SU1392278A1 - Shock-absorber - Google Patents

Abstract

The invention relates to devices for protecting instruments, electronic equipment from shock and vibration. The aim of the invention is to increase the vibration isolation efficiency by adjusting the nominal loads, which is achieved by inserting discs 4 and 5 into the clips with protrusions and depressions, having the possibility of various adjacent rigid joints with each other, and to each disc, freely moving across the rod clips attached segments of cables with stiffness corresponding to the increment of the load, which leads to an increase in the effectiveness of vibration insulation .1 tion. 9 il. P (/) CO oe tN5 ts: 00

Description

FIG. 2

15

The invention relates to devices for protecting instruments, radio electronic equipment from shock and vibration. 1 | effects and can be used in instrument making to increase vibration isolation.

The aim of the invention is to increase the vibration insulating efficiency by adjusting the nominal Q loads acting on the shock absorber.

FIG. 1 shows a shock absorber in the unloaded condition, a longitudinal section; in fig. 2 - shock absorber loaded with a nominal load, longitudinal section; in fig. 3 - shock absorber with nominal load attached, longitudinal section; in fig. 4 - the same, top view; in FIG. 5-2o, section A-A in FIG. 2; in fig. 6 is a section BB in FIG. 2; in fig. 7 - section B. B. FIG. five; in fig. 8 - section G-Y in FIG. 6; in fig. 9 is a section d-d in fig. 3.25

The shock absorber contains segments of stranded steel cable 1, passing through the rings 2 and secured in the holders 3 and the disks 4 and 5. The holder has a rod 6 with protrusions 7 and a gap JQ a. The disks 4 and 5 are similar to the protrusions of the clips have depressions 8 with the protrusions 9 on the one hand, on the other - the projections 10, equal to the protrusions of the holders 3.

To ensure equal deflection of the sleeves and discs at an increment of the nominal load, the fastening of the cables in the rings is carried out with a shift in the vertical plane equal to the thickness of one disc.

The shock absorber works as follows.

When the shock absorber is loaded with a nominal load P of the sleeve 3, it is displaced towards the center of the shock absorber. Magnitude

35

five

Q

about 5

Q

Q

five

the deflection is determined by the necessary natural vibration frequency of the vibration isolation cables. In this case, disks 4 and 5 remain in their original position and, in the case of dynamic effects, do not participate in the vibration protection process. If one block P is added to the complex of electronic equipment, thereby increasing the nominal load, it is necessary to rotate disc 8 in one direction of disc 4 to align tabs 7 of clip 3 and to drown disk 4 by turning clip 3 to its original position relative to the vertical plane. After releasing 9 discs 4, they will enter the gap in the cage 3, thereby achieving a rigid joint between the clips and the discs.

As the load increases, the next disks are connected. The number of disks is determined by the possible number of units in the electronic equipment.

F o rm ula invention

A shock absorber containing lengths of stranded steel cable passing through the centering rings and part of which is fixed in holders with a rod, characterized in that it is equipped with sequentially installed with clips on the erasers: discs with corresponding protrusions and valleys for periodically fastening the disks between themselves and the yoke, and some of the other ends of the cable sections are fixed in the disks, and all The lengths of the cable are fixed in disks and collars with uniform alternation.

Fig.Z

Aa

Phi2.5

b c

Fi9l

6-b

gd

A a

FIG. 9

Claims (1)

Claim The shock absorber containing segments of a multicore steel cable passing through the centering rings and part of which is fixed in cages with a rod, characterized in that, in order to increase the vibration isolation efficiency by regulating the nominal loads acting on the shock absorber, it is equipped with sequentially mounted cages on the rods disks with corresponding protrusions and troughs for periodically fastening the disks between themselves and the holder, and part of the other ends of the cable segments are fixed in the disks, and all ends are Cable cutters are fixed in disks and clips with uniform alternation.