CN205479194U - Planet roll -type power transfer device - Google Patents
Planet roll -type power transfer device Download PDFInfo
- Publication number
- CN205479194U CN205479194U CN201620066786.1U CN201620066786U CN205479194U CN 205479194 U CN205479194 U CN 205479194U CN 201620066786 U CN201620066786 U CN 201620066786U CN 205479194 U CN205479194 U CN 205479194U
- Authority
- CN
- China
- Prior art keywords
- outer peripheral
- peripheral face
- internal ring
- bearing
- power transmission
- 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- Withdrawn - After Issue
Links
- 230000008093 supporting effect Effects 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims description 125
- 230000005540 biological transmission Effects 0.000 claims description 86
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 241000222712 Kinetoplastida Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
- F16H13/06—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members with members having orbital motion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a planet roll -type power transfer device with: first rotation axis, it has sun roller, first inner ring, its circumference for the shell removes and is restricted, the second inner ring, it is connected with the second rotation axis, planet roller more than two, its and sun roller, first inner ring and the contact of second inner ring, the planet carrier, it is through the planet spindle unit with the supporting of planet roller for rotating, and the bearing, it is the planet carrier supporting can be rotatory for first rotation axis. The planet carrier has: first planet carrier part, its supporting link up the first end of the planet spindle unit of planet roller, and second planet carrier part, its the second end that supports the planet spindle unit. The bearing has: first bearing, its position lean on the first end side than sun roller supports first planet carrier parts for rotating, and the second bearing, it is leaning on the position of the second end side to support second planet carrier parts for rotating than sun roller.
Description
Technical field
This utility model relates to a kind of planetary roller power transmission.
Background technology
Planetary roller power transmission is by abutting with sun roller and pass there is the state lower planet roller of lubricating oil
The traction drive of graduating power.Compared with planetary gear type power transmission, planetary roller power transmission because of
Back clearance and the vibration and the noise that produce are few.Such as, planetary roller power transmission is by sun roller, internal ring, planet
Roller and planet carrier are constituted.Planetary roller power transmission is as the reductor rotating output deceleration making electro-motor
And use.Planetary rollers is supported as rotating by planet carrier by planet axis parts.In such power transmission,
If to the revolving force of power shaft input electro-motor, then carrying out between sun roller and planetary rollers and planetary rollers and internal ring
Torque across oil film is transmitted.
Some reductors have the first internal ring and the second internal ring (such as Japanese Patent Publication 3-118348 publication etc.).
First internal ring is mobile relative to the circumference of shell to be limited.Second internal ring is connected with output shaft.Planetary rollers has external diameter not
It it is constant outer peripheral face.The outer peripheral face of planetary rollers inner peripheral surface with the first and second internal ring respectively contacts.Planet axis portion
The through planetary rollers of part.The end of the input side of planet axis parts is transfused to skidding carrier parts carry.Planet axis parts
The end of outlet side is output skidding carrier parts carry.In this reductor, by the rotation of sun roller, planet
Revolve round the sun around sun roller while roller rotation.If planetary rollers revolves round the sun, then produce the external diameter corresponding to outer peripheral face at the second internal ring
The rotation of difference.Above-mentioned reductor is the differential type power transmission utilizing the output of this phenomenon to rotate output, it is possible to
To higher speed reducing ratio.
If output shaft to be applied load, then corresponding to the different external diameters difference each other of outer peripheral face in first and second
The ring planet axis parts effect twisting resistance to planetary rollers.The rotational velocity of planetary rollers contacts with the first internal ring according to planetary rollers
Position and change.Therefore, rotational velocity uneven of each planetary rollers is produced each other in multiple planetary rollers.Change
Yan Zhi, the autobiography speed of each planetary rollers is different from each other.Therefore, at above-mentioned conventional planetary roller power transmission
In, exist and the misgivings that torque transmission is offset, transmission efficiency declines occur.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of planetary roller power making transmission efficiency improve biography
Delivery device.Especially to provide a kind of can suppression to cause planetary rollers to connect with internal ring because acting on the twisting resistance of planetary rollers
For the purpose of the planetary roller power transmission that the position touched changes.
The planetary roller power transmission of an embodiment of the present utility model have the first rotary shaft, the first internal ring,
Second rotary shaft, the second internal ring, plural planetary rollers, planet carrier and bearing.First rotary shaft has the sun
Roller, and the first rotary shaft is can to rotate centered by main shaft by outer casing supporting.In the form of a ring, it is held first internal ring
It is contained in shell, and the first internal ring moves relative to the circumference of shell and limited.Second rotary shaft is energy by outer casing supporting
Enough rotations centered by main shaft.In the form of a ring, it is housed inside in shell second internal ring, and the second internal ring and second revolves
Rotating shaft connects.Plural planetary rollers and the outer peripheral face of sun roller, the inner peripheral surface of the first internal ring and the second internal ring
Inner peripheral surface contacts.Planetary rollers is supported as rotating by planet carrier by planet axis parts.Planet carrier supporting is by bearing
Can rotate centered by main shaft relative to the first rotary shaft.Planetary rollers has the first outer peripheral face and the second outer peripheral face.
First outer peripheral face and the contact of the first internal ring.Second outer peripheral face and the contact of the second internal ring.First outer peripheral face and the second periphery
Face external diameter is different from each other.Planet carrier has the first row carrier parts and the second planet carrier component.Planet axis member passes row
Star roller.The first end of the first row carrier parts carry planet axis parts.Second planet carrier component supporting planetary spindle unit
The second end.Bearing has clutch shaft bearing and the second bearing.Clutch shaft bearing is leaning on the position of first end side than sun roller
Put the first row carrier parts carry as rotating.Second bearing than sun roller by the position of the second end side by the
Two planet carrier components support as rotating.
First outer peripheral face of planetary rollers is positioned at the position adjacent with the second outer peripheral face.Sun roller and the first internal ring with
The contact surface of one outer peripheral face contact overlaps each other diametrically.
Planetary roller power transmission also has thrust bearing.Thrust bearing is arranged in planetary rollers and the first row carrier portion
Between part or planetary rollers and the second planet carrier component.Thrust bearing surrounds planet axis parts.
Planetary roller power transmission also has needle bearing.Needle bearing is arranged in planetary rollers, and needle bearing
Planetary rollers is supported as can rotate relative to planet axis parts.Needle bearing has the first needle bearing and the second needle roller
Bearing.First needle bearing remain at least partially within the position the most overlapping with the first outer peripheral face.Second needle roller
Bearing remain at least partially within the position the most overlapping with the second outer peripheral face.
Planetary roller power transmission also has crossed roller bearing.Second rotary shaft supporting is by crossed roller bearing
Can rotate centered by main shaft relative to shell.
Second internal ring and the second rotary shaft are the assemblies that single component connects into.
Space is there is between the first internal ring and the inwall of shell or the second internal ring and the inwall of shell.
Planetary rollers has central outer peripheral face.Central authorities' outer peripheral face contacts with sun roller, and central authorities' outer peripheral face is positioned at the first periphery
Between face and the second outer peripheral face.First outer peripheral face is positioned at the position adjacent with the input of central outer peripheral face.Second periphery
Face is positioned at the position adjacent with the outfan of central outer peripheral face.
In the axial direction, central authorities the position of outer peripheral face, the first outer peripheral face position different from each other with the position of the second outer peripheral face.
The external diameter of the first outer peripheral face and the external diameter of the second outer peripheral face are less than the external diameter of central outer peripheral face.
On sun roller with on the central authorities contact surface that contact of outer peripheral face the first internal ring together with connecing that the first outer peripheral face contacts
Contacting surface is the most overlapping.
On sun roller with on the central authorities contact surface that contact of outer peripheral face the second internal ring together with connecing that the second outer peripheral face contacts
Contacting surface is the most overlapping.
In the planetary roller power transmission of an embodiment of the present utility model, the first rotary shaft is supported by bearing
For rotating.The first row carrier parts and the second planet carrier component supporting planetary roller.The first row carrier parts are by first
Bearing supports.Second planet carrier component is supported by the second bearing.Therefore, the rigidity of planet supporting device improves.Therefore,
The shift in position causing planetary rollers to contact because acting on the twisting resistance of planetary rollers can be suppressed with the first internal ring.Therefore,
In this utility model, using the teaching of the invention it is possible to provide a kind of planetary roller power transmission making transmission efficiency improve.
Referring to the drawings and by the following detailed description to preferred implementation, of the present utility model above-mentioned and other
Key element, feature, step, feature and advantage will become apparent.
Accompanying drawing explanation
Fig. 1 is the sectional view of the planetary roller power transmission 1 of the first embodiment.
Fig. 2 is the section view of the cutting plane of the situation being shown through A1-A1 cutting line by power transmission 1 cutting
Figure.
Fig. 3 is the section view of the cutting plane of the situation being shown through A2-A2 cutting line by power transmission 1 cutting
Figure.
Fig. 4 is the sectional view of the planetary roller power transmission 1A of the second embodiment.
Fig. 5 is the section view of the cutting plane of the situation being shown through B-B cutting line by power transmission 1A cutting
Figure.
Detailed description of the invention
Referring to the drawings embodiment of the present utility model is illustrated.In the following description, for convenience,
The direction of main shaft is illustrated as horizontal direction, but does not limit the power transmission dress involved by this utility model
Put posture in use.In the following description, by main shaft direction referred to as " axially ", will be with main shaft
The radial direction at center and circumference are referred to as " radially " and " circumferential ".
<the first embodiment>
<power transmission 1>
Fig. 1 shows a structure example of the planetary roller power transmission 1 of an embodiment of the present utility model
Sectional view.In fig. 1 it is illustrated that power transmission 1 is included cuing open of the situation of the vertical guide cutting of main shaft J
Tangent plane.In FIG, using the right side of paper as input side, and power transmission dress is described as outlet side in left side
Put 1.Fig. 2 is the section view of the cutting plane of the situation being shown through A1-A1 cutting line by power transmission 1 cutting
Figure.Fig. 3 is the section view of the cutting plane of the situation being shown through A2-A2 cutting line by power transmission 1 cutting
Figure.In Fig. 2 and Fig. 3, it is shown that from the situation of the cutting plane that the direction of arrow is observed.
Main shaft J be illustrate to the first rotary shaft 10, sun roller the 11, second rotary shaft the 13, second internal ring 14 and
The straight line of the center of rotation that planet carrier 16 is general.Power transmission 1 is by defeated from electro-motor (omitting diagram)
The reductor that the rotary motion entered is slowed down and exported.Power transmission 1 has plural planetary rollers 15, outer
Shell the 2, first rotary shaft the 10, first internal ring the 12, second rotary shaft the 13, second internal ring 14, planet carrier 16 and
Bearing 5,61,62,7,8,9.In this embodiment, bearing 5 and bearing 8 are ball bearings.At ball axle
In holding, the most plural spherical rotor is arranged between outer ring and inner ring.Bearing 9 is crossed roller bearing.
In the following description, bearing 9 is expressed as crossed roller bearing 9.
<shell 2>
Shell 2 is the framework accommodating rotatable parts described later.Shell 2 is fixed on the casing etc. of electro-motor.Shell 2
There is main part 21 and cap 22.Main part 21 is in tubular, and has opening at input side.Cap 22 is plate-shaped,
And it is arranged in the opening of main part 21.The opening in the main body covered portion of cap 22 21.Main part 21 has and prolongs vertically
The inner peripheral surface of the drum stretched.Cap 22 has the through hole of configuration the first rotary shaft 10.Cap 22 is installed on
Main part 21.
<the first rotary shaft 10>
First rotary shaft 10 has sun roller 11, and is supported as rotating centered by main shaft J by shell 2
Power shaft.Sun roller 11 is connected with planetary rollers 15 in outside.Axle by the first rotary shaft 10 with electro-motor
Deng connecting, from electro-motor to the revolving force of the first rotary shaft 10 input regulation.
Cap 22 has the most through through hole.Bearing 5 is arranged in the through hole of cap 22.Than the sun
Roller 11 is supported as rotating by bearing 5 partes tegmentalis 22 by the position of input side, the first rotary shaft 10.Leading
Bearing 8, crossed roller bearing 9 and the second rotary shaft 13 it is configured with in body 21.Than sun roller 11 by output
The position of side, the first rotary shaft 10 passes through crossed roller bearing the 9, second rotary shaft 13 and bearing 8 by main part
21 supportings are for rotating.
Bearing 5 is arranged in the radially inner side of cap 22.Bearing 8 is arranged in the outlet side end of the first rotary shaft 10.
Second rotary shaft 13 is supported as with main shaft J being relative to the main part 21 of shell 2 by crossed roller bearing 9
Central rotation.Crossed roller bearing 9 is arranged in the radially inner side of the outlet side end of main part 21.
Crossed roller bearing has the two or more columnar roller as rotor.Plural columnar rolling
Son configures relative to axially inclined.Crossed roller bearing 9 is roller bearing.Crossed roller bearing 9 is handed in the circumferential
Alternately it is configured with the roller that central axis intersects.In crossed roller bearing 9, curved relative to the second rotary shaft 13
The rigidity of Qu Li is high, high relative to the rigidity of radial load radially and axial axial load.
<sun roller 11>
Sun roller 11 is the columned rotatable parts with the outer peripheral face axially extended.The external diameter ratio of sun roller 11
The external diameter of the first rotary shaft 10 is big.Sun roller 11 forms with the first rotary shaft 10.
<internal ring>
First internal ring 12 and the second internal ring 14 are rotatable parts, and are connected with planetary rollers 15 in inner side.In first
Ring 12 and the second internal ring 14 are housed inside in shell 2.First internal ring 12 in the form of a ring, and relative to shell 2
Circumference is mobile to be limited.In other words, the first internal ring 12 is retainer ring.The input side end and first of the first internal ring 12
Rotary shaft 10 configures coaxially.
Second internal ring 14 in the form of a ring, and is connected with the second rotary shaft 13.Inwall at the second internal ring 14 with shell 2
Between there is space.That is, the outer peripheral face of the second internal ring 14 is with the inner peripheral surface of main part 21 across space in opposite directions.Dynamic
In force transfering device 1, utilize the elasticity of the second internal ring 14, it is possible to prevent planetary rollers 15 when radially inner side exerts a force
Change according to the circumferential position of planetary rollers 15 by pressure.Second internal ring 14 is can rotating ring.
First internal ring 12 and the second internal ring 14 are made up of elastomeric element.First internal ring 12 and the second internal ring 14
Such as it is made up of the metal elastic gonosome with flexibility.First internal ring 12 and the second internal ring 14 are by elastic diametrically
Deformation, it is possible to planetary rollers 15 is exerted a force to radially inner side.Therefore, in power transmission 1, even if the most additionally
Parts to planetary rollers 15 force are set, it is also possible to make transmission torque increase.
<the second rotary shaft 13>
Second rotary shaft 13 is supported the output shaft into rotating centered by main shaft J by shell 2.Second rotation
Revolving force from electro-motor etc. is transmitted by rotating shaft 13 to load.Second internal ring 14 and the second rotary shaft 13 are single
The assembly that body component connects into.In other words, the second internal ring 14 and the second rotary shaft 13 are split parts.Assembling
During power transmission 1, the second internal ring 14 and the second rotary shaft 13 are formed by connecting as assembly.Therefore, at power
In transfer device 1, relative to the second rotary shaft 13, the second internal ring 14 can the most individually apply quenching and add
Work.
Second rotary shaft 13 has: circular ring bearing portion 131；And boss portion 132.Boss portion 132 is from ring
Support 131 is prominent to outlet side.Second rotary shaft 13 configures coaxially with the first rotary shaft 10.Ring bearing portion
131 is the support of the outlet side end of supporting the second internal ring 14.Ring bearing portion 131 is arranged in the second internal ring 14
The radially inner side of outlet side end.
Boss portion 132 is supported as rotating by main part 21 by crossed roller bearing 9.Outside boss portion 132
Footpath is bigger than the external diameter of the first rotary shaft 10.Boss portion 132 is rotated by the revolving force of electro-motor.Now, with
The rotary speed of one rotary shaft 10 is compared, and boss portion 132 rotates relative to shell 2 low speed.
Crossed roller bearing 9 is arranged in the inner peripheral surface of the outer peripheral face of boss portion 132 and the outlet side end of main part 21
Between.Bearing 8 is arranged between the inner peripheral surface of boss portion 132 and the outer peripheral face of the first rotary shaft 10.Bearing 8
At least some of the most overlapping with crossed roller bearing 9.
<planetary rollers 15>
Planetary rollers 15 is rotatable parts, and with outer peripheral face, the inner peripheral surface of the first internal ring 12 and of sun roller 11
The inner peripheral surface contact of two internal ring 14.Planetary rollers 15 is supported as rotating by planet carrier 16.During planetary rollers 15 has
Centre outer peripheral face the 150, first outer peripheral face 151 and the second outer peripheral face 152.Central authorities' outer peripheral face 150 connects with sun roller 11
Touch.First outer peripheral face 151 contacts with the first internal ring 12.Second outer peripheral face 152 contacts with the second internal ring 14.At axle
Upwards, the central authorities position of outer peripheral face 150, the position of the first outer peripheral face 151 and the second outer peripheral face 152 position that
These are different.The external diameter of the first outer peripheral face 151 and the external diameter of the second outer peripheral face 152 are than the external diameter of central outer peripheral face 150
Little.
First outer peripheral face 151 is positioned at and the adjacent position of input of central authorities' outer peripheral face 150, and outside being formed at than central authorities
Side face 150 is by the position of input side.Second outer peripheral face 152 is positioned at the position adjacent with the outfan of central outer peripheral face 150
Put, and be formed at the position leaning on outlet side than central outer peripheral face 150.The external diameter of the second outer peripheral face 152 is than the first periphery
The external diameter in face 151 is little.In other words, the external diameter of the first outer peripheral face 151 and the external diameter of the second outer peripheral face 152 are different.Cause
This, it is possible to obtain desired speed reducing ratio at power transmission 1.
Sun roller 11 has the contact surface 111 that central outer peripheral face 150 is contacted.First internal ring 12 has the first periphery
The contact surface 121 that face 151 is contacted.Second internal ring 14 has the contact surface 141 that the second outer peripheral face 152 is contacted.
In power transmission 1, in the contact surface 111 same first contacted with central outer peripheral face 150 on sun roller 11
The most overlapping with the contact surface 121 that the first outer peripheral face 151 contacts on ring 12.Contact surface 121 axial
The position of input side is leaned on than the axial location of contact surface 111 in position.Connecing with central outer peripheral face 150 on sun roller 11
The contact surface 111 touched is with the contact surface 141 contacted with the second outer peripheral face 152 on the second internal ring 14 the most not
Overlapping.The axial location of contact surface 141 leans on the position of outlet side than the axial location of contact surface 111.
<planet carrier 16>
Planet carrier 16 is, by planet axis parts 3, planetary rollers 15 supports the supporting parts for rotating.Planet carrier
16 configure coaxially with the first rotary shaft 10.Planet carrier 16 is the supporting together supporting plural planetary rollers 15
Parts.
Planet axis parts 3 are the planet carrier pins of supporting planetary roller 15.The through planetary rollers of planet axis parts 3 15.Planet
Spindle unit 3 has first end and the second end.First end is the end of the input side of planet axis parts 3.Second
End is the end of the outlet side of planet axis parts 3.Clutch shaft bearing 61 and the second bearing 62 are by planet carrier 16
Hold as rotating centered by main shaft J relative to the first rotary shaft 10.Planet carrier 16 has the first row carrier portion
Part 161 and the second planet carrier component 162, the planet axis that the first row carrier parts 161 have supported planetary rollers 15 through
The first end of parts 3, the second end of the second planet carrier component 162 supporting planetary spindle unit 3.
The first row carrier parts 161 are in toroidal.The first row carrier parts 161 pass through clutch shaft bearing 61 by first
Rotary shaft 10 supports as rotating.Clutch shaft bearing 61 is leaning on the position of input side by first planet than sun roller 11
Frame parts 161 support as rotating.Clutch shaft bearing 61 is ball bearing, and is arranged in the first row carrier parts 161
Radially inner side.Ball bearing is high relative to radial load rigidity radially.The first row carrier parts 161 and the first axle
Holding 61 is leaning on the position of input side to be arranged in the radially inner side of the first internal ring 12 than contact surface 121.
Second planet carrier component 162 is in toroidal.Second planet carrier component 162 passes through the second bearing 62 by first
Rotary shaft 10 supports as rotating.Second bearing 62 is leaning on the position of outlet side by the second planet than sun roller 11
Frame parts 162 support as rotating.Second bearing 62 is ball bearing, and is arranged in the second planet carrier component 162
Radially inner side.Ball bearing is high relative to radial load rigidity radially.Second planet carrier component 162 and the second axle
Holding 62 is leaning on the position of outlet side to be arranged in the radially inner side of the second internal ring 14 than contact surface 141.
Needle bearing is arranged in planetary rollers 15, and planetary rollers 15 is supported as can be relative to planet axis parts 3
Rotate.In this embodiment, the first needle bearing 41 and the second needle bearing 42 are arranged in planetary rollers 15.
First needle bearing 41 and the second needle bearing 42 are roller bearings.In roller bearing, along planetary rollers 15
The plural needle rollers that axis of rotation direction extends becomes rotor.
Relative to the axis of rotation of planetary rollers 15, remaining at least partially within and planetary rollers 15 of the second needle bearing 41
The position that first outer peripheral face 151 is overlapping diametrically.Remaining at least partially within and planetary rollers of second needle bearing 42
The position that second outer peripheral face 152 of 15 is overlapping diametrically.
It is configured with thrust bearing 7 between planetary rollers 15 and the first row carrier parts 161.Thrust bearing 7 surrounds row
Star spindle unit 3.Thrust bearing is the bearing high relative to the rigidity of axial axial load.Thrust bearing 7 such as has
There are plural spherical rotor, keeper and at least two track plates.Keeper is in the circumferential across constant
Interval keep rotor.At least one track plates is arranged in input side.At least one track plates is arranged in outlet side.
Rotor is arranged between track plates.
In the present embodiment, in power transmission 1, four planetary rollers 15 the most equally spaced configure.
Each planetary rollers 15 is housed inside in the first internal ring 12 and the second internal ring 14, and external with sun roller 11.In contact
On the position in face 141, the thickness of the second internal ring 14 is thicker than the thickness of planetary rollers 15.Each planetary rollers 15 is each equipped with
Planet axis parts 3 and thrust bearing 7.That is, each planetary rollers 15 is respectively provided with planet axis parts 3 and thrust axis
Hold 7.
Below to the mutual relation of each parts constituting power transmission 1 and the effect produced by its mutual relation
Effect is described in detail.
(1) transmission efficiency is improved
In planetary rollers 15, corresponding to the external diameter of the first outer peripheral face 151 and the difference of the external diameter of the second outer peripheral face 152,
From the first internal ring 12 and the second internal ring 14, planet axis parts 3 are acted on twisting resistance.Corresponding to planetary rollers 15 and
One internal ring 12 and the position of the second internal ring 14 contact, the rotational velocity change of planetary rollers 15.At conventional power
In transfer device, because twisting resistance causes described contact position to change, it is produced from rotary speed each other in multiple planetary rollers
Uneven.That is, the situation that the rotational velocity of each planetary rollers is respectively different is produced.Therefore, in conventional power transmission
In device, exist and produce the counteracting of torque transmission, the problem of transmission efficiency decline.
On the other hand, in the power transmission 1 of present embodiment, the first row carrier parts 161 are by clutch shaft bearing
61 supportings.Second planet carrier component 162 is supported by the second bearing 62.By the first row carrier parts 161, second
Planet carrier component 162 and multiple planet axis parts 3 constitute the planet supporting device of mouse cage shape.First rotary shaft 10
Supported by this planet supporting device.Therefore, the rigidity of the planet supporting device supporting multiple planetary rollers 15 improves.Cause
This, the change of the described contact position caused because of twisting resistance is suppressed, be not likely to produce because of each planetary rollers each other from
The counteracting of the uneven torque transmission caused of rotary speed.As a result of which it is, the transmission of power transmission 1 can be made to imitate
Rate improves.
In power transmission 1, thrust bearing 7 bears axial load.Therefore, even if making in axial load
In the case of planetary rollers 15, it is also possible to prevent planetary rollers 15 from contacting with the first row carrier parts 161.
Load acts on planetary rollers 15 from the first internal ring 12 and the second internal ring 14 to radially inner side.Planet axis parts 3
The end (i.e. first end and the second end) of end and outlet side of input side respectively by the first row carrier parts
161 and second planet carrier component 162 support.In conventional power transmission, only one of which needle bearing.
The rotor of needle bearing axially extends.Therefore, bending stress acts on the rotor at needle bearing.Its result
It is that, at planetary rollers time rotational, the frictional resistance between needle bearing and planetary rollers increases.But, at power transmission dress
Putting in 1, needle bearing includes at least two needle bearing 41,42.Therefore, peptizaiton turning in needle bearing
The bending stress of kinetoplast, the frictional resistance between suppression needle bearing and planetary rollers 15 increases.
(2) load capacity is improved
In power transmission 1, use crossed roller bearing 9.Therefore, in power transmission 1, relatively
Rigidity in the radial load and axial load that act on the second rotary shaft 13 improves.Therefore, it is possible to make power pass
The load capacity of delivery device 1 improves.
<the second embodiment>
In the first embodiment, planetary rollers 15 has outer peripheral face 150～152.On the other hand, the second embodiment party
In formula, the first outer peripheral face 151A is positioned at the position adjacent for outer peripheral face 152A with second.
Fig. 4 shows the sectional view of a structure example of the planetary roller power transmission 1A of the second embodiment.
In fig. 4 it is shown that by the cutting including the vertical guide of the main shaft J situation by power transmission 1A cutting
Face.In the diagram, using the right side of paper as input side, power transmission is described as outlet side in left side
1A.Fig. 5 is the sectional view of the cutting plane of the situation being shown through B-B cutting line by power transmission 1A cutting,
And the situation of the cutting plane observed from the direction of arrow is shown.
Compared with the power transmission 1 of power transmission 1A with Fig. 1～3, the structure of planetary rollers, thrust bearing
The structure of position, the second rotary shaft and the second internal ring different with the structure of the cap of shell.The lid of shell 2A
Portion 22A has the boss portion 221 prominent to input side.Radially inner side in boss portion 221 is configured with bearing 5.More
In detail, boss portion 221 is the position of the tubular axially extended.In the through hole of the tubular of boss portion 221
Configuration bearing 5.
The end face of the input side end of the first internal ring 12 contacts with cap 22A.The input side end of the first internal ring 12
It is fixed on cap 22A by secure component 23 etc..Secure component 23 e.g. screw.The periphery of the first internal ring 12
Face is opposed across space with the inner peripheral surface of main part 21.In other words, at outer peripheral face and the main part of the first internal ring 12
Space is there is between the inner peripheral surface of 21.Second rotary shaft 13A and the second internal ring 14A use identical material one
Ground is formed.Thrust bearing 7 is arranged between planetary rollers 15A and the second planet carrier component 162.
Planetary rollers 15A has: the first outer peripheral face 151A contacted with sun roller 11 and the first internal ring 12；And with
Second outer peripheral face 152A of the second internal ring 14A contact.First outer peripheral face 151A is positioned at and the second outer peripheral face 152A
Adjacent position.The external diameter of the first outer peripheral face 151A external diameter than the second outer peripheral face 152A is big.Sun roller 11 has
The contact surface 111A contacted with the first outer peripheral face 151A.First internal ring 12 has and contacts with the first outer peripheral face 151A
Contact surface 121A.The contact surface 111A contacted with the first outer peripheral face 151A on sun roller 11 is with the first internal ring
The contact surface 121A contacted with the first outer peripheral face 151A on 12 overlaps each other diametrically.Contact surface 121A's
Axial location is consistent with the axial location of contact surface 111A.
In power transmission 1A, make outer peripheral face 151A and first internal ring 12 and the sun of planetary rollers 15A
Roller 11 contacts.Therefore, compared to outer peripheral face and the first outer peripheral face 151A being respectively provided with the contact of same sun roller 11
Situation, it is possible to make power transmission 1A miniaturization in the axial direction.
In power transmission 1A, between the first internal ring 12 and the inwall of shell 2A, there is space.Therefore,
Utilize the elasticity of the first internal ring 12, it is possible to prevent when planetary rollers 15A is exerted a force by radially inner side by pressure according to row
The circumferential position of star roller 15A and change.
In power transmission 1A, thrust bearing 7 bears axial load.Therefore, even if in axial load
In the case of acting on planetary rollers 15A, it is also possible to prevent planetary rollers 15A and the second planet carrier component 162 from contacting.
It addition, in the first and second embodiment, sun roller 11 forms with the first rotary shaft 10.But
It is that sun roller 11 can also be formed by split parts with the first rotary shaft 10.
Further, in the first and second embodiment, shell 2,2A are fixed on the casing etc. of electro-motor.Electricity
The revolving force of dynamic motor is delivered to sun roller 11 by the first rotary shaft 10.By the second internal ring 14,14A from second
Rotary shaft 13,13A export revolving force.But, power transmission 1, the occupation mode of 1A are not limited to this.
For example, it is also possible to change the first rotary shaft 10 and the second rotary shaft 13, function of 13A.I.e., it is also possible to
As by the rotation speedup of electro-motor the booster engine that exports to use power transmission 1,1A.Transmit at power
In device 1,1A, it is also possible to be following structure: shell 2,2A and the casing of electro-motor or variable-speed motor, speedup
The shell of other power transmissions such as machine forms.In power transmission 1,1A, it is also possible to will be with
The framework that electro-motor or other power transmissions share is used as shell 2,2A.
Claims (12)
1. a planetary roller power transmission, it has:
First rotary shaft, it has a sun roller, and described first rotary shaft by outer casing supporting for being with main shaft in
The heart rotates；
The first ring-type internal ring, it is housed inside in described shell, and described first internal ring is relative to the week of described shell
Limited to mobile；
Second rotary shaft, it is can to rotate centered by described main shaft by described outer casing supporting；
The second ring-type internal ring, it is housed inside in described shell, and described second internal ring is with described second rotary shaft even
Connect；
Plural planetary rollers, its with the outer peripheral face of described sun roller, the inner peripheral surface of described first internal ring and described
The inner peripheral surface contact of the second internal ring；
Planet carrier, described planetary rollers is supported as rotating by it by planet axis parts；And
Bearing, described planet carrier is supported as can revolve centered by described main shaft relative to described first rotary shaft by it
Turn,
Described planetary roller power transmission is characterised by,
Described planetary rollers has:
First outer peripheral face, it contacts with described first internal ring；And
Second outer peripheral face, it contacts with described second internal ring,
Described first outer peripheral face and described second outer peripheral face external diameter are different from each other,
Described planet carrier has:
The first row carrier parts, the first end of the described planet axis parts of described planetary rollers that its supporting is through；And
Second planet carrier component, the second end of its described planet axis parts of supporting,
Described bearing has:
Clutch shaft bearing, described the first row carrier parts are being propped up by the position of described first end side by it than described sun roller
Hold as rotating；And
Second bearing, described second planet carrier component is being propped up by the position of described the second end side by it than described sun roller
Hold as rotating.
Planetary roller power transmission the most according to claim 1, it is characterised in that
Described first outer peripheral face of described planetary rollers is positioned at the position adjacent with described second outer peripheral face,
The contact surface contacted with described first outer peripheral face of described sun roller and described first internal ring is the most each other
Overlapping.
Planetary roller power transmission the most according to claim 1 and 2, it is characterised in that
Described planetary roller power transmission also has thrust bearing, described thrust bearing be arranged in described planetary rollers with
Between described the first row carrier parts or described planetary rollers and described second planet carrier component, and described thrust axis is contracted
Enclose described planet axis parts.
Planetary roller power transmission the most according to claim 1 and 2, it is characterised in that
Described planetary roller power transmission also has needle bearing, and described needle bearing is arranged in described planetary rollers
In, and described needle bearing by described planetary rollers support for can rotate relative to described planet axis parts,
Described needle bearing has:
First needle bearing, it remains at least partially within the position the most overlapping with described first outer peripheral face；And
Second needle bearing, it remains at least partially within the position the most overlapping with described second outer peripheral face.
Planetary roller power transmission the most according to claim 1 and 2, it is characterised in that
Described planetary roller power transmission also has crossed roller bearing, and described crossed roller bearing is by described second
Rotary shaft supports as can rotate centered by described main shaft relative to described shell.
Planetary roller power transmission the most according to claim 1 and 2, it is characterised in that
Described second internal ring is the assembly that single component connects into described second rotary shaft.
Planetary roller power transmission the most according to claim 1 and 2, it is characterised in that
Exist between described first internal ring and the inwall of described shell or described second internal ring and the inwall of described shell
Space.
Planetary roller power transmission the most according to claim 1 and 2, it is characterised in that
Described planetary rollers has central outer peripheral face, and described central authorities outer peripheral face contacts with described sun roller, and outside described central authorities
Side face between described first outer peripheral face and described second outer peripheral face,
Described first outer peripheral face is positioned at the position adjacent with the input of described central outer peripheral face,
Described second outer peripheral face is positioned at the position adjacent with the outfan of described central outer peripheral face.
Planetary roller power transmission the most according to claim 8, it is characterised in that
In the axial direction, position and described second outer peripheral face of the described central authorities position of outer peripheral face, described first outer peripheral face
Position is different from each other.
Planetary roller power transmission the most according to claim 8, it is characterised in that
The external diameter of described first outer peripheral face and the external diameter of described second outer peripheral face are less than the external diameter of described central authorities outer peripheral face.
11. planetary roller power transmissions according to claim 8, it is characterised in that
On described sun roller with the described central authorities contact surfaces that contact of outer peripheral face with on described first internal ring with described the
The contact surface of one outer peripheral face contact is the most overlapping.
12. planetary roller power transmissions according to claim 8, it is characterised in that
On described sun roller with the described central authorities contact surfaces that contact of outer peripheral face with on described second internal ring with described the
The contact surface of two outer peripheral face contacts is the most overlapping.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-080773 | 2015-04-10 | ||
| JP2015080773A JP2016200218A (en) | 2015-04-10 | 2015-04-10 | Planetary roller type power transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479194U true CN205479194U (en) | 2016-08-17 |
Family
ID=56639452
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620066786.1U Withdrawn - After Issue CN205479194U (en) | 2015-04-10 | 2016-01-22 | Planet roll -type power transfer device |
| CN201610044623.8A Expired - Fee Related CN106051085B (en) | 2015-04-10 | 2016-01-22 | Planetary roller power transmission |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610044623.8A Expired - Fee Related CN106051085B (en) | 2015-04-10 | 2016-01-22 | Planetary roller power transmission |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2016200218A (en) |
| CN (2) | CN205479194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051085A (en) * | 2015-04-10 | 2016-10-26 | 日本电产新宝株式会社 | Planetary roller type power transmission device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003042576A1 (en) * | 2001-11-13 | 2003-05-22 | Shubur Co., Ltd. | Speed change system using planetary gear assembly |
| CN102278430A (en) * | 2010-06-11 | 2011-12-14 | 谢龙昌 | Planet-gear speed reducer |
| JP5480845B2 (en) * | 2011-05-27 | 2014-04-23 | シナノケンシ株式会社 | Planetary gear mechanism |
| CN203962885U (en) * | 2014-06-04 | 2014-11-26 | 郭秋林 | Automatic two gears of the coaxial output of a kind of electric motor car drive assembly |
| JP2016200218A (en) * | 2015-04-10 | 2016-12-01 | 日本電産シンポ株式会社 | Planetary roller type power transmission device |
-
2015
- 2015-04-10 JP JP2015080773A patent/JP2016200218A/en active Pending
-
2016
- 2016-01-22 CN CN201620066786.1U patent/CN205479194U/en not_active Withdrawn - After Issue
- 2016-01-22 CN CN201610044623.8A patent/CN106051085B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051085A (en) * | 2015-04-10 | 2016-10-26 | 日本电产新宝株式会社 | Planetary roller type power transmission device |
| CN106051085B (en) * | 2015-04-10 | 2018-10-16 | 日本电产新宝株式会社 | Planetary roller power transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106051085B (en) | 2018-10-16 |
| JP2016200218A (en) | 2016-12-01 |
| CN106051085A (en) | 2016-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2013231448A (en) | One-way clutch and power generating device | |
| CN104620020B (en) | The crankshaft structure body that gear drive is used with which | |
| CN107178605A (en) | Planetary gearsets bearing cage | |
| TWI701398B (en) | Crankshaft and gear transmission | |
| CN102112779B (en) | Acceleration and deceleration device | |
| CN204828500U (en) | Speed reducer | |
| CN205479194U (en) | Planet roll -type power transfer device | |
| JP2017101712A (en) | Transmission device and differential gear | |
| JP7207628B2 (en) | transmission | |
| CN106574698B (en) | Contiuously variable transmission | |
| US20070117675A1 (en) | Washer and planetary gear set having the same | |
| CN205559710U (en) | Power transfer device of planet roll -type | |
| CN104613148B (en) | Frictional power transmission device | |
| JP2013053713A (en) | Roller bearing and wind power generator speed increasing gear | |
| EP2730805B1 (en) | Reduction gear | |
| JP5970990B2 (en) | Planetary roller type power transmission device | |
| CN106870684A (en) | automobile differential, bearing combined structure | |
| CN206320250U (en) | Planetary roller power transmission | |
| CN206845830U (en) | automobile differential, bearing combined structure | |
| JP7367351B2 (en) | Multistage planetary roller power transmission device | |
| US20180291993A1 (en) | Transmission device | |
| JP7442364B2 (en) | Differential reducer with improved lubrication performance | |
| JP5867132B2 (en) | Friction roller reducer | |
| CN109964057A (en) | Ball speed reducer | |
| JP7186582B2 (en) | wheel drive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20181016 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20181016 |