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Casting process of speed reducer shell

A casting process and reducer technology, which is applied in the casting process field of the reducer housing, can solve the problems such as the service life of the reducer housing needs to be improved, the service life of the gear is shortened, and the transmission efficiency of the reducer is reduced, so as to achieve long service life, Strong impact resistance and high seismic strength

Inactive Publication Date: 2021-02-23
徐州木林森机械配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the shell rigidity is not enough, it will not only reduce the transmission efficiency of the reducer but also shorten the service life of the gear
The rigidity and service life of the reducer housing cast by the existing casting process of the reducer housing still need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A casting process for a reducer housing, the material of the reducer housing is Q235AF steel, the thickness of the Q235AF steel is 10mm, and the casting process includes the following steps:

[0023] (1) Steel plate straightening: put Q235AF steel on a steel plate straightening machine for straightening, including steel plate passing through multiple pairs of rollers arranged in a staggered arrangement, and repeated bending for many times, so that the fiber dimensions of each layer tend to be consistent. The rollers include three Yes, it is set up in two rows, with two teams in the upper row and one pair in the lower row. They are arranged in a triangle shape, and multiple pairs of staggered roller shafts are arranged in an obtuse triangle. Before the steel plate is corrected, it also includes cleaning and removing impurities on the steel plate to remove the surface of the steel plate. The rust, oxide skin and oil stains, rust and oxide skin are polished three times with...

Embodiment 2

[0028] A casting process for a reducer housing, the material of the reducer housing is Q235AF steel, the thickness of the Q235AF steel is 10mm, and the casting process includes the following steps:

[0029] (1) Steel plate straightening: put Q235AF steel on a steel plate straightening machine for straightening, including steel plate passing through multiple pairs of rollers arranged in a staggered arrangement, and repeated bending for many times, so that the fiber dimensions of each layer tend to be consistent. The rollers include three Yes, it is set up in two rows, with two teams in the upper row and one pair in the lower row. They are arranged in a triangle shape, and multiple pairs of staggered roller shafts are arranged in an obtuse triangle. Before the steel plate is corrected, it also includes cleaning and removing impurities on the steel plate to remove the surface of the steel plate. The rust, oxide skin and oil stains, rust and oxide skin are polished three times with...

Embodiment 3

[0034] A casting process for a reducer housing, the material of the reducer housing is Q235AF steel, the thickness of the Q235AF steel is 10mm, and the casting process includes the following steps:

[0035] (1) Steel plate straightening: put Q235AF steel on a steel plate straightening machine for straightening, including steel plate passing through multiple pairs of rollers arranged in a staggered arrangement, and repeated bending for many times, so that the fiber dimensions of each layer tend to be consistent. The rollers include three Yes, it is set up in two rows, with two teams in the upper row and one pair in the lower row. They are arranged in a triangle shape, and multiple pairs of staggered roller shafts are arranged in an obtuse triangle. Before the steel plate is corrected, it also includes cleaning and removing impurities on the steel plate to remove the surface of the steel plate. The rust, oxide skin and oil stains, rust and oxide skin are polished three times with...

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Abstract

The invention relates to the technical field of speed reducer shells, in particular to a casting process of a speed reducer shell, the speed reducer shell is made of Q235AF steel, and the casting process comprises the following steps that (1) steel plates are straightened, and specifically, the Q235AF steel is put on a steel plate straightening machine to be straightened; (2) after straightened, the steel plates sequentially pass through a milling machine and an electric drill, tapping, CNC machining, heat treatment, grinding and discharging are conducted, the heat treatment comprises normalizing, quenching and tempering operation, and comprises the steps that when the temperature rises to 860-900 DEG C, thorough burning is conducted for 3-5 minutes, the steel plates are immediately immersed in an oil pool for quenching, a quenching frame is swung for 3 minutes, then the quenching frame is lifted out of the oil surface, and the steel plates are taken out and naturally cooled in air; and (3) the treated steel plates are welded to form the reduction gearbox shell, the casting process of the reduction gearbox shell comprises the steps that the steel plates are straightened, specifically, the Q235AF steel is put on a steel plate straightening machine to be straightened and subjected to steel plate treatment, the process is simple, the treated steel plates are high in strength, impact resistance and shock strength, and the prepared reduction gearbox shell is long in service life.

Description

technical field [0001] The invention relates to the technical field of reducer housings, in particular to a casting process for a reducer housing. Background technique [0002] The reducer housing is the basic component for installing various transmission shafts. When the reducer is working, each shaft transmits torque, and at the same time generates a relatively large reaction force, which acts on the housing. Therefore, the reducer housing is required to have Sufficient rigidity to ensure the accuracy of the relative position of each transmission shaft. If the rigidity of the shell is not enough, it will not only reduce the transmission efficiency of the reducer but also shorten the service life of the gear. The rigidity and service life of the reducer casing cast by the existing casting process of the reducer casing still need to be improved. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art and pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00C21D1/18C21D1/28C21D9/00
CPCB23P15/00C21D1/18C21D1/28C21D9/0081
Inventor 倪永杰
Owner 徐州木林森机械配件有限公司