A thread connection self-locking structure is used for installing a step roller of an escalator on a step and comprises the step, a thread connection assembly, a thread connection assembly and a thread connection assembly, and the step is provided with an installation shaft, and the step roller is installed on the installation shaft through a roller bearing; the threaded connection structure comprises a bolt, a gasket and a nut, the mounting shaft is provided with a through hole in the axial lead direction of the mounting shaft, the bolt penetrates through the gasket, the through hole and the nut, and the inner ring of the roller bearing is tightly pressed on the mounting shaft by the gasket through screwing joint between the bolt and the nut; wherein a countersunk slotted hole for placing a nut is formed at the tail end of the through hole, so that a bolt can penetrate through the nut positioned in the countersunk slotted hole, and the side wall of the countersunk slotted hole comprises a bottom surface and two side surfaces which are symmetrical to each other, so that a U-shaped structure with three closed side walls and one open side wall is formed; and when the nut is located in the U-shaped structure and is positioned by the bottom surface and the two side surfaces, the hole of the nut is just aligned with the through hole. According to the self-locking structure, the assembling efficiency is improved, and threaded connection can be prevented from loosening.
一种螺纹连接的自锁结构,用于将自动扶梯的梯级滚轮安装在梯级上,包括:梯级,其具有安装轴,梯级滚轮通过滚子轴承安装在安装轴上;螺纹连接结构,螺纹连接结构包含有螺栓、垫圈和螺母,其中安装轴具有沿着其轴心线方向的通孔,螺栓穿过垫圈、通孔和螺母,通过螺栓和螺母之间的拧紧接合,垫圈将滚子轴承的内圈压紧在安装轴上,其中在通孔的末端形成有用于安置螺母的埋头槽孔,使得螺栓能够穿过位于埋头槽孔中的螺母,埋头槽孔的侧壁包括底面和彼此对称的两个侧面,由此形成侧壁三面封闭而一面开口的U形结构,当螺母落位于U形结构中并被底面和两个侧面定位时,螺母的孔正好对准通孔。上述自锁结构提高了装配效率,并能够防止螺纹连接松动。
Threaded connection self-locking structure
螺纹连接的自锁结构
2023-09-22
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS / 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 |
European Patent Office | 2020
|Threaded Fastener Protrusion Through Self-Locking Nuts
SAE Technical Papers | 2012
Threaded Fastener Protrusion Through Self-Locking Nuts
SAE Technical Papers | 2018