CN104482845A - Roadway section measuring instrument and measuring method - Google Patents
Roadway section measuring instrument and measuring method Download PDFInfo
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- CN104482845A CN104482845A CN201410823216.8A CN201410823216A CN104482845A CN 104482845 A CN104482845 A CN 104482845A CN 201410823216 A CN201410823216 A CN 201410823216A CN 104482845 A CN104482845 A CN 104482845A
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- ruler
- withdrawable
- section
- rotating shaft
- telescope support
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a roadway section measuring instrument and a measuring method, and applies to underground coal mines. The roadway section measuring instrument comprises a full-circle protractor, a flexible bracket and a drawable ruler, wherein an angle indicating pointer is fixed at the end, close to a rotating shaft, of the drawable ruler, when the drawable ruler rotates around the rotating shaft, the degree of an included angle where the drawable ruler is located currently can be read out by means of the indicating pointer and the protractor, the drawable ruler is drawn out from the top end section by section until the ruler is contacted with the inner wall of a roadway, then the current length of the ruler can be read out through the tail section of the ruler, and a pedal base is arranged at the bottom end of the flexible bracket and used for fixing the instrument. The drawable ruler is rotated in the section of a tested roadway, so that multiple groups of lengths and degree pairs of angles, and the perimeter and the area of the section of the tested roadway are calculated by substituting the lengths and the degree pairs of angles into a formula.
Description
Technical field
The present invention relates to a kind of drift section measuring instrument and measuring method, be particularly useful for girth and the area of measuring drift section in mensuration of Mine Ventilation Resistance process.
Background technology
Need when measuring coal mine ventilation resistance to measure drift section girth and area, as the parameter of later stage resistance measuring and calculating.At present, be use tape to measure in tunnel after wide, middle height in the method for the measurement tunnel girth section that colliery scene is commonly used, then use respective formula to estimate according to different roadway shape.This measuring method is implemented simple, but deposits defect both ways, 1) when tunnel is higher, wider, survey crew needs by stock or operates in double harness and just can complete measurement, and thus operation is upper inconvenient; 2) because tunnel in reality can produce distortion in various degree usually, or drift section is not standard shape, will produce comparatively big error, make measurement result inaccurate when wide in using, middle high formula is estimated.
Instrument and equipment Vehicles Collected from Market directly being measured girth area also has a lot, but is mostly optical, electrical equipment, as laser ranging, surveys the instruments such as area.This quasi-instrument needs power supply usually, it not the coal mine equipment of essential safe type, and Working Environment of Underground Mine very severe, require high to device security, according to documentation requirements such as " Coal mine product safety mark tentative method ", this kind equipment, instrument must apply for the certification of coal peace, and carry out the high improvement of price, therefore, also cannot be applied directly to during colliery scene is measured and go.
Summary of the invention
For the deficiencies in the prior art part, provide a kind of structure simple, easy to use, do not need power supply, safe and reliable drift section measuring instrument and measuring method
For realizing above-mentioned technical purpose, drift section measuring instrument of the present invention comprises, wholecircle protractor, telescope support and withdrawable ruler, wholecircle protractor is front and back two panels angle gage structures, telescope support top is fixed on by rotating shaft, rotating shaft is also fixed with withdrawable ruler, wholecircle protractor and telescope support and withdrawable ruler coaxial by rotating shaft, protractor is not rotatable, withdrawable ruler can be rotated around the top of telescope support by rotating shaft, the structure of two panels before and after wholecircle protractor adopts, facilitate reading, withdrawable ruler is fixed with angle pointer near rotating shaft end, when withdrawable ruler rotates around rotating shaft, namely the angle number of degrees residing for current withdrawable ruler are read by pointer and protractor, telescope support bottom is provided with pedal base, described withdrawable ruler is multi-joint telescoping structure, every feast-brand mark has scale, withdrawable ruler is extracted out section by section by top in use, the length of its high scale instruction ruler top distance end rotating shaft.
Described wholecircle protractor and telescope support and withdrawable ruler coaxial by rotating shaft, protractor is rotatable, and withdrawable ruler can be rotated around the top of telescope support by rotating shaft; Described withdrawable ruler is detachable or facilitates elongate structure.
Use the tunnel section measurement method described in claim 1, it is characterized in that step is as follows:
A. first choose measured drift section, determine the position that the base plate of selected drift section is erect, marking this position is A
0point, afterwards drift section inwall mark measure point set
a 1 , A 2 ..., A n , wherein the number n of measuring point determines according to drift section true form and the required degree of accuracy of measurement, and n is larger, then measuring accuracy is higher;
B. the pedal base of drift section measuring instrument is used vertically to be fixed on by telescope support
a 0 point place, adjustment telescope support, make protractor height to flushing with gauger's sight line, now rotating shaft present position is designated as
opoint, by rotating withdrawable ruler around the shaft clockwise in drift section, and is stretched to corner A tunnel by withdrawable ruler from ruler top section by section
1point place;
C. read from withdrawable ruler active section end and record the length value of this position
lread simultaneously and record the angle angle between telescope support and withdrawable ruler that now angle pointer marks out on wholecircle protractor
α, thus draw one group of length, angular values to (
l 1 ,
α 1 );
D. keep telescope support motionless, rotate withdrawable ruler and adjust ruler length, make ruler tip contact mark measurement point and concentrate tunnel inwall
a 2 point, record now the length of withdrawable ruler, angular values to (
l 2 ,
α 2 ), repeat this step until drift section inwall marks measurement point set
a 1 , A 2 ..., A n all measuredly to complete;
E. all length, the angular values pair that obtain will be measured
substitute into cosine law formula:
obtain arbitrarily survey drift section approximate edges
length, in formula when
i=0time,
;
F. formula is passed through:
try to achieve drift section girth
l, wherein
, in formula
l 0 for the height of telescope support (2);
G. sine extended triangular shape area formula is used
computation and measurement point set
a 1 , A 2 ..., A n with residing for rotating shaft (6)
oeach triangle area that point surrounds, wherein
;
H. formula is used:
calculate drift section area
s, in formula
,
l 0 for the present level of telescope support.
Described when tunnel is higher, wider, its contact metope that can always stretch can be ensured by changing longer withdrawable ruler.
Beneficial effect: 1. these apparatus and method, safe and reliable, do not need power supply, one man operation is facilitated to complete the measurement collection of the basic data of drift section, save manpower, can measuring accuracy be improved by increasing measure-point amount, reaching the object of accurately measuring and calculating mine laneway girth and area; 2. adopt pure physical construction to use in mine laneway safely, and this device volume is gently little, structure is simple, thus is easy to carry at mine laneway middle and long distance and implement to measure.
Accompanying drawing explanation
Fig. 1 is that the present invention measures drift section schematic diagram;
Fig. 2 is drift section measurement mechanism structural representation of the present invention;
Fig. 3 is that the angle indicator of I part in Fig. 2 divides partial enlarged drawing;
Fig. 4 is the Length Indication part partial enlarged drawing of II part in Fig. 2.
In figure: 1-pedal base, 2-telescope support, 3-wholecircle protractor, 4-angle pointer, the withdrawable ruler of 5-, 6-rotating shaft, I: angle indicator divides, II: Length Indication part.
Embodiment
According to specific embodiment, the present invention will be further described below:
As described in Figure 1, drift section measuring instrument of the present invention, comprise wholecircle protractor 3, telescope support 2 and withdrawable ruler 5, wholecircle protractor 3 is front and back two panels angle gage structures, telescope support 2 top is fixed on by rotating shaft 6, rotating shaft 6 is also fixed with withdrawable ruler 5, it is coaxial that wholecircle protractor 3 and telescope support 2 and withdrawable ruler 5 pass through rotating shaft 6, protractor 3 is not rotatable, withdrawable ruler 5 can be rotated around the top of telescope support 2 by rotating shaft 6, the structure of two panels before and after wholecircle protractor 3 adopts, facilitate reading, withdrawable ruler 5 is fixed with angle pointer 4 near rotating shaft 6 end, when withdrawable ruler 5 rotates around rotating shaft 6, namely the angle number of degrees residing for current withdrawable ruler 5 are read by pointer 4 and protractor 3, telescope support 2 bottom is provided with pedal base 1, described withdrawable ruler 5 is multi-joint telescoping structure, every feast-brand mark has scale, withdrawable ruler 5 is extracted out section by section by top in use, the length of its high scale instruction ruler top distance end rotating shaft, described withdrawable ruler 5 is detachable or facilitates elongate structure.
As shown in Figure 2, a kind of tunnel section measurement method used described in claim 1, its step is as follows:
A. first choose measured drift section, determine the position that the base plate of selected drift section is erect, marking this position is A
0point, afterwards drift section inwall mark measure point set
a 1 , A 2 ..., A n , wherein the number n of measuring point determines according to drift section true form and the required degree of accuracy of measurement, and n is larger, then measuring accuracy is higher;
B. the pedal base 1 of drift section measuring instrument is used vertically to be fixed on by telescope support 2
a 0 point place, adjustment telescope support 2, make protractor 3 height to flushing with gauger's sight line, now rotating shaft 6 present position is designated as
opoint, by the withdrawable ruler 5 of clockwise 6 rotation around the shaft in drift section, and is stretched to corner A tunnel by withdrawable ruler 5 from ruler top section by section
1point place;
C. read from withdrawable ruler 5 active section end and record the length value of this position
lread simultaneously and record the angle angle between telescope support 2 and withdrawable ruler 5 that now angle pointer 4 marks out on wholecircle protractor 3
α, thus draw one group of length, angular values to (
l 1 ,
α 1 );
D. keep telescope support 2 motionless, rotate withdrawable ruler 5 and adjust ruler length, make ruler tip contact mark measurement point and concentrate tunnel inwall
a 2 point, record now the length of withdrawable ruler 5, angular values to (
l 2 ,
α 2 ), repeat this step until drift section inwall marks measurement point set
a 1 , A 2 ..., A n all measuredly to complete;
E. all length, the angular values pair that obtain will be measured
substitute into cosine law formula:
obtain arbitrarily survey drift section approximate edges
length, in formula when
i=0time,
;
F. formula is passed through:
try to achieve drift section girth
l, wherein
, in formula
l 0 for the height of telescope support 2;
G. sine extended triangular shape area formula is used
computation and measurement point set
a 1 , A 2 ..., A n with residing for rotating shaft 6
oeach triangle area that point surrounds, wherein
;
H. formula is used:
calculate drift section area
s, in formula
,
l 0 for the present level of telescope support 2.
Described when tunnel is higher, wider, its contact metope that can always stretch can be ensured by changing longer withdrawable ruler 5.
Fig. 3 gives I part in Fig. 2: the partial enlarged drawing that angle indicator divides.This part is made up of 360 degree of wholecircle protractors 3 and an angle pointer 4 be fixed on withdrawable ruler 5.Withdrawable ruler 5 can 6 rotations around the shaft.Wholecircle protractor 3 is fixing relative to rotating shaft 6 position cannot be rotated.Withdrawable ruler 5 is rotated to particular orientation, namely can be read the angle of ruler present position by angle pointer 4 and wholecircle protractor 3.
Fig. 4 gives II part in Fig. 2: the partial enlarged drawing of Length Indication part and withdrawable ruler 5.Withdrawable ruler 5 is made up of some joints, is extracted out section by section measure by taper, is finally the length of ruler top distance rotating shaft 6 at the scale of active section end display.
Claims (5)
1. a drift section measuring instrument, it is characterized in that: it comprises wholecircle protractor (3), telescope support (2) and withdrawable ruler (5), wholecircle protractor (3) is front and back two panels angle gage structure, interfixed by rotating shaft (6) and telescope support (2) top, rotating shaft (6) is also connected with withdrawable ruler (5), before and after wholecircle protractor (3) adopts, the structure of two panels facilitates reading, withdrawable ruler (5) is fixed with angle pointer (4) near rotating shaft (6) end, when withdrawable ruler (5) rotates around rotating shaft (6), namely the angle number of degrees residing for current withdrawable ruler (5) are read by pointer (4) and protractor (3), telescope support (2) bottom is provided with pedal base (1), described withdrawable ruler (5) is multi-joint telescoping structure, every feast-brand mark has scale, withdrawable ruler (5) is extracted out section by section by top in use, the length of its high scale instruction ruler top distance end rotating shaft.
2. drift section measuring instrument according to claim 1, it is characterized in that: described wholecircle protractor (3) and telescope support (2) and withdrawable ruler (5) coaxial by rotating shaft (6), protractor (3) is not rotatable, and withdrawable ruler (5) can around the top of telescope support (2) by (rotating shaft (6) rotates.
3. drift section measuring instrument according to claim 1, is characterized in that: described withdrawable ruler (5) is detachable or facilitates elongate structure.
4. exercise of power requires the tunnel section measurement method described in 1, it is characterized in that step is as follows:
A. first choose measured drift section, determine the position that the base plate of selected drift section is erect, marking this position is A
0point, afterwards drift section inwall mark measure point set
a 1 , A 2 ..., A n , wherein the number n of measuring point determines according to drift section true form and the required degree of accuracy of measurement, and n is larger, then measuring accuracy is higher;
B. the pedal base (1) of drift section measuring instrument is used vertically to be fixed on by telescope support (2)
a 0 point place, adjustment telescope support (2), make protractor (3) height to flushing with gauger's sight line, now rotating shaft (6) present position is designated as
opoint, rotates withdrawable ruler (5) by clockwise (6) around the shaft, and withdrawable ruler (5) is stretched to corner A tunnel section by section from ruler top in drift section
1point place;
C. read from withdrawable ruler (5) active section end and record the length value of this position
lread simultaneously and record the angle angle between telescope support (2) and withdrawable ruler (5) that now angle pointer (4) marks out on wholecircle protractor (3)
α, thus draw one group of length, angular values to (
l 1 ,
α 1 );
D. keep telescope support (2) motionless, rotate withdrawable ruler (5) and adjust ruler length, make ruler tip contact mark measurement point and concentrate tunnel inwall
a 2 point, record now the length of withdrawable ruler (5), angular values to (
l 2 ,
α 2 ), repeat this step until drift section inwall marks measurement point set
a 1 , A 2 ..., A n all measuredly to complete;
E. all length, the angular values pair that obtain will be measured
substitute into cosine law formula:
obtain arbitrarily survey drift section approximate edges
length, in formula when
i=0time,
;
F. formula is passed through:
try to achieve drift section girth
l, wherein
, in formula
l 0 for the height of telescope support (2);
G. sine extended triangular shape area formula is used
computation and measurement point set
a 1 , A 2 ..., A n with residing for rotating shaft (6)
oeach triangle area that point surrounds, wherein
;
H. formula is used:
calculate drift section area
s, in formula
,
l 0 for the present level of telescope support (2).
5. according to the tunnel section measurement method shown in claim 3, its feature exists: described when tunnel is higher, wider, can ensure its contact metope that can always stretch by changing longer withdrawable ruler (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823216.8A CN104482845A (en) | 2014-12-26 | 2014-12-26 | Roadway section measuring instrument and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410823216.8A CN104482845A (en) | 2014-12-26 | 2014-12-26 | Roadway section measuring instrument and measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104482845A true CN104482845A (en) | 2015-04-01 |
Family
ID=52757415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410823216.8A Pending CN104482845A (en) | 2014-12-26 | 2014-12-26 | Roadway section measuring instrument and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104482845A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135997A (en) * | 2015-10-10 | 2015-12-09 | 上海外高桥造船有限公司 | Pipeline included angle measurer |
| CN105333802A (en) * | 2015-11-28 | 2016-02-17 | 沈阳飞机工业（集团）有限公司 | Device and method for detecting included angle of laying of aircraft pipelines |
| CN105928440A (en) * | 2016-06-29 | 2016-09-07 | 河南理工大学 | Method for monitoring movement of exploitation top boards of three-dimensional physical simulation coal seam of mine |
| CN106323237A (en) * | 2016-10-26 | 2017-01-11 | 贵州盘江精煤股份有限公司 | Simple angulometer for measuring mining drilling angle and operation method thereof |
| CN109186547A (en) * | 2018-09-21 | 2019-01-11 | 中国矿业大学 | A kind of the cross measuring instrument and application method of drift section measurement |
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| CN2035866U (en) * | 1988-07-19 | 1989-04-12 | 王晓利 | Examining ruler |
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2014
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| JP2001221620A (en) * | 2000-02-10 | 2001-08-17 | Nippon Hodo Co Ltd | Optical scanning method for structural surface |
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Non-Patent Citations (1)
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| 皿田滋等: "巷道断面积测定仪的研制", 《国外采矿技术快报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135997A (en) * | 2015-10-10 | 2015-12-09 | 上海外高桥造船有限公司 | Pipeline included angle measurer |
| CN105333802A (en) * | 2015-11-28 | 2016-02-17 | 沈阳飞机工业（集团）有限公司 | Device and method for detecting included angle of laying of aircraft pipelines |
| CN105333802B (en) * | 2015-11-28 | 2018-06-08 | 沈阳飞机工业（集团）有限公司 | Aircraft pipe laying angle detection device and detection method |
| CN105928440A (en) * | 2016-06-29 | 2016-09-07 | 河南理工大学 | Method for monitoring movement of exploitation top boards of three-dimensional physical simulation coal seam of mine |
| CN105928440B (en) * | 2016-06-29 | 2018-06-05 | 河南理工大学 | A kind of mine solid physical analogy seam mining top plate mobile monitoring method |
| CN106323237A (en) * | 2016-10-26 | 2017-01-11 | 贵州盘江精煤股份有限公司 | Simple angulometer for measuring mining drilling angle and operation method thereof |
| CN109186547A (en) * | 2018-09-21 | 2019-01-11 | 中国矿业大学 | A kind of the cross measuring instrument and application method of drift section measurement |
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Application publication date: 20150401 |
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