A slewing bearing (200) comprising an outer ring (201), a middle ring (202), an inner ring (203), a plurality of rollers (204), a bottom ring (206), and a connecting pin (205). The outer ring (201), the middle ring (202) and the inner ring (203) are annular structures which are sequentially embedded. An outer rolling way is formed between the outer ring (201) and the middle ring (202), and an inner rolling way is formed between the middle ring (202) and the inner ring (203). The plurality of rollers (204) are placed in the outer rolling way and the inner rolling way, so that the middle ring (202) can rotate relative to the outer ring (201) and the inner ring (203). The bottom ring (206) is detachably fixed on the outer ring (201) and/or the inner ring (203) through the connecting pin (205). A mechanical device comprising the slewing bearing (200). The slewing bearing (200) and the mechanical device enables rapid and frequent disassembly and assembly of the slewing bearing (200) can be implemented through the connecting pin (205).

Slewing bearing and mechanical device

The embodiment of the utility model discloses a three-ring slewing bearing structure The slewing bearing structure comprises an outer ring (1), a center ring (2), an inner ring (3) and rollers (4), wherein the outer ring (1) is positioned on the outer side of the center ring (2); the inner ring (3) is positioned on the inner side of the center ring (2); the center ring (2) rotates relatively to the outer ring (1) and the inner ring (3) respectively through the rollers (4); and the center ring (2) adopts a combined structure and consists of an upper center ring (21) and a lower center ring (22) In the utility model, by virtue of a plurality of groups of rollers and a plurality of support rings, the dimensions of the rollers and the support rings are reduced, the slewing bearing structure is optimized, the bearing capacity of the slewing bearing structure is improved, the assembly and processing are easy, and the application is extensive

Munan Liu

Papers

Three-ring slewing bearing structure