公开(公告)号：US20180354757A1

公开(公告)日：2018-12-13

申请号：US15778737

申请日：2016-11-23

Applicant: KONECRANES GLOBAL CORPORATION

Inventor： Aapo JANTUNEN ,  Janne SALOMÄKI

IPC: B66C13/23 ,  B66C15/02 ,  B66D1/14 ,  F16D66/02

CPC classification number: B66C13/23 ,  B60T17/22 ,  B66C13/16 ,  B66C15/00 ,  B66C15/02 ,  B66D1/14 ,  F16D66/024 ,  F16D66/027 ,  F16D2066/003

Abstract: A brake is operationally coupled by gear engagement to an axle of a device, whereby turning on the brake prevents the axle from rotating. Monitoring condition of the brake includes driving the axle of the device in a first rotation direction when the brake has been turned on. The axle of the device is driven in a second rotation direction when the brake has been turned on. A first position angle of the axle of the device, which follows from driving the axle of the device in the first rotation direction, is measured. A second position angle of the axle of the device, which follows from driving the axle of the device in the second rotation direction, is measured. A clearance of the gear engagement of the brake is determined on the basis of a difference of the first and the second position angles.

公开(公告)号：US20160091394A1

公开(公告)日：2016-03-31

申请号：US14892916

申请日：2014-05-21

Applicant: KONECRANES GLOBAL CORPORATION

Inventor： Heikki MESIÄ ,  Juhani KEROVUORI ,  Ilkka HARRA ,  Aapo JANTUNEN ,  Janne SALOMÄKI

IPC: G01M13/02 ,  G01P3/44

CPC classification number: G01M13/021 ,  G01H1/006 ,  G01P3/44 ,  H02P29/032

Abstract: Method/apparatus for performing the following acts on a system that includes an electrical motor followed by a gear, and a speed output unit: monitoring a first set of frequencies from the system over a measurement period when the system is in a known good operating condition; storing the first set of monitored frequencies or derivatives thereof as reference data in a long-term storage system; monitoring a second set of frequencies from the system over a measurement period when the system is in an unknown operating condition; comparing the second set of monitored frequencies with the first set of monitored frequencies in a frequency domain; in the frequency domain, detecting changes between corresponding frequencies resulting from the second set of monitored frequencies and the first set of monitored frequencies.

Abstract translation: 用于对包括电动马达和齿轮的系统执行以下动作的方法/装置以及速度输出单元：当系统处于已知的良好运行状态时，在测量周期内监视来自系统的第一组频率 ; 将第一组监视频率或其派生作为参考数据存储在长期存储系统中; 当系统处于未知的操作状态时，在测量周期内监视来自系统的第二组频率; 将第二组监测频率与频域中的第一组监测频率进行比较; 在频域中，检测由第二组监视频率和第一组监视频率产生的相应频率之间的变化。