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Machining method of duplicate gear

A double gear and processing method technology, applied in the field of mechanical processing, can solve the problems of low processing accuracy, low tooth hardness, inconvenient positioning, etc., and achieve the effects of high processing accuracy, improved overall life, and easy wear

Active Publication Date: 2019-09-24
HARBIN TURBINE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing duplex gears are inconvenient to locate during processing, resulting in low machining accuracy, low tooth profile hardness and easy wear, the present invention further proposes a machining method for duplex gears

Method used

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specific Embodiment approach 1

[0019] Specific implementation mode one: combine Figure 1 to Figure 2 Describe this embodiment, the processing method of a kind of dual gear described in this embodiment comprises the following steps:

[0020] Step 1: Forging blanks: select two steel blanks, and forge the blanks separately;

[0021] Step 2: Rough turning: Two blanks are rough turned on a horizontal lathe respectively, the outer circle, end surface and inner hole of the large gear 1 of the double gear are roughly machined, and the outer circle of the pinion 2 of the double gear is roughly machined. For circle, end face and inner hole, 3mm machining allowance is left on each face;

[0022] Step 3: quenching and tempering treatment: heat treat the two blanks to HRC31-35 respectively;

[0023] Step 4: Finish turning: Two blanks are respectively finished turning on a horizontal lathe. During finish turning, a machining allowance of 0.2-0.3 mm is left on each end face of the large gear 1 and pinion 2, and the lar...

specific Embodiment approach 2

[0030] Specific implementation mode two: combination Figure 1 to Figure 2 This embodiment is described. In step six of this embodiment, after the cylindrical pin 4 is assembled in the pin hole 3 , caulking is performed on both sides between the pin hole 3 and the cylindrical pin 4 . The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0031] Such a design makes the two gears fit firmly, the positioning between the two gears is accurate, and the tooth profile is processed after the assembly is completed, so that the processing precision of the gears is high.

specific Embodiment approach 3

[0032] Specific implementation mode three: combination Figure 1 to Figure 2 To describe this embodiment, in the sixth step of this embodiment, the transition fit between the pin hole 3 and the cylindrical pin 4 is performed. The undisclosed technical features in this embodiment are the same as those in the first or second specific embodiment.

[0033] This is designed to achieve precise positioning between the bull gear 1 and the pinion 2.

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Abstract

The invention provides a machining method of a duplicate gear and relates to the technical field of mechanical machining. The method solves the problems that when an existing duplicate gear is machined, locating is inconvenient, machining precision is low, meanwhile, the hardness of the gear profile is low, and abrasion is caused easily. The manufacturing method comprises the steps of blank forging, rough turning machining, thermal refining, finish turning machining, grinding machining, benching, wire-electrode cutting machining, gear profile treatment and labeling. The method is used for machining the duplicate gear.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a processing method for dual gears. Background technique [0002] The duplex gear is a transmission part of the machine tool equipment. It is an integrated structure of two gears of different sizes. The gear is a wearable part. Due to the different forces on the duplex gear, the tooth profile is easy to wear and damage. However, when the existing duplex size is being processed, because the two gears are fixedly connected as one, it is not convenient for positioning, resulting in low processing accuracy. Contents of the invention [0003] In order to solve the problems of inconvenient positioning during processing of the existing double gears, resulting in low machining accuracy, low tooth profile hardness and easy wear, the present invention further proposes a processing method of the double gears. [0004] The technical scheme that the present invention takes fo...

Claims

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Application Information

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IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 孙盛丽李辉张学泳魏成双刘剑姜秀英岳云淼叶云青
Owner HARBIN TURBINE
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