CN103743643A - Shaft sleeve abrasion testing device under special gas atmosphere - Google Patents
Shaft sleeve abrasion testing device under special gas atmosphere Download PDFInfo
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- CN103743643A CN103743643A CN201310740354.5A CN201310740354A CN103743643A CN 103743643 A CN103743643 A CN 103743643A CN 201310740354 A CN201310740354 A CN 201310740354A CN 103743643 A CN103743643 A CN 103743643A
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- gas atmosphere
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- special gas
- loading
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Abstract
The invention discloses a shaft sleeve abrasion testing device under a special gas atmosphere. The shaft sleeve abrasion testing device comprises a power transmission part, a sealing part, a loading part, a test piece clamping part and a test processing part according to functions. The device disclosed by the invention can realize constant loading; a manner of combining lever loading and electromagnetic loading is used for carrying out radial loading and a rolling guide rail is used for reducing the radial friction force in a loading process; the influences of an outer friction force are reduced to be the lowest through cooperation of a lower guide rail and an upper guide rail which roll horizontally with a conical roller bearing. Two pressure sensors are arranged so as to realize real-time control display of the load and the friction force. In addition, the rotary speed of a shaft to be tested in the test can be automatically and steplessly adjusted; the loading force and the friction force can be automatically adjusted and accurately measured; a shaft sleeve test piece of the device is convenient to detach and the abrasion amount is convenient to measure.
Description
Technical field
The invention belongs to friction-wear test equipment technical field, for the performance test to axle and axle sleeve wearing and tearing and friction force under special gas atmosphere, be specifically related to the axle sleeve abrasion test device under a kind of special gas atmosphere.
Background technology
Most plant equipment is to be all operated in atmospheric environment, and because atmospheric oxygen content is higher, surface of friction pair easily forms oxide film, and oxide film plays certain protective effect to friction pair in process of friction and wear.And under special atmosphere environment, oxygen content is few, surface of friction pair is difficult to form oxide film, and at this moment the Frotteurism of friction pair exists very big difference compared with in atmosphere.
And in actual production the control system of for example primary cut-out, for the needs of arc extinguishing, just need in SF6 atmosphere, work.Therefore need to develop the device that carries out friction-wear test under special gas atmosphere, carry out the friction and wear behavior of research work train of mechanism kinematic pair in this type of special atmosphere environment.
The friction pair of existing rubbing wear device is mostly pin disc type or dish disc type, and friction pair in the actual plant equipment of using is all much axle sleeve type, friction pair research of employing dish disc type or pin disc type can not be simulated actual condition well, and result and the actual condition therefore measured have larger difference.
Current existing axle sleeve type frictional wear test device generally can only be worked under atmospheric environment, and it loads, automaticity of measurement is not high, make measurement result not accurate enough.
Summary of the invention
The object of this invention is to provide the axle sleeve abrasion test device under a kind of special gas atmosphere, the equipment that has solved prior art can only be worked under atmospheric environment, the problem that automaticity is not high, result is not accurate enough that loads, measures.
The technical solution adopted in the present invention is, axle sleeve abrasion test device under a kind of special gas atmosphere, comprise base, in base, be fixed with motor, on base table top, be fixed with lower carriage, on lower carriage table top, be fixed with lower shoe, at lower shoe upper surface, be fixed with upper bracket, on upper bracket table top, be fixed with upper plate
At upper plate upper surface, be provided with a pair of lower guideway, lower guideway is upwards supported with a pair of upper rail by sliding block, and upper rail and lower guideway along continuous straight runs layering square crossing arrange, and upper rail is upwards supported with supporting plate by top shoe; The center of splint upper surface is provided with taper roll bearing, at the inner ring of taper roll bearing, fixture is installed;
The inner ring of fixture is for mounting clip sleeve test specimen, and in cover test specimen inner circle, for socked shaft test specimen, axle test specimen is connected with gear train downwards; In fixture outer ring, be fixed with dynamometry piece, pressure transducer one is installed on supporting plate;
On upper plate, be fixedly installed in addition outer support and interior bearing, on outer support, be installed with a utmost point of electromagnet, in the upper end of interior bearing, be supported with the lever that loads use, lever one end is installed with another utmost point of electromagnet, and the lever other end is provided with pressure transducer two;
At lower shoe upper surface, along upper bracket, outer support and interior bearing periphery, be provided with seal closure, on seal closure wall, be communicated with respectively gas filling valve, air release and pressure gauge.
Axle sleeve abrasion test device under special gas atmosphere of the present invention, its feature is also:
Sliding block and top shoe bottom are provided with rolling body.
Seal closure upper surface center has view window.
The surface of contact of view window and seal closure upper surface is provided with sealing gasket, and the surface of contact of seal closure and lower shoe is provided with pad, and lower shoe has cable outlet downwards.
Fixture is set to conical structure, between fixture and cover test specimen, adopts normal cone to be connected.
Gear train comprises upper coupling, transmission shaft, lower coupler, power output shaft and motor downwards successively, and transmission shaft outer round surface is set with seal assembly, and the upper surface of seal assembly housing is fixedly connected with lower shoe.
The motive seal of seal assembly adopts magnet fluid sealing.
Each electric component is all connected with control gear, control gear and above-mentioned electric component feedback link, and control gear is finally connected with computing machine.
The invention has the beneficial effects as follows 1) can provide a special atmosphere to friction pair, for simulating the duty at special gas atmosphere lower shaft, cover friction pair.2) adopt electromagnetism loading, therefore can realize the continuous loading of load and keep the constant of load, be convenient to robotization control.3) adopted taper roll bearing and layer rolling guide rail to reduce the impact of corresponding site friction force, measurement result is more accurate.4) motor speed is adjustable, can measure friction force under the different rotating speeds Changing Pattern with added load.5) by the size of computer real-time monitoring friction force and the size of friction factor.
Accompanying drawing explanation
Fig. 1 is the structural representation of axle sleeve abrasion test device of the present invention;
Fig. 2 is the A-A cut-open view in Fig. 1;
Fig. 3 is the structure enlarged diagram of the loading clamping part in apparatus of the present invention.
In figure, 1. base, 2. motor, 3. seal assembly, 4. lower shoe, 5. lower carriage, 6. upper bracket, 7. upper plate, 8. gas filling valve, 9. lower guideway, 10. sliding block, 11. top shoes, 12. supporting plates, 13. bolts, 14. briquettings, 15. taper roll bearings, 16. dynamometry pieces, 17. pressure transducers one, 18. fixtures, 19. pressure gauges, 20. cover test specimens, 21. view windows, 22. sealing gaskets, 23. air releases, 24. pressure transducers two, 25. electromagnet, 26. outer supports, 27. interior bearings, 28. upper rails, 29. seal closures, 30. axle test specimens, 31. pads, 32. cable outlets, 33. upper couplings, 34. transmission shafts, 35. lower couplers, 36. power output shaft, 37. levers, 38. cushion blocks.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
With reference to Fig. 1, Fig. 2, Fig. 3, the structure of apparatus of the present invention is, comprise a base being fixedly installed 1, in base 1 framework, be installed with motor 2, on base 1 table top, be installed with lower carriage 5, on lower carriage 5 table tops, be installed with lower shoe 4, at lower shoe 4 upper surfaces, be installed with upper bracket 6, on upper bracket 6 table tops, be installed with upper plate 7
At upper plate 7 upper surfaces, be provided with a pair of lower guideway 9, lower guideway 9 is upwards supported with a pair of upper rail 28 by sliding block 10, upper rail 28 arranges with lower guideway 9 along continuous straight runs layering square crossings, upper rail 28 is upwards supported with supporting plate 12 by top shoe 11, between supporting plate 12 and top shoe 11, by briquetting 14, cushion block 38 and bolt 13, be fixedly connected with, wherein, sliding block 10 and top shoe 11 bottoms are provided with rolling body, by rolling body, realize respectively moving horizontally separately; The center of supporting plate 12 upper surfaces is provided with taper roll bearing 15, at the inner ring of taper roll bearing 15, fixture 18 is installed, and the inner ring of fixture 18 is for mounting clip sleeve test specimen 20(experimental subjects), overlap in test specimen 20 inner circles for socked shaft test specimen 30; In fixture 18 outer rings, fixing (welding) has dynamometry piece 16, and pressure transducer 1 is installed on supporting plate 12;
On upper plate 7, be fixedly installed in addition outer support 26 and interior bearing 27, on outer support 26, be installed with a utmost point of electromagnet 25, in the upper end of interior bearing 27, be supported with the lever 37 that loads use, lever 37 one end are installed with another utmost point of electromagnet 25, lever 37 other ends pressure transducer 2 24 that has been installed in series;
At lower shoe 4 upper surfaces, along upper bracket 6 peripheries, be provided with seal closure 29, on seal closure 29 walls, be communicated with respectively gas filling valve 8, air release 23 and pressure gauge 19, seal closure 29 upper surface centers have view window 21, view window 21 is provided with sealing gasket 22 with the surface of contact of seal closure 29 upper surfaces, seal closure 29 is provided with pad 31 with the surface of contact of lower shoe 4, and pad 31 adopts polytetrafluoroethylmaterial material to realize static seal; Lower shoe 4 has cable outlet 32 downwards, and for the external cable tray of each electrical equipment of seal closure 29 inner chambers, the same polytetrafluoroethylmaterial material that adopts of this cable outlet 32 forms static seal;
On lower guideway 9 and upper rail 28, lower leaf and center line are orthogonal, and the center that this double-layer guide rail structure set-up mode can free adjusting sleeve test specimen 20, is convenient to axle sleeve center superposition.
Frequency-conversion and speed-regulation motor 2 provides power, by transmission shaft 34 and seal assembly 3 thereof, power is delivered in seal closure 29.The motive seal of seal assembly 3 adopts magnet fluid sealing mode, good sealing effect.
Adopt the combined load mode of electromagnet 25 and lever 37, pulling force electromagnet 25 one end being produced by lever 37 changes over the pressure of the other end to cover test specimen 20.The size of current that the suction size of electromagnet 25 can flow through electromagnet by adjusting is controlled.
The friction force F of axle test specimen 30 and cover test specimen 20 can be converted and obtain again by the product of measuring this power and the corresponding arm of force, by the dynamometry piece 16 that is arranged on the pressure transducer 1 on supporting plate 12 and be welded on fixture, coordinate the product of measuring friction force and the arm of force, then divided by the corresponding arm of force, just can obtain the friction force F of axle test specimen 30 and cover test specimen 20.The size of radial loaded power P is measured at the pressure transducer 2 24 loading on lever 37 by being installed in series, and can pass through afterwards formula
calculate friction factor, wherein F is the friction force of shaft room, and P is radial loaded power, and μ is friction factor.Two pressure transducers can be converted to electric signal by actual applied pressure, and by capture card and subsequent process circuit output display on computers.
Above-mentioned all electric components are all connected with control gear, control gear also with above-mentioned electric component (topworks) feedback link, control gear is finally connected with computing machine, shows output and operation.
From upper, the axle sleeve abrasion test device under special gas atmosphere of the present invention can be divided into motivation transfer motion part, hermetic unit, loading section, test specimen clamping part, test processes part according to function,
Motivation transfer motion part comprises motor 2, two shaft couplings, transmission shaft 34,
Hermetic unit comprises seal assembly 3, pressure gauge 19, gas filling valve 8, air release 23, cable outlet 32, the view window 21 of seal closure 29, lower shoe 4, magnetic fluid mode,
Loading section comprises electromagnet 25, outer support 26, interior bearing 27, lever 37,
Test specimen clamping part comprises fixture 18, dynamometry piece 16, taper roll bearing 15, lower guideway 9, upper rail 28, upper plate 7,
Test processes part comprises pressure transducer 1, pressure transducer 2 24, control gear, computing machine.
The principle of work of apparatus of the present invention is:
Test is filled with from gas filling valve 8 with special gas, and pressure gauge 19 is used for detecting the size of seal closure 29 interior gas pressure intensities, according to the demonstration of pressure gauge 19, judges the pressure size in seal closure 29; Open the rotating speed that motor 2 makes it to reach testing requirements, the size of the radial loaded power of the size of current control of adjustment electromagnet 25 to cover test specimen 20, loading force can show by computer screen, now just can observe by computer screen the size of loading force, rotating speed, friction force and friction factor.After reaching the wearing-in period of setting, shut down; by air release 23, the waste gas in seal closure 29 is retracted in gas bomb; to special disposal place, process; open seal closure 29; from fixture 18, unload the test specimen 20 of trapping; adopt high Accuracy Electronic Balance (select GTZ type optical balance, the 290g that weighs, sensibility reciprocal are 1/10000g) to weigh the wear extent of cover test specimen 20.Use the rubbing wear Rule that different axle sleeve test specimens can meet different materials instead.
Apparatus of the present invention can be studied the friction and wear behavior of axle sleeve friction pair under special gas atmosphere, the rate of wear of quantitative measurment shaft, cover material and friction factor.The loading of this device can realize constant load, adopt lever-loading and electromagnetism to load the mode combining and carry out radial loaded, adopt rolling guide friction force radially while reducing to load, the cooperation of lower guideway 9 and upper rail 28 and taper roll bearing 15 by horizontal rolling, has dropped to minimum by the impact of extraneous friction force.The real-time control that can realize load and friction force by two pressure transducers shows.In addition, in test, the rotating speed of tested axle can regulate by automatic stepless, and loading force and friction force can regulate and Measurement accuracy automatically, and the axle sleeve test specimen convenient disassembly of this device, is convenient to measure wear extent.Apparatus of the present invention are simple in structure, sealing effectiveness is good, principle of work is clear, and test result is accurate.
Claims (8)
1. the axle sleeve abrasion test device under a special gas atmosphere, its feature is: comprise base (1), in base (1), be fixed with motor (2), on base (1) table top, be fixed with lower carriage (5), on lower carriage (5) table top, be fixed with lower shoe (4), at lower shoe (4) upper surface, be fixed with upper bracket (6), on upper bracket (6) table top, be fixed with upper plate (7)
At upper plate (7) upper surface, be provided with a pair of lower guideway (9), lower guideway (9) is upwards supported with a pair of upper rail (28) by sliding block (10), upper rail (28) arranges with lower guideway (9) along continuous straight runs layering square crossing, and upper rail (28) is upwards supported with supporting plate (12) by top shoe (11); The center of supporting plate (12) upper surface is provided with taper roll bearing (15), at the inner ring of taper roll bearing (15), fixture (18) is installed;
The inner ring of fixture (18) is for mounting clip sleeve test specimen (20), and in cover test specimen (20) inner circle, for socked shaft test specimen (30), axle test specimen (30) is connected with gear train downwards; In fixture (18) outer ring, be fixed with dynamometry piece (16), pressure transducer one (17) is installed on supporting plate (12);
On upper plate (7), be fixedly installed in addition outer support (26) and interior bearing (27), on outer support (26), be installed with a utmost point of electromagnet (25), in the upper end of interior bearing (27), be supported with the lever (37) that loads use, lever (37) one end is installed with another utmost point of electromagnet (25), and lever (37) other end is provided with pressure transducer two (24);
At lower shoe (4) upper surface, along upper bracket (6), outer support (26) and interior bearing (27) periphery, be provided with seal closure (29), on seal closure (29) wall, be communicated with respectively gas filling valve (8), air release (23) and pressure gauge (19).
2. the axle sleeve abrasion test device under special gas atmosphere according to claim 1, its feature is: described sliding block (10) and top shoe (11) bottom are provided with rolling body.
3. the axle sleeve abrasion test device under special gas atmosphere according to claim 1, its feature is: described seal closure (29) upper surface center has view window (21).
4. the axle sleeve abrasion test device under special gas atmosphere according to claim 3, its feature is: described view window (21) is provided with sealing gasket (22) with the surface of contact of seal closure (29) upper surface, seal closure (29) is provided with pad (31) with the surface of contact of lower shoe (4), and lower shoe (4) has cable outlet (32) downwards.
5. the axle sleeve abrasion test device under special gas atmosphere according to claim 1, its feature is: described fixture (18) is set to conical structure, between fixture (18) and cover test specimen (20), adopts normal cone to be connected.
6. the axle sleeve abrasion test device under special gas atmosphere according to claim 1, its feature is: described gear train comprises upper coupling (33), transmission shaft (34), lower coupler (35), power output shaft (36) and motor (2) downwards successively, transmission shaft (34) outer round surface is set with seal assembly (3), and the upper surface of seal assembly (3) housing is fixedly connected with lower shoe (4).
7. the axle sleeve abrasion test device under special gas atmosphere according to claim 6, its feature is: the motive seal of described seal assembly (3) adopts magnet fluid sealing.
8. according to the axle sleeve abrasion test device under the special gas atmosphere described in claim 1,2,3,4,5,6 or 7, its feature is: each described electric component is all connected with control gear, control gear and above-mentioned electric component feedback link, control gear is finally connected with computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310740354.5A CN103743643B (en) | 2013-12-26 | 2013-12-26 | Axle sleeve abrasion test device under a kind of special gas atmosphere |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310740354.5A CN103743643B (en) | 2013-12-26 | 2013-12-26 | Axle sleeve abrasion test device under a kind of special gas atmosphere |
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| CN103743643A true CN103743643A (en) | 2014-04-23 |
| CN103743643B CN103743643B (en) | 2015-11-18 |
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| CN201310740354.5A Expired - Fee Related CN103743643B (en) | 2013-12-26 | 2013-12-26 | Axle sleeve abrasion test device under a kind of special gas atmosphere |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104155199A (en) * | 2014-08-25 | 2014-11-19 | 西南科技大学 | Special atmosphere flexible sealing and controlling device used for reciprocating-type friction-wear test machine |
| CN104913870A (en) * | 2015-05-05 | 2015-09-16 | 上海交通大学 | Friction measuring device and friction measuring method |
| CN106769575A (en) * | 2016-11-23 | 2017-05-31 | 西安理工大学 | A kind of experimental rig of different condition Lower shaft sleeve friction and wear behavior |
| CN108267398A (en) * | 2018-04-23 | 2018-07-10 | 西南交通大学 | A kind of rock high-speed slide friction test device and its test method |
| CN112782019A (en) * | 2020-12-30 | 2021-05-11 | 浙江工业大学 | Bearing wear test device based on vacuum tank |
| CN114739675A (en) * | 2022-05-11 | 2022-07-12 | 北京航空航天大学 | Variable-frequency electromagnetic drive roller-raceway failure principle testing device |
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| CN101393113A (en) * | 2008-11-05 | 2009-03-25 | 中国科学院力学研究所 | Device for measuring material friction action in multiatmosphere and vacuum environment |
| CN102128697A (en) * | 2010-12-15 | 2011-07-20 | 西安理工大学 | High-speed motorized spindle non-contact loading force and torque testing device and method |
| CN103163036A (en) * | 2013-03-21 | 2013-06-19 | 上海应用技术学院 | Vibration and abrasion test bench |
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2013
- 2013-12-26 CN CN201310740354.5A patent/CN103743643B/en not_active Expired - Fee Related
Patent Citations (4)
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| JP2004061341A (en) * | 2002-07-30 | 2004-02-26 | Toei Scientific Industrial Co Ltd | Abrasion tester |
| CN101393113A (en) * | 2008-11-05 | 2009-03-25 | 中国科学院力学研究所 | Device for measuring material friction action in multiatmosphere and vacuum environment |
| CN102128697A (en) * | 2010-12-15 | 2011-07-20 | 西安理工大学 | High-speed motorized spindle non-contact loading force and torque testing device and method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155199A (en) * | 2014-08-25 | 2014-11-19 | 西南科技大学 | Special atmosphere flexible sealing and controlling device used for reciprocating-type friction-wear test machine |
| CN104913870A (en) * | 2015-05-05 | 2015-09-16 | 上海交通大学 | Friction measuring device and friction measuring method |
| CN106769575A (en) * | 2016-11-23 | 2017-05-31 | 西安理工大学 | A kind of experimental rig of different condition Lower shaft sleeve friction and wear behavior |
| CN106769575B (en) * | 2016-11-23 | 2019-06-18 | 西安理工大学 | A kind of experimental rig of different condition Lower shaft sleeve friction and wear behavior |
| CN108267398A (en) * | 2018-04-23 | 2018-07-10 | 西南交通大学 | A kind of rock high-speed slide friction test device and its test method |
| CN108267398B (en) * | 2018-04-23 | 2023-09-05 | 西南交通大学 | Rock high-speed sliding friction test device and test method thereof |
| CN112782019A (en) * | 2020-12-30 | 2021-05-11 | 浙江工业大学 | Bearing wear test device based on vacuum tank |
| CN112782019B (en) * | 2020-12-30 | 2023-02-24 | 浙江工业大学 | Bearing wear test device based on vacuum tank |
| CN114739675A (en) * | 2022-05-11 | 2022-07-12 | 北京航空航天大学 | Variable-frequency electromagnetic drive roller-raceway failure principle testing device |
| CN114739675B (en) * | 2022-05-11 | 2023-05-09 | 北京航空航天大学 | Variable-frequency electromagnetic drive roller-raceway failure principle test device |
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