Rotary driving device with in-built raceways

Abstract

The invention discloses a rotary driving device with in-built raceways. A worm is arranged in a worm chamber formed in a base. A gear block is mounted in the base and further arranged upon the worm chamber. The worm is meshed with the gear block. Tapered roller bearings are arranged between two ends of the worm and the base. End covers are arranged at two ends of the bottom of the base and used for closing parts in the worm chamber. A top plate is arranged upon the base. The inner raceway is formed on an inner circular face of the base, and the outer raceway is formed on an outer circular face of the top plate. The raceways and the gear block are concentric. By the use of the rotary driving device, material cost, manual cost and mechanical processing cost are lowered, capsizing moment and holding torque are better, service life is prolonged, and better market prospect is achieved.

Description

technical field [0001] The invention belongs to the technical field of rotary drive equipment, and in particular relates to a built-in raceway rotary drive device. [0002] The invention relates to a built-in raceway rotary drive device. It is widely used in various transmission mechanisms, especially the transmission mechanisms in the fields of truck-mounted cranes, aerial work vehicles, solar trackers, etc., especially in occasions with high precision requirements. Background technique [0003] The slewing device is the core component of large-scale loading and unloading machinery and some large-scale equipment. Its structure generally mainly includes precision casting base, slewing bearing, worm, top plate, end cover, motor adjusting block, bearing, oil cup, bolt and sealing strip. . The slewing bearing is usually fixed on the base with bolts. When installing the bolts, pay attention to the diagonal method of installing the bolts. The pre-tightening force of the bolt s...

AI Technical Summary

Problems solved by technology

Due to the closed structure of the slewing bearing, for example, for the maintenance of the slewing bearing on the fan, the internal condition of the slewing bearing can only be checked by lifting the upper structure of several hundred tons to a certain height, which leads to long construction period, high risk and high cost. , and there are uncertain factors, it is easy to cause waste

If the above problems cannot be solved, the stability of the slewing device cannot be ensured, and the material cost, labor cost, and machining cost of the slewing drive device cannot be properly reduced, and at the same time, better overturning moment, holding moment and service life can be obtained.

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