CN109708880B - Static load fatigue test device for yaw speed reducer test bed - Google Patents
Static load fatigue test device for yaw speed reducer test bed Download PDFInfo
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- CN109708880B CN109708880B CN201910079898.9A CN201910079898A CN109708880B CN 109708880 B CN109708880 B CN 109708880B CN 201910079898 A CN201910079898 A CN 201910079898A CN 109708880 B CN109708880 B CN 109708880B
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 18
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Abstract
The invention provides a static load fatigue test device of a yaw speed reducer test bed, which comprises: the device comprises a test bed, a rotating speed torque sensor, a sensor system, a secondary planetary reducer, a servo motor and fixed teeth, wherein the test bed is provided with the fixed teeth, so that the fixed teeth are meshed with an output gear of a yaw reducer to be tested; the servo motor is connected with a secondary planetary reducer, the rotating speed torque sensor is arranged on the secondary planetary reducer, and the secondary planetary reducer is connected with a yaw reducer to be tested; during the test, the sensor system is arranged on the yaw reducer to be tested and is used for measuring the operation data of the yaw reducer to be tested. The invention can verify the capability of the yaw reducer for transmitting a given yaw load, estimate the service life of the yaw reducer according to the cycle number, and simulate the failure mode of the yaw reducer.
Description
Technical Field
The invention belongs to the technical field of yaw speed reducer inspection, and particularly relates to a static load fatigue test device for a yaw speed reducer test bed.
Background
The ability and longevity of the yaw decelerator to transfer loads while operating in a fan environment is important, and various failure modes of the yaw decelerator may occur during operation. Considering these factors, in order to better verify the capability of the yaw reducer for transmitting yaw load before leaving the factory, the service life of the yaw reducer is estimated, and how to provide a new static load fatigue test device for the yaw reducer test bed to understand the possible main failure parts and failure modes becomes a problem to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a static load fatigue test device for a yaw speed reducer test bed, which can better test the load transmission capacity and service life of a factory yaw speed reducer and understand the possible main failure modes of the yaw speed reducer in the operation of a fan.
In order to solve the problems, the invention adopts the following technical scheme:
A yaw decelerator test stand static load fatigue test device, comprising: the test bed comprises a rotating speed and torque sensor, a sensor system, a secondary planetary reducer, a servo motor and fixed teeth, wherein,
The test bench is provided with fixed teeth, so that the fixed teeth are meshed with an output gear of the yaw reducer to be tested;
The servo motor is connected with a secondary planetary reducer, the rotating speed torque sensor is arranged on the secondary planetary reducer, and the secondary planetary reducer is connected with a yaw reducer to be tested;
During the test, the sensor system is arranged on the yaw reducer to be tested and is used for measuring the operation data of the yaw reducer to be tested.
Further, the sensor system includes: a vibration sensor, an oil temperature sensor, a surface temperature sensor and a noise sensor, wherein,
The vibration sensor and the surface temperature sensor are adsorbed on the shell of the sensor to be tested,
The oil temperature sensor is inserted into an oil tank of the measured sensor.
Further, the method further comprises the following steps: and the PLC is respectively connected with the rotating speed and torque sensor and the sensor system and is used for transmitting the measured data to a computer for recording and analyzing.
Further, the two-stage planetary reducer is connected with the yaw reducer to be tested by using a transfer shaft.
Further, fixed teeth are arranged on the test bench and meshed with an output gear of the yaw reducer to be tested.
Further, the servo motor is a brushless servo motor and is used for providing constant torque for forward and reverse rotation loading.
A method for performing a static load fatigue test using a static load fatigue test apparatus for a yaw retarder test stand, comprising:
fixing a yaw speed reducer on the test device, and enabling the fixed teeth to be meshed with an output gear of the yaw speed reducer to be tested;
Starting a brushless servo motor to circularly load under a set load, and recording the vibration speed, torque, rotating speed, oil temperature, gauge temperature and noise of the yaw decelerator by using a sensor;
The yaw decelerator reaches the times of the set cyclic loading, and the time-effect mode does not appear in the time period, and the test is considered to be successful; if the yaw reducer fails in the test period, recording loading cycle times, failure parts and failure modes when the yaw reducer fails, and analyzing operation data of the yaw reducer; if the yaw speed reducer is tested successfully, the test is resumed again until the yaw speed reducer fails, the loading cycle times, the failure parts and the failure modes at the moment are recorded after the yaw speed reducer fails, and the operation data of the yaw speed reducer is analyzed to perform service life verification.
The invention has the beneficial effects that:
The ability of the yaw retarder to deliver a given yaw load can be verified, the life of the yaw retarder can be estimated from the number of cycles, and the failure mode of the yaw retarder can be simulated.
Drawings
FIG. 1 is a schematic diagram of a static load fatigue test device of a yaw retarder test bed.
The device comprises a test support 1, a tested speed reducer 2, a rotating speed torque sensor 3, a secondary planetary speed reducer 4, a brushless servo motor 5, a connecting flange 6 and fixed teeth 8.
Detailed Description
In order to enable those skilled in the art to better understand the technical scheme of the present invention, the present invention will be further described in detail with reference to specific embodiments. It is noted that the embodiments described below are exemplary only for explaining the present invention, and are not to be construed as limiting the present invention. The examples are not to be construed as limiting the specific techniques or conditions described in the literature in this field or as per the specifications of the product. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
According to one aspect of the present invention, the present invention provides a static load fatigue test device for a yaw brake test stand, and fig. 1 is a schematic structural diagram of the static load fatigue test device for the yaw brake test stand according to the present invention, as shown in fig. 1, including: the device comprises a test bed, a rotating speed torque sensor, a sensor system, a secondary planetary reducer, a servo motor and fixed teeth, wherein the test bed is provided with the fixed teeth, so that the fixed teeth are meshed with an output gear of a yaw reducer to be tested; the servo motor is connected with a secondary planetary reducer, the rotating speed torque sensor is arranged on the secondary planetary reducer, and the secondary planetary reducer is connected with a yaw reducer to be tested; during the test, the sensor system is arranged on the yaw reducer to be tested and is used for measuring the operation data of the yaw reducer to be tested.
According to a specific embodiment of the invention, the sensor system comprises: a vibration sensor, an oil temperature sensor, a surface temperature sensor and a noise sensor, wherein, the vibration sensor and the surface temperature sensor are adsorbed on the shell of the measured sensor, and the oil temperature sensor is inserted into the oil tank of the measured sensor. Specifically, the main performance parameters recorded during the test include: vibration speed: measuring vibrations a sensor is arranged at position B in fig. 1 for real-time vibration detection, the sensor being able to determine the root mean square value of the vibration velocity (mm/s). Torque and rotational speed: the torque and rotation speed sensor is arranged at the position C in fig. 1, and is used for detecting the torque and rotation speed in real time, and the sensor can determine the output torque and rotation speed of the motor. Oil temperature: the oil temperature is measured in the body through a temperature sensor, the measuring point is shown as a position A in fig. 1, and the temperature is recorded in real time; surface temperature: the surface temperature is measured by a temperature sensor, the measuring point is shown as the position A in figure 1, and the temperature is recorded in real time. Noise: because the interference of the environmental noise is overlarge, the noise is measured by adopting the fixed-point positioning of the handheld noise collector.
According to a specific embodiment of the invention, the servo motor is a brushless servo motor for providing constant torque for forward and reverse rotation loading. The brushless servo motor carries out cyclic loading under a given load X, the driving motor is positively loaded to the load X and is immediately reversely loaded to the load X, and the cyclic loading is equivalent at the moment. In the test, the load X will be cycled thousands or tens of thousands of times. Characteristics of the brushless servo motor: the constant torque frequent forward and reverse rotation loading can be realized under the torque mode of the servo motor. The working characteristics of the brushless servo motor can meet the test method.
According to a specific embodiment of the invention, the invention further comprises: and the PLC is respectively connected with the rotating speed and torque sensor and the sensor system and is used for transmitting the measured data to a computer for recording and analyzing.
According to the specific embodiment of the invention, the secondary planetary reducer is connected with the yaw reducer to be tested by using a transfer shaft.
According to a specific embodiment of the invention, the test bench is provided with fixed teeth, so that the fixed teeth are meshed with an output gear of the yaw reducer to be tested.
According to another aspect of the invention, there is provided a method of performing a static load fatigue test using a yaw retarder test stand static load fatigue test apparatus, comprising:
fixing a yaw speed reducer on the test device, and enabling the fixed teeth to be meshed with an output gear of the yaw speed reducer to be tested;
Starting a brushless servo motor to circularly load under a set load, and recording the vibration speed, torque, rotating speed, oil temperature, gauge temperature and noise of the yaw decelerator by using a sensor;
The yaw decelerator reaches the times of the set cyclic loading, and the time-effect mode does not appear in the time period, and the test is considered to be successful; if the yaw reducer fails in the test period, recording loading cycle times, failure parts and failure modes when the yaw reducer fails, and analyzing operation data of the yaw reducer; if the yaw speed reducer is tested successfully, the test is resumed again until the yaw speed reducer fails, the loading cycle times, the failure parts and the failure modes at the moment are recorded after the yaw speed reducer fails, and the operation data of the yaw speed reducer is analyzed to perform service life verification.
According to the specific embodiment of the invention, the tested speed reducer is arranged on the test bed and is fixed on the test bed through the connecting flange, the fixed teeth are fixed on the test bed, the tested speed reducer is meshed with the fixed teeth, and the brushless servo motor is controlled through the brushless servo motor driver, so that the cyclic loading of the tested speed reducer is realized, and the output torque and the rotation speed of the motor are detected through the torque rotation speed sensor during the test.
According to a specific embodiment of the invention, the test conditions of the invention are: fixing a yaw speed reducer output pinion, and loading at the input end of the yaw speed reducer
In summary, the static load fatigue test device for the yaw reducer test bed can better test the load transmission capacity and service life of the yaw reducer from factory, and understand the possible main failure modes of the yaw reducer in the fan operation.
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by those skilled in the art within the scope of the application, as well as variations in the detailed description and application of the application may occur to those skilled in the art in light of the teachings of the application.
Claims (5)
1. The static load fatigue test method for the yaw speed reducer test bed is applied to a static load fatigue test device for the yaw speed reducer test bed, and is characterized in that the test device comprises: the device comprises a test bed, a rotating speed torque sensor, a sensor system, a secondary planetary reducer, a servo motor and fixed teeth, wherein the test bed is provided with the fixed teeth, so that the fixed teeth are meshed with an output gear of a yaw reducer to be tested; the servo motor is connected with a secondary planetary reducer, the rotating speed torque sensor is arranged on the secondary planetary reducer, and the secondary planetary reducer is connected with a yaw reducer to be tested; in the test, the sensor system is arranged on the yaw reducer to be tested and is used for measuring the operation data of the yaw reducer to be tested;
The servo motor is a brushless servo motor and is used for providing constant torque for forward and reverse rotation loading; the brushless servo motor carries out cyclic loading under a given load X, the driving motor is positively loaded to the load X and is immediately reversely loaded to the load X, and the cyclic loading is equivalent at the moment; in the test, the test will be cyclically loaded under load X thousands or tens of thousands of times;
The static load fatigue test method of the yaw speed reducer test bed comprises the following steps: fixing a yaw speed reducer on the test device, and enabling the fixed teeth to be meshed with an output gear of the yaw speed reducer to be tested; starting a brushless servo motor to circularly load under a set load, and recording the vibration speed, torque, rotating speed, oil temperature, gauge temperature and noise of the yaw decelerator by using a sensor; the yaw decelerator reaches the times of the established cyclic loading, and the failure mode does not appear in the period, the yaw decelerator is regarded as the success of the test; if the yaw reducer fails in the test period, recording loading cycle times, failure parts and failure modes when the yaw reducer fails, and analyzing operation data of the yaw reducer; if the yaw speed reducer is tested successfully, the test is resumed again until the yaw speed reducer fails, the loading cycle times, the failure parts and the failure modes at the moment are recorded after the yaw speed reducer fails, and the operation data of the yaw speed reducer is analyzed to perform service life verification.
2. The method of claim 1, wherein the sensor system comprises: a vibration sensor, an oil temperature sensor, a surface temperature sensor and a noise sensor, wherein, the vibration sensor and the surface temperature sensor are adsorbed on the shell of the measured sensor, and the oil temperature sensor is inserted into the oil tank of the measured sensor.
3. The method according to claim 1 or 2, further comprising: and the PLC is respectively connected with the rotating speed and torque sensor and the sensor system and is used for transmitting the measured data to a computer for recording and analyzing.
4. The method of claim 1, wherein the secondary planetary reducer is coupled to the yaw reducer under test using a transfer shaft.
5. The method of claim 1, wherein the test bench is provided with stationary teeth that mesh with an output gear of the yaw decelerator under test.
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| CN110567711A (en) * | 2019-08-27 | 2019-12-13 | 格特拉克（江西）传动系统有限公司 | gear pulse load type fatigue life test method and device |
| CN114323607A (en) * | 2021-12-17 | 2022-04-12 | 山东豪迈机械科技股份有限公司 | Overspeed test device and method for aluminum alloy closed impeller |
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