CN219885403U

CN219885403U - Counterweight rope winding device

Info

Publication number: CN219885403U
Application number: CN202321559971.0U
Authority: CN
Inventors: 陈文学
Original assignee: Homefriend and Fuji Elevator Co Ltd
Current assignee: Homefriend and Fuji Elevator Co Ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-10-24
Anticipated expiration: 2033-06-16

Abstract

The utility model discloses a counterweight rope winding device, which comprises a hoistway, a traction machine and a traction sheave, wherein a lift car and a counterweight are arranged in the hoistway, the counterweight is positioned at one side of the lift car, the lift car is provided with a lift car movable pulley block, the counterweight is provided with a lift car fixed pulley block and a counterweight fixed pulley block, the hoistway is provided with a lift car fixed pulley block and a counterweight fixed pulley block, the counterweight fixed pulley block comprises 2 first fixed pulleys and a plurality of second fixed pulleys, the counterweight movable pulley block comprises a first movable pulley, a second movable pulley and a plurality of middle movable pulleys, a traction rope is arranged on the traction sheave, one end of the traction rope sequentially bypasses the first movable pulley, the 2 first fixed pulleys and the second movable pulleys and then alternately bypasses the plurality of second fixed pulleys and the plurality of middle movable pulleys, the other end of the traction rope alternately bypasses the lift car movable pulley block and the lift car fixed pulley block, and the tail end of the traction rope is fixed through a rope head plate. The utility model provides a counterweight rope winding device, which aims to shorten the starting time difference of movable pulleys positioned at two sides of a counterweight and avoid the phenomenon that the counterweight is in a pause and swings left and right when an elevator is started.

Description

Counterweight rope winding device

Technical Field

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

Background

As the level of automation increases, more and more goods need to be carried by the elevator, driven 2:1 and 4:1, wherein n:1 is called a traction ratio, also called a roping ratio, i.e. there are n hoisting ropes suspending the car or counterweight, n being a positive integer greater than 1. At present, as shown in fig. 5, a large-tonnage traction elevator adopts a rope winding mode that a traction rope sequentially and alternately bypasses a pair of a heavy pulley block and a counterweight movable pulley block, however, the traction rope is a steel wire rope and has the characteristic of elastic extension, when the elevator is started, the starting time difference exists between the leftmost movable pulley and the rightmost movable pulley of the counterweight due to the elastic extension of the traction rope, so that the phenomenon of pause and left-right swing of the counterweight is caused, and each part is worn greatly.

It can be seen that there is a need for improvements and improvements in the art.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present utility model is to provide a counterweight rope winding device, which aims to shorten the starting time difference of movable pulleys located at both sides of the counterweight and avoid the phenomenon that the counterweight has a jerk and swings left and right when the elevator is started.

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

the utility model provides a counterweight rope winding device, includes the well, installs the hauler at the well top and installs the traction sheave at the hauler output, sliding connection has car and counterweight in the well, and the counterweight is located one side of car, and the top of car is equipped with the car running block, and the top of counterweight is equipped with the counterweight running block, and the top of well is equipped with the car fixed pulley group that corresponds with the car running block and the counterweight fixed pulley group that corresponds with the counterweight running block, the counterweight fixed pulley group includes 2 first fixed pulleys and a plurality of second fixed pulleys that are located first fixed pulleys below, the counterweight running block includes the first running pulley that is close to the position setting under the hauler, the second running pulley that is kept away from the position setting under the hauler and a plurality of intermediate running pulleys that are located between first running pulley and the second running pulley, is equipped with the hauling rope on the traction sheave, and the one end of hauling rope winds first running pulley, 2 first fixed pulleys and second fixed pulleys after alternately around a plurality of second fixed pulleys and a plurality of intermediate running pulleys in proper order, the other end of hauling rope winds alternately and the second fixed pulleys that are located first fixed pulleys and second fixed pulleys and the second movable pulleys that are located second fixed pulleys and the top of the well through the end of the well.

The ratio of the ropes of the hoisting ropes 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 middle movable pulleys is n-2, and the movable pulley block of the lift car is provided with n third movable pulleys.

The well top is equipped with first spandrel girder and second spandrel girder, is equipped with the bolster between first spandrel girder and the second spandrel girder, and 2 first fixed pulleys are connected with the rotation of second spandrel girder, and a plurality of second fixed pulleys are connected with first spandrel girder rotation, and are located the below between 2 first fixed pulleys.

The roping ratio of the hoisting rope is 6:1, the quantity of second fixed pulley is 1, and the quantity of middle movable pulley is 1, car movable pulley group is equipped with 3 third movable pulleys.

The roping ratio of the hoisting rope is 8:1, the quantity of second fixed pulley is 2, and the quantity of middle movable pulley is 2, car movable pulley group is equipped with 4 third movable pulleys.

The third movable pulleys arranged at equal intervals are arranged at the top of the lift car, the lift car fixed pulley block comprises 2 third fixed pulleys, a third spandrel girder is arranged on a well, and the 2 third fixed pulleys are rotationally connected with the third spandrel girder and are located right above the third movable pulleys.

The four elevator car fixed pulley blocks comprise first side guide wheels, second side guide wheels, third side guide wheels, fourth side guide wheels, fifth side guide wheels and sixth side guide wheels, wherein the first side guide wheels, the second side guide wheels and the third side guide wheels are rotationally connected with the fourth bearing beam, the axial lead of the first side guide wheels and the axial lead of the second side guide wheels are perpendicular to the axial lead of the third side guide wheels, the fourth side guide wheels, the fifth side guide wheels and the sixth side guide wheels are rotationally connected with the fifth bearing beam, the axial lead of the fourth side guide wheels and the axial lead of the fifth side guide wheels are perpendicular to the axial lead of the sixth side guide wheels, and the third side guide wheels and the sixth side guide wheels are correspondingly arranged.

The beneficial effects are that:

by arranging the movable pulley block and the fixed pulley block of the lift car, after the traction rope bypasses the traction sheave, one end of the traction rope alternately bypasses the movable pulley block and the fixed pulley block of the lift car to realize lifting and pulling of the lift car; and through setting up to heavy movable pulley group and to heavy fixed pulley group, and to heavy movable pulley group includes first movable pulley, second movable pulley and a plurality of middle movable pulley, to heavy fixed pulley group includes 2 first fixed pulleys and a plurality of second fixed pulleys that are located first fixed pulleys below, make the other end of hauling rope walk around first movable pulley in proper order, 2 first fixed pulleys, a plurality of second fixed pulleys and a plurality of middle movable pulleys of bypassing in turn behind the second movable pulley, realize the lifting to the heavy, and under the effect of 2 first fixed pulleys, the length of the hauling rope of bypassing between first movable pulley and the second movable pulley has been shortened, and then the start-up time difference of first movable pulley and second movable pulley has been shortened, the phenomenon of having to pause and horizontal hunting to heavy existence when having avoided the elevator to start, the life of each part is prolonged.

Drawings

Fig. 1 is a schematic drawing showing a roping arrangement according to a first embodiment of the counterweight roping arrangement provided by the utility model.

Fig. 2 is a top view of a first embodiment of a hoistway in a counterweight roping arrangement provided by the present utility model.

Fig. 3 is a schematic drawing showing a roping arrangement according to a second embodiment of the counterweight roping arrangement provided by the utility model.

Fig. 4 is a top view of a second embodiment of a hoistway in a counterweight roping arrangement provided by the present utility model.

Fig. 5 is a schematic diagram of the unwinding of counterweight roping of a prior art large tonnage traction elevator.

Description of main reference numerals: 1. a hoistway; 11. a first load beam; 12. a second spandrel girder; 13. a bolster; 14. a third spandrel girder; 15. a fourth spandrel girder; 16. a fifth spandrel girder; 2. a traction machine; 21. traction sheave; 3. a car; 4. a counterweight; 5. a third movable pulley; 6. a counterweight movable pulley block; 61. a first movable pulley; 62. a second movable pulley; 63. a middle movable pulley; 7. a fixed pulley block of the lift car; 71. a third fixed pulley; 72. a first side guide wheel; 73. a second side guide wheel; 74. a third side guide wheel; 75. a fourth side guide pulley; 76. a fifth side guide pulley; 77. a sixth side guide pulley; 8. a counterweight fixed pulley block; 81. a first fixed pulley; 82. a second fixed pulley; 9. a hoisting rope; 10. rope hitch plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, the terms "upper", "lower", "left", "right", "top", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated.

The technical scheme of the utility model will be further described with reference to the examples and the accompanying drawings.

Examples

Referring to fig. 1-4, the utility model provides a counterweight rope winding device, which comprises a hoistway 1, a traction machine 2 arranged at the top of the hoistway 1 and a traction sheave 21 arranged at the output end of the traction machine 2, wherein a car 3 and a counterweight 4 are connected in a sliding manner in the hoistway 1, the counterweight 4 is positioned at one side of the car 3, a car movable pulley block is arranged at the top of the car 3, a counterweight movable pulley block 6 is arranged at the top of the counterweight 4, a car fixed pulley block 7 corresponding to the car movable pulley block and a counterweight fixed pulley block 8 corresponding to the counterweight movable pulley block 6 are arranged at the top of the hoistway 1, the counterweight fixed pulley block 8 comprises 2 first fixed pulleys 81 and a plurality of second fixed pulleys 82 positioned below the first fixed pulleys 81, the counterweight movable pulley block 6 comprises a first movable pulley 61 arranged at a position close to the lower part of the traction machine 2, a plurality of intermediate movable pulleys 63 arranged far away from the lower part of the traction machine 2, a traction rope 9 is arranged on the counterweight sheave 21, one end of the traction rope 9 is wound around the first movable pulleys 61, the second fixed pulleys 62 and the second fixed pulleys 62 are wound around the other ends of the car movable pulleys 7 and the two fixed pulleys 9 in turn, and the other ends of the counterweight movable pulleys 9 are wound around the two fixed pulleys 7 and the top of the car fixed pulleys 82.

When the elevator traction device is used, the middle part of the traction rope 9 bypasses the traction wheel 21, one end of the traction rope 9 sequentially bypasses the first movable pulley 61, the 2 first fixed pulleys 81, the second movable pulleys 62 and alternately bypasses the second fixed pulleys 82 and the middle movable pulleys 63, the other end of the traction rope 9 alternately bypasses the movable pulley block of the elevator car and the fixed pulley block 7 of the elevator car, the traction rope 9 is always pressed on the traction wheel 21 under the action of gravity of the elevator car 3 and the counterweight 4, friction force between the traction wheel 21 and the traction rope 9 is utilized, and when the traction wheel 21 drives the traction machine 2 to rotate, the traction rope 9 can be driven to drag the elevator car 3 and the counterweight 4 to move relatively, and when the elevator car 3 ascends, the counterweight 4 descends; when the counterweight 4 is raised, the car 3 is lowered. Compared with the prior art, the starting time difference between the first movable pulley 61 and the second movable pulley 62 can be reduced, the phenomenon that the counterweight 4 is in a pause and swings left and right when the elevator is started is avoided, and the service life of each part is prolonged.

In this embodiment, the roping ratio of the hoisting 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, the number of the intermediate movable pulleys 63 is n-2, and n third movable pulleys 5 are arranged in the movable pulley block of the car.

In one embodiment, referring to fig. 1, 2, n=3, i.e. the roping ratio of the hoisting rope 9 is 6:1, in the present embodiment, 6 hoisting ropes 9 are used to hoist the car 3 or the counterweight 4. The number of the second fixed pulleys 82 is 1, the number of the middle movable pulleys 63 is 1, and the movable pulley block of the car is provided with 3 third movable pulleys 5.

Further, a first spandrel girder 11 and a second spandrel girder 12 are arranged at the top of the hoistway 1, a bolster 13 is arranged between the first spandrel girder 11 and the second spandrel girder 12, 2 first fixed pulleys 81 are rotatably connected with the second spandrel girder 12, and 1 second fixed pulley 82 is rotatably connected with the first spandrel girder 11 and is positioned below between the 2 first fixed pulleys 81. After the traction sheave 21 is wound out, one end of the hoisting rope 9 sequentially passes around the first movable sheave 61, the 2 first fixed sheaves 81, the second movable sheave 62, the second fixed sheave 82, and the intermediate movable sheave 63, and the final end is fixed by the head plate. Because the first movable pulley 61 is arranged close to the position right below the traction machine 2, the second movable pulley 62 is arranged far away from the position right below the traction machine 2, and the length of the traction rope 9 bypassing between the first movable pulley 61 and the second movable pulley 62 is shortened under the action of the 2 first fixed pulleys 81, namely, the starting time difference of the first movable pulley 61 and the second movable pulley 62 is shortened, so that the left side and the right side of the counterweight 4 are close to synchronous when being lifted, and the stable running of the counterweight 4 is ensured.

Still further, 3 equidistant third movable pulleys 5 that set up are located the top of car 3, car fixed pulley group 7 includes 2 third fixed pulleys 71, be equipped with third spandrel girder 14 on the well 1, 2 third fixed pulleys 71 and third spandrel girder 14 rotate to be connected, and be located directly over third movable pulleys 5. The other end of the traction rope 9 is wound out of the traction wheel 21, then the traction rope sequentially and alternately bypasses 3 third movable pulleys 5 and 2 third fixed pulleys 71, and the final tail end of the traction rope is fixed by a head bearing plate, so that the purpose that the lift car 3 is lifted by the action of the traction rope 9 on the car fixed pulley block 7 and the car movable pulley block is achieved, and the lift car 3 is driven to ascend or descend is achieved.

In another embodiment, referring to fig. 3, 4, n=4, i.e. the roping ratio of the hoisting rope 9 is 8:1, in the present embodiment, 8 hoisting ropes 9 are provided to hoist the car 3 or the counterweight 4. The number of the second fixed pulleys 82 is 2, the number of the middle movable pulleys 63 is 2, and the movable pulley block of the car is provided with 4 third movable pulleys 5.

Further, a first spandrel girder 11 and a second spandrel girder 12 are arranged at the top of the hoistway 1, a bolster 13 is arranged between the first spandrel girder 11 and the second spandrel girder 12, 2 first fixed pulleys 81 are rotatably connected with the second spandrel girder 12, and 2 second fixed pulleys 82 are rotatably connected with the first spandrel girder 11 and are positioned below between the 2 first fixed pulleys 81. One end of the hoist rope 9 is wound around the first movable sheave 61, the 2 first fixed sheaves 81 and the second movable sheave 62, the second fixed sheave 82 on the left side, the intermediate movable sheave 63 on the left side, the second fixed sheave 82 on the right side and the intermediate movable sheave 63 on the right side in this order after the traction sheave 21 is wound out, and the final end is fixed by the head plate. Because the first movable pulley 61 is arranged close to the position right below the traction machine 2, the second movable pulley 62 is arranged far away from the position right below the traction machine 2, and under the action of the 2 first fixed pulleys 81, the length of the traction rope 9 bypassing between the first movable pulley 61 and the second movable pulley 62 is shortened, namely, the starting time difference of the first movable pulley 61 and the second movable pulley 62 is shortened, so that the left side and the right side of the counterweight 4 are close to synchronous when being lifted, and the stable running of the counterweight 4 is ensured.

Furthermore, the 4 third movable pulleys 5 are arranged at the top of the car 3 in a matrix arrangement manner, that is, the 4 third movable pulleys 5 are uniformly distributed at the top of the car 3, so that the car 3 is uniformly stressed in operation, and the elevator can stably run. The hoistway 1 is provided with a fourth spandrel girder 15 and a fifth spandrel girder 16 which are symmetrically arranged, the fixed pulley block 7 of the car comprises a first side guide pulley 72, a second side guide pulley 73, a third side guide pulley 74, a fourth side guide pulley 75, a fifth side guide pulley 76 and a sixth side guide pulley 77, the first side guide pulley 72, the second side guide pulley 73 and the third side guide pulley 74 are respectively and rotatably connected with the fourth spandrel girder 15, the axial lead of the first side guide pulley 72 and the axial lead of the second side guide pulley 73 are respectively and vertically arranged with the axial lead of the third side guide pulley 74, the fourth side guide pulley 75, the fifth side guide pulley 76 and the sixth side guide pulley 77 are respectively and rotatably connected with the fifth spandrel girder 16, the axial lead of the fourth side guide pulley 75 and the axial lead of the fifth side guide pulley 76 are respectively and vertically arranged with the axial lead of the sixth side guide pulley 77, and the third side guide pulley 74 and the sixth side guide pulley 77 are in the same horizontal plane. After the other end of the traction rope 9 is wound out of the traction sheave 21, one end of the traction rope 9 sequentially bypasses the 1 third movable pulley 5, the first side guide pulley 72, the second side guide pulley 73, the 1 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 the 1 third movable pulley 5, and finally the tail end is fixed on the head supporting plate so as to achieve the purpose of lifting the car 3 through the action of the traction rope 9 on the car fixed pulley block 7 and the car movable pulley block, and driving the car 3 to ascend or descend.

It will be understood that equivalents and modifications will occur to those skilled in the art based on the present utility model and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model.

Claims

1. The utility model provides a counterweight rope winding device, its characterized in that includes the well, installs the hauler at the well top and installs the traction sheave at the hauler output, sliding connection has car and counterweight in the well, and the counterweight is located one side of car, and the top of car is equipped with the car running block, and the top of counterweight is equipped with the counterweight running block, and the top of well is equipped with the car fixed pulley group that corresponds with the car running block and the counterweight fixed pulley group that corresponds to the counterweight running block, the counterweight fixed pulley group includes 2 first fixed pulleys and a plurality of second fixed pulleys that are located first fixed pulleys below, the counterweight running block includes the first running pulley that is close to the hauler position setting down, keeps away from the second running pulley that is located the hauler position down and a plurality of intermediate running pulleys that are located between first running pulley and the second running pulley, is equipped with the hauler rope on the traction sheave, and walk around first running pulley, 2 first fixed pulleys and second fixed pulleys and a plurality of intermediate running pulleys after alternately, the other end of hauler alternately winds the car running block and two ends of hauler rope and two ends of the fixed rope through the top of lift rope in proper order.

2. The counterweight roping arrangement according to claim 1, wherein the roping ratio of the hoisting ropes is 2n:1, n is an integer greater than or equal to 3, the number of second fixed pulleys is n-2, the number of intermediate movable pulleys is n-2, and the car movable pulley block is provided with n third movable pulleys.

3. The counterweight rope winding device according to claim 1, wherein the top of the hoistway is provided with a first spandrel girder and a second spandrel girder, a bolster is arranged between the first spandrel girder and the second spandrel girder, 2 first fixed pulleys are rotatably connected with the second spandrel girder, and a plurality of second fixed pulleys are rotatably connected with the first spandrel girder and positioned below between the 2 first fixed pulleys.

4. Counterweight roping arrangement according to claim 2, characterized in that the roping ratio of the hoisting ropes is 6:1, the quantity of second fixed pulley is 1, and the quantity of middle movable pulley is 1, car movable pulley group is equipped with 3 third movable pulleys.

5. Counterweight roping arrangement according to claim 2, characterized in that the roping ratio of the hoisting ropes is 8:1, the quantity of second fixed pulley is 2, and the quantity of middle movable pulley is 2, car movable pulley group is equipped with 4 third movable pulleys.

6. The counterweight roping apparatus according to claim 4, wherein 3 third movable pulleys arranged at equal intervals are arranged at the top of the car, the fixed pulley block of the car includes 2 third fixed pulleys, a third spandrel girder is arranged on the hoistway, and the 2 third fixed pulleys are rotatably connected with the third spandrel girder and are located right above the third movable pulleys.

7. The counterweight rope winding device according to claim 5, wherein 4 third movable pulleys are arranged at the top of the car in a matrix arrangement manner, a fourth spandrel girder and a fifth spandrel girder which are symmetrically arranged are arranged on the hoistway, the car fixed pulley block comprises 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 pulley, the second side guide pulley and the third side guide pulley are respectively and rotatably connected with the fourth spandrel girder, the axial lead of the first side guide pulley and the axial lead of the second side guide pulley are respectively and vertically arranged with the axial lead of the third side guide pulley, the fourth side guide pulley, the fifth side guide pulley and the sixth side guide pulley are respectively and rotatably connected with the fifth spandrel girder, the axial lead of the fourth side guide pulley and the axial lead of the fifth side guide pulley are respectively and vertically arranged with the axial lead of the sixth side guide pulley, and the third side guide pulley and the sixth side guide pulley are respectively correspondingly arranged.