Method and structure for reducing deflection torsional rigidity of multi-layer rod end spherical hinge

A technology of torsional rigidity and spherical hinge, applied in the field of elastic rubber parts for shock absorption, to achieve the effect of ensuring radial rigidity, reducing the partial torsional rigidity of the rod end, and reducing the partial torsional rigidity

Active Publication Date: 2021-10-15
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the radial stiffness of the rubber body so that the body can withstand greater radial loads, spacers are added to the rubber layer under many working conditions. The spacers divide the rubber layer into multiple layers. During the high-speed operation of the body, In order to improve the safety and comfort of the airframe, a multi-layer rod-end ball joint that can provide a large degree of torsional freedom, that is, a small torsional stiffness, is needed, but the existing multi-layer rod-end ball joints cannot meet the above requirements, so Need to improve on this

Method used

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  • Method and structure for reducing deflection torsional rigidity of multi-layer rod end spherical hinge
  • Method and structure for reducing deflection torsional rigidity of multi-layer rod end spherical hinge
  • Method and structure for reducing deflection torsional rigidity of multi-layer rod end spherical hinge

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Embodiment 1

[0030] This example Figure 1-6 As shown, a method to reduce the eccentric torsional stiffness of the multi-layer rod end ball joint, such as figure 1 As shown, the above-mentioned rod end ball joint includes a casing 1, a mandrel 3 and a rubber layer. The threaded handle 18 is provided on the casing 1 to facilitate the use and operation of the rod end ball joint; the rubber layer is located between the casing 1 and the mandrel 3, There are multi-layer spacers inside the rubber layer, and the multi-layer spacers divide the rubber layer into multiple layers. The layer of spacers adjacent to the jacket 1 is the outermost spacer 2, and the space between the outermost spacer 2 and the jacket 1 The rubber layer is the outermost layer of rubber 4; figure 2 As shown, the jacket 1 includes a jacket outer peripheral surface 5 and an outer jacket inner peripheral surface 6. A groove 15 is provided inside the outer jacket inner peripheral surface 6 and rubber is vulcanized in the groov...

Embodiment 2

[0036] as attached Figure 7 As shown, the difference between this embodiment and the first embodiment is that several narrow and long small grooves 16 are arranged at the groove bottom of the curved surface groove 15. The groove 16 further increases the bonding area between the outermost spacer 2 and the outermost spacer 1 to prevent the outermost layer of rubber 4 from peeling off between the outermost layer 1 and the outermost spacer 2 when the ball joint bears a large torsional load.

[0037] The present invention also provides a structure for reducing the torsional rigidity of a multi-layer rod-end ball joint, which includes a casing 1, a mandrel 3 and a rubber layer between the casing 1 and the mandrel 3, and the rubber layer is provided with a multi-layer spacer , the layer of spacer adjacent to the coat 1 is the outermost spacer 2; the coat 1 includes the outer peripheral surface 5 and the inner peripheral surface 6 of the outer jacket, and the inner peripheral surface...

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Abstract

The invention relates to the field of damping of elastic rubber parts, in particular to a method for reducing the deflection torsional rigidity of a multi-layer rod end spherical hinge. A groove is arranged in the inner side of the inner circumferential face of an outer sleeve, vulcanized rubber is arranged in the groove, and the deflection torsional rigidity of the rod end spherical hinge is reduced by increasing the rubber stress release range on the inner circumferential face of the outer sleeve between an outermost layer spacer bush and the outer sleeve. According to the scheme, a plurality of narrow and long small grooves are arranged at the bottom of the groove, the vulcanized rubber is arranged in the small grooves, and the bonding area between the outermost layer of spacer bush and the outer sleeve can be increased through the groove and the small grooves so as to prevent the outermost layer of rubber from being stripped from the outer sleeve and the outermost layer of spacer bush when the spherical hinge bears a large deflection torsion load. The invention further provides a structure for reducing the deflection torsional rigidity of the multi-layer rod end spherical hinge.

Description

technical field [0001] The invention relates to the technical field of shock absorption of elastic rubber parts, in particular to a method and structure for reducing the torsional rigidity of a multi-layer rod end ball joint. Background technique [0002] The rod end ball joint is an important shock-absorbing connection element, which is mostly used in trains, high-speed rail, automobiles, ships or airplanes. When the body is subjected to complex load conditions such as radial, torsion and deflection, the deformation of the rod end ball joint is used to bear Deviated torsion angle and radial load to prevent the body from rolling over during operation. In order to increase the radial stiffness of the rubber body so that the body can withstand greater radial loads, spacers are added to the rubber layer under many working conditions. The spacers divide the rubber layer into multiple layers. During the high-speed operation of the body, In order to improve the safety and comfort...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C11/12F16C11/06F16F15/08
CPCF16C11/12F16C11/0614F16C11/0661F16C11/0685F16C11/0695F16F15/08
Inventor 谭方王金辉冯万盛黄江彪颜瑶
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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