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针对能主副钩交替复合吊重的履带起重机,提出一种力矩限制器安全保护控制策略,将主副钩交替复合吊重状态转化为在固定副臂中点采用虚拟钩吊重状态,保证双钩安全作业。介绍安全保护控制策略的基本方案、控制原理、实现方法及其工程应用实例。实际应用表明,该力矩限制器安全保护控制策略能够以简单经济的方案为履带起重机提供实用有效的安全保护。
Aiming at the crawler crane with alternating main and auxiliary hooks, a kind of torque limiter safety protection control strategy is proposed, which transforms the main and auxiliary hooks alternately composite suspension state into the virtual hook lifting state in the middle of the fixed auxiliary jib to ensure the double hook Safe operation Introduce the basic plan of safety protection control strategy, control principle, realization method and its engineering application example. The practical application shows that the torque limiter safety protection control strategy can provide practical and effective safety protection for crawler cranes in a simple and economical way.