CN203230835U - Planetary gear resilient support structure - Google Patents
Planetary gear resilient support structure Download PDFInfo
- Publication number
- CN203230835U CN203230835U CN 201320066144 CN201320066144U CN203230835U CN 203230835 U CN203230835 U CN 203230835U CN 201320066144 CN201320066144 CN 201320066144 CN 201320066144 U CN201320066144 U CN 201320066144U CN 203230835 U CN203230835 U CN 203230835U
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- Prior art keywords
- planetary
- planet
- pin
- carriage
- planetary gear
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Abstract
Provided is a planetary gear resilient support structure, mainly composed of a carriage, a planetary gear, bearings, a space ring and a planetary pin. The planetary gear is supported on a planetary shaft through the bearings; at least one side end of each bearing is locked by a circular nut; the outside of the circular nut is equipped with an adjusting space ring and a spring collar; the planetary shaft is sleeved on and in interference connection with the planetary pin; the carriage located on one side of the planetary shaft is also sleeved on and in interference connection with the planetary pin. The bearings are two tapered roller bearings having no outer rings and arranged side by side; one end part of the planetary pin is provided with a circular nut used for axial positioning; a position-restricted tapered ring capable of performing overload protection on the planetary pin under the overload condition of the planetary gear is arranged between the carriage and the planetary shaft; the planetary pin performs elastic deformation to generate offset, thereby effectively making up processing errors between the planetary gear and a planetary carrier, realizing good uniform load and guaranteeing synchromesh of a plurality of planetary gears.
Description
Technical field
The utility model relates to a kind of novel planet wheel elastic support structure, belong to the power-transmitting unit technical field.
Background technique
In planetary mechanism, load balancing mechanism is the difficult point in the design, and effect of load balancing mechanism has directly determined the product reliability of operation; Usually in a planetary mechanism, adopt sun gear or planet carrier to float, because floating, sun gear or planet carrier structurally more easily handle, and planet wheel is unsteady normally more unmanageable, as shown in Figure 1 be a kind of traditional planet wheel rigidity supporting structure, it is mainly by planet carrier 11, planet wheel 12, bearing 13, spacer ring 14, planet pin 15 compositions such as grade; Above-mentioned traditional planet wheel rigidity supporting structure has following shortcoming:
1, planet carrier easily produces and reverses and bending deflection owing to be subjected to the effect of moment of torsion and moment of flexure simultaneously, influences the accuracy of mesh of planet wheel;
2, planet wheel uses number that bigger restriction is arranged, general maximum 4;
3, gear-box boundary dimension is big, and weight is big.
The model utility content
The purpose of this utility model is to overcome the deficiency that prior art exists, and provide a kind of can solve planet wheel effectively all carry a difficult problem, and the elastic support structure of the good planet wheel of effect of load balancing mechanism.
The purpose of this utility model is finished by following technical solution, it is mainly by carriage, planet wheel, bearing, spacer ring, the planet pin is formed, on planet axis, lock with round nut by a side end of bearing by bearings for described planet wheel, and round nut is equipped with one outward adjusts spacer ring and a check ring, described planet axis is nested with interference fit joint on the planet pin, and the carriage that is positioned at planet axis one side also is nested with interference fit joint on the planet pin.
Described bearing be two that be arranged side by side, not with the tapered roller bearing of outer ring, an end of described planet pin has been equipped with the round nut of axially locating effect; In that being installed between described carriage and the planet axis, a planet wheel under overload situations, the planet pin is had the spacing conical ring of overload protective function.
The utlity model has following advantage:
1, is conducive to well all carry between planetary pinion;
2, the planet wheel number can be increased, 10 can be reached in the one-level planetary mechanism;
3, planetary gear is good to all carrying;
4, can reduce planet wheel and planet carrier machining accuracy;
5, good buffer function improves the gear-box reliability;
6, can reduce gear-box boundary dimension and weight;
Description of drawings
Fig. 1 is existing traditional planet wheel rigidity supporting structure schematic representation.
Fig. 2 is novel planetary wheel elastic support structure schematic representation described in the utility model.
Fig. 3 is elastic axis deformation pattern described in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: shown in Fig. 2,3, the utility model is mainly by carriage, planet wheel, bearing, spacer ring, the planet pin is formed, described planet wheel 27 by bearings on planet axis 22, lock with round nut 25 at least one end of bearing, round nut 25 an outer adjustment spacer ring 24 and the check rings 23 of being equipped with, described planet axis 22 is nested with interference fit joint on planet pin 21, and the carriage 31 that is positioned at planet axis one side also is nested with interference fit joint on planet pin 21.
Bearing described in the utility model be two not with the tapered roller bearing 26 of outer ring, described planet pin 21 ends have been equipped with the round nut 30 of axially locating effect; One planet wheel 27 is installed between described carriage and planet axis 22 the spacing conical ring 29 of overload protective function to planet pin 21 under overload situations.
Embodiment: as Fig. 2: planet wheel 27 is not supported on the planet axis 22 with the tapered roller bearing 26 of outer ring through two; lock with round nut 25 the bearing end; round nut 25 an outer adjustment spacer ring 24 and the check rings 23 of being equipped with; with round nut 25 bearing 26 there is double protection, has improved the product operational reliability greatly.Planet axis 22 and planet pin 21 interference fit joint, planet pin 21 and carriage 31 also interference fit joint.Planet pin 21 ends are equipped with round nut 30 and play the axially locating effect.As shown in Figure 3, when planet wheel 27 when stressed, resiliently deformables take place in planet pin 21, side-play amount is A.Spacing conical ring 29 has overload protective function to planet pin 21 at planet wheel 27 under overload situations.
Because planet wheel 27 and planet carrier 11 have inevitable machining error in course of working, cause the engagement magnitude of misalignment of a plurality of planet wheels when engagement, can not guarantee a plurality of planet wheel synchromeshs effectively.And thereby novel planetary as implied above wheel elastic support structure produces the machining error that side-play amount has effectively remedied planet wheel 27 and planet carrier 11 owing to there being planet pin 21 that resiliently deformable takes place, and reaches and well all carries, and guarantees the synchromesh of a plurality of planet wheels.
Claims (2)
1. the elastic support structure of a planet wheel, it is mainly by carriage, planet wheel, bearing, spacer ring, the planet pin is formed, it is characterized in that described planet wheel (27) by bearings on planet axis (22), one side end of bearing is locked with round nut (25), an outer adjustment spacer ring (24) and the check ring (23) of being equipped with of round nut (25), described planet axis (22) is nested with at planet pin (21) and goes up interference fit joint, and the carriage (31) that is positioned at planet axis one side also is nested with at planet pin (21) goes up interference fit joint.
2. the elastic support structure of planet wheel according to claim 1, it is characterized in that described bearing be two that be arranged side by side, not with the tapered roller bearing (26) of outer ring, an end of described planet pin (21) has been equipped with the round nut (30) of axially locating effect; One planet wheel (27) is installed between described carriage and planet axis (22) the spacing conical ring (29) of overload protective function to planet pin (21) under overload situations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066144 CN203230835U (en) | 2013-02-05 | 2013-02-05 | Planetary gear resilient support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066144 CN203230835U (en) | 2013-02-05 | 2013-02-05 | Planetary gear resilient support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230835U true CN203230835U (en) | 2013-10-09 |
Family
ID=49286962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320066144 Expired - Fee Related CN203230835U (en) | 2013-02-05 | 2013-02-05 | Planetary gear resilient support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230835U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104690A (en) * | 2013-02-05 | 2013-05-15 | 杭州前进齿轮箱集团股份有限公司 | Elastic support structure of planet wheel |
| CN106536995A (en) * | 2014-07-22 | 2017-03-22 | Zf 腓德烈斯哈芬股份公司 | Threaded planetary pin |
| CN109944932A (en) * | 2019-03-20 | 2019-06-28 | 中国航发湖南动力机械研究所 | Axis links system and planet gear transmission system |
-
2013
- 2013-02-05 CN CN 201320066144 patent/CN203230835U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104690A (en) * | 2013-02-05 | 2013-05-15 | 杭州前进齿轮箱集团股份有限公司 | Elastic support structure of planet wheel |
| CN106536995A (en) * | 2014-07-22 | 2017-03-22 | Zf 腓德烈斯哈芬股份公司 | Threaded planetary pin |
| CN109944932A (en) * | 2019-03-20 | 2019-06-28 | 中国航发湖南动力机械研究所 | Axis links system and planet gear transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20131009 Termination date: 20210205 |