CN202119381U - Dial gauge used for measurement - Google Patents
Dial gauge used for measurement Download PDFInfo
- Publication number
- CN202119381U CN202119381U CN2011202366300U CN201120236630U CN202119381U CN 202119381 U CN202119381 U CN 202119381U CN 2011202366300 U CN2011202366300 U CN 2011202366300U CN 201120236630 U CN201120236630 U CN 201120236630U CN 202119381 U CN202119381 U CN 202119381U
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- CN
- China
- Prior art keywords
- liquid storage
- pipe
- measuring head
- storage pipe
- displacement
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- Expired - Fee Related
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a dial gauge used for the measurement. The dial gauge includes a liquid storage pipe and an indicating pipe, wherein the liquid storage pipe is communicated with the indicating pipe, the internal diameter of the liquid storage pipe is larger than the internal diameter of the indicating pipe, the lower part of the liquid storage pipe is provided with an elastic sealed film, and a measuring head is arranged below the elastic sealed film. The pipe wall of the indicating pipe is provided with scales. In use, the dial gauge for the measurement is arranged on a flat board, the measuring head is in contact with the flat board. The measuring head is moved on the flat board, when the measuring head generates a tiny displacement because of the unevenness of the flat board, a raised displacement of the liquid surface in the indicating pipe is measured, and then the displacement generated by the measuring head can be calculated out based on a formula [delta] L2= (D/d) 2[delta] L1, wherein the [delta] 12 is the displacement generated by the measuring head, the D is the internal diameter of the liquid storage pipe, the d is the internal diameter of the indicating pipe, the [delta] L1 is the raised displacement of the liquid surface in the indicating pipe. The dial gauge is suitable for a workshop and a metering chamber, and especially suitable for the comparison measurement on the flat board.
Description
Technical field
The utility model relates to a kind of measurement and uses indicating gauge.
Background technology
At present, indicating gauge is suitable for the workshop, measuring room uses, and is particularly suitable for the measurement of on flat board, making comparisons, for example: survey form and position tolerance and axial or diameter run-out.Traditional indicating gauge is generally the indicating gauge that adopts the gear structure for amplifying, and its structure is comparatively complicated, and cost is higher, and damages easily.
Summary of the invention
To above-mentioned prior art, the utility model provides a kind of measurement with being indicating gauge.
The utility model is realized through following technical scheme:
Indicating gauge is used in a kind of measurement, comprises liquid storage pipe and inditron, and wherein, liquid storage pipe is communicated with inditron, and the internal diameter of liquid storage pipe is greater than the internal diameter of inditron, and the liquid storage pipe bottom is provided with elastic sealing film, and the elastic sealing film below is provided with measuring head.
Said inditron tube wall is provided with scale.
During use, need on flat board, make comparisons when measuring, the measurement of the utility model is placed on the flat board with indicating gauge; Measuring head contacts with dull and stereotyped, and traverse measurement head on flat board is when making measuring head produce micro-displacement because of dull and stereotyped injustice; Under the effect of elastic sealing film, the liquid in the liquid storage pipe flows into inditron, because the internal diameter of inditron is much smaller than the internal diameter of liquid storage pipe; So though the displacement that produces is very little, the liquid bigger displacement of can in inditron, rising.Measure the displacement that liquid level rises in the inditron, then according to formula
ΔL
2＝(D/d)
2ΔL
1…(I)
Just can obtain the displacement that measuring head produces, wherein, Δ L
2Be the displacement that measuring head produces, D is the internal diameter of liquid storage pipe, and d is the internal diameter of inditron, Δ L
1Displacement for liquid level rising in the inditron.
(I) can find out by formula, micro displacement Δ L
1,, scalable to (D/d) through selecting D, d
2Doubly, for example: d=1mmD=10mm then: (D/d)
2=100; As measuring head displacement 1mm, in inditron liquid displacement 100mm.
Formula (I) is obtained by following formula to calculating:
Because of liquid is not compressed, be the volume that upwards produces the liquid that displacement discharges because of measuring head from liquid storage pipe so get into the volume of the liquid of inditron, so S
DΔ L
1=S
dΔ L
2And S
D=л (D/2)
2, S
d=л (d/2)
2, after three formula merge, both can obtain formula (I), wherein, S
DBe the cross-sectional area of liquid storage pipe, S
dCross-sectional area for inditron.
The utility model is simple in structure, and result of use is good, owing to adopted the elastic membrane sealing film, thus guaranteed ergometry＜0.686N (70g).
The indicating gauge of the utility model is suitable for the workshop, measuring room uses, and is particularly suitable for the measurement of on flat board, making comparisons.For example: survey form and position tolerance and axial or diameter run-out.Adopt the indicating gauge of gear structure for amplifying to compare with tradition, the utlity model has advantages such as simple in structure, that making is easy, with low cost, be quick on the draw.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Wherein, 1, liquid storage pipe; 2, inditron; 3, elastic sealing film; 4, measuring head; 5, scale.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Indicating gauge is used in a kind of measurement, comprises liquid storage pipe 1 and inditron 2, and is as shown in Figure 1; Wherein, liquid storage pipe 1 is communicated with inditron 2, and the internal diameter of liquid storage pipe 1 is greater than the internal diameter of inditron 2; Liquid storage pipe 1 bottom is provided with elastic sealing film 3, and elastic sealing film 3 belows are provided with measuring head 4.
Said inditron 2 tube walls are provided with scale 5.
During use, need on flat board, make comparisons when measuring, the measurement of the utility model is placed on the flat board with indicating gauge; Measuring head 4 contact with dull and stereotyped, and traverse measurement 4 on flat board, when because of dull and stereotyped uneven when making measuring head 4 generation micro-displacements; Under the effect of elastic sealing film 3, the liquid in the liquid storage pipe 1 flows into inditron 2, because the internal diameter of inditron 2 is much smaller than the internal diameter of liquid storage pipe 1; So though the displacement that produces is very little, the liquid bigger displacement of can in inditron 2, rising.Measure the displacement that liquid level rises in the inditron 2, then according to formula
ΔL
2＝(D/d)
2ΔL
1…(I)
Just can obtain the displacement that measuring head 4 produces, wherein, Δ L
2Be the displacement that measuring head 4 produces, D is the internal diameter of liquid storage pipe 1, and d is the internal diameter of inditron 2, Δ L
1Displacement for liquid level rising in the inditron 2.
Claims (2)
1. indicating gauge is used in a measurement, it is characterized in that: comprise liquid storage pipe and inditron, wherein, liquid storage pipe is communicated with inditron, and the internal diameter of liquid storage pipe is greater than the internal diameter of inditron, and the liquid storage pipe bottom is provided with elastic sealing film, and the elastic sealing film below is provided with measuring head.
2. indicating gauge is used in a kind of measurement according to claim 1, it is characterized in that: said inditron tube wall is provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202366300U CN202119381U (en) | 2011-07-06 | 2011-07-06 | Dial gauge used for measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202366300U CN202119381U (en) | 2011-07-06 | 2011-07-06 | Dial gauge used for measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119381U true CN202119381U (en) | 2012-01-18 |
Family
ID=45460440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202366300U Expired - Fee Related CN202119381U (en) | 2011-07-06 | 2011-07-06 | Dial gauge used for measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119381U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609133A (en) * | 2015-01-24 | 2015-05-13 | 山东科技大学 | System and method for detecting abrasion to scraper conveyer middle trough middle plate |
| CN107246837A (en) * | 2017-05-19 | 2017-10-13 | 来安县华鹏摩擦材料厂 | A kind of brake clutch piece roughness detection equipments |
-
2011
- 2011-07-06 CN CN2011202366300U patent/CN202119381U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609133A (en) * | 2015-01-24 | 2015-05-13 | 山东科技大学 | System and method for detecting abrasion to scraper conveyer middle trough middle plate |
| CN104609133B (en) * | 2015-01-24 | 2017-01-11 | 山东科技大学 | System and method for detecting abrasion to scraper conveyer middle trough middle plate |
| CN107246837A (en) * | 2017-05-19 | 2017-10-13 | 来安县华鹏摩擦材料厂 | A kind of brake clutch piece roughness detection equipments |
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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: 20120118 Termination date: 20130706 |