Stirrer for measuring kinematic viscosity

Abstract

The utility model discloses a stirrer for measuring kinematic viscosity, and belongs to the field of viscosity measurement. The stirrer for measuring the kinematic viscosity comprises an outer frame, a first connecting ring with a first heating cavity is longitudinally arranged in the middle of the outer frame, and four stirring blades with second heating cavities are uniformly distributed around the first connecting ring; and the upper ends of the four stirring blades are connected through an extension sheet with a third heating cavity. According to the viscosity measuring device for the lubricating oil, the problem that an existing viscosity measuring device for the lubricating oil is low in heating efficiency is solved, the interior of the stirring piece is heated in advance through the heating rod, the stirring piece used for stirring is heated through heating, heating can be conducted while internal media are stirred, the periphery of the media can be heated through the heating block, and the heating efficiency is improved. And the stirring effect during stirring can be improved by simultaneously heating the medium inside and outside.

Description

Technical Field

[0001] This utility model relates to the field of viscosity measurement, specifically a stirrer for measuring kinematic viscosity. Background Technology

[0002] A stirrer for kinematic viscosity measurement is an experimental device used to measure the kinematic viscosity of liquids. Stirring ensures uniform sample temperature and eliminates air bubbles, thereby improving test accuracy. The stirrer operates under constant temperature conditions to avoid the influence of temperature fluctuations on viscosity results, while accelerating the sample to reach the homogeneous state required for testing, ensuring reliable data. This device is a key auxiliary tool for kinematic viscometers.

[0003] Chinese patent CN220271090U discloses a viscosity measuring device for lubricating oil, including a stirring structure and a clamping structure. The device body is equipped with a recovery tank, and the test barrel is located on the device body. The heat insulation shell is located on the device body and covers the outer wall of the test barrel. The test barrel, heat insulation shell and stirring structure work together to quickly and uniformly adjust the temperature of the lubricating oil to be tested inside. At the same time, the stirring structure can scrape the inner wall of the test barrel when cleaning the lubricating oil, so that the test barrel is cleaned more thoroughly and convenient for continuous testing of multiple sets of lubricating oil.

[0004] When the aforementioned patented lubricating oil viscosity measuring device is used for testing and heating and agitation, the heat can only circulate around the medium to be tested stored inside the device, and the medium to be tested can only be heated from the surrounding area, resulting in slow heating efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a stirrer for measuring kinematic viscosity. The stirrer preheats the inside of the stirring blade by means of a heating rod, which raises the temperature of the stirring blade used for stirring. Heating can be carried out while stirring the internal medium, and the heating block can heat the surrounding medium. Simultaneous heating of the inside and outside of the medium can improve the stirring effect during stirring, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stirrer for measuring kinematic viscosity, comprising an outer frame, a first connecting ring having a first heating chamber being longitudinally arranged at the middle position of the outer frame, four stirring blades having second heating chambers being evenly distributed around the first connecting ring, the upper ends of the four stirring blades being connected by an extension blade having a third heating chamber, a heating rod being longitudinally arranged inside the first heating chamber, and a separating ring being arranged around the stirring blades and the outer frame.

[0007] Preferably, the extension plate, the stirring plate, and the first connecting ring are an integral structure, and the first heating chamber, the second heating chamber, and the third heating chamber are interconnected.

[0008] Preferably, a second transmission tube is provided on one side of the upper center position of the outer frame, and the lower end of the second transmission tube overlaps with the upper region of the extension piece.

[0009] Preferably, a protective cover is fixed to the upper end of the outer frame by bolts.

[0010] Preferably, a second connecting ring is arranged around the upper end of the first connecting ring, and toothed grooves are evenly distributed around the second connecting ring, and the toothed grooves, the second connecting ring and the first connecting ring are welded and fixed in sequence.

[0011] Preferably, a cylindrical gear with a first bevel gear at its lower end is meshed on one side of the tooth groove, and a second bevel gear is meshed on one side of the first bevel gear.

[0012] Preferably, four rollers are evenly distributed around the lower end of the second connecting ring.

[0013] Preferably, the stirring plate, the extension plate, and the first connecting ring are all made of copper.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] When the stirring blade rotates and agitates the detection medium stored inside the outer frame, the liquid stored in the area between the separating ring and the outer frame can be heated by the heating block. The heating rod can heat the liquid inside the first heating chamber, the second heating chamber, and the third heating chamber. The first heating chamber, the second heating chamber, and the third heating chamber are located inside the stirring blade, the extension blade, and the first connecting ring used for agitation. The agitated material can be heated while the medium is being agitated, so that the material can be heated and agitated simultaneously from the inside and outside, achieving efficient agitation and efficient heating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the outer frame of this utility model;

[0018] Figure 3 This is a cross-sectional view of the internal structure of the first heating chamber of this utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of a portion of region A in the middle;

[0020] Figure 5 This is a cross-sectional view of the internal structure of the third heating chamber of this utility model;

[0021] Figure 6 For the present utility model Figure 5 Enlarged view of a portion of region B in the middle.

[0022] In the diagram: 1. Outer frame; 2. Discharge pipe; 3. First transmission pipe; 4. Second transmission pipe; 5. Separating ring; 6. Heating block; 7. Stirring blade; 8. Extension blade; 9. First connecting ring; 10. First heating chamber; 11. Second heating chamber; 12. Third heating chamber; 13. Heating rod; 14. Cylindrical gear; 15. Gear groove; 16. Second connecting ring; 17. Roller; 18. First bevel gear; 19. Second bevel gear. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments.

[0024] like Figure 1 As shown, a stirrer for measuring kinematic viscosity in this embodiment includes an outer frame 1. A first connecting ring 9 is longitudinally arranged in the middle of the outer frame 1. Four stirring blades 7 are evenly distributed around the first connecting ring 9. The upper ends of the four stirring blades 7 are connected by extension plates 8. The extension plates 8, stirring blades 7 and the first connecting ring 9 are an integral structure. After being driven, the extension plates 8, stirring blades 7 and the first connecting ring 9 can be rotated simultaneously to stir the medium to be tested.

[0025] The stirring plate 7 has a second heating chamber 11 inside, such as... Figure 5 and Figure 6 As shown, the extension plate 8 has a third heating chamber 12 inside, the first connecting ring 9 has a first heating chamber 10 inside, and the first heating chamber 10, the second heating chamber 11 and the third heating chamber 12 are interconnected. A heating rod 13 is arranged longitudinally inside the first heating chamber 10. When stirring, the first heating chamber 10, the second heating chamber 11 and the third heating chamber 12 are pre-filled with pure water. The heating rod 13 can heat the pure water in the areas inside the first heating chamber 10, the second heating chamber 11 and the third heating chamber 12, and can heat the medium to be tested in contact with it, so as to achieve direct heating of the stirring position.

[0026] The stirring plate 7, the extension plate 8, and the first connecting ring 9 are all made of copper. Copper can improve the heat conduction effect of the heating rod 13 after heating, and increase the heat conduction speed of the medium to be tested.

[0027] In order to quickly heat the medium inside the equipment, a second transmission pipe 4 is provided on one side of the upper center of the outer frame 1, and the lower end of the second transmission pipe 4 overlaps with the upper area of ​​the extension plate 8. After the stirred liquid medium is sent into the outer frame 1 through the second transmission pipe 4, the liquid medium will fall directly onto the upper end of the stirring plate 7, which can directly raise the temperature of the liquid medium, reduce the subsequent heating speed, and improve the heating efficiency.

[0028] In order to heat the surrounding area of ​​the agitated liquid medium, such as... Figure 2 As shown, a partition ring 5 is arranged around the stirring plate 7 and the outer frame 1. The partition ring 5 can separate the area between the stirring plate 7 and the outer frame 1. The space between the outer wall of the partition ring 5 and the inner wall of the extension plate 8 is filled with purified water. The upper and lower ends of the partition ring 5 and the extension plate 8 are respectively provided with first transmission pipes 3. One of the first transmission pipes 3 can facilitate the addition of purified water, while the other first transmission pipe 3 can facilitate the discharge of purified water.

[0029] In addition, a protective cover is provided at the top of the outer frame 1, and the protective cover is fixedly connected to the outer frame 1 by bolts. Opening the protective cover can expose the first connecting ring 9 inside and the first heating chamber 10 inside the first connecting ring 9, which makes it easy to fill the first heating chamber 10 with pure water.

[0030] In order to transmit the first connecting ring 9, a second connecting ring 16 is arranged around the upper end of the first connecting ring 9. The second connecting ring 16 is surrounded by evenly distributed toothed grooves 15. The toothed grooves 15, the second connecting ring 16 and the first connecting ring 9 are welded and fixed in sequence. The protruding toothed grooves 15 facilitate the rotation of the second connecting ring 16 and the first connecting ring 9.

[0031] A cylindrical gear 14 is provided on one side of the outer tooth groove 15, and the outer side of the cylindrical gear 14 meshes with the outer side of the tooth groove 15, such as... Figure 4 As shown, a first bevel gear 18 is provided at the lower end of the cylindrical gear 14, and the first bevel gear 18 is welded and fixed to the cylindrical gear 14. A second bevel gear 19 is provided on one side of the outer side of the first bevel gear 18, and the outer side of the second bevel gear 19 is meshed with the outer side of the first bevel gear 18. After the motor outputs to the second bevel gear 19, the second bevel gear 19 can drive the cylindrical gear 14 to rotate through the first bevel gear 18, which can facilitate the rotation of the first connecting ring 9, the extension plate 8 and the stirring plate 7 at the lower end.

[0032] In addition, in order to suspend the first connecting ring 9, the extension plate 8 and the stirring plate 7 in the middle of the inner side of the outer frame 1, so as to facilitate the rotation of the first connecting ring 9, the extension plate 8 and the stirring plate 7, four rollers 17 are evenly distributed around the lower end of the second connecting ring 16, and the fixed position of the rollers 17 is fixedly connected to the inner wall of the outer frame 1 by bolts. The rotation position of the rollers 17 is close to the lower end of the second connecting ring 16. When the second bevel gear 19 rotates and transmits, it can be supported and transmitted by the rotated rollers 17.

[0033] In order to discharge the agitated downstream medium, such as Figure 3As shown, a discharge pipe 2 is provided at the middle position of the lower end of the outer frame 1. When the discharge pipe 2 is opened, the internally heated medium can be discharged.

[0034] Four heating blocks 6 are evenly distributed around the partition ring 5 and the outer frame 1. The pure water placed between the partition ring 5 and the outer frame 1 can be heated by heating the heating blocks 6.

[0035] Working principle: When using the device and agitating the medium to be tested, the internal structure of the device is preheated. A portion of the purified water is sent between the separating ring 5 and the outer frame 1 through the first transmission pipe 3 at the upper end. The purified water between the separating ring 5 and the outer frame 1 is heated by the heating block 6. Another portion of the purified water is opened at the upper end outside the outer frame 1 and introduced into the stirring plate 7, the extension plate 8 and the first connecting ring 9. The purified water in the first heating chamber 10, the second heating chamber 11 and the third heating chamber 12 is heated by the heating rod 13 suspended inside the first connecting ring 9. The motor corresponding to the second bevel gear 19 is started. The rotation of the second bevel gear 19 drives the rotation of the cylindrical gear 14 through the first bevel gear 18. The cylindrical gear 14 drives the rotation of the second connecting ring 16 through the tooth groove 15. The second connecting ring 16 directly drives the rotation of the extension plate 8 and the stirring plate 7 through the first connecting ring 9. At the same time, the liquid medium wrapped by the stirring plate 7 is agitated and heated.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A stirrer for kinematic viscosity measurement comprising an outer frame (1), characterized in that, The first connecting ring (9) with the first heating cavity (10) is longitudinally arranged at the middle position of the outer frame (1), four stirring blades (7) with the second heating cavity (11) are uniformly distributed around the periphery of the first connecting ring (9), the upper ends of the four stirring blades (7) are connected through the extension blade (8) with the third heating cavity (12), the inside of the first heating cavity (10) is longitudinally arranged with the heating rod (13), and the separating ring (5) is arranged around between the periphery of the stirring blade (7) and the outer frame (1).

2. The stirrer for kinematic viscosity measurement according to claim 1, wherein The extension blade (8), the stirring blade (7) and the first connecting ring (9) are an integral structure, and the first heating cavity (10), the second heating cavity (11) and the third heating cavity (12) are communicated with each other.

3. The agitator for kinematic viscosity measurement according to claim 2, wherein The second transmission pipe (4) is arranged on one side of the upper end of the outer frame (1) at the center position, and the lower end of the second transmission pipe (4) overlaps the upper end area of the extension blade (8).

4. The agitator according to claim 1, wherein The upper end of the outer frame (1) is fixed with the protective cover through bolts.

5. The stirrer for determining kinematic viscosity according to claim 1, wherein The second connecting ring (16) is arranged around the upper end of the first connecting ring (9), the periphery of the second connecting ring (16) is uniformly distributed with the tooth groove (15), and the tooth groove (15), the second connecting ring (16) and the first connecting ring (9) are sequentially welded and fixed.

6. The stirrer for determining kinematic viscosity according to claim 5, wherein The tooth groove (15) is meshed and connected with the cylindrical gear (14) with the first bevel gear (18) at the lower end, and the first bevel gear (18) is meshed and connected with the second bevel gear (19) at one side.

7. The stirrer for determining kinematic viscosity according to claim 6, wherein Four rollers (17) are uniformly distributed around the lower end of the second connecting ring (16).

8. The stirrer for determining kinematic viscosity according to claim 1, wherein The materials of the stirring blade (7), the extension blade (8) and the first connecting ring (9) are all copper.

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