Method of producing connecting rod with bearing, and connecting rod with bearing

A bearing pad and connecting rod technology, applied in the direction of manufacturing tools, bearings, connecting rods, etc., can solve the problems of peeling, the reduction of the connection strength of the metal layer of the bearing pad, and the reduction of the connection strength of the bearing pad and the connecting rod, so as to improve the output power, The effect of overall size and weight reduction, heat transfer and heat dissipation capability improvement
CN101065586AInactive Publication Date: 2007-10-31JAPAN SCI & TECH CORP +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JAPAN SCI & TECH CORP
Publication Date
2007-10-31
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A method of producing a connecting rod with a bearing, in which both a process for producing a bearing separately from a connecting rod and a process for assembling the bearing to the connecting rod can be eliminated to reduce processes, labor, and costs to produce the connecting rod. A hollow cylindrical molding (38) of a bearing metal material is inserted and fitted, as an inner member, inside an inner surface of a circular large end hole (18) of a large end section (12) of a connecting rod (10). A tapered surface (30) of a rotary pressing tool (26) is pressed, while rotating, to the hollow cylindrical molding (38) to heat and soften the hollow cylindrical molding (38), causing the hollow cylindrical molding (38) of the bearing metal material to plastically flow axially and radially outward, whereby a bearing metal layer (22) is directly joined and formed on the inner surface of the large end hole (18).
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Description

technical field

[0001] The invention relates to a method of manufacturing a connecting rod with a bearing shell or bearing shells, and to a connecting rod with a bearing shell or multiple bearing shells. Background technique

[0002] A connecting rod connecting a piston and a crankshaft of a vehicle engine includes a large end portion on the crankshaft side, a small end portion on the piston side, and a rod portion between the two ends. The small end part has a circular fitting hole (that is, a small end hole) in which a piston pin (a pisoton pin) for connection is rotatably installed; the big end part has a fitting hole (that is, a big end hole) in which a crank pin (a crankpin) for connection is rotatably mounted.

[0003] A con rod bearing is fitted with the inner surfaces of the opposite connecting rod fitting holes of the large end portion and the small end portion of the connecting rod, the bearing bearing is cylindrical as a whole, and the crank pin and the piston pi...

Claims

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