SU823257A1

SU823257A1 - Multirope hoisting unit

Info

Publication number: SU823257A1
Application number: SU792764398A
Authority: SU
Inventors: Анатолий Михайлович Филатов; Андрей Тимофеевич Загузин; Владимир Андреевич Пестряков
Original assignee: Магнитогорский Горно-Металлургическийинститут Им. Г.И.Hocoba
Priority date: 1979-05-07
Filing date: 1979-05-07
Publication date: 1981-04-23

Description

Изобретение относится к подъемнотранспортному машиностроению и может быть использовано в многоканатных подъемных установках со шкивами тре- j· НИЯ.The invention relates to hoisting machinery and can be used in multi-rope hoisting installations with pulleys of a tre-j · NII.

Известны подъемные установки, содержащие привод, на выходном валу которого насажены шкивы трения, огибаемые канатами, к которым подвешены cocy-Q ды с гидравлическим уравнительным устройством [1].Known lifting devices containing a drive on the output shaft of which are mounted friction pulleys, enveloped by ropes, to which cocy-Q dy are suspended with a hydraulic leveling device [1].

Известна шахтная подъемная установка, содержащая привод, на выходном валу которого насажены шкивы трения, огибаемые канатами, к которым подвешены подъемные сосуды с рычажно-балансирными уравнительными устройствами (2] .Known mine lifting installation containing a drive on the output shaft of which are mounted friction pulleys, enveloped by ropes, to which are suspended lifting vessels with lever-balancing equalization devices (2].

Однако в этой многоканатной подъемной установке канаты соединяются с подъемными сосудами посредством сложных по конструкции рычажно-балансирных устройств, имеющих сравнительно небольшую величину хода выравнивания. 25 Подвесное!-·уравнительное устройство в процессе эксплуатации перемещается с подъемными сосудами в стволе шахты, влажная атмосфера которой непрерывно воздействует на элементы подвесного __ устройства; Все это затрудняет про2 ведение контроля и снижает надежность подъемной установки. Кроме того, небольшая величина хода уравнительного устройства приводит к большим затратам труда при первоначальной установке канатов и уравнительного устройства.However, in this multi-rope hoisting installation, the ropes are connected to the lifting vessels by means of complicated lever-balancing devices with a relatively small leveling stroke. 25 Suspension! - · the leveling device during operation moves with lifting vessels in the shaft of the mine, the moist atmosphere of which continuously affects the elements of the suspension __ device; All this complicates the control and reduces the reliability of the lifting installation. In addition, the small stroke of the leveling device leads to large labor costs during the initial installation of ropes and leveling device.

Цель изобретения - повышение надежности.The purpose of the invention is to increase reliability.

ΊΊ

Цель достигается тем, что в установке, включающей привод с валом, шкивы трения, .подъемные сосуды, канаты и уравнительное устройство, шкивы трения установлены с возможностью относительно вала, при этом торцы шкивов выполнены со спиральными канавками с одинаковым по знаку углом раскручивания, а уравнительное устройство размещено между шкивами и выполнено в виде закрепленных на валу дисков с_радиальными вырезами и шаров, установленных с возможностью взаимодействия со спиральными канавками соседних шкивов. ' На фиг. 1 изображена многоканатная подъемная установка; на 'фиг. 2 — приводной вал со шкивами трения; на фиг. .3 — разрез А-А на фиг. 2 ; на фиг. 4 — разрез Б-Б на Фиг. 2. .The goal is achieved by the fact that in an installation comprising a drive with a shaft, friction pulleys, lifting vessels, ropes and leveling device, the friction pulleys are installed with the possibility of relative to the shaft, while the ends of the pulleys are made with spiral grooves with the same angle of unwinding, and the leveling the device is placed between the pulleys and is made in the form of disks mounted on the shaft with radial cutouts and balls installed with the possibility of interaction with the spiral grooves of adjacent pulleys. 'In FIG. 1 shows a multi-rope hoist; in FIG. 2 - a drive shaft with friction pulleys; in FIG. .3 - section AA in FIG. 2; in FIG. 4 is a section bB in FIG. 2..

МногокаФатная подъемная установка включает привод 1, на выходном валу которого насажены шкивы 3 трения, огибаемые канатами 4, присоединяемыми непосредственно к подъемным сосудамA multi-stage lifting installation includes a drive 1, on the output shaft of which there are mounted friction pulleys 3, enveloped by ropes 4, connected directly to the lifting vessels

5. Установка снабжена уравнительным устройством, которое включает в себя .приводные диски 7, закрепленные на приводном валу 2 и имеющие радиальные вырезы 9, в которых располагаются шары 10, входящие в спиральные канавки 11 шкивов 3. Спиральные канавки 11 расположенные по торцам каждого из шкивов 3, выполнены с одним и тем же по знаку углом раскручивания. Шкивы трения находятся на бронзовых втулках 6 приводных дисков 7 и торцовых дисков 8 и имеют возможност!? провора /5. The installation is equipped with an equalization device, which includes drive disks 7, mounted on the drive shaft 2 and having radial cutouts 9, in which the balls 10 are located, which enter the spiral grooves 11 of the pulleys 3. Spiral grooves 11 located at the ends of each of the pulleys 3 are made with the same untwisting angle in sign. The friction pulleys are located on the bronze bushings 6 of the drive disks 7 and the end disks 8 and have the ability !? agility /

чиваться относительно вала привода.relative to the drive shaft.

Подъемная установка работает следующим образом.Lifting installation works as follows.

При вращении приводом 1 вала 2 20 вращение посредством, например,.шпоночного соединения, передается на приводные диски 7, которые, в свою очередь, посоедством шаров 10 передают вращение на шкивы 3 трения. Пере- 25 мешение подъемных сосудов 5 осуществ ляется за счет наличия сил трения между шкивами 3 и канатами 4.When the drive 1 rotates the shaft 2 20, the rotation through, for example, a key connection, is transmitted to the drive disks 7, which, in turn, transmit rotation to the friction pulleys 3 by means of balls 10. The mixing of the lifting vessels 5 is carried out due to the presence of friction between the pulleys 3 and the ropes 4.

В процессе, работы подъемной установки наличие разности натяжений, ^Han_jQ ример, в двух соседних канатах 4,_ приводит к возникновению разности крутящих моментов, воздействующих на приводные шкивы 3. Так как каждый из шаров 10, находящихся в радиальном вы резе 9 приводного диска 7, Дзаимодействует с обеими спиральными канавками соседних шкивов, которые выполнены с идентичными по знаку углами раскручивания, но развернуты на 180° вокруг диаметральной оси и, таким образом, 40 обращены лицевыми сторонами друг к другу, то проворот двух соседних шкивов возможен только в противоположные стороны. Вследствие проворота соседних шкивов 3 относительно друг |j друга происходит частичное перемещение тяговых канатов 4, причем там, где натяжение каната 4 больше, и, следовательно, больше и крутящий момент, проворот шкива 3 происходит в сторону уменьшения натяжения в канате 4, а проворот соседнего шкива 3 — в сторону увеличения натяжения в канате 4. Этот процесс продолжается до полного выравнивания щатяжений в тяговых канатах .4. Таким образом происходит выравнивание натяжений.During the operation of the lifting installation, the presence of a tension difference, ^Han_ jQ example, in two adjacent ropes 4, _ leads to a difference in the torques acting on the drive pulleys 3. Since each of the balls 10 is located in the radial cut 9 of the drive disk 7 , Interacts with both spiral grooves of adjacent pulleys, which are made with identical untwisting angles, but rotated 180 ° around the diametrical axis and, thus, 40 face to each other, then turn two adjacent pulleys into only in opposite directions. Due to the rotation of adjacent pulleys 3 relative to each other | j, the traction ropes 4 are partially moved, and where the tension of the rope 4 is greater and, therefore, the torque is greater, the pulley 3 rotates in the direction of decreasing the tension in the rope 4, and the neighboring pulley 3 - in the direction of increasing tension in the rope 4. This process continues until the tension is completely equalized in the traction ropes .4. Thus, the tension is balanced.

На фиг. 3 показан пример выполнения шкива 3 трения с четырьмя спиральными канавками 11, расположенными на обеих торцовых плоскостях шкива 60 3, с углами раскручивания против.часовой стрелки.In FIG. 3 shows an example of a friction pulley 3 with four spiral grooves 11 located on both end faces of the pulley 60 3, with anti-clockwise rotation angles.

Приводные диски 7 имеют радиальные вырезы 9 по числу спиральных канавок. 11, расположенных на одной стороне шкива 3 трения. Радиальные вырезы 9 выполнены с продольными канавками, позволяющими удерживать в радиальных вырезах 9 шары 10. Для осуществления .монтажа вырезы 9 выполнены таким образом, чтобы шары 10 в них можно было вставлять через входное гнездо, находящееся ближе к периферии диска 7The drive discs 7 have radial cutouts 9 in the number of spiral grooves. 11 located on one side of the friction pulley 3. The radial cutouts 9 are made with longitudinal grooves, which allow holding the balls 10 in the radial cuts 9.

В предлагаемой подъемной установке величина хода выравнивания натяжений определяется поворотом шкивов относительно друг друга, т.е. величиной углов раскручивания спиралей ка- навок. Исходя из конкретных условий подъема и величины хода выравнивания, можно подобрать соответствующий угол раскручивания спирали. При этом величина хода выравнивания не ограничена у рычажно-балансирных устройств и может достигать больших величин, что позволяет с успехом применить . подъемную установку при больших глубинах спуска-подъема.In the proposed lifting installation, the value of the tension equalization stroke is determined by the rotation of the pulleys relative to each other, i.e. the magnitude of the unwinding angles of the grooves. Based on the specific conditions of the rise and the magnitude of the leveling stroke, you can choose the appropriate angle of unwinding of the spiral. Moreover, the magnitude of the alignment stroke is not limited for lever-balancing devices and can reach large values, which makes it possible to successfully apply. lifting installation at large depths of descent.

Расположение уравнительного устройства непосредственно на приводном_ валу подъемной машины значительно упрощает его эксплуатацию и повышает надежность всей подъемной установки, так как оно не перемещается вместе с сосудами и не подвергается воздействию агрессивных сред в стволе шахты.The location of the equalization device directly on the drive shaft of the lifting machine greatly simplifies its operation and increases the reliability of the entire lifting installation, since it does not move together with the vessels and is not exposed to aggressive environments in the shaft of the shaft.

Claims

SUBSTANCE: invention relates to a sing: a low-volume mechanical engineering industry and can be used in multi-hoisting installations with friction pulleys. Lifting installations are known that contain a drive, on the output shaft of which friction pulleys are fitted, which bend around ropes to which co-suspension with hydraulic balancing device 1 is mounted. A shaft lifting installation is known, containing an actuator, on the input shaft of which friction DJKHBH are fitted, circumscribed by ropes, to which lifting vessels with lever-balance balancing devices 2 are suspended. However, in this multi-cable lifting installation, the ropes are connected to the lifting vessels by means of devices of a balanced design, balanced in balance, which have a relatively small leveling stroke. The suspension-equalizing device during operation is moved with the lifting vessels in the shaft of the shaft, the humid atmosphere of which continuously acts on the elements of the suspension device; All this makes it difficult to control and reduces the reliability of the lifting installation. In addition, the sky, the 1 st magnitude of the stroke of the equalizing device, leads to the higher labor costs during the initial installation of the ropes and the balancing device. The purpose of the invention is to increase reliability. The goal is achieved by the fact that in an installation that includes a drive with a shaft, friction pulleys, lifting vessels, ropes and a balancing device, the pulleys are installed with respect to the shaft, while the ends of the pulleys are made with spiral grooves with the same angle of unwinding, and the balancing The device is placed between the pulleys and made in the form of disks fixed on the shaft with | Schschialnym cuts and balls installed with the possibility of interaction with the spiral grooves of the adjacent pulleys. FIG. 1 shows a multi-gang lift installation; in fig. 2 - drive shaft with friction pulleys; in fig. .3 - section A-A in FIG. 2; in fig. 4 is a section BB in FIG. 2.. The multi-hoist installation includes an actuator 1, on the output shaft of which pulleys 3 friction are fitted, guided by ropes 4 attached directly to the lifting vessels 5. The installation is equipped with a balancing device which includes drive disks 7 mounted on the drive shaft 2 and having radial The cutouts 9, in which the balls 10 are located, are included in the spiral grooves 11 of the pulleys 3. The spiral grooves 1 located along the ends of each of the pulleys 3 are made with the same spin angle. The pulleys 3 are located on bronze bushings 6 of the drive disks 7 and end disks 8 and have the ability to rotate relative to the drive shaft. Lifting installation works as follows. During rotation by the drive 1 of the shaft 2, the rotation by means of, for example, a spliced connection, is transmitted to the drive disks 7, which, in turn, through the perception of the balls 10 transfer the rotation to the pulleys 3 friction. The lifting of the lifting vessels 5 is carried out due to the presence of frictional forces between the beams 3 and the ropes 4. During the operation of the lifting installation, the presence of a tension difference, for example, in two adjacent ropes 4, leads to a difference in the torques acting on the drive pulleys 3. Since each of the balls 10 located in the radial cut-out 9 of the drive disk 7, b interacts with both spiral grooves of adjacent pulleys, which are made with identical angles of unwinding of the vania, but are turned 180 diametrically axis and, thus, facing the front to each other, the rotation of two adjacent pulleys is possible only in opposite directions. Due to the rotation of the adjacent pulleys 3 relative to each other, partial movement of the pull ropes 4 occurs, and where the tension of the rope 4 is greater and, consequently, the torque also increases, the rotation of the pulley 3 occurs in the direction of decreasing tension in the rope 4, and turning the adjacent pulley 3 in the direction of increasing the tension in the rope 4. This process continues to complete alignment (tensions in the traction rope .4. Thus, the tension is flattened. Fig. 3 shows an example of the pulley 3 friction with four spiral The grooves 11 located on both end planes of pulley 3 with counter-clockwise unwinding angles Drive disks 7 have radial notches 9 by the number of spiral grooves 11 located on one side of the three friction pulley. Radial notches 9 are made with longitudinal grooves, allowing the balls 10 to be held in the radial cut-outs 9. For mounting, the cut-outs 9 are designed so that the balls 10 can be inserted into them through an input slot that is closer to the periphery of the disk 7. In the proposed lifting device the magnitude of the tension leveling stroke is determined by rotating the pulleys relative to each other, i.e. the magnitude of the angles of unwinding of the spirals ka. navok. Based on the specific lifting conditions and the magnitude of the alignment stroke, it is possible to select an appropriate unwinding angle of the helix. In this case, the magnitude of the alignment stroke is not limited for lever-balancing devices and can reach large values, which makes it possible to apply with success. lifting installation at great depths of descent-ascent. The location of the balancing device directly on the drive shaft of the lifting machine greatly simplifies its operation and increases the reliability of the entire lifting installation, since it does not move with the vessels and is not exposed to corrosive media in the shaft shaft. Claims of the invention A multi-gang lifting installation including a drive with a shaft, friction pulleys, lifting vessels, ropes and a balancing device, o. In order to increase reliability, the friction pulleys are installed rotatably with respect to the shaft, while the ends of the pulleys are made with spiral grooves with the same angle of twist, and the balancing device is placed between the pulleys and made in the form of fixed on the shaft of disks with radial cuts and balls installed with the possibility of interaction with the spiral grooves of adjacent pulleys. Sources of information taken into account in the examination. , 1. White V.D. and Naidenko I.S. Mine multiple hoisting installations, m ,, Nedra, 1966, p.91 fig. 51.

2. White V.Ya. and Naidenko I.S. Mine multi-rope lifting installations. M., Nedra, 1966, p.95, fig. 57.

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Thebes 1

FIG. 2

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