CN201556997U - A kind of waterproof sealing ring of motor - Google Patents

Abstract

The utility model discloses a waterproof sealing circle of motor, constitute by installation department (1) of front end and manger plate portion (4) of rear end, installation department (1) the inside of front end sets up cavity (11) and nestification in bearing room (3) outside of motor end cover (2), set up shaft hole (12) that can supply pivot (6) to pass through in the middle of manger plate portion (4) of rear end, cavity (11) and shaft hole (12) intercommunication, manger plate portion (4) of rear end radially toward opening outward gradually, the lateral surface of manger plate portion (4) and the junction of the bottom face of installation department (1) of front end form recess (5). The sealing ring is simple in structure, easy to install, low in manufacturing cost and ideal in waterproof effect, radial flow water is effectively prevented from flowing to the motor rotating shaft and entering the motor bearing chamber, the motor bearing is protected, and the working reliability of the motor is further ensured.

Description

A kind of waterproof sealing ring of motor

Technical field:

The utility model relates to a waterproof sealing ring of a motor.

Background technique:

In the traditional motor, there is a gap between the motor shaft and the end cover, and a dustproof and waterproof sealing ring needs to be installed. However, some of the existing sealing rings have poor sealing performance, and some of them are designed to prevent dust or water from penetrating into the motor. Setting up a complex structure will affect the normal operation of the motor.

A popular sealing ring on the market uses a plastic cover as a sealed waterproof and dustproof structure. The plastic cover is tightly set on the shaft and rotates with the shaft, but the waterproof effect is not perfect, and it is easy to age and damage; there are also labyrinth structures or other more Complicated sealing structure, complex manufacturing process, very inconvenient installation and high cost.

Invention content:

In order to solve the above problems, the purpose of this utility model is to provide a waterproof sealing ring of a motor with simple structure, easy installation and low manufacturing cost, and ideal waterproof effect.

The purpose of this utility model is achieved through the following technical solutions.

A waterproof sealing ring for a motor, which is composed of a front-end installation part and a rear-end water-retaining part. The front-end installation part is provided with a cavity and nested outside the bearing chamber of the motor end cover, and the middle of the rear-end water-retention part is provided with a The shaft hole through which the rotating shaft passes, the cavity communicates with the shaft hole, the water retaining part at the rear end gradually expands radially outward, and a groove is formed at the joint between the outer surface of the water retaining part and the bottom end surface of the front mounting part.

The mounting portion at the front end described above is cylindrical.

The outer surface of the water retaining part at the above-mentioned rear end is trumpet-shaped.

The inner surface of the water retaining portion mentioned above may be a cylindrical surface or a conical surface.

The above-mentioned installation part and the water retaining part are integrally injection-molded with rubber.

The beneficial effects of the utility model are: 1) the structure is simple, the installation is easy, the manufacturing cost is low, and it is made of rubber, which has certain elasticity, is not easy to be damaged, and has a long service life; 2) the rear end of the sealing ring forms a flared water retaining ring A groove is formed at the junction of the outer surface of the water retaining part and the bottom end surface of the mounting part of the front end, and the radial flow water is collected in the groove and discharged. The radial waterproof effect is ideal, which effectively prevents the radial flow water from moving along the motor shaft. It flows into the motor to protect the motor, thereby ensuring the reliability of the motor.

Description of drawings:

Fig. 1 is the first structure schematic diagram of the sealing ring in the utility model.

FIG. 2 is a schematic diagram of the application structure of FIG. 1 .

Fig. 3 is a schematic diagram of the second structure of the sealing ring in the present invention.

FIG. 4 is a schematic diagram of the application structure of FIG. 3 .

Detailed ways:

The utility model will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

Example 1

As shown in Figure 1 and Figure 2, a waterproof sealing ring for a motor is composed of a front-end installation part 1 and a rear-end water retaining part 4. A cavity 11 is provided in the front-end installation part 1 and nested in the motor end cover 2. Outside the bearing chamber 3, the water retaining part 4 at the rear end is provided with a shaft hole 12 for the shaft 6 to pass through. A groove 5 is formed at the junction of the outer surface of the front end and the bottom end surface of the mounting part 1 of the front end.

The mounting part 1 at the front end is cylindrical, the outer surface of the water retaining part 4 at the rear end is trumpet-shaped, the inner surface of the water retaining part 4 is a cylindrical surface, and the mounting part 1 and the water retaining part 4 are integrally injection molded with rubber.

Example 2

As shown in Figure 3 and Figure 4, a waterproof sealing ring for a motor is composed of a front-end installation part 1 and a rear-end water-retaining part 4, and a cavity 11 is set inside the front-end installation part 1 and nested in the motor end cover 2 Outside the bearing chamber 3, the water retaining part 4 at the rear end is provided with a shaft hole 12 for the shaft 6 to pass through. A groove 5 is formed at the junction of the outer surface of the front end and the bottom end surface of the mounting part 1 of the front end. The mounting part 1 and the water retaining part 4 are integrally injection-molded with rubber.

The mounting part 1 at the front end is cylindrical, the outer surface of the water retaining part 4 at the rear end is trumpet-shaped, and the inner surface of the water retaining part 4 is a conical surface, which can reduce the consumption of materials and reduce the manufacturing cost.

Claims (5)

1. the waterproof grommet of a motor, form by the installation portion (1) of front end and the retaining section (4) of rear end, the installation portion of front end (1) the inside is provided with cavity (11) and is nested in bearing chamber (3) outside of electric motor end cap (2), the axis hole (12) that setting can supply rotating shaft (6) to pass through in the middle of the retaining section of rear end (4), cavity (11) is communicated with axis hole (12), it is characterized in that: radially open gradually outward the retaining section of rear end (4), and the joint of the bottom face of the installation portion (1) of the lateral surface of retaining section (4) and front end forms groove (5).

2. the waterproof grommet of a kind of motor according to claim 1, it is characterized in that: the installation portion of front end (1) is cylindric.

3. the waterproof grommet of a kind of motor according to claim 1 and 2, it is characterized in that: the retaining section of rear end (4) lateral surface is horn-like.

4. the waterproof grommet of a kind of motor according to claim 1 and 2, it is characterized in that: the medial surface of retaining section (4) can be the face of cylinder, also can be taper seat.

5. the waterproof grommet of a kind of motor according to claim 1 and 2, it is characterized in that: the rubber integrated injection molding is used in installation portion (1) and retaining section (4).

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