MXPA97008831A - Modu construction elevator - Google Patents

Abstract

The present invention relates to an elevator of modular construction that can be connected to a wall of a building having elevator cubicle doors in the floors, the modular elevator includes a top module, a pair of guide rails or guide modules and an elevator car traveling along the guide modules and which is connected to at least one counterweight, which is guided by guides, a driver for the elevator car comprising: a pulse module adapted to be connected to one of a top module and a modular elevator seat module, the pulse module includes a motor having a pair of pulse axes exiting outwardly: a pair of drive pulleys each connected and rotated by one of the respective drive axes: a support cable adapted to be connected to an elevator car traveling along the guide modules by engaging the impulse pulley to move the elevator car, and each moment axis is supported on one of the modules gu

Description

Modular construction elevator Description The present invention relates to an elevator of prefabricated modular construction, for the transport of people and / or merchandise, which can be attached to a wall of a building that has box doors, and which consists, in essence, of a module of seat, of a higher module, of guide modules in the form of columns and of a cabin, as well as of counterweights driven in the guide modules. Due to the efficiency and variability, this type of elevator is suitable for both low buildings and high buildings. The field of application ranges from small forklifts to bed lifts for hospitals or similar buildings. In the unpublished EP application No. 96108133.8, an exterior mounting elevator of the type described at the beginning is described, in which the car is configured as a vertical automotive transport unit by means of a friction wheel drive arranged under the cab.

The advantage of automotive cabins is that there is no need for a machine room and that several cabins can circulate in the same box. On the other hand, the drive must always be pulled together. The object of the invention is to present in this aspect a solution for the operation of an elevator car, which also does not require a machine room and with which it is not necessary to drag the drive unit with the elevator car. At the same time the modular construction is conserved, which allows the production in series of complete elevator systems with different load capacities and for buildings of different heights. The invention is characterized in claim 1 and is distinguished, inter alia, in that the stationary drive is provided as an integral part of the modular system and forms as such a top-drive module or a seat-drive module. Advantageous improvements and improvements are indicated in the subclaims. The drive module is configured as a part of the upper-drive module or seat-drive module assembly. The stationary drive configured as a top-drive module or seat-drive module, has two drive shafts with a drive pulley each. The protruding drive shafts are guided in a protective tube and housed again at their outer end, the end of the protective tube being supported without additional elements or parts in an opening of the guide module.

By arranging the drive pulleys directly on the guide modules, other additional drive pulleys can be dispensed with. A thin and extended drive requires only a small construction height, so that if the elevator is installed, for example, in an existing box, this box does not have to be extended upwards due to the drive. The stationary drive can be divided into two individual drives, for example for the purpose of doubling the power, each of the two drives being assigned to a guide module, whereby seat modules and upper modules can be formed with double drives. A top-drive module or a seat-drive module can be assembled with guide modules, fastening modules and a seat module or a top module, to form a self-supporting frame constituting a transportable unit by truck or rail. By arranging the individual drives in the upper module opposite one another, the loading of the module is compensated around the transverse axis. The invention is explained below in more detail on the basis of an exemplary embodiment, and is shown in the drawings, which show: Figure 1: An elevator with a stationary drive as an upper module, viewed laterally.

- Figure 2. An elevator with a stationary drive as an upper module, seen from above. - Figure 3. An elevator with a stationary drive as an upper module and a suspension with a 2: 1 ratio of the cab and the counterweight, viewed laterally. - Figure 4. An elevator with a stationary drive as an upper module and a suspension with a 2: 1 ratio of the cab and the counterweight, seen from above. - Figure 5. An elevator with a divided stationary drive situated in the upper part, viewed laterally. - Figure 6. An elevator with a divided stationary drive situated at the top, seen from above. - Figure 7. An elevator with a divided stationary drive situated in the lower part, viewed laterally. - Figure 8 and last. An elevator with a divided stationary drive located at the bottom, seen from below. In FIG. 1, the wall of a building is designated as 1, in which, guided by two guide modules 10 in the manner of columns, an elevator car 5 is moved up and down. A box is not necessarily required as a component. construction of a building and as a support for the fixing elements of the guide rails of the cabin and the counterweight, as well as other specific equipment of the elevators. The guide modules 10 extend along several floors 8 and have a maximum length of approximately 18 m, due to the planned road transport. By assembling several elements, more length can be achieved and the elements can be used in taller buildings of up to 100 m and more. The elevator car 5 has guide pulleys 17 in an upper yoke 4 and in a lower yoke 7, as well as a cable end fitting 20 in the upper yoke 4. The upper yoke 4 and the lower yoke 7 are vertically connected to the frame 6. The guide modules 10 are connected to the building by fixing modules 11 in the floors 8. The guide modules 10 are connected transversely in the lower part to a seat module 13 and deposited on the floor of the box. The seat module 13 further carries one or two dampers 23. The guide modules 10 are transversally connected at the top to an upper module 2, the upper module 2 carrying a drive module 12, which in this combination is designated as a module upper drive 22. The drive module 12 has lateral drive pulleys 14, on which support cables 3 have been passed in each case, which are connected by means of the second cable terminal clamps 20 to the elevator car 5 and the counterweights that move in the guide modules 10. In the view of figure 1 only one of the two drive pulleys 14 can be seen. The same goes for the guide modules 10 and the counterweights 9. The guide modules 10 can Be configured as a profile with any shape, with or without counterweight guides.

In figure 2, the elevator of modular construction is arranged in an elevator box 27. Viewed from above, other details of the upper-drive module assembly 22 can be recognized. This consists of a drive module 12, with a motor 19, arranged centrally between two parallel crossbars. The motor 19 has drive shafts 18 that exit on both sides and at the outer ends of which a drive pulley 14 is housed. The drive shafts 18 are provided with a protective tube, although in the schematic representation it can not be seen, the protective tube at the outer end having a support for shafts, behind the drive pulley 14. In order to support this point of support, the protective tube is inserted with its outer end into a corresponding recess of the guide module 10, being driven in this way the vertical force of the load coupled with the elevator car and the counterweight 9 to the guide module 10, which is dimensioned in a bulky-resistant manner. Thanks to this arrangement, bending forces are not produced in the drive shafts 18. The drive module 12 is designed as a support part of the upper drive module assembly 22 and thus replaces additional connecting and reinforcing struts between the crosspieces. The drive module 12 comprises, in addition to the motor 19, a brake not shown and, depending on the circumstances, a reduction gear, also not represented. The drive module 12 is advantageously constructed according to EP 96107861.5, which is declared as an integral part of this application, that is, configured with a hollow rotor shaft, which leads to a thin and extended construction, with a small diameter of drive. In this way, with the additional use of drive pulleys 14 of 150 to 300 mm in diameter and, preferably, aramid cables, only very low height of horizontal construction is required. The support cables 3 emerging from the drive pulleys 14 carry, practically without oblique tension, the center of the guide modules 10, the counterweights 9, on the one hand, and the cable end fasteners 20 of the lateral arm projecting from the frame. 6 of the elevator car 5. Figures 3 and 4 show in principle the same arrangement of the drive module 12 as in the previous arrangements. However, the difference with respect to these is that here the elevator car 5 and the counterweights 9 are suspended in a 2: 1 ratio. For this purpose there are reversing pulleys 15 in the elevator car 5 and reversing pulleys 16 in the counterweights 9. In addition, the cable end fasteners 20 are located in the upper drive module 22. With this arrangement, it can be dispensed with in many cases. cases of a reduction gear in the drive module 12, achieving even better performance even at lower costs. This provision is foreseen for those cases of application in which it is necessary to transport high loads at speeds between low and medium. The arrangement according to FIGS. 5 and 6 shows another possibility of further expanding the power field of the elevator installation according to the invention. For this purpose, the drive modules 12 are used in duplicate, each of them through the left and right guide modules 10. By means of a suitable construction of the protruding arm, not shown in detail, the two actuating modules 12 are fixedly connected to the upper module 2 and thus form a double upper-drive module 24. In the shown embodiment, the elevator car 5 and the counterweights 9 are further suspended in a ratio of 2: 1, which, with half the speed, results in the logical duplication of the lift force. In the illustrated embodiment, the two drive modules 12 are arranged opposite one another. The purpose of this is to compensate the torque under load around the transverse axis of the upper module 2 or of the upper module-double drive assembly 24. If the drive module 12 is used for a double actuation, the motor 19 has only one output shaft 18 with a drive pulley 14. As a last variant, FIGS. 7 and 8 show an arrangement with the drive located in the lower part. In this case, the drive module 12 is fixedly connected to the seat module 13 and the support cables 3 are carried by means of the reversing pulleys 15 and 16, located in the upper module 2, to the elevator car 5 and to the counterweights 9 , the pulley 15 being provided as an inversion pulley for the elevator car 5 and the pulley 16 as an inversion pulley for the counterweights 9. The reversing pulleys 15 and 16 are fixed by means of a holding bracket 21 in each case to a module 10. The seat module 13 is thus converted to the seat-actuator module 25. A suspension is shown in a ratio of 1: 1 for the elevator car 5 and the counterweights 9. However, with the actuator located in the lower part it is also possible to perform a suspension in a 2: 1 ratio. A doubling of the driving power can also be achieved by providing, as in the case of the drive located above, two drive modules 12 and thus forming a double seat-drive module 26, not shown. The examples shown show the possibilities of adapting a modular system to a wide range of possibilities in terms of transportable load and speed. At the same time, a large part of equal modules can be used for all layout variants. The power settings in terms of lift force and speed can be varied by the number of drive modules 12, with and without gear reducer, as well as combined with the type of suspension ratio 1: 1 or 2: 1 . If engines 19 with different powers are used, greater possibilities of application in terms of lift force and speed are opened. In the case of double drives it is ensured with a corresponding control of the motor, for example with identical speed and torque values, that there are equal traction forces on both sides. For the forced synchronization of the two drives, a mechanical coupling can also be provided with suitable means, for example with chain and sprockets. The thin and extended form of the upper-drive module 22 or of the seat-actuator module 25 makes it possible to arrange the guide modules 10, with very short fixing modules 11, very close to the building, being then absorbed by the structure of the structure. the latter the horizontal forces that occur. In this way, the present modular system is also suitable for carrying out backpack elevators. The installation of the elevator according to the invention in a box 27 does not imply any modification of the arrangement by modules. The walls of the existing box then serve only as a protection device and do not suffer loads of fasteners. The elevator can be carried to the site as a complete prefabricated unit, inserted from above into the open case 27, and then fixed to the wall of the box doors.

Claims (10)

1. Claims 1 .. Elevator of prefabricated modular construction in series, for the transport of people and / or merchandise, which can be joined to a wall of a building that has box doors, and which consists, in essence, of a seat module
2. (13), of an upper module (2), of guide modules (10) in the form of columns and of a cabin (5), and preferably having counterweights (9) guided by the guide modules (10), characterized in that, as a minimum, a drive module (12) with a drive pulley (14), which can be combined with the upper module (2) or with the seat module (13), is connected by means of supporting elements
3. (3) to the cabin (5). Elevator according to claim 1, characterized in that the drive module (12) is designed as a support part of the upper drive-module assembly (22) or seat-drive module (25). Elevator according to claim 1 or 2, characterized in that the drive module (12) has a motor (19) with two projecting drive shafts (18) with, in each case, a drive pulley (14), the shafts being of drive (18) wrapped by a protective tube with support for trees that is supported on the guide module (10) behind the drive pulley (14).
4. 4. Elevator according to one of the preceding claims, characterized in that two drive pulleys (14) are provided for each cabin. Elevator according to one of the preceding claims, characterized in that the drive pulleys (14) are arranged directly on the guide modules (10) in the form of a column. Elevator according to one of the preceding claims, characterized in that the drive module (12) has a motor (19) with two drive shafts (18), preferably coaxially. Elevator according to one of the preceding claims, characterized in that the drive module (12) has a thin and extended shape and is equipped with a drive pulley (14), preferably 150 mm to 300 mm in diameter. Elevator according to one of claims 1 to 5, characterized in that the drive module (12) has, in the case of an upper module / lower module-double drive (24, 26) and for each guide module (10) , a motor (19) with an output drive shaft (18) with a drive pulley (14). Elevator according to one of the preceding claims, characterized in that a top module-drive / double drive (22, 24) or a seat-drive module / double drive (25, 26) can be assembled with guide modules (10) and fixing modules (11) to form a self-supporting framework that constitutes a transportable unit. Elevator according to claim 8 or 9, characterized in that two drive modules (12) parallel to the axis in opposite directions are arranged in the upper double-drive module (24).