A gapless and durable wind-resistant ball-type bearing

Abstract

The present invention discloses a gapless durable wind-resistant ball-type bearing, which is located between a main pier (14) and a main beam (15). An embedded steel plate (12) is embedded in the main pier (14), a lower bearing plate (3) is welded on the embedded steel plate (12), a flat stainless steel plate (4) is laid on the lower bearing plate (3), the flat stainless steel plate (4) and the lower bearing plate (3) are fixed by anchor bolts (11), a first piston (8) is arranged in the middle of the lower bearing plate (3), a second flat wear-resistant plate (7) is arranged between the first piston (8) and the lower bearing plate (3), and a matching second piston (9) is arranged on the first piston (8). The bearing overcomes the disadvantage of the prior art that the bearing fails after the wear-resistant plate is worn to a certain extent, and has the advantages of greatly reducing the maintenance cost and the cost of frequently replacing the bearing.

Description

Technical Field

[0001] The invention relates to the technical field of lateral support of a main beam of a bridge structure, and more specifically to a gapless, durable, wind-resistant ball-type bearing. Background Art

[0002] At present, the transverse wind-resistant bearings used in bridge structures always have gaps due to installation requirements and the fact that the structure itself is fully rigid. In daily use, dust can easily enter the bearings. Granular dust causes the wear of the plane wear-resistant plate and the spherical wear-resistant plate of the bearing to increase. After the wear increases, the gap further expands. After the gap expands, more dust will enter the gap, which further increases the wear, thus forming a vicious circle. After the wear-resistant plate is worn to a certain extent, the bearing fails and needs to be replaced. Frequent replacement of bearings is not only expensive, but during the replacement of bearings, the bridge often needs to restrict vehicle traffic, causing traffic inconvenience. If the bearing has a thicker wear-resistant plate and a relatively thin ball crown, when the wear-resistant plate is severely worn, the gap is large enough and the ball crown will fall off, causing serious accidents such as casualties under the bridge. Therefore, in actual use, transverse wind-resistant bearings often need to be inspected and cleaned regularly and frequently, and operation and maintenance are relatively cumbersome.

[0003] Therefore, a kind of device is badly needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and to provide a gapless, durable, wind-resistant ball-type support.

[0005] The object of the present invention is implemented by the following technical scheme: a gapless durable wind-resistant ball-type bearing, which is located between the main pier and the main beam, and includes an upper bearing plate, a ball crown, a lower bearing plate, a flat stainless steel plate, a first flat wear-resistant plate, a spherical wear-resistant plate, a second flat wear-resistant plate, a first piston, a second piston, a spring, an anchor bolt, an embedded steel plate and an upper connecting bolt;

[0006] An embedded steel plate is embedded in the main pier, a lower support plate is welded on the embedded steel plate, a flat stainless steel plate is laid on the lower support plate, the flat stainless steel plate is fixed to the lower support plate by anchor bolts, a first piston is arranged in the middle of the lower support plate, a second flat wear-resistant plate is arranged between the first piston and the lower support plate, a matching second piston is arranged on the first piston, a spring is arranged between the first piston and the second piston, and the spring is located in the cavity on the inner surface of the first piston, and a spherical wear-resistant plate is arranged along the inner surface of the second piston;

[0007] The main beam is fixed to the upper support plate by upper connecting bolts, a spherical cap is arranged on the upper support plate, and a first flat wear-resistant plate is arranged between the spherical cap and the upper support plate;

[0008] The second piston is arranged opposite to the spherical crown, and the curvature of the inner surface of the second piston matches the curvature of the outer surface of the spherical crown.

[0009] In the above technical solution: the spring is made of multiple groups of cylindrical springs and is evenly distributed in the first piston cavity.

[0010] In the above technical solution: the spring is a single spring and is arranged in the first piston cavity.

[0011] The present invention has the following advantages: 1. The present invention can instantly eliminate the gap of the lateral wind-resistant bearing during use, and is completely sealed, which can effectively prevent dust from entering the gap of the bearing, thereby well protecting the bearing wear-resistant elements from dust pollution, improving the wear resistance and durability of the wear-resistant elements, and further improving the durability of the lateral wind-resistant bearing, avoiding frequent inspection, cleaning, maintenance and replacement.

[0012] 2. Because the maintenance cost of the present invention is greatly reduced, the cost of frequent replacement of bearings is also reduced, and the adverse effect on vehicle traffic caused by replacement of bearings is avoided.

[0013] 3. The preload force formed between the second piston and the ball crown in the present invention overcomes the gravity of the ball crown and other components, prevents the components from falling, ensures the safety and reliability of the product, and avoids serious accidents such as casualties under the bridge caused by the falling of the support ball crown components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the existing gapless durable wind-resistant ball-type bearing.

[0015] Figure 2 It is a structural schematic diagram of the present invention.

[0016] Figure 3 This is an enlarged view of the connection relationship between the first piston and the second piston.

[0017] In the figure: upper bearing plate 1, spherical crown 2, lower bearing plate 3, flat stainless steel plate 4, first flat wear-resistant plate 5, spherical wear-resistant plate 6, second flat wear-resistant plate 7, first piston 8, second piston 9, spring 10, anchor bolt 11, embedded steel plate 12, upper connecting bolt 13, main pier 14, main beam 15. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-3 As shown: a gapless durable wind-resistant spherical bearing, which is located between the main pier 14 and the main beam 15, and includes an upper bearing plate 1, a spherical crown 2, a lower bearing plate 3, a flat stainless steel plate 4, a first flat wear-resistant plate 5, a spherical wear-resistant plate 6, a second flat wear-resistant plate 7, a first piston 8, a second piston 9, a spring 10, an anchor bolt 11, an embedded steel plate 12 and an upper connecting bolt 13;

[0020] An embedded steel plate 12 is embedded in the main pier 14, a lower support plate 3 is welded on the embedded steel plate 12, a flat stainless steel plate 4 is laid on the lower support plate 3, the flat stainless steel plate 4 and the lower support plate 3 are fixed by anchor bolts 11, a first piston 8 is arranged in the middle of the lower support plate 3, a second flat wear-resistant plate 7 is arranged between the first piston 8 and the lower support plate 3, a matching second piston 9 is arranged on the first piston 8, a spring 10 is arranged between the first piston 8 and the second piston 9, and the spring 10 is located in the cavity on the inner surface of the first piston 8, and a spherical wear-resistant plate 6 is arranged along the inner surface of the second piston 9;

[0021] The main beam 15 is fixed to the upper support plate 1 by upper connecting bolts 13, a spherical cap 2 is arranged on the upper support plate 1, and a first flat wear-resistant plate 5 is arranged between the spherical cap 2 and the upper support plate 1;

[0022] The second piston 9 is arranged opposite to the spherical crown 2 , and the curvature of the inner surface of the second piston 9 matches the curvature of the outer surface of the spherical crown 2 .

[0023] The spring 10 can be a group of high elastic springs or multiple groups of cylindrical springs. Both are acceptable without obvious differences and are evenly distributed in the cavity of the second piston 9. When the support is installed, the first piston 8 is pressed hard on the second piston 9. At this time, the spring is in a compressed state. After all the components of the support are installed, there is an installation gap between the ball crown 2, the first piston 8, the first plane wear-resistant plate 5, the spherical wear-resistant plate 6, and the second piston 9. At this time, the first piston 8 is released, the spring 10 automatically rebounds and stretches, and the various components of the support are pressed tightly against each other, and the installation gap can be automatically eliminated.

[0024] The present invention also includes the following specific assembly process: ①, when pouring the main pier concrete, the anchor bolts 11 and the lower support plate 3 are pre-buried in the main pier, and then the lower support plate 3 and the flat stainless steel plate 4 are fixed at the position of the main pier 14 with the pre-buried anchor bolts 11.

[0025] ②. Fix the whole set of supports (upper support plate 1, spherical crown 2, first plane wear-resistant plate 5 and spherical wear-resistant plate 6) at the position of main beam 15 with upper connecting bolts 13, and then cast main pier 14 and main beam 15 respectively, so that the support components will naturally cast main pier 14 and main beam 15 together, and then press the second plane wear-resistant plate 7 and the second piston 9 hard on the flat stainless steel plate 4, one end of the spring 10 is welded in the second piston 9, and the first piston 8 is pressed hard on the second piston 9. The spring 10 is in a high-pressure compression state. At this time, the first piston 8 is clamped on the spherical wear-resistant plate 6, and all components of the support are in place. Release the second piston 9 that is tightly pressed on the first piston 8, and the spring bounces up and stretches, making the components of the support close to each other, and the gaps between the components can be eliminated.

[0026] The working principle of the present invention is as follows: one or more groups of springs 10 are added to the traditional transverse wind-resistant bearing as elastic elements. After the bearing is installed, the spring 10 is released, and the spring 10 elastically stretches to make the components of the bearing close together, and the gaps between the components are eliminated, thereby forming a gapless bearing, which can effectively prevent dust from entering the bearing. In this way, the wear-resistant elements of the bearing are well protected from dust pollution, the wear resistance and durability of the wear-resistant elements are improved, and the durability of the transverse wind-resistant bearing is further improved, and frequent inspection, cleaning, repair and replacement are avoided. The maintenance cost is greatly reduced, and the cost of frequent replacement of the bearing is also reduced, while the adverse effects of the replacement of the bearing on the passage of vehicles are also avoided. At the same time, the preload force of the elastic element overcomes the gravity of the ball crown and other components, preventing the components from falling, ensuring the safety and reliability of the product, and avoiding the occurrence of serious accidents such as casualties under the bridge due to the falling of the ball crown components of the bearing.

[0027] The parts not described in detail above are all prior art.

Claims

1. A gapless and durable wind-resistant ball-type bearing, located between the main pier (14) and the main beam (15), characterized in that: It comprises an upper support plate (1), a spherical crown (2), a lower support plate (3), a flat stainless steel plate (4), a first flat wear-resistant plate (5), a spherical wear-resistant plate (6), a second flat wear-resistant plate (7), a first piston (8), a second piston (9), a spring (10), an anchor bolt (11), an embedded steel plate (12) and an upper connecting bolt (13); An embedded steel plate (12) is embedded in the main pier (14), a lower support plate (3) is welded on the embedded steel plate (12), a flat stainless steel plate (4) is laid on the lower support plate (3), the flat stainless steel plate (4) and the lower support plate (3) are fixed by anchor bolts (11), a first piston (8) is arranged in the middle of the lower support plate (3), a second flat wear-resistant plate (7) is arranged between the first piston (8) and the lower support plate (3), a matching second piston (9) is arranged on the first piston (8), a spring (10) is arranged between the first piston (8) and the second piston (9), and the spring (10) is located in the cavity on the inner surface of the first piston (8), and a spherical wear-resistant plate (6) is arranged along the inner surface of the second piston (9); The main beam (15) and the upper support plate (1) are fixed by upper connecting bolts (13); a spherical cap (2) is provided on the upper support plate (1); and a first flat wear-resistant plate (5) is provided between the spherical cap (2) and the upper support plate (1); The second piston (9) is arranged opposite to the spherical crown (2), and the curvature of the inner surface of the second piston (9) matches the curvature of the outer surface of the spherical crown (2).

2. The gapless durable wind-resistant ball-type bearing according to claim 1 is characterized in that: The spring (10) is made of multiple groups of columnar springs and is evenly distributed in the cavity of the first piston (8).

3. The gapless durable wind-resistant ball-type bearing according to claim 1 is characterized in that: The spring (10) is a single spring and is arranged in the cavity of the first piston (8).

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