The invention discloses a tower crane slewing bearing positioning device which comprises a slewing assembly, the slewing assembly is composed of a slewing mechanism, an upper slewing bearing frame, a slewing bearing and a lower slewing bearing frame, the slewing mechanism is in meshed drive with the slewing bearing through an output pinion, the upper slewing bearing frame is provided with an upper slewing bearing frame flange face, and the lower slewing bearing frame is provided with a lower slewing bearing frame flange face. A first positioning hole is formed in the flange face of the upper rotary bearing frame, the lower rotary bearing frame is provided with a lower rotary bearing frame flange face, a second positioning hole is formed in the flange face of the lower rotary bearing frame, the rotary bearing is provided with a third positioning hole and a fourth positioning hole, and the first positioning hole and the third positioning hole are fixed through positioning reamed bolts. And the second positioning hole and the fourth positioning hole are fixed through a positioning reamed bolt. The positioning function can be completed by punching the positioning holes in the flange face and combining the positioning reamed bolts, the machining amount of parts can be reduced, precise positioning can be achieved, and the high-strength load use working condition of the slewing bearing is met.
本发明公开一种塔式起重机回转支承定位装置,包括回转总成,回转总成由回转机构、回转上支承架、回转支承和回转下支承架组成,回转机构通过输出小齿轮与回转支承啮合驱动,所述回转上支承架设置有回转上支承架法兰面,所述回转上支承架法兰面设置第一定位孔,所述回转下支承架设置有回转下支承架法兰面,所述回转下支承架法兰面设置第二定位孔,所述回转支承设置第三定位孔和第四定位孔,所述第一定位孔和第三定位孔通过定位铰制螺栓固定,所述第二定位孔和第四定位孔通过定位铰制螺栓固定。本发明通过通过在法兰面上打上定位孔,结合定位铰制螺栓就可以完成定位的功能,既可降低零部件的加工量,又能实现精准定位,满足回转支承高强度负载使用工况。
Slewing bearing positioning device of tower crane
一种塔式起重机回转支承定位装置
2025-01-07
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Reamed bolt hole positioning method of tower crane slewing bearing
European Patent Office | 2024
|