CN111994762A - Vertical shaft hoisting steel wire rope replacing process - Google Patents
Vertical shaft hoisting steel wire rope replacing process Download PDFInfo
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- CN111994762A CN111994762A CN202010871526.2A CN202010871526A CN111994762A CN 111994762 A CN111994762 A CN 111994762A CN 202010871526 A CN202010871526 A CN 202010871526A CN 111994762 A CN111994762 A CN 111994762A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
- B66B15/02—Rope or cable carriers
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Abstract
The invention discloses a vertical shaft hoisting steel wire rope replacing process, wherein a steel wire rope is replaced twice in the rope replacing process, every two steel wire ropes form a group, and the specific rope replacing process comprises the following steps: erecting a new rope, leading the new rope by using an old rope, placing the new rope, replacing a side rope head of the auxiliary skip, recovering the old rope and replacing a side rope head of the main skip. The old rope is replaced by the new rope in a mode that the new rope gives out the old rope, the whole rope replacing process can be completed only on the ground, the times of high-altitude operation are reduced, operators do not need to work in a shaft with large water spraying and wind amount, and the safety is improved; in addition, the transition rope is used for connecting the new rope and the old rope in the rope changing process, and the new rope and the old rope are clamped tightly by the steel rope clamping plate, so that the new rope and the old rope can be prevented from being twisted together, the rope diameter of the steel wire rope is prevented from being damaged, in addition, the rope changing process is used for shortening the rope changing time from 10 days to 4 days, and the rope changing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of a hoisting steel wire rope replacing process, in particular to a vertical shaft hoisting steel wire rope replacing process.
Background
The existing vertical shaft is as deep as 900 meters, and for safe production of a coal mine, a hoisting steel wire rope needs to be replaced every two years. The old rope and the new rope are easily twisted together due to twisting in the rope guiding process of the existing rope changing process, so that the new rope easily jumps out of a rope groove when passing through a head sheave, the new rope needs time to be treated, a steel rope is damaged, and in the prior art, a steel wire rope connecting device is needed to be used as a rope head both on the well and under the well, the existing rope changing process relates to a plurality of high-altitude operations, water is sprayed in a shaft, the air volume is large, and the factors lead the changing time to be as long as ten days.
Therefore, the process for replacing the steel wire rope in the prior art mainly has the following defects: firstly, a new steel wire rope is put into a shaft in advance and suspended to release torsional force, so that the lay length of the steel wire rope is easily lengthened, and the diameter is easily reduced; secondly, a large potential safety hazard exists; thirdly, the long-term effect is low after consuming time.
Disclosure of Invention
In view of the above disadvantages, the present invention provides a process for replacing a steel wire rope for a vertical shaft hoist, which optimizes a rope replacing process by replacing the steel wire rope with an old belt and a new belt, so that the diameter of the steel wire rope is not damaged during the rope replacing process, the safety of the rope replacing process is improved, the time of the whole rope replacing process is shortened, and the rope replacing efficiency is improved.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a vertical shaft hoisting steel wire rope replacing process is characterized in that 4 steel wire ropes are replaced totally, the steel wire ropes are marked as 1#, 2#, 3#, and 4# respectively, the steel wire ropes are replaced twice in the rope replacing process, the 1# and the 4# are used as one group of replacement, the 2# and the 3# are used as the other group of replacement, and the rope replacing process is as follows specifically:
s1: erecting a new rope;
s2: leading a new rope by using the old rope;
s3: a new rope is put;
s4: replacing the side rope head of the auxiliary skip;
s5: recovering an old rope;
s6: and replacing the side rope head of the main skip.
Preferably, the rope replacing process further comprises:
s7: and adjusting the static tension of the steel wire rope.
Preferably, the 1# and 3# steel wire ropes are twisted in the left direction, and the 2# and 4# steel wire ropes are twisted in the right direction.
Preferably, the specific process of step S1 is as follows:
s11: 1# and 4# new rope jiggers are fixed at preset positions close to the side surface of the auxiliary skip, and are alternately arranged and stably fixed;
s12: a fixing support for setting the working brake and preventing the rope reel from moving.
Preferably, the specific process of step S2 is:
s21: the old rope carries a new rope to sequentially pass through the overhead sheave at the side of the auxiliary skip, the elevator roller, the overhead sheave at the side of the main skip and the wellhead of the main skip from the wellhead of the auxiliary skip, and the step of rope leading of the part of the ground derrick is completed;
s22: 2 guide pulleys are arranged at a wellhead at the side of the auxiliary skip, a new rope bypasses the pulleys to an old rope, and the new rope and the old rope are connected together by a transition rope;
s23: after the rope leading devices of the 1# and the 4# steel wire ropes are well done, personnel withdraw to a safe place, the hoister is started at the rope checking speed in maintenance, the main skip moves downwards, the new rope end is driven to respectively pass through the auxiliary skip side head sheave, the winch drum and the main skip side head sheave, and the main skip side wellhead maintenance platform is stopped.
Preferably, the specific process of step S3 is:
s31: the old rope drives the new rope to move, and the rope head of the new rope is pulled to the wellhead of the main skip bucket to stop;
s32: 2 rope buckles are arranged on a derrick on the ground to fix rope ends 1# and 4# respectively, then 3 hand hoists are uniformly distributed outside the surrounding angles of the main skip side Tianlun, the auxiliary skip side Tianlun and the hoister roller respectively, and new ropes 1# and 4# are separated from the main skip side Tianlun, the auxiliary skip side Tianlun and the hoister roller;
s33: starting a hoist, stopping the main skip when the main skip upwards moves to a position I of the skip steel wire rope connecting device corresponding to the position of a wellhead platform at a maintenance rope checking speed, at the moment, a new rope does not move, respectively winding 3-5 circles of main skip balance plates on the positions of No. 1 and No. 4 new rope ends corresponding to old rope positions, and then clamping by using 5 pairs of rope clamps to form a temporary rope end;
s34: starting a hoist, enabling a main skip to downwards run at a maintenance rope checking speed, and stopping at intervals of 30m to tightly clamp a new rope and an old rope on the side of the main skip by using a special steel rope clamping plate;
s35: and stopping when the auxiliary skip moves upwards to the wellhead operation platform, and completely locking the steel wire rope by using the first rope lifting device on the side of the main skip.
Preferably, the specific process of step S4 is as follows:
s41: clamping the 1# and 4# old ropes on the nearby ropes by using rope clamps at 1m positions above the 1# and 4# old rope ends on the side of the auxiliary skip, dismantling the 1# old rope ends, arranging the 1# new rope ends in corresponding steel wire rope connecting devices, and after the 1# new rope ends are made, making the 4# new rope ends in the same way;
s42: and removing rope clamps of the 1# and 4# old ropes, and using soft ropes for binding and drawing respectively.
Preferably, the specific process of step S5 is as follows:
s51: manually placing the old rope head at the side of the auxiliary skip below a derrick inclined frame, loosening the first rope lifting device, and then evacuating the personnel to a safe place;
s52: starting a hoist, enabling the main skip to run upwards, and in the process that the old rope in the shaft runs upwards in the main skip, enabling the new rope to drive the old rope to naturally blow down to the bottom surface of the wellhead in the direction of the inclined frame of the derrick through the sky on the side of the main skip and well enclose the old rope on the ground;
s53: and stopping when the clamping plate reaches the position of the inlet operation platform, and withdrawing the clamping plate.
Preferably, the specific process of step S6 is as follows:
s61: after all the old ropes are completely collected, the main skip is moved to the position of a wellhead operation platform, the first rope lifting device is used for clamping all the steel wire ropes on the side of the main skip, and meanwhile, 4 steel wire ropes on the side of the auxiliary skip are locked on the derrick by a rope locking device;
s62: withdrawing the old rope ends of the 1# and 4# ropes on the main skip side, arranging the new rope ends of the 1# and 4# ropes in the corresponding steel wire rope connecting devices, and making the new rope ends of the 1# and 4# ropes;
s63: the 2# and 3# steel cords were replaced in the same way.
Preferably, the specific process of step S7 is as follows:
s71: oil is injected into hydraulic rope regulators of a main skip and an auxiliary skip of a wellhead operation platform, so that the static tension of each rope is basically consistent;
s72: and observing the running states of the main skip and the auxiliary skip, and taking up the rope when the steel wire rope becomes long.
The invention has the beneficial effects that: the new rope is driven by the old rope, the old rope is replaced by the new rope in a mode that the new rope gives out the old rope, the whole rope replacing process can be completed only on the ground, the times of high-altitude operation are reduced, an operator does not need to work in a shaft with large water spraying and wind amount, the new rope and the old rope can be prevented from being twisted together by connecting the new rope and the old rope by the transition rope and clamping the new rope and the old rope by the steel rope clamping plate in the rope replacing process, and therefore the rope diameter of the steel wire rope is prevented from being damaged. In addition, the rope replacing process shortens the rope replacing time from 10 days to 4 days, and improves the rope replacing efficiency.
The invention is further described with reference to the following figures and examples.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a diagram of the present invention in an operational state prior to a rope change;
FIG. 2 is a first state diagram of the present invention during a rope change;
FIG. 3 is a second state diagram of the present invention during a rope change;
fig. 4 is a state diagram after the rope is replaced according to the invention.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
Example 1:
referring to fig. 1 to 4, in order to ensure that the wire rope does not return, and increase the tightness of the wire rope, the wire rope is replaced in a new and old manner without eliminating the stress of the wire rope, two hoisting wire ropes are replaced at a time, and the replacement is divided into two times, wherein 4 wire ropes are respectively marked as 1#, 2#, 3#, and 4#, wherein 1# and 4# are one group, 2# and 3# are another group, 1# and 3# wire ropes are twisted in the left direction, and 2# and 4# wire ropes are twisted in the right direction.
The specific rope changing process is as follows:
s1: novel rope
As shown in fig. 2, 4 new ropes correspond to the twisting direction of the old rope, and are marked according to 1#, 2#, 3#, and 4# respectively, and the 1# and 4# new rope jiggers are fixed at preset positions close to the side of the auxiliary skip, the preset positions can be adjusted, and are alternately arranged and fixed stably, and then a working brake and a fixing support for preventing the rope jigger from moving are arranged.
S2: using old rope to guide new rope
S21: the old rope carries a new rope to sequentially pass through the overhead sheave at the side of the auxiliary skip, the elevator roller, the overhead sheave at the side of the main skip and the wellhead of the main skip from the wellhead of the auxiliary skip, and the step of rope leading of the part of the ground derrick is completed;
s22: setting a head sheave at the side of a main skip as a 1# head sheave, setting a head sheave at the side of an auxiliary skip as a 2# head sheave, and stopping the main skip at a position corresponding to a wellhead platform on the back surface of the main skip, namely a point I;
s23: 2 guide pulleys are arranged at a wellhead at the side of the auxiliary skip bucket, a new rope bypasses the pulleys to an old rope, a soft rope with the length of 20m is used as a transition rope, and 8-shaped buckles are added with binding wires, so that one end of the soft rope is fixed on the old rope, the other end of the soft rope is fixed on the head of the new rope, the old rope and the new rope are prevented from being twisted together, and the soft rope can only be twisted on the transition rope even if twisting force is generated;
s24: after the rope leading devices of the 1# and the 4# steel wire ropes are well done, personnel withdraw to a safe place, the hoister starts at the rope checking speed in maintenance, the main skip moves downwards, the new rope end is driven to respectively pass through the auxiliary skip side head sheave, the winch roller and the main skip side head sheave, the main skip side wellhead maintenance platform is reached to park, and the rope checking speed in maintenance is 0.3-0.5 m/s.
In the rope guiding process, the old rope is positioned in the rope groove, and the new rope is pressed on the outer side of the old rope.
S3: rope for releasing new
S31: the old rope drives the new rope to move, the rope head of the new rope is pulled to the wellhead of the main skip to stop, and the main skip moves to a point II below the point I (as shown in figure 2);
s32: 2 rope buckles are arranged on the 2 nd layer of a derrick on the ground to fix rope ends 1#, 4#, then 3 hand hoists are uniformly distributed outside the surrounding angles of the main skip side Tianlun, the auxiliary skip side Tianlun and the hoister roller respectively, the weight of the hand hoists is more than 2t, and 1# and 4# new ropes are separated from the main skip side Tianlun, the auxiliary skip side Tianlun and the hoister roller;
s33: starting a hoist, stopping the main skip when the main skip upwards moves to a position A of the skip steel wire rope connecting device corresponding to the position of a wellhead platform at a maintenance rope checking speed, at the moment, a new rope does not move, respectively winding 3-5 circles of main skip balance plates on the positions of 1# new rope ends and 4# new rope ends corresponding to old rope positions, and then clamping by using 5 pairs of rope clamps to form a temporary rope end;
s34: starting a hoist, enabling a main skip to downwards run at a maintenance rope checking speed, stopping at intervals of 30m, clamping a new rope and an old rope on the side of the main skip by using a special steel rope clamping plate, and preventing the new rope from sliding downwards and the new rope and the old rope from being twisted together until the new rope is led to the bottom of the well;
s35: and stopping when the auxiliary skip moves upwards to the wellhead operation platform, and completely locking the steel wire rope by using the first rope lifting device on the side of the main skip.
S4: side rope head for replacing auxiliary skip
As shown in fig. 4, the auxiliary skip is located at the position of a wellhead operation platform, 1# and 4# old ropes are clamped on the ropes nearby by rope clamps at 1m above 1# and 4# old rope ends of the auxiliary skip, the 1# old rope ends are detached, the 1# new rope ends are arranged in the corresponding songarian trial connection devices, after the 1# new rope ends are made, the 4# new rope ends are made in the same mode, then the rope clamps of the 1# and 4# old ropes are detached, and the soft ropes are used for binding and drawing respectively.
S5: folding and unfolding clamp plate for old rope
S51: manually placing the old rope head at the side of the auxiliary skip below a derrick inclined frame, loosening the first rope lifting device, and then evacuating the personnel to a safe place;
s52: starting a hoist, enabling the main skip to upwards run at a maintenance rope testing speed, and in the process that the old rope in the shaft upwards runs in the main skip, driving the old rope to downwards naturally fall on the ground of a well head in the direction of a derrick inclined frame through a sky on the side of the main skip by the new rope, and looping the old rope on the ground;
s53: and stopping when the clamping plate reaches the position of the inlet operation platform, and withdrawing the clamping plate.
S6: side rope head for replacing main skip
S61: after all the old ropes are completely collected, the main skip is moved to the position of a wellhead operation platform, the first rope lifting device is used for clamping all the steel wire ropes on the side of the main skip, and meanwhile, 4 steel wire ropes on the side of the auxiliary skip are locked on the derrick by a rope locking device;
s62: and withdrawing the old rope ends of the 1# and 4# of the main skip side, arranging the new rope ends of the 1# and 4# in the corresponding steel wire rope connecting devices, and making the new rope ends of the 1# and 4# into a finished product.
S7: adjusting static tension of wire rope
S71: oil is injected into hydraulic rope regulators of a main skip and an auxiliary skip of a wellhead operation platform, so that the static tension of each rope is basically consistent, and the tension difference of a steel wire rope is not more than plus or minus 10%;
s72: and observing the running states of the main skip and the auxiliary skip, and taking up the rope when the steel wire rope becomes long.
After the steps are completed, the 2# and 3# steel wire ropes are replaced by the same method.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. In addition, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation, the use of the term being generic or similar to other means being encompassed by the invention.
Claims (10)
1. A vertical shaft hoisting steel wire rope replacing process is characterized in that 4 steel wire ropes are replaced in total, and the steel wire ropes are marked as 1#, 2#, 3#, and 4# respectively: the steel wire rope is divided into two times to be changed in the rope changing process, 1# and 4# are used as one group to be changed, 2# and 3# are used as the other group to be changed, and the rope changing process is as follows:
s1: erecting a new rope;
s2: leading a new rope by using the old rope;
s3: a new rope is put;
s4: replacing the side rope head of the auxiliary skip;
s5: recovering an old rope;
s6: and replacing the side rope head of the main skip.
2. The process of claim 1, wherein the process comprises the following steps: the rope changing process further comprises:
s7: and adjusting the static tension of the steel wire rope.
3. The process of claim 2, wherein the process comprises the following steps: the No. 1 and No. 3 steel wire ropes are twisted in the left direction, and the No. 2 and No. 4 steel wire ropes are twisted in the right direction.
4. A process for replacing a riser wire rope according to any one of claims 1-3, characterized in that: the specific process of step S1 is as follows:
s11: 1# and 4# new rope jiggers are fixed at preset positions close to the side surface of the auxiliary skip, and are alternately arranged and stably fixed;
s12: a fixing support for setting the working brake and preventing the rope reel from moving.
5. A process for replacing a riser wire rope according to any one of claims 1-3, characterized in that: the specific process of step S2 is as follows:
s21: the old rope carries a new rope to sequentially pass through the overhead sheave at the side of the auxiliary skip, the elevator roller, the overhead sheave at the side of the main skip and the wellhead of the main skip from the wellhead of the auxiliary skip, and the step of rope leading of the part of the ground derrick is completed;
s22: 2 guide pulleys are arranged at a wellhead at the side of the auxiliary skip, a new rope bypasses the pulleys to an old rope, and the new rope and the old rope are connected together by a transition rope;
s23: after the rope leading devices of the 1# and the 4# steel wire ropes are well done, personnel withdraw to a safe place, the hoister is started at the rope checking speed in maintenance, the main skip moves downwards, the new rope end is driven to respectively pass through the auxiliary skip side head sheave, the winch drum and the main skip side head sheave, and the main skip side wellhead maintenance platform is stopped.
6. A process for replacing a riser wire rope according to any one of claims 1-3, characterized in that: the specific process of step S3 is as follows:
s31: the old rope drives the new rope to move, and the rope head of the new rope is pulled to the wellhead of the main skip bucket to stop;
s32: 2 rope buckles are arranged on a derrick on the ground to fix rope ends 1# and 4# respectively, then 3 hand hoists are uniformly distributed outside the surrounding corners of the main skip side head sheave, the auxiliary skip side head sheave and the hoister roller respectively, and new ropes 1# and 4# are separated from the main skip side head sheave, the auxiliary skip side head sheave and the hoister roller;
s33: starting a hoist, stopping the main skip when the main skip upwards moves to a position I of the skip steel wire rope connecting device corresponding to the position of a wellhead platform at a maintenance rope checking speed, at the moment, a new rope does not move, respectively winding 3-5 circles of main skip balance plates on the positions of No. 1 and No. 4 new rope ends corresponding to old rope positions, and then clamping by using 5 pairs of rope clamps to form a temporary rope end;
s34: starting a hoist, enabling a main skip to downwards run at a maintenance rope checking speed, and stopping at intervals of 30m to tightly clamp a new rope and an old rope on the side of the main skip by using a special steel rope clamping plate;
s35: and stopping when the auxiliary skip moves upwards to the wellhead operation platform, and completely locking the steel wire rope by using the first rope lifting device on the side of the main skip.
7. A process for replacing a riser wire rope according to any one of claims 1-3, characterized in that: the specific process of step S4 is as follows:
s41: clamping the 1# and 4# old ropes on the nearby ropes by using rope clamps at 1m positions above the 1# and 4# old rope ends on the side of the auxiliary skip, dismantling the 1# old rope ends, arranging the 1# new rope ends in corresponding steel wire rope connecting devices, and after the 1# new rope ends are made, making the 4# new rope ends in the same way;
s42: and removing rope clamps of the 1# and 4# old ropes, and using soft ropes for binding and drawing respectively.
8. A process for replacing a riser wire rope according to any one of claims 1-3, characterized in that: the specific process of step S5 is as follows:
s51: manually placing the old rope head at the side of the auxiliary skip below a derrick inclined frame, loosening the first rope lifting device, and then evacuating the personnel to a safe place;
s52: starting a hoist, enabling the main skip to run upwards, and in the process that the old rope in the shaft runs upwards in the main skip, enabling the new rope to drive the old rope to naturally fall on the ground of a well head downwards in the direction of a derrick inclined frame through a head sheave on the side of the main skip, and looping the old rope on the ground;
s53: and stopping when the clamping plate reaches the position of the inlet operation platform, and withdrawing the clamping plate.
9. A process for replacing a riser wire rope according to any one of claims 1-3, characterized in that: the specific process of step S6 is as follows:
s61: after all the old ropes are completely collected, the main skip is moved to the position of a wellhead operation platform, the first rope lifting device is used for clamping all the steel wire ropes on the side of the main skip, and meanwhile, 4 steel wire ropes on the side of the auxiliary skip are locked on the derrick by a rope locking device;
s62: withdrawing the old rope ends of the 1# and 4# ropes on the main skip side, arranging the new rope ends of the 1# and 4# ropes in the corresponding steel wire rope connecting devices, and making the new rope ends of the 1# and 4# ropes;
s63: the 2# and 3# steel cords were replaced in the same way.
10. A process as claimed in claim 2 or 3, wherein: the specific process of step S7 is as follows:
s71: oil is injected into hydraulic rope regulators of a main skip and an auxiliary skip of a wellhead operation platform, so that the static tension of each rope is basically consistent;
s72: and observing the running states of the main skip and the auxiliary skip, and taking up the rope when the steel wire rope becomes long.
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| CN202010871526.2A CN111994762A (en) | 2020-09-17 | 2020-09-17 | Vertical shaft hoisting steel wire rope replacing process |
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| CN202010871526.2A CN111994762A (en) | 2020-09-17 | 2020-09-17 | Vertical shaft hoisting steel wire rope replacing process |
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| CN101417765A (en) * | 2008-11-22 | 2009-04-29 | 太原理工大学 | Gig head rope synchronous continuous replacement apparatus |
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| CN204251168U (en) * | 2014-10-27 | 2015-04-08 | 平煤神马建工集团有限公司 | Multi-rope friction hoist head rope changes system without stable car |
| CN105016184A (en) * | 2015-07-08 | 2015-11-04 | 徐州九益科技有限公司 | Replacement process for lifting steel wire rope of vertical shaft multi-rope friction lifter |
| CN108910668A (en) * | 2018-08-07 | 2018-11-30 | 中煤第三建设集团机电安装工程有限责任公司 | Method for quickly replacing vertical shaft lifting rope and lifting container in same cycle |
| CN110877852A (en) * | 2019-11-27 | 2020-03-13 | 山东东山古城煤矿有限公司 | System and method for quickly replacing rope of vertical shaft friction type elevator |
-
2020
- 2020-09-17 CN CN202010871526.2A patent/CN111994762A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU971772A1 (en) * | 1979-11-06 | 1982-11-07 | Норильский Ордена Ленина И Ордена Трудового Красного Знамени Горно-Металлургический Комбинат Им.А.П.Завенягина | Method of replacing ropes in multirope hoisting installations |
| AU2007239440A1 (en) * | 2006-04-18 | 2007-10-25 | Kone Corporation | Method and appliance for collecting rope |
| CN101417765A (en) * | 2008-11-22 | 2009-04-29 | 太原理工大学 | Gig head rope synchronous continuous replacement apparatus |
| CN101503164A (en) * | 2009-02-06 | 2009-08-12 | 中煤第三建设（集团）有限责任公司 | Special rope groove for changing mining multiple rope pulley hoist steel wire rope |
| CN204251168U (en) * | 2014-10-27 | 2015-04-08 | 平煤神马建工集团有限公司 | Multi-rope friction hoist head rope changes system without stable car |
| CN105016184A (en) * | 2015-07-08 | 2015-11-04 | 徐州九益科技有限公司 | Replacement process for lifting steel wire rope of vertical shaft multi-rope friction lifter |
| CN108910668A (en) * | 2018-08-07 | 2018-11-30 | 中煤第三建设集团机电安装工程有限责任公司 | Method for quickly replacing vertical shaft lifting rope and lifting container in same cycle |
| CN110877852A (en) * | 2019-11-27 | 2020-03-13 | 山东东山古城煤矿有限公司 | System and method for quickly replacing rope of vertical shaft friction type elevator |
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Application publication date: 20201127 |
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