DE1966435C3 - Layered spring made of several pressure-loaded rubber-metal spring washers connected in series - Google Patents

Description

3 4

are suitable for the damping part. However, the above bodies 3, 4 with the centering ring writing effect is only possible, groove 7 and the ring bead 8 and the circular ones because the less elastic rubber body in the non-resilient rubber body S, 6 with the Recess 10 and the loaded condition vulcanized over the surface of the elastic projection 11 The circular rubber body protrudes Since the less elastic 5 rubber body 5,6 and the circular rubber body a strong settlement under dynamic body 3, 4 are through annular gaps 12, 13, the up to the load and also a strong crawl under sta- sheet metal washer, separated from each other. The table's permanent load shows, while the highly elastic circular rubber bodies 5, 6 are made from an un-Gurrmik body with almost no plastic deformation, give lead-elastic rubber or plastic mixture, both bodies reach the same spring-io manufactures and are already over the circular ring-shaped rubber washer After a short period of operation, the same body 3, 4, the one made of highly elastic rubber be-starting height. Flowing and settling have after a stand, in an unloaded state. With more number of load changes an end value. The lead load causes a plastic deformation of the existing deformations by flowing and setting of damping rubber bodies 5, 6 until a deformation of 40 to 50% of the elastic deformation is reached. Wear under heavy loads. This shows the importance of the inventive measure when the side walls of the rubber parts come to the plant, without the parallel connection of and the gaps 12, 13 are closed. The rubber elements of different elasticity uselessly rubber bodies 5, 6 then form with the rubber granules. pern 3, 4 a rubber body with a closed

Finally, it is provided according to the invention, ao cross section.

that the end face of the rubber body to the outside F i g. 3 shows the cross-section of annular bodies

rises flat conically towards the edge. Since the tensions 14, 15 with the centering annular depressions

pressure-loaded rubber body not uniformly gene 16 and projections 17 and the outward and

are distributed over the entire cross-sectional area, so inside ^ n flat conically rising end faces 18, 19,

which the contact pressure to the outside down to the as the dividing lines between two

If the value of zero decreases, spring washers that move relative to each other occur at the edge. Due to the conical

cations between the superimposed rubber training is, as F i g. 4 shows, instead of the

bodies on, the pressure distribution 20 occurring for abrasion, heating and the destruction of the surface

lead. In the case of strong deformations, there is even a more uniform distribution 21 and a significant one

Gap at the point of separation of the rubber 30 increasing the compressive stress at the edges

body to watch. Aiming through the conical rise.

the end faces a higher compressive stress becomes F i g. 5 shows a force-displacement diagram of an inventive edge achieved and thus every layer spring according to the invention, the spring washer of which between the rubber bodies is definitely avoided from elastic and damped parallel-connected. This inventive measure is also made up of 35 bodies. In the diagram, the ordinate P indicates the size of the spring force, the abscissa / the size of spring washer elements in shock buffers with a large spring deflection for the possibility of using the described. The curve 0-22 is the force meaning. Path diagram of the elastic, the curve 0-23 that

The figures illustrate the invention of the damped body. By adding the forces

on exemplary embodiments, namely 40 shows the resulting spring travel is the same

F i g. 1 a spring washer with an annular curve C '24. Under dynamic loading of the

and a circular rubber body in the axial velvet layer spring, the spring code 0-24 occurs

cut, the final load at point 24 . In the immediate

F i g. 2 shows a plan view of the spring washer after the force of 24 drops after it is relieved of pressure

F i g. 1, 45 to 22 onwards, since the regression of the damping and

F i g. 3 shows the cross-section through a single and therefore less elastic body for a longer period of time

vulcanized ring-shaped rubber body in the axial direction and the restoring force is still increasing

cut, does not affect. The elastic bodies are formed

F i g. 4 quickly returns the course of the compressive stresses on diagram 22-0 , while the

the cross section F i g. 3, 50 remaining dampened bodies take off and

F i g. 5 a force-displacement diagram of the layered spring are ineffective. The dynamic diagram of the

and velvet layer spring has when loading and unloading the

F i g. 6 a layer spring, which is made up of individual nibs form 0-24-22-0. The enclosed area puts the discs with ring-shaped rubber bodies together - impact is converted into another form of energy, in a loaded state. 55 energy.

According to the F i g. 1 and 2 are on a circular F i g. 6 shows two spring sheet metal disks lying on top of one another 1 with those for balancing the rubber washer in a loaded condition. The volume-stable The rubber provided during the vulcanization process bulges out to the side, gaps 12, 13 Holes 2, 9 of the circular rubber closes.

1 sheet of drawings

Claims (2)

shape that makes it unusable after a short time, even if the rebound effect is avoided J But also if the known 1. Layer spring made up of several guides one behind the other or rubber-coated material of the same thickness, they would not have the desired success, bestehln, whereby the dividing line between two ». because the flow behavior or the dynamic neighboring, directly with their rubber bodies hold the elastic wheel inelastic compounds pern on top of each other! Spring washer elements - very strongly anterschedeL The stronger flowing It is exactly in the middle between the adhered inelastic compounds and the rubber compounds that are vulcanized onto them are pressed together faster than the elastic ones and Ted becomes with them body of the individual spring washers concentric 15 unusable. mutually lying circular and circular shape The invention is based on the object of erne m -Have cross-sections or as oval rings from a layered spring with high working structure are characterized by creating that is able to do without hindrance some of the rubber bodies (3, 4) quickly return to the starting position from a pralf effect Rubber compound and the rest of the ao; it should also be cheap and easy to manufacture borrowed part (5, 6) from a strong damping and maintenance-free. Rubber mixture, preferably chlor-butyl-chewing. The invention provides a layered spring of the antschuk, or a strongly damping plastic at the beginning described, and the new one is made, with the remaining part of the fact that part of the rubber body consists of a high- Rubber body (S, 6) in the unloaded state 35 elastic rubber mixture and foi the remaining part protrudes over the end face of one part of the rubber from a strongly damping rubber mixture, pre-body (3, 4). preferably chloro-butyl rubber, or a strong one 2. Layered spring according to claim 1, characterized in that damping rubber is produced, the remainder denoting that the end face (18, 19) of the borrowed part of the rubber body in the unloaded state Rubber body towards the outer edge flat conical 30 over the end face of one part of the rubber body increase. protrudes. In this version, Impact loads the rings connected in parallel each spring washer is deformed with the impact speed of the impacting vehicle. An instant one The invention relates to a layered spring 35 but only takes place quickly when the spring is recovered from several series-connected, pressure-elastic part of the spring washers instead of their back claims Rubber-metal spring washers, the adjustability of which is such that they move back quickly Spring washer elements made of flat sheet metal with the buffer in the initial position, Vulcanized bodies from both sides firmly adhering to The damping, less elastic part of the spring rubber or rubber-like material of the same disk is required due to its great inner work strength exist, whereby the parting line between two material friction for recovery is a longer one neighboring, directly with their rubber bodies period of time, which can be several seconds. this spring washer elements lying on top of one another is accurate when using Federin according to the invention the middle between the attached metal sheets is discs for shock buffers or torque brackets and the vulcanized rubber bodies of the individual 45 are absolutely permissible, since with these shock loads spring washers that are concentric to one another do not appear one after the other at short intervals, have circular and circular cross-sections As the recovery process in the damping or are designed as oval rings. Fenden parts of the spring washers compared to the ela-Such Layer springs are z. B. from the DT-PS stic is delayed, the damping, un-8 stand out 87 666 known. The rubber layer is exactly in the 50 elastic parts of the spring washers from each other, Divided in the middle between two sheets, because only in this and therefore the entire sheet is during the reset The middle, neutral fiber does not find any restoring force of the damping pressure when the layered spring is put together no horizontal shift of the central parts effective. In the work diagram of the overall Rubber layers lying on top of one another, thus creating a particularly large layer spring other place. Radial shear stresses 55 hysteresis loop, which the high work consumption only do not occur in the plane of symmetry. This illustrates one such element. The scored known spring washer elements still have basic hysteresis is due to the phase shift of the end of the occupancy Disadvantages of using it for shock-absorbing motion sequence during shock-like compression fer prevented. The vulcanized layers are larger than the rubber parts of different elasticity the sum of all rubber parts made from the same highly elastic material. They therefore do not have sufficient hysteresis loops. While as a material and give up most of the absorbed for the highly elastic part elastic rubber impact energy with a strong rebound effect. Mixtures used are for the steaming for Waggon buffers therefore have ring elements fenden part of plastics or synthetic rubber known designs as unusable 65 provided. Particularly high attenuation sen. In the case of elements made of strongly damping and therefore with tolerable regression of the flow deformation only a little elastic synthetic rubber or synthetic has chloro-butyl rubber, but also Buna, Mixtures of substances show a strongly plastic ver Perbunan, chlorinated rubber and similar materials