Forced lubrication system

Abstract

The utility model belongs to the technical field of engineering machinery lubrication, and particularly relates to a forced lubrication system which comprises a hydraulic motor system and a lubrication circulation system, the hydraulic motor system comprises a hydraulic motor, the lubrication circulation system comprises a circulation pump, a circulation pipeline and a bearing chamber, the hydraulic motor is used for driving the circulation pump, and the circulation pipeline is used for driving the bearing chamber. A filter assembly is arranged on the circulating pipeline, and a first one-way valve and a first stop valve are sequentially arranged on the portion, between the bearing chamber and the circulating pump, of the inlet pipeline. The forced lubrication system can utilize an original hydraulic system of engineering machinery and has the advantages of being simple, convenient to maintain and the like. And by arranging the filtering assembly and the settling box, a large number of impurities in a circulating medium can be settled in the filtering box, the impurities are prevented from entering main parts, the parts are protected against damage, and the service life of the parts is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering machinery lubrication, and in particular relates to a forced lubrication system. Background Art

[0002] In construction machinery, due to the limited number of power take-off ports and the lack of high-power generators, when forced lubrication is performed on components such as bearing chambers, the circulation pumps that circulate the lubricating medium in the bearing chambers and other components often have no power source.

[0003] In addition, even if the power take-off port of the original machine is used, there is still the risk of impurities in the circulating medium causing the circulating pump oil seal to wear and leak oil, thereby causing the power source lubricating medium to be contaminated. In addition, some system structures in the existing technology are complex, making them inconvenient to implement and maintain. Utility Model Content

[0004] The utility model provides a forced lubrication system, which can solve the problems pointed out in the background technology.

[0005] A forced lubrication system includes a hydraulic motor system and a lubrication circulation system, wherein the hydraulic motor system includes a hydraulic motor, and the lubrication circulation system includes a circulation pump, a circulation pipeline and a bearing chamber. The hydraulic motor is used to drive the circulation pump, and a filter assembly is provided on the circulation pipeline. A first one-way valve and a first stop valve are sequentially provided on the inlet pipeline between the bearing chamber and the circulation pump.

[0006] Preferably, the filter assembly includes a fine filter and a coarse filter, the fine filter is arranged before the first one-way valve, and the coarse filter is arranged on the return pipeline between the bearing chamber and the circulation pump.

[0007] Preferably, a radiator is provided between the fine filter and the first one-way valve.

[0008] Preferably, a sedimentation tank is provided between the bearing chamber and the coarse filter.

[0009] Preferably, a second stop valve and a second one-way valve are sequentially provided on the pipeline between the bearing chamber and the sedimentation tank.

[0010] Preferably, the hydraulic motor and the circulating pump are driven and connected via a coupling.

[0011] Beneficial effects: The utility model provides a forced lubrication system. The utility model can utilize the original hydraulic system of engineering machinery, has the characteristics of simple system and easy maintenance, can realize forced circulation lubrication, and is provided with a filter component and a sedimentation box, which can filter and precipitate a large amount of impurities in the circulating medium to prevent them from entering the main parts, protect the parts from damage, and increase their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a system diagram of the utility model.

[0013] Description of reference numerals:

[0014] Reference numerals in the figure: hydraulic motor 11; oil tank 12; oil pump 13; pilot relief valve 14; solenoid reversing valve 15; adjustable flow valve 16; circulating pump 21; circulating pipeline 22; bearing chamber 23; first one-way valve 24; first stop valve 25; fine filter 26; coarse filter 27; radiator 28; sedimentation tank 29; second stop valve 30; second one-way valve 31; coupling 32. DETAILED DESCRIPTION

[0015] A specific embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0016] Example 1: Figure 1 As shown, a forced lubrication system includes a hydraulic motor system and a lubrication circulation system. The hydraulic motor system includes a hydraulic motor 11, and the hydraulic motor system also includes an oil tank 12, an oil pump 13, a pilot relief valve 14, an electromagnetic reversing valve 15, an adjustable throttle valve 16 and a hydraulic pipeline. The oil pump 13 supplies oil to the hydraulic motor 11 through the electromagnetic reversing valve 15 to rotate it. At the same time, the system pressure is set by adjusting the pilot relief valve 14, and the speed of the hydraulic motor 11 is adjusted by adjusting the adjustable throttle valve 16. The above hydraulic motor system is a well-known system. For detailed connection relationship, refer to Figure 1 As shown, no further details are given here;

[0017] The lubrication circulation system includes a circulation pump 21, a circulation pipeline 22 and a bearing chamber 23. The hydraulic motor 11 is used to drive the circulation pump 21. A filter assembly is provided on the circulation pipeline 22. A first one-way valve 24 and a first stop valve 25 are provided in sequence on the inlet pipeline between the bearing chamber 22 and the circulation pump 21. The hydraulic motor 11 provides power to the circulation pump 21 to realize forced lubrication circulation.

[0018] Specifically, the hydraulic motor 11 and the circulating pump 21 are driven and connected via a coupling 32 , that is, when the circulating pump 21 leaks, the leaked lubricating medium will not enter the hydraulic motor 11 , thereby solving the problem of forced lubrication circulating medium contaminating the lubricating medium of the power source.

[0019] Specifically, the filter assembly includes a fine filter 26 and a coarse filter 27. The fine filter 26 is arranged before the first one-way valve 24, and the coarse filter 27 is arranged on the return pipeline between the bearing chamber 22 and the circulation pump 21. Through the filtration of the fine filter 26 and the coarse filter 27, most of the impurities in the circulating medium can be removed, thereby protecting other important components.

[0020] Specifically, a radiator 28 is provided between the fine filter 26 and the first one-way valve 24 .

[0021] Specifically, a sedimentation box 29 is provided between the bearing chamber 23 and the coarse filter 27. The sedimentation box 29 is used for settling impurities. The fine filter 26 and the coarse filter 27 are combined on the circulation pipeline 22 to ensure the impurity removal effect.

[0022] Specifically, a second stop valve 30 and a second one-way valve 31 are provided in sequence on the pipeline between the bearing chamber 23 and the sedimentation tank 29. By arranging the first one-way valve 24 and the first stop valve 25, the second stop valve 30 and the second one-way valve 31, it is possible to ensure that there is sufficient lubricating medium in the circulating pump 21, thereby avoiding the problem that the circulating pump 21 cannot work when the system is turned on.

[0023] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A forced lubrication system, characterized in that: The invention comprises a hydraulic motor system and a lubrication circulation system, wherein the hydraulic motor system comprises a hydraulic motor (11), the lubrication circulation system comprises a circulation pump (21), a circulation pipeline (22) and a bearing chamber (23), the hydraulic motor (11) is used to drive the circulation pump (21), a filter assembly is provided on the circulation pipeline (22), and a first one-way valve (24) and a first stop valve (25) are provided in sequence on the inlet pipeline between the bearing chamber (23) and the circulation pump (21).

2. A forced lubrication system according to claim 1, characterized in that: The filter assembly comprises a fine filter (26) and a coarse filter (27), wherein the fine filter (26) is arranged before the first one-way valve (24), and the coarse filter (27) is arranged on the return pipeline between the bearing chamber (23) and the circulation pump (21).

3. A forced lubrication system according to claim 2, characterized in that: A radiator (28) is provided between the fine filter (26) and the first one-way valve (24).

4. A forced lubrication system according to claim 3, characterized in that: A sedimentation tank (29) is provided between the bearing chamber (23) and the coarse filter (27).

5. A forced lubrication system according to claim 4, characterized in that: A second stop valve (30) and a second one-way valve (31) are sequentially provided on the pipeline between the bearing chamber (23) and the sedimentation tank (29).

6. A forced lubrication system according to any one of claims 1 to 5, characterized in that: The hydraulic motor (11) and the circulating pump (21) are drivingly connected via a coupling (32).

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