eccentric pin. In the step motor driving equipment, the step motor driving output device is sued to transfer the output torque of an output shaft of the step motor to a controlled object; when the invention is normally used, the device is equivalent to a rigid lever mechanism; when the external resistance moment is larger than the driving moment of the step motor for an instant, the device can store the output of the step motor in an energy storage component in the mode of potential energy; after the external resistance moment disappears, the stored energy is released, and the controlled object is driven on the right target position, thereby avoiding the losing-step phenomenon of the step motor from happening.

Description

technical field [0001] The invention relates to a drive output device, in particular to a stepper motor drive output device with anti-lost steps. Background technique [0002] In the field of position control, stepper motors have unique advantages, such as being used in diesel engine oil pump oil volume control mechanisms, throttle control devices, and other position control applications driven by stepper motors. However, the maximum driving torque of the stepper motor is limited, and exceeding the maximum value may cause the drive to lose steps. In specific application occasions, the controlled object may be subjected to instantaneous resistance during motion, causing the resistance torque to exceed the drive torque of the stepper motor. For example, in the control of the oil quantity control mechanism of the diesel engine oil pump, the cam-driven in-line pump, distribution pump and other equipment work in the state of alternating stress. Instantaneous resistance, if the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K37/24F16D3/02
Inventor 周文华
Owner 周文华
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