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Automobile front axle and preparation method thereof

A technology for the front axle and front axle of an automobile, which is applied in the directions of axles, wheels, vehicle parts, etc., can solve the problem that the bending resistance and torsion resistance of the I-beam axle body is not strong enough, it is not suitable for the development trend of light weight, and the length of the axle body cannot be adjusted. and other problems, to achieve the effect of light weight, simple manufacturing process and low cost

Pending Publication Date: 2020-01-24
南平市建阳区波特安电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing vehicle I-shaped front axle technology is very mature, but because the bending and torsion resistance of the I-shaped steel axle body is not strong enough, in an emergency, the I-shaped steel axle body will be deformed, causing the vehicle to lose control and cause a car accident, leading to Loss of life and property; the current process is made by die forging, the process is complicated, and the length of the shaft body cannot be flexibly adjusted according to customer requirements, and the mass of the front shaft before construction is relatively large, which is not suitable for the future development trend of lightweight

Method used

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  • Automobile front axle and preparation method thereof
  • Automobile front axle and preparation method thereof
  • Automobile front axle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An automobile front axle, comprising a front axle body (3), a front axle left arm (1), a front axle right arm (4), a steel plate surface (2), overlapping parts (5), a front axle left arm (1), The right arm (4) of the front axle is respectively connected to both ends of the front axle body (3), and the steel plate surface (2) is welded to the upper parts of both ends of the front axle body (3). The front axle body (3) is a hollow structure, and the front axle Both sides of the main body (3) are sunken inwards, and the hollow part of the cross-section of the middle section of the front axle main body (3) is sunken in an I-shape.

[0037] The front axle left arm (1) and the front axle right arm (4) are located in the two ends of the front axle body (3) to form overlapping parts (5).

[0038] The concave position of the middle part of the front axle body (3) starts from the middle position of the front axle body (3) to any position on the side of the central axis of the ove...

Embodiment 2

[0059] Change preparation method parameter among the embodiment 1, concrete method is as follows:

[0060] (1) Cut the 40cr steel circular pipe with a wall thickness of 0.5 cm into 1.3-meter pipe blanks;

[0061] (2) Connect the right arm of the front axle and the left arm of the front axle to the tube blank, and place them in both ends of the tube blank to form overlapping parts;

[0062](3) Connect the overlapped parts through the fixing bolts, the fixing bolts pass through the left arm of the front axle, the right arm of the front axle and the tube blank of the front axle body, and seal the welding edge;

[0063] (4) Heat the front axle of the semi-finished product in step 3 to 850°C, and extrude the middle 1 / 3 of the length of the tube blank of the front axle body inward to form an I-shape;

[0064] (5) Weld the steel plate surface on the upper part of both ends of the front axle body;

[0065] (6) Oil cooling the product in step 5 after being quenched at 850 degrees, te...

Embodiment 3

[0067] (1) Cut 40cr steel elliptical pipe with a pipe wall thickness of 1 cm as raw material into a 1.6-meter pipe blank;

[0068] (2) Connect the right arm of the front axle and the left arm of the front axle to the tube blank, and place them in both ends of the tube blank to form overlapping parts;

[0069] (3) Connect the overlapped parts through the fixing bolts, the fixing bolts pass through the left arm of the front axle, the right arm of the front axle and the tube blank of the front axle body, and seal the welding edge;

[0070] (4) Heat the front axle of the semi-finished product in step 3 to 900°C, and extrude the middle 1 / 2 length of the tube blank of the front axle body inward to form an I-shape;

[0071] (5) Weld the steel plate surface on the upper part of both ends of the front axle body;

[0072] (6) The product in step 5 is oil-cooled after being quenched at 840 degrees, tempered at 570 degrees and air-cooled, and polished after cooling to become the front ax...

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Abstract

The invention relates to an automobile front axle and a preparation method thereof. The front axle comprises a front axle body (3), a front axle left arm (1), a front axle right arm (4), a steel platesurface (2) and a coincident part (5), wherein the front axle left arm (1) and the front axle right arm (4) are connected to the two ends of the front axle body (3) correspondingly, the steel plate surface (2) is welded to the upper parts of the two ends of the front axle body (3), and the front axle body (3) is of a hollow structure and concave to be I-shaped. According to the front axle, the manufacturing process is simple, the equipment investment is less, the die is easy to realize standardization, the type replacement is fast, the type replacement cost is low, the production preparationtime is short, the production process is few, the front axle is light in weight, the cost is low, and the strength is high.

Description

technical field [0001] The invention relates to an automobile supporting device, in particular to an automobile front axle and a preparation method thereof. Background technique [0002] The front axle of the car mostly adopts the I-shaft shaft body, and the I-shaft is formed by forging as a whole, and the section is in the shape of "I", so it is called "I-shaft". The I-shaped shaft and the front leaf spring seat are forged into one body. In order to avoid interference with the engine oil pan, there is a downward drop in the middle. The material of the I-shaped shaft is generally made of Cr steel and has been modulated. The design will reduce the mass as much as possible under the premise of ensuring the strength. In addition to bearing the weight of the car, the front axle assembly also bears the vertical load between the ground and the frame, the braking force, the lateral force, and the bending moment caused by the lateral force. [0003] The existing vehicle I-shaped f...

Claims

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Application Information

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IPC IPC(8): B60B35/02B23P15/00
CPCB23P15/00B60B35/02
Inventor 黄洪胜
Owner 南平市建阳区波特安电子科技有限公司
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