Novel fastener wrench

Abstract

The invention discloses a novel fastener wrench comprising a fastener connector used for connecting with a fastener, a universal coupling and a ball screw and nut pair portion. The fastener connector is connected with the ball screw and nut pair portion through the universal coupling, two ends of a ball screw are connected with a front connecting rod and a rear connecting rod respectively and coaxially, the ball screw is mounted in a screw guide sleeve, and two ends of the screw guide sleeve are respectively connected with a front bearing seat and a rear bearing seat. A front bearing is connected between the front connecting rod and the front bearing seat. A rear bearing is connected between the rear connecting rod and the rear bearing seat. A ball screw nut between the ball screw and the screw guide sleeve is connected with a handle fixedly, the handle extends out from a groove formed in the screw guide sleeve, and the groove in the screw guide sleeve extends along the axial direction of the ball screw. The novel fastener wrench mainly overcomes the defect that existing wrenches are inconvenient to operate in narrow and small spaces, and is small in needed space, convenient to use and high in utilization efficiency.

Description

technical field [0001] The invention clearly relates to a mechanical wrench, in particular to a novel fastener wrench. Background technique [0002] A wrench is a commonly used tool for installing and removing fasteners. In mechanical engineering, fasteners are widely used. With the progress of processing methods and the requirements for equipment rigidity, integrated design is widely used, and the shapes of parts are becoming more and more complex. The operating space of fasteners Smaller and smaller in some applications. [0003] A wrench in the traditional sense, that is, an ordinary wrench, is a hand tool that uses the principle of leverage to twist bolts, screws, nuts, and other threaded bolts or nuts. The wrench is usually formed with a clamping handle at one or both ends of the handle to apply an external force to the handle to twist the opening or sleeve of the bolt or nut. When in use, an external force is applied to the shank in the direction of thread rotation,...

AI Technical Summary

Problems solved by technology

The advantage in operation is that it is extremely efficient and can twist high-strength bolts; its main disadvantage is that due to its own size and the fact that the wrench should form a fixed angle with the fastener during work, it cannot be used or it is difficult to apply in places with small spaces.

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