CN103322132A - Eccentric swinging type speed reducer and manufacturing method of external gear thereof - Google Patents
Eccentric swinging type speed reducer and manufacturing method of external gear thereof Download PDFInfo
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- CN103322132A CN103322132A CN2013100782095A CN201310078209A CN103322132A CN 103322132 A CN103322132 A CN 103322132A CN 2013100782095 A CN2013100782095 A CN 2013100782095A CN 201310078209 A CN201310078209 A CN 201310078209A CN 103322132 A CN103322132 A CN 103322132A
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Abstract
The invention provides an eccentric swinging type speed reducer and a manufacturing method of an external gear thereof, wherein the external gear can be manufactured with low costs and short time. The eccentric swinging type speed reducer (G1) comprises the components as follows: external gears (12, 14); an inner gear (16) inscribed with the external gears (12, 14) when swinging; and an inner roll, which is a pin component (38). The pin component (38) is inserted into the through holes (34, 36) of the external gears (12, 14), contacted to the inner circumferences of the through holes (34, 36) and synchronous with the self rotation of the external gears (12, 14), and the inner diameters of the through holes (34, 36) are nonuniform axially.
Description
Technical field
The present invention relates to the manufacture method of a kind of Eccentrically rocking type reduction gear and external gear thereof.
Background technique
For example, disclose Eccentrically rocking type reduction gear in the patent documentation 1.
The internal gear that connects in when this speed reducer possesses external gear and the swing of this external gear.The swing of external gear is undertaken by the eccentric body that is arranged at input shaft.At external gear a plurality of penetration holes are set, insert pin-shaped parts (sold inside the country and interior roller).The lip part of output shaft is fixed or be embedded in to pin-shaped parts.Therefore the rotation composition of pin-shaped parts and external gear is synchronous.
Described external gear has the external tooth of quantity that quantity is less than the interior number of teeth of internal gear a little.
In this structure, if the input shaft rotation swings when then meshing in external gear and the internal gear, relatively rotate (rotation) with respect to this internal gear.By the described penetration hole through being arranged at external gear and be inserted in this penetration hole pin-shaped parts slip and take out this rotation composition from output shaft, thereby the rotation after obtaining to slow down from this output shaft.
Patent documentation 1: TOHKEMY 2000-249199 communique
In this kind Eccentrically rocking type reduction gear, so need to form a plurality of penetration holes, insert (perhaps being used for the restriction rotation) pin-shaped parts of the rotation that is used for taking out external gear in these a plurality of penetration holes.With regard to this penetration hole, more require and the higher sliding of pin-shaped parts and long-term life-span, then more require good flatness and higher hardness.
Therefore, the formation of this penetration hole expends time in and cost, becomes the main cause of the manufacture cost rising of external gear.
Summary of the invention
The present invention finishes in order to address this is that, and its problem is, provide a kind of can be with shorter time and the Eccentrically rocking type reduction gear of low cost fabrication external gear more.
The present invention solves above-mentioned problem by being made as following structure, a kind of Eccentrically rocking type reduction gear, and it possesses: external gear; The internal gear that connects in when this external gear swings; And pin-shaped parts, its insertion is arranged at the penetration hole of described external gear, and it is synchronous to contact the rotation composition of the described external gear of interior Zhou Bingyu of this penetration hole, and the internal diameter of wherein said penetration hole is inhomogeneous in the axial direction.
Among the present invention, be made as deliberately unevenly formation and spreaded all in the nature of things the entire axial length of external gear with the penetration hole of uniform internal diameter formation in the past.This intention is, according to opinion described later, only makes the inner peripheral surface of axial part have the function of original " penetration hole " that really help transmission of power, and makes other parts not have this function.Thus, expend time in and the processing of the penetration hole of cost especially fine finishing only get final product in this axial part, correspondingly can reduce the time and the cost that are used to form penetration hole.
In addition, if understand from the viewpoint of the manufacture method of external gear, then the present invention also can be regarded as following invention: " a kind of manufacture method of external gear of Eccentrically rocking type reduction gear, this Eccentrically rocking type reduction gear possesses: external gear; The internal gear that connects in when this external gear swings; And pin-shaped parts, these pin-shaped parts insert the penetration hole that is arranged at described external gear, and the rotation composition of the described external gear of interior Zhou Bingyu that contacts this penetration hole is synchronous, and this manufacture method is characterised in that, comprises: the operation that forms the foramen primum of described penetration hole at the raw material of described external gear; The axial local internal diameter of this foramen primum is expanded as the operation in large footpath; This part is become after the operation in large footpath, the raw material of this external gear is carried out the operation of cure process; And after this cure process, carry out not becoming in the described foramen primum operation that the fine finishing of the part in large footpath is processed ".
The invention effect
Can obtain according to the present invention a kind of can be with shorter time and the Eccentrically rocking type reduction gear of low cost fabrication external gear more.
Description of drawings
Fig. 1 is the amplification sectional view of the major component of the related Eccentrically rocking type reduction gear of an example of expression embodiments of the present invention.
Fig. 2 is the sectional view of major component of the gear motor of the related speed reducer of applicable above-mentioned mode of execution.
Fig. 3 is the sectional view along the arrow III-III line of Fig. 2.
Fig. 4 is the manufacturing procedure picture of the external gear of the related Eccentrically rocking type reduction gear of above-mentioned mode of execution.
Fig. 5 is near the amplification sectional view of penetration hole of the related external gear of the variation (other mode of executions) of above-mentioned mode of execution.
Fig. 6 is the related amplification sectional views that are equivalent to Fig. 5 of other variation of above-mentioned mode of execution.
Fig. 7 is the related amplification sectional view that is equivalent to Fig. 5 of another other variation of above-mentioned mode of execution.
Fig. 8 is the related amplification sectional view that is equivalent to Fig. 5 of another other variation of above-mentioned mode of execution.
Among the figure: 12,14-external gear, the 16-internal gear, 22, the 24-eccentric body, 34, the 36-penetration hole, 34A, 36A-large-diameter portion, 34B, 36B-sizing section, roller in the 38-, 40-is sold inside the country.
Embodiment
Below, with reference to the accompanying drawings, an example of embodiments of the present invention is elaborated.
The gear motor of the Eccentrically rocking type reduction gear that one of applicable embodiments of the present invention example shown in Fig. 1～Fig. 3 is related.
This gear motor GM1 links the gear motor of motor M1 and Eccentrically rocking type reduction gear G1 with being integrated.Eccentrically rocking type reduction gear G1 possesses external gear 12,14 and the internal gear 16 that connects in when swinging of this external gear 12,14, and constitutes external gear 12,14 is taken out as output with the relative rotation of internal gear 16.
The motor drive shaft 18 of motor M1 doubles as the input shaft 20 of speed reducer G1.On input shaft 20, cartridge 25 arranged through key 21 is chimeric.As shown in Figure 1, be formed with 2 eccentric bodies 22,24 take predetermined phase poor (in this example as 180 degree) on the cartridge 25.The axle center O1 of each eccentric body 22,24 the relative input shaft 20 in axle center is eccentric δ e only respectively.On each eccentric body 22,24, through roller bearing 26,28 and eccentric body axis hole 30,32 2 external gears 12,14 are installed.
Be formed with respectively a plurality of (in this example 8: with reference to figure 3) penetration hole 34,36 on each external gear 12,14.Be inserted with in the penetration hole 34,36 and be enclosed within sold inside the country 40 on the interior roller 38.
The outside diameter d 1 of interior roller 38 is only than 2 times (existence is equivalent to the gap S1 of 2 δ e) of penetration hole 34,36 internal diameter (internal diameter with 34B of sizing section of even internal diameter described later) D1 small eccentricity amount δ e.Being made as and putting interior roller 38 sold inside the country 40 is to reach " between the periphery of interior roller 38 and the penetration hole 34,36 " for sold inside the country 40 be scattered in external gear 12,14 slip " be sold inside the country 40 and interior week of interior roller 38 between " that will be original, thus acquisition sliding properties more smoothly.
Such as present embodiment when sold inside the country 40 covers have interior roller 38, interior roller 38 is equivalent to " the pin-shaped parts that contact with the penetration hole of external gear ", but also can be regarded as with sold inside the country 40 and consist of in couples " pin-shaped parts " (when cover does not have interior roller, sold inside the country own consist of " the pin-shaped parts that contact with the penetration hole of external gear ").Interior roller 38 inserts in external gears 12,14 the penetration hole 34,36, and with this penetration hole 34,36 contact in interior week, so do the action synchronous with external gear 12,14 rotation composition.To describe in detail in the back penetration hole 34,36 structure.
Sold inside the country 40 are pressed into and are fixed in the lip part 42A of output shaft 42.
In addition, 2 external gears 12,14 being set mainly is to keep spin balancing in order to realize the increase of transfer capacity, to reach by changing eccentric phase.Be provided with external tooth 12A, the 14A of trochoid profile of tooth in external gear 12,14 periphery.
In this mode of execution, external gear 12,14 the outer number of teeth are " 21 ", and the interior number of teeth of internal gear 16 (radical of export trade 16B and outer roller 16C) is " 22 ".That is, external gear 12,14 the outer number of teeth are less than the interior number of teeth (only lacking 1 in this example) of internal gear 16 a little.
At this, enter before the specifying of external gear 12,14 penetration hole 34,36 structure, for the understanding that makes present embodiment is easier, the effect of the power-transmission system of this Eccentrically rocking type reduction gear of simple declaration G1.
If the rotation of the motor drive shaft 18 by motor M1 makes input shaft 20 rotations that become one with this motor drive shaft 18 1 time, the eccentric body 22,24 rotations that form on the cartridge 25 that then links with this input shaft 20 1 time.If eccentric body 22,24 is rotated, then external gear 12,14 through roller bearing 26,28 and internal gear 16 interior Nogami swing when closing.
Like this, pin-shaped parts of interior roller 38() and the rotation composition of penetration hole 34,36 in order to take out external gear 12,14 and to swing, slide when mutually pressing with stronger power.Therefore, for guaranteeing penetration hole 34,36 required intensity and hardness, use the hard material of Quenching Treatment at external gear 12,14.If in other words, this expression have to be formed at penetration hole 34,36 on this hard material carry out by sintered carbide tools cutting, use the grinding (perhaps cutting edge reconditioning) etc. of extremely hard emery wheel to expend time in and the fine finishing of cost is processed.
On the other hand, this penetration hole 34,36 becomes the important structure important document of the core of the power-transmission system of undertaking this Eccentrically rocking type reduction gear G1, therefore spreaded all over external gear 12,14 entire axial length Lt with uniform internal diameter in the past and critically formed (be interpreted as conversely speaking, and need spread all over total length Lt with uniform internal diameter and high-accuracy formation).Therefore, become the main cause that external gear 12 in the past, 14 cost rise.
But the inventor considers discovery again, and penetration hole 34,36 becomes contacting of recessed surface and nonreentrant surface with contacting of interior roller 38.Therefore, be not for example external gear 12,14 with the outer roller 16C of internal gear 16() contact or eccentric body 22,24 with roller bearing 26,28 contact contacting of such nonreentrant surface and nonreentrant surface, its face is pressed lower.And, even with become the eccentric body axis hole 30 that contact of identical recessed surface with nonreentrant surface, 32 with roller bearing 26,28 contact and compare, also because the footpath of recessed surface and nonreentrant surface is poor less, favourable on area of contact, also than being easier to guarantee lubricant oil.Therefore, among the speed reducer G1 of single (identical), this penetration hole 34,36 with interior roller 38 between contact in (or on life-span) on the intensity and compare with contacting of other parts, relatively have a surplus, even may not necessarily spread all over penetration hole 34,36 total length Lt guarantees contacting part, can (not make it reduce ground) to keep the intensity of speed reducer G1 integral body yet.In the present embodiment, according to this opinion, with the following structure formation external gear 12 that illustrates, 14 penetration hole 34,36.
With reference to figure 1, the related external gear 12 of present embodiment, 14 penetration hole 34,36 deliberately form its internal diameter in the axial direction unevenly, only axial part (part that internal diameter is less) are applied to the transmission of power with interior roller (pin-shaped parts) 38.In addition, comprise the description of this Fig. 1, the penetration hole 34,36 among each figure has been described the variation of this internal diameter turgidly, in order to can easily understand the Axial changes of internal diameter.
In this mode of execution, penetration hole 34,36 has internal diameter in axial central authorities and evenly is the 34B of sizing section, the 36B of D1 (constant).And, be provided with the large-diameter portion that internal diameter linarity ground is extended to D2(D1＜D2) gradually at the axial two ends of the 34B of this sizing section, 36B.In this mode of execution, the internal diameter in the penetration hole 34,36 is constant to be the 34B of sizing section of D1, the axial range L1 of 36B, with the summation 2L2 roughly the same (L1 ≈ 2L2) of the axial range L2 of larger 2 large-diameter portion 34A, the 36A of internal diameter.That is, single external gear 12(or 14), the axial range L1 of each 34B of sizing section, 36B and large-diameter portion 34A(or 36A) axial range 2L2 roughly the same.In addition, symbol 54 is restriction external gear 12,14 axially movable positioning element.
The effect of this mode of execution and external gear 12,14 manufacturing process are closely related, therefore below, with this penetration hole 34,36 manufacture method explanation the effect of this mode of execution is described together.
That is, at first, (a) on the raw material 12R1 of the external gear 12 of cure process such as quenching, form (8) as the foramen primum 34R on the basis of penetration hole 34 with uniform inside diameter D 3.(Fig. 4 (A)).
Then, (b) make the internal diameter of the axial part (being axial two ends specifically) of each foramen primum 34R become gradually large footpath more more to become large mode linarity ground near the internal diameter of end, form large-diameter portion 34Ra(Fig. 4 (B) at the position of the axial range L6 at these axial two ends).Up to the present operation for also not the raw material 12R1 of external gear wheel 12 carry out the processing in the moment of cure process.Therefore, can by cheaply usually instrument (omitting diagram) extremely easily carry out.
In addition, in fact, before or after this (b) operation, also has the operation that forms external tooth (trochoid profile of tooth) 12A at the raw material 12R1 of external gear 12.
And, (c) after all foramen primum 34R form large-diameter portion 34Ra, the raw material 12R1 of this external gear 12 is carried out based on the cure process of quenching, thereby is made as hard raw material 12R2(Fig. 4 (C)).This cure process also is not particularly limited in quenching, can use in the past known various sclerosis mode.
At last, (d) the part 34Rb that does not become large footpath among 8 foramen primum 34R that are formed with large-diameter portion 34Ra at axial two ends being carried out fine finishing equably processes to inside diameter D 1(Fig. 4 (D)).Thus, obtain the external gear 12 of finished product as the 34B of sizing section with uniform inside diameter D 1.In addition, not carrying out the large-diameter portion 34Ra that fine finishing processes directly retains as final large-diameter portion 34A.
The object lesson of processing as herein fine finishing is such as the cutting of using sintered carbide tools etc. being arranged, using the grinding (perhaps cutting edge reconditioning) of the emery wheel that is made of extremely hard and fine abrasive particle etc.Before processing is processed, insert (cure process) operation of quenching and be because if carrying out carrying out Quenching Treatment after the fine finishing processing, then can't keep accurately size as product because of thermal strain.
But, in this mode of execution, only the part (the uniformly part of the 34Rb of sizing section of inside diameter D 3) that does not become large footpath among the foramen primum 34R is carried out this fine finishing and process (fine finishing is processed different in the 34B of sizing section and large-diameter portion 34A), therefore carry out fine finishing with the penetration hole 34 that spreaded all over external gear, 36 total length Lt in the past and process and compare, shorten natural process time.And machining range is less, so the wearing and tearing also less (life of instrument) of sintered carbide tools etc.
Can say the external gear that affects this kind Eccentrically rocking type reduction gear most manufacture cost be fine finishing processing cost (specifically, for example being the replacement cost of superhard cutting blade) when forming a plurality of penetration hole.Therefore, owing to per 1 external gear 12,14 amount of finish reduce the reduction that the increase that makes tool life directly involves external gear 12,14 manufacture cost.
As a result of, can not make external gear 12,14 or the strength decreased of speed reducer G1 integral body, namely under the state of fully keeping as the strength characteristics of external gear 12, necessity of 14, shorten process time, and reduce manufacture cost.
The related external gear 12 of this mode of execution, 14 has large-diameter portion 34A, the 36A of the internal diameter (maximum inner diameter D2) larger than the inside diameter D 1 of the 34B of sizing section, the 36B of this penetration hole 34,36 axial central authorities at axial two ends, therefore carry out with the slip (transmission of power) of interior roller 38 34B of sizing section, the 36B by this penetration hole 34,36 " axially central ".Therefore, external gear 12,14 and internal gear 16 De Nogami close or external gear 12,14 and roller bearing 26,28 rotation in to produce the possibility of larger moment etc. less.
And, penetration hole 34,36 has the inside diameter D 1 constant 34B of sizing section, 36B, and constitute internal diameter from the axial direction " linarity ground " expansion of the 34B of this sizing section, 36B, therefore the processing of large- diameter portion 34A, 36A is easier to, even and in the situation that external gear 12,14 is wanted relative axle center O1 inclination because of some reason, also can further alleviate axial end portion 34B1, the 36B1 that stress concentrates on the 34B of sizing section, 36B.
In addition, among the present invention, the concrete shape in the interior week of penetration hole (variation pattern of internal diameter) is not limited to above-mentioned example.The variation of the concrete shape in the interior week of penetration hole shown in Fig. 5～Fig. 8.
In the variation shown in Fig. 5, external gear 60,62 penetration hole 64,66 64B of sizing section, the 66B that have constant inside diameter D 5 in axial central authorities, and be formed with large-diameter portion 64A, the 66A of constant inner diameter D6 from the 64B of this sizing section, 66B at axial two ends.In this structure, the formation of penetration hole 64,66 large- diameter portion 64A, 66A than before mode of execution easier.Other structures are identical with before mode of execution.
In the variation shown in Fig. 6, external gear 70,72 penetration hole 74,76 be not in axial central authorities but the 74B of sizing section, the 76B that have constant inside diameter D 7 in axial one distolateral end.And, enlarging large-diameter portion 74A, the 76A that forms " single " from the 74B of this sizing section, 76B towards another distolateral straight line shape ground, end, the end of opposite side is made as maximum inner diameter D8.Therefore, when forming large-diameter portion 74A, 76A, need not to carry out the turn-over of external gear 70,72 raw material etc., can simplify the formation operation of large-diameter portion 74A, 76A.And, in this variation, compare the wider (L5＜L6) of forming of the axial range L6 of large-diameter portion 74A, 76A that internal diameter is larger with the 74B of sizing section, the axial range L5 of 76B of penetration hole 74,76 constant inside diameter D 7.Therefore, can make the range L 5 that to carry out the accurately machined sizing 74B of section, 76B more less than before 2 examples, and obtain very significantly the effect of present embodiment.
In addition, variation such as this Fig. 6, the axial range L5 that should carry out the accurately machined sizing 74B of section, 76B suppresses to be less result, penetration hole 74,76 the 74B of sizing section, 76B and the largest face between the interior roller (pin-shaped parts) 38 press P1 to rise, and outer roller 16C greater than internal gear 16(sometimes causes for example becoming) with external gear 70,72 between largest face pressure P2.But (P1＞P2), this situation also seldom can become on the intensity of this speed reducer G1 or the bottleneck on the life-span (can continue fully to keep bulk strength or the life-span of speed reducer G1 in the past) even become this type of situation.This is because the contact segment lubricity of penetration hole 74,76 the 74B of sizing section, 76B and interior roller 38 is better than internal gear 16 and external gear 70,72 contact segment, and machining accuracy is also higher.
In the variation shown in Fig. 7, by suppressing as the scope of large-diameter portion 84A, 86A to such an extent that less reduction with near the intensity external gear 80,82 the penetration hole 84,86 is suppressed at inferior limit.For example, when external gear 80,82 axial width L7 set so greatly originally etc., can be so the axial range L8 of large-diameter portion 84A, 86A be formed axial range L9 less than the 84B of sizing section, 86B.However, even as long as large-diameter portion 84A, 86A are formed a small part, just can correspondingly obtain the effect of shortening time and cost.
In addition, in the variation of this Fig. 7, when only being made as penetration hole 84, a distolateral easiness of guaranteeing to process of 86, the forming part of large-diameter portion 84A, 86A 2 external gears 80 of assembling,, make (internal diameter is constant) sizing 84B of section, 86B mutually opposed at 82 o'clock.Thus, become and be provided with symmetrical 2 external gears 80,82 in the axial direction completely, can cancel out each other to a great extent and internal gear 16 between the thrust that occurs.
In the variation of Fig. 8, form off and on a plurality of (being 2 places in this variation) large-diameter portion 94A, 96A.When forming so off and on large- diameter portion 94A, 96A, external gear 90,92 can be in penetration hole 94, axial roughly whole transmission of power of carrying out with interior roller 38 of 96, can prevent that stress from only concentrating on this penetration hole 94,96 axial part.And, for example, during assembling, become and this large- diameter portion 94A, 96A can also be applied flexibly as the lubricating grease reservoir by coating lubricating grease in this large- diameter portion 94A, 96A.
In addition, in above-mentioned mode of execution or the variation, all be made as stepped ground or consist of the boundary part of sizing section and large-diameter portion with 2 straight lines intersection each other, but certainly also can link this sizing section and large-diameter portion with for example slightly round curve, on the viewpoint of " prevent stress from concentrating ", preferred the method on the contrary.
And, in the above-mentioned mode of execution, all show the structure example that interior roller is arranged at sold inside the country cover.When sold inside the country cover has interior roller, because the load in (directly comparing with the structure that penetration hole slides with sold inside the country) slip surface is less, therefore can more significantly reduce the constant sizing section of internal diameter namely needs to carry out accurately machined part, therefore can obtain more significantly effect of the present invention.Yet the present invention can also be applicable to the speed reducer of sold inside the country type of directly sliding at penetration hole, just can access corresponding effect as long as form a little large-diameter portion.
And, in the above-mentioned mode of execution, although have the structure of 2 external gears of assembling,, Eccentrically rocking type reduction gear involved in the present invention is not defined in 2 with the number of external gear, can be more than 1 or 3.Assembling can be made as 3 and all be made as identical shaped external gear during 3 external gears, also can make the shape of penetration hole of external gear in both sides and central different.When being that axially the external gear of central authorities usually becomes and is difficult to guarantee good lubricity when having the Eccentrically rocking type reduction gear of 3 external gears, therefore compare the scope that can reduce large-diameter portion with the external gear of both sides, or only make the inapplicable the present invention of central external gear.That is, the present invention similarly (or symmetrically) be applicable to all external gears.
In addition, in the above-mentioned mode of execution, internal gear has been shown to be fixed, when pin-shaped parts are inserted into the penetration hole of external gear, with the synchronous example that revolves round the sun of the rotation of this external gear, but the present invention also can be applied to and the rotation of the synchronous pin-shaped parts of the rotation composition of external gear through penetration hole restriction external gear, the deceleration of the eccentric oscillating-type that the so-called framework that internal gear is rotated as output block is rotary-type.
In addition, the manufacture method of external gear is not limited to the method for above-mentioned mode of execution, as long as it is inhomogeneous in the axial direction finally to become the internal diameter of penetration hole, and then can be with any method manufacturing.
The application advocates the preference based on the Japanese patent application of on March 21st, 2012 application 2012-064593 number.The full content of its application is applied in this specification by reference.
Claims (7)
1. Eccentrically rocking type reduction gear, it possesses: external gear; The internal gear that connects in when this external gear swings; And pin-shaped parts, these pin-shaped parts insert in the penetration hole that arranges on the described external gear, and it is synchronous to contact the rotation composition of the described external gear of interior Zhou Bingyu of this penetration hole, and described Eccentrically rocking type reduction gear is characterised in that,
The internal diameter of described penetration hole is inhomogeneous in the axial direction.
2. Eccentrically rocking type reduction gear as claimed in claim 1 is characterized in that,
The axial two ends of described penetration hole are formed with internal diameter greater than the large-diameter portion of the axial central authorities of this penetration hole.
3. Eccentrically rocking type reduction gear as claimed in claim 1 or 2 is characterized in that,
Described penetration hole has the constant sizing section of internal diameter, and internal diameter enlarges on linarity ground in the axial direction from this sizing section.
4. such as each described Eccentrically rocking type reduction gear in the claim 1～3, it is characterized in that,
Described penetration hole has the constant sizing section of internal diameter, and the axial range of the larger part of internal diameter is greater than the axial range of this sizing section.
5. such as each described Eccentrically rocking type reduction gear in the claim 1～4, it is characterized in that,
Described penetration hole has the constant sizing section of internal diameter and internal diameter greater than the large-diameter portion of sizing section,
Fine finishing is processed in this sizing section and large-diameter portion different.
6. such as each described Eccentrically rocking type reduction gear in the claim 1～5, it is characterized in that,
Largest face between the interior week of described penetration hole and the described pin-shaped parts is installed with to be decided to be greater than the largest face between described internal gear and the external gear and presses.
7. the manufacture method of the external gear of an Eccentrically rocking type reduction gear, this Eccentrically rocking type reduction gear possesses: external gear; The internal gear that connects in when this external gear swings; And pin-shaped parts, these pin-shaped parts insert in the penetration hole that arranges on the described external gear, and it is synchronous to contact the rotation composition of the described external gear of interior Zhou Bingyu of this penetration hole, and the manufacture method of the external gear of described Eccentrically rocking type reduction gear is characterised in that, comprises:
Form the operation of the foramen primum of described penetration hole at the raw material of described external gear;
The internal diameter of the axial part of this foramen primum is expanded as the operation in large footpath;
This part is become after the operation in large footpath, the raw material of this external gear is carried out the operation of cure process;
After this cure process, the part that does not become large footpath in the described foramen primum is carried out the operation that fine finishing is processed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-064593 | 2012-03-21 | ||
| JP2012064593A JP5816582B2 (en) | 2012-03-21 | 2012-03-21 | Eccentric oscillation type speed reducer and manufacturing method of external gear |
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| Publication Number | Publication Date |
|---|---|
| CN103322132A true CN103322132A (en) | 2013-09-25 |
| CN103322132B CN103322132B (en) | 2016-08-03 |
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| CN201310078209.5A Active CN103322132B (en) | 2012-03-21 | 2013-03-12 | Eccentrically rocking type reduction gear and the manufacture method of external gear thereof |
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| JP (1) | JP5816582B2 (en) |
| CN (1) | CN103322132B (en) |
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| CN109996974A (en) * | 2016-12-05 | 2019-07-09 | 住友重机械工业株式会社 | Eccentric oscillation gear device |
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| CN101939562A (en) * | 2008-02-19 | 2011-01-05 | 住友重机械工业株式会社 | Reduction gear |
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| CN1405469A (en) * | 2001-09-13 | 2003-03-26 | 住友重机械工业株式会社 | Outer gear manufacture method |
| US20070107546A1 (en) * | 2003-03-31 | 2007-05-17 | Ts Corporation | Needle Bearing and Speed Reducer Using The Needle Bearing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747698A (en) * | 2013-12-27 | 2015-07-01 | 住友重机械工业株式会社 | A reduction gear |
| CN104948696A (en) * | 2014-03-31 | 2015-09-30 | 住友重机械工业株式会社 | Eccentric swinging type reducer device and method for forming a pin member of the same |
| CN104948696B (en) * | 2014-03-31 | 2017-03-15 | 住友重机械工业株式会社 | Eccentric oscillating-type deceleration device and its manufacture method of pin member |
| CN106195219A (en) * | 2014-08-11 | 2016-12-07 | 住友重机械工业株式会社 | deceleration device |
| CN109996974A (en) * | 2016-12-05 | 2019-07-09 | 住友重机械工业株式会社 | Eccentric oscillation gear device |
| CN109996974B (en) * | 2016-12-05 | 2022-02-25 | 住友重机械工业株式会社 | Eccentric oscillating gear device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5816582B2 (en) | 2015-11-18 |
| CN103322132B (en) | 2016-08-03 |
| JP2013194869A (en) | 2013-09-30 |
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