DE3515815A1 - Conversion mechanism - Google Patents

Abstract

In summary, it is observed that the conversion mechanism according to the invention converts a reciprocating motion into a unidirectional rotary motion or a unidirectional rotary motion into an exactly linear reciprocating motion. The manner of conversion can be influenced by means of the constructional shape taken by the sine curves. The conversion mechanism is distinguished by optimum mechanical efficiency.

Description

Conversion gear

The invention relates to a conversion gear according to the preamble of claim 1.

The specified conversion gear should, on the one hand, have a linear movement into a rotational movement in the same direction or a rotational movement into an exactly Reshape linear movement in and out. On the other hand, it should have strokes produce different stroke lengths. These conversions should also start with a optimal mechanical efficiency.

It is known that to accomplish the task set on the Crank gear-based conversion gears are used.

However, the specific disadvantages are also possible of the crank mechanism (low mechanical efficiency, temporary inclination the connecting rod, only one stroke length).

The invention is based on the object of eliminating the disadvantages of the previous To bypass conversion gear.

According to the invention, this object is achieved in that in a housing four rotors are rotatably mounted and that in the center between the four rotors a cross head is installed so that it can be moved parallel to their axes of rotation can. The four rotors are mechanical through power transmission elements Unit connected that when only one rotor moves, all four rotors are the same Movement received in the same direction of rotation. In addition, are on the circumference of the rotors Intended use corresponding sine curves incorporated. In the diagonal axis cross The rotors have a cross head with four axes offset by 90 ° which four wheels are rotatably mounted. The crosshead engages with these four wheels into the four grooves of the rotors and together with these forms a mechanical one Unit.

The achievable advantages of the invention consist in particular in that a better efficiency is achieved by the force acting on the circumference of the rotors than with conventional conversion systems. be the corresponding shape of the sine curves Different stroke lengths can be achieved on the circumference of the rotors. In addition, the precise linear movement of the cross head makes it possible to z. B. in internal combustion engines, hydraulic motors, compressors or pumps, the bottom of the cylinder to seal and use them as additional.

Use expansion or compression space.

if larger rotors are used, the size of the rotors increases due to the design the crosshead and thus its weight. But about the to and fro masses To keep them as small as possible, the rotors could be arranged in pairs one behind the other will.

(Fig. 5 A, B) However, the cross head would be slightly pulled extend.

When using the appropriate rotors, several sinusoids could be generated or sine curves with different amplitudes can be plotted on the circumference. this would have the consequence that the speeds decrease, or different lengths of time Hube surrendered. (Fig. 6 A, 3 and 7 A, 3) The invention would be in a boxer construction particularly economical as the reciprocating masses and the number would reduce the number of components required.

Especially when used in two-stroke engines, Stirling engines, hydraulic motors, Pumps and seals would fully benefit from the specific features of the invention come for retribution. Without difficulty, several units can be combined into one 3lock unite.

An embodiment of the invention is shown in the figure t A, 3 im Section shown and is described as follows: The housing (1) enables the rotatable mounting of four rotors (2) (cylindrical shape preferred) and the iinear Move a cross head (3). On the right front side of the case A ring gear (5) is firmly attached to each of the shafts of the four rotors and through a toothed ring (6) mechanically connected to one another. On the circumference of the rotors are Grooves (preferably tooth groove) incorporated in the shape of a sinusoid. In these four grooves the cross head engages with four wheels (gearwheels preferred) and thus forms a mechanical unit with the four rotors.

FIG. 4 shows a rotor (2) with a sine curve incorporated on the circumference.

Figure 2 shows a cross head (3) with four rotatably mounted gears (4).

Transform the four rotors with their sine curves attached to the circumference the to and fro movement transmitted by the crosshead into a rotational movement in the same direction. This process can also take place in reverse order, so that from one rotational movement in the same direction becomes a reciprocating movement. aside from that These sine curves cause a smooth and flowing change in direction of the crosshead.

The crosshead has the task of (Fig. 2) the back and forth movement to transmit the four rotors or the rotational movement of the rotors in the same direction to convert it into an exactly linear back and forth movement.

The four gears on the four axes of the cross head (Fig. 2) a division of the forces to be transmitted is achieved. In addition, (conditional due to the rotating movement of the four rotors in the same direction) the acting on the cross head Torques distributed so that they cancel each other out.

There is therefore no torque acting on the crosshead.

The wheels of the cross head also enable low-friction transmission der srfte vJn and to the rotors.

In Fig. 3 the four wheels of the cross head are schematically on The wheel is projected and shows the force of the four sinusoidal curves (A, B, C, D) on the wheels.

- blank page -

Claims (3)

A n p r ü c h e 1. Conversion gear with four rotors and one Crosshead, which is a reciprocating motion in a co-rotating motion or converts a rotational movement in the same direction into a reciprocating movement, characterized in that four rotors (2) are rotatably mounted in a housing (t) are and become a mechanical unit by means of power transmission elements, that when only one rotor (2) rotates, all four rotors rotate in the same Direction of rotation obtained that in the axis center between the four rotors (2) a cross head (3, 4) is installed so that it can be moved parallel to their axes of rotation. 2 L: conversion transmission according to claim 1, characterized in that sine curves corresponding to the intended use are incorporated on the circumference of the rotors (2) are. 3. conversion gear according to claim 1, characterized in that the cross head (3, 4) has axes offset by 90 °, on which four wheels (4) can be rotated are gelled and that the cross head (3, 4) with these four wheels (4) so in the four Grooves of the rotors (2) engages that it forms a mechanical unit with them forms.