Novel on-line oil filtering device for gearbox

Abstract

The utility model belongs to the technical field of gear box oil filtering, and particularly relates to a novel gear box on-line oil filtering device which comprises a gear box body and a filtering box, an oil inlet pipe and a backflow pipe are installed on one side of the gear box body, and a first oil pump is installed on the surface of the oil inlet pipe. A first oil pump is installed on the surface of the oil inlet pipe, a first electromagnetic valve is further installed on the surface, away from the first oil pump, of the oil inlet pipe, a second oil pump is installed on the surface of the backflow pipe, and a second electromagnetic valve is further installed on the surface, away from the second oil pump, of the backflow pipe. Impact vibration of oil flowing on the filter box is transmitted to the position near the surface of water, sound waves can be influenced by water surface reflection and refraction, the sound transmission direction is changed, and therefore the effects of reducing noise and protecting connection between the oil inlet pipe and the filter box and connection between the oil return pipe and the filter box are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear box oil filtering, and particularly relates to a novel online oil filtering device for a gear box. Background Art

[0002] The existing gearbox is an important component of the motor or engine transmission, which can be used to reduce or increase the torque of the motor or engine to meet the needs of the rotating parts. During the use of the gearbox, due to the large friction in the meshing transmission of the gears, lubricating oil is required to lubricate the transmission process of the gears. Common lubrication methods include drip lubrication and immersion lubrication. After searching, the patent number "CN201921263328.7" disclosed a "lubricating oil circulation cooling and filtering device for a gearbox", which includes a base, an end cover, a filter box, an oil pump and a fixed frame. The end cover is provided above the base, the right side wall of the base is provided with a first oil outlet, the right side wall of the end cover is provided with a first oil inlet, the right side of the base is provided with a filter box, and the upper surface of the filter box is provided with an oil pump; the left end of the upper surface of the filter box is provided with a second oil inlet and a third oil inlet, and the bottom of the right side wall of the filter box is provided with a second oil outlet and a third oil outlet. The utility model provides filter paper and magnets in the front cavity of the partition in the filter box to filter iron filings and some impurities in the lubricating oil, and provides a first serpentine tube and a second serpentine tube to cool the lubricating oil, so that the lubricating oil is continuously circulated, cooled and filtered during use, thereby ensuring the stability of the gear transmission, and the provision of the oil guide pipe and the oil leakage port ensures that the gears are always in a lubricated state during use.

[0003] Although this patent solves the problem of high oil temperature, when the oil is pumped out by the oil pump and flows into the filter box, it will generate impact force, which will then collide with the filter box and produce a certain amount of noise. The oil is in continuous circulation, causing the noise of impacting the filter box to become louder and louder, which in turn generates vibration that affects the connection between the pipeline and the filter box, resulting in reduced sealing of the connection. Utility Model Content

[0004] The purpose of the utility model is to provide a novel online oil filter device for a gear box, aiming to solve the problem in the prior art that when the above-mentioned equipment is in use, the oil is pumped into the filter box through the oil pump and flows into the filter box, which generates impact force and then hits the filter box to produce a certain noise. The oil is in continuous circulation, causing the noise of the filter box to become louder and louder, thereby generating vibration that affects the connection between the pipeline and the filter box, resulting in reduced sealing of the connection.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a novel online oil filter device for a gearbox, comprising a gearbox body and a filter box, an oil inlet pipe and a return pipe being installed on one side of the gearbox body, a first oil pump being installed on the surface of the oil inlet pipe, a first solenoid valve being also installed on the surface of the oil inlet pipe away from the first oil pump, a second oil pump being installed on the surface of the return pipe, a second solenoid valve being also installed on the surface of the return pipe away from the second oil pump, a first filter screen and a second filter screen being installed inside the filter box, a magnetic magnet being also installed inside the filter box and between the first filter screen and the second filter screen, and a drain valve being installed on the side wall of the filter box.

[0006] As a preferred embodiment of the novel online oil filter device for a gear box of the present invention, a shell is provided on the outside of the filter box, a threaded rod is connected to the top of the shell, and a water injection hole is opened on the top of the shell.

[0007] As a preferred embodiment of the novel online oil filter device for a gear box of the present invention, the filter box is fixedly connected to the outer shell via a threaded rod.

[0008] As a preferred embodiment of the novel gearbox online oil filter device of the present invention, the filter box and the shell are made of metal, and the size of the shell is larger than that of the filter box.

[0009] As a preferred embodiment of the novel online oil filter device for a gear box of the present invention, the oil inlet pipe and the return pipe pass through the outer shell and are connected to the filter box, and the oil inlet pipe and the return pipe are made of metal.

[0010] As a preferred embodiment of the novel online oil filter device for a gearbox of the present invention, the mesh size of the first filter is larger than the mesh size of the second filter, and the first filter and the second filter are made of metal.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model utilizes the size difference between the outer shell and the filter box to inject clean water into the gap between the outer shell and the filter box, and then the impact vibration of the oil flow on the filter box is transmitted to the vicinity of the water surface. The sound waves will be affected by the reflection and refraction of the water surface, resulting in a change in the direction of sound propagation, thereby playing a role in noise reduction and protecting the connection between the oil inlet pipe and the return pipe and the filter box. At the same time, the threaded rod squeezes the filter box inside the outer shell, and also ensures that the filter box is located in the position of the outer shell, avoiding the movement of the filter box position affecting the connection between the oil inlet pipe and the return pipe and the filter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the housing and the filter box of the present invention;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the internal connection between the housing and the filter box of the utility model;

[0017] Figure 4 This is a schematic diagram of the principle structure of the present utility model.

[0018] In the figure: 1. Gearbox body; 2. Oil inlet pipe; 3. Return pipe; 4. First oil pump; 5. First solenoid valve; 6. Second solenoid valve; 7. Second oil pump; 8. Housing; 9. Threaded rod; 10. Drain valve; 11. Water injection hole; 12. Filter box; 13. First filter screen; 14. Second filter screen; 15. Magnetic iron. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] See also Figure 1-4 The utility model provides the following technical solutions: a novel online oil filtering device for a gearbox, comprising a gearbox body 1 and a filter box 12, an oil inlet pipe 2 and a return pipe 3 are installed on one side of the gearbox body 1, a first oil pump 4 is installed on the surface of the oil inlet pipe 2, a first solenoid valve 5 is also installed on the surface of the oil inlet pipe 2 away from the first oil pump 4, a second oil pump 7 is installed on the surface of the return pipe 3, a second solenoid valve 6 is also installed on the surface of the return pipe 3 away from the second oil pump 7, a first filter screen 13 and a second filter screen 14 are installed inside the filter box 12, a magnetic iron 15 is also installed inside the filter box 12 and between the first filter screen 13 and the second filter screen 14, and a drain valve 10 is installed on the side wall of the filter box 12.

[0022] In the embodiment, reference may be made to Figure 4The oil in the gear box body 1 is started by the first oil pump 4, allowing the oil to flow along the oil inlet pipe 2, and then the first solenoid valve 5 is opened to allow the oil to flow along the oil inlet pipe 2 into the filter box 12, and is filtered through the first filter 13, the magnetic iron 15 and the second filter 14 in the filter box 12. Then, the second oil pump 7 is started to allow the oil to flow along the return pipe 3, and then the second solenoid valve 6 is opened to allow the oil to flow along the return pipe 3 into the gear box body 1, thereby completing the circulation filtration of the oil. The first filter 13 and the second filter 14 in the filter box 12 can filter impurities in the oil, and the magnetic iron 15 can absorb metal debris generated by friction between the meshing rotation of the gears in the gear box body 1.

[0023] It should be noted that the electrical equipment mentioned in the embodiments all belong to existing mature technologies, and the electrical equipment are all connected to corresponding power supply equipment when working, so they will not be described in detail.

[0024] It should be supplemented that: in the embodiment, the oil can be discharged by opening the drain valve 10, and the filtration condition of the oil can be observed through the discharged oil.

[0025] Example 2

[0026] See also Figure 1-3 A shell 8 is provided on the outside of the filter box 12 , a threaded rod 9 is connected to the top of the shell 8 , and a water injection hole 11 is opened on the top of the shell 8 .

[0027] Preferably, the filter box 12 is fixedly connected to the housing 8 via a threaded rod 9 .

[0028] Preferably, the filter box 12 and the housing 8 are made of metal, and the size of the housing 8 is larger than that of the filter box 12 .

[0029] Preferably, the oil inlet pipe 2 and the return pipe 3 pass through the outer shell 8 and are connected to the filter box 12, and the oil inlet pipe 2 and the return pipe 3 are made of metal.

[0030] Preferably, the mesh size of the first filter 13 is larger than the mesh size of the second filter 14 , and the first filter 13 and the second filter 14 are made of metal.

[0031] In the embodiment, the threaded rod 9 is rotated at the top of the housing 8 to lift and lower it, thereby lowering the position of the squeeze filter box 12 inside the housing 8, thereby fixing the filter box 12, and then injecting clean water into the gap between the housing 8 and the filter box 12 through the water injection hole 11, and then the impact vibration of the oil flow on the filter box 12 is transmitted to the vicinity of the water surface. The sound waves will be affected by the reflection and refraction of the water surface, resulting in a change in the direction of sound propagation, thereby playing a role in noise reduction and protection of the connection between the oil inlet pipe 2 and the return pipe 3 and the filter box 12.

[0032] It should be noted that the filter box 12, the outer shell 8, the oil inlet pipe 2, the return pipe 3, the first filter screen 13 and the second filter screen 14 are all made of metal, which increases the corrosion resistance of the filter box 12, the outer shell 8, the oil inlet pipe 2, the return pipe 3, the first filter screen 13 and the second filter screen 14 to avoid being corroded and damaged by oil, which affects normal use.

[0033] Further clarification is required: the operating ambient temperature of the gearbox body 1 is -40 to 50°C, the maximum continuous operating temperature of the bearings must not exceed 95°C, the noise level of the gearbox body 1 should be no greater than 85dB(A), and within the operating speed range of the gearbox body 1, the transmission gear train and shaft system should not resonate. The mechanical vibration of the gearbox body 1 should meet Class C requirements as specified in GB / T8543. This will also reduce the annual failure rate of the gearbox body 1, increase the power generation of the wind turbine, and reduce maintenance costs.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A novel gearbox online oil filter device, comprising a gearbox body (1) and a filter box (12), characterized in that: An oil inlet pipe (2) and a return pipe (3) are installed on one side of the gearbox body (1); a first oil pump (4) is installed on the surface of the oil inlet pipe (2); a first solenoid valve (5) is also installed on the surface of the oil inlet pipe (2) away from the first oil pump (4); a second oil pump (7) is installed on the surface of the return pipe (3); a second solenoid valve (6) is also installed on the surface of the return pipe (3) away from the second oil pump (7); A first filter screen (13) and a second filter screen (14) are installed inside the filter box (12); a magnetic magnet (15) is also installed inside the filter box (12) and between the first filter screen (13) and the second filter screen (14); and a drain valve (10) is installed on the side wall of the filter box (12); An outer shell (8) is provided on the outside of the filter box (12), a threaded rod (9) is connected to the top of the outer shell (8), and a water injection hole (11) is provided at the top of the outer shell (8).

2. A novel gearbox online oil filter device according to claim 1, characterized in that: The filter box (12) is fixedly connected to the outer shell (8) by a threaded rod (9).

3. The novel gearbox online oil filter device according to claim 1 is characterized in that: The filter box (12) and the outer shell (8) are made of metal, and the size of the outer shell (8) is larger than the size of the filter box (12).

4. The novel gearbox online oil filter device according to claim 1 is characterized in that: The oil inlet pipe (2) and the return pipe (3) pass through the outer shell (8) and are connected to the filter box (12), and the oil inlet pipe (2) and the return pipe (3) are made of metal.

5. The novel gearbox online oil filter device according to claim 1 is characterized in that: The mesh size of the first filter (13) is larger than the mesh size of the second filter (14), and the first filter (13) and the second filter (14) are made of metal.

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