Shield tunneling machine cutter wear detection device

Abstract

The utility model discloses a shield tunneling machine cutter wear detection device, which comprises a box body, a spring, a bracket, a roll shaft, a pressing sensor and a controller, and is characterized in that the box body is detachably arranged in a mounting groove formed in a shield tunneling machine cutter head; one end of the spring is connected with the box body, and the other end of the spring is connected with the bracket; the support is slidably connected with the box body, and one end of the support extends into the box body and is provided with a limiting block. The roll shaft is rotationally arranged at the other end of the support and abuts against the cutter body rotationally arranged in the mounting groove; the pressing sensor is arranged in the box body, and the limiting block abuts against the pressing sensor in a pressing mode. And the controller is connected with the pressing sensor. Therefore, the abrasion detection of the cutter can be realized without stopping the machine to open the bin for inspection, so that the safety risk of the bin opening inspection is avoided, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel boring machine cutters, and in particular to a tunnel boring machine cutter wear detection device. Background Technology

[0002] The shield cutterhead is one of the most important components of a tunnel boring machine (TBM). It typically consists of multiple blades and its main function is to perform cutting and tunneling operations during the excavation process. During tunneling, the shield cutterhead will experience varying degrees of wear. If the wear condition is not promptly monitored and addressed, it will severely impact the TBM's tunneling efficiency and construction safety, causing delays in the project schedule.

[0003] In the original methods for detecting wear of tunnel boring machine cutters, the method of opening the tunnel for inspection is usually adopted. Opening the tunnel for inspection is the most direct method, but it requires stopping the tunnel boring machine, which not only delays the construction progress, but also poses certain safety risks. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a shield tunneling machine cutter wear detection device that can detect cutter wear without stopping the machine and opening the tunnel, thereby avoiding the safety risks of opening the tunnel for inspection and improving construction efficiency.

[0006] To achieve the above objectives, this utility model proposes a shield tunneling machine cutter wear detection device, comprising a housing, a spring, a bracket, a roller, a pressure sensor, and a controller. The housing is detachably mounted in a mounting slot on the shield tunneling machine cutterhead. One end of the spring is connected to the housing, and the other end is connected to the bracket. The bracket is slidably connected to the housing, with one end extending into the housing and equipped with a limit block. The roller is rotatably mounted at the other end of the bracket and abuts against the cutter body rotatably mounted in the mounting slot. The pressure sensor is mounted inside the housing, and the limit block presses against the pressure sensor. The controller is connected to the pressure sensor.

[0007] This utility model discloses a shield tunneling machine cutter wear detection device that can detect cutter wear without stopping the machine and opening the tunnel chamber for inspection, thereby avoiding the safety risks of opening the tunnel chamber for inspection and improving construction efficiency.

[0008] In addition, the shield machine cutter wear detection device proposed above in this application may also have the following additional technical features:

[0009] Specifically, the roller is equipped with reinforcing ribs.

[0010] Specifically, the rollers and reinforcing ribs are made of wear-resistant materials.

[0011] Specifically, the housing is equipped with mounting blocks, and the mounting blocks have mounting holes.

[0012] Specifically, there are two springs.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the installation structure of the roller and the cutter body according to one embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional view of a tunnel boring machine cutter wear detection device according to an embodiment of the present invention.

[0017] As shown in the figure: 1. Box body; 10. Mounting block; 2. Spring; 3. Bracket; 30. Limiting block; 4. Roller; 40. Reinforcing rib; 5. Press sensor; 6. Cutter body; 7. Cutter disc; 70. Mounting groove. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0019] The shield machine cutter wear detection device of this utility model embodiment is described below with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, the shield machine cutter wear detection device of this utility model embodiment may include a housing 1, a spring 2, a bracket 3, a roller 4, a pressure sensor 5, and a controller.

[0021] The housing 1 is detachably installed in the mounting slot 70 opened on the cutterhead 7 of the tunnel boring machine.

[0022] It is understandable that the detachable connection between the housing 1 and the cutter head 7 facilitates the installation and maintenance of this device.

[0023] As one possible scenario, the housing 1 is bonded and fixed to the cutter head 7, thereby eliminating the need to drill mounting holes in the cutter head 7 and improving the installation efficiency of this device.

[0024] One end of spring 2 is connected to housing 1, and the other end of spring 2 is connected to bracket 3.

[0025] It is understandable that by setting the spring 2, the spring 2 pushes the bracket 3, thereby pushing the roller 4, and ensuring that the roller 4 is in continuous contact with the cutter body 6.

[0026] The bracket 3 is slidably connected to the housing 1, and one end of the bracket 3 extends into the housing 1 and is provided with a limit block 30.

[0027] It is understandable that by setting the limit block 30, one end of the bracket 3 can be prevented from sliding out of the box 1, thus limiting the bracket 3.

[0028] The roller 4 is rotatably mounted at the other end of the bracket 3 and abuts against the cutter body 6, which is rotatably mounted in the mounting groove 70.

[0029] It is understandable that by rotating the roller 4 and the support 3, the friction between the tool body 6 and the roller 4 is reduced, thereby increasing the service life of the roller 4.

[0030] The pressure sensor 5 is installed inside the housing 1, and the limit block 30 presses against the pressure sensor 5. The controller is connected to the pressure sensor 5.

[0031] It should be noted that the pressure sensor 5 described in this embodiment is a common pressure-type sensor component on the market, which can transmit the pressure signal to the controller. It will not be described in detail here. In addition, the pressure sensor 5 and the controller are electrically connected through wires, and the connection method is also a common circuit connection method in daily life. It will not be described in detail here either.

[0032] Understandably, by setting the limit block 30 to press against the pressure sensor 5, when the tool body 6 gradually wears to the critical point, the spring 2 pushes the bracket 3 and roller 4 to continuously abut against the tool body 6, so that the limit block 30 gradually abuts against the pressure sensor 5. When the tool body 6 wears to the critical point, the limit block 30 and the pressure sensor 5 are in abutting state, thereby transmitting a signal to the controller. The controller issues an alarm to remind the relevant operators to replace the tool body 6.

[0033] It should be noted that the cutter head 7 described in this embodiment is provided with multiple mounting slots 70 and multiple cutter bodies 6. This device can be installed in each mounting slot 70 and abut against the corresponding cutter body 6, thereby detecting the wear condition of each cutter body 6 on the cutter head 7.

[0034] Specifically, in actual operation, the relevant operators first install the device in the mounting slot 70 of the cutter head 7 and abut against the cutter body 6 respectively. When in use, the cutter head 7 rotates, driving the cutter body 6 to rotate. The cutter body 6 rotates to dig rocks or soil. During long-term use, the cutter body 6 will wear out, which will gradually reduce the diameter of the cutter body 6.

[0035] As the diameter of the tool body 6 gradually decreases, the spring 2 gradually pushes the bracket 3 and the roller 4 toward the tool body 6, thereby ensuring continuous contact between the roller 4 and the tool body 6. When the tool body 6 wears to the critical point, the spring 2 pushes the bracket 3 and the limit block 30 to move, so that the limit block 30 presses against the pressure sensor 5. The pressure sensor 5 transmits the pressing signal to the controller, and the controller issues an alarm to remind the relevant operators to replace the tool body 6. The tool wear detection can be achieved without stopping the machine and opening the chamber for inspection, thereby avoiding the safety risks of opening the chamber for inspection and improving the efficiency of construction.

[0036] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the roller 4 is provided with reinforcing ribs 40.

[0037] It is understandable that the service life of the roller 4 is improved by setting the reinforcing rib 40.

[0038] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the roller 4 and the reinforcing rib 40 are made of wear-resistant material.

[0039] It is understandable that by setting the roller 4 and the reinforcing rib 40 as a wear-resistant layer, the wear resistance and service life of the roller 4 are further improved.

[0040] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a mounting block 10 is provided on the housing 1, and mounting holes are provided on the mounting block 10.

[0041] Understandably, by setting up the mounting block 10, bolts can be used to fix it to the cutter head 7 through the mounting holes, thereby improving the fixing effect of the housing 1.

[0042] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, there are two springs 2.

[0043] It is understandable that by setting up two springs 2, the thrust of the springs 2 is increased, ensuring the contact effect between the roller shaft 4 and the cutter body 6.

[0044] Specifically, in actual operation, the relevant operators first install the device in the mounting slot 70 of the cutter head 7 and abut against the cutter body 6 respectively. When in use, the cutter head 7 rotates, driving the cutter body 6 to rotate. The cutter body 6 rotates to dig rocks or soil. During long-term use, the cutter body 6 will wear out, which will gradually reduce the diameter of the cutter body 6.

[0045] As the diameter of the tool body 6 gradually decreases, the spring 2 gradually pushes the bracket 3 and the roller 4 toward the tool body 6, thereby ensuring the continuous contact between the roller 4 or the reinforcing rib 40 and the tool body 6. When the tool body 6 wears to the critical point, the spring 2 pushes the bracket 3 and the limiting block 30 to move, so that the limiting block 30 presses against the pressing sensor 5. The pressing sensor 5 transmits the pressing signal to the controller, and the controller issues an alarm to remind the relevant operators to replace the tool body 6. The wear detection of the tool can be achieved without stopping the machine and opening the chamber for inspection, thereby avoiding the safety risks of opening the chamber for inspection and improving the efficiency of construction.

[0046] In summary, the shield tunneling machine cutter wear detection device of this utility model can detect cutter wear without stopping the machine and opening the tunnel chamber for inspection, thereby avoiding the safety risks of opening the tunnel chamber for inspection and improving construction efficiency.

[0047] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A shield tunneling machine cutter wear detection device, characterized in that, Includes a housing, springs, brackets, rollers, pressure sensors, and a controller, among which, The housing is detachably installed in the mounting slot opened on the cutterhead of the tunnel boring machine; One end of the spring is connected to the housing, and the other end of the spring is connected to the bracket; The bracket is slidably connected to the box body, and one end of the bracket extends into the box body and is provided with a limit block; The roller is rotatably mounted at the other end of the bracket and abuts against the cutter body rotatably mounted in the mounting groove. The pressure sensor is disposed inside the box, and the limiting block presses against the pressure sensor; The controller is connected to the pressure sensor.

2. The shield machine cutter wear detection device according to claim 1, characterized in that, The roller shaft is provided with reinforcing ribs.

3. The shield machine cutter wear detection device according to claim 2, characterized in that, The roller and the reinforcing rib are made of wear-resistant material.

4. The shield machine cutter wear detection device according to claim 1, characterized in that, The housing is provided with a mounting block, and the mounting block has mounting holes.

5. The shield machine cutter wear detection device according to claim 1, characterized in that, There are two springs.

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