CN211259376U

CN211259376U - Seal of bearing end

Info

Publication number: CN211259376U
Application number: CN201921921372.2U
Authority: CN
Inventors: 曹春晓; 许伟峰; 田佳圣
Original assignee: Hangzhou Chaolong Pump Co ltd
Current assignee: Hangzhou Chaolong Pump Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-08-14
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a bearing end seal, which comprises a bearing box, wherein a bearing is arranged in the bearing box, a transmission shaft is arranged at the bearing, the bearing and the transmission shaft are fixed through a fastener, and a gland is arranged on one side of the bearing box; the oil slinger is characterized in that a skeleton oil seal is arranged at the position, close to the transmission shaft, of the pressing cover, an oil slinger is arranged on the transmission shaft between the bearing and the pressing cover, a plurality of grooves are formed in the oil slinger from the center to the outer side, and the grooves are radially arranged along the oil slinger. The utility model discloses can prevent when the skeleton oil blanket became invalid that lubricating oil leaks or reduce lubricating oil and leak, increase of service life.

Description

Seal of bearing end

Technical Field

The utility model relates to a sealing device especially relates to a bearing end's is sealed.

Background

In the prior art, the bearing end part of the bearing box, which is provided with the rotating shaft, is generally isolated by a framework oil seal so as to prevent lubricating oil from leaking and the like. After long-term use, the framework oil seal has the problems of failure and the like, and further internal lubricating oil leakage is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem, providing a bearing end's is sealed, can prevent when the skeleton oil blanket became invalid that lubricating oil leaks or reduces lubricating oil and leak.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a bearing end seal comprises a bearing box, wherein a bearing is arranged in the bearing box, a transmission shaft is arranged at the bearing, the bearing and the transmission shaft are fixed through a fastener, and a gland is arranged on one side of the bearing box;

the oil slinger is characterized in that a skeleton oil seal is arranged at the position, close to the transmission shaft, of the pressing cover, an oil slinger is arranged on the transmission shaft between the bearing and the pressing cover, a plurality of grooves are formed in the oil slinger from the center to the outer side, and the grooves are radially arranged along the oil slinger.

Further: the cross section of the framework oil seal is C-shaped.

Further: the fastener comprises a round nut and a locking plate.

Further: and a water retaining ring is arranged on the transmission shaft at the outer side of the gland.

Further: the oil slinger is installed on the transmission shaft through a center hole of the oil slinger, the side of the oil slinger with the groove faces the gland, and a gap is formed between the oil slinger and the gland.

Further: an oil return groove is formed in the bearing box.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses can prevent when the skeleton oil blanket became invalid that lubricating oil leaks or reduce lubricating oil and leak, increase of service life.

Drawings

FIG. 1 is a seal cross-sectional view of a bearing end.

Fig. 2 is a perspective view of the oil slinger.

Fig. 3 is a left side view of the slinger.

Fig. 4 is an enlarged view of S in fig. 1.

Detailed Description

Referring to fig. 1 to 4, a bearing end seal comprises a bearing box 1, two bearings 2 are installed in the bearing box 1, a transmission shaft 7 is installed at the bearings 2, the bearings 2 and the transmission shaft 7 are fixed through fasteners, and a gland 3 is arranged on one side of the bearing box 1.

The fastener comprises a round nut 8 on the left side and a locking plate 9 on the right side.

The oil seal structure is characterized in that a skeleton oil seal 4 is arranged at the position, close to the transmission shaft 7, of the pressing cover 3, an oil slinger 6 is arranged on the transmission shaft 7 between the bearing 2 and the pressing cover 3, a plurality of grooves 61 are formed in the oil slinger 6 from the center to the outer side, and the grooves 61 are radially arranged along the oil slinger 6.

The framework oil seal has an isolation effect on internal lubricating oil and prevents leakage. When the device runs, the oil slinger rotates along with the rotating shaft, lubricating oil to be leaked is thrown back into the bearing box along the inner wall of the gland and the groove by centrifugal force generated by the oil slinger during rotation, and when the framework oil seal is effective, the oil slinger and the framework oil seal play a role in dual isolation. Because the sealing and lubricating device at the bearing end is designed, when the framework oil seal fails, the lubricating oil can be prevented from leaking or reduced, and the service life is prolonged.

In the embodiment, the cross section of the framework oil seal 4 is C-shaped. The sealing effect is better.

In the embodiment, a water retaining ring 5 is arranged on the transmission shaft 7 outside the gland 3.

In the embodiment, the oil slinger 6 is mounted on the transmission shaft 7 through a central hole 62 thereof, and the side with the groove 61 faces the gland 3, and the oil slinger 6 and the gland 3 have a gap therebetween. Is favorable for oil return.

In the embodiment, an oil return groove 100 is arranged in the bearing box 1, and the oil return groove is obliquely arranged. The lubricating oil thrown out by the oil slinger partially flows back to the oil return groove to be reused.

Above only do the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiment, all belong to the technical scheme of the present invention all belong to the protection scope of the present invention. For those skilled in the art, several modifications can be made without departing from the principle of the present invention, and such modifications should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a bearing end's is sealed, includes bearing box (1), installation bearing (2) in bearing box (1), bearing (2) department installation transmission shaft (7), bearing (2) are fixed through the fastener with transmission shaft (7), bearing box (1) one side sets up gland (3), its characterized in that:

the bearing is characterized in that a skeleton oil seal (4) is mounted at the position, close to the transmission shaft (7), of the pressing cover (3), an oil slinger (6) is mounted on the transmission shaft (7) between the bearing (2) and the pressing cover (3), a plurality of grooves (61) are formed in the oil slinger (6) from the center to the outer side, and the grooves (61) are radially arranged along the oil slinger (6).

2. A bearing end seal according to claim 1, wherein:

the section of the framework oil seal (4) is C-shaped.

3. A bearing end seal according to claim 1, wherein:

the fastener comprises a round nut (8) and a locking plate (9).

4. A bearing end seal according to claim 1, wherein:

and a water retaining ring (5) is arranged on the transmission shaft (7) at the outer side of the gland (3).

5. A bearing end seal according to claim 1, wherein:

the oil slinger (6) is arranged on the transmission shaft (7) through a central hole (62) of the oil slinger, the side with the groove (61) faces the gland (3), and a gap is reserved between the oil slinger (6) and the gland (3).

6. A bearing end seal according to claim 5, wherein:

an oil return groove (100) is arranged in the bearing box (1).