CN208443309U - A kind of coal rock layer tool for measuring thickness of coal mine fully-mechanized mining working - Google Patents
A kind of coal rock layer tool for measuring thickness of coal mine fully-mechanized mining working Download PDFInfo
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- CN208443309U CN208443309U CN201821103887.7U CN201821103887U CN208443309U CN 208443309 U CN208443309 U CN 208443309U CN 201821103887 U CN201821103887 U CN 201821103887U CN 208443309 U CN208443309 U CN 208443309U
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Abstract
The utility model discloses a kind of coal rock layer tool for measuring thickness of coal mine fully-mechanized mining working, including shrinkage-rule, fixed rotary shaft and two scalable measurement feet, it is hinged that two scalable measurement foot one end pass through fixed rotary shaft, shrinkage-rule box body end is arranged on the scalable measurement foot of any bar, shrinkage-rule hook end is fixedly connected with another scalable measurement foot, the measurement to coal petrography thickness can be realized without station below coal wall by survey crew, even if face roof condition is poor, it can also be measured using the measuring tool of the utility model, measurement result is accurate and safe operation, measurement work can be realized on working surface hydraulic support top beam without hanging, by reading the data on shrinkage-rule, principle according to the height of similar triangles than being equal to bottom edge ratio, the working face mining height or coal rock layer thickness that need to be measured can be calculated.
Description
Technical field
The utility model relates to mining Technology Underground Coal Mine more particularly to a kind of coal rock layer thickness of coal mine fully-mechanized mining working
Measuring tool.
Background technique
Down-hole combined mining working measures mining thickness at present, generallys use suspension ruler method, that is, passes through measurement working face top
Then beam obtains the face of adopting plus hydraulic support top beam height and bracket base to the distance of hydraulic support foundation at a distance from bottom plate
Mining thickness or coal seam thickness, but this method has the following disadvantages and insufficient in actual application:
(1) it needs to measure below engineers and technicians or coal pillar robbing group inspector to coal wall using this method, and
It needs that work can be measured when fully-mechanized mining working is shut down and produced, when encountering coal seam conditions bad (easy slice caving, roof fall),
Personnel are can not to stand to measure in coal wall side, and measurement difficulty is big.
It (2) is that cannot accurately measure coal seam using this method when working face coal seam thickness changes or do not plan a successor
Or rock thickness.
(3) tape measure that suspension ruler method uses at present is not easy to be suspended on above hydraulic support front-axle beam, even if also can in suspension
There is deviation in final measurement data caused by the position difference hung by different personnel.
It is, therefore, desirable to provide the coal rock layer tool for measuring thickness and measurement method of a kind of New Coal Mine fully-mechanized mining working, with
Meets the needs of mining Technology Underground Coal Mine development.
Utility model content
The technical problem solved by the utility model is:to provide a kind of coal rock layer thickness measure works of New Coal Mine fully-mechanized mining working
Tool and measurement method, existing measurement difficulty is big when measuring mining thickness to traditional suspension ruler method, measurement it is inaccurate with
And the problem that data error is big.
The technical solution of the utility model includes:
A kind of coal rock layer tool for measuring thickness of coal mine fully-mechanized mining working, including shrinkage-rule, fixed rotary shaft and two can
Flexible measurement foot, the scalable measurement foot one end of described two is hinged by fixed rotary shaft, and the shrinkage-rule box body end is set
It sets on the scalable measurement foot of any bar, the shrinkage-rule hook end is fixedly connected with another scalable measurement foot.
Scale is provided on the scalable measurement foot.
A kind of coal rock layer tool for measuring thickness of coal mine fully-mechanized mining working, measurement method the following steps are included:
Step 1: two scalable measurement feet are extended to working face coal below hydraulic support shielding by survey crew station
Wall；
Step 2: two scalable measurement feet being opened, stretch two scalable measurement sole ends respectively to coal petrography to be surveyed
Layer top and bottom；
Step 3: reading the data on shrinkage-rule, the principle according to the height of similar triangles than being equal to bottom edge ratio
The working face mining height or coal rock layer thickness that need to be measured is calculated.
The utility model has the beneficial effects that provide a kind of New Coal Mine fully-mechanized mining working coal rock layer tool for measuring thickness and
Measurement method has the advantage that compared with prior art
(1) measurement to coal petrography thickness can be realized without station in survey crew below coal wall, even if face roof item
Part is poor, can also be measured using the measuring tool of the utility model, and measurement result is accurate and safe operation.
(2) measurement work can be realized on working surface hydraulic support top beam without hanging, by reading on shrinkage-rule
Data, according to the height of similar triangles than be equal to bottom edge ratio principle, can be calculated the working face mining height that need to be measured or
Coal rock layer thickness, will not because between working surface hydraulic support and coal wall drop and inclination angle due to influence coal (rock) layer thickness measure.
(3) of less demanding to survey crew, i.e., large error will not be caused because different personnel measure.
Detailed description of the invention
Fig. 1 is the utility model measuring tool structural schematic diagram；
Fig. 2 is to measure schematic diagram using measuring tool described in the utility model；
It is identified in figure: 1, shrinkage-rule, 2, scalable measurement foot, 3, fixed rotary shaft, 4, coal seam, 5, hydraulic support.
Specific embodiment
The utility model is described further with reference to the accompanying drawing, a kind of coal mine fully-mechanized mining work described in the utility model
The coal rock layer tool for measuring thickness in face, including shrinkage-rule 1, fixed rotary shaft 3 and two scalable measurement feet 2, described two
Scalable 2 one end of measurement foot passes through fixed rotary shaft 3 hingedly, and two scalable measurement feet 2 can pass through fixed rotary shaft 3 and be unfolded
And closing, the 1 box body end of shrinkage-rule are arranged on the scalable measurement foot 2 of any bar, the 1 hook end of shrinkage-rule with separately
One scalable measurement foot 2 is fixedly connected.
It is provided with scale on the scalable measurement foot 2, can be used to calculate by the scale read on scalable foot 2
The thickness of coal rock layer.
A kind of coal rock layer tool for measuring thickness of coal mine fully-mechanized mining working, measurement method the following steps are included:
Step 1: two scalable measurement feet 2 are extended to working face coal below the shielding of hydraulic support 5 by survey crew station
Wall；
Step 2: two scalable measurement feet 2 being opened, stretch two scalable 2 bottom ends of measurement foot respectively to need to extremely survey coal
At the top and bottom of rock stratum；
Step 3: reading the data on shrinkage-rule 1, the principle according to the height of similar triangles than being equal to bottom edge ratio
The working face mining height or coal rock layer thickness that need to be measured is calculated.
Embodiment 1: face coal seam height is adopted in measurement as shown in Figure 2, and shrinkage-rule 1 is installed on scalable measurement foot 2 first,
Scalable measurement 2 bottom end of foot is set to arrive the four of fixed 3 vertical range of rotary shaft to the vertical range shrinkage-rule 1 of fixed rotary shaft 3
Times, as shown in Fig. 2, the vertical range of scalable measurement 2 bottom end of foot to fixed rotary shaft 3 is arranged to 4D, shrinkage-rule 1 is arrived
Fixed 3 vertical range of rotary shaft is arranged to D, and two scalable measurement feet 2 are then unfolded, make two scalable 2 bottom ends of measurement foot
It is stretched respectively to need to extremely survey at the top and bottom of coal rock layer, the reading L on shrinkage-rule 1 is read, according to the height of similar triangles ratio etc.
In the principle of bottom edge ratio, proportion of utilization relationship is multiplied by corresponding proportion, therefore calculating coal seam height is 4L.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model, therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (2)
1. a kind of coal rock layer tool for measuring thickness of coal mine fully-mechanized mining working, it is characterised in that: including shrinkage-rule (1), fixed rotation
Shaft (3) and two scalable measurement feet (3), scalable measurement foot (2) one end of described two pass through fixed rotary shaft (3) hinge
Connect, the shrinkage-rule (1) box body end be arranged on the scalable measurement foot (2) of any bar, the shrinkage-rule (1) hook end and
Another scalable measurement foot (2) is fixedly connected.
2. a kind of coal petrography tool for measuring thickness of coal mine fully-mechanized mining working according to claim 1, it is characterised in that: described
Scalable measurement foot (2) on be provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821103887.7U CN208443309U (en) | 2018-07-12 | 2018-07-12 | A kind of coal rock layer tool for measuring thickness of coal mine fully-mechanized mining working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821103887.7U CN208443309U (en) | 2018-07-12 | 2018-07-12 | A kind of coal rock layer tool for measuring thickness of coal mine fully-mechanized mining working |
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| Publication Number | Publication Date |
|---|---|
| CN208443309U true CN208443309U (en) | 2019-01-29 |
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| CN201821103887.7U Active CN208443309U (en) | 2018-07-12 | 2018-07-12 | A kind of coal rock layer tool for measuring thickness of coal mine fully-mechanized mining working |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534642A (en) * | 2018-07-12 | 2018-09-14 | 贵州盘江精煤股份有限公司 | A kind of the coal rock layer tool for measuring thickness and measurement method of coal mine fully-mechanized mining working |
-
2018
- 2018-07-12 CN CN201821103887.7U patent/CN208443309U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534642A (en) * | 2018-07-12 | 2018-09-14 | 贵州盘江精煤股份有限公司 | A kind of the coal rock layer tool for measuring thickness and measurement method of coal mine fully-mechanized mining working |
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