SU950646A1

SU950646A1 - Mine hoist speed control apparatus

Info

Publication number: SU950646A1
Application number: SU802991592A
Authority: SU
Inventors: Игорь Петрович Ковалевский; Юрий Иванович Дронников; Александр Григорьевич Сердюк
Original assignee: Производственное Объединение "Ново-Краматорский Машиностроительный Завод"
Priority date: 1980-10-13
Filing date: 1980-10-13
Publication date: 1982-08-15

Description

Изобретение относитс к подъемнотранспортному машиностроению, в I частности к устройствам дл регулировани скорости шахтной подъемной машины.The invention relates to lifting transport machinery, in particular, to devices for controlling the speed of a mine lifting machine.

Известно устройство дл регулировани скорости шахтной подъемной машины , содержащее исполнительный элемент , кинематически св занный посредством рычага, оснащенного роликом,с профилированным кулачком, установленным на валу, св занном посредством зубчатой передачи с выходным валом подъемной машины l.A device for controlling the speed of a shaft hoisting machine is known, comprising an actuating element kinematically connected by means of a lever equipped with a roller, with a profiled cam mounted on a shaft connected by means of a gear transmission to the output shaft of the lifting machine l.

Однако в таком задатчике радиус профил с уменьшением скорости уменьшаетс , что приводит к снижению точности срабатывани задатчика скорости ..However, in such a setting unit, the profile radius decreases with decreasing speed, which leads to a decrease in the accuracy of the setting of the speed setting unit.

Цель изобретени - повышение точности регулировани .The purpose of the invention is to improve the accuracy of regulation.

Дл достижени поставленной цели зубчата передача выполнена планетарной , включает сате.ш1иты и центральную шестерню, причем кулачок свободно смонтирован на оси сателлитов, и кинематически св зан через пару зубчатых колес с валом центральной шестерни .To achieve this goal, the cog gear is made planetary, includes satellites and a central gear, with the cam loosely mounted on the axis of the satellites, and kinematically connected through a pair of gears to the shaft of the central gear.

На фиг. 1 изображено устройство, общий вид; на фиг. 2 - кинематическа схема.FIG. 1 shows the device, a general view; in fig. 2 - kinematic scheme.

Устройство дл регулировани скорости содержит кулачок 1, одну половину которого занимает профиль разгона , а другую - профиль замедлени (при изменении направлени вращени они измен ют свое назначение), рычаг The speed control device contains a cam 1, one half of which is occupied by the acceleration profile, and the other by the deceleration profile (as they change the direction of rotation, they change their purpose), the lever

10 2 с роликом 3 и исполнительный элемент 4.10 2 with roller 3 and the actuating element 4.

Кулачок 1 свободно установлен на оси 5 сателлитов 6 и 7 планетарной передачи, состо щей/ помимо назван15 ных, также из центральной шестерни 8, ее вала 9, неподвижного колеса 10 и водила 11. Вал 9 соединен с валом подъемной машины. На валу 9 также закреплено зубчатое колесо 12, а на The cam 1 is freely mounted on the axis 5 of the satellites 6 and 7 of the planetary gear, which consists / in addition to the named, also from the central gear 8, its shaft 9, the fixed wheel 10 and drove 11. The shaft 9 is connected to the shaft of the lifting machine. On the shaft 9 is also fixed gear wheel 12, and

20 диске 1 - зубчатое колесо 13, образующие зубчатую пару.20 disk 1 - the gear wheel 13, forming a gear pair.

Устройство работает следующим образом .The device works as follows.

В начале цикла подъема ролик 3 At the beginning of the lifting cycle roller 3

25 рычага 2 отжат профилем кулачка 1 в крайнее нижнее положение, соответствующее самой малой скорости подъема,25 levers 2 pressed the profile of the Cam 1 in the lowest position corresponding to the lowest lifting speed,

Claims

When the machine accelerates, rotation from its shaft through the shaft 9 is transmitted to the central gear and from it to the satellite 6 and 7. At the same time, the satellite 7, rolling on the fixed wheel 10, reports a circular motion to the carrier 1 of axis 5 and, accordingly, to the center of disk 1. At the same time through the gears 12 and 13 fixed on the shaft 9 and the disk 1, the disk 1 is rotated. The number of teeth of the wheels 12 ti 1.3 is chosen so that the disk 1 performs about half a turn of the relatively fixed system during acceleration. Roller 2 during the acceleration period rolls along the profile of cam 1, setting the required law of motion. During the period of uniform movement, the rim is in its extreme upper position due to the return mechanism of the actuator, which corresponds to the maximum lifting speed. Cam 1 continues to rotate. However, the profiles do not touch the actuator roller 3. At the end of the uniform movement of the hoisting machine, cam 1 approaches the roller 3 of the actuating element, at the moment of the start of deceleration, the profile of cam 1 is in contact with the roller for 1 hour and pushes it down, setting the required law of deceleration. The proposed device improves its accuracy of response when the actual dimensions of the profiles deviate from the theoretical ones during their manufacture and wear. Apparatus of the Invention A device for controlling the speed of a shaft hoisting machine, comprising an actuating element kinematically connected by means of a lever equipped with a roller with a profiled cam mounted on a shaft connected by means of a gear transmission to the output shaft of the lifting machine, characterized in that the accuracy of the adjustment, the gear mentioned above is made planetary, we include the satellites and the center gear, and the cam is freely mounted on the axis of the satellites and kine cally bonded through a pair of gears with the shaft of the central pinion. Sources of information taken into account during the examination 1. USSR author's certificate No. 232489, cl. B 66 B 1/26, 1965 (prototype).