HK1116460B - Elevator with carrier and traction means - Google Patents

Description

The invention relates to an elevator with a lifting cabin and counterweight, which are connected by at least one support and are moved up and down by at least one propellant, and the propellant is driven by a drive unit as defined in the independent claim.

The patent GB 1 027 714 describes a lift in which the lifting cabin is connected to the counterweight by means of a weighted load carried by means of a rolling coil. The lifting cabin or counterweight is moved up and down by means of a separate propulsion device, which attaches to the top of the counterweight, is guided by an upper and lower rolling coil and attaches to the bottom of the counterweight. The propulsion device can also attack the lifting cabin instead of the counterweight. A drive unit drives the propulsion device.

Another example is known as EP-A-1367017.

A disadvantage of the known devices is that an additional propellant is provided to power the counterweight and the lifting cab.

The purpose of the invention is to solve this problem by avoiding the disadvantages of the known device and creating a lifting device in which the load-bearing equipment and the propellant are separated and only one propellant is used.

Beneficial continuing training of the invention is indicated in the dependent patent claims.

The advantages of the invention are mainly that modern propellants such as belts, artificial fibre ropes (e.g. aramid ropes), double ropes (e.g. two artificial fibre ropes with a common coat) or coated steel ropes can be used, drives or peripheral coils with smaller diameters, because smaller bending radii are allowed. Modern propellants are, however, more expensive than conventional steel ropes. However, with the device according to the invention, it is still possible, especially with large conveyor increases, to realize a cost-effective lift. This is achieved by dividing the propellant into two parts, namely, a propellant part and a spindle part, whereby the two parts are connected by means of a spindle.

The device of the invention consists of a lifting cab and a counterweight connected by at least one support and propelled up and down by at least one propellant, the propellant being driven by a drive unit drivable drive shaft and the propellant being composed of a propellant and a clutch, the parts being of different types.

The figures in the attached table give a detailed explanation of the present invention.

It shows: The following table shows the figures: a lift with load-bearing equipment and a counterweighted propellant,Figure 2 a lift with load-bearing equipment and a propellant attached to a lift cab,Fig. 3 a lift with a 2:1 load bearing and a 1:1 propulsion flow,Fig. 5 and Fig. 6 The main difference between the two is the number of a double-rocker as propellant.

Fig. 1 shows an elevator with a 1:1 load and propulsion flow. A lift cabin 2 which can be operated in a lift shaft 1 is connected to a counterweight 4 by at least one lift cabin 3 and counterweight 4 are guided by means of guide rails not shown. A first winding coil 5 and a second winding coil 6 ensure the necessary rope line spacing SA between lift cabin 2 and counterweight 4.

The lifting cab 2 or counterweight 4 is moved up and down by at least one of the propulsion devices 7 separated from the load carrier 3. The propulsion device 7 attaches to the upper end of the counterweight 4 at one end, is guided by a drive 8 and a third coil 9 and attaches to the lower end of the counterweight 4 at the other end. A drive 10 drives the drive. The third coil 9 is located in a shaft pit 11.

The propellant 7 consists of a propellant 12 and a clutch 13, the parts 12.13 being of different construction and connected by a propellant connection 14. The propellant 12 attaches at one end to the upper end of counterweight 4, is guided by the drive disc 8 and is connected to the propellant connection 14 at the other end.

The 12th drive is made up of belts (e.g. flat belts or wedge-ribbed belts), artificial fibre ropes (e.g. aramid ropes), double ropes (e.g. two artificial fibre ropes with a common coat) or coated steel ropes.

In the 1:1 load and propellant flow shown in Figure 1, the drive shaft 8 moves the same number of metres of propellant 7 as the lifting cab 2 or counterweight 4 moves up or down.

As shown in Figure 2, propellant 7 can also attack the lifting cabin 2 instead of counterweight 4.

Figure 3 shows a machine-free lift with load-bearing equipment 3 and counterweighted propellant 4 7.

Fig. 4 shows a lift with a 2:1 load-bearing rate and a 1:1 propellant rate. The one and the other ends of the lift 3 are each fixed at a non-represented rope fixing point. The lift 3 is guided over a rolling coil at the lift cabin 2 and over a rolling coil at counterweight 4. The forces in the lift 3 are halved at the 2:1 load-bearing rate shown. The structure and mode of action of the propellant 7 corresponds to the device as shown in Fig. 1.

Fig. 5 and Fig. 6 show details of the propellant connection 14. The propellant part 12 encloses at least one first cone 21 arranged in a housing 20, with the dividing end 22 attached to the propellant by means of the first brackets 23. In the example shown, the propellant part 12 consists of a belt. The clamp part 13 encloses at least one second cone 24 arranged in the housing 20, with the dividing end 25 attached to the clamp part 13 by means of the second brackets 26. In the example shown, the clamp part 13 consists of two ropes. Housing 20 provides an opening 27 through which a double passage 2 can be used. The double bridges 28 can be removed by means of a screw connecting at least 29 to 20 housing. The D28 connects to the clamp part 20 by means of a double feed, which prevents loading of 20 to 20 housing.

In another embodiment, the drive unit may be located in the shaft pit or on the side of the shaft pit. The third drive coil is provided instead of the third drive coil and the third drive coil is provided instead of the drive coil. The clutch part is provided instead of the drive part and vice versa.

In particular, in the case of lifts with a large lifting height, a balancing rope may be provided between the lifting cab and the counterweight.

Fig. 7 shows a double strand 40 as a drive 12. The double strand 40 consists of a first strand 41 and a second strand 42, with the strings 41.42 surrounded by a common mantle 43, with the mantle 43 having a buckle 44 or a dock 44 between the strings 41.42. Each strand 41.42 consists of several strings 45, which are made of several non-represented artificial fibres. The strings 45 are twisted against each other, with the twisting direction of the first strand 41 being opposite to the twisting direction of the second strand 42, which neutralizes the untwisting forces in the dock 44.

According to the cross-section of the hood shown in bold, the surface of the drive shaft 8 or the housing 20 and the first wedge 21 of the propellant connection 14 are formed to accommodate the double-axle 40.

Claims (4)

1. Lift having a lift car (2) which can be moved in a lift shaft (1), and having a counterweight (4) which can be moved in the lift shaft (1), wherein the lift car (2) and counterweight (4) are connected by means of at least one carrier means (3) and can be moved up and down by means of at least one traction means (7), characterized in that the traction means (7) comprises:

   a traction part (12) which is guided over a traction pulley (8) which can be driven by means of a drive unit (10); and

   a tensioning part (13) which is guided over a deflection roller (9),

   wherein the traction part (12) and the tensioning part (13) act at one end on the lift car (2) or on the counterweight (4) and are connected at the other end to a traction-means connection (14), and wherein the parts (12, 13) are of different types.
2. Lift according to Claim 1, characterized in that the traction part (12) acts at one end on the upper end of the counterweight (4) and is guided over the traction pulley (8), and is connected at the other end to the traction-means connection (14), and in that the tensioning part (13) acts at one end on the lower end of the counterweight (4) and is connected at the other end to the traction-means connection (14).
3. Lift according to Claim 1 or 2, characterized in that the traction-means connection (14) has a housing (20), in which at least one wedge (21) for fixing the traction part (12) and at least one wedge (24) for fixing the tensioning part (13) are provided.
4. Lift according to Claim 3, characterized in that a double shackle (28) which can be inserted via an opening (27) of the housing (20) is provided for fixing the wedges (21, 24).