一种改进型非开挖钻机回拉助力装置

An improved back pulling auxiliary device for trenchless drilling rig

助力装置是非开挖钻机上选配的辅助装置中非常重要的装置,有时直接决定着非开挖工程的成败。分析现有的主流马达助力装置的不足,设计了一种油缸助力装置。利用双自由度机构,实现在助力时齿形部件自动先啮合钻架齿条再达到油缸助力的目的,远程就能实现助力装置自动切换状态,减少人工,缩减成本。

The auxiliary back pulling device is a very important one among the optional auxiliary devices on the trenchless drilling rig,which directly determines the success of the trenchless project sometimes.Based on the analysis of the current mainstream motor-assisted device,a hydro-cylinder assisted device was designed.A two-degree-of-freedom mechanism is used to allow the tooth-shaped part automatically to engage the rack of the drill mast first and then the cylinder to provide assistance.Automatic switching can be realized remotely;thus reducing labor and costs.