CN213176674U - Composite roller gear box - Google Patents
Composite roller gear box Download PDFInfo
- Publication number
- CN213176674U CN213176674U CN202022123305.5U CN202022123305U CN213176674U CN 213176674 U CN213176674 U CN 213176674U CN 202022123305 U CN202022123305 U CN 202022123305U CN 213176674 U CN213176674 U CN 213176674U
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- gear pair
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Abstract
The utility model relates to a speed reducer field provides compound roll gear box. The output speed reduction transmission part is arranged in the lower box body and the middle box body, the synchronous output transmission device is arranged between the middle box body and the upper box body, two-stage transmission is arranged in a layered mode, all shafts of the transmission device are arranged in parallel, the width of the gear box can be effectively shortened, and the size of the gear box can be reduced. Output after three-level speed reduction transmission can improve the output torque, and the device is suitable for the requirements of rolling of various metals.
Description
Technical Field
The utility model relates to a speed reducer field, concretely relates to compound roll gear box.
Background
In the production process of the metallurgical industry, the raw materials such as steel billets, aluminum billets and the like need to be rolled into profiles of different shapes so as to meet the production requirements of different types. A large moment is usually required during rolling and therefore the performance requirements of the rolling mill are high. In order to make the rolling mill have higher output torque, a front-end reduction compound gear box is often required to be arranged on a power transmission mechanism of the rolling mill, so that the rolling torque of the rolling mill is increased. In order to facilitate installation, debugging and maintenance of the rolling mill, a power input speed reduction stage and a power output distribution stage of the rolling mill are generally cascaded and integrated and are assembled in a compound gear box of a compound press together. In the prior art, the power transmission mechanism of the rolling mill generally arranges the distribution stage of the core vertically and the deceleration stage at the front end horizontally, and the two stages are perpendicular to each other. However, when the center-to-center distance between the two intermeshing gears of the distribution stage is large, or when the transmission ratio of the reduction stage is large (e.g., greater than 3), the size of the power transmission mechanism of the prior art structure will increase drastically, the external size and weight of the compound gear box of the rolling mill will increase considerably accordingly, the internal space will not be utilized reasonably, and a large waste of material and cost will be caused.
Disclosure of Invention
For overcoming the deficiencies in the prior art, the utility model aims to provide a compact structure, compound roll gear box that output torque is big.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
the composite roller gear box comprises a box body, wherein an input transmission device and an output transmission device are installed in the box body, the box body comprises an upper box body, a middle box body and a lower box body which are sequentially connected through screws from top to bottom, the output transmission device is installed between the lower box body and the middle box body, and the output transmission device is installed between the middle box body and the upper box body; the input transmission device comprises an input shaft, a first intermediate shaft, a first transmission gear pair, a second intermediate shaft and a second transmission gear pair, wherein the first transmission gear pair is arranged on the input shaft and the first intermediate shaft, and the second transmission gear pair is arranged on the first intermediate shaft and the second intermediate shaft; the output transmission device comprises a first output shaft, a third transmission gear pair, a constant-speed transmission gear pair and a second output shaft, wherein the third transmission gear pair is arranged on a second intermediate shaft and the first output shaft, the constant-speed transmission gear pair is arranged on the first output shaft and the second output shaft, and the first output shaft and the second output shaft are positioned on the same horizontal plane.
Furthermore, the extending end of the input shaft is positioned at the front side of the box body, and the extending ends of the first output shaft and the second output shaft are positioned at the rear side of the box body.
Furthermore, bearings are arranged at the front ends of the input shaft, the first intermediate shaft and the second intermediate shaft and supported on the front wall of the box body, and the rear ends of the input shaft, the first intermediate shaft and the second intermediate shaft are supported on the inner wall of the middle part in the box body through the bearings.
And furthermore, the extending ends of the input shaft, the first output shaft and the second output shaft are respectively sleeved with a bearing gland.
After taking above technical scheme, the beneficial effects of the utility model are that: the output speed reduction transmission part is arranged in the lower box body and the middle box body, the synchronous output transmission device is arranged between the middle box body and the upper box body, two-stage transmission is arranged in a layered mode, all shafts of the transmission device are arranged in parallel, the width of the gear box can be effectively shortened, and the size of the gear box can be reduced. Output after three-level speed reduction transmission can improve the output torque, and the device is suitable for the requirements of rolling of various metals.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a view A-A;
fig. 3 is a view from B-B.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:
as shown in the figure, the composite roller gear box consists of a box body, an input transmission mechanism and an output transmission mechanism. The box body is composed of an upper box body 1, a middle box body 2 and a lower box body 3. The input transmission mechanism consists of an input shaft 4, a first intermediate shaft 5, a second intermediate shaft 6, a first transmission gear pair 7 and a second transmission gear pair 8, the input shaft 4 and the first intermediate shaft 5 are transmitted by the first transmission gear pair 7, and the first intermediate shaft 5 and the second intermediate shaft 6 are transmitted by the second transmission gear pair 8. The output transmission mechanism consists of a first output shaft 9, a second output shaft 10 and a constant-speed transmission gear pair 11. The first and second output shafts 9,10 are arranged in parallel with each other in the same plane. The first output shaft 9 and the second output shaft 10 realize the output with the same speed and the reverse direction through a constant speed transmission gear pair 11. The output transmission mechanism and the output transmission mechanism are transmitted by a third transmission gear pair 12. And a third transmission gear pair 12 is arranged on the second intermediate shaft 6 and the first output shaft 9 to realize the transmission of torque. In order to improve the rigidity and the torque bearing capacity of each shaft, one end of the input shaft 4, the first intermediate shaft 5, the second intermediate shaft 6 and the second output shaft 10 is supported on the side wall of the box body through bearings, and the other end of the input shaft is supported on the intermediate wall 12 in the box body through bearings, so that the length of the shaft can be effectively shortened, the physical performance of the shaft can be improved, and materials, sealing parts and lubricating parts can be saved. And bearing end covers 13 are arranged on the outer sides of the bearings arranged on the side wall of the box body to form sealing and prevent oil leakage.
Claims (4)
1. The composite roller gear box comprises a box body, wherein an input transmission device and an output transmission device are arranged in the box body, and the composite roller gear box is characterized in that the box body comprises an upper box body, a middle box body and a lower box body which are sequentially connected through screws from top to bottom; the input transmission device comprises an input shaft, a first intermediate shaft, a first transmission gear pair, a second intermediate shaft and a second transmission gear pair, wherein the first transmission gear pair is arranged on the input shaft and the first intermediate shaft, and the second transmission gear pair is arranged on the first intermediate shaft and the second intermediate shaft; the output transmission device comprises a first output shaft, a third transmission gear pair, a constant-speed transmission gear pair and a second output shaft, wherein the third transmission gear pair is arranged on a second intermediate shaft and the first output shaft, the constant-speed transmission gear pair is arranged on the first output shaft and the second output shaft, and the first output shaft and the second output shaft are positioned on the same horizontal plane.
2. The compound roll gearbox as claimed in claim 1, wherein the protruding ends of the input shafts are located at a front side of the housing, and the protruding ends of the first and second output shafts are located at a rear side of the housing.
3. The compound roll gearbox as claimed in claim 1, wherein the front ends of the input shaft, the first intermediate shaft and the second intermediate shaft are supported by bearings on the front wall of the box body, and the rear ends of the input shaft, the first intermediate shaft and the second intermediate shaft are supported by bearings on the inner wall of the middle part in the box body.
4. The compound roll gearbox as claimed in claim 1, wherein the protruding ends of the input shaft, the first output shaft and the second output shaft are respectively sleeved with bearing glands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022123305.5U CN213176674U (en) | 2020-09-24 | 2020-09-24 | Composite roller gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022123305.5U CN213176674U (en) | 2020-09-24 | 2020-09-24 | Composite roller gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176674U true CN213176674U (en) | 2021-05-11 |
Family
ID=75776290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022123305.5U Active CN213176674U (en) | 2020-09-24 | 2020-09-24 | Composite roller gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176674U (en) |
-
2020
- 2020-09-24 CN CN202022123305.5U patent/CN213176674U/en active Active
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