SU881422A1 - Clutch - Google Patents

Description

(54) COUPLING

I

The invention relates to mechanical engineering.

A clutch containing a ferrule, a sprocket, a wedging body mounted in a sprocket with the possibility of axial transmission is known. displacement relative to the holder together with an asterisk 11.

However, this coupling provides only the connection and separation of the shafts with the relative movement of the sprocket and the yoke.

A clutch containing a yoke, a sprocket with oppositely directed wedge working surfaces, spring-loaded wedging bodies mounted in a sprocket with the possibility of forced movement relative to the yoke and fixing them in a displaced position 2 is also known.

However, the functionality of this coupling is limited.,

The purpose of the invention is to expand the functionality of the coupling.

The goal is achieved by the fact that the coupling is provided with bearings arranged coaxially with the yoke, the inner diameter of which is equal to the diameter of the working surface of the yoke, and the wedge working surfaces of the sprocket are made in two unidirectional rows.

FIG. 1 shows the coupling, axial section; in fig. 2 shows section A-A in FIG. I; in fig. 3 - section BB on the fng. one; in FIG. 5. 4-6 are variants of the relative position of the cage and sprocket; in fig. 7 to 10 are embodiments of the coupling.

Coupling co4ep) kHT sprocket I mounted on one of the coaxial shafts, ferrule 2 on the other shaft, two rows of seizing bodies 3 and 4 with springs 5. In the sprocket I there are two rows of oppositely directed wedge working surfaces 6 and 7. Coaxially holder 2 in the case 8

, 5, rolling bearings 9 are installed. The diameters of the working surface 10 of the yoke 2 and the inner rings 11 of the bearings 9 are equal. The asterisk 1 together with the bodies of jamming has the possibility of axial movement. Each sprocket installation position

20 1 is fixed. Bearings 9 can be located both at both ends of the cage 2, and from one. They can be installed in pairs.

The clutch works as follows.

The bodies are seized 4 under the rolling bearing, and the bodies 3 are seated in the holder 2 (Fig. 1). When the sprocket 1 rotates clockwise, the jamming body 4 is wedged between the sprocket 1 and the inner ring 11 of the bearing, and the jamming 3 compresses the spring and disengages. At this time, the inner ring of the bearing rotates with the sprocket. The rotation of the holder 2 is transmitted.

When the asterisk rotates counterclockwise, the jamming bodies 4 are wedged, and the jamming bodies 3 are wedged between the asterisk I and the yoke 2.

By switching the coupling (Fig. 4), both rows of seizing bodies 3 and 4 are mounted on the working surface 10 of the yoke 2, and the rotation of the sprocket 1 is transmitted to the yoke

2 through the body of jamming 4 from the asterisk clockwise, and from the bodies of jamming

3- counterclockwise.

When the jamming bodies 4 are located on the working surface 10 and the jamming bodies 3 are located under the inner ring 11 of the rolling bearing (Fig. 5), the rotation of the sprocket clockwise is transmitted to the yoke 2, but not counterclockwise.

The fourth fixed position of the sprocket (Fig. 6) ensures the complete separation of the coupling, since the jamming bodies 3 and 4 are located under the inner rings 11 of the bearings 9.

If it is necessary to have only a part of the listed coupling options, the design of the coupling can be changed.

The clutch (Fig. 7) can work as reversible when the bodies are wedged under the cage, or as two overrunning clutches with opposite directions

k

P

eight

transmission of rotation, at the location of one of the bodies of jamming under any of the barners.

Coupling (fig. 8) can work as two

overrunning clutches with rotational transmission

opposite directions, while

coupling ensures complete disconnection

shafts.

The clutch (Fig. 9) can work as a reversible clutch when the bodies of jamming are located under the holder, as an overrunning clutch when installing the bodies of wedging 3 under the holder and completely disconnect the shafts.

The clutch (Fig. 10) works only as two overrunning clutches for transmitting rotation in opposite directions.

The proposed clutch provides the convenience of shifting and transmitting rotation in different directions.

Claims (2)

Invention Formula A clutch containing a yoke, a sprocket with oppositely directed wedge working surfaces, spring-loaded wedging bodies installed in a sprocket with movement 5 relative to the yoke, characterized in that, in order to expand its functionality, it is equipped with bushing positioned coaxially with the yoke, internal the diameter of which is equal to the diameter of the working surface of the yoke, and the wedge working surfaces of the sprocket are made in two unidirectional rows. Sources of information taken into account in the examination. Patent of Germany No. 1201624, cl. % 706 5 1966. 2. USSR author's certificate number 419656, cl. F 16 D 43/286, 1972 (prototype). // P ; 4-I FIG. 2 A1 U //// G /////// 7 bb U ////// 1 //// // U7 / Ш2ш, C ixix / FIG. W