HK1064355C - Positioning of a driving machine for elevators - Google Patents

Description

The present invention relates to a lifting system and a method for arranging a propulsion machine of a lifting system as defined in the claims.

A lift system in which a propulsion machine moves a cabin and counterweight over a drive line and which does not require a separate engine room is known from the utility model JP-50297/1992. Two vertical columns in the form of self-supporting U-profiles serve as a guide for the cabin and counterweight. The columns are completed at their upper end with a horizontal cross section on which the propulsion machine is mounted.

The patent EP-1045811 shows a lifting system in which a traverse carrying the propulsion engine is attached to a total of four cab and counterweight guides. In this way, the entire vertical force of the propulsion engine, cab and counterweight is directed and supported exclusively via these guides to the shaft floor. Cheap, conventional guides are used.

The present invention is intended to provide a lifting system with a flexible arrangement of the drive machine. The drive machine is to be largely freely selectable throughout the shaft area above the cabin and counterweight. The drive machine is to be space-saving and small in size.

This task is solved by the invention as defined in the claims.

The invention relates to a lifting system with a cab and counterweight and a shaft. It consists of a drive unit mounted on a traverse. The traverse is attached to at least one counterweight guide by means of two end segments and is attached to at least one cab guide by means of a middle segment.

The two counter-weight guides and a cabin guide span a largely horizontal triangle in the shaft. The drive is of a longer and more compact shape.

This triangular symmetrical arrangement of the leads effectively absorbs the forces of gravity of the drive and bending moments occurring during the operation of the drive and is directed through the traverse and the leads to the shaft floor. The drive can be arranged in the area of this triangle either largely above the counterweight and/or largely above the cabin. This flexibility in the arrangement of the drive is made possible by the size and shape of the traverse and/or the number of conveyor coils used and/or the type of propeller used.

The following illustrations of the invention are given in detail by means of exemplary embodiments as shown in Figures 1 to 10. Fig. 1a schematic representation of the triangular arrangement of the leads of a lifting system,Fig.2a perspective view of part of a first example of the arrangement of a gearless drive in 2:1 suspension and in the vertical projection above the counterweight,Fig.3a schematic projection of part of the first example of the arrangement of the drive in Fig. 2,Fig.4a schematic view of part of the first example of the arrangement of the upper drive in 2:1 suspension or in vertical cable according to Fig. 2 and 3,Fig. 5a schematic view of part of a second example of the arrangement of the drive in 2:1 suspension and/or in a 2:1 projection,Fig.Fig. 5A schematic view of part of the second example of the arrangement of the propulsion engine in 2:1 suspension according to Fig. 5,Fig. 7A schematic view of part of a third example of the arrangement of a propulsion engine without gear in 2:1 suspension and in the vertical projection above the cab,Fig. 8A schematic view of part of a third example of the arrangement of the propulsion engine in 1:1 suspension according to Fig. 7 above,Fig. 9A schematic view of part of a fourth example of the arrangement of a propulsion engine with gear in 2:1 suspension and in the vertical projection above the cab,Fig. 10A and 2:1 suspension according to Fig. 10A.9 .

Fig. 1 shows a schematic representation of the triangular arrangement of the 5, 5', 9, 9' leads of an elevator system. The elevator system is arranged, for example, in a largely vertical shaft 10. The shaft 10 has, for example, a rectangular cross-section with four walls. In the shaft, cabin leads 5, 5' and counter-weight leads 9, 9' are arranged, for the most part, vertically. Two cabin leads lead to a cabin 11 and two counterweight leads to a counterweight 12. The leads are mounted on adjacent walls. The two cabin leads 9, 9' and a first cabin lead 5' are mounted on a first wall. The second cabin leads 5' are mounted on a second wall. The second cabin leads are mounted on a second wall. The first cabin leads 5' and 9' are mounted on a second wall.

The two counter-weight guides 9, 9' and one of the two cab guides 5, 5' each span a largely horizontal triangle T in shaft 10. The horizontal connector between the two counterweight guides forms a first side of the triangle T. The horizontal connectors between a counterweight guideline and a cab guideline form the second and third sides of the triangle T. The advantage is that the horizontal connector of the counterweight guides is longer than a horizontal connector of the cab guides, so that a triangle T consisting of three 9, 9' leads of the first wall has a horizontal angle equal to one of the horizontal connections of the three 9, 9' leading cables, or that a triangle spins horizontally opposite the horizontal connections of the first 9' leading cables and a 9' leading cables, so that the first 9' leads are opposite the horizontal connections of the two 9' leading cables.

Figures 2 to 10 show a drive unit 1, 2, 3, 3`, 4, 40 with two drives 3, 3′ on. The advantage is that the drives 3, 3′ are connected via a shaft 4 to a motor 1 and a brake 2. The advantage is that the motor and brake are located at two end points of the shaft and the drives are located between the motor and brake in a central area of the shaft. A control and/or a transformer of the lifting system is located in a switchgear 6 mainly on a wall in this shaft 10. In the configurations shown in Figures 2 to 8, the drive unit is wavy and oblong, i.e. it is seen in the plane of the drive unit to the drive unit, 4 axes through the drive unit. The length of the drive unit is also shown as a 40 mm.

It is preferable to have two drives 3,3' symmetrical, left and right of a horizontal connector of the cab guides 5,5'.

The propulsion engine, which is arranged largely horizontally in the shaft, moves the cabin and counterweight in the shaft via at least one propellant 19, 19' connected to each other. The propellant has two ends 18, 18'. The propellant is a rope and/or a belt of any nature. The load-bearing areas of the propellant consist of metal such as steel and/or plastic such as aramid. The rope can be a single or multiple rope, the rope can also have an external protective shell of plastic. The belt can be flat and unstructured from smooth or structured e.g. in wedge strips or toothed rims.

Each end of the propellant is either attached to a shaft wall/shaft ceiling and/or a cabin guide and/or a counterweight guide and/or a traverse 8 and/or to the cabin and/or counterweight. Preferably, the ends of the propellant are attached by elastic intermediate elements to dampen body noise. The intermediate elements are e.g. spring elements that prevent the transmission of unapproved vibrations from the propellant into the shaft wall/shaft ceiling and/or cabin and/or counterweight guide and/or/or/or cabin and/or counterweight. Several examples of fixations of the end propellant are distinguished: In the embodiments shown in Figures 3 and 4, a first 18' end of the propellant is attached to the shaft wall/shaft ceiling and/or to the cabin line 5' and a second 18' end of the propellant is attached to the shaft wall/shaft ceiling and/or to the cabin line 8 and/or to the cabin line 5.In the embodiments shown in Figures 5 and 6 and 9 and 10, one or both 18' end of the propellant is attached to the shaft wall/shaft ceiling and/or to the cabin line and/or to the cabin line 5.In the embodiment shown in Figures 7 and 8, a first 18' end of the propellant is attached to the cabin line 11 and a second 18' end of the propellant is attached to the counterweight.

The following examples show that two drives move two propellants by adhesive thrust. If the person skilled in the art is familiar with the present invention, he may also use other propulsion machines and other methods of propulsion than shown in the examples.

Several exemplary embodiments of enclosures are distinguished: In the first embodiment according to Figures 2 to 4, in the second embodiment according to Figures 5 and 6, and in the fourth embodiment according to Figures 9 and 10, the cab and counterweight are suspended 2:1. In the 2:1 suspension of the cab 11 several rolls 13, 13', 14, 14' are mounted on the cab 11; in the 2:1 suspension of the counterweight 12 at least one roll 17, 17' is mounted on the counterweight 12. The advantage is that the drive machine is located in a region far above the upper upper span of the cab cab cables of the projection line, i.e. in the vertical projection above the upper third of the main projection line.

Fig. 2 shows a perspective view of a part of a first example of the arrangement of a gearless drive 1, 2, 3, 3', 4. The drive is mounted on the traverse 8 which is arranged largely horizontally in shaft 10. The traverse is e.g. a longitudinal square made of proven materials such as steel. In this first example the traverse is attached to the counterweight guides 9, 9' and to the cabin guide 5 of the first wall.

The advantage is that the drive unit is mounted on the mid-range of the traverse. For example, the console is mounted on the traverse 8 via feet 7.5, 7.6. The console consists of a flat edge or square edge of proven materials such as steel and is mounted on the traverse via screw connections. The advantage is that the drive unit is mounted on the brake console via an engine housing and a motor housing.

The traverse 8 is attached at least to the angles of the triangle T. It is advantageous to have the traverse 8 with two end-sections on the counter-weight guides 9, 9' and with the middle section it is laterally attached to at least one cab guides 5, 5'.

Several exemplary embodiments of cross-sectional fasteners are distinguished: In the example shown in Figures 2 to 4 - where the propulsion engine is located in a region largely above the counterweight's travel - the traverse 8 is attached to the counterweight guides 9, 9' and to the cabin guide 5 of the first wall, which is closest to the counterweight guides 9, 9' and to the cabin guide 5. The traverse is in the shape of a rectangle.In the example shown in Figures 5 to 10 - where the propulsion engine is located in a region largely above the counterweight's and/or cabin's travel - the traverse 8 is attached to the cabin guide 5 of the first wall and/or to the cabin guide 5' of the second wall.The traverse has a straight line in the shape shown in Figures 5 to 8 or a straight line with a three-way line and a straight line in the opposite direction.

The console 7 and the drives 3, 3' are conveniently located in a central area of the triangle T. The console is conveniently located in the middle area of the traverse. For example, in the first example, as shown in Fig. 2, the 7.5, 7.6 feet of the console 7 are mounted on the traverse 8 on either side of the cabin line 5, 5' and at a distance of approximately the same distance from the cabin line 5, 5'.

The drive machine can thus be arranged on the surface of the triangle T either largely above the counterweight and/or largely above the cabin.

For example, in the example shown in Fig. 2 the first console mount 7.1 absorbs the forces of the engine 1 and the second console mount 7.2 absorbs the forces of the brake 2. The two console mount 7.1, 7.2 also absorb the forces of the drives 3.3'.

The examples of Figures 5 to 8 show that, where at least one rolling coil 15, 15', 16, 16' is provided above the counterweight and/or largely above the cabin, the forces from this rolling coil 8 can also be absorbed by the traverse. The advantage is that this rolling coil is fixed to the traverse 8 or console 7. The advantage is that pairs of rolling coils 15, 15', 16, 16' are symmetrically arranged to the left and right of the horizontal connecting rods of the cabin leads 5, 5'. The number and position of the rolling coils also allows for some flexibility in the arrangement of the drive on the area of the tricycle. In particular, a high degree of flexibility in the use of the special drive is possible, avoiding the need for costly and flexible adjustments in the use of the standard drive.

Claims (11)

1. Lift installation with cage (11) and counterweight (12) in a shaft (10), with a drive engine (1, 2, 3, 3', 4, 40) mounted on a crossbeam (8), which crossbeam (8) is fastened to two counterweight guides (9, 9') and to a cage guide (5), characterised in that the drive engine (1, 2, 3, 3', 4, 40) is gearless and that the crossbeam (8) is fastened by way of each of two end regions to a respective counterweight guide (9, 9') and by a centre region to the cage guide (5) and that the two counterweight guides (9, 9') and the cage guide (5) are fastened to a first wall.
2. Lift installation according to claim 1, characterised in that the drive engine comprises two drive pulleys (3, 3') and that the drive pulleys are operatively connected by way of a shaft (4) with a motor (1) and a brake (2) and/or that the drive pulleys are arranged at the left and right of a horizontal connector of the cage guides.
3. Lift installation according to claim 2, characterised in that the drive pulleys are arranged between motor and brake on the shaft and/or that the drive engine is fastened by way of a motor housing and a brake housing to a support and/or that the drive pulleys are arranged substantially in a region within an enclosure of the support.
4. Lift installation according to one of claims 1 to 3, characterised in that the counterweight guides and the cage guide span a substantially horizontal triangle (T) and the crossbeam is fastened at the apices of the triangle.
5. Lift installation according to one of claims 1 to 4, characterised in that the cage guides and counterweight guides are arranged substantially vertically in the shaft and/or that the crossbeam is arranged substantially horizontally in the shaft and/or that the drive engine is arranged substantially horizontally in the shaft.
6. Lift installation according to one of claims 1 to 5, characterised in that the drive engine is mounted by way of the support (7) at the crossbeam and that the support is mounted at the centre region of the crossbeam.
7. Lift installation according to one of claims 1 to 6, characterised in that at least two drive means move the cage and the counterweight, that each drive means has two ends and that each of the ends of the drive means is fixed to a shaft wall or shaft ceiling, to the counterweight guide, to the cage guide, to the crossbeam, to the counterweight or to the cage.
8. Lift installation according to one of claims 1 to 7, characterised in that at least two drive means move the cage and the counterweight and that the drive means are belts.
9. Lift installation according to one of claims 1 to 8, characterised in that the cage is suspended 2:1 and the drive engine is arranged in a region above the travel path of the counterweight, that the cage is suspended 2:1 and the drive engine is arranged in a region substantially above the travel path of the cage, that the cage is suspended 2:1 and the drive engine is arranged in a region above the travel path of the counterweight and the cage or that the cage is suspended 1:1 and the drive engine is arranged in a region substantially above the travel path of the cage.
10. Method of arranging a drive engine (1, 2, 3, 3', 4, 40) of a lift installation, with a cage (11) and a counterweight (12) in a shaft (10), which drive engine is fastened on a crossbeam (8) to two counterweight guides (9, 9') and to at least one cage guide (5, 5'), characterised in that the crossbeam is fastened by way of each of two end regions to a respective counterweight guide and by a centre region to the cage guide and that the two counterweight guides (9, 9') and the cage guide (5) are fastened to a first wall.
11. Method according to claim 10, characterised in that the drive engine has two drive pulleys (3, 3') arranged to the left and right of a horizontal connector of the cage guides.