CN202327016U - Reducer - Google Patents
Reducer Download PDFInfo
- Publication number
- CN202327016U CN202327016U CN2011205474415U CN201120547441U CN202327016U CN 202327016 U CN202327016 U CN 202327016U CN 2011205474415 U CN2011205474415 U CN 2011205474415U CN 201120547441 U CN201120547441 U CN 201120547441U CN 202327016 U CN202327016 U CN 202327016U
- Authority
- CN
- China
- Prior art keywords
- worm gear
- rotating shaft
- bearing
- worm
- reducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a reducer, which belongs to the technical field of machinery. The reducer solves the problem that the rotating shaft of the existing reducer can produce axial endplay in working.. The reducer includes an electrical machine and a worm gear box, wherein a worm gear and a worm arranged in the worm gear box are in an engaged connection, an output shaft is connected with one end of the worm, a rotating shaft capable of being connected with a hub is sleeved in the worm gear box, the worm gear is limitedly connected with the rotating shaft through flat key circumference, a front bearing and a rear bearing are sleeved at the front end and the rear end of the rotating shaft respectively, the bearings are fixedly connected on the inner wall of the worm gear box, an axial limiting structure capable of limiting the axial endplay of the rotating shaft is arranged between the rear bearing and the front bearing. The reducer has the advantages of stable and high-efficient working performance, small noise and long service life.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of speed reducer.
Background technique
Present worm reduction gear comprises motor and worm gear case, and worm gear and worm screw are installed in the worm gear case, and worm gear is connected with worm meshing; Motor output shaft is connected with the end of worm screw, is arranged with the rotating shaft that can be connected with wheel hub in the worm gear, is provided with shoe cream room between worm gear and the worm screw; The problem of its existence is: carry out power transmission through flat key between worm gear and the rotating shaft; Its flat key countershaft carries out circumferentially spacing, but rotating shaft still can axial float, causes transmission of power steady inadequately.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of speed reducer that can make that rotating shaft axially can play.
The purpose of the utility model can realize through following technical proposal: a kind of speed reducer; Comprise motor and worm gear case, worm gear and worm screw are installed in the worm gear case, worm gear is connected with worm meshing; Motor output shaft is connected with the end of worm screw; Be arranged with the rotating shaft that can be connected in the worm gear, through the circumferential spacing connection of flat key, be arranged with fore bearing and rear bearing on the front and back ends of rotating shaft respectively between worm gear and the rotating shaft with wheel hub; Its bearing is connected on the worm gear case inwall, it is characterized in that: be provided with the axial limiting structure that can limit the rotating shaft axial float between described rear bearing and the rotating shaft.
In above-mentioned a kind of speed reducer, described axial limiting structure comprises draw-in groove and the step that is opened on the rotating shaft rear end, and jump ring is installed in the draw-in groove, and described jump ring and step are resisted against respectively on the both ends of the surface of rear bearing.
In above-mentioned a kind of speed reducer, described fore bearing and rear bearing are tapered roller bearing.
Compared with prior art, this speed reducer makes between worm gear and the rotating shaft circumferentially spacing through flat key structure, rotates transmission of power to rotating shaft thereby worm gear drives rotating shaft through flat key; Carry out axial limiting through jump ring, draw-in groove, step and rear bearing structure countershaft, guarantee that rotating shaft can axial float, so; In the power transmission process, all carry out spacing owing to the rotating shaft circumferential and axial; It is very steady and efficient that the rotating shaft power transmission is got, and reduces noise, improves the operating life of speed reducer.
Description of drawings
Fig. 1 is the sectional view of the utility model.
Fig. 2 is another sectional view of the utility model.
Among the figure, 1, motor; 2, worm gear case; 3, worm gear; 4, worm screw; 5, rotating shaft; 6, flat key; 7, fore bearing; 8, rear bearing; 9, jump ring; 10, step.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
As illustrated in fig. 1 and 2; This speed reducer comprises motor 1 and worm gear case 2, and worm gear 3 and worm screw 4 are installed in the worm gear case 2, and worm gear 3 is connected with a joggle with worm screw 4; Motor 1 output shaft is connected with the end of worm screw 4; Be arranged with the rotating shaft 5 that can be connected in the worm gear 3, through flat key 6 circumferential spacing connections, be arranged with fore bearing 7 and rear bearing 8 on the front and back ends of rotating shaft 5 respectively between worm gear 3 and the rotating shaft 5 with wheel hub; Its bearing is connected on worm gear case 2 inwalls, is provided with the axial limiting structure that can limit rotating shaft 5 axial floats between rear bearing 8 and the rotating shaft 5.
The axial limiting structure comprises draw-in groove and the step 10 that is opened on rotating shaft 5 rear ends, and jump ring 9 is installed in the draw-in groove, and described jump ring 9 is resisted against respectively on the both ends of the surface of rear bearing 8 with step 10.
Fore bearing 7 in the present embodiment is tapered roller bearing with rear bearing 8.
This speed reducer makes between worm gear 3 and the rotating shaft 5 circumferentially spacing through flat key 6 structures, make between worm gear 3 and the rotating shaft 5 circumferentially non-sliply, and kinetic force transmits in the past; Carry out axial limiting through jump ring 9, draw-in groove, step 10 and rear bearing 8 structure countershafts 5; Guarantee that rotating shaft 5 can axial float; So, in the power transmission process,, rotating shaft 5 power transmission are got very steadily with efficient because rotating shaft 5 circumferential and axial all carry out spacingly; Reduce noise, improve the operating life of speed reducer.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Claims (3)
1. speed reducer; Comprise motor (1) and worm gear case (2), worm gear (3) and worm screw (4) are installed in the worm gear case (2), worm gear (3) and worm screw (4) are connected with a joggle; Motor (1) output shaft is connected with the end of worm screw (4); Be arranged with the rotating shaft (5) that can be connected in the worm gear (3), through the circumferential spacing connection of flat key (6), be arranged with fore bearing (7) and rear bearing (8) on the front and back ends of rotating shaft (5) respectively between worm gear (3) and the rotating shaft (5) with wheel hub; Its bearing is connected on worm gear case (2) inwall, it is characterized in that: be provided with the axial limiting structure that can limit rotating shaft (5) axial float between described rear bearing (8) and the rotating shaft (5).
2. a kind of speed reducer according to claim 1; It is characterized in that; Described axial limiting structure comprises draw-in groove and the step (10) that is opened on rotating shaft (5) rear end, and jump ring (9) is installed in the draw-in groove, and described jump ring (9) and step (10) are resisted against respectively on the both ends of the surface of rear bearing (8).
3. a kind of speed reducer according to claim 1 and 2 is characterized in that, described fore bearing (7) and rear bearing (8) are tapered roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205474415U CN202327016U (en) | 2011-12-09 | 2011-12-09 | Reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205474415U CN202327016U (en) | 2011-12-09 | 2011-12-09 | Reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327016U true CN202327016U (en) | 2012-07-11 |
Family
ID=46438995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205474415U Expired - Fee Related CN202327016U (en) | 2011-12-09 | 2011-12-09 | Reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296703A (en) * | 2018-11-27 | 2019-02-01 | 湖南航天机电设备与特种材料研究所 | A kind of rotary positioning and directing equipment |
-
2011
- 2011-12-09 CN CN2011205474415U patent/CN202327016U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296703A (en) * | 2018-11-27 | 2019-02-01 | 湖南航天机电设备与特种材料研究所 | A kind of rotary positioning and directing equipment |
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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 |
Granted publication date: 20120711 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |