Press machine flywheel system and method of lubricating the same

CN121403752BActive Publication Date: 2026-06-19JIER MACHINE TOOL GROUP

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: JIER MACHINE TOOL GROUP
Filing Date: 2025-12-30
Publication Date: 2026-06-19

AI Technical Summary

Technical Problem

Traditional intermittent thin oil lubrication cannot meet the heat dissipation requirements of high-speed presses, resulting in a sharp increase in bearing temperature and limiting the increase in press operating speed.

Method used

The flywheel assembly and braking assembly are integrated, and hydraulic oil is used as the lubricating medium. The clutch sleeve and the flywheel assembly are connected through the oil passage gap to form an uninterrupted lubrication system. The bearing position is precisely positioned by the inner and outer spacers, and the oil circulation and efficient heat dissipation are achieved by combining U-shaped lubrication channels and oil drain channels.

Benefits of technology

It achieves uninterrupted lubrication and efficient heat dissipation of the flywheel system, increases the speed of the power shaft, adapts to high-frequency operation, reduces equipment size and number of parts, lowers maintenance costs and operational error risks, and extends the service life of components.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN121403752B_ABST

Patent Text Reader

Abstract

This invention relates to a press flywheel system and its lubrication method, belonging to the field of press equipment. The technical solution is as follows: A press flywheel system includes a power shaft, on which a flywheel assembly and a braking assembly are mounted. The flywheel assembly includes a support sleeve, and the power shaft is rotatably mounted in the inner hole of the support sleeve. The flywheel is mounted on the outer circumference of the power shaft via two bearings. The braking assembly includes a clutch sleeve, the right end face of which is concentrically and fixedly connected to the left end face of the flywheel. The clutch sleeve is connected to an oil inlet pipe, and the support sleeve has a lubrication channel. One end of the lubrication channel communicates with the right end of the gap between the support sleeve and the flywheel, and the other end of the lubrication channel is connected to a return oil pipe. This system opens the bearing clearance of the flywheel assembly and connects it to the inner cavity of the clutch sleeve. The hydraulic oil of the clutch is forced into the bearing clearance of the flywheel by a draining method, using hydraulic oil as lubricant, which greatly increases the oil flow rate at the flywheel.

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