SU1518586A1 - Slip coupling - Google Patents

Abstract

The invention relates to mechanical engineering and is used to protect high-speed machine drives from overloads. The purpose of the invention is to increase reliability in operation. The drive half coupling in the form of the hub 1 and flange 2 is connected to the driven coupling half (VP) 3 balls (W) 5, which are pressed in the slots VP 3 by an elastic link 8 through additional balls 6. The means for switching on and off the coupling consists of an elastic rim 9, arcuate plate springs 10 and centrifugal blocks (CC) 11. When torque is transmitted, the rim 9 takes the form of an ellipse under the action of CC 11. Springs 10 receive an additional deflection in the direction of W 5. When clutch 5 activates, they go out of the VP 3 sockets and act on springs 10, which deflect to the balls 6. As a result While the CC 11 continues to act on the rim 9, the latter holds the springs 10 in the position they received. The effect of the elastic link 8 on W 5 to the stopping of the leading half-coupling is eliminated. 3 il.

Description

The invention relates to machine-swamping and can be applied to P1: saving high-speed drives of machines from overloads.

The purpose of the invention is to inflate

Figure 1 shows the proposed, General view, partially longitudinal section; in FIG. 2, the same with

coupling operation; in FIG. 3, section A-A in FIG. 1,

The coupling contains a coaxially arranged drive half coupling in the form of a hub with a flange 2 and loosely installed on the hub 1 driven coupling half with sockets, a pair of diametrically disposed in the holes 4 and sockets of the connecting balls 5, a pair of additional balls 65 installed

the wells of the pressure disc 7 elastic ZAena 8, a means of automatically switching on and off the coupling, made in the form of a concentric

i4Ho to flange 2 and fixed to: m elastic rim 9 ,,; arcuate

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w astine springs 10 and centrifugal pads 11. On the flap nce 2 in mutually perpendicular planes are made (we have diametrically located radial grooves 12 and 13. Additional balls 6 are located in grooves 12 coaxially with balls 5. Between balls 5 and 6 is a bulge The springs 10 are mounted to the balls 5. One end of the spring is pivotally fixed to the rim 9, e) the other end is in the hub 1. Thus, the connecting balls 5 are pressed into the slots of the coupling half 3 through the spring of the springs 10, the balls 6 are elastic 8. In the sockets 13 installed k L (1) dki 11 with the possibility of interlocking mode in | 1 with rim 9,

The clutch works in the following way. In torque transfer mode & the leading and driven 3 coupling half-xf) oHHo rotate (Fig. 1), connected by unification balls 5. Columns 11 under the action of centrifugal force n & go in the extreme radial, floor, grooves 13 (fig. 3), in which the elastic bezel under their influence is elastically deformed, taking the shape of an ellipse and locking connecting shears 5 in the slots of the driven half-coupling of the additional deflection of the arcuate-re-lamellar springs 10 in the direction of the half-coupling 3.

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five

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five

When overloaded, the stopper is aware of the coupling half 3. The hub 1 and the flange 2 continue to rotate. In this case, the connecting balls 5 are pressed into the holes A of the leading half-coupling, the bending of the elastic arcuate springs 10 in the direction of compression of the spring of the elastic link. The elastic rim 9 absorbs the deformation in the direction perpendicular to the movement of the centrifugal pads 11 at the time of the expansion of the springs 10, which causes the displacement of the latter to the center of the device by an amount sufficient to fully distribute the springs. 10. Subsequently, the springs 10 bend toward the elastic link 8 and are fixed in this position by the flexible rim 9 deformed by the action of centrifugal blocks 11. Thus, the coupling halves are completely disengaged.

When turning off the drive, the centrifugal force acting on the pads 11 is reduced to a certain value at which, under the action of the spring of the elastic link 8, all the structural elements return to their original position, i.e. the working position is automatically restored.

Thus, the linear connection of the connecting balls with the elastic link and with the means of engagement performed by the centrifugal-elastic increases the reliability of the coupling as a whole, its durability.

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the invention

Overload coupling comprising coaxially disposed a driven clutch half with the slots and leading coupling half in the form of a hub and a flange with radial slots, connected by balls pressed against the sockets of the driven coupling part by an elastic link through additional beads associated with a resilient element, and means incorporating clutch with centrifugal pads, characterized in that, in order to increase reliability of operation, the grooves in the flange are located in two mutually perpendicular planes, the means of insertion is made in the form of an elastic baud and arc-shaped leaf springs, the rim is mounted concentric with the flange and connected to it, additional balls are aligned with the diameter

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Claims (1)

Claim A safety coupling comprising a coaxially driven driven coupling half with sockets and a driving coupling coupling in the form of a hub and a flange with radial grooves, connected by balls pressed to the slots of the driven coupling half by means of an elastic link through additional balls connected to the elastic link, and also means for engaging the coupling with centrifugal blocks characterized in that, in order to increase the reliability of operation, the grooves in the flange are located in two mutually perpendicular planes, the switching means is made in the form of an elastic rim arcuate plate springs, the rim is mounted concentrically to the flange and connected to it, additional balls are aligned with the diameter of 5 but placed connecting balls in one pair of grooves, centrifugal blocks are arranged to interact with the rim in the other pair of grooves, and plate plugs are installed in the grooves between the connecting and additional balls, convex to the connecting balls and connected at one end to the rim and the other to the hub.