CN1018014B - Stepped radial pressurized adhesive drive - Google Patents
Stepped radial pressurized adhesive driveInfo
- Publication number
- CN1018014B CN1018014B CN 90102114 CN90102114A CN1018014B CN 1018014 B CN1018014 B CN 1018014B CN 90102114 CN90102114 CN 90102114 CN 90102114 A CN90102114 A CN 90102114A CN 1018014 B CN1018014 B CN 1018014B
- Authority
- CN
- China
- Prior art keywords
- wheel
- planet wheel
- central gear
- transmission device
- planet
- 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.)
- Expired
Links
- 239000000853 adhesive Substances 0.000 title 1
- 230000001070 adhesive effect Effects 0.000 title 1
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 7
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 2
- 238000013016 damping Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 12
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011359 shock absorbing material Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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- Retarders (AREA)
Abstract
The present invention relates to a planetary transmission device designed according to the adhesion principle, and is characterized by compact structure, stable transmission, no noise, small volume, pure rolling and high efficiency, and can be designed into a general series of speed-increasing and speed-reducing machines.
The invention uses rolling bearing as planetary gear, the central wheel is sleeved outside the planetary gear after hot expansion, and primary radial pressure is generated after cooling. The planet wheel is forced to press the sun wheel for the second time through the cam, so that the force transmission balance between the main wheel and the auxiliary wheel is achieved, and the main wheel and the auxiliary wheel are adhered by special oil to transmit.
Description
The present invention is according to a kind of high efficiency, the muting transmission device of adhesion principles design, can be designed to universal serial and increase speed reducer.
The present invention forms planetary gear train with smooth cylinder, central gear makes elastic circular ring, its internal diameter is less than the outer common tangent circle of each planet wheel, easily be placed in outside the planet wheel after the heating, make whole train produce stable radial pressure, each planet wheel shaft pressurizeed to sun gear once more by cam, while, made sun gear secondary pressurized, increase the frictional force between sun gear and the planet wheel, reach sun gear and equate with the frictional force of central gear with planet wheel, planet wheel.Planet wheel is made up of rolling bearing, does plastic deformation in the running, thereby reaches the optimum Working of rolling bearing.Add the lubricant oil with the sticking characteristic of high pressure in device, the contact area forms the high-intensity elasticity adhesive film of one deck, makes the principal and subordinate produce draw between taking turns, and realizes transmission of power.
Wholely take turns the work of tying up under the pure rolling state, under the effect of viscosity oil film, between principal and subordinate's wheel direct contact does not take place, they are in the situation of elastic hydrodynamic lubrication, transmission is extremely steady, and sound does not take place, and is specially adapted to require the ultra-low noise occasion of working under quiet environment.For example: the cooling tower of ultra-low noise, blower, hotel equipment, hospital equipment, office building equipment etc., also can do the supporting use of general device, also can be designed to the speed reducer that increases of universal serial.
Adhering to transmission is the new type of belt drive of the seventies development, its basic principle has the argumentation than system in " Traction Drive " book, the prior art great majority are to reach radially contact pressure by axial pressure, relevant technologies is patent of Japan, it is to make interior external conical sleeve structure with sun gear, relative position by the inside external taper of adjusting axle, overcoat is risen greatly, thereby make and produce contact pressure between drive wheel, the interior external taper of this patent is made complicated, the making of external conical sleeve is difficult to find the superior material of drawingand pressing fatigue intensity, damages easily, and its concrete structure saw JP59-147149[for details special day]-1984.8.23; IPC F16H13/08; B66B11/08.Relevant with the present invention also have a kind of form be diameter of bore by central gear less than the outer common tangent circle of each planet wheel, disposable radially pressurization reaches contact pressure.This device has been ignored the frictional force of the internal diameter of the frictional force of sun gear external diameter and central gear, the frictional force that is the two ends of planet wheel diametric(al) contact area is had any different, so when real work is started, have the situation of skidding, repeatedly start, repeatedly skid, very fast damage, its concrete structure see Chinese patent application numbers 87104717 for details.
The objective of the invention is to design a kind of simple and effective, do not have skid, the flexible pure rolling of noiseless, the adhesion drive mechanism of stepped and radially pressurization, main contents are as follows:
1. the drive train of forming with the smooth cylindrical body of a kind of usefulness of planetary layout, central gear make internal diameter less than sun gear add two planet wheels diameter and annulus, be set in outside the planet wheel after the heating, make between the central gear of each planet wheel and sun gear and resiliently deformable and form radial pressure, the little axle of each planet wheel pressurizes to the sun gear direction once more by cam, make sun gear secondary pressurized, increase the tractive force between sun gear and the planet wheel, reach diametric(al) two end in contact of planet wheel, avoid skidding, do the traction agent by extraordinary lubricating oil, realize adhering to transmission.
2. planet wheel adopts rolling bearing to form, and the outer ring of bearing is best ellipticity flexible working under radial effect power, each planet wheel autobalance, and shunting is all carried.
3. central gear is circumferentially fixing, adopts the unsteady vibration-proof structure of a kind of planet hole pin, guarantees not hinder the central gear free deformation under the situation of central gear elastic oscillation.
Fig. 1 is a structure of the present invention, the planet wheel (10) that rolling bearing is formed, be supported on by planet axis (13) in the circumferential uniform chute of planet carrier (6), can make radially free floating, sun gear (5) is installed in the middle of the planet wheel (10), make its axially locating, the internal diameter of central gear (4) is less than the diameter of the outer common tangent circle of all planet wheels (10), heating easily is set in outside the planet wheel after rising greatly, make sun gear (1) between each planet wheel (10), compress after the cooling, guarantee to produce great contact pressure, for the circumferential location positioning ring (14) of central gear (4) is fixed on housing (7), central gear (4) matches with pin (11), and two distribution hole fit diameter should equate.Fig. 2 is that the central gear proper functioning is wavy, and cotter diameter is d, and the pin-and-hole diameter is D, the D=d+ Δ
1+ Δ
2+ δ, δ often get 0.1-0.2, prevent the vibration friction, and pin-and-hole cover (12) is made by nonmetal vibrationproof high-abrasive material, and Fig. 3 is that cam frid (9), (15) are in order to entangle planet wheel shaft (13).Fixedly output shaft (8) rotates input shaft (1) and carries out the load adjustment, and predetermined input torque is non-slip until reaching, and pieces together tight screw (16) then.Input shaft (1) is made symmetrical keyway, mixes the flat key (2) that shock absorbing material is made, and in the fastening keyway of sunk screw (3), planet carrier (6) makes integrated type or groupware type, connects output shaft (8) by flat key.
The centralized positioning of whole train is by output shaft (8) centering, housing (7) with should guarantee the deformation wave of central gear (4) when not hindering one's work cooperating of central gear (4).
The present invention will use a kind of lubricant oil of special character, and this oil has generally lubricated oil properties under normal pressure.But under high pressure its viscosity increased is very big, makes the traction coeficient of principal and subordinate between taking turns reach 0.095-0.12.The homemade trade mark has S-20, S-30, S-50; U.S.'s trade mark has Santotrac40,50,70 etc.
The present invention is designed to the general speed reducer that increases, and also must add to increase the general component that speed reducer has, as oil inlet hole, oil outlet, plug cock, oil ga(u)ge, output shaft supporting, oil sealing, oil pump etc.
Implement major technique key of the present invention:
1. carry out the elastic fluid dynamic pressure and calculate, meeting the following conditions to form the viscosity oil film, realizes adhering to transmission.
λ-Film Thickness Ratio
H
1H
2-drive wheel surface roughness
Oil film minimum thickness between ho-principal and subordinate wheel
E '-equivalent Young's modulus
V
1The Poisson's ratio of-material 1
V
2The Poisson's ratio of-material 2
2. must rationally select special lubricating oil for use, homemade is S-20 or S-30, and U.S.'s trade mark is Santotrac40 or 50.
3. rationally arrange the planet wheel number according to structure space, 2-4 commonly used.
4. the thickness of central gear is determined by following formula:
The width cm of B-central gear
C=8.51 * 10 during C-planet wheel coefficient n=2
-7
C=9.1078 during n=3 * 10
-8
5. purchase the rolling bearing except that planet wheel is ready-made, the material of each wheel can be selected 38CrMoAlA or GCr15 for use, hardness HRC＞62, and the larger-size optional low-carbon (LC) layer depth about 1.5 of central gear all requires the hardenite tissue after the material processed.
6. surface of contact is carried out Calculation of Fatigue Strength, central gear also must carry out drawingand pressing fatigue intensity and calculate.
7. when assembling, install whole train earlier, be fixed in output shaft and adjust cam frid (9) (15), same direction rotation, when input shaft is rotated under predetermined torque non-slip tight screw (16) housing of packing into of piecing together then, the hot ringfeder of central gear goes into by heating-up temperature to control, and also can adopt the elasticity imposed deformation easily to be inserted in, but the amount of deformation of imposed deformation is not answered the resiliently deformable License Value of overcenter wheel, in order to avoid influence its stressed uniformity.Cam frid (9) should be processed simultaneously with (15).
8. the pin-and-hole distribution circle diameter of central gear should equate with the pin-and-hole distribution circle diameter of positioning ring, the unsuitable through hole in hole slightly, and the general degree of depth is 1.5 times a cotter diameter, and guide is made with the vibrationproof wear resistant nylon, and cotter diameter is less than 1/3rd central gear thickness.
Embodiment: blower fan transmission when being applied to cooling tower 100T/.
Diameter of the housing 200, long 200 power of motor 2.2KW
Input shaft rotating speed 970rpm, the input square is turned round N
1=22Nm
Output shaft rotating speed 320rpm output torque N
2=66Nm
Velocity ratio i=3
Efficiency eta=0.95
T=30 ℃ of temperature rise Δ
Noise 48dB(A)
Claims (4)
1, forms the adhesion transmission device that draws by extraordinary lubricating oil with the smooth cylindrical body of a kind of usefulness of planetary layout, it is characterized in that planet wheel forms with rolling bearing, central gear make internal diameter less than the diameter of sun gear and two planet wheels and annulus, form radial pressure, each planet wheel pressurizes to sun gear once more by cam, reach sun gear and planet wheel, the power of planet wheel and central gear is transmitted balance.Central gear does not hinder under the condition of distortion back transferring power guaranteeing, an end face of central gear is stamped several apertures, loads onto pin with positioning ring matches, and realizes the connection of floating of circumferential hole pin.
2, adhesion transmission device according to claim 1 is characterized in that the number 2-4 generally commonly used of planet wheel is individual.
3, adhesion transmission device according to claim 1 is characterized in that each drive wheel adopts high contact strength material to make.
4, adhesion transmission device according to claim 1 is characterized in that input shaft makes symmetrical keyway, makes flat key by damping material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102114 CN1018014B (en) | 1988-07-02 | 1988-07-02 | Stepped radial pressurized adhesive drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102114 CN1018014B (en) | 1988-07-02 | 1988-07-02 | Stepped radial pressurized adhesive drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1047912A CN1047912A (en) | 1990-12-19 |
| CN1018014B true CN1018014B (en) | 1992-08-26 |
Family
ID=4877380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90102114 Expired CN1018014B (en) | 1988-07-02 | 1988-07-02 | Stepped radial pressurized adhesive drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1018014B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6596995B2 (en) * | 2015-07-06 | 2019-10-30 | 株式会社ジェイテクト | Planetary roller type power transmission device |
-
1988
- 1988-07-02 CN CN 90102114 patent/CN1018014B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1047912A (en) | 1990-12-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |