SU961991A1

SU961991A1 - Screw press

Info

Publication number: SU961991A1
Application number: SU792786950A
Authority: SU
Inventors: Михаил Владимирович Холмогоров; Григорий Васильевич Воробьев; Александр Андриянович Боков
Priority date: 1979-06-29
Filing date: 1979-06-29
Publication date: 1982-09-30

Description

(54) ВИНТОВОЙ ПРЕСС(54) SCREW PRESS

1one

Изобретение относитс .к машиностроению , в частности к конструкции оборудовани дл обработки давлением.The invention relates to mechanical engineering, in particular to the design of equipment for pressure treatment.

Известен винтовой пресс, содержащий установленный в направл ющих станины ползун , сочлененный с винтом и смонтированные на нем маховик и муфту, св занную передачей с приводом 1.A screw press is known that has a slide mounted in the bed guides, articulated with a screw and mounted on it a flywheel and a coupling connected by transmission with the drive 1.

Известный винтовой пресс не обеспечивает длительной стабильной работы из-за существенного износа его механизмов и наличи некомпенсированных крутильных колебаний , передаваемых на фундамент, что ограничивает производительность пресса и снижает надежность его работы.Known screw press does not provide long-term stable operation due to significant wear of its mechanisms and the presence of uncompensated torsional vibrations transmitted to the foundation, which limits the performance of the press and reduces the reliability of its work.

Цель изобретени - повышение надежности и быстроходности.The purpose of the invention is to increase reliability and speed.

Поставленна цель достигаетс тем, что винтовой пресс, содержащий установленный в направл ющих станины ползун, сочленен ный с винтом и смонтированные на нем маховик и муфту, св занную передачей с приводом , снабжен дополнительной муфтой и двум дополнительными маховиками, установленными на винте с возможностью вращени в разные стороны и св занными сThe goal is achieved by the fact that a screw press containing a slide mounted in the bed guides, articulated with a screw and mounted on it a flywheel and a coupling connected with the drive transmission, is provided with an additional coupling and two additional flywheels mounted on the screw with the possibility of rotation different sides and related

основным посредством основной и дополнительных муфт.primary through primary and secondary couplings.

На чертеже показана кинематическа схема устройства.The drawing shows a kinematic diagram of the device.

Винтовой пресс состоит из станины I, в направл ющих которой смонтирован ползун 2 с гайкой 3, соединенный с винтом 4. Винт 4 в станине 1 смонтирован в подшипниках 5 и 6. От осевых перемещений винт удерживаетс торцами подшипника 5.The screw press consists of a frame I, in the guides of which a slider 2 with a nut 3 is mounted, connected to a screw 4. A screw 4 in a bed 1 is mounted in bearings 5 and 6. A screw is held by axial displacements by bearing ends 5.

В верхней части станины 1 на хвостовике винта 4 укреплены неподвижно полумуфты 7 и 8 и смонтированы 9 и 10, которые имеют возможность перемещени вдоль оси вицта 4 от какого-либо энергоносител (не показан).In the upper part of the frame 1 on the shank of the screw 4, the semi-couplings 7 and 8 are fixed and mounted 9 and 10, which can move along the axis of the Vitz 4 from any energy carrier (not shown).

Claims

Half couplings 7 and 9 form the main clutch, while half couplings 8 and 10 form an additional clutch. A pulley 12 is mounted on bearings 11. A carriage 14 and a driving flywheel 15 are mounted on bearings 13 of a screw 4. Between the coupling halves 7 and 9, a friction disk 16 (main coupling) is mounted for movement along the slits of the carriage 14. In the frame 1, axles 17 of gears 18 are fixed, which engage with the teeth of pulley 12 and carriage 14. Between the coupling halves 8 and 10, the friction disk 19 (additional coupling) is mounted for movement along the splines of the pulley 12. With coupling half 8, the first additional flywheel 20 is rigidly coupled. On the coupling half 8, a second additional flywheel 21 is mounted on a loose fit. In frame 1, axles 22 of gears 23 are fastened, which engage gears with additional flywheels 20 and 21. Pulley 12 is connected by a belt drive to a pulley 24 by an electric motor 25. For braking the drive, a brake 26 is installed (energy carrier not shown). The press works as follows. From the electric motor 25, the pulley 12 rotates through a belt drive. Together with the pulley 12, the friction disk 19 rotates, and the carriage 14, the flywheel 15 and the friction disk 16 rotate through gears 18, and the disks 19 and 16 rotate in different directions, and the screw 4 is braked 26. All of these parts are constantly rotated by the electric motor 25 and have a large inertial mass. In order to perform the technological operation, the brake 26 is released, the coupling half 9 is moved, after its movement the disk 16 is clamped between the coupling half 7 and 9 and the screw 4 is rotated with parts 7, 9, 10, 16, 8 and flywheels 20 and 21 located on it. Slider 2 moves down. In a certain predetermined location, not income to the lower dead point, the coupling half 9 is turned off and a technological operation is performed due to the energy of the rotating parts 7, 8, 20,21. Constantly rotating parts 12, 14, 15, 18, 19 have a large inertial mass, the energy of which is used to accelerate the moving parts of the press. After the operation is completed, the slider is raised.

2. To lift it, an energy carrier (not shown) is switched on, moving the coupling half 10, and the disk 19 is clamped between the coupling half 8 and 10, as a result of which the screw 4 is reverse rotated and the slide 2 is raised in a certain place (as established experimentally). Half coupling 9 is released. Due to the energy of the rotating parts 7, 8 and 20, 21, the further rise of the slide 2 by inertia. When the brake 26 is activated, the slider 2 finally stops at its highest point. When the screw 4 moves, the flywheels 20 and 21 rotate in different directions. At the moment of impact, which occurs when the slide is in contact with the product, the flywheels 20 and 21 abruptly stop, creating a reactive moment perceived by the press base bolts (not shown). Due to the fact that the flywheel 20 with parts 7 and 8 rotates in one direction and the flywheel 21 in the opposite direction, the reactive moment will be determined by the difference in the moments created by the flywheel 20 with parts 7 and 8 and the flywheel 21. By appropriate calculation and choice of parameters, this difference moments is getting close to zero. The technological operation takes place at the expense of the kinetic energy of additional flywheels, since the friction clutches controlled by the limit switches are disconnected at this moment and there is no sliding friction between their friction surfaces. This design increases the reliability of the mutf, and hence the reliability of the press as a whole. The frequency of vibrations of the drive flywheel at the time of the technological operation is not reduced, so there is no need to expend energy to restore them. This results in an increase in the productivity and reliability of the operation of the press, which determines the efficiency of its use. Claims of the invention: A screw press comprising a slide mounted on the bed bases, coupled to the screw and mounted on it a flywheel and a clutch connected by transmission with a drive, characterized in that it is equipped with an additional clutch and two additional flywheels in order to increase reliability and speed. mounted on the screw for rotation in different directions and connected to the main flywheel by means of the main and additional sleeves. Sources of information taken into account during the examination 1. Patent Czechoslovakia No. 146488, cl. 58 В 3, 15.12.72 (prototype).