Rotation limiting device for swivel bridge
By designing a rotation limiting device for a rotating bridge, the meshing of gears and sawtooths drive the insertion ring and limiting block rotation, the problem of inaccurate positioning caused by overturning of bridges in the prior art is solved, and the accurate installation of the bridge is achieved.
Patent Information
- Application Number
- CN202422207158.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-10
AI Technical Summary
The existing rotating bridges often overturn due to the lack of limit measures when controlling rotation, resulting in inaccurate positioning of the bridge and thus unable to be installed normally.
A rotation limiting device for a rotating bridge is designed, including a base, a ball hinge seat, a ball hinge body, an embed ring, a saw tooth, a connection shaft, a gear and a limit block, and the insert ring and a limit block are driven to rotate through the meshing of the gear and a saw tooth, and the insert ring and a limit block are achieved by combining nuts and welding fixing to achieve the limit on the rotation of the bridge.
It effectively avoids the phenomenon of overturning of bridges, ensures the accuracy of the positioning of the bridge, and thus ensures the normal installation of the bridge.
Smart Images
Figure CN222990594U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge installation, and particularly relates to a rotation limiting device for a rotating bridge. Background Technique
[0002] A rotating bridge is a bridge constructed by the rotation method. The rotation construction of a bridge refers to a construction method in which the bridge structure is fabricated (cast or spliced) at a non-designed axis position and then rotated into place. It can convert the operation over obstacles into an operation on the shore or near the ground. According to the rotation direction of the bridge structure, it can be divided into the vertical rotation construction method, the horizontal rotation construction method (abbreviated as the vertical rotation method and the horizontal rotation method), and the method combining horizontal rotation and vertical rotation.
[0003] However, when controlling the rotation of existing rotating bridges, due to the lack of limiting measures, over-rotation often occurs. This is because there are errors in mechanical and human operations. This over-rotation phenomenon will lead to inaccurate positioning of the bridge, and further cause the bridge to be unable to be installed normally.
[0004] In view of this, the utility model proposes a rotation limiting device for a rotating bridge. Content of the Utility Model
[0005] The utility model proposes a rotation limiting device for a rotating bridge, which solves the problem that in the related art, when controlling the rotation of an existing rotating bridge, due to the lack of limiting measures, over-rotation often occurs. This is because there are errors in mechanical and human operations. This over-rotation phenomenon will lead to inaccurate positioning of the bridge, and further cause the bridge to be unable to be installed normally.
[0006] The technical solution of the utility model is as follows: A rotation limiting device for a rotating bridge includes a base. A ball hinge seat is fixedly connected to the top of the base. A ball hinge body is rotatably connected to the top of the ball hinge seat. A clamping groove is arranged on the surface of the ball hinge body. An embedding ring is embedded in the clamping groove. Sawteeth are fixedly connected to the side surface of the embedding ring. A connecting shaft is fixedly connected to the top of the base on one side of the ball hinge seat. Two groups of nuts are threadedly connected to the surface of the connecting shaft. Gears rotatably connected to the connecting shaft are arranged at one ends of the two groups of nuts. A moving block is fixedly connected to the side surface of the ball hinge body.
[0007] Preferably, a chassis is fixedly connected above the base under the embedding ring. A frame is fixedly connected to the top of the chassis.
[0008] Preferably, the centers of the embedding ring and the ball hinge seat are at the same point. The sawteeth are arranged at equal intervals in a ring shape with respect to the center of the embedding ring.
[0009] Preferably, the limiting block is perpendicular to the embedding ring, and the limiting block forms a rotating structure through the embedding ring.
[0010] Preferably, the moving block is located on the moving track of the limiting block.
[0011] Preferably, the gear and the sawtooth are in mutual meshing state, and the sawtooth drives the embedded ring through the gear to form a rotating structure.
[0012] Preferably, the center of the gear coincides with that of the connecting shaft, and the gear forms a fixed structure through a nut.
[0013] Preferably, the slot is designed as an annular structure on the surface of the connecting shaft, and the embedded ring is rotatably connected to the inside of the slot and fits tightly therewith.
[0014] Preferably, the bottom plate and the bottom of the embedding ring fit each other, and the diameter of the bottom plate is larger than that of the embedding ring.
[0015] Preferably, the frame is in a circular ring shape to wrap the side of the chassis, and the top of the chassis is smooth in design.
[0016] The working principle and beneficial effects of the utility model are:
[0017] 1. In the utility model, a limit block is provided to drive the gear to start rotating around the connecting shaft. When the gear rotates, it will drive the sawtooth meshing with itself to rotate. At this time, the sawtooth drives the embedded ring and the limit block to start rotating around the slot. When it rotates to the specified position, the two sets of nuts can be tightened to fix the gear, and the nuts and the connecting shaft are welded and fixed. At this time, when the bridge body is driven to rotate by the ball joint body, when the bridge body moves to the specified position, the moving block will conflict with the limit block, thereby playing a limiting role.
[0018] 2. In the utility model, a chassis is provided. In order to avoid frictional resistance between the chassis and the chassis, lubricating oil can be dripped on the chassis, so that the embedded ring can rotate more smoothly on the chassis. Under the effect of the frame, the frame can wrap the side of the chassis to effectively prevent the lubricating oil from spilling out of the chassis. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0021] Figure 2 This is a schematic diagram of the frame structure of the utility model;
[0022] Figure 3 This is a schematic diagram of the gear structure of the utility model;
[0023] Figure 4This is a schematic diagram of the limit block structure of the utility model.
[0024] In the figure: 1. base; 2. ball joint seat; 3. ball joint body; 4. embedding ring; 5. connecting shaft; 6. nut; 7. gear; 8. slot; 9. serration; 10. limit block; 11. chassis; 12. frame; 13. moving block. DETAILED DESCRIPTION
[0025] The following will be combined with 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 of 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.
[0026] Example 1
[0027] A preferred embodiment of a rotation limiting device for a rotating bridge provided by the utility model is as follows: Figures 1 to 4 As shown: a rotation limit device for a rotating bridge, including a base 1, a ball joint seat 2 is fixedly connected to the top of the base 1, a ball joint body 3 is rotatably connected to the top of the ball joint seat 2, a groove 8 is provided on the surface of the ball joint body 3, an embedding ring 4 is embedded in the groove 8, and a sawtooth 9 is fixedly connected to the side of the embedding ring 4, a connecting shaft 5 located on one side of the ball joint seat 2 is fixedly connected to the top of the base 1, two sets of nuts 6 are threadedly connected to the surface of the connecting shaft 5, one end of the two sets of nuts 6 is provided with a gear 7 rotatably connected to the connecting shaft 5, and a moving block 13 is fixedly connected to the side of the ball joint body 3.
[0028] In this embodiment, the centers of the embedded ring 4 and the ball joint seat 2 are located at the same point, and the serrations 9 are arranged in a ring-shaped manner and equidistantly about the center of the embedded ring 4. By setting the serrations 9, the embedded ring 4 can be driven to rotate around the slot 8 with the cooperation of the gear 7.
[0029] In this embodiment, the limit block 10 and the embedded ring 4 are arranged perpendicular to each other. The limit block 10 forms a rotating structure through the embedded ring 4. By setting the limit block 10, the moving block 13 can be limited when it rotates to a specified position.
[0030] In this embodiment, the moving block 13 is located on the movement trajectory of the limit block 10. When the bridge body is driven to rotate by the ball joint body 3, when the bridge body moves to the specified position, the moving block 13 will conflict with the limit block 10, thereby playing a limiting role.
[0031] In this embodiment, the gear 7 and the sawtooth 9 are in a state of mutual meshing. The sawtooth 9 drives the embedded ring 4 through the gear 7 to form a rotating structure. The gear 7 is turned to start rotating around the connecting shaft 5. When it rotates, it will drive the sawtooth 9 meshing with itself to rotate. At this time, the sawtooth 9 drives the embedded ring 4 and the limit block 10 to start rotating around the slot 8.
[0032] In this embodiment, the center of the gear 7 coincides with that of the connecting shaft 5, and the gear 7 forms a fixed structure through the nut 6. When it is rotated to the specified position, the two sets of nuts 6 can be tightened to fix the gear 7, and the nuts 6 and the connecting shaft 5 can be welded and fixed to prevent the bridge from rotating too much and causing the gear 7 to rotate. The position of the limit block 10 needs to be readjusted.
[0033] In this embodiment, the slot 8 is designed as an annular structure on the surface of the connecting shaft 5, and the embedded ring 4 is rotatably connected to the inside of the slot 8 and fits tightly therewith. By setting the slot 8, the connecting shaft 5 can drive the limit block 10 to rotate around itself, thereby adjusting the position on the motion trajectory of the moving block 13.
[0034] Example 2
[0035] On the basis of Example 1, a preferred embodiment of a rotation limit device for a rotating bridge provided by the utility model is as follows: Figures 1 to 4 As shown: a bottom plate 11 located below the embedding ring 4 is fixedly connected to the top of the base 1 , and a frame 12 is fixedly connected to the top of the bottom plate 11 .
[0036] In this embodiment, the bottom plate 11 and the bottom of the embedded ring 4 fit each other, and the diameter of the bottom plate 11 is larger than that of the embedded ring 4 , so that the bottom of the embedded ring 4 can be completely in contact with the bottom plate 11 .
[0037] In this embodiment, the frame 12 is in a circular shape and wraps the side of the chassis 11. The top of the chassis 11 is designed to be smooth. Under the effect of the frame 12, the frame 12 can wrap the side of the chassis 11 and effectively prevent the lubricating oil from spilling out of the chassis 11.
[0038] The working principle and use process of the utility model are as follows: first, when the device is used, when the ball joint body 3 is rotated, in order to avoid the bridge body from rotating too much when the ball joint body 3 rotates, so that it cannot dock with the part that needs to be aligned, the point to which the ball joint body 3 drives the moving block 13 to move can be measured in advance, and the gear 7 is turned to start rotating around the connecting shaft 5. When it rotates, it will drive the sawtooth 9 meshing with itself to rotate. At this time, the sawtooth 9 drives the embedded ring 4 and the limit block 10 to start rotating around the slot 8. When the limit block 10 rotates to the specified position, the two sets of nuts 6 can be tightened to tighten the gears. The wheel 7 is fixed, and the nut 6 and the connecting shaft 5 are welded and fixed. At this time, when the bridge body is driven to rotate by the ball joint body 3, when the bridge body moves to the specified position, the moving block 13 will conflict with the limit block 10 to play a limiting role. When the embedded ring 4 rotates, in order to avoid friction resistance with the chassis 11, lubricating oil can be dripped on the chassis 11 to make the embedded ring 4 rotate more smoothly on the chassis 11. Under the effect of the frame 12, the frame 12 can wrap the side of the chassis 11 to effectively prevent the lubricating oil from spilling from the chassis 11.
[0039] The above are only preferred embodiments of the present invention and are 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. A rotation limiting device for a rotating bridge, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a ball joint seat (2), the top of the ball joint seat (2) is rotatably connected to a ball joint body (3), a slot (8) is provided on the surface of the ball joint body (3), an embedded ring (4) is embedded inside the slot (8), and a sawtooth (9) is fixedly connected to the side of the embedded ring (4), the top of the base (1) is fixedly connected to a connecting shaft (5) located on one side of the ball joint seat (2), the surface of the connecting shaft (5) is threadedly connected to two groups of nuts (6), one end of the two groups of nuts (6) is provided with a gear (7) rotatably connected to the connecting shaft (5), and the side of the ball joint body (3) is fixedly connected to a moving block (13).
2. A rotation limiting device for a rotating bridge according to claim 1, characterized in that: A bottom plate (11) located below the embedding ring (4) is fixedly connected to the top of the base (1), and a frame (12) is fixedly connected to the top of the bottom plate (11).
3. The rotation limiting device for a rotating bridge according to claim 1, characterized in that: The centers of the embedded ring (4) and the ball joint seat (2) are located at the same point, and the saw teeth (9) are arranged in a circular shape and at equal distances with respect to the center of the embedded ring (4).
4. The rotation limiting device for a rotating bridge according to claim 1, characterized in that: The limit block (10) and the embedded ring (4) are arranged perpendicular to each other, and the limit block (10) forms a rotating structure through the embedded ring (4).
5. The rotation limiting device for a rotating bridge according to claim 1, characterized in that: The moving block (13) is located on the moving track of the limiting block (10).
6. The rotation limiting device for a rotating bridge according to claim 1, characterized in that: The gear (7) and the saw teeth (9) are in a mutually meshing state, and the saw teeth (9) drive the embedded ring (4) through the gear (7) to form a rotating structure.
7. The rotation limiting device for a rotating bridge according to claim 1, characterized in that: The center of the gear (7) coincides with the center of the connecting shaft (5), and the gear (7) forms a fixed structure through a nut (6).
8. The rotation limiting device for a rotating bridge according to claim 1, characterized in that: The clamping groove (8) is designed as an annular structure on the surface of the connecting shaft (5), and the embedded ring (4) is rotatably connected to the inside of the clamping groove (8) and fits tightly therewith.
9. The rotation limiting device for a rotating bridge according to claim 2, characterized in that: The bottom plate (11) and the bottom of the embedding ring (4) are in contact with each other, and the diameter of the bottom plate (11) is larger than that of the embedding ring (4).
10. The rotation limiting device for a rotating bridge according to claim 2, characterized in that: The frame (12) is in a circular ring shape and wraps around the side of the chassis (11), and the top of the chassis (11) is designed to be smooth.