Precise automatic turnover device for tunnel steel pipe pieces of various specifications

Abstract

The invention discloses a precise automatic turnover device for tunnel steel pipe pieces of various specifications, which comprises a supporting seat, a driving motor is arranged on the supporting seat, and a driving gear is arranged on the driving motor; the connecting shaft is rotationally connected to the supporting seat, a driven gear and a linkage piece are both connected to the connecting shaft, and the driving gear and the driven gear are connected through a synchronous belt; and the overturning auxiliary part is connected to the linkage part. The overturning device is hoisted by a travelling crane, the overturning belts can be arranged on the two sides of the steel pipe piece in a sleeving mode, the chain is connected to the rotating chain wheel, the driving motor drives the driving gear to rotate, and therefore the driven gear and the rotating chain wheel are driven to rotate, and the pipe piece is driven to rotate and turn over through the overturning belts; and the overturning belt penetrates through the limiting ring, so that the overturning belt is prevented from slipping, and the safety problem caused by clamping or hinging loosening is avoided.

Description

Technical Field

[0001] This invention belongs to the field of flipping device technology, and particularly relates to a precise automatic flipping device for tunnel steel segments of various specifications. Background Technology

[0002] Tunnel steel segments are key components used in tunnel construction to assemble the tunnel lining structure. They are usually made of steel and play an important role in ensuring the safety and stability of the tunnel structure and adapting to complex geological conditions.

[0003] Currently, the welding of tunnel steel segments requires continuous rotation to weld the outer wall of the segments. However, the current segment rotation operation still relies on a traditional manual collaborative mode. Rotating a single ring segment (typically weighing 8-12 tons) requires 4-6 workers to operate synchronously in a narrow working area using tools such as crowbars and slings. This operation presents multiple safety hazards: First, the lack of precise synchronization in manual operation can easily cause sudden overturning due to a shift in the segment's center of gravity, leading to crushing and collision accidents. Second, repeated friction between the slings and the segment edges can easily cause the wire ropes to break; there have been incidents of segments falling due to sling failure. Third, the frequent changes in worker positions during rotation can easily lead to spatial interference with surrounding lifting equipment and temporary supports; industry data from the past three years shows that this stage accounts for 42% of all accidents during segment installation.

[0004] Chinese Patent CN108502573B discloses a segment flipping device and a segment flipping machine, relating to the field of segment handling equipment technology. The segment flipping device includes a load-bearing unit and connecting units located at both ends of the load-bearing unit. The connecting units include a first hinge connecting the load-bearing unit and a second hinge connecting an external segment flipping machine. The segment flipping machine controls the relative positional relationship of the two second hinges to allow the segment flipping device to present different states, and the segments flip as the states of the device change. The segment flipping machine includes a moving unit, a driving unit, a first transmission unit, a second transmission unit, and the aforementioned segment flipping device. This application solves the technical problems of high manpower and time consumption, low work efficiency, and easy damage to segments during flipping.

[0005] Chinese Patent CN118618852B discloses an intelligent flipping device for tunnel segment processing, comprising a first electric push rod, a track support plate, a sliding support plate, a first clamping and flipping body, a second clamping and flipping body, and a third clamping and flipping body. This invention uses three clamping and flipping bodies with identical structures but different specifications. These bodies can clamp and fix tunnel segments of different sizes in a suitable manner. An angle sensor allows for precise detection and control of the rotation angle of the bottom bracket, enabling thorough flipping of the bottom bracket, the upper pressing frame, and the internally fixed tunnel segments. Furthermore, the angle sensor can control the rotation of the bottom bracket and the tunnel segments by a specified angle.

[0006] Chinese Patent CN106837376B, "Subway Tunnel Segment Capping Module Tilting Device," addresses the problem that existing subway tunnel segment capping module tilting processes require multiple personnel, resulting in time-consuming, labor-intensive, and safety-hazardous operations. This invention comprises a lower support frame and an upper support frame, both constructed from welded steel pipes. A fixed base is mounted on the upper end of the lower support frame, and a hinged base is mounted on the lower end of the upper support frame. The installed upper support frame can tilt relative to the lower support frame. A drive system is located inside the lower support frame, hinged to the lower end of the upper support frame via a connecting rod. A tilting device mounting slide is located at the lower end of the upper support frame, housing the tilting device. This invention's subway tunnel segment capping module tilting device offers sensitive tilting action, simplified operation procedures, and reduced costs, representing a future direction for construction segment tilting machinery.

[0007] However, existing technologies typically use clamping and hinged flipping to achieve flipping. If the clamping becomes loose or the hinged flipping angle is excessively twisted, it can lead to personnel safety issues. Summary of the Invention

[0008] The purpose of this invention is to address the problem that existing technologies typically employ clamping and hinged flipping to achieve flipping, which can lead to personnel safety issues if the clamping becomes loose or the hinged flipping angle is excessively twisted. Therefore, this invention proposes a precise automatic flipping device for tunnel steel segments of various specifications.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a precise automatic flipping device for tunnel steel segments of various specifications, comprising:

[0010] A support base on which a drive motor is mounted, and the drive motor is equipped with a drive gear;

[0011] A connecting shaft is rotatably connected to the support base. The driven gear and the linkage are both connected to the connecting shaft. The driving gear and the driven gear are connected by a synchronous belt.

[0012] And a flipping auxiliary component, which is connected to the linkage component.

[0013] As a further description of the above technical solution:

[0014] The support base includes a connecting base and a support leg. The drive motor is connected to the connecting base via a mounting plate, and the support leg is connected to the bottom of the connecting base.

[0015] As a further description of the above technical solution:

[0016] The connecting seat is equipped with a hoisting connecting plate.

[0017] As a further description of the above technical solution:

[0018] The bottom of the connecting seat is provided with several connecting plates, and each of the several connecting plates is provided with a bearing, and the connecting shaft is connected to the bearing.

[0019] As a further description of the above technical solution:

[0020] The linkage component is a rotating sprocket, which is symmetrically arranged on both sides of the driven gear.

[0021] As a further description of the above technical solution:

[0022] The supporting leg is A-shaped.

[0023] As a further description of the above technical solution:

[0024] The connecting shaft is provided with several limiting sleeves, which are located on both sides of the bearing.

[0025] As a further description of the above technical solution:

[0026] The flipping auxiliary component includes a chain and a flipping belt. The flipping belt is connected to the chain, the chain is connected to a rotating sprocket, and the flipping belt is sleeved on the steel pipe segment.

[0027] As a further description of the above technical solution:

[0028] An adjustment auxiliary frame is also provided, which includes an adjustment frame and a support frame. Limiting plates are hinged to both sides of the adjustment frame. The top and side walls of the limiting plates are respectively provided with fixing screws and positioning screws. A connecting ring is provided at the top of the adjustment frame. Several guide grooves are provided on the support frame. Several sliders are provided at the bottom of the adjustment frame. The sliders are slidably connected to the guide grooves.

[0029] As a further description of the above technical solution:

[0030] Both the adjustment frame and the support frame are arc-shaped, and the support frame is provided with a number of positioning holes.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] 1. In this invention, a drive motor is installed on the support base, and a drive gear is installed on the drive motor. The connecting shaft is connected to the support base through bearings. The driven gear and the linkage are both connected to the connecting shaft. The drive gear and the driven gear are connected by a synchronous belt. The overturning device is lifted by a crane, and the overturning belt can be sleeved on both sides of the steel pipe segment. The chain is connected to the rotating sprocket. The drive motor drives the drive gear to rotate, thereby driving the driven gear and the rotating sprocket to rotate. This realizes that the pipe segment is rotated and overturned by the overturning belt. A limit ring can also be set on the steel pipe segment. The overturning belt passes through the limit ring to prevent the overturning belt from slipping. The mechanical structure has a load-bearing capacity of more than twice the weight of the pipe segment and reserves sufficient safety margin. This structure avoids safety problems caused by loose clamping or hinge.

[0033] 2. In this invention, the turning belt is connected to the bottom of the chain, and the chain and the rotating sprocket mesh with each other, so that the turning belt is driven to rotate, thereby ensuring the stability of the turning when the steel pipe is turned.

[0034] 3. In this invention, several symmetrical linkage components are arranged on both sides of the driven gear, which can lift and flip the segments of different specifications according to the needs, making it highly applicable.

[0035] 4. In this invention, an adjustment auxiliary frame is also provided, which cooperates with the flipping auxiliary component in the device. The flipping auxiliary component only includes a chain and a hook. The hook is hooked onto the connecting rings on both sides of the adjustment frame. When a certain angle needs to be flipped, the chain is simply driven to rotate on the rotating sprocket, thereby driving the adjustment frame to move in the guide groove on the support frame. After moving to a certain angle, the steel pipe segment is positioned by passing a screw through the positioning hole and then processed. After processing is completed, the screw is removed, and the chain is driven to rotate on the rotating sprocket to adjust the new angle to suit the processing of the steel pipe segment. This structure eliminates the need to use a flipping device to continuously flip the steel pipe segment, place it on the ground, and then position it before processing it, greatly reducing processing steps and improving processing efficiency. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a three-dimensional representation of an embodiment of a precision automatic flipping device for tunnel steel segments of various specifications. Figure 1 .

[0038] Figure 2 This is a three-dimensional representation of an embodiment of a precision automatic flipping device for tunnel steel segments of various specifications. Figure 2 .

[0039] Figure 3 This is a three-dimensional representation of an embodiment of a precision automatic flipping device for tunnel steel segments of various specifications. Figure 3 .

[0040] Figure 4 This is a three-dimensional representation of an embodiment of a precision automatic flipping device for tunnel steel segments of various specifications. Figure 4 .

[0041] Figure 5 This is a three-dimensional representation of an embodiment of a precision automatic flipping device for tunnel steel segments of various specifications. Figure 5 .

[0042] Figure 6 This is a schematic diagram of the flipping auxiliary component in an embodiment of a precision automatic flipping device for tunnel steel segments of various specifications.

[0043] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of a precision automatic flipping device for tunnel steel segments of various specifications.

[0044] Figure 8 This is a schematic diagram of the positioning frame in Embodiment 2 of a precision automatic flipping device for tunnel steel segments of various specifications.

[0045] Figure 9 This is a schematic diagram of the adjusting frame in Embodiment 2 of a precision automatic flipping device for tunnel steel segments of various specifications. Figure 2 .

[0046] Legend:

[0047] 1-Support base; 1a-Connecting base; 1b-Support leg; 2-Drive motor; 3-Driving gear; 4-Connecting shaft; 5-Driven gear; 6-Linking component; 7-Synchronous belt; 8-Tilting auxiliary component; 9-Lifting connecting plate; 10-Connecting plate; 11-Bearing; 12-Limit sleeve; 13-Mounting plate; 14-Adjustment auxiliary frame; 141-Adjustment frame; 142-Bearing frame; 15-Limit plate; 16-Fixing screw; 17-Positioning screw; 18-Connecting ring; 19-Guide groove; 20-Slider; 21-Positioning hole. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0051] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0052] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0053] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0054] Example 1

[0055] Please see Figure 1-6 This invention provides a technical solution: a precise automatic flipping device for tunnel steel segments of various specifications, comprising:

[0056] A support base 1 is provided on which a drive motor 2 is provided, and a drive gear 3 is provided on the drive motor 2;

[0057] A connecting shaft 4 is rotatably connected to the support base 1. The driven gear 5 and the linkage 6 are both connected to the connecting shaft 4. The driving gear 3 and the driven gear 5 are connected by a synchronous belt 7.

[0058] And a flipping auxiliary component 8, which is connected to the linkage component 6.

[0059] The support base 1 includes a connecting base 1a and a support leg 1b. The drive motor 2 is connected to the connecting base 1a via a mounting plate 13, and the support leg 1b is connected to the bottom of the connecting base 1a.

[0060] The connecting seat 1a is provided with a hoisting connecting plate 9.

[0061] The bottom of the connecting seat 1a is provided with a plurality of connecting plates 10, and each of the plurality of connecting plates 10 is provided with a bearing 11, and the connecting shaft 4 is connected to the bearing 11.

[0062] The linkage 6 is a rotating sprocket, which is symmetrically arranged on both sides of the driven gear 5.

[0063] The supporting leg 1b is A-shaped.

[0064] The connecting shaft 4 is provided with a plurality of limiting sleeves 12, which are located on both sides of the bearing 11.

[0065] The flipping auxiliary component 8 includes a chain and a flipping belt. The flipping belt is connected to the chain, the chain is connected to the rotating sprocket, and the flipping belt is sleeved on the steel pipe segment.

[0066] Working principle: A drive motor is installed on the support base, and a drive gear is installed on the drive motor. The connecting shaft is connected to the support base through bearings. The driven gear and the linkage are both connected to the connecting shaft. The drive gear and the driven gear are connected by a synchronous belt. The overturning device is lifted by a crane, and the overturning belt can be sleeved on both sides of the steel pipe segment. The chain is connected to the rotating sprocket. The drive motor drives the drive gear to rotate, thereby driving the driven gear and the rotating sprocket to rotate. This realizes the overturning of the pipe segment by rotating it through the overturning belt. Limit rings can also be set on the steel pipe segment. The overturning belt passes through the limit rings to prevent the overturning belt from slipping. The mechanical structure has a load-bearing capacity of more than twice the weight of the pipe segment and provides sufficient safety margin. This structure avoids safety problems caused by loose clamping or hinges.

[0067] Example 2

[0068] Please see Figure 7-9 This invention provides a technical solution: a precise automatic flipping device for tunnel steel segments of various specifications, further comprising an adjustment auxiliary frame 14. The adjustment auxiliary frame 14 includes an adjustment frame 141 and a support frame 142. Limiting plates 15 are hinged to both sides of the adjustment frame 141. Fixing screws 16 and positioning screws 17 are respectively provided on the top and side walls of the limiting plates 15. A connecting ring 18 is provided on the top of the adjustment frame 141. Several guide grooves 19 are provided on the support frame 142. Several sliders 20 are provided at the bottom of the adjustment frame 141, and the sliders 20 are slidably connected to the guide grooves 19. Limiting blocks are also provided on both sides of the guide grooves 19 to prevent the adjustment frame from detaching from the guide grooves during movement, thus improving safety.

[0069] Both the adjusting frame 141 and the support frame 142 are arc-shaped, and the support frame 142 is provided with a plurality of positioning holes 21. The adjusting frame can be limited by a screw according to the rotation angle, thereby enabling the processing robot to process the steel pipe segments.

[0070] Working principle: An adjustment auxiliary frame is also set up so that it can cooperate with the flipping auxiliary component in the device. The flipping auxiliary component only includes a chain and hooks. The hooks are hooked on the connecting rings on both sides of the adjustment frame. When a certain angle needs to be flipped, simply drive the chain to rotate on the rotating sprocket, thereby driving the adjustment frame to move in the guide groove on the carrier frame. After moving to a certain angle, the screw is used to pass through the positioning hole to position the steel pipe segment and then process it. After processing is completed, the screw is removed, and the chain is driven to rotate on the rotating sprocket to adjust the new angle to suit the processing of the steel pipe segment. This structure eliminates the need to use a flipping device to repeatedly flip the steel pipe segment, place it on the ground, and then position it before processing it, greatly reducing the processing steps and improving processing efficiency.

[0071] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A precise automatic flipping device for tunnel steel segments of various specifications, characterized in that, include: A support base on which a drive motor is mounted, and the drive motor is equipped with a drive gear; A connecting shaft is rotatably connected to the support base. The driven gear and the linkage are both connected to the connecting shaft. The driving gear and the driven gear are connected by a synchronous belt. And a flipping auxiliary component, which is connected to the linkage component.

2. The precise automatic flipping device for tunnel steel segments of various specifications according to claim 1, characterized in that, The support base includes a connecting base and a support leg. The drive motor is connected to the connecting base via a mounting plate, and the support leg is connected to the bottom of the connecting base.

3. The precise automatic flipping device for tunnel steel segments of various specifications according to claim 2, characterized in that, The connecting seat is equipped with a hoisting connecting plate.

4. The precise automatic flipping device for tunnel steel segments of various specifications according to claim 3, characterized in that, The bottom of the connecting seat is provided with several connecting plates, and each of the several connecting plates is provided with a bearing, and the connecting shaft is connected to the bearing.

5. A precise automatic flipping device for tunnel steel segments of various specifications according to claim 1, characterized in that, The linkage component is a rotating sprocket, which is symmetrically arranged on both sides of the driven gear.

6. A precise automatic flipping device for tunnel steel segments of various specifications according to claim 2, characterized in that... The supporting leg is A-shaped.

7. A precise automatic flipping device for tunnel steel segments of various specifications according to claim 1, characterized in that, The connecting shaft is provided with several limiting sleeves, which are located on both sides of the bearing.

8. A precise automatic flipping device for tunnel steel segments of various specifications according to claim 5, characterized in that, The flipping auxiliary component includes a chain and a flipping belt. The flipping belt is connected to the chain, the chain is connected to a rotating sprocket, and the flipping belt is sleeved on the steel pipe segment.

9. A precise automatic flipping device for tunnel steel segments of various specifications according to claim 1, characterized in that, An adjustment auxiliary frame is also provided, which includes an adjustment frame and a support frame. Limiting plates are hinged to both sides of the adjustment frame. The top and side walls of the limiting plates are respectively provided with fixing screws and positioning screws. A connecting ring is provided at the top of the adjustment frame. Several guide grooves are provided on the support frame. Several sliders are provided at the bottom of the adjustment frame. The sliders are slidably connected to the guide grooves.

10. A precise automatic flipping device for tunnel steel segments of various specifications according to claim 9, characterized in that, Both the adjustment frame and the support frame are arc-shaped, and the support frame is provided with a number of positioning holes.

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