CN210513090U - Blast hole depth measuring device - Google Patents
Blast hole depth measuring device Download PDFInfo
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- CN210513090U CN210513090U CN201921598445.9U CN201921598445U CN210513090U CN 210513090 U CN210513090 U CN 210513090U CN 201921598445 U CN201921598445 U CN 201921598445U CN 210513090 U CN210513090 U CN 210513090U
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Abstract
The utility model relates to the field of blasting measurement, in particular to a blast hole depth measuring device; the method comprises the following steps: the device comprises a first hemisphere, a second hemisphere, a measuring rope, a heavy hammer, a controller, a gravity sensor and a meter; the first hemisphere and the second hemisphere are connected with the rotating shaft through a spring; one end of the measuring rope penetrates through the spring and then is connected with the heavy hammer, and the other end of the measuring rope is connected with the controller; the spring fixes the measuring rope; the first hemisphere and the second hemisphere are both provided with openings; the first hemisphere and the second hemisphere are both hollow floating balls; the gravity sensor and the meter are both connected with the measuring rope. If water exists in the blast hole, the water flows into the first hemisphere and the second hemisphere through the opening hole, so that the first hemisphere and the second hemisphere rotate around the rotating shaft, the spring is lengthened, and the heavy hammer drives the measuring rope to continuously fall to the bottom of the blast hole. The device can conveniently, quickly and accurately measure the depth of the blast hole and the depth of water in the blast hole, and has high accuracy.
Description
Technical Field
The utility model relates to a blasting measurement field, concretely relates to big gun hole depth measuring device.
Background
With the standard of blasting technology and the consideration of economic benefit, the depth of a shot hole and the depth of water in the shot hole are measured before blasting, so that explosives with different components are selected for blasting.
In the current blasting operation, the main method for testing the water depth and the hole depth of a blast hole is as follows: and placing the measuring rope into the borehole, recording a first scale of the measuring rope when the bottom of the measuring rope is in contact with water according to experience, and then recording a second scale of the measuring rope when the measuring rope reaches the bottom of the borehole, so that a reading of the second scale of the borehole depth can be obtained, and the reading of the first scale subtracted from the reading of the second scale of the water depth. Because whether the measuring rope contacts with water is judged according to experience, great human errors exist, measured data are possibly inaccurate, and meanwhile, the measuring rope is used for a long time in a construction site. And the measuring rope scale is easy to fall off, most workers determine the measuring rope length by experience rather than according to actual scale, and further cause errors, so that great errors exist in the measured blast hole water depth and the measured hole depth.
Disclosure of Invention
The utility model discloses to judging the degree of depth whether have water and big gun hole in the hole through the experience at present, lead to the problem that the measuring result degree of accuracy is low, the error is big, work efficiency is low, provide a big gun hole depth measuring device.
In order to achieve the above purpose, the invention provides the following technical scheme:
a blast hole depth measuring apparatus comprising: the device comprises a first hemisphere, a second hemisphere, a measuring rope, a heavy hammer, a controller and a gravity sensor;
the side surface of the upper part of the first hemisphere is fixedly connected with the side surface of the upper part of the second hemisphere through a spring, and the side surface of the lower part of the first hemisphere is hinged with the rotating shaft; the side surface of the lower part of the second hemisphere is hinged through the rotating shaft;
one end of the measuring rope is connected with the heavy hammer, and the other end of the measuring rope is connected with the controller; the spring is a spiral spring; the measuring rope is clamped and fixed by the adjacent spiral coils of the spring in a natural state;
the first hemisphere and the second hemisphere are both provided with openings;
the first hemisphere and the second hemisphere are both hollow;
the gravity sensor is arranged on the heavy hammer;
the gravity sensor is electrically connected with the controller.
Preferably, a meter is arranged in the controller, and the meter is electrically connected with the controller. The length that the measuring rope descends can be calculated through the counter, can directly reach the distance and need not the staff and observe, also avoids long-time use to lead to the measure on the measuring rope to disappear and makes the reading inaccurate.
Preferably, the blast hole depth measuring device further comprises a display, and the display is connected with the controller. The distance of the descending of the measuring rope and the depth of the water can be visually seen through the display.
Preferably, the blast hole depth measuring device comprises two spring connections and two rotating shafts. The first hemisphere and the second hemisphere are hinged through the two rotating shafts, so that the first hemisphere and the second hemisphere are connected more firmly. The distance between the two rotating shafts can be set to be smaller than the diameter of the conical weight, so that the first hemisphere and the second hemisphere can be retracted together when the floating ball is retracted.
Preferably, the two springs are symmetrically arranged along the horizontal central axis of the first hemisphere and the horizontal central axis of the second hemisphere, and the two rotating shafts are symmetrically arranged along the horizontal central axis of the first hemisphere and the horizontal central axis of the second hemisphere. The symmetrical arrangement makes the force applied to the first hemisphere and the second hemisphere uniform.
Preferably, a first lug extends outwards from the outer surface of the lower part of the first hemisphere; the first support lug is hollow and is communicated with the first hemisphere; and a second lug extends outwards from the outer surface of the lower part of the second hemisphere, the second lug is hollow, and the second lug is communicated with the second hemisphere. The first two and the second support lug are arranged obliquely upwards; through increasing first journal stirrup and second journal stirrup, can increase the weight in the floating ball after water gets into first hemisphere and second hemisphere for the resultant force that acts on first hemisphere and second hemisphere increases, and the upper half portion that can be more quick messenger first hemisphere and second hemisphere opens around the pivot.
The measuring rope is clamped tightly through the helicoids between the adjacent springs, so that the first hemisphere, the second hemisphere and the heavy hammer are integrated to fall into the blast hole, and the length of the measuring rope is measured by the meter when the measuring rope falls into the blast hole. If there is water in the big gun hole, then the weight of first hemisphere and second hemisphere must be guaranteed when falling into the aquatic, trompil and the horizontal plane on first hemisphere and the second hemisphere are unanimous, thereby water slowly permeates in first hemisphere and the second hemisphere through the trompil, at the gravity of first hemisphere and second hemisphere self, the gravity of floater water-logging, buoyancy, measure under the effect of the pulling force of rope and the pulling force of spring, first hemisphere and second hemisphere rotate around the pivot, thereby lengthen the spring, the gap grow of spring will be measured the rope and loosen, measure the rope and continue to drop down until the bottom of arriving the big gun hole under the effect of weight. When the first hemisphere and the second hemisphere reach the water surface, the gravity sensor senses the change due to the effect of buoyancy, the controller records data L1 of the counter at the moment, when the heavy hammer continuously falls to the bottom of the blast hole, the gravity sensor senses the change again, and the controller records data L2 of the counter at the moment. Therefore, L2 is the depth of the blast hole, and L2-L1 is the depth of water in the blast hole. If the gravity sensor only detects one-time change, the fact that no water exists in the blast hole is indicated, and the measured depth is the depth of the blast hole.
Compared with the prior art, the invention has the beneficial effects that: the application provides a big gun hole degree of depth measuring device, the degree of depth and the degree of depth of the interior water of big gun hole that can convenient, swift and accurate measurement big gun hole, the degree of accuracy is high.
Description of the drawings:
fig. 1 is a schematic structural diagram of a blast hole depth measuring device provided in the present application;
FIG. 2 is a schematic structural diagram according to a first embodiment;
FIG. 3 is a schematic structural diagram according to a second embodiment;
FIG. 4 is a schematic view of a bobbin;
FIG. 5 is a force analysis diagram of a first hemisphere;
FIG. 6 is a force analysis diagram for a second hemisphere;
fig. 7 is a state diagram of fig. 2.
The labels in the figure are: 1-first hemisphere, 11-first lug, 2-second hemisphere, 21-second lug, 3-measuring rope, 4-weight, 5-controller, 6-spring, 7-rotating shaft, 8-opening hole, 9-bobbin, 10-wire coil, 11-coding hole and 12-display.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
Example one
As shown in fig. 1 and 2, the present application provides a blast hole depth measuring device, which includes a first hemisphere 1 and a second hemisphere 2, wherein the first hemisphere 1 and the second hemisphere 2 are both hollow floating balls. The upper parts of the first hemisphere 1 and the second hemisphere 2 are connected through two springs 6, and the springs 6 can be selected from coil springs. The lower part is hinged through two rotating shafts 7. The two springs 6 are symmetrically arranged along the horizontal central axes of the first hemisphere 1 and the second hemisphere 2, and the two rotating shafts 7 are symmetrically arranged along the horizontal central axes of the first hemisphere 1 and the second hemisphere 2, so that the first hemisphere 1 and the second hemisphere 2 are stressed uniformly. The measuring rope 3 penetrates through the spring 6 and the rotating shaft 7 and then is connected with the heavy hammer 4, the measuring rope 3 is clamped between the adjacent spiral coils of the spring 6 through a gap between the adjacent spiral coils of one of the springs 6, and the heavy hammer 4, the first hemisphere 1 and the second hemisphere 2 integrally fall down. Be equipped with a plurality of trompil 8 on first hemisphere 1 and the second hemisphere 2, after first hemisphere 1 and second hemisphere 2 fall into the aquatic, because the effect of buoyancy for first hemisphere 1 and second hemisphere 2 float on the surface of water, and the position of trompil 8 just is located the crossing position of first hemisphere 1 and second hemisphere 2 and horizontal plane, also can slightly down a little, guarantees that hydroenergy flows into first hemisphere 1 and second hemisphere 2 from trompil 8 can. A hole can be formed at the top of each of the first hemisphere 1 and the second hemisphere 2 for draining water in time when the water is stored.
Example two
As shown in fig. 3, the partial mechanism of the second embodiment is the same as that of the first embodiment, in order to ensure that water enters the first hemisphere 1 and the second hemisphere 2, the two floating balls can rapidly pull the spring 6 apart around the rotating shaft 7, a first lug 11 extends outwards from the lower part of the cambered surface of the first hemisphere 1, and the first lug 11 is hollow and is communicated with the first hemisphere 1. A second support lug 21 extends outwards from the lower part of the cambered surface of the second hemisphere 2, and the second support lug 21 is hollow and communicated with the second hemisphere 2. Two lugs constitute a "eight" word so just can increase the gravity of first hemisphere 1 and second hemisphere 2 for first hemisphere 1 and second hemisphere 2 open fast, and measuring rope 3 can continue to fall toward the bottom of big gun hole.
As shown in fig. 4, the measuring rope 3 is wound on a bobbin 9, and the bobbin 9 is installed in a box body and is rotatably connected with two sides of the box body; the two ends may be via bearings or otherwise to allow the spool to rotate. The controller 5 is mounted in the box and the meter is mounted at a position convenient for measuring the code holes 11. One end of the spool 9 is provided with a wire coil 10, the wire coil 10 is provided with a coding hole 11, the meter calculates the number of turns of the spool 9 through the coding hole 11, then the distance of the descending of the measuring rope 3 is calculated and transmitted to the controller 5, and in order to ensure the length of each turn of the measuring rope 3 to be consistent, the measuring rope 3 should adopt a wire with a thinner diameter. The gravity sensor is fixed on the heavy hammer 4 through glue or other fixing modes, the gravity sensor measures the force change of the heavy hammer 4 along with the falling of the heavy hammer 4, and the gravity sensor and the controller 5 can be in wired connection or wireless connection; the controller 5 records the meter reading and displays it on the display 12, and the operator can visually see the depth of the blast hole and the depth of the water in the blast hole via the display 12. In order to ensure the smooth retraction of the weight 4, the first hemisphere 1 and the second hemisphere 2, the distance between the two rotating shafts 7 should be smaller than the diameter of the upper end of the weight 4, so as to ensure that the first hemisphere 1 and the second hemisphere 2 can be retracted together when the weight 4 is retracted. To facilitate the retrieval of the measuring cord, a handle may be provided on the spool 9, and the measuring cord may be wound around the spool 9 by turning the handle.
The working principle of the application is as follows: when the first hemisphere 1, the second hemisphere 2 and the weight 4 fall into the blast hole integrally, if water exists in the blast hole, after the first hemisphere 1 and the second hemisphere 2 fall into the water, the openings 8 of the first hemisphere 1 and the second hemisphere 2 are consistent with the horizontal plane or slightly lower, so that water can flow into the first hemisphere 1 and the second hemisphere 2 from the openings 8. After the water enters the first hemisphere 1, as shown in fig. 5, the total force of five forces of the first hemisphere 1, namely the gravity G1 of the floating ball, the gravity G2 of the water, the tension T1 of the measuring rope 3, the buoyancy F1 of the water and the tension F2 of the spring 6 is F3, and F3 is the force of the fourth quadrant. As shown in fig. 6, the total force of five forces, i.e., G3 of the floating ball, G4 of water, T2 of the measuring rope 3, and F4 of the water, of the second hemisphere 2, F5 of the spring 6 is F6, and F6 is the third quadrant. The resultant forces F3 and F6 cause the first hemisphere 1 and the second hemisphere 2 to open around the rotation shaft 7, so that the spring 6 is lengthened, the gap between adjacent coils of the spring 6 is enlarged, and the measuring string 3 continues to fall under the gravity of the weight 4 to the bottom of the borehole, as shown in fig. 7. When the first hemisphere 1 and the second hemisphere 2 reach the water surface, the gravity sensor senses the change of the gravity of the weight due to the buoyancy, the controller 5 records the data L1 of the counter at this time, and when the weight 4 continuously falls to the bottom of the blast hole, the gravity sensor senses the change again, and the controller 5 records the data L2 of the counter at this time. Therefore, L2 is the depth of the blast hole, and L2-L1 is the depth of water in the blast hole. If the gravity sensor only detects one-time change, the fact that no water exists in the blast hole is indicated, and the measured depth is the depth of the blast hole.
For example, in a deep hole step blasting operation area, the step height is 15m, the blast hole ultra-depth is required to be 2.5m, and the diameter of the blast hole is 250 mm. In order to ensure high-quality blasting effect, five water-containing blast holes are tested for water depth and hole depth, the five water-containing blast holes are respectively marked as No. 1, No. 2, No. 3, No. 4 and No. 5 blast holes, and the five blast holes are sequentially tested for water depth and hole depth. The device is erected right above an orifice of a No. 1 blast hole, the iron cone starts to drive the measuring rope and the floating ball to fall under the action of gravity, and the gauge starts to obtain the falling length of the measuring rope in real time through the reduction of the number of turns of the winding coil. After the water surface is reached, the floating ball enables the iron cone not to continuously fall under the action of the buoyancy of the water, the gravity sensing device senses the change of the gravity at the moment, and the controller 5 records the data of the meter and records the length of the measuring rope at the moment through the display to be 13.7 m. The floating ball floats on the water surface, and the open pore of the floating ball is immersed in the water under the action of the gravity of the iron cone. Water can begin to pour into water through the trompil on the floater, and along with the increase gradually of the volume of water, first hemisphere 1 and second hemisphere 2 incline and elongate the spring in both sides respectively under the gravity of water to two hemispheroid floaters can loosen the measuring rope, make the iron cone continue the whereabouts. Until the iron cone falls to the bottom of the hole, the gravity sensing device senses the change of gravity, and the controller 5 records the data of the gauge and records the length of the measuring rope at the time through the display to be 17.2 m. Therefore, the depth of water and the depth of hole of the No. 1 blast hole are 3.5m and 17.2m respectively. And then testing other blast holes in sequence according to the method to respectively obtain that the water depth and the hole depth of the No. 2 blast hole are respectively 3.8m and 17.4m, the water depth and the hole depth of the No. 3 blast hole are respectively 5.4m and 17.2m, the water depth and the hole depth of the No. 4 blast hole are respectively 2.6m and 17.5m, and the water depth and the hole depth of the No. 4 blast hole are respectively 4.3m and 16.9 m. The device has the advantages of high accuracy, simple structure, convenience in operation, strong practicability, easiness in carrying, safety, reliability and the like when being used for testing the blast hole.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A blast hole depth measuring device, comprising: the device comprises a first hemisphere (1), a second hemisphere (2), a measuring rope (3), a heavy hammer (4), a controller (5) and a gravity sensor;
the side surface of the upper part of the first hemisphere (1) is fixedly connected with the side surface of the upper part of the second hemisphere (2) through a spring (6), and the side surface of the lower part of the first hemisphere (1) is hinged with a rotating shaft (7); the side surface of the lower part of the second hemisphere (2) is hinged with the rotating shaft (7);
one end of the measuring rope (3) is connected with the heavy hammer (4), and the other end of the measuring rope is connected with the controller (5); the spring (6) is a spiral spring; the measuring rope (3) is clamped and fixed by the adjacent spiral coils of the spring (6) in a natural state;
the first hemisphere (1) and the second hemisphere (2) are both provided with openings (8);
the first hemisphere (1) and the second hemisphere (2) are both hollow;
the gravity sensor is arranged on the heavy hammer (4);
the gravity sensor is electrically connected with the controller (5).
2. A blast hole depth measuring apparatus according to claim 1, wherein a gauge is provided in said controller (5), said gauge being electrically connected to said controller (5).
3. The blast hole depth measuring device according to claim 1, further comprising a display (12), said display (12) being connected to said controller (5).
4. The blasthole hole depth measurement device as claimed in claim 1, comprising two spring (6) connections and two spindles (7).
5. A blast hole depth measuring device according to claim 4, wherein two of said springs (6) are symmetrically disposed along a horizontal central axis of said first hemisphere (1) and said second hemisphere (2), and two of said shafts (7) are symmetrically disposed along a horizontal central axis of said first hemisphere (1) and said second hemisphere (2).
6. A blast hole depth measuring apparatus according to claim 1, wherein a first lug (11) extends outwardly from an outer surface of a lower portion of the first hemisphere (1); the first support lug (11) is hollow, and the first support lug (11) is communicated with the first hemisphere (1); a second support lug (21) extends outwards from the outer surface of the lower part of the second hemisphere (2), the second support lug (21) is hollow, and the second support lug (21) is communicated with the second hemisphere (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921598445.9U CN210513090U (en) | 2019-09-25 | 2019-09-25 | Blast hole depth measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921598445.9U CN210513090U (en) | 2019-09-25 | 2019-09-25 | Blast hole depth measuring device |
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| CN210513090U true CN210513090U (en) | 2020-05-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117329963A (en) * | 2023-10-08 | 2024-01-02 | 威海晶合数字矿山技术有限公司 | Depth measuring device and open-air blasthole acceptance instrument comprising same |
-
2019
- 2019-09-25 CN CN201921598445.9U patent/CN210513090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117329963A (en) * | 2023-10-08 | 2024-01-02 | 威海晶合数字矿山技术有限公司 | Depth measuring device and open-air blasthole acceptance instrument comprising same |
| CN117329963B (en) * | 2023-10-08 | 2024-03-19 | 威海晶合数字矿山技术有限公司 | Depth measuring device and open-air blasthole acceptance instrument comprising same |
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