CN214367621U - Speed reducer with universal shell reduction function - Google Patents
Speed reducer with universal shell reduction function Download PDFInfo
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- CN214367621U CN214367621U CN202120555212.1U CN202120555212U CN214367621U CN 214367621 U CN214367621 U CN 214367621U CN 202120555212 U CN202120555212 U CN 202120555212U CN 214367621 U CN214367621 U CN 214367621U
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Abstract
The utility model relates to a but subtract speed reducer that shell can be general, subtract the shell including the big velocity ratio speed reduction subassembly of adaptation or little velocity ratio speed reduction subassembly, subtract the inside holding cavity that is formed with of shell, the one end of holding cavity is formed with the adaptation hole, big velocity ratio speed reduction subassembly includes big velocity ratio gear, big velocity ratio axle, guide bearing and bearing frame, the bearing frame is used for corresponding the cooperation installation with the adaptation hole, the one end accessible guide bearing of big velocity ratio axle corresponds the cooperation with the bearing frame, big velocity ratio gear is installed in the outside of big velocity ratio axle and is located subtract the shell inside; the small-speed-ratio speed reducing assembly comprises a small-speed-ratio gear and a small-speed-ratio shaft, one end of the small-speed-ratio shaft can be correspondingly matched and installed with the adaptive hole, the small-speed-ratio gear is installed on the outer side of the small-speed-ratio shaft, and the problem that bearing positions of different reducing shell modules and the small-speed-reduction-ratio guide bearing need to be opened in the prior art is solved.
Description
Technical Field
The utility model relates to an automobile transmission equipment technical field especially relates to a but subtract general speed reducer of shell.
Background
At present, the requirements of automobile traction on reliability, light weight and efficiency are higher and higher, wherein an independent component consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell is commonly used as a speed reduction transmission device between a prime mover and a working machine. The speed reducer has the functions of matching rotating speed and transmitting torque between a prime motor and a working machine or an actuating mechanism, wherein the transmission ratio of the speed reducer is also called as a speed ratio.
In the speed reducer in the prior art, two ends of a middle main shaft are generally fixed by guide bearings, and for speed reducers with different speed ratios, the larger the speed ratio is, the smaller the diameter of the middle main shaft is, so that the sizes of the middle main shafts are different, and therefore, the speed reducers with different speed ratios generally adopt different speed reducer shell bodies (shell reducing for short), so that different shell reducing modules are required to be opened, and the manufacturing cost is increased; in addition, for the speed reducer with small reduction ratio, the diameter of the middle main shaft is generally larger, the section of the installation position of the guide bearing sleeved outside the speed reducer is changed too fast, stress concentration is easily caused, and the problem of bearing position failure is caused.
SUMMERY OF THE UTILITY MODEL
In view of this, a reducer with a common reducer casing is provided to solve the problem of failure of bearing positions of guide bearings with different reducer casing modules and small reduction ratios in the prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a speed reducer with a universally applicable speed reducing shell is characterized by comprising a speed reducing shell which can be adapted to a large-speed-ratio speed reducing component or a small-speed-ratio speed reducing component, wherein an accommodating cavity is formed in the speed reducing shell, an adapting hole is formed at one end of the accommodating cavity, the large-speed-ratio speed reducing component comprises a large-speed-ratio gear, a large-speed-ratio shaft, a guide bearing and a bearing seat, the bearing seat is used for being correspondingly matched and installed with the adapting hole, one end of the large-speed-ratio shaft can be correspondingly matched with the bearing seat through the guide bearing, and the large-speed-ratio gear is installed on the outer side of the large-speed-ratio shaft and is located in the speed reducing shell; the small-speed-ratio speed reducing assembly comprises a small-speed-ratio gear and a small-speed-ratio shaft, one end of the small-speed-ratio shaft can be correspondingly installed in a matched mode with the adaptive hole, and the small-speed-ratio gear is installed on the outer side of the small-speed-ratio shaft.
According to the speed reducer, the shell reducing device is adopted, so that the shell reducing device can be adapted to a large speed ratio shaft and a guide bearing and can also be adapted to a small speed ratio shaft, the universal shell reducing is realized, only one shell reducing with one specification is needed for speed reducers with different speed ratios, mold opening parts are reduced, and the production efficiency is improved; secondly, this application has given up the guide bearing in little velocity ratio speed reduction subassembly, because the diameter of little velocity ratio axle is big on the left and right sides, it also can satisfy the rigidity demand of speed reducer under the condition that does not use the guide bearing, has reduced practical risk, has portably changed the spatial arrangement under the different velocity ratios.
On the premise of the basic technical scheme, the application also makes the following improvements:
furthermore, the transmission device also comprises a driving shaft and a driving gear, wherein the driving shaft is rotatably arranged on the reducer shell and is parallel to the large-speed-ratio shaft or the small-speed-ratio shaft, the driving gear is connected to the driving shaft in a driving manner, and the driving gear is in meshing transmission with the large-speed-ratio gear or the small-speed-ratio gear.
Through the drive gear not only can with big velocity ratio gear meshing transmission but also can with little velocity ratio gear meshing transmission, promoted the flexibility of speed reducer installation, when guaranteeing speed reduction system reliability requirement, lightweight demand, promoted commodity competitiveness.
The speed ratio range of the driving gear and the small speed ratio gear piece is 2.69-3.07.
Further, the speed ratio of the driving gear to the large-speed-ratio gear is larger than 4.
Drawings
Fig. 1 is a schematic structural diagram of a speed reducer provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a speed reducer provided in embodiment 2 of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. shell reduction; 2. a high speed ratio reduction assembly; 3. a drive shaft; 4. a drive gear; 5. a low speed ratio reduction assembly; 1a, an accommodating cavity; 1b, an adaptive hole; 21. a high-speed ratio gear; 22. a high speed ratio shaft 22; 23. a guide bearing; 24. a bearing seat 24; 51. a small-ratio gear; 52. a low speed ratio shaft.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.
Example 1
As shown in fig. 1, the present embodiment discloses a speed reducer, which includes a reduction casing 1, a large-speed-ratio speed reduction assembly 2, a driving shaft 3 and a driving gear 4, wherein an accommodating cavity 1a is formed inside the reduction casing 1, an adapting hole 1b is formed at one end of the accommodating cavity 1a, and the large-speed-ratio speed reduction assembly 2 includes a large-speed-ratio gear 21, a large-speed-ratio shaft 22, a guide bearing 23 and a bearing seat 24.
The bearing seat 24 is correspondingly matched and mounted with the matching hole 1b, one end of the high-speed-ratio shaft 22 is correspondingly matched with the bearing seat 24 through the guide bearing 23, namely the guide bearing 23 is sleeved on the outer side of the high-speed-ratio shaft 22, and the guide bearing 23 is embedded in a preset groove of the bearing seat 24, so that the high-speed-ratio shaft 22 can be rotatably connected with the reducer casing 1; the large-speed-ratio gear 21 is mounted on the outer side of the large-speed-ratio shaft 22 and is positioned inside the reducer casing 1.
The driving shaft 3 is rotatably mounted on the reducer casing 1 and is parallel to the high-speed-ratio shaft 22, the driving gear 4 is connected to the driving shaft 3 in a driving mode, and the driving gear 4 and the high-speed-ratio gear 21 are in meshing transmission.
In the embodiment of the present application, the speed ratio of the driving gear 4 to the large-speed ratio gear 21 is greater than 4, and preferably, in the embodiment, the speed ratio of the driving gear 4 to the large-speed ratio gear 21 is 4.1.
When the speed reducer of the embodiment is used, the driving shaft 3 is connected with the prime mover, and is driven by the prime mover to rotate, so that the driving gear 4 is driven to rotate, the driving gear 4 is in meshing transmission with the large-speed-ratio gear 21, and torque is output through the large-speed-ratio shaft 22, so that the speed reduction effect of the speed reducer is realized.
Example 2
As shown in fig. 2, the present embodiment provides a speed reducer comprising a reduction housing 1, a drive shaft 3 and a drive gear 4 of the same specification and structure as those of embodiment 1, wherein the reduction housing 1 of the embodiment is fitted with a small-speed-ratio speed reduction assembly 5.
The small-speed-ratio speed reducing assembly 5 comprises a small-speed-ratio gear 51 and a small-speed-ratio shaft 52, one end of the small-speed-ratio shaft 52 can be correspondingly installed in a matched mode with the adapting hole 1b, and the small-speed-ratio gear 51 is installed on the outer side of the small-speed-ratio shaft 52.
The driving shaft 3 is rotatably mounted on the reducer casing 1 and is parallel to the small-speed-ratio shaft 52, the driving gear 4 is connected to the driving shaft 3 in a driving manner, and the driving gear 4 is in meshing transmission with the small-speed-ratio gear 51.
In some embodiments of the present application, the speed ratio range of the driving gear 4 and the small-speed ratio gear 52 is 2.69 to 3.07, and preferably, in this embodiment, the speed ratio range of the driving gear 4 and the small-speed ratio gear 52 is 2.8.
When the speed reducer of the embodiment is used, the driving shaft 3 is connected with the prime mover, and is driven by the prime mover to rotate, so that the driving gear 4 is driven to rotate, the driving gear 4 is in meshing transmission with the small-speed-ratio gear 51, and torque is output through the small-speed-ratio shaft 52, so that the speed reduction effect of the speed reducer is realized.
According to the two speed reducers, the shell reducing device can be adapted to the large speed ratio shaft and the guide bearing and can also be adapted to the small speed ratio shaft, the shell reducing is universal, only one shell reducing with one specification is needed for speed reducers with different speed ratios, mold opening parts are reduced, and the production efficiency is improved; secondly, this application has given up the guide bearing in little velocity ratio speed reduction subassembly, because the diameter of little velocity ratio axle is big on the left and right sides, it also can satisfy the rigidity demand of speed reducer under the condition that does not use the guide bearing, has reduced practical risk, has portably changed the spatial arrangement under the different velocity ratios.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (4)
1. A speed reducer with a universally applicable speed reducing shell is characterized by comprising a speed reducing shell which can be adapted to a large-speed-ratio speed reducing component or a small-speed-ratio speed reducing component, wherein an accommodating cavity is formed in the speed reducing shell, an adapting hole is formed at one end of the accommodating cavity, the large-speed-ratio speed reducing component comprises a large-speed-ratio gear, a large-speed-ratio shaft, a guide bearing and a bearing seat, the bearing seat is used for being correspondingly matched and installed with the adapting hole, one end of the large-speed-ratio shaft can be correspondingly matched with the bearing seat through the guide bearing, and the large-speed-ratio gear is installed on the outer side of the large-speed-ratio shaft and is located in the speed reducing shell; the small-speed-ratio speed reducing assembly comprises a small-speed-ratio gear and a small-speed-ratio shaft, one end of the small-speed-ratio shaft can be correspondingly installed in a matched mode with the adaptive hole, and the small-speed-ratio gear is installed on the outer side of the small-speed-ratio shaft.
2. The reducer with the casing being reduced for universal use as claimed in claim 1, further comprising a driving shaft and a driving gear, wherein the driving shaft is rotatably mounted on the casing and is arranged in parallel with the high-speed-ratio shaft or the low-speed-ratio shaft, the driving gear is in driving connection with the driving shaft, and the driving gear is in meshing transmission with the high-speed-ratio gear or the low-speed-ratio gear.
3. The speed reducer with the universal shell reduction function as claimed in claim 2, wherein the speed ratio range of the driving gear and the small-speed-ratio gear is 2.69-3.07.
4. A reduced-hull universal reducer according to claim 2, characterised in that the speed ratio of the drive gear to the high-ratio gear is greater than 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120555212.1U CN214367621U (en) | 2021-03-18 | 2021-03-18 | Speed reducer with universal shell reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120555212.1U CN214367621U (en) | 2021-03-18 | 2021-03-18 | Speed reducer with universal shell reduction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214367621U true CN214367621U (en) | 2021-10-08 |
Family
ID=77971990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120555212.1U Active CN214367621U (en) | 2021-03-18 | 2021-03-18 | Speed reducer with universal shell reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214367621U (en) |
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2021
- 2021-03-18 CN CN202120555212.1U patent/CN214367621U/en active Active
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