SU1225951A1 - Shaft coupling - Google Patents

Description

This invention relates to mechanical engineering, in particular, to torque transmission mechanisms.

The purpose of the invention is to increase the reliability of the connection by creating a prestress at the ends of the shafts.

FIG. 1 shows the connection shaft, the first option; in fig. 2 - the same, the second option.

The joint contains a sleeve 1, of the circumference, then when the necks 2 and 3 are tightened, the ends slide along each other, wedging sleeve 1, and a tension occurs between both the shaft journals and the sleeve 1, and between the shaft ends. The presence of conical contact surfaces of the liners with the shaft sections allows, with a minimum ratio of the diameters of the necks 2 and 3 to the diameter of the shafts 1 and 2 (due to technological reasons), to be reduced by jUcAHncnnc V. LJlJf. t - -1

Vuishuyu rations 2 and 3 with conical sections of the joint in parts of the joint and with rafts 4 and 5 of the shafts b and 7, the tension star of the stresses in the shafts of nano 8, through which the necks 2 and 3 are pressed against each a friend, while between the elements of the link 8 and the shafts b and 7 in sections 4 and 5, inserts 9 and 10 of split rings with an inner conical surface are installed, and the ends of the shafts b and 7 are made with bevels 11 at an angle ct ,, a large friction angle.

Inserts 9 and 10 are installed with

With regard to the corresponding torques 20, the beams 11 of the shafts b and 7 are transmitted by bevels. 1. The hubbing bushings 1. the forces that are displaced in the first embodiment (Fig. 1) are fixed link 8 in the form of cap nuts, which are threaded to the bush 1. , and liners 9 and 10 are covered by cylindrical sleeves 12 and 13.

According to the second variant, the fixed link is 8

Licensed areas with different diameters It is also possible to create a guaranteed tension on between the sleeve 1 and the journals 2 and 3 of the shafts when the last link is tightened. The accuracy of the conical surfaces can be relatively low, since they serve to transfer axial forces, and not torque, by frictional forces. Torque

made in the form of flange glasses interconnected by studs 14. In the bottom of the glasses there are holes, which, like

axially and radially, are perceived by the sleeve 1 and the elements of the tension link 8.

When disassembling the joint, unscrew 25 or move the elements of the tension link 8, shift and disassemble the halves of the rings 9 and 10 and the sleeves 12 and 13, move the sleeve 1. After disassembling one of the shafts, it becomes possible to remove the sleeves

and in cap nuts in the first version-12. 13 and 1, elements of the link 8, i.e.

 f „„ - „., о rj з по. nail pa.chobpat connection.

one that is larger than the diameter of ends 2 and 3.

The connection shaft works as follows.

When assembling, the bevels of the 11 ends of the shafts b and 7 are coupled to the sleeve 1, they are pushed onto the necks 2 and 3, the shafts are tightened with the tension link 8. Since the angle ss is greater than the angle three

completely disassemble the connection.

Thus, the proposed connection provides tension both between the ends of the shafts and along the ends, i.e., a prestress is created, which eliminates backlash, bending of the ends of the shafts, thereby determining the reliability of the connection.

However, when tightening the necks 2 and 3, the ends slide along each other, wedging sleeve 1, and a tension arises both between the necks of the shafts and the sleeve 1, and between the ends of the shafts. The presence of conical contact surfaces of the liners with the shaft sections allows, with a minimum ratio of the diameters of the necks 2 and 3 to the diameter of the shafts 1 and 2 (due to technological reasons), to decrease by -1.

11 beams of shafts b and 7 are transmitted by bevels. The forces arising at the same time, displacing the shafts in the axial and radial direction, are perceived by the sleeve 1 and the elements of the tension link 8.

When disassembling the joint, unscrew or retract the elements of the tension link 8, shift and disassemble the halves of the rings 9 and 10 and the bushings 12 and 13, retract the sleeve 1. After removing one of the shafts, the bushings can be removed

12. 13 and 1, elements of the link 8, i.e.

12. 13 and 1, elements of the link 8, i.e.

by. nail pa.chobpat connection.

completely disassemble the connection.

Thus, the proposed connection provides tension both between the ends of the shafts and along the ends, i.e., a prestress is created, which eliminates backlash, bending of the ends of the shafts, thereby determining the reliability of the connection.

Compiled by V. Yudaeva

Editor G. VolkovaTehred I. VeresKorrektor A. Ferenc

Order 1931/23 Circulation 880 Subscription

VNIIPI USSR State Committee

 for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (2)

1. SHAFT CONNECTION, comprising a sleeve covering the necks of the connected shafts, a coupling member, inserts located between the corresponding shaft and the coupling member, characterized in that, in order to increase reliability, the shafts are made with bevels at the ends at an angle greater than the angle of friction , each neck is conjugated to the shaft by a conical section, and the inserts are made in the form of rings with an internal conical surface and are mounted on the conical section of the shaft with a gap relative to the end face of the sleeve facing it. 2. Connection by π. 1, characterized in that the coupling element is made in the form of glasses connected by threaded elements with flanges and holes in the bottom, the diameter of which is larger than the diameter of the neck of the shafts, and the liners are made split.