AU2016412018A1 - Monitoring apparatus and method for dynamic contact state of multi-layer wound wire rope and drum in ultra-deep well - Google Patents
Monitoring apparatus and method for dynamic contact state of multi-layer wound wire rope and drum in ultra-deep well Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 41
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000004088 simulation Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 43
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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Abstract
A monitoring apparatus and method for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well, the monitoring apparatus comprising a support system, a winding system, a dynamic loading monitoring system, and a stress monitoring system. The winding system comprises an electric motor (10), the electric motor being connected with a main shaft (18) through a speed reducer (12), the main shaft (18) having a flange plate arranged thereon, the flange plate fixed with a double-fold-line drum (16) being sleeved on the main shaft (18), friction discs (15, 17) being fixed at two sides of the double-fold-line drum (16), disc brakes (2, 3, 20, 21) being fixed at one side of the friction discs (15, 17), and at least two layers of a wire rope (4) being wound on a rope groove of the double-fold-line drum (16); the dynamic loading monitoring system comprises a servo electric cylinder (8), a threaded rod of the servo electric cylinder (8) being connected with a wire rope clamp (6) via a S-shaped tension sensor (7), and one end of the wire rope (4) passing through the wire rope clamp (6) and being locked; and the rope groove and a baffle of the double-fold-line drum (16) are provided with U-shaped through grooves (22, 24, 26, 28, 30, 32, 34), strain gages (23, 25, 27, 29, 31, 33, 35) being adhered on inner walls of the U-shaped through grooves (22, 24, 26, 28, 30, 32, 34). The apparatus can monitor the dynamic contact stress of a wire rope on the surface of the double-fold-line drum and on the baffle of the drum in real time.
Description
MONITORING APPARATUS AND METHOD FOR DYNAMIC CONTACT STATE OF MULTI-LAYER WOUND WIRE ROPE AND DRUM IN ULTRA-DEEP WELL
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to a monitoring apparatus and method for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well, so as to research, for a double-fold-line multi-layer wound wire rope and a drum in a winding hoist for an ultra-deep well, a dynamic contact stress of the wire rope on the surface of the double-fold-line drum and on a baffle of the drum in a dynamic load hoisting process of the wire rope.
Description of Related Art A mine hoist, as necessary conveying equipment in a mine shaft, is in charge of raising minerals and lifting/lowering personnel, devices, and materials in a production process; and is an important link for connecting the ground and the downhole. Coal resources kilometers under the ground in China account for 53% of proven coal reserves. Therefore, the mining and conveyance for an ultra-deep well gain wide attention. Hoisting in an ultra-deep well is generally implemented using a vertical-shaft multi-rope friction hoisting system and a winding hoisting system. However, according to related standards, existing multi-rope friction hoists in China are not recommended for use in a mine shaft of more than 1200 meters deep. The winding hoisting system uses a single-layer winding manner, and enhances the capacity of a wire rope on a drum by increasing the diameter and the length of the drum. The effect is limited. In order to significantly enhance the capacity of the wire rope on the drum, the wire rope needs to be wound in multiple layers. In a multi-rope winding hoisting system, Coal Mine Safety Regulation in China stipulates that the number of layers of a wire rope wound about a drum is two during material lifting/lowering in a vertical shaft, while Ontario Occupational Health and Safety Act in Canada stipulates that there are at most three layers of a wire rope wound about a drum of a hoist when the drum is provided with a spiral rope groove. Main parts of a winding hoist include a main shaft, a drum (a smooth-surface wire rope drum, a spiral-line wire rope drum, or a double-fold-line wire rope drum), a wire rope, a hoisting container, a head sheave, and a brake. One end of the wire rope is fixed with and wound about the hoisting drum, and the other end passes over the head sheave to suspend the hoisting container. The wire rope is wound or released by rotating the drum in a clockwise or counterclockwise direction, to lift/lower the hoisting container. Compared with drums of other types, the double-fold-line wire rope drum (a rope groove of the double-fold-line drum is formed by alternately interconnecting two straight-line sections vertical to the axis of the drum and two broken-line sections at an angle to the axis of the drum) in the multi-layer winding solution can not only reduce the size of space occupied by a hoisting mechanism, but also significantly prolong the service life of the wire rope. Therefore, as a key part for load bearing and power transmission of a hoist, the double-fold-line drum of the winding hoist will cause severe economic loss and casualties in the event of a fracture failure.
In a hoisting process of the winding hoist in a mine shaft, the hoisting wire rope wound about the drum repeatedly lifts and lowers the hoisting container. As the hoist speeds up, moves at a constant speed, or slows down and the length of the hanging wire rope varies with time, the hoisting system in the vertical shaft vibrates horizontally and vertically in a coupled maimer, thus causing a dynamic load on the hoisting wire rope. As a result, a dynamic contact stress is produced between the first-layer wound wire rope on the double-fold-line drum and the surface of the double-fold-line drum, and between ascending sections of the wire rope in different winding layers and a baffle of the double-fold-line drum. When the wire rope is wound about the double-fold-line drum in multiple layers, a radial pressure produced in a winding process of the first-layer wound wire rope on the surface of the double-fold-line drum and an axial thrust produced by the ascending sections of the wire rope in different winding layers on the baffle of the double-fold-line drum may cause fatigue damages such as deformation, cracking, or even fracture of the double-fold-line drum and the baffle of the drum, thus further affecting the service life of the hoist and even causing an accident. Therefore, a monitoring apparatus and method for dynamic contact state of a double-fold-line multi-layer wound wire rope and a drum in a winding hoist for an ultra-deep well are provided, so as to research a dynamic contact stress of the first-layer wound wire rope on the surface of the double-fold-line drum and a dynamic contact stress of ascending sections of the wire rope in different winding layers on a baffle of the double-fold-line dram in a winding hoisting process in the ultra-deep well. The apparatus and the method further provide important theoretical guidance to a failure mechanism of the fatigue damages of the double-fold-line drum and to prediction of its service life.
Experimental apparatuses related to a drum of a hoist are as follows: Patent No. CN201310398365.X discloses a hydraulic loading simulation test apparatus for a mine hoist, where a dram of a tested hoist in a main hoisting mechanism of the hoist is connected with a wire rope wound about an accompanying drum in a hydraulic loading simulation test mechanism of the hoist via a wire rope wound about the drum of the tested hoist, to provide the tested hoist with a continuous load and driving torque conforming to the actual working conditions. Patent No. CN201410528414.1 discloses a hoisting system test bed and test method in an ultra-deep well, where important parameters such as the tension of a wire rope of the hoisting system, a pressure on a dram, and coordinates of a position of a hoisting container are detected. Patent No. CN201520661617.8 discloses a stress test apparatus for a dram, where a driving assembly and a loading assembly are used as general-purpose parts by using a set of driving devices, to test stresses of different drums. However, none of the foregoing patents considers a dynamic contact stress of a multi-layer wound wire rope on a drum and on a baffle of the drum under a dynamic load of the wire rope.
SUMMARY OF THE INVENTION
Objective of the Invention: To overcome the defects of devices and technologies in the prior art, the present invention provides a monitoring apparatus and method for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well, so as to research, for a double-fold-line multi-layer wound wire rope and a drum in a winding hoist for an ultra-deep well, a dynamic contact stress of the wire rope on the surface of the double-fold-line drum and on a baffle of the drum in a dynamic load hoisting process of the wire rope.
To achieve the foregoing objective, the present invention adopts the following technical solution: A monitoring apparatus for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well includes a support system, a winding system, a dynamic loading monitoring system, and a stress monitoring system.
The support system includes a bottom plate and a servo electric cylinder pedestal, the servo electric cylinder pedestal being fixed on the bottom plate.
The winding system includes: an electric motor, a high-speed coupler, a speed reducer, a low-speed coupler, a bearing pedestal A, a friction disc A, a disc brake A, a disc brake B, a main shaft, a double-fold-line drum, a friction disc B, a disc brake C, a disc brake D, a bearing pedestal B, and a wire rope, the electric motor being fixed on the bottom plate, an output shaft of the electric motor being connected to an input end of the speed reducer by using the high-speed coupler, an output end of the speed reducer being connected to one end of the main shaft by using the low-speed coupler, two ends of the main shaft being mounted inside the bearing pedestal A and the bearing pedestal B through bearings respectively, the bearing pedestal A and the bearing pedestal B being fixed on the bottom plate by using a bearing pedestal support, two flange plates being provided on the main shaft, the two flange plates being fixed with the double-fold-line drum sleeved on the main shaft, the friction disc A and the friction disc B being fixed at two sides of the double-fold-line drum, the disc brake A and the disc brake B being fixed on the bottom plate at the side of the friction disc A, the disc brake C and the disc brake D being fixed on the bottom plate at the side of the friction disc B, the wire rope being wound on a rope groove of the double-fold-line drum, and the wire rope being wound in at least two layers.
The dynamic loading monitoring system includes: a servo electric cylinder, an S-shaped tension sensor, a wire rope clamp, and a wire rope U-shaped lock, the servo electric cylinder being fixed on the servo electric cylinder pedestal, a threaded rod of the servo electric cylinder being connected to one end of the S-shaped tension sensor, the other end of the S-shaped tension sensor being connected to the wire rope clamp, and one end of the wire rope passing through the wire rope clamp and being locked by using the wire rope U-shaped lock.
The stress monitoring system includes: a strain gage group A, a strain gage group B, a strain gage group C, a strain gage group D, and baffle-side strain gages, a U-shaped through groove B and a U-shaped through groove D being respectively opened on two straight-line sections of the rope groove of the double-fold-line drum, a U-shaped through groove A and a U-shaped through groove C being respectively opened on two broken-line sections of the rope groove of the double-fold-line drum, baffle-side U-shaped through grooves being opened on the baffle of the double-fold-line drum, the strain gage group A being adhered on an inner wall of the U-shaped through groove A, the strain gage group B being adhered on an inner wall of the U-shaped through groove B, the strain gage group C being adhered on an inner wall of the U-shaped through groove C, the strain gage group D being adhered on an inner wall of the U-shaped through groove D, the baffle-side strain gages being adhered on inner walls of the baffle-side U-shaped through grooves respectively, the number of the baffle-side strain gages being the same as the number of winding layers of the wire rope, and each baffle-side strain gage being corresponding to one layer of the wire rope.
Further, the U-shaped through groove A, the U-shaped through groove B, the U-shaped through groove C, and the U-shaped through groove D are all parallel to the axis of the double-fold-line drum. A monitoring method for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well according to the monitoring apparatus described above includes the following steps: a) adhering all the strain gage groups on the inner walls of the corresponding U-shaped through grooves, and adhering the baffle-side strain gages on the inner walls of the baffle-side U-shaped through grooves respectively; b) selecting the wire rope of appropriate length, and making one end of the wire rope pass through the wire rope clamp and locked by using the wire rope U-shaped lock; c) turning on the electric motor by using a controller, winding the wire rope on the double-fold-line drum, turning off the electric motor when the wire rope is wound in a required number of layers, using the disc brakes to act on the friction discs to brake the double-fold-line drum, and controlling, by using a computer, the servo electric cylinder to horizontally move, so that the wire rope reaches a set fatigue load or a deformation value under stress; d) setting an alternating displacement amplitude value of the servo electric cylinder 9 by using a computer control program, to obtain a dynamic alternating load of the wire rope; simulating a dynamic stress of the wire rope on the surface of the double-fold-line drum and on the baffle thereof in a dynamic load hoisting process of the wire rope; during simulation of the dynamic stress of the wire rope on the surface of the double-fold-line drum and on the baffle thereof in the dynamic load hoisting process of the wire rope, turning on a power supply to supply power to the electric motor, the servo electric cylinder, the S-shaped tension sensor, the strain gage group A, the strain gage group B, the strain gage group C, the strain gage group D, and the baffle-side strain gages; recording the change of the dynamic load on the wire rope by using the S-shaped tension sensor; recording the dynamic stress of the wire rope on the surface of the double-fold-line drum by using the strain gage groups; and recording the dynamic stress of different layers of the wire rope on the baffle of the double-fold-line drum by using the baffle-side strain gages; and e) by changing the number of winding layers of the wire rope and the alternating displacement amplitude value of the servo electric cylinder, simulating a dynamic contact stress of the wire rope on the surface of the double-fold-line drum and on the baffle thereof in the case of different winding layers and different dynamic loads.
Beneficial effects: For a winding hoist in an ultra-deep well, under working conditions in which a wire rope bears a dynamic load and winding layers on a double-fold-line drum are changed, the present invention can dynamically monitor a parameter evolution rule of a dynamic contact stress of the first-layer wound wire rope on the surface of the double-fold-line drum and a dynamic contact stress of different layers of the wound wire rope on a baffle of the double-fold-line drum, to provide an effective experimental device and basis for researches on fatigue damages to the double-fold-line multi-layer wound wire rope and drum in the winding hoist for an ultra-deep well under different hoisting working conditions. Therefore, the present invention can be widely applied in predicating the service life of the double-fold-line multi-layer wound wire rope and drum in the winding hoist for an ultra-deep well, and provide important guidance for operation safety of the winding hoist in an ultra-deep well.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of the structure of the present invention patent; FIG. 2 is a view in an A-A direction in FIG. 1; FIG. 3 is a view in a B-B direction in FIG. 1; FIG. 4 is a front view of a double-fold-line drum; FIG. 5 is a partial enlarged diagram of a part IV marked in FIG. 4; FIG. 6 is an expanded view of the double-fold-line drum; FIG. 7 is a view in a C direction in FIG. 4; FIG. 8 is a partial enlarged diagram of a part I marked in FIG. 7; FIG. 9 is a partial enlarged diagram of a part III marked in FIG. 7; FIG. 10 is a view in a D direction in FIG. 4; and FIG. 11 is a partial enlarged diagram of a part II marked in FIG. 10.
In the accompanying drawings: 1. bottom plate; 2. disc brake D; 3. disc brake C; 4. wire rope; 5. wire rope U-shaped lock; 6. wire rope clamp; 7. S-shaped tension sensor; 8. servo electric cylinder; 9. servo electric cylinder pedestal; 10. electric motor; 11. high-speed coupler; 12. speed reducer; 13. low-speed coupler; 14. bearing pedestal A; 15. friction disc A; 16. double-fold-line drum; 17. friction disc B; 18. main shaft; 19. bearing pedestal B; 20. disc brake A; 21. disc brake B; 22. U-shaped through groove A; 23. strain gage group A; 24. U-shaped through groove B; 25. strain gage group B; 26. U-shaped through groove C; 27. strain gage group C; 28. U-shaped through groove D; 29. strain gage group D; 30. U-shaped through groove E; 31. strain gage E; 32. U-shaped through groove F; 33. strain gage F; 34. U-shaped through groove G; and 35. strain gage G.
DETAILED DESCRIPTION OF EMBODIMENTS
The present invention is further explained below with reference to the accompanying drawings.
As shown in FIG. 1 to FIG. 11, a monitoring apparatus for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well includes: a support system, a winding system, a dynamic loading monitoring system, and a stress monitoring system.
The support system includes a bottom plate 1 and a servo electric cylinder pedestal 9, the servo electric cylinder pedestal 9 being fixed on the bottom plate 1.
The winding system includes: an electric motor 10, a high-speed coupler 11, a speed reducer 12, a low-speed coupler 13, a bearing pedestal A 14, a friction disc A 15, a disc brake A 20, a disc brake B 21, a main shaft 18, a double-fold-line drum 16, a friction disc B 17, a disc brake C 3, a disc brake D 2, a bearing pedestal B 19, and a wire rope 4. The electric motor 10 is fixed on the bottom plate 1, an output shaft of the electric motor 10 is connected to an input end of the speed reducer 12 by using the high-speed coupler 11, an output end of the speed reducer 12 is connected to one end of the main shaft 18 by using the low-speed coupler 13, two ends of the main shaft 18 are mounted inside the bearing pedestal A 14 and the bearing pedestal B 19 through bearings respectively, the bearing pedestal A 14 and the bearing pedestal B 19 are fixed on the bottom plate 1 by using a bearing pedestal support, two flange plates are provided on the main shaft 18, the two flange plates are fixed with the double-fold-line drum 16 sleeved on the main shaft 18 by using high-strength bolts, the friction disc A 15 and the friction disc B 17 are fixed at two sides of the double-fold-line drum 16 by using high-strength bolts, the disc brake A 20 and the disc brake B 21 are fixed on the bottom plate 1 at the side of the friction disc A 15, and the disc brake C 3 and the disc brake D 2 are fixed on the bottom plate 1 at the side of the friction disc B 17. The wire rope 4 is wound on a rope groove of the double-fold-line drum 16, the wire rope 4 being wound in at least two layers.
The dynamic loading monitoring system includes: a servo electric cylinder 8, an S-shaped tension sensor 7, a wire rope clamp 6, and a wire rope U-shaped lock 5. The servo electric cylinder 8 is fixed on the servo electric cylinder pedestal 9, a threaded rod of the servo electric cylinder 8 is connected to one end of the S-shaped tension sensor 7, the other end of the S-shaped tension sensor 7 is connected to the wire rope clamp 6, and one end of the wire rope 4 passes through the wire rope clamp 6 and is locked by using the wire rope U-shaped lock 5.
The stress monitoring system includes: a strain gage group A 23, a strain gage group B 25, a strain gage group C 27, a strain gage group D 29, and baffle-side strain gages. A U-shaped through groove B 24 and a U-shaped through groove D 28 are respectively opened on two straight-line sections of the rope groove of the double-fold-line drum 16, and a U-shaped through groove A 22 and a U-shaped through groove C 26 are respectively opened on two broken-line sections of the rope groove of the double-fold-line drum 16. The U-shaped through groove A 22, the U-shaped through groove B 24, the U-shaped through groove C 26, and the U-shaped through groove D 28 are all parallel to the axis of the double-fold-line drum 16. Baffle-side U-shaped through grooves are opened on a baffle of the double-fold-line drum 16. The strain gage group A 23 is adhered on an inner wall of the U-shaped through groove A 22, the strain gage group B 25 is adhered on an inner wall of the U-shaped through groove B 24, the strain gage group C 27 is adhered on an inner wall of the U-shaped through groove C 26, the strain gage group D 29 is adhered on an inner wall of the U-shaped through groove D 28, and the baffle-side strain gages are adhered on inner walls of the baffle-side U-shaped through grooves respectively. The number of the baffle-side strain gages is the same as the number of winding layers of the wire rope 4, and each baffle-side strain gage is corresponding to one layer of the wire rope.
In this embodiment, the wire rope 4 is wound in three layers. There are three baffle-side U-shaped through grooves, which are separately a U-shaped through groove E 30, a U-shaped through groove F 32, and a U-shaped through groove G 34. There are three baffle-side strain gages, which are separately a strain gage E 31 adhered on an inner wall of the U-shaped through groove E 30, a strain gage F 33 adhered on an inner wall of the U-shaped through groove F 32, and a strain gage G 35 adhered on an inner wall of the U-shaped through groove G 34. The strain gage E 31 is corresponding to the first layer of the wire rope, the strain gage F 33 is corresponding to the second layer of the wire rope, and the strain gage G 35 is corresponding to the third layer of the wire rope. A monitoring method for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well according to the monitoring apparatus described above includes the following steps: a) adhering all the strain gage groups on the inner walls of the corresponding U-shaped through grooves, and adhering the baffle-side strain gages on the inner walls of the baffle-side U-shaped through grooves respectively; b) selecting the wire rope 4 of appropriate length, and making one end of the wire rope 4 pass through the wire rope clamp 6 and locked by using the wire rope U-shaped lock 5; c) turning on the electric motor 10 by using a controller, winding the wire rope 4 on the double-fold-line drum 16, turning off the electric motor 10 when the wire rope is wound in a required number of layers, using the disc brakes to act on the friction discs to brake the double-fold-line drum 16, and controlling, by using a computer, the servo electric cylinder 9 to horizontally move, so that the wire rope 4 reaches a set fatigue load or a deformation value under stress; d) setting an alternating displacement amplitude value (that is, stretching displacement and frequency) of the servo electric cylinder 9 by using a computer control program, to obtain a dynamic alternating load of the wire rope 4; simulating a dynamic stress of the wire rope 4 on the surface of the double-fold-line drum 16 and on the baffle thereof in a dynamic load hoisting process of the wire rope; during simulation of the dynamic stress of the wire rope 4 on the surface of the double-fold-line drum 16 and on the baffle thereof in the dynamic load hoisting process of the wire rope, turning on a power supply to supply power to the electric motor 10, the servo electric cylinder 9, the S-shaped tension sensor 8, the strain gage group A 23, the strain gage group B 25, the strain gage group C 27, the strain gage group D 29, the strain gage E 31, the strain gage F 33, and the strain gage G 35; recording the change of the dynamic load on the wire rope 4 by using the S-shaped tension sensor 8; recording the dynamic stress of the wire rope 4 on the surface of the double-fold-line drum 16 by using the strain gage groups; and recording the dynamic stress of different layers of the wire rope 4 on the baffle of the double-fold-line drum 16 by using the baffle-side strain gages; and e) by changing the number of winding layers of the wire rope 4 and the alternating displacement amplitude value of the servo electric cylinder 9, simulating a dynamic contact stress of the wire rope 4 on the surface of the double-fold-line drum 16 and on the baffle thereof in the case of different winding layers and different dynamic loads.
The above merely describes preferred embodiments of the present invention. It should be noted that, persons of ordinary skill in the art can make several modifications and improvements without departing from the principle of the present invention. All these modifications and improvements shall fall within the protection scope of the present invention.
Claims (3)
1. A monitoring apparatus for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well, comprising: a support system, a winding system, a dynamic loading monitoring system, and a stress monitoring system, wherein the support system comprises a bottom plate (1) and a servo electric cylinder pedestal (9), the servo electric cylinder pedestal (9) being fixed on the bottom plate (1); the winding system comprises: an electric motor (10), a high-speed coupler (11), a speed reducer (12), a low-speed coupler (13), a bearing pedestal A (14), a friction disc A (15), a disc brake A (20), a disc brake B (21), a main shaft (18), a double-fold-line drum (16), a friction disc B (17), a disc brake C (3), a disc brake D (2), a bearing pedestal B (19), and a wire rope (4), the electric motor (10) being fixed on the bottom plate (1), an output shaft of the electric motor (10) being connected to an input end of the speed reducer (12) by using the high-speed coupler (11), an output end of the speed reducer (12) being connected to one end of the main shaft (18) by using the low-speed coupler (13), two ends of the main shaft (18) being mounted inside the bearing pedestal A (14) and the bearing pedestal B (19) through bearings respectively, the bearing pedestal A (14) and the bearing pedestal B (19) being fixed on the bottom plate (1) by using a bearing pedestal support, two flange plates being provided on the main shaft (18), the two flange plates being fixed with the double-fold-line drum (16) sleeved on the main shaft (18), the friction disc A (15) and the friction disc B (17) being fixed at two sides of the double-fold-line drum (16), the disc brake A (20) and the disc brake B (21) being fixed on the bottom plate (1) at the side of the friction disc A (15), the disc brake C (3) and the disc brake D (2) being fixed on the bottom plate (1) at the side of the friction disc B (17), the wire rope (4) being wound on a rope groove of the double-fold-line drum (16), and the wire rope (4) being wound in at least two layers; the dynamic loading monitoring system comprises: a servo electric cylinder (8), an S-shaped tension sensor (7), a wire rope clamp (6), and a wire rope U-shaped lock (5), the servo electric cylinder (8) being fixed on the servo electric cylinder pedestal (9), a threaded rod of the servo electric cylinder (8) being connected to one end of the S-shaped tension sensor (7), the other end of the S-shaped tension sensor (7) being connected to the wire rope clamp (6), and one end of the wire rope (4) passing through the wire rope clamp (6) and being locked by using the wire rope U-shaped lock (5); and the stress monitoring system comprises: a strain gage group A (23), a strain gage group B (25), a strain gage group C (27), a strain gage group D (29), and baffle-side strain gages, a U-shaped through groove B (24) and a U-shaped through groove D (28) being separately opened on two straight-line sections of the rope groove of the double-fold-line drum (16), a U-shaped through groove A (22) and a U-shaped through groove C (26) being respectively opened on two broken-line sections of the rope groove of the double-fold-line drum (16), baffle-side U-shaped through grooves being opened on a baffle of the double-fold-line drum (16), the strain gage group A (23) being adhered on an inner wall of the U-shaped through groove A (22), the strain gage group B (25) being adhered on an inner wall of the U-shaped through groove B (24) , the strain gage group C (27) being adhered on an inner wall of the U-shaped through groove C (26), the strain gage group D (29) being adhered on an inner wall of the U-shaped through groove D (28), the baffle-side strain gages being adhered on inner walls of the baffle-side U-shaped through grooves respectively, the number of the baffle-side strain gages being the same as the number of winding layers of the wire rope (4), and each baffle-side strain gage being corresponding to one layer of the wire rope.
2. The monitoring apparatus for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well according to claim 1, wherein the U-shaped through groove A (22), the U-shaped through groove B (24), the U-shaped through groove C (26), and the U-shaped through groove D (28) are all parallel to the axis of the double-fold-line drum (16).
3. A monitoring method for dynamic contact state of a multi-layer wound wire rope and a drum in an ultra-deep well according to the monitoring apparatus described in claim 1, comprising the following steps: a) adhering all the strain gage groups on the inner walls of the corresponding U-shaped through grooves, and adhering the baffle-side strain gages on the inner walls of the baffle-side U-shaped through grooves respectively; b) selecting the wire rope (4) of appropriate length, and making one end of the wire rope (4) pass through the wire rope clamp (6) and locked by using the wire rope U-shaped lock (5); c) turning on the electric motor (10) by using a controller, winding the wire rope (4) on the double-fold-line drum (16), turning off the electric motor (10) when the wire rope is wound in a required number of layers, using the disc brakes to act on the friction discs to brake the double-fold-line drum (16), and controlling, by using a computer, the servo electric cylinder (9) to horizontally move, so that the wire rope (4) reaches a set fatigue load or a deformation value under stress; d) setting an alternating displacement amplitude value of the servo electric cylinder (9) by using a computer control program, to obtain a dynamic alternating load of the wire rope (4); simulating a dynamic stress of the wire rope (4) on the surface of the double-fold-line drum (16) and on the baffle thereof in a dynamic load hoisting process of the wire rope; during simulation of the dynamic stress of the wire rope (4) on the surface of the double-fold-line drum (16) and on the baffle thereof in the dynamic load hoisting process of the wire rope, turning on a power supply to supply power to the electric motor (10), the servo electric cylinder (9), the S-shaped tension sensor (8), the strain gage group A (23), the strain gage group B (25), the strain gage group C (27), the strain gage group D (29), and the baffle-side strain gages; recording the change of the dynamic load on the wire rope (4) by using the S-shaped tension sensor (8); recording the dynamic stress of the wire rope (4) on the surface of the double-fold-line drum (16) by using the strain gage groups; and recording the dynamic stress of different layers of the wire rope (4) on the baffle of the double-fold-line drum (16) by using the baffle-side strain gages; and e) by changing the number of winding layers of the wire rope (4) and the alternating displacement amplitude value of the servo electric cylinder (9), simulating a dynamic contact stress of the wire rope (4) on the surface of the double-fold-line drum (16) and on the baffle thereof in the case of different winding layers and different dynamic loads.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435601.4A CN105858517B (en) | 2016-06-17 | 2016-06-17 | Ultradeep well multi-lay winding wire ropes and reel contact condition monitoring device and method |
| CN201610435601.4 | 2016-06-17 | ||
| PCT/CN2016/108882 WO2017215208A1 (en) | 2016-06-17 | 2016-12-07 | Monitoring apparatus and method for dynamic contact state of multi-layer wound wire rope and drum in ultra-deep well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2016412018A1 true AU2016412018A1 (en) | 2018-06-07 |
| AU2016412018B2 AU2016412018B2 (en) | 2018-10-04 |
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|---|---|---|---|
| AU2016412018A Ceased AU2016412018B2 (en) | 2016-06-17 | 2016-12-07 | Monitoring apparatus and method for dynamic contact state of multi-layer wound wire rope and drum in ultra-deep well |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN105858517B (en) |
| AU (1) | AU2016412018B2 (en) |
| RU (1) | RU2692968C1 (en) |
| WO (1) | WO2017215208A1 (en) |
Cited By (1)
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|---|---|---|---|---|
| WO2022223095A1 (en) * | 2021-04-19 | 2022-10-27 | Abb Schweiz Ag | Mine hoist monitoring system |
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| CN105858517B (en) * | 2016-06-17 | 2018-01-02 | 中国矿业大学 | Ultradeep well multi-lay winding wire ropes and reel contact condition monitoring device and method |
| CN106482782B (en) * | 2016-09-26 | 2018-09-14 | 中国矿业大学 | Dynamic radial deformation and dynamic tension monitoring device and the method for the two-fold wire type multi-lay winding steel wire rope of hoist of deep-well |
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-
2016
- 2016-06-17 CN CN201610435601.4A patent/CN105858517B/en active Active
- 2016-12-07 AU AU2016412018A patent/AU2016412018B2/en not_active Ceased
- 2016-12-07 WO PCT/CN2016/108882 patent/WO2017215208A1/en active Application Filing
- 2016-12-07 RU RU2018121089A patent/RU2692968C1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022223095A1 (en) * | 2021-04-19 | 2022-10-27 | Abb Schweiz Ag | Mine hoist monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105858517A (en) | 2016-08-17 |
| RU2692968C1 (en) | 2019-06-28 |
| WO2017215208A1 (en) | 2017-12-21 |
| CN105858517B (en) | 2018-01-02 |
| AU2016412018B2 (en) | 2018-10-04 |
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