SU973981A1

SU973981A1 - Link mechanism

Info

Publication number: SU973981A1
Application number: SU802962980A
Authority: SU
Inventors: Борис Петрович Семенов
Original assignee: За витель Б. П. Семенов
Priority date: 1980-05-16
Filing date: 1980-05-16
Publication date: 1982-11-15

Description

(5) ШАРНИРНЫЙ МЕХАНИЗМ(5) HINGE MECHANISM

1one

Изобретение относитс к машиностроению и может быть использовано в машинах-автоматах многих отраслей промышленности. . The invention relates to mechanical engineering and can be used in automatic machines in many industries. .

Наиболее близким к изобретению по техническому решению и достигаемому результату вл етс шарнирный ме-ханизм , содержащий стойку, кривошип , в виде рычагов, шарнирно св занный со стойкой, шатун в виде рычага, длина которого равна длине кривошипа и шарнирно св занный с ним, коро мысло , шарнирно св занное с шатуном и стойкой т .The closest to the invention according to the technical solution and the achieved result is a hinge mechanism comprising a strut, a crank in the form of levers, hingedly connected to a stand, a connecting rod in the form of a lever, the length of which is equal to the length of the crank and hingedly connected to it, soap hinged to the connecting rod and the str.

. Недостатком известного механизма вл етс неточность останова коромысла .. A disadvantage of the known mechanism is the inaccuracy of stopping the rocker.

. Цель изобретени - повышение томности останова коромысла.. The purpose of the invention is to increase the languor of the stopping of the yoke.

Указанна цель достигаетс тем, что в шарнирном механизме, содержащем стойку, кривошип, шарнирно св занный со стойкой, шатун, длина которого равна длине кривошипа и шарнирно св занный с ним, коромысло, шарнирно св занное с шатуном и стойкой , кривошип и шатун выполнены в ви де эксцентриков, коромысло - в виде втулки, а механизм снабжен упором с,которым периодически взаимодействует корсмысло.This goal is achieved by the fact that in a hinge mechanism comprising a strut, a crank hingedly connected to a stand, a connecting rod whose length is equal to the length of the crank and a hinge connected to it, a rocker arm hingedly connected to the connecting rod and strut, the crank and the connecting rod are made in de eccentrics, the yoke - in the form of a sleeve, and the mechanism is equipped with a stop with which the spring tool periodically interacts.

На чертеже схематически изображен предлагаемый шарнирный механизм.The drawing schematically shows the proposed hinge mechanism.

10ten

Механизм содержит стойку 1, кривошип , .выполненный в виде эксцентрика 2 и шарнирно св занный со стойкой 1, шатун, длина которого равна длине 5 кривошипа и шарнирно св занный с ним выполненный в виде эксцентрика 3, коромысло , шарнирно св занное с шатуном и стойкой, выполненное в виде втулки k. Механизм снабжен упором 5 The mechanism comprises a strut 1, a crank, made in the form of an eccentric 2 and pivotally connected to the stand 1, a connecting rod whose length is equal to the length 5 of the crank and an articulatedly connected to it in the form of an eccentric 3, the yoke pivotally connected to the connecting rod and the strut made in the form of a sleeve k. The mechanism is equipped with a stop 5

20 с которым периодически взаимодействует втулка .20 with which the sleeve periodically interacts.

Механизм работает следующим образом .The mechanism works as follows.

Claims

S Claims

An articulated mechanism comprising a strut, a crank pivotally connected to the strut, a connecting rod, the length of which is equal to the length of the crank and pivotally connected to it, a rocker arm pivotally connected to the connecting rod strut, characterized in that, in order to increase the accuracy of the rest 15 is a new rocker arm, the crank and connecting rod are made in the form of eccentrics, the rocker arm in the form of a sleeve, and the mechanism is equipped with a stop with which the rocker interacts periodically.

Sources of information taken into account during the examination of '1. Artobolevsky II Mechanisms in modern technology. M., Science, 1970, p. 327, Fig. 544 (prototype).

When the eccentric 2 rotates, the movement is transmitted through the eccentric 3 to the sleeve 4, which is pivotally connected to the stand 1 and the eccentric 3. The axial line connecting the rotation axis of the eccentric 2 and the sleeve 4 is perpendicular to the straight line connecting the rotation axis of the eccentric 2 and the middle of the stop 5, equal to the radius of the sleeve four.

During the coincidence of the axial line connecting the axis of rotation of the sleeve 4 and the center of the eccentric 3, i.e. the length of the rocker arm, with the axial connecting the axis of rotation of the eccentric 2 and the sleeve 4, the latter is pressed against the stop 5 and is in a stationary position during the rotation of the eccentric 2, ’i.e. crank angle 180.

With further rotation of the eccentric 2, the sleeve 4 moves away from the stop 5 and, thus, the swinging movement of the sleeve 4 occurs with a stop in the extreme right position.

The proposed · mechanism provides an accurate stop in the extreme position · ²⁵