CN220227842U

CN220227842U - Compact bearing seal structure

Info

Publication number: CN220227842U
Application number: CN202321443746.0U
Authority: CN
Inventors: 秦莉
Original assignee: Teco Westinghouse Motor Co
Current assignee: Teco Westinghouse Motor Co
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-12-22
Anticipated expiration: 2033-06-07

Abstract

The utility model provides a compact bearing sealing structure, which comprises a boss arranged on an intermediate shaft body of a rotating shaft 1; the bearing sleeve is arranged at the position, close to the boss, outside the rotating shaft, the inner side wall of the bearing is attached to the rotating shaft, and the bearing sleeve is provided with a bracket; the rear bearing sealing module is sleeved on one side, close to the boss, of the rotating shaft, the outer side, far away from the rotating shaft, of the rear bearing sealing module is attached to the side face of the bracket, and an inner oil baffle at the inner side of the rear bearing sealing module is clamped between the bearing and the boss; the front bearing sealing module is sleeved on one side of the rotating shaft far away from the boss, the rotating shaft, the bearing, the rear bearing sealing module and the front bearing sealing module are adopted, the inner oil baffle is added in the rear bearing sealing module, the inner oil baffle is driven to stir grease when the rotating shaft rotates, the circulation of the grease in the bearing is improved, the heat dissipation efficiency is improved, and the inner oil baffle is used as a newly added layer of barrier between the cavity and the rear sealing cover to improve the sealing performance of the rear bearing sealing module.

Description

Compact bearing seal structure

Technical Field

The utility model relates to the field of motor manufacturing, in particular to the technical field of motor internal bearing sealing, and particularly relates to a compact bearing sealing structure.

Background

The problems of oil leakage and overrun temperature rise of the feedback bearing chamber, which are close to the boss, occur in the field manufacturing of the existing motor, so that the phenomenon of bearing jamming and burning out occurs, the manufacturing cost of the motor is greatly improved, and the motor is found after inspection by a designer because of single internal structure of the existing bearing part group, poor sealing effect and the like. To avoid or reduce such occurrences, the internal sealing structure of the bearing unit is now upgraded to improve the compactness of the bearing unit.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a compact bearing seal structure for solving the difficulties of the prior art.

To achieve the above and other related objects, the present utility model provides a compact bearing seal structure comprising:

the rotary shaft 1, a boss 11 is arranged on the middle shaft body of the rotary shaft 1;

the bearing 2 is sleeved outside the rotating shaft 1 and is close to the boss 11, the inner side wall of the bearing 2 is attached to the rotating shaft 1, and a bracket 3 is sleeved outside the bearing 2;

the rear bearing sealing module 4 is sleeved on one side, close to the boss 11, of the rotating shaft 1, the outer side, far away from the rotating shaft 1, of the rear bearing sealing module 4 is attached to the side face of the bracket 3, and an inner oil baffle 43 at the inner side of the rear bearing sealing module 4 is clamped between the bearing 2 and the boss 11;

the front bearing seal module 5, the front bearing seal module 5 cover is established in the pivot 1 and is kept away from the one side of boss 11, the front bearing seal module 5 outside is laminated with bracket 3 side, the outer oil fender 51 one side in the front bearing seal module 5 contacts opposite side and bearing 2 with pivot 1 contact.

According to a preferred embodiment, the rear bearing seal module 4 comprises:

the outer side of the rear sealing cover 41 is connected with one side, close to the boss 11, of the bracket 3, the inner side of the rear sealing cover 41 is attached to the bearing 2, and a first clamping groove 42 is reserved on one side, close to the bearing 2, of the rear sealing cover 41;

the inner oil baffle 43, one side of the inner oil baffle 43 is clamped in the first clamping groove 42, and the other side of the inner oil baffle 43 is propped between the bearing 2 and the boss 11 and is attached to the shaft body of the rotating shaft 1 and the inner ring of the bearing 2.

According to a preferred embodiment, a space is provided between the bottom of the inner oil baffle 43 and the bottom of the first clamping groove 42.

According to a preferred scheme, an O-shaped sealing ring 44 is arranged between the inner side of the rear sealing cover 41 and the rotating shaft 1 at equal intervals.

According to a preferred scheme, the oil groove 32 is formed in the bracket 3 in a penetrating mode, an oil filling port 31 is formed in the outer side of the bracket 3, and the oil filling port 31 is communicated with the oil groove 32.

According to a preferred embodiment, the cavity 45 is formed by a pre-groove on one side of the rear sealing cover 41, which is close to the bearing 2, and a space where the bearing 2 is located, and the cavity 45 is communicated with the oil groove 32.

According to a preferred embodiment, the front bearing seal module 5 comprises:

the outer oil baffle 51 is sleeved on the rotating shaft 1, the inner wall of the outer oil baffle 51 is attached to the rotating shaft 1, one side, close to the boss 11, of the outer oil baffle 51 is attached to the inner ring of the bearing 2, and a second clamping groove 52 is reserved on one side, far from the boss 11, of the outer oil baffle 51;

the front sealing cover 53 is sleeved on the outer oil baffle 51, the top of the front sealing cover 53 is clamped in the second clamping groove 52, the middle of the front sealing cover 53 is clamped between the outer oil baffle 51 and the bracket 3, and the bottom of the front sealing cover 53 is in contact with the bracket.

According to the preferred scheme, one side of the outer oil baffle 51 far away from the boss 11 is sleeved with an oil sealing block 54, the bottom end of the outer side of the oil sealing block 54 is contacted with the outer oil baffle 51, and the bottom end of the inner side of the oil sealing block 54 is contacted with the front sealing cover 53.

According to a preferred embodiment, a cooling oil groove 55 is formed in one side of the front sealing cover 53 away from the rotating shaft 1, and the bottom of the cooling oil groove 55 is in contact with the outer oil barrier 51.

According to a preferred embodiment, the oil seal 54 and the outer oil deflector 51 are connected by bolts.

The utility model adopts the rotating shaft, the bearing, the rear bearing sealing module and the front bearing sealing module, and the inner oil baffle is added in the rear bearing sealing module, so that the inner oil baffle is driven to stir grease when the rotating shaft rotates, the circulation of the grease in the bearing is improved, the heat dissipation efficiency is improved, and the inner oil baffle is used as a newly added layer of barrier between the cavity and the rear sealing cover to improve the sealing performance of the rear bearing sealing module.

Preferred embodiments for carrying out the present utility model will be described in more detail below with reference to the attached drawings so that the features and advantages of the present utility model can be easily understood.

Drawings

FIG. 1 shows a schematic cross-sectional view of the present utility model;

description of the reference numerals

1. A rotating shaft; 11. a boss; 2. a bearing; 3. a bracket; 31. an oil filling port; 32. an oil groove; 4. a rear bearing seal module; 41. a rear sealing cover; 42. a first clamping groove; 43. an inner oil shield; 44. an O-shaped sealing ring; 45. a cavity; 5. a front bearing seal module; 51. an outer oil shield; 52. a second clamping groove; 53. a front sealing cover; 54. sealing the oil block; 55. a cooling oil tank;

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

Possible embodiments within the scope of the utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The utility model proposes a compact bearing sealing structure for use in the bearing sealing process, the structure of the inner oil shield 43 in the rear bearing seal module 4 being particularly suitable for use in bearing sealing structures.

In general, the compact bearing seal structure proposed by the present utility model mainly includes a rotating shaft 1, a bearing 2, a rear bearing seal module 4 and a front bearing seal module 5, wherein reference may be made to fig. 1, which shows an arrangement relationship of the rotating shaft 1, the bearing 2, the rear bearing seal module 4 and the front bearing seal module 5.

In order to solve the problem of bearing burning loss caused by the oil leakage phenomenon and bearing seizing and overhigh temperature, an inner oil baffle 43 is additionally arranged between the bearing 2 and the boss 11 in the rear bearing seal module 4, the inner oil baffle 43 serves as a newly added layer of barrier between the cavity 45 and the rear sealing cover 41, and a space is reserved between the bottom of the inner oil baffle 43 and the bottom of the first clamping groove 42, so that a labyrinth effect is formed between the inner oil baffle 43 and the rear sealing cover 41, the tightness of the rear bearing seal module 4 is improved, the oil leakage phenomenon can be effectively prevented, the contact area between the bearing 2 and the rotating shaft 1 is reduced by the inner oil baffle 43, the side wall of the bearing 2 can not be directly contacted with the boss 11 any more, the phenomenon that the bearing 2 is seized due to vibration during the operation of the rotating shaft 1 can be effectively reduced, the inner oil baffle 43 rotates along with the rotation during the rotation of the rotating shaft 1, the oil circulation in the cavity 45 is improved, the heat dissipation efficiency is improved, and the temperature rise of the bearing chamber is reduced.

The above-mentioned back bearing seal module 4 cover is established in the pivot 1 and is close to one side of boss 11, the outside that pivot 1 was kept away from to back bearing seal module 4 is laminated with bracket 3 side, and back bearing seal module 4 includes: the rear sealing cover 41 and the inner oil baffle 43, wherein the outer side of the rear sealing cover 41 is connected with one side of the bracket 3 close to the boss 11, the inner side of the rear sealing cover 41 is attached to the bearing 2, a first clamping groove 42 is reserved on one side of the rear sealing cover 41 close to the bearing 2, the inner oil baffle 43 is clamped in the first clamping groove 42, a gap is reserved between the inner oil baffle 43 and the bottom of the first clamping groove 42, the reliability of bearing sealing is improved, one side of the inner oil baffle 43 is abutted between the bearing 2 and the boss 11 and is attached to the shaft body of the rotating shaft 1 and the inner ring of the bearing 2, the stability of the bearing in operation is improved, an O-shaped sealing ring 44 is arranged between the inner side of the rear sealing cover 41 and the rotating shaft 1 at equal intervals, the tightness of the rear bearing sealing module 4 is improved, a cavity 45 formed by a pre-groove on one side of the rear sealing cover 41 and the bearing 2 is connected with the oil groove 32 penetrating through the bracket 3, and cooling oil injected from the oil inlet 31 communicated with the oil groove 32 is arranged on the outer side of the bracket 3 during motor operation enters the cavity 45 from the oil groove 32 to cool the bearing 2.

On this basis, the preferential front bearing seal module 5 cover is established in the pivot 1 and is kept away from the one side of boss 11, and the front bearing seal module 5 outside is laminated with bracket 3 side, and front bearing seal module 5 includes: the motor comprises an outer oil baffle 51, a front sealing cover 53 and an oil sealing block 54, wherein the outer oil baffle 51 is sleeved on a rotating shaft 1, the inner wall of the outer oil baffle 51 is attached to the rotating shaft 1, one side of the outer oil baffle 51, which is close to a boss 11, is attached to the inner ring of a bearing 2, the bearing 2 is limited, a second clamping groove 52 is reserved on one side of the outer oil baffle 51, which is far away from the boss 11, a front sealing cover 53 is sleeved on one side of the outer oil baffle 51, which is far away from the boss 11, the top of the sealing cover is clamped in the second clamping groove 52, the middle is clamped between the outer oil baffle 51 and a bracket 3, the bottom of the sealing cover is contacted with the bracket, the cooling oil groove 55 is formed in one side of the front sealing cover 53, which is far away from the rotating shaft 1, the cooling oil groove 55 is contacted with the outer oil baffle 51, the temperature of the outer oil baffle 51 is reduced through heat conduction when the motor is in operation, the cooling oil is circularly injected into the cooling oil groove 55, the outer oil baffle 51 is further required to be explained, the bottom of the outer oil sealing block 54 is sleeved on one side of the boss 11, the bottom of the outer oil sealing block 54 is contacted with the outer oil baffle 51, the bottom of the sealing cover 54 is contacted with the front sealing cover 53, the bottom of the inner side of the sealing cover 53 is contacted with the front sealing cover 53, and the inner side of the cooling oil baffle 53 is prevented from seeping out of the cooling oil from the front sealing cover 53.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. A compact bearing seal structure comprising:

the rotary shaft (1), there is boss (11) on the intermediate shaft body of the said rotary shaft (1);

the bearing (2) is sleeved outside the rotating shaft (1) and is close to the boss (11), the inner side wall of the bearing (2) is attached to the rotating shaft (1), and the bracket (3) is sleeved outside the bearing (2);

the rear bearing sealing module (4) is sleeved on one side, close to the boss (11), of the rotating shaft (1), the outer side, far away from the rotating shaft (1), of the rear bearing sealing module (4) is attached to the side face of the bracket (3), and an inner oil baffle (43) on the inner side of the rear bearing sealing module (4) is clamped between the bearing (2) and the boss (11);

the front bearing sealing module (5), one side far away from the boss (11) on the rotating shaft (1) is sleeved with the front bearing sealing module (5), the outer side of the front bearing sealing module (5) is attached to the side face of the bracket (3), and one side of an outer oil baffle (51) in the front bearing sealing module (5) is contacted with the rotating shaft (1) and the other side is contacted with the bearing (2).

2. The compact bearing seal arrangement as claimed in claim 1, wherein the rear bearing seal module (4) comprises:

the outer side of the rear sealing cover (41) is connected with one side, close to the boss (11), of the bracket (3), the inner side of the rear sealing cover (41) is attached to the bearing (2), and a first clamping groove (42) is reserved on one side, close to the bearing (2), of the rear sealing cover (41);

the inner oil baffle (43), one side of the inner oil baffle (43) is clamped in the first clamping groove (42), and the other side of the inner oil baffle (43) is propped between the bearing (2) and the boss (11) and is attached to the shaft body of the rotating shaft (1) and the inner ring of the bearing (2).

3. The compact bearing seal structure according to claim 2, characterized in that an O-ring (44) is provided at equal intervals between the inner side of the rear seal cover (41) and the rotating shaft (1).

4. A compact bearing seal arrangement according to claim 3, characterized in that the carrier (3) is internally provided with an oil groove (32) therethrough, the carrier (3) being provided with an oil filler opening (31) on the outside, the oil filler opening (31) communicating with the oil groove (32).

5. The compact bearing seal structure according to claim 4, characterized in that a cavity (45) is formed by a pre-groove on the side of the rear seal cover (41) close to the bearing (2) and the space where the bearing (2) is located, and the cavity (45) is communicated with the oil groove (32).

6. The compact bearing seal arrangement as claimed in claim 5, wherein the front bearing seal module (5) comprises:

the outer oil baffle (51) is sleeved on the rotating shaft (1), the inner wall of the outer oil baffle (51) is attached to the rotating shaft (1), one side, close to the boss (11), of the outer oil baffle (51) is attached to the inner ring of the bearing (2), and a second clamping groove (52) is reserved on one side, far away from the boss (11), of the outer oil baffle (51);

the front sealing cover (53), front sealing cover (53) cover is established on outer oil baffle (51), front sealing cover (53) top card is established in second draw-in groove (52), front sealing cover (53) centre card is established between outer oil baffle (51) and bracket (3), front sealing cover (53) bottom and bracket contact.

7. The compact bearing sealing structure according to claim 6, wherein an oil sealing block (54) is sleeved on one side of the outer oil baffle (51) away from the boss (11), the outer bottom end of the oil sealing block (54) is contacted with the outer oil baffle (51), and the inner bottom end of the oil sealing block (54) is contacted with the front sealing cover (53).