Monitoring device for temperature control valve of gearbox of wind driven generator

Abstract

The utility model relates to the technical field of wind power generation, in particular to a wind driven generator gearbox temperature control valve monitoring device which comprises a filter and a base, the bottom of the filter is fixedly connected with the base, and a temperature control valve is installed in the base. The front side of the base is fixedly connected with a monitoring device; the monitoring device comprises a fixing frame and a motor, a sealing plate is slidably connected to the interior of the fixing frame, guide sliding grooves are formed in the two sides of the face, facing the base, of the sealing plate, and the sealing plate is slidably connected with the guide plate through the guide sliding grooves; the motor is started to drive the threaded shaft to rotate, the threaded shaft drives the threaded sleeve to move, the threaded sleeve drives the sealing plate on the upper portion to slide out of the interior of the fixing frame, the sealing plate is tightly attached to the front side of the base, once the oil leakage phenomenon occurs, oil flows into the oil storage tank on the lower portion through the flow guide sliding groove, and the oil sensor monitors that oil exists; the alarm gives an alarm, which is helpful for workers to maintain in time.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a monitoring device for a temperature control valve of a wind power generator gear box. Background Art

[0002] The gearbox in a wind turbine is an important mechanical component. Its main function is to transfer the power generated by the wind rotor to the generator and make it get the corresponding speed. Usually, the speed of the wind rotor is very low, far from the speed required by the generator. It must be achieved through the speed increase of the gear pair of the gearbox, so the gearbox is also called a speed increaser. According to the overall layout requirements of the unit, the transmission shaft (commonly known as the main shaft) directly connected to the hub of the wind rotor is sometimes integrated with the gearbox. There is also a structure in which the main shaft and the gearbox are arranged separately, and the expansion sleeve device or coupling is used to connect them. In order to increase the braking capacity of the unit, a brake device is often set at the input or output end of the gearbox, and the blade tip brake (fixed pitch wind rotor) or variable pitch brake device is used to jointly brake the unit transmission system.

[0003] However, in the actual use of wind turbine gearbox, the temperature control valve often fails or is damaged by aging, which leads to oil seepage and leakage. Over time, it is very easy to reduce the oil and affect the normal use of the gearbox. At the same time, the temperature control valve is fixed by a retaining spring. Once the fixation is unstable, oil leakage is very likely to occur. Therefore, a wind turbine gearbox temperature control valve monitoring device is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a wind turbine gearbox temperature control valve monitoring device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] As an optional solution of the wind turbine gearbox temperature control valve monitoring device described in the utility model, wherein: a wind turbine gearbox temperature control valve monitoring device comprises a filter and a base, the bottom of the filter is fixedly connected to the base, a temperature control valve is installed inside the base, and vertically arranged guide plates fixedly connected to the base are provided on both sides of the temperature control valve;

[0007] A monitoring device is fixedly connected to the front side of the base;

[0008] The monitoring device comprises a fixed frame and a motor, the outer side of the fixed frame is fixedly connected to the base, the interior of the fixed frame is slidably connected to a sealing plate, both sides of the sealing plate facing the base are provided with guide grooves, and the sealing plate is slidably connected to the guide plate through the guide grooves;

[0009] An alarm is also installed on the front side of the fixing frame, an oil storage tank is also opened at the bottom of the fixing frame, and an oil sensor is installed on the inner wall of the oil storage tank.

[0010] As an optional solution of a wind turbine gearbox temperature control valve monitoring device described in the utility model, wherein: the inner sides of the fixed frame are also fixedly connected to motors, the end of the main shaft of the motor is fixedly connected to a threaded shaft, the outer side of the threaded shaft is spirally connected to a threaded sleeve, and the top of the threaded sleeve is fixedly connected to the sealing plate.

[0011] In the actual use of the fan gearbox, the temperature control valve often fails or is damaged by aging, and then oil seepage and leakage occur. Over a long period of time, it is very easy to cause a reduction in oil and thus affect the normal use of the gearbox. At the same time, the temperature control valve is fixed by a retaining spring. Once the fixation is unstable, oil leakage is also very likely to occur. When the device is used, an external power supply is used. When the utility model is used, the threaded shaft is driven to rotate by the starting motor, and the threaded shaft drives the threaded sleeve to move, and the threaded sleeve drives the upper sealing plate to slide out from the inside of the fixed frame, and the sealing plate is tightly fitted to the front side of the base. Once oil leakage occurs, the oil can flow to the inside of the oil storage tank below through the guide chute, and the oil sensor detects the presence of oil. At this time, an alarm is sounded through the alarm, which helps the staff to carry out timely maintenance. During the movement of the sealing plate, the guide plate and the guide chute are coordinated, which can ensure the stable movement of the sealing plate. At the same time, the guide chute is not opened to the top of the sealing plate, which can prevent the dust above from falling through the guide chute.

[0012] As an optional solution of the wind turbine gearbox temperature control valve monitoring device described in the utility model, an oil drain hole is opened at the bottom of the oil storage tank, and an oil drain valve fixedly connected to the fixed frame is provided on the other side of the oil drain hole.

[0013] When the internal oil of the oil storage tank is discharged, the oil release valve is opened, and the oil is discharged through the oil drain hole on one side of the oil storage tank to ensure the subsequent normal use of the monitoring device.

[0014] As an optional solution of the wind turbine gearbox temperature control valve monitoring device described in the utility model, wherein: the interior of the fixed frame is also fixedly connected with blocking blocks arranged in a left-right symmetrical manner, and the blocking blocks are arranged on both sides of the oil storage tank.

[0015] This arrangement ensures that the oil falls through the guide chute, and the setting of the blocking block can ensure that the oil falls normally into the oil storage tank.

[0016] As an optional solution of a wind turbine gearbox temperature control valve monitoring device described in the utility model, the portion of the sealing plate facing the temperature control valve is provided with vertically arranged and evenly distributed guide grooves, and the length of the guide grooves is 0.6 times the height of the sealing plate.

[0017] The guide groove passes through to the bottom of the sealing plate, which can ensure that the oil leaked from the temperature control valve falls normally. At the same time, since the guide groove is not opened to the top of the sealing plate, the sealing can be guaranteed to prevent external dust from entering the fixed frame.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] When the utility model is in use, the threaded shaft is driven to rotate by starting the motor, and the threaded shaft drives the threaded sleeve to move, and the threaded sleeve drives the upper sealing plate to slide out from the inside of the fixed frame, and the sealing plate is tightly fitted to the front side of the base. Once oil leakage occurs, the oil can flow to the inside of the oil storage tank below through the guide chute, and the oil sensor detects the presence of oil. At this time, an alarm is sounded through the alarm, which helps the staff to carry out timely maintenance;

[0020] During the movement of the sealing plate, the guide plate and the guide chute cooperate to ensure the stable movement of the sealing plate. At the same time, the guide chute is not opened to the top of the sealing plate, so that dust from above can be prevented from falling through the guide chute.

[0021] After completing the maintenance work, the staff can release the oil inside the oil storage tank by opening the oil drain valve, which will be used continuously for subsequent monitoring work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a cross-sectional view of the fixing frame of the utility model;

[0024] Figure 3 This is a structural schematic diagram of the sealing plate of the utility model;

[0025] Figure 4 For this utility model Figure 2 Schematic diagram of the structure at point A.

[0026] In the figure: 1. filter; 2. base; 3. monitoring device; 301. fixing frame; 302. motor; 303. threaded shaft; 304. threaded sleeve; 305. sealing plate; 306. blocking block; 307. oil sensor; 308. oil drain valve; 309. guide chute; 310. guide chute; 4. temperature control valve; 5. guide plate; 6. alarm. DETAILED DESCRIPTION

[0027] 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.

[0028] Example 1

[0029] See also Figure 1 , Figure 2 Figure 3 and Figure 4 , the utility model provides a technical solution:

[0030] A wind turbine gearbox temperature control valve monitoring device comprises a filter 1 and a base 2, wherein the base 2 is fixedly connected to the bottom of the filter 1, a temperature control valve 4 is installed inside the base 2, and guide plates 5 vertically arranged and fixedly connected to the base 2 are provided on both sides of the temperature control valve 4;

[0031] A monitoring device 3 is fixedly connected to the front side of the base 2;

[0032] The monitoring device 3 includes a fixed frame 301 and a motor 302. The outer side of the fixed frame 301 is fixedly connected to the base 2. The interior of the fixed frame 301 is slidably connected with a sealing plate 305. Both sides of the sealing plate 305 facing the base 2 are provided with guide grooves 309. The sealing plate 305 is slidably connected to the guide plate 5 through the guide grooves 309.

[0033] An alarm 6 is also installed on the front side of the fixing frame 301 , an oil storage tank is also provided at the bottom of the fixing frame 301 , and an oil sensor 307 is installed on the inner wall of the oil storage tank.

[0034] The motor 302 is also fixedly connected to both sides of the interior of the fixed frame 301 . The end of the main shaft of the motor 302 is fixedly connected to a threaded shaft 303 . The outer side of the threaded shaft 303 is spirally connected to a threaded sleeve 304 . The top of the threaded sleeve 304 is fixedly connected to a sealing plate 305 .

[0035] In the actual use of the fan gear box, the temperature control valve often fails or is damaged by aging, and then oil seepage and leakage occur. Over a long period of time, it is very easy to cause the oil to decrease and thus affect the normal use of the gear box. At the same time, the temperature control valve is fixed by a retaining spring. Once the fixation is unstable, oil leakage is also very likely to occur. When the device is used, an external power supply is connected. When the utility model is used, the threaded shaft 303 is driven to rotate by starting the motor 302, and the threaded shaft 303 drives the threaded sleeve 304 to move, and the threaded sleeve 304 drives the upper sealing plate 305 to slide from the inside of the fixed frame. The sealing plate 305 is tightly fitted to the front side of the base 2. Once oil leakage occurs, the oil can flow to the oil storage tank below through the guide groove 310, and the oil sensor 307 detects the presence of oil. At this time, an alarm is sounded through the alarm 6, which helps the staff to carry out timely maintenance. During the movement of the sealing plate 305, the guide plate 5 and the guide groove 309 provided therein cooperate, and the sealing plate 305 can be guaranteed to move stably. At the same time, the guide groove 310 is not opened to the top of the sealing plate 305, and the dust above can be prevented from falling through the guide groove.

[0036] Example 2

[0037] This embodiment is an improvement on embodiment 1. Figure 2 Specifically, an oil drain hole is provided at the bottom of the oil storage tank, and an oil drain valve 308 fixedly connected to the fixing frame 301 is provided on the other side of the oil drain hole.

[0038] When the internal oil of the oil storage tank is discharged, the oil release valve 308 is opened, and the oil is discharged through the oil drain hole on one side of the oil storage tank to ensure the subsequent normal use of the monitoring device.

[0039] Example 3

[0040] This embodiment is an improvement on embodiment 2. Figure 2 Specifically, the interior of the fixed frame 301 is also fixedly connected with blocking blocks 306 that are symmetrically arranged on both sides of the oil storage tank.

[0041] This arrangement ensures that the oil falls through the guide chute, and the setting of the blocking block 306 can ensure that the oil falls normally into the oil storage tank.

[0042] Example 4

[0043] This embodiment is an improvement on embodiment 3. Figure 3 Specifically, a portion of the sealing plate 305 facing the temperature control valve 4 is provided with a vertically arranged and evenly distributed guide groove 310 , and the length of the guide groove 310 is 0.6 times the height of the sealing plate 305 .

[0044] The guide groove 310 extends through the bottom of the sealing plate 305, which can ensure that the oil leaked from the temperature control valve 4 falls normally. At the same time, since the guide groove 310 is not opened to the top of the sealing plate 305, the sealing performance can be guaranteed to prevent external dust from entering the fixed frame 301.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine gearbox temperature control valve monitoring device, characterized in that: The invention comprises a filter (1) and a base (2), wherein the bottom of the filter (1) is fixedly connected to the base (2), a temperature control valve (4) is installed inside the base (2), and guide plates (5) are vertically arranged on both sides of the temperature control valve (4) and are fixedly connected to the base (2); A monitoring device (3) is fixedly connected to the front side of the base (2); The monitoring device (3) comprises a fixed frame (301) and a motor (302); the outer side of the fixed frame (301) is fixedly connected to the base (2); the interior of the fixed frame (301) is slidably connected to a sealing plate (305); guide grooves (309) are provided on both sides of a side of the sealing plate (305) facing the base (2); the sealing plate (305) is slidably connected to the guide plate (5) via the guide grooves (309); An alarm (6) is also installed on the front side of the fixing frame (301), an oil storage tank is also opened at the bottom of the fixing frame (301), and an oil sensor (307) is installed on the inner wall of the oil storage tank.

2. A wind turbine gearbox temperature control valve monitoring device according to claim 1, characterized in that: An oil drain hole is provided at the bottom of the oil storage tank, and an oil drain valve (308) fixedly connected to the fixing frame (301) is provided on the other side of the oil drain hole.

3. A wind turbine gearbox temperature control valve monitoring device according to claim 1, characterized in that: The fixed frame (301) is also fixedly connected to both sides of its interior with a motor (302), the main shaft end of the motor (302) is fixedly connected to a threaded shaft (303), the outer side of the threaded shaft (303) is spirally connected to a threaded sleeve (304), and the top of the threaded sleeve (304) is fixedly connected to a sealing plate (305).

4. A wind turbine gearbox temperature control valve monitoring device according to claim 1, characterized in that: The interior of the fixed frame (301) is also fixedly connected with blocking blocks (306) which are arranged symmetrically on the left and right. The blocking blocks (306) are arranged on both sides of the oil storage tank.

5. A wind turbine gearbox temperature control valve monitoring device according to claim 1, characterized in that: A portion of the sealing plate (305) facing the temperature control valve (4) is provided with vertically arranged and evenly distributed guide grooves (310), and the length of the guide grooves (310) is 0.6 times the height of the sealing plate (305).

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