Lubricating system and mechanical equipment

Abstract

The utility model provides a lubricating system and mechanical equipment. The lubricating system comprises an engine, a speed reducer, an oil pan and an oil inlet pipeline. And the speed reducer is connected with the engine. The oil pan is suitable for storing lubricating oil and supplying the lubricating oil to an engine and a speed reducer; the oil inlet pipeline comprises a first pipeline and a second pipeline, the first pipeline is connected with the oil pan and suitable for conveying lubricating oil to the engine, and the second pipeline is communicated with the first pipeline and suitable for conveying the lubricating oil to the speed reducer.

Description

Technical Field

[0001] The utility model relates to the field of mechanical engineering, and particularly relates to a lubrication system and a mechanical device. Background Art

[0002] In the design of existing mechanical devices, as two core components, the engine and the reducer are usually equipped with independent lubrication systems respectively. This design is to ensure that the engine and the reducer can obtain sufficient and appropriate lubricants according to their respective working characteristics and lubrication requirements, so as to maintain their efficient and stable operating states.

[0003] However, two independent lubrication systems mean that more components such as pipelines, pumps, filters, and oil storage devices are required, which undoubtedly increases the complexity of the entire mechanical device. This not only increases the cost, but also increases the maintenance difficulty and potential failure points of the two independent lubrication systems. Summary of the Utility Model

[0004] In view of this, the utility model provides a system and a mechanical device.

[0005] One aspect of the utility model provides a lubrication system, including: an engine; a reducer connected to the engine; an oil sump adapted to store lubricating oil and supply lubricating oil to the engine and the reducer; an oil inlet pipeline, including: a first pipeline and a second pipeline, wherein the first pipeline is connected to the oil sump, the first pipeline is adapted to transport lubricating oil to the engine, the second pipeline is connected to the first pipeline, and the second pipeline is adapted to transport lubricating oil to the reducer.

[0006] According to the embodiment provided by the utility model, the reducer includes: a housing, a sealed cavity is defined inside the housing, and a gear assembly is arranged inside the sealed cavity; the second pipeline is connected to the sealed cavity to transport lubricating oil to the sealed cavity and lubricate the gear assembly.

[0007] According to the embodiment provided by the utility model, the second pipeline is provided with an oil injection pipe extending into the sealed cavity to inject lubricating oil to the gear assembly through the oil injection pipe.

[0008] According to the embodiment provided by the utility model, the gear assembly includes a plurality of gears, the second pipeline is provided with a plurality of oil injection pipes, and the plurality of oil injection pipes are respectively used to inject lubricating oil to the meshing parts of different two gears.

[0009] According to the embodiment provided by the utility model, it further includes: an oil return pipeline, one end of the oil return pipeline is connected to the bottom of the housing, and the other end of the oil return pipeline is connected to the oil sump to form a cycle with the oil sump and the oil inlet pipeline.

[0010] According to the embodiment provided by the utility model, a sensor for monitoring the temperature and pressure inside the housing is further arranged inside the housing.

[0011] According to the embodiment provided by the present utility model, a ventilation cap is provided at the top of the housing, which is suitable for balancing the air pressure inside and outside the speed reducer.

[0012] According to the embodiment provided by the present utility model, an oil drain port and a plug cap for plugging the oil drain port are further provided at the bottom of the housing.

[0013] According to the embodiment provided by the present utility model, an oil pump is provided on the oil pan, and the oil pump is suitable for pumping lubricating oil to the first pipeline and the second pipeline.

[0014] One aspect of the present utility model provides a mechanical device that adopts the above lubrication system.

[0015] According to the lubrication system provided by the present utility model, it is connected to the oil pan through the first pipeline. The first pipeline transports the lubricating oil to the engine, and the second pipeline is connected to the first pipeline. The second pipeline transports the lubricating oil to the speed reducer, enabling the speed reducer to directly utilize the lubrication system of the engine, thereby simplifying the overall structure, reducing the number of components of the lubrication system, reducing costs, and improving the compactness, reliability, and maintenance convenience of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Through the following description of the embodiments of the present utility model with reference to the drawings, the above and other objects, features, and advantages of the present utility model will become clearer. In the drawings:

[0017] Figure 1 Schematically shows a cross-sectional view of the lubrication system of the embodiment of the present utility model;

[0018] Figure 2 Schematically shows a cross-sectional view of the speed reducer of the embodiment of the present utility model.

[0019] REFERENCE NUMERALS

[0020] 1, engine;

[0021] 11, oil pan;

[0022] 2, speed reducer;

[0023] 21, housing;

[0024] 22, input shaft;

[0025] 23, intermediate shaft;

[0026] 24, output shaft;

[0027] 25, input gear;

[0028] 26, intermediate gear;

[0029] 27. Output gear;

[0030] 28. Sensor;

[0031] 29. Breather cap;

[0032] 210. Plug cap;

[0033] 3. Inlet oil pipeline;

[0034] 31. Second pipeline;

[0035] 32. Fuel injection pipe;

[0036] 4. Return oil pipeline. Detailed implementation mode

[0037] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further elaborates on the present utility model in detail with reference to specific embodiments and the accompanying drawings.

[0038] The terms used herein are merely for describing specific embodiments and are not intended to limit the present utility model. The terms "including", "comprising", etc. used herein indicate the presence of features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.

[0039] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0040] In the case of using expressions such as "at least one of A, B, and C, etc.", generally, it should be interpreted according to the meaning commonly understood by those skilled in the art. For example, "a system having at least one of A, B, and C" should include, but is not limited to, a system having only A, only B, only C, having A and B, having A and C, having B and C, and / or having A, B, and C. In the case of using expressions such as "at least one of A, B, or C, etc.", generally, it should be interpreted according to the meaning commonly understood by those skilled in the art. For example, "a system having at least one of A, B, or C" should include, but is not limited to, a system having only A, only B, only C, having A and B, having A and C, having B and C, and / or having A, B, and C.

[0041] It should also be noted that the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only for reference to the drawings and are not used to limit the protection scope of the present invention. Throughout the drawings, the same elements are denoted by the same or similar reference numerals. When it may cause confusion in the understanding of the present invention, the conventional structures or configurations will be omitted.

[0042] Figure 1 Schematically shows a sectional view of the lubrication system according to an embodiment of the present invention.

[0043] According to the lubrication system provided by the present invention, as Figure 1 shown, it includes an engine 1, a reducer 2, and an oil inlet pipeline 3. The reducer 2 is connected to the engine 1. The oil pan 11 is adapted to store lubricating oil and supply lubricating oil to the engine 1 and the reducer 2. The oil inlet pipeline 3 includes a first pipeline and a second pipeline 31; wherein, the first pipeline is connected to the oil pan 11, and the first pipeline is adapted to transport lubricating oil to the engine 1; the second pipeline 31 is connected to the first pipeline, and the second pipeline 31 is adapted to transport lubricating oil to the reducer 2.

[0044] According to the lubrication system provided by the present invention, by connecting the first pipeline to the oil pan 11, the first pipeline transports lubricating oil to the engine 1, the second pipeline 31 is connected to the first pipeline, and the second pipeline 31 transports lubricating oil to the reducer 2, enabling the reducer 2 to directly utilize the lubrication system of the engine 1, thus simplifying the overall structure, reducing the number of components of the lubrication system, reducing costs, and improving the compactness, reliability, and maintenance convenience of the system.

[0045] In a schematic embodiment, the oil pan 11 is provided at the bottom of the engine 1 for collecting and storing lubricating oil. The first pipeline is connected to the oil pan 11 and is provided with multiple branches to transport lubricating oil to parts of the engine 1 such as the crankshaft, connecting rod, piston, valve, valve rocker arm, camshaft, etc.

[0046] In a schematic embodiment, a filter can also be provided before the lubricating oil enters the oil inlet pipeline 3 to preliminarily process the lubricating oil, filter out larger impurities and particulate matters, and ensure the cleanliness of the lubricating oil entering the system.

[0047] In a schematic embodiment, a T-shaped joint is installed on the first pipeline, and one end of the second pipeline 31 is connected to the side branch of the T-shaped joint, thereby realizing the connection of the two pipelines. Or a three-way valve is used as a connecting piece, the first pipeline and the second pipeline 31 are respectively connected to the two outlets of the three-way valve, and the inlet of the three-way valve is connected to the oil pan 11 or the oil supply system. The lubricating oil distribution ratio between the two pipelines can also be adjusted as needed through the three-way valve. The present invention is not limited thereto.

[0048] According to the embodiment provided by the present utility model, an oil pump is provided in the oil pan 11, and the oil pump is adapted to pump lubricating oil to the first pipeline and the second pipeline 31.

[0049] In such an embodiment, the reducer 2 and the engine 1 share one oil pump, reducing the number of components in the lubrication system and lowering the cost.

[0050] According to the embodiment provided by the present utility model, the reducer 2 includes a housing 21, a sealed cavity is defined in the housing 21, and a gear assembly is arranged in the sealed cavity. The second pipeline 31 is communicated with the sealed cavity to convey lubricating oil to the sealed cavity and lubricate the gear assembly.

[0051] In such an embodiment, by providing a sealed cavity in the housing 21, it can be ensured that the lubricating oil does not leak, and at the same time, external impurities are prevented from entering the gear assembly, thereby keeping the gear assembly clean and operating normally.

[0052] Figure 2 A sectional view of the reducer 2 according to the embodiment of the present utility model is schematically shown.

[0053] In a schematic embodiment, as Figure 1 and Figure 2 shown, the gear assembly includes an input shaft 22, an intermediate shaft 23, an output shaft 24, an input gear 25, an intermediate gear 26, and an output gear 27. Wherein, bearings for supporting the input shaft 22 are respectively arranged at both ends of the input shaft 22. Bearings for supporting the intermediate shaft 23 are respectively arranged at both ends of the intermediate shaft 23. Bearings for supporting the output shaft 24 are respectively arranged at both ends of the output shaft 24. The input gear 25 is mounted on the input shaft 22 and connected by a spline. The output gear 27 is mounted on the output shaft 24 and connected by a spline. The intermediate gear 26 is mounted on the intermediate shaft 23 and meshes with the input gear 25 and the output gear 27 respectively.

[0054] In a schematic embodiment, when the reducer 2 is working, the engine 1 first transmits power to the input shaft 22, transmits the power to the input gear 25 thereon through the spline on the shaft, transmits the power to the output gear 27 through the meshing of the input gear 25 with the intermediate gear 26 and the meshing of the intermediate gear 26 with the output gear 27, and the output gear 27 transmits the power to the output shaft 24 through the spline for external power output.

[0055] According to the embodiment provided by the present utility model, as Figure 2 shown, the second pipeline 31 is provided with an oil injection pipe 32 extending into the sealed cavity to inject lubricating oil to the gear assembly through the oil injection pipe 32.

[0056] In such an embodiment, the lubricating oil can be directly sprayed onto the key lubrication points of the gear assembly through the oil spray pipe 32, ensuring that these key parts are fully lubricated. This directional lubrication method is more efficient, can reduce the waste of lubricating oil, and improve the lubrication effect.

[0057] In a schematic embodiment, the oil spray pipe 32 can be made of wear-resistant and corrosion-resistant materials, such as stainless steel, to ensure its stability and durability during long-term operation. The diameter and length of the oil spray pipe 32 can be precisely designed according to the specific layout and lubrication requirements of the gear assembly to ensure that the lubricating oil can be evenly and effectively sprayed onto each lubrication point.

[0058] In a schematic embodiment, nozzles are also arranged on the oil spray pipe 32, and the spraying angle of the nozzles can be set according to the structural characteristics of the gear assembly. A flow control valve can also be set on the oil spray pipe 32 to adjust the spraying amount of the lubricating oil according to the operating state and lubrication requirements of the gear assembly. While avoiding the waste of lubricating oil, it ensures that the gear assembly is properly lubricated.

[0059] According to the embodiment provided by the present utility model, as Figure 2 shown, the gear assembly includes a plurality of gears, and the second pipeline 31 is provided with a plurality of oil spray pipes 32, and the plurality of oil spray pipes 32 are respectively used to spray lubricating oil onto the meshing parts of different two gears.

[0060] In such an embodiment, through the plurality of oil spray pipes 32, it can be ensured that all important meshing points in the gear assembly are fully lubricated, avoiding wear and failures caused by insufficient lubrication.

[0061] According to the embodiment provided by the present utility model, it further includes: an oil return pipeline 4, one end of the oil return pipeline 4 is communicated with the bottom of the housing 21, and the other end of the oil return pipeline 4 is communicated with the oil sump 11 to form a cycle with the oil sump 11 and the oil inlet pipeline 3.

[0062] In such an embodiment, the oil return pipeline 4 is connected to the oil sump 11 and the oil inlet pipeline 3 to form a closed lubricating oil circulation system, which prevents the accumulation and leakage of lubricating oil. And during the circulation process of the lubricating oil, it can also take away the heat generated by mechanical components and flow back to the oil sump 11 through the oil return pipeline 4 for cooling, which helps to reduce the oil temperature and maintain the stable performance of the lubricating oil.

[0063] According to the embodiment provided by the present utility model, a sensor 28 for monitoring the temperature and pressure inside the housing 21 is further arranged inside the housing 21.

[0064] In a schematic embodiment, an electronic control system may also be provided, which is communicatively connected to the sensor 28 and the oil pump respectively. The sensor 28 can be used to detect the oil temperature and oil pressure inside the reducer 2 in real time, and according to the signal returned by the sensor 28, the injection pressure and oil volume of the oil pump are adjusted to ensure that the lubrication system achieves an ideal lubrication effect.

[0065] According to the embodiment provided by the present utility model, a breather cap 29 is provided at the top of the housing 21, which is suitable for balancing the air pressure inside and outside the reducer 2.

[0066] In such an embodiment, when the reducer 2 operates, the internal temperature will rise, resulting in the evaporation of the lubricating oil and the expansion of the gas, increasing the internal pressure. The presence of the breather cap 29 allows these gases to be discharged smoothly, avoiding damage to the seals and oil seals of the reducer 2.

[0067] According to the embodiment provided by the present utility model, an oil drain port and a plug cap 210 for plugging the oil drain port are also provided at the bottom of the housing 21.

[0068] In such an embodiment, the design of the oil drain port allows the operator to quickly drain the lubricating oil in the housing 21 when needed, facilitating regular maintenance and reducing the maintenance time, thereby improving the work efficiency. By completely draining the lubricating oil through the oil drain port, it can ensure that the inside of the housing 21 is thoroughly cleaned, removing the old oil, impurities and metal chips, and preparing for the replacement of the new oil.

[0069] In a schematic embodiment, the lubrication system is supplied with oil by an oil pump provided in the oil sump 11, lubricates the meshing part of the gear assembly through the injection pipe 32, and the lubricating oil returns to the engine oil sump 11 through the oil return pipe 4. At the same time, the gear assembly is lubricated by oil agitation to ensure that the lubrication requirements of the gear surface and bearings are met. The internal sensor 28 of the reducer 2 can monitor the oil temperature and oil pressure in real time, return the signal to the oil pump of the engine 1 to adjust the injection pressure, oil volume, etc., and at the same time ensure the lubrication effect of the reducer 2 and the engine 1.

[0070] Another aspect of the present utility model also provides a mechanical device, which adopts the above-mentioned lubrication system. For example, this lubrication system can be applied to the engines and reducers of heavy machinery, the engines and reducers of helicopters, and the engines and reducers of ship propulsion systems. This lubrication system simplifies the overall structure, reduces the number of components of the lubrication system, reduces the cost, and improves the compactness, reliability and maintenance convenience of the system.

[0071] The embodiments of the present utility model have been described above. However, these embodiments are merely for illustrative purposes and not for limiting the scope of the present utility model. Although the embodiments have been described separately above, this does not mean that the measures in each embodiment cannot be used advantageously in combination. The scope of the present utility model is defined by the appended claims and their equivalents. Without departing from the scope of the present utility model, those skilled in the art can make various substitutions and modifications, and these substitutions and modifications should all fall within the scope of the present utility model.

Claims

1. A lubrication system, characterized in that, Comprising: An engine (1); A speed reducer (2), connected to the engine (1); An oil pan (11), adapted to store lubricating oil and supply the lubricating oil to the engine (1) and the speed reducer (2); An oil inlet pipeline (3): a first pipeline and a second pipeline (31), wherein the first pipeline is connected to the oil pan (11), the first pipeline is adapted to transport the lubricating oil to the engine (1), the second pipeline (31) is in communication with the first pipeline, and the second pipeline (31) is adapted to transport the lubricating oil to the speed reducer (2).

2. The lubrication system according to claim 1, characterized in that, The speed reducer (2) includes: a housing (21), a sealed cavity is defined within the housing (21), and a gear assembly is disposed within the sealed cavity; The second pipeline (31) is in communication with the sealed cavity to transport the lubricating oil to the sealed cavity and lubricate the gear assembly.

3. The lubrication system according to claim 2, wherein The second pipeline (31) is provided with an oil injection pipe (32) extending into the sealed cavity to inject the lubricating oil to the gear assembly through the oil injection pipe (32).

4. The lubrication system according to claim 3, characterized in that, The gear assembly includes a plurality of gears, the second pipeline (31) is provided with a plurality of the oil injection pipes (32), and the plurality of oil injection pipes (32) are respectively used to inject the lubricating oil to the meshing portions of two different gears.

5. The lubrication system according to claim 2, wherein, Further comprising: An oil return pipeline (4), one end of the oil return pipeline (4) is in communication with the bottom of the housing (21), and the other end of the oil return pipeline (4) is in communication with the oil pan (11) to form a cycle with the oil pan (11) and the oil inlet pipeline (3).

6. The lubrication system according to any one of claims 2-5, characterized in that, A sensor (28) for monitoring the temperature and pressure within the housing (21) is further disposed within the housing (21).

7. The lubrication system according to any one of claims 2-5, characterized in that, A breather cap (29) is disposed at the top of the housing (21) for the air pressure inside and outside the speed reducer (2).

8. The lubrication system according to any one of claims 2-5, characterized in that, A drain port and a plug cap (210) for plugging the drain port are further disposed at the bottom of the housing (21).

9. The lubrication system according to claim 1, wherein, The oil pan (11) is provided with an oil pump, and the oil pump is adapted to pump the lubricating oil to the first pipeline and the second pipeline (31).

10. A mechanical device, characterized in that, Comprising: The lubrication system according to any one of claims 1 to 9.

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