Damping oil suction hose and manufacturing process thereof

Abstract

The invention discloses a damping oil suction hose and a manufacturing process thereof. The damping oil suction hose comprises an inner rubber layer, an outer rubber layer and a fiber layer. The fiber layer is disposed between the inner rubber layer and the outer rubber layer. In the axial direction, the damping oil suction hose comprises a middle section and connectors connected to two ends of the middle section. A steel wire is wound on the middle section between the fiber layer and the outer rubber layer. The manufacturing process includes: forming the inner rubber layer, winding fiber mesh cloth, winding the steel wire with the assistance of a ruler, and winding the outer rubber layer. The damping oil suction hose is good in strength, rigidity and suction flatness resistance.

Description

technical field [0001] The invention relates to a shock-absorbing oil-absorbing rubber hose. Background technique [0002] Now, the application of oil suction hose is very extensive, such as hydraulic system, oil system and so on. [0003] The existing oil-absorbing rubber hose is mainly composed of an inner rubber layer, an outer rubber layer, and a fiber layer between the inner rubber layer and the outer rubber layer. Although the fiber layer has good bending performance, high temperature resistance and wear resistance, and its density ratio The density of metal wire is much smaller, the tensile strength is more than twice that of steel wire, the tensile modulus is equivalent to that of steel wire, and the elongation at break is only 1 / 4 of that of steel wire, which improves the strength and rigidity of the oil suction hose and reduces its weight. , but its radial bearing capacity is small, and negative pressure is usually generated in the oil-absorbing hose. Therefore, t...

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Problems solved by technology

[0003] The existing oil-absorbing rubber hose is mainly composed of an inner rubber layer, an outer rubber layer, and a fiber layer between the inner rubber layer and the outer rubber layer. Although the fiber layer has good bending performance, high temperature resistance and wear resistance, and its density ratio The density of metal wire is much smaller, the tensile strength is more than twice that of steel wire, the tensile modulus is equivalent to that of steel wire, and the elongation at break is only 1 / 4 of that of steel wire, which improves the strength and rigidity of the oil suction hose and reduces its weight. , but its radial bearing capacity is small, and negative pressure is usually generated in the oil-absorbing hose. Therefore, the oil-absorbing hose with this structure has poor anti-suction ability and small radial rigidity

[0004] In order to solve the above technical problems, a steel wire mesh layer has also been set between the inner rubber layer and the outer rubber layer. Although the oil-absorbing hose of this structure has enhanced radial load-bearing capacity, due to the installation of the steel wire mesh layer, the connecting parts at both ends The flexibility is poor, so it is very difficult to plug in, especially for the situation where the two connectors are very close, it becomes very difficult to insert the oil suction hose to the two connectors

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