SU1458310A1

SU1458310A1 - Rope-and-pulley system

Info

Publication number: SU1458310A1
Application number: SU874228101A
Authority: SU
Inventors: Анатолий Владимирович Аверьянов; Андрей Вениаминович Мехренцев
Original assignee: Уральский лесотехнический институт им.Ленинского комсомола
Priority date: 1987-02-09
Filing date: 1987-02-09
Publication date: 1989-02-15

Abstract

Изобретение относитс к канато .блочным системам дл возвратно-посту петельного привода рабочего органа, в частности каретки устройства дл обрезки сучьев. Целью изобретени вл етс повышение эффективности путем изменени т гового усили в зависимости от внешнего сопротивлени . Концы рамы снабжены блоками 13 и 14 и до- полнитель ньии блоками 15 и 16. Каретка 7 при помощи канатов 17 и 18 .соединена с блоками 19 и 20. Через блоки 13, 19 и 15 проходит канат рабочего хода.21, а через блоки 14, 20 и 16 - канат холостого хода 22. Концы обоих канатов закреплены на барабанах 8 и 9. Муфта 10 снабжена механизмом управлени . Когда усилие протаскивани становитс равным силе сопротивлени резанию, срабатывает рычаг механизма управлени , передвига муфту 10 по шлицам вала. Скорость протаскивани в это врем ум.еньшаетс , а усилие протаскивани соответственно возрастает в два раза. I з.п. ф-лы, 2 ил. о 9 слThe invention relates to rope-block systems for reciprocating a stitch drive of a working member, in particular a carriage of a branch trimmer. The aim of the invention is to increase efficiency by varying pulling force depending on external resistance. The frame ends are equipped with blocks 13 and 14 and an additional unit with blocks 15 and 16. The carriage 7 is connected with blocks 19 and 20 with ropes 17 and 18. The working stroke passes through blocks 13, 19 and 15, and 14, 20, and 16 — an idling cable 22. The ends of both ropes are attached to the drums 8 and 9. The clutch 10 is provided with a control mechanism. When the drag force becomes equal to the resistance to cutting, the lever of the control mechanism is actuated, moving the clutch 10 along the shaft splines. The dragging speed at this time has diminished, and the dragging force is correspondingly doubled. I zp f-ly, 2 ill. about 9 cl

Description

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Составитель to. Тазов Редактор Т. Лазоренко Техред А. КравчукКорректор С. ПатрушеваCompiler to. Tazov Editor T. Lazorenko Tehred A. Kravchuk Corrector S. Patrushev

Заказ 318/25Order 318/25

Тираж 625Circulation 625

BHroimi Государственного ког-мтета по изобретени м и открыти м при ГКНТ СССР 113035, Москва, Ж-35, Раушска наб., д. А/5BHroimi of the State Committee on Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., A / 5

Производственно-полиграфическое предпри тие, г. Ужгород, ул. Проектна , 4Production and printing company, Uzhgorod, st. Project, 4

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Claims

Claim

1. A rope-block system, including a frame with longitudinal guides and blocks at the ends, a winch drum, working and idle ropes fixed at one end to the drum, and each interacting with one of the blocks and the carriage, characterized in that, in order to increase efficiency by changing the pulling force depending on the external resistance perceived by the carriage, it is equipped with an additional drum located coaxially to the drum with a coupling mounted on its shaft, equipped with a control mechanism, half-couplings and mounted on a drum and a frame, an additional block at each end of the frame and two blocks for ropes on the carriage, each of the ropes stocked in a pair of blocks at one end of the frame and secured with its free end on the additional drum.

2. The system · πο π. 1, they are distinguished by the fact that, for the purpose of automation, the control mechanism is equipped with an executive body connected by a control line with a sensor installed in the block support.