CN217542952U - Automatic tester for dropping point of lubricating grease - Google Patents
Automatic tester for dropping point of lubricating grease Download PDFInfo
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- CN217542952U CN217542952U CN202123406958.5U CN202123406958U CN217542952U CN 217542952 U CN217542952 U CN 217542952U CN 202123406958 U CN202123406958 U CN 202123406958U CN 217542952 U CN217542952 U CN 217542952U
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Abstract
The utility model relates to a lubricating grease dropping point automatic measuring ware, including controller, sensor and dropping point survey subassembly. 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 utility model relates to a dropping point survey technical field especially relates to a lubricating grease dropping point automatic measure ware.
Background
Currently, a drop point tester is commonly used to perform a drop point test on grease. When measuring the grease dropping point according to the GBT 4929-1985 grease dropping point measuring method, the temperature of the thermometer in the grease cup and the temperature of the thermometer in the oil bath are recorded when the first grease (i.e. the first fluid) is dropped, and the average value of the two temperatures is used as the dropping point of the grease.
At present, when the first lubricating grease is dripped, the existing dripping point tester is manually observed, and temperature values on two thermometers are respectively recorded, because the first lubricating grease is artificially observed to drip, people can feel fatigue, the dripping time of the first lubricating grease which is the best is easily missed, even if the first lubricating grease is artificially observed to drip, 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, therefore, the temperature values of the two thermometers when the first lubricating grease is dripped can not be accurately read, and further the dripping point test result of the dripping point tester is inaccurate.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In view of the above-mentioned shortcoming of prior art, not enough, the utility model provides a lubricating grease dropping point automatic measure ware, it has solved the temperature value of unable accurate reading two thermometers when first lubricating grease drips, and then causes the unsafe technical problem of dropping point test result of dropping point tester.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
in one 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 drop point determination assembly comprises a metal bath housing, a metal bath module and a plurality of cuvette assemblies;
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 metal bath module is provided with a plurality of first jacks for accommodating the test tube assemblies and a second jack for placing the temperature sensor, and can heat the test tube assemblies placed in the first jacks so as to melt grease moistening cream of the grease cups in the test tube assemblies by heating;
the sensor comprises an optical fiber sensor arranged outside the metal bath module and a temperature sensor arranged in the metal bath module;
the height of the optical fiber sensor is arranged at a position lower than the cup opening of the fat cup.
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 conducting wire 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, the controller includes a control box disposed on the support base plate and a control assembly disposed in the control box;
the top of the control box is provided with a touch display screen; the touch display screen is electrically connected with the controller and used for displaying the temperature of the temperature sensor and the temperature of the glass sensor.
Optionally, a USB interface is provided on the control box for exporting data.
Optionally, a plurality of rubber feet are arranged on the supporting bottom plate.
Optionally, a heat dissipation hole is formed in the outer side wall of the control box.
(III) advantageous effects
The utility model has the advantages that: the utility model discloses a lubricating grease dropping point automatic measuring ware through the time that sets up the first drop fluid drippage of optical fiber sensor detection lubricating grease to acquire temperature sensor and glass sensor's temperature value. 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 measuring device for dropping point of grease according to the present invention;
FIG. 2 is a schematic left side view of the automatic measuring device for dropping point of lubricating grease 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 heat-insulating 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 a clamp; 27: fixing a fulcrum; 28: heating a 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: and a temperature sensor.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings. As used herein, the terms "upper," "lower," "inner," and "outer" refer to the orientation of FIG. 1.
Referring to fig. 1-2, an embodiment of the present invention provides an automatic measuring device for dropping point of lubricating grease, including: a controller, a sensor electrically connected to the controller, and a drip point measuring assembly 2.
Further, a main housing and a support base plate 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 an L-shaped structure casing and comprises a vertically placed control box, wherein a controller is arranged in the control box and the drip point measuring components 2 are transversely distributed.
Further, the controller includes the control box and sets up the control assembly in 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 pivot 27 for fixing the grease cup 25, so that the grease cup 25 is clamped at the fixed pivot 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 first 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 penetrated downwards until the metal rod extends out by about 25mm. 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 body 23 through test tube body 23's top opening part, sets up at test tube body 23's inner chamber at glass sensor 24 and makes detection effect more accurate, 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 control of the control component in the controller heats the metal bath module 22 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 the 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 on the support base plate 1 by 8 bolts to isolate the heat generated by heating the metal bath module 22 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 an optical fiber sensor 3 disposed outside the metal bath module 22 and a temperature sensor 13 disposed inside 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 utility model provides a lubricating grease dropping point automatic measuring ware through setting up the time that optical fiber sensor 3 detected the first drop fluid drippage of lubricating grease to acquire temperature sensor 13 and glass sensor 3's temperature value. 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 points 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:
s1, respectively placing a grease cup 25 filled with lubricating grease and a glass sensor 24 into a 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 using the controller so as to heat 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 24 and the temperature of the temperature sensor 13, and then feeds back the temperature to the controller to be displayed on the touch display screen 8, and meanwhile, the controller can directly calculate the average value of the temperatures as an experimental result.
S5, stopping the dropping point measuring device main body 2 and finishing the test.
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 requires that the temperature is increased at 4-7 deg.C/min until the oil bath temperature reaches 17 deg.C lower than the expected dropping point, then the heating speed is reduced, and the oil bath is heated at the speed of 1-1.5 deg.C/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 rising speed of 4-7 ℃/min can be set to 5.5 ℃/min, and the temperature rising speed of 1-1.5 ℃/min can be set to 1.2 ℃/min. So that the dropping point tester can automatically and accurately heat up, and the accurate realization of experimental conditions is ensured.
The final determination 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 dispensed from the orifice of the grease cup, considered to be the drop point, be recorded immediately as the temperature of the thermometer on the grease cup and the temperature of the thermometer 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 "first" 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 limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either internal to the two elements or in an interactive relationship of the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, 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.
While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. An automatic dropping point tester for lubricating grease, comprising: a controller, a sensor electrically connected with the controller and a dropping point measuring component (2);
the drop point determination assembly (2) comprises a metal bath housing (21), a metal bath module (22) and a plurality of test tube assemblies;
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 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 metal bath module (22) is provided with a plurality of first jacks for accommodating the test tube assemblies and a second jack for placing the temperature sensor (13), and the metal bath module (22) can heat the test tube assemblies placed in the first jacks so as to heat and melt grease of a grease cup (25) in the test tube assemblies;
the height of the optical fiber sensor (3) is arranged at a position lower than the cup mouth of the fat cup (25).
2. The automatic grease drop point tester according to claim 1, 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).
3. The automatic grease drop point tester according to claim 2, 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).
4. The automatic grease drip point tester according to claim 3, 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 bracket (211) are enclosed to form a heat-insulating cavity, and a heat-insulating cotton layer (216) is filled in the heat-insulating cavity;
the rear plate (215) is detachably connected to the left side plate (213) and the right side plate (214).
5. The automatic grease dropping point tester according to claim 4, 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.
6. The automatic grease drip point tester according to claim 5, wherein the metal bath housing (21) further comprises an insulation board (218) and an upper cover (217);
the heat preservation 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).
7. The automatic grease drop point tester according to claim 6, wherein the controller comprises a control box (7) disposed on the support base plate (1) and a control assembly disposed within the control box (7);
the top of the control box (7) is provided with a touch display screen (8); the touch display screen (8) is electrically connected with the controller and is used for displaying the temperature of the temperature sensor (13) and the temperature of the glass sensor (24).
8. The automatic grease drop point tester as claimed in claim 7, wherein the control box (7) is provided with a USB interface (9) for data export.
9. An automatic grease dropping point tester according to claim 8, characterized in that a plurality of rubber feet (10) are provided on the support base plate (1).
10. The automatic grease dropping point tester according to claim 9, wherein the control box (7) has heat dissipation holes (12) formed in its outer side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202123406958.5U CN217542952U (en) | 2021-12-30 | 2021-12-30 | Automatic tester for dropping point of lubricating grease |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123406958.5U CN217542952U (en) | 2021-12-30 | 2021-12-30 | Automatic tester for dropping point of lubricating grease |
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| CN217542952U true CN217542952U (en) | 2022-10-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114460126A (en) * | 2021-12-30 | 2022-05-10 | 辽宁省计量科学研究院 | Automatic tester for dropping point of lubricating grease, test tube assembly and testing method thereof |
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2021
- 2021-12-30 CN CN202123406958.5U patent/CN217542952U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114460126A (en) * | 2021-12-30 | 2022-05-10 | 辽宁省计量科学研究院 | Automatic tester for dropping point of lubricating grease, test tube assembly and testing method thereof |
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