Slotted nut structure and nut locking method adopting screw for jacking

Abstract

The invention discloses a slotted nut structure and a nut locking method adopting a screw for jacking. The nut structure comprises a slotted nut and a jacking screw, a locking groove is formed in the cylindrical surface of the slotted nut in the radial direction, and the slotted nut is divided into a nut body A and a nut body B by the locking groove. The nut body A is provided with a threaded hole A, a threaded hole B, a process unthreaded hole A and a process unthreaded hole B, wherein the threaded hole A and the threaded hole B which are used for jacking a screw, and the process unthreaded hole A and a process unthreaded hole B are used for gap-adjusting torsion of the slotted nut. The nut structure is arranged on a screw rod located on the central axis in a cylinder barrel, a polished rod section and a threaded section are arranged at the front end of the screw rod, a bearing A and a bearing B are arranged between the cylinder barrel and the polished rod section, and the nut structure is arranged at the position, close to the bearing B, of the threaded section. The nut structure is simple in structure and convenient to operate, the slotted nut can be repeatedly used, the bearing clearance can be readjusted when being changed, locking of the nut is guaranteed by adopting the jacking mode of the jacking screw, and the requirements for bearing clearance adjustment and nut locking under the special narrow working condition are met.

Description

Technical field [0001] Structure and slot nuts with screw connector of the present invention belongs to the technical field of fasteners, and relates to a structure using the slotted nut locking nut screw top pressure method, particularly to a bearing gap adjustment in a narrow space the method of the top locking nut pressure. Background technique [0002] Nut as a common mechanical connection with the use of bolt fasteners, which are widely used in various mechanical devices. Ordinary standard nuts and bolts under static load, since the thread helix angle is less than the equivalent of the coil sub-friction angle, threaded on the structure force can be self-locking, but under the influence of the continuous mechanical vibration, shock and other factors usually lead to friction between the screw pairs decreases or disappears and threaded connections loose spin-off phenomenon. Current common locknut has a locking method on the following five categories, the first category is a fri...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a slotted nut structure and a method of nut anti-loosening using screw top pressure. The slotted nut has a simple structure and is easy to operate. Re-adjust to ensure the dynamic balance of bearings and nuts, and solve the problem of bearing gap adjustment and nut anti-slip when using nut adjustment method for radial thrust bearings or tapered roller bearings installed face-to-face or back-to-back in a special narrow space. Loose Difficult Questions

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