CN201827304U - Anti-backlash planetary reducing mechanism - Google Patents
Anti-backlash planetary reducing mechanism Download PDFInfo
- Publication number
- CN201827304U CN201827304U CN2010205617202U CN201020561720U CN201827304U CN 201827304 U CN201827304 U CN 201827304U CN 2010205617202 U CN2010205617202 U CN 2010205617202U CN 201020561720 U CN201020561720 U CN 201020561720U CN 201827304 U CN201827304 U CN 201827304U
- Authority
- CN
- China
- Prior art keywords
- gear
- gears
- reducing mechanism
- planetary
- planet
- 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 - Lifetime
Links
Images
Landscapes
- Retarders (AREA)
Abstract
The utility model discloses an anti-backlash planetary reducing mechanism, which comprises a sun gear, a plurality of planetary gears and an annular gear. Each planetary gear comprise two bevel gears, a disc spring is arranged between the two bevel gears, the sun gear rotates to drive the planetary gears meshing with the same to rotate so that the annular gear meshing with the planetary gears are driven to rotate; or each planetary gear comprises two spur gears, and the two spur gears mesh with the sun gear in staggered manner. The planetary gears in the planetary reducing mechanism are improved, so that the planetary reducing mechanism has an anti-backlash function and higher precision. Further, manufacturing requirements to gears can be reduced relatively, the gears can be assembled easily relatively, and gear polishing is omitted during assembly.
Description
Technical field
The utility model relates to a kind of reducing gear, particularly a kind of crack planetary gear speed reducing mechanism that disappears.
Background technique
At present, the working principle of planetary gear reducing mechanism is that planet wheel rotates between sun gear 2 and ring gear 4, sun gear 2 rotates and drives planet wheel 3 rotations that are sleeved on the planet axis, planet wheel 3 drives ring gear 4 again and rotates, planet wheel 3 drives output shaft jointly with planet carrier and slows down (as Fig. 1, shown in 2), the volume of this structure is little, driving torque is big, but the manufacturing requirement to gear is very high, and the assembling difficulty is complicated and need reconditioning gear repeatedly, in addition, gear transmission is under normal working condition, because there is error in the molded lines manufacturing of sun gear and planet wheel, in running, just have backlass and exist, so just lost indexing accuracy.
The model utility content
At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of crack planetary gear speed reducing mechanism that disappears, and can also eliminate the backlass that occurs when reaching the deceleration purpose in the gear transmission process.
The technical solution of the utility model is achieved in that a kind of crack planetary gear speed reducing mechanism that disappears, comprise sun gear, a plurality of planet wheel and ring gear, described each planet wheel is made up of two helical gears respectively, transmission is stable, two helical gears are sleeved on the planet axis, and be connected with the dish spring between two helical gears, the dish spring is sleeved on the corresponding planet axis, sun gear is meshed with the helical gear that constitutes planet wheel, helical gear is meshed with ring gear respectively again, sun gear rotates and drives the helical gear rotation that is engaged with, thereby the ring gear of drive and helical gear engagement rotates.
Wherein, described planet wheel is arranged on the planet carrier.
Described planet wheel is more than 3, is evenly distributed on the excircle of described sun gear.
Eliminate the principle that occurs the gap in the gear transmission process: when the actual tooth pitch of sun gear less than theoretical tooth pitch, (the tooth pitch of setting when theoretical tooth pitch refers to design, some errors that occur in the actual course of working cause the actual tooth pitch of sun gear and theoretical tooth pitch there are differences) two helical teeth forming planet wheel can be squeezed and axially close up mutually, and helical gear effective tooth pitch of forming planet wheel reduces; When the actual tooth pitch of sun gear during greater than theoretical tooth pitch, two helical gears forming planet wheel can be under the effect of dish spring force, separate vertically, the helical gear equivalence tooth pitch of forming planet wheel increases, like this in the whole service, the effective tooth pitch of helical gear of forming planet wheel changes, and makes the dynamic self-adapting variation with the sun gear pitch error, thereby has reached the function in the crack that disappears.
Another kind of implementation in the utility model: a kind of crack planetary gear speed reducing mechanism that disappears, comprise sun gear, a plurality of planet wheel and ring gear, described each planet wheel is made up of two spur gears respectively, two spur gears are sleeved on the planet axis, and two spur gear dislocation are fixing, and mesh with described sun gear dislocation.
The number of teeth of described two spur gears is identical.
Described two spur gears misplace fastening by bolt, and stamp pin.
The beneficial effects of the utility model are: in the utility model by the planet wheel in the planetary gear speed reducing mechanism is improved, make whole reducing mechanism possess the crack of disappearing function, and can reach very high precision, manufacturing requirement to gear can reduce relatively in addition, assembling also becomes simple relatively, no longer needs the reconditioning gear in the assembly process.
Description of drawings
Fig. 1 is the structural representation of planetary gear speed reducing mechanism in the prior art;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is the structure enlarged view of planet wheel in the utility model;
Fig. 5 is the another kind of structure enlarged view of planet wheel in the utility model;
Among the figure: planet carrier before 1,2 sun gears, 3 planet wheels, 4 ring gears, 5 back planet carriers, 6 preceding glands, 7 rear pressing covers, 8 planet axis, 9 helical gears, 10 dish springs, 11 main shafts.
Embodiment
In conjunction with the accompanying drawings the utility model is described further:
As shown in Figure 3, be a kind of crack planetary gear speed reducing mechanism that disappears, comprise sun gear 2, a plurality of planet wheel 3 and ring gear 4, sun gear 2 is installed on the main shaft 11, before planet carrier 1 and back planet carrier 5 by Bearing Installation on main shaft 11, by Bearing Installation planet axis 8 is arranged between the forward and backward planet carrier, planet wheel 3 is installed on the planet axis 8, planet wheel 3 meshes with sun gear 2 and ring gear 4 respectively, gland 6 and rear pressing cover 7 before the forward and backward planet carrier outside is respectively equipped with, forward and backward gland is installed on the forward and backward planet carrier by fastening piece respectively.
A kind of optimal way of the present utility model: wherein each planet wheel 3 is made up of two helical gears 9, two helical gears 9 are sleeved on the planet axis 8, and be connected with dish spring 11 (as shown in Figure 4) between two helical gears 9, dish spring 11 is sleeved on the corresponding planet axis 8, described planet wheel 3 is 4, be evenly distributed on the excircle of sun gear 2, can make transmission stable like this.
The crack principle disappears in the transmission process: when the actual tooth pitch of sun gear 2 less than theoretical tooth pitch, the tooth pitch of setting when theoretical tooth pitch refers to design, because some errors that occur in the course of working cause the actual tooth pitch of sun gear 2 and theoretical tooth pitch there are differences, two helical gears 9 that can cause forming planet wheel 3 like this can be squeezed and axially close up mutually, dish spring 10 also can be squeezed and compress simultaneously, when the actual tooth pitch of sun gear 2 during greater than theoretical tooth pitch, two helical gears 9 of forming planet wheel 3 can be under the elastic force effect of dish spring 10, separate vertically, like this in the whole service process, effective tooth pitch of helical gear 9 changes, make the dynamic self-adapting variation with sun gear 2 pitch errors, thereby reached the function in the crack that disappears.
Another kind of optimal way of the present utility model: a kind of crack planetary gear speed reducing mechanism that disappears, comprise sun gear 2, a plurality of planet wheels 3 and ring gear 4, sun gear 2 is installed on the main shaft 11, before planet carrier and the back planet carrier by Bearing Installation on main shaft 11, before, by Bearing Installation planet axis 8 is arranged between the back planet carrier, planet wheel 3 is installed on the planet axis 8, planet wheel 3 meshes with sun gear 2 and ring gear 4 respectively, before, before the back planet carrier outside is respectively equipped with, rear pressing cover, before, rear pressing cover is installed on the planet carrier of front and back by fastening piece respectively, wherein said each planet wheel 3 is made up of two identical spur gears of the number of teeth respectively, and two spur gears are sleeved on the planet axis, and two spur gear dislocation are fixing, and with the 2 dislocation engagements of described sun gear (as Fig. 3, shown in 5), described two spur gears misplace fastening by bolt, and pin or the two spur gears mode by welding of stamping misplaces fastening.
The dislocation of two spur gears is meant tooth mutual dislocation half tooth to the tooth of the tooth of a slice spur gear wherein with respect to another sheet spur gear, like this with sun gear 2 engagement driving processes in no matter the tooth pitch of sun gear 2 how to change two spur gears can both engagement good with it, prevent the appearance in gap, thereby got to the purpose in the crack that disappears.
By above-mentioned dual mode, make whole reducing mechanism possess the crack of disappearing function, and can reach very high precision, the manufacturing requirement to gear can reduce relatively in addition, and assembling also becomes simple relatively.
The above embodiment is the preferred embodiment that proves absolutely that the utility model is lifted, and protection domain of the present utility model is not limited thereto.Being equal to that those skilled in the art are done on the utility model basis substitutes or conversion, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (8)
1. crack planetary gear speed reducing mechanism that disappears, it is characterized in that: comprise sun gear, a plurality of planet wheel and ring gear, described each planet wheel is made up of two helical gears respectively, two helical gears are sleeved on the planet axis, and be connected with the dish spring between two helical gears, the dish spring is sleeved on the corresponding planet axis, and sun gear is meshed with the helical gear that constitutes planet wheel, and helical gear is meshed with ring gear respectively again.
2. according to the crack planetary gear speed reducing mechanism that disappears shown in the claim 1, it is characterized in that: described planet wheel is arranged on the planet carrier.
3. according to the crack planetary gear speed reducing mechanism that disappears shown in claim 1 or 2, it is characterized in that: described planet wheel is more than 3, is evenly distributed on the excircle of described sun gear.
4. crack planetary gear speed reducing mechanism that disappears, it is characterized in that: comprise sun gear, a plurality of planet wheel and ring gear, described each planet wheel is made up of two spur gears respectively, and two spur gears are sleeved on the planet axis, and two spur gear dislocation are fixing, and mesh with described sun gear dislocation.
5. the crack planetary gear speed reducing mechanism that disappears according to claim 4, it is characterized in that: described planet wheel is arranged on the planet carrier.
6. according to claim 4 or the 5 described crack planetary gear speed reducing mechanisms that disappear, it is characterized in that: the number of teeth of described two spur gears is identical.
7. according to claim 4 or the 5 described crack planetary gear speed reducing mechanisms that disappear, it is characterized in that: described two spur gears misplace fastening by bolt, and stamp pin.
8. the crack planetary gear speed reducing mechanism that disappears according to claim 6 is characterized in that: described two spur gears misplace fastening by bolt, and stamp pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205617202U CN201827304U (en) | 2010-10-15 | 2010-10-15 | Anti-backlash planetary reducing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205617202U CN201827304U (en) | 2010-10-15 | 2010-10-15 | Anti-backlash planetary reducing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827304U true CN201827304U (en) | 2011-05-11 |
Family
ID=43965843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205617202U Expired - Lifetime CN201827304U (en) | 2010-10-15 | 2010-10-15 | Anti-backlash planetary reducing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827304U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975248A (en) * | 2010-10-15 | 2011-02-16 | 北京伊贝格机械有限公司 | Backlash planetary retarding mechanism |
| CN104343895A (en) * | 2014-09-29 | 2015-02-11 | 合肥波林新材料有限公司 | Self-compensating zero backlash planetary transmission reducer |
-
2010
- 2010-10-15 CN CN2010205617202U patent/CN201827304U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975248A (en) * | 2010-10-15 | 2011-02-16 | 北京伊贝格机械有限公司 | Backlash planetary retarding mechanism |
| CN104343895A (en) * | 2014-09-29 | 2015-02-11 | 合肥波林新材料有限公司 | Self-compensating zero backlash planetary transmission reducer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101975248A (en) | Backlash planetary retarding mechanism | |
| CN102734394B (en) | Harmonic speed reducer with flexible felly | |
| CN204828504U (en) | RV reduction gear for robot of two kinds of output forms | |
| CN201827304U (en) | Anti-backlash planetary reducing mechanism | |
| CN202251737U (en) | Speed reducer in double-planet structure | |
| CN104358839A (en) | Double-axis positioning transmission mechanism | |
| CN207848324U (en) | Compound planetary wheel deceleration device | |
| CN201351714Y (en) | Dead shaft type multi-level planet gear speed reducer | |
| CN204175880U (en) | A kind of twin shaft positioning and driving mechanism | |
| CN102278430A (en) | Planet-gear speed reducer | |
| CN205534054U (en) | Compound gear type circle planetary gear derailleur | |
| CN202280799U (en) | Multi-gear transmission case | |
| CN208767916U (en) | A kind of planet-gear speed reducing motor | |
| CN210949786U (en) | NGWN type reduction gearbox of single-tooth planet wheel | |
| CN210770055U (en) | Low-noise gear assembly stable in operation | |
| CN210637454U (en) | Planetary belt bevel gear assembly structure | |
| CN202301838U (en) | Cycloid reel | |
| CN211574166U (en) | Wheel-side speed reducer gear set of drive axle of 5-ton loader | |
| CN201666338U (en) | Transmission | |
| CN201401486Y (en) | Planetary gear drive mechanism | |
| CN211550469U (en) | External tooth of planetary output transmission device | |
| CN202971812U (en) | Driven three-speed gear | |
| CN101936365A (en) | Multi-output backlash retarding mechanism | |
| CN201818726U (en) | Multi-output clearance-eliminating and speed-reducing mechanism | |
| CN215763077U (en) | Novel planetary gear gearbox of ore machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |