Assembly and disassembly tooling and method for engine piston ring

Abstract

The invention discloses an assembly and disassembly tool for a piston ring of an engine. The assembly and disassembly tool comprises a telescopic support frame used for supporting and positioning the piston ring and an opening mechanism positioned at the upper part of the support frame and connected with the support frame, wherein the width of the telescopic support frame can be adjusted to be applicable to piston rings with different diameters; the opening mechanism can be inserted into an opening of the piston rod and is used for opening the piston ring; and a driving mechanism which can drive the opening mechanism to open slowly at a constant speed so as to enable the opening of the piston rod to be opened is arranged on the opening mechanism. The invention further discloses an assembly and disassembly method for the piston ring of the engine. The structure is simple, the adjustable support frame is utilized to support and position the piston ring, the piston ring is opened through a force generated by threaded connection, and the piston rings with different diameters can be quickly assembled and disassembled.

Description

technical field [0001] The invention relates to the technical field of engine assembly, more specifically, it relates to a tool and method for assembling and disassembling engine piston rings. Background technique [0002] During the engine reliability inspection or maintenance process, the piston ring needs to be disassembled and installed, and the disassembly and installation of the piston ring requires suitable tooling to open the piston ring so that the piston ring can be separated from the ring groove and reinstalled. Most of the existing tooling is a technical solution that uses an arc-shaped guide block to cooperate with the piston ring, and uses a handle to apply force to the tooling. Taking the patented solution with the patent publication number of CN102601768A as an example, the piston ring disassembly tooling of this technical solution has the following shortcoming: [0003] 1. One tooling of this technical solution can only correspond to one type of piston ring...

AI Technical Summary

Problems solved by technology

[0003] 1. One tooling of this technical solution can only correspond to one type of piston ring diameter. Since the patent application states that "the front end face of the gland plate is arc-shaped to match the shape of the piston", this patent solution is only applicable to For a specific model, the scope of application is small;

[0004] 2. The tooling of the patent application uses the force on the handle to push the opening of the piston ring to take out the piston ring. This method of applying force is not easy to control the opening range of the piston ring, and it is easy to damage the piston ring, resulting in economic losses;

[0005] 3. The tooling of this patent is only a tooling for dismantling piston rings, not suitable for the installation of piston rings;

[0006] 4. When the tooling of this patent is disassembled, the supporting effect on the piston ring is not good, and the piston ring is easy to fall, resulting in damage to the piston ring, thereby causing economic losses

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