CN103259465A - Method for enabling servo driver control motor to have function of one-way bearing - Google Patents
Method for enabling servo driver control motor to have function of one-way bearing Download PDFInfo
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- CN103259465A CN103259465A CN2012100347272A CN201210034727A CN103259465A CN 103259465 A CN103259465 A CN 103259465A CN 2012100347272 A CN2012100347272 A CN 2012100347272A CN 201210034727 A CN201210034727 A CN 201210034727A CN 103259465 A CN103259465 A CN 103259465A
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Abstract
The invention discloses a method for enabling a servo driver control motor to have a function of a one-way bearing. A motor control mode is set to be one-way rotation, and the condition that a rotating direction is a clockwise direction or an anti-clockwise direction is judged; a servo driver of an upper computer is used for switching a stationary state and a moving state of a motor; in the stationary state, the servo driver excites the motor to conduct excitation, electromagnetic torque of the motor is zero in a forward direction, the motor can rotate in the forward direction, rotating speed of the motor is kept zero in a backward direction, and the motor can not rotate in the backward direction; in the moving state, the servo driver excites the motor to conduct excitation, the upper computer presets the torque and the rotating speed of the motor in the forward direction, the servo driver controls the motor to rotate in the forward direction, the rotating speed of the motor is always kept zero in the backward direction, the motor can not rotate in the backward direction under any condition until the servo driver changes the motor control mode. According to the method for enabling the servo driver control motor to have the function of the one-way bearing, the motor has the function of the one-way bearing without installing the one-way bearing, and therefore manufacturing and maintenance cost of the motor are effectively reduced, and operating accuracy of a device is guaranteed.
Description
Technical field
The present invention relates to the method that a kind of servo-driver control motor has the unilateral bearing function.
Background technology
Unilateral bearing is widely used in the plant equipment motor in fields such as iron and steel, mine, weaving, tobacco and fine chemistry industry, and unilateral bearing is can freely to rotate in one direction, and on another direction locked a kind of bearing.Usually be provided with a lot of roller bearings, needle roller or balls in the metal shell of unilateral bearing, and its shape of rolling seat it can only be rolled to a direction, and very big resistance can be produced in another direction, namely so-called unidirectional.
Actual unilateral bearing has many shortcomings, and little as shaft strength, bearing weares and teares easily, the mounting or dismounting trouble, and inconvenience is changed, and the unavoidable mechanical clearance of unilateral bearing influences the precision of equipment operation; And motor high-speed cruising noise is big, seal to bearing under adverse circumstances such as moisture, dust, soda acid has higher requirement, though the easy corrosion of unilateral bearing like this, and need to add lubricant always, with the reduction coefficient of friction, thus the frictional resistance of minimizing bearing.
Adopt at present the operation of servo-driver control motor to be widely used in the various kinds of equipment, servo drive motor when inactive state, i.e. the motor excitation of not switching on, motor is not controlled, motor can rotate arbitrarily; And servo-driver exciting electric excitation when energising, the motor both forward and reverse directions has very big electromagnetic force, and motor is in locking state; When the motor movement state, motor can produce certain torque and rotating speed at both forward and reverse directions, and motor is in slave mode.When needing motor to need unidirectional rotation owing to the equipment operation, then need at motor shaft unilateral bearing is installed, increased motor cost and maintenance cost thus, and there has been certain influence in the equipment running precision.
Summary of the invention
Technical problem to be solved by this invention provides the method that a kind of servo-driver control motor has the unilateral bearing function, utilizing this method to need not to install unilateral bearing can make motor have the function of unilateral bearing, effectively reduce motor manufacturing cost and maintenance cost, guaranteed the running precision of equipment.
For solving the problems of the technologies described above, the method that servo-driver control motor of the present invention has the unilateral bearing function comprises the steps:
Step 1, utilize servo-driver external torque limitation function and counter-rotating stroke limit function, arrange by the servo-driver parameter, the motor outside square limiting parameter of just walking around is set to 0nm, the input of counter-rotating stroke limit signal is effective all the time, make the control model of servo controller be the rotation of motor positive direction, locking in the other direction, and provide the motor positive direction and rotate to be clockwise direction signal or signal counterclockwise;
Step 2, host computer output motor rotation status command signal are to servo-driver, the switching of servo-driver control motor inactive state and motion state, open the external torque limitation function under the inactive state, close the external torque limitation function under the motion state, the input of counter-rotating stroke limit signal is effective all the time under inactive state and the motion state;
Step 3, under the motor inactive state, the servo-driver outside square limitation function of just walking around is effective, servo-driver exciting electric excitation, the square limiting parameter is set to 0nm because motor is just being walked around on positive direction, so electromagnetic torque is zero, apply external force in the motor positive direction this moment, motor can rotate to positive direction, because the input of counter-rotating stroke limit signal effectively, it is zero that servo-driver keeps rotating speed in the other direction at motor, torque is that the nominal torque of motor multiply by its overload magnification, and in the other direction produce very big electromagnetism locked resistance at motor this moment, and motor can't rotate in the other direction;
Step 4, under the motor movement state, because the external torque limitation function is invalid, servo-driver exciting electric excitation, motor can have torque output in positive direction, the given motor of host computer is in the torque of positive direction, rotating speed, and through the rotation of servo-driver control motor positive direction, realize the machine driving requirement, the input of the stroke limit of servo-driver counter-rotating simultaneously signal effectively, remaining rotating speed in the other direction at motor is zero, and torque is that the nominal torque of motor multiply by its overload magnification, and motor still produces the very big locked resistance of electromagnetism in the other direction, motor under any circumstance all can't rotate in the other direction, changes the Electric Machine Control pattern until servo-driver.
Because the method that servo-driver control motor of the present invention has the unilateral bearing function has adopted technique scheme, namely utilize the original external torque limitation function of servo-driver and counter-rotating stroke limit function, set servo-driver Electric Machine Control pattern and be the rotation of motor positive direction, locking in the other direction, and provide positive direction and rotate to be clockwise direction signal or signal counterclockwise; By the host computer servo-driver motor inactive state and motion state are switched; Under the inactive state, servo-driver exciting electric excitation, making motor electromagnetic torque on positive direction is zero, and motor can positive direction rotate, and it is zero that servo-driver keeps rotating speed in the other direction at motor, and motor can't rotate in the other direction; Under the motion state, servo-driver exciting electric excitation, the given motor of host computer is at torque, the rotating speed of positive direction, the rotation of servo-driver control motor positive direction, realize the machine driving requirement, it is zero that the while servo-driver remains rotating speed in the other direction at motor, and motor under any circumstance all can't rotate in the other direction, changes the Electric Machine Control pattern until servo-driver.This method need not to install unilateral bearing can make motor have the function of unilateral bearing, effectively reduces motor manufacturing cost and maintenance cost, has guaranteed the running precision of equipment.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the theory diagram of this method;
Fig. 2 is the principle schematic of servo-driver control motor operation.
Embodiment
As depicted in figs. 1 and 2, the method for servo-driver of the present invention control motor with unilateral bearing function comprises the steps:
Step 1, utilize the original external torque limitation function of servo-driver and counter-rotating stroke limit function, by servo-driver 1 parameter setting, the motor outside square limiting parameter of just walking around is set to 0nm(ox * rice); The input of counter-rotating stroke limit signal is effective all the time, and the control model that makes servo controller 1 is the rotation of motor 2 positive directions, locking in the other direction, and provides motor 2 positive directions and rotate to be clockwise direction signal or signal counterclockwise;
Step 2, host computer output motor 2 rotation status command signals are to servo-driver 1, and servo-driver 1 is controlled the switching of motor 2 inactive states and motion state; Open the external torque limitation function under the inactive state, close the external torque limitation function under the motion state; The input of counter-rotating stroke limit signal is effective all the time under inactive state and the motion state;
Step 3, under motor 2 inactive states, the driver outside square limitation function of just walking around is effective, servo-driver 1 exciting electric 2 excitations, the square limiting parameter is set to 0nm(ox * rice because motor 2 is just being walked around on positive direction), so electromagnetic torque is zero, apply external force in motor 2 positive directions this moment, motor 2 can rotate to positive direction, because the input of counter-rotating stroke limit signal effectively, it is zero that servo-driver 1 keeps rotating speed in the other direction at motor 2, torque is that the nominal torque of motor multiply by its overload magnification, and in the other direction produce very big electromagnetism locked resistance at motor 2 this moment, and motor 2 can't rotate in the other direction; Servo-driver 1 is by the position signalling of motor position sensor 3 feedback motors 1, in case motor position sensor 3 detects motor 2 when reversal trend is arranged, be that motor position sensor 3 detects 2 in motor trickle counter-rotating is arranged, servo-driver 1 drive motors 2 produces the moment of reaction, to offset motor 2 torque reactions, guarantee that motor 2 does not produce counter-rotating.
Step 4, under motor 2 motion states, because the external torque limitation function is invalid, servo-driver 1 exciting electric 2 excitations, motor 2 can be exported torque on positive direction, the given motor 2 of host computer is in the torque of positive direction, rotating speed, and through the rotation of servo-driver 1 control motor 2 positive directions, realize the machine driving requirement, simultaneously because the input of counter-rotating stroke limit signal is effective all the time, it is zero that servo-driver 1 remains rotating speed in the other direction at motor 2, torque is that the nominal torque of motor multiply by its overload magnification, motor 2 still produces the very big locked resistance of electromagnetism in the other direction, motor 2 under any circumstance all can't rotate in the other direction, changes motor 2 control models until servo-driver 1.Servo-driver 1 under motor 2 unidirectional rotation control models, even receive motor 2 reverse signals, after control program is judged, shields this reverse signal by the control program setting automatically, does not make motor 2 reverse drive.In the practical application, when reasons such as host computer fault, holding wire wiring error cause servo-driver 1 to receive reverse signal, servo-driver 1 is judged through control program, shields this reverse signal equally automatically, not carrying out the counter-rotating instruction.When detecting 2 in motor trickle reversal trend arranged by motor position sensor 3 as servo-driver 1, control program increases the PWM pulsewidth of servo-driver 1 and the turn-on frequency of inverter switching device pipe, thereby make motor 2 produce bigger forward torque, forbid motor 2 counter-rotatings.
This method realizes the function of unilateral bearing by servo-driver control motor one-directional rotation, need not at motor shaft unilateral bearing to be set, saved the manufacturing cost of motor, reduce component of machine quantity, reduce system failure rate, be convenient to the maintenance of motor and improve machinery check and repair efficient; And the locked resistance of motor on another direction provided by electromagnetic torque, is not to provide locked resistance by machinery, avoided mechanical wear, need not to provide lubricant, and has bigger holding capacity, the high-speed cruising noiselessness.Can embedded der Geschwindigkeitkreis in the control system of servo-driver, the electric current loop double circle controling mode makes motor positioning accuracy standard, the control precision height, response speed is fast, operates steadily, and improves the precision of motor driven systems.
Claims (1)
1. a servo-driver is controlled the method that motor has the unilateral bearing function, it is characterized in that this method comprises the steps:
Step 1, utilize servo-driver external torque limitation function and counter-rotating stroke limit function, arrange by the servo-driver parameter, the motor outside square limiting parameter of just walking around is set to 0nm, the input of counter-rotating stroke limit signal is effective all the time, make the control model of servo controller be the rotation of motor positive direction, locking in the other direction, and provide the motor positive direction and rotate to be clockwise direction signal or signal counterclockwise;
Step 2, host computer output motor rotation status command signal are to servo-driver, the switching of servo-driver control motor inactive state and motion state, open the external torque limitation function under the inactive state, close the external torque limitation function under the motion state, the input of counter-rotating stroke limit signal is effective all the time under inactive state and the motion state;
Step 3, under the motor inactive state, the servo-driver outside square limitation function of just walking around is effective, servo-driver exciting electric excitation, the square limiting parameter is set to 0nm because motor is just being walked around on positive direction, so electromagnetic torque is zero, apply external force in the motor positive direction this moment, motor can rotate to positive direction, because the input of counter-rotating stroke limit signal effectively, it is zero that servo-driver keeps rotating speed in the other direction at motor, torque is that the nominal torque of motor multiply by its overload magnification, and in the other direction produce very big electromagnetism locked resistance at motor this moment, and motor can't rotate in the other direction;
Step 4, under the motor movement state, because the external torque limitation function is invalid, servo-driver exciting electric excitation, motor can have torque output in positive direction, the given motor of host computer is in the torque of positive direction, rotating speed, and through the rotation of servo-driver control motor positive direction, realize the machine driving requirement, the input of the stroke limit of servo-driver counter-rotating simultaneously signal effectively, remaining rotating speed in the other direction at motor is zero, and torque is that the nominal torque of motor multiply by its overload magnification, and motor still produces the very big locked resistance of electromagnetism in the other direction, motor under any circumstance all can't rotate in the other direction, changes the Electric Machine Control pattern until servo-driver.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210034727.2A CN103259465B (en) | 2012-02-16 | 2012-02-16 | Servo-driver controls the method that motor has unilateral bearing function |
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| CN201210034727.2A CN103259465B (en) | 2012-02-16 | 2012-02-16 | Servo-driver controls the method that motor has unilateral bearing function |
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| CN103259465A true CN103259465A (en) | 2013-08-21 |
| CN103259465B CN103259465B (en) | 2016-02-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008300A (en) * | 2017-12-29 | 2018-05-08 | 深圳市踢踢电子有限公司 | A kind of detection device for being used for the micromachine with welding lead |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1629508A (en) * | 2003-09-09 | 2005-06-22 | 王国斌 | Stepless tooth engagement control type high efficiency and high power clutch |
| CN101280835A (en) * | 2007-04-05 | 2008-10-08 | 张惠东 | Chain-drive mechanism with adjustable virtual teeth number and automatic speed variator using the same |
| CN202214087U (en) * | 2011-08-24 | 2012-05-09 | 西安启源机电装备股份有限公司 | Multiaxial tension control wire-withdrawable wire laying rack |
| US8602933B2 (en) * | 2009-07-31 | 2013-12-10 | Nippon Soken, Inc. | Power transmission device and power transmission system |
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2012
- 2012-02-16 CN CN201210034727.2A patent/CN103259465B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629508A (en) * | 2003-09-09 | 2005-06-22 | 王国斌 | Stepless tooth engagement control type high efficiency and high power clutch |
| CN101280835A (en) * | 2007-04-05 | 2008-10-08 | 张惠东 | Chain-drive mechanism with adjustable virtual teeth number and automatic speed variator using the same |
| US8602933B2 (en) * | 2009-07-31 | 2013-12-10 | Nippon Soken, Inc. | Power transmission device and power transmission system |
| CN202214087U (en) * | 2011-08-24 | 2012-05-09 | 西安启源机电装备股份有限公司 | Multiaxial tension control wire-withdrawable wire laying rack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008300A (en) * | 2017-12-29 | 2018-05-08 | 深圳市踢踢电子有限公司 | A kind of detection device for being used for the micromachine with welding lead |
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Granted publication date: 20160217 Termination date: 20200216 |