EP2583001A1 - Harmonic orbit getriebe - Google Patents
Harmonic orbit getriebeInfo
- Publication number
- EP2583001A1 EP2583001A1 EP11738814.0A EP11738814A EP2583001A1 EP 2583001 A1 EP2583001 A1 EP 2583001A1 EP 11738814 A EP11738814 A EP 11738814A EP 2583001 A1 EP2583001 A1 EP 2583001A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive
- transmission
- tracks
- output
- transmitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/04—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying rotary motion
- F16H25/06—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying rotary motion with intermediate members guided along tracks on both rotary members
Definitions
- the application relates to a torque transmission means
- Transmission type can be used in gearboxes of machines and
- transmission elements are characterized by high performance and high reliability. They are easier than gear transmission and in the
- ball gears with periodic tracks on the bodies are known. These ball gears can be classified into gears in which balls interact with periodic tracks of three or more bodies (US 5016487, US 4960003, RU 2179272) or with two bodies (US 4829851, US 4643047, RU 2179672).
- Spherical toothing with two bodies is used in transmissions in which a body performs a planetary motion (US 4829851, US 4643047), or in parallel shaft gearboxes (RU 21 79672).
- the application discloses a transmission with a to a
- Drive tracks are introduced, for example drive tracks for balls.
- the transmission has one or more transmitter body, wherein on the circumference of
- Transmitter body transmission elements such as balls or pins, are provided and one to one
- Output tracks are introduced. At least one of
- Transmission elements engages in one of the drive tracks and at least one of the transmission elements engages in one of the driven tracks.
- the transmission elements are movable on a self-contained orbit
- the circulation movement can be done by movement of the balls on the transmitter body, wherein the
- Orbits are provided on the transmitter body or by a movement of the transmitter body, wherein the
- the orbit is further characterized in that it lies in a plane of revolution, the drive axle and the
- the orbital plane may be stationary relative to a housing or about an axis
- Gear ratio can be set as desired in principle, as long as the friction losses and material and accuracy requirements remain within predetermined limits. This can according to the application in particular to
- the output body and the drive body are arranged concentrically to each other, so that a compact gear is formed.
- Output tracks are shaped so that a rotation of the
- Orbits at a constant rotational speed causes and that the movement of the transmission elements with the constant rotational speed, a movement of the
- Transmission elements formed as balls, so that a Orientation of the transmission element needs to be ignored and a low-friction power transmission is made possible. Furthermore, the transmission elements could be interconnected, so that a defined distance between the transmission elements can be more easily maintained.
- the transmission can be designed so that
- Transmission elements in each case engage one of the driven tracks, wherein between each two transmission elements in each case a first number of drive tracks is located and between each two transmission elements in each case a second number of output tracks and wherein the
- Transmission elements on the self-contained orbit have substantially the same distance.
- the self-contained orbit may be formed according to the application as a circular orbit, so that a particularly uniform movement of the transfer body is made possible.
- Transmitter body are connected to a transmitter carrier which is fixed to a transmission housing. As a result, the transmitter body can be kept stationary while the transfer body rotate on the transmitter body.
- Output body has the outer shape of a cylinder from which an intersection of the cylinder is omitted with a torus. Viewed vividly, this shape corresponds approximately to the shape of an apple gnome and allows a round Orbit of the circulating transfer body. To guide the transmission body may also serve a part of this form, for example, only the upper or only the lower half. This shape is especially true for circular
- the drive body is designed as a hollow cylinder and the output body as
- the drive tracks and the output tracks are each formed as Coriolis spirals. Furthermore, discloses the engine-transmission unit with a transmission according to the application and a vehicle with a motor-gear unit according to the application.
- Figure 1 shows a perspective view of a harmony
- Figure 2 shows a perspective view of
- FIG. 3 shows a perspective sectional drawing of FIG
- FIG. 4 shows a sectional view through the harmony orbit
- Figure 5 shows a partial sectional view of the
- FIG. 6 is a plan view of the harmony orbit transmission of FIG. 1;
- Figure 8 shows a sectional drawing by a harmony
- Figure 9 shows a plan view of a drive pulley of
- FIG. 10 shows a plan view of an output disk of the
- Fig. 1 shows a view of a transmission 10, which in
- harmony orbit transmission 10 hereinafter referred to as harmony orbit transmission 10 or as a harmonic epicyclic gear 10.
- the harmony orbit transmission 10 includes an output body 11, a plurality
- tracks 14 are embedded with a semicircular profile 15.
- Output body 11 is connected to an output shaft 9, which is arranged on the axis of symmetry of the output body 11.
- the output body 11 is shaped so that he
- the output body 11 has the outer shape a cylinder from which the intersection of a torus with the cylinder is omitted.
- each have a circular path 16 is embedded with a semicircular profile 17.
- the balls 18 are interconnected by a ball cage, which is not shown in Fig. 1.
- the transmitter bodies 12 are formed as discs having a radius corresponding to the largest radius of the circular path 16 and having a thickness which is slightly larger than the diameter of the balls 18.
- tracks 20 are embedded with a semi-circular profile 21, which are delimited by guide ridges 22, which are shown in dashed lines in Fig. 1.
- the tracks 20 are particularly well visible in Fig. 3.
- the radii of the semicircular profiles 15, 17, 21 of the tracks of the output body 11, the transmitter body 12 and the drive body 13 are substantially in agreement
- the drive body 13 is connected to a drive shaft, which is arranged on an axis of symmetry of the drive body 13.
- the drive body 13 is arranged so that its axis of symmetry with the symmetry axis 8 of the
- Output body 11 matches.
- the transmitter body 12 are connected to a not shown in Figure 1 Transmitterussi 6, which between the
- the transmitter carrier 6 is anchored stationary, For example, on a housing of the Harmony Orbit transmission 10th
- FIG. 2 shows the output body 11 of the harmony orbit
- the tracks 14 on the outside of the driven body are shaped such that a ball 18, which is located in a track 14 of the driven body 11 and which is restricted in its movement on a plane, the axis of the
- Output body 11 contains, with a predetermined
- Angular velocity on the circular path 16 moves when the output body 11 with another predetermined
- Angular velocity is rotated about its axis 8.
- ratio of the angular velocity on the circular path 16 to the further angular velocity of the output body 11 is a driven-side gear ratio
- the webs 14 also have a constant pitch relative to a plane containing the axis 8.
- the slope is determined at a point of the web 14 by the
- a gradient of, for example, 40 percent corresponds to a drive-side gear ratio of 10: 4.
- This shaping of the webs of the output body 11 can also be used for producing a master mold for the driven body 11, in which a milling cutter milling a web into a blank is moved on a circular path and the blank is simultaneously rotated about its axis of symmetry.
- permanent or lost molds can be created from the master mold.
- Figure 3 shows a cross-sectional view of the Harmony Orbit Transmission 10. Here is the part of the Harmony Orbit
- the symmetry plane is arranged to be
- FIG. 3 also shows a cross section of a part of a connecting ring 24 which is connected to the transmitter carrier 6 and which connects the transmitter bodies 12 to one another.
- the tracks 20 of the drive body 13 are shaped so that they have a constant slope with respect to a plane which is perpendicular to the axis 8 of the output body 13.
- the tracks 14 of the output body 11 and the drive body 13 are further determined by lying on the inside of a torus.
- the track inclinations of the tracks 14 of the output body 11 and the tracks 20 of the drive body 13 are in the embodiment of FIG. 1 in a certain ratio, so that at a constant distance of the balls 18 with each other on the drive side between each ball 18 is a web 20 and on the output side, the balls 18 circulate in adjacent tracks 14.
- the drive-side gear ratio results from the inclination of the tracks 20. If, for example, the inclination of the tracks 20 has a pitch of 10 percent, this results in a drive-side gear ratio of 10 to 1.
- Transmission 10 results from the product of the drive-side gear ratios with the output side Ratio. With gear ratios of 10: 1 and 10: 4, a 25-fold reduction can already be achieved.
- the inclination of the drive-side tracks 20 can be chosen very small. For example, a 1 degree bank pitch gives a drive side
- Transmitter body 12 moves downward until it reaches the lower end of the drive body 13.
- the orbital movement of the balls 18 in the web 16 is indicated by the arrow 27.
- the output body 11 transmits his
- Rotational movement of the output body is indicated by an arrow 28.
- the ball 18 moves up the track 14 of the output body 11 until it reaches the end of the track 14. From there it is through the ball cage of the transmitter body 12 in an upper end of a web 20 of the drive body 13th
- the balls 18 thus describe a periodic circular motion in the web 16 of the
- Transmitter body 12 which may also be referred to as a harmonic orbit. 4 shows a cross-sectional view of the harmony orbit
- Transmitter carrier 6 is for clarity in a
- a drive shaft 30 is connected via a drive carrier 31 to the drive body 13.
- the drive shaft 30 is designed as a hollow shaft which is supported on a ball bearing 34.
- a support shaft 32 is mounted concentrically by means of a rolling bearing 33.
- the Support shaft 32 is connected to the output body 11 on the axis 8 of the output body.
- Transmitter carrier 6 guided between the drive body 13 and the driven body 12.
- An upper part of the fork 35 is connected to a support bar 36 which is fixed to a bracket 37 at one end.
- the support rods 37 are connected to a ring 38 which holds the support rods 37
- Fig. 4 shows a cross-sectional view of the fork 35 of the
- a cross section of the web 16 of the transmitter 12 is indicated by dashed lines. 6 shows a front view of the drive body 13, the output body 11, the transmitter carrier 6 and the
- the ring 38 which comprises the output shaft 8 is fully shown in FIG. Fig. 6 also shows the support rods 36, the ring 38 and the transmitter body 12th hold. For clarity, only two
- Fig. 7 shows a cross-sectional view of another
- Embodiment of a harmony orbit transmission 10 ' is formed as a hollow cylinder, on the inside of webs 20' are introduced.
- Drive body 11 ' is formed as a spindle on the outside of webs 14' are introduced. Relative to a plane which is perpendicular to the axis 8 of the output body 11 ', the tracks 13' of the drive body have a pitch less than 45 degrees and the tracks 14 'of the output body 11' have a pitch greater than 45 degrees.
- a transmitter body 12 ' Between the drive body 13 'and the output body 11' is a transmitter body 12 '.
- Transmitter body 12 ' is formed as a disc having a cross section of a rounded rectangle. On the narrow side of the transmitter body 12 ', a circumferential path 16' is introduced. In the circulating track 16 'are balls 18, which are interconnected by a flexible
- Ball carrier such as a rope, a chain or a crawler are connected.
- Ball cage of the first embodiment corresponds, is not shown in Fig. 7.
- Transmitter body 12 Similar to the first
- the transmitter body 12 are connected to a transmitter carrier which is stationary, for example, anchored to a housing.
- both the drive body and the driven body are designed as a spindle.
- the drive body 13 is designed in a double cone-like shape, similar to the output body 11, but with flat tracks. This makes it especially easy, one
- Transmitter body 12 can be used. With multiple
- Transmitter bodies 12 can then but several
- Output body 13 are driven at the same time.
- Fig. 8 shows a cross-sectional view through another embodiment of a harmony orbit gear 10 ''.
- the drive body 13 'and the output body 11' are each designed as shafts with end plates, which are referred to below as the drive pulley and driven pulley.
- the tracks of the drive pulley and the driven pulley are in the form of Coriolis spirals.
- k enters
- Drive body 13 '' may be formed as a rotor of an internal rotor motor.
- Figure 9 shows a plan view of the drive pulley of the drive body 13 ''.
- the tracks 20 '' of the drive body 13 '' are formed as flat Coriolis spirals.
- FIG. 10 shows a plan view of the driven pulley of FIG.
- the tracks 14 '' of the output body 11 ' are formed as steep Coriolis spirals.
- FIG. 11 shows a plan view of a transmitter holder for four transmitter bodies 12 ". In Fig. 11 is also shown that the balls 18, which on the circumference of a
- Transmitter body 12 '' circulate, are connected by a chain.
- the distance of the webs 20 '' from each other or the webs 14 '' with each other and the distance between the balls 18 with each other is adjusted so that in every n-th track 20 '' of the drive pulley and on every n'-th track 14 ''the driven pulley is a ball, where n, n' are greater than or equal to 1.
- Transmitter body perform another convex path, which lies in a plane, especially in smooth tracks, which resemble an oval or a circle or a rounded polygon.
- Friction losses and wear are lower and the transmission can be operated at a higher speed.
- the direction of rotation from drive to output can be selected in the same direction or in opposite directions by the shape of the webs. Similar to a gear transmission but unlike a Harmony Drive transmission, the elements of the Harmony Orbit transmission are only slightly deformable, so that a reaction of a torque on the gear shape is also low. However, for a given reduction ratio, the Harmony Orbit transmission requires less space compared to a gear transmission that is equivalent to one
- the transmitter body can be moved around its own axis, rather than that the balls rotate around the transmitter body.
- the tracks of the drive body and the output body with respect to a predetermined orientation can be performed in each case as left or right-hand thread.
- the transmitter body to be able to pass even halfway or partially around the transmitter body.
- Drive body be designed as a half-shell.
- the transmitter body can be rigid to the
- Transmitter carrier be attached or be rotatable about its own axis.
- the transmitter body can be interconnected by a ring or be held solely by the transmitter carrier. If the transmitter bodies are rotatable about their own axis, the balls may also be fixedly mounted on the transmitter body. It is also possible to provide instead of balls pins, each in the tracks of the drive body and the Engage output body. For better encapsulation of the
- Harmony orbit gearbox may be provided a transmission housing through which a drive and an output shaft
- Drive and take-off can be realized in different ways.
- the drive body with a shaft instead of the drive body with a shaft
- the drive body can also be connected directly to a rotor of an internal rotor motor. It can also be the inner body used as a drive body and the outer body as a driven body. In this case, the flat tracks are provided on the inner body and the steep tracks are provided on the outer body. "Flat” and “steep” are meant herein with respect to a plane perpendicular to the axis of the output shaft and each refer to an angle less than 45 degrees or greater than 45 degrees. If the outer body serves as a driven body, the output can be done instead of a shaft and the fact that the output body is externally connected to a rim flange.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010017430 | 2010-06-17 | ||
PCT/IB2011/052639 WO2011158210A1 (de) | 2010-06-17 | 2011-06-17 | Harmonic orbit getriebe |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2583001A1 true EP2583001A1 (de) | 2013-04-24 |
Family
ID=44583203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11738814.0A Withdrawn EP2583001A1 (de) | 2010-06-17 | 2011-06-17 | Harmonic orbit getriebe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2583001A1 (de) |
WO (1) | WO2011158210A1 (de) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3242755A (en) * | 1965-02-11 | 1966-03-29 | Manfred R Kuehnle | Toroidal transmission |
US4643047A (en) | 1981-10-20 | 1987-02-17 | Advanced Energy Concepts '81 Ltd. | Speed reducing gearing mechanism employing trochoidally formed gear surfaces for rolling torque transmission |
JPS6110157A (ja) * | 1984-06-22 | 1986-01-17 | Kenji Mimura | 回転伝動装置 |
JPH0762495B2 (ja) | 1985-06-27 | 1995-07-05 | 加茂精工株式会社 | 転動ボ−ル形差動減速機構 |
DE3801930A1 (de) | 1987-11-19 | 1989-06-01 | Bollmann Hydraulik | Bollmann-getriebe |
US4960003A (en) | 1989-08-04 | 1990-10-02 | Hartley Joseph A | Transmission |
RU2179672C2 (ru) | 1998-09-29 | 2002-02-20 | Чуркин Геннадий Михайлович | Передача |
US7025705B2 (en) * | 2002-11-15 | 2006-04-11 | Kuehnle Manfred R | Toroidal transmission |
-
2011
- 2011-06-17 EP EP11738814.0A patent/EP2583001A1/de not_active Withdrawn
- 2011-06-17 WO PCT/IB2011/052639 patent/WO2011158210A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011158210A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2011158210A1 (de) | 2011-12-22 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20130117 |
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Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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DAX | Request for extension of the european patent (deleted) | ||
19U | Interruption of proceedings before grant |
Effective date: 20130117 |
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19W | Proceedings resumed before grant after interruption of proceedings |
Effective date: 20140801 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TQ-SYSTEMS GMBH |
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17Q | First examination report despatched |
Effective date: 20150210 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20150623 |