Special drilling machine for quickly constructing horizontal lifesaving channel of roadway

Abstract

The utility model discloses a special drilling machine for quickly constructing a horizontal lifesaving passage of a roadway, which is characterized in that a casing drilling tool and a spiral drilling tool are transported in an assembling process by using a drilling tool transporting device, a hoisting arm is integrated on the drilling machine, and the drilling tools are mounted by matching the drilling tool transporting device with the hoisting arm. A truss type hoisting system does not need to be adopted for assembling the hoisting tool, the whole structure of the drilling machine is simplified, and therefore the drilling machine can be integrally lowered into a well through a conventional cage, the disassembling and assembling process of the truss type hoisting system is omitted, the rescue preparation time is shortened, and the rescue efficiency is improved. And moreover, the casing drilling tool adopts rotation operation, so that the drilling efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine tunnel rapid rescue channel construction, in particular to a special drilling machine for rapidly constructing a horizontal rescue channel in a tunnel. Background Art

[0002] The cross-sectional dimensions (width × height) of coal mine tunnels are usually around 5m × 3m. Affected by the side scraper conveyor, the actual net width of the tunnel is usually less than 4m. Equipment often needs to have smaller external dimensions and operating dimensions for underground transportation and operation. When a tunnel collapses, mechanized rescue equipment is often needed to quickly open a life-saving passage within the "golden 72 hours" of rescue. Mechanized rescue equipment often needs to go through three stages of underground transportation, assembly and commissioning, and rescue construction when it arrives at the collapsed surface for rescue construction. From the perspective of equipment application, the main means to achieve efficient and rapid rescue is to improve the convenience of underground transportation, shorten the time for assembly and commissioning, improve the efficiency of rescue construction, and further meet the requirements of quickly opening a life-saving passage. The existing mechanized rescue equipment for tunnel collapse uses a truss-type lifting system to transport the jacking pipe and the spiral mechanism and assemble them. Affected by the transportation and operating dimensions, the truss-type lifting system needs to be disassembled and transported before assembly. The rescue preparation takes a long time, which affects the rescue efficiency. In addition, the existing mechanized rescue equipment for tunnel collapse mainly adopts the jacking working principle. The hydraulic cylinder drives the jacking pipe forward and the spiral mechanism rotates to break the rock and remove the slag to realize the construction of a life-saving channel. Since the hydraulic cylinder drives the jacking pipe to advance and there is no rotation function, when the drilling depth increases, the drilling efficiency is low due to the resistance of the rock formation, and the equipment is prone to advancement difficulties or even "unable to push". The spiral mechanism is always arranged at the front end of the jacking pipe for rotation and rock breaking. However, when the collapsed body is soft and sticky soil, the spiral mechanism is prone to drill jamming and buried drills, resulting in difficulty in drilling the spiral mechanism. Utility Model Content

[0003] The utility model provides a special drilling rig for quickly constructing a horizontal rescue passage in a tunnel. The utility model adopts a modular design, utilizes a drilling tool transportation device to transport the drilling tools, and realizes the assembly of the drilling tools through a lifting arm on a frame. Compared with the existing truss-type lifting system, the utility model eliminates the disassembly and assembly process of the truss-type lifting system during the transportation down the mine, shortens the rescue preparation time, and improves the rescue efficiency.

[0004] According to one aspect of the present utility model, a special drilling rig for quickly constructing a horizontal rescue passage in a roadway is provided, which includes a crawler chassis, a frame assembly, a lifting arm, a conveyor, a casing driving device, a spiral shaft driving device, a drill tool transporting device, and a motor pump station. The frame assembly is installed on the crawler chassis, and the lifting arm is installed at the front end of the frame assembly for hoisting operations on the casing drill tool and the spiral drill tool. The middle of the crawler chassis is a hollow structure, and the conveyor is fixedly installed on the crawler chassis and located within this hollow structure. The casing driving device and the spiral shaft driving device are installed on the frame assembly front and back respectively, and are used to drive the casing drill tool and the spiral drill tool to perform rotary operations. The spiral drill tool is located inside the casing drill tool and the two are coaxially arranged. The drill tool transporting device is arranged on one side of the crawler chassis and is used to transport the casing drill tool and the spiral drill tool during the assembly process. The motor pump station is connected to the spiral shaft driving device and the drill tool transporting device to provide power.

[0005] Further, the frame assembly includes a front frame and a rear frame. The front frame is connected to the crawler chassis through a flange, and the rear frame is connected to the front frame through a flange. The casing driving device and the spiral shaft driving device are both installed on the front frame.

[0006] Further, the front frame is an I-shaped hollow structure, and driving guide grooves are provided on both sides of the front frame. The casing driving device and the spiral shaft driving device are both installed in the driving guide grooves. Four driving oil cylinders are arranged in a staggered manner on the rear frame, and two of the driving oil cylinders are connected to the casing driving device, and the other two driving oil cylinders are connected to the spiral shaft driving device. The casing driving device and / or the spiral shaft driving device are driven to move back and forth along the driving guide grooves on the front frame through the driving oil cylinders.

[0007] Further, a laser locator is also provided behind the spiral shaft driving device for forming a laser beam inside the casing drill tool to detect the inclination of the drill tool.

[0008] Further, lifting arm mounting seats are provided on both sides of the front end of the front frame.

[0009] Further, a drill tool guide groove is provided at the front end of the front frame for guiding and positioning the casing drill tool.

[0010] Further, horizontal expansion telescopic legs are provided on both sides of the front end of the front frame.

[0011] Further, a clamping device is also provided at the front end of the front frame at the drill tool guide groove for clamping and fixing the drill tool during the assembly of the drill tool.

[0012] Further, a support shoe is provided at the tail of the rear frame to prevent the drilling rig from tilting forward.

[0013] Furthermore, it further includes a guiding device arranged in front of the crawler chassis, and a guiding wheel is arranged on the guiding device for guiding and positioning the casing drill tool.

[0014] The utility model has the following beneficial effects:

[0015] The special drilling rig for quickly constructing a horizontal rescue passage in a roadway of the utility model uses a drill tool transportation device to transport the casing drill tool and the helical drill tool during the assembly process, and the lifting arm is integrated on the drilling rig. The drill tool is installed through the cooperation of the drill tool transportation device and the lifting arm, without using a truss-type hoisting system for the assembly operation of the lifting tool, which simplifies the overall structure of the drilling rig. Thus, the whole drilling rig can be lowered into the well by using a conventional cage, saving the disassembly and assembly process of the truss-type hoisting system, shortening the rescue preparation time, and improving the rescue efficiency. Moreover, the casing drill tool uses rotary operation, which is beneficial to improving the drilling efficiency.

[0016] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the utility model. Description of the Drawings

[0017] The drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0018] Figure 1 is a three-dimensional structural schematic diagram of the special drilling rig for quickly constructing a horizontal rescue passage in a roadway of the preferred embodiment of this application.

[0019] Figure 2 is a top-view structural schematic diagram of the special drilling rig for quickly constructing a horizontal rescue passage in a roadway of the preferred embodiment of this application.

[0020] Figure 3 is a drilling schematic diagram of the special drilling rig for quickly constructing a horizontal rescue passage in a roadway of the preferred embodiment of this application when penetrating a soft and collapsed body.

[0021] Figure 4 is a drilling schematic diagram of the special drilling rig for quickly constructing a horizontal rescue passage in a roadway of the preferred embodiment of this application when penetrating a hard rock collapsed body or a steel anchor net.

[0022] Description of the Reference Numerals

[0023] 1. Crawler chassis; 2. Frame assembly; 3. Lifting arm; 4. Transporter; 5. Casing driving device; 6. Auger shaft driving device; 7. Drill tool transporting device; 8. Motor pump station; 9. Guiding device; 100. Casing drill tool; 200. Auger drill tool; 21. Front frame; 22. Rear frame; 23. Lifting arm mounting seat; 24. Horizontally extending telescopic outrigger; 25. Clamping device; 26. Shoe; 221. Driving oil cylinder; 210. Driving guide groove; 81. Motor power unit; 82. Hydraulic power unit; 83. Operation control unit. Detailed implementation manners

[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] Refer to Figure 1 and Figure 2, a preferred embodiment of the present application provides a special drilling rig for quickly constructing a horizontal rescue passage in a roadway, which includes a crawler chassis 1, a frame assembly 2, a lifting arm 3, a conveyor 4, a casing driving device 5, a spiral shaft driving device 6, a drill tool transporting device 7, and a motor pump station 8. Among them, the crawler chassis 1 serves as the traveling mechanism and support mechanism of the drilling rig, and can be connected to the motor pump station 8 to realize the self-traveling and position adjustment of the drilling rig, improving the operation flexibility of the drilling rig. The frame assembly 2 is installed on the crawler chassis 1, and the lifting arm 3 is installed at the front end of the frame assembly 2 for hoisting operations on the casing drill tool 100 and the spiral drill tool 200. The middle of the crawler chassis 1 is a hollow structure, and the conveyor 4 is fixedly installed on the crawler chassis 1 and located within this hollow structure. The casing driving device 5 and the spiral shaft driving device 6 are installed front and rear on the frame assembly 2 and located above the conveyor 4, respectively used to drive the casing drill tool 100 and the spiral drill tool 200 to perform rotary operations. The spiral drill tool 200 is located inside the casing drill tool 100 and the two are coaxially arranged. Among them, the casing driving device 5 is connected to the casing drill tool 100 through a double-row plum blossom-shaped torque plug, and the spiral shaft driving device 6 is connected to the spiral drill tool 200 through a hexagonal joint and a pin shaft. Of course, in other embodiments, the joint structure form of the casing drill tool 100 can also adopt a single-row torque plug or a single-row stop groove, and the joint structure form of the spiral drill tool 200 can also adopt a circular or square joint. The drill tool transporting device 7 is arranged on one side of the crawler chassis 1 and is used to transport the casing drill tool 100 and the spiral drill tool 200 during the assembly process. Among them, V-shaped driving rollers are arranged on the drill tool transporting device 7, and the driving stability is good. The motor pump station 8 is connected to the spiral shaft driving device 6 and the drill tool transporting device 7 to provide power. Among them, the casing drill tool 100 is used to form an escape passage for trapped personnel and is composed of double-layer high-strength steel, which is safe and reliable. Alloy teeth are evenly distributed on the first section of the casing drill tool 100, which is convenient for cutting the collapsed body. Each section of the casing drill tool 100 is connected by a parent-child structure and a double-row plum blossom-shaped torque plug, and has strong anti-torsion performance; the spiral drill tool 200 is used for drilling and excavation and spiral slag discharge. Cutting teeth such as cutting teeth, tower-shaped teeth, and bucket-shaped teeth can be installed at the front end of the first section of the spiral drill tool 200 according to the rock formation of the collapsed body, which is convenient for rapid drilling and excavation. A spiral blade is arranged at the rear end of the spiral drill tool 200. Driven by the spiral shaft driving device 6, the muck is discharged onto the conveyor 4 through rotation. Among them, the casing driving device 5 and the spiral shaft driving device 6 preferably adopt hydraulic motors, which can provide large-torque rotary power for the drill tools, can realize forward and reverse rotation and adjust the rotary speed.It can be understood that during the assembly process, the drill tool transportation device 7 is used to transport the casing drill tool 100 and the auger drill tool 200. The lifting arm 3 is integrated on the drilling rig. The drill tool is installed through the cooperation of the drill tool transportation device 7 and the lifting arm 3, without using a truss-type hoisting system for the assembly operation of the lifting tool, which simplifies the overall structure of the drilling rig. Therefore, the drilling rig can be lowered into the well as a whole using a conventional cage, eliminating the disassembly and assembly process of the truss-type hoisting system, shortening the rescue preparation time, and improving the rescue efficiency.

[0026] It can be understood that for the special drilling rig for quickly constructing a horizontal rescue passage in this embodiment, the drill tool transportation device 7 is used to transport the casing drill tool 100 and the auger drill tool 200 during the assembly process. The lifting arm 3 is integrated on the drilling rig. The drill tool is installed through the cooperation of the drill tool transportation device 7 and the lifting arm 3, without using a truss-type hoisting system for the assembly operation of the lifting tool, which simplifies the overall structure of the drilling rig. Therefore, the drilling rig can be lowered into the well as a whole using a conventional cage, eliminating the disassembly and assembly process of the truss-type hoisting system, shortening the rescue preparation time, and improving the rescue efficiency. Moreover, the casing drill tool 100 adopts rotary operation, which is beneficial to improving the drilling efficiency.

[0027] Among them, the frame assembly 2 includes a front frame 21 and a rear frame 22. The front frame 21 is connected to the crawler chassis 1 through a flange. The rear frame 22 is connected to the front frame 21 through a flange. The casing driving device 5 and the auger shaft driving device 6 are both installed on the front frame 21. It can be understood that the front frame 21 and the rear frame 22 adopt a detachable connection method. When it is necessary to lower the well through a small cage, the front frame 21 and the rear frame 22 can be modularly disassembled, which not only ensures the convenience of downhole transportation but also improves the assembly efficiency.

[0028] In addition, the front frame 21 is of an I-shaped hollow structure. The hollow position facilitates the advancement and retraction of the casing driving device 5 and the auger shaft driving device 6, as well as the installation and disassembly of the drilling tools. Driving guide grooves 210 are formed on both sides of the front frame 21. The casing driving device 5 and the auger shaft driving device 6 are both installed in the driving guide grooves 210. Four driving cylinders 221 are arranged in a staggered manner on the rear frame 22. Two of the driving cylinders 221 are connected to the casing driving device 5, and the other two driving cylinders 221 are connected to the auger shaft driving device 6. The casing driving device 5 and / or the auger shaft driving device 6 are driven by the driving cylinders 221 to move back and forth along the driving guide grooves 210 on the front frame 21. Wherein, sliders are provided at the bottoms of the casing driving device 5 and the auger shaft driving device 6, and slide rails are provided in the driving guide grooves 210. The casing driving device 5 and the auger shaft driving device 6 are enabled to move back and forth in the driving guide grooves 210 through the cooperation of the sliders and the slide rails. It can be understood that by forming the driving guide grooves 210 on the front frame 21 and respectively driving the casing driving device 5 and the auger shaft driving device 6 to move back and forth in the driving guide grooves 210 by the driving cylinders 221, the flatness and coaxiality of the driving devices are ensured. Moreover, the casing driving device 5 and the auger shaft driving device 6 are driven by different driving cylinders 221, so that the casing drill 100 and the auger drill 200 can perform independent relative movement or synchronous movement. When penetrating a soft and collapsed body, the casing drill 100 is kept in the front and the auger drill 200 is kept in the rear, and the stable support is formed by the casing drill 100 in advance to prevent the auger drill 200 from being buried and stuck by the soft and collapsed body, as Figure 3 shown; when penetrating a hard rock collapsed body or a steel anchor mesh, the auger drill 200 is kept in the front and the casing drill 100 is kept in the rear, and the hard rock or the anchor mesh is broken by the cutting teeth such as the cutting teeth, tower-shaped teeth, and bucket-shaped teeth at the front end of the auger drill 200, so as to improve the drilling efficiency and the drilling speed, as Figure 4 shown.

[0029] Optionally, a laser locator is further provided behind the auger shaft driving device 6 for forming a laser beam in the casing drill 100 to detect the inclination of the drill. Specifically, the inclination of the drill can be determined through the reflection angle of the laser beam, so as to adjust the drilling attitude at any time, improve the roadway penetration accuracy, and prevent the rescue passage from deviating from the position of the trapped personnel.

[0030] In addition, lifting arm mounting seats 23 are arranged on both sides of the front end of the front frame 21 for mounting the lifting arm 3. During actual rescue, the installation position of the lifting arm 3 can be adjusted according to the actual situation, so as to adjust the installation orientation of the lifting tool according to the actual position of the trapped personnel on site, and the flexibility is better.

[0031] In addition, a drill guide groove is provided at the front end of the front frame 21 for guiding and positioning the casing drill 100, which improves the coaxiality between the drill rig and the driving device. In addition, transverse expansion telescopic outriggers 24 are provided on both sides of the front end of the front frame 21, which is beneficial to expanding the support area of the drill rig, ensuring that the drill rig can stably hoist the drill while drilling, improving the operation stability. At the same time, the transverse expansion telescopic outriggers 24 are beneficial to adjusting the posture of the drill rig and ensuring the drilling accuracy. In addition, the transverse expansion telescopic outriggers 24 are also provided on one side or both sides of the rear frame 22.

[0032] In addition, a clamping device 25 is further provided at the front end of the front frame 21 at the drill guide groove for clamping and fixing the drill during the assembly of the drill to prevent the drill from shaking and ensuring the coaxiality of the drill installation. Among them, the clamping device 25 includes a clamping oil cylinder and a plurality of clamping teeth, and the plurality of clamping teeth are driven by the clamping oil cylinder to clamp or release the drill.

[0033] In addition, a support shoe 26 is provided at the tail of the rear frame 22, which can resist the dead weight of the drill and is used to prevent the drill rig from tilting forward. The support shoe 26 is installed at the tail of the rear frame 22 through a flange, which is convenient for disassembly and assembly. Among them, the support shoe 26 can be of a mechanical type or an oil cylinder type.

[0034] In addition, the special drill rig for quickly constructing a horizontal life-saving passage in a roadway further includes a guiding device 9 provided in front of the crawler chassis 1. A guiding wheel is provided on the guiding device 9 for guiding and positioning the casing drill 100. Among them, the height of the guiding wheel can be adjusted to be suitable for drills of different diameters. For example, the guiding wheel is installed on a lifting platform, and the height of the guiding wheel is adjusted by lifting the lifting platform.

[0035] In addition, the motor pump station 8 is the power source of the drill rig, which includes a motor power unit 81, a hydraulic power unit 82 and an operation control unit 83. The motor pump station 8 can be transported by a flatbed truck or integrated on the rear frame 22. The motor power unit 81 is used to drive the hydraulic pump of the hydraulic power unit 82 to work. A hydraulic quick connector is provided at the front end of the hydraulic power unit 82, which can be quickly connected to the hydraulic control module and the hydraulic quick interface provided in the middle area at the rear of the rear frame 22, so as to provide hydraulic power for the hydraulic motors of the casing driving device 5 and the spiral shaft driving device 6. The operation control unit 83 can collect drilling information in real time, display drilling parameters, and can also realize manual drilling and one-key automatic drilling functions, and can control the drill rig to work through an operation panel or a wireless remote controller.

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A special drilling rig for quickly constructing a horizontal rescue passage in a tunnel, characterized in that: The invention comprises a crawler chassis (1), a frame assembly (2), a lifting arm (3), a conveyor (4), a casing driving device (5), a screw shaft driving device (6), a drilling tool conveyor (7) and a motor pump station (8), wherein the frame assembly (2) is mounted on the crawler chassis (1), the lifting arm (3) is mounted at the front end of the frame assembly (2) and is used for lifting casing drilling tools (100) and screw drilling tools (200), the middle of the crawler chassis (1) is a hollow structure, the conveyor (4) is fixedly mounted on the crawler chassis (1) and is located in the hollow structure, and the conveyor (4) is fixedly mounted on the crawler chassis (1) and is located in the hollow structure. The casing driving device (5) and the screw shaft driving device (6) are installed on the frame assembly (2) front and rear, and are respectively used to drive the casing drilling tool (100) and the screw drilling tool (200) to perform a rotation operation. The screw drilling tool (200) is located inside the casing drilling tool (100) and the two are coaxially arranged. The drilling tool transportation device (7) is arranged on one side of the crawler chassis (1) and is used to transport the casing drilling tool (100) and the screw drilling tool (200) during the assembly process. The motor pump station (8) is connected to the screw shaft driving device (6) and the drilling tool transportation device (7) to provide power.

2. The special drilling rig for quickly constructing a horizontal rescue passage in a tunnel as claimed in claim 1, characterized in that: The frame assembly (2) comprises a front frame (21) and a rear frame (22); the front frame (21) is connected to the crawler chassis (1) via a flange, the rear frame (22) is connected to the front frame (21) via a flange, and the sleeve drive device (5) and the screw shaft drive device (6) are both mounted on the front frame (21).

3. The special drilling rig for quickly constructing a horizontal rescue passage in a tunnel as claimed in claim 2, characterized in that: The front frame (21) is an I-shaped hollow structure. Drive guide grooves (210) are provided on both sides of the front frame (21). The sleeve drive device (5) and the screw shaft drive device (6) are both installed in the drive guide grooves (210). Four drive cylinders (221) are arranged alternately on the rear frame (22), two of which are connected to the sleeve drive device (5), and the other two are connected to the screw shaft drive device (6). The sleeve drive device (5) and / or the screw shaft drive device (6) are driven by the drive cylinders (221) to move forward and backward along the drive guide grooves (210) on the front frame (21).

4. The special drilling rig for quickly constructing a horizontal rescue passage in a tunnel as claimed in claim 2, characterized in that: A laser locator is also arranged behind the screw shaft driving device (6) for forming a laser beam in the casing drilling tool (100) to detect the inclination of the drilling tool.

5. The special drilling rig for quickly constructing a horizontal rescue passage in a tunnel as claimed in claim 2, characterized in that: Both sides of the front end of the front vehicle frame (21) are provided with lifting arm mounting seats (23).

6. The special drilling rig for quickly constructing a horizontal rescue passage in a tunnel as claimed in claim 3, characterized in that: The front end of the front vehicle frame (21) is provided with a drilling tool guide groove for guiding and positioning the casing drilling tool (100).

7. The special drilling rig for quickly constructing a horizontal rescue passage in a tunnel as claimed in claim 2, characterized in that: Transversely extending telescopic legs (24) are provided on both sides of the front end of the front frame (21).

8. The special drilling rig for quickly constructing a horizontal rescue passage in a tunnel as claimed in claim 6, characterized in that: The front end of the front vehicle frame (21) is also provided with a clamping device (25) at the drill tool guide groove, which is used to clamp and fix the drill tool when assembling the drill tool.

9. The special drilling rig for quickly constructing a horizontal rescue passage in a tunnel as claimed in claim 2, characterized in that: The tail of the rear frame (22) is provided with a support shoe (26) for preventing the drilling rig from tilting forward.

10. The special drilling rig for quickly constructing a horizontal rescue passage in a tunnel as claimed in claim 1, characterized in that: It also comprises a guide device (9) arranged in front of the crawler chassis (1), and the guide device (9) is provided with a guide wheel for guiding and positioning the casing drilling tool (100).

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