CN111288110A

CN111288110A - Damper device for eliminating vibration

Info

Publication number: CN111288110A
Application number: CN201911356811.4A
Authority: CN
Inventors: 包凤丹
Original assignee: 包凤丹
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-06-16

Abstract

The invention relates to the technical field of shock absorbers, in particular to a damper device for eliminating vibration, which mainly comprises: a damping valve body comprising at least one through-flow channel having an outlet side; and at least one via; a valve disc at least partially covering the outlet side, at least one valve disc rising from the valve seat surface through the at least one through passage during impact; a support plate serving as a stopper by limiting the lifting movement of the valve disc, and including an elastomer support made of rubber in the direction of the valve disc; the support disc comprises an axially continuous receiving opening; a plurality of individual support elements. The invention aims to improve the fluid flow-through performance by having a support disc with an elastic support.

Description

Damper device for eliminating vibration

Technical Field

The invention relates to the technical field of shock absorbers, in particular to a damper device for eliminating vibration.

Background

Regardless of the embodiment, the sudden peak loads occurring in the damping operation of the known damping valves have the effect that the valve disk strikes against the support disk. This effect is audible. One solution may be to use a plurality of valve discs arranged in layers. Because of the layering, the disk package has support functions. Disadvantageously, an increase in the damping force characteristic occurs in the valve disk which tends to be rigid. Such as a known damping valve for a shock absorber. The damping valve has an elastomer support configured as an elastomer ring, which counteracts an impact movement of the valve disk relative to the support ring. With regard to the stop function, the elastic ring acts as a sealing ring, so that the damping medium can only flow radially out of the damping valve.

Disclosure of Invention

The present invention provides a damper device for damping vibration, which improves fluid flow performance by having a support plate with an elastic support.

In order to achieve the purpose, the invention provides the following technical scheme: a damper device for damping vibration, comprising: a damping valve body comprising at least one through-flow channel having an outlet side; and at least one via; a valve disc at least partially covering the outlet side, at least one valve disc rising from the valve seat surface through the at least one through passage during impact; a support disc which acts as a stop by limiting the lifting movement of the valve disc and which comprises, in the direction of the valve disc, an elastomeric support made of rubber; the support disc comprises an axially continuous receiving opening; a plurality of individual support elements.

Preferably, the individual support elements are configured as balls.

Preferably, the individual support elements are arranged on different pitch circles.

Preferably, the respective support element has a different axial distance than the valve disc.

Preferably, there is a separate support element forming the stop plane.

Preferably, the stop plane is formed as an inclined plane with respect to the valve disk.

Preferably, the respective support elements have different spring rates.

Preferably, the damping valve further comprises a receptacle having a support disk for having separate support elements, the receptacle having different depths.

The invention has the beneficial effects that: the elastomer support is formed by a plurality of individual support elements, between which at least two flow cross sections are located and which can serve as flow paths for damping the medium out of the damping valve. The individual support elements are preferably designed as balls. The advantage of such a separate support element is that it does not require any specific orientation with respect to the valve disc and can be manufactured very easily as mass-produced items. The individual support elements can be arranged on different pitch circles and thus provide a plurality of support points for the valve disk in the radial direction. The individual support elements can have different axial distances from the valve disk and thus influence the lifting movement of the valve disk in certain regions. The individual bearing elements form a stop plane which effectively supports the valve disk in two dimensions. The stop plane can be designed as a plane inclined relative to the valve disk in order to achieve a specific opening movement of the valve disk. The individual support elements may have different spring rates. This step can also be used to specifically control the lifting movement of the valve disc. The receptacles in the support tray for the individual support elements have different depths. In this case, a standardized single support element may be used. The support plate may have a plurality of receptacles, but not all receptacles need to be equipped with separate support elements. This operation can be performed in individual cases, depending on the requirements of the damping valve configuration. The support disc may have an axially continuous receiving opening and the individual support elements extend through the support disc so as to project on both sides. With this configuration, two different support characteristics can be achieved by a single support disc and alternating mounting locations.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a top view of the support tray of the present invention;

FIG. 3 is a schematic view of one version of the present invention;

FIG. 4 is a schematic view of another embodiment of the present invention;

fig. 5 is a schematic view of another embodiment of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Fig. 1 shows a damper valve 1 for a damper of any type of construction. The damping valve 1 comprises a damping valve body 3 fixed to a piston rod 5. The invention is not limited to this type of embodiment and can be used, for example, in a foot valve or also within the framework of an adjustable damping.

The damping valve body 3 divides the cylinder 7 of the shock absorber into a working chamber 9 on the piston rod side and a working chamber 11 remote from the piston rod, both filled with a damping medium. A channel 13; in the

damping valve body

3, 15 for each throughflow direction are formed at different pitch circles. The configuration of the through passage is considered only as an example. The outlet side of the through channel 13. FIG. 1 is at least partially covered by at least one valve disc 17; during the impact of the valve disc 17 starting from the working chamber 11 remote from the piston rod, the valve disc 17 is lifted from its valve seat surface 21. The lifting movement is controlled and braked by the combined support disc 23. With an elastic support. The elastomer support is formed by a plurality of individual support elements 25. The individual support elements 25 are preferably formed as balls. A barrel-shaped configuration is also advantageous. Both structural shapes can be simply mounted and are thus independent of position.

As shown in fig. 1. In fig. 2, the individual support elements 25 are arranged on different pitch circles 27 in the support disk 23. Shown in fig. 2 with radii R1 and R2, and forming a stop plane. Of course, other pitch diameters may be used. It is possible to construct the support disk 23 with an axial opening 31 which forms a flow path between the upper side of the valve disk 17 and the adjoining working chamber 9. When the valve disk 17 is lifted off the valve seat surface 21, the damping medium can flow not only radially out over the valve disk 17 but also between the individual support sections 25 and in this case utilize the axial openings 31 as a support. An outflow path. Fig. 3 and 4 show by way of example that the respective support element 25 at the support disk 23 can have a different axial distance from the valve disk 17, as indicated by the dashed line. For example, as shown in fig. 2. As can be seen from fig. 3, the lift path at the outer circumference of the valve disk 17 is greater than the lift path in the central region.

In fig. 5, the respective support element 25 forms a stop plane 33, which stop plane 33 is formed, for example, as an inclined plane in order to reach a defined lifting point of the valve disk 17. For this purpose, the individual support elements 25 can have different diameters or working heights. However, for a standardized single support element 25, it can also be provided that the groove-shaped receptacles 35 in the support disk 23 have different receiving depths for the individual support elements 25, so that the axial projection length and thus the distance from the valve is obtained. The disc 17 is determined by the reception depth.

The individual support elements 25 may have different spring rates. With a standardized construction of the individual support elements 25, the spring rate can be achieved, for example, by different shore hardnesses of the starting materials.

Fig. 4 shows the structural shape of the support disk 23 with an axially continuous receiving opening 35 and the individual support elements 25 penetrating the support disk 23 with a projection length, which however differs on both sides. Such a support disc may then have two mounting positions. The damping characteristics of the respective support element 25 will depend on which top surface is directed towards the valve disc 17.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A damper device for damping vibration, comprising:

a damping valve body comprising at least one through-flow channel having an outlet side; and at least one via;

a valve disc at least partially covering the outlet side, at least one valve disc rising from the valve seat surface through the at least one through passage during impact;

a support plate serving as a stopper by limiting the lifting movement of the valve disc, and including an elastomer support made of rubber in the direction of the valve disc; the support disc comprises an axially continuous receiving opening;

a plurality of individual support elements.

2. A damper device for damping vibration according to claim 1, wherein; the individual support elements are configured as balls.

3. A damper device for damping vibration according to claim 1, wherein: the individual support elements are arranged on different pitch circles.

4. A damper device for damping vibration according to claim 1, wherein: the respective support elements have a different axial distance than the valve discs.

5. A damper device for damping vibrations as claimed in any one of the preceding claims, characterized in that: with a separate support element forming the stop plane.

6. A damper device for damping vibration according to claim 5, wherein: the stop surface is configured as an inclined plane with respect to the valve disk.

7. A damper device for damping vibration according to claim 1, wherein: the respective support elements have different spring rates.

8. A damper device for eliminating vibration according to any one of claims 1 to 7, wherein: the damper valve further includes a receptacle having a support disk for having separate support elements, the receptacle having different depths.