SU1551885A1 - Differential gearing - Google Patents

Abstract

The invention relates to mechanical engineering and can be used as a differential, installed in driving axles of vehicles. The aim of the invention is to increase the load capacity and reduce the dimensions of the gear differential transmission. This goal is achieved due to the fact that the device contains two coaxial semi-axial rows, one of which is wave, and the other is planetary. The flexible wave wheel wheel is rigidly connected to the central gear 9 of the planetary row, the second gear 10 of which is mounted on the input half-axis 4 eccentric about the transmission axis. 1 hp f-ly, 4 ill.

Description

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The invention relates to machine | structure and can be used as a differential, installed in drive axles of vehicles, vehicles.

The purpose of the invention is to increase the load capacity and reduce the dimensions of a toothed differential transmission.

Fig. 1 shows a principal kinematic diagram of a gear differential transmission; figure 2 is the same, a longitudinal section; on dsg.Z - section aa in figure 2; figure 4 - section 15 bb in figure 2; figure 5 is a section bb In figure 2.

The differential gearing gear comprises a hollow body 1 with a cover 2, inside which 20 input axles 3 and right 4 axes are coaxially mounted. In the slots of the half-axle 4, the unbalance sleeve 5 is fixed at one end, the other end of which is rotatably mounted in the opening of a 25 luosy 3. The left half-axis 3 is simultaneously a generator 6 of a wave transmission series, including a flexible wheel 7 and a rigid wheel 8, connect to the semi-axis 4. In this case, the half-axes 3 and 4 rotate as one unit with the transmission body.

When the vehicle is rotated, for example, to the left, the axles 3 and 4 rotate with different frequencies: the semi-axis 3 receives a lagging rotation to the housing 1, and the semi-axis 4 - overtaking. In the process of lagging the axle shaft 3 relative to the housing 1 due to the wave effect, the flexible wheel 7 is ahead of the rigid wheel 8. When the numbers of the teeth of the hard 8 and flexible 7 are different, the forest is equal to two in the same direction at the full turn of the body 1

H - 2-JWL. (,)

Lt

where cf is the angle of rotation of the flexible wheel

2g - the number of teeth of the hard wheel

When turning the car to the left, the right half 4 gets overtaking rotation. Then it rotates inside gear 10. At the same time, due to eccentricity, the gear teeth 10 enter into engagement with the teeth of the central gear 9 of the planetary row and roll them around, i.e. There is a process of redesigned with the housing 1. Flexible wheel 7, 30 that of the teeth in the flexible wheel 7. But, so

as the number of teeth of the flexible 7 and central 9 wheels are equal to and greater than the number of teeth of the pterstern 10 (for example, two teeth), then for one revolution of the semi-axis 4 around the axis of the gear 10, the flexible wheel 7 is ahead of the body 1 by these two teeth 10 cannot rotate around its axis, but only makes vertical bath ruts within two eccentricity values).

made in the form of a glass, rigidly connected with the central gear 9 of the second row of transmission — the planetary gear. In the planetary series, the central gear 9 is rotatably mounted in the housing 1 and communicates with the second gear 10, which is mounted eccentrically with respect to the transmission axis on the right-hand axle 4. The gear 10 has on the end surface protrusion fingers 11, which are located in response round slots 12 , made in the cover 2 of the housing 1. Gear differential transmission works as follows (for example, the drive axle of the car).

When the car goes straight along the hard road ahead or when one of the driving wheels hits the slippery ground, or when it hangs above the road, the rotation from the body 1 is transmitted through the rigid wheel 8 of the wave row to the flexible wheel 7 and then through the generator 6 - to semi-axis 3. At the same time, rotation from body 1 is transmitted to fingers 11 and through them to gear 10, and from it through the central gear 9 of the planetary row to the flexible wheel 7 and simultaneously to semi-axis 4. At the same time, axes 3 and 4 rotate as one unit with the transmission body.

When you turn the car, for example, to the left, the axles 3 and 4 rotate with different frequencies: the semi-axis 3, by penetrating the body 1, receives a lagging rotation, and the semi-axis 4 - overtaking. In the process of lagging the axle 3 relative to the housing 1 due to the wave effect, the flexible wheel 7 is ahead of the rigid wheel 8. With a difference in the number of teeth of the hard 8 and flexible 7 wheels equal to two, the last for one complete revolution of the body 1 turns in the same direction at an angle

H - 2-JWL. (,)

Lt

where cf is the angle of rotation of the flexible wheel;

2g is the number of teeth of the hard wheel.

When turning the car to the left, the right axle 4 gets overtaking rotation. Then it rotates inside gear 10. At the same time, due to eccentricity, the gear teeth 10 engage with the teeth of the central gear 9 of the planetary row and are driven around, i.e. There is a process of recalculation of the teeth in the flexible wheel 7. But, so

As the number of teeth of the flexible 7 and central 9 wheels is equal to and greater than the number of teeth of the ptestern 10 (for example, two teeth), then for one revolution of the semi-axis 4 around the axis of gear 10 the flexible wheel 7 advances the housing 1 by these two teeth (since gear 10 rotates around its axis can not, but only makes vertical oscillations within two values of eccentricity).

Thus, in one revolution of the half-axle 4, the flexible wheel 7 is ahead by an angle of 360 °

building I

c, - 2

(2)

0

five

where Z1 is the number of teeth of the flexible wheel. Thus, when turning the car to the left, the flexible wheel 7, which blocks (connecting) the wave and planetary gear sets between itself, receives an overtaking rotation at an angle

- - 360 ° equal to 2 - and does not prevent

 one

car wheels to make a turn on curved sections of the path.

The mechanism of the toothed dial (lee transmission works only in the case when one of the semi-axle wheels of the auto 8- Fig. 2

Fi.Z

Editor O. Golovach

Phil.5

Compiled by S. Kotelnikov

Tehred M. Didyk Proof-reader V. Tyrn

Order 316

Circulation 490

VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5

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9

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Claims (2)

Claim 1. Differential gear transmission, comprising a housing, two coaxial half-axial rows, one of which is wave with a hard wheel connected to the housing, and two input half-axes, one of which is connected to the car’s wheel generator is possible only on the inner wheel, when the car moves along a curved wheel path and hit on slippery ground. In this case, the slipping of the inner driving wheel does not exceed the difference of 15 angular frequencies of rotation of the running-in and lagging wheels, i.e. axles 3 and 4 rotate at the same frequency. The absence of jammed locking parts in the transmission allows him to instantly redistribute the torque to the semi-axis, which has greater adhesion to the ground, which makes it inertialess. The implementation of the gear differenial gear in the form of two interlocked rows - wave and planetary - eccentric increases the load capacity and reduces the wave radar, distinguishing me in that, in order to increase the load capacity and reduce the dimensions, the other row is planetary,, '' the central gear of which is rigidly connected to the flexible wheel of the wave series and installed in the housing with the possibility of rotation relative to the latter, and the other gear is mounted eccentrically relative to the transmission axis, It is connected with the second half-axis and has protrusions on the end surface, and reciprocal nests are made in the housing for placement of corresponding protrusions in them. 2. Transmission by π. I, characterized in that it is supplied. on an unbalanced sleeve mounted on both axles with the possibility of rotation relative to one of them and Fi. & 2 Fm.5