CN204630574U - A kind of drift indicator - Google Patents
A kind of drift indicator Download PDFInfo
- Publication number
- CN204630574U CN204630574U CN201520200047.2U CN201520200047U CN204630574U CN 204630574 U CN204630574 U CN 204630574U CN 201520200047 U CN201520200047 U CN 201520200047U CN 204630574 U CN204630574 U CN 204630574U
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- China
- Prior art keywords
- transparent shell
- angle
- water
- horizontal bottom
- described transparent
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Abstract
The utility model relates to a kind of drift indicator, comprise totally enclosed transparent shell, described transparent shell is made up of the horizontal bottom of bottom and the circular arc end face on top, described transparent shell is built with water, the whole described transparent shell of water underfill, the circular arc end face of described transparent shell is provided with the limbus line with described horizontal bottom concentric, and the number of degrees of described scale mark represent the angle of inclination of described horizontal bottom.The beneficial effects of the utility model are: design cost is low; Shell is transparent shell, and inner filling liquid is water; During measurement, drift indicator is placed on direct reading on test product dip plane, when the scale indicated by liquid level is " 0 ° ", illustrates by side horizontal, otherwise angle of inclination is the angle of scale mark instruction; Without the need to judging inclination direction in advance during measurement, directly can read in measuring process, and precision can be improved according to demand; The product of different accuracy, different size size can be customized according to demand.
Description
Technical field
The utility model relates to a kind of drift indicator.
Background technology
Bend doughnut installed surface at present, cave in or method that the measurement of section jerk value mainly adopts ruler to measure, concrete grammar is as follows: the ruler one being about 203-229 millimeter (8-9 inch) is placed on wheel inboard mounting surface.Attempt teetertottering within the scope of installed surface ruler, inboard mounting surface at least 3-4 diverse location repeats this step, if ruler can rock, illustrates that installed surface is out of shape, must more wheel change.Its measuring process all needs special messenger's operation, will have special training before measurement, possess skills require high, measuring process is complicated, longer, measurement error consuming time is comparatively large and cannot read the shortcomings such as concrete deformation values.
Utility model content
The utility model proposes a kind of drift indicator, the problems such as solving ruler measurement needs special messenger to operate, and Measuring Time is long, need judge incident angle in advance, and measuring error is large, cannot read concrete numerical value, and technical requirement is high.
The technical solution of the utility model is achieved in that
A kind of drift indicator, comprise totally enclosed transparent shell, described transparent shell is made up of the horizontal bottom of bottom and the circular arc end face on top, described transparent shell is built with water, the whole described transparent shell of water underfill, the circular arc end face of described transparent shell is provided with the limbus line with described horizontal bottom concentric, and the number of degrees of described scale mark represent the angle of inclination of described horizontal bottom.
When described horizontal bottom is in horizontality, in described transparent shell, the free face of water is on 0 ° of scale mark.
The beneficial effects of the utility model are:
1, design cost is low; Shell is transparent shell (can the selection of material: PMMA (polymethylmethacrylate)), and inner filling liquid is water.
2, digital independent is sensitive, convenient; During measurement, drift indicator is placed on direct reading on test product dip plane, when the scale indicated by liquid level is " 0 ° ", illustrates by side horizontal, otherwise angle of inclination is the angle of scale mark instruction;
3, tool operation is simple; Without the need to judging inclination direction in advance during measurement, directly can read in measuring process, and precision can be improved according to demand;
4, practical; The product of different accuracy, different size size can be customized according to demand.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the front view of the drift indicator described in the utility model embodiment;
Fig. 2 is the schematic diagram of measuring principle;
Fig. 3 is the schematic diagram that doughnut installed surface detects;
Fig. 4 is the schematic diagram of general workpiece measurement of dip angle.
In figure:
1, horizontal bottom; 2, circular arc end face; 3, scale mark; 4, liquid level; 5, center line; 6, measuring instrument; 7, tire; 8, general workpiece.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, drift indicator described in the utility model embodiment, comprise totally enclosed transparent shell, described transparent shell is made up of the horizontal bottom 1 of bottom and the circular arc end face 2 on top, described transparent shell is built with water, the whole described transparent shell of water underfill, the circular arc end face of described transparent shell is provided with the limbus line 3 with described horizontal bottom concentric, and the number of degrees of described scale mark represent the angle of inclination of described horizontal bottom.When described horizontal bottom is in horizontality, in described transparent shell, the free face of water is on 0 ° of scale mark.
Drift indicator measuring principle: utilize liquid capacitive principle, bottom measuring instrument inclination angle change but surface level is constant, thus extrapolate product inclination angle according to the change of measuring instrument high scale line length, as shown in Figure 2, setting dome radius surface is R, and measuring instrument xsect central angle is α, and center line 5 to the read text scale line place arc length of measuring instrument is a, the cavity top arc length of water underfill is L, can release inclination angle i and be:
∠i＝arcsin(2a-L)/2R，
Wherein i≤(α-arcsinL/R)/2
Illustrate: scale mark numerical value sets by above-mentioned formula, liquid level 4 when innermost circle scale mark and level aligns, and is measuring basis line, and setting reading is 0 °, outmost turns scale mark aligns with liquid bottom liquid level, for measuring maximal value (α-arcsinL/R)/2; The reading reading liquid level and the tangent scale mark in measuring instrument top during measurement is measured value.
As shown in Figure 3, doughnut installed surface detects: choose the measuring instrument that size is suitable, kept flat by tire, be placed on by measuring instrument on installed surface, check measurement angle, as reading angular value is not 0 °, then can judge squeegee action; For ensureing accuracy of judgement, can the several area measure of multiselect.
As shown in Figure 4, general workpiece measurement of dip angle: directly measuring instrument is placed on workpiece dip plane, the reading of the tangent scale mark of liquid level and measuring instrument top is measured value.
For 165R14LT tire: mounting points size 81mm*81mm, because tire seat surfaces distortion appears at two bolt mounting holes center sections usually, therefore can select model R=40mm (measuring instrument dome radius surface), the inclination angle that 4 mounting points measured respectively by the measuring instrument of measuring instrument xsect central angle alpha=120 ° can obtain a result.
Arc length (center line is to the read text scale line place arc length) a on measuring instrument scale mark arc of recess top and scale mark indicate angle i corresponding relation:
I
1＝∠1°,a
1＝28.62mm；
I
2＝∠2°,a
2＝29.32mm；
I
3＝∠3°,a
3＝30.02mm；
I
4＝∠4°,a
4＝30.71mm；
I
5＝∠5°,a
5＝31.40mm；
I
6＝∠6°,a
6＝32.10mm；
I
7＝∠7°,a
7＝32.80mm；
I
8＝∠8°,a
8＝33.48mm；
I
9＝∠9°,a
9＝34.18mm；
I
10＝∠10°,a
10＝34.86mm；
Wherein: 0 °≤i≤20 °.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a drift indicator, it is characterized in that: comprise totally enclosed transparent shell, described transparent shell is made up of the horizontal bottom of bottom and the circular arc end face on top, described transparent shell is built with water, the whole described transparent shell of water underfill, the circular arc end face of described transparent shell is provided with the limbus line with described horizontal bottom concentric, and the number of degrees of described scale mark represent the angle of inclination of described horizontal bottom.
2. drift indicator according to claim 1, is characterized in that: when described horizontal bottom is in horizontality, and in described transparent shell, the free face of water is on 0 ° of scale mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520200047.2U CN204630574U (en) | 2015-04-03 | 2015-04-03 | A kind of drift indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520200047.2U CN204630574U (en) | 2015-04-03 | 2015-04-03 | A kind of drift indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204630574U true CN204630574U (en) | 2015-09-09 |
Family
ID=54049591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520200047.2U Expired - Fee Related CN204630574U (en) | 2015-04-03 | 2015-04-03 | A kind of drift indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204630574U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444737A (en) * | 2015-11-29 | 2016-03-30 | 辽宁工程技术大学 | Method for measuring high-rise cylindrical objects with total station instrument |
| CN115493566A (en) * | 2022-11-16 | 2022-12-20 | 哈尔滨工业大学（威海） | Rock stratum true dip angle measuring device and method |
-
2015
- 2015-04-03 CN CN201520200047.2U patent/CN204630574U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444737A (en) * | 2015-11-29 | 2016-03-30 | 辽宁工程技术大学 | Method for measuring high-rise cylindrical objects with total station instrument |
| CN115493566A (en) * | 2022-11-16 | 2022-12-20 | 哈尔滨工业大学（威海） | Rock stratum true dip angle measuring device and method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20200403 |