Mine track calibrator
By using an infrared laser pointer and a level, the mine track calibrator enables efficient and high-precision mine track installation by a single person, solving the problem of cumbersome and error-prone track laying under multi-person operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-03-13
AI Technical Summary
The existing mine track installation process requires multiple people to work together, is cumbersome and prone to errors, making it difficult to achieve high-precision and efficient track laying.
The mine track calibrator uses a combination of an infrared laser pointer and a level. The infrared laser pointer corrects the track direction, the level corrects the flatness, and the wheel width determines the track gauge, enabling single-person operation and high-precision track installation.
It enables single-person operation, reduces labor costs, improves the accuracy and efficiency of track installation, reduces repeated adjustments, and meets various standard requirements.
Smart Images

Figure CN223991219U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mine track construction, and in particular to a mine track calibrator. Background Technology
[0002] In my country's existing mine transportation systems, belt conveyors and rail transport are the primary methods. Currently, the reverse centerline method is used for rail installation in roadways. This method involves tracing the track backward from a point provided by geological surveying to confirm the track's placement. The reverse centerline method is used to determine the track's forward and backward direction and flatness, ensuring the track's centerline coincides with the roadway's centerline. This guarantees accurate track positioning and prevents deviations or skew. However, this reverse centerline method requires multiple people. One person stands at the point of origin, using a three-point alignment to direct the track maintenance personnel to adjust the track's position. Due to distance constraints, at least three maintenance personnel and a line watcher are needed to coordinate: one directs, and the other two adjust the track. This process is cumbersome and prone to errors. Utility Model Content
[0003] This utility model provides a mine track calibrator, which improves the accuracy and efficiency of track installation in roadways.
[0004] This utility model discloses a mine track calibrator, which adopts the following technical solution:
[0005] A mine track calibrator includes a main frame, a spirit level, and an infrared laser pointer. The main frame includes a base plate, with a first wheel axle and a second wheel axle mounted below the base plate. First wheels are mounted on both ends of the first wheel axle, and second wheels are mounted on both ends of the second wheel axle. The distance between the inner edges of the two first wheels is the distance between the two tracks. A mounting groove is provided on the base plate, and the spirit level is fixed in the mounting groove. A guide rail is mounted above the base plate, and a movable block is slidably connected to the guide rail. The infrared laser pointer is fixed on the movable block.
[0006] Furthermore, a braking assembly is provided on the base plate to prevent the first wheel axle from rotating.
[0007] Furthermore, the braking assembly includes a brake block, a connecting rod, and a connecting block. The brake block is located between the first wheel axle and the base plate. The bottom of the connecting rod is fixed to the brake block, and the top of the connecting rod passes through the base plate and is fixed to the connecting block. A spring is fixed between the connecting block and the top plate, and the spring is sleeved on the connecting rod. A pressure block is rotatably connected to the base plate, and the pressure block can press against the connecting block.
[0008] Furthermore, a mounting rod is fixed on the base plate, one end of the pressure block is rotatably connected to the mounting rod, a locking nut is threaded onto the mounting rod, and the pressure block is located below the locking nut.
[0009] Furthermore, limit blocks are fixed on both sides of the movable block, and sliders are fixed on the side of the limit blocks near the guide rail. The guide rail is provided with a sliding groove for the sliders to slide.
[0010] Furthermore, the movable block is equipped with a clamping bolt, which can fix the position of the movable block on the guide rail.
[0011] Compared with the prior art, the present invention has the following technical effects:
[0012] Compared to methods for determining track direction and flatness using reverse lines, this invention's device and method require only one operator, reducing labor costs. It utilizes an infrared laser pointer to correct the track, ensuring all indicators meet standard requirements. Correction is completed section by section in a single operation, eliminating the need for repeated adjustments. The infrared laser pointer and level determine track straightness and flatness, while the wheel width determines the track gauge, resulting in high track installation precision. Attached Figure Description
[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of it, do not constitute a limitation thereof. In the drawings:
[0014] Figure 1 This is a schematic diagram illustrating the overall structure of the present invention;
[0015] Figure 2 A schematic diagram illustrating the braking assembly in this utility model;
[0016] Figure 3 This is a schematic diagram illustrating the movable block and infrared laser pointer in this utility model.
[0017] Explanation of reference numerals in the attached drawings: 1. Main frame; 11. Base plate; 12. First fixing block; 121. Shaft hole; 13. Second fixing block; 14. First wheel axle; 15. First wheel; 16. Second wheel axle; 17. Second wheel; 2. Braking assembly; 21. Brake block; 22. Connecting rod; 23. Connecting block; 24. Spring; 25. Mounting rod; 26. Pressure block; 27. Locking nut; 3. Mounting groove; 31. Level; 4. Support block; 41. Guide rail; 411. Slide groove; 42. Moving block; 421. Limiting block; 422. Sliding block; 43. Tightening bolt; 44. Infrared laser pointer; 5. Handle. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.
[0019] Reference Figure 1 , Figure 2 and Figure 3 A mine track calibrator includes a main frame 1, which includes a base plate 11. Two first fixing blocks 12 and two second fixing blocks 13 are fixed to the bottom of the base plate 11. Each of the two first fixing blocks 12 has a shaft hole 121. A first wheel axle 14 is mounted on each of the two first fixing blocks 12, passing through the shaft hole 121. First wheels 15 are mounted at both ends of each first wheel axle 14.
[0020] Two second fixing blocks 13 are also provided with axle holes 121, and second wheel axles 16 are provided on the second fixing blocks 13, passing through the second axle holes 121. Second wheels 17 are installed at both ends of the second wheel axles 16.
[0021] A braking assembly 2 is provided on the base plate 11 to prevent the first wheel axle 14 from rotating. The braking assembly 2 includes a brake block 21, a connecting rod 22 and a connecting block 23. The brake block 21 is located between the first wheel axle 14 and the base plate 11. The connecting rod 22 is fixed above the brake block 21 and extends upward through the base plate 11. The top of the connecting rod 22 is fixed to the connecting block 23. A spring 24 is fixed between the connecting block 23 and the base plate 11. The spring 24 is sleeved on the connecting rod 22.
[0022] A mounting rod 25 is provided above the base plate 11. The mounting rod 25 is located on one side of the connecting rod 22, and its bottom is fixed to the base plate 11. The mounting rod 25 is a threaded rod, and a pressure block 26 is rotatably connected to the mounting rod 25. A locking nut 27 is provided above the pressure block 26, and the locking nut 27 is threadedly connected to the mounting rod 25. By rotating the pressure block 26, the pressure block 26 is rotated above the connecting block 23, and the pressure block 26 can press against the connecting block 23.
[0023] When the calibrator needs to be stopped, press down on the connecting block 23 to compress the spring 24, causing the brake block 21 to press against the first wheel axle 14, thereby preventing the first wheel axle 14 from rotating. Rotate the pressure block 26 to press it against the connecting block 23, thereby preventing the connecting block 23 from moving upward. The width between the two first wheels 15 is the same as the width between the two second wheels 17, and the width of the inner edge of the two first wheels 15 is the same as the spacing between the two tracks.
[0024] A mounting groove 3 is provided on the base plate 11, which is set along the length of the base plate 11. A spirit level 31 is fixed in the mounting groove 3, and both ends of the spirit level 31 are kept horizontal. When calibrating the track, the base plate 11 is pushed to move along the track, and the bubble state of the spirit level 31 in front is observed. If the bubble moves to one side, it indicates that the track is not level. The track is adjusted until the bubble returns to the center. At this time, the track gauge, direction, and flatness of the tested track have all met the standard requirements, and the track section can be reinforced to determine that it is a qualified track.
[0025] Two support blocks 4 are fixed to the upper surface of the base plate 11, located at opposite ends of the base plate 11. Guide rails 41, with rectangular cross-sections, are fixed to the support blocks 4. Moving blocks 42 are slidably connected to the guide rails 41. Limiting blocks 421 are fixed to both sides of the moving blocks 42. Sliding grooves 411 are formed on the sidewalls of the guide rails 41. Sliding sliders 422 are fixed to the sidewalls of the limiting blocks 421, and are slidably connected to the sliding grooves 411. A clamping bolt 43 is provided on the moving block 42, threadedly connected to it. The clamping bolt 43 passes through the moving block 42 and clamps against the guide rail 41. An infrared laser pointer 44 is fixed to the moving block 42.
[0026] This device uses an infrared laser pointer 44 to determine the track laying direction, and the first wheel 15 to correct the track gauge of the two tracks; the level 31 at the front corrects the flatness of the two tracks. This device has a simple structure and high precision, reducing the number of operators, effectively preventing repeated measurements, and improving accuracy, greatly increasing track construction efficiency and laying a solid foundation for the safe and efficient development of the mine.
[0027] This utility model also discloses a method for using a mine track calibrator, including the following steps:
[0028] S1. Place the main frame 1 on the track to be constructed, use the infrared laser pointer 44 to illuminate it from the front and back to determine the direction in which the main frame 1 is facing the track to be constructed, use the spirit level 31 to drive the main frame 1 to be horizontal, and the width of the two first wheels 15 is the width of the track to be constructed.
[0029] S2. After the main frame 1 is adjusted to be stable, the main frame 1 is fixed by the braking component 2, and then the track is laid according to the direction of the infrared laser pointer 44.
[0030] S3. After the track is laid, the operator holds the handle 5 and moves along the track construction direction. By observing the distance between the two first wheels 15, the track gauge can be determined to be qualified. If it is not qualified, it should be adjusted according to the wheel width immediately.
[0031] S4. During the forward movement of the operator, observe the state of the bubble in the level ruler 31. If the bubble shifts to one side, it indicates that the track is not level. Adjust the track until the bubble returns to the middle position of the level ruler 31.
[0032] S5. Once the gauge, orientation, and flatness of the track have met the standard requirements, the track section can be reinforced.
[0033] S6. The operator pushes the main frame 1 to the end of the fixed track to prepare for laying the next section of track, and then repeats the above steps.
[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.
Claims
1. A mine track aligner, characterised in that, The utility model relates to a laser pointer device for track, which comprises a main frame (1), a level (31) and an infrared laser pointer (44), the main frame (1) comprises a bottom plate (11), a first wheel shaft (14) and a second wheel shaft (16) are installed below the bottom plate (11), the first wheel shaft (14) is provided with a first wheel (15) at both ends, the second wheel shaft (16) is provided with a second wheel (17) at both ends, the distance between the inner sides of the two first wheels (15) is the distance between the two tracks, the bottom plate (11) is provided with a mounting groove (3), the level (31) is fixed in the mounting groove (3), the bottom plate (11) is provided with a guide rail (41) above, the guide rail (41) is slidably connected with a moving block (42), and the infrared laser pointer (44) is fixed on the moving block (42).
2. A mine track aligner according to claim 1, characterised in that, The bottom plate (11) is provided with a brake assembly (2) for preventing the first wheel shaft (14) from rotating.
3. The mine rail aligner of claim 1, wherein, The brake assembly (2) comprises a brake block (21), a connecting rod (22) and a connecting block (23), the brake block (21) is located between the first wheel shaft (14) and the bottom plate (11), the bottom of the connecting rod (22) is fixed with the brake block (21), the top of the connecting rod (22) penetrates through the bottom plate (11) and is fixed with the connecting block (23), the connecting block (23) is fixed with a spring (24) between the top plate, the spring (24) is sleeved on the connecting rod (22), the bottom plate (11) is rotatably connected with a pressing block (26), and the pressing block (26) can abut against the connecting block (23).
4. A mine track aligner according to claim 3, characterised in that, The bottom plate (11) is fixed with a mounting rod (25), one end of the pressing block (26) is rotatably connected with the mounting rod (25), the mounting rod (25) is threadedly connected with a locking nut (27), and the pressing block (26) is located below the locking nut (27).
5. The mine rail aligner of claim 1, wherein, The moving block (42) is fixed with a limiting block (421) on both sides, the limiting block (421) is fixed with a sliding block (422) on the side close to the guide rail (41), and the guide rail (41) is provided with a sliding groove (411) for the sliding block (422) to slide.
6. A mine track aligner according to claim 5, characterised in that, The moving block (42) is provided with an abutting bolt (43), and the abutting bolt (43) can fix the position of the moving block (42) on the guide rail (41).