Transient electromagnetic geophysical prospecting line frame rotating device for coal mine

Abstract

The utility model relates to the technical field of coal mine exploration, in particular to a transient electromagnetic geophysical prospecting line frame rotating device for a coal mine, which comprises two placing rods, a cross rod is fixedly connected to the surfaces of the two placing rods, a protractor is rotatably connected to the side surface of the cross rod, and a rotating shaft is rotatably connected to the side surface of the protractor. A measuring rod is fixedly connected to the surface of the rotating shaft, a rotating plate is fixedly connected to the side face of the measuring rod, a wire frame body is fixedly connected to the side, away from the measuring rod, of the rotating plate, and a limiting device is arranged on the side, away from the wire frame, of the protractor and comprises a half gear. The half gear is fixedly connected to the end, away from the protractor, of the rotating shaft, and a mounting rod is fixedly connected to the side, close to the half gear, of the protractor. According to the utility model, the problem that the accuracy of a measurement result is influenced because the wire frame is often required to be supported by a worker after the angle adjustment of the wire frame is completed and is difficult to ensure that the wire frame does not deflect is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine exploration, in particular to a transient electromagnetic geophysical exploration wire frame rotating device for coal mines. Background Art

[0002] In the process of coal mining, it is often necessary to explore the distribution of water-richness in coal mines to provide a technical basis for water prevention and control work. Usually, when exploring the water-richness of coal mines, a transient electromagnetic instrument can be used to carry out work, and the water-richness inside the mining face and the roof and floor, in front of the excavation tunnel, and around the tunnel can be detected. The detection direction is determined by the rotation direction of the transient electromagnetic instrument wire frame to achieve accurate exploration of water-richness.

[0003] A Chinese patent with publication number CN214540080U discloses a transient electromagnetic geophysical exploration wire frame rotation device for coal mines. The key points of its technical solution are: two shaft sleeves are sleeved on the fixed frame, long rods are fixed on both sides of the fixed frame, an angle gauge is placed in the middle of the fixed frame, and the bottom of the angle gauge is hinged on the two shaft sleeves through a rotating shaft. The angle gauge is provided with a semicircular arc groove and two sliding grooves. The two sliding grooves are respectively placed on both sides of the angle gauge and are both placed below the semicircular arc groove. Multiple circular grooves are opened at equal angles on the sliding grooves. Scale lines are placed on both sides of the angle gauge, and the scale lines are placed below the sliding grooves. One end of the rotating pointer and one end of the fixed support rod are hinged on both sides of the bottom of the angle gauge through the main rivet axis, and one end of the rotating pointer and one end of the fixed support rod are both provided with strip grooves.

[0004] Existing related technologies often have the following defects: In the existing technology, when using a transient electromagnetic instrument to explore the water-richness of coal mines, it is necessary to rotate the wire frame and adjust the angle of the wire frame. After the angle adjustment of the wire frame is completed, the staff is often required to support the wire frame, making it difficult to ensure that the wire frame will not deflect, thereby affecting the accuracy of the measurement results.

[0005] Therefore, the utility model provides a transient electromagnetic geophysical exploration wire frame rotating device for coal mines. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings in the prior art that after the angle adjustment of the wire frame is completed, the staff often needs to support the wire frame, which makes it difficult to ensure that the wire frame will not deflect, thereby affecting the accuracy of the measurement results. A transient electromagnetic geophysical exploration wire frame rotation device for coal mines is proposed.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a transient electromagnetic geophysical detection wire frame rotation device for coal mines, comprising two placing rods, the surfaces of the two placing rods are fixedly connected to cross bars, the side surfaces of the cross bars are rotatably connected to a protractor, the side surfaces of the protractor are rotatably connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to a measuring rod, the side surfaces of the measuring rod are fixedly connected to a rotating plate, the side of the rotating plate away from the measuring rod is fixedly connected to a wire frame body, a side of the protractor away from the wire frame body is provided with a limiting device, the limiting device comprises a half gear, the half gear is fixedly connected to one end of the rotating shaft away from the protractor, the side of the protractor close to the half gear is fixedly connected to a mounting rod, the other end of the mounting rod is rotatably connected to a limiting gear, and the limiting gear is meshed with the half gear.

[0008] The effect achieved by the above components is: by setting the mounting rod, the limit gear can be connected to the protractor, and by limiting the rotation of the limit gear, the rotation of the half gear and the rotating shaft can be limited, thereby limiting the rotation of the wire frame body.

[0009] Preferably, a fixing rod is fixedly connected to one side of the protractor close to the limiting gear, and the other end of the fixing rod is fixedly connected to a connecting plate.

[0010] The effect achieved by the above components is that the connecting plate and the protractor can be connected by arranging the fixing rod, thereby realizing the installation of the connecting plate.

[0011] Preferably, a first threaded rod is threadedly inserted into the inner wall of the connecting plate, and one end of the first threaded rod close to the limiting gear is fixedly connected to a mounting plate.

[0012] The effect achieved by the above components is that the first threaded rod threadedly inserted into the inner wall of the connecting plate can rotate, thereby driving the mounting plate to move closer to or away from the limiting gear.

[0013] Preferably, a rubber pad is glued to one side of the mounting plate close to the limiting gear.

[0014] The effects achieved by the above components are: by arranging the rubber pad and the mounting plate, the rotation of the limit gear can be restricted, and by arranging the rubber pad, the restriction effect on the limit gear can be improved.

[0015] Preferably, the surfaces of the two placing rods are provided with a fixing device, and the fixing device includes a movable plate, and the movable plate is installed on the upper surface of the placing rod, and the upper surface of the cross bar is installed with a control plate, and the lower surfaces of the movable plate and the control plate are fixedly connected to two pointed rods, and the surfaces of the four pointed rods are all covered with a stabilizing plate, and the stabilizing plate is fixedly connected to the placing rod.

[0016] The effects achieved by the above components are: by setting the pointed rod, the position of the placement rod can be fixed; by setting the stabilizing plate, the stability of the pointed rod during movement can be improved; by setting the control plate and the moving plate, the movement of the four pointed rods can be synchronously controlled.

[0017] Preferably, two connecting rods are fixedly connected to one side of the control plate close to the movable plate, the other ends of the two connecting rods are fixedly connected to the movable plate, and the inner wall of the control plate is rotatably connected to a second threaded rod.

[0018] The effect achieved by the above components is that the control plate and the movable plate can be connected by setting a connecting rod, so that when the control plate moves, the movable plate can be driven to move.

[0019] Preferably, one end of the second threaded rod away from the control plate is fixedly connected to the limiting plate, the surface of the second threaded rod is covered with an arc plate, the arc plate is fixedly connected to the cross bar, and the second threaded rod is threadedly inserted into the inner wall of the arc plate.

[0020] The effects achieved by the above components are: by rotating the second threaded rod, the control plate can be driven to move closer to or away from the arc plate, and by setting the limit plate, the connection between the second threaded rod and the arc plate can be ensured.

[0021] In summary:

[0022] 1. In the utility model, by setting a limit device, the position of the wire frame can be fixed after the angle of the wire frame is adjusted using the transient electromagnetic geophysical exploration wire frame rotation device for coal mines, thereby avoiding as much as possible the situation where the wire frame deflection is easily caused by the staff supporting and fixing the wire frame, thereby ensuring the accuracy of the exploration results as much as possible.

[0023] 2. In the present invention, by setting a fixing device, the position of the placement rod can be fixed after the transient electromagnetic geophysical exploration wire frame rotating device for coal mines is placed at the location to be explored, thereby avoiding the movement of the wire frame during the use of the transient electromagnetic geophysical exploration wire frame rotating device for coal mines as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 This is a schematic structural diagram of the utility model from another angle;

[0026] Figure 3 For this utility model Figure 1 Schematic diagram of the local structure;

[0027] Figure 4 For this utility model Figure 2Schematic diagram of the local structure;

[0028] Figure 5 For this utility model Figure 2 Enlarged view of point A.

[0029] Legend: 1. Placement rod; 2. Crossbar; 3. Protractor; 4. Rotating shaft; 5. Measuring rod; 6. Rotating plate; 7. Wire frame body; 8. Limiting device; 81. Half gear; 82. Mounting rod; 83. Limiting gear; 84. Fixing rod; 85. Connecting plate; 86. First threaded rod; 87. Mounting plate; 88. Rubber pad; 9. Fixing device; 91. Stabilizing plate; 92. Pointed rod; 93. Control plate; 94. Connecting rod; 95. Arc plate; 96. Second threaded rod; 97. Limiting plate; 98. Moving plate. DETAILED DESCRIPTION

[0030] Reference Figure 1 As shown, the utility model provides a technical solution: a transient electromagnetic geophysical detection wire frame rotation device for coal mines, comprising two placing rods 1, the surfaces of the two placing rods 1 are fixedly connected with a cross bar 2, the side of the cross bar 2 is rotatably connected with a protractor 3, the side of the protractor 3 is rotatably connected with a rotating shaft 4, the surface of the rotating shaft 4 is fixedly connected with a measuring rod 5, the side of the measuring rod 5 is fixedly connected with a rotating plate 6, the side of the rotating plate 6 away from the measuring rod 5 is fixedly connected with a wire frame body 7, the side of the protractor 3 away from the wire frame body 7 is provided with a limiting device 8, and the surfaces of the two placing rods 1 are provided with a fixing device 9.

[0031] The specific arrangement and function of the limiting device 8 and the fixing device 9 will be described in detail below.

[0032] Reference Figure 1-Figure 4 As shown, in this embodiment, the limiting device 8 includes a half gear 81, which is fixedly connected to the end of the rotating shaft 4 away from the protractor 3. The side of the protractor 3 near the half gear 81 is fixedly connected to a mounting rod 82, and the other end of the mounting rod 82 is rotatably connected to a limiting gear 83, which meshes with the half gear 81. By providing the mounting rod 82, the limiting gear 83 can be connected to the protractor 3. By limiting the rotation of the limiting gear 83, the rotation of the half gear 81 and the rotating shaft 4 can be limited, thereby limiting the rotation of the wire frame body 7. The side of the protractor 3 near the limiting gear 83 is fixedly connected to a fixing rod 84, and the other end of the fixing rod 84 is fixedly connected to a connecting plate 85. By providing the fixing rod 84, the connecting plate 85 can be connected to the protractor 3, thereby achieving the installation of the connecting plate 85.

[0033] A first threaded rod 86 is threadedly inserted into the inner wall of the connecting plate 85. A mounting plate 87 is fixedly connected to the end of the first threaded rod 86 near the limit gear 83. The first threaded rod 86, threaded into the inner wall of the connecting plate 85, can rotate, thereby moving the mounting plate 87 toward or away from the limit gear 83. A rubber pad 88 is glued to the side of the mounting plate 87 near the limit gear 83. The rubber pad 88 and mounting plate 87 restrict the rotation of the limit gear 83, thereby enhancing the effectiveness of the restriction on the limit gear 83.

[0034] Reference Figure 2 and Figure 5 As shown, specifically, the fixing device 9 includes a movable plate 98, which is mounted on the upper surface of the placement rod 1. A control plate 93 is mounted on the upper surface of the cross bar 2. Two pointed rods 92 are fixedly connected to the lower surfaces of the movable plate 98 and the control plate 93. The surfaces of the four pointed rods 92 are all covered with a stabilizing plate 91, which is fixedly connected to the placement rod 1. By providing the pointed rods 92, the position of the placement rod 1 can be fixed. By providing the stabilizing plate 91, the stability of the pointed rods 92 during movement can be improved. By providing the control plate 93 and the movable plate 98, the movement of the four pointed rods 92 can be synchronously controlled.

[0035] Two connecting rods 94 are fixedly connected to one side of the control plate 93 near the movable plate 98. The other ends of the two connecting rods 94 are fixedly connected to the movable plate 98. A second threaded rod 96 is rotatably connected to the inner wall of the control plate 93. By providing the connecting rods 94, the control plate 93 and the movable plate 98 can be connected, so that when the control plate 93 moves, the movable plate 98 can be driven to move. The end of the second threaded rod 96 away from the control plate 93 is fixedly connected to a limit plate 97. The surface of the second threaded rod 96 is covered with an arc plate 95, which is fixedly connected to the cross bar 2. The second threaded rod 96 is threadedly inserted into the inner wall of the arc plate 95. By rotating the second threaded rod 96, the control plate 93 can be driven to move closer to or away from the arc plate 95. By providing the limit plate 97, the connection between the second threaded rod 96 and the arc plate 95 can be ensured.

[0036] Working principle: when the angle of the wire frame body 7 needs to be adjusted, first rotate the first threaded rod 86 to rotate it on the inner wall of the connecting plate 85, so that the mounting plate 87 and the rubber pad 88 move away from the limit gear 83, and then control the measuring rod 5 to rotate on the surface of the rotating shaft 4, thereby driving the rotating plate 6 and the wire frame body 7 to rotate, and at the same time, the half gear 81 drives the limit gear 83 to rotate to adjust the angle of the wire frame body 7. After the adjustment is completed, rotate the first threaded rod 86 to make the rubber pad 88 move close to the limit gear 83 to limit the rotation of the limit gear 83. By setting the mounting rod 82, the limit gear 83 can be connected to the protractor 3, and the fixing rod 84 can be used to install the connecting plate 85. By setting the limiting device 8, the position of the wire frame body 7 can be fixed after the angle of the wire frame body 7 is adjusted by using the transient electromagnetic geophysical exploration wire frame rotating device for coal mines, thereby avoiding as much as possible the deflection of the wire frame body 7 caused by the support and fixation of the wire frame body 7 by the staff, thereby ensuring the accuracy of the exploration results as much as possible.

[0037] When placing the transient electromagnetic geophysical exploration wire frame rotating device for coal mines, first place the placing rod 1 and the cross bar 2 to the position where the wire frame body 7 needs to be used, then rotate the second threaded rod 96 to make it rotate on the inner wall of the arc plate 95, so that the limit plate 97 moves away from the arc plate 95, and at the same time, the second threaded rod 96 rotates on the inner wall of the control plate 93, driving the control plate 93 so that the control plate 93, the connecting rod 94 and the movable plate 98 move close to the cross bar 2, so that the pointed rod 92 slides on the inner wall of the stabilizing plate 91, thereby fixing the position of the placing rod 1 and the cross bar 2 by the pointed rod 92. By setting the fixing device 9, the position of the placing rod 1 can be fixed after the transient electromagnetic geophysical exploration wire frame rotating device for coal mines is placed at the position to be explored, so that the movement of the wire frame body 7 during the use of the transient electromagnetic geophysical exploration wire frame rotating device for coal mines can be avoided as much as possible.

[0038] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A transient electromagnetic geophysical probe wire frame rotating device for coal mines, comprising two placement rods (1), the surfaces of the two placement rods (1) are fixedly connected to cross bars (2), the side surfaces of the cross bars (2) are rotatably connected to a protractor (3), the side surfaces of the protractor (3) are rotatably connected to a rotating shaft (4), the surface of the rotating shaft (4) is fixedly connected to a measuring rod (5), the side surfaces of the measuring rod (5) are fixedly connected to a rotating plate (6), the side of the rotating plate (6) away from the measuring rod (5) is fixedly connected to a wire frame body (7), and the side of the protractor (3) away from the wire frame body (7) is provided with a limiting device (8), characterized in that: The limiting device (8) comprises a half gear (81), wherein the half gear (81) is fixedly connected to one end of the rotating shaft (4) away from the protractor (3); a mounting rod (82) is fixedly connected to a side of the protractor (3) close to the half gear (81); the other end of the mounting rod (82) is rotatably connected to a limiting gear (83), and the limiting gear (83) is meshed with the half gear (81).

2. The coal mine transient electromagnetic geophysical detection wire frame rotating device according to claim 1, characterized in that: A fixing rod (84) is fixedly connected to one side of the protractor (3) close to the limiting gear (83), and the other end of the fixing rod (84) is fixedly connected to a connecting plate (85).

3. The coal mine transient electromagnetic geophysical detection wire frame rotating device according to claim 2, characterized in that: A first threaded rod (86) is threadedly inserted into the inner wall of the connecting plate (85), and one end of the first threaded rod (86) close to the limiting gear (83) is fixedly connected to a mounting plate (87).

4. The coal mine transient electromagnetic geophysical detection wire frame rotating device according to claim 3, characterized in that: A rubber pad (88) is glued to one side of the mounting plate (87) close to the limiting gear (83).

5. The coal mine transient electromagnetic geophysical detection wire frame rotating device according to claim 1, characterized in that: The surfaces of the two placement rods (1) are provided with fixing devices (9), and the fixing devices (9) include a movable plate (98), and the movable plate (98) is installed on the upper surface of the placement rod (1). The upper surface of the cross bar (2) is installed with a control plate (93), and the lower surfaces of the movable plate (98) and the control plate (93) are fixedly connected to two pointed rods (92), and the surfaces of the four pointed rods (92) are all covered with stabilizing plates (91), and the stabilizing plates (91) are fixedly connected to the placement rod (1).

6. The coal mine transient electromagnetic geophysical detection wire frame rotating device according to claim 5, characterized in that: Two connecting rods (94) are fixedly connected to one side of the control plate (93) close to the movable plate (98), and the other ends of the two connecting rods (94) are fixedly connected to the movable plate (98). The inner wall of the control plate (93) is rotatably connected to a second threaded rod (96).

7. The coal mine transient electromagnetic geophysical detection wire frame rotating device according to claim 6, characterized in that: One end of the second threaded rod (96) away from the control plate (93) is fixedly connected to the limiting plate (97); the surface of the second threaded rod (96) is covered with an arc plate (95); the arc plate (95) is fixedly connected to the cross bar (2); and the second threaded rod (96) is threadedly inserted into the inner wall of the arc plate (95).

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