CN114920118A - Steel wire rope tension-based vertical skip unloading residue early warning system and identification method - Google Patents
Steel wire rope tension-based vertical skip unloading residue early warning system and identification method Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/06—Applications of signalling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
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- B66B7/1215—Checking means specially adapted for ropes or cables
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Abstract
The invention relates to a steel wire rope tension-based vertical skip unloading residue early warning system and an identification method, wherein tension of a steel wire rope is measured at different speeds and before a skip enters a bend under a load and after the skip enters the bend and a gate is opened, and an expression of tension difference between the skip after entering the bend and before the bend with respect to the load and the speed is obtained by a data fitting method based on deep learning, so that bend resistance is obtained; then, unloading residues of the skip at different stages are obtained through a tension measuring device, and a 3-level early warning mechanism is established by combining the fused unloading residues obtained by a Kalman data fusion method; the invention can accurately analyze the unloading residue condition under the complex working condition.
Description
Technical Field
The invention relates to a steel wire rope tension-based vertical skip unloading residue early warning system and a steel wire rope tension-based vertical skip unloading residue early warning identification method, and belongs to the technical field of mine hoisting.
Background
One of the key factors affecting the safe operation of the elevator is whether the skip can be safely, smoothly and completely unloaded and loaded. The main well hoisting machine that present skip promoted mainly exists the shortcoming at the uninstallation in-process that the skip probably does not completely unload, exists the uninstallation and remains, and the skip carries out the basis weight loading under the circumstances of not unloading empty, leads to the lifting machine to overload operation, leads to the fatigue damage of wire rope and lifting machine.
The unloading residue is mainly manually judged, and in the unloading process, the motion of the skip unloading wheel in the unloading bend causes the opening and closing action of a gate, and the skip gate is greatly influenced by bend normal acting force, tangent friction force and the like in the opening process of the bend due to the skip gate entering the bend, so that the tension of a hoisting steel wire rope is greatly influenced; meanwhile, the speed of the skip entering the bend is different, and the coal load in the skip is different, so that the opening force of the gate is different; secondly, under the different loads and the resistance of speed down the pit shaft cage guide operation process of skip have the difference. Therefore, when the skip bucket arrives at different operation stages, the detection result of the tension of the hoisting steel wire rope is slightly different, and the unloading residue condition under the complex working condition cannot be accurately analyzed.
Disclosure of Invention
The invention provides a steel wire rope tension-based vertical skip unloading residue early warning system and a steel wire rope tension-based vertical skip unloading residue early warning identification method, which can accurately analyze the unloading residue condition under the complex working condition.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a residual early warning system for unloading of a vertical skip based on tension of a steel wire rope is disclosed, wherein a lifting system comprises a tension sensing probe, a main skip, an auxiliary skip, a lifting roller, a guide wheel, a lifting steel wire rope and the like, a main bend is arranged at the unloading position of the main skip, an auxiliary bend is arranged at the unloading position of the auxiliary skip, a gate of the main skip drives the lifting steel wire rope to move in the main bend for unloading through the lifting roller, and a gate of the auxiliary skip drives the lifting steel wire rope to move in the auxiliary bend for unloading through the lifting roller;
tension sensing probes are arranged above the main skip and the auxiliary skip, and receivers are arranged at a wellhead to receive and transmit detection signals; or the tension sensing probes are distributed on the two side edges of the hoister roller and the steel wire ropes which are connected with the skips on the two sides of the hoister roller; the tension sensing probes are all communicated with an operation control system, and the operation control system is simultaneously communicated with the early warning device;
as a further preferred aspect of the present invention, the hoisting system is a derrick type friction hoisting system or a floor type friction hoisting system or a winding type hoisting system;
in the well tower type friction lifting system, tension sensing probes are arranged above a main skip and an auxiliary skip, and a receiver is arranged at a well head; or the tension sensing probes are distributed on two side edges below the hoister roller;
in the floor type friction lifting system, tension sensing probes are distributed above a main skip and an auxiliary skip, and a receiver is arranged at a wellhead; or tension sensing probes are arranged on the side edge of the hoister roller towards the positions of the upper chord rope and the lower chord rope;
in the winding type lifting system, tension sensing probes are distributed above a main skip and an auxiliary skip, and a receiver is arranged at a well mouth; or tension sensing probes are arranged at the positions, facing the upper chord rope and the lower chord rope, of the side edge of the roller of the hoister.
A method for identifying unloading residues of a vertical skip based on tension of a steel wire rope specifically comprises the following steps:
step S1: recording the tension of all steel wire ropes concentrated on the skip bucket at different lifting distances at different speeds, specifically, lifting the empty main skip bucket and the empty auxiliary skip bucket to the middle position of a shaft, wherein the main skip bucket and the auxiliary skip bucket are both at the same horizontal position, and defining the acquired tension of the steel wire ropes as F 1 When the main skip and the auxiliary skip which are not placed are put down to leave the bend, the tension of the hoisting steel wire rope is F 4 ；
Setting n running speeds V of entering curved tracks n At a velocity of V 1 ～V n N is 2-6, and V is measured respectively in the main skip and the auxiliary skip under different loading conditions 1 ～V n The tension of the steel wire rope before and after entering the bend, and calculating and recording the tension difference;
step S2: determining the velocity V 1 The lower bend resistance is subjected to a data fitting method based on deep learning to obtain a speed V 1 Associated expression of tension difference between lower main skip and auxiliary skip after entering bend and before bend with respect to load
wherein ,
is a velocity V 1 Lower load M c The resistance of the curved track obtained in the process,
f is an activation function for the obtained parameters of the mapping model;
step S3: the velocity V is determined from formula (1) in step S2 2 ～V n The associated expression of the tension difference between the lower main skip and the auxiliary skip after entering the bend and before the bend with respect to the load is obtained, namely, the speed V is obtained 2 ～V n The resistance of the lower bend, in particular,
V 2 the expression at speed is:
V 3 the expression at speed is:
V 4 the expression at speed is:
V n the expression at speed is:
step S4: obtaining the velocity V by adopting a data fitting method based on deep learning 1 ～V n In the time, expressions of tension difference after the main skip and the auxiliary skip with different loads enter the bend and before the bend on the basis of load and speed
F μ (V n ,M c )＝Z{w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 }[V n ,M c ] (2)
wherein ,Fμ (V n ,M c ) Is a velocity V n Lower load M c The resulting bending resistance, V n The running speed of the main skip and the auxiliary skip into the curved track, M c Is the loading weight when the main skip and the auxiliary skip enter the bend, Z { w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 The skip is a mapping model of the tension difference and the load and the speed of the skip after entering the bend and before the bend obtained by training;
step S5: obtaining the bend resistance F of the skip during a certain lifting process in actual operation according to the formula (2) in the step S4 μe ＝Z{w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 }[V e ,M e], wherein Ve Is the speed of the skip when entering the bend during operation, M e Loading weight for the skip when in work;
step S6: when the skip is lifted at a certain time in actual operation, the tension F before the main skip and the auxiliary skip enter the bend is measured e1 Tension F after unloading of the main skip and the auxiliary skip after entering the bend e2 After the main skip and the auxiliary skip are unloaded, the main skip and the auxiliary skip are continuously lowered to the tension F after leaving the bend e3 ；
Step S7: calculating unloading residue of the skip at the stop operation stage, namely M r1 ＝F e2 -F e1 -F μe, wherein ,Fμe ＝Z{w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 }[V e ,M e ]；
Step S8: calculating unloading residue at the initial lower stage of the skip, namely M r2 ＝F e3 -F 4, wherein ,F4 The tension of the steel wire rope is lifted when the main skip and the auxiliary skip which are empty are put down to leave the bend;
step S9: the skip continues to move downwards until the stage of constant speed operation, and the tension F of the skip at any moment in the constant speed process is obtained e4 Obtaining unloading residue M of the dustpan at any time in the constant-speed operation stage r3 ＝F e4 -F h (x) In which F is h (x) The tension of the main skip and the auxiliary skip which are vacant at any time with respect to the lifting distance;
step S10: unloading residual M of the skip stop operation stage obtained in the steps S7, S8 and 9 r1 Unloading residue M at initial lower stage of skip r2 And unloading residue M in the constant speed operation stage r3 Obtaining fusion unloading residual M by Kalman data fusion method r ；
Step S11: unloading residual M based on skip stopping operation stage r1 Unloading residue M at initial lower stage of skip r2 Unloading residue M in uniform speed operation stage r3 And fusing the unload residual M r Respectively establishing a 3-level early warning mechanism for early warning;
as a further preferred aspect of the present invention,
in the actual operation, step S1 is to measure the main skip and the auxiliary skip respectively under different loadsUnder the condition of V 1 ～V n The method comprises the following steps of (1) measuring the tension of a steel wire rope before entering a bend and after entering the bend, and calculating and recording the tension difference, wherein the method specifically comprises the following steps:
step S1-1: when the main skip and the auxiliary skip are in no-load,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe 21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe 31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe 22 ，
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe 32 ，
Recording a main skip F under an empty skip state 22 And F 21 Auxiliary skip F 32 And F 31 Is the difference in tension of
F 23 ＝F 22 -F 21 ，F 33 ＝F 32 -F 3 ；
Step S1-2: the load of the main skip and the auxiliary skip is set to be F d The main skip and the auxiliary skip are loaded with the load F d 1/4 weight F a When the temperature of the water is higher than the set temperature,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe a21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe a31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe a22 ，
The auxiliary skip is lifted into the auxiliary bend rail to ensure that the auxiliary skipThe gate of the bucket is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe a32 ，
Recording the main skip F under the empty skip state a22 And F a21 Auxiliary skip F a32 And F a31 Is the difference in tension of
F a23 ＝F a22 -F a21 ，F a33 ＝F a32 -F a31 ；
Step S1-3: the load of the main skip and the auxiliary skip is set to be F d The main skip and the auxiliary skip are loaded with the load F d 1/2 weight F b When the temperature of the water is higher than the set temperature,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe b21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe b31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe b22 ；
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe b32 ，
Recording the main skip F under the empty skip state b22 And F b21 Auxiliary skip F b32 And F b31 Is the difference in tension of
F b23 ＝F b22 -F b21 ，F b33 ＝F b32 -F b31 ；
Step S1-4: the loads of the main skip and the auxiliary skip are set to be F d The main skip and the auxiliary skip are loaded with the load F d 3/4 weight F c When the temperature of the water is higher than the set temperature,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe c21 ，
Lifting the auxiliary skip to be enteredThe tension F of the hoisting steel wire rope is obtained by a tension sensing probe at the front position of the auxiliary skip bend c31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe c22 ，
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe c32 ，
Recording a main skip F under an empty skip state c22 And F c21 Auxiliary skip F c32 And F c31 Is the difference in tension of
F c23 ＝F c22 -F c21 ，F c33 ＝F c32 -F c31 ；
Step S1-5: the load of the main skip and the auxiliary skip is set to be F d The main skip and the auxiliary skip are loaded with the load F d When the temperature of the water is higher than the set temperature,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe d21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe d31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe d22 ，
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe d32 ，
Recording a main skip F under an empty skip state d22 And F d21 Auxiliary skip F d32 And F d31 Is the difference in tension of
F d23 ＝F d22- F d21 ，F d33 ＝F d32 -F d31 ；
As a further preferred aspect of the present invention,
in step S2, the concrete steps of obtaining the load-bend resistance fitting by the data fitting method based on the deep learning according to the actual tension and the tension difference obtained in the claim 3 are,
step S2-1: obtaining an estimated relation between load and resistance as an initial parameter of a deep learning network through theoretical simulation and empirical analysis;
step S2-2: carrying out data cleaning on the acquired load and the bend resistance data obtained by calculation, and eliminating obviously distorted data to obtain a training set of a load-bend resistance deep learning network model;
step S2-3: dividing a data set into a training set and a testing set, training the network model to obtain a mapping relation between load and bend resistance, and when the error of the model is smaller than a specified value epsilon, considering that an expression (1) of the load and the bend resistance is obtained;
as a further preferred aspect of the present invention,
the tension of the hoisting steel wire rope can be obtained by adopting the tension of a hoisting machine roller in a winch room at the top of the shaft or the tension measured by a main skip or an auxiliary skip;
as a further preferred aspect of the present invention,
when the tension of the hoisting steel wire rope is calculated by adopting the tension at the roller of the hoisting machine, the tension of the hoisting distance of the empty main skip and the empty auxiliary skip at any moment is
In formula (3), H is the lifting height from the loading position to the unloading position of the main skip or the auxiliary skip, x is the lowering distance through the main bend or the auxiliary bend after the main skip or the auxiliary skip is unloaded, and M k Is the dead weight of the main or auxiliary skip and its suspension device, M t Is the dead weight of the tail rope, M h To lift the dead weight of the wire rope, F 1 The tension of the steel wire rope is used for lifting the empty main skip and the empty auxiliary skip to the middle position of the shaft, and the main skip and the auxiliary skip are both in the same horizontal position;
in a further preferred embodiment of the present invention, when the tension of the hoist rope is calculated using the tension of the main skip or the sub skip, the tension of the hoist rope is calculated using the tension of the main skip or the sub skip
F h (x)＝M k (4)
In the formula (4), M k The main skip or the auxiliary skip and the hanging device thereof have the dead weight.
Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the identification method provided by the invention can measure the tension of the steel wire rope at the roller of the elevator and at the skip at the top of the shaft winch room in different operation stages, and monitor and analyze the residual condition in the skip in real time;
2. the identification method provided by the invention tests the resistance of the skip when the bend runs, and avoids the influence of the bend resistance on the unloading residual detection result;
3. according to the early warning system provided by the invention, the obtained unloading residues at each stage are fused to obtain fused unloading residues, and then a 3-stage early warning mechanism is established based on different unloading residues for early warning, so that an operator can timely adjust the early warning system.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a flow chart of a method for identifying unloading residues of a vertical skip based on the tension of a steel wire rope;
FIG. 2 is a schematic view of a skip unloading residual warning system using a derrick type friction lifting system according to embodiment 1;
FIG. 3 is a schematic view of a skip unloading residual warning system using a derrick type friction lifting system according to embodiment 2;
fig. 4 is a schematic view of a skip unloading residual warning system using a floor type friction lifting system of embodiment 3;
fig. 5 is a schematic view of a skip unloading residual warning system using a floor type friction lifting system of embodiment 4;
FIG. 6 is a schematic view of a skip unloading residual warning system using a winding type lifting system according to embodiment 5;
fig. 7 is a schematic view of the skip unloading residual warning system using the winding type lifting system of embodiment 6.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present application, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
At present skip is at the uninstallation in-process, can't ensure that it can all unload, simultaneously because the resistance reason of bend leads to the uninstallation of skip to remain the situation and can't make accurate analysis.
Therefore, the method for identifying the unloading residue of the vertical skip based on the tension of the steel wire rope not only can monitor and analyze the residue condition of the skip in each stage, but also considers the problem of the resistance of the bend, establishes an early warning mechanism for an early warning system while improving the precision of a detection result, and conveniently and timely adjusts the early warning system.
The application provides an early warning system can be applied to the hoist system of wound form or friction formula skip, also can be applied to the novel hoist system that winding and friction combined together, and application scope is wide. The steel wire rope tension-based vertical skip unloading residue early warning system and the identification method are explained in detail with respect to some embodiments below.
Example 1
The utility model provides a residual early warning system is unloaded to vertical skip based on wire rope tension, hoisting system adopts well tower formula friction hoisting system, as shown in fig. 2, including tension sensing probe, main skip, vice skip and lifting machine cylinder, the leading wheel, hoist wire rope etc. set up the main bend in the uninstallation position department of main skip, the uninstallation position department of vice skip sets up the vice bend, the gate of main skip makes its removal uninstallation in the main bend through lifting machine cylinder drive hoist wire rope, the gate of vice skip removes the uninstallation through lifting machine cylinder drive hoist wire rope in the vice bend.
Distributing tension sensing probes on two side edges of the lifting roller, facing the steel wire ropes connected with two sides of the roller, and detecting the tension of the steel wire ropes at the positions; the tension sensing probes are communicated with an operation control system, and the operation control system is communicated with the early warning device at the same time.
It should be noted that in the specific operation, the elevator roller is located in the winch room at the top of the shaft and is started by the motor, and the skip can also be called a container for placing the load.
As shown in fig. 1, a method for identifying residual unloading of a vertical skip based on tension of a steel wire rope is provided, and it can be known from the figure that tension of the skip under different conditions is obtained through a tension measuring device (i.e., a tension sensing probe), a bend resistance can be calculated through different tensions, unloading residues in different stages are calculated, finally, influence of the bend resistance on an unloading residual detection result can be avoided through comprehensive consideration of the bend resistance, a matched early warning mechanism is established through fusion of unloading residues in different stages, an operator can conveniently adjust an early warning system in time, and accurate comprehensiveness of detection is further guaranteed. The identification method specifically comprises the following steps:
step S1: the recording concentrates on all wire rope's on the skip tension when different promotion distances under different speeds, and is specific, promotes vacant main skip and vice skip to the intermediate position of pit shaft, and main skip and vice skip all are in same horizontal position, and the wire rope tension that the definition acquireed is F 1 When the main skip and the auxiliary skip which are not placed are put down to leave the bend, the tension of the hoisting steel wire rope is F 4 ；
Setting n entriesRunning speed V of curved track n At a velocity of V 1 ～V n N is 2-6, and V is measured respectively in the main skip and the auxiliary skip under different loading conditions 1 ～V n The tension of the steel wire rope before and after entering the bend, and calculating and recording the tension difference;
step S2: determining the velocity V 1 The lower bend resistance is subjected to a data fitting method based on deep learning to obtain a speed V 1 Associated expression of tension difference between lower main skip and auxiliary skip after entering bend and before bend with respect to load
wherein ,
is a velocity V 1 Lower load M c The resistance of the curved rail obtained in the process,
f is an activation function for the obtained parameters of the mapping model;
step S3: the velocity V is determined from formula (1) in step S2 2 ～V n The associated expression of the tension difference of the lower main skip and the auxiliary skip after entering the bend and before the bend with respect to the load is obtained, namely the speed V is obtained 2 ～V n The resistance of the lower bend, in particular,
V 2 the expression at speed is:
V 3 the expression at speed is:
V 4 the expression at speed is:
V n the expression at speed is:
step S4: obtaining the velocity V by adopting a data fitting method based on deep learning 1 ～V n In the process, expressions of tension difference between a main skip and an auxiliary skip with different loads after entering a bend and before the bend on load and speed
F μ (V n ,M c )＝Z{w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 }[V n ,M c ] (2)
wherein ,Fμ (V n ,M c ) Is a velocity V n Lower load M c The resulting bending resistance, V n The running speed of the main skip and the auxiliary skip into the curved track, M c Is the loading weight when the main skip and the auxiliary skip enter the bend, Z { w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 The obtained skip after entering the bend and before the bend is subjected to the training, and the obtained mapping model of the tension difference, the load and the speed;
step S5: acquiring the bend resistance F of the skip during a certain lifting process in actual operation according to the formula (2) in the step S4 μe ＝Z{w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 }[V e ,M e], wherein Ve Is the speed of the skip when entering the bend during operation, M e Loading weight for the skip when working;
step S6: when the skip is lifted at a certain time in actual operation, the tension F before the main skip and the auxiliary skip enter the bend is measured e1 Tension F after unloading of the main skip and the auxiliary skip after entering the bend e2 After the main skip and the auxiliary skip are unloaded, the main skip and the auxiliary skip are continuously lowered to the tension F after leaving the bend e3 ；
Step S7: calculating unloading residue of the skip at the stop operation stage, namely M r1 ＝F e2 -F e1 -F μe, wherein ,Fμe ＝Z{w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 }[V e ,M e ]；
Step S8: calculating unloading residue at the initial lower stage of the skip, namely M r2 ＝F e3 -F 4, wherein ,F4 The tension of the steel wire rope is lifted when the empty main skip and the empty auxiliary skip are lowered to leave the bend;
step S9: the skip continues to move downwards until the stage of constant speed operation, and the tension F of the skip at any moment in the constant speed process is obtained e4 Obtaining unloading residue M of the dustpan at any time in the constant-speed operation stage r3 ＝F e4 -F h (x) In which F is h (x) The tension of the main skip and the auxiliary skip which are vacant at any time with respect to the lifting distance;
step S10: unloading residual M of the skip stop operation stage obtained in the steps S7, S8 and 9 r1 Unloading residual M at initial lower stage of skip r2 And unloading residue M in the constant speed operation stage r3 Obtaining fusion unloading residual M by Kalman data fusion method r ；
Step S11: unloading residual M based on skip stopping operation stage r1 Unloading residue M at initial lower stage of skip r2 Unloading residue M in uniform speed operation stage r3 And fusing the unload residual M r And respectively establishing a 3-level early warning mechanism for early warning.
The present application then provides an example for making the relevant description:
in step S1, in actual operation, the main skip and the sub skip are respectively measured to have a V value under different loading conditions 1 ～V n The speed of the main skip and the speed of the auxiliary skip are respectively before and after the main skip and the auxiliary skip are in a bend state, and the tension difference is calculated and recorded, namely the main skip and the auxiliary skip are used for collecting the tension of the related hoisting steel wire rope according to different loads, so that preparation is made for related calculation of the bend resistance. The method specifically comprises the following steps:
step S1-1: when the main skip and the auxiliary skip are in no-load,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe 21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe 31 ，
Lifting the main skip into the main bend to completely open the gate of the main skip, and obtaining the tension F of the lifting steel wire rope through the tension sensing probe 22 ，
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe 32 ，
Recording a main skip F under an empty skip state 22 And F 21 Auxiliary skip F 32 And F 31 Is the difference in tension of
F 23 ＝F 22 -F 21 ，F 33 ＝F 32 -F 3 。
Step S1-2: the loads of the main skip and the auxiliary skip are set to be F d The main skip and the auxiliary skip are loaded with the load F d 1/4 weight F a When the temperature of the water is higher than the set temperature,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe a21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe a31 ，
Lifting the main skip into the main bend to completely open the gate of the main skip, and obtaining the tension F of the lifting steel wire rope through the tension sensing probe a22 ，
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe a32 ，
Recording a main skip F under an empty skip state a22 And F a21 Auxiliary skip F a32 And F a31 Is the tension difference of
F a23 ＝F a22 -F a21 ，F a33 ＝F a32 -F a31 。
Step S1-3: the load of the main skip and the auxiliary skip is set to be F d The main skip and the auxiliary skip are loaded with the load F d 1/2 weight F b When the temperature of the water is higher than the set temperature,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe b21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe b31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe b22 ；
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe b32 ，
Recording a main skip F under an empty skip state b22 And F b21 Auxiliary skip F b32 And F b31 Is the difference in tension of
F b23 ＝F b22 -F b21 ，F b33 ＝F b32 -F b31 。
Step S1-4: the load of the main skip and the auxiliary skip is set to be F d The main skip and the auxiliary skip are loaded with the load F d 3/4 weight F c When the temperature of the water is higher than the set temperature,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe c21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe c31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe c22 ，
The auxiliary skip is lifted into the auxiliary bend, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe c32 ，
Recording a main skip F under an empty skip state c22 And F c21 Auxiliary skip F c32 And F c31 Is the difference in tension of
F c23 ＝F c22 -F c21 ，F c33 ＝F c32 -F c31 。
Step S1-5: the load of the main skip and the auxiliary skip is set to be F d The main skip and the auxiliary skip are loaded with the load F d When the utility model is used, the water is discharged,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe d21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe d31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe d22 ，
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe d32 ，
Recording a main skip F under an empty skip state d22 And F d21 Auxiliary skip F d32 And F d31 Is the difference in tension of
F d23 ＝F d22- F d21 ，F d33 ＝F d32 -F d31 。
The specific steps of obtaining load-bend resistance fitting by adopting a data fitting method based on deep learning according to the obtained actual tension and tension difference are as follows,
step S2-1: obtaining an estimated relation between the load and the resistance as an initial parameter of the deep learning network through theoretical simulation and empirical analysis;
step S2-2: carrying out data cleaning on the acquired load and the bend resistance data obtained by calculation, and eliminating obviously distorted data to obtain a training set of a load-bend resistance deep learning network model;
step S2-3: dividing the data set into a training set and a testing set, training the network model to obtain the mapping relation between the load and the bend resistance, and when the model error is less than a specified value epsilon, considering that the expression of the load and the bend resistance is obtained
wherein ,
is a velocity V 1 Lower load M c The resistance of the curved rail obtained in the process,
f is the activation function for the parameters of the resulting mapping model.
The above-described embodiment is a process of obtaining the bend resistance by the tension of the wire rope at different speeds and different hoisting distances obtained by the tension sensing probe. And then, obtaining the unloading residues in different stages through the tensions obtained by the tension sensing probe in the steps S5 and S6, wherein when the unloading residues are obtained, the tensions related to the unloading residues in different stages are different, especially the tension measured by the main skip or the auxiliary skip in the winch room at the top of the shaft can be generally used for obtaining the unloading residues in the stage of continuing to move downwards until the constant speed.
When the tension of the hoisting steel wire rope is calculated by adopting the tension at the roller of the hoisting machine, the tension of the hoisting distance of the empty main skip and the empty auxiliary skip at any moment is
In formula (3), H is the lifting height from the loading position to the unloading position of the main skip or the auxiliary skip, x is the lowering distance through the main bend or the auxiliary bend after the main skip or the auxiliary skip is unloaded, and M k Is the dead weight of the main or auxiliary skip and its suspension device, M t Is the dead weight of the tail rope, M h To lift the dead weight of the wire rope, F 1 The tension of the steel wire rope is used for lifting the empty main skip and the empty auxiliary skip to the middle position of a shaft, and the main skip and the auxiliary skip are both in the same horizontal position.
When the tension of the hoisting steel wire rope is calculated by adopting the tension of the main skip or the auxiliary skip, the tension of the hoisting steel wire rope is
F h (x)＝M k (4)
In the formula (4), M k The main skip or the auxiliary skip and the hanging device thereof have dead weight.
Example 2
The utility model provides a preliminary warning system is remained in unloading of vertical skip based on tensile of wire rope, hoisting system adopt well tower formula friction hoisting system equally, as shown in fig. 3, on embodiment 1's basis, change tension perception probe into and lay in the top of main skip, the top of vice skip and connect hoisting rope department, measure the tension that the steel wire was located to it receives measuring signal and transmits to the arithmetic control system to arrange the receiver at the well head. The tension sensing probes are communicated with an operation control system, and the operation control system is communicated with the early warning device at the same time.
Then according to the method for identifying the unloading residue of the vertical skip based on the tension of the steel wire rope, as shown in fig. 1, the tension of the hoisting steel wire rope of the skip under different conditions is obtained through the tension sensing probe, the bend resistance can be calculated through different tensions, the unloading residue at different stages is obtained, finally, the influence of the bend resistance on the unloading residue detection result can be avoided through the comprehensive consideration of the bend resistance, a matched early warning mechanism is established through the fusion of the unloading residues at different stages, an operator can conveniently adjust the early warning system in time, and the accurate comprehensiveness of the detection is further ensured. The specific procedure was the same as in example 1.
Example 3
The utility model provides a residual early warning system is unloaded to vertical skip based on wire rope tension, hoisting system adopts console mode friction hoisting system, as shown in fig. 4, including tension perception probe, main skip, vice skip and lifting machine cylinder, the leading wheel, promote wire rope etc, the uninstallation position department at main skip sets up the main bend, the uninstallation position department of vice skip sets up the vice bend, the gate of main skip makes its removal uninstallation in the main bend through lifting machine cylinder drive hoisting wire rope, the gate of vice skip removes the uninstallation through lifting machine cylinder drive hoisting wire rope in the vice bend.
Arranging a tension sensing probe on the side edge of the lifting roller, facing an upper chord rope and a lower chord rope connected with the roller, and detecting the tension of the steel wire rope at the position; the tension sensing probes are communicated with an operation control system, and the operation control system is communicated with the early warning device at the same time.
Then according to the method for identifying the unloading residue of the vertical skip based on the tension of the steel wire rope, as shown in fig. 1, the tension of the hoisting steel wire rope of the skip under different conditions is obtained through the tension sensing probe, the bend resistance can be calculated through different tensions, the unloading residue at different stages is obtained, finally, the influence of the bend resistance on the unloading residue detection result can be avoided through the comprehensive consideration of the bend resistance, a matched early warning mechanism is established through the fusion of the unloading residues at different stages, an operator can conveniently adjust the early warning system in time, and the accurate comprehensiveness of the detection is further ensured. The specific procedure was the same as in example 1.
Example 4
According to the steel wire rope tension-based vertical skip unloading residual early warning system, the lifting system also adopts a floor type friction lifting system, as shown in fig. 5, on the basis of the embodiment 3, a tension sensing probe is changed to be arranged above the main skip and above the auxiliary skip to be connected with a lifting rope, the tension of a steel wire at the position is measured, and a receiver is arranged at a wellhead to receive a measuring signal and transmit the measuring signal to an operation control system. The tension sensing probes are communicated with an operation control system, and the operation control system is communicated with the early warning device at the same time.
Then according to the method for identifying the unloading residue of the vertical skip based on the tension of the steel wire rope, as shown in fig. 1, the tension of the hoisting steel wire rope of the skip under different conditions is obtained through the tension sensing probe, the bend resistance can be calculated through different tensions, the unloading residue at different stages is obtained, finally, the influence of the bend resistance on the unloading residue detection result can be avoided through the comprehensive consideration of the bend resistance, a matched early warning mechanism is established through the fusion of the unloading residues at different stages, an operator can conveniently adjust the early warning system in time, and the accurate comprehensiveness of the detection is further ensured. The specific procedure was the same as in example 1.
Example 5
The utility model provides a warning system is remained in unloading of vertical skip based on tensile of wire rope, hoisting system adopts wound form hoisting system, as shown in fig. 6, including tension perception probe, the main skip, vice skip and lifting machine cylinder, the leading wheel, hoisting wire rope etc, the uninstallation position department at the main skip sets up the main bend, the uninstallation position department of vice skip sets up the vice bend, the gate of main skip makes its removal uninstallation in the main bend through lifting machine cylinder drive hoisting wire rope, the gate of vice skip removes uninstallation in the vice bend through lifting machine cylinder drive hoisting wire rope.
Arranging a tension sensing probe on the side edge of the lifting roller, facing an upper chord rope and a lower chord rope connected with the roller, and detecting the tension of the steel wire rope at the position; the tension sensing probes are communicated with an operation control system, and the operation control system is communicated with the early warning device at the same time.
Then according to the method for identifying the unloading residue of the vertical skip based on the tension of the steel wire rope, as shown in fig. 1, the tension of the hoisting steel wire rope of the skip under different conditions is obtained through the tension sensing probe, the bend resistance can be calculated through different tensions, the unloading residue at different stages is obtained, finally, the influence of the bend resistance on the unloading residue detection result can be avoided through the comprehensive consideration of the bend resistance, a matched early warning mechanism is established through the fusion of the unloading residues at different stages, an operator can conveniently adjust the early warning system in time, and the accurate comprehensiveness of the detection is further ensured. The specific procedure was the same as in example 1.
Example 6
The vertical skip unloading residual early warning system based on the tension of the steel wire rope is characterized in that the hoisting system also adopts a winding type hoisting system, as shown in fig. 7, on the basis of the embodiment 5, a tension sensing probe is changed to be arranged above a main skip and above an auxiliary skip to be connected with a hoisting rope, the tension of the steel wire at the position is measured, and a receiver is arranged at a wellhead to receive a measuring signal and transmit the measuring signal to an operation control system. The tension sensing probes are communicated with an operation control system, and the operation control system is communicated with the early warning device at the same time.
Then according to the method for identifying the unloading residue of the vertical skip based on the tension of the steel wire rope, as shown in fig. 1, the tension of the hoisting steel wire rope of the skip under different conditions is obtained through the tension sensing probe, the bend resistance can be calculated through different tensions, the unloading residue at different stages is obtained, finally, the influence of the bend resistance on the unloading residue detection result can be avoided through the comprehensive consideration of the bend resistance, a matched early warning mechanism is established through the fusion of the unloading residues at different stages, an operator can conveniently adjust the early warning system in time, and the accurate comprehensiveness of the detection is further ensured. The specific procedure was the same as in example 1.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. A residual early warning system for unloading of a vertical skip based on tension of a steel wire rope is characterized in that a lifting system comprises a tension sensing probe, a main skip, an auxiliary skip, a lifting roller, a guide wheel, a lifting steel wire rope and the like, a main bend is arranged at an unloading position of the main skip, an auxiliary bend is arranged at an unloading position of the auxiliary skip, a gate of the main skip drives the lifting steel wire rope to move in the main bend for unloading through the lifting roller, and a gate of the auxiliary skip drives the lifting steel wire rope to move in the auxiliary bend for unloading through the lifting roller; the method is characterized in that:
tension sensing probes are distributed above the main skip and the auxiliary skip, and receivers are arranged at a wellhead to receive and transmit detection signals; or the tension sensing probes are distributed on the two side edges of the hoister roller and the steel wire ropes which are connected with the skips on the two sides of the hoister roller;
the tension sensing probes are communicated with an operation control system, and the operation control system is communicated with the early warning device at the same time.
2. The steel wire rope tension-based vertical skip unloading residual early warning system according to claim 1, characterized in that: the lifting system adopts a derrick type friction lifting system or a floor type friction lifting system or a winding type lifting system;
in the well tower type friction lifting system, tension sensing probes are distributed above a main skip and an auxiliary skip, and a receiver is arranged at a well mouth; or the tension sensing probes are distributed on two side edges below the hoister roller;
in the floor type friction lifting system, tension sensing probes are distributed above a main skip and an auxiliary skip, and receivers are arranged at a well mouth; or tension sensing probes are distributed on the side edges of the hoister rollers facing the positions of the upper chord rope and the lower chord rope;
in the winding type lifting system, tension sensing probes are arranged above a main skip and an auxiliary skip, and a receiver is arranged at a wellhead; or tension sensing probes are arranged at the positions of the side edge of the hoister roller facing the upper chord rope and the lower chord rope.
3. A method for identifying unloading residue of a vertical skip based on tension of a steel wire rope is characterized by comprising the following steps: the method specifically comprises the following steps:
step S1: recording the tension of all steel wire ropes concentrated on the skip bucket at different lifting distances at different speeds, specifically, lifting the empty main skip bucket and the empty auxiliary skip bucket to the middle position of a shaft, wherein the main skip bucket and the auxiliary skip bucket are both at the same horizontal position, and defining the acquired tension of the steel wire ropes as F 1 When the main skip and the auxiliary skip which are not placed are put down to leave the bend, the tension of the hoisting steel wire rope is F 4 ；
Setting the running speeds V of n entering curved tracks n At a velocity of V 1 ～V n N is 2-6, and V is measured respectively in the main skip and the auxiliary skip under different loading conditions 1 ～V n The tension of the steel wire rope before and after entering the bend, and calculating and recording the tension difference;
step S2: determining the velocity V 1 The lower bend resistance is subjected to a data fitting method based on deep learning to obtain a speed V 1 Associated expression of tension difference between lower main skip and auxiliary skip after entering bend and before bend with respect to load
wherein ,
to be fastDegree V 1 Lower load M c The resistance of the curved track obtained in the process,
f is an activation function for the obtained parameters of the mapping model;
step S3: the velocity V is determined from formula (1) in step S2 2 ～V n The associated expression of the tension difference of the lower main skip and the auxiliary skip after entering the bend and before the bend with respect to the load is obtained, namely the speed V is obtained 2 ～V n The resistance of the lower bend, in particular,
V 2 the expression at speed is:
V 3 the expression at speed is:
V 4 the expression at speed is:
V n the expression at speed is:
step S4: obtaining the velocity V by adopting a data fitting method based on deep learning 1 ～V n In the time, expressions of tension difference after the main skip and the auxiliary skip with different loads enter the bend and before the bend on the basis of load and speed
F μ (V n ,M c )＝Z{w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 }[V n ,M c ] (2)
wherein ,Fμ (V n ,M c ) Is a velocity V n Lower load M c The resulting bending resistance, V n The running speed of the main skip and the auxiliary skip entering the bend, M c Is the loading weight when the main skip and the auxiliary skip enter the bend, Z { w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 The obtained skip after entering the bend and before the bend is subjected to the training, and the obtained mapping model of the tension difference, the load and the speed;
step S5: acquiring the bend resistance F of the skip during a certain lifting process in actual operation according to the formula (2) in the step S4 μe ＝Z{w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 }[V e ,M e], wherein Ve Is the speed of the skip when entering the bend during operation, M e Loading weight for the skip when working;
step S6: when the skip is lifted at a certain time in actual operation, the tension F before the main skip and the auxiliary skip enter the bend is measured e1 Tension F after unloading of the main skip and the auxiliary skip after entering the bend e2 After the main skip and the auxiliary skip are unloaded, the main skip and the auxiliary skip are continuously lowered to the tension F after leaving the bend e3 ；
Step S7: calculating unloading residue of the skip at the stop operation stage, namely M r1 ＝F e2 -F e1 -F μe, wherein ,Fμe ＝Z{w m1 ,w v1 ,b 1 ,w m2 ,w v2 ,b 2 }[V e ,M e ]；
Step S8: calculating unloading residue at the initial lower stage of the skip, namely M r2 ＝F e3 -F 4, wherein ,F4 The tension of the steel wire rope is lifted when the main skip and the auxiliary skip which are empty are put down to leave the bend;
step S9: the skip continues to move downwards until the stage of constant speed operation, and the tension F of the skip at any moment in the constant speed process is obtained e4 Obtaining unloading residual M of the skip at any time in the constant-speed running stage r3 ＝F e4 -F h (x) In which F is h (x) The tension of the main skip and the auxiliary skip which are vacant at any time with respect to the lifting distance;
step S10: step S7, step S8 andand unloading residual M of the skip bucket in the stopping operation stage obtained in the step 9 r1 Unloading residue M at initial lower stage of skip r2 And unloading residue M in the constant speed operation stage r3 Obtaining fusion unloading residual M by Kalman data fusion method r ；
Step S11: unloading residual M based on skip stopping operation stage r1 Unloading residue M at initial lower stage of skip r2 Unloading residue M in uniform speed operation stage r3 And fusing the uninstall residual M r And respectively establishing a 3-level early warning mechanism for early warning.
4. The method for identifying residual unloading of the vertical skip based on the tension of the steel wire rope according to claim 3, wherein:
step S1 is to measure V of the main skip and the auxiliary skip under different loading conditions during actual operation 1 -V n The method comprises the following steps of (1) measuring the tension of a steel wire rope before and after entering a bend, and calculating and recording the tension difference, wherein the method specifically comprises the following steps:
step S1-1: when the main skip and the auxiliary skip are in no-load,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe 21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe 31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe 22 ，
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe 32 ，
Recording the main skip F under the empty skip state 22 And F 21 Auxiliary skip F 32 And F 31 Is the difference in tension of
F 23 ＝F 22 -F 21 ，F 33 ＝F 32 -F 3 ；
Step S1-2: the loads of the main skip and the auxiliary skip are set to be F d The main skip and the auxiliary skip are loaded with the load F d 1/4 weight F a When the utility model is used, the water is discharged,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe a21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe a31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe a22 ，
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe a32 ，
Recording the main skip F under the empty skip state a22 And F a21 Auxiliary skip F a32 And F a31 Is the tension difference of
F a23 ＝F a22 -F a21 ，F a33 ＝F a32 -F a31 ；
Step S1-3: the loads of the main skip and the auxiliary skip are set to be F d The main skip and the auxiliary skip are loaded with the load F d 1/2 weight F b When the utility model is used, the water is discharged,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe b21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe b31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe b22 ；
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened and communicatedThe tension F of the hoisting steel wire rope is obtained by the over-tension sensing probe b32 ，
Recording a main skip F under an empty skip state b22 And F b21 Auxiliary skip F b32 And F b31 Is the tension difference of
F b23 ＝F b22 -F b21 ，F b33 ＝F b32 -F b31 ；
Step S1-4: the load of the main skip and the auxiliary skip is set to be F d The main skip and the auxiliary skip are loaded with the load F d 3/4 weight F c When the temperature of the water is higher than the set temperature,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe c21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe c31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe c22 ，
The auxiliary skip is lifted into the auxiliary bend rail, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe c32 ，
Recording a main skip F under an empty skip state c22 And F c21 Auxiliary skip F c32 And F c31 Is the difference in tension of
F c23 ＝F c22 -F c21 ，F c33 ＝F c32 -F c31 ；
Step S1-5: the loads of the main skip and the auxiliary skip are set to be F d The main skip and the auxiliary skip are loaded with the load F d When the temperature of the water is higher than the set temperature,
the main skip is lifted to the position before the main skip enters the bend rail, and the tension F of the hoisting steel wire rope is obtained through a tension sensing probe d21 ，
The auxiliary skip is lifted to the position before the auxiliary skip is about to enter the bend of the auxiliary skip, and the tension of the hoisting steel wire rope is obtained through a tension sensing probeForce F d31 ，
Lifting the main skip into the main bend, so that the gate of the main skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe d22 ，
The auxiliary skip is lifted into the auxiliary bend, so that the gate of the auxiliary skip is completely opened, and the tension F of the hoisting steel wire rope is obtained through the tension sensing probe d32 ，
Recording a main skip F under an empty skip state d22 And F d21 Auxiliary skip F d32 And F d31 Is the difference in tension of
F d23 ＝F d22 -F d21 ，F d33 ＝F d32 -F d31 。
5. The method for identifying residual unloading of the vertical skip based on the tension of the steel wire rope according to claim 4, wherein: in step S2, the specific steps of obtaining the load-bend resistance fit by the data fitting method based on the deep learning according to the actual tension and tension difference obtained in claim 3 are,
step S2-1: obtaining an estimated relation between load and resistance as an initial parameter of a deep learning network through theoretical simulation and empirical analysis;
step S2-2: carrying out data cleaning on the acquired load and the bend resistance data obtained by calculation, and removing obviously distorted data to obtain a training set of a load-bend resistance deep learning network model;
step S2-3: and dividing the data set into a training set and a testing set, training the network model to obtain a mapping relation between the load and the bend resistance, and when the model error is smaller than a specified value epsilon, considering that an expression (1) of the load and the bend resistance is obtained.
6. The method for identifying residual unloading of the vertical skip based on the tension of the steel wire rope according to claim 5, wherein:
the tension of the hoisting steel wire rope can be obtained by adopting the tension of a roller of a hoisting machine in a winch room at the top of the shaft or the tension measured by adopting a main skip or an auxiliary skip.
7. The method for identifying residual unloading of the vertical skip based on the tension of the steel wire rope according to claim 6, wherein:
when the tension of the hoisting steel wire rope is calculated by adopting the tension at the roller of the hoisting machine, the tension of the hoisting distance of the empty main skip and the empty auxiliary skip at any moment is
In formula (3), H is the lifting height from the loading position to the unloading position of the main skip or the auxiliary skip, x is the lowering distance through the main bend or the auxiliary bend after the main skip or the auxiliary skip is unloaded, and M k Is the dead weight of the main or auxiliary skip and its suspension device, M t Is the dead weight of the tail rope, M h To lift the dead weight of the wire rope, F 1 The tension of the steel wire rope is used for lifting the empty main skip and the empty auxiliary skip to the middle position of a shaft, and the main skip and the auxiliary skip are both in the same horizontal position.
8. The method for identifying residual unloading of the vertical skip based on the tension of the steel wire rope according to claim 6, wherein: when the tension of the hoisting steel wire rope is calculated by adopting the tension of the main skip or the auxiliary skip, the tension of the hoisting steel wire rope is
F h (x)＝M k (4)
In the formula (4), M k The main skip or the auxiliary skip and the hanging device thereof have dead weight.
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| WO2024056930A1 (en) * | 2022-09-12 | 2024-03-21 | Kone Corporation | A method, an elevator computing unit, and a load estimation system for producing load data of an elevator car of an elevator system |
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