CN219885403U - A counterweight rope winding device - Google Patents

Abstract

The utility model discloses a counterweight rope winding device, which includes a hoistway, a traction machine and a traction wheel. A car and a counterweight are provided in the hoistway, and the counterweight is located on one side of the car. The car is provided with a car. The counterweight is equipped with a counterweight movable pulley set. The hoistway is equipped with a car fixed pulley set and a counterweight fixed pulley set. The counterweight fixed pulley set includes two first fixed pulleys and a number of second fixed pulleys. The counterweight movable pulley set includes a first movable pulley, The second movable pulley and a number of intermediate movable pulleys are equipped with a traction rope. One end of the traction rope goes around the first movable pulley, the two first fixed pulleys and the second movable pulley in turn, and then alternately goes around a number of second fixed pulleys and There are several intermediate movable pulleys, and the other end of the traction rope alternately bypasses the car movable pulley set and the car fixed pulley set, and the end is fixed by the rope head plate. The counterweight rope winding device provided by the utility model is designed to shorten the starting time difference of the movable pulleys located on both sides of the counterweight and avoid the phenomenon of the counterweight stumbling and swinging left and right when the elevator starts.

Description

A counterweight rope winding device

Technical field

The utility model relates to the technical field of elevator machine room layout, and in particular to a counterweight rope winding device.

Background technique

With the improvement of automation level, elevators need to carry more and more goods. The 2:1 and 4:1 traction elevators with transmission can no longer meet the load requirements. Among them, n:1 is called the traction ratio, also known as is the rope winding ratio, that is, there are n traction ropes hanging the car or counterweight, and n is a positive integer greater than 1. At present, as shown in Figure 5, large-tonnage traction elevators use a roping method in which the traction rope alternately bypasses the counterweighted pulley block and the counterweighted pulley block. However, the traction rope is a steel wire rope and has elastic extension characteristics. When the elevator starts, due to the elastic extension of the traction rope, there is a start-up time difference between the leftmost movable pulley and the rightmost movable pulley of the counterweight, resulting in the counterweight pair stumbling and swinging left and right, and the various components wear out.

It can be seen that the existing technology still needs to be improved and improved.

Utility model content

In view of the shortcomings of the above-mentioned prior art, the purpose of this utility model is to provide a counterweight rope winding device, which is designed to shorten the starting time difference of the movable pulleys located on both sides of the counterweight and avoid the counterweight from stumbling and swinging left and right when the elevator starts. The phenomenon.

In order to achieve the above purpose, the present utility model adopts the following technical solutions:

A counterweight rope winding device includes a hoistway, a traction machine installed at the top of the hoistway, and a traction sheave installed at the output end of the traction machine. A car and a counterweight are slidingly connected in the hoistway, and the counterweight is located on one side of the car. On the side, there is a car movable pulley set on the top of the car, a counterweight movable pulley set on the top of the counterweight, and a car fixed pulley set corresponding to the car movable pulley set and a counterweight fixed pulley set corresponding to the counterweight movable pulley set on the top of the hoistway. Pulley set, the counterweighted fixed pulley set includes two first fixed pulleys and a number of second fixed pulleys located below the first fixed pulleys. The counterweighted fixed pulley set includes a first movable pulley set close to the position directly below the traction machine, and a first movable pulley set away from the traction machine. There is a second movable pulley just below the traction machine and a number of intermediate movable pulleys between the first movable pulley and the second movable pulley. There is a traction rope on the traction pulley. One end of the traction rope goes around the first movable pulley and two The first fixed pulley and the second movable pulley alternately go around a number of second fixed pulleys and a number of intermediate movable pulleys. The other end of the traction rope alternately goes around the car movable pulley set and the car fixed pulley set. Both ends of the traction rope pass through the rope. The head plate is fixed to the top of the hoistway.

The roping ratio of the traction rope is 2n:1, n is an integer greater than or equal to 3, the number of the second fixed pulleys is n-2, the number of the intermediate movable pulleys is n-2, and the car The moving pulley block is provided with n third moving pulleys.

The top of the hoistway is provided with a first load-bearing beam and a second load-bearing beam. There is a pad beam between the first load-bearing beam and the second load-bearing beam. Two first fixed pulleys are rotationally connected to the second load-bearing beam, and a number of second fixed pulleys are connected to the second load-bearing beam. The pulley is rotationally connected to the first load-bearing beam and is located below between the two first fixed pulleys.

The roping ratio of the traction rope is 6:1, the number of the second fixed pulley is 1, the number of the intermediate movable pulley is 1, and the car movable pulley set is provided with 3 third movable pulleys.

The roping ratio of the traction rope is 8:1, the number of the second fixed pulleys is 2, the number of the intermediate movable pulleys is 2, and the car movable pulley set is provided with 4 third movable pulleys.

Three third movable pulleys arranged at equal intervals are provided on the top of the car. The fixed pulley set of the car includes two third fixed pulleys. A third load-bearing beam is provided on the hoistway, and two third fixed pulleys are provided on the hoistway. The pulley is rotationally connected to the third load-bearing beam and is located directly above the third movable pulley.

The four third movable pulleys are arranged in a matrix on the top of the car. There are symmetrically arranged fourth load-bearing beams and fifth load-bearing beams on the hoistway. The fixed pulley set of the car includes a first side guide. wheel, second side guide wheel, third side guide wheel, fourth side guide wheel, fifth side guide wheel and sixth side guide wheel, the first side guide wheel, second side guide wheel and third side guide wheel are all Rotally connected to the fourth load-bearing beam, and the axis line of the first side guide wheel and the axis line of the second side guide wheel are both perpendicular to the axis line of the third side guide wheel, the fourth side guide wheel, the fifth side guide wheel The guide wheel and the sixth side guide wheel are both rotationally connected to the fifth load-bearing beam, and the axis line of the fourth side guide wheel and the axis line of the fifth side guide wheel are both perpendicular to the axis line of the sixth side guide wheel. The third side guide wheel and the sixth side guide wheel are arranged correspondingly.

Beneficial effects:

By setting up the car movable pulley set and the car fixed pulley set, after the traction rope bypasses the traction sheave, one end of the traction rope alternately bypasses the car movable pulley set and the car fixed pulley set to lift the car; and by setting up a counterweight Pulley block and counterweight fixed pulley block, and the counterweight fixed pulley block includes a first movable pulley, a second movable pulley and a number of intermediate movable pulleys, and the counterweight fixed pulley block includes 2 first fixed pulleys and a number of second fixed pulleys located below the first fixed pulley, so that the trolley The other end of the lead rope goes around the first movable pulley, the two first fixed pulleys, the second movable pulley, and then alternately goes around a number of second fixed pulleys and a number of intermediate movable pulleys to achieve the lifting of the counterweight. Under the action of the fixed pulley, the length of the traction rope bypassing the first movable pulley and the second movable pulley is shortened, thereby shortening the starting time difference between the first movable pulley and the second movable pulley, and avoiding the counterweight failure and failure when the elevator starts. The phenomenon of left and right swing extends the service life of each component.

Description of the drawings

Figure 1 is a schematic diagram of the rope winding deployment of the first embodiment of the counterweight rope winding device provided by the present invention.

Figure 2 is a top view of the first embodiment of the hoistway in the counterweight rope winding device provided by the present invention.

Figure 3 is a schematic diagram of the rope winding unfolding in the second embodiment of the counterweight rope winding device provided by the present invention.

Figure 4 is a top view of the second embodiment of the hoistway in the counterweight rope winding device provided by the present invention.

Figure 5 is a schematic diagram of the counterweight rope deployment of an existing large-tonnage traction elevator.

Main component symbol description: 1. Hoistway; 11. First load-bearing beam; 12. Second load-bearing beam; 13. Pad beam; 14. Third load-bearing beam; 15. Fourth load-bearing beam; 16. Fifth load-bearing beam; 2 , Traction machine; 21. Traction pulley; 3. Car; 4. Counterweight; 5. Third moving pulley; 6. Counterweight moving pulley group; 61. First moving pulley; 62. Second moving pulley; 63. Middle moving pulley ;7. Car fixed pulley set; 71. Third fixed pulley; 72. First side guide pulley; 73. Second side guide pulley; 74. Third side guide pulley; 75. Fourth side guide pulley; 76. No. Five side guide pulleys; 77. Sixth side guide pulley; 8. Counterweight fixed pulley group; 81. First fixed pulley; 82. Second fixed pulley; 9. Traction rope; 10. Rope head plate.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

In the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated device, element or component to have a specific orientation, or to be constructed and operated in a specific orientation.

Moreover, some of the above terms may also be used to express other meanings in addition to indicating orientation or positional relationships. For example, the term "upper" may also be used to express a certain dependence relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, components or components (the specific types and structures may be the same or different), and are not used to indicate or imply that the indicated devices, components or the relative importance and number of components.

The technical solution of the present invention will be further described below with reference to the embodiments and drawings.

Example

Please refer to Figures 1-4. The utility model provides a counterweight rope winding device, which includes a hoistway 1, a traction machine 2 installed at the top of the hoistway 1, and a traction wheel 21 installed at the output end of the traction machine 2. The hoistway 1 There is a car 3 and a counterweight 4 slidingly connected inside, and the counterweight 4 is located on one side of the car 3. The top of the car 3 is equipped with a car movable pulley set, and the top of the counterweight 4 is provided with a counterweight movable pulley set 6. The hoistway The top of 1 is provided with a car fixed pulley set 7 corresponding to the car movable pulley set and a counterweight fixed pulley set 8 corresponding to the counterweight movable pulley set 6. The counterweight fixed pulley set 8 includes 2 first fixed pulleys 81 and a number of first fixed pulleys 81. The second fixed pulley 82 is located below the fixed pulley 81. The counterweight pulley group 6 includes a first movable pulley 61 located close to the position directly below the traction machine 2, a second movable pulley 62 located away from the position directly below the traction machine 2, and a number of The intermediate movable pulley 63 between the first movable pulley 61 and the second movable pulley 62 is provided with a traction rope 9 on the traction pulley 21. One end of the traction rope 9 sequentially goes around the first movable pulley 61, the two first fixed pulleys 81 and The second movable pulley 62 alternately bypasses a number of second fixed pulleys 82 and a number of intermediate movable pulleys 63. The other end of the traction rope 9 alternately bypasses the car movable pulley set and the car fixed pulley set 7. Both ends of the traction rope 9 pass through The rope head plate 10 is fixed to the top of the hoistway 1.

When in use, the middle part of the traction rope 9 goes around the traction pulley 21, and one end of the traction rope 9 goes around the first movable pulley 61, the two first fixed pulleys 81, the second movable pulley 62 and the second movable pulley 62 in turn and then alternately. Passing through a number of second fixed pulleys 82 and a number of intermediate movable pulleys 63, the other end of the traction rope 9 alternately bypasses the car movable pulley set and the car fixed pulley set 7, so that the traction rope 9 acts under the gravity of the car 3 and the counterweight 4 The bottom is always pressed on the traction sheave 21. The friction between the traction sheave 21 and the traction rope 9 is used so that the traction sheave 21 can drive the traction rope 9 to drag when the traction machine 2 drives and rotates. The moving car 3 and the counterweight 4 move relative to each other. When the car 3 rises, the counterweight 4 falls; when the counterweight 4 rises, the car 3 falls. Compared with the existing technology, the start-up time difference between the first movable pulley 61 and the second movable pulley 62 can be reduced, preventing the counterweight 4 from stumbling and swinging left and right when the elevator starts, and extending the service life of each component.

In this embodiment, the roping ratio of the traction rope 9 is 2n:1, n is an integer greater than or equal to 3, the number of the second fixed pulleys 82 is n-2, and the number of the intermediate movable pulleys 63 is n -2, n third movable pulleys 5 are provided in the movable pulley set of the car.

In one embodiment, referring to Figures 1 and 2, n=3, that is, the roping ratio of the traction rope 9 is 6:1. In this embodiment, there are 6 traction ropes 9 hanging the car 3 or the pair. Heavy 4. The number of the second fixed pulley 82 is one, the number of the intermediate movable pulley 63 is one, and the car movable pulley set is provided with three third movable pulleys 5 .

Further, a first load-bearing beam 11 and a second load-bearing beam 12 are provided at the top of the hoistway 1. A pad beam 13 is provided between the first load-bearing beam 11 and the second load-bearing beam 12. The two first fixed pulleys 81 and the second The two load-bearing beams 12 are rotationally connected, and a second fixed pulley 82 is rotationally connected to the first load-bearing beam 11 and is located below the two first fixed pulleys 81 . After one end of the traction rope 9 is wound out of the traction pulley 21, it sequentially goes around the first movable pulley 61, the two first fixed pulleys 81 and the second movable pulley 62, the second fixed pulley 82 and the intermediate movable pulley 63, and the final end is supported by the supporting pulley 61. Head plate fixed. Since the first movable pulley 61 is disposed close to the position directly below the traction machine 2, and the second movable pulley 62 is disposed away from the position directly below the traction machine 2, and under the action of the two first fixed pulleys 81, the length of the bypass around the first fixed pulley 62 is shortened. The length of the traction rope 9 between the movable pulley 61 and the second movable pulley 62 shortens the starting time difference between the first movable pulley 61 and the second movable pulley 62, so that the left and right sides of the counterweight 4 are nearly synchronized when they are pulled, ensuring that Counterweight 4 for smooth operation.

Furthermore, three equally spaced third movable pulleys 5 are provided on the top of the car 3 , the car fixed pulley set 7 includes two third fixed pulleys 71 , and the hoistway 1 is provided with a third movable pulley 5 . The three load-bearing beams 14 and the two third fixed pulleys 71 are rotationally connected to the third load-bearing beam 14 and are located directly above the third movable pulley 5 . After the other end of the traction rope 9 is wound out of the traction wheel 21, it alternately goes around three third movable pulleys 5 and two third fixed pulleys 71, and the last end is fixed by the head plate to achieve the purpose of passing through the traction rope 9 It acts on the car fixed pulley set 7 and the car movable pulley set to lift the car 3 and drive the car 3 up or down.

In another embodiment, refer to Figures 3 and 4, n=4, that is, the roping ratio of the traction rope 9 is 8:1. In this embodiment, there are 8 traction ropes 9 hanging the car 3 or Counterweight 4. The number of the second fixed pulleys 82 is 2, the number of the intermediate movable pulleys 63 is 2, and the car movable pulley set is provided with four third movable pulleys 5 .

Further, a first load-bearing beam 11 and a second load-bearing beam 12 are provided at the top of the hoistway 1. A pad beam 13 is provided between the first load-bearing beam 11 and the second load-bearing beam 12. The two first fixed pulleys 81 and the second The two load-bearing beams 12 are rotationally connected, and the two second fixed pulleys 82 are rotationally connected with the first load-bearing beam 11 and are located below the two first fixed pulleys 81 . After one end of the traction rope 9 is wound out of the traction pulley 21, it sequentially goes around the first movable pulley 61, the two first fixed pulleys 81 and the second movable pulley 62, the second fixed pulley 82 on the left, and the second fixed pulley 82 on the left. The middle movable pulley 63, the second fixed pulley 82 on the right side and the middle movable pulley 63 on the right side are finally fixed by the head plate. Since the first movable pulley 61 is disposed close to the position directly below the traction machine 2, the second movable pulley 62 is disposed away from the position directly below the traction machine 2, and under the action of the two first fixed pulleys 81, the length around the first movable pulley is shortened. The length of the traction rope 9 between 61 and the second movable pulley 62 shortens the starting time difference between the first movable pulley 61 and the second movable pulley 62, so that the left and right sides of the counterweight 4 are nearly synchronized when they are pulled, ensuring that the counterweight 4 is pulled simultaneously. Heavy 4 for smooth operation.

Furthermore, the four third movable pulleys 5 are arranged in a matrix arrangement on the top of the car 3, that is, the four third movable pulleys 5 are evenly distributed on the top of the car 3, so that the car 3 is affected by the impact during operation. The force is uniform, which is conducive to the smooth operation of the elevator. The hoistway 1 is provided with a symmetrically arranged fourth load-bearing beam 15 and a fifth load-bearing beam 16. The car fixed pulley set 7 includes a first side guide pulley 72, a second side guide pulley 73, and a third side guide pulley 74. , the fourth side guide wheel 75 , the fifth side guide wheel 76 and the sixth side guide wheel 77 , the first side guide wheel 72 , the second side guide wheel 73 and the third side guide wheel 74 all rotate with the fourth load-bearing beam 15 connected, and the axis line of the first side guide wheel 72 and the axis line of the second side guide wheel 73 are both perpendicular to the axis line of the third side guide wheel 74, the fourth side guide wheel 75, the fifth side guide wheel 75 76 and the sixth side guide wheel 77 are both rotationally connected with the fifth load-bearing beam 16, and the axis of the fourth side guide wheel 75 and the axis of the fifth side guide wheel 76 are both connected with the axis of the sixth side guide wheel 77. The center line is vertical, and the third side guide wheel 74 and the sixth side guide wheel 77 are in the same horizontal plane. After the other end of the traction rope 9 is wound out of the traction pulley 21, one end of the traction rope 9 sequentially goes around a third moving pulley 5, a first side guide pulley 72, a second side guide pulley 73, and a third movable pulley 5. The third movable pulley 5, the third side guide pulley 74, the fourth side guide pulley 75, the third movable pulley 5, the fifth side guide pulley 76, the sixth side guide pulley 77 and a third movable pulley 5, the last end is fixed on the bearing On the head board, the traction rope 9 acts on the car fixed pulley group 7 and the car movable pulley group to lift the car 3 and drive the car 3 up or down.

It can be understood that those of ordinary skill in the art can make equivalent substitutions or changes based on the technical solutions of the present utility model and its utility model concepts, and all such changes or substitutions should fall within the protection scope of the present utility model.

Claims (7)

1. A counterweight rope winding device, characterized in that it includes a hoistway, a traction machine installed at the top of the hoistway, and a traction sheave installed at the output end of the traction machine. A car and a counterweight are slidably connected in the hoistway, and the counterweight is slidably connected to the hoistway. The weight is located on one side of the car. There is a car movable pulley set on the top of the car, a counterweight movable pulley set on the top of the counterweight, and a car fixed pulley set corresponding to the car movable pulley set and a counterweight pulley set on the top of the hoistway. The counterweight fixed pulley set corresponding to the movable pulley set includes two first fixed pulleys and a number of second fixed pulleys located below the first fixed pulley set. The counterweight fixed pulley set includes a counterweight fixed pulley set located close to the position directly below the traction machine. The first movable pulley, the second movable pulley located far away from the position directly below the traction machine and a number of intermediate movable pulleys located between the first movable pulley and the second movable pulley. The traction pulley is provided with a traction rope, and one end of the traction rope is wound around it in turn. The first movable pulley, the two first fixed pulleys and the second movable pulley then alternately go around a number of second fixed pulleys and a number of intermediate movable pulleys. The other end of the traction rope alternately goes around the car movable pulley set and the car fixed pulley set. The traction rope Both ends of the hoistway are fixed to the top of the hoistway through rope head plates. 2. The counterweight roping device according to claim 1, wherein the roping ratio of the traction rope is 2n:1, n is an integer greater than or equal to 3, and the number of the second fixed pulleys is n-2, the number of intermediate movable pulleys is n-2, and the car movable pulley set is provided with n third movable pulleys. 3. The counterweight rope winding device according to claim 1, characterized in that a first load-bearing beam and a second load-bearing beam are provided at the top of the hoistway, and a pad beam is provided between the first load-bearing beam and the second load-bearing beam. , two first fixed pulleys are rotationally connected to the second load-bearing beam, and a plurality of second fixed pulleys are rotationally connected to the first load-bearing beam, and are located below the two first fixed pulleys. 4. The counterweight rope winding device according to claim 2, characterized in that the rope winding ratio of the traction rope is 6:1, the number of the second fixed pulleys is 1, and the number of the intermediate movable pulleys is 1, and the car movable pulley set is provided with 3 third movable pulleys. 5. The counterweight rope winding device according to claim 2, characterized in that the rope winding ratio of the traction rope is 8:1, the number of the second fixed pulleys is 2, and the number of the intermediate movable pulleys is 2, and the car movable pulley set is provided with 4 third movable pulleys. 6. The counterweight rope winding device according to claim 4, characterized in that three equally spaced third movable pulleys are provided on the top of the car, and the car fixed pulley group includes two third movable pulleys. Fixed pulleys, a third load-bearing beam is provided on the hoistway, two third fixed pulleys are rotationally connected to the third load-bearing beam, and are located directly above the third movable pulley. 7. The counterweight rope winding device according to claim 5, characterized in that the four third movable pulleys are arranged in a matrix arrangement on the top of the car, and the hoistway is provided with a symmetrically arranged fourth Load-bearing beam and fifth load-bearing beam, the car fixed pulley set includes a first side guide pulley, a second side guide pulley, a third side guide pulley, a fourth side guide pulley, a fifth side guide pulley and a sixth side guide pulley , the first side guide wheel, the second side guide wheel and the third side guide wheel are all rotationally connected to the fourth load-bearing beam, and the axis lines of the first side guide wheel and the second side guide wheel are both connected to the fourth load-bearing beam. The axis lines of the three-side guide wheels are vertical, the fourth-side guide wheel, the fifth-side guide wheel and the sixth-side guide wheel are all rotationally connected with the fifth load-bearing beam, and the axis line of the fourth-side guide wheel and the fifth-side guide wheel are The axis line of the guide wheel is perpendicular to the axis line of the sixth side guide wheel, and the third side guide wheel and the sixth side guide wheel are arranged correspondingly.