A coal mine drilling positioning device

Abstract

The utility model relates to the technical field of coal mine drilling, and specifically discloses a coal mine drilling positioning device, which comprises a supporting mechanism, the supporting mechanism comprises a frame, an avoiding groove is formed on the opposite surface of the frame, a lifting mechanism is arranged on the frame, a positioning mechanism for limiting and supporting a drill rod is arranged on the lifting mechanism, the lifting mechanism comprises a lifting frame, the lifting frame is fixedly connected with the positioning mechanism, the positioning mechanism comprises a fixing disc fixed on the lifting frame, and the fixing disc is oppositely arranged on the front and back sides. Through the arrangement of the lifting mechanism and the positioning mechanism, the lifting mechanism moves up and down on the fixing mechanism, the drill rod passes through the center hole of the fixing disc and the rotating disc at the center position of the fixing disc, the rotating disc is driven to rotate through the adjusting assembly, the limiting rod and the sliding seat move to the center position under the limitation of the arc-shaped groove of the rotating disc and the vertical groove of the fixing disc respectively, the positioning column is abutted on the outer diameter of the drill rod, and the stability of the drill rod in the rotating process and the drilling effect are ensured.

Description

Technical Field

[0001] This utility model relates to the field of coal mine drilling technology, and in particular to a coal mine drilling positioning device. Background Technology

[0002] Coal mines are areas where humans extract coal resources from coal-rich areas, generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, underground tunnels are typically dug to extract the coal; this is called an underground coal mine. When the coal seam is very close to the surface, the surface soil layer is typically stripped away to extract the coal; this is called an open-pit coal mine. During drilling in a coal mine, if the end of the drill rod is far from the drilling rig when it extends into the ore seam, the drill rod may swing during rotation, thus affecting the drilling efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a coal mine drilling positioning device to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions: A coal mine drilling positioning device includes a support mechanism, which includes a frame. A clearance groove is provided on the opposite surface of the frame. A lifting mechanism is installed on the frame. The lifting mechanism includes a positioning mechanism for limiting and supporting the drill rod. The lifting mechanism includes a lifting frame, which is fixedly connected to the positioning mechanism. The positioning mechanism includes a fixed plate fixed to the lifting frame. The front and rear sides of the fixed plate are arranged opposite each other, and a rotating plate is rotatably mounted between the fixed plates. A through hole is provided through the center of the rotating plate and the fixed plate. A circular arc-shaped groove is evenly distributed around the circumference of the rotating plate. A vertical groove corresponding to the arc-shaped groove is provided through the fixed plate. Limiting components are installed in the vertical groove and the arc-shaped groove. The limiting components include a limiting rod installed in the arc-shaped groove. Sliding seats are provided at both ends of the limiting rod. A positioning post passing through the through hole inside the fixed plate is fixed on the sliding seat. An adjustment component is provided on the rotating plate to support its rotation.

[0005] Further configuration: The adjustment assembly includes a worm gear ring fixed on the outer diameter of the rotating disk, a second worm gear meshing with the worm gear ring on the lifting frame, and a handwheel at the end of the second worm gear.

[0006] Further configuration: The second worm gear is rotatably connected to the lifting frame.

[0007] Further details: The limiting rod is slidably connected to the arc-shaped groove, the sliding seat is slidably connected to the vertical groove, and the positioning column is slidably connected to the fixed plate.

[0008] Further configuration: The lifting mechanism also includes a lead screw and a slide column vertically mounted on the frame. The lifting frame is mounted on the lead screw and the slide column. A lifting worm gear is fixed at the upper end of the lead screw. A first worm is engaged on one side of the lifting worm gear. A handwheel is fixed at one end of the first worm.

[0009] Further configuration: the lead screw is rotatably connected to the frame, the lead screw is threadedly connected to the lifting frame, the sliding column is slidably connected to the lifting frame, and the first worm gear is rotatably connected to the frame.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up lifting and positioning mechanisms, the lifting mechanism moves the fixed mechanism up and down. The drill rod is positioned at the center of the fixed plate and passes through the center hole of the fixed plate and the rotating plate. The rotating plate is rotated by adjusting the components, so that the limiting rod and the sliding seat move towards the center position under the limiting of the arc groove of the rotating plate and the vertical groove of the fixed plate, respectively. The positioning pin is placed against the outer diameter of the drill rod to ensure the stability of the drill rod during rotation and the drilling effect. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the coal mine drilling positioning device described in this utility model; Figure 2 This is a schematic diagram of the structure of some parts of the coal mine drilling positioning device described in this utility model; Figure 3 This is a half-sectional structural diagram of the positioning mechanism of the coal mine drilling positioning device described in this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the positioning mechanism of the coal mine drilling positioning device described in this utility model.

[0013] The annotations in the attached figures are explained as follows: 11. Frame; 12. Clearance groove; 21. Lead screw; 22. Sliding column; 23. Lifting frame; 24. Lifting worm gear; 25. First worm; 31. Fixed plate; 311. Vertical groove; 32. Rotating plate; 321. Arc groove; 33. Worm gear ring; 34. Second worm; 35. Limiting rod; 36. Sliding seat; 37. Positioning column. Detailed Implementation

[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-4 As shown, a coal mine drilling positioning device includes a support mechanism, which includes a frame 11. An avoidance groove 12 is provided on the opposite surface of the frame 11. A lifting mechanism is provided on the frame 11, and a positioning mechanism for limiting and supporting the drill rod is provided on the lifting mechanism. In this embodiment: the lifting mechanism includes a lifting frame 23, which is fixedly connected to the positioning mechanism. The lifting mechanism also includes a lead screw 21 and a sliding column 22 vertically mounted on the frame 11. The lifting frame 23 is mounted on the lead screw 21 and the sliding column 22. A lifting worm gear 24 is fixed to the upper end of the lead screw 21. A first worm 25 is meshed on one side of the lifting worm gear 24. A handwheel is fixed to one end of the first worm 25. The lead screw 21 is rotatably connected to the frame 11 and threadedly connected to the lifting frame 23. The sliding column 22 is slidably connected to the lifting frame 23. The first worm 25 is rotatably connected to the frame 11. By rotating the first worm 25 to mesh with the lifting worm gear 24, the lifting worm gear 24 drives the lead screw 21 to rotate. The lead screw 21 pushes the lifting frame 23 to move up and down under the support of the sliding column 22, so that the height of the positioning mechanism matches the height of the drill rod.

[0017] In this embodiment: the positioning mechanism includes a fixed plate 31 fixed on the lifting frame 23. The front and rear sides of the fixed plate 31 are arranged opposite each other, and a rotating plate 32 is rotatably arranged between the fixed plates 31. A through hole is opened through the center of the rotating plate 32 and the fixed plate 31. The rotating plate 32 has a through arc-shaped groove 321 evenly distributed around its circumference. The fixed plate 31 has a vertical groove 311 that is opposite to the arc-shaped groove 321. Limiting components are installed in the vertical groove 311 and the arc-shaped groove 321. The limiting components include a limiting rod 35 set in the arc-shaped groove 321. Sliding seats 36 are set at both ends of the limiting rod 35. A positioning post 37 that passes through the through hole inside the fixed plate 31 is fixed on the sliding seat 36. An adjustment component is set on the rotating plate 32 to support the rotation of the rotating plate 32. The limiting rod 35 is slidably connected to the arc-shaped groove 321, the sliding seat 36 is slidably connected to the vertical groove 311, and the positioning post 37 is slidably connected to the fixed plate 31. The adjustment assembly includes a worm gear ring 33 fixed on the outer diameter of the rotating disk 32, and a second worm 34 meshing with the worm gear ring 33 on the lifting frame 23. A handwheel is provided at the end of the second worm 34. The second worm 34 is rotatably connected to the lifting frame 23. When the drill rod passes through the center hole of the fixed disk 31 and the rotating disk 32, and the drill rod is at the center position of the fixed disk 31, the second worm 34 is rotated to mesh with the worm gear ring 33 and rotate, which drives the rotating disk 32 to rotate. This causes the limiting rod 35 and the sliding seat 36 to move towards the center position under the limiting of the arc groove 321 of the rotating disk 32 and the vertical groove 311 of the fixed disk 31, respectively, so that the positioning post 37 is pressed against the outer diameter of the drill rod.

[0018] The working principle and usage process of this utility model are as follows: The frame 11 is placed between the drilling machine and the coal seam. The first worm 25 is rotated and meshes with the lifting worm wheel 24, causing the lifting worm wheel 24 to drive the lead screw 21 to rotate. The lead screw 21 pushes the lifting frame 23 to move up and down under the support of the sliding column 22, so that the drill rod passes through the center hole of the fixed plate 31 and the rotating plate 32. The drill rod is located at the center position of the fixed plate 31. The second worm 34 is rotated and meshes with the worm wheel ring 33, causing the rotating plate 32 to rotate. The limiting rod 35 and the sliding seat 36 move towards the center position under the limiting of the arc groove 321 of the rotating plate 32 and the vertical groove 311 of the fixed plate 31, respectively. The positioning column 37 is pressed against the outer diameter of the drill rod to ensure the stability of the drill rod during rotation.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A coal mine drilling positioning device, comprising a support mechanism, the support mechanism comprising a frame (11), wherein clearance grooves (12) are provided on opposite surfaces of the frame (11), characterized in that: A lifting mechanism is provided on the frame (11), and a positioning mechanism for limiting and supporting the drill rod is provided on the lifting mechanism. The lifting mechanism includes a lifting frame (23), which is fixedly connected to the positioning mechanism. The positioning mechanism includes a fixed plate (31) fixed on the lifting frame (23). The front and rear sides of the fixed plate (31) are arranged opposite to each other. A rotating plate (32) is rotatably arranged between the fixed plates (31). A through hole is opened through the center of the rotating plate (32) and the fixed plate (31). A through arc is evenly distributed around the circumference of the rotating plate (32). The fixed disk (31) has a vertical groove (311) that is opposite to the arc groove (321) through it. Limiting components are installed in the vertical groove (311) and the arc groove (321). The limiting components include a limiting rod (35) set in the arc groove (321). Sliding seats (36) are provided at both ends of the limiting rod (35). A positioning post (37) that passes through the inner through hole of the fixed disk (31) is fixed on the sliding seat (36). An adjustment component is provided on the rotating disk (32) to support the rotation of the rotating disk (32).

2. The coal mine drilling positioning device according to claim 1, characterized in that: The adjustment assembly includes a worm gear ring (33) fixed on the outer diameter of the rotating disk (32), and a second worm (34) meshing with the worm gear ring (33) is provided on the lifting frame (23), with a handwheel provided at the end of the second worm (34).

3. The coal mine drilling positioning device according to claim 2, characterized in that: The second worm (34) is rotatably connected to the lifting frame (23).

4. The coal mine drilling positioning device according to claim 1, characterized in that: The limiting rod (35) is slidably connected to the arc groove (321), the sliding seat (36) is slidably connected to the vertical groove (311), and the positioning column (37) is slidably connected to the fixed plate (31).

5. The coal mine drilling positioning device according to claim 1, characterized in that: The lifting mechanism also includes a lead screw (21) and a slide column (22) vertically arranged on the frame (11). The lifting frame (23) is installed on the lead screw (21) and the slide column (22). A lifting worm gear (24) is fixed at the upper end of the lead screw (21). A first worm (25) is engaged on one side of the lifting worm gear (24). A handwheel is fixed at one end of the first worm (25).

6. The coal mine drilling positioning device according to claim 5, characterized in that: The lead screw (21) is rotatably connected to the frame (11), the lead screw (21) is threadedly connected to the lifting frame (23), the sliding column (22) is slidably connected to the lifting frame (23), and the first worm (25) is rotatably connected to the frame (11).

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