Tunnel intersection fixed-point tunneling device

Abstract

The invention discloses a tunnel intersection fixed-point tunneling device, and relates to the technical field of tunnel engineering, the tunnel intersection fixed-point tunneling device comprises a tunneling machine, a laser emitting device and a laser receiver, the laser emitting device is used for being fixedly installed at the center of a roadway intersection, and the laser receiver is installed on the tunneling machine; the laser receiver captures the light spot position deviation of the laser emitting device in real time, a deviation correction instruction is generated through a control platform of the heading machine, the heading machine is controlled to steer through a driving system of the heading machine, and it is ensured that the heading direction is accurately aligned with a target roadway.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel engineering, and particularly to a fixed-point tunneling device at a tunnel intersection. Background Art

[0002] Tunneling at roadway intersections is a key link in underground mines and tunnel engineering, and its construction accuracy directly affects the quality of roadway connection and construction safety. Traditional tunneling equipment faces multiple technical bottlenecks during intersection construction. Manual measurement relies on experience and visual positioning, and is easily interfered by dust and vibration. Especially at multi-directional intersections, the tunneling machine needs to frequently adjust its direction, resulting in low manual calibration efficiency and serious error accumulation. Existing guiding systems mostly use a single laser beam or mechanical inclination sensors, and it is difficult to maintain straight-line accuracy under dynamic conditions such as the cutting vibration of the tunneling machine and the deformation of soft rock on the floor, and repeated shutdowns for calibration are required. The positioning, direction adjustment, and cutting actions of the tunneling machine rely on manual step-by-step operations, and there is a lack of linkage between the hydraulic system and the guiding device, resulting in delayed deviation correction response and poor construction continuity. Summary of the Invention

[0003] The purpose of the present invention is to provide a fixed-point tunneling device at a tunnel intersection to solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above purpose, the present invention provides the following solution:

[0005] The present invention provides a fixed-point tunneling device at a tunnel intersection, including a tunneling machine, a laser emitting device, and a laser receiver. The laser emitting device is used for fixedly installing at the center of the roadway intersection. The laser receiver is installed on the tunneling machine. The laser receiver captures the position deviation of the light spot of the laser emitting device in real time, generates a deviation correction instruction through the control platform of the tunneling machine, and controls the tunneling machine to turn through the drive system of the tunneling machine to ensure that the tunneling direction is accurately aligned with the target roadway.

[0006] Preferably, the laser emitting device includes a fixed base, a first hydraulic device, a control panel, a laser emitter, and a telescopic rod. The hydraulic device is arranged on the top of the fixed base. The telescopic rod is arranged on the top of the hydraulic device. The laser emitter is arranged at the end of the telescopic rod. The first hydraulic device is used for driving the telescopic rod to rotate, and the telescopic rod can horizontally expand and contract to control the horizontal position of the laser emitter.

[0007] Preferably, the first hydraulic device is a hydraulic motor.

[0008] Preferably, the tunneling machine includes a machine base, a driving wheel, a guiding wheel, a leveling device, a drilling device, a dual-axis laser level, and a control platform. The driving wheel and the guiding wheel are arranged at the bottom of the machine base and are used for the walking and steering of the tunneling machine. The leveling device is arranged at the front end of the machine base, the drilling device is arranged at the top of the machine base, the dual-axis laser level is used to monitor the pitching angle of the fuselage in real time, and the control platform is used to control the operation of the tunneling machine.

[0009] Preferably, a hydraulic shock absorber is arranged between the leveling device and the machine base.

[0010] Preferably, the drilling device includes a drill bit, a hydraulic motor, and a hydraulic outrigger. The hydraulic motor is arranged at the top of the hydraulic outrigger, and the vertical height is controlled by the hydraulic outrigger. The drill bit controls the rotary drilling operation through the hydraulic motor.

[0011] Preferably, the laser receiver and the dual-axis laser level are arranged at the top of the machine base.

[0012] The present invention has achieved the following technical effects compared with the prior art:

[0013] The fixed-point tunneling device at the tunnel intersection in the present invention realizes high-precision tunneling at the roadway intersection. A fixed laser transmitter is preset at the intersection to project multiple reference lasers onto the tunneling machine. The on-board receiver analyzes the position deviation of the laser spot and real-time feedbacks the relative position between the tunneling machine and the target roadway. The dual-axis laser level monitors the pitching angle of the fuselage in real time. When the angle exceeds the limit, the control system automatically adjusts the stroke of the hydraulic outrigger to dynamically compensate for the attitude deviation caused by the floor undulation or cutting vibration, ensuring the straight-line axis deviation.

[0014] Furthermore, the fixed laser transmitter supports multi-angle projection, and cooperates with the receiver array to realize rapid switching of the 360° tunneling direction at the intersection without manual resetting of the reference. The level and the hydraulic outrigger form a real-time feedback link, reducing the deviation correction response time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic working structure diagram of the fixed-point tunneling device at the tunnel intersection in the present invention;

[0017] Figure 2 It is a schematic structure diagram of the laser emission device in the present invention;

[0018] Figure 3 This is a schematic structural diagram of the roadheader in the present invention;

[0019] In the figure: 1. Roadheader; 2. Laser emission device; 3. Laser receiver; 4. Fixed base; 5. Hydraulic device 1; 6. Control panel; 7. Laser emitter; 8. Telescopic rod; 9. Machine base; 10. Driving wheel; 11. Guide wheel; 12. Flattening device; 13. Hydraulic shock absorber; 14. Drilling device; 15. Control platform; 16. Drill bit; 17. Hydraulic motor; 18. Hydraulic outrigger; 19. Tunnel. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] The purpose of the present invention is to provide a fixed-point tunneling device at the tunnel intersection to solve the problems existing in the prior art.

[0022] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] The fixed-point tunneling device at the tunnel intersection in this embodiment, as Figures 1-3 shown, includes a roadheader 1, a laser emission device 2, and a laser receiver 3. The laser emission device 2 is used for fixed installation at the center of the tunnel intersection. The laser receiver 3 is installed on the roadheader 1. The laser receiver 3 captures the spot position deviation of the laser emission device 2 in real time, generates a deviation correction instruction through the control platform 15 of the roadheader 1, and controls the turning of the roadheader 1 through the drive system of the roadheader 1 to ensure that the tunneling direction is accurately aligned with the target tunnel.

[0024] In this specific embodiment, the laser emission device 2 includes a fixed base 4, a hydraulic device, a control panel 6, a laser emitter 7, and a telescopic rod 8. The hydraulic device is arranged on the top of the fixed base 4. The telescopic rod 8 is arranged on the top of the hydraulic device. The laser emitter 7 is arranged at the end of the telescopic rod 8. The hydraulic device is used to drive the telescopic rod 8 to rotate, and the telescopic rod 8 can horizontally expand and contract to control the horizontal position of the laser emitter 7. The laser emitter 7 realizes multi-angle laser emission through the control of the hydraulic device 1 and the telescopic rod 8.

[0025] In this specific embodiment, the hydraulic device 5 is a hydraulic motor.

[0026] In this specific embodiment, the tunneling machine 1 includes a machine base 9, a drive wheel 10, a guide wheel 11, a leveling device 12, a drilling device 14, a dual-axis laser level, and a control platform 15. The drive wheel 10 and the guide wheel 11 are arranged at the bottom of the machine base 9 and are used for the walking and steering of the tunneling machine 1. The leveling device 12 is arranged at the front end of the machine base 9. The drilling device 14 is arranged on the top of the machine base 9. The control platform 15 is used to control the operation of the tunneling machine. The dual-axis laser level is used to monitor the pitch angle of the fuselage in real time. When the angle exceeds the limit, the control system automatically adjusts the stroke of the hydraulic support leg 18 to dynamically compensate for the attitude deviation caused by the undulation of the bottom plate or the cutting vibration, and ensure the deviation of the straight-line axis.

[0027] In this specific embodiment, a hydraulic shock absorber 13 is arranged between the leveling device 12 and the machine base 9. The hydraulic shock absorber 13 can absorb and dissipate the impact energy to prevent the tunneling machine from being damaged during tunneling.

[0028] In this specific embodiment, the drilling device 14 includes a drill bit 16, a hydraulic motor 17, and a hydraulic support leg 18. The hydraulic motor 17 is arranged on the top of the hydraulic support leg 18, and the vertical height is controlled by the hydraulic support leg 18. The drill bit 16 controls the rotary drilling operation through the hydraulic motor 17.

[0029] In this specific embodiment, the laser receiver 3 and the dual-axis laser level are arranged on the top of the machine base 9.

[0030] The method of using the fixed-point tunneling device at the tunnel intersection in the present invention is as follows:

[0031] The multi-angle laser emission device 2 is fixedly installed at the center of the roadway intersection to cover all tunneling directions. The tunneling machine 1 is equipped with a laser receiver 3, a dual-axis laser level, and a vibration sensor. The target parameters (such as tunneling angle, depth) are input through the control panel 6 to complete the calibration. After starting, the laser receiver 3 captures the position deviation of the light spot in real time, the control platform 15 generates a deviation correction instruction, and the hydraulic system automatically adjusts the steering of the drive wheel 10 and the guide wheel 11 to ensure that the tunneling direction is accurately aligned with the target roadway.

[0032] During tunneling, the dual-axis laser level continuously monitors the pitch angle of the fuselage, and the hydraulic support leg 18 dynamically compensates for the attitude deviation caused by the deformation or vibration of the bottom plate. The drill bit 16 is driven by the hydraulic motor 17 to advance. If the laser path is blocked by an obstacle, switch to the single-sided measurement mode to maintain the positioning function. After construction, regularly check the laser projection angle, the pressure of the hydraulic oil circuit, and the sensitivity of the sensor to ensure the long-term stable operation of the system.

[0033] Material selection:

[0034] The overall outer sealing device mainly uses carbon structural steel and alloy structural steel materials

[0035] The working principle is as follows:

[0036] This device projects multi-angle reference laser onto the roadheader 1 through the fixed laser emitter 7. The on-board laser receiver 3 analyzes the position deviation of the light spot, and combines with the control algorithm to calculate the relative position between the roadheader 1 and the target roadway in real time, achieving millimeter-level positioning accuracy. The dual-axis laser level monitors the pitch angle of the fuselage, and the hydraulic support legs 18 dynamically adjust the stroke according to the angle deviation to compensate for the attitude deviation and ensure the stability of the straight line axis. The hydraulic system cooperatively controls the steering of the drive wheel 10 and the guide wheel 11. At the same time, the vibration data of the drill bit 16 is fed back to the hydraulic propulsion unit, and the pressure is adaptively adjusted to reduce the vibration interference. The hydraulic motor 17 precisely controls the feed speed and cutting depth of the drill bit 16, and finally realizes the high-precision and continuous roadway intersection tunneling operation.

[0037] This device projects multi-angle reference laser through the laser emitter 7 fixed at the roadway intersection to form a positioning light network covering 360°. The receiver on the roadheader 1 captures the position deviation of the light spot in real time and generates a deviation correction instruction. The hydraulic system automatically adjusts the steering angles of the drive wheel 10 and the guide wheel 11 accordingly to achieve high-precision dynamic adjustment of the tunneling direction.

[0038] The dual-axis laser level continuously monitors the pitch angle of the fuselage. When the attitude exceeds the limit, the hydraulic support legs 18 dynamically compensate for the offset caused by the floor undulation or cutting vibration through stroke adjustment to maintain the straight line axis.

[0039] In this invention, specific examples are used to elaborate the principle and implementation manner of the invention. The description of the above embodiments is only used to help understand the method and its core idea of the invention; at the same time, for those of ordinary skill in the art, according to the idea of the invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the invention.

Claims

1. A fixed-point tunneling device at the tunnel intersection, characterized in that: It includes a roadheader, a laser emitting device and a laser receiver. The laser emitting device is used to be fixedly installed at the center of the roadway intersection. The laser receiver is installed on the roadheader. The laser receiver captures the position deviation of the light spot of the laser emitting device in real time, generates a deviation correction instruction through the control platform of the roadheader, and controls the turning of the roadheader through the drive system of the roadheader to ensure that the tunneling direction is accurately aligned with the target roadway.

2. The fixed-point tunneling device at the tunnel intersection according to claim 1, wherein: The laser emitting device includes a fixed base, a hydraulic device 1, a control panel, a laser emitter and a telescopic rod. The hydraulic device is arranged on the top of the fixed base. The telescopic rod is arranged on the top of the hydraulic device. The laser emitter is arranged at the end of the telescopic rod. The hydraulic device 1 is used to drive the telescopic rod to rotate, and the telescopic rod can horizontally expand and contract to control the horizontal position of the laser emitter.

3. The fixed-point tunneling device at the tunnel intersection according to claim 2, characterized in that: The hydraulic device 1 is a hydraulic motor.

4. The fixed-point tunneling device at the tunnel intersection according to claim 1, characterized in that: The roadheader includes a machine base, drive wheels, guide wheels, a leveling device, a drilling device, a dual-axis laser level and a control platform. The drive wheels and guide wheels are arranged at the bottom of the machine base and are used for the walking and turning of the roadheader. The leveling device is arranged at the front end of the machine base. The drilling device is arranged on the top of the machine base. The dual-axis laser level is used to monitor the pitch angle of the fuselage in real time. The control platform is used to control the operation of the roadheader.

5. The fixed-point tunneling device at the tunnel intersection according to claim 4, wherein: A hydraulic shock absorber is arranged between the leveling device and the machine base.

6. The fixed-point tunneling device at the tunnel intersection according to claim 4, wherein: The drilling device includes a drill bit, a hydraulic motor and a hydraulic support leg. The hydraulic motor is arranged on the top of the hydraulic support leg, and the vertical height is controlled by the hydraulic support leg. The drill bit controls the rotary drilling operation through the hydraulic motor.

7. The fixed-point tunneling device at the tunnel intersection according to claim 4, characterized in that: The laser receiver and the dual-axis laser level are arranged on the top of the machine base.

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