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A kind of rba leaf spring assembly and its automobile

A technology of leaf springs and assemblies, applied in the direction of springs, spring assemblies composed of several springs, vehicle springs, etc., can solve problems such as breakage at the contact of RBA leaf springs

Active Publication Date: 2018-12-14
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides an RBA leaf spring assembly and an automobile, which solves the problem that the RBA leaf spring of the existing automobile is prone to breakage at the contact point, and improves the safety of the automobile

Method used

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  • A kind of rba leaf spring assembly and its automobile
  • A kind of rba leaf spring assembly and its automobile
  • A kind of rba leaf spring assembly and its automobile

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Embodiment Construction

[0050] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0051] The main spring of the current RBA leaf spring for automobiles is usually composed of two leaf springs with the same cross-section and equal effective length. Because the stress of the leaf spring is small at both ends and the middle is large, the stress is uneven. When the load is large, the main spring is flattened or even When bowing, the stress of the main spring at the end of the auxiliary spring is too large, and fatigue fracture is caused. The present invention provides an RBA leaf spring assembly. The main spring is composed of 4 equal-section leaf springs whose length gradually shortens from top to bottom, and has an upward circular arc structure. The auxiliary spring adopts a single-piece variabl...

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Abstract

The invention relates to an RBA leaf spring assembly and an automobile comprising the same. The main body of the leaf spring assembly is formed by superposing a main spring and an auxiliary spring; the main spring and the auxiliary spring are fixed through a center bolt and a nut, and are fixed at both ends of the main body through the assistance of a small clamp and a big clamp; the main spring is formed by superposing four spring plates; each spring plate is a constant-cross-section asymmetric leaf spring plate in an upward arc shape; the auxiliary spring is a single variable-cross-section asymmetric leaf spring plate in a downward arc shape; the stiffness of the auxiliary spring gradually increases from both ends to the middle; when both ends of the leaf spring assembly are subjected to a load, a contact surface between the end of the auxiliary spring and the main spring exists and enlarges as the load increases, so that the stiffness of the leaf spring assembly gradually and steadily increases. According to the RBA leaf spring assembly disclosed by the invention, the problem that the existing RBA leaf spring of an automobile is easy to break at the contact point is solved, and the safety and the riding comfort of the automobile are improved.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to an RBA leaf spring assembly and an automobile thereof. Background technique [0002] Leaf springs are referred to as leaf springs, which can be placed vertically or horizontally on the car. The latter must be provided with an additional guiding force transmission device to transmit the longitudinal force, which makes the structure complex and the quality increased, so it is only used in a small number of light and miniature vehicles. Longitudinal leaf springs can transmit various forces and moments, and have a simple structure, so they are widely used in automobiles. [0003] There are many types of leaf springs. According to the stiffness characteristics of leaf springs, there are linear and nonlinear points; according to the steel plate cross-section, there are equal cross-section and variable cross-section; Home leaf springs, traction leaf springs, RBA leaf springs, fathe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G11/02F16F3/02F16F1/20
CPCB60G11/02B60G2202/11F16F1/20F16F3/023
Inventor 刘守银洪学臣周磊磊
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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