CN205101538U - Two inner gearing planetary gear mechanisms of ring gear opposition - Google Patents
Two inner gearing planetary gear mechanisms of ring gear opposition Download PDFInfo
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- CN205101538U CN205101538U CN201520828660.9U CN201520828660U CN205101538U CN 205101538 U CN205101538 U CN 205101538U CN 201520828660 U CN201520828660 U CN 201520828660U CN 205101538 U CN205101538 U CN 205101538U
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Abstract
The utility model relates to a two inner gearing planetary gear mechanisms of ring gear opposition, it has the planet carrier subassembly, the sun gear, ring gear and ring gear, the planet carrier subassembly includes 2 annular end plates and is located 2 annular plate's between the end plate planet carrier main part, end plate and planet carrier main part can be connected under the state that overlaps each other, middle part at the sun gear is formed with the pivot, the sun gear runs through the through -hole of the centre of planet carrier main part, the pivot runs through the end plate and stretches out from the end plate, the ring gear has internal tooth and external tooth, the ring gear sets up at the axis of the both sides of planet carrier main part and ring gear symmetrically for the axis of planet carrier main part, the internal tooth of ring gear and the meshing of the external tooth of sun gear, the ring gear surrounds the periphery of planet carrier main part and sets up between the end plate, the internal tooth of ring gear and the meshing of the external tooth of ring gear, the terminal surface of sun gear and the surface of end plate, the terminal surface of ring gear and the surface of planet carrier main part and the surface of end plate, the terminal surface of ring gear and the surface of end plate, with pivoted mode connection relatively.
Description
Technical field
The present invention relates to two internal-gearing planet gear mechanisms that a kind of ring gear is opposed.
Background technique
Planetary Gear Transmission is as constituent element very important in gear transmission, there is the advantages such as volume is little, lightweight, compact structure, bearing capacity are large, transmission efficiency is high, velocity ratio is large and smooth running, shock resistance and vibration ability strong, long service life, reliable operation, now by people in order to alternative ordinary gear transmission, be widely used in each field such as national economy and science and techniques of defence as the speed change gear in each machine driven system.
Along with the develop rapidly of modern science technology and industrial and agricultural production, the demand of gear is strengthened day by day, require also to significantly improve to its transmission simultaneously.Particularly those are wanted that cube is little, quality are light, the gear drive of the automobile, tank, cannon, lifting transport, petrochemical industry, aviation, boats and ships etc. of compact structure and smooth running, not only require high-speed high-power, low speed high torque, also must meet the needs such as stationarity and miniaturization.Therefore, improve the bearing capacity of planetary gear mechanism further and reduce the key subjects that its physical dimension is Planetary Gear Transmission technical development.
In power transmission, the NGW type Planetary Gear Transmission that a kind of epicyclic gear train that application is maximum at present, transmitted power is maximum is made up of inside and outside engagement and multiple uniform public planet wheel.Although this Planetary Gear Transmission can meet actual demand preferably, but be outer gearing transmission due to what adopt between sun gear and planet wheel, than Inside gear drive, there is the features such as physical dimension is large, slip ratio is high, transmission efficiency is low, working life is short, the defect that particularly centre distance is large, contact ratio is little, bearing capacity is weak, is difficult under determining little in size, the lightweight condition of Planetary Gear Transmission realize high speed, heavy duty, powerful transmission.
Summary of the invention
Two internal-gearing planet gear mechanisms that the ring gear that the object of the invention is to propose a kind of compact structure for the technological deficiency existed in prior art, contact ratio is large, transmission efficiency is high, bearing capacity is strong is opposed.
Following technological scheme is adopted for realizing object of the present invention.
Two internal-gearing planet gear mechanisms that the ring gear of technological scheme 1 is opposed, there is planet carrier component, sun gear, ring gear and gear ring, described planet carrier component comprises 2 end plates of annular and the carrier main-body of the annular plate-like between 2 described end plates, described end plate can be connected with described carrier main-body under overlapped state, rotating shaft is formed at the middle part of described sun gear, described sun gear runs through the through hole of the centre of described carrier main-body, described rotating shaft runs through described end plate and stretches out from described end plate, described ring gear has internal tooth and external tooth, described ring gear be arranged on the both sides of described carrier main-body and the axis of described ring gear relative to the axisymmetrical of described carrier main-body, the internal tooth of described ring gear engages with the external tooth of described sun gear, described gear ring surrounds the periphery of described carrier main-body and is arranged between described end plate, the internal tooth of described gear ring engages with the external tooth of described ring gear, the end face of described sun gear and the surface of described end plate, the surface of the end face of described ring gear and the surface of described carrier main-body and described end plate, the end face of described gear ring and the surface of described end plate, can mode connect in relative rotation.
Two internal-gearing planet gear mechanisms that the ring gear of technological scheme 2 is opposed, in two internal-gearing planet gear mechanisms that the ring gear of technological scheme 1 is opposed, between described end plate and described carrier main-body, in the space between described sun gear and described ring gear and the space between described ring gear and described gear ring, semi-moon shaped auxiliary support plate is installed.
Two internal-gearing planet gear mechanisms that the ring gear of technological scheme 3 is opposed, in two internal-gearing planet gear mechanisms that the ring gear of technological scheme 1 is opposed, on the surface of the end face of described sun gear and the corresponding with the end face of described sun gear of described end plate, at the end face of described ring gear, on the surface of the surface corresponding with the end face of described ring gear of described carrier main-body and the corresponding with the end face of described ring gear of described end plate, on the surface of the end face of described gear ring and the corresponding with the end face of described gear ring of described end plate, be formed with the circular groove that cooperatively interacts respectively, by arranging ball in these circular grooves, can mode connect in relative rotation.
Two internal-gearing planet gear mechanisms that the ring gear of technological scheme 4 is opposed, in two internal-gearing planet gear mechanisms that the ring gear any one of technological scheme 1 to 3 is opposed, there are 1 described carrier main-body and 2 the described ring gears corresponding with 1 described carrier main-body, or there is the described carrier main-body of more than 1 and the described ring gear of more than 2 corresponding with the described carrier main-body of more than 1.
Two internal-gearing planet gear mechanisms that the ring gear of technological scheme 5 is opposed, in two internal-gearing planet gear mechanisms that the ring gear of technological scheme 2 is opposed, described carrier main-body, described end plate and described auxiliary support plate are linked together by screw rod and nut.
Compared with prior art, the present invention has following beneficial effect.
According to two internal-gearing planet gear mechanisms that the ring gear of technological scheme 1 is opposed, there is planet carrier component, sun gear, ring gear and gear ring, ring gear has internal tooth and external tooth, this ring gear is arranged on the both sides of carrier main-body, opposite disposed in gear ring, sun gear engages with the internal tooth of ring gear, and the external tooth of ring gear engages with gear ring, thus forms the planetary pinion of two internal messing.
Two internal-gearing planet gear mechanisms that ring gear according to the present invention is opposed, two Inside gear drive frictional loss is little, transmission efficiency is high, contact ratio is large, bearing capacity is strong, more compact structure, and for the internal messing flank profil much bigger compared with outer gearing contact ratio, above-mentioned effect is more obvious.In addition, the opposed form of dicyclo shares load jointly by two ring gears are symmetrical, the number of teeth simultaneously participating in engaging increases, the load that both each gear can have been made to bear is less, and allow to adopt less modulus, thus be conducive to reducing its physical dimension, under same load condition, make that its volume is less, quality is lighter, the inertia force and moment of planet carrier component and ring gear can be made again mutually to balance, obviously can improve the stressing conditions of gear ring, thus make motion more steadily, shock resistance and vibration ability is stronger, work is more reliable, the life-span is longer.
According to two internal-gearing planet gear mechanisms that the ring gear of technological scheme 2 is opposed, between sun gear and ring gear and between ring gear and gear ring, auxiliary support plate is installed, thus when forming the opposed two internal-gearing planet gear mechanism of whole ring gear being connected with carrier main-body by end plate, supplemental support can be carried out by the inner space of auxiliary support plate to the opposed two internal-gearing planet gear mechanisms of whole ring gear, ensure the join strength of two internal-gearing planet gear mechanisms that ring gear is opposed.
According to two internal-gearing planet gear mechanisms that the ring gear of technological scheme 3 is opposed, the end face of sun gear and the surface of end plate is realized by the structure of ball and annular concave-convex groove, the surface of the end face of ring gear and the surface of carrier main-body and end plate, supporting and location between the end face of gear ring and the surface of end plate and being rotationally connected, thus the opposed two internal-gearing planet gear mechanisms of ring gear can be realized by simple structure, the two internal-gearing planet gear whole mechanism making ring gear opposed are simplified and miniaturization.
According to two internal-gearing planet gear mechanisms that the ring gear of technological scheme 4 is opposed, carrier main-body can have one or more, and ring gear can have more than 2 or 2, can reach technique effect of the present invention equally like this.
According to two internal-gearing planet gear mechanisms that the ring gear of technological scheme 5 is opposed, carrier main-body, end plate and auxiliary support plate are linked together by screw rod and nut, thus Placement is simple, are convenient to install.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view representing two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed.
Fig. 2 is the cross-sectional schematic representing two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed.
Fig. 3 is the decomposing schematic representation representing two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed.
Fig. 4 is the schematic diagram of the internal structure representing two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed.
Fig. 5 is the theory of engagement figure representing two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed.
Embodiment
With reference to the accompanying drawings embodiments of the present invention are described in detail.
Fig. 1 is the schematic perspective view representing two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed.Fig. 2 is the cross-sectional schematic representing two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed.Fig. 3 is the decomposing schematic representation representing two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed.Fig. 4 is the schematic diagram of the internal structure representing two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed.Fig. 5 is the theory of engagement figure representing two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed.
As shown in Figures 1 to 5, two internal-gearing planet gear mechanisms that ring gear of the present invention is opposed have planet carrier component 10, sun gear 20,2 ring gears 30 and gear ring 40.
Planet carrier component 10 comprises 2 end plates 11 of annular and 1 carrier main-body 12 of the annular plate-like between 2 end plates 11, and end plate 11 can be connected with carrier main-body 12 under overlapped state.The through hole that sun gear 20 runs through the centre of end plate 11 and carrier main-body 12 is arranged on the middle part of planet carrier component 10, and sun gear 20 is connected with outside live axle.Ring gear 30 has internal tooth and external tooth, ring gear 30 be arranged on the both sides of carrier main-body 12 and the axis of ring gear 30 relative to the axisymmetrical of carrier main-body 12, the internal tooth of ring gear 30 engages with the external tooth of sun gear 20.Gear ring 40 surrounds the periphery of carrier main-body 12 and is arranged between end plate 11, and the internal tooth of gear ring 40 engages with the external tooth of ring gear 30.
Specifically, sun gear 20 runs through the through hole of the centre of carrier main-body 12, formed in the both sides of carrier main-body 12 and surround through hole and relative to the tongue 120 of the axisymmetrical of sun gear, the end face relative with carrier main-body 12 of two ring gears 30 is also formed with groove 300, ring gear 30 can be connected with carrier main-body 12 with the cooperation of ball 50 in relative rotation by the groove 300 of ring gear, the tongue 120 of carrier main-body, and two ring gears 30 are in the both sides of carrier main-body 12, with sun gear 20 internal messing.In addition, the outside of 2 ring gears 30 and gear ring 40 internal messing.
The end face relative with end plate of sun gear 20, ring gear 30 and gear ring 40 is formed with groove respectively, and be also formed with tongue 110 etc. on end plate 11, the same cooperation by groove, tongue and ball of sun gear 20, ring gear 30 and gear ring 40 and end plate are rotationally connected.Finally, under the state clamping sun gear 20, ring gear 30 and gear ring 40 between two end plates 11, end plate 11 and carrier main-body 12 are fixed together, form two internal-gearing planet gear mechanisms that ring gear is opposed.In addition, in the above-described embodiment, sun gear, ring gear and gear ring form groove, end plate and carrier main-body form tongue, but be not limited thereto, tongue can be formed on sun gear, ring gear and gear ring, end plate and carrier main-body form groove, equally also can realize being rotationally connected.
Two internal-gearing planet gear mechanisms that ring gear according to the present invention is opposed, two Inside gear drive frictional loss is little, transmission efficiency is high, contact ratio is large, bearing capacity is strong, more compact structure, and for the internal messing flank profil much bigger compared with outer gearing contact ratio, above-mentioned effect is more obvious.In addition, the opposed form of dicyclo shares load jointly by two ring gears are symmetrical, the number of teeth simultaneously participating in engaging increases, the load that both each gear can have been made to bear is less, and allow to adopt less modulus, thus be conducive to reducing its physical dimension, under same load condition, make that its volume is less, quality is lighter, the inertia force and moment of planet carrier component and ring gear can be made again mutually to balance, obviously can improve the stressing conditions of gear ring, thus make motion more steadily, shock resistance and vibration ability is stronger, work is more reliable, the life-span is longer.
In addition, the end face of sun gear and the surface of end plate is realized by the structure of ball and annular concave-convex groove, the surface of the end face of ring gear and the surface of carrier main-body and end plate, supporting and location between the end face of gear ring and the surface of end plate and being rotationally connected, thus the opposed two internal-gearing planet gear mechanisms of ring gear can be realized by simple structure, the two internal-gearing planet gear whole mechanism making ring gear opposed are simplified and miniaturization.
In addition, the mode be rotationally connected is realized in the above-described embodiment exemplified with the structure by ball and annular concave-convex groove, but be not limited thereto, as long as the surface of the end face of sun gear and end plate, the surface of the end face of ring gear and the surface of carrier main-body and end plate, the end face of gear ring and the surface of end plate, can mode connect in relative rotation, a circle projection can be formed in end plate, carrier main-body, the end face of the end face of sun gear, the end face of ring gear and gear ring is formed corresponding groove, is formed by the cooperation of projection and groove and be rotationally connected.
In addition, preferably between end plate 11 and carrier main-body 12, in the space between sun gear 20 and ring gear 30 and the space between ring gear 30 and gear ring 40, semi-moon shaped auxiliary support plate 60 is installed.Thus when forming the opposed two internal-gearing planet gear mechanism of whole ring gear being connected with carrier main-body by end plate, supplemental support can be carried out by the inner space of auxiliary support plate to the opposed two internal-gearing planet gear mechanisms of whole ring gear, ensure the join strength of two internal-gearing planet gear mechanisms that ring gear is opposed.
In addition, in the above-described embodiment exemplified with the structure with 1 carrier main-body 12 and 2 ring gears 30, but be not limited thereto, 1 carrier main-body 12 and 2 ring gears 30 corresponding with 1 carrier main-body 12 can be had, or there is the carrier main-body 12 of more than 1 and the ring gear 30 of more than 2 corresponding with the carrier main-body 12 of more than 1, can reach technique effect of the present invention equally like this.
In addition, preferred carrier main-body 12, end plate 11 and auxiliary support plate 60 are linked together by screw rod and nut, thus Placement is simple, are convenient to install.The connection of certain carrier main-body, end plate and auxiliary support plate is not limited thereto, and can be bolted, the alternate manners such as screw connection, forms the opposed two internal-gearing planet gear mechanisms of ring gear as long as can assemble.
In addition, each embodiment above-mentioned is only a kind of mode of execution, and each embodiment above-mentioned combination in any can form various may connection, and this combination is also contained in protection scope of the present invention.
Above two internal-gearing planet gear mechanisms that the ring gear of the preferred embodiment of the present invention is opposed are illustrated, but, the present invention is not limited to above-mentioned concrete mode of execution, only otherwise depart from the scope of claim, can carry out various distortion or change.Present invention resides in the various distortion in the scope of claim and change.
Claims (5)
1. the two internal-gearing planet gear mechanisms that ring gear is opposed, is characterized in that,
There is planet carrier component, sun gear, ring gear and gear ring,
Described planet carrier component comprises 2 end plates of annular and the carrier main-body of the annular plate-like between 2 described end plates, and described end plate can be connected with described carrier main-body under overlapped state,
Be formed with rotating shaft at the middle part of described sun gear, described sun gear runs through the through hole of the centre of described carrier main-body, and described rotating shaft runs through described end plate and stretches out from described end plate,
Described ring gear has internal tooth and external tooth, described ring gear be arranged on the both sides of described carrier main-body and the axis of described ring gear relative to the axisymmetrical of described carrier main-body, the internal tooth of described ring gear engages with the external tooth of described sun gear,
Described gear ring surrounds the periphery of described carrier main-body and is arranged between described end plate, and the internal tooth of described gear ring engages with the external tooth of described ring gear,
The end face of described sun gear and the surface of described end plate, the surface of the end face of described ring gear and the surface of described carrier main-body and described end plate, the end face of described gear ring and the surface of described end plate, can mode connect in relative rotation.
2. two internal-gearing planet gear mechanisms that ring gear according to claim 1 is opposed, it is characterized in that, between described end plate and described carrier main-body, in the space between described sun gear and described ring gear and the space between described ring gear and described gear ring, semi-moon shaped auxiliary support plate is installed.
3. two internal-gearing planet gear mechanisms that ring gear according to claim 1 is opposed, it is characterized in that, on the surface of the end face of described sun gear and the corresponding with the end face of described sun gear of described end plate, at the end face of described ring gear, on the surface of the surface corresponding with the end face of described ring gear of described carrier main-body and the corresponding with the end face of described ring gear of described end plate, on the surface of the end face of described gear ring and the corresponding with the end face of described gear ring of described end plate, be formed with the circular groove that cooperatively interacts respectively, by arranging ball in these circular grooves, can mode connect in relative rotation.
4. two internal-gearing planet gear mechanisms that ring gear according to any one of claim 1 to 3 is opposed, it is characterized in that, there are 1 described carrier main-body and 2 the described ring gears corresponding with 1 described carrier main-body, or there is the described carrier main-body of more than 1 and the described ring gear of more than 2 corresponding with the described carrier main-body of more than 1.
5. two internal-gearing planet gear mechanisms that ring gear according to claim 2 is opposed, is characterized in that, described carrier main-body, described end plate and described auxiliary support plate are linked together by screw rod and nut.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520828660.9U CN205101538U (en) | 2015-10-23 | 2015-10-23 | Two inner gearing planetary gear mechanisms of ring gear opposition |
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| CN201520828660.9U CN205101538U (en) | 2015-10-23 | 2015-10-23 | Two inner gearing planetary gear mechanisms of ring gear opposition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179669A (en) * | 2015-10-23 | 2015-12-23 | 中国人民解放军军事交通学院 | Double internal meshing planetary gear mechanism with opposite gear rings |
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- 2015-10-23 CN CN201520828660.9U patent/CN205101538U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179669A (en) * | 2015-10-23 | 2015-12-23 | 中国人民解放军军事交通学院 | Double internal meshing planetary gear mechanism with opposite gear rings |
| CN105179669B (en) * | 2015-10-23 | 2017-08-04 | 中国人民解放军军事交通学院 | The opposed double internal-gearing planet gear mechanisms of ring gear |
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