Rope winding structure of elevator with winding ratio of 4: 1

Abstract

The rope winding structure comprises a main machine, a steel wire rope, a lift car frame and a counterweight frame, the steel wire rope is arranged on the main machine, one end of the steel wire rope is connected with the lift car frame, the other end of the steel wire rope is connected with the counterweight frame, and a lift car diversion sheave and a guide wheel are arranged at the position, lower than the main machine, over the lift car frame. The guide wheel is arranged on the side close to the main machine, the lift car frame is provided with a top wheel, a steel wire rope at one end of the main machine sequentially penetrates through the guide wheel, the top wheel and the guide wheel and then is fixed to the position, between the lift car diversion sheave and the top wheel, of the lift shaft wall through a lift car rope hitch plate, and a counterweight diversion sheave is arranged at the position, lower than the main machine, over the counterweight frame. A counterweight wheel is arranged on the counterweight frame, and a steel wire rope at the other end of the main machine sequentially penetrates through the counterweight wheel and the counterweight diversion sheave and then is fixed to the outer side wall of the elevator shaft through a counterweight rope hitch plate. The device is simple and reasonable in overall structure, practical, convenient, safe, efficient and stable.

Description

Technical Field

[0001] This utility model belongs to the field of elevator rope winding technology, and relates to a rope winding structure for an elevator with a winding ratio of 4:1. Background Technology

[0002] An elevator is a vertical lifting machine powered by an electric motor, equipped with a box-shaped cabin, used for transporting people or goods in multi-story buildings. A typical elevator structure uses a 4:1 winding ratio, with the main engine usually located in the machine room and the car top wheels arranged horizontally. However, due to diverse customer needs, many require long and slender cars. Since the shaft load of the main engine has a significant impact on its cost and is inconvenient to construct, using a 2:1 or 1:1 structure would drastically increase the cost of the main engine.

[0003] Therefore, the existing rope winding structure of the 4:1 elevator was improved, and a new rope winding structure of the 4:1 elevator was designed to overcome the above problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a rope winding structure for an elevator with a winding ratio of 4:1 that is simple, reasonable, practical, convenient, safe, efficient and stable.

[0005] This utility model is achieved through the following technical solution: a rope winding structure for a 4:1 elevator, comprising a main unit, a steel wire rope, a car frame, and a counterweight frame. A steel wire rope is mounted on the main unit, with one end connected to the car frame and the other end connected to the counterweight frame. The car frame and counterweight frame are arranged horizontally below the main unit. A car anti-rope pulley and a guide pulley are respectively mounted on the elevator shaft wall at a height lower than the main unit. The anti-rope pulley and guide pulley are respectively installed on the elevator shaft wall, with the guide pulley being higher than the elevator shaft wall. The car anti-cord sheave and guide sheave are located on the side near the main unit. At least one top sheave is installed in the car frame. The wire rope at one end of the main unit passes through the guide sheave, top sheave, and car anti-cord sheave in sequence and is fixed to the elevator shaft wall by the car rope head plate between the car anti-cord sheave and top sheave. The counterweight anti-cord sheave is installed directly above the counterweight frame at a height lower than the main unit. At least one counterweight sheave is installed in the counterweight frame. The wire rope at the other end of the main unit passes through the counterweight sheave and counterweight anti-cord sheave in sequence and is fixed to the outer wall of the elevator shaft by the counterweight rope head plate.

[0006] Preferably, the car frame consists of an upper car frame beam, a lower car frame beam, a car frame straight beam, and a car frame lower beam. The upper car frame beam and the lower car frame beam are arranged vertically. The upper car frame beam is connected to both ends of the lower car frame beam via connecting straight beams at both ends. The two ends of the lower car frame beam are connected to both ends of the bottom car frame lower beam via car frame straight beams. An upper car top pulley is installed between the upper car frame beam and the lower car frame beam at the center position directly below it. A lower car top pulley is installed at the center position directly below the lower car frame beam. The wire rope passes through the guide pulley, the lower car top pulley, the car anti-rope pulley, and the upper car top pulley in sequence and is then fixed to the elevator shaft wall via the car rope head plate.

[0007] Preferably, the counterweight frame consists of an upper counterweight beam, a straight counterweight beam, and a lower counterweight beam. The two ends of the upper counterweight beam are connected to the two ends of the lower counterweight beam through the straight counterweight beam. A left counterweight wheel and a right counterweight wheel are installed directly below the two sides of the upper counterweight beam. The wire rope passes through the left counterweight wheel, the counterweight reverse rope wheel, and the right counterweight wheel in sequence, and is then fixed to the elevator shaft wall above the counterweight frame through the car rope head plate.

[0008] Preferably, the diameter of the lower car top pulley is larger than that of the upper car top pulley, and the diameter of the car anti-rope pulley is between that of the lower car top pulley and the upper car top pulley, so as to ensure that the wire rope passing through the upper car top pulley and the lower car top pulley is vertical and does not interfere.

[0009] Preferably, the height of the car rope head plate is flush with the top height of the counterweight reverse rope sheave, and the height of the counterweight rope head plate is higher than the height of the car rope head plate but lower than the height of the main unit.

[0010] Preferably, the height of the car rope head plate, counterweight reverse rope pulley, guide pulley, car reverse rope pulley, and counterweight rope head plate are all higher than the floor height of the machine room.

[0011] The beneficial effects of this utility model are as follows:

[0012] The rope winding structure of the elevator with a winding ratio of 4:1 designed in this utility model has two sets of upper beams installed on the top of the car frame straight beam, namely the upper car frame upper beam and the lower car frame upper beam, and a set of lower car frame lower beam installed at the bottom. Two car top wheels are respectively set below the upper car frame upper beam and the lower car frame upper beam, arranged vertically. When the car width is small, a 4:1 rope winding method is achieved, which saves elevator costs and increases the elevator load capacity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0014] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1 As shown, a rope winding structure for a 4:1 winding ratio elevator includes a main unit 1, a steel wire rope 2, a car frame 3, and a counterweight frame 4. The steel wire rope 2 is mounted on the main unit 1, with one end connected to the car frame 3 and the other end connected to the counterweight frame 4. The car frame 3 and the counterweight frame 4 are arranged horizontally below the main unit 1. A car deflector sheave 5 and a guide sheave 6 are respectively installed above the car frame 3 at a height lower than the main unit 1. The car deflector sheave 5 and the guide sheave 6 are mounted on the elevator shaft wall, with the guide sheave 6 being higher than the car deflector sheave 5. The guide wheel 6 is located on the side near the main unit 1. At least one top wheel is provided in the car frame 3. The wire rope at one end of the main unit 1 passes through the guide wheel 6, the top wheel, and the car anti-rope wheel 5 in sequence, and is then fixed to the elevator shaft wall by the car rope head plate 7 between the car anti-rope wheel 5 and the top wheel. The counterweight anti-rope wheel 8 is provided directly above the counterweight frame 4 at a height lower than the main unit 1. At least one counterweight wheel is provided in the counterweight frame 4. The wire rope 2 at the other end of the main unit 1 passes through the counterweight wheel and the counterweight anti-rope wheel 8 in sequence, and is then fixed to the outer wall of the elevator shaft by the counterweight rope head plate 9.

[0017] The car frame 3 consists of an upper car frame upper beam 10, a lower car frame upper beam 11, a car frame straight beam 12, and a car frame lower beam 13. The upper car frame upper beam 10 and the lower car frame upper beam 11 are arranged vertically. The upper car frame upper beam 10 is connected to both ends of the lower car frame upper beam 11 through connecting straight beams 21 set at both ends. The two ends of the lower car frame upper beam are connected to both ends of the bottom car frame lower beam through the car frame straight beam 12. An upper car top wheel 14 is installed between the upper car frame upper beam 10 and the lower car frame upper beam 11 at the middle position directly below the upper car frame upper beam 10. A lower car top wheel 15 is installed at the middle position directly below the lower car frame upper beam 11. The wire rope 2 passes through the guide wheel 6, the lower car top wheel 15, the car anti-rope wheel 5, and the upper car top wheel 14 in sequence and is then fixed to the elevator shaft wall through the car rope head plate 7.

[0018] The counterweight frame 4 consists of an upper counterweight beam 16, a straight counterweight beam 17, and a lower counterweight beam 18. The two ends of the upper counterweight beam 16 are connected to the two ends of the lower counterweight beam 18 via the straight counterweight beam 17. A left counterweight pulley 19 and a right counterweight pulley 20 are installed directly below the two sides of the upper counterweight beam 16, respectively. The wire rope 2 passes sequentially through the left counterweight pulley 19, the counterweight counter-rotating pulley 8, and the right counterweight pulley 20, and is then fixed to the elevator shaft wall via the car rope head plate 7, located directly above the counterweight frame 4. The diameter of the lower car top pulley 15 is larger than that of the upper car top pulley 14, and the diameter of the car counter-rotating pulley 5 is between that of the lower car top pulley 15 and the upper car top pulley 14, ensuring that the wire rope 2 passing through the upper car top pulley 14 and the lower car top pulley 15 is vertical and does not interfere with each other. The height of the car rope head plate 7 is flush with the top of the counterweight counter-rotating pulley 8, and the height of the counterweight rope head plate 9 is higher than the height of the car rope head plate 7 but lower than the height of the main unit 1. The heights of the car rope head plate 7, counterweight reverse rope sheave 8, guide wheel 6, car reverse rope sheave 5, and counterweight rope head plate 9 are all higher than the floor height of the machine room.

[0019] The rope winding structure of the elevator with a winding ratio of 4:1 designed in this utility model has two sets of upper beams installed on the top of the car frame straight beam, namely the upper car frame upper beam and the lower car frame upper beam, and a set of lower car frame lower beam installed at the bottom. Two car top wheels are respectively set below the upper car frame upper beam and the lower car frame upper beam, arranged vertically. When the car width is small, a 4:1 rope winding method is achieved, which saves elevator costs and increases the elevator load capacity.

[0020] The working process of this utility model is as follows:

[0021] like Figure 1 As shown, the wiring diagram of the steel wire rope on the left side of the main unit is as follows:

[0022] The wire rope 2 passes through the guide wheel 3, enters the lower car top wheel 9, goes around the lower car top wheel 9, enters the car reverse rope wheel 4, goes around the car reverse rope wheel 4, enters the upper car top wheel 7, goes around the upper car top wheel 7, and is then fixed on the car rope head plate 5.

[0023] The wiring diagram of the steel wire rope on the right side of the main unit is as follows:

[0024] The wire rope 2 enters the left counterweight pulley 12, passes around the left counterweight pulley 12, enters the counterweight reverse rope pulley 17, passes around the counterweight reverse rope pulley 17, enters the right counterweight pulley 16, passes around the right counterweight pulley 16, and is then fixed to the counterweight rope head plate 18.

[0025] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A rope winding structure for a 4:1 elevator, comprising a main unit (1), a wire rope (2), a car frame (3), and a counterweight frame (4), wherein the wire rope (2) is mounted on the main unit (1), one end of the wire rope (2) is connected to the car frame (3), and the other end is connected to the counterweight frame (4), characterized in that: The car frame (3) and counterweight frame (4) are respectively arranged in a left-right arrangement below the main unit (1). A car anti-rope sheave (5) and a guide wheel (6) are respectively installed above the car frame (3) at a height lower than the main unit (1). The car anti-rope sheave (5) and guide wheel (6) are respectively installed on the elevator shaft wall, and the guide wheel (6) is higher than the car anti-rope sheave (5). The guide wheel (6) is located on the side closer to the main unit (1). At least one top wheel is installed inside the car frame (3). The main unit (1)... The steel wire rope at one end passes through the guide wheel (6), the top wheel and the car counter-rope wheel (5) in sequence, and is then fixed to the elevator shaft wall by the car rope head plate (7) between the car counter-rope wheel (5) and the top wheel. The counterweight counter-rope wheel (8) is set at a position directly above the counterweight frame (4) at a height lower than the main unit (1). At least one counterweight wheel is set inside the counterweight frame (4). The steel wire rope (2) at the other end of the main unit (1) passes through the counterweight wheel and the counterweight counter-rope wheel (8) in sequence, and is then fixed to the outer wall of the elevator shaft by the counterweight rope head plate (9).

2. The rope winding structure of the 4:1 winding ratio elevator according to claim 1, characterized in that: The car frame (3) consists of an upper car frame upper beam (10), a lower car frame upper beam (11), a car frame straight beam (12), and a car frame lower beam (13). The upper car frame upper beam (10) and the lower car frame upper beam (11) are arranged vertically. The upper car frame upper beam (10) is connected to both ends of the lower car frame upper beam (11) through connecting straight beams (21) at both ends. The two ends of the lower car frame upper beam are connected to the bottom of the car frame lower beam through the car frame straight beams (12). The two ends of the beam (13) are connected. An upper car top wheel (14) is installed between the upper car frame upper beam (10) and the lower car frame upper beam (11). A lower car top wheel (15) is installed between the upper car frame upper beam (11) and the lower car frame upper beam (11). The steel wire rope (2) passes through the guide wheel (6), the lower car top wheel (15), the car anti-rope wheel (5) and the upper car top wheel (14) in sequence and is then fixed to the elevator shaft wall by the car rope head plate (7).

3. The rope winding structure of the 4:1 winding ratio elevator according to claim 1 or 2, characterized in that: The counterweight frame (4) consists of a counterweight upper beam (16), a counterweight straight beam (17), and a counterweight lower beam (18). The two ends of the counterweight upper beam (16) are connected to the two ends of the counterweight lower beam (18) through the counterweight straight beam (17). A left counterweight wheel (19) and a right counterweight wheel (20) are installed directly below the two sides of the counterweight upper beam (16). The wire rope (2) passes through the left counterweight wheel (19), the counterweight reverse rope wheel (8), and the right counterweight wheel (20) in sequence, and is then fixed to the elevator shaft wall directly above the counterweight frame (4) through the car rope head plate (7).

4. The rope winding structure of the 4:1 winding ratio elevator according to claim 2, characterized in that: The diameter of the lower car top wheel (15) is larger than that of the upper car top wheel (14), and the diameter of the car anti-rope wheel (5) is between that of the lower car top wheel (15) and the upper car top wheel (14), in order to ensure that the wire rope (2) passing through the upper car top wheel (14) and the lower car top wheel (15) is vertical and does not interfere.

5. The rope winding structure of the 4:1 winding ratio elevator according to claim 4, characterized in that: The height of the car rope head plate (7) is level with the top height of the counterweight reverse rope sheave (8), and the height of the counterweight rope head plate (9) is higher than the height of the car rope head plate (7) and lower than the height of the main unit (1).

6. The rope winding structure of the 4:1 winding ratio elevator according to claim 5, characterized in that: The heights of the car rope head plate (7), counterweight reverse rope wheel (8), guide wheel (6), car reverse rope wheel (5), and counterweight rope head plate (9) are all higher than the floor height of the machine room.

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