FI117336B - Machinery underlay for an elevator - Google Patents

Description

5, 117336

LIFT MACHINE BOARD

The invention relates to an adjustable elevator platform as defined in the preamble of claim 1.

The present invention relates primarily to an elevator with an engine room or similar space in which the elevator hoisting machine and at least a portion of the impellers are disposed on a platform or 10 mounted in the engine room or elevator shaft.

Typically, in prior art solutions, said positioning is made on a fixed machine base, which is provided with mounting holes or corresponding mounting points 15, as appropriate, according to the size of the machine and the dimensions of the elevator car and counterweight. The machine base can be, for example, two parallel Ι-beams or U-beams, on which all the necessary components, such as lifting gear, diverting pulleys 20 and rope attachment solutions, are mounted separately.

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The problem with these known solutions is a lot of time • * · / *: a cumbersome and complicated installation with a lot of features, including: dimensioning and adjustment work. Another problem is ·: ··; 25 due to the complexity of the design and the large amount of design and adjustment work. In addition, the well-known • · ·. · **. solutions require a lot of elevator delivery • design and delivery, which. contributes to additional costs and time.

Japanese Patent Publication JP7061744 (Otis Elevator Co.) discloses one known way of locating elevator lift machinery and part of the diverting wheels in the elevator engine room. The solution is • · · *. at the top, the traction sheave from which the first end of the elevator rope '* 35 enters the elevator car. Correspondingly, the other end of the lift rope • * «· * • 9 2 117336 descends above the diverting pulley to the counterweight. The diverting pulley is secured to the machine base below the level of the traction sheave by means of two beams having in the vertical wall portion of the beams an elongated, substantially horizontal adjustment opening in which the diverting pulley is supported. The folding wheel can then be displaced horizontally with respect to the position of the drive wheel. In addition, the solution includes a tensioner wheel, which is positioned both vertically and horizontally between the traction sheave and the diverting pulley above the hoisting rope 10. The purpose of the tensioning wheel is to tighten the lifting ropes in the direction of the drive wheel to prevent the lifting ropes from slipping. US 2003/0155188 Ai A modular machine base for an elevator comprising a frame structure, an engine part and a counterweight.

From US 5148893 A is known a modular adjustable machine platform of an elevator comprising a frame structure, an engine part and a counterweight part. JP 4-20480 A discloses a lifting platform for an elevator in which a diverting wheel is disposed between the machining part and the counterweight part 20.

. . The problem with the above solution is that the tension wheel • · ψ '** ·] is so high with respect to the diverting pulley that the portion of the rope between the tension pulley «· ·' ·” and the diverting pulley is · «» 25 in an oblique position. In this case, the angle of the rope section in question changes according to the lateral position of the impeller, i *, which makes adjustment work especially difficult during installation.

Another problem is maintaining friction between the drive wheel and the hoisting rope.

• 30 * ··· * Elevator ropes have been made thinner and * ·· * stronger in construction, which has also made it possible to reduce the diameter of traction sheaves and pulleys: \ i. This has led to e.g. that it has been possible to implement • m m 35 higher hanging ratios than before, for example 3: 1-7: 1 #. ·,; and even bigger. The high suspension ratio results in * * · • · 3 117336 correspondingly the need for a large number of folding wheels, which have been difficult to optimize in many solutions. For example, the so-called. In double-wrap solutions in which the elevator ropes rotate the traction sheave at least 5 times, the rope includes an additional diverting pulley which is difficult to position at right angles to the traction sheave position in prior art elevator hoisting machine arrangements. Doublewrap solution is needed eg. 10 on the traction sheaves with coatings to increase frictional traction between the traction sheave and the elevator rope. The use of multiple pulleys has increased the complexity of the installation work as the measurement and adjustment work during installation has increased. Prior art solutions do not know a workable solution to this problem.

The object of the present invention is to eliminate the aforementioned disadvantages and to provide an inexpensive, adjustable machine base 20 which is also inexpensive and enables quick and error-free installation, which also allows easy installation in pre-fabricated structures, e.g.

i · t J

• ·: '. Ej during modernization and ensures a smooth frictional grip between the • • hoisting rope and the drive wheel.

* ** 25 Advantage of the adjustable machine base of the elevator according to the invention * * · * ». ···. is mm. the fact that rope spacing adjustment can be done reliably * easily and quickly because rope angles do not adjust. ·. context change. In this case, the mechanism for the arrangement ropes * 9 *, ···. the associated structure is always the same regardless of the horizontal distance between the elevator car [· '30] and the counterweight. There is also the advantage of '· a standard fastening solution that can be installed on existing machine rooms in conjunction with the modernization of the lift *: * ·:. In addition, the machine base according to the invention can be used with a variety of elevator carts and counterweights of 4,117,336. The adjustable machine base of the invention is characterized in what is disclosed in the characterizing part of claim 1. Similarly, other embodiments of the invention are characterized by what is set forth in the other claims.

Inventive embodiments are also disclosed in the specification of this application. The inventive content contained in the application may also be defined otherwise than in the claims below. The inventive content may also consist of several separate inventions, particularly if the invention is considered in the light of the express or implied subtasks or the benefits or classes of benefits achieved. In this case, some of the attributes contained in the claims below may be redundant for individual inventive ideas. Aspects of various embodiments of the invention may be applied in conjunction with other embodiments within the scope of the inventive concept.

The invention will now be described in more detail by way of an exemplary embodiment with reference to the accompanying drawings, in which: Fig. 1 is a side elevational view and a partially sectioned view of a machine base according to the invention. Fig. 2 is a top view of the machine base of Fig. 1 * *,. . ·. Fig. 3 shows the machine base of the invention, · · · ···, side view of the frame, * * / 30; Fig. 4 shows the top structure of Fig. 3, · ·, • Fig. 5 shows the base of the invention, · Fig. 6 is a side view of the machine part of the machine base according to the invention, Fig. 7 is a side view of the machine base according to the invention, Fig. 8 is a side view of the machine part of the invention. 7 is a schematic and simplified side elevational view of the machine platform and rope arrangement of the invention in a 4: 1 10 suspended elevator.

Figures 1 and 2 show a side elevational view and a partially sectioned view of one adjustable elevator platform 5 according to the invention. The machine platform 5 is disposed in the machine room 1 of the elevator 15 and is secured in place to the floor 2 of the engine room 1 with at least passageways 3 and 4 for the elevator hoisting ropes 18. The adjustable machine platform 5 is modular so that the machine platform 5 has at least three modular machine part 7 and counterweight part 8. All of the main parts mentioned: Y: 6-8 are designed to be as standard as possible, * * f ·, · to fit as many different lift sizes as possible. The drive unit 7 and counterweight 8 are • Ift can be mounted to the frame structure 6 at the right position • * 25 by means of mounting bolts. Preferably, the attachment is carried out * · · *. ···. such that the counterweight 8 does not always engage at or immediately at the first end of the frame * structure 6. /. proximity and the engine part 7 is secured with the required * * * • · ·. ···. at a horizontal distance from the counterweight portion 8 to one end of the frame structure * * 30 or to another location between the other end and the counterweight portion 8 • * *. Said horizontal distance is defined by * ♦ * ·; · * the horizontal distance between the counterweight and the elevator car, ie ·; · *: rope clearance.

• ψ • 9 9 9 99 9 9 6 117336

In addition to Figures 1 and 2, the frame structure 6 of the machine base 5 is illustrated in Figures 3 and 4. The frame structure 6 is a circular, rectangular structure consisting essentially of, for example, U-shaped profile beams whose beams web is substantially upright. In Figure 1, the front side member 26 of the frame structure is partially cut to reveal the structures behind the beam. The inwardly pivoted upper flange of each of the side beams 26 of the frame structure 6 has a plurality of mounting holes 21 disposed on the upper flange at regular intervals for securing the machine part 7 and the counterweight part 8 to the frame structure. The side beams 24 are connected to each other at the ends of the side beams by transverse recesses 27 and 28.

15

In addition to Figures 1 and 2, the structure of the modular drive member 7 is illustrated in Figure 6. The frame of the drive member 7 consists of lower side panels 24 and transverse beams 20 connecting the side panels. The side panels 24 are L-shaped with a shorter pivot pointing outwards. The width of the housing body 7 is dimensioned * * * * · * · * such that the housing is disposed between the side members 26 of the frame base 6 of the machine base so that the outwardly flanged flanges of the side panels 24 rest on the torn surface of the side members 26. The outwardly flanged flanges of the side-plates 24 • S · are also provided with substantially «« i *. ** ·. evenly aligned with the mounting holes 25 in the row, some of which may be round and some elongated to facilitate finding a suitable mounting location for the machine part 7.

* * * IV. The size and distribution of the mounting holes 25 correspond to the size and distribution of the mounting holes 21 of the machine base i · * ·· **.

A #: ***: On the other side of the body of the machine part 7 is attached a vertical bar 31, at the top of which the elevator is mounted, a drive unit having at least a drive wheel in addition to the engine. Aa 7 117336, and in many embodiments also a diverting wheel 13 directly under the traction sheave. The traction sheave remains behind the engine in said figure, so it does not appear in figures other than Figure 9, where it is denoted by 35.

5

On the counterweight part 8 of the body 7 of the body part 7, i.e. at the first end of the body, is mounted the impeller 11 of the body part by means of its mounting base 32. The attachment of the pulley 11 is accomplished such that the elevator rope 18 which descends from the traction sheave 10, which actually comprises a plurality of thin parallel ropes, descends substantially vertically to the rope groove of the pulley 11 from the machine side 7 and extends below

15

Correspondingly, at the other end of the body part 7 of the machine part 7, the additional folding wheel 15 required for the 4: 1 suspension is attached by means of its mounting ring. The attachment ring of the auxiliary impeller consists of two vertical beams 34 and the upper beams 33 connecting them, to which the auxiliary impeller 15 is suspended. The attachment ring of the auxiliary impeller is viewed in an oblique position relative to the longitudinal direction 6 • »\ V of the body part 7, so that the rotation plane of the auxiliary impeller 15 can also be adjusted to an oblique position: ***: 25 to facilitate rope passage.

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Further, the first * * * '* ends of the elevator hoisting ropes 18 are fastened in a conventional manner by means of rope fasteners 17 to the upper beam 33 of the attachment wheel of the drive unit.

30 * ··· * All of the above main parts of engine part 7, i.e. i ** lifting machine 9, diverting wheel 11, auxiliary diverting wheel 15 and; ·· β · rope clamps 17 are permanently fixed in place to the body of the part 7 and to the frame • « * · * 35 relation. In this way, the machine part becomes a modular, * '· 4 * 4 I · * · 117336 s integrated structure that can be attached to its correct location as one unit.

In addition to Figs. 1 and 2 5, the structure of the counterweight part 8 is also illustrated in Figure 5. The body of the counterweight part 8 consists of lateral plates 22 at the lower part and a transverse support 19 connecting the side plates. Thus, the side plates 22 of the counterweight part 8 also have a profile, when viewed from the front, in the form of an inverted L-letter, with the shorter leg pointing outwards. Similarly, the width of the body of the counterweight part 8 is dimensioned such that the body is disposed between the side beams 26 of the frame 6 of the machine base 15 so that the outwardly flanged flanges of the side discs 22 rest on the torn upper surface of the side beams. The outwardly flanged flanges of the side plates 22 are also provided with substantially evenly spaced mounting holes 23 in a row, the size and distribution of which corresponds to the mounting holes 21 of the machine base frame.

♦ · * · · «« «

At the end of the body of the counterweight part 8 on the machine side 7 ♦ *, ···. secured by a transverse support 19 to the diverting wheel 12 of the counterweight portion 25. The attachment and positioning of the diverting wheel 12 is * · implemented such that the elevator rope 18 from the diverting wheel 11 of the machining section rotates over the upper section of the diverting wheel .

It is essential for the invention that the elevator rope 18 is horizontal between the diverting pulleys 11 and 12, so that when the mutual distance between the diverting pulleys 11 and 12 changes, the rope angles on the diverting pulleys 11 and 12 do not change.

* il • · ♦ ·· · ’· myös * * The counterweight part 8 also has a 4: 1 35 additional suspension counterbalance wheel 14: \ j mounted on its body by means of its mounting ring. The retaining ring 9 117336 of the auxiliary impeller 14 consists of two vertical beams 30 and a connecting beam 29 on which the auxiliary impeller 14 14 is suspended. The attachment ring of the auxiliary impeller 14, viewed from above, is substantially perpendicular to the longitudinal direction of the body 6 of the machine part 5 7. In addition, the other ends of the elevator hoisting ropes 18 are fastened in a conventional manner by means of rope fasteners 16 to the upper beam 29 of the attachment ring of the counterweight part 14.

All of the above-mentioned main parts of the counterweight part 8, i.e. the diverting pulley 12, the auxiliary diverting pulley 14 and the positions of the rope fasteners 16 are permanently fixed in place to the body of the counterweight part 8 relative to each other and the frame. In this way, the counterweight part forms a modular, integrated structure that can be attached to its correct position as one unit.

Figures 7 and 8 show a machine platform 5 according to the invention placed in an elevator, wherein the horizontal clearance between the counterweight and the elevator car 20 is lower than in the solution of Figures 1 and 2. In this case, the counterweight part 8 is in the same position with the frame structure 6 as in the solution of Figures 1 • · * ***** and 2, but the engine part 7 is moved »» · '* "closer to the counterweight part 8 and secured * * * ·· ** 25 suitable for the frame structure by means of fixing bolts.

* 'Installing engine room components is easy because * • · · * · .ί rope angles and rope directions remain constant regardless of the location of the * * # · · ... ... * engine section. The relative position of the counterweight part 8 and the engine part 7 does not change in any respect other than 30 with respect to their horizontal position, nor does the change cause any change in the rope angles.

• · «· · • ·« • ·. ···. Figure 9 is a schematic and simplified representation of • • f *. 9 is not drawn on a scale or, for example, in the correct elevation, so that the position of the counterweight 37 relative to the position of the elevator car 40 may not be correct. Preferably, the elevator is an engine-driven traction sheave with counterweight, running along guide rails 5, in which the hoisting rope consists of a plurality of parallel hoisting ropes 18 which are substantially rigid and of a thin diameter. In addition, the used pulleys and the drive wheel are substantially small in diameter, whereby also preferably the gearless gear mechanism 9 is substantially small in size and light.

In Fig. 9, the elevator hoisting rope passage is as follows: the rope extends upward to the impeller impeller 15 of the engine section.

20 After rotating the top of the auxiliary impeller 15, the rope returns downward to the Y-impeller 41 fitted into the elevator car body frame 39, which, when lowered, · · lifts upward into the engine room * ·. ·· *. for the fitted drive mechanism 35 of the hoisting machine 9 preferably by tapping the diverting wheel 13 located near and / or in contact with the hoisting machine 9 below the driving wheel 35 9 *.

• R «« «9 *

Between the diverting wheel 13 and the traction sheave 35 of the hoisting machine 9, a DW (Douple wrap) rope is shown, in which the rope 18 passes the diverting pulley 13, tapping upwards on the traction sheave 35 and the traction sheave 35. : after turning it returns to flywheel 13, which after turning • 4 «9 ♦. ·· * lifting rope returns to drive wheel 35. Douple Wrap - 9 •. in the rope, with the diverting wheel 13 being substantially * * 35 the same size as the traction sheave 35, the diverting wheel 13 may also act as a damping wheel. In this case, the ropes from the drive wheel 35 to the elevator car 40 pass through the rope grooves of the pulley 13 and the deflection caused by the pulley 13 to the rope is very slight. It could be said that the ropes going from and to the traction sheave 5 35 to the elevator car only "tangle" the diverting wheel 13. Such "tangling" acts as a damping solution for the outgoing ropes and is also applicable in other rope solutions.

10 As an example of other rope solutions, a Single Wrap (SW) rope may be mentioned, in which the diverting pulley is substantially the same size as the drive pulley and in which the use of the diverting pulley as the "tangling wheel" is applied. In the SW rope according to the example 15, the rope rotates the drive wheel only once, whereby the gripping angle of the rope is about 180 ° from the drive wheel. In this case, the diverting wheel is only used to aid in "tangling" the rope as described above, wherein the diverting wheel acts as a guide for the rope and as a damping wheel for damping vibrations.

20 • a

From the traction sheave 35, the rope continues its downward movement • a: / ·· the sheave 13 tapping the drive part on the sheave 11, aaa fitted on the chassis 5a "**: mounted on the lower part 25 of the sheave 11, the rope 18 continues horizontally the rope 18 being rotated upwardly by the ropeway continues to travel downward on the ratchet wheel 42, which is preferably fitted to the counterweight 37, and the rope 18 after rotating the underside of the ratchet wheel 42 continues upwards to the counterweight portion 14 of the ratchet wheel after rotating the upper end, it continues to travel downwardly to the counterweight • * 37 for the diverting pulley 36. Underneath the diverting pulley 36 • · *. *: After rotating, the rope assembly 18 eventually rises to the fixed anchorage 16 in the counterweight section 8 12 117336.

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. Thus, for example, the machine base of the invention may be of a different structure to implement different suspension variations and ratios.

Likewise, one skilled in the art will recognize that the size, position and number of pivoting wheels mounted on the machine base 5 may vary from the foregoing. The essential feature is a standardized machine base structure having, for example, three main members, i.e. frame 6, engine 7 and counterweight 8 with each other, so that the horizontal distance between the engine part and the counterweight part can be adjusted to different lengths 20 as required, so that the rope angles remain constant regardless of the rope spacing.

It is also obvious to a person skilled in the art that the counterweight part 8 ····· with its pivoting wheels 12 may be an integral part of the frame structure 6.

25 In this case, the counterweight part is not attached separately to the frame structure during installation, but the frame structure is • »positioned in the correct position in the engine room. with respect to the counterweight and to the frame structure, only • t · the engine part 7 is attached to the rope at a distance 5 ...: 30 from the diverting pulley 12.

w 9 9 9 · 9 9 9 ·,! ·· 'It will also be apparent to one skilled in the art that, although the suspension described in the example above has a counterweight, the invention or its preferred applications may equally well be used. also in the counterweight tower on the traction sheave lifts, as well as other suspension ratios and other types of suspension and different rope arrangements between the traction sheave and the pulleys 13 as shown in Example 5.

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Claims (6)

117336 An adjustable lifting platform (5) for a lift in a lift with lifting mechanism (9) and lifting ropes (18), wherein lifting rope (18) moves the rails (43) along the lifting car (40) and comprising at least a modular frame structure (6). ) and a machine part (7) to be attached to more than one location relative to the frame structure (6), characterized in that in addition to the frame structure (6) and the engine part (7), the machine base includes at least a counterweight part (8) (6), and that at least one diverting pulley (11) is disposed in the drive part (7) and at least one diverting pulley (12) is disposed in the counterweight part (8) respectively, so that under the diverting pulley (11) the rotating elevator hoisting rope (18) extends substantially horizontally from the diverting pulley (11) to the diverting pulley (12), over which the diverting pulley (12) is arranged to rotate system. 20 Machine platform (5) according to Claim 1, characterized in that the machine part (7) is a modular, integrated unit of structure 9 99 9 9 having at least a lift mechanism (9) for the lift and at least one impeller (11). ), 25 and that the counterweight part (8) is of modular construction, M ··. ··, an integrated assembly having at least one deflection wheel (12). * * * · • * · · · · · ·, · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 30 Power trays (5), characterized in that the frame structure 9 9 9 that both the mechanical * ·; ** part (7) and the counterweight part (8) have securing holes (23 and 25) substantially corresponding to the size and spacing of the mounting holes • 9 9 9 9 9 9 9 9 9 117336 (21). Machine platform (5) according to one of the preceding claims, characterized in that the counterweight part (8) is preferably fastened to the end of the frame structure (6) and that the machine platform (7) is fastened to the upper surface of the frame structure (6) the counterweight part (8). 10 Machine platform (5) f according to one of the preceding claims, characterized in that, depending on the rope suspension, the machine part (7) further comprises at least one or more auxiliary pivoting wheels (15) attached to the upper beam (33) of its mounting ring. in addition, the first ends of the lifting ropes (18) are fastened. A machine platform (5) according to any one of the preceding claims, characterized in that, depending on the rope suspension, the counterweight part (8) further comprises at least one or more auxiliary pivoting wheels (14) attached to the upper beam (14). 29), to which the other .III: 25 ends of the lifting ropes (18) are additionally attached. a a a * · · * * * «aa • a • a« aa * • * «a a a • ·« • «· a« a aa a * a a a a a · a · a a a a a a a aa aa a 1 1 7336 PATENTKKAV