CN103807420B - Epicyclic reduction gear unit and manufacture method thereof - Google Patents
Epicyclic reduction gear unit and manufacture method thereof Download PDFInfo
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- CN103807420B CN103807420B CN201310445680.3A CN201310445680A CN103807420B CN 103807420 B CN103807420 B CN 103807420B CN 201310445680 A CN201310445680 A CN 201310445680A CN 103807420 B CN103807420 B CN 103807420B
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- Prior art keywords
- body flange
- pin parts
- external gear
- epicyclic reduction
- gear unit
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Classifications
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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
-
- 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
-
- 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
-
- 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
-
- 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 present invention provides a kind of epicyclic reduction gear unit and manufacture method thereof, in this epicyclic reduction gear unit, runs through the pin parts of external gear and is formed from body flange is prominent integratedly, and further enhances these pin parts and foundation part between body flange fatigue strength.The epicyclic reduction gear unit (G1) of the present invention possesses: external gear (11)；Internal gear (16), with this external gear (11) internal messing；1st body flange (41), is configured at the axial side of external gear (11)；Domestic i.e. sell parts (54), formed and run through external gear (11) from the 1st body flange (41) is the most prominent；And interior roller (58), wherein, the foundation part (54P1) of pin parts (54) is implemented plastic working.
Description
Technical field
The application advocates based on Japanese patent application filed in 1 day November in 2012 the 2012-242258th
Priority.The entire disclosure of which is by with reference to being applied in this specification.
The present invention relates to a kind of epicyclic reduction gear unit and manufacture method thereof.
Background technology
Epicyclic reduction gear unit is had disclosed in patent document 1.
This epicyclic reduction gear unit possesses planetary gear i.e. external gear and the internal tooth with this external gear internal messing
Wheel.Axial side at external gear is configured with body flange.Pin parts are from body flange prominent formation, structure integratedly
Become single body flange unit.Pin parts are axially through external gear, and passed by the rotation composition of this external gear
It is handed to body flange.Body flange is supported on housing, and can rotate around the axle center of internal gear.
Body flange is Tong Bu with the rotation composition of the described external gear come via the transmission of pin parts and rotates, and plays
The function of the output block of epicyclic reduction gear unit.
Patent document 1: Japanese Unexamined Patent Publication 2006-263878 publication (Fig. 2, Fig. 3)
So, the body flange at the pin parts with the axial side being configured at this external gear that run through external gear becomes
In the epicyclic reduction gear unit of one, exist especially pin parts and foundation part between body flange,
Bending stress easily concentrates and fatigue strength (even if with for below breaking load but causing portion because repeatedly applying
Intensity corresponding to phenomenon that part damages) problem that easily declines.
Summary of the invention
The present invention completes to solve this problem, and its problem is running through the pin parts of external gear
Further enhance from the body flange integratedly prominent epicyclic reduction gear unit formed these pin parts and flange
The fatigue strength of the foundation part between body.
The present invention is to possess external gear and the internal gear of this external gear internal messing, be configured at described external gear
The body flange of axial side and from this body flange the most prominent pin portion formed and run through external gear
The epicyclic reduction gear unit of part, and it is set to the knot of the enforcement plastic working of the foundation part to described pin parts
Structure, solves above-mentioned problem with this.
In the present invention, to pin parts and foundation part between body flange implement plastic working.
Thus, stronger residual compression can be produced in the foundation part of pin parts by this plastic working,
Bending stress in this root bottom part diversity is alleviated (offseting) such that it is able to further enhance tired strong
Degree.
Highlight integratedly the epicyclic reduction gear unit formed from body flange at the pin parts running through external gear,
Can further enhance these pin parts and foundation part between body flange fatigue strength.
Accompanying drawing explanation
Fig. 1 is the overall knot of the epicyclic reduction gear unit of the example representing and being suitable for embodiments of the present invention
The sectional view of structure.
Fig. 2 is the front view comprising enlarged local section of the body flange unit of Fig. 1.
In figure: G1-epicyclic reduction gear unit, 11-external gear, 11A-through hole, 16-internal gear, 18-
Power shaft, 21-eccentric body, 41,42-the 1st body flange, the 2nd body flange, 41A, 42A-Structure deformation
Face, 44,46-the 1st angular contact ball bearing, the 2nd angular contact ball bearing, 54-is domestic, 56-body flange list
Unit, roller in 58-.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings an example of embodiments of the present invention is described in detail.
Fig. 1 is the overall knot of the epicyclic reduction gear unit of the example representing and being suitable for embodiments of the present invention
The sectional view of structure, Fig. 2 is the front view comprising enlarged local section of the body flange unit of Fig. 1.
This epicyclic reduction gear unit G1 is the epicyclic reduction gear unit being referred to as eccentric oscillating-type.
The power shaft 18 of this epicyclic reduction gear unit G1 is made up of the hollow shaft with hollow part 18A, and
It is configured at the O1 position, axle center of the internal gear 16 of this epicyclic reduction gear unit G1.End at power shaft 18
Portion is formed with the spline 18B for receiving power from the not shown parts driving source.At power shaft 18
Periphery, 3 the most axially aligned formation of eccentric body 21.The periphery of each eccentric body 21 is relative to input
The axle center of axle 18 is respectively with the eccentric phase difference bias of 120 degree.
In the periphery of eccentric body 21, it is assembled with 3 external gears 11 via roller bearing 31.Each external gear
11 internal messing are in internal gear 16.External gear 11 is arranged in 3 row and assembles is the increasing in order to realize transfer capacity
The low vibration that adds and stagger eccentric phase and produce, low noise.The structure of each row is except eccentric phase not
With remaining is the most identical in addition.
Internal gear 16 is in this embodiment by internal gear main body 16A integrated with housing 36 and rotation
Be supported on freely this internal gear main body 16A and constitute this internal gear 16 internal tooth export trade 16B constitute.
The interior number of teeth (radical of export trade 16B) of internal gear 16 only has more a bit than the outer number of teeth of external gear 11 (should
Example only has more 1).
The 1st body flange the 41, the 2nd body flange 42 it is configured with in the axial both sides of external gear 11.1st is convex
Edge body the 41, the 2nd body flange 42 revolves via the 1st angular contact ball bearing the 44, the 2nd angular contact ball bearing 46
Turn and be supported on housing 36 freely.
1st body flange 41, the periphery of the 2nd body flange 42 double as respectively the 1st angular contact ball bearing 44,
The inner ring of 2 angular contact ball bearings 46, and constitute the rolling of the rolling element 44A of the 1st angular contact ball bearing 44
Contact surface 41A, the Structure deformation face 42A of rolling element 46A of the 2nd angular contact ball bearing 46.Further, exist
The periphery of the 1st body flange 41, with the Structure deformation face of the rolling element 44A of the 1st angular contact ball bearing 44
41A is adjacent and is formed with the sliding surface 41B of oil sealing 48.
It addition, described power shaft 18 the 1st body flange the 41, the 2nd body flange 42 radially inner side via
Ball bearing 51,52 and be supported by.
The 1st body flange 41 on the left of paper from the 1st body flange the 41, the 2nd body flange 42, with base
The side 41G of portion 41D is formed with many (in this embodiment being 6) continuously along axially one is prominent
Columned domestic 54(sells parts), and constitute the body flange unit 56 of individuality.
In this embodiment, in order in this foundation part 54P1 system with the 1st body flange 41 of domestic 54
Make the substrate parts (body flange mother metal described later) of body flange unit 56, except the forge hot etc. carried out in the past
Plastic working (after the carburizing of substrate parts, heat treatment), implements plasticity based on peening separately and adds
Work.About the plastic working of this foundation part 54P1, will be discussed in more detail afterwards.
Domestic 54 have run through the through hole 11A formed at external gear 11.Interior roller 58 is as slip promotion division
Part, rotatably covers domestic 54.The interior roller 58 side by base portion 41D of the 1st body flange 41
The restriction that 41G, the side 42G of base portion 42D of the 2nd body flange 42 move axially.That is, bag
Including including foundation part 54P1 of domestic 54, interior roller 58 is almost completely covered domestic 54.
The leading section of domestic 54 be embedded in be formed at the 2nd body flange 42 have end recess 42C, and from axially
The bolt 60 that 1st body flange opposition side is inserted links the 1st body flange the 41 and the 2nd body flange 42 together.
The internal diameter D1 that the outside diameter d 1 of the interior roller 58 covering domestic 54 is formed as than through hole 11A is the least quite
In the amount of 2 times of offset of eccentric body 21.Thus, the domestic 54 permission external tooths that interior roller 58 is covered
The swing of wheel 11, and maintain the bias side of (via interior roller 58) and the through hole 11A of external gear 11 all the time
The state of the inner circumferential contact to opposition side.
As in figure 2 it is shown, the 1st convex in domestic 54 parts the most domestic 54 holded up from the 1st body flange 41
The recess 54A of arc-shaped it is intentionally formed in foundation part 54P1 of edge body 41 side.
This is to hold up integratedly with the angle of 90 degree from the 1st body flange 41 due to domestic 54, therefore including
Because of mismachining tolerance or processing is not enough etc. and chi locally simply by the presence of a wee bit for foundation part 54P1 of pin 54
The position of very little increase, may result in the blocked rotation smoothly of interior roller 58.
In contrast, in the 2nd body flange 42 side, domestic 54 as different from the 2nd body flange 42
Parts are to keep the state of uniform outside diameter d 1 to be embedded in end recess 42C, interior thus without producing as hindered
The size increase etc. produced because of mismachining tolerance or processing deficiency of the rotation of roller 58.Therefore, domestic 54
Foundation part 54P2 of the 2nd body flange 42 side be not especially formed just like the root in the 1st body flange 41 side
The recess (54A) of the arc-shaped that bottom point 54P1 is formed.
In this embodiment, via the 1st body flange the 41, the 2nd body flange 42 is formed at the 1st flange
The screw of body 41, the passive components of object machinery (omitting diagram) is linked to the side of the 1st body flange 41
Face 41H.
Then, the effect to this epicyclic reduction gear unit G1 illustrates.
First, the effect of simple declaration power transmission.
If the power coming self-driven source is transferred to power shaft 18 via spline 18B, then become with this power shaft 18
3 eccentric bodies 21 being integrated are respectively with the phase difference eccentric rotary of 120 degree.Its result, via roller
Bearing 31 makes 3 external gears 11 swing with the phase difference of 120 degree respectively.
Each external gear 11 and internal gear 16 internal messing, if the most each external gear 11 swings, then outside producing
The phenomenon that the position of engagement of gear 11 offsets successively relative to internal gear 16.Further, power shaft 18 often revolves
Turning 1 time, external gear 11 is relative to the internal gear 16 only rotation number of teeth being in stationary state poor (1 tooth)
Amount.
The rotation (power) of this external gear 11 is transferred to run through domestic the 54 of the through hole 11A of external gear 11
(interior roller 58).Thus, domestic 54 and interior roller 58 axle around internal gear 16 of this external gear 11 is run through
The heart revolves round the sun, and the rotation as the 1st body flange the 41, the 2nd body flange 42 is passed.If the 1st body flange
41, the 2nd body flange 42 rotates, then utilize the quilt of the object machinery that the screw of the 1st body flange 41 links
Kinetoplast rotates.
Here, together with the explanation of the manufacture method of this body flange unit 56, especially to body flange unit 56
Effect illustrate.
In present embodiment, to (holding up from the 1st body flange 41 of domestic 54 in body flange unit 56
) the enforcement plastic working based on peening of foundation part 54P1.
Specifically, the body flange mother metal highlighted domestic 54 integratedly from the 1st body flange 41 (becomes flange
The parts of the substrate of body unit 56) utilize steel-based material (such as SCM420(H)) and come by forge hot
Manufacture.Carburizing-quenching (heat treatment) is carried out after forge hot.Further, in the present embodiment, carburizing,
Foundation part 54P1 enforcement base after heat treatment and before entrance finishing, to domestic the 54 of this body flange mother metal
Plastic working in peening.
Such as present embodiment, manufacture body flange mother metal (body flange whole itself by plastic workings such as forge hots
Shape) time, in order to form the global shape of this body flange and the plastic working of whole implementation to body flange
The concept of " the foundation part of pin parts is implemented plastic working " of being not included in the present invention.I.e., just
For present embodiment, only a part for the body flange of the foundation part comprising pin parts is implemented plastic working
(peening) is equivalent to the general of " the foundation part of pin parts is implemented plastic working " in the present invention
Read.
Further, if considering from other viewpoints, in present embodiment, body flange mother metal itself is manufactured being used for
The plastic working such as forge hot after be heat-treated, the foundation part to pin parts carries out peening afterwards, because of
This is it may be said that " implement the foundation part of pin parts after forming the operation of global shape of body flange mother metal
Plastic working " or " plasticity after being heat-treated body flange mother metal implemented the foundation part of pin parts adds
Work " be equivalent to the concept of " the foundation part of pin parts is implemented plastic working " in the present invention.
It addition, the plastic working to the foundation part enforcement of pin parts involved in the present invention can be in finishing
Carry out, it is also possible to carry out after finishing before.
In present embodiment, after carburizing-heat treatment and before entrance finishing, in this body flange mother metal
Foundation part 54P1 of pin 54 implements plastic working based on peening.
In this embodiment, as the projection material of peening, the hardness grain of projection φ 0.6mm, Hv600
Son.Generally, it is effective that peening carries out projection with the crevice projection angle relative to projection surface 90 degree,
But in the present embodiment, but with the scope inclination away from the face at a right angle with the axle of domestic 54 being 15～30 degree
Crevice projection angle α project.This is because, to the structure such as present embodiment domestic 54 foundation
When part 54P1 implements peening, the axle in domestic 54 is carried out with the crevice projection angle of 90 degree corresponding thereto
Projection, not as projecting from the crevice projection angle being slightly tilted, can generate more all the better
Many residual stress, this is confirmed that by the test of inventors.This can be illustrated later.
Only the relevant position of foundation part 54P1 of domestic the 54 of body flange mother metal is carried out peening.Example
As, for the outer peripheral face (sliding surface with interior roller 58: do not have beyond foundation part 54P1 of domestic 54
It is the face becoming the sliding surface with external gear during interior roller) do not carry out.Further, even should in the 2nd body flange 42 side
The plastic working of foundation part 54P2 is not carried out.This is because, in the 2nd body flange 42 side, the 2nd
Body flange 42 is provided separately with domestic 54, is not susceptible to " producing such as the 1st body flange 41 side because of one
Raw stress is concentrated ".
And, this epicyclic reduction gear unit G1 in this embodiment, to domestic the 54 of body flange mother metal
The relevant position of radially inner side portion 54F the most do not carry out peening.
In present embodiment, by the outer peripheral face 54S of domestic 54 with part that the distance away from axle center O1 is minimum
Centered by ± scope of 90 degree is set to radially inner side portion 54F, but is not limited to this, can be the model than ± 90 degree
Enclose bigger scope and be alternatively less scope.That is, the outer peripheral face 54S for domestic 54 includes away from axle
The certain limit of the part that the distance of heart O1 is minimum, does not carry out peening.
Its reason is as follows.
During it has been observed that external gear 11 swings, the through hole 11A of external gear 11 with this external gear 11 institute
Eccentric direction in opposite direction and domestic 54(specifically cover the interior roller 58 of domestic 54: following phase
With) abut.In other words, when the through hole 11A of external gear 11 is regardless of external gear 11 bias in any direction
All vicinity with the radially outer side portions of the epicyclic reduction gear unit G1 of domestic 54 abut.Further, if external tooth
The contact position of wheel 11 and domestic 54 transfers change certainly along with external gear 11, is applied with on the most domestic 54
The deviation maximum eccentric direction, position of peak load, in short, it may be said that domestic 54 no matter when positive rotation
Or all radially outer side portions 54E(at epicyclic reduction gear unit G1 are positioned at ratio domestic 54 when reverse rotation
Part more outward for pitch circle r1) from external gear 11 by torque based on rotation, and this torque is passed
It is handed to the 1st body flange the 41, the 2nd body flange 42.Thus, the epicyclic reduction gear unit G1 of domestic 54
Radially inner side portion 54F load on be difficult to become problem.If to this end, only planet tooth to domestic 54
Radially outer side portions 54E of wheel deceleration device G1 implements peening, it becomes possible to substantially realize this peening
Purpose.On the other hand, the radially inner side portion 54F for epicyclic reduction gear unit G1 does not carry out shot-peening
Hardening, thus (compared with when implementing peening throughout the complete cycle of foundation part 54P1 of domestic 54)
It is capable of the further shortening of the reduction further of processing cost, process time.
In this embodiment, after carrying out plastic working based on peening, finish.Finishing bag
Include domestic 54 the processing of outer peripheral face 54S, the processing of recess 54A of arc-shaped, the 1st angular contact ball axle
Hold the processing of the Structure deformation face 41A of 44 and the processing etc. of the sliding surface 41B of oil sealing 48.Due in spray
Finish after ball hardening, therefore when peening, need not bother and time-consumingly to outside domestic 54
Part beyond foundation part 54P1 of side face 54S or the Structure deformation face 41A of angular contact ball bearing 44,
The sliding surface 41B of oil sealing 48 etc. implement thoughtful covering.But, this peening (plastic working)
The order of → finishing on-fixed, it is also possible to contrary.I.e., it is also possible to for carburizing, heat treatment → finishing
The order of → peening (plastic working).
In present embodiment, especially foundation part 54P1 domestic 54 is formed with the recess of arc-shaped
54A, therefore, when being transferred to domestic 54 with the power certainly transferring to produce of external gear 11, from structure
Seeing, bending stress is particularly susceptible to be concentrated at this recess 54A.But, in present embodiment, due to this
Mode manufactures the body flange unit 56 of epicyclic reduction gear unit G1, therefore, it is possible at the root bottom part of domestic 54
Divide 54P1 to generate suitable residual stress, and can effectively strengthen fatigue strength.
Further, in present embodiment, it is fixed that interior roller 58 is carried out by the side 41G of the 1st body flange 41
Position, the end face of interior roller 58 and the side 41G sliding contact of the 1st body flange 41, but as domestic 54
The derivation effect of the plastic working of foundation part 54P1, additionally it is possible to expect (to adjoin with this foundation part 54P1
) slidably contacting section with interior roller 58 of the side 41G of the 1st body flange 41 " based on processing hardening
The increase of mar proof ".
Further, in present embodiment, as the plastic working implemented of foundation part 54P1 to domestic 54
Concrete mechanism, uses processing based on peening, therefore, it is possible to simply and at a low price carry out plastic working.
Further, owing to making the crevice projection angle of the particle of this peening with away from the face at a right angle with the axle of domestic 54
The scope of 15～30 degree tilts, therefore, it is possible to prevent most of particle and the base portion of domestic 54 projected
41D or its axial sides 41G collision and at random, it is possible to effectively project.It has been observed that this point is
It is confirmed by the test of inventors.
Further, from the point of view of the action characteristic of this eccentric oscillating-type planetary gear deceleration device G1, due to the most right
Be difficult on fatigue strength to become problem domestic 54 the radially inner side portion of this epicyclic reduction gear unit G1
54F implements peening, therefore, it is possible to realize the reduction of processing cost and the shortening of process time.
It addition, in above-mentioned embodiment, join at the eccentric shaft (power shaft 18) making external gear 11 swing
The eccentric oscillating-type planetary gear deceleration device G1 of the shaft core position being placed in internal gear 16 applies this
Bright.But, in the present invention, the structure of epicyclic reduction gear unit G1 is not particularly limited to above-mentioned enforcement
The structure of mode, as long as have the axial side at external gear have body flange, and runs through the pin of external gear
Parts are from the epicyclic reduction gear unit of this body flange the most prominent structure formed, it becomes possible to complete
Apply exactly the samely, and be obtained in that identical effect.
Such as, as eccentric oscillating-type planetary gear deceleration device, it is also known that following planetary gear reduction quick-mounting
Put, consist of be configured with in the position offset from the axle center of internal gear multiple inclined for make external gear swing
Heart body axle, and the rotation of external gear is transferred to body flange by the revolution of eccentric shaft.When for this planet
During mechanical reduction gear, eccentric shaft is supported by the axial both sides configuration being typically employed in external gear
Body flange, and two body flanges are by running through the structure that the wheel carrier pin (columnar part) of external gear links.By
This, this wheel carrier pin is when body flange prominent formation integratedly, it is possible to the foundation certain applications basis to this wheel carrier pin
Invention, and it is obtained in that identical action effect.Now, the section shape of wheel carrier pin is not limited to circular shape
Shape, it is possible to be set to the various section shapes such as general triangular shape or trapezoidal shape.That is, the pin portion of the present invention
It is round-shaped pin parts that part is not limited to section, it is possible to use various section shape.
Further, there is substantially identical with embodiment before structure, and will enter between external gear
A multiple domestic part for action edge transmission is replaced as only simple both sides convex linking and being configured at external gear
The epicyclic reduction gear unit G1 of the wheel carrier pin of edge body is also known.When for this planetary gear reduction quick-mounting
When putting, it is also possible to the body flange from the axial side being configured at external gear is highlighted integratedly and runs through external gear
The foundation certain applications present invention of wheel carrier pin, and same action effect can be obtained.
And, it is not only the eccentric oscillating-type planetary gear deceleration device that this external gear carries out swinging, such as
Merely carry out in the simple planetary reducer revolved round the sun around sun gear at external gear as planetary gear,
When the body flange prominent formation integratedly from the axial side being configured at external gear runs through the pin parts of external gear
Time (so-called planet pin), it is also possible to for the foundation certain applications present invention of these pin parts, and can obtain same
The action effect of sample.
Further, the present invention in the axial both sides of external gear without necessarily having body flange.Such as, additionally it is possible to should
For having only axial side at external gear, there is body flange, and from this body flange integratedly (with cantilever-shaped
State) protrude the deceleration device of structure of the pin parts running through external gear.Such pin parts from body flange with
During cantilever position prominent formation integratedly, from the point of view of " bending stress ", become than body flange at external tooth on the contrary
Situation harsher during the axial both sides taken turns, therefore, it can be stated that be can significantly more to obtain effect of the present invention
Application state.
Further, in above-mentioned embodiment, interior roller 58 it is configured with in the outside of domestic 54 but it also may do not have
Interior roller 58.
It addition, in above-mentioned embodiment, it is contemplated that domestic (pin parts) the upper generation at eccentric oscillating-type
The action characteristic of bending stress, for the radially inner side portion of these pin parts, saves and implements to mould to its foundation part
Property processing to seek reducing and the shortening of process time of processing cost.But, even if such as with external tooth
Wheel carrier pin or the planet pin one of simple epicyclic reduction gear unit of power transmission is not carried out between the through hole of wheel
Sample does not has the special reason on this action characteristic, if being difficult to the radially inner side to epicyclic reduction gear unit
Portion implements plastic working, then can also save the plastic working to this radially inner side portion.That is, the present invention is not
Certain the all-round of foundation part required throughout pin parts implements plastic working all the time.On the contrary, including this radially
Including inside portion, plastic working is also not prohibited by for the position beyond domestic foundation part.
Further, in embodiment before, about the crevice projection angle of peening, and relative to pin parts
Axle maintains the crevice projection angle of 90 degree to compare, when being set to the crevice projection angle tilted with the scope of 15～30 degree, its
Result is to generate more substantial residual stress, is conceived to this, and crevice projection angle maintains above-mentioned scope
In, but the scope of suitable crevice projection angle also can be along with the structure of the projection rifle of device or the size of particle, shape
Shape etc. and change, be therefore not limited to above-mentioned scope.
Shape or the raw material of the projection material of peening are also not limited to above-mentioned embodiment example.Such as, remove
Outside the particle of projection such as above-mentioned embodiment, it is possible to for thrusting the shot-peening of the type of the parts of wire-shaped hard
Change.
Further, from the beginning, the mechanism of the foundation part enforcement plastic working of pin parts is inherently not limited to
Peening.As long as raw material is applied the stress of more than elastic limit and generates and there is moulding of residual compressive stress
Property deformation and do not produce chip and just can be shaped to the processing method of desired shape, the most unrelated kind all can be adopted
With.For example, it is possible to be such as annular knurl processing or plastic working etc. based on the method pressing hard instrument.
Claims (7)
1. an epicyclic reduction gear unit, it possesses: external gear；Eccentric body, makes described external gear put
Dynamic；Internal gear, with this external gear internal messing；Body flange, is configured at the axial side of described external gear；And
Pin parts, from this body flange the most prominent through hole formed and run through external gear, and power
It is transferred to described body flange from described external gear, the feature of this epicyclic reduction gear unit via described pin parts
It is,
Described pin parts or cover interior roller this planetary gear reduction quick-mountings at described pin parts of described pin parts
The radially outer side portions side put abuts with the through hole of described external gear,
The foundation part of described pin parts is implemented plastic working,
The radially outer side portions of this epicyclic reduction gear unit of described pin parts is implemented plastic working, to described
The radially inner side portion of this epicyclic reduction gear unit of pin parts does not implement plastic working.
Epicyclic reduction gear unit the most according to claim 1, it is characterised in that
Described plastic working is processing based on peening.
Epicyclic reduction gear unit the most according to claim 1 and 2, it is characterised in that
It is configured with 1 pair of body flange in the axial both sides of described external gear,
Described 1 pair of body flange is linked by described pin parts.
4. a manufacture method for epicyclic reduction gear unit, in this manufacture method, described planetary gear reduction
Speed variator possesses: external gear；Eccentric body, makes described external gear swing；Nibble in internal gear, with this external gear
Close；Body flange, is configured at the axial side of described external gear；And pin parts, from this body flange vertically
Highlight body and form and run through the through hole of external gear, and power via described pin parts from described external gear
Be transferred to described body flange, described pin parts or cover the interior roller of described pin parts at described pin parts should
The radially outer side portions side of epicyclic reduction gear unit abuts with the through hole of described external gear, this planetary gear reduction
The manufacture method of speed variator is characterised by, comprises following operation:
Manufacture the operation from the described body flange prominent body flange mother metal being formed with described pin parts integratedly；And
Foundation part to the described pin parts of this body flange mother metal implements the operation of plastic working,
In the operation implementing plastic working, outside to the footpath of this epicyclic reduction gear unit of described pin parts
Sidepiece implements plastic working, does not implements the radially inner side portion of this epicyclic reduction gear unit of described pin parts
Plastic working.
The manufacture method of epicyclic reduction gear unit the most according to claim 4, it is characterised in that
Described plastic working is processing based on peening.
The manufacture method of epicyclic reduction gear unit the most according to claim 5, it is characterised in that
In described peening, the crevice projection angle of shot-peening away from the face at a right angle with the axle of described pin parts is being
Tilt in the range of 15～30 degree.
7., according to the manufacture method of the epicyclic reduction gear unit described in claim 4 or 5, its feature exists
In,
After carrying out described plastic working, finish.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103807420A CN103807420A (en) | 2014-05-21 |
| CN103807420B true CN103807420B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310445680.3A Active CN103807420B (en) | 2012-11-01 | 2013-09-26 | Epicyclic reduction gear unit and manufacture method thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5899102B2 (en) |
| KR (1) | KR101491679B1 (en) |
| CN (1) | CN103807420B (en) |
| DE (1) | DE102013017925B4 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP7319784B2 (en) | 2019-01-29 | 2023-08-02 | 住友重機械工業株式会社 | Manufacturing method for eccentric oscillating speed reducer and external gear |
| 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 |
| JP7368344B2 (en) * | 2020-07-29 | 2023-10-24 | 美的集団股▲フン▼有限公司 | Internally meshing planetary gears and actuators |
| JP7492444B2 (en) * | 2020-11-20 | 2024-05-29 | 住友重機械工業株式会社 | Manufacturing method of gear device |
| DE102022005001A1 (en) | 2022-04-25 | 2023-10-26 | Sumitomo (Shi) Cyclo Drive Germany Gmbh | FORCE RECEIVING COMPONENT AND TRANSMISSION ASSEMBLY |
| DE102022109841A1 (en) | 2022-04-25 | 2023-10-26 | Sumitomo (Shi) Cyclo Drive Germany Gmbh | Transmission assembly |
Family Cites Families (13)
| 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 |
| DE29616862U1 (en) * | 1996-09-27 | 1996-11-14 | Fa. Andreas Stihl, 71336 Waiblingen | Anti-rotation device for a rotating tool of an implement |
| JP2000154849A (en) * | 1998-11-19 | 2000-06-06 | Teijin Seiki Co Ltd | Reduction and device provided with gear |
| JP3830021B2 (en) * | 2000-11-24 | 2006-10-04 | 株式会社椿本チエイン | Inner pin support structure of planetary gear reducer |
| JP2003106112A (en) * | 2001-09-28 | 2003-04-09 | Toyota Motor Corp | Cam follower, manufacturing method therefor and mechanism thereof |
| JP3802855B2 (en) * | 2002-08-22 | 2006-07-26 | 株式会社神戸製鋼所 | Method for improving fatigue strength of cut surface of high-tensile steel sheet and high-tensile steel sheet molded product using it |
| JP4947884B2 (en) * | 2004-08-20 | 2012-06-06 | 住友重機械工業株式会社 | Method for manufacturing pin of planetary rotating member of planetary reduction mechanism |
| 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 |
| JP2007255642A (en) * | 2006-03-24 | 2007-10-04 | Aisin Ai Co Ltd | Planetary gear type transmission |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013017925B4 (en) | 2021-04-22 |
| JP5899102B2 (en) | 2016-04-06 |
| KR20140055965A (en) | 2014-05-09 |
| DE102013017925A1 (en) | 2014-05-08 |
| KR101491679B1 (en) | 2015-02-09 |
| CN103807420A (en) | 2014-05-21 |
| JP2014092209A (en) | 2014-05-19 |
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