CN203083754U - Novel high frequency dynamic friction instrument - Google Patents
Novel high frequency dynamic friction instrument Download PDFInfo
- Publication number
- CN203083754U CN203083754U CN 201220595240 CN201220595240U CN203083754U CN 203083754 U CN203083754 U CN 203083754U CN 201220595240 CN201220595240 CN 201220595240 CN 201220595240 U CN201220595240 U CN 201220595240U CN 203083754 U CN203083754 U CN 203083754U
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- friction
- high frequency
- dynamic friction
- piezoelectric crystal
- frequency dynamic
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Abstract
The utility model belongs to the field of tribology, especially relates to a novel high frequency dynamic friction instrument, and solves problems that the prior art cannot measure high frequency dynamic friction force and a friction factor of a sliding friction surface when one of a friction pair vibrates in high frequency in the horizontal direction and the perpendicular direction at the same time and cannot precisely measure the friction force and the friction factor in a high frequency (larger than 1kHz) vibration status. The novel high frequency dynamic friction instrument comprises a transmission box and a bench arm, wherein the transmission box is connected with a motor and enables the motor to move vertically and horizontally; a rigid connecting piece is provided with a vertical-direction piezoelectric crystal self-excitation oscillator and a piezoelectric crystal force sensor; and a connecting screw rod is provided with a horizontal-direction piezoelectric crystal self-excitation oscillator. According to the novel high frequency dynamic friction instrument, a practical and reliable instrument device which is simple in operation is provided for measurement of high frequency friction force and friction factors and research of force characteristics o a high frequency vibration friction surface.
Description
Technical field:
The invention belongs to tribological field, particularly a kind of novel high-frequency dynamic friction instrument.
Background technology:
When two objects slide mutually, two articles can vibrate under certain normal pressure and sliding velocity, i.e. friction causes vibration.Traditional frictiograph is because of being subjected to the influence of structure or sensor, usually can only measure friction force and friction factor when two articles is stable to rub, dynamic friction when being difficult to measure or survey quasi-friction pair or one of them dither, thus be difficult to determine the friction factor between the object surface of contact and other frictional behaviour under this state.Up to the present, still there is not device can measure one of friction pair at level and vertical both direction the high frequency dynamic friction and the friction factor on sliding friction surface during dither simultaneously.In existing frictiograph, the instrument that has can only be measured friction force and the friction factor when at the uniform velocity sliding between the friction pair; The instrument that has is subjected to the restriction of physical construction, can only measure low frequency dynamic friction (less than 1kHz) and but can't accurately measure friction force and friction factor under high frequency (greater than the 1kHz) vibrational state.
The utility model content:
For high frequency dynamic friction and the friction factor that can't measure one of friction pair sliding friction surface during dither that solves that prior art exists in level and vertical both direction while, accurately measure friction force and friction factor problem under high frequency (greater than the 1kHz) vibrational state, the utility model provides a kind of novel high-frequency dynamic friction instrument.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of novel high-frequency dynamic friction instrument is provided, comprise transmission case and gantry arm, transmission case links to each other with motor, transmission case can make motor carry out vertically and move horizontally, vertical piezoelectric crystal self-excitation oscillator and piezoelectric crystal force transducer are arranged on the rigid connector, horizontal direction piezoelectric crystal self-excitation oscillator is arranged on the connecting screw rod.
This novel high-frequency dynamic friction instrument is by the height of vertical direction moving handle adjustment motor, and the horizontal direction moving handle can make transmission case move horizontally, and is linked to each other by flexible member between gantry arm and the support, reduces vibration.
The horizontal direction piezoelectric crystal self-excitation oscillator of this novel high-frequency dynamic friction instrument and vertical direction piezoelectric crystal self-excitation oscillator are respectively to be connected and fixed by connecting screw rod and rigid connector and gantry arm.
The piezoelectric crystal force transducer of this novel high-frequency dynamic friction instrument links to each other with gantry arm respectively with connecting screw rod by rigid connector and is fixed, and measures normal pressure and friction force when work.Connecting screw rod links together by hold-down nut and gantry arm, is convenient to installation and removal.
We develop this kind of high frequency dynamic friction instrument by each parts of frictiograph being carried out model analysis, and this instruments design is simple and practical reliable.This a frictiograph that can work under the high-speed high frequency vibrational state is based on finite element modal analysis and develops, its objective is in order to measure high frequency dynamic friction and friction factor, assess the mechanical characteristic on the dynamic sliding contact of high frequency surface, and can be used to study the mechanism of the high frequency frictional noise that causes by friction.
The beneficial effects of the utility model are: overcome traditional frictiograph device and can only measure the deficiency that at the uniform velocity low frequency dynamic friction and friction factor but can't be measured high frequency dynamic friction and friction factor, for measuring the mechanical characteristic on high frequency dynamic friction and friction factor and research high frequency vibration friction surface, provide a kind of easy and simple to handle, the practical and reliable instrument and equipment.
Description of drawings:
Fig. 1 is the front view of two-dimensional structure synoptic diagram of the present utility model.
Fig. 2 is the left view of two-dimensional structure synoptic diagram of the present utility model.
Fig. 3 is the right view of two-dimensional structure synoptic diagram of the present utility model.
Fig. 4 is the vertical view of the two-dimensional structure synoptic diagram of utility model.
Fig. 5 is the local gantry arm two-dimensional representation of utility model.
Among the figure, 1. test-bed, 2. transmission case, 3. motor, 4. first kind of rotating disk that friction material is made, 5. second kind of rotating disk that friction material is made, 6. rigid connector, 7. gantry arm, 8. horizontal direction piezoelectric crystal self-excitation oscillator, 9. connecting screw rod, 10. vertical direction piezoelectric crystal self-excitation oscillator, 11. piezoelectric crystal force transducers, 12. friction pin, 13. supports, 14. horizontal direction moving handles, 15. the vertical direction moving handle, 16. hold-down nuts, 17. flexible members.
Embodiment:
To consult accompanying drawing now and describe the utility model in detail.Support (13) and gantry arm (7) are installed on the test-bed of the present utility model (1), have elastic component between support (13) and gantry arm (7) (17), transmission case (2) is fixed on the test-bed (1), motor (3) is installed on the transmission case (2), the rotating disk (5) that the rotating disk (4) that the upper end of motor (3) and first kind of friction material are made and second kind of friction material are made connects with nut, rotating disk and another friction pin (12) contact friction during work, friction pin (12) connects with piezoelectric crystal force transducer (11), piezoelectric crystal force transducer (11) links to each other with gantry arm (7) respectively with connecting screw rod (9) by rigid connector (6) and is fixed, and measures normal pressure and friction force when work.Vertical direction piezoelectric crystal self-excitation oscillator (10) is housed on the rigid connector (6), horizontal direction piezoelectric crystal self-excitation oscillator (8) is housed on the connecting screw rod (9).Horizontal direction piezoelectric crystal self-excitation oscillator (8) and vertical direction piezoelectric crystal self-excitation oscillator (10) dismounting and change as required wherein.Connecting screw rod (9) is to be threaded with gantry arm (7), and is fixing by hold-down nut (16).The present invention can realize the level of workbench and the vertically motion of both direction in the course of the work, realize that by horizontal direction turning handle (14) and vertical direction moving handle (15) horizontal direction and the vertical direction of transmission case (2) move, thereby can change the contact position of friction pin and frictional disk, change friction pin, and change normal pressure.
Claims (5)
1. novel high-frequency dynamic friction instrument, it is characterized in that: comprise transmission case (2) and gantry arm (7), transmission case (2) links to each other with motor (3), transmission case (2) can make motor (3) carry out vertically and move horizontally, vertical direction piezoelectric crystal self-excitation oscillator (10) and piezoelectric crystal force transducer (11) are arranged on the rigid connector (6), horizontal direction piezoelectric crystal self-excitation oscillator (8) is arranged on the connecting screw rod (9).
2. novel high-frequency dynamic friction instrument as claimed in claim 1 is characterized in that: by the height of vertical direction moving handle (15) adjustment motor (3), horizontal direction moving handle (14) moves horizontally transmission case (2).
3. novel high-frequency dynamic friction instrument as claimed in claim 1 is characterized in that: horizontal direction piezoelectric crystal self-excitation oscillator (8) and vertical direction piezoelectric crystal self-excitation oscillator (10) are respectively to be connected and fixed with gantry arm (7) by connecting screw rod (9) and rigid connector (6).
4. novel high-frequency dynamic friction instrument as claimed in claim 1 is characterized in that: connecting screw rod (9) is connected with gantry arm (7) by hold-down nut (16), is convenient to installation and removal.
5. novel high-frequency dynamic friction instrument as claimed in claim 1 is characterized in that: linked to each other by flexible member (17) between gantry arm (7) and the support (13), reduce vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595240 CN203083754U (en) | 2012-11-03 | 2012-11-03 | Novel high frequency dynamic friction instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595240 CN203083754U (en) | 2012-11-03 | 2012-11-03 | Novel high frequency dynamic friction instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083754U true CN203083754U (en) | 2013-07-24 |
Family
ID=48829579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220595240 Expired - Fee Related CN203083754U (en) | 2012-11-03 | 2012-11-03 | Novel high frequency dynamic friction instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203083754U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037069A (en) * | 2017-11-14 | 2018-05-15 | 洛阳理工学院 | One kind pin disk frictional testing machine |
| CN108180976A (en) * | 2017-12-22 | 2018-06-19 | 武汉理工大学 | The method that vibration state and friction coefficient based on fiber grating measure simultaneously |
| CN108663313A (en) * | 2018-06-13 | 2018-10-16 | 北京朝阳高科应用技术研究所有限公司 | Host apparatus for testing fuels lubricity |
| CN110186816A (en) * | 2019-05-16 | 2019-08-30 | 中国地质大学（武汉） | A kind of experimental rig for testing granular materials micro kinetics characteristic |
-
2012
- 2012-11-03 CN CN 201220595240 patent/CN203083754U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037069A (en) * | 2017-11-14 | 2018-05-15 | 洛阳理工学院 | One kind pin disk frictional testing machine |
| CN108037069B (en) * | 2017-11-14 | 2024-02-20 | 洛阳理工学院 | Pin disc friction testing machine |
| CN108180976A (en) * | 2017-12-22 | 2018-06-19 | 武汉理工大学 | The method that vibration state and friction coefficient based on fiber grating measure simultaneously |
| CN108663313A (en) * | 2018-06-13 | 2018-10-16 | 北京朝阳高科应用技术研究所有限公司 | Host apparatus for testing fuels lubricity |
| CN110186816A (en) * | 2019-05-16 | 2019-08-30 | 中国地质大学（武汉） | A kind of experimental rig for testing granular materials micro kinetics characteristic |
| CN110186816B (en) * | 2019-05-16 | 2024-02-27 | 中国地质大学（武汉） | Test device for testing microscopic dynamics characteristics of granular materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: ZHAO RUTAO WANG HAOMIN Effective date: 20130807 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130807 Address after: 264209 School of automotive engineering, Harbin Institute of Technology (Weihai), 2 West Wenhua Road, Shandong, Weihai Patentee after: Wang Shuwen Address before: 264209 School of automotive engineering, Harbin Institute of Technology (Weihai), 2 West Wenhua Road, Shandong, Weihai Patentee before: Wang Shuwen Patentee before: Zhao Rutao Patentee before: Wang Haomin |
|
| DD01 | Delivery of document by public notice |
Addressee: Wang Shuwen Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20141103 |
|
| EXPY | Termination of patent right or utility model |