HOISTING PLATFORM WITH ROTARY BASE FOR MOBILE DRILLING MACHINE Russian patent published in 2005 - IPC

FIELD: well drilling equipment, particularly supports for the drilling machines.

SUBSTANCE: platform for hoisting mechanism installation during offshoot kickoff has base, horizontal panel and control means. The platform is made of two collapsible modular sections connected one to another. One section adjoins rotary base. Each section comprises base and horizontal hoisting panel. Two rotary frames with vertical plate lifting mechanisms are installed between the base and the horizontal hoisting panel. Lower frame sides are pivotally secured to base edges. Upper sides thereof are pivotally connected with their own carts having rollers fixedly secured to cart edges. Rollers are adapted to perform longitudinal movement along guiding means of above plate. Bracket with running pair including nut and screw is arranged in center of each cart. Lead screw of running pair is connected with engine through system including cardan shafts and reducers. Carts of each section move in mutual opposite directions relative each other. Each frame goes up through angle slightly increasing 90º, namely through 95º-100º. Base of the section is provided with post rigidly fastened with rotary base from side adjoining it. Vertical guiders for moving vertical cart installed at horizontal hoisting panel end are formed in above post and are arranged from side facing modular sections.

EFFECT: possibility of platform disassembling and transportation by trawlers, truck platforms and semitrailers, increased speed of platform assembling and increased reliability thereof.

6 dwg