SU1525360A1 - Energy-absorbing element - Google Patents

Abstract

The invention relates to mechanical engineering and can be used to protect moving and stationary objects from inertial effects. The aim of the invention is to increase the energy intensity and reliability while increasing the design loads by increasing the energy dissipation of the external effect. The body of the energy-absorbing element in the form of two sleeves 1 and 2 interacting with each other by means of a screw pair, the torsion 3 is hollow and the element is provided with an elastic rod 6 with end stops 7 and 8, one of which is fixed in the body, and the distance between the other and the end of the torsion 3 is equal to or less than the amount of lifting of the screw pair, it allows you to additionally stretch the twisting torsion 3 and thereby increase the absorption of external energy. 2 Il.

Description

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The invention relates to mechanical engineering and can be used to protect moving and stationary objects from inertial effects.

1, a spruce of the invention, an increase in anergy capacity and 1 reliability when the design loads are exceeded due to an increase in energy dissipation of an external action.

FIG. 1 shows an energy-absorbing element, a longitudinal section; in fig. 2 is a cross section A-L in FIG. one.

The body of the energy-suppressing element consists of cylindrical sleeves I and 2. in which a plastic tubular torsion 3 is fixed. Sleeve 1 and has a protrusion 4, which interacts with the screw surface 5 of the sleeve 2. Inside the tubular torsion 3, the backfire 6 with end stops 7 and 8. In this way, the un 7 protrudes from the housing to a distance, not n), the eigenvalues 110D1) of the screw surface 5 of the sleeve 2. In the central part of the screw I there is a short-cut undercut 9.

Eierg is a supportive e.te.ment that works with a, 1 way for them.

When rotating the sleeve 1 relative to the sleeve 2 -L1e1lch) of the absorbing element against the clock cipe. The iKH protrusion 4 interacts with the screw surface 5, in rezu.Ts) Tate what happens is the twisting and stretching of the plastic torsion 3. When calculating, the toe-side plastic jurciope works. With a shock effect exceeding the calculated one, the destruction of the torsion 3, tulk 1, is advanced out of the socket 2,

five

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five

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rod 1 in the support 7 of the rod 6. The rod 6 V1 is made of plastic material and, being stretched, additionally absorbs the energy of an external action. The load of the counter mark entails the twisting of the plasic torus noiia 3 and the hub 1. It is also drawn from plistic material. For this, in the central part of the hub 1, an annular recess 9. The proposed energy-absorbing element allows to increase the energy dissipation of the external action, increases the reliability of protection of movable and stationary units from inertial effects, which prevent them from calculating loads.

Claims (2)

1. Energy-absorbing element containing a cylindrical body with a plate torsion installed in it, which is enclosed by the fact that, in order to increase power consumption and reliability when the design loads are exceeded, the body is made in the form of two bushings, interacting with o.iH. i with e) 1 (1 st pos H Screw pair, jusion is hollow, the element is provided with a rod with end stops, one of which is fixed in the housing, and the distance between the other face nopOM and the torsion end is equal or less 1K ichimy screw pair. 2.Element according to claim 1, characterized in that the bushings and the shaft are made of the i-ii oro material.