JPH04507131A - Double outer cycloid type friction wheel reducer for high rotation speed machines - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a friction wheel type reducer that generates the force applied to the friction wheel by self-operation. do.

The technical field of the present invention is any prime mover generating engine, especially steam/gas turbines. This is a device that captures the rotary mechanical energy generated by high-speed prime movers such as motors. steaming Air/gas turbo engines have very high rotational speeds and conventional coupling/reduction means, especially gear teeth. Exceeding the usage limits of vehicle-type coupling/deceleration means is an obstacle to downsizing and weight reduction. ing.

− Mainly utilizes electromagnetic induction as the next system, sacrificing slip during high-speed rotation. Inductive exocycloid coupling/recelerator for high speed machines to capture mechanical energy is disclosed in European Patent No. 0161194. Another electromagnetic effect as a secondary system This transmits the captured torque, but it does not act on the planetary gear inductor, which is quite large. With the help of a 100% mechanical transfer/rotational friction effect supported by centrifugal force become.

The purpose of the present invention is to avoid electromagnetism and use a simple and efficient technical idea. Therefore, it is an object to improve the conventional device. If there is electromagnetism, the structure will be complicated, Not only are production costs high, but slips, Joule effects, hysteresis, tooling It becomes almost impossible to reduce energy loss due to the comic style, etc. Therefore, a large amount of heat is released and cooling means are therefore required.

The decelerator of the present invention has a radial force generated as soon as its movable assembly begins to rotate. It mainly uses friction wheels that are pressed together strongly by the friction wheels.

It is known to capture and transmit torque using friction wheels, and many Vehicle speed reducers are also known. For example, French Patent No. 2205974 and Friction wheel type exocycloid type reducer disclosed in Continuation Patent No. 22110H A sun gear is also used in this device, but the force applied to the friction wheel is applied to the elastic belt. Tightening is a force that comes from force, not from rotation of the device.

In addition, the centrifugal force restraint type external sensor disclosed in French Patent No. 2568821i In the icroid type decelerator, a weight that generates a centrifugal effect is used. , this effect, which is tied to the rotation, affects the output input between the primary and secondary systems. The purpose is to ensure one-way drive when the force is reversed, and it is applied to a friction wheel. It is not intended to ensure the ability to

Unlike the method using electromagnetic induction disclosed in European Patent No. 0161194, , the present invention primarily aims at reversing the direction of the centrifugal force caused by the orbital rotation of the sun gear. centrifugal force is also applied to the high-speed drive shaft located at the center (however centripetal ), and finally, all the -order friction wheels and secondary friction wheels are strongly pressed together, and the Both have certain limits or limits set between different factors depending on the materials used and the dimensions set. It is characterized by the ability to effectively capture and transmit drive torque without causing slip. It is a sign.

This friction wheel must be perfectly circular, with no asperites or bumps. It must not be caused by the force of pushing the friction wheels together or by the rolling force that continuously acts during transfer. Therefore, the first priority is to use heat-treated/polished hard steel. will be considered. An example is a perfectly smooth roller made of specially hardened/carburized steel. The ring shape is derived from rNUJ industrial bearings consisting of It will be done.

However, in this case, the coefficient of friction becomes very small, and in order to prevent slipping, To achieve this, a very large force must be applied to the friction wheel.

The force applied to the friction wheel must be much lower than the compressive strength of the steel used. This will lead to deterioration. This is because the contact surface between friction wheels becomes a metal-to-metal contact line. It is et al.

In addition, other materials with superior coefficients of friction are used to improve the functionality and durability of the device. This reduces the force applied to the friction wheel, making it possible to use materials with lower hardness, and Attempts have also been made to apply special surface treatments to strengthen adhesion. . Therefore, in the present invention, metals other than steel or even harder than metals can be used. Materials such as high or low plastics, ceramics, carbon fiber-filled elastomers, etc. It is contemplated to use single or composite non-metallic materials.

Another unique feature that distinguishes the present invention from the prior art described above is that the auxiliary gears used It is possible. In an electromagnetic induction system, there are a driving vehicle (guided object) and a driven vehicle. Since there is a relative slip between the (inductor) and the It is synchronous. Therefore, it cannot coexist with gears that perform synchronous transmission. In contrast, In the present invention, as long as there is no slip, all friction is eliminated like Abt type railway. A car can work in sync with gears.

Up to the adhesion limit, the teeth of the auxiliary gear that overlap the friction wheel can theoretically handle any torque load. As a result, the rupture limit is not the same as with temporary refueling. The field will be in the higher rotation speed range. Therefore, the device of the present invention can be of a hybrid type. can. In other words, gears are used to complement the friction wheels, and are used to prevent unforeseen accidents, especially at low speeds. or prevent the risk of accidental slips.

Any type of drive, especially steam or gas turbines, regardless of rotational speed. In contrast, high-speed rotating passives such as centrifuges, compressors, and centrifuges are The device according to the invention can also be used conversely as a speed increaser for driving with a drive machine.

The advantages and features of the invention will be explained in the following description, which is given by way of non-restrictive example with reference to the attached figures. This will become clearer through the publication.

Brief description of the drawing FIG. 1 is a half cross-sectional view showing the device of the present invention, and FIG. A vertical cross-sectional view cut along the two planes to be set, Figure 3 shows the basic arrangement of various friction wheels and the weights that generate the force applied to the friction wheels. FIG. 4 is a half cross-sectional view showing the vector of the writing force, and shows a second embodiment of the device of the present invention. FIG.

As shown in Figure 1.2.3, the basic structure of the decelerator of the present invention is that of the conventional two-sun orbit gear. It is the same as a car-type external cycloid type reducer, and each wheel has no teeth and has a pitch circumference. It is also called a friction wheel, and due to the effect of the means described later, all the wheels are mutually rotated two by two. They are being pushed together very strongly.

The active rotating parts of the decelerator of the invention are housed in a cylindrical casing 1, each of which Two circular orbit widths 10 with a large diameter D5 fixed concentrically within the side lid body 11 are connected to the cylinder. It is provided in the shaped casing 1.

The components of this rotating assembly are: the high speed rotating drive to capture/convert the knee; Driven by an external input shaft that transmits dynamic torque at the speed of the drive machine Center-driven rotary body (main shaft) 2° This central-driven rotary body 2 is attached to its two carrying hubs 20. It is characterized by the pitch diameter DO of the provided roller grooves.

-Protrudes outward on the opposite side to the input shaft 2, and is reduced in output rotation speed N2 It is integrated into the output shaft 3 that drives the passive machine, and the two ball bearings 3 in the casing Concentric assembly planetary gear connecting link holder 30° supported by and rotating at holder 3 0 are 2 that are firmly connected to each other at regular intervals by a bonding material 32. It is composed of two side plate bodies 31.

The center drive rotating body 2 has roller grooves each having a diameter DO at both ends. It is supported by three rotating rollers 4 having a diameter D1. Roller 4 rotated from 120 degrees Three shafts 40 are arranged at intervals and are implanted in two side plate bodies 31 respectively. Rotates freely around the axis. That is, they are arranged at 120 degree intervals, and one rolling Each end 20 of the central drive rotating body 2 is supported by these rotating rollers 4 forming a bearing. friction is actively applied to the transmission without creating harmful passive resistance. use

The planetary gear link retainer 30 is the base of this mechanism. A two-wheel drive that rotates the star gear or sun gear in orbit. - It is installed at 60 degrees to the left and right of the roller 4 that rotates at 120 degree intervals, and the orbit Three planetary gears of mass M surrounding the inner 50, i.e., a sun gear with a weight of 5° The diameter DM or radius RM of the inner track 50 is determined by the straight line provided on each side plate 31. It is determined by the positions of the three accommodating portions 35 that accommodate the shaft end (hub) 51 having the diameter d2.

Three weights are provided at 30 degrees to the left and right of the sun gear 5 at intervals of 160 degrees, The six outer planetary gears, that is, the outer sun gear 6°, each having a mass m smaller than the quality iM. The six planetary gears serve to support the three weight sun gears 5, A shaft end (hub) 56 with a diameter d3 provided along the outer periphery of each side plate body 31 is It is determined by the positions of the six opening accommodating portions 33 to be accommodated. Diameter Dm or radius R It surrounds a larger orbit 60 than said orbit 50 of m.

Each buff 61 with a diameter d3 of these six outer sun gears 6 has a straight line larger than the diameter d3. A gear 62 with a diameter D3 is added.

Each pair of gears 62 of two adjacent outer sun gears is provided with a housing portion 35. The two rotary bearings of the sun gear 5 are aligned with the housing on the side plate 31 It forms one of the The accommodating portion 35 has a radial clearance that unifies the force when functioning. Positioning is possible because it is set so that it is not fully supported and therefore does not generate passive resistance. It only functions as On the other hand, the hub 51 of the sun gear 5 is connected to the gear 62. The two tangential rotational friction forces applied to act to synchronize the rotation of gear 62, but This acts on the uniform transmission of torque in the assembly.

Further, the outer sun gear 6 is fitted into a plain bearing formed by the opening housing portion 33. The two shaft ends (rods) 61 that are fitted together are connected to a straight shaft that is integrated into the casing 1. It is housed in the cylindrical holes of two stationary bearing rings 10 with a diameter D5 or a radius R5. It is supported by The outer sun gear is firmly supported by centrifugal force. The space is fixed by the opening housing part 33 of the side plate body 3J. is maintained.

A tangential pushing force resulting from this transfer acts on one side of this half bearing, resulting in The resulting rotational movement is directed along the direction of this pressing force to the one side, the retainer 30, and It is transmitted to the output shaft 3 which is integrated into the retainer 30.

Two outer sun gears 6 adjacent to but not in contact with the same weight sun gear 5 The gear 64 is an intermediate gear which connects the weight sun gear 5 to the central drive rotary body 2. It rotates around and contacts roller 4.

Thus, the central drive rotating body 2 rotates and transmits its motion to the rollers 4 due to rotational friction. The rollers 4 transmit this movement to the gear 64 and thus the casing 1 are transferred along the two circular orbital axes 10 and drive the planetary gear coupling link retainer 30. The motion is transmitted to the hub 61 of the outer planetary gear 6.

The weight sun gear 5 is driven by orbital rotation at a speed N2 and is set at a ratio d2/Do. It rotates by itself at the specified rotation speed (NO if d2-DO). These three qualities j1M The centrifugal force generated by the orbital attraction is used to push the friction wheels together.

Similarly, the outer sun gear 6 rotates by itself at the rotation speed N1 due to the orbital rotation at the output rotation speed N2. Turn around. The three weights are lighter than the sun gear 5, but the gravitational force of these six masses m is generated. The centrifugal force also acts on the mechanical drive effect due to friction transfer.

The diameter Do provided on the central drive rotor 2 at the shaft end (hub) of all sun gears A roller groove similar to that of is provided. However, its diameter (weight sun gear 5 can be equal to d2, outer sun gear 6 can be equal to d'3), or DO It can also be different from. Does the diameter d3 affect the final reduction ratio, or does d2 It's irrelevant.

During operation, the radial play of the free rotation roller 4 in relation to the shaft 40 is Due to the symmetry of the radial force applied to the rollers 4, the rotating rollers 4 are self-aligned. The 4° axis is set so as not to bear any burden on the cutting edge. Therefore this axis 40 also only has a positioning function, and the passive resistance is the bearing 34 of the retainer 30. It exists only in the two ball bearings and the six opening accommodating portions 33 of each side plate 31.

The rotating rollers 4 and the large gear 62 of the outer sun gear 6 are connected to the hub 2o of the central drive shaft 2, It is an intermediate gear between the weight sun gear 5 and the hub 5I, and the weight sun gear 5 If the diameter d2 of is DO, the weight sun gear 5 rotates at the rotation speed NO of the central drive shaft 2. do. The weight sun gear 5 does not transmit the force transmitted to itself to any other gear. First, since it only serves to synchronize the gear 62, NO can be made optional. can.

The center drive rotating body 2 is clamped at 3 locations at 120 degree intervals using 2x3 rollers 4 that turn from the ground. This means that if three sun gears 5 and six outer sun gears 6 are used, Therefore, as shown in Figure 3, 120 degrees, 6o degrees.

This means that three corner divisions of 30 degrees are used. Diameter of central drive rotor 2 Once Do is determined, the dimensions of the assembly and most of the straight lines can be determined by the diameter D5 of the stationary ring. The diameter is determined.

In Fig. 3, it is d2-d3 leprosy DO, but d2. d3 as different from DO Alternatively, d2 and d3 can be different. for example, d3<D.

Then, in order to keep Dl unchanged, D3 must be increased, so , d2 must be increased in order to keep RM unchanged. because , two adjacent to the axis of the central drive shaft 2 with complete elimination of radial play. The sun gear 5 has a weight at the center of the equilateral triangle formed by the axis of the outer sun gear 6 and the axis of the outer sun gear 6. This is because RM is set so that the center of Thus each weight To make the diameter of the cylindrical weight M attached to the positive gear 5 as large as possible. , which determines the value of the centrifugal force generated in RM. However, be sure to It is not necessary to do so, but it is necessary to confirm the weight M that requires space as a length. RM can be made smaller than this if space can be maintained. Also, Mr. Considering the width that should be given to various friction wheels, we reduced the dimensions of the ultra-high speed rotating shaft and at the same time In order to increase rigidity, the high-speed rotating shaft must be made as short as possible. The length of the device is also determined by this factor.

Also, the diameter d2. d3. Once D3 and the orbital radius RM are determined, the diameter of the rotating roller 4 is determined. D1 will also be decided. Due to the radial play of the housing portion 35 of the shaft end 51 of the weight sun gear 5 , the RM is set sufficiently so that all the gears 62 of the outer sun gear 6 can be installed. It can be made smaller in minutes. However, during operation, as shown by the dotted line in Figure 3, However, due to the strong pressing force applied to the outer sun gear 6, there is a slight angular displacement and a slight imbalance. The same eccentricity occurs.

The working principle of the system of the invention is as follows. Push friction wheels together The centrifugal force applied to the It will be done. Each of these three radial forces is tilted 60 degrees with no play. It consists of two equal and symmetrical forces. The resultant force of these two tilting forces is mainly It is excellently constructed to press the hub 61 of the outer sun gear 6 against its bearing ring 10. act on the central drive shaft 2 along the concentric direction while

On the other hand, the quality of the six outer sun gears 6, which also rotate in orbit, and the eccentric distance Rm A proportional centrifugal force Fc' is generated, but this centrifugal force Fc' is a radial centrifugal force. Therefore, it does not act toward the central drive shaft 2. Furthermore, structurally this quality fjkm The quality of the weight sun gear 5 j1M is not large, so the orbital driving radius Although this second centrifugal effect is much larger, this second centrifugal effect is significantly larger than the first centrifugal effect. Very small.

However, this second centrifugal effect is caused by the hub 6 dislocating within the holes of the two stationary races 10. 1 is added to the force received from quality 1iM.

The rollers made up of the large gears 62 of the two adjacent outer sun gears 6 Since each weight sun gear 5 is supported by a weight bearing, the force generated in the radial direction The centrifugal force is divided into two equal 60 degree tilted/symmetrical vectors that tend to move away from each other. It will be done. Therefore, each weight sun gear 5 tries to approach the rear outer sun gear 6. , the outer sun gear 6 and the sun gear next to it are also separated by a second dead sun gear. , the same shall apply hereinafter.

However, the rotating rollers 4 are pressed against each gear 62 from the middle, and the resultant force is centripetal in the radial direction. The spinning roller 4 is pushed toward the center by two equal convergent forces. This proximity of the two outer sun gears 6 to each other is therefore restricted. Like this, three The centrifugal force generated by each weight sun gear 5 is entirely absorbed by the outer sun gear 6. It acts preeminently to press the hub 61 which is attached to the bearing ring 20, and , 12 by the rollers 4 that are rotated because they are pressed against the roller grooves 20 of the central drive rotor 2. It is transmitted towards the center as three equal vectors spaced 0 degrees apart. write Then, the central drive rotating body 2 is clamped as if it were clamped by a three-clamp type chuck. It is supported by rollers 4 that rotate as if supported by bearings, and the rotational friction effect The high-speed rotation is transmitted to the rollers 4 through rotation.

In this way, the conventional electromagnetic induction method can be used without using any other materials. An active shaft that is a means by which the drive torque of that shaft can be captured instead of the guided effect. Uke or composed.

Secondly, a rotational friction drive is provided by the six outer sun gears 6, here a push The force is generated by two separate centrifugal effects, namely the weight sun gear 5; The difference is that the mass m of each outer sun gear 8 is combined.

The forces acting in the device of the invention are as follows. The size of each weight sun gear 5 A radial vector Fc equal to the centrifugal force generated by It consists of new symmetrical vectors Fc', and each vector Fc' is located on both sides. toward the center of the outer sun gear 6, which forms an angle of 60 degrees with the initial vector Fc. vinegar. Thus, the parallelogram of force is made up of two equilateral triangles, so The magnitude of the two vectors Fc' is equal to Fc.

Answer: Fc' is pressed against the large gear 62 and is pushed onto the outer sun gear 6. is transmitted and therefore to the large gear 62 of the counter hub 51 of the sun gear 5. inside the outer sun gear 6 along the direction set by the center line passing through the contact point. It is possible to travel to the heart. Here, the vector Fc' is the following two forces divided into That is, the hub 61 of this outer sun gear 6 is pressed against the bearing ring 10. , which acts on the bearing ring lO and produces a fulcrum reaction force Ra with the same magnitude and opposite direction. force Fa and the vector that moved earlier in the direction of the adjacent outer sun gear 6. This is a force Rp that applies a pressing force in the vertical direction to Fc'.

Two forces Ra on the center of a given outer sun gear 6.

Rp is synthesized in the direction of the transfer contact point between the large gear 62 and the rotating roller 4. This results in a resultant force Rf acting on the center of the rotating roller 4, which is located next to it in the same diagram. Added to this is another force Rf of the same magnitude transmitted from the outer sun gear 6.

The radial force Er finally generated by the combination of these two convergence vectors Rf or act on the central drive rotary body 2. This resultant force is twice the initial centrifugal force Fc. Easy to check: Er-FcX2゜ Conventional equipment using electromagnetism In the device of the present invention, the guiding planetary gear is transferred directly in the bore of the raceway. In the installation, if the overall dimensions are the same as the conventional device, the weight sun gear 5 is It is necessarily located on a circular orbit reduced to (approximately 1/2), and therefore, Its diameter and mass are both small, and the centrifugal force applied to the sun gear 5 is It is 1/4.

In the system of the present invention, instead of three guiding planetary gears, a There are six outer sun gears 6 that roll at has a mass such that m<M. Therefore, the generated centrifugal force Fc' is also small. However, the centrifugal force Fc' acts on 12 rollers instead of 6, and each outer sun gear 6 The fulcrum reaction force of the attached roller 61 is Q-Fa+Fc', so there is some compensation. Atonement will be made.

Regarding this friction wheel, relative slip must be completely prevented and immediately stopped. No. Otherwise, wear may occur very quickly. This slip The conditions are the natural friction coefficient, the condition of the transfer contact surface, its oil slippage, and the mutual interaction. Determined by the pressing force. As shown, it is sandwiched between the rotating rollers 4. The pressing force Er at the position of the central drive shaft 2 between the roller grooves 20 is This is significantly different from the force Q that presses the hub 61 of the gear 6 against the stationary bearing ring 10.

The first friction condition is determined by the drive torque capture ability of the primary system of the device. The friction condition 2 is determined by the transmission capacity of the secondary system. Pressing is force Er, Q is M, m Therefore, the optimum M/m ratio is determined to equalize the drive torque capture ability and transmission ability. is obtained.

Decrease the orbital radius RM, thereby increasing D3 and making M as small as possible. (This result can be obtained by reducing not only Fc but also Fc'. be able to.

This method should be used if it is desired to increase the reduction ratio involving the diameter D3.

The above dimensions and the newly set RM make it no longer possible to increase the volume, and the mass If M must be increased, this sun gear should be made of a material with a density such as lead. It can be a hollow body ballasted with very large metal.

Each of the auxiliary gears has a pitch circle diameter d that meshes with the internal gear 12 having a pitch circle diameter D5. The hub 61 of the outer sun gear 6 is shifted along the bearing ring 10 by the gear 63 of No. 3. It can be used only for the purpose of preventing the hub 61 from slipping when .

Although the stress is not zero, a gear train with a very small d2/D3 ratio can It is also conceivable to mechanically connect the sun gear 5 and the six outer sun gears 6. lastly In order to completely prevent accidental slips such as when the rotation speed suddenly changes, the weight sun tooth Considering the inertia of the wheel 5, these three weight sun gears and the center drive rotating body 2 are set to d2/ It is considered that they are connected by a gear train with a DO ratio, and that the stress in the stationary region is also zero. available. In this way, even if the rotational speed is high, this auxiliary tooth will only temporarily supply water. I'm sure you can withstand it.

Thus, the device of the present invention reduces the work of the gear teeth of a reducer at very high rotational speeds. By transferring the load to the car, the load is released and the gear only has synchronization and auxiliary functions. make them do

The device of the invention avoids the constraint that the bearings must be immobile.

Furthermore, in the device of the present invention, the bearing is a rolling bearing, and the passive resistance Bearings are active because they act on

This rotating body and sun gear all have diameters exactly the same as the pitch diameter of their auxiliary gears. rotate by being pressed together by matching friction wheels, and thus The relative positioning of the auxiliary gears is always perfect. In contrast, conventional bearings The meshing play is influenced by the oil sliding clearance, and its influence is recognized to a greater or lesser degree.

The reduction ratio is set as follows. The transmission system is a central drive shaft that rotates at high rotational speed NO. 2 through a retainer 30 to an output shaft 3 which rotates at a constant speed N2. The story The dynamic system sequentially passes through gears with different diameters, from DO to Dl, D From l to D3, which is integrated with d3, from d3 to the retainer 30, Therefore, the diameter DO, D3. It is only related to the equation of the reduction ratio consisting of d3°D5, and d2 It has nothing to do with Dl.

The first deceleration is via a detour wheel of diameter DI-DO, which is related to diameter DO, D3. The roller ts20 of the central drive shaft 2 rotating with NO and the large gear 62 of the outer sun gear 6 The rotation speed of the outer sun gear 6 and its integrated haplo 1 is N1. -N .

XDO/D3 or No-NIXD3/DO.

The second deceleration is caused by the movement of said no\pro 1 of diameter d3 rotating at rotational speed N1 and a bearing ring 10 on which the hub 61 rotates to drive the retainer 30 at a rotational speed N2; is executed between. In the case of a regular reducer, the output speed is N2-NIX (d3XD5 ), so No/N2- (D3/DO)/(d3/D5), that is That is, N1-NOx (Do/D3) or No-NIX (D3/DO) and N2-NIX (d3/D5).

However, in the case of a sun gear type device, the rotation direction of the drive shaft 2 and output shaft 3 is the same. or vice versa, once this ratio becomes larger or smaller by 1 , the final result is No/N2-(D3xD5)/(DOxd3)±1.

Another embodiment of the device of the invention is shown in FIG. In the first embodiment, the weight The positive gear is connected to the drive rotor through a pair of gears, or what about the reduction? It does not have any function, it just rotates by itself in synchronization with the gears that are pressed against it.

However, this weight sun gear and two sets of three rotating rollers make it consistent. The rotation direction of the secondary system and secondary system is finally reversed, so the reduction ratio is reduced by 1. Become.

In the second embodiment, in order to keep the rotation direction the same and take advantage of the improvement in the reduction ratio, the following Make changes.

In place of two sets of three rotating rollers 4 that act as bearings for the driving rotating body. From two sets of three sets of weights with a diameter much smaller than the diameter of the hub of the sun gear. Use rotating roller 4'. This roller is also attached to the large gear 62 of the outer sun gear 6. transfer contact, and as in the previous case, it acts as a separation limiting contact body for the outer sun gear 6. do. However, this roller has a smaller diameter and the position of its supporting axis is larger. Because it is eccentric, it does not come into contact with the hub 20 of the central drive rotary body 2, and a set of six It no longer functions as a bearing for the two sets of auxiliary rollers 7.

This auxiliary roller 7 is inserted into the annular space around the center drive rotating body 2, and has a free play. The inner shaft attached to the shaft embedded in each side plate 31 of the retainer 30 with It is an intermediate gear.

Therefore, the number of rollers carrying the central drive rotor is 120 degrees with stripe spacing. There are 2 sets of 6 points at 60 degree intervals, and 1 set of 6 points, so the number of transfer points is In the previous case it was three, and in this case it is six.

These two sets of six rollers 7 and one set of three rollers that are more eccentric than these rollers. Transfer contacts between the two sets of rollers 4' are located on each side. That is, for 120 degrees Regarding the first set of strip spacings, the hub 20 of the drive rotor 2 and the two outer The three shafts are pushed towards the center by a pair of large gears 62 in the sun gear 6. The same <120 degree stripes between the rotating roller 4' and alternating with those of the first set. As for the second set of separated parts, the center drive rotary body 2 and the hub 51 of the weight sun gear 5 are connected to each other. The cluster of rollers 7 is also between the two adjacent outer sun gears 6. Pressed against two sets of rollers 4' that are pushed toward the center by a pair of large gears 62 I get kicked.

This mutual pressing is effected by the direction of synchronous rotation thus ensured.

The centripetal force transmitted from the roller 4' pressed by the pair of large gears 62 is the central drive It is not directly transmitted to the corresponding hub 20 of the rotating body 2. This centripetal force has two obliquely symmetrical directions. It acts on two adjacent intermediate rollers 7 spaced apart by 60 degrees along the direction.

These two rollers 7 are mainly connected to the hub 20 of the drive rotary body 2 due to the effect of this pressing force. serves as a double fulcrum for the hub 51 of the sun gear 5, and Limit separation.

By statically balancing the whole, the same pressing force acts on each roller. It acts radially on each hub of the drive rotor along the centripetal direction.

Finally, due to one and the same centripetal force derived from the centrifugal force generated by the three sun gears, Thus, each hub of the drive rotor is tightened at six points spaced at 60 degree intervals. the result is the same as in the first embodiment, but the rotation direction of the driven shaft is the same as the rotation direction of the drive shaft. Therefore, the reduction ratio is further improved, and the reduction ratio becomes even larger with the same gear diameter.

On the other hand, doubling the number of transfer contact points with respect to the drive rotating body doubles the single pressing force. As a result, the sun gear can be made heavier and the acquisition/transmission capacity of the drive shaft can be increased. It is advantageous in that it can be done.

Furthermore, there is an intermediate friction wheel between the hub of the drive rotating body and the /1 gear of the weight sun gear. , because it is strongly pressed in the force system organized like this, the pinion of the pinion The meshing play is strictly controlled by constantly pressing the gears that have the same diameter as each other. The advantage of maintaining the same position is achieved through the triple auxiliary gear train that connects this rotating body. You can also give.

In the first embodiment, a double gear train between the drive rotor and each weighted sun gear is used. In this case, the rotational speed increases and the mounting play between the gears completely disappears. The moving pinion is necessarily separated from the centrally located driving gear7, and its eccentricity causes As a result, the meshing fusion a will inevitably become larger, which is disadvantageous.

Finally, gathering all the gears on the same side makes it easier to oil the gears and It is also possible to significantly reduce the length dimension.

The complexity introduced is actually less than it seems, especially with large reduction ratios. In some cases, the second embodiment may be preferable due to the above advantages. .

international search report Summary book Do not press strongly against each other between the driving rotor (2) and the output shaft (3) of the driven rotor. The second method utilizes the mechanical drive effect due to rotational friction obtained by shifting the matching friction wheels. Heavy external cycloid gear train type friction wheel reducer for high-speed rotating machines.

Due to the centrifugal force derived from the orbital rotation of the weight sun gear (5) of quality ffi (M) The force generated causes the outer sun gear (6) to abut against the periphery of the gear (62). is transmitted from gear to gear to the drive rotating body (2) through the outer sun gear (6). The carrying hub (61) is supported and rotated by the circular orbital shaft (10), and the rotational movement is caused by the sun gear. Captured by the side plate (31) of the connecting link retainer (30), the sun gear connection It is transmitted to the output shaft (3) in which the link retainer (30) is integrated.

international search report

Claims (1)

[Claims] 1. Press strongly against each other between the driving rotor (2) and the output shaft (3) of the driven rotor. Utilizes the mechanical drive effect of rotational friction obtained by transferring the attached friction wheels. , a double outer cycloid gear train type friction wheel reducer for high-speed rotating machines, which has a mass (M ) is generated by the centrifugal force derived from the orbital rotation of the sun gear (5). The pressing force is applied to the gear via the outer sun gear (6) which is in contact with the periphery of the gear (62). Transmitted from the wheel to the gear wheel to the drive rotary body (2), the carrying hub of the outer sun gear (6) (61) is supported by the circular bearing ring (10) and rolls, and the rotational movement is caused by the sun gear connecting link. The sun gear connecting link retainer is captured by the side plate (31) of the sun gear retainer (30). The holder (30) is transmitted to the integrated output shaft (3), thus preventing slippage. The theoretical ratio set by the diameters of these various friction wheels that engage each other without accompanying A decelerator characterized in that deceleration is performed according to the following. 2. A weighted sun gear (5) having a mass (M) is connected to a gear (6) of an outer sun gear (6). 2) is supported by its hub (51) while transferring along the periphery of the The inclined components of the centrifugal force generated by the orbital rotation of the mass (M) of the positive gear (5) are adjacent to each other. trying to separate the two supports of the two gears (62) that are An attempt is made to move the outer sun gear (6) away and bring it closer together, and its displacement causes it to spin around and cause the roller (4) to move closer. ), from which the rotating roller (4) is limited by the hub (2) of the central drive rotary body (2). 0), the gear (62) rotates and contacts the roller (4). The center drive rotating body (2) is tightened by the radial centripetal force, and the slide The drive torque and mechanical energy are captured by rotational friction without any friction. is captured by the central rotating body (2), and the friction coefficient of the structure and the strength of the pressing force are Claims characterized in that they are transmitted within adhesion limits set by The speed reducer described in paragraph 1. 3. The rotating roller (4') from the small diameter is blue, and the rotating roller (4') from the small diameter and the center drive rotation are blue. It has rotating rollers (7) from the middle between it and the rolling body (2), and each side plate of the cage (30) A rotating roller (7) is attached to the shaft with the value (31) set from the middle. , the generated centripetal force is generated between two intermediate rollers that are adjacent to each other along two obliquely symmetrical directions. The speed reducer according to claim 1 or 2, characterized in that it acts on (7). . 4. In order to adjust the mechanical transmission capacity according to the material used and the friction coefficient obtained, The harpoon sun gear (5) is a hollow body ballasted with extremely dense metal such as lead. The deceleration according to any one of claims 1 to 3, characterized in that: vessel. 5. Claim 1, characterized in that the gear used is equipped with an auxiliary gear. The decelerator according to any one of Item 4 above. 6. A small gear (63) that meshes with an internal gear (12) provided on the bearing ring (10) Claim 5 characterized in that it is provided in the outer sun gear (6). reducer. 7. The various friction wheels and, if necessary, their gears are coated with a glossy finish of a given hardness. Any one of claims 1 to 6, characterized in that: Decelerator described. 8. The material used is a single or composite metal or non-metallic material. The speed reducer according to claim 7, characterized in that: