SU977886A1 - Pulse-type variable speed drive - Google Patents

Description

(5) PULSE SPEED VARIATOR

one . .

The invention relates to drives with infinitely variable speed control, in particular to drives of machines processing polymeric materials.

Known inertial ... impulse variate |% |, speeds that contain a differential mechanism, one of the central wheels of which is connected to the input shaft, the other one with output, a free wheel mechanism installed between the driven shaft and the housing, a pulser, and an inertial link made in the form of a flywheel and kinematically connected with the differential mechanism l.

The closest to the proposed technical "essence" is a pulsed speed variator containing a drive and driven shaft, a differential mechanism, one of the central wheels of which is connected with the driven shaft, a pulser in the form of a double universal joint and interacting The latter is a forced speed control mechanism. The driving and driven members of the double universal joint are connected respectively to the driving shaft and carrier of the differential mechanism. The second central wheel is associated with a flywheel.

The disadvantages of the variator are

10 high dynamic loads on links of double universal joint and relatively high metal intensity per unit of transmitted power due to the presence of m yellow

15 flywheel.

The purpose of the invention is to increase the carrying capacity, reduce the size and weight of the variator.

20

The goal is achieved by the fact that in a pulsed speed variator containing a driving and driven shaft there is a differential mechanism. one of the central wheels of which. associated with the driven shaft, a pulser in the form of a double universal joint and a mechanism for forcing speed and speed that interacts with one of the links of the latter, the driving and driven members of the double universal joint are rigidly connected with each other and rigidly with the second central wheel of the differential mechanism, and drove - with the lead in-al. FIG. 1 shows the pulse speed variator; in fig. 2 is a section A-A in FIG. one; in fig. 3 section BB in FIG. 1. A pulsating variator sco (s), the drive shaft, is rigidly connected to the carrier 2 of the differential mechanism, on whose axes the satellites 3 are mounted, which engage with the central wheels 4 and 5. The central wheel 5 is rigidly connected with the bis coupling half leading link 7 double universal joint. {SHOWER) Lead link 7 W through inner B, intermediate 9 and outer 10 ring is connected with its BeAOf4biM link with coupling half 11. Additional link between the lead link 7 and the driven link

The n-half coupling 11 is carried out through the package of the Belleville springs 12.

The intermediate ring 9 through the hinge support 13 is kinematically connected with the screw pair 1 and 15, the nut And which is hingedly mounted in the rotary support 16 of the Forced speed control mechanism. The horizontal fixation of the hinge support 17 is realized by guides that are rigidly fixed to the variator housing. The Central wheel 4 is installed on the driven shaft 18.

Pulse speed variator works as follows.

The rotation from the drive shaft 1 through the carrier and the satellite 3 is transmitted to the central wheels t and 5 of the differential mechanism. From the central wheel 5, through the driving link 7, an intermediate shower 9, and an outer 10 ring, the movement is transmitted

a differential mechanism, one of the central wheels of which is connected with the driven shaft, a pulsitator in the form of a double universal joint and a mechanism for forcibly adjusting the speed of movement, interacting with one of the links of the latter, so that. that, in order to increase the carrying capacity, reduce the size and weight of the variator, the driving and driven members of the double universal joint are elastically connected to each other and rigidly to the second central wheel of the differential mechanism, and the carrier to the drive shaft.

Sources of “information taken into account during the examination 1. USSR author's certificate No., class F 16 N 31/00, 1970.

2. Copyright certificate W 7tlOII, cl. F 16 H-31/00, t9j6 (prototype). the half coupling 11, and from the central shaft f to the driven shaft 18. The ratio of the angular velocities of the driving link 7 and the link of the half coupling 11 represents a variable value with a period of 180. The springs installed between the couplings 6 and 11 are subject to periodic compression and stretching, and therefore , central ring: about 5 is affected by an alternating moment. The angular velocity of the driven shaft 18 is controlled by rotating the inner intermediate wheel 9 by means of a screw pair 1 and t5 by rotating the handle 19. The scoop springs have an increased rigidity and carrying capacity, which makes it possible to manufacture variators for transmitting considerable power with relatively small dimensions. The load on the elements of the shower is reduced due to the elastic coupling of the half-coupling b and the link-coupling 11, which increases the operational reliability of the variators as a whole. Formula of the invention. Pulse speed variation, containing Befiyv t (i and driven shafts. // jr // / yW / 5

fUZ.Z. f3 /// y

Fig.Z

Claims (1)

SUMMARY OF THE INVENTION A pulsed speed variator comprising a driving and driven differential mechanism, the central wheels of which is driven by a shaft, a pulser of a double universal joint, and a forced speed control mechanism that interacts with one of the links of the latter, so that with the aim of increasing the bearing capacity, reducing the dimensions and weight of the variator, the driving and driven links of the double universal joint are elastically connected and rigidly connected to the second central wheel IU ₄₅ th mechanism of, and the carrier -'s drive shaft.