High-strength cylinder cover bolt for marine diesel engine

The invention discloses a high-strength cylinder cover bolt for a marine diesel engine. The high-strength cylinder cover bolt comprises a bolt body, wherein the bolt body comprises a nut and a screw,a plurality of grooves are formed in the nut, each groove comprises an adjusting groove and a sliding groove, a stress adjusting mechanism is arranged in each groove, each stress adjusting mechanism comprises a spring supporting plate, a yielding mechanism is connected to the upper portion of each spring supporting plate and can move up and down in the corresponding adjusting groove. The acting force borne by the cylinder cover bolt is adjusted and released through the stress adjusting mechanisms, and cracks and deformation of a cylinder cover are prevented; the yielding mechanisms are arranged to further release the acting force borne by the cylinder cover bolt. and reinforcing ribs are arranged to improve the bolt strength and further prevent bolt deformation. 本发明公开了一种船舶柴油机用高强度汽缸盖螺栓，包括螺栓本体，所述螺栓本体包括螺帽和螺杆，所述螺帽上设有若