SU954677A1

SU954677A1 - Pulsed variable-speed drive

Info

Publication number: SU954677A1
Application number: SU813245971A
Authority: SU
Inventors: Вадим Сергеевич Одинец; Александр Павлович Чистяков; Евгений Яковлевич Антонюк
Original assignee: Украинский Научно-Исследовательский И Проектный Институт По Разработке Машин Для Переработки Пластмасс
Priority date: 1981-02-12
Filing date: 1981-02-12
Publication date: 1982-08-30

Description

1one

Изобретение относитс к общему машиностроению , а именно к приводам.с бесступенчатым регулированием скорости, например к приводам машин и агрегатов, перерабатывающих полимерные материалы,; к приводам металлорежущих станков и камнерезательных машин и т.п.The invention relates to general engineering, in particular to drives with stepless speed control, for example, to drives of machines and units processing polymeric materials; to drives of metal-cutting machine tools and stone-cutting machines, etc.

Известен импульсный вариатор скорости , содержащий ведущий ведомый валы, двухступенчатую планетарную передачу, в которой центральное звено второй ступени соединено неподвижно с ведомым валом, а первой - с корпусом, валы сателлитов первой и Второй ступеней пере- jj дачи соединены двойными универсальными шарнирами, водило второй ступени соединено неподвижно с ведущим валом, а первой - с возможностью винтового движени относительно последнего, и ме- 20 ханивм регулировани , кинематически св занный с водилом первой ступени .A pulsed speed variator containing a leading driven shaft, a two-stage planetary gear, in which the central link of the second stage is fixedly connected with the driven shaft, and the first with the housing, the shaft of the first and second steps of the first jj of the summer house, are connected. fixedly connected with the drive shaft, and the first with the possibility of screw movement relative to the latter, and an adjustment mechanism, kinematically connected with the carrier of the first stage.

Вариатор имеет сравнительно низкую долговечность, обусловленную наличиемThe variator has a relatively low durability due to the presence

в нем недолговечных элементов - механизмов свободного хода.there are short-lived elements in it — free-wheeling mechanisms.

Наиболее близким по технической сущности к предлагаемому вл етс импульсный вариатор скорости, содержащий ведущий и ведомый валы, двухступенчатую планетарную передачу, центральное колесо второй ступени которой соединено с ведомым валом, сателлиты первой ступени соединены ос ми с сателлитами второй ступени, зубчатые венцы последних вьшолнены в виде секторов, которые последовательно сдвинуты по фазе один относительно другого, водило, установленное с возможностью смещени в осевом направлегши , и механизм регулировани ,кинематически св занный с водилом 2.The closest in technical essence to the present invention is a pulsed speed variator containing a drive and driven shaft, a two-stage planetary gear, the central wheel of the second stage is connected to the driven shaft, the first stage satellites are connected by axes with the second stage satellites, the toothed rims of the latter are in the form sectors that are successively out of phase relative to each other, the carrier mounted with the possibility of displacement in the axial direction, and the control mechanism, kinematich Ecology associated with the carrier 2.

Claims

The axes of the first and second stages of the satellites in this variator form a double universal shield (DOSH), which makes the design of the variator relatively complicated and cumbersome due to the large number of kinematic pairs. In addition, with an increase in the angle between the axes of the shower elements, additional loss of power is omitted. The zero of the invention is the improved construction of the variator and the increase of its capacity. The goal is achieved by the fact that in a pulse variator containing a drive and driven shaft, a two-stage planetary gear, the central wheel of the Second stage of which is connected to the driven shaft, the first stage satellites are connected by axles to the second stage satellite, the gear rims of the latter are in the form of sectors, which after being positively out of phase with each other, the carrier, installed with the possibility of displacement in the axial direction, and the adjustment mechanism, kinematically connected with the carrier, the satellites and the first wheel of the first stage is made of non-circular and last connected with the drive shaft, and the satellites of the second stage are connected to the axles by self-braking screw pairs. Fig. 1 shows the kinematic scheme of the pulse speed variator; in fig. 2 - the relative position of the gear sectors of the second-stage satellites. The variator contains a two-stage planetary gear, in which the first-stage satellite 1 is engaged with the central wheel 2, and the second-stage satellite 3 has a central wheel 4. The second wheel 4 of the Second stage is rigidly connected to the driven shaft 5, and the central wheel 2 first stage - with drive shaft 6. Satellites of the first stage are connected to satellites 3 of the second stage axes 7 and the satellite 3 of the second stage are connected to Axis 7 by non-braking pairs 8 and installed in carrier 9, which by means of threaded connection 10 with bristles And has the possibility of axial movement. The gear 11 is engaged with the conical bristles 12. The satellites 1 and the central wheel 2 of the first stage are not round-shaped, and the satellites 3 B1 of the gear have toothed crowns in the form of sectors that are successively out of phase relative to each other. The variator works as follows. Rotational motion of the drive shaft through the tangential wheel 2 of the first stage is transmitted to satellites 1 and 3. Non-circular satellites 1, rolling in a non-circular central wheel 2, receive an uneven rotation, which through axes 7 is transmitted to satellites 3. The satellites 3 sequentially pass this movement in the form of rotational pulses of one direction of the central wheel 4 of the second stage, and hence the driven shaft 5 of the variator, which will rotate with a certain angular velocity. The speed of rotation of the shaft 5 is adjusted along the way by rotating the pinion 12. Rotating the pinion 11 by means of the pinion 12, is moved by means of the threaded joint 10 (together with the satellites H) drove 9 in the axial direction. The axial movement of the satellites 3 causes a change in the angle between the axes of symmetry of the sectors of the satellites 3 and non-circular satellites 1, which leads to a change in the rotational impulses transmitted to wheel 4, as a result of which the angular rotational speed of the variator 5 connected to jfflM changes. The speed variator has a simple construction, since there are no transforming mechanisms in it, the role of which is performed by the gear drive itself, and also has a high efficiency. Claims of the invention Pulse speed variator, containing leading 14 and driven shafts, two-stage planetary gear, the central wheel of the second stage of which is connected to the driven shaft, the first stage satellites are connected by axles with the second stage satellites, the gear rims of the latter are made in the form of sectors that are sequentially shifted in phase one relative to another, the carrier, s installed with the possibility of displacement in the axial direction, and an adjustment mechanism, kinematically associated with the carrier, characterized in that order to simplify the design and efficiency of the Enhance variator satellites and central wheel of the first stage are made non-circular, and the latter is associated with the drive shaft, and the satellites of the second stage are connected to the axles nesamotormoz schimis screw pairs. . Sources of information taken into account during the examination 1. USSR author's certificate NS 5O2163, cl. F 16 H 29/16, 1974.

2. USSR author's certificate number 540091, cl. F 16 H 29/16, 1975 (prototype).

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