Wheel hub gas tightness detection device

The utility model provides a wheel hub gas tightness detection device, including frame, drive unit, sealing unit, inflatable unit and pressure detection unit, wherein drive unit is fixed in the top offrame, sealing unit includes the last shrouding and lower shrouding that is used for the upper and lower terminal surface of difference shutoff wheel hub, and it can reciprocate under drive unit's drive to go up the shrouding, upward is equipped with on the shrouding and aerifys the hole, aerify to wheel hub's inner chamber in the hole of aerifing of shrouding on the inflatable unit accessible, the pressure detection unit is used for detecting and showing the pressure value of wheel hub inner chamber. The utility model discloses a detection device passes through last shrouding and two end face seal s of lower shrouding with wheel hub, and rethread inflatable unit aerifys to wheel hub's inner chamber by aerifing the hole to by pressure detection unit detection variation in pressure, thereby judge whether wheel hub