Elevator traction device

Abstract

The invention provides an elevator traction device, and belongs to the technical field of elevators. The elevator traction device comprises a hoistway and a steel belt. A driving device is installed on the outer side of the bottom of the shaft, a first pulley and a second pulley are installed on one side of the top of the shaft and the bottom of the shaft respectively, a lift car is arranged in the shaft, a third pulley and a fourth pulley are installed on the top of the lift car and the bottom of the lift car respectively, and the top end of the steel belt is connected with the side, away from the first pulley, of the shaft. The other end of the steel belt sequentially bypasses the third pulley, the first pulley, the driving end of the driving device, one second pulley, the fourth pulley and the other second pulley and is connected with the inner side of the bottom of the hoistway. The driving device is installed on the side face of the bottom of the hoistway, so that the requirement of the lift car with the same height for the height of the top layer is greatly reduced, and normal elevator installation can be conducted under the condition that the height of the top layer is not enough.

Description

Technical Field

[0001] This application relates to the field of elevators, and more particularly, to an elevator traction device. Background Art

[0002] As the mainstream of elevators, traction elevators generally have a counterweight device. The counterweight device can relatively balance the weight of the car, but has large energy consumption, high cost, and the counterweight device occupies a certain area of the hoistway, resulting in low utilization rate of the hoistway. Existing counterweightless elevators can improve the utilization rate of the hoistway. However, generally, the driving device of the counterweightless elevator is installed at the top of the hoistway. But in a specific environment, especially when the total installation floor is low and the top floor height is low, it is inconvenient to install the driving device. Summary of the Invention

[0003] To make up for the above deficiencies, this application provides an elevator traction device, aiming to improve the problem that the driving device of the counterweightless elevator is installed at the top of the hoistway, but in a specific environment, especially when the total installation floor is low and the top floor height is low, it is inconvenient to install the driving device.

[0004] An embodiment of this application provides an elevator traction device, including a hoistway and a steel belt.

[0005] A driving device is installed on the outer side of the bottom of the hoistway. A first pulley and a second pulley are respectively installed on one side and the bottom of the top of the hoistway. A car is arranged inside the hoistway. A third pulley and a fourth pulley are respectively installed on the top and the bottom of the car. The top end of the steel belt is connected to the side of the hoistway away from the first pulley. The other end of the steel belt sequentially bypasses the third pulley, the first pulley, the driving end of the driving device, one of the second pulleys, the fourth pulley, the other second pulley and is connected to the inner side of the bottom of the hoistway.

[0006] In a specific implementation, connecting pieces are respectively connected to both ends of the steel belt, and the two connecting pieces are respectively connected to the inner sides of the top and the bottom of the hoistway.

[0007] In a specific implementation, both of the two connecting pieces include mounting seats, the two mounting seats are respectively installed on the inner sides of the top and the bottom of the hoistway, and both ends of the steel belt are respectively connected to the two mounting seats.

[0008] In a specific implementation, a U-shaped connecting seat is also bolted to the mounting seat, and the steel belt is connected to the U-shaped connecting seat.

[0009] In a specific implementation, a steel belt clamping seat is integrally formed on the U-shaped connecting seat, and the steel belt is connected to the steel belt clamping seat.

[0010] In a specific embodiment, installation protection members are respectively installed on the top and bottom of the car, and the third pulley and the fourth pulley are respectively installed on the two installation protection members.

[0011] In a specific embodiment, both of the two installation protection members include two cross beams, the four cross beams are respectively installed on the top and bottom of the car, and the third pulley and the fourth pulley are respectively installed on the opposite surfaces of the two cross beams.

[0012] In a specific embodiment, baffles are installed above the third pulley and the fourth pulley on the two cross beams, and a steel belt slot is formed on each baffle.

[0013] In a specific embodiment, mounting holes are equidistantly formed on each cross beam.

[0014] In a specific embodiment, a connecting rod is fixedly connected to the opposite surfaces of the two cross beams.

[0015] Advantageous effects:

[0016] 1. By installing the driving device on the side of the bottom of the hoistway, the requirement of the car at the same height for the top floor height is greatly reduced, so that normal elevator installation can be carried out even when the top floor height is insufficient.

[0017] 2. Through the arrangement of the steel belt, the requirement of the car of the same size for the hoistway size is greatly reduced.

[0018] 3. The distance between the car wall and the hoistway is very small. Under the same hoistway size, the car can be made as large as possible. Description of the drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of an elevator traction device provided by an embodiment of the present application;

[0021] Figure 2 It is a schematic side view structural diagram of an elevator traction device provided by an embodiment of the present application;

[0022] Figure 3 It is a cross-sectional view of an elevator traction device provided by an embodiment of the present application;

[0023] Figure 4Schematic diagram of the installation protection component structure provided by the embodiment of the present application;

[0024] Figure 5 Provided by the embodiment of the present application Figure 1 Enlarged view of location A.

[0025] In the figure: 1 - hoistway; 2 - car; 3 - driving device; 4 - steel belt; 5 - first pulley; 6 - third pulley; 7 - installation protection part; 71 - cross beam; 711 - installation hole; 73 - baffle; 731 - steel belt slot; 74 - connecting rod; 8 - second pulley; 9 - fifth pulley; 10 - connecting part; 101 - installation base; 102 - U-shaped connecting base; 103 - steel belt clamping seat; 12 - fourth pulley. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0027] Please refer to Figures 1 - 5 , the present application provides an elevator traction device, including a hoistway 1 and a steel belt 4.

[0028] Please refer to Figure 1 , Figure 2 , and Figure 3 , a driving device 3 is installed on the outer side of the bottom of the hoistway 1. Specifically, elevator doors are installed on each floor of the hoistway 1. Specifically, a fifth pulley 9 is also installed above the driving device 3 in the hoistway 1. Through the setting of the fifth pulley 9, the steel belt 4 can have a certain guiding effect after bypassing the driving end of the driving device 3, so that the steel belt 4 is in a vertical state when bypassing the first pulley 5, so as to ensure the stability of the car 2. A first pulley 5 and a second pulley 8 are respectively installed on one side of the top and the bottom of the hoistway 1. A car 2 is arranged inside the hoistway 1. A third pulley 6 and a fourth pulley 12 are respectively installed on the top and the bottom of the car 2. The top end of the steel belt 4 is connected to the side of the hoistway 1 away from the first pulley 5. The other end of the steel belt 4 sequentially bypasses the third pulley 6, the first pulley 5, the driving end of the driving device 3, a second pulley 8, the fourth pulley 12, another second pulley 8 and is connected to the inner side of the bottom of the hoistway 1. Among them, an ultra-thin elevator frame hoistway 1 is adopted, without a counterweight design. The steel belt 4 is wound by a pulley combination, so that the elevator car 2 is driven by the driving device 3 of the traction drive, and the car 2 runs up and down in the hoistway 1. By installing the driving device 3 on the side of the bottom of the hoistway 1, the requirement of the car 2 of the same height for the top floor height is greatly reduced, so that the normal elevator installation can be carried out even when the top floor height is insufficient. Through the setting of the steel belt 4, the requirement of the car 2 of the same size for the size of the hoistway 1 is greatly reduced. The distance between the car 2 wall and the hoistway 1 is very small. Under the same hoistway 1 size, the car 2 can be made as large as possible.

[0029] Please refer toFigure 5 , in this embodiment, connecting members 10 are respectively connected to both ends of the steel belt 4, and the two connecting members 10 are respectively connected to the inner sides of the top and bottom of the hoistway 1. Both of the two connecting members 10 include mounting seats 101, and the two mounting seats 101 are respectively mounted on the inner sides of the top and bottom of the hoistway 1. Both ends of the steel belt 4 are respectively connected to the two mounting seats 101. A U-shaped connecting seat 102 is also bolted to the mounting seat 101, and the steel belt 4 is connected to the U-shaped connecting seat 102. A steel belt clamping seat 103 is integrally formed on the U-shaped connecting seat 102, and the steel belt 4 is connected to the steel belt clamping seat 103. Among them, the steel belt clamping seat 103 can connect the steel belt 4. When maintenance is required, the U-shaped connecting seat 102 and the mounting seat 101 can be disassembled in sequence, which is convenient for subsequent elevator maintenance work.

[0030] Please refer to Figure 4 , in this embodiment, mounting protection members 7 are respectively installed on the top and bottom of the car 2, and the third pulley 6 and the fourth pulley 12 are respectively installed on the two mounting protection members 7. Both of the two mounting protection members 7 include two cross beams 71, and the four cross beams 71 are respectively installed on the top and bottom of the car 2, and the third pulley 6 and the fourth pulley 12 are respectively installed on the opposite surfaces of the two cross beams 71. Baffles 73 are installed above the third pulley 6 and the fourth pulley 12 on the two cross beams 71, and a steel belt slot 731 is opened on each baffle 73. Mounting holes 711 are equidistantly opened on each cross beam 71. A connecting rod 74 is fixedly connected to the opposite surfaces of the two cross beams 71. Among them, the third pulley 6 and the fourth pulley 12 are installed through the cross beam 71, and the baffle 73 can protect the third pulley 6 and the fourth pulley 12, improving the service life of the third pulley 6 and the fourth pulley 12. And when maintenance is required for the third pulley 6 and the fourth pulley 12, the baffle 73 can be directly removed. Through the arrangement of the mounting holes 711, the baffle 73 can change its position during installation according to the positions of the third pulley 6 and the fourth pulley 12, so as to ensure the protection of the third pulley 6 and the fourth pulley 12.

[0031] The working principle of this elevator traction device:

[0032] An ultra-thin elevator frame hoistway 1 is adopted, without a counterweight design. The steel belt 4 is wound through a pulley combination, and the elevator car 2 is driven by the traction drive device 3 to move up and down in the hoistway 1. By installing the drive device 3 on the side of the bottom of the hoistway 1, the requirement of the car 2 of the same height for the top floor height is greatly reduced, so that normal elevator installation can be carried out even when the top floor height is insufficient. Through the arrangement of the steel belt 4, the requirement of the car 2 of the same size for the size of the hoistway 1 is greatly reduced. The distance between the car 2 wall and the hoistway 1 is very small. Under the same hoistway 1 size, the car 2 can be made as large as possible.

[0033] It should be noted that the specific model and specifications of the driving device 3 need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the field, so it will not be elaborated in detail here.

[0034] The power supply and principle of the driving device 3 are clear to those skilled in the art, and will not be elaborated in detail here.

[0035] The above are only the embodiments of the present application, and are not used to limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. An elevator traction device, characterized in that, Comprising a hoistway (1) and a steel belt (4), a driving device (3) is installed on the outer side of the bottom of the hoistway (1), a first pulley (5) and a second pulley (8) are respectively installed on one side of the top and the bottom of the hoistway (1), a car (2) is arranged inside the hoistway (1), a third pulley (6) and a fourth pulley (12) are respectively installed on the top and the bottom of the car (2), the top end of the steel belt (4) is connected to the side of the hoistway (1) away from the first pulley (5), and the other end of the steel belt (4) sequentially bypasses the third pulley (6), the first pulley (5), the driving end of the driving device (3), one of the second pulleys (8), the fourth pulley (12), the other second pulley (8) and is connected to the inner side of the bottom of the hoistway (1).

2. The elevator traction device according to claim 1, characterized in that, Connectors (10) are respectively connected to both ends of the steel belt (4), and the two connectors (10) are respectively connected to the inner sides of the top and the bottom of the hoistway (1).

3. The elevator traction device according to claim 2, characterized in that, Both of the two connectors (10) include mounting seats (101), the two mounting seats (101) are respectively installed on the inner sides of the top and the bottom of the hoistway (1), and both ends of the steel belt (4) are respectively connected to the two mounting seats (101).

4. The elevator traction device according to claim 3, characterized in that, A U-shaped connecting seat (102) is also bolted to the mounting seat (101), and the steel belt (4) is connected to the U-shaped connecting seat (102).

5. The elevator traction device according to claim 4, characterized in that, A steel belt clamping seat (103) is integrally formed on the U-shaped connecting seat (102), and the steel belt (4) is connected to the steel belt clamping seat (103).

6. The elevator traction device according to claim 1, characterized in that, Mounting protection parts (7) are respectively installed on the top and the bottom of the car (2), and the third pulley (6) and the fourth pulley (12) are respectively installed on the two mounting protection parts (7).

7. The elevator traction device according to claim 6, characterized in that, Both of the two mounting protection parts (7) include two cross beams (71), the four cross beams (71) are respectively installed on the top and the bottom of the car (2), and the third pulley (6) and the fourth pulley (12) are respectively installed on the opposite surfaces of the two cross beams (71).

8. The elevator traction device according to claim 7, characterized in that, A baffle (73) is installed above the third pulley (6) and the fourth pulley (12) on the two cross beams (71), and a steel belt slot (731) is opened on each baffle (73).

9. The elevator traction device according to claim 7, characterized in that, Mounting holes (711) are equidistantly opened on each cross beam (71).

10. The elevator traction device according to claim 7, characterized in that, Connecting rods (74) are fixedly connected to the opposite surfaces of the two cross beams (71).

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