CN201819662U - Clamp block with circular slot at bottom of clamp gap used for vibrating wire strain gauge - Google Patents
Clamp block with circular slot at bottom of clamp gap used for vibrating wire strain gauge Download PDFInfo
- Publication number
- CN201819662U CN201819662U CN2010205594696U CN201020559469U CN201819662U CN 201819662 U CN201819662 U CN 201819662U CN 2010205594696 U CN2010205594696 U CN 2010205594696U CN 201020559469 U CN201020559469 U CN 201020559469U CN 201819662 U CN201819662 U CN 201819662U
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- China
- Prior art keywords
- clamp
- crack
- fixture block
- circular groove
- circular slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Abstract
The utility model discloses a clamp block with a circular slot at the bottom of a clamp gap used for a vibrating wire strain gauge. The clamp block comprises a clamp block body (2) with a positioning surface (1); a clamp gap (3) and a central sink hole (4) are formed on the clamp block body (2); and a circular slot (5) is formed at the bottom of the clamp gap (3). The circular slot is formed at the bottom of the clamp gap, so as to eliminate the processing stress and the stress concentration point of the bottom of the clamp gap, solve the problem in the prior art that the bottom of the clamp gap is liable to crack, ensure stable clamping force and improve the measurement accuracy. The clamp block provided by the utility model is easy and feasible, is convenient to process and has a remarkable effect.
Description
Technical field
The utility model relates to the part of using on a kind of strainometer, particularly relates to the fixture block that crack bottom that a kind of vibrating string extensometer uses is provided with circular groove.
Background technology
Fixture block is the parts that are used for clamping string silk on the vibrating string extensometer, fixture block is provided with crack, symmetry is provided with two fixture blocks in vibrating string extensometer, the two ends of string silk by the crack clamping on two fixture blocks respectively, and be tightened up, the string silk between two fixture blocks can induce the STRESS VARIATION of measured object.Fixture block is to exert pressure in the vertical direction of crack by jackscrew when clamping the string silk, crack is produced narrow down, and the string silk is clamped.
When the processing crack, normally cut out a seam with circular peripheral-mill on fixture block at present, the width of seam is corresponding with the diameter of string silk; slightly big than string filament diameter; be at the bottom of the right angle bottom the seam, find right-angle side in the use in the crack bottom; because the problem of machining stress; crackle appears through regular meeting, and add hold in since deformation point at the right-angle side of crack bottom, the right-angle side of crack bottom becomes stress concentration point; cause the holding force instability, influence measuring accuracy.
The utility model content
The purpose of this utility model is that the crack bottom that provides a kind of vibrating string extensometer to use is provided with the fixture block of circular groove, can eliminate the machining stress of crack bottom, overcome the problem that crackle appears in the crack bottom, disperse stress concentration point, can keep stable holding force, improved measuring accuracy.
The technical solution of the utility model: the crack bottom that a kind of vibrating string extensometer is used is provided with the fixture block of circular groove, comprises the fixture block body that is provided with locating surface, and the fixture block body is provided with crack and center counterbore, is provided with circular groove at the bottom of the seam of crack.
The crack bottom that aforementioned vibrating string extensometer is used is provided with in the fixture block of circular groove, and described circular groove is parallel with crack.
The crack bottom that aforementioned vibrating string extensometer is used is provided with in the fixture block of circular groove, and the diameter of described circular groove is greater than the gap width of crack.
Compared with prior art, the utility model has been eliminated the machining stress and the stress concentration point of crack bottom owing to be provided with circular groove in the crack bottom, and the crack bottom that has overcome prior art is prone to the problem of crackle, can keep stable holding force, improves measuring accuracy.The utility model is simple, and is easy to process, and effect is remarkable.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a schematic appearance of the present utility model;
Fig. 3 is the prior art constructions synoptic diagram.
Being labeled as in the accompanying drawing: 1-locating surface, 2-fixture block body, 3-crack, 4-center counterbore, 5-circular groove.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, but not as to any restriction of the present utility model.
Embodiment.The utility model as shown in Figure 1.Fig. 1 of the present utility model 1/4 analyses and observe schematic perspective view, as seen from Figure 1, comprises the fixture block body 2 that is provided with locating surface 1, the plane that the junction that described locating surface 1 is two sections different-diameters forms.Less one section of diameter is provided with crack 3 on the fixture block body 2, and bigger one section of diameter is provided with center counterbore 4 on the fixture block body 2, is provided with circular groove 5 at the bottom of the seam of crack 3.Circular groove 5 is parallel with crack 3.The diameter of circular groove 5 is greater than the gap width of crack 3.
During concrete enforcement, can use lathe car system fixture block body 2 earlier, fixture block body 2 is made of the right cylinder of two sections different-diameters, junction at two sections different-diameters forms locating surface 1, end face at large diameter cylinder bores a center counterbore 4, and the degree of depth in hole should surpass the reduced diameter section that locating surface 1 is drilled into fixture block body 2.Bore a diametric through hole at reduced diameter section near the position of locating surface 1 then, as the crack circular groove 5 at the 3 seam ends.Reprocess crack 3 at last, mill out a seam with circular peripheral-mill at the reduced diameter section of fixture block body 2, seam is parallel with circular groove 5 and on same plane, stitches the end and circular groove 5 and mills logical.After heat treatment get finished product at last.The finished product outward appearance as shown in Figure 2.
Fig. 3 is the prior art constructions synoptic diagram, and as can be seen from Figure 3, circular groove is not established in the bottom of crack 3, and crack 3 bottoms of prior art are the right angle, from cracking from the right angle easily.
Claims (3)
1. the crack bottom used of a vibrating string extensometer is provided with the fixture block of circular groove, comprises the fixture block body (2) that is provided with locating surface (1), and fixture block body (2) is provided with crack (3) and center counterbore (4), it is characterized in that: be provided with circular groove (5) at the bottom of the seam of crack (3).
2. the crack bottom of using according to the described vibrating string extensometer of claim 1 is provided with the fixture block of circular groove, and it is characterized in that: described circular groove (5) is parallel with crack (3).
3. the crack bottom of using according to the described vibrating string extensometer of claim 2 is provided with the fixture block of circular groove, and it is characterized in that: the diameter of described circular groove (5) is greater than the gap width of crack (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205594696U CN201819662U (en) | 2010-10-13 | 2010-10-13 | Clamp block with circular slot at bottom of clamp gap used for vibrating wire strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205594696U CN201819662U (en) | 2010-10-13 | 2010-10-13 | Clamp block with circular slot at bottom of clamp gap used for vibrating wire strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201819662U true CN201819662U (en) | 2011-05-04 |
Family
ID=43917612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205594696U Expired - Fee Related CN201819662U (en) | 2010-10-13 | 2010-10-13 | Clamp block with circular slot at bottom of clamp gap used for vibrating wire strain gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201819662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759701A (en) * | 2018-05-02 | 2018-11-06 | 中交第二航务工程局有限公司 | Optical fiber vibratory string combines and the adjustable surface-mount type sensor of initial value |
| CN111348137A (en) * | 2020-03-18 | 2020-06-30 | 重庆隆鑫机车有限公司 | Motorcycle handlebar pipe installation assembly and motorcycle |
-
2010
- 2010-10-13 CN CN2010205594696U patent/CN201819662U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759701A (en) * | 2018-05-02 | 2018-11-06 | 中交第二航务工程局有限公司 | Optical fiber vibratory string combines and the adjustable surface-mount type sensor of initial value |
| CN111348137A (en) * | 2020-03-18 | 2020-06-30 | 重庆隆鑫机车有限公司 | Motorcycle handlebar pipe installation assembly and motorcycle |
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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: 20110504 Termination date: 20171013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |