CN204359611U - Physics teaching mechanics tester - Google Patents
Physics teaching mechanics tester Download PDFInfo
- Publication number
- CN204359611U CN204359611U CN201420831483.5U CN201420831483U CN204359611U CN 204359611 U CN204359611 U CN 204359611U CN 201420831483 U CN201420831483 U CN 201420831483U CN 204359611 U CN204359611 U CN 204359611U
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- bracing frame
- tension balanced
- balanced bar
- back timber
- bar
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- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Physics teaching mechanics tester, relates to the modified node method of Experiments of Machanics tensile strength testing device puller system.Comprise bracing frame, bracing frame forms tower structure by base, the back timber being arranged at submounts and the column that is supported in back timber left and right sides; Respectively have a slideway vertically arranged inside left and right pillar, a horizontally disposed tension balanced bar is arranged in bracing frame, and there is slide block at tension balanced bar two ends, and two slide blocks are slidably matched with two slideways respectively; Clamper is separately installed with below bracing frame back timber He above tension balanced bar; Below tension balanced bar, centre position is fixed with a weight tray, is provided with counterweight in weight tray; Below tension balanced bar, be symmetrically set with spiral compression spring, spiral compression spring two ends withstand on tension balanced bar and base respectively.The utility model solves existing device for testing tensile force, and to there is pulling force unbalanced, and test result error is large, can not the problem of reaction test result intuitively.
Description
Technical field
The utility model relates to physics teaching device, is specifically related to the modified node method of Experiments of Machanics tensile strength testing device puller system.
Background technology
Mechanical stretch test refers to is bearing the test method measuring material behavior under axial tensile loads.The data utilizing tension test to obtain can determine elastic limit of materials, length growth rate, elastic modulus, proportional limit, area reduction amount, pulling strengrth, yield point, yield strength and other tensile property index.The tension test carried out from high temperature can obtain creep data.The step of metal tensile test can see ASTM E-8 standard.The method of plastic tensile test is see ASTM D-638 standard, D-2289 standard (high strain-rate) and D-882 standard (fine sheet).ASTM D-2343 standard defines the stretching test method being applicable to glass fibre; The stretching test method being applicable to cementing agent is defined in ASTM D-897 standard; The stretching test method of rubberite is defined in ASTM D-412 standard.
Chinese patent literature CN203224788U, discloses a kind of micro computer pulling force control device, and this device is by microcomputerized control pulling force, and pulling force, pull-off force, breaking elongation, tear edge, peeling force etc. that manpower carries out object are tested.It is unbalanced to there is pulling force in above-mentioned proving installation, and test result error is large, can not reaction test result intuitively.
Utility model content
The utility model provides physics teaching mechanics tester, and the utility model solves existing device for testing tensile force, and to there is pulling force unbalanced, and test result error is large, can not the problem of reaction test result intuitively.
For solving the problem, the utility model adopts following technical scheme: physics teaching mechanics tester, comprises bracing frame, and bracing frame forms tower structure by base, the back timber being arranged at submounts and the column that is supported in back timber left and right sides; Respectively have a slideway vertically arranged inside left and right pillar, a horizontally disposed tension balanced bar is arranged in bracing frame, and there is slide block at tension balanced bar two ends, and two slide blocks are slidably matched with two slideways respectively; Clamper is separately installed with below bracing frame back timber He above tension balanced bar; Below tension balanced bar, centre position is fixed with a weight tray, is provided with counterweight in weight tray; Below tension balanced bar, be symmetrically set with spiral compression spring, spiral compression spring two ends withstand on tension balanced bar and base respectively.
Between the utility model clamper, measured object is installed.Measure time, to the pulling force of measured object equal tension balanced bar, weight tray, counterweight weight summation deduct the elastic force of two spiral compression springs.Owing to adopting symmetrically arranged two spiral compression springs, the therefore tension equalizer of tension balanced bar, measurement data is more accurate.Owing to having scale mark on two columns of bracing frame, the length of object stretching and the decrement of spiral compression spring therefore can be observed intuitively.The utility model has that volume is little, easy to operate, test process is directly perceived, test data advantage accurately, is relatively applicable to physics teaching experiment and uses.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A cut-open view of Fig. 1.
Symbol description in figure: bracing frame 1, clamper 2, tension balanced bar 3, weight tray 4, spiral compression spring 5, scale mark 6, slideway 7, slide block 8.
Embodiment
By best embodiment, the utility model is described in detail below.
As shown in Figure 1-2, physics teaching mechanics tester, bracing frame is plastics or plastic-steel material, requires some strength.Bracing frame 1 forms tower structure by base, the back timber being arranged at submounts and the column that is supported in back timber left and right sides, has scale mark 6 respectively at the left and right pillar front side surface of bracing frame 1.Respectively have a slideway 7 vertically arranged inside left and right pillar, slideway cross section is T-shaped.A horizontally disposed tension balanced bar 3 is arranged in bracing frame 1, and there is slide block 8 at tension balanced bar 3 two ends, and two slide blocks 8 are slidably matched with two slideways 7 respectively, and slide block is arranged in the T-slot of slideway.Below bracing frame 1 back timber He above tension balanced bar 3, be separately installed with clamper 2, clamper is positioned at centre position.Holder structure does not specially require, as long as testee can be clipped solid.Below tension balanced bar 3, centre position is fixed with a weight tray 4, is provided with counterweight in weight tray 4; Below tension balanced bar 3, be symmetrically set with spiral compression spring 5, spiral compression spring 5 two ends withstand on tension balanced bar 3 and base respectively.During use, measured article are clamped, add counterweight, after testee launches, the scale of record tension balanced bar, continues to add counterweight, testee is stretched, tension balanced bar place scale is recorded when testee is broken, spiral compression spring decrement can be calculated by above-mentioned scale difference, the tensile elongation of testee can be drawn simultaneously, calculate the pulling force of applying simultaneously.Said apparatus is widely used in the mechanical property test of the nonmetallic materials such as rubber, plastics, electric wire, yarn fabric, fiber or cloth and tinsel, metal forming, sheet metal and metal bar.Also be applicable to the stretching of various product, stripping, tear test.
Last it is noted that obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection domain of the present utility model.
Claims (2)
1. physics teaching mechanics tester, comprises bracing frame, and bracing frame forms tower structure by base, the back timber being arranged at submounts and the column that is supported in back timber left and right sides; It is characterized in that, respectively have a slideway vertically arranged inside left and right pillar, a horizontally disposed tension balanced bar is arranged in bracing frame, and there is slide block at tension balanced bar two ends, and two slide blocks are slidably matched with two slideways respectively; Clamper is separately installed with below bracing frame back timber He above tension balanced bar; Below tension balanced bar, centre position is fixed with a weight tray, is provided with counterweight in weight tray; Below tension balanced bar, be symmetrically set with spiral compression spring, spiral compression spring two ends withstand on tension balanced bar and base respectively.
2. physics teaching mechanics tester as claimed in claim 1, is characterized in that there is scale mark respectively at the left and right pillar front side surface of bracing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831483.5U CN204359611U (en) | 2014-12-17 | 2014-12-17 | Physics teaching mechanics tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831483.5U CN204359611U (en) | 2014-12-17 | 2014-12-17 | Physics teaching mechanics tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204359611U true CN204359611U (en) | 2015-05-27 |
Family
ID=53261075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420831483.5U Expired - Fee Related CN204359611U (en) | 2014-12-17 | 2014-12-17 | Physics teaching mechanics tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204359611U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226508A (en) * | 2016-09-26 | 2016-12-14 | 国网四川省电力公司电力科学研究院 | A kind of stretching device for swell rubber characteristic test and method of testing |
| CN107808570A (en) * | 2017-11-23 | 2018-03-16 | 吴子敬 | A kind of physics teaching exhibiting device |
| CN108645711A (en) * | 2018-07-13 | 2018-10-12 | 福州大学 | A kind of micro-displacement detection device and its detection method for metal rubber material |
| CN108844670A (en) * | 2018-06-20 | 2018-11-20 | 苏州市众寅弹簧制造有限公司 | Simple tension spring tension detection device |
| CN109637300A (en) * | 2019-02-14 | 2019-04-16 | 邵思哲 | A kind of high school student's Physical Experiment tension tester |
| CN110220798A (en) * | 2019-06-13 | 2019-09-10 | 四川大学 | Steel wire Young's modules instrument improves device |
| CN116465726A (en) * | 2023-05-29 | 2023-07-21 | 深圳市华塑技术有限公司 | Plastic steel packing belt tensile strength detection device |
-
2014
- 2014-12-17 CN CN201420831483.5U patent/CN204359611U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226508A (en) * | 2016-09-26 | 2016-12-14 | 国网四川省电力公司电力科学研究院 | A kind of stretching device for swell rubber characteristic test and method of testing |
| CN106226508B (en) * | 2016-09-26 | 2018-09-11 | 国网四川省电力公司电力科学研究院 | A kind of stretching device and test method for swell rubber characteristic test |
| CN107808570A (en) * | 2017-11-23 | 2018-03-16 | 吴子敬 | A kind of physics teaching exhibiting device |
| CN108844670A (en) * | 2018-06-20 | 2018-11-20 | 苏州市众寅弹簧制造有限公司 | Simple tension spring tension detection device |
| CN108645711A (en) * | 2018-07-13 | 2018-10-12 | 福州大学 | A kind of micro-displacement detection device and its detection method for metal rubber material |
| CN108645711B (en) * | 2018-07-13 | 2023-07-18 | 福州大学 | Micro-displacement detection device for metal rubber material and detection method thereof |
| CN109637300A (en) * | 2019-02-14 | 2019-04-16 | 邵思哲 | A kind of high school student's Physical Experiment tension tester |
| CN110220798A (en) * | 2019-06-13 | 2019-09-10 | 四川大学 | Steel wire Young's modules instrument improves device |
| CN116465726A (en) * | 2023-05-29 | 2023-07-21 | 深圳市华塑技术有限公司 | Plastic steel packing belt tensile strength detection device |
| CN116465726B (en) * | 2023-05-29 | 2024-04-09 | 深圳市华塑技术有限公司 | Plastic steel packing belt tensile strength detection device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20171217 |