CN107285165B

CN107285165B - Elevator compensation cable

Info

Publication number: CN107285165B
Application number: CN201710670549.5A
Authority: CN
Inventors: 钱松; 顾凯飞
Original assignee: SJEC Corp
Current assignee: SJEC Corp
Priority date: 2017-08-08
Filing date: 2017-08-08
Publication date: 2023-10-27
Anticipated expiration: 2037-08-08
Also published as: CN107285165A

Abstract

The invention relates to an elevator compensation cable, which adopts a structure that a plurality of conductor units with insulators are embedded in the compensation cable, and an energizing circuit is formed by U-shaped conductor unit connecting pieces with two ends connected end to end and connected into a safety loop. If the compensating cable is broken partially during use, the dead weight of the compensating cable is large, so that the part of the conductor unit with the insulator is broken, the safety loop of the elevator is disconnected, the elevator is prevented from running continuously under the condition that the compensating cable is broken partially, and the running safety performance of the elevator is greatly improved.

Description

Elevator compensation cable

Technical Field

The invention relates to a weight balance compensation component, in particular to an elevator compensation cable.

Background

As the average height of new buildings in cities is continuously refreshed, elevator products at high-rise stations are becoming more and more accepted. From the technical point of view of elevators, the design difficulty of elevator products with large lifting height is that: the increase in mass of the suspension rope system is obvious, and the selection of a proper compensation cable (chain) becomes very important according to the characteristics of the traction elevator drive and the design requirements of the compensation device. In the market, the existing compensation cable (chain) structure mainly comprises: plastic-coated structure, full plastic structure and rope threading structure. The principle of analyzing the traction driving elevator is known that if the compensating cable (chain) hung on the car bottom and the counterweight breaks accidentally, the result is very dangerous, the falling compensating cable (chain) damages the pit part, the weight is too large because of the poor quality between the car and the counterweight side, the traction hanging rope possibly slips in the traction sheave because of insufficient traction force, so that the accident of the elevator car to be pushed or squat is caused, if personnel exist in the car, and certain personnel injury is also possibly caused.

The Chinese patent publication No. CN 101445200B discloses an elevator car compensation chain, which comprises a plurality of first chain links and a plurality of second chain links, wherein the first chain links and the second chain links are mutually and alternately fastened, the hole length of the first chain links and the hole width of the second chain links along the longitudinal direction are longer than the hole width of the transverse direction, and the hole width of at least one of the first chain links and the second chain links is longer than the hole width of the middle part of the ring hole.

The invention of China with the publication number of CN 103398142A discloses a novel elevator balance compensation chain, which comprises a metal chain, wherein a wrapping layer is wrapped outside the metal chain, an outer sheath is arranged outside the wrapping layer, and a fiber layer is arranged outside the outer sheath.

The existing elevator compensation cable (chain) is connected with the bottom of the car through an end connection device, one end of the existing elevator compensation cable (chain) is connected with the bottom of the car, the electric safety device does not detect the fracture condition of the compensation cable (chain), the service condition of the compensation cable (chain) can be checked only when the elevator is maintained, and certain potential safety hazards exist.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide a novel elevator compensation cable capable of greatly improving the operation safety performance of an elevator.

In order to achieve the above purpose, the invention provides an elevator compensation cable, one end of which is connected with the bottom of an elevator car, and the other end of which is connected with the bottom of an elevator counterweight, comprising a metal inner core, a conductor unit, an intermediate insulating layer, a flexible tensile medium and a conductor unit connecting piece; the outer part of the conductor unit is provided with an insulating layer, and the conductor unit is uniformly arranged in the middle insulating layer; the middle insulating layer is positioned outside the metal inner core; the conductor units are respectively connected adjacently at two ends of the compensation cable through at least one conductor unit connecting piece, after an electrified line which is communicated end to end is formed, the conductor units are connected into an elevator safety loop at the side of a car or the side of a counterweight, and the flexible tensile medium is used for bearing the dead weight of the compensation cable; when the compensating cable breaks or the local position is abnormally stretched and deformed, the formed power-on line is disconnected, so that a safety loop is disconnected, and the main power supply of the elevator is cut off.

Advantageously, the compensation cable further comprises an outer plastic coating layer, said intermediate insulating layer being located outside said metallic inner core and inside said outer plastic coating layer. The outer plastic coating layer plays a role in protection and fixation.

Preferably, the conductor unit connector is a U-shaped conductor connection bar.

Preferably, the conductor units are uniformly arranged on two sides of the metal inner core; or uniformly arranged on one side of the metal inner core.

Preferably, the flexible tensile medium is symmetrically arranged inside the metal inner core, and the number of the flexible tensile medium is a multiple of 2 or 3.

The invention has the advantages that a plurality of conductor units with insulators are embedded in the compensation cable, an energizing circuit is formed by connecting U-shaped conductor unit connectors with two ends connected end to end, and the energizing circuit is connected into a safety loop. If the compensating cable is broken partially during use, the dead weight of the compensating cable is larger, which can cause the partial breaking in the conductor unit with the insulator to break the safety loop of the elevator, thereby avoiding the continuous operation of the elevator under the condition that the compensating cable is broken partially, and greatly improving the safety performance of the operation of the elevator-!

Drawings

FIG. 1 is a top view of a compensation cable;

FIG. 2 is a front view of a compensation cable;

FIG. 3 is a schematic view of a conductor unit uniformly arranged on the upper side of a metal core;

FIG. 4 is a schematic view of a conductor element uniformly disposed on the underside of a metallic core;

wherein, the liquid crystal display device comprises a liquid crystal display device,

1. a metal inner core; 2. an outer plastic coating layer; 3. a conductor unit; 4. an intermediate insulating layer; 5. a flexible tensile medium; 6. a conductor unit connection; 7. a power-on line; 8. a safety circuit.

Detailed Description

As shown in fig. 1, 2, 3 and 4, the invention provides a novel elevator compensation cable, when in use, one end of the compensation cable is connected with the bottom of an elevator car, and the other end of the compensation cable is connected with the bottom of an elevator counterweight, and the novel elevator compensation cable comprises a metal inner core 1, a conductor unit 3, an intermediate insulating layer 4, a flexible tensile medium 5 and a conductor unit connecting piece 6; the metal inner core 1 occupies most weight of the compensation cable and can be an iron inner core; the outside of the conductor unit 3 is provided with an insulating layer, and the inside of the conductor unit is made of conductive materials, and can be copper wires or iron wires. The conductor units 3 are uniformly arranged in the middle insulating layer 4, and the middle insulating layer can be made of plastic material and is used for isolating the conductor units from the inner core made of metal material so as to prevent the inner metal wires from contacting the inner core due to the damage of the outer insulating layer of the conductor units; the middle insulating layer 4 is positioned outside the metal inner core 1 and is coated with the metal inner core; the conductor units 3 are respectively connected adjacently at two ends of the compensation cable through at least one conductor unit connecting piece 6, after an electrified line 7 which is communicated end to end is formed, the elevator safety loop 8 is connected to the side of a car or the side of a counterweight, and the flexible tensile medium 5 is used for bearing the self weight of the compensation cable and usually adopts a steel wire rope; when the compensating cable breaks or the local position is abnormally stretched and deformed, the formed energizing circuit 7 is disconnected, so that the safety loop 8 is disconnected, and the elevator main power supply is cut off.

As a preferable scheme, the compensation cable further comprises an outer plastic coating layer 2, wherein the middle insulating layer 4 is positioned outside the metal inner core 1 and inside the outer plastic coating layer 2, and the outer plastic coating layer coats the middle insulating layer to play a role in protection and fixation. The conductor unit connecting piece 6 is a U-shaped conductor connecting rod, and adjacent conductor units 3 are respectively connected at two ends of the compensation cable to form an electrified line 7 which is communicated end to end.

Advantageously, the conductor units 3 are uniformly arranged on both sides of the metal core 1; or evenly arrange in one side of metal material inner core 1, flexible tensile medium 5 symmetry arrange in the inside of metal material inner core 1, quantity is 2 or 3 times, can carry out specific arrangement according to actual need.

Preferred embodiments of the present invention are described in detail above. It should be understood that numerous modifications and variations will be apparent to those skilled in the art in light of the present design concept without the exercise of inventive faculty. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the design concept of the present invention by a person skilled in the art shall be within the scope of the present invention and/or the protection scope defined by the claims.

Claims

1. One end of the elevator compensation cable is connected with the bottom of the elevator car, and the other end of the elevator compensation cable is connected with the bottom of the elevator counterweight, and the elevator compensation cable is characterized in that: comprises a metal inner core (1), a conductor unit (3), an intermediate insulating layer (4), a flexible tensile medium (5) and a conductor unit connecting piece (6); the outside of the conductor unit (3) is provided with an insulating layer, and the conductor unit (3) is uniformly arranged in the middle insulating layer (4); the middle insulating layer (4) is positioned outside the metal inner core (1); the conductor units (3) are respectively connected adjacently at two ends of the compensation cable through at least one conductor unit connecting piece (6), after an electrified line (7) which is communicated end to end is formed, the elevator safety loop (8) is connected to the car side or the counterweight side, and the flexible tensile medium (5) is used for bearing the dead weight of the compensation cable; when the compensation cable breaks or the local position is abnormal in stretching deformation, the formed power-on circuit (7) is disconnected, so that the safety loop (8) is disconnected, the elevator main power supply is cut off, the elevator further comprises an outer plastic coating layer (2), and the middle insulating layer (4) is positioned outside the metal inner core (1) and inside the outer plastic coating layer (2).

2. An elevator compensation cable according to claim 1, characterized in that: the conductor unit connection piece (6) is a U-shaped conductor connection rod.

3. An elevator compensation cable according to claim 2, characterized in that: the conductor units (3) are uniformly arranged on two sides of the metal inner core (1); or uniformly arranged on one side of the metal inner core (1).

4. An elevator compensation cable according to any one of claims 1 to 3, characterized in that: the flexible tensile mediums (5) are symmetrically arranged in the metal inner core (1), and the number of the flexible tensile mediums is a multiple of 2 or 3.