The invention belongs to the technical field of railway wagon bearings, and particularly relates to a bearing front cover bolt anti-loosening structure which comprises an anti-loosening piece of a triangular structure, bolt anti-loosening holes are formed in the three vertex angles of the anti-loosening piece, the outer edges of the three vertex angles of the anti-loosening piece extend outwards to form outwards-protruding circular arcs, and when bolts are assembled into the bolt anti-loosening holes, the bolts are clamped into the bolt anti-loosening holes. The outwards-protruding arc is bent inwards to form a bevel face, and the bevel face is matched with the bolt to prevent looseness. The anti-loosening structure can effectively prevent the fixing bolt at the axle end from loosening, facilitates axle fixation during axle maintenance, and is simple in structure and convenient to operate.
本发明属于铁路用货车轴承技术领域,具体涉及一种轴承前盖螺栓防松结构,包括三角形结构的防松片,所述防松片的三个顶角处设置有螺栓防松孔,防松片的三个顶角处的外部边缘向外侧延伸形成外凸圆弧,螺栓装配至螺栓防松孔内时,外凸圆弧向内弯折形成折角面,折角面与螺栓配合防松。本发明的防松结构可以有效防止轴端的固定螺栓松动,便于车轴维修时车轴的固定,结构简单,操作方便。
Bolt anti-loose structure of bearing front cover
轴承前盖螺栓防松结构
24.02.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16C SHAFTS , Wellen |