Blast hole auxiliary positioning device for mining

Abstract

The invention discloses an auxiliary blasthole positioning device for mining, and particularly relates to the technical field of laser positioning, the auxiliary blasthole positioning device comprises a laser positioning assembly, an angle control machine assembly and a light spot bearing assembly, the laser positioning assembly comprises a laser transmitter and a laser range finder, the laser transmitter is used for transmitting a laser beam and forming a light spot on a working face, and the angle control machine assembly is used for controlling the angle control machine assembly; the laser range finder is used for measuring distance parameters from light spots to the laser positioning assembly, the light spot bearing assembly comprises a light spot bearing plate and an identification assembly, and a positioning reference hole is formed in the middle of the identification assembly. The laser range finder is used for distance verification, the error problem can be quickly and effectively found, meanwhile, the light spot receiving assembly is used for light spot correction, the light spot positioning precision is effectively improved, the influence of blast holes on the blasting effect is further reduced, meanwhile, according to the positioning scheme, manual one-by-one measurement and positioning are not needed, and the working efficiency is improved. And the working efficiency can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser positioning, and more particularly to a blast hole auxiliary positioning device for mine excavation. Background Art

[0002] Blasting technology in mining is one of the key links to improve mining efficiency and reduce production costs. Before blasting, geological surveys are required to understand the physical and mechanical properties of the rocks in the mining area (such as hardness, strength, etc.), as well as the geological structure characteristics, and to select appropriate blasting parameters such as drill hole diameter, hole depth, hole spacing, and row spacing based on the specific conditions of the ore body.

[0003] After determining the location of the blasting hole, a professional drilling rig is used to perform the drilling operation, and then the explosives are loaded. In addition to the reasonable control of the amount of blasting explosives, the drilling accuracy also plays a vital role in the blasting effect.

[0004] Traditionally, blasthole positioning involves measuring and marking each manhole one by one. To improve efficiency, existing technology employs a method of three-dimensional modeling based on the blasting work surface. After determining the three-dimensional coordinates of each blasthole based on blasting simulation calculations, laser equipment set at standard points in the actual site is used to control the emission of a laser beam. The direction and angle of the laser beam are controlled based on the three-dimensional coordinate parameters of each point, and the projection spot on the work surface is found to determine the position of the blasthole.

[0005] However, in actual use, the simulation of the working surface is basically assumed to be a planar state. But in actual scenarios, pits or protrusions will form in some areas of the working surface. At this time, since the laser beam is tilted, the actual projection point of the light spot will have an error with the theoretical projection point. When the blasting accuracy requirements are not high, the above error can be ignored. However, for scenarios with high blasting accuracy requirements, especially when the distance from the standard point is relatively far, or the pits and protrusions are relatively large, the above error is relatively large, affecting the precise control of the actual blasting effect. Summary of the Invention

[0006] The present invention provides an auxiliary positioning device for blasting holes used in mine excavation, and the problem to be solved is: when pits or protrusions are formed in part of the working surface, since the laser beam is inclined, the actual projection point of the light spot will have an error with the theoretical projection point, especially when the distance from the standard point is relatively far, or the pits and protrusions are relatively large, the error is relatively large, affecting the precise control of the actual blasting effect.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a blast hole auxiliary positioning device for mining, comprising a laser positioning component, an angle control component, and a light spot receiving component, wherein the laser positioning component comprises a laser transmitter and a laser rangefinder, and the angle control component is used to control the laser positioning component to rotate along the X-axis and the Z-axis;

[0008] The laser transmitter is used to emit a laser beam and form a light spot on the working surface, and the laser rangefinder is used to measure the distance parameter from the light spot to the laser positioning component;

[0009] The light spot receiving component includes a light spot receiving plate and an identification component. A positioning reference hole is set in the middle of the identification component. The light spot receiving plate is used to receive the light spot above the pit. The identification component is used to pass through the positioning reference hole and fall into the pit for positioning and identification.

[0010] In a preferred embodiment, the angle control machine assembly includes a bracket assembly, a Z-axis rotation regulator and an X-axis rotation regulator. The Z-axis rotation regulator is arranged on the bracket assembly for rotation along the Z-axis direction, the X-axis rotation regulator is installed on the Z-axis rotation regulator for rotation along the X-axis direction, the laser positioning assembly is fixedly installed on the X-axis rotation regulator, and the Z-axis rotation regulator is used to drive the laser positioning assembly to rotate along the Z-axis direction, and the X-axis rotation regulator is used to drive the laser positioning assembly to rotate along the X-axis direction.

[0011] In a preferred embodiment, the marking component includes a marking nail and a marking pigment, the marking nail is a cylindrical nail structure, and the marking pigment is a colored powder material.

[0012] In a preferred embodiment, multiple groups of control blades are provided on the light spot receiving plate corresponding to the positioning reference holes, and the control blades are movably provided above the positioning reference holes. The control blades control the closing of the positioning reference holes by approaching or moving away from the positioning reference holes, and control the size of the effective aperture of the positioning reference holes.

[0013] In a preferred embodiment, a control turntable is provided above the control blade, a guide ring is fixedly installed in the light spot receiving plate, a rotation guide groove is provided on the guide ring, and a slider structure is provided on the control turntable that is slidably installed in the rotation guide groove, so that the control turntable has the ability to rotate relative to the guide ring, and one end of the control blade is rotatably installed on the control turntable, and a connecting rod is also rotatably installed on the control blade, and the end of the connecting rod away from the control blade is rotatably connected to the guide ring.

[0014] In a preferred embodiment, a supporting bracket is provided on the periphery of the light spot receiving plate, the light spot receiving plate is slidably mounted on the supporting bracket, and supporting columns are provided around the supporting bracket for supporting the light spot receiving plate.

[0015] In a preferred embodiment, a movable groove is provided on the support bracket, a limiting pin is provided on the light spot receiving plate, the limiting pin is slidably provided in the movable groove, and a damping structure is provided between the light spot receiving plate and the support bracket.

[0016] In a preferred embodiment, the supporting column is a sliding rod structure, which is slidably installed in the supporting bracket, and at least three groups of sliding rod structures are provided. A buffering elastic part is provided between the sliding rod structure and the supporting bracket, and a damping structure is provided between the sliding rod structure and the supporting bracket.

[0017] In a preferred embodiment, the supporting bracket is an automatic telescopic rod, and at least three groups of automatic telescopic rods are provided. A posture sensor assembly is provided on the light spot receiving plate, and the posture sensor assembly includes a horizontal tilt sensor and a direction sensor.

[0018] Two sets of rectangular frames are slidingly set under the light spot receiving plate. The overlapping area of ​​the two sets of rectangular frames forms a restriction area for restricting the identification nails. The sliding directions of the two sets of rectangular frames are perpendicular to each other, and the two sets of rectangular frames are controlled to move by a set of mobile drivers respectively.

[0019] The beneficial effects of the present invention are as follows: the present invention uses a laser rangefinder to verify the distance. When the laser rangefinder detects that an error occurs in the distance parameter between the light spot and the laser positioning component, it can be known that the light spot at that location has an error, and the error problem can be discovered quickly and effectively. At the same time, a light spot receiving component is used to correct the light spot, and a light spot receiving plate is used to approach the light spot to receive it until the light spot distance value meets the error margin range of the theoretical distance value. The laser rangefinder is slowly translated to move the light spot to the positioning reference hole. At this time, the positioning reference hole can perform auxiliary positioning and complete the light spot correction, thereby effectively improving the positioning accuracy of the light spot and further reducing the influence of the blasting hole on the blasting effect. At the same time, the above positioning scheme does not require manual measurement and positioning one by one, and can also effectively improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the laser positioning assembly of the present invention.

[0021] Figure 2 This is a schematic diagram of the composition structure of the laser positioning component of the present invention.

[0022] Figure 3 This is a state diagram of the present invention when applied to blasting hole positioning on a step blasting plane in an open-pit mine.

[0023] Figure 4 This is a state diagram of the present invention when it is applied to blasting hole positioning on the tunnel excavation face.

[0024] Figure 5This is a diagram showing the position of the light spot when the laser beam of the present invention falls on an almost flat working surface.

[0025] Figure 6 This is a diagram of the light spot position when the laser beam of the present invention falls on the groove on the working surface.

[0026] Figure 7 It is a structural schematic diagram of the light spot receiving component of the present invention.

[0027] Figure 8 This is a state diagram when the present invention uses a light spot receiving plate to perform light spot correction on the area above the small pit.

[0028] Figure 9 This is a schematic diagram of the structure when the adjustable positioning reference hole solution is adopted in the present invention.

[0029] Figure 10 This is a state diagram of the reference hole when it is fully opened when the adjustable positioning reference hole solution is adopted in the present invention.

[0030] Figure 11 It is a schematic diagram of the composition of each control blade of the present invention.

[0031] Figure 12 This is a state diagram of each control blade of the present invention when it is open.

[0032] Figure 13 This is a state diagram of positioning marking after light spot correction when the adjustable positioning reference hole solution is adopted in the present invention.

[0033] Figure 14 It is a structural schematic diagram of the present invention after the improvement of the light spot receiving component based on the large pit.

[0034] Figure 15 For the present invention Figure 14 A magnified view of the structure of part A.

[0035] Figure 16 This is a top view of the improved light spot receiving plate of the present invention.

[0036] Figure 17 A schematic diagram of an improved solution for an automatically controlled light spot receiving component provided by the present invention.

[0037] Figure 18 Schematic diagram of the cooperation between two sets of rectangular frames and the positioning top of the present invention.

[0038] The accompanying drawings are marked as follows: 1. Laser positioning assembly; 11. Laser emitter; 111. Laser beam; 112. Light spot; 12. Laser rangefinder; 13. Laser sampler; 2. Angle control machine assembly; 21. Bracket assembly; 22. Z-axis rotation adjuster; 23. X-axis rotation adjuster; 3. Light spot receiving assembly; 31. Light spot receiving plate; 311. Guide ring; 312. Rotation guide groove; 313. Limiting pin; 32. Marking assembly; 321. Marking pin; 322. Marking pigment; 33. Positioning reference hole; 331. Control blade; 332. Control turntable; 333. Connecting rod; 34. Support bracket; 341. Support column; 3411. Sliding rod structure; 3412. Automatic telescopic rod; 342. Movable slot; 35. Leveler; 36. Rectangular frame; 361. Mobile drive; 37. Posture sensor assembly. DETAILED DESCRIPTION

[0039] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0040] Refer to the instruction manual Figures 1 to 18 , a blasting hole auxiliary positioning device for mine excavation, including a laser positioning component 1 and an angle control machine component 2, the laser positioning component 1 includes a laser transmitter 11 and a laser rangefinder 12, the angle control machine component 2 includes a bracket component 21 (tripod), a Z-axis rotation adjuster 22 and an X-axis rotation adjuster 23, wherein the Z-axis rotation adjuster 22 is arranged on the bracket component 21 for rotation along the Z-axis direction, the X-axis rotation adjuster 23 is installed on the Z-axis rotation adjuster 22 for rotation along the X-axis direction, the laser positioning component 1 is fixedly installed on the X-axis rotation adjuster 23, and the Z-axis rotation adjuster 22 is used to drive the laser positioning component 1 to rotate along the Z-axis direction, and the X-axis rotation adjuster 23 is used to drive the laser positioning component 1 to rotate along the X-axis direction. Both are commonly used automatic rotation driving devices, so the specific structure of this embodiment will not be explained in detail.

[0041] Refer to the instruction manual Figure 3 and Figure 4In actual use, according to the pre-calculated and designed method, the bracket assembly 21 is placed at the set standard point, so that the laser positioning assembly 1 is at a fixed standard three-dimensional coordinate point, and the laser emitter 11 is controlled to emit a laser beam 111, so that the laser beam 111 is projected onto the working surface to form a light spot 112. Since the position of the blasting hole and the position of the laser positioning assembly 1 are relatively fixed, the corresponding inclination angle of the laser emitter 11 is also relatively fixed, and the effective length of the laser emitter 11 is also relatively fixed (that is, the distance from the light spot 112 to the laser positioning assembly 1 is also relatively fixed). Therefore, according to the actual position of each blasting hole calculated and set in advance, the inclination parameters (X-axis and Y-axis rotation parameters) of the laser positioning assembly 1 corresponding to the blasting hole position are calculated, and the angle control machine assembly 2 is used to drive the laser positioning assembly 1 to rotate according to the corresponding parameters. At this time, the fixed light spot 112 is the actual position of the blasting hole, thereby forming auxiliary positioning of the blasting hole.

[0042] Among them, when the working surface is relatively flat, refer to the instructions Figure 5 At this time, the position of the light spot 112 is relatively coincident with the theoretical working surface. Therefore, the position of the light spot 112 is relatively accurate. At this time, the distance parameter between the light spot 112 and the laser positioning component 1 is measured by the laser rangefinder 12. The distance parameter is relatively consistent with the theoretical parameter calculated in advance. However, refer to the attached manual. Figure 6 When there is a pit on the working surface, the pit deviates downward relative to the theoretical working surface, and the laser beam 111 is incident at an angle. Therefore, the actual position of the light spot 112 will deviate relatively to the side of the groove, which deviates from the theoretical position. In particular, the larger the pit, the farther the distance of the laser positioning component 1, and the higher the tilt of the laser emitter 11, the greater the above deviation will be. Therefore, through the setting of the laser rangefinder 12, the laser rangefinder 12 detects the distance parameter of the light spot 112 from the laser positioning component 1 at this time, and it will be found that the parameter is greater than the theoretical parameter. At this time, it can be determined that the light spot 112 at this location has an error (if there is a protrusion, the above error will also be generated). The staff can promptly discover the error when marking and deal with it in time to avoid blast hole positioning errors and irreversible consequences.

[0043] It should be noted that, since a certain error margin is reserved for each blasting hole during actual blasting, a certain error margin for the detection distance value of the laser rangefinder 12 can also be reserved during actual positioning. Within this margin, marking is performed normally without alarm processing. When the above error is too large and exceeds the error margin, alarm processing is performed.

[0044] In the above scheme, if a raised structure is encountered, the light spot can be corrected by using a tool to flatten the raised structure, so that the light spot falls on the theoretical working surface and then marked. However, for some pits, backfilling is required, but the amount of material during backfilling is difficult to control and relatively troublesome. Therefore, when positioning the blasting hole, if an error is encountered, the following angle control machine component 2 provided in this embodiment can also be used to perform light spot correction processing. For details, refer to the attached manual. Figure 7 and Figure 8 The blasting hole auxiliary positioning device also includes a light spot receiving component 3, which includes a light spot receiving plate 31 and an identification component 32. A positioning reference hole 33 is provided in the middle of the identification component 32. During actual positioning, the laser rangefinder 12 detects that the distance of the actual light spot 112 is inconsistent with the theoretical distance, and the staff finds that the actual situation is a pit. The light spot receiving plate 31 is used to approach the light spot 112 to receive it. At the same time, the laser rangefinder 12 detects the distance value of the light spot 112 and adjusts the position of the laser rangefinder 12 until the distance value meets the error margin range of the theoretical distance value. The laser rangefinder 12 is slowly translated to move the light spot 112 to the positioning reference hole 33. At this time, the positioning reference hole 33 can perform auxiliary positioning and complete the light spot correction. That is, after the identification component 32 passes through the positioning reference hole 33 and contacts the ground, it can be completely and accurately identified.

[0045] Among them, the identification component 32 can be an identification nail 321 or an identification pigment 322. For example, after the light spot correction is completed, the identification nail 321 is directly passed through the positioning reference hole 33 and inserted into the pit to perform identification positioning, or a paint spraying device, a paint pen, lime powder or other powder with a distinct color is used as the identification pigment 322. For example, the paint is sprayed vertically at the light spot receiving plate 31, so that the paint passes through the positioning reference hole 33 and falls into the pit for marking, or the paint pen is inserted into the positioning reference hole 33 and contacts the pit for marking, or the powder is passed through the positioning reference hole 33 and falls into the pit for marking.

[0046] Among them, the surface of the light spot receiving plate 31 can be provided with reflective paint, and a red or green laser beam can be used as the laser emitter 11 to increase the visibility of the light spot 112. At the same time, it also improves the detection accuracy of the laser rangefinder 12 when performing laser ranging. In order to facilitate the search for the specific position of the light spot 112, the laser positioning component 1 can also be equipped with a laser sampler 13, such as a laser projection device with a cross line (refer to a laser level), which forms a projection pattern with a certain shape by continuously controlling the reciprocating movement of the laser device, so as to find the position of the light spot 112 more quickly.

[0047] It should be noted that by using the laser rangefinder 12 to verify the distance and using the light spot receiving component 3 to correct the light spot, the position of the light spot 112 can be made closer to the theoretical position during actual positioning, thereby effectively improving the positioning accuracy of the light spot 112 and further reducing the impact of the blasting hole on the blasting effect. At the same time, the above positioning scheme does not require manual measurement and positioning one by one, and can also effectively improve work efficiency.

[0048] In addition, in the above scheme, theoretically, the smaller the aperture of the positioning reference hole 33, the more accurate the positioning is, but the corresponding mark is also relatively small, and it is not easy to be found during the subsequent drilling operation. For this reason, this embodiment also provides an adjustable positioning reference hole scheme. For details, refer to the attached manual. Figures 9 to 12 The positioning reference hole 33 is a large hole structure. A plurality of control blades 331 are provided on the light spot receiving plate 31 corresponding to the positioning reference hole 33. The control blades 331 are movably provided above the positioning reference hole 33. The control blades 331 control the closing of the positioning reference hole 33 by approaching or moving away from the positioning reference hole 33, and control the size of the effective aperture of the positioning reference hole 33 (i.e., the diameter of the cylinder that can pass through).

[0049] The control dial 332 is fixedly mounted on the light spot receiving plate 31, and a rotation guide groove 312 is provided on the guide ring 311. The control dial 332 is provided with a slider structure slidably mounted in the rotation guide groove 312, so that the control dial 332 has the ability to rotate relative to the guide ring 311, and one end of the control blade 331 is rotatably mounted on the control dial 332, and a connecting rod 333 is also rotatably mounted on the control blade 331. The end of the connecting rod 333 away from the control blade 331 is rotatably connected to the guide ring 311, so that the control blade 331, the control dial 332, the connecting rod 333 and the guide ring 311 form a crank slider structure. When the control dial 332 is rotated, each control blade 331 can be controlled to approach or move away from the positioning base at the same time. The calibrated hole 33 is formed to close and open the positioning reference hole 33 and to control the effective aperture of the positioning reference hole 33. In actual use, the light spot receiving plate 31 and the control blade 331 are used to receive the light spot 112 and adjust the position (reflective paint can also be provided on the control blade 331 to improve the recognizability of the light spot 112). After the adjustment is qualified, the light spot receiving plate 31 is slowly moved to move the light spot 112 to the center of all the control blades 331. Then, according to the needs, the appropriate identification component 32 is selected, and according to the needs, the opening degree of the control blade 331 is adjusted to control the effective aperture. For example, the control blade 331 is first adjusted to open a smaller range, the identification nail 321 is inserted for center positioning, and then the control blade 331 is fully opened, and the identification pigment 322 is applied for large-area identification to facilitate subsequent workers to find and identify.

[0050] In the above embodiment, when facing a relatively small pit, the light spot receiving plate 31 can be directly placed on the plane around the pit, which is convenient to use. However, when facing some larger pits, if the light spot receiving plate 31 is set larger, it will be relatively clumsy to use. Therefore, this embodiment also makes the following improvements to the angle control machine assembly 2. For details, refer to the attached manual. Figures 14 to 16 The light spot receiving plate 31 is provided with a supporting bracket 34 on the periphery, and the light spot receiving plate 31 is slidably mounted on the supporting bracket 34. The supporting bracket 34 is provided with supporting columns 341 around the supporting bracket 34. The supporting columns 341 are used to support and adjust the light spot receiving plate 31. When encountering a large pit, the light spot receiving plate 31 can be placed entirely into the pit. With the support of the supporting columns 341, the height of the light spot receiving plate 31 can be adjusted (when facing a vertical working surface, this corresponds to distance adjustment), and the horizontal adjustment can be performed with the help of the relative sliding of the light spot receiving plate 31 and the supporting bracket 34, so that the light spot receiving plate 31 can be adjusted more conveniently for light spot correction.

[0051] Among them, a movable groove 342 is provided on the supporting frame 34, and a limiting pin 313 is provided on the light spot receiving plate 31. The limiting pin 313 is slidably set in the movable groove 342, and a damping structure, such as a rubber pad, is provided between the light spot receiving plate 31 and the supporting frame 34 to facilitate self-positioning after adjusting the position of the light spot receiving plate 31.

[0052] The supporting column 341 is a sliding rod structure 3411, which is slidably installed in the supporting bracket 34, and at least three groups of sliding rod structures 3411 are provided. A buffer elastic member is provided between the sliding rod structure 3411 and the supporting bracket 34 to offset the vertical gravity of the light spot receiving plate 31, and a damping structure, such as a rubber sleeve, is also provided between the sliding rod structure 3411 and the supporting bracket 34, so as to facilitate automatic positioning after adjusting the height of the light spot receiving plate 31. At the same time, in order to facilitate the relative leveling of the light spot receiving plate 31, a spirit level 35 is fixedly installed on the top of each sliding rod structure 3411. A simple bubble level or a high-precision level sensor can be used, so that the light spot receiving plate 31 can be adjusted to a horizontal state during actual placement.

[0053] Furthermore, in the above scheme, it is assumed that each blasting hole is drilled perpendicular to the working surface. Therefore, when positioning, it is only necessary to keep the marking component 32 perpendicular to the working surface when passing through the positioning reference hole 33. Therefore, the actual marking point falling in the pit is relatively accurate. However, for some blasting holes, it is necessary to drill the holes at an angle, and the inclination angle is fixed. Therefore, it is not easy to determine the passing angle of the marking component 32 during manual marking. For this purpose, refer to the attached manual. Figure 17 and Figure 18 This embodiment also provides an improved solution for an automatically controlled light spot receiving component. The supporting frame 34 is an automatic telescopic rod 3412 (such as a cylinder or a hydraulic cylinder, etc.). At least three groups of automatic telescopic rods 3412 are provided. A posture sensor component 37 is provided on the light spot receiving plate 31. The posture sensor component 37 includes a horizontal tilt sensor and a direction sensor. Two groups of rectangular frames 36 are slidingly provided below the light spot receiving plate 31. The identification component 32 uses an identification pin 321. The overlapping area of ​​the two groups of rectangular frames 36 forms a restriction area for restricting the identification pin 321. The sliding directions of the two groups of rectangular frames 36 are perpendicular to each other, and the two groups of rectangular frames 36 are respectively controlled to move by a group of mobile drivers 361 (such as a motor screw structure or a cylinder structure, etc.).

[0054] By adopting the above solution, when the light spot receiving plate 31 is placed in the pit, the light spot receiving plate 31 is first adjusted to a horizontal state. Then, according to the position parameters obtained from the position of the light spot 112 on the light spot receiving plate 31, the height of the light spot receiving plate 31 is adjusted until the position parameters of the light spot 112 detected by the laser rangefinder 12 meet the requirements. Then, the light spot receiving plate 31 is controlled to move so that the light spot 112 corresponds to the positioning reference hole 33. At the same time, according to the tilt parameter corresponding to the position of the blasting hole, after obtaining the direction information of the light spot receiving plate 31 at this location through the rectangular frame 36, the telescopic parameters of the two sets of mobile drivers 361 are calculated, thereby controlling the two sets of rectangular frames 36 to move to corresponding positions. At this time, the restriction area formed by the two sets of rectangular frames 36 deviates from the positioning reference hole 33. At this time, after the marking pin 321 is inserted into the restriction area of ​​the positioning reference hole 33 and the rectangular frame 36, an angle restriction on the marking pin 321 can be formed, thereby achieving more accurate positioning.

[0055] It should be noted that the above is only an example of the initial simple light spot receiving plate 31. In actual application, it can be reasonably selected according to cost requirements. For example, when combined with the adjustable positioning reference hole solution, the control blade 331 is first manipulated to open a smaller hole, and after positioning with the identification pin 321, the control blade 331 is continued to be opened, and the identification pigment 322 is put in to mark a large area for subsequent workers to identify. If the cost is allowed, an automatic identification type identification component 32 can also be used. In addition, the above solutions are all based on the instructions attached. Figure 3 The blast hole positioning is performed on a horizontal working surface. Therefore, the corresponding scheme description is also based on the horizontal surface. Figure 4 As for the vertical working surface shown, its positioning principle is the same as the above-mentioned one. It is only necessary to pay attention to the difference between horizontal and vertical. Therefore, this embodiment will not be explained in detail.

[0056] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and improvements are possible without departing from the scope of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A blast hole auxiliary positioning device for mine development, characterized by: The invention comprises a laser positioning component (1), an angle control component (2) and a light spot receiving component (3), wherein the laser positioning component (1) comprises a laser emitter (11) and a laser rangefinder (12), and the angle control component (2) is used to control the laser positioning component (1) to rotate along the X-axis and the Z-axis. The laser emitter (11) is used to emit a laser beam (111) and form a light spot (112) on a working surface, and the laser rangefinder (12) is used to measure a distance parameter from the light spot (112) to the laser positioning component (1); The light spot receiving component (3) comprises a light spot receiving plate (31) and an identification component (32), wherein a positioning reference hole (33) is provided in the middle of the identification component (32), the light spot receiving plate (31) is used to receive the light spot (112) above the pit, and the identification component (32) is used to pass through the positioning reference hole (33) and fall into the pit for positioning identification.

2. The blast hole auxiliary positioning device for mine excavation according to claim 1, characterized in that: The angle control machine assembly (2) includes a bracket assembly (21), a Z-axis rotation regulator (22) and an X-axis rotation regulator (23), wherein the Z-axis rotation regulator (22) is arranged on the bracket assembly (21) for rotation along the Z-axis direction, and the X-axis rotation regulator (23) is mounted on the Z-axis rotation regulator (22) for rotation along the X-axis direction. The laser positioning assembly (1) is fixedly mounted on the X-axis rotation regulator (23), and the Z-axis rotation regulator (22) is used to drive the laser positioning assembly (1) to rotate along the Z-axis direction, and the X-axis rotation regulator (23) is used to drive the laser positioning assembly (1) to rotate along the X-axis direction.

3. The blast hole auxiliary positioning device for mine excavation according to claim 2, characterized in that: The marking component (32) comprises a marking nail (321) and a marking pigment (322); the marking nail (321) is a cylindrical nail structure; and the marking pigment (322) is a colored powdered material.

4. The blast hole auxiliary positioning device for mine excavation according to claim 3, characterized in that: A plurality of control blades (331) are provided on the light spot receiving plate (31) at locations corresponding to the positioning reference holes (33). The control blades (331) are movably provided above the positioning reference holes (33). The control blades (331) control the closing of the positioning reference holes (33) by moving closer to or farther away from the positioning reference holes (33), and control the size of the effective aperture of the positioning reference holes (33).

5. The blast hole auxiliary positioning device for mine excavation according to claim 4, characterized in that: A control turntable (332) is provided above the control blade (331), a guide ring (311) is fixedly installed in the light spot receiving plate (31), a rotation guide groove (312) is provided on the guide ring (311), and a slider structure is provided on the control turntable (332) and is slidably installed in the rotation guide groove (312), thereby enabling the control turntable (332) to rotate relative to the guide ring (311), and one end of the control blade (331) is rotatably installed on the control turntable (332), and a connecting rod (333) is also rotatably installed on the control blade (331), and the end of the connecting rod (333) away from the control blade (331) is rotatably connected to the guide ring (311).

6. The blast hole auxiliary positioning device for mine excavation according to claim 5, characterized in that: A support frame (34) is provided on the periphery of the light spot receiving plate (31), and the light spot receiving plate (31) is slidably mounted on the support frame (34). Support columns (341) are provided on the periphery of the support frame (34), and the support columns (341) are used to support the light spot receiving plate (31).

7. The blast hole auxiliary positioning device for mine excavation according to claim 6, characterized in that: A movable groove (342) is provided on the support frame (34), a limiting pin (313) is provided on the light spot receiving plate (31), the limiting pin (313) is slidably arranged in the movable groove (342), and a damping structure is provided between the light spot receiving plate (31) and the support frame (34).

8. The blast hole auxiliary positioning device for mine excavation according to claim 7, characterized in that: The supporting column (341) is a sliding rod structure (3411), and the sliding rod structure (3411) is slidably installed in the supporting frame (34), and the sliding rod structure (3411) is provided in at least three groups, a buffer elastic member is provided between the sliding rod structure (3411) and the supporting frame (34), and a damping structure is provided between the sliding rod structure (3411) and the supporting frame (34).

9. The blast hole auxiliary positioning device for mine excavation according to claim 7, characterized in that: The support bracket (34) is an automatic telescopic rod (3412), and at least three groups of the automatic telescopic rods (3412) are provided. A posture sensor assembly (37) is provided on the light spot receiving plate (31), and the posture sensor assembly (37) includes a horizontal tilt sensor and a direction sensor.

10. The blast hole auxiliary positioning device for mine excavation according to claim 9, characterized in that: Two groups of rectangular frames (36) are slidably provided below the light spot receiving plate (31), and the overlapping area of ​​the two groups of rectangular frames (36) forms a restriction area for restricting the identification pin (321). The sliding directions of the two groups of rectangular frames (36) are perpendicular to each other, and the two groups of rectangular frames (36) are respectively controlled to move by a group of moving drivers (361).

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