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Production process of large truck hub brake spring A

A production process and technology of brake springs, which are applied in the direction of manufacturing tools, wire processing, and springs from wires, etc., can solve the problems of the harsh working environment of the brake spring A of the wheel hub of a large truck and the inability of the brake spring of the wheel hub of the large truck to meet the performance requirements, etc. To achieve the effect of improving fatigue life

Inactive Publication Date: 2020-09-25
无锡市金新阳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] like figure 1 As shown, the hub brake spring A of this large truck mainly consists of a left tension spring A1, a right tension spring A2 and a tension spring connecting rod A3. The left tension spring A1 and the right tension spring A2 are respectively located at both ends of the tension spring connecting rod A3. This kind of large truck wheel brake spring A is used on large trucks, and the working environment of large truck wheel brake spring A is more harsh, so the performance requirements of large truck wheel brake spring A are more stringent. The existing production process produces large truck wheel brake springs. A cannot meet performance requirements

Method used

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  • Production process of large truck hub brake spring A
  • Production process of large truck hub brake spring A
  • Production process of large truck hub brake spring A

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] Embodiment: a kind of production technology of big truck hub brake spring A, as figure 2 shown, including the following steps:

[0029] Forming of S1, left extension spring A1 and right extension spring A2:

[0030] The first step: prepare SWPB material, SWPB is piano steel wire, its material composition: C: 0.80-0.85, Si: 0.12-0.32, Mn: 0.3-0.6, P: below 0.025, S: below 0.025, Cu: 0.2 the following. According to the design structure of the left extension spring A1 and the right extension spring A2, through computer programming, the SWPB material is wound into a semi-finished product using an eight-claw machine.

[0031] The second step: Put the semi-finished product into the tempering furnace for stress relief treatment. The tempering furnace heats the semi-finished product to 300°C, and performs stress relief treatment at 300°C for 30 minutes to obtain the left tension spring A1 and the right tension spring A2. .

[0032] S2. Molding of tension spring connecting ...

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Abstract

The invention discloses a production process of a large truck hub brake spring A, and belongs to the field of brake spring production processes. The production process is technically characterized bycomprising the following steps that S1, a left tension spring A1 and a right tension spring A2 are formed; S2, a tension spring connecting rod A3 is formed; S3, the large truck hub brake spring A is assembled, wherein the tension spring connecting rod (A3), the left tension spring (A1) and the right tension spring (A2) are placed in an oil press mold, and oil pressure assembly is carried out through the oil press mold to obtain a semi-finished product of the large truck hub brake spring (A); S4, shot blasting treatment is conducted, and specifically, shot blasting treatment is conducted on thesemi-finished product of the large truck hub brake spring (A); S5, tempering and destressing are conducted, and specifically, the large truck hub brake spring (A) treated in the S4 is put into a tempering furnace to be heated to complete tempering and destressing; S6, length detection is carried out; S7, surface phosphating treatment is carried out; and S8, packaging and warehousing are carried out, and specifically the finished product of the large truck hub brake spring (A) is packaged and warehoused. The production process has the advantage of improving the usability of the large truck hubbrake spring A.

Description

technical field [0001] The invention relates to the field of brake spring production technology, in particular to a production technology of a large truck wheel hub brake spring A. Background technique [0002] Braking is commonly known as "braking". Refers to the action of stopping or reducing the speed of running locomotives, vehicles and other means of transport or machinery. The general principle of braking is to fix a wheel or disc on the high-speed shaft of the machine, install a corresponding brake shoe, belt or disc on the machine base, and make it generate braking torque under the action of external force. One of the indispensable parts in the braking system of a car is the hub brake spring. When braking, the hub brake spring will be subjected to a large force, so the requirements for the performance of the hub brake spring are very high. [0003] Such as figure 1 As shown, the hub brake spring A of this large truck mainly consists of a left tension spring A1, a ...

Claims

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Application Information

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IPC IPC(8): B21F35/00C21D9/02C21D1/30B23P23/06
CPCB21F35/00B23P23/06C21D1/30C21D9/02
Inventor 郭晓健商玉流
Owner 无锡市金新阳科技有限公司
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