CN103335066A - Planet gear speed reduction device - Google Patents
Planet gear speed reduction device Download PDFInfo
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- CN103335066A CN103335066A CN2013102629117A CN201310262911A CN103335066A CN 103335066 A CN103335066 A CN 103335066A CN 2013102629117 A CN2013102629117 A CN 2013102629117A CN 201310262911 A CN201310262911 A CN 201310262911A CN 103335066 A CN103335066 A CN 103335066A
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- gear
- planet
- input shaft
- planetary gear
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Abstract
The invention relates to a planet gear speed reduction device comprising a large pulley, an input shaft and a planet gear speed reducing component, wherein the large pulley drives the input shaft to rotate; the planet gear speed reducing component comprises a gear ring, as well as a sun wheel, a plurality of primary planet gears, a primary planet bracket, a plurality of secondary planet gears and a secondary planet bracket which are made of plastic and are sequentially arranged according to torque transmission sequence; the gear ring is meshed with the interiors of the primary planet gears and the second planet gears; the primary planet bracket is provided with an intermediate junction part meshed with the secondary planet gears; the input shaft drives the sun wheel to rotate; and the secondary planet bracket is provided with an output junction part. By adopting such a structure, the planet gear speed reduction device is compact in structure and less in noise, and can ensure sufficient torque output in a transmission process by virtue of the primary planet gears and the second planet gears.
Description
Technical field
The present invention relates to a kind of speed reducer, relate in particular to a kind of epicyclic reduction gear unit for paper breaker.
Background technique
Paper breaker not only has secret function as a kind of privacy device, has certain cleaning ability simultaneously, becomes Bao Zheng's equipment indispensable in the office gradually.Along with modern society constantly develops, paper breaker not merely requires to have the shredded paper function, also requirement can be pulverized some hard articles such as CD simultaneously, and general paper breaker, the gear reducers that adopt more, be the moment of torsion that guarantees that output is enough, volume is bigger usually, and noise is bigger in the process of transmission.
Summary of the invention
The objective of the invention is to overcome above-mentioned prior art problems, provide a kind of compact structure noise less epicyclic reduction gear unit, guaranteeing simultaneously has enough moment of torsion output.
The objective of the invention is to be achieved through the following technical solutions:
A kind of epicyclic reduction gear unit, comprise large pulley, input shaft and planetary gear speed-reduction assembly, described large pulley drives described input shaft and rotates, that described planetary gear speed-reduction assembly comprises is that gear ring and plastics are made, set gradually by the moment of torsion pass order sun gear, some primary planet pinions, one-level planet stent, some secondary planetary gears and secondary planet support, engagement in described gear ring and described primary planet pinion and the described secondary planetary gear; Described one-level planet stent has the middle interconnecting piece that is meshed with described secondary planetary gear, and described input shaft drives described sun gear and rotates, and described secondary planet support has the output joint; Described primary planet pinion is by the first needle roller pin and described rotatable connection of one-level planet stent; Described secondary planetary gear is by the second needle roller pin and described rotatable connection of secondary planet support.
Further, described primary planet pinion quantity is three, and described secondary planetary gear quantity is four.
Further, an end of described gear ring and described secondary planet support homonymy in axial direction protrudes out and forms circular arc encirclement portion, and the end face of described circular arc encirclement portion has some mounting holes.
Further, an end of described gear ring and described input shaft homonymy fixedly has gear cap, and the pulley lid is fixedly arranged on the described gear cap, and described pulley lid and described gear cap form hemi-closure space, and described large pulley is installed in the described hemi-closure space by bearing.
Epicyclic reduction gear unit of the present invention, comprise large pulley, input shaft and planetary gear speed-reduction assembly, described large pulley drives described input shaft and rotates, that described planetary gear speed-reduction assembly comprises is that gear ring and plastics are made, set gradually by the moment of torsion pass order sun gear, some primary planet pinions, one-level planet stent, some secondary planetary gears and secondary planet support, engagement in described gear ring and described primary planet pinion and the described secondary planetary gear; Described one-level planet stent has the middle interconnecting piece that is meshed with described secondary planetary gear, and described input shaft drives described sun gear and rotates, and described secondary planet support has the output joint; Described primary planet pinion is by the first needle roller pin and described rotatable connection of one-level planet stent; Described secondary planetary gear is by the second needle roller pin and described rotatable connection of secondary planet support.The epicyclic reduction gear unit of this structure, its compact structure noise is less, in transmission process, by the setting of primary planet pinion and secondary planetary gear, has guaranteed enough moment of torsion output.
Description of drawings
Fig. 1 is the right elevation in epicyclic reduction gear unit one specific embodiment of the present invention;
Fig. 2 is the sectional structure schematic representation along A-A line among Fig. 1.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below.As shown in Figures 1 and 2, the described a kind of epicyclic reduction gear unit of the embodiment of the invention, comprise large pulley 1, input shaft 2 and planetary gear speed-reduction assembly 3, described large pulley 1 drives described input shaft 2 and rotates, that described planetary gear speed-reduction assembly 3 comprises is that gear ring 31 and plastics are made, by sun gear 32, some primary planet pinions 33, one-level planet stent 34, some secondary planetary gears 35 and secondary planet support 36 that the moment of torsion pass order sets gradually, engagement in described gear ring 31 and described primary planet pinion 33 and the described secondary planetary gear 35; Described one-level planet stent 34 has the middle interconnecting piece 341 that is meshed with described secondary planetary gear 35, and described input shaft 2 drives described sun gear 32 and rotates, and described secondary planet support 36 has output joint 361; Described primary planet pinion 33 is by the first needle roller pin 37 and described 34 rotatable connections of one-level planet stent; Described secondary planetary gear 35 is by the second needle roller pin 38 and described 36 rotatable connections of secondary planet support.
Concrete, described primary planet pinion 33 quantity are three, described secondary planetary gear 35 quantity are four.
In conjunction with shown in Figure 1, an end of described gear ring 31 and described secondary planet support 36 homonymies in axial direction protrudes out and forms circular arc encirclement portion 311, and the end face of described circular arc encirclement portion 311 has some mounting holes.In the present embodiment, the arc angle of described circular arc encirclement portion 311 is 232 °, has seven mounting holes in the described circular arc encirclement portion 311.Described output joint 361 has external toothing portion 3611 and the cross section is the center hole 3612 of circular arc, in order to output torque.
Again in conjunction with shown in Figure 2, described gear ring 31 fixedly has gear cap 11 with an end of described input shaft 2 homonymies, pulley lid 12 is fixedly arranged on the described gear cap 11, and described pulley lid 12 and described gear cap 11 form hemi-closure space, and described large pulley 1 is installed in the described hemi-closure space by bearing 13.More specifically, the both sides of described large pulley 1 arrange a bearing 13 respectively, and the inner ring of described bearing 13 is fixedlyed connected with described large pulley 1, and the outer ring of described bearing 13 is covered 12 with described gear cap 11 or described pulley and fixedlyed connected.
Claims (4)
1. epicyclic reduction gear unit, comprise large pulley, input shaft and planetary gear speed-reduction assembly, described large pulley drives described input shaft and rotates, it is characterized in that, that described planetary gear speed-reduction assembly comprises is that gear ring and plastics are made, set gradually by the moment of torsion pass order sun gear, some primary planet pinions, one-level planet stent, some secondary planetary gears and secondary planet support, engagement in described gear ring and described primary planet pinion and the described secondary planetary gear; Described one-level planet stent has the middle interconnecting piece that is meshed with described secondary planetary gear, and described input shaft drives described sun gear and rotates, and described secondary planet support has the output joint; Described primary planet pinion is by the first needle roller pin and described rotatable connection of one-level planet stent; Described secondary planetary gear is by the second needle roller pin and described rotatable connection of secondary planet support.
2. epicyclic reduction gear unit as claimed in claim 1 is characterized in that, described primary planet pinion quantity is three, and described secondary planetary gear quantity is four.
3. epicyclic reduction gear unit as claimed in claim 1 is characterized in that, an end of described gear ring and described secondary planet support homonymy in axial direction protrudes out and forms circular arc encirclement portion, and the end face of described circular arc encirclement portion has some mounting holes.
4. as claim 1 or 3 described epicyclic reduction gear units, it is characterized in that, one end of described gear ring and described input shaft homonymy fixedly has gear cap, the pulley lid is fixedly arranged on the described gear cap, described pulley lid and described gear cap form hemi-closure space, and described large pulley is installed in the described hemi-closure space by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262911.7A CN103335066B (en) | 2013-06-28 | 2013-06-28 | A kind of epicyclic reduction gear unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262911.7A CN103335066B (en) | 2013-06-28 | 2013-06-28 | A kind of epicyclic reduction gear unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103335066A true CN103335066A (en) | 2013-10-02 |
| CN103335066B CN103335066B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310262911.7A Active CN103335066B (en) | 2013-06-28 | 2013-06-28 | A kind of epicyclic reduction gear unit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5692989A (en) * | 1996-06-06 | 1997-12-02 | Kamlukin; Igor | Self aligning planetary gear transmission & speed reducer |
| CN201826342U (en) * | 2010-09-02 | 2011-05-11 | 大连新氏传动科技有限公司 | Walking speed reducer for excavator |
| JP2011179641A (en) * | 2010-03-03 | 2011-09-15 | Ricoh Co Ltd | Planetary gear speed reducing mechanism having fixed internal gear, image support driving device and image forming apparatus |
| CN202790340U (en) * | 2012-07-24 | 2013-03-13 | 徐工集团工程机械股份有限公司科技分公司 | Speed reducer |
| CN203374735U (en) * | 2013-06-28 | 2014-01-01 | 无锡麻德克斯精机有限公司 | Planetary gear reducer |
-
2013
- 2013-06-28 CN CN201310262911.7A patent/CN103335066B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5692989A (en) * | 1996-06-06 | 1997-12-02 | Kamlukin; Igor | Self aligning planetary gear transmission & speed reducer |
| JP2011179641A (en) * | 2010-03-03 | 2011-09-15 | Ricoh Co Ltd | Planetary gear speed reducing mechanism having fixed internal gear, image support driving device and image forming apparatus |
| CN201826342U (en) * | 2010-09-02 | 2011-05-11 | 大连新氏传动科技有限公司 | Walking speed reducer for excavator |
| CN202790340U (en) * | 2012-07-24 | 2013-03-13 | 徐工集团工程机械股份有限公司科技分公司 | Speed reducer |
| CN203374735U (en) * | 2013-06-28 | 2014-01-01 | 无锡麻德克斯精机有限公司 | Planetary gear reducer |
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| Publication number | Publication date |
|---|---|
| CN103335066B (en) | 2016-08-10 |
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| C06 | Publication | ||
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| C53 | Correction of patent of invention or patent application | ||
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Address after: 214101 No. two, No. 294, Furong Road, Xishan Economic Development Zone, Jiangsu, Wuxi Applicant after: Wuxi Matex Precision Co., Ltd. Address before: Road Industrial Park in Jiangsu province Wuxi city spring 214101 Xishan Economic Development Zone 6 room 7 Applicant before: Wuxi Matex Precision Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
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