Double sliding surface rotary pair for swivel support

Abstract

The utility model belongs to bridge support technical field, concretely is a kind of double sliding surface rotary pair for swivel support, including two stainless steel sheets and a sliding plate, two stainless steel sheets are respectively fixedly connected on the upper spherical surface seat plate and lower spherical surface seat plate of ball hinge, and sliding plate is located between the upper and lower two stainless steel sheets, and with the upper and lower two stainless steel sheets between can be relatively slid, the upper stainless steel sheet and the upper surface of sliding plate form a sliding surface, the lower stainless steel sheet and the lower surface of sliding plate form another sliding surface.The rotary pair of the utility model designs two sliding surfaces, when one sliding surface is " stuck ", another sliding surface can also work normally;The friction coefficient of the wear surface of stainless steel sheet and sliding plate is lower than that of single sliding surface structure.

Description

Technical Field

[0001] This utility model belongs to the field of bridge bearing technology, specifically a double sliding surface rotating pair for a rotating bearing. Background Technology

[0002] With the development of transportation, the construction of highways and railways has achieved rapid growth. When building bridges across railways, it is generally necessary to use the rotation construction method; and the rotation support is a key component, so the use of rotation supports is increasing.

[0003] In recent years, there have been several cases of "unable to rotate" during the rotation construction. The reasons may be that debris has entered the sliding surface, or there may be problems with the structure itself, or the strength of the reaction seat may be insufficient. The root cause is that the friction is too great.

[0004] Traditional slewing supports have only one sliding surface. When this sliding surface malfunctions, it will prevent the support from rotating. Utility Model Content

[0005] In view of the above-mentioned problems of traditional slewing supports having only one sliding surface, the purpose of this utility model is to provide a double sliding surface slewing pair for slewing supports.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] One structure of this utility model includes two stainless steel plates and a sliding plate. The two stainless steel plates are respectively fixed to the upper spherical seat plate and the lower spherical seat plate of the ball joint. The sliding plate is located between the upper and lower stainless steel plates and can slide relative to both of the upper and lower stainless steel plates. The upper stainless steel plate forms a sliding surface with the upper surface of the sliding plate, and the lower stainless steel plate forms another sliding surface with the lower surface of the sliding plate.

[0008] Another structure of this utility model includes a stainless steel plate and two sliding plates. The two sliding plates are respectively embedded in the upper spherical seat plate and the lower spherical seat plate of the ball joint. The stainless steel plate is located between the upper and lower sliding plates and can slide relative to both of the upper and lower sliding plates. A sliding surface is formed between the upper sliding plate and the upper surface of the stainless steel plate, and another sliding surface is formed between the lower sliding plate and the lower surface of the stainless steel plate.

[0009] Wherein: the stainless steel plate is a plurality of concentric rings, each ring being a complete ring, and adjacent rings are connected by connecting blocks.

[0010] The slide plate consists of multiple concentric rings, each ring being divided into multiple blocks. Adjacent blocks of each ring are connected by connecting plates, and the connecting plates on adjacent rings are interconnected.

[0011] Multiple sets of connecting plates are evenly distributed along the circumference of the skateboard. Each set of connecting plates is formed by connecting adjacent blocks on each concentric ring in a radial direction. That is, each concentric ring is divided into the same number of blocks, and each set of connecting plates passes through the center of the skateboard.

[0012] Both the stainless steel plate and the sliding plate are spherical panels, and the stainless steel plate and the sliding plate are in surface contact.

[0013] The contact surface between the stainless steel plate and the sliding plate is nickel-plated, chrome-plated, or polished.

[0014] The advantages and positive effects of this utility model are as follows:

[0015] The rotating pair of this invention is designed with two sliding surfaces. When one sliding surface is "locked up", the other sliding surface can still work normally. The grinding surfaces of the stainless steel plate and the sliding plate are made of a material with a low coefficient of friction, which is lower than that of a single sliding surface structure. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention installed on a ball joint according to Embodiment 1;

[0018] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the present invention installed on a ball joint according to Embodiment 2;

[0020] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0021] Figure 6 This is a three-dimensional structural diagram of the skateboard of this utility model;

[0022] Wherein: 1 is a stainless steel plate, 2 is a sliding plate, 3 is an upper spherical seat plate, 4 is a lower spherical seat plate, 5 is a connecting block, and 6 is a connecting plate. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figures 1-3and Figure 6 As shown, the double sliding surface revolute joint for the rotating support in this embodiment includes two stainless steel plates 1 and a sliding plate 2. The two stainless steel plates 1 are respectively welded to the upper spherical seat plate 3 and the lower spherical seat plate 4 of the ball joint. The sliding plate 2 is located between the upper and lower stainless steel plates 1 and can slide relative to both of the upper and lower stainless steel plates 1. The sliding plate 2 can rotate around the center of the ball joint. A sliding surface is formed between the upper stainless steel plate 1 and the upper surface of the sliding plate 2, and another sliding surface is formed between the lower stainless steel plate 1 and the lower surface of the sliding plate 2.

[0026] In this embodiment, both the stainless steel plate 1 and the sliding plate 2 are concave spherical panels, with surface contact between them. The stainless steel plate 1 consists of multiple concentric rings, each ring being a complete circle. Adjacent rings are connected by connecting blocks 5, which are made of stainless steel. The sliding plate 2 can be made of polytetrafluoroethylene (PTFE). It also consists of multiple concentric rings, each divided into multiple sections. Adjacent sections of each ring are connected by connecting plates 6, which are interconnected. The connecting plates 6 can be made of stainless steel and are bonded to the sliding plate 2 with adhesive. In this embodiment, the adhesive can be 502 glue.

[0027] Multiple sets of connecting plates 6 are evenly distributed along the circumference of the slide plate 2. Each set of connecting plates 6 is formed by radially connecting adjacent blocks on each concentric ring, meaning that each concentric ring is divided into the same number of blocks, and each set of connecting plates 6 passes through the center of the slide plate 2. In this embodiment, seven sets of connecting plates 6 are evenly distributed along the circumference of the slide plate 2, thus dividing each concentric ring into eight blocks.

[0028] In this embodiment, the stainless steel plate 1 is a mirror stainless steel plate, that is, the contact surface between the stainless steel plate 1 and the sliding plate 2 is plated with nickel, chrome, or polished.

[0029] Example 2

[0030] like Figures 4-6 As shown, the double sliding surface revolute joint for the rotating support in this embodiment includes a stainless steel plate 1 and two sliding plates 2. The two sliding plates 2 are respectively embedded in the upper spherical seat plate 3 and the lower spherical seat plate 4 of the ball joint. The stainless steel plate 1 is located between the upper and lower sliding plates 2 and can slide relative to both of the upper and lower sliding plates 2. The stainless steel plate 1 can rotate around the center of the ball joint. A sliding surface is formed between the upper sliding plate 2 and the upper surface of the stainless steel plate 1, and another sliding surface is formed between the lower sliding plate 2 and the lower surface of the stainless steel plate 1.

[0031] The stainless steel plate 1 and the sliding plate 2 in this embodiment are the same as those in Embodiment 1.

[0032] This invention features two sliding surfaces, meaning that a rotating pair has two sliding surfaces. Even if one sliding surface is "jammed," the other sliding surface can still function normally. Furthermore, the mating surfaces are composed of materials with a low coefficient of friction (such as mirror-finish stainless steel and polytetrafluoroethylene), with a coefficient of friction ≤0.03, which is lower than that of a single sliding surface structure.

Claims

1. A double-sliding-surface revolute joint for a rotating support, characterized in that: It includes two stainless steel plates (1) and a sliding plate (2). The two stainless steel plates (1) are respectively fixed to the upper spherical seat plate (3) and the lower spherical seat plate (4) of the ball joint. The sliding plate (2) is located between the upper and lower stainless steel plates (1) and can slide relative to both of the upper and lower stainless steel plates (1). A sliding surface is formed between the upper stainless steel plate (1) and the upper surface of the sliding plate (2), and another sliding surface is formed between the lower stainless steel plate (1) and the lower surface of the sliding plate (2).

2. A double-sliding-surface revolute joint for a rotating support, characterized in that: It includes a stainless steel plate (1) and two sliding plates (2). The two sliding plates (2) are respectively embedded in the upper spherical seat plate (3) and the lower spherical seat plate (4) of the ball joint. The stainless steel plate (1) is located between the upper and lower sliding plates (2) and can slide relative to both of the upper and lower sliding plates (2). The upper sliding plate (2) forms a sliding surface with the upper surface of the stainless steel plate (1), and the lower sliding plate (2) forms another sliding surface with the lower surface of the stainless steel plate (1).

3. The double sliding surface revolute joint for a rotating support according to claim 1 or 2, characterized in that: The stainless steel plate (1) consists of multiple concentric rings, each ring being a complete ring, and adjacent rings are connected by connecting blocks (5).

4. The double sliding surface revolute joint for a rotating support according to claim 1 or 2, characterized in that: The slide plate (2) consists of multiple concentric rings, each ring is divided into multiple blocks, and adjacent blocks of each ring are connected by connecting plates (6). The connecting plates (6) on adjacent rings are connected to each other.

5. The double sliding surface revolute joint for a rotating support according to claim 4, characterized in that: Multiple sets of connecting plates (6) are evenly distributed along the circumference of the slide plate (2). Each set of connecting plates (6) is formed by connecting the connecting plates (6) between adjacent blocks on each concentric ring in a radial direction. That is, each concentric ring is divided into the same number of blocks, and each set of connecting plates (6) passes through the center of the slide plate (2).

6. The double sliding surface revolute joint for a rotating support according to claim 1 or 2, characterized in that: Both the stainless steel plate (1) and the sliding plate (2) are spherical panels, and the stainless steel plate (1) and the sliding plate (2) are in surface contact.

7. The double sliding surface revolute joint for a rotating support according to claim 1 or 2, characterized in that: The contact surfaces of the stainless steel plate (1) and the sliding plate (2) are plated with nickel, chrome, or polished.

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