Cross-type screw cylinder sleeve

Abstract

The invention relates to the technical field of engine parts, in particular to a cross-type screw cylinder sleeve; comprising a straight-through double-opening cylinder sleeve body; one end of the cylinder sleeve body has a first flange and a second flange, a groove is provided between the first flange and the second flange, and the other end of the cylinder sleeve body is provided with a plurality of stiffeners; the cylinder sleeve body is provided with at least two oil injection holes distributed evenly along the periphery of the cylinder sleeve body, the inner wall of the cylinder sleeve body is provided with a plurality of oblique grooves, and the oil injection holes are connected with end ports of the oblique grooves; The cross-type screw cylinder sleeve is simple in structure, reasonable in design and convenient to use, the other end of the cylinder sleeve body is provided with the stiffeners, strength of the cylinder sleeve is improved by the structural design of the stiffeners, it is possible to add oil into the oblique grooves through the oil injection holes during use, the oil can enter the cylinder sleeve body through the oblique grooves, lubrication degree is increased, abrasive degree is lowered, damage to the cylinder sleeve is reduced, and the service life of the cylinder sleeve is prolonged.

Description

technical field [0001] The invention relates to the technical field of engine accessories, in particular to a cross-type spiral cylinder liner. Background technique [0002] Piston ring is one of the important parts of the main body of the engine. Its performance and fuel consumption depend on the piston ring. The cylinder liner, which is the key product, plays a decisive role in the manufacture of piston rings. When the piston rings are assembled When it is put into the inner wall of the cylinder liner for running-in, it is completely determined by the shape of the inner diameter of the cylinder liner. [0003] Most of the existing cylinder liners are all-metal liners, which have high production costs and are not resistant to corrosion and wear. Especially in oil drilling equipment, due to the high work intensity and harsh working environment, the service life of ordinary cylinder liners is short. It needs to be replaced frequently. In order to meet the needs of drilling w...

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Problems solved by technology

[0003] Most of the existing cylinder liners are all-metal liners, which have high production costs and are not resistant to corrosion and wear. Especially in oil drilling equipment, due to the high work intensity and harsh working environment, the service life of ordinary cylinder liners is short. It needs to be replaced frequently. In order to meet the needs of drilling work, ceramic cylinder liners have been introduced in the industry, and a layer of ceramic particles is attached to the inner side of the all-metal cylinder liner. However, in actual work, the edges of the ceramic layer, especially near the two cylinders The wear and tear of the ceramic layer at the mouth of the barrel is the most serious, therefore, the existing technology needs to be further improved and perfected

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