CN219692216U - Reduction gearbox - Google Patents
Reduction gearbox Download PDFInfo
- Publication number
- CN219692216U CN219692216U CN202223154187.XU CN202223154187U CN219692216U CN 219692216 U CN219692216 U CN 219692216U CN 202223154187 U CN202223154187 U CN 202223154187U CN 219692216 U CN219692216 U CN 219692216U
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- China
- Prior art keywords
- gear
- gear member
- shaft
- reduction gearbox
- output shaft
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- 230000009467 reduction Effects 0.000 title claims abstract description 31
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model provides a reduction gearbox, comprising: the gear comprises a shell, a first gear member, a second gear member, a third gear member, a fourth gear member and a first output shaft, wherein the first gear member, the second gear member, the third gear member, the fourth gear member and the first output shaft are arranged in the shell, one end of the first gear member is connected with one end of the second gear member, the other end of the second gear member is connected with one end of the third gear member, the other end of the third gear member is connected with one end of the fourth gear member, and the other end of the fourth gear member is connected with the first output shaft. The reduction gearbox saves the installation space and is convenient to assemble.
Description
Technical Field
The utility model relates to the technical field of gear rack lifting, in particular to a reduction gearbox.
Background
The lifting system is a key component of the offshore jack-up platform, and the performance of the lifting device directly influences the safety performance and the service life of the jack-up platform. The lifting system is arranged at the joint of the platform main body and the pile leg of the self-elevating platform, and can enable the pile leg and the platform main body to realize up-down relative motion or fix the platform main body at a certain position of the pile leg. The self-elevating platform is widely used in gear rack type elevating system, and has the features of fast elevating speed and simple operation.
The box cover is an important component of a lifting system, and the common box cover comprises a shell and a gear set arranged in the shell, and the lifting transmission effect is realized through the gear set.
However, the assembly process of the box cover is too dense, occupies installation space, and has low assembly efficiency and small application range.
Disclosure of Invention
Aiming at the defects of the related technology, the utility model provides the reduction gearbox which saves the installation space and is convenient to assemble.
In order to solve the above technical problems, an embodiment of the present utility model provides a reduction gearbox, including: the gear comprises a shell, a first gear member, a second gear member, a third gear member, a fourth gear member and a first output shaft, wherein the first gear member, the second gear member, the third gear member, the fourth gear member and the first output shaft are arranged in the shell, one end of the first gear member is connected with one end of the second gear member, the other end of the second gear member is connected with one end of the third gear member, the other end of the third gear member is connected with one end of the fourth gear member, and the other end of the fourth gear member is connected with the first output shaft.
Preferably, the reduction gearbox further comprises a coupling, the end of which is in driving connection with the first gear member.
Preferably, the shell comprises a box body, a box cover matched with the box body, and an input flange and an output flange which penetrate through the box cover.
Preferably, the box body is also provided with a plurality of lifting lugs.
Preferably, the box body is further provided with a plurality of bearing seats, and the plurality of bearing seats are respectively connected with the first gear member, the second gear member, the third gear member and the fourth gear member.
Preferably, the first gear member includes a first gear shaft connected with the coupling and a first gear disposed on the first gear shaft, and the first gear is in driving connection with the second gear member.
Preferably, the second gear member includes a second gear shaft and a second gear disposed on the second gear shaft, the first gear is connected with the second gear shaft through interference fit, and the second gear is in transmission connection with the third gear member.
Preferably, the third gear member comprises a third gear shaft and a third gear arranged on the third gear shaft, the second gear is connected with the third gear shaft through interference fit, and the third gear is in transmission connection with the fourth gear member.
Preferably, the fourth gear member includes a fourth gear shaft and a fourth gear disposed on the fourth gear shaft, the third gear is connected with the fourth gear shaft through interference fit, and the fourth gear is connected with the first output shaft through a spline.
Preferably, a shaft sleeve is arranged on the first output shaft.
Compared with the prior art, the utility model has the advantages that the first gear member, the second gear member, the third gear member and the fourth gear member are respectively arranged in the shell, one end of the first gear member is connected with one end of the second gear member, the other end of the second gear member is connected with one end of the third gear member, the other end of the third gear member is connected with one end of the fourth gear member, and the other end of the fourth gear member is connected with the first output shaft; the reduction gearbox is convenient to install, the output shaft is good in output stress effect, and safety is high.
Drawings
The present utility model will be described in detail with reference to the accompanying drawings. The foregoing and other aspects of the utility model will become more apparent and more readily appreciated from the following detailed description taken in conjunction with the accompanying drawings. In the accompanying drawings:
FIG. 1 is a schematic diagram of the structure of a reduction gearbox according to the present utility model;
FIG. 2 is a schematic view of a partial structure of the present utility model;
fig. 3 is a schematic view of a partial structure of the present utility model.
In the figure, 1, a coupling, 2, a reduction gearbox, 21, a first gear member, 211, a first gear shaft, 212, a first gear, 22, a second gear member, 221, a second gear shaft, 222, a second gear, 23, a third gear member, 231, a third gear shaft, 232, a third gear, 24, a fourth gear member, 241, a fourth gear shaft, 242, a fourth gear, 3, a first output shaft, 4, a housing, 41, a case, 42, a case cover, 5, and a bearing housing.
Detailed Description
The following describes in detail the embodiments of the present utility model with reference to the drawings.
The detailed description/examples set forth herein are specific embodiments of the utility model and are intended to be illustrative and exemplary of the concepts of the utility model and are not to be construed as limiting the scope of the utility model. In addition to the embodiments described herein, those skilled in the art will be able to adopt other obvious solutions based on the disclosure of the claims and specification, including any obvious alterations and modifications to the embodiments described herein, all within the scope of the present utility model.
Example 1
Fig. 1-3 are schematic views of a structure of a reduction gearbox according to the present utility model; FIG. 2 is a schematic view of a partial structure of the present utility model; fig. 3 is a schematic view of a partial structure of the present utility model.
The utility model provides a reduction gearbox, comprising: the gear comprises a shell, a first gear member 21, a second gear member 22, a third gear member 23, a fourth gear member 24 and a first output shaft 3, wherein the first gear member 21 is arranged in the shell, the other end of the first gear member 21 is connected with one end of the second gear member 22, the other end of the second gear member 22 is connected with one end of the third gear member 23, the other end of the third gear member 23 is connected with one end of the fourth gear member 24, and the other end of the fourth gear member 24 is connected with the first output shaft 3.
Wherein, the casing is used for installing and setting a first gear member 21, a second gear member 22, a third gear member 23 and a fourth gear member 24 therein, and lubricating oil can be added in the process of gear transmission connection, so that the casing can play a protection role.
The reduction boxes comprise 2 reduction boxes which are oppositely arranged, and can also comprise 3 reduction boxes, 4 reduction boxes and the like, and the reduction boxes are specifically selected according to actual conditions and are not described one by one.
Specifically, by installing the first gear member 21, the second gear member 22, the third gear member 23, and the fourth gear member 24 in a housing, the other end of the first gear member 21 is connected to one end of the second gear member 22, the other end of the second gear member 22 is connected to one end of the third gear member 23, the other end of the third gear member 23 is connected to one end of the fourth gear member 24, and the other end of the fourth gear member 24 is connected to the first output shaft 3. The reduction gearbox is convenient to install, the output shaft is good in output stress effect, and safety is high.
In this embodiment, the reduction gearbox 2 further comprises a coupling 12, and the end of the coupling 12 is in driving connection with the first gear member 21. The output end is conveniently rotated by starting an external motor, the tail end of the coupler 12 is in transmission connection with the first gear member 21, and the first gear member 21 can be driven to rotate in the process of motor rotation.
In this embodiment, the housing 4 includes a case 41, a case cover 42 that is engaged with the case 41, and an input flange and an output flange that are provided penetrating the case cover 42. The internal gear set is installed on the box 41, the motor is conveniently installed on the input flange, and the output flange is conveniently connected with other components. The inside of the case 41 is provided with reinforcing ribs, so that the case is not easy to deform. The outer sides of the bearing seats of the box body 41 and the box cover 42 are provided with the cover, so that oil leakage is prevented, and the part of the gear shaft extending out of the box body is provided with the cover and then provided with the cover.
Preferably, the coupling 1 is located in the input flange, facilitating connection to the motor.
In this embodiment, a plurality of lifting lugs are further disposed on the case 41. The lifting lugs are arranged in two, so that the whole reduction gearbox is conveniently lifted onto the lifting system after being installed.
In this embodiment, the housing 41 is further provided with a plurality of bearing seats 5, and the plurality of bearing seats 5 are respectively connected to the first gear member 21, the second gear member 22, the third gear member 23, and the fourth gear member 24.
In this embodiment, the first gear member 21 includes a first gear shaft 211 connected to the coupling 12 and a first gear 212 disposed on the first gear shaft 211, and the first gear 212 is in driving connection with the second gear member 22. The first gear is fixed on the first gear shaft 211 by connecting the first gear shaft 211 with the coupling 12, so that the motor 11 drives the coupling 12 to drive the first gear shaft 211 to rotate, the brake is connected through the first gear shaft 211, the first gear shaft 211 is transmitted to the first gear 212, and the first gear 212 is transmitted to the second gear member 22.
In this embodiment, the second gear member 22 includes a second gear shaft 221 and a second gear 222 disposed on the second gear shaft 221, the first gear 212 is connected to the second gear shaft 221 through an interference fit, and the second gear 222 is in driving connection with the third gear member 23. The first gear 212 drives the second gear to rotate, and the second gear 222 drives the third gear member 23 to rotate, so that the effect of multi-stage gear transmission is achieved.
Wherein, the first gear 212 is connected with the second gear shaft 221 through interference fit, so that the first gear 212 and the second gear shaft 221 are tightly matched, and the connection is prevented from falling off or large torque is transmitted.
In this embodiment, the third gear member 23 includes a third gear shaft 231 and a third gear 232 disposed on the third gear shaft 231, the second gear 222 is connected to the third gear shaft 231 through an interference fit, and the third gear 232 is in driving connection with the fourth gear member 24. The second gear 222 drives the third gear 232 to rotate, the third gear 232 drives the fourth gear member 24 to rotate, the fourth gear member 24 drives the first output shaft 3 to rotate, and the first output shaft 3 drives the transmission, so that the use is convenient.
In this embodiment, the fourth gear member 24 includes a fourth gear shaft 241 and a fourth gear 242 disposed on the fourth gear shaft 241, the third gear 232 is connected to the fourth gear shaft 241 by interference fit, and the fourth gear 242 is connected to the first output shaft 3 by spline. The third gear 232 drives the fourth gear 242 to rotate, the fourth gear 242 drives the first output shaft 3 to rotate, and the first output shaft 3 is driven, so that the transmission effect is good and the use is convenient.
Wherein a spline coupling is commonly used for coupling a gear or coupling 12 with an interference fit to a shaft. Typically, spline couplings are non-interference, so the coupled parts need to be axially fixed. The spline is quick and easy to be optimized, has high bearing capacity for receiving spline connection and good centering.
In this embodiment, a shaft sleeve is further disposed on the first output shaft. The axle sleeve is divided into an upper axle sleeve and a lower axle sleeve, the upper axle sleeve is connected with the lower axle sleeve through screws, the bearing sleeve is arranged outside the axle sleeve, the abrasion of the gear shaft can be reduced, the friction is reduced, and the service life of the gear shaft is prolonged.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any such modifications, equivalents, and improvements that fall within the spirit and principles of the present utility model are intended to be covered by the following claims.
Claims (10)
1. A reduction gearbox, comprising: the gear comprises a shell, a first gear member, a second gear member, a third gear member, a fourth gear member and a first output shaft, wherein the first gear member, the second gear member, the third gear member, the fourth gear member and the first output shaft are arranged in the shell, one end of the first gear member is connected with one end of the second gear member, the other end of the second gear member is connected with one end of the third gear member, the other end of the third gear member is connected with one end of the fourth gear member, and the other end of the fourth gear member is connected with the first output shaft.
2. A reduction gearbox according to claim 1, wherein the gearbox is further coupled with a coupling, the end of which is in driving connection with the first gear member.
3. The reduction gearbox of claim 1, wherein the housing comprises a box body, a box cover matched with the box body, and an input flange and an output flange which are penetratingly arranged on the box cover.
4. A reduction gearbox according to claim 3, wherein the box body is further provided with a plurality of lifting lugs.
5. A reduction gearbox according to claim 3, wherein the gearbox is further provided with a plurality of bearing seats respectively connected to the first gear member, the second gear member, the third gear member and the fourth gear member.
6. The reduction gearbox of claim 2, wherein the first gear member includes a first gear shaft connected to the coupling and a first gear disposed on the first gear shaft, the first gear being drivingly connected to the second gear member.
7. The reduction gearbox of claim 6, wherein the second gear member comprises a second gear shaft and a second gear disposed on the second gear shaft, the first gear being connected to the second gear shaft by an interference fit, the second gear being in driving connection with the third gear member.
8. The reduction gearbox of claim 7, wherein the third gear member comprises a third gear shaft and a third gear disposed on the third gear shaft, the second gear being connected to the third gear shaft by an interference fit, the third gear being in driving connection with the fourth gear member.
9. The reduction gearbox of claim 8, wherein the fourth gear member comprises a fourth gear shaft and a fourth gear disposed on the fourth gear shaft, the third gear being connected to the fourth gear shaft by an interference fit, the fourth gear being connected to the first output shaft by a spline.
10. The reduction gearbox of claim 8, wherein the first output shaft is provided with a sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223154187.XU CN219692216U (en) | 2022-11-25 | 2022-11-25 | Reduction gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223154187.XU CN219692216U (en) | 2022-11-25 | 2022-11-25 | Reduction gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692216U true CN219692216U (en) | 2023-09-15 |
Family
ID=87961710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223154187.XU Active CN219692216U (en) | 2022-11-25 | 2022-11-25 | Reduction gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692216U (en) |
-
2022
- 2022-11-25 CN CN202223154187.XU patent/CN219692216U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |