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Processing technique of planet carrier of coal cutter

A processing technology and planet carrier technology, which is applied in the field of processing technology of the planet carrier of the coal mining machine, can solve the problems of difficulty in guaranteeing precision, low production efficiency, and long processing time, so as to ensure the processing surface accuracy, high processing efficiency and utilization rate high effect

Inactive Publication Date: 2014-01-15
常熟天地煤机装备有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The whole processing time is long, but the accuracy is difficult to guarantee, it requires a lot of labor, and the production efficiency is low and low

Method used

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Experimental program
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Embodiment Construction

[0011] The present invention will be further described below in conjunction with embodiment.

[0012] Taking the planetary frame of a coal shearer processed by a turn-milling compound machining center as an example, the processing methods include blank forging or casting, stress relief heat treatment, chemical composition sampling analysis, rough machining, flaw detection, quenching and tempering, and finishing machining. During rough machining, install the calibration workpiece on the worktable of the turning-milling compound machining center, put the splined end of the workpiece to be processed upwards, use the "right-angle milling head" to install the milling cutter, let the milling cutter feed horizontally, and mill in the circumferential direction For the four holes for installing the planetary wheel, leave a finishing allowance of 2.5 mm on one side; turn the end face and outer circle of the spline end, drill and bore the inner hole, leave a finishing allowance of 1.5 mm ...

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Abstract

The invention discloses a processing technique of a planet carrier of a coal cutter. The processing technique of the planet carrier of the coal cutter comprises the steps of workblank forging or casting, destressing heat treatment, chemical component sampling and analyzing, rough machining, flaw detection, hardening and tempering, and finish machining. The finish machining relates to the steps of (1) milling four holes for installation of a planet wheel in the circumferential direction; (2) finish-turning the end face of a spline end and an outer circle, drilling, boring and reaming an inner hole, punching and tapping; (3) milling a spline; (4) turning around a workpiece to finish-turn the end face of the other end and an outer circle, and drilling, boring and reaming an inner hole. All steps of the rough machining and all steps of the finish machining are achieved on one machining device. According to the processing technique of the planet carrier of the coal cutter, multi-step machining is achieved by means of the one machining device, and therefore the integration level is high; due to the fact that grinding is replaced with turning during the finish machining, machining efficiency is improved, and the accuracy of a finished surface can be guaranteed.

Description

technical field [0001] The invention relates to a processing method of a planetary frame, more specifically, relates to a processing method of a planetary frame of a coal mining machine, which belongs to the processing technology of mechanical parts. Background technique [0002] The planetary carrier is one of the main components of the planetary gear transmission. The parts connected with the planetary gear include a water seal seat (directly connected by bolts), a connecting sleeve, a bearing seat, a rocker arm, a planetary gear, and a sun gear. As a basic component, the planetary gear is the part that bears the largest external moment in the gear transmission mechanism; the manufacturing accuracy of the planetary gear plays a decisive role in the load distribution among the various planetary gears and even the transmission device. [0003] The existing machining process of the planet frame of the coal mining machine includes normalizing heat treatment, chemical compositi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14B23P23/00
CPCB23P15/14
Inventor 彭泽军戴建平
Owner 常熟天地煤机装备有限公司
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