CN202124755U - Bidirectional driving gear speed reducer - Google Patents
Bidirectional driving gear speed reducer Download PDFInfo
- Publication number
- CN202124755U CN202124755U CN2011201606928U CN201120160692U CN202124755U CN 202124755 U CN202124755 U CN 202124755U CN 2011201606928 U CN2011201606928 U CN 2011201606928U CN 201120160692 U CN201120160692 U CN 201120160692U CN 202124755 U CN202124755 U CN 202124755U
- Authority
- CN
- China
- Prior art keywords
- gear
- output shaft
- planet carrier
- cover plate
- housing
- 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 a bidirectional driving gear speed reducer which is applicable to a full-automatic washing machine. The bidirectional driving gear speed reducer comprises a shell, an input gear shaft, a first output shaft and a second output shaft, wherein the input gear shaft and the first output shaft are coaxially arranged; the hollow second output shaft is movably sleeved on the outer side of the first output shaft; the input gear shaft, close to one end of the first output shaft, is connected with a sun gear of a single planet row; a gear ring of the single planet row is connected with the shell; the first output shaft, close to one end of the input gear shaft, is provided with a first centre gear; a planet frame of the single planet row is provided with internal teeth which are engaged with the first centre gear; the second output shaft, close to one end of the input gear shaft, is provided with a second centre gear adjacent to the first centre gear; and the first centre gear drives the second centre gear by a multi-stage gear transmission system. A torque of the bidirectional driving gear speed reducer is transmitted by the planet frame so that the gear ring can be avoided from generating interference. The bidirectional driving gear speed reducer has the advantages of compact structure, convenience in arranging, high integration level and convenience in assembling.
Description
Technical field
The utility model relates to a kind of transmission mechanism of washing machine, especially relates to a kind ofly having two differences and turning to the gear reduction unit with the output shaft of speed.
Background technology
At present, the effect of the reducing gear of pulsator washing machine generally is to drive impeller after the two-way rotation of motor is slowed down to do reciprocal rotation.One type of twisting automatic washing machine is arranged; Adopt the decelerator of bi-directional drive; Its reducing gear is output as two switched in opposite, speed different rotation through the rotation with motor; Thereby drive opposite, the speed different rotation of impeller and interior bucket travel direction respectively, and then play clothing is carried out the effect of washing washing by rubbing with the hands.The speed-reducing clutch of existing washing machine bi-directional drive generally is to adopt planet fixed shaft gear train drive mechanism, gear transmission structure and Oscillating Tooth Gear Reducer structure; Because general gear drive noise when positive and negative twocouese transmission is big; And that the Oscillating Tooth Gear Reducer structure gets manufacturing cost is higher; Therefore, planet fixed shaft gear train drive mechanism is widely used.For example; A kind of disclosed on the Chinese patent document " automatic reduction clutch of washing machine "; Granted publication number is CN2661744Y; It is mainly by power shaft, output shaft, output sleeve, input axle sleeve, braked wheel and be installed in the inner two driven wheel mechanism of braked wheel and form, and power shaft, output sleeve and output shaft link with two driven wheel mechanism respectively, between braked wheel and output sleeve parts arrangement of clutch are housed.Reverse each other through output shaft and output sleeve, two-wayly drive in proportion, swing is tossed about in bed repeatedly, realize the laundry operating mode to rubbing effect with the hands.In the speed-reducing clutch of above-mentioned employing planet fixed shaft gear train drive mechanism; Because outermost gear ring need pass to output shaft with moment of torsion; Therefore very easily interfere each other with other gear generation; Thereby cause the difficulty of structural configuration and assembling, and then make overall structure compact inadequately, and reduce manufacturing cost when being unfavorable for producing in enormous quantities.
Summary of the invention
The purpose of the utility model is not compact in order to solve the existing structure of gear reduction unit that has the bi-directional drive that is used for washing machine now; The assembling difficulty; The problem that manufacturing cost is high provides the gear reduction unit of the bi-directional drive of a kind of compact conformation, easy for installation, low cost of manufacture.
To achieve these goals; The utility model adopts following technical scheme: a kind of gear reduction unit of bi-directional drive; Comprise by housing and be arranged on shell, input tooth axle, first output shaft and second output shaft that the end cap of housing one side opening end constitutes; Said input tooth axle and the coaxial setting of first output shaft, said second output shaft is a hollow shaft, and kink is in first output shaft outside; Input tooth axle is connected with the sun gear of a single planetary row near first output shaft, one end; The gear ring of single planetary row is connected with housing, and first output shaft is provided with first central gear near input tooth axle one end, and the planet carrier of single planetary row is provided with the internal tooth with the engagement of first central gear; Second output shaft is provided with second central gear adjacent with first central gear near input tooth axle one end, and said first central gear drives second central gear through a multi-stage gear driving system.
The transmission system that the utility model adopts a single planetary row gear transmission structure and multi-stage gear drive mechanism to combine; Because the gear ring in the single planetary row is connected with housing; Therefore the rotation of importing the tooth axle is through after the deceleration of sun gear, planetary gear and gear ring; Pass to first central gear by planetary gear again, and through the output of first output shaft; Simultaneously, the rotation of first central gear is done reverse rotation through multi-stage gear driving system deceleration rear drive second central gear, thereby realizes two-way deceleration.Because input tooth axle and first, second output shaft all are coaxial settings; And the rotation of input tooth axle is exported through planet carrier after through the deceleration of single planetary row; Therefore; The transmission of whole power be input tooth axle, first, second output shaft, sun gear and first, second central gear on the central axis and and the sun gear planet gear meshed, and the multi-stage gear driving system of first, second central gear engagement between carry out; Relation is not connected with a joggle between the gear ring of its outmost turns and the gear on the central axis; Thereby can avoid the mutual interference between gear ring and other gear mechanism, both convenient integrally-built compact Layout is convenient to assembling and manufacturing simultaneously.
As preferably; Said multi-stage gear driving system comprise around first central gear and be located in the housing with gear and duplicate gear; Saidly be meshed with first gear of first central gear, duplicate gear respectively with gear, second gear of duplicate gear then meshes with second central gear.The rotation of first central gear is exported from second output shaft through the reverse deceleration back with gear and duplicate gear, realizes that the friction speed of two output shafts rotations is oppositely exported.Owing to is provided with around first central gear with gear and duplicate gear, help the compactness of structure, in the five equilibrium layout of circumferencial direction, can make the stressed even of decelerator through two and two above multi-stage gear driving systems.
As preferably, said multi-stage gear driving system also comprises to be located in the shell and the gear positioning support that is connected with housing, saidly is located in the gear positioning support with gear and duplicate gear, is respectively equipped with central through hole on two side end faces of gear positioning support.Thereby make multi-stage gear driving system be integrated into an independently member, can simplify the assembling of decelerator, help reducing the cost of making in batches.
As preferably; Said gear positioning support comprises the positioning base and location cover plate that is oppositely arranged; Said positioning base surface is provided with the support column of butt location cover plate; Said gear shaft two ends with gear and duplicate gear are separately positioned on positioning base and locate on the cover plate, and corresponding position with gear and duplicate gear is respectively equipped with protruding circular support platform on said positioning base and the location cover plate.The gear positioning support is resolved into positioning base and location cover plate; It can be made through the assembling of technologies such as riveted joint; Circular support platform then helps increasing the intensity of positioning base and location cover plate, and can reduce and friction area with gear and duplicate gear, helps improving the moment of torsion transmission efficiency; Support column can be located at the gap between the adjacent gear, thereby helps the compactness of gear positioning support structure.
As preferably, the medial surface of said housing is provided with axially extended internal spline, and the round lateral surface of said positioning base is provided with the external tooth with the internal spline engagement.Both can guarantee being rigidly connected between gear positioning support and the housing, and can make the gear positioning support realize plug-type installation again simultaneously, help improving efficiency of assembling.
As preferably, the gear ring outer circumference face of said single planetary row is provided with the external tooth with the internal spline engagement of housing.Location structure by means of the gear positioning support positions gear ring, helps simplifying its structure, simultaneously, makes things convenient for the installation of single planetary row.
As a kind of replacement scheme of above-mentioned preferred version, the gear ring of said single planetary row is provided with locating hole or alignment pin near the end face of gear positioning support one side, accordingly, on the positioning base of gear positioning support, is provided with alignment pin or locating hole.By means of the location structure of gear positioning support, can make gear ring and gear positioning support relative positioning easily through alignment pin, and then realize the location between gear ring and the housing, help simplifying the processing and manufacturing of its location structure.
As preferably; Said planet carrier comprises planet carrier pedestal and planet carrier cover plate; Said planet carrier base-plates surface is provided with the support column of butt planet carrier cover plate; The planetary gear shaft two ends of said single planetary row are separately positioned on planet carrier pedestal and the planet carrier cover plate, and corresponding planetary position is respectively equipped with protruding circular support platform on said planet carrier pedestal and the planet carrier cover plate, and the sun gear of said input tooth axle and single planetary row is structure as a whole.Planet carrier is made up of planet carrier pedestal and planet carrier cover plate, can realize the two ends fixed bearing of planetary pinion gear axle, helps improving the stability of planetary gear construction; The intensity that protruding circular support platform helps improving planet carrier is set on planet carrier pedestal and the planet carrier cover plate, and reduces the friction area between planetary gear and the planet carrier; The sun gear of input tooth axle and single planetary row adopts integrative-structure, is convenient to import being linked and packed of tooth axle and single planetary row.
As preferably; The outside end face that is positioned at the end cap of input tooth axle one side is provided with the splicing sleeve of one extension vertically; The inside and outside two ends of said splicing sleeve endoporus are respectively equipped with and import the powder metallurgy axle sleeve that the tooth axle cooperates, and the gap between two powder metallurgy axle sleeves is provided with outside framework oil seal.Through the supporting of two powder metallurgy axle sleeves, help importing stable that the tooth axle rotates, reduce the vibrating noise when rotating.The powder metallurgy axle sleeve itself contains lubricating oil, thereby helps improving the greasy property of input tooth axle.The outside framework oil seal that is arranged on two gaps between the powder metallurgy axle sleeve then can stop lubricant grease to spill outside the housing.
Further preferred as such scheme, the second output shaft endoporus two ends are respectively equipped with the powder metallurgy axle sleeve that cooperates with first output shaft, and are provided with outside framework oil seal in the outboard end of the second output shaft endoporus; The end face that is positioned at first output shaft, one end on the said housing is provided with the step-like bearing block of one extension vertically, is provided with the rolling bearing and the powder metallurgy axle sleeve that are used to support second output shaft, arrangement vertically in the said bearing block.Thereby make first, second output shaft have reliable supporting and lubricated, and can avoid impurity to get in the housing.
Therefore, the utlity model has following beneficial effect: compact conformation, arrangement convenience, integrated level is high, and is convenient for assembly.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1.
Among the figure: 1; Shell 2; Input tooth axle 3; First output shaft 4; Second output shaft 5; Powder metallurgy axle sleeve 6; Outside framework oil seal 7; Single planetary row 8; Support column 9; Circular support platform 10; Internal spline 11; Housing 12; End cap 13; With gear 14; Duplicate gear 15; Gear positioning support 16; Rolling bearing 17; First central gear 18; Second central gear 71; Sun gear 72; Planetary gear 73; Gear ring 74; Planet carrier 111; Bearing block 121; Splicing sleeve 141; First gear 142; Second gear 151; Positioning base 152; Location cover plate 741; Planet carrier pedestal 742; The planet carrier cover plate.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further description.
Among the embodiment as shown in Figure 1; A kind of gear reduction unit of bi-directional drive; Comprise shell 1, input tooth axle 2, first output shaft 3 and second output shaft 4; Its shell axially is spliced to form by housing 11 and the end cap 12 that is arranged on housing one side opening end, input tooth axle and the coaxial setting of first output shaft, the second hollow output shaft then kink in first output shaft outside; The inside and outside two ends of the second output shaft endoporus are provided with the powder metallurgy axle sleeve 5 that cooperates with first output shaft respectively, and in the outboard end of the second output shaft endoporus outside framework oil seal 6 are set.
Input tooth axle is positioned at end cap one side; First, second output shaft is positioned at housing one side; The outboard end of end cap towards outside vertically one extend to constitute splicing sleeve 121, and be provided with respectively at the inside and outside two ends of splicing sleeve endoporus and import the powder metallurgy axle sleeve 5 that the tooth axle cooperates, simultaneously; Gap between two powder metallurgy axle sleeves is provided with outside framework oil seal 6, spills outside the housing to stop lubricant grease.
One end of input tooth axle 2 is positioned at outside the splicing sleeve and is connected with motor, the sun gear 71 that its other end that is positioned at housing is structure as a whole, and sun gear 71 meshes with the planetary gear 72 of single planetary row 7.As shown in Figure 2, the planetary gear 72 of single planetary row is four, and arranges around branches such as sun gears, so that stressed even.The planet carrier 74 of single planetary row comprises the planet carrier pedestal 741 and the planet carrier cover plate 742 that is oppositely arranged near first output shaft, one side; And be positioned at the support column 8 that adjacent planetary gap is provided with four butt planet carrier cover plates at the planet carrier base-plates surface; Thereby make and have a planetary space of installation between planet carrier pedestal and the planet carrier cover plate; Simultaneously; Corresponding planetary position is respectively equipped with protruding circular support platform 9 on planet carrier pedestal and the planet carrier cover plate; Planetary gear shaft two ends are separately fixed at the circular support platform place on planet carrier pedestal and the planet carrier cover plate, and planet carrier pedestal and planet carrier cover plate can be processed independently parts through riveting process.
Further, axially extended internal spline 10 is set on the medial surface of housing, and on the gear ring 73 outer circumference faces of single planetary row, the external tooth that meshes with internal spline is set, position thereby gear ring can be inserted in the housing easily.
In addition, first output shaft is connecting first central gear 17 near input tooth axle one end with spline, and the planet carrier pedestal center of planet carrier is provided with internal tooth, and is meshed with first central gear.Meanwhile; As shown in Figure 3, be provided with three at interval with gear 13 and three duplicate gears 14 around first central gear, thereby constitute multi-stage gear driving system; And second output shaft is near input tooth axle one end setting second central gear 18 adjacent with first central gear; Wherein be meshed with first central gear, and be meshed with first gear 141 of the duplicate gear that wherein a side is adjacent with gear, second gear 142 of duplicate gear then with the engagement of second central gear.
Easy to assemblyly effectively be fixed in the gear positioning support 15 for making, be respectively equipped with central through hole on two side end faces of gear positioning support, so that the passing of first, second output shaft with gear and duplicate gear.The location cover plate 152 that the gear positioning support comprises the positioning base 151 adjacent with the planet carrier pedestal, is oppositely arranged with positioning base; And be positioned at the support column 8 that adjacent gap with gear and duplicate gear is provided with three butts location cover plates uniformly on the positioning base surface, have the space of an installation thereby make between positioning base and the location cover plate with gear and duplicate gear.Corresponding position with gear and duplicate gear is respectively equipped with protruding circular support platform 9 on positioning base and the location cover plate; Gear shaft two ends with gear and duplicate gear are separately positioned on the circular support platform of positioning base and location cover plate; Positioning base can be fixedly connected through riveting process with the location cover plate, thereby processes independently multi-stage gear driving system parts.
Further, the external tooth of the internal spline of setting and housing engagement positions thereby the multi-stage gear driving system parts can be inserted in the housing easily on the lateral surface of positioning base.
Especially; The location of gear ring also can through paste mutually with the positioning base of gear positioning support at gear ring and end face between locating hole and alignment pin (not shown) are set; Thereby gear ring and gear positioning support are fused, and by means of the location of gear positioning support realization with housing.
In addition; The step-like bearing block 111 of one extension vertically is set on the end face that is positioned at first output shaft, one end on the housing; The place is provided with rolling bearing 16 in the bearing block inner side step, and the step place in the outside is provided with powder metallurgy axle sleeve 5, and the endoporus of rolling bearing and powder metallurgy axle sleeve matches with second output shaft; Thereby constitute supporting to second output shaft
The gear reduction unit of the bi-directional drive of the utility model is when work; The rotation of motor is delivered to single planetary row through input tooth axle, and the sun gear of input tooth axle one end drives planetary gear and rotates, and by the rotation after deceleration of planet carrier output; Internal tooth on the planet carrier drives first central gear and rotates; First central gear directly drives on the one hand first output shaft and rotates, to be used to drive the rotation of agitation wheel for washing machine, drive simultaneously and its engagement with the gear backward rotation; Then drive the first gear forward rotation of duplicate gear with gear; And through second gear drive, the second central gear backward rotation, final second output shaft that drives of second central gear is exported a rotation in the opposite direction with first output shaft and rotating speed is lower, to be used to drive the rotation of washing machine inner tub.
Claims (10)
1. the gear reduction unit of a bi-directional drive; Comprise by housing (11) and be arranged on shell (1), input tooth axle (2), first output shaft (3) and second output shaft (4) that the end cap (12) of housing one side opening end constitutes; It is characterized in that; Said input tooth axle and the coaxial setting of first output shaft, said second output shaft is a hollow shaft, and kink is in first output shaft outside; Input tooth axle is connected with the sun gear (71) of a single planetary row (7) near first output shaft, one end; The gear ring of single planetary row (73) is connected with housing, and first output shaft is provided with first central gear (17) near input tooth axle one end, and the planet carrier of single planetary row (74) is provided with the internal tooth with the engagement of first central gear; Second output shaft is provided with second central gear (18) adjacent with first central gear near input tooth axle one end, and said first central gear drives second central gear through a multi-stage gear driving system.
2. the gear reduction unit of a kind of bi-directional drive according to claim 1; It is characterized in that; Said multi-stage gear driving system comprise around first central gear and be located in the housing with gear (13) and duplicate gear (14); Saidly be meshed with first gear (141) of first central gear, duplicate gear respectively with gear, second gear (142) of duplicate gear then meshes with second central gear.
3. the gear reduction unit of a kind of bi-directional drive according to claim 2; It is characterized in that; Said multi-stage gear driving system also comprises to be located in the shell and the gear positioning support (15) that is connected with housing; Saidly be located in the gear positioning support, be respectively equipped with central through hole on two side end faces of gear positioning support with gear and duplicate gear.
4. the gear reduction unit of a kind of bi-directional drive according to claim 3; It is characterized in that; Said gear positioning support comprises positioning base (151) and the location cover plate (152) that is oppositely arranged; Said positioning base surface is provided with the support column (8) of butt location cover plate; Said gear shaft two ends with gear and duplicate gear are separately positioned on positioning base and locate on the cover plate, and corresponding position with gear and duplicate gear is respectively equipped with protruding circular support platform (9) on said positioning base and the location cover plate.
5. the gear reduction unit of a kind of bi-directional drive according to claim 4 is characterized in that, the medial surface of said housing is provided with axially extended internal spline (10), and the round lateral surface of said positioning base is provided with the external tooth with the internal spline engagement.
6. the gear reduction unit of a kind of bi-directional drive according to claim 5 is characterized in that, the gear ring outer circumference face of said single planetary row is provided with the external tooth with the engagement of the internal spline of housing.
7. the gear reduction unit of a kind of bi-directional drive according to claim 5; It is characterized in that; The gear ring of said single planetary row is provided with locating hole or alignment pin near the end face of gear positioning support one side, accordingly, on the positioning base of gear positioning support, is provided with alignment pin or locating hole.
8. according to the gear reduction unit of claim 1 or 2 or 3 or 4 or 5 or 6 or 7 described a kind of bi-directional drive; It is characterized in that; Said planet carrier comprises planet carrier pedestal (741) and planet carrier cover plate (742); Said planet carrier base-plates surface is provided with the support column (8) of butt planet carrier cover plate; The planetary gear shaft two ends of said single planetary row are separately positioned on planet carrier pedestal and the planet carrier cover plate, and corresponding planetary position is respectively equipped with protruding circular support platform (9) on said planet carrier pedestal and the planet carrier cover plate, and the sun gear of said input tooth axle and single planetary row is structure as a whole.
9. according to the gear reduction unit of claim 1 or 2 or 3 or 4 or 5 or 6 or 7 described a kind of bi-directional drive; It is characterized in that; The outside end face that is positioned at the end cap of input tooth axle one side is provided with the splicing sleeve (121) of one extension vertically; The inside and outside two ends of said splicing sleeve endoporus are respectively equipped with and import the powder metallurgy axle sleeve (5) that the tooth axle cooperates, and the gap between two powder metallurgy axle sleeves is provided with outside framework oil seal (6).
10. according to the gear reduction unit of claim 1 or 2 or 3 or 4 or 5 or 6 or 7 described a kind of bi-directional drive; It is characterized in that; The outside end face that is positioned at the end cap of input tooth axle one side is provided with the splicing sleeve of one extension vertically; The inside and outside two ends of said splicing sleeve endoporus are respectively equipped with and import the powder metallurgy axle sleeve that the tooth axle cooperates, and the gap between two powder metallurgy axle sleeves is provided with outside framework oil seal; The second output shaft endoporus two ends are respectively equipped with the powder metallurgy axle sleeve that cooperates with first output shaft, and are provided with outside framework oil seal in the outboard end of the second output shaft endoporus; The end face that is positioned at first output shaft, one end on the said housing is provided with the step-like bearing block (111) of one extension vertically, is provided with the rolling bearing (16) and the powder metallurgy axle sleeve (5) that are used to support second output shaft, arrangement vertically in the said bearing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201606928U CN202124755U (en) | 2011-05-19 | 2011-05-19 | Bidirectional driving gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201606928U CN202124755U (en) | 2011-05-19 | 2011-05-19 | Bidirectional driving gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202124755U true CN202124755U (en) | 2012-01-25 |
Family
ID=45487827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201606928U Expired - Lifetime CN202124755U (en) | 2011-05-19 | 2011-05-19 | Bidirectional driving gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202124755U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535103A (en) * | 2011-12-29 | 2012-07-04 | 海尔集团公司 | Two-way driving gear reducer and washing machine with same |
-
2011
- 2011-05-19 CN CN2011201606928U patent/CN202124755U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535103A (en) * | 2011-12-29 | 2012-07-04 | 海尔集团公司 | Two-way driving gear reducer and washing machine with same |
| CN102535103B (en) * | 2011-12-29 | 2016-11-02 | 青岛海尔洗衣机有限公司 | The gear reduction unit of a kind of bi-directional drive and there is the washing machine of this gear reduction unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107438726B (en) | Transmission component and electric drive portion with such transmission component | |
| CN102535103A (en) | Two-way driving gear reducer and washing machine with same | |
| CN203005086U (en) | Electric car coaxial direct connection type drive axle assembly | |
| CN103029577A (en) | Coaxial direct-connection type drive axle assembly of electric automobile | |
| US8562476B2 (en) | Manual transmission using chain and planetary gear set as final drive | |
| CN109203973A (en) | Serial mixed power driving device | |
| CN201027256Y (en) | Washing machine clutch | |
| CN106838138A (en) | A kind of star gear train decelerator with resilient support planet carrier | |
| CN206206509U (en) | New-type cycloidal movable teeth reducer | |
| CN100458217C (en) | Single inputting and double outputting planetary speed reducer | |
| CN202124755U (en) | Bidirectional driving gear speed reducer | |
| CN209557598U (en) | Planetary speed variator | |
| CN207309971U (en) | A kind of six-shaft industrial robot wrist structure | |
| CN201110353Y (en) | Helical teeth planet time-shelf mechanism | |
| CN205298420U (en) | Syntropy dual output planet gear | |
| CN207875376U (en) | Hybrid gearbox and hybrid power system | |
| CN203384317U (en) | Planet gear speed increaser for exercise bike | |
| CN205769966U (en) | A kind of new bicycle internal speed-changing flower-drum | |
| CN104343903A (en) | Two-gear planetary gear transmission for full electric vehicle | |
| CN107191551A (en) | A kind of planet gear reducing mechanism and drive device | |
| CN104595424A (en) | Planetary wheel side reducer assembly | |
| CN211117384U (en) | Speed reduction clutch | |
| CN211820623U (en) | Integrated gearbox planetary differential device | |
| CN210661231U (en) | Central transmission structure | |
| CN105857507A (en) | Novel bicycle internal transmission hub |
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: 20120125 |