Engine cylinder sleeve puller

Abstract

Provided is an engine cylinder sleeve puller. Square threads are adopted by a screw rod of the engine cylinder sleeve puller, and the lower end of the screw rod is turned to be an H-shaped rod head. A pulling plate is a pulling head with a flanging, namely in a long-strip-shaped outer arc circular bead shape, and can penetrate through a cylinder hole. In use, the screw rod must firstly penetrate through a round hole in the edge of the pulling plate, and then the screw rod is led to a central strip-shaped screw hole to be firmly clamped. A central cone plays a central locating and guidance role, a bush is a scrapped old cylinder sleeve, however the size and the length of the bush must be larger than those of a replaced cylinder sleeve, and when no old cylinder sleeve can be used, three steel round bars with the same length or wooden square bushes can be used and evenly distributed on the periphery at intervals with 120-degree included angles. The engine cylinder sleeve puller is easy to manufacture, economical, practical and convenient to use, time and labor are saved, and the engine cylinder sleeve puller is quite popular with motor mechanics.

Description

technical field [0001] The invention relates to a puller for dismantling an engine cylinder liner, which belongs to a special tool for dismantling an engine cylinder liner. Background technique [0002] As we all know, gasoline engines and diesel engines generally use dry cylinder liners or wet cylinder liners, but no matter which one, the cylinder can be repaired by picking and enlarging the size, and the dry cylinder liner adopts a certain interference cylinder liner Pressed into the original cylinder of the engine to restore its standard size. In other words: When the cylinder liner of the engine exceeds the maximum repair limit of the cylinder bore, or when a serious cylinder liner failure occurs in an individual cylinder in a multi-cylinder engine for a vehicle, the old cylinder liner must be pulled out to replace it with a new one. At present, there are many technologies for pulling out the cylinder liner. The cylinder liner is used to bore out the old cylinder liner,...

AI Technical Summary

Problems solved by technology

However, due to the interference fit between the cylinder liner and the bearing hole, it is extremely difficult to take out the cylinder liner by manual knocking and prying methods, and what is even more unsafe is that a little carelessness will damage the cylinder wall and the fixed shoulder at the lower part of the cylinder block. It is very necessary to invent a pulling tool for changing various cylinder liners on the car

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