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Research on Spindle Bearing Configuration of Worktable of Vertical Lathe

2020-09-01 10:11

The acceleration of the development of factory automation and the development of large-scale hydropower and nuclear power have made the application of vertical cars more and more widely, and the specifications of vertical cars are increasing, the carrying capacity is increasing, and the accuracy of vertical cars, especially the rotation accuracy of the worktable, is improving , The large-size vertical lathe worktable has a diameter of more than 25 m. The worktable must not only bear the weight of the workpiece, but also ensure the rotation accuracy under this load, as well as high anti-overturning ability and high speed. The key issue restricting the development of vertical lathes is the manufacturing and configuration of spindle bearings of the worktable. For the convenience of research, this article will study the vertical lathe table diameter range between 1000 mm to 5000 mm, the vertical lathe in this range is also a vertical lathe in the traditional sense.

2017 Copper Clad Laminate Industry Summit Forum was grandly held
The 2018 Copper Clad Laminate Industry Summit Forum was grandly held
Nitrogen introduction [ 2020-09-02 ]
The chemical formula is N2, which is usually a colorless and odorless gas, and nitrogen is generally less dense than air. Nitrogen accounts for 78.08% (volume fraction) of the total atmosphere and is the main component of air. Under standard atmospheric pressure, when cooled to -195.8°C, it becomes a colorless liquid, and when cooled to -209.8°C, liquid nitrogen becomes a snow-like solid. Nitrogen is chemically inactive and difficult to react with other substances at room temperature, so it is often used to make preservatives. However, it can undergo chemical changes with certain substances under high temperature and high energy conditions to produce new substances useful to humans.
PTFE Introduction [ 2020-09-02 ]
Tetrafluoro is a polymer of tetrafluoroethylene. The English abbreviation is PTFE. The basic structure of polytetrafluoroethylene is.-CF2-CF2-CF2-CF2-CF2-CF2-CF2-CF2-CF2-CF2 -. Polytetrafluoroethylene is widely used in various applications that require resistance to acids, alkalis and organic solvents. It is not toxic to humans, but perfluorooctanoate (PFOA), one of the raw materials used in the production process, is considered to have carcinogenic effects.
The gauge line distance and connection size of section steel

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