BG65389B1 - Transmission wheel - Google Patents

Abstract

The transmission wheel is intended for work in gearings. It has increased functional capabilities. It consists of radially arranged supporting bushings (5) with outer surfaces (6) and inner surfaces (7) resting on bearings on an annular bearer (1). In the periphery of the supporting bushings (5) there are longitudinal openings (8) with elastic circular rings (9) resting on bearings therein and arranged over a toroidal surface (10). Through one of their surfaces (6, 7) the supporting bushings (5) rest on the respective curvilinear axle (4, 14). On the circular rings (9) there are mounted washers (11) with an external rim shaping a first working surface (2), while on the free portions of the circular rings (9) there is shaped a second working surface (12).

Description

Technical field

The invention relates to a transmission wheel of toroidal shape used in transmission mechanisms.

BACKGROUND OF THE INVENTION

A transmission gear wheel is known, consisting of radially spaced bearing bushings with outer and inner surfaces mounted transversely on a ring carrier. The bushes are mounted on separate tangential axes to the carrier connected to the gear housing. Radial pins are formed on the outer surface of each sleeve, on which rollers are mounted with an outer working surface [1].

This solution does not permit the transfer of torque between the carrier bushings, which bushings do not form a common toroidal surface for rotation about a circular axis, which limits its functionality.

SUMMARY OF THE INVENTION

It is an object of the invention to create a transmission wheel with increased functionality.

The problem is solved by means of a transmission wheel including radially arranged support bushings with outer and inner surfaces, which are mounted transversely on a ring carrier. According to the invention, there are longitudinal annular openings in the periphery of the bushings, in which elastic circular rings are arranged, arranged on a toroidal surface. Through one of their surfaces, the bushes support a curved axis. Circular rings are fitted with washers with an outer rim forming a first working surface, and a second working surface is formed on the free portions of the circular rings.

The circular rings have work sections with two-way symmetrical bevel relative to the diametrical surface of the ring.

The circular ring has arcuate compen sation located in the plane of the ring.

The circular ring is composed of two semicircular sections in cross-section and their slits are defaced 180 °.

The circular ring is sliding and consists of arched sections with openings in which the ends of a second group of sectors are axially bearing.

The washers have bilateral conical surfaces in contact with each other, and the circumferential section of the washers in radial sections has a bilateral annular rounding of a tooth profile forming a third working surface.

The edges of the curvilinear axis are axially spaced, whereby the circular rings have a helical shape.

The carrier sleeves may be radially elastic.

An advantage of the invention is its increased functionality, allowing rotation about a circular axis, increased number of work surfaces and flexible structure with variable shape.

Explanation of the annexed figures

Figure 1 is a side view of the wheel;

Figure 2 is a section through AA of Figure 1;

Figure 3 is a side view of the wheel in external bearing;

4 is a sectional view along B-B of FIG. 2;

5 is a longitudinal sectional view of the wheel of FIG. 3;

Figure 6 is a cross-sectional view of the wheel when engaged with a belt;

Figure 7 is a longitudinal section view of a wheel with circular rings having a profile section;

7A is a sectional view along the C-C of FIG. 7; Fig. 7c is a sectional view along E-E of FIG. 7;

Figure 8 is a longitudinal section view of the wheel with bearing bushings of circular rings;

Figure 9 is a side view of an inner elastic support;

Fig. 9a is a section through MM of FIG. 9; 9b is a sectional view along the N-N of FIG. 9;

Figure 10 is a cross-sectional view of a wheel with beveled washers;

Figure 11 is a segmental wheel support;

65389 Bl FIG. 12 is a longitudinal section in spiral shape;

Figure 13 is a cross-sectional view of a non-circular shaped support sleeve;

Figure 14 is a side view of a wheel with distant ends;

14a is a side view of the wheel of FIG. 14 with contacting ends;

Figure 15 is a cross-sectional view of a wheel with elastic bearing bushings deformed in different directions;

16 is a cross-sectional view of a wheel with an elastic bearing sleeve;

Figure 17 is a front view of a circular ring;

Figure 17a is a circular ring with an intermediate sleeve;

Figure 18 is a circular ring with arcuate compensating sections;

Figure 19 is a longitudinal section of a sliding circular ring;

Figure 19a is a longitudinal section view of a wheel with sliding circular rings;

Figure 20 is a cross-sectional view of a compound circular ring;

20a is a view along L of FIG. 20 of one half ring;

20c is a view along L of FIG. 20 on the second half ring.

Examples of carrying out the invention

The transmission wheel has radially spaced bearing bushings 5 with outer 6 and inner surfaces bearing on the annular carrier 1. In the periphery of the bearing bushings 5 there are longitudinal annular openings 8 in which elastic circular rings 9 and 10 are disposed. one of its surfaces 6,7 the bearing bushings 5 bear on a corresponding curvilinear axis 4, 14, formed on the carrier 1. On the circular rings 9, washers 11 are fitted with an outer rim forming a first working surface 2, and on the free portions of the circular finger 9 a second working surface 12 is formed. A protective housing 39 is provided.

In one embodiment shown in FIG. 1, 4, the bearing bushings 5 have an internal support surface 7 and are mounted on a toroidal inner axis 4 fixedly fixed to the housing 13.

In another embodiment shown in Figures 3, 5, the bearing bushings 5 have an outer support surface 6 and are mounted in openings on the outer axes 14. In one embodiment (Fig. 1), the inner axis 4 has a radial slot forming its ends. 15, and in another embodiment (Fig. 4), the ends 15 of the inner axis 4 contact each other.

In the exemplary embodiments of Figures 15, the circular rings 9 have a circular shaped working surface 12 in cross-section.

In the exemplary embodiment (Fig. 7), the circular rings 9 have working sections 45 with two-way symmetrical bevel 16 relative to the diametric plane 43 of the rings 9. The bevel 16, in one embodiment (Fig. 7a), has parallel walls, in another embodiment (Fig. 7c) has sloping walls, with a third a involute profile, etc.

In the exemplary embodiment of Figure 5, the working surface 2 is formed as an outer tooth ring of the washers 11.

In another embodiment (Fig. 8), bushings 17 are provided on the rings 9.

The circular rings 9, in one embodiment (Fig. 17), have a radial slot 18 defining their ends 3 and a circular cross-section along the entire length of the ring

9. Alternatively, (Fig. 17a), the ends 3 of the circular ring 9 are mounted in a sleeve 24.

The circular rings 9, in another embodiment (Fig. 20), are composite and have two sections 20, 20 with a semicircular shape in cross section, their slots 18 being defaced at 180 °.

The circular rings 9, in another embodiment (Fig. 19), are sliding and are made up of arched sections 21 with openings 22 in which the ends of a second group of sectors 23 are axially bearing.

Alternatively (Fig. 19a), elastic bodies 25 are arranged between the ends of the second group of sectors 23, e.g. springs.

The circular rings 9 (Fig. 18) have arcuate compensators 36 located in the plane of the ring 9 between the bearing bushings 5.

In another embodiment (Fig. 17), the circular rings 9 have axial release inner 34, optionally outer 35 with enlargement

65389 Bl of elasticity of rings 9.

The circular rings (Fig. 16) are enclosed by an elastic sleeve 33 of toroidal shape.

According to an exemplary embodiment shown in FIG. 11, the axes 4, 14 are segmental and comprise a portion of the circular surface of the wheel.

In another embodiment shown in FIG. 10, the washers 11 have bilateral conical bevels 26 which the washers 11 contact each other along the curved axis of the wheel. At the peripheral end of the washers 11, there are bilaterally shaped working surfaces 40 defining a tooth profile 27, capable of engaging with outer gear wheels 41 of a known kind.

According to an exemplary embodiment shown in FIG. 9, the inner toroidal axis 4 has longitudinally shaped lateral slots 28 along its length, between which there is a second group of slots 29, located 90 ° relative to the first slots 28.

In the exemplary embodiment shown in FIG. 12, the ends 15 of the inner axis 4 are axially spaced, wherein the elastic circular rings 9 have a screw shape 30.

In an embodiment (Fig. 15), the bearing bushings 5 are radially elastic and allow misalignment between the inner diameter d and the outer diameter D of the wheel, e.g. when rolling between two cylindrical surfaces - inner 31 and outer 32.

In the exemplary embodiment of FIG. 4, the bearing bushings 5 are axially circumscribed by support rings 37, and in FIG. 5 are limited by support rings 38.

Use of the invention

The rotation of the washer 11 also rotates the other washers 11 around the circular axis of the wheel by means of circular rings 9. When a circular ring 9 passes along the minimum diameter of the toroidal surface 10, its edges 3 are closest to each other, with the distance between they increase smoothly as the diameter of the rings 9 increases and again decreases as the washers rotate 11. The circular rings 9 bend in a diametrical plane 43 without rotating about their curved axis, whereby the diametric planes 43 of the circular rings 9 remain parallel to the diameter plane 44 of the wheel. This allows the working surface 12 of the circular rings 9 to be engaged with standard gears, rails, belts, and the like.

Another way of transmitting torque is by using the gear teeth of the washers 11 in engagement with gear elements of a known type, as well as with the gear teeth of the washers 11 of another transmission.

The wheel can be mounted between outer 32 and inner 31 (Fig. 14) surfaces of different diameters, in which the clearance between the ends 15 of the wheel is changed, which increases its functionality.

Bearing the bushes 17 on the circular rings 9 (Fig. 8) reduces friction on the circular axes 4, 14 and allows the wheel to be used as a rolling toroidal bearing.

The use of tapered washers 11 (Fig. 10) allows the wheel, as a whole, to rotate about its central axis 46, while engaging its peripheral portions 27 of its washers 11 with another gear 41.

In the spiral shape (Fig. 12), the circular rings 9 also have a spiral shape and rotate with the bearing bushings 5 around the spiral axis 30, increasing the engagement functionality. The spiral shape, when the inner axis 4 is not used, allows for axial force to operate as a spring set.

The elastic wheel structure (Fig. 15) allows a certain misalignment between the inner d and the outer D diameter, as well as the non-circular cross-sectional shape of the axle 4, according to FIG. 13.

The outer circular support 14 (Fig. 11) can be formed as a segment with a straight or spiral channel.

Claims (8)

Claims A transmission wheel comprising radially spaced bearing bushings with outer and inner surfaces transverse to the annular carrier, characterized in that there are longitudinal annular openings (8) in the periphery of the bushings (8), in which there are annular annular holes (9) located 65389 B1 on a toroidal surface (10), the bushings (5) being rotated by one of their surfaces (6, 7) rotationally along a corresponding curved axis (4,14), whereby washers (11) are mounted on the circular rings (9) with an outer crown forming a first work surface (2), and a second work surface (12) is formed on the free portions of the circular rings (9). Transmission wheel according to claim 1, characterized in that the circular rings (9) have working sections (45) with two-way symmetrical bevel (16) relative to the diametric plane (43) of the rings (9). Transmission wheel according to claim 1, characterized in that the circular ring (9) has arcuate compensators (36) located in the plane of the ring (9). Transmission wheel according to claim 1, characterized in that the circular rings are made up of two sections (19, 20) of semicircular shape in cross-section and their slots (18) are defaced 180 °. Transmission wheel according to claim 1, characterized in that the circular rings (9) are sliding and consist of arched sections (21) with openings (22) in which the ends of a second group of sectors (23) are axially bearing. Transmission wheel according to claims 1 to 5, characterized in that the washers (11) have bilaterally beveled surfaces (26) in contact with each other, and the circumferential section of the washers (11) has radially shaped teeth (27) ) forming a third working surface (40). Transmission wheel according to claims 1 to 6, characterized in that the ends (15) of the curved axis (4, 14) are axially spaced, whereby the circular rings (9) have a helical shape. Transmission wheel according to claims 1 to 7, characterized in that the carrier bushings (5) are elastic in the radial direction.