CN201521627U - Axial positioning device of planet gear - Google Patents
Axial positioning device of planet gear Download PDFInfo
- Publication number
- CN201521627U CN201521627U CN 200920235476 CN200920235476U CN201521627U CN 201521627 U CN201521627 U CN 201521627U CN 200920235476 CN200920235476 CN 200920235476 CN 200920235476 U CN200920235476 U CN 200920235476U CN 201521627 U CN201521627 U CN 201521627U
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- CN
- China
- Prior art keywords
- side bearing
- bearing
- planetary pinion
- positioning device
- axial positioning
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H2057/085—Bearings for orbital gears
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Abstract
The utility model relates to an axial positioning device of planet gear, wherein the planet gear is supported on the planet gear wheel shaft of a planet carrier through a left side bearing and a right side bearing, a gap is reserved axially between the left and the right bearings, a ring groove is formed circumferentially on the inner wall of the planet gear wheel shaft hole in the gap, a stop snap ring is inserted into the ring groove, the part of the stop snap ring inserted into the ring groove is matched with the inner cavity of the ring groove in shape, the two side surfaces of the stop snap ring extending out of the ring groove are propped against the left and the right bearings respectively, thereby limiting the axial displacement between the planet gear and the bearings, and the planet carrier limits the axial displacement of the bearings through the inner rings of the bearings, so as to realize the axial positioning of the planet gear at last. The utility model can position the planet gear wheel shaft precisely and easily, and has the advantages of reliable operation, and convenient assembly and disassembly.
Description
Technical field
The utility model relates to planetary gear construction, relates in particular to planetary axial direction positioning device.
Background technique
One or more levels planetary gear system is generally adopted in the planetary pinion transmission, utilizes the power dividing of planetary gear system can reduce the load that gear bears, and dwindles the volume of driving mechanism, is particularly suitable for using on wind power generation gear case.
Present planetary axially locating is the axial displacement that limits planetary pinion, planet wheel pin by bearing respectively, thereby realizes the location.With regard to working principle, can be divided into and utilize dependence friction or magnitude of interference qualification axial displacement and utilize mechanical structure to limit two kinds of methods of axial displacement.Wherein, the interference installation had a negative impact to the planetary life-span, therefore utilized the method for mechanical structure restrictive axial displacement to use more.Utilize mechanical structure structure qualification axial displacement, or reserve spacing ring washer, or movable back-up ring is set,, cause cost of production to increase because of the machining accuracy height at the planetary gear shaft hole two ends at the planetary gear shaft hole middle part.
Application number is that 200710199322.3 Chinese patent application discloses a kind of planetary gear system, is equipped with radial needle bearing at planetary pinion and planet pin, by packing ring at axially mounting planetary pinion and radial needle bearing, thereby realize axially locating.This structure middle washer matches with carriage, planetary pinion, radial needle bearing simultaneously, and there is slide relative in two fitting surfaces of packing ring, are unfavorable for promoting the use of.
Therefore, need the axial position structure of a kind of novel planetary pinion of design.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provides a kind of novel planetary pinion axial positioning device, reduces difficulty of processing, is convenient to install and and dismounting.
The purpose of this utility model is achieved through the following technical solutions:
The axial positioning device of planetary pinion, planetary pinion is bearing on the planet pin that is arranged at planet carrier by bearing, characteristics are: described bearing comprises left side bearing and right side bearing, axially leave the space between left side bearing and the right side bearing, planetary gear shaft hole inwall edge in described gap circumferentially is provided with annular groove, be fitted with the stop ring in the described annular groove, the profile of inserting the stop loop section in the described annular groove matches with the inner chamber of described annular groove, the bi-side that described stop snap ring exposes the annular groove part offset with described left side bearing and right side bearing respectively, thereby define the axial displacement between planetary pinion and bearing, and planet carrier defines the axial displacement of bearing by bearing inner race, has finally realized planetary axially locating.
Further, the axial positioning device of above-mentioned planetary pinion, wherein, between described stop snap ring and left side bearing, be furnished with left packing ring, be furnished with right packing ring between described stop snap ring and right side bearing, described stop snap ring offsets, offsets by right packing ring and right side bearing by left packing ring and left side bearing.
Further, the axial positioning device of above-mentioned planetary pinion, wherein, described left side bearing and right side bearing are roller bearing.
Further, the axial positioning device of above-mentioned planetary pinion, wherein, the quantity of described left side bearing and right side bearing is one.
Further, the axial positioning device of above-mentioned planetary pinion, wherein, described left side bearing and right side bearing are the roller bearing of no bearing outer ring, bearing roller directly cooperates with the planetary gear shaft hole inwall.
Again further, the axial positioning device of above-mentioned planetary pinion, wherein, the cross section of described annular groove is a rectangle.
Again further, the axial positioning device of above-mentioned planetary pinion, wherein, described stop snap ring and annular groove are interference fit.
The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:
The axial positioning device of the utility model planetary pinion, by left side bearing and right side bearing planetary pinion is bearing on the planet pin, at planetary gear shaft hole middle part processing annular groove, the stop snap ring is installed in the annular groove, two packing rings one worked about the stop snap ring cooperated, thereby define the axial displacement between planetary pinion and bearing, and planet carrier defines the axial displacement of bearing by bearing inner race, has finally realized planetary axially locating.This device can make disposable the machining of bearing fitting surface of whole planetary gear shaft hole, machining accuracy height; Simultaneously, this device is installed, convenient disassembly, can effectively reduce cost, can highi degree of accuracy and easily carry out the location of planet pin, operational safety height.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: structural representation of the present utility model;
The implication of each reference character sees the following form among the figure:
| Reference character | Implication | Reference character | Implication | Reference character | Implication |
| 1 | |
2 | |
3 | Planetary pinion |
| 4 | The |
5 | The left side bearing | 6 | The right side bearing |
| 7 | Left side packing ring | 8 | Right packing ring | 9 | Planet |
| 10 | Planet |
11 | Sun gear |
Embodiment
As shown in Figure 1, the axial positioning device of planetary pinion, planetary pinion 3 is installed in the space of planet carrier 10 formation, planetary pinion 3 is supported on the planet pin 9 freely by left side bearing 5 and 6 rotations of right side bearing, planet pin 9 is installed in the planet carrier 10, axially leave the space between left side bearing 5 and the right side bearing 6, planetary gear shaft hole inwall edge in the gap circumferentially is provided with annular groove, the cross section of annular groove is a rectangle, stop snap ring 4 is installed in the annular groove, the profile of inserting the stop loop section in the annular groove matches with the inner chamber of annular groove, stop snap ring 4 is an interference fit with annular groove, the internal diameter of stop snap ring is less than the aperture of planetary pinion 3, between stop snap ring 4 and left side bearing 5, be furnished with left packing ring 7, between stop snap ring 4 and right side bearing 6, be furnished with right packing ring 8, stop snap ring 4 offsets with left side bearing 5 by left packing ring 7, stop snap ring 4 offsets with right side bearing 6 by right packing ring 8, thereby define the axial displacement of 6 on planetary pinion 3 and left side bearing 5 and right side bearing, and the inner ring of planet carrier 10 by left side bearing 5 and right side bearing 6 defines the axial displacement of left side bearing 5 and right side bearing 6, finally realized the axially locating of planetary pinion 3.
Wherein, left side bearing 5 and right side bearing 6 are the roller bearing of no bearing outer ring, and bearing roller directly cooperates with the shaft hole inner wall of planetary pinion 3.
In addition, on planet carrier 10, planet pin 9, process radially pin-and-hole respectively, radially be pressed into a fixing pin (when planet carrier 10 and 9 magnitude of interference of planet pin are enough, not needing to be provided with this fixing pin) in the pin-and-hole two, thereby planet pin 9 is fixed on the planet carrier 10.Planet pin 9 and the planet carrier 10 common axial displacements that limit planetary pinion 3 axis hole inner bearings; Bearing limits the axial displacement of planetary pinion 3 by stop snap ring 4 and packing ring, thereby defines the relative position of planetary pinion 3 and planet carrier 10, guarantees the accurate engagement of planetary pinion 3 and gear ring 2 and sun gear 11.The effect of casing 1 is fixing and component such as Support Gear, bearing.
Above-mentioned planet pin is to positioning device, by left side bearing 5 and right side bearing 6 planetary pinion 3 is bearing on the planet pin 9, left side bearing 5 and right side bearing 6 are roller bearing, about each one be symmetrical distribution, roller bearing can whether need select bearing outer ring according to the structure needs; At planetary gear shaft hole middle part processing annular groove, stop snap ring 4 is installed in the annular groove, and with about two packing rings one work (according to the practical structures needs, can adjust gasket thickness, or cancellation packing ring), thereby define the axial displacement between planetary pinion and bearing, guarantee planetary axially locating.
This positioning device can make disposable the machining of bearing fitting surface of whole planetary gear shaft hole, machining accuracy height; Simultaneously, this device is installed, convenient disassembly, can effectively reduce cost, can highi degree of accuracy and easily carry out the location of planet pin, use reliable.
What need understand is: above-mentioned explanation is not to be to restriction of the present utility model, and in the utility model design scope, the interpolation of being carried out, conversion, replacement etc. also should belong to protection domain of the present utility model.
Claims (7)
1. the axial positioning device of planetary pinion, planetary pinion is bearing on the planet pin that is arranged at planet carrier by bearing, it is characterized in that: described bearing comprises left side bearing and right side bearing, axially leave the space between left side bearing and the right side bearing, planetary gear shaft hole inwall edge in described gap circumferentially is provided with annular groove, be fitted with the stop ring in the described annular groove, the profile of inserting the stop loop section in the described annular groove matches with the inner chamber of described annular groove, the bi-side that described stop snap ring exposes the annular groove part offset with described left side bearing and right side bearing respectively, to limit the axial displacement between planetary pinion and bearing.
2. the axial positioning device of planetary pinion according to claim 1, it is characterized in that: between described stop snap ring and left side bearing, be furnished with left packing ring, be furnished with right packing ring between described stop snap ring and right side bearing, described stop snap ring offsets, offsets by right packing ring and right side bearing by left packing ring and left side bearing.
3. the axial positioning device of planetary pinion according to claim 1 and 2 is characterized in that: described left side bearing and right side bearing are roller bearing.
4. the axial positioning device of planetary pinion according to claim 3 is characterized in that: described left side bearing and right side bearing are the roller bearing of no bearing outer ring, and bearing roller directly cooperates with the planetary gear shaft hole inwall.
5. the axial positioning device of planetary pinion according to claim 1 and 2 is characterized in that: the quantity of described left side bearing and right side bearing is one.
6. the axial positioning device of planetary pinion according to claim 1 is characterized in that: the cross section of described annular groove is a rectangle.
7. the axial positioning device of planetary pinion according to claim 1 is characterized in that: described stop snap ring and annular groove are interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920235476 CN201521627U (en) | 2009-09-28 | 2009-09-28 | Axial positioning device of planet gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920235476 CN201521627U (en) | 2009-09-28 | 2009-09-28 | Axial positioning device of planet gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521627U true CN201521627U (en) | 2010-07-07 |
Family
ID=42507803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920235476 Expired - Fee Related CN201521627U (en) | 2009-09-28 | 2009-09-28 | Axial positioning device of planet gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521627U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913610A (en) * | 2012-10-16 | 2013-02-06 | 中国北方车辆研究所 | Floating gear ring axial positioning mechanism used for high-speed planet row |
| CN103415700A (en) * | 2011-03-08 | 2013-11-27 | Skf公司 | Planetary transmission of a wind turbine |
| CN104633075A (en) * | 2014-12-11 | 2015-05-20 | 上海梅山科技发展有限公司 | Novel planet wheel assembly transmission mechanism and assembly method thereof |
| CN104747701A (en) * | 2015-03-31 | 2015-07-01 | 中国重型机械研究院股份公司 | Axial limiting device and method for planet carrier of rotary type planetary gearbox |
| EP2730805A4 (en) * | 2011-07-08 | 2016-11-23 | Sumitomo Heavy Industries | Reduction gear |
| CN111188893A (en) * | 2018-11-14 | 2020-05-22 | 舍弗勒技术股份两合公司 | Planetary carrier gear set |
-
2009
- 2009-09-28 CN CN 200920235476 patent/CN201521627U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103415700A (en) * | 2011-03-08 | 2013-11-27 | Skf公司 | Planetary transmission of a wind turbine |
| EP2730805A4 (en) * | 2011-07-08 | 2016-11-23 | Sumitomo Heavy Industries | Reduction gear |
| CN102913610A (en) * | 2012-10-16 | 2013-02-06 | 中国北方车辆研究所 | Floating gear ring axial positioning mechanism used for high-speed planet row |
| CN104633075A (en) * | 2014-12-11 | 2015-05-20 | 上海梅山科技发展有限公司 | Novel planet wheel assembly transmission mechanism and assembly method thereof |
| CN104633075B (en) * | 2014-12-11 | 2017-09-12 | 上海梅山科技发展有限公司 | A kind of novel planetary wheel assembly transmission mechanism and its assembly method |
| CN104747701A (en) * | 2015-03-31 | 2015-07-01 | 中国重型机械研究院股份公司 | Axial limiting device and method for planet carrier of rotary type planetary gearbox |
| CN111188893A (en) * | 2018-11-14 | 2020-05-22 | 舍弗勒技术股份两合公司 | Planetary carrier gear set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Patentee after: CRRC QISHUYAN INSTITUTE CO., LTD. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 1, No. Patentee before: Nanche Qisuyan Engine and Vehicle Technics Institute Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20180928 |