An easy-to-assemble and disassemble engine timing cover installation structure
A timing cover and installation structure technology, applied in the direction of engine components, machines/engines, housings, etc., can solve the problems of affecting the NVH quality of the engine, easy resonance, high maintenance costs, etc., to achieve improved NVH quality, high labor efficiency, The effect of simple operation process
Active Publication Date: 2017-08-25
CHONGQING CHANGAN AUTOMOBILE CO LTD
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AI Technical Summary
Problems solved by technology
For the maintenance of the timing gear train, all the mounting bolts need to be disassembled one by one, which is labor-intensive and time-consuming, and special tools are required, the maintainability is poor and the maintenance cost is high
In addition, since the timing cover and the cylinder block are rigidly connected by bolts, resonance is likely to occur between the two, which affects the NVH quality of the engine
Method used
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Embodiment Construction
[0016] In order to enable those skilled in the art to better understand the technical solution, the present invention will be further elaborated below in conjunction with the accompanying drawings:
[0017] see figure 2 , is the timing cover installation structure proposed by the present invention, the timing cover 1 is installed on the cylinder block 4 through 10 buckle structures.
[0018] see image 3 , the timing cover 1 is formed by injection molding of plastic material, and 10 T-shaped chucks 1-1 are molded together at the inner edge of the cavity of the timing cover 1 during injection molding. Correspondingly, there are 10 ball studs 3 on the cylinder block. There are also 10 rubber connectors 2 for intermediate transition connections. The front end of the rubber connector 2 has a T-shaped slot 2-1, and the rear end has a ball joint slot 2-2. The T-shaped chuck 1-1 on the timing cover is engaged with the T-shaped groove 2-1 on the rubber connector, and the ball groo...
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The engine timing cover installation structure proposed by the present invention includes a timing cover and a cylinder block, and the timing cover is mounted on the cylinder block through a snap-fit structure. The clip structure includes a clip head on the timing cover, a ball stud on the cylinder block, and a connecting piece connected by an intermediate transition. The two ends of the connecting piece are respectively provided with a clip slot matched with the clip head and The ball head groove matched with the ball head bolt; the timing cover is clamped with the card groove of the connecting piece through the clamping head, and the cylinder block is connected with the ball head groove on the connecting piece through the ball head bolt, so that the timing cover and the connecting piece are connected with each other. Connection to the cylinder block. Such a snap connection method is convenient for assembly and disassembly, and has high labor efficiency. Further, in order to avoid the rigid connection between the timing cover and the cylinder block, the rubber components are used for the connecting parts, which can reduce the risk of resonance and improve the NVH quality of the engine.
Description
technical field [0001] The invention belongs to the automobile engine technology, and in particular relates to the installation structure of the engine timing cover and the cylinder body. Background technique [0002] The engine timing cover is a component that assembles and protects the engine timing gear train. Now the timing cover is generally fixed on the cylinder block and cylinder head with 8-10 bolts. figure 1 It is a traditional engine timing cover installation structure, and the timing cover 1 is installed on the cylinder block and the cylinder head by 10 bolts 5 . For the maintenance of the timing gear train, all the mounting bolts need to be disassembled one by one, which is labor-intensive and time-consuming, and special tools are required, the maintainability is poor and the maintenance cost is high. In addition, since the timing cover and the cylinder block are rigidly connected by bolts, resonance is likely to occur between the two, which affects the NVH qual...
Claims
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IPC IPC(8): F02F7/00
Inventor 王雷王岳宇邓水斌李丁丁黎仁聪
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD