CN215860616U

CN215860616U - Load testing device for wind turbine generator

Info

Publication number: CN215860616U
Application number: CN202121785114.3U
Authority: CN
Inventors: 康庆文; 靳东秀
Original assignee: Dalian Jiayun Electronic Technology Co ltd
Current assignee: Dalian Jiayun Electronic Technology Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-02-18
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a load testing device for a wind turbine generator, which comprises a bottom column, a wind direction load adjusting mechanism and a lifting mechanism, wherein a mechanism platform is installed at the upper end of the bottom column, the wind direction load adjusting mechanism is installed inside the mechanism platform, the wind direction load adjusting mechanism is specifically composed of a driving motor, a driving shaft, a driving fluted disc, a connecting shaft neck and a rotating fluted disc, the rotating fluted disc is installed on the wind direction load adjusting mechanism, the driving fluted disc is connected with two sides of the rotating fluted disc in a meshed mode, the driving motor is installed at the lower end of the driving fluted disc through the driving shaft, and the connecting shaft neck is welded at the upper end of the rotating fluted disc. The wind power strength of different positions and different heights can be effectively subjected to load testing, and the testing efficiency is improved.

Description

Load testing device for wind turbine generator

Technical Field

The utility model relates to the technical field of wind power generation, in particular to a load testing device for a wind turbine generator.

Background

Wind power generation is one of the most mature power generation modes with the most extensive development prospect in renewable energy development, and has the most promising prospect in scale development and commercialization development, and due to the prominent effects of the wind power generation on reducing environmental pollution, adjusting energy structure, solving the problem of power consumption of residents in remote areas and the like, the wind power generation is more and more emphasized by all countries in the world and is widely developed and applied. In recent years, the development of wind power generation is rapid in China, wind power installations are doubled every year, and the structural safety of wind turbine generators, namely safety performance indexes, gradually become the focus of attention of wind turbine generator manufacturers, owners and investors.

Patent number CN212408809U discloses a wind turbine load testing device; including controlgear, uninterrupted power source, three first strainometers of group, three second strainometers of group and three third strainometers of group, controlgear and uninterrupted power source install on wheel hub, every group first strainometer is installed respectively in blade lateral wall bottom, blade lateral wall middle part and blade lateral wall top, every group the second strainometer is installed respectively in blade inside wall bottom, blade inside wall middle part and blade inside wall top, every group the third strainometer is installed respectively in blade inside wall bottom, blade inside wall middle part and blade inside wall top. According to the utility model, the first strain gauge, the second strain gauge and the third strain gauge are arranged, so that the load state of the blade can be monitored in real time, the fault sign can be early warned in advance before a super-huge accident occurs, detection personnel can be guided to replace and maintain the blade, and the occurrence of the super-huge fault is avoided.

This wind turbine generator system load testing arrangement has following drawback: 1. the effective load test can not be carried out on the wind power strength in different directions, so that the test efficiency is reduced; 2. and the load test can not be carried out on the wind power strength at different heights, so that the test efficiency is reduced. Therefore, the load testing device for the wind turbine generator is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a load testing device for a wind turbine generator, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a load testing device for wind turbine generator system, includes the foundation, still includes wind direction load adjustment mechanism and elevating system, the foundation upper end is installed has the mechanism platform, mechanism platform internally mounted has wind direction load adjustment mechanism, wind direction load adjustment mechanism specifically comprises driving motor, drive shaft, drive fluted disc, connection axle journal and rotatory fluted disc, the last rotatory fluted disc of installing of wind direction load adjustment mechanism, rotatory fluted disc both sides all mesh and are connected with the drive fluted disc, drive fluted disc lower extreme installs driving motor through the drive shaft, the welding of rotatory fluted disc upper end has the connection axle journal.

Furthermore, a hydraulic column is mounted on the lifting mechanism, an oil storage cavity and a hydraulic oil cavity are formed in the hydraulic column, the oil storage cavity is communicated with the hydraulic oil cavity through a pressure regulating pump, a telescopic column is mounted in the hydraulic oil cavity in an embedded mode, and a mounting buckle is welded at the top end of the telescopic column; the lifting mechanism is used for lifting and adjusting the fan, so that the load condition of wind power with different heights can be tested, and the testing efficiency is improved.

Furthermore, a load column is mounted at the upper end of the bottom column through a mechanism table, a top pulley and a rope guide wheel are mounted on the top end and the side wall of the load column respectively, a stay cord motor is mounted at the lower end of the left side wall of the load column, a lifting mechanism is mounted in the load column, a fan is mounted at the upper end of the lifting mechanism, and the fan slides on the side face of the load column; the load column is used for supporting and stabilizing the fan, and is favorable for wind load testing.

Furthermore, the upper end of the fan is connected with a steel wire pull rope, the steel wire pull rope rounds a top pulley and is connected with a pull rope motor together with a rope guide wheel, the lower end of the bottom column is welded with a base, and the base is fixedly arranged on a terrace; the fan is used for carrying out wind load test, provides different wind load test data for the experiment.

Furthermore, a machine core is installed on the pull rope motor, a machine shaft is installed in the machine core, and a rope winding wheel is installed at the front end of the machine shaft; the stay cord motor is used for assisting the fan to lift and adjust, and improves the test efficiency.

Further, the fan is provided with a body, the front end of the body is provided with an impeller, the impeller is fixedly provided with a blade, the upper end of the body is provided with a pull rope buckle, the fan rotates to test wind load, load data is tested, and test work is effectively carried out.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the wind direction load adjusting mechanism, when the testing device is used for carrying out load testing, load testing is required to be carried out according to wind forces in different wind directions, the power switch is turned on, the driving motor on the wind direction load adjusting mechanism is electrified to work to drive the driving shaft to rotate, the driving shaft drives the driving fluted disc to rotate, the driving fluted disc is meshed and connected with the rotating fluted disc, the driving fluted disc drives the rotating fluted disc to rotate, the rotating fluted disc drives the load column at the upper end to rotate through the connecting shaft neck, the fan on the load column faces the correct wind direction, the blades and the impellers on the fan are subjected to the wind force to rotate, and loads are tested.

2. The utility model is provided with the stay cord motor and the lifting mechanism, because the strength of the wind power received at different heights is different, the strength of the wind power at different heights needs to be tested, the power switch is turned on, the stay cord motor and the pressure regulating pump in the lifting mechanism are electrified to work, the pressure regulating pump in the hydraulic column of the lifting mechanism conveys the hydraulic oil in the oil storage cavity into the hydraulic oil cavity, the pressure in the hydraulic oil cavity is increased, the telescopic column is lifted to drive the fan arranged at the upper end to be lifted, the stay cord motor works, the machine core drives the machine shaft to rotate, the rope winding wheel at the front end of the machine shaft rotates to wind the steel wire stay cord, the steel wire stay cord reduces the resistance through the rope guide wheel and the top pulley, the fan is lifted upwards, the stability is kept, when the fan is lifted to a proper height, the load test can be carried out, and thus, the effective load test can be carried out on the strength of the wind power at different heights, the testing efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a load testing device for a wind turbine generator according to the present invention;

FIG. 2 is a schematic diagram of an internal structure of a mechanism table of the load testing device for the wind turbine generator system;

FIG. 3 is a schematic structural diagram of a lifting mechanism of the load testing device for the wind turbine generator system according to the present invention;

FIG. 4 is a schematic structural view of a pull rope motor of the load testing device for the wind turbine generator set according to the present invention;

fig. 5 is a schematic structural diagram of a fan of the load testing device for the wind turbine generator system.

In the figure: 1. a terrace; 2. a bottom pillar; 3. a mechanism table; 4. a pull cord motor; 5. a steel wire rope; 6. a rope guide pulley; 7. a top pulley; 8. a fan; 9. a lifting mechanism; 10. a load column; 11. a base; 12. a drive motor; 13. a drive shaft; 14. a driving fluted disc; 15. connecting the shaft neck; 16. a wind direction load adjustment mechanism; 17. rotating the fluted disc; 18. an oil storage chamber; 19. a hydraulic oil chamber; 20. installing a buckle; 21. a telescopic column; 22. a hydraulic column; 23. a pressure regulating pump; 24. a rope winding wheel; 25. a crankshaft; 26. a movement; 27. pulling the rope buckle; 28. a body; 29. a machine blade; 30. an impeller.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-5, a load testing device for wind turbine generator system, includes pillar 2, still includes wind direction load adjustment mechanism 16 and elevating system 9, a mechanism platform 3 is installed to 2 upper ends of pillar, mechanism platform 3 internally mounted has wind direction load adjustment mechanism 16, wind direction load adjustment mechanism 16 specifically comprises driving motor 12, drive shaft 13, drive fluted disc 14, connecting journal 15 and rotatory fluted disc 17, install rotatory fluted disc 17 on the wind direction load adjustment mechanism 16, rotatory fluted disc 17 both sides all mesh connection has drive fluted disc 14, driving motor 12 is installed through drive shaft 13 to drive fluted disc 14 lower extreme, the welding of rotatory fluted disc 17 upper end has connecting journal 15.

The lifting mechanism 9 is provided with a hydraulic column 22, an oil storage cavity 18 and a hydraulic oil cavity 19 are formed in the hydraulic column 22, the oil storage cavity 18 is communicated with the hydraulic oil cavity 19 through a pressure regulating pump 23, a telescopic column 21 is embedded in the hydraulic oil cavity 19, and the top end of the telescopic column 21 is welded with an installation buckle 20; the lifting mechanism 9 is used for lifting and adjusting the fan 8, so that the load condition of wind power with different heights can be tested, and the testing efficiency is improved.

The upper end of the bottom column 2 is provided with a load column 10 through a mechanism platform 3, the top end and the side wall of the load column 10 are respectively provided with a top end pulley 7 and a rope guide pulley 6, the lower end of the left side wall of the load column 10 is provided with a rope pulling motor 4, a lifting mechanism 9 is arranged in the load column 10, the upper end of the lifting mechanism 9 is provided with a fan 8, and the fan 8 slides on the side surface of the load column 10; the load column 10 is used for supporting and stabilizing the fan 8, and is beneficial to wind load testing.

The upper end of the fan 8 is connected with a steel wire pull rope 5, the steel wire pull rope 5 is connected with a pull rope motor 4 by bypassing a top pulley 7 and a rope guide pulley 6, the lower end of the bottom column 2 is welded with a base 11, and the base 11 is fixedly arranged on a floor 1; the fan 8 is used for wind load test and provides different wind load test data for experiments.

A movement 26 is mounted on the pull rope motor 4, a crankshaft 25 is mounted in the movement 26, and a rope winding wheel 24 is mounted at the front end of the crankshaft 25; stay cord motor 4 is used for carrying out supplementary lift adjustment to fan 8, improves efficiency of software testing.

The wind power generator is characterized in that a generator body 28 is installed on the fan 8, an impeller 30 is installed at the front end of the generator body 28, a motor blade 29 is fixedly installed on the impeller 30, a pull rope buckle 27 is arranged at the upper end of the generator body 28, the fan 8 rotates to test wind power load, load data are tested, and test work is effectively conducted.

It should be noted that, when the load testing device for the wind turbine generator set is in operation, the wind direction load adjusting mechanism 16 is provided, when the load testing device is in operation, load testing is required to be performed according to wind forces in wind directions in different directions, the power switch is turned on, so that the driving motor 12 on the wind direction load adjusting mechanism 16 is powered on to operate, the driving shaft 13 is driven to rotate, the driving shaft 13 drives the driving fluted disc 14 to rotate, the driving fluted disc 14 is meshed and connected to the rotating fluted disc 17, so that the driving fluted disc 14 drives the rotating fluted disc 17 to rotate, the rotating fluted disc 17 drives the load column 10 at the upper end to rotate through the connecting shaft neck 15, the fan 8 on the load column 10 faces the correct wind direction, the blades 29 and the impellers 30 on the fan 8 are subjected to wind force to rotate, and load testing is performed, so that effective load testing can be performed on the strength of wind forces in the wind directions in different directions, the testing efficiency is improved; by arranging the stay cord motor 4 and the lifting mechanism 9, because the strength of the wind power received by the stay cord motor 4 and the lifting mechanism 9 is different at different heights, the strength of the wind power at different heights needs to be tested, a power switch is turned on, so that the stay cord motor 4 and the pressure regulating pump 23 in the lifting mechanism 9 are electrified to work, the pressure regulating pump 23 in the hydraulic column 22 of the lifting mechanism 9 conveys the hydraulic oil in the oil storage chamber 18 into the hydraulic oil chamber 19, the pressure in the hydraulic oil chamber 19 is increased, the telescopic column 21 is lifted to drive the fan 8 arranged at the upper end to be lifted, the stay cord motor 4 works, the machine core 26 drives the machine shaft 25 to rotate, the rope winding wheel 24 at the front end of the machine shaft 25 rotates to wind the steel wire stay cord 5, the resistance of the steel wire stay cord 5 is reduced through the rope guide wheel 6 and the top end pulley 7, the fan 8 is pulled upwards, the fan 8 is stably lifted and kept stable, and when the wind power is lifted to a proper height, the load test can be carried out, therefore, effective load test can be performed on the wind power strength at different heights, and the test efficiency is improved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A load testing device for a wind turbine generator comprises a bottom column (2), and is characterized by further comprising a wind direction load adjusting mechanism (16) and a lifting mechanism (9), a mechanism platform (3) is arranged at the upper end of the bottom column (2), a wind direction load adjusting mechanism (16) is arranged in the mechanism platform (3), the wind direction load adjusting mechanism (16) is composed of a driving motor (12), a driving shaft (13), a driving fluted disc (14), a connecting shaft neck (15) and a rotating fluted disc (17), a rotary fluted disc (17) is arranged on the wind direction load adjusting mechanism (16), both sides of the rotary fluted disc (17) are engaged and connected with a driving fluted disc (14), the drive motor (12) is installed through drive shaft (13) to drive fluted disc (14) lower extreme, rotatory fluted disc (17) upper end welding has connection axle journal (15).

2. The load testing device for the wind turbine generator according to claim 1, wherein: install hydraulic column (22) on elevating system (9), oil storage chamber (18) and hydraulic oil chamber (19) have been seted up to hydraulic column (22) inside, be linked together through pressure regulating pump (23) between oil storage chamber (18) and hydraulic oil chamber (19), inlay in hydraulic oil chamber (19) and install flexible post (21), flexible post (21) top welding has installation knot (20).

3. The load testing device for the wind turbine generator according to claim 1, wherein: load post (10) are installed through mechanism platform (3) in foundation (2) upper end, install top pulley (7) and rope guide pulley (6) on load post (10) top and the lateral wall respectively, stay cord motor (4) are installed to load post (10) left side wall lower extreme, load post (10) internally mounted has elevating system (9), fan (8) are installed to elevating system (9) upper end, fan (8) slide in load post (10) side.

4. The load testing device for the wind turbine generator according to claim 3, wherein: fan (8) upper end is connected with steel wire stay cord (5), steel wire stay cord (5) are walked around top pulley (7) and are connected with stay cord motor (4) with rope guide pulley (6), the welding of foundation (2) lower extreme has base (11), base (11) fixed mounting is on terrace (1).

5. The load testing device for the wind turbine generator according to claim 3, wherein: install core (26) on stay cord motor (4), install bent axle (25) in core (26), rope winding wheel (24) are installed to bent axle (25) front end.

6. The load testing device for the wind turbine generator according to claim 3, wherein: the fan is characterized in that a machine body (28) is installed on the fan (8), an impeller (30) is installed at the front end of the machine body (28), an impeller blade (29) is fixedly installed on the impeller (30), and a pull rope buckle (27) is arranged at the upper end of the machine body (28).