SU1712688A1 - Detachable part joint - Google Patents

Description

The invention relates to mechanical engineering and can be used to connect parts that perceive static and alternating loads in both axial and torsional, and in arbitrary directions.

The aim of the invention is to increase the reliability of the connection and improve the accuracy of the statement.

FIG. 1 shows the connection, view: FIG. 2 — details of the joint before assembly; in fig. 3 - the moment of assembly;

A detachable connection of parts consists of a female part 1 (Fig. 1) with an installed: a secondary bore 2. The male part 3 is in the form of a finger with an annular groove 4 and a collet shank 5 with a bore 6. which is provided with a rod 7 with a conical

The head 8, on the tapered surface of the opening 2 of the female part 1 and on the external surface 9 of the collet shank 5 of the female part 3 are respectively annular grooves and protrusions made freely interacting with each other. In connection the rod 7 is threaded, female part 1 made with Additional run-in tapered hole 10. coaxial with the specified mounting hole 2, the end face of the male part 3 has a mounting conical surface 11, the counter surface the lead-in cone of the female part 1, and the free end

12tsang 5 and edges of the hole 6 of the male part 3 are made with lead-in chamfers

13 and 14. The corresponding, respectively, conical surfaces of the inlet 10 of the female part 1 and the head 8 of the rod 7, wherein the aperture 6 of the male part 3 is made stepped with a smaller threaded stage 15, the counter thread of the rod 7, and the protrusions and grooves covering 1 and the female 3 made screw.

The assembly of the compound is carried out as follows. The male part 3 is taken (FIG. 2) and the lead-in chamfer 13 is guided in the direction of the arrow A to the lead-in conical surface. 10. Through the run-in conical surfaces of parts 3 and 1, they are pre-centered. After that, the male part 3 is screwed into the female part 1 due to the presence on the outer surface 9 of the collet 5 of the male part 3 and on the conical surface of the hole 2 of the female part 1 of the helical ring grooves and protrusions of pores until the conical surfaces of the parts 3 and 1 are closed, As a result, the final centers 1 of the parts and 3 are made. Then, in the direction of the arrow B, the threaded rod 7 with the conical head B (Fig. 3) is inserted into the stepped hole B of the male part 3 and screwed it into the screw Verstov 15 of the male part 3 there as long as not selected clearance between the female protrusions and depressions 1 and 3 of the male parts (Fig. 1).

The connection works as follows .OM. When applying an axial load (not shown), for example, to the female part 1 (FIG. 1) for removing it from the male part 3, its weakened cross section (not shown) along the annular groove 4 of the collet shank 5 is reinforced with a threaded rod 7 with a conical head 8 placed in the hole 6 and secured in the threaded hole 15 of the male part 3, and with the opposite axial load applied to the female part 1 (not shown), the conical surfaces of the holes 1 and 3 interact. clockwise (not shown), for example, to the female part 1 relative to the male part 3, the lateral, screw, annular surfaces of the protrusions and depressions of the parts 1 and 3 and their conical surfaces of the holes interact with each other when the torque is applied counterclockwise (not shown) to female part 1 relative to

the covered part 3 interact side screw annular surface of the protrusions and depressions of parts 1 and 3, in which the gap is selected during assembly, which allows

connection to perceive the torques of an arbitrary direction. When applied to parts 1 and 3 alternating loads, the connection works in the same way as in the upstream cases.

Due to the fixing of the rod 7 in the threaded hole 15 of the male part 3 and the placement of the conical head 8 of the rod 7 in the hole 6, the connection can also perceive vibration loads, since

There is no direct interaction of the conical head 8 of the rod 7 with the female part 1.. .

Thus, the proposed detachable connection parts can work in

different loading conditions, providing increased reliability and increased accuracy of setting, compared with the known prototype.

Claims (1)

Invention Formula A plug-in connection of parts comprising a female part with an installation tapered bore, which encloses a part in the form of a ring with an annular groove and a Collet Shank with a hole in which a rod with a conical head is placed, on the conical surface of the hole of the female part and on the external surface of the collet of the male part, there are respectively annular grooves and protrusions adapted to freely cooperate with each other, characterized in that and improve the accuracy of the production, the rod is made threaded, the female part is made with an additional inlet conical hole coaxial with the specified installation hole, the end of the finger of the male part has an installation conical surface that responds to the surface of the internal conical hole in the female part, and the free end of the collet and edge of the male part are made with inset chamfers, response, respectively, the conical surfaces of the inlet hole of the female part and the rod head, the hole covering my parts formed stepwise with at threaded step, counter-threading rod, and the protrusions and grooves covered by parts made screw. . 10,153 Fig, / (fue.Z (