SU889956A1

SU889956A1 - Safety device

Info

Publication number: SU889956A1
Application number: SU802879099A
Authority: SU
Inventors: Илля Мойсеевич Гершберг; Генрих Соломонович Звегильский; Михаил Мойсеевич Качур; Рафаил Беньяминович Хасин
Original assignee: Одесское специальное конструкторское бюро полиграфического машиностроения
Priority date: 1980-01-30
Filing date: 1980-01-30
Publication date: 1981-12-15

Description

(54) ПРЕДОХРАНИТЕЛЬНОЕ УСТРОЙСТВО(54) SAFETY DEVICE

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Изобретение относитс к машиностроению , и может быть использовано в установках дл обработки фотопленок.The invention relates to mechanical engineering, and can be used in installations for processing photographic films.

Известны предохранительные муфты, содержаш .ие две полумуфты, взаимодействующие друг с другом через подпружиненные шарики 1.5Known safety clutches, containing two coupling halves, interacting with each other through spring balls 1.5.

Однако эти муфты не обеспечивают точности срабатывани .However, these couplings do not provide accuracy.

Наиболее близким к предлагаемому по технической суш.ности и достигаемому результату вл етс предохранительное устройство , содержаш.ее корпус с установленным в нем коническим дифференциалом и фиксируюш,ее устройство 2.Closest to the proposed technical sush.nosti and the achieved result is a safety device, containing its case with a tapered differential installed in it and fixed, its device 2.

Недостатки известного устройства - невозможность регулировки момента срабатывани во врем работы и недостаточна ,5 надежность срабатывани .The disadvantages of the known device are the impossibility of adjusting the response time during operation and insufficient, 5 the reliability of operation.

Цель изобретени - обеспечение надежности срабатывани и регулировки момента срабатывани во врем работы.The purpose of the invention is to ensure reliable operation and adjustment of the moment of operation during operation.

Дл достижени цели предохранительное устройство, содержаш.ее корпус с установ- 20 ленным в нем коническим дифференциалом, фиксируюшее устройство и систему управлени , снабжено обоймой, на которой закреплены оси сателлитов дифференциала и выполнены пазы, фиксирующее устройство выполнено в виде рычагов, на одних концах которых установлены ролики, вход щие в пазы обоймы, а другие размещены на наружной поверхности корпуса, подпружинены с возможностью регулировки, при этом рычаги взаимодействуют с конечным выключателем системы управлени .To achieve the goal, the safety device, containing its case with a conical differential installed in it, the locking device and the control system, is equipped with a holder on which the axes of the satellites of the differential are fixed and grooves are made, the locking device is made in the form of levers, at one end of which the rollers are included in the grooves of the cage, while others are placed on the outer surface of the housing, spring loaded with the possibility of adjustment, while the levers interact with the end switch of the control system and

На фиг. 1 изображено предлагаемое устройство , разрез А-А на фиг. 2; на фиг. 2 - вид Б на фиг. 1.FIG. 1 shows the proposed device, section A-A in FIG. 2; in fig. 2 is a view B in FIG. one.

Claims

A safety device is installed between the electric motor 1, the worm gear pair 2 and 3 and the driven shaft 4. It contains the casing 5 with the differential including a bevel gear 6, / - (connected to the worm gear 3, s; glitches 7 and 8, and also another solar bristle 9 fixed on the driven shaft 4. A holder 10 is placed between the case and the differential. The holder is fixed on the holder for the axles of the satellites 7 and 8 and the grooves are made for engagement with the rollers 11. The latter fix the holder against turning pre It is done by a spring with the help of a spring 12. The rollers 11, which are free to sit on the axes 13, and the levers 14 are a locking device. The housing 5 is made with openings for taking the ends of the levers 14 out of the inner cavity. A spring 12 that tightens the ends of the levers, and Also, the tension adjusting nut 15 is located on the outer surface of the housing where the control system limit switch 16 is mounted. The device operates as follows: When transmitting a torque equal to or less than the limit, engine 1 through a worm gear 2 and 3, as well as diff The gear-gear 6, the satellite 7 and 8, the gear 9 transmits the rotation to the driven shaft 4. The housing 5, the yoke 10 and the rollers 11 of the spring-loaded levers are integral and stationary. With the occurrence of a rotating moment above the limiting sleeve 10, the rollers AND turn, shifting, out of the slots of the sleeve, which leads to the action of the levers 14 on the limit switches 16 of the control circuit and the drive off. With the help of a spring tensioning mechanism, for example, a nut 15, the force of the spring 12 can be changed, thereby regulating the magnitude of the limiting moment at which the safety device should operate. The proposed device allows to adjust the response time during operation and increases the reliability of operation. Claims of the invention A safety device comprising a housing with a tapered differential installed therein, a locking device and a control system, characterized in that, in order to ensure reliable operation and to adjust the operation moment during operation, it is provided with a holder on which the axles of the differential satellites are fixed and made grooves. the locking device is made in the form of levers, at one end of which there are rollers included in the grooves of the yoke, while others are placed on the outer surface of the housing, spring-loaded with the possibility of adjustment, while the levers interact with the limit switch of the control system. Sources of information taken into account during the examination 1. V. Polk, I. Barbash. D. Couplings. L., “Mechanical Engineering, 1973, p. 278, fig. 198.

2. Kozhevnikov S.N. and others. Mechanisms. M., “Mechanical Engineering, 1965, p. 494-495.