CN216519383U

CN216519383U - Damping bearing

Info

Publication number: CN216519383U
Application number: CN202122075993.7U
Authority: CN
Inventors: 许亦
Original assignee: Changzhou Daohong Precision Bearing Co ltd
Current assignee: Changzhou Daohong Precision Bearing Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-05-13
Anticipated expiration: 2031-08-30

Abstract

The utility model relates to the technical field of bearings, in particular to a damping bearing which is provided with a bearing shell and a support shaft, wherein the bearing shell is fixedly connected with an upper connecting plate, the support shaft is fixedly connected with a lower connecting plate, an outer ring, balls and a bearing cap are arranged between the bearing shell and the support shaft, the outer ring, the balls, the bearing cap and the bearing shell are surrounded with an inner cavity, damping liquid is filled in the inner cavity, the bearing shell is provided with an adjusting hole communicated with the inner cavity, and the adjusting hole is connected with an adjusting screw in a sealing mode. The utility model has simple structure and good sealing performance, the outer ring, the ball, the bearing cap and the bearing shell are surrounded with an inner cavity, the inner cavity is filled with damping liquid, the pressure of the damping liquid in the inner cavity is adjusted by matching with the adjusting hole and the adjusting screw, the damping ratio of the supporting position is increased by the damping liquid, and the supporting performance of the structure is enhanced.

Description

Damping bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a damping bearing.

Background

Damping refers to the physical phenomenon of a swaying or vibrating system being retarded so that energy is dissipated over time. With the rapid development of modern industrial technology, the dynamic response of the acceleration, the speed and the displacement on the engineering structure needs to be reasonably controlled under the action of earthquake or wind, so that the safety and the normal use environment condition of the structure and personnel, instruments and equipment in the structure are ensured, and the introduction of damping at the support position is a feasible control method.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a damping bearing.

The technical scheme for realizing the purpose of the utility model is as follows: the utility model provides a damping bearing, has bearing housing, back shaft, bearing housing fixedly connected with upper junction plate, connecting plate under the back shaft fixedly connected with, bearing housing with be equipped with outer lane, ball, bearing cap between the back shaft, outer lane, ball, bearing cap and bearing housing enclose and are equipped with the inner chamber, the inner chamber is filled there is damping liquid, bearing housing is equipped with the intercommunication the regulation hole of inner chamber, regulation hole sealing connection has adjusting screw.

According to the technical scheme, the diameter of one end, close to the bearing shell, of the support shaft is reduced in a stepped mode, and the balls are evenly distributed on the end, with the reduced diameter, of the support shaft in a circumferential mode.

According to the technical scheme, the bearing shell is fixedly connected with the outer ring fixing plate through the set screw.

According to the technical scheme, the supporting shaft is hermetically sleeved with the dust ring, the dust ring is located between the supporting shaft and the outer ring fixing plate, and the lower end face of the outer ring fixing plate is flush with the lower end face of the dust ring.

According to the technical scheme, the supporting shaft is sleeved with the retaining plate for retaining the outer ring fixing plate and the dust ring, and the retaining plate is fixed on the lower end faces of the outer ring fixing plate and the dust ring through the set screws.

According to the technical scheme, the damping fluid is silicone oil.

According to the technical scheme, the upper connecting plate is sleeved on the bearing shell, and a transverse screw is arranged between the upper connecting plate and the bearing shell.

According to the technical scheme, the lower connecting plate is in threaded connection with the supporting shaft.

After the technical scheme is adopted, the utility model has the following positive effects:

the utility model has simple structure and good sealing performance, the outer ring, the ball, the bearing cap and the bearing shell are surrounded with an inner cavity, the inner cavity is filled with damping liquid, the pressure of the damping liquid in the inner cavity is adjusted by matching with the adjusting hole and the adjusting screw, the damping ratio of the supporting position is increased by the damping liquid, and the supporting performance of the structure is enhanced.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: the bearing comprises a bearing shell 1, a support shaft 2, an upper connecting plate 11, a lower connecting plate 21, an outer ring 3, balls 4, a bearing cap 5, an inner cavity 12, damping liquid 6, an adjusting hole 13, an adjusting screw 7, a set screw 16, an outer ring fixing plate 14, a dust ring 22, a retaining plate 15 and a transverse screw 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a damping bearing, which is provided with a bearing shell 1 and a support shaft 2, wherein the bearing shell 1 is fixedly connected with an upper connecting plate 11, the support shaft 2 is fixedly connected with a lower connecting plate 21, an outer ring 3, a ball 4 and a bearing cap 5 are arranged between the bearing shell 1 and the support shaft 2, the outer ring 3, the ball 4, the bearing cap 5 and the bearing shell 1 are enclosed to form an inner cavity 12, the inner cavity 12 is filled with damping liquid 6, the bearing shell 1 is provided with an adjusting hole 13 communicated with the inner cavity 12, and the adjusting hole 13 is hermetically connected with an adjusting screw 7. The upper connecting plate 11 may be, but not limited to, connected to an engineering structural component to be supported by using bolt holes, bolts, etc., the lower connecting plate 21 is supported by grounding, and the materials of the upper connecting plate 11 and the lower connecting plate 21 may be selected according to the requirement, which is not limited herein. The axes of the outer ring 3, the balls 4, the bearing cap 5 and the supporting shaft 2 are the same, and one of the left side and the right side of the section of each ball 4 is a vertical surface. One side is an arc-shaped surface, and the arc-shaped surface and the vertical surface are respectively tightly attached to the inner surface of the outer ring 3 and the outer surface of the support shaft 2. The bearing cap 5 is located on the upper side of the ball 4 and the support shaft 2, the damping liquid 6 filled in the damping liquid inner cavity 12 is used for generating a required damping effect, and the adjusting screw 7 can be screwed up and down or loosened to finely adjust the pressure of the damping liquid 6 in the inner cavity 12, so that different damping requirements on the damping liquid 6 are met.

The diameter of one end of the support shaft 2 close to the bearing shell 1 is reduced in a step mode, and the balls 4 are evenly distributed on the end, with the diameter reduced in the step mode, of the support shaft 2. That is, the diameter of the section of the support shaft 2 attached with the balls 4 is small, and the diameter of the other sections is large, so that the balls 4 can be arranged between the bearing cap 5 and the support shaft 2 by using only one bearing cap 5.

The bearing housing 1 is fixedly connected with an outer ring fixing plate 14 through a set screw 16, and the outer ring fixing plate 14 is mainly used for fixing the outer ring 3. The supporting shaft 2 is sleeved with a dustproof ring 22 in a sealing mode, the dustproof ring 22 is located between the supporting shaft 2 and the outer ring fixing plate 14, and the lower end face of the outer ring fixing plate 14 is flush with the lower end face of the dustproof ring 22. The dust ring 22 is made of DHS-80,

the support shaft 2 is fitted with a holding plate 15 holding the outer ring fixing plate 14 and the dust ring 22, and the holding plate 15 is fixed to the lower end faces of the outer ring fixing plate 14 and the dust ring 22 by a set screw 16. The set screw 16 may be screwed into the bearing housing 1 after penetrating the outer ring fixing plate 14, and the bearing housing 1 and the outer ring fixing plate 14 are pre-bored with respect to the set screw 16.

The damping fluid 6 is silicone oil.

The upper connecting plate 11 is sleeved on the bearing shell 1, and a transverse screw 8 is arranged between the upper connecting plate 11 and the bearing shell 1. The cross-section of the upper connecting plate 11 is stool-shaped when viewed from the appearance, and when the upper connecting plate is installed, the upper connecting plate is firstly sleeved on the bearing shell 1 and then fixed by using the transverse screw 8.

The lower connecting plate 21 is screwed to the support shaft 2, and the support shaft 2 and the lower connecting plate 21 are respectively provided with external threads and internal threads in advance.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A damped bearing, characterized by: bearing housing (1), back shaft (2) have, bearing housing (1) fixedly connected with upper junction plate (11), back shaft (2) fixedly connected with lower connecting plate (21), bearing housing (1) with be equipped with outer lane (3), ball (4), bearing cap (5) between back shaft (2), outer lane (3), ball (4), bearing cap (5) and bearing housing (1) enclose and are equipped with inner chamber (12), inner chamber (12) packing has damping fluid (6), bearing housing (1) is equipped with the intercommunication regulation hole (13) of inner chamber (12), regulation hole (13) sealing connection has adjusting screw (7).

2. The damped bearing according to claim 1, wherein: the diameter of one end, close to the bearing shell (1), of the support shaft (2) is reduced in a stepped mode, and the balls (4) are evenly distributed on the end, with the diameter reduced in the stepped mode, of the support shaft (2) in the circumferential mode.

3. The damped bearing according to claim 1, wherein: the bearing shell (1) is fixedly connected with an outer ring fixing plate (14) through a set screw (16).

4. A damped bearing according to claim 3, wherein: the supporting shaft (2) is sleeved with a dustproof ring (22) in a sealing mode, the dustproof ring (22) is located between the supporting shaft (2) and the outer ring fixing plate (14), and the lower end face of the outer ring fixing plate (14) is flush with the lower end face of the dustproof ring (22).

5. The damped bearing according to claim 4, wherein: the supporting shaft (2) is sleeved with a retaining plate (15) for retaining the outer ring fixing plate (14) and the dust ring (22), and the retaining plate (15) is fixed on the lower end faces of the outer ring fixing plate (14) and the dust ring (22) through a set screw (16).

6. The damped bearing according to claim 1, wherein: the damping fluid (6) is silicone oil.

7. The damped bearing according to claim 1, wherein: the upper connecting plate (11) is sleeved on the bearing shell (1), and a transverse screw (8) is arranged between the upper connecting plate (11) and the bearing shell (1).

8. The damped bearing of claim 1, wherein: the lower connecting plate (21) is in threaded connection with the supporting shaft (2).