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Device for indicating replacement time of composite leaf spring

A technology for replacing time and composite plates, applied in the direction of measuring devices, leaf springs, springs, etc., can solve the problems of poor durability of composite leaf springs, inability to easily identify replacement time and damage of composite leaf springs

Pending Publication Date: 2019-01-22
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the composite leaf spring is damaged due to deterioration in its durability in such a manner that delamination (ie, separation of layers) occurs layer by layer from the outermost layer toward the inner layer of the top or bottom surface of the composite leaf spring.
Therefore, the driver cannot easily recognize the replacement time of the composite leaf spring audibly or visually, which leads to frequent occurrence of accidents due to damage of the composite leaf spring

Method used

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  • Device for indicating replacement time of composite leaf spring
  • Device for indicating replacement time of composite leaf spring
  • Device for indicating replacement time of composite leaf spring

Examples

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Embodiment Construction

[0020] Reference will now be made in detail to the preferred embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0021] Such as figure 1 and 2 As shown, the rear wheel suspension device of a large truck with a dual-axle structure for supporting the rear wheels includes: a pair of rubber springs 3 mounted to the rear wheel front axle 1 and the rear wheel rear axle 2, and extending along the front and rear directions The composite leaf spring 4 is connected with the rubber spring 3 at opposite ends thereof.

[0022] The composite leaf spring 4 is a single whole formed by mixing unidirectional glass fiber and epoxy resin.

[0023] A trunnion base 6 including a trunnion 5 is disposed in the longitudinal middle of the composite leaf spring 4 . The trunnion base 6 is coupled to the vehicle frame 7, and the U-b...

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PUM

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Abstract

Disclosed is a device for indicating a replacement time of a composite leaf spring formed by mixing unidirectional glass fiber and epoxy resin, the device comprising: a current transmitter and a current receiver disposed at respective opposite ends of the composite leaf spring; a controller for determining a present state of the composite leaf spring by comparing an amount of current applied to the current transmitter with an amount of current detected by the current receiver; and an informing device for indicating a present state of the composite leaf spring under control of the controller. The device for indicating the replacement time of the composite leaf spring constantly monitors the durability of the composite leaf spring formed by mixing the unidirectional glass fiber and the epoxyresin, and informs a driver of the appropriate replacement time of the composite leaf spring based on the monitoring result.

Description

technical field [0001] The present disclosure relates to a device for indicating when to replace a composite leaf spring, and more particularly, a device for continuously monitoring the durability of a composite leaf spring formed as a single body and used for Replaces the leaf spring composed of multiple steel plates in the suspension device of the biaxial structure for supporting the rear wheel, and based on the monitoring results, notifies the driver of the appropriate replacement time for the composite leaf spring. Background technique [0002] Large trucks, such as dump trucks, have a dual-axle structure to support the rear wheels in order to support the load evenly, especially when driving on rough unpaved roads. [0003] The rear wheel suspension device of a large truck having a dual-axle structure for supporting the rear wheels includes a pair of rubber springs mounted to the front axle of the rear wheels and the rear axle of the rear wheels, and a leaf spring extend...

Claims

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Application Information

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IPC IPC(8): B60G17/018
CPCB60G17/0182B60G2600/04B60G2600/044B60G11/04B60G17/0185B60G2202/112B60G2206/428B60G2206/7101B60G2600/042B60G2800/802F16F2230/24F16F1/368B60G17/018B60G11/34G01L1/044G01L5/22B60G11/02G01B5/30
Inventor 吴胜贤
Owner HYUNDAI MOTOR CO LTD