A kind of auxiliary orientation device for tunneling support
Patent Information
- Application Number
- CN202522413099.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-13
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-13
AI Technical Summary
[0002]掘进工作面在割煤作业和支护作业过程中通过工作面的激光指向仪确定巷道前进方向，即俗称的“巷道中线”，在锚网支护或架棚支护作业时，激光指向仪仅能确定钢筋顶托梁或工字钢梁左右位置，不能确定钢筋顶托梁或工字钢梁两端在巷道前、后位置，会出现倾斜情况；在巷道支护过程中要求顶钢带必须与巷道前进方向平行，与巷帮垂直；实际掘进过程中，现场作业人员通过现场测量或者现场观测的方式确定钢带位置，由于巷道顶板不平整和作业人员观测方式不正确，顶板钢筋托梁存在钢筋顶托梁倾斜情况；因此，需根据上述问题进行改进处理
[0010]与现有技术相比，本实用新型的有益效果是：在本实用新型中，通过激光指向仪与分束棱镜的配合，便于同时确定钢筋顶托梁或工字钢梁的左右位置与前后位置，从而解决现有技术中激光指向仪仅能确定左右位置、易导致顶托梁倾斜的问题，进而保障顶钢带与巷道前进方向平行、与巷帮垂直，满足巷道支护的规范要求；通过激光指向仪的调节组件与分束棱镜的调节组件之间的配合，便于使激光指向仪与分束棱镜精准处于同一轴线和同一高度，从而解决现有技术中定向装置调节不便、难以适配矿洞实际工况的问题，进而提升掘进支护定向的精度与灵活性。
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Figure CN224873033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of support and directional tools, and in particular to an auxiliary directional device for tunneling support. Background Technology
[0002] During coal cutting and support operations at the tunneling face, a laser pointer is used to determine the direction of the roadway's advance, commonly known as the "roadway centerline." However, during anchor mesh support or canopy support operations, the laser pointer can only determine the left and right positions of the steel reinforcement top support beams or I-beams, not their positions at the front and rear of the roadway, leading to tilting. During roadway support, the roof steel strip is required to be parallel to the roadway's advance direction and perpendicular to the roadway walls. In actual tunneling, on-site personnel determine the steel strip position through on-site measurement or observation. Due to uneven roadway roofs and incorrect observation methods, the roof steel reinforcement top support beams may tilt. Therefore, improvements are needed to address these issues. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an auxiliary directional device for tunneling support.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: an auxiliary orientation device for tunneling support, comprising a laser pointer, a beam splitter prism at the front end of the laser pointer, multiple equidistant anchor rods at the upper end of the laser pointer and the beam splitter prism, thin ropes connected to the lower ends of the middle portion of the multiple anchor rods, and calibration plumb bobs connected to the lower ends of the thin ropes; the laser pointer and the beam splitter prism are installed on the roof of the mine via the anchor rods; an adjustment assembly is provided between the laser pointer and the beam splitter prism and the anchor rods.
[0005] Preferably, the adjustment assembly includes a mounting base installed on the outside of the laser pointer, the upper side of the mounting base has a first positioning groove, and the top surface of the mounting base is threaded with a first screw, the lower end of the first screw is placed in the first positioning groove, and the lower end of the first screw is rotatably connected to a first positioning block.
[0006] Preferably, a connecting rod is provided laterally in the first positioning groove. The connecting rod abuts against the inner wall of the first positioning groove and the first positioning block. A positioning cylinder is installed at one end of the connecting rod. A second screw is threadedly connected to one side of the positioning cylinder. The other end of the second screw is placed inside the positioning cylinder and is rotatably connected to the second positioning block.
[0007] Preferably, the positioning cylinder is connected to the anchor rod at the upper end of the laser pointer via a second screw and a second positioning block.
[0008] Preferably, the adjustment assembly further includes an L-shaped plate installed on the top surface of the beam splitter prism. The rear end of the top surface of the L-shaped plate is provided with a second positioning groove, and the rear end of the L-shaped plate is threadedly connected to a third screw. The front end of the third screw is placed in the second positioning groove, and the front end of the third screw is rotatably connected to a third positioning block.
[0009] Preferably, the L-shaped plate is connected to the anchor rod at the upper end of the beam splitter prism via a second positioning groove, a third screw, and a third positioning block.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the laser pointer and the beam splitter prism facilitates the simultaneous determination of the left-right and front-back positions of the steel reinforcement top support beam or I-beam, thereby solving the problem that the laser pointer in the prior art can only determine the left-right position and is prone to causing the top support beam to tilt. This ensures that the top steel strip is parallel to the roadway's forward direction and perpendicular to the roadway sidewall, meeting the specifications for roadway support. The cooperation between the adjustment components of the laser pointer and the beam splitter prism makes it easy to ensure that the laser pointer and the beam splitter prism are precisely aligned on the same axis and at the same height. This solves the problem that the orientation device in the prior art is inconvenient to adjust and difficult to adapt to the actual working conditions of the mine, thereby improving the accuracy and flexibility of tunneling support orientation. Attached Figure Description
[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model; Figure 2 This is a schematic diagram showing the connection between the anchor rod, thin rope, and calibration plumb proposed in this utility model. Figure 3 This is a schematic diagram showing the connection between the laser pointer and the adjustment component proposed in this utility model; Figure 4 This is a cross-sectional schematic diagram of the laser pointer and adjustment component proposed in this utility model; Figure 5 This is a schematic diagram showing the connection between the beam splitter prism and the adjustment component proposed in this utility model.
[0012] The numbers in the diagram are: 1. Laser pointer; 2. Beam splitter prism; 3. Anchor bolt; 4. String; 5. Calibration pendant; 6. Mounting base; 7. First positioning groove; 8. First screw; 9. First positioning block; 10. Connecting rod; 11. Positioning cylinder; 12. Second screw; 13. Second positioning block; 14. L-shaped plate; 15. Second positioning groove; 16. Third screw; 17. Third positioning block. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] Example: See Figures 1 to 5 This utility model discloses an auxiliary orientation device for tunneling support, comprising a laser pointer 1, a beam splitter prism 2 at the front end of the laser pointer 1, and multiple equidistant anchor rods 3 at the upper ends of the laser pointer 1 and the beam splitter prism 2. A thin rope 4 is connected to the lower end of the middle portion of the anchor rods 3, and a calibration plumb bob 5 is connected to the lower end of the thin rope 4. The laser pointer 1 and the beam splitter prism 2 are installed on the mine roof via the anchor rods 3. An adjustment assembly is provided between the laser pointer 1 and the beam splitter prism 2 and the anchor rods 3. The laser pointer 1 facilitates the provision of basic orientation laser signals, providing a core reference for orientation operations in tunneling support. The beam splitter prism 2... The system facilitates beam splitting of the laser emitted by the laser pointer 1, expanding the directional coverage area and assisting in multi-directional directional calibration. The anchor rod 3 facilitates stable installation and fixation of the device. The thin rope 4 facilitates connection of the calibration pendant 5. The calibration pendant 5 facilitates calibration of the device's installation position using the principle of gravity. The adjustment component includes a mounting base 6 installed on the outside of the laser pointer 1. The upper side of the mounting base 6 has a first positioning groove 7, and the top surface of the mounting base 6 is threaded with a first screw 8. The lower end of the first screw 8 is placed in the first positioning groove 7, and the lower end of the first screw 8 is rotatably connected to a first positioning block 9.
[0015] In this invention, a connecting rod 10 is horizontally arranged inside the first positioning groove 7. The connecting rod 10 abuts against the inner wall of the first positioning groove 7 and the first positioning block 9. A positioning cylinder 11 is installed at one end of the connecting rod 10. A second screw 12 is threadedly connected to one side of the positioning cylinder 11. The other end of the second screw 12 is placed inside the positioning cylinder 11 and is rotatably connected to the second positioning block 13. The mounting base 6 facilitates the installation of the laser pointer 1. The first positioning groove 7 facilitates the adjustment of the vertical angle and height of the laser pointer 1. The first screw 8 and the first positioning block 9 facilitate the fixing of the angle and height of the laser pointer 1. The connecting rod 10 facilitates the connection of the mounting base 6. The positioning cylinder 11 facilitates the connection of the anchor rod 3. The second screw 12 and the second positioning block 13 facilitate the fixing of the horizontal position of the laser pointer 1. Angle; the positioning cylinder 11 is connected to the anchor rod 3 at the upper end of the laser pointer 1 via the second screw 12 and the second positioning block 13; the adjustment assembly also includes an L-shaped plate 14 installed on the top surface of the beam splitter prism 2, the rear end of the top surface of the L-shaped plate 14 is provided with a second positioning groove 15, and the rear end of the L-shaped plate 14 is threadedly connected to a third screw 16, the front end of the third screw 16 is placed in the second positioning groove 15, and the front end of the third screw 16 is rotatably connected to a third positioning block 17; the setting of the L-shaped plate 14 facilitates the installation of the beam splitter prism 2 and the connection of the anchor rod 3; the setting of the second positioning groove 15 facilitates the adjustment of the horizontal angle and height of the beam splitter prism 2; the setting of the third screw 16 and the third positioning block 17 facilitates the fixing of the angle and height of the beam splitter prism 2; the L-shaped plate 14 is connected to the anchor rod 3 at the upper end of the beam splitter prism 2 via the second positioning groove 15, the third screw 16 and the third positioning block 17.
[0016] Working principle: When using this utility model, firstly, before excavation, the centerline position is determined at the cutting point and the excavation direction using a total station. Based on the centerline position, the calibration plumb bob 5 and the beam splitter prism 2 are installed. When installing the beam splitter prism 2, the third screw 16 is rotated, connecting to the L-shaped plate 14 via a threaded connection. This controls the movement of the third positioning block 17, thereby clamping the anchor rod 3 into the second positioning groove 15 of the L-shaped plate 14, thus connecting the beam splitter prism 2 to the anchor rod 3. Then, the laser pointer 1 is connected to the anchor rod 3 via the first screw 8, the first positioning block 9, the second screw 12, and the second positioning block 13. The laser pointer 1 is then activated, and the laser pointer is adjusted. The first screw 8 is rotated to move the first positioning block 9 within the first positioning groove 7, thereby controlling the tightness of the connecting rod 10 within the first positioning groove 7. When the tension is relatively loose, the laser pointer 1 can be rotated vertically, and the second screw 12 can be rotated to move the second positioning block 13 within the positioning cylinder 11, thereby controlling the tightness of the anchor rod 3 within the positioning cylinder 11. When the tension is relatively loose, the laser pointer 1 can be rotated horizontally. When the laser pointer 1 and the beam splitter prism 2 are on the same axis and at the same height, the laser pointer 1 emits the laser required for tunneling support orientation. The laser is transmitted to the beam splitter prism 2 and then split into multiple beams, thereby expanding the orientation coverage area.
[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An auxiliary orientation device for tunneling support, comprising a laser pointer (1), characterized in that: The laser pointer (1) is equipped with a beam splitter prism (2) at its front end. Multiple equidistant anchor rods (3) are provided at the upper end of the laser pointer (1) and the beam splitter prism (2). The lower end of the middle multiple anchor rods (3) is connected to a thin rope (4). The lower end of the thin rope (4) is connected to a calibration pendant (5). The laser pointer (1) and the beam splitter prism (2) are installed on the top of the mine through the anchor rods (3). An adjustment component is provided between the laser pointer (1) and the beam splitter prism (2) and the anchor rods (3).
2. The auxiliary directional device for tunneling support according to claim 1, characterized in that: The adjustment assembly includes a mounting base (6) installed on the outside of the laser pointer (1). The upper side of the mounting base (6) is provided with a first positioning groove (7), and the top surface of the mounting base (6) is threaded with a first screw (8). The lower end of the first screw (8) is placed in the first positioning groove (7), and the lower end of the first screw (8) is rotatably connected to a first positioning block (9).
3. The auxiliary directional device for tunneling support according to claim 2, characterized in that: A connecting rod (10) is provided horizontally inside the first positioning groove (7). The connecting rod (10) abuts against the inner wall of the first positioning groove (7) and the first positioning block (9). A positioning cylinder (11) is installed at one end of the connecting rod (10). A second screw (12) is threadedly connected to one side of the positioning cylinder (11). The other end of the second screw (12) is placed inside the positioning cylinder (11). A second positioning block (13) is rotatably connected to the other end of the second screw (12).
4. The auxiliary directional device for tunneling support according to claim 3, characterized in that: The positioning cylinder (11) is connected to the anchor rod (3) at the upper end of the laser pointer (1) via the second screw (12) and the second positioning block (13).
5. The auxiliary directional device for tunneling support according to claim 1, characterized in that: The adjustment assembly also includes an L-shaped plate (14) installed on the top surface of the beam splitter (2). The rear end of the top surface of the L-shaped plate (14) is provided with a second positioning groove (15), and the rear end of the L-shaped plate (14) is threadedly connected to a third screw (16). The front end of the third screw (16) is placed in the second positioning groove (15), and the front end of the third screw (16) is rotatably connected to a third positioning block (17).
6. The auxiliary directional device for tunneling support according to claim 5, characterized in that: The L-shaped plate (14) is connected to the anchor rod (3) at the upper end of the beam splitter (2) through the second positioning groove (15), the third screw (16) and the third positioning block (17).