CN109867184B - Elevator rapid overhauling process - Google Patents
Elevator rapid overhauling process Download PDFInfo
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- CN109867184B CN109867184B CN201910138770.5A CN201910138770A CN109867184B CN 109867184 B CN109867184 B CN 109867184B CN 201910138770 A CN201910138770 A CN 201910138770A CN 109867184 B CN109867184 B CN 109867184B
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Abstract
The invention discloses a quick overhaul process of an elevator, belonging to the technical field of elevators, and comprising the following technical schemes: the method comprises the steps of taking a wire breaking point as a center, extending upwards by at least 1cm and extending downwards by at least 1cm respectively to form a mark interval, marking, coating pigment on the surface of the mark interval in a surrounding manner through a tool, forming a pigment mark layer in the mark interval, performing rechecking after a cycle, selecting the pigment mark layer with the length direction same as the axial direction of a hoisting rope and the width of at least 1mm, taking the unworn pigment mark layer as the rechecking interval, measuring the sum of the widths of vertical cracks in the rechecking interval, determining whether to replace the pigment mark layer according to the total width of the cracks, and having the advantage of accurately judging the condition of the wire breaking point of the hoisting rope during maintenance.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a quick elevator overhaul process.
Background
The lifting elevator as a modern mechanical carrier has become one of the essential devices in daily life, and is widely applied to malls, high-rise office buildings and high-rise residential buildings. However, since the elevator as a vehicle travels between a high floor and the ground, it is dangerous to periodically perform maintenance, thereby ensuring the normal operation of the elevator and the safety of the passengers and the carried articles. The traction type elevator drives the lift car through the traction rope, the fixed pulley and the movable pulley. Generally, a plurality of hoisting ropes are in a group, the hoisting ropes can generate abrasion or broken wire after working for a period of time, and in order to ensure the running safety of the elevator, the elevator needs to be overhauled more frequently.
At present, after the broken wires are found in the process of maintenance, if the broken wire phenomenon is not serious, direct replacement cannot be carried out, the checking times are increased until replacement, and basically, people only check the broken wire number according to experience, and the elevator shaft is dark, so that the broken wire book cannot accurately run through, and after the broken wire phenomenon occurs, the broken wire phenomenon which is inconvenient to observe may exist inside the hoisting rope, so that the potential safety hazard exists in the hoisting rope.
Disclosure of Invention
The invention aims to provide a rapid overhaul process for an elevator, which has the advantage of accurately judging the condition of a broken wire point of a hoisting rope during overhaul.
The technical purpose of the invention is realized by the following technical scheme: a rapid overhaul process of an elevator comprises the following steps:
the method comprises the following steps: detecting a broken wire breakpoint;
step two: primary treatment: running the hauling rope to enable the hauling rope at the position of the broken wire point to be in a vertical state, and cleaning sundries at the position of the broken wire point;
step three: marking and coating:
step three, step one: and (3) interval determination: taking the broken filament point as a center, respectively extending upwards for at least 1cm and extending downwards for at least 1cm to form a mark interval;
step three, step two: coating a pigment: coating pigment on the surface of the marking interval in a surrounding way through a tool to form a pigment marking layer in the marking interval;
step three, step three: drying;
step four: and (4) rechecking: a rechecking period is carried out;
step four, step one: preparation of reinspection: running the hauling rope to enable the hauling rope at the position of the pigment marking layer to be in a vertical state, and cleaning sundries at the position of the pigment marking layer;
step four, step two: and (3) retest interval determination: selecting a pigment marking layer which has the same length direction as the axial direction of the hauling rope and the width of at least 1mm and is not worn as a rechecking interval;
step four, step three: and (3) carrying out crack statistics: measuring the sum of the widths of the vertical cracks in the rechecking interval;
step five: maintenance and replacement: and determining whether to replace the hoisting rope according to the total crack width, and if the total crack width does not meet the replacement requirement, repeating the fourth step until the hoisting rope is replaced.
By adopting the technical scheme, after the wire breaking point is found for the first time, carefully checking whether the wire breaking condition of the wire breaking point is suitable for continuous use, when the wire breaking number of the wire breaking point is determined to exceed 2 percent of the total number of steel wires of the hauling rope through the conventional judgment standard, replacing the hauling rope in time, when the wire breaking number of the wire breaking point is determined not to exceed 2 percent of the total number of the steel wires of the hauling rope through the conventional judgment standard, coating pigment on the hauling rope in the wire breaking point range to form a pigment marking layer, enabling the hauling rope to work normally, checking the total width of vertical cracks of the pigment marking layer when next maintenance is carried out, knowing the stretching length of the position of the wire breaking point in a rechecking period, when the stretching length is overlong, indicating that the wire breaking point of the hauling rope is seriously increased, if the wire breaking number is observed from the outside, namely the internal wire breaking number is obviously increased, and the hauling rope is not suitable for continuous work, the elevator safety monitoring device has the advantages that the potential safety hazard is large, the elevator safety monitoring device can be replaced in time, the potential safety hazard is removed, the detection accuracy of the hoisting rope is obviously improved, in addition, convenience is brought to maintenance personnel to visually observe the integral state of the hoisting rope, and the use safety of the elevator is improved.
Further, the third step and the second step: coating a pigment: the pigment is non-ferrous metal paint.
By adopting the technical scheme, the non-ferrous metal paint and the hoisting rope have better adhesion, and the solidified non-ferrous metal paint can generate better cracks and cannot generate stretching after the hoisting rope generates stretching, so that the re-inspection accuracy is improved.
Further, the third step and the second step: coating a pigment: the pigment is white.
Through adopting above-mentioned technical scheme, the colour of white pigment and towline plays better contrast effect to be convenient for people to carry out audio-visual observation.
Further, the third step and the second step: coating a pigment: and a transparent protective layer is coated on the outer layer of the pigment marking layer.
Through adopting above-mentioned technical scheme, transparent protective layer can be better protects pigment, conveniently carries out the surface cleaning to can reduce the interference of debris when observing.
Further, the third step and the second step: coating a pigment: the transparent protective layer is a varnish layer.
Through adopting above-mentioned technical scheme, varnish layer surface is smooth, and debris are difficult to carry out the adhesion to make the convenience more of clearance.
Further, step four: and (4) rechecking: one recheck period was 15 days.
By adopting the technical scheme, the safety of the elevator is effectively ensured in a frequent rechecking period.
Further, the first step: and (3) detecting a broken wire breakpoint: the cotton yarn is fixed outside, the cotton yarn is wound on the dragging rope again, the elevator is operated, if part of the cotton yarn is hung on the dragging rope, the cotton yarn is taken down to observe whether a yarn breaking point exists or not.
Through adopting above-mentioned technical scheme, after the towline produced disconnected silk, partial steel wire head can effectually collude the cotton yarn to the quick emergence disconnected silk point of people of being convenient for promotes maintenance efficiency.
Further, the third step: and (3) interval determination: the broken filament point is taken as the center, and the broken filament point extends upwards by 5cm and downwards by 5cm respectively.
Through adopting above-mentioned technical scheme, the tensile strength weakens relatively in the small range of disconnected silk point, promotes detection area, and effectual promotion detects the precision, reduces the potential safety hazard.
Further, the fourth step and the third step: and (3) carrying out crack statistics: and coating the outer surface of the pigment marking layer with fluorescent powder.
Through adopting above-mentioned technical scheme, the relative light of elevartor shaft is more weak, and during the phosphor powder can effectual embedding gap, and sent fluorescence, the people of being convenient for carry out accurate observation, promote the precision that detects, reduce the potential safety hazard.
In conclusion, the invention has the following beneficial effects:
1. the stretching amount is determined by performing range pigment marking on the broken wire point and the total width of the pigment cracks during the rechecking, so that the detection accuracy is improved, and the potential safety hazard is reduced;
2. through the total width of the pigment cracks, observation is effective and visual, and the detection efficiency is improved.
Drawings
FIG. 1 is a view showing a state of coating the pigment of the present embodiment.
In the figure, 1, a hoist rope; 2. a pigmented indicia layer; 3. and (5) cleaning a paint layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A rapid overhaul process of an elevator comprises the following steps:
the method comprises the following steps: detecting a broken wire breakpoint; the hauling rope 1 is composed of a plurality of steel wires, the phenomenon of the broken wire of the hauling rope 1 is that partial steel wires are broken, the broken steel wires completely lose the tensile action at the broken wire point, after the steel wires are broken, the broken wire point forms two steel wire ends, because the whole length of the hauling rope 1 is long, when the broken wire point is detected, people use cotton yarn to form a ring shape and fix the ring-shaped cotton yarn outside the hauling rope 1, people can directly hold the ring-shaped cotton yarn and can also fix the ring-shaped cotton yarn through a fixing tool to operate the elevator, so that the hauling rope 1 and the ring-shaped cotton yarn carry out relative movement, in the movement process, when the cotton yarn meets the broken wire point of the hauling rope 1, the cotton yarn can be hooked by the steel wire ends, so that partial cotton yarn can be hung on the hauling rope 1, when the hauling rope 1 completely passes through the cotton yarn, people only need to observe that the cotton yarn is hung there, and then take off the cotton yarn to observe whether there is the broken wire point, thereby be convenient for people quick emergence disconnected silk point, promote maintenance efficiency.
And after the wire breaking point is found for the first time, carefully checking whether the wire breaking condition of the wire breaking point is suitable for continuous use, timely replacing the hauling rope 1 when the wire breaking number of the wire breaking point is determined to exceed 2% of the total number of the steel wires of the hauling rope 1 through a conventional judgment standard, and performing the second step when the wire breaking number of the wire breaking point is determined not to exceed 2% of the total number of the steel wires of the hauling rope 1 through the conventional judgment standard.
Step two: primary treatment: the dragging rope 1 is operated, so that the dragging rope 1 at the position of the broken wire point is in a vertical state, the situation that the observation is influenced due to the fact that the broken wire point is located in the dragging machine is avoided, the situation that the judgment is influenced due to the fact that the position of the broken wire point is arc-shaped is prevented, then solid sundries at the position of the broken wire point are cleaned through the hairbrush, and lubricating oil at the position of the broken wire point is erased through the cleaning cloth, and the subsequent coating operation.
Step three: and (4) coating the mark.
Step three, step one: and (3) interval determination: the wire breaking point is used as the center, the wire breaking point extends upwards by 5cm and extends downwards by 5cm to form a marking interval, marking is carried out, the tensile strength in a small range of the wire breaking point is weakened relatively, the detection area is increased, the detection precision is effectively improved, and the potential safety hazard is reduced.
Step three, step two: coating a pigment: coating white non ferrous metal paint on the interval surface of mark through the instrument encircleing, form pigment mark layer 2 at the interval of mark, paint mark layer 2 skin recoating varnish layer 3, non ferrous metal paint has better adhesive action with towline 1, and solidify the back toughness and hand over the end, non ferrous metal paint can produce better crackle after towline 1 produces tensile, and can not produce tensile, thereby promote the accuracy of reinspection, and white pigment plays better contrast effect with towline 1's colour, thereby be convenient for people to carry out audio-visual observation, varnish layer 3 can better protection pigment, and the surface is smooth, debris are difficult to carry out the convenient surface cleaning of adhesion, thereby can reduce the interference of debris when observing.
Step three, step three: the effect through hair dryer or drying apparatus makes the quick drying that carries on of pigment mark layer 2 and clear lacquer layer 3 respectively dry, effectual promotion people's work efficiency.
Step four: and (4) rechecking: the method is carried out after one rechecking period, wherein the rechecking period is 15 days, the frequent rechecking period effectively ensures the safety of the elevator, and the rechecking interval time is properly shortened along with the increase of the rechecking times, so that the safety is effectively improved.
Step four, step one: preparation of reinspection: the dragging rope 1 is operated, so that the dragging rope 1 at the position of the pigment marking layer 2 is in a vertical state, the pigment marking layer 2 is prevented from being positioned in a tractor to influence observation, the position of the pigment marking layer 2 is prevented from being arc-shaped to influence judgment, solid impurities at the position of the pigment marking layer 2 are cleaned by the hairbrush, lubricating oil at the position of the pigment marking layer 2 is erased by the cleaning cloth, and subsequent rechecking operation is prevented from being influenced.
Step four, step two: and (3) retest interval determination: in the working process of the traction rope 1, the position in contact with the traction machine is easy to wear, two sides of the position in contact with the traction machine are easy to wear in contact with other traction ropes 1, the position opposite to the position in contact with the traction machine is basically not in contact with other objects, the length direction of the selected position is the same as the axial direction of the traction rope 1, and the width of the selected position is at least 1mm, so that the selected position is a rechecking interval, people can conveniently observe a complete rechecking interval, and the rechecking accuracy is improved.
Step four, step three: and (3) carrying out crack statistics: coating the outer surface of the pigment marking layer 2 with fluorescent powder; get vertical crack width sum in the reinspection interval of volume, the relative light of elevartor shaft is more weak, and during phosphor powder can effectual embedding gap, and sent fluorescence, the people of being convenient for carry out accurate observation, promote the precision that detects, reduce the potential safety hazard.
And looking up the total vertical crack width of the pigment marking layer 2, so that the stretching length of the filament breaking point position in one rechecking period can be known.
Step five: maintenance and replacement: when the stretching length is too long, the broken filament at the filament breaking point of the hauling rope 1 is shown to be seriously increased, if the filament breaking number observed from the outside is small, the internal filament breaking number is obviously increased, the hauling rope 1 is not suitable for continuing to work, great potential safety hazards exist, the replacement should be carried out in time, the potential safety hazards are removed, the detection accuracy of the hauling rope 1 is obviously improved, and the overhaul personnel can be conveniently used for visually observing the whole state of the hauling rope 1, the use safety of the elevator is improved, and if the replacement requirement is not met, the fourth step is repeated until the hauling rope 1 is replaced.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (4)
1. The elevator quick overhaul process is characterized in that: the method comprises the following steps:
the method comprises the following steps: detecting a broken filament point;
step two: primary treatment: running the hoisting rope (1) to enable the hoisting rope (1) at the position of the broken wire point to be in a vertical state, and cleaning sundries at the position of the broken wire point;
step three: marking and coating:
step three (one): and (3) interval determination: taking the broken filament point as a center, respectively extending upwards for 5cm and downwards for 5cm to form a marking interval;
step three (two): coating a pigment: coating non-ferrous metal paint on the surface of a marking interval in a surrounding way through a tool, forming a pigment marking layer (2) in the marking interval, and coating a varnish layer (3) on the outer layer of the pigment marking layer (2);
step three: drying;
step four: and (4) rechecking: a rechecking period is carried out;
step four (one): preparation of reinspection: running the hauling rope (1) to enable the hauling rope (1) at the position of the pigment marking layer (2) to be in a vertical state, and cleaning sundries at the position of the pigment marking layer (2);
step four (two): and (3) retest interval determination: selecting a pigment marking layer (2) which has the same length direction as the axial direction of the hauling rope (1) and the width of at least 1mm and is not worn as a rechecking interval;
step four (three): and (3) carrying out crack statistics: measuring the sum of the widths of the vertical cracks in the rechecking interval;
step five: maintenance and replacement: and determining whether to replace the hoisting rope according to the total crack width, and if the replacement requirement is not met, repeating the fourth step until the hoisting rope (1) is replaced.
2. The elevator quick overhaul process as claimed in claim 1, which is characterized in that: step three (two): coating a pigment: the non-ferrous metal paint is white.
3. The elevator quick overhaul process as claimed in claim 1, which is characterized in that: step four: and (4) rechecking: one recheck period was 15 days.
4. The elevator quick overhaul process as claimed in claim 1, which is characterized in that: step four (three): and (3) carrying out crack statistics: and (3) coating the outer surface of the pigment marking layer (2) by using fluorescent powder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138770.5A CN109867184B (en) | 2019-02-25 | 2019-02-25 | Elevator rapid overhauling process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138770.5A CN109867184B (en) | 2019-02-25 | 2019-02-25 | Elevator rapid overhauling process |
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| CN109867184A CN109867184A (en) | 2019-06-11 |
| CN109867184B true CN109867184B (en) | 2020-08-07 |
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| AU2003268986A1 (en) * | 2002-11-15 | 2004-06-15 | Kone Corporation | Method for ensuring and measuring the internal tension of an elevator hoisting rope, and elevator permitting the use of said method |
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| CN102297805A (en) * | 2010-06-25 | 2011-12-28 | 上海宝钢工业检测公司 | Nondestructive test method of wire rope |
| CN103387171A (en) * | 2013-07-26 | 2013-11-13 | 日立电梯（中国）有限公司 | Control method for detection of broken wires of elevator traction rope |
| JP2015037997A (en) * | 2013-07-31 | 2015-02-26 | 東芝エレベータ株式会社 | Rope deterioration diagnostic method and elevator device |
| CN106882716A (en) * | 2015-12-15 | 2017-06-23 | 中国电力科学研究院 | One kind splits pre-alarming device and method for winding of rotary drilling rig steel wire rope fracture prevention |
-
2019
- 2019-02-25 CN CN201910138770.5A patent/CN109867184B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003268986A1 (en) * | 2002-11-15 | 2004-06-15 | Kone Corporation | Method for ensuring and measuring the internal tension of an elevator hoisting rope, and elevator permitting the use of said method |
| RU2238903C1 (en) * | 2003-05-19 | 2004-10-27 | Общество с ограниченной ответственностью Инженерно-консультационный центр "Мысль" Новочеркасского государственного технического университета | Steel wire rope sorting method |
| CN1827909A (en) * | 2006-03-30 | 2006-09-06 | 上海诸光机械有限公司 | Apparatus and method for maintenance of anti-winding steel wire for engineering |
| CN102297805A (en) * | 2010-06-25 | 2011-12-28 | 上海宝钢工业检测公司 | Nondestructive test method of wire rope |
| CN103387171A (en) * | 2013-07-26 | 2013-11-13 | 日立电梯（中国）有限公司 | Control method for detection of broken wires of elevator traction rope |
| JP2015037997A (en) * | 2013-07-31 | 2015-02-26 | 東芝エレベータ株式会社 | Rope deterioration diagnostic method and elevator device |
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| CN109867184A (en) | 2019-06-11 |
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