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Gearbox for tillage machine

A technology for gearboxes and cultivators, applied in the field of gearboxes, can solve problems affecting the service life and quality of tiller gearboxes, poor stability and poor corrosion resistance of tiller gearboxes, and achieve quality And excellent dimensional stability, enhanced toughness, good corrosion resistance

Inactive Publication Date: 2014-12-10
CHONGQING CITY FULING DISTRICT BAOXIANG MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The tillage machine gearbox includes left and right boxes. The left and right boxes of the tillage machine alloy gearbox manufactured by the existing metallurgical technology mainly adopt the general casting method of aluminum alloy. The tillage machine gearbox manufactured by this method Poor stability, poor corrosion resistance, easy to oxidize, affecting the service life and quality of tiller gearbox box

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0013] A tiller gearbox, including left and right casings, the left and right casings are made by the following process steps:

[0014] 1. Take the AM50A magnesium alloy material and add its weight of 3% Al, 1% Ca, 0.3% Mn, 1% Si, and 4% rare earth.

[0015] 2. Add 1.5% MgCI, 0.1% MgO, 1.5% KCI, 0.35% BaCI to the magnesium alloy material during smelting 2 ; The melting time of magnesium alloy is 20 minutes, and the temperature is 300-350 ℃ to make it melt.

[0016] 3. Increase the wall thickness of the mold by 10% of the external dimension of the mold, and increase the inner diameter of the riser by 12% of the inner diameter of the riser. The electric heater (heating 450°C) installed in the mold wall can heat up the mold quickly. , water cooling device outside the mould, when the mold is ejected, the work is cold and fast, and the vacuum is drawn.

[0017] 4. Heat treatment of the workpiece: adopt the semi-solid die-casting method to die-cast the magnesium alloy workpiece, p...

Embodiment approach 2

[0019] 1. Take the AM50A magnesium alloy material and add its weight of 5% Al, 3% Ca, 0.2% Mn, 1% Si, and 6% rare earth.

[0020] 2. Add 2.5% MgCI, 0.2% MgO, 3% KCI, 0.5% BaCI to the magnesium alloy material during smelting 2 ; The melting time of magnesium alloy is 25 minutes, and the temperature is 300-350 ℃ to make it melt.

[0021] 3. Increase the wall thickness of the mold by 10% of the external dimension of the mold, and increase the inner diameter of the riser by 12% of the inner diameter of the riser. The electric heater (heating 450°C) installed in the mold wall can heat up the mold quickly. , water cooling device outside the mould, when the mold is ejected, the work is cold and fast, and the vacuum is drawn.

[0022] 4. Heat treatment of the workpiece: adopt the semi-solid die-casting method to die-cast the magnesium alloy workpiece, perform solution treatment at 350-850°C, and then perform aging treatment at 120-280°C.

Embodiment approach 3

[0024] 1. Take the AM50A magnesium alloy material and add 10% Al, 2% Ca, 0.3% Mn, 1.5% Si, and 4% rare earth by weight.

[0025] 2. Add 1.2% MgCI, 0.5% MgO, 0.5% KCI, 0.5% BaCI to the magnesium alloy material during smelting 2 ; The melting time of magnesium alloy is 30 minutes, and the temperature is 300-350 ℃ to make it melt.

[0026] 3. Increase the wall thickness of the mold by 10% of the external dimension of the mold, and increase the inner diameter of the riser by 12% of the inner diameter of the riser. The electric heater (heating 450°C) installed in the mold wall can heat up the mold quickly. , water cooling device outside the mould, when the mold is ejected, the work is cold and fast, and the vacuum is drawn.

[0027] 4. Heat treatment of the workpiece: adopt the semi-solid die-casting method to die-cast the magnesium alloy workpiece, perform solution treatment at 350-850°C, and then perform aging treatment at 120-280°C.

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Abstract

The invention relates to a gearbox for a tillage machine. The process of manufacturing a gearbox body comprises the following steps: adding Al, Ca, Mn, Si and RE into a magnesium alloy material, adding MgCl, MgO, KCl and BaCl2 in a melting process, increasing the wall thickness of a die, enlarging the feeder head, mounting a resistive heater and a water-cooling device, and vacuumizing. The product mechanical ultimate tensile strength, the yield strength and the elongation of the gearbox can be improved, the gearbox has relatively strong corrosion resistance and relatively high stability, and the service life of the gearbox body of the tillage machine can be prolonged, and the quality of the gearbox body of the tillage machine can be improved.

Description

technical field [0001] The invention relates to a gearbox, in particular to a tiller gearbox. Background technique [0002] The tillage machine gearbox includes left and right boxes. The left and right boxes of the tillage machine alloy gearbox manufactured by the existing metallurgical technology mainly adopt the general casting method of aluminum alloy. The tillage machine gearbox manufactured by this method The stability is not good, the corrosion resistance is poor, and it is easy to oxidize, which affects the service life and quality of the tiller gearbox box. Contents of the invention [0003] The purpose of the present invention is to provide a tiller gearbox, which has strong corrosion resistance and better stability, so as to improve the service life and quality of the tiller gearbox box. [0004] The tiller gearbox of the present invention includes left and right casings, and the left and right casings are made by the following process steps: [0005] a. Add 2-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/02C22C1/02C22F1/06F16H37/00
Inventor 江军政吴小琴
Owner CHONGQING CITY FULING DISTRICT BAOXIANG MACHINERY CO LTD
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