CN210510292U

CN210510292U - Oil seal structure

Info

Publication number: CN210510292U
Application number: CN201921446391.4U
Authority: CN
Inventors: 陆锋; 沈磊; 华沈檬
Original assignee: Yueneng Suzhou Power Technology Co Ltd
Current assignee: Yueneng Suzhou Power Technology Co Ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-05-12
Anticipated expiration: 2029-09-02

Abstract

The application discloses oil seal structure, including a rotating main shaft, rotating main shaft passes through the bearing and rotates and install in the base, rotating main shaft in the sealer is installed respectively to the base both ends, rotating main shaft passes the sealer, the sealer with form the clearance between the rotating main shaft surface, the inside axial align to grid of sealer has the hoop air cavity, the hoop air cavity is including deviating from rotating main shaft's gas storage chamber and being close to rotating main shaft's air guide chamber, the air guide chamber is formed with certainly the gas storage chamber to the slope of base slope. The utility model has the advantages of prevent the bearing oil leak.

Description

Oil seal structure

Technical Field

The present disclosure relates to mechanical structures, and more particularly, to an oil seal structure.

Background

In a conventional mechanical mechanism, a rotating shaft and a base are generally mounted via bearings, and in order to prevent mechanical friction, it is necessary to prevent leakage of lubricating oil from the bearings.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil seal structure can prevent the oil leak.

In order to achieve the above object, the present invention provides the following technical solutions.

The embodiment of the application discloses oil seal structure, including a rotating main shaft, rotating main shaft passes through the bearing and rotates and install in the base, rotating main shaft in the sealer is installed respectively to the base both ends, rotating main shaft passes the sealer, the sealer with form the clearance between the rotating main shaft surface, the inside axial align to grid of sealer has the hoop air cavity, the hoop air cavity is including deviating from rotating main shaft's gas storage chamber and being close to rotating main shaft's air guide chamber, the air guide chamber be formed with certainly the gas storage chamber to the slope of base slope.

Preferably, in the oil seal structure described above, the sealer surface is attached to the base end surface.

Preferably, in the oil seal structure, the sealer is fixedly mounted on the base by circumferentially and uniformly distributed bolts.

Preferably, in the oil seal structure, a connection part between the air storage cavity and the air guide cavity is smoothly connected.

Compared with the prior art, the utility model has the advantages of the bearing oil leak has been prevented.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a cross-sectional view of an oil seal according to an embodiment of the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

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, and are only for convenience of description and simplification of description, but 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, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the oil seal structure includes a rotary spindle 100, the rotary spindle 100 is rotatably installed on a base 200 through a bearing, sealers 300 are respectively installed at two ends of the base 200 of the rotary spindle 100, the rotary spindle 100 passes through the sealers 300, a gap 400 is formed between each sealer 300 and the outer surface of the rotary spindle 100, annular air chambers 310 are uniformly arranged inside the sealers 300 along an axial direction, each annular air chamber 310 includes an air storage chamber 320 departing from the rotary spindle 100 and an air guide chamber 330 adjacent to the rotary spindle 100, and the air guide chamber 330 is formed with a slope 340 inclining from the air storage chamber 320 to the base 200.

In the technical scheme, a certain gap is formed between the rotating main shaft and the sealer, so that the rotating main shaft is prevented from being damaged by mechanical friction; after the rotating main shaft rotates, surrounding gas is driven to flow, and due to the existence of the annular gas cavity, high pressure is formed in the annular gas cavity by the gas in the process that the rotating main shaft does not stop rotating, so that the lubricating oil of the bearing is prevented from flowing out; because the air guide cavity forms a slope inclined towards the base, the action of high-pressure gas on lubricating oil is facilitated, sealing is further ensured, and the lubricating oil is prevented from being discharged.

Further, the sealer 300 is surface-fitted to the end face of the base 200.

Among this technical scheme, the fixed back of surface laminating has prevented that oil from flowing from the laminating.

Further, the sealer 300 is fixedly mounted to the base 200 by circumferentially and uniformly distributed bolts 500.

In the technical scheme, the bolt is adopted for fixing, the method is simple and convenient, and the lateral sealing is ensured.

Further, the connection between the air storage chamber 320 and the air guide chamber 330 is smooth.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims

1. The utility model provides an oil seal structure, includes a rotating main shaft, rotating main shaft passes through the bearing and rotates and install in the base, its characterized in that, rotating main shaft in the sealer is installed respectively to base both ends, rotating main shaft passes the sealer, the sealer with form the clearance between the rotating main shaft surface, the inside axial align to grid of sealer has the hoop air cavity, the hoop air cavity is including deviating from rotating main shaft's gas storage chamber and being close to rotating main shaft's air guide chamber, the air guide chamber is formed with certainly the gas storage chamber to the slope of base slope.

2. The oil seal arrangement of claim 1 wherein said sealer surface abuts said base end face.

3. The oil seal structure of claim 1, wherein the sealer is fixedly mounted to the base by circumferentially and evenly spaced bolts.

4. The oil seal structure of claim 1, wherein the connection between the gas storage chamber and the gas guide chamber is smooth.