CN201945274U - Pressure calibration device for caliper of motor coil - Google Patents
Pressure calibration device for caliper of motor coil Download PDFInfo
- Publication number
- CN201945274U CN201945274U CN2011200002418U CN201120000241U CN201945274U CN 201945274 U CN201945274 U CN 201945274U CN 2011200002418 U CN2011200002418 U CN 2011200002418U CN 201120000241 U CN201120000241 U CN 201120000241U CN 201945274 U CN201945274 U CN 201945274U
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- China
- Prior art keywords
- coil
- pressure
- caliper
- signal processor
- calliper rule
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- Expired - Lifetime
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Abstract
The utility model relates to a pressure calibration device for a caliper of a motor coil. The pressure calibration device comprises a testing table, a strain type force gauge, a pressure signal acquisition module, a signal processor and a display device, wherein a support is arranged on the testing table, and the caliper of the coil is fixed on the support; the strain type force gauge is measured in a measurement space of the caliper of the coil and used for detecting the clamping force of the caliper of the coil; the pressure signal acquisition module is used for converting pressure signals detected by the strain type force sensor to digital signals and sending into the signal processor for processing; and output signals of the signal processor are sent to the display device for display. The device can precisely calibrate the preset pressure of the pressure caliper of the coil and enable the thickness detection value of an insulating layer of the coil to be true and credible.
Description
Technical field
The utility model relates to a kind of measurement instrument, is specifically related to a kind of pressure calibrating installation of motor coil slide calliper rule.
Background technology
The winding of large-size machine adopts formed coil, produce in batches by the coil workshop is specialized, be sent to the making-up shop again, pack in the wire casing of motor, the coil insulation layer thickness is a key parameter, must accurately measure the thickness of insulating layer value under certain pressure, sectional dimension is big, the wire casing of can not packing into, size is little, can become flexible in wire casing again.In order to guarantee the quality of coil, to test to the sectional dimension of coil in the coil workshop, method is the sectional dimension with the kind of calliper coil, because the insulation course of coil surface is an organic material, flexible, during with kind of calliper coil section size, energy measurement goes out the size in a certain specific holding force state lower coil only, so the coil slide calliper rule are a kind of special-purpose slide calliper rule, have boosting mechanism.
The coil slide calliper rule that two kinds of structures are arranged at present, a kind of is to be provided with afterburning cylinder and displacement transducer on the movable measuring jaw of slide calliper rule, provides holding force by cylinder, by displacement transducer magnetic test coil size.
Another kind is the pressure vernier caliper, and its vernier scale is provided with energizing spring; Provide holding force by spring, by vernier read coil size.
When above-mentioned coil slide calliper rule use, to examine and determine with calibrating installation earlier, demarcate the preset pressure of cylinder or spring.Method is by adjusting the aperture of cylinder charge valve, demarcating cylinder pressure; By the initial length of screw adjustment spring, demarcate spring pressure.
The pressure calibrating installation of existing coil pressure slide calliper rule as shown in Figure 4, it is made up of worktable 1, tensimeter 2, and during calibrating, the movable measuring jaw 4 of coil slide calliper rule 3 is lived on the dynamometry crown of tensimeter 2, energizing spring reinforcing by slide calliper rule comes nominal pressure by manometric reading.The problem that this device exists is:
1. the precision of mechanical compression table is limited, causes coil interface dimensions measuring accuracy low;
2. can only examine and determine the coil vernier caliper of spring-loaded;
3. this device volume is huge, inconvenient operation.
Summary of the invention
The purpose of this utility model provides a kind of motor coil caliper pressure calibrating installation, the preset pressure that can accurately demarcate slide calliper rule.
The technical solution of the utility model is:
A kind of motor coil caliper pressure calibrating installation comprises testing table, strain force sensor, pressure signal acquisition module, signal processor, display; Described testing table is provided with support, and the coil slide calliper rule are fixed on this support; Described strain force sensor is arranged in the measurement space of coil slide calliper rule, the holding force that is used for the magnetic test coil slide calliper rule, the pressure signal acquisition module converts the detected pressure signal of strain force sensor to digital signal, send into signal processor processes, the output signal of signal processor is sent into display and is shown.
Described strain force sensor is made up of mount pad, resistance strain gage and lead-in wire thereof, and described mount pad has the dynamometry workplace of pair of parallel, and described resistance strain gage is arranged on this dynamometry workplace.
Described resistance strain gage is the bridge-type foil gauge, and in dynamometry scope 0～60N, 0～40 ℃ of scope of environment temperature, its resolution is 0.1N.
The beneficial effects of the utility model:
Because the force transducer precision height of this device, accurately the preset pressure of calibration coil pressure slide calliper rule makes to coil section size detection value genuine and believable.Device volume is little, and is easy to operate.Versatility is arranged, can examine and determine the coil slide calliper rule of any boosting mechanism.
Description of drawings
Fig. 1 is the structural representation of this calibrating installation;
Fig. 2 is the force transducer structural representation;
Fig. 3 is the topology diagram of this calibrating installation;
Fig. 4 is the structural representation of existing calibrating installation.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3.
This coil caliper pressure calibrating installation comprises testing table 1, strain force sensor 2, pressure signal acquisition module 3, signal processor 4, display 5.Testing table 1 is provided with support 6, is used for fixing coil pressure slide calliper rule 7.
The principal feature of this device is to adopt strain force sensor 2, and it is by mount pad 2.1, resistance strain gage 2.2 and go between and 2.3 form, and mount pad 2.1 has the dynamometry workplace of pair of parallel, and resistance strain gage 2.2 is arranged on this dynamometry workplace.Resistance strain gage 2.2 is the bridge-type foil gauge, dynamometry scope 0～60N, and 0～40 ℃ of environment temperature, best in dynamometry scope 10～60N linearity, its resolution is 0.1N, measuring accuracy is very high.
The using method of this device:
Earlier coil slide calliper rule 7 are fixed on the support 6, again strain force sensor 2 is placed the measurement space of coil slide calliper rule 7, two surveying work faces of sensor 2 are the fixedly measuring jaw and the movable measuring jaw of corresponding slide calliper rule respectively, move movable measuring jaw, sensor 2 is clamped, adjusted the boosting mechanism of slide calliper rule again, make the power that acts on the force transducer 2 meet design load, lock boosting mechanism then, promptly finish demarcation.If boosting mechanism is a spring, then adjust the initial length of spring by adjusting screw, make the elastic force of spring meet design load, if boosting mechanism is a cylinder, then adjust the aperture of charging valve, make the pressure of cylinder meet design load.So this device can be examined and determine the coil slide calliper rule of various boosting mechanisms.
Its measuring principle is:
Pressure signal acquisition module 3 converts strain force sensor 2 detected pressure signals to digital signal, sends into signal processor 4 and handles, and the output signal of signal processor 4 is sent into display 5 and shown.
Claims (4)
1. a motor coil caliper pressure calibrating installation is characterized in that: comprise testing table, strain force sensor, pressure signal acquisition module, signal processor, display; Described testing table is provided with support, and the coil slide calliper rule are fixed on this support; Described strain force sensor is arranged in the measurement space of coil pressure slide calliper rule, the holding force that is used for the magnetic test coil slide calliper rule, the pressure signal acquisition module converts the detected pressure signal of strain force sensor to digital signal, send into signal processor processes, the output signal of signal processor is sent into display and is shown.
2. motor coil caliper pressure calibrating installation according to claim 1, it is characterized in that: described strain force sensor is made up of mount pad, resistance strain gage and lead-in wire thereof, described mount pad has the dynamometry workplace of pair of parallel, and described resistance strain gage is arranged on this dynamometry workplace.
3. motor coil caliper pressure calibrating installation according to claim 2 is characterized in that: described resistance strain gage is the bridge-type foil gauge, and its resolution is 0.1N, dynamometry scope 0～60N.
4. motor coil caliper pressure calibrating installation according to claim 3 is characterized in that: described dynamometry scope 10～60N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200002418U CN201945274U (en) | 2011-01-04 | 2011-01-04 | Pressure calibration device for caliper of motor coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200002418U CN201945274U (en) | 2011-01-04 | 2011-01-04 | Pressure calibration device for caliper of motor coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945274U true CN201945274U (en) | 2011-08-24 |
Family
ID=44472613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200002418U Expired - Lifetime CN201945274U (en) | 2011-01-04 | 2011-01-04 | Pressure calibration device for caliper of motor coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201945274U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032846A (en) * | 2011-01-04 | 2011-04-27 | 东方电气集团东方电机有限公司 | Pressure calibration device for coil caliper rule of motor |
| EP2584333A1 (en) * | 2011-10-19 | 2013-04-24 | W. Ludolph GmbH & Co. KG | Device and method for testing the precision of measuring devices and use of such a testing device for testing the precision of mesh measuring devices |
| CN104729387A (en) * | 2014-08-08 | 2015-06-24 | 毛守玠 | Platform type precise range finder capable of ranging in batch conveniently |
-
2011
- 2011-01-04 CN CN2011200002418U patent/CN201945274U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032846A (en) * | 2011-01-04 | 2011-04-27 | 东方电气集团东方电机有限公司 | Pressure calibration device for coil caliper rule of motor |
| CN102032846B (en) * | 2011-01-04 | 2012-07-04 | 东方电气集团东方电机有限公司 | Pressure calibration device for coil caliper rule of motor |
| EP2584333A1 (en) * | 2011-10-19 | 2013-04-24 | W. Ludolph GmbH & Co. KG | Device and method for testing the precision of measuring devices and use of such a testing device for testing the precision of mesh measuring devices |
| CN104729387A (en) * | 2014-08-08 | 2015-06-24 | 毛守玠 | Platform type precise range finder capable of ranging in batch conveniently |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110824 Effective date of abandoning: 20120704 |