Charging basket for thermal treatment of synchronizer gear hub

A synchronizer and material technology, which is applied in heat treatment furnaces, heat treatment equipment, lighting and heating equipment, etc., can solve problems such as serious deformation, and achieve uniform carburized layer, reduced deformation, and good effect.

Inactive Publication Date: 2013-11-06
天津天海同步科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

but for figure 1 The workpiece shown, the deformation after carburizing and quenching has been very serious for a long time

Method used

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  • Charging basket for thermal treatment of synchronizer gear hub
  • Charging basket for thermal treatment of synchronizer gear hub
  • Charging basket for thermal treatment of synchronizer gear hub

Examples

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Embodiment Construction

[0021] Such as figure 2 , 3 As shown, the present invention provides a material basket for heat treatment of the synchronizer gear hub 8, which includes a main bottom plate 1 of the material basket and five flat plates 2, and the main bottom plate 1 of the material basket and each flat plate 2 are arranged at intervals from bottom to top, They are connected by four basket columns 4, and four workpiece gasket groups are respectively arranged on the main bottom plate 1 of the basket and each flat disk 2. On the main base plate 1 of the material basket and each flat plate 2, a material basket coaming plate 3 is arranged between every two adjacent material basket columns 4, and forms a rectangle.

[0022] The workpiece gasket set includes a workpiece load-bearing inner washer 5 and a workpiece outer washer 6 sleeved on the outside of the workpiece load-bearing inner washer 5. There is a distance between the workpiece load-bearing inner washer 5 and the workpiece outer washer 6, ...

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PUM

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Abstract

The invention provides a charging basket for thermal treatment of a synchronizer gear hub. The charging basket comprises a charging basket main base plate and a workpiece gasket group arranged on the charging basket main base plate. The workpiece gasket group comprises a workpiece load-bearing inner gasket and a workpiece outer gasket sleeved on the outer side of the workpiece load-bearing inner gasket, wherein a separation distance exists between the workpiece load-bearing inner gasket and the workpiece outer gasket. When the gear hub to be treated is arranged above the workpiece gasket group, the workpiece load-bearing inner gasket is in contact with the gear hub located above the workpiece load-bearing inner gasket, and a gap exists between the workpiece outer gasket and the external spline end face of the gear hub. The charging basket for the thermal treatment of the synchronizer gear hub is used for a thermal treatment process of the synchronizer gear hub, enables the deformation amount of a carburized-quenched workpiece to be effectively reduced under the condition that a whole carburized layer is ensured to be even and a metallographic structure is ensured to be good and accordingly improves the accuracy of finished workpiece products. In addition, the charging basket has good effect after being used for a long period of time.

Description

technical field [0001] The invention belongs to the technical field of metal heat treatment, and relates to a material basket for heat treatment of a synchronizer gear hub. Background technique [0002] At present, the carburizing and quenching treatment of high and low gear tooth seats in heavy-duty truck gearbox synchronizers is basically carried out by box-type carburizing furnaces, and the furnace can be installed in a hanging or flat-mounted manner. but for figure 1 For the workpiece shown, the deformation after carburizing and quenching has been very serious for a long time. It is mainly reflected in that the ellipticity of the workpiece is seriously out of tolerance when hanging, and the flatness of the workpiece is seriously out of tolerance when using flat delivery, especially the external spline of the workpiece will have a very large taper, and the taper exceeds 0.50 in serious cases. For the above situation, the effect is not obvious after adjusting the heat tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/32C21D1/62C23C8/20F27D5/00
Inventor 刘继武吕源江
Owner 天津天海同步科技有限公司
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