Fixed eddy disc body and eddy disc fluid machine employing the same

Abstract

The invention provides a fixed eddy disc body and an eddy disc fluid machine employing the same, which can inhibit an overturning moment which takes a crank pin mechanism as a center. The machine is a cantilever-type eddy disc fluid machine and is provided with the fixed eddy disc body which is fixed in a housing; a cycling eddy disc body which is engaged in a rotatable manner relative to the fixed eddy disc body and forms a compression space in a movable manner; a driving shaft which supports the cycling eddy disc body through an eccentric shaft; and a crank pin mechanism which can prevent the autorotation supporting of the cycling eddy disc body. The crank pin mechanism is provided with a first shaft which is rotatably supported on the fixed eddy disc body, and a second shaft which is rotatably supported on the cycling eddy disc body and is eccentric relative to the first shaft. The first shaft fixed on the fixed eddy disc body is located in a range in a direction of push of the compression space formed by the fixed eddy disc body and the cycling eddy disc body.

Description

technical field [0001] The present invention relates to a fixed scroll body and a scroll fluid machine using the fixed scroll body, and more particularly to an arrangement structure capable of suppressing the harmful overturning moment generated by a so-called cantilever type scroll fluid machine A fixed scroll body and a scroll fluid machine using the fixed scroll body. Background technique [0002] In conventional scroll fluid machines of this type, the center of the base circle of the spiral (wrap) of the orbiting scroll is eccentric from the center of the end plate of the orbiting scroll in order to achieve miniaturization. [0003] In addition, as a scroll fluid machine, there is a so-called cantilever type scroll fluid machine, which drives the eccentric shaft portion of the side of the orbiting scroll of the crankshaft, and supports the orbiting scroll in a cantilever manner via a bearing member. . [0004] In addition, for example, in the conventional orbiting scro...

AI Technical Summary

Problems solved by technology

[0009] However, in Patent Document 1, the orbiting scroll is bearing-supported by coupling the hub protruding toward the central axis on the back side with the crankshaft, and the vicinity of the outer peripheral surface of the orbiting scroll is a structure in which the force in the thrust direction is supported by the sliding surface. The eccentric direction of the center of the basic circle of the helix is ​​eccentric, and at the position close to the outer periphery from the center, the change of the external force relative to the thrust direction is also greatly affected, and there is an unbearable danger

Images