CN107255029B - Camera centering device of rotary expanding borehole peeping instrument and use method - Google Patents
Camera centering device of rotary expanding borehole peeping instrument and use method Download PDFInfo
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- CN107255029B CN107255029B CN201710678909.6A CN201710678909A CN107255029B CN 107255029 B CN107255029 B CN 107255029B CN 201710678909 A CN201710678909 A CN 201710678909A CN 107255029 B CN107255029 B CN 107255029B
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- 208000008918 voyeurism Diseases 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005553 drilling Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000011435 rock Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
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- 238000011156 evaluation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/002—Survey of boreholes or wells by visual inspection
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Abstract
The invention relates to a camera centering device of a rotary expanding borehole peeping instrument and a use method thereof, wherein the device comprises a camera, a push rod, an electric wire, a rotary sleeve, a large bearing, a small bearing, a support rod, a roller, a dial, a sawtooth ring and a rotary positioning assembly; the camera is connected with the rotary sleeve inside and outside through two large bearings, and the push rod and the electric wire are connected with the camera; the supporting rod is connected with the camera through a small bearing, and the other end of the supporting rod is provided with a roller which vertically rolls; the rotary positioning assembly is positioned at the bottom of the rotary sleeve and consists of a fixed sleeve, a spring, a clamping block and a shifting sheet, the fixed sleeve is arranged on the inner side of the bottom of the rotary sleeve, the spring is fixed in the fixed sleeve, the other end of the spring is connected with the clamping block, and the shifting sheet is fixed on the clamping block; the sawtooth ring is fixed at the bottom of the camera and is matched with the fixture block to realize rotation and fixation of the rotary sleeve. The invention provides the rotating expanding type camera centering device of the borehole peeping instrument, which is convenient to operate and low in cost, and the peeping effect of the borehole peeping instrument is effectively improved.
Description
The technical field is as follows:
the invention belongs to the technical field of underground engineering surrounding rock monitoring, and particularly relates to a camera centering device of a rotary expanding borehole peeping instrument and a using method of the camera centering device.
Background art:
the drilling peeping instrument can carry out all-round detection on fracture occurrence, fracture development condition, coal bed occurrence condition, karst cave, water-containing fracture zone, water outlet position and the like of underground engineering rock mass and coal mass by carrying out full-hole wall imaging, video recording and key position snapshot on a drilling hole, and provides basis for coal mine roof management, roadway support design and surrounding rock stability evaluation. At present, when a borehole is peeped in underground engineering, a stainless steel push rod is adopted to send a camera into a borehole, on one hand, when the camera moves in the borehole, due to the fact that a proper centering support mechanism is not arranged around, debris and underground water are adhered to the camera in the process of sliding along a borehole wall, imaging is fuzzy and not centered, and the detection effect is poor; on the other hand, when the operation condition is limited, the detection hole is usually drilled with different apertures, and cameras of different types need to be configured, so that the operation process is complicated, and the equipment cost is increased.
The invention content is as follows:
in order to solve the problems, the invention provides a rotating diameter-expanding camera centering device of a borehole peeping instrument and a use method thereof. The technical scheme adopted by the invention for solving the technical problems is as follows:
a camera centering device of a rotary expanding borehole peeping instrument comprises a camera, a push rod, an electric wire, a rotary sleeve, a large bearing, a small bearing, a support rod, a roller, a dial, a sawtooth ring and a rotary positioning assembly. The camera is connected with the rotating sleeve inside and outside through two large bearings, so that the rotating sleeve can rotate around the camera; the push rod and the electric wire are connected with the camera and are not contacted with the rotating sleeve; the supporting rod is connected with the camera through a small bearing to realize the forward and backward swinging of the supporting rod, and a roller which vertically rolls is arranged at one end of the supporting rod which is not connected with the camera; the dial is positioned on the outer side of the top of the camera, the fixed pointer is arranged at the top of the rotating sleeve, the rotating sleeve can be rotated according to specific angles, and finally the support range of the support rod is changed; the rotary positioning assembly is positioned at the bottom of the rotary sleeve and consists of a fixed sleeve, a spring, a clamping block and a shifting sheet, the fixed sleeve is arranged on the inner side of the bottom of the rotary sleeve, the spring is fixed in the fixed sleeve, the other end of the spring is connected with the clamping block, and the shifting sheet is fixed on the clamping block; the sawtooth ring is fixed at the bottom of the camera and is matched with the clamping block to realize rotation and fixation of the rotary sleeve.
Furthermore, the number of the support rods is three, and the three support rods respectively penetrate through first strip-shaped hollow holes in the side face of the top of the rotating sleeve; the poking pieces are two and respectively penetrate through the strip-shaped guide groove on one side of the fixed sleeve and the second strip-shaped hollow hole in the bottom of the rotary sleeve.
According to the technical scheme provided by the invention, the camera centering device of the rotary expanding borehole speculum and the use method thereof provided by the invention have the following advantages:
1. the use practicability is strong, the operation is convenient, and the cost is low.
2. Rotation type centering mechanism design benefit realizes the change of bracing piece support range through adjusting the relative camera turned angle of rotatory sleeve to can adapt to the drilling in multiple aperture.
3. The supporting range is stable, the clamping block is matched with the sawtooth ring, so that the rotating sleeve can only rotate anticlockwise but not rotate clockwise when the novel supporting rack is used, the supporting rod is ensured not to rotate when the novel supporting rack is used, and the rotating sleeve can be adjusted back to the initial position through the shifting piece after the novel supporting rack is used.
4. The peeping effect of the drilling peeping instrument is effectively increased.
Drawings
Fig. 1 is a schematic view of the general structure of the present invention.
Fig. 2 is a top view of the initial position of the present invention.
Fig. 3 is a cross-sectional view a-a of the present invention at a rotation angle of 0 °.
Fig. 4 is a cross-sectional view a-a of the present invention at a rotation angle of 54 °.
Fig. 5 is a cross-sectional view a-a at a rotation angle of 64 ° according to the present invention.
FIG. 6 is a cross-sectional view taken along line B-B of the present invention.
FIG. 7 is a cross-sectional view taken along line C-C of the present invention.
FIG. 8 is a front view of the rotational positioning assembly of the present invention.
FIG. 9 is a top view of the rotational positioning assembly of the present invention.
FIG. 10 is a cross-sectional view taken along line D-D of the present invention.
Fig. 11 is a simplified diagram of the calculation of the support radius and the rotation angle according to the present invention.
In the figure, 1 — camera; 2, a push rod; 3-an electric wire; 4-a rotating sleeve, 4-1-a pointer, 4-2-a first strip-shaped hollow hole, 4-3-a second strip-shaped hollow hole; 5, a large bearing; 6-small bearing; 7, supporting rods; 8, rolling wheels; 9-a dial; 10-a sawtooth ring; 11-a rotary positioning component, 11-1-a fixed sleeve, 11-2-a spring, 11-3-a clamping block, 11-4-a shifting piece and 11-5-a strip-shaped guide groove; 12-pore walls.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 11, a camera centering device of a rotary expanding borehole speculum comprises a camera 1, a push rod 2, an electric wire 3, a rotary sleeve 4, a large bearing 5, a small bearing 6, a support rod 7, a roller 8, a dial 9, a sawtooth ring 10 and a rotary positioning assembly 11.
The camera 1 is sleeved in the rotating sleeve 4 and connected through two large bearings 5, so that the rotating sleeve 4 can rotate around the camera 1; the push rod 2 and the electric wire 3 are connected with the camera 1 and are not in contact with the rotating sleeve 4; the supporting rod 7 is fixed on the outer side of the camera 1 through the small bearing 6, the supporting rod 7 can swing back and forth around the small bearing 6, one end, which is not connected with the camera 1, of the supporting rod 7 is provided with a roller 8 which rolls vertically, and when the camera 1 moves, the roller 8 is in rolling contact with the hole wall 12, so that the moving resistance is reduced; the dial 9 is positioned on the outer side of the top of the camera 1, a pointer 4-1 pointing to the dial 9 is fixed at the top of the rotary sleeve 4, three first strip-shaped holes 4-2 are formed in the side face of the top, and two second strip-shaped holes 4-3 are formed in the bottom; the sawtooth ring 10 is fixed at the bottom of the camera 1; the rotary positioning assembly 11 is positioned at the bottom of the rotary sleeve and comprises a fixed sleeve 11-1, a spring 11-2, a clamping block 11-3 and a shifting piece 11-4, the fixed sleeve 11-1 is fixed at the inner side of the rotary sleeve 4, the spring 11-2 is installed in the fixed sleeve 11-1, the other end of the spring 11-2 is connected with the clamping block 11-3, the clamping block 11-3 is connected with the shifting piece 11-4, and one side of the fixed sleeve 11-1 is also provided with a strip-shaped guide groove 11-5 for the shifting piece 11-4 to slide; according to the actual drilling size requirement, a specific rotating angle is determined, when the rotating sleeve 4 is rotated, the pointer 4-1 and the rotating positioning component 11 also rotate along with the rotating sleeve, the rotating angle of the rotating sleeve 4 is controlled by matching the dial 9, the clamping block 11-3 in the rotating positioning component 11 is clamped between two teeth of the sawtooth ring 10, the rotating sleeve 4 is rotated and fixed relative to the camera 1 through the tooth connection, the support rod 7 is stretched and fixed, and a support range suitable for the actual drilling size is provided finally.
As shown in figures 7-9, when the camera is used, the camera 1 is fixed, when the rotating sleeve 4 rotates anticlockwise, the rotating positioning assembly 11 is driven to rotate, the fixture block 11-3 compresses the spring 11-2 to enable the spring 11-2 to generate elastic compression deformation under the influence of the tooth form of the sawtooth ring 10, the fixture block 11-2 can reversely cross each sawtooth on the outer side of the sawtooth ring 10 until a specified rotation angle is reached, at the moment, when the rotating sleeve 4 rotates clockwise, the fixture block 11-3 cannot compress the spring 11-2, namely, the spring rotates clockwise ineffectively, if the rotating sleeve 4 needs to rotate clockwise after being used, the dial piece 11-4 needs to be pulled to enable the fixture block 11-3 to move, the spring 11-2 is stressed and compressed, the sawtooth of the sawtooth ring 10 does not limit the fixture block 11-3 any more, and at the moment, the rotating, the pointer 4-1 returns to zero, and the rotating positioning component 11 is matched with the sawtooth ring 10 to realize the rotation and fixation of the rotating sleeve 4 relative to the camera 1.
As shown in fig. 3-5, when the invention is used, the support rod 7 passes through the first strip-shaped hollow hole 4-2 on the side surface of the top of the rotary sleeve 4, and when the camera 1 and the rotary sleeve 4 rotate relatively, the support rod 7 extends outwards along the rotary sleeve 4 at the same time, so that the support range is expanded, the support device is suitable for drilling holes with different diameters, the accurate centering of the camera 1 is ensured, the pollution of underground water and rock debris to the camera is avoided, and the peeping effect is effectively improved.
As shown in fig. 10, the pulling piece 11-4 pulls a second strip-shaped hollow hole 4-3 which needs to pass through the bottom of the rotating sleeve 4, and the second strip-shaped hollow hole 4-3 completely corresponds to the strip-shaped guide groove 11-5.
When the peeping operation is carried out in the drilling hole, the camera 1 and the rotary sleeve 4 do not rotate relatively, so that the stability of the peeping device in the actual peeping operation process is ensured.
The use method of the camera centering device of the rotary expanding borehole peeping instrument comprises the following steps:
in the rectangular coordinate system of fig. 11, the equation of the circle O' is:
point B' (x)B′，yB′) On the circle O' and to the centre O (x) of the camera 1O，yO) The distance of (a) is the required support radius OB',
therefore, the method comprises the following steps:
then the angle BO 'B' can be calculated, namely the rotation angle of the support rod 7 is known;
in Δ OO 'a' and Δ OAB, respectively, using the sine theorem one can obtain:
then the angle O 'A' O and angle OBA can be obtained, namely:
∠O′OA′＝180°-∠O′A′O-(∠OO′B+∠BO′B′) (8)
∠AOB＝180°-∠OAB-∠OBO′ (9)
the rotation angle of the rotatable sleeve 4 thus obtained is:
∠A′OA＝∠O′OB-∠O′OA′-∠AOB (10)
And step 4, resetting and next peeping operation: and after the observation is finished, taking out the camera centering device of the rotary expanding borehole peeping instrument, fixing the camera 1, shifting the shifting piece 11-4 outwards to enable the clamping block 11-3 to move, enabling the clamping block 11-3 to be separated from the limit of the sawtooth ring 10, rotating the rotary sleeve 4 anticlockwise, releasing the shifting piece 11-4 after the pointer 4-1 points to the initial angle, namely completing the resetting of one borehole peeping operation, and repeating the step 2 if the borehole peeping operation is continued, so that the next borehole peeping operation can be carried out.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a rotatory hole enlargement drilling is peeld appearance camera centering device, contains camera (1), push rod (2), electric wire (3), rotating sleeve (4), big bearing (5), little bearing (6), bracing piece (7), gyro wheel (8), calibrated scale (9), sawtooth ring (10) and rotational positioning subassembly (11), its characterized in that: the camera (1) is sleeved in the rotating sleeve (4) and connected through two large bearings (5); the push rod (2) and the electric wire (3) are connected with the camera (1) and are not in contact with the rotating sleeve (4); the supporting rod (7) is fixed on the outer side of the camera (1) through a small bearing (6), and a roller (8) which rolls vertically is arranged at one end, which is not connected with the camera (1), of the supporting rod (7); the dial (9) is positioned at the top of the camera (1) and is fixed on the outer ring of the camera (1); a pointer (4-1) pointing to the dial (9) is fixed at the top of the rotary sleeve (4), three first strip-shaped holes (4-2) are formed in the side face of the top, and two second strip-shaped holes (4-3) are formed in the bottom; the sawtooth ring (10) is fixed on the outer side of the bottom of the camera (1); the rotary positioning assembly (11) is fixed on the inner side of the bottom of the rotary sleeve (4) and comprises a fixed sleeve (11-1), a spring (11-2), a clamping block (11-3) and a shifting piece (11-4), the fixed sleeve (11-1) is fixed on the inner side of the rotary sleeve (4), the spring (11-2) is installed in the fixed sleeve (11-1), the other end of the spring (11-2) is connected with the clamping block (11-3), the clamping block (11-3) is connected with the shifting piece (11-4), and a strip-shaped guide groove (11-5) is formed in one side of the fixed sleeve (11-1); when the rotary sleeve (4) rotates, the pointer (4-1) and the rotary positioning component (11) rotate along with the rotary sleeve, the rotary dial (9) is matched to control the rotation angle of the rotary sleeve (4), the clamping block (11-3) in the rotary positioning component (11) is clamped between two teeth of the sawtooth ring (10), and the rotary sleeve (4) rotates and is fixed relative to the camera (1) through the tooth connection, so that the support rod (7) is stretched and fixed.
2. The camera centering device of the rotary expanding borehole speculum according to claim 1, wherein the working principle of rotation and fixation of the rotating sleeve (4) relative to the camera (1) is as follows: when the rotary sleeve (4) rotates anticlockwise around the camera (1), the rotary positioning assembly (11) is driven to rotate and is influenced by the tooth form of the sawtooth ring (10), the spring (11-2) is compressed by the fixture block (11-3) to enable the spring (11-2) to generate elastic compression deformation, the fixture block (11-2) can pass through each sawtooth on the outer side of the sawtooth ring (10) anticlockwise until a specified rotation angle is reached, the rotary sleeve (4) is rotated clockwise at the moment, the fixture block (11-3) cannot compress the spring (11-2), namely clockwise rotation is invalid, if the rotary sleeve (4) must rotate clockwise, the poking piece (11-4) needs to be poked outwards to enable the fixture block (11-3) to move, the spring (11-2) is stressed and compressed, the sawtooth of the sawtooth ring (10) does not limit the fixture block (11-3), at the moment, the rotating sleeve (4) can rotate clockwise; the large bearing (5) and the rotary positioning assembly (11) are matched with the sawtooth ring (10) to realize rotation and fixation of the rotary sleeve (4) relative to the camera (1).
3. The centering device of a camera of a rotary expanding borehole speculum according to claim 1, wherein the support rod (7) passes through a first strip-shaped hollow hole (4-2) in the top side of the rotary sleeve (4); the shifting piece (11-4) penetrates through the strip-shaped guide groove (11-5) and the second strip-shaped hollow hole (4-3) respectively, and the second strip-shaped hollow hole (4-3) completely corresponds to the strip-shaped guide groove (11-5).
4. An operating method for performing peeking operation on a centering device by using the camera of the rotary diameter-expanding borehole peeking instrument according to claim 1, characterized by comprising the following steps:
step 1, determining a rotation angle of a rotating sleeve: determining the required support radius according to the actual drilling size, and determining the rotation angle of the rotating sleeve (4) by determining the known quantity and pushing out a calculation relation between the support radius and the rotation angle of the rotating sleeve (4) by using a simple geometric relation;
step 2, rotating the rotating sleeve: fixing the camera (1), rotating the rotating sleeve (4) anticlockwise until the rotating angle determined in the step (1), if the rotating angle of the rotating sleeve (4) exceeds a target angle and needs to rotate, namely rotating clockwise in the rotating process, shifting the shifting sheet (11-4) outwards to enable the clamping block (11-3) to move, separating the clamping block (11-3) from the limit of the sawtooth ring (10), namely rotating the rotating sleeve (4) clockwise, releasing the shifting sheet (11-4) after the pointer (4-1) points to the target angle, and immediately fixing the relative position of the rotating sleeve (4) and the camera (1);
step 3, drilling and peeping: the rotary expanding borehole peeping instrument camera is pushed into the borehole for detection through the push rod (2), and relevant data are recorded; when the peeping operation is carried out in the drill hole, the camera (1) and the rotary sleeve (4) do not rotate relatively, so that the stability of the camera centering device of the rotary expanding drill hole peeping instrument in the actual peeping operation process is ensured;
and step 4, resetting and next peeping operation: and after observation is finished, taking out the camera centering device of the rotary expanding borehole peeping instrument, fixing the camera (1), shifting the shifting piece (11-4) outwards to enable the clamping block (11-3) to move, enabling the clamping block (11-3) to be separated from the limit of the sawtooth ring (10), rotating the rotary sleeve (4) clockwise, releasing the shifting piece (11-4) after the pointer (4-1) points to the initial angle, namely completing the resetting of one-time borehole peeping operation, and repeating the step 2 if the borehole peeping operation is continued, so that the next borehole peeping operation can be carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710678909.6A CN107255029B (en) | 2017-08-10 | 2017-08-10 | Camera centering device of rotary expanding borehole peeping instrument and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710678909.6A CN107255029B (en) | 2017-08-10 | 2017-08-10 | Camera centering device of rotary expanding borehole peeping instrument and use method |
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| Publication Number | Publication Date |
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| CN107255029A CN107255029A (en) | 2017-10-17 |
| CN107255029B true CN107255029B (en) | 2020-11-27 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441762A (en) * | 2020-04-03 | 2020-07-24 | 河北永达化工有限公司 | Underground photographing detector |
| CN114310369B (en) * | 2020-09-29 | 2023-09-29 | 宝武装备智能科技有限公司 | Pin hole single-matching processing method using tooth sleeve alignment positioning device |
| CN113958307B (en) * | 2021-10-12 | 2023-12-01 | 中国矿业大学 | Intelligent telescopic drilling peeping pushing device and application method thereof |
| CN114075968B (en) * | 2021-11-16 | 2024-05-14 | 泰安泰烁岩层控制科技有限公司 | Drilling peeping instrument |
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|---|---|---|---|---|
| CN104314555A (en) * | 2014-10-16 | 2015-01-28 | 河南理工大学 | Probing method of coal mine drilling probing instrument |
| WO2015122916A1 (en) * | 2014-02-14 | 2015-08-20 | Halliburton Energy Services Inc. | Uniformly variably configurable drag members in an anti-rotation device |
| CN205135603U (en) * | 2015-10-30 | 2016-04-06 | 西安科技大学 | Camera positioner of appearance is spied on in mining drilling |
| CN205778813U (en) * | 2016-05-18 | 2016-12-07 | 北京富地勘察测绘有限公司 | A kind of down-hole automatic centering detection device |
| CN206174949U (en) * | 2016-11-23 | 2017-05-17 | 中国石油大学(华东) | Appearance washing, defogging device are peeied at in drilling |
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2017
- 2017-08-10 CN CN201710678909.6A patent/CN107255029B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015122916A1 (en) * | 2014-02-14 | 2015-08-20 | Halliburton Energy Services Inc. | Uniformly variably configurable drag members in an anti-rotation device |
| CN104314555A (en) * | 2014-10-16 | 2015-01-28 | 河南理工大学 | Probing method of coal mine drilling probing instrument |
| CN205135603U (en) * | 2015-10-30 | 2016-04-06 | 西安科技大学 | Camera positioner of appearance is spied on in mining drilling |
| CN205778813U (en) * | 2016-05-18 | 2016-12-07 | 北京富地勘察测绘有限公司 | A kind of down-hole automatic centering detection device |
| CN206174949U (en) * | 2016-11-23 | 2017-05-17 | 中国石油大学(华东) | Appearance washing, defogging device are peeied at in drilling |
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