SU1040240A1 - Assembly for axial fixation of two parts - Google Patents

Description

The invention relates to mechanical engineering and can be used in all areas of the national household. to ensure reliable axial fixation of the two parts. The known node of axial fixation of the female part with respect to the male part, containing a locking element made in the form of fingers, placed in the radial holes of the male part with the possibility of its ends interacting with the internal surface of the female part, as well as the mechanism for fixing the locking element in the working position, made in the form of a screw with a tapered end, screwed into the axial threaded hole of the male part, communicating with the radial holes of the female part, with the possibility of The interaction of the conical surface with the ends of the fingers 1. The disadvantage of this known device is that it cannot provide perception. large axial forces, since fixation, is carried out only due to the forces of friction between the ends of the fingers and the inner surface of the spanning body. In addition, the need to make a hole for the fingers on the male part complicates the design of the device and increases the complexity of its manufacture. The closest to the technical essence of the invention is the axial fixation of two parts, comprising a male and female parts, a fixing element placed in aligned annular grooves made on the outer surface of the male part and the internal surface of the female, and a fastening mechanism of said fixed element in working position 2. A disadvantage of the known device is the difficulty of its installation and disassembly, the need to use any additional devices in order to unclench the ends of the fixing element when installing or removing the fastening mechanism. The aim of the invention is to simplify installation and disassembly. This goal is achieved by the fact that, in the axial fixation unit of two parts, comprising a male and female parts, fixings, an element placed in aligned annular grooves made on the external surface of the male and internal surfaces of the female parts, and a fastening mechanism for said fixing element in the working position, the locking element is made in the form of at least two arcuate liners with a bent end hinged in a recess made on: one of the side walls to the annular groove of one of the fixed parts, in this part there are threaded holes arranged parallel to the longitudinal axis of the fixed parts and communicating with their annular grooves, and the fastening mechanism of the fixing element in the working position is made in the form of threaded fasteners screwed into the said threaded holes with the possibility of their side surface interacting with one of the cylindrical surfaces of the arcuate liners. .In FIG. 1 shows an axial fixation unit of two parts assembled (a variant of placing a fixed member of its element and a mechanism for fixing it in the working position in the male part) v in FIG. 2 shows section A-A in FIG. 1} in FIG. 3 is a view of B. in FIG. 1; FIG. 4 shows the Vna view of FIG. Hz in FIG. 5 - node of the axial fixation of two parts in the assembly {option to place the fixing element and the mechanism for fixing it in the working position in the female part /; in fig. 6 - section G-Y in FIG. five. . The axial fixing unit of the two parts comprises the female part 1 and the male part 2, on the adjoined surfaces of which the combined annular grooves 3 and 4 are provided. the end b, pivotally mounted in the recess 7, is made on one of the side walls of the annular groove of one of the details. In this part there are threaded holes 8 arranged parallel to the longitudinal axis of the fixed parts and communicating with the annular grooves 3 and 4 in which the threaded fasteners 9 are placed. interacting with their lateral surface from one of the cylindrical surfaces of the arcuate liners 5. In one of the fixed parts, mounting holes 10 are made to allow arcuate inserts 5 to be exposed to a tool, such as a screwdriver. The device works as follows. The arcuate liners 5 are mounted with their bent ends at their recesses 7 and are pressed against the cylindrical surface of the annular groove facing the cylindrical surface of the fixed parts, in which the bent ends are installed. and 4. By turning around the bent ends, the arcuate liners are inserted into the annular groove of the adjacent part and secured in this position with threaded fasteners 9. disassembling the connection

removed, the arcuate liners return to their original position and the parts freely move one relative to another.

The proposed device, in comparison with the known, provides reliable axial fixation of parts, has a simple construction and allows to simplify the assembly and disassembly of the joint, which is especially important during repair. In addition, the use of special steels and their heat treatment are not required to manufacture the locking element.

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Claims (1)

(5'7) AXIAL FIXING ASSEMBLY OF TWO PARTS, containing male and female parts, fixing · element placed in combined annular grooves made on the outer surface of male and female surfaces of female parts, and the fixing mechanism of said fixing element in working position, different the fact that, in order to simplify installation and dismantling, the fixing element is made in the form of at least two arcuate contributions • with a bent end pivotally mounted in a recess made on one of the side walls of the annular groove of one of the parts to be fixed, threaded holes are made in the said part located parallel to the longitudinal axis of the parts to be fixed and communicating with their ring grooves, and the fixing mechanism of the fixing element in the working position is made in the form of threaded fasteners, screwed into the aforementioned threaded holes with the possibility of interaction with their lateral surface ^: from one of the cylindrical surfaces of the arched liners.