A device for monitoring deformation of supporting beams in mining subsidence areas

Abstract

The invention discloses a device for monitoring the deformation of a supporting beam in a mining subsidence area, and relates to the technical field of deformation monitoring. Its technical highlights include a beam clamping part, and a retractable connecting part can be slidably connected to the beam clamping part, and one end of the retractable connecting part is connected to a monitoring component, and a connecting seat is installed in the monitoring component, and a semicircular groove is provided on the inner side of the connecting seat, and a beam deformation monitoring mechanism is also installed in the monitoring component; the beam deformation monitoring mechanism includes a tilt sensing seat rotatably installed in the connecting seat, and extension arms are fixed at both ends of the tilt sensing seat, and a connecting rod is commonly arranged between the two extension arms, and a rotating rod is rotatably installed on one side of the connecting seat. The technical effect is that by setting the tilt monitoring mechanism, a single angle sensor design can be used to realize timely monitoring and judgment of different deformations of the beam, so as to make targeted response plans in time.

Description

Technical Field

[0001] The invention relates to the technical field of deformation monitoring, and in particular to a device for monitoring deformation of a supporting beam in a mining subsidence area. Background Art

[0002] In mining subsidence areas, the stability of support beams plays a key role in ensuring the safety of mining operations and the stability of the surrounding environment. Accurately monitoring the deformation of support beams, including lateral support deformation and tilted support deformation, can timely detect potential risks and provide a basis for taking effective reinforcement or repair measures.

[0003] However, existing monitoring schemes have significant defects. To achieve simultaneous monitoring of lateral support deformation and tilt support deformation, it is often necessary to deploy multiple groups of different types of sensors. For example, displacement sensors are used to monitor lateral deformation, while inclination sensors are used to monitor changes in tilt angles. Although this multi-sensor combination monitoring method can obtain the required data, it greatly increases the complexity and cost of the monitoring system. Each set of sensors involves a series of expenses such as procurement, installation, commissioning, and post-maintenance, and the equipment cost, labor cost, and time cost have all increased significantly. This not only brings an economic burden to the monitoring work, but in some large-scale mining subsidence areas, the layout and management of numerous sensors also increases the technical difficulty and the probability of failure, which is not conducive to the efficient and stable monitoring of support beam deformation. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a device for monitoring deformation of supporting crossbeams in mining subsidence areas, which can simultaneously monitor lateral support deformation and inclined support deformation through a single sensor.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for monitoring deformation of a supporting beam in a mining subsidence area, comprising a beam clamping portion, wherein a retractable connecting portion is slidably connected to the beam clamping portion, one end of the retractable connecting portion is connected to a monitoring component, a connecting seat is installed in the monitoring component, a semicircular groove is provided on the inner side of the connecting seat, and a beam deformation monitoring mechanism is also installed in the monitoring component;

[0006] The crossbeam deformation monitoring mechanism includes a tilt sensing seat rotatably installed in the connecting seat, extension arms are fixed at both ends of the tilt sensing seat, a connecting rod is commonly arranged between the two extension arms, a rotating rod 1 is rotatably installed on one side of the connecting seat, a tilted rope collecting disc is installed at one end of the rotating rod 1, a gear is installed at the other end of the rotating rod 1, an arc-shaped tooth surface is provided on one side of the outer wall of the tilt sensing seat and at a position corresponding to the gear, an inclined connecting rope is connected to the inner side of the inclined rope collecting disc, and the cooperation of the gear and the arc-shaped tooth surface can realize the amplification of the tilt deformation signal, so that it can be used as a basis for distinguishing the two deformations;

[0007] A transverse supporting deformation pull rope is connected to the middle of the outer wall of the connecting rod;

[0008] A tension reversing seat is fixed on one side of the connecting seat and above the inclined rope collecting disc, and a reversing wire hole is opened at one end of the tension reversing seat;

[0009] An angle sensor is also installed in the monitoring component, and a traction part is symmetrically installed on the rotating end of the angle sensor.

[0010] Preferably, the beam clamping part includes a transverse connecting screw, and both sides of the outer wall of the transverse connecting screw are slidably connected with beam claws, the outer wall of the transverse connecting screw and the outer sides of the two beam claws are threadedly connected with a mounting bolt, the top end of one side of the beam claw is threadedly installed with a fixing screw, and a square groove is provided on one side of the beam claw and corresponding to the fixing screw for clamping the two sides of the supporting beam.

[0011] Preferably, the telescopic connection part includes a sliding sleeve which can be slidably arranged in the middle of the outer wall of the transverse connecting screw rod, a main connecting arm is installed at the lower end of the sliding sleeve, a secondary connecting arm is slidably arranged on the inner side of the main connecting arm, a plurality of adjustment screw holes are provided on one side of the secondary connecting arm and the main connecting arm, a fixing screw two is threadedly inserted at the lower part of one side of the main connecting arm, and a feedback joint is fixed at one end of the secondary connecting arm.

[0012] Preferably, a deformation displacement groove used in conjunction with a connecting rod is opened on one side of the feedback joint, and an anti-slip coating is provided at the contact point between the connecting rod and the deformation displacement groove. The middle part of the connecting rod coincides with the rotation axis of the tilt sensing seat, thereby ensuring that no tension is generated on the lateral support deformation rope during the tilt deformation process.

[0013] Preferably, the monitoring component includes a fixing seat connected to the feedback joint, a protective cover is installed at the fixing seat, and a docking port is provided at the upper end of the protective cover corresponding to the feedback joint.

[0014] Preferably, the traction part includes a rotating seat installed on the rotating end of the angle sensor, a connecting pull rod is installed on one side of the outer wall of the rotating seat, and the rotating seat and the angle sensor are connected through a one-way bearing. The axis of the rotating end of the angle sensor and the center of the reversing wire hole are on the same vertical plane, which also determines that during the monitoring process, the absolute value of the maximum deflection angle is ninety degrees.

[0015] Preferably, the connecting rod is rotatably connected to the extension arm, the transverse supporting deformation rope is inserted from above the reversing wire hole, and the lower end of the transverse supporting deformation rope is connected to one end of the connecting rod located below.

[0016] Preferably, the inclined connecting rope is inserted from under the reversing wire hole, and one end of the inclined connecting rope is connected to one end of the connecting rod located above. The two connecting rods are arranged in a symmetrical direction so that there is an opening angle between the lateral support deformation rope and the inclined connecting rope, thereby avoiding interference between the lateral support deformation rope and the inclined connecting rope.

[0017] Compared with the prior art, the present invention provides a device for monitoring the deformation of supporting beams in mining subsidence areas, which has the following beneficial effects: by setting up a tilt monitoring mechanism, a single angle sensor design can be used to monitor and judge the different deformations of the beams in a timely manner, so as to make targeted response plans in a timely manner, solving the increased technical difficulty and probability of failure in the arrangement and management of numerous sensors, and realizing efficient and stable monitoring of the deformation of supporting beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a partial structural schematic diagram of the present invention;

[0020] Figure 3 It is a partial schematic diagram of the retractable connection part in the present invention;

[0021] Figure 4 It is a schematic diagram of the disassembled structure of the fixing base and the protective cover in the present invention;

[0022] Figure 5 It is a schematic diagram of the structure in the fixing seat of the present invention;

[0023] Figure 6 For the present invention Figure 5 The enlarged schematic diagram at A in the middle;

[0024] Figure 7 It is a structural schematic diagram of the connecting seat in the present invention;

[0025] Figure 8 It is a structural schematic diagram of the angle sensor in the present invention;

[0026] Fig. 9 It is a schematic diagram of the cross-sectional structure of the connecting socket of the present invention.

[0027] In the figure: 1, beam clamping part; 11, transverse connecting screw; 12, beam clamping claw; 13, fixing screw 1; 14, mounting bolt 1;

[0028] 2. Telescopic connection part; 21. Sliding sleeve; 22. Mounting bolt 2; 23. Main connecting arm; 24. Auxiliary connecting arm; 25. Adjusting screw hole; 26. Fixing screw 2; 27. Feedback connector;

[0029] 3. Fixed seat; 31. Protective cover; 32. Docking port;

[0030] 4. Connecting seat; 41. Semicircular groove; 42. Tension reversing seat; 43. Reversing wire hole;

[0031] 5. Tilt sensing seat; 51. Extension arm; 52. Connecting rod; 53. Tilt connecting rope; 54. Turning rod 1; 55. Tilt rope collecting disc; 56. Gear; 57. Arc tooth surface;

[0032] 6. Lateral support deformation pull rope; 61. Deformation displacement slide groove;

[0033] 7. Angle sensor;

[0034] 8. Rotating seat; 81. Connecting rod. DETAILED DESCRIPTION

[0035] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0036] See also Figure 1-9 , the present invention provides a technical solution for a support beam deformation monitoring device for mining subsidence areas:

[0037] Embodiment 1, a support beam deformation monitoring device for mining subsidence area, comprising a beam clamping part 1, a telescopic connecting part 2 can be slidably connected to the beam clamping part 1, one end of the telescopic connecting part 2 is connected to a monitoring component, a connecting seat 4 is installed in the monitoring component, a semicircular groove 41 is opened on the inner side of the connecting seat 4, and a beam deformation monitoring mechanism is also installed in the monitoring component;

[0038] The beam deformation monitoring mechanism includes a tilt sensing seat 5 rotatably installed in the connecting seat 4, and both ends of the tilt sensing seat 5 are fixed with extension arms 51, and a connecting rod 52 is commonly arranged between the two extension arms 51. A rotating rod 54 is rotatably installed on one side of the connecting seat 4, and a tilt rope collecting disc 55 is installed on one end of the rotating rod 54, and a gear 56 is installed on the other end of the rotating rod 54. An arc-shaped tooth surface 57 is provided on one side of the outer wall of the tilt sensing seat 5 and corresponds to the gear 56. The inner side of the tilt rope collecting disc 55 is connected with an inclined connecting pull rope 53. The cooperation of the gear 56 and the arc-shaped tooth surface 57 can realize the amplification of the tilt deformation signal, so that it can be used as a basis for distinguishing the two deformations. It should be noted that this design is mainly used for monitoring the controllable deformation of the supporting beam in the early stage, and for preventing further deformation in advance. Therefore, the deformation state will not be too obvious. In the initial state, the gear 56 corresponds to the middle part of the arc-shaped tooth surface 57, and the gear 56 is meshed with the arc-shaped tooth surface 57.

[0039] A transverse supporting deformation pull rope 6 is connected to the middle of the outer wall of the connecting rod 52;

[0040] A tension reversing seat 42 is fixed on one side of the connecting seat 4 and above the inclined rope collecting drum 55, and a reversing wire hole 43 is opened at one end of the tension reversing seat 42;

[0041] An angle sensor 7 is also installed in the monitoring component, and a traction part is symmetrically installed on the rotating end of the angle sensor 7;

[0042] The crossbeam clamping portion 1 includes a transverse connecting screw 11, and both sides of the outer wall of the transverse connecting screw 11 can be slidably connected with crossbeam claws 12. The outer wall of the transverse connecting screw 11 and the outer sides of the two crossbeam claws 12 are threadedly connected with mounting bolts 14, and the top of one side of the crossbeam claw 12 is threadedly installed with a fixing screw 13. A square groove is provided on one side of the crossbeam claw 12 and corresponding to the fixing screw 13, which is used to clamp the two sides of the supporting crossbeam. The telescopic connecting portion 2 includes a sliding sleeve 21 that can be slidably arranged in the middle of the outer wall of the transverse connecting screw 11, and the transverse connecting screw 11 and both sides of the sliding sleeve 21 are threadedly provided with mounting bolts 22 for fixing the sliding sleeve 21. A main connecting arm 23 is installed at the lower end of the sliding sleeve 21, and a secondary connecting arm 24 is slidably arranged on the inner side of the main connecting arm 23. A plurality of adjusting screw holes 25 are provided on one side of the secondary connecting arm 24 and the main connecting arm 23. A fixing screw 26 is threadedly inserted at the lower side of one side of the main connecting arm 23, and a feedback connector 27 is fixed at one end of the secondary connecting arm 24. The monitoring component includes a fixing seat 3 connected to the feedback connector 27, and a protective cover 31 is installed at the fixing seat 3. A docking port 32 is provided at the upper end of the protective cover 31 and at a position corresponding to the feedback connector 27. It should be noted that the fixing seat 3 also requires some electronic components and signal transmission lines commonly used in this field, which will not be described in detail in this application.

[0043] In the second embodiment, a deformation displacement groove 61 used in conjunction with the connecting rod 52 is provided on one side of the feedback joint 27. The contact points between the connecting rod 52 and the deformation displacement groove 61 are provided with an anti-slip coating. The middle part of the connecting rod 52 coincides with the rotation axis of the tilt sensing seat 5, thereby ensuring that during the tilt deformation process, no tension is generated on the lateral supporting deformation rope 6. The anti-slip coating is used to ensure that the angle sensor 7 can be accurately transmitted when the deformation slides. At the same time, the deformation displacement groove 61 also provides a certain movable range for the tilt deformation.

[0044] Embodiment 3, the traction part includes a rotating seat 8 installed at the rotating end of the angle sensor 7, a connecting pull rod 81 is installed on one side of the outer wall of the rotating seat 8, the rotating seat 8 and the angle sensor 7 are connected at the connection through a one-way bearing, the axis of the rotating end of the angle sensor 7 and the center of the reversing through-hole 43 are on the same vertical plane, which also determines that during the monitoring process, the absolute value of the maximum deflection angle is ninety degrees, the upper rotating seat 8 is rotatably connected to the rotating end of the angle sensor 7 in the clockwise direction, and the lower rotating seat 8 is rotatably connected to the rotating end of the angle sensor 7 in the counterclockwise direction, the connecting rod 52 is rotatably connected to the extension arm 51, and the transverse support deformation pull rope 6 is passed through the reversing through-hole 43 from above. The lower end of the lateral support deformation rope 6 is connected to one end of the connecting rod 81 located below, and the inclined connecting rope 53 is inserted from below the reversing wire hole 43, and one end of the inclined connecting rope 53 is connected to one end of the connecting rod 81 located above. The two connecting rods 81 are arranged in a symmetrical direction, so that there is an opening angle between the lateral support deformation rope 6 and the inclined connecting rope 53, so as to avoid interference between the lateral support deformation rope 6 and the inclined connecting rope 53, which affects the monitoring data, and the initial value can be set to zero, so as to obtain positive and negative monitoring angle values ​​through the angle sensor 7, so as to accurately judge the specific deformation of the beam support.

[0045] When used specifically, the present invention is used as a support beam deformation monitoring device for mining subsidence areas. When installing, the present invention uses the square slots at the two beam claws 12 to clamp the two sides of the support beam, and then uses the two mounting bolts 14 at the transverse connecting screw 11 to achieve transverse tightening and fixing of the two beam claws 12, and then tightens the fixing screws 13, and further abuts against the support beam through the fixing screws 13, so as to further achieve the fixation of the two sides of the beam. By adjusting the position of the sliding sleeve 21 at the transverse connecting screw 11, the installation position of the fixing seat 3 and the wall below is adjusted. At the same time, the adjustable design of the main connecting arm 23 and the auxiliary connecting arm 24 provides a larger installation range for the fixing seat 3. After the installation is completed, the connecting rod 52 is located in the middle of the deformation displacement slide groove 61;

[0046] After the installation is completed, the initial angle value of the angle sensor 7 is zero. During the monitoring process, when the upper supporting beam appears to be laterally tilted and deformed, a torque will be generated on the connecting rod 52, and the extension arm 51 and the tilt sensing seat 5 will be driven to rotate. The arc-shaped tooth surface 57 at the tilt sensing seat 5 is engaged with the gear 56 to drive the rotating rod 1 54 and the tilt connecting rope 53 to rotate synchronously to achieve the winding of the tilt connecting rope 53, which can generate tension on the upper connecting rod 81 and cause the rotating end of the angle sensor 7 to rotate counterclockwise. At the same time, since the lateral supporting deformation rope 6 is in a taut state, under the action of the one-way bearing, the lower connecting rod 81 will not have an angle deflection. At this time, the angle sensor 7 can measure and obtain a relatively large angle change signal, and the deflection angle signal is a negative number, which can be judged as a tilt deformation has occurred at the supporting beam.

[0047] When the lateral support deformation occurs at the upper crossbeam, the feedback joint 27 will move relative to the lateral support deformation pull rope 6. During the relative movement of the feedback joint 27, the inner side of the deformation displacement slide groove 61 will rub against the connecting rod 52. Driven by the friction force, the connecting rod 52 will rotate. The rotation of the connecting rod 52 will reel in the lateral support deformation pull rope 6. While reeling in, it will generate tension on the connecting rod 81 located below and prompt the rotating end of the angle sensor 7 to rotate clockwise. At the same time, since the inclined connecting rope 53 is in a taut state, under the action of the one-way bearing, the upper connecting rod 81 will not deflect at an angle. At this time, the angle sensor 7 can measure and obtain a relatively small angle change signal, and the deflection angle signal is a positive number, which can be judged as the lateral support deformation occurring at the supporting crossbeam.

[0048] Through simple sensor design, it is possible to monitor and judge the different deformations of the beam in a timely manner, so as to make targeted response plans in a timely manner.

[0049] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A device for monitoring deformation of a supporting beam in a mining subsidence area, comprising a beam clamping portion (1), wherein a retractable connecting portion (2) is slidably connected to the beam clamping portion (1), and characterized in that: One end of the telescopic connection portion (2) is connected to a monitoring component, a connection seat (4) is installed in the monitoring component, a semicircular groove (41) is provided on the inner side of the connection seat (4), and a crossbeam deformation monitoring mechanism is also installed in the monitoring component; The crossbeam deformation monitoring mechanism comprises a tilt sensing seat (5) rotatably mounted in the connecting seat (4), extension arms (51) being fixed at both ends of the tilt sensing seat (5), a connecting rod (52) being provided between the two extension arms (51), a rotating rod (54) being rotatably mounted on one side of the connecting seat (4), a tilted rope collecting disc (55) being mounted on one end of the rotating rod (54), a gear (56) being mounted on the other end of the rotating rod (54), an arc-shaped tooth surface (57) being provided on one side of the outer wall of the tilt sensing seat (5) and corresponding to the gear (56), and a tilted connecting pull rope (53) being connected to the inner side of the tilted rope collecting disc (55); A transverse supporting deformation pull rope (6) is connected to the middle portion of the outer wall of the connecting rod (52); A tension reversing seat (42) is fixed on one side of the connecting seat (4) and located above the inclined rope collecting disc (55), and a reversing wire hole (43) is provided at one end of the tension reversing seat (42); An angle sensor (7) is also installed in the monitoring component. A traction part is symmetrically installed at the upper and lower ends of the rotation end of the angle sensor (7). The inclined connection pull rope (53) and the transverse support deformation pull rope (6) are respectively connected to the two traction parts.

2. The device for monitoring deformation of supporting beams in mining subsidence areas according to claim 1 is characterized in that: The crossbeam clamping portion (1) comprises a transverse connecting screw rod (11), and crossbeam claws (12) are slidably connected to both sides of the outer wall of the crossbeam connecting screw rod (11), and the outer sides of the two crossbeam claws (12) are threadedly connected to a mounting bolt (14), and a fixing screw (13) is threadedly installed on the top of one side of the crossbeam claw (12), and a square groove is provided on one side of the crossbeam claw (12) and at a position corresponding to the fixing screw (13) for clamping the two sides of the supporting crossbeam.

3. The device for monitoring deformation of supporting beams in mining subsidence areas according to claim 1 is characterized in that: The telescopic connection part (2) comprises a sliding sleeve (21) slidably arranged in the middle of the outer wall of the transverse connecting screw rod (11), a main connecting arm (23) is installed at the lower end of the sliding sleeve (21), a secondary connecting arm (24) is slidably arranged inside the main connecting arm (23), a plurality of adjusting screw holes (25) are provided on one side of the secondary connecting arm (24) and the main connecting arm (23), a fixing screw (26) is threadedly inserted at the lower side of one side of the main connecting arm (23), and a feedback connector (27) is fixed to one end of the secondary connecting arm (24).

4. The device for monitoring deformation of supporting beams in mining subsidence areas according to claim 3 is characterized in that: A deformation displacement slide groove (61) for use with the connecting rod (52) is provided on one side of the feedback joint (27), and an anti-slip coating is provided at the contact point between the connecting rod (52) and the deformation displacement slide groove (61).

5. The device for monitoring deformation of supporting beams in mining subsidence areas according to claim 3 is characterized in that: The monitoring component comprises a fixing seat (3) connected to the feedback connector (27), a protective cover (31) being installed on the fixing seat (3), and a docking port (32) being provided at the upper end of the protective cover (31) and corresponding to the feedback connector (27).

6. The device for monitoring deformation of supporting beams in mining subsidence areas according to claim 1 is characterized in that: The traction part comprises a rotating seat (8) mounted on the rotating end of the angle sensor (7), a connecting rod (81) is mounted on one side of the outer wall of the rotating seat (8), and the rotating seat (8) and the angle sensor (7) are connected at a connection point via a one-way bearing.

7. The device for monitoring deformation of supporting beams in mining subsidence areas according to claim 1 is characterized in that: The connecting rod (52) is rotatably connected to the extension arm (51); the transverse support deformation rope (6) is inserted from above the reversing wire hole (43); and the lower end of the transverse support deformation rope (6) is connected to one end of the connecting rod (81) located below.

8. The device for monitoring deformation of supporting beams in mining subsidence areas according to claim 1 is characterized in that: The inclined connecting pull rope (53) is inserted from below the reversing wire hole (43), and one end of the inclined connecting pull rope (53) is connected to one end of a connecting pull rod (81) located above.

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