CN113155069A - Mine roof separation layer measuring device and measuring method thereof - Google Patents
Mine roof separation layer measuring device and measuring method thereof Download PDFInfo
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- CN113155069A CN113155069A CN202110276255.0A CN202110276255A CN113155069A CN 113155069 A CN113155069 A CN 113155069A CN 202110276255 A CN202110276255 A CN 202110276255A CN 113155069 A CN113155069 A CN 113155069A
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- 238000000926 separation method Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000005065 mining Methods 0.000 claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 20
- 238000005259 measurement Methods 0.000 claims description 16
- 230000032798 delamination Effects 0.000 claims description 13
- 241000935974 Paralichthys dentatus Species 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 210000000078 claw Anatomy 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process 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
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- Testing Or Calibration Of Command Recording Devices (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention provides a mining roof separation measuring device and a measuring method thereof, and the mining roof separation measuring device comprises a measuring rope body and a conducting mechanism for obtaining the displacement of the measuring rope body, wherein the measuring rope body is divided into a first rope body and a second rope body, the head end of the second rope body is fixed at the input end of the conducting mechanism, a connecting piece of the connecting mechanism is used for enabling the first rope body and the second rope body to be in sliding connection, the position of the connecting piece is a connecting point of the first rope body and the second rope body, the sum of the distance from the head end of the first rope body to the connecting point and the distance from the head end of the second rope body to the connecting point can be changed along with the change of the position of the connecting point, the supporting and fixing of the position of the connecting piece are realized through a localizer, when the sum of the distances is the same as the distance from an anchor claw to the head end of the second rope body, the rope body is measured to be in a straight state without depending on a zero clearing function and cutting unnecessary parts of the measuring rope body, and the problem that the mounting work is low efficiency possibly caused by the fact that the rope body is cut to be in a straight state is avoided .
Description
Technical Field
The invention relates to the technical field of coal mine disaster prevention and control, in particular to a mine roof separation layer measuring device and a measuring method thereof.
Background
The underground environment of the coal mine is special, and various coal mine accidents are frequently caused by the ever-changing geological environment, wherein the roof disaster accident accounts for a very high percentage in the coal mine accidents, and the real-time monitoring of the roof separation condition is an effective means for preventing the roof disaster accident.
At present, various mine roof separation measuring devices exist, because an electric control roof separation measuring device is internally provided with a circuit board, displacement can be converted into analog quantity signals, then analog quantity is collected and processed and then converted into separation values, the inventor finds that no matter the roof separation measuring device is purely mechanical or the electric control roof separation measuring device, if a rope is in a loose state before measurement, straightness cannot be kept, even if an anchor rod is displaced during measurement, a conducting mechanism is not acted by tension in the process that the rope tends to be in the straight state from the loose state due to the stretching of the anchor rod, so that the final result is inaccurate, aiming at the problem, the measuring device comprises a potentiometer and an upper computer with a zero clearing function at present, and after the rope is driven to be straight by rotating a potentiometer rotating shaft, the data zero clearing that will rotate the production because of the pivot through the host computer, but the measuring device of pure mechanical type and the measuring device who does not possess above-mentioned function are for guaranteeing the straightness accuracy of the rope body, need cut short the unnecessary length of rope body through the mode of cutting out usually, just later with the rope body with the input that the conduction mechanism is fixed in to the knot or other modes, but the length of cutting out is difficult to handle the accuse, can not comparatively fast, accurately make the rope body reach straight state when obtaining fixedly, lead to the preparation installation work before the test comparatively inefficiency.
Disclosure of Invention
The invention provides a mine roof separation measuring device and a measuring method thereof, aiming at solving the technical problem of low efficiency of installation work before mine roof separation measurement caused by the fact that a rope body can be fixed only by cutting the rope body without a zero clearing function in the prior art.
The invention provides a mining roof separation measuring device, which comprises a measuring unit and a connecting mechanism, wherein the measuring unit comprises a plurality of measuring rope bodies and conducting mechanisms which are arranged in one-to-one correspondence with the measuring rope bodies, the conducting mechanisms are used for acquiring the displacement of the measuring rope bodies, and the connecting mechanism comprises a connecting piece and a positioning piece; the measuring rope body comprises a first rope body and a second rope body, the tail end of the second rope body is connected to the tail end of the first rope body in a sliding mode through the connecting piece, the positioning piece is used for enabling the position of the connecting piece to be fixed, the head end of the second rope body is fixed to the input end of the conducting mechanism, and the head end of the first rope body is provided with the fluke.
The connecting piece can be fixed in the end of the first rope body and connected in a sliding manner in the end of the second rope body, and also can be fixed in the end of the second rope body and connected in a sliding manner in the end of the first rope body, and only the first rope body and the second rope body need to be matched in a sliding manner.
According to the mining roof separation measuring device provided by the invention, the connecting piece is provided with a first through hole, the positioning piece comprises a sleeve and a pressing piece, the sleeve is provided with a second through hole, the connecting piece is fixedly connected to the tail end of the second rope body, the first rope body is sequentially in sliding fit with the first through hole and the second through hole from top to bottom, the connecting piece is supported at the upper end of the sleeve, and the pressing piece can penetrate through the sleeve and press the first rope body, so that the position of the sleeve on the first rope body is fixed.
According to the mining roof separation measuring device provided by the invention, the pressing piece comprises a second threaded fastener, the sleeve is provided with a threaded hole matched with the second threaded fastener, and the threaded hole can allow the second threaded fastener to enter the second through hole.
The mining roof separation layer measuring device further comprises a circuit board, a supporting assembly and a display unit, wherein the conducting mechanism comprises a potentiometer, the head end of the second rope body is fixed to a rotating shaft of the potentiometer, and the data output end of the potentiometer is electrically connected with the circuit board; the support assembly comprises a first support part and a second support part, the circuit board is fixed on the first support part, one side of the second support part is connected with the first support part, and the potentiometer is installed on the other side of the second support part; the display unit is electrically connected with the circuit board.
The mining roof separation measuring device further comprises a sealing ring, the first supporting piece is provided with a ring position used for being connected with the sealing ring and a groove used for placing the circuit board, the groove is located on one side, connected with the second supporting piece, of the first supporting piece, the ring position surrounds the groove, the sealing ring can be abutted against the ring position and the second supporting piece, the second supporting piece is provided with a third through hole through which a lead used for connecting the potentiometer and the circuit board can penetrate, and the third through hole is connected with the lead in a sealing mode through sealing glue.
According to the mining roof separation layer measuring device provided by the invention, the second supporting piece and the first supporting piece are respectively provided with a groove body which is matched with each other.
According to the mining roof separation measuring device provided by the invention, the first support is connected with the second support through the first threaded fastener.
According to the mining roof separation measuring device provided by the invention, a cavity for accommodating the conducting mechanism is arranged in the second supporting piece, the second supporting piece is provided with a detachable rear cover, and the top of the second supporting piece is provided with a fourth through hole which can be penetrated by the first rope body or the second rope body and is in clearance fit with the first rope body or the second rope body.
According to the mining roof separation measuring device provided by the invention, the diameters of the first rope body and the second rope body are the same, and the fourth through hole is in sliding connection with the first rope body and the second rope body through the lifting bearing.
The mining roof separation layer measuring device provided by the first aspect of the invention has the following beneficial effects: through will measuring the rope body split and be independent first rope body and second rope body, the end of first rope body and the end of second rope body pass through connecting piece sliding connection, the connecting piece position is the tie point between them, the sum of the distance of first rope body head end to the tie point and the distance of the head end of second rope body to the tie point can change along with the change of tie point position, and realize the support of connecting piece position through the locator and fix, when above-mentioned distance sum is the same with the distance of fluke to the head end of second rope body, the reach straight state of measuring the rope body, need not to rely on zero clearing function and need not to cut off the unnecessary part of measuring the rope body, avoided making the rope body reach straight state through the mode of cutting off the rope body and probably lead to the problem that the installation work is comparatively inefficient.
The second aspect of the invention provides a method for performing delamination measurement by using a mining roof delamination measurement device, which is the mining roof delamination measurement device provided by the invention, and comprises the following steps: step 1, fixing the fluke connected with the first rope body at a measuring point of a specified depth of a top plate, fixing the connecting piece at the tail end of the second rope body, and fixing the conduction mechanism at the bottom of the top plate; step 2, the tail end of the first rope body is in sliding fit with the connecting piece, so that the first rope body is kept in a natural vertical state, the connecting piece is pulled upwards, the connecting piece is moved upwards along the first rope body until the second rope body is stretched into a vertical state by the connecting piece moving upwards; step 3, supporting and fixing the connecting piece through a positioning piece, keeping the connecting piece at the position, and keeping the measuring rope body in a vertical state; and 4, obtaining a delamination value by observing the displacement quantity measured by the conducting mechanism.
The method for measuring the separation layer by the mine roof separation layer measuring device provided by the second aspect of the invention has the following beneficial effects: the method utilizes the mine roof separation measuring device to carry out separation measurement, can quickly realize a straight state of the measuring rope body through the above few steps without carrying out zero clearing, and improves the working efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a mine roof delamination measurement device provided by an embodiment of the invention;
FIG. 2 is a schematic view of the installation of the mine roof delamination measurement device of FIG. 1;
FIG. 3 is a schematic structural front view of a roof separation measuring device for a mine, according to another embodiment of the invention;
FIG. 4 is a schematic cross-sectional view A-A of FIG. 3;
description of reference numerals:
1. a measuring unit; 2. measuring a rope body; 21. a first rope body; 211. a fluke; 22. a second rope body; 3. a conducting mechanism; 31. a potentiometer; 311. a rotating shaft; 312. a wire; 4. a connecting mechanism; 41. a connecting member; 411. a first through hole; 42. a positioning member; 421. a sleeve; 4211. a second through hole; 422. a threaded hole; 423. a compression member; 4231. a second threaded fastener; 5. a circuit board; 6. a support assembly; 61. a first support member; 611. looping; 612. a groove; 613. a trough body; 614. a first threaded fastener; 62. a second support member; 621. a third through hole; 622. sealing glue; 623. a trough body; 624. a cavity; 625. a detachable rear cover; 626. a fourth via hole; 6261. a lifting bearing; 63. a seal ring; 7. a display unit; 8. a top plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "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 only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, reference to the description of the terms "one embodiment," "first-aspect embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The mine roof separation measuring device provided by the invention is described in the following with reference to fig. 1-4.
As shown in fig. 1-2, an embodiment of the present invention provides a roof separation measuring device for a mine, including a measuring unit 1 and a connecting mechanism 4, where the measuring unit 1 includes a plurality of measuring rope bodies 2 and conducting mechanisms 3 disposed in one-to-one correspondence with the measuring rope bodies 2, the conducting mechanisms 3 are used to obtain displacement of the measuring rope bodies 2, and the connecting mechanism 4 includes a connecting member 41 and a positioning member 42; the measuring rope body 2 comprises a first rope body 21 and a second rope body 22, the tail end of the second rope body 22 is connected to the tail end of the first rope body 21 in a sliding mode through a connecting piece 41, a positioning piece 42 is used for enabling the position of the connecting piece 41 to be fixed, the head end of the second rope body 22 is fixed to the input end of the conducting mechanism 3, and the head end of the first rope body 21 is provided with a fluke 211.
The connecting element 41 can be fixed at the end of the first rope 21 and slidably connected to the end of the second rope 22, or fixed at the end of the second rope 22 and slidably connected to the end of the first rope 21, by only sliding the first rope 21 and the second rope 22.
In this embodiment, the connecting member 41 is fixed at the end of the second rope 22 and slidably connected to the end of the first rope 21, and the following steps can be completed: step 1, fixing an anchor fluke connected with a first rope body at a measuring point of a specified depth of a top plate, fixing a connecting piece at the tail end of a second rope body, and fixing a conduction mechanism at the bottom of the top plate; step 2, the tail end of the first rope body is in sliding fit with the connecting piece, so that the first rope body is kept in a natural vertical state, the connecting piece is pulled upwards, the connecting piece is moved upwards along the first rope body until the second rope body is stretched into a vertical state by the upwards-moved connecting piece; step 3, supporting and fixing the connecting piece through a positioning piece, and keeping the measuring rope body in a vertical state; and 4, observing the displacement quantity measured by the conducting mechanism to obtain a delamination value.
Although the positioning element 42 can support and fix the connecting element 41 by a knot formed by binding the rope body, binding the knot on site as the positioning element 42 is not only cumbersome, and the tied point is easy to loosen due to the fact that the rope body is usually thick, which easily causes a large measurement error, in order to solve the above problems, the connecting element 41 of the embodiment is provided with a first through hole 411, the positioning element 42 comprises a sleeve 421 and a pressing element 423, the sleeve 421 is provided with a second through hole 4211, the connecting element 41 is fixedly connected to the tail end of the second rope body 22, the first rope body 21 is sequentially in sliding fit with the first through hole 411 and the second through hole 4211 from top to bottom, the connecting element 41 is supported at the upper end of the sleeve 421, and the pressing element 423 can penetrate through the sleeve 421 and press the first rope body 21, so that the position of the sleeve 421 on the first rope body 21 is fixed. With such arrangement, as long as the end of the first rope 21 passes through the first through hole 411 and the second through hole 4211 in sequence, the first rope 21 is kept in a natural vertical state, the second rope 22 is pulled upwards to make the second rope 22 vertical, and then the sleeve 421 is pressed against the first rope 21 by the pressing member 423, the measuring rope 2 composed of the first rope 21 and the second rope 22 can be kept in a straight state, the positioning member 42 has a simple structure, is easy to operate, has few operation steps,
according to this embodiment, the compression member 423 comprises a second threaded fastener 4231, the sleeve 421 is provided with a threaded hole 422 which is matched with the second threaded fastener 4231, and the threaded hole 422 is transversely arranged on the sleeve 421. The second threaded fastener 4231 is screwed into the threaded hole 422, the thread feeding amount of the second threaded fastener 4231 is increased, the first rope body 21 is extruded by the rope body passing through the second through hole 4211 together with the sleeve 421 through the second threaded fastener 4231, the position of the sleeve 421 on the first rope body 21 is fixed under the extrusion force, the sleeve can be firmly fixed at the specified position of the first rope body in a thread matching mode, the sleeve 421 is prevented from falling off along the first rope body, the sleeve is easy to disassemble and assemble, meanwhile, the existing standard component can be taken as the second threaded fastener 4231, special processing is not needed, the structure is simple, materials are easy to obtain, and the cost is low.
The method for performing delamination measurement by the present embodiment includes the steps of: step 1, fixing the fluke 211 connected with the first rope body 21 at a measuring point with a specified depth of the top plate 8, fixing the connecting piece 41 at the tail end of the second rope body 22, and fixing the conduction mechanism 3 at the bottom of the top plate 8; step 2, the tail end of the first rope body 21 sequentially passes through the first through hole 411 of the connecting piece 41 and the second through hole 4211 of the sleeve 421, so that the first rope body 21 is kept in a natural vertical state, and the second rope body 22 is pulled up under the condition that the measurement data of the conduction mechanism 3 are not interfered, so that the second rope body 22 is also in a vertical state; step 3, pulling up the sleeve 421 to make the top of the sleeve 421 abut against the bottom of the connecting piece 41; step 4, screwing the second threaded fastener 4231 into the threaded hole 422 and increasing the thread feeding amount until the second threaded fastener 4231 and the sleeve 421 jointly extrude the first rope body 21, fixing the position of the sleeve 421 on the first rope body 21 under the extrusion force, and keeping the measuring rope body 2 in a vertical state at the moment; and 5, observing the displacement quantity measured by the conducting mechanism 3 to obtain a delamination value.
As shown in fig. 3-4, another embodiment of the present invention provides a roof separation measuring device for a mine, further comprising a circuit board 5, a supporting component 6 and a display unit 7, wherein the conducting mechanism 3 comprises a potentiometer 31, a head end of the second rope 22 is fixed to a rotating shaft 311 of the potentiometer 31, and a data output end of the potentiometer 31 is electrically connected to the circuit board 5; the supporting assembly 6 comprises a first supporting member 61 and a second supporting member 62, the circuit board 5 is fixed on the first supporting member 61, one side of the second supporting member 62 is connected to the first supporting member 61, and the potentiometer 31 is installed on the other side of the second supporting member 62; the display unit 7 is electrically connected with the circuit board 5. Because the purely mechanical roof separation measuring device needs to observe the scales to know the displacement of each fluke 211, the scales are usually hung at the roof along with the device, the observation is inconvenient, the misreading is easily caused in the dim underground environment, and the displacement of each fluke 211 needs to be increased or decreased in a manual mode to obtain the separation value, the real-time performance is poor, therefore, the potentiometer 31 electrically connected with the circuit board 5 is used as the conduction mechanism 3, each potentiometer 31 obtains the displacement of the fluke 211 through the rotation period of the rotating shaft 311, the separation value can be directly calculated through the circuit board 5 and fed back to the display unit 7, the manual calculation is not needed, the display unit 7 can be a display remotely connected with the circuit board 5, the observation is easy, and the display unit can also be directly fixed on the first supporting piece 61, because the measuring rope body 2 at one end of the potentiometer 31 needs to manually adjust the length, the circuit board 5 and the potentiometer 31 are separated through the first supporting piece 61 and the second supporting piece 62, the circuit board 5 does not need to occupy the plane of the potentiometer 31, one side of the potentiometer 31 is more open, the operation space is increased, and a worker can easily adjust the measuring rope body 2 connected with the potentiometer 31.
According to the embodiment, the sealing device further includes a sealing ring 63, the first supporting member 61 is provided with a ring position 611 for connecting the sealing ring 63 and a groove 612 for placing the circuit board 5, the groove 612 is located on one side of the first supporting member 61 connected with the second supporting member 62, the ring position 611 surrounds the groove 612, the sealing ring 63 can abut against the ring position 611 and the second supporting member 62, the sealing ring 63 can be fixed on the ring position 611 in an adhering manner, the second supporting member 62 is provided with a third through hole 621 through which a lead 312 for connecting the potentiometer 31 and the circuit board 5 can pass, and the third through hole 621 is connected with the lead 312 in a sealing manner through a sealant 622. The first supporting member 61 is connected to the second supporting member 62 through the sealing ring 63, so that the space of the groove 612 in the ring 611 is sealed and isolated from the external environment, thereby preventing the circuit board 5 in the groove 612 from directly contacting with external water vapor, and the third through hole 621 is sealed and connected to the conducting wire 312 through the sealing glue 622, thereby preventing water from flowing into the circuit board 5 from the conducting wire 312, further improving the water-blocking effect of the circuit board 5, and the circuit board 5 can be in a state of being exposed in the external environment only by directly separating the first supporting member 61 from the second supporting member 62, so that the circuit board 5 is easy to maintain.
According to the present embodiment, the second support 62 and the first support 61 are respectively provided with the groove 623 and the groove 613 which are matched. The first supporting piece 61 and the second supporting piece 62 can be quickly positioned through the groove body 613 and the groove body 623, the mounting efficiency is improved, the matching accuracy of the first supporting piece 61 and the second supporting piece 62 is improved, and the problem that the water seepage is finally caused due to the deviation of the sealing ring 63 caused by the deviation of the first supporting piece 61 and the second supporting piece 62 in the combining process is avoided.
According to the present embodiment, the first support 61 is connected to the second support 62 by a first threaded fastener 614. The first support 61 and the second support 62 can be tightly attached to the sealing ring 63 by increasing the screw feeding amount of the first screw fastener 614, and the sealing effect is further improved.
The second support member 62 is provided with a cavity 624 for accommodating the conducting mechanism 3, so that the potentiometer 31 or other conducting mechanisms 3 can be kept dry and clean, the second support member 62 is provided with a detachable rear cover 625, and the top of the second support member 62 is provided with a fourth through hole 626 through which the first rope 21 or the second rope 22 can pass and which is in clearance fit with the first rope 21 or the second rope 22.
In order to prevent water from flowing into the potentiometer 31 along the first rope 21 and the second rope 22, the fourth through hole 626 is slidably connected with the first rope 21 and the second rope 22 through the lifting bearing 6261, the lifting bearing 6261 can play a certain water-stopping role while keeping the first rope 21 or the second rope 22 stably lifted and lowered in the fourth through hole 626, and in order to enable the first rope 21 and the second rope 22 to simultaneously contact with the inside of the lifting bearing 6261, the diameters of the first rope 21 and the second rope 22 are the same.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The mining roof separation measuring device comprises a measuring unit, wherein the measuring unit comprises a plurality of measuring rope bodies and conducting mechanisms which are arranged in one-to-one correspondence with the measuring rope bodies, and the conducting mechanisms are used for acquiring the displacement of the measuring rope bodies;
the measuring rope body comprises a first rope body and a second rope body, the tail end of the second rope body is connected to the tail end of the first rope body in a sliding mode through the connecting piece, the positioning piece is used for enabling the position of the connecting piece to be fixed, the head end of the second rope body is fixed to the input end of the conducting mechanism, and the head end of the first rope body is provided with the fluke.
2. The mining roof separation measuring device according to claim 1, wherein the connecting member is provided with a first through hole, the positioning member comprises a sleeve and a pressing member, the sleeve is provided with a second through hole, the connecting member is fixedly connected to the tail end of the second rope body, the first rope body is sequentially in sliding fit with the first through hole and the second through hole from top to bottom, the connecting member is supported at the upper end of the sleeve, and the pressing member can pass through the sleeve and press the first rope body.
3. The mining roof separation measuring device of claim 2, wherein the compression member comprises a second threaded fastener, and the sleeve is provided with a threaded hole matched with the second threaded fastener, and the threaded hole can allow the second threaded fastener to enter the second through hole.
4. The mining roof delamination measurement device of any of claims 1 to 3, further comprising:
the transmission mechanism comprises a potentiometer, the head end of the second rope body is fixed on a rotating shaft of the potentiometer, and the data output end of the potentiometer is electrically connected with the circuit board;
the circuit board is fixed on the first supporting piece, one side of the second supporting piece is connected with the first supporting piece, and the potentiometer is installed on the other side of the second supporting piece;
and the display unit is electrically connected with the circuit board.
5. The mining roof separation layer measuring device according to claim 4, further comprising a sealing ring, wherein the first support member is provided with a ring position for connecting the sealing ring and a groove for placing the circuit board, the groove is located on one side where the first support member is connected with the second support member, the ring position encloses the groove, the sealing ring can be abutted against the ring position and the second support member, the second support member is provided with a third through hole for a lead wire for connecting the potentiometer and the circuit board to penetrate through, and the third through hole is hermetically connected with the lead wire through a sealant.
6. The mining roof separation layer measuring device according to claim 5, wherein the second supporting member and the first supporting member are respectively provided with a groove body which is matched with each other.
7. The mining roof separation measurement device of claim 5, wherein the first support is connected to the second support by a first threaded fastener.
8. The mining roof separation measuring device according to claim 4, wherein a cavity for accommodating the conducting mechanism is arranged inside the second supporting member, the second supporting member is provided with a detachable rear cover, and a fourth through hole through which the first rope body or the second rope body can pass and which is in clearance fit with the first rope body or the second rope body is arranged at the top of the second supporting member.
9. The mining roof separation measuring device of claim 8, wherein the first rope and the second rope are the same diameter, and the fourth through hole is slidably connected with the first rope and the second rope through a lifting bearing.
10. A method for conducting delamination measurement by using the mining roof delamination measurement device of claim 1, comprising the following steps:
step 1, fixing the fluke connected with the first rope body at a measuring point of a specified depth of a top plate, fixing the connecting piece at the tail end of the second rope body, and fixing the conduction mechanism at the bottom of the top plate;
step 2, the tail end of the first rope body is in sliding fit with the connecting piece, so that the first rope body is kept in a natural vertical state, the connecting piece is pulled upwards, the connecting piece is moved upwards along the first rope body until the second rope body is stretched into a vertical state by the connecting piece moving upwards;
step 3, supporting and fixing the connecting piece through the positioning piece, wherein the measuring rope body is kept in a vertical state;
and 4, obtaining a delamination value by observing the displacement quantity measured by the conducting mechanism.
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