Wind power gear box no-load test device

Abstract

The invention discloses a wind power gear box no-load test device, and relates to the technical field of wind power gear boxes, the wind power gear box no-load test device comprises a fixed base and a wind power gear box, the top end of the fixed base is fixedly provided with a side support rib plate standing at the top end of the fixed base, and the top end of the side support rib plate is fixedly provided with a horizontally fixed top support plate; a water receiving nozzle is fixed to the top end of the top supporting plate, and a first movable water spraying nozzle spraying water downwards is arranged at the bottom end of the top supporting plate. A top supporting plate which is horizontally fixed is fixed to the top ends of side supporting rib plates, a water receiving nozzle is fixed to the top end of the top supporting plate, and a first movable water spraying nozzle which sprays water downwards is arranged at the bottom end of the top supporting plate; the water receiving nozzle is connected with an external water path, so that water source supply is provided for the first movable water spray nozzle and the second movable water spray nozzle, the first movable water spray nozzle and the second movable water spray nozzle can spray water downwards conveniently, and the operation state of the wind power gear box in rainy days is simulated.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power gear boxes, and in particular to a no-load test device for a wind power gear box. Background Art

[0002] Wind turbine gearboxes need to undergo rigorous testing and verification before leaving the factory. Usually, two gearboxes are connected back to back on a loading test bench for verification. The gearboxes are all installed in a horizontal position, and the loading test is more focused on verifying the vibration, noise, thermal balance, efficiency and other aspects of the gearbox. However, since the gearbox is installed in a horizontal position, it is different from the tilted angle installation in the wind turbine. As a result, the total oil volume, oil leakage, liquid level fluctuations, liquid level gauge alarms and other aspects of the gearbox cannot be fully verified. One existing method is to make a special mounting bracket for the gearbox with a tilt angle, but the tilt angle of the mounting bracket is a fixed value between different models of gearboxes. On the one hand, it is closely related to the manufacturing accuracy of the bracket. On the other hand, the angle cannot be adjusted, which has great limitations in actual use. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a wind turbine gearbox no-load test device to solve the technical problem that an existing method is to make a special mounting bracket for the gearbox with an inclination angle, but the inclination angle of the mounting bracket is a fixed value between different models of gearboxes. On the one hand, it is closely related to the manufacturing accuracy of the bracket, and on the other hand, the angle cannot be adjusted, which has great limitations in actual use.

[0004] To achieve the above object, the present invention is implemented through the following technical solutions: A wind turbine gearbox no-load test device comprises a fixed base and a wind turbine gearbox, wherein the top of the fixed base is fixed with a side support rib plate upright on the top of the fixed base, the top of the side support rib plate is fixed with a horizontally fixed top support plate, the top of the top support plate is fixed with a water receiving nozzle, and the bottom of the top support plate is provided with a first movable water spray nozzle for spraying water downward; The bottom end of the fixed base is provided with a supporting leg, the top end of the fixed base is provided with a reciprocating swinging base, the wind turbine gearbox is installed on the top end of the swinging base, an input shaft extends from the surface of the wind turbine gearbox, a second gear is fixedly installed on the surface of the input shaft, a servo motor 2 is fixedly installed on the surface of the swinging base, an output shaft extends forward from the servo motor 2, a first gear is fixedly installed on the surface of the output shaft of the servo motor 2, and the first gear is meshed with the second gear.

[0005] As a preferred technical solution of the present invention, hinge shafts are fixed on the left and right sides of the surface of the swing base, and two side brackets are fixed on the top of the fixed base. The hinge shafts on each side are rotatably connected to the side brackets.

[0006] As a preferred technical solution of the present invention, a gearbox base is fixed to the bottom end of the wind turbine gearbox, a hexagonal screw is installed on the surface of the gearbox base, and the gearbox base is locked and fixed to the top end of the swing base by the hexagonal screw.

[0007] As a preferred technical solution of the present invention, the bottom end of the fixed base is rotatably connected to a third cylinder, the third cylinder has a piston rod extending upward, and the top end of the piston rod of the third cylinder is rotatably connected to the bottom end of the swing base.

[0008] As a preferred technical solution of the present invention, a side wind turbine box is fixedly installed on the top of the fixed base, and a high-speed camera is fixedly installed on the middle of the surface of the side wind turbine box facing the wind turbine gearbox. The high-speed camera is coaxially fixed with the input shaft of the wind turbine gearbox, and a number of equally spaced fill lights are arranged around the high-speed camera.

[0009] As a preferred technical solution of the present invention, a plurality of ventilation fan holes are provided on the surface of the side wind turbine box facing the wind turbine gearbox, and fan blades are connected to the inside of the wind turbine box for rotation. A servo motor is fixedly installed on the surface of the wind turbine box, and the servo motor drives the fan blades inside the wind turbine box to rotate.

[0010] As a preferred technical solution of the present invention, a second movable water nozzle is provided at the bottom end of the top support plate. The second movable water nozzle is distributed parallel to the first movable water nozzle, and the second movable water nozzle and the first movable water nozzle can swing independently.

[0011] As a preferred technical solution of the present invention, a water cavity is fixedly provided inside the top support plate, and the top end of the first movable water nozzle is connected to the inside of the water cavity. The first movable water nozzle is a cylindrical rubber hose. A second cylinder is fixedly installed on the right side of the top support plate, a second sliding groove is opened inside the top support plate, a second sliding plate is slidably connected inside the second sliding groove, the first movable water nozzle is installed on the second sliding plate, the second sliding plate is opened with a plurality of through circular holes, and the first movable water nozzle extends downward through the circular holes on the surface of the second sliding plate.

[0012] Among them, a yield groove is provided at the top of the second sliding plate, an output shaft extends downward from the top of the second cylinder, a movable pin is provided at the top of the output shaft of the second cylinder, and the movable pin at the top of the second cylinder is slidably connected to the yield groove at the top of the second sliding plate.

[0013] As a preferred technical solution of the present invention, a first cylinder is fixedly installed on the left side of the top support plate, a first sliding groove is opened inside the top support plate, the first sliding groove and the second sliding groove are staggered, a water cavity is fixed inside the top support plate, the top end of the first movable water nozzle is connected to the inside of the water cavity, and the first movable water nozzle is a cylindrical rubber hose; The first sliding groove is slidably connected to a first sliding plate, the second movable water nozzle is installed on the first sliding plate, the first sliding plate is provided with a plurality of through circular holes, and the second movable water nozzle extends downward through the circular holes on the surface of the first sliding plate.

[0014] Among them, a give way groove is opened at the top of the first sliding plate, an output shaft extends downward from the top of the first cylinder, a movable pin is set at the top of the output shaft of the first cylinder, and the movable pin at the top of the first cylinder is slidably connected to the give way groove at the top of the first sliding plate.

[0015] As a preferred technical solution of the present invention, a sensor placement groove is provided on each of the left and right sides of the top of the swing base, and a rocker arm is rotatably connected inside each of the sensor placement grooves, wherein a temperature sensor is provided at the top of one of the rocker arms, and a noise sensor is provided at the top of the other rocker arm.

[0016] The support arm of the present invention is fixed with side support ribs upright on the top of the fixed base through the top of the fixed base, and a horizontally fixed top support plate is fixed to the top of the side support ribs, and a water receiving nozzle is fixed to the top of the top support plate, and a first movable water nozzle that sprays water downward is provided at the bottom of the top support plate; it is connected to the external water channel through the water receiving nozzle, thereby providing water supply for the first movable water nozzle and the second movable water nozzle, which facilitates the first movable water nozzle and the second movable water nozzle to spray water downward, simulating the operating state of the wind power gearbox in rainy weather.

[0017] The bottom end of the fixed base is provided with a supporting leg, and the top end of the fixed base is provided with a swinging base that swings back and forth. The wind turbine gearbox is installed on the top end of the swinging base. The swinging base swings back and forth on the top end of the fixed base, so that the wind turbine gearbox installed on the top end of the swinging base can swing back and forth on the top end of the fixed base, which can simulate the working condition of the wind turbine gearbox swinging back and forth under wind turbulence.

[0018] An input shaft extends from the surface of the wind turbine gearbox, a second gear is fixedly mounted on the surface of the input shaft, a servo motor 2 is fixedly mounted on the surface of the swing base, an output shaft extends forward from the servo motor 2, a first gear is fixedly mounted on the surface of the output shaft of the servo motor 2, and the first gear is meshed with the second gear, so that the wind turbine gearbox can be stably driven to rotate while swinging back and forth, thereby detecting the operating condition of the wind turbine gearbox in a no-load state.

[0019] A hinge shaft is fixed on each side of the left and right sides of the surface of the swing base, and two side brackets are fixed on the top of the fixed base. The hinge shaft on each side is rotatably connected to the side bracket, and the rotating connection of the hinge shaft can drive the swing base to swing back and forth.

[0020] The bottom end of the wind turbine gearbox is fixed with a gearbox base, the surface of the gearbox base is installed with hexagonal screws, and the gearbox base is locked and fixed to the top of the swing base by the hexagonal screws, thereby improving the connection firmness between the gearbox base and the swing base.

[0021] The bottom end of the fixed base is rotatably connected to the third cylinder, and the third cylinder has a piston rod extending upward. The top end of the piston rod of the third cylinder is rotatably connected to the bottom end of the swing base, thereby achieving the firm installation of the third cylinder.

[0022] A side wind turbine box is fixedly installed on the top of the fixed base, and a high-speed camera is fixedly installed on the middle of the surface of the side wind turbine box facing the wind turbine gearbox. The high-speed camera is coaxially fixed with the input shaft of the wind turbine gearbox, and a number of equally spaced fill lights are arranged around the high-speed camera. When the swing base swings to the coaxial position of the input shaft of the wind turbine gearbox and the high-speed camera, the input shaft of the wind turbine gearbox and the high-speed camera are coaxially fixed through the support of the third cylinder, so that the input shaft of the rotating wind turbine gearbox can be photographed at high speed, so as to grasp the jumping range of the input shaft during rotation, determine the rotation accuracy of the input shaft, and use the fill light for fill light, so as to improve the shooting clarity of the high-speed camera.

[0023] Several fan holes for ventilation are provided on the side surface of the wind turbine box facing the wind turbine gearbox. The fan blades are connected to the internal rotation of the wind turbine box. A servo motor is fixedly installed on the surface of the wind turbine box. The servo motor drives the fan blades inside the wind turbine box to rotate, which is convenient for simulating the influence of wind force on the wind turbine gearbox when the wind turbine gearbox is working at high altitude, so as to observe the working status of the wind turbine gearbox.

[0024] A second movable water nozzle is provided at the bottom end of the top support plate. The second movable water nozzle is distributed parallel to the first movable water nozzle. The second movable water nozzle and the first movable water nozzle can swing independently. The reciprocating swing between the second movable water nozzle and the first movable water nozzle simulates the influence on the working process of the wind turbine gearbox in a shower environment, a gust environment, a wind and rain environment, and a torrential rain environment, so as to judge whether the wind turbine gearbox produced by the inspection meets this working requirement and whether it meets the standard of meeting this working requirement.

[0025] A water cavity is fixedly provided inside the top support plate, and the top end of the first movable water nozzle is connected to the inside of the water cavity. The first movable water nozzle is a cylindrical rubber hose. A second cylinder is fixedly installed on the right side of the top support plate, a second sliding groove is opened inside the top support plate, a second sliding plate is slidably connected inside the second sliding groove, the first movable water nozzle is installed on the second sliding plate, and the second sliding plate is opened with several through circular holes. The first movable water nozzle extends downward through the circular holes on the surface of the second sliding plate.

[0026] Among them, a give way groove is opened at the top of the second sliding plate, an output shaft extends downward from the top of the second cylinder, a movable pin is set at the top of the output shaft of the second cylinder, and the movable pin at the top of the second cylinder is slidably connected to the give way groove at the top of the second sliding plate.

[0027] A first cylinder is fixedly installed on the left side of the top support plate. A first sliding groove is opened inside the top support plate. The first sliding groove and the second sliding groove are arranged alternately. A water cavity is fixed inside the top support plate. The top end of the first movable water nozzle is connected to the inside of the water cavity. The first movable water nozzle is a cylindrical rubber hose. The first sliding groove is slidably connected with a first sliding plate, the second movable water nozzle is installed on the first sliding plate, the first sliding plate is provided with a plurality of through circular holes, and the second movable water nozzle extends downward through the circular holes on the surface of the first sliding plate.

[0028] Among them, a give way groove is opened at the top of the first sliding plate, an output shaft extends downward from the top of the first cylinder, a movable pin is set at the top of the output shaft of the first cylinder, and the movable pin at the top of the first cylinder is slidably connected to the give way groove at the top of the first sliding plate.

[0029] It is convenient to independently drive the swing of the first movable water nozzle and the second movable water nozzle, so as to select cross reciprocating spraying or vertical falling of rainwater according to needs, simulating the state of rainwater falling on the surface of the wind turbine gearbox under different environments.

[0030] A sensor placement slot is provided on each of the left and right sides of the top of the swing base. A swing rod is rotatably connected to the inside of each sensor placement slot. A temperature sensor is provided on the top of one of the swing rods, and a noise sensor is provided on the top of the other swing rod. The noise sensor and the temperature sensor are respectively attached to the surface of the wind turbine gearbox, thereby detecting the surface temperature of the wind turbine gearbox and the noise inside the wind turbine gearbox.

[0031] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1This is a schematic diagram of the appearance and structure of the wind turbine gearbox no-load test device of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the appearance and structure of the wind turbine gearbox no-load test device of the present invention. Figure 2 ; Figure 3 This is a front view of the wind turbine gearbox no-load test device of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the appearance and structure of the wind turbine gearbox no-load test device of the present invention. Figure 3 ; Figure 5 This is a schematic diagram of the appearance and structure of the wind turbine gearbox no-load test device of the present invention. Figure 4 ; Figure 6 This is a front view of the wind turbine gearbox no-load test device of the present invention. Figure 2 ; Figure 7 This is a bottom view of the structure of the wind turbine gearbox no-load test device of the present invention; Figure 8 Schematic diagram of the front cross-sectional structure of the top support plate of the present invention; Figure 9 This invention is attached to the specification Figure 8 A partial enlarged view of middle A; Figure 10 This is a front view of the wind turbine gearbox no-load test device of the present invention. Figure 3 ; In the figure: fixed base 1, supporting leg 2, swing base 3, gear box base 4, hexagonal screw 5, sensor placement slot 6, temperature sensor 7, first movable water nozzle 8, first cylinder 9, top support plate 10, water nozzle 11, second cylinder 12, fan hole 13, servo motor 1 14, fill light 15, high-speed camera 16, side wind turbine chassis 17, servo motor 2 18, hinge shaft 19, side bracket 20, first gear 21, input shaft 22, second gear 23, wind turbine gear box 24, side support rib 25, rocker arm 26, water chamber 27, second movable water nozzle 28, first sliding plate 29, first sliding groove 30, second sliding plate 31, second sliding groove 32, give way groove 33, movable pin 34, third cylinder 35, fan blade 36. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] In the above description of the present invention, it should be noted that the terms "one side," "the other side," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0037] Furthermore, the term "identical" and similar terms do not necessarily require that the components be absolutely identical; slight variations are permitted. The term "perpendicular" simply refers to the positional relationship between components being more perpendicular than "parallel," not that the structure must be perfectly vertical; rather, it can be slightly tilted. Example

[0038] See also Figure 1-10 , a technical solution provided by the present invention: a wind turbine gearbox no-load test device, comprising a fixed base 1 and a wind turbine gearbox 24, a side support rib 25 vertically fixed to the top of the fixed base 1 is fixed to the top of the fixed base 1, a horizontally fixed top support plate 10 is fixed to the top of the side support rib 25, a water receiving nozzle 11 is fixed to the top of the top support plate 10, and a first movable water nozzle 8 for spraying water downward is provided at the bottom of the top support plate 10; A supporting leg 2 is provided at the bottom end of the fixed base 1, and a reciprocating swinging swinging base 3 is provided at the top of the fixed base 1. A wind turbine gear box 24 is installed at the top of the swinging base 3. An input shaft 22 extends from the surface of the wind turbine gear box 24, and a second gear 23 is fixedly installed on the surface of the input shaft 22. A servo motor 2 18 is fixedly installed on the surface of the swinging base 3, and an output shaft extends forward from the servo motor 2 18. A first gear 21 is fixedly installed on the surface of the output shaft of the servo motor 2 18, and the first gear 21 is meshed with the second gear 23.

[0039] Specifically, in this embodiment, the support arm of the present invention is fixed with a side support rib 25 upright on the top of the fixed base 1 through the top of the fixed base 1, and a horizontally fixed top support plate 10 is fixed to the top of the side support rib 25. A water receiving nozzle 11 is fixed to the top of the top support plate 10, and a first movable water nozzle 8 for spraying water downward is provided at the bottom end of the top support plate 10; it is connected to the external water channel through the water receiving nozzle 11, thereby providing water supply for the first movable water nozzle 8 and the second movable water nozzle 28, so as to facilitate the first movable water nozzle 8 and the second movable water nozzle 28 to spray water downward, simulating the operating state of the wind turbine gearbox 24 in rainy weather.

[0040] Specifically, in this embodiment, a supporting leg 2 is provided at the bottom end of the fixed base 1, a reciprocating swinging base 3 is provided at the top of the fixed base 1, and a wind turbine gearbox 24 is installed at the top of the swinging base 3. The swinging base 3 swings back and forth at the top of the fixed base 1, so that the wind turbine gearbox 24 installed at the top of the swinging base 3 can swing back and forth at the top of the fixed base 1, which can simulate the working condition of the wind turbine gearbox 24 swinging back and forth under wind turbulence.

[0041] A hinge shaft 19 is fixed on the left and right sides of the surface of the swing base 3 , and two side brackets 20 are fixed on the top of the fixed base 1 . The hinge shaft 19 on each side is rotatably connected to the side bracket 20 .

[0042] A gearbox base 4 is fixed to the bottom end of the wind power gearbox 24 . A hexagonal screw 5 is installed on the surface of the gearbox base 4 . The gearbox base 4 is locked and fixed to the top end of the swing base 3 by the hexagonal screw 5 .

[0043] The bottom end of the fixed base 1 is rotatably connected to a third cylinder 35 , and a piston rod extends upward from the third cylinder 35 . The top end of the piston rod of the third cylinder 35 is rotatably connected to the bottom end of the swing base 3 .

[0044] A side wind turbine box 17 is fixedly installed on the top of the fixed base 1, and a high-speed camera 16 is fixedly installed on the middle of the surface of the side wind turbine box 17 facing the wind turbine gear box 24. The high-speed camera 16 is coaxially fixed with the input shaft 22 of the wind turbine gear box 24, and a number of equally spaced fill lights 15 are arranged around the high-speed camera 16.

[0045] A plurality of ventilated fan holes 13 are provided on the surface of the side wind turbine box 17 facing the wind turbine gearbox 24. The fan blades 36 are connected to the inside of the wind turbine box 17 for rotation. A servo motor 14 is fixedly installed on the surface of the wind turbine box 17, and the servo motor 14 drives the fan blades 36 inside the wind turbine box 17 to rotate.

[0046] Specifically, in this embodiment, an input shaft 22 extends from the surface of the wind turbine gearbox 24, a second gear 23 is fixedly installed on the surface of the input shaft 22, a servo motor 2 18 is fixedly installed on the surface of the swing base 3, an output shaft extends forward from the servo motor 2 18, a first gear 21 is fixedly installed on the surface of the output shaft of the servo motor 2 18, and the first gear 21 is meshed with the second gear 23, so that the wind turbine gearbox 24 can be stably driven to rotate while swinging back and forth, thereby detecting the operating condition of the wind turbine gearbox 24 in a no-load state.

[0047] Specifically, in this embodiment, a hinge shaft 19 is fixed on the left and right sides of the surface of the swing base 3, and two side brackets 20 are fixed on the top of the fixed base 1. The hinge shaft 19 on each side is rotatably connected to the side bracket 20. The rotating connection of the hinge shaft 19 can drive the swing base 3 to swing back and forth.

[0048] Specifically, in this embodiment, a gear box base 4 is fixed to the bottom end of the wind turbine gear box 24, and a hexagonal screw 5 is installed on the surface of the gear box base 4. The gear box base 4 is locked and fixed to the top of the swing base 3 by the hexagonal screw 5, thereby improving the connection firmness between the gear box base 4 and the swing base 3.

[0049] Specifically, in this embodiment, the bottom end of the fixed base 1 is rotatably connected to the third cylinder 35, and the third cylinder 35 has a piston rod extending upward. The top end of the piston rod of the third cylinder 35 is rotatably connected to the bottom end of the swing base 3, thereby achieving the firm installation of the third cylinder 35.

[0050] Specifically, in this embodiment, a side wind turbine box 17 is fixedly installed on the top of the fixed base 1, and a high-speed camera 16 is fixedly installed on the middle of the surface of the side wind turbine box 17 facing the wind turbine gear box 24. The high-speed camera 16 is coaxially fixed with the input shaft 22 of the wind turbine gear box 24, and a number of equally spaced fill lights 15 are arranged around the high-speed camera 16. When the swing base 3 swings to the coaxial position of the input shaft 22 of the wind turbine gear box 24 and the high-speed camera 16, the input shaft 22 of the wind turbine gear box 24 is coaxially fixed with the high-speed camera 16 through the support of the third cylinder 35, so that the input shaft 22 of the rotating wind turbine gear box 24 can be photographed at high speed, so as to grasp the jumping range of the input shaft 22 during the rotation process, determine the rotation accuracy of the input shaft 22, and use the fill light 15 to fill in the light, thereby improving the shooting clarity of the high-speed camera 16.

[0051] Specifically, in this embodiment, a plurality of ventilated fan holes 13 are provided on the surface of the side wind turbine box 17 facing the wind turbine gear box 24, and the fan blades 36 are connected to the internal rotation of the wind turbine box. A servo motor 14 is fixedly installed on the surface of the wind turbine box, and the servo motor 14 drives the fan blades 36 inside the wind turbine box to rotate, so as to simulate the influence of wind force on the wind turbine gear box 24 when the wind turbine gear box 24 is working at high altitude, thereby observing the working status of the wind turbine gear box 24.

[0052] Example 2 See also Figure 1-10 , which is another technical solution provided by the present invention. This embodiment is similar to the above-mentioned embodiment 1, and the similarities are not elaborated in this embodiment. The specific differences are: A wind turbine gearbox no-load test device includes a fixed base 1 and a wind turbine gearbox 24. The top of the fixed base 1 is fixed with a side support rib 25 upright on the top of the fixed base 1. The top of the side support rib 25 is fixed with a horizontally fixed top support plate 10. The top of the top support plate 10 is fixed with a water receiving nozzle 11. The bottom of the top support plate 10 is provided with a first movable water nozzle 8 for spraying water downward. A supporting leg 2 is provided at the bottom end of the fixed base 1, and a reciprocating swinging swinging base 3 is provided at the top of the fixed base 1. A wind turbine gear box 24 is installed at the top of the swinging base 3. An input shaft 22 extends from the surface of the wind turbine gear box 24, and a second gear 23 is fixedly installed on the surface of the input shaft 22. A servo motor 2 18 is fixedly installed on the surface of the swinging base 3, and an output shaft extends forward from the servo motor 2 18. A first gear 21 is fixedly installed on the surface of the output shaft of the servo motor 2 18, and the first gear 21 is meshed with the second gear 23.

[0053] Specifically, in this embodiment, the support arm of the present invention is fixed with a side support rib 25 upright on the top of the fixed base 1 through the top of the fixed base 1, and a horizontally fixed top support plate 10 is fixed to the top of the side support rib 25. A water receiving nozzle 11 is fixed to the top of the top support plate 10, and a first movable water nozzle 8 for spraying water downward is provided at the bottom end of the top support plate 10; it is connected to the external water channel through the water receiving nozzle 11, thereby providing water supply for the first movable water nozzle 8 and the second movable water nozzle 28, so as to facilitate the first movable water nozzle 8 and the second movable water nozzle 28 to spray water downward, simulating the operating state of the wind turbine gearbox 24 in rainy weather.

[0054] A second movable water nozzle 28 is provided at the bottom end of the top support plate 10. The second movable water nozzle 28 is distributed parallel to the first movable water nozzle 8. The second movable water nozzle 28 and the first movable water nozzle 8 can swing independently.

[0055] A water cavity 27 is fixedly provided inside the top support plate 10, and the top end of the first movable water nozzle 8 is connected to the inside of the water cavity 27. The first movable water nozzle 8 is a cylindrical rubber hose. A second cylinder 12 is fixedly installed on the right side of the top support plate 10. A second sliding groove 32 is opened inside the top support plate 10. A second sliding plate 31 is slidingly connected inside the second sliding groove 32. The first movable water nozzle 8 is installed on the second sliding plate 31. The second sliding plate 31 is opened with several through circular holes. The first movable water nozzle 8 extends downward through the circular holes on the surface of the second sliding plate 31.

[0056] Among them, a clearance groove 33 is opened at the top of the second sliding plate 31, an output shaft extends downward from the top of the second cylinder 12, and a movable pin 34 is set at the top of the output shaft of the second cylinder 12. The movable pin 34 at the top of the second cylinder 12 is slidably connected to the clearance groove 33 at the top of the second sliding plate 31.

[0057] A first cylinder 9 is fixedly mounted on the left side of the top support plate 10. A first sliding groove 30 is provided inside the top support plate 10. The first sliding groove 30 and the second sliding groove 32 are arranged alternately. A water cavity 27 is fixed inside the top support plate 10. The top end of the first movable water nozzle 8 is connected to the interior of the water cavity 27. The first movable water nozzle 8 is a cylindrical rubber hose. The first sliding groove 30 is slidably connected to the first sliding plate 29, and the second movable water nozzle 28 is installed on the first sliding plate 29. The first sliding plate 29 is provided with a plurality of through circular holes, and the second movable water nozzle 28 extends downward through the circular holes on the surface of the first sliding plate 29.

[0058] Among them, a give way groove 33 is opened at the top of the first sliding plate 29, an output shaft extends downward from the top of the first cylinder 9, and a movable pin 34 is provided at the top of the output shaft of the first cylinder 9. The movable pin 34 at the top of the first cylinder 9 is slidably connected to the give way groove 33 at the top of the first sliding plate 29.

[0059] A sensor placement groove 6 is provided on each side of the top of the swing base 3. A rocker rod 26 is rotatably connected inside each sensor placement groove 6. A temperature sensor 7 is provided on the top of one rocker rod 26, and a noise sensor is provided on the top of the other rocker rod 26.

[0060] Specifically, in this embodiment, a second movable water nozzle 28 is provided at the bottom end of the top support plate 10. The second movable water nozzle 28 is distributed parallel to the first movable water nozzle 8. The second movable water nozzle 28 and the first movable water nozzle 8 can swing independently. The reciprocating swing between the second movable water nozzle 28 and the first movable water nozzle 8 simulates the impact on the working process of the wind turbine gearbox 24 in a shower environment, a gust environment, a wind and rain environment, and a torrential rain environment, so as to judge whether the wind turbine gearbox 24 produced by the inspection meets this working requirement and whether it meets the standard of meeting this working requirement.

[0061] Specifically, in this embodiment, a water cavity 27 is fixedly provided inside the top support plate 10, and the top end of the first movable water nozzle 8 is connected to the inside of the water cavity 27. The first movable water nozzle 8 is a cylindrical rubber hose. A second cylinder 12 is fixedly installed on the right side of the top support plate 10. A second sliding groove 32 is opened inside the top support plate 10. A second sliding plate 31 is slidingly connected inside the second sliding groove 32. The first movable water nozzle 8 is installed on the second sliding plate 31. The second sliding plate 31 is opened with several through circular holes. The first movable water nozzle 8 extends downward through the circular holes on the surface of the second sliding plate 31.

[0062] Among them, a clearance groove 33 is opened at the top of the second sliding plate 31, an output shaft extends downward from the top of the second cylinder 12, and a movable pin 34 is set at the top of the output shaft of the second cylinder 12. The movable pin 34 at the top of the second cylinder 12 is slidably connected to the clearance groove 33 at the top of the second sliding plate 31.

[0063] Specifically, in this embodiment, a first cylinder 9 is fixedly mounted on the left side of the top support plate 10. A first sliding groove 30 is provided inside the top support plate 10. The first sliding groove 30 and the second sliding groove 32 are arranged alternately. A water cavity 27 is fixed inside the top support plate 10. The top end of the first movable water nozzle 8 is connected to the interior of the water cavity 27. The first movable water nozzle 8 is a cylindrical rubber hose. The first sliding groove 30 is slidably connected to the first sliding plate 29, and the second movable water nozzle 28 is installed on the first sliding plate 29. The first sliding plate 29 is provided with a plurality of through circular holes, and the second movable water nozzle 28 extends downward through the circular holes on the surface of the first sliding plate 29.

[0064] Among them, a give way groove 33 is opened at the top of the first sliding plate 29, an output shaft extends downward from the top of the first cylinder 9, and a movable pin 34 is provided at the top of the output shaft of the first cylinder 9. The movable pin 34 at the top of the first cylinder 9 is slidably connected to the give way groove 33 at the top of the first sliding plate 29.

[0065] It is convenient to independently drive the swing of the first movable water nozzle 8 and the second movable water nozzle 28, so as to select cross reciprocating spraying or vertical falling of rainwater as needed, simulating the state of rainwater falling on the surface of the wind turbine gearbox 24 under different environments.

[0066] Specifically, in this embodiment, a sensor placement slot 6 is defined on each left and right side of the top of the swing base 3. Each sensor placement slot 6 is rotatably connected to a swing arm 26. A temperature sensor 7 is located at the top of one swing arm 26, while a noise sensor is located at the top of the other swing arm 26. The noise sensor and temperature sensor are attached to the surface of the wind turbine gearbox, respectively, to detect the surface temperature and internal noise of the wind turbine gearbox.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A wind turbine gearbox no-load test device, comprising a fixed base (1) and a wind turbine gearbox (24), characterized in that: A side support rib (25) vertically standing on the top of the fixed base (1) is fixed to the top of the fixed base (1); a horizontally fixed top support plate (10) is fixed to the top of the side support rib (25); a water receiving nozzle (11) is fixed to the top of the top support plate (10); and a first movable water spray nozzle (8) for spraying water downward is provided at the bottom of the top support plate (10); The bottom end of the fixed base (1) is provided with a support leg (2), the top end of the fixed base (1) is provided with a reciprocating swinging swinging base (3), the wind power gear box (24) is mounted on the top end of the swinging base (3), an input shaft (22) extends from the surface of the wind power gear box (24), a second gear (23) is fixedly mounted on the surface of the input shaft (22), a servo motor 2 (18) is fixedly mounted on the surface of the swinging base (3), an output shaft extends forward from the servo motor 2 (18), a first gear (21) is fixedly mounted on the surface of the output shaft of the servo motor 2 (18), and the first gear (21) is meshedly connected with the second gear (23).

2. A wind turbine gearbox no-load test device according to claim 1, characterized in that: A hinge shaft (19) is fixedly provided on the left and right sides of the surface of the swing base (3), and two side brackets (20) are fixed on the top of the fixed base (1). The hinge shaft (19) on each side is rotatably connected to the side bracket (20).

3. A wind turbine gearbox no-load test device according to claim 2, characterized in that: A gearbox base (4) is fixed to the bottom end of the wind power gearbox (24), a hexagonal screw (5) is installed on the surface of the gearbox base (4), and the gearbox base (4) is locked and fixed to the top end of the swing base (3) by the hexagonal screw (5).

4. The wind turbine gearbox no-load test device according to claim 3, characterized in that: The bottom end of the fixed base (1) is rotatably connected to a third cylinder (35), and the third cylinder (35) has a piston rod extending upward, and the top end of the piston rod of the third cylinder (35) is rotatably connected to the bottom end of the swing base (3).

5. The wind turbine gearbox no-load test device according to claim 1, characterized in that: A side wind turbine box (17) is fixedly mounted on the top of the fixed base (1), and a high-speed camera (16) is fixedly mounted on the middle of the surface of the side wind turbine box (17) facing the direction of the wind turbine gear box (24). The high-speed camera (16) is coaxially fixed with the input shaft (22) of the wind turbine gear box (24), and a plurality of equally spaced fill lights (15) are arranged around the high-speed camera (16).

6. The wind turbine gearbox no-load test device according to claim 5, characterized in that: The surface of the side wind turbine box (17) facing the wind turbine gear box (24) is provided with a plurality of ventilation fan holes (13), the interior of the wind turbine box (17) is connected to the fan blades (36) for rotation, and the surface of the wind turbine box (17) is fixedly mounted with a servo motor (14), and the servo motor (14) drives the fan blades (36) inside the wind turbine box (17) to rotate.

7. The wind turbine gearbox no-load test device according to claim 1, characterized in that: A second movable water spray nozzle (28) is provided at the bottom end of the top support plate (10), the second movable water spray nozzle (28) is distributed in parallel with the first movable water spray nozzle (8), and the second movable water spray nozzle (28) and the first movable water spray nozzle (8) can swing independently.

8. The wind turbine gearbox no-load test device according to claim 7, characterized in that: A water cavity (27) is fixedly provided inside the top support plate (10), and the top end of the first movable water nozzle (8) is connected to the inside of the water cavity (27). The first movable water nozzle (8) is a cylindrical rubber hose. A second cylinder (12) is fixedly mounted on the right side of the top support plate (10), a second sliding groove (32) is provided inside the top support plate (10), a second sliding plate (31) is slidably connected inside the second sliding groove (32), and the first movable water nozzle (8) is mounted on the second sliding plate (31).

9. The wind turbine gearbox no-load test device according to claim 8, characterized in that: A first cylinder (9) is fixedly mounted on the left side of the top support plate (10), a first sliding groove (30) is provided inside the top support plate (10), the first sliding groove (30) and the second sliding groove (32) are arranged in an alternating manner, a water cavity (27) is fixedly provided inside the top support plate (10), the top end of the first movable water nozzle (8) is connected to the inside of the water cavity (27), and the first movable water nozzle (8) is a cylindrical rubber hose; A first sliding plate (29) is slidably connected inside the first sliding groove (30), and the second movable water spray nozzle (28) is mounted on the first sliding plate (29).

10. The wind turbine gearbox no-load test device according to claim 9, characterized in that: A sensor placement groove (6) is provided on each of the left and right sides of the top of the swing base (3), and a swing rod (26) is rotatably connected inside each of the sensor placement grooves (6). A temperature sensor (7) is provided on the top of one of the swing rods (26), and a noise sensor is provided on the top of the other of the swing rods (26).

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