CN204985532U - Changeable speed reducer of drive ratio - Google Patents
Changeable speed reducer of drive ratio Download PDFInfo
- Publication number
- CN204985532U CN204985532U CN201520556755.XU CN201520556755U CN204985532U CN 204985532 U CN204985532 U CN 204985532U CN 201520556755 U CN201520556755 U CN 201520556755U CN 204985532 U CN204985532 U CN 204985532U
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- China
- Prior art keywords
- gear
- output shaft
- fixed
- bearing
- speed reducer
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Abstract
The utility model belongs to the technical field of the speed reducer technique and specifically relates to a axial distance, output shaft fix in the bearing, and the bearing is installed in the bearing frame, and fixed cover is fixed that changeable speed reducer of drive ratio is fixed with first gear and second gear on the input shaft, be fixed with third gear and fourth gear on the output shaft, and first gear and third gear phase -match, second gear and fourth gear phase -match, the axial distance of first gear and first gear are greater than third gear to fourth gear on the box, fixed sheathe in threaded connection have with screw assorted adjusting nut, first gear and the 3rd gear engagement, the drive ratio of input shaft and output shaft compares for first gear and the third gear number of teeth, second gear and fourth gear engagement, the drive ratio of input shaft and output shaft compares for second gear and the fourth gear number of teeth, and rotatory adjusting nut realizes the change of drive ratio between input shaft and the output shaft.
Description
Technical field
The utility model relates to speed reducer technical field, especially a kind of speed reducer of transmission ratio-variable.
Background technique
Speed reducer plays coupling rotating speed and transmitting torque between prime mover and working machine, speed reducer is generally used for the transmission device of low rotation speed large torque, motor, internal-combustion engine or other power run up reach the object of deceleration by the gearwheel on the few gears meshing output shaft of the number of teeth on the input shaft of speed reducer, the ratio of the number of teeth of large small gear is exactly velocity ratio, the velocity ratio of existing speed reducer is generally fixing immutable, that many output shafts are set to provide different reduction speed ratio under normal circumstances, the speed reducer of many output shafts can cause speed reducer bulky, cost is high.
Model utility content
The technical problems to be solved in the utility model is: in order to overcome the immutable deficiency of its velocity ratio of existing speed reducer, now provide a kind of speed reducer of transmission ratio-variable.
The utility model solves the technological scheme that its technical problem adopts: a kind of speed reducer of transmission ratio-variable, comprise casing, input shaft, output shaft and bearing support, described output shaft and input shaft are plugged on described casing, described input shaft is fixed with the first gear and the second gear, described output shaft is fixed with the 3rd gear and the 4th gear, described first gear and the 3rd gear match, described second gear and the 4th gear match, the axial distance of described first gear and the second gear is greater than the axial distance of the 3rd gear to the 4th gear, the bearing matched with it is provided with in described bearing support, described bearing and described output shaft match, described bearing seat is outside described casing, described output shaft is fixed in described bearing, described bearing is arranged in described bearing support, fixed cover is provided with between described bearing support and casing, described fixed cover is fixed on described casing, the outer surface of described fixed cover is provided with screw thread, described fixed cover is threaded the adjusting nut matched with described screw thread, described adjusting nut is provided with annular protrusion near one end of bearing support, described bearing support is provided with the annular groove matched with described annular protrusion, described annular protrusion rotates and is arranged in described annular groove, first gear and the 3rd gears meshing time initial, now input shaft and the velocity ratio of output shaft are the first gear and the ratio of the 3rd gear number of teeth, when needs change velocity ratio, rotating adjusting nut, moving shaft holder, output shaft is driven to move until the second gear and the 4th gears meshing by bearing support, now input shaft and the velocity ratio of output shaft are the second gear and the ratio of the 4th gear number of teeth.
For the ease of rotating adjusting nut, the outside of described adjusting nut is fixed with handle.
Further, the both sides described output shaft being positioned at described bearing are provided with sleeve, and described sleeve is fixed by screws on output shaft, are limited on output shaft by bearing by two sleeves.
In order to enable bearing drive output shaft to move axially, preferably, described bearing is tapered roller bearing, and tapered roller bearing can bear axis and radial load simultaneously.
The beneficial effects of the utility model are: the speed reducer of transmission ratio-variable of the present utility model, first gear and the 3rd gears meshing time initial, now input shaft and the velocity ratio of output shaft are the first gear and the ratio of the 3rd gear number of teeth, when needs change velocity ratio, rotating adjusting nut, moving shaft holder, output shaft is driven to move until the second gear and the 4th gears meshing by bearing support, now input shaft and the velocity ratio of output shaft are the second gear and the ratio of the 4th gear number of teeth, realize the change of velocity ratio between input shaft and output shaft.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the schematic diagram of the speed reducer of transmission ratio-variable in the utility model;
Fig. 2 is the close-up schematic view of A in Fig. 1.
In figure: 1, casing, 2, input shaft, 3, output shaft, 4, bearing support, 5, adjusting nut, the 6, first gear, the 7, second gear, the 8, the 3rd gear, the 9, the 4th gear, 10, bearing, 11, fixed cover, 12, annular protrusion, 13, handle, 14, sleeve.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of speed reducer of transmission ratio-variable, comprise casing 1, input shaft 2, output shaft 3 and bearing support 4, described output shaft 3 and input shaft 2 are plugged on described casing 1, described input shaft 2 is fixed with the first gear 6 and the second gear 7, described output shaft 3 is fixed with the 3rd gear 8 and the 4th gear 9, described first gear 6 and the 3rd gear 8 match, described second gear 7 and the 4th gear 9 match, the axial distance of described first gear 6 and the second gear 7 is greater than the axial distance of the 3rd gear 8 to the four gear 9, the bearing 10 matched with it is provided with in described bearing support 4, described bearing 10 matches with described output shaft 3, described bearing support 4 is positioned at outside described casing 1, described output shaft 3 is fixed in described bearing 10, described bearing 10 is arranged in described bearing support 4, fixed cover 11 is provided with between described bearing support 4 and casing 1, described fixed cover 11 is fixed on described casing 1, the outer surface of described fixed cover 11 is provided with screw thread, described fixed cover 11 is threaded the adjusting nut 5 matched with described screw thread, described adjusting nut 5 is near one end annular protrusion 12 of bearing support 4, described bearing support 4 is provided with the annular groove matched with described annular protrusion 12, described annular protrusion 12 rotates and is arranged in described annular groove, time initial, the first gear 6 and the 3rd gear 8 engage, now input shaft 2 and the velocity ratio of output shaft 3 are the ratio of the first gear 6 and the 3rd gear 8 number of teeth, when needs change velocity ratio, rotating adjusting nut 5, moving shaft holder 4, output shaft 3 is driven to move until the second gear 7 engages with the 4th gear 9 by bearing support 4, now input shaft 2 and the velocity ratio of output shaft 3 are the ratio of the second gear 7 and the 4th gear 9 number of teeth.
The outside of described adjusting nut 5 is fixed with handle 13, is convenient to rotating adjusting nut 5.
The both sides described output shaft 3 being positioned at described bearing 10 are provided with sleeve 14, and described sleeve 14 is fixed by screws on output shaft 3, are limited on output shaft 3 by bearing 10 by two sleeves 14.
Described bearing 10 is tapered roller bearing, and tapered roller bearing can bear axis and radial load simultaneously.
The compared with prior art speed reducer of transmission ratio-variable of the present utility model, time initial, the first gear 6 and the 3rd gear 8 engage, now input shaft 2 and the velocity ratio of output shaft 3 are the ratio of the first gear 6 and the 3rd gear 8 number of teeth, when needs change velocity ratio, rotating adjusting nut 5, moving shaft holder 4, output shaft 3 is driven to move until the second gear 7 engages with the 4th gear 9 by bearing support 4, now input shaft 2 and the velocity ratio of output shaft 3 are the ratio of the second gear 7 and the 4th gear 9 number of teeth, realize the change of velocity ratio between input shaft 2 and output shaft 3.
Above-mentioned is enlightenment according to desirable embodiment of the present utility model, and by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. the speed reducer of a transmission ratio-variable, it is characterized in that: comprise casing (1), input shaft (2), output shaft (3) and bearing support (4), described output shaft (3) and input shaft (2) are plugged on described casing (1), described input shaft (2) is fixed with the first gear (6) and the second gear (7), described output shaft (3) is fixed with the 3rd gear (8) and the 4th gear (9), described first gear (6) and the 3rd gear (8) match, described second gear (7) and the 4th gear (9) match, described first gear (6) is greater than the axial distance of the 3rd gear (8) to the 4th gear (9) with the axial distance of the second gear (7), the bearing (10) matched with it is provided with in described bearing support (4), described bearing (10) and described output shaft (3) match, described bearing support (4) is positioned at described casing (1) outward, described output shaft (3) is fixed in described bearing (10), described bearing (10) is arranged in described bearing support (4), fixed cover (11) is provided with between described bearing support (4) and casing (1), described fixed cover (11) is fixed on described casing (1), the outer surface of described fixed cover (11) is provided with screw thread, described fixed cover (11) is threaded the adjusting nut (5) matched with described screw thread, described adjusting nut (5) is provided with annular protrusion (12) near one end of bearing support (4), described bearing support (4) is provided with the annular groove matched with described annular protrusion (12), described annular protrusion (12) rotates and is arranged in described annular groove.
2. the speed reducer of transmission ratio-variable according to claim 1, is characterized in that: the outside of described adjusting nut (5) is fixed with handle (13).
3. the speed reducer of transmission ratio-variable according to claim 2, it is characterized in that: the both sides described output shaft (3) being positioned at described bearing (10) are provided with sleeve (14), and described sleeve (14) is fixed by screws on output shaft (3).
4. the speed reducer of transmission ratio-variable according to claim 3, is characterized in that: described bearing (10) is tapered roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556755.XU CN204985532U (en) | 2015-07-28 | 2015-07-28 | Changeable speed reducer of drive ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556755.XU CN204985532U (en) | 2015-07-28 | 2015-07-28 | Changeable speed reducer of drive ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985532U true CN204985532U (en) | 2016-01-20 |
Family
ID=55119905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520556755.XU Expired - Fee Related CN204985532U (en) | 2015-07-28 | 2015-07-28 | Changeable speed reducer of drive ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985532U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438742A (en) * | 2016-10-28 | 2017-02-22 | 南京康尼电子科技有限公司 | Gearbox with manual clutch function |
| CN106763506A (en) * | 2017-03-01 | 2017-05-31 | 江苏国茂减速机股份有限公司 | A kind of gearratio can adjust reductor |
| CN106969094A (en) * | 2017-05-04 | 2017-07-21 | 陈余 | A kind of reductor for improving barrier propterty |
| CN108246192A (en) * | 2018-02-05 | 2018-07-06 | 佛山林稷机电科技有限公司 | A kind of feed puddling equipment |
| CN108246193A (en) * | 2018-02-05 | 2018-07-06 | 佛山林稷机电科技有限公司 | A kind of modified feed puddling equipment |
| CN108421804A (en) * | 2018-02-05 | 2018-08-21 | 广州华爵生物科技有限公司 | A kind of modified harmful chemicals processing unit |
| CN108579483A (en) * | 2018-02-05 | 2018-09-28 | 佛山林稷机电科技有限公司 | A kind of novel fodder puddling equipment |
| CN108666732A (en) * | 2018-05-14 | 2018-10-16 | Oppo广东移动通信有限公司 | Electronic device |
| CN111237392A (en) * | 2020-01-13 | 2020-06-05 | 泉州市方顺机械科技有限公司 | Manual type multifunctional rotary driving device |
-
2015
- 2015-07-28 CN CN201520556755.XU patent/CN204985532U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438742A (en) * | 2016-10-28 | 2017-02-22 | 南京康尼电子科技有限公司 | Gearbox with manual clutch function |
| CN106763506A (en) * | 2017-03-01 | 2017-05-31 | 江苏国茂减速机股份有限公司 | A kind of gearratio can adjust reductor |
| CN106969094A (en) * | 2017-05-04 | 2017-07-21 | 陈余 | A kind of reductor for improving barrier propterty |
| CN108246192A (en) * | 2018-02-05 | 2018-07-06 | 佛山林稷机电科技有限公司 | A kind of feed puddling equipment |
| CN108246193A (en) * | 2018-02-05 | 2018-07-06 | 佛山林稷机电科技有限公司 | A kind of modified feed puddling equipment |
| CN108421804A (en) * | 2018-02-05 | 2018-08-21 | 广州华爵生物科技有限公司 | A kind of modified harmful chemicals processing unit |
| CN108579483A (en) * | 2018-02-05 | 2018-09-28 | 佛山林稷机电科技有限公司 | A kind of novel fodder puddling equipment |
| CN108666732A (en) * | 2018-05-14 | 2018-10-16 | Oppo广东移动通信有限公司 | Electronic device |
| CN111237392A (en) * | 2020-01-13 | 2020-06-05 | 泉州市方顺机械科技有限公司 | Manual type multifunctional rotary driving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180728 |