FI119242B - Method of making the lift and delivery system of the lift - Google Patents

Abstract

Method for making an elevator, wherein the roping is selected according to the weight of the elevator car using the same drive machine, traction sheave and rope sheave regardless of the roping. For heavy elevators, Single Wrap roping is used, wherein the hoisting ropes are passed around the traction sheave and the rope sheave guides the ropes and dampens their vibrations, while for light elevators Double Wrap roping is used.

Description

92 119242 METHOD FOR LIFTING AND LIFE DELIVERY SYSTEM

The invention relates to a method of making an elevator as set forth in the preamble of claim 1 and to an elevator delivery system as set out in the preamble of claim 5.

The ability of the elevator drive wheel to transfer motion to the elevator hoisting ropes, as well as the ability to brake the rope, i.e. the grip between the drive wheel and the hoisting ropes, depends essentially on the arc length the hoisting ropes contact the drive wheel and the force exerting on the hoisting ropes. In the prior art, traction sheave lifts have known solutions in which the arc length used has been increased, for example by using 15 so-called Douple Wrap ropes or by using a relatively heavy elevator car and counterweight with a fairly common so-called Single Wrap rope. Generally, Douple Wrap is used only if it is not meaningful to add weight to the cradle and counterweight. For example, in high-lift high-speed elevators, it is more appropriate to • • · HI to increase traction rather than to increase moving masses. Often, such high-lift high-lift elevators also have • • · 25 compensating ropes or the like, which increase the weight of the moving masses, which • imbalances the weight of the ropes on the elevator car and counterweight. . For slower lifts with a lower lift height, a simple way to increase traction is to add weight • ·. ···. 30 and counterweight. Thus, in practice, there are quite different design • •: starting points for different types of elevators and finally, at least to some extent, for inconsistent ♦ «·: ... ί product lines. Especially in slower his-. . ·. they require relatively heavy lift baskets • * · 1 • · even at low rated loads.

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US 5957242 A discloses a machine rack solution in which the drive wheel and the pivot wheel can be placed as weapons. In the solution with a flywheel, the rope can be twisted one, two, etc. times.

The object of the invention is to reduce the difference of components in the process of supplying different elevators. The invention provides a method in which the Single Wrap or Douple Wrap rope is selected depending on whether the elevator car is light or heavy and the delivery system in which the Single Wrap or Douple Wrap rope is selected depending on whether the elevator car is light or heavy. With respect to the features of the invention, reference is made to the following claims.

15 Increasing the rope angle increases the grip between the ropes and the drive wheel. The Douple Wrap rope is a rope angle increment, where the secondary wheel typically achieves 180 degrees greater contact between the traction sheave and the ropes than the conventional 20 Single Wrap solution with a 180 rope angle. freezing. In both the Single Wrap and Douple Wrap • · · solutions, the rope angle may sometimes differ significantly from these values (180, 360 degrees), but Douple Wrap is important to the invention. use of good traction by the rope • · · ϊφρ> ϊ 25-: * ·, · lightweight lift and in cases with sufficient traction • · · ** '. otherwise, due to the heavy lift, it is possible to · · · list the lift operation in a substantially similar configuration.

30 In the Douple Wrap rope arrangement, the hoisting rope is:. rotate the drive wheel twice. The Douple Wrap f · · rope, of course, takes twice as much * · T of rope groove as the number of ropes. On the other hand, a lightweight elevator does not need as many ropes to carry an elevator car as a heavy lift. In the Single Wrap 3 119242 rope arrangement, the rope wheel, which is preferably the same size as the traction sheave, acts as a "tangling wheel" which controls the ropes and dampens their vibrations.

5 In Single Wrap rope, the rope wheel acts as a tanner for the ropes landing on the body and counterweight, and at the same time acts as a damping wheel for the ropes, smoothing out the vibration of the ropes. The ropes are wrapped once around the drive wheel and only touch the rope wheel. In Douple Wrap -10, the ropes are wrapped around the drive wheel two and / or more times and at least once around the rope drive. Also in Douple Wrap, the rope wheel acts as a rope damping wheel.

By increasing the grip angle, the rope pulley provides increased grip between the traction sheave and the hoisting rope. In this way, the body and counterweight can be lightened and also reduced in size, thereby increasing the space saving potential of the elevator. Alternatively, or simultaneously, the weight of the elevator car relative to the weight of the counterweight may be reduced. More than 180 ° grab angle for the drive wheel and,. between the hoisting rope is achieved by using a rope • · · !!! cycles or ropes.

• · • ♦ · * ··: When, for example, a public building requires more than one elevator, some of which are for personal use and some for maintenance, it is very practical and inexpensive to use only. by changing the rope, put the same • · traction and rope wheel and gear. Modularity and. . It is logistically very advantageous to • • · decide on the rope lift at the installation site. Also in case of modernization it is advantageous to replace, for example, a plastic mat with a stone ·· 2 · 2 .3. • floor, whereby the elevator car becomes considerably • • 1 ·. • 1 · 3 * ·! · 1 requires only one rope change between the traction sheave and the rope pulley, and • · 4 119242 increases the load capacity of the hoisting rope by increasing the number of ropes.

A preferred embodiment of the elevator according to the invention is a machine-roomless overhead elevator having a drive wheel plated in a drive mechanism. In the elevator, the lifting ropes have a grip angle of more than 180 ° on the traction sheave. The elevator comprises a unit in which a drive mechanism, a traction sheave and a rope pulley are mounted on a platform.

The invention achieves e.g. Benefits: 10 - Better grip between ropes and drive wheel as rope angle is raised - Same machine coverage over a wide bodyweight range - Better traction can reduce and reduce body and counterweight 15 - Elevator body weight relative to counterweight - Because rope is required for Douple Wrap twice the number of ropes, there are enough grooves on the rope wheels for Single Wrap 20 ropes with heavy racks. , ·, - the consistency of the parts achieves considerable • i i 'V. cost savings • · · · · · · · · · · · · · · · · · · · · · · · · · * · * * * * * * * * * * * * * * * * * * *; the uniformity of the wheel, the machine and the rope wheel reduces the number of parts • · «- although the invention is primarily intended for use in the engine room towers of elevators, it can be · · · · *. 30 is also applicable for use in engine room elevators ♦ **: - the invention can be applied in non-geared and alternate elevator motor solutions,, ·. - using the same machine, traction sheave and rope wheel * ··· * 35 entails significant cost savings • f 5 119242

The primary field of application of the invention is elevators for the transport of persons and / or goods. In addition, the primary area of application of the invention is in elevators having a speed range typically in passenger lifts of about 1.0 m / s or higher, but may, for example, be only about 0.5 m / s. Freight lifts also preferably have speeds of at least about 0.5 m / s, although slower speeds can be used at higher loads.

The invention will now be described in more detail by way of some embodiments with reference to the accompanying drawings, in which Figure 1 schematically shows an elevator made by the method of the invention, Figure 2 schematically shows another elevator made by the method Fig. 4 shows a traction sheave rope according to the invention, Fig. 5 shows another traction rope according to the invention, * · a V * Fig. 6 an embodiment of the invention: · · · i: 25.

Fig. 1 shows schematically the structure of the elevator.

Preferably, the elevator is a non-engine room elevator in which the drive mechanism 105 is disposed in the elevator shaft. The elevator shown in Fig. • · V. * is a traction sheave of the upper machine type: • tti 30. The lifting rope 103 of the lift passes as follows:. encountering:: **: 35 counterweight hanging rope pulleys 108 rotatably mounted on counterweight 102, and from which rope pulleys 108 rope rope 103 continues to extend upwards through rope groove 113 to drive unit 106, the rope of which extends over the traction sheave 5 . From the pulley 106, the rope 103 extends downwardly back to the rope pulley 113, which it rotates along the rope groove of the rope pulley, returning back up to the pulley 106, which rope crosses the traction sheave. From the traction sheave 106, the rope 103 extends 10 downwardly through the rope grooves of the rope pulley 113 to the elevator car 101 moving under the elevator ropes 109, lowering it along the roping wheels 104 hanging from the elevator car ropeway and then continuing from the elevator car

The rope rope between the traction sheave 106 and the rope pulley 113 is called the Douple Wrap rope, in which the rope is made to rotate the traction sheave two and / or more times. This allows the 20 gripping angles to be grown in two and / or more sections. For example, the grip angle between the traction sheave 106 and the hoisting rope 103 is obtained in the embodiment shown in Fig. 1 by 180 ° + 180 ° or 360 °. Figure 1 shows a preferred 2: 1 suspension. Other suspension solutions are also possible according to the invention. sa in an embodiment. The counterweight and the elevator car may also be suspended with the counterweight • · · l .. 'suspended at a suspension ratio n: l and the car suspended at a ratio m · l where m is an integer of at least 1 • * 1 and n is an integer and greater than m. The elevator shown in the figure • · · *. *. * has automatic telescopic doors, · · but, within the scope of the invention, the function Φ:. automatic or swing doors.

• · · • M · · * · * ... · Advantageously, the drive mechanism 105 • · * · 35 located in the elevator shaft is flat, i.e., slim in relation to its width and / or height, or at least slender so that it fits between the elevator car and the elevator shaft wall. The machine may be positioned in other ways, for example, such that the slender machine is partially or entirely between the imaginary extension of the elevator car and the shaft wall. It is advantageous to place in the elevator shaft the devices required for power supply to the motor rotating the drive wheel 106 and the devices necessary for controlling the elevator, both of which may be located on the common dashboard 107 or apart or partially integrated 10 or fully in the drive 105. The drive mechanism may be geared or non-geared.

Fig. 2 schematically shows another construction of an elevator. Preferably, the elevator is a non-engine room elevator in which the drive unit 205 is located in the elevator shaft. 15 The elevator shown in the figure is a top gear drive wheel elevator. The passage of the elevator hoisting rope 203 is as follows: At one end, the rope rope 203 is fixedly fixed at the top of the shaft in the counterweight guide lines 210 at anchorage point 211 above the movable counterweight 202, from which it exits downwardly facing ··· From the rope pulleys 208, the rope rope 203 continues to extend upward * through the rope grooves of the rope pulley 213 to the drive gear 206, which rope 203 exceeds the traction • 0 l “. down to the wheel rope groove. From the pulley 206, the rope 203 ♦ · continues downward to the rope pulley 213, which it • · * ··· * rotates along the rope groove of the rope pulley, returning back up to the pulley 206 whose rope crosses the traction sheave. From traction sheave 206, rope rope 203: ***: Continue downward through rope grooves of rope sheave 213 his- ···. \ sin in the guide rails 209 to the moving elevator car 201 ♦ · ♦ lowering it along the suspension ropes hanging on the elevator car rope 204 and then continuing from the elevator car 201: 35 upward to the elevator car rope 215 back to the elevator car 201, below its elevator car 8 119242, along rope pulleys 204 hanging to the ropeway to anchorage 212 to which rope 203 is fixedly attached at one end. Fig. 2 shows an elevator according to the invention with a suspension ratio of 4: 1. Other suspension solutions are also possible in the practice of the invention. The elevator shown in the figure has automatic telescopic doors, but other types of automatic doors or swing doors can also be used within the scope of the invention.

Preferably, the driving mechanism 205 disposed in the elevator shaft is flat, i.e., thin relative to its width and / or height, or at least slender so that it fits between the elevator car and the elevator shaft wall. As such, the machine may be positioned in other ways, for example, such that the slender machine is partially or completely between the imaginary extension of the elevator car and the shaft wall. It is preferable to place in the elevator shaft the devices required for power supply to the motor rotating the drive wheel 206, both of which may be housed in a common operator panel 207, or completely apart, or partially or fully integrated into the drive. 205 connection. The drive mechanism may be a gearbox «» ». ···. or gearless.

Fig. 3 schematically shows a rope according to the invention * «* 25. In the elevator, the rope extends upward from the machinery. Such an elevator is most often a submersible-to-second drive wheel elevator. The elevator car 301 and counterweight 302 · * · are suspended on the elevator hoisting rope 303. The elevator drive unit 306 is located in the elevator shaft, * · · 30 preferably in the lower part of the elevator shaft. In the vicinity of the drive unit * 1 * rope 306, a rope pulley 314, * *,, · · is attached which provides a sufficiently large gripping angle between the drive wheel 307 and the hoisting rope 303. The hoisting ropes are guided by rope wheels 304,305 at the top of the elevator shaft to rack 301 and counterweight 302. Ropes 304,305 at the top of the shaft 9119242 and preferably separately beared on the same shaft to rotate independently of one another. The elevator of Fig. 3 also applies, by way of example, Douple Wrap rope in a sub-machine elevator. The elevator car 5 301 and counterweight 302 move in the elevator shaft along the elevator and counterweight guide lines 310,311 guiding them.

The hoisting rope passage is as follows: At one end, the rope is attached to anchorage 312 at the top of the shaft, from where it exits downwardly to the counterweight 10 le 302. The counterweight is suspended on the rope 303 by rope wheel 309. The counterweight rope extends upwardly to the first rope and from the rope wheel 305 through the rope grooves of the rope wheel 314 to the traction sheave 307 driven by the drive mechanism 306. From the traction sheave, the rope extends upward to the rope pulley 304, from which it returns. after rotation, the hoisting rope passes through the rope pulleys 308 mounted above the elevator car, then proceeds further to the top of the elevator shaft! *: *: to the anchorage 313 where the hoisting rope is located ♦ * · *. end is attached. With rope wheels 308, the elevator •. ** ·. 25 ri is suspended from the hoisting rope 303. In the hoisting rope • · 303 one or more rope sections between the ropewheels and the ropes between the wheels and the traction sheave • · • «** · may deviate from the exact vertical • · · »» *. *. · 30 can be provided with sufficient mutual distance between different rope sections or sufficient lifting distance:. between the rope and other lift components. The propulsion wheel 307 and also the drive mechanism 306 are preferably * · * 1 * sideways of both the elevator car 301 and the counterweight 302 so that they can be easily positioned *: · *: in the elevator shaft at almost any height rope 10 119242 below wheels 304 and 305. If the machine is not directly under or over the counterweight or the elevator car, some savings can be made at the height of the elevator shaft. The minimum height of the elevator shaft is then determined only by the weight of the counter-5 and the movement paths of the elevator car and the safety distances required above and below them. In addition, the lower or upper space of the shaft may be left smaller due to the smaller diameter of the rope pulleys compared to the previous one depending on how the rope wheels are attached to the elevator car and / or the frame of the elevator car.

Figure 4 shows a rope according to the invention. In the rope shown in Fig. 4, the rope 401 passes through the rope grooves of the rope pulley 402 to the traction sheave 404 of the drive 403, which rope crosses along the traction sheave of the traction sheave. From the traction sheave 404, the rope 401 continues downwardly back to the rope sheave 402, which it rotates along the rope sheave of the rope pulley, returning upward to the traction sheave 404, which rope crosses the traction sheave 20 along the rope sheave. From the drive wheel 404, the rope assembly 401 continues downwardly through the rope wheel grooves. The pattern rope rope is a Douple Wrap rope in which • · · V: the rope is rotated two and / or more times on the drive wheel. This allows the grip angle to be increased in two and / or more sections. Rope wheel, ·. : at the same time acts as a damping wheel to smoothen the vibration of the ropes.

• · «· *

Figure 5 shows another rope rope according to the invention. In the rope shown in Fig. 5, the rope rope 30 501 passes through the rope grooves of the rope pulley 502 to drive it. the drive 503 for the drive wheel 504, the rope of which extends * * · "j4 * along the rope grooves of the drive wheel. From the drive wheel 504, the rope • · * ··· * 501 continues downwardly through the grooves of the rope wheel 502. ·; 35 rope rope, where the rope wheel acts as a trainer for ropes, or a trainer for vibrations.

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Figures 4 and 5 show a method for making an elevator according to the invention. In the method, the same machinery and the same traction and rope pulley can be used with both heavy and light elevator baskets by changing the rope 5. The angle of the rope pulley can be varied to advantageously cause the rope to cross.

Fig. 6 shows an embodiment of the invention, in which the elevator drive mechanism 601, together with a rope pulley 602, is mounted on a base 603 in a finished unit 604 which can be fitted as such into the elevator according to the invention. The unit 604 is pre-mounted on a platform 603 with elevator drive mechanism 601, traction sheave 605 and rope sheave 602, which are pre-arranged at the correct operating angle to each other 15 depending on the rope used between traction sheave 605 and rope sheave 602. The unit 604 may have more than just one rope pulley 602 or may have a drive mechanism 601 on the platform 603 only. The unit may be mounted on an elevator according to the invention in a manner similar to the drive mechanism, which is illustrated in greater detail above. :, · # Ϊ Both Douple Wrap and Single Wrap bindings can be attached to the unit as needed. By matching the above · * · *. unit shown as part of an elevator according to the invention can •. ···. This can save you a lot on installation costs and installation time.

• ·· • · ·· «

An advantageous solution is to build a complete unit with a platform mounted on both the elevator drive mechanism with traction sheaves and the * 30 rope pulley with bearings for proper operation ···. ·, At an angle to the drive wheel. The chassis controls the position and / or distance of the rope pulley • · ·: *: · and the traction sheave.

This unit can be mounted completely • · *. like a propulsion machine. The drive mechanism can be mounted on the elevator shaft wall, ceiling, ♦ ♦ guide or rails or other structure, such as a beam or frame. If the elevator were to be made as a sub-machine elevator, another mounting option is the floor of the elevator shaft.

It will be apparent to one skilled in the art that the various embodiments of the invention are not limited to the examples above, but may vary within the scope of the following claims. For example, how many times the hoisting rope runs between the top of the elevator shaft and the counterweight or elevator car is not very decisive for the basic advantages of the invention, although some additional advantages are obtained with the re-roped sections. Usually, applications should be made so that the rope passes no more than as often as the counterweight to the elevator car. It is also clear that the hoisting ropes 15 do not necessarily have to be carried underneath the car but may also be carried, for example, from the top of the car or onto the side of the car.

According to the examples described above, a person skilled in the art may vary the embodiment 20 of the invention with the drive wheels and ropes being coated with mate. ·. an uncoated metal wheel or * · 1 1, ··· # uncoated wheel made of other suitable material instead of a rial. It will also be appreciated that the metal traction wheels and rope wheels used in the inventive coating, at least with respect to the grooves in the wheels, may be coated with a non-metallic material. , .ί made of, for example, rubber, polyurethane or any other suitable material.

It will also be appreciated by those skilled in the art that pharmaceuticals may vary depending on the load and the intended use:: 1 :. It is also to be understood that the ··· · "'· rope according to the invention may be replaced by non-filler ropes, whether or not lubricated. They may be made in a variety of ways and may be thin or 13,119,242 in thickness or other, and of substantially circular or other cross-section.

It will also be apparent to one skilled in the art that the elevator car, counterweight and machining unit may be located in a cross section of the elevator beam other than as illustrated in the examples. Such another arrangement could, for example, be one in which the machine and counterweight are behind the body viewed from the shaft door and the passage of the rope under the body is arranged diagonally with respect to the bottom of the body. It is advantageous to use a diagonal or otherwise oblique rope undercut to make the suspension rope symmetric with respect to the center of mass of the lift in other types of suspension rounds.

15 * · * · * · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · • Φ Φ · • f f f f m m m m m m m m m m 1 m m 1 m 1 m 1 m m m m 1 1

Claims (10)

119242 A method of making an elevator, preferably a machine-free elevator, comprising at least an elevator car, a counterweight, hoisting ropes, an elevator machine, a traction sheave and a rope wheel, characterized in that the elevator is made with a Single Wrap or Douple Wrap rope. , to produce a uniform drive mechanism (105), a traction sheave (106) and a rope pulley 10 (113) for the elevator, and to select the rope according to the weight of the elevator car, the single lifts rope (103) the rope pulley (113) controls the ropes and dampens their vibrations, and for light lifts, the Douple Wrap rope is used, and that the hoisting ropes are roped according to said selection to said traction sheave and rope pulley. Method for making a lift according to claim 1, characterized in that the rope wheel is arranged to act as a damping wheel for lifting the elevator. ropes. The method of claim 1 for the elevator ♦ • * i *. , characterized in that • · · ''. ·· *. between the traction sheave (106) and the hoisting rope (103) • ♦. ·] · 25 obtains at least 180 °. «· · • * Method for making a lift according to Claim 1, characterized in that the hoisting ropes: Y: (103) are made of thin ropes of substantially circular cross section. ··· • '/ · / · 30 The method of making an elevator according to claim 1, characterized in that the elevator car and / or the ··· ..γ counterweight is suspended at a suspension ratio of 1: 1, 2: 1, • · * 3: 1, 4: 1 or even higher. • · 119242 The method of making a lift according to claim 1, characterized in that the drive unit is geared or non-geared. The method of making a lift according to claim 1, characterized in that the elevator is arranged to operate such that the platform on which the drive mechanism (105) with the drive wheel (106) and at least one rope wheel (113) is mounted controls the relative position of the rope wheel 10 and the drive wheel. / or distance. The method of making a lift according to claim 1, characterized in that at least the drive mechanism (105) of the elevator, the drive wheel (106) and the base 15 are arranged as a complete unit. A system for supplying an elevator, preferably a machine-free elevator, comprising at least light and heavy elevator car bodies, counterweights (102), hoisting ropes (103), elevator drive, traction sheave (106), and preferably also a close rope pulley (108); : · * · Known for delivering a lift with either a heavy lift or lightweight lift • · · Equipped with a drive unit (105), traction sheave (106) and rope 25 (108) and lifting rope (103) to be roped • · · * · ^ · Douple Wrap rope with lightweight lifting platform • «* ··· * and heavy lifting rope to Sing le Wrap rope with twisting rope • * ν, ί controls the ropes and: ***: 30 controls their vibrations. • · · Elevator delivery system according to claim 9, characterized in that the elevator machine assembly, V. whether or not the elevator car is light or heavy, the rope pulley (108) adjacent to the elevator • 119242 machinery is provided, and that the lift ropes (103) are arranged to travel in contact with the rope pulley adjacent to this elevator car. • 1 · 1 1 • • • 1 1 • • • • 1 1 • • • • • 1 1 • • • • • • • • • • • • • • • • • 1 · • 1 * · • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 1 «* • 1 · • · · • m • · 119242