CN117053842A - Passive numerical display optical fiber top plate displacement sensor - Google Patents
Passive numerical display optical fiber top plate displacement sensor Download PDFInfo
- Publication number
- CN117053842A CN117053842A CN202310894841.0A CN202310894841A CN117053842A CN 117053842 A CN117053842 A CN 117053842A CN 202310894841 A CN202310894841 A CN 202310894841A CN 117053842 A CN117053842 A CN 117053842A
- Authority
- CN
- China
- Prior art keywords
- code disc
- bit code
- hundred
- cantilever beam
- disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 21
- 239000013307 optical fiber Substances 0.000 title claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 11
- 230000002146 bilateral effect Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 9
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 238000005065 mining Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241000668854 Howardia biclavis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- 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
- G01D5/32—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 with attenuation or whole or partial obturation of beams of light
- G01D5/34—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 with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—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 with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/3473—Circular or rotary encoders
-
- 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
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- 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
- G01D5/32—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 with attenuation or whole or partial obturation of beams of light
- G01D5/34—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 with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—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 with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Optical Transform (AREA)
Abstract
The application relates to the technical field of coal mine roof safety monitoring, in particular to a passive numerical display optical fiber roof displacement sensor, which comprises a numerical display assembly, a reel, a coupler, an optical fiber-cantilever beam assembly and a main shaft, wherein the optical fiber roof displacement sensor comprises a plurality of optical fiber sensors; the numerical display assembly is connected with the reel through a main shaft, and the main shaft is connected with a screw rod of the optical fiber-cantilever beam assembly through a coupler; the numerical display assembly comprises a single-bit code disc, a ten-bit code disc and a hundred-bit code disc; the inner sides of the ten-bit code disc and the hundred-bit code disc are respectively provided with inner teeth, a first driving gear which is rigidly connected with the main shaft is arranged in the ten-bit code disc, the first driving gear is meshed with the first inert gear, and the first inert gear is meshed with the inner teeth of the ten-bit code disc; the inside of the hundred-bit code disk is provided with a second driving gear which is rigidly connected with the main shaft, the second driving gear is meshed with a second inert gear, and the second inert gear is meshed with the inner teeth of the hundred-bit code disk.
Description
Technical Field
The application relates to the technical field of coal mine roof safety monitoring, in particular to a passive numerical display optical fiber roof displacement sensor.
Background
More than 70% of the predicted total reserves of coal in China have more than 1000 meters of burial depth, and along with the increase of energy demand and the expansion of coal mining scale, china has entered into the deep mining stage of coal mine. With the increase of mining depth, rock burst strength is increased, roadway deformation is aggravated, and roof safety monitoring technology becomes a necessary means for guaranteeing coal mine safety production.
The optical fiber monitoring technology is intrinsically safe, does not need to supply power, and has unique advantages for dynamic monitoring of underground coal mine roof. Meanwhile, the underground coal mine has higher requirements on the localized display of the sensor. Therefore, the passive localization display difficulty of the fiber optic roof displacement sensor must be addressed. Li Hongguo et al invented a mining wide-range fiber bragg grating passive visual roof separation layer sensor (application number: 201910048688.3), and solved the difficulty that the passive fiber bragg grating sensor cannot display in real time on site by utilizing a gear mechanism and a visual pointer mechanism. However, due to the influence of the angle of the field of view, the accuracy of reading the indication of the pointer sensor is poor, and potential safety hazards are easily caused. Therefore Li Rang et al invent a mechanical digital disk roof separation layer sensor (application number: 202210439365.9), and utilize a mechanical counter to realize passive numerical display of the separation layer sensor, thereby greatly improving the reading accuracy of the sensor. However, the mechanical counter is complex in structure, and multiple groups of gears are needed for speed ratio matching in each number of digital discs, so that the whole size of the sensor is overlarge. The underground transportation and installation efficiency of the sensor is low, and the economical efficiency is insufficient. In addition, after the sensor is installed on the roadway roof, the sensor is easy to collide and damage when the material equipment is transported in the roadway due to overlarge size of the sensor, so that the survival rate of the sensor is reduced. Therefore, there is a need to develop a small-sized passive numerical display optical fiber roof displacement sensor to meet the requirements of roof safety monitoring in coal mining.
Disclosure of Invention
In order to solve the problem that the existing optical fiber top plate displacement sensor is large in size, the application provides the optical fiber top plate displacement sensor with passive numerical display, and the gear set is integrated in the code wheel, so that the structure of the sensor is simplified, and the size of the sensor is effectively reduced.
The technical scheme of the application is as follows:
the optical fiber top plate displacement sensor comprises a numerical value display assembly, a reel, a coupler, an optical fiber-cantilever beam assembly and a main shaft;
the numerical display assembly is connected with the reel through a main shaft, and the main shaft is connected with a screw rod of the optical fiber-cantilever beam assembly through a coupler;
the numerical display assembly comprises a number code disc, a ten-bit code disc and a hundred-bit code disc; the unit code disc is rigidly connected with the main shaft, internal teeth are respectively arranged on the inner sides of the ten-position code disc and the hundred-position code disc, a first driving gear rigidly connected with the main shaft is arranged in the ten-position code disc, the first driving gear is meshed with the first inert gear, and the first inert gear is meshed with the internal teeth of the ten-position code disc; a second driving gear which is rigidly connected with the main shaft is arranged in the hundred-bit code disc, the second driving gear is meshed with a second inert gear, and the second inert gear is meshed with the inner teeth of the hundred-bit code disc;
the number arrangement direction of the ten-bit code disc and the hundred-bit code disc is opposite to that of the unit code disc.
Because the bit code disk is rigidly connected with the main shaft, the rotation direction of the bit code disk is the same as that of the main shaft. The ten-bit code wheel and the hundred-bit code wheel form a transmission relation with the main shaft through the gear set, so that the rotation directions of the ten-bit code wheel and the hundred-bit code wheel are opposite to the main shaft. Thus, the numbers of the ten-bit code wheel and the hundred-bit code wheel are arranged in reverse of the ones-bit code wheel.
On the basis of the scheme, further, the unit code disc, the ten-bit code disc and the hundred-bit code disc are respectively positioned between two mounting plates, three lifting lugs are arranged on the circumference of a single mounting plate at equal intervals, one bolt hole is formed in each lifting lug of each mounting plate on two sides, two bolt holes are formed in each lifting lug of the middle mounting plate, and two adjacent mounting plates are connected through a bolt column;
on the basis of the scheme, further, ten-bit code plates and hundred-bit code plates are symmetrically provided with a plurality of sliding columns on the left side and the right side, sliding grooves are symmetrically formed in the two sides of the mounting plate in the middle of the ten-bit code plates and the hundred-bit code plates, sliding grooves are formed in the inner sides of the mounting plate on the two sides of the ten-bit code plates and the hundred-bit code plates, and the sliding columns move in the adjacent sliding grooves to play a role in supporting the ten-bit code plates and the hundred-bit code plates and enabling the ten-bit code plates and the hundred-bit code plates to rotate freely.
On the basis of the scheme, further, optic fibre-cantilever beam subassembly includes lead screw, cantilever beam and fixed plate, the rotation of main shaft passes through the shaft coupling and gives the lead screw, the lead screw passes through bearing assembly and fixed plate and links to each other, be equipped with the screw on the lead screw, the rotation of taking the lead screw drives the removal of screw, the lower part of fixed plate is fixed with the cantilever beam, the upper portion and the screw contact of cantilever beam, and when the screw moved on the lead screw, the screw promoted the cantilever beam, makes the cantilever beam produce the deformation, and the fiber grating wavelength of arranging on the cantilever beam surface produces the change, realizes roof displacement sensor's remote monitoring.
On the basis of the scheme, further, a guide pin is fixed on the fixing plate above the screw rod, and passes through the through hole on the screw nut, so that the screw nut can only move axially and cannot rotate.
On the basis of the scheme, further, the lower part of the fixing plate is fixed with a cantilever beam fixing block, a cantilever Liang Yakuai is fixed on the cantilever beam fixing block, and the lower end of the cantilever beam is fixed between the cantilever beam fixing block and the cantilever beam pressing block.
On the basis of the scheme, further, the rotation speed ratio of the single-bit code disc, the ten-bit code disc and the hundred-bit code disc is 100:10:1.
The beneficial technical effects of the application are as follows:
according to the application, three code plates are connected through one main shaft, and the internal teeth are added to the code plates, so that the transmission gear is arranged in the code plates, the structure is simplified, the number of gears is reduced, the volume of the whole sensor is reduced, the problem of high transportation cost of the sensor caused by overlarge volume is solved, and collision and damage are avoided, so that the sensor is worthy of popularization and application.
Drawings
The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application.
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic illustration of the structure of a fiber-cantilever assembly of the present application;
FIG. 3 is a schematic diagram of a code wheel portion of the present application;
FIG. 4 is a schematic view of a mounting plate portion of the present application;
FIG. 5 is a rear view of FIG. 1;
fig. 6 is a side view of fig. 1.
In the figure: 1. the numerical display assembly 2, a reel 3, a coupler 4, an optical fiber-cantilever beam assembly 5 and a main shaft; 6. a personal code disc, 7, a ten-bit code disc, 8 and a hundred-bit code disc; 9. internal tooth, 10, first driving gear, 11, first idler gear, 12, second driving gear, 13, second idler gear, 14, lifting lug, 15, bolt column, 16, slide column, 17, slide groove, 18, fixed plate, 19, screw rod, 20, screw nut, 21, cantilever beam, 22, guide pin, 23, cantilever beam fixed block, 24, cantilever Liang Yakuai, 25, first mounting plate, 26, second mounting plate, 27, third mounting plate, 28, fourth mounting plate.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be noted that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art, and the disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein.
Examples
Referring to fig. 1, 5 and 6, a passive numerical display optical fiber top plate displacement sensor comprises a numerical display assembly 1, a reel 2, a coupler 3, an optical fiber-cantilever beam assembly 4 and a main shaft 5; the numerical display assembly 1 and the reel 2 are connected through a main shaft 5, and the main shaft 5 is connected with a screw rod 19 of the optical fiber-cantilever beam assembly 4 through a coupler 3.
Referring to fig. 3 and 4, the numerical display assembly 1 includes a number code wheel 6, a ten-bit code wheel 7 and a hundred-bit code wheel 8; the unit code disc 6 is positioned between the first mounting plate 25 and the second mounting plate 26 to provide support for the unit code disc 6, the ten-position code disc 7 is positioned between the second mounting plate 26 and the third mounting plate 27 to provide support for the ten-position code disc 7, and the hundred-position code disc 8 is positioned between the third mounting plate 27 and the fourth mounting plate 28 to provide support for the hundred-position code disc 8.
The circumferences of the first mounting plate 25 and the fourth mounting plate 28 are respectively provided with three lifting lugs 14 at equal intervals, a single lifting lug 14 is provided with a bolt hole, the circumferences of the second mounting plate 26 and the third mounting plate 27 are respectively provided with three lifting lugs 14 at equal intervals, the single lifting lug 14 is provided with two bolt holes, and two adjacent mounting plates are connected through a bolt column 15.
The unit code disc 6 is rigidly connected with the main shaft 5, internal teeth 9 are respectively arranged on the inner sides of the ten-position code disc 7 and the hundred-position code disc 8, a first driving gear 10 rigidly connected with the main shaft 5 is arranged inside the ten-position code disc 7, the first driving gear 10 is meshed with a first inert gear 11, and the first inert gear 11 is meshed with the internal teeth 9 of the ten-position code disc 7; a second driving gear 12 rigidly connected with the main shaft 5 is arranged inside the hundred-bit code wheel 8, the second driving gear 12 is meshed with a second inert gear 13, and the second inert gear 13 is meshed with the internal teeth 9 of the hundred-bit code wheel 8; since the bit code wheel 6 is rigidly connected to the spindle 5, the individual bit code wheels 6 rotate in the same direction as the spindle 5. The ten-bit code wheel 7 and the hundred-bit code wheel 8 are in driving relationship with the spindle 5 by a gear set, so that the ten-bit code wheel 7 and the hundred-bit code wheel 8 rotate in opposite directions to the spindle 5. Thus, the numerals of the ten-bit code wheel 7 and the hundred-bit code wheel 8 are arranged in reverse of the unit code wheel 6. The gear ratios of the unit code disk 6, the ten-bit code disk 7 and the hundred-bit code disk 8 are 100:10:1 through reasonable arrangement of the internal teeth 9, the first driving gear 10, the first idler gear 11, the second driving gear 12 and the second idler gear 13.
Referring to fig. 3, a plurality of sliding columns 16 are symmetrically arranged on the left side and the right side of the ten-bit code wheel 7 and the hundred-bit code wheel 8, sliding grooves 17 are symmetrically arranged on the two sides of a third mounting plate 27 in the middle of the ten-bit code wheel 7 and the hundred-bit code wheel 8, sliding grooves 17 are arranged on the inner sides of a second mounting plate 26 and a fourth mounting plate 28 on the two sides of the ten-bit code wheel 7 and the hundred-bit code wheel 8, and the sliding columns 16 move in the adjacent sliding grooves 17 to play a role of supporting the ten-bit code wheel 7 and the hundred-bit code wheel 8 and enabling the ten-bit code wheel 7 and the hundred-bit code wheel 8 to rotate freely.
Referring to fig. 2, the optical fiber-cantilever beam assembly 4 includes a fixing plate 18, the screw rod 19, a nut 20, a cantilever beam 21 and the fixing plate 18, the rotation of the spindle 5 is transmitted to the screw rod 19 through the coupling 3, the screw rod 19 is connected with the fixing plate 18 through a bearing assembly, the nut 20 is arranged on the screw rod 19, the rotation of the screw rod 19 drives the movement of the nut 20, the cantilever beam 21 is fixed at the lower part of the fixing plate 18, the upper part of the cantilever beam 21 is contacted with the nut 20, when the nut 20 moves on the screw rod 19, the nut 20 pushes the cantilever beam 21 to deform, and the wavelength of the optical fiber grating arranged on the surface of the cantilever beam 21 changes, so as to realize remote monitoring of the top plate displacement sensor. Above the screw rod 19, a guide pin 22 is fixed on the fixing plate 18, and the guide pin 22 passes through a through hole on the screw 20, so that the screw 20 can only move axially and cannot rotate. The lower part of the fixing plate 18 is fixed with a cantilever beam fixing block 23, a cantilever Liang Yakuai 24 is fixed on the cantilever beam fixing block 23, and the lower end of the cantilever beam 21 is fixed between the cantilever beam fixing block 23 and the cantilever Liang Yakuai.
The working principle of the application is as follows: when the wire rope drives the reel 2 to rotate, the reel 2 is rigidly connected with the spindle 5, the rotation is transmitted to the spindle 5, and the spindle 5 drives the numerical display assembly 1, so that passive localization numerical display of the sensor is realized. In addition, the rotation of the main shaft 5 is transmitted to the screw rod 19 through the coupling 3, and the screw rod 19 drives the screw 20 thereon to move along the axis when rotating. The guide pin 22 penetrates into the through hole of the nut 20, ensuring that the nut 20 can only move axially and cannot rotate. The nut 20 pushes the cantilever beam 21 to deform the cantilever beam 21, and the wavelength of the fiber grating arranged on the surface of the cantilever beam 21 is changed, so that the remote monitoring of the top plate displacement sensor is realized.
The present application is not limited to the above-mentioned embodiments, and any changes or modifications within the scope of the present application will be apparent to those skilled in the art. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. A passive numerical display optical fiber roof displacement sensor is characterized in that: the device comprises a numerical display assembly (1), a reel (2), a coupler (3), an optical fiber-cantilever beam assembly (4) and a main shaft (5);
the numerical display assembly (1) is connected with the reel (2) through a main shaft (5), and the main shaft (5) is connected with a screw rod (19) of the optical fiber-cantilever beam assembly (4) through a coupler (3);
the numerical display assembly (1) comprises a number code disc (6), a ten-bit code disc (7) and a hundred-bit code disc (8); the unit code disc (6) is rigidly connected with the main shaft (5), internal teeth (9) are respectively arranged on the inner sides of the ten-position code disc (7) and the hundred-position code disc (8), a first driving gear (10) rigidly connected with the main shaft (5) is arranged inside the ten-position code disc (7), the first driving gear (10) is meshed with a first inert gear (11), and the first inert gear (11) is meshed with the internal teeth (9) of the ten-position code disc (7); a second driving gear (12) which is rigidly connected with the main shaft (5) is arranged inside the hundred-bit code disc (8), the second driving gear (12) is meshed with a second inert gear (13), and the second inert gear (13) is meshed with the internal teeth (9) of the hundred-bit code disc (8);
the number arrangement direction of the ten-bit code disc (7) and the hundred-bit code disc (8) is opposite to that of the individual bit code disc (6).
2. The passive numerically displayed fiber optic roof displacement sensor of claim 1, wherein: the unit code disc (6) is positioned between the first mounting plate (25) and the second mounting plate (26), the ten-bit code disc (7) is positioned between the second mounting plate (26) and the third mounting plate (27), and the hundred-bit code disc (8) is positioned between the third mounting plate (27) and the fourth mounting plate (28);
the circumference of first mounting panel (25) and fourth mounting panel (28) are equidistant respectively and are equipped with three lug (14), are equipped with a bolt hole on single lug (14), and the circumference of second mounting panel (26) and third mounting panel (27) are equidistant respectively and are equipped with three lug (14), are equipped with two bolt holes on single lug (14), link to each other through bolt post (15) between two adjacent mounting panels.
3. The passive numerically displayed fiber optic roof displacement sensor of claim 1, wherein: the utility model discloses a ten-bit coded disc (7) and hundred-bit coded disc (8) left and right sides symmetry is provided with a plurality of slide columns (16), the bilateral symmetry of third mounting panel (27) in the middle of ten-bit coded disc (7) and hundred-bit coded disc (8) is equipped with spout (17), be equipped with spout (17) on the medial surface of second mounting panel (26) and fourth mounting panel (28) of ten-bit coded disc (7) and hundred-bit coded disc (8) both sides, slide column (16) remove in adjacent spout (17).
4. The passive numerically displayed fiber optic roof displacement sensor of claim 1, wherein: the optical fiber-cantilever beam assembly (4) comprises a screw rod (19), a screw nut (20), a cantilever beam (21) and a fixing plate (18), wherein rotation of the main shaft (5) is transmitted to the screw rod (19) through a coupler (3), the screw rod (19) is connected with the fixing plate (18) through a bearing assembly, the screw nut (20) is arranged on the screw rod (19), the screw nut (20) is driven to move by rotation of the screw rod (19), the cantilever beam (21) is fixed at the lower part of the fixing plate (18), and the upper part of the cantilever beam (21) is contacted with the screw nut (20).
5. The passive numerically displayed fiber optic roof displacement sensor of claim 4, wherein: above the screw rod (19), a guide pin (22) is fixed on the fixed plate (18), and the guide pin (22) passes through a through hole on the screw nut (20) to ensure that the screw nut (20) can only move along the axial direction and cannot rotate.
6. The passive numerically displayed fiber optic roof displacement sensor of claim 4, wherein: the lower part of fixed plate (18) is fixed with cantilever beam fixed block (23), be fixed with cantilever Liang Yakuai (24) on cantilever beam fixed block (23), the lower extreme of cantilever beam (21) is fixed between cantilever beam fixed block (23) and cantilever Liang Yakuai (24).
7. The passive numerically displayed fiber optic roof displacement sensor of claim 1, wherein: the rotation speed ratio of the unit code disc (6), the ten-bit code disc (7) and the hundred-bit code disc (8) is 100:10:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310894841.0A CN117053842B (en) | 2023-07-20 | 2023-07-20 | Passive numerical display optical fiber top plate displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310894841.0A CN117053842B (en) | 2023-07-20 | 2023-07-20 | Passive numerical display optical fiber top plate displacement sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117053842A true CN117053842A (en) | 2023-11-14 |
| CN117053842B CN117053842B (en) | 2024-01-30 |
Family
ID=88656295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310894841.0A Active CN117053842B (en) | 2023-07-20 | 2023-07-20 | Passive numerical display optical fiber top plate displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117053842B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2387521Y (en) * | 1999-06-18 | 2000-07-12 | 广州市莲耦光纤高新技术有限公司 | Fibre-optical displacement transducer |
| CN1793796A (en) * | 2005-12-20 | 2006-06-28 | 南京林业大学 | Carry optical fiber liquid lerel sensor |
| CN201836307U (en) * | 2010-10-29 | 2011-05-18 | 天津市津达执行器有限公司 | Planetary reducer for high-torque electric actuating mechanism |
| CN109855556A (en) * | 2019-01-18 | 2019-06-07 | 山东道宽智能科技有限公司 | A kind of passive visual roof delamination sensor of mining wide range fiber grating |
| US20200116967A1 (en) * | 2018-10-15 | 2020-04-16 | Futong Group (Jiashan) Communication Technology Co., Ltd. | Method for continuously producing optical fiber cable and system thereof |
| CN114812423A (en) * | 2022-04-25 | 2022-07-29 | 山东光安智能科技有限公司 | Mechanical digital disc type roof separation layer sensor |
| CN114964031A (en) * | 2022-06-22 | 2022-08-30 | 济南江丰电子科技有限公司 | Mining passive digital display roof separation layer optical fiber sensing device |
-
2023
- 2023-07-20 CN CN202310894841.0A patent/CN117053842B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2387521Y (en) * | 1999-06-18 | 2000-07-12 | 广州市莲耦光纤高新技术有限公司 | Fibre-optical displacement transducer |
| CN1793796A (en) * | 2005-12-20 | 2006-06-28 | 南京林业大学 | Carry optical fiber liquid lerel sensor |
| CN201836307U (en) * | 2010-10-29 | 2011-05-18 | 天津市津达执行器有限公司 | Planetary reducer for high-torque electric actuating mechanism |
| US20200116967A1 (en) * | 2018-10-15 | 2020-04-16 | Futong Group (Jiashan) Communication Technology Co., Ltd. | Method for continuously producing optical fiber cable and system thereof |
| CN109855556A (en) * | 2019-01-18 | 2019-06-07 | 山东道宽智能科技有限公司 | A kind of passive visual roof delamination sensor of mining wide range fiber grating |
| CN114812423A (en) * | 2022-04-25 | 2022-07-29 | 山东光安智能科技有限公司 | Mechanical digital disc type roof separation layer sensor |
| CN114964031A (en) * | 2022-06-22 | 2022-08-30 | 济南江丰电子科技有限公司 | Mining passive digital display roof separation layer optical fiber sensing device |
Non-Patent Citations (1)
| Title |
|---|
| 马茜;李丽君;姚佳;张艳;丁小哲;高春亭;郭晓丽;曹茂永;: "一种大量程光纤布拉格光栅位移传感器", 光通信研究, no. 04, pages 49 - 51 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117053842B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109855556B (en) | Mining wide-range fiber bragg grating passive visible roof separation layer sensor | |
| CN204025550U (en) | Robot RV retarder | |
| CN202431843U (en) | Primary bevel gear rectangular axis input planetary gearbox | |
| CN117053842B (en) | Passive numerical display optical fiber top plate displacement sensor | |
| CN101922540A (en) | Linear motion actuating mechanism and device utilizing same | |
| CN110561439A (en) | Robot action obstacle-avoiding device | |
| CN102434155A (en) | Coal cutter and rocker arm transmission system thereof | |
| CN101963211A (en) | Special planetary speed reducer for continuous casting | |
| CN101968100A (en) | Special planetary reduction gear for roller table | |
| CN114812423A (en) | Mechanical digital disc type roof separation layer sensor | |
| CN201672929U (en) | Gear transmission mechanism of photomagnetic mixed multiturn rotary encoder | |
| CN202220603U (en) | Power split type dead axle transmission gear train for traction box of coal m ining machine | |
| CN101118193A (en) | Direct-sensing type torque sensor | |
| CN102385396B (en) | High-power high-accuracy double worm wheel two speed gearbox for solar photo-thermal power generation giant bracket | |
| CN108011575A (en) | A kind of photovoltaic tracking system transmission device | |
| CN203284021U (en) | High-power mine hydraulic anti-explosion elevator | |
| CN205677324U (en) | Interdigitated electrode structure carries car device Traverse Displacement Unit | |
| CN201402149Y (en) | Simple driving device for rotary encoder | |
| CN107587855A (en) | Tractor in a kind of oil well horizontal well tube | |
| CN113071870B (en) | Conveying equipment for engineering machinery manufacturing production | |
| CN101966550B (en) | Driving device of horizontal automatic steel bar bender | |
| CN206361095U (en) | Double-wheel milling milling wheel decelerator | |
| CN216361122U (en) | Bidirectional transmission irreversible gear self-locking system | |
| CN219932889U (en) | Intermittent counter structure | |
| CN221167538U (en) | Warning device for safety engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |