Geological early warning device for tunnel boring machine

Abstract

The utility model discloses a geological early warning device for a tunneling machine, and belongs to the technical field of tunneling machines. Comprising a stabilizing assembly installed on the heading machine body and an early warning device body installed on the stabilizing assembly. The stabilizing assembly comprises a mounting box mounted on the heading machine body. The early warning device has the advantages that the early warning device body can be stably mounted on the heading machine by the aid of the designed stabilizing components including mounting boxes, clamping plates, air cushions, positioning blocks and the like, and the influence of vibration and impact force generated in excavating procedures of the heading machine on the early warning device body can be effectively reduced owing to damping elements such as the air cushions and reset springs; therefore, the overall stability and reliability of the early warning device are improved; in particular, aiming at key components such as a vibration sensor on the early warning device main body, through multiple damping measures such as a buffer pad, a sponge pad and a reset spring, damage caused by vibration to the key components is effectively reduced, and the stability of measurement precision and sensitivity is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heading machine, especially relates to a geological early warning device for tunnel heading machine. BACKGROUND

[0002] In the tunneling engineering, the heading machine as the key construction equipment, its performance and stability are directly related to the safety and efficiency of the project, with the continuous progress of technology, the heading machine has developed from the traditional mechanical heading to the present large-scale complex equipment integrated with mechanical, electrical, hydraulic and automatic control, which can realize accurate control and efficient operation of the tunneling process;

[0003] However, in the heading process, the geological conditions are often complex and changeable, such as hard rock, weak stratum, underground water, etc., which may have adverse effects on the operation of the heading machine, and even cause safety accidents, therefore, in order to ensure the safety and efficiency of the heading operation, it is necessary to monitor and warn the geological conditions in the heading process in real time.

[0004] The existing geological early warning device is mostly directly installed on the heading machine, this way indeed brings convenience for operation and maintenance, however, during the digging operation of the heading machine, due to the complexity of the geological conditions and the working principle of the heading machine, there will be a large vibration and impact force, these vibration and impact force not only affect the stability of the heading machine, but also cause significant adverse effects on the key components in the geological early warning device, especially the vibration sensor, under the strong vibration generated during the digging process of the heading machine, the vibration sensor may have problems such as increased measurement error, decreased sensitivity and even damage, these problems will cause the early warning device to be unable to accurately monitor the geological changes, so as to fail to timely send the early warning signal, which brings safety hazards to the heading operation. SUMMARY

[0005] The utility model aims at the problems existing in the prior art, provides a geological early warning device for tunnel heading machine.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a geological early warning device for tunnel heading machine, comprising a stabilizing assembly installed on the heading machine body, and an early warning device main body installed on the stabilizing assembly;The stabilizing assembly comprises a mounting box installed on the heading machine body, the inner side of the mounting box is provided with a pair of clamping plates for clamping and fixing the early warning device main body, one side of the pair of clamping plates away from the early warning device main body is provided with an air cushion between the inner side wall of the mounting box, one side of the pair of clamping plates opposite to each other is respectively provided with a plurality of positioning blocks, the early warning device main body is respectively provided with a positioning groove close to the two sides of the pair of clamping plates, the positioning groove is in position with the positioning block, and the opening end of the mounting box is provided with a cover plate.

[0007] By adopting the technical scheme, the stability and accuracy of the early warning device body during the working process of the tunneling machine are ensured, the clamping effect of the clamping plates effectively prevents displacement of the early warning device body due to vibration or impact, thereby ensuring the reliability of the geological early warning, the air cushion provides additional damping effect for the early warning device body, and during the working process of the tunneling machine, the air cushion can absorb and disperse part of the vibration energy, thereby further reducing the influence on the early warning device body and improving the accuracy and stability of the early warning.

[0008] Optionally, a sponge pad is mounted on the side of the mounting box away from the cover plate, and a plurality of return springs are arranged on the inner side of the sponge pad.

[0009] By adopting the technical scheme, the combination design provides additional damping and buffering effect, further protects the early warning device body from vibration and impact, and prolongs the service life of the early warning device body.

[0010] Optionally, a pair of the clamping plates are respectively provided with a buffer pad on the side close to the early warning device body.

[0011] By adopting the technical scheme, the soft material of the buffer pad can further reduce the direct impact of the clamping plate on the early warning device body, thereby improving the safety and stability of the early warning device body.

[0012] Optionally, a plurality of directional blocks are arranged on the outer sides of the pair of clamping plates, and a plurality of directional grooves for sliding of the directional blocks are formed in the inner side walls of the mounting box.

[0013] By adopting the technical scheme, the sliding design enables directional movement of the clamping plates, thereby enabling accurate docking of the positioning blocks and the positioning grooves.

[0014] Optionally, the pair of air cushions are connected through a connecting pipe, one of the air cushions is provided with an air inlet pipe, the other end of the air inlet pipe is connected with an air nozzle, and the air nozzle is mounted on the side wall of the mounting box.

[0015] By adopting the technical scheme, the air inlet amount of the air nozzle can be controlled to adjust the inflation degree of the air cushion, thereby adjusting the clamping force of the clamping plates, the mounting of the early warning device body is more stable, and daily inspection and maintenance are facilitated.

[0016] Optionally, a wire hole is formed in the mounting box for passing of the wires of the early warning device body.

[0017] By adopting the technical scheme, the wire hole is formed in the mounting box for passing of the wires of the early warning device body, the design ensures smooth passing of the wires, avoids entry of dust and water vapor, and ensures normal working of the early warning device body.

[0018] Optionally, the cover plate is connected to the mounting box by fixing bolts.

[0019] By adopting the above technical solution, the cooperation between the cover plate and the fixing bolts ensures the stability of the cover plate and facilitates daily inspection and maintenance.

[0020] Optionally, a sealing gasket is provided between the cover plate and the inner wall of the mounting box.

[0021] By adopting the above technical solution, a sealing gasket is provided between the cover plate and the inner wall of the mounting box. This design ensures the airtightness of the mounting box, prevents dust and moisture from entering, and protects the main body of the warning device from interference and damage from the external environment.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. Through the design of stable components, including mounting boxes, clamps, air cushions, and positioning blocks, the main body of the warning device can be securely installed on the tunneling machine. The inclusion of shock-absorbing elements such as air cushions and return springs effectively reduces the impact of vibrations and impacts generated during tunneling on the main body of the warning device, thereby improving the overall stability and reliability of the warning device. In particular, for key components such as vibration sensors on the main body of the warning device, this invention effectively reduces the damage caused by vibration through multiple shock-absorbing measures such as buffer pads, sponge pads, and return springs, extending the service life and ensuring the stability of measurement accuracy and sensitivity.

[0024] 2. The design of the mounting box makes the installation and removal of the main body of the warning device simple and quick. At the same time, the hinged and bolted connection between the cover and the mounting box ensures both airtightness and facilitates daily inspection and maintenance.

[0025] 3. By adjusting the spacing of the clamping plates, the geological early warning device of this utility model can adapt to early warning device bodies of different sizes and models, thus improving the versatility and flexibility of the device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the connection structure between the tunneling machine and the geological early warning device of this utility model;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the mounting box of this utility model;

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the clamping plate of this utility model.

[0029] In the diagram: 1. Tunneling machine body; 101. Machine body; 102. Connecting arm; 103. Cutterhead; 2. Stabilizing assembly; 21. Mounting box; 211. Sponge pad; 212. Return spring; 213. Orientation groove; 214. Cable hole; 22. Clamping plate; 221. Buffer pad; 222. Orientation block; 23. Air cushion; 231. Air inlet pipe; 232. Air nozzle; 24. Positioning block; 25. Positioning groove; 26. Cover plate; 3. Warning device body. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] like Figure 1 As shown in Figure 3, the specific scheme of the embodiment is as follows: A geological early warning device for a tunnel boring machine includes a stabilizing component 2 installed on the tunnel boring machine body 1. The tunnel boring machine body 1 includes a machine body and a connecting arm 102 installed on the machine body 101. A cutterhead 103 is provided at one end of the connecting arm 102 away from the machine body 101, and an early warning device body 3 is installed inside the stabilizing component 2. The early warning device body 3 is installed on the connecting arm and includes a seismic wave sensor and an electromagnetic wave sensor. The seismic wave sensor is used to monitor the propagation of seismic waves and determine changes in geological conditions. The electromagnetic wave sensor is used to monitor changes in the underground electromagnetic field and further determine geological conditions. The combined use of the two sensors improves the accuracy and reliability of the early warning.

[0033] When the tunneling machine body 1 encounters the interface of different geological conditions during tunneling, seismic waves will be generated, including P waves and S waves, which propagate in the stratum and produce vibrations on the ground or near the tunneling machine. The seismic wave sensor can detect these vibrations and convert them into electrical signals for transmission and processing. By analyzing parameters such as frequency, amplitude, and propagation speed of seismic waves, the seismic wave sensor can determine changes in geological conditions, such as the presence of faults, weak strata, or water-bearing layers, and other potential geological disaster risks.

[0034] During tunneling, when the geological conditions change, the underground electromagnetic field will also change accordingly. The electromagnetic wave sensor can capture these changes in real time and further determine the changes in geological conditions by analyzing characteristics such as the strength, frequency, and distribution of the electromagnetic field.

[0035] When both sensors detect abnormal signals, or one of the sensors detects a severe abnormal signal, the warning device body 3 will immediately issue a warning signal to alert the operator to pay attention and take appropriate measures to avoid or reduce the occurrence of geological disasters.

[0036] The stabilizing assembly 2 includes a mounting box 21 installed on the tunneling machine body 1, which serves as the mounting base for the warning device body 3, providing a stable support environment. The open end of the mounting box 21 is provided with a cover plate 26, which is connected to the mounting box 21 by fixed bolts. The bolt connection between the cover plate 26 and the mounting box 21 ensures airtightness, preventing dust and moisture from entering, and facilitates daily inspection and maintenance work. The cover plate 26 protects the warning device body 3 from external environmental interference and damage. A sealing gasket is provided between the cover plate 26 and the inner side wall of the mounting box 21.

[0037] A sponge pad 211 is installed on the side of the mounting box 21 away from the cover plate 26. The sealing gasket ensures airtightness, and the design of the cover plate 26 makes it easier to open and close. The inner side of the sponge pad 211 is provided with a plurality of return springs 212. One side of the sponge pad 211 is attached to the warning device body 3. The sponge pad 211 and the return springs 212 provide additional shock absorption, further reducing the impact of vibrations on the warning device body 3. When the tunneling machine produces vibrations, the sponge pad 211 and the return springs 212 can absorb and disperse the vibration energy, protecting the warning device body 3 from damage. At the same time, when the fixing device of the warning device body 3 is released, the compressed return springs 212 can eject the warning device body 3, making it convenient to remove. Wire holes 214 are provided on the mounting box 21 for the wires of the warning device body 3 to pass through. The wire holes 214 allow the wires of the warning device body 3 to pass through, facilitating the connection of the warning device body 3 with the tunneling machine control system. The design of the wire holes 214 ensures smooth passage of the wires and prevents dust and moisture from entering.

[0038] The inner side of the mounting box 21 is provided with a pair of clamping plates 22 for clamping and fixing the early warning body 3, one side of the pair of clamping plates 22 close to the early warning body 3 is respectively provided with a buffer pad 221, and the outer side of the pair of clamping plates 22 is provided with a plurality of directional blocks 222.

[0039] One side of the pair of clamping plates 22 away from the early warning body 3 is respectively provided with an air cushion 23 between the inner side wall of the mounting box 21, the pair of air cushions 23 are connected through a connecting pipe, one of the air cushions 23 is provided with an air inlet pipe 231, the other end of the air inlet pipe 231 is connected with an air nozzle 232, the air nozzle 232 is installed on the side wall of the mounting box 21, and the clamping force of the clamping plate 22 is adjusted through inflation and deflation of the air cushion 23, so that the stability of the early warning body 3 is further ensured. Meanwhile, the air cushion 23 also has a certain damping effect, and by controlling the air inlet amount of the air nozzle 232, the inflation degree of the air cushion 23 can be adjusted, so that the clamping force of the clamping plate 22 is adjusted.

[0040] One side of the pair of clamping plates 22 opposite to each other is respectively provided with a plurality of positioning blocks 24, and the early warning body 3 is provided with a positioning groove 25 close to the two sides of the pair of clamping plates 22.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A geological warning device for a tunnel boring machine, characterized in that The application relates to a pre-warning device for a tunneling machine, which comprises a stabilizing assembly installed on a tunneling machine body and a pre-warning device body installed on the stabilizing assembly; the stabilizing assembly comprises a mounting box installed on the tunneling machine body, and a pair of clamping plates are arranged on the inner side of the mounting box to clamp and fix the pre-warning device body; one side of the pair of clamping plates away from the pre-warning device body is provided with air cushions between the side and the inner side wall of the mounting box; one side of the pair of clamping plates opposite to the side provided with the air cushions is respectively provided with a plurality of positioning blocks; the pre-warning device body is provided with positioning grooves close to the two sides of the pair of clamping plates; the positioning grooves are in position connection with the positioning blocks; and the opening end of the mounting box is provided with a cover plate.

2. A geological warning device for a tunnel boring machine according to claim 1, characterized in that: One side of the mounting box away from the cover plate is provided with a sponge pad, and the inner side of the sponge pad is provided with a plurality of return springs; and one side of the sponge pad is attached to the pre-warning device body.

3. The geological warning device for a tunnel boring machine according to claim 1, characterized in that: One side of the pair of clamping plates close to the pre-warning device body is respectively provided with a buffer pad.

4. The geological warning device for a tunnel boring machine according to claim 1, characterized in that: The outer side of the pair of clamping plates is provided with a plurality of orientation blocks, and the inner side wall of the mounting box is provided with a plurality of orientation grooves for the orientation blocks to slide.

5. The geological warning device for a tunnel boring machine of claim 1, wherein: The pair of air cushions are connected through a connecting pipe, one of the air cushions is provided with an air inlet pipe, the other end of the air inlet pipe is connected with an air nozzle, and the air nozzle is installed on the side wall of the mounting box.

6. A geological warning device for a tunnel boring machine according to claim 1, characterized in that: The mounting box is provided with wire holes for the wires of the pre-warning device body to pass through.

7. The geological warning device for a tunnel boring machine of claim 1, wherein: The cover plate is connected with the mounting box through fixing bolts.

8. The geological warning device for a tunnel boring machine of claim 1, wherein: The cover plate and the inner side wall of the mounting box are provided with sealing pads.

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