Crankshaft assembly and air compressor

• Main Authors: SUN BINGTAO, YAO JUN, CHEN WENJIN, LI SUNA, WANG BU, YANG WEIQIANG, SEO KYUNG-AE
• Format: Patent
• Language: Chinese; English
• Published: 04.06.2024
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model provides a crankshaft assembly and an air compressor. The crankshaft assembly comprises a crankshaft, a primary crank arm and a secondary crank arm, the crankshaft comprises a combination seat, a first shaft body and a second shaft body, the first shaft body and the second shaft body reversely extend on the two sides of the combination seat respectively, the first shaft body is provided with a first shaft neck suitable for being connected with a first-stage piston connecting rod, a first shaft head is formed at the extending end of the first shaft body, and the second shaft body is provided with a second shaft neck suitable for being connected with a second-stage piston connecting rod. A second shaft head is formed at the extending end of the second shaft body; the first-stage crank arm is provided with a first crank arm shaft and a first eccentric hole, the first crank arm shaft is rotationally connected with the box wall of the crankcase, and the first eccentric hole is suitable for being