SU1471009A1 - Connecting link for round-link chain - Google Patents

Abstract

The invention relates to general engineering and can be used in the traction organs of mining machines and mechanisms. The purpose of the invention is to increase the reliability of the connecting link by ensuring reliable locking of the lock on the bracket with transverse loads. The connecting link contains a C-shaped bracket 1 and a lock 2 in which clamps 5 are held, held in roller 2 by rings 9. The lock 2 put on the bracket is locked with a spring pin 3. The distance between the axes of the holes for clamps and the spring pin is selected within 0 , 8 ... 1.4 radius of the hole for the clamps. Since the surfaces 13 of the clips 5 in the offset hole 8 form a recess, no forced dilution of the clips 5 is required when installing the spring pin 3. Removing pin 3 is eliminated. 1 Cp. File, 7 ill.

Description

2

The invention relates to general engineering and can be used in traction on the arches of mining machines and mechanisms.

The aim of the invention is to increase the reliability of the connecting link by providing a more reliable closure of the lock on the bracket j under transverse loads.

Figure 1 shows the connecting link, top view; Fig. 2 shows the node I in Fig. 1 (in the closed state of the lock on the bracket); fig. 3 - the same with the lock open; 15 in FIG. 4 is a section A-A in FIG. Fig. 3 shows an embodiment of the clips with their retention in the hole by means of elastic rings; Fig. 6 shows the arrangement of parts in the open and closed 20 states of the lock on the bracket when the axis of the spring pin is displaced relative to the axis of the latch by a value of 0.8 of the radius of the aperture of the clamps; Fig.7.5, which are in contact with the spring pin 3 corresponding to its outer profile, makes it possible to eliminate its contact.

The link is disconnected in reverse order: first, the spring pin is removed, and then the lock is knocked from the bracket with a hammer.

When the lock is moved from the open to the closed state, it is almost impossible to drive the spring pin into the lock hole because of the stop of the spring pin in the clamps according to their diameter, since only the forces P directed towards their center act on the clamps when driving. In order to prevent this from happening, it is necessary to shift the hole for the spring pin so that the shadow spaces (surfaces &) disappear. In this case, when the spring pin is driven into the hole, the total forces P, acting on the latches, appear

the second extreme position, when the 25 open-hole components of P, displace-j

These clamps are along the axis by the value of a / 2, as a result of which the spherical surfaces of the xators enter the recesses of the bracket and lock the lock on the bracket.

The scheme of action on the locking force when locking the lock, shown in Fig. 7, shows that the force of movement of the locking mechanism of the DF is less than the radial forces of Rp, therefore it will be difficult to close the lock even with a hammer.

The spring pin is offset by 1.4 R.

The connecting link consists of a clamp 1, a lock 2 and a spring pin 3. Inside the lock 2 there is an opening 4, in which clamps 5 are coaxially placed, with spherical heads C 6 into holes 7 on the ends of the bracket 1 and contacting opposite ends with a spring pin. 3 located in the opening 8. The retainers 5 are kept in the opening 4 of the lock 2 from falling out by spring 9 or elastic 10 rings, set 35

Claims (2)

1. A circular link connecting link consisting of a C-shaped bracket located in a groove between the ends of the C-shaped lock bracket with an axially fixed locking assembly containing two clamps and an elastic element between them, as well as made at the ends of the ends of the C-shaped bracket of the hole for accommodating clamps, characterized in that, in order to increase the reliability of operation, an additional through hole is made in the lock, the axis of which is perpendicular to the opening of the clamps about the node and is displaced in the direction opposite to this axis, the elastic element is designed as a spring 31471009 pin and installed in an additional the holes, and the end surfaces of the retainers, which have the ability to interact with the spring pin j, are filled with corresponding to its external profile. 2. A connecting link according to claim 1, characterized in that the distance between the axes of the holes for the retainers and the spring pin is selected within 0.8 - I, 4 of the radius of the holes for the retainers. 1 Fi.CH U 2 ft / l ya i j h ya n /four Fe / g. , Editor G. Volkova Compiled by N.Gershanova Tehred L. Oliynyk Proofreader E. Lonchakova Zakae 1573/41 Circulation 721 VNIIPI State Committee for Inventions and Discoveries under the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk iab, 4/5 FIG. B F1 / g7 Subscription