CN115180489B

CN115180489B - Method for rapidly replacing mine large-scale hoister roller

Info

Publication number: CN115180489B
Application number: CN202210798133.2A
Authority: CN
Inventors: 张曙光; 陈明; 孙幸; 吴向东; 余峰; 林勇; 王传勇; 李强; 吴晓龙
Original assignee: China Coal Third Construction Group Mechanical And Electrical Installation Projects Ltd; China Coal No 3 Construction Group Co Ltd
Current assignee: China Coal Third Construction Group Mechanical And Electrical Installation Projects Ltd; China Coal No 3 Construction Group Co Ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2024-02-27
Anticipated expiration: 2042-07-06
Also published as: CN115180489A

Abstract

The invention discloses a method for quickly replacing a roller of a large mine hoist, which belongs to the technical field of mine equipment updating and comprises the following steps: s1: preparing a front; s2: skip adjustment; s3: a lifting member; s4: disassembling; s5: hoisting; s6: restoring cleaning; s7: running and debugging; s8: and (5) load test. According to the invention, the hoisting rigging is matched with the eight-storied building crane to carry out sectional dismantling and assembling on the roller components of the western-style car hoist, and after the roller is replaced, the related electromechanical facilities matched with the roller are restored, so that a construction method with strict organization framework and comprehensive flow supervision is formed, the efficiency is improved, potential safety hazards in the construction process are greatly reduced, transportation and arrangement of equipment facilities such as a site crane are facilitated, and the coal of an anti-collision beam, a bottom loading chamber girder and a skip is cleaned in advance, so that the weight of the skip is reduced to the greatest extent.

Description

Method for rapidly replacing mine large-scale hoister roller

Technical Field

The invention relates to a method for replacing a roller of a mine hoist, and belongs to the technical field of mine equipment updating.

Background

The existing mine main shaft is in a shaft tower type and double-system lifting mode, six-rope friction type built-in motor lifting machines are mostly adopted, the diameter of a lifting machine roller is large, and the lifting machine drives a coal lifting skip to lift; an electric hoisting bridge crane is arranged in the garage, and a main hook is required to provide a large load pulling force; the roller needs to be updated after the elevator is used for a long time, if the elevator is replaced by a direct whole set of equipment, the period is long, the cost is high, a special construction mode needs to be designed, the roller part components are replaced, the efficiency is improved, and the safety is ensured

How to develop a method for quickly replacing the roller of a large mine hoist is a current urgent problem to be solved.

Disclosure of Invention

The invention mainly aims to solve the problems that in the prior art, after a lifter is used for a long time, a roller needs to be updated, if the lifter is replaced by a direct whole set of equipment, the period is long and the cost is high, and provides a method for quickly replacing the roller of a large mine lifter.

The aim of the invention can be achieved by adopting the following technical scheme:

a method for rapidly replacing a mine large elevator drum, comprising the steps of:

s1: preparing a front; carrying out box opening inspection and acceptance on main shaft hoist roller equipment and components, and carrying out field arrangement on related components;

s2: skip adjustment; the skip is utilized to align and mark the position, so that the operation stability and the use safety of the skip are ensured;

s3: a lifting member; before the roller is dismantled, related components are required to be separated gradually, related transmission connection is cut off, and meanwhile, after the roller is dismantled, enough roller access space is reserved, so that collision interference with subsequent building equipment is avoided;

s4: disassembling; disassembling a fixed connecting piece used by the roller, separating a braking connection of the fixed connecting piece, pre-disassembling and fixing components in the roller, disassembling the braking component, packaging, cleaning and storing;

S5: hoisting; hoisting the novel roller through hoisting equipment, connecting the novel roller with a transmission member, constructing a novel connection relationship, and performing alignment fixing and lubrication;

s6: restoring cleaning; pressing the cable and the winding terminal inside the roller according to the marks made before; the sliding ring is installed by using a hanging belt to cooperate with a travelling crane, and the sliding ring is fastened with a roller connecting bolt according to requirements; after the wiring inside the roller is restored, cleaning the inside of the roller by using industrial alcohol to ensure that no metal articles exist, restoring glass windows of all observation holes, sealing and installing bearing seat end covers on two sides, and fastening bolts;

s7: running and debugging; after the new roller is installed, operation debugging is needed, the fitting degree with the existing power system is determined, and operation maintenance is performed at the same time to check hidden trouble;

s8: load test; when testing, the load should be increased in stages, and the load is generally loaded in three stages: 25% of the design load is continuously operated for 4-6 hours; 50% of the design load is continuously operated for 4-6 hours; 75% of the design load is continuously operated for 4-6 hours; 100% of the design load is continuously operated for 24-28 hours; the continuous operation is stopped every 8-10 hours, the whole machine is fully checked once, the whole machine is normal, the machine can be started to continue the test operation, and after the operation, the connecting screw of the roller is fastened once again.

Further, the step S2 includes the following steps:

a1: transferring original idle components near the main shaft wellhead, emptying the site, cleaning sundries and inflammables, and overhauling the elevator to ensure normal operation;

a2: a well sinking and stabilizing vehicle is arranged on the western side of the main tower, the well sinking and stabilizing vehicle respectively slides on a concrete ground anchor by using a steel wire rope, and a floor type complete distribution box is arranged on one side of the well sinking and stabilizing vehicle;

a3: lowering the western skip to the bottom of the well, building a construction platform at the well mouth of the western skip, clamping the double-end of the rope sleeve of the hung pulley block upwards on the head rope of the western skip by using the rope clamp, continuously lifting the western skip, clamping the rope by using the rope clamp again after lifting, removing the first rope clamp when the rope sleeve of the hung pulley block is lifted above the anti-collision beam, pulling the two rope heads to the east side, continuously lifting the skip to remove the rope clamp until the head rope of the hung pulley block is hung on the anti-collision beam of the eastern skip, and protecting the contact part of the beam and the steel wire rope by using the pipe skin;

a4: the pulley is penetrated into a pulley block by a steel wire rope on a well sinking steady car at a west side space of a main well frame, a steel wire rope clamp is arranged at the rope end, and the fixed pulley of the pulley block and the two ends of the running pulley are respectively connected together by a shackle and a steel wire rope sleeve, so that the running pulley is prevented from sliding downwards when the pulley block is lifted;

A5: arranging a stabilizing car outside an east-side house of a main well mouth, connecting electricity and debugging normally, winding a steel wire rope on a stabilizing car roller, and sliding the stabilizing car on a concrete ground anchor after using the steel wire rope;

a6: the starting equipment and the transmission component are inspected, and on-site maintenance and energy supply allocation are performed.

Further, in step S2, the following means are included:

b1: lifting an east skip to the ground, stopping the east skip at a position higher than the horizontal position of a wellhead, marking the bottom of the skip and the wellhead position, marking the top of the skip and the vertical frame position, removing a safety door rail and a platform steel plate corresponding to the south side of the wellhead west car by using a self-propelled crane, cleaning sundries on a bottom plate beam of the wellhead, stopping the top end of the east skip to the wellhead, checking the telescopic condition of six groups of head rope suspension cylinders on the side of the east skip, pressing the six groups of cylinders at the same time if the telescopic quantity of the cylinders is still remained, and removing a rain shed on the top end of the east skip;

b2: the method comprises the steps that constructors respectively hoist a pulley block to an east skip by using a stable trolley, fixing the pulley block and an east skip head rope suspension device together by using a steel wire rope sleeve, lifting the east skip to bring the pulley block to a rope sleeve of a hanging pulley block, namely, keeping the length of a rope in advance when lifting the east skip, respectively hoisting the pulley block to a certain height by using a stable trolley outside an east side house of a wellhead, respectively connecting and suspending the pulley block through a shackle and the steel wire rope sleeve hung on an anti-collision beam, and respectively hanging a single-handle pulley on a 5-building anti-collision beam and a wellhead sleeve bottom plate beam by using rope sleeves to serve as a redirecting pulley of a shaft sinking stable trolley running rope, and pulling the pulley to a vertical frame marking position by using the skip;

B3: lifting a skip to the ground, stopping the skip at a wellhead position, lifting the skip steel frame to the wellhead skip passenger position by using a self-lifting machine, hanging a chain block on a south-north beam of the skip passenger position, mounting the skip steel frame to the passenger position by using the chain block, stopping the skip to a bottom loading chamber position after fixing, arranging the skip steel frame on a bottom frame girder in the north-south direction by using the chain block from a secondary well, notifying a lifting machine to drop the skip after finishing, stopping the skip until the skip is lifted on the bottom frame girder, locking a head rope by using a double-code rope selecting device of a skip side, protecting each installation square board clamp above the head rope by using a red paint spraying mark, and leaving the skip head rope on a 8-floor type gate base bolt by using a long board clamp matched with a steel wire rope sleeve by 8-floor constructors;

b4: stopping the operation of the main well lifting system when the skip is lifted, powering off the high-pressure side and the low-pressure side of the trolley lifting machine, removing the roller shield of the main well trolley of the eight-storey building, and lifting the roller shield to the first storey by using a crane; and two stable vehicles are simultaneously started to collect ropes, the east skip is slowly lifted, namely, when the east skip is lifted, personnel monitoring is arranged at the position of a tail rope blocking beam at the bottom of the well, when the east skip is higher than the well head, the car is stopped, I-steel is hung to the bottom of the east skip by utilizing the stable vehicles to cooperate with a self-lifting vehicle, the car is put on a sleeve bottom plate beam in a north-south direction, after the I-steel is aligned, the car is continuously welded with the bottom plate beam, the two stable vehicles synchronously pay off the ropes to enable the skip to fall, meanwhile, a 6-floor double-code rope selecting device synchronously and continuously drops the head rope until the bottom of the skip is stably placed above the I-steel for stopping, and after the car is placed stably, two groups of stable vehicle running ropes are respectively reserved on the sleeve bottom plate beam at the well head by using a steel wire rope and a rope clip.

Further, in step S3, the following measures are specifically included:

c1: the head ropes of the dollies are respectively clamped by using a through long plate clamp in the building 7, namely, the head ropes are lifted by using a chain block at a position below 5 meters away from the floor of the building 8, and the lifting ropes on the roller are loosened after the lifting; at the moment, all the gate heads of the four disc-shaped gates are all opened, manual ball valves for oil inlet and outlet of each disc-shaped gate are closed, all the gate heads are in an open state, and the total oil inlet and outlet pipe opening of each disc-shaped gate hydraulic oil pipe is removed and blocked by a clean plastic bag and a clean plug;

c2: marking the bottom of each disc brake by using self-spraying paint, utilizing a lifting rope to cooperate with a travelling crane to hold the disc brake to be removed, utilizing a hydraulic wrench to remove anchor bolts of a disc brake seat, lifting the disc brake to a temporary disc brake base processed in advance on the southeast side of a shaft tower hall after removing the anchor bolts, and fixing the disc brake by bolts;

and C3: removing cooling air cylinders connected with bearing seats on the north and south sides of a roller of a western-style vehicle, covering open parts, preventing foreign matters from entering, distributing loose lifting ropes on the roller to the north and south sides of the roller after removing the air cylinders, winding the head ropes with raw rubber belts, removing electric brushes, a tachogenerator and a slip ring encoder, removing cables connected with parts such as cables connected with a sliding ring frame of the roller of the western-style vehicle and a stator inside the roller, marking and protecting each cable before removing, namely binding and protecting by rubber, placing and fixing at a place which does not affect the replacement of the roller, removing a connecting busbar between two roller windings, removing a slip ring and a rotor connection before removing the slip ring, and needing to melt copper welding.

Further, the specific operation flow is as follows:

d1: rotating the connecting position of the rollers to a horizontal position by utilizing a crane matched with a lifting roller rope sleeve, and simultaneously, arranging a half roller connected with a slip ring binding post at the lower part; before the roller is detached, magnetic pole protection is made, rubber protection is placed at the air gap position to prevent the coil from being damaged by collision during lifting, firstly, half of the roller which is not connected with the slip ring is detached, and then the other half of the roller is detached; since the bolt holes of the lifting roller are covered by the front roller reinforcing clamping plate, the roller reinforcing clamping plate is firstly removed; lifting the roller by using the steel wire rope sleeves, wherein one ends of the steel wire rope sleeves are respectively connected with a lifting beam by using shackles, and the other ends of the two steel wire rope sleeves are hung on a travelling car coupler in a double-headed manner, so that the travelling car is lifted to a certain height and a certain position;

d2: removing connecting bolts and roller clamping plate bolts in the roller by using a hydraulic wrench, and removing positioning bolts between the brake disc and the roller by using special nuts and jackscrews; the travelling crane is provided with force, the connecting bolts of the roller and the brake disc are removed, and after the connecting bolts of the roller at the upper half part are removed completely, the upper half roller is removed by the travelling crane; the dismantled upper half roller is transported to the first floor by using an eight-floor travelling crane;

d3: turning over the hoister roller 180 degrees by using a hoisting rigging and a travelling crane; when the roller is turned over, after the roller is turned over to a certain position, installing temporary brackets on two sides of the roller, and dismantling the lower half roller by the same method;

D4: the method comprises the steps that two brake discs on two sides of a roller of a western-style vehicle are combined together, as in a dismantling method of the roller, a sling is used for matching with a crane to pull the joint of the brake discs to a horizontal position, then a lifting rope is used for matching with the crane to hold the brake discs on the upper half part, a constructor uses a hydraulic wrench to dismantle bolts on the joint, and uses the crane to hoist the brake discs on the upper half part to a building space, the lifting rope and the crane are used for rotating the brake discs by 180 degrees, when the brake discs are overturned, temporary supports on two sides of the roller are installed to support the brake discs after the brake discs are overturned to a certain position, and the overturned brake discs are dismantled and transported to the building in the same way;

d5: cleaning a motor stator, and performing insulation measurement after cleaning; two ends of the siren hoist are symmetrically threaded into the inner thread hole through the bolt holes of the bearing end cover; removing the fixing bolt of the bearing end cover, and ejecting the bearing end cover by using a jackscrew; removing inner and outer bearing end covers at two ends of the lifting machine by using lifting rigging and traveling crane, and then removing oil stains on the surface by using cotton cloth; after the sealing rings of the bearing rotating shafts at the two ends of the lifting machine are replaced, the bearings are checked and adjusted by using a special measuring tool, after checking and confirming, the bearing end covers at the two ends are restored to be installed by using a sling tool to cooperate with a crane, and the bearing end covers are suspended on bearing seat bolts by using jackscrews, so that the cover is temporarily not required to be closed;

D6: cleaning new brake discs on two sides of a western vehicle, preparing connecting bolts, respectively hanging the cleaned brake discs to the positions of a lifting port of a main well by using a hanging belt to match with an external automobile crane of a wellhead, and catching and transporting the cleaned brake discs to eight layers of lifting machine rooms by using a crane in a wellhead; the driving is utilized to firstly mount half brake discs on bearings on the south and north sides, the brake discs are connected by bolts, but are not fastened, after the bolts are connected, the driving is utilized to rotate the brake discs mounted on the driving to the lower part, and the rest two brake discs are mounted, and are not fastened firstly by bolts.

Further, in the process D3, the demolition rule is followed: each roller member is required to be lifted to a first floor space by an eight-floor crane.

Further, in step S5, the following procedure is specifically included:

e1: a new roller component, namely a half of the roller connected with the slip ring binding post, is hung to the position of a lifting hole in the wellhead room by utilizing an automobile crane outside the wellhead room, then is driven to a eight-layer bearing beam platform of the wellhead, a special lifting beam is installed, the roller is lifted, and all connecting surfaces of the roller are cleaned firstly; then lifting to the upper part of one side bearing seat, slowly lowering the crane hook head, installing a connecting bolt when the edge of the crane hook head is aligned with the bolt holes of the outer protective covers of the bearing seats at the two sides, installing the connecting bolt temporarily, and uniformly fastening after the rollers are installed and aligned, wherein the half rollers are connected with the slip ring through bolts, so that a binding post of the slip ring penetrates through a brake disc and is connected with the bearing through four temporary bolts, and the bolts temporarily are not fastened;

E2: removing the lifting beam of the roller after the upper half of the roller is mounted, rotating the half of the roller to the lowest part by utilizing the steel wire rope matched with the travelling crane, removing the steel wire rope, and mounting the lifting beam on the other half of the roller by utilizing the travelling crane, wherein the other half of the roller is mounted in the same way;

e3: after the two halves of the drum are installed in place and the brake discs are all aligned, the following established principles are necessary: the two dial indicators respectively measure the axial runout and the radial runout of each brake disc, and meet the regulation prescribed value, constructors firstly fill up and fasten the connecting bolts in the roller according to the moment requirement by using a hydraulic wrench according to the design fastening force of the Simarouba company, after the connecting bolts in the roller are completely fastened, the connecting clamping plates on the side surface of the roller are installed, then the connecting bolts between the brake discs and the bearings are fastened firstly, and finally the connecting bolts between the roller and the brake discs are fastened;

e4: oiling the roller bearing by using special oil for bearing lubricating grease, and repairing the liner on the roller by using the hanging belt to rotate the roller in cooperation with the travelling crane; installing an encoder, an electric brush, a tachogenerator, a connecting cable and other electrical accessories on the slip ring at the slip ring side, welding connection between the slip ring binding post and the busbar by a professional, and recovering connection between the connecting cable of the stator and the busbar between the two half-drum windings;

E5: and (3) restoring the installation and alignment of the four groups of disc brakes by using a travelling crane, dismantling a protective sleeve of a total oil inlet and outlet pipe opening of each disc brake hydraulic oil pipe, connecting the oil inlet and outlet pipes of a hydraulic station, fastening, opening a manual ball valve of an oil inlet and flushing pipeline of each disc brake, taking the end face of the brake disc as a reference, adjusting the gaps between the brake shoes at two sides and the brake disc by using a pressure adjusting brake cylinder of a western-style vehicle hydraulic station to match a dial indicator, and installing foundation bolts by using a hydraulic spanner after the four groups of disc brakes are exactly installed.

Further, in step S7, the bearing grease model is FAG LOAD400.

Further, in step S7, the idle operation is performed according to the following principles:

f1: and after the installation is finished, oiling is carried out, and the hydraulic station is filled with LP lead-free ashless antiwear hydraulic oil, and is required to be filled up and strict in dust entering.

F2: the power transmission is carried out after the flat cable inspection is carried out, the idle running test run is carried out for 8 hours at least, and the normal rotation and the reverse rotation are carried out for 4 hours respectively;

f3; after idle running, constructors open the bearing end covers at two sides, the ball stress of the bearing is adjusted according to the on-site actually measured bearing ball stress deviation and design requirements, and after the adjustment meets the requirements, the fastening bolts of the bearing covers at two sides are sealed to be normal.

Further, in step S7, the load operation is performed according to the following principle:

g1: after idling normally, the air channels on the north and south sides are restored section by using the travelling crane according to the requirements, the air channels are well connected and sealed, and bolts are well fastened;

and G2: placing the lifting ropes of the western vehicle into rope grooves corresponding to the new rollers one by utilizing the eight-story travelling crane, continuously and synchronously collecting the ropes of the well sinking and stabilizing vehicle, and lifting the ropes by using a skip until the I-steel is removed; removing temporary facilities such as side pedal tank girders of the auxiliary skip and a wellhead steel plate lining base by utilizing a stabilizing car and a crane; synchronously releasing the sinking and stabilizing rope to enable the skip to fall, and removing the rope locking device on the side of the main skip of the western vehicle after the sinking and stabilizing rope is not stressed; informing a hoist driver to lift the auxiliary skip at the maintenance speed, dismantling a steel wire rope between passengers, dismantling a pulley block by utilizing the up-and-down running of the auxiliary skip in cooperation with the stable car, and moving the dismantled temporary facility out of a wellhead room through a crane;

and G3: the driver of the western vehicle hoister firstly starts low speed and gradually increases the speed, divides the speed into a plurality of stages, runs for a plurality of times on one speed grade to confirm no problem, and then rises to the last speed grade until the speed reaches full speed, and the full speed running time is not less than 8 hours;

and G4: the idle bearing cap fastening bolt operation is repeated.

The beneficial technical effects of the invention are as follows: according to the method for quickly replacing the mine large-scale hoister roller, a western skip is kicked at a shaft bottom loading chamber position by using a combined steel frame, a western skip head rope is locked by using a double-code rope selecting device in six floors, then the eastern skip is lifted by using 2 16T shaft sinking and stabilizing vehicles arranged on the western side of a main shaft tower and matched with a pulley block hung on an eastern skip anti-collision beam, 4I 56b I-steel beams are lapped on a shaft head bottom plate beam in the north-south direction, the bottom of the skip falls onto I-steel, and the eastern skip head rope is stretched by 5 meters; the method comprises the steps of dismantling an air duct, dismantling relevant electromechanical facilities matched with a roller, protecting the relevant electromechanical facilities matched with the roller, pulling lifting ropes on the roller to the north and south sides by utilizing a crane, dismantling and assembling roller components of a trolley hoist by utilizing a lifting rigging matched with an eight-storey crane, recovering the relevant electromechanical facilities matched with the roller after the roller is replaced, forming a construction method with strict organization framework and comprehensive flow supervision, improving efficiency, greatly reducing potential safety hazards in the construction process, facilitating transportation and arrangement of equipment facilities such as a site crane, cleaning up coal of an anti-collision beam, a bottom loading chamber girder and a skip in advance, reducing the weight of the skip to the greatest extent, and relating to centralized recovery treatment of grease and avoiding environmental pollution.

Drawings

FIG. 1 is a schematic diagram of H80X 3 pulley block stress according to the present invention;

FIG. 2 is a schematic diagram of the stress of a welded I-steel according to the present invention;

fig. 3 is a schematic diagram of a 400-section steel non-centered concentrated load force according to the present invention.

Detailed Description

In order to make the technical solution of the present invention more clear and obvious to those skilled in the art, the present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Example 1:

the method for quickly replacing the mine large-scale hoister roller provided by the embodiment comprises the following steps:

s1: preparing a front; the method comprises the steps of carrying out box opening inspection and acceptance on main shaft hoist roller equipment and components, and carrying out field arrangement on related components, and specifically comprises the following steps:

a2: the well sinking and stabilizing vehicle is arranged on the western side of the main tower, the well sinking and stabilizing vehicle is 16T in specification, the well sinking and stabilizing vehicle respectively slides on a concrete ground anchor after using steel wire ropes, the diameter of the steel wire ropes is 28mm, and one side of the well sinking and stabilizing vehicle is provided with a floor type complete distribution box;

a3: lowering the western skip to the bottom of the well, building a construction platform at the well mouth of the western skip, upwards clamping the rope sleeve of the hanging pulley block on the head rope of the western skip by using a rope clamp with the diameter of 48, continuously lifting the western skip, clamping the rope by using the rope clamp again after lifting for 7 meters, removing the first rope clamp when the rope sleeve of the hanging pulley block is lifted above the anti-collision beam, pulling the two rope heads to the east, continuously lifting the skip to remove the rope clamp until the head rope of the hanging pulley block is hung on the anti-collision girder of the eastern skip, and protecting the contact part of the girder and the steel wire rope by using a pipe skin;

A4: the method comprises the steps that 4H 80X 3 trolleys are threaded into 2 sets of pulley blocks by using 6X 37-FC-1670-phi 34.5mm steel wire ropes on two 16T well sinking and stabilizing trolleys at the west side space of a main well frame, 8 pairs of Y-36 steel wire rope clamps are arranged at the rope ends, the rope clamp distance is 200mm, and two fixed trolleys and two moving trolleys of the two sets of trolleys are respectively connected together by using 5T shackles and steel wire rope sleeves of phi 16, so that the moving trolleys are prevented from sliding downwards when the trolleys are lifted;

a5: a 5t car stabilizing device is arranged outside an east house of a main well mouth, the car stabilizing device is connected with electricity and is debugged normally, a phi 16mm steel wire rope 200m is wound on a 5t car stabilizing roller, and the 5t car stabilizing device slides on a concrete ground anchor after using the phi 28 steel wire rope;

a6: checking starting equipment and a transmission component, and performing field maintenance and energy supply allocation;

s2: skip adjustment; the skip is utilized to align the position and mark, so that the operation stability and the use safety of the skip are ensured, and the method specifically comprises the following steps:

b1: lifting an east skip to the ground, stopping the east skip at a position 6 meters higher than the horizontal position of a wellhead, respectively marking the bottom of the skip and the wellhead position and marking the top of the skip and the vertical frame position, so that comparison is made when the skip is lifted stably, a safety door rail and a platform steel plate corresponding to the south side of the wellhead west car are removed by using a 15t self-crane, sundries on a bottom plate beam of the wellhead are cleaned, the top end of the east skip is stopped to the wellhead, the telescoping condition of six groups of head rope hanging oil cylinders on the side of the east skip is checked, if the telescoping quantity of the oil cylinders still exists, the six groups of oil cylinders are pressed simultaneously until one group of oil cylinders is in place, and then the rain shed at the top end of the east skip is removed;

B2: the method comprises the steps that a constructor uses 5t steady cars to hoist two sets of trolley groups to an east skip, uses phi 16mm steel wire rope sleeves to fix the two sets of trolley groups and an east skip head rope suspension device together, uses the east skip to lift up to bring the trolley groups to the rope sleeve positions of the hanging trolley groups, namely, uses the steady cars to leave the length of a rope enough to run in advance when lifting the east skip, wears safety belts to a frame beam for operation, uses 5t steady cars outside an east house of a wellhead to hoist the trolley groups to a certain height, uses 2 sets of 80t shackles and 2 phi 48mm steel wire rope sleeves hung on an anti-collision beam to connect and suspend the two trolley groups, uses phi 32 rope sleeves to hang two H32×1 single-handle pulleys on the 5-floor anti-collision beam and a wellhead frame bottom plate beam respectively, and is used as a pulley for guiding the trolley of a head rope of the well sinking steady car to a stand marking position by using the skip;

b3: lifting a skip to the ground, stopping the skip at a wellhead position, lifting the skip steel frame to the wellhead skip passenger position by using a 15t self-lifting machine, hanging a 3t chain block on a north-south beam of the skip passenger position, installing the skip steel frame to the passenger position by using the chain block, after fixing, transporting to a bottom loading chamber position for stopping, at the moment, arranging the skip steel frame on a bottom sleeve frame girder in the north-south direction by using the chain block from a secondary well, informing a hoist driver of 0.1m/s speed to drop the skip until the skip is stopped on the bottom sleeve frame girder, simultaneously locking 6 head ropes by using a 6 head rope double-code rope selecting device (rope puller), installing 1 square plate cards above the 6 head ropes of the double-code rope selecting device for protection, and using red marks, and enabling 8 building constructors to leave a phi 16 rope seat on the bottom sleeve of the fill by using a long plate card for matching;

B4: when the skip is kicked, the main shaft lifting system stops running, and informs miners of power failure on the high-pressure side and the low-pressure side of the trolley lifting machine, the roller shield of the eight-building main shaft trolley is removed, and the trolley is lifted to the first floor. At the moment, the east skip is 20 m away from the ground, constructors dismount the east skip 1# and 6# hanging devices in the building 2, and the running pulleys of the two sets of pulley blocks are respectively connected with the 1# and 6# head hanging connecting holes by using 80t shackles. Two stable vehicles are started to collect ropes simultaneously, an east skip is lifted slowly by about 6 meters, namely, when the east skip is lifted upwards, personnel monitoring is arranged at a tail rope blocking beam of a shaft bottom, if the situation is immediately stopped, the east skip is lifted by the stable vehicles, 6 head ropes are lifted continuously by a double-code rope selecting device at the side of the east skip of the 6 building, the force applied by the double-code rope selecting device is the resultant force of the head ropes and the head ropes, when the east skip is lifted by 1 meter above a wellhead, the east skip is stopped, 2 groups of double 56# I-steel are lifted to the bottom of the east skip by using 5t stable vehicles and a 15t self-crane, after the I-steel is aligned, the two stable vehicles synchronously drop the ropes to enable the skip to fall down, and the double-code rope selecting device of the 6 building synchronously continuously drops the 6 head ropes until the bottom of the skip is stably placed above the 2 groups of double 56# I-steel, and after the two groups of the two stable ropes are respectively stopped by using a clamp of diameter steel wire ropes 32 and 7 phi 36 at the wellhead top of the wellhead;

S3: a lifting member; the related components of the roller are required to be separated gradually before the roller is dismantled, related transmission connection is cut off, and meanwhile, after the roller is dismantled, enough roller access space is reserved, collision interference with subsequent building equipment is avoided, and the method specifically comprises the following steps:

c1: the 3-hole through long plate clamp is used for clamping 3 groups of head ropes of the Dongcar in the 7 th floor, namely, the head ropes are lifted up by using a chain block at a position below 5 meters away from the 8 th floor, and the lifting ropes on the roller are loosened after the lifting. At the moment, coordinating mining staff to open all gate heads of the four disc gates by utilizing the pressure of a western vehicle hydraulic station, closing manual ball valves for oil inlet and oil outlet of each disc gate to enable all gate heads to be in an open state, dismantling the total oil inlet and outlet pipe opening of each disc gate hydraulic oil pipe, and plugging by using a clean plastic bag and a plug;

and C3: removing cooling air cylinders connected with bearing seats on the north and south sides of a roller of a western-style vehicle, covering open parts to prevent foreign matters from entering, distributing loose lifting ropes on the roller to the north and south sides of the roller after removing the air cylinders, winding the first ropes, removing electric brushes, a tachogenerator and a slip ring encoder, removing cables connected with parts such as cables connected with a sliding ring frame of the roller of the western-style vehicle and a stator in the roller, marking and protecting each cable before removing, namely binding and protecting by rubber, placing and fixing the cable at a place which does not affect the replacement of the roller, removing a connecting busbar between two roller windings, removing a slip ring and a rotor to connect, and needing to melt copper welding, mounting a self-made slip ring bracket on the north bearing seat of the western-style vehicle, removing connecting bolts of the slip ring and the roller of the elevator, and placing the slip ring on the processed slip ring bracket by utilizing a sling in a matching manner;

S4: disassembling; the fixed connecting piece used for the roller is disassembled, the braking connection is separated, the components in the roller are disassembled in advance and fixed, the braking components are disassembled, packaged and cleaned and stored, and the specific operation flow is as follows:

d1: the roller connection part is rotated to the horizontal position by utilizing the eight-storied building crane to cooperate with the lifting roller rope sleeve, and simultaneously, the half roller connected with the slip ring binding post is arranged at the lower part. Before the roller is detached, magnetic pole protection is made, rubber protection is placed at the air gap position to prevent the coil from being damaged by collision during lifting, firstly, half of the roller which is not connected with the slip ring is detached, and then the other half of the roller is detached. Since the bolt holes of the lifting drum are covered by the preceding drum reinforcing cleats, the drum reinforcing cleats are first removed for this purpose. 2 pairs of steel wire rope sleeves with the length phi of 48mm are used for lifting the roller, one ends of the two steel wire rope sleeves are respectively connected with a lifting beam matched with a cimex company through 50T shackles, the other ends of the two steel wire rope sleeves are hung on a 65T row coupler of an eight-storey building in a double-headed manner, a crane is lifted to a certain height and a certain position, a lifting beam base matched with the cimex company is connected with an upper half roller through a high-strength bolt with the length of 200mmM, and the crane is driven to carry out driving force;

D2: and removing the connecting bolts and the roller clamping plate bolts inside the roller by using a hydraulic wrench, and removing the positioning bolts between the brake disc and the roller by using special nuts and jackscrews. And (3) carrying out forced driving, starting to dismantle the connecting bolts of the roller and the brake disc, and removing the upper half roller by using the driving after the connecting bolts of the upper half roller are completely dismantled. (because the connecting bolts of the lower half roller are not removed, the upper half roller is possibly clamped and cannot be lifted, the positioning bolts between the lower half roller and the brake disc are detached before the upper half roller is removed, the brake disc and the bearing connecting bolts are detached, all the connecting bolts are in a loose state, and a certain gap is reserved between the brake discs on the north and south sides so as to be convenient for the lifting of the brake disc on the upper half roller.) the removed upper half roller is driven to a first floor by using an eight-floor crane;

d3: the hoist drum is turned 180 degrees by using the hoist rigging and the crane (when turning the drum, the large hook head of the crane is used for turning, and when the large hook head is about 50 degrees, the small hook head is used for keeping the upper edge of the drum). When the roller is turned over, after the roller is turned over to a certain position, installing temporary brackets on two sides of the roller, and dismantling the lower half roller by the same method;

and follow the demolition principle: each roller component needs to be lifted to the first floor space by a travelling crane of eight floors;

d5: cleaning a motor stator, and performing insulation measurement after cleaning; and 8M 16 multiplied by 220 bolts are used for the bearing end covers at each side of the two ends of the west car hoister, and symmetrically penetrate through the bearing end cover bolt holes and are screwed into the inner thread holes. Removing the fixing bolt of the bearing end cover, and ejecting the bearing end cover by using a jackscrew; removing inner and outer bearing end covers at two ends of the lifting machine by using lifting rigging and traveling crane, and then removing oil stains on the surface by using cotton cloth; after the sealing rings of the bearing rotating shafts at the two ends of the lifting machine are replaced, the bearings are checked and adjusted by using a special measuring tool, after checking and confirming, the bearing end covers at the two ends are restored to be installed by using a sling tool to cooperate with a crane, and the bearing end covers are hung on 8M 16 multiplied by 220 bolts of the bearing seat by using jackscrews, so that the cover is temporarily not required to be closed;

D6: the novel brake discs on two sides of the western vehicle are cleaned, connecting bolts (molybdenum disulfide is required to be smeared before the bolts are installed) are prepared, the cleaned brake discs are respectively hung to the lifting port of the main well by using a hanging belt to be matched with an external automobile crane at the wellhead, and the brake discs are caught and beaten into eight layers of lifting machine rooms through the traveling in the wellhead. Firstly, mounting half brake discs on bearings on the south and north sides by using a travelling crane (two brake discs on each side are different, corresponding numbers are arranged on each brake disc, the side surface of each brake disc is provided with a round hole, the slip ring is arranged on the side surface of the brake disc), connecting the brake discs by using bolts, but not fastening, after the bolts are connected, rotating the brake discs mounted on the upper side to the lower part by using the travelling crane, mounting the rest two brake discs, and likewise, firstly not fastening by using the bolts;

s5: hoisting; the novel roller is hoisted through hoisting equipment, and meanwhile, the novel roller is connected with a transmission member to form a novel connection relationship, and alignment, fixation and lubrication are carried out, and the novel roller comprises the following steps:

e1: and a new roller component, namely a half roller connected with the slip ring binding post, is hung to the position of a lifting hole in the wellhead room by using a 160t automobile crane outside the wellhead room, then is transported to an eight-layer spandrel girder platform of the wellhead by using a crane, a special lifting girder is installed, the roller is lifted, and all connecting surfaces of the roller are cleaned. Then lifting to the upper part of one side bearing seat, slowly lowering the crane hook head, installing connecting bolts when the edges of the crane hook head are aligned with the bolt holes of the outer protective covers of the bearing seats at the two sides, installing the connecting bolts temporarily, and uniformly fastening after the rollers are installed and aligned, wherein the half rollers are connected with the slip rings through bolts, so that the binding posts of the slip rings penetrate through the brake disc, are connected with the bearings through four temporary bolts, and are temporarily not fastened. The half roller which is firstly installed is installed at the uppermost part of the brake disc, the roller and the brake disc are positioned together by using a positioning pin, then a traveling crane is used for installing a slip ring device, a bracket for retaining the slip ring is removed, a connecting bolt between the roller and the brake disc is installed, molybdenum disulfide is smeared on the bolt before the installation, and the bolt is only connected and not fastened;

E2: removing the lifting beam of the roller after the upper half of the roller is mounted, slowly rotating the half of the roller to the lowest part by utilizing a steel wire rope (the steel wire rope with proper length is selected) and matching with a travelling crane, removing the steel wire rope, and mounting the lifting beam on the other half of the roller by utilizing the travelling crane, wherein the other half of the roller is mounted in the same way;

e3: after the two halves of the drum are installed in place and the brake discs are all aligned, the following established principles are necessary: the two dial indicators respectively measure the axial runout and the radial runout of each brake disc, and meet the regulation prescribed value, constructors use hydraulic wrenches to supplement and fasten the M42 connecting bolts in the drum according to the moment requirement, after the connecting bolts in the drum are completely fastened, the connecting clamping plates on the side surface of the drum are installed, then the connecting bolts between the brake discs and the bearings are fastened firstly, and finally the connecting bolts between the drum and the brake discs are fastened;

e4: and (3) oiling the roller bearing by using special oil for FAG LOAD400 bearing lubricating grease, and supplementing the liner on the roller by rotating the roller by using the hanging belt to cooperate with the travelling crane. Installing an encoder, an electric brush, a tachogenerator, a connecting cable and other electric accessories on the slip ring side, and the like at the gap time of installing the gasket, welding connection between the slip ring binding post and the busbar by a professional, and recovering connection between the connecting cable of the stator and the busbar between the two half-drum windings;

E5: and (5) using a travelling crane to restore the installation and alignment of the four groups of disc brakes. Coordinating mining personnel to debug the hydraulic station normally. And removing the protective sleeve of the oil inlet and outlet pipe of the hydraulic oil pipe assembly of each disc brake, connecting and fastening the oil inlet and outlet pipe of the hydraulic station, opening the manual ball valve of the oil inlet and flushing pipeline of each disc brake, taking the end face of the brake disc as a reference, and utilizing the pressure of the hydraulic station of the western vehicle to adjust the gaps between the brake shoes and the brake discs by matching with a dial indicator, wherein the deviation meets the design requirements of the Simaroubricate company. After the four groups of disc brakes are installed and found, the foundation bolts are installed by using a hydraulic spanner according to the moment designed by the Simaroubm company;

s6: restoring cleaning; pressing the cable and the winding terminal inside the roller according to the marks made before; the sliding ring is installed by using a hanging belt to cooperate with a travelling crane, and the sliding ring is fastened with a roller connecting bolt according to requirements; after the wiring inside the roller is restored, the inside of the roller is cleaned up by using industrial alcohol, so that no metal object is ensured, and the glass windows of all observation holes are restored. Sealing and installing end covers of bearing seats at two sides, and fastening bolts;

s7: running and debugging; after the new drum is installed, operation debugging is needed, the fitting degree with the existing power system is determined, operation maintenance is performed simultaneously, hidden danger is checked, and the idle operation is performed according to the following principle:

f3; after idle running, constructors open the bearing end covers at two sides, the ball stress of the bearing is adjusted according to the on-site actually measured bearing ball stress deviation and design requirements, and after the adjustment meets the requirements, the fastening bolts of the bearing covers at two sides are sealed to be normal;

the load operation is according to the following principle:

and G2: the lifting ropes of the western style vehicle are placed in rope grooves corresponding to the new roller one by utilizing eight-storied vehicle traveling (2 5T chain blocks are used for lifting the head rope hanging device in 6 storied vehicles through matching with a long plate clamp), two 16T shaft sinking stable vehicles are continuously and synchronously retracted, and the two 16T shaft sinking stable vehicles are lifted up by using a skip until I-steel can be removed. And removing temporary facilities such as side pedal tank girders of the auxiliary skip and a wellhead steel plate lining base by using the 5t steady car and a crane. And synchronously releasing the sinking and stabilizing rope to enable the skip to fall, and removing the rope locking device on the side of the main skip of the western vehicle after the sinking and stabilizing rope is not stressed. And informing a hoist driver to lift the auxiliary skip at the overhauling speed, dismantling the steel wire rope between passengers, dismantling the pulley block by utilizing the up-and-down running of the auxiliary skip and the 5t stable car, and moving the dismantled temporary facility out of the wellhead room through the crane. Restoring the auxiliary skip tank cap, safety door rails corresponding to the south side of the western vehicle, platform steel plates and other permanent facilities;

And G3: the driver of the western vehicle hoister firstly starts to lower the speed and gradually increases the speed, the speed can be divided into a plurality of stages, such as 2M/S,4M/S,6M/S,8M/S and the like, and when the driver runs for a plurality of times on one speed stage, the driver is determined to have no problem, the driver is further lifted into the last speed stage until the driver is at full speed, and the full speed running time is not less than 8 hours. After running, the connecting screw of the roller is fastened again;

and G4: repeating the operation of fastening the bolts by the idle bearing caps;

s8: load test; when testing, the load should be increased in stages, and the load is generally loaded in three stages: 25% of the design load was run continuously for 4 hours; 50% of the design load was run continuously for 4 hours; 75% of the design load was run continuously for 4 hours; 100% of the design load was run continuously for 24 hours; the continuous operation is stopped every 8 hours, the whole machine is fully checked once, the whole machine is normal, the machine can be started to continue the test operation, and after the operation, the connecting screw of the roller is fastened once again.

Example 2:

the embodiment provides a method for quickly replacing a mine large-scale hoister roller, which comprises the following steps of:

(1) As can be seen from fig. 1, the steady running force is calculated:

the weight of the skip body is 53 tons (including the head and tail hanging), the total weight of the tail ropes is three, the single skip body is 14.5 tons, the total weight of the tail ropes is 43.5 tons, and the total weight of the tail ropes is 96.5 tons.

The maximum lifting weight is Q=96.5t, residual coal blocks which cannot be removed are arranged in the skip, the lifting weight is considered according to Q=100 t, 2 sets of pulley block systems are shared, and the number of working ropes of the pulley block is n=14.

The model of the steel wire rope on the well sinking and stabilizing roller is 6 multiplied by 37+FC-1670-phi 34.5mm, the total is 600 meters, and the breaking force of the steel wire rope on the well sinking and stabilizing roller is obtained through inspection data: 621.5KN;

the steel wire rope running tension S=Q× (1-eta) ×K/(1-eta) ×eta

＝100×(1-0.96)×1.1/(1-0.9614)×0.96

≈9.7t；

The safety coefficient n=62150/9700 is approximately equal to 6.4 and is more than 6, therefore, the steel wire rope with the diameter of 34.5mm is selected to meet the requirement, the guiding pulley selected by the running head rope is an H32 multiplied by 1 single handle opening pulley, the rope angles at two sides are considered according to 90 degrees,

fhe=1.414×s=1.414×9.7≡13.7t, so the H32×1 guide pulley is selected to meet the requirement;

calculation of pedaling western skip steel frame

Adding tail ropes to the skip: 55t

The steel frame of the skip is assembled and welded with H-shaped steel: the dimensions were H220 x 400 x 20 wx=1977.2cm3, [ delta ] =1600 kg/cm2;

as can be seen from fig. 2, under the condition that the assembly welding i-beam (placed in the north-south direction) concentrates the load acting force symmetrically, the maximum bending moment points are at the points F1 and F2, and the stress of 2 i-beams is calculated as follows:

f=55/2=27.5t=27500 kg,

the stress of the single I-steel is as follows: f=27500 kg, l=85 cm.

The maximum bending moment can be known at the point F1 or the point F2 under the stress condition, and is calculated as follows:

F1＝F2＝F＝27500kg；

M1(max)＝M2(max)＝F×L＝27500×85；

M1(max)＝M2(max)＝2337500kg.cm；

[δ]＝M1/Wx＝2337500/1977.2≈1182kg/cm2＜[δ]；

(3) Calculation of pedal and western skip girder

Adding tail ropes to the skip: 55t, the pedal skip girder, namely the bottom loading chamber girder is H400X 13X 21 section steel.

Wx＝3265cm3、[δ]＝1600kg/cm2

As can be seen from fig. 3, under the condition of non-centered concentrated load acting force, the maximum bending moment point is at the point F1, and the stress of 2 i-beams is calculated as follows:

f1=55/2=27.5t=27500 kg;

the stress of the single I-steel is as follows: f1 27500kg, l=763 cm, l1=132.5 cm, l2=630.5 cm.

M1(max)＝F×L1×L2/L＝27500×132.5×630.5/763；

M1(max)＝3010988kg.cm；

[δ]＝M1/Wx＝3010988/3265≈922kg/cm2＜[δ]；

(4) Checking of rope locking device of 6 th floor of western skip

The TT-B/160/6 double-code rope selecting device is used for locking the side head ropes of the 6-floor vehicle, the weight of the 6 head ropes is 43.5t, the maximum bearing capacity of the double-code rope selecting device is 160t, and the use requirement of the time is met

(5) Phi 48 rope sleeve check of H80X 3 fixed pulley unit

The weight of the skip body is 53 tons (including the head and tail hanging), the total weight of the tail ropes is three, the single skip body is 14.5 tons, and the total weight of the tail ropes is 43.5 tons. The maximum lifting weight is Q=96.5t, the coal blocks and the weights of the two sets of pulley blocks, the running rope and the shackle are attached to the inside of the lifting skip, and the lifting weight is considered according to Q=100deg.T.

The steel wire rope sleeve is folded into two for use, and the included angle coefficient is 1.155.

The minimum breaking force of the steel wire rope is obtained through inspection: 1700KN, single wire rope fifty percent discount uses, is equivalent to 2 wire rope head atress, and 2 nooses are equivalent to 4 atress.

The safety factor n=1700×4/(980×1.155) ≡6;

therefore, a rope sleeve with the diameter of 48mm is selected to be hung and fixed with the pulley block so as to meet the safety requirement.

(6) Checking phi 48 rope sleeve of lifting roller

The maximum lifting weight of the roller is 30t. Two pairs of 6V multiplied by 43+FC-1770-phi 48mm steel wire rope sleeves are selected, the angle of 45 degrees is adopted when the steel wire rope sleeves are lifted, and the maximum working load is 0.7 times of the rated load.

The safety factor n=170×2×0.7/30≡7.9;

(7) Calculation of wellhead kicking skip girder

(1) The weight of the two groups of double II56a# I-steel kicking skips is the weight of the skip body and the weight of the tail rope, and the total weight is calculated according to 100 t;

the stress points are calculated from 600mm to the beam edge of the bottom plate of the sleeve frame, and each stress point is calculated according to 25000 kg;

single group i56a# i-steel wx=2342 cm3, [ delta ] =1600 kg/cm2;

M＝25000×60＝1500000kg.cm；

δ＝M/Wx＝1500000/2342＝640kg/cm2<[δ]＝1600kg/cm2；

therefore, two groups of double II56a# I-steel are selected and used, and the use requirement of the current time can be met.

(2) The bottom plate beam of the wellhead housing frame is H800X 400X 12X 20 section steel.

Wx＝6009cm3、[δ]＝1600kg/cm2；

M1(max)＝F×L1×L2/L＝27500×283.2×452.7/763；

M1(max)＝4620744kg.cm；

[δ]＝M1/Wx＝4620744/6009≈769kg/cm2＜[δ]；

The stable running rope is left on the sleeve frame bottom plate beam which does not bear the skip on the western side, the tension force is 9.8t and is far smaller than the calculated bearing capacity of the skip, so the stable running rope is left on the sleeve frame bottom plate beam, and the use requirement is met.

(8) Well sinking steady vehicle stress check

The 16t well sinking and stabilizing car is horizontally discharged, and is reserved on a concrete ground anchor after being covered by a phi 28 steel wire rope, and is fixed by 8 anchor rods with M27 x 330.

The maximum tensile force born by the well sinking steady car is as follows: f=9.7t;

the breaking force of the phi 28 steel wire rope is 50t;

the safety factor n=50×4/9.7≡20;

therefore, the safety requirement is met by selecting a steel wire rope with the diameter of 28mm and then keeping the stable car.

The shearing force of the single ground anchor bolt is as follows: q=f/8= 1212.5kg;

δ＝Q/A＝1212.5/5.72＝212kg/cm2<[δ]；

example 3; this example provides a crane selection schedule for a method for rapidly replacing a mine large hoist drum of example 1, as shown in the following table:

through table look-up: according to the on-site investigation, the maximum radius gyration of a construction site is 10 meters, the lifting height is 8 meters, the main arm stretches to 18.1 meters, and the rated performance of the crane is 40t; the heaviest piece roller has the overall weight of 30t and meets the use requirement at this time.

To sum up, in this embodiment, according to the method for quickly replacing a drum of a large mine hoist of this embodiment, a combined steel frame is used to pedal a western skip at a bottom loading chamber position, a double-stacking rope selecting device is used to lock a western skip head rope at six floors, then 2 16T well sinking and stabilizing vehicles arranged on the western side of a main shaft tower are used to lift the eastern skip by 6 meters in combination with a pulley block hung on an eastern skip anti-collision beam, 4I 56b I-steel beams are put on a wellhead bottom plate beam in the north-south direction, the bottom of the skip falls onto the I-steel, and the eastern skip head rope is stretched by 5 meters at this time; the method comprises the steps of dismantling an air duct, dismantling relevant electromechanical facilities matched with a roller, protecting the relevant electromechanical facilities matched with the roller, pulling lifting ropes on the roller to the north and south sides by utilizing a crane, dismantling and assembling roller components of a trolley hoist by utilizing a lifting rigging matched with an eight-storey crane, recovering the relevant electromechanical facilities matched with the roller after the roller is replaced, forming a construction method with strict organization framework and comprehensive flow supervision, improving efficiency, greatly reducing potential safety hazards in the construction process, facilitating transportation and arrangement of equipment facilities such as a site crane, cleaning up coal of an anti-collision beam, a bottom loading chamber girder and a skip in advance, reducing the weight of the skip to the greatest extent, and relating to centralized recovery treatment of grease and avoiding environmental pollution.

The above is merely a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present invention within the scope of the present invention disclosed in the present invention. .

Claims

1. The method for quickly replacing the mine large-scale hoister roller is characterized by comprising the following steps of:

s2: skip adjustment; the skip is utilized to align and mark the position, so that the operation stability and the use safety of the skip are ensured; transferring original idle components near the main shaft wellhead, emptying the site, cleaning sundries and inflammables, and overhauling the elevator to ensure normal operation; a well sinking and stabilizing vehicle is arranged on the western side of the main tower, the well sinking and stabilizing vehicle respectively slides on a concrete ground anchor by using a steel wire rope, and a floor type complete distribution box is arranged on one side of the well sinking and stabilizing vehicle; lowering the western skip to the bottom of the well, building a construction platform at the well mouth of the western skip, clamping the double-end of the rope sleeve of the hung pulley block upwards on the head rope of the western skip by using the rope clamp, continuously lifting the western skip, clamping the rope by using the rope clamp again after lifting, removing the first rope clamp when the rope sleeve of the hung pulley block is lifted above the anti-collision beam, pulling the two rope heads to the east side, continuously lifting the skip to remove the rope clamp until the head rope of the hung pulley block is hung on the anti-collision beam of the eastern skip, and protecting the contact part of the beam and the steel wire rope by using the pipe skin; the pulley is penetrated into a pulley block by a steel wire rope on a well sinking steady car at a west side space of a main well frame, a steel wire rope clamp is arranged at the rope end, and the fixed pulley of the pulley block and the two ends of the running pulley are respectively connected together by a shackle and a steel wire rope sleeve, so that the running pulley is prevented from sliding downwards when the pulley block is lifted; arranging a stabilizing car outside an east-side house of a main well mouth, connecting electricity and debugging normally, winding a steel wire rope on a stabilizing car roller, and sliding the stabilizing car on a concrete ground anchor after using the steel wire rope; checking starting equipment and a transmission component, and performing field maintenance and energy supply allocation;

2. A method for rapidly replacing a drum of a large elevator for mines according to claim 1, wherein in step S2, the following means are included:

3. A method for rapidly changing a shaft large elevator drum as claimed in claim 1, characterized in that in step S3, the following measures are included:

4. The method for quickly replacing a roller of a large elevator for mines according to claim 1, wherein in the step S4, the specific operation flow is as follows:

5. A method for rapidly changing a mine large elevator drum as claimed in claim 4, wherein in process D3, the removal principle is followed: each roller member is required to be lifted to a first floor space by an eight-floor crane.

6. The method for quickly replacing a mine large elevator drum according to claim 1, wherein in step S5, the following procedure is specifically included:

e3: after the two halves of the drum are installed in place and the brake discs are all aligned, the following established principles are necessary: the two dial indicators respectively measure the axial runout and the radial runout of each brake disc, and meet the regulation prescribed value, constructors use hydraulic wrenches to repair and fasten connecting bolts in the drum according to the moment requirement, after the connecting bolts in the drum are completely fastened, connecting clamping plates on the side surface of the drum are installed, then the connecting bolts between the brake discs and the bearings are fastened firstly, and finally the connecting bolts between the drum and the brake discs are fastened;

7. A method for quick change of a mine hoist drum as claimed in claim 1, characterized in that in step S7 the bearing grease type is FAG LOAD400.

8. A method for quick change of a shaft large hoist drum as in claim 1, characterized in that in step S7, the idle operation is in accordance with the following principle:

f1: after the installation is finished, oiling is carried out, a hydraulic station is filled with LP lead-free ashless antiwear hydraulic oil, and the hydraulic station is required to be filled with the LP lead-free ashless antiwear hydraulic oil, and strict dust enters;

9. A method for quick change of a mine hoist drum as in claim 8, characterized in that in step S7, the load is operated according to the following principle:

And G4: the idle bearing cap fastening bolt operation is repeated.