CN204900696U - Decelerator and wheel unit in wheel - Google Patents
Decelerator and wheel unit in wheel Download PDFInfo
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- CN204900696U CN204900696U CN201520543250.XU CN201520543250U CN204900696U CN 204900696 U CN204900696 U CN 204900696U CN 201520543250 U CN201520543250 U CN 201520543250U CN 204900696 U CN204900696 U CN 204900696U
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- inner ring
- planetary rollers
- wheel
- speed reducer
- movable part
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- 230000007246 mechanism Effects 0.000 claims abstract description 80
- 239000003638 chemical reducing agent Substances 0.000 claims description 43
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000003068 static effect Effects 0.000 claims description 6
- 239000000969 carrier Substances 0.000 abstract 3
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 241000278713 Theora Species 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
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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
- F16H2001/325—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising a carrier with pins guiding at least one orbital gear with circular holes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Abstract
The utility model provides a decelerator and wheel unit in wheel. Decelerator has in the wheel: sun roller, sun roller uses rotation axis rotatory as the center, a plurality of planet rollers, the configuration of a plurality of planet rollers is in around the sun roller, the annular inner ring of circle, the inner ring with the contact of a plurality of planet rollers, a housing, the casing surrounds the inner ring, a plurality of planet carriers round pin, a plurality of planet carriers round pin will each supporting in a plurality of planet rollers is for rotating, the wheel, the wheel is fixed in the tip of a plurality of planet carriers round pin, and loading system, the loading system orientation the planet roller is pressed the inner ring, in a plurality of planet rollers each all through with sun roller and contact of both of these of inner ring and follow sun roller receive power rotation on one side with rotation axis is the center revolution, in the wheel decelerator still have with the inner ring with the releasing mechanism that the planet roller pull open.
Description
Technical field
The utility model relates to speed reducer and wheel unit in wheel.
Background technique
In the equipment such as wheelchair and automatic guided vehicle, increase torque by making the rotary motion obtained from motor slow down, thus make rotation of wheel.Be known to: speed reducer in the wheel that the inner side being in the past used in wheel is in such devices configured with speed reducer.In Japanese Unexamined Patent Publication 2008-17588 publication, such as describe an example of speed reducer in wheel.In speed reducer in Japanese Unexamined Patent Publication 2008-17588 publication, use has sun gear and planetary planetary gears carrys out transferring power (reference the 0027th section etc.).
But, in the equipment employing speed reducer in wheel, if there is motor failure or power-off, then the wheel being connected to this motor cannot be made to rotate.In this case, although personnel attempt manually to promote this equipment, if be provided with the high reducing gear of reduction speed ratio (i.e. torque magnifiation in depth), then need very large external force that wheel is rotated.
Particularly when each take turns be built-in with motor, there are the following problems: as long as at least one motor in multiple motor stops, be then difficult to the Whole Equipment employing speed reducer in wheel to start.
External force required when manually making wheel rotate to be decreased through, proposes there is following scheme: the part cutting off the power transfer path in reducing gear.But, as Japanese Unexamined Patent Publication 2008-17588 publication, when being engaged with each other transferring power by gear, cannot only by removing being engaged with each other of gear by more drawn apart from one another for gear.Therefore, in order to remove engagement, at least one gear must be made significantly to be shifted.
Model utility content
The purpose of this utility model is to provide a kind of following structure: in wheel in speed reducer, when hope makes wheel rotate by external force, can cut off a part for reducing gear with small displacement amount, reduces the external force made needed for wheel rotation.
An exemplary mode of execution of the application is speed reducer in a kind of wheel, and have: sun roller, described sun roller rotates centered by spin axis; Multiple planetary rollers, described multiple planetary rollers is configured in around described sun roller; Circular inner ring, described inner ring contacts with described multiple planetary rollers; Casing, inner ring described in described cabinet enclosure; Multiple planet carrier pin, each in described multiple planetary rollers supports as rotating by described multiple planet carrier pin; Wheel, describedly takes turns the end being fixed on described multiple planet carrier pin; And pressurizing mechanism, described pressurizing mechanism presses described inner ring to described planetary rollers, each in described multiple planetary rollers is by contacting with described sun roller and described both inner ring and receiving power rotation on one side while revolve round the sun centered by described spin axis from described sun roller, describedly take turns interior speed reducer and also have releasing mechanism, described inner ring and described planetary rollers are pulled open by described releasing mechanism.
At least one party in preferred described planetary rollers and described inner ring has the plane of inclination tilted relative to described spin axis, described pressurizing mechanism is by pressing described inner ring in the axial direction, the opposing party in described plane of inclination and described planetary rollers and described inner ring is contacted with each other, thus to radially inner side, described planetary rollers is pressurizeed, described inner ring and described planetary rollers are pulled open by described releasing mechanism in the axial direction.
Preferred described inner ring has: first ring parts, and described first ring parts are positioned at the axial side of described planetary rollers; And second ring portion, described second ring portion is positioned at the axial opposite side of described planetary rollers, described pressurizing mechanism is by pressing described first ring parts to described planetary rollers side in the axial direction, described planetary rollers is held between described first ring parts and described second ring portion, and to radially inner side, described planetary rollers is pressurizeed.
Preferred described planetary rollers has: big diametral plane, and described big diametral plane contacts with the outer circumferential face of described sun roller; And little diametric plane, described little diametric plane is than described big diametral plane near described planet carrier pin, and described little diametric plane is described plane of inclination.
Preferred described releasing mechanism makes the point of action of a part for the outer periphery as described inner ring to the direction displacement leaving described planetary rollers, described casing has the point contact when described releasing mechanism work with a point cantact, described fulcrum is a part different from described point of action for the outer periphery of described inner ring, when the work of described releasing mechanism, described inner ring centered by described fulcrum relative to the planar tilt orthogonal with described spin axis.
Preferably when described releasing mechanism does not work, between the described fulcrum and described point contact of described inner ring, there is gap.
Preferred described releasing mechanism has: movable part, and described movable part moves relative to described casing; And toggle clamp mechanism, described toggle clamp mechanism switches the position of described movable part between two stably static position of rest, and described inner ring is shifted along with the displacement of described movable part.
Preferably have a kind of wheel unit, have: speed reducer in wheel; And motor, described motor makes described sun roller rotate.
According to an exemplary mode of execution of the present utility model, when hope makes wheel rotate by external force, by releasing mechanism, planetary rollers and inner ring are pulled open.Thus, because a part for reducing gear can be cut off with small displacement amount, therefore, it is possible to reduce the external force made needed for wheel rotation.
By referring to the detailed description of accompanying drawing to preferred implementation of the present utility model, above-mentioned and other features, key element, step, feature and advantage of the present utility model more clearly can be understood.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the exemplary wheel unit involved by a mode of execution of the present utility model.
Fig. 2 is the figure of sun roller, multiple planetary rollers, inner ring and the casing observed from the A-A position Fig. 1.
Fig. 3 is the partial sectional view of speed reducer in wheel.
Fig. 4 is the longitudinal section of wheel unit when operating stem is given prominence to.
Fig. 5 is the figure representing example cam being used for releasing mechanism.
Fig. 6 is the figure representing example cam being used for releasing mechanism.
Embodiment
Below, with reference to accompanying drawing, an exemplary mode of execution of the present utility model is described.In addition, in this application, respectively the direction of the rotation axis parallel with sun roller is called " axis ", the direction orthogonal with the spin axis of sun roller is called " radial direction ", the direction along the circular arc centered by the spin axis of sun roller is called " circumference ".But above-mentioned " parallel direction " also comprises almost parallel direction.Further, above-mentioned " orthogonal direction " also comprises roughly orthogonal direction.Further, the convenience below in order to illustrate, is called the right side (axial side) in Fig. 1 " input side " respectively, is called " outlet side " in the left side (axial opposite side) in Fig. 1.
Fig. 1 is the longitudinal section comprising the wheel unit 1 of speed reducer 300 in wheel involved by an exemplary mode of execution of the present utility model.This wheel unit 1 is by the rotary motion of to be the converting rotary motion of the first rotating speed be second rotating speed lower than the first rotating speed obtained from motor 100, and makes the unit that wheel 70 rotates.Wheel unit 1 is such as assembled in the wheel of wheelchair, automatic guided vehicle, body sense car, electric walking booster car, chair-type electric motor car, electric vehicle etc. and is used.But, of the present utility modelly take turns the purposes that interior speed reducer and wheel unit also can be used in other.
As shown in Figure 1, the wheel unit 1 of a mode of execution has speed reducer 300 in motor 100, mounting plate 200 and wheel.
Motor 100 is motor of the power source as wheel unit 1.As shown in Figure 1, motor 100 has motor case 101 and axle 102.Be provided with in the inside of motor case 101: the stator with multiple coil; And there is the rotor of magnet.Axle 102 configures along spin axis 9, and the end of the outlet side of axle 102 is given prominence to from motor case 101.During to coil electricity, by the magnetic force produced between stator and rotor, rotor and axle 102 are rotated centered by spin axis 9.
Mounting plate 200 is for speed reducer 300 in wheel is installed on the parts of the tabular of motor 100.Mounting plate 200 generally perpendicularly configures relative to spin axis 9.Mounting plate 200 is fixed on motor case 101 near the end of its radially inner side.In the example in fig 1, mounting plate 200 is screwed on the face of the outlet side of motor case 101.But the fixation method that mounting plate 200 is fixed on motor case 101 also can be the method beyond screw thread is fixed.Further, mounting plate 200 is fixed on casing 50 described later near the end of its radial outside.Thus, motor case 101 and casing 50 arranged coaxial.
In wheel, speed reducer 300 rotary motion of axle 102 is slowed down and is passed to the device of wheel 70.Use the planetary gear speed reducing mechanism of trailed model to take turns interior speed reducer 300 as this, so-called trailed model planetary gear speed reducing mechanism refers to: contact with each other by making the surface of the surface of sun roller 10 and multiple planetary rollers 20 and rotate the planetary gear speed reducing mechanism of transferring power.As shown in Figure 1, in the wheel of a mode of execution, speed reducer 300 has a sun roller 10, multiple planetary rollers 20, inner ring 30, pressurizing mechanism 40, casing 50, multiple planet carrier pin 60, wheel 70 and releasing mechanism 80.
Fig. 2 is the figure of sun roller 10, multiple planetary rollers 20, inner ring 30 and the casing 50 observed from the A-A position Fig. 1.Fig. 3 be comprise planetary rollers 20, inner ring 30, pressurizing mechanism 40, casing 50 and releasing mechanism 80 wheel in the partial sectional view of speed reducer 300.Below, with reference to Fig. 1 ~ Fig. 3, the details of speed reducer 300 in wheel is described.
Sun roller 10 is the parts with the cylindrical shape of spin axis 9 arranged coaxial.The axle 102 of motor 100 is pressed into the circular hole of the central authorities of sun roller 10.Thus, sun roller 10 is fixed in the outer circumferential face of axle 102.When making motor 100 drive, sun roller 10 also together rotates with the first rotating speed with axle 102 centered by spin axis 9.
Multiple planetary rollers 20 is the discoideus parts of the surrounding being configured in sun roller 10.As shown in Figure 2, in one embodiment, around sun roller 10, three planetary rollers 20 are equally spaced configured with.But in wheel, the quantity of the planetary rollers 20 that speed reducer 300 has also can be two, can also be more than four.Each planetary rollers 20 is entreated wherein has pin-and-hole 21.Planet carrier pin 60 described later is inserted in this pin-and-hole 21.Each planetary rollers 20 is supported as rotating freely by this planet carrier pin 60.
As shown in figures 1 and 3, the planetary rollers 20 of an exemplary mode of execution of the present utility model has: the circular heavy section 22 surrounding pin-and-hole 21; And further circular thinner wall section 23 of surrounding the outside of heavy section 22.The axial thickness of thinner wall section 23 is thinner than the axial thickness of heavy section 22.The outer circumferential face of thinner wall section 23 is the big diametral plane 24 contacted with the outer circumferential face of sun roller 10.Further, heavy section 22 and the intersection of thinner wall section 23 are provided with little diametric plane 25, and little diametric plane 25 is the pair of angled face contacted with inner ring 30 described later.Each little diametric plane 25 is to tilt along with the mode leaving thinner wall section 23 and reduced vertically.
Like this, the face that the face that the same sun roller 10 of the planetary rollers 20 of a mode of execution contacts contacts with the same inner ring 30 of planetary rollers 20 is different.And, with inner ring 30 contact face than with sun roller 10 contact face near planet carrier pin 60.Like this, the revolution speed along inner ring 30 of the planetary rollers 20 that can slow down.Consequently, compared with situation about contacting with the same face of planetary rollers with sun roller and inner ring, the reduction speed ratio of speed reducer 300 in wheel can be improved.
Inner ring 30 has: the first ring parts 31 being configured in the input side of thinner wall section 23; And be configured in second ring portion 32 of outlet side of thinner wall section 23.First ring parts 31 and the second ring portion 32 are the circular parts centered by spin axis 9 respectively.As shown in Figure 3, the inner peripheral portion of first ring parts 31 is provided with the first circular pressurized plane 311.First pressurized plane 311 is opposed with the little diametric plane 25 of the input side of planetary rollers 20 and bending in the mode outstanding to this little diametric plane 25.Further, the inner peripheral portion of the second ring portion 32 is provided with the second circular pressurized plane 321.Second pressurized plane 321 is opposed with the little diametric plane 25 of the outlet side of planetary rollers 20 and bending in the mode outstanding to this little diametric plane 25.Little a pair diametric plane 25 of each planetary rollers 20 contacts with the second pressurized plane 321 with the first pressurized plane 311 respectively.
Pressurizing mechanism 40 is the mechanisms of pressurizeing to inner ring 30 to outlet side.The pressurizing mechanism 40 of one mode of execution has multiple helical spring 41.Multiple helical spring 41 is equally spaced configured between first ring parts 31 and mounting plate 200 in the circumferential.Each helical spring 41 is compressed shorter than natural length in the axial direction.Therefore, come to pressurize to outlet side to first ring parts 31 vertically by the elastic force of helical spring 41.
When pressurizeing to outlet side to first ring parts 31, planetary rollers 20 is clamped between the first pressurized plane 311 of first ring parts 31 and the second pressurized plane 321 of the second ring portion 32.And while the first pressurized plane 311 presses the little diametric plane 25 of the input side giving as security planetary rollers 20, the second pressurized plane 321 presses the little diametric plane 25 of the outlet side of planetary rollers 20.Thus, to radially inner side, planetary rollers 20 is pressurizeed.Consequently, planetary rollers 20 and sun roller 10 are retained as the state contacted with each other.
Like this, in an exemplary mode of execution of the present utility model, by the little diametric plane 25 tilted relative to spin axis 9, the pressing force of the axis applied by pressurizing mechanism 40 is converted to towards the plus-pressure of radially inner side.As long as pressurizing mechanism 40 produces the pressing force (i.e. the pressing force in a direction) towards outlet side, without the need to producing towards the pressing force (i.e. the pressing force of multiple directions) of radially inner side.Therefore, it is possible to simplify the structure of pressurizing mechanism 40.In addition, pressurizing mechanism 40 also can use other elastic members such as plate-shaped springs to replace helical spring 41.
By above-mentioned structure, each planetary rollers 20 in multiple planetary rollers 20 contacts with both inner ring 30 with sun roller 10 all the time.Therefore, when sun roller 10 rotates, the power that multiple planetary rollers 20 receives from sun roller 10 by means of the friction between sun roller 10 thus rotation.Further, multiple planetary rollers 20 revolves round the sun around spin axis 9 along inner ring 30 by means of the friction between inner ring 30.At this moment, the rotating speed of the revolution of planetary rollers 20 is second rotating speed lower than the first rotating speed.
Casing 50 is the roughly cylinder-like parts of the surrounding surrounding multiple planetary rollers 20, inner ring 30 and bearing portion described later 73.The casing 50 of one mode of execution has: large-diameter portion 51; And be positioned at than large-diameter portion 51 by the position of outlet side and the diameter minor diameter part 52 less than the diameter of large-diameter portion 51.Large-diameter portion 51 is positioned at the radial outside of multiple planetary rollers 20 and inner ring 30.Minor diameter part 52 is positioned at the radial outside of bearing portion 73 described later.Casing 50 at the end winding support of the input side of large-diameter portion 51 in mounting plate 200.
Further, as shown in Figure 1, the inner peripheral surface of large-diameter portion 51 is provided with a point contact 53.When releasing mechanism 80 described later works, the fulcrum 312 as a part for the outer periphery of first ring parts 31 contacts with a point contact 53.And first ring parts 31 tilt centered by this fulcrum 312.But, when releasing mechanism 80 described later does not work, between the fulcrum 312 and a point contact 53 of first ring parts 31, there is small gap.Therefore, first ring parts 31 contact with multiple planetary rollers 20 and can not be hindered by a point contact 53.
Multiple planetary rollers 20 supports as rotating by multiple planet carrier pin 60 respectively.Each planet carrier pin 60 be columned parts and with spin axis 9 parallel configuration.The end of the input side of each planet carrier pin 60 is inserted into the pin-and-hole 21 of planetary rollers 20.Further, first round parts 71 described later are fixed on by press-in etc. in the end of the outlet side of each planet carrier pin 60.
Wheel 70 has first round parts 71 and the second wheel component 72.First round parts 71 form the central part of wheel 70 and the parts rounded when end on observation.First round parts 71 are positioned at than sun roller 10 and multiple planetary rollers 20 by outlet side and than the position of casing 50 by radially inner side.Multiple planet carrier pins 60 are individually fixed in the face of the input side of first round parts 71.Further, circular recess 711 is provided with in the face of the outlet side of first round parts 71.Thus, compared with not there is the situation of recess 711, wheel 70 lightweight of a mode of execution can be made.
Second wheel component 72 is parts of the ring-type of the radial outside being positioned at first round parts 71.Second wheel component 72 has annular plate section 721 and outer cylindrical portion 722.Annular plate section 721 is expanded in the form of a ring around first round parts 71.The ora terminalis of the radially inner side of annular plate section 721 to be such as bolted etc. and to be fixed on first round parts 71.Outer cylindrical portion 722 cylindrically extends from the end of the radial outside of annular plate section 721 to input side.Outer cylindrical portion 722 is positioned at than the position of casing 50 by radial outside.
When using wheel unit 1, such as, the tire of rubber is installed at the outer circumferential face of outer cylindrical portion 722.In this case, the outer circumferential face being installed on this tire of wheel 70 is ground plane.But, also can omit tire, and the outer circumferential face making outer cylindrical portion 722 is directly and earth surface.Further, also the wheel hub that wheel 70 connects multiple spoke as the central authorities at wheel can be used.
Between casing 50 and wheel 70, there is bearing portion 73.In one embodiment, between the inner peripheral surface of the minor diameter part 52 of casing 50 and the outer circumferential face of the cylindrical shape of first round parts 71, configure the crossed roller bearing as bearing portion 73.But, the bearing of the other types such as ball bearing or roller bearing also can be used to replace crossed roller bearing.
When multiple planetary rollers 20 revolves round the sun with the second rotating speed after deceleration, multiple planet carrier pin 60 also concomitantly rotates with the second rotating speed with it centered by spin axis 9.Further, when multiple planet carrier pin 60 rotates with the second rotating speed, the wheel 70 being fixed on planet carrier pin 60 also rotates with the second rotating speed centered by spin axis 9.Thus, wheel is driven.
Releasing mechanism 80 is mechanisms inner ring 30 pulled open from planetary rollers 20.Such as when needing manually to make wheel 70 rotate because motor 10 cannot be made to drive for power-off etc., operated release mechanism 80.As shown in figures 1 and 3, the releasing mechanism 80 of a mode of execution has hook screw 81, nut 82, rope 83, multiple pulley 84, operating stem 85 and toggle clamp mechanism 86.
Hook screw 81 is by from input side Insertion action point 313, and described point of action 313 is the different part of in the outer periphery of first ring parts 31 from above-mentioned fulcrum 312.Nut 82 is installed on the end outstanding to the outlet side of first ring parts 31 of hook screw 81.Prevent hook screw 81 from coming off to input side thus.Hook screw 81 is fixed in one end of rope 83.Further, rope 83 is drawn from hook screw 81 to the input side of mounting plate 200 and via multiple pulley 84, and makes the other end of rope 83 be fixed on mounting plate 200.
Operating stem 85 configures in the mode of terminal part facing to the rope 83 be set up between multiple pulley 84.In taking turns during speed reducer 300 driven, operating stem 85 is configured at the retreating position (position of Fig. 1 and Fig. 3) not pressing rope 83.In this condition, the length that the ratio mounting plate 200 of restricting 83 extends to outlet side.Therefore, first ring parts 31 contact with multiple planetary rollers 20 because of the pressure of helical spring 41.
On the other hand, when hope makes wheel 70 rotate by external force, the bar 861 of operation toggle clamp mechanism 86, and operating stem 85 is given prominence to.Fig. 4 is the longitudinal section of the wheel unit 1 when operating stem 85 is given prominence to.As shown in Figure 4, when making operating stem 85 give prominence to, the length that the ratio mounting plate 200 of rope 83 extends to outlet side shortens.Therefore, overcome the pressure of helical spring 41 and the point of action 313 of first ring parts 31 is shifted to input side.Consequently, multiple in the axial direction planetary rollers 20 is opened with first ring parts 31.
At this moment, the fulcrum 312 of first ring parts 31 contacts with a point contact 53.And, first ring parts 31 centered by fulcrum 312 relative to the planar tilt orthogonal with spin axis 9.Like this, only by making a part for the outer periphery of first ring parts 31 be shifted, just first ring parts 31 can be pulled open from whole planetary rollers 20.
Like this, take turns in interior speed reducer 300 at this, when hope makes wheel 70 rotate by external force, first ring parts 31 can be pulled open by releasing mechanism 80 from multiple planetary rollers 20.Thus, a part for reducing gear is cut off.Wheel 70 is made to rotate required external force therefore, it is possible to reduce.Further, planetary rollers 20 is not being engaged with each other of gear with the contacting part of first ring parts 31, but does not have irregular face to contact with each other.Therefore, only by making first ring parts 31 be shifted minutely, planetary rollers 20 and first ring parts 31 just can be cut off.
The structure of releasing mechanism 80 can be also identical structure with a mode of execution.But as shown in a mode of execution, if make pressurizing mechanism 40 press, direction that the direction of first ring parts 31 and releasing mechanism 80 make first ring parts 31 be shifted is axis, then easily simplify the structure of pressurizing mechanism 40 and releasing mechanism 80.
Multiple pulleys 84 and the toggle clamp mechanism 86 of releasing mechanism 80 are installed on casing 50.Further, when operating toggle clamp mechanism 86, the operating stem 85 as movable part is shifted relative to casing 50.That is, the position of operating stem 85 switches between two position of rest.When no matter operating stem 85 is switched to the position of rest of Fig. 1 or when switching to the position of rest of Fig. 4, toggle clamp mechanism 86 all can make operating stem 85 stably static.Therefore, without the need to applying power to operating stem 85 constantly, just first ring parts 31 can be maintained any state in the state that the state that contacts with planetary rollers 20 is separated with from planetary rollers 20.
Above, an exemplary mode of execution of the present utility model is illustrated, but the utility model is not limited to an above-mentioned mode of execution.
Fig. 5 and Fig. 6 is the figure representing example cam 87A being used for releasing mechanism 80A.Shape during the overlooking of cam 87A is shown in the top of each figure of Fig. 5 and Fig. 6 simultaneously.In this variation, between the point of action 313A and the second ring portion 32A of first ring parts 31A, be configured with cam 87A.Cam 87A has major diameter 871A and minor axis 872A, and cam 87A can rotate centered by the rotation axis 870A of radial direction extension.
In taking turns during speed reducer 300A driven, as shown in Figure 5, cam 87A is configured with minor axis 872A towards the mode of axis.In this condition, first ring parts 31A does not contact with cam 87A with both the second ring portion 32A.Therefore, first ring parts 31A contacts with planetary rollers 20A with the second ring portion 32A and is not hindered by cam 87A.
On the other hand, when hope makes wheel rotate by external force, centered by rotation axis 870A, cam 87A is made to rotate 90 degree.The rotation of cam 87A such as can realize by operating the bar (omit and illustrate) be connected with cam 87A.Thus, as shown in Figure 6, cam 87A is configured with major diameter 871A towards the mode of axis.Like this, the two ends of the major diameter 871A of cam 87A contact with the second ring portion 32A with first ring parts 31A, thus strut the axially spaced-apart of two parts.In the example of fig. 6, overcome the pressure of helical spring 41A and the point of action 313A of first ring parts 31A is shifted to input side.Consequently, first ring parts 31A tilts, thus multiple planetary rollers 20A and first ring parts 31A is opened.Thereby, it is possible to reduce the external force made needed for wheel rotation.
Further, except the example of an above-mentioned mode of execution and Fig. 5 ~ Fig. 6, the linkage mechanism etc. be combined with as the parts of rigid body also can be used to pull open first ring parts from planetary rollers.Further, first ring parts also can be made not to be shifted to input side obliquely.Further, in the example of an above-mentioned mode of execution and Fig. 5 ~ Fig. 6, manually operating stem makes releasing mechanism action.But, the power of motor etc. also can be used to make releasing mechanism action.
Further, in the example of an above-mentioned mode of execution and Fig. 5 ~ Fig. 6, planetary rollers and inner ring has been cut off by making first ring dislodged parts.But, also can cut off planetary rollers and inner ring by making the second ring portion or planetary rollers displacement.
Further, in an above-mentioned mode of execution, the plane of inclination of planetary rollers and the plane of inclination of inner ring are contacted with each other.But, also can be that the face of either party contacted with each other of planetary rollers and inner ring is plane of inclination.And, contact with the opposing party in inner ring with planetary rollers with this plane of inclination of the side in inner ring as long as make to be arranged at planetary rollers.
Further, in an above-mentioned mode of execution, wheel is formed by two parts.But wheel also can be formed by parts.
Further, in an above-mentioned mode of execution, the face contacted with sun roller 10 of planetary rollers 20 is different with the face contacted with inner ring 30 of planetary rollers 20.But structure of taking turns interior speed reducer of the present utility model also can be: the face contacted with sun roller of planetary rollers is same with planetary rollers with the face of interior loop contacts.
The metal of high strength such as can be used as the material forming each parts of taking turns interior speed reducer.But, as long as the material of each parts can bear load in use, also need not metal be defined as.
Further, in wheel, the shape of the detail section of speed reducer and wheel unit also can be different from the shape shown in each figure of the application.Further, in the scope do not conflicted, each key element occurred can also suitably be combined in above-mentioned mode of execution and variation.
Claims (12)
1. a speed reducer in wheel, has:
Sun roller, described sun roller rotates centered by spin axis;
Multiple planetary rollers, described multiple planetary rollers is configured in around described sun roller;
Circular inner ring, described inner ring contacts with described multiple planetary rollers;
Casing, inner ring described in described cabinet enclosure;
Multiple planet carrier pin, each in described multiple planetary rollers supports as rotating by described multiple planet carrier pin;
Wheel, describedly takes turns the end being fixed on described multiple planet carrier pin; And
Pressurizing mechanism, described pressurizing mechanism presses described inner ring towards described planetary rollers,
Each in described multiple planetary rollers by contacting with described sun roller and described both inner ring and receiving power rotation on one side while revolve round the sun centered by described spin axis from described sun roller,
Described feature of taking turns interior speed reducer is also have:
Releasing mechanism, described inner ring and described planetary rollers are pulled open by described releasing mechanism.
2. according to claim 1ly take turns interior speed reducer, it is characterized in that,
At least one party in described planetary rollers and described inner ring has the plane of inclination tilted relative to described spin axis,
Described pressurizing mechanism by pressing described inner ring in the axial direction, makes the opposing party in described plane of inclination and described planetary rollers and described inner ring contact with each other, thus pressurizes to described planetary rollers to radially inner side,
Described inner ring and described planetary rollers are pulled open by described releasing mechanism in the axial direction.
3. according to claim 2ly take turns interior speed reducer, it is characterized in that,
Described inner ring has:
First ring parts, described first ring parts are positioned at the axial side of described planetary rollers; And
Second ring portion, described second ring portion is positioned at the axial opposite side of described planetary rollers,
Described planetary rollers, by pressing described first ring parts to described planetary rollers side in the axial direction, is held between described first ring parts and described second ring portion by described pressurizing mechanism, and pressurizes to radially inner side to described planetary rollers.
4. speed reducer in the wheel according to Claims 2 or 3, is characterized in that,
Described planetary rollers has:
Big diametral plane, described big diametral plane contacts with the outer circumferential face of described sun roller; And
Little diametric plane, described little diametric plane than described big diametral plane near described planet carrier pin,
Described little diametric plane is described plane of inclination.
5. speed reducer in the wheel according to Claims 2 or 3, is characterized in that,
Described releasing mechanism makes the point of action of a part for the outer periphery as described inner ring to the direction displacement leaving described planetary rollers,
Described casing has the point contact when described releasing mechanism work with a point cantact, and described fulcrum is a part different from described point of action for the outer periphery of described inner ring,
When the work of described releasing mechanism, described inner ring centered by described fulcrum relative to the planar tilt orthogonal with described spin axis.
6. according to claim 4ly take turns interior speed reducer, it is characterized in that,
Described releasing mechanism makes the point of action of a part for the outer periphery as described inner ring to the direction displacement leaving described planetary rollers,
Described casing has the point contact when described releasing mechanism work with a point cantact, and described fulcrum is a part different from described point of action for the outer periphery of described inner ring,
When the work of described releasing mechanism, described inner ring centered by described fulcrum relative to the planar tilt orthogonal with described spin axis.
7. according to claim 6ly take turns interior speed reducer, it is characterized in that,
When described releasing mechanism does not work, between the described fulcrum and described point contact of described inner ring, there is gap.
8. speed reducer in the wheel according to any one in claims 1 to 3, is characterized in that,
Described releasing mechanism has:
Movable part, described movable part moves relative to described casing; And
Toggle clamp mechanism, described toggle clamp mechanism switches the position of described movable part between two stably static position of rest,
Described inner ring is shifted along with the displacement of described movable part.
9. according to claim 4ly take turns interior speed reducer, it is characterized in that,
Described releasing mechanism has:
Movable part, described movable part moves relative to described casing; And
Toggle clamp mechanism, described toggle clamp mechanism switches the position of described movable part between two stably static position of rest,
Described inner ring is shifted along with the displacement of described movable part.
10. according to claim 5ly take turns interior speed reducer, it is characterized in that,
Described releasing mechanism has:
Movable part, described movable part moves relative to described casing; And
Toggle clamp mechanism, described toggle clamp mechanism switches the position of described movable part between two stably static position of rest,
Described inner ring is shifted along with the displacement of described movable part.
11. according to claim 7ly take turns interior speed reducer, it is characterized in that,
Described releasing mechanism has:
Movable part, described movable part moves relative to described casing; And
Toggle clamp mechanism, described toggle clamp mechanism switches the position of described movable part between two stably static position of rest,
Described inner ring is shifted along with the displacement of described movable part.
12. 1 kinds of wheel units, is characterized in that having:
Speed reducer in wheel described in any one in claims 1 to 3; And
Motor, described motor makes described sun roller rotate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-152084 | 2014-07-25 | ||
| JP2014152084A JP6472958B2 (en) | 2014-07-25 | 2014-07-25 | Wheel-in speed reducer and wheel unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900696U true CN204900696U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510441664.6A Active CN105299150B (en) | 2014-07-25 | 2015-07-24 | Deceleration device and wheel unit in wheel |
| CN201520543250.XU Withdrawn - After Issue CN204900696U (en) | 2014-07-25 | 2015-07-24 | Decelerator and wheel unit in wheel |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510441664.6A Active CN105299150B (en) | 2014-07-25 | 2015-07-24 | Deceleration device and wheel unit in wheel |
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| Country | Link |
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| JP (1) | JP6472958B2 (en) |
| CN (2) | CN105299150B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299150A (en) * | 2014-07-25 | 2016-02-03 | 日本电产新宝株式会社 | In-wheel reduction gear and wheel unit |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6949581B2 (en) * | 2017-06-27 | 2021-10-13 | ナブテスコ株式会社 | Decelerator |
| EP3943779A4 (en) * | 2019-03-20 | 2022-11-09 | NSK Ltd. | Frictional roller reducer |
| CN110946720B (en) * | 2019-11-15 | 2024-05-28 | 江汉大学 | Wheelchair |
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| JPS57130042U (en) * | 1981-02-09 | 1982-08-13 | ||
| IT1186592B (en) * | 1985-07-10 | 1987-12-04 | Riva Calzoni Spa | PLANETARY REDUCER FOR THE MOTORIZATION OF TRACKED VEHICLES AND EARTH-MOVING MACHINES IN GENERAL |
| JPH0674831B2 (en) * | 1990-12-07 | 1994-09-21 | 崇 高橋 | Traction type transmission |
| JP2002078289A (en) * | 2000-08-31 | 2002-03-15 | Nidec-Shimpo Corp | Rotary drive device |
| JP2003174246A (en) * | 2001-12-07 | 2003-06-20 | Ricoh Elemex Corp | Substrate inspection apparatus, and substrate housing frame therefor |
| JP2008017588A (en) * | 2006-07-05 | 2008-01-24 | Nidec-Shimpo Corp | Driving mechanism |
| JP2008196657A (en) * | 2007-02-15 | 2008-08-28 | Toyota Motor Corp | Number of revolution estimation device of transmission |
| US7874955B2 (en) * | 2007-09-28 | 2011-01-25 | Patterson Bicycle Transmission, Llc | Bicycle transmission system |
| CN203162003U (en) * | 2013-02-19 | 2013-08-28 | 陈惠娜 | Planetary gear reducer with planet gear mechanism |
| CN203248680U (en) * | 2013-03-20 | 2013-10-23 | 沈观耕 | Heavy oil heater planet with sun wheel mechanism |
| JP6472958B2 (en) * | 2014-07-25 | 2019-02-20 | 日本電産シンポ株式会社 | Wheel-in speed reducer and wheel unit |
-
2014
- 2014-07-25 JP JP2014152084A patent/JP6472958B2/en active Active
-
2015
- 2015-07-24 CN CN201510441664.6A patent/CN105299150B/en active Active
- 2015-07-24 CN CN201520543250.XU patent/CN204900696U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299150A (en) * | 2014-07-25 | 2016-02-03 | 日本电产新宝株式会社 | In-wheel reduction gear and wheel unit |
| CN105299150B (en) * | 2014-07-25 | 2018-04-10 | 日本电产新宝株式会社 | Deceleration device and wheel unit in wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105299150B (en) | 2018-04-10 |
| JP6472958B2 (en) | 2019-02-20 |
| CN105299150A (en) | 2016-02-03 |
| JP2016031075A (en) | 2016-03-07 |
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