检索式起重机力矩限制器的控制目标不局限于若干条特定的幅度——起重量曲线,而是整个起重量曲面。因而可以做到在起重机臂架任何工作位置上既不降低其起吊能力,又确保其安全工作。检索式力矩限制器可以不用微机处理,便于在各类中小吨位轮式起重机上推广应用。文中简述了检索式力矩限制器的设计思想和电路工作原理。 The control target of the search crane torque limiter is not limited to a certain number of amplitudes - the lifting curve, but the entire lifting surface. It is thus possible to achieve neither the lifting capacity nor the safe operation of the crane boom at any working position. The retrieval torque limiter can be processed without the use of a computer, which is convenient for application to various types of small tonnage wheeled cranes. The design principle and circuit working principle of retrieval torque limiter are briefly described in this paper.