US 11,753,696 B2
Method for controlling deformation of a large-scale crankshaft
Chunguang Xu, Beijing (CN); Yuren Lu, Beijing (CN); Peng Yin, Beijing (CN); Peilu Li, Beijing (CN); Dezhi Li, Beijing (CN); Shuangyi Li, Beijing (CN); Wenyuan Song, Beijing (CN); and Zhaowei Miao, Beijing (CN)
Assigned to BEIJING INSTITUTE OF TECHNOLOGY, Beijing (CN)
Filed by BEIJING INSTITUTE OF TECHNOLOGY, Beijing (CN)
Filed on Jun. 30, 2021, as Appl. No. 17/363,579.
Claims priority of application No. 202010974909.2 (CN), filed on Sep. 16, 2020.
Prior Publication US 2022/0081736 A1, Mar. 17, 2022
Int. Cl. C21D 11/00 (2006.01); C21D 9/30 (2006.01); C21D 10/00 (2006.01)
CPC C21D 11/00 (2013.01) [C21D 9/30 (2013.01); C21D 10/00 (2013.01); F16C 2210/00 (2013.01); F16C 2223/10 (2013.01); F16C 2223/30 (2013.01); F16C 2360/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for controlling deformation of a crankshaft, comprising:
a step S1 of detecting and recording stress value(s) of part(s) to be regulated by the crankshaft;
a step S2 of placing the crankshaft on mounting plates of a crankshaft holder and causing the crankshaft to be limited by pressing plates of the crankshaft holder so as to ensure that the crankshaft is aligned with an axis of the crankshaft every time the crankshaft is placed; placing exciter brackets on shaft sections of the crankshaft; selecting horns corresponding to a curvature of the crankshaft, mounting the horns to heads of exciters, and coating a coupling medium on the crankshaft and transmitting ends of the horns; sleeving mounting rings of the exciter brackets on position(s) to be regulated of the crankshaft; and providing acoustic beam transducers each of which is placed on a middle one of three segments of one of the mounting rings and faces a center of the respective mounting ring;
a step S3 of turning on the acoustic beam transducers to emit acoustic beams into the crankshaft, and controlling working frequencies of the acoustic beam transducers within a range of 10-30 kHz; and
a step S4 of closing the acoustic beam transducers when a control time is reached, and taking the crankshaft out of the tool, wherein the control time increases as the stress value(s) of the part(s) to be regulated increases.