Cylinder head cover and manufacturing process thereof
A technology of cylinder head cover and manufacturing process, which is applied to engine components, machines/engines, casings, etc., can solve the problems of affecting customers, complicated processes, and unsatisfactory vibration and noise reduction effects, and achieve the effect of reducing noise.
Inactive Publication Date: 2014-02-12
泉州市双塔汽车零件有限公司
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Problems solved by technology
The materials of traditional cylinder head covers are generally cast aluminum, cast iron, and ordinary single-layer steel plates. The disadvantages are that the cost is high and the effect of vibration and noise reduction is not ideal, which directly affects the working performance and efficiency of the engine. , the cost increase will also affect the customer's confidence in the product
[0003] In order to reduce vibration and noise, the current cylinder head cover adopts an inner shell structure. The process is to make the outer shell and the inner shell from ordinary steel plates, and then weld them together. The process is complicated and the cost is high.
Chinese document CN200520034054.6 discloses a noise-reducing cylinder head cover for an engine. The cylinder head cover is a cylinder head cover formed by overlapping stamping of double-layer steel plates. There is still room for improvement in terms of vibration and noise reduction
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[0019] Example: see Figure 1 to Figure 4 , a cylinder head cover 1, which is molded into a shell 10 by stretching a vibration-damping composite plate through a mold. The vibration-damping composite plate is formed by bonding two layers of steel plates and a middle layer of damping glue. The gap is 1.7-2mm. When the thickness of the two steel plates of the preferred damping composite plate in the present invention is 0.80 mm and 0.80 mm, the stretching gap of the mold is 1.8 mm. The opening side of the shell is the installation surface, and the peripheral outer ring 101 of the installation surface and the annular inner protection strip 102 form a groove for installing the sealing ring. The inner protection strip is an annular plate formed by a steel plate and spot welded on the inside of the casing on the step surface.
[0020] Such as Figure 5 As shown, a manufacturing process of a cylinder head cover includes blanking, stretching, shaping, trimming, turning holes of the ...
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The invention discloses a cylinder head cover and a manufacturing process of the cylinder head cover. The cylinder head cover is formed by stretching a damping composite board through a die, wherein the damping composite board is formed by two steel boards and a layer of damping glue in the middle, and the stretching interval of the die is 1.7-2mm. The manufacturing process of the cylinder head cover comprises the steps of blanking of the damping composite board, stretching, shaping, trimming, hole flanging and welding to obtain an annular inner protective strip. The cylinder head cover formed by the damping composite board has the advantages that the noise reduction performance is achieved, noise generated when parts inside an engine work can be lowered greatly, and especially for cast cylinder head covers, the cost advantages and performance advantage can be more reflected.
Description
technical field [0001] The invention discloses a cylinder head cover and a manufacturing process thereof, belongs to the technical field of engine casings according to the International Patent Classification (IPC), and in particular relates to a cylinder head cover produced by double-layer steel plates. Background technique [0002] The cylinder head cover is a cover on the engine block, and its main functions are as follows: 1. Prevent external impurities from entering the engine; 2. Prevent internal oil leakage; 3. Oil mist separation; 4. Crankcase pressure regulation; 5. Isolation Noise transmitted by the structure; 6. As a mounting support for other parts. The materials of traditional cylinder head covers are generally cast aluminum, cast iron, and ordinary single-layer steel plates. The disadvantages are that the cost is high and the effect of vibration and noise reduction is not ideal, which directly affects the working performance and efficiency of the engine. , The...
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IPC IPC(8): F02F7/00F02B77/13
Inventor 陈其荣苏志伟尹艳明
Owner 泉州市双塔汽车零件有限公司