Bionic breaking hammer drill rod

• Main Authors: MA YUNHAI, WANG HUBIAO, LIU JUE, WANG HUIXIN, FAN XUEYING, ZHUANG JIAN, XIAO YANG, ZHANG XINXIN, TONG JIN, PEI GAOYUAN
• Format: Patent
• Language: English
• Published: 03.02.2016
• Subjects: CRUSHING, PULVERISING, OR DISINTEGRATING; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN; PERFORMING OPERATIONS; PREPARATORY TREATMENT OF GRAIN FOR MILLING; TRANSPORTING

The invention provides a bionic breaking hammer drill rod and belongs to the technical field of breaking hammer accessories. A drill bit, a transition body, a cylinder and a drill tail are sequentially arranged and integrated from bottom to top. Six bionic wedge-shaped bodies of the same structure are divided into two layers to be evenly distributed on the cylindrical face of the cylinder, the two layers of bionic wedge-shaped bodies are staggered by 60 degrees, and the connection line of the circumference of the circle of the lower end of the transition body and the circumference of the circle of the upper end of the transition body is a bionic curve A. The bionic curve A satisfies the equation of y=m lg x. The upper ends of the bionic wedge-shaped bodies are in shapes of isosceles triangles. The middle lines of the surfaces of the bionic wedge-shaped bodies are bionic curves D of the upper surfaces of teeth of a badger and the bottom edges are bionic curves C and curves E of the side surfaces of the teeth of the badger. The curves C and the curves E are symmetric with respect to the x axis. Every three curves are smoothly connected into an entity. The curved surfaces formed by the two arc ends and the lowest points of the bionic wedge-shaped bodies coincide with the cylindrical face of the cylinder. According to the bionic breaking hammer drill rod, as the bionic wedge-shaped bodies are additionally arranged on the surface of the breaking hammer drill rod, resistance can be reduced, the breaking capacity is enhanced, and the working efficiency is improved.