Alloy structure steel die-forged wheel hub of automobile engine cooling water pump

Abstract

The invention discloses an automobile engine cooling water pump alloy structural steel die forging hub. The automobile engine cooling water pump alloy structural steel die forging hub comprises a cylinder shell which is of a hollow structure, the bottom face of the cylinder shell is provided with a circular opening, the edge part of the bottom of the cylinder shell outwards extends horizontally to form a ring of protrusion parts, the number of the protrusion parts is 23, and the protrusions are arranged along the circumference of the side face of the cylinder shell at equal intervals; a ring of circular protrusion parts are further arranged on the upper surface of the cylinder shell, and the circular protrusion parts and the upper surface of the cylinder shell are in concentric circle; a through hole is further formed in the center part of the cylinder shell and penetrates the circular protrusion parts and the upper surface of the cylinder shell; and a ball is further arranged between every two adjacent protrusions in the ring of protrusion parts located at the edge part of the bottom of the cylinder shell.

Description

technical field [0001] The invention relates to the technical field of manufacturing automobile engine accessories, in particular to an alloy structural steel die-forged wheel hub of an automobile engine cooling water pump. Background technique [0002] In the existing technology, we take the wheel hub of the Ford 3.0L engine cooling water pump as an example. The original design is a powder metallurgy sprocket, and the normal working speed is about 3000n / min. Because it is a sprocket drive, it will receive a little impact during use. The density of the powder metallurgy pulley is only 6.5g / cm3, the hardness is 70HBS, and the elongation is almost zero. Therefore, when it is impacted at high speed, it has no toughness and is easy to break. Such quality accidents often occur during customer use. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide an alloy structural steel ...

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Problems solved by technology

[0002] In the existing technology, we take the wheel hub of the Ford 3.0L engine cooling water pump as an example. The original design is a powder metallurgy sprocket, and the normal working speed is about 3000n / min. Because it is a sprocket drive, it will receive a little impact during use. The density of the powder metallurgy pulley is only 6.5g / cm3, the hardness is 70HBS, and the elongation is almost zero, so it has no toughness when impacted at high speed, and it is easy to break. Such quality accidents often occur during customer use.

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