SU1397653A1 - Eccentric mechanism - Google Patents

Abstract

This invention relates to an eccentric transducer of rotational motion into reciprocating. The purpose of the invention is to increase the efficiency and durability of the mechanism due to the elimination of gaps in the eccentric node. When the shaft 5 rotates, the podshpnik 6 acts on the stops 8 and 9 as eccentrics, due to which the frame 3 makes a reciprocating movement in the guide 2 of the housing 1. The elastic elements 10 eliminate the gaps between the stops 8, 9 and the bearings 6, which excludes the gaps in eccentric knot. 1 hp f-ly, 2 ill.

Description

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The invention relates to mechanical engineering, namely, to an eccentric rotary motion inverter into reciprocating, can be used, in particular, in compressor technology.

The purpose of the invention is to increase the efficiency and durability of the mechanism by eliminating the gaps between the cam and the frame.

FIG. 1 shows a structural diagram of a mechanism with an eccentric in the form of two rolling bearings; in figure 2 - the same, with an eccentric of three hedgers.

The mechanism includes a housing 1 with a rectilinear guide 2, installed in the guide 2 a slider in the form of a frame 3 with pins 4, mounted in the housing 1 and placed in the frame 3 a driving shaft 5, the axis of rotation of which is perpendicular to the guide 2. On the shaft 5 eccentrically its axis is fixed at least two bearings 6 quality-NIN, coaxially with each other.

In the pins 4 of the frame 3, the sockets 7 are made in the form of grooves or cylindrical holes coaxial with the guide 2. In the sockets 7 there are stops 8 and 9, each pressed to the corresponding bearing 6 by elastic elements 10. If the shaft 5 has three and more | bearing 2, then, for example, the stop 9 interacts with extreme supports, and the stop 8 - with the rest of the bearings. Such a structure makes it possible to exclude the bending moment on the shaft 5. The deformation force of the elastic elements 10 is greater than the maximum force with which the bearings 2 act on the stops 8 and 9.

The mechanism works as follows.

When the shaft 5 rotates from the drive (not shown), the bearings 2 act on the stops 8 and 9 as eccentrics.

whereby the frame 3 reciprocates in the guide 2. The elastic elements 10 eliminate the gaps between the stops 8 and 9 and the bearings 2. The mechanism works without impacts, which increases its durability. The absence of sliding friction between the stops 8 and 9 and the outer rings of the bearings 2 increases the efficiency of the mechanism.

Claims (2)

1. An eccentric mechanism, comprising a housing with a rectilinear guide, mounted in a slide guide in the form of a frame with pins, mounted in the housing and placed inside the frame of a drive shaft, the axis of rotation perpendicular to the guide and fixed first bearing eccentrically on the shaft Rolling quality, distinguished by the fact that, in order to improve efficiency and durability, in the trunnions of the frame, sockets are formed in the form of grooves or cylindrical holes coaxial with the guide, and the mechanism is provided with a second rolling bearing fixed on the shaft coaxially with the first 4, two stops mounted for movement in the respective sockets and intended to interact with the respective bearings, and two elastic elements w, designed to tighten the respective stops to the bearings. 2. The mechanism according to claim 1, of which is provided with at least one more rolling bearing fixed coaxially on the shaft with the others, while one stop is designed to interact with the outer bearings, and the other with the others. Compiled by Savitsky Editor L. Zaitsev Tehred L. Serdyukova Corrector. Kravtsov Order 2580/34 Circulation 784 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Yu 3 3 C Fi.2 Subscription