SU716962A1

SU716962A1 - Lift

Info

Publication number: SU716962A1
Application number: SU782584604A
Authority: SU
Inventors: Виктор Филиппович Столяров
Original assignee: Центральное Проектно-Конструкторское Бюро По Лифтам Всесоюзного Объединения "Союзлифтмаш"
Priority date: 1978-02-27
Filing date: 1978-02-27
Publication date: 1980-02-25

Description

Изобретение относится к области лифтостроения и может быть использовано для подъема грузов различных габаритов и с массами, превышающими номинальную грузоподъемность лифта.The invention relates to the field of elevator construction and can be used for lifting loads of various sizes and with masses exceeding the nominal load capacity of the elevator.

Наиболее близким техническим реше^ ₅цием из известных является лифт, содержащий кабину и противовес, снабженные вертикальными направляющими и связанные друг с другом посредством канатов, огибающих шкивы на выходном валу редуктора с приводом, смонтированного на раме [1]. 10The closest technical solution of ^ ₅ tsiem is known an elevator comprising a cabin and the counterweight provided with vertical guides and connected with each other by means of ropes, pulleys envelopes on the output shaft with a drive gear mounted on the frame [1]. 10

Недостатком указанного устройства является отсутствие подъема груза, превышающего номинальное значение при условии неизменной массы противовеса.The disadvantage of this device is the lack of lifting of the load exceeding the nominal value provided that the counterweight remains constant.

Цель изобретения — повышение грузоподъемности при неизменной массе проти- ¹⁵вовеса.The purpose of the invention - increasing load capacity at constant mass proti- ¹⁵ vovesa.

Указанная цель достигается благодаря тому, что на стенках шахты укреплены кронштейны, а на раме смонтирована коробка Скоростей, входной вал которой связан с го приводом лифта, а выходной — с редуктором, на выходном валу которого установлены два дополнительных шкива, огибаемых подъемными канатами, одни концы которых закреплены на кабине, а на других концах подвешена траверса, масса которой равна массе кабины, причем на противовесе установлены блоки, число которых вдвое меньше числа шкивов на выходном валу редуктора.This goal is achieved due to the fact that the brackets are mounted on the walls of the shaft, and the Speed box is mounted on the frame, the input shaft of which is connected to the drive of the elevator, and the output shaft is connected to the gearbox, on the output shaft of which there are two additional pulleys, enveloped by hoisting ropes, one ends which are fixed on the cab, and at the other ends a traverse is suspended, the mass of which is equal to the mass of the cab, and on the counterweight there are blocks, the number of which is half the number of pulleys on the output shaft of the gearbox.

Кроме того, с целью обеспечения работы при удвоенной номинальной грузоподъемности, траверса скреплена с кабиной, а дополнительные шкивы скреплены с выходным валом редуктора.In addition, in order to ensure operation at twice the rated load capacity, the crosshead is fastened to the cab, and additional pulleys are fastened to the output shaft of the gearbox.

Кроме того, с целью обеспечения работы с номинальной грузоподъемностью траверса скреплена с кронштейнами, а дополнительные шкивы свободно посажены на выходном валу редуктора и скреплены с рамой. Кроме того, с целью обеспечения работы с грузом большого габарита крыша кабины связана со стенками посредством разъемного соединения.In addition, in order to ensure operation with the rated carrying capacity, the crosshead is fastened to the brackets, and additional pulleys are freely mounted on the output shaft of the gearbox and fastened to the frame. In addition, in order to ensure work with a large cargo, the cab roof is connected to the walls by means of a detachable connection.

На фиг. 1 представлен общий вид лифта; на фиг. 2 — вид по стрелке А на фиг. 1; на фиг. 3 — узел I на фиг. 2; на фиг. 4 — вид по стрелке Б на фиг. 2.In FIG. 1 shows a general view of the elevator; in FIG. 2 is a view along arrow A in FIG. 1; in FIG. 3 - node I in FIG. 2; in FIG. 4 is a view along arrow B in FIG. 2.

Лифт состоит из кабины 1, траверсы 2, противовеса 3, тяговых канатов 4 и 5, канатоведущих шкивов 6—9, установленных на общем валу 10, а последний при помощи муфты 11 соединен с тихоходным валом редуктора 12 привода, быстроходный вал которого при помощи муфты 13 соединен с выходным валом коробки скоростей 14, входной вал которой соединен с валом электродвигателя 15 привода при помощи муфты 16, объединенной с тормозом.The elevator consists of a cabin 1, a traverse 2, a counterweight 3, traction ropes 4 and 5, traction sheaves 6–9 mounted on a common shaft 10, and the latter is connected to the low-speed shaft of the drive gear 12 by a clutch 11, the high-speed shaft of which is driven by a clutch 13 is connected to the output shaft of the gearbox 14, the input shaft of which is connected to the shaft of the drive motor 15 by means of a clutch 16, combined with the brake.

Коробка скоростей 14 снабжена рукояткой 17 переключения скоростей.The gearbox 14 is equipped with a gearshift knob 17.

Тяговые канаты 4 и 5 одними концами закреплены на кабине 1, пропущены через отверстия 18 траверсы 2, огибают канатоведущие шкивы 6, 9 и блоки 19, 20 противовеса 3, после которого канаты огибают канатоведущие шкивы 7 и 8 и вторыми концами закреплены на траверсе 2.The traction ropes 4 and 5 are fixed at one end on the cab 1, passed through the openings 18 of the traverse 2, around the traction sheaves 6, 9 and blocks 19, 20 of the counterweight 3, after which the ropes go around the traction pulleys 7 and 8 and the second ends are mounted on the traverse 2.

Таким образом одна из ветвей канатов 4 и 5 огибает шкивы 6 и 9 и концами соединена с кабиной 1, а вторая ветвь канатов 4 и 5 огибает шкивы 7 и 8 и концами соединена с траверсой 2.Thus, one of the branches of the ropes 4 and 5 goes around the pulleys 6 and 9 and is connected to the cab 1 by the ends, and the second branch of the ropes 4 and 5 goes around the pulleys 7 and 8 and is connected to the beam 2 by the ends.

Блоки 19 и 20 связаны с противовесом 3 с помощью подвесок 21, а на концах канатов 4 и 5 кабина 1 и траверса 2 подвешены с помощью подвесок 22.Blocks 19 and 20 are connected to the counterweight 3 by means of suspensions 21, and at the ends of the ropes 4 and 5, cabin 1 and crosshead 2 are suspended by means of suspensions 22.

Привод лифта смонтирован на раме 23, на кронштейнах 24 и 25 которого установлен вал 10.The elevator drive is mounted on the frame 23, on the brackets 24 and 25 of which the shaft 10 is installed.

Траверса 2 снабжена талрепами 26, шарнирно связанными с нею постоянно одними концами, а вторыми концами — с кабиной 1 при работе лифта в режиме двойной номинальной грузоподъемности, а при работе лифта в режиме одинарной номинальной грузоподъемности траверса 2 отсоединена от кабины и вторыми концами талрепов неподвижно соединена с кронштейнами 27, закрепленными на стенках шахты.The traverse 2 is equipped with turnbuckles 26, permanently articulated with one end, and the second end with cab 1 when the elevator is operating in double rated load capacity, and when the elevator is in single rated load mode, traverse 2 is disconnected from the cab and the second ends of the turnbuckles are fixedly connected with brackets 27 mounted on the walls of the shaft.

Канатоведущие шкивы 6 и 9 жестко соединены с валом 10, а канатоведущие шкивы 7 и 8 посажены на вал 10 свободно, но могут быть соединены с ним жестко с помощью кулачковых муфт, снабженных рычагами 28 управления, причем жесткое крепление канатоведущих шкивов 7 и 8 осуществлено при работе лифта в режиме двойной номинальной грузоподъемности и в этом случае кабина подвешена на всех тяговых канатах, а при работе лифта в режиме одинарной номинальной грузоподъемности канатоведущие шкивы 7 и 8 освобождены от крепления на валу 10 и превращены в блоки.The traction sheaves 6 and 9 are rigidly connected to the shaft 10, and the traction sheaves 7 and 8 are freely mounted on the shaft 10, but can be connected to it rigidly using cam couplings equipped with control levers 28, and the traction sheaves 7 and 8 are rigidly mounted with the operation of the elevator in the double nominal load mode and in this case the cabin is suspended on all traction ropes, and when the elevator is in the single nominal load mode, the traction sheaves 7 and 8 are released from the fastening on the shaft 10 and turned into blocks.

При подъеме груза 29 большого габарита крыша кабины, разъемно связанная со стенками последней с помощью крепежа, должна быть демонтирована или раскрыта.When lifting a cargo of 29 large dimensions, the roof of the cabin, detachably connected with the walls of the latter with the help of fasteners, must be dismantled or opened.

Канатоведущий шкив 7 установлен на валу 10 свободно на подшипниках 30, от осевого перемещения по валу канатоведущий шкив ограничен с одной стороны буртом 31 вала 10, с другой — кольцом 32. Подшипниковый узел канатоведущего шкива закрыт с двух сторон крышками, а на одной из крышек 33 выполнена кулачковая полумуфта с зубьями 34 по окружности. Вторая полумуфта 35 имеет такие же зубья 36 и свободно может перемещаться по валу (влево и вправо) относительно шпонки 37, закрепленной на валу 10. Перемещение полу₅ муфты 35 обеспечивается рычагом 28, установленным шарнирно на кронштейне 38, смонтированном на раме 23, а нижний конец рычага 28 имеет вилку с роликами, которые входят в среднюю кольцевую проточку полумуфты 35.The traction sheave 7 is mounted on the shaft 10 freely on bearings 30, from axial movement along the shaft the traction sheave is limited on one side by a shoulder 31 of the shaft 10, and on the other hand by the ring 32. The bearing assembly of the traction sheave is closed on both sides by covers, and on one of the covers 33 made cam half-coupling with teeth 34 around the circumference. The second coupling half 35 has the same teeth 36 and can freely move along the shaft (left and right) relative to the key 37 mounted on the shaft 10. The floor _{5 of the} coupling 35 is moved by a lever 28 mounted pivotally on an arm 38 mounted on the frame 23, and the lower the end of the lever 28 has a fork with rollers, which are included in the middle annular groove of the coupling half 35.

ίο Канатоведущий шкив отключен от вала 10 (положение 1), т. е. становится блоком, свободно сидящим на валу 10. Канатоведущий шкив 7 жестко скрепляется с валом 10, (положение II), полумуфта 35 насажена на шпонке 37, то и канатоведущий шкив 7 оказывается жестко соединенным с валом 10.Канο The traction sheave is disconnected from the shaft 10 (position 1), that is, it becomes a block that sits freely on the shaft 10. The traction sheave 7 is rigidly attached to the shaft 10, (position II), the coupling half 35 is mounted on the key 37, then the traction sheave 7 is rigidly connected to the shaft 10.

Аналогично устроен и узел, управляющий отключением и включением канатоведущего шкива 8 по отношению к валу 10. Отключенные шкивы 7 и 8 связаны с рамой 20 23 посредством струбцин 39.The assembly controlling the disconnection and inclusion of the traction sheave 8 with respect to the shaft 10 is similarly arranged. The disconnected pulleys 7 and 8 are connected to the frame 20 23 by means of clamps 39.

Кабина 1 и траверса 2 расположены в шахте на направляющих 40 и перемещаются по ним с помощью установленных на них башмаков 41.Cabin 1 and traverse 2 are located in the shaft on guides 40 and are moved along them with the help of shoes 41 mounted on them.

Пустая кабина и траверса выполнены с ²⁵ одинаковыми массами. Масса противовеса равна сумме масс пустой кабины и траверсы плюс одна номинальная грузоподъемность.An empty cabin and a traverse are made with ²⁵ identical masses. The mass of the counterweight is equal to the sum of the masses of the empty cab and crosshead plus one nominal load capacity.

Работа лифта происходит следующим образом.The operation of the elevator is as follows.

зо При режиме одинарной номинальной грузоподъемности траверса отсоединена от кабины 1 и с помощью тарлепов 26 неподвижно закреплена на кронштейнах 27. Шкивы 7 и 8 с помощью струбцин 39 закреплены на раме 23 и с помощью рычагов 3S 28 освобождены от крепления на валу 10.In the single rated load mode, the crosshead is disconnected from the cab 1 and, with the help of Tarlep 26, is fixedly mounted on the brackets 27. The pulleys 7 and 8 are fixed on the frame 23 with the help of clamps 39 and are released from the fastening on the shaft 10 using levers 3S 28.

Рукоятка 17 коробки скоростей 14 установлена на большую (удвоеннуюю частоту вращения быстроходного вала рддуктора 12. При этом лифт работает с прямой подвеской ₄₀ кабины и полипастной подвеской противовеса, вследствие чего кабина поднимается на всю высоту подъема, а противовес только на половину высоты от его нижнего положения.The handle 17 of the gearbox 14 is set to a large (double the speed of the high-speed shaft of the reducer 12. The elevator operates with a direct suspension of the cabin ₄₀ and a polypropous suspension of the counterweight, as a result of which the cabin rises to the entire lifting height and the counterweight only half the height from its lower position .

При режиме двойной номинальной гру45 зоподъемности траверса 2 отсоединена от кронштейнов 27 и с помощью тарлепов 26 соединена с кабиной. Шкивы 7 и 8 с помощью полумуфт жестко скреплены с валом 10 после чего она освобождается от рамы снятием струбцин 39. Рукоятка 17 коробки скоростей 14 установлена на меньшую (половинную) скорость . Лифт работает по схеме прямой подвески как кабины, так и противовеса. При крупногабаритном грузе крыша кабины раскрыта, а при малогабаритном 55 грузе удвоенной массы крыша закрыта.In the regime of double nominal load capacity, the crosshead 2 is disconnected from the brackets 27 and connected to the cab with the help of the Tarlep 26. The pulleys 7 and 8 with the help of the coupling are rigidly fastened to the shaft 10 after which it is freed from the frame by removing the clamps 39. The handle 17 of the gearbox 14 is set to a lower (half) speed. The elevator operates according to the direct suspension scheme of both the cab and the counterweight. With a bulky cargo, the roof of the cabin is open, and with a small-sized 55 cargo of double weight, the roof is closed.

Claims

(54) LIFT on a common shaft 10, and the latter by means of a coupling 11 is connected to a low-speed shaft of a gearbox 12 of the drive, the high-speed shaft of which is connected by means of a coupling 13 to the output shaft of the gearbox 14, the input shaft of which is connected to the shaft of the electric motor 15 of the drive by means of a coupling 16 combined with brake. The gearbox 14 is provided with a gear shift knob 17. Traction ropes 4 and 5 at one end are fixed on cab 1, traverses 2 are passed through holes 18, traversing curved bars 6, 9 and blocks 19, 20 of the counterweight 3 are skirting, after which ropes skirting traversing pulleys 7 and 8 and the second ends are fixed at traverse 2 Thus, one of the branches of the ropes 4 and 5 bends around the pins 6 and 9 and ends are connected to cabin 1, and the second branch of caiats 4 and 5 bends around the pulleys 7 and 8 and the ends are connected to the crossmember 2. Blocks 19 and 20 are connected to the counterweight 3 with the help of hangers 21, and at the ends of the ropes 4 and 5, cabin 1 and traverse 2 are lifted by suspension 22. The elevator drive is mounted on frame 23, shaft 24 is mounted on brackets 24 and 25. Traverse 2 is provided with lanyards 26 pivotally connected to it permanently with one end, and second ends with cab 1 when the elevator operates in double nominal mode capacity, and when the elevator operates in single nominal capacity mode, yoke 2 is disconnected from the cab and the second ends of the lanyards are fixedly connected with brackets 27 fixed to the walls of the shaft. The rope guides 6 and 9 are rigidly connected to the shaft 10, and the rope-guiding pulleys 7 and 8 are seated on the shaft 10 freely, but can be rigidly connected to it with cam clutches equipped with control levers 28, and rigid mounting of the cable-guiding cheeks 7 and 8 is impressed, When the elevator operates in the double nominal capacity mode, the cab is suspended on all traction ropes, and when the elevator operates in the single nominal capacity mode, the traction sheaves 7 and 8 are freed from fastening on the shaft 10 and turned into blocks. When lifting a large-sized cargo 29, the cabin roof, detachably connected to the walls of the latter with the aid of fasteners, must be dismantled or opened. The cable driving pulley 7 is mounted freely on the shaft 10 on bearings 30, from the axial movement of the shaft, the cable driving pulley is bounded on one side by a shaft 31 of the shaft 10, on the other by a ring 32. The bearing unit of the path leading pulley is closed on both sides by covers, and on one of the covers 33 The cam half coupling is made with the teeth 34 circumferentially. The second coupling half 35 has the same teeth 36 and can freely move along the shaft (left and right) relative to the key 37 mounted on the shaft 10. The movement of the coupling half 35 is provided by a lever 28 pivotally mounted on a bracket 38 mounted on the frame 23, and the lower end of the lever 28 has a fork with rollers which are inserted into the middle annular groove of the coupling half 35. The traction driver is disconnected from the shaft 10 (position 1), i.e., becomes a unit freely seated on the shaft 10. The traction driver 7 is rigidly fastened to the shaft 10 (position II), half coupling 35 The key driver pulley 7 is rigidly connected to the shaft 10. The assembly controlling the disengagement and engagement of the cable guide pulley 8 with respect to the shaft 10 is similarly arranged. The pulleys 7 and 8 are connected to the frame 23 by clamps 39. Cab 1 and traverse 2 are located in the shaft on rails 40 and are moved along them with the help of shoes 41 mounted on them. The cab and traverse are made with the same masses. The weight of the counterweight is equal to the sum of the masses of the empty cabin and traverse plus one nominal load capacity. The elevator works as follows. With single nominal lifting capacity, the crosshead is disconnected from the cab 1 and fixed to the brackets 27 by means of talleps 26. The pulleys 7 and 8 are fastened to the frame 23 by means of clamps 39 and are released from the fastening on the shaft 10 by means of levers 28 14 is installed at a higher (doubled rotational speed of the high speed shaft of the inductor 12. In this case, the elevator operates with a direct cab suspension and a polypeday counterweight suspension, as a result of which the cab rises to the full height of the lift, and the counterweight only to the floor the height of the fault from its lower position. In the double nominal capacity mode, the yoke 2 is disconnected from the brackets 27 and connected to the cab with tarleps 26. The pulleys 7 and 8 are fastened to the shaft 10 by means of the coupling halves and then it is released from the frame by removing clamps 39. The handle 17 of the gearbox 14 is set at a lower (half) speed. The elevator operates according to the direct suspension scheme of both the cab and the counterweight. With a bulky cargo, the cabin roof is open, and with a small cargo of double weight, the roof is closed. Claim 1. Lift containing cabin and counterweight provided with vertical guides and connected to each other by means of ropes, enveloping pulleys on the output shaft of a reducer with a drive mounted on a frame, characterized in that, in order to increase the load capacity with a constant weight of the counterweight , brackets are fixed on the walls of the shaft, and a gearbox is mounted on the frame, the input shaft of which is connected to the elevator drive, and the output shaft is connected to the gearbox, on the output shaft of which two additional pulleys are installed, bending the hoisting ropes, one ends of which are fixed to the cabin, and on the other cross member is suspended whose mass is equal to the weight of the cab, wherein the counterweight blocks are set, the number of which is half the number of pulley on the output shaft of the gearbox.

2. The elevator according to claim 1, characterized in that, in order to ensure operation at double

nominal carrying capacity, traverse fastened to the cab, and additional pulleys fastened to the output shaft of the gearbox.

3. Lift under item I, characterized in that, in order to ensure operation with nominal

carrying capacity, traverse fastened with brackets, and additional pulleys loosely mounted on the output shaft of the gearbox and fastened to the frame.

4. An elevator according to Claim 1, characterized in that, in order to operate with a large load, the cabin roof is connected to the walls by means of a detachable connection.

Sources of information included in the examination

. USSR Author's Certificate in Application No. 2487474 / 29-11, cl. In 66 In 9/16, published. 19.05.77 (prototype).

6 7

38

thirty

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5

GT

FIG.