CN207717268U - Detection device for measuring servo motor moment of friction - Google Patents
Detection device for measuring servo motor moment of friction Download PDFInfo
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- CN207717268U CN207717268U CN201721752801.9U CN201721752801U CN207717268U CN 207717268 U CN207717268 U CN 207717268U CN 201721752801 U CN201721752801 U CN 201721752801U CN 207717268 U CN207717268 U CN 207717268U
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- servo motor
- detection device
- drawstring
- force snesor
- power component
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Abstract
The utility model discloses a kind of detection device for measuring servo motor moment of friction, which includes：Holder, holder is for fixing servo motor；Force snesor, force snesor include signal output line；Drawstring and Power Component, Power Component is connected by the first end of drawstring and force snesor, the second end of force snesor is connected by the shaft of drawstring and servo motor, and force snesor exports the electric signal of characterization value of thrust by signal output line when by the pulling force of drawstring.The Power Component of the utility model pulls machine shaft rotation by drawstring, and the electric signal of characterization value of thrust is exported by the signal output line of force snesor, improves the repeatability of operation and detects the precision of servo motor moment of friction.
Description
Technical field
The utility model is related to detection fields, more particularly to the detection device for measuring servo motor moment of friction.
Background technology
Maximum static friction torque is to evaluate an important indicator of permanent-magnet alternating current servo motor quality, is to influence servo motor
One important parameter of control accuracy is that servo motor is made to generate loss, influence an important factor for electric efficiency.Accurately measure
Moment of friction is conducive to improve the design of permanent-magnet alternating current servo motor, to improve its control accuracy, reduces energy consumption.Currently, measuring
The method of permanent-magnet alternating current servo motor maximum static friction torque includes mainly electronic scale method and torque disk-counterweight method.
But electronic scale method is missed by the result that different personnel operate by the manual direct pull shaft rotation of operating personnel
Difference is relatively large, the poor repeatability of personnel's operation.Torque disk-counterweight method, which needs to calculate, should hang counterweight size, according to machine shaft
Whether block and judge whether maximum static friction torque is qualified, this method cannot obtain accurate maximum static friction torque value.
Invention content
The utility model is mainly solving the technical problems that provide a kind of detection for measuring servo motor moment of friction
Device, realization lifts drawstring manually without personnel makes the shaft of servo motor rotate, and can obtain accurate moment of friction.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is to provide a kind of for measuring servo electricity
The detection device of machine moment of friction, the detection device include：Holder, holder is for fixing servo motor；Force snesor, power sensing
Device includes signal output line；Drawstring and Power Component, Power Component are connected by the first end of drawstring and force snesor, power sensing
The second end of device is connected by the shaft of drawstring and servo motor, and force snesor is defeated by signal when by the pulling force of drawstring
The electric signal of outlet output characterization value of thrust.
The utility model has the beneficial effects that：The Power Component of the case where being different from the prior art, the utility model passes through
The first end of drawstring and force snesor connects, and the second end of force snesor is connected by the shaft of drawstring and servo motor, and power passes
Sensor exports the electric signal of characterization value of thrust by signal output line when by the pulling force of drawstring.In this way, Power Component passes through
Drawstring pulls machine shaft rotation, and the electric signal of characterization value of thrust is exported by the signal output line of force snesor, and then realizes
Lifting drawstring manually without personnel makes the shaft of servo motor rotate, and the repeatability and detection servo motor that can improve operation are rubbed
Wipe the precision of torque.
Description of the drawings
Fig. 1 is the structure provided by the utility model for measuring servo motor moment of friction detection device first embodiment
Schematic diagram；
Fig. 2 is the principle provided by the utility model for measuring servo motor moment of friction detection device second embodiment
Schematic diagram；
Fig. 3 is the principle provided by the utility model for measuring servo motor moment of friction detection device 3rd embodiment
Schematic diagram.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained belongs to the range of the utility model protection.
In order to be accurately obtained the moment of friction of servo motor, Power Component passes through drawing in the detection device of the utility model
Rope pulls machine shaft rotation, and the electric signal of characterization value of thrust is exported by the signal output line of force snesor.Hereinafter, specifically
The detailed process of bright the utility model detection device detection servo motor moment of friction.
Fig. 1 is the structure provided by the utility model for measuring servo motor moment of friction detection device first embodiment
Schematic diagram.Detection device includes：Fixed pulley 101, force snesor 102, Power Component 103, digital display meter 104, holder 105, drawstring
106, signal output line 107.Wherein, servo motor 108 and fixed pulley 101 to be measured are fixed on holder 105, and fixed pulley 101
It is fixed on the top of holder 105, can adjust fixed pulley 101 when measuring the moment of friction of servo motor of different size is propping up
Position on frame 105.Power Component 103 is connect by drawstring 106 with the first end of force snesor 102, and the of force snesor 102
Two ends are connect by drawstring 106 with the shaft 1081 of servo motor 108 to be detected.Force snesor 102 is provided with signal output line
107, signal output line 107 is electrically connected with digital display meter 104, and force snesor 102 is exported when by the pulling force of drawstring by signal
The electric signal of the output characterization value of thrust of line 107, digital display meter 104 are used to receive the electric signal of characterization value of thrust and show the pulling force
Value.In other specific implementation modes, the signal output line 107 of force snesor 102 can also be via amplifier and computing device
Electrical connection, can accurately be calculated and be shown moment of friction along the change curve of 1081 circumference of shaft by computing device, be conducive to
Subsequent data analysis.In a specific embodiment, computing device is computer.
In the present embodiment, force snesor 102 includes force sensing element, conversion element and circuit element, and force sensing element will obtain
Value of thrust electric signal is converted to by conversion element, and the electric signal transmission of value of thrust will be characterized to signal by circuit element
Output line 107.
Further, Power Component 103 is connect by drawstring 106 and fixed pulley 101 with the first end of force snesor 102,
The drawstring 106 being connect with 102 second end of force snesor is wrapped in the shaft 1081 of servo motor 108, can ensure to make shaft
The direction of 1081 rotations pulling force used is consistent with the tangential acceleration direction of shaft 1081, and then improves the repeatability and essence of detection
True property.
Further, Power Component 103 is hand wheel component, and Power Component 103 provides pulling force by drawstring 106, by drawing
Rope 106 drives shaft 1081 to rotate, and in other specific implementation modes, Power Component 103 or motor do not do have herein
Body limits.
In the present embodiment, servo motor 108 is permanent-magnet alternating current servo motor, and servo motor 108 and fixed pulley 101 to be measured are solid
Being scheduled on holder 105 in other embodiments can be fixed on servo motor 108 to be measured for a specific embodiment
On holder 105, fixed pulley 101 is fixed on another holder.In the present embodiment, the value of thrust shown on digital display meter 104 is multiplied by
The radius of shaft 1081 obtains the moment of friction of servo motor 108.Specifically, overcome when shaft 1081 will just rotate
Moment of friction is the static friction torque of servo motor 108, and the moment of friction overcome when 1081 uniform rotation of shaft is servo
The dynamic friction torque of motor 108.
The Power Component of the utility model is connected by the first end of drawstring and force snesor, and the second end of force snesor is logical
The shaft for crossing drawstring and servo motor connects, and force snesor is exported by signal output line and characterized when by the pulling force of drawstring
The electric signal of value of thrust.In this way, Power Component pulls machine shaft to rotate by drawstring, and by the signal output line of force snesor
The electric signal of output characterization value of thrust, and then realize that lifting drawstring manually without personnel makes the shaft of servo motor rotate, it can
It improves the repeatability of operation and detects the precision of servo motor moment of friction.
Referring to Fig. 2, Fig. 2 is provided by the utility model real for measuring servo motor moment of friction detection device second
The principle schematic of example is applied, detection device includes：Fixed pulley 201, Power Component 203, digital display meter 204, is drawn force snesor 202
Rope 205, signal output line 206, holder 208.Wherein, servo motor and fixed pulley 201 to be measured is fixed on holder 208, and fixed
Pulley 201 is fixed on the top of holder 208, and fixed pulley can be adjusted when measuring the moment of friction of servo motor of different size
201 position on holder 208.Power Component 203 is connect by drawstring 205 with the first end of force snesor 202, force snesor
202 second end is connect by drawstring 205 with the shaft 207 of servo motor to be detected.Force snesor 202 is provided with signal output
Line 206, signal output line 206 are electrically connected with digital display meter 204, and force snesor 202 is defeated by signal when by the pulling force of drawstring
The electric signal of the output characterization value of thrust of outlet 206, digital display meter 204 are used to receive the electric signal of characterization value of thrust and show the pulling force
Value.In other specific implementation modes, the signal output line 206 of force snesor 202 can also be via amplifier and computing device
Electrical connection, can accurately be calculated and be shown change curve of the moment of friction along 207 circumference of shaft, after being conducive to by computing device
Continuous data analysis.In a specific embodiment, computing device is computer.
In the present embodiment, force snesor 202 includes force sensing element, conversion element and circuit element, and force sensing element will obtain
Value of thrust electric signal is converted to by conversion element, and the electric signal transmission of value of thrust will be characterized to signal by circuit element
Output line 206.
Further, Power Component 203 is connect by drawstring 205 and fixed pulley 201 with the first end of force snesor 202,
The drawstring 205 being connect with 202 second end of force snesor is wrapped in the shaft 207 of servo motor, can ensure to make 207 turns of shaft
The direction of dynamic pulling force used is consistent with the tangential acceleration direction of shaft 207, and then improves the repeatability and accuracy of detection.
Further, Power Component 203 is hand wheel component, and Power Component 203 provides pulling force by drawstring 205, by drawing
Rope 205 drives shaft 207 to rotate, and in other specific implementation modes, Power Component 203 or motor do not do have herein
Body limits.
In the present embodiment, servo motor is permanent-magnet alternating current servo motor, and servo motor and fixed pulley 201 to be measured is fixed on branch
Servo motor to be measured can be fixed on holder 208 in other embodiments for a specific embodiment on frame 208,
Fixed pulley 201 is fixed on another holder.
In the present embodiment, the radius that the value of thrust that is shown on digital display meter 204 is multiplied by servo motor shaft 207 obtains servo
The moment of friction of motor.Specifically, the moment of friction overcome when the shaft of servo motor 207 will just rotate is stiction
Square, the moment of friction overcome when 207 uniform rotation of shaft of servo motor are dynamic friction torque.
Refering to Fig. 3, Fig. 3 be it is provided by the utility model for measure servo motor moment of friction detection device third implement
The principle schematic of example.The present embodiment and second embodiment difference lies in：Detection device includes by fixed pulley 301 and movable pulley
The pulley blocks of 309 compositions, Power Component 303 are connect by drawstring 305 and pulley blocks with the first end of force snesor 302.Pass through
Increase movable pulley 309 and reached labour-saving effect, reduces in the case where the pulling force for providing same size enables shaft 307 to rotate
The output power of Power Component 303.Wherein, servo motor and fixed pulley 301 to be measured is fixed on holder 308, and fixed pulley 301
It is fixed on the top of holder 308, can adjust fixed pulley 301 when measuring the moment of friction of servo motor of different size is propping up
Position on frame 308.The second end of force snesor 302 is connect by drawstring 305 with the shaft 307 of servo motor to be detected, power
Sensor 302 is equipped with signal output line 306, and signal output line 306 is electrically connected with digital display meter 304, and force snesor 302 is being drawn
When the pulling force of rope, the electric signal of characterization value of thrust is exported by signal output line 306, digital display meter 304 is for receiving characterization pulling force
The electric signal of value simultaneously shows the value of thrust.In other specific implementation modes, the signal output line 306 of force snesor 302 may be used also
To be electrically connected with computing device via amplifier, moment of friction can be accurately calculated and be shown along shaft 307 by computing device
The change curve of circumference is conducive to subsequent data analysis.In a specific embodiment, computing device is computer.
In the present embodiment, force snesor 302 includes force sensing element, conversion element and circuit element, and force sensing element will obtain
Value of thrust electric signal is converted to by conversion element, and the electric signal transmission of value of thrust will be characterized to signal by circuit element
Output line 306.
Further, Power Component 303 is connect by drawstring 305 and pulley blocks with the first end of force snesor 302, with power
The drawstring 305 of 302 second end of sensor connection is wrapped in the shaft 307 of servo motor, can ensure that shaft 307 is made to rotate institute
It is consistent with the tangential acceleration direction of shaft 307 with the direction of pulling force, and then improve the repeatability and accuracy of detection.
Further, Power Component 303 is hand wheel component, and Power Component 303 provides pulling force by drawstring 305, by drawing
Rope 305 drives shaft 307 to rotate, and in other specific implementation modes, Power Component 303 or motor do not do have herein
Body limits.
In the present embodiment, servo motor is permanent-magnet alternating current servo motor, and servo motor and fixed pulley 301 to be measured is fixed on branch
Servo motor to be measured can be fixed on holder 308 in other embodiments for a specific embodiment on frame 308,
Fixed pulley 301 is fixed on another holder.
In the present embodiment, the radius that servo motor shaft 307 is multiplied by with the value of thrust shown on digital display meter 304 is watched
Take the moment of friction of motor.Specifically, the moment of friction overcome when the shaft of servo motor 307 will just rotate is static friction
Torque, the moment of friction overcome when 307 uniform rotation of shaft of servo motor are dynamic friction torque.
The Power Component of the case where being different from the prior art, the utility model is connected by the first end of drawstring and force snesor
It connects, the second end of force snesor is connected by the shaft of drawstring and servo motor, and force snesor leads to when by the pulling force of drawstring
Cross the electric signal of signal output line output characterization value of thrust.In this way, Power Component pulls machine shaft to rotate by drawstring, and by
The electric signal of the signal output line output characterization value of thrust of force snesor, and then realize that lifting drawstring manually without personnel makes servo
The shaft of motor rotates, and can improve the repeatability of operation and detect the precision of servo motor moment of friction.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (10)
1. for measuring the detection device of servo motor moment of friction, which is characterized in that the detection device includes：
Holder, the holder is for fixing the servo motor；
Force snesor, the force snesor include signal output line；
Drawstring and Power Component, the Power Component are connect by the drawstring with the first end of the force snesor, the power
The second end of sensor is connect by the drawstring with the shaft of the servo motor, and the force snesor is by the drawstring
Pulling force when, pass through the electric signal that signal output line output characterizes the value of thrust.
2. a kind of detection device according to claim 1, which is characterized in that the Power Component is hand wheel component.
3. a kind of detection device according to claim 1, which is characterized in that the Power Component is motor.
4. a kind of detection device according to claim 1, which is characterized in that further include fixed pulley, the Power Component is logical
It crosses the drawstring and the fixed pulley is connect with the first end of the force snesor.
5. a kind of detection device according to claim 4, which is characterized in that the fixed pulley is fixed on the top of the holder
Portion.
6. a kind of detection device according to claim 1, which is characterized in that further include by fixed pulley and running block at
Pulley blocks, the Power Component are connect by the drawstring and the pulley blocks with the first end of the force snesor.
7. a kind of detection device according to claim 1, which is characterized in that further include digital display meter, the digital display meter and institute
Signal output line electrical connection is stated, the digital display meter is for receiving the electric signal for characterizing the value of thrust and showing the value of thrust.
8. a kind of detection device according to claim 1, which is characterized in that further include amplifier and computing device, it is described
The signal output line of force snesor is electrically connected via the amplifier with the computing device, and the computing device is for calculating simultaneously
Show the change curve of the servo motor moment of friction.
9. a kind of detection device according to claim 1, which is characterized in that the force snesor includes force sensing element, turns
Change element and circuit element.
10. a kind of detection device according to claim 1, which is characterized in that the servo motor is permanent magnetic Ac servo
Motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721752801.9U CN207717268U (en) | 2017-12-14 | 2017-12-14 | Detection device for measuring servo motor moment of friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721752801.9U CN207717268U (en) | 2017-12-14 | 2017-12-14 | Detection device for measuring servo motor moment of friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207717268U true CN207717268U (en) | 2018-08-10 |
Family
ID=63056048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721752801.9U Active CN207717268U (en) | 2017-12-14 | 2017-12-14 | Detection device for measuring servo motor moment of friction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207717268U (en) |
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2017
- 2017-12-14 CN CN201721752801.9U patent/CN207717268U/en active Active
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