Double-spherical traction rubber joint and making method thereof

A technology of rubber joints and manufacturing methods, applied to railway car body parts, springs, bogies, etc., can solve problems such as low deflection stiffness, rubber bending deformation, etc., achieve low deflection stiffness, reduce rubber bulging, and increase deflection The effect of deformation

Active Publication Date: 2018-11-30
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above existing technologies cannot achieve high radial stiffness requirements, low deflection stiffness and avoid rubber bending deformation at the same time

Method used

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  • Double-spherical traction rubber joint and making method thereof
  • Double-spherical traction rubber joint and making method thereof
  • Double-spherical traction rubber joint and making method thereof

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Embodiment Construction

[0029] Please refer to Figure 1 to Figure 3 , a double spherical traction rubber joint, including a mandrel 1, a jacket 2 and a rubber layer 3 vulcanized and bonded between the mandrel 1 and the jacket 2. The rubber layer is vulcanized between the mandrel and the double spherical surface of the jacket, and the thickness h1 of the middle rubber layer (that is, the thickness in the middle of the rubber layer) is less than or equal to the thickness h2 of the rubber layers at both ends (that is, the thickness at both ends of the rubber layer). And the sum of the radius SR2 of the mandrel spherical section and the thickness h1 of the middle rubber layer is less than or equal to the radius SR1 of the outer casing spherical section. For the finished double spherical traction rubber joint, the rubber profiles at both ends of the rubber layer are formed by radially pre-compressing the rear-approaching rubber profile, and the rubber profile becomes a close-fitting rubber profile after ...

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Abstract

The invention discloses a double-spherical traction rubber joint and a making method thereof. The double-spherical traction rubber joint comprises a mandrel, an external sleeve and a rubber layer; themandrel comprises a mandrel spherical section; the external side surface of the mandrel spherical section is a spherical surface; the rubber layer is bonded between the external side spherical surface of the mandrel and the internal side spherical surface of the external sleeve in a vulcanized manner; the thickness of the middle part of the rubber layer is less than or equal to the thicknesses ofthe two ends of the rubber layer; and the sum of the radius of the mandrel spherical section and the thickness of the middle part of the rubber layer is less than or equal to the radius of a spherical section of the external sleeve. During making, the external side surface of the middle part of the mandrel and the internal side surface of the middle part of the external sleeve are machined into spherical surfaces; the rubber layer is bonded between the double spherical surfaces of the mandrel and the external sleeve in a vulcanized manner; and the rubber profiles of the two ends of the rubberlayer are machined into rear proximate rubber profiles and then are pre-compressed in the radial direction to be molded. By applying the double-spherical traction rubber joint and the making method thereof, high radial stiffness requirement can be realized, low deflection stiffness can also be realized, and bending deformation of the rubber can also be avoided.

Description

technical field [0001] The invention relates to the technical field of vehicle vibration reduction, in particular to a traction double spherical rubber joint. Background technique [0002] The traction rubber joint is the key vibration-damping connection element of the bogie, which is installed in the holes at both ends of the drawbar to transmit traction force, braking force and ease the vibration shock transmitted from the bogie to the car body. In addition to the radial load of the traction rubber joint, the deflection stiffness of the product is also a key factor affecting the reliability of the product. The deflection stiffness directly affects the smoothness of the car body passing through the curve. The smaller the stiffness, the easier it is to pass the curve. The greater the stiffness, it is easy to increase the additional stiffness of the bogie and affect the dynamic performance of the bogie. At the same time, the resistance will lead to traction rubber joints. fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/50F16F1/393
CPCB61F5/50F16F1/393F16F1/3835
Inventor 董永柳禄泱王睿张宇冯万盛石中玉张志强
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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