CN218326204U - Motor shaft extension end mechanical sealing device with cooling function - Google Patents

Abstract

The utility model discloses a mechanical sealing device with a cooling function for the shaft extension end of a motor, which comprises a device body; the device body is arranged at the shaft extension end of the motor and consists of a static ring, a static sealing rubber sleeve on the excircle of the static ring, a dynamic ring, a sealing rubber sleeve on the inner wall of the dynamic ring and a pressure spring; the static ring is fixed in an end cover hole of the motor, the sealing rubber sleeve on the inner wall of the moving ring is tightly attached to an output shaft of the motor into a whole, the pressure spring is arranged on the output shaft of the motor, and the plane of the static ring is tightly contacted with the plane of the moving ring under the action of the pressure of the spring so as to achieve the sealing effect. The utility model has the advantages that: mechanical seal is used in shaft extension end shaft hole seal, utilizes partial splash to sealed vice moisture of friction to play the lubricated effect of heat dissipation, and the water jet that the independent design inserts main water supply pipeline reaches better radiating effect, increases its life, reduces cost of maintenance, has thoroughly solved the vice high temperature of mechanical seal friction and has leaded to the problem of life weak point, sealed inefficacy.

Description

Motor shaft extension end mechanical sealing device with cooling function

Technical Field

The utility model relates to a motor field specifically is a motor shaft extension end mechanical seal device with cooling function.

Background

The motor is the most widely used power source in various fields. The common motor generally adopts a simple and effective air-cooling heat dissipation mode, and the mode has two disadvantages: firstly, the heat dissipation fan consumes mechanical power, which causes the efficiency of the motor to be reduced; secondly, the running noise is high, and along with the rapid promotion of energy conservation and emission reduction steps, the popularization and the use of the high-efficiency and low-noise motor are imperative.

Conventional motor is in having a large amount of splash water operational environment, and the skeleton oil blanket of fixing on the motor end cover of universal adoption avoids inside water gets into the motor, because the skeleton oil blanket is static, its lip department and axle excircle in close contact with and play the sealed effect, the high-speed rotation of motor shaft, skeleton oil blanket lip department produces frictional force and generates heat and constantly wearing and tearing, just can lose efficacy for a long time and can not reach sealed effect, water gets into inside electric leakage just can appear in the motor, burn out etc..

The device is characterized in that a water throwing ring, a water throwing sleeve and the like are fixed at a position close to the shaft hole of the end cover from the root of the output shaft of the motor, centrifugal force is generated on the device when the motor runs to throw water out of the shaft hole to prevent the water from entering the motor, and after the motor stops, residual water on a motor base can enter the motor from the shaft hole through gaps among the water throwing ring, the water throwing sleeve and the end cover, so that the sealing effect is not completely achieved.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the utility model provides a motor shaft extension end mechanical seal device with cooling function. The utility model discloses a following technical scheme realizes.

A motor shaft extension end mechanical sealing device with a cooling function comprises a device body;

the device body is arranged at the shaft extension end of the motor and consists of a static ring, a static sealing rubber sleeve on the excircle of the static ring, a dynamic ring, a sealing rubber sleeve on the inner wall of the dynamic ring and a pressure spring;

the static ring is fixed in an end cover hole of the motor, the sealing rubber sleeve on the inner wall of the moving ring is tightly attached to an output shaft of the motor into a whole, the pressure spring is arranged on the output shaft of the motor, and the plane of the static ring is tightly contacted with the plane of the moving ring under the action of the pressure of the spring so as to achieve the sealing effect.

Furthermore, the static ring of the friction pair of the device body is made of silicon carbide, and the moving ring is made of graphite.

The utility model has the advantages that: mechanical seal is used in shaft extension end shaft hole seal, utilizes partial splash to sealed vice moisture of friction to play the lubricated effect of heat dissipation, and the water jet that the independent design inserts main water supply pipeline reaches better radiating effect, increases its life, reduces cost of maintenance, has thoroughly solved the vice high temperature of mechanical seal friction and has leaded to the problem of life weak point, sealed inefficacy.

Drawings

Fig. 1 is a structural diagram of a mechanical sealing device for an extended end of a motor shaft with a cooling function according to the present invention.

Wherein, 1, end cover; 2. a stationary ring; 3. the excircle of the static ring is static and sealed with a rubber sleeve; 4. a moving ring; 5. the inner wall of the movable ring is sealed with a rubber sleeve; 6. a pressure spring; 7. an output shaft; 8. a bearing; 9. and mechanically sealing the cooling water inlet hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In specific embodiment 1, a mechanical sealing device for an extended end of a motor shaft with a cooling function includes a device body;

the device body is arranged at the shaft extension end of the motor and consists of a static ring 2, a static sealing rubber sleeve 3 of an excircle of the static ring, a moving ring 4, a sealing rubber sleeve 5 of an inner wall of the moving ring and a pressure spring 6, wherein the static ring 2 is fixed in an end cover hole of the motor, the sealing rubber sleeve 5 of the inner wall of the moving ring is tightly attached to an output shaft 7 of the motor into a whole, and the pressure spring 6 is arranged on the output shaft 7 of the motor and under the action of the pressure spring 6, and the plane of the static ring is tightly contacted with the plane of the moving ring to achieve a sealing effect.

The device body utilizes partial water sprayed to the sealing friction pair to play a role in heat dissipation and lubrication, and a water spray nozzle connected to a main water supply pipeline is independently designed to achieve a better heat dissipation effect, so that the service life of the device is prolonged, and the maintenance cost is reduced; the static ring of the friction pair of the mechanical sealing device is made of silicon carbide, the moving ring is made of graphite, the mechanical sealing device is high-temperature resistant and wear resistant, the heat dissipation performance is greatly enhanced through the specially arranged water inlet, and the service life is prolonged.

Mechanical seal is used in shaft extension end shaft hole seal, utilizes partial splash to sealed vice moisture of friction to play the lubricated effect of heat dissipation, and the water jet that the independent design inserts main water supply pipeline reaches better radiating effect, increases its life, reduces cost of maintenance, has thoroughly solved the vice high temperature of mechanical seal friction and has leaded to the problem of life weak point, sealed inefficacy.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (2)

1. The utility model provides a motor shaft extension end mechanical seal device with cooling function, includes the device body, its characterized in that:

the device body is arranged at the shaft extension end of the motor and consists of a static ring, a static sealing rubber sleeve on the excircle of the static ring, a dynamic ring, a sealing rubber sleeve on the inner wall of the dynamic ring and a pressure spring;

the static ring is fixed in an end cover hole of the motor, the sealing rubber sleeve on the inner wall of the moving ring is tightly attached to an output shaft of the motor into a whole, the pressure spring is arranged on the output shaft of the motor, and the plane of the static ring is tightly contacted with the plane of the moving ring under the action of the pressure of the spring so as to achieve the sealing effect.

2. The mechanical sealing device for the shaft extension end of the motor with the cooling function as claimed in claim 1, wherein: the static ring of the friction pair of the device body is made of silicon carbide, and the moving ring is made of graphite.

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