CN107477151A - Inside gear drive mechanism - Google Patents

Inside gear drive mechanism Download PDF

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Publication number
CN107477151A
CN107477151A CN201610404869.1A CN201610404869A CN107477151A CN 107477151 A CN107477151 A CN 107477151A CN 201610404869 A CN201610404869 A CN 201610404869A CN 107477151 A CN107477151 A CN 107477151A
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CN
China
Prior art keywords
tooth
lubrication groove
foreign steamer
drive mechanism
gear drive
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Withdrawn
Application number
CN201610404869.1A
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Chinese (zh)
Inventor
不公告发明人
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610404869.1A priority Critical patent/CN107477151A/en
Priority to US15/767,521 priority patent/US20180291996A1/en
Priority to CA3001644A priority patent/CA3001644A1/en
Priority to PCT/IB2016/001459 priority patent/WO2017064549A2/en
Priority to JP2018519836A priority patent/JP2018530721A/en
Priority to KR1020187013515A priority patent/KR20180069853A/en
Priority to EP16816732.8A priority patent/EP3364071A2/en
Publication of CN107477151A publication Critical patent/CN107477151A/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear

Abstract

The invention provides a kind of Inside gear drive mechanism, including：Foreign steamer, the foreign steamer inward flange are provided with the circle-arc tooth of the first quantity, and the circle-arc tooth of first quantity is set around the foreign steamer inward flange；Lubrication groove, the lubrication groove outward flange are provided with the tooth of the second quantity, and the tooth of second quantity is set around the lubrication groove outward flange, the m>n；Eccentric rotary device, the eccentric rotary device enable to the lubrication groove arranged off-centre；Wherein, any one connection power intake in the foreign steamer, lubrication groove and eccentric rotary device, any another one in the foreign steamer, lubrication groove and eccentric rotary device connects clutch end, to pass through the engaged transmission transmission power between foreign steamer and lubrication groove；And wherein, the design of flute profile in the lubrication groove cause lubrication groove and foreign steamer engaged transmission whenever, a part in the tooth of second quantity is engaged or contacted with the part in the circle-arc tooth of first quantity, and the remainder of the tooth of second quantity and the circle-arc tooth of first quantity depart from.

Description

Inside gear drive mechanism
Technical field
The present invention relates generally to Inside gear drive mechanism.
Background technology
This part is to provide for the background of the invention being described in detail in claims or environment.Here description can wrap The design that may be sought is included, but needs not be the design for being previously conceived or having sought.Therefore, unless otherwise indicated herein, exist Content described in this part is not the prior art of present specification and claims, and does not recognize to include Content in this section is prior art.
Compared with external toothing transmission mechanism, Inside gear drive organization volume is smaller, and single-stage driving speed is real than big, and easily Existing multiple tooth engagement.For Inside gear drive mechanism, when interior foreign steamer tooth difference be 1 when, transmission speed ratio be it is maximum, But such number of teeth difference uses traditional involute gear, interference be present between interior foreign steamer, causes external gear teeth to be blocked with the interior gear teeth, So that foreign steamer can not rotate with lubrication groove.Therefore, for Inside gear drive mechanism, need to solve when realizing big transmission speed ratio Interference problem between certainly interior foreign steamer.
Mainly there are harmonic drive mechanism and Cycloidal pin-wheel drive mechanism in the current relatively broad Inside gear drive mechanism used Deng.Harmonic drive mechanism is driven using flexbile gear as external gear, is engaged by foreign steamer in the deformation solution of external gear dry Relate to, but the manufacture difficulty of flexbile gear is larger, output torque is small so that harmonic drive mechanism is difficult to widely use.
Cycloidal pin-wheel drive mechanism, as lubrication groove, passes through the rolling on the cycloid profile in Cycloidal Wheel and foreign steamer using Cycloidal Wheel Pin engagement is driven, and cycloid profile is that (that is, one circle when being rolled in a boning out, one pinpoints cycloid on circumference Track) or cycloid after repairing type.Using cycloid profile can realize the engagement of interior foreign steamer without interference, but in interior foreign steamer During relative rotation, the profile in Cycloidal Wheel engages with the needle roller on foreign steamer all the time.Such engagement system causes inside and outside There is larger frictional force between wheel.In order to reduce the frictional force, generally adopted on the needle roller on Cycloidal pin-wheel drive mechanism foreign steamer With needle guard, the sliding friction of needle roller is become to the rolling friction of needle guard, but the arrangement of stress makes among the support of needle roller both ends Deformation is easily bent during needle roller stress so that cycloidal planetary gear speed reducer volume increases, and bearing capacity is small.
Due to problem above be present, either harmonic drive mechanism or Cycloidal pin-wheel drive mechanism can not all meet needs Small volume, large speed ratio, the application field of high-power or high pulling torque output.
The content of the invention
It is an object of the invention to provide a kind of Inside gear drive mechanism, and it can solve the problem that existing Inside gear drive mechanism deposits The problem of.
According to the first aspect of the invention, the invention provides a kind of Inside gear drive mechanism, including foreign steamer and lubrication groove.Outside The inward flange of wheel is provided with the circle-arc tooth of the first quantity, and the circle-arc tooth of first quantity is set around the inward flange of the foreign steamer Put.The outward flange of lubrication groove is provided with the tooth of the second quantity, and the tooth of second quantity is set around the outward flange of the lubrication groove, institute State m>n.Each tooth in lubrication groove includes：One tooth top, the shape of tooth top be designed in lubrication groove and foreign steamer engaged transmission, tooth top Do not contacted with the circle-arc tooth on foreign steamer at any time；And two tooth waists, it is connected to the both sides of tooth top, the shape of tooth waist Shape is designed to that tooth waist is periodically contacting and separating with the circle-arc tooth on foreign steamer, so that institute in lubrication groove and foreign steamer engaged transmission State and realize multiple tooth in the case of without interference between the tooth in lubrication groove and the circle-arc tooth on foreign steamer while engage.Outside the lubrication groove Also include several tooth roots on edge, two adjacent teeth are connected.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, tooth root is one section of curve or straight line, tooth top are One section of curve or straight line, and tooth waist are smooth composite curves, its by one kind in curve, straight line, circular arc and line transect or A variety of compositions.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, a part for tooth waist is curve, and the curve is When lubrication groove is with foreign steamer engaged transmission, a series of meshing point shapes of the circle-arc tooth in the mesh regional of setting on the interior gear teeth and foreign steamer Into one section of envelope, to cause multiple tooth in the mesh regional of setting while engagement to have no interference, and in the region of engagement of setting The overseas interior gear teeth and the circle-arc tooth on foreign steamer are contactless or engage.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, the length of envelope and taken in the position of tooth waist Certainly quantity and engagement section are engaged in the tooth in desired lubrication groove and the circle-arc tooth on foreign steamer.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, curve or straight line and the institute of the tooth top are formed The envelope for stating tooth waist is smoothly connected by easement curve.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, can be formed the curve of the tooth root or Straight line is connected with the envelope of the tooth waist by easement curve and/or straight smooth so that tooth root at any time with Circle-arc tooth on foreign steamer does not contact；It is also possible that the envelope for the curve and the tooth waist for forming the tooth root is same root Envelope.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, in addition to eccentric rotary device, the bias Tumbler can drive the lubrication groove, with cause the lubrication groove relative to the foreign steamer inward flange carry out eccentric center translation and/or Rotate.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, in times of the lubrication groove and foreign steamer engaged transmission When to wait, the part in the tooth of second quantity is engaged or contacted with the part in the circle-arc tooth of first quantity, And the remainder of the tooth of second quantity and the circle-arc tooth of first quantity depart from.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, (1,2,3... is natural by the m-n=a a ∈ Number), when the eccentric rotary device rotates a cycle, lubrication groove rotates the angle of a tooth, and the direction of rotation of lubrication groove with it is inclined Heart tumbler rotation direction is opposite.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, the circle-arc tooth of the first quantity on the foreign steamer For needle roller.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, the offset d of eccentric rotary device is more than r/ 2, wherein r are needle roller radiuses.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, the circle-arc tooth of the first quantity on the foreign steamer For needle roller；In the tooth of lubrication groove and all positions of engagement of needle roller, any point on needle roller center to corresponding tooth root away from From the radius more than or equal to needle roller.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, the inward flange of the foreign steamer is pacified provided with needle roller Tankage, the radius of needle roller groove are identical with needle roller radius.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, the both ends of needle roller are supported by needle roller centring ring, Needle roller is positioned in the needle roller groove of foreign steamer, needle roller can rotate in needle roller groove.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, in the lubrication groove and foreign steamer engaged transmission, Each tooth top in the lubrication groove is not in contact with circle-arc tooth.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, in the lubrication groove and foreign steamer engaged transmission, Each tooth top and each tooth root in the lubrication groove are not in contact with circle-arc tooth.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, a week is rotated in the eccentric rotary device During phase, each tooth and the circle-arc tooth on the foreign steamer of the lubrication groove at least depart from once.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, the Inside gear drive mechanism is provided with least four The lubrication groove of piece parallel arrangement.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, in times of the lubrication groove and foreign steamer engaged transmission When wait, the quantity that the circle-arc tooth of first quantity engages with the tooth of second quantity is less than the total quantity of the circle-arc tooth 60%.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, the Inside gear drive mechanism also includes planet Frame, the lubrication groove is arranged on the planet carrier, to transmit power between lubrication groove and planet carrier.
In above-mentioned Inside gear drive mechanism according to a first aspect of the present invention, the planet carrier is arranged in the foreign steamer Portion, and on the eccentric rotary device.
According to the second aspect of the invention, the invention provides a kind of Inside gear drive mechanism, including：Foreign steamer, it is described outer The circle-arc tooth that inward flange is provided with the first quantity is taken turns, the circle-arc tooth of first quantity is set around the foreign steamer inward flange；It is interior Wheel, the lubrication groove outward flange are provided with the tooth of the second quantity, and the tooth of second quantity is set around the lubrication groove outward flange, institute State m>n；Eccentric rotary device, the eccentric rotary device enable to the lubrication groove arranged off-centre；Wherein, the foreign steamer, interior Any one connection power intake in wheel and eccentric rotary device, appointing in the foreign steamer, lubrication groove and eccentric rotary device Another one of anticipating connection clutch end, to transmit power by the engaged transmission between foreign steamer and lubrication groove；And wherein, in described The design of flute profile on wheel cause lubrication groove and foreign steamer engaged transmission whenever, the part in the tooth of second quantity Engage or contact with the part in the circle-arc tooth of first quantity, and the remainder of the tooth of second quantity and institute The circle-arc tooth for stating the first quantity departs from.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, each tooth in lubrication groove includes：One tooth top, The shape of tooth top is designed to that tooth top does not connect with the circle-arc tooth on foreign steamer at any time in lubrication groove and foreign steamer engaged transmission Touch；And two tooth waists, the both sides of tooth top are connected to, the shape of tooth waist is designed in lubrication groove and foreign steamer engaged transmission, Tooth waist is periodically contacting and separating with the circle-arc tooth on foreign steamer, between the circle-arc tooth on the tooth and foreign steamer in the lubrication groove Realize multiple tooth while engage in the case of without interference；Also include several tooth roots on the outward flange of the lubrication groove, by adjacent two Individual tooth is connected.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, tooth root is one section of curve or straight line；Tooth top is One section of curve or straight line；And tooth waist is smooth composite curve, its by one kind in curve, straight line, circular arc and line transect or A variety of compositions.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, a part for the tooth waist is curve, the song When line is lubrication groove and foreign steamer engaged transmission, a series of engagements of the circle-arc tooth in the mesh regional of setting on the interior gear teeth and foreign steamer One section of envelope that point is formed, to cause multiple tooth in the mesh regional of setting while engagement to have no interference, and nibbling in setting It is contactless or engage to close the outer interior gear teeth in region and the circle-arc tooth on foreign steamer.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, the length of envelope and taken in the position of tooth waist Certainly quantity and engagement section are engaged in the tooth in desired lubrication groove and the circle-arc tooth on foreign steamer.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, curve or straight line and the institute of the tooth top are formed The envelope for stating tooth waist is smoothly connected by easement curve.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, can be formed the curve of the tooth root or Straight line is connected with the envelope of the tooth waist by easement curve and/or straight smooth so that tooth root at any time with Circle-arc tooth on foreign steamer does not contact；It is also possible that the envelope for the curve and the tooth waist for forming the tooth root is same root Envelope.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, (1,2,3... is natural by the m-n=a a ∈ Number)；When the eccentric rotary device rotates a cycle (360 degree), lubrication groove rotates the angle of a tooth, and the rotation of lubrication groove Direction is opposite with eccentric rotary device rotation direction.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, the circle-arc tooth of the first quantity on the foreign steamer For needle roller.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, the circle-arc tooth of the first quantity on the foreign steamer For needle roller, in the tooth of lubrication groove and all positions of engagement of needle roller, any point on needle roller center to corresponding tooth root away from From the radius more than or equal to needle roller.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, the offset d of eccentric rotary device is more than r/ 2, wherein r are needle roller radiuses.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, the inward flange of the foreign steamer is pacified provided with needle roller Tankage, the radius of needle roller groove are identical with needle roller radius.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, the both ends of the needle roller are propped up by needle roller centring ring Support, needle roller is positioned in the needle roller mounting groove of foreign steamer, needle roller can rotate in needle roller mounting groove.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, nibbled in the lubrication groove and the circle-arc tooth on foreign steamer When closing transmission, each tooth top in the lubrication groove is not in contact with circle-arc tooth.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, in the lubrication groove and foreign steamer engaged transmission, Each tooth top and each tooth root in the lubrication groove are not in contact with circle-arc tooth.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, a week is rotated in the eccentric rotary device During phase, each tooth in the lubrication groove at least departs from once with the circle-arc tooth on the foreign steamer.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, the Inside gear drive mechanism is provided with least four The lubrication groove of piece parallel arrangement.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, in times of the lubrication groove and foreign steamer engaged transmission When wait, the quantity that first a plurality of circle-arc teeth engage with second plurality of pins is less than the total quantity of the circle-arc tooth 60%.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, the Inside gear drive mechanism also includes planet Frame, the lubrication groove is arranged on the planet carrier, to transmit power between lubrication groove and planet carrier.
In above-mentioned Inside gear drive mechanism according to a second aspect of the present invention, the planet carrier is arranged in the foreign steamer Portion, and on the eccentric rotary device.
According to the third aspect of the invention we, the invention provides a kind of lubrication groove, in interior engagement transmission mechanism and outer Take turns engaged transmission, the outward flange of the lubrication groove is provided with the tooth of the second quantity, for it is set on the inward flange of the foreign steamer The first quantity circle-arc tooth engaged transmission, the tooth of second quantity is set around the outward flange of the lubrication groove, wherein each Tooth includes：One tooth top, the shape of tooth top be designed in lubrication groove and foreign steamer engaged transmission, tooth top at any time with foreign steamer Circle-arc tooth do not contact；And two tooth waists, be connected to the both sides of tooth top, the shape of tooth waist be designed to lubrication groove with it is outer When taking turns engaged transmission, tooth waist is periodically contacting and separating with foreign steamer, so that in the feelings without interference between the lubrication groove and foreign steamer Realize multiple tooth under condition while engage；Also include several tooth roots on the outward flange of the lubrication groove, two adjacent teeth are connected.
In above-mentioned lubrication groove according to a third aspect of the present invention, tooth root is one section of curve or straight line, tooth top be one section of curve or Straight line, and tooth waist are smooth composite curves, and it is made up of the one or more in curve, straight line, circular arc and line transect.
In above-mentioned lubrication groove according to a third aspect of the present invention, a part for the tooth waist is curve, the curve be lubrication groove with During foreign steamer engaged transmission, the one of a series of meshing points formation of the circle-arc tooth in the mesh regional of setting on the interior gear teeth and foreign steamer Section envelope, to cause multiple tooth in the mesh regional of setting while engagement to have no interference, and it is interior outside the mesh regional of setting The gear teeth and the circle-arc tooth on foreign steamer are contactless or engage.
In above-mentioned lubrication groove according to a third aspect of the present invention, the length of envelope and depended in the position of tooth waist desired Lubrication groove on tooth and the circle-arc tooth on foreign steamer engage quantity and engagement section.
In above-mentioned lubrication groove according to a third aspect of the present invention, the curve of the tooth top or the bag of straight line and the tooth waist are formed Winding thread is smoothly connected by easement curve.
In above-mentioned lubrication groove according to a third aspect of the present invention, can be formed the curve of the tooth root or straight line with it is described The envelope of tooth waist is connected by easement curve and/or straight smooth so that tooth root at any time with the circle on foreign steamer Curved tooth does not contact；It is also possible that the envelope for the curve and the tooth waist for forming the tooth root is same root envelope.
Compared with existing Inside gear drive mechanism, according to the Inside gear drive mechanism of invention due to that can solve well The interference problem of interior foreign steamer, and the friction between interior foreign steamer is minimum, thus the small volume with transmission mechanism, speed than big and Output torque is big, and service life is grown, the advantages that transmission efficiency.
Brief description of the drawings
From detailed description below in conjunction with the accompanying drawings, the present invention will be more fully understood, wherein similar reference marker Similar element is represented, in accompanying drawing：
Fig. 1 is the Inside gear drive mechanism axial direction schematic diagram of the present invention；
Fig. 2 is the structural representation of the lubrication groove of the present invention；
Fig. 3 A are flute profile schematic diagram in the lubrication groove of the present invention；
Fig. 3 B are the needle roller mesh schematic representation on tooth and foreign steamer in the lubrication groove of the present invention；
Fig. 4 A-4F be according to the present invention Inside gear drive mechanism simplification mesh schematic representation, the figures illustrate During being rotated one week according to the eccentric rotary device of the Inside gear drive structure of the present invention, the rolling on the tooth and foreign steamer of lubrication groove How pin is engaged with separating；
Fig. 5 is that it illustrates in eccentric rotary according to the engaging structure figure of the simplification of the Inside gear drive mechanism of the present invention In two different turned positions of device, the contrast of the relevant position residing for lubrication groove；
Fig. 6 is according to the partial view of the foreign steamer of the present invention, and it illustrates the structure for being used to install needle roller on foreign steamer；
Fig. 7 A are the dimensional structure diagram according to the Inside gear drive mechanism of the present invention；
Fig. 7 B are the sectional view according to the Inside gear drive mechanism of the present invention.
Embodiment
The various embodiments of the present invention are described below with reference to the accompanying drawing for forming this specification part. Although it should be understood that in the present invention using the term for representing direction, such as "front", "rear", " on ", " under ", " left side ", The various example features and element of the description such as " right side " present invention, but herein using these terms merely for convenience of description Purpose, determined based on the example orientations shown in accompanying drawing.Because disclosed embodiment of this invention can be according to difference Direction set, so these represent directions term be intended only as illustrate and should not be considered as limiting.In the conceived case, The identical or similar reference used in the present invention refers to identical part.
Foreign steamer 102, lubrication groove 108 and eccentric rotary device are included according to the Inside gear drive mechanism of the present invention as shown in Figure 1 116.Eccentric rotary device 116 is arranged in inside lubrication groove 108, and foreign steamer 102 is arranged in outside lubrication groove 108.Inside gear drive mechanism Also including planet carrier 400 (Fig. 1 is not shown, and refers to Fig. 7 A and Fig. 7 B), lubrication groove 108 realizes transmission engagement by planet carrier 400, And with the integral arrangement of planet carrier 400 inside foreign steamer 102.By the interaction of these parts, foreign steamer 102 and interior can be realized The engaged transmission of wheel 108, so as to realize the purpose of deceleration or speedup.When needing to realize deceleration, eccentric rotary device 116 As high speed reader structure, low speed is exported using foreign steamer 102 or planet carrier 400, wherein low when needing to realize that foreign steamer 102 exports When fast, planet carrier 400 must be fixed；When needing to realize the output of the low speed of planet carrier 400, foreign steamer 102 must be fixed.When needing reality During existing speedup, foreign steamer 102 or planet carrier 400 are used as low speed input mechanism, and eccentric rotary device 116 is as speedy carding process mechanism. The Inside gear drive mechanism of the present invention can realize a variety of decelerations and speedup pattern.In order to preferably introduce the internal messing of the present invention Transmission mechanism, input at a high speed below in conjunction with being used as by eccentric rotary device 116, exported low speed by planet carrier 400 Deceleration mode is described.In this deceleration mode, the externally connected high speed motive force source of eccentric rotary device 116, planet Frame 400 realizes that low speed power exports, and foreign steamer 102 is then fixed.
As shown in figure 1, in the Inside gear drive mechanism according to the present invention, foreign steamer 102 has inward flange 103, inward flange 103 are provided with the circle-arc tooth 104 (i) (i=1,2 ..., m) of the first quantity.Lubrication groove 108 has outward flange 109, outward flange 109 It is provided with the tooth 110 (j) (j=1,2 ..., n) of the second quantity.The inward flange 103 of foreign steamer 102 forms receiving space, so that lubrication groove 108 can arranged off-centre wherein, and enable the circle-arc tooth of foreign steamer 102 and lubrication groove 108 by the first quantity on foreign steamer 102 The tooth 110 (j) (j=1,2 ..., n) of 104 (i) (i=1,2 ..., m) and the second quantity in lubrication groove 108 is engaged.
The circle-arc tooth 104 (i) (i=1,2 ..., m) of the first quantity on foreign steamer 102, which can take various forms, to be set Put, such as can be the circle-arc tooth directly designed on the inward flange of foreign steamer or installed on the inward flange of foreign steamer The part with needle roller shape, the shape that now needle roller protrudes from the inward flange of foreign steamer 102 is also circle-arc tooth shape.Except this with Outside, set circle-arc tooth to be all possible using any mode, if the shape of the circle-arc tooth can with lubrication groove 108 Tooth produces engagement, so that producing pin tooth engaged transmission between lubrication groove 108 and foreign steamer 102.According to one of the present invention Embodiment, the circle-arc tooth 104 (i) (i=1,2 ..., m) of the first quantity use the form of needle roller, and needle roller is arranged on foreign steamer 102 In the corresponding needle roller groove set on inward flange 103.The specific installation form of needle roller is discussed in detail further in connection with accompanying drawing 6. According to the example of the present invention, shown in Fig. 1 is the circle-arc tooth of voller pin formality, is described following for convenient, with " needle roller " " circle-arc tooth " is substituted embodiments of the invention to be described.
Still as shown in figure 1, the centre of lubrication groove 108 is provided with receiving space so that eccentric rotary device 116 to be contained in Wherein, eccentric rotary device 116 can bias lubrication groove 108.Lubrication groove 108 is arranged in bias by capacity eccentric bearing (referring to Fig. 7 B) On tumbler 116, several holes 126 are set, for lubrication groove is installed in the (not shown) of planet carrier 400 in lubrication groove 108.
When eccentric rotary device 116 rotates at a high speed, lubrication groove 108 realizes translation by eccentric rotary device 116, meanwhile, Due to the meshing relation and few teeth difference principle of the tooth on the needle roller on foreign steamer 102 and lubrication groove 108, lubrication groove 108, which is realized, to slowly run (rotation), then realize that low speed power exports by planet carrier.The quantity m of needle roller (i.e. circle-arc tooth) on foreign steamer is more than the interior gear teeth Quantity n, so as to formed few teeth difference engagement.Wherein, m-n=a.According to the example of the present invention, a=1.Certain a chooses it Its natural number is also possible.
The Inside gear drive mechanism of the present invention is designed by the flute profile in lubrication groove 108 so that even if when the needle roller on foreign steamer The quantity n differences of quantity m and interior gear teeth when be 1 (i.e. a tooth is poor), can also realize between lubrication groove and needle roller without interference. That is, realize multiple tooth between making the needle roller on the tooth and foreign steamer 102 in the lubrication groove 108 while nibble in the case of without interference Close, so as to realize the engaged transmission between lubrication groove and foreign steamer by the needle roller on the tooth in lubrication groove 108 and foreign steamer 102.And this The design of invention flute profile cause lubrication groove 108 and foreign steamer 102 relatively rotate whenever, the second quantity in lubrication groove 108 Some is engaged tooth 110 (j) (j=1,2 ..., n) with the needle roller on foreign steamer 102, and remainder and foreign steamer 102 On needle roller depart from.The flute profile in lubrication groove 108 of the present invention is discussed in detail with reference to Fig. 2 and Fig. 3 A.
The structural representation of lubrication groove of the present invention 108 as shown in Figure 2, tooth 110 (the j) (j of the second quantity in lubrication groove 108 =1,2 ..., n) set around the outward flange 109 of lubrication groove.Fig. 3 A are according to the flute profile schematic diagram of the lubrication groove of the present invention, the diagram The flute profile gone out in lubrication groove of the present invention.As shown in Figure 3A, each tooth has a tooth top 202 and is connected to the relative of tooth top 202 Two tooth waists 203 of both sides.Connected between two adjacent teeth by tooth root 201.Tooth root 201, tooth top 202 and tooth waist 203 together constitute the flute profile of the lubrication groove according to the present invention.
Fig. 3 B are the schematic diagram that is engaged with needle roller of the interior gear teeth according to the present invention, the figure shows a needle roller and with its phase Adjacent left side tooth is in engagement.
The shape of the tooth top 202 of the present invention is designed to that tooth top 202 is any in lubrication groove 108 and 102 engaged transmission of foreign steamer When (this point is described in detail further in connection with accompanying drawing 4A-4G) is not contacted with needle roller.Therefore, such as Fig. 3 A and Fig. 3 B Shown, tooth top 202 is designed as one section of curve or straight line.As an example, as shown in Fig. 2 tooth top 202 is designed as and lubrication groove One section of concentric circular arc of 108 center of circle, that is to say, that the tooth top 202 with teeth in lubrication groove 108 is all located at same with lubrication groove 108 On one circle of the heart.
And the shape of tooth waist 203 is then designed to when lubrication groove 108 and foreign steamer 102 relatively rotate, tooth waist 203 and needle roller cycle Property it is contacting and separating, so as to be realized between the needle roller on the tooth and foreign steamer 102 in the lubrication groove 108 in the case of without interference It is multiple tooth to engage simultaneously, so as to the passing power between lubrication groove 108 and foreign steamer 102.Therefore, tooth waist 203 be designed as it is smooth compound Curve, it is made up of the one or more in curve, straight line, circular arc and line transect.Wherein, wherein one of tooth waist 203 It is divided into pitch curve 210, for being engaged with needle roller.According to one embodiment of present invention, when needle roller and lubrication groove 108 are carried out During engagement, needle roller is only in contact with the pitch curve 210 on tooth waist 203, without (this that be in contact with the other parts of tooth waist 203 A little it is described in detail further in connection with accompanying drawing 4A-4G).As an example, pitch curve 210 is a kind of envelope, When it is that lubrication groove 108 is made translation and rotated, the one of the interior gear teeth and needle roller in the mesh regional (i.e. pitch curve region) of setting One section of full curve that serial meshing point is formed, to cause multiple tooth in the mesh regional of setting while engagement to have no interference, and The interior gear teeth and needle roller are contactless outside the mesh regional of setting or engage.The length of envelope and depend on institute in the position of tooth waist The desired interior gear teeth engage quantity and engagement section with needle roller.
The tooth root 201 of the present invention is also configured as one section of circular curve or straight line.In lubrication groove 108 and the engaged transmission of foreign steamer 102 When, tooth root 201 of the invention can contact with the needle roller on foreign steamer 102, can also not contact therewith, this depend on needle roller with it is interior The quantity and engagement section that the gear teeth engage simultaneously.When root position is covered in engagement section, tooth root 201 engages with tooth waist 203 Curve 210 is same root envelope, and now the pitch curve 210 of tooth root 201 and tooth waist 203 all connects with the needle roller on foreign steamer 102 Touch.When root position is not covered in engagement section, tooth root 201 passes through one section of easement curve and/or straight line 214 and adjacent teeth waist 203 envelope (pitch curve 210) is smoothly connected, and now tooth root 201 does not contact with the needle roller on foreign steamer 102, can be one Determine the friction between foreign steamer in reducing in degree.
According to the embodiment shown in Fig. 3 B of the present invention, tooth root 201 is designed to when lubrication groove 108 and foreign steamer 102 relatively rotate, Tooth root 201 does not contact with needle roller at any time.From Fig. 3 B it will be clear that the needle roller so designed is adjacent thereto Residing engagement between two teeth, needle roller only contacts (engagement) with tooth waist 203, without being contacted with tooth root 201, i.e. needle roller It is to depart from tooth root 201.It can be seen that, the distance d of any point on needle roller center to tooth root is more than needle roller from Fig. 3 B Radius r.Therefore, as shown in Figure 3A, tooth waist 203 also includes one section of transition for being smoothly connected pitch curve 210 and tooth root 201 Straight line and/or curve 214.
In addition, as an example, as shown in Figure 3A, in addition to pitch curve 210, tooth waist 203 is also included tooth waist 203 one section of easement curve 212 being smoothly connected with tooth top 202.That is, in embodiment as shown in Figure 3A, tooth waist 203 Include one section of easement curve, 212, one sections of pitch curves 210 and one section of transitional straight and/or curve 214 successively from top to bottom.
Certainly, in addition to the example shown by Fig. 3 A, tooth waist 203 can also have other shapes, as long as can ensure Needle roller can be realized on tooth waist 203 with lubrication groove 108 and continuously engaged.
Due to being designed with above-mentioned flute profile, Inside gear drive mechanism of the invention relatively rotates in lubrication groove 108 and foreign steamer 102 Whenever, on some tooth of tooth 110 (j) (j=1,2 ..., n) and foreign steamer 102 of the second quantity in lubrication groove 108 Needle roller be engaged, and the needle roller on remainder tooth and foreign steamer 102 departs from.Also, always only a part for waist with teeth or Only a part for waist with teeth and tooth root are engaged transmission to person with needle roller, and tooth top does not contact with needle roller.Therefore, with traditional cycloidal pin Wheel transmission compares, and engages caused friction and greatly reduces.
This engagement system for quantity m and the interior gear teeth of needle roller on foreign steamer quantity n differences for 1 (i.e. a tooth is poor) when Wait, it is possible to achieve without interference between lubrication groove and needle roller.According to the example of the present invention, turn relatively in lubrication groove 108 and foreign steamer 102 It is dynamic whenever, the quantity that the interior gear teeth engage with needle roller be less than needle roller sum m 60%.
However, in the case of the quantity m of needle roller on foreign steamer is more than 1 with the quantity n differences of the interior gear teeth, of the invention is above-mentioned Flute profile can equally reach the engagement quantity for reducing tooth and then reduce the purpose of friction.
In addition, the present invention lubrication groove 108 flute profile design be based on large eccentricity translation (it is relative with traditional cyclo drive and Speech) realize (i.e. offset is more than traditional cyclo drive).The offset of eccentric rotary device 116 will enter with reference to Fig. 4 H below Row explanation.
In order to more fully understand the partially engaged state of the needle roller on the tooth in lubrication groove 108 and foreign steamer 102, Fig. 4 A-4G with Simplified mesh schematic representation shows that the eccentric rotary device 116 in the Inside gear drive mechanism of the present invention rotates one week and (turned Dynamic T=360 ° of angle) during, how the tooth of lubrication groove is engaged with separating with the needle roller on foreign steamer.In these simplification In mesh schematic representation, for the convenience for describing and understanding, it is assumed that foreign steamer 102 has 16 needle rollers, and has 15 in lubrication groove Tooth, one fewer than the quantity of needle roller of the quantity of tooth.Numbering 1-16 corresponding to this 16 needle rollers is all marked in every width figure, with side Just illustrate that tooth engages with the part of needle roller.In addition, on eccentric rotary device 116, lubrication groove 108 and needle roller or side also increases respectively Arrow 116A, 108A and 104A are added, to show that the relative position of these three parts in the drawings changes, it is noted that every width figure Position of the middle arrow on its corresponding part is changeless.
Wherein, lubrication groove and foreign steamer in the initial rotation position of eccentric rotary device 116 (i.e. T=0 °) is shown in Fig. 4 A Engagement.In the position, this eight needle roller corresponding with lubrication groove 108 eight of numbering 2,3,4,5,13,14,15 and 16 Individual tooth engagement, remaining needle roller depart from lubrication groove 108.Now, corresponding to eccentric rotary device 116, lubrication groove 108 and needle roller Arrow 116A, 108A and 104A direction are point-blank.
Lubrication groove and foreign steamer when eccentric rotary device 116 rotates clockwise 67.5 ° (i.e. T=67.5 °) is shown in Fig. 4 B Engagement, in the position, this eight needle rollers of numbering 5,6,7,8 and 1,2,3,16 eight teeth corresponding with lubrication groove 108 are nibbled Close, remaining needle roller departs from lubrication groove 108.Arrow in Fig. 4 B is understood compared with the arrow in Fig. 4 A, eccentric rotary dress Put 116 to rotate in the clockwise direction, and lubrication groove 108 is while eccentric center translation, (few teeth difference is former for 4.5 ° of counterclockwise rotates Reason).
Lubrication groove and the engagement of foreign steamer when eccentric rotary device 116 rotates 135 ° (i.e. T=135 °) is shown in Fig. 4 C, In the position, the eight teeth engagement corresponding with lubrication groove 108 of this eight needle rollers of numbering 3,4,5,6 and 8,9,10,11, remaining Needle roller departs from lubrication groove.
Lubrication groove and the engagement of foreign steamer when eccentric rotary device 116 rotates 180 ° (i.e. T=180 °) is shown in Fig. 4 D, In the position, the eight teeth engagement corresponding with lubrication groove 108 of this eight needle rollers of numbering 5,6,7,8 and 10,11,12,13, remaining Needle roller with lubrication groove depart from.
The engagement of lubrication groove and foreign steamer when eccentric rotary device 116 rotates 247.5 ° (i.e. T=247.5 °) is shown in Fig. 4 E State, in the position, this eight needle rollers of numbering 8,9,10,11 and 13,14,15,16 eight teeth corresponding with lubrication groove 108 are nibbled Close, remaining needle roller departs from lubrication groove.
And the engagement shape of lubrication groove and foreign steamer when eccentric rotary device 116 rotates 360 ° (i.e. T=360 °) is shown in Fig. 4 F State, in the position, the eight teeth engagement corresponding with lubrication groove 108 of this eight needle rollers of numbering 13,14,15,16 and 2,3,4,5, Remaining needle roller departs from lubrication groove, but mark 108A in lubrication groove 108 shows 24 ° of the rotate counterclockwise of lubrication groove 108, i.e., The angle of one tooth.
Can see from Fig. 4 A-4F, lubrication groove 108 and foreign steamer 102 relatively rotate whenever, all only in some The tooth of wheel engages with needle roller, and remaining interior gear teeth completely disengages with needle roller.It is in office in the example shown in Fig. 4 A-4F When wait, the needle roller quantity engaged with tooth accounts for the 50% of needle roller sum.Also, rotate a cycle in eccentric rotary device 116 During (360 °), each tooth in the lubrication groove 108 at least departs from once with the needle roller on the foreign steamer 102.
Understood in addition, Fig. 4 A and Fig. 4 F are compared, the process of one week is rotated clockwise in eccentric rotary device 116 In, lubrication groove 108 rotates counterclockwise the angle of a tooth.That is, during eccentric rotary device 116 rotates one week, Lubrication groove 108 understands the angle of a tooth of rotation in the opposite direction, wherein a=needle roller quantity (m)-interior number of gear teeth (n).
Fig. 5 be on the basis of Fig. 4 A merge Fig. 4 D-shapeds into figure, wherein, illustrate with dashed lines the position of lubrication groove in Fig. 4 D Put, so as to which Fig. 5 shows that lubrication groove is relative to caused by initial position (i.e. T=0 °) when eccentric rotary device 116 rotates 180 ° Change.It can be intuitive to see very much from Fig. 5, during eccentric rotary device 116 rotates, lubrication groove 108 makees eccentric center translation, And counter clockwise direction rotation.
In addition, as shown in figure 5, eccentric rotary device 116 is d to offset caused by lubrication groove 108.According to the one of the present invention Individual example, offset d are more than needle roller radius r half, i.e. d>r/2.
The Inside gear drive mechanism of the present invention is due to that can realize that part lubrication groove tooth engages with needle roller, rubbing between interior foreign steamer Wiping is smaller, and therefore, the present invention need not be arranged on needle roller using needle guard to reduce friction, and needle roller of the invention is directly installed on On foreign steamer, i.e. needle roller entirety stress.In addition, the needle roller of the present invention only rotates in needle roller groove, without by being subjected to displacement solution Certainly interference problem.It for details, reference can be made to the mounting structure shown in Fig. 6.
Fig. 6, which is shown, is used for the structure for installing needle roller on foreign steamer.Clear for diagram, Fig. 6 illustrate only the one of foreign steamer Fraction.As shown in fig. 6, it is axially arranged with and needle roller quantity identical needle roller mounting groove along foreign steamer on the inward flange 103 of foreign steamer 102 301, the radius of needle roller groove 301 is identical with needle roller radius.Needle roller centring ring 302,304 is respectively equipped with the both ends of groove, for Needle roller supports the both ends of needle roller after being arranged in groove 301, so realize that needle roller positions.Needle roller can revolve in needle roller groove 301 Turn.Needle roller can be supported in stress on whole length direction by needle roller groove, needle roller entirety stress, will not be produced during stress curved Song, so as to transmitting large torque.
The Inside gear drive mechanism of the present invention is in addition to part and structure mentioned above, also with other installations Part, Fig. 7 A and Fig. 7 B are the detailed construction for showing the Inside gear drive mechanism according to an example.Wherein, in Fig. 7 A are shown The dimensional structure diagram of engagement transmission mechanism, and Fig. 7 B show the sectional view of Inside gear drive mechanism.
According to the example of the present invention, Inside gear drive mechanism can use multiple Parallel Symmetrics of lubrication groove 108 to arrange, its In, the eccentric direction of lubrication groove can differ 180 °, naturally it is also possible to differ 90 °, 120 ° etc..By using multiple lubrication grooves, both may be used To realize dynamic balancing, it can also realize that the shaft strength at input shaft both ends is symmetrically offset (zero stress), input shaft is operated steadily. Certainly, it is also to work only with a lubrication groove.No matter several lubrication grooves are used within the protection domain of the application.
Inside gear drive mechanism as shown in Figure 7 B has four and of lubrication groove 108.1,108.2,108.3 being arranged side by side 108.4.Therefore, as shown in Figure 7 B, eccentric rotary device is eccentrically weighted shaft 116, eccentrically weighted shaft 116 be one have 4 sections it is symmetrical partially The bent axle of the eccentric segment of the heart, the eccentric segment of bent axle is respectively 115.1,115.2,115.3 and 115.4, wherein, middle two are partially Heart section 115.2 and 115.3 is one group of eccentric segment of eccentric direction identical, and two eccentric segments 115.1 and 115.4 on side are bias One group of eccentric segment of direction identical, and the eccentric direction of this two groups of eccentric segments differs 180 °.Each lubrication groove 108.1,108.2, 108.3 and 108.4 are all mounted in its corresponding eccentric segment 115.1,115.2,115.3 and 115.4 by a capacity eccentric bearing 114 On, 4 lubrication grooves being arranged in parallel are formed, lubrication groove spacer ring is disposed between adjacent lubrication groove.
The planet carrier 400 of the Inside gear drive mechanism of the present invention includes the first output end 402, the second output end 401, planet Frame bolt 403, nut 404 and output pin 125.Eccentrically weighted shaft 116 arranges in planet carrier 400 that the both ends of eccentrically weighted shaft 116 lead to Cross in the centre bore that bearing is arranged in the first output end 402 and the second output end 401.First output end 402 and second Output end 401 is two flanges, two output ends are fastened by planet carrier bolt 403 and nut 404 to be formed one it is hollow Planet carrier 400, the lubrication grooves 108.1,108.2,108.3 and 108.4 of the interior arrangement of planet carrier 400 four parallel arrangements, more Output pin 125 passes through the pin-and-hole in the lubrication grooves 108.1,108.2,108.3 and 108.4 of 4 parallel arrangements, the both ends of output pin 125 It is arranged in the first output end 402 and the second output end 401, guide 127 is disposed with output pin 125；On planet carrier 400 The first output end 402 and the second output end 401 be arranged in by base bearing on the inside of foreign steamer 102 (or being " shell ") two End, and oil sealing is disposed between foreign steamer 102, prevent the in-house oil leak of Inside gear drive.
Below, power is exported with reference to by (i.e. eccentrically weighted shaft) input power of eccentric rotary device 116 and by lubrication groove 108 Deceleration mode, specifically describe how the mechanism shown in Fig. 7 A and 7B works.
In this deceleration mode, eccentrically weighted shaft 116 links together with power source (such as motor), planet carrier 400 with The device of external reception power is linked together, and foreign steamer 102 is fixed (i.e. foreign steamer is fixed) with pedestal.When electric motor starting work When making, eccentrically weighted shaft 116 is rotated with the rotating speed same with motor, and its eccentric segment 115 passes through eccentric shaft during rotation Hold driving lubrication groove 108 and make eccentric center translation.The frequency of the eccentric center translation of lubrication groove 108 is identical with the rotating speed of eccentrically weighted shaft 116.It is meanwhile interior Tooth on wheel 108 produces with the needle roller on foreign steamer 102 to be engaged so that lubrication groove 108, which produces, rotates (rotation).Specifically, due to The number of teeth of lubrication groove 108 and the difference of needle roller quantity are a, and according to internal messing few teeth difference principle, lubrication groove 108 is (i.e. inclined per translation one week Heart rotating shaft 116 often rotates 360 °), by the angle of a tooth of rotation simultaneously, and the rotation of the direction of rotation and eccentrically weighted shaft 116 In the opposite direction.This has in Fig. 4 A-4H diagram intuitively illustrates very much.With the rotation of lubrication groove 108, the power of lubrication groove 108 Planet carrier 400 is passed to by the pin 125 in lubrication groove, so as to drive planet carrier 400 while rotate, and passes through planet carrier 400 the first output end 401 and/or the second output end 402 output power to external device (ED).So as to pass through Fig. 7 A and 7B institutes The device shown realizes the deceleration transmission between input and output.
As being previously mentioned, Inside gear drive mechanism of the invention is except deceleration mould described in detail above Beyond formula, the first output end 402 and the second output end 401 can also be fixed, i.e., planet carrier 400 be fixed, work as eccentric rotary When device 116 rotates with motor, because planet carrier 400 is fixed, lubrication groove 108 can only produce eccentric center translation, during translation By engaging the driving low speed rotation of foreign steamer 102 and output torque, and the rotation direction of foreign steamer 102 and eccentric rotary device 116 Direction of rotation is identical.In addition, the Inside gear drive mechanism of the present invention can also realize speedup effect, if by the first output end 402 or second output end 401 inputted for low speed, foreign steamer 102 and pedestal are fixed (or by the first output end 402 or the second output End 401 is fixed, and foreign steamer 102 inputs for low speed), eccentrically weighted shaft 116 will reach speedup effect rotate at high speed.
The two kinds of typical cases and its course of work of the Inside gear drive mechanism of the present invention have been described in detail above.Foreign steamer, Any one in lubrication groove and eccentric rotary device can connect power intake, and foreign steamer, lubrication groove and eccentric rotary device In any another one degree can connect clutch end, to transmit power by engaged transmission between foreign steamer and lubrication groove.With Upper content is exemplary explanation, rather than the limitation of the application to the present invention.Those skilled in the art can be according to reality Need the Inside gear drive mechanism of the present invention being applied to various required patterns.
Although present invention is described for the embodiment shown in refer to the attached drawing, but it is to be understood that not Away from present invention teach that scope and background under, the present invention by structural adjustment can realize a variety of lubrication grooves form and Deceleration or speedup form.It is presently disclosed to change that art technology those of ordinary skill will additionally appreciate different modes Embodiment in parameter, such as size, shape, the type of element or material, each fall within the claims in the present invention spirit and In the range of.

Claims (53)

1. a kind of Inside gear drive mechanism, including：
Foreign steamer (102), the inward flange (103) of the foreign steamer (102) be provided with the first quantity circle-arc tooth (104 (i), i=1, 2 ..., m), the circle-arc tooth (104 (i), i=1,2 ..., m) of first quantity is set around the inward flange (103) of the foreign steamer Put；
Lubrication groove (108), the outward flange (109) of the lubrication groove (108) be provided with the second quantity tooth (110 (j), j=1,2 ..., N), the tooth (110 (j), j=1,2 ..., n) of second quantity is set around the outward flange (109) of the lubrication groove, the m>n；
It is characterized in that：
(110 (j), (j=1,2 ..., n) include each tooth：
One tooth top (202), the shape of tooth top (202) be designed in lubrication groove (108) and foreign steamer (102) engaged transmission, tooth top (202) do not contacted with the circle-arc tooth on foreign steamer (102) at any time；And
Two tooth waists (203), are connected to the both sides of tooth top (202), and the shape of tooth waist (203) is designed in lubrication groove (108) During with foreign steamer (102) engaged transmission, tooth waist (203) is periodically contacting and separating with the circle-arc tooth on foreign steamer (102), so that institute State and realize multiple tooth in the case of without interference between the tooth in lubrication groove (108) and the circle-arc tooth on foreign steamer (102) while engage；
Also include several tooth roots (201) on the outward flange (109) of the lubrication groove (108), two adjacent teeth are connected.
2. Inside gear drive mechanism as claimed in claim 1, it is characterised in that：
Tooth root (201) is one section of curve or straight line；
Tooth top (202) is one section of curve or straight line；And
Tooth waist (203) is smooth composite curve, and it is made up of the one or more in curve, straight line, circular arc and line transect.
3. Inside gear drive mechanism as claimed in claim 2, it is characterised in that：
A part for the tooth waist (203) is curve, when the curve is lubrication groove (108) and foreign steamer (102) engaged transmission, is being set Mesh regional in circle-arc tooth on the interior gear teeth and foreign steamer a series of one section of envelope being formed of meshing points, setting Mesh regional in multiple tooth while engagement have no interference, and the circle-arc tooth outside the mesh regional of setting on the interior gear teeth and foreign steamer without Contact or engagement.
4. Inside gear drive mechanism as claimed in claim 3, it is characterised in that：
The length of envelope and depended in the position of tooth waist (203) on tooth and foreign steamer (102) in desired lubrication groove (108) Circle-arc tooth engagement quantity and engagement section.
5. Inside gear drive mechanism as claimed in claim 3, it is characterised in that：
Formed the tooth top (202) curve or straight line and the envelope of the tooth waist (203) it is smooth by easement curve (212) Connection.
6. Inside gear drive mechanism as claimed in claim 3, it is characterised in that：
Form the curve of the tooth root (201) or the envelope of straight line and the tooth waist (203) passes through easement curve and/or straight line (214) it is smoothly connected, tooth root (201) does not contact with the circle-arc tooth on foreign steamer (102) at any time.
7. Inside gear drive mechanism as claimed in claim 3, it is characterised in that：
It is same root envelope that the curve of the tooth root (201), which is formed, with the envelope of the tooth waist (203).
8. Inside gear drive mechanism as claimed in claim 1, it is characterised in that also include：
Eccentric rotary device (116), the eccentric rotary device (116) can drive the lubrication groove (108), to cause in described Take turns (108) and carry out eccentric center translation and/or rotation relative to the foreign steamer inward flange (103).
9. Inside gear drive mechanism as claimed in claim 1, it is characterised in that：
The lubrication groove (108) and foreign steamer (102) engaged transmission whenever, tooth (110 (j), the j=of second quantity 1,2 ..., n) in a part and first quantity circle-arc tooth (104 (i), i=1,2 ..., m) in part engagement or Contact, and the remainder of the tooth (110 (j), j=1,2 ..., n) of second quantity and the circle-arc tooth of first quantity (104 (i), i=1,2 ..., m) departs from.
10. Inside gear drive mechanism as claimed in claim 8, it is characterised in that：
The m-n=a a ∈ (1,2,3... natural numbers)；
When the eccentric rotary device (116) rotates a cycle (360 degree), lubrication groove (108) rotates the angle of a tooth, and The direction of rotation of lubrication groove (108) is opposite with eccentric rotary device (116) rotation direction.
11. Inside gear drive mechanism as claimed in claim 1, it is characterised in that：
The circle-arc tooth (104 (i), i=1,2 ..., m) of the first quantity on the foreign steamer (102) is needle roller.
12. Inside gear drive mechanism as claimed in claim 9, it is characterised in that also include：
Eccentric rotary device (116), the eccentric rotary device (116) can drive the lubrication groove (108), to cause in described Take turns (108) and carry out eccentric center translation and/or rotation relative to the foreign steamer inward flange (103)；
The offset d of the eccentric rotary device (116) is more than r/2, and wherein r is needle roller radius.
13. Inside gear drive mechanism as claimed in claim 1, it is characterised in that：
The circle-arc tooth (104 (i), i=1,2 ..., m) of the first quantity on the foreign steamer (102) is needle roller；
In the tooth of lubrication groove (108) and all positions of engagement of needle roller, any one on needle roller center to corresponding tooth root (201) The distance of point is more than or equal to the radius of needle roller.
14. Inside gear drive mechanism as claimed in claim 11, it is characterised in that：
The inward flange (103) of the foreign steamer (102) is provided with needle roller mounting groove (301), radius and the needle roller half of needle roller groove (301) Footpath is identical.
15. Inside gear drive mechanism as claimed in claim 14, it is characterised in that：
The both ends of needle roller are supported by needle roller centring ring (302,304), needle roller are positioned in the needle roller groove (301) of foreign steamer, needle roller It can be rotated in needle roller groove (301).
16. Inside gear drive mechanism as claimed in claim 1, it is characterised in that：
In the lubrication groove (108) and during foreign steamer (102) engaged transmission, each tooth top (202) in the lubrication groove (108) with Circle-arc tooth is not in contact with.
17. Inside gear drive mechanism as claimed in claim 6, it is characterised in that：
In the lubrication groove (108) and during foreign steamer (102) engaged transmission, each tooth top (202) in the lubrication groove (108) and Each tooth root (201) is not in contact with circle-arc tooth.
18. Inside gear drive mechanism as claimed in claim 1, it is characterised in that：
The eccentric rotary device (116) rotate a cycle during, each tooth of the lubrication groove (108) with it is described Circle-arc tooth on foreign steamer (102) at least departs from once.
19. Inside gear drive mechanism as claimed in claim 1, it is characterised in that：
The Inside gear drive mechanism is provided with the lubrication groove (108.1,108.2,108.3,108.4) of at least four parallel arrangements.
20. Inside gear drive mechanism as claimed in claim 1, it is characterised in that：
The lubrication groove (108) and foreign steamer (102) engaged transmission whenever, the circle-arc tooth of first quantity (104 (i), I=1,2 ..., m) with the quantity that the tooth (110 (j), j=1,2 ..., n) of second quantity engages it is less than the circle-arc tooth The 60% of total quantity.
21. Inside gear drive mechanism as claimed in claim 1, it is characterised in that：
The Inside gear drive mechanism also includes planet carrier (400), and the lubrication groove (108) is arranged on the planet carrier (400), To transmit power between lubrication groove (108) and planet carrier (400).
22. Inside gear drive mechanism as claimed in claim 21, it is characterised in that：
The planet carrier (400) is arranged on the foreign steamer (102) inside, and on the eccentric rotary device (116).
A kind of 23. Inside gear drive mechanism, it is characterised in that including：
Foreign steamer (102), the foreign steamer inward flange (103) are provided with the circle-arc tooth (104 (i), i=1,2 ..., m) of the first quantity, The circle-arc tooth (104 (i), i=1,2 ..., m) of first quantity is set around the foreign steamer inward flange (103)；
Lubrication groove (108), the lubrication groove outward flange (109) is provided with the tooth (110 (j), j=1,2 ..., n) of the second quantity, described The tooth (110 (j), j=1,2 ..., n) of second quantity is set around the lubrication groove outward flange (109), the m>n；
Eccentric rotary device (116), the eccentric rotary device (116) enable to the lubrication groove (108) arranged off-centre；
Wherein, any one connection power input in the foreign steamer (102), lubrication groove (108) and eccentric rotary device (116) End, the foreign steamer (102), lubrication groove (108) connect clutch end with any another one in eccentric rotary device (116), with Power is transmitted by the engaged transmission between foreign steamer (102) and lubrication groove (108)；
And wherein, the design of the flute profile on the lubrication groove (108) causes in lubrication groove (108) and foreign steamer (102) engaged transmission Whenever, the circle-arc tooth of a part and first quantity in the tooth (110 (j), j=1,2 ..., n) of second quantity In (104 (i), i=1,2 ..., m) a part engagement or contact, and second quantity tooth (110 (j), j=1, 2 ..., n) the circle-arc tooth (104 (i), i=1,2 ..., m) of remainder and first quantity depart from.
24. internal gear transmission mechanism as claimed in claim 23, it is characterised in that：
(110 (j), (j=1,2 ..., n) include each tooth in lubrication groove：
One tooth top (202), the shape of tooth top (202) be designed in lubrication groove (108) and foreign steamer (102) engaged transmission, tooth top (202) do not contacted with the circle-arc tooth on foreign steamer (102) at any time；And
Two tooth waists (203), are connected to the both sides of tooth top (202), and the shape of tooth waist (203) is designed in lubrication groove (108) During with foreign steamer (102) engaged transmission, tooth waist (203) is periodically contacting and separating with the circle-arc tooth on foreign steamer, with described interior Realize multiple tooth in the case of without interference between tooth on wheel (108) and the circle-arc tooth on foreign steamer (102) while engage；
Also include several tooth roots (201) on the outward flange (109) of the lubrication groove (108), two adjacent teeth are connected.
25. Inside gear drive mechanism as claimed in claim 24, it is characterised in that：
Tooth root (201) is one section of curve or straight line；
Tooth top (202) is one section of curve or straight line；And
Tooth waist (203) is smooth composite curve, and it is made up of the one or more in curve, straight line, circular arc and line transect.
26. Inside gear drive mechanism as claimed in claim 25, it is characterised in that：
A part for the tooth waist (203) is curve, when the curve is lubrication groove (108) and foreign steamer (102) engaged transmission, is being set Mesh regional in circle-arc tooth on the interior gear teeth and foreign steamer a series of one section of envelope being formed of meshing points, setting Mesh regional in multiple tooth while engagement have no interference, and the circle-arc tooth outside the mesh regional of setting on the interior gear teeth and foreign steamer without Contact or engagement.
27. Inside gear drive mechanism as claimed in claim 26, it is characterised in that：
The length of envelope and depended in the position of tooth waist (203) on tooth and foreign steamer (102) in desired lubrication groove (108) Circle-arc tooth engagement quantity and engagement section.
28. Inside gear drive mechanism as claimed in claim 26, it is characterised in that：
Formed the tooth top (202) curve or straight line and the envelope of the tooth waist (203) it is smooth by easement curve (212) Connection.
29. Inside gear drive mechanism as claimed in claim 26, it is characterised in that：
Form the curve of the tooth root (201) or the envelope of straight line and the tooth waist (203) passes through easement curve and/or straight line (214) it is smoothly connected, tooth root (201) does not contact with the circle-arc tooth on foreign steamer (102) at any time.
30. Inside gear drive mechanism as claimed in claim 26, it is characterised in that：
It is same root envelope that the curve of the tooth root (201), which is formed, with the envelope of the tooth waist (203).
31. Inside gear drive mechanism as claimed in claim 23, it is characterised in that：
The m-n=a a ∈ (1,2,3... natural numbers)；
When the eccentric rotary device (116) rotates a cycle (360 degree), lubrication groove (108) rotates the angle of a tooth, and The direction of rotation of lubrication groove (108) is opposite with eccentric rotary device (116) rotation direction.
32. Inside gear drive mechanism as claimed in claim 23, it is characterised in that：
The circle-arc tooth (104 (i), i=1,2 ..., m) of the first quantity on the foreign steamer (102) is needle roller.
33. Inside gear drive mechanism as claimed in claim 24, it is characterised in that：
The circle-arc tooth (104 (i), i=1,2 ..., m) of the first quantity on the foreign steamer (102) is needle roller；
In the tooth of lubrication groove (108) and all positions of engagement of needle roller, any one on needle roller center to corresponding tooth root (201) The distance of point is more than or equal to the radius of needle roller.
34. Inside gear drive mechanism as claimed in claim 23, it is characterised in that：
The offset d of eccentric rotary device (116) is more than r/2, and wherein r is needle roller radius.
35. Inside gear drive mechanism as claimed in claim 32, it is characterised in that：
The inward flange (103) of the foreign steamer (102) is provided with needle roller mounting groove (301), radius and the needle roller half of needle roller groove (301) Footpath is identical.
36. Inside gear drive mechanism as claimed in claim 35, it is characterised in that：
The both ends of the needle roller (104 (i), i=1,2 ..., m) are supported by needle roller centring ring (302,304), and needle roller is positioned at In the needle roller mounting groove (301) of foreign steamer (102), needle roller can rotate in needle roller mounting groove (301).
37. Inside gear drive mechanism as claimed in claim 24, it is characterised in that：
Each in the circle-arc tooth engaged transmission on the lubrication groove (108) and foreign steamer (102), in the lubrication groove (108) Tooth top (202) is not in contact with circle-arc tooth.
38. Inside gear drive mechanism as claimed in claim 29, it is characterised in that：
In the lubrication groove (108) and during foreign steamer (102) engaged transmission, each tooth top (202) in the lubrication groove (108) and Each tooth root (201) is not in contact with circle-arc tooth.
39. Inside gear drive mechanism as claimed in claim 23, it is characterised in that：
During the eccentric rotary device (116) rotates a cycle, each tooth and institute in the lubrication groove (108) The circle-arc tooth stated on foreign steamer (102) at least departs from once.
40. Inside gear drive mechanism as claimed in claim 23, it is characterised in that：
The Inside gear drive mechanism is provided with the lubrication groove (108.1,108.2,108.3,108.4) of at least four parallel arrangements.
41. Inside gear drive mechanism as claimed in claim 23, it is characterised in that：
The lubrication groove (108) and foreign steamer (102) engaged transmission whenever, the first a plurality of circle-arc teeth (104 (i), I=1,2 ..., m) with the quantity of second plurality of pins (110 (j), j=1,2 ..., n) engagement it is less than the circle-arc tooth The 60% of total quantity.
42. Inside gear drive mechanism as claimed in claim 23, it is characterised in that：
The Inside gear drive mechanism also includes planet carrier (400), and the lubrication groove (108) is arranged on the planet carrier (400), To transmit power between lubrication groove (108) and planet carrier (400).
43. Inside gear drive mechanism as claimed in claim 42, it is characterised in that：
The planet carrier (400) is arranged on the foreign steamer (102) inside, and on the eccentric rotary device (116).
44. a kind of lubrication groove (108), in interior engagement transmission mechanism with foreign steamer (102) engaged transmission, the outside of the lubrication groove Edge (109) is provided with the tooth (110 (j), j=1,2 ..., n) of the second quantity, the institute on the inward flange (103) with the foreign steamer Circle-arc tooth (104 (i), i=1,2 ..., m) engaged transmission of the first quantity set, tooth (110 (j), the j of second quantity =1,2 ..., n) set around the outward flange (109) of the lubrication groove, wherein (110 (j), (j=1,2 ..., n) include each tooth：
One tooth top (202), the shape of tooth top (202) be designed in lubrication groove (108) and foreign steamer (102) engaged transmission, tooth top (202) do not contacted with the circle-arc tooth on foreign steamer (102) at any time；And
Two tooth waists (203), are connected to the both sides of tooth top (202), and the shape of tooth waist (203) is designed in lubrication groove (108) During with foreign steamer (102) engaged transmission, tooth waist (203) is periodically contacting and separating with foreign steamer (102), so that the lubrication groove (108) realize multiple tooth in the case of without interference between foreign steamer (102) while engage；
Also include several tooth roots (201) on the outward flange (109) of the lubrication groove (108), two adjacent teeth are connected.
45. lubrication groove as claimed in claim 44, it is characterised in that：
Tooth root (201) is one section of curve or straight line；
Tooth top (202) is one section of curve or straight line；And
Tooth waist (203) is smooth composite curve, and it is made up of the one or more in curve, straight line, circular arc and line transect.
46. Inside gear drive mechanism as claimed in claim 44, it is characterised in that：
A part for the tooth waist (203) is curve, when the curve is lubrication groove (108) and foreign steamer (102) engaged transmission, is being set Mesh regional in circle-arc tooth on the interior gear teeth and foreign steamer a series of one section of envelope being formed of meshing points, setting Mesh regional in multiple tooth while engagement have no interference, and the circle-arc tooth outside the mesh regional of setting on the interior gear teeth and foreign steamer without Contact or engagement.
47. Inside gear drive mechanism as claimed in claim 46, it is characterised in that：
The length of envelope and depended in the position of tooth waist (203) on tooth and foreign steamer (102) in desired lubrication groove (108) Circle-arc tooth engagement quantity and engagement section.
48. Inside gear drive mechanism as claimed in claim 46, it is characterised in that：
Formed the tooth top (202) curve or straight line and the envelope of the tooth waist (203) it is smooth by easement curve (212) Connection.
49. Inside gear drive mechanism as claimed in claim 46, it is characterised in that：
Form the curve of the tooth root (201) or the envelope of straight line and the tooth waist (203) passes through easement curve and/or straight line (214) it is smoothly connected, tooth root (201) does not contact with the circle-arc tooth on foreign steamer (102) at any time.
50. Inside gear drive mechanism as claimed in claim 46, it is characterised in that：
It is same root envelope that the curve of the tooth root (201), which is formed, with the envelope of the tooth waist (203).
51. a kind of Inside gear drive mechanism, including times of any one technical characteristic or technical characteristic in claim 1-22 Meaning combination.
52. a kind of Inside gear drive mechanism, including times of any one technical characteristic or technical characteristic in claim 23-43 Meaning combination.
A kind of 53. any combination of any one technical characteristic or technical characteristic in lubrication groove, including claim 44-50.
CN201610404869.1A 2015-10-13 2016-06-08 Inside gear drive mechanism Withdrawn CN107477151A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN201610404869.1A CN107477151A (en) 2016-06-08 2016-06-08 Inside gear drive mechanism
US15/767,521 US20180291996A1 (en) 2015-10-13 2016-10-11 Internally meshed transmission mechanism
CA3001644A CA3001644A1 (en) 2015-10-13 2016-10-11 Inner meshing transmission mechanism
PCT/IB2016/001459 WO2017064549A2 (en) 2015-10-13 2016-10-11 Internally meshed transmission mechanism
JP2018519836A JP2018530721A (en) 2015-10-13 2016-10-11 Inner meshing transmission mechanism
KR1020187013515A KR20180069853A (en) 2015-10-13 2016-10-11 Intermixing transmission mechanism
EP16816732.8A EP3364071A2 (en) 2015-10-13 2016-10-11 Internally meshed transmission mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610404869.1A CN107477151A (en) 2016-06-08 2016-06-08 Inside gear drive mechanism

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