Long-acting spherical support with height adjusting and sliding plate replacing functions

Abstract

The utility model belongs to a bridge support, and particularly relates to a long-acting spherical support with height adjusting and sliding plate replacing functions. Comprising an upper base plate, a sliding lining plate assembly, a spherical crown plate and a lower base plate which are stacked from top to bottom. The sliding lining plate assembly is fixed to the upper surface of the spherical crown plate, the spherical crown plate is in rotating fit with the adjacent face of the lower base plate, the upper base plate is in plane sliding fit with the adjacent face of the sliding lining plate assembly, and the adjacent face of the upper base plate and the sliding lining plate assembly is provided with a grease storage pit capable of containing silicone grease and a sealing ring capable of preventing the silicone grease from overflowing. The upper surface of the sealing ring is attached to the upper base plate, an annular groove is formed in the adjacent part, and a clamping part capable of achieving radial limiting and height adjusting with the spherical crown plate is arranged at the bottom of the sliding lining plate assembly. The problems that in the prior art, due to large abrasion of the sliding plate, a support needs to be replaced as a whole, and silicone grease consumption is large are effectively solved. The sliding lining plate assembly can be replaced independently, and the consumption of silicone grease is low.

Description

Technical Field

[0001] The utility model belongs to a bridge bearing, in particular to a long-acting ball bearing with height adjustment and slide plate replacement functions. Background Art

[0002] The spherical bearing is a new type of bridge bearing developed based on the basin-type rubber bearing. The bearing's translation is achieved by the upper bearing plate sliding on a flat slide, while rotation is achieved through the combined action of the spherical crown plate and the spherical surface of the lower bearing plate. Spherical bearings transmit force through the spherical surface, resulting in uniform force distribution, concentrated and clear reaction force, excellent rotational performance, adaptability to various turning angles, a long service life, a small planar size, and space savings. They are suitable not only for curved and wide bridges, but are also particularly well-suited for bridges with large turning angles. They eliminate the need for rubber pressure bearings, eliminating the impact of rubber hardening or aging on the bearing's rotational performance. Spherical bearings are particularly suitable for low-temperature regions.

[0003] At the same time, the service life of a spherical bearing is significantly affected by the sliding plate. During normal travel, the sliding plate of the movable bearing continuously wears. After reaching the set travel, the grease reservoir disappears due to wear, and the silicone grease is depleted, further exacerbating the wear. Simultaneously, the bearing height decreases due to foundation settlement and structural wear. Excessive wear of the sliding plate requires replacement and installation of a new bearing, which is both costly and difficult to implement.

[0004] Based on the above reasons, technical personnel in this field urgently need to develop a spherical bearing that can replace the skateboard in situ, has a better sealing structure and can flexibly adjust the height. The applicant has not found any patent literature reports that are identical or similar to the utility model in the domestic patent database. Summary of the Invention

[0005] The utility model provides a long-lasting spherical bearing with height adjustment and slide plate replacement functions, which can effectively solve the problems existing in the prior art such as rapid consumption of silicone grease and the need to replace and install a new bearing when the slide plate is severely worn.

[0006] The overall technical concept of the utility model is:

[0007] A long-lasting spherical bearing with height adjustment and slide plate replacement functions includes an upper seat plate, a sliding liner assembly, a ball crown plate, and a lower seat plate stacked from top to bottom; the sliding liner assembly is fixed to the upper surface of the ball crown plate, the adjacent surfaces of the ball crown plate and the lower seat plate are rotated, and the adjacent surfaces of the upper seat plate and the sliding liner assembly are planar sliding. The adjacent surfaces of the upper seat plate and the sliding liner assembly are provided with a grease storage pit for accommodating silicone grease and a sealing ring to prevent silicone grease from overflowing; the upper surface of the sealing ring is fitted with the upper seat plate and the adjacent part is provided with an annular groove, and the bottom of the sliding liner assembly is provided with a clamping part that can achieve radial limitation and height adjustment with the ball crown plate.

[0008] Under the premise of not affecting the rotational fit effect, the shape of the fat storage pit can be flexibly designed as needed, including but not limited to one or a combination of circle, square, triangle or groove, without departing from the essence of the present invention.

[0009] The specific technical structure of the utility model is:

[0010] The main function of the sliding liner assembly is to facilitate the sliding fit with the upper seat plate. In order to optimize its product structure to facilitate the function realization, the preferred technical implementation method is that the sliding liner assembly includes a flat slide plate whose upper surface slides with the upper seat plate, the lower part of the flat slide plate is clamped and fixed to the upper surface of the liner, the sealing ring is clamped to the upper surface of the liner outside the grease storage pit, and the bottom of the liner is provided with a clamping part that can achieve radial limitation and height adjustment with the spherical crown plate.

[0011] The main function of the clamping part is to facilitate height adjustment, which can be achieved by the following technical means without departing from the essence of the present invention: The clamping part includes a protrusion provided on the lower surface of the liner or the upper surface of the spherical crown and engaging with the adjacent surface by a stop or a snap fit.

[0012] A more preferred technical implementation method is that the protrusion and the lower part of the liner or the upper part of the spherical crown plate adopt an integrated structure, or use a stopper or a clip-fitted height adjustment pad in the surface groove of the lower surface of the liner and / or the upper surface of the spherical crown plate.

[0013] In order to facilitate the replacement of the height adjustment pad after disassembly, the preferred technical implementation method is to provide a concave cavity on the side of the height adjustment pad to facilitate its prying. In this way, the height adjustment pad can be easily pried up and replaced using tools.

[0014] Furthermore, the concave cavity is a groove, a pit or a combination thereof.

[0015] The concave cavity can adopt a variety of shapes that are easy to form. In order to facilitate the tool to pry it up, the concave cavity is not easily damaged under relatively concentrated stress. A more preferred solution is that the concave cavity adopts a groove with a trapezoidal longitudinal section.

[0016] To reduce the wear and tear of the upper seat plate caused by planar sliding, the preferred technical implementation method is to form a planar sliding pair with the lower surface of the upper seat plate. This is because the planar sliding plate and the stainless steel plate on the lower surface of the upper seat plate have a significant material difference. The planar sliding plate is usually made of polytetrafluoroethylene. Compared with the stainless steel plate, the wear of the stainless steel plate is negligible when the planar sliding plate slides relative to the stainless steel plate. This greatly improves operational stability and reduces maintenance costs.

[0017] The main purpose of opening annular grooves on the sealing ring is to form two seals outside the plane sliding pair to achieve a better sealing effect. At the same time, it has a collection effect on the silicone grease leaked on the sliding surface. In order to facilitate the manufacture of the sealing ring while meeting the sealing effect, the preferred technical implementation method is that the cross-section of the annular grooves opened on the sealing ring adopts a V-shaped, U-shaped, trapezoidal or circular shape.

[0018] The structural design of the upper seat plate of the spherical support can meet the needs of unidirectional or bidirectional sliding along the skateboard. In order to meet the needs of unidirectional sliding along the skateboard, the preferred technical implementation method is that the relatively arranged edges of the upper seat plate are fixed with baffles that enable it to slide unidirectionally along the sliding lining assembly.

[0019] The working principle of this utility model is as follows:

[0020] 1. When assembling the support, apply silicone grease to the annular groove of the sealing ring, the upper surface of the flat slide plate, and the grease storage pit;

[0021] 2. When the support slides and deforms, the silicone grease on the flat slide is collected by the annular groove of the sealing ring, which prevents the loss of silicone grease and extends the service life of the flat slide. The sealing ring stores more silicone grease and reduces the consumption of silicone grease, making the lubrication effect more lasting, thereby reducing the wear of the slide;

[0022] 3. When the displacement of the support accumulates to a certain extent, the flat slide will be worn out. At this time, the normal displacement of the support will be affected, and the support height will drop, seriously affecting the performance of the support. When the flat slide is seriously worn, the sliding liner assembly can be removed and replaced as a whole to solve the problem. The height of the clamping part can be flexibly selected according to needs;

[0023] 4. Since the slide plate adopts a replaceable design, the lifting height of the separation support is reduced, the construction is easier, and there is no need to replace the entire support.

[0024] The applicant needs to state:

[0025] In the description of the present invention, the orientations or positional relationships indicated by terms such as "upper surface", "bottom", "radial", "lower part", and "lower surface" are based on the orientations or positional relationships shown in the accompanying drawings and are only intended to simplify the description of the present invention. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0026] The technical advancements achieved by this utility model are:

[0027] 1. The utility model rationally splits the spherical crown plate of the traditional spherical bearing into two parts, namely the sliding lining assembly and the spherical crown plate, and provides a clip-on part for height adjustment at the adjacent part. Firstly, it facilitates the design, processing and assembly of parts; secondly, when a fault occurs and maintenance is required, the bearing does not need to be dismantled and replaced as a whole, which greatly reduces maintenance costs and engineering difficulty; thirdly, the lifting height of the beam body is reduced, making the maintenance and replacement of parts more convenient.

[0028] 2. The structural design of the annular groove above the sealing ring can effectively prevent the loss of silicone grease during the sliding process of the support, and at the same time it can collect the escaped silicone grease. While effectively meeting the lubrication effect, it reduces the wear of the skateboard and extends the service life of the skateboard.

[0029] 3. A clamping joint is added between the sliding liner assembly and the spherical crown plate. If a bearing becomes empty due to foundation settlement, component wear, or the bearing height needs adjustment, bridge maintenance personnel can adjust the bearing height by replacing the sliding liner assembly with a suitable thickness, so that the bearing surface and the bridge superstructure are closely aligned again, resolving the bearing emptying issue. The replaceable design of the sliding liner assembly also reduces the lifting height of the beam, making it easier to replace the sliding liner assembly and reducing the difficulty and cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings of the present utility model include:

[0031] Figure 1 It is a structural diagram of the utility model with a two-way movable function.

[0032] Figure 2 It is a structural diagram of the utility model with a one-way movable function.

[0033] Figure 3 yes Figure 1 A partial enlarged view of part A.

[0034] Figure 4 It is a structural diagram of embodiment 3 of the present utility model.

[0035] Figure 5 yes Figure 4 A partial enlarged view of part A.

[0036] Figure 6 It is a structural diagram of embodiment 4 of the present utility model.

[0037] Figure 7 yes Figure 6 A partial enlarged view of part A.

[0038] The reference numerals in the accompanying drawings are as follows:

[0039] 1. Upper seat plate; 2. Sliding liner assembly; 2A. Flat slide plate; 2B. Liner plate; 2C. Grease reservoir; 2D. Sealing ring; 3. Height adjustment pad; 3A. Concave cavity; 4. Spherical crown plate; 5. Lower seat plate; 6. Spherical slide plate. DETAILED DESCRIPTION

[0040] The accompanying drawings provide embodiments of the present invention. The embodiments of the present invention will be further described below in conjunction with the accompanying drawings, but this should not be construed as a limitation on the present invention. Any replacement of the embodiments with equivalent technical means made in accordance with the specification does not depart from the scope of protection of the present invention.

[0041] Example 1

[0042] The overall structure of this embodiment is as follows Figure 1 、 3 As shown, a long-lasting spherical bearing with height adjustment and slide replacement functions includes an upper seat plate 1, a sliding liner assembly 2, a spherical crown plate 4, and a lower seat plate 5 stacked from top to bottom; the sliding liner assembly 2 is fixed to the upper surface of the spherical crown plate 4, and the adjacent surfaces of the spherical crown plate 4 and the lower seat plate 5 are rotationally matched through the spherical slide 6. The adjacent surfaces of the upper seat plate 1 and the sliding liner assembly 2 adopt a plane sliding fit, and the adjacent surfaces of the upper seat plate 1 and the sliding liner assembly 2 are provided with a grease storage pit 2C for accommodating silicone grease and a sealing ring 2D for preventing silicone grease from overflowing; the upper surface of the sealing ring 2D is in contact with the upper seat plate 1 and the adjacent part is provided with an annular groove, and the bottom of the sliding liner assembly 2 is provided with a clamping part that can achieve radial limitation and height adjustment with the spherical crown plate 4.

[0043] The sliding liner assembly 2 includes a planar slide 2A, the upper surface of which slides in contact with the upper seat plate 1. The lower portion of the planar slide 2A is snap-fitted to the upper surface of the liner 2B. A sealing ring 2D is snap-fitted to the upper surface of the liner 2B, outside the grease reservoir 2C. The bottom of the liner 2B is provided with a snap-fit ​​portion that enables radial positioning and height adjustment with the spherical crown plate 4. The snap-fit ​​portion includes a protrusion provided on the lower surface of the liner 2B or the upper surface of the spherical crown plate 4, which engages with the adjacent surface and adopts a stopper or snap-fit ​​fit. The protrusion adopts a stopper or snap-fit ​​fit fit with the height adjustment pad 3 in the grooves on the lower surface of the liner 2B and the upper surface of the spherical crown plate 4.

[0044] A concave cavity 3A is provided on the side of the height-adjusting pad 3 to facilitate its prying.

[0045] The concave cavity 3A is a groove with a trapezoidal longitudinal section.

[0046] The fat storage pit is hemispherical in shape.

[0047] The planar slide plate 2A and the lower surface of the upper seat plate 1 form a planar sliding pair.

[0048] The cross section of the annular groove formed on the sealing ring 2D is trapezoidal.

[0049] The edges of the upper seat plate 1 that are arranged opposite to each other are fixed with blocking bars that enable the upper seat plate 1 to slide in one direction along the sliding lining assembly 2 .

[0050] This embodiment is suitable for a spherical support in which the upper seat plate 1 can move in two directions along the sliding liner assembly 2.

[0051] Example 2

[0052] The overall structure of this embodiment is as follows Figure 2 shown.

[0053] The difference between this embodiment and embodiment 1 is that:

[0054] The edges of the upper seat plate 1 that are arranged opposite to each other are fixed with blocking bars that enable the upper seat plate 1 to slide in one direction along the sliding lining assembly 2 .

[0055] This embodiment is suitable for a spherical support in which the upper seat plate 1 can move unidirectionally along the sliding liner assembly 2 .

[0056] The rest of the content is the same as in Example 1.

[0057] Example 3

[0058] The overall structure of this embodiment is as follows Figure 4 、 5 shown.

[0059] The difference between this embodiment and embodiment 1 is that:

[0060] The snap-fitting portion is a protrusion that is arranged on the lining plate 2B and is fitted with the adjacent surface by a stop or snap fit. The protrusion and the lower part of the lining plate 2B adopt an integrated structure. Since the protrusion and the lining plate 2B do not need to be separated, there is no need to set a concave cavity 3A that facilitates the protrusion to be pried.

[0061] The rest of the content is the same as in Example 1.

[0062] Example 4

[0063] The overall structure of this embodiment is as follows Figure 6 、 7 shown.

[0064] The difference between this embodiment and embodiment 1 is that:

[0065] The snap-fitting portion is a protrusion provided on the spherical crown plate 4 and engaging with the adjacent surface by means of a stop or snap fit. The protrusion and the upper portion of the spherical crown plate 4 are integrated into a structure. Since the protrusion and the spherical crown plate 4 do not need to be separated, there is no need to provide a concave cavity 3A that facilitates the protrusion to be pried.

[0066] The rest of the content is the same as in Example 1.

Claims

1. A long-lasting spherical bearing with height adjustment and slide plate replacement functions, comprising an upper seat plate (1), a sliding liner assembly (2), a spherical crown plate (4), and a lower seat plate (5) stacked from top to bottom; the sliding liner assembly (2) is fixed to the upper surface of the spherical crown plate (4), the adjacent surfaces of the spherical crown plate (4) and the lower seat plate (5) are rotationally matched, the adjacent surfaces of the upper seat plate (1) and the sliding liner assembly (2) are plane sliding matched, and the adjacent surfaces of the upper seat plate (1) and the sliding liner assembly (2) are provided with a grease storage pit (2C) for accommodating silicone grease and a sealing ring (2D) for preventing silicone grease from overflowing; characterized in that The upper surface of the sealing ring (2D) is fitted with the upper seat plate (1) and an annular groove is provided at the adjacent portion. The bottom of the sliding liner assembly (2) is provided with a clamping portion that can achieve radial limitation and height adjustment with the spherical crown plate (4).

2. The long-lasting spherical bearing with height adjustment and slide replacement functions according to claim 1 is characterized in that The sliding lining assembly (2) includes a planar slide plate (2A) whose upper surface is slidably matched with the upper seat plate (1); the lower portion of the planar slide plate (2A) is clamped and fixed to the upper surface of the lining plate (2B); a sealing ring (2D) is clamped to the upper surface of the lining plate (2B) outside the grease storage pit (2C); and a clamping portion is provided at the bottom of the lining plate (2B) for achieving radial limitation and height adjustment with the spherical crown plate (4).

3. The long-lasting spherical bearing with height adjustment and slide replacement functions according to claim 1 or 2, characterized in that The clamping portion comprises a protrusion which is arranged on the lower surface of the lining plate (2B) or the upper surface of the spherical crown plate (4) and is engaged with the adjacent surface by means of a stop or a clamping fit.

4. The long-lasting spherical bearing with height adjustment and slide replacement functions according to claim 3 is characterized in that The protrusion is integrated with the lower part of the liner (2B) or the upper part of the spherical crown plate (4), or a height adjustment pad (3) is fitted into a groove on the lower surface of the liner (2B) and / or the upper surface of the spherical crown plate (4) by means of a stop or snap fit.

5. The long-lasting spherical bearing with height adjustment and slide replacement functions according to claim 4 is characterized in that A concave cavity (3A) is provided on the side of the height-adjusting pad (3) to facilitate its prying.

6. The long-lasting spherical bearing with height adjustment and slide replacement functions according to claim 5 is characterized in that The concave cavity (3A) is a groove, a pit or a combination thereof.

7. The long-lasting spherical bearing with height adjustment and slide replacement functions according to claim 5 or 6, characterized in that The concave cavity (3A) is a groove with a trapezoidal longitudinal section.

8. The long-lasting ball bearing with height adjustment and slide replacement functions according to claim 1 is characterized in that The cross section of the annular groove on the sealing ring (2D) is V-shaped, U-shaped, trapezoidal or circular.

9. The long-lasting ball bearing with height adjustment and slide replacement functions according to claim 1 is characterized in that The edges of the upper seat plate (1) that are arranged opposite to each other are fixed with blocking bars that enable the upper seat plate (1) to slide in one direction along the sliding lining plate assembly (2).

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