CN112504819A - Steel wire corrosion wear coupling fatigue test device - Google Patents
Steel wire corrosion wear coupling fatigue test device Download PDFInfo
- Publication number
- CN112504819A CN112504819A CN202011579256.4A CN202011579256A CN112504819A CN 112504819 A CN112504819 A CN 112504819A CN 202011579256 A CN202011579256 A CN 202011579256A CN 112504819 A CN112504819 A CN 112504819A
- Authority
- CN
- China
- Prior art keywords
- steel wire
- loading
- test
- corrosion
- guide pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
-
- 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
-
- 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
- G01N3/56—Investigating resistance to wear or abrasion
-
- 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
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
-
- 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
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- 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
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
- G01N2203/024—Corrosive
Abstract
The invention discloses a steel wire corrosion wear coupling fatigue test device which comprises a fatigue test machine, a lateral force loading module and an electrolysis accelerated corrosion module, wherein the electrolysis accelerated corrosion module comprises a direct-current stabilized power supply, a positive electrode lead and a negative electrode lead are connected to the direct-current stabilized power supply, the electrolysis accelerated corrosion module also comprises a first liquid storage cylinder and a liquid collection funnel, corrosion media are respectively contained in the first liquid storage cylinder and the liquid collection funnel, a first guide pipe is arranged below the first liquid storage cylinder, one end of the first guide pipe is communicated with the first liquid storage cylinder, the other end of the first guide pipe is fixed on a steel wire contact surface along a test steel wire, and the corrosion media flow out of the first guide pipe and then flow downwards along the test steel wire to enter the liquid collection funnel. The test device provided by the invention realizes synchronous action of corrosion, abrasion and fatigue on the steel wire, can be used for corrosion abrasion coupling fatigue test and comparison test research of the steel wire, and has strong operability; the fatigue stress amplitude, the micromotion amplitude, the friction angle and the test parameter are convenient to adjust and control.
Description
Technical Field
The invention relates to a test device, in particular to a steel wire corrosion wear coupling fatigue test device.
Background
Steel wire products such as steel wires, steel strands and steel wire ropes are widely used as cables of cable-supported bridges and buildings, cables of aerial structures and traction ropes of hoisting systems due to the remarkable advantages of high tensile strength, low bending rigidity and the like. The structural performance and the service life of the device are directly related to the structure, the working performance of the device is improved, and the safe operation is realized. However, in the steel wire products, especially the steel wire products with spiral structure, which are caused by the fatigue action and repeated deformation of the steel wires in long-term service, the deformation difference and bending action of the steel wires and strands in the steel wires cause micro-motion amplitude between the steel wires and the steel wire bundles which are mutually extruded. The fretting fatigue and even fracture of the steel wire under the action of composite load can be caused by the fretting amplitude acting on the spiral steel wire. Meanwhile, steel wire products are often corroded due to the invasion of corrosive media of the environment or rainwater, thereby causing performance degradation or failure. Investigation results show that corrosive wear coupled fatigue may be a significant cause of degradation of wire properties, breakage and premature cable failure. Bridge accidents caused by failure of cables at home and abroad, breakage of coal mine hoisting steel wire ropes and the like are often caused by combined action of corrosion, abrasion and fatigue of the steel wires. Therefore, the method has important significance for disclosing the steel wire corrosion wear coupling fatigue mechanism, inverting the steel wire damage evolution process under the multi-factor coupling action and quantitatively evaluating the service life of the steel wire, optimizing the performance of steel wire products such as steel wires, steel strands and steel wire ropes, prolonging the service life, ensuring the safety of cable-supported bridges, buildings, elevators, mines and the like, avoiding major disaster accidents and the like.
Therefore, the steel wire corrosion wear coupling fatigue test device is provided, synchronous application of corrosion, wear and fatigue is realized, and the effects and influences of fatigue parameters, wear parameters and corrosion parameters such as fatigue stress amplitude, micro-motion amplitude, lateral force, friction angle, corrosion speed and the like in the corrosion wear coupling fatigue process are quantitatively tested, so that the steel wire damage evolution process under the steel wire corrosion wear coupling fatigue mechanism and the inversion multi-factor coupling effect and the performance and the service life of the steel wire are quantitatively evaluated.
Currently, apparatus and methods for corrosion, wear or fatigue coupling testing include: the patent No. 201210062350.1 discloses a multidirectional fretting fatigue testing machine with controllable testing environment and a testing method thereof, wherein the testing machine comprises a vertical fretting mechanism which is excited by an electromagnetic excitation actuator and provides pressure between samples and a two-dimensional fretting mechanism which is excited by a piezoelectric ceramic actuator and provides transverse reciprocating amplitude, and only the multidirectional fretting friction and wear performance of a flat plate material can be evaluated; patent No. 201610847086.0 discloses a steel wire and steel wire rope opposite-grinding clamp for a multifunctional friction wear testing machine, which comprises an upper clamp and a lower clamp, wherein a liftable support table provides lateral pressure between steel wires, a pre-tightening extension rod provides constant tensile stress of the steel wires, and the lower clamp is driven by a test bed of the friction wear testing machine to reciprocate so as to realize mutual friction wear between the wires; none of the above test devices is capable of achieving coupling of frictional wear and axial fatigue or fretting fatigue, even though the corrosive effect is not considered. The patent No. 201410525508.3 discloses a multi-axis fretting fatigue test device and method for steel wires, wherein the fretting amplitude is obtained by the alternating displacement of a hydraulic cylinder control piston, and the weight of a weight is transmitted to a left loading block and a right loading block through a nylon wire, a guide wheel and an L-shaped sliding block to provide lateral force for the steel wires; all the test devices are steel wire linear friction wear, and the influence of the steel wire spiral structure cannot be considered, and the corrosion effect is not considered. The patent No. 201110195119.5 discloses a test method and a device for monitoring the fretting fatigue state of a steel wire, wherein axial alternating load is applied through the up-and-down movement of a hydraulic lifting platform, a horizontal loading device provides lateral force of the steel wire, tangential force is transmitted to a spoke type tension-compression sensor through an internal thread connecting rod on a loading block, an acoustic emission sensor arranged on an upper holding block of a beam top is adopted to monitor fretting fatigue fracture of the steel wire, and the monitoring method is complex and is not easy to operate; CN201510051377.4 discloses a steel wire rope bending fatigue damage monitoring system under the coupling action of corrosion-alternating load, which can realize the steel wire rope bending fatigue test under the coupling action of corrosion and alternating load, and quantitatively monitor the internal damage of the steel wire rope and reveal a steel wire rope bending fatigue damage failure machine; but axial fatigue effects and inter-wire wear at different friction angles cannot be taken into account. Patent number CN201610093465.5 discloses a multishaft fretting corrosion fatigue damage monitoring device and method for a kilometer deep well hoisting steel wire rope, which can realize the coupling fatigue of torsional fatigue, fretting wear and corrosion under constant tensile stress, without considering the difference of friction angles and without considering axial fatigue. Patent No. CN201710121613.4 discloses a stretch bending coupling corrosion fatigue testing machine, and the weight provides invariable axial tensile stress, and the corruption groove provides the corrosive environment, and the rotation bending loading can take place for the test piece to select dress attach fitting and load plate, but fails to consider wearing and fatigue effect. Patent No. 201710570130.2 discloses a test apparatus and method for measuring the service life of steel wires under the action of corrosion fatigue coupling, which comprises a reaction frame, a corrosion circulation container and a fatigue tester, and can realize the corrosion fatigue coupling test of a plurality of steel wires, but cannot consider the problem of multi-factor coupling fatigue such as abrasion action.
Disclosure of Invention
The invention aims to provide a steel wire corrosion wear coupling fatigue test device, which realizes synchronous action of corrosion, wear and fatigue on a steel wire, can be used for corrosion wear coupling fatigue test of the steel wire and comparison test research thereof, and has strong operability; the device is used for quantitatively testing fatigue parameters such as fatigue stress amplitude, fretting amplitude, lateral force, friction angle, corrosion speed and the like, the effects and influences of wear parameters and corrosion parameters in the process of corrosion wear coupling fatigue and quantitatively evaluating the performance and service life of the steel wire, and has a wide application range; the method for adjusting and controlling the test parameters such as the fatigue stress amplitude, the micro-motion amplitude, the lateral force, the friction angle, the corrosion current and the like is convenient; the fatigue machine consists of a traditional fatigue machine and parts with simple structures, is low in manufacturing cost and has good economic benefits; all parts can be dismantled, and the installation, change test piece are simple.
The purpose of the invention can be realized by the following technical scheme:
a steel wire corrosion wear coupling fatigue test device comprises a fatigue test machine, a lateral force loading module and an electrolysis accelerated corrosion module, wherein the electrolysis accelerated corrosion module comprises a direct-current stabilized power supply, a positive electrode lead and a negative electrode lead are connected to the direct-current stabilized power supply, the electrolysis accelerated corrosion module further comprises a first liquid storage cylinder and a liquid collection funnel, corrosive media are contained in the first liquid storage cylinder and the liquid collection funnel, a first guide pipe is arranged below the first liquid storage cylinder, one end of the first guide pipe is communicated with the first liquid storage cylinder, the other end of the first guide pipe is fixed on a steel wire contact surface along a test steel wire, and the corrosive media flow out of the first guide pipe and then flow downwards along the test steel wire to enter the liquid collection funnel;
one end of the positive electrode lead is connected with the positive electrode of the direct-current stabilized power supply, the other end of the positive electrode lead is connected with the test steel wire, one end of the negative electrode lead is connected with the negative electrode of the direct-current stabilized power supply, the other end of the negative electrode lead is inserted into the first guide pipe to be contacted with a corrosive medium, the negative electrode lead is connected with the first guide pipe in a sealing mode, and the negative electrode lead extends out of the first guide pipe to be not contacted with the.
Further, the corrosive medium is 3.5% NaCl.
Furthermore, a second guide pipe is communicated with the lower part of the liquid collecting funnel, and a second liquid storage cylinder is arranged below the second guide pipe.
Further, fatigue testing machine includes base and crossbeam, is equipped with the stand of symmetric distribution between base and the crossbeam, is equipped with down the chuck on the base, and the below of crossbeam is equipped with the chuck, has placed the test steel wire between lower chuck and the last chuck, and lower chuck and last chuck press from both sides the both ends of testing the steel wire respectively tightly, are equipped with the driving piece between crossbeam and the chuck, and driving piece drive chuck reciprocating motion drives the test steel wire reciprocating extension and takes place fatigue.
Further, the lateral force loading module comprises symmetrically distributed horizontal bearing tables, the horizontal bearing tables are respectively installed and fixed on the two stand columns, the two horizontal bearing tables are horizontally aligned to the horizontal bearing tables, a sliding supporting plate is arranged between the horizontal bearing tables, symmetrically distributed first waist-shaped holes are formed in the sliding supporting plate, second waist-shaped holes are formed in the sliding supporting plate, the test steel wire penetrates through the second waist-shaped holes, symmetrically distributed threaded holes are formed between the second waist-shaped holes and the first waist-shaped holes in one side, and the sliding supporting plate penetrates through the screw rods and is installed and fixed on the horizontal bearing tables.
Furthermore, the sliding support plate is provided with symmetrically distributed support plates, the support plates are provided with sliding grooves and guiding support columns, loading blocks are arranged between the support plates, the loading blocks are located in the sliding grooves, and first loading steel wires are installed on the loading blocks.
Furthermore, the loading block comprises a loading block body, second fixing screw rods which are symmetrically distributed are arranged on the loading block body, traction rods are arranged at two ends of the loading block body, a first semi-cylindrical channel is arranged on the loading block body, a first loading steel wire is located in the first semi-cylindrical channel, and the first loading steel wire is clamped and fixed through the second fixing screw rods.
Furthermore, the sliding support plate is provided with symmetrically distributed bolts, the bolts are fixed on the sliding support plate through threaded holes, fixing nuts are arranged on the bolts, supporting blocks are arranged on the bolts, second loading steel wires are mounted on the supporting blocks, and the heights of the supporting blocks are adjusted by rotating the bolts, so that the first loading steel wires and the second loading steel wires are located at the same height.
Further, the supporting block comprises a supporting block main body, the supporting block main body is provided with symmetrically distributed mounting holes, the supporting block main body is sleeved on the bolt through the mounting holes and is fixed through a nut, the supporting block main body is provided with a connecting piece, the supporting block main body is provided with an angle adjusting disc, the angle adjusting disc is provided with a through hole, the angle adjusting disc is provided with symmetrically distributed arc-shaped grooves, the connecting piece is positioned in the through hole, one end of the connecting piece is fixedly connected with the supporting block main body, the other end of the connecting piece is rotatably provided with a supporting block body, the supporting block body is rotatably provided with symmetrically distributed limiting fixing screws, the limiting fixing screws penetrate through the arc-shaped grooves and are rotatably connected with the supporting block body, the supporting block body is provided with symmetrically distributed first fixing screws, the supporting block body is provided with a second semi, through rotating the support block, rotate spacing clamping screw and fix, adjust the angle of second loading steel wire.
Furthermore, the angle between the steel wires is changed by adjusting the supporting block, the test steel wire is positioned between the adjusting supporting block and the loading block, the traction rope is arranged on the traction rod and is guided and supported by the guide supporting column, one end of the traction rope is fixedly connected with the traction rod, the other end of the traction rope is provided with a mass block, the loading block and the sliding supporting plate are driven to slide in opposite directions under the action of gravity of the mass block, and the first loading steel wire and the second loading steel wire mutually extrude the test steel wire to provide lateral force.
The invention has the beneficial effects that:
1. the test device provided by the invention realizes synchronous action of corrosion, abrasion and fatigue on the steel wire, can be used for corrosion abrasion coupling fatigue test and comparison test research of the steel wire, and has strong operability;
2. the test device is used for quantitatively testing fatigue parameters such as fatigue stress amplitude, fretting amplitude, lateral force, friction angle, corrosion speed and the like, the effects and influences of the wear parameters and the corrosion parameters in the process of corrosion wear coupling fatigue, quantitatively evaluating the performance and the service life of the steel wire, and has wide application range;
3. the method for adjusting and controlling the test parameters of the fatigue stress amplitude, the micro-motion amplitude, the lateral force, the friction angle, the corrosion current and the like in the test device is convenient;
4. the testing device consists of the traditional fatigue machine and parts with simple structure, has low manufacturing cost and good economic benefit; all parts can be dismantled, and the installation, change test piece are simple.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the structure of the test apparatus of the present invention;
FIG. 2 is a schematic view of a part of the structure of the test apparatus of the present invention;
FIG. 3 is a schematic view of the support block configuration of the present invention;
FIG. 4 is a schematic diagram of the load block structure of the present invention;
FIG. 5 is a schematic view of the sliding plate of the present invention;
FIG. 6 is a schematic diagram of the operation of the test apparatus of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A steel wire corrosion wear coupling fatigue test device comprises a fatigue test machine, a lateral force loading module and an electrolysis accelerated corrosion module.
Fatigue testing machine includes base and crossbeam 4, as shown in fig. 1, be equipped with symmetric distribution's stand 3 between base and the crossbeam 4, be equipped with down chuck 2 on the base, the below of crossbeam 4 is equipped with chuck 1, lower chuck 2 and last chuck have placed test steel wire 20 between 1, lower chuck 2 presss from both sides tightly test steel wire 20's both ends with last chuck 1 respectively, be equipped with driving piece 40 between crossbeam 4 and the chuck 1, driving piece 40 drives chuck 1 reciprocating motion, drive test steel wire 20 reciprocating elongation, take place fatigue.
The lateral force loading module comprises horizontal bearing platforms 9 which are symmetrically distributed, the horizontal bearing platforms 9 are respectively installed and fixed on the two stand columns 3, the two horizontal bearing platforms 9 are horizontally aligned to each other, a sliding supporting plate 8 is arranged between the horizontal bearing platforms 9, first waist-shaped holes 31 which are symmetrically distributed are formed in the sliding supporting plate 8, as shown in fig. 5, second waist-shaped holes 30 are formed in the sliding supporting plate 8, the test steel wire 20 penetrates through the second waist-shaped holes 30, threaded holes 32 which are symmetrically distributed are formed between the second waist-shaped holes 30 and the first waist-shaped holes 31 on one side, and the sliding supporting plate 8 penetrates through the first waist-shaped holes 31 through screws and is installed and fixed on the horizontal bearing platforms 9.
The sliding support plate 8 is provided with support plates 7 which are symmetrically distributed, as shown in fig. 2, the support plates 7 are provided with sliding grooves and guide support columns, loading blocks 5 are arranged between the support plates 7, the loading blocks 5 are located in the sliding grooves, and first loading steel wires 21a are mounted on the loading blocks 5.
The loading block 5 includes a loading block 28, as shown in fig. 4, the loading block 28 is provided with second fixing screws 281 symmetrically distributed, two ends of the loading block 28 are both provided with draw bars 29, the loading block 28 is provided with a first semi-cylindrical channel 282, the first loading steel wire 21a is located in the first semi-cylindrical channel 282 and is fastened and fixed by the second fixing screws 281.
The sliding support plate 8 is provided with symmetrically distributed bolts 12, the bolts 12 are fixed on the sliding support plate 8 through threaded holes 32, fixing nuts are arranged on the bolts 12, the bolts 12 are provided with supporting blocks 6, the supporting blocks 6 are provided with second loading steel wires 21b, and the heights of the supporting blocks 6 are adjusted by rotating the bolts 12, so that the first loading steel wires 21a and the second loading steel wires 21b are located at the same height.
The supporting block 6 comprises a supporting block main body 61, as shown in fig. 3, the supporting block main body 61 is provided with symmetrically distributed mounting holes 62, the supporting block main body 61 is sleeved on the bolt 12 through the mounting holes 62 and is fixed through a nut, the supporting block main body 61 is provided with a connecting piece 25, the supporting block main body 61 is provided with an angle adjusting disc 23, the angle adjusting disc 23 is provided with a through hole 231, the angle adjusting disc 23 is provided with symmetrically distributed arc-shaped grooves 27, the connecting piece 25 is positioned in the through hole 231, one end of the connecting piece 25 is fixedly connected with the supporting block main body 61, the other end is rotatably provided with a supporting block body 22, the supporting block body 22 is rotatably provided with symmetrically distributed limiting fixing screws 63, the limiting fixing screws 63 penetrate through the arc-shaped grooves 27 and are rotatably connected with the supporting block body 22, the supporting block body 22 is, the second loading wire 21b is positioned in the second semi-cylindrical channel 26 and is clamped and fixed by the first fixing screw 24, and the angle of the second loading wire 21b is adjusted by rotating the support block 22 and rotating the limiting fixing screw 63.
The angle between the steel wires is changed by adjusting the supporting block 6, the test steel wire 20 is positioned between the adjusting supporting block 6 and the loading block 5, the traction rope 11 is arranged on the traction rod 29, the traction rope 11 is guided and supported through the guide supporting column, one end of the traction rope 11 is fixedly connected with the traction rod 29, the other end of the traction rope is provided with the mass block 10, the loading block 5 and the sliding supporting plate 8 are driven to slide oppositely under the action of gravity of the mass block 10, and the first loading steel wire 21a and the second loading steel wire 21b mutually extrude the test steel wire 20 to provide lateral force.
The electrolysis accelerated corrosion module comprises a direct current stabilized voltage power supply 13, a positive wire 14 and a negative wire 15 are connected to the direct current stabilized voltage power supply 13, the electrolysis accelerated corrosion module further comprises a first liquid storage barrel 19 and a liquid collection funnel 18, corrosive media 16 are contained in the first liquid storage barrel 19 and the liquid collection funnel 18, the corrosive media 16 are 3.5% of NaCl, a first guide pipe 17 is arranged below the first liquid storage barrel 19, one end of the first guide pipe 17 is communicated with the first liquid storage barrel 19, the other end of the first guide pipe is fixed on a steel wire contact surface along a test steel wire 20, the corrosive media 16 flow downwards along the test steel wire 20 after flowing out of the first guide pipe 17 to enter the liquid collection funnel 18, a second guide pipe 181 is communicated with the lower part of the liquid collection funnel 18, and a second liquid storage barrel 182 is arranged below the second guide pipe 181.
One end of the positive electrode lead 14 is connected with the positive electrode of the direct current stabilized voltage power supply 13, the other end of the positive electrode lead is connected with the test steel wire 20, one end of the negative electrode lead 15 is connected with the negative electrode of the direct current stabilized voltage power supply 13, the other end of the negative electrode lead is inserted into the first guide pipe 17 to be contacted with the corrosive medium, the negative electrode lead 15 is connected with the first guide pipe 17 in a sealing mode, and as shown in fig. 6, the negative electrode lead 15 extends out of the first guide pipe 17 to be.
The flow rate of the first conduit 17 forms a stable corrosion environment on the contact surface of the test steel wire 20, and the output current of the DC stabilized power supply 13 is set to provide a stable accelerated corrosion current.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (10)
1. A steel wire corrosion wear coupling fatigue test device comprises a fatigue test machine, a lateral force loading module and an electrolysis accelerated corrosion module, the electrolytic accelerated corrosion module is characterized by comprising a direct-current stabilized power supply (13), wherein a positive electrode lead (14) and a negative electrode lead (15) are connected to the direct-current stabilized power supply (13), the electrolytic accelerated corrosion module further comprises a first liquid storage cylinder (19) and a liquid collection funnel (18), corrosive media (16) are respectively contained in the first liquid storage cylinder (19) and the liquid collection funnel (18), a first guide pipe (17) is arranged below the first liquid storage cylinder (19), one end of the first guide pipe (17) is communicated with the first liquid storage cylinder (19), the other end of the first guide pipe is fixed on a steel wire contact surface along a test steel wire (20), and the corrosive media (16) flow out of the first guide pipe (17) and then flow downwards along the test steel wire (20) to enter the liquid collection funnel (18);
one end of the positive electrode lead (14) is connected with the positive electrode of the direct-current stabilized voltage power supply (13), the other end of the positive electrode lead is connected with the test steel wire (20), one end of the negative electrode lead (15) is connected with the negative electrode of the direct-current stabilized voltage power supply (13), the other end of the negative electrode lead is inserted into the first guide pipe (17) and is contacted with a corrosive medium, the negative electrode lead (15) is hermetically connected with the first guide pipe (17), and the negative electrode lead (15) extends out of the first guide pipe (17) and is not contacted with the test steel wire (20).
2. A steel wire corrosion wear coupled fatigue test apparatus according to claim 1, wherein said corrosive medium (16) is 3.5% NaCl.
3. The steel wire corrosion wear coupling fatigue test device of claim 1, wherein a second conduit (181) is communicated with the lower part of the liquid collection funnel (18), and a second liquid storage cylinder (182) is arranged below the second conduit (181).
4. The steel wire corrosion wear coupling fatigue test device of claim 1, characterized in that, the fatigue test machine includes base and crossbeam (4), be equipped with the stand (3) of symmetric distribution between base and crossbeam (4), be equipped with lower chuck (2) on the base, the below of crossbeam (4) is equipped with chuck (1), test steel wire (20) have been placed between lower chuck (2) and last chuck (1), lower chuck (2) and last chuck (1) are tight the both ends of test steel wire (20) respectively, be equipped with driving piece (40) between crossbeam (4) and chuck (1), driving piece (40) drive chuck (1) reciprocating motion, it takes place fatigue to drive test steel wire (20) reciprocating elongation.
5. The steel wire corrosion wear coupling fatigue test device of claim 4, characterized in that the lateral force loading module comprises symmetrically distributed horizontal bearing tables (9), the horizontal bearing tables (9) are respectively installed and fixed on the two columns (3), the two horizontal bearing tables (9) are horizontally aligned to each other, a sliding support plate (8) is arranged between the horizontal bearing tables (9), first symmetrically distributed waist-shaped holes (31) are formed in the sliding support plate (8), second waist-shaped holes (30) are formed in the sliding support plate (8), the test steel wire (20) passes through the second waist-shaped holes (30), symmetrically distributed threaded holes (32) are formed between the second waist-shaped holes (30) and the first waist-shaped holes (31) on one side, and the sliding support plate (8) is installed and fixed on the horizontal bearing tables (9) through a screw rod passing through the first waist-shaped holes (31).
6. The steel wire corrosion wear coupling fatigue test device according to claim 5, wherein the sliding support plate (8) is provided with symmetrically distributed support plates (7), the support plates (7) are provided with sliding grooves and guiding support columns, loading blocks (5) are arranged between the support plates (7), the loading blocks (5) are positioned in the sliding grooves, and the loading blocks (5) are provided with first loading steel wires (21 a).
7. The steel wire corrosion wear coupling fatigue test device according to claim 6, wherein the loading block (5) comprises a loading block body (28), second fixing screws (281) are symmetrically distributed on the loading block body (28), the two ends of the loading block body (28) are respectively provided with a draw bar (29), the loading block body (28) is provided with a first semi-cylindrical channel (282), the first loading steel wire (21a) is positioned in the first semi-cylindrical channel (282) and is clamped and fixed through the second fixing screws (281).
8. The steel wire corrosion wear coupling fatigue test device according to claim 7, wherein the sliding support plate (8) is provided with symmetrically distributed bolts (12), the bolts (12) are fixed on the sliding support plate (8) through threaded holes (32), the bolts (12) are provided with fixing nuts, the bolts (12) are provided with support blocks (6), the support blocks (6) are provided with second loading steel wires (21b), and the bolts (12) are rotated to adjust the heights of the support blocks (6) so that the first loading steel wires (21a) and the second loading steel wires (21b) are located at the same height.
9. The steel wire corrosion wear coupling fatigue test device according to claim 8, wherein the support block (6) comprises a support block main body (61), the support block main body (61) is provided with symmetrically distributed mounting holes (62), the support block main body (61) is sleeved on the bolt (12) through the mounting holes (62) and fixed through a nut, the support block main body (61) is provided with a connecting piece (25), the support block main body (61) is provided with an angle adjusting disc (23), the angle adjusting disc (23) is provided with a through hole (231), the angle adjusting disc (23) is provided with symmetrically distributed arc-shaped grooves (27), the connecting piece (25) is positioned in the through hole (231), one end of the connecting piece (25) is fixedly connected with the support block main body (61), the other end is rotatably provided with a support block body (22), the support block body (22) is rotatably provided with symmetrically distributed limiting fixing screws (63), spacing clamping screw (63) pass circular arc groove (27) and are rotated with support block (22) and be connected, be equipped with first clamping screw (24) of symmetric distribution on support block (22), be equipped with second semi-cylindrical channel (26) on support block (22), second loading steel wire (21b) are located second semi-cylindrical channel (26) and carry out the block through first clamping screw (24) and fix, through rotating support block (22), it fixes to rotate spacing clamping screw (63), adjust the angle of second loading steel wire (21 b).
10. The steel wire corrosion wear coupling fatigue test device according to claim 8, wherein the support blocks (6) are adjusted to change angles among the steel wires, the test steel wires (20) are located between the adjustment support blocks (6) and the loading blocks (5), the traction rods (29) are provided with the traction ropes (11), the traction ropes (11) are guided and supported through the guide support columns, one ends of the traction ropes (11) are fixedly connected with the traction rods (29), the other ends of the traction ropes are provided with the mass blocks (10), the loading blocks (5) and the sliding support plates (8) are driven to slide in opposite directions under the action of gravity of the mass blocks (10), and the first loading steel wires (21a) and the second loading steel wires (21b) extrude the test steel wires (20) mutually to provide lateral force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011579256.4A CN112504819B (en) | 2020-12-28 | 2020-12-28 | Steel wire corrosion wear coupling fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011579256.4A CN112504819B (en) | 2020-12-28 | 2020-12-28 | Steel wire corrosion wear coupling fatigue test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112504819A true CN112504819A (en) | 2021-03-16 |
| CN112504819B CN112504819B (en) | 2022-03-15 |
Family
ID=74951720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011579256.4A Active CN112504819B (en) | 2020-12-28 | 2020-12-28 | Steel wire corrosion wear coupling fatigue test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112504819B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115372243A (en) * | 2022-10-21 | 2022-11-22 | 东营华亚国联航空燃料有限公司 | Copper sheet corrosion test equipment for aviation fuel test |
| CN115962903A (en) * | 2023-03-16 | 2023-04-14 | 廊坊双飞碟簧有限公司 | Disc spring elastic coefficient detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353590A (en) * | 2011-07-13 | 2012-02-15 | 中国矿业大学 | Test method and device for monitoring steel wire fretting fatigue state |
| CN104614261A (en) * | 2015-01-30 | 2015-05-13 | 中国矿业大学 | Bending fatigue damage monitoring system for steel wire under action of corrosion-alternating load coupling |
| CN105588750A (en) * | 2016-02-19 | 2016-05-18 | 中国矿业大学 | Multiaxis fretting corrosion fatigue damage monitoring device and multiaxis fretting corrosion fatigue damage monitoring method for kilometer deep shaft hoisting rope |
| CN105823696A (en) * | 2016-05-26 | 2016-08-03 | 中国矿业大学 | Ultra-deep vertical shaft winding type hoisting steel cable multi-axial friction fatigue damage monitoring device and method |
| CN106290035A (en) * | 2016-07-18 | 2017-01-04 | 中国矿业大学 | Extra deep shaft drum winding steel wire rope fretting corrosion fatigue damage detection device and method |
| CN107478526A (en) * | 2017-07-13 | 2017-12-15 | 东南大学 | The experimental rig and method in steel wire life-span are determined under corrosion fatigue coupling |
| CN110044740A (en) * | 2019-04-22 | 2019-07-23 | 东南大学 | Measuring method, application, device and the fixture of cable steel wire corrosion fatigue damage rule |
-
2020
- 2020-12-28 CN CN202011579256.4A patent/CN112504819B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353590A (en) * | 2011-07-13 | 2012-02-15 | 中国矿业大学 | Test method and device for monitoring steel wire fretting fatigue state |
| CN104614261A (en) * | 2015-01-30 | 2015-05-13 | 中国矿业大学 | Bending fatigue damage monitoring system for steel wire under action of corrosion-alternating load coupling |
| CN105588750A (en) * | 2016-02-19 | 2016-05-18 | 中国矿业大学 | Multiaxis fretting corrosion fatigue damage monitoring device and multiaxis fretting corrosion fatigue damage monitoring method for kilometer deep shaft hoisting rope |
| CN105823696A (en) * | 2016-05-26 | 2016-08-03 | 中国矿业大学 | Ultra-deep vertical shaft winding type hoisting steel cable multi-axial friction fatigue damage monitoring device and method |
| CN106290035A (en) * | 2016-07-18 | 2017-01-04 | 中国矿业大学 | Extra deep shaft drum winding steel wire rope fretting corrosion fatigue damage detection device and method |
| CN107478526A (en) * | 2017-07-13 | 2017-12-15 | 东南大学 | The experimental rig and method in steel wire life-span are determined under corrosion fatigue coupling |
| CN110044740A (en) * | 2019-04-22 | 2019-07-23 | 东南大学 | Measuring method, application, device and the fixture of cable steel wire corrosion fatigue damage rule |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115372243A (en) * | 2022-10-21 | 2022-11-22 | 东营华亚国联航空燃料有限公司 | Copper sheet corrosion test equipment for aviation fuel test |
| CN115962903A (en) * | 2023-03-16 | 2023-04-14 | 廊坊双飞碟簧有限公司 | Disc spring elastic coefficient detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112504819B (en) | 2022-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112504819B (en) | Steel wire corrosion wear coupling fatigue test device | |
| CN101598647B (en) | Steel wire fretting fatigue testing machine and method | |
| CN102353590B (en) | Test method and device for monitoring steel wire fretting fatigue state | |
| CN107843422B (en) | Fatigue test device and method capable of applying axial pretension | |
| CN110646281B (en) | Tensile testing machine suitable for low cycle fatigue test | |
| CN201497672U (en) | Steel wire micro-motion fatigue tester | |
| CN109759763A (en) | A kind of bearing shell automatic soldering device and method | |
| CN105067238A (en) | Elastic component large-load fatigue test device, test method and installation method | |
| CN112666007A (en) | Steel wire rope bending fatigue testing device and testing method | |
| CN113138115A (en) | Full-size marine pipeline resonance rotary bending fatigue testing machine | |
| CN202256052U (en) | Tester for monitoring fretting fatigue state of steel wire | |
| CN109724782B (en) | Strength test testing device | |
| CN202974605U (en) | Rolling linear guide rail pair static stiffness measuring device | |
| CN204740133U (en) | Big load fatigue test device of elastic element | |
| CN113340747A (en) | Anchor rod shearing testing device and method | |
| CN112229725B (en) | Vibration-free material tensile testing machine | |
| CN211374305U (en) | Wear-resisting testing arrangement that wipes | |
| CN210141952U (en) | Glass-frame riser wire rope tensile force automatic checkout device | |
| CN211146044U (en) | Hoisting device with function of lubricating underground steel wire rope | |
| CN112279035A (en) | Novel speed limiter steel wire rope lifting device | |
| CN201165440Y (en) | Steel-rope guide suspension and tension monitoring apparatus | |
| CN114047070A (en) | A test device for testing wire rope performance | |
| CN219348172U (en) | Automobile seat lifting screw rod tester | |
| CN218546404U (en) | Steel wire rope bending fatigue testing device | |
| CN219369396U (en) | Pressure and shear force testing mechanism of pressure shear testing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |