SU787496A1

SU787496A1 - Roller gin

Info

Publication number: SU787496A1
Application number: SU782581889A
Authority: SU
Inventors: Ростислав Васильевич Корабельников; Георгий Иванович Мирошниченко; Александр Александрович Медведев; Тулкун Алиевич Нормухамедов; Владимир Моисеевич Покрас
Original assignee: Ташкентский Институт Текстильной И Легкой Промышленности
Priority date: 1978-02-24
Filing date: 1978-02-24
Publication date: 1980-12-15

Description

(54) ВАЛИЧНЫЙ ДЖИН(54) MAJOR JIN

1one

Изобретение относитс к текстильной промышленности, в частности, к конструкции наличного -джина, служащего дл отделени волокна от сем н хлопка-сырца.The invention relates to the textile industry, in particular, to the design of a cash gen, which serves to separate the fiber from the seeds of raw cotton.

Известен наличный джин, содержащий рабочий валик, отбойный орган и прижимной нож с эксцентриковым вибратором 1. Производительность такого валичного джина увеличиваетс с ростом частоты колебаний ножа.Known cash gin, containing a working roller, a baffle body and a clamping knife with an eccentric vibrator 1. The productivity of such a roller gin increases with increasing frequency of oscillation of the knife.

Недостатком известного валичного джина вл етс низка надежность при увеличении частоты колебаний ножа из-за выхода из стро подшипников качени вибратора, так как больша периодическа нагрузка на нож при его прижатии к рабочему валику определ ет значительные переменные нагрузки на быстро вращающиес подшипники качени эксцентрикового вибратора.A disadvantage of the known roller gin is low reliability with an increase in the oscillation frequency of the knife due to the failure of the vibrator rolling bearings, since a large intermittent load on the knife when pressed against the working roller determines significant variable loads on the rapidly rotating rolling bearings of the eccentric vibrator.

Цель изобретени - увеличение производительности валичного джина за счет повышени частоты вибрации ножа.The purpose of the invention is to increase the productivity of a shaft gin by increasing the frequency of the knife vibration.

Указанна цель достигаетс тем, что джин снабжен шарнирной двухповодковой группой спр мл ющихс рычагов, посредством которой нож св зан с вибратором. Применение двухповодковой группы рычагов.This goal is achieved by the fact that the gin is equipped with a hinged two-position group of lever levers, by means of which the knife is connected to a vibrator. The use of dvuhpovodkovoy groups of levers.

дважды спр мл ющихс за один оборот эксцентрикового вала, увеличивает частоту колебани ножа вдвое по сравнений с частотой вращени эксцентрикового вала. Кроме того, это позвол ет перенести основнуюdoubling the eccentric shaft twice per revolution, it doubles the frequency of oscillation of the knife compared with the frequency of rotation of the eccentric shaft. In addition, it allows you to transfer the main

5 нагрузку на низшие кинематические пары (подшипники скольжени ), работающие при низких относительных скорост х скольжени и значительно разгружает быстроходные подшипники качени эксцентрикового вала. В результате этого резко увеличиваетс 5 load on the lower kinematic pairs (sliding bearings) operating at low relative sliding speeds and significantly relieves high-speed rolling bearings of the eccentric shaft. As a result, it dramatically increases

10 ресурс долговечности работы механизма ножа валичного джина.10 resource durability of the mechanism of the knife roller gin.

На фиг. 1 схематично изображен предлагаемый валичный джин, поперечный разрез; на фиг. 2 - схема механизма привода ножа в крайних и среднем спр мленном положени х.FIG. 1 schematically shows the proposed roller gin, a transverse section; in fig. 2 is a diagram of the knife drive mechanism at the extreme and average spraying positions.

Валичный джин содержит рабочий валик 1, прижимной нож 2 и отбойный орган 3. Нож установлен на деке 4 и закреплен прижимным брусом 5. Дека 4 при помощиThe roller gin contains a work roller 1, a pressure knife 2 and a fender body 3. The knife is mounted on deck 4 and secured with a pressure bar 5. Deca 4 using

Claims

20 sliding bearings 6 are mounted on a fixed axis 7. A rocker arm 9 is fixed on the deck using bolts 8, which through a joint 10 enters a kinematic pair with a power lever 11. The lever 11 is connected to another power lever 13 mounted on a fixed axis by means of a hinge 12 14. The power lever 11 by means of a hinge 15 is connected to the connecting rod 16, which is mounted on the eccentric 18 of the shaft 19 through the rolling bearing 17. The shaft 19 with help and the support 20 is fixed on the fixed beam 21. When the working roller 1 turns, the raw cotton fiber beaten for edge the knife 2 pressed against the surface of the roller 1. A baffle body acts on the seeds of the volatiles whose fibers are clamped by the knife 3. The knife 2 oscillates around the axis 7. The oscillatory movements of the knife communicate from the eccentric shaft 19 through the eccentric 18, connecting rod 16, levers 13 , 12 and 9. For 70-80% of the oscillation period of the knife, it is in direct contact with the surface of the work roller 1. At this time, the pressure between the knife and the roller changes from zero to maximum and again to zero, providing the variability of the friction field, and maximum ie the pressure is 1.5-2 times higher than the pressure in valichnyh ginning with a stationary knife. Due to this, the slippage of the roller 1 through the fiber sucked in behind the knife 2 is reduced, the conditions for ginning are improved, and the gin's productivity increases. The maximum pressing of the knife to the work roller is carried out with the help of power levers I and 13, which consists of ush, their two-guide group, which work by turning on the transmission. The force is from the eccentric shaft 19. In FIG. Figure 2 shows the extreme and average direct positions of these levers. Since the average straightforward position of the levers 11 and 13 is repeated twice in one revolution of the eccentric shaft 19, respectively, two oscillations of the knife per rotation of the shaft 19 occur. The possibility of increasing the oscillation frequency of the knife increases the productivity of the shaft gin. In addition, the use of rectifying levers in the design of the knife drive makes it possible to obtain a large gain in strength and to divide the kinematic scheme into a power unit and a high-speed one. The power part includes the levers 9, 11 and 13, which are connected by hinges. Low relative sliding speeds and large transmitted forces allow the use of sliding bearings as kinematic pairs of the power part of the circuit. The high-speed part of the drive, the eccentric shaft, due to the use of converging levers 11 and 13 in the drive, is significantly relieved, which improves the conditions for the operation of rolling bearings. Claims: Roller gin containing a working roller, a baffle and a presser knife associated with an eccentric vibrator, characterized in that, in order to increase productivity by increasing the frequency of the blade vibration, it is equipped with a hinge two-stage lever that allows the knife connected to the vibrator. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 509668, cl. D 01 1/06, 1973.