Intelligent maintenance device for hollow slab beam inner cavity operation

Abstract

The embodiment of the invention provides an intelligent maintenance device for hollow slab girder inner cavity operation, and relates to the technical field of bridge maintenance. The supporting leg controller is started, the crawler-type wheel sets are tightly jacked in a bottom plate of an inner cavity of the hollow slab girder through the foldable supporting legs, the driving wheels are driven by the wheel set control system, the driven wheels are driven by the driving wheels to rotate, the crawler belts are driven by the driving wheels and the driven wheels to move, and the movement of the crawler belts enables the maintenance device to move in the inner cavity of the hollow slab girder. Efficient and convenient polishing treatment operation can be conveniently carried out on the inner cavity of the hollow slab beam; a brush head connecting rod of the polishing assembly is adjusted through a telescopic connecting piece to adapt to the space size of the inner cavity; a grinding assembly disc is started, eight telescopic grinding brushes are distributed on the grinding assembly disc, and comprehensive and careful grinding operation on the inner cavity of the hollow slab girder can be achieved through rotation of the grinding assembly disc; construction waste such as powder generated by grinding enters a waste collecting box through a pipeline in the middle of the grinding brush via the interior of a disc of the grinding assembly; a series of high-definition cameras are arranged in the circumferential direction of the detection and evaluation disc, effect pictures of the inner cavity after polishing are collected and input into an evaluation system to automatically evaluate the roughness after polishing, and therefore the requirement for intra-cavity grouting maintenance is met. The device can greatly improve the quality and efficiency of polishing operation, so that reliable cohesiveness of an inner cavity of the hollow slab beam and a grouting maintenance material is guaranteed, and the shear bearing capacity of the hollow slab beam is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of bridge maintenance, and in particular to an intelligent maintenance device for working inside the cavity of a hollow slab beam. Background Art

[0002] As one of the main structural forms of bridges, the quality of the inner cavity of a hollow slab beam directly determines the stability and safety of the overall structure. Research shows that inner cavity defects (such as cracks and spalling) can reduce the shear bearing capacity by 30% - 50%, seriously threatening the structural safety. During long-term service, due to factors such as material aging, cyclic load stress, and environmental erosion (such as chloride ion penetration) in the inner cavity of the hollow slab beam, problems such as insufficient surface roughness and degraded bonding strength are common. Taking a certain cross-sea bridge as an example, local shear failure occurred due to the inner cavity not being repaired in time, resulting in a direct economic loss of over ten million yuan, highlighting the urgency of repair and reinforcement.

[0003] However, the maintenance of the inner cavity of a hollow slab beam faces multiple technical challenges: First, the inner cavity space is narrow and personnel cannot enter for operation; second, traditional manual maintenance relies on hand-held tools, with low efficiency and the dust environment threatening the health of workers; third, existing automated equipment lacks adaptability, cannot adjust by telescoping or rotating to match different beam heights, and the roughness fluctuates greatly after grinding, resulting in unqualified grouting bonding strength. In addition, there is a lack of real-time quality inspection means during the operation process, with a high rework rate, further driving up the maintenance cost.

[0004] Therefore, there is an urgent need for an intelligent maintenance device that integrates adaptive adjustment, efficient grinding, and real-time detection to break through the limitations of traditional technologies and ensure the long-life and safe service of hollow slab beams.

[0005] Therefore, it is necessary to design an intelligent maintenance device for working inside the cavity of a hollow slab beam to solve the above problems. Summary of the Invention

[0006] In view of the above problems, the embodiments of the present application provide an intelligent maintenance device for working inside the cavity of a hollow slab beam, which improves the quality and efficiency of hollow slab beam maintenance.

[0007] The embodiment of the present application provides an intelligent maintenance device for the inner cavity operation of a hollow slab beam, including a crawler wheel set walking system. A number of groups of the crawler wheel set walking systems are provided, and a foldable support leg controller is arranged on each crawler wheel set walking system. A waste recycling box is arranged between several groups of the crawler wheel set walking systems. A circular plate is installed on the front side of the waste recycling box. A disc-shaped detection and evaluation device is arranged between the circular plate and the waste recycling box. A number of telescopic devices are evenly distributed and installed on the circular plate, and a grinding component is installed on each telescopic device. The high-definition cameras of the detection and evaluation device are evenly arranged along the circumference of the grinding disc and rotate synchronously with the grinding component to capture the surface state of the grinding area in real time and transmit the images to the evaluation system to automatically analyze whether the roughness meets the grouting requirements.

[0008] In some embodiments, the crawler wheel set walking system includes a wheel set control system. A driving wheel is installed on one side of the wheel set control system, and a driven wheel is installed on the other side of the wheel set control system. The same crawler is arranged on the driving wheel and the driven wheel.

[0009] In some embodiments, the grinding device includes a grinding protection cover, which is fixedly connected to the telescopic device, and a brush is arranged inside the grinding protection cover.

[0010] In some embodiments, the grinding protection cover is circularly arranged, and the brush is arranged at the center position of the grinding protection cover.

[0011] In some embodiments, the crawler wheel set walking systems are arranged symmetrically left and right, and six groups of the crawler wheel set walking systems are provided.

[0012] In some embodiments, the telescopic devices are arranged in a ring array, and eight telescopic devices are provided, and the number of telescopic devices is the same as that of the grinding devices.

[0013] In some embodiments, the circular plate is hollow and communicates with the waste recycling box, and a negative pressure device is arranged inside the circular plate cavity.

[0014] Through the above solution, the collapsible support leg controller is activated. The crawler wheel set walking system is tightened in the hollow slab beam through the collapsible support leg controller. The driving wheel is driven through the wheel set control system, and the driving wheel drives the driven wheel to rotate. The crawler is driven by the driving wheel and the driven wheel. The movement of the crawler enables the maintenance device to move in the inner cavity of the hollow slab beam, facilitating the efficient and convenient grinding operation of the hollow slab beam. The grinding device is activated, and the brush in the grinding device rotates. The brush can perform a comprehensive and detailed grinding operation on the inner cavity of the hollow slab beam. At the same time, the inner cavity of the hollow slab beam after grinding is detected and evaluated through the detection and evaluation device, greatly improving the quality and efficiency of the grinding operation, thereby ensuring a reliable bond between the inner cavity of the hollow slab beam and the grouting material and improving the shear bearing capacity of the hollow slab beam.

[0015] The above description is only an overview of the technical solution of the embodiment of the present application. In order to be able to understand the technical means of the embodiment of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and understandable, the specific implementation manners of the present application are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic three-dimensional structure diagram of an intelligent maintenance device for the inner cavity operation of a hollow slab beam of the present application;

[0018] Figure 2 It is a schematic front structure diagram of an intelligent maintenance device for the inner cavity operation of a hollow slab beam of the present application;

[0019] Figure 3 It is a schematic top view structure diagram of an intelligent maintenance device for the inner cavity operation of a hollow slab beam of the present application;

[0020] Figure 4 It is a schematic left side structure diagram of an intelligent maintenance device for the inner cavity operation of a hollow slab beam of the present application;

[0021] Figure 5 It is a schematic right side structure diagram of an intelligent maintenance device for the inner cavity operation of a hollow slab beam of the present application;

[0022] Figure 6 It is a schematic structure diagram of the crawler wheel set walking system of an intelligent maintenance device for the inner cavity operation of a hollow slab beam of the present application;

[0023] Figure 7 This is a schematic structural diagram of the grinding device of an intelligent maintenance device for inner cavity operation of a hollow slab beam in this application.

[0024] Figure 8 This is a schematic diagram showing the layout of high-definition cameras of the disc-shaped detection device of an intelligent maintenance device for inner cavity operation of a hollow slab beam in this application.

[0025] Description of reference numerals:

[0026] 1. Crawler wheel set walking system; 2. Waste recycling box; 3. Disc-shaped detection and evaluation device; 4. Telescopic device; 5. Grinding device; 6. Wheel set control system; 7. Foldable support leg controller; 8. Driving wheel; 9. Crawler; 10. Driven wheel; 11. Grinding device protective cover; 12. Brush; 13. High-definition camera. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without making creative efforts shall fall within the scope of protection of this application.

[0028] The terms "including" and "having" and any variations thereof in the description, claims and drawings of this application are intended to cover but not exclude other elements. The word "a" or "an" does not exclude the presence of a plurality. Unless otherwise stated, "a plurality" means two or more (including two), and similarly, "multiple groups" means two or more groups (including two groups).

[0029] The orientation terms appearing in the following description are all the directions shown in the figures, and do not limit the specific structure of this application. For example, in the description of this application, terms such as "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of this application.

[0030] In addition, expressions indicating directions for explaining the operations and structures of the components in this embodiment, such as the height direction, are not absolute but relative. Although these indications are appropriate when the components are in the positions shown in the figures, when these positions change, these directions should be interpreted differently to correspond to the changes.

[0031] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, the "connection" or "coupling" of mechanical structures can refer to a physical connection, such as a fixed connection, a detachable connection, or an integral connection. The "connection" or "coupling" of circuit structures can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be indirectly connected through at least one intermediate element, as long as the circuit is connected. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] To facilitate the understanding of the technical solutions of the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application.

[0033] As Figure 1-7 shown, the embodiments of this application provide an intelligent maintenance device for working inside the cavity of a hollow slab beam, including a crawler wheel group walking system 1. The crawler wheel group walking system 1 is symmetrically arranged left and right. There are six groups of crawler wheel group walking systems 1. Each crawler wheel group walking system 1 is provided with a foldable support leg controller 7. The crawler wheel group walking system 1 includes a wheel group control system 6. A driving wheel 8 is installed on one side of the wheel group control system 6, and a driven wheel 10 is installed on the other side of the wheel group control system 6. The same crawler 9 is arranged on the driving wheel 8 and the driven wheel 10;

[0034] In the technical solution of this embodiment, when the foldable support leg controller 7 is started, the crawler wheel group walking system 1 is jacked tightly in the hollow slab beam through the foldable support leg controller 7. The driving wheel 8 is driven through the wheel group control system 6. The driving wheel 8 drives the driven wheel 10 to rotate. The crawler 9 is driven by the driving wheel 8 and the driven wheel 10. The movement of the crawler 9 enables the maintenance device to move inside the cavity of the hollow slab beam, facilitating efficient and convenient grinding operation on the hollow slab beam;

[0035] A waste recycling bin 2 is arranged between several groups of crawler wheel group walking systems 1. A circular plate is installed on the front side of the waste recycling bin 2. The circular plate is hollow and communicates with the waste recycling bin 2. A negative pressure device is arranged inside the circular plate cavity;

[0036] In the technical solution of this embodiment, the waste recycling bin 2 is used to store the debris generated during the grinding process, improving the grinding effect;

[0037] A disc-shaped detection and evaluation device 3 is provided between the circular plate and the waste recycling bin 2. A series of high-definition cameras 13 are arranged on the circumference of the disc-shaped detection and evaluation device 3. A number of telescopic devices 4 are evenly distributed and installed on the circular plate. The telescopic devices 4 are arranged in an annular array. There are eight telescopic devices 4, and the number of telescopic devices 4 is the same as that of the grinding devices 5. Grinding devices 5 are installed on each of the telescopic devices 4. The grinding device 5 includes a grinding protective cover 11. The grinding protective cover 11 is fixedly connected to the telescopic device 4. A brush 12 is arranged inside the grinding protective cover 11; the brush head length of the grinding assembly 5 is adjusted through the telescopic connector of the telescopic device 4 to adapt to the inner cavity of the hollow slab beam with different beam heights; the driving motor is started to drive the grinding disc to rotate, and the circumferential position of the brush 12 is adjusted to ensure comprehensive grinding of the inner cavity wall; the high-definition cameras 13 of the detection and evaluation device 3 are evenly arranged along the circumferential direction of the grinding disc and rotate synchronously with the grinding assembly, and the surface state of the grinding area is photographed in real time and the image is transmitted to the evaluation system to automatically analyze whether the roughness meets the grouting requirements.

[0038] In the technical solution of this embodiment, when the grinding device 5 is started, the brush 12 inside the grinding device 5 rotates, and the brush 12 can perform a comprehensive and detailed grinding operation on the inner cavity of the hollow slab beam. At the same time, the inner cavity of the hollow slab beam after grinding is detected and evaluated by the detection and evaluation device 3, greatly improving the quality and efficiency of the grinding operation, thereby ensuring a reliable bond between the inner cavity of the hollow slab beam and the grouting material and improving the shear bearing capacity of the hollow slab beam;

[0039] Furthermore, the grinding protective cover 11 is circularly arranged, and the brush 12 is located at the center of the grinding protective cover 11, which is convenient for protecting the brush 12 and absorbing impurities.

[0040] Working principle: When in use, first place this intelligent maintenance device in the inner cavity of the hollow slab beam, remotely control this device through a remote control device, start the collapsible support leg controller 7, and through the collapsible support leg controller 7, press the crawler wheel group traveling system 1 tightly in the hollow slab beam. Start the telescopic device 4, and the telescopic device 4 pushes the grinding device 5 to ensure that the grinding device 5 is pressed tightly against the inner cavity of the hollow slab beam. Start the wheel group control system 6 and the grinding device 5. The brush 12 in the grinding device 5 rotates, enabling the brush to perform grinding operations on the side wall of the inner cavity of the hollow slab beam. And through the wheel group control system 6, drive the driving wheel 8, the driving wheel 8 drives the driven wheel 10 to rotate, and drive the crawler 9 to move through the driving wheel 8 and the driven wheel 10. The movement of the crawler 9 can enable this maintenance device to move in the inner cavity of the hollow slab beam. At this time, the brush 12 can perform comprehensive and detailed grinding operations on the inner cavity of the hollow slab beam. At the same time, the disc-shaped detection and evaluation device 3 detects and evaluates the inner cavity of the hollow slab beam after grinding, greatly improving the quality and efficiency of the grinding operation, thereby ensuring a reliable bond between the inner cavity of the hollow slab beam and the grouting material and improving the shear bearing capacity of the hollow slab beam.

[0041] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of this application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0042] As mentioned above, the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this application.

Claims

1. An intelligent maintenance device for the inner cavity operation of a hollow slab beam, characterized in that, It includes a crawler-wheel group walking system (1), and several groups of the crawler-wheel group walking systems (1) are provided. A foldable support leg controller (7) is arranged on each crawler-wheel group walking system (1). A waste recycling bin (2) is arranged between several groups of the crawler-wheel group walking systems (1). A circular plate is installed on the front side of the waste recycling bin (2). A disc-shaped detection and evaluation device (3) is arranged between the circular plate and the waste recycling bin (2). A series of high-definition cameras (13) are arranged on the circumference of the disc-shaped detection and evaluation device (3), and the high-definition cameras (13) move synchronously with the grinding brush (12). Several telescopic devices (4) are evenly distributed and installed on the circular plate. The telescopic devices (4) adjust the length of the brush head connecting rod of the grinding device (5) through telescopic connectors to adapt to the inner cavities of hollow slab beams with different heights. The disc of the grinding device (5) can be rotated to adjust the grinding position, and the grinding devices (5) are installed on all the telescopic devices (4) to achieve full coverage of the inner cavity.

2. The intelligent maintenance device for the inner cavity operation of a hollow slab beam according to claim 1, wherein, The crawler-wheel group walking system (1) includes a wheel group control system (6). A driving wheel (8) is installed on one side of the wheel group control system (6), and a driven wheel (10) is installed on the other side of the wheel group control system (6). The same crawler (9) is arranged on the driving wheel (8) and the driven wheel (10). The wheel group control system (6) is internally provided with a pressure sensor, and the tension of the crawler (9) is dynamically adjusted according to the contact pressure of the inner cavity bottom plate of the hollow slab beam to ensure the stable walking of the device.

3. The intelligent maintenance device for the inner cavity operation of the hollow slab beam according to claim 1, wherein, The grinding device (5) further includes a driving motor, the driving motor is connected to a grinding protection cover (11), the grinding protection cover (11) is fixedly connected to the telescopic device (4), and a brush (12) is arranged in the grinding protection cover (11) to drive the disc-shaped grinding assembly to rotate axially to adjust the working position of the grinding brush (12).

4. The intelligent maintenance device for the inner cavity operation of the hollow slab beam according to claim 3, characterized in that, The grinding protection cover (11) is circularly arranged, and the brush (12) is arranged at the center position of the grinding protection cover (11).

5. The intelligent maintenance device for the inner cavity operation of a hollow slab beam according to claim 1, characterized in that, The crawler-wheel group walking systems (1) are arranged symmetrically left and right, and six groups of the crawler-wheel group walking systems (1) are provided.

6. The intelligent maintenance device for the inner cavity operation of the hollow slab beam according to claim 1, characterized in that, The telescopic devices (4) are arranged in an annular array, eight telescopic devices (4) are provided, and the number of the telescopic devices (4) is the same as that of the grinding devices (5).

7. An intelligent maintenance device for inner cavity operation of hollow slab beams according to claim 1, characterized in that, The circular plate is hollow and communicates with the waste recycling bin (2), and a negative pressure device is arranged in the inner cavity of the circular plate.

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