Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Design method for gaps of main and auxiliary springs of high-strength first-level gradual-change-rigidity leaf spring

A high-strength, primary and secondary spring technology, which is applied in the field of vehicle suspension leaf springs, can solve the main and secondary spring gaps of the high-strength, primary-gradient-stiffness leaf springs with complex deflection calculations and no high-strength primary-gradient-stiffness leaf springs. and other problems to achieve the effect of speeding up product development, reducing design and testing costs, and improving product design level

Inactive Publication Date: 2017-05-31
SHANDONG UNIV OF TECH
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the calculation of the deflection of the high-strength one-stage gradually changing stiffness leaf spring is very complicated during the gradual contact process of the main and auxiliary springs, it can be seen from the research data that the main and auxiliary springs of the high-strength one-stage gradually changing stiffness leaf spring have not been given before at home and abroad. Spring clearance design method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Design method for gaps of main and auxiliary springs of high-strength first-level gradual-change-rigidity leaf spring
  • Design method for gaps of main and auxiliary springs of high-strength first-level gradual-change-rigidity leaf spring
  • Design method for gaps of main and auxiliary springs of high-strength first-level gradual-change-rigidity leaf spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] Embodiment: the width b=63mm of a certain high-strength one-level gradual stiffness leaf spring, half L of the saddle bolt clamping distance 0 =50mm, elastic modulus E=200Gpa. The number of main reeds n=2 pieces, the thickness h of each main spring 1 = h 2 =8mm, half of the active length of the first main spring is L 1t =525mm, half of the clamping length is L 1 = L 1t -L 0 / 2=500mm, half of the working length of the last main spring is L 2t =450mm, half of the clamping length is L 2 = L 2t -L 0 / 2=425mm. The number of auxiliary reeds m = 3 pieces, the thickness of each auxiliary reed h A1 = h A2 = h A3 =11mm, half the working length L of the first auxiliary spring A1t =350mm, half of the clamping length is L A1 = L A1t -L 0 / 2=325mm. Clamping stiffness of main spring K M =51.44N / mm, composite clamping stiffness K of primary and secondary springs MA =178.62 N / mm. Start contact load P k =1842N, full contact load P w =6398N, rated load P N =7227N, a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a design method for gaps of main and auxiliary springs of a high-strength first-level gradual-change-rigidity leaf spring and belongs to the technical field of suspension steel plate springs. According to the design method, the gaps of the main and auxiliary springs of the high-strength first-level gradual-change-rigidity leaf spring can be designed according to design requirement values of a main spring structure parameter, the first-piece auxiliary spring length, the elastic modulus, the main spring intensifying rigidity, the main and auxiliary spring composite intensifying rigidity, a contact load, a rated load and the remaining tangent line arc height under the rated load. It can be seen that from a model machine loading test, the design method for the gaps of the main and auxiliary springs of the high-strength first-level gradual-change-rigidity leaf spring is right, accurate and reliable design values of the gaps of the main and auxiliary springs can be obtained, and a reliable technical basis is laid for design of the high-strength first-level gradual-change-rigidity leaf spring and CAD software development. By means of the method, the product design level, quality and performance and the vehicle running smoothness can be improved; and meanwhile, the product designing and experiment testing cost is reduced, and the product development speed is increased.

Description

technical field [0001] The invention relates to a vehicle suspension leaf spring, in particular to a design method for a primary and secondary spring gap of a high-strength one-stage gradually changing rigidity leaf spring. Background technique [0002] With the emergence of high-strength steel plate materials, high-strength one-level gradient stiffness leaf springs can be used to meet the design requirements of vehicle ride comfort and suspension gradient bias frequency under different loads. Among them, high-strength level one The gap between the main and auxiliary springs of the leaf spring with gradual stiffness not only affects the initial contact load and the full contact load, but also affects the gradual compound clamping stiffness of the main and auxiliary springs and the ride comfort of the vehicle. However, since the calculation of the deflection of the high-strength one-stage gradually changing stiffness leaf spring is very complicated during the gradual contact ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16F3/02F16F1/18G06F17/50
CPCF16F1/185F16F3/023G06F30/17
Inventor 周长城于曰伟王炳超汪晓杨腾飞王凤娟邵明磊
Owner SHANDONG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com