RU2520703C2 - Mechanism for conversion of reciprocal motion into oscillatory motion of driven member - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: invention refers to machine building, namely to mechanisms for the conversion of reciprocal motion into oscillatory one. The mechanism comprises a reciprocal motion source (1), two supports (5, 12), a swinging base (2) with a driven unit is installed on one of them and a lever (13) - on the other. The supports (5, 12) are interconnected by a driving member (4) which is flexible and is moving reciprocally.

EFFECT: increased efficiency factor and reliability of a mechanism, simplified design and expanded functionality of the mechanism.

7 cl, 8 dwg

Description

Technical field

The invention relates to the field of engineering, and in particular to devices for converting reciprocating motion into vibrational motion.

State of the art

The prior art device for reporting swinging motion disclosed in patent RU 2212293, published September 20, 2003.

The swinging roller table comprises a platform 1 with rollers 2, a swing mechanism consisting of a drive rotary shaft 3 with eccentrics 4 fixed thereon, covered by bearings 5 and external shafts 6, interacting with guides 7 made in the lower part of the platform 1, and a gear drive 8, a swing support made in the form of rollers 9 with flanges fixed at the end of the platform 1, and mounted on guides 10 of stationary frames 11 with the possibility of horizontal movement from hydraulic cylinders 12 located on the side thoron platform 1. The platform with rollers makes a movement from the uppermost position to the lowermost position while swinging the swing mechanism.

The disadvantage of this device is the complexity of the device and low reliability.

Closest to the claimed invention is a mechanism for converting reciprocating movements into oscillatory motion of the driven link, which is disclosed in the copyright certificate SU 353092, published on 09.29.1972.

The mechanism comprises a reciprocating source 1, two levers 2 and 3 on the hinged supports 4 and 5, an earring 6 connecting the levers, an engine 7 connected to the earring 6 by means of a screw 8 and an articulated clutch, as well as a driven link. Levers 2 and 3 oscillate. Earring 6 makes a reciprocating movement.

This mechanism has a low efficiency due to the presence of a large number of elements, the bonds between which cause significant losses of useful energy for friction.

Disclosure of invention

Thus, it is an object of the present invention to provide a mechanism in which the aforementioned disadvantages are eliminated, and to create a simple mechanism design.

The technical result is to increase the efficiency and reliability of the mechanism, simplifying the design of the mechanism, as well as expanding its functionality.

The specified technical result is achieved using a mechanism for converting reciprocating movement into oscillatory motion, containing a source of reciprocating movement (1), two supports (5, 12), one of which has a swinging base (2), and the other lever ( 13), interconnected by a drive link (4), making a reciprocating movement, and on the basis of (2) a slave unit is installed, and the drive link (4) is made flexible.

Preferred variants of the conversion mechanism in accordance with the present invention are given in the dependent claims.

In accordance with one preferred embodiment of the present invention, the slave assembly includes a lever with a load.

In accordance with another embodiment of the invention, the driven link is mounted on the base using an axis (8) mounted in the center of the base.

In accordance with another embodiment of the invention, the source of reciprocating movement is an electromechanical or mechanical drive.

In accordance with another embodiment of the invention, a damper spring (7) is provided in the support housing (12).

According to another embodiment of the invention, the base (2) is mounted on the support (12) by means of bearings (11).

In accordance with another embodiment of the invention, the axis (8) is mounted in bearings (10).

Brief Description of the Drawings

The present invention is illustrated by drawings,

where in Fig.1 shows a General view of the mechanism in equilibrium in the first phase;

figure 2 shows the operation of the mechanism at the time the start of movement;

figure 3 and 4 shows the operation of the mechanism in different phases of movement;

figure 5 shows the mechanism at the end of work;

figure 6 shows the base of the mechanism, left view;

7 shows the base of the mechanism, a top view;

on Fig shows the connection of one of the supports with a lever.

The implementation of the invention

The mechanism for converting the reciprocating movement into the oscillatory movement of the driven unit comprises a source (1) of the reciprocating movement, which is an electromechanical or mechanical drive. The mechanism also includes two supports (5, 12), on one of which a swinging base (2) is installed, and on the other - a lever (13), which are interconnected by a drive link (4) (Fig. 8), which returns - progressive movement, and on the basis of (2) a slave unit is installed. The drive link (4) is flexible and rigidly connected to the swinging base (2) by means of a threaded sleeve (9). The driven unit consists of a lever (3) with a load (6). The driven unit is mounted on the swinging base (2) using the axis (8) mounted in the center of the base (2). The specified axis (8) to reduce the load can be installed in the bearings (11). The swinging base (2) is mounted on the support (12) by means of bearings (10) (FIGS. 6 and 7). In the center of the swinging base, perpendicular to the axis of the bearings (10), bearings (11) are mounted on the upper and lower side of the base. An axle (8) is mounted in the bearings (11), on which a lever (3) is fixed with a load. In the housing of the support (12) a damper spring (7) is provided. Due to the fact that the drive link 4 is made flexible, its speed of movement increases and thus the efficiency of the mechanism increases, as well as the reliability of its operation. Due to the fact that the mechanism consists of a minimum number of structural elements that are easy to manufacture, the design of the mechanism is simplified. To reduce the impact of the swinging base (2), damper springs (7) are installed on its support (12), which perform the function of reducing the impact when the lower part of the swinging base approaches the extreme angular position.

The mechanism for converting a reciprocating movement into an oscillatory movement of the driven unit operates as follows.

In a static state (Fig. 1), the mechanism is in a state of equilibrium, i.e. drive link (4) parallel to the horizontal axis. Figure 2 shows the mechanism at the time of the start of work, the first phase of movement. The source (1) of reciprocating movements acts on the drive link 4 and moves it to its highest position to the top dead center (TDC). Due to the fact that the drive link (4) is connected to the base (2), the base sways, changing the angle of inclination and thereby makes an oscillatory motion. The angle of inclination is preferably 18 ° (FIG. 2) from the horizontal axis of the base relative to the equilibrium state (FIG. 1). In this position, the slave assembly mounted on the base (2) using the axis (8) also oscillates. The driven unit consists of a lever (3) with a load (6). In this position, the axis (8) also changes its angle of inclination. Moreover, due to the fact that the load (6) is located on the lever (3) mounted on the axis (8), due to the component of its gravity, the lever (3) can make rotational movements around the axis (8).

In the second phase of the movement, the source of movement (1) moves the driving link (4) to its lowest position to the bottom dead center (BDC), thereby changing the angle of inclination of the swinging base, preferably 18 ° above the horizontal axis (Fig. 3) relative to its position in state of equilibrium. Therefore, together with a change in the angle of inclination of the base, the axis together with the lever (3) also changes its angle. The position of the lever (3) in TDC and BDC is shown in FIGS. 2 and 3. At the end of operation, the drive link returns to its original position, namely, TDC, as shown in FIG.

The operation of the mechanism for converting the reciprocating movements of the driving link (4) into the oscillatory movement of the driven link, which is established on the basis, was described above. Moreover, the lever, which is the driven link, can also perform rotational movements.

Claims (7)

1. The mechanism for converting reciprocating movement into oscillatory motion, containing a source of reciprocating movement (1), two supports (5, 12), one of which has a swinging base (2), and the other has a lever (13), interconnected by a drive link (4), making a reciprocating movement, and on the basis of (2) a slave unit is installed, and the drive link (4) is made flexible. 2. The mechanism according to claim 1, characterized in that the slave unit includes a lever with a load. 3. The mechanism according to claim 1, characterized in that the driven link is installed on the base using the axis (8) installed in the center of the base. 4. The mechanism according to claim 3, characterized in that the axis (8) is installed in the bearings (10). 5. The mechanism according to claim 1, characterized in that the source of the reciprocating movement is an electromechanical or mechanical drive. 6. The mechanism according to claim 1, characterized in that a damper spring (7) is provided in the support housing (12). 7. The mechanism according to claim 1, characterized in that the base (2) is mounted on a support (12) by means of bearings (11).

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