Laser drilling machine and method for continuous and rapid drilling

Abstract

The present invention provides a laser drilling machine and method for continuous and rapid drilling, including a drilling tool mounting seat for installing a laser-mechanical combined drilling tool; the laser-mechanical combined drilling tool includes a laser drilling tool and a mechanical drilling tool, the mechanical drilling tool includes a drill bit, a drill rod and a power mechanism, one end of the drill rod is connected to the drill bit, and the other end is connected to the power mechanism; the laser drilling tool includes a laser head, a pump unit and a laser, the laser provides laser for the laser head, the laser head is arranged inside the drill rod, and a laser transmission channel is arranged outside the laser head, a one-way output valve is arranged at the front of the laser transmission channel and at the front end of the laser head, and the pump unit is used to generate a high-pressure medium and transmit it to the laser transmission channel. The present invention can realize laser-mechanical synchronous rock breaking, save the step-changing time required for step-by-step rock breaking, greatly improve the efficiency of engineering construction, and save the time and economic cost of on-site construction.

Description

Technical Field

[0001] The invention belongs to the technical field of laser drilling machines, and in particular relates to a laser drilling machine and a method for continuous and rapid drilling. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Engineering drilling rigs are one of the most widely used mechanical equipment in engineering construction and have great advantages in engineering construction. However, engineering drilling rigs face huge challenges in efficient and rapid construction. In tunnels and underground projects, for rocks with medium hardness (uniaxial compressive strength greater than 60MPa) and above, the drilling efficiency of geological drilling rigs is low, and the drilling speed is generally less than 3m per hour, which takes up a lot of normal construction time and limits the application of 100-meter-class drilling rig drilling methods.

[0004] In this context, a new generation of auxiliary rock breaking concepts based on new rock breaking methods such as laser, water jet, microwave, and particles have been proposed and have become a research hotspot and technological frontier in the field of international engineering drilling. Among many new rock breaking methods, laser technology has the advantages of low energy, high efficiency, and easy implementation. It has a relatively rich practical foundation in the field of petroleum engineering and is considered to be a very potential auxiliary rock breaking method. Studies have shown that laser-assisted drilling construction can effectively improve rock breaking efficiency, and its drilling speed can reach more than 10 times that of traditional drilling rigs. With the assistance of laser, not only can the drilling efficiency be greatly improved, but also the service life of the drill bit and drill rod can be extended, and the occurrence of disasters such as stuck drill and abnormal wear can be effectively avoided. Therefore, high-energy laser-assisted rock breaking technology has a high research and application value in the field of engineering drilling.

[0005] The patent "A laser-assisted geological drilling rig and its non-submerged construction process" with publication number CN115142795A proposes a device for laser head vibration reduction and laser emission angle adjustment, which solves the vibration problem of the laser head and proposes a non-submerged construction process for laser drilling rigs to solve the problem of efficient laser transmission.

[0006] However, the above patent still has the following problems:

[0007] (1) The laser drilling rig adopts a step-by-step drilling construction process. For drilling rigs with a drilling distance of 100 meters or more, it is difficult to increase the drilling speed due to the influence of the step-changing time;

[0008] (2) The problem of efficient transmission of laser in dust and rock debris environment during laser-mechanical continuous excavation by laser drilling rigs was not considered;

[0009] (3) The problem of damage to the laser head caused by the slag discharge fluid carrying rock slag and cuttings during laser-mechanical continuous excavation by the laser drill was not considered. Summary of the invention

[0010] In order to solve the above problems, the present invention proposes a laser drilling rig and method for continuous and rapid drilling. The present invention can realize laser-mechanical synchronous rock breaking, eliminate the step-changing time required for step-by-step rock breaking, greatly improve the engineering construction efficiency, and save time and economic costs for on-site construction.

[0011] According to some embodiments, the present invention adopts the following technical solutions:

[0012] A laser drilling machine for continuous and rapid drilling, comprising:

[0013] Drilling tool mounting base, used for installing laser-mechanical combined drilling tools;

[0014] The laser-mechanical combined drilling tool comprises a laser drilling tool and a mechanical drilling tool, wherein the mechanical drilling tool comprises a drill bit, a drill rod and a power mechanism, wherein one end of the drill rod is connected to the drill bit, and the other end is connected to the power mechanism;

[0015] The laser drilling tool includes a laser head, a pump unit and a laser. The laser provides laser for the laser head. The laser head is arranged inside the drill rod, and a laser transmission channel is arranged outside the laser head. A one-way output valve is arranged in front of the laser transmission channel and at the front end of the laser head. The pump unit is used to generate high-pressure medium and transmit it to the laser transmission channel.

[0016] As an optional embodiment, it also includes a slag removal medium pump group and a slag removal medium transmission channel. The slag removal medium pump group is used to generate high-pressure slag removal medium, which is transmitted to the slag removal medium transmission channel by a slag removal pipeline. The slag removal medium transmission channel is mounted on the outside of the laser transmission channel and the one-way output valve.

[0017] As a further feature, the slag removal medium transmission channel, the laser transmission channel and the drill rod are coaxially arranged.

[0018] As an optional implementation, the drill rod and the laser transmission channel are coaxially arranged.

[0019] As an optional implementation, the laser is arranged on the top of a fixed circular tube, and the fixed circular tube is coaxially arranged with the laser transmission channel and the drill rod, and does not rotate together with the drill rod.

[0020] As an optional implementation, the drilling tool mounting seat is arranged on the moving mechanism, and is arranged on the moving mechanism through an adjustment mechanism, and the adjustment mechanism is used to achieve vertical and horizontal adjustment and angle adjustment of the drilling tool mounting seat.

[0021] As an optional implementation, the power mechanism is used to drive the drill rod to drive the drill bit to rotate and break rocks.

[0022] As an optional implementation, the high-pressure medium is generated by a high-pressure pump unit and transmitted to the laser transmission channel located inside the drill rod via a high-pressure medium transmission pipeline.

[0023] As an optional implementation, the front end of the laser transmission channel is gradually contracted, with a diameter becoming smaller and smaller, and an accommodating cavity is provided at the end, and a one-way output valve is provided in the accommodating cavity.

[0024] As an optional embodiment, the one-way output valve includes a baffle and a spring, one end of the spring abuts against the inner wall of the laser transmission channel, and the other end abuts against the baffle, one end of the baffle contacts the inner wall of one side of the laser transmission channel, and the other end contacts the inner wall of the other side of the laser transmission channel.

[0025] As an optional implementation, the laser head is replaceable. By replacing laser heads of different models, the energy distribution form of the laser can be changed, the relative position of the laser head and the drill bit can be changed to adjust the spot diameter, and the continuous laser and pulse laser conversion can be achieved by switching the laser. The laser can be adjusted to set different laser rock breaking parameters.

[0026] The working method based on the above laser drilling machine includes the following steps:

[0027] Use laser-mechanical combined drilling tools to break rock simultaneously or individually;

[0028] When the high-pressure medium is output, the high-pressure medium pushes the one-way output valve to open to form a passage, and the laser works and emits high-energy laser to break the rock; when the high-pressure medium stops outputting, the one-way output valve closes to prevent rock debris from entering.

[0029] As an optional implementation, when it is necessary to drill in slag removal liquid or slag removal gas for slag removal, the slag removal medium pump group generates slag removal medium, which is input between the drill pipe and the laser transmission channel position, and the slag and cuttings produced by rock breaking are output through the slag removal channel outside the drill pipe at the drill bit position.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention fully considers the problems of slow drilling speed and low construction efficiency of existing geological drilling rigs in the process of engineering construction, which makes it difficult to widely use the drilling construction of 100-meter-level drilling rigs. A laser drilling rig with continuous and rapid drilling is proposed. The laser head is arranged in the laser transmission channel in the center of the drill rod. The laser head and the laser placed on the outside of the drilling rig are connected by optical fiber. During the rock breaking process, the drilling rig of the present invention can realize laser-mechanical synchronous rock breaking, eliminating the step-changing time required for step-by-step rock breaking, greatly improving the engineering construction efficiency, and saving the time and economic cost of on-site construction.

[0032] In the process of laser-mechanical synchronous rock breaking, since the drill bit mechanical rock breaking generates dust, rock cuttings and other polluted environments, the transmission efficiency of high-energy laser is greatly reduced in dust, rock cuttings and other polluted environments, which greatly affects the efficiency of laser rock breaking. The present invention uses a high-pressure medium (high-pressure water or high-pressure gas) to assist the laser high-efficiency transmission device, and a laser transmission channel is opened at the center of the drill rod. The laser head is placed inside the laser transmission channel. When the laser is working, a high-pressure medium (high-pressure water or high-pressure gas) is introduced into the laser transmission channel. Under the guidance of the high-pressure medium (high-pressure water or high-pressure gas), the high-energy laser is efficiently transmitted to the surface of the rock mass and used to assist the drill bit in rock breaking, which solves the problem of low transmission efficiency of conventional laser transmission methods in the environment of drilling rig rock breaking dust and rock cuttings.

[0033] The present invention designs a one-way output valve to prevent the slag removal fluid carrying rock slag and cuttings from flowing back into the laser transmission channel and causing damage to the laser head lens group. When drilling and breaking rocks, drilling slag removal fluid or slag removal gas is required for slag removal. The drilling slag removal fluid or slag removal gas is generated by a high-pressure pump group and input between the drill pipe and the laser transmission channel position. The slag and cuttings generated by rock breaking are output through the slag removal channel outside the drill pipe at the drill bit position, and finally the cyclic slag removal function is completed.

[0034] The laser drilling rig provided by the present invention has a wide range of applications and supports a variety of rock breaking mode rotations according to different geological conditions, such as pure mechanical rock breaking, pure laser rock breaking, laser-mechanical synchronous rock breaking, and laser-mechanical distributed rock breaking.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0037] Figure 1 A schematic diagram of the three-dimensional structure of a laser drilling rig for continuous and rapid drilling according to an embodiment of the present invention;

[0038] Figure 2 for Figure 1 A cross-sectional view of the internal structure of the laser-mechanical combined drilling tool shown;

[0039] Figure 3 for Figure 2 The schematic diagram of the one-way output valve structure shown;

[0040] The symbols in the accompanying drawings are as follows:

[0041] 1. Slag discharge medium pump group; 2. Slag discharge pipeline; 3. Laser; 4. Optical fiber; 5. Pump group unit; 6. High-pressure medium transmission pipeline; 7. Drill tool mounting seat; 8. Power mechanism; 9. Drill rod; 10. Drill bit; 11. Rock surface;

[0042] 101. Laser head fixing round tube; 102. Laser transmission channel; 103. Slag removal medium transmission channel; 104. Laser head; 105. One-way output valve;

[0043] 1051. baffle; 1052. spring. DETAILED DESCRIPTION

[0044] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0045] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] like Figures 1 to 3 As shown, the present invention proposes a laser drilling machine for continuous and rapid drilling, comprising:

[0048] A drilling tool mounting seat 7, used for mounting and fixing a laser-mechanical combined drilling tool;

[0049] A drill rod 9, one end of which is connected to a drill bit 10 by a thread, and the other end of which is connected to a power mechanism 8 for transmitting power to drive the drill bit 10 to rotate and break the rock surface 11 in front;

[0050] A slag discharge medium pump group 1, wherein the slag discharge medium pump group 1 is used to generate a high-pressure slag discharge medium and transmit the high-pressure slag discharge medium to a slag discharge medium transmission channel 103 through a slag discharge pipeline 2;

[0051] Laser 1, the laser 1 is used to generate laser light and transmit the light to the laser head through optical fiber 2;

[0052] A pump unit 3, wherein the pump unit is used to generate a high-pressure medium and transmit the high-pressure medium to the laser transmission channel 102 through a high-pressure medium transmission pipeline 6;

[0053] The laser head fixing round tube 101 is used to fix the laser head 104, so as to solve the problem of dynamic and static separation between the drill rod 9 and the laser head 104;

[0054] The one-way output valve 105 is composed of a baffle 1051 and a spring 1052 . The high-pressure medium in the drill rod 9 flows in one direction, thereby preventing dust and rock chips from being adsorbed to the laser head 104 and causing damage to the laser head 104 .

[0055] In some embodiments of the present invention, Figure 1 As shown, the drilling tool body is composed of a drilling tool mounting seat 7, a power mechanism 8, a drill rod 9, and a drill bit 10. One end of the drill rod is connected to the drill bit 10 by a thread, and the other end is connected to the power mechanism 8. Under the action of the power mechanism 8, the drill rod 9 drives the drill bit 10 to rotate and break the front rock surface 11; the laser-mechanical combined drilling tool is installed on the drilling tool mounting seat 7 as a whole.

[0056] The power mechanism, drill bit and other structures can use existing equipment and will not be described in detail here.

[0057] The drilling tool mounting seat can swing up and down, left and right, and at an angle to achieve full-space and multi-angle drilling position adjustment of the drilling rig. Of course, this requires the cooperation of, for example, an angle adjustment mechanism, a lifting mechanism, and a moving mechanism. The above structures can all be applied to the existing technology and will not be described in detail here.

[0058] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the slag removal system consists of a slag removal medium pump group 1, a slag removal pipeline 2, and a slag removal medium transmission channel 103. When drilling and breaking rocks, slag removal liquid or slag removal gas is required for slag removal. The slag removal liquid or slag removal gas is generated by the slag removal medium pump group 1, input into the slag removal medium transmission channel 103 in the drill pipe 9 through the slag removal pipeline 2, and then flows through the position of the drill bit 10 and carries the rock slag and cuttings generated by rock breaking to be output outside the drill pipe, completing the cyclic slag removal function.

[0059] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the laser system consists of a laser 3, an optical fiber 4, a laser head fixed circular tube 101, and a laser head 104. When drilling and breaking rocks, high-energy laser is needed to assist the mechanical drill bit in breaking rocks. The laser is generated by the laser 3 and transmitted to the laser head 104 through the optical fiber. The laser head is placed inside the laser transmission channel 102 and is fixedly connected through the laser head fixed circular tube 101. During the rock breaking process, the drill rod 9 drives the drill bit 10 to rotate and break the rock, and the laser head fixed circular tube 101 fixes the laser head 104 to stop rotating, which solves the problem of dynamic and static separation between the drill rod 9 and the laser head 104 in laser-mechanical synchronous drilling, and prevents the optical fiber 4 from twisting and breaking.

[0060] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the high-pressure medium assisted laser efficient transmission system consists of a high-pressure pump group 5, a high-pressure medium transmission pipeline 6, and a laser transmission channel 102. During the rock breaking process, a large amount of dust and rock debris are generated by the mechanical rock breaking of the drill bit 10, and the transmission efficiency of the high-energy laser in the dust and rock debris environment is greatly reduced. In order to solve the above problem, a high-pressure medium is used to form a clean passage to improve the laser rock breaking efficiency. The high-pressure medium is generated by the high-pressure pump group 5, transmitted to the laser transmission channel 102 located inside the drill pipe 9 through the high-pressure medium transmission pipeline 6, and finally transmitted to the rock surface 11 through the drill bit 10. Under the action of the high-pressure medium, a clean passage is formed from the laser transmission channel 102 to the rock surface 11, and the laser is transmitted to the rock surface 11 through this passage, thereby improving the laser rock breaking efficiency.

[0061] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, a one-way output valve is used to protect the laser head 105. The one-way output valve 105 is located at the front end of the laser transmission channel 102. Its main function is to make the medium in the drill rod 9 flow in one direction to prevent the slag discharge liquid carrying rock slag and cuttings from flowing back to the laser transmission channel 102 and causing damage to the laser head 104. When drilling and breaking rocks, the slag discharge liquid or slag discharge gas carrying rock slag and cuttings often flows back to the inside of the drill rod 9 due to the impact of the drilling slag discharge liquid or slag discharge gas on the rock mass or the blockage of the slag discharge channel, which affects the laser transmission efficiency and the service life of the laser head. Therefore, the one-way output valve 105 is designed in this embodiment to prevent the drilling slag discharge liquid or slag discharge gas from flowing back to the laser transmission channel 102. The one-way output valve 105 is set at the outlet of the laser transmission channel 102.

[0062] In some embodiments of the present invention, the one-way output valve 105 is composed of a baffle 1051 and a spring 1052. When the drilling rig drills into the rock, the high-pressure pump group 5 generates a high-pressure medium, which is transmitted to the laser transmission channel 102 through the high-pressure medium transmission pipeline 6. The high-pressure medium pushes the baffle 1051 in the one-way output valve 105 to open to form a passage, and the laser 3 works and emits high-energy laser to break the rock; when the drilling rig stops breaking the rock, the high-pressure pump group 5 is closed, and the built-in baffle 1051 of the one-way output valve 102 is closed under the elastic force of the spring 1052, and the slag removal liquid or slag removal gas carrying rock slag and rock cuttings cannot enter the laser transmission pipeline 102 through the one-way output valve 105, thereby protecting the laser head 104 lens group.

[0063] like Figure 3 As shown, in some embodiments of the present invention, the baffle 1051 has a certain length, one end of which abuts against the inner wall of one side of the laser transmission channel 102, and the other end abuts against the inner wall of the other side of the laser transmission channel 102. The baffle 1051 can have various shapes, such as arc, wave, rectangle, etc. One end of the spring 1052 abuts against the inner wall of the laser transmission channel 102, and the other end abuts against the baffle 1051.

[0064] This embodiment can switch between various drilling and rock breaking modes by changing the laser-mechanical coordination mode, including the following rock breaking modes:

[0065] (1) Pure mechanical drilling and rock breaking method: the laser 3 and the high-pressure pump group 5 are turned off, and the slag medium pump group 1 generates slag liquid or slag gas, which is input into the slag medium transmission channel 103 in the drill pipe 9 through the slag pipeline 2, and then flows through the drill bit 10. The power mechanism 8 works, and the drill pipe 9 drives the drill bit 10 to rotate and break the rock. At this time, the slag liquid or slag gas flowing through the drill bit 10 carries the rock cuttings and slag and is discharged from the slag channel outside the drill pipe. The drilling rig only relies on pure mechanical rock breaking.

[0066] (2) Pure laser drilling and rock breaking method: the slag medium pump group 1 and the power mechanism 8 do not work, the drill pipe 9 and the drill bit 10 remain stationary, the laser 3 generates laser light, which is transmitted to the laser head 104 via the optical fiber, and the high-pressure pump group 5 generates high-pressure medium, which is transmitted to the laser transmission channel 102 located inside the drill pipe 9 via the high-pressure medium transmission pipeline 6, and finally transmitted to the rock surface 11 through the drill bit 10. Under the action of the high-pressure medium, a clean passage is formed from the laser transmission channel 102 to the rock surface 11, and the laser is transmitted to the rock surface 11 through this passage. The drilling rig only relies on pure laser to break the rock.

[0067] (3) Laser mechanical synchronous drilling and rock breaking method: When the drilling rig starts working, the laser 3 generates laser light, which is transmitted to the laser head 104 via the optical fiber. The high-pressure pump group 5 generates high-pressure medium, which is transmitted to the laser transmission channel 102 located inside the drill pipe 9 via the high-pressure medium transmission pipeline 6, and finally transmitted to the rock surface 11 through the drill bit 10.

[0068] Under the action of high-pressure medium, a clean passage is formed from the laser transmission channel 102 to the rock surface 11, and the laser is transmitted to the rock surface 11 through this passage; the slag removal medium pump group 1 generates slag removal liquid or slag removal gas, which is input into the slag removal medium transmission channel 103 in the drill pipe 9 through the slag removal pipeline 2, and then flows through the position of the drill bit 10, the power mechanism 8 works, and the drill pipe 9 drives the drill bit 10 to rotate and break the rock. At this time, the slag removal liquid or slag removal gas flowing through the position of the drill bit 10 carries the rock cuttings and slag and is discharged from the slag removal channel outside the drill pipe, and the drill bit 10 and the high-energy laser act on the rock surface 11 at the same time, and the drilling rig relies on laser-mechanical synchronous drilling to break the rock.

[0069] (4) Laser mechanical pre-damage drilling rock breaking method: the slag medium pump group 1 and the power mechanism 8 do not work, the drill pipe 9 and the drill bit 10 remain stationary, the laser 3 generates laser light, which is transmitted to the laser head 104 via the optical fiber, and the high-pressure pump group 5 generates high-pressure medium, which is transmitted to the laser transmission channel 102 located inside the drill pipe 9 via the high-pressure medium transmission pipeline 6, and finally transmitted to the rock surface 11 through the drill bit 10.

[0070] Under the action of high-pressure medium, a clean passage is formed from the laser transmission channel 102 to the rock surface 11, and the laser is transmitted to the rock surface 11 through this passage. The drilling rig first relies on the thermal effect of the laser to cause heat removal and cracks on the rock surface 11, such as molten holes, thermal crack networks, etc., and then turns off the laser 3 and the high-pressure pump group 5. The slag removal medium pump group 1 generates slag removal liquid or slag removal gas, which is input into the slag removal medium transmission channel 103 in the drill pipe 9 through the slag removal pipeline 2, and then flows through the position of the drill bit 10. The power mechanism 8 works, and the drill pipe 9 drives the drill bit 10 to rotate and break the rock. At this time, the slag removal liquid or slag removal gas flowing through the position of the drill bit 10 carries rock cuttings and slag and is discharged from the slag removal channel outside the drill pipe. The rock surface 11 pre-damaged by the laser is mechanically broken by the drill bit 10, and the drilling rig relies on laser mechanical pre-damage to drill and break the rock.

[0071] In the above test method, different models of laser heads 104 can be replaced to change the energy distribution form of the laser, the relative position of the laser head 104 and the drill bit 10 can be changed to adjust the spot diameter, the type of laser 3 can be switched to achieve continuous laser and pulse laser conversion, and the laser 3 can be adjusted to set different laser rock breaking parameters. In addition, laser mechanical pre-damage rock breaking and laser mechanical synchronous rock breaking methods can also be used in combination.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principle of the present invention without creative labor shall be included in the protection scope of the present invention.

Claims

1. A laser drilling machine for continuous and rapid drilling, characterized in that: include: Drilling tool mounting base, used for installing laser-mechanical combined drilling tools; The laser-mechanical combined drilling tool comprises a laser drilling tool and a mechanical drilling tool, wherein the mechanical drilling tool comprises a drill bit, a drill rod and a power mechanism, wherein one end of the drill rod is connected to the drill bit, and the other end is connected to the power mechanism; The laser drilling tool comprises a laser head, a pump unit and a laser, wherein the laser provides laser for the laser head, the laser head is arranged inside the drill rod, and a laser transmission channel is arranged outside the laser head, a one-way output valve is arranged in front of the laser transmission channel and at the front end of the laser head, and the pump unit is used to generate high-pressure medium and transmit it to the laser transmission channel; It also includes a slag removal medium pump group and a slag removal medium transmission channel, wherein the slag removal medium pump group is used to generate a high-pressure slag removal medium, which is transmitted to the slag removal medium transmission channel by a slag removal pipeline, and the slag removal medium transmission channel is sleeved on the outside of the laser transmission channel and the one-way output valve; The one-way output valve includes a baffle and a spring, one end of the spring abuts against the inner wall of the laser transmission channel, and the other end abuts against the baffle, one end of the baffle contacts the inner wall of one side of the laser transmission channel, and the other end contacts the inner wall of the other side of the laser transmission channel; The laser is arranged on the top of a fixed circular tube, and the fixed circular tube is coaxially arranged with the laser transmission channel and the drill rod, and does not rotate together with the drill rod.

2. A laser drilling machine for continuous and rapid drilling as claimed in claim 1, characterized in that: The slag removal medium transmission channel, the laser transmission channel and the drill rod are coaxially arranged.

3. A laser drilling machine for continuous and rapid drilling as claimed in claim 1, characterized in that: The drill rod and the laser transmission channel are coaxially arranged.

4. A laser drilling machine for continuous and rapid drilling as claimed in claim 1, characterized in that: The drilling tool mounting seat is arranged on the moving mechanism, and is arranged on the moving mechanism through an adjustment mechanism, and the adjustment mechanism is used to realize the vertical direction, horizontal direction adjustment and angle adjustment of the drilling tool mounting seat.

5. The laser drilling machine for continuous and rapid drilling as claimed in claim 1, characterized in that: The high-pressure medium is generated by a high-pressure pump unit and is transmitted to the laser transmission channel located inside the drill pipe via a high-pressure medium transmission pipeline.

6. A laser drilling machine for continuous and rapid drilling as claimed in claim 1, characterized in that: The front end of the laser transmission channel is gradually contracted, with a diameter becoming smaller and smaller, and an accommodating cavity is arranged at the end, and a one-way output valve is arranged in the accommodating cavity.

7. A laser drilling machine for continuous and rapid drilling as claimed in claim 1, characterized in that: The laser head is replaceable. By replacing laser heads of different models, the energy distribution form of the laser can be changed, the relative position of the laser head and the drill bit can be changed to adjust the spot diameter. In combination with switching the laser, continuous laser and pulse laser conversion can be achieved, and the laser can be adjusted to set different laser rock breaking parameters.

8. A working method of a laser drilling machine according to any one of claims 1 to 7, characterized in that: The following steps are involved: Use laser-mechanical combined drilling tools to break rock simultaneously or individually; When the high-pressure medium is output, the high-pressure medium pushes the one-way output valve to open to form a passage, and the laser works and emits high-energy laser to break the rock; when the high-pressure medium stops outputting, the one-way output valve closes to prevent rock debris from entering.

9. The working method according to claim 8, characterized in that: When it is necessary to drill in slag removal liquid or slag removal gas for slag removal, the slag removal medium pump group generates slag removal medium, which is input between the drill pipe and the laser transmission channel position, and outputs the slag and rock cuttings produced by rock breaking through the drill bit position to the slag removal channel outside the drill pipe.

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