CN220775526U

CN220775526U - Sealing device for hub motor

Info

Publication number: CN220775526U
Application number: CN202322525815.9U
Authority: CN
Inventors: 汪国福
Original assignee: Nanjing Xunzheng Machinery Manufacturing Co ltd
Current assignee: Nanjing Xunzheng Machinery Manufacturing Co ltd
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2024-04-12
Anticipated expiration: 2033-09-18

Abstract

The utility model discloses a sealing device for a hub motor, which comprises a frame body, wherein an installation shaft is arranged at the axis of the frame body, sealing covers are arranged on two sides of the frame body and fixedly connected with the frame body through bolts, sealing gaskets are arranged on the outer walls of the sealing covers and are in tight contact with the frame body, and self-locking devices are arranged on the surfaces of the sealing covers at equal angles and correspond to the inner walls of the frame body. This a sealing device for in-wheel motor has reached sealed lid and has passed through bolt and framework fixed connection, and sealed outer wall that covers sets up sealed pad and with framework in close contact simultaneously, improves whole sealing performance, and sealed internal surface sets up self-locking device, and when in-wheel motor rotated at high speed, self-locking device work carries out the joint to the framework inner wall voluntarily, improves sealed lid and framework fixed stability, and then guarantees sealing performance, improves equipment life's purpose.

Description

Sealing device for hub motor

Technical Field

The present utility model relates to the field of in-wheel motors, and more particularly, to a sealing device for an in-wheel motor.

Background

The structure of vehicle can effectively be simplified to the wheel hub motor, but sets up wheel hub motor in the wheel is not protected, and wheel hub and ground distance are nearer, and the moisture that contacts more easily needs to carry out effectual waterproof protection to wheel hub motor to guarantee the normal operating of motor, waterproof not well can lead to the motor to damage or stop work, influences the use. At present, the current wheel hub motor seals, adopts the bolt to fix sealed lid and wheel hub framework generally, rotates at long-term high speed when wheel hub, leads to the bolt to drop easily, and then causes sealed lid to become flexible, and then influences sealing performance, can't satisfy the user demand.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems that the prior hub motor is sealed in the prior art, a sealing cover and a hub frame body are usually fixed by bolts, when a hub rotates at a high speed for a long time, the bolts are easy to fall off, so that the sealing cover is loose, the sealing performance is influenced, and the use requirement cannot be met.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a sealing device for in-wheel motor, includes the framework, the axle center department of framework is provided with the installation axle, the both sides of framework are provided with sealed lid, sealed lid passes through bolt and framework fixed connection, sealed outer wall of lid is provided with sealed the pad, sealed pad and framework in close contact, the surface equiangle of sealed lid is provided with self-locking device, self-locking device corresponds with the inner wall of framework.

Preferably, the sealing cover is disc-shaped.

Preferably, the number of the self-locking devices is six.

Preferably, the self-locking device comprises a fixed block, a spring, a fixed frame, a metal ball, a push rod and a clamping block, wherein the fixed block is fixedly connected with the sealing cover, the outer wall of the fixed block is fixedly connected with the spring, the fixed block is fixedly connected with the fixed frame through the spring, the metal ball is fixedly connected with the inside of the fixed frame, the surface of the fixed frame is fixedly connected with the push rod, the spring is sleeved with the push rod, the push rod is in sliding connection with the fixed block, the end part of the push rod is fixedly connected with the clamping block, and the clamping block corresponds to the inner wall of the frame body.

Preferably, the metal balls are made of stainless steel.

Preferably, the cross section of the push rod is rectangular.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

1. through sealed lid and framework fixed connection, the outer wall of sealed lid sets up sealed pad and with framework in close contact simultaneously, improves whole sealing performance, and the internal surface of sealed lid sets up self-locking device, and when in-wheel motor rotated at high speed, self-locking device worked, carries out the joint to the framework inner wall voluntarily, improves sealed lid and framework fixed stability, and then guarantees sealing performance, improve equipment life.

Drawings

FIG. 1 is a schematic view of the overall external structure of the present utility model;

FIG. 2 is a schematic overall elevational view of the present utility model;

FIG. 3 is a schematic diagram of the overall internal structure of the present utility model;

fig. 4 is a schematic view of a partial enlarged structure at a of fig. 2 according to the present utility model.

The reference numerals in the figures illustrate:

1. a frame; 2. a mounting shaft; 3. sealing cover; 4. a sealing gasket; 5. a self-locking device; 51. a fixed block; 52. a spring; 53. a fixed frame; 54. a metal ball; 55. a push rod; 56. and (5) clamping blocks.

Detailed Description

The drawings in the embodiments of the present utility model will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only a few embodiments of the present utility model; but not all embodiments. Based on the embodiments in the present utility model; all other embodiments obtained by those skilled in the art without undue burden; all falling within the scope of the present utility model.

Example 1:

referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a sealing device for in-wheel motor, includes framework 1, and the axle center department of framework 1 is provided with installation axle 2, and the both sides of framework 1 are provided with sealed lid 3, and sealed lid 3 passes through bolt and framework 1 fixed connection, and sealed outer wall of lid 3 is provided with sealed pad 4, sealed pad 4 and framework 1 in close contact with, and the surface equiangle of sealed lid 3 is provided with self-locking device 5, and self-locking device 5 corresponds with the inner wall of framework 1. The sealed lid 3 passes through bolt and framework 1 fixed connection, and the outer wall of sealed lid 3 sets up sealed 4 and with framework 1 in close contact with simultaneously, improves whole sealing performance, and the internal surface of sealed lid 3 sets up self-locking device 5, and when in-wheel motor rotated at high speed, self-locking device 5 work carries out the joint to framework 1 inner wall voluntarily, improves sealed lid 3 and framework 1 fixed stability, and then guarantees sealing performance, improvement equipment life.

Wherein the sealing cover 3 is disc-shaped.

Wherein the number of the self-locking devices 5 is six. The constant angle sets up a plurality of self-locking device 5, improves sealed lid 3 and the fixed stability of framework 1, and then guarantees sealing performance.

Wherein, self-locking device 5 includes fixed block 51, spring 52, fixed frame 53, metal ball 54, push rod 55 and fixture block 56, fixed block 51 and sealed lid 3 fixed connection, the outer wall fixedly connected with spring 52 of fixed block 51, fixed block 51 passes through spring 52 fixedly connected with fixed frame 53, the inside fixedly connected with metal ball 54 of fixed frame 53, the fixed surface of fixed frame 53 is fixedly connected with push rod 55, spring 52 cup joints with push rod 55, push rod 55 and fixed block 51 sliding connection, the tip fixedly connected with fixture block 56 of push rod 55, fixture block 56 corresponds with the inner wall of framework 1. When the hub motor rotates at a high speed, the metal ball 54 generates centrifugal force to drive the fixed frame 53 to move, the push rod 55 to move, the elastic potential energy of the spring 52 is increased, the clamping block 56 is driven to move, the clamping block 56 is clamped with the inner wall of the frame body 1, and then the fixing stability of the sealing cover 3 and the frame body 1 is improved.

Wherein the metal balls 54 are made of stainless steel. The service life is ensured.

Wherein the cross section of the push rod 55 is rectangular. So that the push rod 55 can only move horizontally and cannot deflect, and the movement stability of the clamping block 56 is improved.

The above; is only a preferred embodiment of the present utility model; the scope of the utility model is not limited in this respect; any person skilled in the art is within the technical scope of the present disclosure; equivalent substitutions or changes are made according to the technical proposal of the utility model and the improved conception thereof; are intended to be encompassed within the scope of the present utility model.

Claims

1. Sealing device for an in-wheel motor, comprising a frame (1), characterized in that: the novel sealing structure is characterized in that an installation shaft (2) is arranged at the axis of the frame body (1), sealing covers (3) are arranged on two sides of the frame body (1), the sealing covers (3) are fixedly connected with the frame body (1) through bolts, sealing gaskets (4) are arranged on the outer walls of the sealing covers (3), the sealing gaskets (4) are in tight contact with the frame body (1), self-locking devices (5) are arranged on the surfaces of the sealing covers (3) at equal angles, and the self-locking devices (5) correspond to the inner walls of the frame body (1).

2. A sealing device for an in-wheel motor according to claim 1, wherein: the sealing cover (3) is disc-shaped.

3. A sealing device for an in-wheel motor according to claim 1, wherein: the number of the self-locking devices (5) is six.

4. A sealing device for an in-wheel motor according to claim 3, wherein: the self-locking device comprises a fixed block (51), a spring (52), a fixed frame (53), a metal ball (54), a push rod (55) and a clamping block (56), wherein the fixed block (51) is fixedly connected with a sealing cover (3), the outer wall of the fixed block (51) is fixedly connected with the spring (52), the fixed frame (53) is fixedly connected with the fixed block (51) through the spring (52), the metal ball (54) is fixedly connected with the inside of the fixed frame (53), the push rod (55) is fixedly connected with the surface of the fixed frame (53), the spring (52) is sleeved with the push rod (55), the push rod (55) is in sliding connection with the fixed block (51), the end part of the push rod (55) is fixedly connected with the clamping block (56), and the clamping block (56) corresponds to the inner wall of the frame body (1).

5. A sealing device for an in-wheel motor according to claim 4, wherein: the metal balls (54) are made of stainless steel.

6. A sealing device for an in-wheel motor according to claim 4, wherein: the cross section of the push rod (55) is rectangular.