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2. 发明授权

US4500969A Method and apparatus for determining stress on hoisting equipment 失效
标题翻译：用于确定起重设备应力的方法和装置
公开(公告)号：US4500969A
公开(公告)日：1985-02-19
申请号：US331015
申请日：1981-12-15
申请人： Heinz Hasselmann , Anton Muenzebrock
发明人： Heinz Hasselmann , Anton Muenzebrock
IPC分类号： G01G19/18 , B65G1/00 , B65G1/04 , B66B5/00 , B66C15/00 , B66F9/24 , G01M99/00 , G07C3/00 , G01M17/00 , G08B21/00
CPC分类号： G01M99/00 , B66B5/0006 , B66B5/0025 , B66B5/0037 , G07C3/00
摘要： The disclosure is directed to a method and apparatus for determining the cumulative load stress on hoisting equipment. Generally, the apparatus according to the invention comprises a system of electronic components operable to measure and indicate the cumulative load stress handled by a particular hoisting installation. The apparatus includes a time signal generator, generating a series of constant time interval electrical signals, first electrical conductor means, selectively operable to conduct an electrical signal indicating operation of the hoisting equipment and a second electrical conductor means selectively operable to conduct an electrical signal corresponding to the value of the load being handled by the hoisting equipment. First and second circuit means are electrically associated with the time signal generator and first and second electrical conductor means. The circuit means are operated to calculate the cube of the value corresponding to the load during the time interval of each particular one of the series of constant time interval electrical signals generated by the time signal generator during the operation of the hoisting equipment. Electrical adding and storage means and electrical comparator means are electrically connected to the circuit means and are operable to determine the sum of all the cube values formulated by the circuit means and to compare the sum with a predetermined maximum value. The comparator means is arranged to actuate an indicator means when there is a predetermined relationship between the sum stored in the electrical adding and storage means and the predetermined maximum value.
摘要翻译：本公开涉及一种用于确定起重设备上的累积载荷应力的方法和装置。通常，根据本发明的装置包括可操作以测量和指示由特定起重设备处理的累积负载应力的电子部件的系统。该装置包括时间信号发生器，产生一系列恒定的时间间隔电信号，第一电导体装置，可选地可操作以传导指示起重设备的操作的电信号;以及第二电导体装置，其选择性地可操作地传导相应的电信号达到由起重设备处理的负载的值。第一和第二电路装置与时间信号发生器和第一和第二电导体装置电连接。操作电路装置以在起重设备的操作期间由时间信号发生器产生的一系列恒定时间间隔电信号的每个特定一个时间间隔期间计算对应于负载的值的立方。电加入和存储装置和电气比较器装置电连接到电路装置，并且可操作以确定由电路装置制定的所有立方体值的总和，并将总和与预定的最大值进行比较。比较器装置被布置成当存储在电加法和存储装置中的总和与预定最大值之间存在预定关系时致动指示器装置。

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