CN114460126A - Automatic tester for dropping point of lubricating grease, test tube assembly and testing method thereof - Google Patents
Automatic tester for dropping point of lubricating grease, test tube assembly and testing method thereof Download PDFInfo
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- CN114460126A CN114460126A CN202111659176.4A CN202111659176A CN114460126A CN 114460126 A CN114460126 A CN 114460126A CN 202111659176 A CN202111659176 A CN 202111659176A CN 114460126 A CN114460126 A CN 114460126A
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- 239000004519 grease Substances 0.000 title claims abstract description 110
- 238000012360 testing method Methods 0.000 title claims abstract description 76
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 81
- 239000002184 metal Substances 0.000 claims abstract description 81
- 239000011521 glass Substances 0.000 claims abstract description 38
- 239000013307 optical fiber Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 abstract description 4
- 239000006071 cream Substances 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract description 2
- 239000000155 melt Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 15
- 238000002474 experimental method Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 210000003128 head Anatomy 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000006467 substitution reaction 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
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/12—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of critical point; of other phase change
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
- B01L3/5082—Test tubes per se
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Abstract
The invention relates to an automatic measuring device for a dropping point of lubricating grease, a test tube assembly and a measuring method thereof. The sensor includes a fiber optic sensor and a temperature sensor. The drop point determination assembly includes a metal bath housing, a metal bath module, and a cuvette assembly. The top of the metal bath shell is of an open structure, and a metal bath module is contained in the metal bath shell. The first jack that the holding test tube subassembly was seted up to the metal bath module and the second jack of placing temperature sensor, the metal bath module can heat the test tube subassembly of placing in first jack inside so that the moist grease cream of the inside fat cup of test tube subassembly is heated and melts. The time for the first drop of the lubricating grease to drop is detected by arranging the optical fiber sensor, and the temperature values of the temperature sensor and the glass sensor are obtained. The temperature values of the two sensors when the first lubricating grease is dripped can be accurately read, and then the test result of the dripping point tester is accurate. Visual errors of the dropping point judgment of human eyes are eliminated.
Description
Technical Field
The invention relates to the technical field of dropping point measurement, in particular to an automatic measuring device for dropping points of lubricating grease, a test tube assembly and a measuring method of the automatic measuring device.
Background
In the prior art, a dropping point tester is generally used for performing a dropping point test on lubricating grease. The dropping point tester generally comprises a machine base, an oil bath chamber, a heating pipe and the like; when in operation, the grease cup is put into the test tube after the grease cream is coated on the inner wall of the grease cup, and the thermometer is stretched into the grease cup; the test tube was then placed in an oil bath chamber and heated. The corresponding temperature on the thermometer in the lower cup was then recorded by manual observation until the grease in the cup was degreased and the first drop of fluid was dropped. Since the grease dropping point is measured according to the GBT4929-1985 grease dropping point measuring method, when the first grease (i.e. the first fluid) is dropped, the temperature of the thermometer in the grease cup and the temperature of the thermometer in the oil bath are recorded, and the average value of the two temperatures is used as the dropping point of the grease.
At present, the traditional oil bath can carry out a lot of oil in the process of taking out a test tube, so that oil needs to be periodically supplemented into the oil bath chamber after a plurality of tests, and the test steps are increased.
Moreover, when the first grease is dripped, the traditional dripping point tester is manually observed, and then temperature values on two thermometers are respectively recorded, because the first grease is artificially observed to drip, people can feel fatigue, the optimal dripping time of the first grease is easily missed, even if the first grease can be manually checked to drip in time, a certain time is needed for manual reading and recording, the readings of the thermometers in the experimental process are continuously changed, and a certain error can be caused when the temperature is read by naked eyes, so that the temperature values of the two thermometers when the first grease is dripped can not be accurately read, and further the dripping point test result of the dripping point tester is inaccurate.
Disclosure of Invention
Technical problem to be solved
In view of the above disadvantages and shortcomings of the prior art, the present invention provides an automatic measuring device for a dropping point of grease, a test tube assembly and a measuring method thereof, which solves the technical problem that the dropping point test result of a dropping point tester is inaccurate due to the fact that temperature values of two thermometers when first grease is dropped cannot be accurately read.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
in one aspect, a test tube assembly for an automatic grease drip point tester comprises a test tube body and a glass sensor electrically connected with a controller of the automatic grease drip point tester;
a grease cup with an oil dripping hole at the bottom is arranged in the test tube main body, and lubricating grease is contained in the grease cup; the glass sensor is arranged in the test tube main body through the opening at the top of the test tube main body, and the temperature measuring head of the glass sensor extends into the grease cup; the glass sensor is used for detecting the temperature in the grease cup and sending the temperature to the controller according to the requirement.
Optionally, the glass sensor is installed in the test tube main body through a fixing clamp located at the top of the test tube main body.
In another aspect, an automatic grease dropping point tester includes: the device comprises a controller, a sensor electrically connected with the controller and a dropping point measuring component;
the sensor comprises an optical fiber sensor arranged outside the metal bath module and a temperature sensor arranged in the metal bath module;
the dropping point measuring component comprises a metal bath shell, a metal bath module and the test tube component;
the top of the metal bath shell is of an open structure, and the metal bath module is contained in the metal bath shell;
the holding has been seted up to the metal bath module the first jack of test tube subassembly with place temperature sensor's second jack, the metal bath module can to place in inside the first jack the test tube subassembly heats so that inside the test tube subassembly the moist grease of fat cup is heated and is melted.
Optionally, the device further comprises a main shell and a supporting bottom plate, wherein the main shell is in an L-shaped structural shell and comprises a vertically placed controller and a transversely distributed dropping point measuring assembly.
Optionally, the drop point determination assembly further comprises a transverse housing connected to the controller, the metal bath housing being disposed within the transverse housing; the glass sensor and the temperature sensor electrically penetrate through the transverse shell through a lead at one end far away from the temperature measuring head and are connected with the aviation socket.
Optionally, the metal bath housing comprises a bottom bracket, a front panel, a left side panel, a right side panel, and a back panel;
the bottom bracket is fixedly arranged on the supporting bottom plate, and the front plate, the left side plate, the rear plate and the right side plate are sequentially arranged on the top end surface of the bottom bracket around the top end surface of the bottom bracket; the front plate, the left side plate, the rear plate, the right side plate and the bottom bracket are enclosed to form a heat-insulating cavity, and a heat-insulating cotton layer is filled in the heat-insulating cavity;
the rear plate is detachably connected with the left side plate and the right side plate.
Optionally, both the front plate and the rear plate are provided with observation windows, the observation windows extend towards the inside to the side wall of the metal bath module, and the optical fiber sensor is covered in the inner cavity of the metal bath module.
Optionally, the metal bath housing further comprises an insulation board and an upper cover;
the heat preservation plate is arranged at the top of the metal bath module and is buckled at the opening of the metal bath shell through the upper cover.
Optionally, a USB interface is provided on the control box for exporting data.
In another aspect, a method for measuring the dropping point of grease based on the automatic measuring device for dropping point of grease comprises the following steps:
when the first drop of the lubricating grease drips, the optical fiber sensor can automatically detect the dripping of a grease dripping point and send the information of the detected dripping of the grease dripping point to the controller, the controller can receive the information and enable the glass sensor to acquire the temperature in the grease cup as the temperature of the first channel and the temperature sensor to acquire the temperature of the metal bath module as the temperature of the second channel,
and the controller takes the average value of the temperature of the first channel and the temperature of the second channel as the test result of the dropping point temperature test.
(III) advantageous effects
The invention has the beneficial effects that: according to the automatic measuring device, the test tube assembly and the measuring method for the dropping point of the lubricating grease, the dropping time of the first fluid of the lubricating grease is detected by arranging the optical fiber sensor, and the temperature values of the temperature sensor and the glass sensor are obtained. The temperature values of the two sensors when the first lubricating grease is dripped can be accurately read, and then the test result of the dripping point tester is accurate. Visual errors of the dropping point judgment of human eyes are eliminated.
Drawings
FIG. 1 is a schematic front view of an automatic grease dropping point tester according to the present invention;
FIG. 2 is a schematic left side view of an automatic grease drop point tester according to the present invention;
fig. 3 is a schematic view of the test tube assembly of fig. 1.
[ description of reference ]
1: a support base plate; 2: a drop point determination component; 21: a metal bath housing; 211: a bottom bracket; 212: a front plate; 213: a left side plate; 214: a right side plate; 215: a back plate; 216: a heat insulation cotton layer; 218: a thermal insulation board; 217: an upper cover; 22: a metal bath module; 23: a test tube body; 24: a glass sensor; 25: a fat cup; 26: fixing the clamp; 27: fixing a fulcrum; 28: a heating rod; 29: a limiting plate; 3: an optical fiber sensor; 4: a transverse housing; 5: an aviation socket; 6: an observation window; 7: a control box; 8: a touch display screen; 9: a USB interface; 10: rubber feet; 11: a power switch; 12: heat dissipation holes; 13: a temperature sensor; .
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. Where directional terms such as "upper", "lower", "inner" and "outer" are used herein, reference is made to the orientation of FIG. 1.
Referring to fig. 1-2, an automatic measuring device for a dropping point of grease according to an embodiment of the present invention includes: a controller, a sensor electrically connected to the controller, and a drip point measuring assembly 2.
Further, a main housing and a support chassis 1 are included. The main casing body sets up in the top of supporting baseplate 1, has rubber footing 10 in the bottom four corners department of supporting baseplate 1 through the bolt spiro union, and the setting of rubber footing 10 makes supporting baseplate 1's shock attenuation effect better. The main casing body is "L" shape structure casing, and the main casing body includes the control box of vertical placing, and wherein, the controller sets up in the control box and the horizontal distribution dropping point survey subassembly 2.
Further, the controller includes a control box and a control assembly disposed within the control box. The control component is used for receiving signals and sending out control instructions. And a power switch is arranged on the control box 7 and is electrically connected with the control component. The control box 7 is also provided with a heat dissipation hole 12 for dissipating heat of the control assembly. And the side heat dissipation holes 12 are formed by laser cutting and used for dissipating heat of internal electric elements. The control box 7 is provided with a USB interface 9 for exporting data. Specifically, the USB flash disk is inserted into the USB hole, the touch display screen 8 is clicked, and historical data is led out to the USB flash disk.
The drip point determining assembly 2 includes a metal bath housing 21, a metal bath module 22, and a cuvette assembly.
Referring to fig. 3, a test tube assembly for an automatic grease drop tester includes a test tube main body 23 and a glass sensor 24 electrically connected to a controller of the automatic grease drop tester.
The bottom of the inner cavity of the test tube main body 23 protrudes towards the inner side to form a fixed fulcrum 27 for fixing the grease cup 25, so that the grease cup 25 is clamped at the fixed fulcrum 27. Then, lubricating grease is put in the grease cup 25 with the oil dripping hole at the bottom.
Before the grease is put into the grease cup 25, the grease is pressed into the large opening of the grease cup 25 until the grease cup 25 is filled with the grease. Excess grease was removed with a spatula. The grease cup 25 is held in a position where the bottom hole is vertical, the grease cup 25 is lightly pressed, and the polished metal rod is threaded downwards until the metal rod extends out by about 25 mm. The stick is pressed against the fat cup 25 in such a manner as to contact the upper and lower circumferential edges of the fat cup 25. With this contact maintained, the user rotates the grease cup 25 on the metal bar with his index finger, causing him to move spirally downward. The conical grease stick attached to the metal rod was removed, leaving a smooth grease film of repeatable thickness on the inside of the grease cup as the cup eventually slid off the end of the metal rod.
The gauge is put into the test tube, and the glass sensor 24 is inserted into the fixing jig 26 and then into the test tube body 23, and the height of the glass sensor 24 is adjusted so that the glass sensor 24 can contact the inner wall of the gauge.
The gauge is removed and the grease cup 25 and the glass sensor 24 are placed in the clean tube body 23 prepared in advance.
Wherein, glass sensor 24 installs in test tube main part 23 through test tube main part 23's top opening part, makes detection effect more accurate at the inner chamber of glass sensor 24 setting at test tube main part 23, can not influence the formation of lubricated grease in the fat cup 25 moreover. And the temperature measuring head of the glass sensor 24 extends into the grease cup 25. The glass sensor 24 is used to detect the temperature inside the fat cup 25 and send it to the controller as required.
The glass sensor 24 is installed in the test tube main body 23 by a fixing jig 26 located at the top of the test tube main body 23.
It should be noted that the fixing clamp 26 clamps the glass sensor 24 through the elastic material on the upper portion thereof, and then fixes the glass sensor 24 on the top of the inner cavity of the test tube main body 23 through the elastic material on the lower portion thereof, so that the test tube main body 23, the fixing clamp 26 and the glass sensor 24 form an integral structure, thereby ensuring that, in the experimental process, the connection structure among the components is more stable, and the glass sensor 24 can also stretch up and down to reach the height meeting the standard requirement of the lubricating grease. And further improve the precision of the experiment.
The top of the metal bath shell 21 is an open structure, and the metal bath module 22 is contained in the metal bath shell.
It should be noted that, at the bottom of the inner cavity of the metal bath module 22, a heating rod 28 is inserted along the length direction thereof, the heating rod 28 is electrically connected with the controller, and the metal bath module 22 is heated by the control of the control component in the controller to provide a heat source.
Further, the dropping point measuring unit 2 further includes a lateral housing 4 connected to the controller, and a metal bath housing 21 is provided in the lateral housing 4. The glass sensor 24 and the temperature sensor 13 are electrically connected with the aviation socket 5 through the transverse shell 4 by leads at one ends far away from the temperature measuring head. The arrangement of the transverse shell 4 increases the protection effect on the dropping point measuring component 2, so that the experimental effect of dropping point measurement is better.
Further, the metal bath housing 21 includes a bottom bracket 211, a front plate 212, a left side plate 213, a right side plate 214, and a rear plate 215.
The bottom bracket 211 is fixedly installed on the supporting base plate 1, and the top end surface of the bottom bracket 211 is sequentially provided with a front plate 212, a left side plate 213, a rear plate 215 and a right side plate 214 around the periphery thereof. And the front plate 212, the left side plate 213, the rear plate 215, the right side plate 214 and the bottom bracket 211 are enclosed to form a heat-insulating cavity, and the heat-insulating cavity is filled with a heat-insulating cotton layer 216.
It should be noted that the bottom bracket 211 is made of a heat insulating material, and is fixed to the support base plate 1 by 8 bolts to isolate heat generated when the metal bath module 22 is heated from being conducted to the support base plate 1. The support base plate 1 and the metal bath housing 21 are welded together.
The rear plate 215 is detachably connected to the left and right side plates 213 and 214. The back plate 215 is fixed on the left side plate 213 and the right side plate 214 through 8 bolt bolts in a screwed mode, and therefore the heat preservation cotton layer 216 is convenient to place inside the heat preservation cavity.
In this embodiment, the metal bath housing 21 further includes an insulation board 218 and an upper cover 217. The metal bath module 22 and the heat insulation plate 218 are fixed on the metal bath housing 21 by 6 countersunk screws. The insulating cotton layer 216 is used for filling, so that the metal bath shell 21 is not heated, and the heating efficiency of the metal bath module 22 is improved.
Further, both the front plate 212 and the rear plate 215 are provided with observation windows 6, the observation windows 6 extend towards the inside to the side wall of the metal bath module 22, and the optical fiber sensor 3 is covered in the inner cavity of the metal bath module. Specifically, the observation window 6 is used for the debugging process to judge whether the detection of the optical fiber sensor 3 coincides with reality.
Note that there are two optical fiber sensors 3 for redundancy.
The heat insulation plate 218 is disposed on the top of the metal bath module 22 and is fastened to the opening of the metal bath housing 21 through the upper cover 217.
The sensors include a fiber optic sensor 3 disposed outside of the metal bath module 22 and a temperature sensor 13 disposed within the metal bath module 22. Wherein, the optical fiber sensor 3, and the height setting of optical fiber sensor 3 is lower than the rim of a cup of fat cup 2.
It should be noted that the limiting plates 29 are fixed at the front end and the rear end of the metal bath module 22 by fixing bolts, the required optical fiber sensors 3 are installed on the limiting plates 29, the optical fiber sensors 3 are aligned to the positions of the dropping points generated on the test tube main body 23 to detect whether the dropping points occur, when the dropping points occur, the emitted light of the optical fiber sensors 2 is partially blocked by the drops melted by the grease, and the receiving end can collect the received light and determine the dropping points.
The invention provides an automatic measuring device for a dropping point of lubricating grease, which is characterized in that an optical fiber sensor 3 is arranged to detect the dropping time of a first drop of fluid of the lubricating grease, and temperature values of a temperature sensor 13 and a glass sensor 3 are obtained. The temperature values of the two sensors when the first lubricating grease is dripped can be accurately read, and then the test result of the dripping point tester is accurate. Visual errors of the dropping point judgment of human eyes are eliminated.
A measuring method based on an automatic measuring device for dropping point of lubricating grease comprises the following steps:
when the first drop of grease drips, the optical fiber sensor 3 can automatically detect the dripping of a grease dripping point and send the information of detecting the dripping of the grease dripping point to the controller, and the controller can receive the information and enable the glass sensor 24 to acquire the temperature in the grease cup 25 as the temperature of the first channel and the temperature sensor 13 to acquire the temperature of the metal bath module 22 as the temperature of the second channel.
And the controller takes the average value of the temperature of the first channel and the temperature of the second channel as the test result of the dropping point temperature test.
The specific test process comprises the following steps:
s1, respectively placing the grease cup 25 filled with the lubricating grease and the glass sensor 24 into the test tube main body 23;
s2, inputting an oil sample number through the outside, and corresponding to a corresponding control heating program in the controller through the oil sample number;
s3, inserting the test tube main body 23 in the step S2 into the jack of the metal bath module 22;
s4, starting the dropping point tester main body 2, and automatically heating the metal bath module 22 by the controller so as to heat the lubricating grease in the grease cup 25;
when the first drop of grease drips, the optical fiber sensor 3 detects the dropping point of the grease, acquires the temperature of the locking glass sensor 242 and the temperature of the temperature sensor 23, and then feeds back the temperature to the controller and displays the temperature on the touch display screen 8, and meanwhile, the controller can directly calculate the average value of the temperatures as an experimental result.
S5, the dropping point measuring device main body 2 is stopped, and the test is completed.
In the present commercial embodiment, the aluminum metal bath module 22 is used to heat the test tube body 23, thereby eliminating all the disadvantages of the conventional instrument using an oil bath. For example, the traditional oil bath can carry out a lot of oil when the test tube is taken out, and the metal bath is very clean; the oil can expand and rise along with the rise of the temperature, the height of the test tube needs to be controlled in the whole process of the experiment, otherwise, the oil can enter the test tube; the medium oil needs to be replaced according to different experimental temperatures, and the metal bath does not need; the medium oil is reduced along with the experiment process, and needs to be added periodically, and the metal bath is not needed; the medium oil can generate oil smoke in the process of heating at high temperature, and the metal bath has no oil smoke.
In this embodiment, the temperature is controlled by a program set in the control module. In the standard method, strict and complex requirements are imposed on the temperature rise speed of the oil bath, and usually a user needs to control the voltage at two ends of a heating pipe used for heating the oil bath by adjusting a voltmeter and change the voltage so as to change the heating power, so that the temperature rise speed is controlled. The method comprises the steps of firstly heating at a temperature of 4-7 ℃/min until the oil bath temperature reaches a temperature 17 ℃ lower than the expected dropping point, then reducing the heating speed, and heating the oil bath at a speed of 1-1.5 ℃/min. This is quite difficult for the user. The control is difficult to be proper, so that the experiment is often not qualified, the result is wasted, long experiment time is wasted, and the experiment needs to wait for the next cooling.
However, in the present embodiment, when the metal bath module 22 is heated by the control unit, the heating rate of the metal bath module 22 is automatically controlled by the automatic device of the control unit according to the edited program. The temperature rise speed of 4-7 ℃/min can be set to 5.5 ℃/min, and the temperature rise speed of 1-1.5 ℃/min can be set to 1.2 ℃/min. So that the dropping point measuring device can automatically and accurately heat up, and the accurate realization of experimental conditions is ensured.
The final judgment of the dropping point is a key step of the experiment. The traditional equipment needs to be manually arranged beside the equipment, and the heating rate is controlled while observing whether dripping points occur. The standard requires that the first drop of fluid to be dropped from the hole in the grease cup, considered the drop point to occur, be immediately recorded with the thermometer temperature on the grease cup and the thermometer temperature in the oil bath. And the average of the two was calculated as the final reported drop point temperature. The series of work needs to be completed by the user. In the present embodiment, the time for the first fluid drop of the grease is detected by providing the optical fiber sensor 3, and the temperature values of the temperature sensor 13 and the glass sensor 3 are obtained. The temperature values of the two sensors when the first lubricating grease is dripped can be accurately read, and then the test result of the dripping point tester is accurate. Visual errors of the dropping point judgment of human eyes are eliminated. The occurrence of the dropping point can be automatically judged through the optical fiber sensor, the temperatures of the glass sensor and the temperature sensor 13 in the test tube are simultaneously locked, and the result is automatically calculated and displayed on the touch display screen 8.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (10)
1. A test tube assembly for an automatic grease drip point tester, comprising a test tube main body (23) and a glass sensor (24) electrically connected to a controller of the automatic grease drip point tester;
a grease cup (25) with an oil dripping hole at the bottom is arranged in the test tube main body (23), and lubricating grease is contained in the grease cup (25); the glass sensor (24) is arranged in the test tube main body (23) through the opening at the top of the test tube main body (23), and the temperature measuring head of the glass sensor (24) extends into the grease cup (25); the glass sensor (24) is used for detecting the temperature in the grease cup (25) and sending the temperature to the controller according to the requirement.
2. The cuvette assembly for an automatic measuring device of grease dropping point according to claim 1, wherein the glass sensor (24) is installed in the cuvette body (23) by a fixing jig (26) located at the top of the cuvette body (23).
3. An automatic dropping point tester for lubricating grease, comprising: the device comprises a controller, a sensor electrically connected with the controller and a dropping point measuring component (2);
the sensors comprise an optical fiber sensor (3) arranged outside the metal bath module (22) and a temperature sensor (13) arranged inside the metal bath module (22);
the drip point determination assembly (2) comprising a metal bath housing (21), a metal bath module (22) and a cuvette assembly according to claim 1 or 2;
the top of the metal bath shell (21) is of an open structure, and the metal bath module (22) is contained in the metal bath shell;
the holding has been seted up in metal bath module (22) the first jack of test tube subassembly with place the second jack of temperature sensor (13), metal bath module (22) can to place in inside the first jack the test tube subassembly heats so that the moist grease of the inside fat cup (25) of test tube subassembly is heated and is melted.
4. The automatic grease drop point tester according to claim 3, further comprising a main housing and a support base plate (1), wherein the main housing is an L-shaped structural housing, and the main housing comprises a vertically placed controller and laterally distributed drop point testing components (2).
5. The automatic grease drop point tester according to claim 4, wherein the drop point tester module (2) further comprises a lateral housing (4) connected to the controller, the metal bath housing (21) being disposed within the lateral housing (4); the glass sensor (24) and the temperature sensor (13) electrically penetrate through the transverse shell (4) through leads at one end far away from the temperature measuring head and are connected with the aviation socket (5).
6. The automatic grease drip point tester according to claim 5, wherein the metal bath housing (21) comprises a bottom bracket (211), a front plate (212), a left side plate (213), a right side plate (214), and a rear plate (215);
the bottom support (211) is fixedly arranged on the support base plate (1), and the front plate (212), the left side plate (213), the rear plate (215) and the right side plate (214) are sequentially arranged on the top end surface of the bottom support (211) around the periphery of the top end surface; the front plate (212), the left side plate (213), the rear plate (215), the right side plate (214) and the bottom support (211) are enclosed to form a heat-preservation cavity, and a heat-preservation cotton layer (216) is filled in the heat-preservation cavity;
the rear plate (215) is detachably connected to the left side plate (213) and the right side plate (214).
7. The automatic grease dropping point tester according to claim 6, wherein an observation window (6) is provided on each of the front plate (212) and the rear plate (215), the observation window (6) extends inward to a side wall of the metal bath module (22), and the optical fiber sensor (3) is housed in an inner cavity thereof.
8. The automatic grease drip point tester according to claim 7, wherein the metal bath housing (21) further comprises an insulation board (218) and an upper cover (217);
the heat insulation plate (218) is arranged at the top of the metal bath module (22) and is buckled at an opening of the metal bath shell (21) through the upper cover (217).
9. The automatic grease drop point tester according to claim 7, wherein the control box (7) is provided with a USB interface (9) for data export.
10. A method for measuring a grease dropping point automatic measuring device according to any one of claims 3 to 9, comprising the steps of:
when the first drop of the lubricating grease drips, the optical fiber sensor (3) can automatically detect the dripping of a grease dripping point and send the information of the detected dripping of the grease dripping point to the controller, the controller can receive the information and enable the glass sensor (24) to acquire the temperature in the grease cup (25) as the temperature of a first channel and the temperature sensor (13) to acquire the temperature of the metal bath module (22) as the temperature of a second channel,
and the controller takes the average value of the temperature of the first channel and the temperature of the second channel as the test result of the dropping point temperature test.
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| CN202111659176.4A CN114460126A (en) | 2021-12-30 | 2021-12-30 | Automatic tester for dropping point of lubricating grease, test tube assembly and testing method thereof |
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| CN202111659176.4A CN114460126A (en) | 2021-12-30 | 2021-12-30 | Automatic tester for dropping point of lubricating grease, test tube assembly and testing method thereof |
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Effective date of registration: 20230922 Address after: Building B, Meilong Jiayuan, No. 57 Nanwu Road, Heping District, Shenyang City, Liaoning Province, 110005 Applicant after: LIAONING HUAKE PETROLEUM APPARATUS SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 110004 No. 3 Lane 9, Wenhua Road, Heping District, Liaoning, Shenyang Applicant before: LIAONING PROVINCIAL INSTITUTE OF MEASUREMENT Applicant before: LIAONING HUAKE PETROLEUM APPARATUS SCIENCE & TECHNOLOGY Co.,Ltd. |