CN113075248B - Lubricating grease dropping point automatic measuring device - Google Patents
Lubricating grease dropping point automatic measuring device Download PDFInfo
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- CN113075248B CN113075248B CN202110312359.2A CN202110312359A CN113075248B CN 113075248 B CN113075248 B CN 113075248B CN 202110312359 A CN202110312359 A CN 202110312359A CN 113075248 B CN113075248 B CN 113075248B
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- heating bath
- lubricating grease
- heating
- pump
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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
Abstract
The invention provides an automatic measuring device for dropping points of lubricating grease, which comprises a heating bath pool; a heating component is arranged on the inner wall of the heating bath pool; a test tube is arranged in the heating bath, and the heating bath is provided with an opening for placing the test tube; a fat cup sleeve is arranged on the inner wall of the test tube; a fat cup is arranged inside the fat cup sleeve; a lubricating grease temperature sensor is arranged on the side wall of the grease cup sleeve; a dynamic detection sensor for the dropping point of the lubricating grease is arranged at the bottom of the grease cup sleeve; a controller with a control panel is arranged on the outer wall of the heating bath; the heating assembly, the lubricating grease temperature sensor and the lubricating grease dropping point dynamic detection sensor are respectively in signal connection with the controller.
Description
Technical Field
The invention relates to the field of dropping point measurement, in particular to an automatic measuring device for dropping points of lubricating grease.
Background
When the grease dropping point is measured according to the GBT 4929-1985 grease dropping point measuring method, the temperature of the thermometer in the grease cup and the two temperatures of the thermometer in the heating bath are recorded when the first grease is dropped, and the average value of the two temperatures is used as the dropping point of the sample.
The national standard test equipment has several defects: 1. judging a visual error existing when the sample is dropped by human eyes; 2. first thermometer reading: reading the reading number of the first thermometer after judging the dropping point and recording that a certain reading error exists, wherein the reading number of the thermometer is still constantly changed in the reading process, and the longer the reading time is, the larger the error is; 3. second thermometer reading: the time to first read the record will accumulate when reading the second thermometer reading at least 2 times the time of the first thermometer, and the accumulated error will become large.
Disclosure of Invention
The embodiment of the invention provides an automatic measuring device for a dropping point of lubricating grease, which aims to solve the problem that an error exists in a measuring result in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the embodiment of the invention provides an automatic measuring device for dropping points of lubricating grease, which comprises a heating bath pool; a heating component is arranged on the inner wall of the heating bath pool;
a test tube is arranged in the heating bath, and the heating bath is provided with an opening for placing the test tube; a fat cup sleeve is arranged on the inner wall of the test tube; a fat cup is arranged inside the fat cup sleeve; a lubricating grease temperature sensor is arranged on the side wall of the grease cup sleeve; a dynamic detection sensor for the dropping point of the lubricating grease is arranged at the bottom of the grease cup sleeve;
a controller with a control panel is arranged on the outer wall of the heating bath; the heating assembly, the lubricating grease temperature sensor and the lubricating grease dropping point dynamic detection sensor are respectively in signal connection with the controller;
preferably, the bottom of the heating bath is provided with an impeller for stirring the liquid in the heating bath.
Preferably, the cooling system further comprises a cooling pool, a first pump in signal connection with the controller and a cooling pool temperature sensor in signal connection with the controller; the first pump input end extends to the interior of the heating bath; the output end of the first pump extends to the interior of the cooling pool; the cooling pool temperature sensor is arranged on the inner wall of the cooling pool.
Preferably, a refrigeration compressor is arranged on the outer wall of the cooling pool; and a refrigerating unit connected with the refrigerating compressor is arranged at the bottom in the cooling pool.
Preferably, the device further comprises a liquid storage tank, a second pump in signal connection with the controller and a liquid storage tank temperature sensor in signal connection with the controller; the second pump extends into the liquid storage tank; the output end of the second pump extends to the interior of the heating bath; the liquid storage tank temperature sensor is arranged on the inner wall of the liquid storage tank.
Preferably, the device further comprises a third pump in signal connection with the controller; the input end of the third pump extends to the inside of the cooling pool; the output end of the third pump extends to the inside of the liquid storage tank.
Preferably, a printer is also included; the controller is in signal connection with the printer.
Further optimize this technical scheme, lubricating grease dropping point automatic checkout device the joint of test tube opening part is provided with the wooden plug.
Preferably, the heating assembly comprises a heater and a heating bath temperature sensor which are arranged on the inner wall of the heating bath; the heating pool temperature sensor and the heater are respectively in signal connection with the controller.
Preferably, a display is also included; the controller is in signal connection with the display.
The invention has the beneficial effects that:
1. the problem of when traditional dropping point survey personnel's vision is judged error and reading error to and the accumulative total error of twice reading to the influence of dropping point survey result is solved, guarantee the accuracy of testing result.
2. The moment of drop formation is accurately detected by using a dynamic drop detection sensor of the lubricating grease, and the visual error of drop judgment by human eyes is eliminated.
3. The temperature of the lubricating grease is accurately measured by using the lubricating grease temperature sensor, and the reading error of a thermometer and the accumulated error of the reading time are eliminated.
4. The liquid in the heating bath pool is stirred by the impeller, so that the fat cup can be heated uniformly, and the accuracy of the result is improved.
5. Through the effect of first pump, second pump, third pump, can make the liquid in the heating bath enter into the cooling bath fast, make the liquid in the liquid reserve tank enter into the heating bath, so the heating bath can cycle work, improves work efficiency.
6. The refrigeration unit is utilized to rapidly reduce the temperature of the high-temperature liquid in the cooling tank, and then the liquid is pumped into the liquid storage tank for standby, so that the working efficiency can be improved.
7. The test result can be automatically printed by a printer, and factors such as writing errors during recording are reduced.
8. The cork is used for plugging the pipe orifice of the test tube, so that the temperature in the test tube can be quickly raised.
Drawings
FIG. 1 shows a schematic structural view of the present invention;
reference numerals are as follows: 1. heating the bath; 2. a heater; 3. a heating bath temperature sensor; 4. a test tube; 5. a fat cup sleeve; 6. a fat cup; 7. a grease temperature sensor; 8. a dynamic detection sensor for dropping point of lubricating grease; 9. a display; 10. a controller; 11. an impeller; 12. a cooling pool; 13. a first pump; 14. a cooling pool temperature sensor; 15. a refrigeration compressor; 16. a refrigeration unit; 17. a liquid storage tank; 18. a second pump; 19. a reservoir temperature sensor; 20. a third pump; 21. a printer.
Detailed Description
To make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details are provided, such as specific configurations and components, merely to facilitate a thorough understanding of embodiments of the invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The invention provides an automatic measuring device for a dropping point of lubricating grease, aiming at the problem of error in a measuring result in the prior art.
As shown in fig. 1, an embodiment of the present invention provides an automatic measuring apparatus for dropping point of grease, including a heating bath 1; the inner wall of the heating bath 1 is provided with a heating component;
a test tube 4 is arranged inside the heating bath 1, and the heating bath 1 is provided with an opening for placing the test tube 4; the inner wall of the test tube 4 is provided with a fat cup sleeve 5; a fat cup 6 is arranged in the fat cup sleeve 5; a lubricating grease temperature sensor 7 is arranged on the side wall of the grease cup sleeve 5; a dynamic detection sensor 8 for the dropping point of lubricating grease is arranged at the bottom of the grease cup sleeve 5;
the outer wall of the heating bath 1 is provided with a controller 10 with a control panel; the heating assembly, the grease temperature sensor 7 and the grease dropping point dynamic detection sensor 8 are respectively in signal connection with the controller 10;
the bottom of the heating bath 1 is provided with an impeller 11 for stirring the liquid in the heating bath 1;
the system also comprises a cooling pool 12, a first pump 13 in signal connection with the controller 10 and a cooling pool temperature sensor 14 in signal connection with the controller 10; the input end of the first pump 13 extends to the interior of the heating bath 1; the output end of the first pump 13 extends to the inside of the cooling pool 12; the cooling pool temperature sensor 14 is arranged on the inner wall of the cooling pool 12;
a refrigeration compressor 15 is arranged on the outer wall of the cooling pool 12; a refrigerating unit 16 connected with the refrigerating compressor 15 is arranged at the bottom in the cooling pool 12;
the device also comprises a liquid storage tank 17, a second pump 18 in signal connection with the controller 10 and a liquid storage tank temperature sensor 19 in signal connection with the controller 10; the second pump 18 extends inside the reservoir 17; the output end of the second pump 18 extends to the inside of the heating bath 1; the liquid storage tank temperature sensor 19 is arranged on the inner wall of the liquid storage tank 17;
a third pump 20 in signal connection with the controller 10; the input end of the third pump 20 extends to the interior of the cooling pool 12; the output end of the third pump 20 extends to the interior of the liquid storage tank 17;
a printer 21; the controller 10 is in signal connection with the printer 21;
a wooden plug is clamped at the opening of the test tube 4;
the heating component comprises a heater 2 and a heating pool temperature sensor 3 which are arranged on the inner wall of the heating bath 1; the heating pool temperature sensor 3 and the heater 2 are respectively in signal connection with the controller 10;
also included is a display 9; the controller 10 is in signal connection with the display 9.
The working process is as follows:
the grease cup 6 is filled with grease, the grease cup 6 is filled with a grease cup sleeve 5, a grease temperature sensor 7 extends to the central position of the grease cup 6 and can not contact a grease film, a grease dropping point dynamic detection sensor 8 is arranged 2mm lower than the mouth of the grease cup 6, the grease cup 6 is filled into a test tube 4, and a cork is plugged.
Putting the assembled test tube 4 into the heating bath 1 through the opening of the heating bath 1, fixing the test tube 4 in the heating bath 1 through the friction force between the outer wall of the test tube 4 and the opening, controlling the second pump 18 to start through the controller 10, pumping the liquid in the liquid storage tank 17 by the second pump 18 into the heating bath 1, controlling the heater 2 to start by the controller 10, heating the liquid in the heating bath 1 by the heater 2 (heating the liquid at the heating rate of (4-7) DEG C before the expected dropping point 17 ℃ and at the heating rate of (1-1.5) DEG C after 17 ℃), simultaneously controlling the impeller 11 to rotate by the controller 10, stirring and heating the liquid in the bath 1 to ensure that the test tube 4 is uniformly heated, the lubricating grease in the grease cup 6 is heated, when the lubricating grease drops after being heated, the dynamic lubricating grease drop detection sensor 8 is used for capturing the dropping point of the lubricating grease, the dynamic lubricating grease drop monitoring sensor transmits a signal to the controller 10 at the same time, the temperature sensor 7 can measure the temperature of the lubricating grease when the dropping point occurs at the same time, the temperature is transmitted to the controller 10, the controller 10 transmits the signal to the display 9, and at the moment, when the dropping point occurs in the lubricating grease, the temperature of the temperature sensor 7 and the temperature and the average value of the temperature sensor 3 of the heating pool at the moment are displayed on the display 9 in a return mode, and the accuracy is achieved to 1 bit behind the decimal point.
After the test is completed, the controller 10 controls the first pump 13 to pump the liquid in the heating bath 1 into the cooling bath 12, the refrigeration compressor 15 and the refrigeration unit 16 start to work, the liquid temperature is cooled to be below the expected dropping point 17 ℃, then the refrigeration is stopped (the internal temperature of the cooling bath 12 is measured by the cooling bath temperature sensor 14), and the third pump 20 pumps the liquid in the cooling bath 12 into the liquid storage 17 for standby.
The above-mentioned link is accomplished automatically, can take off test tube 4 after surveying for the first time, clears away and carries out the second test at once after the remaining repacking appearance of fat cup 6, need not to wait for, and the last temperature of the inside liquid of liquid storage tank 17 is surveyed by liquid storage tank temperature sensor 19 simultaneously, waits that the inside liquid temperature of liquid storage tank 17 is qualified, launches above-mentioned link again.
The following are specifically mentioned: the liquid in the heating bath 1 can be water or other liquid which is not easy to volatilize and generate chemical reaction.
The controller 10 is a control board with a single chip microcomputer of which the model is STC12C5A60S2 as a core.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (7)
1. An automatic measuring device for dropping point of lubricating grease, characterized by comprising:
the heating bath pool comprises a heating bath pool (1), wherein a heating component is arranged on the inner wall of the heating bath pool (1);
a test tube (4) is arranged inside the heating bath (1), and the heating bath (1) is provided with an opening for placing the test tube (4);
the inner wall of the test tube (4) is provided with a fat cup sleeve (5); wherein a fat cup (6) is arranged in the fat cup sleeve (5); a lubricating grease temperature sensor (7) is arranged on the side wall of the grease cup sleeve (5); a dynamic detection sensor (8) for the dropping point of lubricating grease is arranged at the bottom of the grease cup sleeve (5);
a controller (10) with a control panel is arranged on the outer wall of the heating bath pool (1);
the heating assembly, the lubricating grease temperature sensor (7) and the lubricating grease dropping point dynamic detection sensor (8) are respectively in signal connection with the controller (10);
a cooling pool (12), a first pump (13) in signal connection with the controller (10) and a cooling pool temperature sensor (14) in signal connection with the controller (10);
the input end of the first pump (13) extends into the heating bath (1);
the output end of the first pump (13) extends to the interior of the cooling pool (12);
the cooling pool temperature sensor (14) is arranged on the inner wall of the cooling pool (12);
a liquid storage tank (17), a second pump (18) in signal connection with the controller (10) and a liquid storage tank temperature sensor (19) in signal connection with the controller (10);
the second pump (18) extends inside the reservoir (17);
the output end of the second pump (18) extends to the interior of the heating bath (1);
the liquid storage tank temperature sensor (19) is arranged on the inner wall of the liquid storage tank (17);
a third pump (20) in signal connection with the controller (10);
the input end of the third pump (20) extends to the inside of the cooling pool (12);
the output end of the third pump (20) extends to the interior of the liquid storage tank (17).
2. The automatic measuring device for the dropping point of the lubricating grease according to claim 1 is characterized in that the bottom of the heating bath (1) is provided with an impeller (11) for stirring the liquid in the heating bath (1).
3. The automatic measuring device for the dropping point of the lubricating grease according to the claim 1 is characterized in that a refrigeration compressor (15) is arranged on the outer wall of the cooling pool (12);
and a refrigerating unit (16) connected with the refrigerating compressor (15) is arranged at the bottom in the cooling pool (12).
4. The automatic grease dropping point measuring device according to claim 1, further comprising:
a printer (21); the controller (10) is in signal connection with the printer (21).
5. The automatic measuring device for the dropping point of the lubricating grease as claimed in claim 1, characterized in that a wooden plug (22) is clamped at the opening of the test tube (4).
6. The automatic grease dropping point measuring device according to claim 1, wherein the heating unit includes:
the heater (2) and the heating pool temperature sensor (3) are arranged on the inner wall of the heating bath pool (1);
the heating pool temperature sensor (3) and the heater (2) are respectively in signal connection with the controller (10).
7. The automatic grease dropping point measuring device according to claim 1, further comprising:
a display (9); the controller (10) is in signal connection with the display (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110312359.2A CN113075248B (en) | 2021-03-24 | 2021-03-24 | Lubricating grease dropping point automatic measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110312359.2A CN113075248B (en) | 2021-03-24 | 2021-03-24 | Lubricating grease dropping point automatic measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN113075248A CN113075248A (en) | 2021-07-06 |
| CN113075248B true CN113075248B (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110312359.2A Active CN113075248B (en) | 2021-03-24 | 2021-03-24 | Lubricating grease dropping point automatic measuring device |
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| CN (1) | CN113075248B (en) |
Families Citing this family (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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6776900B2 (en) * | 2000-07-28 | 2004-08-17 | Josam Company | Level measurement for grease separators |
| CN2824023Y (en) * | 2005-10-11 | 2006-10-04 | 中华人民共和国天津出入境检验检疫局 | Drippoint dynamic tester for lubricating grease |
| CN2872352Y (en) * | 2005-10-11 | 2007-02-21 | 河北工业大学 | Dynamic titrating inspecting sensor of lubricating grease |
| CN203224468U (en) * | 2013-04-18 | 2013-10-02 | 辽宁华科石油设备科技有限公司 | Automatic lubricating grease wide temperature range dropping point measuring equipment |
| CN106404823A (en) * | 2016-06-02 | 2017-02-15 | 宁夏宝塔石化科技实业发展有限公司 | Tester for dropping point of lubricating grease |
| CN206609814U (en) * | 2017-03-07 | 2017-11-03 | 上海景颐自动化设备有限公司 | A kind of micro fast automatic detecting grease dropping point test device |
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- 2021-03-24 CN CN202110312359.2A patent/CN113075248B/en active Active
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