CN213754151U

CN213754151U - Oil-filled motor with improved oil chamber structure

Info

Publication number: CN213754151U
Application number: CN202021010027.6U
Authority: CN
Inventors: 孙涛; 滕晓; 莫巧平; 胡杰; 蔡艇; 胡健彬
Original assignee: Zhejiang Shimge Pump Co Ltd
Current assignee: Zhejiang Shimge Pump Co Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-07-20
Anticipated expiration: 2030-06-04

Abstract

The utility model relates to an improve oil charge motor of grease chamber structure, solve the technical scheme that can not cause the problem that mechanical seal can not fully lubricate and arouse in can not be to the inner chamber of grease chamber that prior art exists, adopt: set up the oil filler point on the end wall of grease chamber, the oil filler point sets up the peripheral position at the terminal surface, the wall thickness of the end wall of grease chamber is followed one side to other one side by thick gradual thinning, corresponding to the wall thickness of the position of oil filler point is thinnest, keeps away from the wall thickness of the position of oil filler point is thickest, promptly the internal surface of the end wall of grease chamber is the inclined plane, and slope grease chamber internal face is from keeping away from one side of oil filler point is to being close to the lopsidedness of oil filler point. The method has the following effects: the oil chamber structure is changed, the mechanical seal can be completely soaked in mechanical oil, the mechanical seal is prevented from being abraded due to insufficient lubrication, the motor water inlet faults and other faults caused by the mechanical seal mode are avoided, and the motor maintenance rate is reduced.

Description

Oil-filled motor with improved oil chamber structure

Technical Field

The utility model relates to an oil charge motor especially relates to an improve oil charge motor of grease chamber structure.

Background

Oil charge motor (like oil charge formula dive motor) because the motor intracavity portion need be full of mechanical oil, makes the mechanical seal of motor upper end (for placing upright usually during the use, and the grease chamber sets up in the upper end of motor) be in the oily environment always, avoids mechanical seal because lubricated not enough aggravation wearing and tearing, avoids leading to the appearance of faults such as the motor is intake because of the mechanical seal mode.

The inner surface of the end wall of the existing oil chamber, i.e. the end wall which is located at the upper end when in use, is perpendicular to the axis of the motor. The motor is oiling in to the grease chamber again after the evacuation, and under ideal condition, mechanical seal can soak in continuation oil, however, in actual operation, because there are various factors, grease chamber inner chamber upper end can have the air, and mechanical oil can not be full of the grease chamber, leads to the oil charge not enough, and mechanical seal often can not immerse completely in mechanical oil, influences mechanical oil to mechanical seal's lubricated effect, finally influences the motor and normally uses.

Disclosure of Invention

An object of the utility model is to solve the above-mentioned problem that prior art exists and provide an improve oil filled motor of grease chamber structure, change grease chamber structure, can make mechanical seal can soak completely in mechanical oil, avoid mechanical seal because lubricated not enough aggravation wearing and tearing, avoid leading to the appearance of trouble such as the motor is intake because of the mechanical seal mode, reduce the motor maintenance rate.

The above technical purpose of the present invention is mainly solved by the following technical solutions: an oil-filled motor with an improved oil chamber structure comprises a shell, an oil chamber arranged at one end of the shell, an upper baffle sleeve arranged in the shell, a stator core with windings and a rotor, a rotating shaft on the rotor passes through the upper baffle sleeve and extends into a shaft hole of the oil chamber, a mechanical seal is arranged on the rotating shaft, the mechanical seal is positioned in the shaft hole, the upper blocking sleeve isolates the stator core with the winding from the shell, the oil chamber is characterized in that an oil filling hole is arranged on the end wall of the oil chamber, the oil filling hole is arranged at the peripheral position of the end surface, the wall thickness of the end wall of the oil chamber is gradually thinned from one side to the other side, the wall thickness corresponding to the position of the oil filling hole is thinnest, and the wall thickness at the position far away from the oil filling hole is thickest, that is, the inner surface of the end wall of the oil chamber is an inclined surface, and the inner wall surface of the inclined oil chamber is inclined from the side far away from the oil filler hole to the side close to the oil filler hole. The oil chamber structure is changed, the mechanical seal can be completely soaked in mechanical oil, the mechanical seal is prevented from being abraded due to insufficient lubrication, the motor water inlet faults and other faults caused by the mechanical seal mode are avoided, and the motor maintenance rate is reduced. Specifically, the inner surface of the end wall of the oil changing chamber is an inclined surface which is inclined upwards, namely, the inner wall surface of the inclined oil chamber and the axis of the motor form an included angle. When the indoor oiling of motor evacuation (relatively speaking, often still can have the air) back to the oiliness, along with the joining of mechanical oil, mechanical oil removes the air to the upper end direction of grease chamber inner chamber, and the oil filler point can be reached air drainage to the internal face of slope grease chamber, discharges the air through the oil filler point, makes mechanical oil can fully surround mechanical seal, and mechanical seal soaks completely in continuing oil, obtains fine lubrication.

As further improvement and supplement to the above technical scheme, the utility model discloses a following technical measure: and the part of the inner wall surface of the inclined oil chamber, which corresponds to the outer end surface of the mechanical seal, is positioned outside the outer end surface of the mechanical seal. When the motor is used, the motor is in an upright state, and in order to be capable of fully infiltrating and continuing sealing, the position of the inner cavity of the oil chamber corresponding to the mechanical seal is at least higher than the mechanical seal, so that the mechanical seal is completely surrounded by mechanical oil.

In order to further discharge the air remained in the oil chamber, the middle part of the end surface of the oil chamber is provided with an axle hole opening, and the centers of the axle hole opening, the oil filling hole and the cable outlet hole are positioned on the same straight line, so that the inclined plane can cover the upper end of the inner cavity of the whole oil chamber. When the oil-filled cable outlet hole structure is used, mechanical oil is filled in an oil chamber cavity below the plane where the corresponding part of the cable outlet hole is located, an oil chamber cavity below the plane where the corresponding part of the shaft hole opening is located and an oil chamber cavity below the plane where the corresponding part of the oil filling hole is located in sequence, air is pushed in the direction that the inclined surface gradually rises, and finally the air is discharged from the oil filling hole.

In order to further conveniently and effectively discharge air, the inner end surface of the oil filling hole is an inclined surface, and the inclined direction of the inner end surface of the inclined oil filling hole is consistent with the inclined direction of the inner wall surface of the inclined oil chamber. The inclined surface of the oil filling hole further reduces the obstruction to the air discharge, and is favorable for more fully filling oil into the inner cavity of the oil chamber.

The utility model discloses beneficial effect who has: 1. the oil chamber structure is changed, the mechanical seal can be completely soaked in mechanical oil, the mechanical seal is prevented from being abraded due to insufficient lubrication, the motor water inlet faults and other faults caused by the mechanical seal mode are avoided, and the motor maintenance rate is reduced. 2. The internal surface of the oil chamber end wall is the inclined plane that inclines upward, and during the oiling, along with the joining of mechanical oil, mechanical oil removes the upper end direction of air to the grease chamber inner chamber, and the oil filler point can be with air drainage to the internal face of inclined oil chamber, discharges the air through the oil filler point, makes mechanical oil can fully surround mechanical seal, and mechanical seal soaks completely in continuing oil, obtains fine lubrication. 3. The inclined surface of the oil filling hole further reduces the obstruction to the air discharge, and is favorable for more fully filling oil into the inner cavity of the oil chamber. 4. In order to further discharge the air remained in the oil chamber, the middle part of the end surface of the oil chamber is provided with an axle hole opening, and the centers of the axle hole opening, the oil filling hole and the cable outlet hole are positioned on the same straight line, so that the inclined plane can cover the upper end of the inner cavity of the whole oil chamber. 5. When the oil-filled cable outlet hole structure is used, mechanical oil is filled in an oil chamber cavity below the plane where the corresponding part of the cable outlet hole is located, an oil chamber cavity below the plane where the corresponding part of the shaft hole opening is located and an oil chamber cavity below the plane where the corresponding part of the oil filling hole is located in sequence, air is pushed in the direction that the inclined surface gradually rises, and finally the air is discharged from the oil filling hole.

Drawings

Fig. 1 is a front view structure diagram of the middle oil chamber of the utility model.

Fig. 2 is a schematic sectional view of a-a in fig. 1.

FIG. 3 is a schematic cross-sectional view of B-B in FIG. 1.

Fig. 4 is a schematic structural view of a viewing angle of the middle oil chamber of the present invention.

Fig. 5 is a schematic structural view of another view angle of the middle oil chamber of the present invention.

Fig. 6 is a schematic sectional view of the present invention corresponding to fig. 2.

Fig. 7 is a schematic sectional view of the present invention corresponding to fig. 3.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): as shown in fig. 1-7, an oil-filled motor with an improved oil chamber structure comprises a housing 1, an oil chamber 2 arranged at one end of the housing, an upper baffle sleeve 3 arranged in the housing, a winding stator core 4 and a rotor, wherein a rotating shaft 5 on the rotor penetrates through the upper baffle sleeve and extends into a shaft hole of the oil chamber, a mechanical seal 6 is arranged on the rotating shaft, the mechanical seal is arranged in the shaft hole, and the upper baffle sleeve is isolated from the winding stator core and the housing.

Set up oil filler point 7 on the end wall of grease chamber, the oil filler point sets up the peripheral position at the terminal surface, the wall thickness of the end wall of grease chamber is followed one side to other one side by thick gradual thinning, corresponding to the wall thickness of the position of oil filler point is thinnest, keeps away from the wall thickness of the position of oil filler point is thickest, promptly the internal surface of the end wall of grease chamber is the inclined plane, and slope grease chamber internal wall face 21 is from keeping away from one side of oil filler point is to being close to the lopsidedness of oil filler point. The oil chamber structure is changed, the mechanical seal can be completely soaked in mechanical oil, the mechanical seal is prevented from being abraded due to insufficient lubrication, the motor water inlet faults and other faults caused by the mechanical seal mode are avoided, and the motor maintenance rate is reduced. Specifically, the inner surface of the end wall of the oil changing chamber is an inclined surface which is inclined upwards, namely, the inner wall surface of the inclined oil chamber and the axis of the motor form an included angle. When the indoor oiling of motor evacuation (relatively speaking, often still can have the air) back to the oiliness, along with the joining of mechanical oil, mechanical oil removes the air to the upper end direction of grease chamber inner chamber, and the oil filler point can be reached air drainage to the internal face of slope grease chamber, discharges the air through the oil filler point, makes mechanical oil can fully surround mechanical seal, and mechanical seal soaks completely in continuing oil, obtains fine lubrication.

As further improvement and supplement to the above technical scheme, the utility model discloses a following technical measure: a portion 22 of the inner wall surface of the inclined oil chamber corresponding to the outer end surface of the mechanical seal is located outside the outer end surface of the mechanical seal. When the motor is used, the motor is in an upright state, and in order to be capable of fully infiltrating and continuing sealing, the position of the inner cavity of the oil chamber corresponding to the mechanical seal is at least higher than the mechanical seal, so that the mechanical seal is completely surrounded by mechanical oil.

In order to further discharge the air remained in the oil chamber, the middle part of the end surface of the oil chamber is provided with an axle hole opening, and the centers of the axle hole opening 8, the oil filling hole and the cable outlet hole 9 are positioned on the same straight line, so that the inclined plane can cover the upper end of the inner cavity of the whole oil chamber. When the oil-filled cable outlet hole structure is used, mechanical oil is filled in an oil chamber cavity below the plane where the corresponding part of the cable outlet hole is located, an oil chamber cavity below the plane where the corresponding part of the shaft hole opening is located and an oil chamber cavity below the plane where the corresponding part of the oil filling hole is located in sequence, air is pushed in the direction that the inclined surface gradually rises, and finally the air is discharged from the oil filling hole.

In order to further facilitate effective air discharge, the inner end surface of the oil filler hole is an inclined surface, and the inclined direction of the inner end surface 71 of the inclined oil filler hole is consistent with the inclined direction of the inner wall surface of the inclined oil chamber. The inclined surface of the oil filling hole further reduces the obstruction to the air discharge, and is favorable for more fully filling oil into the inner cavity of the oil chamber.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. In the above embodiments, the present invention may be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil-filled motor with an improved oil chamber structure comprises a shell, an oil chamber arranged at one end of the shell, an upper baffle sleeve arranged in the shell, a stator core with windings and a rotor, a rotating shaft on the rotor passes through the upper baffle sleeve and extends into a shaft hole of the oil chamber, a mechanical seal is arranged on the rotating shaft, the mechanical seal is positioned in the shaft hole, the upper blocking sleeve isolates the stator core with the winding from the shell, the oil chamber is characterized in that an oil filling hole is arranged on the end wall of the oil chamber, the oil filling hole is arranged at the peripheral position of the end surface, the wall thickness of the end wall of the oil chamber is gradually thinned from one side to the other side, the wall thickness corresponding to the position of the oil filling hole is thinnest, and the wall thickness at the position far away from the oil filling hole is thickest, that is, the inner surface of the end wall of the oil chamber is an inclined surface, and the inner wall surface of the inclined oil chamber is inclined from the side far away from the oil filler hole to the side close to the oil filler hole.

2. The oil-filled motor of an improved oil chamber structure according to claim 1, wherein a portion of the inner wall surface of the inclined oil chamber corresponding to the outer end surface of the mechanical seal is located outside the outer end surface of the mechanical seal.

3. The oil-filled motor with the improved oil chamber structure as claimed in claim 1 or 2, wherein an axle hole opening is arranged in the middle of the end face of the oil chamber, and the centers of the axle hole opening, the oil filling hole and the cable outlet hole are located on the same straight line.

4. The oil-filled motor with the improved oil chamber structure according to claim 1 or 2, wherein the inner end surface of the oil filling hole is an inclined surface, and the inclination direction of the inner end surface of the inclined oil filling hole is consistent with the inclination direction of the inner wall surface of the inclined oil chamber.

5. The oil-filled motor with the improved oil chamber structure as claimed in claim 3, wherein the inner end surface of the oil filling hole is an inclined surface, and the inclination direction of the inner end surface of the inclined oil filling hole is the same as the inclination direction of the inner wall surface of the inclined oil chamber.