CN207315365U - A kind of telescopic coal body aperture measurement device of mining gauge head - Google Patents
A kind of telescopic coal body aperture measurement device of mining gauge head Download PDFInfo
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- CN207315365U CN207315365U CN201721288315.6U CN201721288315U CN207315365U CN 207315365 U CN207315365 U CN 207315365U CN 201721288315 U CN201721288315 U CN 201721288315U CN 207315365 U CN207315365 U CN 207315365U
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- slide cartridge
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Abstract
The utility model provides a kind of mining telescopic coal body aperture measurement device of gauge head, including cylinder, cylinder one end is radially equipped with dial plate, barrel is provided with cylinder gauge head hole, gauge head passes through cylinder gauge head hole, cylinder is exposed in one end, and the other end is connected in cylinder and dial plate is directed toward in the cross bar parallel with cylinder inner wall, cross bar one end；The present apparatus is radial symmetric structure, and same apparatus is symmetrical arranged in the opposite side of cylinder；Slide cartridge is communicated between cylinder gauge head hole, slide cartridge middle part is baffled, and spring is equipped between slide cartridge Internal baffle and cross bar, slide cartridge cross bar slideway is radially provided with slide cartridge barrel, cross bar can be slided along slide cartridge cross bar slideway, and gauge head can slide in slide cartridge；Gauge head is pressed to when being moved in cylinder, drives cross bar move to cylinder axis direction, and cross bar is directed toward the different scales on dial plate during the motion, and the diameter of drilling can be conversed according to cross bar direction scale.The device can go deep into the diameter that total length hole is surveyed in coal body drilling, the accurate diameter change reflected in coal body drilling.
Description
Technical field
It the utility model is related to coal mine down-hole drilling diameter measurement technical field, and in particular to a kind of mining gauge head is telescopic
Coal body aperture measurement device.
Background technology
In geotechnical engineering field, often it is related to bore operation.During foundation pile drilling construction, the aperture of pore-forming, hole depth etc.
It is larger to foundation pile carrying stabilizing influence, its basic data is surveyed usually through hole quality detector, to detect whether pore-forming meets
Design standard.If disclosed patent (CN201610983056.2, CN201710419727.7, CN201610642298.5) is to stake
Examined in terms of the hole qualities such as hole aperture by contact or non-contact, mechanical or non-mechanical method to realize that foundation pile drills
The new exploration of survey means.With drilling technique similar in drilling technology field, the measuring instrument of hole diameter is also evolving progress,
The amount arm technologies for using contact, such as disclosed patent (CN201410594486.6, CN201310091163.0. more
CN201310092127.6, CN201310172590.1).
In underground coal mine, drilling construction operation is extremely frequent, the drilling as needed for supporting, mash gas pumping drilling, destressing borehole,
Inlet well, blows out drilling etc..Drilling accounts for the overwhelming majority of the total punching amount in colliery wherein needed for suspension roof support and gas pumping.
It is related to bore diameter, bolt diameter, " three footpaths mate " problem of Anchor Agent diameter in terms of suspension roof support, gas pumping relates generally to
The problem of boring aperture is with extracting result relation, for problem above, boring aperture Accurate Determining is to ensure that supporting is stablized and taken out
Adopt the premise of effect.Therefore, coal body bore diameter is accurately measured, varying aperture is held in time, to mine bolt supporting and gas
Extraction tool is of great significance.
Though foundation pile boring aperture is quickly grown with drilling well caliper logging technology in ground field, at this stage underground coal mine institute
The measuring method of the coal body bore diameter of use is mostly empirical estimation method, and related equipment is rarely seen.Scene is generally according to drill bit
Size surveys coal body hole surface diameter to estimate the coal body drilling diameter after drill bit completes drilling, or by ruler, it is difficult to surveys coal body
Bore inner diameter.But since the size in aperture is not only determined by bit diameter, more influenced by other side such as rock property,
Rate of penetration, drilling time, drilling pressure etc., further, since drilling coal face stress and coal body deep stress are inconsistent, coal
Body aperture is often gradually changed by drilling superficial part to deep.So with single bit size index come estimate boring aperture or
It is inappropriate to characterize whole coal body boring aperture with surface diameter, and it is unqualified to be easy to cause underground coal mine " three footpaths mate ", anchor
Bar support anchoring power is low, the serious problems such as gas pumping effect and expected discrepancy are big, it is desirable to be able to which device measured directly comes
Reflect true coal body aperture.
Simultaneously as underground coal mine is also easy to produce the uneven diminution in aperture, wall surface of the hole is not by the coal that medium is soft broken is bored
Smooth, the problems such as rough, big rise and fall, the deep in hole and inconsistent superficial part aperture, aperture measurement device, which should have, surveys variable orifice
Footpath ability, adapts to wall fluctuating, deeply can entirely drill and survey total length tunneling boring diameter.In addition, coal mine down-hole drilling diameter one
As it is smaller, should ensure that the exquisitenessization of plant bulk, reduce installation cost.
In conclusion accurately measurement underground coal mine coal body boring aperture imitates the three footpaths mate and gas pumping of suspension roof support
Fruit prediction is of great significance.Experience is used in the field to estimate drill bit pore-forming aperture or only survey pore-forming surface diameter at this stage
Pre- gaging hole interior diameter, simultaneously because the drilling environment of drilling influences, also there is rising and falling into wall surface of the hole, aperture is shunk for coal body drilling
Uneven, the problems such as depth portion aperture in hole is inconsistent, there is presently no the telescopic coal body aperture measurement device of gauge head and method.
Utility model content
The purpose of this utility model is：A kind of telescopic coal body aperture measurement device of mining gauge head is proposed, available for colliery
The accurate measurement of underground coal body boring aperture, is suitable for out-of-flatness in hole, the wall of big rise and fall, can probing depth bore dia, lead to
The directly measurement of contact wall surface of the hole is crossed to reflect true aperture.
To achieve the above object, the utility model adopts the following technical solution：
A kind of telescopic coal body aperture measurement device of mining gauge head, including cylinder, one end of cylinder are equipped with cylinder front apron,
The end probes into drilling, and the other end is radially equipped with the first dial plate；The barrel of cylinder is provided with the first cylinder gauge head hole, and the first gauge head is worn
Cross the first cylinder gauge head hole, one end is exposed to cylinder, and the other end is connected in cylinder and parallel with cylinder inner wall first
The first dial plate is directed toward in cross bar, one end of the first cross bar；Described device is radial symmetric structure, is symmetrical arranged in the opposite side of cylinder
There are the second cylinder gauge head hole, the second gauge head, the second cross bar, the second dial plate；In the first cylinder gauge head hole and the second cylinder gauge head hole
Between be communicated with slide cartridge, be equipped with baffle in the middle part of slide cartridge, the first spring, the cylinder of slide cartridge be equipped between slide cartridge Internal baffle and the first cross bar
The first slide cartridge cross bar slideway is radially provided with wall, the first cross bar can be slided along the first slide cartridge cross bar slideway, and the first gauge head can be in cunning
Slided in cylinder；During nature, the first cross bar is close to cylinder inner wall under the action of the first spring, and its one end is directed at the first dial plate
On D/2+H scales, at this time the first gauge head be in maximum exposed state；D represents the outside diameter of cylinder, and H represents the first gauge head in cunning
Range in cylinder；When the first gauge head, which is pressed to, to be moved in cylinder, the first gauge head drives the first cross bar to cylinder axis side
To movement, the first cross bar is directed toward the different scales on the first dial plate during the motion, when the first gauge head is fully retracted cylinder,
First cross bar is directed toward the D/2 scales of the first dial plate；Likewise, it is equipped with second spring, the second slide cartridge cross bar cunning in device opposite side
Road.
Further, the cylinder and the first cross bar, the length of the second cross bar can be adjusted according to coal body drillable length.
Further, the first cylinder gauge head hole, the second cylinder gauge head pitch-row are less than first from cylinder front apron length
The maximum protruded length h of gauge head, the second gauge head.
Further, first gauge head, the maximum protruded length h of the second gauge head exist equal to the first gauge head, the second gauge head
Range H in slide cartridge.
Beneficial effect：The device can go deep into the diameter that total length hole is surveyed in whole coal body drilling, accurate to reflect inside and outside coal body drilling
Diameter change, accurately measuring problem to the coal body bore diameter involved by the three footpaths mate and gas pumping in the field of colliery has
Good solution.It is suitable for wall big rise and fall, the drilling of rough out-of-flatness coal body, measurable depth hole, essence simple in structure
Ingeniously, cost is relatively low.
Brief description of the drawings
Attached drawing 1 is the structural front view of the utility model；
Attached drawing 2 is structural front view A-A profiles of the utility model；
Attached drawing 3 is structural front view B-B profiles of the utility model；
In figure：1-country rock, 2-hole wall, 3-drilling, the gauge heads of 4a-first, the gauge heads of 4b-second, the gauge heads of 5a-first are horizontal
Hole, the gauge head cross-drilled holes of 5b-second, the gauge heads of 6a-first bottom block, the gauge heads of 6b-second bottom block, 7-cylinder, 8a-first justify
Cylinder gauge head hole, the cylinder gauge heads of 8b-second hole, the cross bars of 9a-first, the cross bars of 9b-second, 10-slide cartridge, the springs of 11a-first,
11b-second spring, 12-slide cartridge baffle, 13-cylinder front apron, the dial plates of 14a-first, the dial plates of 14b-second, 15-table
Disk cross bar slideway, the slide cartridge cross bar slideways of 16a-first, the slide cartridge cross bar slideways of 16b-second, the pointers of 17a-first, 17b-the
Two pointers, the scales of 18a-first, the scales of 18b-second, the readings of 19a-first, the readings of 19b-second, 20-hand of dial are whole
Only area.
Embodiment
To describe the technology contents of the utility model, the objects and the effects in detail, below in conjunction with embodiment and match somebody with somebody
Attached drawing is closed to be explained.
A kind of telescopic aperture measurement device of gauge head of the utility model includes：First gauge head 4a, the second gauge head 4b, first
Gauge head cross-drilled hole 5a, the second gauge head cross-drilled hole 5b, the first gauge head bottom block 6a, the second gauge head bottom block 6b, cylinder 7, the first cylinder are surveyed
Head bore 8a, the second cylinder gauge head hole 8b, the first cross bar 9a, the second cross bar 9b, slide cartridge 10, the first spring 11a, second spring 11b,
Slide cartridge baffle 12, cylinder front apron 13, the first dial plate 14a, the second dial plate 14b, dial plate cross bar slideway 15, the first slide cartridge cross bar are slided
Road 16a, the second slide cartridge cross bar slideway 16b, the first pointer 17a, the second pointer 17b.
Cylinder 7 is radially having a symmetrical cylindrical gauge head hole 8a, 8b, the slide cartridge 10 below hole inside connection cylinder 7, in slide cartridge 10
The isolation of slide cartridge baffle 12 is contained in portion becomes independent two parts up and down, while 10 radial direction of slide cartridge opens slide cartridge cross bar slideway 16.Firstth,
Second dial plate 14a, 14b is pasted on 7 side of cylinder with binding agent.
The first spring 11a is placed inside to slide cartridge 10.First gauge head 4a passes through the first cylinder gauge head hole 8a, the first gauge head 4a
Diameter be slightly less than the first cylinder gauge head hole 8a apertures.The first gauge head 4a, the first gauge head bottom block 6a of light pressure sticks into the first spring
11a tops, the height of the first gauge head bottom block 6a is more than height during the first spring 11a most compressed states, at this time by first
Cross bar 9a one end pastes the first pointer 17a at the end through the first gauge head cross-drilled hole 5a straight through dial plate cross bar slideway 15, and first
The cross bar 9a other ends stay 1~2cm on the left of the first gauge head cross-drilled hole 5a.7 and first cross bar 9a length of cylinder can be according to drillable length
It is adjusted.First cross bar 9a and the first gauge head 4a is close to 7 inner wall of cylinder under the effect of the first spring 11a elastic force, and at this time the
One gauge head 4a is in maximum exposed state.
Similarly, to placing second spring 11b, the second gauge head 4b inside slide cartridge 10 through the second cylinder gauge head hole 8b, second
The diameter of gauge head 4b is slightly less than the second cylinder gauge head hole 8b, and aperture gently presses the second gauge head 4b, the second gauge head bottom block 6b to stick into
Two spring 11b tops, the height of the second gauge head bottom block 6b are more than height during second spring 11b most compressed states, at this time
By second cross bar 9b one end through the second gauge head cross-drilled hole 5b straight through dial plate cross bar slideway 15, and the second pointer is pasted at the end
17b, the second cross bar 9b other ends stay 1~2cm on the left of the second gauge head cross-drilled hole 5b.Second cross bar 9b and the second gauge head 4b are second
Under the effect of spring 11b elastic force, it is close to 7 inner wall of cylinder, the second gauge head 4b is in maximum exposed state at this time.
Cylinder gauge head hole 8a, 8b are less than gauge head 4a, 4b maximum protruded length apart from 13 length of cylinder front apron.Cylinder front
Before plate 13 is pasted on cylinder 7 by cementing agent.During gauge head 4a, 4b are slided up and down along slide cartridge 10, drive cross bar 9a's, 9b is upper
Lower movement, the pointer 17a, 17b of cross bar 9a, 9b end faces show reading 19a, 19b by scale 18a, 18b, must can be bored through conversion
3 diameter of hole.
The method that above device measures aperture, includes the following steps：
(1) device is slowly extend into the drilling 3 in completed aperture to be measured in country rock 1, in device level
The heart should be with 3 centers of drilling on same line.
(2) 3 hole walls 2 of drilling are not completely smooth smooth, and gauge head 4a, 4b can stretch at 2 fluctuating of borehole wall, gauge head
4a, 4b drive the up and down motion of cross bar 9a, 9b along slide cartridge about 10 during telescopic slide, pointer 17a, 17b on cross bar 9a, 9b
It can indicate corresponding scale 18a, 18b.
(3) when device is in drilling 3, two gauge head 4a, when 4b leaks out the state of 7 maximum height of cylinder, the device at this time
It is 7 outer diameter D of cylinder and 2 times of gauge head 4a, 4b in the sum of range H of slide cartridge that maximum diameter of hole, which can be surveyed, as two gauge heads 4a, 4b
It is entirely retracted in cylinder 7, it is 7 outer diameter D of cylinder that can survey minimum-value aperture at this time, and device range is D~D+2H.
(4) according to required precision, upper lower burrs respectively divide 5 master calibrations, and due to two gauge head 4a, 4b is completely independent, mutually not
Influence, for ease of calculated diameter, upper dial plate 14a and lower dial plate 14b difference reading 19a, 19b, upper and lower dial reading 19a, 19b it
With for aperture diameter.
(5) when upper dial plate 14a pointers 17a readings 19a is D/2+H/2, it is D/2+ that lower dial plate 14b pointers 17b, which refers to reading 19b,
During 3H/4, the sum of reading 19a, 19b D+5H/4 are boring aperture.
Above-described embodiment, the purpose of this utility model, technical solution and beneficial effect have been carried out into
One step describes in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
The utility model processed, where within the spirit and principles of the present invention, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of telescopic coal body aperture measurement device of mining gauge head, it is characterised in that including cylinder (7), one end of cylinder (7)
Equipped with cylinder front apron (13), which probes into drilling, and the other end is radially equipped with the first dial plate (14a)；The barrel of cylinder (7) is opened
There is the first cylinder gauge head hole (8a), the first gauge head (4a) passes through the first cylinder gauge head hole (8a), and one end is exposed to cylinder (7), separately
One end is connected in cylinder (7) and first cross bar (9a) parallel with cylinder (7) inner wall, one end of the first cross bar (9a) refer to
To the first dial plate (14a)；Described device is radial symmetric structure, and being symmetrically arranged with the second cylinder in the opposite side of cylinder (7) surveys
Head bore (8b), the second gauge head (4b), the second cross bar (9b), the second dial plate (14b)；Justify in the first cylinder gauge head hole (8a) and second
Slide cartridge (10) is communicated between cylinder gauge head hole (8b), is equipped with baffle (12) in the middle part of slide cartridge (10), slide cartridge (10) Internal baffle (12) and
The first spring (11a) is equipped between first cross bar (9a), the first slide cartridge cross bar slideway is radially provided with the barrel of slide cartridge (10)
(16a), the first cross bar (9a) can be slided along the first slide cartridge cross bar slideway (16a), and the first gauge head (4a) can be slided in slide cartridge (10)
It is dynamic；During nature, the first cross bar (9a) is close to cylinder (7) inner wall under the action of the first spring (11a), its one end alignment the
D/2+H scales on one dial plate (14a), the first gauge head (4a) is in maximum exposed state at this time；D represents the outside diameter of cylinder (7),
H represents range of the first gauge head (4a) in slide cartridge (10)；When the first gauge head (4a) is pressed to movement in cylinder (7),
First gauge head (4a) drives the first cross bar (9a) to be moved to cylinder (7) axis direction, and the first cross bar (9a) refers to during the motion
Different scales on the first dial plate (14a), when the first gauge head (4a) is fully retracted cylinder (7), the first cross bar (9a) is directed toward
The D/2 scales of first dial plate (14a)；Likewise, it is equipped with second spring (11b), the second slide cartridge cross bar slideway in device opposite side
(16b)。
A kind of 2. mining telescopic coal body aperture measurement device of gauge head according to claim 1, it is characterised in that the circle
The length of cylinder (7), the first cross bar (9a) and the second cross bar (9b) can be adjusted according to drillable length.
3. a kind of mining telescopic coal body aperture measurement device of gauge head according to claim 1, it is characterised in that described
One cylinder gauge head hole (8a), the second cylinder gauge head hole (8b) are respectively smaller than the first gauge head apart from cylinder front apron (13) length
The maximum protruded length h of (4a), the second gauge head (4b).
4. a kind of mining telescopic coal body aperture measurement device of gauge head according to claim 1, it is characterised in that described
One gauge head (4a), the maximum protruded length h of the second gauge head (4b) are equal to the first gauge head (4a), the second gauge head (4b) in slide cartridge (10)
Interior range H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721288315.6U CN207315365U (en) | 2017-09-30 | 2017-09-30 | A kind of telescopic coal body aperture measurement device of mining gauge head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721288315.6U CN207315365U (en) | 2017-09-30 | 2017-09-30 | A kind of telescopic coal body aperture measurement device of mining gauge head |
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| Publication Number | Publication Date |
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| CN207315365U true CN207315365U (en) | 2018-05-04 |
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ID=62429300
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721288315.6U Active CN207315365U (en) | 2017-09-30 | 2017-09-30 | A kind of telescopic coal body aperture measurement device of mining gauge head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461190A (en) * | 2017-09-30 | 2017-12-12 | 中国矿业大学 | A kind of telescopic coal body aperture measurement device of mining gauge head |
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2017
- 2017-09-30 CN CN201721288315.6U patent/CN207315365U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461190A (en) * | 2017-09-30 | 2017-12-12 | 中国矿业大学 | A kind of telescopic coal body aperture measurement device of mining gauge head |
| CN107461190B (en) * | 2017-09-30 | 2023-08-11 | 中国矿业大学 | Mining gauge head telescopic coal body aperture measuring device |
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