CN1991200A - Supporting structure of planetary rotating body - Google Patents
Supporting structure of planetary rotating body Download PDFInfo
- Publication number
- CN1991200A CN1991200A CNA2006101598732A CN200610159873A CN1991200A CN 1991200 A CN1991200 A CN 1991200A CN A2006101598732 A CNA2006101598732 A CN A2006101598732A CN 200610159873 A CN200610159873 A CN 200610159873A CN 1991200 A CN1991200 A CN 1991200A
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- CN
- China
- Prior art keywords
- planetary
- pair
- rotating body
- flange
- planetary rotating
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- 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.)
- Pending
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
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- 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
- F16H57/082—Planet carriers
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- 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
- F16H1/00—Toothed gearings for conveying rotary motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention provided a supporting structure of a planetary rotator capable of dispensing with a flange body in a complicated shape, capable of reducing cost, exhibiting flexibility with respect to a design change, and capable of preventing the occurrence of backlash even if a fastening force of a bolt is slightly deteriorated by a long time use. A pair of first and second flange bodies 66 and 68 connected through a connection body 70 are arranged on axial both sides of a planetary gear (planetary rotator) 56, and torque along the circumferential direction between at least one (first) flange body 66 and the connection body 70 is transmitted by frictional force. The planetary gear 56 is provided with a pair of first and second supporting pins 62 and 64 protruding from axial both sides, and at least one of the pair of the supporting pins 66 and 68 is fixed to the first flange body 66 by a fitting structure having interference.
Description
Technical field
The present invention relates to the supporting construction of a kind of planetary rotating body, for example planetary pinion or planetary roller etc.
Background technique
In the planetary gear system of in the precision positioning of liquid crystal conveying robot or ATC etc., using, be incorporated with by carriage and limit or support the planetary pinion of the position of its circumferencial direction.Described carriage is for compact and raising rigidity, and many parts (pallet body) by cage modle constitute.
Fig. 2 shows patent documentation 1 disclosed planetary gear system PG1.
This planetary gear system PG1 has 2 grades planetary gears P1, P2.Wherein, the planetary gears P2 of back segment has sun gear 2, planetary pinion 4, internal-gear 6,, and rest pin 10 is axially outstanding from planetary pinion 4, and by 14,16 supportings of pair of flanges portion.This pair of flanges portion 14,16 constitutes as the part of pallet body 8 and by the parts of single (same) respectively, forms cage modle.
The shape that this formation makes pallet body 8 extremely complexity and cost is higher easily, and in addition, with respect to the change of reduction speed ratio or transfer capacity, the flexibility of design alteration is also lower.Therefore, the also known widely planetary gear system PG2 that constitutes as shown in Figure 3.This planetary gear system PG2 is by dividing other parts to constitute pair of flanges body 30,32, uses connecting body 34 and bolt 36 with body flange 32 one, and both are integrated with body flange 30,32.
Under the situation of this kind formation, the through hole 33 of bolt 36 and body flange 30 is not because of in a circumferential direction by fully integratedization (owing to have plurality of gaps), the result, the friction (pushing force) of moment of torsion by being produced on the 34A of the end of this connecting body 34 by the fastening force of bolt 36 of the circumferencial direction between body flange 30 and the connecting body 34 is delivered to the 1st body flange 30 sides.
Patent documentation 1: Japanese kokai publication hei 9-303494 communique
But, under the structure situation as shown in Figure 3, because the structure that has adopted the moment of torsion of the circumferencial direction between body flange 30 and the connecting body 34 to be transmitted by friction, can be owing to make the fastening force of bolt 36 loose for a long time, because of moment of torsion more than the load friction etc., the moment of torsion that this friction will be transmitted does not interruptedly keep, and then exists the moment of torsion transmission is carried out in generation by " shearing stress " of bolt 36 problem.When the shearing stress by bolt 36 carried out the moment of torsion transmission, load variations when gyratory directions reverses on the one hand, owing to have the slit between this bolt 36 and through hole 32, had to produce the possibility of rocking on the one hand.
Summary of the invention
The present invention is in order to solve above-mentioned technical problem in the past, a kind of pallet body that does not need complicated shape is provided, low-cost and have a flexibility of relative design alteration, even and owing to for a long time the frictional force of bearing the moment of torsion transmission can not be guaranteed, the supporting construction of the planetary rotating body that also can not shake etc.
The present invention is by adopting following formation, solved above-mentioned technical problem, promptly, the supporting construction of planetary rotating body of the present invention is, the pair of flanges body that configuration connects by connecting body on the axle direction both sides of planetary rotating body, and the moment of torsion of the circumferencial direction between at least one side's body flange and the described connecting body constitutes by the friction transmission, described planetary rotating body has from the side-prominent a pair of rest pin of its axle direction two, and at least one square tube in this a pair of rest pin is crossed the inserted structure with magnitude of interference and described relatively body flange is fixed.
In the present invention, in the supporting construction of the planetary rotating body that the moment of torsion of the circumferencial direction between body flange and described connecting body is made of by transmission friction,, the planet pin is fixed on the body flange by having the inserted structure of magnitude of interference.At this, " inserted structure with magnitude of interference " is, even have for example foozle, also means not generate the slit inserted structure of (still having magnitude of interference) fully.
For this reason, this connecting body and body flange are except the friction of connecting body and body flange contact segment, also by the shearing stress of planet pin can under the state of moment of torsion transmission, connecting, even some decline of the fastening force of bolt also can not can produce and rocks etc. and can still keep fully integratedization.In addition, 2 body flanges because of usually under stable status by integrated, it is loose to be not easy to take place bolt self, can obtain the effect with the friction long term maintenance of connecting body part.
Have again, said among the present invention " by the inserted structure with magnitude of interference produce fixing " in, contain be pressed into, the gimmick of shrink-fit etc.
In addition, said among the present invention " a pair of rest pin " is, owing to give prominence to respectively from the both sides of center row star solid of rotation, as the notion of invention, may not is same, but in reality, for example also can be made of a pin that connects its both sides' planetary rotating body.
The invention effect
Can access the body flange that does not need complicated shape, low-cost and have a flexibility of relative design alteration, even and owing to for a long time the fastening force of bolt is reduced slightly, can not produce the supporting construction of the planetary rotating body that rocks etc. yet.
Description of drawings
Fig. 1 is the whole sectional drawing that expression is suitable for planetary gear system one example of the present invention.
Fig. 2 is a whole sectional drawing of representing planetary gear system one example in the past.
Fig. 3 represents the whole sectional drawing of another example of planetary gear system in the past.
Embodiment
Below, with reference to the accompanying drawings, explain an example of the embodiment of the invention.
In Fig. 1, show the whole section of the planetary gear system of the supporting construction that is suitable for planetary rotating body of the present invention.
This planetary gear system PG3 has coupling shaft 50 on its leading portion.Coupling shaft 50 has through hole 52, can insert the motor shaft of not shown motor on distolateral at one of this through hole 52.But the symbol 54 of Fig. 1 is the clamping plate (friction connecting part) that coupling shaft 50 are connected usefulness with this motor shaft transmission of power ground.On another of the through hole 52 of coupling shaft 50 is distolateral, be pressed into pinion shaft 53, this pinion shaft 53 is the input shaft of simple planetary gears P3 and the gear shaft that forms sun gear 54.Simple planetary gears P3 have this sun gear 54, with these sun gear 54 external planet gear meshed 56, in connect the internal-gear 58 of this planetary pinion 56 of engagement.Internal-gear 58 is integrated with housing 60.
Planetary pinion 56 has from this planetary pinion 56 two side-prominent the 1st, the 2nd rest pins 62,64 axially.Have, be in particular, this 1st, the 2nd rest pin 62,64 is made of a root spare that connects planetary pinion 56.1st, the 2nd rest pin 62,64 is by a pair of the 1st, the 2nd body flange 66,68 supportings on the axle direction both sides that are disposed at planetary pinion 56.1st, the 2nd body flange 66,68 is bearing in respectively on the housing 60 by bearing 71,73.
On the other hand, in this embodiment, the outstanding integratedly connecting body 70 that is formed with on the 2nd body flange 68.On connecting body 70 and the 1st body flange 66, be formed with tapped hole 72 and through hole 74 respectively.Connect these through holes 74 and be screwed in the bolt hole 72 by bolt 76, the 1st body flange 66 and the 2nd body flange 68 are by connecting body 70 and integrated.The through hole 74 of bolt 76 and the 1st body flange 66 is not fully closely to contact.For this reason, in common user mode, the combination of connecting body 70 and the 1st body flange 66 is not the shearing stress by bolt 76, and friction on both mating face S realizes but be created in by the fastening force by this bolt 76.
In this embodiment, the 1st rest pin 62 of the 1st body flange 66 sides of planetary pinion 56 and the 2nd rest pin 64 of the 2nd body flange 68 sides all by as " being pressed into " with magnitude of interference inserted structure, are separately fixed on the 1st body flange 66 and the 2nd body flange 68.In addition, the 2nd body flange 68 is integrated with output shaft 80.
Have, planetary pinion 56 is installed on the large-diameter portion 57 of 62,64 of the 1st, the 2nd rest pins by needle bearing 78 again.Thereby, be fixed on the 1st, the 2nd body flange 66,68 the also revolution very sleekly around large-diameter portion 57 of this planetary pinion 56 although the 1st, the 2nd rest pin 62,64 is pressed into.
Below, the effect of this planetary gear system PG3 is described.
When the revolution by not shown motor shaft makes coupling shaft 50 revolutions, be pressed into pinion shaft 53 revolutions in this coupling shaft 50, be formed at sun gear 54 revolutions of these pinion shaft 53 front ends.In this embodiment, because of internal-gear 58 by with the housing 60 integrated stationary states that maintain, the result because the revolution of sun gear 54, rotation limit, planetary pinion 56 limit is round these sun gear 54 revolution.This revolution composition is delivered to respectively on the 1st, the 2nd body flange 66,68 by the 1st, the 2nd rest pin 62,64, and the 1st, the 2nd body flange 66,68 turns round integratedly.
At this, in the present embodiment, because the 1st, the 2nd rest pin 62,64 is fixed on the 1st, the 2nd body flange 66,68 by the inserted structure with magnitude of interference jointly, 1st, the 2nd body flange 66,68 is except that the friction that is taken place by bolt 76, also by the shearing stress of the 1st, the 2nd rest pin 62,64 by becoming one, even for example decrease, in addition by the friction of bolt 76 generations, even the moment of torsion that transmits increase and decrease or counter-rotating also can not produce the moment of torsion transmission of rocking.
Moreover, can confirm that the speed self of bolt 76 fastening forces reduction is also slower than in the past.Can infer, if when the fastening force of bolt 76 in the past reduces, size according to load, what all can produce is rocked, then this rocks to act on and promotes on the loose direction of bolt 76, but according to present embodiment, under the situation that what reduce at the fastening force of bolt 76, by the effect of the 1st, the 2nd rest pin 62,64, can suppress to rock the cause of generation.
Because 2 body flanges 66,68 are formed by parts independently respectively, shape is more simple, and to various design alterations also correspondence neatly.Have being pressed into of magnitude of interference and do not bring the increase of himself cost basically, thus can be only by very simple and easy and low-cost design change, and the durability that just can make planetary gear system PG3 is than prolongation greatly in the past.
In addition, make in the above-described embodiments the 2nd body flange 66 and connecting body integrated, because of preventing of paying attention to rocking, that the both sides of the 1st, the 2nd rest pin 62,64 are fixing with respect to the 1st, the 2nd body flange 66,68 respectively by the inserted structure with magnitude of interference.But, for example, as this embodiment, under one-sided body flange and the incorporate situation of connecting body script, for for example this incorporate side's body flange, because script rigidity height also can adopt by the embedding that does not have magnitude of interference the structure of combination.Coming the structure in conjunction with this side side by " inserted structure that does not have magnitude of interference " is to make " preventing to rock " and " guaranteeing easy assembling " and depositing on this point and reasonably construct.In addition, in the notion of this so-called " inserted structure that does not have magnitude of interference ", beyond magnitude of interference is negative (slit is arranged) or 0 inserted structure, comprise the notion of magnitude of interference less than the inserted structure of foozle.
In addition, if connecting body also forms with the 2nd body flange split ground, even under the situation of the structure that the both sides by the 1st, the 2nd body flange and connecting body are combined by friction, according to the requirement in the design, viewpoint from " easiness of assembling " or " preventing to rock ", can be the structure that only is pressed into side's side, also can be the structure that is pressed into both sides' side.
The foregoing description is, with respect to being suitable for of the present invention as the planetary supporting of the planetary rotating body of simple planetary gears, but the present invention is not only merely for planetary gears, be positioned at inboard around planetary for the central shaft of for example planetary gear system, the planetary supporting in the so-called swinging inner-connected meshed engagement type planetary gears is also applicable.In addition, beyond gear mechanism, for also applicable the present invention of planetary roller as the planetary rotating body of planetary roller mechanism.
Utilizability on the industry
For possessing the pair of flanges body that has in the planetary rotating body both sides as carriage, and wherein At least one party's body flange and connector are by the planet of the structure of the formation of friction and transmitting torque Device can be equally suitable.
Claims (3)
1, a kind of supporting construction of planetary rotating body, be provided with the pair of flanges body that on the axle direction both sides of planetary rotating body, connects by connecting body, and the moment of torsion of the circumferencial direction between at least one side's body flange and the described connecting body is transmitted by friction, it is characterized in that, described planetary rotating body has from the side-prominent a pair of rest pin of its axle direction two, and at least one square tube in this a pair of rest pin is crossed the inserted structure with magnitude of interference and fixed by described relatively body flange.
2, the supporting construction of planetary rotating body as claimed in claim 1 is characterized in that, described planetary rotating body is fixed on the both sides of described pair of flanges body with the inserted structure with magnitude of interference by described a pair of rest pin.
3, the supporting construction of planetary rotating body as claimed in claim 1 is characterized in that, one-sided rest pin passes through the inserted structure of no magnitude of interference with respect to pairing body flange combination in the described a pair of rest pin of described planetary rotating body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP318944/2005 | 2005-11-02 | ||
| JP2005318944A JP2007127165A (en) | 2005-11-02 | 2005-11-02 | Supporting structure of planetary rotator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1991200A true CN1991200A (en) | 2007-07-04 |
Family
ID=38037919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101598732A Pending CN1991200A (en) | 2005-11-02 | 2006-11-02 | Supporting structure of planetary rotating body |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2007127165A (en) |
| KR (1) | KR20070047702A (en) |
| CN (1) | CN1991200A (en) |
| DE (1) | DE102006051784A1 (en) |
| TW (1) | TW200724805A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884884A (en) * | 2015-12-11 | 2017-06-23 | 维特恩斯坦欧洲股份公司 | For connecting two apparatus and method of the machine part of rotation |
| CN109416117A (en) * | 2016-06-07 | 2019-03-01 | 赛峰传动系统公司 | The method for assembling planet carrier |
| CN109578452A (en) * | 2019-01-14 | 2019-04-05 | 哈尔滨广瀚动力传动有限公司 | A kind of adjustable super torsion protection structure of high-speed overload shafting |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4227157B2 (en) * | 2006-08-02 | 2009-02-18 | 住友重機械工業株式会社 | Simple planetary gear device manufacturing method and simple planetary gear device series |
| CN107929906B (en) * | 2017-12-22 | 2020-06-19 | 刘敬妍 | Fixing device of medical oxygen mask |
-
2005
- 2005-11-02 JP JP2005318944A patent/JP2007127165A/en active Pending
-
2006
- 2006-10-18 TW TW095138424A patent/TW200724805A/en not_active IP Right Cessation
- 2006-10-31 KR KR1020060106194A patent/KR20070047702A/en not_active Application Discontinuation
- 2006-11-02 DE DE102006051784A patent/DE102006051784A1/en not_active Withdrawn
- 2006-11-02 CN CNA2006101598732A patent/CN1991200A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884884A (en) * | 2015-12-11 | 2017-06-23 | 维特恩斯坦欧洲股份公司 | For connecting two apparatus and method of the machine part of rotation |
| CN109416117A (en) * | 2016-06-07 | 2019-03-01 | 赛峰传动系统公司 | The method for assembling planet carrier |
| CN109416117B (en) * | 2016-06-07 | 2021-08-17 | 赛峰传动系统公司 | Method for assembling planet carrier |
| CN109578452A (en) * | 2019-01-14 | 2019-04-05 | 哈尔滨广瀚动力传动有限公司 | A kind of adjustable super torsion protection structure of high-speed overload shafting |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070047702A (en) | 2007-05-07 |
| JP2007127165A (en) | 2007-05-24 |
| TW200724805A (en) | 2007-07-01 |
| TWI313330B (en) | 2009-08-11 |
| DE102006051784A1 (en) | 2007-05-31 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |