SU863912A1 - Universal joint - Google Patents

Description

(54) UNIVERSAL HINGE

one

The invention relates to mechanical engineering and can be used when connecting shafts with intersecting axes.

A universal hinge is known, comprising female and male elements whose working surfaces have straight linear longitudinal axes with longitudinal axes parallel to the longitudinal axis of the hinge, as well as intermediate elements 1 located between them.

A universal hinge is known, comprising the working surfaces of one of which covers and encompasses elements, are spherical, and the other with straight linear longitudinal generators parallel to the longitudinal axis of the hinge, and intermediate elements 2 located between them.

A disadvantage of the known structures lies in their limited operational capabilities due to the small allowable angle of rotation of the female and male elements.

The purpose of the invention is to expand the operational capabilities by increasing the permissible angle of rotation of the female and male elements.

This goal is achieved by the fact that each intermediate element is made in the form of two liners adjoining each other along a curvilinear surface, and the female and female elements are installed with the possibility of rotation relative to the center of the spherical and axis of the curvilinear surfaces of the liners.

Inserts are coupled to each other along a cylindrical surface, the axis of which

10 is perpendicular to the transverse axis of the joint diametrically opposed to the center of curvature of the spherical working surface.

FIG. 1 shows a hinge with a coaxial j arrangement of the longitudinal axes of the female and male elements, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 - hinge with the distortion of the longitudinal axes of the female and male elements.

Universal joint consists of

Claims (2)

20 covering element in the form of a sleeve 1, on the inner surface of which circumferentially spherical cavities are made with center O, radius of curvature R} displaced from the longitudinal axis of the hinge by the amount B, and male element in the form of a rod 2 with a rectangular cross section between which liners are installed 3 and 4, adjoining each other along a cylindrical surface with a center Oi of radius of curvature RI. The liner 3 is mated with the spherical cavity of the sleeve 1, and the liner 4 is mated with its straight-line section with the straight-line surface of the rod 2. The radius RI is less than the radius R, that is. The rod 2 has a cavity 5 and the channels 6 are coaxial with channels 7 and 8 made in the liners 3 and 4 with coaxial arrangement of the longitudinal axes of the sleeve 1 and the rod 2. The cavity 5 and the channels 6 8 serve to supply lubricant to the junction points of the rod 2 and the insert 4, the liners 3 and 4, the insert 3 and the sleeve 1. When rotation of the longitudinal axis of the rod 2 relative to the longitudinal axis of the sleeve I (figure 2) rod 2 turning aets from the center of Gr 0 | along radius R (together with inserts 4 and 3 in sleeve 1 and together with another opposite insert 4 turns in insert 3 along radius Rj, with the transverse axis and rod 2 intersecting the attachment and longitudinal axis of sleeve 1 at the point a located to the right of the center O of the hinge and the longitudinal axis of the rod 2 intersects the longitudinal axis of the sleeve 1 at point a, halving the ° С angle between the transverse axes of sleeve 1 and sterile 2 with liners 4. The other two liners 4 located at an angle of 90 ° viewed in the plane of rotation of the hinge ( Fig. 2) Povora are also connected together with the rod 2, but relative to the transverse axis of the hinge, while the rod 2 is displaced slightly upwards with respect to the liner 4, since the longitudinal axis of the rod 2 intersects the transverse axis of the bushings 1 at a point located slightly above the center O of the hinge. a small displacement is made a gap 9 between the inserts 4 adjacent to each other along lateral longitudinal surfaces. As a result of the interaction of the inserts 3 and 4 with each other with the sleeve I and the rod 2, the loading force during transmission to ut Sheha torque between the sleeve 1 and the rod 2 acts in a plane intersecting the center Og O and bisecting the angle A between the transverse planes of the rod and the sleeve 2 with insert 4 (in the bisector plane passing through the center OjOi. As a result, the angular velocities of the bushings 1 and the rod 2 are equal, and the dynamic balance of the hinge is also high enough. Claims of the Invention: A universal hinge comprising enveloping and encompassing elements, the working surfaces of one of which are made spherical, and the other with straight linear longitudinal forming elements and intermediate between them, parallel to the longitudinal axis of the hinge, characterized in that expanding operational capabilities by increasing the tolerance. y rotation of the enclosing angle of rotation of the enclosing and covered elements, each intermediate element is made in the form of two liners adjacent to each other along a curved surface, and the female and covered elements are installed rotatably relative to the center of the spherical and axis curved surfaces of the liners . 1, wherein the qjo liners are interconnected along a cylindrical surface, the axis of which is perpendicular to the transverse axis of the hinge diametrically against bying spherical center of curvature of the working surface. Sources of information taken into account during the examination 1. USSR author's certificate No. 697755, cl. F 16 C P / 06 1979. 2. USSR author's certificate number 327699 -kl. F 16 D 3/20 1972. CQ cci