CN112343977A

CN112343977A - Multi-shaft distribution box for steel mill

Info

Publication number: CN112343977A
Application number: CN202011484728.8A
Authority: CN
Inventors: 殷桂虎
Original assignee: Jiangsu Tailong Decelerator Machinery Co Ltd
Current assignee: Jiangsu Tailong Decelerator Machinery Co Ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-02-09
Anticipated expiration: 2040-12-16
Also published as: CN112343977B

Abstract

The invention relates to the field of speed reducers, and provides a multi-shaft distribution box for a steel mill. The seven output shafts are divided into three groups to provide outputs with three different reduction ratios, and the output in the same direction of each output shaft is realized through the meshing transmission of a plurality of intermediate shafts; the technical scheme has compact structure and stable transmission, and can meet the requirement of steel plate rolling.

Description

Multi-shaft distribution box for steel mill

Technical Field

The invention relates to the field of speed reducers, in particular to a multi-shaft distribution box for a steel mill.

Background

In the steel rolling process of a steel rolling mill, a plurality of press rolls are used for sequentially thinning the high-temperature thick steel plate until the thickness reaches a proper value. The plurality of press rolls need to keep rotating in the same direction in the rolling process, and the pressure of the press rolls is gradually reduced along with the thinning of the thickness of the steel plate in the rolling process. There is a need for a gearbox that provides multi-axis unidirectional output with a gradually decreasing output torque.

Disclosure of Invention

The invention aims to provide a multi-shaft distribution box for a steel mill, which meets the requirement of rolling steel plates in the steel mill.

The technical scheme adopted by the invention is as follows:

the utility model provides a multi-axial type distributor box for steel mill, includes box, input shaft, multistage jackshaft and multistage output shaft, the box includes box, well box and lower box, it has the input shaft by the bearing frame support in the box to go up, installs input gear on the input shaft, go up and install three jackshafts by the bearing support between box and the well box, install reversing gear on the jackshaft respectively, six output shafts are installed by the bearing support between well box and the lower box, install output gear on each output shaft respectively, install the intermediate gear with input gear meshing on second, the fourth output shaft respectively, second, fourth output shaft distribute in the both sides of input shaft, install the same output gear on first, second, the third output shaft, reversing gear on the first jackshaft meshes first, the output gear on the second output shaft simultaneously, the reversing gear on the second intermediate shaft is simultaneously meshed with the output gears on the second output shaft and the third output shaft; the same output gears are arranged on the fourth output shaft and the fifth output shaft, and the reversing gear on the third intermediate shaft is simultaneously meshed with the output gears on the fourth output shaft and the fifth output shaft; a fourth intermediate shaft is arranged in the lower box body, a seventh output shaft is arranged in the upper box body, identical and meshed output gears are arranged on the sixth output shaft and the seventh output shaft, the output gear of the fifth output shaft is meshed with an intermediate gear on the fourth intermediate shaft, and a transmission gear on the fourth intermediate shaft is meshed with an output gear of the sixth output shaft.

Further, the seventh output shaft is located directly above the sixth output shaft.

Further, the reduction ratios of the first, second and third intermediate shafts and the corresponding output shafts are different.

Still further, the reduction ratios between the first, second and third intermediate shafts and the corresponding output shafts are gradually reduced.

After the technical scheme is adopted, the invention has the beneficial effects that: the seven output shafts in the technical scheme are divided into three groups, three outputs with different reduction ratios are provided, and the output in the same direction of each output shaft is realized through the meshing transmission of a plurality of intermediate shafts; the technical scheme has compact structure and stable transmission, and can meet the requirement of steel plate rolling.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a view A-A of the present invention;

FIG. 4 is a view B-B of the present invention.

Detailed Description

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings: as shown in the figure, the multi-shaft distribution box for the steel mill comprises a box body, an input shaft 1, four intermediate shafts and seven output shafts. The box body is divided into an upper box body 2, a middle box body 3 and a lower box body 4, an input shaft 1 is supported in the upper box body 2 through a bearing seat, an input gear 5 is installed on the input shaft 1, a first, a second and a third intermediate shaft 6,7 and 8 are installed between the upper box body 2 and the middle box body 3 through bearings, reversing gears 9 are installed on the intermediate shafts respectively, six output shafts are installed between the middle box body 3 and the lower box body 4 through bearings, output gears 10 are installed on the output shafts respectively, intermediate gears 18 meshed with the input gear 5 are installed on the output shafts of the second, the fourth and the 14, the same output gears 10 are installed on the

output shafts

11,12 and 13, the reversing gear on the first intermediate shaft 6 is meshed with the output gears on the first and the

second output shafts

11 and 12 simultaneously, and the reversing gear on the second intermediate shaft 7 is meshed with the output gear on the second output shaft 11 and the second output shaft 12 simultaneously, The output gears on the

third output shafts

12,13 enable the first, second and

third output shafts

11,12,13 to output in the same direction and in the same ratio; the same output gears are arranged on the fourth output shaft 14 and the fifth output shaft 15, and the reversing gear on the third intermediate shaft 8 is simultaneously meshed with the output gears on the fourth output shaft 14 and the fifth output shaft 15, so that the fourth output shaft 14 and the fifth output shaft 15 output in the same direction and in the same ratio; a fourth intermediate shaft 19 is installed in the lower box body 4, a seventh output shaft 17 is also installed in the upper box body 2, identical and meshed output gears are installed on the sixth output shaft 16 and the seventh output shaft 17, an output gear of the fifth output shaft 15 is meshed with an intermediate gear 20 on the fourth intermediate shaft 19, a transmission gear 21 on the fourth intermediate shaft 19 is meshed with an output gear of the sixth output shaft 16, the sixth output shaft 16 and the seventh output shaft 17 output in an equal ratio and in a reverse direction, and the seventh output shaft 17 is located right above the sixth output shaft 16.

The reversing gears 9 of the three intermediate shafts 6,7,8 and the output gears 10 of the first to fifth output shafts are all the same gear, the speed reduction ratios between the intermediate gears 18 of the second and

fourth output shafts

12,14 and the input gear 5 are different, the speed reduction ratios output by the first to

third output shafts

11,12,13 are the largest, the fourth and

fifth output shafts

14,15 are the second, and the sixth and

seventh output shafts

16,17 are the last. The input shaft 1 is positioned at the rear side of the box body and extends out and is connected with the input of the input motor, the shaft end of each output shaft extends out from the front side surface of the box body, and the shaft ends are connected with the output of each compression roller of the rolling mill through universal couplings.

Claims

1. The utility model provides a multi-axial type distributor box for steel mill, includes box, input shaft, multistage jackshaft and multistage output shaft, a serial communication port, the box includes box, well box and lower box, it has the input shaft by the bearing frame support in the box to go up, installs input gear on the input shaft, go up and install three jackshafts by the bearing support between box and the well box, install reversing gear on the jackshaft respectively, six output shafts are installed by the bearing support between well box and the lower box respectively, install output gear on each output shaft respectively, install the intermediate gear with input gear meshing on second, the fourth output shaft respectively, second, fourth output shaft distribute in the both sides of input shaft, install same output gear on first, second, the third output shaft, reversing gear on the first jackshaft meshes first intermediate shaft simultaneously, The reversing gear on the second intermediate shaft is simultaneously meshed with the output gears on the second output shaft and the third output shaft; the same output gears are arranged on the fourth output shaft and the fifth output shaft, and the reversing gear on the third intermediate shaft is simultaneously meshed with the output gears on the fourth output shaft and the fifth output shaft; a fourth intermediate shaft is arranged in the lower box body, a seventh output shaft is arranged in the upper box body, identical and meshed output gears are arranged on the sixth output shaft and the seventh output shaft, the output gear of the fifth output shaft is meshed with an intermediate gear on the fourth intermediate shaft, and a transmission gear on the fourth intermediate shaft is meshed with an output gear of the sixth output shaft.

2. A multi-shaft type distribution box for a steel mill according to claim 1, wherein said seventh output shaft is located directly above the sixth output shaft.

3. The multi-shaft type distribution box for steel mills according to claim 1, wherein the reduction ratios between the first, second and third intermediate shafts and the corresponding output shafts are different.

4. The multi-shaft type distribution box for steel mills according to claim 1, wherein the reduction ratios between the first, second and third intermediate shafts and the corresponding output shafts are gradually decreased.