CN112034024B - In-situ load loading device for electrochemical system - Google Patents
In-situ load loading device for electrochemical system Download PDFInfo
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- CN112034024B CN112034024B CN202011018190.1A CN202011018190A CN112034024B CN 112034024 B CN112034024 B CN 112034024B CN 202011018190 A CN202011018190 A CN 202011018190A CN 112034024 B CN112034024 B CN 112034024B
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000000919 ceramic Substances 0.000 claims abstract description 16
- 210000005056 cell body Anatomy 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000011160 research Methods 0.000 abstract description 4
- 210000004027 cell Anatomy 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003168 insulating cell Anatomy 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
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- Molecular Biology (AREA)
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- General Health & Medical Sciences (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
The invention relates to an in-situ load loading device for an electrochemical system, which comprises a guide rail position adjusting mechanism, a guide rail mechanism, a load applying mechanism and a base; the guide rail position adjusting mechanism is used for realizing the rotation of the guide rail mechanism within the range of 0-90 degrees, and can realize the fixation of the guide rail mechanism, so as to adjust the inclination angle of a workpiece to be tested in the pool body of the load applying mechanism; the load applying mechanism comprises an upper connecting rod, a tank body, a conductive lower pull rod, a pressure sensor and a spiral micrometer; the upper pull rod is fixed at the action end of the ceramic actuator, the upper pull rod and the conductive lower pull rod are respectively connected with the upper end and the lower end of the workpiece to be tested, and the workpiece to be tested is positioned in the tank body. The device realizes the inclination adjustment of the guide rail within the range of 0-90 degrees through the guide rail position adjusting mechanism, adjusts the included angle between the workpiece to be tested and the action direction of the external physical field, so as to research the surface electrochemical properties of the energy materials under the action directions of different physical fields, and has high utilization rate and stronger applicability.
Description
Technical Field
The invention belongs to the technical field of material performance testing equipment, and particularly relates to an in-situ load loading device for an electrochemical system.
Background
Most of the energy materials are applied to complex electrochemical environments, and the electrochemical properties of the materials are different under different load conditions, so that research on the electrochemical properties of the energy materials under dynamic loads can provide theoretical support for the application of the energy materials in the complex environments, and is also an important branch in the field of energy material research.
For material performance research in extremely complex environments, in-situ application of different physical fields can be involved, for example, when the electrochemical performance of the energy material in a magnetic field environment is researched, different magnetic field directions can lead to different charge moving directions of the energy material, and further, the electrochemical performance of the energy material is different. At present, an electromagnet is generally adopted to apply a magnetic field, and the magnetic field acts on an energy material at a fixed angle, so that the charge on the surface of the material can only move along a fixed direction and the electrochemical performance of the surface of the energy material can not be comprehensively reflected; because the weight of the electromagnet is large, the direction of the magnetic field is changed by adjusting the electromagnet, and then the included angle between the magnetic field and the material is adjusted, and the implementation difficulty is large, the in-situ load loading device capable of adjusting the angle of the material and enabling the material to interact with an external physical field is designed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an in-situ load loading device for an electrochemical system.
The technical scheme adopted for solving the technical problems is as follows:
An in-situ load loading device for an electrochemical system is characterized by comprising a guide rail position adjusting mechanism, a guide rail mechanism, a load applying mechanism and a base; the guide rail position adjusting mechanism is used for realizing the rotation of the guide rail mechanism within the range of 0-90 degrees, and can realize the fixation of the guide rail mechanism, so as to adjust the inclination angle of a workpiece to be tested in the pool body of the load applying mechanism;
The load applying mechanism comprises an upper connecting rod, a tank body, a conductive lower pull rod, a pressure sensor and a spiral micrometer; the upper pull rod is fixed at the action end of the ceramic actuator, the upper pull rod and the conductive lower pull rod are respectively connected with the upper end and the lower end of a workpiece to be tested, and the workpiece to be tested is positioned in the tank body; the spiral micrometer is positioned below the tank body and provides an initial load for the workpiece to be tested; the pressure sensor is used for measuring the initial load of the workpiece to be tested;
The pool body comprises a pool body cover, a glass sheet, a fixing piece and an insulating pool body; the tank body is of a tank body structure with openings at the upper end and one side, and one side of the tank body is provided with a liquid inlet and a liquid outlet respectively; the pool body cover is fixed on the pool body; the glass sheet is arranged at the side opening of the tank body through the fixing piece.
The load applying mechanism is arranged on the guide rail mechanism, the guide rail mechanism is connected with the guide rail position adjusting mechanism through a revolute pair, and the guide rail position adjusting mechanism is connected with the base through a revolute pair.
The base comprises a bottom plate, a hinged support, a stand column connecting plate and stand columns; the four end corners of the bottom plate are respectively fixed with a hinged support, and the middle part of the bottom plate is provided with a threaded hole; two stand columns are arranged at one end of the bottom plate at intervals along the short side direction, and mounting holes are formed in the free ends of the stand columns; the stand column connecting plate is sleeved at the free ends of the two stand columns.
The guide rail position adjusting mechanism comprises a swing rod, an L-shaped connecting plate, a swing rod and a seat plate; two sides of one end of the seat board are respectively hinged with one end of each rocker, and the other ends of the two rockers are respectively hinged with two hinged supports at one end of the bottom board; two sides of the other end of the seat plate are respectively hinged with one end of each swing rod, and the other ends of the two swing rods are respectively hinged with two hinged supports at the other end of the bottom plate; the vertical surface of the L-shaped connecting plate is fixedly connected with one end of the seat plate hinged swing rod, and the horizontal surface of the L-shaped connecting plate can be connected with the threaded hole of the bottom plate.
The guide rail position adjusting mechanism further comprises a handle, and the handles are respectively fixed at two ends of one side of the seat board.
The guide rail mechanism comprises a guide rail, a first frame plate, a first locking plate and a second frame plate; the second frame plate is fixed on the side surface of the seat plate and is positioned at one end of the seat plate hinged with the swing rod; two guide rails parallel to the seat plate are fixed on the second frame plate at intervals, and the first frame plate is sleeved at the free ends of the two guide rails; the position of the guide rail close to the free end is provided with a mounting hole; the first locking plate is sleeved on the two guide rails and is close to the second frame plate.
The load applying mechanism further comprises a positioning sleeve, a screw nut, a second locking plate, a sliding plate and a connecting shaft;
The second locking plate and the sliding plate are both arranged on the two guide rails, and the sliding plate is positioned between the second locking plate and the first locking plate; the screw micrometer is fixed on the first locking plate, the screw nut is slidably arranged on the adjusting column of the screw micrometer, and the screw nut is fixedly connected with the sliding plate at the same time; two ends of the pressure sensor are respectively fixedly connected with the second locking plate and the sliding plate; one end of the positioning sleeve is fixedly connected with the second locking plate, and the other end of the positioning sleeve is fixedly connected with one end of the conductive lower pull rod; the other end of the conductive lower pull rod extends into the tank body from the bottom of the tank body and is used for clamping the lower end of the workpiece to be tested; the position of the conductive lower pull rod passing through the tank body is sealed by a sealing plug; the ceramic actuator is fixed in the middle part of a frame plate, one end threaded connection of pull rod is on the action end of ceramic actuator, and the other end passes the cell body lid and stretches into the cell body is internal for the upper end of centre gripping work piece that waits to test.
The side surface of the positioning sleeve is provided with a threaded hole, and the conductive stud is arranged in the threaded hole of the positioning sleeve; one end of the conductive stud, which is positioned in the positioning sleeve, is tightly fixed with the conductive lower pull rod, and one end, which is positioned outside the positioning sleeve, is provided with a working electrode.
The side surface of the middle part of the conductive pull-down rod is provided with an annular groove matched with the conductive stud, and the end part of the conductive stud is in close contact with the annular groove.
The invention also provides a use method of the in-situ load loading device for the electrochemical system, which is characterized by comprising the following specific steps of:
1) Installing a workpiece to be tested: the studs on the first frame plate and the second frame plate are adjusted to lock the guide rail; the guide rail is positioned at the horizontal position by adjusting the guide rail position adjusting mechanism, and the guide rail is fixed with the corresponding upright post through the bolt, so that the guide rail mechanism is fixedly installed at the horizontal position; adjusting the pressing sheets of the upper pull rod and the conductive lower pull rod, fixing the two ends of the workpiece to be tested with the upper pull rod and the conductive lower pull rod, detecting the position of the workpiece to be tested through a level meter, and keeping the workpiece to be tested horizontal;
2) Debugging a workpiece to be tested: the studs on the first locking plate and the second locking plate are adjusted, so that the two locking plates can slide on the guide rail; the spiral micrometer is adjusted, the workpiece to be tested is stretched, when the tensile force measured by the pressure sensor is equal to 1% of the elastic limit of the workpiece material to be tested, the spiral micrometer is stopped being adjusted, the two locking plates are locked, the tank body is fixed at the current position, and an initial load is applied to the workpiece to be tested;
3) And (3) inclination angle adjustment of the guide rail: the bolts connecting the guide rail and the upright post are disassembled, the guide rail is inclined by a certain angle by adjusting the guide rail position adjusting mechanism, the hinged positions among the rocker, the swing rod, the base and the hinged support are fixedly connected through the bolts and the gaskets respectively, the guide rail is further fixed at the current position, at the moment, the workpiece to be tested in the tank body is also positioned at the inclined position, and the side surface of the workpiece to be tested is positioned in an external physical field; the inclination angle of the guide rail can be adjusted within the range of 0-90 degrees by repeating the operation, so that the included angle between the acting direction of the external physical field and the workpiece to be detected is adjusted.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, the inclination angle of the guide rail in the range of 0-90 degrees is adjusted through the guide rail position adjusting mechanism, so that the included angle between a workpiece to be tested and the acting direction of an external physical field (such as a magnetic field) is adjusted, the moving direction of the surface charge of the energy material is changed, the surface electrochemical properties of the energy material in the acting directions of different physical fields are researched, and the device has high utilization rate and stronger applicability.
2. The energy materials such as nickel, foil, platinum and the like are plated on the surface of the film-shaped kapton film by utilizing a magnetron sputtering method to form a workpiece to be tested, and the plating materials on the two sides of the workpiece to be tested are different, so that the device can test the two materials at one time and has high efficiency; the size of the workpiece to be tested is small, and the plating layer and the substrate can be synchronously stretched under smaller stress; providing small elastic strain for a workpiece to be tested through a ceramic actuator, wherein the elastic strain range is 0.1% -1% of the original length of the material; of course, the application can also be used for testing the electrical properties of the two identical energy materials.
3. The locking plate and the frame plate are arranged in an adjustable mode, so that the workpiece to be tested can be conveniently installed and debugged, and the accuracy and precision of the test are improved.
4. The tank body is of a tank body structure, and the workpiece to be tested is vertically positioned in the tank body, so that a plurality of surfaces of the workpiece to be tested are all in an electrochemical environment, and the defect that the existing device can only study the electrochemical performance of a single surface of a material is overcome; the tank body can be connected with an external port through a liquid inlet and a liquid outlet; the cell body can also realize the flow of the solution through the external peristaltic pump, overcomes the defect that the conventional device is inconvenient to interact with an external test system, can only study the electrochemical performance of the material in a single static solution environment, realizes the electrochemical performance test of the material in a multi-environment condition, and can improve the speed and the efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the base of the present invention;
FIG. 3 is a schematic view of the guide rail position adjustment mechanism of the present invention;
FIG. 4 is a schematic view of the structure of the guide rail mechanism of the present invention;
FIG. 5 is a schematic view of the structure of the load applying mechanism of the present invention;
FIG. 6 is a schematic view of the structure of the cell body and the positioning sleeve of the present invention;
FIG. 7 is a schematic view of the structure of the cell cover of the present invention;
FIG. 8 is a schematic view of the structure of the conductive pull-down rod of the present invention;
FIG. 9 is a schematic view of the track mechanism of the present invention in a horizontal position;
in the figure: 1. a guide rail position adjusting mechanism; 2. a guide rail mechanism; 3. a load applying mechanism; 4. a base;
11. A handle; 12. swing rod; 13. an L-shaped connecting plate; 14. a rocker; 15. a seat plate;
21. a guide rail; 22. a first frame plate; 23. a first locking plate; 24. a second frame plate;
31. A ceramic actuator; 32. a pull rod; 33. a cell body; 34. a conductive pull-down rod; 35. a positioning sleeve; 36. a sensor; 37. a lead screw nut; 38. a screw micrometer; 39. a second locking plate; 310. a slide plate;
41. A bottom plate; 42. a hinged support; 43. a column connecting plate; 44. a column;
211. A first mounting hole; 331. a cell body; 332. a reference electrode; 333. a cell body cover; 334. a glass sheet; 335. a fixing member; 341. tabletting; 342. an annular groove; 351. a conductive stud; 411. a threaded hole; 441. a second mounting hole;
3311. A liquid inlet; 3312. a liquid outlet; 3331. a boss; 3332. an electrode hole; 3333. and a through hole.
Detailed Description
The following embodiments of the present application are given in conjunction with the specific drawings, and the specific embodiments are only used for further explaining the technical scheme of the present application in detail, and do not limit the protection scope of the present application.
The invention provides an in-situ load loading device (device is referred to as 1-9 for short) for an electrochemical system, which comprises a guide rail position adjusting mechanism 1, a guide rail mechanism 2, a load applying mechanism 3 and a base 4;
The load applying mechanism 3 is arranged on the guide rail mechanism 2 and is used for applying load to the workpiece to be tested; the guide rail mechanism 2 is connected with the guide rail position adjusting mechanism 1 through a revolute pair, the guide rail position adjusting mechanism 1 is connected with the base 4 through a revolute pair, the guide rail position adjusting mechanism 1 is used for realizing the rotation of the guide rail mechanism 2 within the range of 0-90 degrees, and can realize the fixation of the guide rail mechanism 2, so that the inclination angle of a workpiece to be tested in the tank body 33 of the load applying mechanism 3 is adjusted;
The base 4 comprises a bottom plate 41, a hinged support 42, a column connecting plate 43 and a column 44; the bottom plate 41 can be rectangular, hinge supports 42 are fixed at four end corners of the rectangle, and a threaded hole 411 for vertically fixing the guide rail mechanism 2 is formed in the middle of the bottom plate 41; two stand columns 44 are arranged at one end of the bottom plate 41 at intervals along the short side direction, and the free ends of the stand columns 44 are provided with second mounting holes 441 for horizontally fixing the guide rail mechanism 2; the upright post connecting plates 43 are sleeved at the free ends of the two upright posts 44, so that the stability of the upright posts 44 is improved;
The guide rail position adjusting mechanism 1 comprises a swing rod 12, an L-shaped connecting plate 13, a swing rod 14 and a seat plate 15; two sides of one end of the seat plate 15 are respectively hinged with one end of each rocker 14, and the other ends of the two rockers 14 are respectively hinged with two hinge supports 42 at one end of the bottom plate 41; two sides of the other end of the seat plate 15 are respectively hinged with one end of each swing rod 12, and the other ends of the two swing rods 12 are respectively hinged with two hinge supports 42 at the other end of the bottom plate 41; the conversion between the vertical position and the horizontal position of the guide rail mechanism 2 is realized by changing the positions of the seat plate 15, the swing rod 12 and the swing rod 14; the vertical surface of the L-shaped connecting plate 13 is fixedly connected with one end of the hinged swing rod 12 of the seat plate 15 through a bolt, and the horizontal surface of the L-shaped connecting plate 13 can be connected with the threaded hole 411 of the bottom plate 41 through the bolt, so that the fixed installation of the guide rail mechanism 2 at the vertical position is realized;
The guide rail mechanism 2 comprises a guide rail 21, a first frame plate 22, a first locking plate 23 and a second frame plate 24; the second frame plate 24 is fixed on the side surface of the seat plate 15 through bolts and is positioned at one end of the seat plate 15 hinged with the swing rod 12; two guide rails 21 parallel to the seat plate 15 are fixed on the second frame plate 24 at intervals, and the first frame plate 22 is sleeved at the free ends of the two guide rails 21, so that the stability of the guide rails 21 is ensured; a first mounting hole 211 is formed in the position, close to the free end, of the guide rail 21, and the first mounting hole 211 and a second mounting hole 441 are connected through bolts, so that the horizontal position of the guide rail mechanism 2 is fixedly mounted; the first locking plate 23 is sleeved on the two guide rails 21 and is close to the second frame plate 24;
the load applying mechanism 3 comprises a ceramic actuator 31, an upper pull rod 32, a tank body 33, a conductive lower pull rod 34, a positioning sleeve 35, a pressure sensor 36, a lead screw nut 37, a screw micrometer 38, a second locking plate 39 and a sliding plate 310;
the second locking plate 39 and the sliding plate 310 are both arranged on the two guide rails 21, and the sliding plate 310 is positioned between the second locking plate 39 and the first locking plate 23; the screw micrometer 38 is fixed on the first locking plate 23, the screw nut 37 is slidably mounted on an adjusting column of the screw micrometer 38, the screw nut 37 is fixedly connected with the sliding plate 310 at the same time, and the screw micrometer 38 provides an initial load for a workpiece to be tested; the two ends of the pressure sensor 36 are respectively fixedly connected with a second locking plate 39 and a sliding plate 310 and are used for detecting the initial load of a workpiece to be tested; one end of the positioning sleeve 35 is fixedly connected with a second locking plate 39, and the other end of the positioning sleeve is fixedly connected with one end of the conductive lower pull rod 34; the other end of the conductive lower pull rod 34 extends into the tank body 33 from the bottom of the tank body 33 and is used for clamping the lower end of a workpiece to be tested; the position of the conductive lower pull rod 34 penetrating through the tank body 33 is sealed by a sealing plug, so that the leakage of liquid in the tank body 33 during the test is prevented; the ceramic actuator 31 is fixed in the middle of the first frame plate 22, and the acting end of the ceramic actuator 31 faces the first locking plate 23; one end of the upper pull rod 32 is connected with the acting end of the ceramic actuator 31 in a threaded manner, and the other end of the upper pull rod extends into the tank body 33 from the top of the tank body 33 and is used for clamping the upper end of a workpiece to be tested, and the load is applied to the workpiece to be tested through the ceramic actuator 31.
The cell body 33 comprises a reference electrode 332, a cell body cover 333, a glass sheet 334, a fixing member 335 and an insulating cell body 331; the tank body 331 is a hollow tank body structure with openings at the upper end and one side, a groove is formed in the upper end surface of the tank body 331, a liquid inlet 3311 and a liquid outlet 3312 are respectively formed in one side of the tank body 331, a reference electrode 332 is arranged on a side glass sheet 334 of the tank body 331 and is arranged at the side opening of the tank body 331 through a fixing piece 335, and sealing treatment is carried out at the joint; the glass sheet 334 is provided with scale marks for observing the electrolyte capacity in the cell body 331 so that the electrolyte can be used for passing through the workpiece to be tested; the tank cover 333 is mounted on the tank body 331 through bolts, and a boss on the lower surface of the tank cover 333 is matched with a groove of the tank body 331; the cell cover 333 has a through hole 3333 for passing the upper tie rod 32 therethrough, and an electrode hole 3332 for attaching a counter electrode thereto.
The side surface of the positioning sleeve 35 is provided with a threaded hole, and the conductive stud 351 is arranged in the threaded hole of the positioning sleeve 35; one end of the conductive stud, which is positioned in the positioning sleeve 35, is tightly fixed with the conductive pull-down rod 34, and one end of the conductive stud, which is positioned outside the positioning sleeve 35, is provided with a working electrode, which is used for measuring the electric signal of the workpiece to be tested, and the electrochemical performance of the energy material is researched through the electric signal.
An annular groove 342 matched with the conductive stud 351 is formed on the side surface of the middle part of the conductive lower pull rod 34; the end of the conductive stud 351 is in close contact with the annular groove 342 to facilitate transfer of electrical charge.
The guide rail position adjusting mechanism 1 further comprises a handle 11, the handles 11 are respectively fixed at the upper end and the lower end of one side of the seat board 15, and the handle 11 is held by hands to facilitate the position switching operation of the guide rail mechanism 2.
The upper pull rod 32 and the lower pull rod 34 have the same structure; the end of the lower pull rod 34 is provided with a pressing piece 341 for clamping the workpiece to be tested through a lock nut, and the clamping and the loosening of the workpiece to be tested are realized through rotating the lock nut.
Studs are arranged on the first frame plate 22, the first locking plate 23, the second frame plate 24 and the second locking plate 39, and locking and unlocking of the plates and the guide rail 21 are realized by rotating the studs.
The working principle and the working flow of the invention are as follows:
1) Installing a workpiece to be tested: the workpiece to be tested is a rectangular sheet, and both sides of the workpiece to be tested are respectively provided with metal coatings made of different energy materials or the workpiece to be tested can also be a sheet made of a single metal material; the studs on the first frame plate 22 and the second frame plate 24 are adjusted to lock the guide rail 21; the guide rail 21 is positioned at the horizontal position by adjusting the guide rail position adjusting mechanism 1, and the guide rail 21 and the corresponding upright post 44 are fixed by bolts, so that the guide rail mechanism 2 is fixedly installed at the horizontal position; adjusting the pressing sheets of the upper pull rod 32 and the conductive lower pull rod 34, fixing the two ends of the workpiece to be tested with the upper pull rod 32 and the conductive lower pull rod 34, and detecting the position of the workpiece to be tested through a level gauge so as to keep the workpiece to be tested horizontal;
2) Debugging a workpiece to be tested: the studs on the first locking plate 23 and the second locking plate 39 are adjusted so that the two locking plates can slide on the guide rail 21; adjusting the screw micrometer 38 to stretch the workpiece to be tested; when the tensile force measured by the pressure sensor 36 is equal to 0.1% -1% (1% in the embodiment) of the elastic limit of the workpiece material to be tested, stopping adjusting the screw micrometer 38, locking the two locking plates, further fixing the tank 33 at the current position, and applying an initial external load to the workpiece to be tested, so as to finish debugging the workpiece to be tested;
3) And (3) inclination angle adjustment of the guide rail: the bolts connecting the guide rail 21 and the upright post 44 are detached, the guide rail 21 is inclined by a certain angle (0-90 degrees) through adjusting the guide rail position adjusting mechanism 1, the hinging positions among the rocker, the swing rod, the base and the hinging support are fixedly connected through the bolts and the gaskets respectively, the guide rail 21 is further fixed at the current position, at the moment, the workpiece to be tested in the tank body 33 is also in an inclined position, and an external physical field acts on the side surface of the workpiece to be tested; the inclination angle of the guide rail 21 can be adjusted within the range of 0-90 degrees by repeating the operation, so that the included angle between the acting direction of the external physical field and the workpiece to be tested is changed, the moving direction of the surface charge of the workpiece to be tested under each included angle is different, and the electrochemical performance of the energy material is comprehensively reflected; in addition, as the inclination angle of the guide rail can be adjusted, the guide rail can be matched with a test system of a related test required to be performed on a workpiece to be tested, and the guide rail is convenient to use;
When the guide rail 21 is in the vertical position, the L-shaped connecting plate 13 is fixed with the bottom plate 41 through bolts, so that the guide rail mechanism 2 is fixedly installed in the vertical position; each electrode on the cell body 33 is connected with an external test system, and electrolyte is filled in the cell body 33, so that the performance of the workpiece to be tested in an electrochemical environment can be studied; the electrolyte solution of the application can be copper sulfate, sodium chloride and the like; the load is applied to the workpiece to be tested by the ceramic actuator 31 to study the electrochemical performance of the material surface under different loads.
In the embodiment, the length of the workpiece to be tested is 40-80 mm, the width is 10-20 mm, the thickness is 100 um-2 mm, and the workpiece to be tested can be completely accommodated in the tank body.
The invention is especially suitable for in-situ loading of energy materials in electrochemical environment, can adjust the rotation angle of the electrolytic cell, improves the interaction capability and adaptability with an external testing device, selects a ceramic actuator for the energy materials with smaller size, can provide small load suitable for the energy materials, and improves the accuracy, reliability and simplicity of experiments.
The invention is applicable to the prior art where it is not described.
Claims (9)
1. An in-situ load loading device for an electrochemical system is characterized by comprising a guide rail position adjusting mechanism, a guide rail mechanism, a load applying mechanism and a base; the guide rail position adjusting mechanism is used for realizing the rotation of the guide rail mechanism within the range of 0-90 degrees, and can realize the fixation of the guide rail mechanism, so as to adjust the inclination angle of a workpiece to be tested in the pool body of the load applying mechanism;
The load applying mechanism comprises an upper connecting rod, a tank body, a conductive lower pull rod, a pressure sensor and a spiral micrometer; the upper pull rod is fixed at the action end of the ceramic actuator, the upper pull rod and the conductive lower pull rod are respectively connected with the upper end and the lower end of a workpiece to be tested, and the workpiece to be tested is positioned in the tank body; the spiral micrometer is positioned below the tank body and provides an initial load for the workpiece to be tested; the pressure sensor is used for measuring the initial load of the workpiece to be tested;
The pool body comprises a pool body cover, a glass sheet, a fixing piece and an insulating pool body; the tank body is of a tank body structure with openings at the upper end and one side, and one side of the tank body is provided with a liquid inlet and a liquid outlet respectively; the pool body cover is fixed on the pool body; the glass sheet is arranged at the side opening of the tank body through the fixing piece;
the using method of the device comprises the following specific steps:
1) Installing a workpiece to be tested: the studs on the first frame plate and the second frame plate of the guide rail mechanism are adjusted to lock the guide rail; the guide rail is positioned at the horizontal position by adjusting the guide rail position adjusting mechanism, and the guide rail is fixed with the upright post corresponding to the base through the bolt, so that the guide rail mechanism is fixedly installed at the horizontal position; adjusting the pressing sheets of the upper pull rod and the conductive lower pull rod, fixing the two ends of the workpiece to be tested with the upper pull rod and the conductive lower pull rod, detecting the position of the workpiece to be tested through a level meter, and keeping the workpiece to be tested horizontal;
2) Debugging a workpiece to be tested: the studs on the first locking plate of the guide rail mechanism and the studs on the second locking plate of the load loading mechanism are adjusted, so that the two locking plates can slide on the guide rail; the spiral micrometer is adjusted, the workpiece to be tested is stretched, when the tensile force measured by the pressure sensor is equal to 1% of the elastic limit of the workpiece material to be tested, the spiral micrometer is stopped being adjusted, the two locking plates are locked, the tank body is fixed at the current position, and an initial load is applied to the workpiece to be tested;
3) And (3) inclination angle adjustment of the guide rail: the bolts connecting the guide rail and the upright post are disassembled, the guide rail is inclined by a certain angle by adjusting the guide rail position adjusting mechanism, the rocker of the guide rail position adjusting mechanism is fixedly connected with the swing rod, the bottom plate of the base and the hinge support seat respectively through the bolts and the gaskets, and then the guide rail is fixed at the current position, at the moment, the workpiece to be tested in the tank body is also in an inclined position, and an external physical field acts on the side surface of the workpiece to be tested; the inclination angle of the guide rail can be adjusted within the range of 0-90 degrees by repeating the operation, so that the included angle between the acting direction of the external physical field and the workpiece to be detected is adjusted.
2. The in-situ load loading device for an electrochemical system of claim 1, wherein the load applying mechanism is mounted on a rail mechanism, the rail mechanism is connected to a rail position adjustment mechanism by a revolute pair, and the rail position adjustment mechanism is connected to the base by a revolute pair.
3. The in situ load loading device for an electrochemical system of claim 1 or 2, wherein the base comprises a floor, a hinge support, a stud web, and a stud; the four end corners of the bottom plate are respectively fixed with a hinged support, and the middle part of the bottom plate is provided with a threaded hole; two stand columns are arranged at one end of the bottom plate at intervals along the short side direction, and mounting holes are formed in the free ends of the stand columns; the stand column connecting plate is sleeved at the free ends of the two stand columns.
4. The in-situ load loading device for an electrochemical system of claim 3, wherein the rail position adjustment mechanism comprises a swing link, an L-shaped connecting plate, a swing link, and a seat plate; two sides of one end of the seat board are respectively hinged with one end of each rocker, and the other ends of the two rockers are respectively hinged with two hinged supports at one end of the bottom board; two sides of the other end of the seat plate are respectively hinged with one end of each swing rod, and the other ends of the two swing rods are respectively hinged with two hinged supports at the other end of the bottom plate; the vertical surface of the L-shaped connecting plate is fixedly connected with one end of the seat plate hinged swing rod, and the horizontal surface of the L-shaped connecting plate can be connected with the threaded hole of the bottom plate.
5. The in-situ load applying device for an electrochemical system according to claim 4, wherein the rail position adjusting mechanism further comprises a handle, and handles are respectively fixed to both ends of one side of the seat plate.
6. The in-situ load applying device for an electrochemical system according to claim 4, wherein the rail mechanism comprises a rail, a first shelf, a first locking plate, and a second shelf; the second frame plate is fixed on the side surface of the seat plate and is positioned at one end of the seat plate hinged with the swing rod; two guide rails parallel to the seat plate are fixed on the second frame plate at intervals, and the first frame plate is sleeved at the free ends of the two guide rails; the position of the guide rail close to the free end is provided with a mounting hole; the first locking plate is sleeved on the two guide rails and is close to the second frame plate.
7. The in-situ load applying device for an electrochemical system of claim 6, wherein the load applying mechanism further comprises a positioning sleeve, a lead screw nut, a No. two locking plate, a slide plate, and a connecting shaft;
The second locking plate and the sliding plate are both arranged on the two guide rails, and the sliding plate is positioned between the second locking plate and the first locking plate; the screw micrometer is fixed on the first locking plate, the screw nut is slidably arranged on the adjusting column of the screw micrometer, and the screw nut is fixedly connected with the sliding plate at the same time; two ends of the pressure sensor are respectively fixedly connected with the second locking plate and the sliding plate; one end of the positioning sleeve is fixedly connected with the second locking plate, and the other end of the positioning sleeve is fixedly connected with one end of the conductive lower pull rod; the other end of the conductive lower pull rod extends into the tank body from the bottom of the tank body and is used for clamping the lower end of the workpiece to be tested; the position of the conductive lower pull rod passing through the tank body is sealed by a sealing plug; the ceramic actuator is fixed in the middle part of a frame plate, one end threaded connection of pull rod is on the action end of ceramic actuator, and the other end passes the cell body lid and stretches into the cell body is internal for the upper end of centre gripping work piece that waits to test.
8. The in-situ load loading device for an electrochemical system of claim 7, wherein the side of the positioning sleeve is provided with a threaded hole, and the conductive stud is installed in the threaded hole of the positioning sleeve; one end of the conductive stud, which is positioned in the positioning sleeve, is tightly fixed with the conductive lower pull rod, and one end, which is positioned outside the positioning sleeve, is provided with a working electrode.
9. The in-situ load loading device for an electrochemical system of claim 7, wherein the middle side of the conductive pull-down rod is provided with an annular groove matched with a conductive stud, and the end of the conductive stud is in close contact with the annular groove.
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