CN106289759A - The fretting corrosion fatigue experimental device of a kind of heavy duty drag conveyor round-link chain and method - Google Patents
The fretting corrosion fatigue experimental device of a kind of heavy duty drag conveyor round-link chain and method Download PDFInfo
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- CN106289759A CN106289759A CN201610566788.1A CN201610566788A CN106289759A CN 106289759 A CN106289759 A CN 106289759A CN 201610566788 A CN201610566788 A CN 201610566788A CN 106289759 A CN106289759 A CN 106289759A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/023—Power-transmitting endless elements, e.g. belts or chains
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention discloses a kind of fretting corrosion fatigue experimental device and the method for heavy duty drag conveyor round-link chain, including with lower module: simulated loading system applies dynamic tension and shock loading by electric cylinder and shock plate to round-link chain；Middle part channel mould is intended case by fan and PCT electric heater and is internally heated by simulation heating system；Simulation friction system drives the slip of intermediate channel simulation box that round-link chain is applied frictional force by electric cylinder；Simulation etching system realizes by adding corrosive medium in intermediate channel simulation box；Monitoring system realizes monitoring the dynamic tension of round-link chain, frictional force, shock loading, temperature, corrosion wear rate and fatigue life by plate hoop tensile force sensor, three-dimensional force sensor, temperature sensor, temperature control box, auxiliary electrode, working electrode, reference electrode and electrochemical workstation, easy to operate, and measurement result is comprehensively reliable, the safe and reliable operation of heavy duty drag conveyor round-link chain in complicated running environment had important directive significance.
Description
Technical field
The present invention relates to mining industry technical field, the fretting corrosion being specifically related to a kind of heavy duty drag conveyor round-link chain is tired
Assay device and method.
Background technology
Combining the technology of adopting is current state-of-the-art mining Technology Underground, and drag conveyor is one of crucial fully-mechanized mining equipment,
It not only plays Coal Transport effect, is also the operation track of coal-winning machine simultaneously.Along with the comprehensive development adopting technology, Yi Jikuang
The maximization of well and deep layer, drag conveyor constantly develops to haul distance high-power, long and high chain speed direction, i.e. heavy duty scraper plate
Conveyer.Once heavy duty drag conveyor is because of malfunction and failure, will cause the stopping production of coal-face, and then cause large coal mine
Heavy economic losses.
As the important component part of drag conveyor haulage gear, round-link chain is under dynamic load and shock loading operating mode,
Chaindriven polygon effect causes chain speed to change, and then causes the dynamic loading that inertia causes；In drag conveyor running
Loads change (unloaded, fully loaded or overload) also can cause the dynamic loading on round-link chain；During coal mining, coal cinder falls at round-link chain
On, causing shock loading or the card chain of round-link chain, these all will cause round-link chain to bear dynamic loading and shock loading.Dynamic loading
Effect causes the tight chain of round-link chain, the alternating nature of pine chain, causes the fretting wear of flat ring-vertical interannular；Round-link chain is in intermediate channel
During conveying material, between round-link chain and coal dust, intermediate channel three, form three-body-abrasion；Because of dynamic load between annulus chain and sprocket
Also there is friction and wear characteristic in characteristic, therefore the dynamic loading of alternation and shock loading and the common effect of fretting wear, can lead
Cause the fatigue under scrubbing damage of round-link chain.Along with the increase of the mine degree of depth, particularly when well depth reaches km rank, heavy duty scraper plate
Conveyer would operate under hot environment, and the hydrops that intermediate channel also exists and coal and the mine gas being dissolved in water mix
Thing will produce electrochemical corrosion, the abrasion of aggravation round-link chain to round-link chain.Therefore, heavy duty drag conveyor round-link chain rubs
Corrosion fatigue phenomenon, can cause round-link chain to rupture time serious.According to statistics, the drag conveyor of 41.5% is shut down is due to round-link chain
Chain rupture causes.Therefore, research deep-well heavy duty drag conveyor annulus under high-temperature corrosion environment, dynamic load and shock loading operating mode
The corrosion wear rate of chain and the fatigue life of the great significance for design to heavy duty drag conveyor.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of heavy duty drag conveyor circle
The fretting corrosion fatigue experimental device of loop chain and method, the friction under working environment of the simulation heavy duty drag conveyor round-link chain is rotten
Erosion fatigue behaviour, the simultaneously dynamic tension on dynamic monitoring round-link chain, frictional force, shock loading, temperature, corrosion wear rate and tired
In the labor life-span, to solve the deficiencies in the prior art, easy to operate, measurement result is the most reliable.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of heavy duty drag conveyor round-link chain fretting corrosion fatigue experimental device, including pedestal, simulated loading system,
Simulation heating system, simulation friction system, simulation etching system, monitoring system；
Wherein, described pedestal includes base, three short columns, four support posts, two crossbeams, support platforms；Wherein
Three short columns are respectively the first short column, the second short column, the 3rd short column, and wherein the first short column, the second short column divide
Not being fixed on the two ends of base, the 3rd short column is fixed on the middle part of base；Four support posts are fixed on base, rectangular
Arranging, four support posts are respectively the summit of this rectangle；Two crossbeams are fixed on four support post upper ends and form rectangle
Article two, long limit, support platform is fixed on two crossbeams；
Described simulated loading system includes simulating fatigue load loaded system and simulation shock loading loading system；
Simulation fatigue load loaded system include the first electric cylinder, two plate hoop tensile force sensors, U-bolt, two straight
Bar suspension hook and round-link chain, wherein U-bolt is fixed on the second short column, and the first electric cylinder is fixed on the first short column, and
Connecting by connecting ring and a plate hoop tensile force sensor, another plate hoop tensile force sensor is by connecting ring and U-bolt phase
Even, the two ends of round-link chain are connected with two plate hoop tensile force sensors respectively by two straight-bar suspension hooks；
Simulation shock loading loading system includes the second electric cylinder and shock plate, and wherein the second electric cylinder is fixed on to support and puts down
On platform, being provided with intermediate channel simulation box below the second electric cylinder, round-link chain runs through whole intermediate channel simulation box, and annulus from both sides
Chain and the contacts baseplate of intermediate channel simulation box；The piston rod of the second electric cylinder stretches in intermediate channel simulation box, and shock plate level is solid
Being scheduled on the piston rod end of the second electric cylinder, the bottom surface of shock plate contacts with round-link chain, by shock plate to round-link chain apply to
Under shock loading；
Described simulation heating system includes two U-shaped steel, two fans, two PCT electric heaters, temperature sensor and temperature
Control case, Open Side Down respectively is buckled in the top of intermediate channel simulation box and fixes for the U-shaped steel of two of which, and stays between two U-shaped steel
Have vacant position；Being provided with square hole in the middle part of two U-shaped steel, two fans are individually fixed at the square hole on two U-shaped steel, two PCT electricity
Heater is individually fixed on two fans, makes the air after heating enter in intermediate channel simulation box；Temperature sensor is fixed on
On the inwall of intermediate channel simulation box, PCT electric heater and temperature sensor are connected with temperature control box by electric wire, pass through closed loop control
The high-temperature work environment of simulation round-link chain；
Described simulation friction system includes two closed slides being fixed on base, two cunnings suitable with guide rail
Block, gripper shoe, four three-dimensional force sensors, intermediate channel simulation box and the 3rd electric cylinder, wherein gripper shoe is fixed on two slide blocks
On, the bottom of intermediate channel simulation box by with being fastened in gripper shoe of four three-dimensional force sensors；3rd electric cylinder is solid
Being scheduled on the 3rd short column, the piston rod end of the 3rd electric cylinder is connected with gripper shoe, thus band movable slider, gripper shoe and middle part
Groove simulation box slides along the one of guide rail；
Described simulation etching system includes rubber sealing device and is placed in the corrosive medium in intermediate channel simulation box, wherein rotten
The liquid level of erosion medium is less than temperature sensor, and rubber sealing device is arranged on the opening part within intermediate channel simulation box；Intermediate channel
Corrosive medium in the base plate of simulation box and intermediate channel simulation box and round-link chain form three body frictions；
Described monitoring system includes two plate hoop tensile force sensors, four three-dimensional force sensors, temperature sensor, temperature controls
Case, auxiliary electrode, working electrode, reference electrode, electrochemical workstation and computer memory device, wherein reference electrode is saturated
Calomel electrode, is placed in outside corrosive medium；Auxiliary electrode is with the sheet metal of material with intermediate channel simulation box, is placed in corrosive medium
In；Working electrode is the round-link chain being placed in corrosive medium, and auxiliary electrode, working electrode, reference electrode are by wire and electricity
Chem workstation is connected；Two plate hoop tensile force sensors, four three-dimensional force sensors, temperature control box and electrochemical workstation are by number
Data transfer will be measured to computer memory device according to line.
Further, fluted bottom the shock plate in described simulation shock loading loading system, thus prevent round-link chain
Original position is deviateed under impact loading.
Further, for preventing miscellaneous part and round-link chain non-working surface to be corroded, said two straight-bar suspension hook surface, punching
Hit plate surface, temperature sensor surface, intermediate channel simulation box inwall all scribble corrosion-resistant glue.
Further, described pedestal includes that clothes closet, clothes closet are arranged on base and are placed with temperature control box, electrochemistry on clothes closet
Work station.
Further, described simulation heating system includes two cover plates, and two cover plates cover the two ends of intermediate channel simulation box,
And be connected with intermediate channel simulation box by hinge, for being incubated to intermediate channel simulation box.
Further, described corrosive medium is coal dust and electrolyte corrosion solution mixture.
The fretting corrosion fatigue test method of a kind of heavy duty drag conveyor round-link chain, comprises the following steps:
A () adds corrosive medium in intermediate channel simulation box；
B () opens PTC electric heater and fan, close the cover plate above intermediate channel simulation box, intends middle part channel mould in case
Portion heats, and starts temperature control box simultaneously, makes intermediate channel simulation box internal temperature keep constant；
C () controls the piston rod of the first electric cylinder in simulation fatigue load loaded system and shrinks, round-link chain is applied pretension
Power, stops piston rod and shrinks when the registration on the plate hoop tensile force sensor at round-link chain two ends reaches initial set value；Then lead to
Cross computer and control the flexible of the first electric cylinder, it is achieved the applying of dynamic tension on round-link chain；
D () by after four three-dimensional force sensors zeroing below intermediate channel simulation box, starts the in simulation friction system
Three electric cylinders, promote intermediate channel simulation box to do reciprocating linear motion by setting speed；Simulation shock loading is controlled by computer
The second electric cylinder in loading system, applies shock loading by shock plate to round-link chain；
E () is by the registration value on two plate hoop tensile force sensors of record, it is achieved the dynamic tension monitoring on round-link chain；Pass through
Record the registration value on four three-dimensional force sensors, it is achieved the frictional force on round-link chain and shock loading monitoring；Utilize electrification
After work station measures interelectrode electric current density or electrode potential, related software the electrochemistry being calculated round-link chain is rotten
Erosion speed, thus realize the monitoring of round-link chain corrosion wear rate；By temperature sensor and temperature control box, it is achieved to intermediate channel
Monitoring temperature in simulation box；By the first electric cylinder, the second electric cylinder, the 3rd electric cylinder during record round-link chain chain rupture to annulus
The dynamic load of chain loads number of times, it is achieved monitoring fatigue life of round-link chain.
Change the push-and-pull speed of electric cylinder, the size of electric cylinder loading force and frequency, each component density of corrosive medium, temperature control
Temperature set by case can realize the different speed of service, different dynamic load, different impact, differentiated friction etching condition and difference
Round-link chain fretting corrosion fatigue monitoring under temperature case.
Beneficial effect: what the present invention provided realizes the fretting corrosion fatigue test dress of a kind of heavy duty drag conveyor round-link chain
Put and method can simulate heavy duty drag conveyor round-link chain fretting corrosion fatigue behaviour under working environment, the most dynamically prison
Survey dynamic tension, frictional force, shock loading, temperature, corrosion wear rate and the fatigue life on round-link chain, thus realize heavy duty and scrape
The quantitatively characterizing of plate conveyer round-link chain fretting corrosion fatigue damage and biometry, defeated to heavy duty scraper plate in complicated running environment
The safe and reliable operation sending machine round-link chain has important directive significance.The present invention solves the deficiencies in the prior art, operation side
Just, and intuitive measurement results, comprehensively, reliable.
Accompanying drawing explanation
Fig. 1 is that the main TV structure of the fretting corrosion fatigue experimental device of the present invention a kind of heavy duty drag conveyor round-link chain shows
It is intended to；
Fig. 2 is the A A cross section of the fretting corrosion fatigue experimental device of the present invention a kind of heavy duty drag conveyor round-link chain
Figure；
Fig. 3 is the B B-section of the fretting corrosion fatigue experimental device of the present invention a kind of heavy duty drag conveyor round-link chain
Figure；
Fig. 4 is the middle part channel mould in the fretting corrosion fatigue experimental device of the present invention a kind of heavy duty drag conveyor round-link chain
Intend case top view；
Figure includes: 1, base, the 2, first short column, the 3, second short column, 4, support post, 5, crossbeam, and the 6, second electricity
Dynamic cylinder, 7, U-bolt, 8, clothes closet, 9, plate hoop tensile force sensor, 10, straight-bar suspension hook, the 11, second electric cylinder, 12, shock plate,
13, PCT electric heater, 14, fan, the 15, the 3rd short column, the 16, the 3rd electric cylinder, 17, guide rail, 18, slide block, 19, intermediate channel
Simulation box, 20, hinge, 21, electrochemical workstation, 22, temperature control box, 23, round-link chain, 24, gripper shoe, 25, three-dimensional force sensor,
26, rubber sealing device, 27, support platform, 28, temperature sensor, 29, corrosive medium, 30, auxiliary electrode, 31, work electricity
Pole, 32, reference electrode, 33, U-shaped steel, 34, cover plate, 35, unwrapping wire hole
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
It is illustrated in figure 1 the fretting corrosion fatigue experimental device of a kind of heavy duty drag conveyor round-link chain, including pedestal, mould
Intend loading system, simulation heating system, simulation friction system, simulation etching system, monitoring system；
Wherein, described pedestal includes 1, three short columns of base, four support posts 4, two crossbeams 5, support platforms 27
And clothes closet 8；Wherein three short columns are respectively first short column the 2, second short column 15 of short column the 3, the 3rd, and wherein first is short vertical
Post the 2, second short column 3 is separately fixed at the two ends of base 1, and the 3rd short column 15 is fixed on the middle part of base 1；Four support vertical
Post 4 is fixed on base 1, rectangular layout, and four support posts 4 are respectively the summit of this rectangle；Two crossbeams 5 pass through bolt
Being fixed on four support posts 4 two the long limits forming rectangle, support platform 27 is secured by bolts on crossbeam 5, clothes closet 8
It is placed on base 1, and on clothes closet 8, is placed with temperature control box 22 and electrochemical workstation 21.
Described simulated loading system includes simulating fatigue load loaded system and simulation shock loading loading system；
Simulation fatigue load loaded system includes 6, two plate hoop tensile force sensors 9 of the first electric cylinder, U-bolt 7, two
Straight-bar suspension hook 10 and round-link chain 23, wherein U-bolt 7 is fixed on the second short column 3, and it is short that the first electric cylinder 6 is fixed on first
On column 2, and connecting by connecting ring and a plate hoop tensile force sensor 9, another plate hoop tensile force sensor 9 is by connecting ring
Being connected with U-bolt 7, the two ends of round-link chain 23 are connected with two plate hoop tensile force sensors 9 respectively by two straight-bar suspension hooks 10；
Simulation shock loading loading system includes the second electric cylinder 11 and shock plate 12, and wherein the second electric cylinder 11 passes through spiral shell
Bolt is fixed in support platform 27, is provided with intermediate channel simulation box 19 below the second electric cylinder 11, and round-link chain 23 runs through from both sides
Whole intermediate channel simulation box 19, and the contacts baseplate of round-link chain 23 and intermediate channel simulation box 19；The piston rod of the second electric cylinder 11
Stretching in intermediate channel simulation box 19, shock plate 12 is horizontally fixed on the piston rod end of the second electric cylinder 11, the end of shock plate 12
Face contacts with round-link chain 23；Bottom shock plate 12 in described simulation shock loading loading system fluted.
As shown in Figure 4, described simulation heating system includes two U-shaped steel, 14, two PCT electric heaters of 33, two fans
13, temperature sensor 28, temperature control box 22 and two cover plates 34, the U-shaped steel of two of which 33 Open Side Down respectively be buckled in middle part channel mould
Intend the top of case 29 and be bolted, and leaving room between two U-shaped steel 33；It is provided with square hole in the middle part of two U-shaped steel 33,
Two fans 14 are individually fixed at the square hole of two U-shaped steel 33 by screw, and two PCT electric heaters 13 are by screw respectively
It is fixed on two fans 14；Temperature sensor 28 is fixed on the inwall of intermediate channel simulation box 19, PCT electric heater 13 and temperature
Degree sensor 28 is connected with temperature control box 22 by electric wire；Two cover plates 34 cover the two ends of intermediate channel simulation box 19 and pass through hinge
20 are connected with intermediate channel simulation box 19.
As in figure 2 it is shown, described simulation friction system includes two closed slides being fixed on base 17, two and guide rail
Slide block 18,24, four three-dimensional force sensors 25 of gripper shoe, intermediate channel simulation box 19 and the 3rd electric cylinder 16 that 17 match, its
Middle gripper shoe 24 by with being fastened on slide block 18 of angle steel, the bottom of intermediate channel simulation box 19 by with four three-dimensional force
Being fastened in gripper shoe 24 of sensor 25；3rd electric cylinder 16 is fixed on the 3rd short column 15, the 3rd electric cylinder 16
Piston rod end be connected with gripper shoe 24 by angle steel.
As it is shown on figure 3, described simulation etching system includes rubber sealing device 26 and is placed in intermediate channel simulation box 19
Corrosive medium 29, wherein rubber sealing device 26 is arranged on the opening part within intermediate channel simulation box 19, and corrosive medium 29 is coal
Powder and electrolyte corrosion solution mixture, the liquid level of corrosive medium 29 is less than temperature sensor 28；Said two straight-bar suspension hook 10
Surface, shock plate 12 surface, temperature sensor 28 surface, intermediate channel simulation box 19 inwall all scribble corrosion-resistant glue.
Described monitoring system include 9, four three-dimensional force sensors 25 of two plate hoop tensile force sensors, temperature sensor 28,
Temperature control box 22, auxiliary electrode 30, working electrode 31, reference electrode 32, electrochemical workstation 21 and computer memory device, wherein
Reference electrode 32 is saturated calomel electrode, is placed in corrosive medium 29 outside；Auxiliary electrode 30 is material same with intermediate channel simulation box
Sheet metal, be placed in corrosive medium 29；Working electrode 31 is the round-link chain 23 being in corrosive medium, and auxiliary electrode 30,
Working electrode 31, reference electrode 32 are connected with electrochemical workstation 21 by wire；Two plate hoop tensile force sensors 9, four three
Dimensional force sensor 25, temperature control box 22 and electrochemical workstation 21 will measure data transfer to computer memory device by data wire
On；The electric wire of temperature sensor 28, temperature control box 22, auxiliary electrode 30 and working electrode 31 is by the unwrapping wire hole on a side cover plate 34
35 put into intermediate channel simulation box 19.
The fretting corrosion fatigue test method of a kind of heavy duty drag conveyor round-link chain, comprises the following steps:
A () adds corrosive medium 29 in intermediate channel simulation box 19；
B () opens PTC electric heater 13 and fan 14, close the cover plate 34 above intermediate channel simulation box 19, to intermediate channel
Simulation box 19 is internally heated, and starts temperature control box 22 and temperature sensor 28 simultaneously, makes intermediate channel simulation box 19 internal temperature
Keep constant；
C () controls the piston rod of the first electric cylinder 6 in simulation fatigue load loaded system and shrinks, apply pre-to round-link chain 23
Clamp force, stops piston rod and shrinks when the registration on the plate hoop tensile force sensor 9 at round-link chain 23 two ends reaches initial set value；So
The flexible of the first electric cylinder 6 is controlled afterwards, it is achieved the applying of dynamic tension on round-link chain 23 by computer；
D four three-dimensional force sensors 25 below intermediate channel simulation box 19 are returned to zero by () after, start in simulation friction system
The 3rd electric cylinder 16, by setting speed promote intermediate channel simulation box 19 do reciprocating linear motion；Simulation is controlled by computer
The second electric cylinder 11 in shock loading loading system, applies shock loading by shock plate 12 to round-link chain 23；
E () is by the registration value on two plate hoop tensile force sensors 9 of record, it is achieved the dynamic tension monitoring on round-link chain 23；
By the registration value on four three-dimensional force sensors 25 of record, it is achieved the frictional force on round-link chain 23 and shock loading monitoring；
After utilizing electrochemical workstation 21 to measure interelectrode electric current density or electrode potential, related software it is calculated round-link chain
The Electrochemical corrosion rate of 23, thus realize the monitoring of round-link chain 23 corrosion wear rate；By temperature sensor 28 and temperature
Control case 22, it is achieved middle part channel mould is intended the monitoring temperature in case 19；By the first electric cylinder 6 during record round-link chain 23 chain rupture, the
Two electric cylinder the 11, the 3rd electric cylinders 16 load number of times to the dynamic load of round-link chain 23, it is achieved monitoring fatigue life of round-link chain 23.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. the fretting corrosion fatigue experimental device of a heavily loaded drag conveyor round-link chain, it is characterised in that include pedestal, simulation
Loading system, simulation heating system, simulation friction system, simulation etching system, monitoring system；
Wherein, described pedestal includes base (1), three short columns, four support posts (4), two crossbeams (5), support platforms
(27)；Wherein three short columns are respectively the first short column (2), the second short column (3) and the 3rd short column (15), and first is short vertical
Post (2), the second short column (3) are fixed on the two ends of base (1), and the 3rd short column (15) is fixed on the middle part of base (1)；Four
Support post (4) is fixed on base (1), rectangular layout, and four support posts (4) are respectively the summit of this rectangle；Two
Crossbeam (5) is fixed on four support post (4) upper ends and forms two long limits of rectangle, and support platform (4) is fixed on two crossbeams
(5) on；
Described simulated loading system includes simulating fatigue load loaded system and simulation shock loading loading system；
Simulation fatigue load loaded system includes the first electric cylinder (6), two plates hoop tensile force sensor (9), U-bolt (7), circles
Loop chain (23) and two straight-bar suspension hooks (10), wherein U-bolt (7) is fixed on the second short column (3)；First electric cylinder (6)
It is fixed on the first short column (2), and connects by connecting ring and plate hoop tensile force sensor (9), another plate hoop tensile force
Sensor (9) is connected with U-bolt (7) by connecting ring, and the two ends of round-link chain (23) are by two straight-bar suspension hooks (10) respectively
It is connected with two plates hoop tensile force sensor (9)；
Simulation shock loading loading system includes the second electric cylinder (11) and shock plate (12), and wherein the second electric cylinder (11) is fixed
In support platform (27), the second electric cylinder (11) lower section is provided with intermediate channel simulation box (19), and round-link chain (23) passes through from both sides
Wear whole intermediate channel simulation box (19), and the contacts baseplate of round-link chain (23) and intermediate channel simulation box (19)；Second electric cylinder
(11) piston rod stretches in intermediate channel simulation box (19), and shock plate (12) is horizontally fixed on the piston rod of the second electric cylinder (11)
End, the bottom surface of shock plate (12) contacts with round-link chain (23)；
Described simulation heating system includes that two U-shaped steel (33), two fans (14), two PCT electric heaters (13), temperature pass
Sensor (28), temperature control box (22), Open Side Down is buckled in the top of intermediate channel simulation box (19) solid for the U-shaped steel of two of which (33)
Fixed, and leave room between two U-shaped steel (33)；Two U-shaped steel (33) middle parts are provided with square hole, and two fans (14) are fixed respectively
At square hole on two U-shaped steel (33), two PCT electric heaters (13) are individually fixed on two fans (14)；Temperature passes
Sensor (28) is fixed on the inwall of intermediate channel simulation box (19), and PCT electric heater (13) and temperature sensor (28) are by electricity
Line is connected with temperature control box (22)；
Described simulation friction system include two closed slides being fixed on base (17), two suitable with guide rail (17)
Slide block (18), gripper shoe (24), four three-dimensional force sensors (25), intermediate channel simulation box (19) and the 3rd electric cylinder (16), its
Middle gripper shoe (24) is fixed on slide block (18), the bottom of intermediate channel simulation box (19) by with four three-dimensional force sensors (25)
Be fastened in gripper shoe (24)；3rd electric cylinder (16) is fixed on the 3rd short column (15), the 3rd electric cylinder (16)
Piston rod end be connected with gripper shoe (24)；
Described simulation etching system includes rubber sealing device (26) and is placed in the corrosive medium in intermediate channel simulation box (19)
(29), the opening part in wherein rubber sealing device (26) is arranged on intermediate channel simulation box (19), the liquid level of corrosive medium (29)
Less than temperature sensor (28)；
Described monitoring system includes two plates hoop tensile force sensor (9), four three-dimensional force sensors (25), temperature sensors
(28), temperature control box (22), auxiliary electrode (30), working electrode (31), reference electrode (32), electrochemical workstation (21) and calculating
Machine storage device, wherein reference electrode (32) is saturated calomel electrode, is placed in corrosive medium (29) outside；Auxiliary electrode (30) is
With intermediate channel simulation box (19) with the sheet metal of material, it is placed in corrosive medium (29)；Working electrode (31) is situated between for being placed in corrosion
Round-link chain (23) in matter (29), and auxiliary electrode (30), working electrode (31), reference electrode (32) are by wire and electrochemistry
Work station (21) is connected；Two plates hoop tensile force sensor (9), four three-dimensional force sensors (25), temperature control box (22) and electrochemistry
Work station (21) will measure data transfer to computer memory device by data wire.
The fretting corrosion fatigue experimental device of a kind of heavy duty drag conveyor round-link chain the most according to claim 1, it is special
Levying and be, shock plate (12) bottom in described simulation shock loading loading system is fluted.
The fretting corrosion fatigue experimental device of a kind of heavy duty drag conveyor round-link chain the most according to claim 1, it is special
Levy and be, said two straight-bar suspension hook (10) surface, shock plate (12) surface, temperature sensor (28) surface, intermediate channel simulation
Case (19) inwall all scribbles corrosion-resistant glue.
The fretting corrosion fatigue experimental device of a kind of heavy duty drag conveyor round-link chain the most according to claim 1, it is special
Levying and be, described pedestal includes that clothes closet (8), clothes closet (8) are placed in base (1) and above and are placed with temperature control box (22), electricity on clothes closet (8)
Chem workstation (21).
The fretting corrosion fatigue experimental device of a kind of heavy duty drag conveyor round-link chain the most according to claim 1, it is special
Levying and be, described simulation heating system includes that two cover plates (34), two cover plates (34) cover the two of intermediate channel simulation box (19)
End, and be connected with intermediate channel simulation box (19) by hinge (20).
The fretting corrosion fatigue experimental device of a kind of heavy duty drag conveyor round-link chain the most according to claim 1, it is special
Levying and be, described corrosive medium (29) is coal dust and electrolyte corrosion solution mixture.
7. the fretting corrosion fatigue test method of a heavily loaded drag conveyor round-link chain, it is characterised in that comprise the following steps:
A () adds corrosive medium (29) in intermediate channel simulation box (19)；
B () opens PTC electric heater (13) and fan (14), close the cover plate (34) of intermediate channel simulation box (19) top, centering
Portion's groove simulation box (19) is internally heated, and makes middle part by the closed loop control of temperature control box (22) and temperature sensor (28) simultaneously
Groove simulation box (19) internal temperature keeps constant；
C the first electric cylinder (6) piston rod that () controls in simulation fatigue load loaded system shrinks, and applies round-link chain (23) pre-
Clamp force, stops piston when the registration on two plates hoop tensile force sensor (9) at round-link chain (23) two ends reaches initial set value
Bar shrinks；Then the flexible of the first electric cylinder (6) is controlled by computer, it is achieved the applying of the upper dynamic tension of round-link chain (23)；
D (), by after four three-dimensional force sensor (25) zeroings of intermediate channel simulation box (19) lower section, starts in simulation friction system
The 3rd electric cylinder (16), by setting speed promote intermediate channel simulation box (19) do reciprocating linear motion；By computer control
The second electric cylinder (11) in simulation shock loading loading system, applies impact by shock plate (12) to round-link chain (23) and carries
Lotus；
E () is by the registration value on two plates hoop tensile force sensor (9) of record, it is achieved the dynamic tension monitoring on round-link chain (23)；
By the registration value on four three-dimensional force sensors (25) of record, it is achieved the frictional force on round-link chain (23) and shock loading prison
Survey；After utilizing electrochemical workstation (21) to measure interelectrode electric current density or electrode potential, it is calculated round-link chain (23)
Electrochemical corrosion rate, thus realize the monitoring of round-link chain (23) corrosion wear rate；By temperature sensor (28) and
Temperature control box (22), it is achieved middle part channel mould is intended the monitoring temperature in case (19)；By the first electricity during record round-link chain (23) chain rupture
Dynamic cylinder (6), the second electric cylinder (11), the 3rd electric cylinder (16) load number of times to the dynamic load of round-link chain (23), it is achieved round-link chain
(23) monitoring fatigue life.
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