CN218717577U

CN218717577U - Motor direct-connected type double-impeller centrifugal blower using sliding bearing

Info

Publication number: CN218717577U
Application number: CN202223096640.6U
Authority: CN
Inventors: 金炳庆; 戴勤生; 冯晨远; 姚建新
Original assignee: Gl-Turbo LLC
Current assignee: Gl-Turbo LLC
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-24
Anticipated expiration: 2032-11-21

Abstract

The utility model relates to an use plain bearing's motor direct-connected type bilobed wheel centrifugal blower. The utility model discloses a drive assembly, head assembly and drive shaft, drive assembly includes motor housing, motor housing both ends symmetry respectively are equipped with head assembly, head assembly includes impeller, diffuser seat and spiral case, the spiral case is connected in motor housing, the diffuser seat is located on the spiral case, the spiral case outer end is equipped with the fan import, the drive shaft both ends are equipped with slide bearing respectively, the drive shaft both ends are passed through the slide bearing supporting and are connected the impeller, drive assembly is used for providing the torque for the drive shaft. An use motor direct-connected type bilobed wheel centrifugal blower of slide bearing, its compact structure has saved the shaft coupling, reliable and stable, can bear and receive high rotational speed, the maintenance cost is low, not only the cost is reduced, has still improved efficiency, mainly used biochemical aeration field.

Description

Motor direct-connected type double-impeller centrifugal blower using sliding bearing

Technical Field

The utility model belongs to the technical field of mechanical structure technique and specifically relates to indicate an use slide bearing's motor direct-connected bilobed wheel centrifugal blower.

Background

In the prior art, a motor of a motor direct-connected double-impeller centrifugal blower is used as driving equipment, the rotating speed is 3000-3600 RPM, the motor is connected with a machine head assembly, a high-speed shaft is connected with the motor, and a motor shaft is supported by two ball bearings.

In the prior art, motor bearings utilize smooth metal balls and lubricated inner and outer ring metal to reduce friction. These balls "carry" the load, support the motor shaft, and allow the motor (rotor) to rotate smoothly at high speeds.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned weak point to a motor direct-connected type bilobed wheel centrifugal blower who uses slide bearing is provided, its compact structure has saved the shaft coupling, not only the cost is reduced, has still improved efficiency.

According to the utility model provides a technical scheme: the utility model provides an use two impeller centrifugal blower of motor direct-connected of slide bearing, includes drive assembly, head assembly and drive shaft, drive assembly includes motor housing, motor housing both ends symmetry respectively are equipped with head assembly, head assembly includes impeller, diffuser seat and spiral case, the spiral case is connected in motor housing, diffuser seat is located on the spiral case, the spiral case outer end is equipped with the fan import, the drive shaft both ends are equipped with slide bearing respectively, the drive shaft both ends are passed through the slide bearing supporting and are connected the impeller, drive assembly is used for providing the torque for the drive shaft.

The utility model discloses an in an embodiment, drive assembly still includes electric motor rotor and motor stator, motor stator links to each other with motor housing, motor rotor locates in motor stator, the drive shaft links to each other with motor rotor.

In an embodiment of the present invention, the motor stator is in interference fit with the motor housing.

The utility model discloses an in an embodiment, bilobed wheel centrifugal blower still includes the motor end cover, motor end cover one end is connected with motor housing, and the other end is connected with the spiral case.

In an embodiment of the present invention, an oil seal is disposed in the motor end cover.

Compared with the prior art, the technical scheme of the utility model have following advantage:

an use motor direct-connected type bilobed wheel centrifugal blower of slide bearing, its compact structure has saved the shaft coupling, reliable and stable, can bear and receive high rotational speed, the maintenance cost is low, not only the cost is reduced, has still improved efficiency, mainly used biochemical aeration field.

Drawings

In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which

Fig. 1 is the overall structure schematic diagram of the electric motor direct-connected double-impeller centrifugal blower using the sliding bearing of the present invention.

Fig. 2 is a schematic view of the pipeline connection of the electric motor direct-connected dual-impeller centrifugal blower using the sliding bearing of the present invention.

Description reference numbers indicate: 100. a drive assembly; 200. a head assembly; 1. a drive shaft; 2. a motor housing; 3. an impeller; 4. a diffuser seat; 5. a volute; 6. a fan inlet; 7. a sliding bearing; 8. a motor rotor; 9. a motor stator; 10. a motor end cover; 11. oil sealing; 12. a pipeline.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.

Referring to fig. 1, the utility model discloses an use two impeller centrifugal blower of motor direct-connected type of slide bearing, including drive assembly 100, head assembly 200 and drive shaft 1, drive assembly 100 includes motor housing 2, motor housing 2 both ends symmetry respectively are equipped with head assembly 200, head assembly 200 includes impeller 3, diffuser seat 4 and spiral case 5, spiral case 5 is connected in motor housing 2, diffuser seat 4 is located on spiral case 5, spiral case 5 outer end is equipped with fan import 6, drive shaft 1 both ends are equipped with slide bearing 7 respectively, drive shaft 1 both ends are passed through the support of slide bearing 7 and are connected impeller 3, drive assembly 100 is used for providing the torque for drive shaft 1.

Specifically, drive assembly 100 still includes motor rotor 8 and motor stator 9, motor stator 9 links to each other with motor housing 2, motor rotor 8 locates in motor stator 9, drive shaft 1 links to each other with motor rotor 8. The impeller 3 and the motor rotor 8 can rotate synchronously.

Specifically, the motor stator 9 is in interference fit with the motor housing 2.

Specifically, 3 centrifugal blower of bilobed wheel still includes motor end cover 10, motor end cover 10 one end is connected with motor housing 2, and the other end is connected with spiral case 5, be equipped with oil seal 11 in the motor end cover 10, guaranteed the leakproofness that drive shaft 1 connects.

The utility model discloses the theory of operation: as shown in fig. 2, the volute 5 in the head assembly 200 at the left end of the motor housing 2 is connected to the blower inlet 6 in the head assembly 200 at the right end of the motor housing 2 through a pipeline 12, when an air flow enters from the blower inlet 6 at the left end and passes through the impeller 3 at the left end, the impeller 3 rotates at a high speed to apply work to the air flow, the air flow obtains a high tangential speed and enters the diffuser seat 4 under the action of centrifugal force, the air flow speed is reduced in the diffuser seat 4, the air flow speed can be converted into pressure potential energy, the pressure potential energy enters the volute 5, and the whole gas secondary compression flow is completed through the blower inlet 6 at the right end, the impeller 3, the diffuser seat 4 and the volute 5 through the pipeline 12. The utility model discloses an use plain bearing's motor direct-connected bilobed wheel centrifugal blower, motor speed adjusts through the frequency conversion, and the control range operates reliably under 3000rpm-30000rpm to adapt to different pressures, use extensively. The device has the advantages of compact structure, no coupler, stability, reliability, capability of bearing high rotating speed, low maintenance cost, reduced cost, improved efficiency and main application in the field of biochemical aeration.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides an use two impeller centrifugal blower of motor direct-connected of slide bearing, a serial communication port, including drive assembly (100), head assembly (200) and drive shaft (1), drive assembly (100) includes motor casing (2), motor casing (2) both ends symmetry respectively are equipped with head assembly (200), head assembly (200) are including impeller (3), diffuser seat (4) and spiral case (5), spiral case (5) are connected in motor casing (2), on spiral case (5) are located in diffuser seat (4), spiral case (5) outer end is equipped with fan import (6), drive shaft (1) both ends are equipped with slide bearing (7) respectively, drive shaft (1) both ends are passed through slide bearing (7) supporting and are connected impeller (3), drive assembly (100) are used for providing the torque for drive shaft (1).

2. The blower of claim 1, wherein the driving assembly (100) further comprises a motor rotor (8) and a motor stator (9), the motor stator (9) is connected with the motor casing (2), the motor rotor (8) is arranged in the motor stator (9), and the driving shaft (1) is connected with the motor rotor (8).

3. The electric motor direct connection type double impeller centrifugal blower using a sliding bearing according to claim 2, characterized in that the motor stator (9) is interference-fitted with the motor casing (2).

4. The motor direct-connected type double-impeller centrifugal blower using the sliding bearing is characterized in that the double-impeller centrifugal blower further comprises a motor end cover (10), wherein one end of the motor end cover (10) is connected with the motor shell (2) and the other end of the motor end cover is connected with the volute (5).

5. The motor direct connection type double-impeller centrifugal blower using the sliding bearing is characterized in that an oil seal (11) is arranged in the motor end cover (10).