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A heat treatment equipment for combined forgings of driven spiral bevel gears

A technology for spiral bevel gears and forgings, applied in the field of driven spiral bevel gear combined forgings, can solve the problems of limited number of workpieces, low efficiency, high labor intensity, etc., and achieve the effect of improving heat treatment efficiency, meeting matching requirements and saving weight

Active Publication Date: 2018-12-11
SHANDONG WENLING PRECISION FORGING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] 1. The efficiency is low, the number of workpieces processed each time is limited, and continuous production cannot be formed
[0014] 2. The process is complicated. After the existing furnace is heated up, it is necessary to continue to manually take out the workpiece, and then manually load the new workpiece. On the one hand, the labor intensity is high, and on the other hand, the temperature of the workpiece is released in the workshop, resulting in waste

Method used

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  • A heat treatment equipment for combined forgings of driven spiral bevel gears
  • A heat treatment equipment for combined forgings of driven spiral bevel gears
  • A heat treatment equipment for combined forgings of driven spiral bevel gears

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Embodiment Construction

[0039] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

[0040] figure 1 As shown, a combined forging of driven bevel gears includes a driven spiral bevel gear 2 and a differential case 1 on one side of the gear.

[0041]The combined passive bevel gear forging of this embodiment is formed by die forging, so the ring gear 2 (gear) and the housing body 1 of this embodiment are an integrated forging structure, rather than the original bolt-fastened structure.

[0042] A pre-forging heat treatment process for driven spiral bevel gear combined forgings. Before the forging of the workpiece, the blank is heated at medium frequency for 2 minutes to 1100±50°C, and then a 2-ton air hammer is used for upsetting, and a 4,000-ton spiral The press is used for closed die forging, and then punched with a 300-ton punch.

[0043] The commonly used pre-heat treatment process for forging blanks of automotive transmission gears...

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Abstract

The invention discloses a novel pit-type vacuum heat treatment furnace and a heat treatment process thereof. The vacuum heat treatment furnace comprises a furnace body 1, a cover body 2 and a motor 3 which is arranged on the top of the cover body 2 and provided with stirring wings. A groove is formed in the top end of the furnace body 1 along the periphery of the furnace body 1. A boss capable of being buckled in the groove is formed in the peripheral direction of the cover body 2. When sealing is conducted, the boss is buckled in the groove, the groove is filled with fine sand at the joint of the groove and the boss, and thus the joint of the groove and the boss is covered. Due to the fact that the joint of the groove and the boss is covered with the fine sand, no sealing ring is used any more, and the use cost of the heat treatment furnace is greatly lowered; meanwhile, the situation that a sealed position is not sealed completely due to deformation of a sealing ring is avoided, and the vacuum state is maintained all the time in the heat treatment procedure. By the adoption of the process method, the heat treatment process level and the metallicity of parts are improved.

Description

[0001] This is a divisional application with the patent application number "2015103704415", the invention name "differential housing and its forging process forging equipment", and the filing date "2015-06-30". technical field [0002] The invention relates to a combined forging of a driven spiral bevel gear, in particular a driven spiral bevel gear and a differential case located on one side of the gear are of an integrated forging structure. Background technique [0003] Spiral bevel gears are key components of automotive drive axle transmission systems. In the process of automobile transportation, it is responsible for reducing speed, increasing torque, and changing the direction of torque transmission. The working conditions of the spiral bevel gear of the drive axle main reducer are quite harsh. Compared with other gears in the transmission system, it has the characteristics of large load, long action time, many changes, and bearing impact. [0004] The spiral bevel ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/32
CPCB23P15/14C21D9/32F16H55/17
Inventor 葛希佩贾雨纪宝华
Owner SHANDONG WENLING PRECISION FORGING TECH
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