CN114922909B

CN114922909B - Low-speed waterproof bearing

Info

Publication number: CN114922909B
Application number: CN202210319553.8A
Authority: CN
Inventors: 周明海; 黄列; 陆镇桥; 卢利军
Original assignee: NINGBO WANFENG BEARING CO Ltd
Current assignee: NINGBO WANFENG BEARING CO Ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2023-08-18
Anticipated expiration: 2042-03-29
Also published as: CN114922909A

Abstract

The invention discloses a low-speed waterproof bearing, which comprises a rotating shaft, wherein the rotating shaft is provided with a bearing, the upper side of an outer ring of the bearing is fixedly provided with an upper cover, the middle part of the upper cover is provided with an upper connecting pipe in a penetrating way to the lower side, the upper side of an inner ring of the bearing is fixedly provided with a sealing ring, the sealing ring is arranged around the connecting pipe, sealing oil is arranged in the sealing ring, the lower side of the outer ring of the bearing is fixedly provided with a lower cover, the lower connecting pipe is provided with a penetrating way to the lower side at the center of the lower cover, and the perfect isolation of water can be realized through the sealing oil with the density larger than that of water, so that the inside of the bearing is not fed with water, the normal running of the bearing is ensured, the normal rotation of the bearing and the shaft is not influenced while the bearing is waterproof, the structure is simple, the effect is obvious, and the low popularization value.

Description

Low-speed waterproof bearing

Technical Field

The invention relates to the field of bearing correlation, in particular to a low-speed waterproof bearing.

Background

The bearing is an important part in modern mechanical equipment, and has the main functions of supporting a mechanical rotating body, reducing the friction coefficient in the motion process and ensuring the rotation precision;

the bearing is difficult to avoid the situation that the bearing needs to be put into water for use when in use, but the inside of the bearing cannot be used by contacting with water, so that the bearing needs to be waterproof, the waterproof structure of the bearing is not very good at present, some possible waterproof effects are not feasible, and the rotation of the bearing and the shaft is possibly influenced due to the good waterproof effects.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the low-speed waterproof bearing, which can realize perfect isolation of water through sealing oil with density larger than that of water, so that water does not enter the bearing, normal operation of the bearing is ensured, and normal rotation of the bearing and a shaft is not influenced while water is prevented.

Technical proposal

The utility model provides a low-speed waterproof bearing, includes the pivot, be provided with the bearing in the pivot, the fixed upper cover that is provided with in upside of the outer lane of bearing, the centre department of upper cover runs through to the downside and is provided with the connecting pipe, the fixed sealing ring that is provided with in inner circle upside of bearing, the sealing ring encircles the connecting pipe sets up, the inside sealing oil that is provided with of sealing ring, the fixed lower cover that is provided with of outer lane downside of bearing, the center department of lower cover runs through to the downside and is provided with down the connecting pipe, the downside of lower connecting pipe encircles around be provided with set firmly in the epaxial seal groove of pivot, be provided with in the seal groove sealing oil.

Further, the upper cover, the lower cover, the sealing ring and the bearing are sealed.

Further, the joint of the bearing and the rotating shaft is sealed.

Further, the sealing oil has a density greater than that of water.

Further, the joint of the rotating shaft and the sealing groove is sealed.

Advantageous effects

Compared with the prior art, the invention has the following beneficial effects: the sealing oil with the density larger than that of water can realize perfect isolation of the water, so that water does not enter the bearing, normal operation of the bearing is guaranteed, normal rotation of the bearing and the shaft is not influenced while water is prevented, and the sealing oil bearing is simple in structure, remarkable in effect and worthy of popularization.

Drawings

Fig. 1 is a schematic structural view of a low-speed waterproof bearing according to the present invention.

Reference numerals and signs

The sealing device comprises a rotating shaft 1, a sealing groove 2, a lower connecting pipe 3, a lower cover 4, a bearing 5, a sealing ring 6, an upper connecting pipe 7, sealing oil 8 and an upper cover 9.

Detailed Description

For a better illustration of the present invention, the following description is made with reference to the accompanying drawings and examples:

the invention discloses a low-speed waterproof bearing, which is shown in fig. 1, and comprises a rotating shaft 1, wherein a bearing 5 is arranged on the rotating shaft 1, an upper cover 9 is fixedly arranged on the upper side of an outer ring of the bearing 5, an upper connecting pipe 7 is arranged in a penetrating manner at the lower side of the middle of the upper cover 9, a sealing ring 6 is fixedly arranged on the upper side of an inner ring of the bearing 5, the sealing ring 6 is arranged around the connecting pipe 7, sealing oil 8 is arranged in the sealing ring 6, a lower cover 4 is fixedly arranged on the lower side of the outer ring of the bearing 5, a lower connecting pipe 3 is arranged in a penetrating manner at the lower side of the center of the lower cover 4, a sealing groove 2 fixedly arranged on the rotating shaft 1 is arranged around the lower side of the lower connecting pipe 3, and the sealing oil 8 is arranged in the sealing groove 2.

Further, the upper cover 9, the lower cover 4, the seal ring 6 and the bearing 5 are sealed.

Further, the joint of the bearing 5 and the rotating shaft 1 is sealed.

Further, the sealing oil has a density 8 greater than water.

Further, the joint of the rotating shaft 1 and the sealing groove 2 is sealed.

Specifically, during installation, the sealing groove 2, the lower cover 4, the bearing 5, the sealing ring 6 and the upper cover 9 are sleeved into the rotating shaft 1 in sequence, then the bearing 5 is fixedly connected with the rotating shaft 1 and subjected to sealing treatment, then the sealing ring 6 is fixedly connected with the bearing 5 and subjected to sealing treatment, then the upper cover 9 is fixedly connected with the bearing 5 and subjected to sealing treatment, then the lower cover 4 is fixedly connected with the bearing 5 and subjected to sealing treatment, then the sealing groove 2 is fixedly connected with the rotating shaft 1 and subjected to sealing treatment, finally sealing oil 8 is added into the sealing groove 2, and the sealing oil 8 is added into the sealing ring 6 through the upper connecting pipe 7;

after the installation, the bearing is integrally put into water, and when the bearing is put into water, the pressure balance of the sealing oil 8 at the upper part and the lower part is ensured, so that the bearing can be completely waterproof and isolated.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the technical solution of the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solution described in the foregoing embodiments may be modified or some of the technical features thereof may be equally substituted; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A low-speed waterproof bearing, characterized in that: including pivot (1), be provided with bearing (5) on pivot (1), the upside of the outer lane of bearing (5) is fixed to be provided with upper cover (9), the centre department of upper cover (9) runs through to the downside and is provided with connecting pipe (7), the fixed sealing ring (6) that is provided with in inner circle upside of bearing (5), sealing ring (6) encircle connecting pipe (7) set up, sealing ring (6) inside is provided with sealing oil (8), the fixed lower cover (4) that is provided with in outer lane downside of bearing (5), the center department of lower cover (4) runs through to the downside and is provided with down connecting pipe (3), the downside of lower connecting pipe (3) encircle around encircleing and be provided with set firmly in seal groove (2) on pivot (1), be provided with in seal oil (8), density (8) of seal oil are greater than water.

2. A low-speed waterproof bearing according to claim 1, characterized in that: and sealing treatment is performed among the upper cover (9), the lower cover (4), the sealing ring (6) and the bearing (5).

3. A low-speed waterproof bearing according to claim 2, characterized in that: and the joint of the bearing (5) and the rotating shaft (1) is subjected to sealing treatment.

4. A low-speed waterproof bearing according to claim 3, characterized in that: and the joint of the rotating shaft (1) and the sealing groove (2) is subjected to sealing treatment.