Novel main speed reducer applied to ring rolling mill

Abstract

The utility model discloses a novel main speed reducer applied to a ring rolling mill, which comprises a first-stage gear pair, a second-stage gear pair, a third-stage gear pair and an output shaft which are arranged in a shell, and the first-stage gear pair, the second-stage gear pair, the third-stage gear pair and the output shaft are all longitudinally arranged in the shell. The device is reasonable in structure, relatively low in cost, convenient to install, use and maintain and reliable in performance.

Description

Technical Field

[0001] The utility model belongs to the field of machinery, and particularly relates to a new type of main speed reducer applied to a ring rolling machine. Background Art

[0002] Ring rolling machines are mainly used for rolling ring-shaped parts. Compared with ordinary forging, the rolling efficiency and precision are significantly improved. Therefore, ring rolling machines are widely used in the ring forging industry. With the development of technology and the progress of science and technology, the demand for ring parts is increasing, such as in wind power generation, aviation, aerospace, etc., which puts higher requirements on existing equipment. Currently, as Figure 1 shown, the structural form of the main speed reducer of ring rolling machines adopted in China is generally a three-stage transmission structure of one-stage bevel gear plus two-stage cylindrical gears. This structure is heavy in weight, high in processing cost, and long in processing cycle. Summary of the Invention

[0003] The purpose of the utility model is to design a new type of main speed reducer applied to a ring rolling machine, which has a simple structure, relatively low cost, is convenient for installation, use and maintenance, and has reliable performance.

[0004] The technical solution of the utility model is: a new type of main speed reducer applied to a ring rolling machine, which includes a first-stage gear pair, a second-stage gear pair, a third-stage gear pair and an output shaft installed in a housing. The first-stage gear pair, the second-stage gear pair, the third-stage gear pair and the output shaft are all longitudinally installed in the housing.

[0005] The advantages of the utility model are:

[0006] 1. The three-stage cylindrical gear pair is adopted to replace the original one-stage bevel gear plus two-stage cylindrical gears, reducing the manufacturing cost and cycle, having a higher precision level, reducing the difficulty of gear processing, and reducing the repeated adjustment during the installation of the bevel gear pair. It is convenient for installation, use and maintenance.

[0007] 2. The input shaft is longitudinally installed upward, which is different from the previous horizontal installation of the input shaft, solving the hidden trouble of oil leakage at the input shaft oil seal.

[0008] 3. The motor is installed on the machine cover by vertical flange connection, which is different from the previous installation of the motor bracket on the reducer base, reducing the length of the reducer base, reducing the area of the pit dug by the manufacturer, and saving the use cost of the manufacturer. Brief Description of the Drawings

[0009] Figure 1 is a schematic structural diagram of a traditional main speed reducer of a ring rolling machine;

[0010] Figure 2 is a schematic structural diagram of a new type of main speed reducer of a ring rolling machine;

[0011] Figure 3Schematic diagram of the input shaft structure of the new main speed reducer for a ring rolling machine

[0012] In the figure: 1 bevel gear pair, 2 first-stage gear pair, 3 second-stage gear pair, 4 third-stage gear pair, 5 output shaft, 6 housing. Specific implementation mode

[0013] The technical solution of the present utility model will be described in detail below with reference to the accompanying drawings.

[0014] As Figure 2 、 Figure 3 shown, a new type of main speed reducer applied to a ring rolling machine includes a first-stage gear pair 2, a second-stage gear pair 3, a third-stage gear pair 4 and an output shaft 5 installed in a housing 6. The first-stage gear pair 2, the second-stage gear pair 3, the third-stage gear pair 4 and the output shaft 5 are all longitudinally installed in the housing 6.

Claims

1. A new type of main reducer used in a ring rolling machine, which includes a primary gear pair, a secondary gear pair, a tertiary gear pair, and an output shaft installed in a housing, and is characterized by: The first-stage gear pair, the second-stage gear pair, the third-stage gear pair and the output shaft are all longitudinally installed in the housing.

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