RU131098U1 - FOUR-ROW CRANKSHAFT CRANKSHAFT - Google Patents

Abstract

1. The crankshaft of a four-row opposed compressor containing the main journals, connecting rods, intermediate necks, cheeks, a separator, an oil channel, consisting of communicating straight branches, characterized in that the lubricant for the friction surfaces of the connecting rods and rolling bearings on the main journals flows the central hole from the side of the lubrication system and is distributed through a system of oil channels, abundantly entering the friction zone under the influence of inertia during operation, while the whole weekend the holes of the oil channels are located at the most remote points from the axis of the center of rotation of the crankshaft, and the direction of the oil channels is located on the same plane and in a straight line as the outlet holes. 2. The shaft according to claim 1, characterized in that at the end of the crankshaft are four center holes designed to install the crankshaft on the machine. The shaft according to claim 1, characterized in that at the end of the crankshaft there are four through center holes, one of which acts as an oil channel.

Description

The field of technology.

The inventive utility model relates to the field of engineering, namely to compressor engineering. The crankshaft is one of the most important, expensive and stressed parts and is intended for use in crank mechanisms of reciprocating compressors.

The level of technology.

In the field of mechanical engineering, namely in compressor engineering, crankshafts are widely known (N.A. Yastrebova, A.I. Kondakov, V.D. Lubenets, A.N. Vinogradov "Technology of compressor engineering" Publishing house "Engineering" 1987). Also, as an analogue of a utility model, the applicant points to patent No. 1121942 with a priority dated 08.24.2011, “Crankshaft of a reciprocating opposed four-row compressor” IPC: F01M 1/06; F16C 3/14, containing root necks, connecting rod necks, intermediate necks, cheeks, separator, oil channels. However, their disadvantage is the location and direction of the holes of the oil channels, which complicates the supply of lubricant to the area of rubbing surfaces (friction zone).

The occurrence of any type of wear and an increase in its intensity is influenced by many factors, including the place of supply of the lubricant to the rubbing surfaces (the location of the oil channel relative to the rubbing surfaces).

Disclosure of a utility model.

- the presence of structural elements;

- mutual arrangement of elements;

The technical result provided by the claimed utility model is to achieve the possibility of a plentiful supply of lubricant in the area of rubbing surfaces.

The essence of the utility model consists in the fact that the crankshaft of the opposed four-row compressor contains root necks, connecting rods, intermediate necks, cheeks, a separator, an oil channel consisting of communicating rectilinear branches, where the lubricant is for rubbing surfaces of the connecting rod necks and rolling bearings on the root necks enters through the central hole from the side of the lubrication system and is distributed through a system of oil channels, abundantly entering the friction zone under the influence of inertia during operation.

Wherein:

- all the outlet openings of the oil channels are located at the most remote points from the axis of the center of rotation of the crankshaft;

- the direction of the openings of the oil channels is located on the same plane and in a straight line as the outlet openings;

- at the end of the crankshaft are four center holes designed to install the crankshaft on the machine;

- at the end of the crankshaft are four through-center holes, one of which acts as an oil channel;

A brief description of the drawings.

Figure 1 gives a complete picture of all the components of the crankshaft. Figure 2 is a diagram explaining the location and direction of the holes of the oil channels. Figure 3 - diagram of the end of the shaft.

Implementation of a utility model.

The crankshaft of a four-row opposed compressor (Fig. 1) contains four main necks (1, 2, 3, 4), four connecting rod necks (5, 6, 7, 8), four intermediate necks (9, 10, 11, 12), two cheeks (13, 14) and a separator (23).

The main journals are designed to install rolling bearings in the compressor housing. The connecting rods are designed to connect the crankshaft and connecting rod. Cheeks connect connecting rod necks.

The crankshaft (figure 1) contains an oil channel containing several communicating straight branches (not specified). The oil channel is designed to supply oil to the working rubbing surface of the main (1, 2, 3, 4), connecting rod necks (5, 6, 7, 8) and intermediate necks (9, 10, 11, 12), which enters through the central hole (24) from the side of the lubrication system and is distributed through the oil channel system.

At the end of the crankshaft are four through-center holes (24), one of which acts as an oil channel (Fig.1, 3). All outlet openings of the oil channels (19, 20, 21, 22) are located at the most remote points from the axis of the center of rotation of the crankshaft, the distance of which is 105 mm., At all four points. (figure 2). The direction of the holes of the oil channels is arranged so that during operation, when the crankshaft rotates, the lubricant under the influence of inertia abundantly enters the friction zone. In older designs, the oil channels are located at an angle of 90 and 68 degrees with respect to the horizontal and vertical plane, and the claimed utility model channels (not specified) are located on the same plane in a straight line as the outlet openings (19, 20, 21, 22 ) (Figs. 1, 2).

At the end of the crankshaft are four center holes (25) at a distance of 55 mm, designed to install the crankshaft on the machine (figure 3). The holes are intended for the manufacture and subsequent restoration of the surfaces of the connecting rod journals (5, 6, 7, 8) after their wear.

The inventive crankshaft of a four-row opposed compressor is implemented using industrially produced devices and materials, can be manufactured at any machine-building enterprise and will be widely used in all areas of activity where conversion of rotational motion of the crankshaft to reciprocating crosshead or piston is required.

Claims (3)

1. The crankshaft of a four-row opposed compressor containing the main journals, connecting rods, intermediate necks, cheeks, a separator, an oil channel, consisting of communicating straight branches, characterized in that the lubricant for the friction surfaces of the connecting rods and rolling bearings on the main journals flows the central hole from the side of the lubrication system and is distributed through a system of oil channels, abundantly entering the friction zone under the influence of inertia during operation, while the whole weekend the holes of the oil channels are located at the most remote points from the axis of the center of rotation of the crankshaft, and the direction of the oil channels is located on the same plane and in a straight line as the outlet holes. 2. The shaft according to claim 1, characterized in that at the end of the crankshaft are four center holes designed to install the crankshaft on the machine. 3. The shaft according to claim 1, characterized in that at the end of the crankshaft there are four through center holes, one of which acts as an oil channel.

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