CN112034024A - In-situ load loading device for electrochemical system - Google Patents
In-situ load loading device for electrochemical system Download PDFInfo
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- CN112034024A CN112034024A CN202011018190.1A CN202011018190A CN112034024A CN 112034024 A CN112034024 A CN 112034024A CN 202011018190 A CN202011018190 A CN 202011018190A CN 112034024 A CN112034024 A CN 112034024A
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000000919 ceramic Substances 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims abstract description 11
- 210000005056 cell body Anatomy 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000011160 research Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 10
- 230000007547 defect Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000000243 solution 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
- 238000000576 coating method Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 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
- 238000013461 design Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009434 installation Methods 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
- 238000011056 performance test Methods 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 230000008569 process Effects 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
- 230000007474 system interaction Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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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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, wherein the guide rail position adjusting mechanism is arranged on the 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 fixing the guide rail mechanism so as to adjust the inclination angle of a workpiece to be tested in the tank 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 micrometer screw; 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 device realizes that the guide rail is at the inclination angle regulation of 0 ~ 90 within range through guide rail position adjustment mechanism, adjusts the contained angle between the work piece of awaiting measuring and the outside physical field direction of action to research energy material surface electrochemical performance under different physical field direction of action, the device high-usage, the suitability is stronger.
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
The energy material is mostly applied to a complex electrochemical environment, and the electrochemical properties of the material are different under different load conditions, so that the research on the electrochemical properties of the energy material under dynamic load can provide theoretical support for the application of the energy material in the complex environment, and is also an important branch in the field of energy material research.
For the material performance research under an extremely complex environment, 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 cause different charge moving directions of the energy material, and further cause different electrochemical performances of the energy material. 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 charges on the surface of the material can only move along a fixed direction, and the electrochemical performance of the surface of the energy material cannot be comprehensively reflected; because the weight of the electromagnet is large, the direction of the magnetic field is changed by adjusting the electromagnet, the included angle between the magnetic field and the material is further adjusted, and the implementation difficulty is large, so that the design of the in-situ load loading device capable of adjusting the angle of the material and enabling the material to be interacted with an external physical field is necessary.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an in-situ load loading device for an electrochemical system.
The technical scheme adopted by the invention 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 fixing the guide rail mechanism so as to adjust the inclination angle of a workpiece to be tested in the tank 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 micrometer screw; 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 a workpiece to be tested; the pressure sensor is used for measuring the initial load of the workpiece to be tested;
the tank body comprises a tank body cover, a glass sheet, a fixing piece and an insulated tank body; the tank body is of a box structure with openings at the upper end and one side, and a liquid inlet and a liquid outlet are respectively arranged at one side of the tank body; the tank body cover is fixed on the tank body; the glass sheet is arranged at the opening of the side surface of the tank body through a fixing piece.
The load applying mechanism is installed 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, an upright post connecting plate and an upright post; hinged supports are fixed at the four end corners of the bottom plate, and threaded holes are formed in the middle of the bottom plate; one end of the bottom plate is provided with two upright posts at intervals along the direction of the short edge, and the free ends of the upright posts are provided with mounting holes; the stand connecting plate suit is at the free end of two stands.
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 board 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 board; the vertical surface of the L-shaped connecting plate is fixedly connected with one end of the seat plate hinged with the 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 fixed to two ends of one side of the seat plate respectively.
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, which is 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 guide rail is provided with a mounting hole at the position close to the free end; the first locking plate is sleeved on the two guide rails and is close to the second frame plate.
The load applying mechanism also comprises a positioning sleeve, a lead 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 micrometer screw is fixed on the first locking plate, the screw nut is slidably mounted on the adjusting column of the micrometer screw, and the screw nut is fixedly connected with the sliding plate; two ends of the pressure sensor are fixedly connected with the second locking plate and the sliding plate respectively; 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 a workpiece to be tested; the position of the conductive lower pull rod penetrating through the tank body is sealed by a sealing plug; ceramic actuator fixes in the middle part of a frame plate, and the one end threaded connection of going up the pull rod is served in ceramic actuator's effect, and the other end passes the cell body lid and stretches into the cell body internally for the upper end of the work piece that awaits measuring of centre gripping.
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 in the positioning sleeve is tightly fixed with the conductive lower pull rod, and one end outside the positioning sleeve is provided with the working electrode.
The side surface of the middle part of the conductive lower pull rod is provided with an annular groove matched with the conductive stud, and the end part of the conductive stud is tightly contacted 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:
1) installing a workpiece to be tested: adjusting the studs on the first frame plate and the second frame plate 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 by a bolt, so that the guide rail mechanism is fixedly installed at the horizontal position; adjusting pressing sheets of the upper pull rod and the conductive lower pull rod, fixing two ends of a workpiece to be tested with the upper pull rod and the conductive lower pull rod, and detecting the position of the workpiece to be tested through a level gauge to keep the workpiece to be tested horizontal;
2) debugging of a workpiece to be tested: adjusting studs on the first locking plate and the second locking plate to enable the two locking plates to slide on the guide rail; adjusting the screw micrometer to stretch the workpiece to be tested, stopping adjusting the screw micrometer when the tensile force measured by the pressure sensor is equal to 1% of the elastic limit of the material of the workpiece to be tested, locking the two locking plates, fixing the pool body at the current position, and applying an initial load to the workpiece to be tested;
3) adjusting the inclination angle of the guide rail: dismounting bolts connecting the guide rail and the upright post, inclining the guide rail by a certain angle by adjusting a guide rail position adjusting mechanism, fixedly connecting hinged positions among the rocker, the oscillating bar, the base and the hinged support through the bolts and the gaskets, fixing the guide rail at the current position, and fixing a workpiece to be tested in the pool body at the inclined position and the side surface of the workpiece to be tested 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, and then the included angle between the action 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. the device realizes the inclination angle adjustment of the guide rail within the range of 0-90 degrees through the guide rail position adjusting mechanism, further adjusts the included angle between the workpiece to be tested and the action direction of an external physical field (such as a magnetic field), so as to change the moving direction of surface charges of the energy material, further researches the surface electrochemical performance of the energy material in different action directions of the physical field, and has high utilization rate and stronger applicability.
2. Energy materials such as nickel, foil, platinum and the like which are aimed at by the device are plated on the surface of a thin-film kapton film by a magnetron sputtering method to form a workpiece to be tested, and plating materials on two sides of the workpiece to be tested are different, so that the device can test two materials at one time and has high efficiency; the size of a workpiece to be tested is small, and the coating and the substrate can be synchronously stretched under small 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 invention can also be used for testing the electrical properties of energy source materials with the same two sides.
3. The locking plate and the frame plate are both adjustable, so that the mounting and debugging of a workpiece to be tested are facilitated, and the accuracy and precision of the test are improved.
4. The tank body is of a box 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 electrochemical performance of a single surface of a material can only be researched by the conventional device is overcome; the pool 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 solution through external peristaltic pump to overcome current device and outside test system interaction inconvenient, can only study the defect of the electrochemical performance of material under single static solution environment, realized the electrochemical performance test of material under the multiple environment condition, can improve speed and efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the base of the present invention;
FIG. 3 is a schematic view of the structure of the guide rail position adjustment mechanism of the present invention;
FIG. 4 is a schematic structural view of the track mechanism of the present invention;
FIG. 5 is a schematic structural view of the load applying mechanism of the present invention;
FIG. 6 is a schematic structural view of a tank body and a positioning sleeve of the invention;
FIG. 7 is a schematic structural view of a tank body cover of the present invention;
FIG. 8 is a schematic structural view of the conductive down-link 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. a 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. an upper pull rod; 33. a tank body; 34. a conductive lower tie bar; 35. a positioning sleeve; 36. a sensor; 37. a lead screw nut; 38. a micrometer screw; 39. a second locking plate; 310. a slide plate;
41. a base plate; 42. a hinged support; 43. a column connecting plate; 44. a column;
211. a first mounting hole; 331. a tank body; 332. a reference electrode; 333. a tank 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 invention are provided in conjunction with the specific drawings, and the specific embodiments are only used for further describing the technical solutions of the present invention in detail, and do not limit the protection scope of the present application.
The invention provides an in-situ load loading device (a device for short, see fig. 1-9) 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 applies 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, and the guide rail position adjusting mechanism 1 is used for achieving rotation of the guide rail mechanism 2 within a range of 0-90 degrees and fixing 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 stand column connecting plate 43 and a stand column 44; the bottom plate 41 can be rectangular, hinged supports 42 are fixed at four 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; one end of the bottom plate 41 is provided with two upright posts 44 at intervals along the short side direction, and the free end of the upright post 44 is provided with a second mounting hole 441 for horizontally fixing the guide rail mechanism 2; the upright post connecting plate 43 is 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 board 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 hinged supports 42 at one end of the bottom board 41; two sides of the other end of the seat board 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 hinged supports 42 at the other end of the bottom board 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 rocker 14; the vertical surface of the L-shaped connecting plate 13 is fixedly connected with one end of the seat plate 15 hinged with the swing rod 12 through a bolt, and the horizontal surface of the L-shaped connecting plate 13 can be connected with a threaded hole 411 of the bottom plate 41 through a 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 a bolt 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 to ensure the stability of the guide rails 21; 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 guide rail mechanism 2 is fixedly mounted in the horizontal position; 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 micrometer caliper 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 micrometer screw 38 is fixed on the first locking plate 23, the lead screw nut 37 is slidably mounted on an adjusting column of the micrometer screw 38, the lead screw nut 37 is fixedly connected with the sliding plate 310 at the same time, and the micrometer screw 38 provides an initial load for a workpiece to be tested; two ends of the pressure sensor 36 are fixedly connected with the second locking plate 39 and the sliding plate 310 respectively and used for detecting the initial load of the workpiece to be tested; one end of the positioning sleeve 35 is fixedly connected with the 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 liquid in the tank body 33 is prevented from leaking during the test; 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 in threaded connection with the action end of the ceramic actuator 31, 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 ceramic actuator 31 is used for applying load to the workpiece to be tested.
The cell body 33 comprises a reference electrode 332, a cell body cover 333, a glass sheet 334, a fixing part 335 and an insulated cell body 331; the tank body 331 is a hollow tank 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 installed on a side glass sheet 334 of the tank body 331 and is installed at the side opening of the tank body 331 through a fixing piece 335, and the reference electrode enters and exits the sealing treatment at the connection position; the glass sheet 334 is provided with scale marks for observing the electrolyte capacity in the tank body 331, so that the electrolyte can only submerge a workpiece to be tested; the tank body cover 333 is arranged on the tank body 331 through bolts, and a boss on the lower surface of the tank body cover 333 is matched with a groove of the tank body 331; the cell body lid 333 has a through hole 3333 for passing the upper rod 32 and an electrode hole 3332 for mounting a counter electrode.
A threaded hole is formed in the side surface of the positioning sleeve 35, and the conductive stud 351 is installed 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 lower pull rod 34, one end of the conductive stud, which is positioned outside the positioning sleeve 35, is provided with a working electrode, the working electrode is used for measuring an electric signal of a workpiece to be tested, and the electrochemical performance of an energy material is researched through the electric signal.
The side surface of the middle part of the conductive lower pull rod 34 is provided with an annular groove 342 matched with the conductive stud 351; the end of the conductive stud 351 is in intimate contact with the annular groove 342 to facilitate the transfer of electrical charge.
The guide rail position adjusting mechanism 1 further comprises a handle 11, the upper end and the lower end of one side of the seat plate 15 are respectively fixed with the handle 11, and the handle 11 is held by hands, so that the position switching operation of the guide rail mechanism 2 is facilitated.
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 a workpiece to be tested through a lock nut, and the clamping and loosening of the workpiece to be tested are realized through rotating the lock nut.
The first frame plate 22, the first locking plate 23, the second frame plate 24 and the second locking plate 39 are all provided with studs, and locking and unlocking of the plates and the guide rail 21 are realized by rotating the studs.
The working principle and the working process of the invention are as follows:
1) installing a workpiece to be tested: the workpiece to be tested is a rectangular sheet, and two side surfaces 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; adjusting studs on the first frame plate 22 and the second frame plate 24 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 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 meter to keep the workpiece to be tested horizontal;
2) debugging of a workpiece to be tested: adjusting studs on the first locking plate 23 and the second locking plate 39 to enable the two locking plates to slide on the guide rail 21; adjusting the micrometer caliper 38 and stretching 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 material of the workpiece to be tested, the adjustment of the micrometer screw gauge 38 is stopped, the two locking plates are locked, the cell body 33 is fixed at the current position, an initial additional load is applied to the workpiece to be tested, and the debugging of the workpiece to be tested is completed;
3) adjusting the inclination angle of the guide rail: the bolts for connecting the guide rail 21 and the upright post 44 are dismounted, the guide rail 21 is inclined by a certain angle (within the range of 0-90 degrees) by adjusting the guide rail position adjusting mechanism 1, the rocker, the swing rod, the hinged position between the base and the hinged support are fixedly connected through the bolts and the gaskets, the guide rail 21 is fixed at the current position, at the moment, the workpiece to be tested in the tank body 33 is also in the 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 action 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 is different under each included angle, and the electrochemical performance of the energy material is comprehensively reflected; in addition, the guide rail can be matched with a test system of related tests required by a workpiece to be tested due to the adjustable inclination angle of the guide rail, and the use is convenient;
when the guide rail 21 is in the vertical position, the L-shaped connecting plate 13 and the bottom plate 41 are fixed by bolts, so that the guide rail mechanism 2 is fixedly mounted in the vertical position; connecting each electrode on the cell body 33 with an external test system, and filling electrolyte in the cell body 33, so that the performance of a workpiece to be tested in an electrochemical environment can be researched; the electrolyte solution of the present application may be copper sulfate, sodium chloride, or the like; a load is applied to a workpiece to be tested through the ceramic actuator 31, so that the electrochemical performance of the surface of the material under different loads is researched.
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 can be completely accommodated in the tank body.
The invention is especially suitable for in-situ loading of energy materials in an electrochemical environment, can adjust the corner of the electrolytic cell, improves the interaction capacity and adaptability with an external testing device, selects the ceramic actuator aiming at the energy materials with smaller size, can provide small load suitable for the energy materials, and improves the accuracy, reliability and simplicity of the experiment.
Nothing in this specification is said to apply to the prior art.
Claims (10)
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 fixing the guide rail mechanism so as to adjust the inclination angle of a workpiece to be tested in the tank 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 micrometer screw; 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 a workpiece to be tested; the pressure sensor is used for measuring the initial load of the workpiece to be tested;
the tank body comprises a tank body cover, a glass sheet, a fixing piece and an insulated tank body; the tank body is of a box structure with openings at the upper end and one side, and a liquid inlet and a liquid outlet are respectively arranged at one side of the tank body; the tank body cover is fixed on the tank body; the glass sheet is arranged at the opening of the side surface of the tank body through a fixing piece.
2. The in-situ load applying apparatus for an electrochemical system as claimed in claim 1, wherein the load applying mechanism is mounted on a rail mechanism, the rail mechanism is connected to the rail position adjusting mechanism via a revolute pair, and the rail position adjusting mechanism is connected to the base via a revolute pair.
3. The in-situ load loading device for an electrochemical system of claim 1 or 2, wherein the base comprises a base plate, a hinged support, a column connecting plate and a column; hinged supports are fixed at the four end corners of the bottom plate, and threaded holes are formed in the middle of the bottom plate; one end of the bottom plate is provided with two upright posts at intervals along the direction of the short edge, and the free ends of the upright posts are provided with mounting holes; the stand connecting plate suit is at the free end of two stands.
4. The in-situ load loading device for the electrochemical system according to claim 3, wherein the rail position adjusting 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 board 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 board; the vertical surface of the L-shaped connecting plate is fixedly connected with one end of the seat plate hinged with the 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 apparatus for electrochemical system as claimed in claim 4, wherein the guiding rail position adjusting mechanism further comprises a handle, and the handle is fixed to each of two ends of one side of the seat plate.
6. The in-situ load loading device for the electrochemical system according to claim 4, wherein the rail mechanism comprises a rail, a frame plate I, a locking plate I and a frame plate II; the second frame plate is fixed on the side surface of the seat plate and is positioned at one end of the seat plate, which is 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 guide rail is provided with a mounting hole at the position close to the free end; the first locking plate is sleeved on the two guide rails and is close to the second frame plate.
7. The in-situ load loading device for the electrochemical system according to claim 6, wherein the load applying mechanism further comprises a positioning sleeve, a lead 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 micrometer screw is fixed on the first locking plate, the screw nut is slidably mounted on the adjusting column of the micrometer screw, and the screw nut is fixedly connected with the sliding plate; two ends of the pressure sensor are fixedly connected with the second locking plate and the sliding plate respectively; 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 a workpiece to be tested; the position of the conductive lower pull rod penetrating through the tank body is sealed by a sealing plug; ceramic actuator fixes in the middle part of a frame plate, and the one end threaded connection of going up the pull rod is served in ceramic actuator's effect, and the other end passes the cell body lid and stretches into the cell body internally for the upper end of the work piece that awaits measuring of centre gripping.
8. The in-situ load loading device for the electrochemical system as claimed in claim 7, wherein a threaded hole is formed in a side surface of the positioning sleeve, and the conductive stud is installed in the threaded hole of the positioning sleeve; one end of the conductive stud in the positioning sleeve is tightly fixed with the conductive lower pull rod, and one end outside the positioning sleeve is provided with the working electrode.
9. The in-situ load loading device for the electrochemical system as claimed in claim 7, wherein the conductive lower tie bar has an annular groove formed on a side surface of a middle portion thereof for engaging with the conductive stud, and an end portion of the conductive stud is in close contact with the annular groove.
10. The use method of the in-situ load loading device for the electrochemical system is characterized by comprising the following specific steps:
1) installing a workpiece to be tested: adjusting the studs on the first frame plate and the second frame plate 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 by a bolt, so that the guide rail mechanism is fixedly installed at the horizontal position; adjusting pressing sheets of the upper pull rod and the conductive lower pull rod, fixing two ends of a workpiece to be tested with the upper pull rod and the conductive lower pull rod, and detecting the position of the workpiece to be tested through a level gauge to keep the workpiece to be tested horizontal;
2) debugging of a workpiece to be tested: adjusting studs on the first locking plate and the second locking plate to enable the two locking plates to slide on the guide rail; adjusting the screw micrometer to stretch the workpiece to be tested, stopping adjusting the screw micrometer when the tensile force measured by the pressure sensor is equal to 1% of the elastic limit of the material of the workpiece to be tested, locking the two locking plates, fixing the pool body at the current position, and applying an initial load to the workpiece to be tested;
3) adjusting the inclination angle of the guide rail: dismounting bolts connecting the guide rail and the upright post, inclining the guide rail by a certain angle by adjusting a guide rail position adjusting mechanism, fixedly connecting hinged positions among the rocker, the oscillating bar, the base and the hinged support through the bolts and the gaskets, fixing the guide rail at the current position, and fixing a workpiece to be tested in the pool body at the inclined position and the side surface of the workpiece to be tested 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, and then the included angle between the action direction of the external physical field and the workpiece to be detected is adjusted.
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