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Casting method of gearbox casting

A technology for gear boxes and castings, which is applied in the direction of casting molding equipment, casting molds, casting mold components, etc., and can solve problems such as oil passage blockage and sand sticking

Active Publication Date: 2021-07-06
慈溪汇丽机电股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned problems existing in the prior art, the aim is to provide a casting method for gear box castings, which can improve the deformation of the gear box castings, and solve the problems of oil passage blockage, sand sticking, etc.

Method used

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  • Casting method of gearbox casting
  • Casting method of gearbox casting
  • Casting method of gearbox casting

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Embodiment Construction

[0026] In order to make it easy to understand the technical means, creative features, goals and effects achieved by the present invention, the following examples are combined with the appended figure 1 to attach Figure 5 The casting method of a gear box casting provided by the present invention is described in detail.

[0027] The serial numbers assigned to the components in this document, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application all include direct and indirect connection (connection) unless otherwise specified. In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or...

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Abstract

The invention discloses a casting method of a gearbox casting, and belongs to the technical field of casting processes. The casting method of the gearbox casting comprises the steps of carrying out reverse deformation design on a die, preparing a special core bar, manufacturing upper and lower die sand molds and a plurality of single sand cores, carrying out pretreatment, assembling in sequence, carrying out flow coating repairing and drying, and finally, carrying out pouring through molten iron. According to the casting method of the gearbox casting, deformation and cracking of the gearbox casting can be improved, and the problems of oil duct blockage, sand burning and the like are solved.

Description

technical field [0001] The invention relates to the technical field of casting technology, in particular to a casting method of gear box castings. Background technique [0002] At present, with the progress of science and technology and the needs of industrial development, gearboxes, especially medium and large gearboxes, are more and more widely used in various mechanical equipment. At the same time, the requirements for gearbox castings are also getting higher and higher. However, for medium and large gear box castings, it is required that there should be no internal defects such as shrinkage cavities, shrinkage porosity, inclusions, pores, cracks, etc. At the same time, it is also required that the gear box inner cavity opening size tolerance be controlled within ±1.1mm, and the castings are extremely difficult during the casting process. It is easy to deform; and it is not allowed to block the oil channel hole and stick sand. It is difficult for ordinary casting methods ...

Claims

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Application Information

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IPC IPC(8): B22C9/22B22C9/02B22C9/10B22D27/04
CPCB22C9/22B22C9/02B22C9/10B22D27/04Y02P10/20
Inventor 孔富源罗骏峰孙新明
Owner 慈溪汇丽机电股份有限公司
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