CN201555769U - Tension and compression stress strain detecting device - Google Patents
Tension and compression stress strain detecting device Download PDFInfo
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- CN201555769U CN201555769U CN2009203179658U CN200920317965U CN201555769U CN 201555769 U CN201555769 U CN 201555769U CN 2009203179658 U CN2009203179658 U CN 2009203179658U CN 200920317965 U CN200920317965 U CN 200920317965U CN 201555769 U CN201555769 U CN 201555769U
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Abstract
A tension and compression stress strain detecting device in the technical field of metal stress detection comprises a framework, a force transmission screw stem, an upright column, a first movement mechanism, a second movement mechanism, pluralities of strain sheets, a force sensor, a four-terminal-method resistor box and a controller. The force transmission screw stem and the upright column are respectively fixedly arranged on an upper plane of the framework and vertically connected with an upper plane of the first movement mechanism, the force sensor is located below the second movement mechanism and fixedly disposed at the center of the framework, the first movement mechanism and the second movement mechanism are oppositely disposed on the upper side and the lower side of to-be-detected metal, the strain sheets are fixedly disposed on the outer surface of the to-be-detected metal and connected with the four-terminal-method resistor box, and an output end of the force sensor and an output end of the four-terminal-method resistor box are respectively connected to the controller. The tension and compression stress stain detecting device can detect stress characteristics of metal in multiple directions through once action, and further, result detecting schedule is increased compared with the prior art.
Description
Technical field
The utility model relates to the device in a kind of metal stresses detection technique field, specifically is a kind of tension and compression ess-strain pick-up unit.
Background technology
Lack in the existing Physical Experiment and a kind ofly can can't realize accurate mensuration to the experiment apparatus of metal physics character in the tension and compression process to the tension and compression characteristic of metal.
Find through retrieval prior art, China Patent No. ZL200820037371.7 has put down in writing a kind of folded riveting tension measuring device, it is provided with a base, be provided with permanent magnetic chuck in base one side, be provided with a manual jacking gear at opposite side, this device comprises screw mandrel, screw mandrel handwheel and hoistable platform and two guide pillars, end at hoistable platform has an electronics draw-bar donamometer coupled, what link to each other with the draw-bar donamometer pull bar is permanent magnetic chuck on, but this technology only has single tension measurement function, do not have the pressure detection function, can only show simultaneously the tension sample value of thrust and not to the detection of the micro-variations of tension sample.
The utility model content
The utility model provides a kind of tension and compression ess-strain pick-up unit at the prior art above shortcomings, can pass through the stress characteristics of a motion detection metal on a plurality of directions, and the progress of testing result increases compared with prior art.
The utility model is achieved through the following technical solutions, the utility model comprises: frame, power is transmitted screw rod, column, two motions, some foil gauges, force transducer, four-end method resistance box and controller, wherein: power transmission screw rod is fixedly set in the last plane of frame respectively with column and vertically is connected with the last plane of first motion, force transducer is positioned at second motion below and is fixedly set in frame central authorities, first motion and second motion are relatively arranged on the both sides up and down of metal to be measured, some foil gauges are fixedly set in the outside surface of metal to be measured and are connected with the four-end method resistance box, and the output terminal of the output terminal of force transducer and four-end method resistance box is connected to controller respectively.
Described motion comprises: movable block, guide rail and clamping platform, wherein: a side of movable block and guide rail flexibly connect, opposite side and power are transmitted screw rod and column or are connected with force transducer, and it is fixedly connected with guide rail and contact with the upper surface or the lower surface of metal to be measured to clamp platform.
Open stabilized voltage supply, power demonstration controller, computer power supply during experiment, adjusting power shows controller original state to be measured, and computing machine is in the LabCorder data acquisition platform.Brachium pontis number according to the metal sample resistance strain gage is connected into bridge diagram at the four-end method resistance box, device circuits such as correct connection force transducer, rotation manual wheel is exerted all one's strength and is transmitted screw rod and metal sample is applied draw or pressure up or down, the demonstration of power demonstration controller is drawn or force value, Δ U of resistance strain gage output in the metal sample, having collected a power on computing machine LabCorder data acquisition platform just has a Δ U, can calculate σ and ε according to Hooke's law like this.
In experiment, Temperature Influence is reduced to minimum in order to make resistance strain gage not be subjected to influence of temperature change in the four-end method resistance box, to add thermo-compensator.Power shows that controller is input to computer acquisition and data processing draw force and stress strain between complete curve by the RS232 mouth with the signal of foil gauge through the A/D conversion, thereby calculates the Young modulus E of various metal samples.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below embodiment of the present utility model is elaborated; present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: frame 1, power is transmitted screw rod 2, column 3, first motion 4, second motion 5, some foil gauges 6, force transducer 7, four-end method resistance box 8 and controller 9, wherein: power transmission screw rod 2 is fixedly set in the last plane of frame 1 respectively with column 3 and vertically is connected with the last plane of first motion 4, force transducer 7 is positioned at second motion, 5 belows and is fixedly set in frame 1 central authorities, first motion 4 and second motion 5 are relatively arranged on the both sides up and down of metal to be measured, some foil gauges 6 are fixedly set in the outside surface of metal to be measured and are connected with four-end method resistance box 8, and the output terminal of the output terminal of force transducer 7 and four-end method resistance box 8 is connected to controller 9 respectively.
Described first motion 4 or second motion 5 comprise: movable block 10, guide rail 11 and clamping platform 12, wherein: a side of movable block 10 and guide rail 11 flexibly connect, opposite side and power are transmitted screw rod 2 and column 3 or are connected with force transducer 7, and it is fixedly connected and contact with the upper surface or the lower surface of metal to be measured to clamp platform 12 and guide rail 11.
Described power is transmitted screw rod 2 and is provided with manual pulley 13.
Described force transducer 7 is the force transducer 7 of S shape structure, and its output signal power that is input to shows that controller 14 is input to controller 9 by the RS232 mouth.
Described controller 9 comprises: power shows controller 14 and computing machine 15, wherein: power shows that controller 14 is connected with the output terminal of force transducer 7, computing machine 15 shows that with power controller 14 is connected with four-end method resistance box 8 respectively, shows by power that controller 14 demonstrates and draws or the size of pressure.Length is L, and sectional area is that the metal sample of A is subjected to drawing of P or pressure generation microstrain Δ L, be directly proportional with ε=Δ L/L according to the Hooke's law σ in the mechanics=P/A, i.e. and σ=E ε, wherein E is the Young modulus of metal sample.
Claims (5)
1. tension and compression ess-strain pick-up unit, it is characterized in that, comprise: frame, power is transmitted screw rod, column, first motion, second motion, some foil gauges, force transducer, four-end method resistance box and controller, wherein: power transmission screw rod is fixedly set in the last plane of frame respectively with column and vertically is connected with the last plane of first motion, force transducer is positioned at second motion below and is fixedly set in frame central authorities, first motion and second motion are relatively arranged on the both sides up and down of metal to be measured, some foil gauges are fixedly set in the outside surface of metal to be measured and are connected with the four-end method resistance box, and the output terminal of the output terminal of force transducer and four-end method resistance box is connected to controller respectively.
2. tension and compression ess-strain pick-up unit according to claim 1, it is characterized in that, described first motion or second motion comprise: movable block, guide rail and clamping platform, wherein: a side of movable block and guide rail flexibly connect, opposite side and power are transmitted screw rod and column or are connected with force transducer, and it is fixedly connected with guide rail and contact with the upper surface or the lower surface of metal to be measured to clamp platform.
3. tension and compression ess-strain pick-up unit according to claim 1 is characterized in that, described power is transmitted screw rod and is provided with manual pulley.
4. tension and compression ess-strain pick-up unit according to claim 1 is characterized in that described force transducer is the force transducer of S shape structure, and its output signal power that is input to shows that controller is input to controller by the RS232 mouth.
5. tension and compression ess-strain pick-up unit according to claim 1, it is characterized in that, described controller comprises: power shows controller and computing machine, and wherein: power shows that controller is connected with the output terminal of force transducer, and computing machine shows that with power controller is connected with the four-end method resistance box respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203179658U CN201555769U (en) | 2009-12-21 | 2009-12-21 | Tension and compression stress strain detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203179658U CN201555769U (en) | 2009-12-21 | 2009-12-21 | Tension and compression stress strain detecting device |
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| Publication Number | Publication Date |
|---|---|
| CN201555769U true CN201555769U (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009203179658U Expired - Fee Related CN201555769U (en) | 2009-12-21 | 2009-12-21 | Tension and compression stress strain detecting device |
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| CN (1) | CN201555769U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607757A (en) * | 2012-03-21 | 2012-07-25 | 重庆长安汽车股份有限公司 | Experimental device for static pressure of automobile parts |
| CN103698213A (en) * | 2013-12-29 | 2014-04-02 | 河北联合大学 | Tension and compression test device and method for steel bar connection test piece |
| CN104749031A (en) * | 2015-04-13 | 2015-07-01 | 武汉理工大学 | Measurement jig and measurement method for rotary blade |
| CN105181511A (en) * | 2015-07-31 | 2015-12-23 | 铁道第三勘察设计院集团有限公司 | Commonly used geotechnical test instrument output value in-situ verification and calibration device |
| CN105510119A (en) * | 2016-01-07 | 2016-04-20 | 中国工程物理研究院总体工程研究所 | Adjustable bending tensile stress loading device |
| CN105738206A (en) * | 2016-03-29 | 2016-07-06 | 北京工业大学 | Mini-type bidirectional stress loading device |
| CN104344993B (en) * | 2013-07-23 | 2017-02-22 | 国家电网公司 | Method for testing and measuring member bearing capacity and material performance parameters |
| CN108572110A (en) * | 2018-07-25 | 2018-09-25 | 赵绪华 | A kind of optical fiber at reel detection device |
| CN109230736A (en) * | 2018-09-01 | 2019-01-18 | 陕西智多搭智能科技有限公司 | Tension of aluminum foil detection device |
-
2009
- 2009-12-21 CN CN2009203179658U patent/CN201555769U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607757B (en) * | 2012-03-21 | 2015-11-18 | 重庆长安汽车股份有限公司 | A kind of auto parts and components experimental device for static pressure |
| CN102607757A (en) * | 2012-03-21 | 2012-07-25 | 重庆长安汽车股份有限公司 | Experimental device for static pressure of automobile parts |
| CN104344993B (en) * | 2013-07-23 | 2017-02-22 | 国家电网公司 | Method for testing and measuring member bearing capacity and material performance parameters |
| CN103698213A (en) * | 2013-12-29 | 2014-04-02 | 河北联合大学 | Tension and compression test device and method for steel bar connection test piece |
| CN104749031A (en) * | 2015-04-13 | 2015-07-01 | 武汉理工大学 | Measurement jig and measurement method for rotary blade |
| CN104749031B (en) * | 2015-04-13 | 2017-05-17 | 武汉理工大学 | Measurement jig and measurement method for rotary blade |
| CN105181511B (en) * | 2015-07-31 | 2017-12-15 | 铁道第三勘察设计院集团有限公司 | Conventional earthwork test Instrument power generating value verification caliberating device in situ |
| CN105181511A (en) * | 2015-07-31 | 2015-12-23 | 铁道第三勘察设计院集团有限公司 | Commonly used geotechnical test instrument output value in-situ verification and calibration device |
| CN105510119A (en) * | 2016-01-07 | 2016-04-20 | 中国工程物理研究院总体工程研究所 | Adjustable bending tensile stress loading device |
| CN105510119B (en) * | 2016-01-07 | 2019-01-04 | 中国工程物理研究院总体工程研究所 | Adjustable bent-segment tensile stress loading device |
| CN105738206A (en) * | 2016-03-29 | 2016-07-06 | 北京工业大学 | Mini-type bidirectional stress loading device |
| CN108572110A (en) * | 2018-07-25 | 2018-09-25 | 赵绪华 | A kind of optical fiber at reel detection device |
| CN109230736A (en) * | 2018-09-01 | 2019-01-18 | 陕西智多搭智能科技有限公司 | Tension of aluminum foil detection device |
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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: 20100818 Termination date: 20121221 |