Wind power transmission testing device

Abstract

The embodiment of the utility model provides a wind power transmission testing device, and relates to the technical field of wind power transmission unit testing. The wind power transmission test device comprises a tested module and a first test driving module, the tested module comprises a first motor and a first unit transmission system which are in transmission connection, and the first test driving module is in transmission connection with one end, away from the first unit transmission system, of the first motor through a first coupler. The first tested driving module, the first coupler, the first motor and the first unit transmission system are sequentially connected in the preset direction, and the preset direction is parallel to the axis direction of the first coupler. The first test driving module is used as a supplement of the first motor of the tested module and is mainly used for providing the rated power required by exceeding the rated load of the first motor, so that the driving motor in the first test driving module can select a motor with a lower load, and the cost of the wind power transmission testing device is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind force drive unit test technical field, specifically, relate to a kind of wind power transmission test device. BACKGROUND

[0002] Wind power generation, as a clean and sustainable energy solution, plays an increasingly important role in addressing climate change and energy crisis.

[0003] The harshness of the wind turbine application environment and the special requirements for long service life, high reliability and safety of the unit make it necessary to establish a wind turbine test bench to test important components such as the gearbox, main shaft and generator of the wind turbine, which is very important for optimizing product performance and ensuring product quality.

[0004] The inventor found that some existing wind power transmission test devices are relatively expensive. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a wind power transmission test device that can reduce the cost of the wind power test device.

[0006] The embodiments of the utility model can be implemented as follows:

[0007] In a first aspect, the utility model provides a wind power transmission test device, comprising:

[0008] The measured module includes a first motor and a first unit transmission system connected by transmission.

[0009] The first test drive module is connected to the first motor by a first coupling.

[0010] The first test drive module, the first coupling, the first motor and the first unit transmission system are connected in order along a predetermined direction, and the predetermined direction is parallel to the axis direction of the first coupling.

[0011] In an optional embodiment, the first test drive module includes a first drive motor, and the first drive motor is connected to the first motor by a first coupling.

[0012] In an optional embodiment, the first test drive module includes a first drive motor and a first tool box connected by transmission, and the first tool box is used for speed change or torque change of the first drive motor. The first drive motor, the first tool box, the first coupling, the first motor and the first unit transmission system are connected in order along a predetermined direction.

[0013] In an optional embodiment, the module under test further comprises a second motor and a second machine set transmission system connected in transmission, and the first test drive module, the first coupling, the first motor, the first machine set transmission system, the second machine set transmission system and the second motor are connected in sequence along a preset direction.

[0014] In an optional embodiment, the wind power transmission test device further comprises a preset coupling, and the first test drive module, the first coupling, the first motor, the first machine set transmission system, the preset coupling, the second machine set transmission system and the second motor are connected in transmission along a preset direction.

[0015] In an optional embodiment, the wind power transmission test device further comprises a second test drive module, and the second test drive module is connected in transmission with the second motor away from one end of the second machine set transmission system through a third coupling.

[0016] In an optional embodiment, the second test drive module comprises a second drive motor, and the second drive motor is connected in transmission with the second motor away from one end of the second machine set transmission system through a third coupling.

[0017] In an optional embodiment, the second test drive module comprises a second drive motor and a second tool box connected in transmission, and the second tool box away from one end of the second drive motor is connected in transmission with the second motor away from one end of the second machine set transmission system through a third coupling, and the second tool box is used for speed change or torque change of the second drive motor.

[0018] In an optional embodiment, the first drive motor is an asynchronous motor or a doubly-fed motor.

[0019] In an optional embodiment, the wind power transmission test device further comprises a sensor assembly, at least one of the first motor, the first machine set transmission system and the first test drive module is provided with the sensor assembly, and the sensor assembly is used for detecting at least one of torque, rotating speed, temperature and vibration.

[0020] The wind power transmission test device provided by the embodiment of the utility model includes a measured module and a first test driving module, the measured module includes a test component, the test component includes a first motor and a first unit transmission system in transmission connection, the first test driving module is in transmission connection with one end of the first motor away from the first unit transmission system through a first shaft coupling, the first measured driving module, the first shaft coupling, the first motor and the first unit transmission system are connected in sequence along a preset direction, and the preset direction is parallel to the axial direction of the first shaft coupling. The first test driving module is used as the supplement of the first motor of the test component, mainly used for providing the rated power required for exceeding the rated load of the first motor, therefore, the driving motor in the first test driving module can select a motor with lower load, compared with the case that the first motor in the test component is removed and a motor with high load is selected to drive the first unit transmission system directly connected, the cost of the wind power transmission test device can be reduced, and the disassembly and assembly efficiency of the wind power transmission test device in the embodiment by the operating personnel is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can be obtained without creative labor on the premise of the drawings.

[0022] Figure 1 The structural schematic diagram of the wind power transmission test device provided by the embodiment of the utility model is shown in the figure.

[0023] Figure 2 The structural schematic diagram of the wind power transmission test device provided by the optional embodiment of the utility model is shown in the figure.

[0024] Figure 3 The electrical connection schematic diagram of the wind power transmission test device provided by the embodiment of the utility model is shown in the figure.

[0025] Icon: 1-wind power transmission test device; 100-rack; 210-first motor; 220-first unit transmission system; 300-preset shaft coupling; 410-first driving motor; 420-first shaft coupling; 430-second shaft coupling; 440-first tool box; 510-second motor; 520-second unit transmission system; 610-second driving motor; 620-third shaft coupling; 630-fourth shaft coupling; 640-second tool box; 700-switch cabinet; 800-rectifier filter; 910-first inverter unit; 920-second inverter unit; 930-third inverter unit; 940-fourth inverter unit; 950-first wind power converter; 960-second wind power converter. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0027] Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0028] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the present application product in use, only for the convenience of describing the present application and simplifying the description, and not to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0030] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0032] The specific structure of the wind power transmission test device provided by the embodiments of the present application and the corresponding technical effects brought by it will be described in detail below in conjunction with the patent drawings.

[0033] For some existing wind power transmission test device, when testing the generator set transmission system in the measured component, generally through the motor of the measured component itself to test, but through the motor of the measured component itself to test the generator set transmission system, the generator set transmission system cannot be tested under overload working condition, and the existing wind power test device tests the generator set transmission system under overload working condition, mostly by removing the motor of the measured component, and designing a special motor, for example, in order to test the 20MW generator set transmission system, a 26MW special motor is added to connect with the generator set transmission system, and the special motor is designed to connect with the generator set transmission system to test the generator set transmission system under overload working condition.

[0034] Since the special motor is designed to test the generator set transmission system under overload working condition, not only a high load motor needs to be designed, but also the original motor of the measured component needs to be removed, therefore, not only the cost of designing the high load motor is increased, but also the cost of removing the original motor of the measured component is increased, and the disassembly difficulty of the wind power transmission test device is increased.

[0035] Please refer to Figures 1-2 The wind power transmission test device 1 provided by the embodiment of the utility model includes a measured module and a first test driving module, the measured module includes a test component, the test component includes a first motor 210 and a first unit transmission system 220 in transmission connection, the first test driving module is in transmission connection with one end of the first motor 210 away from the first unit transmission system 220 through a first coupling 420, the first measured driving module, the first coupling 420, the first motor 210 and the first unit transmission system 220 are connected in order along a preset direction, and the preset direction is parallel to the axial direction of the first coupling 420.

[0036] It should be noted that the first unit transmission system 220 includes gear box, main shaft and other transmission structures in transmission connection.

[0037] In the embodiment, the first test driving module is connected in series with the module under test. When the first unit transmission system 220 is tested under overload conditions, the first motor 210 of the test component does not need to be removed, and a high-power motor does not need to be designed. The first test driving module can be connected in transmission with the first motor 210 of the test component. It can be understood that the first test driving module is used as a supplement to the first motor 210 of the test component and is mainly used to provide rated power required to exceed the rated load of the first motor 210. Therefore, the driving motor in the first test driving module can be a motor with lower load. Compared with the case where the first motor 210 of the test component is removed and a high-load motor is selected to drive the first unit transmission system 220 directly connected, the cost of the wind power transmission test device 1 can be reduced, and the disassembly and assembly efficiency of the wind power transmission test device 1 in the embodiment can be improved.

[0038] Optionally, in some optional embodiments, the first test driving module includes a first driving motor 410, and the first driving motor 410 is connected in transmission with one end of the first motor 210 away from the first unit transmission system 220 through a first coupling 420. When the first coupling 420 is a medium-speed coupling and the first driving motor 410 is a medium-speed motor, the first driving motor 410 can be connected in series with the first motor 210 through the first coupling 420. It can be understood that at this time, the output speed and torque of the first driving motor 410 have approached or met the test requirements, and no additional speed or torque changing device is required. The first driving motor 410 can directly work with the first motor 210 as a supplemental load.

[0039] Optionally, in the embodiment, the first test driving module includes a first driving motor 410 and a first tool box 440 connected in transmission. The first tool box 440 is used for speed changing or torque changing of the first driving motor 410. The first driving motor 410, the first tool box 440, the first coupling 420, the first motor 210, and the first unit transmission system 220 are connected in transmission along a preset direction.

[0040] It should be noted that the first tool box 440 can be understood as a gearbox, which is mainly used for speed changing or torque changing of the first driving motor 410.

[0041] When the first coupling 420 is a medium-speed coupling and the first drive motor 410 is a high-speed motor, the first drive motor 410 needs to be connected with the first coupling 420 through the first tool box 440, the first tool box 440 has a torque conversion capability, which can adjust the output torque at different speeds to ensure that the first unit transmission system 220 can withstand various load conditions during the test process. When there is a large difference in the speed or torque of the first motor 210 and the first drive motor 410 and other parameters, the direct connection between the first drive motor 410 and the first motor 210 may cause excessive mechanical stress, affecting the stability and service life of the entire wind power transmission test device 1. Therefore, the first drive motor 410 can be connected with the first coupling 420 through the first tool box 440 to connect with the first motor 210, ensuring the stability and reliability of power transmission between the first drive motor 410 and the first motor 210, reducing the stress caused by vibration and misalignment. In detail, in the embodiment, the first drive motor 410 is drivingly connected with the first tool box 440 through the second coupling 430.

[0042] Optionally, the measured module further includes a test assembly, the test assembly including a second motor 510 and a second unit transmission system 520 in driving connection, the first test drive module, the first coupling 420, the first motor 210, the first unit transmission system 220, the second unit transmission system 520 and the second motor 510 being connected in sequence along a preset direction.

[0043] It can be understood that the test assembly and the measured assembly can be used for pull test, one of the measured assembly and the test assembly being a load end and the other being a drive end, and since the first test drive module, the first coupling 420, the first motor 210, the first unit transmission system 220, the second unit transmission system 520 and the second motor 510 are connected in sequence along a preset direction, the stability of power transmission can be ensured.

[0044] The wind power transmission test device 1 further includes a preset coupling 300, the first test drive module, the first coupling 420, the first motor 210, the first unit transmission system 220, the preset coupling 300, the second unit transmission system 520 and the second motor 510 being drivingly connected in sequence along a preset direction, that is, the first unit transmission system 220 is drivingly connected with the second unit transmission system 520 through the preset coupling 300, and through the arrangement of the preset coupling 300, the stability of the driving connection between the first generator set transmission and the second unit transmission system 520 can be ensured, and the axes of the two transmission systems can be aligned to avoid vibration and damage caused by misalignment.

[0045] The wind power transmission test device 1 further comprises a second test driving module, which is drivingly connected to one end of the second motor 510 away from the second unit transmission system 520 through a third coupling 620. It can be understood that, in the overload test, the first test driving module and the tested component can be used as the load end, and the test component and the second test driving module can be used as the driving end.

[0046] Similarly, in some optional embodiments, the second test driving module comprises a second driving motor 610, which is drivingly connected to one end of the second motor 510 away from the second unit transmission system 520 through the third coupling 620. As described above, when the second driving motor 610 is a medium-speed motor and the second coupling is a medium-speed coupling, the second driving motor 610 can be connected to the second motor 510 in sequence through the third coupling 620. It can be understood that, at this time, the output speed and torque of the second driving motor 610 have approached or met the test requirements, and no additional speed or torque changing device is needed, and the second driving motor 610 can be used as a supplementary load to work with the second motor 510.

[0047] Optionally, in the present embodiment, the second test driving module comprises a drivingly connected second driving motor 610 and a second tool box 640, and the second tool box 640 is used for changing the speed or torque of the second driving motor 610. One end of the second tool box 640 away from the second driving motor 610 is drivingly connected to one end of the second motor 510 away from the second unit transmission system 520 through the third coupling 620. That is, the first driving motor 410, the first tool box 440, the first coupling 420, the first motor 210, the first unit transmission system 220, the preset coupling 300, the second unit transmission system 520, the second motor 510, the third coupling 620, the second tool box 640 and the second driving motor 610 are drivingly connected in sequence along a preset direction.

[0048] It should be noted that the second tool box 640 can also be understood as a speed changer, which is mainly used for changing the speed or torque of the second driving motor 610.

[0049] When the third coupling 620 is a medium-speed coupling and the second driving motor 610 is a high-speed motor, the second driving motor 610 needs to be connected with the third coupling 620 through the second tool box 640, the second tool box 640 has a torque conversion capability, and can adjust the output torque at different rotating speeds to ensure that the second unit transmission system 520 can withstand various load conditions during the test process. When there is a large difference in rotating speed or torque between the second motor 510 and the second driving motor 610 or other parameters, direct connection between the second driving motor 610 and the second motor 510 can cause excessive mechanical stress, affecting the stability and service life of the entire wind power transmission test device 1. Therefore, the second driving motor 610 can be connected with the third coupling 620 through the second tool box 640 to connect with the second motor 510, so as to ensure the stability and reliability of power transmission between the second driving motor 610 and the second motor 510, and reduce the stress caused by vibration and misalignment. In detail, in the embodiment, the second tool box 640 is drivingly connected with the second driving motor 610 through the fourth coupling 630.

[0050] Optionally, the first driving motor 410 is an asynchronous motor or a doubly-fed motor. The second driving motor 610 can also be an asynchronous motor or a doubly-fed motor. Of course, in some other embodiments, the first driving motor 410 and the second driving motor 610 can also be other types of motors.

[0051] Optionally, the wind power transmission test device 1 further comprises a sensor assembly, at least one of the first motor 210, the first unit transmission system 220 and the first test driving module is provided with the sensor assembly, and the sensor assembly is used to detect at least one of torque, rotating speed, temperature and vibration.

[0052] It can be understood that the sensor assembly can include a plurality of sensors, such as torque sensors, rotating speed sensors, temperature sensors or vibration sensors.

[0053] Of course, at least one of the second test driving module and the second unit transmission system 520 is provided with a sensor assembly. It can be understood that the torque sensor, the rotating speed sensor, the temperature sensor and the vibration sensor can not only be used to detect the load end device, but also be widely used in various parts of the entire wind power transmission test device 1 to ensure comprehensive and accurate monitoring of the operating state of the system.

[0054] In the embodiment, the wind power transmission test device 1 further comprises a rack 100, and the first driving motor 410, the first tool box 440, the first coupling 420, the first motor 210, the first unit transmission system 220, the preset coupling 300, the second unit transmission system 520, the second motor 510, the third coupling 620, the second tool box 640 and the second driving motor 610 are all mounted on the rack 100.

[0055] Optionally, please refer to Figure 3 In the embodiment, the wind power transmission test device 1 further comprises a switch cabinet 700, a rectifier filter 800, a first inverter unit 910, a second inverter unit 920, a third inverter unit 930, a fourth inverter unit 940, a first wind power converter 950 and a second wind power converter 960, wherein the switch cabinet 700 is connected with the rectifier filter 800, the first inverter unit 910, the second inverter unit 920, the third inverter unit 930 and the fourth inverter unit 940 are all connected with the rectifier filter 800, wherein one end of the first inverter unit 910 away from the rectifier filter 800 is connected with the first drive motor 410, one end of the second inverter unit 920 away from the rectifier filter 800 is connected with the measured assembly through the first wind power converter 950, one end of the third inverter unit 930 away from the rectifier filter 800 is connected with the test assembly through the second wind power converter 960, and one end of the fourth inverter unit 940 away from the rectifier filter 800 is connected with the second drive motor 610.

[0056] Through the effective combination of the switch cabinet 700, the rectifier filter 800, the inverter unit and the wind power converter, the power conversion and control from the power grid to the wind turbine generator set can be realized, and the quality of the electric energy and the reliability of the system are ensured.

[0057] In summary, the wind power transmission test device 1 provided by the embodiment of the utility model includes a measured module and a first test drive module, the measured module includes a test assembly, the test assembly includes a first motor 210 and a first unit transmission system 220 in transmission connection, the first test drive module is in transmission connection with one end of the first motor 210 away from the first unit transmission system 220 through a first coupling 420, the first measured drive module, the first coupling 420, the first motor 210 and the first unit transmission system 220 are connected in order along a preset direction, and the preset direction is parallel to the axis direction of the first coupling 420. The first test drive module is used as the supplement of the first motor 210 of the test assembly and is mainly used for providing the rated power required for exceeding the rated load of the first motor 210, therefore, the drive motor in the first test drive module can select a motor with lower load, which can reduce the cost of the wind power transmission test device 1 and facilitate the disassembly and assembly efficiency of the wind power transmission test device 1 in the embodiment compared with the case of directly connecting the first unit transmission system 220 with the motor with high load after removing the first motor 210 in the test assembly.

[0058] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A wind power transmission test device, characterized in that, The wind power transmission test device comprises: a measured module comprising a first motor (210) and a first unit transmission system (220) in transmission connection; a first test drive module in transmission connection with the first motor (210) through a first coupling (420) away from one end of the first unit transmission system (220). Wherein, the first test drive module, the first coupling (420), the first motor (210) and the first unit transmission system (220) are connected in sequence along a preset direction, and the preset direction is parallel to the axis direction of the first coupling (420).

2. The wind power transmission test device according to claim 1, wherein: the first test drive module comprises a first drive motor (410) in transmission connection with the first motor (210) through the first coupling (420) away from one end of the first unit transmission system (220).

3. The wind power transmission test device according to claim 1, wherein: the first test drive module comprises a first drive motor (410) and a first tool box (440) in transmission connection, the first tool box (440) is used for speed change or torque change of the first drive motor (410), and the first drive motor (410), the first tool box (440), the first coupling (420), the first motor (210) and the first unit transmission system (220) are connected in sequence along the preset direction.

4. The wind power transmission test device according to claim 1, wherein: the measured module further comprises a second motor (510) and a second unit transmission system (520) in transmission connection, and the first test drive module, the first coupling (420), the first motor (210), the first unit transmission system (220), the second unit transmission system (520) and the second motor (510) are connected in sequence along the preset direction.

5. The wind power transmission test device according to claim 4, wherein: the wind power transmission test device further comprises a preset coupling (300), and the first test drive module, the first coupling (420), the first motor (210), the first unit transmission system (220), the preset coupling (300), the second unit transmission system (520) and the second motor (510) are connected in sequence along the preset direction.

6. The wind power transmission test device according to claim 4, wherein: the wind power transmission test device further comprises a second test drive module in transmission connection with the second motor (510) through a third coupling (620) away from one end of the second unit transmission system (520).

7. The wind power transmission test device according to claim 6, wherein: The second test drive module comprises a second drive motor (610) which is drivingly connected to one end of the second motor (510) away from the second unit transmission system (520) through the third coupling (620).

8. The wind power transmission test device according to claim 6, characterized in that: The second test drive module comprises a second drive motor (610) which is drivingly connected to one end of the second motor (510) away from the second unit transmission system (520) through the third coupling (620).

9. The wind power transmission test device according to claim 3, characterized in that: The first drive motor (410) is an asynchronous motor or a double-fed motor.

10. The wind power transmission test device according to claim 1, characterized in that: The wind power transmission test device further comprises a sensor assembly, at least one of the first motor (210), the first unit transmission system (220) and the first test drive module is provided with the sensor assembly, and the sensor assembly is used for detecting at least one of torque, rotating speed, temperature and vibration.

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