Grading vibration reduction device based on magnetic force

A vibration damping device and magnetic force technology, applied in the direction of spring/shock absorber, vibration suppression adjustment, mechanical equipment, etc., can solve problems such as speeding up the replacement cycle of parts, affecting the quality of plate and strip products, and affecting the life of drive shafts, etc., to achieve Good development space and market prospect, compact structure, improved inhibition effect

CN112303182AActive Publication Date: 2021-02-02HANGZHOU DIANZI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-02-02

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Abstract

The invention belongs to the technical field of rolling mill vibration reduction devices, and particularly relates to a grading vibration reduction device based on magnetic force. The device comprisesan annular connecting disc, a central disc, an annular support and a spline shaft. The spline shaft and the central disc are connected into a whole through interference fit. A cavity and vibration reduction windows are arranged in the annular connecting disc. Two magnets the same in magnetic pole, a hydraulic transmission device with a telescopic rod and an arc-shaped push rod are arranged in each vibration reduction window. Spring push rods are mounted on the annular support. The central disc rotates to drive the spring push rods to do translation up and down, and the arc-shaped push rods are driven by the spring push rods to move, so that the two magnets in each vibration reduction window get close to each other to generate mutual repulsive magnetic force to achieve vibration reduction.The device has the advantages that torsional vibration and vertical vibration of a transmission system can be restrained, the restraining degree is changed in a graded manner according to the actualvibration condition, and then the torsional vibration restraining effect is improved.
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Description

technical field

[0001] The invention belongs to the technical field of vibration damping devices for rolling mills, and in particular relates to a graded vibration damping device based on magnetic force. Background technique

[0002] With the rapid development of science and technology, high-speed machinery and light structure, a large number of mechanical vibration problems continue to emerge, causing the deterioration of the working state of the machinery, resulting in a decline in the production efficiency and work quality of the mechanical device. During the operation of the rolling mill, due to the interaction between torsional vibration and vertical vibration, it not only affects the life of the transmission shaft and other components, but also speeds up the replacement cycle of parts, which will seriously cause the fracture of the transmission shaft and affect the plate and strip products. Therefore, in order to improve the quality of the plate and strip and bring hig...

Examples

Embodiment 1

[0025] Such as figure 1 and figure 2 As shown, the grading damping device based on magnetic force includes an annular connecting disc 1, a central disc 3, an annular support 10 and a spline shaft 4; the spline shaft and the central disc are connected as a whole by interference fit; The bracket is located on the periphery of the central disk, and the annular connecting plate is located on the periphery of the annular support; inside the annular connecting plate are provided with 4 cavities 7, 4 damping windows 13 and 4 annular lubricating oil grooves 9; on the annular support 4 spring push rods 6 are also fixedly installed, one end of the spring push rod extends into the cavity, and the other end of the spring push rod contacts the central disc; and spring push rods are all arranged around the center of the annular connecting disc at equal distances; wherein, the annular connecting disc, the central disc and the annular support are all symmetrical structures. The splined sha...