SU559050A1 - Shaft Coupler - Google Patents

Description

(54) DEVICE FOR CONNECTING SHAFTS

This is achieved by the fact that the casing and the rolling bodies are made with coaxial holes, the axes of which are located in a common plane perpendicular to the axis of the device and are equipped with springs installed in said coaxial hole x.

FIG. 1 shows a device for connecting shafts, executed in the form of a spindle of a rolling mill.

FIG. 2 is a longitudinal section according to A-A in FIG. one; in fig. 3 is a cross-section along BB in FIG. one; in fig. 4 - the body is rolling in the plane of its rolling over.

The device consists of two spindle heads 1 and 2, which compensate for the misalignment of the shafts, and an i-shaft 3, connecting heads

The head 1 consists of a body 4, into which a crosspiece 5 is inserted. The body 4 and the crosspiece 5 are in contact with each other by projections through intermediate rolling bodies 6, which are supported in the initial position by springs 7 aligned in coaxial holes a and b of the body and those rolling . The cavity between the housing 4 and the crosspiece 5 is sealed by an oil-tight casing 8. Inside the hub of the cross 5, the end of the work roll 9 is inserted with a guide cone 10, which centers the hub during the transfer of rolls. head 1 only because the end of the roll has no guide cone,

In the body and the cross, two flat or curvilinear with a radius of rare earth metal are supported on the surface {B and D, between which intermediate rolling bodies with radii of curvature RI are installed with rolling direction w, pains half the size of their cross section. Therefore, such rolling bodies have a non-circular shape. Springs 7 are provided for keeping them in the nominal operating position.

When the left and right joint are operating, the contact surfaces B and D of the element related to the spindle shaft perform constant oscillatory movements, the magnitude of which depends on

the skew angle or misalignment of the axes of the connected shafts and the distance of the contact surface from the axis of rotation.

As a result, the intermediate contact bodies mainly roll over the supporting surfaces C and D with slip at every moment, the magnitude of which in any case does not exceed the allowable amount of slip in the gears.

In connection with the assembly, the intermediate rolling bodies occupy the full working position under the influence of elastic springs 7 located in coaxial branches xa and b. These same forces prevent the rolling bodies from deviating from their nominal position during operation during short-term opening of the contacting surfaces, which may occur due to uneven rotation, vibrations, etc.

The proposed connection has, compared to the used tasks of friction - sliding, a significantly smaller loss of energy to overcome the forces of friction, since the main type of movement of the working bodies is rolling, not sliding; a significantly higher durability due to the non-circular pharma body of rolling due to which it is possible to dramatically increase the rolling radii without increasing the dimensions of the joint.

The productivity of rolling mills is increased by reducing the turnaround time to change liners.

Expensive copper alloys are not required for the manufacture of new compounds.

The presence of special springs that hold the intermediate rolling bodies in the nominal operating position will, according to preliminary data, increase the connection durability by more than 2 times.

Claims (2)

1. Korolev A.N. Bnstruktsi and calculation of machines and mechanisms of rolling mills, M., 1969, p. .194. 2. USSR author's certificate N 198844, iK.K.4. F 16 D 3/24 dated 1967  / 1 t F (4d.2