WO2015021840A1 - Five nodal point pressure-equalising device of steel rope sets for elevator - Google Patents

Abstract

Disclosed is a five nodal point pressure-equalising device of steel rope sets for an elevator, wherein two second spherical nodal points (35) capable of oscillating are provided symmetrically on the two nodal point pressure-equalising assembly; three non-collinear second spherical nodal points (35) capable of oscillating are provided on the three nodal point pressure-equalising assembly (3); the oscillation centre of the two nodal point pressure-equalising assembly (2) is on the same horizontal plane as the oscillation centre of two first spherical nodal points (26) provided thereon, and is collinear; the oscillation centre of the two nodal point pressure-equalising assembly (2), the oscillation centre of a balancing seat (1) and the oscillation centre of the three nodal point pressure-equalising assembly (3) are on the same horizontal plane, and are collinear; and the distance from the oscillation centre of the two nodal point pressure-equalising assembly (2) to the oscillation centre of the balancing seat (1) is 1.5 times the distance from the oscillation centre of the three nodal point pressure-equalising assembly (3) to the oscillation centre of the balancing seat (1). The present pressure-equalising device can automatically adjust the pressure sustained by five sets of steel ropes, ultimately making the pressure sustained by each set of steel ropes the same, thereby enabling the damage caused by unequal pressure sustained by steel ropes for an elevator to be overcome.

Description

 Five-node uniform force device for a wire rope group for an elevator

Technical field

 The invention relates to an improvement of a equalizing device for a steel wire rope set for an elevator, in particular to a five-node of an elevator wire rope group capable of adjusting the force of five sets of steel wire ropes and achieving the same force of each set of steel wire ropes Force device.

Background technique

At present, elevators at home and abroad usually use a traction machine to drive the elevator. The traction elevator suspension lifting system is composed of main components such as a traction sheave, a wire rope set, a car, a balance block system, and the traction elevator suspension system. The friction generated by each wire rope in the wire rope group is wound in the groove of the traction sheave to provide the car lifting or lowering power; under the continuous development of the elevator driving technology, the lifting height and the traveling speed of the elevator have Great improvement, but also put forward higher requirements for the safety and reliability of the elevator itself. In theory, during the use of the elevator, the force of each wire rope in the wire rope set should be the same, and the shape and size of the groove used to wind the wire rope on the traction sheave should also be reasonable; but in actual use, due to For some reasons, the force of each wire rope in the wire rope group is different. This will cause some steel wire ropes to be stressed, and some steel wire ropes have small force; between the steel wire rope with strong force and the groove on the corresponding traction wheel The frictional force will be relatively large, which will cause the friction of the groove on the corresponding traction sheave to be more severe. When the time is long, the shape and size of the groove on the corresponding traction sheave will be changed, resulting in The force of the wire rope work is getting bigger and bigger. If the groove on the traction sheave is worn, the radius is reduced by 0 „1 mm, and the wire rope is oscillated one turn, the wire rope is less moving. 314 mm; in the case of a 20-story building, the traction sheave is about 100 摆动. , then the steel wire rope should be less than 31.4 mm, after the test, it is found that the 3 wire rope should be more than 3000 cattle; when the wire rope is in the wire rope When the force is uneven, the creeping phenomenon occurs between the wire rope and the traction sheave with small force. The creep between the wire rope and the traction sheave causes the wire rope and the traction sheave to wear. The higher the floor, the more serious the above situation. Therefore, the long-term use of the heavy-duty steel wire rope is easy to break during use, resulting in an elevator safety accident; at the same time, the wire rope with small force will be damaged due to the wear of the traction sheave, if the damage is serious , it will also cause the wire rope to break, which will cause the elevator safety accident. For this reason, we have developed a wire rope group for elevators that can adjust the force of the five sets of wire ropes and make the force of each set of wire ropes the same. Five-node uniform device

Summary of the invention

 SUMMARY OF THE INVENTION The object of the present invention is to provide a five-node equalizing device capable of adjusting the forces of five sets of steel wire ropes and achieving the same force for each set of wire ropes to achieve the same set of elevator wire ropes in order to overcome the deficiencies of the prior art.

In order to achieve the above object, the technical solution adopted by the present invention is: a five-node equalizing device for an elevator wire rope set, comprising a balance seat, a 2-node uniform force component, and a 3-node equal force component; the balance seat is swingably disposed On the base; the 2-node uniform force assembly is swingably disposed at one end of the balance seat; the 3-node equal force assembly is swingably disposed at the other end of the balance seat; the 2-node uniform force assembly is along the center thereof Two first spherical nodes are symmetrically disposed; the center of oscillation of the two-node uniform force component is located on a central surface thereof; a center of each first spherical node is provided with a first pass; the first through hole Used to install a wire rope; the three-node equal force component is provided with three second spherical nodes; the three second spherical nodes are not on the same straight line; the swing center of the three-node equalizing component is located through three nodes a center of gravity of the equal force component and a line perpendicular to the three-node equal force component; a second through hole is disposed at a center of each of the second spherical nodes; the second through hole is used to install a wire rope; The swing center of the node uniform force component is on the same horizontal plane as the swing center of the three second spherical nodes disposed thereon; the swing center of the 2-node uniform force component and the two first spherical nodes disposed thereon The swing center is on the same horizontal plane and is collinear; the swing center of the 2-node uniform force assembly, the swing center of the balance seat, and the swing center of the 3-node equal force assembly are on the same horizontal plane, and are collinear; 5倍。 The distance from the swing center of the three-node uniform force component to the swing center of the balance seat is 1.5 times.

 Preferably, the bottom of the balance seat is provided with a first spherical protrusion; the base is provided with a first spherical cavity; the first spherical protrusion is placed into the first spherical cavity, the first spherical protrusion It can swing around the first spherical cavity.

 Preferably, a lower portion of the 2-node uniform force assembly is provided with a swing frame; a center surface of the 2-node uniform force assembly coincides with a center surface of a swing frame disposed thereon; and a bottom portion of the swing frame is provided with a second a spherical protrusion; one end of the balance seat is provided with a second spherical cavity; the other end is provided with a third spherical cavity; the second spherical protrusion is disposed in the second spherical cavity; the second spherical protrusion can be wound a second spherical cavity swing; a lower portion of the 3-node uniform force assembly is provided with a third spherical protrusion; a center of the third spherical convex swing is located at a center of gravity passing through the 3-node uniform force component and a vertical 3-node uniform force component The third spherical protrusion is disposed in a third spherical cavity; the third spherical protrusion is swingable around the third spherical cavity.

 Preferably, the two-node uniform force component is symmetrically disposed with two fourth spherical cavities along its central plane; each of the fourth spherical cavities is provided with a first spherical node, and each of the first spherical nodes can be wound A fourth spherical cavity swing of the first spherical node is set.

Preferably, the 2-node uniform force component is provided with a first screw rolling, and the swinging bracket can be fixed to the lower part of the 2-node uniform force component through the first screw hole. Preferably, the three-node uniform force component is provided with three fifth spherical cavities; that the three fifth spherical cavities are not collinear; each fifth spherical cavity is provided with a second spherical node, each of which is The second spherical nodes are swingable about a fifth spherical cavity in which the second spherical node is disposed.

 Preferably, the 3-node uniform force component is provided with a second screw hole through which the third spherical protrusion can be fixed at a lower portion of the 3-node uniform force assembly.

 Preferably, the base is uniformly provided with a fixing hole to facilitate the installation of the base.

 Preferably, the five-node equalizing device is mounted on the rope end or the tail of the wire rope set.

 Due to the use of the above technical solutions, the present invention has the following advantages over the prior art:

The five-node equalizing device of the steel wire rope group for an elevator according to the present invention, wherein the two-node equal force component and the three-node equal force component can swing around the balance seat respectively; the balance seat can swing around the base, and the two nodes are evenly distributed. Two second spherical nodes are symmetrically disposed on the component, each of the second spherical nodes can swing around the two-node equalizing component, and the three-node equalizing component is provided with three second spherical nodes; The second spherical nodes are not on the same straight line; the swing center of the 3-node uniform force component is located on a straight line passing through the center of gravity of the 3-node uniform force component and perpendicular to the 3-node uniform force component; and the 3-node uniform force component The center of the swing is on the same horizontal plane as the center of oscillation of the three second spherical nodes disposed thereon; the center of oscillation of the two-node uniform force assembly is at the same level as the center of oscillation of the two first spherical nodes disposed thereon And collinear; the swing center of the 2-node uniform force component, the swing center of the balance seat, and the swing center of the 3-node equal force component are on the same horizontal plane, and are collinear; the 2-node uniform force component The present invention is capable of automatically adjusting the force of the five sets of wire ropes, and the present invention is capable of automatically adjusting the force of the swing center of the three-node uniform force component to the swing center of the balance seat. Reach In the steady state, the force of each set of wire ropes will be the same, which can overcome the damage caused by the different force of the wire rope group of the elevator, improve the service life of the wire rope set, and thereby improve the safety of the electric brother.

Appendix

 The technical solution of the present invention is further described below with reference to the accompanying drawings:

 1 is a partial sectional view of a five-node equalizing device of an elevator wire rope set according to the present invention: f is shown;

 Figure 2 is an enlarged view of a cross-sectional view of A A in Figure 1;

 Figure 3 is an enlarged plan view showing a front view of a three-node equalizing force assembly for a five-node equalizing device of an elevator wire rope set according to the present invention;

 Figure 4 is a cross-sectional view taken along line B B of Figure 3;

 Among them: 1, balance seat; 2, 2 node equal force component; 3, 3 node equal force component; 4, second spherical cavity; 5, third spherical cavity; 6, first spherical convex; 7, first spherical Cavity; 8, base; 9, fixed hole; 2 1, 2 node uniform force component body; 2 2, fourth spherical cavity; 2 3, first screw hole; 24, swing frame; 2 5, second spherical protrusion 2, first spherical node; 2 7, first through hole; 3 1, 3 node uniform force component body; 32, fifth spherical cavity; 3 3, second screw hole; 34, third spherical protrusion; 35, the second spherical node; 36, the second ceremony. detailed description

 The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

1, 2, 3, and 4 are five-node equalizing devices for a wire rope group for an elevator according to the present invention, which are installed on a rope head or a rope tail of a wire rope set, and include a balance seat 1, a base 8, 2 a node equalizing component 2, a 3-node equalizing component 3; the balancing seat 1 is swingably disposed on the base 8; the 2-node equalizing component 2 and the 3-node equalizing component 3 respectively have There is a central symmetrical structure in which a 2-node uniform force component is swingably disposed at one end of the balance seat 1; and a 3-node uniform force component 3 is swingably disposed at the other end of the balance seat 1; the 2-node uniform force component 1 is Two first spherical nodes 26 are symmetrically disposed along a central surface thereof; the center of oscillation of the two-node uniform force assembly 2 is located on a central surface thereof; and a first through hole 27 is disposed at a center of each of the first spherical nodes 26 The first through hole 24 is for mounting a wire rope (not shown); the three node equalizing force component 3 is provided with three second spherical nodes 35; the three second spherical nodes 35 are not in the same line The swing center of the 3-node uniform force assembly 3 is located on a straight line passing through the center of gravity of the 3-node uniform force assembly 3 and perpendicular to the 3-node equal force assembly 3; a second through hole is disposed in the center of each second spherical node 35 36; the second through hole 36 is for mounting a wire rope (not shown); the swing center of the 3-node uniform force assembly 3 is on the same level as the swing center of the three second spherical nodes 35 disposed thereon The swing center of the 2-node uniform force component 2 and the 1 disposed thereon The center of oscillation of the first spherical node 26 is on the same horizontal plane, and is collinear; the swing center of the 2-node uniform force assembly 2, the swing center of the balance seat 1 and the swing center of the 3-node equal force assembly 3 are at the same horizontal plane. The distance between the swing center of the 2-node uniform force assembly 2 and the swing center of the balance seat 1 is 1 to 5 times the swing center distance of the 3-node uniform force assembly 3 to the swing center of the balance seat 1.

In this embodiment, as shown in FIG. 1, 2, 3, and 4, the bottom of the balance base 1 is provided with a first spherical protrusion 6; the base 8 is provided with a first spherical cavity 7; a spherical protrusion 6 is inserted into the first spherical cavity 7, the first spherical protrusion 6 is swingable around the first spherical cavity 7; a lower portion of the 2-node uniform force assembly 1 is provided with a swing frame 24; The center plane of the node level force assembly 2 coincides with the center plane of the swing frame 24 disposed thereon; a second spherical cavity 4 is disposed; the other end is provided with a third spherical cavity 5; the second spherical protrusion 24 is disposed in the second spherical cavity 4; and the second spherical protrusion 24 is rotatable around the second spherical cavity 4 a third spherical protrusion 34 is disposed at a lower portion of the 3-node uniform force assembly 3; a swing center of the third spherical protrusion 34 is located at a center of gravity passing through the 3-node uniform force assembly 3 and a vertical 3-node uniform force assembly a third spherical protrusion 34 is disposed in the third spherical cavity 5; the third spherical protrusion 34 is swingable around the third spherical cavity 5; the 2-node uniform force component 2 is along The center plane is symmetrically disposed with two fourth spherical cavities 22; each of the fourth spherical cavities 22 is provided with a first spherical node 26, and each of the first spherical nodes 26 can be disposed around the first spherical node 26 The four-ball-shaped cavity 22 is oscillated; the two-node uniform force assembly 2 is provided with a first screw hole 23 through which the swing frame 24 can be fixed at the lower portion of the 2-node uniform force assembly 2; The three-node uniform force assembly 3 is provided with three fifth spherical cavities 32; the three fifth spherical cavities 32 are not collinear; each fifth ball A second spherical node 35 is disposed in each of the shaped cavities 32, and each of the second spherical nodes 35 is swingable about a fifth spherical cavity 32 in which the second spherical node 35 is disposed; the 3-node uniform force component 3 is disposed on the a second screw hole 33, the third spherical protrusion 34 can be fixed to the lower portion of the 3-node uniform force assembly 3 through the second screw hole 33; the base 8 is uniformly provided with a fixing ceremony 9 for conveniently mounting the base 8 .

 The three-node equalizing device of the elevator wire rope set of the invention can be applied as a unit to a multi-node equalizing device, such as a 12-node equalizing device, a 0-node equalizing device, and at this time, the base 8 is Balance seat 1.

Due to the application of the above technical solutions, the present invention has the following advantages over the prior art - The node uniform force component and the 3-node equal force component can swing around the balance seat respectively; the balance seat can swing around the base, and the 2 nodes equal force components are symmetrically arranged with 2 second spherical nodes, each second spherical node Both can swing around a 2-node uniform force component, and the 3 node equal force components are provided with 3 second spherical nodes; the 3 second spherical nodes are not on the same straight line; the swing center of the 3-node uniform force component Located on a line passing through the center of gravity of the 3-node uniform force assembly and perpendicular to the 3-node equal force assembly; at the same time, the swing center of the 3-node equal force assembly is at the same level as the swing center of the three second spherical nodes disposed thereon The swing center of the two-node uniform force component is on the same horizontal plane as the swing center of the two first spherical nodes disposed thereon, and is collinear; the swing center of the two-node equal force component, the balance seat The swing center and the swing center of the 3-node uniform force component are on the same horizontal plane and are collinear; the distance from the swing center of the 2-node uniform force component to the swing center of the balance seat is a swing of the 3-node uniform force component Center to balance the swing center seat 1.5 times the distance. Thus, the five-node equalizing device of the present invention utilizes the pendulum and lever principles to have an independent mechanical relationship between each set of independent traction wire ropes and other wire ropes. Through this combination mechanism, when the traction wire rope set is subjected to a force, a change in the force of any one of them is transmitted to the spherical node, and the spherical node is swung, and the force swing of the spherical node causes The corresponding 2-node equal force component or 3-node equal force component oscillates around its swing center to balance the forces of its respective spherical nodes, ie using the principle of leverage (torque equals force multiplied by distance) , so that the force of each set of wire ropes is equal. At the same time, the force swing of the 2-node equal force component or the 3-node equal force component will also cause the balance seat 1 to swing on the base 8, thus pushing the overall force between the 2-node equalization component and the 3-node equalization component into - Line balance; and each set of wire ropes and each set of wire ropes can also be balanced by the principle of the bar, so that a set of interlocking levers The weighing mechanism associates each of the traction wire ropes, and each wire rope has a fixed proportion of the force component in the whole set of traction wire ropes, so that each traction wire rope is equally stressed, and the elevator traction is achieved. Each of the traction ropes in the wire rope group is wound in the traction sheave groove to produce the same purpose.

 The solution of the invention can automatically adjust the force of the five sets of steel wire ropes. When the invention reaches a steady state, the force of each set of steel wire ropes will be the same, thereby overcoming the hazard caused by the different force of the wire rope group of the elevator, and improving the wire rope. The service life of the group and thus the safety of the elevator.

 The above embodiments are only intended to illustrate the technical concept and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and not to limit the scope of the present invention. Equivalent changes or modifications made in substantial form are intended to be included within the scope of the invention.

Claims

1. A five-node force-equalizing device for an elevator wire rope set, characterized in that it includes a balancing seat, a base, a 2-node force-equalizing component, and a 3-node force-equalizing component; the balancing seat is swingably mounted on the base; The 1-node force-equalizing component is swingably arranged at one end of the balance base; the 3-node force-equalizing component is swingably disposed at the other end of the balance seat; the 2-node force-equalizing component is symmetrically arranged along its center plane Two first spherical nodes are provided; the swing center of the two-node uniform force component is located on its center plane; a first through hole is provided at the center of each first spherical node; the first through hole is used to Install the steel wire rope; The 3-node uniform force component is provided with 3 second spherical nodes; the 3 second spherical nodes are not on the same straight line; the swing center of the 3-node uniform force component is located through the 3-node uniform force component The center of gravity of the component is perpendicular to the straight line of the 3-node force-equalizing component; a second through hole is provided at the center of each second spherical node; the second through-hole is used to install the wire rope; the swing center of the 3-node force-equalizing component It is on the same horizontal plane as the swing center of the three second spherical nodes arranged on it; the swing center of the two-node uniform force component is on the same horizontal plane as the swing center of the two first spherical nodes arranged on it, And collinear; The swing center of the 2-node force-equalizing component, the swing center of the balance seat and the swing center of the 3-node force-equalizing component are on the same horizontal plane, and collinear; The swing center of the 2-node force-equalizing component is to The distance between the swing center of the balance seat is 1.5 times the distance from the swing center of the 3-node uniform force component to the swing center of the balance seat. 2. The five-node force equalizing device of the elevator wire rope group according to claim 1, characterized in that: the bottom of the balance seat is provided with a first spherical protrusion; the base is provided with a first spherical cavity; The first spherical protrusion is placed in the first spherical cavity, and the first spherical protrusion can swing around the first spherical cavity. 3. Based on the five-node force equalizing device of the elevator wire rope assembly according to claim 1, It is characterized in that: a swing frame is provided at the lower part of the 2-node force-equalizing assembly; the center plane of the 1-node force-equalizing assembly coincides with the center plane of the swing frame provided thereon; the bottom of the swing frame is provided with a third Two spherical protrusions; one end of the balance seat is provided with a second spherical cavity; the other end is provided with a third spherical cavity; the second spherical protrusion is provided in the second spherical cavity; the second spherical protrusion can Swing around the second spherical cavity; The lower part of the 3-node force-equalizing component is provided with a third spherical protrusion; the swing center of the third spherical protrusion is located through the center of gravity of the 3-node force-equalizing component and perpendicular to the 3-node force-equalizing component On the straight line of the component; the third spherical protrusion is arranged in the third spherical cavity; the third spherical protrusion can swing around the third spherical cavity. 4. The five-node force equalizing device of the elevator wire rope group according to claim 1 or 3, characterized in that: the 2. node force equalizing component is provided with two fourth spherical cavities symmetrically along its central plane. ; Each fourth spherical cavity is provided with a first spherical node, and each first spherical node can swing around the fourth spherical cavity in which the first spherical node is arranged. 5. The five-node force equalizing device of the elevator wire rope assembly according to claim 3, characterized in that: the two-node force equalizing component is provided with a first screw, and the swing frame can be moved through the first screw hole. Fixed at the lower part of the 2-node uniform force component. 6. The five-node force-equalizing device of the elevator wire rope group according to claim 1 or 3, characterized in that: the three-node force-equalizing component is provided with three fifth spherical cavities; the three fifth spherical cavities The cavities are not collinear; each fifth spherical cavity is provided with a second spherical node, and each second spherical node can swing around the fifth spherical cavity in which the second spherical node is arranged. 7. The five-node force equalizing device of the elevator wire rope group according to claim 3, characterized in that: the three-node force equalizing component is provided with a second screw, and the third screw can be connected through the second screw hole. The spherical protrusion is fixed on the lower part of the 3-node uniform force component. 8. The five-node force equalizing device of the elevator wire rope group according to claim 1 or 2 or 3 or 5 or 7, characterized in that: the base is evenly distributed with fixing holes to facilitate installation. 9. A five-node force-equalizing device for an elevator wire rope set, characterized in that it includes a balancing seat, a base, a 2-node force-equalizing component, and a 3-node force-equalizing component; the balancing seat is swingably disposed on the base; The 2-node force-equalizing component is swingably arranged at one end of the balance base; the 3-node force-equalizing component is swingably disposed at the other end of the balance seat; the 2-node force-equalizing component has a centrally symmetrical structure along its center Two first spherical nodes are arranged symmetrically to each other to install steel wire ropes respectively; the three-node uniform force component has a centrally symmetrical structure and is provided with three second spherical nodes for respectively installing steel wire ropes; the two nodes are uniformly The swing center of the force component, the swing center of the balance seat and the swing center of the 3-node force-equalizing component are on the same horizontal plane and collinear; the distance from the swing center of the 2-node force-equalizing component to the swing center of the balance seat is 3 The distance from the swing center of the node uniform force component to the swing center of the balance seat is 1. 5 times. 10. The five-node force equalizing device of the elevator wire rope assembly according to claim 9, characterized in that: the swing center of the two-node force equalizing component is located on its center plane; the center of each first spherical node is provided with The first through hole; the first through hole is used to install the wire rope. 1 1. The five-node force equalizing device of the elevator wire rope assembly according to claim 9, characterized in that: the three second spherical nodes are not on the same straight line; the swing center of the three-node force equalizing component is located through The center of gravity of the 3-node uniform force component is on a straight line perpendicular to the 3-node uniform force component; a second through hole is provided in the center of each second spherical node; the second through hole is used to install a steel wire rope; the 3-node uniform force component The swing center of the component is on the same horizontal plane as the swing centers of the three second spherical nodes arranged on it. 1 2. The five-node force equalizing device of the elevator wire rope group according to claim 9, characterized in that: the bottom of the balance seat is provided with a first spherical protrusion; the base is provided with a first spherical cavity; The first spherical protrusion is placed in the first spherical cavity, and the first spherical protrusion can swing around the first spherical cavity. 1 3. The five-node force-equalizing device of the elevator wire rope group according to claim 9, characterized in that: a swing frame is provided at the lower part of the 2-node force-equalizing component; the center plane of the 2-node force-equalizing component and The center planes of the swing frames arranged thereon coincide with each other; the bottom of the swing frame is provided with a second spherical protrusion; one end of the balance seat is provided with a second spherical cavity; the other end is provided with a third spherical cavity; the The second spherical protrusion is arranged in the second spherical cavity; the second spherical protrusion can swing around the second spherical cavity; the lower part of the 3-node force equalizing component is provided with a third spherical protrusion; the third spherical protrusion The swing center of the protrusion is located on a straight line that passes through the center of gravity of the 3-node uniform force component and is perpendicular to the 3-node uniform force component; the third spherical protrusion is disposed in a third spherical cavity; the third spherical protrusion can be wound around The third spherical cavity swings. 14. The five-node force equalizing device of the elevator wire rope assembly according to claim 9, characterized in that: the two-node force equalizing component is provided with two fourth spherical cavities symmetrically along its central plane; each First spherical nodes are provided in the fourth spherical cavity, and each first spherical node can swing around the fourth spherical cavity in which the first spherical node is arranged. 15. The five-node force equalizing device of the elevator wire rope assembly according to claim 9, characterized in that: the two-node force equalizing component is provided with a first screw, and the swing can be made through the first screw hole. The frame is fixed on the lower part of the 2-node uniform force component. 16. The five-node force-equalizing device of the elevator wire rope group according to claim 9, characterized in that: the three-node force-equalizing component is provided with three fifth spherical cavities; the three fifth spherical cavities Not collinear; each fifth spherical cavity is provided with a second spherical node, so Each second spherical node is swingable about a fifth spherical cavity in which the second spherical node is disposed. 17. The five-node force equalizing device of the elevator wire rope group according to claim 13, characterized in that: the three-node force equalizing component is provided with a second screw hole, and the third screw hole can be connected through the third screw hole. Three spherical protrusions are fixed on the lower part of the 3-node uniform force component. 18. The five-node force equalizing device of the elevator wire rope group according to claim 9, characterized in that: it is installed at the rope head or rope tail of the steel wire rope group.