CN103776495A - Non-contact type gear rotational speed detection experimental device - Google Patents
Non-contact type gear rotational speed detection experimental device Download PDFInfo
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- CN103776495A CN103776495A CN201410062617.6A CN201410062617A CN103776495A CN 103776495 A CN103776495 A CN 103776495A CN 201410062617 A CN201410062617 A CN 201410062617A CN 103776495 A CN103776495 A CN 103776495A
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Abstract
The invention discloses a non-contact type gear rotational speed detection experimental device. A gear meter with an end face measurement mode is simplified into a gear (9) driven by an electromotor (12) and an end face rotational speed test assembly (4) fixed on a base assembly (2) to simulate end face rotational speeds of the gear meter for measurement; a gear meter with a radial measurement mode is simplified into the gear (9) driven by the electromotor (12) and a radial rotational speed test assembly (5) fixed on the base assembly (2) to simulate radial rotational speeds of the gear meter for measurement, wherein a casing test cap (16) simulates a casing of the gear meter. The non-contact type gear rotational speed detection experimental device is capable of simulating gears with different magnetic permeability materials, casings with different magnetic permeability materials, casing thickness at different measurement positions, and gear meters of gear rotational speed sensors (13) at different arrangement positions and in different types. According to the non-contact type gear rotational speed detection experimental device, a design basis is provided for a high pressure gear meter.
Description
Technical field
The present invention relates to a kind of gear rotational speed test experience device, relate in particular to contactless gear rotational speed technical field of measurement and test.
Background technology
High-pressure gear flowmeter is in design process, need to consider the impact of following factor: (1) gear is to adopt permeability magnetic material, or with non-magnet material, as both selected the strong permeability magnetic material such as 45 steel, stainless steel 2gr13, also can on weak magnetic conduction and non-magnet material, install magnet steel additional; For the gear of weak permeability magnetic material and non-magnet material, consider to install additional the method for magnet steel and the arrangement of magnet steel; (2) non-magnet material that housing can adopt, if the material of housing can be the weak magnetic conduction such as stainless steel 304, aluminium alloy, cast iron or non-magnet_conductible material; (3) gear velocity sensor of which type is applicable to the measurement of gear meter, as the sensor of selectable prototype gear rotating speed has: three kinds of inductance types, magneto-electric, Hall-type; (4) determining of gear velocity sensor installation site; (5) gear velocity sensor can penetrate determining of maximum ga(u)ge that housing measures.The selection of these parameters, material etc. and determine all need to solve by experiment, if but such experiment is done on flowmeter, for the housing of the gear of dissimilar gear velocity sensor, different magnetic conductive materials, different magnetic conductive materials, the experiment such as different installation sites, the maximum ga(u)ge that sensor can penetrate housing of sensor, all need to produce after dissimilar experimental prototype, just can test, this will produce huge waste, has increased the cost of product.
For above these situations, in order to reduce production costs, the present invention has designed " a kind of contactless gear rotational speed test experience device ", and it can, according to the actual conditions of gear meter, can simulate following experiment on this experiment table: the gear of (1) different magnetic conductive materials; (2) housing of different magnetic conductive materials; (3) dissimilar gear velocity sensor; (4) the different installation sites of sensor; (5) sensor can penetrate the experiments such as the maximum ga(u)ge of housing.Finally determine the type of gear meter gear velocity sensor, the material of gear, the material of housing, installation site, the suitable thickness that sensor need penetrate housing etc. of sensor according to experimental result, for the design of gear meter provides foundation, thereby avoid testing the waste of brought production cost on flowmeter.
Summary of the invention
Gear meter principle of work is when there being liquid to pass through gear wheel flow-rate timing, gear can rotate with liquid flow, the flow signal of fluid is converted to the tach signal of gear, then extract the tach signal of flowmeter gear by contactless gear velocity sensor, then tach signal is transformed into the flow signal of flowmeter.The gear rotational speed of gear meter is measured and the measurement difference of ordinary gear rotating speed is: between the tested gear and speed probe of flowmeter, across the housing (not magnetic conduction) of flowmeter, and between common tested gear and sensor across be air.
For the gear meter of low pressure, angular encoder can be contained on a gear output shaft of gear meter, and then carry out the gear rotational speed of measuring flow meter by angular encoder, current this technology is ripe, but for high-pressure gear flowmeter, the import of flowmeter, outlet is all hydraulic oil, as want to come by the mode of angular encoder the gear rotational speed of prototype gear flowmeter, just must on the gear output shaft of gear meter, install high pressure rotary sealing additional, will produce so very large pressure loss, so, the gear rotational speed of high-pressure gear flowmeter can not be measured by the mode of angular encoder, can only take contactless metering system, at present, gear meter adopts gear velocity sensor to carry out the rotating speed of prototype gear flowmeter gear, then gear rotational speed signal is converted again to the flow signal of gear meter, wherein, the arrangement that gear velocity sensor is arranged in gear face is called end face arrangement, and the arrangement that gear velocity sensor is arranged in gear top is called radial arrangement mode.
The technical scheme that the present invention solves its technical matters employing is:
This experimental provision is that the gear meter of end surface measurement mode is reduced to by the gear (9) of motor (12) drive and the end face measurement of rotating speed assembly (4) being fixed on base assembly (2) and is formed, the end face tachometric survey of simulation gear meter, wherein, housing cap test (16) is the housing of simulation gear meter, upper at housing cap test (16), gear velocity sensor (13) is housed; The gear meter of radial measurement mode is reduced to by the gear (9) of motor (12) drive and the radially measurement of rotating speed assembly (5) being fixed on base assembly (2) and is formed, the radially tachometric survey of simulation gear meter wherein, housing cap test (16) is the housing of simulation gear meter, upper at housing cap test (16), gear velocity sensor (13) is housed.
The present invention is compared with background technology, and the beneficial effect having is:
Gear (9) is made four kinds of gears of different magnetic properties by stainless steel 304, the carbon steel of magnetic conduction, " non-magnetic stainless steel 2gr13 installs magnet additional ", " aluminium alloy installs magnet additional " of magnetic conduction; Housing cap test (16) is made two kinds of cap tests of different magnetic properties by non-magnetic stainless steel 2gr13, aluminium alloy; The thickness of housing cap test (16) is respectively tetra-kinds of 1mm, 1.5mm, 2mm, 3mm.
Therefore the present invention can simulate the housing of the gear of the different magnetic conductive materials of gear meter, different magnetic conductive materials, the thickness of shell of different measuring position, the different positions of sensor, dissimilar gear velocity sensor (13), find position and the thickness of shell that sensor can penetrate etc. of gear material that match with it, economy optimum, performance the best, case material, installation of sensors.The present invention provides design considerations for high-pressure gear flowmeter.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the present invention will be further described.
Fig. 1 is blast schematic diagram of the present invention.
Fig. 2 is base assembly explosive view of the present invention.
Fig. 3 is electric machine assembly explosive view of the present invention.
Fig. 4 is end face measurement of rotating speed assembly explosive view of the present invention.
Fig. 5 is end face measurement of rotating speed assembly X-Y scheme of the present invention.
Fig. 6 is radially measurement of rotating speed assembly explosive view of the present invention.
Fig. 7 is the fried figure of radially measurement of rotating speed assembly two dimension of the present invention.
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7,1. frequency converter, 2. base assembly, 3. electric machine assembly, 4. end face measurement of rotating speed assembly, 5. radially measurement of rotating speed assembly, 6. adjusting bolt, 7. guider screw, 8. base, 9. gear, 10. radially test pole, 20. carrier bases, 21. holding screws, 22. bolts, 23. nuts of axle, 11. shaft couplings, 12. motors, 13. speed probes, 14. measuring end surface posts, 15. end face supports, 16. housing cap tests, 18. radial struts, 19..
Embodiment
As shown in Fig. 1,2,3,4,5,6,7, a kind of contactless gear rotational speed test experience device is by frequency converter (1), base assembly (2), electric machine assembly (3), end face measurement of rotating speed assembly (4), radially measurement of rotating speed assembly (5) forms; Frequency converter (1) left side is parallel with base assembly (2) left side, and is connected with base assembly (2) end face by screw; Electric machine assembly (3) is by four upper surfaces that are bolted to base assembly (2); It is upper that end face measurement of rotating speed assembly (4) utilizes holding screw (21) to be fixed on carrier base (20) by end face support (15), and it is upper that carrier base (20) is welded on base (8), unclamps the height of the adjustable end face support of holding screw (21) (15); Radially measurement of rotating speed assembly (5) is bolted on the guide groove of base (8), by the distance between speed probe (13) and gear (9) end face of the adjustable radially measurement of rotating speed of guide groove assembly (5); Housing cap test (16) in end face measurement of rotating speed assembly (4) and radially measurement of rotating speed assembly (5) simulation actual gear flowmeter is positioned at the thin walled shell at speed probe (13) top place; Gear rotor in gear (9) simulation gear meter in electric machine assembly (3); Gear (9) drives by motor (12), and motor (12) rotating speed is controlled by frequency converter (1).
Described base assembly (2) comprises adjusting bolt (6), guider screw (7), holding screw (21), base (8), carrier base (20); On the endoporus of carrier base (20) the latter half, be processed with screw thread, carrier base (20) the first half endoporus is unthreaded hole.
Described end face measurement of rotating speed assembly (4), its end face support (15) is sliding to be contained on the unthreaded hole of carrier base (20), adjusting bolt (6) connects with the endoporus of carrier base (20) the latter half by screw thread, by turning adjusting bolt (6), regulate the height of end face support (15), thereby change speed probe (13) (9) position with respect to gear, and then can do the test experiments of diverse location, determine the best position of mounting hole of speed probe on gear meter (13); Hole on end face support (15) and carrier base (20) is clearance fit; The effect of guider screw (7) is, while regulating the height of end face support (15) by adjusting bolt (6), to keep end face support (15) not rotate, and plays the effect of guiding; The effect of holding screw (21) is when after the location positioning of support (15), and holding screw (21) is screwed, and plays the role of positioning, and guarantees that the axis of speed probe (13) is parallel with the axis of motor (12).
Described electric machine assembly (3) is made up of gear (9), axle (10), shaft coupling (11), motor (12), bolt (22), nut (23), and motor (12) is to be fixed on base (8) by bolt (22) and nut (23); Gear (9) is that interference fit connects with axle (10), and motor (12) is connected by shaft coupling (11) and axle (10), in the time that motor (12) rotates, rotates by axle (10) driven gear (9).
The stainless steel 304 that the material of described gear (9) is magnetic conduction, the carbon steel of magnetic conduction or non-magnetic stainless steel 2gr13 installs magnet additional, non-magnetic aluminium alloy installs magnet additional.
Described end face measurement of rotating speed assembly (4) is made up of speed probe (13), measuring end surface post (14), end face support (15), housing cap test (16), wherein, between speed probe (13) and measuring end surface post (14), adopts and is threaded; Between measuring end surface post (14) and support (15), adopt and be threaded; Housing cap test (16) and measuring end surface post (14) adopt and are threaded.
Described radially measurement of rotating speed assembly (5) is by housing cap test (16), radial struts (18), radially test pole (19), speed probe (13) form; Radial struts (18) is fixed on base (8) with bolt (22), nut (23); Radially test pole (19) installs on support (18) by external thread; Housing cap test (16) installs to radially on test pole (19) by internal thread; It is upper that speed probe (13) installs to test pole (19) by external thread, and the top of speed probe (13) contacts with housing cap test (16); Carry out the radial play of adjusting rotary speed sensor (13) and gear (9) by rotating test pole (19) radially.
The material of described housing cap test (16) is non-magnetic;
The material of described housing cap test (16) is stainless steel 304, aluminium alloy, the cast iron of weak magnetic conduction;
The thickness of described housing cap test (16) is respectively tetra-kinds of 1mm, 1.5mm, 2mm, 3mm.
Described experimental provision is furnished with the housing cap test (16) of different-thickness, different materials, carrys out the test effect of comparison sensor by changing different housing cap tests (16), selects suitable gear meter case material; Can also find installation of sensors hole in end face and optimum position radially.
More than show and described ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. a contactless gear rotational speed test experience device, is characterized in that: comprise frequency converter (1), base assembly (2), electric machine assembly (3), end face measurement of rotating speed assembly (4), measurement of rotating speed assembly (5) radially; Frequency converter (1) left side is parallel with base assembly (2) left side, and is connected with base assembly (2) end face by screw; Electric machine assembly (3) is by four upper surfaces that are bolted to base assembly (2); It is upper that end face measurement of rotating speed assembly (4) utilizes holding screw (21) to be fixed on carrier base (20) by end face support (15), and it is upper that carrier base (20) is welded on base (8), unclamps the height of the adjustable end face support of holding screw (21) (15); Radially measurement of rotating speed assembly (5) is bolted on the guide groove of base (8), by the distance between speed probe (13) and gear (9) end face of the adjustable radially measurement of rotating speed of guide groove assembly (5); Housing cap test (16) in end face measurement of rotating speed assembly (4) and radially measurement of rotating speed assembly (5) simulation actual gear flowmeter is positioned at the thin walled shell at speed probe (13) top place; Gear rotor in gear (9) simulation gear meter in electric machine assembly (3); Gear (9) drives by motor (12), and motor (12) rotating speed is controlled by frequency converter (1).
2. base assembly according to claim 1 (2), is characterized in that: base assembly (2) comprises adjusting bolt (6), guider screw (7), holding screw (21), base (8), carrier base (20); On the endoporus of carrier base (20) the latter half, be processed with screw thread, carrier base (20) the first half endoporus is unthreaded hole.
3. end face measurement of rotating speed assembly according to claim 1 (4), it is characterized in that: sliding being contained on the unthreaded hole of carrier base (20) of end face support (15) of end face measurement of rotating speed assembly (4), adjusting bolt (6) connects with the endoporus of carrier base (20) the latter half by screw thread, by turning adjusting bolt (6), regulate the height of end face support (15), thereby change speed probe (13) (9) position with respect to gear, and then can do the test experiments of diverse location, determine the best position of mounting hole of speed probe on gear meter (13), hole on end face support (15) and carrier base (20) is clearance fit, the effect of guider screw (7) is, while regulating the height of end face support (15) by adjusting bolt (6), to keep end face support (15) not rotate, and plays the effect of guiding, the effect of holding screw (21) is when after the location positioning of support (15), and holding screw (21) is screwed, and plays the role of positioning, and guarantees that the axis of speed probe (13) is parallel with the axis of motor (12).
4. electric machine assembly according to claim 1 (3), it is characterized in that: electric machine assembly (3) is made up of gear (9), axle (10), shaft coupling (11), motor (12), bolt (22), nut (23), motor (12) is to be fixed on base (8) by bolt (22) and nut (23); Gear (9) is that interference fit connects with axle (10), and motor (12) is connected by shaft coupling (11) and axle (10), in the time that motor (12) rotates, rotates by axle (10) driven gear (9).
5. gear according to claim 4 (9), is characterized in that: the stainless steel 304 that the material of gear (9) is magnetic conduction, the carbon steel of magnetic conduction or non-magnetic stainless steel 2gr13 install magnet additional, non-magnetic aluminium alloy installs magnet additional.
6. end face measurement of rotating speed assembly according to claim 1 (4), it is characterized in that: end face measurement of rotating speed assembly (4) is made up of speed probe (13), measuring end surface post (14), end face support (15), housing cap test (16), wherein, between speed probe (13) and measuring end surface post (14), adopt and be threaded; Between measuring end surface post (14) and support (15), adopt and be threaded; Housing cap test (16) and measuring end surface post (14) adopt and are threaded.
7. radially measurement of rotating speed assembly according to claim 1 (5), is characterized in that: radially measurement of rotating speed assembly (5) is by housing cap test (16), radial struts (18), radially test pole (19), speed probe (13) form; Radial struts (18) is fixed on base (8) with bolt (22), nut (23); Radially test pole (19) installs on support (18) by external thread; Housing cap test (16) installs to radially on test pole (19) by internal thread; It is upper that speed probe (13) installs to test pole (19) by external thread, and the top of speed probe (13) contacts with housing cap test (16); Carry out the radial play of adjusting rotary speed sensor (13) and gear (9) by rotating test pole (19) radially.
8. housing cap test according to claim 7 (16), is characterized in that: the material of housing cap test (16) is non-magnetic.
9. housing cap test according to claim 7 (16), is characterized in that: the material of housing cap test (16) is stainless steel 304, aluminium alloy, the cast iron of weak magnetic conduction.
10. housing cap test according to claim 7 (16), is characterized in that: the thickness of housing cap test (16) is respectively tetra-kinds of 1mm, 1.5mm, 2mm, 3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410062617.6A CN103776495B (en) | 2014-02-24 | 2014-02-24 | A kind of contactless gear rotational speed test experience device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410062617.6A CN103776495B (en) | 2014-02-24 | 2014-02-24 | A kind of contactless gear rotational speed test experience device |
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| CN103776495A true CN103776495A (en) | 2014-05-07 |
| CN103776495B CN103776495B (en) | 2016-08-17 |
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Cited By (3)
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| CN104166011A (en) * | 2014-09-14 | 2014-11-26 | 哈尔滨理工大学 | Device and method for measuring rotation speed of asynchronous motor by means of end ring teeth |
| CN105269405A (en) * | 2015-11-13 | 2016-01-27 | 东莞市科隆电机有限公司 | High-speed high-precision laser displacement dynamic deflection tester |
| CN110244075A (en) * | 2019-05-28 | 2019-09-17 | 南方科技大学 | A kind of gear type magnetic fluid speed probe and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166011A (en) * | 2014-09-14 | 2014-11-26 | 哈尔滨理工大学 | Device and method for measuring rotation speed of asynchronous motor by means of end ring teeth |
| CN105269405A (en) * | 2015-11-13 | 2016-01-27 | 东莞市科隆电机有限公司 | High-speed high-precision laser displacement dynamic deflection tester |
| CN110244075A (en) * | 2019-05-28 | 2019-09-17 | 南方科技大学 | A kind of gear type magnetic fluid speed probe and preparation method thereof |
| CN110244075B (en) * | 2019-05-28 | 2023-08-29 | 南方科技大学 | Gear type magnetic fluid rotating speed sensor and manufacturing method thereof |
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Effective date of registration: 20180524 Address after: 232121 east of No. 13 Road, Fengtai Economic Development Zone, Huainan, Anhui Patentee after: Huainan Zhongxing Machinery Manufacturing Co., Ltd. Address before: No. 168 Shun Geng Middle Road, Huainan, Anhui Province Patentee before: Anhui University Of Science And Technology |
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Granted publication date: 20160817 Termination date: 20190224 |