CN105241746A - Stress application mechanism in apparatus for measuring tiny shear strain of material - Google Patents
Stress application mechanism in apparatus for measuring tiny shear strain of material Download PDFInfo
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- CN105241746A CN105241746A CN201510601147.0A CN201510601147A CN105241746A CN 105241746 A CN105241746 A CN 105241746A CN 201510601147 A CN201510601147 A CN 201510601147A CN 105241746 A CN105241746 A CN 105241746A
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- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000002474 experimental method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
本发明涉及一种测量材料微小切应变装置中的加力机构,包含支撑架、压缩测力计;所述支撑架上设置有两根水平且平行放置的支撑杆;所述支撑架上设置有螺纹连接的调节螺母;所述压缩测力计设置在两根支撑杆上,一端与调节螺母的内端连接,另一端设置有推力杆;工作时,所述推力杆的另一端与拨杆的一端相接触;本发明能直接侧出切应变值,从而提高了测量精度,且结构简单,使用方便。
The invention relates to a force applying mechanism in a device for measuring micro-shear strain of materials, which includes a support frame and a compression dynamometer; the support frame is provided with two horizontal and parallel support rods; the support frame is provided with Adjusting nuts that are threaded; the compression dynamometer is arranged on two support rods, one end is connected to the inner end of the adjusting nut, and the other end is provided with a thrust rod; when working, the other end of the thrust rod is connected to the One end is in contact; the invention can directly output the shear strain value, thereby improving the measurement accuracy, and has a simple structure and is convenient to use.
Description
技术领域 technical field
本发明涉及力学实验仪器领域,特指一种测量材料微小切应变装置中的加力机构。 The invention relates to the field of mechanical experiment instruments, in particular to a force applying mechanism in a device for measuring micro-shear strain of materials.
背景技术 Background technique
现有测量材料微小切应变装置通过加力机构给竖直杆一个很小的切应力,带动试样产生扭转,观察反射光偏移的角度并结合施加的切应力值计算出材料的切应变,但施加的切应力需要手工去测量,不仅测量不方便,且容易造成测量误差,从而降低了测量精度,为此,我们研发了一种测量材料微小切应变装置中的加力机构,能直接侧出切应变值,从而提高了测量精度。 The existing device for measuring the small shear strain of materials gives a small shear stress to the vertical rod through the force-applying mechanism, which drives the sample to twist, observes the angle of reflected light deviation and calculates the shear strain of the material combined with the value of the applied shear stress. However, the applied shear stress needs to be measured manually, which is not only inconvenient to measure, but also easily causes measurement errors, thereby reducing the measurement accuracy. For this reason, we have developed a force-adding mechanism in the device for measuring the micro-shear strain of materials, which can directly The shear strain value is obtained, thereby improving the measurement accuracy.
发明内容 Contents of the invention
本发明目的是为了克服现有技术的不足而提供一种测量材料微小切应变装置中的加力机构,能直接侧出切应变值,从而提高了测量精度。 The object of the present invention is to overcome the deficiencies of the prior art and provide a force applying mechanism in a device for measuring micro-shear strain of materials, which can directly output the shear strain value, thereby improving the measurement accuracy.
为达到上述目的,本发明采用的技术方案是:一种测量材料微小切应变装置中的加力机构,包含支撑架、压缩测力计;所述支撑架上设置有两根水平且平行放置的支撑杆;所述支撑架上设置有螺纹连接的调节螺母;所述压缩测力计设置在两根支撑杆上,一端与调节螺母的内端连接,另一端设置有推力杆;工作时,所述推力杆的另一端与拨杆的一端相接触。 In order to achieve the above purpose, the technical solution adopted by the present invention is: a force application mechanism in a device for measuring the micro-shear strain of materials, including a support frame and a compression dynamometer; the support frame is provided with two horizontal and parallel a support rod; the support frame is provided with a threaded adjustment nut; the compression dynamometer is arranged on two support rods, one end is connected with the inner end of the adjustment nut, and the other end is provided with a thrust rod; when working, the The other end of the thrust rod is in contact with one end of the driving rod.
优选的,所述调节螺母设置在两根支撑杆之间。 Preferably, the adjusting nut is arranged between two support rods.
优选的,所述支撑杆的两端分别通过螺钉固定在支撑架上。 Preferably, both ends of the support rod are respectively fixed on the support frame by screws.
由于上述技术方案的运用,本发明与现有技术相比具有下列优点: Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:
本发明所述的测量材料微小切应变装置中的加力机构能直接侧出切应变值,从而提高了测量精度,且结构简单,使用方便;通过实验便于教师在课堂上讲解抽象的切应变知识点,更加具体形象化,使同学更容易接受,提高了学习效率。 The force-applying mechanism in the device for measuring material micro-shear strain according to the present invention can directly output the shear strain value, thereby improving the measurement accuracy, and the structure is simple and easy to use; it is convenient for teachers to explain the abstract knowledge of shear strain in the classroom through experiments Points, more specific and visualized, make it easier for students to accept, and improve learning efficiency.
附图说明 Description of drawings
下面结合附图对本发明技术方案作进一步说明: Below in conjunction with accompanying drawing, technical solution of the present invention will be further described:
附图1为本发明所述的测量材料微小切应变装置中的加力机构的结构示意图; Accompanying drawing 1 is the structural representation of the force application mechanism in the measuring material micro-shear strain device of the present invention;
其中:1、支撑架;2、拨杆;3、螺钉;4、支撑杆;5、推力杆;6、压缩测力计;7、调节螺母。 Among them: 1. Support frame; 2. Driving rod; 3. Screw; 4. Support rod; 5. Thrust rod; 6. Compression dynamometer; 7. Adjusting nut.
具体实施方式 detailed description
下面结合附图及具体实施例对本发明作进一步的详细说明。 The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
附图1为本发明所述的测量材料微小切应变装置中的加力机构,包含支撑架1、压缩测力计6;所述支撑架1上设置有两根水平且平行放置的支撑杆4;所述支撑杆4的两端分别通过螺钉3固定在支撑架1上,便于维修更换;所述支撑架1上在两根支撑杆4之间设置有螺纹连接的调节螺母7;所述压缩测力计6设置在两根支撑杆4上,一端与调节螺母7的内端连接,使压缩测力计6受力均匀,另一端设置有推力杆5;工作时,所述推力杆5的另一端与拨杆2的一端相接触。 Accompanying drawing 1 is the force application mechanism in the measuring material micro-shear strain device of the present invention, comprises support frame 1, compression dynamometer 6; Described support frame 1 is provided with two horizontal and parallel support rods 4 The two ends of the support rod 4 are fixed on the support frame 1 by screws 3 respectively, which is convenient for maintenance and replacement; the adjustment nut 7 threaded between the two support rods 4 is provided on the support frame 1; The dynamometer 6 is arranged on two support rods 4, and one end is connected with the inner end of the adjusting nut 7, so that the compression dynamometer 6 is evenly stressed, and the other end is provided with a thrust rod 5; when working, the thrust rod 5 The other end is in contact with one end of the driving lever 2 .
使用时:先转动调节螺母7使压缩测力计6读数归零;在转动调节螺母7,由压缩测力计6推动推力杆5带动拨杆2转动,切应变值能直接在压缩测力计6上读出。 When in use: first turn the adjustment nut 7 to reset the reading of the compression dynamometer 6 to zero; after turning the adjustment nut 7, the compression dynamometer 6 pushes the thrust rod 5 to drive the lever 2 to rotate, and the shear strain value can be directly read on the compression dynamometer 6 read out.
由于上述技术方案的运用,本发明与现有技术相比具有下列优点: Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:
本发明所述的测量材料微小切应变装置中的加力机构能直接侧出切应变值,从而提高了测量精度,且结构简单,使用方便;通过实验便于教师在课堂上讲解抽象的切应变知识点,更加具体形象化,使同学更容易接受,提高了学习效率。 The force-applying mechanism in the device for measuring material micro-shear strain according to the present invention can directly output the shear strain value, thereby improving the measurement accuracy, and the structure is simple and easy to use; it is convenient for teachers to explain the abstract knowledge of shear strain in the classroom through experiments Points, more specific and visualized, make it easier for students to accept, and improve learning efficiency.
以上仅是本发明的具体应用范例,对本发明的保护范围不构成任何限制。凡采用等同变换或者等效替换而形成的技术方案,均落在本发明权利保护范围之内。 The above are only specific application examples of the present invention, and do not constitute any limitation to the protection scope of the present invention. All technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105537744A (en) * | 2016-01-21 | 2016-05-04 | 陕西理工学院 | Miniature percussion welding pressurization device |
CN107796543A (en) * | 2017-11-06 | 2018-03-13 | 北京兴承科技有限公司 | Strain-type micro gap monitoring device and fission calculation method |
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CN101706392A (en) * | 2009-09-28 | 2010-05-12 | 桐乡波力科技复材用品有限公司 | Multifunctional racket tester and testing method thereof |
CN103308220A (en) * | 2013-01-05 | 2013-09-18 | 中国航空工业集团公司西安飞机设计研究所 | Small force measuring device |
CN103335769A (en) * | 2013-07-03 | 2013-10-02 | 中国科学院力学研究所 | Weak force measuring device for electric thruster |
CN205067209U (en) * | 2015-09-21 | 2016-03-02 | 苏州市职业大学 | Measure afterburning mechanism in small shearing strain device of material |
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- 2015-09-21 CN CN201510601147.0A patent/CN105241746A/en active Pending
Patent Citations (6)
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CN101063638A (en) * | 2007-06-12 | 2007-10-31 | 江西洪都航空工业集团有限责任公司 | Vertical type micro-force values measuring instrument |
CN101319980A (en) * | 2008-07-11 | 2008-12-10 | 天津大学 | Micro-newton/nanonew level ultra-micro force value measuring device and force value traceability method |
CN101706392A (en) * | 2009-09-28 | 2010-05-12 | 桐乡波力科技复材用品有限公司 | Multifunctional racket tester and testing method thereof |
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CN103335769A (en) * | 2013-07-03 | 2013-10-02 | 中国科学院力学研究所 | Weak force measuring device for electric thruster |
CN205067209U (en) * | 2015-09-21 | 2016-03-02 | 苏州市职业大学 | Measure afterburning mechanism in small shearing strain device of material |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN105537744A (en) * | 2016-01-21 | 2016-05-04 | 陕西理工学院 | Miniature percussion welding pressurization device |
CN105537744B (en) * | 2016-01-21 | 2018-07-13 | 陕西理工学院 | A kind of miniature stored energy welding pressue device |
CN107796543A (en) * | 2017-11-06 | 2018-03-13 | 北京兴承科技有限公司 | Strain-type micro gap monitoring device and fission calculation method |
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