CN219796052U - Gear box oil filtering device of wind driven generator - Google Patents

Abstract

The utility model discloses a wind driven generator gear box oil filtering device which comprises a gear box, a flow regulating valve, a filtering component, an oil tank and an oil pump, wherein the gear box is provided with an oil inlet pipe and an oil outlet pipe, the flow regulating valve is connected in series with the oil outlet pipe, the filtering component comprises a filter cylinder, a first circular ring, a filter element and a second circular ring, an opening at the upper end of the filter cylinder is communicated with an outlet of the oil outlet pipe, the first circular ring is coaxially connected in the filter cylinder, the filter element is positioned in the filter cylinder and in interference fit with the first circular ring, the second circular ring is coaxially connected to the upper end of the filter element and is positioned above the first circular ring, the lower end of the second circular ring is tightly attached to the upper end of the first circular ring, the oil tank is provided with an oil inlet communicated with an opening at the lower end of the filter cylinder and an oil outlet communicated with an inlet of the oil inlet pipe, and the oil pump is connected in series with the oil inlet pipe. The utility model is not only convenient for disassembling and installing the wheel core, but also reduces the risk of carelessly dropping the impurity into the filtered lubricating oil when the filter element is disassembled.

Description

Gear box oil filtering device of wind driven generator

Technical Field

The utility model relates to the technical field of wind power generation equipment, in particular to a gear box oil filtering device of a wind power generator.

Background

The gear box in the wind generating set is an important mechanical component, and the main function of the gear box is to transmit the power generated by the wind wheel under the action of wind power to the generator and enable the generator to obtain corresponding rotating speed, the lubricating oil in the gear box is used for reducing friction force between gears and cooling the gears so as to improve the service life of the gear box and reduce the failure rate, but during the operation of the gear box, some fragments and particles are inevitably generated, and are mixed in the lubricating oil to aggravate the abrasion of the gears, and the lubricating oil in the gear box needs to be pumped out through an oil pump and filtered through a filter element, and is conveyed back into the gear box.

In the related art, the filter element is generally directly installed in the pipeline, and when a worker changes the filter element, the pipeline is required to be opened to take out the filter element and install a new filter element, so that the operation is complex, and impurities in the filter element are easy to drop in the pipeline.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the utility model provides the wind driven generator gearbox oil filtering device which is convenient for replacing the filter element and prevents impurities in the filter element from falling into a pipeline when the filter element is taken out.

The gear box oil filtering device of the wind driven generator comprises a gear box, a flow regulating valve, a filtering assembly, an oil tank and an oil pump, wherein the gear box is provided with an oil inlet pipe and an oil outlet pipe, the flow regulating valve is connected in series with the oil outlet pipe, the filtering assembly comprises a filter cylinder, a first circular ring, a filter core and a second circular ring, the axial direction of the filter cylinder is arranged along the vertical direction, an upper end opening of the filter cylinder is communicated with an outlet of the oil outlet pipe, the first circular ring is connected in the filter cylinder and is coaxially arranged with the filter cylinder, the outer diameter of the first circular ring is the same as the inner diameter of the filter cylinder, the filter core is positioned in the filter cylinder and is in interference fit with the first circular ring, the second circular ring is connected to the upper end of the filter core and is coaxially arranged with the filter core, the lower end of the second circular ring is tightly attached to the upper end of the first circular ring, the outer diameter of the second circular ring is the same as the inner diameter of the filter cylinder, the filter cylinder is provided with the oil inlet pipe, the oil inlet pipe is connected with the lower end of the filter cylinder in series, and the oil inlet pipe is communicated with the oil inlet pipe.

According to the gear box oil filtering device of the wind driven generator, through the arrangement of the filtering component, the wheel core is convenient to detach and install, the detached filter cartridge and the filter element are completely separated from the lubricating oil pipeline, and the risk that impurities fall into filtered lubricating oil carelessly when the filter element is detached is reduced.

In some embodiments, the filter assembly further comprises a first pipe, a second pipe, a first valve and a second valve, wherein the oil drain pipe, the first pipe, the filter cartridge, the second pipe and the oil tank are sequentially communicated, the filter cartridge is detachably connected with the first pipe and the second pipe respectively, the first valve is connected in series with the first pipe, and the second valve is connected in series with the second pipe.

In some embodiments, the filter assemblies are plural, and the oil drain pipe is respectively communicated with the plural filter assemblies so that the plural filter assemblies are arranged in parallel.

In some embodiments, the filter assembly further comprises a first quick connector and a second quick connector, the first quick connector is connected to the filter cartridge and located above the second ring, a first end of the first quick connector is in communication with the interior of the filter cartridge, a second end of the first quick connector is adapted to communicate with a gas source, the second quick connector is connected to the filter cartridge and located below the first ring, and a first end of the second quick connector is in communication with the interior of the filter cartridge.

In some embodiments, the filter assembly further comprises a vent valve connected to and above the first conduit.

In some embodiments, the filter assembly further comprises a seal ring connected to and coaxially disposed with the second ring, the seal ring being located between the first ring and the second ring.

In some embodiments, the sealing rings are a plurality of, and the plurality of sealing rings are distributed at intervals along the radial direction of the second circular ring.

In some embodiments, the heat dissipation assembly further comprises a heat dissipation assembly, the heat dissipation assembly comprises a heat dissipation pipe, a heat dissipation box and heat dissipation fins, the heat dissipation assembly is sequentially communicated with the oil tank, at least part of the heat dissipation pipe is located in the heat dissipation box, the heat dissipation fins are sleeved on the heat dissipation pipe and located in the heat dissipation box, the heat dissipation fins are multiple, and the heat dissipation fins are distributed along the axial direction of the heat dissipation pipe at intervals.

In some embodiments, the heat dissipation assembly further comprises a heat dissipation fan, wherein the heat dissipation fan is connected to the heat dissipation box and is communicated with the inside of the heat dissipation box, and a plurality of heat dissipation holes are formed in the side wall of the heat dissipation box.

In some embodiments, the heat dissipating assembly further comprises a water inlet pipe and a water outlet pipe, the heat dissipating box is provided with a water inlet and a water outlet, the inlet of the water inlet pipe is suitable for being communicated with a water source, the outlet of the water inlet pipe is communicated with the water inlet, and the inlet of the water outlet pipe is communicated with the water outlet.

Drawings

FIG. 1 is a schematic view of a wind turbine gearbox oil filter assembly according to an embodiment of the present utility model.

Fig. 2 is a perspective view showing the internal partial structure of the filter cartridge according to the embodiment of the present utility model.

Fig. 3 is a schematic perspective view of a heat dissipation structure according to an embodiment of the utility model.

Fig. 4 is a schematic perspective view of a heat dissipating structure according to another embodiment of the present utility model.

Reference numerals:

a gear box 1; an oil inlet pipe 11; an oil drain pipe 12;

a flow rate regulating valve 2;

a filter assembly 3; a filter cartridge 301; a first ring 302; a filter element 303; a second ring 304; a first conduit 305; a second conduit 306; a first valve 307; a second valve 308; a first quick connector 309; a second quick connector 310; an exhaust valve 311; a seal ring 312;

an oil tank 4;

an oil pump 5;

a heat dissipation assembly 6; a radiating pipe 61; a heat radiation box 62; a heat radiation hole 621; a heat sink 63; a water inlet pipe 64; and a drain pipe 65.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The following describes an oil filtering device of a gear box 1 of a wind driven generator according to an embodiment of the present utility model with reference to the accompanying drawings.

As shown in fig. 1 and 2, an embodiment of the present utility model includes a gear case 1, a flow rate adjusting valve 2, a filter assembly 3, a tank 4, and an oil pump 5.

The gear box 1 is provided with an oil inlet pipe 11 and an oil outlet pipe 12, wherein an outlet of the oil inlet pipe 11 and an inlet of the oil outlet pipe 12 are communicated with the interior of the gear box 1, filtered lubricating oil enters the gear box 1 through the oil inlet pipe 11, and the lubricating oil in the gear box 1 is discharged out of the gear box 1 through the oil outlet pipe 12.

The flow regulating valve 2 is connected in series with the oil discharge pipe 12, and the flow regulating valve 2 is used for regulating the flow of the lubricating oil discharged from the oil discharge pipe to the gear box 1, so that abnormal abrasion of gears or even burning of the gears caused by insufficient lubricating oil in the gear box 1 due to overlarge flow of the lubricating oil discharged from the gear box 1 is avoided.

The filter assembly 3 comprises a filter cartridge 301, a first circular ring 302, a filter element 303 and a second circular ring 304, wherein the axial direction of the filter cartridge 301 is arranged along the up-down direction, an upper end opening of the filter cartridge 301 is communicated with an outlet of the oil drain pipe 12, lubricating oil in the oil drain pipe 12 enters the filter cartridge 301 through the upper end of the filter cartridge 301, the first circular ring 302 is connected in the filter cartridge 301 and is coaxially arranged with the filter cartridge 301, the outer diameter of the first circular ring 302 is the same as the inner diameter of the filter cartridge 301, the filter element 303 is positioned in the filter cartridge 301, the outer diameter of the upper part of the filter element 303 is larger than the outer diameter of the lower part of the filter element 303, the filter element 303 is arranged in the first circular ring 302 and is in interference fit with the first circular ring 302, so that large static friction force exists between the filter element 303 and the first circular ring 302, the risk of falling off of the filter element 303 is reduced, the second circular ring 304 is connected to the upper end of the filter element 303 and is coaxially arranged with the filter element 303, the second circular ring 304 is positioned above the first circular ring 302, the lower end of the second circular ring 304 is closely fitted with the upper end of the first circular ring 304, and the inner diameter of the filter element 304 is the same as the outer diameter of the filter element 301.

The oil tank 4 is provided with an oil inlet (not shown) and an oil discharge port (not shown), the oil inlet is communicated with the lower end opening of the filter cylinder 301, lubricating oil filtered by the filter core 303 enters the oil tank 4 through the oil inlet for storage, the inlet of the oil inlet pipe 11 is communicated with the oil discharge port, the oil pump 5 is connected in series with the oil inlet pipe 11, and the oil pump 5 pumps the lubricating oil pump 5 in the oil tank 4 into the gear box 1 through the oil inlet pipe 11.

When the filter element 303 needs to be replaced, the flow control valve 2 is closed, lubricating oil in the filter element 301 is discharged, after the filter element 301 is cooled, the filter element 301 is detached from the oil drain pipe 12 and the oil tank 4 respectively, the filter element 303 can be detached from the filter element 301 by applying pushing force or pulling force to the filter element 303 by using a tool, a new filter element 303 is placed into the filter element 301 from the upper end of the filter element 301 after cleaning the filter element 301, and the filter element 303 can be installed by applying pulling force or pushing force to the filter element 303 by using the tool, so that the filter element 303 is convenient to detach and install, or the new filter element 303 is installed on the new filter element 301 in advance, and the new filter element 301 is directly installed after the old filter element 301 is detached, so that the downtime is reduced; moreover, since the filter cartridge 301 is completely separated from the oil drain pipe 12 and the oil tank 4, the risk of inadvertently dropping impurities into the filtered lubricating oil when the filter cartridge 303 is removed is reduced.

According to the oil filtering device of the wind driven generator gearbox 1, through the arrangement of the filtering component 3, the wheel core is convenient to detach and install, the detached filter cartridge 301 and the filter core 303 are completely separated from the lubricating oil pipeline, and the risk that impurities fall into the filtered lubricating oil carelessly when the filter core 303 is detached is reduced.

Alternatively, the outlet of the oil inlet pipe 11 is located above the inlet of the oil drain pipe 12, and the outlet of the oil inlet pipe 11 is located at the upper part of the gear box 1, the inlet of the oil drain pipe 12 is located at the lower part of the gear box 1, the lubricating oil in the oil drain pipe 12 enters the gear box 1 from the upper part of the gear box 1, and the lubricating oil in the gear box 1 is discharged from the liquid drain pipe to the gear box 1 under the action of gravity.

Optionally, the filter cartridge 301 is integrally formed with the first ring 302, and the filter cartridge 303 is integrally formed with the second ring 304.

Optionally, the oil inlet is located at the upper part of the oil tank 4, and the oil drain is located at the lower part of the oil tank 4.

As shown in fig. 1, in some embodiments, the filter assembly 3 further includes a first pipe 305, a second pipe 306, a first valve 307, and a second valve 308, where the oil drain pipe 12, the first pipe 305, the filter cartridge 301, the second pipe 306, and the oil tank 4 are sequentially connected, the filter cartridge 301 is detachably connected to the first pipe 305 and the second pipe 306, the first valve 307 is connected in series to the first pipe 305, and the second valve 308 is connected in series to the second pipe 306.

When the filter element 303 needs to be replaced, the first valve 307 is closed, the second valve 308 is closed after the lubricating oil in the filter cartridge 301 and the second pipe 306 is discharged, and the first valve 307 and the second valve 308 prevent impurities from being mixed into the lubricating oil.

Optionally, the filter cartridge 301 is detachably connected to the first pipe 305 by a flange, or the filter cartridge 301 is screwed to the first pipe 305.

Optionally, the filter cartridge 301 is detachably connected to the second pipe 306 by a flange, or the filter cartridge 301 is screwed to the second pipe 306.

Further, as shown in fig. 1, there are a plurality of filter assemblies 3, and oil drain pipes 12 are respectively communicated with the plurality of filter assemblies 3 so that the plurality of filter assemblies 3 are arranged in parallel.

It can be appreciated that when the filter element 303 needs to be replaced, only the first valve 307 and the second valve 308 on the corresponding branches are required to be closed, and the first valve 307 and the second valve 308 on the other branches do not need to be closed, so that the generator set does not need to be stopped when the filter element 303 is replaced, and the efficiency of the generator set is ensured.

As shown in fig. 2, in some embodiments, the filter assembly 3 further includes a first quick connector 309 and a second quick connector 310, the first quick connector 309 being connected to the filter cartridge 301 and positioned above the second ring 304, a first end (a front end as shown in fig. 2) of the first quick connector 309 being in communication with the interior of the filter cartridge 301, a second end of the first quick connector 309 being adapted to be in communication with a gas source, the second quick connector 310 being connected to the filter cartridge 301 and positioned below the first ring 302, a first end (a front end as shown in fig. 2) of the second quick connector 310 being in communication with the interior of the filter cartridge 301.

When the filter element 303 needs to be replaced, the first valve 307 is closed, the first quick connector 309 is communicated with the air source, so that the lubricating oil in the filter element 301 and the second pipeline 306 is discharged, and then the air pipe is communicated with the second quick connector 310, so that the air enters the filter element 301 from the first quick connector 309 and is discharged from the second quick connector 310 to take out the heat in the filter element 301, and the cooling of the filter element 301 is accelerated to reduce the time for replacing the filter element 303.

As shown in fig. 1, in some embodiments, the filter assembly 3 further includes a vent valve 311, where the vent valve 311 is connected to the first pipe 305 and located above the first pipe 305, and the vent valve 311 is configured to vent gas accumulated in the first pipe 305, so as to reduce adverse effects of the gas on the pipe and the lubricating oil.

As shown in fig. 2, in some embodiments, the filter assembly 3 further includes a seal ring 312, where the seal ring 312 is connected to the second ring 304 and coaxially disposed with the second ring 304, and the seal ring 312 is located between the first ring 302 and the second ring 304 to improve the tightness between the first ring 302 and the second ring 304.

Further, there are a plurality of sealing rings 312, and the plurality of sealing rings 312 are distributed along the radial direction of the second ring 304 at intervals.

As shown in fig. 1, 3 and 4, in some embodiments, the heat dissipation device further includes a heat dissipation device 6, where the heat dissipation device 6 includes a heat dissipation tube 61, a heat dissipation box 62 and a heat dissipation fin 63, the filter device 3, the heat dissipation tube 61 and the oil tank 4 are sequentially communicated, at least part of the heat dissipation tube 61 is located in the heat dissipation box 62, the heat dissipation fin 63 is sleeved on the heat dissipation tube 61 and located in the heat dissipation box 62, and the heat dissipation fins 63 are multiple and distributed at intervals along the axial direction of the heat dissipation tube 61.

It will be appreciated that by the arrangement of the cooling tube 61 and the cooling fin 63, cooling of the lubricating oil is accelerated.

As shown in fig. 3, optionally, the heat dissipation assembly 6 further includes a heat dissipation fan (not shown) connected to the heat dissipation box 62 and communicating with the interior of the heat dissipation box 62, and a plurality of heat dissipation holes 621 are formed on a side wall of the heat dissipation box 62.

It will be appreciated that the cooling of the lubricating oil is accelerated by the heat fan and the heat sink 621 discharging the hot air in the vicinity of the heat sink 63 out of the heat sink box 62.

As shown in fig. 4, optionally, the heat dissipating assembly 6 further includes a water inlet pipe 64 and a water outlet pipe 65, the heat dissipating box 62 is provided with a water inlet and a water outlet, the inlet of the water inlet pipe 64 is adapted to be communicated with a water source, the outlet of the water inlet pipe 64 is communicated with the water inlet, and the inlet of the water outlet pipe 65 is communicated with the water outlet.

It will be appreciated that cooling water enters the heat dissipating tank 62 through the water inlet pipe 64 and contacts the cooling fins 63, and the cooling fins 63 transfer heat of the lubricating oil to the cooling water to cool the lubricating oil.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (10)

1. A wind turbine gearbox oil filtration device, comprising:

the gear box is provided with an oil inlet pipe and an oil outlet pipe;

the flow regulating valve is connected in series with the oil discharge pipe;

the filter assembly comprises a filter cartridge, a first circular ring, a filter element and a second circular ring, wherein the axial direction of the filter cartridge is arranged along the up-down direction, an opening at the upper end of the filter cartridge is communicated with an outlet of the oil discharge pipe, the first circular ring is connected in the filter cartridge and is coaxially arranged with the filter cartridge, the outer diameter of the first circular ring is identical to the inner diameter of the filter cartridge, the filter element is positioned in the filter cartridge and is in interference fit with the first circular ring, the second circular ring is connected to the upper end of the filter element and is coaxially arranged with the filter element, the second circular ring is positioned above the first circular ring, the lower end of the second circular ring is tightly attached to the upper end of the first circular ring, and the outer diameter of the second circular ring is identical to the inner diameter of the filter cartridge;

the oil tank is provided with an oil inlet and an oil discharge port, the oil inlet is communicated with the opening at the lower end of the filter cylinder, the inlet of the oil inlet pipe is communicated with the oil discharge port, and the oil pump is connected in series with the oil inlet pipe.

2. The wind turbine gearbox oil filter device of claim 1, wherein the filter assembly further comprises a first pipeline, a second pipeline, a first valve and a second valve, the oil drain pipe, the first pipeline, the filter cartridge, the second pipeline and the oil tank are sequentially communicated, the filter cartridge is detachably connected with the first pipeline and the second pipeline respectively, the first valve is connected in series with the first pipeline, and the second valve is connected in series with the second pipeline.

3. The wind turbine gearbox oil filter assembly of claim 2, wherein a plurality of said filter assemblies are provided, said oil drain pipes respectively communicating with a plurality of said first pipes such that a plurality of said filter assemblies are disposed in parallel.

4. A wind turbine gearbox oil filtration device according to claim 2 or 3, wherein the filtration assembly further comprises a first quick connector and a second quick connector, the first quick connector being connected to the filter cartridge and located above the second ring, a first end of the first quick connector being in communication with the interior of the filter cartridge, a second end of the first quick connector being adapted to communicate with a gas source, the second quick connector being connected to the filter cartridge and located below the first ring, a first end of the second quick connector being in communication with the interior of the filter cartridge.

5. The wind turbine gearbox oil filter assembly of claim 4 wherein said filter assembly further comprises a vent valve connected to and above said first conduit.

6. A wind turbine gearbox oil filter arrangement according to any of claims 1-3, wherein said filter assembly further comprises a sealing ring connected to and coaxially arranged with said second ring, said sealing ring being located between said first ring and said second ring.

7. The wind turbine gearbox oil filter assembly of claim 6, wherein a plurality of said seal rings are radially spaced apart from said second ring.

8. A wind turbine gearbox oil filter according to any of claims 1-3, further comprising a heat dissipation assembly, wherein the heat dissipation assembly comprises a heat dissipation tube, a heat dissipation box and heat dissipation fins, the heat dissipation assembly, the heat dissipation tube and the oil box are sequentially communicated, at least part of the heat dissipation tube is located in the heat dissipation box, the heat dissipation fins are sleeved on the heat dissipation tube and located in the heat dissipation box, and a plurality of heat dissipation fins are distributed at intervals along the axial direction of the heat dissipation tube.

9. The wind turbine gearbox oil filter device of claim 8, wherein the heat dissipation assembly further comprises a heat dissipation fan connected to the heat dissipation box and communicated with the inside of the heat dissipation box, and a plurality of heat dissipation holes are formed in the side wall of the heat dissipation box.

10. The wind turbine gearbox oil filter device of claim 8, wherein the heat dissipation assembly further comprises a water inlet pipe and a water outlet pipe, the heat dissipation box is provided with a water inlet and a water outlet, the inlet of the water inlet pipe is suitable for being communicated with a water source, the outlet of the water inlet pipe is communicated with the water inlet, and the inlet of the water outlet pipe is communicated with the water outlet.