Novel damping spherical crown type support

Abstract

The utility model discloses a novel damping spherical crown type support which comprises a support unit and a dustproof unit, the support unit comprises an upper support and a lower support, a connecting seat is fixed to the top of the lower support, guide rods are fixed to the four corners of the bottom of the upper support, guide cylinders are fixed to the four corners of the top of the lower support, and the guide rods are matched with the corresponding guide cylinders in a sliding mode. The damping device comprises a rubber damping plate fixed in a connecting seat, the top of the rubber damping plate is an arc-shaped surface, and a spherical polyfluortetraethylene plate is placed in the arc-shaped surface of the rubber damping plate. When an upper support is installed on a lower support, the upper support extrudes a piston rod, the piston rod is extruded to drive a piston to move downwards, air in a first round hole is extruded into an annular cavity, air in the annular cavity is increased to extrude an annular rubber sheet, the annular rubber sheet is extruded to expand into an annular plate, and the sealing performance between the annular plate and a disc is improved; dust is prevented from falling among the rubber damping plate, the spherical polytetrafluoroethylene plate and the spherical crown lining plate, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of spherical crown bearing technology, and in particular to a novel shock-absorbing spherical crown bearing. Background Technology

[0002] Vibration-damping spherical crown bearings are a type of vibration-damping bearing used in bridge structures. They are mainly used to absorb the vibrations and deformations experienced by the bridge structure, thereby improving the comfort performance and service life of the bridge while ensuring structural safety.

[0003] Publication No. CN 210946468 U discloses a novel damping spherical bearing, including an upper support plate, a lower support plate, and a spherical crown liner disposed between the upper support plate and the lower support plate. A rubber damping plate is disposed between the spherical crown liner and the lower support plate. The concave and convex spherical surfaces of the rubber damping plate and the spherical crown liner are matched with each other. A planar polytetrafluoroethylene plate is disposed between the spherical crown liner and the upper support plate. A spherical polytetrafluoroethylene plate is disposed at the lower end of the spherical crown liner. A layered steel plate is disposed inside the rubber damping plate.

[0004] The novel damping spherical bearing in the prior art uses a structure with matching concave and convex spherical surfaces between the spherical crown liner and the rubber damping plate, which increases the rotation angle and damping effect. It also uses materials such as flat polytetrafluoroethylene (PTFE) plates and spherical PTFE plates to reduce the amount of steel plates used and save materials. However, the complex traffic environment of bridges means that dust can easily fall between the spherical PTFE plates and the rubber damping plate, as well as between the spherical crown liner and the spherical PTFE plates, which can easily cause wear on the contact surfaces and affect their service life. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems of the above-mentioned novel shock-absorbing spherical crown bearing, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a novel shock-absorbing spherical crown bearing, which is used to solve the problems of complex bridge traffic environment, dust easily falling between the spherical polytetrafluoroethylene plate and the rubber shock-absorbing plate, as well as between the spherical crown liner and the spherical polytetrafluoroethylene plate, which easily leads to wear on the contact surfaces between them and affects their service life.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a novel shock-absorbing spherical crown bearing, comprising:

[0009] The support unit includes an upper support and a lower support. A connecting seat is fixed to the top of the lower support. Guide rods are fixed to the four bottom corners of the upper support. Guide cylinders are fixed to the four top corners of the lower support. The guide rods slide and fit into the corresponding guide cylinders.

[0010] The dustproof unit includes a rubber damping plate fixed inside the connecting seat, with the top of the rubber damping plate having an arc-shaped surface. A spherical polytetrafluoroethylene (PTFE) plate is placed inside the arc-shaped surface of the rubber damping plate, and a spherical crown liner is placed inside the spherical PTFE plate. A disc is fixed to the top of the spherical crown liner, and a storage groove is opened on the top of the disc. A flat PTFE plate is placed in the storage groove. The upper support and the flat PTFE plate abut against each other. The connecting seat is provided with a sealing component to prevent dust from falling between the rubber damping plate, the spherical PTFE plate, and the spherical crown liner.

[0011] As a preferred embodiment of the novel shock-absorbing spherical crown bearing of this utility model, the sealing assembly includes an annular plate fixed to the top of the connecting seat, an annular groove is provided on the outer side of the disc, an annular cavity is provided on the inner wall of the annular plate, and an annular rubber sheet is fixed in the annular cavity.

[0012] As a preferred embodiment of the novel shock-absorbing spherical crown bearing of this utility model, the annular plate is provided with a plurality of circular holes I, which are connected to the annular cavity; the annular plate is also provided with a plurality of circular holes II, which are connected to the circular holes I.

[0013] As a preferred embodiment of the novel shock-absorbing spherical crown type support described in this utility model, a piston is slidably connected inside the first circular hole, and a piston rod is fixed to the top of the piston. The piston rod passes through the annular plate and slides inside the annular plate. When the piston moves down, it squeezes the air inside the first circular hole into the annular cavity, and the annular rubber sheet in the annular cavity inflates and expands to block the annular groove.

[0014] As a preferred embodiment of the novel shock-absorbing spherical crown type support described in this utility model, a pressure plate is slidably connected inside the second circular hole, a connecting rod is fixed to the top of the pressure plate, and the top of the connecting rod is fixed to the bottom of the piston, and multiple through holes are opened inside the pressure plate.

[0015] As a preferred embodiment of the novel shock-absorbing spherical crown bearing described in this utility model, an elastic element is provided inside the second circular hole, with one end of the elastic element abutting against the pressure plate and the other end of the elastic element abutting against the inner wall of the second circular hole.

[0016] The beneficial effects of this utility model are as follows: When the upper support is installed on the lower support, the upper support squeezes the piston rod. After being squeezed, the piston rod moves the piston downward, thereby squeezing the air in the circular hole into the annular cavity. The increase in air in the annular cavity will squeeze the annular rubber sheet. After being squeezed, the annular rubber sheet expands into the annular groove, thereby improving the sealing between the annular plate and the disc, preventing dust from falling between the rubber damping plate, the spherical polytetrafluoroethylene plate, and the spherical crown liner, and extending their service life. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a structural schematic diagram of a novel shock-absorbing spherical crown bearing according to this utility model.

[0019] Figure 2 This is a schematic diagram showing the disassembled structure of a novel shock-absorbing spherical crown bearing according to this utility model.

[0020] Figure 3 A schematic diagram of the structure of the spherical crown liner and the disc provided by this utility model.

[0021] Figure 4 This is a cross-sectional structural diagram of a novel shock-absorbing spherical crown bearing according to this utility model.

[0022] Figure Descriptions: 100, Support Unit; 101, Upper Support; 102, Lower Support; 103, Connecting Seat; 104, Guide Cylinder; 105, Guide Rod; 200, Dustproof Unit; 201, Rubber Shock Absorber Plate; 202, Spherical PTFE Plate; 203, Spherical Crown Liner Plate; 204, Disc; 205, Storage Groove; 206, Flat PTFE Plate; 207, Sealing Assembly; 2071, Annular Plate; 2072, Annular Groove; 2073, Annular Cavity; 2074, Annular Rubber Sheet; 208, Hole One; 209, Piston; 210, Piston Rod; 211, Hole Two; 212, Pressure Plate; 213, Connecting Rod; 214, Elastic Element; 215, Through Hole. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Reference Figures 1-4 As an embodiment of the present invention, a novel shock-absorbing spherical crown type support is provided, which includes: a support unit 100 and a dustproof unit 200;

[0028] The support unit 100 includes an upper support 101 and a lower support 102. A connecting seat 103 is fixed to the top of the lower support 102. Guide rods 105 are fixed to the four bottom corners of the upper support 101. Guide cylinders 104 are fixed to the four top corners of the lower support 102. The guide rods 105 slide in the corresponding guide cylinders 104.

[0029] The dustproof unit 200 includes a rubber damping plate 201 fixed inside the connecting seat 103, with the top of the rubber damping plate 201 having an arc-shaped surface. A spherical polytetrafluoroethylene plate 202 is placed inside the arc-shaped surface of the rubber damping plate 201, and a spherical crown liner 203 is placed inside the spherical polytetrafluoroethylene plate 202. A disc 204 is fixed to the top of the spherical crown liner 203, and a storage groove 205 is opened on the top of the disc 204. A flat polytetrafluoroethylene plate 206 is placed inside the storage groove 205. The upper support 101 and the flat polytetrafluoroethylene plate 206 abut against each other. A sealing component 207 is provided on the connecting seat 103 to prevent dust from falling between the rubber damping plate 201, the spherical polytetrafluoroethylene plate 202, and the spherical crown liner 203.

[0030] In addition, the sealing assembly 207 includes an annular plate 2071 fixed to the top of the connecting seat 103, an annular groove 2072 is formed on the outer side of the disc 204, an annular cavity 2073 is formed on the inner wall of the annular plate 2071, and an annular rubber sheet 2074 is fixed in the annular cavity 2073. A plurality of first holes 208 are formed in the annular plate 2071, and the first holes 208 are connected to the annular cavity 2073. A plurality of second holes 21 are also formed in the annular plate 2071. 1. The second circular hole 211 and the first circular hole 208 are connected. A piston 209 is slidably connected in the first circular hole 208. A piston rod 210 is fixed on the top of the piston 209. The piston rod 210 passes through the annular plate 2071 and slides in the annular plate 2071. When the piston 209 moves down, it squeezes the air in the first circular hole 208 into the annular cavity 2073. The annular rubber sheet 2074 in the annular cavity 2073 is inflated and expands, blocking the annular groove 2072.

[0031] In use, the spherical PTFE plate 202 is placed inside the rubber damping plate 201, then the spherical crown liner 203 is placed inside the spherical PTFE plate 202, and then the flat PTFE plate 206 is placed inside the receiving groove 205. Next, the guide rod 105 at the bottom of the upper support 101 is aligned with the guide cylinder 104, and the upper support 101 is lowered so that the guide rod 105 is embedded in the guide cylinder 104. Then, the upper support 101 is moved downwards, causing it to press against the piston rod 210. When compressed, the piston 209 moves downward. As the piston 209 moves downward, it compresses the air in the circular hole 208 into the annular cavity 2073. The increased air in the annular cavity 2073 compresses the annular rubber sheet 2074. After being compressed, the annular rubber sheet 2074 expands into the annular groove 2072, thereby improving the sealing between the annular plate 2071 and the disc 204. This prevents dust from falling between the rubber damping plate 201, the spherical polytetrafluoroethylene plate 202, and the spherical crown liner 203, thus extending their service life.

[0032] In addition, a pressure plate 212 is slidably connected inside the second round hole 211. A connecting rod 213 is fixed to the top of the pressure plate 212, and the top of the connecting rod 213 is fixed to the bottom of the piston 209. Multiple through holes 215 are opened inside the pressure plate 212. An elastic element 214 is provided inside the second round hole 211, and one end of the elastic element 214 abuts against the pressure plate 212, while the other end of the elastic element 214 abuts against the inner wall of the second round hole 211.

[0033] It should be noted that the elastic element 214 can use a spring or other device, and in the normal state, the piston 209 is located at the top of the first round hole 208, the pressure plate 212 is located at the top of the second round hole 211, and the annular rubber sheet 2074 is located in the annular cavity 2073.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel shock-absorbing spherical crown bearing, characterized in that, include: The support unit (100) includes an upper support (101) and a lower support (102). A connecting seat (103) is fixed to the top of the lower support (102). Guide rods (105) are fixed to the four corners of the bottom of the upper support (101). Guide cylinders (104) are fixed to the four corners of the top of the lower support (102). The guide rods (105) slide in the corresponding guide cylinders (104). A dustproof unit (200) includes a rubber damping plate (201) fixed inside a connecting seat (103), the top of which is arc-shaped. A spherical polytetrafluoroethylene plate (202) is placed inside the arc-shaped surface of the rubber damping plate (201), and a spherical crown liner (203) is placed inside the spherical polytetrafluoroethylene plate (202). A disc (204) is fixed to the top of the spherical crown liner (203). The top of the plate (204) is provided with a storage groove (205), and a flat polytetrafluoroethylene plate (206) is placed in the storage groove (205). The upper support (101) and the flat polytetrafluoroethylene plate (206) abut against each other. The connecting seat (103) is provided with a sealing component (207) to prevent dust from falling into the rubber shock-absorbing plate (201), the spherical polytetrafluoroethylene plate (202), and the spherical crown liner (203).

2. The novel shock-absorbing spherical crown bearing according to claim 1, characterized in that: The sealing assembly (207) includes an annular plate (2071) fixed to the top of the connecting seat (103), an annular groove (2072) is provided on the outer side of the disc (204), an annular cavity (2073) is provided on the inner wall of the annular plate (2071), and an annular rubber sheet (2074) is fixed in the annular cavity (2073).

3. A novel shock-absorbing spherical crown bearing according to claim 2, characterized in that: The annular plate (2071) has multiple circular holes (208) in it, and the circular holes (208) are connected to the annular cavity (2073). The annular plate (2071) also has multiple circular holes (211) in it, and the circular holes (211) are connected to the circular holes (208).

4. A novel shock-absorbing spherical crown bearing according to claim 3, characterized in that: A piston (209) is slidably connected inside the first circular hole (208), and a piston rod (210) is fixed to the top of the piston (209). The piston rod (210) passes through the annular plate (2071) and slides inside the annular plate (2071). When the piston (209) moves down, it squeezes the air in the first circular hole (208) into the annular cavity (2073). The annular rubber sheet (2074) in the annular cavity (2073) is inflated and expands, blocking the annular groove (2072).

5. A novel shock-absorbing spherical crown bearing according to claim 3, characterized in that: A pressure plate (212) is slidably connected inside the second circular hole (211). A connecting rod (213) is fixed to the top of the pressure plate (212), and the top of the connecting rod (213) is fixed to the bottom of the piston (209). Multiple through holes (215) are opened inside the pressure plate (212).

6. A novel shock-absorbing spherical crown bearing according to claim 3, characterized in that: An elastic element (214) is provided inside the second round hole (211), and one end of the elastic element (214) abuts against the pressure plate (212), while the other end of the elastic element (214) abuts against the inner wall of the second round hole (211).

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