CN202433268U - Broadband measuring device for dynamic mechanical properties of viscous-elastic materials - Google Patents
Broadband measuring device for dynamic mechanical properties of viscous-elastic materials Download PDFInfo
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- CN202433268U CN202433268U CN201220013759XU CN201220013759U CN202433268U CN 202433268 U CN202433268 U CN 202433268U CN 201220013759X U CN201220013759X U CN 201220013759XU CN 201220013759 U CN201220013759 U CN 201220013759U CN 202433268 U CN202433268 U CN 202433268U
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Abstract
The utility model provides a broadband measuring device for dynamic mechanical properties of viscous-elastic materials. The broadband measuring device for the dynamic mechanical properties of the viscous-elastic materials comprises a test sample clamping mechanism, a column, a transducer assembly, a vibration exciter assembly and a base. The transducer assembly and the vibration exciter assembly are fixed on the column, and the transducer assembly comprises a transducer platform and an electrical eddy-current transducer, wherein the transducer platform is installed on the column, the electrical eddy-current transducer is installed on the transducer platform through an L-shaped support. The vibration exciter assembly comprises a vibration exciter platform and a vibration exciter, wherein the vibration exciter platform is also installed on the column, and the vibration exciter is installed on the vibration exciter platform through a single face support. The broadband measuring device is contacted with a horizontal plane through three adjustable spherical surface screws and has good adaptability to a working table face. The position of the electrical eddy-current transducer and the position of the vibration exciter are coarsely adjusted through U-shaped grooves, and the adjustment is more convenient, quicker and larger in range compared with the adjustment performed in a closed round hole fixing mode. The column is made of bronze and can reduce the influence of electro-magnetic induction in small tests.
Description
Technical field
The present invention relates to relate to viscoelastic material parameter testing technical field, be specially a kind of viscoelastic material dynamic characteristics broadband measurement device.
Background technology
At present; The measurement mechanism of disclosed test viscoelastic material dynamic characteristics parameter mainly contains Denmark B&K 3109 on the market; With the damping material test bracket and the damping material test macro of BeiQi FuTian Car Co., Ltd's application, publication number is CN201689037U.The defective that above-mentioned two kinds of devices exist has: cost an arm and a leg; Test frequency range is narrow, and method of application is complicated; The device bottom surface is that whole face contacts with surface level, causes the work top flatness is required high; The gib screw of vibrator platform and sensor platform is positioned at the same side with the screw of regulating the platform upper-lower position in the device, is unfavorable for the platform secure fixation; Vibrator horizontal level range of adjustment is little; Vibrator and sensor all are clamped in the sealing circular hole of device, are unfavorable for regulating.
Summary of the invention
The technical matters that solves
Consider the deficiency that exists in the existing apparatus, on the basis of existing national standard " GB/T16406-1996 ", the present invention proposes a kind of viscoelastic material dynamic characteristics broadband measurement device.
Technical scheme
Technical scheme of the present invention is:
Said a kind of viscoelastic material dynamic characteristics broadband measurement device is characterized in that: comprise the test specimen clamping device, column, sensor module, vibrator assembly and base; The test specimen clamping device is a slab construction, has the test specimen locating slot on the test specimen clamping device, is provided with slideway in the test specimen locating slot, and slide block drives lower edge slideway motion at rotary handle, through slide block and test specimen locating slot end face with the test specimen clamping; Base is the steel disc structure, is fixed with three identical sphere screws at base end face, and three sphere screws are equilateral triangle at base end face and distribute; Base and test specimen clamping device are vertically fixed on the column two ends respectively, and base is parallel with the test specimen clamping device; Column adopts bronze material, is fixed with sensor module and vibrator assembly on the column; Sensor module comprises sensor platform and current vortex sensor, and sensor platform is installed on the column, and regulates the position of sensor platform in the strut length direction through the sensor platform height adjustment knob; Current vortex sensor is connected with sensor platform through L type support, and the current vortex sensor induction end is vertically over against test specimen; Current vortex sensor is installed in the U type groove of L type support one side; And the current vortex sensor axis normal is in this side; The last plane of L type support another side and sensor platform is fitted and connected, and regulates the horizontal direction position on L type support plane on sensor platform through the WidFin knob; The vibrator assembly comprises vibrator platform and vibrator, and the vibrator platform is installed on the column, and regulates the position of vibrator platform in the strut length direction through vibrator podium level adjusting knob; Vibrator is connected with the vibrator platform through the single face support, and the vibrator exciting is rectified test piece end; Vibrator is installed in the U type groove of single face support; The single face support is fixedly connected with the last plane of vibrator platform.
Beneficial effect
The present invention is than prior art, and the effect of generation is: the present invention contacts with surface level through 3 adjustable sphere screws, and is good to work top adaptability, and good stability during use, to be excited disturbance little; The present invention is through the position of U type groove coarse adjustment current vortex sensor and vibrator, and it is more convenient, quick to seal the adjusting of circular hole fixed form, and range of adjustment is bigger; The pretension approach screw of band hunting gear has been adopted in the clamping of test specimen, and in clamping device, has designed locating slot, and it is more convenient to make test specimen install, and it is more accurate to locate; Column adopts bronze to make, the electromagnetic induction influence in can reducing to test; And the column guide rail has adopted integrated design, makes that sensor and vibrator position adjustments are more steady, has prolonged the serviceable life of device.
Description of drawings
Fig. 1: structural representation of the present invention;
Fig. 2: vertical view of the present invention;
Fig. 3: single face supporting structure synoptic diagram;
Wherein: 1, test specimen clamping device; 2, rotary handle; 3, column; 4, fine setting locking knob; 5, current vortex sensor; 6, test specimen; 7, WidFin knob; 8, sensor platform height adjustment knob; 9, sensor platform; 10, vibrator; 11, vibrator platform; 12, base; 13, sphere screw; 14, L type support; 15, vibrator podium level adjusting knob; 16, single face support; 17, slide block.
Embodiment
Below in conjunction with specific embodiment the present invention is described:
Present embodiment is that the measurement mechanism that utilizes the present invention to propose is measured the Young modulus and the dissipation factor of certain type organic glass test specimen, and contrasts with nominal value.
Viscoelastic material dynamic characteristics broadband measurement device in the present embodiment comprises test specimen clamping device 1, column 3, sensor module, vibrator assembly and base 12.
With reference to accompanying drawing 2; The test specimen clamping device is the polygon slab construction; On the test specimen clamping device, have the test specimen locating slot, be provided with slideway in the test specimen locating slot, slide block is in rotary handle 2 drive lower edge slideway motions; One end of organic glass semi-girder test specimen is placed between slide block and the test specimen locating slot end face, drives slide block with the test specimen clamping through rotary handle.
For reducing electromagnetic interference (EMI), column 3 adopts bronze material to process.Be fixed with sensor module and vibrator assembly on the column; Sensor module comprises sensor platform and current vortex sensor, and sensor platform is installed on the column, is used to install current vortex sensor 5 and realizes its position adjustments.Sensor platform height adjustment knob 8 is regulated the position of sensor platform in the strut length direction; Concrete mode does; After unscrewing sensor platform height adjustment knob 8, the manual adjustments sensor platform is in the position of strut length direction, and the sensor platform height adjustment knob 8 of screwing then gets final product.Current vortex sensor is connected with sensor platform through L type support, and the current vortex sensor induction end is vertically over against test specimen; Current vortex sensor is installed in the U type groove of L type support one side, and fixes with clamp nut, and the current vortex sensor axis normal is in this side; The last plane of L type support another side and sensor platform is fitted and connected, and passes through the horizontal direction position that WidFin knob 7 is regulated L type support planes on sensor platform, and concrete regulative mode does; Lead-screw drive mechanism is installed in sensor platform; Leading screw screw and L type support are fixed, and vernier adjustment knob 7 drives the leading screw rotation, realizes the horizontal direction fine position on L type support plane on sensor platform; After trim locations is confirmed, screw is locked through fine setting locking knob 4.
The vibrator assembly comprises vibrator platform 11 and vibrator 10; The vibrator platform is installed on the column; And pass through vibrator podium level adjusting knob 15 and regulate the vibrator platforms in the position of strut length direction, the working method of vibrator podium level adjusting knob 15 is identical with sensor platform height adjustment knob 8 working methods.Vibrator is connected with the vibrator platform through single face support 16, and the vibrator exciting is rectified test piece end; Vibrator is installed in the U type groove of single face support, and fixes through set nut; The single face support is connected with the last plane bolt of vibrator platform.
Through adjustment, guarantee that whole device centre of gravity place is positioned at below 1/3rd height of column, to improve the stability of device to whole dimension.
Following table has provided the correlation data of organic glass test specimen measurement result and nominal value:
Table 1 organic glass test specimen measurement result and nominal value contrast table
From table, can find out that this device has accurately recorded the Young modulus and the dissipation factor of organic glass test specimen, thus validity of the present invention can be described.
Claims (1)
1. a viscoelastic material dynamic characteristics broadband measurement device is characterized in that: comprise the test specimen clamping device, column, sensor module, vibrator assembly and base; The test specimen clamping device is a slab construction, has the test specimen locating slot on the test specimen clamping device, is provided with slideway in the test specimen locating slot, and slide block drives lower edge slideway motion at rotary handle, through slide block and test specimen locating slot end face with the test specimen clamping; Base is the steel disc structure, is fixed with three identical sphere screws at base end face, and three sphere screws are equilateral triangle at base end face and distribute; Base and test specimen clamping device are vertically fixed on the column two ends respectively, and base is parallel with the test specimen clamping device; Column adopts bronze material, is fixed with sensor module and vibrator assembly on the column; Sensor module comprises sensor platform and current vortex sensor, and sensor platform is installed on the column, and regulates the position of sensor platform in the strut length direction through the sensor platform height adjustment knob; Current vortex sensor is connected with sensor platform through L type support, and the current vortex sensor induction end is vertically over against test specimen; Current vortex sensor is installed in the U type groove of L type support one side; And the current vortex sensor axis normal is in this side; The last plane of L type support another side and sensor platform is fitted and connected, and regulates the horizontal direction position on L type support plane on sensor platform through the WidFin knob; The vibrator assembly comprises vibrator platform and vibrator, and the vibrator platform is installed on the column, and regulates the position of vibrator platform in the strut length direction through vibrator podium level adjusting knob; Vibrator is connected with the vibrator platform through the single face support, and the vibrator exciting is rectified test piece end; Vibrator is installed in the U type groove of single face support; The single face support is fixedly connected with the last plane of vibrator platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220013759XU CN202433268U (en) | 2012-01-13 | 2012-01-13 | Broadband measuring device for dynamic mechanical properties of viscous-elastic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220013759XU CN202433268U (en) | 2012-01-13 | 2012-01-13 | Broadband measuring device for dynamic mechanical properties of viscous-elastic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433268U true CN202433268U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220013759XU Expired - Fee Related CN202433268U (en) | 2012-01-13 | 2012-01-13 | Broadband measuring device for dynamic mechanical properties of viscous-elastic materials |
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| Country | Link |
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| CN (1) | CN202433268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564873A (en) * | 2012-01-13 | 2012-07-11 | 西北工业大学 | Wideband measuring device for dynamic mechanical property of viscous-elastic material |
| CN102879160A (en) * | 2012-09-19 | 2013-01-16 | 北京林业大学 | Multifunctional fixed table for loading machine test |
-
2012
- 2012-01-13 CN CN201220013759XU patent/CN202433268U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564873A (en) * | 2012-01-13 | 2012-07-11 | 西北工业大学 | Wideband measuring device for dynamic mechanical property of viscous-elastic material |
| CN102879160A (en) * | 2012-09-19 | 2013-01-16 | 北京林业大学 | Multifunctional fixed table for loading machine test |
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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: 20120912 Termination date: 20150113 |
|
| EXPY | Termination of patent right or utility model |