CN1373058A

CN1373058A - Axle shell for (15-30)-ton truck and its manufacture technology

Info

Publication number: CN1373058A
Application number: CN 02115691
Authority: CN
Inventors: 郑化林
Original assignee: LUSHAN AXLE CO Ltd SHIYAN
Current assignee: LUSHAN AXLE CO Ltd SHIYAN
Priority date: 2002-04-04
Filing date: 2002-04-04
Publication date: 2002-10-09

Abstract

An axle casing for (15-30)-ton truck is composed of middle axle casing and rear axle casing, and is characterized by that an R arc is arranged between the internal cavity and end flange and the reinforcing boss with oil hole is positioned on radical central line of rear axle casing. It is made up through the casting step including proportioning, melting, casting, removing sand, annealing and antirusting, and the machining step including coarse boring, turning, milling end faces, fine boring, pressing sleeve pipe and milling supporting arms. Its advantages are reasonable structure, high mechanical performance, and simple technology.

Description

15-30 ton heavy goods vehicles axle housing and processing technology thereof

Technical field: the present invention relates to a kind of 15-30 ton heavy goods vehicles axle housing and processing technology thereof

Background technology: 10 tons of higher level heavy goods vehicles back axles of tradition adopt alloy steel punching press welded structure, and the processing technology difficult point is many, and manufacturability is poor, quality be cannot say for sure card, and high temperature resistant, low cold can on have open defect: easily curved during high temperature, lowly easily produce brittle failure when cold.I mention in application number is the application for a patent for invention of 01033672.2 back axle shell for heavy truck and adopt casting method to make back axle shell for heavy truck, but concrete manufacture craft is not arranged.

Summary of the invention: the present invention is in order to solve the problem of conventional heavy-duty car rear-axle casing processing technology complexity and manufacturability difference, a kind of 15-30 ton heavy goods vehicles axle housing and processing technology thereof are proposed, axle housing and rear-axle casing during this heavy goods vehicles axle housing comprises, it is characterized in that: the die cavity of axle housing and rear-axle casing is inner in described is provided with the R radian with two end flanges opposite positions, the boss that plays booster action is positioned on the radial centre lines of described rear-axle casing, on the described boss oil through is arranged.Its processing technology comprises foundry technique and mechanical processing technique; Described foundry technique is: batching-fusing-casting-sand removal-annealing-surface is antirust; Described mechanical processing technique is: heavy boring-car flange and cylindrical-combination end face milling-right boring-gland pipe-mill supporting arm.This axle housing is rational in infrastructure, good mechanical property, and bearing capacity is strong; And technology is simple, and is easy to process, good manufacturability.

Description of drawings: Fig. 1,15-30 ton heavy goods vehicles jackshaft shell structure scheme drawing of the present invention;

Fig. 2,15-30 ton back axle shell for heavy truck structural representation of the present invention.

The specific embodiment: 15-30 ton heavy goods vehicles vehicle bridge is a doube bridge, comprise jackshaft and back axle, as shown in Figure 1, the die cavity of axle shell 1 is inner in this heavy goods vehicles is provided with R radian 3 with two end flanges, 2 opposite positions, its arc length 80-150mm, purpose is to strengthen the bearing capacity of whole bridge; As shown in Figure 2, the die cavity of this heavy goods vehicles rear axle case 4 and outward flange 5 opposite positions also are provided with R radian 6, its arc length 80-150mm, and purpose is still strengthened the bearing capacity of whole bridge, is positioned at 7 booster actions of boss on the radial centre lines, and oil through 8 is arranged on the boss 7.Its concrete processing technology is: will contain the sand removal annealing of casting after V Ti nodular cast iron melts, be processed into jackshaft and back axle blank by foundry technique, respectively jackshaft, rear axle case blank are carried out machinework again, the process flow of middle axle shell mechanical processing technique is: rough bore; Car flange position and cylindrical; Both ends of the surface are milled in combination; The right boring hole; Bore the flange hole tapping; Bore location hole, tapping; Mill four supporting arm positions to size; Bore hole on the supporting arm; Press axle tube, and compress in its cooperation place boring and tightly to plug with molten metal pin.The mechanical processing technique of rear-axle casing is car two end flanges and oil sealing rim of the mouth, it is two-sided that the Chinese lute hole is milled in combination, and bore hole bores aperture, tapping on flange hole and the Chinese lute simultaneously, the gland pipe, mill successively the steel plate support, on connect the two-sided and boring of support arm, connect back axle two and hang the two-sided and boring of booms.Check is at last put in storage.This mechanical performance of products is good: tensile strength sigma b 〉=160Mpa; Yield strength σ 0.2 〉=320Mpa; Elongation rate δ 〉=10%; Hardness HB170 ~ 220.

Claims

1, a kind of 15-30 ton heavy goods vehicles axle housing, axle housing and rear-axle casing in comprising, it is characterized in that: the die cavity of axle housing and rear-axle casing is inner in described is provided with the R radian with two end flanges opposite positions, and the boss that plays booster action is positioned on the radial centre lines of described rear-axle casing, on the described boss oil through is arranged.

2, heavy goods vehicles axle housing as claimed in claim 1 is characterized in that: the arc length of described R radian is 80mm-150mm.

3, the processing technology of heavy goods vehicles axle housing as claimed in claim 1, its concrete technology comprises foundry technique and mechanical processing technique; Described foundry technique is: batching-fusing-casting-sand removal-annealing-surface is antirust; Described mechanical processing technique is: heavy boring-car flange and cylindrical one combination end face milling-right boring-gland pipe-mill supporting arm.