Disassembly and assembly device special for piston and connecting rod unit of automobile engine and using method

Abstract

The invention relates to a special assembly and disassembly device for the piston connecting rod group of an automobile engine and its use method. ;According to the piston structure and the size of the combustion chamber, select left and right movable wedges of different diameters and place them in the groove on the top of the piston, and then pull out or install the piston connecting rod group into the engine after tightening it. It is suitable for the disassembly and assembly of engine pistons and connecting rods of different car models; it has the advantages of safety, high efficiency, easy operation and good use effect.

Description

technical field [0001] The invention belongs to the technical field of equipment maintenance, and relates to a special assembly and disassembly device for a piston connecting rod group of an automobile engine and a using method, and is especially suitable for the maintenance of crank connecting rod mechanisms of automobiles and crane engines. Background technique [0002] The piston and connecting rod group are the key components of the engine operation. Generally, multiple pistons and connecting rod assemblies are connected with the crank-and-rod mechanism in different engines. A single piston and connecting rod assembly weighs about 10-12 kg. It is very difficult to take out the connecting rod group and the connecting rod group from the combustion chamber space of the engine. Firstly, the upper cover of the engine cylinder and the oil pan must be opened completely, and after the connecting rod screw fixing the connecting rod cover and the connecting rod under the engine are...

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Problems solved by technology

[0002] The piston and connecting rod group are the key components of the engine operation. Generally, multiple pistons and connecting rod assemblies are connected with the crank-and-rod mechanism in different engines. A single piston and connecting rod assembly weighs about 10-12 kg. It is very difficult to take out the connecting rod group and the connecting rod group from the combustion chamber space of the engine. Firstly, the upper cover of the engine cylinder and the oil pan must be opened completely, and after the connecting rod screw fixing the connecting rod cover and the connecting rod under the engine are removed, use a wooden stick or a hand Go in and push up from the bottom of the car, and push the piston and connecting rod assembly upwards out of the combustion chamber. Inside the cylinder, there are parts such as the crankshaft. In the process of disassembly and installation, two people must coordinate their efforts, and the efficiency of disassembly and assembly is low

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