CN1851445A - Tensile Young's modulus measuring instrument frictionless mouable platform - Google Patents
Tensile Young's modulus measuring instrument frictionless mouable platform Download PDFInfo
- Publication number
- CN1851445A CN1851445A CN 200610020728 CN200610020728A CN1851445A CN 1851445 A CN1851445 A CN 1851445A CN 200610020728 CN200610020728 CN 200610020728 CN 200610020728 A CN200610020728 A CN 200610020728A CN 1851445 A CN1851445 A CN 1851445A
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- platform
- pad
- movable platform
- optical lever
- mouable
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a stretching Yang modulus meter zero-friction active platform that is formed by optical level shoe plate, active platform and batten. The active platform is set on the optical level shoe plate, and the active clip head is set in the axial canal. The diameter of axial canal is 10-15mm larger that the outer diameter of the active clipping head, and only 1-2mm larger than the active clipping head. The batten is set on the active platform, and is connected to optical level shoe plate by two nuts. Adjusting the base nut of the adjusting instrument to make the clipping head discontact to optical level shoe plate axial canal wall, and adjusting the active platform and the clipping head, and fixing the active platform on the optical level shoe plate by the two nuts, the active clipping head would not have friction and it is easy to operate.
Description
Affiliated technical field:
The present invention relates to a kind of tensile Young's modulus measuring instrument frictionless mouable platform
Background technology:
It is an important classical physics experiment that existing pulling method is measured the material Young's modulus of elasticity, is that numerous college students must be done one of Physical Experiment.But the contact friction force in the active chuck of this experimental apparatus and the optical lever back up pad between the hole wall is difficult to eliminate fully, thereby measurement result is affected always.In order to eliminate this friction force, instrument manufacturer in the design and installation of instrument base center a leveling bubble, but because instrument pillar reasons such as very long (general 2 meters even longer), even it is placed in the middle to regulate leveling bubble, active chuck still is that secundly has surpassed the gap that instrument allowed, still have friction force with hole wall in the optical lever back up pad, therefore the instrument manufacturer that has has simply removed leveling bubble.Have to require the experimenter seeing that directly the gap of hole wall in active chuck and the optical lever back up pad adjusts during experiment, after bending over to regulate three screws of base, the gap of directly standing up, and active chuck ceaselessly rocks and swings, really be to waste time and energy to eliminate friction force fully, be at last perceptual difference seldom just, this just makes always has friction force exist between the hole wall in active chuck and the optical lever back up pad, cause measuring result error to increase, sometimes or even very big." reversely hung Yong's modulus measurer (patent No. CN 2553365Y) " of my school teacher design is very effective at aspects such as increase testing sample filament length degree and raising optical lever back up pad height and positions, produce effect aspect the friction force in take in sail chuck and optical lever back up pad between the hole wall, but there are 2 deficiencies, the one, because two Zhi Zhuchang of instrument, limited and the influence of factor such as distortion naturally of machining precision, its nonstraightness and nonparallelism are all very big, cause optical lever back up pad mesopore and be fixed on active chuck cylindrical malalignment on the testing sample silk having surpassed gap between them, the 2nd, when sample filaments out of plumb ground, because of silk very thin, active chuck is heavier relatively, cause silk in the bending of active chuck place, increased the weight of the friction between active chuck and the optical lever back up pad mesopore inwall, if the vertical degree of adjustable fixing guarantees the vertical degree of silk, with regard to the same time and effort consuming of saying previously of adjusting situation.
Summary of the invention:
Hole wall produces the problem that friction force influences measurement result and regulates time and effort consuming in drawing yang type modulus instrument active chuck and the optical lever back up pad in order to overcome, the invention provides a kind of drawing yang type modulus measuring instrument does not have the friction movable platform, can address the above problem completely.
The technical scheme that the present invention is used for solving active chuck and the generation contact friction of optical lever back up pad hole wall and regulating problems such as time and effort consuming is that described drawing yang type modulus measuring instrument does not have the friction movable platform and mainly is made up of optical lever back up pad, movable platform and press strip.The median pore diameter of optical lever back up pad is than the big 10～15mm of active chuck external diameter (or circumscribed circle), respectively process a M6 screw on both sides, on the optical lever back up pad, put a movable platform, the median pore diameter of movable platform is only than the big 1-2mm of active chuck external diameter (or circumscribed circle), active chuck passes movable platform and optical lever back up pad mesopore simultaneously, movable platform the place ahead sulculus of processing is so that the front foot of level crossing is limited in this, add a press strip on the movable platform, respectively there is the hole of a diameter 6.5mm at the press strip two ends, press strip is connected on the optical lever back up pad by two screws, and movable platform can be in the optical lever back up pad, move freely with active chuck between press strip and two screws.Regulating base screw during use earlier makes instrument vertical substantially, from the movable platform viewport, see in the middle of active chuck and the optical lever back up pad macropore do not have any contact (because of optical lever back up pad mesopore very big, usually all it goes without doing this step), get off when active chuck is static, when movable platform does not have any contact with active chuck yet, tighten the screw at press strip two ends, movable platform just is fixed on the optical lever back up pad, and this has just guaranteed between active chuck and optical lever back up pad, the movable platform no any friction force.Because of optical lever back up pad mesopore is very big, movable platform can move with active chuck, so it is very easy regulate, and can accomplish complete zerofriction force.Simultaneously owing to interporal lacuna in active chuck cylindrical and the movable platform is very little, the active chuck that causes during counterweight when plus-minus rocks that hole wall generation friction force stops to rock and swinging very soon in the movable platform because of contact with the swing meeting, contactless zerofriction force between the hole wall again and in the movable platform when active chuck is tending towards static, at this moment movable platform can play the effect of damping vibration attenuation again.
After the invention has the beneficial effects as follows that described drawing yang type modulus measuring instrument has been installed does not have the friction movable platform, can accomplish that active chuck is not subjected to the influence of any friction force fully, measuring accuracy is improved, regulate being very easy to, the experiment degree of progress speed.
Description of drawings:
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is an apparatus structure synoptic diagram of the present invention.
Among the figure, (1), pillar (two), (2), optical lever back up pad, (3), screw, (4), press strip, (5), movable platform, (6), viewport, (7), testing sample silk, (8), active chuck, (9), sulculus.
Embodiment:
Among Fig. 1, movable platform (5) places on the optical lever back up pad (2), the active chuck (8) that is fixed on the testing sample silk (7) is in the mesopore of optical lever back up pad (2) and movable platform (5) simultaneously, optical lever back up pad (2) median pore diameter is than the big 10-15mm of active chuck external diameter (or circumscribed circle), the median pore diameter of movable platform (5) is only than the big 1-2mm of active chuck external diameter (or circumscribed circle), seeing the effect of wiping hole (6) is whether the convenient active chuck of observing contacts with the middle hole wall of optical lever back up pad (2), movable platform (5) the place ahead processing sulculus (9), so that the front foot of level crossing is limited in this, press strip (4) places on the movable platform (5), is connected optical lever back up pad (2) by screw (3) and goes up and movable platform (5) can be pressed on the optical lever back up pad (2).
Claims (7)
1. tensile Young's modulus measuring instrument frictionless mouable platform, mainly form by optical lever back up pad, movable platform and press strip, it is characterized in that movable platform places on the optical lever back up pad, active chuck places both mesopores, put press strip above the movable platform, press strip is connected on the optical lever back up pad by two screws.
2. tensile Young's modulus measuring instrument frictionless mouable platform according to claim 1, the median pore diameter that it is characterized in that the optical lever back up pad is than the big 10-15mm of active chuck external diameter (or circumscribed circle).
3. tensile Young's modulus measuring instrument frictionless mouable platform according to claim 1 is characterized in that the both sides of optical lever back up pad respectively process the screw of a M6.
4. tensile Young's modulus measuring instrument frictionless mouable platform according to claim 1, the median pore diameter that it is characterized in that movable platform is only than the only big 1-2mm of active chuck external diameter (or circumscribed circle).
5. whether tensile Young's modulus measuring instrument frictionless mouable platform according to claim 1 is characterized in that the mesopore next door of movable platform is processed with 3 viewports, contact with movable platform with the optical lever back up pad so that observe active chuck.
6. tensile Young's modulus measuring instrument frictionless mouable platform according to claim 1 is characterized in that sulculus of processing is so that the level crossing front foot is limited in this on the movable platform.
7. tensile Young's modulus measuring instrument frictionless mouable platform according to claim 1 is characterized in that press strip places on the movable platform and by two screws press strip is connected on the optical lever back up pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100207286A CN100480668C (en) | 2006-04-18 | 2006-04-18 | Tensile Young's modulus measuring instrument frictionless movable platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100207286A CN100480668C (en) | 2006-04-18 | 2006-04-18 | Tensile Young's modulus measuring instrument frictionless movable platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1851445A true CN1851445A (en) | 2006-10-25 |
| CN100480668C CN100480668C (en) | 2009-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100207286A Expired - Fee Related CN100480668C (en) | 2006-04-18 | 2006-04-18 | Tensile Young's modulus measuring instrument frictionless movable platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100480668C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331368A (en) * | 2011-10-24 | 2012-01-25 | 四川大学 | Three-point limit working platform for stretching Young modulus measuring instrument |
| CN103033420A (en) * | 2012-12-17 | 2013-04-10 | 重庆理工大学 | Novel tensile-method young's modulus measurement instrument |
| CN105486590A (en) * | 2015-12-26 | 2016-04-13 | 唐山学院 | Young modulus instrument |
-
2006
- 2006-04-18 CN CNB2006100207286A patent/CN100480668C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331368A (en) * | 2011-10-24 | 2012-01-25 | 四川大学 | Three-point limit working platform for stretching Young modulus measuring instrument |
| CN103033420A (en) * | 2012-12-17 | 2013-04-10 | 重庆理工大学 | Novel tensile-method young's modulus measurement instrument |
| CN105486590A (en) * | 2015-12-26 | 2016-04-13 | 唐山学院 | Young modulus instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100480668C (en) | 2009-04-22 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20090422 Termination date: 20100418 |