A method for reducing the eccentric torsional stiffness of a multi-layer rod-end ball joint and a multi-layer rod-end ball joint

A technology of torsional stiffness and ball joints, applied in shafts and bearings, non-rotational vibration suppression, pivots, etc., to achieve the effects of reducing torsional stiffness, ensuring radial stiffness, and increasing stress release space

Active Publication Date: 2022-03-18
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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  • A method for reducing the eccentric torsional stiffness of a multi-layer rod-end ball joint and a multi-layer rod-end ball joint
  • A method for reducing the eccentric torsional stiffness of a multi-layer rod-end ball joint and a multi-layer rod-end ball joint
  • A method for reducing the eccentric torsional stiffness of a multi-layer rod-end ball joint and a multi-layer rod-end ball joint

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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 rubber 4; as 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 groove 15. ...

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 multi-layer rod-end ball joint for reducing the partial torsional stiffness of the multi-layer rod-end ball joint, which includes a casing 1, a mandrel 3 and a rubber layer located between the casing 1 and the mandrel 3, and the rubber layer is provided with There are multiple layers of spacers, and the layer of spacers adjacent to the coat 1 is the outermost spacer 2; the coat 1 includes the outer peripheral surface 5 and the inner peripheral sur...

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Abstract

The invention relates to the field of shock absorption of elastic rubber parts, in particular to a method for reducing the torsional rigidity of a multi-layer rod-end ball joint. A groove is provided on the inner side of the inner peripheral surface of the jacket and rubber is vulcanized in the groove, and the outermost spacer is added. The rubber stress relief range on the inner peripheral surface of the housing between the housing and the housing reduces the torsional stiffness of the rod end ball joint. This program also sets some narrow and long small grooves at the groove bottom of the groove, vulcanizes rubber in some small grooves, and can also increase the bonding area between the outermost spacer and the outer jacket through the grooves and several small grooves to prevent the ball from When the hinge bears a large torsional load, the outermost layer of rubber is stripped from between the outer casing and the outermost layer of the spacer. The invention also provides a structure for reducing the eccentric torsional rigidity of the multi-layer rod end ball joint.

Description

technical field [0001] The invention relates to the technical field of shock absorption of elastic rubber parts, in particular to a method for reducing the eccentric torsional stiffness of a multi-layer rod-end ball joint and 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...

Claims

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Application Information

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Patent Type & Authority Patents(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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