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我厂从国外引进了SE_1-500型500吨压力机,由于该机是拆散装运的,需进行重新组装,要锁紧连接螺柱也是个大问题。经过讨论,我们采用了液压紧固法。这种方法简单可行,效果也很好。该曲柄压力机的上横梁重约25吨,两个立柱各重4.46吨,机座重14.7吨,四大部件用四只φ160×6×7125的双头螺柱(每只重约1吨)来紧固。压力机结构如左图所示。我们将每只螺柱下部的紧固螺母设计成液压螺母,其结构及安装情况如右图所示。锁紧方法具体介绍如下:
Our factory imported the SE_1-500 type 500 ton press from abroad. Since the machine is disassembled and shipped, it needs to be reassembled. It is also a big problem to lock the connecting studs. After discussion, we adopted the hydraulic fastening method. This method is simple and effective, the effect is also very good. The crank press weighs about 25 tons on the beam, two columns each weighing 4.46 tons, seat weight 14.7 tons, the four components with four φ160 × 6 × 7125 studs (each weighing about 1 ton) To fasten. The structure of the press is shown on the left. We design the fastening nut on the lower part of each stud as a hydraulic nut. The structure and installation are shown on the right. Locking method described in detail as follows: