CN107607235A - A kind of cogging torque of permanent magnet motor measurement apparatus - Google Patents
A kind of cogging torque of permanent magnet motor measurement apparatus Download PDFInfo
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- CN107607235A CN107607235A CN201710827596.6A CN201710827596A CN107607235A CN 107607235 A CN107607235 A CN 107607235A CN 201710827596 A CN201710827596 A CN 201710827596A CN 107607235 A CN107607235 A CN 107607235A
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- torsion bar
- floating block
- container
- protractor
- cogging torque
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Abstract
The present invention discloses a kind of cogging torque of permanent magnet motor measurement apparatus, including support, horizontal base, angle mark post, protractor, torsion bar, floating block, container and mat material, container is placed on base, there is value graticule on support, cogging torque value after sign water level depth directly perceived or conversion, the angle mark post is a right angle thin bar, paste on stator one end, the other end is suspended from before protractor, adjustment is fixed, rotor relative position, the torsion bar is all right angle bar, crossbar end is horizontally fixed on shaft encoder end together with protractor, vertical pole end has a level board to be used to paste floating block, floating block is put into container bottom, it is horizontal before measuring with mat material holding torque bar crossbar sections, and there is no water inside container.The present invention is simple to operate, and device materials are easy to get and made simply, and measurement range is not easy to be limited.
Description
Technical field
The invention belongs to machine field, and in particular to a kind of cogging torque of permanent magnet motor measurement apparatus.
Background technology
The existing cogging torque measurement common method of magneto has：Dynamometry, counterweight method, electronic scale method, voltage method,
Easily there is following point in sensor method, torque meter method, above-mentioned measuring method：Dynamometry needs to remain tension level, and
Ignore the influence of dynamometer self gravitation, operation difficulty is big；Counterweight method needs to prepare the system matched with institute measured motor cogging torque
Row counterweight；Electronic scale method needs to ensure the level of balancing pole any instant, and step is comparatively laborious；Voltage method belongs to indirect measurement,
Method is complicated and is only applicable to induced electromotive force with the more sensitive magneto of M curve change；Sensor method and torque meter
Method is more accurate, but not only needs the instruments such as special torque sensor, torque measurer, it is also necessary to supporting dragging motor,
The equipment such as the pulse power, cost are higher.These methods, which not only operate, to acquire a certain degree of difficulty, and often also needs to according to institute's measured motor tooth
Groove torque range changes the instrument or instrument of different ranges, and application limitation is larger.
The content of the invention
Present invention aims at provide a kind of simple to operate, device assembly be simply easy to get, measurement range be not easy it is limited forever
Magneto cogging torque measurement apparatus.
The technical scheme is that：A kind of cogging torque of permanent magnet motor measurement apparatus, including angle mark post, protractor,
Torsion bar, floating block, support, container, mat material, the support and horizontal base with value graticule, described angle mark post and torque
Bar is all L-shaped, and protractor and one end of torsion bar cross bar are fixed on into the axle stretch end end that motor and its encoder be connected, angulation
The base of device is parallel with torsion bar cross bar, and angle mark post crossbar end is pasted onto motor stator outer radius, and angle mark post vertical pole hangs
Overlap before protractor, and with the center line of protractor, support and the orthogonal connection of horizontal base, leaned on horizontal base
Container is placed with nearly support, container fills water, and one end of torsion bar vertical pole is pasted with floating block, and floating block is placed in inside container, pad
Material is placed between bracket base and container.
The present invention also has following technical characteristic：
1st, the floating block regular shape, thereon, lower surface is parallel and horizontal cross-sectional area is fixed.
When the 2nd, measuring water is filled in container.
3rd, the value graticule of support can intuitively read the depth h of injection water as needed, so as to be calculated as cogging torque
Numerical value, computational methods are：
When torsion bar is light weight beam：Tcog=(ρ gSh-G) × L；
L is distance of the electrical axis to torsion bar vertical pole center line, and ρ is the density of water, and S is the cross-sectional area of floating block, and G is
The total force of floating block and torsion bar,
When torsion bar is non-light weight beam：Tcog=(ρ gSh-G1-0.5G2)×L
Wherein G1For the total force of floating block and torsion bar lever part, G2For the gravity of torsion bar crossbar sections.
4th, the floating block is cuboid or cylinder.
The advantage of the invention is that：It is simple to operate, using water buoyancy direction all the time vertically upward, as rotor outside
Active force reduces survey crew's operation difficulty；Device assembly right angle bar, support, protractor material are easy to get and made simply, float
Block, water container have no strict geomery requirement, can select replacement items according to field condition；Measure different range abilities
Motor cogging torque, it is only necessary to adjust the sectional area or depth of floating block and container, cutting, splicing can be realized quickly, measure model
Enclose and be not easy to be limited.
Brief description of the drawings
Fig. 1 is front view of the present invention；
Fig. 2 is Fig. 1 side view；
Fig. 3 is Fig. 2 top view.
Wherein 1. angle mark posts, 2. protractors, 3. torsion bars, 3a. level boards, 4. floating blocks, 5. supports, 5a. torque graticules,
5b. horizontal bases, 6. containers, 7. water, 8. mat material, 1a, angle mark post cross bar, 1b, angle mark post cross bar.
Embodiment
In conjunction with accompanying drawing, the invention will be further described.
Embodiment 1
As Figure 1-3, a kind of cogging torque of permanent magnet motor measurement apparatus, including angle mark post 1, protractor 2, torsion bar
3rd, floating block 4, support 5, container 6, mat material 8, the support 5 and horizontal base 5b with value graticule 5a, the described He of angle mark post 1
Torsion bar 3 is all L-shaped, and protractor 2 and one end of the cross bar of torsion bar 3 are fixed on into the axle stretch end end that motor and its encoder be connected
Portion, the base of protractor 2 is parallel with the cross bar of torsion bar 3, and angle mark post cross bar 1a ends are pasted onto motor stator outer radius, angle
Mark post vertical pole 1b is suspended from before protractor 2, and is overlapped with the center line of protractor 2, and support 5 and horizontal base 5b are orthogonal
Connect, be placed with container 6 at support 5 on horizontal base 5b, one end of the vertical pole of torsion bar 3 is pasted with floating block 4, and floating block 4 is put
Inside container 6, mat material 8 is placed between bracket base 5b and container 6, and the floating block is cylinder.
Measuring method of the present invention：Preparation before measurement will be as shown in figure 1, will treat that measured motor is placed on testboard, with stand pad
Certain altitude is played, protractor 2 and the one end of torsion bar 3 are fixed on the axle stretch end end that motor is connected with encoder using screw,
The base of protractor 2 and torsion bar cross bar keeping parallelism, then torsion bar vertical pole and the firm pasting of floating block 4 are realized under Hard link
The conduction of power, floating block 4 are put into the bottom of empty container 6, and support 5 is placed in by motor, and container 6 is placed on the horizontal base of support 5
On 5b, the height of container 6 is adjusted using mat material 8, the crossbar sections of holding torque bar 3 are in horizontality, record the following table of floating block 4
Face corresponds to the scale h1 on support 5, angle mark post cross bar 1a ends then is pasted onto into motor stator outer radius, angle mark post is indulged
Bar 1b is suspended from before protractor 2, angle mark post cross bar center line is overlapped with the center line of protractor 2, it is relative to be designated as stator and rotor
Position X1.When measurement starts, water 7 is slowly injected into container 6, the height of water level that record torsion bar 3 begins to ramp up the moment is corresponding
Scale h2 on support 5 simultaneously stops water filling, and h1 and h2 difference are SEA LEVEL VARIATION height.According to the α ° of selection of motor slot-pitch angle degree
Relative angle α1°, angle mark post vertical pole 1b corresponds to the scale of protractor 2 by stator rotation alpha1°, direction of rotation is suitable, equal counterclockwise
Can, stator and rotor relative position X2 is now designated as, measuring method is same as above, and can obtain the water under different stator and rotor relative positions accordingly
Position change in elevation, selects wherein maximum height h to calculate motor cogging torque, when torsion bar is light weight beam：
Tcog=(ρ gSh-G) × L
Wherein as shown in figure 3, L is distance of the electrical axis to the vertical pole center line of torsion bar 3, ρ is the density of water, and S is floating
The cross-sectional area of block 4, G are the total force of floating block 4 and torsion bar 3.
When torsion bar 3 is non-light weight beam, then further accurate calculate is needed：
Tcog=(ρ gSh-G1-0.5G2)×L
Wherein G1For the total force of floating block 4 and the lever part of torsion bar 3, G2It is other for the gravity of the crossbar sections of torsion bar 3
Variable is same as above.
Claims (5)
1. a kind of cogging torque of permanent magnet motor measurement apparatus, including angle mark post (1), protractor (2), torsion bar (3), floating block
(4), support (5), container (6), mat material (8), the support (5) with value graticule (5a) and horizontal base (5b), its feature exist
In described angle mark post (1) and torsion bar (3) are all L-shaped, and one end of protractor (2) and torsion bar (3) cross bar is fixed on
Motor and its axle stretch end end of encoder connection, the base of protractor (2) is parallel with torsion bar (3) cross bar, and angle mark post is horizontal
Bar (1a) end is pasted onto motor stator outer radius, and angle mark post vertical pole (1b) is suspended from before protractor (2), and and protractor
(2) center line overlaps, support (5) and horizontal base (5b) orthogonal connection, close to support (5) place on horizontal base (5b)
Container (6) is placed with, one end of torsion bar (3) vertical pole is pasted with floating block (4), and floating block (4) is placed in container (6) inside, mat material (8)
It is placed between bracket base (5b) and container (6).
2. cogging torque of permanent magnet motor measurement apparatus according to claim 1, it is characterised in that：Floating block (4) shape
Rule, thereon, lower surface is parallel and horizontal cross-sectional area is fixed.
3. cogging torque of permanent magnet motor measurement apparatus according to claim 1, it is characterised in that：Filled during measurement in container
Water.
4. cogging torque of permanent magnet motor measurement apparatus according to claim 1, it is characterised in that：The value mark of support (5)
Line can intuitively read the depth h of injection water (7) as needed, and so as to be calculated as cogging torque numerical value, computational methods are：
When torsion bar (3) is light weight beam：Tcog=(ρ gSh-G) × L；
L be electrical axis arrive torsion bar (3) vertical pole center line distance, ρ be water density, S be floating block (4) cross-sectional area, G
For the total force of floating block (4) and torsion bar (3),
When torsion bar (3) is non-light weight beam：Tcog=(ρ gSh-G1-0.5G2)×L
Wherein G1For the total force of floating block (4) and torsion bar (3) lever part, G2For the gravity of torsion bar (3) crossbar sections.
5. cogging torque of permanent magnet motor measurement apparatus according to claim 1 or 2, it is characterised in that：The floating block (4) is
Cuboid or cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710827596.6A CN107607235B (en) | 2017-09-14 | 2017-09-14 | A kind of cogging torque of permanent magnet motor measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710827596.6A CN107607235B (en) | 2017-09-14 | 2017-09-14 | A kind of cogging torque of permanent magnet motor measuring device |
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| CN107607235A true CN107607235A (en) | 2018-01-19 |
| CN107607235B CN107607235B (en) | 2019-10-29 |
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| CN201710827596.6A Active CN107607235B (en) | 2017-09-14 | 2017-09-14 | A kind of cogging torque of permanent magnet motor measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029823A (en) * | 2018-09-03 | 2018-12-18 | 快意电梯股份有限公司 | Synchnorous gearless dragging machine braking-force detecting device and detection method |
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| CN102116718A (en) * | 2011-01-17 | 2011-07-06 | 浙江海洋学院 | Water pressure resistance device for fishing floater |
| CN102498285A (en) * | 2009-06-30 | 2012-06-13 | 特纳·汉特 | Pitch, roll and drag stabilization of a tethered hydrokinetic device |
| CN103499406A (en) * | 2013-09-18 | 2014-01-08 | 浙江工商大学 | Perpendicularly-hung high-precision torque testing device in thermal vacuum environment |
| JP2014095671A (en) * | 2012-11-12 | 2014-05-22 | Tohnichi Mfg Co Ltd | Torque measuring equipment for reference |
| CN105486443A (en) * | 2016-01-04 | 2016-04-13 | 湖南工业大学 | Single-support roller resistance coefficient test bench and test method |
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2017
- 2017-09-14 CN CN201710827596.6A patent/CN107607235B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498285A (en) * | 2009-06-30 | 2012-06-13 | 特纳·汉特 | Pitch, roll and drag stabilization of a tethered hydrokinetic device |
| CN102116718A (en) * | 2011-01-17 | 2011-07-06 | 浙江海洋学院 | Water pressure resistance device for fishing floater |
| JP2014095671A (en) * | 2012-11-12 | 2014-05-22 | Tohnichi Mfg Co Ltd | Torque measuring equipment for reference |
| CN103499406A (en) * | 2013-09-18 | 2014-01-08 | 浙江工商大学 | Perpendicularly-hung high-precision torque testing device in thermal vacuum environment |
| CN105486443A (en) * | 2016-01-04 | 2016-04-13 | 湖南工业大学 | Single-support roller resistance coefficient test bench and test method |
Non-Patent Citations (1)
| Title |
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| 高涵，张明路等: "水下机械手动力学模型及力矩影响研究", 《机械设计与制造》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029823A (en) * | 2018-09-03 | 2018-12-18 | 快意电梯股份有限公司 | Synchnorous gearless dragging machine braking-force detecting device and detection method |
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| Publication number | Publication date |
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| CN107607235B (en) | 2019-10-29 |
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Address after: Room 301, floor 3, No. 6 A (all), Zhongde street, Shenyang Economic and Technological Development Zone, Liaoning Province Patentee after: Shenyang Zhongke Electric Technology Co.,Ltd. Address before: 150000 No. 15199, Zhongyuan Avenue, unit 1, building 4, enterprise accelerator, science and technology innovation city, high tech Zone, Harbin, Heilongjiang Province Patentee before: HARBIN GAOJING MOTOR TECHNOLOGY Co.,Ltd. |
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