CN218093491U

CN218093491U - Sealed AC power frequency axial flow fan

Info

Publication number: CN218093491U
Application number: CN202222044250.8U
Authority: CN
Inventors: 张晓冬; 严烨男; 潘俊
Original assignee: Suzhou Telecom Motor Factory Co ltd
Current assignee: Suzhou Telecom Motor Factory Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-12-20
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a canned type exchanges power frequency axial fan, including casing, fan blade, rotor subassembly and stator module, the fan blade sets up in the casing, the rotor subassembly includes rotor and rotor shaft, the rotor shaft overcoat is equipped with rotor, protecgulum and hou gai, be provided with the annular groove on the protecgulum, the sealed component is equipped with to the annular groove liam, the one end of rotor shaft is connected the fan blade, the other end of rotor shaft is connected with the back lid, the protecgulum with the back lid cooperation forms sealed cavity, install rotor and stator module in the sealed cavity, the rotor cover is established on the rotor shaft, the stator module pressure equipment is in the protecgulum with between the back lid. The utility model discloses not only can reach dampproofing waterproof effect, this kind of simple structure, with low costs moreover, it is also convenient to install and maintain.

Description

Sealed AC power frequency axial flow fan

Technical Field

The utility model relates to an outdoor spare fan such as island, naval vessel, tunnel especially relates to a canned type exchanges power frequency axial fan.

Background

The axial flow fan is a fan commonly used by industrial and mining enterprises, is different from a common fan, has a cylindrical shape in the appearance of a motor and fan blades, is used for local ventilation, is convenient to install, has obvious ventilation and air exchange effects, and can be connected with a fan barrel to send air to a designated area.

For example, chinese patent No.: CN216894960U is a sealed fan, which uses the pressure of the conveying medium gas to keep the negative pressure area of the sealed cavity of the sealed transmission device at high pressure, so that the solid substance can not enter the sealed cavity, thereby maintaining the seal effectively.

But the utility model discloses a cost of manufacture is high, and the part requires accurately, and the mechanical wear of fan is inevitable, and the gaseous easy leakage in wearing and tearing back influences the production operating mode.

Disclosure of Invention

In order to solve the problem, the utility model provides a canned type exchanges power frequency axial fan.

The main contents of the utility model include:

the fan blade is arranged in the machine shell. The rotor subassembly includes rotor and rotor shaft, the rotor shaft overcoat is equipped with rotor, protecgulum and hou gai, be provided with the annular groove on the protecgulum, the sealed component is equipped with to the annular groove liam, the one end of rotor shaft is connected the fan blade, the other end of rotor shaft is connected with the back lid, the protecgulum with the cooperation of back lid forms sealed cavity, install rotor and stator module in the sealed cavity, the rotor cover is established on the rotor shaft, the stator module pressure equipment is in the protecgulum with between the back lid.

Preferably, the sealing member is a skeleton type oil seal.

Preferably, the front cover and the rear cover are fixed by bolts in a penetrating manner.

Preferably, a gap is formed between the rotor and the stator assembly, and the gap is 0.145mm.

Preferably, the wall surface of the blade handle of the fan blade is provided with a plurality of water outlet holes.

Preferably, the rotor shaft is fixedly connected with the fan blades through countersunk screws.

Preferably, the exposed outgoing line of the fan is a screw hole joint.

The utility model provides a canned type exchanges power frequency axial fan, its beneficial effect lies in can guaranteeing totally enclosed cavity with rotor and stator seal installation, not only can reach dampproofing waterproof effect, this kind of simple structure, with low costs moreover, and it is also convenient to install and maintain.

Drawings

FIG. 1 is a schematic partial cross-sectional view of the present invention;

fig. 2 is a schematic view of the structure of the exposed lead-out wire of the present invention.

The parts in the drawings are numbered as follows: 1-casing, 2-fan blade, 3-water outlet, 4-front cover, 5-rear cover, 6-bolt, 7-stator component, 8-rotor shaft, 9-rotor, 10-framework type oil seal and 11-screw hole joint.

Detailed Description

The technical solution protected by the present invention is specifically described below with reference to the accompanying drawings.

Please refer to fig. 1 and fig. 2. The utility model provides a canned type exchanges power frequency axial fan, including casing 1, fan blade 2, rotor subassembly and stator module 7, the fan blade sets up in the casing. The rotor subassembly includes rotor 9 and

rotor shaft

8, 8 overcoat of rotor shaft is equipped with rotor 9, protecgulum 4 and hou gai 5, the one end of rotor shaft 8 is connected fan blade 2, the other end of rotor shaft 8 is connected with hou gai 5. The wall surface of the blade handle of the fan blade 2 is provided with a plurality of water outlet holes 3, so that the water in the plastic fan blade can be thrown out when the fan is electrified and rotated in a humid environment or an outdoor rainy day. Furthermore, the exposed outgoing line of the fan is provided with a screw hole joint 11, so that the waterproof performance of the exposed part of the outgoing line can be well ensured.

Through holes are formed in the front cover 4 and the rear cover 5, bolts 6 are installed in the through holes, two ends of each bolt 6 are screwed through nuts or screw caps, the front cover 4 and the rear cover 5 are matched with each other to form a sealed cavity after the bolts 6 are fixed, and sealing rings are added to two ends of each bolt 6 to ensure the sealing performance of the whole machine. An annular groove is formed in the front cover 4, and a framework type oil seal 10 is installed in the annular groove to guarantee the sealing performance of the main shaft part of the fan. Still install rotor and stator module in the sealed cavity, the rotor cover is established on the rotor shaft, the stator module pressure equipment is in protecgulum and 4 between the back lid 5, rotor 9 with gapped setting between the stator module 7, the clearance is 0.145mm, is provided with the rising that the clearance can effectual reduction fan temperature between rotor and the stator module.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. The utility model provides a canned type exchanges power frequency axial fan which characterized in that includes:

the fan blade is arranged in the machine shell;

the rotor subassembly includes rotor and rotor shaft, the rotor shaft overcoat is equipped with rotor, protecgulum and hou gai, be provided with the annular groove on the protecgulum, the sealed component is equipped with to the annular groove liam, the one end of rotor shaft is connected the fan blade, the other end of rotor shaft is connected with the back lid, the protecgulum with the cooperation of back lid forms sealed cavity, install rotor and stator module in the sealed cavity, the stator module pressure equipment is in the protecgulum with between the back lid.

2. The sealed alternating current power frequency axial flow fan according to claim 1, wherein the sealing element is a framework oil seal.

3. The sealed ac line-frequency axial flow fan according to claim 1, wherein the front cover and the rear cover are fixed by bolts.

4. The sealed ac line frequency axial flow fan according to claim 1, wherein a gap is provided between said rotor and said stator assembly, and said gap is 0.145mm.

5. The sealed ac line-frequency axial flow fan according to claim 1, wherein the wall surface of the blade shank of the blade is provided with a plurality of water outlet holes.

6. The sealed AC industrial frequency axial flow fan according to claim 1, wherein the rotor shaft is fixedly connected with the fan blades through countersunk head screws.

7. The sealed AC industrial frequency axial flow fan as set forth in claim 1, wherein a screw hole joint is provided at an exposed lead-out line of said fan.