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Gear ring forming process

A molding process and ring gear technology, which is applied to casting molding equipment, molds, cores, etc., can solve problems such as low production efficiency, poor impact toughness, and coarse metal grains of castings, so as to reduce labor intensity and realize The effect of mechanical automation and dense metallographic structure

Pending Publication Date: 2022-01-28
福建省四轮工程机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process is simple, but at the same time, the ring gear castings use a lot of sea sand and solid waste, which pollutes the environment and consumes a lot of energy; the castings have defects such as pores, sand holes, inclusions, surface unevenness, and cracks; the castings have low density and small specific gravity (7.3-7.65g / cm 3 ), the production efficiency is low; the casting metal grains are coarse, and the impact toughness is poor

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0035] Ring gear molding process of the present invention comprises the following steps:

[0036] S1 billet forming: smelting the manganese steel alloy in the open hearth furnace to make the manganese steel alloy into a molten state, casting the molten manganese steel alloy into the ring gear mold to form the ring gear blank ring 14;

[0037] S2 quenching and tempering treatment: taking out the ring gear blank ring 14, and transporting the ring gear blank ring 14 to the incubator 5 through an automatic conveying device for quenching and tempering treatment;

[0038] S3 Forming: Take out the ring gear blank ring 14 after quenching and tempering treatment, and form the ring gear body by machining.

[0039] After adopting the above-mentioned technical scheme: the manufacturing process of the fire ring gear of the present invention no longer uses traditional ring gear manufacturing processes such as sea sand for casting, modeling sand, steam cutting, etc., which has a positive eff...

Embodiment 2

[0041] The automatic conveying device includes a conveying unit 1, the ring gear blank ring 14 is horizontally placed on the upper end of the conveying unit 1, and the conveying unit 1 is provided with an overturning assembly 2 at the rear along the conveying direction, and the overturning assembly 2 is used to make the ring gear blank ring 14 in an inclined state, The top of the conveying unit 1 is provided with a transfer assembly 3, the lower end of the transfer assembly 3 is provided with a horizontal drive assembly, the overturn assembly 2 is provided with an incubator 5 side by side, the incubator 5 is provided with a suspension assembly 6, and the transfer assembly 3 is used to turn the overturn assembly 2. The ring gear blank ring 14 at the upper end is transferred to the suspension assembly 6.

[0042]After adopting the above technical solution: the conveying unit 1 is a roller conveying line as one of the preferred structures, and the ring gear blank moves horizontall...

Embodiment 3

[0044] The turning assembly 2 includes a side guard 201, a turning plate 206, a pin 204 and a hydraulic rod 203; the side guard 201 is arranged behind the conveying unit 1 along the conveying direction, and the turning plate 206 is hinged to the side guard 201 through the pin 204. , the pin shaft 204 is located at the end of the turnover plate 206 away from the delivery unit 1, the upper end of the hydraulic rod 203 is hinged to the lower end of the end of the flip plate 206 away from the pin shaft 204, the lower end of the hydraulic rod 203 is provided with a support plate 202, and the hydraulic rod 203 is connected to the The support plate 202 is hingedly arranged.

[0045] A limiting plate 205 is disposed on the upper end of the turnover plate 206 , and the limiting plate 205 is located on a side away from the conveying unit 1 .

[0046] After adopting the above technical scheme:

[0047] The overturning plate 206 can rotate around the axis of the pin shaft 204 to change t...

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Abstract

The invention discloses a gear ring forming process, and relates to the technical field of gear ring forming processes. The gear ring forming process comprises the following steps that S1 blank forming is conducted, specifically, manganese steel alloy is smelted in a medium open furnace to be in a molten state, the manganese steel alloy in the molten state is cast into a gear ring mold, and a gear ring blank ring is formed; S2 quenching and tempering treatment are conducted, specifically, the gear ring blank ring is taken out and conveyed into a heat preservation box through an automatic conveying device for quenching and tempering treatment; and S3 forming is conducted, specifically, the quenched and tempered gear ring blank ring is taken out, and a gear ring body is formed through machining. The gear ring blank ring is cast, then the blank material is transferred into the heat preservation box through the automatic device for heat quenching and tempering, the internal quality of the gear ring blank ring is improved, manual operation is not needed in the transferring process, and the manual labor intensity is reduced.

Description

technical field [0001] The invention relates to the technical field of ring gear forming technology, in particular to a ring gear forming technology. Background technique [0002] The ring gear is the component that plays the role of connecting and driving the construction machinery. It is widely used in various construction machinery such as excavators, forklifts, bulldozers, loaders, etc. For a long time, it has been mainly used in the production process of casting parts. The production process is simple, but at the same time, the ring gear castings use a lot of sea sand and solid waste, which pollutes the environment and consumes a lot of energy; the castings have defects such as pores, sand holes, inclusions, surface unevenness, and cracks; the castings have low density and small specific gravity (7.3-7.65g / cm 3 ), the production efficiency is low; the metal grains of castings are coarse, and the impact toughness is poor. [0003] For this reason, there is an urgent n...

Claims

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Application Information

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IPC IPC(8): C21D9/32C21D1/25B22C9/28
CPCC21D9/32C21D1/25B22C9/28Y02P10/20
Inventor 魏茂宝
Owner 福建省四轮工程机械有限公司
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