Integral type high box culvert piece hoisting system

Abstract

The utility model discloses an integral type high box culvert piece hoisting system which solves the problem that an integral type high box culvert piece is difficult to hoist in the prior art. The box culvert unloading device comprises a box culvert crane arranged on the upper portion of a trailer, a box culvert unloading device arranged on the lower portion of the trailer and a flat plate support arranged in the box culvert hoisting direction. The box culvert crane comprises a rail assembly, a movable frame is arranged on the rail assembly, and a lifting and turning-over mechanism and a grabbing mechanism which can act on a box culvert are arranged on the movable frame. The box culvert unloading device comprises main frames arranged on the two sides of the interior of the trailer, and lifting mechanisms and lifting mechanisms driving the lifting mechanisms to move up and down are arranged on the main frames. Through interaction of the trailer equipment bridge, the box culvert crane, the box culvert unloading device and the flat plate support, hoisting, storing and splicing of the integral high box culvert piece can be achieved more efficiently; and the construction method is simple and feasible, the device is simple and easy to manufacture, the box culvert assembly work of box culvert pieces with different heights can be met, and high practicability is achieved in tunnel construction.

Description

Technical Field

[0001] The utility model relates to the technical field of large-diameter tunnel construction, in particular to an integral high box culvert lifting system. Background Art

[0002] At present, the construction of prefabricated box culvert parts is generally to prefabricate the middle box culvert in the shield machine section, and the side box culvert is cast later or laid by crane. This method can decompose the box culvert for easy transportation and related supporting facilities, but it is time-consuming and labor-intensive, and the investment cost is relatively high.

[0003] In recent years, with the development of large-diameter tunnel construction, integral box culvert components have been increasingly used in tunnel construction, which can realize the one-time assembly of the integral box culvert in the shield machine section without the need for subsequent side box culvert pouring. For example, an integral box culvert lifting method and lifting device with application number CN202111394692.9 is disclosed, but it is only for prefabricated parts with a box culvert that is not so high. For tunnel construction with higher integral box culvert components, it is limited by the height of the transport vehicle and the clearance limit in the box culvert crane. Horizontal lifting at the trailer cannot be achieved, and it is also difficult for the rear trailer to allow the transport vehicle to pass. There is currently no specific solution to this problem.

[0004] Therefore, a new lifting device and construction method are urgently needed for the construction of high-integral box culvert tunnels. Utility Model Content

[0005] In view of the deficiencies in the above-mentioned background technology, the utility model proposes an integral high box culvert lifting system, which solves the problem of difficulty in lifting integral high box culverts in the prior art.

[0006] The technical solution of the utility model is achieved as follows: an integrated high box culvert lifting system, including a box culvert crane arranged on the upper part of a trailer, a box culvert unloading device arranged on the lower part of the trailer and a flat plate support arranged in the box culvert lifting direction; the box culvert crane includes a track assembly, a moving frame is provided on the track assembly, and a lifting and turning mechanism and a grabbing mechanism that can act on the box culvert are provided on the moving frame; the box culvert unloading device includes a main frame arranged on both sides of the trailer, and a lifting mechanism and a lifting mechanism that drives the lifting mechanism to move up and down are provided on the main frame.

[0007] Further preferably, the flat plate support is located below the equipment bridge, and the equipment bridge is overlapped between the front and rear trailers to achieve horizontal lifting at the trailers.

[0008] Further preferably, the track assembly includes a rear track arranged on the trailer and a front track arranged on the equipment bridge, and the front track and the rear track are arranged correspondingly in front and back.

[0009] Further preferably, the mobile frame includes a large frame and a small frame, the large frame is arranged on the track assembly and can move forward and backward along the track assembly under the action of the driving device, and the small frame is arranged on the large frame and can move left and right along the large frame under the action of the driving device.

[0010] Further preferably, the lifting and turning mechanism is an electric hoist group, and the electric hoist group is arranged on the trolley frame and can move together with the trolley frame.

[0011] Further preferably, the grabbing mechanism includes a C-shaped hook and a rotating member arranged on the trolley frame, and the rotating member is provided with a lifting drive member for driving the C-shaped hook to move up and down.

[0012] Further preferably, the electric hoist group is four linkage hoists, and the four linkage hoists are all provided with distance sensors; the lifting drive component is an electric hoist or a lifting cylinder.

[0013] Further preferably, the lifting mechanism includes a driving cylinder arranged on the main frame; the lifting mechanism includes a drag claw that can be extended and retracted left and right, the drag claw is connected to the driving cylinder and can move up and down under the action of the driving cylinder.

[0014] Further preferably, the drag claw is provided with a distance sensor for monitoring the extension distance of the drag claw.

[0015] Further preferably, the upper surface of the flat plate support is a curved surface that matches the box culvert.

[0016] The beneficial effects of the utility model are as follows: the utility model proposes a system for transporting, lifting and assembling high box culvert parts, which solves the construction problems of transporting, lifting and assembling high integral box culverts, greatly saves manpower, material resources and construction costs, and greatly improves construction efficiency. The utility model can more efficiently realize the lifting, storage and assembly of integral high box culvert parts through the interaction of trailer equipment bridge, box culvert crane, box culvert unloading device and flat plate support; and the construction method is simple and feasible, the device is simple and easy to make, and can meet the box culvert assembly work of box culvert parts of different heights, and has high practicality in tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2It is a schematic diagram of the structure of the box culvert crane of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the box culvert unloading device of the utility model.

[0021] Figure 4 This is a schematic diagram of the status of the high box culvert reaching the culvert unloading device.

[0022] Figure 5 This is a schematic diagram of the box culvert crane arriving at the box culvert unloading device.

[0023] Figure 6 This is a schematic diagram of the box culvert crane reaching the top of the flat support.

[0024] Figure 7 Schematic diagram of a box culvert crane adjusting a high box culvert from a horizontal position to a vertical position and placing it on a flat support.

[0025] Figure 8 This is a schematic diagram of a box culvert crane grabbing a high box culvert from the left side, rotating it 90°, and then assembling it with the assembled box culvert at the rear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1As shown, embodiment 1, an integral high box culvert lifting system, includes a box culvert crane 3 arranged on the upper part of the trailer 2, a box culvert unloading device 4 arranged on the lower part of the trailer 2, and a flat support 5 arranged in the box culvert lifting direction. The trailer 2 is a gate-shaped frame structure that travels on the box culvert track, providing a force-bearing platform for the box culvert crane and the box culvert unloading device; the box culvert crane 3 is used for lifting, turning over and assembling high box culvert parts 7. The high box culvert 7 is a prefabricated box culvert part, which is provided with four lifting points for hoisting. The unloading device unloads the box culvert part from the transport vehicle 6. The equipment bridge 1 is overlapped between the front and rear trailers. As described above, through the interaction of the trailer, equipment bridge, box culvert crane, box culvert unloading device and flat plate support, the lying box culvert is lifted and transported to the unloading device for storage by the lifting mechanism of the box culvert crane, and the unloading device unloads the box culvert parts from the transport vehicle. When the box culvert is to be assembled, the box culvert crane transports them from the unloading device to the bottom of the equipment bridge, and the turning mechanism of the box culvert crane is used to adjust the box culvert parts from a lying position to a vertical position. The box culvert parts in the vertical position are placed on the flat plate support on the pipe segment, and finally the side grab mechanism and rotating mechanism of the box culvert crane are used to complete the assembly of the box culvert parts.

[0028] like Figure 2 , 3 As shown, specifically, the box culvert crane 3 includes a track assembly 301, on which a mobile frame is provided, which can move along the track assembly, and on which a lifting and turning mechanism and a grabbing mechanism that can act on the box culvert are provided, respectively used for grabbing, turning over, and lifting the box culvert parts. In this embodiment, as a preferred embodiment, the box culvert unloading device 4 includes a main frame 401 arranged on both sides of the trailer 2, and the main frame 401 is provided with a lifting mechanism and a lifting mechanism that drives the lifting mechanism to move up and down. The lifting mechanism moves up and down along the main frame under the action of the lifting mechanism, and is used to unload the high box culvert parts from the transport vehicle.

[0029] Embodiment 2, a system for lifting an integral high box culvert component. In this embodiment, the flat plate support 5 is located below the equipment bridge 1, and the equipment bridge 1 is overlapped between the front and rear trailers. The equipment bridge 1 is the operating carrier of the box culvert crane, and its two ends are overlapped on the trailer to provide space for the storage, rotation and assembly of the box culvert. For tunnel construction with relatively high integral box culvert components, horizontal and safe lifting can be achieved at the trailer, and the rear trailer ensures the passage of the transport vehicle. In order to further improve the stable support for the box culvert components, the upper surface of the flat plate support 5 is designed to be an arc-shaped surface that cooperates with the box culvert. The flat plate support is a supporting platform after the box culvert is lifted from the unloading device to the bottom of the connecting bridge and turned over, which can support the box culvert to maintain a vertical posture.

[0030] As a preferred solution in this embodiment, the track assembly 301 includes a rear track arranged on the trailer 2 and a front track arranged on the equipment bridge 1. The front track and the rear track are arranged in front and back correspondence. The front track and the rear track are used for the walking support of the box culvert crane to ensure the movement of the mobile frame between the trailer and the equipment bridge to meet the front and back walking requirements.

[0031] In this embodiment, as a preferred solution, Figure 2 As shown, the mobile frame includes a large frame 302 and a small frame 303. The large frame 302 is arranged on the track assembly 301 and can move forward and backward along the track assembly 301 under the action of the driving device. The large frame is the main structure of the box culvert crane and can move forward and backward along the track. The small frame 303 is arranged on the large frame 302 and can move left and right along the large frame 302 under the action of the driving device. The small frame is the carrier of the box culvert hoist and can move left and right along the large frame; the large frame and the small frame cooperate to realize the front and back, left and right movement of the lifting and turning mechanism and the grabbing mechanism. The driving device can be driven by a cylinder or a motor.

[0032] The lifting and turning mechanism described in this embodiment is an electric hoist group 304, which is arranged on a trolley frame 303 and can move synchronously with the trolley frame. The lifting and turning mechanism is an electric hoist that adjusts the high integral box culvert from a lying posture to a vertical posture. As a preferred solution, the electric hoist group 304 is four linkage hoists, and distance sensors are provided on the four linkage hoists. The four hoists meet the requirements of individual lifting control and linkage control. They are arranged on a trolley frame and can move forward, backward, left and right with the box culvert crane. The four hoists are equipped with distance sensing sensors, which can control the release speed of the hoist chain as the height of the two ends of the box culvert changes, thereby ensuring overall stability.

[0033] The grabbing mechanism in this embodiment includes a C-shaped hook 306 and a rotating member 305 arranged on a trolley frame 303. The rotating member 305 is provided with a lifting drive member that drives the C-shaped hook 306 to move up and down; the rotating member is a motion mechanism that can rotate the entire box culvert by ±90°. The rotating member can be a rotary bearing member, which drives the lifting drive member and the C-shaped hook 306 to rotate in a horizontal plane under the action of the driving device. The lifting drive member is an electric hoist or a lifting cylinder; it realizes the up and down movement of the C-shaped hook 306. The C-shaped hook is a C-shaped structural member that can meet the needs of grabbing, rotating and assembling the box culvert.

[0034] In this embodiment, as a preferred solution, Figure 3As shown, the lifting mechanism includes a driving cylinder 402 arranged on a main frame 401; the lifting mechanism may also adopt other lifting mechanisms such as a gear rack or a worm gear assembly as needed. The lifting mechanism includes a towing claw 403 that can be extended and retracted left and right. The towing claw 403 is connected to the driving cylinder 402 and can move up and down under the action of the driving cylinder 402. A distance sensor for monitoring the extension distance of the towing claw 403 is provided on the towing claw 403. The culvert unloading mechanism is used to unload the box culvert parts and unload the box culvert parts from the transport vehicle. The supporting claw meets the telescopic function and is equipped with a distance sensor. When the transport vehicle stops at the box culvert unloading device, the left and right supporting claws are extended, and the extension distance of the left and right supporting claws is determined according to the distance sensor. The transport vehicle 6 is a powered trackless rubber-wheeled transport vehicle.

[0035] The specific construction process is as follows: 1. Figure 4 As shown, the box culvert transport vehicle transports the flat prefabricated box culvert from outside the tunnel to the box culvert unloading device. In this state, the left and right supporting claws of the box culvert unloading device extend, and the left and right distance sensors detect the distance that the transport vehicle deviates from the center. The left and right supporting claws determine the extension distance, and the lifting mechanism is activated at this time to unload the box culvert parts from the transport vehicle, and the transport vehicle that releases the box culvert parts drives away from the box culvert unloading device.

[0036] 2. If Figure 5 As shown, the box culvert crane drives to the box culvert unloading device. When the box culvert crane reaches the box culvert unloading device, the four electric hoists installed on the box culvert crane fall down and hang on the lifting points set on the flat high box culvert parts. The electric hoists rise to release the flat high box culvert from the box culvert unloading device, and the box culvert crane lifts the box culvert to the box culvert flat plate support.

[0037] 3. If Figure 6 As shown in the figure, the box culvert crane reaches above the flat support. In this state, the two hoists on the right side descend, causing the box culvert to complete a 90° rotation, so that it is adjusted from a lying position to a vertical position. The distance sensors on the four linked hoists can adjust the chain release speed in real time according to the rotation angle and the descending distance of the box culvert to ensure stability during the flipping process. In addition, the pre-buried lifting points of the box culvert and the hooks of the linked hoists are all multi-degree-of-freedom hinge points, which avoids the unstable center of gravity of the box culvert due to the oblique pulling of the wire rope during the flipping process.

[0038] 4. If Figure 7 As shown, the box culvert crane adjusts the high box culvert from a lying position to a vertical position and places it on a flat support.

[0039] 5. If Figure 8 As shown, the C-shaped structure of the box culvert crane descends, grabs the high box culvert from the left, rotates 90° and assembles it with the assembled box culvert at the rear.

[0040] The box culvert crane in the utility model is not only suitable for the construction of high box culverts, but also for the normal height box culverts in the later transformation projects, the box culvert unloading device and the box culvert turning mechanism can be removed. With the increasing number of large-section tunnel projects, the application scope and use value of this solution are also becoming more and more extensive.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integral high box culvert lifting system, characterized by: The box culvert crane (3) comprises a box culvert crane (3) arranged on the upper part of a trailer (2), a box culvert unloading device (4) arranged on the lower part of the trailer (2), and a flat plate support (5) arranged in the lifting direction of the box culvert; the box culvert crane (3) comprises a track assembly (301), a movable frame is arranged on the track assembly (301), and a lifting and turning mechanism and a grabbing mechanism capable of acting on the box culvert are arranged on the movable frame; the box culvert unloading device (4) comprises a main frame (401) arranged on both sides of the interior of the trailer (2), and a lifting mechanism and a lifting mechanism for driving the lifting mechanism to move up and down are arranged on the main frame (401).

2. The integral high box culvert lifting system according to claim 1 is characterized in that: The flat plate support (5) is located below the equipment bridge (1), and the equipment bridge (1) is overlapped between the front and rear trailers.

3. The integral high box culvert lifting system according to claim 2 is characterized in that: The track assembly (301) comprises a rear track arranged on the trailer (2) and a front track arranged on the equipment bridge (1), wherein the front track and the rear track are arranged in a front-to-back correspondence.

4. The integral high box culvert lifting system according to any one of claims 1 to 3, characterized in that: The mobile frame comprises a large frame (302) and a small frame (303); the large frame (302) is arranged on a track assembly (301) and can move forward and backward along the track assembly (301) under the action of a driving device; and the small frame (303) is arranged on the large frame (302) and can move left and right along the large frame (302) under the action of the driving device.

5. The integral high box culvert lifting system according to claim 4 is characterized in that: The lifting and turning mechanism is an electric hoist group (304), and the electric hoist group (304) is arranged on the trolley frame (303).

6. The integral high box culvert lifting system according to claim 5 is characterized in that: The grabbing mechanism comprises a C-shaped hook (306) and a rotating member (305) arranged on the trolley frame (303); the rotating member (305) is provided with a lifting driving member for driving the C-shaped hook (306) to move up and down.

7. The integral high box culvert lifting system according to claim 6 is characterized in that: The electric hoist group (304) is four linkage hoists, and each of the four linkage hoists is provided with a distance sensor; the lifting drive component is an electric hoist or a lifting cylinder.

8. The integral high box culvert lifting system according to claim 1 or 7, characterized in that: The lifting mechanism comprises a driving oil cylinder (402) arranged on a main frame (401); the lifting mechanism comprises a drag claw (403) capable of being extended left and right; the drag claw (403) is connected to the driving oil cylinder (402) and can move up and down under the action of the driving oil cylinder (402).

9. The integral high box culvert lifting system according to claim 8 is characterized in that: The drag claw (403) is provided with a distance sensor for monitoring the extension distance of the drag claw (403).

10. The integral high box culvert lifting system according to claim 1 or 9, characterized in that: The upper surface of the flat plate support (5) is an arc-shaped surface that matches the box culvert.

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