Worm assembly

The invention relates to the technical field of electric power steering, in particular to a worm assembly which comprises a worm, and a damping mechanism is arranged on the worm. The damping mechanism comprises a damping shell, and a damping pad is arranged in the damping shell. According to the worm assembly, the damping mechanism is arranged, so that the worm assembly has good axial buffering capacity, the damping mechanism further has good transverse limiting capacity, and noise generated by axial movement and movement movement of the worm assembly is avoided or reduced. 本发明涉及电动助力转向技术领域，具体来说是一种蜗杆总成，包括蜗杆，所述蜗杆上设有减震机构；所述减震机构包括减震壳，所述减震壳内设有减震垫；本发明公开了一种蜗杆总成，通过减震机构的设置，使得蜗杆总成具有很好的轴向缓冲能力，并且本发明减震机构还具有很好的横向限位能力，避免或者减少蜗杆总成轴向窜动以及运动窜动产生的噪音。