Shield tunneling machine cutter abrasion loss dynamic monitoring device

Abstract

The utility model provides a dynamic monitoring device for abrasion loss of a shield tunneling machine cutter, which is used for solving the problem that the cutter cannot be moved and monitored in real time in the prior art. Comprising a hob, a transverse moving mechanism and a monitoring mechanism, the transverse moving mechanism comprises a straight guide rail parallel to a hob shaft, a transparent baffle fixedly connected with the side face, close to the hob, of the straight guide rail, a protective shell fixedly connected with the side face, away from the hob, of the straight guide rail, a bottom plate, two rollers, two supporting arms and a transverse moving power assembly used for driving the rollers to move; the two ends of the straight guide rail are fixedly connected with a base on the cutter head in an embedded mode, the straight guide rail is perpendicular to one side face of the central axis of the hob and provided with a T-shaped groove in the length direction of the straight guide rail, and the transverse movement power assembly drives the rolling wheels to drive the bottom plate to move in the axial direction of a hob shaft. The monitoring mechanism comprises an abrasion monitor, a fixing column, a control assembly and a rotating assembly which is fixedly connected to the bottom plate and used for controlling the abrasion monitor to rotate. The device can comprehensively monitor the abrasion condition of the hob in real time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of shield machine, especially is involved in a shield machine cutter wear dynamic monitoring device. BACKGROUND

[0002] The shield machine mainly relies on the cutter installed on the cutter head main body to cut and break rock in the tunneling construction. The cutter is prone to abnormal wear when the shield machine passes through sand layer, full-face rock layer and upper-soft lower-hard stratum, and the cutter is prone to collapse, which further causes low tunneling efficiency and high construction cost. Therefore, it is of great significance to comprehensively and efficiently monitor the cutter wear for improving the economy and efficiency of tunnel shield construction.

[0003] At present, the common monitoring methods for cutter wear in tunnel construction mainly include pressure test method, tunneling parameter and slag piece shape analysis method. The pressure monitoring method is to embed a pressure sensor in the scraper cutter head to judge the cutter wear degree by the force on the cutter head, but it changes the original structure of the cutter, thereby affecting the performance of the cutter and increasing the manufacturing cost of the cutter. The tunneling parameter analysis method is to comprehensively analyze and judge the cutter wear by monitoring the thrust, torque and speed of the cutter head through a data acquisition system, but the cutter wear value is difficult to accurately determine. The slag piece shape analysis method is to analyze the shape of the rock slag generated in the tunneling process through image recognition technology, but there are many objective factors affecting the shape of the rock slag, so it is difficult to obtain the cutter wear condition. Therefore, the existing technology cannot conveniently monitor the cutter wear in real time when the cutter is used, which leads to the cutter cannot be replaced in time when the cutter is used, thereby affecting the excavation speed of the shield machine.

[0004] In summary, there is a lack of a device with high sensitivity, strong anti-interference ability and movable and multi-directional real-time monitoring of cutter wear. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a shield machine cutter wear dynamic monitoring device to solve the problem that the cutter wear cannot be monitored in real time in the prior art.

[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides a shield machine cutter wear dynamic monitoring device, which comprises: a cutter and a transverse moving mechanism,

[0007] The horizontal moving mechanism comprises a straight guide rail parallel to the cutter shaft of the roller cutter, a transparent baffle fixed to the straight guide rail close to the side of the roller cutter, a protective shell fixed to the straight guide rail away from the side of the roller cutter, a bottom plate, two rollers, two support arms, a horizontal moving power assembly for driving the rollers to move, the two ends of the straight guide rail are fixedly connected to the base on the cutter head through embedding, the side of the straight guide rail perpendicular to the central axis of the roller cutter has a T-shaped groove along the length direction of the straight guide rail, the two rollers are horizontally and rollingly connected to the horizontal part of the T-shaped groove, the two support arms are vertically and slidably connected to the vertical part of the T-shaped groove, the two rollers are vertically and rotatably connected to one end of the two support arms, and the other end of the two support arms is vertically and fixedly connected to the bottom plate.

[0008] The monitoring mechanism comprises a wear monitoring device, a fixed column, a control assembly arranged in the protective shell, and a rotating assembly fixed to the bottom plate for controlling the rotation of the wear monitoring device, one end of the fixed column is fixedly connected to the rotating assembly, the wear monitoring device is fixed to the fixed column, the monitoring end of the wear monitoring device faces the roller cutter, the wear monitoring device is connected to the control assembly through wireless connection, and the rotating assembly moves along the cutter shaft of the roller cutter by driving the rollers to move through the horizontal moving power assembly.

[0009] Optionally, the horizontal moving assembly comprises a cylinder rotatably arranged in the horizontal part of the T-shaped groove and located at one end of the straight guide rail, a flexible connecting piece, a horizontal moving power piece and an elastic piece, one end of the flexible connecting piece is fixedly connected to the side of one support arm, and the other end of the flexible connecting piece is wound on the cylinder.

[0010] The elastic piece is used for resetting the roller from one end of the cylinder to the other end of the straight guide rail.

[0011] The position of the roller is controlled by driving the cylinder to rotate through the horizontal moving power piece and cooperating with the elastic piece.

[0012] Optionally, the horizontal moving power piece comprises a motor, and the motor is controlled through wireless control.

[0013] Optionally, the flexible connecting piece is a nylon wire or a steel wire rope.

[0014] Optionally, the rotating assembly comprises a workbench, a rotating power piece, a first gear, a second gear and a rotating shaft, the workbench is fixedly connected to the bottom plate, one end of the rotating shaft is rotatably connected to the workbench, the first gear is coaxially and fixedly connected to the rotating shaft, the second gear is rotatably arranged on the workbench, the first gear and the second gear are in meshing transmission, and the other end of the rotating shaft is fixedly connected to the fixed column.

[0015] The rotating power member drives the second gear to rotate to drive the first gear to rotate.

[0016] Optionally, the rotating power member comprises a motor, and the motor is controlled wirelessly.

[0017] Optionally, the control assembly comprises a power supply fixed in the protective shell, a wear monitoring circuit board fixed in the protective shell, a signal receiving route, an indoor acquisition unit and an upper computer arranged in a shield machine operating room, the wear monitoring device is connected with the wear monitoring circuit board in a wireless connection mode, the signal receiving route receives data transmitted by the wear monitoring circuit board in a wireless connection mode, the indoor acquisition unit transmits the data received by the signal receiving route to the upper computer, and the power supply and the wear monitoring circuit board are connected in a wired connection mode.

[0018] Optionally, the wear monitoring device is an eddy current sensor.

[0019] Optionally, an anti-wear shell is arranged outside the eddy current sensor.

[0020] Optionally, the flushing mechanism comprises a nozzle seat and a nozzle, the nozzle seat has two, the two nozzle seats are symmetrically arranged on the side of the rolling cutter close to the transparent baffle and are fixedly connected to the edge of the transparent baffle, the nozzle has two, the two nozzles are fixedly connected with the two nozzle seats respectively, and the nozzle is communicated with an external high-pressure pipeline through the nozzle seat and a flushing channel arranged in the cutter head.

[0021] As described above, the shield machine cutter wear dynamic monitoring device has at least the following beneficial effects:

[0022] The flexible connecting piece converts the rotary motion of the cylinder into the linear motion of the roller in the horizontal part of the T-shaped groove, and the elastic piece cooperates to accurately control the position of the roller; when it is needed to move to one end of the cylinder, the rotation of the cylinder causes the flexible connecting piece to wind on the cylinder, at this time the elastic piece is in a stretched state, and the roller is pulled to the predetermined position; when it is needed to move away from one end of the cylinder, the rotation of the cylinder causes the flexible connecting piece to reduce the winding length on the cylinder, at this time the elastic piece uses the elastic restoring force to pull the roller to the predetermined position; the rolling friction resistance of the roller is small, which is conducive to realizing flexible movement and prolonging the service life, and the cooperation of the T-shaped groove, the roller and the support arm can guarantee good guiding type and stability during the transverse movement along the straight guide rail, so as to accurately control the position of the rotating assembly and the wear monitor, meet the monitoring requirements of different parts of the cutter shaft in the axial direction, flexibly adjust the position of the wear monitor, and then improve the accuracy and comprehensiveness of the monitoring; when the second gear is driven to rotate by the rotary power piece, the first gear can be accurately driven to rotate, so as to rotate the rotating shaft and the fixed column, and then control the rotation angle of the wear monitor, realize accurate angle adjustment, and help to improve the accuracy and comprehensiveness of the wear monitoring of the cutter; the eddy current sensor can accurately measure the wear state in real time, provide reliable monitoring data transmission to the control assembly, the control assembly performs real-time monitoring analysis according to the received data, and triggers an alarm when wear is detected. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is shown as the front view of the utility model;

[0024] Figure 2 It is shown as the top view of the utility model;

[0025] Figure 3 It is shown as the structure schematic diagram of the utility model installed on the shield machine.

[0026] Element number explanation

[0027] Cutter 1, transverse moving mechanism 2, straight guide rail 21, T-shaped groove 211, transparent baffle 22, protective shell 23, bottom plate 24, roller 25, support arm 26, transverse moving force assembly 27, cylinder 271, flexible connecting piece 272, transverse moving force piece 273, elastic piece 274;

[0028] The monitoring mechanism 3, the wear monitoring device 31, the fixing column 32, the control assembly 33, the power supply 331, the wear monitoring circuit board 332, the signal receiving route 333, the indoor acquisition unit 334, the upper computer 335, the rotating assembly 34, the workbench 341, the rotating power element 342, the first gear 343, the second gear 344, the rotating shaft 345;

[0029] The flushing mechanism 4, the nozzle seat 41, the nozzle 42, the base 5. DETAILED DESCRIPTION

[0030] The following specific embodiments illustrate the embodiments of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosed content.

[0031] Please refer to Figures 1 to 3 It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to illustrate the disclosed content, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the disclosed technical content. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present application are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

[0032] The following embodiments are only for illustration. The embodiments can be combined, and are not limited to the content shown in the following single embodiment.

[0033] In the present embodiment, please refer to Figures 1 to 3The utility model provides a kind of shield machine cutter wear amount dynamic monitoring device, comprising: hob 1, horizontal moving mechanism 2 and monitoring mechanism 3, the horizontal moving mechanism 2 includes straight guide rail 21 parallel to the hob 1 cutter shaft, transparent baffle 22 being fixedly connected with the straight guide rail 21 and being close to the hob 1 side face, protective shell 23 being fixedly connected with the straight guide rail 21 and being away from the hob 1 side face, bottom plate 24, two rollers 25, two support arms 26, horizontal moving force component 27 for driving the roller 25 movement, the straight guide rail 21 both ends are fixedly connected by embedding with the base 5 on cutter head, the straight guide rail 21 vertical to the side face of the hob 1 central axis and along own length direction has T slot 211, two the roller 25 is all with the horizontal part rolling fit of T slot 211, two support arms 26 are all with the vertical part sliding fit of T slot 211, two the roller 25 is all with two support arms 26 one end vertical and rotationally connected, two the support arm 26 other end is all with the bottom plate 24 vertical and fixedly connected;Transparent baffle 22 can isolate rock slag, can play the role of protection;

[0034] The monitoring mechanism 3 includes wear monitor 31, fixed column 32, control assembly 33 arranged in the protective shell 23, rotation assembly 34 fixedly connected on the bottom plate 24 for controlling the rotation of the wear monitor 31, one end of the fixed column 32 is fixedly connected with the rotation assembly 34, the wear monitor 31 is fixedly connected on the fixed column 32, the monitoring end of the wear monitor 31 faces the hob 1, the wear monitor 31 is connected with the control assembly 33 through wireless connection, the roller 25 is driven to move by the horizontal moving force component 27 to drive the rotation assembly 34 to move along the hob 1 cutter shaft axial direction.

[0035] The rolling wheel 25 is driven by the horizontal moving force assembly 27 to roll with the horizontal part of the T-shaped groove 211, and the support arm 26 is in sliding fit with the vertical part of the T-shaped groove 211, so that the bottom plate 24 and the rotating assembly 34 fixed on the bottom plate 24 can move along the cutter shaft of the rolling cutter 1 in a stable manner, and the rolling friction resistance of the rolling wheel 25 is small, which is conducive to flexible movement and prolonging the service life, and the cooperation of the T-shaped groove 211 with the rolling wheel 25 and the support arm 26 can ensure good guiding type and stability during the lateral movement along the straight guide rail 21, so as to accurately control the position of the rotating assembly 34 and the wear monitor 31, meet the monitoring requirements of different parts of the cutter shaft of the rolling cutter 1, flexibly adjust the position of the wear monitor 31, and then improve the accuracy and comprehensiveness of the monitoring. The wear monitor 31 is driven to rotate by the rotating assembly 34, so that the wear monitor 31 can monitor the rolling cutter 1 from different angles, so as to obtain more comprehensive wear information, and then more accurately evaluate the wear degree and state of the rolling cutter 1. The wear monitor 31 is wirelessly connected with the control assembly 33, which can not only monitor the wear of the rolling cutter 1 in real time and transmit data to the control assembly 33, but also avoid complicated wiring, so that the structure is more simple, and the space utilization and movement flexibility are improved.

[0036] In the embodiment, please refer to Figure 1 and Figure 2 The horizontal moving assembly includes a cylinder 271 rotatingly arranged in the horizontal part of the T-shaped groove 211 and located at one end of the straight guide rail 21, a flexible connecting piece 272, a horizontal moving force piece 273, and an elastic piece 274. One end of the flexible connecting piece 272 is fixedly connected with a side surface of one support arm 26, and the other end is wound on the cylinder 271.

[0037] The elastic piece 274 is used for resetting the rolling wheel 25 from one end of the cylinder 271 to the other end of the straight guide rail 21. The elastic piece 274 includes a spring, and the two ends of the spring are respectively fixedly connected with a side surface of the other support arm 26 and the straight guide rail 21.

[0038] The cylinder 271 is driven to rotate by the horizontal moving force piece 273, and the position of the rolling wheel 25 is controlled by the cooperation of the elastic piece 274.

[0039] The flexible connecting member 272 converts the rotating motion of the cylinder 271 into the linear motion of the roller 25 in the horizontal part of the T-shaped groove 211, and the elastic member 274 can be used to accurately control the position of the roller 25. When it is needed to move to one end of the cylinder 271, the cylinder 271 rotates to make the flexible connecting member 272 wind around the cylinder 271, at this time, the elastic member 274 is in a stretched state, and pulls the roller 25 to the predetermined position. When it is needed to move away from one end of the cylinder 271, the cylinder 271 rotates to make the flexible connecting member 272 reduce the winding length on the cylinder 271, at this time, the elastic member 274 uses the elastic restoring force to pull the roller 25 to the predetermined position.

[0040] In the embodiment, please refer to Figure 1 and Figure 2 The horizontal moving force member 273 includes a motor, and the motor is controlled wirelessly. The wireless control improves the operation convenience and layout flexibility.

[0041] In the embodiment, please refer to Figure 1 and Figure 2 The flexible connecting member 272 is a nylon wire or a steel wire rope.

[0042] In the embodiment, please refer to Figure 1 and Figure 2 The rotating assembly 34 includes a workbench 341, a rotating power member 342, a first gear 343, a second gear 344, and a rotating shaft 345. The workbench 341 is fixedly connected with the bottom plate 24. One end of the rotating shaft 345 is rotatably connected with the workbench 341. The first gear 343 is coaxially fixedly connected with the rotating shaft 345. The second gear 344 is rotatably arranged on the workbench 341. The first gear 343 and the second gear 344 are in meshing transmission. The other end of the rotating shaft 345 is fixedly connected with the fixed column 32.

[0043] The rotating power member 342 drives the second gear 344 to rotate, so as to drive the first gear 343 to rotate.

[0044] The meshing transmission mode of the first gear 343 and the second gear 344 provides accurate transmission ratio and stable power transmission. Through the accurate tooth shape cooperation of the gears, when the rotating power member 342 drives the second gear 344 to rotate, the first gear 343 can be accurately driven to rotate, so as to make the rotating shaft 345 and the fixed column 32 rotate, and further control the rotation angle of the wear monitor 31, so as to realize accurate angle adjustment, which is helpful to improve the accuracy and comprehensiveness of the wear monitoring of the hob 1.

[0045] In the embodiment, please refer to Figure 1 and Figure 2The rotating power component 342 comprises a motor, which is controlled wirelessly. The wireless control improves the operation convenience and layout flexibility.

[0046] In this embodiment, referring to Figure 1 and Figure 2 , the control assembly 33 comprises a power supply 331 fixed in the protective shell 23, a wear monitoring circuit board 332 fixed in the protective shell 23, a signal receiving route 333, an indoor acquisition unit 334, and an upper computer 335 arranged in the operating room of the shield tunneling machine. The wear monitoring device 31 is connected to the wear monitoring circuit board 332 in a wireless connection mode, which greatly simplifies the wiring and reduces the complexity of installation and maintenance. The signal receiving route 333 receives the data transmitted by the wear monitoring circuit board 332 in a wireless connection mode. The indoor acquisition unit 334 transmits the data received by the signal receiving route 333 to the upper computer 335. The upper computer 335 performs real-time monitoring analysis according to the received data and triggers an alarm when wear is detected. The power supply 331 and the wear monitoring circuit board 332 are connected by wires, which can ensure that the power supply 331 continuously and stably supplies power to the wear monitoring circuit board 332. The signal receiving route 333 and the indoor acquisition unit 334 can be arranged in the operating room of the shield tunneling machine. The signal receiving route 333, the indoor acquisition unit 334, and the upper computer 335 can be connected by wires or wirelessly. The wear monitoring circuit board 332, the signal receiving route 333, the indoor acquisition unit 334, and the upper computer 335 all use existing products, which will not be described here.

[0047] In this embodiment, referring to Figure 1 , the wear monitoring device 31 is an eddy current sensor. The eddy current sensor has high sensitivity to slight changes and can detect very slight wear of the cutter 1, providing high-precision data support for wear monitoring of the cutter 1 and providing reliable monitoring data. The eddy current sensor is a non-contact sensor. Due to its non-contact nature, it can work stably in harsh environments and its internal components are not easily worn, thereby prolonging its service life and reducing maintenance costs.

[0048] In this embodiment, referring to Figure 3 , the eddy current sensor is externally provided with an anti-wear shell, which reduces the interference of electromagnetic induction effects generated by metal on detection data and ensures the accuracy of measurement data.

[0049] In this embodiment, referring to Figure 2 Figure 2 Figure 1The flushing mechanism 4 also includes two nozzle 42 seats 41 symmetrically arranged along the hob 1 and fixedly connected to the edge of the transparent baffle 22 near one side of the hob 1, and two nozzles 42 fixedly connected to the two nozzle 42 seats 41 respectively, which are communicated with the external high-pressure pipeline through the nozzle 42 seats 41 and the water flushing channel arranged in the cutter head. The two nozzle 42 seats 41 are symmetrically arranged along the hob 1, which can ensure flushing from different angles to the hob 1 and its surrounding area, making the flushing coverage more uniform and avoiding the situation of local flushing or uneven flushing, which helps to improve the flushing effect and prevent the impact on the data monitored by the wear monitor 31. The nozzle 42 is connected with the external high-pressure pipeline through the water flushing channel arranged in the cutter head, which ensures the transmission path of the flushing water, avoids additional pipeline laying, reduces the complex pipeline system, makes the overall structure more compact and simple, and also reduces the damage risk of the pipeline caused by external factors, improves the reliability and stability of the flushing mechanism 4.

[0050] Working principle: when in use, the cylinder 271 is rotated by the horizontal moving force piece 273, the flexible connecting piece 272 converts the rotary motion of the cylinder 271 into the linear motion of the roller 25 in the horizontal part of the T-shaped groove 211, and cooperates with the elastic piece 274 to accurately control the position of the roller 25. When it is needed to move to one end of the cylinder 271, the rotation of the cylinder 271 makes the flexible connecting piece 272 wind on the cylinder 271, at this time the elastic piece 274 is in a stretched state, pulling the roller 25 to the predetermined position. When moving away from one end of the cylinder 271, the rotation of the cylinder 271 makes the flexible connecting piece 272 reduce the winding length on the cylinder 271, at this time the elastic piece 274 uses the elastic restoring force to pull the roller 25 to the predetermined position. When the second gear 344 is rotated by the rotating power piece 342, it can accurately drive the first gear 343 to rotate, thereby rotating the rotating shaft 345 and the fixed column 32, and further controlling the rotation angle of the wear monitor 31, realizing accurate angle adjustment, which helps to improve the accuracy and comprehensiveness of the wear monitoring of the hob 1. The eddy current sensor can accurately measure the wear state in real time and provide reliable monitoring data to the upper computer 335. The upper computer 335 performs real-time monitoring analysis according to the received data and triggers an alarm when wear is detected.

[0051] In summary, the utility model discloses a horizontal movement driving force piece 273 drive cylinder 271 rotation, flexible connecting piece 272 is converted into the linear motion of gyro wheel 25 in the T groove 211 horizontal portion with elastic part 274 cooperation can accurate control the position of gyro wheel 25, when needing to move to one end of cylinder 271, cylinder 271 rotation makes flexible connecting piece 272 wind on cylinder 271, at this time, elastic part 274 is in the tensile state, pulls gyro wheel 25 to reach the predetermined position, when moving away from one end of cylinder 271, cylinder 271 rotation makes flexible connecting piece 272 reduce the winding length on cylinder 271, at this time, elastic part 274 utilizes the elastic restoring force and pulls gyro wheel 25 to the predetermined position, gyro wheel 25 and T groove 211 horizontal portion rolling cooperation, support arm 26 and T groove 211 vertical portion sliding cooperation, make bottom plate 24 and the rotation assembly 34 of fixed connection on bottom plate 24 can along the cutter 1 cutter shaft axial smooth movement, wherein the rolling friction resistance of gyro wheel 25 is small, is favorable for realizing flexible movement, prolonging the service life, and during the transverse movement along the straight travel rail 21, the cooperation of T groove 211, gyro wheel 25 and support arm 26 can guarantee good guiding type and stability, thereby can accurate control the position of rotation assembly 34 and wear monitor 31, satisfy the monitoring demand of different parts of cutter 1 cutter shaft axial, flexible adjustment wear monitor 31's position, and then improve the accuracy and comprehensiveness of monitoring, when the second gear 344 is driven to rotate by the rotary power piece 342, can accurately drive the first gear 343 to rotate, thereby make rotating shaft 345 and fixed column 32 rotate, and then control the rotation angle of wear monitor 31, realize accurate angle adjustment, help to improve the accuracy and comprehensiveness of wear monitoring of cutter 1, the eddy current sensor can accurately measure the wear state in real time, provide reliable monitoring data transmission to control assembly 33, control assembly 33 carries out real-time monitoring analysis according to the received data, and triggers the alarm when detecting wear. Therefore, the utility model effectively overcomes the shortcomings in the prior art and has high industrial utilization value.

[0052] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A dynamic monitoring device for the wear of tunnel boring machine cutters, characterized in that, include: The hob and the lateral movement mechanism include a straight guide rail parallel to the hob axis, a transparent baffle fixed to the straight guide rail near the side of the hob, a protective shell fixed to the straight guide rail away from the side of the hob, a base plate, two rollers, two support arms, and a lateral movement force component for driving the rollers to move. The two ends of the straight guide rail are fixedly connected to the base on the cutter head by embedded parts. The straight guide rail has a T-slot on one side perpendicular to the central axis of the hob and along its own length. The two rollers are in rolling engagement with the horizontal part of the T-slot, and the two support arms are in sliding engagement with the vertical part of the T-slot. The two rollers are perpendicular to and rotatably connected to one end of the two support arms, and the other end of the two support arms is perpendicular to and fixedly connected to the base plate. The monitoring mechanism includes a wear monitor, a fixed column, a control component housed within the protective casing, and a rotating component fixed to the base plate for controlling the rotation of the wear monitor. One end of the fixed column is fixedly connected to the rotating component, and the wear monitor is fixedly attached to the fixed column with its monitoring end facing the hob. The wear monitor is wirelessly connected to the control component, and the lateral movement force component drives the roller to move, thereby causing the rotating component to move axially along the hob shaft.

2. The dynamic monitoring device for cutter wear of a tunnel boring machine according to claim 1, characterized in that: The lateral movement assembly includes a cylinder rotatably disposed within the horizontal portion of the T-slot and located at one end of the straight guide rail, a flexible connector, a lateral movement force component, and an elastic component. One end of the flexible connector is fixedly connected to the side of a support arm, and the other end is wrapped around the cylinder. The elastic element is used to reset the roller from one end of the cylinder to the other end of the straight guide rail; The lateral force component drives the cylinder to rotate, and the elastic component cooperates to control the position of the roller.

3. The dynamic monitoring device for cutter wear of tunnel boring machines according to claim 2, characterized in that: The lateral movement component includes a motor, which is wirelessly controlled.

4. The dynamic monitoring device for cutter wear of a tunnel boring machine according to claim 2, characterized in that: The flexible connector is a nylon wire or a steel wire rope.

5. The dynamic monitoring device for cutter wear of a tunnel boring machine according to claim 1, characterized in that: The rotating assembly includes a worktable, a rotating power component, a first gear, a second gear, and a rotating shaft. The worktable is fixedly connected to the base plate. One end of the rotating shaft is rotatably connected to the worktable. The first gear is coaxially fixedly engaged with the rotating shaft. The second gear is rotatably mounted on the worktable. The first gear and the second gear mesh and drive each other. The other end of the rotating shaft is fixedly connected to the fixed column. The rotating power component drives the second gear to rotate, which in turn drives the first gear to rotate.

6. The dynamic monitoring device for cutter wear of a tunnel boring machine according to claim 5, characterized in that: The rotating power component includes a motor, which is wirelessly controlled.

7. The dynamic monitoring device for cutter wear of a tunnel boring machine according to claim 1, characterized in that: The control components include a power supply fixed inside the protective shell, a wear monitoring circuit board fixed inside the protective shell, a signal receiving router, an indoor acquisition unit, and a host computer located in the tunnel boring machine's operating room. The wear monitor is connected to the wear monitoring circuit board wirelessly. The signal receiving router receives data transmitted by the wear monitoring circuit board wirelessly. The indoor acquisition unit transmits the data received by the signal receiving router to the host computer. The power supply and the wear monitoring circuit board are connected by a wire.

8. The dynamic monitoring device for cutter wear of a tunnel boring machine according to claim 1, characterized in that: The wear monitor is an eddy current sensor.

9. The dynamic monitoring device for cutter wear of a tunnel boring machine according to claim 8, characterized in that: The eddy current sensor is equipped with an anti-wear housing.

10. The dynamic monitoring device for cutter wear of a tunnel boring machine according to claim 1, characterized in that: It also includes a rinsing mechanism, which includes a nozzle seat and a nozzle. There are two nozzle seats, which are symmetrically arranged along the roller cutter and fixedly connected to the edge of a transparent baffle near the roller cutter. There are two nozzles, which are fixedly connected to the two nozzle seats respectively. The nozzles are connected to an external high-pressure pipeline through the rinsing channels provided in the nozzle seats and the cutter disc.

Images