CN114922909A

CN114922909A - Low-speed waterproof bearing

Info

Publication number: CN114922909A
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: 2022-08-19
Anticipated expiration: 2042-03-29
Also published as: CN114922909B

Abstract

The invention discloses a low-speed waterproof bearing, which comprises a rotating shaft, wherein a bearing is arranged on the rotating shaft, an upper cover is fixedly arranged on the upper side of an outer ring of the bearing, an upper connecting pipe penetrates through the middle part of the upper cover downwards, a sealing ring is fixedly arranged on the upper side of an inner ring of the bearing, the sealing ring is arranged around the connecting pipe, sealing oil is arranged in the sealing ring, a lower cover is fixedly arranged on the lower side of the outer ring of the bearing, a lower connecting pipe penetrates through the lower side of the center part of the lower cover downwards, perfect isolation on water can be realized through the sealing oil with the density higher than that of the water, water does not enter the bearing, normal operation of the bearing is ensured, the normal rotation of the bearing and the shaft is not influenced while the water is prevented, the structure is simple, the effect is obvious, and the bearing is worth of popularization.

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 the modern mechanical equipment, and has the main functions of supporting the mechanical rotating body, reducing the friction coefficient in the movement process of the mechanical rotating body and ensuring the rotation precision of the mechanical rotating body;

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 can not contact water for use, so that the waterproof of the bearing needs to be realized, the existing waterproof structure of the bearing is not good, some possible waterproof effects are not good, and the rotation of the bearing and the shaft can be influenced due to the good waterproof effect.

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 the sealing oil with the density higher than that of water, so that water does not enter the bearing, the normal operation of the bearing is ensured, and the normal rotation of the bearing and a shaft is not influenced while the bearing is waterproof.

Technical scheme

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 of upside of the outer lane of bearing, the middle department of upper cover runs through to the downside and is provided with the connecting pipe, the fixed sealing ring that is provided with of inner circle upside of bearing, the sealing ring encircles the connecting pipe sets up, the inside sealed 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 to surround be provided with set firmly in epaxial seal groove rotates, be provided with in the seal groove sealed oil.

Further, the upper cover, the lower cover, the sealing ring and the bearing are subjected to sealing treatment.

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

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

Furthermore, 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 higher than that of water can realize perfect isolation of 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, the structure is simple, the effect is remarkable, and the sealing oil is worthy of popularization.

Drawings

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

Reference numerals

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 invention, reference is made to the following description, taken in conjunction with the accompanying drawings and examples:

as shown in fig. 1, the invention discloses a low-speed waterproof bearing, which 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 the outer ring of the bearing 5, an upper connecting pipe 7 penetrates through the lower side of the middle part of the upper cover 9, a sealing ring 6 is fixedly arranged on the upper side of the inner ring of the bearing 5, the sealing ring 6 is arranged around the connecting pipe 7, sealing oil 8 is arranged inside 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 penetrates through the lower side of the center part 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 to the rotating shaft 1 and is subjected to sealing treatment, then the sealing ring 6 is fixedly connected to the bearing 5 and is subjected to sealing treatment, then the upper cover 9 is fixedly connected to the bearing 5 and is subjected to sealing treatment, then the lower cover 4 is fixedly connected to the bearing 5 and is subjected to sealing treatment, then the sealing groove 2 is fixedly connected to the rotating shaft 1 and is subjected to sealing treatment, finally sealing oil 8 is added into the sealing groove 2, and sealing oil 8 is added into the sealing ring 6 through the upper connecting pipe 7;

after the installation, the bearing is integrally placed into water, and when the bearing is placed into the water, the balance of the pressure of the upper sealing oil 8 and the lower sealing oil 8 is ensured, so that the complete waterproof isolation of the interior of the bearing can be realized.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the technical solutions of the present invention have been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced equally; such modifications or substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. The utility model provides a low-speed waterproof bearing which characterized in that: including pivot (1), be provided with bearing (5) in pivot (1), the fixed upper cover (9) that is provided with of upside of the outer lane of bearing (5), the middle 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 of inner circle upside of bearing (5), sealing ring (6) encircle connecting pipe (7) set up, sealing ring (6) inside is provided with sealed oil (8), the fixed lower cover (4) that is provided with of 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 connecting pipe (3) is encircleed and is provided with set firmly in seal groove (2) on pivot (1) down, be provided with in seal groove (2) sealed oil (8).

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

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: the sealing oil has a density (8) greater than water.

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