The invention relates to the technical field of fastening devices, in particular to a self-locking fastening device for a railway overhead line system and an installation method thereof.The self-locking fastening device for the railway overhead line system comprises a bolt, a main nut and a lock catch nut, and the bolt is provided with a first thread and a second thread; the screw diameter and the screw pitch of the first thread are different from those of the second thread, the rotating direction of the first thread is opposite to that of the second thread, the main nut is matched with the first thread, the lock catch nut is matched with the second thread, and a straddle screw is installed in a seam between the lock catch nut and the bolt. The product is provided with the lock catch nut with the rotating direction opposite to that of the main nut, and the lock catch nut is a first structure for preventing the main nut from loosening; a perforation screw is arranged on the joint of the lock catch nut and the bolt, and is a second structure for preventing the main nut from loosening; the product is simple in structure, low in cost, reliable in locking, convenient to mount and dismount and wide in application range, all-weather operation can be realized, and the operation benefit of equipment is greatly improved.
本发明涉及紧固装置技术领域,具体是一种铁路接触网用自锁紧固装置及其安装方法,铁路接触网用自锁紧固装置包括螺栓、主螺母和锁扣螺母,所述螺栓上设置有第一螺纹和第二螺纹,第一螺纹的螺径和螺距与第二螺纹的螺径和螺距均不相同,第一螺纹的旋向与第二螺纹的旋向相反,主螺母与第一螺纹相配合,锁扣螺母与第二螺纹相配合,锁扣螺母与螺栓之间的接缝中安装有骑缝螺钉。本产品设置了与主螺母旋向相反的锁扣螺母,这是第一重阻止主螺母松动的结构;在锁扣螺母与螺栓的接缝上设置骑缝螺钉,是第二重阻止主螺母松动的结构;本产品结构简单,成本低廉,锁紧可靠,安装拆卸方便,适用范围广,能实现全天候作业,大大提高设备运营效益。
Self-locking fastening device for railway contact net and mounting method of self-locking fastening device
一种铁路接触网用自锁紧固装置及其安装方法
2024-08-16
Patent
Electronic Resource
Chinese
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 / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
Locking device for fastening rocker arm and mounting method
European Patent Office | 2023
|