CN215300342U

CN215300342U - Sealing structure at through position of sliding shaft of full-density motor

Info

Publication number: CN215300342U
Application number: CN202023203417.8U
Authority: CN
Inventors: 邹翀
Original assignee: Teco Westinghouse Motor Co
Current assignee: Teco Westinghouse Motor Co
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-12-24
Anticipated expiration: 2030-12-25

Abstract

The utility model provides a totally close motor sliding shaft link up department seal structure, including totally close motor, slide bearing, locate the oil blanket structure on slide bearing right side, locate the left fan that has outer fan of slide bearing and locate the fan housing in totally close motor left side wind gap, oil blanket structure top is equipped with the spoiler, and the spoiler is equipped with eight and all is fan-shaped around oil blanket structure axle center altogether. The utility model discloses effectively solve slide bearing and lead to the oil leak of pressure differential problem because of outer fan.

Description

Sealing structure at through position of sliding shaft of full-density motor

Technical Field

The utility model mainly relates to the field of motor production, especially, relate to a sealing structure of through-hole of sliding shaft of full-density motor.

Background

The explosion-proof machine has high requirement on the sealing performance of the motor, the sealing of most parts on the motor belongs to static sealing, namely the sealing of two static parts, such as a machine base, a cooler and the like, the sealing of the static parts is easier, but the key of influencing the leakage amount of the motor is the dynamic sealing of a shaft through part, namely the sealing between the static part and a rotating part, the shaft through part of the traditional seat type sliding bearing structure motor adopts mechanical sealing for a sealing cover and a shaft, when the motor runs, a small amount of wind can be blown into the inside of a non-load side bearing through an oil seal when an outer fan supplies the wind, so that the inside and the outside of the bearing have pressure difference, the oil leakage of a self-lubricating bearing is caused, and the service life of the motor is influenced.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect of prior art, the utility model provides a totally close motor sliding shaft link up department seal structure, including totally close motor 1, slide bearing 2, locate the oil blanket structure 3 on slide bearing 2 right side, locate slide bearing 2 left have outer fan 7 and locate the fan housing 4 in the 1 left side wind gap of totally close motor, 3 tops of oil blanket structure are equipped with spoiler 5, spoiler 5 is equipped with eight and all is fan-shaped around 3 axle centers of oil blanket structure altogether.

Preferably, the top end of the oil seal structure 3 is provided with a P plate 6, and the top of the P plate 6 is fixedly arranged on the inner wall of the shell of the full-density motor 1.

Preferably, the fan housing 4 is tightly connected with the outer wall of the tuyere of the fully-sealed motor 1.

Preferably, a protection plate 8 is arranged between the oil seal structure 3 and the main body of the fully-sealed motor 1, and the bottom of the protection plate 8 is fixedly arranged above the fully-sealed motor 1.

Preferably, a bracket 9 is installed at the bottom of the protection plate 8, the bracket 9 abuts against the outer shell of the motor 1 and is connected with the top surface of the protection plate 8.

Preferably, a base 10 is arranged at the bottom of the spoiler 5, a plurality of screws 11 are mounted on the base 10, and the number of the screws 11 is multiple.

Preferably, the unilateral clearance between the wind shield 4 and the sliding bearing 2 is 2-3 mm.

The utility model has the advantages that: effectively solve the oil leak of slide bearing because of outer fan leads to the pressure differential problem.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a structural diagram of the oil seal structure according to the present invention;

in the figure, the position of the upper end of the main shaft,

1. a fully-closed motor; 2. a sliding bearing; 3. an oil seal structure; 4. a fan housing; 5. a spoiler; 6. a P plate; 7. an outer fan; 8. a protection plate; 9. a bracket; 10. a base; 11. and (4) screws.

Detailed Description

In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.

As shown in fig. 1-2, the present invention comprises: full dense motor 1, slide bearing 2, locate slide bearing 2 right side oil blanket structure 3, locate slide bearing 2 left have outer fan 7 and locate the fan housing 4 in 1 left side wind gap of full dense motor, 3 tops of oil blanket structure are equipped with spoiler 5, and spoiler 5 is equipped with eight and all is fan-shaped around 3 axle centers of oil blanket structure altogether.

In this embodiment, preferably, the top end of the oil seal structure 3 is provided with a P plate 6, and the top of the P plate 6 is fixedly arranged on the inner wall of the housing of the full-density motor 1.

In this embodiment, it is preferable that the wind shield 4 is tightly engaged with the outer wall of the tuyere of the fully-sealed motor 1.

In this embodiment, a protection plate 8 is preferably disposed between the oil seal structure 3 and the main body of the hermetically sealed motor 1, and the bottom of the protection plate 8 is fixedly mounted above the hermetically sealed motor 1.

In this embodiment, preferably, the bottom of the protection plate 8 is provided with a bracket 9, the bracket 9 abuts against the outer shell of the motor 1, and the top surface of the protection plate 8 is connected downwards.

In this embodiment, a base 10 is preferably provided at the bottom of the spoiler 5, a plurality of screws 11 are preferably attached to the base 10, and the screws 11 are preferably provided.

In the present embodiment, the gap between the wind shield 4 and the sliding bearing 2 is preferably 2 to 3 mm.

In use, the oil seal of the sliding bearing is added with a spoiler design (figure 2) to reduce the turbulent flow condition, and the oil seal is fixed on the bearing seat by a bolt; the design of the fan cover protective cover is optimized, the gap between the protective cover and the shaft is reduced, the single-side gap is ensured to be 2-3mm, and the air quantity blown in from the gap is reduced.

The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.

Claims

1. The utility model provides a totally-enclosed motor sliding shaft link up department seal structure, its characterized in that, including totally-enclosed motor (1), slide bearing (2), locate oil seal structure (3) on slide bearing (2) right side, locate slide bearing (2) left fan (7) and locate fan housing (4) in totally-enclosed motor (1) left side wind gap, oil seal structure (3) top is equipped with spoiler (5), spoiler (5) are equipped with eight and all are fan-shaped around oil seal structure (3) axle center altogether.

2. The sealing structure for the through part of the sliding shaft of the full-density motor according to claim 1, wherein: a P plate (6) is installed at the top end of the oil seal structure (3), and the top of the P plate (6) is fixedly installed on the inner wall of a shell of the full-density motor (1).

3. The sealing structure for the through part of the sliding shaft of the full-density motor according to claim 1, wherein: the fan cover (4) is tightly connected with the outer wall of the air inlet of the full-sealed motor (1).

4. The sealing structure for the through part of the sliding shaft of the full-density motor according to claim 1, wherein: a protection plate (8) is arranged between the oil seal structure (3) and the main body of the fully-sealed motor (1), and the bottom of the protection plate (8) is fixedly arranged above the fully-sealed motor (1).

5. The sealing structure for the penetration of the sliding shaft of the full-density motor according to claim 4, wherein: bracket (9) are installed to protection shield (8) bottom, support full-density motor (1) shell on bracket (9), connect protection shield (8) top surface down.

6. The sealing structure for the through part of the sliding shaft of the full-density motor according to claim 1, wherein: the spoiler is characterized in that a base (10) is arranged at the bottom of the spoiler (5), screws (11) are mounted on the base (10), and the screws (11) are arranged in a plurality.

7. The sealing structure for the through part of the sliding shaft of the full-density motor according to claim 1, wherein: the unilateral clearance between the fan cover (4) and the sliding bearing (2) is 2-3 mm.