Wind turbine generator gearbox pollution monitoring device

Abstract

The utility model relates to the technical field of gearbox pollution monitoring, and provides a wind turbine generator gearbox pollution monitoring device which comprises a shell, a sealing piece used for sealing the shell is arranged on the outer side of the shell, and an oil way connecting pipe communicated with a gearbox oil way is fixedly connected to the inner side of the shell. A plurality of monitoring assemblies with different functions are arranged on the oil way connecting pipe, each monitoring assembly comprises an oil pumping part, the inlet end of each oil pumping part is communicated with the oil way connecting pipe, the outlet end of each oil pumping part is fixedly connected with a detection pipe, the detection pipe is fixedly connected with a detection sensor used for detecting oil liquid, and the outlet end of each detection pipe is communicated with the oil way connecting pipe. According to the utility model, the plurality of detection pipes are connected to the oil path connecting pipe in a shunting manner, oil is detected through the detection sensors with different functions on different detection pipes, and the pipeline of each detection pipe does not influence the pipeline detection of other detection pipes, so that the stability of the whole monitoring device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear box pollution monitoring, in particular to a wind turbine gear box pollution monitoring device. Background Art

[0002] Wind turbines are composed of wind rotors, low-speed shafts, gearboxes, high-speed shafts, generators, towers and other components. Gearboxes, as intermediate devices for speed conversion of wind turbines, are crucial to the normal operation of the entire unit. Gearbox failures often cause the entire wind turbine to shut down, directly affecting the performance and safety of the wind turbine. Among them, contamination of the lubricating oil inside the gearbox is the main cause of mechanical failure of the gearbox, which requires monitoring of the lubricating oil inside the gearbox.

[0003] After searching, the Chinese patent publication number CN219608696U discloses "a mining equipment gearbox oil detection platform, comprising: a detachable shell and a protective door, a support plate is arranged in the shell, a measuring sensor group is fixedly arranged on the support plate, a detection oil pipe is arranged through the measuring sensor group to transfer oil to the measuring sensor group, the detection oil pipe can be externally connected to the measured oil circuit, a plurality of power switches are arranged in the shell, a plurality of the power switches are electrically connected to a data processing module, and the data processing module is electrically connected to the measuring sensor group",

[0004] The above patent directly connects the detection tube to the main oil circuit of the oil circuit interface and uses detection sensors with different functions to detect the oil on the main oil circuit. However, once the oil is contaminated and particulate impurities are mixed in the oil, the pipeline may be blocked due to the small diameter of the pipeline where the detection sensor is located, which causes the entire main oil circuit to be blocked, thereby affecting subsequent detection work. Utility Model Content

[0005] The utility model provides a wind turbine gearbox pollution monitoring device, which solves the problem that the oil circuit is easily blocked in the prior art.

[0006] The technical solution of the utility model is as follows: a wind turbine gearbox pollution monitoring device, comprising a shell, the outer side of the shell is provided with a seal for sealing the shell, the inner side of the shell is fixedly connected with an oil circuit pipe connected to the gearbox oil circuit, the oil circuit pipe is provided with a plurality of monitoring components with different functions, the monitoring component comprises an oil pumping part, the inlet end of the oil pumping part is connected to the oil circuit pipe, the outlet end of the oil pumping part is fixedly connected with a detection tube, the detection tube is fixedly connected with a detection sensor for detecting oil, and the outlet end of the detection tube is connected to the oil circuit pipe.

[0007] Preferably, the oil pipe is a disc-shaped structure, and a plurality of monitoring components are equidistantly distributed on the oil pipe.

[0008] Preferably, the number of the monitoring components is three, and the three monitoring components respectively detect the oil contamination abrasive concentration, oil viscosity and oil water content.

[0009] Preferably, the oil pumping part includes an oil pumping cylinder, which is fixedly connected to the inner side of the shell, the top of the oil pumping cylinder is slidably connected to a sliding rod that penetrates the top wall of the oil pumping cylinder, the bottom end of the sliding rod is fixedly connected to a piston, the inlet end of the oil pumping cylinder is fixedly connected to an oil inlet pipe, the oil inlet pipe is fixedly connected to a one-way valve 1, the inlet end of the oil inlet pipe is connected to an oil pipe connection, the outlet end of the oil pumping cylinder is fixedly connected to an oil outlet pipe, the oil outlet pipe is fixedly connected to a one-way valve 2, and the outlet end of the oil outlet pipe is connected to a detection pipe.

[0010] Preferably, the diameter of the piston is the same as the inner diameter of the pumping cylinder, and the outer wall of the piston is slidably connected to the inner wall of the pumping cylinder.

[0011] Preferably, the oil flow direction inside the one-way valve 1 is from the oil pipe connection to the oil pump, and the oil flow direction inside the one-way valve 2 is from the oil pump to the detection tube.

[0012] Preferably, the oil pumping member also includes a top block fixedly connected to the top of the sliding rod, the sliding rod is provided with a spring, the top end of the spring is in contact with the top block, the bottom end of the spring is in contact with the top wall of the pumping cylinder, and a driving component for intermittently driving the top block to move downward is provided on the inner side of the shell.

[0013] Preferably, the top surface of the top block is a curved surface structure, and the diameter of the bottom surface of the top block is larger than the diameter of the spring.

[0014] Preferably, the driving assembly includes a rotating shaft rotatably connected to the inside of the shell, a motor is fixedly installed on the outside of the shell, the output shaft of the motor is fixedly connected to the rotating shaft, and a plurality of cams corresponding to the top blocks are fixedly connected to the rotating shaft, and the cams can cooperate with the rotation of the rotating shaft to intermittently interfere with the top block.

[0015] Preferably, the sealing member comprises a sealing plate which is slidably matched with the shell, both ends of the sealing plate are fixedly connected with mounting plates, mounting bolts are threadedly connected on the mounting plate, and the mounting plate is fixedly connected to the shell through corresponding mounting bolts.

[0016] The technical effects and advantages of the utility model are as follows: by connecting multiple detection tubes to the oil circuit connecting pipe through diversion, and then detecting the oil through detection sensors with different functions on different detection tubes, when the pipeline of one of the detection tubes is blocked, this will not affect the normal circulation of the oil inside the oil circuit connecting pipe, so it will not affect the pipeline detection of other detection tubes, which greatly improves the stability of the overall monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a wind turbine gearbox pollution monitoring device.

[0018] Figure 2 It is a schematic diagram of the internal structure of the shell of the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the monitoring component of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the oil pumping member of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the drive assembly of the utility model.

[0022] Figure 6 It is a structural schematic diagram of the sealing member of the utility model.

[0023] The accompanying drawings are marked as follows: 1. housing; 2. sealing member; 21. sealing plate; 22. mounting plate; 23. mounting bolts; 3. oil pipe connection; 4. monitoring assembly; 41. oil pumping member; 411. oil pumping cylinder; 412. sliding rod; 413. piston; 414. oil inlet pipe; 415. one-way valve 1; 416. oil outlet pipe; 417. one-way valve 2; 418. top block; 419. spring; 42. detection tube; 43. detection sensor; 5. driving assembly; 51. rotating shaft; 52. motor; 53. cam. DETAILED DESCRIPTION

[0024] The following will be combined with 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 of 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.

[0025] Reference Figure 1 - Figure 3The utility model provides a wind turbine gearbox pollution monitoring device, including a shell 1, a sealing member 2 for sealing the shell 1 is arranged on the outer side of the shell 1, an oil pipe 3 connected to the gearbox oil circuit is fixedly connected to the inner side of the shell 1, and a plurality of monitoring components 4 with different functions are arranged on the oil pipe 3. The monitoring component 4 includes an oil pumping member 41, the inlet end of the oil pumping member 41 is connected to the oil pipe 3, the outlet end of the oil pumping member 41 is fixedly connected to a detection tube 42, a detection sensor 43 for detecting oil is fixedly connected to the detection tube 42, and the outlet end of the detection tube 42 is connected to the oil pipe 3.

[0026] By connecting multiple detection tubes 42 to the oil circuit connecting pipe 3, and then detecting the oil through detection sensors 43 with different functions on different detection tubes 42, when the pipeline of one of the detection tubes 42 is blocked, this will not affect the normal circulation of the oil inside the oil circuit connecting pipe 3, so it will not affect the pipeline detection of other detection tubes 42, thereby greatly improving the stability of the overall monitoring device.

[0027] Reference Figure 3 The oil pipe 3 is a disc-shaped structure, and multiple monitoring components 4 are evenly distributed on the oil pipe 3. The number of monitoring components 4 is three, and the three monitoring components 4 respectively detect the oil contamination, abrasive concentration, oil viscosity and oil water content. The oil pipe 3 with a disc-shaped structure can extend the flow path of the oil to slow down the flow speed of the oil, which allows the oil pump 41 to extract more oil for detection, thereby improving the accuracy of the detection.

[0028] Reference Figure 4-Figure 5The pumping member 41 includes a pumping cylinder 411, which is fixedly connected to the inner side of the housing 1. The top of the pumping cylinder 411 is slidably connected to a slide rod 412 that penetrates the top wall of the pumping cylinder 411. The bottom end of the slide rod 412 is fixedly connected to a piston 413. The inlet end of the pumping cylinder 411 is fixedly connected to an oil inlet pipe 414, and a one-way valve 415 is fixedly connected to the oil inlet pipe 414. The inlet end of the oil inlet pipe 414 is connected to the oil pipe 3. The outlet end of the pumping cylinder 411 is fixedly connected with an oil outlet pipe 416, and the oil outlet pipe 416 is fixedly connected with a check valve 417. The outlet end of the oil outlet pipe 416 is connected with the detection tube 42. The diameter of the piston 413 is the same as the inner diameter of the pumping cylinder 411. The outer wall of the piston 413 is slidably connected with the inner wall of the pumping cylinder 411. The oil flow direction inside the check valve 415 is from the oil pipe 3 to the pumping cylinder 411. The oil flow direction of the inside of valve 2 417 is from the pumping cylinder 411 into the detection tube 42. The top of the sliding rod 412 is fixedly connected with a top block 418, and a spring 419 is sleeved on the sliding rod 412. The top of the spring 419 contacts the top block 418, and the bottom of the spring 419 contacts the top wall of the pumping cylinder 411. The top surface of the top block 418 is an arc structure, and the diameter of the bottom surface of the top block 418 is larger than the diameter of the spring 419. A driving assembly 5 for intermittently driving the top block 418 to move downward is provided on the inner side of the shell 1. The driving assembly 5 includes a rotating shaft 51 rotatably connected to the inside of the shell 1, and a motor 52 is fixedly installed on the outer side of the shell 1. The output shaft of the motor 52 is fixedly connected to the rotating shaft 51, and a plurality of cams 53 corresponding to the top blocks 418 are fixedly connected to the rotating shaft 51. The cams 53 can cooperate with the rotation of the rotating shaft 51 to intermittently contact the top block 418.

[0029] When working, the motor 52 is started to rotate the shaft 51, so that all the cams 53 rotate synchronously. When the cam 53 contacts the corresponding top block 418, the top block 418 moves downward under pressure. At this time, the spring 419 is squeezed and accumulates potential energy. When the cam 53 is separated from the corresponding top block 418, the spring 419 releases the potential energy to make the top block 418 move upward. In this cycle, the top block 418 can reciprocate up and down, which makes the top block 418 drive the slide rod 412 to reciprocate up and down, and also makes the piston 413 slide back and forth up and down.

[0030] When the piston 413 slides upward, the internal pressure of the pumping cylinder 411 decreases, causing the oil inlet pipe 414 to suck the oil in the oil pipe 3 into the pumping cylinder 411. When the piston 413 slides downward, the internal pressure of the pumping cylinder 411 increases, causing the oil outlet pipe 416 to guide the oil in the pumping cylinder 411 into the detection tube 42 for detection. The entire process can intermittently guide the oil into the detection tube 42 for detection, greatly improving the monitoring effect of the oil.

[0031] Reference Figure 6The sealing member 2 includes a sealing plate 21 that is slidably matched with the housing 1. Both ends of the sealing plate 21 are fixedly connected with mounting plates 22. The mounting plates 22 are threadedly connected with mounting bolts 23. The mounting plates 22 are fixedly connected with the housing 1 through corresponding mounting bolts 23. The mounting plates 22 can be fixed on the housing 1 through the mounting bolts 23, so that the sealing plate 21 and the housing 1 are kept fixed and the housing 1 is sealed, so as to prevent external dust from entering and affecting the normal detection work of the monitoring component 4.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind turbine gearbox pollution monitoring device, comprising a housing (1), wherein a sealing member (2) for sealing the housing (1) is arranged on the outer side of the housing (1), characterized in that: An oil pipe (3) connected to the gearbox oil circuit is fixedly connected to the inner side of the housing (1); a plurality of monitoring components (4) with different functions are arranged on the oil pipe (3); the monitoring components (4) include an oil pumping member (41); an inlet end of the oil pumping member (41) is connected to the oil pipe (3); an outlet end of the oil pumping member (41) is fixedly connected to a detection tube (42); a detection sensor (43) for detecting oil is fixedly connected to the detection tube (42); and an outlet end of the detection tube (42) is connected to the oil pipe (3).

2. A wind turbine gearbox pollution monitoring device according to claim 1, characterized in that: The oil line pipe (3) is a disc-shaped structure, and a plurality of monitoring components (4) are evenly distributed on the oil line pipe (3).

3. A wind turbine gearbox pollution monitoring device according to claim 1, characterized in that: The number of the monitoring components (4) is three, and the three monitoring components (4) respectively detect the oil contamination degree, abrasive particle concentration, oil viscosity and oil water content.

4. A wind turbine gearbox pollution monitoring device according to claim 1, characterized in that: The oil pumping member (41) comprises an oil pumping cylinder (411), the oil pumping cylinder (411) is fixedly connected to the inner side of the shell (1), the top of the oil pumping cylinder (411) is slidably connected to a sliding rod (412) penetrating the top wall of the oil pumping cylinder (411), the bottom end of the sliding rod (412) is fixedly connected to a piston (413), the inlet end of the oil pumping cylinder (411) is fixedly connected to an oil inlet pipe (414), the oil inlet pipe (414) is fixedly connected to a one-way valve 1 (415), the inlet end of the oil inlet pipe (414) is connected to an oil pipe (3), the outlet end of the oil pumping cylinder (411) is fixedly connected to an oil outlet pipe (416), the oil outlet pipe (416) is fixedly connected to a one-way valve 2 (417), and the outlet end of the oil outlet pipe (416) is connected to a detection pipe (42).

5. A wind turbine gearbox pollution monitoring device according to claim 4, characterized in that: The diameter of the piston (413) is the same as the inner diameter of the pumping cylinder (411), and the outer wall of the piston (413) is slidably connected to the inner wall of the pumping cylinder (411).

6. A wind turbine gearbox pollution monitoring device according to claim 4, characterized in that: The oil flow direction inside the one-way valve (415) is from the oil pipe (3) to the oil pump (411), and the oil flow direction inside the two-way valve (417) is from the oil pump (411) to the detection tube (42).

7. A wind turbine gearbox pollution monitoring device according to claim 4, characterized in that: The oil pumping member (41) also includes a top block (418) fixedly connected to the top of the sliding rod (412), and a spring (419) is sleeved on the sliding rod (412). The top end of the spring (419) abuts against the top block (418), and the bottom end of the spring (419) abuts against the top wall of the pumping cylinder (411). The inner side of the shell (1) is provided with a driving component (5) for intermittently driving the top block (418) to move downward.

8. A wind turbine gearbox pollution monitoring device according to claim 7, characterized in that: The top surface of the top block (418) is a curved surface structure, and the diameter of the bottom surface of the top block (418) is larger than the diameter of the spring (419).

9. A wind turbine gearbox pollution monitoring device according to claim 7, characterized in that: The driving assembly (5) comprises a rotating shaft (51) rotatably connected to the inside of the housing (1); a motor (52) is fixedly mounted on the outside of the housing (1); an output shaft of the motor (52) is fixedly connected to the rotating shaft (51); a plurality of cams (53) corresponding to the top blocks (418) are fixedly connected to the rotating shaft (51); the cams (53) can cooperate with the rotation of the rotating shaft (51) to intermittently interfere with the top blocks (418).

10. A wind turbine gearbox pollution monitoring device according to claim 1, characterized in that: The sealing member (2) comprises a sealing plate (21) which is slidably matched with the housing (1); both ends of the sealing plate (21) are fixedly connected to mounting plates (22); mounting bolts (23) are threadedly connected to the mounting plates (22); and the mounting plates (22) are fixedly connected to the housing (1) via corresponding mounting bolts (23).

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