Motor and lubricating system
By setting up independent oil return pipelines and oil return components for each bearing assembly in the motor and lubrication system, the problem of poor oil return is solved, the return efficiency of lubricating oil is improved and the lubricating oil leakage is avoided.
Patent Information
- Application Number
- CN202421646445.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-11
AI Technical Summary
In existing motors and lubrication systems, the lubricating oil of the bearing assembly is prone to poor return oil due to convergence resistance, which leads to excessive oil level or excessive oil and gas pressure, causing lubricating oil to leak.
A motor and lubrication system are designed, in which the oil outlets of the two bearing components are connected to the two oil return components through two oil return pipelines to prevent the lubricating oil from flowing into one pipeline, thereby reducing the bus resistance.
By separateing the oil return paths, the return efficiency of lubricant oil is improved and the oil leakage problem of lubricant in the bearing assembly is avoided.
Smart Images
Figure CN222849008U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing lubrication, in particular to a motor and a lubrication system. Background Art
[0002] In the prior art, a lubricating oil station for lubricating motor bearings generally has an oil return port, and the oil outlet at the driving end and the oil outlet at the non-driving end of the motor merge into the main pipeline through two branch pipelines and then flow into the oil return port through the main pipeline, i.e., a "T"-shaped pipeline is formed. Since the lubricating oil is viscous, when the two branch pipelines merge at the main pipeline, greater resistance will be generated, resulting in poor oil return, which will block the air path of the motor bearing box, pipeline and oil storage tank, thereby causing the oil level in the motor bearing box to increase or the oil and gas pressure to be too high, which in turn causes the motor bearing lubricating oil to leak through the bearing seal. Utility Model Content
[0003] In view of this, the utility model proposes a motor and a lubrication system to solve the problem of oil leakage of the bearing assembly of the motor and the lubrication system in the prior art.
[0004] The utility model provides a motor and a lubrication system, comprising: a motor, having a power axis and a driving end and a non-driving end arranged opposite to each other on the power axis, wherein the driving end and the non-driving end are both provided with bearing assemblies, and each bearing assembly is provided with an oil outlet; a lubricating oil station, arranged on one side of the motor, the lubricating oil station is located between the driving end and the non-driving end, the lubricating oil station comprises an oil storage tank and two oil return components connected to the oil storage tank; a conveying part, comprising two oil return pipelines, and the oil outlets of the two bearing assemblies are respectively connected to the two oil return components via the two oil return pipelines.
[0005] In this way, it is possible to avoid the situation where the lubricating oil in the bearing assembly at the non-driving end and the lubricating oil in the bearing assembly at the driving end are merged into one pipeline, thereby avoiding the problem of poor oil return due to confluence resistance, so that the lubricating oil in the bearing assembly can be returned to the lubricating oil station in time, and it is possible to avoid the problem of oil leakage of the bearing assembly through the bearing seal due to the oil level in the bearing assembly being too high or the oil and gas pressure being too high.
[0006] In a preferred embodiment, along the extension direction of the power axis, the driving end, two oil return components and the non-driving end are arranged in sequence, the oil outlet corresponding to the driving end is connected to the oil return component close to the driving end, and the oil outlet corresponding to the non-driving end is connected to the oil return component close to the non-driving end.
[0007] In this way, the path of the lubricating oil from the oil outlet of the non-driving end back to the oil storage tank can be shortened, thereby facilitating oil return and improving oil return efficiency.
[0008] In a preferred embodiment, along the extension direction of the power axis, the two oil return components are respectively located on both sides of the lubricating oil station.
[0009] In this way, on the one hand, the oil return path can be shortened; on the other hand, the setting of the L-shaped elbow can be reduced, thereby reducing the oil return resistance to avoid the problem of poor oil return, and then the lubricating oil in the bearing assembly can be returned to the lubricating oil station in time to avoid oil leakage in the bearing assembly.
[0010] In a preferred embodiment, the oil return component corresponding to the driving end is located below the driving end, the oil return component corresponding to the non-driving end is located below the non-driving end, the oil return pipeline is located below the driving end and the non-driving end, and at least part of the oil return pipeline is inclined relative to the power axis.
[0011] In this way, under the action of gravity, the lubricating oil in the bearing assembly can flow into the oil storage tank through the oil return pipeline.
[0012] In a preferred embodiment, the oil return pipeline includes a first pipe section and a second pipe section that are connected and arranged at an angle, the first pipe section is connected to the corresponding oil outlet, the second pipe section is connected to the oil return component, the first pipe section is inclined relative to the power axis, and the second pipe section is parallel to the power axis.
[0013] In this way, it is convenient for the lubricating oil in the bearing assembly to enter the oil return component through the oil outlet, the first pipe section, and the second pipe section, and then enter the oil storage tank through the oil return component.
[0014] In a preferred embodiment, the inclination of the first pipe section is greater than or equal to 0.5% and less than or equal to 1%.
[0015] In this way, the oil return efficiency can be improved.
[0016] In a preferred embodiment, the oil return pipeline further includes a third pipe section for connecting the first pipe section and the oil outlet, the third pipe section is arranged at an angle to the first pipe section, and the two third pipe sections are located on both sides of the motor along the power axis.
[0017] In this way, it is convenient to connect the oil outlet of the bearing assembly with the first pipe section.
[0018] In a preferred embodiment, each oil return pipeline is provided with a first flange, each oil return component includes a connecting pipe connected to the oil storage tank and a second flange connected to the connecting pipe, and the first flange is sealingly connected to the corresponding second flange.
[0019] In this way, communication between the oil return line and the oil return member can be achieved.
[0020] In a preferred embodiment, the lubricating oil station also includes a power pump and an oil supply component connected to the oil storage tank, the power pump includes a pump body located in the oil storage tank and a driving component arranged on the oil storage tank, the outlet of the power pump is connected to the inlet of the oil supply component, the inlet of the power pump is used for oil intake, and each bearing assembly is provided with an oil inlet; the delivery part also includes a main oil supply pipeline and two branch oil supply pipelines connected to the main oil supply pipeline, the main oil supply pipeline is connected to the outlet of the oil supply component, and the two branch oil supply pipelines are respectively connected to the oil inlets of the two bearing assemblies.
[0021] In this way, the lubricating oil in the oil storage tank can be pumped into the oil supply component through the pump body in the oil storage tank, and enter the oil inlet on the corresponding bearing assembly through the oil supply component, the main oil supply pipeline, and each branch oil supply pipeline in turn. After lubricating each bearing assembly, it enters the oil storage tank through the oil outlet on each bearing assembly, the corresponding oil return pipeline and the corresponding oil return component in turn to realize the circulation of the lubricating oil.
[0022] It can be seen from the above scheme that by setting up two oil return components, and the oil outlets of the two bearing assemblies are connected to the two oil return components through two oil return pipelines respectively, it is possible to avoid the situation where the lubricating oil in the bearing assembly at the non-driving end and the lubricating oil in the bearing assembly at the driving end are merged into one pipeline, thereby avoiding the problem of poor oil return and air path blockage due to the generation of confluence resistance, so that the lubricating oil in the bearing assembly can be returned to the lubricating oil station in time, and the problem of oil leakage of the bearing assembly through the bearing seal caused by the oil level of the lubricating oil in the bearing assembly being too high or the oil and gas pressure being too high can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art will be more aware of the above and other features and advantages of the present invention. In the accompanying drawings:
[0024] Figure 1 It is a structural schematic diagram of a motor and a lubrication system according to an exemplary embodiment of the utility model;
[0025] Figure 2 for Figure 1 A partial enlarged view of the motor and lubrication system at point A;
[0026] Figure 3 for Figure 1 The right side view of the motor and the lubrication system of the motor;
[0027] Figure 4 for Figure 1 The structural diagram of the lubricating oil station of the motor and lubrication system;
[0028] Figure 5 for Figure 4 Left side view of the motor and lubrication system.
[0029] In the above drawings, the reference numerals used are as follows:
[0030] 10. Motor;
[0031] 11. Driving end;
[0032] 12. Non-driving end;
[0033] 20. Lubricating oil station;
[0034] 21. Oil return component;
[0035] 22. Oil storage tank;
[0036] 23. Connecting pipe;
[0037] 24. Second flange;
[0038] 50. Oil return pipeline;
[0039] 51. The first pipe section;
[0040] 52. Second pipe section;
[0041] 54. First flange;
[0042] 55. Power pump;
[0043] 70. Main oil supply pipeline;
[0044] L. Power axis. DETAILED DESCRIPTION
[0045] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the following embodiments.
[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0047] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0048] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.
[0049] like Figures 1 to 5As shown, an embodiment of the utility model provides a motor and a lubrication system. The motor and the lubrication system include a motor 10, a lubricating oil station 20 and a conveying unit. The motor 10 has a power axis L and a driving end 11 and a non-driving end 12 arranged opposite to each other on the power axis L. The driving end 11 and the non-driving end 12 are both provided with bearing assemblies, and each bearing assembly is provided with an oil outlet; the lubricating oil station 20 is arranged on one side of the motor 10, and the lubricating oil station 20 is located between the driving end 11 and the non-driving end 12. The lubricating oil station 20 includes an oil storage tank 22 and two oil return components 21 connected to the oil storage tank 22; the conveying unit includes two oil return pipelines 50, and the oil outlets of the two bearing assemblies are respectively connected to the two oil return components 21 through the two oil return pipelines 50.
[0050] In the above technical solution, two oil return components 21 are provided, and the oil outlets of the two bearing assemblies are connected to the two oil return components 21 via two oil return pipelines 50, respectively. In this way, it is possible to avoid the situation where the lubricating oil in the bearing assembly of the non-driving end 12 and the lubricating oil in the bearing assembly of the driving end 11 are merged into one pipeline, thereby avoiding the problem of poor oil return and gas path blockage due to the generation of confluence resistance, so that the lubricating oil in the bearing assembly can be returned to the lubricating oil station in time, and the problem of oil leakage of the bearing assembly through the bearing seal caused by the oil level of the lubricating oil in the bearing assembly being too high or the oil and gas pressure being too high can be avoided.
[0051] like Figure 1 As shown, in the embodiment of the utility model, along the extension direction of the power axis L, the driving end 11, the two oil return components 21 and the non-driving end 12 are sequentially arranged, the oil outlet corresponding to the driving end 11 is correspondingly connected to the oil return component 21 close to the driving end 11, and the oil outlet corresponding to the non-driving end 12 is correspondingly connected to the oil return component 21 close to the non-driving end 12. In this way, the path of the lubricating oil from the oil outlet of the driving end 11 to flow back to the oil storage tank 22 can be shortened, and the path of the lubricating oil from the oil outlet of the non-driving end 12 to flow back to the oil storage tank 22 can also be shortened, thereby facilitating oil return and improving oil return efficiency.
[0052] like Figure 1 and Figure 4 As shown, in the embodiment of the present invention, along the extension direction of the power axis L, two oil return components 21 are respectively located on both sides of the lubricating oil station 20 .
[0053] Through the above-mentioned arrangement, on the one hand, the oil return path can be shortened; on the other hand, compared with the prior art in which the oil return component 21 is arranged on the side of the lubricating oil station away from the motor, in this embodiment, two oil return components 21 are arranged on both sides of the lubricating oil station 20, which can reduce the arrangement of the L-shaped elbow, thereby reducing the oil return resistance to avoid the problem of poor oil return, and then the lubricating oil in the bearing assembly can be returned to the lubricating oil station in time to avoid the problem of oil leakage in the bearing assembly.
[0054] like Figure 1 As shown, in the embodiment of the utility model, the oil return member 21 corresponding to the driving end 11 is located below the driving end 11, the oil return member 21 corresponding to the non-driving end 12 is located below the non-driving end 12, the oil return pipeline 50 is located below the driving end 11 and the non-driving end 12, and at least part of the oil return pipeline 50 is inclined relative to the power axis L. In this way, under the action of gravity, the lubricating oil in the bearing assembly can flow into the oil storage tank through the oil return pipeline 50.
[0055] like Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the oil return pipeline 50 includes a first pipe section 51 and a second pipe section 52 which are connected and arranged at an angle, the first pipe section 51 is connected to the corresponding oil outlet, the second pipe section 52 is connected to the oil return member 21, the first pipe section 51 is inclined relative to the power axis L, and the second pipe section 52 is parallel to the power axis L. In this way, it is convenient for the lubricating oil in the bearing assembly to enter the oil return member 21 through the oil outlet, the first pipe section 51, and the second pipe section 52, and then enter the oil storage tank 22 from the oil return member 21.
[0056] Specifically, in the embodiment of the utility model, the inclination of the first pipe section 51 is greater than or equal to 0.5% and less than or equal to 1%. Thus, compared with the problem of poor oil return caused by the inclination of the oil return line less than 0.5% in the prior art, the inclination of the oil return line in this embodiment is greater than 0.5%, which can speed up the flow rate of the lubricating oil.
[0057] It should be noted that in the embodiment of the present invention, the inclination refers to the ratio of the height difference to the length difference between any two points on the axis of the first pipe section 51, wherein the length direction is parallel to the extension direction of the power axis L, and the height direction is perpendicular to the extension direction of the power axis L, that is, the height direction is Figure 1 The vertical direction in .
[0058] Preferably, in the embodiment of the present invention, the inclination of the first pipe section 51 is 0.5%, that is, the first pipe section 51 will increase by 0.5 mm in height direction for every 1 m increase in length direction.
[0059] Specifically, in the embodiment of the utility model, the oil return pipeline 50 further includes a third pipe section for connecting the first pipe section 51 and the oil outlet, the third pipe section is arranged at an angle with the first pipe section 51, and the two third pipe sections are located on both sides of the motor 10 along the power axis L. In this way, it is convenient to connect the oil outlet of the bearing assembly with the first pipe section 51.
[0060] Specifically, in the embodiment of the present invention, the third pipe section extends in a direction perpendicular to the power axis L, that is, along Figure 1 Extends in the direction perpendicular to the paper plane.
[0061] like Figure 2 As shown, in the embodiment of the utility model, each oil return pipeline 50 is provided with a first flange 54, each oil return component includes a connecting pipe 23 connected to the oil storage tank 22 and a second flange 24 connected to the connecting pipe 23, and the first flange 54 is sealedly connected to the corresponding second flange 24. In this way, the communication between the oil return pipeline 50 and the oil return component 21 can be achieved.
[0062] Specifically, in the embodiment of the present utility model, the connecting pipe 23 is connected to the oil storage tank 22 by welding; a sealing ring is provided between the first flange 54 and the second flange 24, and the first flange 54 and the second flange 24 are connected by bolts and nuts.
[0063] like Figure 5 As shown, in the embodiment of the utility model, the lubricating oil station 20 also includes a power pump 55 and an oil supply component connected to the oil storage tank 22, the power pump includes a pump body located in the oil storage tank 22 and a driving member arranged on the oil storage tank 22, the outlet of the pump body is connected to the inlet of the oil supply component, the inlet of the pump body is used for oil intake, and each bearing assembly is provided with an oil inlet; the delivery part also includes a main oil supply pipeline 70 and two branch oil supply pipelines connected to the main oil supply pipeline 70, the main oil supply pipeline 70 is connected to the outlet of the oil supply component, and the two branch oil supply pipelines are respectively connected to the oil inlets of the two bearing assemblies.
[0064] Through the above-mentioned arrangement, the lubricating oil in the oil storage tank 22 can be pumped into the oil supply component through the pump body in the oil storage tank 22, and enter the oil inlet on the corresponding bearing assembly through the oil supply component, the main oil supply pipeline 70, and each branch oil supply pipeline in turn. After lubricating each bearing assembly, it enters the oil storage tank 22 through the oil outlet on each bearing assembly, the corresponding oil return pipeline 50 and the corresponding oil return component 21 in turn to realize the circulation of the lubricating oil.
[0065] Specifically, in the embodiment of the present utility model, the driving member is a driving motor to provide driving force for the pump body, and the driving member is located outside the oil storage tank 22 .
[0066] It can be seen from the above scheme that according to the motor and lubrication system proposed by the utility model, two oil return components are arranged, and the oil outlets of the two bearing assemblies are connected to the two oil return components through two oil return pipelines respectively. In this way, it is possible to avoid the situation where the lubricating oil in the bearing assembly at the non-driving end and the lubricating oil in the bearing assembly at the driving end are merged into one pipeline, thereby avoiding the problem of poor oil return and air path blockage due to the generation of confluence resistance, so that the lubricating oil in the bearing assembly can be returned to the lubricating oil station in time, and the problem of oil leakage of the bearing assembly through the bearing seal due to the lubricating oil level in the bearing assembly being too high or the oil and gas pressure being too high can be avoided.
[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A motor and lubrication system, characterized in that: include: A motor (10) having a power axis (L) and a driving end (11) and a non-driving end (12) arranged opposite to each other on the power axis (L), wherein the driving end (11) and the non-driving end (12) are both provided with bearing assemblies, and each of the bearing assemblies is provided with an oil outlet; a lubricating oil station (20) disposed on one side of the motor (10), the lubricating oil station (20) being located between the driving end (11) and the non-driving end (12), the lubricating oil station (20) comprising an oil storage tank (22) and two oil return components (21) in communication with the oil storage tank (22); The delivery part comprises two oil return pipelines (50), and the oil outlets of the two bearing assemblies are respectively connected to the two oil return components (21) via the two oil return pipelines (50).
2. The motor and lubrication system according to claim 1, characterized in that: Along the extension direction of the power axis (L), the driving end (11), the two oil return components (21) and the non-driving end (12) are arranged in sequence, the oil outlet corresponding to the driving end (11) is connected to the oil return component (21) close to the driving end (11), and the oil outlet corresponding to the non-driving end (12) is connected to the oil return component (21) close to the non-driving end (12).
3. The motor and lubrication system according to claim 2, characterized in that: Along the extension direction of the power axis (L), the two oil return components (21) are respectively located on both sides of the lubricating oil station (20).
4. The motor and lubrication system according to any one of claims 1 to 3, characterized in that: The oil return component (21) corresponding to the driving end (11) is located below the driving end (11), and the oil return component (21) corresponding to the non-driving end (12) is located below the non-driving end (12). The oil return pipeline (50) is located below the driving end (11) and the non-driving end (12), and at least a portion of the oil return pipeline (50) is arranged to be inclined relative to the power axis (L).
5. The motor and lubrication system according to claim 4, characterized in that: The oil return pipeline (50) comprises a first pipe section (51) and a second pipe section (52) which are connected and arranged at an angle, the first pipe section (51) being connected to the corresponding oil outlet, the second pipe section (52) being connected to the oil return component (21), the first pipe section (51) being arranged obliquely relative to the power axis (L), and the second pipe section (52) being arranged parallel to the power axis (L).
6. The motor and lubrication system according to claim 5, characterized in that: The inclination of the first pipe section (51) is greater than or equal to 0.5% and less than or equal to 1%.
7. The motor and lubrication system according to claim 5, characterized in that: The oil return pipeline (50) further comprises a third pipe section for connecting the first pipe section (51) and the oil outlet, the third pipe section being arranged at an angle to the first pipe section (51), and the two third pipe sections being located on both sides of the motor (10) along the power axis (L).
8. The motor and lubrication system according to any one of claims 1 to 3, characterized in that: Each of the oil return pipelines (50) is provided with a first flange (54), and each of the oil return components (21) comprises a connecting pipe (23) connected to the oil storage tank (22) and a second flange (24) connected to the connecting pipe (23), and the first flange (54) is sealedly connected to the corresponding second flange (24).
9. The motor and lubrication system according to any one of claims 1 to 3, characterized in that: The lubricating oil station (20) further comprises a power pump (55) and an oil supply component connected to the oil storage tank (22), the power pump (55) comprising a pump body located in the oil storage tank (22) and a driving component arranged on the oil storage tank (22), the outlet of the power pump (55) is communicated with the inlet of the oil supply component, the inlet of the power pump (55) is used for oil intake, and each of the bearing assemblies is provided with an oil inlet; The delivery portion further comprises a main oil supply pipeline (70) and two branch oil supply pipelines in communication with the main oil supply pipeline (70); the main oil supply pipeline (70) is in communication with the outlet of the oil supply component, and the two branch oil supply pipelines are respectively in communication with the oil inlets of the two bearing assemblies.