CN103148167A - Planetary gear device and method of manufacturing the same - Google Patents
Planetary gear device and method of manufacturing the same Download PDFInfo
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- CN103148167A CN103148167A CN2012105242046A CN201210524204A CN103148167A CN 103148167 A CN103148167 A CN 103148167A CN 2012105242046 A CN2012105242046 A CN 2012105242046A CN 201210524204 A CN201210524204 A CN 201210524204A CN 103148167 A CN103148167 A CN 103148167A
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- flange body
- pin
- shaped parts
- pair
- planetary gear
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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
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
Abstract
The invention provides a planetary gear device and a method of manufacturing the same. The planetary gear device is easy to manufacture and enables the amount of pin-shaped parts to be guaranteed. According to the planetary gear device (G1), a first flange body (32) and a second flange body (34) are arranged on two sides along an axial direction of outer gears, i.e. planetary gears (22, 24); a plurality of inner pins (28) serving as the pin-shaped parts and wheel frame pins (30) are arranged between the first flange body (32) and a second flange body (34), wherein the inner pins (28) are formed into a whole body by protruding from the first flange body (32), the wheel frame pins (30) are formed into a whole body by protruding from the second flange body (34); and through staggering of the inner pins (28) of the flange bodies (32, 34) and phases of the wheel frame pins (30) along a circumferential direction, the first flange body (32) and the second flange body (34) are connected.
Description
Technical field
The present invention relates to the manufacture method of a kind of planetary gear system and planetary gear system.
Background technique
Patent documentation 1 discloses following oscillating internal engagement type planetary gear device, its axial both sides at the external gear (planetary pinion) that swings dispose a pair of the 1st flange body, the 2nd flange body, and dispose a plurality of domestic (pin-shaped parts) between this a pair of the 1st flange body, the 2nd flange body.Each is domestic links up the 1st flange body, the 2nd flange body, and, help the power (rotation composition) of external gear to transmit.
In this patent documentation 1, a flange body in a plurality of domestic and a pair of flange bodies i.e. the 1st flange body becomes one, and forms from the 1st flange body is outstanding with cantilever position.
By a plurality of domestic and the 1st flange bodies are formed as one, can constitute the face that the 1st flange body and domestic border are not exposed to a side opposite with external gear of the 1st flange body, therefore can improve the degrees of freedom of the screw that is formed for linking the 1st flange body and object machinery.
In addition, in patent documentation 1, link the pin-shaped parts of the 1st flange body, the 2nd flange body by the domestic formation of the transmission of power that can help external gear, but the difference according to mechanical type, as the pin-shaped parts that are disposed between a pair of flange body, sometimes by the pin-shaped parts of the transmission of power that can help external gear with only help the pin-shaped parts (differentiation function) of the link of a pair of flange body to consist of; Perhaps a pin-shaped parts by the link that only helps a pair of flange body consists of.
Patent documentation 1: TOHKEMY 2006-263878 communique (Fig. 2)
Yet, form this planetary gear system of pin-shaped parts from flange body, when increasing the radical of pin-shaped parts, the interval of each pin-shaped parts circumferencial direction is each other narrowed down, and be difficult to carry out the processing of these pin-shaped parts, sometimes because can't entering, instrument cause processing itself to carry out.Therefore the increase of pin-shaped parts radical is restricted.
Summary of the invention
Invention is completed in order to address this is that, and its problem is to provide a kind of and makes easily and can guarantee the planetary gear system of pin-shaped parts of requirement or the manufacture method of this planetary gear system.
solve above-mentioned problem by following structure, namely the invention provides a kind of planetary gear system, it disposes a pair of flange body in planetary axial both sides, dispose a plurality of pin-shaped parts between this a pair of flange body, wherein, the flange body of a part in described a plurality of pin-shaped parts from described a pair of flange body be outstanding formation integratedly, and the another part in described a plurality of pin-shaped parts is from another flange body outstanding formation integratedly of described a pair of flange body, the circumferencial direction phase place of the pin-shaped parts by each flange body that staggers links described a pair of flange body.
In the present invention, when forming flange body and pin-shaped parts, it is not only outstanding from a square flange body making pin-shaped parts, but outstanding from both sides' flange body.Each flange body is linked by the state of the circumferencial direction phase place of integrated pin-shaped parts to stagger.
Its result, due to the quantity that can reduce with the integrally formed pin-shaped parts of each flange body, so that the circumferencial direction interval (leeway) of each pin-shaped parts broadens, even increase the quantity of pin-shaped parts, also can process the pin-shaped parts of each root very like a cork.
In addition, the present invention also provides a kind of manufacture method of planetary gear system, wherein said planetary gear system disposes a pair of flange body in planetary axial both sides, and dispose a plurality of pin-shaped parts between this a pair of flange body, the manufacture method of described planetary gear system is characterised in that, comprise: form the operation of a pair of flange body mother metal, described flange body mother metal is the mother metal that is used to form described flange body and pin-shaped parts, and has formed pin-shaped section from discoideus flange part; Process to obtain to carry out the operation of the integrated flange body of pin-shaped parts of transmission of power with described planetary pinion by the described pin-shaped section to a flange body mother metal in this a pair of flange body mother metal; Process to obtain to form the operation of another flange body of the pin-shaped parts of the link that only helps described a pair of flange body by the described pin-shaped section to another flange body mother metal in this a pair of flange body mother metal; The operation that links this a pair of flange body of having processed by the phase place of each pin-shaped parts that stagger.
The invention effect
According to the present invention, can obtain to make easily and can guarantee the planetary gear system of the pin-shaped parts of requirement.
Description of drawings
Fig. 1 means the sectional view of the structure of the planetary gear system that an example of embodiments of the present invention is related.
Fig. 2 be from the above line star gear device to the side view of looking the II direction and observing.
Fig. 3 represents that schematically the edge of above line star gear device is to the sectional view in the cross section of looking the III-III line.
Fig. 4 is the plan view of the flange body mother metal of above line star gear device.
Fig. 5 is the decomposition section for the assembly process of explanation above line star gear device.
In figure,
The G1 planetary gear system
12 input shafts
14,16 eccentric bodies
18,20 roller bearings
22,24 external gears
26 internal gears
28 is domestic
30 wheel carrier pins
31 housings
32,34 the 1st flange bodies, the 2nd flange body
32T, 34T screw
Embodiment
Below with reference to the accompanying drawings an example of embodiments of the present invention is elaborated.
Fig. 1 means the sectional view of the structure of the planetary gear system that an example of embodiments of the present invention is related, Fig. 2 be from the above line star gear device to the side view of looking the II direction and observing, Fig. 3 represents that schematically the edge of above line star gear device is to the sectional view in the cross section of looking the III-III line.
This planetary gear system G1 is the planetary gear system that is known as the eccentric swing engagement type, is used for driving the joint of industrial robot.
Planetary gear system G1 possesses: the internal gear 26 that input shaft 12,2 eccentric bodies 14 and eccentric bodies 16 forming with this input shaft 12,2 external gears 22, external gear 24 and this external gear 22 that are assembled in the periphery of this eccentric body 14, eccentric body 16 via roller bearing 18 and roller bearing 20, external gear 24 mesh in while swinging.
Below be elaborated.
Internal gear 26 is made of the internal gear body 26A that becomes one with housing 31 and the columned export trade 26B that is rotatably freely supported on this internal gear body 26A and consists of " internal tooth " of internal gear.The interior number of teeth of internal gear 26 (radical of export trade 26B) is than the outer number of teeth of external gear 22, external gear 24 more slightly (being only 1 in this example).
The axial both sides of external gear 22, external gear 24 dispose a pair of the 1st flange body 32, the 2nd flange body 34.The 1st flange body 32, the 2nd flange body 34 are supported on housing 31 via pair of horns contact ball bearing 36, the angular contact ball bearing 38 of back-to-back assembling.Angular contact ball bearing 36, angular contact ball bearing 38 have respectively rolling element 36A, rolling element 38A and outer ring 36B, outer ring 38B, but there is no inner ring (the 1st flange body 32, the 2nd flange body 34 have rolling surface 36C, rolling surface 38C, play a role as inner ring).Symbol 37 is pad, changes its thickness when assembling the 1st flange body 32, the 2nd flange body 34, thereby can adjust the pressurization to this angular contact ball bearing 36, angular contact ball bearing 38.
Be formed with base part 32S, base part 34S on the 1st flange body 32, the 2nd flange body 34, support freely described input shaft 12 via a pair of ball bearing 40, ball bearing 42 rotations that are disposed on this base part 32S, base part 34S.
Be formed with 6 domestic (parts a plurality of pin-shaped parts) 28 from one of them the 1st flange body 32 of the 1st flange body 32, the 2nd flange body 34 so that the intervals of 60 degree are outstanding integratedly.Domestic 28 periphery disposes to slide and promotes body 44.Slide to promote the size of the outside diameter d 1 of body 44 to be made as than the little size of 2 times (d1=D1-2 Δ e1) that is equivalent to offset Δ e1 of inner diameter D 1 that is formed at external gear 22,24 inner pinhole 22A, inner pinhole 24A.That is, domestic 28(is via slide promoting body 44) all the time with a part of butt of inner pinhole 22A, inner pinhole 24A.Thus, can make domestic 28 with the rotation composition of external gear 22, external gear 24 synchronously around the axle center of input shaft 12 O1 revolution, and make the 1st flange body 32, the 2nd flange body 34 around the rotation of the axle center of input shaft 12.That is, related domestic 28 formations " the pin-shaped parts that help the transmission of power between the 1st flange body 32, the 2nd flange body 34 and external gear 22, external gear 24 " of this mode of execution.In addition, do not have the slip of domestic 28 peripheries to promote body 44 can yet.At this moment, domestic external diameter own becomes d1 from d3.
On the other hand, another the 2nd flange body 34 from the 1st flange body 32, the 2nd flange body 34 is with the intervals of 60 degree outstanding 6 wheel carrier pins (another part of a plurality of pin-shaped parts) 30 that are formed with integratedly.Even add that on the outside diameter d 2 of wheel carrier pin 30 the offset Δ e1 of 2 times is also still less than the inner diameter D 2 of the wheel carrier pin-and-hole 22B that is formed at external gear 22, external gear 24, wheel carrier pin-and-hole 24B.I.e. (d2+2 Δ e1)＜D2.Therefore, even external gear 22,24 swings, wheel carrier pin 30 can not contact with this external gear 22, external gear 24 yet.That is, the related wheel carrier pin 30 of this mode of execution consists of " the pin-shaped parts that only help the link between the 1st flange body 32, the 2nd flange body 34 ".
Carry out reference in conjunction with Fig. 3, outstanding domestic 28 the 1st flange body 32 and outstanding the 2nd flange body 34 that is formed with wheel carrier pin 30 of being formed with, by will be separately domestic 28 with circumferencial direction phase shifting 30 degree of wheel carrier pin 30 (with domestic 28 with wheel carrier pin 30 just in time with the mode of the interval alternate configurations of the 30 degree circumferencial direction phase place that staggers) link.
Be described more specifically this connecting arrangement, help transmission of power domestic 28 with its front end be embedded in the recess 34D that is formed on the 2nd flange body 34 and between this axial end 28A of domestic 28 and the 2nd flange body 34 (and between bottom of recess 34D) link with the state across axial clearance δ 1.That is, domestic 28 only are embedded in recess 34D, and are not fixed by bolt.But also this gap delta 1 not, also can be fixed by bolt etc.And, also can configure liner between the bottom of domestic 28 axial end 28A and recess 34D.
On the other hand, about the wheel carrier pin 30 that only helps to link, the axial end 30A of this wheel carrier pin 30 and the 1st flange body 32 link via wheel carrier bolt 46 with the state (perhaps to be folded with the state of liner) of butt in the axial direction.Be formed with on the 1st flange body 32 for the penetration hole 32A and the spot-facing 32B of section that insert logical wheel carrier bolt 46, at the axial end 30A of wheel carrier pin 30, be formed be used to the screw 30D that is screwed into wheel carrier bolt 46.
In this mode of execution, the side 34E both sides of the side 32E of the 1st flange body 32, the 2nd flange body 34 are uniformly-spaced to be formed with a plurality of (this example is respectively 12) screw 32T, screw 34T(for object of connection machinery (for example arm of next stage or prime) with reference to figure 2 in recess 32K, the recess 34K of the annular that spreads all over complete cycle).In addition, for simplicity, in Fig. 1, the cross section of 1 screw 32T, screw 34T only is shown respectively with domestic 28 and wheel carrier pin 30 with overlapping, but by the screw 32T of Fig. 2 form the position also as can be known this screw 32T, screw 34T actual form the position and do not overlap (circumferencial direction form position off normal) with domestic 28 or the extrusion position of wheel carrier pin 30.
In addition, the 1st flange body 32, the 2nd flange body 34 are respectively by the 1st flange body mother metal 50, the 2nd flange body mother metal 52(Fig. 4 to same shape described later) process and form.This is follow-uply discussed again. Symbol 33,35,39,41 is oil sealing.
The below describes the effect of this planetary gear system G1.
The rotation composition of external gear 22, external gear 24 is via the domestic 28(of the inner pinhole 22A that runs through this external gear 22, external gear 24, inner pinhole 24A and the promotion body 44 that slides), be delivered on the 1st flange body 32, the 2nd flange body 34, the 1st flange body 32, the 2nd flange body 34 are with the speed rotation identical with the rotation composition of external gear 22, external gear 24.Its result, can realize 1/ deceleration of ( external gear 22,24 the number of teeth).The 1st flange body 32, the 2nd flange body 34 are owing to linking securely via wheel carrier pin 30, and therefore the 1st flange body 32, the 2nd flange body 34 rotate integratedly as a huge output solid of rotation.
In this mode of execution, because the 1st flange body 32, the 2nd flange body 34 both sides are formed with screw 32T, screw 34T, so can both the object of connection parts in any side.At this, the object component side of the 1st flange body 32 (side 32E) only has minority (in this example being 6) wheel carrier bolt 46 to expose.Therefore, can keep than the highland formation degrees of freedom of the screw 32T of the 1st flange body 32.In addition, due to the object component side (side 34E) of the 2nd flange body 34 without any the obstacle when forming screw 34T, so can form screw in position fully freely.Therefore, the formation degrees of freedom of the screw 34T of the 2nd flange body 34 (than the 1st flange body 32 sides) is higher.
So-called screw 32T, screw 34T form that degrees of freedom is higher is equal to the meaning higher with the installation degrees of freedom of object parts.This advantage with can bring out the best in each other in the advantage of the either side mounting object parts of the 1st flange body 32, the 2nd flange body 34, when using this planetary gear system G1 in the articulation structure of the industrial robot of paying attention to " can rotate " on target direction on a large scale, can more effective playing a role.
At this, because the effect of this mode of execution and the manufacture method of planetary gear system G1 have close ties, so, with reference to figure 4, Fig. 5, the manufacture method of this planetary gear system of part G1 is explained.
In this planetary gear system G1, the 1st flange body 32, the 2nd flange body 34 are made by common a pair of the 1st flange body mother metal 50, the 2nd flange body mother metal 52.For convenience's sake, although marked different symbols, the 1st flange body mother metal 50 and the 2nd flange body mother metal 52 have identical shaped, positive so-called " common parts ".
The 1st flange body mother metal 50, the 2nd flange body mother metal 52 are should become discoideus flange part 50A, the flange part 52A of the 1st flange body 32, the 2nd flange body 34 and should become domestic 28 or 6 pin-shaped 50B of wheel carrier pin 30, pin-shaped the mother metal that 52B forms as one.In addition, this pin-shaped 50B, pin-shaped 52B form the outside diameter d 2 of wheel carrier pin 30.Namely, under the state of the 1st flange body mother metal 50, the 2nd flange body mother metal 52, do not distinguish domestic 28 and wheel carrier pin 30 of the 1st flange body 32, the 2nd flange body 34, in addition, the 1st flange body mother metal 50, the 2nd flange body mother metal 52 can be formed by foundry goods, also can form by forging.
The 1st flange body 32 is processed by end face 50B1 and the side 50B2 to pin-shaped 50B of the 1st flange body mother metal 50, length (cardinal extremity can be got arbitrary place) and external diameter that thus will this pin-shaped 50B be processed into respectively specified size L1, d3, and are finish-machined to domestic 28 of the 1st flange body 32.
In this mode of execution, due to the inner diameter D 1 with the hollow portion 12A of input shaft 12 obtain larger, its result, can not with domestic 28 or the diameter of wheel carrier pin 30 obtain too large.Therefore, a plurality of by forming (counting 12) this domestic 28 or wheel carrier pin 30 guarantee its desirable strength.Therefore, although domestic processing in the past (the side processing of pin-shaped section) is difficulty especially, but in this mode of execution, owing to only being formed with 6 pin-shaped 50B on the 1st flange body mother metal 50, so the interval of pin-shaped 50B of each root is wider, can becomes this pin-shaped 50B of domestic 28 to need very like a cork and process.In addition, at this moment, each stepped part such as the rolling surface 36C of described angular contact ball bearing 36 or the base part 32S of ball bearing 40, the penetration hole 32A or the spot-facing 32B of section and the recess 32K etc. that be used for to insert logical wheel carrier bolt 46 are processed in the lump.
Be used for the screw 32T of object mechanical link in the 1st flange body 32 can be formed in this stage (namely before linking with the 2nd flange body 34), also can form after linking with the 2nd flange body 34.In either case, on the side 32E of the 1st flange body 32, enough spaces are arranged, so the formation degrees of freedom of screw 32T is very high.Therefore, for example can also beat in advance a plurality of screws (or pitch circle multiple screw different with the diameter of thread) 32T, in order to various object machineries freely are installed.
Can produce thus domestic 28 integrated the 1st flange bodies 32 with (can with external gear 22,24 transmission of power).
On the other hand, the 2nd flange body mother metal 52 is processed by the end face 52B1 to pin-shaped 52B of the 2nd flange body mother metal 52, thereby length (cardinal extremity can be got arbitrary place) that only will this pin-shaped 52B is processed into preliminary dimension L2, and is finish-machined to wheel carrier pin 30.That is, because wheel carrier pin 30 does not contact with wheel carrier pin-and-hole 22B, the wheel carrier pin-and-hole 24B of external gear 22, external gear 24, so need not specially process the side 52B2 of pin-shaped 52B of the 2nd flange body mother metal 52.
In addition, at this moment, with together processing such as the various stepped part such as the rolling surface 38C of described angular contact ball bearing 38, the base part 34S of ball bearing 42, the screw 30D that inserts domestic 28 recess 34D or wheel carrier bolt 46 and recess 34K.
The same with the screw 32T of the 1st flange body 32, be used for the screw 34T of object mechanical link in the 2nd flange body 34 can be pre-formed in this stage, also can form after linking with the 1st flange body 32.The side 34E(of the 2nd flange body 34 is due to the obstacle when forming screw) on, the formation degrees of freedom of screw 34T is higher than the formation degrees of freedom of the screw 32T of the 1st flange body 32.
Thus, can obtain to form the 2nd flange body 34 of (only helping the link of the 1st flange body 32, the 2nd flange body 34) wheel carrier pin 30.
A pair of the 1st flange body 32 that processes, the assembling of the 2nd flange body 34 are as follows:
With reference to Fig. 5, at first will be by input shaft 12, roller bearing 18, roller bearing 20, the assembly that ball bearing 40, ball bearing 42 and external gear 22, external gear 24 consist of is assembled on housing 31.Afterwards, will (with rolling element 36A, rolling element 38A) angular contact ball bearing 36, outer ring 36B, the outer ring 38B of angular contact ball bearing 38 be pressed in housing 31.Thus, external gear 22, external gear 24 gear assembly that is engaged in internal gear 26 swingably is assemblied in housing 31.
Afterwards, assemble respectively the 1st flange body 32 and the 2nd flange body 34 from (from the left and right sides of the external gear 22 of Fig. 5, external gear 24) the side of external gear 22, external gear 24.At this moment, the phase place (circumferential locations) of the circumferencial direction by stagger separately domestic 28 or wheel carrier pin 30, the recess 34D that domestic 28 front end of the 1st flange body 32 is embedded into the 2nd flange body 34, with omit diagram in wheel carrier bolt 46(Fig. 5, with reference to figure 1) be screwed in the screw 30D of wheel carrier pin 30.The pressurization of diagonal angle contact ball bearing 36, angular contact ball bearing 38 is adjusted by the thickness that changes pad 37.Afterwards, oil sealing 33, oil sealing 35 are installed.Thus, can with domestic 28 with wheel carrier pin 30 uniformly-spaced the state of alternative arrangement link the 1st flange body 32, the 2nd flange body 34.
So, in present embodiment, due to can be with common flange body mother metal 50(=52) as base-material make the 1st flange body 32, the 2nd flange body 34 both, so with respect to being made respectively respectively the method for the 1st flange body 32, the 2nd flange body 34 by different mother metals, can be with low cost fabrication more.Changing an angle and also can say, is to use as the advantage on making with " pin-shaped parts are outstanding from the 1st flange body 32, the 2nd flange body 34 both sides " of the present invention this structure.
In addition, in above-mentioned mode of execution, owing to putting as the interior roller 44 that slide to promote body, therefore set the outside diameter d 3 of the outside diameter d 2 of outside diameter d 1＞wheel carrier pin 30 of interior roller 44＞domestic 28 on domestic 28.Therefore, be processed into the domestic 28 of outside diameter d 3 with external diameter (external diameter of=wheel carrier pin 30) d2 of pin-shaped 50B of cutting flange body mother metal 50, and put interior roller 44 and guarantee thus gap 2 Δ e1 between the inner diameter D 1 of the outside diameter d 1 of roller 44 in this and inner pinhole 22A, inner pinhole 24A.But the present invention is not limited only to this, also can process respectively pin-shaped of common flange body mother metal and obtain wheel carrier pin, domestic external diameter.Namely, for example pin-shaped diameter of flange body mother metal can be taken as the outside diameter d 1 greater than described interior roller, pin-shaped side of two flange body mother metals of cutting and wherein a side be processed as the wheel carrier pin of outside diameter d 2, be outside diameter d 1 if the opposing party is processed as outside diameter d 3(without interior roller) domestic.
In addition, in above-mentioned mode of execution, although adopted the so-called centre-crank shaft formula eccentric oscillating-type planetary gear device that only has to have the bent axle (being in this embodiment input shaft) of eccentric body in position, internal gear axle center, planetary gear system involved in the present invention is not limited to the planetary gear system of this structure.
For example, also can adopt the so-called distribution type eccentric oscillating-type planetary gear device of following formation, namely possess a plurality of bent axles with eccentric body in the position from the skew of the shaft core position of internal gear, and take out bent axle itself around the revolution in the axle center of internal gear from a pair of flange body of the axial both sides that are disposed at external gear.In this case, the present invention also can be adapted to link the wheel carrier pin of described a pair of flange body.That is, for example, when 6 wheel carrier pins of configuration, can be made as the structure that respectively is extruded with respectively 3 wheel carrier pins from a pair of flange body.
In addition, planetary gear system involved in the present invention may not be only limited to eccentric oscillating-type planetary gear device.For example, even the planetary gear system of simple planetary mechanism, when the planetary axial both sides a pair of flange body of configuration and between this a pair of flange body a plurality of rotations of configuration planet pin of planetary gear bearing (pin-shaped parts) or when linking the structure of wheel carrier pin (pin-shaped parts) of a pair of flange body freely, also can be by forming the planet pin or the wheel carrier pin comes fully similarly to be suitable for the present invention from a pair of flange body both sides are outstanding.
And, in above-mentioned mode of execution, illustrate from the outstanding formation of the 1st flange body domestic as pin-shaped parts, and from the structure of the outstanding formation of the 2nd flange body wheel carrier pin as pin-shaped parts, but in the present invention, for example also can adopt from the flange body both sides only outstanding formation " the pin-shaped parts (the mode of execution of front domestic) that help the transmission of power between flange body and planetary pinion " be used as the structure of pin-shaped parts.When all pin-shaped parts consist of by the pin-shaped parts that help transmission of power, only giving prominence to the structure of pin-shaped parts from a square flange body in the past, need with a plurality of pin-shaped parts of narrower arranged spaced, also need fine finishing is carried out in the side of all pin-shaped parts, thereby processing difficulties.But in the present invention, owing to the pin-shaped number of components of each flange body can being reduced by half, so can process like a cork.In addition, when all pin-shaped parts consist of by the pin-shaped parts that help transferring power, by linking two flange bodies with bolt from the 1st flange body or outstanding domestic and the 2nd flange body or the 1st flange body subject side of the 2nd flange body.Thus, pin-shaped parts can be made and have transmission of power and the pin-shaped parts that link two functions and can (with the axial central authorities of planetary gear system as symmetry plane) and axially form symmetrically the 1st flange body or the 2nd flange body.Its result is not only mother metal, the 1st final flange body, the 2nd flange body can also be formed " identical shaped parts ".
In addition, in above-mentioned mode of execution, make the 1st flange body, the 2nd flange body by common flange body mother metal, but in the present invention, the mother metal of two flange bodies may not one be decided to be shared.That is, the shape of flange body mother metal or material from the beginning difference also can.For example, when making help transmission of power domestic outstanding from the 1st flange body, and, make when helping the wheel carrier pin that links outstanding from the 2nd flange body, can make the 1st flange body mother metal by forgings, with the mother metal of foundry goods manufacturing the 2nd flange body.Thus, predetermined quality can either be kept by design, cost degradation more can be realized again.Also need not necessarily identically from the quantity of the outstanding pin-shaped parts of two flange bodies, shape or size also can be different.The formation position also need not one and is decided to be uniformly-spaced.
The application advocates the preference based on No. the 2011-268278th, the Japanese patent application of on December 7th, 2011 application.All the elements of its application are applied in this specification by reference.
Claims (11)
1. a planetary gear system, dispose a pair of flange body in planetary axial both sides, and dispose a plurality of pin-shaped parts between this a pair of flange body, it is characterized in that,
The flange body of the pin-shaped parts of a part in described a plurality of pin-shaped parts from described a pair of flange body be outstanding formation integratedly, and, the pin-shaped parts of another part another flange body from described a pair of flange body in described a plurality of pin-shaped parts is outstanding formation integratedly
Link described a pair of flange body in the mode with the phase shifting of the circumferencial direction of the pin-shaped parts of each flange body.
2. planetary gear system as claimed in claim 1, is characterized in that,
Be the pin-shaped parts that help the transmission of power between this flange body and described planetary pinion from the outstanding pin-shaped parts that form of a described flange body,
Be only to help the pin-shaped parts of the link between described a pair of flange body from the outstanding pin-shaped parts that form of described another flange body.
3. planetary gear system as claimed in claim 2, is characterized in that,
The described pin-shaped parts that help transmission of power link across axial clearance between the axial end of these pin-shaped parts and described another flange body,
The described pin-shaped parts that link of only helping link with the state that a described flange body contacts in the axial direction with the axial end of these pin-shaped parts.
4. planetary gear system as claimed in claim 2 or claim 3, is characterized in that,
The described pin-shaped parts that help transmission of power link across axial clearance between the axial end of these pin-shaped parts and described another flange body,
The described pin-shaped parts that only help to link link by bolt and a described flange body.
5. planetary gear system as described in claim 3 or 4, is characterized in that,
The described front end of the pin-shaped parts of transmission of power that helps is embedded into the recess that is formed on described another flange body, and between the bottom surface of the front end of these pin-shaped parts and this recess across described gap.
6. planetary gear system as described in any one in claim 1～5, is characterized in that,
Described a pair of flange body is made of the mother metal of same shape.
7. planetary gear system as claimed in claim 1, is characterized in that,
Described a plurality of pin-shaped parts are the pin-shaped parts of the transmission of power between any flange body that helps in described planetary pinion and a pair of flange body.
8. planetary gear system as claimed in claim 7, is characterized in that,
Described a pair of flange body is made of the parts of same shape.
9. planetary gear system as described in any one in claim 1～5, is characterized in that,
Be formed with the screw for object of connection machinery on both of described a pair of flange body.
10. the manufacture method of a planetary gear system, wherein said planetary gear system disposes a pair of flange body in planetary axial both sides, and disposes a plurality of pin-shaped parts between this a pair of flange body,
The manufacture method of described planetary gear system is characterised in that, comprising:
Form the operation of a pair of flange body mother metal, described flange body mother metal is the mother metal that is used to form described flange body and pin-shaped parts, and has formed pin-shaped section from discoideus flange part;
Process to obtain to carry out the operation of the integrated flange body of pin-shaped parts of transmission of power with described planetary pinion by the described pin-shaped section to a flange body mother metal in this a pair of flange body mother metal;
Process to obtain to form the operation of another flange body of the pin-shaped parts of the link that only helps described a pair of flange body by the described pin-shaped section to another flange body mother metal in this a pair of flange body mother metal;
The operation that links this a pair of flange body of having processed by the phase place of each pin-shaped parts that stagger.
11. the manufacture method of planetary gear system as claimed in claim 10 is characterized in that,
In the operation that obtains a described flange body, to described pin-shaped length and side that processes this pin-shaped section of a described flange body mother metal,
In the operation that obtains described another flange body, to described pin-shaped length of only processing this pin-shaped section of described another flange body mother metal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-268278 | 2011-12-07 | ||
| JP2011268278A JP5844628B2 (en) | 2011-12-07 | 2011-12-07 | Planetary gear device and method of manufacturing planetary gear device |
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| CN103148167A true CN103148167A (en) | 2013-06-12 |
| CN103148167B CN103148167B (en) | 2015-12-23 |
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| CN201210524204.6A Active CN103148167B (en) | 2011-12-07 | 2012-12-07 | The manufacture method of planetary gear system and planetary gear system |
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| JP (1) | JP5844628B2 (en) |
| KR (1) | KR101455247B1 (en) |
| CN (1) | CN103148167B (en) |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838133A (en) * | 2015-10-02 | 2017-06-13 | 住友重机械工业株式会社 | The lubricant maintenance method of epicyclic gearing and epicyclic gearing |
| CN107606066A (en) * | 2016-07-12 | 2018-01-19 | 纳博特斯克有限公司 | Geared system |
| CN108571567A (en) * | 2017-03-10 | 2018-09-25 | 住友重机械工业株式会社 | Epicyclic gearing |
| TWI661141B (en) * | 2014-11-19 | 2019-06-01 | 日商納博特斯克股份有限公司 | Gear device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6624938B2 (en) * | 2016-01-13 | 2019-12-25 | ナブテスコ株式会社 | Gear device and output gear plate |
| CN212985943U (en) | 2020-04-20 | 2021-04-16 | 宁波瀚晟传动技术有限公司 | Transmission mechanism |
| KR20220093545A (en) | 2020-12-28 | 2022-07-05 | 주식회사 나라코퍼레이션 | Planetary gear box with structure suitable for high speed rotation |
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| JP2002181139A (en) * | 2000-12-11 | 2002-06-26 | Sumitomo Heavy Ind Ltd | Structure of output flange of speed reduction gear |
| CN1737410A (en) * | 2004-08-20 | 2006-02-22 | 住友重机械工业株式会社 | Pin structure of planetary rotary member of planetary reduction mechanism, and method for manufacturing pin |
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| TWI661141B (en) * | 2014-11-19 | 2019-06-01 | 日商納博特斯克股份有限公司 | Gear device |
| CN106838133A (en) * | 2015-10-02 | 2017-06-13 | 住友重机械工业株式会社 | The lubricant maintenance method of epicyclic gearing and epicyclic gearing |
| CN107606066A (en) * | 2016-07-12 | 2018-01-19 | 纳博特斯克有限公司 | Geared system |
| CN108571567A (en) * | 2017-03-10 | 2018-09-25 | 住友重机械工业株式会社 | Epicyclic gearing |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012023988B4 (en) | 2021-01-14 |
| KR20130064005A (en) | 2013-06-17 |
| KR101455247B1 (en) | 2014-10-27 |
| CN103148167B (en) | 2015-12-23 |
| JP5844628B2 (en) | 2016-01-20 |
| JP2013119913A (en) | 2013-06-17 |
| DE102012023988A1 (en) | 2013-06-13 |
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