CN217765307U - Stress monitoring device based on fiber grating sensor - Google Patents
Stress monitoring device based on fiber grating sensor Download PDFInfo
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- CN217765307U CN217765307U CN202221663825.8U CN202221663825U CN217765307U CN 217765307 U CN217765307 U CN 217765307U CN 202221663825 U CN202221663825 U CN 202221663825U CN 217765307 U CN217765307 U CN 217765307U
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Abstract
The utility model discloses a stress monitoring device based on fiber grating sensor, including base and a plurality of fiber grating sensor body, fixed mounting has a plurality of enhancement branches on the base, every fiber grating sensor body fixed mounting is a plurality of on the enhancement branch that corresponds respectively fixed mounting has the roof between the enhancement branch, fixed mounting has a plurality of supporting spring on the roof, and is a plurality of fixed mounting has the backup pad between the supporting spring upper end, roof lower extreme fixed mounting has a plurality of installation pieces. Has the advantages that: can reduce falling rocks and earth when the cave sinks, reduce the impact force that the roof was applyed, can make the bracing piece consolidate the support to strengthening branch automatically simultaneously, improve the device's stability, the staff of being convenient for is withdrawn from the device safely, reduces personnel injured's possibility, and also can play the retaining action to the fiber grating sensor body, reduces the impaired possibility of instrument.
Description
Technical Field
The utility model relates to a stress monitoring technology field especially relates to a stress monitoring device based on fiber grating sensor.
Background
Coal mines are reasonable spaces excavated by humans when excavating geological formations rich in coal, and generally include roadways, wells, excavation faces, and the like. Because the mine hole is in the underground, so be full of the instability, consequently the inside concrete condition that all is equipped with the fiber grating sensor in order to monitor each position in mine hole, but the fiber grating sensor only can detect the stress variation of the inside supporting component in mine hole, and the supporting component who is used for installing the fiber grating sensor can't protect fiber grating sensor and staff when the mine hole takes place to collapse, easily cause instrument damage and personnel to be injured, consequently need to design a stress monitoring devices based on fiber grating sensor urgently.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem existing in the prior art, and the stress monitoring device based on fiber grating sensor who provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a stress monitoring device based on fiber grating sensor, includes base and a plurality of fiber grating sensor body, fixed mounting has a plurality of enhancement branches on the base, every fiber grating sensor body fixed mounting is respectively on the enhancement branch that corresponds, and is a plurality of fixed mounting has the roof between the enhancement branch, fixed mounting has a plurality of supporting spring on the roof, and is a plurality of fixed mounting has the backup pad between the supporting spring upper end, roof lower extreme fixed mounting has a plurality of installation pieces, and two arcs have all been seted up to the lower lateral wall of every installation piece, every all rotate in the arc and be connected with the bull stick, every equal fixed mounting has the connecting rod on the bull stick, and the equal fixed mounting of every connecting rod lower extreme has the bracing piece, every the bracing piece cooperatees with the enhancement branch that corresponds respectively, install a plurality of control mechanism on the roof, and every control mechanism cooperatees with two bull sticks that correspond respectively.
In foretell stress monitoring device based on fiber grating sensor, the lower extreme fixed mounting of backup pad has the protective frame, fixed mounting has a plurality of fixture blocks on the lateral wall of roof, a plurality of draw-in grooves have been seted up on the inner wall of protective frame, and every draw-in groove respectively with the fixture block joint that corresponds.
In foretell stress monitoring device based on fiber grating sensor, control mechanism comprises shifting chute, carriage release lever, dead lever, two gears and two racks, the shifting chute is seted up between roof and installation piece, carriage release lever sliding connection is on the shifting chute, dead lever fixed mounting is between carriage release lever and backup pad, two the gear is fixed mounting respectively on two bull sticks, two the rack is fixed mounting respectively in the left and right sides of carriage release lever, and two racks mesh with two gears respectively.
In foretell a stress monitoring devices based on fiber grating sensor, backup pad lower extreme fixed mounting has a plurality of location branch, seted up a plurality of constant head tanks on the roof, and every constant head tank cooperatees with the location branch that corresponds respectively.
In the above-mentioned stress monitoring device based on fiber grating sensor, the lower extreme fixed mounting of bracing piece has the adapter sleeve, and is equipped with the spread groove with strengthening branch matched with on the adapter sleeve.
Compared with the prior art, the utility model discloses the advantage lies in:
1: through backup pad and a plurality of supporting spring's cooperation, can reduce the impact force that falling rocks and earth applyed to the roof when the cave appears collapsing, avoid roof and lower extreme supporting component to appear not hard up or the problem of losing, keep the device's stability, the staff of being convenient for is withdrawn from the device safely, reduces personnel injured's possibility, also can play the retaining action to the fiber grating sensor body simultaneously, reduces the impaired possibility of instrument.
2: through bracing piece and control mechanism's cooperation, can be when the backup pad is moved down by falling stone and earth effect, play the effect of consolidating the support to strengthening branch, further improve the device's stability, and consolidate and support the operation and need not the manual work and go on, degree of automation is high.
3: through the cooperation of constant head tank and location branch, can injectd the biggest distance that moves down of backup pad, avoid the bracing piece rotation range too big to lead to strengthening branch or bracing piece self the problem of buckling to appear.
4: through the design of protective frame, can avoid falling the stone and earth that fall in the backup pad and get into and lead to the backup pad to move down the obstructed problem between backup pad and the roof.
To sum up, the utility model discloses can reduce the impact force that falling rocks and earth applyed the roof when the cave appears collapsing, can make the bracing piece consolidate to strengthening branch automatically simultaneously and support, improve the device's stability, the staff of being convenient for is withdrawn from the device safely, reduces personnel injured's possibility, and also can play the maintenance to the fiber grating sensor body, reduces the impaired possibility of instrument.
Drawings
Fig. 1 is a schematic structural diagram of a stress monitoring device based on a fiber grating sensor according to the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1.
In the figure: the optical fiber grating sensor comprises a base 1, a reinforcing supporting rod 2, a top plate 3, a fiber grating sensor body 4, a supporting spring 5, a supporting plate 6, a protective frame 7, a clamping groove 8, a clamping block 9, an installation block 10, a rotating rod 11, a connecting rod 12, a supporting rod 13, a connecting sleeve 14, a connecting groove 15, a gear 16, an arc-shaped groove 17, a moving groove 18, a moving rod 19, a rack 20, a fixing rod 21, a positioning supporting rod 22 and a positioning groove 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1-2, a stress monitoring device based on fiber grating sensors includes a base 1 and a plurality of fiber grating sensor bodies 4, a plurality of reinforcing struts 2 are fixedly mounted on the base 1, and each fiber grating sensor body 4 is respectively and fixedly mounted on the corresponding reinforcing strut 2.
The above is noteworthy:
1. the fiber grating sensor body 4 is used for monitoring the condition in the mine hole, and when the mine hole appeared collapsing, the fiber grating sensor body 4 can give the alarm with the signal of telecommunication transmission, and the alarm sends out the police dispatch newspaper afterwards for the suggestion staff in time withdraws from, and the alarm can be fixed mounting on the lateral wall of one of them reinforcing support rod 2.
2. Fixed mounting has roof 3 between a plurality of enhancement branches 2, fixed mounting has a plurality of supporting spring 5 on roof 3, fixed mounting has backup pad 6 between a plurality of supporting spring 5 upper ends, when the ore deposit hole appears collapsing, the rock fall and earth etc. at ore deposit hole top can fall in backup pad 6, the elastic action that a plurality of supporting spring 5 were overcome in backup pad 6 atress effect at this moment moves down, this process can cushion the impact force that stone and earth applied roof 3, avoid roof 3 and lower extreme supporting component to appear not hard up or the problem of losing.
3. Lower extreme fixed mounting of backup pad 6 has protection frame 7, fixed mounting has a plurality of fixture blocks 9 on the lateral wall of roof 3, a plurality of draw-in grooves 8 have been seted up on protection frame 7's the inner wall, and every draw-in groove 8 respectively with the fixture block 9 joint that corresponds, design through protection frame 7, can avoid falling rocks and earth that fall on backup pad 6 to get into and lead to backup pad 6 to move down the obstructed problem of buffering between backup pad 6 and the roof 3, fixture block 9 and draw-in groove 8's design, can cushion the consumption to the effort that stone and earth that fall applyed backup pad 6.
4. 3 lower extreme fixed mounting of roof has a plurality of installation pieces 10, and two arc wall 17 have all been seted up to the lower lateral wall of every installation piece 10, all rotate in every arc wall 17 and be connected with bull stick 11, equal fixed mounting has connecting rod 12 on every bull stick 11, and the equal fixed mounting of every connecting rod 12 lower extreme has bracing piece 13, every bracing piece 13 cooperatees with corresponding reinforcing strut 2 respectively, when the cave sinks appearing, make a plurality of two liang of corresponding bracing pieces 13 rotate relatively respectively and open, can utilize bracing piece 13 to support reinforcing strut 2 afterwards, improve the device's stability, it withdraws from safely to be convenient for the staff from the device, reduce personnel's injured probably, also can play the retaining action to fiber grating sensor body 4 simultaneously, reduce the impaired possibility of instrument.
5. The connecting sleeve 14 is fixedly arranged at the lower end of the supporting rod 13, the connecting sleeve 14 is provided with a connecting groove 15 matched with the reinforcing supporting rod 2, and the connecting stability between the supporting rod 13 and the reinforcing supporting rod 2 can be improved through the matching of the connecting sleeve 14 and the connecting groove 15.
6. A plurality of control mechanisms are installed on the top plate 3, each control mechanism is respectively matched with the corresponding two rotating rods 11, and each control mechanism is composed of a moving groove 18, a moving rod 19, a fixed rod 21, two gears 16 and two racks 20.
7. The movable groove 18 is opened between the top plate 3 and the mounting block 10, the movable rod 19 is slidably connected on the movable groove 18, the fixing rod 21 is fixedly installed between the movable rod 19 and the support plate 6, the two gears 16 are respectively and fixedly installed on the two rotating rods 11, the two racks 20 are respectively and fixedly installed on the left side and the right side of the movable rod 19, the two racks 20 are respectively meshed with the two gears 16, when the mine cave collapses, the support plate 6 can move downwards through the fixing rod 21 to drive the movable rod 19 to move downwards, then the two racks 20 on the movable rod 19 can simultaneously drive the two gears 16 to rotate in opposite directions, so that the corresponding two support rods 13 are automatically unfolded, the supporting effect on the reinforcing support rod 2 is improved, manual operation is not needed, and the automation degree is higher.
8. 6 lower extreme fixed mounting of backup pad has a plurality of location branch 22, has seted up a plurality of constant head tanks 23 on the roof 3, and every constant head tank 23 cooperatees with the location branch 22 that corresponds respectively, and through constant head tank 23 and location branch 22's cooperation, can prescribe a limit to the biggest displacement of backup pad 6, avoids bracing piece 13 rotation range too big to lead to strengthening 2 or bracing piece 13 self the problem of buckling to appear.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a stress monitoring device based on fiber grating sensor, includes base (1) and a plurality of fiber grating sensor body (4), its characterized in that, fixed mounting has a plurality of enhancement branch (2) on base (1), every fiber grating sensor body (4) fixed mounting is on the enhancement branch (2) that correspond respectively, and is a plurality of fixed mounting has roof (3) between enhancement branch (2), fixed mounting has a plurality of supporting spring (5) on roof (3), and is a plurality of fixed mounting has backup pad (6) between supporting spring (5) upper end, roof (3) lower extreme fixed mounting has a plurality of installation piece (10), and the lower lateral wall of every installation piece (10) has all seted up two arc wall (17), every all rotate in arc wall (17) and be connected with bull stick (11), every equal fixed mounting has connecting rod (12) on bull stick (11), and the equal fixed mounting of every connecting rod (12) lower extreme has bracing piece (13), every bracing piece (13) cooperate with corresponding enhancement branch (2) respectively, install on roof (3), and correspond a plurality of control mechanism (11) respectively and two control mechanism (11).
2. The fiber bragg grating sensor-based stress monitoring device according to claim 1, wherein a protection frame (7) is fixedly mounted at the lower end of the supporting plate (6), a plurality of clamping blocks (9) are fixedly mounted on the side wall of the top plate (3), a plurality of clamping grooves (8) are formed in the inner wall of the protection frame (7), and each clamping groove (8) is clamped with the corresponding clamping block (9) respectively.
3. The FBG sensor-based stress monitoring device according to claim 1, wherein the control mechanism is composed of a moving slot (18), a moving rod (19), a fixed rod (21), two gears (16) and two racks (20), the moving slot (18) is arranged between the top plate (3) and the mounting block (10), the moving rod (19) is slidably connected to the moving slot (18), the fixed rod (21) is fixedly mounted between the moving rod (19) and the support plate (6), the two gears (16) are respectively fixedly mounted on two rotating rods (11), the two racks (20) are respectively fixedly mounted on the left side and the right side of the moving rod (19), and the two racks (20) are respectively engaged with the two gears (16).
4. The fiber grating sensor-based stress monitoring device according to claim 1, wherein a plurality of positioning support rods (22) are fixedly mounted at the lower end of the supporting plate (6), a plurality of positioning grooves (23) are formed in the top plate (3), and each positioning groove (23) is respectively matched with the corresponding positioning support rod (22).
5. The fiber grating sensor-based stress monitoring device as claimed in claim 1, wherein a connecting sleeve (14) is fixedly installed at the lower end of the supporting rod (13), and the connecting sleeve (14) is provided with a connecting groove (15) matched with the reinforcing supporting rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221663825.8U CN217765307U (en) | 2022-06-30 | 2022-06-30 | Stress monitoring device based on fiber grating sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221663825.8U CN217765307U (en) | 2022-06-30 | 2022-06-30 | Stress monitoring device based on fiber grating sensor |
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| CN217765307U true CN217765307U (en) | 2022-11-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117647340A (en) * | 2024-01-30 | 2024-03-05 | 成都工业职业技术学院 | Mining roof pressure detection device based on optical fiber sensor |
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2022
- 2022-06-30 CN CN202221663825.8U patent/CN217765307U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117647340A (en) * | 2024-01-30 | 2024-03-05 | 成都工业职业技术学院 | Mining roof pressure detection device based on optical fiber sensor |
| CN117647340B (en) * | 2024-01-30 | 2024-03-29 | 成都工业职业技术学院 | Mining roof pressure detection device based on optical fiber sensor |
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