CN219366618U - Novel end cover type sliding bearing sealing structure - Google Patents

Abstract

The utility model discloses a novel end cover type sliding bearing sealing structure, which relates to the field of sliding bearings and comprises a lower shell, wherein an upper shell is detachably connected to the top surface of the lower shell, a group of bearing bushes matched with each other are wrapped inside the lower shell and the upper shell, a shaft neck is wrapped inside the bearing bushes, end covers are detachably connected to the two ends of the bearing bushes, and extrusion rings matched with the upper shell and the lower shell are arranged on the inner side surfaces of the end covers. According to the utility model, the extrusion ring matched with the lower shell and the upper shell is arranged on the inner side wall of the end cover, the bearing bush is fixed through the end cover during assembly, then the upper shell is fixed on the lower shell through the screw, and the extrusion ring is extruded through the inclined plane of the extrusion ring when the upper shell is screwed down, so that the extrusion ring is tightly attached to the upper shell and the lower shell, the end cover is prevented from falling off, and the sealing effect is better.

Description

Novel end cover type sliding bearing sealing structure

Technical Field

The utility model relates to the field of sliding bearings, in particular to a novel end cover type sliding bearing sealing structure.

Background

Sliding bearings (sliding bearings), bearings operating under sliding friction. The sliding bearing works stably, reliably and noiseless, the sliding surface is separated by lubricating oil without direct contact under the condition of liquid lubrication, friction loss and surface abrasion can be greatly reduced, an oil film also has certain shock absorption capability, but the starting friction resistance is larger, the part of the shaft supported by the bearing is called a journal, a part matched with the journal is called a bearing bush, an antifriction material layer cast on the inner surface of the bearing bush for improving the friction property of the surface of the bearing bush is called a bearing bush, the materials of the bearing bush and the bearing bush are commonly called as sliding bearing materials, and the sliding bearing application occasions are generally under the working condition of low speed and heavy load or operation parts difficult to maintain and fill the lubricating oil.

When the existing sliding bearing end cover is installed, the end cover is generally connected with the shaft housing in a plugging mode, and a rubber pad is arranged at the joint of the end cover and the shaft housing to enable the end cover to seal the shaft housing and prevent leakage of lubricating oil.

But connect the end cover through the mode of pegging graft, can produce vibrations when the bearing is used, can lead to the end cover not hard up, lubricating oil can reveal, and the too big end cover that probably leads to even vibrations drops, and sealed effect is poor.

Disclosure of Invention

Based on the above, the utility model aims to provide a novel end cover type sliding bearing sealing structure so as to solve the technical problems that the end cover is connected with the existing sliding bearing in a plugging manner, vibration can be generated when the bearing is used, the end cover is loose, lubricating oil can leak, even the vibration is too large, the end cover can fall off, and the sealing effect is poor.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel end cover type sliding bearing seal structure, includes the lower casing, lower casing top surface can dismantle and be connected with the casing, and the inside parcel of lower casing and last casing is provided with a set of bush of mutually supporting, the inside parcel of bush is provided with the axle journal, the both ends of bush all can be dismantled and be connected with the end cover, and the medial surface of end cover all is provided with and goes up casing and lower casing complex extrusion ring.

The utility model is further characterized in that the two side surfaces of the bearing bush are respectively provided with a convex strip and a concave groove matched with the other bearing bush, and the inner side surfaces of the extrusion rings are respectively provided with a rubber ring matched with the lower shell and the upper shell.

The utility model is further arranged that the outer walls of the raised strips and the grooves are respectively provided with a rubber pad matched with each other, and the front parts of the lower shell and the upper shell are respectively provided with a rubber pad matched with each other.

The utility model is further arranged that mounting holes are formed on two sides of the lower shell, and mutually matched assembly holes are formed between the lower shell and the upper shell.

The utility model is further arranged that the inner side surfaces of the end covers are provided with insert rings matched with the bearing bushes.

In summary, the utility model has the following advantages:

according to the utility model, the extrusion ring matched with the lower shell and the upper shell is arranged on the inner side wall of the end cover, the bearing bush is fixed through the end cover during assembly, then the upper shell is fixed on the lower shell through the screw, and the extrusion ring is extruded through the inclined plane of the extrusion ring when the upper shell is screwed down, so that the extrusion ring is tightly attached to the upper shell and the lower shell, the end cover is prevented from falling off, and the sealing effect is better.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front cross-sectional view of the present utility model;

FIG. 3 is a side cross-sectional view of the present utility model;

fig. 4 is an enlarged view of fig. 2 a in accordance with the present utility model.

In the figure: 1. a lower housing; 2. an upper housing; 3. bearing bush; 4. a journal; 5. an assembly hole; 6. an end cap; 7. a pressing ring; 8. a rubber ring; 9. a convex strip; 10. a groove; 11. a rubber pad; 12. a mounting hole; 13. and (5) inserting a ring.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance;

in the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

The utility model provides a novel end cover type sliding bearing seal structure, as shown in fig. 1-4, including lower casing 1 and last casing 2, the parcel is provided with a set of axle bush 3 between lower casing 1 and the last casing 2, and the inside parcel of axle bush 3 is provided with axle journal 4, lower casing 1, go up casing 2 and the both ends of axle bush 3 are provided with end cover 6, end cover 6 inner wall is provided with axle bush 3 complex insert ring 13, and the inside wall of end cover 6 all is provided with lower casing 1 and last casing 2 complex extrusion ring 7, during the equipment, with axle bush 3 parcel on axle journal 4, can peg graft end cover 6 at axle bush 3 both ends through insert ring 13, restriction axle bush 3 prevents its separation simultaneously, then place end cover 6 and axle bush 3 on lower casing 1 through the extrusion ring 7 on end cover 6, last cover up casing 2 and fix, thereby can extrude the inclined plane of 7 and promote extrusion ring 7 and lower casing 1 and last casing 2 closely laminating when fixing upper casing 2.

Wherein, the both sides face of axle bush 3 is provided with respectively with another axle bush complex sand grip 9 and recess 10, and axle bush 3 is through sand grip 9 and recess 10 interconnect more firm, all is provided with the rubber pad 11 of mutually supporting in sand grip 9 outer wall and the recess 10, and all is provided with the rubber pad 11 of mutually supporting before lower casing 1 and the last casing 2, and the medial surface of extrusion ring 7 all is provided with the rubber ring 8 with lower casing 1 and last casing 2 complex, and the leakproofness of junction all can be increased to rubber ring 8 and rubber pad 11.

Further, the upper shell 2 is provided with an oil filling hole, the bearing bush 3 is provided with an oil through groove, when the bearing bush is used, lubricating oil can be filled between the shell and the bearing bush 3 through the oil filling hole, and when the journal 4 rotates, the lubricating oil can pass through the bearing bush 3 through the oil through groove to be coated on the journal 4 to form an oil film.

On the basis of the above structure, in this embodiment, the two sides of the lower housing 1 are provided with the mounting holes 12, the device is fixed at the position where the device needs to be used through the mounting holes 12, and the assembly holes 5 matched with each other are provided between the lower housing 1 and the upper housing 2, so as to fixedly connect the lower housing 1 and the upper housing 2 by using screws.

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims (5)

1. The utility model provides a novel end cover type sliding bearing seal structure, includes casing (1), its characterized in that: the utility model discloses a lower casing (1) top surface is connected with casing (2) in dismantling, and lower casing (1) and the inside parcel of last casing (2) are provided with a set of bush (3) of mutually supporting, the inside parcel of bush (3) is provided with axle journal (4), the both ends of bush (3) all can be dismantled and be connected with end cover (6), and the medial surface of end cover (6) all is provided with and goes up casing (2) and lower casing (1) complex extrusion ring (7).

2. The novel end cap type sliding bearing sealing structure according to claim 1, wherein: the two side surfaces of the bearing bush (3) are respectively provided with a raised line (9) and a groove (10) which are matched with the other bearing bush (3), and the inner side surfaces of the extrusion rings (7) are respectively provided with rubber rings (8) which are matched with the lower shell (1) and the upper shell (2).

3. The novel end cap type sliding bearing sealing structure according to claim 2, wherein: rubber pads (11) matched with each other are arranged in the outer walls of the raised strips (9) and the grooves (10), and the rubber pads (11) matched with each other are arranged in front of the lower shell (1) and the upper shell (2).

4. The novel end cap type sliding bearing sealing structure according to claim 1, wherein: mounting holes (12) are formed in two sides of the lower shell (1), and mutually matched assembly holes (5) are formed between the lower shell (1) and the upper shell (2).

5. The novel end cap type sliding bearing sealing structure according to claim 1, wherein: the inner side surfaces of the end covers (6) are provided with insert rings (13) matched with the bearing bushes (3).