High-strength swivel bridge spherical hinge assembly

Abstract

The utility model relates to a high-strength swivel bridge spherical hinge assembly which comprises a spherical hinge support, a spherical hinge framework, a lower spherical hinge and an upper spherical hinge, a plurality of nut seats are evenly arranged on the surface of an upper frame of the spherical hinge framework, bolts are vertically connected in the nut seats, the spherical hinge support is placed between the upper end faces of the bolts, a hinge shaft is arranged in the center of the spherical hinge support, and the lower spherical hinge is arranged on the hinge shaft. A central hole is formed in the middle of the lower spherical hinge and sleeves the hinge shaft, the upper spherical hinge sleeves the lower spherical hinge, and a blind hole in the center of the upper spherical hinge sleeves the upper end of the hinge shaft in a matched manner; fine fine adjustment can be conducted on the spherical hinge support through the fine adjustment bolt on the spherical hinge framework, the installation levelness of the lower spherical hinge support is improved, the lower spherical hinge and the spherical hinge support reduce the hoisting weight of the lower spherical hinge through the split butt joint structure of the cross-shaped key groove and the cross-shaped key, safety is high, position adjustment in the hoisting process is facilitated, and the hoisting efficiency is improved. The installation precision of the spherical hinge assembly can be effectively improved, and the construction quality of the swivel bridge is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of swivel bridges, in particular to a high-strength swivel bridge ball joint assembly. Background Art

[0002] The rotating bridge is a special bridge construction technology that is suitable for bridge construction under complex and busy traffic conditions. When the site is limited or the traffic volume is large, the rotating construction can reduce the impact on the surrounding environment and traffic. The rotating bridge ball joint is a special mechanical device used in bridge engineering, usually used to realize the rotating construction of the bridge.

[0003] The ball joint structure of the swivel bridge is similar to a spherical millstone, with a concave surface on the lower millstone and a convex surface on the upper millstone. The lower millstone is connected to the main tower foundation, and the upper millstone bears the weight of the main tower and main beam. The upper ball joint is driven to rotate by the traction rope, and finally the tower beam is rotated. At present, the lower ball joint in the ball joint device is usually directly fixed on the embedded reinforcement of the base by welding, which is not convenient for adjusting the horizontality of the lower ball joint, and the deadweight of the lower ball joint is large, which affects the safety and stability of the hoisting operation, and further affects the overall installation quality of the ball joint device, which needs to be improved. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a high-strength swivel bridge ball joint assembly.

[0005] The technical solution of the utility model is: a high-strength swivel bridge ball joint assembly, including a ball joint support, a ball joint frame, a lower ball joint and an upper ball joint, the surface dimensions of the ball joint support and the ball joint frame are the same, a plurality of nut seats are evenly arranged on the surface of the upper frame of the ball joint frame, bolts are vertically connected in the nut seats, the ball joint support is placed between the upper end surfaces of the bolts, a hinge shaft is arranged at the center of the ball joint support, a center hole is arranged in the middle of the lower ball joint, the center hole is sleeved on the hinge shaft, the upper ball joint is sleeved on the lower ball joint and the blind hole in the center of the upper ball joint is matched and sleeved on the upper end of the hinge shaft.

[0006] Preferably, a plurality of circular through holes are evenly and densely distributed on the surface of the ball joint support, and circular through holes are provided in the middle and edge portions of the ball joint support.

[0007] Preferably, the surface of the ball joint support is provided with a cross-shaped slot with the hinge axis as the center, the slot extends outward to the side of the ball joint support, a key is installed in the slot, and a key slot matching the key is provided in a cross shape on the bottom surface of the lower ball joint.

[0008] Preferably, a plurality of circular grooves are evenly and densely distributed in the arc-shaped sliding surface of the lower ball joint, and polytetrafluoroethylene sliding sheets are installed in the circular grooves, and the polytetrafluoroethylene sliding sheets protrude outward from the arc-shaped sliding surface.

[0009] Preferably, the upper surface of the upper spherical hinge is an arc-shaped concave surface, and multiple circles of annular dividing ribs are arranged outward from the center of the arc-shaped concave surface, and the distances between the annular dividing ribs are the same.

[0010] Preferably, a number of radial dividing ribs are evenly distributed between the annular dividing ribs, and the outer ends of the radial dividing ribs extend to the outer side surface of the upper spherical hinge.

[0011] Preferably, the spherical hinge framework is a square frame structure, including a square upper frame and a square lower frame. The upper frame and the lower frame have the same size, and the upper frame and the lower frame are fixedly connected into one body by vertical legs.

[0012] Preferably, diagonal braces are provided at the corners of the upper frame and the lower frame. The positions of the ends of the diagonal braces correspond to the positions of the legs. The upper frame, the lower frame and the diagonal braces are all angle irons.

[0013] Preferably, a lubricant is evenly applied between the sliding joint surfaces of the upper spherical hinge and the lower spherical hinge.

[0014] The beneficial technical effects of the present utility model are as follows: The present utility model can finely adjust the spherical hinge support through the fine-tuning bolts on the spherical hinge framework, improve the levelness of the installation of the lower spherical hinge support, and the split docking structure of the lower spherical hinge and the spherical hinge support through the cross key grooves and cross keys reduces the hoisting weight of the lower spherical hinge, has high safety, is convenient for position adjustment during the hoisting process, can effectively improve the installation accuracy of the spherical hinge assembly, and ensure the construction quality of the rotating bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is Figure 1 the sectional structural schematic diagram of A-A direction of

[0017] Figure 3 is Figure 1 the structural schematic diagram after removing the upper spherical hinge;

[0018] Figure 4 is one of the structural schematic diagrams of the lower spherical hinge;

[0019] Figure 5 is another structural schematic diagram of the lower spherical hinge;

[0020] Figure 6 is the structural schematic diagram of the upper spherical hinge;

[0021] Figure 7 is the structural schematic diagram of the spherical hinge framework;

[0022] Figure 8 is the on-site use diagram of the present utility model.

[0023] In the figure, 01. spherical hinge support, 11. hinge shaft, 12. circular through-hole, 13. key, 02. spherical hinge skeleton, 21. upper frame, 22. lower frame, 23. leg, 24. diagonal brace, 25. nut seat, 26. bolt, 03. lower spherical hinge, 31. central hole, 32. PTFE sliding plate, 33. keyway, 04. upper spherical hinge, 41. blind hole, 42. arc-shaped concave surface, 43. annular dividing rib, 44. radial dividing rib, 51. lubricant. Specific implementation mode

[0024] Example 1, see the attached drawings of the specification Figure 1-2 As shown in FIGS. 4, 5-6, a high-strength rotating bridge spherical hinge assembly includes a spherical hinge support 01, a spherical hinge skeleton 02, a lower spherical hinge 03 and an upper spherical hinge 04. A plurality of nut seats 25 are evenly arranged on the surface of the upper frame 21 of the spherical hinge skeleton 02. A bolt 26 is vertically connected in the nut seat 25. The spherical hinge support 01 is placed between the upper end surfaces of these bolts 26. By rotating the fine-tuning bolt 26 on the spherical hinge skeleton 02, the spherical hinge support 01 is finely adjusted, and at the same time, a level is used for measurement to improve the levelness of the installation of the lower spherical hinge 03 support 01. A hinge shaft 11 is provided at the center of the spherical hinge support 01. A central hole 31 is provided in the middle of the lower spherical hinge 03. The central hole 31 is sleeved on the hinge shaft 11. The upper spherical hinge 04 is sleeved on the lower spherical hinge 03, and the blind hole 41 at the center of the upper spherical hinge 04 is fitted on the upper end of the hinge shaft 11.

[0025] A number of circular grooves are evenly distributed in the arc-shaped sliding surface of the lower spherical hinge 03. PTFE sliding plates 32 are installed in the circular grooves, and a lubricant 51 is evenly applied between the sliding joint surfaces of the upper spherical hinge 04 and the lower spherical hinge 03. The PTFE sliding plates 32 and the lubricant 51 provide lubrication for the sliding joint surface between the spherical hinges, reduce the friction between the two relative rotations, and improve the smoothness of the later rotating construction.

[0026] The upper surface of the upper spherical hinge 04 is an arc-shaped concave surface 42. A plurality of circles of annular dividing ribs 43 are provided outward from the center of the arc-shaped concave surface 42. A number of radial dividing ribs 44 are evenly distributed between the annular dividing ribs 43. The radial dividing ribs 44 and the annular dividing ribs 43 divide the arc-shaped concave surface 42 into several fan-shaped grooves. During the later pouring, the concrete can enter these fan-shaped grooves. This design is used to improve the firmness of the pouring combination between the upper spherical hinge 04 and the bottom turntable of the rotating bridge in the later stage.

[0027] Example 2, see the attached drawings of the specification Figure 2-3, 5. This embodiment is basically the same as Embodiment 1, and the same parts will not be described again. The difference is that a number of circular through-holes 12 are evenly distributed on the surface of the spherical hinge support 01. The size of the circular through-hole 12 matches the size of the vibrating rod used in concrete pouring. During the pouring process of the bearing platform of the spherical hinge, the vibrating rod can be inserted into the lower space of the spherical hinge support 01 through the circular through-hole 12 for vibration, improving the compactness of the concrete pouring in the lower space and ensuring the stability of the pouring of the skeleton and the spherical hinge support 01. A groove is provided on the surface of the spherical hinge support 01 in a cross shape centered on the hinge shaft 11. A key 13 is sleeved in the groove, and a key groove 33 that is matched and clamped on the key is provided on the bottom surface of the lower spherical hinge 03 in a cross shape. The spherical hinge support 01 and the lower spherical hinge 03 are docked through the cross-shaped key 13 and key groove 33 to limit the circumferential direction of the two, ensuring the stability of their connection and after pouring.

[0028] When the spherical hinge assembly is used, the spherical hinge support 01 is hoisted above the spherical hinge skeleton 02 by a crane, and then slowly placed between the upper ends of the fine-tuning bolts 26. The position is adjusted so that the spherical hinge support 01 and the spherical hinge skeleton 02 are aligned vertically. Then, the fine-tuning bolts 26 on the spherical hinge skeleton 02 are screwed one by one with a wrench. At the same time, the level of the spherical hinge skeleton 02 is monitored in real time by a level to finely adjust the level of the spherical hinge support 01. After the adjustment is completed, the lower spherical hinge 03 is hoisted by a crane and placed on the surface of the spherical hinge support 01. When adjusting the direction, the cross-shaped key groove 33 and the cross-shaped key are docked up and down to limit the circumferential direction of the spherical hinge and the support, ensuring the stability of their connection and after pouring. This split docking structure reduces the hoisting weight of the lower spherical hinge 03, has high safety, is convenient for position adjustment during the hoisting process, and can effectively improve the installation accuracy of the spherical hinge assembly.

[0029] Embodiment 3, see the attached drawings of the specification Figure 7 , This embodiment is basically the same as Embodiment 1. The difference is that the spherical hinge skeleton 02 is designed as a square frame structure, including a square upper frame 21 and a square lower frame 22. Both the upper frame 21 and the lower frame 22 are welded and fixed into one body by channel steel. The upper frame 21 and the lower frame 22 are fixedly connected into one body through vertical legs 23. Diagonal braces 24 are provided at the corners of the upper frame 21 and the lower frame 22. The positions of the ends of the diagonal braces 24 correspond to the positions of the legs 23. The diagonal braces 24 not only form a triangular structure with the frame for supporting and strengthening the skeleton, but also increase the bearing area on the surface of the upper frame 21, which is beneficial to providing stable support for the spherical hinge support 01.

Claims

1. A high-strength swivel bridge ball joint assembly, characterized by: It includes a ball joint support, a ball joint frame, a lower ball joint and an upper ball joint. The upper frame surface of the ball joint frame is evenly provided with a plurality of nut seats, and bolts are vertically connected in the nut seats. The ball joint support is placed between the upper end surfaces of these bolts. A hinge shaft is provided at the center of the ball joint support, a center hole is provided in the middle of the lower ball joint, and the center hole is sleeved on the hinge shaft. The upper ball joint is sleeved on the lower ball joint, and the blind hole in the center of the upper ball joint is matched and sleeved on the upper end of the hinge shaft.

2. The high-strength swivel bridge ball joint assembly according to claim 1 is characterized by: The surface of the ball joint support is evenly and densely covered with a plurality of circular through holes.

3. The high-strength swivel bridge ball joint assembly according to claim 1 is characterized by: The surface of the ball joint support is provided with a slot in a cross shape with the hinge shaft as the center, a key is set in the slot, and a key slot matching and clamped on the key is provided in a cross shape on the bottom surface of the lower ball joint.

4. The high-strength swivel bridge ball joint assembly according to claim 1 is characterized by: A plurality of circular grooves are evenly and densely distributed in the arc-shaped sliding surface of the lower ball joint, and polytetrafluoroethylene sliding sheets are installed in the circular grooves.

5. The high-strength swivel bridge ball joint assembly according to claim 1 is characterized by: The upper surface of the upper ball joint is an arc-shaped concave surface, and a plurality of circles of annular dividing ribs are arranged outward from the center of the arc-shaped concave surface.

6. The high-strength swivel bridge ball joint assembly according to claim 5 is characterized by: A plurality of radial dividing ribs are evenly distributed between the annular dividing ribs.

7. The high-strength swivel bridge ball joint assembly according to claim 1 is characterized by: The ball joint frame is a square frame structure, including a square upper frame and a square lower frame, and the upper frame and the lower frame are fixedly connected as a whole through vertical legs.

8. The high-strength swivel bridge ball joint assembly according to claim 7 is characterized by: The corners of the upper frame and the lower frame are both provided with diagonal bracing rods, and the positions of the ends of the diagonal bracing rods correspond to the positions of the supporting legs.

9. The high-strength swivel bridge ball joint assembly according to claim 1 is characterized by: Lubricant is evenly applied between the sliding joint surfaces of the upper ball joint and the lower ball joint.

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