CN111562357A - Automatic corrosion testing machine - Google Patents
Automatic corrosion testing machine Download PDFInfo
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- CN111562357A CN111562357A CN202010267184.3A CN202010267184A CN111562357A CN 111562357 A CN111562357 A CN 111562357A CN 202010267184 A CN202010267184 A CN 202010267184A CN 111562357 A CN111562357 A CN 111562357A
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- 238000012360 testing method Methods 0.000 title claims abstract description 80
- 238000005260 corrosion Methods 0.000 title claims abstract description 69
- 230000007797 corrosion Effects 0.000 title claims abstract description 69
- 238000003756 stirring Methods 0.000 claims abstract description 114
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 7
- 230000003028 elevating effect Effects 0.000 abstract description 5
- 239000003112 inhibitor Substances 0.000 abstract description 5
- 239000002480 mineral oil Substances 0.000 abstract description 5
- 235000010446 mineral oil Nutrition 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010724 circulating oil Substances 0.000 abstract description 2
- 239000010720 hydraulic oil Substances 0.000 abstract description 2
- 239000010723 turbine oil Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000005611 electricity Effects 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000010998 test method 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
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses an automatic corrosion testing machine which comprises an integrated control touch screen circuit, a constant-temperature bath, a motor stirring device, a corrosion testing cup assembly and a motor lifting device, wherein the motor lifting device is connected with the motor lifting device; integrated control touch screen circuit contains power, control circuit and touch-sensitive screen, the thermostatic bath contains bath, heating pipe, liquid level lower limit alarm, temperature sensor and circulation agitator pump, motor agitating unit contains multichannel agitator motor, puddler and puddler fixed knot structure, corrosion cup subassembly contains corrosion cup, bowl cover, thermometer and corrosion stick, motor elevating gear contains rectilinear motion mechanism. The invention provides a testing machine for testing the rust resistance of mineral oil with an inhibitor under the condition of water, in particular to the rust resistance of iron parts when turbine oil is mixed with water, and the testing machine is also suitable for other oil products such as hydraulic oil, circulating oil and the like and liquid with density higher than water, solves the problem of the positioning accuracy of a stirring rod, and improves the operation efficiency.
Description
Technical Field
The invention relates to the technical field of detection instruments, in particular to an automatic corrosion testing machine.
Background
The instrument is designed according to the national standard GB/T11143-2008 test method for the antirust performance of the mineral oil with the inhibitor in the presence of water and ASTM D665-14e1 for measuring the antirust performance of the mineral oil with the inhibitor in the presence of water, and is used for testing the antirust performance of the mineral oil with the inhibitor in the presence of water, particularly the antirust capacity of the mineral oil with the inhibitor on iron parts when the turbine oil and the water are mixed, and is also suitable for other oil products such as hydraulic oil, circulating oil and the like and liquid with the density higher than that of the water.
For the existing corrosion testing machine, two ways are generally adopted to realize the clamping and positioning of the stirring rod: one way is to fasten the stirring rod by adopting a hollow shaft motor and a motor chuck, the stirring rod can move up and down in the central holes of the hollow shaft motor and the motor chuck, and the stirring rod is fixed at a proper position to realize the clamping and positioning of the stirring rod; the other mode is that the solid shaft motor is in transmission with the motor chuck through a belt, the motor chuck is hollow, and the stirring rod can move up and down in a center hole of the motor chuck to fix the stirring rod at a proper position, so that the stirring rod is clamped and positioned. Above-mentioned two kinds of modes all have the puddler loading and unloading trouble, appear off-centre scheduling problem easily, and current corrosion testing machine degree of automation is not high, and efficiency of software testing is lower.
Disclosure of Invention
The purpose of this patent is in order to provide an automatic corrosion testing machine, has solved the accuracy problem of puddler location to the efficiency of operation has been improved.
According to the embodiment of the invention, the automatic corrosion testing machine comprises:
a shell which is assembled by a plurality of plates and is provided with an accommodating space;
the bath is fixedly arranged in the accommodating space of the shell and is provided with a bath cavity with an opening at the upper end for providing a constant temperature environment;
the rust test cup assemblies are fixed in a bath cavity of the bath and used for liquid phase rust tests;
each rust test cup component corresponds to one group of motor stirring devices respectively and is used for stirring the oil mixed liquid to be tested in the rust test cup component;
each motor lifting device controls the lifting of one group of motor stirring devices respectively and is used for inserting or lifting a stirring rod of each motor stirring device into or out of the corrosion test cup assembly;
and the control assembly is used for controlling the operation of the whole machine, controlling the temperature and setting test parameters.
Preferably, the upper end of the bath is fixedly provided with an upper cover plate, the upper cover plate penetrates through a plurality of test cup mounting holes which are uniformly distributed, the corrosion test cup assembly is inserted into the test cup mounting holes, the bath is also inserted with a heating pipe and a liquid level meter, and the side wall of the upper end of the bath is provided with an overflow port, a water inlet and a water discharge port.
Preferably, the inner wall of the test cup mounting hole is also inserted with at least 2 pressure plates which are uniformly distributed and extend towards the bottom of the bath tank, and the pressure plates are used for fixing the corrosion test cup assembly.
Preferably, the corrosion test cup assembly comprises a corrosion cup with an upper end opening and a cup cover connected with the upper end of the corrosion cup in an overlapping mode, the cup cover is provided with a stirring rod opening, a thermometer opening and a corrosion test rod opening, and the stirring rod, the thermometer and the corrosion test rod are placed in the corrosion cup respectively.
Preferably, the motor stirring device includes:
the output end of the stirring motor is fixedly provided with a rotating shaft; the stirring motor adopts a direct-current constant-speed motor;
one end of the rotating shaft, which is far away from the motor, is inserted at the upper end of the motor fixing head and is fixedly connected with the motor fixing head;
the stirring rod fixing head is fixed or separated from the lower end of the motor fixing head through attraction or repulsion of magnetic poles;
and the stirring rod is tightly fixed with the stirring rod fixing head, and the central shaft of the stirring rod fixing head are positioned on the same axis.
Preferably, the motor fixed head lower extreme inwards extends fixed mounting has a plurality of even numbers that even number that even annular distributes to right first strong magnet, the inside extension fixed mounting in puddler fixed head upper end has a plurality of even numbers that even annular distributes to right second strong magnet, the quantity of second strong magnet with the quantity of first strong magnet is the same, and the polarity of two adjacent first strong magnets is opposite, and the polarity of two adjacent second strong magnets is opposite.
Preferably, the lower end of the motor fixing head is provided with an insertion hole inwards along the central axis, the upper end of the stirring rod penetrates through the stirring rod fixing head and is inserted into the insertion hole, the stirring rod is in clearance fit with the insertion hole, and the top of the stirring rod is not in contact with the bottom of the insertion hole.
Preferably, motor elevating gear includes fixed mounting and is in linear push rod in the accommodation space of casing, the linear push rod top is run through the roof and the fixed mounting of casing have and are located casing top and horizontal distribution's motor mounting panel, the motor mounting panel is close to the one end fixed mounting of bath has motor agitating unit, still including running through the motor mounting panel and to the hollow shaft guide arm that extends in the accommodation space of casing, the hollow shaft guide arm with motor mounting panel fixed connection, still fixed mounting has the bearing on the roof of casing, the hollow shaft guide arm runs through the bearing and rather than sliding connection.
Preferably, the top of the shell is also fixedly provided with a travel switch, and the travel switch is located under the motor mounting plate and used for limiting the downward displacement distance of the motor mounting plate.
Preferably, control assembly includes master switch, touch control screen, first relay group, second relay group, solid state relay and power, first relay group with motor agitating unit electricity is connected, second relay group with motor elevating gear electricity is connected, solid state relay with the heating pipe electricity in the bath is connected.
The invention has the beneficial effects that:
the linear push rod is arranged in the shell, the linear push rod controls the motor stirring device fixed on the motor mounting plate to ascend and descend, the automatic operation of a corrosion test is realized through the control assembly, the upper end of the shell also comprises a travel switch, when the linear push rod controls the motor mounting plate to touch the travel switch in the descending process of the motor stirring device, the linear push rod automatically stops descending, the stirring rod in the corrosion cup just reaches a preset value at the moment, the uniformity of the height of the stirring rod is improved, the accuracy and the repeatability of the test are improved, and the collision of the stirring rod to the bottom of the corrosion cup in the descending process is avoided; the motor fixing head and the stirring rod fixing head in the motor stirring device are mounted or dismounted in a magnetic pole attracting or repelling mode, so that the stirring rod mounting efficiency is improved, and the eccentric problem of the stirring rod in the mounting process is avoided; still include the clamp plate of inside extension on the test cup mounting hole, can play the effect of centre gripping to the corrosion cup, avoid its flow of solution in the bath and the phenomenon that appears rocking, further improved experimental accuracy.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a front view of an automatic corrosion tester according to the present invention;
FIG. 2 is a top view of the automatic corrosion tester according to the present invention;
FIG. 3 is a side sectional view A-A of the automatic corrosion tester according to the present invention;
FIG. 4 is a top sectional view B-B of the automatic corrosion tester according to the present invention;
FIG. 5 is a schematic structural diagram of a motor stirring apparatus according to the present invention;
fig. 6 is a sectional view of a motor fixing head according to the present invention;
fig. 7 is a sectional view of a fixing head of a stirring rod according to the present invention.
In the figure: 1-shell, 2-main switch, 3-touch control screen, 4-stirring device, 5-water inlet valve, 6-supporting leg, 7-linear push rod, 8-heating pipe, 9-liquid discharging pipe, 10-bath, 11-pressing plate, 12-upper cover plate, 13-cup cover, 14-liquid level meter, 15-motor mounting plate, 16-hollow shaft guide rod, 17-bearing, 18-travel switch, 19-stirring rod, 20-first relay group, 21-second relay group, 22-power supply, 23-solid-state relay, 24-ceramic pump, 25-stirring motor, 26-rotating shaft, 27-motor fixing head, 28-first strong magnet, 29-second strong magnet, 30-stirring rod fixing head, stirring rod, etc, 31-jack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, the present invention provides an automatic corrosion tester, comprising:
a housing 1 assembled by a plurality of plates and having an accommodating space; the lower end of the shell 1 is also fixedly provided with rubber legs which are distributed at four corners of the lower end of the shell 1;
a bath 10 fixedly installed in the accommodating space of the housing 1 and having a bath cavity with an open upper end for providing a constant temperature environment; the bath 10 can be filled with water or oil through the water inlet valve 5 (or directly), and then a constant temperature environment is formed through the heating pipe 8; the bath 10 can be integrally formed with the plate of the shell 1, and can also be fixed in the shell 1 by welding or screw installation; in addition, in order to reduce the amplitude of the temperature change of the solution in the bath 10, a heat insulation material is arranged on the outer side of the bath 10, so that the temperature stability in the test process is improved;
the rust test cup assemblies are fixed in the bath cavity of the bath 10 and used for liquid phase rust tests;
each rust test cup component corresponds to one group of motor stirring devices 4 and is used for stirring the oil mixed liquid to be tested in the rust test cup component;
each motor lifting device controls the lifting of one group of motor stirring devices 4 and is used for inserting or lifting a stirring rod 19 of each motor stirring device 4 into or out of the corrosion test cup assembly;
and the control assembly is used for controlling the operation of the whole machine, controlling the temperature and setting test parameters.
As an embodiment of the invention, an upper cover plate 12 is fixedly installed at the upper end of a bath 10, the upper cover plate 12 can also be clamped at the upper end of the bath 10, so that the upper cover plate 12 can be conveniently detached, a plurality of uniformly distributed test cup installation holes penetrate through the upper cover plate 12, a corrosion test cup assembly is inserted in the test cup installation holes, a heating pipe 8 and a liquid level meter 14 are further inserted in the bath 10, the heating pipe 8 is mainly used for heating solution in the bath 10 and keeping the solution in the bath 10 in a constant temperature environment, the liquid level meter 14 is mainly used for monitoring the amount of the solution in the bath 10, when the liquid level is lower than a safety value, an alarm is given, and an overflow port, a water inlet and a water drain port are formed in the side wall of the upper end of the bath 10. The overflow port of the invention discharges the overflowed solution out of the shell 1 through a pipeline and can be directly discharged into a water pool, or the overflow port is connected with a liquid discharge pipe 9 at the lower end of a bath 10 through a pipeline, the overflowed water can be discharged without passing through a valve on the liquid discharge pipe 9, a water inlet is connected with a water inlet valve 5 through a pipeline, the water inlet valve 5 is connected with the water outlet end of a ceramic pump 24 through a pipeline, the water discharge port is connected with the liquid discharge pipe 9, the liquid in the bath 10 can be discharged into a liquid collecting device arranged at the outer side of the shell 1 through the liquid discharge pipe 9, and the water discharge pipe 9 is provided with a. In addition, a circulation stirring pump (not shown) for uniformly mixing the liquid in the bath 10 and making the temperature field uniform and a temperature sensor (not shown) for monitoring the temperature of the solution in the bath 10 are installed in the bath 10.
In order to improve the stability of the assembly of the rust test cup assembly, at least 2 pressure plates 11 which extend to the bottom of the bath 10 and are uniformly distributed are inserted into the inner wall of the mounting hole of the test cup and used for fixing the rust test cup assembly.
The corrosion test cup component comprises a corrosion cup with an upper end opening and a cup cover 13 connected with the upper end of the corrosion cup in an overlapping mode, the cup cover 13 is provided with a stirring rod 19 opening, a thermometer opening and a corrosion test rod opening, and the stirring rod 19, the thermometer and the corrosion test rod are placed in the corrosion cup respectively. When the rust cup is inserted into the test cup mounting hole, the cup edge extending outwards through the upper end of the rust cup is clamped in the test cup mounting hole, the pressing plate 11 in the test cup mounting hole can clamp the rust cup, the phenomenon that the rust cup shakes due to the flow of solution in the bath 10 is avoided, and the test accuracy is further improved.
In order to solve the problem that the loading and unloading of current puddler 19 existence is troublesome, the off-centre appears easily, motor agitating unit 4 that this application designed includes:
the output end of the stirring motor 25 is fixedly provided with a rotating shaft 26; the stirring motor 25 of the present application is a direct current constant speed motor;
one end of the rotating shaft 26, which is far away from the motor, is inserted into the upper end of the motor fixing head 27 and is fixedly connected with the motor fixing head 27;
the stirring rod fixing head 30 is fixed or separated with the lower end of the motor fixing head 27 through attraction or repulsion of magnetic poles;
and the stirring rod 19 is tightly fixed with the stirring rod fixing head 30, and the central shaft of the stirring rod 19 and the central shaft of the stirring rod fixing head 30 are positioned on the same axial center. For the mounting mode of the stirring rod 19 and the stirring fixing head, a through hole penetrates through the stirring rod fixing head 30 along the central shaft, the stirring rod 19 is inserted into the through hole, after the distance between the lower end of the stirring rod 19 and the bottom of the test container is adjusted in advance, the stirring rod 19 and the stirring rod fixing head 30 are tightly fixed in a gluing mode and the like, in order to ensure that the fixed rod is not eccentric during mounting, the inner diameter of the through hole is slightly larger than the outer diameter of the stirring rod 19, and therefore mounting errors are reduced.
Specifically, the motor fixed head 27 lower extreme inwards extends fixed mounting has a plurality of even numbers that even number that even annular distributes to first strong magnet 28, the inside extension fixed mounting in puddler fixed head 30 upper end has a plurality of even numbers that even annular distributes to right second strong magnet 29, the quantity of second strong magnet 29 with first strong magnet 28's quantity is the same, and two adjacent first strong magnets 28's polarity is opposite, and two adjacent second strong magnets 29's polarity is opposite. When the stirring rod fixing head 30 and the motor fixing head 27 are fixedly connected through the principle of opposite attraction, when the stirring rod fixing head 30 needs to be detached from the motor fixing head 27, the first strong magnet 28 and the second strong magnet 29 with the same polarity are enabled to correspond only by rotating the stirring rod fixing head 30 for a certain angle, so that the stirring rod fixing head 30 and the motor fixing head 27 are separated under the principle of like polarity repulsion, and the detaching efficiency of the stirring rod 19 is greatly improved.
In order to further solve the problem that the stirring rod 19 is eccentric during installation, the lower end of the motor fixing head 27 is provided with an insertion hole 31 inwards along the central axis, the upper end of the stirring rod 19 penetrates through the stirring rod fixing head 30 and is inserted into the insertion hole 31, the stirring rod 19 is in clearance fit with the insertion hole 31, and the top of the stirring rod 19 is not in contact with the bottom of the insertion hole 31.
In addition, the puddler 19 of this application all adopts cold working process with the stirring rake of fixing on puddler 19, and the stirring rake inlays on puddler 19 through interference fit, stops the emergence of the easy corrosion phenomenon that the welding caused.
In order to improve the experimental degree of automation of corrosion, motor elevating gear includes fixed mounting and is in sharp push rod 7 in the accommodation space of casing 1, sharp push rod 7 top is run through roof and fixed mounting of casing 1 have and is located 1 top of casing and horizontal distribution's motor mounting panel 15, motor mounting panel 15 is close to the one end fixed mounting of bath 10 has motor agitating unit 4, still including running through motor mounting panel 15 and to hollow shaft guide 16 that extends in the accommodation space of casing 1, hollow shaft guide 16 with 15 fixed connection of motor mounting panel, it has bearing 17 still to fix on the roof of casing 1, hollow shaft guide 16 runs through bearing 17 and rather than sliding connection. The hollow shaft guide pipe plays a role in positioning, displacement deviation of the motor stirring device 4 during ascending and descending is avoided, and therefore the stirring rod 19 is located on the shaft center of the corrosion cup, the inner portion of the hollow shaft guide pipe is hollow, the power supply line for the stirring motor 25 is used for concealed wiring, and the diameter of the top of the linear push rod 7 is large, so that the motor mounting plate is good in fixing stability, and the phenomenon that one end of the motor stirring device 4 is fixed to drop does not exist.
In order to improve the accuracy of the motor lifting device for controlling the position of the motor stirring device 4, a travel switch 18 is fixedly arranged on the top of the shell 1, the travel switch 18 is positioned under the motor mounting plate 15 and used for limiting the downward displacement distance of the motor mounting plate 15, when the linear push rod 7 controls the motor mounting plate 15 to touch the travel switch 18 in the descending process of the motor stirring device 4, the linear push rod 7 automatically stops descending, the stirring rod 19 positioned in the corrosion cup just reaches a preset value at the moment, the uniformity of the distance from the stirring rod 19 to the bottom of the corrosion cup is improved, the accuracy and the repeatability of a test are improved, and the stirring rod 19 is prevented from colliding with the bottom of the corrosion cup in the descending process; and for the straight push rod 7 to control the motor stirring device 4 to ascend, the stirring rod 19 can be completely positioned above the rusty cup only when the straight push rod 7 reaches the maximum range of upward displacement, and the stirring rod is positioned at the maximum range according to the selection of the type of the straight push rod 7.
In order to realize the automated control among the corrosion test process, the control assembly of this application includes master switch 2, touch control screen 3, first relay group 20, second relay group 21, solid state relay 23 and power 22, first relay group 20 with agitator motor 25 in the motor agitating unit 4 is connected electrically, second relay group 21 with sharp push rod 7 electricity among the motor elevating gear is connected, solid state relay 23 with heating pipe 8 electricity in the bath 10 is connected. Touch control screen 3 in this application includes the control to operation such as linear push rod 7, agitator motor 25, heating pipe 8, and can input test parameter, like heating temperature, reaction time etc..
The working process is as follows: firstly, adding a proper amount of water or oil into a bath 10, heating to a preset temperature, inserting a beaker filled with an oil phase mixed solution to be tested into a test cup mounting hole, sleeving a beaker cover 13 on a stirring rod 19, then controlling a linear push rod 7 to move downwards until a motor mounting plate 15 touches a travel switch 18, stopping the stirring rod 19 at a preset position, overlapping the beaker cover 13 on an upper cover plate 12, inserting a corrosion rod into the corrosion cup when the temperature in the corrosion cup reaches the preset value, starting timing, and controlling the linear push rod 7 to move upwards to the maximum range through a switch on a touch control screen 3 when the test time is up and the stirring rod 19 needs to be moved out of the corrosion cup, thus completing a test.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. An automatic corrosion tester, comprising:
a shell which is assembled by a plurality of plates and is provided with an accommodating space;
the bath is fixedly arranged in the accommodating space of the shell and is provided with a bath cavity with an opening at the upper end for providing a constant temperature environment;
the rust test cup assemblies are fixed in a bath cavity of the bath and used for liquid phase rust tests;
each rust test cup component corresponds to one group of motor stirring devices respectively and is used for stirring the oil mixed liquid to be tested in the rust test cup component;
each motor lifting device controls the lifting of one group of motor stirring devices respectively and is used for inserting or lifting a stirring rod of each motor stirring device into or out of the corrosion test cup assembly;
and the control assembly is used for controlling the operation of the whole machine, controlling the temperature and setting test parameters.
2. The automatic corrosion testing machine of claim 1, wherein an upper cover plate is fixedly installed at the upper end of the bath, a plurality of uniformly distributed test cup installation holes are formed through the upper cover plate, the corrosion test cup assembly is inserted into the test cup installation holes, a heating pipe and a liquid level meter are further inserted into the bath, and an overflow port, a water inlet and a water discharge port are formed in the side wall of the upper end of the bath.
3. The automatic corrosion testing machine of claim 2, wherein the inner wall of the test cup mounting hole is further inserted with at least 2 evenly distributed pressing plates extending towards the bottom of the bath for fixing the corrosion test cup assembly.
4. The automatic corrosion testing machine of claim 1, wherein the corrosion testing cup assembly comprises a corrosion cup with an open upper end and a cup cover lapped on the upper end of the corrosion cup, the cup cover is provided with a stirring rod opening, a thermometer opening and a corrosion testing rod opening, and the stirring rod, the thermometer and the corrosion testing rod are respectively placed in the corrosion cup.
5. The automatic corrosion tester of claim 1, wherein the motor agitation means comprises:
the output end of the stirring motor is fixedly provided with a rotating shaft; the stirring motor adopts a direct-current constant-speed motor;
one end of the rotating shaft, which is far away from the motor, is inserted at the upper end of the motor fixing head and is fixedly connected with the motor fixing head;
the stirring rod fixing head is fixed or separated from the lower end of the motor fixing head through attraction or repulsion of magnetic poles;
and the stirring rod is tightly fixed with the stirring rod fixing head, and the central shaft of the stirring rod fixing head are positioned on the same axis.
6. The automatic corrosion testing machine of claim 5, wherein the motor fixing head lower end inwardly extends and is fixedly provided with a plurality of even number pairs of first strong magnets which are uniformly and annularly distributed, the stirring rod fixing head upper end inwardly extends and is fixedly provided with a plurality of even number pairs of second strong magnets which are uniformly and annularly distributed, the quantity of the second strong magnets is the same as that of the first strong magnets, the polarities of two adjacent first strong magnets are opposite, and the polarities of two adjacent second strong magnets are opposite.
7. The automatic corrosion testing machine of claim 6, wherein the lower end of the motor fixing head is provided with an insertion hole inwards along the central axis, the upper end of the stirring rod penetrates through the stirring rod fixing head and is inserted into the insertion hole, the stirring rod is in clearance fit with the insertion hole, and the top of the stirring rod is not in contact with the bottom of the insertion hole.
8. The automatic corrosion testing machine of claim 1, wherein the motor lifting device comprises a linear push rod fixedly mounted in the accommodating space of the housing, the top of the linear push rod penetrates through the top wall of the housing and is fixedly provided with a motor mounting plate which is located above the housing and horizontally distributed, the motor mounting plate is close to one end of the bath and is fixedly provided with a motor stirring device, the automatic corrosion testing machine further comprises a hollow shaft guide rod penetrating through the motor mounting plate and extending into the accommodating space of the housing, the hollow shaft guide rod is fixedly connected with the motor mounting plate, the top wall of the housing is further fixedly provided with a bearing, and the hollow shaft guide rod penetrates through the bearing and is in sliding connection with the bearing.
9. The automatic corrosion testing machine of claim 8, wherein a travel switch is further fixedly arranged on the top of the housing, and the travel switch is located right below the motor mounting plate and used for limiting the downward displacement distance of the motor mounting plate.
10. The automatic corrosion testing machine of claim 1, wherein the control assembly comprises a main switch, a touch control screen, a first relay set, a second relay set, a solid state relay and a power supply, the first relay set is electrically connected with the motor stirring device, the second relay set is electrically connected with the motor lifting device, and the solid state relay is electrically connected with the heating pipe in the bath tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010267184.3A CN111562357A (en) | 2020-04-08 | 2020-04-08 | Automatic corrosion testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010267184.3A CN111562357A (en) | 2020-04-08 | 2020-04-08 | Automatic corrosion testing machine |
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| CN111562357A true CN111562357A (en) | 2020-08-21 |
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| CN202010267184.3A Pending CN111562357A (en) | 2020-04-08 | 2020-04-08 | Automatic corrosion testing machine |
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