RU1820105C - Inertial transformer of torque - Google Patents

Abstract

Usage: in gears with stepless speed control "rashi and torque output link. SUMMARY OF THE INVENTION: the inertial transformer contains freewheeling mechanisms, the main and additional identical planetary pulsers with unbalanced satellites f on which moving loads are connected, connected with the control mechanism. To increase the uniformity of rotation of the output link, the unbalanced loads of the satellites of the additional planetary pulser phase ka 180 ° in relation to unbalanced loads of satellites of the main planetary impulse., 5 ill.

Description

The invention relates to mechanisms that smoothly, steplessly change the magnitude of the moment and angular velocity of the output link at constant values of the moment and angular velocity of the input link.

An inertial pulsed automatic torque transformer of trucks is known, in which the drive transmission shaft is made in one piece with the front cover of the drive flywheel, made collapsible and bearing rolling bearings, in which the axis of the satellites with unbalanced loads fixed on them are mounted, and the satellites are engaged with a central gear fixed at one end of the propeller shaft of the car, rigidly connected to the inner race of the freewheel,

wherein the outer race is connected to the transmission housing, wherein the second end of the driveshaft carries a flywheel 1J.

The transformer has the following disadvantages.

1. The gear ratio in it changes only when the moment of resistance changes, it cannot be changed purely kinematically, that is, in the absence of a moment of resistance in it, it is impossible to control its output characteristic - the value of the output moment and the value of the angular velocity of the output shaft.

2 “For one half of the period of one oscillation of the pulsator, a positive momentum of the torque is transmitted to the output shaft, changing smoothly from zero to maximum and again to zero, and over the course of the second polo (Л

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the fault of the period, the negative momentum does not flow onto this shaft and the rotational movement to the working machine is transmitted only by means of the flywheel, which increases the unevenness of movement.

A close technical solution to the invention is an inertial torque transformer that contains input, intermediate and output shafts, two identical planetary series with four central wheels and two satellites with unbalanced loads, two free-wheeling mechanisms, a control device made in the form of a reversible hydraulic motor, the stator and rotor of which are connected to the two central wheels, and a controlled friction clutch securing the stator and rotor of the control device Transformer has the following disadvantages.

1. It cannot be used in non-hydroficated Machines.

2 It has a low sensitivity and inaccuracy of regulation,

3. The gear ratio in it changes only when the resistance moment changes. On the output shaft, it cannot be changed purely kinematically, that is, if there is no resistance moment in it, it is impossible to control its output torque characteristic.

 |. For one half of the period of one oscillation of the pulsator, a positive momentum of the torque: is transmitted to the output shaft, smoothly changing from zero to maximum and again to zero, and during the second half of the period the negative momentum is not transmitted to this shaft, since it is quenched the outer cage of the freewheel and the rotational movement to the working machine is transmitted only by means of a flywheel, which increases the unevenness of the movement.

The aim of the present invention is to provide an inertial torque transformer in which the rotation unevenness is reduced, the period of high output shaft is eliminated, two consecutive, unidirectional and simultaneously controlled by the magnitude of the pulse are obtained

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of torque with the ability to control the output torque characteristic, I

This goal is achieved by the fact that in an inertial torque transformer containing a housing, input and output shafts, freewheels, a planetary pulser including a central wheel, a carrier and unbalanced satellites with loads, and a mechanism for controlling the amplitudes of torque pulses, including a leading and driven links, the mechanism for controlling the amplitudes of the momentum pulses is made coaxial according to the planetary search scheme with the total gear ratio equal to unity at The mounted carrier, which is mounted freely on the input shaft with the possibility of fixed rotation, its driving link is connected by a gear to the input shaft, and the driven link is connected to the main central wheel of the planetary impulse, the latter has two additional central wheels identical to the main one, and two additional satellites. its loads are movable, the transformer is equipped with additional freewheel mechanisms and an additional planetary impulse, including the same main and additional central wheels associated with the respective additional central wheels of the main planetary pulser, one of which is also connected to the input shaft, carrier and installed on it main and additional satellites and moving loads, each of the moving loads of both planetary pulsers made in the form of a double eccentric, the inner race of which is connected to the main satellite, the outer race has a groove, and the additional satellite has a finger to interact with the groove, each and The planetary-pulsers are driven by the corresponding freewheel mechanism with the body and the output shaft, and the movable loads of the main and additional planetary pulsers are 180 degrees out of phase with respect to each other.

5

t M, - fmg. 1 shows the kinematic diagram of the proposed transformer pd. hh figs, 2-5 - respectively the seasons of LC, KI ,, CD and No., marked nl Fi g, 1.

The transformer comprises a housing 1, with which a carrier is pivotally connected, made in the form of a disk 2, connected to the same disk 3 by four quick-fit ts, to which the hinge of the hub 5 is connected, four double eccentrics on the inner cage 6 of which are sitting freely four outer clips 7 with grooves 8. R these grooves enter the fingers 3 of four additional satellites 10, which sit freely on the hubs of the clips 6 and engage with an additional central wheel 11, rigidly fixed to the central shaft 12. At the other end of this shaft fixed gear 13 engaged with a wheel 1h rigidly mounted on an intermediate shaft 15 bearing a gear 16 engaged with a drive link 17 engaged with a wheel 18 which is rigidly fixed on the shaft 19. This ox forms a hinge with the carrier 20, sitting freely on the central vapu 12 and carries a gear 21 rigidly attached thereto, which engages with the wheel 22 “Link 17-22 form a planetary mechanism in which links 17 and 2 are central wheels, link 18, 19 and 2j - a twin satellite, and link 20 - a carrier. Wheel 22 has a rigid connection with the hollow shaft of the main central wheel 23, which engages with the four main satellites 2, which are rigidly seated on the hubs 5 of the eccentrics 6. The input and output disks with four necks k form a single drum, n; the hub 25 of which the clip 26 of the freewheel clutch is rigidly fixed., Rollers 27 are located in the nests of the outer surface of this clip, interacting with the stationary outer clip 28 “The inner surface of the clip 26 interacts with the rollers 29 of the inner movable clip 30, rigidly connected to the output shaft 31 carrying the flywheel 32, encircled by a brake band 33. At the second end of the hub 5 are fixed four additional satellites Зч, which are meshed with an additional

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the center is the un-wheel ri, rigidly connected to the hub J.6 nl, the second end of which is fixed to the main NOR central wheel. 3 additional impulse meshing with. four main satellites 38, rigidly fixed to the hubs 39, pivotally connected

IQ with necks (0 of two I disks, which form the carrier of the additional impulse, and on the hubs 39 there are fixed the inner clips of 2 four moving loads, the outer clips 15 of which 3 have grooves, which include pins 5 of four additional satellites (6, pivotally connected to Hubs 39 h.

20 by the central wheel ch7, rigidly fixed on the second end of the central shaft 12, continued from the main impulse to the additional one, while the disks ch1 carry the middle

25 clip 8 of the free-wheeling mechanism of the additional impulse. In the nests of the outer surface of this cage, there are wheels of black holes in contact with the stationary outer casing 30 of my SO ,, The inner surface of the middle cage 8 is in contact with the rollers 51 of the inner movable cage 52, which is rigidly connected to the output shaft 31 of the flywheel 32.

35 Inertial TransFormt. The torque moment works as follows - in this way.

From the engine, the central shaft 12 is rotated, from which the gears 11, 13 and 47 are rotated. The gear 11 rotates the additional satellite 10 with a finger, which, with the help of the groove 8, rotates the outer

45 a yoke 7, which has an annular protrusion included in the annular groove of the inner yoke 6. From the additional wheel 7, the satellite bw is rotated with a finger 5, which.50 OVEN by means of groove h4 rotates the yoke 3, which has an annular protrusion included in the annular groove of the clip part 2. From the section KI and MN in FIG. 3 and FIG. 5

55 it is seen that the four clips 7 of the main impulse are directed along the radius from the center, and the four clips of the secondary pulsator are directed along the radius to the center of the device.

Angles of 180 ° are formed between the directions of the cages of the main and additional pulser, and the directions of rotation of the cages 7 and 3 are the same. A number of gears I-2 are driven from gear 13 of shaft 12; take satellite 2, which is closely connected to hub 5 of cage 6, rotates this cage. The gear ratio of the number of wheels 13-23 with the stationary carrier 20 should be equal to 3n-Na Na hub 5 of the satellite 2k, the additional satellite rigidly sits, which rotates the additional wheel 35 of the shaft 36, from which the main central wheel 37 rotates, and then the main satellite 38 of the hub 39 inner race 2. The gear ratio of the row of wheels Z-Z-b with a stationary carrier 20 should be equal to U54-36 Therefore, a single kinematic chain of gear wheels 13-38 with U ,, is formed. gu 1, - to rotate simultaneously the inner race 6 and 42C At the same time, the pairs of wheels 11-10 and rotate the outer race 7 and 3 from. one central shaft 12.

When carrier 20 is stationary, wheels 11 and 23 have the same angular velocity and do not have relative motion. Then, satellites 2 and 10 in the main pulsator do not have relative motion and the clips b and 7 rotate as a whole, all of the above applies to the operation of links 37, 38, 7, b, and 3 of the additional pulsator “FIG. C and figure 5 shows that the centers of mass of the goods 7. and 3 are located on the largest radius r. from the axis of rotation and 0 of the cage 6 and 2, and therefore, in this case, the maximum inertia force is developed by the moving loads of both of the impulses. This force creates a moment at a radius whose length R is equal to the distance from the axis of rotation of the shaft 12 to the axis of rotation k on the main impulse and to the axis of rotation -40 on the additional impulse. This length remains constant. Weights 7 and 3 are arranged in pairs on the vertical and horizontal axes of the device. Torque is generated by each pair of weights and changes in sign. If we consider the position of goods 7 and 3 in League, 3 and FIG. 5 as the initial one, then we can assume that in this position, 10

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twenty

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thirty

35

40

45

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The moments developed by the loads are equal to zero. When the goods 7 are turned 9-0 around the axis of the neck C (Fig. 3, section KL), the moments of two goods located on the vertical axis and the moments of two goods lying on the horizontal axis are both counterclockwise and are summed (positive moment) . When weights 3 rotate 90 ° around the axis of the neck 0 (Fig. 5, section MN), the moments of two weights located on the vertical axis and the moments of two weights lying on the horizontal axis are both clockwise (negative moment). When goods 7 and 3 are rotated 180 ° from the initial position, they are directed along the radii to the center of rotation and the moments developed by the goods are zero. “When goods 7 are turned 270 ° from the initial position, the moments of the goods located on the vertical axis and the moments of the goods, located on the horizontal axis, both are clockwise and summed (negative moment). When weights 3 are rotated 270 ° from the initial position, the moments of weights located on the vertical axis and the moments of weights located on the horizontal axis are both counterclockwise and summed up (positive: moment).

Consider the sequence of moments acting on the flywheel through the free-wheeling mechanisms of the main and additional pulsators. Let the middle movable clip 26 (FIG. 2) rotate clockwise under the influence of a negative momentum of the main impulse. In this case, the rollers 27 are jammed on the stationary outer race 28, and the rollers 29 are jammed on the inner movable race 30, which drives the flywheel 32 clockwise. In the considered turning section, the cargo A3 creates a positive moment. The middle yoke-8 rotates counterclockwise and the rollers 9 are jammed on the outer stationary yoke 50. The positive moment is neutralized. The flywheel 32, when clockwise moving, wedges the rollers 51 with the help of the internal movable yoke 52 and the MCX of the additional pulsator does not prevent the flywheel 32 from rotating. Let the medium movable yoke 26 rotate counterclockwise under the influence of a positive momentum. In this case, the rollers 27 are jammed on a stationary yoke clip 28, the clip 26 stops and the action of the positive momentum is neutralized. In this section, loads 43 create a negative moment. The middle cage 48 rotates clockwise, wherein the rollers 49 are wedged on the stationary outer cage 50, and the roller 51 is jammed on the inner movable cage 52, which transmits a negative momentum to the flywheel 32. Thus, in one half of the cargo turnover 7 and 43, a negative momentum pulse (clockwise rotation) is transmitted to the flywheel 32 from the main pulse generator, and for the second half of the turnover of these weights. A negative momentum pulse (clockwise rotation) is transmitted to the flywheel 32 from additional impulse 0a. Thus, during one revolution of cargoes 7 and k3 the flywheel has no sections when it is not under the influence of positive impulses. The unevenness of the flywheel movement is significantly reduced and the possibility of working without the flywheel appears. I. -....

When the carrier 20 moves, the relative angular velocity of the satellites 24 and 10 appears. In this case, outward: the clip 7 rotates relative to the inner clip 6, and the radius 4 of the rolling load p rotates around the neck 4. When the clip 7 is rotated relative to the clip 6 by an angle of .1.80, the radius of rotation of the movable load around the axis of the neck 4 is zero. In this case v, the inertia force is equal to zero and the torque relative to the axis of the shaft 12 is equal to zero. At the same time, the relative angular velocity of the satellites 38 and 46 appears in the additional pulser. In this case, the holder 43 rotates relative to the holder 42 and the radius changes rotation p of the rolling load about the axis of the neck-4.0 /. This radius takes the same values as the radius (3 in the main impulse. The value of the inertia force also takes the same values.

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Thus, the rotation of the moving loads and the regulation of the inertia force are carried out by the same kinematic chain. In the first case, when the carrier 20 is stationary, the transformer has one degree of freedom and the driving moment is spent only on the rotation of moving loads, In the second case, when the carrier 20 is moved, the transformer has two degrees of freedom. One degree of freedom is kept the same, i.e., “the momentum is expended on the rotation of the moving loads. The second degree of freedom arises from the movement of carrier 20 in the same kinematic chain, as a result of which the relative rotational movement of the clips 6 and 7 and the clips 42 and 4-3 appears. With this design, the angular velocity of the moving loads of both pulsers does not change with a change in the inertia force, i.e. when moving carrier 20.

For r m u l a invention

An inertial torque transformer comprising a housing, input and output shafts, a free-wheeling mechanism, a planetary pulser including a central wheel, a carrier and unbalanced satellites with loads, and a mechanism for controlling the amplitudes of the torque pulses, as opposed to so that, with. the goal is to reduce the unevenness of rotation, eliminate the period of the standoff of the output shaft and to obtain two consecutive unidirectional and simultaneously controlled by the magnitude of the pulses of torque with the ability to control the output torque characteristic, the mechanism for controlling the amplitudes of the pulses of the torque is made coaxial according to a planetary search engine with a total gear a ratio equal to unity when the carrier is stopped, which is set: it is freely set on the input shaft with the possibility of fixing A regular rotation, its driving link is connected by a gear to the input shaft, and the driven link is connected to the main central wheel of the planetary impulse; the last one has two additional central wheels identical to the main one, and two additional satellites, its loads are movable, the transformer is equipped with additional freewheel mechanisms and an additional planetary impulse-DOM, including the same main and additional central wheels associated with the corresponding additional central wheels of the main planetary pulser, one of which is also associated with the input shaft, carrier and installed on it main and additional gears LTL and moving loads, each of moving goods both planetar

of impulses is made in the form of a double eccentric, the inner ring of which is connected by a pine satellite, the outer ring has a groove, and the additional satellite has a finger to interact with the groove, each of the planetary pulsers connected by a corresponding freewheel mechanism to the housing and output shaft, and movable the loads of the primary and secondary planetary pulsers are 180 ° out of phase with respect to each other.

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