Novel axle head nut

Abstract

The invention discloses a novel axle head nut which comprises a threaded connector and a locking flange, wherein the threaded connector is in threaded fit with an axle, and the locking flange and the threaded connector are integrally formed. An inner cavity capable of containing the axle is formed between the threaded connector and the locking flange, and a key connected with a hub of the axle is circumferentially arranged around the axis of the locking flange and on the back surface of the locking flange. The novel axle head nut is characterized in that a plurality of splines arranged along the axis direction of the threaded connector are circumferentially arranged on the inner wall of the threaded connector around the axis of the threaded connector in the inner cavity of the threaded connector, a fine-adjustment function for pre-tightening force of the axle head nut is achieved, a bearing is protected, the service life of the bearing is prolonged, so that the service life of the whole axle is prolonged, the strength of an axle body and the axle head nut cannot be affected while the fine-adjustment function is achieved, driving safety is ensured, a spline structure is formed once by forging and extruding, and the strength of the splines is ensured.

Description

technical field [0001] The patent of the present invention relates to the field of automobiles, in particular to a novel axle nut. Background technique [0002] At present, most of the locking and locking methods of domestic axle head nuts are locked by locking plates, which have a large adjustment range and are prone to over-tightening or over-loosening, which will seriously affect the life of the bearing; [0003] CN 202579587 U discloses a shaft head locking device for an axle, which includes a first nut (1) and a second nut (2). One end of the screw hole of the first nut (1) is provided with a radial An open conical lock tongue, one end of the second nut (2) is provided with a conical extrusion part corresponding to the shape of the lock tongue of the first nut (1) along the outer circumference. Using the shaft head locking device for axles of the present invention, the two nuts squeeze each other during installation, so that their threads are slightly deformed, and at ...

AI Technical Summary

Problems solved by technology

[0007] Although the above nut locking scheme can achieve a certain degree of locking effect, the nut of the shaft nut cannot realize the fine adjustment of the pre-tightening force, and it is impossible to adjust the depth of the shaft nut screwed into the axle according to the size of the specific bearing and the installation requirements. That is, the clearance of the bearing cannot be adjusted, or the force of pressing the bearing cannot be controlled, that is, the pressure on the bearing cannot be controlled, so that the bearing and the axle cannot be effectively protected, and the locking effect of the axle nut itself is poor

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