SU1726875A1 - Mechanism without connecting rod - Google Patents

Abstract

The invention relates to mechanical engineering. The purpose of the invention is to increase the reliability of the mechanism. When the gears 10 and 11 rotate, the slider 5 and the associated A. With it the rods 4, the pistons 3 begin to move up or down due to the interaction of the prisms of 7 fingers 8 with the surfaces of the V-shaped groove 6. When the slider 5 reaches the extreme upper or lower points, the slider 5 reverses the direction of movement. At reversibility of the mechanism of the piston 3. moving, the movement of the slide 5 through the rods 4 is transmitted. At the same time, the groove 6 interacts with the prisms 7 and turns them together with the pairs of gears 10 and 11 in different directions. 1 il.

Description

And figure 1

The invention relates to the field of mechanical engineering and can be used to convert rotational motion into reciprocating and applicable in the manufacture of volumetric piston machines: pumps, turbines, compressors, DVS. and etc.

A sinus link mechanism is known for converting the crank rotational movement into reciprocating linkage, comprising a crank, a slot with a groove, and a crank coupling interacting with it.

A cordless force mechanism is known for converting a reciprocating motion into a rotational one, comprising a housing with cylinders opposedly arranged in it, two crankshafts mounted therein, two gears mounted thereto, interconnected by a third wheel with an outer and inner rim, pistons and a slider rigidly connected with them with a perpendicular axle of the pistons, a groove in which crankshaft crankshaft axles interacting with at least one of them with a damping device Installed in the slide.

However, when the crankshaft axes are perpendicular to the axis of the slider slot, in the well-known pinless mechanism, a moment occurs when almost the speed of the pistons is zero, which leads to an increase in the coefficient of non-uniformity of the pistons. At this point, a significant force is required to ensure the linear movement of the pistons and, therefore, an increase in the radius of the cranks and the flywheel mass, which leads to an increase in friction between the crank journals and the surface of the slider groove, which means a decrease in the reliability of the mechanism.

The aim of the invention is to increase the reliability of the mechanism, which has a reduced coefficient of non-uniformity of movement of the pistons, which allows to reduce the mass of the flywheel.

This goal is achieved by the fact that the known mechanism is equipped with an additional pair of gear wheels, which are installed identically with fingers and eccentrically located on them, the groove in the slide is V-shaped with equal shoulders, and the fingers join in pairs the main and additional gear wheels , are installed in them with ends on bearings and are made in the middle part in the form of rectangular prisms for interaction with the surfaces of the V-shaped groove of the slide,

Figure 1 shows a general view of the mechanism with a removable side cover and cylinders cut along the diameter; figure 2 - section aa in figure 1.

The cordless mechanism includes a housing 1, in which cylinders 2 are opposedly mounted with pistons 3 placed in them, combined in pairs by rods 4 with a slider 5 with a through V-shaped groove 6, with equal shoulders, in which rectangular prisms 7 are placed, made on fingers 8 mounted on rolling bearings 9 located eccentrically in the body of pairs of main and additional gear wheels

10 and 11. At the end of the shaft 12 mounted flywheel 13.

When rotating pairs of gear wheels 10 and

11 drive (conventionally not shown) along arrows in fig. 1 prisms 7, made on fingers 8, rotate together with pairs of main and additional gear wheels 10 and 11 in different directions, while slider 5 and pistons 4 connected with it by rods 4 3, due to the contacts of the surface of the V-shaped groove 6 with the lower surfaces of the prism 7, begins to move down the drawing. When the slider 5 reaches the lowest point, the slider 5 begins to move upwards, and the slider 5 contacts the surface of the groove 6 with the upper surface.

When the mechanism is reversible, the pistons 3, moving down the drawing, transfer the movement of the slider 5 through the rods 4, and the groove 6, in contact with the prisms 7, rotates them together with the pairs of gear wheels 10 and 11 in different directions, using the inertial flywheel 13.

Formula and Crankless Mechanism, comprising a housing with opposed cylinders in it, in which pistons are located, a slider with a groove rigidly connected with them and two shafts with gears fixed on them wheels with the possibility of interaction of the latter, characterized in that, in order to increase reliability of operation, the mechanism is provided with an additional pair of gear wheels, installed identically with their fingers and located eccentrically on them, the groove in the slider is made V-shaped with equal shoulders, and the fingers Ina pairs are in pairs with the main and additional gears, mounted at their ends on bearings and made in their middle part as rectangular prisms for interacting with the surfaces of the V-groove of the slide.

FIG. 2

Claims (1)

Claim A rod-free mechanism, comprising a housing with cylinders opposite to it, in which the pistons are located, a slider rigidly connected to them with a groove and two shafts with gear wheels fixed to them with the possibility of interaction of the latter, characterized in that, in order to increase the reliability of operation, the mechanism equipped with an additional pair of gears mounted identically and with fingers eccentrically located on them, the groove in the slider is made V-shaped with equal shoulders, and the fingers are connected in pairs with the main and additional ADDITIONAL gears mounted therein on bearings at their ends and formed in its middle part in the form of rectangular prisms to interact with the surfaces of the V-shaped groove of the slider. ΑΆ