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Technology for manufacturing stationary cam and movable disk cam component of transmission box of crop harvester

A technology for fixing cams and harvesters, which is applied in the field of metal parts manufacturing technology, can solve the problems affecting the normal use of crop harvesters, high processing accuracy requirements, and many machining processes, and achieves high density, material saving, and high wear resistance. sexual effect

Inactive Publication Date: 2012-05-30
TAIZHOU KECHENG AUTOMOBILE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This manufacturing process is a traditional one, and the process is relatively mature, but there are some shortcomings: the material utilization rate in the manufacturing process is only about 50%, and there are many machining processes and high processing precision requirements; complex heat treatment processes are required to ensure that the manufactured The fixed cam and the movable disc cam of the crop harvester gearbox have high mechanical properties and hardness, and the process is difficult; when the fixed cam and the movable disc cam of the crop harvester gearbox are meshed and rubbed under a large load, adhesion and mutual seizure are prone to occur Phenomenon, which seriously affects the normal use of the crop harvester

Method used

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with embodiment.

[0020] The manufacturing process of the fixed cam and the movable disc cam assembly of the crop harvester gearbox. The fixed cam and the movable disc cam assembly of the crop harvester gearbox are composed of a group of alloy powder materials according to mixing → initial pressing → pre-firing → re-pressing → re-firing → Finishing→cutting→surface steam blackening process, which includes the following steps:

[0021] 1) Mixing: Put the components of the alloy powder material into a sealed container according to the weight ratio, and uniformly stir and mix them in a mixer to form a pre-alloy powder; the weight ratio is: Cu 6-8%, Ni 1 ~4%, Mo 0.5~1%, S 0.2~0.5%, C 1~2%, zinc stearate 0.5%, and the rest is Fe powder; the particle size of the alloy powder is ≥100 mesh, and the Fe powder is made of high-quality atomized iron pink;

[0022] 2) Initial pressure: Fill the pre-alloyed powder...

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Abstract

The invention discloses a technology for manufacturing a stationary cam and movable disk cam component of a transmission box of a crop harvester. The stationary cam and movable disk cam component of the transmission box of the crop harvester is made from an alloy powder material according to the processes of mixing, primarily pressing, pre-sintering, re-pressing, re-sintering, finishing, machining and surface steam blacking, wherein the alloy powder material comprises the following components by weight pecent: 6-8% of Cu, 1-4% of Ni, 0.5-1% of Mo, 0.2-0.5% of S, 1-2% of C, 0.5% of zinc stearate and the balance of Fe powder. The technology disclosed by the invention is simple, technology difficulty is low, materials can be obviously saved, and the stationary cam and movable disk cam component of the transmission box of the crop harvester which has high compactness, high strength and high abrasion resistance and can not cause mutual seizure phenomenon during meshing friction under higher load can be manufactured by adopting the manufacturing technology.

Description

technical field [0001] The invention relates to a manufacturing process of metal parts, more specifically, the invention relates to a manufacturing process of a fixed cam and a moving disc cam assembly of a crop harvester gearbox. Background technique [0002] The fixed cam and moving disc cam assembly of the crop harvester gearbox are the main bearing parts of the crop harvester gearbox. The fixed cam and the moving disc cam assembly of the crop harvester gearbox on the market are forged into blanks with 20CrMnTi bar stock. It is made by heat treatment after cutting in multiple machining processes. This manufacturing process is a traditional one, and the process is relatively mature, but there are some deficiencies: the utilization rate of materials in the manufacturing process is only about 50%, and there are many machining processes and high processing precision requirements; complex heat treatment processes are required to ensure that the manufactured The fixed cam and ...

Claims

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Application Information

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IPC IPC(8): B23P15/14
Inventor 徐华平丁根富包青山陆秀华石勇钱军
Owner TAIZHOU KECHENG AUTOMOBILE PARTS
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