The invention relates to the field of machine technology, discloses a star wheel device, and a star wheel comprises a star wheel outside of the outer end of a spider claw, the claw wheel outer wear layer, the wear resistant layer and the outer wheel claws are connected by bolts, clamping structure is formed between the wear-resistant layer and the the star wheel outer claw. The star wheel device of this structure, a clamping structure is formed between the outer layer and the wear wheel claw in the star wheel device in the working process, under the action of centrifugal force, shearing force generated between the wear-resistant layer and its outer claw will function between the wear-resistant layer and its outer claw clamping structure, so that the screw can be small shear force, can prevent the bolt was cut, can prolong the service life of the bolt, and can be firmly connected with the star wheel wear layer outer claw, prevent wear layer loss, can effectively protect the outer wheel claw. The invention also discloses a boring machine with the star wheel device.
【技术实现步骤摘要】
【技术保护点】
１．一种星轮装置，包括星轮及设于星轮外侧的星轮外爪，所述星轮外爪的端部设于耐磨层，所述耐磨层与所述星轮外爪通过螺栓连接，其特征在于，所述耐磨层与所述星轮外爪之间形成卡接结构。
【技术特征摘要】
【专利技术属性】
技术研发人员：王海龙，杨国栋，高承兴，
申请(专利权)人：三一重型装备有限公司，
类型：发明
国别省市：89
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