Laser monitoring equipment for support deformation in underground mines

Abstract

The present invention belongs to the technical field of underground mine deformation monitoring, and is particularly concerned with laser monitoring equipment for support deformation in underground mines. The following scheme is proposed, specifically comprising a main mounting frame and a sub-mounting frame, wherein the main mounting frame is sequentially mounted on the surface of the underground support main support, and the sub-mounting frame is sequentially mounted on the surface of the support connecting plate, and the main mounting frame and the sub-mounting frame are spaced apart, and a monitoring tube is mounted on the bottom of the sub-mounting frame, and two parallel monitoring cavities are arranged on both sides of the monitoring tube. In the present invention, the monitoring tube is mounted on the support connecting plate through the sub-mounting frame, and the installation is simple and convenient, which facilitates the modification of the existing underground support structure. The monitoring scheme is convenient for construction according to the direction of the tunnel, reducing the cost of tunnel support deformation monitoring, and isolating the monitoring laser beam from the tunnel environment through the monitoring tube to prevent the beam from being affected by the tunnel environment and reducing the accuracy and timeliness of monitoring.

Description

Technical Field

[0001] The present invention relates to the technical field of underground mine deformation monitoring, and in particular to laser monitoring equipment for underground mine support deformation. Background Art

[0002] In underground metal mining, the shafts, tunnels, and chambers excavated for hoisting, transportation, ventilation, drainage, power supply, and other needs are collectively referred to as mine shafts. my country's metal mines are mainly mined underground, requiring the excavation of a large number of tunnels. The use of tunnel support to maintain tunnel patency and surrounding rock stability is of great significance to metal mine construction and production. The basic purpose of tunnel support is to mitigate and reduce the movement of surrounding rock, so that the tunnel cross-section does not shrink excessively, and at the same time prevent the collapse of dispersed and damaged surrounding rock. The effectiveness of tunnel support depends not only on the supporting force of the support itself, but also on a series of factors such as the surrounding rock properties, the mechanical properties of the support (support force and shrinkage), the density of the support installation, the early or late installation time, the quality of the support installation, and the contact mode with the surrounding rock (point contact or surface contact).

[0003] The underground support structure of mines bears the pressure from the rock and soil around the tunnel. Monitoring the support deformation is an information weapon to ensure the safety of tunnel construction. Large-scale support deformation and even mine collapse all start from small deformation. If small deformation can be discovered and repaired in time when it occurs, large-scale accidents can be avoided to a large extent. At present, the monitoring of underground mine support deformation is generally carried out manually using measuring instruments such as total stations, levels or convergence meters. It is difficult to accurately locate the deformation range of the support structure and the distribution of the strong deformation area, and it is affected by human factors. There is inevitably a practical problem of too low monitoring frequency.

[0004] In view of this, the present invention provides a laser monitoring device for underground mine support deformation to solve the technical problems existing in the above-mentioned prior art. Summary of the Invention

[0005] Based on the technical problems existing in the background technology, the present invention proposes a laser monitoring device for deformation of underground mine support.

[0006] The laser monitoring equipment for underground mine support deformation proposed by the present invention includes a main mounting frame and a sub-mounting frame, the main mounting frame is sequentially installed on the surface of the underground support main support, the sub-mounting frame is sequentially installed on the surface of the support connecting plate, and the main mounting frame and the sub-mounting frame are arranged at intervals, the bottom of the sub-mounting frame is equipped with a monitoring tube, and two parallel monitoring cavities are arranged on both sides of the monitoring tube, the bottom of the main mounting frame is equipped with an equipment mounting seat, and the bottom of the equipment mounting seat is sequentially equipped with a first laser monitoring component, an inspection component and a second laser monitoring component, the outer side of the equipment mounting seat is provided with a protective cover or a movable protective cover, both sides of the protective cover and the movable protective cover are connected to the end of the monitoring tube, the first laser transmitting module and the first laser receiving module are installed on both sides of the first laser monitoring component, and the second laser transmitting module and the second laser receiving module are installed on both sides of the second laser monitoring component.

[0007] Preferably in the present invention, the main mounting frame includes a main board body, U-shaped clamps are provided on both sides of the main board body, and guide rods that slide with the U-shaped clamps are provided on both side surfaces of the main board body, a two-way threaded rod is screwed between the middle parts of the two U-shaped clamps, and the two-way threaded rod is rotatably connected to the main board body.

[0008] Preferably in the present invention, the equipment mounting base includes an annular frame, the top of the annular frame is provided with a ball head rotatably connected to the bottom of the main board body, and the outer side of the ball head is provided with a locking ring, which is threadedly connected to the bottom of the main board body.

[0009] Preferably in the present invention, the first laser monitoring component includes a first plug connector that is pluggable and connected to the equipment mounting seat, and a first monitoring seat is provided at the bottom of the first plug connector, and two pairs of first laser emitting modules and first laser receiving modules are symmetrically distributed on both sides of the first monitoring seat.

[0010] Preferably in the present invention, the inspection component includes a servo motor pluggably connected to the equipment mounting base, and a rotating base is installed at the bottom of the servo motor, two right-angle reflectors are provided at the bottom of the rotating base, and a rectangular channel is provided between the two right-angle reflectors.

[0011] Preferably in the present invention, the protective cover includes a first sealing cover, and the top of the first sealing cover is provided with a first threaded adjustment portion that is threadedly connected to the annular frame, the bottom of the first sealing cover is threadedly connected with a first sealing cover, and both ends of the first sealing cover are provided with a first connecting pipe portion that is compatible with the monitoring tube.

[0012] Preferably in the present invention, the second laser monitoring assembly includes a second plug connector that is pluggably connected to the equipment mounting seat, and two second monitoring seats are rotatably installed at the bottom of the second plug connector, and two pairs of the second laser emitting modules and second laser receiving modules are respectively installed on the side positions of the two second monitoring seats.

[0013] Preferably in the present invention, the movable protective cover includes a second sealing cover, and the top of the second sealing cover is provided with a second threaded adjustment portion that is screwed to the annular frame, the bottom of the second sealing cover is screwed to a second sealing cover, and both ends of the second sealing cover are provided with adjustment grooves with fan-shaped structures, and the interior of the adjustment groove is slidably installed with a sealing plate with an arc structure, and the middle part of the outer arc surface of the sealing plate is provided with a second connecting pipe portion that is compatible with the monitoring tube, and both sides of the sealing plate are screwed with adjustment bolts.

[0014] Preferably in the present invention, the auxiliary mounting frame includes a U-shaped buckle and a T-shaped pipe connector, the pipe connector is adapted to the end of the monitoring tube, and a movable hanger is rotatably installed between the pipe connector and the buckle, and locking bolts are screwed on both sides of the buckle.

[0015] Preferably in the present invention, the movable hanger includes a rectangular frame and threaded rods screwed to both ends of the rectangular frame, and the ends of the threaded rods are connected to the buckles and pipe connectors through ball hinges.

[0016] Compared with the existing technology, the present invention provides a laser monitoring device for underground mine support deformation, which has the following beneficial effects:

[0017] In the present invention, a first laser monitoring component with a fixed structure and a second laser monitoring component with adjustable direction are provided, and a plurality of inspection components are installed between the laser monitoring components. According to the underground mine environment, the first laser monitoring component is installed on the surface of the underground support main bracket at both ends of the straight tunnel through the main mounting frame and the equipment mounting seat, and a plurality of inspection components are installed in sequence on the surface of the underground support main bracket in the middle section of the straight tunnel, and the auxiliary mounting frames are installed in sequence on the bracket connecting plates between the underground support main brackets. The first laser monitoring component in front, the inspection component in the middle and the first laser monitoring component in the back are connected in sequence through the monitoring tube, and the first laser emission module at one end of the straight tunnel emits The monitoring laser passes through multiple monitoring tubes and inspection components in sequence and is received by the first laser receiving module located at the other end of the straight tunnel. When the support in a certain section of the straight tunnel is deformed, causing the position of the monitoring tube and the inspection component to shift, the lasers at both ends of the straight tunnel cannot be received by each other. At this time, the inspection component located in the middle rotates from both ends to the middle in sequence, stays for a few seconds, and then resets. When the inspection component in the non-deformed area rotates, the laser light emitted by the first laser emitting module is reflected and received by the first laser receiving module at the same end. When the inspection component in the deformed area rotates, the first laser receiving module has no feedback, and the deformation area of ​​the tunnel support can be quickly determined.

[0018] For a tunnel with an arc, a second laser receiving module is installed on the surface of the underground support main support of the arc tunnel through the main mounting frame and the equipment mounting seat according to the size and distance of the arc, and auxiliary mounting frames are installed in sequence on the support connecting plates between the underground support main supports. The two adjacent second laser monitoring components are connected by a monitoring tube installed on the auxiliary mounting frame, so that the laser beams emitted by the two adjacent second laser monitoring components are received by each other. When the support structure located at the bend is deformed, the position of the second laser monitoring component or the monitoring tube is changed, and the second laser receiving module cannot sense the laser beam. The position of the deformed support structure at the bend can be quickly determined, and the deformation position of the support structure can be quickly monitored, thereby improving the accuracy and timeliness of support deformation monitoring in underground mines.

[0019] The first laser monitoring component, the inspection component and the second laser monitoring component are connected to the main underground support bracket of the mine through the main mounting frame, and the monitoring tube is installed on the bracket connecting plate through the auxiliary mounting frame. The installation is simple and convenient, which is convenient for the transformation of the existing underground support structure. The monitoring scheme is convenient for construction according to the direction of the tunnel, reducing the cost of tunnel support deformation monitoring, and isolating the monitoring laser beam from the tunnel environment through the monitoring tube to prevent the beam from being affected by the tunnel environment and reducing the accuracy and timeliness of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic structural diagram of the laser monitoring equipment for underground mine support deformation proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of the partial structure of the laser monitoring equipment for underground mine support deformation proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the distribution structure of the auxiliary mounting frame of the laser monitoring equipment for underground mine support deformation proposed by the present invention;

[0023] Figure 4 This is a schematic diagram of the auxiliary mounting frame structure of the laser monitoring equipment for underground mine support deformation proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the main mounting frame structure of the laser monitoring equipment for underground mine support deformation proposed by the present invention;

[0025] Figure 6 This is a schematic structural diagram of the first laser monitoring component of the laser monitoring equipment for underground mine support deformation proposed by the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the inspection component of the laser monitoring equipment for underground mine support deformation proposed by the present invention;

[0027] Figure 8 This is a schematic structural diagram of the second laser monitoring component of the laser monitoring equipment for underground mine support deformation proposed by the present invention;

[0028] Figure 9 This is a schematic diagram of the laser beam of the laser monitoring equipment for underground mine support deformation proposed by the present invention in a straight tunnel environment;

[0029] Figure 10 This is a schematic diagram of the laser beam in a curved tunnel environment of the laser monitoring equipment for underground mine support deformation proposed by the present invention.

[0030] In the figure: 1 downhole support main bracket, 2 bracket connecting plate, 3 main mounting frame, 31 main body, 32 U-shaped clamp, 33 guide rod, 34 bidirectional threaded rod, 4 protective cover, 41 first sealing cover, 42 first threaded adjustment part, 43 first connecting pipe part, 44 first sealing cover, 5 auxiliary mounting frame, 51 rectangular frame, 52 threaded rod, 53 pipe connector, 54 buckle, 55 locking bolt, 6 monitoring pipe, 7 movable shield, 71 second sealing cover, 72 second threaded adjustment part, 73 second connecting pipe part, 74 second sealing cover, 75 sealing plate, 76 adjusting bolt, 8 equipment mounting base, 81 Annular frame, 82 ball head, 83 locking ring, 9 first laser monitoring assembly, 91 first monitoring seat, 92 first plug connector, 93 first laser receiving module, 94 first laser emitting module, 10 inspection assembly, 101 servo motor, 102 rotating seat, 103 right-angle reflector, 104 rectangular channel, 11 second laser monitoring assembly, 111 second monitoring seat, 112 second plug connector, 113 second laser receiving module, 114 second laser emitting module, 12 monitoring cavity. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] Reference Figure 1-10 , a laser monitoring device for support deformation in underground mines, comprising a main mounting frame 3 and a sub-mounting frame 5, the main mounting frame 3 being sequentially mounted on the surface of the underground support main support 1, the sub-mounting frame 5 being sequentially mounted on the surface of the support connecting plate 2, and the main mounting frame 3 and the sub-mounting frame 5 being spaced apart, a monitoring tube 6 being mounted at the bottom of the sub-mounting frame 5, and two parallel monitoring cavities 12 being arranged on both sides of the monitoring tube 6, an equipment mounting seat 8 being mounted at the bottom of the main mounting frame 3, and a first laser monitoring component 9, an inspection component 10 and a second laser monitoring component 11 being sequentially mounted at the bottom of the equipment mounting seat 8, a protective cover 4 or a movable protective cover 7 being provided on the outer side of the equipment mounting seat 8, both sides of the protective cover 4 and the movable protective cover 7 being connected to the end of the monitoring tube 6, a first laser emitting module 94 and a first laser receiving module 93 being mounted on both sides of the first laser monitoring component 9, and a second laser emitting module 114 and a second laser receiving module 113 being mounted on both sides of the second laser monitoring component 11;

[0033] like Figure 9As shown, a first laser monitoring assembly 9 is installed on the surface of the downhole support main bracket 1 at both ends of the straight tunnel through a main mounting frame 3 and an equipment mounting seat 8, and a plurality of inspection assemblies 10 are installed in sequence on the surface of the downhole support main bracket 1 in the middle section of the straight tunnel, and a sub-mounting frame 5 is installed in sequence on the bracket connecting plate 2 between the downhole support main brackets 1, and the first laser monitoring assembly 9 in front, the inspection assembly 10 in the middle and the first laser monitoring assembly 9 in the back are connected in sequence through a monitoring tube 6. The monitoring laser emitted by the first laser emitting module 94 at one end of the straight tunnel passes through a plurality of monitoring tubes 6 and the inspection assembly 10 in sequence and is detected by the second laser emitting module 94 at the other end of the straight tunnel. A laser receiving module 93 receives. When a support in a certain section of a straight roadway is deformed, causing the position of the monitoring tube 6 and the inspection component 10 to shift, the lasers at both ends of the straight roadway cannot be received by each other. At this time, the inspection component 10 located in the middle rotates 90° from both ends to the middle, stays for a few seconds, and then resets. When the inspection component 10 in the non-deformed area rotates 90°, the laser light emitted by the first laser emitting module 94 is reflected and received by the first laser receiving module 93 at the same end. When the inspection component 10 in the deformed area rotates, the first laser receiving module 93 does not provide feedback, so the deformed area of ​​the roadway support can be quickly determined.

[0034] like Figure 10 As shown, for a tunnel with an arc, according to the size and distance of the arc, a second laser receiving module 113 is installed on the surface of the underground support main bracket 1 of the arc tunnel through the main mounting frame 3 and the equipment mounting seat 8, and the auxiliary mounting frame 5 is installed in sequence on the bracket connecting plate 2 between the underground support main brackets 1, and the two adjacent second laser monitoring components 11 are connected through the monitoring tube 6 installed on the auxiliary mounting frame 5, so that the laser beams emitted by the two adjacent second laser monitoring components 11 are received by each other. When the support structure located at the bend is deformed, the position of the second laser monitoring component 11 or the monitoring tube 6 is changed, and the second laser receiving module 113 cannot sense the laser beam, so the position of the deformed support structure at the bend can be quickly determined, and the deformation position of the support structure can be quickly monitored, thereby improving the accuracy and timeliness of the deformation monitoring of the underground support in mines.

[0035] like Figure 4As shown, the sub-mounting frame 5 includes a U-shaped buckle 54 and a T-shaped pipe connector 53. The pipe connector 53 is adapted to the end of the monitoring tube 6, and a movable hanger is rotatably installed between the pipe connector 53 and the buckle 54. Locking bolts 55 are screwed on both sides of the buckle 54. In the present invention, when installing, the buckle 54 is pushed toward the direction of the bracket connecting plate 2 to be clamped to the outer position of the bracket connecting plate 2. Then, the locking bolt 55 is rotated to lock and fix the buckle 54 and the bracket connecting plate 2, so that the sub-mounting frame 5 follows the movement of the bracket connecting plate 2 and transmits the deformation condition of the bracket connecting plate 2. When the bracket connecting plate 2 is deformed, the monitoring tubes 6 at both ends are driven to move sideways, thereby blocking the light beam inside the monitoring tube 6 and transmitting the deformation information of the bracket connecting plate 2.

[0036] The movable hanger includes a rectangular frame 51 and a threaded rod 52 screwed to the two ends of the rectangular frame 51. The ends of the threaded rod 52 are connected to the buckle 54 and the pipe connector 53 through a ball hinge. In the present invention, after the buckle 54 is fixed to the bracket connecting plate 2, the height and position of the pipe connector 53 can be adjusted by rotating the threaded rod 52, thereby adjusting the position of the monitoring tube 6.

[0037] like Figure 5 As shown, the main mounting frame 3 includes a main board body 31, U-shaped clamps 32 are provided on both sides of the main board body 31, and guide rods 33 that slide with the U-shaped clamps 32 are provided on both side surfaces of the main board body 31. A two-way threaded rod 34 is screwed between the middle parts of the two U-shaped clamps 32, and the two-way threaded rod 34 is rotatably connected to the main board body 31. In the present invention, the U-shaped clamps 32 are designed according to the shape of the downhole support main bracket 1. During installation, the two-way threaded rod 34 is rotated to make the U-shaped clamps 32 at both ends close to each other, so that the main mounting frame 3 is stably clamped on the outside of the downhole support main bracket 1, which is convenient for the installation and adjustment of the main mounting frame 3, can effectively reduce the manpower investment in the installation of laser monitoring equipment, and the external installation effectively improves the construction safety and convenience.

[0038] The equipment mounting base 8 includes an annular frame 81, and a ball head 82 is provided on the top of the annular frame 81 for rotationally connecting to the bottom of the main board 31, and a locking ring 83 is provided on the outer side of the ball head 82, and the locking ring 83 is threadedly connected to the bottom of the main board 31. In the present invention, the first laser monitoring component 9, the inspection component 10 and the second laser monitoring component 11 are installed at the lower end position of the annular frame 81 by plugging and unplugging. At the same time, the annular frame 81 is installed at the bottom of the main board 31 through the ball head 82. During the installation process of the first laser monitoring component 9, the inspection component 10 and the second laser monitoring component 11, it is convenient to adjust their installation height and angle.

[0039] like Figure 6As shown, the first laser monitoring component 9 includes a first plug connector 92 which is pluggable connected to the equipment mounting base 8, and a first monitoring base 91 is provided at the bottom of the first plug connector 92. Two pairs of first laser emitting modules 94 and first laser receiving modules 93 are symmetrically distributed on both sides of the first monitoring base 91. In the present invention, the first laser monitoring component 9 is installed at the bottom position of the equipment mounting base 8 in a pluggable manner, and the modular design facilitates the replacement and maintenance of the first laser monitoring component 9.

[0040] like Figure 7 As shown, the inspection component 10 includes a servo motor 101 that is plugged in and out of the equipment mounting base 8, and a rotating base 102 is installed at the bottom of the servo motor 101. Two right-angle reflectors 103 are provided at the bottom of the rotating base 102, and a rectangular channel 104 is provided between the two right-angle reflectors 103. In the present invention, when laser monitoring the deformation of the support underground in the mine, a parallel laser beam passes through the rectangular channel 104. When the first laser monitoring components 9 at both ends cannot receive each other's laser signals, the inspection component 10 close to the first laser monitoring component 9 is rotated 90°. At this time, the two right-angle reflectors 103 face the first laser monitoring component 9, and the laser is reflected back by the right-angle reflector 103 and received by the first laser receiving module 93 located on the side. It can be known that the support structure here is not deformed. The laser cannot be reflected back by the right-angle reflector 103, so it can be known that the support structure here is deformed, and the deformation position of the support structure can be quickly obtained.

[0041] like Figure 7 As shown, the protective cover 4 includes a first sealing cover 41, and the top of the first sealing cover 41 is provided with a first threaded adjustment portion 42 that is screwed to the annular frame 81, the bottom of the first sealing cover 41 is screwed with a first sealing cover 44, and both ends of the first sealing cover 41 are provided with a first connecting pipe portion 43 that is compatible with the monitoring tube 6. In the present invention, the protective cover 4, the monitoring tube 6 and the movable protective cover 7 are used to construct a monitoring space isolated from the tunnel environment, which effectively avoids the refraction of the laser beam caused by the influence of water vapor, dust, etc. in the tunnel, and through the cooperation of the monitoring tube 6 and the auxiliary mounting frame 5, it is used to sense the deformation of the bracket connecting plate 2, thereby improving the accuracy of monitoring the deformation of the underground mine support.

[0042] like Figure 8As shown, the second laser monitoring component 11 includes a second plug connector 112 which is plugged and unplugged with the equipment mounting base 8, and two second monitoring bases 111 are rotatably installed at the bottom of the second plug connector 112, and two pairs of second laser emitting modules 114 and second laser receiving modules 113 are respectively installed on the side positions of the two second monitoring bases 111. In the present invention, two rotatable and adjustable second monitoring bases 111 are provided in the second laser monitoring component 11. When the support structure of the curved tunnel is deformed, the emission and receiving angles of the second laser emitting module 114 and the second laser receiving module 113 are adjusted by rotating the second monitoring base 111, so as to quickly adapt to the deformation detection technical solution of the curved tunnel support structure and improve the versatility of the laser monitoring equipment.

[0043] like Figure 8 As shown, the movable shield 7 includes a second sealing cover 71, and the top of the second sealing cover 71 is provided with a second threaded adjustment portion 72 which is screwed to the annular frame 81, and the bottom of the second sealing cover 71 is screwed to a second sealing cover 74, and both ends of the second sealing cover 71 are provided with adjustment grooves of a fan-shaped structure, and a sealing plate 75 of an arc structure is slidably installed inside the adjustment groove, and a second connecting pipe portion 73 which is adapted to the monitoring tube 6 is provided in the middle of the outer arc surface of the sealing plate 75, and adjustment bolts 76 are screwed on both sides of the sealing plate 75. In the present invention, the movable shield 7 is sleeved on the outside of the second laser monitoring assembly 11, and relies on the sliding adjustment of the sealing plate 75 to quickly correspond to the orientation of the second laser emitting module 114 and the second laser receiving module 113. At the same time, the adjusting bolt 76 is rotated, and the end of the adjusting bolt 76 is used to push the second monitoring seat 111 to change the angle, which is convenient for the installation and debugging of the second laser monitoring assembly 11.

[0044] During use, according to the underground environment of the mine, the first laser monitoring component 9 is installed on the surface of the underground support main bracket 1 at both ends of the straight tunnel through the main mounting frame 3 and the equipment mounting seat 8, and multiple inspection components 10 are installed in sequence on the surface of the underground support main bracket 1 in the middle section of the straight tunnel, and the auxiliary mounting frame 5 is installed in sequence on the bracket connecting plate 2 between the underground support main brackets 1. The first laser monitoring component 9 in front, the inspection component 10 in the middle and the first laser monitoring component 9 in the back are connected in sequence through the monitoring tube 6. The monitoring laser emitted by the first laser emitting module 94 at one end of the straight tunnel passes through multiple monitoring tubes 6 and the inspection component 10 in sequence and is detected by the monitoring tube 6. The first laser receiving module 93 at the other end receives the light. When a certain section of the support in the straight tunnel is deformed, causing the position of the monitoring tube 6 and the inspection component 10 to shift, the lasers at both ends of the straight tunnel cannot be received by each other. At this time, the inspection component 10 located in the middle rotates 90° from both ends to the middle, stays for a few seconds, and then resets. When the inspection component 10 in the non-deformed area rotates 90°, the laser light emitted by the first laser emitting module 94 is reflected and received by the first laser receiving module 93 at the same end. When the inspection component 10 in the deformed area rotates, the first laser receiving module 93 does not provide feedback, so the deformed area of ​​the tunnel support can be quickly determined.

[0045] For a tunnel with an arc, according to the size and distance of the arc, a second laser receiving module 113 is installed on the surface of the underground support main support 1 of the arc tunnel through the main mounting frame 3 and the equipment mounting seat 8, and the auxiliary mounting frame 5 is installed in sequence on the support connecting plate 2 between the underground support main supports 1, and the two adjacent second laser monitoring components 11 are connected through the monitoring tube 6 installed on the auxiliary mounting frame 5, so that the laser beams emitted by the two adjacent second laser monitoring components 11 are received by each other. When the support structure located at the bend is deformed, the position of the second laser monitoring component 11 or the monitoring tube 6 is changed, and the second laser receiving module 113 cannot sense the laser beam, so the position of the deformed support structure at the bend can be quickly determined, and the deformation position of the support structure can be quickly monitored, thereby improving the accuracy and timeliness of support deformation monitoring in underground mines;

[0046] The first laser monitoring component 9, the inspection component 10 and the second laser monitoring component 11 are connected to the mine's underground support main support 1 through the main mounting frame 3, and the monitoring tube 6 is installed on the support connecting plate 2 through the auxiliary mounting frame 5. The installation is simple and convenient, which is convenient for the transformation of the existing underground support structure. The monitoring scheme is convenient for construction according to the direction of the tunnel, reducing the cost of tunnel support deformation monitoring, and is isolated from the monitoring laser beam by the monitoring tube 6. The tunnel environment can prevent the beam from being affected by the tunnel environment and reducing the accuracy and timeliness of monitoring.

[0047] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A laser monitoring device for support deformation in underground mines, comprising a main mounting frame (3) and a secondary mounting frame (5), characterized in that: The main mounting frame (3) is sequentially mounted on the surface of the downhole support main support (1), and the auxiliary mounting frame (5) is sequentially mounted on the surface of the support connecting plate (2), and the main mounting frame (3) and the auxiliary mounting frame (5) are arranged at intervals, a monitoring tube (6) is installed at the bottom of the auxiliary mounting frame (5), and two parallel monitoring cavities (12) are arranged on both sides of the monitoring tube (6), an equipment mounting seat (8) is installed at the bottom of the main mounting frame (3), and a first laser monitoring component (9), an inspection component ( 10) and a second laser monitoring assembly (11), wherein the outer side of the equipment mounting seat (8) is provided with a protective cover (4) or a movable protective cover (7), both sides of the protective cover (4) and the movable protective cover (7) are connected to the end of the monitoring tube (6), both sides of the first laser monitoring assembly (9) are provided with a first laser emitting module (94) and a first laser receiving module (93), and both sides of the second laser monitoring assembly (11) are provided with a second laser emitting module (114) and a second laser receiving module (113); The inspection component (10) includes a servo motor (101) pluggably connected to the equipment mounting base (8), and a rotating base (102) is installed at the bottom of the servo motor (101), and two right-angle reflectors (103) are provided at the bottom of the rotating base (102), and a rectangular channel (104) is provided between the two right-angle reflectors (103).

2. The laser monitoring device for underground mine support deformation according to claim 1 is characterized in that: The main mounting frame (3) includes a main board (31), U-shaped clamping plates (32) are provided on both sides of the main board (31), and guide rods (33) are provided on both side surfaces of the main board (31) for sliding engagement with the U-shaped clamping plates (32), a bidirectional threaded rod (34) is screwed between the middle portions of the two U-shaped clamping plates (32), and the bidirectional threaded rod (34) is rotatably connected to the main board (31).

3. The laser monitoring device for underground mine support deformation according to claim 2 is characterized in that: The equipment mounting seat (8) comprises an annular frame (81), the top of the annular frame (81) is provided with a ball head (82) rotatably connected to the bottom of the main board (31), and the outer side of the ball head (82) is provided with a locking ring (83), and the locking ring (83) is threadedly connected to the bottom of the main board (31).

4. The laser monitoring device for underground mine support deformation according to claim 3 is characterized in that: The first laser monitoring assembly (9) comprises a first plug connector (92) pluggably connected to the equipment mounting base (8), and a first monitoring base (91) is provided at the bottom of the first plug connector (92), and two pairs of first laser emitting modules (94) and first laser receiving modules (93) are symmetrically distributed on both sides of the first monitoring base (91).

5. The laser monitoring device for underground mine support deformation according to claim 4 is characterized in that: The protective cover (4) comprises a first sealing cover (41), and a first threaded adjustment portion (42) threadedly engaged with the annular frame (81) is provided at the top of the first sealing cover (41), a first sealing cover (44) is threadedly engaged with the bottom of the first sealing cover (41), and first connecting pipe portions (43) adapted to the monitoring pipe (6) are provided at both ends of the first sealing cover (41).

6. The laser monitoring device for underground mine support deformation according to claim 5 is characterized in that: The second laser monitoring assembly (11) includes a second plug connector (112) pluggably connected to the equipment mounting base (8), and two second monitoring bases (111) are rotatably mounted on the bottom of the second plug connector (112), and two pairs of the second laser emitting modules (114) and the second laser receiving modules (113) are respectively mounted on the side positions of the two second monitoring bases (111).

7. The laser monitoring device for underground mine support deformation according to claim 6 is characterized in that: The movable shield (7) includes a second sealing cover (71), and a second threaded adjustment portion (72) screwed to the annular frame (81) is provided on the top of the second sealing cover (71), a second sealing cover (74) is screwed to the bottom of the second sealing cover (71), and fan-shaped adjustment grooves are provided at both ends of the second sealing cover (71), and an arc-shaped sealing plate (75) is slidably installed inside the adjustment groove, a second connecting pipe portion (73) adapted to the monitoring tube (6) is provided in the middle of the outer arc surface of the sealing plate (75), and adjustment bolts (76) are screwed to both sides of the sealing plate (75).

8. The laser monitoring device for underground mine support deformation according to claim 1 is characterized in that: The auxiliary mounting frame (5) includes a U-shaped buckle (54) and a T-shaped pipe connector (53). The pipe connector (53) is adapted to the end of the monitoring tube (6). A movable bracket is rotatably mounted between the pipe connector (53) and the buckle (54). Locking bolts (55) are screwed on both sides of the buckle (54).

9. The laser monitoring device for underground mine support deformation according to claim 8, characterized in that: The movable hanger comprises a rectangular frame (51) and threaded rods (52) screwed to both ends of the rectangular frame (51), and the ends of the threaded rods (52) are connected to the buckles (54) and the pipe connectors (53) via ball hinges.

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