CN112607568A - Elevator steel wire rope replacing method - Google Patents
Elevator steel wire rope replacing method Download PDFInfo
- Publication number
- CN112607568A CN112607568A CN202011622006.4A CN202011622006A CN112607568A CN 112607568 A CN112607568 A CN 112607568A CN 202011622006 A CN202011622006 A CN 202011622006A CN 112607568 A CN112607568 A CN 112607568A
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- steel wire
- wire rope
- elevator
- car
- replacing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/02—Installing or exchanging ropes or cables
Abstract
The invention discloses a method for replacing a steel wire rope of an elevator, which comprises the steps of opening a lift car to the bottom layer, cutting half of the steel wire rope, opening a top layer door of the elevator, and sequentially and completely winding the cut steel wire rope by using a winding machine; a plurality of steel wire ropes with the length matched with the elevator are respectively wound on a plurality of turntables and are placed outside a top layer door, the end parts of the steel wire ropes on the turntables are sequentially wound around a traction wheel and a guide wheel on a counterweight and then are connected to a taper sleeve on the side of the counterweight to be fixed, the elevator is started to enable the car to slowly move to the bottom layer, in the moving process, the steel wire ropes are pulled and released along with the counterweight, and the other ends of the steel wire ropes are taken down to be wound around the guide wheel on the car and are fixed on the taper sleeve on the side of the car. The invention utilizes the movement of the elevator car to pay off and pay off the steel rope, so that the process of replacing the steel rope is high in speed, safety and efficiency.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a method for replacing a steel wire rope of an elevator.
Background
In the field of elevator construction, the quality of the installation quality of the elevator steel wire rope greatly affects the service life of the elevator steel wire rope. From on-site investigation and analysis, almost 70% of the early failures of steel cords are due to improper installation operations; therefore, reasonable rope releasing plays a vital role in prolonging the service life of the steel wire rope. Especially on a high-rise elevator with a traction ratio of 2: 1, the steel wire rope is very long, so that the steel wire rope has practical significance on ensuring no damage in the whole rope releasing process.
In an elevator with a traction ratio of 2: 1, a common steel wire rope releasing method comprises the following steps: and (3) putting a single rope head of each steel wire rope down to the pit from the machine room, and after the rope head is wound around the counterweight diverting pulley, lifting the rope head to the machine room by using a winch. In the method, the steel wire rope can be seriously distorted due to uncontrollable suspension; the steel wire ropes are placed one by one, and then one steel wire rope is lifted, so that time and labor are wasted, and a large-stroke winch is needed. An improved payout method comprises the following steps: in the machine room, the counterweight-side rope head is manufactured firstly, and then each steel wire rope is downwards placed to the counterweight diversion sheave in a rope ring shape, so that certain distortion can be reduced, but the rope ring is not guided, so that once the lifting height is increased, the stroke of the rope ring is correspondingly increased, the steel wire rope still inevitably generates distortion, and the rope ring is easy to hook other well parts on a running line.
The rope releasing method comprises the following steps: placing all the wooden reels outside the top hall door, enabling the elevator car to be at a proper height on the top floor, and lifting the counterweight housing (not filled with counterweight blocks) from the pit to the top floor by using a winch; and (3) winding all the steel wire ropes one by one around the lines of the car diversion sheave → the traction sheave → the guide wheel → the counterweight diversion sheave, returning to the machine room, manufacturing a counterweight side rope head, operating the winch to release the counterweight frame, putting the steel wire ropes to a pit under the traction and guidance of the counterweight frame, and finally manufacturing the car side rope head. Theoretically, the method for releasing the rope has good effect and high working efficiency; however, there are many problems in practical applications: firstly, a sufficient space for placing all wood winding drums is needed outside a top hall door, and the distance from the wood winding drums to an elevator shaft is far enough, so that all steel wire ropes can be guided into a car diversion sheave at the same time; secondly, a large number of installation personnel are required, and each wood winding drum needs to be equipped with at least one operating worker; thirdly, because all the steel cables are paid off at the same time, the required safety protection measures are very strict, such as: how to prevent the steel wire rope from falling rapidly due to self weight; and finally, the device is only suitable for being used on newly-installed elevators and is not suitable for occasions for replacing old elevator steel wire ropes.
Disclosure of Invention
The invention aims to provide a method for replacing a steel wire rope of an elevator, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an elevator wire rope replacement method comprising:
s1, the lift car is opened to the bottom layer, the top of the lift car is enabled to be flush with the bottom of the bottom layer door of the lift, the counterweight body moves to a position close to the top, the bottom layer door is opened and enters the lift shaft, half of steel wire ropes are cut off from the lift car, and the rest steel wire ropes can still normally drive the lift car to move up and down;
s2, opening a top floor door of the elevator, pulling out the cut steel wire ropes in the elevator shaft, unfastening taper sleeves for fixing the end parts of the steel wire ropes, and sequentially and completely winding the steel wire ropes one by one through a winding machine;
s3, winding a plurality of steel wire ropes with the length matched with that of the elevator on a plurality of turntables respectively, and placing the steel wire ropes outside the top layer door;
s4, erecting a template fixed in a shaft at the top layer door, entering the shaft, sequentially bypassing the end part of a steel wire rope on the turntable around a traction sheave and a guide pulley on the counterweight, and then connecting the end part of the steel wire rope on the turntable to a taper sleeve on the counterweight side for fixing;
s5, starting the elevator to enable the car to slowly move to the top landing door, wherein the top of the car is flush with the bottom of the top landing door, and in the moving process, the steel wire rope is pulled and released along with the counterweight body;
and S6, taking down the other end of the steel wire rope to pass by a guide wheel on the car, and then connecting the other end of the steel wire rope to a taper sleeve on the car side for fixing.
Further, in step S5, when the car moves to the top floor, a stopper mechanism for preventing the wire rope from dropping due to the self weight of the counterweight is attached to the top of the elevator shaft near the traction sheave.
Furthermore, stop gear is including fixing the base in the elevator shaft, be provided with two grip blocks on the base, the grip block is connected with and promotes its removal and presss from both sides the cylinder that gathers, two be provided with between the grip block and hold the recess that wire rope passed, the last centre gripping of wire rope hold with the stopper that the grip block offseted.
Furthermore, an electromagnet is arranged on the base and is fixedly attracted with a steel member in the well through the electromagnet.
Furthermore, the guide wheel on the car, the guide wheel on the counterweight body and the traction wheel are provided with positioning mechanisms for preventing the steel wire rope from running out.
Furthermore, positioning mechanism includes the supporting seat, be fixed with the arc supporting shoe on the supporting seat, the card is equipped with on the supporting shoe and cliies the support frame of supporting shoe, the dwang is worn to be equipped with by the open end of support frame, and the other end is seted up flutedly and is blocked and be equipped with the supporting wheel that blocks wire rope with the leading wheel counterbalance.
Furthermore, the rotating rod is provided with threads, and the threads are connected with an adjusting nut which drives the supporting frame to clamp the supporting block.
Furthermore, a pulley block for guiding is arranged at the top layer door.
Compared with the prior art, the invention has the beneficial effects that: 1. when the elevator is positioned at the bottom layer, the steel wire rope is cut off, so that the length difference of two sections of the cut steel wire rope is not large, the steel wire rope is convenient to roll, and the phenomenon that the steel wire rope is too heavy and difficult to roll due to the fact that one section of the steel wire rope is too large is avoided; 2. when the rope is released, the elevator lifts to drag the steel wire rope to release, so that the traditional manual rope releasing operation is avoided, and the danger is avoided; 3. the whole steel wire rope replacing process is fast and efficient.
Drawings
Fig. 1 is a schematic structural diagram of an elevator at step S1 according to the present invention;
FIG. 2 is a schematic diagram of the elevator structure of the present invention at steps S2 and S3;
fig. 3 is a schematic structural diagram of the elevator at step S4 according to the present invention;
fig. 4 is a schematic structural diagram of the elevator at step S5 according to the present invention;
FIG. 5 is a schematic structural view of the limiting mechanism of the present invention;
FIG. 6 is a schematic top view of the limiting mechanism of the present invention;
FIG. 7 is a schematic view of the positioning mechanism of the present invention;
fig. 8 is a schematic side sectional structure view of the positioning mechanism of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a method for replacing a steel wire rope of an elevator is a tower, and comprises the following steps:
s1, the lift car is opened to the bottom layer, the top of the lift car is enabled to be flush with the bottom of the bottom layer door of the lift, the counterweight body moves to a position close to the top, the bottom layer door is opened and enters the lift shaft, half of steel wire ropes are cut off from the lift car, and the rest steel wire ropes can still normally drive the lift car to move up and down as shown in figure 1;
s2, opening a top floor door of the elevator, pulling out the cut steel wire ropes in the elevator shaft, unfastening taper sleeves for fixing the end parts of the steel wire ropes, and sequentially and completely winding the steel wire ropes one by one through a winding machine, as shown in fig. 2;
s3, winding a plurality of steel wire ropes with the length matched with that of the elevator on a plurality of turntables respectively, and placing the steel wire ropes outside the top layer of the door, as shown in figure 2;
s4, erecting a template fixed in the shaft at the top layer door, entering the shaft, sequentially bypassing the end part of the wire rope on the turntable around the traction sheave and the guide pulley on the counterweight, and then connecting the end part of the wire rope on the turntable to a taper sleeve on the counterweight side for fixing, as shown in figure 3;
s5, starting the elevator to enable the car to slowly move to the top landing door, wherein the top of the car is flush with the bottom of the top landing door, and in the moving process, the steel wire rope is pulled and released along with the counterweight body, as shown in figure 4;
and S6, taking down the other end of the steel wire rope to pass by a guide wheel on the car, and then connecting the other end of the steel wire rope to a taper sleeve on the car side for fixing.
As shown in fig. 5 to 6, in one embodiment, in the step S5, when the car moves to the top floor, a limiting mechanism 15 for preventing the wire rope from dropping due to the self weight of the counterweight is installed at the top of the elevator shaft near the traction sheave.
In this embodiment, stop gear is including fixing the base 1 in the elevator shaft, be provided with two grip blocks 2 on the base, the grip block is connected with and promotes its removal and presss from both sides cylinder 3 of holding together, two be provided with between the grip block and hold the recess 4 that wire rope passed, the last centre gripping of wire rope has with the stopper 5 that the grip block offseted.
The base 1 is provided with an electromagnet 6, and the electromagnet 6 is fixedly attracted with a steel member in the well.
In another embodiment, as shown in fig. 7-8, the car upper guide wheel, the counterweight upper guide wheel and the traction wheel are provided with a positioning mechanism 7 for preventing the steel wire rope from running out.
In this embodiment, the positioning mechanism includes a supporting seat 8, an arc-shaped supporting block 9 is fixed on the supporting seat 8, a supporting frame 10 for clamping the supporting block is clamped on the supporting block, a rotating rod 11 is arranged at the opening end of the supporting frame in a penetrating manner, a groove is arranged at the other end of the supporting frame, and a supporting wheel 12 for clamping the steel wire rope against the guide wheel is clamped at the other end of the supporting frame.
The rotating rod is provided with threads and the threads are connected with an adjusting nut 13 which drives the supporting frame to clamp the supporting block.
In all the above embodiments, the pulley block 14 for guiding is arranged at the top landing door.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A method for replacing a steel wire rope of an elevator is characterized by comprising the following steps:
s1, the lift car is opened to the bottom layer, the top of the lift car is enabled to be flush with the bottom of the bottom layer door of the lift, the counterweight body moves to a position close to the top, the bottom layer door is opened and enters the lift shaft, half of steel wire ropes are cut off from the lift car, and the rest steel wire ropes can still normally drive the lift car to move up and down;
s2, opening a top floor door of the elevator, pulling out the cut steel wire ropes in the elevator shaft, unfastening taper sleeves for fixing the end parts of the steel wire ropes, and sequentially and completely winding the steel wire ropes one by one through a winding machine;
s3, winding a plurality of steel wire ropes with the length matched with that of the elevator on a plurality of turntables respectively, and placing the steel wire ropes outside the top layer door;
s4, erecting a template fixed in a shaft at the top layer door, entering the shaft, sequentially bypassing the end part of a steel wire rope on the turntable around a traction sheave and a guide pulley on the counterweight, and then connecting the end part of the steel wire rope on the turntable to a taper sleeve on the counterweight side for fixing;
s5, starting the elevator to enable the car to slowly move to the top landing door, wherein the top of the car is flush with the bottom of the top landing door, and in the moving process, the steel wire rope is pulled and released along with the counterweight body;
and S6, taking down the other end of the steel wire rope to pass by a guide wheel on the car, and then connecting the other end of the steel wire rope to a taper sleeve on the car side for fixing.
2. The method for replacing a wire rope of an elevator according to claim 1, wherein a stopper mechanism for preventing the wire rope from dropping due to the self weight of the counterweight is installed at the top of the elevator shaft near the traction sheave when the car moves to the top floor in step S5.
3. The method for replacing the steel wire rope of the elevator according to claim 2, wherein the limiting mechanism comprises a base fixed in the elevator shaft, two clamping blocks are arranged on the base, the clamping blocks are connected with cylinders for pushing the clamping blocks to move and clamp together, a groove for allowing the steel wire rope to pass through is formed between the two clamping blocks, and a limiting block abutting against the clamping blocks is clamped on the steel wire rope.
4. The method for replacing the steel wire rope of the elevator according to claim 3, wherein the base is provided with an electromagnet, and the electromagnet is fixedly attracted with a steel member in the hoistway.
5. The method for replacing a steel wire rope of an elevator according to claim 1, wherein a positioning mechanism for preventing the steel wire rope from running out is provided at each of the guide pulley on the car, the guide pulley on the counterweight body, and the traction pulley.
6. The method for replacing the steel wire rope of the elevator according to claim 5, wherein the positioning mechanism comprises a supporting seat, an arc-shaped supporting block is fixed on the supporting seat, a supporting frame for clamping the supporting block is clamped on the supporting block, a rotating rod penetrates through the opening end of the supporting frame, a groove is formed in the other end of the supporting frame, and a supporting wheel which is abutted against the guide wheel and clamps the steel wire rope is clamped on the supporting wheel.
7. The method for replacing the steel wire rope of the elevator according to claim 1, wherein the rotating rod is provided with threads and is in threaded connection with an adjusting nut which drives the supporting frame to clamp the supporting block.
8. The method of replacing an elevator rope according to claim 1, wherein a pulley block for guiding is provided at the top landing door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011622006.4A CN112607568A (en) | 2020-12-30 | 2020-12-30 | Elevator steel wire rope replacing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011622006.4A CN112607568A (en) | 2020-12-30 | 2020-12-30 | Elevator steel wire rope replacing method |
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| Publication Number | Publication Date |
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| CN112607568A true CN112607568A (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011622006.4A Pending CN112607568A (en) | 2020-12-30 | 2020-12-30 | Elevator steel wire rope replacing method |
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| CN (1) | CN112607568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114772424A (en) * | 2022-05-16 | 2022-07-22 | 深圳市万御安防服务科技有限公司 | Method for collecting old steel wire rope in elevator steel wire rope replacement process |
| CN116750617A (en) * | 2023-07-18 | 2023-09-15 | 特码斯派克工业技术(安徽)有限公司 | Quick rope changing mechanism and method for vertical shaft friction type elevator |
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| JP2020026320A (en) * | 2018-08-09 | 2020-02-20 | 株式会社日立ビルシステム | Main rope replacement device of elevator and main rope replacement method of elevator |
| CN211310517U (en) * | 2019-07-19 | 2020-08-21 | 山西东迅自动化设备有限公司 | Steel wire rope releasing device for elevator installation |
| CN212198078U (en) * | 2020-04-13 | 2020-12-22 | 何根巨 | Novel traction system of counterweight-free forced driving home elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102120539A (en) * | 2010-12-30 | 2011-07-13 | 沈阳博林特电梯股份有限公司 | Electromagnetic wedge-shaped bidirectional rope gripper |
| CN102616627A (en) * | 2012-04-17 | 2012-08-01 | 蒂森电梯有限公司上海松江分公司 | Reel-off method and reel-off mechanism for elevator steel wire rope |
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| JP2020026320A (en) * | 2018-08-09 | 2020-02-20 | 株式会社日立ビルシステム | Main rope replacement device of elevator and main rope replacement method of elevator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114772424A (en) * | 2022-05-16 | 2022-07-22 | 深圳市万御安防服务科技有限公司 | Method for collecting old steel wire rope in elevator steel wire rope replacement process |
| CN116750617A (en) * | 2023-07-18 | 2023-09-15 | 特码斯派克工业技术(安徽)有限公司 | Quick rope changing mechanism and method for vertical shaft friction type elevator |
| CN116750617B (en) * | 2023-07-18 | 2024-01-02 | 特码斯派克工业技术(安徽)有限公司 | Quick rope changing mechanism and method for vertical shaft friction type elevator |
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Application publication date: 20210406 |
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