Composite carbon fiber oil cylinder

The invention provides a composite carbon fiber oil cylinder, belongs to the technical field of hydraulic cylinders, and aims to provide a carbon fiber oil cylinder which meets the design requirement on inner bore precision, geometric tolerance and degree of finish of a cylinder barrel and works stably under high pressure. According to the technical scheme, the cylinder barrel is formed by winding composite carbon fibers and nano materials; threads which are formed by winding composite carbon fibers and nano materials are respectively arranged at two ends of a cylinder cover; threads are also machined at connecting ends of a cylinder bottom, the cylinder cover and the cylinder barrel; a piston rod of a piston rod assembly is a hollow tube; an oil cylinder reverse cavity inlet is formed in the piston rod; and an oil cylinder forward cavity inlet is formed in the cylinder bottom. The invention is applied to the carbon fiber oil cylinder. 复合碳纤维油缸，属于液压油缸技术领域，所要解决的技术问题是提供种缸筒内孔精度、形位公差及光洁度符合设计要求并且在高压状态工作稳定的碳纤维油缸，所采用