Glass fiber reinforced plastic stern shaft sleeve and bearing connecting joint

Abstract

The invention relates to the technical field of glass fiber reinforced plastic stern shaft sleeves, in particular to a glass fiber reinforced plastic stern shaft sleeve and bearing connecting joint. The glass fiber reinforced plastic stern shaft sleeve and bearing connecting joint includes a ship body; a strip-shaped tail shaft sleeve is arranged at the lower end of the ship body; bearing positioning groups are respectively arranged at the front end part and the rear end part below the tail shaft sleeve; each bearing positioning set is composed of two positioning threaded sleeves and a positioning bolt. The positioning screw sleeves are pre-embedded in the tail shaft sleeve; the two positioning threaded sleeves are symmetrically arranged on the left side and the right side below the tail shaft sleeve. The axes of the two positioning screw sleeves form an angle of 120 degrees; positioning bolts are arranged in the positioning threaded sleeves; the positioning bol penetrate into the tailshaft sleeve to support and position the bearing; an injection molding cavity is formed between the outer wall of the bearing and the inner wall of the tail shaft sleeve, the two ends of the injection molding cavity are blocked and sealed through detachable plasticine layers, a liquid injection hole and an exhaust hole which are communicated with the injection molding cavity are formed in the twoends of the upper side of the outer wall of the tail shaft sleeve respectively. The glass fiber reinforced plastic stern shaft sleeve and bearing connecting joint has the advantages of being simple in structure, convenient to install, high in stability and connection strength.

Description

technical field [0001] The invention relates to the technical field of a fiberglass stern bushing, in particular to a connection node between a fiberglass stern bushing and a bearing with simple structure, convenient installation, high stability and high connection strength. Background technique [0002] As we all know, my country's FRP boats have been developed since the 1960s, and it has been nearly 40 years. At present, they have basically occupied the small boat market, and are welcomed by business units and passengers for their light weight, high strength, beautiful appearance, and diverse colors. FRP is It is composited with synthetic resin as the matrix and glass fiber as the reinforcing material. It has the strength similar to steel, has the superior performance of water resistance and corrosion resistance, the surface wall is smooth and clean like a mirror, and can be integrally formed. [0003] At present, due to the superior performance of FRP boats, FRP boats are ...

AI Technical Summary

Problems solved by technology

[0003] At present, due to the superior performance of FRP boats, FRP boats are used in various operations. However, during the installation and manufacture of FRP boats, the positioning and installation of the tail shaft is particularly important. The tail shaft generally passes through the tail shaft under the hull of the FRP boat. However, since the tail shaft sleeve and the tail shaft need to be connected by rotation, the tail shaft and the tail shaft sleeve need to be connected by bearings, and the bearings limit the tail shaft. Before installing the tail shaft, the bearing needs to be connected to the tail shaft. In the shaft sleeve, it is necessary to locate the position and installation of the bearing in the tail shaft sleeve. In the existing installation, after the position of the bearing is limited, foam is filled from the gap between the bearing and the tail shaft sleeve. However, due to the The length of the shaft sleeve is long. During the process of filling and foaming, a cavity will be generated, and the filling will not be complete. Moreover, the foam structure will be deformed after being squeezed for a long time, which will affect the connection strength between the bearing and the tail shaft.

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