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Machining method for improving form and position precision of large gearbox body device

A gear box and semi-finishing technology, applied in metal processing equipment, manufacturing tools, workshop equipment, etc., can solve the problems of secondary alignment error, difficulty in alignment and machining accuracy, and difficulty in adjustment and assembly.

Inactive Publication Date: 2016-07-13
CITIC HEAVY INDUSTRIES CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to solve the problems in the prior art that adjustment and assembly are very difficult, alignment is difficult, there are adjustment deformation and secondary alignment errors, and alignment and processing accuracy are difficult to guarantee, and to provide a method for improving large-scale gear boxes. Machining method of shape and position accuracy of body device

Method used

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  • Machining method for improving form and position precision of large gearbox body device
  • Machining method for improving form and position precision of large gearbox body device
  • Machining method for improving form and position precision of large gearbox body device

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Embodiment Construction

[0059] As shown in the figure, the specific implementation method is as follows:

[0060] The geometric parameters of the present invention are: the present invention (as Figure 8-10 (shown) is different from the previous gearbox box device, which is composed of the lower box 20, the lower middle box 21, the upper middle box 22, and the upper box 23. The shaft holes are distributed in space, and the shaft holes Size 4-Φ880H7 (M1, M2, N1, N2) and 4-Φ1090H7 (K1, K2, L1, L2), the maximum span of shaft holes in the same axis direction is 3550mm, the center distance of shaft holes on the same side is 2486.97~2487.22mm, box The maximum geometric size of the volume division plane: length × width = 7000 × 4150mm.

[0061] The accuracy requirements of the present invention: the shape and position accuracy of the subdivision surface is 4 to 6 grades, and the shape and position accuracy of the shaft hole is as high as 3 to 6 grades. The parallelism tolerance of B is 0.08mm, the roundn...

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Abstract

The invention relates to a machining method for improving the form and position precision of a large gearbox body device. The processing method comprises the following steps: marking out, performing rough machining on the subdivision surface and a semi-axle hole of each separated gearbox body, performing artificial failure, marking out secondarily, carrying out semifinishing on the subdivision surface and the semi-axle hole of each separated gearbox body, performing natural failure, performing finishing on the subdivision surface of each separated gearbox body, assembling a gearbox body device, performing finishing on the axle holes of the gearbox body device, and checking finally. According to the machining method, since semifinishing and finishing of each separated gearbox body and the gearbox device are performed by the same machine tool on the same locating basis, the machining precision is greatly improved.

Description

technical field [0001] The invention belongs to the field of gear box body devices, and in particular relates to a processing method for improving the shape and position accuracy of a large-scale gear box body device. Background technique [0002] Gearbox transmission technology is widely used, and most of the operating conditions are extremely harsh, requiring continuous shock, vibration, and overload to operate, and the service life is required to be more than 15 years. At the same time, with economic development and technological progress, industrial enterprises are moving toward Environmentally beautiful, resource-saving, energy-saving and efficiency-enhancing, large-scale and super-large-scale development, industrial enterprise equipment is also developing towards large-scale, especially the transmission power of transmission gearboxes used in metallurgy, mining, hydropower and other industries has developed from hundreds of kilowatts Up to the current tens of thousands...

Claims

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Application Information

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IPC IPC(8): B23C3/00B23B39/02B25H7/04
CPCB23B39/02B23B2220/24B23C3/00B23C2220/28B25H7/04
Inventor 刘成张萍张雁李卫军魏忠杰马涛黄新华
Owner CITIC HEAVY INDUSTRIES CO LTD
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