CN201013867Y - Internal tooth planetary gear speed reducer - Google Patents
Internal tooth planetary gear speed reducer Download PDFInfo
- Publication number
- CN201013867Y CN201013867Y CNU2007200313177U CN200720031317U CN201013867Y CN 201013867 Y CN201013867 Y CN 201013867Y CN U2007200313177 U CNU2007200313177 U CN U2007200313177U CN 200720031317 U CN200720031317 U CN 200720031317U CN 201013867 Y CN201013867 Y CN 201013867Y
- Authority
- CN
- China
- Prior art keywords
- internal tooth
- tooth ring
- input shaft
- ring plates
- speed 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
Links
Images
Landscapes
- Retarders (AREA)
Abstract
A planetary-gear speed reducer with inner gears comprises a box body, an input shaft and an output shaft that are positioned in the box body, and is characterized in that six completely identical eccentric sleeves are sequentially positioned on the input shaft, an internal tooth ring plate is positioned on each eccentric sleeve. A first and a sixth, a second and a fifth, and a third and a fourth internal tooth ring plates among the six internal tooth ring plates respectively share the same phase, and the phase difference among the first, the second and the third internal tooth ring plates is 120 degrees. As the eccentric sleeve, the internal tooth ring plate and the input shaft of the utility model form a double crank mechanism, the first and the sixth, the second and the fifth, and the third and the fourth internal tooth ring plates among the six internal tooth ring plates respectively share the same phase, and the phase difference among the first, the second and the third internal tooth ring plates is 120 degrees, the dynamic balance is realized.
Description
Technical field
The utility model relates to a kind of gear reducer, particularly a kind of inner tooth planet gear retarder.
Background technique
The inner tooth planet gear transmission is a kind of novel type of belt drive, the retarder of making according to this transmission principle, it is big to have velocity ratio, volume is little, and is simple in structure, power dividing, the internal tooth engagement, the characteristics of multiple tooth contact, thereby have advantages of high bearing capacity and overload performance preferably, and have higher transmission efficiency.The domestic three-ring speed reducer that is primarily aimed at has wherein been done a large amount of work.
Three-ring speed reducer is owing to the structural feature of himself, and retarder has only been realized static balancing, can't realize requirement for dynamic balance.Retarder when work,, will influence its usability greatly because of the imbalance of self inertia torque of couple must cause machine generation shock and vibration.Particularly more outstanding under high-speed overload, become the key issue that production department needs to be resolved hurrily.Because the imbalance of inertia couple is the main cause that causes the three-ring speed reducer vibration, fundamentally solve its vibration problem, must further investigate its dynamics, manages to make it to reach requirement for dynamic balance.
Three-ring speed reducer uses three internal gears (internal tooth ring plate) as planetary pinion, with the supporting of two cranks, when three planetary pinions are done planetary motion under crank drives, respectively with output shaft on the external gear engagement, the phase place of contact points is mutually 120 °, finishes the transmission of power task.The velocity ratio of three-ring speed reducer equals the velocity ratio of identical number of teeth little tooth difference speed reducer, thereby velocity ratio is big; Owing to can use a plurality of inner tooth planet gears and external gear to mesh simultaneously, in theory, each contact points is transmitted identical power, thereby bearing capacity is big.
Three-ring speed reducer had both had the advantage that the plane table thermoconductivity meter bearing capacity is big, volume is little, efficient is high, had the big advantage of little tooth difference speed reducer velocity ratio again.But because there are the motion undefined position in internal gear, eccentric bushing with the double crank mechanism that transmission shaft constitutes, also there is significant disadvantages in three-ring speed reducer: the gear mesh force cyclically-varying, have unbalance inertia force, thereby vibration greatly, noise is high; When a plurality of internal gears and external gear engagement, had restricted problem, the internal gear machining error makes eccentric bushing fretting wear occur; For satisfying the special assembling condition, internal gear adds man-hour, and strict phase place requirement is arranged between each internal gear, and therefore, internal gear does not have interchangeability.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides that a kind of vibration is little, noise is low, the eccentric bushing light abrasion, and can realize dynamically balanced inner tooth planet gear retarder.
For achieving the above object, the technical solution adopted in the utility model is: comprise casing and be arranged on casing interior input shaft and output shaft, be characterized in, on input shaft, be disposed with six identical eccentric bushings, be respectively arranged with internal tooth ring plate on each eccentric bushing, in six internal tooth ring plates the first, the 6th; The second, the 5th; Three, the 4th two two phase places are identical, and phase difference is 120 ° between first, second, third internal gear.
Be connected by key between two eccentric bushings in the centre of the present utility model and the input shaft, be connected with nut by expansion set between all the other eccentric bushings and the input shaft, and between expansion set and eccentric bushing, also be provided with the spacer that is used for determining expansion set position in eccentric bushing.
Because eccentric bushing of the present utility model, internal tooth ring plate and input shaft constitute double crank mechanism, in six internal tooth ring plates the first, the 6th; The second, the 5th; Three, the 4th two two phase places are identical, thereby phase difference is 120 ° and has realized dynamic balancing between first, second, third internal gear.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Referring to Fig. 1, the utility model comprises casing 2 and is arranged on input shaft 1 and output shaft 9 in the casing 2, on input shaft 9, be disposed with six identical eccentric bushings 7, be respectively arranged with in 6, six internal tooth ring plates 6 of internal tooth ring plate the first, the 6th on each eccentric bushing 7; The second, the 5th; Three, the 4th two two phase places are identical, and phase difference is 120 ° between first, second, third internal gear 6.Because six internal tooth ring plates 6 are arranged, the number of ring flat-plate is many, the assembling difficulty of retarder.Be to solve the problem of retarder assembling difficulty, in six eccentric bushings 7, middle two with input shaft 1 between connect with key 8 outside, connect with expansion set 4 between all the other eccentric bushings 7 and the input shaft 1.During assembling, two eccentric bushings 7 in the middle of packing into from both sides earlier reinstall second, the 5 two eccentric bushing 7, and by the round nut 3 at input shaft 1 two ends the expansion set 4 between eccentric bushing 7 and the input shaft 1 are locked.First, the 6 two eccentric bushing 7 of packing into then makes expansion set 4 lockings between eccentric bushing 7 and the input shaft 1 with round nut 3.
Claims (2)
1. inner tooth planet gear retarder, comprise casing (2) and be arranged on casing (2) interior input shaft (1) and output shaft (9), it is characterized in that: on input shaft (9), be disposed with six identical eccentric bushings (7), be respectively arranged with internal tooth ring plate (6) on each eccentric bushing (7), in six internal tooth ring plates (6) the first, the 6th; The second, the 5th; Three, the 4th two two phase places are identical, and phase difference is 120 ° between first, second, third internal gear (6).
2. inner tooth planet gear retarder according to claim 1, it is characterized in that: be connected by key (8) between said two eccentric bushings (7) in the middle of being positioned at and the input shaft (1), be connected with nut (3) by expansion set (4) between all the other eccentric bushings (7) and the input shaft (1), and between expansion set (4) and eccentric bushing (7), also be provided with the spacer (5) that is used for determining expansion set (4) position in eccentric bushing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200313177U CN201013867Y (en) | 2007-03-06 | 2007-03-06 | Internal tooth planetary gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200313177U CN201013867Y (en) | 2007-03-06 | 2007-03-06 | Internal tooth planetary gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201013867Y true CN201013867Y (en) | 2008-01-30 |
Family
ID=39025660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200313177U Expired - Fee Related CN201013867Y (en) | 2007-03-06 | 2007-03-06 | Internal tooth planetary gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013867Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485322A (en) * | 2016-01-25 | 2016-04-13 | 扬州大学 | Expansion and eccentric sleeve type planet shaft of RV reducer |
-
2007
- 2007-03-06 CN CNU2007200313177U patent/CN201013867Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485322A (en) * | 2016-01-25 | 2016-04-13 | 扬州大学 | Expansion and eccentric sleeve type planet shaft of RV reducer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201363399Y (en) | Full balanced dual drive three-ring speed reducer | |
| CN104121334B (en) | A kind of coaxial single input bidirectional output large speed ratio cycloidal reducer | |
| CN203130928U (en) | RV double-cycloidal-pin-wheel speed reducer | |
| CN201003571Y (en) | Three gear plate inner mesh few teeth difference planetary gear transmission device | |
| CN103016634A (en) | RV (rotate vector) double-cycloidal pin gear speed reducer | |
| CN204041890U (en) | A kind of planet little tooth difference speed reducer | |
| CN201196247Y (en) | Fixed-shaft eccentric center cycloid wheel speed reducer | |
| CN201177029Y (en) | Planet type few teeth difference decelerator | |
| CN201034147Y (en) | Symmetrical three-ring-two-phase decelerator | |
| CN201475265U (en) | Three-ring speed reducer | |
| CN201013867Y (en) | Internal tooth planetary gear speed reducer | |
| CN203272629U (en) | Composite two-stage planetary reducer | |
| CN102080707A (en) | Two-end output speed reducing transmission device | |
| CN104578565A (en) | Combined harmonic wave speed reduction and motor integrated machine | |
| CN107882928B (en) | Duplex cycloidal reducer | |
| CN109780163B (en) | Reciprocating type cylindrical sine end face oscillating tooth speed reducer | |
| CN104389955B (en) | Single many worm gear end face mesh gears of worm screw | |
| CN100549461C (en) | A kind of internal tricyclic decelerator | |
| CN204425109U (en) | A kind of combination harmonic reducing motor all-in-one | |
| CN204127213U (en) | A kind of built-in Gear Planet Transmission high rigidity gear with small teeth difference transmission device | |
| CN201090682Y (en) | Internal three-cycle speed reducer | |
| CN201013845Y (en) | Full symmetry type three rings two-phase B grade decelerator | |
| CN104154185B (en) | A kind of built-in Gear Planet Transmission high rigidity gear with small teeth difference actuating device | |
| CN202301817U (en) | Outer-swing multiple-crank-shaft less-tooth-difference accelerator/decelerator | |
| LU101226B1 (en) | Ringless planet magnetic gear changing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 |