An anti-sinking smelting and drawing casting screw rod

Abstract

The invention discloses an anti-descending smelted pull-cast screw rod and belongs to the field of mechanical equipment. The anti-descending smelted pull-cast screw rod comprises a main transmission shaft, a driving bevel gear, a rotating mechanism, a concrete platform, a screw rod nut and a base, wherein the rotating mechanism comprises a pull-cast screw rod, a screw rod base, a driven bevel gear, an opening and closing clamping ring, a positioning sleeve, a centering bearing and a planar bearing; the pull-cast screw rod penetrates through the screw rod base, the opening and closing clamping ring, the centering bearing and the planar bearing; the tail end of the pull-cast screw rod is rotationally connected with the base through a loading bearing; the positioning sleeve is fixed at the outer diameter of the opening and closing clamping ring; the screw rod base is fixed on the opening and closing clamping ring; the bearing sleeve is fixed on the concrete platform; the pull-cast screw rod is in threaded connection with the screw rod nut between the concrete platform and the base. By adopting the anti-descending smelted pull-cast screw rod, the relative stress of the pull-cast screw rod, the loading bearing and the screw rod nut can be reduced, the abrasion of the loading bearing and the inner threads of the screw rod nut is alleviated, and the phenomenon that components such as the bevel gear are damaged as a screw rod of a pull-casting mechanism severely and frequently descends when being used for a long time as the threads are heavily abraded, is avoided.

Description

technical field [0001] The invention belongs to the field of mechanical equipment, and more specifically relates to a sinking-proof smelting and drawing casting screw rod. Background technique [0002] At present, after long-term use of the lead screw of the drawing casting mechanism, the force is mainly concentrated on the bearing and the screw nut, which easily leads to serious wear and tear of the thread and frequent sinking, resulting in misalignment and damage to the bevel gear and other components, resulting in the screw not working normally. And its maintenance difficulty is big, and maintenance time is long, and frequency is high, causes serious trouble to production, not only reduces production efficiency, also increases production cost greatly, increases the labor load of worker, delays the smooth operation of production line. Contents of the invention [0003] 1. Problems to be solved [0004] Aiming at the above-mentioned problems existing in the prior art, th...

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Problems solved by technology

[0002] At present, after long-term use of the lead screw of the drawing casting mechanism, the force is mainly concentrated on the bearing and the screw nut, which easily leads to serious wear and tear of the thread and frequent sinking, resulting in misalignment and damage to the bevel gear and other components, resulting in the screw not working normally. Moreover, its maintenance is difficult, the maintenance time is long, and the frequency is high, causing serious troubles to production, not only reducing production efficiency, but also greatly increasing production costs, increasing the workload of workers, and delaying the smooth operation of the production line

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