| 摘要 |
A pick assembly comprising a holder body 10, a strike body 20, a base body 50 attachable to a drive mechanism, and an interference assembly comprising at least one interference member 30. The holder body comprises a head portion 12 and a shaft 14 depending from the head portion. The strike body comprises a super-hard strike tip 22. The head portion and the strike body are cooperatively configured such that the strike body can be attached to the head portion, the strike tip being exposed for striking a body to be degraded when in use. The base body comprises a base bore. The base bore, shaft and interference assembly are cooperatively configured such that the shaft can be secured within the base bore, the interference member disposed between the shaft and the bore. Frictional interference between the shaft, interference assembly and base bore is sufficient to prevent rotation of the shaft within the base bore in use. |
