SU620400A1

SU620400A1 - Two-speed drive of drawing slide of double-action crank press

Info

Publication number: SU620400A1
Application number: SU772482766A
Authority: SU
Inventors: Игорь Константинович Токарев; Алексей Юрьевич Калинин; Галина Николаевна Крылова
Original assignee: Московский автомеханический институт
Priority date: 1977-05-06
Filing date: 1977-05-06
Publication date: 1978-07-11

Description

(54) ДВУХСКОРОСТНОЙ ПРИВОД ВЫТЯШЮГО ПОЛЗУНА КРИВОШИПНОГО ПРЕССА ДВОЙНОГО ДЕЙСТВИЯ(54) TWO-SPEED ACTUATOR OF THE EXTRACTING CRIME CURVED PRESS DOUBLE ACTION

Изобретение относитс к обработке металлов давлением, а именно к конструкции механических прессов.The invention relates to the processing of metals by pressure, in particular to the design of mechanical presses.

Известен двухскоростной привод выт жного ползуна кривошипного пресса двойного действи , содержащий св зывающие кри вошипный вал с электродвигателем кинематические цепи ускоренного и рабочего ходов , в каждой из которых смонтирована муфта включени l.The two-speed drive of the exhausting slide of a double-acting crank press is known, which contains a kinematic chain of accelerated and working strokes connecting a crank shaft with an electric motor, each of which has an actuator coupling l.

Целью изобретени вл етс повышение долговечности и надежности.The aim of the invention is to increase durability and reliability.

Это достигаетс тем, что привод снабжен установленным с возможностью врашени на кривошипном валу маховиком, жесткой муфтой.сцеплени его с кривошипным валом, а также тормозом маховика .This is achieved by the fact that the drive is equipped with a flywheel mounted on the crank shaft, a rigid coupling with the crank shaft, and a flywheel brake.

На чертеже приведена кинематическа схема привода. Привод содержит электродвигатель 1, св занный ременной передачей с маховиком 2, установленным на валу 3; промежуточный вал 4, передакнций вращение на зубчатые колеса муфты 5 ускоренного хода, муфты 6 рабочего хода The drawing shows a kinematic drive circuit. The drive includes an electric motor 1 associated with a belt drive with a flywheel 2 mounted on a shaft 3; intermediate shaft 4, transfer rotation to the gears of the clutch 5 accelerated stroke, the clutch 6 working stroke

и вал 7, св занный зубчатыми колесами с тормозом 8 и зубчатыми колесами кривошип но-шатунного механизма 9.and a shaft 7 connected by gears with a brake 8 and gears a crank of a no-connecting rod mechanism 9.

На кривошипном валу 10 установлены жестка муфта 11, маховик 12 с моментом инерции, обеспечивающим снижение скорости ведомых звеньев привода и тормоз 13, св занный с маховиком.A rigid coupling 11, a flywheel 12 with a moment of inertia that reduces the speed of the driven units of the drive and a brake 13 connected to the flywheel are mounted on the crank shaft 10.

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Привод работает следующим образом. От электродвигател 1 через ременную передачу вращение пер&дае- с маховику 2, валам 3 и 4. При включении пресса срабатывает муфта 5 и вращение передаетс через вал 7 зубчатым колесам кривошипно-шатунного механизма 9, обус ловлива тем самым быстрое движение ползуна.The drive works as follows. From the electric motor 1 via a belt drive, rotation of the gearbox & flywheel 2, shafts 3 and 4. When the press is turned on, clutch 5 is activated and the rotation is transmitted through the shaft 7 of the gears of the crank mechanism 9, thereby causing the rapid movement of the slide.

Claims

In order to perform a technological operation at the split rotation angle of the crank, the press control system automatically (automatically disconnects the accelerated clutch 5, turns on the actuator clutch 6 and the rigid clutch 11 connecting the flywheel 12 to the crank shaft 1O. .the speed of the driven drive units before aligning with the speed of the leading parts of the working coupling, POET} when clutch 6 is turned on, there is practically no friction work between the discs, which increases its efficiency, as well as the efficiency of the press, As the flywheel built into the drive does useful work at the time of performing the technological operation and reduces alternating loads in the press drive shaft. After performing the technological failure, the clutch 6 of the running stroke and the muffga 11 are turned off, the clutch of the accelerated stroke 5 and the brake 13. turn on up, and the fly 12 is braked by a brake 13. Claims of the invention Two-speed drive of a slider of a double-acting crank press containing a connecting crank shaft with an electric motor, kinematic chains of accelerated and working strokes, each of which has an actuating clutch mounted, characterized in that, in order to achieve durability and reliability, it is equipped with a flywheel mounted rotatably on a crank shaft, a rigid clutch with a crank shaft, and flywheel brake. Sources of information taken into account in the examination: 1. Vlasov, V. I., Filkin, I. N. and 3feiKOB V. A. The performance of low-speed double-acting stretch presses, NIIMASH, M., 197O, fig. 10 a.