CN103807420A - Planetary Gear Deceleration Apparatus And Method For Manufacturing It - Google Patents
Planetary Gear Deceleration Apparatus And Method For Manufacturing It Download PDFInfo
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- CN103807420A CN103807420A CN201310445680.3A CN201310445680A CN103807420A CN 103807420 A CN103807420 A CN 103807420A CN 201310445680 A CN201310445680 A CN 201310445680A CN 103807420 A CN103807420 A CN 103807420A
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- Prior art keywords
- body flange
- epicyclic reduction
- reduction gear
- external gear
- gear unit
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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
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members 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
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
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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
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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
- F16H2001/325—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 comprising a carrier with pins guiding at least one orbital gear with circular holes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Retarders (AREA)
Abstract
The gear (G1) has an inner spline gear wheel (16) provided in inner side of an outer spline gear wheel (11). Flange bodies (41, 42) are arranged in lateral part of the outer spline gear wheel along axial direction. A bolt link i.e. planet carrier bolt, projects in axial direction of the flange body along the outer spline gear wheel to execute plastic transformation at a transition portion of the bolt link. Power from the outer spline gear wheel is transferred to the flange body through the bolt link. An eccentric cam body shaft (18) moves along the outer spline gear wheel.
Description
Technical field
The application advocates the preference of No. 2012-242258th, Japanese patent application based on November 1st, 2012 application.The full content of this application is by reference to being applied in this specification.
The present invention relates to a kind of epicyclic reduction gear unit and manufacture method thereof.
Background technique
In patent documentation 1, disclose epicyclic reduction gear unit.
This epicyclic reduction gear unit possess planetary pinion be external gear and with the internal gear engaging in this external gear.Axial sidepiece at external gear disposes body flange.Pin parts, from body flange outstanding formation integratedly, form single body flange unit.Pin parts run through external gear vertically, and the rotation composition of this external gear is passed to body flange.Body flange is supported on housing, and can be around the axle center rotation of internal gear.
Body flange is synchronizeed and rotates with the rotation composition of the described external gear coming via the transmission of pin parts, and brings into play the function of the output block of epicyclic reduction gear unit.
Patent documentation 1: TOHKEMY 2006-263878 communique (Fig. 2, Fig. 3)
So, in the epicyclic reduction gear unit becoming one at the pin parts that run through external gear and the body flange of axial sidepiece that is disposed at this external gear, exist especially pin parts and body flange between foundation part, flexural stress easily concentrates and fatigue strength (even with for breaking load following but because repeatedly applying the intensity that causes the phenomenon of parts damages corresponding) problem that easily declines.
Summary of the invention
The present invention completes in order to address this is that, the fatigue strength of the foundation part between that its problem is further to strengthen the outstanding epicyclic reduction gear unit forming integratedly from body flange at the pin parts that run through external gear these pin parts and body flange.
The present invention be possess external gear, with internal gear engage in this external gear, be disposed at described external gear axial sidepiece body flange and from the outstanding formation integratedly vertically of this body flange and run through the epicyclic reduction gear unit of the pin parts of external gear, and be made as the structure of the foundation part of described pin parts being implemented to plastic working, solve above-mentioned problem with this.
In the present invention, to pin parts and body flange between foundation part implement plastic working.
Thus, can produce stronger residual pressure stress in the foundation part of pin parts by this plastic working, divide concentrated flexural stress to be relaxed (offseting) at this root bottom part, thereby can further strengthen fatigue strength.
At the pin parts that run through external gear from body flange integratedly the outstanding epicyclic reduction gear unit forming, can further strengthen these pin parts and body flange between the fatigue strength of foundation part.
Accompanying drawing explanation
Fig. 1 is the integrally-built sectional view that has represented to be suitable for the epicyclic reduction gear unit of an example of embodiments of the present invention.
Fig. 2 is the plan view that comprises local amplification profile of the body flange unit of Fig. 1.
In figure: G1-epicyclic reduction gear unit, 11-external gear, 11A-penetration hole, 16-internal gear, 18-input shaft, 21-eccentric body, 41,42-the 1st body flange, the 2nd body flange, 41A, 42A-rolling surface of contact, 44,46-the 1st angular contact ball bearing, the 2nd angular contact ball bearing, 54-is domestic, 56-body flange unit, roller in 58-.
Embodiment
Below, with reference to the accompanying drawings an example of embodiments of the present invention is elaborated.
Fig. 1 is the integrally-built sectional view that has represented to be suitable for the epicyclic reduction gear unit of an example of embodiments of the present invention, and Fig. 2 is the plan view that comprises local amplification profile of the body flange unit of Fig. 1.
This epicyclic reduction gear unit G1 is the epicyclic reduction gear unit that is known as eccentric oscillating-type.
The input shaft 18 of this epicyclic reduction gear unit G1 is made up of the hollow shaft with hollow part 18A, and is disposed at the O1 position, axle center of the internal gear 16 of this epicyclic reduction gear unit G1.Be formed with the spline 18B that receives power for the parts of illustrated driving source never in the end of input shaft 18.In the periphery of input shaft 18,3 eccentric bodies 21 are arranged and are formed vertically integratedly.The periphery of each eccentric body 21 with respect to the axle center of input shaft 18 respectively with the poor bias of eccentric phase of 120 degree.
In the periphery of eccentric body 21, be assembled with 3 external gears 11 via roller bearing 31.In each external gear 11, be engaged in internal gear 16.External gear 11 is arranged in 3 row and assembles and be the increase in order to realize transfer capacity and stagger eccentric phase and the low vibration, the low noise that produce.All the other are all identical except eccentric phase difference for the structure of each row.
Dispose the 1st body flange the 41, the 2nd body flange 42 in the axial both sides of external gear 11.The 1st body flange the 41, the 2nd body flange 42 is rotatably freely supported on housing 36 via the 1st angular contact ball bearing the 44, the 2nd angular contact ball bearing 46.
The periphery of the 1st body flange 41, the 2nd body flange 42 doubles as respectively the inner ring of the 1st angular contact ball bearing 44, the 2nd angular contact ball bearing 46, and forms the rolling surface of contact 42A of the rolling element 46A of rolling surface of contact 41A, the 2nd angular contact ball bearing 46 of the rolling element 44A of the 1st angular contact ball bearing 44.And, in the periphery of the 1st body flange 41, with the rolling surface of contact 41A of the rolling element 44A of the 1st angular contact ball bearing 44 in abutting connection with and be formed with the slip surface 41B of oil sealing 48.
In addition, described input shaft 18 is supported via ball bearing 51,52 at the radially inner side of the 1st body flange 41, the 2nd body flange 42.
The 1st body flange 41 in the paper left side from the 1st body flange the 41, the 2nd body flange 42, with the side 41G of base portion 41D outstanding many (in this mode of execution being 6) columned domestic 54(pin parts that are formed with of one vertically continuously), and form individual body flange unit 56.
In this mode of execution, in order to manufacture the substrate parts (body flange mother metal described later) of body flange unit 56 at these foundation part 54P1 domestic 54 and the 1st body flange 41, except the plastic workings such as the forge hot carried out (after the carburizing of substrate parts, heat treatment) in the past, implement separately the plastic working based on shot peening.About the plastic working of this foundation part 54P1, will describe in detail afterwards.
Domestic 54 have run through the penetration hole 11A forming at external gear 11.Interior roller 58 is as slip promoting member, and rotation covers domestic 54 freely.The restriction that the side 42G of the base portion 42D of the side 41G of interior roller 58 by the base portion 41D of the 1st body flange 41, the 2nd body flange 42 moves axially.,, including domestic 54 foundation part 54P1, interior roller 58 almost covers completely by domestic 54.
Domestic 54 front end be embedded in be formed on the 2nd body flange 42 have an end recess 42C, link the 1st body flange 41 and the 2nd body flange 42 together with the bolt 60 inserting from axial the 1st body flange opposition side.
The outside diameter d 1 that covers domestic 54 interior roller 58 is formed as than the amount of 2 times of the only little offset that is equivalent to eccentric body 21 of the inner diameter D of penetration hole 11A 1.Thus, interior roller 58 covers domestic 54 allows the swing of external gears 11, and maintains all the time the state contacting in interior week of (via interior roller 58) and the eccentric direction opposition side of the penetration hole 11A of external gear 11.
As shown in Figure 2, being the foundation part 54P1 of domestic 54 the 1st body flange 41 sides, domestic 54 parts of holding up from the 1st body flange 41 are on purpose formed with circular-arc recess 54A.
This is to hold up integratedly with the angle of 90 degree from the 1st body flange 41 due to domestic 54, as long as therefore exist a wee bit because of positions that size increases locally such as machining error or processing deficiencies at domestic 54 foundation part 54P1, will cause the rotation smoothly of interior roller 58 to be obstructed.
With respect to this, in the 2nd body flange 42 sides, domestic 54 as parts different from the 2nd body flange 42 to keep the state of uniform outside diameter d 1 to be embedded in end recess 42C, therefore can not produce rotation as hindered interior roller 58 because of machining error or the not enough size increase producing of processing etc.Therefore, be not formed with especially at the foundation part 54P2 of domestic 54 the 2nd body flange 42 sides the circular-arc recess (54A) forming as the foundation part 54P1 in the 1st body flange 41 sides.
In this mode of execution, via the screw that is formed at the 1st body flange 41 in the 1st body flange the 41, the 2nd body flange 42, the passive components of object machinery (omitting diagram) is linked to the side 41H of the 1st body flange 41.
Then, the effect of this epicyclic reduction gear unit G1 is described.
The effect of first, simple declaration transmission of power.
If the power from driving source is passed to input shaft 18 via spline 18B, 3 eccentric bodies 21 that become one with this input shaft 18 are respectively with the phase difference eccentric rotary of 120 degree.Its result, swings respectively 3 external gears 11 via roller bearing 31 with the phase difference of 120 degree.
Each external gear 11 engages with internal gear 16 is interior, if therefore each external gear 11 swings, and the phenomenon that the engaging position that can produce external gear 11 is offset successively with respect to internal gear 16.And, the every rotation of input shaft 18 1 time, external gear 11 is with respect to the amount of the internal gear 16 only rotation numbers of teeth poor (1 tooth) in stationary state.
The rotation (power) of this external gear 11 is passed to the interior roller 58 of domestic 54(of the penetration hole 11A that runs through external gear 11).Thus, run through domestic 54 and interior roller 58 of this external gear 11 around the axle center revolution of internal gear 16, and be passed as the rotation of the 1st body flange 41, the 2nd body flange 42.If the 1st body flange the 41, the 2nd body flange 42 rotates, utilize being rotated by kinetoplast of object machinery that the screw of the 1st body flange 41 links.
At this, with together with the explanation of the manufacture method of this body flange unit 56, especially the effect of body flange unit 56 is described.
In present embodiment, (holding up from the 1st body flange 41) foundation part 54P1 of domestic 54 in body flange unit 56 is implemented to the plastic working based on shot peening.
Particularly, the domestic 54 body flange mother metals of giving prominence to integratedly from the 1st body flange 41 (becoming the parts of the substrate of body flange unit 56) are utilized to steel-based material (for example SCM420(H)) and manufacture by forge hot.After forge hot, carry out carburizing-quenching (heat treatment).And in the present embodiment, after carburizing, heat treatment and enter before fine finishing, domestic 54 the foundation part 54P1 to this body flange mother metal implements the plastic working based on shot peening.
As present embodiment, while manufacturing body flange mother metal itself (global shape of body flange) by plastic workings such as forge hots, in order to form the global shape of this body flange and the plastic working of whole implementation to body flange is not contained in the concept of " the foundation part to pin parts has been implemented plastic working " in the present invention.,, with regard to present embodiment, only a part for the body flange to the foundation part that comprises pin parts is implemented the concept that plastic working (shot peening) is equivalent to " the foundation part to pin parts has been implemented plastic working " in the present invention.
And, if consider from other viewpoints, in present embodiment, after the plastic workings such as the forge hot for the manufacture of body flange mother metal itself, heat-treat, afterwards the root bottom part of pin parts is divided and carries out shot peening, therefore can say that " plastic working of after the operation of global shape that forms body flange mother metal, the foundation part of pin parts being implemented " or " body flange mother metal is heat-treated to the plastic working that the rear foundation part to pin parts is implemented " are equivalent to the concept of " the foundation part to pin parts has been implemented plastic working " in the present invention.
In addition, the plastic working that the foundation part of pin parts involved in the present invention is implemented can be carried out before fine finishing, also can after fine finishing, carry out.
In present embodiment, after carburizing-heat treatment and enter before fine finishing, domestic 54 the foundation part 54P1 to this body flange mother metal implements the plastic working based on shot peening.
In this mode of execution, as the projection material of shot peening, the hardness particle of projection φ 0.6mm, Hv600.Conventionally, it is effectively that shot peening projects with the crevice projection angle of spending with respect to projection surface 90, but in the present embodiment, but with apart from and domestic 54 the rectangular face of axle be the crevice projection angle α that the scopes of 15～30 degree tilt and project.This be due to, when foundation part 54P1 as domestic 54 of the structure of present embodiment is implemented to shot peening, project with the crevice projection angle of 90 degree in domestic 54 axle corresponding thereto, not as projecting from the crevice projection angle tilting a little, can generate all the better from the results of view more residual stress, this has obtained confirmation by inventors' test.To this can after explanation.
Only shot peening is carried out in the relevant position of domestic 54 the foundation part 54P1 to body flange mother metal.For example, for the outer circumferential face beyond domestic 54 foundation part 54P1 (with the slip surface of interior roller 58: while thering is no interior roller, be to become and the face of the slip surface of external gear) do not carry out.And the plastic working of the 2nd this foundation part of body flange 42 sides 54P2 is not also carried out.This be due to, in the 2nd body flange 42 sides, the 2nd body flange 42 is arranged with domestic 54 points, is difficult for occurring as " because the stress that one produces is concentrated " of the 1st body flange 41 sides.
And in this mode of execution, shot peening is not carried out in the relevant position of the 54F of radially inner side portion of this epicyclic reduction gear unit G1 of domestic 54 to body flange mother metal yet.
In present embodiment, by domestic 54 outer circumferential face 54S centered by the part of the distance minimum apart from axle center O1 ± scopes of 90 degree are made as the 54F of radially inner side portion, but are not limited to this, can be for also can be less scope than the larger scopes of scope of ± 90 degree.That is, comprise apart from the certain limit of the part of the distance minimum of axle center O1 for domestic 54 outer circumferential face 54S, do not carry out shot peening.
It is the reasons are as follows.
As aforementioned, when external gear 11 swings, the penetration hole 11A of external gear 11 specifically covers domestic 54 interior roller 58 with direction and the domestic 54(of the opposite direction eccentric with this external gear 11: following identical) butt.In other words, the penetration hole 11A of external gear 11 when no matter external gear 11 is eccentric along any direction all with near the butt of the radial outside portion of domestic 54 epicyclic reduction gear unit G1.And, if external gear 11 and domestic 54 contact position along with external gear 11 certainly then change, be applied with the position deviation maximum eccentric direction of maximum load on domestic 54, in brief, domestic 54 no matter in the time of positive rotation or in the time of reverse rotation all the 54E(of radial outside portion at epicyclic reduction gear unit G1 be positioned at the part more in the outer part than domestic 54 pitch circle r1) be subject to the torque based on rotation from external gear 11, and by this transmission of torque to the 1 body flange the 41, the 2nd body flange 42.Thus, the 54F of radially inner side portion of domestic 54 epicyclic reduction gear unit G1 is difficult for becoming problem in load.For this reason, as long as only the 54E of radial outside portion of domestic 54 epicyclic reduction gear unit G1 is implemented to shot peening, just can roughly realize the object of this shot peening.On the other hand, the 54F of radially inner side portion for epicyclic reduction gear unit G1 does not carry out shot peening, thereby (compared with when spreading all over the complete cycle of domestic 54 foundation part 54P1 and implement shot peening) can realize the further reduction of processing cost, the further shortening of process time.
In this mode of execution, carry out, after the plastic working based on shot peening, carrying out fine finishing.Fine finishing comprises the processing of domestic 54 outer circumferential face 54S, processing, the processing of rolling surface of contact 41A of the 1st angular contact ball bearing 44 and the processing of the slip surface 41B of oil sealing 48 etc. of circular-arc recess 54A.Owing to carrying out fine finishing after shot peening, therefore in the time of shot peening, need not bother and time-consumingly to thoughtful the covering etc. of the enforcement such as rolling surface of contact 41A, the slip surface 41B of oil sealing 48 of the part beyond the foundation part 54P1 of domestic 54 outer circumferential face 54S or angular contact ball bearing 44.But this shot peening (plastic working) → accurately machined order on-fixed, also can be contrary., can be also the order of carburizing, heat treatment → fine finishing → shot peening (plastic working).
In present embodiment, be especially formed with circular-arc recess 54A at domestic 54 foundation part 54P1, therefore, follow the transmission of power of certainly transferring to produce of external gear 11 to domestic 54 o'clock, from structure, flexural stress is especially easily concentrated at this recess 54A.But, in present embodiment, owing to manufacturing by this way the body flange unit 56 of epicyclic reduction gear unit G1, therefore can generate suitable residual stress at domestic 54 foundation part 54P1, and can effectively strengthen fatigue strength.
And, in present embodiment, interior roller 58 positions by the side 41G of the 1st body flange 41, the side 41G sliding contact of the end face of interior roller 58 and the 1st body flange 41, but the derivation effect of the plastic working of the foundation part 54P1 as domestic 54, can also expect " increase of the wearability based on work-hardening " of side 41G and the sliding contact part interior roller 58 of (with this foundation part 54P1 adjacency) the 1st body flange 41.
And in present embodiment, the concrete mechanism of the plastic working of implementing as the foundation part 54P1 to domestic 54, adopts the processing based on shot peening, therefore can simply and at an easy rate carry out plastic working.And, because the crevice projection angle of the particle that makes this shot peening tilts with distance and rectangular 15～30 scope of spending of axle of domestic 54, therefore can prevent the base portion 41D of projected most of particle and domestic 54 or its axial sides 41G collision and at random, can effectively project.As aforementioned, this point is confirmed by inventors' test.
And, from the action characteristic of this eccentric oscillating-type planetary gear speed reducer G1, owing to the 54F of radially inner side portion of domestic 54 this epicyclic reduction gear unit G1 that is difficult for becoming problem on fatigue strength not being implemented to shot peening, therefore can realize the reduction of processing cost and the shortening of process time.
In addition, in above-mentioned mode of execution, in being disposed at the eccentric oscillating-type planetary gear speed reducer G1 of shaft core position of internal gear 16, the eccentric shaft that external gear 11 is swung (input shaft 18) applied the present invention.But, in the present invention, the structure of epicyclic reduction gear unit G1 is not particularly limited to the structure of above-mentioned mode of execution, there is body flange as long as having at the axial sidepiece of external gear, and the pin parts that run through external gear are given prominence to the epicyclic reduction gear unit of the structure forming vertically integratedly from this body flange, just can apply identically, and can obtain identical effect.
For example, as eccentric oscillating-type planetary gear speed reducer, also known following epicyclic reduction gear unit, it is configured in the position configuration of the desaxe from internal gear multiple eccentric shafts for external gear is swung, and the rotation of external gear is passed to body flange by the revolution of eccentric shaft.In the time being this epicyclic reduction gear unit, conventionally adopt and configure in the axial both sides of external gear the body flange that eccentric shaft is supported, and two structures that body flange links by running through the wheel carrier pin (columnar part) of external gear.Thus, this wheel carrier pin is from body flange integratedly when outstanding formation, can be to foundation certain applications the present invention of this wheel carrier pin, and can obtain identical action effect.Now, the section shape of wheel carrier pin is not limited to round-shaped, can be made as the various section shapes such as general triangular shape or trapezoidal shape., it is round-shaped pin parts that pin parts of the present invention are not limited to section, can adopt various section shapes.
And, there is substantially the structure identical with mode of execution before, and by and external gear between carry out transmission of power a multiple domestic part to be replaced as the only epicyclic reduction gear unit G1 of the wheel carrier pin of the simple body flange that links the both sides that are disposed at external gear be also known.In the time being this epicyclic reduction gear unit, also can giving prominence to and run through integratedly foundation certain applications the present invention of the wheel carrier pin of external gear to the body flange of the axial sidepiece from being disposed at external gear, and can obtain same action effect.
And, be not only the eccentric oscillating-type planetary gear speed reducer that this external gear swings, for example, in the simple planetary reduction gear merely revolving round the sun around sun gear as planetary pinion at external gear, when the body flange of the axial sidepiece from being disposed at external gear outstanding formation while running through the pin parts (so-called planet pin) of external gear integratedly, also can be for foundation certain applications the present invention of these pin parts, and can obtain same action effect.
And, the present invention in the axial both sides of external gear without necessarily thering is body flange.For example, can also be applied to and there is the only axial side at external gear and there is body flange, and from this body flange integratedly (with cantilever position) be extruded with the speed reducer of the structure of the pin parts that run through external gear.When such pin parts are given prominence to formation from body flange integratedly with cantilever position, from " flexural stress ", become on the contrary than body flange harsher situation when the axial both sides of external gear, therefore, can be described as the application state that can obtain more significantly effect of the present invention.
And, in above-mentioned mode of execution, dispose interior roller 58 in domestic 54 outside, but also can there is no interior roller 58.
In addition, in above-mentioned mode of execution, consider the action characteristic in domestic (pin parts) upper flexural stress producing of eccentric oscillating-type, for the radially inner side portion of these pin parts, save its foundation part is implemented to plastic working to seek the reduction of processing cost and the shortening of process time.But, even for example as and the penetration hole of external gear between do not carry out the same special reason not having on this action characteristic of planet pin of wheel carrier pin or the simple epicyclic reduction gear unit of transmission of power, if be difficult to, the radially inner side portion of epicyclic reduction gear unit is implemented to plastic working, also can save the plastic working to this radially inner side portion., the not certain foundation part that requires to spread all over pin parts of the present invention all-round implemented plastic working all the time.On the contrary, including this radially inner side portion, do not forbid plastic working for the position beyond domestic foundation part yet.
And, in mode of execution before, about the crevice projection angle of shot peening, with maintain the crevice projection angle of 90 degree with respect to the axle of pin parts compared with, be made as with 15～30 degree scopes tilt crevice projection angle time, consequently can generate more substantial residual stress, be conceived to this, crevice projection angle is maintained in above-mentioned scope, but the scope of suitable crevice projection angle also can, along with the structure of projection rifle of device or size, the shape etc. of particle and change, therefore be not limited to above-mentioned scope.
The shape of the projection material of shot peening or raw material are also not limited to above-mentioned mode of execution example.For example, except projection as the particle of above-mentioned mode of execution, also can be the shot peening of the type of the parts that thrust wire-shaped.
And from the beginning, the mechanism itself that the foundation part of pin parts is implemented to plastic working is just not limited to shot peening.Generate and have the plastic deformation of residual compressive stress and do not produce smear metal the processing method that just can be shaped to desirable shape as long as raw material is applied to stress more than elastic limit, irrelevant kind all can adopt.For example, can for as annular knurl is processed or the plastic working etc. of method based on pressing hard instrument.
Claims (9)
1. an epicyclic reduction gear unit, it possesses: external gear; Internal gear, and engages in this external gear; Body flange, is disposed at the axial sidepiece of described external gear; And pin parts, form and run through external gear from this body flange is outstanding integratedly vertically, this epicyclic reduction gear unit is characterised in that,
The foundation part of described pin parts is implemented to plastic working.
2. epicyclic reduction gear unit according to claim 1, is characterized in that,
Described plastic working is the processing based on shot peening.
3. epicyclic reduction gear unit according to claim 1 and 2, is characterized in that,
The radially inner side portion of this epicyclic reduction gear unit to described pin parts does not implement described plastic working.
4. according to the epicyclic reduction gear unit described in any one in claims 1 to 3, it is characterized in that,
Power is passed to described body flange via described pin parts from described external gear.
5. according to the epicyclic reduction gear unit described in any one in claim 1 to 4, it is characterized in that,
Dispose 1 pair of body flange in the axial both sides of described external gear,
Described 1 pair of body flange links by described pin parts.
6. a manufacture method for epicyclic reduction gear unit, in this manufacture method, described epicyclic reduction gear unit possesses: external gear; Internal gear, and engages in this external gear; Body flange, is disposed at the axial sidepiece of described external gear; And pin parts, form and run through external gear from this body flange is outstanding integratedly vertically, the manufacture method of this epicyclic reduction gear unit is characterised in that, comprises following operation:
Manufacture from the described body flange operation of the outstanding body flange mother metal that is formed with described pin parts integratedly; And
The foundation part of the described pin parts to this body flange mother metal is implemented the operation of plastic working.
7. the manufacture method of epicyclic reduction gear unit according to claim 6, is characterized in that,
Described plastic working is the processing based on shot peening.
8. according to the manufacture method of the epicyclic reduction gear unit described in claim 6 or 7, it is characterized in that,
In described shot peening, the crevice projection angle of shot-peening is that 15～30 scopes of spending are tilted in distance and rectangular of the axle of described pin parts.
9. according to the manufacture method of the epicyclic reduction gear unit described in any one in claim 6 to 8, it is characterized in that,
Carry out, after described plastic working, carrying out fine finishing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012242258A JP5899102B2 (en) | 2012-11-01 | 2012-11-01 | Planetary gear reduction device and manufacturing method thereof |
| JP2012-242258 | 2012-11-01 |
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| Publication Number | Publication Date |
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| CN103807420A true CN103807420A (en) | 2014-05-21 |
| CN103807420B CN103807420B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310445680.3A Active CN103807420B (en) | 2012-11-01 | 2013-09-26 | Epicyclic reduction gear unit and manufacture method thereof |
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| Country | Link |
|---|---|
| JP (1) | JP5899102B2 (en) |
| KR (1) | KR101491679B1 (en) |
| CN (1) | CN103807420B (en) |
| DE (1) | DE102013017925B4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486198A (en) * | 2019-01-29 | 2020-08-04 | 住友重机械工业株式会社 | Eccentric oscillation type reduction gear and method for manufacturing external gear |
| WO2022021862A1 (en) * | 2020-07-29 | 2022-02-03 | 灵智信息服务（深圳）有限公司 | Internal meshing planetary gear device and actuator |
Families Citing this family (7)
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|---|---|---|---|---|
| CN105065580B (en) * | 2015-06-26 | 2018-10-19 | 李响 | Carry welding robot planetary cycloid reducer |
| WO2018172945A1 (en) * | 2017-03-23 | 2018-09-27 | Bharat Forge Limited | A planet carrier and a process and apparatus to manufacture it |
| JP7438665B2 (en) * | 2019-02-05 | 2024-02-27 | 住友重機械工業株式会社 | Eccentric rocking type reduction gear, manufacturing method of eccentric body |
| JP7450364B2 (en) * | 2019-11-01 | 2024-03-15 | 住友重機械工業株式会社 | reduction gear |
| JP7492444B2 (en) * | 2020-11-20 | 2024-05-29 | 住友重機械工業株式会社 | Manufacturing method of gear device |
| DE102022109841A1 (en) | 2022-04-25 | 2023-10-26 | Sumitomo (Shi) Cyclo Drive Germany Gmbh | Transmission assembly |
| DE102022005001A1 (en) | 2022-04-25 | 2023-10-26 | Sumitomo (Shi) Cyclo Drive Germany Gmbh | FORCE RECEIVING COMPONENT AND TRANSMISSION ASSEMBLY |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5537276A (en) * | 1978-09-11 | 1980-03-15 | Hino Motors Ltd | Work method for fillet portion of crankshaft |
| JPH109247A (en) * | 1996-06-21 | 1998-01-13 | Mitsubishi Heavy Ind Ltd | Shot peening attachment for reinforcing crankshaft |
| JPH10109247A (en) * | 1996-09-27 | 1998-04-28 | Andreas Stihl:Fa | Rotation preventing device for tool rotatively borne of working apparatus |
| JP2002161948A (en) * | 2000-11-24 | 2002-06-07 | Tsubakimoto Chain Co | Inner pin supporting structure for planetary gear |
| JP2004083927A (en) * | 2002-08-22 | 2004-03-18 | Kobe Steel Ltd | Method for improving fatigue strength on cut surface of metal plate and high tension steel plate formed product using this method |
| 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 |
| US20070225112A1 (en) * | 2006-03-24 | 2007-09-27 | Aisin Ai Co., Ltd. | Planetary gear type transmission |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000154849A (en) * | 1998-11-19 | 2000-06-06 | Teijin Seiki Co Ltd | Reduction and device provided with gear |
| JP2003106112A (en) * | 2001-09-28 | 2003-04-09 | Toyota Motor Corp | Cam follower, manufacturing method therefor and mechanism thereof |
| JP4484741B2 (en) * | 2005-03-24 | 2010-06-16 | 住友重機械工業株式会社 | Power transmission device and power transmission device for driving robot wrist |
| JP4746907B2 (en) * | 2005-04-11 | 2011-08-10 | 住友重機械工業株式会社 | Planetary gear reducer |
| JP2011226535A (en) * | 2010-04-19 | 2011-11-10 | Nsk Ltd | Planetary gear device for reducer |
| JP5857179B2 (en) | 2011-05-20 | 2016-02-10 | パナソニックＩｐマネジメント株式会社 | Gas shut-off device |
-
2012
- 2012-11-01 JP JP2012242258A patent/JP5899102B2/en active Active
-
2013
- 2013-09-05 KR KR20130106470A patent/KR101491679B1/en active IP Right Grant
- 2013-09-26 CN CN201310445680.3A patent/CN103807420B/en active Active
- 2013-10-28 DE DE102013017925.4A patent/DE102013017925B4/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5537276A (en) * | 1978-09-11 | 1980-03-15 | Hino Motors Ltd | Work method for fillet portion of crankshaft |
| JPH109247A (en) * | 1996-06-21 | 1998-01-13 | Mitsubishi Heavy Ind Ltd | Shot peening attachment for reinforcing crankshaft |
| JPH10109247A (en) * | 1996-09-27 | 1998-04-28 | Andreas Stihl:Fa | Rotation preventing device for tool rotatively borne of working apparatus |
| JP2002161948A (en) * | 2000-11-24 | 2002-06-07 | Tsubakimoto Chain Co | Inner pin supporting structure for planetary gear |
| JP2004083927A (en) * | 2002-08-22 | 2004-03-18 | Kobe Steel Ltd | Method for improving fatigue strength on cut surface of metal plate and high tension steel plate formed product using this method |
| 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 |
| US20070225112A1 (en) * | 2006-03-24 | 2007-09-27 | Aisin Ai Co., Ltd. | Planetary gear type transmission |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486198A (en) * | 2019-01-29 | 2020-08-04 | 住友重机械工业株式会社 | Eccentric oscillation type reduction gear and method for manufacturing external gear |
| WO2022021862A1 (en) * | 2020-07-29 | 2022-02-03 | 灵智信息服务（深圳）有限公司 | Internal meshing planetary gear device and actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103807420B (en) | 2016-08-31 |
| DE102013017925B4 (en) | 2021-04-22 |
| KR101491679B1 (en) | 2015-02-09 |
| JP5899102B2 (en) | 2016-04-06 |
| KR20140055965A (en) | 2014-05-09 |
| JP2014092209A (en) | 2014-05-19 |
| DE102013017925A1 (en) | 2014-05-08 |
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