KR101877804B1

KR101877804B1 - Two nodal point pressure-equalising device of steel rope sets for elevator

Info

Publication number: KR101877804B1
Application number: KR1020167006484A
Authority: KR
Inventors: 싱화 쉬
Original assignee: 쑤저우 밸런스트 트랜스미션 이큅먼트 컴퍼니 리미티드
Priority date: 2013-08-12
Filing date: 2014-07-09
Publication date: 2018-07-13
Also published as: WO2015021837A1; CN104370187A; JP6276858B2; EP3034447A4; KR20160067838A; JP2016529180A; EP3034447A1; CN104370187B

Abstract

The present invention discloses a two-node compensator for a group of elevator wire cables, wherein the two-node compensator of the elevator wire cable group comprises a compensator body, the compensator body being rotatably mounted on the pedestal Wherein two spherical nodes are symmetrically installed in the main body of the compensation apparatus, a through hole is provided at the center of the spherical node, the through hole is for mounting a wire cable group, Wherein the center of rotation of the compensating device body is located at the center line of the compensation device body and the center of rotation of the intermediate spherical node and the center of rotation of the compensating device main body are in the same horizontal plane, It is on a straight line. The method of the present invention can adjust the force applied to the two groups of wire cable groups. When the present invention reaches a stable state, the forces received by the two groups of wire cable groups become equal to each other, It is possible to overcome the risk caused by the unevenness and to improve the service life of the wire cable group, thereby enhancing the safety of the elevator.

Description

TECHNICAL FIELD [0001] The present invention relates to a two-node compensator for a group of elevator wire cables,

The present invention relates to a compensating device for a group of wire cables for elevators, and more particularly to a compensating device for a group of wire cables for an elevator that allows two groups of wire cable groups to be adjusted for the forces received, To a two-node compensation device.

Currently, domestic and international elevators usually use tractors to drive elevators. The hoist elevator suspension system consists of major parts such as hoisting wheels, wire cable group, lift car, and counterbalance system. The hoisting elevator suspension raising system provides power to lift cars up or down by the frictional forces generated by the intermediate wire cable in the wire cable group winding through the grooves of the hoisting wheels.

Elevation elevation and speed of the elevator have both been greatly increased by controlling the continuous development of elevator driving technology. At the same time, they submitted even higher demands for the safety and reliability of the elevator itself.

In theory, during the process of using an elevator, the force of the intermediate wire cable in the wire cable group must be the same, and the shape and size of the groove used to wind the wire cable on the hoisting wheel must be the same. However, in actual use, the force received by the intermediate wire cable in the wire cable group is varied due to various reasons. In this case, some of the wire cables receive a large force and some of the wire cables receive less force. The frictional force existing between the wire cable having a large receiving force and the corresponding groove on the cogged wheel becomes relatively large and the friction of the corresponding groove on the cogged wheel becomes more severe. The longer the time, the easier it is to change the shape and size of the grooves on the hoisting wheels. The more power the wire cable receives, the more power it receives. If the radius of the hoop is reduced by 0.1 mm after the groove on the hoop is worn, the wire cable will move 0.314 mm less if the hoop is rotated one turn. Taking an example of a twenty story board, the hoisting wheels must rock about 100 times, and in this case the corresponding wire cable will move 31.4 mm less.

Through the experiment, the wire cable needs to receive more than 3000 N of force. If the force of the wire cable in the wire cable group is unbalanced, interlocking phenomenon occurs between the wire cable with small receiving force and the crawler wheel, and the interlocking between the wire cable and the crawler wheel causes the wire cable and the crawler wheel to wear off The higher the layer, the more severe the situation.

As a result, wire cables that are used for a long period of time are likely to be cut off during use, resulting in elevator accidents. At the same time, a small wire cable that receives power is damaged by the damage of the hoisting wheel. If the damage is severe, the wire cable is cut off and the elevator safety accident is caused.

To solve this problem, the inventors have developed a two-node compensator of a wire cable group for an elevator that allows two groups of wire cable groups to be adjusted for the force received, Respectively.

It is an object of the present invention to overcome the problems existing in the prior art in that two groups of wire cables can be adjusted for the force received and two groups of wire cables And to provide a compensation device.

In order to achieve the above object, the technical solution of the present invention is as follows. A two-node compensator for a group of elevator wire cables, wherein the two-node compensator of the elevator wire cable group comprises a compensator body, the compensator body being rotatably mounted on the pedestal, And the spherical node is rotatable around the main body of the compensator, and the center of rotation of the compensator main body is connected to the center line of the compensator main body, And the center of rotation of the medial spherical node and the center of rotation of the compensator body are on the same horizontal plane and on one straight line.

Preferably, two spherical chambers are symmetrically installed in the compensation apparatus main body, and the spherical nodes are installed in the mediating spherical chamber and can rotate.

Preferably, a rotation frame is provided at a lower portion of the compensation apparatus main body, a center line of the compensation apparatus main body and a center line of the rotation frame are on a straight line, arc-shaped protrusions are provided at the bottom of the rotation frame, The pedestal is provided with arc-shaped grooves, and when the arc-shaped protrusions are inserted into the arc-shaped grooves, the arc-shaped protrusions surround the arc-shaped grooves and can rotate.

Preferably, the compensation device body is provided with a screw hole, and the screw can fix the rotation frame to the lower portion of the compensation device body through the screw hole.

Preferably, the pedestal is provided with a fixing hole in order to facilitate mounting of the pedestal.

Preferably, a through hole is provided in the center of the spherical node to receive a wire cable.

By using the above-described technology, the present invention has the following advantages over the existing technology.

In the two-node compensator of the wire cable group for an elevator according to the present invention, the compensator main body is installed on a pedestal so as to be rotatable, and two spherical nodes are symmetrically installed in the compensator main body, Wherein the through hole is provided at the center of the node, the through hole is for mounting a wire cable group, the spherical node surrounds and rotates the main body of the compensator, And the center of rotation of the intermediary spherical node and the center of rotation of the compensator body are on one and the same straight line in the same horizontal plane. The method of the present invention can adjust the force applied to the two groups of wire cable groups. When the present invention reaches a stable state, the forces received by the two groups of wire cable groups become equal to each other, It is possible to overcome the risk caused by the unevenness and to improve the service life of the wire cable group, thereby enhancing the safety of the elevator.

1 is a cross-sectional view of a two-node compensator of a group of wire cables for an elevator of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be further described in detail in conjunction with the following figures and specific embodiments.

FIG. 1 is a two-node compensator of a group of wire cables for an elevator according to the present invention. The compensator is mounted at the head or the end of a cable of a wire cable group (not shown). The two-node compensator of the elevator wire cable group includes a compensator main body 1 and the compensator main body 1 is installed on the pedestal 5 so as to be rotatable, The through hole 9 is provided in the center of the spherical node 8 and the through hole 9 is formed in the center of the spherical node 8, And the spherical node 8 surrounds and rotates or swings around the compensation apparatus main body 1 and the center of rotation of the compensation apparatus main body 1 is connected to the center line of the compensation apparatus main body 1, And the center of rotation of the intermediate spherical node 8 and the center of rotation of the compensator body 1 are on the same horizontal plane and on one straight line.

In this embodiment, as shown in Fig. 1, the compensation apparatus main body 1 is provided with two spherical chambers 2 symmetrically along the center line thereof, and the spherical nodes 8 are connected to the medial spherical chamber 2 ) And is rotatable. The center line of the compensation apparatus main body 1 and the center line of the rotation frame 4 are on one straight line and the rotation frame 4 is located on the lower side of the compensation apparatus main body 1, Shaped projections 6 are provided at the bottom of the arcuate grooves 7 and arcuate grooves 7 are provided in the pedestal 5. When the arcuate projections 6 are inserted into the arcuate grooves 7, Can surround the arc groove 7 and can rotate or swing. A screw hole 3 is provided in the main body 1 of the compensation device and a screw (not shown) can fix the rotating frame 4 to the lower portion of the compensation device body 1 through the screw hole 3 . In order to facilitate the mounting of the pedestal 5, the pedestal 5 is provided with a fixing hole 10.

In the present embodiment, the arc-shaped protrusions 6 may be provided with spherical protrusions, and the corresponding arcuate grooves 7 may be provided with spherical grooves.

By operating the above-described technology, the present invention has the following advantages over the prior art. In the two-node compensating device of the elevator wire cable group according to the present invention, the compensation device main body is installed on the pedestal so as to be able to swing, so that the forces at both ends thereof are balanced through the swinging motion around the rotation center.

In the compensation apparatus body, two spherical nodes are symmetrically arranged, and a through hole is provided at the center of the spherical node, the through hole is for mounting a wire cable group, The center of rotation of the compensating device main body is located at the center line of the compensating device main body and the center of rotation of the intermediate spherical node and the center of rotation of the compensating device main body are in the same horizontal plane, It is on a straight line. As described above, the two-node compensating apparatus of the present invention uses a rocking beam and a lever principle so that each group of independent hoisting wire cables and other wire cables have a mutually related mechanical relationship, Under the condition that the wire cable group receives the force, if any one of the wire cables receives a change in force, it can be transmitted to the spherical node, and if the spherical node is pivoted by force, So as to surround and center the center of rotation thereof. In this case, the force received by the corresponding spherical node is transmitted to the other spherical node, so that the forces received by the two spherical nodes are balanced, ie, the lever principle (moment is equal to the force and distance) Make sure all forces are equal.

The technical idea of the present invention is that the two groups of wire cables can be adjusted for the force received and when the present invention reaches a stable state the forces received by the two groups of wire cables are equal so that the force received by the elevator wire cable group It is possible to overcome the risk caused by the unevenness and to increase the service life of the wire cable group, thereby enhancing the safety of the elevator.

It is to be understood that the above-described embodiment is intended to explain the technical ideas and features of the present invention and its object is to enable a technician who is well-versed in the present invention to understand the contents of the present invention, And the like. All equally effective conversions or modifications that proceed in accordance with the spirit and scope of the present invention should be included within the scope of protection of the present invention.

1: compensation device body
2. Rectangular chamber
3. Screw hole
4. Rotating frame
5. Stand
6. Arch-shaped projection
7. arc groove
8. Older nodes
9. Through hole
10. Fixing hole

Claims

Wherein the compensation apparatus main body is installed on a pedestal so that the compensation apparatus main body can swing, two spherical nodes are symmetrically installed in the compensation apparatus main body, the spherical node and the wire cable group are connected to each other, The spherical node may rotate or swing relative to the vertical axis of the compensator body and the rotational center that rotates relative to the vertical axis of the compensator body is located at the centerline of the compensator body and rotates about the vertical axis of the median spherical node Wherein the center of rotation and the center of rotation of the compensator body are on one horizontal plane and on one straight line at the same time.

The method according to claim 1,
Wherein two spherical chambers are symmetrically installed in the main body of the compensation apparatus, and the spherical node is installed in an intermediate spherical chamber and can rotate or swing.

3. The method according to claim 1 or 2,
The center of the main body of the compensation device and the center line of the rotation frame are located on one straight line, and arc-shaped protrusions are provided at the bottom of the rotation frame, and the arc- Wherein the arc-shaped protrusion surrounds and rotates the arc-shaped groove when the arc-shaped protrusion is inserted into the arc-shaped groove.

The method of claim 3,
Wherein the compensation device body is provided with a screw hole and the screw can fix the rotating frame to the lower part of the compensation device body through the screw hole.

The method according to claim 1,
And a fixing hole is disposed on the pedestal for facilitating mounting of the pedestal.

The method according to claim 1,
Wherein a through hole is provided at the center of the spherical node to receive a wire cable.