Electric drive of rotary motion

FIELD: engines and pumps.

SUBSTANCE: invention relates to drives and can be used as a drive with stepless RPM and torque control. Proposed electric drive comprises motor (1), motor RPM control system and planetary plate-type friction speed variator (2). Adaptive variator (2) comprises RPM pickup (5) with counter (4) on output shaft (3). Pickup (5) is connected to motor RPM controller (6).

EFFECT: higher torque and electric drive overload endurance, better dynamic properties and higher efficiency in low load range.

11 cl, 5 dwg

 

The invention relates to the field of drive technology and can be used as a drive with stepless speed control and torque.

The prior art planetary disk motor-variator with a forced adjustment of gear ratio by radial movement of the friction satellites using the ball pressure devices when the unregulated motor with a rigid characteristic (patents GB 13 84679, F16H 15/50, 19.02.1975 and EPO 459234 B1, F16H 15/52, 04.12.1991). The disadvantages of the devices adopted for the similar include low speed gear ratio, low efficiency motor-variator at low loads due to constant pressure in the frictional contact of the variator and the relative increase of the no-load losses of the motor.

Known drives with asynchronous motors, including part of the motor-reducers and motor-variators forced regulation, in which the frequency supplied to the induction motor current is regulated by a frequency Converter [Megchelen, Assembler, the General course of the drive. - M, Energoizdat, 1981, s]. The disadvantages of this device, also adopted for similar, is limited overload capacity, determined by the ratio of max is th torque to nominal and not exceeding 2-3. Starting torque device similar also usually does not exceed the rated more than 2-3 times, which is insufficient for some applications with high inrush loads. With decreasing frequency of rotation of the asynchronous motor with frequency regulation and self-ventilation of its allowable continuous torque is reduced, which further reduces the drive power (see, for example, journal of Gearboxes and drives No. 1(04) 2006, Pp.31-32).

Known adaptive planetary disk motor-variator driven by unregulated induction motor. Variable automatically changes the gear ratio depending on the load due to the fact that it contains a mechanical regulator in the form of a Cam disk, profiled working surfaces which interact with the spring-loaded levers by means of rollers. The levers can move the satellite under the action of the output torque of the motor-variator attached to the Cam disk from kinematically associated with the output shaft (Nwhole "Amazing mechanics...), ANAS, 2005, 127-128). The disadvantage of these devices, also adopted for similar, is the impossibility of compulsory regulation of the speed of the output shaft independently of the load.

Closest to the proposed invention the device is the first prototype is the actuator, includes an asynchronous motor, the planetary disk friction CVT with a forced adjustment of gear ratio and any system of speed control of an induction motor, for example, the frequency Converter [Nwhole, Weglokoks, Saurav, machine Parts. - M.: Publishing center "Academy", 2004, p.93]. The drawback of the prototype are slow adjustment of gear ratio, the impossibility of change when the stopped state of the output shaft, and a limited overload capacity.

The technical result, which directed the present invention is to increase the starting torque overload capacity of the drive, improve its dynamic performance, increase efficiency in the range of small loads.

This technical result in the implementation of the invention is achieved in that the drive of the rotational motion, including the motor, speed control motor and the planetary disk friction variator, variator is made adaptive and contains the speed sensor output shaft, electrically associated with the control system of the electric motor rotation speed.

Another feature of the invention is that the adapter is wny planetary disk of the variator consists of a Central inner and outer friction discs, installed respectively on the Central shaft and the housing and covering the lateral sides of the intermediate friction discs; mechanisms for the joint change of gear ratio and pressure, made in the form of swivel levers carrying the intermediate friction discs and mounted on the planetary variator associated with low-speed shaft, with the possibility of changing the position of the swivel levers, and mechanism of joint changes of gear ratio and pressure is made with the pushers on the swivel levers mounted for movement along the guide rails on the drive associated with the low speed shaft, and provided with elements loading swivel levers, and power elements of the axial action of clamping the Central friction disks to the intermediate, and the elements of the loading associated with the swing arm with the possibility of rotation of these levers in the direction corresponding to the reduction gear ratio of the variator from the Central shaft to the low-speed shaft, and guides, in number equal to the number of rotatable levers, made in the form of two cut having the shape of segments of a spiral and are located on both sides of the maximum radius measured from the Central axis of the variator, and these cuts are made convergent with each other on this mA is the maximum radius, and the Central internal friction discs mounted on a Central high-speed shaft is spring-loaded to each other with the possibility of a limited axial displacement and torque transmission, the intermediate friction discs mounted on the swivel levers with the possibility of rotation and axial movement, and the Central outer friction discs, made in the form of load-bearing elements of the axial action, mounted on the housing with the possibility of adjustment of the axial position of the Foundation at least one Central external friction disc, with the raceways on them.

Another feature of the invention is that the speed sensor is made in the form of an analog sensor.

Another feature of the invention is that the speed sensor is made in the form of an incremental sensor.

Another feature of the invention is that the speed sensor is made in the form of the encoder.

Another feature of the invention is that the speed sensor is combined with the bearing of the output shaft of the variator.

Another feature of the invention is that the motor is made in the form of an asynchronous motor.

In other the Ohm variant of the invention the motor may be made in the form of a synchronous motor.

Another feature of the invention is that the system of speed control of the motor contains a stand-alone inverter voltage as the output power level.

Another feature of the invention is that the system of speed control of the motor is covered by a negative feedback by the frequency of rotation of the output shaft of the variator.

Another feature of the invention is that the control system of the electric motor rotation speed includes calculating a crucial element to calculate the torque on the output shaft of the variator and covered a negative feedback on the output signal of the mentioned accounts-the crucial element.

Figure 1 shows the structural diagram of the drive with a frequency of rotation of the output shaft of the variator.

Figure 2 presents the structural diagram of the drive regulating a torque on the output shaft of the variator.

Figure 3 shows a longitudinal section of the adaptive disk planetary variator.

4 shows a view along a-a figure 3.

Figure 5 presents a view along b-B of figure 3.

The actuator (figure 1) consists of a motor 1, an adaptive disk planetary variator 2, with the output shaft 3 which is connected from the even-numbered element 4 sensor 5 speed. The best performance can be achieved using as the motor 1 contactless electrical machines, primarily asynchronous and synchronous with excitation from permanent magnets and induction. The sensor 5 speed can be either analog (sine-or cosine resolver), and discrete type (incremental or absolute reference). The aforementioned sensors are known [Practice drive technology. Servos. SEW-Eurodrive, edition 09/2006, 11322853/EN, p.48-58]. In one embodiment of the present invention, the speed sensor may be combined with the bearing of the output shaft of the variator in an integrated mechatronic site. Mentioned bearings with integrated sensors produces, for example, the SNR (series bearings ASB).

The present invention can be implemented in the form of electric drive with Sensorless indirect regulation of the output torque (figure 2). In this case, the composition of the control system additionally includes calculating a crucial element 8 to calculate the feedback signal torque. Algorithms for Sensorless drive control known [V.V. Rudakov Asynchronous drives with vector control. - L., Electroacoustic, 1987, p.19].

Adaptive disk planetary variator 2 (3, 4, 5) contains lead (Bystrom the command of the Central shaft 9, connected with the shaft of the motor 1, combined with the CVT 2 in one unit - motor-variator. Shaft 9 is planted on the key with the possibility of a limited axial displacement and torque transmission sleeve 10. The sleeve 10 by means of lugs 11 and nuts 12, and shaped pins 13 are planted Central internal friction disks 14. The disk is pressed against the intermediate friction discs 15 using Belleville springs 16, rests on the side lugs 11. The disks 14 are planted on the sleeve 10 with the possibility of axial movement within the tolerance of the axial elasticity of the springs 16. The outer Central friction discs 17 in contact with the intermediate friction discs 15, planted in the housing 18 with the sleeves 19 and 20 with lugs 21 on them. Between the disks 17 is closed or open ring 22, which determines the axial distance between the bases of the disks 17. The sleeve 20 is in contact with the end cover 23 of the housing 18. Thus, the Foundation of the disks 17 are clamped between the cover 23 and the stop 21. The cover 23 is attached to the housing 18, for example, by means of bolts 24, which are located on the ends of the cover 23 and the housing 18 around the circumference. The sleeve 20 is in contact with the disk 17 (3) its focus 21.

Internal friction disks 14 are in contact with the intermediate disk 15 on the raceways on the disks 14, which may be conical and convex is roidulous surface. External friction discs 17, made in the form of load-bearing elements of the axial action of disk springs, have raceways 25 of the toroidal shape.

The disks 15 are sitting on the axes with the possibility of some axial movement of the axes 26 in bearings 27. The bearings 27 mounted on the swivel levers 28, which, in turn, is rigidly fixed (for example, by means of pins 29) on the axis 30, or performed with her at the same time. Axis planted 30 can be rotated in a drive rod 31. Thus, the mechanism of the variator forms a friction planetary drive, where the outer Central friction discs 17 perform the role of epicycle, internal 14 - solar wheel, the intermediate disk 15 on the axis 26 in the bearings 27 of the swivel levers 28 - satellites, and drove 31 - the planetary carrier.

Swing arms 28 are performed with counterweights 32 (figure 4) increased or decreased the weight to increase or decrease the unbalance of the rotary levers 28. The rotary levers 28, for example, on their balances 32 fixed axis 33, which is rotatably seated rollers 34, role playing pushers Cam transmission, interacting with the guides 35 (Fig 3, 4, 5), the Guides are made in the form of notches in the disk 36, which is connected with the output shaft 3 of the variator. On the shaft 3 is planted (figure 3) can be rotated one end of the carrier 31, the another end of the led 31 is fixed with the possibility of a limited axial movement on the bearing 37 on the end of the sleeve 10. The other end of the sleeve 10 provided with a bearing 38, planted with the possibility of a limited axial movement along the output shaft 3. Thus, the sleeve 10 is limited by shoulders on the shafts 9 and 3 axial movement relative to the carrier 31 and the output shaft 3, there is no direct axial movement relative to each other. Thanks to the bearing 39, the sleeve 10 has a possibility of axial movement relative to the housing 18 with fixed therein disks 17. Thus, the axial position of the disks 17 are disks 15 with their axes 26, freely moving in the axial direction relative to the carrier 31, and the disks 14, enshrined in the springs 16 on the sleeve 10.

Guides 35 for rollers 34 in the disk 36, equal in number to the rotary levers 28, and therefore, the rollers 34, designed as two cut having the shape of segments of a helix (figure 5) and located on both sides of the maximum radius measured from the Central axis of the variator. These cuts are made converging with each other at this radius (rollers 34 figure 5), and divergent with decreasing radius. Between adjacent cutouts for the guides 35 remain crosspieces 40 to maintain the integrity of the disk 36 and its strength.

Swing arms 28 are made (figure 4) with fasteners 41 for connecting one end of prog is n 42 stretching. The other end of the spring 42 is fastened to the fastening elements 43 on the drive rod 31. Thus, the spring 42 to pull together the center of the ends of the rotary arms 28 carrying the disks 15 and press rollers 34 (pushers) to guides 35.

In the housing 18 of the variator is a lubricant, preferably a special variation, coefficient of friction between the friction disks. Device for filling, control and oil drain plug not shown.

For easy grease into the gap between the outer disks 17 ring 22 and the sleeve 20 can be performed with the radial holes. In the housing 18 on its inner cylindrical surface are longitudinal grooves 44 (Fig 3), passing under the sleeve 20, the ring 22 and the disks 17.

In the variant with a closed system of speed regulation (1) above, the actuator rotational motion is as follows. When the deviation of the rotational speed nothe output shaft 3 from the predetermined frequency n3the error signal dn is supplied to the controller 6, for example, proportional-integral-differential (PID) [Kim D.P. Theory of automatic control, Vol. 1, the Linear system. - M, FIZMATLIT, 2003, p.19]. The output signal fFecontroller 6 affects the frequency Converter 7, changing the rotational speed of the motor 1 thus, cobicistat of rotation of the output shaft 3 of the variator 2 matches. For example, lowering the output frequency of rotation nopositive the error signal dn leads to an increase in rotational speed of the electric motor 1, which is at a constant torque load resistance leads to an increase in frequency of rotation nothe output shaft 3 of the variator 2 to a given value of nC. With increasing moment load resistance ratio adaptive variator 2 is automatically increased, causing a reduction in the frequency of rotation nothe output shaft 3. In this case, the cruise control system increases the speed of the motor 1, ensuring the stabilization of the output frequency of rotation.

In some applications of electric drive (winding machines, rolling mills) requires regulation of its output torque. This can be done in a closed system torque control (figure 2), in which the actuator operates as follows. In calculating the decisive element 8 from the Converter 7 frequency of motor 1 in the form of electrical signals of a frequency of rotation nFeand torque TFemotor 1 and sensor 5 frequency of rotation of the output shaft 3 of the variator 2 the value of no. On the basis of these values and the known values of the equivalent moment of inertia of El is of tropinota and its mechanical efficiency, counting is a crucial element 8 according to the equations of motion of the actuator calculates the value of the output torque To, which is then subtracted from the signal generator torque TCas the negative feedback signal. the error signal dT is supplied to the controller 6 torque output signal fFewhich controls the rotational speed of the motor. When lowering the load resistance moment of the accounts is a crucial element 8 registers the reduction of the output torque Toand the error signal dT leads to the increase of frequency of rotation of the motor 1 and, accordingly, increase the output frequency of rotation nodrive until, while increasing the load resistance reaches a value of TCdefined unit of time.

Electronic control system by changing the rotation frequency of the motor, enforced regulation of the electric drive with adaptive variator 2, gear ratio is automatically changed under load. The adaptive property of the variator automatically change the transmission ratio in dependence of the torque on the output shaft 3 is fundamental to the present invention. The technical result of the invention reaches the I in the presence of the variator with the property of adaptability, that is not forced and automatic changes of gear ratio.

Adaptive variable 2 in the drive rotational motion is as follows. The operation of the variator starts with the minimum ratio, which is typically 1,2...1,3, i.e. the frequency of rotation of the shaft 3 (Fig 3, 4, 5) is the number of times less than the frequency of rotation of the shaft 9. When this torque from the shaft 9 through the plug, or other connection for torque transmission, is transmitted to the sleeve 10, sitting on the shaft 9 with the possibility of a limited axial movement. With sleeve 10 torque is transmitted to the lugs 11 and the inner Central friction discs 14, connected by a plug 13 with the sleeve 10 with the possibility of axial movement therein when the device is within the spring 16 with the transmission of torque. The disks 14 are pressed with the intermediate friction disk 15 with the two sides of the disc springs 16, turning its bases in the flanges on the supports 11. The lugs 11 are tightened to each other by a nut 12 on the sleeve 10 and the rotation transfer the torque on the disks 15, mounted on the axis 26, mounted for axial movement in the bearings 27, sitting on the swivel levers 28. The levers 28 are, in turn, is attached to the axis 30, planted with the possibility of rotation in the drive rod 31. When you lower and raise the disk 15, the pulley is between the disks 14, the disks 14 are moved in the axial direction of the sleeve 10 with the transmission of torque. The disks 15 are in frictional contact with the disks 17, simultaneously playing the role of external friction discs and power elements of the axial action of disk springs. The disks 17 are clamped between the lugs 21 of the sleeves 19 and 20 through the ring 22 and transmit torque (reactive) on the housing 18 by friction. Due to the fact that the axial dimension of the ring 22 is less than the axial distance between the bases of the disks 17, freely on disk 15 on their periphery, where their thickness is minimal, the disks 17 are always pressed against the disk 15 through the elastic deformation of the first. Thus, they transmit the force to the forming torque. The disk clamp 17 to the disks 15 increases as the lower disk 15 conical shape between the discs 17 with increasing elastic deformation of the latter, as disk springs. The disks 17 fixed to the body 18 in a certain axial position and install the disks 15, move freely in the axial direction in the drive rod 31, which is rigidly fixed in the axial direction in the housing 18. In position when the clamp disk 17 to the disks 15 are almost identical on both sides, the disks 15 are not subject to bending. In turn, the disks 15 set pressed these disks 14 in the same position, moving in the axial direction of the disks 14 together with the springs 16,the lugs 11 and the sleeve 10 on the shaft 9, and a drive rod 31. The clamping disks 15 of the disc 14 provided by the Belleville springs 16, remains approximately constant during axial movement of disk 14. This clip is much less pressure discs 17 to the disks 15 and significantly less dangerous from the point of view of wear of the raceway. In addition, lubrication of the variator, especially special variation of oil (for example, Senturk-50 manufactured in the USA, or VTM-1 domestic production) completely separates the friction surface, much reducing the wear of the raceway.

The change gear ratio of the variator is done automatically when you change the torque on the output of the low speed shaft 3, and thus, the variator independently adapts to the load. It happens this way. When torque on the shaft 3 is less than a certain value, the spring 42 draw between the fastening elements 41 and 43 and rotate the swing arms 28 so that the disk 15 mounted on their ends held as close as possible to the axis of rotation of the variator position (figure 3, figure 4). The gear ratio of the variator minimal. The rotation of the carrier 31 also contributes to the unbalance of the rotary lever 28 when performing balances 32 high mass relative to that at which the swing arms 28 are balanced. The increase in the resistance of rotation of the shaft 3 calls the AET increase in torque on the disk 36, United with him, which causes the rotation of the disk and moving the rollers 34 (pushers) in guides 35 in the direction of their maximum radial distance from the axis of rotation of the shaft of the variator (5). Depending on the direction of rotation of the shaft 9, this movement can be in one and in the other direction from the above-mentioned provisions of the rollers 34. Thus, the CVT can operate in reverse, due to the special form of the guides 35, located on both sides of the above provisions of the rollers 34 in the zone of maximum distance from the axis of rotation of the shaft of the variator.

This movement of the rollers 34 causes the angular displacement of the swivel levers 28, the tension of the springs 42 and removing a disk 15 from the axis of rotation of the shaft of the variator to the periphery. This entails an increase in the gear ratio of the variator, actually reaching values 8...9. Grease the contact areas of the disks 16 and 17 with the intermediate disk 15 is accomplished by penetration of oil through the hole in the sleeve 20 and the ring 22, and grooves 44 in the annular gap between the disks 17 and splashing its intermediate disk 15 during rotation of the carrier 31.

Thus, the present invention will improve handling ability and starting torque, compared with the known motor-reducer with frequency regulation and motor-variators, due to t the th, what adaptive variable is able to automatically increase the gear ratio under load, including when stopped output shaft, i.e. in the regime of heavy start. Another advantage of the invention is higher efficiency at low loads, in comparison with the known motor-variators as frequency controlled drive with adaptive variable-speed drive allows you to maintain an optimal operation mode of the electric motor, in particular due to the weakening of the magnetic flux and reduce reactive current. The design of the adaptive variable-speed drive allows you to quickly change gear ratio when a sudden change in operating conditions, which increases the dynamic quality controlled drives.

1. The drive rotational motion, including the motor, speed control motor and the planetary disk friction variator, wherein the variator is made adaptive and contains the speed sensor output shaft, electrically associated with the control system of the electric motor rotation speed.

2. The actuator according to claim 1, characterized in that the adaptive planetary disk of the variator consists of a Central inner and outer friction discs mounted respectively on the Central shaft and the housing and reach the living from the sides of the intermediate friction discs, the mechanism of joint changes of gear ratio and pressure, made in the form of swivel levers carrying the intermediate friction discs and mounted on the planetary variator associated with low-speed shaft, with the possibility of changing the position of the swivel levers, and mechanism of joint changes of gear ratio and pressure is made with the pushers on the swivel levers mounted for movement along the guide rails on the drive associated with the low speed shaft, and provided with elements loading swivel levers, and power elements of the axial action of clamping the Central friction discs to intermediate, and elements of the loading associated with the swing arm with the possibility of turning these levers in the direction corresponding to the reduction gear ratio of the variator from the Central shaft to the low-speed shaft, and guides, in number equal to the number of rotatable levers, made in the form of two cut having the shape of segments of a spiral and are located on both sides of the maximum radius measured from the Central axis of the variator, and these cuts are made converging with each other at the maximum radius, and the Central internal friction discs mounted on a Central high-speed shaft spring is together with the possibility of a limited axial displacement and torque transmission, the intermediate friction discs mounted on the swivel levers with the possibility of rotation and axial movement, and the Central outer friction discs, made in the form of load-bearing elements of the axial action, mounted on the housing with the possibility of adjustment of the axial position of the Foundation at least one Central external friction disc, with the raceways on them.

3. The actuator according to claim 1, characterized in that the speed sensor is made in the form of an analog sensor.

4. The actuator according to claim 1, characterized in that the speed sensor is made in the form of an incremental sensor.

5. The actuator according to claim 1, characterized in that the speed sensor is made in the form of the encoder.

6. The actuator according to claim 1, characterized in that the speed sensor is combined with the bearing of the output shaft of the variator.

7. The actuator according to claim 1, characterized in that the motor is made in the form of an asynchronous motor.

8. The actuator according to claim 1, characterized in that the motor is made in the form of a synchronous motor.

9. The actuator according to claim 1, characterized in that the control system of the rotation frequency of the motor contains a stand-alone inverter voltage as the output power level.

10. The actuator according to claim 1, great for the present, however, a system in which the speed control of the motor is covered by a negative feedback by the frequency of rotation of the output shaft of the variator.

11. The actuator according to claim 1, characterized in that the control system of the electric motor rotation speed includes calculating a crucial element to calculate the torque on the output shaft of the variator, and covered a negative feedback on the output signal of the mentioned accounts-the crucial element.



 

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27 cl, 4 dwg

FIELD: mechanical engineering, particularly continuous transmissions used as wide-range transmission mechanism.

SUBSTANCE: device for power transmission with variable velocity ratio comprises input 21 and output 27 members, leading draft member 7 and disc member 1 rotationally installed in case. Input member 21 transmits rotational moment of at least one leading draft member 7. Disc member 1 is coaxial to rotary shaft 2 brought into drive connection with at least one leading draft member 7 and is formed as driven member. Disc member 1 may be selectively moved in axial direction along rotary shaft 2 to change position of disc member 1 relative at least one leading draft member 7 to selectively change draft velocity ratio between leading draft member 7 and disc member 1. Output member 27 is displaced by rotary shaft 2 and is selectively brought into engagement with it to transmit rotational moment under determined velocity ratio relative input member 21.

EFFECT: extended velocity range.

27 cl, 4 dwg

FIELD: mechanical engineering.

SUBSTANCE: continuously variable transmission comprises housing, input and output shafts, reverse mechanism and multi-disk planet variator provided with planet reduction gear, which define a variator. The solar pinion of the reduction gear is fit on the output shaft with interference and its epicycle is secured to the housing of the transmission. The variator has epicycle mounted in the housing of the transmission and made of a stack of disks and solar pinion made of a disk stack mounted on the output shaft of the variator connected with the output shaft of the reverse mechanism. The carrier of the variator is connected with the carrier of the planet reduction gear and consists of two disks interconnected by means of tension bolts. The disks of the carrier have shaped slots the number of which is equal to the number of axles mounted in the shaped slots for permitting change of position and interaction with the disks of the solar pinion and epicycle. The gear ration controller is build in the carrier of the variator. The planet reduction gear, planet multi-disk variator, and reverse mechanism are axially aligned.

EFFECT: prolonged service life and expanded functional capabilities.

18 cl, 8 dwg

FIELD: mechanical engineering, automobile construction, in particular, rotational speed changing technique.

SUBSTANCE: variator has speed regulating mechanism made in the form of toothed differential mechanism, drive for speed regulation mechanism, planetary working frame 4 and planetary balancing frame 5, frame guide 11 and frame rotation casing 12. Frames 4, 5 are meshed with central toothed gear 3 and are placed, in conjunction with said gear, within frame guide 11. Two planetary working toothed gears 6, 10 are fixed within frame 4. Planetary working toothed gear 6 is fixed through cardan drive 8 and shaft 9 to variator housing 7 to rotate relative to frame 4. Planetary toothed gear 10 is connected through second cardan drive 8, intermediate toothed gears 21, 22 and toothed gear 23 to variator driven shaft 24 to run around first planetary working toothed gear 6. On increase of rotational speed or adjustment, frames 4, 5 are offset by centrifugal force relative to rotational center of drive shaft 1. On offsetting of frames, radii of rotation of planetary working gears 6, 10 relative to rotational center of drive shaft 1 are increased and transmission ratio is changed.

EFFECT: increased efficiency and provision for transmission of great powers by toothed transmission.

12 dwg

FIELD: machine engineering, namely stable-speed drives of subsidiary aggregates.

SUBSTANCE: drive includes planetary ball gearing 1000 with gradual variation of gear ratio; step motor, worm gearing. Planetary ball gearing includes planetary members having rolling contact with inner and outer raceways and it may gradually vary gear ratio in range 0.3 - 1.0. Inlet shaft of said gearing is joined with primary propeller such as crankshaft of transport vehicle engine through driving belt B1. Gearing includes at least one outlet shaft coaxial to inlet shaft. Processor analyzes revolution number of crankshaft and respectively varies gear ratio with use of step motor joined with worm gearing for keeping stable revolution number at outlet regardless of revolution number of crankshaft.

EFFECT: possibility for keeping stable revolution number of gearing regardless of revolution number of crankshaft of primary propeller.

21 cl, 18 dwg, 3 tbl

FIELD: machine building.

SUBSTANCE: invention refers to the sphere of machine building and may be utilised for design of transmission gears of tractive, transportation and other machinery as well as machine tool drives and other mechanisms to provide for smooth regulation of speed, speed reversal and brakeage of their actuator devices, the device described being capable of functioning as a master clutch, a gearbox, a reduction gear, a reverse box, a steering clutch or a brake. With the proposed planetary variator the central wheels (1, 2) are represented by hollow cone frusta whose outer and inner surfaces simultaneously contact the satellites (3) via a tooth-and-plate or toothed and tooth-and-plate gearing.

EFFECT: variator load capacity increase.

2 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: automatic continuously variable gear box contains planetary friction variator and mechanism of variation of gear ratio and pressure made in form of pivot arm (17) with pushers (23) installed so as to travel in guiding cuts (24) of disk (25) connected to low speed driven shaft (26). Guiding cuts (24) are made in form of two notches in disk (25) and have the form of spiral segments situated on both sides of their maximum radius of distance from the variator axis. Notches converge in the point of their maximum radius of distance from the variator axis.

EFFECT: invention facilitates reversed rotating of output low-speed shaft and also maintains automatism and reliability of operation of gear.

4 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: disk planetary variator contains body (10) wherein planetary row is installed; said planetary row includes central exterior (9) and interior (6) friction disks from both ends enveloping intermediate friction disks (7), secured of axes (20), designed to travel in carrier (25) and pressed to intermediate disks (7) with hold-down devices. Rolling races on the central friction disks contacting with the surface of intermediate disks (7) are made convex toroidal. Contact zones of resilient members (8) of axial action with circular stops (3) are situated on their peripheral circular part. Circular stops (3) are designed to travel in axial direction in body (10). In the variator there is facilitated optimal pressing of friction disks one to another, also there are avoided edge contacts at disks warps and there is reduced wear of contact zones of friction disks with one another and with circular stops.

EFFECT: invention increases efficiency and service life of variator.

8 cl, 7 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building and can be sued in automotive stepless transmissions. Proposed variator comprises inner (1) and outer (2) central friction disks coupled with drive shaft (13) and planetary mechanism annular ring (8), comprising satellite gears (6) fitted on axles (17) in pinion frame (18) articulated with variator output shaft (19). Disks (1) and (2) are coupled with shaft (13) and annular ring (8) via rolling bearings (14) fitted in inclined grooves (15) and (16) made in disks-stops (11) and (12) fitted on shaft (13) and annular ring (8), as well as in adjoining inner (1) and outer (2) central friction disks.

EFFECT: higher efficiency in wide range of torques.

8 cl, 14 dwg

FIELD: machine building.

SUBSTANCE: invention refers to machine building and can be implemented, for example in transport machine building as continuously variable transmission. The two-mode super variable speed case consists of case (1), base step-less transmission (2), and control mechanism (11) including matching planetary (12) and differential (13) gears; it also consists of output shaft of drive (27) designed to alternate kinematic connection with kinematic links of the control mechanism. Matching planetary gear (12) can be kinematically connected either with carrier (23) or with external central wheel (21) of differential gear (13). Internal central wheel (20) of differential gear (13) can be connected with output kinematic link (9) of base step-less transmission (2). External central wheel (15) of matching planetary gear (12) is connected with input kinematic link (9) of base step-less transmission (2). Internal central wheel (15) of matching planetary gear (12) is connected with fixed case (1). Output shaft of drive (27) can be connected either with external central wheel (21) or with carrier (23) of differential gear (13). The second version differs from the first one like follows: output kinematic link (9) of base step-less transmission (2) is connected to the external central wheel (21) of differential gear (13), while internal central wheel (20) contains singular tooth ring (22). The third version of the drive differs from the first two like follows: output kinematic link (9) of base step-less transmission (2) can be telescopic jointed to fixture (3 8) by means of splines (40); the fixture bears tooth ring (41) of internal mesh.

EFFECT: invention transmits torque with reduced revolution frequency from input kinematic link of step-less transmission to output link of drive which simplifies drive, increases its efficiency and eliminates high intermediate frequencies of control mechanism rotation.

9 cl, 6 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to mechanical engineering and can be used, particularly in transmission of vehicles, in the first place, cars. Multiplate planetary variator contains carrier (11), consisting of two sidewalls, connected by cylindrical tension buckle (10) by number of planetary gear (5) in row, got on by several rows with ability of rotation on axis (6), rigidly fixed between ends of extreme pivot rods (7), other ends of which, as a minimum, one group form them, located at one of sidewalls of carrier (11), are controlled and its movement it is regulated advantage of variator. Middle parts of extreme revolute arms (7) are connected to each other by pipes (9), inside of which there are located cylindrical tension buckle (10) of carrier (11) with ability of reciprocal rotation. Pipes (9), on which there are fixed revolute arms (7) and axis (6) of planetary gears (5) between its rods are rigidly connected by blackets. Revolute arms (7), its ties, blackest and axis of planetary gears form rigid system, but with ability of total or partial disassembling.

EFFECT: providing the ability to resist by dangerous bending stress and huge caving in of planetary gears with several rows of planetary gears on it, appearing at high rotating frequency of carrier, and also toughening junction by tension buckles of sidewalls of carrier at transferring of high rotational moments.

2 cl, 3 dwg

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