Lubricating oil main oil way filter of wind power generation gearbox

Abstract

The utility model discloses a wind power generation gearbox lubricating oil main oil way filter which comprises a filter base, two filter barrel-shaped shells are arranged on the upper surface of the filter base, a double-layer filter element barrel is arranged in the middle of the interior of each filter barrel-shaped shell, and an upper end sealing cover is arranged at the upper end of each filter barrel-shaped shell. The upper end of the double-layer filter element cylinder is connected with the lower surface of the upper end sealing cover in a sealed mode, the lower end of the double-layer filter element cylinder is connected with the upper surface of the filter base in a sealed mode, an oil inlet channel is formed in the filter base, and the oil inlet channel is communicated with a filter cavity between the two filter cylinder-shaped shells and the double-layer filter element cylinder. The wind power generation gearbox lubricating oil main oil way filter is simple in structure and easy and convenient to operate, oil can be filtered for three times, the filtering effect is better, the flow and speed of the oil can be controlled, and non-stop overhauling of the filter element can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation gear box lubricating oil filtering, in particular to a main oil circuit filter of wind power generation gear box lubricating oil. Background Art

[0002] Wind power generation technology has developed rapidly in recent years. Wind power generation uses wind power to drive the wind turbine blades to rotate, converts the kinetic energy of the wind into mechanical kinetic energy, and then increases the speed of rotation through a speed increaser to enable the generator to generate electricity. Wind turbines with gearboxes, especially wind turbines in high-altitude cold areas and offshore wind power operations, usually have gearboxes installed between the low-speed shaft of the wind turbine blades and the high-speed shaft of the generator, connected and transmitting power through a coupling. The gearbox usually consists of a two-stage star shaft, a primary parallel shaft, a transmission gear, etc. The gearbox is provided with an oil tank containing gearbox oil. During the wind turbine power generation process, the gearbox oil is pumped into the gearbox through an oil filter device through a mechanical pump to achieve lubrication and cooling. The oil filter device can prevent impurities in the gearbox oil from entering the gearbox again to damage the tooth surface of the gear, and the lubricating oil inside the gearbox needs to be filtered during operation for recycling, but the existing filter structure is complex, the filtering speed cannot be adjusted, and the machine needs to be shut down when replacing the filter element, and non-stop maintenance cannot be achieved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a main oil circuit filter for the lubricating oil of a wind power generation gearbox. The filter has a simple structure and is easy to operate. Not only can the oil be filtered three times to achieve a better filtering effect, but the flow and speed of the oil can also be controlled, and the filter element can be inspected and repaired without stopping the machine, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a main oil circuit filter of a wind power generation gearbox lubricating oil, comprising a filter base, the upper surface of the filter base is provided with two filter cylindrical shells, a double-layer filter element barrel is provided in the middle of the interior of the filter cylindrical shell, an upper end sealing cover is provided at the upper end of the filter cylindrical shell, the upper end of the double-layer filter element barrel is sealedly connected to the lower surface of the upper end sealing cover, the lower end of the double-layer filter element barrel is sealedly connected to the upper surface of the filter base, an oil inlet channel is provided on the filter base, one oil inlet channel is connected to the filter cavity between the two filter cylindrical shells and the double-layer filter element barrel, two oil outlet channels are provided on the filter base, the two oil outlet channels are connected to the interior of the two double-layer filter element barrels respectively, and a second filter element is provided inside one end of the oil outlet channel connected to the double-layer filter element barrel.

[0005] Furthermore, the second filter element includes a sealing connection ring, which is sealingly connected to the inlet of the oil outlet channel. A filter barrel is fixed to the lower end of the sealing connection ring. When the oil is filtered and discharged through the double-layer filter cartridge, the oil can be filtered again through the filter barrel, making filtering more convenient.

[0006] Furthermore, two one-way cartridge valves are installed on the filter base, and the two one-way cartridge valves correspond to the outlets of the two oil outlet channels respectively. The flow rate of the oil outlet channel can be adjusted by the one-way cartridge valve, and the oil outlet channel controlled by the one-way cartridge valve can be closed. When one oil outlet needs to be used, the other oil outlet channel is closed by the one-way cartridge valve. When the oil outlet speed of the oil outlet channel needs to be controlled, the oil output of the oil outlet channel is controlled by the one-way cartridge valve.

[0007] Furthermore, the double-layer filter cartridge includes an upper connecting ring and a lower connecting ring, and filter screen one and filter screen two are fixed between the upper connecting ring and the lower connecting ring. Filter screen two is located on the outside of filter screen one. By having filter screen two located on filter screen one, the oil can be filtered twice, thereby achieving a better filtering effect.

[0008] Compared with the prior art, the utility model has the following beneficial effects: when the oil is filtered and exported through the double-layer filter cartridge, the oil can be filtered again through the filter barrel, making the filtering more convenient; the flow rate of the oil outlet channel can be adjusted by the one-way cartridge valve, and the oil outlet channel controlled by the one-way cartridge valve can be closed; when one oil outlet needs to be used, the other oil outlet channel is closed by the one-way cartridge valve; when the oil outlet speed of the oil outlet channel needs to be controlled, the oil outlet volume of the oil outlet channel is controlled by the one-way cartridge valve; the oil can be filtered twice by the filter screen 2 located in the filter screen 1, making the filtering effect better; the main oil circuit filter of the lubricating oil of the wind power gearbox has a simple structure and is easy to operate; it can not only filter the oil three times, making the filtering effect better, but also control the flow rate and speed of the oil, and realize non-stop maintenance of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0011] Figure 3 This is a schematic diagram of the double-layer filter cartridge structure of the utility model.

[0012] In the figure: 1 filter base, 2 oil inlet channel, 3 oil outlet channel, 4 second filter element, 41 filter barrel, 42 sealing connecting ring, 5 one-way cartridge valve, 6 filter cylindrical shell, 7 double-layer filter element barrel, 71 upper end connecting ring, 72 lower end connecting ring, 73 filter screen 1, 74 filter screen 2, 8 upper end sealing cover. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] See also Figure 1-3The utility model provides a technical solution: a main oil circuit filter of a wind power generation gearbox lubricating oil, comprising a filter base 1, an upper surface of the filter base 1 is provided with two filter cylindrical shells 6, a double-layer filter cartridge 7 is provided in the middle of the filter cylindrical shell 6, an upper end sealing cover 8 is provided at the upper end of the filter cylindrical shell 6, the upper end of the double-layer filter cartridge 7 is sealed and connected to the lower surface of the upper end sealing cover 8, the lower end of the double-layer filter cartridge 7 is sealed and connected to the upper surface of the filter base 1, an oil inlet channel 2 is provided on the filter base 1, an oil inlet channel 2 is connected to the two filter cartridges 6, and the filter base 1 is provided with an oil inlet channel 2. The filter chambers of the filter cylindrical shell 6 and the double-layer filter cartridge 7 are connected, and two oil outlet channels 3 are provided on the filter base 1. The two oil outlet channels 3 are respectively connected to the inside of the two double-layer filter cartridges 7. A second filter element 4 is provided inside one end of the oil outlet channel 3 connected to the double-layer filter cartridge 7. The second filter element 4 includes a sealing connection ring 42. The sealing connection ring 42 is sealed and connected to the inlet of the oil outlet channel 3. A filter barrel 41 is fixed to the lower end of the sealing connection ring 42. When the oil is filtered and exported through the double-layer filter cartridge 7, the oil can be filtered again through the filter barrel 41. To make filtering more convenient, two one-way cartridge valves 5 are installed on the filter base 1. The two one-way cartridge valves 5 correspond to the outlets of the two oil outlet channels 3 respectively. The flow rate of the oil outlet channel 3 can be adjusted by the one-way cartridge valve 5, and the oil outlet channel 3 controlled by the one-way cartridge valve 5 can be closed. When one oil outlet needs to be used, the other oil outlet channel 3 is closed by the one-way cartridge valve 5. When the oil outlet speed of the oil outlet channel 3 needs to be controlled, the oil outlet amount of the oil outlet channel 3 is controlled by the one-way cartridge valve 5. The double-layer filter element Cylinder 7 includes an upper connecting ring 71 and a lower connecting ring 72, between which filter screen 1 73 and filter screen 2 74 are fixed, filter screen 2 74 is located on the outside of filter screen 1 73, and oil can be filtered twice by filter screen 2 74 being located on filter screen 1 73, so that the filtering effect is better. The main oil circuit filter of the lubricating oil of the wind power generation gearbox has a simple structure and is easy to operate. It can not only filter the oil three times, so that the filtering effect is better, but also control the flow rate and speed of the oil, so that the filter element can be repaired without stopping the machine.

[0015] During use: when the oil is filtered and exported through the double-layer filter cartridge 7, the oil can be filtered again through the filter barrel 41, making the filtering more convenient, the flow rate of the oil outlet channel 3 can be adjusted by the one-way cartridge valve 5, and the oil outlet channel 3 controlled by the one-way cartridge valve 5 can be closed, when one oil outlet needs to be used, the other oil outlet channel 3 is closed by the one-way cartridge valve 5, when the oil outlet speed of the oil outlet channel 3 needs to be controlled, the oil output of the oil outlet channel 3 is controlled by the one-way cartridge valve 5, and the oil can be filtered twice by the filter screen 2 74 located in the filter screen 1 73, so that the filtering effect is better.

[0016] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A main oil line filter for lubricating oil of a wind power generation gearbox, comprising a filter base (1), characterized in that: The filter base (1) is provided with two filter cylindrical shells (6) on the upper surface, a double-layer filter cartridge (7) is provided in the middle of the filter cylindrical shell (6), an upper end sealing cover (8) is provided at the upper end of the filter cylindrical shell (6), the upper end of the double-layer filter cartridge (7) is sealedly connected to the lower surface of the upper end sealing cover (8), the lower end of the double-layer filter cartridge (7) is sealedly connected to the upper surface of the filter base (1), an oil inlet channel (2) is provided on the filter base (1), one oil inlet channel (2) is connected to the filter cavity between the two filter cylindrical shells (6) and the double-layer filter cartridge (7), and two oil outlet channels (3) are provided on the filter base (1), the two oil outlet channels (3) are respectively connected to the inside of the two double-layer filter cartridges (7), and a second filter element (4) is provided inside one end of the oil outlet channel (3) connected to the double-layer filter cartridge (7).

2. A wind power generation gearbox lubricating oil main oil circuit filter according to claim 1, characterized in that: The second filter element (4) comprises a sealing connection ring (42), the sealing connection ring (42) being sealingly connected to the inlet of the oil outlet channel (3), and a filter barrel (41) being fixed to the lower end of the sealing connection ring (42).

3. A wind power generation gearbox lubricating oil main oil circuit filter according to claim 1, characterized in that: Two one-way cartridge valves (5) are installed on the filter base (1), and the two one-way cartridge valves (5) correspond to outlets of two oil outlet channels (3) respectively.

4. A wind power generation gearbox lubricating oil main oil circuit filter according to claim 1, characterized in that: The double-layer filter cartridge (7) comprises an upper connecting ring (71) and a lower connecting ring (72), a filter screen 1 (73) and a filter screen 2 (74) being fixed between the upper connecting ring (71) and the lower connecting ring (72), and the filter screen 2 (74) is located outside the filter screen 1 (73).

Images