SU1520273A1 - Keyed joint - Google Patents

Abstract

The invention relates to a machine tool industry, in particular to tools for machine tools. The purpose of the invention is the expansion of operational capabilities. The connection contains a key, made in the form of two plates 1 and 2 of the type "comb" and expanding elastic elements 3 and 4. The supporting surfaces of the plates are made semi-cylindrical, while the plates are angled to one another. The length of the grooves of the plates forming the protrusions is selected from a predetermined ratio of its geometrical parameters. This embodiment of the key allows parts to be joined with both the same and different keyway widths. 3 il.

Description

/ 7

, /

The invention relates to a machine tool industry, in particular to tools for machine tools.

The purpose of the invention is to expand the operational capabilities by providing the connection of parts with both identical and different key grooves in width.

Fig. 1 shows the connection, the general VIEW; Fig. 2 shows the section A-A in Fig. 1 (operating condition) i in Fig. 3 shows the connection of parts with keyed grooves of different widths.

The keyed connection contains, a key made in the form of two plates 1 and 2 of the type of combs, two expansion elements 3 and 4 and two metal pads 5 and 6, which protect the expansion components against wear. The supporting surfaces of the plates are made, semi-cylindrical. The plates are angled to each other in such a way that the supporting surfaces of each of the plates are located in opposite corners of the keyway. The plates have grooves and protrusions. In working condition, the protrusions of one plate fit into the grooves of the other plate.

To ensure the operability of the key you need to withstand the dependence 1 -5- - the length of the groove (1)

, and .. more than half the width -) and

full thickness (b) plate,

Expansion elements 3 and 4 and steel linings 5 and 6 are installed in the keyway in one of the joints of these parts. The expansion element can

be made of elastic material

for example polyurethane.

Claims (1)

Invention Formula Key connection of parts, containing a key installed in the grooves of the parts to be joined, consisting of two mutually movable parts, the supporting surfaces of which are in contact with the bottom of the key groove and corresponding wall, as well as expanding elastic elements located between the supporting surfaces of the keys and the bottom of the keyways, characterized in that, in order to expand operational capabilities by providing parts with key grooves with the same or different widths, the component parts of the key are made in the form of Plaster-type plates with mutually overhanging protrusions, the supporting surfaces of each plate are made semi-cylindrical, and the length of the grooves forming the protrusions is selected from the following ratio  , where 1 is the length of the groove; a - plate width b - plate thickness. vf is §§1 closed at ХХХХу -9%: at av 2 ftis.J