Visual cutterhead wear detection device

Abstract

The utility model relates to the technical field of shield tunneling machines, and discloses a visual cutterhead wear detection device, which comprises a protection plate, a camera, a slip ring, a display screen, a flushing pipe, a rotary joint and a water inlet pipe, the protection plate is arranged on the inner side of a large circular ring of a cutterhead, the inner side wall of the large circular ring is provided with a mounting groove, and the camera is arranged in the mounting groove. The shield body is provided with a mounting groove, the cutter head is arranged in the mounting groove, the protective plate covers one end, close to the cutter head, of the mounting groove, the camera is mounted in the mounting groove, a cable of the camera penetrates through a rotating shaft of the cutter head to extend into the shield body and is connected with a cable of the display screen through a sliding ring, and the display screen is mounted on the shield body. One end of the flushing pipe is installed on the inner side of the large circular ring and faces the protection plate, and the other end of the flushing pipe penetrates through the rotating shaft of the cutter head to stretch into the shield body and is connected with the water inlet pipe through the rotating connector. The device can monitor the abrasion state of the cutterhead in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machines, in particular to a visual cutter head wear detection device. Background Art

[0002] During the tunneling process, the cutter of the shield machine will be subjected to friction and impact from the formation rock or soil. During use, the cutter and the cutter panel will continue to wear, and the degree of wear will increase when encountering hard rocks. When the cutter of the conventional cutter is worn to a certain extent, it is necessary to open the warehouse and change the cutter. If the cutter is worn too much, it is easy to cause the cutting force to decrease and the cutter panel to wear more. In severe cases, the cutter will get stuck. In addition, in actual use, the center of the cutter is subjected to large forces and often eccentric wear occurs, resulting in serious wear of the cutter and cutter panel in the center area. At this time, monitoring the cutter disc is particularly important. Existing cutter disc wear detection includes hydraulic detection, vibration detection, resistance detection, etc., which are installed on the back of the cutter and the cutter panel. When the cutter disc is worn to a certain extent, it will trigger the detection device to present different parameter changes to judge the amount of wear. However, conventional detection methods for detecting individual cutters and local panels cannot reflect the wear status of the entire cutter disc in real time and comprehensively, and the cost is high. The detection methods used for different cutters are different, and the occasions of use are limited. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a visual cutter disc wear detection device which can monitor the wear state of the cutter disc in real time.

[0004] In order to solve the above technical problems, the utility model provides a visual cutter disc wear detection device, including a protective plate, a camera, a slip ring, a display screen, a flushing pipe, a rotating joint and a water inlet pipe, wherein the protective plate is installed on the inner side of a large circular ring of the cutter disc, and the inner side wall of the large circular ring is provided with a mounting groove, the protective plate cover is arranged on one end of the mounting groove close to the cutter disc, the camera is installed in the mounting groove, the cable of the camera passes through the rotating shaft of the cutter disc and extends into the shield body, and is connected to the cable of the display screen through the slip ring, the display screen is installed on the shield body, one end of the flushing pipe is installed on the inner side of the large circular ring and faces the protective plate, the other end of the flushing pipe passes through the rotating shaft of the cutter disc and extends into the shield body, and is connected to the water inlet pipe through the rotating joint.

[0005] As a preferred embodiment of the present utility model, the rotary joint includes a fixed part and a rotating part, the fixed part is installed in the shield body, a water inlet chamber is provided inside the fixed part, the fixed part is provided with a water inlet and a connecting port respectively connected with the water inlet chamber, the rotating part is inserted in the connecting port and is rotatably connected with the fixed part through a bearing, a water outlet chamber is provided inside the rotating part, one end of the rotating part extends into the water inlet chamber and is provided with a connecting port respectively connected with the water inlet chamber and the water outlet chamber, the other end of the rotating part is provided with a water outlet connected with the water outlet chamber, the water inlet pipe is connected with the water inlet, and the flushing pipe is connected with the water outlet.

[0006] As a preferred solution of the utility model, a flushing nozzle is provided at one end of the flushing pipe close to the protective plate, and the flushing nozzle is installed on the inner side of the large ring and faces the protective plate.

[0007] As a preferred solution of the utility model, a protective cover is provided on the inner side of the large circular ring, and the protective cover covers the flushing nozzle.

[0008] As a preferred solution of the utility model, the interior of the cutter disc is provided with a first wiring channel for the cable of the camera to pass through and a second wiring channel for the flushing pipe to pass through, the first wiring channel is connected to the mounting groove, and the second wiring channel is connected to the interior of the protective cover.

[0009] As a preferred solution of the utility model, an electric control valve is provided on the water inlet pipe.

[0010] As a preferred solution of the utility model, a first bolt and a second bolt are provided on the protective plate, the first bolt passes through the protective plate and is connected to the inner wall of the large ring, and the second bolt passes through the protective plate and is connected to the camera.

[0011] The utility model embodiment provides a visual cutter disc wear detection device. Compared with the prior art, its beneficial effects are: a camera shoots the inside of the cutter disc, and the obtained image is transmitted to a display screen to make it visual, so that an observer can know the real-time wear condition of the cutter disc by monitoring the display screen; the provision of a protective plate protects the camera to prevent the camera from contacting with debris and rolling stones; the flushing pipe faces the protective plate, and when the protective plate is contaminated, the flushing pipe can flush the protective plate when water comes out, thereby ensuring a clear field of view for the camera; the cable of the camera is connected to the cable of the display screen through a slip ring, and the flushing pipe is connected to the water inlet pipe through a rotating joint, thereby ensuring that the device can be used normally when the cutter disc is rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 yes Figure 1 A local enlarged view of point A in FIG.

[0014] Figure 3 yes Figure 1 A local enlarged view of point B in FIG.

[0015] Figure 4 It is a structural schematic diagram of a rotary joint of the utility model;

[0016] Figure 5 It is a connection diagram of various components of the utility model;

[0017] In the figure, 1, cutter disc; 11, large ring; 111, mounting groove; 2, shield body; 3, protective plate; 31, first bolt; 32, second bolt; 4, camera; 5, slip ring; 6, display screen; 7, flushing pipe; 71, flushing nozzle; 72, protective cover; 8, rotary joint; 81, fixing part; 811, water inlet chamber; 812, water inlet; 813, connecting port; 82, rotating part; 821, water outlet chamber; 822, connecting port; 823, water outlet; 9, water inlet pipe; 91, electric control valve. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] like Figure 1-5As shown, a visualized cutter disc 1 wear detection device according to a preferred embodiment of the utility model comprises a protective plate 3, a camera 4, a slip ring 5, a display screen 6, a flushing pipe 7, a rotary joint 8 and a water inlet pipe 9. The protective plate 3 is mounted on the inner side of a large circular ring 11 of the cutter disc 1. The inner side wall of the large circular ring 11 is provided with a mounting groove 111. The protective plate 3 cover is arranged on one end of the mounting groove 111 close to the cutter disc 1. The camera 4 is mounted in the mounting groove 111. The camera 4 faces the inside of the cutter disc 1 and can shoot the inside of the cutter disc 1. It can be understood that the protective plate 3 is a transparent and high-strength material, such as an acrylic plate, which is not easily damaged and does not affect the operation of the camera 4. The cable of the camera 4 passes through the rotating shaft of the cutter disc 1 and extends into the shield body 2, and is connected to the cable of the display screen 6 through the slip ring 5. The display screen 6 is mounted on the shield body 2. One end of the flushing pipe 7 is mounted on the inner side of the large circular ring 11 and faces the protective plate 3. The other end of the flushing pipe 7 passes through the rotating shaft of the cutter disc 1 and extends into the shield body 2, and is connected to the water inlet pipe 9 through the rotary joint 8.

[0021] The working principle of this embodiment is as follows: the camera 4 shoots the inside of the cutter disc 1, and the obtained image is transmitted to the display screen 6 to make it visible. The observer can know the real-time wear condition of the cutter disc 1 by monitoring the display screen 6. Generally, a camera 4 has a 140-degree wide-angle lens. The shooting area of ​​a single camera 4 covers the area from the edge of the cutter disc 1 to the center of the cutter disc 1. Therefore, multiple cameras 4 are arranged at 90-degree intervals along the periphery of the cutter disc 1, so that the area in the center of the entire cutter disc 1 can be monitored. When the cutter disc 1 has abnormal wear or abnormal conditions, it can be discovered and handled in time, which greatly reduces hidden dangers. In addition, according to the wear condition of the cutter disc 1, the time for tool change can be selected in advance. Be prepared for tool change; the protection plate 3 is provided to protect the camera 4 and prevent the camera 4 from contacting with debris and rolling stones; the flushing pipe 7 faces the protection plate 3, and when the protection plate 3 is contaminated, the flushing pipe 7 can flush the protection plate 3 when water comes out, thereby ensuring a clear field of view for the camera 4; the cable of the camera 4 is connected to the cable of the display screen 6 through the slip ring 5, so that the camera 4 can be electrically connected to the display screen 6 while following the rotation of the cutter disc 1, thereby preventing the cable from being disconnected, and the flushing pipe 7 is connected to the water inlet pipe 9 through the rotating joint 8, so that the flushing pipe 7 can be connected to the water inlet pipe 9 while following the rotation of the cutter disc 1, thereby preventing the flushing pipe 7 from being disconnected, thereby ensuring the normal use of the device.

[0022] As a preferred embodiment of the present invention, the rotary joint 8 includes a fixed portion 81 and a rotating portion 82. The fixed portion 81 is installed in the shield body 2. A water inlet chamber 811 is provided inside the fixed portion 81. The fixed portion 81 is provided with a water inlet port 812 and a connecting port 813 respectively connected to the water inlet chamber 811. The rotating portion 82 is inserted into the connecting port 813 and is rotatably connected to the fixed portion 81 through a bearing. A water outlet chamber 821 is provided inside the rotating portion 82. One end of the rotating portion 82 extends into the water inlet chamber 811 and is provided with a connecting port 822 respectively connected to the water inlet chamber 811 and the water outlet chamber 821. It can be understood that there is a gap between the end of the rotating portion 82 extending into the water inlet chamber 811 and the inner side wall of the water inlet chamber 811 to ensure fluidity and prevent mutual friction. The other end of the rotating portion 82 is provided with a There is a water outlet 823 connected to the water outlet chamber 821, the water inlet pipe 9 is connected to the water inlet 812, and the flushing pipe 7 is connected to the water outlet 823. The water in the water inlet pipe 9 enters the water inlet chamber 811 through the water inlet 812, and is then transported to the flushing pipe 7 through the connecting port 822, the water outlet chamber 821 and the water outlet 823 in sequence, and is finally discharged from the flushing pipe 7 to flush the protective plate 3. Since the rotating part 82 is rotatably connected to the fixed part 81, the flushing pipe 7 can normally rotate with the cutter disc 1. It should be noted that, in theory, the rotation axis of the rotating part 82 is coaxially arranged with the rotation axis of the cutter disc 1, but in practice, the position of the rotating part 82 may deviate, so a hose is used at the connection between the flushing pipe 7 and the water outlet 823 to adapt to the torsion caused by the position deviation.

[0023] Exemplarily, a flushing nozzle 71 is provided at one end of the flushing pipe 7 close to the protective plate 3 . The flushing nozzle 71 is installed on the inner side of the large ring 11 and faces the protective plate 3 , so as to improve the flushing effect on the protective plate 3 .

[0024] Exemplarily, a protective cover 72 is provided on the inner side of the large ring 11, and the protective cover 72 covers the flushing nozzle 71. Generally, the protective cover 72 also covers one end of the flushing pipe 7 connected to the flushing nozzle 71. The protective cover 72 serves to protect the flushing nozzle 71 and the flushing pipe 7 from being hit by debris and rolling stones.

[0025] Exemplarily, the interior of the cutter disc 1 is provided with a first wiring channel for the cable of the camera 4 to pass through and a second wiring channel for the flushing pipe 7 to pass through. The first wiring channel is connected to the mounting groove 111, and the second wiring channel is connected to the interior of the protective cover 72. The first wiring channel and the second wiring channel are respectively connected to the interior of the shield body 2, that is, the cable of the camera 4 extends into the shield body 2 through the first wiring channel, and the flushing pipe 7 extends into the shield body 2 through the second wiring channel, thereby realizing internal wiring.

[0026] Exemplarily, an electric control valve 91 is provided on the water inlet pipe 9 to control the flushing pipe 7 to flush the protective plate 3 .

[0027] Exemplarily, the protective plate 3 is provided with a first bolt 31 and a second bolt 32. The first bolt 31 passes through the protective plate 3 and is connected to the inner wall of the large ring 11, thereby achieving the installation and fixation of the protective plate 3. The second bolt 32 passes through the protective plate 3 and is connected to the camera 4, thereby achieving the installation and fixation of the camera 4. The assembly and disassembly are simple. In this embodiment, the inner wall of the large ring 11 is provided with a positioning groove that cooperates with the protective plate 3.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A visual cutter head wear detection device, characterized in that: It includes a protective plate, a camera, a slip ring, a display screen, a flushing pipe, a rotating joint and a water inlet pipe. The protective plate is installed on the inner side of a large circular ring of a cutter disc. The inner side wall of the large circular ring is provided with a mounting groove. The protective plate cover is arranged on one end of the mounting groove close to the cutter disc. The camera is installed in the mounting groove. The cable of the camera passes through the rotating shaft of the cutter disc and extends into the shield body, and is connected to the cable of the display screen through a slip ring. The display screen is installed on the shield body. One end of the flushing pipe is installed on the inner side of the large circular ring and faces the protective plate. The other end of the flushing pipe passes through the rotating shaft of the cutter disc and extends into the shield body, and is connected to the water inlet pipe through the rotating joint.

2. The visual cutter head wear detection device according to claim 1 is characterized in that: The rotary joint includes a fixed part and a rotating part, the fixed part is installed in the shield body, a water inlet chamber is provided inside the fixed part, the fixed part is provided with a water inlet and a connecting port respectively connected with the water inlet chamber, the rotating part is inserted in the connecting port and is rotatably connected with the fixed part through a bearing, a water outlet chamber is provided inside the rotating part, one end of the rotating part extends into the water inlet chamber and is provided with a connecting port respectively connected with the water inlet chamber and the water outlet chamber, the other end of the rotating part is provided with a water outlet connected with the water outlet chamber, the water inlet pipe is connected with the water inlet, and the flushing pipe is connected with the water outlet.

3. The visual cutter head wear detection device according to claim 1, characterized in that: A flushing nozzle is provided at one end of the flushing pipe close to the protective plate. The flushing nozzle is installed on the inner side of the large ring and faces the protective plate.

4. The visual cutter head wear detection device according to claim 3 is characterized in that: A protective cover is provided on the inner side of the large circular ring, and the protective cover covers the flushing nozzle.

5. The visual cutter head wear detection device according to claim 4 is characterized in that: The interior of the cutter disc is provided with a first wiring channel for the cable of the camera to pass through and a second wiring channel for the flushing pipe to pass through, the first wiring channel is connected to the mounting groove, and the second wiring channel is connected to the interior of the protective cover.

6. The visual cutter head wear detection device according to claim 1, characterized in that: An electric control valve is arranged on the water inlet pipe.

7. The visual cutter head wear detection device according to claim 1, characterized in that: The protective plate is provided with a first bolt and a second bolt, the first bolt passes through the protective plate and is connected to the inner wall of the large ring, and the second bolt passes through the protective plate and is connected to the camera.

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