CN212785063U - Oil blanket heat radiation structure and motor - Google Patents

Abstract

The utility model discloses an oil blanket heat radiation structure, including pivot and rotation fit in the oil blanket of pivot periphery, be provided with in the pivot and be located the fin of oil blanket one side. When the relative oil blanket of pivot was rotatory, the fin was rotatory together and produced the air current in oil blanket one side along with the pivot, and the oil blanket further gives off the heat to the fin with the partial heat conduction that pivot spin friction produced, along with the rotation of fin, the air current of constantly producing can be with the heat in the air to reduce the heat of conduction to other spare parts such as pivot upper bearing, avoid oil blanket and relevant spare part temperature rise too high, improve the operational reliability of epaxial spare part, increase of service life. The utility model also discloses a motor of including above-mentioned oil blanket heat radiation structure.

Description

Oil blanket heat radiation structure and motor

Technical Field

The utility model relates to the technical field of machinery, especially, relate to an oil blanket heat radiation structure and a motor.

Background

The motor oil seal is a sealing part which is arranged on a motor fixing structure and realizes dynamic sealing of a motor rotating part, for example, the motor oil seal is arranged on a motor shell, a sealing lip of the oil seal is contacted with a rotor shaft, a certain interference magnitude is generally arranged between the sealing lip and a motor shaft, and the dynamic sealing characteristic of the internal structure of the motor is ensured through the sealing matching structure.

In a conventional motor, especially in a disc motor, the rotation speed of a motor shaft is generally high, and the motor shaft and an oil seal rotate relatively and generate heat by friction, so that the temperature rise of a lip position of a sealing lip of the oil seal is higher than that of other positions. If the temperature rise of the sealing lip is too high, heat is conducted to relevant parts such as a bearing on the shaft, the temperature rise of the bearing is too high, the service life of the bearing is further shortened rapidly, and if the bearing fails, the motor fails. Therefore, in order to ensure the reliability of the long-term operation of the motor, the temperature rise of the oil seal lip needs to be controlled within a reasonable range.

Therefore, how to effectively control the temperature rise of the oil seal is a technical problem which needs to be solved by the technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an oil blanket heat radiation structure, this structure can prevent effectively that the oil blanket temperature rise is too high, and then improves the operational reliability of epaxial spare part, increase of service life. Another object of the utility model is to provide an including above-mentioned oil blanket heat radiation structure's motor.

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

the utility model provides an oil blanket heat radiation structure, includes pivot and swivelling fit in the oil blanket of pivot periphery, be provided with in the pivot and be located the fin of oil blanket one side.

Preferably, the heat sink is an annular structure that is fixed around the periphery of the rotating shaft.

Preferably, the periphery of the radiating fin is provided with a plurality of radiating teeth.

Preferably, the periphery of the heat radiating fin is provided with a plurality of fan blades.

Preferably, the body of the heat dissipation fin is provided with a plurality of heat dissipation holes distributed along the circumferential direction, and the heat dissipation holes axially penetrate through the heat dissipation fin.

Preferably, the oil seal comprises a sealing lip contacting with the periphery of the rotating shaft, and a heat dissipation gap is reserved between the heat dissipation fin and the sealing lip.

Preferably, the heat sink is detachably fixed to the rotation shaft.

Preferably, the heat conductivity of the heat sink is greater than or equal to that of the rotating shaft.

Preferably, the rotating shaft is further provided with a bearing, and the radiating fins and the bearing are respectively positioned on two sides of the oil seal.

The utility model provides an oil blanket heat radiation structure, including pivot and rotation fit in the oil blanket of pivot periphery, be provided with in the pivot and be located the fin of oil blanket one side. When the relative oil blanket of pivot was rotatory, the fin was rotatory together and produced the air current in oil blanket one side along with the pivot, and the oil blanket further gives off the heat to the fin with the partial heat conduction that pivot spin friction produced, along with the rotation of fin, the air current of constantly producing can be with the heat in the air to reduce the heat of conduction to other spare parts such as pivot upper bearing, avoid oil blanket and relevant spare part temperature rise too high, improve the operational reliability of epaxial spare part, increase of service life.

The utility model also provides a motor, include as above oil blanket heat radiation structure. The derivation process of the beneficial effect of the motor is substantially similar to the derivation process of the beneficial effect brought by the oil seal heat dissipation structure, and therefore the description is omitted here.

Preferably, the motor is a disc motor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an oil seal heat dissipation structure in an embodiment of the present invention.

The meaning of the reference symbols in fig. 1 is as follows:

1-machine shell, 2-oil seal, 3-sealing lip, 4-rotating shaft, 5-heat dissipation hole, 6-heat dissipation fin, 7-heat dissipation tooth and 8-bearing.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic view of an oil seal heat dissipation structure according to an embodiment of the present invention.

The utility model provides an oil blanket heat radiation structure, including pivot 4 and swivelling joint in the oil blanket 2 of 4 peripheries of pivot, be provided with the fin 6 that is located 2 one sides of oil blanket in the pivot 4.

When pivot 4 is rotatory for oil blanket 2 relatively, fin 6 follows pivot 4 and rotates together and produce the air current in oil blanket 2 one side, oil blanket 2 and the partial heat conduction to fin 6 that 4 spin friction of pivot produced, along with the rotation of fin 6, the air current that constantly produces can further give off the heat in the air, thereby reduce the heat of other spare parts such as conduction bearing 8 on the pivot 4, avoid oil blanket 2 and other epaxial spare parts temperature rise too high, improve the operational reliability of epaxial spare part, and the service life is prolonged.

It should be noted that the heat sink 6 in the present embodiment can be designed in various structures, such as an annular heat sink structure, or a plurality of fin structures surrounding the rotating shaft 4, etc. Preferably, the heat sink 6 is an annular structure fixedly surrounding the outer periphery of the rotating shaft 4.

Preferably, the outer circumference of the heat sink 6 is provided with a number of heat dissipating teeth 7. In the process that the radiating fins 6 rotate along with the rotating shaft 4, the radiating teeth 7 can accelerate the movement of air flow, so that heat is conducted to the air environment more quickly, and the radiating efficiency is improved.

In another preferred embodiment, the heat sink 6 has a plurality of fan blades on its outer periphery. The function of the fan blade on the heat dissipation teeth 7 is similar, and the description is omitted.

Preferably, the body of the heat sink 6 is provided with a plurality of heat dissipation holes 5 distributed along the circumferential direction, and the heat dissipation holes 5 axially penetrate through the heat sink 6. The heat radiation holes 5 can make the heat between the oil seal 2 and the heat radiation fin 6 more easily radiated to the other side of the heat radiation fin 6, thereby improving the heat radiation efficiency.

Preferably, the oil seal 2 includes a seal lip 3 in contact with the outer periphery of the rotating shaft 4, and a heat dissipation gap is reserved between the heat dissipation fins 6 and the seal lip 3. In the process that the radiating fins 6 rotate along with the rotating shaft 4, the radiating fins 6 cannot be in contact friction with the sealing lip 3 of the oil seal 2, and more heat is prevented from being generated.

Preferably, the heat sink 6 is detachably fixed to the rotation shaft 4. Specifically, this scheme can be through interference fit mode or through the mode of connecting piece fastening, installs fin 6 in 4 peripheries of pivot, and the user can change fin 6 according to different use occasions, satisfies different heat dissipation demands.

Preferably, the heat conductivity of the heat sink 6 is equal to or greater than the heat conductivity of the rotating shaft 4. So set up, can further improve the radiating efficiency, wherein, metal material such as the higher copper sheet of coefficient of thermal conductivity, aluminum sheet or silver piece can be adopted to fin 6.

Preferably, the rotating shaft 4 is further provided with a bearing 8, and the heat sink 6 and the bearing 8 are respectively positioned at two sides of the oil seal 2. So set up, avoid the heat that fin 6 gived off to blow to bearing 8 to further avoid bearing 8 high temperature rise.

The utility model also provides a motor, include as above oil blanket heat radiation structure, at this moment, pivot 4 is the motor shaft, and oil blanket 2 is the motor oil blanket, and is concrete, and the motor is still including the casing 1 that is used for the fixed mounting motor oil blanket. The derivation process of the beneficial effect of the motor is substantially similar to the derivation process of the beneficial effect brought by the oil seal heat dissipation structure, and therefore the description is omitted here.

Preferably, the motor is a disc motor.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. The utility model provides an oil blanket heat radiation structure, its characterized in that, including pivot (4) and swivelling fit in oil blanket (2) of pivot (4) periphery, be provided with in pivot (4) and be located fin (6) of oil blanket (2) one side.

2. The oil seal heat dissipation structure of claim 1, wherein the heat dissipation fin (6) is an annular structure fixedly surrounding the outer periphery of the rotating shaft (4).

3. An oil seal heat dissipation structure as defined in claim 2, wherein the heat dissipation fins (6) are provided at their outer peripheries with a plurality of heat dissipation teeth (7).

4. The oil seal heat dissipation structure as defined in claim 2, wherein the heat sink (6) is provided with a plurality of fan blades at its periphery.

5. The oil seal heat dissipation structure of claim 2, wherein the body of the heat dissipation fin (6) is provided with a plurality of heat dissipation holes (5) distributed along the circumferential direction, and the heat dissipation holes (5) axially penetrate through the heat dissipation fin (6).

6. The oil seal heat dissipation structure according to claim 1, wherein the oil seal (2) includes a seal lip (3) that contacts the outer periphery of the rotating shaft (4), and a heat dissipation gap is reserved between the heat dissipation fin (6) and the seal lip (3).

7. The oil seal heat dissipation structure according to claim 1, wherein the heat sink (6) is detachably fixed to the rotating shaft (4).

8. The oil seal heat dissipation structure according to claim 1, wherein the heat conductivity of the heat sink fin (6) is equal to or greater than the heat conductivity of the rotating shaft (4).

9. The oil seal heat dissipation structure according to any one of claims 1 to 8, wherein a bearing (8) is further mounted on the rotating shaft (4), and the heat sink (6) and the bearing (8) are respectively located on both sides of the oil seal (2).

10. An electric motor characterized by comprising the oil-sealed heat dissipation structure as recited in any one of claims 1 to 9.

11. The electric machine of claim 10, wherein the electric machine is a disc-type electric machine.

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