Processing method of herringbone gear for heavy machinery

A technology of heavy machinery and processing methods, which is applied in the processing field of herringbone gears for heavy machinery, can solve problems such as cutting, damage, and reducing the bearing capacity of herringbone gears, so as to improve machining accuracy and efficiency, reduce design dimensions, The effect of saving raw materials

Inactive Publication Date: 2018-11-06
中实洛阳重型机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there are two ways to process herringbone teeth: one is single-index milling with a milling cutter; the other is hobbing with a hob; but there are certain size requirements for empty sipes; according to conventional Technology and experience, if a single-index milling cutter is used to process helical teeth, the smoothness and pitch tolerance cannot be guaranteed, and at least ten milling cutters need to be customized. Abrasiveness; if the hob is used for machining, there is a requirement for the width of the empty groove; currently, in the process of processing herringbone gears, the hob is generally used, and the ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1. Scribing of the gear blank: draw the helical line of the left-handed gear and the right-handed gear with the scribing tool according to the size requirements and technical requirements of the drawing. The accuracy of the scribing is required to be 0.5 ㎜; the alignment tolerance between the extension line of the spiral line of the left-handed gear and the right-handed gear and the center line of the empty sipe is 1mm;

[0027] Step 2. Clamp and install the position of the calibration disc milling cutter: the gear blank to be processed is concentric with the worktable of the gear hobbing machine, the radial runout is controlled at 0.1mm, and it is pressed and fixed on the gear hobbing machine;

[0028] Step 3: Rough tooth opening with a disc milling cutter: On the basis of step 2, use a disc milling cutter to rough open the left-handed teeth of the gear blank according to the drawn helical line, and then perform rough tooth cutting on the other side of the gear bla...

Embodiment 2

[0033] Step 1. Scribing of the gear blank: draw the helical line of the left-handed gear and the right-handed gear with the scribing tool according to the size requirements and technical requirements of the drawing. The accuracy of the scribing is required to be 0.5 ㎜; the alignment tolerance between the extension line of the spiral line of the left-handed gear and the right-handed gear and the center line of the empty sipe is 1mm;

[0034]Step 2. Clamp and install the position of the calibration disc milling cutter: the gear blank to be processed is concentric with the worktable of the gear hobbing machine, the radial runout is controlled at 0.1mm, and it is pressed and fixed on the gear hobbing machine;

[0035] Step 3: Rough tooth opening with a disc milling cutter: On the basis of step 2, use a disc milling cutter to rough open the left-handed teeth of the gear blank according to the drawn helical line, and then perform rough tooth cutting on the other side of the gear blan...

Embodiment 3

[0040] Step 1. Scribing of the gear blank: draw the helical line of the left-handed gear and the right-handed gear with the scribing tool according to the size requirements and technical requirements of the drawing. The accuracy of the scribing is required to be 0.5 ㎜; the alignment tolerance between the extension line of the spiral line of the left-handed gear and the right-handed gear and the center line of the empty sipe is 1mm;

[0041] Step 2. Clamp and install the position of the calibration disc milling cutter: the gear blank to be processed is concentric with the worktable of the gear hobbing machine, the radial runout is controlled at 0.1mm, and it is pressed and fixed on the gear hobbing machine;

[0042] Step 3: Rough tooth opening with a disc milling cutter: On the basis of step 2, use a disc milling cutter to rough open the left-handed teeth of the gear blank according to the drawn helical line, and then perform rough tooth cutting on the other side of the gear bla...

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PUM

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Abstract

The invention discloses a processing method of a herringbone gear for heavy machinery. The processing method comprises the steps of (1) marking a gear blank; (2) clamping, installing and calibrating the position of a disc milling cutter; (3) performing coarse hobbing by utilizing the disc milling cutter; (4) installing and calibrating the gear blank and a hob; (5) performing finish machining on the gear blank by utilizing the hob; and (6) inspecting after the herringbone gear is formed. According to the processing method of the herringbone gear for heavy machinery, the machining precision andefficiency of the herringbone gear for heavy machinery are greatly increased, and the working area of the integrated forming tooth surface reaches 90% and meets the specification that the contact tooth length is greater than 60% at the initial stage of open gear transmission in the national standard; additionally, the tooth surface finish reaches Ra3.2; and the design size in the design of gear shafts, gears, box bodies and the like in the field of speed reducers and the like can be reduced by adopting the processing method in the condition that the same working bearing performance of the gearis guaranteed, so that raw materials are saved by at least 8% to 10%.

Description

technical field [0001] The invention relates to the technical field of processing herringbone gears for heavy machinery, in particular to a processing method for herringbone gears for heavy machinery. Background technique [0002] Herringbone gears for heavy machinery have the advantages of strong bearing capacity, stable transmission, self-centering, and small axial loads, and are widely used in the transmission system of heavy machinery; The upper part of the gear is right-handed, and the other part is left-handed; the herringbone gear needs to be processed separately on both sides of the gear end face. [0003] In the prior art, there are two ways to process herringbone teeth: one is single-index milling with a milling cutter; the other is hobbing with a hob; but there are certain size requirements for empty sipes; according to conventional Technology and experience, if a single-index milling cutter is used to process helical teeth, the smoothness and pitch tolerance can...

Claims

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Application Information

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IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 李纯祥唐富强张瑾
Owner 中实洛阳重型机械有限公司
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