CN219262758U

CN219262758U - Axial flow fan with seal assembly

Info

Publication number: CN219262758U
Application number: CN202223400514.5U
Authority: CN
Inventors: 许国军; 吴安浩; 何嘉豪
Original assignee: Jiangsu Zhongrui Shengda Power Machinery Co ltd
Current assignee: Jiangsu Zhongrui Shengda Power Machinery Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-06-27
Anticipated expiration: 2032-12-16

Abstract

The utility model discloses an axial flow fan with a sealing component, which comprises a main shaft, a bearing seat arranged on the main shaft, a bearing arranged in the bearing seat and end covers respectively arranged at the end parts of the bearing seat, wherein the bearing seat comprises a sleeve body and mounting seats respectively arranged at the two ends of the sleeve body, mounting cavities are respectively arranged at one ends of the two mounting seats far away from the sleeve body, the bearing is arranged in the corresponding mounting cavities, a gland is connected with one end of the end cover far away from the bearing seat through screws, an inner sealing groove is arranged at one end of the end cover facing the bearing, an inner sealing ring is arranged in the inner sealing groove, an outer sealing groove is arranged at one end of the end cover facing the gland, and an outer sealing ring is arranged in the outer sealing groove. The inner sealing groove and the inner sealing ring are arranged in the utility model, so that lubricating oil in the bearing seat is prevented from leaking outwards along the main shaft; the outer sealing groove and the outer sealing ring are arranged, so that dust particles, water and the like outside the motor are prevented from entering the main shaft or the motor, the inside of the motor is kept dry, and the service life of the motor is prolonged.

Description

Axial flow fan with seal assembly

Technical Field

The utility model relates to the field of axial flow fans, in particular to an axial flow fan with a sealing component.

Background

The main shaft of the fan is a transmission part which is indispensable to the operation of the fan and plays a vital role in the operation process of the fan. The existing fan bearing seat and the main shaft are split, when the fan runs, larger vibration can be generated, so that a gap is formed between the main shaft and the bearing seat, oil in the bearing seat can leak outwards along the main shaft, and abrasion between the bearing seat and the main shaft is caused between the external particle bearing seat and the main shaft, so that the service life of the main shaft is influenced; or external water enters the motor along the main shaft, so that the motor is influenced.

Disclosure of Invention

The utility model aims to provide an axial flow fan with a sealing assembly.

The utility model has the innovation points that the inner sealing groove and the inner sealing ring are arranged, so that the lubricating oil in the bearing seat is prevented from leaking outwards along the main shaft; the outer sealing groove and the outer sealing ring are arranged, so that dust particles, water and the like outside are prevented from entering the main shaft or the motor, the inside of the motor is kept dry, and the service life of the motor is prolonged; double sealing, further improves axial fan's sealed effect.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides an axial fan with seal assembly, includes main shaft, sets up bearing frame on the main shaft, sets up the bearing in the bearing frame and sets up the end cover at the bearing frame tip respectively, the bearing frame passes through screw connection with the end cover, the bearing frame includes the cover body and sets up the mount pad at cover body both ends respectively, and the one end that the cover body was kept away from to two mount pads is provided with the installation cavity respectively, and the bearing setting is in corresponding installation cavity, the one end screw connection that the bearing frame was kept away from to the end cover has the gland, the end that the end cover was towards the bearing is provided with the inner seal groove, be provided with the inner seal circle in the inner seal groove, the one end that the end cover was towards the gland is provided with outer seal groove, be provided with outer sealing circle in the outer seal groove. An inner sealing groove and an inner sealing ring are arranged to prevent lubricating oil in the bearing seat from leaking outwards along the main shaft; the outer sealing groove and the outer sealing ring are arranged, so that dust particles, water and the like outside are prevented from entering the main shaft or the motor, the inside of the motor is kept dry, and the service life of the motor is prolonged; double sealing, further improves axial fan's sealed effect.

Preferably, the inner sealing ring and the outer sealing ring are lip-shaped sealing rings, the opening of the inner sealing ring faces the bearing, and the opening of the outer sealing ring faces the gland.

Preferably, the mounting seat is provided with more than one positioning groove towards one end of the end cover, and the end cover is provided with a positioning block embedded into the corresponding positioning groove. The positioning groove and the positioning block enable dust, impurities and water outside not to easily enter the main shaft along a longitudinal gap between the bearing seat and the end cover, so that the sealing effect is achieved; and meanwhile, the installation of the end cover can be positioned.

Preferably, the bottom of each positioning groove is provided with a water-swelling water stop strip. The water-swelling water stop strip swells gradually after meeting water, and blocks the gap between the bottom of the positioning groove and the end face of the positioning block, thereby improving the sealing effect.

Preferably, labyrinth seal grooves are formed in the inner side walls of the mounting seats, and sealing strips are arranged in the labyrinth seal grooves. The labyrinth seal groove is provided with a plurality of tooth grooves, so that the flow path of liquid can be changed, the leakage of lubricating oil outwards is gradually reduced, and the labyrinth seal groove and the sealing strip jointly act to further improve the sealing effect.

The beneficial effects of the utility model are as follows:

1. an inner sealing groove and an inner sealing ring are arranged to prevent lubricating oil in the bearing seat from leaking outwards along the main shaft; the outer sealing groove and the outer sealing ring are arranged, so that dust particles, water and the like outside are prevented from entering the main shaft or the motor, the inside of the motor is kept dry, and the service life of the motor is prolonged; double sealing, further improves axial fan's sealed effect.

2. The positioning groove and the positioning block enable dust, impurities and water outside not to easily enter the main shaft along a longitudinal gap between the bearing seat and the end cover, so that the sealing effect is achieved; and meanwhile, the installation of the end cover can be positioned.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

In the figure:

1. a main shaft; 2. a bearing seat; 21. a sleeve body; 22. a mounting base; 23. a positioning groove; 3. a bearing; 4. an end cap; 41. a positioning block; 5. a gland; 6. an inner seal groove; 61. an inner seal ring; 7. an outer seal groove; 71. an outer seal ring; 8. a water-swelling water stop strip; 9. labyrinth seal groove; 91. and (5) a sealing strip.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1, an axial flow fan with a sealing assembly comprises a main shaft 1, a bearing seat 2 arranged on the main shaft 1, bearings 3 arranged at two ends in the bearing seat 2, end covers 4 respectively arranged at two ends of the bearing seat 2, and pressure covers 5 respectively arranged at the end faces of the end covers 4; the bearing seat 2 is fixedly connected with the end cover 4 through a screw, and the gland 5 is fixedly connected with the end cover 4 through a screw; a plurality of positioning grooves 23 are formed in one end, facing the end cover 4, of the mounting seat 22, positioning blocks 41 embedded into the corresponding positioning grooves 23 are arranged on the end cover 4, and water-swelling water stop bars 8 are arranged between the bottom of each positioning groove 23 and the end face of each positioning block 41.

As shown in fig. 1, the bearing seat 2 comprises a sleeve body 21 and mounting seats 22 respectively arranged at two ends of the sleeve body 21, a pair of two mounting seats 22 which are far away from the sleeve body 21 are respectively provided with a mounting cavity, and the bearing 3 is arranged in the corresponding mounting cavity; the inner side wall of each mounting seat 22 is provided with a labyrinth seal groove 9, the labyrinth seal groove 9 is positioned at one side of the bearing 3 far away from the end cover 4, and a sealing strip 91 is arranged in the labyrinth seal groove 9; an inner sealing groove 6 is formed in one end, far away from the bearing seat 2, of the end cover 4, an inner sealing ring 61 is arranged in the inner sealing groove 6, an outer sealing groove 7 is formed in one end, facing the gland 5, of the end cover 4, and an outer sealing ring 71 is arranged in the outer sealing groove 7; the inner seal ring 61 and the outer seal ring 71 are lip seal rings, the opening of the inner seal ring 61 faces the bearing 3, and the opening of the outer seal ring 71 faces the gland 5.

Claims

1. The axial flow fan with the sealing component comprises a main shaft, a bearing seat arranged on the main shaft, a bearing arranged in the bearing seat and end covers respectively arranged at the end parts of the bearing seat, wherein the bearing seat is connected with the end covers through screws,

the bearing frame includes the cover body and sets up the mount pad at cover body both ends respectively, and the one end that the cover body was kept away from to two mount pads is provided with the installation cavity respectively, and the bearing setting is in corresponding installation cavity, the one end screw connection that the bearing frame was kept away from to the end cover has the gland, the one end that the end cover was kept away from to the bearing frame is provided with the inner seal groove, be provided with the inner seal circle in the inner seal groove, the one end that the end cover was kept away from the gland is provided with the outer seal groove, be provided with the outer seal circle in the outer seal groove.

2. The axial flow fan with a sealing assembly according to claim 1, wherein,

the inner sealing ring and the outer sealing ring are lip-shaped sealing rings, the opening of the inner sealing ring faces the bearing, and the opening of the outer sealing ring faces the gland.

3. The axial flow fan with a sealing assembly according to claim 2, wherein,

more than one positioning groove is formed in one end, facing the end cover, of the mounting seat, and positioning blocks embedded into the corresponding positioning grooves are arranged on the end cover.

4. An axial flow fan with a seal assembly according to claim 3,

the bottom of each positioning groove is provided with a water-swelling water stop bar.

5. The axial flow fan with a sealing assembly according to claim 1, wherein,

the inner side wall of each mounting seat is provided with a labyrinth seal groove, and a seal strip is arranged in the labyrinth seal groove.