CN209908492U - Measuring device for punched coal seam shape - Google Patents
Measuring device for punched coal seam shape Download PDFInfo
- Publication number
- CN209908492U CN209908492U CN201920533646.4U CN201920533646U CN209908492U CN 209908492 U CN209908492 U CN 209908492U CN 201920533646 U CN201920533646 U CN 201920533646U CN 209908492 U CN209908492 U CN 209908492U
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- gear
- rod
- track rod
- distance measuring
- micro motor
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a coal seam punching hole shape measuring device, which comprises a telescopic rod, a hollow track rod is connected on the telescopic rod, a distance measuring box is nested on the track rod, a first gear which is connected with the track rod in a sliding way is arranged in the distance measuring box, a fixed rod is arranged on the first gear, one end of the fixed rod penetrates into the track rod and is fixed with a first micro motor, an output shaft of the first micro motor is provided with a second gear, a bar-shaped toothed plate which is meshed with the second gear is arranged in the track rod, a second micro motor is fixed in the distance measuring box, an output shaft of the second micro motor is provided with a third gear which is meshed with the first gear, a limiting rod is fixed on the first gear, two ends of the limiting rod respectively support against the inner walls at two sides of the distance measuring box, a laser distance measuring instrument is arranged in the distance measuring box, the device can realize hole making hole diameter and hole depth measurement with high efficiency and, meanwhile, the method is simple to operate, accurate, reliable and high in adaptability.
Description
Technical Field
The utility model relates to a coal seam shape survey field that punches a hole, concretely relates to survey device of coal seam shape that punches a hole.
Background
Coal resources are used as main energy sources in China, and the consumption accounts for more than 60%. And coal safety mining is restricted by frequent coal accidents caused by gas. The gas extraction is a necessary way for coal mine safety mining, and most coal seams in China have complicated geological conditions and poor coal seam air permeability, so that the gas extraction efficiency is severely restricted. The efficiency must be improved by strengthening measures such as hydraulic punching, hydraulic slotting and the like, and the hydraulic punching is widely applied to mines with difficult gas extraction in China due to simple operation and strong adaptability.
The hydraulic punching is to generate holes in coal seam cave-making by high-pressure water jet, so as to achieve the purpose of pressure relief and permeability increase. The size and shape of the hole directly affect the pressure relief range and effect, so that quantitative examination of the shape of the punched hole is particularly important.
The prior art can not accurately and quantitatively determine the shape of the hydraulic punching hole-making hole-forming of the reducing coal seam, and the common methods comprise observation by a drilling peeping instrument and calculation reverse thrust of the coal output of drilling. The hole drilling coal yield calculation reverse extrapolation method assumes that the hole is cylindrical and does not meet the actual situation. Both methods cannot accurately determine the shape and boundary of the hole by experience alone. The Chinese utility model patent application with publication number CN109083637A discloses a device and a method for measuring the hole diameter of a hydraulic punching cave of an underground coal seam, which measure the hole range through a mechanical measuring rod. The measuring mode of opening the measuring rod has defects, and when the hole is irregular in shape, the hole diameter cannot be accurately measured. Meanwhile, the calculation is complicated, the effect is not ideal, and a large amount of manual operation is needed.
SUMMERY OF THE UTILITY MODEL
The technique that exists is not enough to the aforesaid, the utility model aims at providing a survey device of coal seam shape of punching a hole, its distance to pore wall around through rotatory laser range finder measures, can measure anomalous hole shape, and is simple to use and comparatively accurate.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a coal seam punching shape measuring device, which comprises a telescopic rod, wherein the extending end of the telescopic rod is connected with a hollow track rod, a distance measuring box is nested on the track rod, a first gear which is connected with the track rod in a sliding way is arranged in the distance measuring box, the first gear, the distance measuring box and the track rod are coaxially arranged, a fixed rod is fixed on the first gear, one end of the fixed rod, which is far away from the first gear, penetrates into the track rod and is fixed with a first micro motor, the output shaft of the first micro motor is provided with a second gear, a strip-shaped toothed plate which is meshed with the second gear is also arranged in the track rod, a second micro motor is also fixed on the inner wall of the distance measuring box, the output shaft of the second micro motor is connected with a third gear which is meshed with the first gear, a plurality of limiting rods which penetrate through the first gear are fixedly arranged on the first gear, the two ends of the limiting rod are respectively abutted to the inner walls of the two sides of the ranging box, a laser range finder is further arranged in the ranging box, and the ranging end of the laser range finder extends out of the ranging box.
Preferably, the track rod is provided with a strip-shaped groove for the fixed rod to slide.
Preferably, the extension end of the telescopic rod is connected with the track rod in a threaded manner.
Preferably, the distance measuring box is provided with a through hole for the track rod to pass through, and the diameter of the through hole is matched with the outer diameter of the track rod.
Preferably, the strip-shaped toothed plate and the track rod are horizontally co-directional and have the same length.
The beneficial effects of the utility model reside in that: the laser range finder used by the utility model has extremely high measurement precision; the measurement operation is remotely controlled, so that manual operation is reduced, and the measurement error is effectively reduced; the utility model discloses can be high-efficient, accurately realize making cave hole aperture, bore depth and measure, restore the hole form, easy operation simultaneously, it is accurate reliable, strong adaptability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an installation schematic view of a device for determining a coal seam punching hole shape according to an embodiment of the present invention;
fig. 2 is a schematic connection diagram of a first gear, a first micro motor and a bar-shaped toothed plate according to an embodiment of the present invention;
fig. 3 is a connection schematic diagram of distance measuring box, second micro motor, second gear, first gear and track rod that the embodiment of the utility model provides.
Description of reference numerals:
1. the telescopic link, 2, track pole, 3, range finding box, 4, first gear, 5, bar pinion rack, 6, first micro motor, 7, second gear, 8, second micro motor, 9, third gear, 10, dead lever, 11, gag lever post, 12, laser range finder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 3, a device for measuring a coal seam punching shape includes a telescopic rod 1, an extending end of the telescopic rod 1 is connected with a hollow track rod 2, a distance measuring box 3 is nested on the track rod 2, a first gear 4 slidably connected with the track rod 2 is arranged in the distance measuring box 3, the first gear 4, the distance measuring box 3 and the track rod 2 are coaxially arranged, a fixing rod 10 is fixed on the first gear 4, one end of the fixing rod 10 far away from the first gear 4 penetrates into the track rod 2 and is fixed with a first micro motor 6, an output shaft of the first micro motor 6 is provided with a second gear 7, a bar-shaped toothed plate 5 meshed with the second gear 7 is further arranged in the track rod 2, a second micro motor 8 is further fixed on an inner wall of the distance measuring box 3, an output shaft of the second micro motor 8 is connected with a third gear 9 meshed with the first gear 4, fixed gag lever post 11 that is provided with a plurality of and runs through it on the first gear 4, the both ends of gag lever post 11 just contact respectively the both sides inner wall of range finding box 3 can, still be provided with laser range finder 12 in the range finding box 3, the range finding end of laser range finder 12 stretches out outside range finding box 3.
The track rod 2 is provided with a strip-shaped groove for the fixed rod 10 to slide.
The extension end of the telescopic rod 1 is in threaded connection with the track rod 2.
The distance measuring box 3 is provided with a through hole for the track rod 2 to pass through, and the diameter of the through hole is matched with the outer diameter of the track rod 2.
The strip-shaped toothed plate 5 and the track rod 2 are in the same horizontal direction and have the same length.
The use method of the coal seam punching shape measuring device comprises the following steps:
1) drilling the coal seam by using a tool until the drilled hole is communicated with the hole of the hydraulic punching hole;
2) the first micro motor, the second micro motor and the laser range finder are respectively electrically connected with an external controller, the laser range finder is electrically connected with an external display, and the display is used for external personnel to read the range-finding numerical value;
3) pushing the track rod from the drill hole into the hole by using the telescopic rod until the top end of the track rod exceeds the depth of the hole;
4) controlling a distance measuring box to reach the deepest part of the hole, starting a laser distance measuring instrument to measure the shape of the hole, rotating for 18 degrees in the clockwise direction for one-time distance measurement, repeating the steps until the laser distance measuring instrument rotates for 360 degrees and then resets, rotating for 18 degrees in the anticlockwise direction for one-time distance measurement, repeating the steps until the laser distance measuring instrument rotates for 360 degrees and resets, and ensuring that wires used in the device cannot be wound and damaged;
5) controlling the distance measuring box to move 0.25m towards the direction close to the telescopic rod, starting the laser distance measuring instrument to measure the shape of the hole, rotating for 18 degrees clockwise to measure distance for one time, repeating until the laser distance measuring instrument rotates for 360 degrees, resetting the laser distance measuring instrument, rotating for 18 degrees anticlockwise to measure distance for one time, repeating until the laser distance measuring instrument rotates for 360 degrees, resetting the laser distance measuring instrument, and ensuring that the electric wire used in the device cannot be wound and damaged;
6) the step 5) is circulated until the movement distance of the ranging box exceeds the hole depth of the hole;
7) summarizing the data collected in the steps 4) to 6) and drawing a structure diagram of the shape of the hole.
In the step 4), the controller is used for controlling the first micro motor 6 to rotate, the first micro motor 6 drives the first micro motor to slide and displace with the first gear 4 through the meshing of the second gear 7 and the strip-shaped toothed plate 5, and the limiting rod 11 is used for driving the distance measuring box to move together.
In the step 4), the controller is used for controlling the second micro motor 8 to rotate, and the rotary displacement of the distance measuring box 3 is controlled through the meshing of the third gear 9 and the first gear 4.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. A survey device of coal seam punching hole shape which characterized in that: the track rod comprises a telescopic rod (1), the extending end of the telescopic rod (1) is connected with a hollow track rod (2), a distance measuring box (3) is nested on the track rod (2), a first gear (4) which is in sliding connection with the track rod (2) is arranged in the distance measuring box (3), the first gear (4), the distance measuring box (3) and the track rod (2) are coaxially arranged, a fixing rod (10) is fixed on the first gear (4), one end, far away from the first gear (4), of the fixing rod (10) penetrates into the track rod (2) and is fixed with a first micro motor (6), a second gear (7) is arranged on an output shaft of the first micro motor (6), a strip-shaped toothed plate (5) which is meshed with the second gear (7) is further arranged in the track rod (2), and a second micro motor (8) is further fixed on the inner wall of the distance measuring box (3), the output shaft of second micro motor (8) have with third gear (9) of first gear (4) meshing, fixed gag lever post (11) that are provided with a plurality of on first gear (4) and run through it, the both ends of gag lever post (11) are supported respectively on the both sides inner wall of range finding box (3), still be provided with laser range finder (12) in range finding box (3), the range finding end of laser range finder (12) stretches out outside range finding box (3).
2. A coal seam hole punching shape measuring apparatus as defined in claim 1, wherein: the track rod (2) is provided with a strip-shaped groove for the fixed rod (10) to slide.
3. A coal seam hole punching shape measuring apparatus as defined in claim 1, wherein: the extension end of the telescopic rod (1) is in threaded connection with the track rod (2).
4. A coal seam hole punching shape measuring apparatus as defined in claim 1, wherein: the distance measuring box (3) is provided with a through hole for the track rod (2) to pass through, and the diameter of the through hole is matched with the outer diameter of the track rod (2).
5. A coal seam hole punching shape measuring apparatus as defined in claim 1, wherein: the strip-shaped toothed plate (5) and the track rod (2) are in the same horizontal direction and have the same length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920533646.4U CN209908492U (en) | 2019-04-18 | 2019-04-18 | Measuring device for punched coal seam shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920533646.4U CN209908492U (en) | 2019-04-18 | 2019-04-18 | Measuring device for punched coal seam shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209908492U true CN209908492U (en) | 2020-01-07 |
Family
ID=69044461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920533646.4U Expired - Fee Related CN209908492U (en) | 2019-04-18 | 2019-04-18 | Measuring device for punched coal seam shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209908492U (en) |
-
2019
- 2019-04-18 CN CN201920533646.4U patent/CN209908492U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200107 Termination date: 20210418 |