CN218409501U

CN218409501U - Oil collecting structure and motor

Info

Publication number: CN218409501U
Application number: CN202222808648.4U
Authority: CN
Inventors: 屈安
Original assignee: Beijing Sany Intelligent Motor Co ltd
Current assignee: Beijing Sany Intelligent Motor Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-01-31
Anticipated expiration: 2032-10-24

Abstract

The utility model relates to a bearing lubrication technology field provides an album oil structure and motor. The oil collecting structure includes: the outer side wall of the bearing cover is provided with a mounting surface, the mounting surface is provided with a bulge structure protruding from the mounting surface, and the bulge structure is provided with an oil discharge port communicated with the inner side of the bearing cover; the oil collecting box is installed on one side, provided with the oil discharging port, of the bearing cover, the oil collecting box is provided with an opening facing the installation surface, and the projection range of the opening on the installation surface is larger than or equal to the projection range of the protruding structure on the installation surface, so that the protruding structure can penetrate through the opening and extend into the oil collecting box. Make the bulge structure stretch into the inside of an oil collecting box to make the oil drain port can put into the inside of an oil collecting box completely, and then make lubricating grease can enter into an oil collecting box completely when discharging along the oil drain port, lubricating grease can not follow the lateral wall upflow of bulge structure and leak between installation face and the oil collecting box, thereby solved or improved among the prior art the problem that produces the oil leak easily between oil collecting box and the installation face.

Description

Oil collecting structure and motor

Technical Field

The utility model relates to a bearing lubrication technology field especially relates to an oil collecting structure and motor.

Background

When an existing motor, such as a generator of a wind turbine generator, is operated, grease needs to be filled to lubricate a bearing of the motor, and the motor usually further includes an oil collecting box for collecting the grease discharged from a bearing chamber of the motor. The outer side wall of the bearing cover of the motor is provided with a mounting surface, and an oil discharge port communicated with the inner side of the bearing cover is arranged on the mounting surface. The oil collecting box is arranged on the mounting surface of the bearing cover and communicated with the oil discharge port. To avoid leakage of grease from the gap between the sump housing and the mounting surface, a seal is typically provided between the sump housing and the mounting surface.

The oil collecting box is usually made of plastic or stainless steel, the oil collecting box made of plastic is usually formed by injection molding, and the oil collecting box made of stainless steel is usually formed by welding. No matter the injection molding process or the welding process is adopted, the oil collecting box has the problem of easy deformation, so that a gap is formed on a joint surface between the oil collecting box and a mounting surface to leak oil.

SUMMERY OF THE UTILITY MODEL

The utility model provides an collect oil structure and motor for solve or improve among the prior art the defect that produces the oil leak easily between collection oil box and the installation face, realize avoiding producing the effect of oil leak between collection oil box and the installation face.

The utility model provides an oil collecting structure, include:

the outer side wall of the bearing cover is provided with a mounting surface, the mounting surface is provided with a convex structure protruding out of the mounting surface, and the convex structure is provided with an oil discharge port communicated with the inner side of the bearing cover;

the oil collecting box is arranged on one side, provided with the oil outlet, of the bearing cover, and is provided with an opening facing the mounting surface, and the projection range of the opening on the mounting surface is larger than or equal to that of the protrusion structure on the mounting surface, so that the protrusion structure can penetrate through the opening and extend into the oil collecting box.

According to the utility model provides a pair of collect oil structure, the inside of collection oil box is equipped with the backup pad, the both ends of backup pad connect respectively in the relative both sides of the inside wall of collection oil box.

According to the utility model provides a pair of oil collecting structure, the quantity of backup pad is at least two.

According to the utility model provides a pair of oil collecting structure still includes threaded fastener, be equipped with on the bearing cap with threaded fastener threaded connection's screw hole, the oil collecting box with the position that the screw hole is relative is equipped with the confession the perforating hole that threaded fastener passed.

According to the utility model provides a pair of oil collecting structure, the perforating hole sets up to waist type hole.

According to the oil collecting structure provided by the utility model, one end of the bearing cover is provided with a flange used for being connected with the shell of the motor;

the side wall of the protruding structure far away from the flange is flush with the end face of the bearing cover far away from the flange.

According to the utility model provides a pair of collect oil structure, collect the oil box and be injection structure.

According to the utility model provides a pair of collect oil structure, the collection oil box is fire-retardant plastics collection oil box.

According to the utility model provides a pair of collect oil structure, the outside of bearing cap is provided with the boss, the installation face sets up on the boss, collect the oil box with the boss is connected.

The utility model also provides a motor, include as above the collection oil structure.

The utility model provides an oil collecting structure sets up the protruding structure of salient in installation face on the installation face to set up the oil drain port at protruding structural. The oil collecting box is arranged on one side of the bearing cover, which is provided with the oil outlet, and the projection range of the opening of the oil collecting box on the mounting surface is larger than or equal to the projection range of the protrusion structure on the mounting surface, so that the protrusion structure passes through the opening and extends into the oil collecting box, and the lubricating grease discharged from the oil outlet can completely fall into the oil collecting box.

So set up, can make the bulge structure stretch into the inside of an oil collecting box to make the oil drain port can put into the inside of an oil collecting box completely, and then make lubricating grease can enter into an oil collecting box completely when discharging along the oil drain port, lubricating grease can not follow bulge structure's lateral wall upflow and leak between installation face and the oil collecting box, thereby solve or improve among the prior art the problem that produces the oil leak easily between an oil collecting box and the installation face.

In addition, lubricating grease is collected in a mode that the protruding structure extends into the oil collecting box, a sealing element does not need to be arranged between the mounting surface and the oil collecting box, and therefore the use cost and the maintenance cost of the oil collecting structure can be reduced.

The utility model provides a motor, owing to contained the utility model provides a collect oil structure, consequently contained all the above-mentioned advantages of collection oil structure simultaneously.

Drawings

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

Fig. 1 is a schematic structural view of an oil collection structure provided in some embodiments of the present invention;

fig. 2 is a schematic view of a matching structure of an oil collecting box and a protrusion structure provided in some embodiments of the present invention;

fig. 3 is a schematic structural view of a bearing cap provided in some embodiments of the present invention;

FIG. 4 is a perspective view of the bearing cap shown in FIG. 3;

fig. 5 is a schematic structural diagram of an oil trap provided in some embodiments of the present invention.

Reference numerals:

1. a bearing cap; 101. a mounting surface; 102. a raised structure; 103. an oil discharge port; 104. a flange; 105. a boss; 106. a threaded hole; 2. an oil collecting box; 201. an opening; 202. a support plate; 203. a through hole; 204. an ear plate; 3. a threaded fastener.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

When an existing motor, such as a generator of a wind turbine generator, is operated, grease needs to be filled to lubricate a bearing of the motor, and the motor usually further includes an oil collecting box for collecting the grease discharged from a bearing chamber of the motor. The outer side wall of the bearing cover of the motor is provided with a mounting surface, and an oil discharge port communicated with the inner side of the bearing cover is arranged on the mounting surface. The oil collecting box is arranged on the mounting surface of the bearing cover and communicated with the oil outlet. To avoid leakage of grease from the gap between the sump housing and the mounting surface, a seal is typically provided between the sump housing and the mounting surface. The oil collecting box is usually made of plastic or stainless steel, the oil collecting box made of plastic is usually formed by injection molding, and the oil collecting box made of stainless steel is usually formed by welding. No matter the injection molding process or the welding process is adopted, the oil collecting box has the problem of easy deformation, so that a gap is formed between the joint surface of the oil collecting box and the installation surface to leak oil. In order to solve or improve the defect that produces the oil leak easily between collection oil box and the installation face among the prior art, realize avoiding producing the effect of oil leak between collection oil box and the installation face, the embodiment of the utility model provides an in provide an oil collecting structure and motor.

An oil collecting structure provided in an embodiment of the present invention is described below with reference to fig. 1 to 5.

Specifically, the oil collecting structure includes a bearing cap 1 and an oil collecting box 2.

The outer side wall of the bearing cap 1 is provided with a mounting surface 101, and the mounting surface 101 has a planar structure, for example. The mounting surface 101 is provided with a protrusion structure 102 protruding from the mounting surface 101. The convex structure 102 is provided with an oil drain port 103, and the oil drain port 103 is communicated with the inner side of the bearing cover 1. The bearing cap 1 has an annular structure, and the communication between the oil drain port 103 and the inside of the bearing cap 1 means that the oil drain port 103 communicates with an annular portion inside the annular structure, so that the lubricating grease can be discharged from the inside of the bearing cap 1 through the oil drain port 103.

The oil collecting box 2 is installed at one side of the bearing cover 1 provided with the oil discharge port 103. The oil collecting box 2 is provided with an opening 201 facing the mounting surface 101, and the projection range of the opening 201 on the mounting surface 101 is larger than or equal to the projection range of the convex structure 102 on the mounting surface 101, so that the convex structure 102 can penetrate into the oil collecting box 2 through the opening 201. Alternatively, the oil collecting box 2 is provided in a rectangular parallelepiped structure, and the opening 201 of the oil collecting box 2 is in a rectangular structure. The protruding structure 102 is a rectangular parallelepiped structure, the length dimension of the protruding structure 102 is smaller than or equal to the length dimension of the opening 201, and the width dimension of the protruding structure 102 is smaller than or equal to the width dimension of the opening 201, so that the protruding structure 102 can extend into the oil collecting box 2 through the opening 201. Of course, it is understood that the opening 201 and the protrusion 102 may have other shapes as long as the protrusion 102 can extend into the oil collecting box 2 through the opening 201.

The embodiment of the utility model provides an in the oil collecting structure, set up protruding in the protruding structure 102 of installation face 101 on installation face 101 to set up oil drain port 103 on protruding structure 102. The oil collecting box 2 is arranged on one side of the bearing cover 1 provided with the oil discharge port 103, and the projection range of the opening 201 of the oil collecting box 2 on the mounting surface 101 is larger than or equal to the projection range of the convex structure 102 on the mounting surface 101, so that the convex structure 102 passes through the opening 201 and extends into the oil collecting box 2, and lubricating grease discharged from the oil discharge port 103 can completely fall into the oil collecting box 2. So set up, can make protruding structure 102 stretch into the inside of gathering oil box 2 to make oil drain 103 can put into the inside of gathering oil box 2 completely, and then make lubricating grease can enter into in gathering oil box 2 completely when discharging along oil drain 103, lubricating grease can not upwards flow along the lateral wall of protruding structure 102 and leak from between installation face 101 and the gathering oil box 2, thereby solved or improved among the prior art the problem that produces the oil leak easily between gathering oil box 2 and installation face 101.

In addition, the lubricating grease is collected in a mode that the convex structures 102 extend into the oil collecting box 2, and a sealing element is not needed to be arranged between the mounting surface 101 and the oil collecting box 2, so that the use cost and the maintenance cost of the oil collecting structure can be reduced.

In some embodiments provided by the present invention, the outer side of the bearing cap 1 is provided with a boss 105, and the mounting surface 101 is disposed on the boss 105. The oil collecting box 2 is connected with the boss 105. As mentioned above, the bearing cap 1 is generally provided in a ring-shaped configuration, and thus the outer side wall of the bearing cap 1 is a circumferential surface. If the mounting surface 101 is directly provided on the outer side wall of the bearing cap 1, a larger thickness is required to be removed from the position of the mounting surface 101 on the bearing cap 1 to form the mounting surface 101. This tends to reduce the thickness of the mounting surface 101, which reduces the strength of the bearing cap 1. By providing the boss 105 on the outer circumferential wall of the bearing cap 1 and providing the mounting surface 101 on the boss 105, the mounting surface 101 for forming the oil drain port 103 can be formed without removing material from the circumferential wall of the bearing cap 1 while ensuring the strength of the bearing cap 1.

Referring to fig. 2 and 5, in some embodiments provided by the present invention, a supporting plate 202 is disposed inside the oil collecting box 2, and two ends of the supporting plate 202 are respectively connected to two opposite sides of the inner side wall of the oil collecting box 2. Connect the relative both sides of an album of oil box 2 inside wall through the both ends with backup pad 202 for backup pad 202 can play the supporting role to the lateral wall of an album oil box 2, avoids the lateral wall of an album oil box 2 to produce the problem that the indent warp, guarantees the appearance precision of an album oil box 2, and avoids the lateral wall to warp and makes opening 201 produce the problem that warp and lead to protruding structure 102 can't pass opening 201 and stretch into an album inside of oil box 2, thereby avoids the problem of an album oil box 2 installation difficulty.

As shown in fig. 5, the oil sump 2 may alternatively be a rectangular parallelepiped. Because the length of two lateral walls that the long limit of cuboid structure corresponds is big, and rigidity is relatively poor, easily produces the deformation, consequently two lateral walls that the long limit of cuboid structure corresponds are connected respectively to the both ends of backup pad 202 to reduce the deformation problem of two lateral walls that the long limit of collection oil box 2 corresponds. The long side of the oil collecting box 2 is a side extending from the lower left to the upper right in fig. 5. The two side walls corresponding to the long sides are referred to as two side walls located at the upper left and the lower right in the figure in fig. 5.

Referring to fig. 5, in some embodiments provided by the present invention, the number of the supporting plates 202 is at least two. So set up, can provide better supporting effect for collection oil box 2, prevent that collection oil box 2 from producing the deformation. Further, at least two support plates 202 are arranged along the extending direction of the long side of the oil collecting box 2.

In some embodiments provided by the present invention, the oil collecting structure further comprises a threaded fastener 3. The bearing cap 1 is provided with a threaded hole 106 which is in threaded connection with the threaded fastener 3. The oil collecting box 2 is provided with a through hole 203 for the threaded fastener 3 to pass through at a position opposite to the threaded hole 106. The threaded fastener 3 passes through the through hole 203 and is connected to the threaded hole 106, thereby connecting the oil collection box 2 to the bearing cap 1. So set up, can provide better fixed effect for collection oil box 2, in addition, be convenient for dismantle collection oil box 2 to lubricating grease in the clearance collection oil box 2. For example, the threaded fastener 3 may be a screw.

As shown in fig. 1 and 4, alternatively, a threaded hole 106 is provided on the boss 105, and both sides of the boss 105 are provided with the threaded holes 106. The side walls of the two sides of the oil collecting box 2 are provided with ear plates 204, and the ear plates 204 are provided with the through holes 203. The lug plates 204 on the two sides of the oil collecting box 2 are respectively attached to the two sides of the boss 105, and the threaded fastener 3 passes through the through hole 203 on the lug plate 204 and is in threaded connection with the threaded hole 106 on the boss 105, so that the oil collecting box 2 is fixed on the boss 105.

Referring to fig. 5, in some embodiments of the present invention, the through hole 203 is a kidney-shaped hole. With this arrangement, it is easy to adjust to compensate for and adjust the machining error of the screw hole 106 and the problem of mounting difficulty which may be caused by the shape error of the sump case 2. Further, the through holes 203 in the two ear plates 204 are each provided as a kidney-shaped hole, and the kidney-shaped holes extend in the axial direction of the bearing cap 1. The axial direction of the bearing cap 1 means the thickness direction of the bearing cap 1, that is, the left-right direction in fig. 2.

Referring to fig. 2-4, in some embodiments provided by the present invention, one end of the bearing cap 1 is provided with a flange 104 for connecting with a casing of an electric machine. For example, the flange 104 is provided with a connection hole through which a bolt or the like passes. The side wall of the raised structure 102 remote from the flange 104 is flush with the end surface of the bearing cap 1 remote from the flange 104.

With such an arrangement, as shown in fig. 4, when the protruding structure 102 is milled on the mounting surface 101 by adopting a milling process, the side wall of the protruding structure 102 away from the flange 104 is flush with the end surface of the bearing cap 1 away from the flange 104, so that the side of the mounting surface 101 away from the flange 104 does not need to be milled, and the protruding structure 102 can be formed only by milling the step surfaces of the rest three sides of the mounting surface 101, thereby reducing the processing amount and the processing and production cost of the bearing cap.

In some embodiments provided by the utility model, the oil collecting box 2 is an injection structure. By arranging the oil collecting box 2 to be of an injection molding structure, the oil collecting box 2 can be produced in an injection molding mode, so that the cost of the oil collecting box 2 can be reduced.

Further, the oil collecting box 2 is a flame retardant plastic oil collecting box. So set up, can improve the fire behaviour of collection oil box 2 to the problem that plastics collection oil box 2 was ignited in the time of preventing the locking of motor bearing when the waste oil fire, the safety in utilization of improvement collection oil structure. It should be noted that the flame retardant plastic belongs to the materials in the prior art, and in this embodiment, only the flame retardant property of the flame retardant plastic itself is utilized, and no improvement on the materials is involved.

The present invention provides some embodiments combining the features of the above embodiments, and therefore includes the advantages that can be produced by the embodiments, for example, an oil collecting structure including a bearing cap 1, an oil collecting box 2 and a threaded fastener 3.

The outer side wall of the bearing cover 1 is provided with a boss 105, the boss 105 is provided with a mounting surface 101, the mounting surface 101 is provided with a convex structure 102 protruding from the mounting surface 101, and the convex structure 102 is provided with an oil drain port 103 communicated with the inner side of the bearing cover 1. One end of the bearing cap 1 is provided with a flange 104 for connecting with a housing of the motor, and a side wall of the protruding structure 102 away from the flange 104 is flush with an end surface of the bearing cap 1 away from the flange 104.

The oil collecting box 2 is arranged on one side of the bearing cover 1 provided with the oil outlet 103 and is connected with the boss 105. The oil collecting box 2 is provided with an opening 201 facing the mounting surface 101, and the projection range of the opening 201 on the mounting surface 101 is larger than or equal to the projection range of the convex structure 102 on the mounting surface 101, so that the convex structure 102 can penetrate into the oil collecting box 2 through the opening 201. At least two supporting plates 202 are arranged inside the oil collecting box 2, and two ends of the supporting plates 202 are respectively connected to two opposite sides of the inner side wall of the oil collecting box 2. The boss 105 of the bearing cover 1 is provided with a threaded hole 106 in threaded connection with a threaded connector, a through hole 203 is arranged at the position of the oil collecting box 2 opposite to the threaded hole 106, and the through hole 203 is a waist-shaped hole. The oil collecting box 2 is a flame-retardant plastic oil collecting box, and the oil collecting box 2 is of an injection molding structure.

The embodiment of the utility model provides an in still provide a motor.

Specifically, the motor includes the oil collecting structure as described above.

It should be noted that the motor includes the oil collecting structure and also includes all the advantages of the oil collecting structure, and the description thereof is omitted.

It should be noted that the motor of the present invention includes but is not limited to a generator of a wind turbine.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An oil collecting structure, comprising:

the oil drain structure comprises a bearing cover (1), wherein the outer side wall of the bearing cover (1) is provided with a mounting surface (101), the mounting surface (101) is provided with a convex structure (102) protruding out of the mounting surface (101), and the convex structure (102) is provided with an oil drain port (103) communicated with the inner side of the bearing cover (1);

the oil collecting box (2) is installed on one side, provided with the oil outlet (103), of the bearing cover (1), the oil collecting box (2) is provided with an opening (201) facing the installation surface (101), the projection range of the opening (201) on the installation surface (101) is larger than or equal to the projection range of the protruding structure (102) on the installation surface (101), and therefore the protruding structure (102) can penetrate through the opening (201) and stretch into the oil collecting box (2).

2. The oil collecting structure according to claim 1, characterized in that a support plate (202) is arranged inside the oil collecting box (2), and two ends of the support plate (202) are respectively connected to two opposite sides of the inner side wall of the oil collecting box (2).

3. The oil collecting structure according to claim 2, characterized in that the number of the support plates (202) is at least two.

4. The oil collecting structure according to claim 1, characterized by further comprising a threaded fastener (3), wherein a threaded hole (106) in threaded connection with the threaded fastener (3) is formed in the bearing cover (1), and a through hole (203) for the threaded fastener (3) to pass through is formed in a position of the oil collecting box (2) opposite to the threaded hole (106).

5. The oil collecting structure according to claim 4, wherein the through-hole (203) is provided as a kidney-shaped hole.

6. An oil collecting structure according to any one of claims 1-5, characterized in that one end of the bearing cover (1) is provided with a flange (104) for connection with a casing of an electric motor;

the side wall of the convex structure (102) far away from the flange (104) is flush with the end face of the bearing cover (1) far away from the flange (104).

7. Oil collection structure according to any one of claims 1 to 5, characterized in that the oil collection pocket (2) is an injection-molded structure.

8. An oil collecting structure according to claim 7, characterized in that the oil collecting box (2) is a flame retardant plastic oil collecting box.

9. The oil collecting structure according to any one of claims 1 to 5, wherein a boss (105) is provided on the outer side of the bearing cover (1), the mounting surface (101) is provided on the boss (105), and the oil collecting box (2) is connected to the boss (105).

10. An electric machine comprising an oil collecting structure according to any one of claims 1 to 9.