METHOD OF ADJUSTING SAFEGUARD OF LOAD-LIFTING CRANE AND SAFEGUARD USED IN CRANE

摘要

FIELD: materials handling facilities; crane safeguards. ^ SUBSTANCE: invention relates to overload and damage protection of load-lifting cranes and cranes-pipelayers. Proposed method comes to adjusting at least one signal in at least one load measuring channels and/or reach, and/or luffing angle to provide correspondence of safeguard switch off characteristic to preset load characteristic of crane by adding and/or multiplying results of direct or indirect measurement of at least one of crane operating parameters and signals corresponding to adjustment parameters whose values are stored in non-volatile memory of safeguard. Values of adjustment parameters are determined to provide independent switching off characteristic of safeguard from direction and/or speed of boom movement or speed of movement of crane load gripping members. Different adjustment parameters for different directions and/or speeds of boom and/or load-gripping member can be set. ^ EFFECT: simplified mounting and servicing of safeguards on crane, improved accuracy of realization of protection functions. ^ 18 cl, 2 dwg