CN102261432B - Planet gear speed reducing mechanism and motor - Google Patents
Planet gear speed reducing mechanism and motor Download PDFInfo
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- CN102261432B CN102261432B CN201110104972.1A CN201110104972A CN102261432B CN 102261432 B CN102261432 B CN 102261432B CN 201110104972 A CN201110104972 A CN 201110104972A CN 102261432 B CN102261432 B CN 102261432B
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Abstract
The invention relates to the technical field of speed reducing mechanisms, and discloses a planet gear speed reducing mechanism and a motor comprising the same. The planet gear speed reducing mechanism comprises a first sun gear connected with an external input mechanism, and also comprises a duplex planet gear set, a first planet gear frame and an autorotation inner gear, wherein one end of the duplex planet gear set is engaged with the first sun gear, and the autorotation inner gear is engaged with the other end of the duplex planet gear set; and the duplex planet gear set is movably sleeved at one side of the first planet gear frame. Compared with the prior art, the planet gear speed reducing mechanism has the advantages that: two-stage speed reduction can be realized by fit of the duplex planet gear set and the autorotation inner gear, so that the structure of the planet gear speed reducing mechanism is simplified; and for certain over two-stage speed reducing mechanism, the number of parts is greatly reduced, the cost is reduced, and the planet gear speed reducing mechanism has small overall dimension and light weight.
Description
Technical field
The present invention relates to the technical field of reducing gear, especially a kind of planet gear reducing mechanism and the motor that comprises this planet gear reducing mechanism.
Background technique
In modern mechanical device, much all need to use reducing gear, such as tubular motor etc., reducing gear can, in the situation that guaranteeing that moment of torsion is constant, convert the high rotating speed of input shaft to the slow-speed of revolution, and be exported by output shaft.
In prior art, reducing gear is generally planet gear reducing mechanism 1 ", as shown in Fig. 1～2, for third-level planetary wheel reducing gear of the prior art, this third-level planetary wheel reducing gear comprises three groups of planetary wheeling assemblies and two fixed annuluss, the first row star wheel component comprises the first sun gear 102 ", with the first sun gear 102 " the first planetary gear set 103 being meshed " and the first row star wheel frame 104 ", " one end is connected in input shaft to this first sun gear 102, the other end is engaged in the first planetary gear set 103 ", one end that the first planetary gear set 103 " is movably set in the first row star wheel frame 104 ", and be engaged in the first fixed annulus 101 ", can be around these the first fixed annulus 101 " rotations, this the first row star wheel frame 104 " the other end there is the second sun gear, the second planetary wheeling assembly comprises the second planetary gear set 105 " and second planetary wheel carrier 106 " being meshed with the second sun gear, one end of this second planetary gear set 105 " movable second planetary wheel carrier 106 that is set in ", and be engaged in the first fixed annulus 101 ", can be around this first fixed annulus 101 the other end of " rotation, the second planetary wheel carrier 106 " there is the 3rd sun gear, third planet wheel assembly comprises the third planet wheels 107 " and third planet wheel carrier 108 " that are meshed with the 3rd sun gear, one end of these third planet wheels 107 " the movable third planet wheel carrier 108 that is set in ", and be engaged in the second fixed annulus 109 ", can be around these the second fixed annulus 113109 " rotations, third planet wheel carrier 108 " the other end there is output shaft 1111, for output speed and moment of torsion, the first fixed annulus 101 " and second fixed annulus 109 " is fastened togather mutually, form third-level planetary wheel reducing gear 1 " shell.
Above-mentioned third-level planetary wheel reducing gear 1 " adopt the design method of stacked bridging type, it must just can reach rotating speed and the moment of torsion needing through three layers of planetary gear set, and the part of each planetary gear set is many; thus cause this mechanism head; need two fixed annuluss, weight is large, and cost is also high.
Planet gear reducing mechanism applies in tubular motor more, thereby also causes the size of tubular motor larger, the problem that cost is high.
Summary of the invention
The object of the present invention is to provide a kind of planet gear reducing mechanism, be intended to solve existing reducing gear complex structure, number of spare parts is many, cost is high, boundary dimension is large and weight is large problem.
The present invention realizes like this, a kind of planet gear reducing mechanism, comprise first sun gear that can be connected with extraneous input mechanism, also comprise the rotation internal gear that one end is engaged in the duplex planet wheels of described the first sun gear, the first row star wheel frame and meshes with the described duplex planet wheels the other end, described duplex planet wheels are movably set in a side of described the first row star wheel frame.
Further, described duplex planet wheels comprise several intermeshing double-planetary gears, described double-planetary gear comprises the gearwheel that can mesh with described the first sun gear and the small gear that can mesh with described rotation internal gear one end, described gearwheel is movably set in a side of described the first row star wheel frame, and described small gear is placed in a side of described gearwheel.
Further, a side of described the first row star wheel frame is provided with several movable the first sleeves that are sheathed on described gearwheel.
Further, described the first sleeve is uniformly distributed in a side of described the first row star wheel frame.
Further, one end of described rotation internal gear has first internal gear that can mesh with described gearwheel, and the other end has the second sun gear.
Further, also comprise the input bearing that is sheathed on described the first sun gear, described input shaft bearing is between described the first sun gear and described the first row star wheel frame.
Further, described planet gear reducing mechanism also comprises the second planetary gear set, the second planetary wheel carrier and the fixed annulus that can mesh with described the second sun gear, described the second planetary gear set is movably set in a side of described the second planetary wheel carrier, and described duplex internal tooth wheels and described the second planetary gear set are engaged in described fixed annulus.
Further, the opposite side of described the second planetary wheel carrier has the output shaft that can be connected with extraneous output mechanism.
Further, also comprise the input end cap that is connected in described fixed annulus one end and the output end cap that is connected in the described fixed annulus the other end.
The present invention also provides a kind of motor, and it comprises the input mechanism being connected with described the first sun gear, above-mentioned planet gear reducing mechanism and the output mechanism that is connected in described planet gear reducing mechanism.
Compared with prior art, this planet gear reducing mechanism is by the cooperation of duplex planet wheels and rotation internal gear, can realize double reduction, thereby simplify the structure of this planet gear reducing mechanism, reducing gear for some more than secondary, the quantity that it reduces part greatly, reduces costs, also make the boundary dimension of this planet gear reducing mechanism little, weight is little.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of the third-level planetary wheel reducing gear of prior art provided by the invention;
Fig. 2 is that the turning of reducing gear of third-level planetary wheel of prior art provided by the invention joined schematic diagram;
Fig. 3 is the three-dimensional exploded view of the third-level planetary wheel reducing gear that provides of the embodiment of the present invention one;
Fig. 4 is that the turning of reducing gear of third-level planetary wheel that the embodiment of the present invention one provides joined cut away view;
Fig. 5 is that the turning of reducing gear of third-level planetary wheel that the embodiment of the present invention one provides joined schematic diagram;
Fig. 6 is the decomposing schematic representation of the secondary planet wheel reducing gear that provides of the embodiment of the present invention two;
Fig. 7 is the assembling schematic diagram of the secondary planet wheel reducing gear that provides of the embodiment of the present invention two.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of planet gear reducing mechanism, comprise first sun gear that can be connected with extraneous input mechanism, also comprise the rotation internal gear that one end is engaged in the duplex planet wheels of described the first sun gear, the first row star wheel frame and meshes with the described duplex planet wheels the other end, described duplex planet wheels are movably set in a side of described the first row star wheel frame.
In the present invention, by the cooperation of duplex planet wheels and rotation internal gear, this planet gear reducing mechanism can be realized double reduction, thereby simplify the structure of this planet gear reducing mechanism, reduce costs, also make the boundary dimension of this planet gear reducing mechanism little, weight is little.
The third-level planetary of take below wheel reducing gear and secondary planet wheel reducing gear are example, in conjunction with concrete accompanying drawing, realization of the present invention is described in detail, certainly, can be also three grades of above planet gear reducing mechanisms, be not merely limited to the description in embodiment.
Embodiment one
As shown in Fig. 3～5, this planet gear reducing mechanism is third-level planetary wheel reducing gear 1, it comprises the first sun gear 103, duplex planet wheels 106, the first row star wheel frame 105, rotation internal gear 108, the second planetary gear set 110, the second planetary wheel carrier 111, and fixed annulus 113, this first sun gear 103 is connected in input shaft, its the other end is provided with external gear, be engaged in duplex planet wheels 106, these duplex planet wheels 106 have two-stage gear, its movable being connected on the first row star wheel frame 105, and it is engaged in the first sun gear 103, fixed annulus 113, can rotation in fixed annulus 113, simultaneously, also be engaged in one end of rotation internal gear 108, drive the rotation of this rotation internal gear 108, the other end of rotation internal gear 108 has the second sun gear 1081, this second sun gear 1081 is engaged in the second planetary gear set 110, the movable one end that is connected to the second planetary wheel carrier 111 of this second planetary gear set 110, and be engaged in fixed annulus 113 simultaneously, can rotation in fixed annulus 113, like this, form the basic framework of whole third-level planetary wheel reducing gear 1, extraneous input shaft drives the first sun gear 103 to rotate, 103 of this first sun gears drive duplex planet wheels 106 to rotate, because these duplex planet wheels 106 are engaged in fixed annulus 113, it can rotation in internal gear, and these duplex planet wheels 106 are also engaged in rotation internal gear 108 simultaneously, like this, rotation internal gear 108 also rotates, the rotation of rotation internal gear 108, the second sun gear 1081 on it also rotates, so far, this third-level planetary wheel reducing gear 1 completes twice deceleration, the rotation of the second sun gear 1081 drives the rotation of the second planetary gear set 110, thereby complete for the third time, slow down, so far, complete the deceleration-operation process of whole third-level planetary wheel reducing gear 1, this third-level planetary wheel reducing gear 1 is by introducing the cooperation of duplex planet wheels 106 and rotation internal gear 108, very easy realize twice deceleration, than structure of the prior art, it is simple in structure, only need a fixed annulus 113 can, required part is few, thereby dimensional structure is also little, cost is low, and weight is little.
The profile of this rotation internal gear 108 is cylindrical shape, and one side has the first internal gear that the gearwheel 1061 with duplex-gear wheels is meshed, and its opposite side has the second sun gear 1081, and this second sun gear 1081 is engageable in the second planetary gear set 110.
In the present embodiment, one side of the first row star wheel frame 105 is provided with the first sleeve in the gearwheel 1061 that is movably set in double-planetary gear, this first sleeve is evenly distributed on a side of the first row star wheel frame 105, the gearwheel 1061 of double-planetary gear is movably set in this first sleeve, can rotate around the first sleeve, this first sleeve makes the mutual location of double-planetary gear.
In the present embodiment, one side of the second planetary wheel carrier 111 has movable the second sleeve 1112 that is set in the second planet wheel in the second planetary gear set 110, its opposite side has output shaft 1111, this second sleeve 1112 is movable to be set in the second planet wheel, the second planet wheel can rotate around this second sleeve 1112, this output shaft 1111 can be connected with extraneous mechanism, realizes the transmission of power.
In the present embodiment, in fixed annulus 113, there is the through hole that has run through two ends, duplex planet wheels 106, rotation internal gear 108 and the second planetary gear set 110 are placed in this through hole, the inwall of through hole is provided with secondary annulus, gearwheel 1061 and second planet wheel of duplex planet wheels 106 are engaged in this secondary annulus, can rotate around the inwall of this through hole.
This third-level planetary wheel reducing gear 1 also comprises input bearing 104, this input bearing 104 is placed between the first sun gear 103 and the first row star wheel frame 105, be set in the first sun gear 103, like this, guarantee the concentricity that the first sun gear 103 and duplex planet wheels 106 mesh.
This third-level planetary wheel reducing gear 1 also comprises pad 107, and pad 107 is placed in respectively the two ends of rotation internal gear 108, is connected to respectively on the bi-side of rotation internal gear 108.
In order to make this third-level planetary wheel reducing gear 1 sealing, it also comprises the output end cap 114 that is placed in the input end cap 101 of fixed annulus 113 one end and is placed in fixed annulus 113 the other ends.
For the ease of being connected of this third-level planetary wheel reducing gear 1 and external device, in this input end cap 101, there is input through hole, the first sun gear 103 passes this input through hole and duplex planet wheels 106 are connected with a joggle; Output has output through hole in end cap 114, and output shaft 1111 is through this output through hole and extraneous equipment connection.
For sealing, between input end cap 101 and fixed annulus 113, be also provided with input seal ring 102, this input seal ring 102 is butt and input end cap 101 and fixed annulus 113, stable connection between the input end cap 101 that is and fixed annulus 113 respectively; On output shaft 1111, be also arranged with output seal ring 112.
In the present embodiment, third-level planetary wheel reducing gear 1 also comprises that output shaft 1111 holds 115, and this output shaft 1111 holds 115 and is sheathed in the output through hole of output end cap 114, and is set in output shaft 1111, like this, output shaft 1111 can rotate in output shaft 1111 holds 115.
In the present embodiment, in one end of output shaft 1111, be also arranged with the jump ring 116 for being connected with external device.
Embodiment two
The present embodiment and embodiment's one difference is, as shown in Fig. 6～7, this planet gear reducing mechanism is secondary planet wheel reducing gear 2, this secondary planet wheel reducing gear 2 comprises the first sun gear 201, the first row star wheel frame 203, duplex planet wheels 204, rotation internal gear 206, these the first sun gear 201 one end are connected in extraneous input shaft, its the other end is provided with external gear, be engaged in duplex planet wheels 204, these duplex planet wheels 204 have two-stage gear, rising can movable being connected on the first row star wheel frame 203, and be engaged in the first sun gear 201, simultaneously, also be engaged in rotation internal gear 206, one end of rotation internal gear 206 is engaged in duplex planet wheels 204, its the other end has the second sun gear 207, like this, there is input shaft to drive the first sun gear 201 to rotate, the rotation of the first sun gear 201 is also rotated duplex planet wheels 204, like this, rotation internal gear 206 also rotates, thereby drive the second sun gear 207 to rotate, this second sun gear 207 can with extraneous equipment connection, like this, by the cooperation of duplex planet wheels 204 and rotation internal gear 206, this secondary planet wheel reducing gear has been realized secondary speed-reducing, it is simple in structure, do not need to use fixed annulus, required part is few, cost is low, and boundary dimension is little, weight is also little.
The profile of this rotation internal gear 206 is cylindrical shape, one side has the first internal gear that the gearwheel 2041 with duplex-gear wheels is meshed, its opposite side has the second sun gear 207, this second sun gear 207 can with extraneous equipment connection, realize the transmission of power of input shaft gone out.
In the present embodiment, one side of the first row star wheel frame 203 has the first sleeve in the gearwheel 2041 that is movably set in double-planetary gear, this first sleeve is evenly distributed on a side of the first row star wheel frame 203, the gearwheel 2041 of double-planetary gear is movably set in this first sleeve, can rotate around the first sleeve, this first sleeve makes the mutual location of double-planetary gear.
This secondary planet wheel reducing gear also comprises input bearing 202, this input bearing 202 is placed between the first sun gear 201 and the first row star wheel frame 203, be set in the first sun gear 201, like this, guarantee the concentricity that the first sun gear 201 and duplex planet wheels 204 mesh.
This secondary planet wheel reducing gear also comprises pad 205, and pad 205 is placed between rotation internal gear 206 and duplex planet wheels 204, is connected to respectively on rotation internal gear 206 and duplex planet wheels 204.
In duplex planet wheels in above-described embodiment one and embodiment two, having three intermeshing double-planetary gears, certainly, can be also two or three above quantity, and concrete design can be determined according to user's actual demand.
The present invention also provides a kind of motor, this motor comprises input mechanism, above-mentioned planet gear reducing mechanism and the output mechanism that is connected in this planet gear reducing mechanism, planet gear reducing mechanism in this motor can be the planet gear reducing mechanism in embodiment one or embodiment two, can certainly be other three grades above planet gear reducing mechanisms, this input mechanism is connected in one end of the first sun gear of planet gear reducing mechanism, it drives the rotation of planet gear reducing mechanism, planet gear reducing mechanism drives output mechanism running again, like this, by the effect of planet gear reducing mechanism, the transmission of power and the speed that realize input mechanism and output mechanism reduce.
This motor uses above-mentioned planet gear reducing mechanism, and it is simple in structure, and required part is less, and boundary dimension is little, and weight is also little.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a planet gear reducing mechanism, comprise first sun gear that can be connected with extraneous input mechanism, it is characterized in that, also comprise the rotation internal gear that one end is engaged in the duplex planet wheels of described the first sun gear, the first row star wheel frame and meshes with the described duplex planet wheels the other end, described duplex planet wheels are movably set in a side of described the first row star wheel frame; Described duplex planet wheels comprise several intermeshing double-planetary gears, described double-planetary gear comprises the gearwheel that can mesh with described the first sun gear and the small gear that can mesh with described rotation internal gear one end, described gearwheel is movably set in a side of described the first row star wheel frame, and described small gear is placed in a side of described gearwheel; One end of described rotation internal gear has first internal gear that can mesh with described small gear, and the other end has the second sun gear.
2. a kind of planet gear reducing mechanism as claimed in claim 1, is characterized in that, a side of described the first row star wheel frame is provided with several movable the first sleeves that are sheathed on described gearwheel.
3. a kind of planet gear reducing mechanism as claimed in claim 2, is characterized in that, described the first sleeve is uniformly distributed in a side of described the first row star wheel frame.
4. a kind of planet gear reducing mechanism as claimed in claim 1, is characterized in that, also comprises the input bearing that is sheathed on described the first sun gear, and described input shaft bearing is between described the first sun gear and described the first row star wheel frame.
5. a kind of planet gear reducing mechanism as claimed in claim 1, it is characterized in that, described planet gear reducing mechanism also comprises the second planetary gear set, the second planetary wheel carrier and the fixed annulus that can mesh with described the second sun gear, described the second planetary gear set is movably set in a side of described the second planetary wheel carrier, and described duplex planet wheels and described the second planetary gear set are engaged in described fixed annulus.
6. a kind of planet gear reducing mechanism as claimed in claim 5, is characterized in that, the opposite side of described the second planetary wheel carrier has the output shaft that can be connected with extraneous output mechanism.
7. a kind of planet gear reducing mechanism as described in claim 5 or 6, is characterized in that, also comprises the input end cap that is connected in described fixed annulus one end and the output end cap that is connected in the described fixed annulus the other end.
8. a motor, is characterized in that, comprises the input mechanism, the planet gear reducing mechanism described in claim 1～7 any one and the output mechanism that is connected in described planet gear reducing mechanism that are connected with described the first sun gear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110104972.1A CN102261432B (en) | 2011-04-26 | 2011-04-26 | Planet gear speed reducing mechanism and motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110104972.1A CN102261432B (en) | 2011-04-26 | 2011-04-26 | Planet gear speed reducing mechanism and motor |
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| CN102261432A CN102261432A (en) | 2011-11-30 |
| CN102261432B true CN102261432B (en) | 2014-03-19 |
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| CN201110104972.1A Active CN102261432B (en) | 2011-04-26 | 2011-04-26 | Planet gear speed reducing mechanism and motor |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570710A (en) * | 2011-12-26 | 2012-07-11 | 余姚市兰山电机企业有限公司 | Vertical deceleration direct current permanent magnet motor |
| CN109630622A (en) * | 2019-02-14 | 2019-04-16 | 江苏嘉瑞丰机电设备有限公司 | Large torque slow-speed of revolution energy-saving electric machine |
| CN110834325A (en) * | 2019-09-30 | 2020-02-25 | 中国北方车辆研究所 | Two-stage planetary transmission robot joint body driver |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319627Y (en) * | 1998-02-09 | 1999-05-19 | 铁岭市生产力促进中心 | Multi-shaft duplex gear planetary differential speed reducer |
| CN200940664Y (en) * | 2006-08-16 | 2007-08-29 | 石国芳 | Gear speed reducing mechanism |
| CN202032047U (en) * | 2011-04-26 | 2011-11-09 | 捷和电机（深圳）有限公司 | Planet gear reducing mechanism and motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3877014B2 (en) * | 1996-05-22 | 2007-02-07 | 株式会社ハーモニック・ドライブ・システムズ | Series of two-stage planetary gear reducers |
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2011
- 2011-04-26 CN CN201110104972.1A patent/CN102261432B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319627Y (en) * | 1998-02-09 | 1999-05-19 | 铁岭市生产力促进中心 | Multi-shaft duplex gear planetary differential speed reducer |
| CN200940664Y (en) * | 2006-08-16 | 2007-08-29 | 石国芳 | Gear speed reducing mechanism |
| CN202032047U (en) * | 2011-04-26 | 2011-11-09 | 捷和电机（深圳）有限公司 | Planet gear reducing mechanism and motor |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-310737A 1997.12.02 |
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Owner name: JIEHE ELECTRIC MACHINE (SHENZHEN) CO., LTD. Free format text: FORMER OWNER: JIE AND ELECTRIC (SHENZHEN) CO., LTD. Effective date: 20131218 |
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Effective date of registration: 20131218 Address after: The 518104 Ring Road in the town Guangdong city of Shenzhen province Baoan District Shajing Tang Gang Da Tang Industrial Zone No. 10 building 1-7 Applicant after: Jiehe Electric Machine (Shenzhen) Co., Ltd. Address before: The 518104 Ring Road in the town Guangdong city of Shenzhen province Baoan District Shajing Tang Gang Da Tang Industrial Zone No. 8 Building C 2 to 3 Applicant before: Chiaphua Components Group of Companies |
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Effective date of registration: 20180116 Address after: CHIAP Hua Road 336000 Jiangxi city of Yichun province Fengcheng city high tech Industrial Park, No. 1 Patentee after: CHIAP Hua motor (Jiangxi) Co. Ltd. Address before: The 518104 Ring Road in the town Guangdong city of Shenzhen province Baoan District Shajing Tang Gang Da Tang Industrial Zone No. 10 building 1-7 Patentee before: Jiehe Electric Machine (Shenzhen) Co., Ltd. |