CN114964031A - Mining passive digital display roof separation layer optical fiber sensing device - Google Patents
Mining passive digital display roof separation layer optical fiber sensing device Download PDFInfo
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- CN114964031A CN114964031A CN202210708275.5A CN202210708275A CN114964031A CN 114964031 A CN114964031 A CN 114964031A CN 202210708275 A CN202210708275 A CN 202210708275A CN 114964031 A CN114964031 A CN 114964031A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 26
- 238000005065 mining Methods 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 title claims description 14
- 239000003245 coal Substances 0.000 claims abstract description 66
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 34
- 238000005259 measurement Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing 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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/268—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light using optical fibres
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Abstract
The application belongs to the technical field of coal mining, and discloses mining passive digital display roof absciss layer optical fiber sensing device is disclosed, including setting up at the first basic point of lithosphere and setting up the second basic point in the coal seam, first basic point and second basic point are connected through the rope sheave of wire rope rather than the detection module of below respectively, the rope sheave passes through gear drive unit and is connected with the digital display unit, gear drive unit still is connected with the deformation unit, the deformation unit passes through optic fibre and is connected with the remote monitoring unit. The steel wire rope is driven to stretch through the displacement of the coal seam, so that the driving gear rotates and the displacement is displayed through the digital display unit, the displacement condition of the coal seam can be displayed in real time, the accuracy is high, an external power supply is not needed, and the safety of a coal mine roadway can be ensured; and then, by arranging the deformation unit, the deformation amount of the deformation unit is transmitted to the remote monitoring unit by utilizing optical fiber transmission, so that the remote monitoring of the displacement of the coal bed can be realized, and the optical fiber transmission does not need a power supply, thereby effectively ensuring the safety of the roadway.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a passive digital display roof separation layer optical fiber sensing device for a mine.
Background
The method for predicting coal seam settlement commonly used at present mainly predicts the deformation of the underground pillar of the mine so as to judge the settlement condition of the coal seam and the rock stratum. And the deformation of the mine prop needs manual measurement, and the measurement has errors, and because the measurement of data and the calculation monitoring need manual work, the situation that a detection person does not patrol to the area, the displacement and the settlement of the area are not monitored, and a supervision blind area exists. And data can not be transmitted to a central control room in real time to automatically calculate an output result, whether displacement occurs or not can be known only by subsequent manual measurement, data processing is complex, hysteresis is severe, and the state of an underground coal seam of a coal mine can not be reflected in real time.
Disclosure of Invention
In order to solve the problems, the invention provides a mining passive digital display roof separation optical fiber sensing device which can detect the sedimentation conditions of coal seams and rock layers in real time.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a mining passive digital display roof absciss layer optical fiber sensing device, is including setting up the first basic point at the lithosphere and setting up the second basic point in the coal seam, first basic point and second basic point are connected rather than the detection module's of below rope sheave through wire rope respectively, the rope sheave passes through gear drive unit and is connected with the digital display unit, gear drive unit still is connected with deformation unit, deformation unit passes through optic fibre and is connected with the remote monitoring unit.
By adopting the technical scheme, the first base point, the second base point and the detection module are arranged, the displacement of the coal seam is detected by stretching the steel wire rope, the whole detection module adopts a gear transmission structure, the steel wire rope is driven to stretch by the displacement of the coal seam, so that the driving gear rotates and is displayed by the digital display unit, the displacement condition of the coal seam can be displayed in real time, the accuracy is high, an external power supply is not needed, and the safety of a coal mine tunnel can be ensured; and then, by arranging the deformation unit, the deformation amount of the deformation unit is transmitted to the remote monitoring unit by utilizing optical fiber transmission, so that the remote monitoring of the displacement of the coal bed can be realized, and the optical fiber transmission does not need a power supply, thereby effectively ensuring the safety of the roadway.
Further, the detection module comprises a shell, and the shell is arranged below the coal seam and is relatively fixed with the coal seam.
Through adopting above-mentioned technical scheme, with detection module relatively fixed setting in the coal seam below, detection module can be along with the subsiding of coal seam displacement downwards simultaneously promptly to the position of coal seam displacement is judged to the detection module that two basic point below correspond.
Furthermore, a rope wheel shaft is rotatably arranged on the shell, a clockwork spring is arranged on the rope wheel shaft, the rope wheel is fixed on the rope wheel shaft, a cavity is formed in the rope wheel and matched with the clockwork spring, one end of a steel wire rope is fixed at the first base point or the second base point, and the other end of the steel wire rope is fixedly wound on the rope wheel.
Through adopting above-mentioned technical scheme, set up clockwork spring in the rope sheave, after wire rope twined on the rope sheave, clockwork spring can reduce measuring error with wire rope pretension.
Furthermore, one end of the rope wheel shaft extends out of the shell to be provided with a handle, the other end of the rope wheel shaft is fixedly provided with a locking wheel, the gear transmission unit comprises a gear sleeve, and the gear sleeve is provided with inner teeth matched with the locking wheel.
By adopting the technical scheme, the handle and the locking wheel are arranged on the rope wheel shaft, the rope wheel shaft and the rope wheel are pulled out through the handle to separate the locking wheel from the gear sleeve when the rope wheel is used, then the steel wire rope is wound on the rope wheel, meanwhile, the power is stored on the spring, and finally, the rope wheel shaft and the rope wheel are pushed inwards through the handle, so that the locking wheel enters the gear sleeve and is meshed with the gear sleeve, and the connection between the rope wheel and the gear transmission unit is realized.
Furthermore, one end, far away from the rope sheave, of the gear sleeve is fixedly connected with a first gear, a second gear is meshed on the first gear, a third gear is arranged on one side of the second gear in a synchronous rotating mode, a fourth gear is meshed on the third gear, and the fourth gear is connected with a digital display unit.
Through adopting above-mentioned technical scheme, set up second gear, third gear and fourth gear between first gear and digital display unit, the accessible sets up the tooth number ratio between each gear and controls the drive ratio between each gear to the numerical value that the assurance digital display unit shows is unanimous with the displacement value that the coal seam subsides.
Furthermore, the digital display unit comprises a first digital display wheel which is connected with a fourth gear in a synchronous rotating mode, a first step gear is arranged on one side of the first digital display wheel in a synchronous rotating mode, the first step gear is meshed with a half tooth portion of the first linkage gear, a full tooth portion of the first linkage gear is meshed with a first follow-up gear, a second digital display wheel and a second step gear are arranged on the side of the first follow-up gear in a synchronous rotating mode, the second step gear is meshed with a half tooth portion of the second linkage gear, a full tooth portion of the second linkage gear is meshed with a second follow-up gear, a third digital display wheel is arranged on the side of the second follow-up gear in a synchronous rotating mode, the first digital display wheel, the first step gear, the first follow-up gear, the second digital display wheel, the second step gear, the second follow-up gear and the third digital display wheel are coaxially arranged, and the first linkage gear and the second linkage gear are coaxially arranged.
By adopting the technical scheme, the digital display wheel, the stepping gear, the linkage gear and the follow-up gear are arranged, so that the linkage among the 3 digital display wheels is realized, and the numerical value displayed by the digital display unit can reach three digits.
Furthermore, a fifth gear is meshed with one side, away from the second gear, of the first gear, a sleeve is fixedly arranged on a middle side plate of the shell, a lead screw is connected to the inner thread of the sleeve, a rotating wheel is fixedly arranged at one end of the lead screw, the rotating wheel is meshed with the fifth gear, a spring piece is arranged on the shell in an overhanging mode, the other end of the lead screw is attached to the spring piece, and the spring piece is connected with a remote monitoring unit through optical fibers.
Through adopting above-mentioned technical scheme, set up lead screw and spring leaf, when the displacement appears in the coal seam, first gear drive fifth gear revolve, and fifth gear drives and rotates the wheel rotation, rotates the wheel and drives the lead screw and push away the spring leaf along axial motion and make the spring leaf take place deformation, through optic fibre with spring leaf deformation transmission to remote monitoring unit, convert the spring leaf deformation into the coal seam displacement volume and show through remote monitoring unit, realize the remote monitoring of coal seam displacement.
In conclusion, the invention has the following beneficial effects:
1. in the application, the first base point, the second base point and the detection module are arranged, the displacement of the coal seam is detected through the stretching of the steel wire rope, the whole detection module adopts a gear transmission structure, the steel wire rope is driven to stretch through the displacement of the coal seam, so that the driving gear rotates and is displayed through the digital display unit, the displacement condition of the coal seam can be displayed in real time, the accuracy is high, an external power supply is not needed, and the safety of a coal mine tunnel can be ensured;
2. in the application, the detection modules are relatively and fixedly arranged below the coal seam, namely the detection modules can simultaneously displace downwards along with the sedimentation of the coal seam, so that the displacement positions of the coal seam can be judged through the detection modules corresponding to the lower parts of the two base points, and if only the value of the detection module corresponding to the first base point changes, the coal seam between the first base point and the second base point is settled; if the values of the detection modules corresponding to the first base point and the second base point are changed, the coal seam below the second base point is indicated to be displaced;
3. in this application, through setting up lead screw and spring leaf, when the displacement appears in the coal seam, first gear drives the rotation of fifth gear, the fifth gear drives and rotates the wheel rotation, it pushes away the spring leaf along axial motion and makes the spring leaf take place deformation to rotate the wheel drive lead screw, transmit the spring leaf deformation to the remote monitoring unit through optic fibre, change the spring leaf deformation into the coal seam displacement volume and show through the remote monitoring unit, realize the remote monitoring of coal seam displacement, and the same power that does not need of optical fiber transmission, effectively guarantee tunnel safety.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the overall structure of a detection module according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a detection module according to an embodiment of the present invention;
in the figure: A. a rock layer; B. a coal seam; 1. a first base point; 2. a second base point; 10. a wire rope; 20. a detection module; 21. a housing; 30. a sheave; 31. a rope pulley shaft; 32. a clockwork spring; 33. a handle; 34. a locking wheel; 40. a gear transmission unit; 41. a gear sleeve; 42. a first gear; 43. a second gear; 44. a third gear; 45. a fourth gear; 46. a fifth gear; 50. a digital display unit; 51. a first digital display wheel; 52. a first step gear; 53. a first linkage gear; 54. a first follower gear; 55. a second digital display wheel; 56. a second step gear; 57. a second linkage gear; 58. a second follower gear; 59. a third digital display wheel; 60. a deformation unit; 61. a sleeve; 62. a screw rod; 63. a rotating wheel; 64. a spring plate; 70. and a remote monitoring unit.
Detailed Description
The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.
As shown in fig. 1 to 3, the embodiment of the application discloses a mining passive digital display roof separation optical fiber sensing device, which includes a first base point 1 arranged on a rock layer a and a second base point 2 arranged on a coal seam B, wherein a detection module 20 is arranged below the coal seam B, and the detection module 20 is relatively fixed with the coal seam B. Detection module 20 includes casing 21, be provided with rope sheave 30 in the casing 21, gear drive unit 40, digital display unit 50 and deformation unit 60, first basic point 1 and second basic point 2 are connected rather than the rope sheave 30 that the below corresponds through wire rope 10 respectively, rope sheave 30 passes through gear drive unit 40 and is connected with digital display unit 50, thereby subside through coal seam B makes wire rope 10 tensile drive rope sheave 30, the displacement information transmission that rethread gear drive unit 40 subsided coal seam B reaches digital display unit 50 and shows, wholly adopt the gear drive structure, the accuracy is high and need not external power supply, can guarantee coal mine tunnel safety, can show coal seam B's displacement condition in real time through digital display unit 50.
The deformation unit 60 is connected with the gear transmission unit 40 and is connected with the remote monitoring unit 70 through an optical fiber. Drive deformation unit 60 through gear drive unit 40 and take place elastic deformation, recycle optic fibre and convey elastic deformation to remote monitoring unit 70, convert elastic deformation into coal seam B displacement volume and show by remote monitoring unit 70, realize the remote monitoring of coal seam B displacement, and the optic fibre transmission does not need the power equally, effectively guarantees tunnel safety.
In specific implementation, the detection module 20 is fixed relative to the coal seam B, so that the position of the coal seam B in displacement can be determined according to the values of the detection module 20 corresponding to the lower parts of the two base points, and if only the value of the detection module 20 corresponding to the first base point 1 changes, it is said that the coal seam B between the first base point 1 and the second base point 2 is settled; if the values of the detection modules 20 corresponding to the first base point 1 and the second base point 2 are changed, it is described that the coal seam B below the second base point 2 is displaced.
Furthermore, a rope wheel shaft 31 is rotatably arranged on the shell 21, a clockwork spring 32 is arranged on the rope wheel shaft 31, the rope wheel 30 is fixed on the rope wheel shaft 31, a cavity is formed in the rope wheel shaft 31 and matched with the clockwork spring 32, a handle 33 is arranged at one end of the rope wheel shaft 31, which extends out of the shell 21, a locking wheel 34 is fixedly arranged at the other end of the rope wheel shaft 31, the gear transmission unit 40 comprises a toothed sleeve 41, and the toothed sleeve 41 is provided with internal teeth matched with the locking wheel 34. In specific implementation, one end of the steel wire rope 10 is fixed at the first base point 1 or the second base point 2, and the other end is fixedly wound on the rope pulley 30. When the rope sheave is installed, the rope sheave shaft 31 and the rope sheave 30 are drawn out through the handle 33 to separate the locking wheel 34 from the toothed sleeve 41, then the steel wire rope 10 is wound on the rope sheave 30, meanwhile, the power is accumulated on the spring 32, the spring 32 can pre-tighten the steel wire rope 10 to reduce the measurement error, and finally, the rope sheave shaft 31 and the rope sheave 30 are pushed inwards through the handle 33 to enable the locking wheel 34 to enter the toothed sleeve 41 and be meshed with the toothed sleeve 41, so that the connection between the rope sheave 30 and the gear transmission unit 40 is realized. The other end of the steel wire rope 10 penetrates through the coal seam B and the rock stratum A and is tightly connected with the first base point 1 or the second base point 2 through a drilling process.
Furthermore, a first gear 42 is fixedly connected to one end of the gear sleeve 41 away from the rope pulley 30, a second gear 43 is engaged with the first gear 42, a third gear 44 is synchronously and rotatably arranged on one side of the second gear 43, a fourth gear 45 is engaged with the third gear 44, and the fourth gear 45 is connected with the digital display unit 50. A second gear 43, a third gear 44 and a fourth gear 45 are arranged between the first gear 42 and the digital display unit 50, and the transmission ratio among the gears can be controlled by setting the gear ratio among the gears, so that the numerical value displayed by the digital display unit 50 is consistent with the displacement value of the coal bed B settlement.
Further, the digital display unit 50 comprises a first wheel axle arranged between two side plates of the shell 21, a first digital display wheel 51, a first step gear 52, a first follow-up gear 54, a second digital display wheel 55, a second step gear 56, a second follow-up gear 58 and a third digital display wheel 59 are sequentially sleeved on the first wheel axle from the adjacent gear transmission unit 40 to the end far away from the gear transmission unit 40, wherein the first digital display wheel 51 and the first step gear 52 rotate synchronously, the first follow-up gear 54, the second digital display wheel 55 and the second step gear 56 rotate synchronously, the second follow-up gear 58 and the third digital display wheel 59 rotate synchronously, the second wheel axle is arranged in parallel beside the first wheel axle, a first linkage gear 53 and a second linkage gear 57 are sleeved on the second wheel axle, a half tooth part of the first linkage gear 53 is meshed with the first step gear 52, a full tooth part of the first linkage gear 53 is meshed with the first follow-up gear 54, a half tooth portion of the second linkage gear 57 is meshed with the second stepping gear 56, and a full tooth portion of the second linkage gear 57 is meshed with the second follower gear 58. Specifically, only one tooth is arranged on the first stepping gear 52 and the second stepping gear 56, the first stepping gear 52 and the second stepping gear 56 rotate for one circle to drive the first linkage gear 53 and the second linkage gear 57 to rotate for one grid, so that the second digital display wheel 55 and the third digital display wheel 59 are driven to rotate for one grid, and the second digital display wheel 55 and the third digital display wheel 59 rotate for ten grids for one circle. That is, when the first digital display wheel 51 rotates once, the first stepping gear 52 rotates once along with the first stepping gear, and drives the first linkage gear 53, the first follower gear 54 and the second digital display wheel 55 to rotate one grid; when the first digital display wheel 51 rotates ten times, the second digital display wheel 55 rotates ten times, that is, one time, and the second stepping gear 56 immediately rotates one time and drives the second linkage gear 57, the second follower gear 58 and the third digital display wheel 59 to rotate one time. The digital display wheels, the stepping gears, the linkage gears and the follow-up gears are arranged to realize linkage among the 3 digital display wheels, so that numerical values displayed by the digital display unit can reach three digits, and the measuring range of the mining passive digital display roof separation layer optical fiber sensing device can reach 0-500 mm.
Furthermore, a fifth gear 46 is meshed with one side of the first gear 42, which is far away from the second gear 43, a sleeve 61 is fixedly arranged on a middle side plate of the shell 21, a lead screw 62 is connected to the sleeve 61 in an internal thread manner, a rotating wheel 63 is fixedly arranged at one end of the lead screw 62, the rotating wheel 63 is meshed with the fifth gear 46, a spring piece 64 is further arranged on the shell 21 in an overhanging manner, the other end of the lead screw 62 is attached to the spring piece 64, and the spring piece 64 is connected with the remote monitoring unit 70 through an optical fiber. Through setting up lead screw 62 and spring leaf 64, when displacement appears in coal seam B, first gear 42 drives fifth gear 46 and rotates, fifth gear 46 drives and rotates wheel 63 and rotates, it drives lead screw 62 and pushes away spring leaf 64 and make spring leaf 64 take place deformation to rotate in sleeve 61 spiral rotation and along axial motion top to rotate wheel 63, transmit spring leaf 64 deformation to remote monitoring unit 70 through optic fibre, change spring leaf 64 deformation into coal seam B displacement volume and show through remote monitoring unit 70, realize the remote monitoring of coal seam B displacement, and optic fibre transmission does not need the power equally, effectively guarantee tunnel safety.
The use principle of the mining passive digital display roof separation layer optical fiber sensing device in the embodiment is as follows: the shell 21 of the detection module 20 is installed at the top of a roadway below a coal seam B, the rope wheel shaft 31 and the rope wheel 30 are pulled out through the handle 33 to separate the locking wheel 34 from the toothed sleeve 41, then one end of the steel wire rope 10 is wound on the rope wheel 30, meanwhile, force is accumulated on the spring 32, the spring 32 can pre-tighten the steel wire rope 10 to reduce measurement errors, and finally, the rope wheel shaft 31 and the rope wheel 30 are pushed inwards through the handle 33 to enable the locking wheel 34 to enter the toothed sleeve 41 and to be meshed with the toothed sleeve 41, so that the connection between the rope wheel 30 and the gear transmission unit 40 is realized. And the other end of the steel wire rope 10 penetrates through the coal seam B and the rock stratum A through a drilling process to be fixedly connected with the first base point 1. The connection of the second base point 2 and the wire rope 10 corresponding to the detection module 20 is the same as described above. When the coal seam B between the first base point 1 and the second base point 2 is settled, the detection module 20 corresponding to the second base point 2 is unchanged, the detection module 20 corresponding to the first base point 1 is changed, the steel wire rope 10 in the device is stretched to drive the rope pulley 30 to rotate, the displacement information is transmitted to the digital display unit 50 through the locking wheel 34, the gear sleeve 41, the first gear 42, the second gear 43, the third gear 44 and the fourth gear 45, the numerical value is displayed through the first digital display wheel 51, the second digital display wheel 55 and the third digital display wheel 59, meanwhile, the spring sheet 64 in the deformation unit 60 is deformed, the deformation amount is transmitted to the remote monitoring unit 70 through the optical fiber, and the displacement numerical value is displayed on the display terminal of the remote monitoring unit 70, so that the on-site and remote real-time monitoring of the coal seam B settlement is realized. When the coal seam B below the second base point 2 is settled, the detection modules 20 corresponding to the first base point 1 and the second base point 2 are changed and are far away from the same.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. A mining passive digital display roof separation layer optical fiber sensing device is characterized in that: including setting up first basic point (1) in lithosphere (A) and setting up second basic point (2) in coal seam (B), first basic point (1) and second basic point (2) are connected through rope sheave (30) of detection module (20) rather than below respectively through wire rope (10), rope sheave (30) are connected with digital display unit (50) through gear drive unit (40), gear drive unit (40) still are connected with deformation unit (60), deformation unit (60) are connected with remote monitoring unit (70) through optic fibre.
2. The mining passive digital display roof separation layer optical fiber sensing device of claim 1, characterized in that: the detection module (20) comprises a shell (21), and the shell (21) is arranged below the coal seam (B) and is relatively fixed with the coal seam (B).
3. The mining passive digital display roof separation layer optical fiber sensing device of claim 2, characterized in that: the rope wheel shaft (31) is rotatably arranged on the shell (21), the clockwork spring (32) is arranged on the rope wheel shaft (31), the rope wheel (30) is fixed on the rope wheel shaft (31), a cavity is formed in the rope wheel (31) and is matched with the clockwork spring (32), one end of the steel wire rope (10) is fixed at the first base point (1) or the second base point (2), and the other end of the steel wire rope is fixedly wound on the rope wheel (30).
4. The mining passive digital display roof separation layer optical fiber sensing device of claim 3, characterized in that: one end of the rope wheel shaft (31) extends out of the shell (21) and is provided with a handle (33), the other end of the rope wheel shaft is fixedly provided with a locking wheel (34), the gear transmission unit (40) comprises a gear sleeve (41), and the gear sleeve (41) is provided with internal teeth matched with the locking wheel (34).
5. The mining passive digital display roof separation layer optical fiber sensing device of claim 4, characterized in that: one end, far away from rope sheave (30), of tooth cover (41) is fixedly connected with first gear (42), and meshing has second gear (43) on first gear (42), and second gear (43) one side synchronous rotation is provided with third gear (44), and meshing has fourth gear (45) on third gear (44), and fourth gear (45) are connected with digital display unit (50).
6. The mining passive digital display roof separation layer optical fiber sensing device of claim 5, characterized in that: the digital display unit (50) comprises a first digital display wheel (51) connected with a fourth gear (45) in a synchronous rotating mode, a first stepping gear (52) is arranged on one side of the first digital display wheel (51) in a synchronous rotating mode, the first stepping gear (52) is meshed with a half-tooth portion of a first linkage gear (53), a full-tooth portion of the first linkage gear (53) is meshed with a first follow-up gear (54), a second digital display wheel (55) and a second stepping gear (56) are arranged on the side edge of the first follow-up gear (54) in a synchronous rotating mode, the second stepping gear (56) is meshed with a half-tooth portion of a second linkage gear (57), a full-tooth portion of the second linkage gear (57) is meshed with a second follow-up gear (58), a third digital display wheel (59) is arranged on the side edge of the second follow-up gear (58) in a synchronous rotating mode, and the first digital display wheel (51), the first stepping gear (52), the first follow-up gear (54) and the second digital display wheel (52), The second digital display wheel (55), the second stepping gear (56), the second follow-up gear (58) and the third digital display wheel (59) are coaxially arranged, and the first linkage gear (53) and the second linkage gear (57) are coaxially arranged.
7. The mining passive digital display roof separation layer optical fiber sensing device of claim 5, characterized in that: one side of the first gear (42) far away from the second gear (43) is meshed with a fifth gear (46), a sleeve (61) is fixedly arranged on a middle side plate of the shell (21), a screw rod (62) is connected to the inner thread of the sleeve (61), one end of the screw rod (62) is fixedly provided with a rotating wheel (63), the rotating wheel (63) is meshed with the fifth gear (46), a spring piece (64) is arranged on the shell (21) in a hanging mode, the other end of the screw rod (62) is attached to the spring piece (64), and the spring piece (64) is connected with a remote monitoring unit (70) through an optical fiber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210708275.5A CN114964031A (en) | 2022-06-22 | 2022-06-22 | Mining passive digital display roof separation layer optical fiber sensing device |
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| CN202210708275.5A CN114964031A (en) | 2022-06-22 | 2022-06-22 | Mining passive digital display roof separation layer optical fiber sensing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117053842A (en) * | 2023-07-20 | 2023-11-14 | 齐鲁工业大学(山东省科学院) | Passive numerical display optical fiber top plate displacement sensor |
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2022
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117053842A (en) * | 2023-07-20 | 2023-11-14 | 齐鲁工业大学(山东省科学院) | Passive numerical display optical fiber top plate displacement sensor |
| CN117053842B (en) * | 2023-07-20 | 2024-01-30 | 齐鲁工业大学(山东省科学院) | Passive numerical display optical fiber top plate displacement sensor |
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