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公开(公告)号：US11774324B2
公开(公告)日：2023-10-03
申请号：US17199535
申请日：2021-03-12
IPC分类号： G01M13/022 , F03D17/00 , G05B13/02
CPC分类号： G01M13/022 , F03D17/00 , G05B13/0265 , F05B2270/80
摘要： A method for detecting actual slip in a coupling of a rotary shaft, for example, in a wind turbine power system, includes monitoring, via a controller, a plurality of sensor signals relating to the coupling for faults. In response to detecting a fault in the plurality of sensor signals relating to the coupling, the method includes determining, via the controller, whether the fault is indicative of an actual slip or a no-slip event of the coupling using one or more classification parameters. When the fault is indicative of the actual slip, the method includes estimating, via the controller, a magnitude of the actual slip using the plurality of sensor signals and a time duration of the actual slip. Further, the method includes implementing, via the controller, a control action based on the magnitude of the actual slip in the coupling.
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公开(公告)号：US20220026308A1
公开(公告)日：2022-01-27
申请号：US17241516
申请日：2021-04-27
IPC分类号： G01M13/027 , G01M13/022
摘要： A first shaft segment and a second shaft segment are joined by a first fastener and a second fastener to form a shaft test assembly. The first shaft segment and the second shaft segment are each curved between first and second circumferential ends. A method of testing a shaft includes displacing a first applicator part relative a second applicator part to exert a load on the shaft test assembly. The resulting shear stress on the shaft test assembly can be measured to determine material properties of the shaft. A first applicator part extends at least partially into the shaft test assembly and interfaces with the first shaft segment to apply a load. A second applicator part extends at least partially into the shaft test assembly and interfaces with the second shaft segment to apply a load.
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公开(公告)号：US20220010871A1
公开(公告)日：2022-01-13
申请号：US17281812
申请日：2018-12-27
IPC分类号： F16H57/01 , G01M13/022
摘要： To detect the occurrence of slippage, a transmission health monitor integrates speed measurements for an engine shaft and a transmission shaft to determine a number of revolutions for each shaft. The monitor then uses a ratio of the revolutions adjusted for a transmission gear ratio to determine whether slippage has occurred. Based on the slippage, the monitor can determine a cumulative amount of wear on a clutch for each gear and track the rate of change of slippage over time to determine a rate at which wear is occurring. The monitor can also correlate slippage calculations with torque measurements to identify operating conditions at which slippage is occurring. The monitor uses the cumulative amount of slippage, the rate of change of slippage, and the operating conditions at which slippage is occurring to estimate a remaining lifespan for a clutch or indicate that a clutch should be repaired or replaced.
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公开(公告)号：US10378998B2
公开(公告)日：2019-08-13
申请号：US15602271
申请日：2017-05-23
IPC分类号： G01M13/02 , G01M13/022 , F16D13/75 , F16D13/58 , F16D13/70
摘要： A clutch for a motor vehicle with a wear compensation mechanism which includes a sensor element for detecting wear, wherein the sensor element is formed of a plurality of parts, and at least two sensor component parts are rotatably connected to one another.
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公开(公告)号：US12083664B2
公开(公告)日：2024-09-10
申请号：US17621920
申请日：2020-06-17
发明人： Christian Sattler , Marco Balter , Frank Fritsch
IPC分类号： B25F5/00 , B23B49/00 , B23Q17/09 , B23Q17/10 , G01M13/022
CPC分类号： B25F5/001 , B23B49/00 , B23Q17/0961 , B23Q17/10 , G01M13/022 , B23B2226/75 , B23B2260/07 , B23B2260/128 , B23B2270/486
摘要： A method for detecting whether a slip clutch release event has taken place in a power tool includes determining a first speed of a gear device by a first sensor, determining a second speed of a motor by a second sensor, and determining a current value by a third sensor. The method further includes determining a state of the power tool by using the first and second speeds and the current value, determining a state of the gear device in dependence on the current value by a control device, ascertaining a state of activity of the slip clutch in dependence on the first and second speeds by the control device, and ascertaining by the control device by a combination of the state of the gear device and the state of activity of the slip clutch whether the slip clutch release event has taken place.
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公开(公告)号：US12021466B2
公开(公告)日：2024-06-25
申请号：US17633774
申请日：2020-08-07
IPC分类号： H02P23/30 , G01H1/00 , G01H1/14 , G01H1/16 , G01M13/022 , G01M13/028 , H02P23/18
CPC分类号： H02P23/30 , G01H1/003 , G01H1/14 , G01H1/16 , G01M13/022 , G01M13/028 , H02P23/186
摘要： To provide a characteristic evaluation device that can properly evaluate a characteristic of a shaft coupling while considering a delay in a response of a motor, a characteristic evaluation device of a shaft coupling includes: a motor system including a drive motor, a rotation angle sensor configured to acquire a rotation angle of a drive shaft, and a motor control unit configured to control the drive motor based on a torque command; a rotational load connected to a driven shaft; and a processor configured to output the torque command and calculate a frequency response of a gain of an amplitude of an angular velocity ω of the rotation angle, wherein the processor is configured to calculate a characteristic of the shaft coupling based on a response characteristic of the motor system and the frequency response.
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公开(公告)号：US11946538B2
公开(公告)日：2024-04-02
申请号：US17281812
申请日：2018-12-27
IPC分类号： F16H57/01 , G01M13/022
CPC分类号： F16H57/01 , G01M13/022 , F16H2057/014
摘要： To detect the occurrence of slippage, a transmission health monitor integrates speed measurements for an engine shaft and a transmission shaft to determine a number of revolutions for each shaft. The monitor then uses a ratio of the revolutions adjusted for a transmission gear ratio to determine whether slippage has occurred. Based on the slippage, the monitor can determine a cumulative amount of wear on a clutch for each gear and track the rate of change of slippage over time to determine a rate at which wear is occurring. The monitor can also correlate slippage calculations with torque measurements to identify operating conditions at which slippage is occurring. The monitor uses the cumulative amount of slippage, the rate of change of slippage, and the operating conditions at which slippage is occurring to estimate a remaining lifespan for a clutch or indicate that a clutch should be repaired or replaced.
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公开(公告)号：US20220274244A1
公开(公告)日：2022-09-01
申请号：US17621920
申请日：2020-06-17
发明人： Christian SATTLER , Marco BALTER , Frank FRITSCH
IPC分类号： B25F5/00 , B23Q17/10 , B23Q17/09 , B23B49/00 , G01M13/022
摘要： A method for detecting whether a slip clutch release event has taken place in a power tool includes determining a first speed of a gear device by a first sensor, determining a second speed of a motor by a second sensor, and determining a current value by a third sensor. The method further includes determining a state of the power tool by using the first and second speeds and the current value, determining a state of the gear device in dependence on the current value by a control device, ascertaining a state of activity of the slip clutch in dependence on the first and second speeds by the control device, and ascertaining by the control device by a combination of the state of the gear device and the state of activity of the slip clutch whether the slip clutch release event has taken place.
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公开(公告)号：US11085851B2
公开(公告)日：2021-08-10
申请号：US16624213
申请日：2018-06-14
发明人： Takao Akiyama
IPC分类号： G01M13/02 , G01M13/022 , G01M13/021
摘要： The mechanical characteristic estimating method is a method for estimating a value of a mechanical characteristic parameter of a test piece W provided with a first shaft S1, and a second shaft S2 and a third shaft S3 which are connected to the first shaft S1. The mechanical characteristic estimating method includes: a first measuring step of measuring a resonant frequency ωL of the test piece in a state in which a gear ratio of the transmission TM1 and the differential gear TM2 is set to a first gear ratio gL; a second measuring step of measuring the resonant frequency ωH of the test piece in a state in which the gear ratio is set to a second gear ratio gH; and an estimating step of calculating the resonant frequencies ωL and ωH, the gear ratios gL and gH, and an estimated value of a spring stiffness.
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公开(公告)号：US10935001B2
公开(公告)日：2021-03-02
申请号：US15801436
申请日：2017-11-02
发明人： Raed Zuhair Hasan , Farong Zhu , Lawrence Keith Taliaferro, Jr. , Priyangu Chunilal Patel , James Edward Cencula , Edward Lee McGrath
IPC分类号： F03D17/00 , F03D7/04 , F03D15/00 , F03D7/02 , G01M13/021 , G01M13/022 , H02P9/04
摘要： The present disclosure is directed to a system for monitoring wear on a gearbox of a wind turbine. A controller of the system is configured to determine a torque exerted on a rotor shaft of the wind turbine or a generator shaft of the wind turbine based on measurement signals received from a first sensor of the system. The controller is also configured to determine an accumulated wear value for the gearbox based on the torque.
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