A shield machine cutter wear detection device

Abstract

The utility model relates to shield machine cutter detection technical field, concretely relates to a shield machine cutter wear detection device, including longitudinal displacement device, transverse displacement device, adjusting device and detection device, longitudinal displacement device installs on ground, longitudinal displacement device is used for driving transverse displacement device longitudinal displacement, transverse displacement device installs on longitudinal displacement device, transverse displacement device is used for driving adjusting device transverse displacement, adjusting device installs on transverse displacement device, adjusting device is used for the small -range adjustment of detection device, detection device installs in adjusting device end position, detection device is used for the wear detection of shield machine cutter.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine cutter detection technology, specifically to a tunnel boring machine cutter wear detection device. Background Technology

[0002] Tunnel boring machine (TBM) technology arose to meet the needs of modern transportation, municipal engineering, water conservancy, and underground space development. TBMs advance by cutting through the soil with cutterheads, but these cutters inevitably suffer impact and wear during excavation. Different geological conditions result in significantly different wear levels for the cutters, especially in gravel-bearing strata where roller cutters are required for crushing. These roller cutters are therefore prone to severe wear or impact damage. Once the cutters wear out or break, it directly slows down the overall construction pace; therefore, accurate detection of the wear level of various cutters is crucial. Currently, common inspection methods mainly rely on visual comparison and manual inspection. Visual comparison inspection typically compares the wear condition of the cutting tools with standard images or wear limits. However, due to complex on-site environments, insufficient lighting, mud coverage, and limited viewing angles, the inspection results are prone to significant errors and cannot accurately reflect the actual wear degree of the cutting tools. Furthermore, manual inspection requires professionals to enter the cutterhead and inspect the wear condition of each tool individually. This method is not only inefficient and time-consuming, but also raises concerns about accuracy and safety in complex geological conditions.

[0003] Therefore, this utility model provides a shield machine cutter wear detection device to solve the above problems. Utility Model Content

[0004] The technical problem this invention aims to solve is as follows: Current common inspection methods mainly rely on visual comparison and manual inspection. Visual comparison inspection typically compares the wear condition of the cutting tools with standard images or wear limits. However, due to complex on-site environments, insufficient lighting, mud coverage, and limited viewing angles, the inspection results are prone to significant errors and cannot accurately reflect the actual wear degree of the cutting tools. Furthermore, manual inspection requires professionals to enter the cutterhead and inspect the wear condition of each tool individually. This method is not only inefficient and time-consuming, but also raises concerns about accuracy and safety under complex geological conditions.

[0005] This utility model provides the following technical solution: a shield machine cutter wear detection device, comprising a longitudinal displacement device, a lateral displacement device, an adjustment device, and a detection device. The longitudinal displacement device is installed on the ground and is used to drive the lateral displacement device to move longitudinally. The lateral displacement device is installed on the longitudinal displacement device and is used to drive the adjustment device to move laterally. The adjustment device is installed on the lateral displacement device and is used to make small-range adjustments to the detection device. The detection device is installed at the end of the adjustment device and is used to detect the wear of the shield machine cutter.

[0006] Preferably, the longitudinal displacement device includes a support chassis, a support frame, a displacement groove, a rotating screw, a transmission mechanism, a transmission motor, a displacement block, and a mounting frame. The support chassis is fixed to the ground, and the support frame is symmetrically installed on the support chassis. The support frame has a displacement groove, and the rotating screw is installed in the displacement groove. The transmission mechanism is installed on the top of the rotating screw, and the transmission motor is installed on the transmission mechanism and fixed to the support frame. The displacement block is installed on the rotating screw, and the mounting frame is installed on the displacement block.

[0007] Preferably, the lateral displacement device includes a displacement track, a displacement motor, and a displacement fixing plate. The displacement track is mounted on the mounting frame, the displacement motor is installed inside the displacement track, and the displacement fixing plate is mounted on the displacement motor.

[0008] Preferably, the adjusting device includes a fixed block, a first rotating motor, a first connecting block, a first adjusting arm, a second connecting block, a telescopic rod, a third connecting block, a second adjusting arm, and a second rotating motor. The fixed block is mounted on the displacement fixing plate. The first rotating motor is mounted on the fixed block. The first connecting block is mounted on the output end of the first rotating motor. The first adjusting arm is mounted on the first connecting block. The second connecting block is mounted on the other end of the first adjusting arm. The telescopic rod is mounted on the second connecting block. The third connecting block is mounted on the telescopic rod. The second adjusting arm is mounted on the third connecting block. The second rotating motor is mounted on the second adjusting arm.

[0009] Preferably, a first adjusting motor is installed at one end of the first adjusting arm to adjust the swing angle of the first adjusting arm; a second adjusting motor is installed at the other end of the first adjusting arm to adjust the swing amplitude of the telescopic rod; and a third adjusting motor is installed on the second adjusting arm to adjust the swing amplitude of the second adjusting arm.

[0010] Preferably, the detection device includes a detection box, a detection motor, a detection block, and a detection sensor. The detection box is installed at the output end of the second rotating motor. The detection motor is installed on one side of the detection box. The detection block is installed at the output end of the detection motor. A detection sensor for detecting the degree of tool wear is installed on the detection block.

[0011] Preferably, the shape of the detection block matches the shape of the tool to be detected.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model achieves automated, comprehensive, and high-precision detection of tunnel boring machine cutter wear through the step-by-step linkage of a longitudinal displacement device, a transverse displacement device, an adjustment device, and a detection device: the longitudinal screw drive ensures the detection unit has a large stroke and accurate positioning in the height direction; the transverse track motor enables the detection head to quickly reach any radial position of the cutter; the multi-joint adjustment arm, together with the telescopic rod and multiple sets of rotating motors, can complete multi-degree-of-freedom fine adjustments of pitch, extension, and rotation in a confined space, ensuring that the detection block and the cutter edge shape are closely matched; the shape-matched detection block drives the cutter to rotate synchronously, allowing the integrated sensor to collect the full circumference wear data of the cutter edge at one time, avoiding missed detections and repeated alignment, significantly improving detection efficiency and accuracy. At the same time, the whole structure is compact, resistant to mud and water impact, and easy to maintain, effectively solving the problems of low efficiency, large error, and poor adaptability of traditional manual or visual comparison detection. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the lateral displacement device of this utility model; Figure 3 This is a schematic diagram of the longitudinal displacement device of this utility model; Figure 4 This is a schematic diagram of the adjustment device of this utility model; Figure 5 This is a schematic diagram of the working position of the detection box of this utility model; Figure 6 This is a schematic diagram of the detection device of this utility model; Figure 7 This is a schematic diagram of the detection block of this utility model.

[0015] In the diagram: 1. Longitudinal displacement device; 11. Support chassis; 12. Support frame; 13. Displacement groove; 14. Rotating screw; 15. Transmission mechanism; 16. Transmission motor; 17. Displacement block; 18. Mounting frame; 2. Lateral displacement device; 21. Displacement track; 22. Displacement motor; 23. Displacement fixing plate; 3. Adjustment device; 31. Fixing block; 32. Rotating motor No. 1; 33. Connecting block No. 1; 34. Adjusting arm No. 1; 35. Connecting block No. 2; 36. Telescopic rod; 37. Connecting block No. 3; 38. Adjusting arm No. 2; 39. Rotating motor No. 2; 4. Detection device; 41. Detection box; 42. Detection motor; 43. Detection block; 44. Detection sensor; 5. Adjusting motor No. 1; 6. Adjusting motor No. 2; 7. Adjusting motor No. 3. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely represents some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this utility model is conventionally placed during use. These terms are used only for the convenience of describing this utility model and for 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.

[0019] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] This disclosure aims to address the shortcomings of current common inspection methods, which primarily rely on visual comparison and manual inspection. Visual comparison typically involves comparing the wear condition of the cutting tools with standard images or wear limits. However, due to complex on-site environments, insufficient lighting, mud coverage, and limited viewing angles, the inspection results are prone to significant errors and fail to accurately reflect the actual wear degree of the tools. Furthermore, manual inspection requires professionals to enter the cutterhead and inspect the wear condition of each tool individually. This method is not only inefficient and time-consuming, but also raises concerns about accuracy and safety in complex geological conditions. In view of this, the present disclosure proposes a shield machine cutter wear detection device. Through the step-by-step linkage of the longitudinal displacement device, the lateral displacement device, the adjustment device and the detection device, the device achieves automated, all-round and high-precision detection of shield machine cutter wear: the longitudinal screw drive ensures the detection unit has a large stroke and accurate positioning in the height direction; the lateral track motor enables the detection head to quickly reach any radial position of the cutter; the multi-joint adjustment arm, together with the telescopic rod and multiple sets of rotating motors, can complete multi-degree-of-freedom fine adjustment of pitch, extension, and rotation in a confined space, ensuring that the detection block and the cutter edge shape are closely matched; the shape-matched detection block drives the cutter to rotate synchronously, so that the integrated sensor can collect the full circumference wear data of the cutter edge at one time, avoiding missed detection and repeated alignment, significantly improving detection efficiency and accuracy. At the same time, the whole structure is compact, resistant to mud and water impact, and easy to maintain, effectively solving the problems of low efficiency, large error and poor adaptability of traditional manual or visual comparison detection.

[0021] like Figures 1 to 7 As shown, a shield tunneling machine cutter wear detection device includes a longitudinal displacement device 1, a lateral displacement device 2, an adjustment device 3, and a detection device 4. The longitudinal displacement device 1 is installed on the ground and drives the lateral displacement device 2 to move longitudinally. The lateral displacement device 2 is installed on the longitudinal displacement device 1 and drives the adjustment device 3 to move laterally. The adjustment device 3 is installed on the lateral displacement device 2 and is used to make small-range adjustments to the detection device 4. The detection device 4 is installed at the end of the adjustment device 3 and is used to detect the wear of the shield tunneling machine cutters. Through the step-by-step linkage of longitudinal displacement device 1, transverse displacement device 2, adjustment device 3, and detection device 4, automated, all-round, and high-precision detection of tunnel boring machine cutter wear is achieved. The longitudinal screw drive ensures the detection unit's large stroke and accurate positioning in the vertical direction; the transverse track motor allows the detection head to quickly reach any radial position of the cutter; the multi-joint adjusting arm, in conjunction with the telescopic rod 36 and multiple sets of rotating motors, can perform multi-degree-of-freedom fine adjustments of pitch, extension, and rotation within a confined space, ensuring a tight fit between the detection block 43 and the cutter edge shape; the perfectly fitted detection block 43 drives the cutter to rotate synchronously, allowing the integrated sensor to collect full-circumference wear data of the cutter edge in one go, avoiding missed detections and repeated alignment, significantly improving detection efficiency and accuracy. Simultaneously, the entire system is compact, resistant to mud and water impact, and easy to maintain, effectively solving the problems of low efficiency, large errors, and poor adaptability inherent in traditional manual or visual comparison detection.

[0022] like Figures 1 to 3 As shown, the longitudinal displacement device 1 includes a support base 11, a support frame 12, a displacement groove 13, a rotating screw 14, a transmission mechanism 15, a transmission motor 16, a displacement block 17, and a mounting frame 18. The support base 11 is fixed to the ground and is used to support the longitudinal displacement device 1. The support frame 12 is symmetrically mounted on the support base 11 and is used to mount the rotating screw 14. The displacement groove 13 is formed inside the support frame 12 and is used to limit the displacement block 17. The rotating screw 14 is installed in the displacement groove 13. The rotating screw 14 is used to rotate and drive the displacement block 17 to move within the displacement groove 13; a transmission mechanism 15 is installed on the top of the rotating screw 14, and a transmission motor 16 is installed on the transmission mechanism 15 and the transmission motor 16 is fixed on the support frame 12; the transmission mechanism 15 is used to reduce the output of the transmission motor 16 and then transmit it to the rotating screw 14; the displacement block 17 is installed on the rotating screw 14, and the displacement block 17 is used to drive the mounting frame 18 to move up and down; the mounting frame 18 is installed on the displacement block 17, and the mounting frame 18 is used to drive the lateral displacement device 2 to move up and down; During operation, the operator starts the drive motor 16 of the longitudinal displacement device 1. The motor transmits power to the rotating screw 14 through the transmission mechanism 15, and the rotating screw 14 rotates within the displacement groove 13. As the rotating screw 14 rotates, the displacement block 17 moves longitudinally within the displacement groove 13, causing the mounting frame 18 to move up and down. The movement of the mounting frame 18 further drives the entire lateral displacement device 2 to move longitudinally to the designated position, completing the longitudinal displacement operation. The aforementioned longitudinal displacement device 1 adopts a lead screw drive structure, which converts the rotational motion of the transmission motor 16 into the precise linear movement of the displacement block 17 within the displacement groove 13, and drives the mounting frame 18 and the transverse displacement device 2 it carries to rise and fall as a whole. This achieves large stroke, high precision, and stepless adjustment of the detection unit in the vertical direction. Since the transmission mechanism 15 has a deceleration and torque amplification function, and the displacement groove 13 guides and limits the displacement block 17, it has the beneficial effects of high positioning accuracy, stable operation, strong impact resistance, compact structure, and easy maintenance. It provides a reliable longitudinal position reference for subsequent tool wear detection, significantly improving detection efficiency and accuracy.

[0023] like Figures 1 to 2 As shown, the lateral displacement device 2 includes a displacement track 21, a displacement motor 22, and a displacement fixing plate 23. The displacement track 21 is mounted on the mounting frame 18, and the displacement motor 22 is installed inside the displacement track 21. The displacement fixing plate 23 is installed on the displacement motor 22. The lateral displacement device 2 adopts an integrated structure of "displacement track 21-displacement motor 22-displacement fixing plate 23", directly embedding the displacement motor 22 inside the displacement track 21, eliminating the intermediate transmission chain. It has the advantages of compact structure, small space occupation, fast response speed, and high positioning accuracy. The displacement motor 22 drives the displacement fixing plate 23 to move linearly along the track, which can drive the subsequent adjustment and detection device 4 to achieve precise adjustment of the lateral position. Moreover, the track provides guidance and support for the fixing plate, ensuring smooth operation and strong resistance to eccentric loads, thereby effectively improving the lateral coverage and detection efficiency of tool wear detection.

[0024] like Figures 1 to 4As shown, the adjusting device 3 includes a fixed block 31, a first rotating motor 32, a first connecting block 33, a first adjusting arm 34, a second connecting block 35, a telescopic rod 36, a third connecting block 37, a second adjusting arm 38, and a second rotating motor 39. The fixed block 31 is mounted on the displacement fixing plate 23 and is used to fix the adjusting device 3 to the lateral displacement device 2. The first rotating motor 32 is mounted on the fixed block 31 and is used to control the rotation of the entire adjusting device 3. The first connecting block 33 is mounted on the output end of the first rotating motor 32 and is used to connect the first adjusting arm 34. The first adjusting arm 34 is mounted on the first connecting block 33, and the second connecting block 35 is mounted on the other end of the first adjusting arm 34. The second connecting block 35 is used to connect the second adjusting arm 38 and... Telescopic rod 36; The telescopic rod 36 is installed on the second connecting block 35. The telescopic rod 36 is used to control the extension or retraction of the second adjusting arm 38, thereby completing the adjustment; The telescopic rod 36 is installed on the third connecting block 37; The third connecting block 37 is used to connect the telescopic rod 36 and the second adjusting arm 38. The second adjusting arm 38 is installed on the third connecting block 37. The second adjusting arm 38 is installed on the second adjusting arm 38. The second rotating motor 39 is used to rotate the direction of the adjustment detection device 4; One end of the first adjusting arm 34 is installed with a first adjusting motor 5 to adjust the swing angle of the first adjusting arm 34; The other end of the first adjusting arm 34 is installed with a second adjusting motor 6 to adjust the swing amplitude of the telescopic rod 36; The second adjusting arm 38 is installed with a third adjusting motor 7 to adjust the swing amplitude of the second adjusting arm 38. During operation, the No. 1 rotating motor 32 starts and drives the adjustment device 3 to move to the designated position; at this time, the No. 1 adjustment motor 5 rotates to adjust the tilt angle of the No. 1 adjustment arm 34, and the No. 2 adjustment motor 6 starts to adjust the adjustment angle of the No. 2 connecting block 35 and the telescopic rod 36; while the telescopic rod 36 extends, the No. 3 adjustment motor 7 adjusts the tilt angle of the No. 2 adjustment arm 38. Finally, through the rotation of the No. 2 rotating motor 39, the multi-directional adjustment of the detection device 4 can be realized, thereby enabling the detection of the tunnel boring machine cutter at different positions; Through a multi-stage linkage design, combining a primary rotary motor 32, a primary adjusting motor 5, a secondary adjusting motor 6, a telescopic rod 36, and a tertiary adjusting motor 7, the detection device 4 can be adjusted in all directions and at multiple angles. The primary rotary motor 32 can quickly move the entire adjusting device 3 to the target area, while the primary, secondary, and tertiary adjusting motors 7 control the swing angles of the primary adjusting arm 34, the telescopic rod 36, and the secondary adjusting arm 38, respectively. Combined with the extension and retraction of the telescopic rod 36, the position and orientation of the detection device 4 can be flexibly adjusted. This multi-degree-of-freedom adjustment method allows the detection device 4 to accurately align with the tunnel boring machine cutters at different positions. Even in complex cutterhead structures, it can achieve precise detection of each cutter, significantly improving the flexibility and adaptability of the detection process, while also increasing detection efficiency and accuracy.

[0025] like Figures 1 to 7 As shown, the detection device 4 includes a detection box 41, a detection motor 42, a detection block 43, and a detection sensor 44. The detection box 41 is installed at the output end of the second rotating motor 39 and is used to protect the detection block 43. The detection motor 42 is installed on one side of the detection box 41 and is used to drive the detection block 43 to rotate. The detection block 43 is installed at the output end of the detection motor 42. The rotation of the detection block 43 drives the shield machine cutter to rotate, thereby cooperating with the detection sensor 44 to complete the detection of the wear degree of the shield machine cutter. The detection sensor 44 for detecting the wear degree of the cutter is installed on the detection block 43. With the above design, the detection motor 42 directly drives the detection block 43, so that the cutter is passively rotated during the detection process, thereby realizing continuous scanning of the wear state of the entire circumference of the cutter. The detection sensor 44 integrated on the detection block 43 collects data dynamically, ensuring that the measurement point is always in contact with the cutter surface, and the signal is stable and the data is complete. This structure integrates the functions of "driving, protection, and sampling", which not only improves the detection accuracy and reliability, but also significantly shortens the detection time of a single cutter.

[0026] like Figure 6 As shown, the shape of the detection block 43 matches the shape of the tool to be tested. The detection block 43 matches the shape of the tool, forming surface contact or line contact, so that the detection sensor 44 is always perpendicular and close to the surface being tested, eliminating signal drift caused by gaps and shaking. It can cover the key wear area of ​​the blade in one go, which not only improves the measurement repeatability accuracy, but also avoids multiple retests, significantly shortens the detection time, and achieves fast, accurate and non-destructive wear assessment.

[0027] The overall working process is as follows: The operator starts the drive motor 16 of the longitudinal displacement device 1. After being reduced in speed by the transmission mechanism 15, the motor drives the rotating screw 14 to rotate. The displacement block 17 rises and falls in the displacement groove 13, and drives the mounting frame 18 and its transverse displacement assembly to move to the height of the tool to be inspected. The output shaft of the transverse displacement motor 22 rotates, causing the displacement fixing plate 23 to feed laterally along the displacement track 21, pushing the adjustment device 3 to the front of the target tool. The first rotating motor 32 rotates, aligning the entire adjustment arm with the tool head. Then, the first adjustment motor 5 and the second adjustment motor 6 act synchronously to adjust the tool head and the tool head. Adjusting arm 34 tilts the blade and telescopic rod 36 tilts the blade. As telescopic rod 36 extends, adjusting motor 7 drives adjusting arm 38 to swing down, bringing the detection box 41 close to the outer circumference of the tool. Rotating motor 39 finely adjusts the angle of detection box 41, ensuring that detection block 43 perfectly matches the shape of the tool's cutting edge. Detection motor 42 starts and drives detection block 43 and the tool to rotate slowly together. Detection sensor 44, mounted on detection block 43, collects real-time wear data around the entire circumference of the cutting edge. The data is transmitted back to the host computer via a wireless module. After completing the detection of a single tool, each motor resets in reverse order to continue the automatic detection cycle for the next tool.

[0028] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shield tunneling machine cutter wear detection device, characterized in that, The device includes a longitudinal displacement device (1), a lateral displacement device (2), an adjustment device (3), and a detection device (4). The longitudinal displacement device (1) is installed on the ground and is used to drive the lateral displacement device (2) to move longitudinally. The lateral displacement device (2) is installed on the longitudinal displacement device (1) and is used to drive the adjustment device (3) to move laterally. The adjustment device (3) is installed on the lateral displacement device (2) and is used to make small-range adjustments to the detection device (4). The detection device (4) is installed at the end of the adjustment device (3) and is used to detect the wear of the tunnel boring machine cutters.

2. The shield machine cutter wear detection device according to claim 1, characterized in that: The longitudinal displacement device (1) includes a support chassis (11), a support frame (12), a displacement groove (13), a rotating screw (14), a transmission mechanism (15), a transmission motor (16), a displacement block (17), and a mounting frame (18). The support chassis (11) is fixed on the ground. The support frame (12) is symmetrically installed on the support chassis (11). The displacement groove (13) is opened in the support frame (12). The rotating screw (14) is installed in the displacement groove (13). The transmission mechanism (15) is installed on the top of the rotating screw (14). The transmission motor (16) is installed on the transmission mechanism (15) and the transmission motor (16) is fixed on the support frame (12). The displacement block (17) is installed on the rotating screw (14), and the mounting frame (18) is installed on the displacement block (17).

3. The shield machine cutter wear detection device according to claim 2, characterized in that: The lateral displacement device (2) includes a displacement track (21), a displacement motor (22) and a displacement fixing plate (23). The displacement track (21) is installed on the mounting frame (18). The displacement motor (22) is installed inside the displacement track (21). The displacement fixing plate (23) is installed on the displacement motor (22).

4. The shield machine cutter wear detection device according to claim 3, characterized in that: The adjusting device (3) includes a fixed block (31), a first rotating motor (32), a first connecting block (33), a first adjusting arm (34), a second connecting block (35), a telescopic rod (36), a third connecting block (37), a second adjusting arm (38), and a second rotating motor (39). The fixed block (31) is mounted on the displacement fixing plate (23), and the first rotating motor (32) is mounted on the fixed block (31). The first rotating motor (32) outputs... A first connecting block (33) is installed at one end, a first adjusting arm (34) is installed on the first connecting block (33), a second connecting block (35) is installed at the other end of the first adjusting arm (34), a telescopic rod (36) is installed on the second connecting block (35), a third connecting block (37) is installed on the telescopic rod (36), a second adjusting arm (38) is installed on the third connecting block (37), and a second rotating motor (39) is installed on the second adjusting arm (38).

5. The shield machine cutter wear detection device according to claim 4, characterized in that: One end of the first adjusting arm (34) is equipped with a first adjusting motor (5) for adjusting the swing angle of the first adjusting arm (34); the other end of the first adjusting arm (34) is equipped with a second adjusting motor (6) for adjusting the swing amplitude of the telescopic rod (36); the second adjusting arm (38) is equipped with a third adjusting motor (7) for adjusting the swing amplitude of the second adjusting arm (38).

6. The shield tunneling machine cutter wear detection device according to claim 5, characterized in that: The detection device (4) includes a detection box (41), a detection motor (42), a detection block (43), and a detection sensor (44). The detection box (41) is installed at the output end of the second rotating motor (39). The detection motor (42) is installed on one side of the detection box (41). The detection block (43) is installed at the output end of the detection motor (42). The detection sensor (44) for detecting the degree of tool wear is installed on the detection block (43).

7. The shield tunneling machine cutter wear detection device according to claim 6, characterized in that: The shape of the detection block (43) matches the shape of the tool to be detected.

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