CN102745578A - an elevator device - Google Patents

Abstract

The invention discloses a lift device, wherein two lift cars are driven continuously by a group of steel ropes to move up and down oppositely and share the common traction machine without utilizing a counter-weight system, so that a lift structure is simplified, size requirement to a lift well is greatly lowered, cost is saved. Furthermore, when the load of the lift cars is light (namely, few passengers) or two lift cars carry more passengers, tension difference between two steel ropes of the traction machine is quite small, and operation of the lift device is more stable than that of a traditional lift.

Description

an elevator device

the

technical field

The present invention relates to an elevator installation.

the

Background technique

Generally, an elevator is composed of the car, the counterweight, the guide rails of the car and the counterweight, and the traction machine. When two or more elevators are connected in parallel, these parts are often used in sets and are independent of each other. , which results in higher production costs and requires a larger elevator shaft size.

the

Contents of the invention

The object of the present invention is to provide an elevator installation comprising two cars, which does not require a counterweight system, reduces production costs and reduces the size of the elevator shaft.

In order to achieve the above object, the technical solution adopted by the present invention is: an elevator device, comprising two cars, a car frame supporting each of the car frames, and a car anti-sheave set on each of the car frames , a traction machine, a traction wire rope that goes around the traction sheave of the traction machine upwards, and the parts of the traction wire rope that are located on both sides of the traction machine respectively go down to the car counters of one of the cars. Sheave, the two ends of the traction steel wire rope after respectively bypassing the car anti-sheave of the two cars are arranged in the hoistway of the elevator through the rope head assembly.

Preferably, a compensation chain or a compensation rope is connected between the bottom of one car or car frame and the bottom of the other car or car frame.

During specific implementation, the two cars are respectively arranged in one of the hoistways, and the two hoistways where the two cars are located are arranged side by side or arranged at opposite angles.

During specific implementation, the door opening orientations of the two cars are the same or opposite or perpendicular. the

During specific implementation, there are two car reversing sheaves corresponding to each of the cars, and the center line of the two car reversing sheaves extends along the front, rear or left and right directions of the car, or The front and rear or left and right directions of the compartment are inclined to be set.

During specific implementation, the two cars are respectively arranged in one of the shafts, and the two shafts where the two cars are located are arranged at opposite angles, corresponding to the car anti-sheave of each of the cars There are two, the two car reversing sheaves are arranged at intervals along the diagonal direction of the car, the radial surface of each of the car reversing sheaves, the two car reversing sheaves The central connection lines all extend along the diagonal direction of the car. The diagonal direction of the car corresponds to the diagonal direction of the arrangement of the two hoistways. The door openings of the two cars face each other and face vertically. set up or opposite vertically.

During specific implementation, the two cars share a set of control systems.

During specific implementation, the elevator is an elevator with a machine room or an elevator without a machine room. the

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: in the elevator device, the two cars are driven by a group of continuous wire ropes to perform opposite lifting movements, and the two cars share a traction machine, no need to use the counterweight system, which simplifies the structure of the elevator, greatly reduces the size requirements of the elevator shaft, and saves costs; , the tension difference on the wire ropes on both sides of the traction machine is small, and the elevator runs more smoothly than the traditional elevator.

the

Description of drawings

Accompanying drawing 1 is the schematic front view of the first embodiment of the present invention;

Accompanying drawing 2 is the schematic top view of the first specific embodiment of the present invention, not showing the traction machine;

Accompanying drawing 3 is the schematic top view of the second specific embodiment of the present invention.

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Detailed ways

The structure of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1-3, a machine-room or machine-roomless elevator device includes two cars 2 and 3, a car frame (not shown in the figure) supporting each car, and is arranged on each car frame The car anti-rope pulley 7 (8), the traction machine 1, the traction wire rope 4 that bypasses the traction sheave 11 of the traction machine 1 upwards, and the traction wire rope 4 is located on both sides of the traction machine 1. Go around the car anti-rope pulley 7 (8) of a car 2 (3), and the traction wire rope 4 goes around the two ends of the car anti-rope pulleys 7 and 8 of the two cars 2 and 3 respectively. They are all arranged in the hoistway 6 of the elevator through the rope head assembly, so that the steel wire rope 4 realizes a traction ratio of 2:1. Driven by the traction machine 1, the wire rope 4 drives the two cars 2 and 3 to perform opposite lifting movements. In this elevator device, the two cars 2 and 3 are driven by a group of continuous wire ropes 4 to move up and down, and the two cars 2 and 3 share a traction machine and a control system without using a counterweight system, which simplifies The structure of the elevator is simplified, the size requirements of the elevator shaft are greatly reduced, and the cost is saved; and when the load of the car is small (that is, the number of passengers is small) or there are many passengers in both cars, the tension on the wire ropes on both sides of the traction machine The difference is smaller, and the elevator runs more smoothly than traditional elevators.

In Fig. 1, a compensation chain 5 or a compensation rope 5 is connected between the bottom of one car 2 or car frame and the bottom of another car 3 or car frame. The compensation chain or compensation rope balances the operation of the elevator by balancing the weight of the steel wire rope and the accompanying cable.

In Fig. 1-3, two cars 2 and 3 are respectively arranged in a hoistway 6; in Fig. Among them, two hoistways 6 are arranged at opposite angles. In other embodiments, the layout of the hoistway 6 can be adjusted according to the requirements of specific buildings. The door opening orientations of the two cars 2 and 3 can also be adjusted according to the layout of the shaft 6 or the requirements of the building. For example, the door opening orientations of the two cars 2 and 3 are the same or opposite or perpendicular of. Taking Fig. 2 as an example, the position where the car door 21 is located in the car 2 is defined as the front, the position where the car rear wall 22 is located is defined as the rear, and the positions where the car side walls 23 and 24 are located are defined as left and right, then in another In the embodiment described above, the position of the car door 21 can also be arranged at the rear portion and the left portion of the car. Similarly, in the car 3 of FIG. 2 , the position of the car door 31 can also be set at the rear portion, right part. Similarly, in Fig. 3, the position of car door 21 (31) also can be arranged on the car rear wall 22 (32) of car 2 (3), the position of car side wall 23 (33), 24 (34).

In Figure 1-3, there are two car anti-sheave pulleys 7 (8) corresponding to each car 2 (3), and the center line of the two car anti-sheave pulleys 7 (8) is along the car The front and rear or left and right directions of the car are extended, as shown in Figure 1-2, or it is inclined relative to the front and rear or left and right directions of the car, as shown in Figure 3.

In Fig. 3, the two hoistways 6 where the two cars 2 and 3 are located are arranged at opposite angles, and the two car anti-sheaves 7 (8) are arranged at intervals along the diagonal direction of the car 2 (3), The radial surface of each car anti-sheave 7 (8), the center connection line of two car anti-sheave 7 (8) all extend along the diagonal direction of car 2 (3), car 2, The diagonal direction of 3 corresponds to the diagonal direction of the arrangement of the two hoistways 6, and the door opening orientations of the two cars 2 and 3 are vertically arranged facing each other, as shown in Figure 3, or oppositely vertically arranged, which can be arranged according to specific requirements. to adapt.

the

Claims (8)

1. lift appliance; It is characterized in that: comprise two cars, support each said car the sedan-chair frame, be arranged on car diversion sheave on each said sedan-chair frame, towing machine, upwards walk around the traction steel-cable of the traction sheave of said towing machine; The part that this traction steel-cable is positioned at said towing machine both sides is walked around the car diversion sheave of a said car respectively downwards, and the both ends that this traction steel-cable is walked around respectively behind the car diversion sheave of said two cars all are arranged in the hoistway of elevator through the fag end assembly.

2. a kind of lift appliance according to claim 1 is characterized in that: said two cars are arranged in the same said hoistway.

3. a kind of lift appliance according to claim 1 is characterized in that: said two cars are arranged in the said hoistway, and two said hoistways at said two cars place are arranged side by side mutually or relative angle is arranged.

4. a kind of lift appliance according to claim 1 is characterized in that: the opening the door towards being identical or opposite or perpendicular of said two cars.

5. a kind of lift appliance according to claim 1; It is characterized in that: the car diversion sheave of corresponding each said car all has two; The line of centres of two said car diversion sheaves extends along the front and back or the left and right directions of car, and perhaps front and back or the left and right directions with respect to car is obliquely installed.

6. a kind of lift appliance according to claim 1; It is characterized in that: said two cars are arranged in the said hoistway; Two said hoistway relative angles at said two cars place are arranged; The car diversion sheave of corresponding each said car all has two, and two said car diversion sheaves are intervally arranged along the diagonal of car, and the line of centres of the radial surface of each said car diversion sheave, said two car diversion sheaves all extends along the diagonal of car; The diagonal of said car is corresponding with the diagonal that said two hoistways are arranged, and opening the door of said two cars is provided with perhaps back to vertical setting towards facing vertically mutually.

7. a kind of lift appliance according to claim 1 is characterized in that: the shared cover control system of said two cars.

8. a kind of lift appliance according to claim 1 is characterized in that: said elevator is organic machine room-free elevator or machine-roomless lift.

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