Forced ventilation cooling rotating platform
A technology of cooling rotation and forced ventilation, which is applied in the field of ingot casting tools, can solve the problems of high cost of liquid nitrogen, endangering personal safety, etc., and achieve the effects of improving cooling efficiency, reducing forging time, and uniform force
Active Publication Date: 2015-03-11
CHINA FIRST HEAVY IND +1
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Problems solved by technology
There used to be a water-cooled type, but the water-cooled type has been gradually eliminated if a steel leak accident occurs, which will endanger personal safety. Later, it was developed into liquid nitrogen plus air-cooled technology. The problem is that the cost of liquid nitrogen is very high.
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[0014] As can be seen from the accompanying drawings, the forced ventilation cooling turntable of the present invention has a radial positioning bearing seat 6 with a radial positioning bearing 7 fixed at the center of the lower plane of the load-carrying disc 1 . The lower plane of the load-bearing disc 1 is fastened to the outer edge by the disc spring group 2 and the wheel bearing seat 3, and is placed on the annular track 10 on the support seat 11 by the wheel bearing 4 and the wheel 5. The chain support 8 is fixed on the outer edge of the load disc 1 lower plane, and forms a circumferential chain with the column pin 9 . Around the support base 11, the motor 12 on the motor base 17 is connected to the shaft coupling 13, the brake 14 and the speed reducer 15 in turn, and the sprocket 16 fixed on the transmission shaft extending above the speed reducer 15 is engaged with the column pin 9. The base is formed by connecting the ring track 10 and the supporting base 11 with bolt...
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The invention discloses a forced ventilation cooling rotating platform, which comprises a rotating rack, a base, a transmission device and a ventilation device, wherein the rotating rack is supported on an annular rail of the base by a load bearing disk through disk springs and wheels; the load bearing disk is kept aligned with the base through a radial positioning bearing, and is provided with a circumferential chain consisting of pins; the transmission device consists of a motor, a shaft coupling, a brake, a speed reducer and a chain wheel, and is used for driving the rotating rack to rotate; the ventilation device consists of an air inlet pipeline, a steel ingot mold base, a steel ingot mold inner sleeve, a core and an exhaust pipeline, and forms a sealed and high-efficiency cooling loop. According to the forced ventilation cooling rotating platform, a function of simultaneous rotation and ventilation of the rotating platform in a vacuum environment is realized; a heat insulation material is arranged on the inner side of the exhaust pipeline, so that the cooling efficiency is improved; impact on equipment when a steel ingot mold falls from an overhead crane is retarded by a disk spring set between the wheels and the load bearing disk, so that the wheels are uniformly stressed, and can rotate stably; reliable equipment is provided for casting a hollow steel ingot, reducing forging time, saving energy and protecting the environment.
Description
technical field [0001] The invention relates to tools for casting steel ingots, in particular to tooling for casting hollow steel ingots under vacuum conditions. Background technique [0002] Most of the steel ingots in the prior art are solid steel ingots. If it is forged into a sleeve shape, it needs to be punched first, and then gradually forged to the required size. Later, it gradually developed to the hollow steel ingot, but the cooling of the inner sleeve of the hollow steel ingot has always been a technical difficulty. There used to be a water-cooled type, but the water-cooled type has been gradually eliminated if a steel leak accident occurs, which will endanger personal safety. Later, it was developed into liquid nitrogen plus air-cooled technology. The problem is that the cost of liquid nitrogen is very high. Contents of the invention [0003] The technical problem to be solved by the present invention is: under vacuum conditions, the steel ingot mold is placed...
Claims
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Login to View More IPC IPC(8): B22D7/12B22D7/04
CPCB22D7/04B22D7/12
Inventor 王喜春吴生富阮东辉李仁厚
Owner CHINA FIRST HEAVY IND