CN116046523A - Steel wire rope fatigue resistance testing system utilizing magnetic field change - Google Patents
Steel wire rope fatigue resistance testing system utilizing magnetic field change Download PDFInfo
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- CN116046523A CN116046523A CN202310033736.8A CN202310033736A CN116046523A CN 116046523 A CN116046523 A CN 116046523A CN 202310033736 A CN202310033736 A CN 202310033736A CN 116046523 A CN116046523 A CN 116046523A
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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
- G01N3/02—Details
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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
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- G—PHYSICS
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- 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
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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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
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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Abstract
The invention belongs to the technical field of steel wire rope fatigue detection, and discloses a steel wire rope fatigue resistance testing system utilizing magnetic field change. According to the invention, the transmission liquid is pressurized by the resilience force generated by extrusion, so that the three piston columns are driven to synchronously move along the radial direction of the steel wire rope, the axes of the adapting ring, the magnetic sensor and the upper side part of the steel wire rope are kept collinear, at the moment, even if the steel wire rope changes in a tiny position, the magnetic sensor can synchronously move under the driving of the adapting wheel, the piston columns and the adapting ring, and the detection position is kept unchanged, so that the change of a detection test variable is avoided, and the detection precision is improved.
Description
Technical Field
The invention belongs to the technical field of steel wire rope fatigue detection, and particularly relates to a steel wire rope fatigue resistance test system utilizing magnetic field change.
Background
The steel wire rope is a spiral steel wire bundle formed by twisting a plurality of steel wires which meet the mechanical property, a lifting module in mechanical equipment can use the steel wire bundle, has extremely strong structural strength and tensile limit, provides lifting, traction, tensioning and bearing functions for the mechanical equipment, and needs to be applied with a certain load when leaving a factory to finish the fatigue resistance test of the steel wire rope; the test system in the prior art mainly utilizes the magnetic field change principle to realize the measurement function: the circumference of the electrified steel wire rope can generate a magnetic field, the magnetic field change is captured by arranging a magnetic sensor, and the magnetic field change is transmitted to a computer through an A/D swivel circuit, and the cross section surface of the steel wire rope is reduced when the steel wire rope is stretched, so that the current is changed, and the corresponding magnetic field is also changed; the testing system in the prior art mainly relies on the magneto-sensitive sensor to capture magnetic signals, the magneto-sensitive sensor is generally fixedly arranged, the diameter value of the steel wire rope can be slightly changed during tensile testing, the distance between the steel wire rope and the sensor is slightly changed, the steel wire rope cannot be seen by naked eyes, the magneto-sensitive sensor is deviated during magnetic field data acquisition, and the detection precision of the system is reduced.
Disclosure of Invention
The invention aims to provide a steel wire rope fatigue resistance testing system utilizing magnetic field change so as to solve the problems in the background technology.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an utilize wire rope fatigue resistance test system of magnetic field variation, includes workstation, wire rope, the equal fixed mounting of upper and lower both sides of workstation has the leading wheel, the inner wall rotation of workstation is provided with stretching mechanism, the top pressfitting of workstation is installed and is removed the frame, the top fixed mounting who removes the frame has a connecting cylinder, the inside of connecting cylinder is connected with the spliced pole No. one through the spring direction, the bottom fixedly connected with connecting block and the adaptation ring of No. one spliced pole, the interior ring fixed intercommunication of adaptation ring has the accommodation column, the inner wall of adaptation ring is provided with the extrusion post, no. two springs and piston post have been cup jointed to the inside activity of accommodation column, the other end fixedly connected with adaptation wheel of piston post, the adaptation ring has filled transmission liquid with the inner chamber intercommunication of accommodation column, the both ends of wire rope are pegged graft through the leading wheel and are set up inside stretching mechanism, wire rope runs through the interior ring face of adaptation ring and with adaptation wheel extrusion contact, the left side of adaptation ring is connected with the magnetism sensor through No. two fixedly connected with magnetism sensor.
Preferably, the stretching mechanism comprises a motor and two supporting shafts which are sequentially positioned on the left side and the right side of an output shaft of the motor, a first gear is fixedly arranged on the outer surface of the motor, a second gear is fixedly arranged on the front side of the outer surface of the supporting shaft, the first gear is in meshed transmission with the second gear, a sleeve is sleeved on the outer surface of the supporting shaft, a placing groove is formed in the left side and the right side of the outer surface of the sleeve, and two ends of the steel wire rope are movably inserted into the placing groove.
Preferably, the number of the guide wheels is four and the guide wheels are sequentially distributed on the left side and the right side of the workbench, and the steel wire rope is movably wound on the outer surface of the guide wheels.
Preferably, eight screw holes which are distributed transversely at equal intervals are formed in the front side and the rear side of the top of the workbench, and the front side and the rear side of the movable frame are mounted on the top of the workbench through bolts and screw hole pressing.
Preferably, the inside elastic connection of connecting cylinder has a spring, a spliced pole passes through a spring elastic support in the inside of connecting cylinder, the upper and lower both sides of connecting block are in proper order with a spliced pole and adapter ring fixed connection.
Preferably, the number of holding the post is three and is equiangular fixed connection at the interior ring face of adaptation ring, no. two springs activity cup joints the surface at the piston post and is set up by stretching, no. two spring's both ends in proper order with piston post and hold post elastic connection, three the surface of adaptation wheel and wire rope's surface adaptation contact.
Preferably, the number of the extrusion columns is three and the extrusion columns are distributed on the inner wall of the adaptation ring in an equiangular gluing mode, the extrusion columns are made of rubber blocks, the longitudinal section of the extrusion columns is fan-shaped, the opening and closing angles of the extrusion columns are 80 degrees, a sealing cavity is formed in the adaptation ring, and the transmission liquid is filled in the sealing cavity in a sealing mode through the extrusion columns and the containing columns.
Preferably, the number of the second connecting columns is three, the three second connecting columns are distributed on the left side of the adapting ring at equal angles, and the left side and the right side of the second connecting columns are fixedly connected with the magneto-sensitive sensor and the adapting ring in sequence.
Preferably, the number of the connecting cylinders is three and the connecting cylinders are distributed at the top of the movable frame at equal intervals, and the first spring is arranged inside the connecting cylinders in a compressed mode.
Preferably, the first gear is located at the front end of the output shaft of the motor, and the diameter value of the first gear is smaller than that of the second gear.
The beneficial effects of the invention are as follows:
1. according to the invention, the adapting wheel is arranged to be in extrusion contact with the steel wire rope, so that the adapting wheel drives the piston column to move towards the inside of the accommodating column, the piston column presses transmission liquid inwards and transmits pressure to the extruding column through the flowing characteristic of the transmission liquid, the three adapting wheels transmit the pressure equally through the piston column, so that the axis of the adapting ring and the axis of the upper side part of the steel wire rope are always collinear, the second connecting column and the magneto-sensitive sensor connected with the adapting ring can keep the relative position unchanged with the steel wire rope all the time, when the diameter value of the steel wire rope is reduced and invisible, the extruding column presses the transmission liquid through resilience force generated by extrusion, and drives the three piston columns to synchronously move along the radial direction of the steel wire rope, so that even if the steel wire rope is subjected to the change of a tiny position, the magneto-sensitive sensor can synchronously move under the driving of the adapting wheel, the piston column and the adapting ring, the magneto-sensitive sensor keeps the unchanged relative position, so that the detection variable is kept unchanged, and the detection precision is facilitated to be improved.
2. The movable frame is flexibly fixed at the top of the workbench through the bolt and the threaded hole, the adaptive ring drives the magneto-sensitive sensor to move to any point on the upper side of the steel wire rope along the axis of the steel wire rope, then the bolt is aligned with the threaded hole and the movable frame is re-fixed, so that the detection range of the device is enlarged, the fatigue resistance test of a plurality of points can be realized on the surface of the steel wire rope, and the axial direction of the magneto-sensitive sensor and the axial direction of the upper side of the steel wire rope are always kept collinear through the matching of the adaptive wheel, the piston column, the transmission liquid, the extrusion column and the adaptive ring, thereby avoiding the increase of variables during detection and improving the flexibility of detection.
3. When wire rope drives adaptation wheel and adaptation ring and removes, in order to avoid the irregular influence of removing to adaptation ring movement stability of adaptation ring, be connected through being provided with connecting block and spliced pole, when the adaptation ring removes, the radial removal of adaptation ring along spliced pole is restricted, only allow adaptation clitellum connecting block and spliced pole to carry out up-and-down rectilinear motion, when wire rope is stretched straightly and drive adaptation ring and magneto sensor through the adaptation wheel and keep synchronous movement, exert pressure to spliced pole through the connecting cylinder, overcome adaptation ring itself and be driven the power that produces by wire rope, improve adaptation ring and magneto sensor's stability.
Drawings
FIG. 1 is a schematic view of the front appearance of the structure of the present invention;
FIG. 2 is a schematic side elevational view of the structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A in accordance with the present invention;
FIG. 4 is a schematic structural view of a connecting cylinder, a first connecting column, a connecting block, a stretching mechanism, a guide wheel, a steel wire rope, an adapter ring, a second connecting column, a magneto-sensitive sensor and a containing column;
FIG. 5 is a schematic view in elevation of a structure of the present invention;
FIG. 6 is an enlarged schematic view of the structure of FIG. 5B in accordance with the present invention;
FIG. 7 is a schematic side cut-away view of the structure of the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 7 at C in accordance with the present invention;
FIG. 9 is a schematic diagram showing the separation of the connecting cylinder, the first spring, the first connecting column, the connecting block, the adapter ring, the second connecting column, the magneto-sensitive sensor, the accommodating column, the second spring and the adapter wheel;
FIG. 10 is a schematic view of the adapter ring, receiving post, spring number two, piston post, adapter wheel and compression post of the present invention in isolation;
FIG. 11 is a schematic drawing showing the drawing mechanism of the present invention in an isolated manner.
In the figure: 1. a work table; 2. a threaded hole; 3. a bolt; 4. a moving rack; 5. a connecting cylinder; 6. a first spring; 7. a first connecting column; 8. a connecting block; 9. a stretching mechanism; 91. a motor; 92. a first gear; 93. a support shaft; 94. a second gear; 95. a sleeve; 96. a placement groove; 10. a guide wheel; 11. a wire rope; 12. an adapter ring; 121. sealing the cavity; 13. a second connecting column; 14. a magneto-dependent sensor; 15. a receiving column; 16. a second spring; 17. a piston column; 18. an adapter wheel; 19. a transmission fluid; 20. and extruding the column.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 11, the embodiment of the invention provides a steel wire rope fatigue resistance test system utilizing magnetic field change, which comprises a workbench 1 and a steel wire rope 11, wherein guide wheels 10 are fixedly arranged on the upper side and the lower side of the workbench 1, a stretching mechanism 9 is rotatably arranged on the inner wall of the workbench 1, a movable frame 4 is mounted on the top of the workbench 1 in a pressing manner, a connecting cylinder 5 is fixedly arranged on the top of the movable frame 4, a first connecting column 7 is connected in the connecting cylinder 5 in a guiding manner through a first spring 6, a connecting block 8 and an adapting ring 12 are fixedly connected to the bottom of the first connecting column 7, an accommodating column 15 is fixedly connected to the inner ring surface of the adapting ring 12, a squeezing column 20 is arranged on the inner wall of the adapting ring 12, a second spring 16 and a piston column 17 are movably sleeved in the inner side of the accommodating column 15, an adapting wheel 18 is fixedly connected to the other end of the piston column 17, a transmission liquid 19 is filled in the inner cavity of the adapting ring 12 and the accommodating column 15, two ends of the steel wire rope 11 are spliced in the stretching mechanism 9 through the guide wheels 10, the inner ring 11 penetrates through the inner ring surface of the adapting ring 12 and is in contact with the adapting ring 18, and is in contact with the left sensor 13 through the adapting ring 13, and is fixedly connected with the left sensor 14;
when the system works, the steel wire rope 11 transversely penetrates through the inner annular surface of the adapter ring 12 and the magnetic sensor 14 along the axial direction of the system, the adapter wheels 18 are in contact with the steel wire rope 11 and then drive the piston column 17 to move towards the inside of the accommodating column 15, the second spring 16 is stretched to provide reset power of the piston column 17, the piston column 17 presses the transmission liquid 19 inwards and transmits pressure to the extrusion column 20 through the flowing characteristic of the transmission liquid, the three adapter wheels 18 uniformly transmit the pressure through the piston column 17, the axis of the adapter ring 12 and the axis of the upper side part of the steel wire rope 11 are always collinear, the second connecting column 13 and the magnetic sensor 14 connected with the adapter ring 12 can also keep the relative position with the steel wire rope 11 unchanged all the time, and when the steel wire rope 11 is not stretched, magnetic field signals generated by the electrified steel wire rope 11 are captured by the magnetic sensor 14, and the magnetic field signals are converted into digital signals through the A/D conversion circuit and transmitted into a computer to obtain magnetic field intensity information of the steel wire rope 11; when the stretching mechanism 9 is started, the steel wire rope 11 is continuously stretched towards the two ends, the steel wire rope 11 synchronously moves towards the two ends in the process, on one hand, the adaptive wheel 18 is driven to rotate for adaptation, meanwhile, the diameter value of the steel wire rope 11 is reduced, the invisible shrinkage phenomenon occurs, at the moment, the extrusion column 20 presses the transmission liquid 19 through resilience force generated by extrusion, the three piston columns 17 are driven to synchronously move along the radial direction of the steel wire rope 11, the adaptive wheel 18 is driven to be always in extrusion contact with the outer surface of the steel wire rope 11, the axes of the adaptive ring 12, the magneto-sensor 14 and the upper part of the steel wire rope 11 are kept collinear, at the moment, even if the steel wire rope 11 is subjected to the change of a tiny position, the magneto-sensor 14 can synchronously move under the driving of the adaptive wheel 18, the piston columns 17 and the adaptive ring 12, the detection position is kept unchanged, and the detection test variable is changed, and the detection precision is improved.
The stretching mechanism 9 comprises a motor 91 and two supporting shafts 93 which are sequentially positioned at the left side and the right side of an output shaft of the motor 91, a first gear 92 is fixedly arranged on the outer surface of the motor 91, a second gear 94 is fixedly arranged at the front side of the outer surface of the two supporting shafts 93, the first gear 92 is meshed with the second gear 94 for transmission, sleeves 95 are fixedly sleeved on the outer surface of the supporting shafts 93, placing grooves 96 are formed in the left side and the right side of the outer surfaces of the left sleeve 95 and the right sleeve 95, and two ends of a steel wire rope 11 are movably inserted into the placing grooves 96;
after the motor 91 is started, the two supporting shafts 93 are driven to synchronously rotate through the first gear 92 and the second gear 94, then the sleeve 95 is driven to rotate, two ends of the steel wire rope 11 are inserted into the left and right placement grooves 96 through the guiding of the guide wheel 10, when the sleeve 95 rotates, two ends of the steel wire rope 11 subjected to radial stress cannot be separated from the placement grooves 96, and when the sleeve 95 rotates, two ends of the steel wire rope 11 can be synchronously wound, so that the stretching detection function of the steel wire rope 11 is realized.
The number of the guide wheels 10 is four, the guide wheels are sequentially distributed on the left side and the right side of the workbench 1, and the steel wire ropes 11 are movably wound on the outer surfaces of the guide wheels 10;
the guide wheel 10 is responsible for providing support for the wire rope 11 and maintaining its guiding function, and the guide wheel 10 keeps the wire rope 11 straight and receives the detection when the wire rope 11 is stretched and moved.
Eight threaded holes 2 which are distributed transversely at equal intervals are formed in the front side and the rear side of the top of the workbench 1, and the front side and the rear side of the movable frame 4 are mounted on the top of the workbench 1 in a pressing mode through bolts 3 and the threaded holes 2;
the bolt 3 is used for fixing and dismantling the movable frame 4, the movable frame 4 is fixed at the top of the workbench 1, the adapter ring 12 drives the magneto-sensitive sensor 14 to move to any point on the upper side of the steel wire rope 11 along the axis of the steel wire rope 11, then the bolt 3 is aligned with the threaded hole 2 and the movable frame 4 is fixed again, so that the detection range of the device is enlarged, fatigue resistance tests of a plurality of points can be realized on the surface of the steel wire rope 11, and the axial direction of the magneto-sensitive sensor 14 and the axial direction of the upper side of the steel wire rope 11 are always kept collinear through the matching of the adapter wheel 18, the piston column 17, the transmission liquid 19, the extrusion column 20 and the adapter ring 12, and accordingly increase of detection time variable is avoided, and the detection flexibility is improved.
The inside of the connecting cylinder 5 is elastically connected with a first spring 6, a first connecting column 7 is elastically supported in the inside of the connecting cylinder 5 through the first spring 6, and the upper side and the lower side of the connecting block 8 are sequentially and fixedly connected with the first connecting column 7 and the adapting ring 12;
when the steel wire rope 11 drives the adapting wheel 18 and the adapting ring 12 to move, in order to avoid the influence of irregular movement of the adapting ring 12 on the movement stability of the adapting ring 12, the adapting ring 12 is connected with the first connecting column 7 through the connecting block 8, when the adapting ring 12 moves, the radial movement of the adapting ring 12 along the first connecting column 7 is limited, only the adapting ring 12 is allowed to carry out up-down linear movement with the connecting block 8 and the first connecting column 7, when the steel wire rope 11 is straightened and the adapting ring 12 and the magneto sensor 14 are driven by the adapting wheel 18 to keep synchronous movement, the connecting column 7 is pressed by the connecting cylinder 5, so that the power generated when the adapting ring 12 is driven by the steel wire rope 11 is overcome, and the stability of the adapting ring 12 and the magneto sensor 14 is improved.
The number of the accommodating columns 15 is three, the accommodating columns are fixedly connected to the inner ring surface of the adapting ring 12 at equal angles, the second spring 16 is movably sleeved on the outer surface of the piston column 17 and is stretched, two ends of the second spring 16 are sequentially and elastically connected with the piston column 17 and the accommodating columns 15, and the outer surfaces of the three adapting wheels 18 are in adapting contact with the outer surface of the steel wire rope 11;
the second spring 16 is sleeved on the outer surface of the piston column 17, but is not responsible for feedback when the piston column 17 is stressed, when the steel wire rope 11 is in contact with the three adapting wheels 18, the three adapting wheels 18 are driven to synchronously move, the flowing transmission liquid 19 is pressed and the extrusion column 20 is synchronously compressed by driving the piston column 17 to move towards the accommodating column 15, so that the extrusion column 20 deforms and generates pressure on the transmission liquid 19, and the stability of the relative positions of the adapting wheels 18 when the surface of the steel wire rope 11 is pressed is maintained.
The number of the extrusion columns 20 is three, the extrusion columns 20 are distributed on the inner wall of the adapter ring 12 in an adhesive manner at equal angles, the extrusion columns 20 are made of rubber blocks, the longitudinal section of the extrusion columns 20 is fan-shaped, the opening and closing angles are 80 degrees, a sealing cavity 121 is formed in the adapter ring 12, and the transmission liquid 19 is filled in the sealing cavity 121 in a sealing manner through the extrusion columns 20 and the accommodating columns 15;
as shown in fig. 7 and 8, the extrusion column 20 made of rubber blocks can synchronously generate the same pressure on the three piston columns 17 when the piston columns 17 are pressed and deformed by the transmission liquid 19, so that the axis of the adapter ring 12 and the axis of the steel wire rope 11 can be ensured to be collinear.
The number of the second connecting columns 13 is three, the three second connecting columns 13 are distributed on the left side of the adapter ring 12 at equal angles, and the left side and the right side of the second connecting columns 13 are fixedly connected with the magneto-sensitive sensor 14 and the adapter ring 12 in sequence;
the second connecting column 13 is used for fixedly connecting the magneto-sensitive sensor 14, and is used for connecting the adapter ring 12 and the magneto-sensitive sensor 14, so that the adapter ring 12 and the magneto-sensitive sensor 14 are connected into a whole.
The number of the connecting cylinders 5 is three, the connecting cylinders are distributed at the top of the movable frame 4 at equal intervals, and the first spring 6 is compressed and arranged in the connecting cylinders 5;
the first spring 6 supports and connects the adapter ring 12 and the magneto-sensitive sensor 14 by matching with the first spring 6, the first connecting column 7 and the connecting block 8, and provides corresponding guiding function when the adapter ring 12 moves.
Wherein, the first gear 92 is positioned at the front end of the output shaft of the motor 91, and the diameter value of the first gear 92 is smaller than that of the second gear 94;
the first gear 92 is engaged with the second gear 94 to rotate when rotated by the motor 91, and reduces rotation and increases torque.
Working principle and using flow:
firstly, a steel wire rope 11 to be detected penetrates through the inner ring surfaces of an adapter ring 12 and a second connecting column 13, the outer surface of the steel wire rope 11 is in contact with an adapter wheel 18 and generates extrusion force to drive a piston column 17 to move towards the inside of a containing column 15, a second spring 16 is stretched, a transmission liquid 19 positioned in the containing column 15 is extruded and flows by the moving piston column 17, the extrusion column 20 is pressed, the extrusion column 20 is subjected to extrusion force and generates pressure rise of deformation transmission liquid 19, and two ends of the steel wire rope 11 are sequentially inserted into the inside of a left placing groove 96 and a right placing groove 96 downwards and fixed through the guidance of a guide wheel 10;
then, the terminal of the magneto-dependent sensor 14 is connected to the a/D conversion circuit and connected to the computer, and when the wire rope 11 is not stretched: energizing the steel wire rope 11 and generating a magnetic field, wherein the magnetic sensor 14 captures a magnetic field signal and converts the magnetic field signal into a digital signal through an A/D (analog to digital) conversion circuit, and then the digital signal is transmitted into a computer to obtain magnetic field intensity information;
when detecting, the method comprises the following steps: starting the motor 91 and driving the first gear 92 and the second gear 94 to rotate, driving the supporting shaft 93 and the sleeve 95 to rotate, enabling the rotating sleeve 95 to wind and stretch the steel wire rope 11, enabling the steel wire rope 11 to be pulled and straightened, at the moment, enabling the steel wire rope 11 positioned on the upper side to straighten to drive the adapting wheel 18 and the adapting ring 12 to integrally move, enabling the axes of the adapting ring 12 and the magneto-sensor 14 to be collinear with the axes of the steel wire rope 11, at the moment, enabling the magneto-sensor 14 to detect magnetic field intensity information when the steel wire rope 11 is stretched again, and enabling the adapting wheel 18 to drive the piston column 17 to move towards the inside of the accommodating column 15 and generate pressure on the extrusion column 20 through the compressed and flowing transmission liquid 19, enabling the adapting ring 12 and the steel wire rope 11 in stretching movement to always keep stable relative positions, and enabling the first spring 6 to be stretched or compressed by driving the first connecting column 7 to move up and down along the inside of the connecting cylinder 5 through the connecting block 8 when the adapting ring 12 moves up and down;
finally, when the tensile strength of different positions of the steel wire rope 11 is required to be detected, the bolts 3 are disassembled, the movable frame 4 is moved leftwards or rightwards, and then the bolts 3 are fixed on the movable frame 4 again, so that flexible detection can be realized, and an external student power supply can be adopted for connecting a power supply.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an utilize magnetic field to change wire rope fatigue resistance test system, includes workstation (1), wire rope (11), the upper and lower both sides of workstation (1) are all fixed mounting has leading wheel (10), its characterized in that: the inner wall rotation of workstation (1) is provided with stretching mechanism (9), the top pressfitting of workstation (1) is installed and is moved frame (4), the top fixed mounting who removes frame (4) has connecting cylinder (5), the inside of connecting cylinder (5) is connected with connecting column (7) through spring (6) direction, the bottom fixedly connected with connecting block (8) and adaptation ring (12) of connecting column (7) one, the interior ring surface fixed intercommunication of adaptation ring (12) has and holds post (15), the inner wall of adaptation ring (12) is provided with extrusion post (20), the inside activity that holds post (15) has cup jointed No. two spring (16) and piston post (17), the other end fixedly connected with adaptation wheel (18) of piston post (17), the inner chamber intercommunication that adaptation ring (12) and holds post (15) is filled with transmission liquid (19), the both ends of wire rope (11) are pegged graft and are set up at stretching mechanism (9) inside through leading wheel (10), the inner ring (12) and the adaptation ring (12) have the permanent magnet of adaptation ring (13) and the interior side of adaptation ring (17) through the extrusion post (14).
2. The system for testing fatigue resistance of steel wire ropes by utilizing magnetic field variation as claimed in claim 1, wherein: the stretching mechanism (9) comprises a motor (91) and two supporting shafts (93) positioned on the left side and the right side of an output shaft of the motor (91), a gear (92) is fixedly arranged on the outer surface of the motor (91), a gear (94) is fixedly arranged on the front side of the outer surface of each supporting shaft (93), the gear (92) is meshed with the gear (94) for transmission, a sleeve (95) is sleeved on the outer surface of each supporting shaft (93) in a fixed manner, a placing groove (96) is formed in the left side and the right side of the outer surface of each sleeve (95), and two ends of each steel wire rope (11) are movably inserted into the placing grooves (96).
3. The system for testing fatigue resistance of steel wire ropes by utilizing magnetic field variation as claimed in claim 1, wherein: the number of the guide wheels (10) is four, the guide wheels are sequentially distributed on the left side and the right side of the workbench (1), and the steel wire ropes (11) are movably wound on the outer surfaces of the guide wheels (10).
4. The system for testing fatigue resistance of steel wire ropes by utilizing magnetic field variation as claimed in claim 1, wherein: eight threaded holes (2) which are distributed transversely at equal intervals are formed in the front side and the rear side of the top of the workbench (1), and the front side and the rear side of the movable frame (4) are mounted on the top of the workbench (1) through bolts (3) and the threaded holes (2) in a pressing mode.
5. The system for testing fatigue resistance of steel wire ropes by utilizing magnetic field variation as claimed in claim 1, wherein: the inside elastic connection of connecting cylinder (5) has a spring (6), a spliced pole (7) is through a spring (6) elastic support in the inside of connecting cylinder (5), the upper and lower both sides of connecting block (8) are in proper order with a spliced pole (7) and adapter ring (12) fixed connection.
6. The system for testing fatigue resistance of steel wire ropes by utilizing magnetic field variation as claimed in claim 1, wherein: the number of the containing columns (15) is three, the containing columns are fixedly connected to the inner annular surface of the adapting ring (12) at equal angles, the second spring (16) is movably sleeved on the outer surface of the piston column (17) and is stretched, two ends of the second spring (16) are sequentially connected with the piston column (17) and the containing columns (15) in an elastic mode, and the outer surfaces of the adapting wheels (18) are in adapting contact with the outer surface of the steel wire rope (11).
7. The system for testing fatigue resistance of steel wire ropes by utilizing magnetic field variation as claimed in claim 1, wherein: the number of the extrusion columns (20) is three, the extrusion columns (20) are distributed on the inner wall of the adapter ring (12) in an equiangular gluing mode, the extrusion columns (20) are made of rubber blocks, the longitudinal section of the extrusion columns (20) is fan-shaped, the opening and closing angles of the extrusion columns are 80 degrees, a sealing cavity (121) is formed in the adapter ring (12), and the transmission liquid (19) is filled in the sealing cavity (121) in a sealing mode through the extrusion columns (20) and the containing columns (15).
8. The system for testing fatigue resistance of steel wire ropes by utilizing magnetic field variation as claimed in claim 1, wherein: the number of the second connecting columns (13) is three, the three second connecting columns (13) are distributed on the left side of the adapter ring (12) at equal angles, and the left side and the right side of the second connecting columns (13) are fixedly connected with the magneto-sensitive sensor (14) and the adapter ring (12) in sequence.
9. The system for testing fatigue resistance of steel wire ropes by utilizing magnetic field variation as claimed in claim 1, wherein: the number of the connecting cylinders (5) is three, the connecting cylinders are distributed at the top of the movable frame (4) at equal intervals, and the first springs (6) are arranged in the connecting cylinders (5) in a compressed mode.
10. A steel wire rope fatigue resistance testing system utilizing magnetic field variation as recited in claim 2, wherein: the first gear (92) is positioned at the front end of the output shaft of the motor (91), and the diameter value of the first gear (92) is smaller than that of the second gear (94).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310033736.8A CN116046523A (en) | 2023-01-10 | 2023-01-10 | Steel wire rope fatigue resistance testing system utilizing magnetic field change |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310033736.8A CN116046523A (en) | 2023-01-10 | 2023-01-10 | Steel wire rope fatigue resistance testing system utilizing magnetic field change |
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| CN116046523A true CN116046523A (en) | 2023-05-02 |
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| CN202310033736.8A Pending CN116046523A (en) | 2023-01-10 | 2023-01-10 | Steel wire rope fatigue resistance testing system utilizing magnetic field change |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117554210A (en) * | 2024-01-09 | 2024-02-13 | 江苏爱索新材料科技有限公司 | Bending fatigue testing machine for testing composite pipe |
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2023
- 2023-01-10 CN CN202310033736.8A patent/CN116046523A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117554210A (en) * | 2024-01-09 | 2024-02-13 | 江苏爱索新材料科技有限公司 | Bending fatigue testing machine for testing composite pipe |
| CN117554210B (en) * | 2024-01-09 | 2024-04-16 | 江苏爱索新材料科技有限公司 | Bending fatigue testing machine for testing composite pipe |
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