CN203365097U - Friction tester - Google Patents
Friction tester Download PDFInfo
- Publication number
- CN203365097U CN203365097U CN 201320338349 CN201320338349U CN203365097U CN 203365097 U CN203365097 U CN 203365097U CN 201320338349 CN201320338349 CN 201320338349 CN 201320338349 U CN201320338349 U CN 201320338349U CN 203365097 U CN203365097 U CN 203365097U
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- transverse slat
- vibration
- semi
- girder
- transverse plate
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Abstract
A friction tester belongs to the field of mechanics testing equipment. The friction tester comprises a support frame, a cantilever beam, a transverse plate, a vibration exciter, a controller, horizontal tension testing machines, a pressure sensor and vibration testers. The support frame supports the horizontally disposed transverse plate. The controller is connected to the vibration exciter. The vibration exciter is disposed on the transverse plate. A vibration tester is disposed on the transverse plate. The horizontal tension testing machine is disposed above the transverse plate. A clamping plate holder movable horizontally on beams is disposed on the beams between the horizontal tension testing machines. A clamping plate holder is fixed at one end of the cantilever beam while the other end of the cantilever beam is a free end. The transverse plate is in contact with the free end of the cantilever beam to form a contact point which is connected to the free end of the cantilever beam through pressure sensor. According to the utility model, the surface-to-surface friction is changed into the point-to-surface friction and the change in pressure of the contact point is accurately measured, so the accuracy of the measurement results in the experiment is increased.
Description
Technical field
The utility model relates to the measurement mechanism of vibration and friction force, is the tester of measuring vibrations and friction force relation, belongs to the mechanical testing instrument field.
Background technology
Vibration can affect friction force more significantly, and under the friction pair of different materials and different vibration condition, the situation of change of friction force is not identical.Now, the device of measuring change in friction force under different vibration conditions is mostly by the friction of face and face, and the pressure between the friction pair that vibration is caused changes ignorance to some extent.
Due to when face contacts with face, surface of contact inevitably has out-of-flatness, so the Vibration Condition of each point of surface of contact and friction force are not identical under vibration condition, can only describe the impact of vibration on friction force by the mean value of whole friction, data measured can not be embodied in certain a bit upper vibration concrete impact on friction force exactly.This device is changed into point-to-area vibration by the vibration of face and face, makes measurement result can be embodied in accurately the concrete impact of the vibration of this point on the friction force size.In addition, the variation of pressure between face and face when the current less consideration of face contact experimental provision contacts, and the pressure between friction pair changes on the friction force impact greatly when vibration, the pressure variation that this device can accurately be measured contact position when testing by the pressure transducer be arranged between contact point and semi-girder.
The utility model content
For the influence factor of measuring vibrations to the friction force size more accurately, the utility model provides a kind of friction testing instrument, this tester becomes some the friction with face by the friction of face and face, and the pressure of measuring accurately contact point changes, thus the accuracy of measurement result while having increased experiment.
The utility model is that the technical scheme that its technical matters of solution is taked is: the friction testing instrument is characterized in that comprising: bracing frame, semi-girder, transverse slat, vibrator, controller, horizontal pull testing machine, pressure transducer, vibration measurement instrument; The transverse slat that wherein the bracing frame support level is placed, controller connects vibrator, and vibrator is arranged on transverse slat; Transverse slat is provided with vibration measurement instrument; The transverse slat top is the horizontal pull testing machine, and the crossbeam between the horizontal pull testing machine is provided with the clamping plate folder that can move horizontally on crossbeam, the clamping end of determining semi-girder of clamping plate; The other end of semi-girder is free end; Transverse slat contacts with the semi-girder free end and forms contact point, and contact point is connected with the semi-girder free end by pressure transducer.
Wherein bracing frame support transverse slat makes it reach suitable height.The semi-girder stiff end presss from both sides with the horizontal pull testing machine and is connected by clamping plate.Contact point is connected with the semi-girder free end by pressure transducer, and pressure transducer can accurately be measured the pressure between contact point and transverse slat.Transverse slat, by horizontal positioned, is laid vibrator and is close to transverse slat below transverse slat.Vibrator is connected with the controller on being placed on experiment table, and controller can make vibrator produce controlled, as can a to survey vibration.At contact position, vibration measurement instrument is arranged, can accurately test the vibration condition of transverse slat.Contact point is very little, and size is micron level, can be considered the set of limited friction pair.
When experiment,
It is moving that 1, but controller gives vibration measuring of vibrator, vibrator passes to transverse slat by vibration, and meanwhile semi-girder drives contact point and do the concrete Vibration Condition that linear uniform motion and vibration-detecting instrument detect transverse slat accurately under the pulling of horizontal pull testing machine on transverse slat;
2, because semi-girder is done at the uniform velocity tangential movement, and horizontal direction except the pulling force of friction force and puller system without other power, the numerical value that the horizontal pull testing machine records is exactly the friction force of contact point, pressure transducer is measured the pressure of contact point with respect to transverse slat, and vibration measurement instrument is measured the design parameter of vibration.
3, analyze the delta data of different vibration condition downforce and friction force, can obtain the concrete influence factor of vibration to friction force.
The beneficial effects of the utility model are that in experimental provision, contact point is very little, belongs to micron level, can see the set of limited friction pair as.Transverse slat is made to be screwed by support, can be replaced by by the mode of parbuckle screw the different transverse slat of other friction factor, or is replaced by the transverse slat of other materials.Contact point and transverse slat pressure can be measured accurately, have greatly increased the accuracy while measuring.
The accompanying drawing explanation:
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the utility model embodiment front view.
Fig. 2 is the utility model embodiment vertical view.
1. bracing frames in figure, 2. semi-girder, 3. contact point, 4. transverse slat, 5. vibrator, 6. controller, 7. horizontal pull testing machine, 8. pressure transducer, 9. vibration measurement instrument, 10. crossbeam, 11. clamping plate folders
Embodiment
In the embodiment shown in Fig. 1 and Fig. 2, controller 6 sends to 5 one controlled, known accumulation signals of vibrator, and by self-vibration band motion plate 4 vibrations of vibrator, on transverse slat 4, the vibration measurement instrument 9 on contact point 3 sides is measured the design parameter of vibration.While horizontal pull testing machine 7 presss from both sides 11 drive semi-girders 2 by clamping plate does tangential movement, and the contact point 3 be connected by pressure transducer 8 with semi-girder 2 is moved on transverse slat.Horizontal pull testing machine 7 can be measured the friction force size of semi-girder 2 when motion.Pressure transducer 8 can be measured the pressure of 2 pairs of transverse slats 4 of semi-girder.
Claims (1)
1. the friction testing instrument, is characterized in that comprising: bracing frame, semi-girder, transverse slat, vibrator, controller, horizontal pull testing machine, pressure transducer, vibration measurement instrument; The transverse slat that wherein the bracing frame support level is placed, controller connects vibrator, and vibrator is arranged on transverse slat; Transverse slat is provided with vibration measurement instrument; The transverse slat top is the horizontal pull testing machine, and the crossbeam between the horizontal pull testing machine is provided with the clamping plate folder that can move horizontally on crossbeam, the clamping end of determining semi-girder of clamping plate; The other end of semi-girder is free end; Transverse slat contacts with the semi-girder free end and forms contact point, and contact point is connected with the semi-girder free end by pressure transducer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320338349 CN203365097U (en) | 2013-06-13 | 2013-06-13 | Friction tester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320338349 CN203365097U (en) | 2013-06-13 | 2013-06-13 | Friction tester |
Publications (1)
Publication Number | Publication Date |
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CN203365097U true CN203365097U (en) | 2013-12-25 |
Family
ID=49812843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201320338349 Expired - Fee Related CN203365097U (en) | 2013-06-13 | 2013-06-13 | Friction tester |
Country Status (1)
Country | Link |
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CN (1) | CN203365097U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109470441A (en) * | 2018-12-18 | 2019-03-15 | 江西众安职业危害评价检测有限公司 | Vibration testing device |
CN112643544A (en) * | 2020-12-23 | 2021-04-13 | 南京肯迈得机床制造有限公司 | Friction force detection method for travelling mill |
-
2013
- 2013-06-13 CN CN 201320338349 patent/CN203365097U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109470441A (en) * | 2018-12-18 | 2019-03-15 | 江西众安职业危害评价检测有限公司 | Vibration testing device |
CN112643544A (en) * | 2020-12-23 | 2021-04-13 | 南京肯迈得机床制造有限公司 | Friction force detection method for travelling mill |
CN112643544B (en) * | 2020-12-23 | 2022-09-13 | 南京肯迈得机床制造有限公司 | Friction force detection method for travelling mill |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20140613 |
|
EXPY | Termination of patent right or utility model |