Measuring device for fiber bragg grating separation layer

Abstract

The utility model discloses a fiber bragg grating separation layer measuring device, and relates to the technical field of rock separation layer monitoring, the fiber bragg grating separation layer measuring device comprises a device housing, a vertical measuring cylinder, an anchoring head 1, an anchoring head 2, a retracting and releasing mechanism and an optical fiber assembly, vertical side plates are symmetrically arranged and fixedly connected on a mechanism bottom plate, a retracting and releasing wheel is rotatably connected between the vertical side plates, the winding and unwinding wheel is sleeved and fixedly connected with a circular partition plate, a connecting through groove is formed in the circular partition plate, one end of the first steel wire rope is connected with one end of the second steel wire rope through the connecting through groove, the first steel wire rope is wound on the winding and unwinding wheel, and the second steel wire rope is reversely wound on the winding and unwinding wheel. The steel wire rope I can be automatically driven to be wound and unwound, the automation degree of the device is improved, an anchoring head at one end of the steel wire rope can be conveniently wound and deployed, a motor switch arranged on the driving motor can conveniently control starting and stopping of the driving motor, and workers can conveniently use the device.

Description

Technical Field

[0001] This utility model relates to the field of rock strata delamination monitoring technology, and specifically to a fiber optic grating delamination measuring device. Background Technology

[0002] With the advancement of science and technology, the mining industry has also developed rapidly, and the mining depth of coal mines is increasing daily. However, roof delamination is a major safety hazard in coal mine roof collapse accidents. In order to promptly grasp the dynamic information of roof delamination, it is necessary to effectively monitor the roof strata. By using a roof delamination instrument to monitor the movement of the roof strata, it is possible to effectively prevent roof collapse accidents and ensure safe production in coal mines.

[0003] Chinese Patent CN103528530B discloses a mining fiber optic grating roof delamination monitoring device and method. The device includes a vertical measuring cylinder and a housing. The housing contains symmetrically arranged fixed pulleys, steel belt pulleys, and equal-strength cantilever beams. A steel wire rope passes through the steel belt pulley and the fixed pulley and exits through a steel wire rope lead-out hole at the top of the vertical measuring cylinder. An anchor head is connected to the end of the steel wire rope. When deploying the anchor head, a shallow measuring point and a deep measuring point are arranged inside the borehole. The shallow measuring point is set at the same height as the top of the roof anchor rod, and the deep measuring point is set in the stable rock layer at the top of the borehole. An installation rod is used to push one anchor head to the deep measuring point at the top of the borehole and the other anchor head to the shallow measuring point. At this time, the steel wire rope coiled on the steel belt pulley will be pulled open. The housing is gently pulled to ensure that the anchor claws on the anchor head are anchored to the rock layer.

[0004] The shortcomings of the above-mentioned existing technical solutions are: when deploying the anchor head, it is necessary to use a support rod to send the anchor head to the detection point, and at the same time, it is necessary to pull the steel wire rope to ensure that the anchor head can be deployed smoothly. The automation level of the device is low, and it is not convenient to carry out deployment work in some relatively narrow mine spaces. Utility Model Content

[0005] The purpose of this invention is to provide a fiber optic grating delamination measurement device to solve the technical problem that the existing devices have a low degree of automation and are not convenient to deploy and carry out work in some relatively small mine spaces.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A fiber grating delamination measurement device, comprising:

[0008] The take-up and release mechanism includes a base plate, vertical side plates symmetrically arranged and fixedly connected on the base plate, take-up and release wheels rotatably connected between the vertical side plates, a circular partition plate sleeved and fixedly connected in the middle of the take-up and release wheels, a connecting groove opened on one end face of the circular partition plate, and steel wire rope one and steel wire rope two wound on the take-up and release wheels, and steel wire rope one and steel wire rope two are connected to each other through the connecting groove.

[0009] The device has an outer shell, with a vertically installed measuring cylinder fixedly connected to the upper end of the outer shell. An installation cavity is opened inside the outer shell, and a winding and unwinding mechanism is symmetrically arranged inside the installation cavity. An anchor head one and an anchor head two are respectively installed on the end of the steel wire rope one of the winding and unwinding mechanism.

[0010] As a further embodiment of this utility model: two winding and unwinding mechanisms are provided. An anchor head 1 is fixedly connected to the end of the wire rope 1 of one winding and unwinding mechanism, and an anchor head 2 is fixedly connected to the end of the wire rope 1 of the other winding and unwinding mechanism.

[0011] As a further embodiment of this utility model: the vertical measuring cylinder is connected to the installation cavity, and the steel wire ropes of the two winding and unwinding mechanisms pass through the vertical measuring cylinder and are connected to the anchor head 1 and anchor head 2 located above the vertical measuring cylinder.

[0012] As a further embodiment of this utility model: Wire rope one is wound clockwise on the take-up and release wheel, and wire rope two is wound counterclockwise on the take-up and release wheel.

[0013] As a further embodiment of this utility model: an inner cavity cover plate is fixedly connected to the opening of the mounting cavity of the device housing.

[0014] As a further embodiment of this utility model: rotating shafts are fixedly connected to both ends of the take-up and take-down wheels, and mounting bearings are embedded and fixedly connected through the vertical side plate.

[0015] As a further embodiment of this utility model: the outer ring of the mounting bearing is fixedly connected to the vertical side plate, and the rotating shaft is sleeved and fixedly connected to the inner ring of the mounting bearing.

[0016] As a further embodiment of this utility model: a drive motor is fixedly connected to the inner cavity cover plate, and a drive shaft is fixedly connected to the drive end of the drive motor, with the drive shaft and the rotating shaft being coaxially and fixedly connected.

[0017] As a further embodiment of this utility model: a mounting side plate is fixedly connected to the side end face of the drive motor, and a motor switch is fixedly connected to the mounting side plate, and the motor switch is electrically connected to the drive motor.

[0018] As a further embodiment of this utility model: optical fiber assemblies are provided on both sides of the inner cavity, and a tension spring is provided between the take-up and take-down mechanism and the optical fiber assemblies.

[0019] The beneficial effects of this utility model are:

[0020] 1. In use, the present invention features symmetrically arranged and fixedly connected vertical side plates on the base plate of the mechanism. A take-up and release wheel is rotatably connected between the vertical side plates. A circular partition is fitted and fixedly connected to the take-up and release wheel. A connecting groove is provided on the circular partition. One end of the steel wire rope and the second steel wire rope are connected to each other through the connecting groove. The first steel wire rope is wound around the take-up and release wheel, and the second steel wire rope is wound around the take-up and release wheel in the opposite direction. The take-up and release wheel is driven to rotate by the drive motor, which can automatically drive the take-up and release of the first steel wire rope, improve the automation level of the device, and facilitate the retraction and deployment of the anchor head at the end of the first steel wire rope.

[0021] 2. The drive motor of this utility model is fixedly connected to a mounting side plate, and a motor switch for controlling the drive motor is fixedly connected to the mounting side plate. The motor switch, which is universally installed on the drive motor, facilitates the control of the start and stop of the drive motor and is convenient for operators to use. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall forward structure of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the retraction mechanism of this utility model.

[0026] In the diagram: 1. Device housing; 2. Vertical measuring cylinder; 3. Anchor head one; 4. Anchor head two; 5. Inner cavity cover plate; 6. Installation inner cavity; 7. Retracting and extending mechanism; 71. Mechanism base plate; 72. Vertical side plate; 73. Drive shaft; 74. Drive motor; 75. Installation side plate; 76. Motor switch; 77. Retracting and extending wheel; 78. Circular partition plate; 79. Connecting through groove; 710. Steel wire rope one; 711. Steel wire rope two; 8. Tension spring; 9. Fiber optic assembly. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-3As shown, a fiber optic grating delamination measuring device includes a device housing 1 and a take-up and put-down mechanism 7. The take-up and put-down mechanism 7 includes a mechanism base plate 71, vertical side plates 72 are symmetrically arranged and fixedly connected on the mechanism base plate 71, and take-up and put-down wheels 77 are rotatably connected between the vertical side plates 72. A circular partition plate 78 is sleeved and fixedly connected in the middle of the take-up and put-down wheel 77. A connecting groove 79 is opened on one end face of the circular partition plate 78. A steel wire rope 1 710 and a steel wire rope 2 711 are wound on the take-up and put-down wheel 77. The steel wire rope 1 710 and the steel wire rope 2 711 are connected to each other through the connecting groove 79. A vertically arranged vertical measuring cylinder 2 is fixedly connected to the upper end of the device housing 1. An installation cavity 6 is opened inside the device housing 1. The take-up and put-down mechanism 7 is symmetrically arranged in the installation cavity 6. An anchor head 1 3 and an anchor head 2 4 are respectively provided on the end of the steel wire rope 1 710 of the take-up and put-down mechanism 7.

[0029] In some specific embodiments, there are two take-up and release mechanisms 7. An anchor head 3 is fixedly connected to the end of the wire rope 710 of one take-up and release mechanism 7, and an anchor head 4 is fixedly connected to the end of the wire rope 710 of the other take-up and release mechanism 7.

[0030] The vertical measuring cylinder 2 is connected to the installation cavity 6. The steel wire ropes 710 of the two retraction mechanisms 7 pass through the vertical measuring cylinder 2 and are connected to the anchor head 3 and the anchor head 4 located above the vertical measuring cylinder 2.

[0031] In some specific embodiments, wire rope 710 is wound clockwise on take-up and release spool 77, and wire rope 711 is wound counterclockwise on take-up and release spool 77.

[0032] In some specific embodiments, an inner cavity cover plate 5 is fixedly connected to the opening of the mounting cavity 6 of the device housing 1.

[0033] The take-up and take-off wheels 77 are fixedly connected to the two ends of a rotating shaft. A mounting bearing is embedded and fixedly connected through the vertical side plate 72. The outer ring of the mounting bearing is fixedly connected to the vertical side plate 72. The rotating shaft is sleeved and fixedly connected to the inner ring of the mounting bearing. A drive motor 74 is fixedly connected to the inner cavity cover plate 5. A drive shaft 73 is fixedly connected to the drive end of the drive motor 74. The drive shaft 73 is coaxially fixedly connected to the rotating shaft. A mounting side plate 75 is fixedly connected to the side end face of the drive motor 74. A motor switch 76 is fixedly connected to the mounting side plate 75. The motor switch 76 is electrically connected to the drive motor 74.

[0034] Optical fiber assemblies 9 are installed on both sides of the inner cavity 6, and tension springs 8 are installed between the take-up and take-down mechanism 7 and the optical fiber assemblies 9.

[0035] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0036] In use, vertical side plates 72 are symmetrically arranged and fixedly connected to the base plate 71 of the mechanism. Retracting and extending wheels 77 are rotatably connected between the vertical side plates 72. A circular partition plate 78 is fitted and fixedly connected to the retracting and extending wheel 77. A connecting groove 79 is provided on the circular partition plate 78. One end of wire rope 710 and wire rope 711 are connected to each other via the connecting groove 79. Wire rope 710 is wound around the retracting and extending wheel 77, and wire rope 711 is wound in the opposite direction around the retracting and extending wheel 77. The mechanism is driven... The motor 74 drives the take-up and release wheel 77 to rotate, which can automatically drive the take-up and release of the wire rope 710, improve the automation level of the device, and facilitate the retraction and deployment of the end anchor head of the wire rope 710. The drive motor 74 is fixedly connected to the upper side plate 75, and the motor switch 76 for controlling the drive motor 74 is fixedly connected to the mounting side plate 75. The motor switch 76, which is universally set on the drive motor 74, facilitates the control of the start and stop of the drive motor 74 and is convenient for operators to use.

[0037] The foregoing has described several embodiments of this utility model in detail, but these embodiments are not limited thereto and should not be considered as limiting the scope of this utility model. All equivalent changes and improvements made within the scope of the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A device for measuring the delamination of a fiber grating, characterized in that, The utility model relates to a kind of optical fiber cable winding and unwinding device, including: The retracting mechanism (7) includes mechanism base plate (71), and vertical side plate (72) is symmetrically arranged and fixedly connected on mechanism base plate (71), and retracting wheel (77) is rotatably connected between vertical side plate (72), and circular partition (78) is sleeved and fixedly connected in the middle of retracting wheel (77), and connecting through slot (79) is formed on one side end surface of circular partition (78), and steel wire rope one (710) and steel wire rope two (711) are wound on retracting wheel (77), and steel wire rope one (710) and steel wire rope two (711) are connected by penetrating connecting through slot (79); Device shell (1), vertical measuring cylinder (2) is fixedly connected on the upper end of device shell (1) and is vertically arranged, and installation inner cavity (6) is formed in device shell (1), and retracting mechanism (7) is symmetrically arranged in installation inner cavity (6), and anchor head one (3) and anchor head two (4) are respectively arranged on the end of steel wire rope one (710) of retracting mechanism (7).

2. The device for measuring the delamination of fiber grating according to claim 1, wherein, Retracting mechanism (7) is provided with two, and anchor head one (3) is fixedly connected on the end of steel wire rope one (710) of one retracting mechanism (7), and anchor head two (4) is fixedly connected on the end of steel wire rope one (710) of another retracting mechanism (7).

3. The device for measuring the delamination of fiber grating according to claim 1, wherein, Vertical measuring cylinder (2) is connected between installation inner cavity (6), and the steel wire rope one (710) of two retracting mechanisms (7) is connected with anchor head one (3) and anchor head two (4) by penetrating vertical measuring cylinder (2).

4. The device for measuring the delamination of fiber grating according to claim 1, wherein, Steel wire rope one (710) is arranged clockwise on retracting wheel (77), and steel wire rope two (711) is arranged counterclockwise on retracting wheel (77).

5. The device for measuring the delamination of fiber grating according to claim 1, wherein, Inner cavity cover plate (5) is fixedly connected on the opening of installation inner cavity (6) of device shell (1).

6. The device for measuring the delamination of fiber grating according to claim 1, wherein, Rotating shaft is fixedly connected on both ends of retracting wheel (77), and installation bearing is embedded and fixedly connected on vertical side plate (72) by penetrating.

7. The device for measuring the delamination of fiber grating according to claim 6, characterized in that, The outer ring of installation bearing is fixedly connected on vertical side plate (72), and rotating shaft is sleeved and fixedly connected on the inner ring of installation bearing.

8. The device for measuring the delamination of fiber grating according to claim 5, wherein, Drive motor (74) is fixedly connected on inner cavity cover plate (5), drive shaft (73) is fixedly connected on the drive end of drive motor (74), and drive shaft (73) is coaxially fixedly connected with rotating shaft.

9. The device for measuring the delamination of fiber grating according to claim 8, characterized in that, Installation side plate (75) is fixedly connected on the side end surface of drive motor (74), motor switch (76) is fixedly connected on installation side plate (75), and motor switch (76) is electrically connected with drive motor (74).

10. The device for measuring the delamination of fiber grating according to claim 1, wherein, Optical fiber assembly (9) is arranged on both sides in installation inner cavity (6), and tension spring (8) is arranged between retracting mechanism (7) and optical fiber assembly (9).

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