CS210726B1 - Non-adhesive rubber spring - Google Patents

Abstract

The unglued rubber spring is intended for the isolation of vibrations and noise caused by devices capable of generating stationary or stochastic vibrations and shocks. The sprung mass is placed on rubber members that transmit forces in the vertical direction. Forces in other directions are transmitted by the rubber members together with the stop. The unglued rubber spring has the advantage that its rubber parts, transmitting the sprung mass, can be made of relatively soft rubber, as a result of which the unglued rubber spring has the ability to isolate vibrations with a lower frequency. The deflections of the sprung mass during random shocks in other directions are limited by a suitably placed stop.

Description

1 210726

BACKGROUND OF THE INVENTION The present invention relates to a non-glued rubber spring suitable for shaking and damping,

The so-called non-glued rubber springs are so arranged that the spring-loaded bracket is at least folded from two rubber springs. The prestressing of the rubber members must be large enough that the rubber member does not become loose in the dynamic forces acting on the suspension mass. This requirement must be met in order to prevent the rubber member from changing its position relative to the console when fully unloaded. This would alter or completely prevent its re-load.

The non-glued rubber spring has a lower load carrying capacity. The load-bearing capacity of the rubber spring is less than the force that causes the necessary pretensioning of the rubber members to ensure that they are pushed back onto the support surfaces. If the console of the insulated mass is pressed between two rubber springs, the resulting stiffness of the elastic bearing will be equal to the sum of the stiffness of the two springs. In this case, the non-sticky rubber spring may be stiff as a glued rubber spring which, due to the quality of the bonded rubber and metal bond, must have a higher rubber stiffness than the rubber used by the non-sticky rubber spring.

These drawbacks can be eliminated by the non-sticky rubber spring of the invention. Its essence is that, between the cushioning bracket and the unsprung mass bracket, there are gem members placed in boxes, with the vertical distance between the cushion bracket and the bracket being smaller than the deformation of the rubber members when static cushioning is applied to the cushioning bracket and larger than size stationary oscillation amplitude and suspension mass bracket.

The non-glued rubber spring according to the invention has the advantage that its stiffness as its size is less than the rigidity and dimension of the known non-glued rubber springs. Moreover, the spring of the invention has a higher load capacity than previously known non-glued rubber springs. We have achieved this result by using a stop that does not increase spring stiffness, since it only acts on sprung mass in the case of larger bumps caused by shocks. An exemplary embodiment of the invention is shown schematically in the drawing, wherein Fig. 1 shows a partial longitudinal section of a non-glued rubber spring; Fig. J shows that the rubber members 3 are inserted between the suspension mass bracket and the unsprung mass bracket. The rubber members 3 retain the desired bearing position 4 in the desired position. Stop 5 restricts the movement of the sprung mass bracket to the unsprung mass bracket 2.

FIG. 2 shows that the stop J5 is a portion of the unsprung mass bracket 2 and the spring loaded bracket moves the unsprung mass through the rubber members 3 onto the bracket 2. The rubber members are secured against displacement of the bearings 4 '.

Said non-sticky rubber spring is suitable for insulating shake caused by, for example, piston engines or other rotary machines. It is furthermore suitable for insulating shaking of cabs of transport or building machines. A suitable selected position of the stop will allow the use of a non-glued rubber spring even in those cases when on the suspension! the mass will make a big impact. In the case of bonded rubber springs with a stop, it is very important to place them correctly in the space of the underfloor layout of the elastic deposited mass and according to the direction of the forces which will increase the elastic deposited mass.

Claims (1)

210726 SUBJECT OF THE INVENTION Non-glued rubber spring, characterized in that between the bracket (1) of the sprung mass and the console (2) of the unbonded mass there are rubber members (3) embedded in the beds (4), the distance between the bracket (1) of the sprung mass and the stop (5) is smaller than the deformation of the rubber members (3) by static cantilever (1) cushioning (1) and higher than the stationary vibration amplitudes of the cantilever (1) cushioning material (1) Severografia drawing sheet. n. p., race 7, Most