CN217463215U

CN217463215U - New forms of energy in-wheel motor prevents muddy water sealing member

Info

Publication number: CN217463215U
Application number: CN202123022817.3U
Authority: CN
Inventors: 潘人政
Original assignee: Kunshan Maoshun Sealing Products Industrial Co ltd
Current assignee: Kunshan Maoshun Sealing Products Industrial Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-09-20
Anticipated expiration: 2031-12-03

Abstract

The utility model relates to a new forms of energy in-wheel motor prevents muddy water sealing member, including outer oil blanket and axle sleeve, and outer oil blanket and axle sleeve installation between motor casing and axle, outer oil blanket includes outer skeleton, and the first rubber coating that bonds on the outer skeleton is provided with the main lip that blocks outside muddy water and foreign matter and avoids the inside foreign matter of motor to destroy the vice lip of main lip, and the spring ditch of seting up on the main lip is used for the installation of spring; the design of the multiple sealing lips solves the defects of insufficient sealing capability and short service life of the existing design for preventing muddy water; due to the application of the shaft sleeve, the abrasion of the shaft is avoided, and the surface processing requirement of the shaft is reduced; when possible replacement occurs in long-term use, only the sealing element needs to be replaced, and resources are saved.

Description

New forms of energy in-wheel motor prevents muddy water sealing member

Technical Field

The utility model relates to a motor processing technology field especially relates to a new forms of energy in-wheel motor prevents muddy water sealing member.

Background

The sealing member is located between the shell and the rotating shaft of the new energy hub motor, and plays a role in waterproof sealing.

The existing design has the defects of insufficient sealing capability and short service life; meanwhile, the shaft is easy to wear, and the surface processing requirement of the shaft is high; meanwhile, the whole body needs to be replaced after long-time use, so that resource waste is caused; compare in traditional wheel hub, new forms of energy wheel hub inner structure is more complicated, and the sealing member size is also bigger, and corresponding sealing member is far less than traditional wheel hub with ground distance, and this has just brought out higher requirement to the waterproof nature ability of sealing member.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problems that the mud-proof sealing piece of the new energy hub motor is provided, and the defects of insufficient mud-proof sealing capability and short service life of the existing design are solved; meanwhile, the shaft is easy to wear, and the surface processing requirement of the shaft is high; meanwhile, the whole body needs to be replaced after long-time use, which causes the technical problem of resource waste.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a new energy hub motor mud-proof water sealing piece comprises an outer oil seal and a shaft sleeve, wherein the outer oil seal and the shaft sleeve are installed between a motor shell and a shaft, the outer oil seal comprises an outer framework, a first rubber coating is bonded on the outer framework, a main lip for blocking external mud and foreign matters and an auxiliary lip for preventing the foreign matters in the motor from damaging the main lip are arranged on the first rubber coating, and a spring groove formed in the main lip is used for installing a spring;

the shaft sleeve comprises an inner framework, a second rubber coating is bonded on the inner framework, an inner convex ring and a cross flange which are prevented from sliding relative to the shaft are arranged on the inner side of the second rubber coating, and a first dust lip and a second dust lip which are used for preventing muddy water from entering the inner portion are arranged on the outer side of the second rubber coating.

Preferably, the outer framework is provided with a riveting device for integrating the outer oil seal and the shaft sleeve.

Preferably, the first adhesive coating is provided with a wave-shaped outer convex ring and a notch tooth for positioning when a product is molded.

Preferably, the second adhesive tape is provided with a limiting block, and the limiting block is in contact with the shell.

Preferably, lubricating grease is smeared between the auxiliary lip and the inner framework, between the first dustproof lip and the second dustproof lip and around the main lip.

Preferably, chamfers are formed in the first adhesive wrapping body and the second adhesive wrapping body.

The utility model has the advantages that: the design of the multiple sealing lips solves the defects of insufficient sealing capability and short service life of the existing design for preventing muddy water;

due to the application of the shaft sleeve, the abrasion of the shaft is avoided, and the surface processing requirement of the shaft is reduced;

when possible replacement occurs in long-term use, only the sealing element needs to be replaced, and resources are saved.

Drawings

FIG. 1 is an assembly view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

Illustration of the drawings:

1. an outer oil seal; 2. a shaft sleeve; 3. an outer skeleton; 4. first encapsulation; 5. an outer convex ring; 6. tooth engraving; 7. the minor lip; 8. a main lip; 9. a spring groove; 10. a spring; 11. an inner skeleton; 12. second encapsulation; 13. an inner collar; 14. a cross flange; 15. a limiting block; 16. a first dust lip; 17. a second dust lip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Specific examples are given below.

Referring to fig. 1 and 2, a new energy in-wheel motor mud-proof sealing member comprises an outer oil seal 1 and a shaft sleeve 2, wherein the outer oil seal 1 and the shaft sleeve 2 are installed between a motor shell and a shaft, the outer framework 3 is provided with a riveting for integrating the outer oil seal 1 and the shaft sleeve 2 and blocking large-particle foreign matters, the outer oil seal 1 comprises an outer framework 3, a first coating 4 is bonded on the outer framework 3, the first coating 4 is provided with a wave-shaped outer convex ring 5 and a notch 6 for positioning during product molding, the outer diameter design of the combination of the wave-shaped coating and metal increases the stability of the oil seal under vibration and meets the sealing performance, the notch 6 is used for positioning during product molding, the first coating 4 is provided with a main lip 8 for blocking external mud and foreign matters and an auxiliary lip 7 for preventing the foreign matters possibly generated during the operation and assembly of the motor from damaging the main lip 8, a spring groove 9 arranged on the main lip 8 is used for installing a spring 10, the spring 10 provides a certain radial force to increase the sealing performance;

axle sleeve 2 includes inner frame 11, it has second coating 12 to bond on the inner frame 11, be provided with spacing stopper 15 on the second coating 12, and stopper 15 and casing contact, avoid axle sleeve 2 to rotate simultaneously when with the excessive friction of contact position, second coating 12 inboard be provided with avoid with between the axle relative slip's inner collar 13 and cross flange 14, the outside is provided with on second coating 12 and prevents that muddy water from getting into inside first dustproof lip 16 and second dustproof lip 17, promote the oil blanket life-span.

Lubricating grease is smeared between the auxiliary lip 7 and the inner framework 11, between the first dustproof lip 16 and the second dustproof lip 17 and around the main lip 8, and the oil seal has a lubricating effect in rotation to slow down abrasion.

Chamfers have all been seted up on first rubber coating 4 and the second rubber coating 12, rubber extrusion force when the preceding chamfer of first rubber coating 4 is used for releasing the installation, and outer oil blanket 1 when the preceding chamfer of second rubber coating 12 is used for the combination is led just, and extrusion force when the back chamfer of second rubber coating 12 is used for releasing the installation, and the rubber coating design has better corrosion resistance.

The design of the multiple sealing lips solves the defects of insufficient sealing capability and short service life of the existing design for preventing muddy water;

due to the application of the shaft sleeve 2, the abrasion of the shaft is avoided, and the surface processing requirement of the shaft is reduced; when possible replacement occurs in long-term use, only the sealing element needs to be replaced, and resources are saved.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The mud-proof water sealing piece of the new energy hub motor is characterized by comprising an outer oil seal (1) and a shaft sleeve (2), wherein the outer oil seal (1) and the shaft sleeve (2) are installed between a motor shell and a shaft, the outer oil seal (1) comprises an outer framework (3), a first rubber coating (4) is wrapped on the outer framework (3), a main lip (8) for blocking external mud and foreign matters and an auxiliary lip (7) for preventing the foreign matters in the motor from damaging the main lip (8) are arranged on the first rubber coating (4), and a spring groove (9) formed in the main lip (8) is used for installing a spring (10);

the shaft sleeve (2) comprises an inner framework (11), a second rubber coating (12) is bonded on the inner framework (11), an inner convex ring (13) and a cross flange (14) which avoid relative sliding between the second rubber coating (12) and the shaft are arranged on the inner side of the second rubber coating (12), and a first dust lip (16) and a second dust lip (17) which prevent muddy water from entering the inner portion are arranged on the outer side of the second rubber coating (12).

2. The new energy hub motor mud-proof sealing piece as claimed in claim 1, characterized in that the outer frame (3) is provided with a riveting for integrating the outer oil seal (1) and the shaft sleeve (2).

3. The new energy hub motor watertight seal according to claim 1, characterized in that the first rubber coating (4) is provided with a wave-shaped outer convex ring (5) and a notch (6) for positioning when a product is formed.

4. The new energy hub motor watertight seal according to claim 1, characterized in that a limiting stopper (15) is arranged on the second rubber coating (12), and the limiting stopper (15) is in contact with the housing.

5. The new energy hub motor mud-proof and water-proof sealing piece as claimed in claim 1, wherein lubricating grease is smeared between the auxiliary lip (7) and the inner frame (11), between the first dust lip (16) and the second dust lip (17) and around the main lip (8).

6. The new energy hub motor watertight seal according to claim 1, characterized in that the first rubber coating (4) and the second rubber coating (12) are both provided with chamfers.