Cleaning monitoring device
By installing a cleaning monitoring device with cameras and cleaning nozzles on the tunnel boring machine (TBM), the mud cake on the cutterhead can be monitored in real time and automatically removed, solving the problems of high cost and low efficiency in mud cake removal during TBM construction and improving construction safety and efficiency.
Patent Information
- Application Number
- CN202421053455.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-15
AI Technical Summary
In existing technologies, the formation of mud cake on the cutterhead of a tunnel boring machine leads to increased wear and reduced tunneling speed, and manual removal of mud cake is characterized by high cost, low efficiency, and high risk.
Design a cleaning monitoring device, including a camera and a cleaning nozzle, to monitor the status of the excavation chamber and cutterhead in real time, and drive the camera and nozzle to move back and forth through a drive mechanism to achieve automatic removal of mud cake.
It enables real-time monitoring and automatic removal of mud cake from the tunnel boring machine cutterhead, improving construction efficiency and reducing the risks and costs of manual intervention.
Smart Images
Figure CN222306635U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of excavation equipment, in particular to a cleaning monitoring device. Background Art
[0002] At present, during the construction of shield machines, due to the characteristics of high temperature, high pressure and high humidity in the excavation chamber, the cutterhead tools often face problems such as mud cake and slag adhesion. When the cutterhead is caked with mud, it will cause the tool wear to increase and the cutterhead slag to be difficult to discharge, which will lead to a series of problems such as slowing down the excavation speed, increasing the main drive load, and aging of the main bearing seal, which seriously affects the shield excavation speed and construction safety. At present, the removal of mud cake on the cutterhead is generally done by manually entering the excavation chamber with pressure, first using tools such as shovels or pneumatic picks to remove the mud cake on the cutterhead, and then using high-pressure water to wash the cutterhead. This method has many defects such as high labor cost, long time consumption, high risk, and low efficiency. In addition, the excavation chamber is in a sealed state, which is a blind spot for the operators. The status of these parts mainly depends on the experience and judgment of the operators, which is subjective and uncertain. Utility Model Content
[0003] In order to solve the above-mentioned problem of inconvenience in removing mud cake from the cutter disc, the utility model provides a cleaning monitoring device, which contains a camera and a cleaning nozzle, can monitor the status of the excavation chamber and the cutter disc tool in real time, and perform mud cake processing, and the operation is simple and convenient.
[0004] The technical solution adopted by the embodiment of the utility model to solve the technical problem is:
[0005] A cleaning monitoring device includes a camera packaging assembly and a driving mechanism arranged at the front and back. The camera packaging assembly contains a packaging shell, in which a camera and a light source are arranged. A transparent window is arranged at the front end of the packaging shell. The light source can illuminate the front of the transparent window, and the camera can shoot the front of the transparent window. A cleaning nozzle is connected to the outside of the camera packaging assembly, and the spray direction of the cleaning nozzle is toward the front. The driving mechanism can drive the camera packaging assembly and the cleaning nozzle to move forward and backward.
[0006] The encapsulation shell is a cylindrical structure, the axis of the encapsulation shell extends along the front-back direction, the transparent window is located in the middle of the front end of the encapsulation shell, and the transparent window is a spherical segment structure.
[0007] The cleaning monitoring device also includes a first self-cleaning nozzle, which is located at the front end of the packaging shell and can clean the transparent window.
[0008] The cleaning nozzle is located at the front end edge of the packaging shell, and a plurality of cleaning nozzles are arranged at intervals along the circumference of the packaging shell.
[0009] The cleaning monitoring device further comprises an anti-collision rod, which extends in the front-rear direction, and a plurality of anti-collision rods are arranged at intervals along the circumference of the packaging shell.
[0010] The length of the anti-collision rod is greater than the height of the transparent window, and the rear end of the anti-collision rod is connected and fixed to the front end of the packaging shell.
[0011] The driving mechanism is a bidirectional oil cylinder, the axis of which extends in the front-rear direction. The driving mechanism comprises a piston rod and a cylinder tube which are arranged inside and outside, and the camera packaging assembly is connected to the front end of the piston rod.
[0012] The piston rod is a tubular structure, and circuit cables and liquid pipelines are arranged inside the piston rod.
[0013] The rear end of the piston rod is provided with a plurality of cable pipeline connectors.
[0014] The cleaning monitoring device also includes a second self-cleaning nozzle, which is located at the front end of the cylinder barrel and can clean the camera packaging assembly and the piston rod.
[0015] The mounting seat is a cylindrical structure, and the axis of the mounting seat extends in the front-to-back direction. The front end of the mounting seat is sealed and fixed to the partition, and the rear end of the mounting seat is sealed and fixed to the driving mechanism. A accommodating cavity is provided in the mounting seat, and the mounting seat is connected to a switch valve, which can open or close the accommodating cavity. The driving mechanism can drive the camera packaging assembly and the cleaning nozzle to move forward to the outside of the accommodating cavity, and the driving mechanism can also drive the camera packaging assembly and the cleaning nozzle to move backward to the inside of the accommodating cavity.
[0016] The beneficial effects of the embodiment of the utility model are: real-time monitoring of the working status of the excavation chamber and the cutter head tool, and mud cake processing, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0018] Figure 1 It is a front view schematic diagram of the cleaning monitoring device described in the embodiment of the utility model.
[0019] Figure 2 yes Figure 1 An enlarged schematic diagram of the camera packaging component area.
[0020] Figure 3 It is a three-dimensional schematic diagram of the cleaning monitoring device described in the embodiment of the utility model.
[0021] Figure 4 yes Figure 3An enlarged schematic view of the camera encapsulation component part.
[0022] Figure 5 It is an internal schematic view of the camera encapsulation component.
[0023] Figure 6 It is a schematic view of the piston rod.
[0024] Figure 7 It is a schematic view when the piston rod is in the retracted state.
[0025] Figure 8 It is a schematic view when the piston rod is in the extended state.
[0026] The description of the reference numerals is as follows:
[0027] 1. Cutter head; 2. Partition; 3. Mounting seat; 4. Cleaning monitoring device;
[0028] 31. End face seal; 32. Accommodating cavity;
[0029] 41. Driving mechanism; 42. Camera encapsulation component; 43. First self-cleaning nozzle; 44. Cleaning nozzle; 45. Second self-cleaning nozzle; 46. Anti-collision bar; 47. Cable pipeline joint;
[0030] 411. Piston rod; 412. Cylinder barrel;
[0031] 421. Encapsulation housing; 422. Camera; 423. Light source; 424. Transparent window. Detailed implementation manners
[0032] It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The following will describe the present invention in detail with reference to the drawings and in combination with the embodiments.
[0033] For the convenience of understanding and description, an absolute positional relationship is adopted in the following description of the present invention. Without special instructions, the orientation word "up" represents Figure 1 the upper side direction in Figure 1 the orientation word "down" represents Figure 1 the lower side direction in Figure 1 the orientation word "left" represents the direction perpendicular to Figure 1 the paper surface of Figure 1 and pointing to the outside of the paper surface, the orientation word "right" represents the direction perpendicular to the paper surface of
[0034] and pointing to the inside of the paper surface, the orientation word "front" represents Figures 1 to 5 the left side direction in the orientation word "rear" represents
[0035] the right side direction in The present invention is described from the observation perspective of the reader or user, but the above orientation words cannot be understood or interpreted as limiting the protection scope of the present invention. Regarding the dimensions and angles of the components therein, those skilled in the art can specifically determine them according to actual needs.
[0034] like Figures 1 to 5 As shown, a cleaning monitoring device described in an embodiment of the utility model includes a camera packaging component 42 and a driving mechanism 41 connected front and back, the camera packaging component 42 contains a packaging shell 421, a camera 422 and a light source 423 are arranged in the packaging shell 421, a transparent window 424 is arranged at the front end of the packaging shell 421, the light source 423 can illuminate the front of the transparent window 424, the camera 422 can shoot the front of the transparent window 424, the camera packaging component 42 is externally connected to a cleaning nozzle 44, the spray direction of the cleaning nozzle 44 is toward the front, and the driving mechanism 41 can drive the camera packaging component 42 and the cleaning nozzle 44 to move forward and backward.
[0035] The cleaning monitoring device includes a camera 422 and a cleaning nozzle 44. The camera 422 can adopt an existing spherical camera or a camera head. The camera 422 can monitor the excavation chamber, the cutter head tool and the tunnel face in real time. The cleaning nozzle 44 can adopt an existing high-pressure nozzle. The cleaning nozzle 44 can clean the mud cake on the cutter head as needed, and the operation is simple and convenient.
[0036] The packaging shell 421 is a cylindrical structure, which contains an annular front end plate, a side cylinder wall and an annular rear end plate connected in sequence from front to right. The axis of the packaging shell 421 extends approximately along the front-to-back direction. The transparent window 424 is located in the middle of the front end of the packaging shell 421. The transparent window 424 is a spherical structure. The material of the transparent window 424 is an existing transparent material. The transparent window 424 is sealed and fixed to the annular front end plate.
[0037] In order to remove the debris splashed onto the transparent window 424 during the mud cake flushing process, the cleaning monitoring device also includes a first self-cleaning nozzle 43, which is located at the front end edge of the packaging shell 421, and multiple first self-cleaning nozzles 43 are arranged at intervals along the circumference of the packaging shell 421. The first self-cleaning nozzle 43 can spray water or cleaning agent onto the transparent window 424, and the first self-cleaning nozzle 43 can clean the transparent window 424.
[0038] like Figure 2 and Figure 4 As shown, the cleaning nozzle 44 is mainly used for flushing and cleaning the mud cake on the cutter disc. The cleaning nozzle 44 can spray water or detergent onto the cutter disc. The cleaning nozzle 44 is located at the front end edge of the packaging shell 421. Multiple cleaning nozzles 44 are arranged at intervals along the circumference of the packaging shell 421. The angle between the spray direction of the cleaning nozzle 44 and the axis of the packaging shell 421 can be 0°-45°. The multiple cleaning nozzles 44 adopt multi-angle spraying. The water flow sprayed by the multiple cleaning nozzles 44 is conical, which can expand the cleaning and flushing range of the cleaning nozzle 44.
[0039] In order to protect the transparent window 424 and the camera 422, the cleaning monitoring device further includes an anti-collision rod 46, which extends in the front-to-back direction, and a plurality of anti-collision rods 46 are evenly spaced along the circumference of the encapsulation shell 421. The anti-collision rod 46 can be a metal rod, and the length of the anti-collision rod 46 is greater than the height of the transparent window 424. The rear end of the anti-collision rod 46 is connected and fixed to the front end of the encapsulation shell 421. For example, the rear end of the anti-collision rod 46 is connected and fixed to the annular front end plate at the front end of the encapsulation shell 421. The length of the anti-collision rod 46 should not be too long to avoid affecting the field of view of the camera 422. The length of the anti-collision rod 46 can be obtained based on a limited number of experiments.
[0040] like Figure 3 As shown, the drive mechanism 41 can adopt an existing two-way oil cylinder, the axis of the drive mechanism 41 extends roughly in the front-back direction, the axis of the package shell 421 coincides with the axis of the drive mechanism 41, the drive mechanism 41 includes a piston rod 411 and a cylinder 412 arranged inside and outside, and the rear end of the camera package assembly 42 is connected to the front end of the piston rod 411. Alternatively, the drive mechanism 41 can also adopt an existing two-way air cylinder or a two-way electric cylinder, etc., and any existing device that can move an object forward and backward can be used as a drive mechanism.
[0041] In this embodiment, the drive mechanism 41 adopts an existing bidirectional oil cylinder, and the cylinder barrel 412 is provided with a piston rod forward hydraulic interface and a piston rod backward hydraulic interface. The piston rod 411 is a hollow tubular structure, and the bidirectional oil cylinder can also be called a hollow bidirectional oil cylinder. Circuit cables and liquid pipelines are arranged in the piston rod 411, and a plurality of cable and pipeline connectors 47 are arranged at the rear end of the piston rod 411, such as Figure 6 shown.
[0042] The front end of the circuit cable is connected to the camera 422 and the light source 423, and the circuit cable can provide power and signal transmission for the camera 422, and can also provide power for the light source 423. The front end of the liquid pipeline is connected to the first self-cleaning nozzle 43 and the cleaning nozzle 44, and the liquid pipeline can provide water or detergent for the first self-cleaning nozzle 43 and the cleaning nozzle 44. The front end of the circuit cable and the front end of the liquid pipeline are both located in the packaging shell 421, and the rear end of the circuit cable and the rear end of the liquid pipeline are connected to the cable pipeline connector 47 one by one.
[0043] like Figure 3 As shown, in order to remove the debris splashed onto the camera packaging assembly 42 and the piston rod 411 during the mud cake flushing process, the cleaning monitoring device also includes a second self-cleaning nozzle 45. The second self-cleaning nozzle 45 is located at the front end of the cylinder 412. The second self-cleaning nozzle 45 can spray water or cleaning agent toward the camera packaging assembly 42 and the piston rod 411. The second self-cleaning nozzle 45 can clean the camera packaging assembly 42 and the piston rod 411.
[0044] In order to reduce water accumulation on the driving mechanism 41 and the camera packaging assembly 42, the axis of the driving mechanism 41 can be inclined, the front end of the piston rod 411 of the driving mechanism 41 can be lower than the rear end, and the angle between the axis of the driving mechanism 41 and the horizontal plane can be 1° to 5°.
[0045] The following describes the installation method of the above-mentioned cleaning monitoring device (also called cleaning and monitoring device) in the shield machine. Figure 1 to Figure 2 As shown, in the shield machine, the cutterhead 1 and the partition 2 are arranged at intervals in front and back, the axis of the cutterhead 1 extends in the front and back direction, and the partition 2 is connected to a cleaning monitoring device 4 through a mounting seat 3. The cleaning monitoring device 4 is the above-mentioned cleaning monitoring device. The installation position and installation quantity of the cleaning monitoring device 4 on the partition 2 can be obtained according to needs and a limited number of experiments.
[0046] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the mounting seat 3 is a cylindrical structure, and a accommodating cavity 32 is provided in the mounting seat 3. The axis of the mounting seat 3 extends roughly in the front-to-back direction, and the axis of the mounting seat 3 coincides with the axis of the driving mechanism 41. The front end of the mounting seat 3 is sealed and fixed to the partition 2 (such as welding), and the rear end of the mounting seat 3 is sealed and fixed to the driving mechanism 41. For example, the rear end of the mounting seat 3 is sealed and fixed to the front end of the cylinder 412 of the driving mechanism 41 through an end face seal 31 and bolts.
[0047] The working process of the cleaning monitoring device 4 is described below.
[0048] like Figure 7 As shown, when the piston rod 411 of the driving mechanism 41 is in a retracted state, the camera packaging assembly 42 retreats to the accommodating cavity 32 of the mounting seat 3. The mounting seat 3 can provide a storage and shelter for the camera 422 to prevent slag from damaging the camera packaging assembly 42. The driving mechanism 41 is sealed and fixed to the mounting seat 3 to prevent the pressure in the excavation chamber between the cutter head 1 and the partition 2 from leaking out. The camera 422 in the camera packaging assembly 42 can monitor the status of the excavation chamber and the cutter head in real time. When mud cake processing and fixed-point monitoring are required, such as Figure 8 As shown, the piston rod 411 of the driving mechanism 41 is in an extended state, the camera packaging assembly 42 moves forward to the required position, the mud cake is flushed through the cleaning nozzle 44, and the cutter head tool fixed point is monitored through the camera 422.
[0049] The above is only a specific embodiment of the utility model, and it cannot be used to limit the scope of the utility model. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the protection scope of the utility model should still fall within the scope of the utility model. In addition, the technical features of the utility model can be freely combined with each other, with technical features and technical solutions, with technical solutions and with embodiments.
Claims
1. A cleaning monitoring device, characterized in that: The cleaning monitoring device comprises a camera packaging component (42) and a driving mechanism (41) arranged at the front and rear, the camera packaging component (42) comprising a packaging shell (421), a camera (422) and a light source (423) being arranged inside the packaging shell (421), a transparent window (424) being arranged at the front end of the packaging shell (421), the light source (423) being capable of illuminating the front of the transparent window (424), the camera (422) being capable of photographing the front of the transparent window (424), a cleaning nozzle (44) being externally connected to the camera packaging component (42), the spraying direction of the cleaning nozzle (44) being toward the front, and the driving mechanism (41) being capable of driving the camera packaging component (42) and the cleaning nozzle (44) to move forward and backward.
2. The cleaning monitoring device according to claim 1, characterized in that: The encapsulation shell (421) is a cylindrical structure, the axis of the encapsulation shell (421) extends in the front-to-back direction, the transparent window (424) is located in the middle of the front end of the encapsulation shell (421), and the transparent window (424) is a spherical segment structure.
3. The cleaning monitoring device according to claim 2, characterized in that: The cleaning monitoring device further comprises a first self-cleaning nozzle (43), the first self-cleaning nozzle (43) being located at the front end of the packaging shell (421), and the first self-cleaning nozzle (43) being capable of cleaning the transparent window (424).
4. The cleaning monitoring device according to claim 2, characterized in that: The cleaning nozzle (44) is located at the front end edge of the packaging shell (421), and a plurality of cleaning nozzles (44) are arranged at intervals along the circumference of the packaging shell (421).
5. The cleaning monitoring device according to claim 2, characterized in that: The cleaning monitoring device further comprises an anti-collision rod (46), the anti-collision rod (46) extending in the front-rear direction, and a plurality of anti-collision rods (46) are arranged at intervals along the circumference of the packaging shell (421).
6. The cleaning monitoring device according to claim 5, characterized in that: The length of the anti-collision rod (46) is greater than the height of the transparent window (424), and the rear end of the anti-collision rod (46) is connected and fixed to the front end of the packaging shell (421).
7. The cleaning monitoring device according to claim 1, characterized in that: The driving mechanism (41) is a bidirectional oil cylinder. The axis of the driving mechanism (41) extends in the front-rear direction. The driving mechanism (41) comprises a piston rod (411) and a cylinder barrel (412) which are arranged inside and outside. The camera packaging assembly (42) is connected to the front end of the piston rod (411).
8. The cleaning monitoring device according to claim 6, characterized in that: The piston rod (411) is a tubular structure, and circuit cables and liquid pipelines are arranged inside the piston rod (411).
9. The cleaning monitoring device according to claim 8, characterized in that: A plurality of cable and pipeline connectors (47) are provided at the rear end of the piston rod (411).
10. The cleaning monitoring device according to claim 6, characterized in that: The cleaning monitoring device further comprises a second self-cleaning nozzle (45), which is located at the front end of the cylinder (412), and the second self-cleaning nozzle (45) is capable of cleaning the camera packaging assembly (42) and the piston rod (411).