Bridge beam bottom chord inspection vehicle
By designing a bridge beam undertone inspection vehicle with main vehicle truss, pass truss, sub-vehicle truss and extension truss, the problem that existing inspection vehicles cannot pass through the bridge pier smoothly is solved, and efficient and low-cost bridge inspection is achieved.
Patent Information
- Application Number
- CN202421647707.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing bridge beam bottom inspection vehicle cannot pass through the piers smoothly, resulting in inefficient inspection, high cost and cumbersome operation.
A bridge beam bottom chord inspection vehicle is designed, adopting a combined structure of main vehicle truss, pass truss, sub-vehicle truss and extension truss. The vehicle body is contracted, rotated and extended through the slewing mechanism, drive mechanism and angle adjustment mechanism, and adapted to the different structures of the bridge.
The inspection vehicle passes smoothly when passing through the bridge pier, improves detection efficiency, reduces cost and operation complexity, and is also adapted to bridge inspection with inclined surfaces on both sides of the bottom of the beam.
Smart Images
Figure CN222771317U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge detection, in particular to a bridge beam bottom lower chord inspection vehicle. Background Art
[0002] Traditional bottom beam inspection vehicles generally have tracks set up at the bottom of the bridge. The inspection vehicle is suspended on the tracks and moves along the tracks.
[0003] However, most of the current beam bottom inspection vehicles generally adopt a fixed body structure that spans the bottom of the bridge and can only be used between two bridge piers. For multi-span continuous bridge structures, it is necessary to set up an inspection vehicle between every two bridge piers to realize the inspection of the entire bridge. This inspection method is not only costly, but also requires operators to get on and off the vehicle after completing a section of inspection. The inspection efficiency is low and the operation is cumbersome. Or, several groups of operators are divided into several groups to operate all the inspection vehicles separately, which requires a lot of establishment costs.
[0004] Based on this, it is necessary to develop a bridge beam bottom chord inspection vehicle that can smoothly pass through the bridge piers to overcome the above technical problems. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a bridge beam bottom chord inspection vehicle, which effectively overcomes the defects of the prior art.
[0006] The technical solution of the utility model to solve the above technical problems is as follows:
[0007] A bridge beam bottom lower chord inspection vehicle comprises a main vehicle truss, a passage truss, two auxiliary vehicle trusses and two extension trusses, a fixed frame is provided in the middle of the main vehicle truss, the upper end of the fixed frame is connected with a slewing mechanism, the upper end of the slewing mechanism is installed with a mounting plate, the upper end of the mounting plate is equipped with a walking mechanism adapted to the bridge beam bottom rail, the main vehicle truss is a U-shaped frame, the two auxiliary vehicle trusses are respectively arranged in parallel in the main vehicle truss and pass through the two ends of the main vehicle truss, and the lower end of the main vehicle truss is provided with a driving mechanism for driving the auxiliary vehicle truss along the The driving mechanism for moving in the length direction thereof, the above-mentioned passage truss is installed in the middle area inside the above-mentioned main vehicle truss and is perpendicular to the two above-mentioned auxiliary vehicle trusses, and the sides of the ends of the two above-mentioned auxiliary vehicle trusses that are close to each other are respectively provided with passage openings adapted to the two ends of the above-mentioned passage trusses, the two above-mentioned extension trusses are respectively hinged at the ends of the two above-mentioned auxiliary vehicle trusses that are away from each other, and the two auxiliary vehicle trusses are respectively provided with angle adjustment mechanisms connected one-to-one with the two above-mentioned extension trusses, and the above-mentioned angle adjustment mechanisms are used to drive the above-mentioned extension trusses to flip and tilt upwards, or flip downwards to be horizontal.
[0008] On the basis of the above technical solution, the present invention can also be improved as follows.
[0009] Furthermore, two parallel grooves extending to both ends are respectively provided on both sides of the lower end of the main vehicle truss, and track grooves parallel to each other and extending to both ends are respectively provided on both sides of the groove. Tracks are respectively installed in the track grooves, and the track is connected and fixed to the lower end of the corresponding auxiliary vehicle truss. The driving mechanism is installed between the two track grooves and is transmission-connected to the lower end of the auxiliary vehicle truss.
[0010] Furthermore, the driving mechanism comprises a motor and a transmission gear, the transmission gear is connected to the shaft of the motor, a rack extending to both ends of the auxiliary vehicle truss is installed at the lower end, and the rack is meshed with the transmission gear.
[0011] Furthermore, the cross-sectional shape of the inner cavity of the track groove is dovetail-shaped, and the cross-sectional shape of the corresponding track is also dovetail-shaped.
[0012] Furthermore, the above-mentioned slewing mechanism is a slewing bearing.
[0013] Furthermore, the upper end of the end portion of the extension truss is hinged to the upper end of the end portion of the auxiliary vehicle truss.
[0014] Furthermore, the angle adjustment mechanism includes two groups of winches and two groups of steel cables. The two groups of winches are respectively installed on both sides of the upper end of the auxiliary vehicle truss. One ends of the two groups of steel cables are respectively connected to the drums of the two groups of winches in a one-to-one correspondence, and the other ends of the two groups of steel cables are respectively connected to both sides of the upper part of one end of the extension truss away from the auxiliary vehicle truss.
[0015] Furthermore, both sides of the upper part of one end of the extension truss away from the auxiliary vehicle truss are respectively provided with lifting rings, and the other ends of the steel cables are respectively connected and fixed to the corresponding lifting rings.
[0016] Furthermore, the above-mentioned walking mechanisms are provided with two groups, and correspondingly, the above-mentioned bridge beam bottom bridge bottom tracks are provided with two groups, and the two groups of the above-mentioned walking mechanisms are respectively and one-to-one connected with the two groups of the above-mentioned bridge beam bottom bridge bottom tracks.
[0017] Furthermore, the fixing frame is a square frame and is mounted on the middle part of the main vehicle truss.
[0018] The beneficial effects of the utility model are: the structure is reasonably designed, and it can be retracted and rotated when passing over the bridge piers, so that the whole vehicle can pass through the bridge piers smoothly. At the same time, the extended truss can adjust the angle for easy retraction, and it can also adapt to the inspection of bridges with inclined surfaces on both sides of the bottom of the beam. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the bridge beam bottom chord inspection vehicle of the utility model;
[0020] Figure 2 It is a structural schematic diagram of the cooperation between the main vehicle truss and one of the auxiliary vehicle trusses in the bridge beam bottom lower chord inspection vehicle of the utility model;
[0021] Figure 3 The utility model is a structural side view of the main vehicle truss and two auxiliary vehicle trusses in the bridge beam bottom lower chord inspection vehicle.
[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0023] 1. Main vehicle truss; 2. Passage truss; 3. Auxiliary vehicle truss; 4. Extension truss; 5. Fixed frame; 6. Rotating mechanism; 7. Mounting plate; 8. Traveling mechanism; 11. Track groove; 31. Track; 91. Motor; 92. Transmission gear; 93. Rack; 101. Winch; 102. Steel cable. DETAILED DESCRIPTION
[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0025] Example: Figure 1 , 2 As shown in Figure 3, the bridge beam bottom lower chord inspection vehicle of this embodiment includes a main vehicle truss 1, a passage truss 2, two auxiliary vehicle trusses 3 and two extension trusses 4. A fixing frame 5 is provided in the middle of the main vehicle truss 1. A slewing mechanism 6 is connected to the upper end of the fixing frame 5. A mounting plate 7 is installed on the upper end of the slewing mechanism 6. A walking mechanism 8 adapted to the bridge beam bottom rail is installed on the upper end of the mounting plate 7. The main vehicle truss 1 is a U-shaped frame. The two auxiliary vehicle trusses 3 are respectively arranged in parallel in the main vehicle truss 1 and pass through the two ends of the main vehicle truss 1. The lower end of the main vehicle truss 1 is provided with a driving mechanism. The auxiliary vehicle truss 3 is provided with a driving mechanism for moving along its length direction, the passage truss 2 is installed in the middle area inside the main vehicle truss 1, and is perpendicular to the two auxiliary vehicle trusses 3, and the sides of the ends of the two auxiliary vehicle trusses 3 that are close to each other are respectively provided with passage openings adapted to the two ends of the passage trusses 2, the two extension trusses 4 are respectively hinged at the ends of the two auxiliary vehicle trusses 3 that are away from each other, and the two auxiliary vehicle trusses 3 are respectively provided with angle adjustment mechanisms that are connected one by one with the two extension trusses 4, and the angle adjustment mechanisms are used to drive the extension trusses 4 to flip and tilt upward, or flip downward to a horizontal state.
[0026] When the lower chord inspection vehicle under the bridge beam of this embodiment is in operation, the two auxiliary vehicle trusses 3 extend to the two ends of the main vehicle truss 1. At the same time, the two extension trusses 4 are adjusted to be tilted and raised upward (matched with the angles of the inclined surfaces on both sides of the bottom of the bridge) under the action of the angle adjustment mechanism. Then, the walking mechanism 8 at the upper end of the main vehicle truss 1 can be used to walk along the bridge bottom track under the bridge beam. When passing through the bridge piers (double piers on both sides), the extension trusses 4 are first flipped downward to a horizontal position through the angle adjustment mechanism. Then, the auxiliary vehicle truss 3 is retracted (shortened) toward the middle of the main vehicle truss 1 by the driving mechanism. Next, the main vehicle truss 1 is driven by the slewing mechanism 6 to rotate 90 degrees as a whole, so that the length direction of the inspection vehicle is consistent with the length direction of the bridge. In this way, the overall width of the inspection vehicle is contracted, and it can pass smoothly between the two bridge piers. After passing through the bridge piers, the main vehicle truss 1 rotates 90 degrees back to its original position. At the same time, the auxiliary vehicle truss 3 is extended, and the extension truss 4 is flipped and tilted upward. The vehicle structure is reasonably designed and can be retracted and rotated when passing over the piers, so that the vehicle can pass through the piers smoothly. At the same time, the extended truss can adjust the angle for easy retraction, and can also adapt to the inspection of bridges with inclined surfaces on both sides of the bottom of the beam.
[0027] As a preferred embodiment, two parallel grooves extending to both ends are respectively provided on both sides of the lower end of the main vehicle truss 1, and track grooves 11 are respectively provided on both sides of the groove, which are parallel to each other and extend to both ends thereof. Tracks 31 are respectively installed in the track grooves 11, and the track 31 is connected and fixed to the lower end of the corresponding auxiliary vehicle truss 3. The driving mechanism is installed between the two track grooves 11 and is transmission-connected to the lower end of the auxiliary vehicle truss 3.
[0028] In the above implementation scheme, the cooperation between the track 31 and the track groove 11 is used to keep the auxiliary vehicle truss 3 and the main vehicle truss 1 level, so as to achieve the limit and prevent overturning, and maintain good translation performance. At the same time, the design of the groove makes the installation height of the auxiliary vehicle truss 3 as low as possible relative to the main vehicle truss 1.
[0029] In this embodiment, the driving mechanism includes a motor 91 and a transmission gear 92, the transmission gear 92 is connected to the shaft of the motor 91, and a rack 93 extending to both ends is installed at the lower end of the auxiliary vehicle truss 3, and the rack 93 is meshed with the transmission gear 92. The motor 91 drives the transmission gear 92 to rotate, which can drive the rack 93 to move relative to its length direction, thereby realizing the extension and contraction of the auxiliary vehicle truss 3 along the length direction, and the operation is relatively stable.
[0030] In this embodiment, the cross-section of the inner cavity of the track groove 11 is dovetail-shaped, and the cross-section of the corresponding track 31 is also dovetail-shaped, ensuring that the track groove 11 and the track 31 fit tightly and will not separate in cross-section.
[0031] In this embodiment, the slewing mechanism 6 adopts a slewing bearing of an adapted type.
[0032] As a preferred embodiment, the upper end of the end portion of the extension truss 4 is hinged to the upper end of the end portion of the auxiliary vehicle truss 3 .
[0033] In the above embodiment, the upper end of the extension truss 4 and the auxiliary vehicle truss 3 are hinged, so that when the extension truss 4 is turned down to a horizontal position, the ends of the two will conflict with each other, limiting the extension truss 4 from further turning down. Generally, the ends of the two are hinged by a rotating shaft.
[0034] As a preferred embodiment, the angle adjustment mechanism includes two groups of winches 101 and two groups of steel cables 102. The two groups of winches 101 are respectively installed on both sides of the upper end of the auxiliary vehicle truss 3. One ends of the two groups of steel cables 102 are respectively connected to the drums of the two groups of winches 101 in a one-to-one correspondence, and the other ends of the two groups of steel cables 102 are respectively connected to both sides of the upper part of one end of the extension truss 4 away from the auxiliary vehicle truss 3.
[0035] In the above embodiment, the two sets of winches 101 operate synchronously to reel in or unreel the steel cable 102. When reeling in, the extension truss 4 will be pulled upward and flipped. When unreeling, the extension truss 4 will flip downward to a horizontal position under the action of gravity.
[0036] In this embodiment, the upper part of the end of the extension truss 4 away from the auxiliary vehicle truss 3 is provided with lifting rings on both sides, and the other ends of the steel cables 102 are connected and fixed to the corresponding lifting rings, so as to facilitate the connection and fixation of the steel cables 102 and the extension truss 4.
[0037] In this embodiment, the above-mentioned walking mechanism 8 is provided with two groups, and the above-mentioned bridge beam bottom bridge bottom track is provided with two groups accordingly, and the two groups of the above-mentioned walking mechanism 8 are connected with the two groups of the above-mentioned bridge beam bottom bridge bottom track respectively and one by one. The cooperation of the two groups of walking mechanism 8 and the two groups of bridge beam bottom bridge bottom track makes the whole vehicle move more stably along the length direction of the bridge.
[0038] It should be noted that the traveling mechanism 8 can adopt the structure of a conventional bridge beam bottom inspection vehicle on the market (belonging to the prior art), and its specific structure will not be described in detail here.
[0039] In this embodiment, the fixing frame 5 is a square frame, and is mounted on the middle of the main vehicle truss 1. The fixing frame 5 can provide a good installation and protection effect on the main vehicle truss 1, and the two are assembled more firmly.
[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0045] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A bridge beam bottom chord inspection vehicle, characterized in that: The invention comprises a main vehicle truss (1), a passage truss (2), two auxiliary vehicle trusses (3) and two extension trusses (4); a fixing frame (5) is provided in the middle of the main vehicle truss (1); the upper end of the fixing frame (5) is connected to a slewing mechanism (6); a mounting plate (7) is installed on the upper end of the slewing mechanism (6); the upper end of the mounting plate (7) is installed with a walking mechanism (8) adapted to the bridge beam bottom rail; the main vehicle truss (1) is a U-shaped frame; the two auxiliary vehicle trusses (3) are respectively arranged in parallel in the main vehicle truss (1) and pass through the two ends of the main vehicle truss (1); the lower end of the main vehicle truss (1) is provided with a driving mechanism for driving the auxiliary vehicle A driving mechanism for moving the truss (3) along its length direction, the passage truss (2) is installed in the middle area inside the main vehicle truss (1) and is perpendicular to the two auxiliary vehicle trusses (3), and the sides of the two auxiliary vehicle trusses (3) that are close to each other are respectively provided with passage openings adapted to the two ends of the passage truss (2), the two extension trusses (4) are respectively hinged at the ends of the two auxiliary vehicle trusses (3) that are away from each other, and the two auxiliary vehicle trusses (3) are respectively provided with angle adjustment mechanisms that are connected to the two extension trusses (4) in a one-to-one correspondence, and the angle adjustment mechanisms are used to drive the extension trusses (4) to flip upwards and tilt, or flip downwards to a horizontal state.
2. A bridge beam bottom chord inspection vehicle according to claim 1, characterized in that: Two parallel grooves extending to both ends of the main vehicle truss (1) are respectively provided on both sides of the lower end thereof, and track grooves (11) extending to both ends thereof are respectively provided on both sides of the groove, and tracks (31) are respectively installed in the track grooves (11), and the tracks (31) are connected and fixed to the lower ends of the corresponding auxiliary vehicle trusses (3), and the driving mechanism is installed between the two track grooves (11) and is drivingly connected to the lower end of the auxiliary vehicle trusses (3).
3. A bridge beam bottom chord inspection vehicle according to claim 2, characterized in that: The driving mechanism comprises a motor (91) and a transmission gear (92), wherein the transmission gear (92) is connected to the shaft of the motor (91) by transmission, and a rack (93) extending to both ends of the auxiliary vehicle truss (3) is installed at the lower end thereof, and the rack (93) is meshed with the transmission gear (92).
4. A bridge beam bottom chord inspection vehicle according to claim 2, characterized in that: The cross-sectional shape of the inner cavity of the track groove (11) is dovetail-shaped, and the cross-sectional shape of the corresponding track (31) is also dovetail-shaped.
5. The bridge beam bottom chord inspection vehicle according to claim 1, characterized in that: The slewing mechanism (6) is a slewing bearing.
6. A bridge beam bottom chord inspection vehicle according to claim 1, characterized in that: The upper end of the end of the extension truss (4) is hinged to the upper end of the end of the auxiliary vehicle truss (3).
7. The bridge beam bottom chord inspection vehicle according to claim 1, characterized in that: The angle adjustment mechanism comprises two groups of winches (101) and two groups of steel cables (102); the two groups of winches (101) are respectively installed on both sides of the upper end of the auxiliary vehicle truss (3); one end of the two groups of steel cables (102) are respectively connected to the drums of the two groups of winches (101) in a one-to-one correspondence; and the other ends of the two groups of steel cables (102) are respectively connected to both sides of the upper part of one end of the extension truss (4) away from the auxiliary vehicle truss (3).
8. A bridge beam bottom chord inspection vehicle according to claim 7, characterized in that: Lifting rings are respectively provided on both sides of the upper part of one end of the extension truss (4) away from the auxiliary vehicle truss (3), and the other ends of the steel cables (102) are respectively connected and fixed to the corresponding lifting rings.
9. A bridge beam bottom chord inspection vehicle according to any one of claims 1 to 8, characterized in that: The walking mechanism (8) is provided with two groups, and the corresponding bridge beam bottom bridge bottom tracks are provided with two groups, and the two groups of the walking mechanism (8) are respectively connected to the two groups of the bridge beam bottom bridge bottom tracks in a one-to-one correspondence.
10. A bridge beam bottom chord inspection vehicle according to any one of claims 1 to 8, characterized in that: The fixing frame (5) is a square frame body and is sleeved on the middle part of the main vehicle truss (1).