Integrated thin oil filtering device of wind power gear box

Abstract

The utility model discloses an integrated thin oil filtering device of a wind power gear box, which comprises a filter and a temperature control valve group, the filter is provided with a plurality of oil inlets and four oil outlets, the upper end of the filter is provided with an exhaust port, the plurality of oil inlets are communicated with an inlet of a filtering chamber, the temperature control valve group is arranged on the filter, and the four oil outlets are communicated with the exhaust port. The temperature control valve block comprises a first temperature control three-way adjusting valve and a second temperature control three-way adjusting valve, the exhaust port is communicated with a first outlet of the first temperature control three-way adjusting valve or the second temperature control three-way adjusting valve, and the output end of the cooler is communicated with the gearbox. According to the utility model, the temperature control valve block, the oil inlet, the oil outlet, the exhaust port and other parts or structures are integrated on the filter, so that the structure is more compact, the required installation space is smaller, and the integration of the product is improved; in addition, gas exhausted from the exhaust port is exhausted into the gear box through two oil outlets and then is exhausted, so that damage to the exhaust pipe due to vibration of the gear box is reduced, and the reliability of a product is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lubrication of a wind turbine gearbox, and in particular relates to an integrated thin oil filtering device for a wind turbine gearbox. Background Art

[0002] In the lubrication system of the gearbox of a wind turbine generator set, the filter device plays a role in filtering and cleaning the lubricating oil circulating inside the gearbox, and is an important component in the lubrication system of the wind turbine gearbox. In recent years, the megawatt level of wind turbines has developed towards large megawatts, and the flow rate of the gearbox lubrication system has increased, which has increased the total mass of the lubrication system products and the required installation space, which is inconsistent with the reduction of the internal space of the cabin. At the same time, in actual use, the exhaust pipe of the filter device is often damaged, which leads to increased maintenance costs. Utility Model Content

[0003] In order to overcome the defects of the prior art, the utility model provides an integrated thin oil filtering device for a wind power gear box, which can improve integration and reliability.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] An integrated thin oil filtering device for a wind power gearbox, comprising:

[0006] A filter, wherein a filter chamber is arranged in the filter, a plurality of oil inlets and four oil outlets are arranged on the filter, an exhaust port is arranged at the upper end of the filter, and the plurality of oil inlets are all connected with the inlet of the filter chamber;

[0007] A temperature control valve block, the temperature control valve block is arranged on the filter, the temperature control valve block comprises a first temperature control three-way regulating valve and a second temperature control three-way regulating valve, the inlets of the first temperature control three-way regulating valve and the second temperature control three-way regulating valve are both connected to the outlet of the filter chamber, the first outlets of the first temperature control three-way regulating valve and the second temperature control three-way regulating valve are both connected to the gear box through two oil outlets, the second outlets of the first temperature control three-way regulating valve and the second temperature control three-way regulating valve are both connected to the cooler through the other two oil outlets, and the temperature detection ends of the first temperature control three-way regulating valve and the second temperature control three-way regulating valve are respectively connected to the inlets of the first temperature control three-way regulating valve and the second temperature control three-way regulating valve;

[0008] The exhaust port is connected to the first outlet of the first temperature-controlled three-way regulating valve or the second temperature-controlled three-way regulating valve, and the output end of the cooler is connected to the gear box.

[0009] In one embodiment, a one-way valve is provided at the oil inlet.

[0010] The beneficial effect of adopting the above technical solution is: a one-way valve is arranged at the oil inlet to prevent the lubricating oil from flowing back and impacting the pump while buffering the impact of the lubricating oil on the filter element.

[0011] In one embodiment, the filter includes a cylinder with a filter chamber, a first cover body sealed with the lower end of the cylinder, and a second cover body sealed with the upper end of the cylinder. A bushing is fixedly connected in the cylinder, and a filter element and a one-way valve are fixedly connected to the bushing.

[0012] The beneficial effects of adopting the above technical solution are: the cylinder, the first cover body and the second cover body are assembled to form a closed filter; the cylinder can be installed with a one-way valve through the bushing and the filter element can be positioned and installed at the same time.

[0013] In one embodiment, the cylinder is an aluminum alloy cylinder, the first cover body and the second cover body are both aluminum alloy covers, and the temperature control valve block is an aluminum alloy valve block.

[0014] The beneficial effects of adopting the above technical solution are: the cylinder is an aluminum alloy cylinder, the first cover body and the second cover body are both aluminum alloy covers, and the temperature control valve block is an aluminum alloy valve block, that is, these components are all made of aluminum alloy to achieve the purpose of small size and light weight, which is conducive to achieving lightweight of the product.

[0015] In one embodiment, an exhaust port is provided on the second cover body, an interface for communicating with the first outlet of the first temperature control three-way regulating valve or the second temperature control three-way regulating valve is provided on the temperature control valve block, and a hose is provided between the exhaust port and the interface.

[0016] The beneficial effect of adopting the above technical solution is that the exhaust port discharges the gas from the hose into the interface of the temperature control valve block, thereby facilitating the gas to be discharged from the two oil outlets to the gear box.

[0017] In one embodiment, the first temperature-controlled three-way regulating valve includes a first three-way regulating valve and a first temperature-sensitive bag for sensing the temperature of the lubricating oil in the first three-way regulating valve, and the first temperature-sensitive bag acts on the valve core in the first three-way regulating valve. The second temperature-controlled three-way regulating valve includes a second three-way regulating valve and a second temperature-sensitive bag for sensing the temperature of the lubricating oil in the second three-way regulating valve, and the second temperature-sensitive bag acts on the valve core in the second three-way regulating valve.

[0018] The beneficial effects of adopting the above technical solution are as follows: the first temperature-sensing package is affected by the temperature rise of the lubricating oil in the first three-way regulating valve, and will expand to act on the valve core in the first three-way regulating valve, thereby realizing the state adjustment of the first three-way regulating valve; the second temperature-sensing package is affected by the temperature rise of the lubricating oil in the second three-way regulating valve, and will expand to act on the valve core in the second three-way regulating valve, thereby realizing the state adjustment of the second three-way regulating valve; by adjusting the states of the first three-way regulating valve and the second three-way regulating valve, it is convenient to allow the lubricating oil to enter the cooler through the two oil outlets and then be discharged into the gear box when the temperature of the lubricating oil is high.

[0019] In one embodiment, a differential pressure transmitter is provided on the temperature control valve block, and two detection ends of the differential pressure transmitter are respectively connected to the inlet and the outlet of the filter chamber.

[0020] The beneficial effect of adopting the above technical solution is that the two detection ends of the pressure difference transmitter are respectively connected to the inlet and outlet of the filter chamber to send out an electrical signal when the pressure difference between the inlet and outlet of the filter chamber is large, thereby reminding to replace the filter element.

[0021] In one embodiment, two first connectors for installing a pressure gauge are provided on the temperature control valve block, and the inner sides of the two first connectors are respectively connected to the inlet and the outlet of the filter chamber.

[0022] The beneficial effect of adopting the above technical solution is that after the pressure gauge is connected to the first joint, the pressure at the inlet and the pressure at the outlet of the filter chamber can be measured by the pressure gauge.

[0023] In one embodiment, two second connectors for installing a particle counter are provided on the temperature control valve block, and the inner sides of the two second connectors are respectively connected to the inlet and the outlet of the filter chamber.

[0024] The beneficial effect of adopting the above technical solution is that after the particle counter is connected to the second joint, the cleanliness of the lubricating oil at the inlet and outlet of the filter chamber can be measured by the particle counter.

[0025] In one embodiment, a drain ball valve communicating with an upper inlet of the filter chamber is disposed at the lower portion of the filter.

[0026] The beneficial effect of adopting the above technical solution is that after the drain ball valve is opened, the dirt filtered by the filter element in the filter chamber and the dirt that may exist in the temperature control valve block can be easily discharged.

[0027] The beneficial effects of the utility model are:

[0028] The utility model integrates the temperature control valve block, the oil inlet, the oil outlet and the exhaust port and other components or structures on the filter, so as to make the structure more compact and require a smaller installation space, which is beneficial to improving the integration of the product; in addition, the gas discharged from the exhaust port is discharged into the gear box through two of the oil outlets and then discharged, rather than being directly discharged through the exhaust pipe connected to the gear box, which is beneficial to reducing the occurrence of damage to the exhaust pipe due to vibration of the gear box, thereby helping to improve the reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0030] in:

[0031] Figure 1 A schematic structural diagram of an embodiment of the utility model is shown;

[0032] Figure 2 The schematic diagram of the utility model is shown;

[0033] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0034] Reference numerals:

[0035] 1-cylinder, 2-second cover, 3-exhaust port, 4-hose, 5-pressure gauge, 6-oil inlet, 7-pressure differential transmitter, 8-drain ball valve, 9-temperature control valve block, 10-first temperature control three-way regulating valve, 11-second temperature control three-way regulating valve, 12-filter, 13-oil outlet. DETAILED DESCRIPTION

[0036] The utility model will be further described below in conjunction with the accompanying drawings.

[0037] The utility model provides an integrated thin oil filtering device for a wind turbine gearbox, such as Figure 1 and Figure 2 As shown, it includes:

[0038] A filter 12, wherein a filter chamber is provided in the filter 12, three oil inlets 6 and four oil outlets 13 are provided on the filter 12, an exhaust port 3 is provided at the upper end of the filter 12, and the plurality of oil inlets 6 are communicated with the inlet of the filter chamber;

[0039] The temperature control valve block 9 is arranged on the filter 12. The temperature control valve block 9 includes a first temperature control three-way regulating valve 10 and a second temperature control three-way regulating valve 11. The inlets of the first temperature control three-way regulating valve 10 and the second temperature control three-way regulating valve 11 are both connected to the outlet of the filter chamber. The first outlets of the first temperature control three-way regulating valve 10 and the second temperature control three-way regulating valve 11 are both connected to the gear box through two oil outlets 13. The second outlets of the first temperature control three-way regulating valve 10 and the second temperature control three-way regulating valve 11 are both connected to the cooler through another two oil outlets 13. The temperature detection ends of the first temperature control three-way regulating valve 10 and the second temperature control three-way regulating valve 11 are respectively connected to the inlets of the first temperature control three-way regulating valve 10 and the second temperature control three-way regulating valve 11;

[0040] The exhaust port 3 is connected to the first outlet of the first temperature-controlled three-way regulating valve 10 or the second temperature-controlled three-way regulating valve 11 , and the output end of the cooler is connected to the gear box.

[0041] It can be understood that the utility model integrates components or structures such as the temperature control valve block 9, the oil inlet 6, the oil outlet 13 and the exhaust port 3 on the filter 12, so as to make the structure more compact and require a smaller installation space, which is beneficial to improving the integration of the product; in addition, the gas discharged from the exhaust port 3 is discharged into the gear box through two of the oil outlets 13 and then discharged, rather than being directly discharged through the exhaust pipe connected to the gear box, which is beneficial to reduce the occurrence of damage to the exhaust pipe due to vibration of the gear box, thereby helping to improve the reliability of the product.

[0042] It should be noted that the utility model can adapt to different oil inlet and outlet positions of wind power gearboxes, and the product can be connected in series through existing structures to be compatible with larger megawatt-level lubricating oil cleaning and filtration requirements.

[0043] In one embodiment, a one-way valve is provided at the oil inlet 6 .

[0044] It is understandable that a one-way valve is provided at the oil inlet 6 to prevent the lubricating oil from flowing back to impact the pump and to buffer the impact of the lubricating oil on the filter element.

[0045] In one embodiment, the filter 12 includes a cylinder 1 provided with a filter chamber, a first cover body sealedly connected to the lower end of the cylinder 1, and a second cover body 2 sealedly connected to the upper end of the cylinder 1. A bushing is fixedly connected inside the cylinder 1, a one-way valve is fixedly connected to the bushing and a filter element is positioned and installed.

[0046] It can be understood that the cylinder 1, the first cover body and the second cover body 2 are assembled to form a closed filter 12; the cylinder 1 can be used to install the one-way valve through the bushing and can also position and install the filter element.

[0047] It should be noted that the three oil inlets 6 are all arranged at the lower front end of the filter 12, and the three oil inlets 6 are connected in the filter chamber so that the lubricating oil can be filtered by the filter element no matter which oil inlet 6 it enters from; the two oil outlets 13 are interconnected and arranged at the lower left side of the filter 12, and the other two oil outlets 13 are interconnected and arranged at the lower right side of the filter 12.

[0048] It should also be noted that the one-way valve is arranged in the bushing, and the bushing is interference fit with the inside of the cylinder 1, and the filter element is installed on the bushing to achieve sealing and positioning.

[0049] In one embodiment, the cylinder 1 is an aluminum alloy cylinder, the first cover body and the second cover body 2 are both aluminum alloy covers, and the temperature control valve block 9 is an aluminum alloy valve block.

[0050] It can be understood that the cylinder 1 is an aluminum alloy cylinder, the first cover body and the second cover body 2 are both aluminum alloy covers, and the temperature control valve block 9 is an aluminum alloy valve block, that is, these components are all made of aluminum alloy to achieve the purpose of small size and light weight, which is conducive to achieving lightweight products.

[0051] It should be noted that the cylinder 1, the first cover body, the second cover body 2, the bushing and the temperature control valve block 9 can all be cast from aluminum alloy; the second cover body 2 is connected to the upper end of the cylinder 1 by bolts; in addition, the temperature control valve block 9 is made of aluminum alloy as a whole, and the flow channel structure is designed to avoid large pressure losses under the operating conditions of the gearbox, so as to improve the oil circulation efficiency.

[0052] In one embodiment, an exhaust port 3 is provided on the second cover body 2, an interface for connecting with the first outlet of the first temperature-controlled three-way regulating valve 10 or the second temperature-controlled three-way regulating valve 11 is provided on the temperature-controlled valve block 9, and a hose 4 is provided between the exhaust port 3 and the interface.

[0053] It can be understood that the exhaust port 3 discharges the gas from the hose 4 into the interface of the temperature control valve block 9, thereby facilitating the gas to be discharged from the two oil outlets 13 to the gear box.

[0054] In one embodiment, the first temperature-controlled three-way regulating valve 10 includes a first three-way regulating valve and a first temperature-sensitive bag for sensing the temperature of the lubricating oil in the first three-way regulating valve, and the first temperature-sensitive bag acts on the valve core in the first three-way regulating valve. The second temperature-controlled three-way regulating valve 11 includes a second three-way regulating valve and a second temperature-sensitive bag for sensing the temperature of the lubricating oil in the second three-way regulating valve, and the second temperature-sensitive bag acts on the valve core in the second three-way regulating valve.

[0055] It can be understood that the first temperature-sensing package will expand due to the temperature rise of the lubricating oil in the first three-way regulating valve, so as to act on the valve core in the first three-way regulating valve, thereby realizing the state adjustment of the first three-way regulating valve; the second temperature-sensing package will expand due to the temperature rise of the lubricating oil in the second three-way regulating valve, so as to act on the valve core in the second three-way regulating valve, thereby realizing the state adjustment of the second three-way regulating valve; by adjusting the states of the first three-way regulating valve and the second three-way regulating valve, it is convenient to allow the lubricating oil to enter the cooler through the two oil outlets 13 and then be discharged into the gear box when the temperature of the lubricating oil is high.

[0056] It should be noted that temperature-sensitive materials are arranged in the first temperature sensing package and the second temperature sensing package, and the first temperature sensing package and the second temperature sensing package can indirectly act on the valve cores in the first three-way regulating valve and the second three-way regulating valve respectively through the springs in the first three-way regulating valve and the second three-way regulating valve.

[0057] Specifically, when the detected lubricating oil temperature is less than 45°C, the outlet of the first electric three-way regulating valve is connected to its first outlet and second outlet, and the outlet of the second electric three-way regulating valve is connected to its first outlet and second outlet, that is, the lubricating oil enters the gearbox through the two oil outlets 13, and also enters the cooler through the other two oil outlets 13; when the temperature is not less than 45°C, the first electric three-way regulating valve and the second electric three-way regulating valve start to operate, so that the flow rate from the outlet of the first electric three-way regulating valve to the first outlet gradually decreases until it tends to be completely closed, and at the same time, the flow rate from the outlet of the second electric three-way regulating valve to the first outlet gradually decreases until it tends to be completely closed, so that the lubricating oil enters the cooler from the second outlets of the first electric three-way regulating valve and the second electric three-way regulating valve for cooling and then enters the gearbox.

[0058] In one embodiment, a differential pressure transmitter 7 is provided on the temperature control valve block 9, and two detection ends of the differential pressure transmitter 7 are respectively connected to the inlet and the outlet of the filter chamber.

[0059] It can be understood that the two detection ends of the pressure difference transmitter 7 are respectively connected to the inlet and outlet of the filter chamber, so as to send out an electrical signal when the pressure difference between the inlet and outlet of the filter chamber is large, thereby reminding to replace the filter element.

[0060] In one embodiment, two first connectors for installing the pressure gauge 5 are provided on the temperature control valve block 9, and the inner sides of the two first connectors are respectively connected to the inlet and the outlet of the filter chamber.

[0061] It can be understood that after the pressure gauge 5 is connected to the first joint, the pressure at the inlet and the pressure at the outlet of the filter chamber can be measured by the pressure gauge.

[0062] In one embodiment, two second connectors for installing a particle counter are provided on the temperature control valve block 9, and the inner sides of the two second connectors are respectively connected to the inlet and the outlet of the filter chamber.

[0063] It can be understood that after the particle counter is connected to the second joint, the cleanliness of the lubricating oil at the inlet and outlet of the filter chamber can be measured by the particle counter.

[0064] In one embodiment, a sewage ball valve 8 communicating with the upper inlet of the filter chamber is disposed at the lower left side of the filter 12 .

[0065] It can be understood that after the drain ball valve 8 is opened, the dirt filtered by the filter element in the filter chamber and the dirt that may exist in the temperature control valve block 9 can be easily discharged.

[0066] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0067] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. An integrated thin oil filter device for a wind turbine gearbox, characterized in that: include: A filter (12), wherein a filter chamber is arranged in the filter (12), a plurality of oil inlets (6) and four oil outlets (13) are arranged on the filter (12), an exhaust port (3) is arranged at the upper end of the filter (12), and the plurality of oil inlets (6) are all in communication with the inlet of the filter chamber; A temperature control valve block (9), the temperature control valve block (9) being arranged on the filter (12), the temperature control valve block (9) comprising a first temperature control three-way regulating valve (10) and a second temperature control three-way regulating valve (11), the inlets of the first temperature control three-way regulating valve (10) and the second temperature control three-way regulating valve (11) being both connected to the outlet of the filter chamber, the first outlets of the first temperature control three-way regulating valve (10) and the second temperature control three-way regulating valve (11) being both connected to a gear box through two oil outlets (13), the second outlets of the first temperature control three-way regulating valve (10) and the second temperature control three-way regulating valve (11) being both connected to a cooler through another two oil outlets (13), and the temperature detection ends of the first temperature control three-way regulating valve (10) and the second temperature control three-way regulating valve (11) being respectively connected to the inlets of the first temperature control three-way regulating valve (10) and the second temperature control three-way regulating valve (11); The exhaust port (3) is connected to the first outlet of the first temperature-controlled three-way regulating valve (10) or the second temperature-controlled three-way regulating valve (11), and the output end of the cooler is connected to the gear box.

2. The wind turbine gearbox integrated oil filter device according to claim 1, characterized in that: A one-way valve is provided at the oil inlet (6).

3. The wind turbine gearbox integrated oil filter device according to claim 2, characterized in that: The filter (12) comprises a barrel (1) provided with the filter chamber, a first cover body sealedly connected to the lower end of the barrel (1), and a second cover body (2) sealedly connected to the upper end of the barrel (1), a bushing fixedly connected inside the barrel (1), and a filter element and the one-way valve fixedly connected to the bushing.

4. The wind turbine gearbox integrated thin oil filter device according to claim 3, characterized in that: The cylinder (1) is an aluminum alloy cylinder, the first cover body and the second cover body (2) are both aluminum alloy covers, and the temperature control valve block (9) is an aluminum alloy valve block.

5. The wind turbine gearbox integrated oil filter device according to claim 3, characterized in that: The exhaust port (3) is arranged on the second cover body (2), the temperature control valve block (9) is provided with an interface for communicating with the first outlet of the first temperature control three-way regulating valve (10) or the second temperature control three-way regulating valve (11), and a hose (4) is arranged between the exhaust port (3) and the interface.

6. The wind turbine gearbox integrated thin oil filter device according to claim 1, characterized in that: The first temperature-controlled three-way regulating valve (10) comprises a first three-way regulating valve and a first temperature-sensing package for sensing the temperature of lubricating oil in the first three-way regulating valve, wherein the first temperature-sensing package acts on a valve core in the first three-way regulating valve. The second temperature-controlled three-way regulating valve (11) comprises a second three-way regulating valve and a second temperature-sensing package for sensing the temperature of lubricating oil in the second three-way regulating valve, wherein the second temperature-sensing package acts on a valve core in the second three-way regulating valve.

7. The wind turbine gearbox integrated thin oil filter device according to claim 1, characterized in that: The temperature control valve block (9) is provided with a differential pressure transmitter (7), and two detection ends of the differential pressure transmitter (7) are respectively connected to the inlet and the outlet of the filter chamber.

8. The wind turbine gearbox integrated thin oil filter device according to claim 1, characterized in that: The temperature control valve block (9) is provided with two first connectors for installing a pressure gauge (5), and the inner sides of the two first connectors are respectively connected to the inlet and the outlet of the filter chamber.

9. The wind turbine gearbox integrated thin oil filter device according to claim 1, characterized in that: The temperature control valve block (9) is provided with two second connectors for installing a particle counter, and the inner sides of the two second connectors are respectively connected to the inlet and the outlet of the filter chamber.

10. The wind turbine gearbox integrated thin oil filter device according to claim 1, characterized in that: A sewage discharge ball valve (8) communicating with the upper inlet of the filter chamber is provided at the lower part of the filter (12).

Images