Spherical hinge rubber elastic element stiffness changing method and spherical hinge rubber elastic element

A technology of elastic element and rubber elastic body, which is used in elastic shock absorbers, railway car body parts, railway couplings, etc.

CN101368609AActive Publication Date: 2009-02-18ZHUZHOU TIMES NEW MATERIALS TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2009-02-18

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Abstract

Disclosed is a spherical hinge class rubber elastic element rigidity varying method and a spherical hinge class rubber elastic element; the combination mode of the multi-segment spherical hinge class rubber elastic bodies is adopted; the non-linear properties of the segments of the spherical hinge rubber elastic bodies are different; the spherical hinge class rubber elastic elements with different non-linear properties are combined on a spindle to realize the variation of the rigidity of the whole spherical hinge class rubber elastic element in different situations and radial directions, so as to realize the varying rigidity purpose. The spherical hinge class rubber elastic element comprises a metal spindle, a metal outer sleeve , an elastic rubber body and a metal inner sleeve; the elastic rubber body, the metal outer sleeve and the metal inner sleeve are integrated to a whole through vulcanization; the metal inner sleeve is nested on the metal spindle; the spherical hinge class rubber elastic element rigidity varying method and the spherical hinge class rubber elastic element have the advantages that the spherical hinge class rubber elastic element is the combined structure of a mutually-independent three-segment elastic body; the whole spherical hinge class rubber elastic rubber is composed of three independent parts, including a metal outer sleeve, an elastic rubber body, a metal inner sleeve; the elastic bodies are axially combined on the spindle to construct a whole.
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Description

technical field

[0001] The invention belongs to a damping method and component products, in particular to a method and product for variable stiffness of rubber elastic components of ball joints, which are mainly used in rubber elastic components for bogies of various subways and urban light rail vehicles, and can also be used at the same time It is suitable for any vibration-damping elastic connection parts such as construction machinery. Background technique

[0002] Ball joint type rubber elastic element is a commonly used rubber-metal composite damping element, which can be widely used in various vibration damping places, especially in the bogies of rolling stock.

[0003] Different from metal materials, rubber materials are typical nonlinear materials, so elastic elements made of rubber materials will also show nonlinear stiffness properties. For example, the relationship between load and deformation of steel springs is The ratio (that is, stiffness) is a constant, but ...

Examples

Embodiment 1

[0034] From attached Figure 4 -5, it can be seen that the ball joint type rubber elastic element is composed of A ball joint 2, B ball joint 3 and mandrel 1; wherein, A ball joint 2 is two pieces, B ball joint 3 is one piece; A The ball joint 2 and the B ball joint 3 are both sleeved on the mandrel 1, and the B ball joint 3 is located between the two A ball joints, and the A ball joint part and the B ball joint part are elastic ball joints with different structures and different rigidities . attached Figure 6 It is a schematic diagram of the split structure of this embodiment.

[0035] Among them, such as Figure 4 and Figure 7 As shown, the A ball joint 2 is composed of the A ball joint metal inner sleeve 4, the A ball joint rubber elastic body 5 and the A ball joint metal outer sleeve 6, and the A ball joint rubber elastic body 5 is located between the A ball joint metal inner sleeve 4 and the A ball joint Between the hinge metal jackets 6, and the inner surface of t...

Embodiment 2

[0038] attached Figure 13 -14 is another embodiment of the present invention, the structure of embodiment two and embodiment one is basically similar, just increased spacer 16 in the rubber elastic body of A ball joint 2, for the branch similar to B ball joint 3 With the petal structure, the number of spacers 16 can be adjusted according to needs, so that the product performance of variable stiffness can also be obtained, but compared with the first embodiment, a relatively steep stiffness curve of the first stage can be obtained.

Embodiment 3

[0040] attached Figure 15 As another embodiment of the present invention, the structure of the third embodiment is similar to that of the first embodiment, except that the middle split metal spacer 10 is omitted from the B spherical joint elastic rubber body 9, so that the product performance of variable stiffness can also be obtained. However, compared with the first embodiment, a relatively gentle stiffness curve of the second stage can be obtained.