Horizontal combination method for front supporting rods of K-shaped derrick space structure of petroleum drilling machine

The invention discloses a petroleum drilling machine K-shaped derrick space structure front supporting rod horizontal type combination method, which utilizes a hardware structure and comprises the following steps: 1) performing lateral projection on a working platform to put a ground sample, ensuring that the position lines of a bent plate a and a bent plate b are parallel to each other, and ensuring that the lower section of a derrick is perpendicular to the position lines of the bent plate a and the bent plate b along the central line of a wellhead; then the bent plate a and the bent plate b are aligned and fixed on the working platform; (2) adjusting the center line of a derrick lower-section wellhead to coincide with the center line of a ground sample wellhead, and aligning the center line of a derrick lower-section frame body to be horizontal; and (3) measuring the height difference value between the derrick lower section supporting leg and the front supporting rod lower lug to meet the requirement of a