Reduction gearbox shell casting process

A casting process and reduction box technology, applied in the field of reduction box shell casting technology, can solve the problems of unreasonable design of gating system, unreasonable design of exhaust device, inability to process reduction box shell, etc. The effect of reducing cold isolation and porosity defects

Active Publication Date: 2015-07-22
江苏力源金河铸造有限公司
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, due to the unreasonable design of the gating system, it is impossible to process the gearbox shell with a wall thickness of only 6mm, and it is easy to cause cold shutting during the pouring process; The unreasonable design of the gas device will produce a lar

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reduction gearbox shell casting process
  • Reduction gearbox shell casting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Such as figure 1 As shown, the present invention discloses a casting process for the gearbox housing, the process steps are as follows:

[0022] (1) Sand mix: mix molding sand and oil core sand as required;

[0023] (2) Mold preparation: when designing the mold, the mold includes sand box 1, sand mold 2, sand core 3 and pouring system 4;

[0024] The sand box 1, the sand mold 2 and the sand core 3 built in the sand mold together constitute the pouring cavity. There are four pouring cavities in matrix distribution, and the four pouring cavities are connected through the pouring system;

[0025] The gating system 4 includes a sprue 9, a runner 11 and a pair of auxiliary runners 5 respectively arranged between two adjacent casting cavities on both sides, and the casting cavity is at the flange of the input end of the gearbox housing It has an inner gate 12, and a pair of auxiliary inner gates 6 on both sides of the inner output end face of the gearbox housing; the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates a reduction gearbox shell casting process, which comprises the following steps: preparing molding sand and oil core sand first, then preparing a mold, wherein the mold comprises a sand box, a sand mold, a sand core and a pouring system; the pouring system comprises a sprue, cross gates and a pair of auxiliary cross gates arranged between two pouring cavities the sides of which are adjacent to each other; the sprue is vertically arranged at the center of four pouring cavities; an outer sprue is formed in the top of the sprue; the bottom end of the sprue is communicated with the inner sprue of a corresponding pouring cavity through cross gates at two sides and a cross gate; and finally the product is put in storage after falling sand cleaning checking. The reduction gearbox shell casting process has the advantages that the mold is reasonable in design and high in work efficiency; the auxiliary cross gates are additionally arranged in the mold design and the pouring temperature is controlled, so that the phenomena of cold shut and hot spot are reduced; by virtue of the oil sand core prepared during tool preparation, the surface of a casting is smooth; by virtue of a hollow molding core and exhaust pins distributed at equal intervals, the ventilation is facilitated and the pore defect is avoided.

Description

technical field [0001] The invention relates to a gear box shell, in particular to a casting process for the gear box shell. Background technique [0002] The gearbox is a necessary part of the reducer, and it is mainly cast, such as figure 2 A gearbox housing is shown, which comprises a housing body and an input 14 and two output 15 and 16 . [0003] At present, due to the unreasonable design of the gating system, it is impossible to process the gearbox shell with a wall thickness of only 6mm, and it is easy to cause cold shutting during the pouring process; The unreasonable design of the gas device will produce a large number of pores, and the product quality will decline; therefore, it is urgent to develop a casting manufacturing process that can cast a wall thickness of only 6mm or less. After searching, it is not found that the same as the present invention or similar technical solutions. Contents of the invention [0004] The technical problem to be solved by the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B22C9/24B22C9/08B22C1/00
CPCB22C1/00B22C9/08B22C9/24
Inventor 丁晓斌
Owner 江苏力源金河铸造有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap