Elevator rope winding structure

Abstract

The utility model relates to the technical field of elevators, and discloses an elevator rope winding structure including: a car, at least one set of top wheel assemblies is arranged on the top of the car; a counterweight device, at least n sets of counterweight wheel assemblies are arranged on the top of the car, n≥2; a main wheel, rotatably arranged on the top of the elevator shaft; m sets of counterweight guide wheels, rotatably arranged on the top of the elevator shaft, and located above the counterweight device, m=n‑1; a steel wire rope, which sequentially passes around the top wheel assembly, the main wheel, the counterweight wheel assembly and the counterweight guide wheel; wherein the steel wire rope first passes around one set of the counterweight wheel assemblies, and then passes around one set of the counterweight guide wheels, and cross-winds in sequence. By increasing the number of counterweight wheel assemblies, the rope winding ratio of the counterweight device is greater than the rope winding ratio of the car, and at this time, the side space at the lower part of the shaft is free space, thereby increasing other usable areas in the building interior.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator rope winding structure. Background Art

[0002] At present, most of the elevators on the market are wire rope or steel belt traction structures, that is, the wire rope goes from the car guide wheel at the end of the car, around the main pulley of the main engine, and then around the counterweight wheel of the counterweight. This type of structure is relatively stable and safe, and has low energy consumption. According to the rope winding method, it can usually be divided into 1:1, 2:1, 4:1, and in some cases 6:1 and 8:1. This type of structure increases the load capacity by winding the wire rope around multiple sets of movable pulleys, but the speed will be reduced proportionally. In this regard, the corresponding counterweight requires a larger hoistway space.

[0003] In actual scenarios, for home elevators, the shaft space is often small. If a larger shaft space is designed, it will inevitably occupy other indoor spaces. Figure 1 As shown, the existing rope winding structure has the same travel distance between the car and the counterweight device, that is, the entire shaft needs to reserve space for the car and the counterweight device. Utility Model Content

[0004] Based on the above, the purpose of the utility model is to provide an elevator rope winding structure, which can free up the space at the bottom of the elevator shaft by changing the winding method, thereby increasing other usable areas in the building.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides an elevator rope winding structure, comprising:

[0007] A car, the top of which is provided with at least one set of top wheel assemblies;

[0008] A counterweight device, with at least n sets of counterweight wheel assemblies arranged on the top, n ≥ 2;

[0009] A main wheel, rotatably arranged at the top of the elevator shaft;

[0010] m sets of counterweight guide wheels, rotatably arranged at the top of the elevator shaft and located above the counterweight device, m=n-1;

[0011] A steel wire rope is passed through the top wheel assembly, the main wheel, the counterweight wheel assembly and the counterweight guide wheel in sequence;

[0012] Wherein, the steel wire rope first passes around one group of the counterweight wheel assemblies, and then passes around one group of the counterweight guide wheels, and is cross-wound in sequence.

[0013] Optionally, two groups of top wheel assemblies are provided.

[0014] Optionally, the top wheel assembly includes two groups of first mounting plates fixedly arranged on the top of the car, and a top wheel is rotatably arranged between the two groups of first mounting plates.

[0015] Optionally, the counterweight wheel assembly is provided in two groups, and the counterweight guide wheel is provided in one group.

[0016] Optionally, the counterweight wheel assembly includes two groups of second mounting plates fixedly arranged on the top of the counterweight device, and a counterweight wheel is rotatably arranged between the two groups of second mounting plates.

[0017] The beneficial effects of the utility model are:

[0018] The utility model provides an elevator rope winding structure, which increases the number of counterweight wheel assemblies so that the rope winding ratio of the counterweight device is greater than the rope winding ratio of the car. For example, when the counterweight rope winding ratio is 4:1 and the car rope winding ratio is 2:1, when the main wheel rotates, the speed of the counterweight device is half of the car, that is, the stroke of the counterweight device is half of the car stroke. At this time, the counterweight device only needs half the space in the height direction. At this time, the side space at the lower part of the hoistway is free space, increasing other usable areas in the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0020] Figure 1 It is an elevator rope winding structure of the prior art;

[0021] Figure 2 An elevator rope winding structure is provided in an embodiment of the utility model.

[0022] In the figure:

[0023] 1. Main wheel; 2. Elevator shaft; 3. Car rope end device; 4. Car; 5. Counterweight rope end device; 6. Counterweight device; 7. Top wheel assembly; 8. Counterweight wheel assembly; 9. Counterweight guide wheel; 10. Wire rope; 11. Free space at the bottom of the shaft. DETAILED DESCRIPTION

[0024] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0028] like Figure 2As shown, the embodiment of the utility model provides an elevator rope winding structure, including: a car 4, both sides of the car 4 are slidably arranged on the car guide rails, which is a prior art and is not redundant here; at least one set of top wheel assembly 7 is arranged on the top, and preferably, two sets of top wheel assembly 7 are arranged; the top wheel assembly 7 includes two sets of first mounting plates fixedly arranged on the top of the car 4, and a top wheel is rotatably arranged between the two sets of the first mounting plates. A counterweight device 6, at least n sets of counterweight wheel assemblies 8 are arranged on the top, n≥2; a main wheel 1 is rotatably arranged on the top of the elevator shaft 2; m sets of counterweight guide wheels 9 are rotatably arranged on the top of the elevator shaft 2 and located above the counterweight device 6, m=n-1; preferably, two sets of counterweight wheel assemblies 8 are arranged, and one set of counterweight guide wheels 9 is arranged. Optionally, the counterweight wheel assembly 8 includes two sets of second mounting plates fixedly arranged on the top of the counterweight device 6, and a counterweight wheel is rotatably arranged between the two sets of the second mounting plates. The steel wire rope 10 has its two ends respectively connected to the top of the elevator shaft 2, specifically, connected to the top of the elevator shaft 2 through the car rope end device 3 and the counterweight rope end device 5 respectively; it passes around the top wheel assembly 7, the main wheel 1, the counterweight wheel assembly 8 and the counterweight guide wheel 9 in sequence; wherein, the steel wire rope 10 first passes around one group of the counterweight wheel assemblies 8, and then passes around one group of the counterweight guide wheels 9, and is cross-wound in sequence.

[0029] The embodiment of the utility model provides an elevator rope winding structure, by increasing the number of counterweight wheel assemblies 8, so that the rope winding ratio of the counterweight device 6 is greater than the rope winding ratio of the car 4. For example, when the counterweight rope winding ratio is 4:1 and the car 4 rope winding ratio is 2:1 in the embodiment of the utility model, when the main wheel 1 rotates, the speed of the counterweight device 6 is half of the car 4, that is, the stroke of the counterweight device 6 is half of the stroke of the car 4. At this time, the counterweight device 6 only needs half the space in the height direction. At this time, the side space at the lower part of the hoistway is an empty space, that is, the empty space 11 at the lower part of the hoistway. When a new elevator hoistway 2 is built, this space can give way to the room, which maximizes the use area of ​​the building.

[0030] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An elevator rope winding structure, characterized in that: include: A car (4) having at least one set of top wheel assemblies (7) disposed on the top; A counterweight device (6) having at least n sets of counterweight wheel assemblies (8) arranged on the top thereof, where n≥2; A main wheel (1) is rotatably arranged at the top of the elevator shaft (2); m sets of counterweight guide wheels (9), rotatably arranged at the top of the elevator shaft (2) and located above the counterweight device (6), m=n-1; A steel wire rope (10) is passed around the top wheel assembly (7), the main wheel (1), the counterweight wheel assembly (8) and the counterweight guide wheel (9) in sequence; The steel wire rope (10) first passes around one group of the counterweight wheel assemblies (8), and then passes around one group of the counterweight guide wheels (9), and is cross-wound in sequence, so that the rope winding ratio of the counterweight device is greater than the rope winding ratio of the car, thereby reducing the space occupied by the counterweight device in the height direction.

2. An elevator rope winding structure according to claim 1, characterized in that: The top wheel assembly (7) is provided in two groups.

3. An elevator rope winding structure according to claim 2, characterized in that: The top wheel assembly (7) comprises two groups of first mounting plates fixedly arranged on the top of the car (4), and a top wheel is rotatably arranged between the two groups of first mounting plates.

4. An elevator rope winding structure according to any one of claims 1 to 3, characterized in that: The counterweight wheel assembly (8) is provided in two groups, and the counterweight guide wheel (9) is provided in one group.

5. An elevator rope winding structure according to claim 4, characterized in that: The counterweight wheel assembly (8) comprises two sets of second mounting plates fixedly arranged on the top of the counterweight device (6), and a counterweight wheel is rotatably arranged between the two sets of the second mounting plates.

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