Centrifugal casting system for internal combustion engine air cylinder sleeve

Abstract

The invention discloses a centrifugal casting system for an internal combustion engine air cylinder sleeve. The centrifugal casting system comprises a centrifugal machine, a pouring device, a spraying device, a pipe drawing device and a cleaning device. The centrifugal machine comprises a mould barrel for molding the air cylinder sleeve, end covers arranged at the two ends of the mould barrel, a power device and a transmission device connected with the power device. The transmission device comprises a hollow rotary shaft, the mould barrel is coaxially sleeved with the hollow rotary shaft, the hollow rotary shaft is supported on a bearing pedestal through a bearing, the power device drives the hollow rotary shaft to rotate, and therefore the mould barrel is driven to rotate. Compared with the prior art, the centrifugal casting system has the beneficial effects that the mould barrel is circumferentially restrained on the hollow rotary shaft, throbbing of centrifugal movement of the mould barrel is reduced, the rotating precision of the mould barrel is improved, and the quality and casting efficiency of a casting are improved; and when the mould barrel rotates at a high speed, weight blocks are subjected to the action of centrifugal force to move outwards, and therefore the end covers are locked through moving rods, and molten metal is prevented from being splashed.

Description

technical field [0001] The invention relates to the technical field of cylinder liner processing equipment, in particular to a centrifugal casting system for an internal combustion engine cylinder liner. Background technique [0002] Centrifugal casting machine is a kind of casting equipment that uses centrifugal force, molten metal enters the high-speed rotating cylinder, cools and shapes under the action of centrifugal force to obtain metal castings. Among them, the horizontal casting machine is a typical centrifugal casting machine, which is mainly used for pouring various tubular castings. The main structure of the existing horizontal casting machine is to include a horizontally arranged mold cylinder. The bottom of the mold cylinder is supported by a pair of supporting rollers and driven by the supporting rollers. The supporting rollers are connected to the power device and driven by it. There is a circular end cap. [0003] The existing centrifugal casting system has...

AI Technical Summary

Problems solved by technology

At present, pins are generally used to fix the end cap, and the knocking method is used for loading and unloading in production, which will cause great damage to the molded cylinder, and because of the knocking vibration, it may also damage the balance of the molded cylinder and affect the product quality

Therefore, the use of pins to fix the end cover has the disadvantages of low safety factor, large destructiveness, inconvenient operation, and affecting production efficiency.

[0006] The extubation device, cleaning device, and spraying device are independent traveling vehicles. The extubation device, cleaning device, and spraying device complete their respective operations, and it takes a long time to exchange and transfer to the next operation process. The operation is complicated and the production The cycle is long, the work efficiency is low, and in the process of operation, it also needs to spend a lot of manpower and material resources, the production cost is high, and the equipment occupies a large area

[0007] The centrifugal casting of the prior art mainly pours the molten metal into the cavity through the pouring ladle and the launder, and then carries out the next casting process, but the following problems exist in the existing pouring process: 1. Due to the large weight of the molten metal , manual pouring consumes physical strength, and it is not easy to control the tilting rate of the pouring ladle. When the pouring rate is too fast, the molten metal is easy to overflow from the cavity; 3. For horizontal centrifugal casting, the launder of the prior art directly passes through the insertion type The horizontal part in the cavity is poured, and the molten metal can only flow out from the end of the horizontal part. The molten metal strongly impacts a certain fixed point of the cavity, which damages the anti-corrosion material at this point.

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