SU1395879A1

SU1395879A1 - Lever-link rectilinear-guiding mechanism

Info

Publication number: SU1395879A1
Application number: SU864072071A
Authority: SU
Inventors: Умирбек Арисланович Джолдасбеков; Урал Туткабаевич Абдрахимов; Жумадил Жанабаевич Байгунчеков; Бейбит Бейсенгазиевич Тайжанов; Скандарбек Арисланович Джолдасбеков
Original assignee: Казахский государственный университет им.С.М.Кирова; Джамбулский гидромелиоративно-строительный институт
Priority date: 1986-05-26
Filing date: 1986-05-26
Publication date: 1988-05-15

Abstract

Изобретение относитс к но-рычажным направл ющим механизмам, в частности в строительных, грузоподъемных и сельскохоз йственных машинах. Цель изобретени - увеличение длины пр молинейного участка.траектории движени рабочего органа. Возвратно- поступательное движение ползуна 3 через коромысла 4 и 6 и ведущий шатун 7 преобразуетс в сложное движение ведомого шатуна 5. При заданных соотношени х рассто ний между шарни- рами и в заданном интервале движений ползуна 3 точка S шатуна 5 перемещаетс по пр молинейной траектории, длина которой соизмерима с длиной шатуна 5 . 1 ил. с 9 (ЛThe invention relates to new-lever guiding mechanisms, in particular in building, lifting and agricultural machines. The purpose of the invention is to increase the length of the linear portion of the working body movement. The reciprocating movement of the slider 3 through the rocker arms 4 and 6 and the connecting rod 7 is converted into a complex movement of the driven rod 5. With the given distance ratios between the hinges and in the specified interval of movement of the slider 3, the point S of the connecting rod 5 moves along a linear trajectory, the length of which is commensurate with the length of the connecting rod 5. 1 il. from 9 (L

Description

уat

вat

СлдSld

со елcoke

0000

Изобретение относитс к машиностроению , а именно к шарнирно-рычаж- ным направл ющим механизмам, и может найти применение в строительных, гру- зоподъемньзх и сельскохоз йственных машинах оThe invention relates to mechanical engineering, namely, to pivot-lever guide mechanisms, and can be used in construction, load-lifting and agricultural machines.

Цель изобретени - увеличение длины пр молинейного участка траектории движени рабочего органа.The purpose of the invention is to increase the length of the rectilinear portion of the movement path of the working member.

На чертеже показана кинематическа схема механизма.The drawing shows a kinematic diagram of the mechanism.

Механизм содержит основание 1 с выполненной в нем пр молинейной направл ющей 2, установленный в направл ющей 2 ползун 3, ведущее коромысло в виде треугольного рычага 4, св занное шарниром А с ползуном 3, шарниром В - с ведомым шатуном 5 и шарниром Е - с ведомым коромыслом 6, вы полненным также в виде треугольного рычага. Шарниром F ведомое коромысло 6 св зано с основанием 1, а шарниром D с одним концом ведущего шатуна 7, который другим концом через шарнир С св зан с ведомым шатуном 5. Рассто ни между, шарнирами св заны между собой следующими соотношени ми: EF The mechanism includes a base 1 with a rectilinear guide 2 made in it, mounted in guide 2 of the slider 3, a leading rocker in the form of a triangular lever 4, connected by a hinge A with a sliding block 3, by a hinge B - with a driven connecting rod 5 and hinge E - with driven by a rocker 6, completed also in the form of a triangular lever. The hinge F is the driven rocker 6 connected to the base 1, and the hinge D to one end of the connecting rod 7 which is connected to the other end through the hinge C to the driven connecting rod 5. The distances between the hinges are related to each other by the following relations: EF

L, ;L;

АЕ Lj, 1,OL4 I BE ,AE Lj, 1, OL4 I BE,

.,06L, ; AB L4 2,07L, ; DF . Lj - 0, PE l 0,371.,; CD L « ОрвЭЬ,; BC Lg 0,3.1L,; BS L 2,81Ь,и CS L 3,05Lf .., 06L,; AB L4 2.07L,; Df. Lj - 0, PE l 0.371.,; CD L “OrvE ;; BC Lg 0,3.1L ,; BS L 2.81b, and CS L 3.05Lf.

Механизм работает следующим образом .The mechanism works as follows.

Возвратно-поступательное движение ползуна 3 через коромысла 4 и 6 и ведущий шатун 7 преобразуетс в сложное движение ведомого шатуна 5. При казанных соотношени х рассто ний между шарнирами точка S шатуна 5 в определенном интервале движений пол зуна 3 перемещаетс по пр молинейной траектории, длина которой соизмерима с длиной шатуна 5.The reciprocating movement of the slider 3 through the rocker arms 4 and 6 and the connecting rod 7 is converted into a complex movement of the driven connecting rod 5. With the distance shown between the hinges, the point S of the connecting rod 5 in a certain range of movement of the polar 3 moves along a straight linear path, Commensurate with the length of the connecting rod 5.

Claims

Invention Formula

A pivot-lever guideline-guide mechanism comprising a base c; a linear guide, 50 a slider mounted therein, leading a box in the form of a triangular lever, one of the vertices of the pivotally connected to the slider, and a slave beam, pivotally connected to the base and, with the other, the 55th apex of the leading beam, in order to increase the length of the straight section

five

0

five

0

five

0

five

0 5 0, 74 LO 0,89 L ,, 2.81 L ,,

The trajectory, the driven rocker is made in the form of a triangular lever, at the two vertices of which there are hinges connecting it with the base and with the leading rocker, and the mechanism is equipped with a leading and a driven 1patun, with one End hinged to each other, with the other end connecting the pivot is connected to the third peak of the driven rocker, the known connecting rod is pivotally connected to the third peak of the leading rocker, and the distance between the pivots is determined by the relations

BD 1, L 1.01, Lj 1.06 L, L 2.07 L, Lf L 0.37 L,, LT Lg 0.31 L, L, L, o 3.05 L,,

where L, is the distance between the hinges connecting the driven rocker to the base and the leading rocker (dpina driven rocker);

L is the distance between the hinges, which connects the driving shaft with the slider and the driven beam;

L is the distance between the hinges connecting the leading rocker to the driven rocker and the driven connecting rod; L4 — distance between hinges connecting the lead rocker to the slider and the driven rod (the length of the leading roller);

Lg is the distance between the hinges connecting the driven rocker to the base and the connecting rod;

Lg is the distance between the hinges connecting the driven rocker to the driving beam and the connecting rod; L is the distance between the hinges connecting the connecting rod to the driven rod and the driven beam (the length of the connecting rod);

LO is the distance between the hinges, the coupling and the driven rod with the leading beam and the connecting rod; C is the distance between the joint

connecting a leading rocker with a driven connecting rod, and a point of the driven connecting rod making a linear motion;

CR is the distance between the hinge connecting the driving and driven connecting rods and the point of the driven connecting rod making a straight-line motion (the length of the driving connecting rod).