US 12,252,942 B2
Rolling and sliding adaptive device for guiding and fixing drill pipe
Zetian Zhang, Chengdu (CN); Heping Xie, Chengdu (CN); Ru Zhang, Chengdu (CN); Ling Chen, Chengdu (CN); Yihang Li, Chengdu (CN); Heng Gao, Chengdu (CN); Jianan Li, Chengdu (CN); Wei Huang, Chengdu (CN); Li Ren, Chengdu (CN); Kun Xiao, Chengdu (CN); Weiqiang Ling, Chengdu (CN); and Chendi Lou, Chengdu (CN)
Assigned to SICHUAN UNIVERSITY, Chengdu (CN)
Appl. No. 18/035,762
Filed by SICHUAN UNIVERSITY, Chengdu (CN)
PCT Filed Sep. 23, 2022, PCT No. PCT/CN2022/120716
§ 371(c)(1), (2) Date May 8, 2023,
PCT Pub. No. WO2023/142500, PCT Pub. Date Aug. 3, 2023.
Claims priority of application No. 202210091903.X (CN), filed on Jan. 26, 2022.
Prior Publication US 2024/0344410 A1, Oct. 17, 2024
Int. Cl. E21B 19/24 (2006.01)
CPC E21B 19/24 (2013.01) 9 Claims
OG exemplary drawing
 
1. A rolling and sliding adaptive device for guiding and fixing a drill pipe, comprising a mounting platform,
wherein the mounting platform is provided with a through hole for the drill pipe to pass through;
a plurality of rolling and sliding support mechanisms are arranged around the through hole;
the plurality of rolling and sliding support mechanisms each comprise a support seat;
the support seat is provided with a contact element, wherein the contact element is telescopic and swingable on the support seat;
a telescopic drive mechanism is provided between the contact element and the support seat; and
the contact elements on the plurality of rolling and sliding support mechanisms form a funnel-shaped structure with a large upper part and a small lower part around the through hole, wherein
the contact element comprises two parallel mounting plates, and the two parallel mounting plates are vertically arranged;
a plurality of rolling shafts are evenly arranged between the two parallel mounting plates;
the plurality of rolling shafts are vertically arranged, and two ends of each of the plurality of rolling shafts are rotationally arranged between the two parallel mounting plates;
the two parallel mounting plates are arranged on the telescopic drive mechanism;
the telescopic drive mechanism is movably provided on a mounting bracket provided at an upper end of the support seat;
the telescopic drive mechanism comprises an upper drive mechanism and a lower drive mechanism;
the upper drive mechanism comprises an upper guide-rod fixing plate, wherein the upper guide-rod fixing plate is hinged to upper ends of the two parallel mounting plates;
the upper guide-rod fixing plate is provided with a movement drive mechanism for driving the upper guide-rod fixing plate to move toward the drill pipe;
the lower drive mechanism comprises a lower guide-rod fixing plate, wherein the lower guide-rod fixing plate is hinged to lower ends of the two parallel mounting plates;
the lower guide-rod fixing plate is provided with a movement drive mechanism for driving the lower guide-rod fixing plate to move towards the drill pipe; and
the movement drive mechanisms are provided on the mounting bracket.