CN214459733U - High-bearing-capacity swivel support for assisting posture adjustment of bridge - Google Patents
High-bearing-capacity swivel support for assisting posture adjustment of bridge Download PDFInfo
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- CN214459733U CN214459733U CN202023117614.8U CN202023117614U CN214459733U CN 214459733 U CN214459733 U CN 214459733U CN 202023117614 U CN202023117614 U CN 202023117614U CN 214459733 U CN214459733 U CN 214459733U
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Abstract
A high-bearing capacity swivel support for assisting in adjusting the posture of a bridge comprises a support top plate and a support bottom plate, wherein a convex spherical surface on the bottom surface of the support top plate is matched with a concave spherical surface on the top surface of the support bottom plate, and a central groove of the convex spherical surface is matched with a central convex shaft of the concave spherical surface; the bottom of the support base plate is connected with a leveling mechanism, the leveling mechanism comprises a leveling steel plate and a leveling component, a friction layer I on the surface of a convex spherical surface and a friction layer II on the surface of a concave spherical surface form a spherical friction pair, the friction layer I is a polishing layer or a chromium coating or a coated stainless steel plate, the friction layer II is a Cu-PTFE metal composite material layer, the friction layer II is an integral layer or a split layer, the circumference of a convex shaft is coated with the Cu-PTFE metal composite material layer, and the top surface of a support top plate is provided with an annular reinforcing rib and a radial reinforcing rib. The swivel support has the advantages of small volume, low cost, convenient processing and transportation, convenient field installation, positioning and leveling, high bearing capacity of the spherical friction pair, small compression deformation and good rotational stability of the support.
Description
Technical Field
The utility model belongs to the technical field of bridge engineering, a turning construction equipment is related to, especially a high bearing capacity support of turning that is used for supplementary bridge gesture adjustment.
Background
Along with the development of the highway traffic industry in China, more and more newly-built bridges need to cross over the existing railway or highway, in order to reduce the influence of bridge construction on traffic operation, bridge turning construction technology has been widely applied, a core component in turning construction is a turning spherical hinge device, and the existing turning spherical hinge device has the following problems:
(1) the lower part of a spherical hinge of a traditional swivel spherical hinge device is provided with a positioning framework, the construction sequence is that concrete is poured to a reserved notch, then the framework is put down, the framework is positioned and fixed, then the concrete is poured, the construction process and the positioning precision have high requirements, measures need to be taken during pouring to ensure that the framework does not shift, the site positioning and leveling are difficult, and the construction quality is difficult to ensure;
(2) the traditional spherical hinge positioning framework is large in size, inconvenient to manufacture and transport, inconvenient to hoist, position and level on site, long in construction period and high in construction cost, and the positioning framework needs to be poured twice in construction;
(3) the spherical hinge needs to be assembled on site, and the installation precision is low;
(4) the spherical friction pair is formed by a polytetrafluoroethylene plate and a stainless steel plate surface of a swivel spherical hinge, the polytetrafluoroethylene plates are distributed dispersedly, and the problems that firstly, the compressive stress of polytetrafluoroethylene is controlled, the overall size of the spherical hinge is large, and the manufacturing and transportation are difficult, secondly, a small polytetrafluoroethylene sliding plate needs to be embedded in a groove of a lower spherical hinge steel plate during lower spherical surface processing, and because the tonnage of the swivel spherical hinge is large, hundreds of grooves need to be processed generally, the processing cost and the time cost are high, and in addition, a sliding block and the groove need to be numbered first during field installation, and the lower spherical hinge is installed by corresponding to the groove, so that the swivel spherical hinge is complicated and time-consuming;
(5) in addition, the existing polytetrafluoroethylene sliding plate is made of non-metallic materials, has low mechanical property, poor bearing capacity and abrasion resistance, and has the mutual restriction relationship among the bearing capacity, deformation, friction coefficient and stability: the stability is poor due to strong bearing capacity, small deformation and large friction coefficient; otherwise, the bearing capacity is low, the deformation is large, the friction coefficient is small, and the rotation stability of the spherical hinge is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the high-bearing capacity swivel support for assisting the posture adjustment of the bridge has a simple structure, is economical and practical, and overcomes the defects in the prior art.
The utility model adopts the technical proposal that: a high-bearing capacity swivel support for assisting in adjusting the posture of a bridge comprises a support top plate and a support bottom plate, wherein the support top plate and the support bottom plate form a swivel spherical hinge; the bottom of the support base plate is connected with a leveling mechanism, the leveling mechanism comprises a leveling steel plate and a leveling part, the leveling part comprises an adjusting screw I, an adjusting screw II, an adjusting pipe and a fastening nut, the upper end of the adjusting screw I penetrates through a mounting hole of the leveling steel plate and a bolt hole of a support base plate flange to be connected with the fastening nut at the upper part, the lower end of the adjusting screw I is in threaded connection with the adjusting pipe positioned on the bottom surface of the leveling steel plate, and the lower end of the adjusting pipe is in threaded connection with the adjusting screw II;
the spherical friction pair is characterized in that a friction layer I is arranged on the surface of the convex spherical surface, a friction layer II is arranged on the surface of the concave spherical surface, the friction layer II and the friction layer I form a spherical friction pair, the friction layer I is a polished layer or a chromium-plated layer or a coated stainless steel plate, and the friction layer II is a Cu-PTFE metal composite material layer.
The further technical scheme is as follows: the friction layer II formed by the Cu-PTFE metal composite material layer is an integral layer or a split layer, the split layer comprises a central disk plate and peripheral fan-shaped plates, the peripheral fan-shaped plates are uniformly distributed around the central disk plate according to the circumference, and the circular ring belt formed by the peripheral fan-shaped plates is one ring or multiple rings.
Further: the circumference of a convex shaft of the concave spherical surface of the bottom plate of the support is coated with a Cu-PTFE metal composite material layer.
Further: the top surface of the top plate of the support is provided with an annular reinforcing rib and a radial reinforcing rib.
Owing to adopt above-mentioned structure, compare with prior art, the utility model relates to a high bearing capacity support of turning for assisting bridge gesture adjustment has following beneficial effect:
(1) the lower part of the traditional spherical hinge is provided with a positioning framework, which has large volume, inconvenient manufacture and transportation and difficult field positioning and leveling,
the leveling steel plate and the leveling component are used in the utility model, thereby not only saving a positioning framework with huge volume, but also being convenient for processing and transportation, being capable of positioning on site, being convenient for leveling, reducing the difficulty of on-site installation and improving the construction efficiency;
(2) the top surface of the support top plate is provided with the annular reinforcing rib and the radial reinforcing rib, so that the stress strength of the support top plate is increased, the steel consumption is reduced, and the manufacturing cost is reduced;
(3) the plate spherical friction pair of the support top plate and the support bottom consists of a stainless steel plate (a chromium plating layer or a polished layer) and a Cu-PTFE metal composite material layer, and the friction pair has the advantages of high bearing capacity and small compression deformation, so that the size of the support can be reduced, and the rotation stability of the support can be improved;
(4) the traditional spherical friction pair of the spherical hinge is composed of a stainless steel plate and a polytetrafluoroethylene plate, wherein the polytetrafluoroethylene plate is arranged in a dispersed manner, hundreds of grooves with the diameter of 60-80 mm are machined in a lower spherical hinge panel, and then a polytetrafluoroethylene sliding sheet is embedded in the grooves, so that the effective bearing area is small, the bearing capacity is low, and the size of the whole spherical hinge is increased;
(5) the circumference of the convex shaft of the concave spherical surface of the support is coated with a Cu-PTFE metal composite material layer, which is beneficial to the rotation of the top plate of the support.
The technical features of a high bearing capacity swivel support for assisting the posture adjustment of a bridge according to the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
Fig. 1 to fig. 3 are schematic structural diagrams of a swivel support:
FIG. 1 is a front view (cross-sectional view), FIG. 2 is a top view, and FIG. 3 is a schematic structural view of a Cu-PTFE metal composite layered structure;
FIG. 4 is an enlarged view of part A of FIG. 1 (a structural view of a leveling member);
fig. 5 to fig. 6 are schematic diagrams of the existing swivel spherical hinge structure:
FIG. 5 is a front view (in cross section), and FIG. 6 is a schematic view of a PTFE sheet structure in a dispersed arrangement;
in the figure:
the bearing comprises a sleeve 1, a bearing top plate 2, a circumferential reinforcing rib 21, a radial reinforcing rib 22, a groove 23, a friction layer I31, a friction layer II 32, a center disc plate 33, a peripheral sector plate 34, a bearing bottom plate 4, a flange 41, a protruding shaft 42, a leveling steel plate 51, a leveling part 52, an adjusting screw rod I521, an adjusting screw rod II522, an adjusting pipe 523, a fastening nut 524, a swivel ball hinge 6, a positioning framework 7, a friction pair 8 and a small polytetrafluoroethylene sliding plate 81.
Detailed Description
A high-bearing capacity swivel support for assisting in adjusting the posture of a bridge comprises a support top plate 2 and a support bottom plate 4 which form a swivel spherical hinge, wherein the support top plate is connected with a sleeve 1 through a connecting bolt penetrating through a bolt hole, the bottom surface of the support top plate is a convex spherical surface, the top surface of the support bottom plate is a concave spherical surface matched with the convex spherical surface, a groove is formed in the center of the convex spherical surface, and a convex shaft matched with the groove of the support top plate is arranged in the center of the concave spherical surface;
the bottom of the support base plate 4 is connected with a leveling mechanism, the leveling mechanism comprises a leveling steel plate 51 and a leveling part 52, the leveling part 52 comprises an adjusting screw I521, an adjusting screw II522, an adjusting pipe 523 and a fastening nut 524, the upper end of the adjusting screw I521 penetrates through a mounting hole of the leveling steel plate and a bolt hole of the support base plate flange 41 to be connected with the fastening nut 524 on the upper part, the lower end of the adjusting screw I521 is in threaded connection with the adjusting pipe 523 positioned on the bottom surface of the leveling steel plate, and the lower end of the adjusting pipe is in threaded connection with the adjusting screw II 522;
the surface of the convex spherical surface of the bottom surface of the support top plate 2 is provided with a friction layer I31, the surface of the concave spherical surface of the top surface of the support bottom plate 4 is provided with a friction layer II 32, the friction layer II 32 and the friction layer I form a spherical friction pair, the friction layer I is a polished layer or a chromium-plated layer or a coated stainless steel plate, and the friction layer II 32 is a Cu-PTFE metal composite material layer.
The friction layer II formed by the Cu-PTFE metal composite material layer is an integral layer or a split layer, the split layer comprises a central disk plate 33 and peripheral fan-shaped plates 34, the peripheral fan-shaped plates 34 are uniformly distributed around the central disk plate according to the circumference, and the circular ring belt formed by the peripheral fan-shaped plates 34 is one ring or multiple rings.
The circumference of a convex shaft of the concave spherical surface of the bottom plate of the support is coated with a Cu-PTFE metal composite material layer.
The top surface of the support top plate 2 is provided with a circumferential reinforcing rib 21 and a radial reinforcing rib 22.
The Cu-PTFE metal composite material layer is formed by sintering and compounding a steel plate matrix, bronze powder and PTFE.
When the support is used, the leveling mechanism is arranged in a preformed hole of the lower rotary table, the leveling of the leveling steel plate can be realized by rotating the adjusting pipe, and then concrete is poured to pour the leveling mechanism on the abutment; the reloading seat bottom plate 4 is connected and fastened through an adjusting screw rod II522 and a fastening nut 524.
Claims (4)
1. A high-bearing capacity swivel support for assisting in adjusting the posture of a bridge comprises a support top plate (2) and a support bottom plate (4) which form a swivel spherical hinge, wherein the support top plate is connected with a sleeve (1) through a connecting bolt penetrating through a bolt hole, the bottom surface of the support top plate is a convex spherical surface, the top surface of the support bottom plate is a concave spherical surface matched with the convex spherical surface, a groove is formed in the center of the convex spherical surface, and a convex shaft matched with the groove of the support top plate is arranged in the center of the concave spherical surface; the method is characterized in that:
the bottom of the support base plate (4) is connected with a leveling mechanism, the leveling mechanism comprises a leveling steel plate (51) and a leveling part (52), the leveling part (52) comprises an adjusting screw I (521), an adjusting screw II (522), an adjusting pipe (523) and a fastening nut (524), the upper end of the adjusting screw I (521) penetrates through a mounting hole of the leveling steel plate and a bolt hole of a support base plate flange (41) to be connected with the fastening nut (524) at the upper part, the lower end of the adjusting screw I (521) is in threaded connection with the adjusting pipe (523) located on the bottom surface of the leveling steel plate, and the lower end of the adjusting pipe is in threaded connection with the adjusting screw II (522);
the spherical friction pair is characterized in that a friction layer I (31) is arranged on the surface of the convex spherical surface, a friction layer II (32) is arranged on the surface of the concave spherical surface, the friction layer II and the friction layer I form a spherical friction pair, the friction layer I (31) is a polished layer or a chromium-plated layer or a coated stainless steel plate, and the friction layer II (32) is a Cu-PTFE metal composite material layer.
2. A high-bearing capacity swivel support for assisting attitude adjustment of a bridge according to claim 1, wherein: the friction layer II (32) formed by the Cu-PTFE metal composite material layer is an integral layer or a split layer, the split layer comprises a central disc plate (33) and peripheral fan-shaped plates (34), the peripheral fan-shaped plates (34) are uniformly distributed around the central disc plate (33) according to the circumference, and a circular ring belt formed by the peripheral fan-shaped plates (34) is one ring or multiple rings.
3. A high-bearing capacity swivel support for assisting attitude adjustment of a bridge according to claim 2, wherein: the circumference of a convex shaft of the concave spherical surface of the bottom plate of the support is coated with a Cu-PTFE metal composite material layer.
4. A high-bearing capacity swivel support for assisting attitude adjustment of a bridge according to claim 3, wherein: the top surface of the support top plate (2) is provided with a circumferential reinforcing rib (21) and a radial reinforcing rib (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023117614.8U CN214459733U (en) | 2020-12-22 | 2020-12-22 | High-bearing-capacity swivel support for assisting posture adjustment of bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023117614.8U CN214459733U (en) | 2020-12-22 | 2020-12-22 | High-bearing-capacity swivel support for assisting posture adjustment of bridge |
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| CN214459733U true CN214459733U (en) | 2021-10-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114182648A (en) * | 2021-12-23 | 2022-03-15 | 中铁十局集团第七工程有限公司 | Swivel construction spherical hinge support based on tension bridge |
| CN115467556A (en) * | 2022-08-17 | 2022-12-13 | 湖北工业大学 | High-precision component displacement device capable of moving in multiple directions and moving method |
-
2020
- 2020-12-22 CN CN202023117614.8U patent/CN214459733U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114182648A (en) * | 2021-12-23 | 2022-03-15 | 中铁十局集团第七工程有限公司 | Swivel construction spherical hinge support based on tension bridge |
| CN115467556A (en) * | 2022-08-17 | 2022-12-13 | 湖北工业大学 | High-precision component displacement device capable of moving in multiple directions and moving method |
| CN115467556B (en) * | 2022-08-17 | 2024-02-02 | 湖北工业大学 | High-precision multidirectional moving component displacement device and moving method |
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