Hub unit tightening device

Abstract

The invention belongs to the field of automobile hub unit, and particularly discloses a hub unit tightening device, which comprises a servo motor, a rotating shaft system, a core stopper, a core stopper sleeve and an adjustment nut sleeve; the hub unit tightening device comprises a servo motor, a rotating shaft system, a core stopper sleeve and an adjustment nut sleeve. The servo motor is connected with the rotary shaft system and drives the rotary shaft system to rotate, one end of the rotary shaft system is fixedly connected with an adjustment nut sleeve, and the adjustment nut sleeve is provided with a protrusion corresponding to the notch of the adjustment nut; the rotating shaft system is sleeved on the outer wall of the stopper core, and one end of the stopper core close to the adjusting nut sleeve is fixedly connected with the stopper core sleeve, and the stopper core sleeve is provided with a protrusion corresponding to the notch of the tile sleeve. As that invention has the function of align and tightening the anti-loosening notch, the invention is simple in operation, high in reliability and high in tighten precision, can be integrated and used on the special equipment onthe wheel hub assembly production line, and solves the problems of inconvenient manual operation, low efficiency and the like.

Description

technical field [0001] The invention belongs to the field of automobile wheel hub units, and in particular relates to a wheel hub unit tightening device. Background technique [0002] In the field of automobile production, there are quite a few wheel hub structures such as attached image 3 shown. Wherein the adjusting nut has 4 or 6 notches, and the tile sleeve has 5 notches. The specific process requirement is to make the tapered roller bearing produce a certain preload by tightening the adjusting nut. At the same time, it is necessary to ensure that a certain notch on the adjusting nut is aligned with a certain notch on the bushing to facilitate the installation of the locking piece so as to achieve Anti-loosening effect. Since the bushing is free to rotate, so to make the tapered roller bearing produce a certain pretightening force by tightening the adjusting nut, the bushing must be fixed so that it cannot rotate, and then the adjusting nut can be tightened. To obse...

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