SU937854A1

SU937854A1 - Pulse-type variable speed drive

Info

Publication number: SU937854A1
Application number: SU802902091A
Authority: SU
Inventors: Абрам Ефроимович Кропп; Андрей Витальевич Шапошников; Александр Вадимович Дубленников; Александр Степанович Максимов; Анатолий Юрьевич Рашрагович; Михаил Игоревич Касаткин
Original assignee: Ярославский политехнический институт
Priority date: 1980-04-01
Filing date: 1980-04-01
Publication date: 1982-06-23

Description

(5) ВАРИАТОР ИМПУЛЬСНЫЙ(5) PULSE VARIATOR

Изобретение относитс к машиностроению и может быть использовано в передачах с бесступенчатым регулированием скорости.The invention relates to mechanical engineering and can be used in gears with stepless speed control.

Известен импульсный вариатор, содержащий ведущий вал с задающим закон движени элементом, ведомый вал с установленным на нем механизмом свободного хода ведущий элемент которого выполнен в виде упругого ,Q элемента, а ведомый - в виде шкива, качающийс толкатель, св занный одним концом с хомутом, а другим с задающим закон движени элементом и регулирующий механизм 1 }. . ,5A pulsed variator is known, which contains a drive shaft with a driving element, a driven shaft with a free wheeling mechanism installed on it, the driving element of which is made in the form of an elastic element, Q, and the follower is in the form of a pulley, swinging the pusher connected at one end and the other with the element setting the law of motion and the regulating mechanism 1}. . ,five

Однако известный импульсный вариатор недостаточно надежен в работе.However, the known pulse variator is not reliable enough in operation.

Наиболее близким к изобретению по технической сущности и достигаемому результату вл етс импульсный 20 вариатор, содержащий корпус, размещенные в нем ведуи1ий вал с задающим закон движени элементом, ведомый вал с установленным на нем механизмом свободного хода, ведущий элемент которого выполнен в виде хомута, а ведомый - в виде шкива, качашцийс толкатель, одним концом шарнирно св занный с хомутом посредством двух пальцев, а другим взаимодействующий с задающим закон движени элементон, пружину, св занную одним концом с корпусом и регулирующий механизм. Другой конец пружины св зан с толкателем С2.The closest to the invention in technical essence and the achieved result is a pulsed 20 variator, comprising a housing, a lead shaft placed in it with a driving element, a driven shaft with a free wheeling mechanism installed on it, the driving element of which is in the form of a yoke - in the form of a pulley, a pusher with a pusher, one end of which is pivotally connected with the collar by means of two fingers, and the other interacting with the law setting element of the element, a spring connected at one end with the housing and iruyuschy mechanism. The other end of the spring is connected to the push rod C2.

Недостатком известного вариатора вл етс запаздывание включени механизма свободного хода из-за того, что пружина взаимодействует с толка телем, св занным пружиной сжати с хомутом, что в результате ведет к снижению надежности вариатора.A disadvantage of the known variator is the delay in switching on the freewheel mechanism due to the fact that the spring interacts with the push connected by the compression spring with the clamp, which results in a decrease in the reliability of the variator.

Цель изобретени - повышение надежности .The purpose of the invention is to increase reliability.

Claims

The goal is achieved by the fact that in a pulse variator containing a housing, a drive shaft with a driving element defining the movement, a driven shaft with a free wheeling mechanism installed on it, the driving element of which is designed as a yoke, a pusher, one end of which is pivotally connected to the collar by means of two fingers, and the other interacting with the element setting the law of motion, a spring connected at one end to the body, and a regulating mechanism; the other end of the spring is connected to x Muth. The drawing shows the pulse variator. The variator comprises a housing 1, the drive and driven shafts 2 and 3 placed in it. An eccentric k is mounted on the drive shaft, which is an element that defines the law of motion. The free-running mechanism is installed on the shaft. The driving element of the free wheeling mechanism is made in the form of an elastic clamp 5a and is driven by a pulley 6. The collar 5 is hinged with fingers 7 connected to one end of a swinging pusher 8, which with its other end rests on eccentric k. The force closure between the eccentric and the swinging pusher 8 is carried out by a spring 9 fixed at one end to the body 1, and the other to an elastic strap 5. In case 1, the cam 10 is freely mounted, which is an element of the regulating mechanism. The variator works as follows. The drive shaft 2 is driven in constant rotation in either direction. An eccentric drive pusher B, and, therefore, collar 5, which together with pulley 6, converts the oscillatory movement of the pusher 8 into unidirectional rotational movement of the driven shaft 3, rotates the hub 5 and the pusher 8 connected to it in the direction clockwise, provides constant contact of the working surfaces of the pusher 8 and the eccentric k, and also serves to create an initial friction force in the contact of the yoke and pulley and to select gaps in the hinges, thereby preparing the mechanism one move to jamming. Adjusting the speed of rotation of the driven shaft 3 is carried out by turning the cam 10, which limits the swing angle of the pusher 8. Thus, the proposed pulse variator is simpler in design and has greater reliability in operation. Claims of the invention A pulsed variator, comprising a housing, a drive shaft with a driving element, a driven shaft with a free wheeling mechanism installed on it, the driving element of which is designed as a yoke, and the driven shaft - as a pulley, rocking the plunger, alone. the end is pivotally connected to the collar by means of two fingers, and the other is interacting with the driving element, a spring connected at one end to the body, and a regulating mechanism, characterized in that, in order to increase reliability, the other end of the spring is associated with the collar. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 246233, cl. Mb N 29/02, 1968.

2. USSR author's certificate No. 6E7771, cl. F 16 H 29 / Oi4, 1979 (prototype).