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An hourglass spring and a method for enhancing lateral stability of a vehicle

A technology of hourglass springs and bosses, applied in the direction of relative movement between the chassis and the bogie, low internal friction springs, springs/shock absorbers, etc., to achieve strong nonlinear characteristics, improve lateral stability, increase The effect of contact area

Active Publication Date: 2019-01-22
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above existing technologies cannot both provide a certain amount of lateral displacement and have a certain lateral stiffness.

Method used

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  • An hourglass spring and a method for enhancing lateral stability of a vehicle

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Embodiment Construction

[0025] The accompanying drawing shows a schematic diagram of a specific example of the present invention without limitation, and the present invention will be further described below in conjunction with the accompanying drawings.

[0026] Please refer to figure 1, an hourglass spring, comprising an hourglass spring vulcanized part 1, a hexagon socket head screw 2 and a support seat 3; the hourglass spring vulcanized part consists of an upper end plate 1a, a rubber 1b and a bottom plate 1c. The hourglass spring is mainly composed of an hourglass spring vulcanized part 1 and a support seat 3 connected by a hexagon socket head screw 2. Hourglass spring vulcanized parts are mainly composed of upper end plate, rubber and bottom plate vulcanized. The side of the upper end plate in contact with the rubber is designed with a rounded truncated boss one. The junction between the side of the boss one and the lower surface of the upper end plate is a smooth transition. The side of the bo...

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Abstract

The invention discloses an hour-glass spring and a method for enhancing the lateral stability of a vehicle. The hour-glass spring comprises an hour-glass spring vulcanization part. The hour-glass spring further comprises a supporting base connected to the lower side of a base plate. A first boss is arranged on the lower surface of an upper end plate, and a second boss is arranged on the upper surface of the supporting base. A cavity is formed among the upper end plate, the supporting base and rubber. When the load reaches a preset value and then is gradually increased, the upper portion of the rubber and the side face of the first boss of the upper end plate gradually make contact with each other, the lower portion of the rubber and the side face of the second boss of the supporting base gradually make contact with each other, and therefore the contact area of the rubber with the upper end plate and the supporting base is increased, and deformation of the rubber is restricted. The hour-glass spring has the high non-linear characteristic, the vertical stiffness under the no-load condition is low, the vertical stiffness under the full-load or overload condition is high, and thus the comfort and safety vehicle requirements are well met. Meanwhile, certain lateral displacement can be provided, high transverse stiffness is achieved, and the lateral stability is improved.

Description

technical field [0001] The invention relates to the technical field of rail transit vehicle vibration reduction. Background technique [0002] The hourglass spring is an emergency spring that plays an auxiliary role in the air spring. It is made of rubber and iron parts vulcanized, and it acts as a load bearing and provides a certain vertical and lateral displacement when the air spring is deflated. At present, the application environment of track lines in various countries and regions is very different. In order to reduce the mutual wear between track lines and wheel sets and improve the comfort of vehicles, the vertical stiffness of vehicle secondary suspension is required to be lower and lower. As the main secondary suspension components of modern rail vehicles, air springs require lower and lower vertical stiffness indicators when the air spring is deflated under no load. As the load increases, the vertical stiffness requirements become larger and larger. The auxiliary ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F1/36B61F5/08
CPCB61F5/08F16F1/36
Inventor 龙垚坤叶特陈清化程海涛张涛农多敏
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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