CN102518754A - Multi-stage planetary speed reducing device - Google Patents
Multi-stage planetary speed reducing device Download PDFInfo
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- CN102518754A CN102518754A CN2011104482866A CN201110448286A CN102518754A CN 102518754 A CN102518754 A CN 102518754A CN 2011104482866 A CN2011104482866 A CN 2011104482866A CN 201110448286 A CN201110448286 A CN 201110448286A CN 102518754 A CN102518754 A CN 102518754A
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- aperture
- sun gear
- contact
- steel ball
- gear
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- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 230000000712 assembly Effects 0.000 description 9
- 238000000429 assembly Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000005405 multipole Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a multi-stage planetary speed reducing device. The device comprises a rotor shaft and at least two stages of planetary speed reducing components, wherein each planetary speed reducing component comprises a sun gear, an inner gear and a planetary gear arranged between the sun gear and the inner gear and meshed with the sun gear and the inner gear at the same time; a point contact component is arranged on the contact face between the first stage of sun gear and the rotor shaft; another point contact component is also arranged on the contact face between two adjacent stages of sun gears. Because the point contact components are arranged on the contact face between the first stage of sun gear and the rotor shaft, and on the contact face between two adjacent stages of sun gears, and the plane contact between the two adjacent stages of sun gears is changed into point contact, so a friction force of transmission is greatly reduced, and the device is simple in structure and is convenient to mount and operate; and the transmission efficiency is improved.
Description
Technical field
The present invention relates to a kind of miniature speed reducer, relate in particular to a kind of multistage planet speed reducer that is used for the reduced energy storage electric motor drive frictional force on switch or the circuit breaker.
Background technique
At present, the energy storage electric motor drive device that is used on switch or the circuit breaker all is equipped with miniature speed reducer, and this miniature speed reducer adopts multipole planetary gear speed-reduction; Each utmost point planetary reduction gear assembly all is coaxial vertical installations; Planetary gear reduction box is when transmission, and the gear of its lowermost end receives very big frictional force when transmission, and this frictional force is that the cumulative stress of all gears of its upper end is transformed; This frictional force has reduced the transmission efficiency of gear reduction box greatly, causes the waste of energy.Generally reduce the frictional force of transmission in the prior art through the machining accuracy that improves gear, but this need drop into high-precision gear machining apparatus and detection facility, for medium-sized and small enterprises, this is a bigger fund input, is difficult to apply.
Summary of the invention
The object of the present invention is to provide a kind of multistage planet speed reducer; It has simple in structure, installation, the easy to operate and characteristics that reduce gearing friction, has effectively solved the problem that frictional force is big, transmission efficiency is low that miniature speed reducer adopts multipole planetary gear speed-reduction to exist in the existing technology.
The objective of the invention is to realize through following technological scheme:
A kind of multistage planet speed reducer; It comprises rotor shaft and two-stage planetary reduction gear assembly at least; Said planetary reduction gear assembly comprises sun gear, internal gear and is provided with and the planet wheel that also is meshed with it simultaneously between the two; Wherein, between the surface of contact of said first order sun gear and rotor shaft a contact assembly is set, a contact assembly also is set between the surface of contact of adjacent two-stage sun gear.
Especially; Said multistage planet speed reducer comprises third-level planetary deceleration assembly, and the central position of the surface of contact of the sun gear of said rotor shaft and first order planetary reduction gear assembly offers an aperture, in the said aperture steel ball is installed; The internal diameter of said aperture and the cylindrical of steel ball are drive fit; And the degree of depth of said aperture is less than the diameter of steel ball, and steel ball is placed in the aperture and is connected as a single entity with rotor shaft, offers an aperture on the sun gear surface of contact of the sun gear of said first order planetary reduction gear assembly and second level planetary reduction gear assembly; In the said aperture steel ball is installed; The internal diameter of said aperture and the cylindrical of steel ball are drive fit, and the degree of depth of said aperture is less than the diameter of steel ball, and the sun gear that steel ball is placed in the aperture with first order planetary reduction gear assembly is connected as a single entity.
Beneficial effect of the present invention does, between the first order sun gear of said multistage planet speed reducer and the surface of contact of rotor shaft a contact assembly is set, and a contact assembly also is set between the surface of contact of adjacent two-stage sun gear.Change the plane contact between traditional adjacent two-stage sun gear into a some contact, significantly reduced the frictional force of transmission, not only simple in structure, installation, easy to operate; And improved transmission efficiency.
Description of drawings
According to accompanying drawing and embodiment the present invention is done further explain below.
Fig. 1 is the structural representation of multistage planet speed reducer of the present invention;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1;
Fig. 3 is the partial enlarged drawing at B place among Fig. 1.
Among the figure:
1, rotor shaft; 2, first order planetary assemblies sun gear; 3, planet wheel; 4, second level planetary assemblies sun gear; 5, internal gear; 6, aperture; 7, steel ball.
Embodiment
Please referring to figs. 1 through shown in Figure 3, Fig. 1 is the structural representation of multistage planet speed reducer of the present invention; Fig. 2 is the partial enlarged drawing at A place among Fig. 1; Fig. 3 is the partial enlarged drawing at B place among Fig. 1.
In the present embodiment; A kind of multistage planet speed reducer comprises rotor shaft 1 and third-level planetary deceleration assembly; Said planetary reduction gear assembly comprises sun gear, internal gear 5 and is provided with and the planet wheel 3 that also is meshed with it simultaneously between the two; Said rotor shaft 1 offers an aperture 7 with the central position of the surface of contact of first order planetary assemblies sun gear 2, in the said aperture 6 steel ball 7 is installed, and the cylindrical of the internal diameter of said aperture 6 and steel ball 7 is a drive fit; And the degree of depth of said aperture 6 is less than the diameter of steel ball 7, and steel ball 7 is placed in the aperture 6 and is connected as a single entity with rotor shaft 1.
Offer an aperture 6 on the surface of contact of said first order planetary assemblies sun gear 2 and second level planetary assemblies sun gear 4; In the said aperture 6 steel ball 7 is installed; The cylindrical of the internal diameter of said aperture 6 and steel ball 7 is a drive fit; And the degree of depth of said aperture 6 is less than the diameter of steel ball 7, and steel ball 7 is placed in the aperture 6 and is connected as a single entity with first order planetary assemblies sun gear 2.
Above-mentioned multistage planet speed reducer makes between rotor shaft 1 and the first order planetary assemblies sun gear 2 through steel ball 7 and contacts for point; Also contact between first order planetary assemblies sun gear 2 and the second level planetary assemblies sun gear 4 for point; Significantly reduced the frictional force of transmission; Not only simple in structure, installation, easy to operate; And improved transmission efficiency.
Claims (2)
1. multistage planet speed reducer; It comprises rotor shaft and two-stage planetary reduction gear assembly at least; Said planetary reduction gear assembly comprises sun gear, internal gear and is provided with and the planet wheel that also is meshed with it simultaneously between the two; It is characterized in that: between the surface of contact of said first order sun gear and rotor shaft a contact assembly is set, a contact assembly also is set between the surface of contact of adjacent two-stage sun gear.
2. multistage planet speed reducer according to claim 1; It is characterized in that: said multistage planet speed reducer comprises third-level planetary deceleration assembly; The central position of the surface of contact of the sun gear of said rotor shaft and first order planetary reduction gear assembly offers an aperture; In the said aperture steel ball is installed, the internal diameter of said aperture and the cylindrical of steel ball are drive fit, and the degree of depth of said aperture is less than the diameter of steel ball; Steel ball is placed in the aperture and is connected as a single entity with rotor shaft; Offer an aperture on the sun gear surface of contact of the sun gear of said first order planetary reduction gear assembly and second level planetary reduction gear assembly, in the said aperture steel ball is installed, the internal diameter of said aperture and the cylindrical of steel ball are drive fit; And the degree of depth of said aperture is less than the diameter of steel ball, and steel ball is placed in the aperture and the sun gear of first order planetary reduction gear assembly is connected as a single entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110448286.6A CN102518754B (en) | 2011-12-29 | 2011-12-29 | A kind of Multi-stage planetary speed reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110448286.6A CN102518754B (en) | 2011-12-29 | 2011-12-29 | A kind of Multi-stage planetary speed reducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518754A true CN102518754A (en) | 2012-06-27 |
| CN102518754B CN102518754B (en) | 2016-06-15 |
Family
ID=46289783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110448286.6A Active CN102518754B (en) | 2011-12-29 | 2011-12-29 | A kind of Multi-stage planetary speed reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102518754B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720735A (en) * | 2016-03-29 | 2016-06-29 | 沈阳兴华航空电器有限责任公司 | Speed reduction mechanism for motor |
| CN108626344A (en) * | 2018-04-13 | 2018-10-09 | 意宁液压股份有限公司 | Hydraulic transmission for hydraulic electricity generation |
| CN115289185A (en) * | 2022-07-19 | 2022-11-04 | 深圳市赫牌实业有限公司 | Coaxial friction transmission |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030109354A1 (en) * | 2001-10-31 | 2003-06-12 | Denso Corporation | Starter having thrust receiving member between motor shaft and output shaft |
| CN2625649Y (en) * | 2003-06-28 | 2004-07-14 | 贵州群建齿轮有限公司 | Multistage planetary gear transmission device |
| CN201150022Y (en) * | 2007-12-17 | 2008-11-12 | 许晓华 | Planetary gear gearbox as well as speed reducing motor thereof |
| CN201351713Y (en) * | 2009-01-16 | 2009-11-25 | 沈世平 | Planetary gear speed reducing mechanism of inflatable pump |
| CN102252086A (en) * | 2011-05-31 | 2011-11-23 | 康少松 | Planetary speed reducer capable of reducing transmission friction heating |
| CN202392052U (en) * | 2011-12-29 | 2012-08-22 | 无锡江南奕帆电力传动科技股份有限公司 | Multilevel planetary reduction gear |
-
2011
- 2011-12-29 CN CN201110448286.6A patent/CN102518754B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030109354A1 (en) * | 2001-10-31 | 2003-06-12 | Denso Corporation | Starter having thrust receiving member between motor shaft and output shaft |
| CN2625649Y (en) * | 2003-06-28 | 2004-07-14 | 贵州群建齿轮有限公司 | Multistage planetary gear transmission device |
| CN201150022Y (en) * | 2007-12-17 | 2008-11-12 | 许晓华 | Planetary gear gearbox as well as speed reducing motor thereof |
| CN201351713Y (en) * | 2009-01-16 | 2009-11-25 | 沈世平 | Planetary gear speed reducing mechanism of inflatable pump |
| CN102252086A (en) * | 2011-05-31 | 2011-11-23 | 康少松 | Planetary speed reducer capable of reducing transmission friction heating |
| CN202392052U (en) * | 2011-12-29 | 2012-08-22 | 无锡江南奕帆电力传动科技股份有限公司 | Multilevel planetary reduction gear |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720735A (en) * | 2016-03-29 | 2016-06-29 | 沈阳兴华航空电器有限责任公司 | Speed reduction mechanism for motor |
| CN108626344A (en) * | 2018-04-13 | 2018-10-09 | 意宁液压股份有限公司 | Hydraulic transmission for hydraulic electricity generation |
| CN115289185A (en) * | 2022-07-19 | 2022-11-04 | 深圳市赫牌实业有限公司 | Coaxial friction transmission |
| CN115289185B (en) * | 2022-07-19 | 2024-07-12 | 深圳市赫牌实业有限公司 | Coaxial friction speed changer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102518754B (en) | 2016-06-15 |
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| CB03 | Change of inventor or designer information |
Inventor after: Chen Yuanji Inventor after: Chen Yifeng Inventor before: Chen Yuanji Inventor before: Chen Bojin Inventor before: Chen Yifeng Inventor before: Chu Xiaomin Inventor before: Ge Xin Inventor before: Chen Yimin |
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| GR01 | Patent grant |