SU912619A1

SU912619A1 - Hoisting machine

Info

Publication number: SU912619A1
Application number: SU792832078A
Authority: SU
Inventors: Алим Алексеевич Молчанов; Вячеслав Андреевич Морозов
Original assignee: Всесоюзный Научно-Исследовательский Институт Горной Механики Им.М.М.Федорова
Priority date: 1979-10-23
Filing date: 1979-10-23
Publication date: 1982-03-15

Description

(54) ПОДЪЕМНАЯ УСТАНОВКА(54) LIFTING INSTALLATION

1one

Изобретение относитс к подъемнотранспортному , машиностроению, в частности к подъемным установкам-, предназначенным , преимущественно, дл глубоких шахт с вертикальными стволами.The invention relates to lifting, engineering, in particular to lifting installations, designed primarily for deep mines with vertical shafts.

Известна подъемна установка, содержаш .а грузонесуш.ий сосуд с ходовыми колесами , установленными в вертикальных направл ющих, св занные посредством гибких т говых органов с грузонесущим сосудом приводные барабаны с фрикционным механизмом подъема, состо щим из двух рычагов, на одном конце каждого из которых смонтированы охватывающие направл ющие приводные ролики 1.A well-known lifting device, comprising a cargo-carrying vessel with running wheels mounted in vertical guides, connected by flexible traction bodies to a cargo-carrying vessel, driving drums with a friction lifting mechanism consisting of two levers, at one end of each of which covering guide rollers 1 are mounted.

Недостатком данной подъемной установки вл етс то, что необходимо, по крайней мере, не менее трех приводов с электродвигател ми , причем размещение на крйще подъемного сосуда приводных барабанов с электродвигателем увеличивает вес порожнего сосуда, а следовательно, уменьшает вес поднимаемого полезного груза. Кроме того, двигатели на фрикционном механизме подъема работают в поворотно-кратковременном режиме с ПВ не более 50%, т. е.The disadvantage of this lifting installation is that at least at least three drives with electric motors are necessary, and the placement of drive drums with an electric motor on the railing of a lifting vessel increases the weight of the empty vessel and, consequently, reduces the weight of the lifted payload. In addition, the engines on the friction lifting mechanism operate in a short-turn mode with a PT of not more than 50%, i.e.

плохо используетс установленна мощность подъемной установки.the installed capacity of the lifting installation is poorly used.

Цель изобретени - уменьшение установленной мощности привода подъемной установки и снижение веса порожнего грузонесущего сосуда.The purpose of the invention is to reduce the installed capacity of the drive of a lifting installation and reduce the weight of an empty load-carrying vessel.

Поставленна цель достигаетс тем, что в подъемной установке приводные барабаны размещены на другом конце каждого из рычагов, а приводы смонтированы в средней части рычага с возможностью взаимо10 действи с приводным барабаном и роликом .The goal is achieved by the fact that, in a lifting installation, the driving drums are placed at the other end of each of the levers, and the drives are mounted in the middle part of the lever with the ability to interact with the driving drum and roller.

На фиг. 1 изображена предлагаема подъемна установка, общий вид; на фиг. 2схема , по сн юща процесс подъема гру15 зонесущего сосуда к левому фрикционному механизму подъема; на фиг. 3 - то же, при подъеме к правому фрикционному механизму подъема.FIG. 1 shows the proposed lifting installation, the general view; in fig. 2 schematic diagram, explaining the process of lifting a group of an enclosing vessel to the left friction lifting mechanism; in fig. 3 - the same, when lifting to the right friction lifting mechanism.

Claims

Lifting installation - contains two frictional lifting mechanisms 3 and 4 moving along vertical guides 1 and 2, each of which is supported by a vertical guide using drive rollers 5, 6 and 7, 8 that surround it. Drive rollers 6, 7. are connected through gearbox with electric motors 9 and 10. At the opposite free ends of the levers of the friction lifting mechanisms, drive drums 11 and 12 with ropes 13 and 14 are fixedly mounted, the ends of which are stocked on the drums. The ends of the ropes 13 and 14 are fixed on the roof of the cargo vessel 15, which moves along the guides 1 and 2, resting on the inlet wheels 16. The electric motors on the friction lifting mechanisms are fed by current from the trolls. The principle of the lifting installation is as follows. At that moment, when, for example, the frictional lift mechanism 3 is in the upper position (see Fig. 2), it is inhibited and the cargo vessel 15 is pulled to it by means of a driving drum 11. At this time, the electric motor 9 through the gearbox is attached to the shaft of the drum 11 and causes it to rotate, winding the rope 13 on the drum. At the same time, the friction lifting mechanism 4 rises to the full length of the rope 14. At the same time, the drum 12 rotates freely, unwinding the cable 14. The amount of force applied to the drive rollers 5, 6 and 7, 8 to the vertical guides 1 and 2 depends on the weight of the cantilever part of the friction mechanism placed by her drive drum and rope. Thus, when the vessel 15 reaches the level of the friction lifting mechanism 3, the second lifting mechanism 4 appears by a length of cable 14 higher than this level (see Fig. 3). The process of lifting the vessel to the locked friction lifting mechanism 4 begins due to the thrust force generated on the drum 12. For this, the actuator 10 is derived from kinematically connected with the drive roller 8 and connected to the shaft of the drum 12. The rope 14 is wound onto the drum 12 and the tension of the rope 13 weakens, allowing the frictional lift mechanism 3 to rise. To accomplish this lift, the motor 9 is brought out of the kinematic connection with the driving drum 11 and connected to the roller 7. When the friction lifting mechanism 3 and the vessel 15 reach the extreme positions, the process is repeated as described. In order to achieve the continuity of lifting the vessel 15, winding, for example, the rope 14 from the drum 12 occurs at a higher speed than winding the cable 13. This ensures that the level of the lifting friction lifting mechanism 4 exceeds the level of the vessel 15, which is equal to the full length of the unwound cable 14 before the vessel arrives at the extreme upper position of the stationary friction lifting mechanism 3. Therefore, on a certain segment of the path, when approaching the stationary lifting mechanism 3, the following operations occur: when unwinding the full cannon length At 14, drum 12 stops; for a while the lifting mechanism 4 continues to rise upward with the speed of lifting the vessel 15; the electric motor-10 is kinematically connected with the drum 12 while maintaining the connection with the roller 8, i.e. during this period the lifting mechanism 4 continues to rise up at a speed lower than the lifting speed of the vessel 15, and the winding of the rope 14 on the drum 12 has already begun ; motor 10 is disconnected from roller 8 and lifting mechanism 4 is locked; for a short time, both drums 11 and 12 wind the ropes; the electric motor 9 communicates kinematically with the roller 7 and disconnects from the drum 11, i.e., the lifting mechanism 3 moves up and the drum 11 freely rotates in the opposite direction, releasing the rope 13. The proposed lift has a smaller installed - power of electric motors and lower metal consumption, since instead of four electric motors with gearboxes, it can be twice as small. In this case, the use of electric motors is more complete than in the known installation, due to the provision of continuous operation of electric motors, either as marching drives, or as traction. In addition, placing devices on the roof of a cargo vessel (devices that remain only rope hangers) reduces the weight of the empty vessel and, consequently, increases the weight of the lifted load. Claims of the invention A lift installation comprising a load carrying vessel with running wheels mounted in vertical guides connected by flexible traction bodies to a load carrying vessel driving drums with a friction lifting mechanism consisting of two levers, at one end of each of which are mounted driving rollers, characterized in that, in order to reduce the installed power and reduce the weight of the vessel, the driving drums are placed at the other end of each of the levers, and Waters are mounted in the middle part of the lever with the ability to interact with the drum and roller. Sources of information taken into account in the examination 1. USSR author's certificate in patent No. 2685666/11, B 66 B 9/02, 1978, (prototype).