SU773978A1 - Device for connecting together radio electronic units - Google Patents

Description

one

The invention relates to radio engineering and can be used in the design of removable bridges and components subjected to dynamic loads.

A device for interconnecting blocks of electronic equipment is known, which contains a screw pair in the form of a hollow cylinder with an internal screw thread, in which 10 is moved by a pivoting axis with a radially spaced pin entering cut-in 1.

However, this device is difficult to maintain, because it is not up to fS to orient the key of the lock when it goes to the Closed position. In addition, there is no fixing accuracy when creating the necessary tension in the joint of the SRI, since the end part of the key 20 must occupy a well-defined position relative to the longitudinal groove, i.e. the fixing angle is 360.

It is also known a device for 25 interconnecting electronic equipment units, comprising a helical pair made in the form of a profiled cam radially placed on the shaft, and 30

counterpart, spring-loaded lock and swivel key, made in the form of a cylinder (21.

However, the known device has drawbacks, concluded that it is difficult to maintain, since it is difficult for the turning screw to be oriented with its cam in relation to the figure groove during disconnection of blocks. In addition, as the wear of the profile cam. and the counterpart can not be provided with a guaranteed connection | tension, since the fixation of the spring-loaded fixture is made; only for one position of the screw pair.

Purpose of the invention: review. . convenience of operation and reliability of fixation by providing a given pair of mating screw pair.

This goal is achieved by: In a known device for interconnecting electronic units, equipment containing a screw pair, made in the form of a profiled cam radially placed on the shaft, on the counterpart, a spring-loaded lock and a rotary key, made in the form of a cylinder, the shaft is made a conical shape, in one piece with a profiled cam, the mating part of the screw pair is made in the form of a clip with a hole, a fixed stop with a profiled and movable nut placed inside it, prverhnost and on the cylindrical rotary key formed diametrically disposed kangshka annular and longitudinal grooves, wherein a spring-loaded latch mounted inside neoftoiH., apovorotny key, with a hole placed in the cage reacting it with longitudinal grooves focusing ring and its koltseoy groove with the spring retainer.

Figure 1 shows the device, a general view; figure 2 - section aa, figure 1; Fig. 3 is a diagram of the assembly of a profiled cam and a rotary key.

The device contains a tapered shaft 1 (see FIG. 1) and a screw pair made in the form of a cam 2 radially placed on the tapered shaft 1 and a counterpart made in the B1 casing 3 with a profiled movable nut 4, on which a rotating wrench 5 is mounted, made in the form of a cylinder, on a cylindrical surface of which a diametrically arranged annular groove and longitudinal grooves 7 are made, the stop 8 for determining the position of the rotary key 5 relative to the annular groove 6 and the subroutine dinner clamp 9, oriented along the longitudinal grooves 7 of the rotary key 5 by means of an annular spring 10. The rotary key 5 is fixed by a cover 11, and the annular spring 10 is fixed by a screw 12. The device works as follows ..

The counter piece is inserted into the sleeve 3 on the conical shaft 1. The rotary key 5 rotates the shaped movable nut 4 relative to the profiled cam 2 and creates the necessary tension g of the screw pair connection. The achieved mating ficoats from twisting the spring-loaded retainer 9 Gt using the ring spring 10 and the corresponding longitudinal groove .7 of the pivoting prickle 5.

Separation occurs by turning the rotary key 5 in the opposite direction along the annular groove 6 to the fixed stop 8 of the holder 3.

"The use of the invention will simplify maintenance due to a strictly fixed position Open, which significantly reduces the disassembly time of the connection; increase reliability due to the possibility of creating / required tension regardless of the condition and wear of the cam and nut profiled surfaces; For various working conditions, create and fix the necessary tension of the mate.

Claims (1)

1. Author's certificate of the USSR 465762, cl. H 05 K 7/12, 1975. 2, USSR author's certificate 646480, cl. H 05 K 7/12, 04.07. 1977 (prototype).