CN201464312U - Magnetic field control device for friction and abrasion test - Google Patents
Magnetic field control device for friction and abrasion test Download PDFInfo
- Publication number
- CN201464312U CN201464312U CN2009200891725U CN200920089172U CN201464312U CN 201464312 U CN201464312 U CN 201464312U CN 2009200891725 U CN2009200891725 U CN 2009200891725U CN 200920089172 U CN200920089172 U CN 200920089172U CN 201464312 U CN201464312 U CN 201464312U
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- magnetic field
- coil
- demagnetization
- linear bearing
- control device
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Abstract
The utility model discloses a magnetic field control device for a friction and abrasion test. The control device is composed of a magnetic field application part and a demagnetization part, wherein a loop frame (1) of the magnetic field application part is installed on a bottom board (8) through a pressing block (2) and a side rib (7), an excitation coil (6) is arranged in the loop frame and is sealed by a cover plate (3), concentric circle installation holes are arranged on the central parts of the loop frame (1), the excitation coil and the cover plate, a linear bearing (10) is located in the installation holes, a hollow shaft (9) is arranged in the linear bearing, the upper end of the linear bearing is contacted with a ring sample (5), the lower end is contacted with a hydraulic loading mechanism, the central part of a demagnetization coil (11) of the demagnetization device is provided with a demagnetization hole, and the demagnetization coil is connected with 220V alternating current voltage after being connected with a degaussing resistance (12) in series. The magnetic field application device of the utility model has simple structure, convenient control, and easy sample assembly and disassembly, the magnetic field intensity can be accurately and conveniently adjusted, and the demagnetization device has convenient operation and can effectively eliminate remanence.
Description
Technical field
The utility model belongs to the friction-wear test technical field, and what relate generally to is a kind of magnetic field control device that is used for friction-wear test.
Background technology
Along with the development of electromagnetic technique, increasing parts are on active service under the electromagnetism condition, and the influence of magnetic factor is more and more outstanding.In friction-wear test, introduce magnetic field and investigate its influence tribological property, can provide theoretical reference and foundation for tribology Design.At present, main in the test by solenoid, permanent magnet and electromagnet generation magnetic field.The shortcoming that solenoid produces magnetic field is that conduction time is long or the excessive coil heating that causes of electric current is serious; Permanent magnet changes magnetic field intensity by the distance of regulating magnet and sample, but it is not accurate enough to regulate magnetic field; Electromagnet manufacturing process complexity, operation the time have electromagnetic noise, coil power consumption is big and the life-span short; Therefore, the magnetic field production method is difficult to satisfy testing requirements at present.In addition, test button is finished test in magnetic field after, itself has remanent magnetism, the microcosmic testing result that remanent magnetism influence test is follow-up and the accuracy of analysis.Therefore, seek a kind of be applicable to friction-wear test, easy to operate, that adjustable magnetic field control device and demagnetizer are stablized in magnetic field is extremely urgent.
Summary of the invention
For overcoming the problem of above-mentioned existence, the utility model provides a kind of magnetic field control device that is used for friction-wear test.Its excitation unit is simple in structure, control is easy, and it is accurate, convenient that magnetic field intensity is regulated; Demagnetizer is easy and simple to handle, can eliminate the remanent magnetism of sample effectively, reaches the purpose that does not influence follow-up test and disturb the micro-analysis result.
To achieve these goals, the technical scheme that the utility model is taked is: it is made of magnetic field applying portion and demagnetization part, the coil former of magnetic field applying portion is installed on the base plate by briquetting and side rib, field coil is arranged in the coil former by cover plate for sealing, the centre of coil former, field coil and cover plate is provided with mounting hole and each hole is concentric, linear bearing is positioned at mounting hole, tubular shaft is arranged in the linear bearing, the upper end of linear bearing contacts with the ring sample, and the lower end contacts with hydraulic loaded mechanism; The centre of the degaussion coil of demagnetizer has the demagnetization hole, degaussion coil with connect the 220V alternating voltage after field-discharge resistance is connected.
The utility model utilizes magnetic field applicator to change magnetic field intensity by control magnetic excitation coil voltage, realize the simple and easy control in magnetic field, utilize field-discharge resistance, be used for eliminating remanent magnetism by electromagnetic oscillation, effectively reduce the interference of remanent magnetism, reach the purpose of accurate analysis the result.It has following characteristics: 1 magnetic field applicator is simple in structure, control easy, sample be easy to loading and unloading; It is accurate, convenient that 2 magnetic field intensitys are regulated; 3 demagnetizers are easy and simple to handle, can eliminate remanent magnetism effectively.
Description of drawings
Fig. 1 is the structural representation of the utility model magnetic field applicator.
Fig. 2 is the structural representation of the utility model demagnetizer.
Among the figure, 1-coil former 2-briquetting 3-cover plate 4-pin sample 5-ring sample 6-field coil 7-side rib 8-base plate 9-tubular shaft 10-linear bearing 11-degaussion coil 12-field-discharge resistance 13-switch.
Embodiment
In conjunction with the accompanying drawings, it is as follows to provide embodiment of the present utility model:
The utility model comprises magnetic field applying portion and demagnetization part.As shown in Figure 1, the magnetic field applying portion mainly is made up of field coil 6, coil former 1, linear bearing 10, tubular shaft 9, side rib 7, briquetting 2 etc., coil former 1 adopts aluminium to make, the advantage that utilize aluminium to be difficult to magnetize, thermal diffusivity is good, and the heat that impels coil to produce sheds fast.Coil former 1 is installed on the base plate 8, by bolt briquetting 2 is fixed on the side rib 7, side rib 7 is used for connecting briquetting 2 and base plate 8), field coil 6 is arranged in the coil former 1 by cover plate 3 sealings, the centre of coil former 1, field coil 6 and cover plate 3 is provided with mounting hole and each hole is concentric, linear bearing 10 is positioned at mounting hole, and tubular shaft 9 is arranged in the linear bearing 10.Member around the upper and lower end parts of linear bearing 10 is all stretched out, to guarantee that pin sample 4 upper ends in the linear bearing 10 contact with ring sample 5, the lower end contacts with hydraulic loaded mechanism, tubular shaft 9 and pin sample 4 move up and down simultaneously, in the middle of the base plate 8 is hollow, applies pressure on the pin sample 4 so that hydraulic mechanism passes it.During use, with clean, sample pin sample 4 after the demagnetization packs into after packing in the tubular shaft 9 in the linear bearing 10 in the lump, inserts in the mounting hole of coil former 1 and coil 6 again, it is fixing by briquetting 2 with the position of cover plate 3 and side rib 7 to adjust coil 1.Utilize transformer and rectifier cell control field voltage to make the field coil energising produce the rubbing surface of the action of a magnetic field in pin sample 4 and ring sample 5.Ring sample 5 is installed on the main shaft of friction wear testing machine, rotates with one on main shaft.Pin sample 4 and ring sample 5 are a pair of friction pairs, the vertical and rubbing surface of the magnetic field magnetic line of generation.
As shown in Figure 2, demagnetizer mainly is made up of degaussion coil 11 and field-discharge resistance 12, the centre of degaussion coil 11 (hole)---A position is the demagnetization position of sample pin sample 4 or ring sample 5, degaussion coil 11 with connect the 220V alternating voltage after field-discharge resistance 12 is connected.During use, with applying the sample pin sample 4 in magnetic field or the A position that ring sample 5 is placed on degaussion coil 11, open switch 13, field-discharge resistance energising back temperature raises, thereby the very fast increase of resistance makes current attenuation, and the oscillating magnetic field that degaussion coil 11 is sharply decayed realizes demagnetization.
Magnetic field applicator and demagnetizer are two independent parts, apply magnetic field when doing experiment, and test is finished, and sample need demagnetize, and excitation unit and demagnetizer are used in friction-wear test.Also can use separately in other occasions.
Claims (2)
1. magnetic field control device that is used for friction-wear test, it is characterized in that: it is made of magnetic field applying portion and demagnetization part, the coil former of magnetic field applying portion (1) is installed on the base plate (8) by briquetting (2) and side rib (7), field coil (6) is arranged in the coil former and is sealed by cover plate (3), coil former (1), the centre of field coil (6) and cover plate (3) is provided with mounting hole and each hole is concentric, linear bearing (10) is positioned at mounting hole, tubular shaft (9) is arranged in the linear bearing, the upper end of linear bearing contacts with ring sample (5), and the lower end contacts with hydraulic loaded mechanism; The centre of the degaussion coil of demagnetizer (11) has the demagnetization hole, degaussion coil (11) with connect the 220V alternating voltage after field-discharge resistance (12) is connected.
2. the magnetic field control device that is used for friction-wear test according to claim 1, it is characterized in that: described coil former (1) is installed on the base plate (8), by bolt briquetting (2) is fixed on the side rib (7), side rib (7) is used for connecting briquetting (2) and base plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200891725U CN201464312U (en) | 2009-03-25 | 2009-03-25 | Magnetic field control device for friction and abrasion test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200891725U CN201464312U (en) | 2009-03-25 | 2009-03-25 | Magnetic field control device for friction and abrasion test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201464312U true CN201464312U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200891725U Expired - Fee Related CN201464312U (en) | 2009-03-25 | 2009-03-25 | Magnetic field control device for friction and abrasion test |
Country Status (1)
| Country | Link |
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| CN (1) | CN201464312U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359917A (en) * | 2011-07-18 | 2012-02-22 | 中国人民解放军后勤工程学院 | Device for detecting frictional wear characteristics of magnetorheological fluid under magnetic field |
| CN102636429A (en) * | 2012-05-02 | 2012-08-15 | 中国矿业大学 | Friction control method of magnetic micro-nano texture surface and device |
| CN102866108A (en) * | 2012-09-03 | 2013-01-09 | 中国矿业大学 | Frictional disk pair test apparatus capable of adjusting magnetic field and method |
| CN103499488A (en) * | 2013-10-16 | 2014-01-08 | 河南科技大学 | Hopkinson pressure bar added with magnetic field control device |
| CN107063908A (en) * | 2017-04-11 | 2017-08-18 | 西南交通大学 | A kind of magnetic environment Tribological Test device in controllable horizontal direction magnetic field |
| CN112161185A (en) * | 2020-09-21 | 2021-01-01 | 安徽工程大学 | Friction pair magnetic field intensity fine adjustment device for magnetic fluid lubrication and use method thereof |
| CN114062246A (en) * | 2021-11-22 | 2022-02-18 | 安徽工程大学 | Friction-wear rotation experimental device for magnetic fluid lubrication and use method thereof |
-
2009
- 2009-03-25 CN CN2009200891725U patent/CN201464312U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359917A (en) * | 2011-07-18 | 2012-02-22 | 中国人民解放军后勤工程学院 | Device for detecting frictional wear characteristics of magnetorheological fluid under magnetic field |
| CN102636429A (en) * | 2012-05-02 | 2012-08-15 | 中国矿业大学 | Friction control method of magnetic micro-nano texture surface and device |
| CN102866108A (en) * | 2012-09-03 | 2013-01-09 | 中国矿业大学 | Frictional disk pair test apparatus capable of adjusting magnetic field and method |
| CN103499488A (en) * | 2013-10-16 | 2014-01-08 | 河南科技大学 | Hopkinson pressure bar added with magnetic field control device |
| CN103499488B (en) * | 2013-10-16 | 2016-04-20 | 河南科技大学 | A kind of Hopkinson pressure bar that with the addition of magnetic field control device |
| CN107063908A (en) * | 2017-04-11 | 2017-08-18 | 西南交通大学 | A kind of magnetic environment Tribological Test device in controllable horizontal direction magnetic field |
| CN107063908B (en) * | 2017-04-11 | 2019-09-17 | 西南交通大学 | A kind of magnetic environment tribological test device in controllable horizontal direction magnetic field |
| CN112161185A (en) * | 2020-09-21 | 2021-01-01 | 安徽工程大学 | Friction pair magnetic field intensity fine adjustment device for magnetic fluid lubrication and use method thereof |
| CN114062246A (en) * | 2021-11-22 | 2022-02-18 | 安徽工程大学 | Friction-wear rotation experimental device for magnetic fluid lubrication and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110325 |