Patent ID: 9234411
Filing Date: 2016-01-12
CPC Classification: E21B

Claim Text:
1. A tower frame combined transmitting pumping unit without guiding wheels, comprising a tower frame, a powering system, a transmitting system, a controlling system, a balancing weight box, a weight hauling cable, a rope wheel, a driving rope and rope hangers, wherein said powering system, said transmitting system, said controlling system and said rope wheel are installed on an operation platform on a top of said tower frame; said controlling system, connected to said powering system, is for controlling commutation positions and rotation speeds of said powering system; said powering system is transmittedly connected to said rope wheel through said transmitting system; wherein said rope wheel is fixed on a side of said operation platform through a rope wheel supporting device; a central axis line of said rope wheel is located within an edge of said operation platform; a minimum distance between said central axis line and said edge of said operation platform along a horizontal direction is counted as L; a wheel rim of said rope wheel extends beyond said operation platform; a minimum distance between a most external rim thereof and said tower frame along a horizontal direction is counted as M; said rope wheel has several fixing holes; an end of said weight hauling cable is fixed on a first group of said fixing holes and an end of said driving rope is fixed on a second group of said fixing holes; said weight hauling cable and said driving rope twine around said rope wheel reversely; a free end of said weight hauling cable is connected to said balancing weight box through a first rope hanger A and a hanging part of said weight hauling cable is located at a longitudinal center of said tower frame; a free end of said driving rope is connected to a suction rod through a second rope hanger B; and a platform moving device is provided between said operation platform and said top of said tower frame, wherein L is not smaller than 50 mm and M is not smaller than 700 mm; said platform moving device comprises sliding tracks formed by round pipes and sliding sleeves; said sliding tracks formed by round pipes are mounted on said top of said tower frame; said sliding sleeves are connected to a bottom of said operation platform through a connecting board at a top thereof; and the sliding sleeves are sleeved on said sliding tracks formed by round pipes and able to slide on said sliding tracks formed by round pipes.