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[CN 201811157250.0] Hydraulic crank eccentricity adjusting device for crank press
[CN 201811157250.0] Title of a hydraulic crank eccentricity adjusting device for crank press: Application number of a hydraulic crank eccentricity adjusting device for crank press: CN 201811157250.0 Applicant: Xi 'an Jiaotong University Application Date: 2018-9-30 Patent Type: Invention Application for a hydraulic crank eccentricity adjusting device for crank press, including a drive shaft, both ends of the drive shaft supported on the fuselage through bearings, and a center block connected to the middle of the drive shaft, plungers are installed in the two grooves in the middle of the center block. The plungers are closely matched with the grooves to form closed cavities A and B. The other end of the plunger is close to the inner wall of the eccentric ring. The two sides of the eccentric ring are matched with the grooves of the first and second side discs. The first and second side discs are installed on the drive shafts on both sides of the center block; the other side of the first side disc is tightly attached with a flow distribution device, the flow distribution device is installed on the fuselage. Two oil circuits are provided in the flow distribution device. One end of the two oil circuits is connected to the closed cavities A and B through the two oil circuits in the first side plate. The other end is connected with the two oil outlets of the hydraulic valve; the present invention controls the amount of oil entering the closed cavity A or B through the reversing of the hydraulic valve, and the plunger will push the eccentric ring to displace, realize the real-time adjustment of the eccentricity of the crank structure, saving time and effort.
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