Thermostatic bath for viscometer

Abstract

The thermostatic bath comprises a support table and a thermostatic barrel, the thermostatic barrel comprises an outer sleeve and an inner sleeve, the outer sleeve is provided with an external thread sleeve, the inner sleeve is provided with an internal thread sleeve, a heating cavity is arranged between the inner sleeve and the outer sleeve, and the inner sleeve is provided with a silicone rubber thermostatic heating belt in the heating cavity. A plurality of clamping gears, a clamping shaft and a clamping block are rotationally arranged on the supporting table, a driving motor is arranged in the supporting table, a driving rod is arranged on a motor shaft of the driving motor, a driving gear is arranged on the driving rod, a moving device is arranged on the supporting table, and an inner threaded sleeve on an inner sleeve and an outer threaded sleeve on an outer sleeve are connected to form the constant-temperature barrel. A silicon rubber constant-temperature heating belt is connected with a power source to conduct constant-temperature heating on a measuring cup in the constant-temperature barrel, so that viscosity detection is conveniently conducted on fluid in the measuring cup, a driving motor drives a driving gear to rotate, then a clamping gear, a clamping rod and a clamping block are driven to rotate, and the constant-temperature barrel is clamped and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of viscometers, and more specifically, it relates to a constant temperature bath for a viscometer. Background Technique

[0002] A viscometer is an instrument used to measure the viscosity of a fluid. Viscosity is the degree to which a fluid resists flow and is a measure of the internal friction of the fluid. It is usually used to evaluate the fluidity and deformation ability of the fluid. A constant temperature bath is a device used to keep the temperature of a fluid constant to ensure the accuracy of viscosity measurement results, because the viscosity value changes with temperature, especially when measuring non-Newtonian fluids, the change in temperature has a greater impact on the viscosity value, and the constant temperature bath can provide a stable temperature environment for the viscometer, making the measurement results more reliable.

[0003] In the verification of existing rotational viscometers, standard viscosity oil is often used as a sample. Usually, the temperature of the viscosity oil is controlled by a constant room temperature, and its viscosity is measured by the instrument. However, the room temperature method is greatly affected by the environment, and it is difficult to keep the environmental temperature constant at a precise value. Also, since the viscosity value of the viscosity oil often changes with temperature, there are often certain errors when using the room temperature method for verification. At the same time, the constant temperature barrel often needs to be adjusted according to the needs of the test position, but the support platform of the existing constant temperature barrel is difficult to adjust the position, and it is difficult to clamp and fix the constant temperature barrel. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the problems existing in the prior art, the utility model provides a constant temperature bath for a viscometer to solve the technical problem that it is difficult to keep the viscosity oil container at a constant temperature mentioned in the background technique.

[0006] (2) Technical Solution

[0007] To achieve the above object, the utility model provides the following technical solution: A constant temperature bath for a viscometer, including a support platform and a constant temperature barrel. The constant temperature barrel includes an outer sleeve and an inner sleeve. The outer sleeve is provided with an external thread sleeve, and the inner sleeve is provided with an internal thread sleeve that cooperates with the external thread sleeve. A heating cavity is provided between the inner sleeve and the outer sleeve. The inner sleeve is provided with a silicone rubber constant temperature heating belt in the heating cavity. The support platform is rotatably provided with a plurality of clamping shafts. One end of each clamping shaft is provided with a clamping block, and the other end is provided with a clamping gear. A driving motor is provided inside the support platform. A driving rod is provided on the motor shaft of the driving motor. A driving gear that cooperates with the clamping gear is provided on the driving rod. A moving device is provided on the support platform.

[0008] The utility model is further provided that a heat insulation layer is provided on the outer side of the outer sleeve to prevent heat dissipation.

[0009] The utility model is further configured such that a rubber strip is provided inside the inner sleeve, facilitating the fixation of the measuring cup.

[0010] The utility model is further configured such that a negative pressure sleeve is provided on the top of the support platform, and a piston rod is slidably provided inside the negative pressure sleeve. By moving the piston rod inside the negative pressure sleeve, a negative pressure is formed between the negative pressure sleeve and the constant temperature barrel, further improving the stability of the negative pressure barrel.

[0011] The utility model is further configured such that a driving screw is provided inside the driving rod, and a driving sleeve cooperating with the driving screw is provided on the piston rod, facilitating the movement direction of the piston rod.

[0012] The utility model is further configured such that a limiting groove is provided on the piston rod, and a limiting block is provided on the negative pressure sleeve, restricting the movement direction of the piston rod.

[0013] The utility model is further configured such that the moving device includes a moving sleeve, a moving rod is provided inside the moving sleeve, a moving wheel is provided at one end of the moving rod, and a support leg is provided at the other end of the moving rod. By providing the moving wheel and the support leg on the moving rod, it is convenient to move and support the support platform and the constant temperature barrel.

[0014] The utility model is further configured such that a limiting hole is provided on the moving rod, and a limiting bolt is provided on the moving sleeve, facilitating the fixation of the position of the moving rod.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a constant temperature bath for a viscometer, having the following beneficial effects:

[0017] 1. The inner threaded sleeve on the inner sleeve and the outer threaded sleeve on the outer sleeve are connected to form a constant temperature barrel. The silicone rubber constant temperature heating belt is connected to the power supply to perform constant temperature heating on the measuring cup inside the constant temperature barrel, facilitating the viscosity detection of the fluid in the measuring cup.

[0018] 2. The driving motor drives the driving gear to rotate, and then drives the clamping gear, the clamping rod and the clamping block to rotate, clamping and fixing the constant temperature barrel. At the same time, by moving the piston rod inside the negative pressure sleeve, a negative pressure state is formed between the negative pressure sleeve and the constant temperature barrel, further improving the stability of the constant temperature barrel on the support platform.

[0019] 3. By providing the support leg and the moving wheel on the moving rod, the support platform is convenient for stable support and movement, improving the practicability of the constant temperature barrel. Through the cooperation of the limiting hole and the limiting bolt, it is convenient to flexibly switch the support leg and the moving wheel. Description of the drawings

[0020] Figure 1 Schematic diagram of the cooperation structure of the support platform and the constant temperature barrel in the present utility model;

[0021] Figure 2 Schematic diagram of the sectional structure of the constant temperature barrel in the present utility model;

[0022] Figure 3 Schematic diagram of the sectional structure of the support platform in the present utility model;

[0023] Figure 4 Schematic diagram of the cooperation structure of the clamping shaft, clamping block, clamping gear, driving rod and driving gear in the present utility model;

[0024] Figure 5 Schematic diagram of the overall structure of the moving device in the present utility model.

[0025] In the figure: 1. Support platform; 2. Constant temperature barrel; 3. Outer sleeve; 4. Inner sleeve; 5. External thread sleeve; 6. Internal thread sleeve; 7. Heating cavity; 8. Silicone rubber constant temperature heating belt; 9. Clamping shaft; 10. Clamping block; 11. Clamping gear; 12. Driving motor; 13. Driving rod; 14. Driving gear; 15. Heat preservation layer; 16. Rubber strip; 17. Negative pressure sleeve; 18. Piston rod; 19. Driving screw; 20. Driving sleeve; 21. Limit groove; 22. Limit block; 23. Moving sleeve; 24. Moving rod; 25. Moving wheel; 26. Support leg; 27. Limit hole; 28. Limit bolt. Detailed implementation manners

[0026] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0028] In the present utility model, without contrary description, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually left and right as shown in the drawings; "inner, outer" refer to the inner and outer of the contours of the respective components, but the above orientation terms are not used to limit the present utility model.

[0029] Please refer to Figures 1-5, A constant temperature bath for a viscometer, comprising a support table 1 and a constant temperature barrel 2. The constant temperature barrel 2 includes an outer sleeve 3 and an inner sleeve 4. An external thread sleeve 5 is provided on the outer sleeve 3, and an internal thread sleeve 6 that cooperates with the external thread sleeve 5 is provided on the inner sleeve 4. A heating cavity 7 is provided between the inner sleeve 4 and the outer sleeve 3. A silicone rubber constant temperature heating belt 8 is provided in the heating cavity 7 of the inner sleeve 4. A plurality of clamping shafts 9 are rotatably provided on the support table 1. A clamping block 10 is provided at one end of each clamping shaft 9, and a clamping gear 11 is provided at the other end. A driving motor 12 is provided inside the support table 1. A driving rod 13 is provided on the motor shaft of the driving motor 12. A driving gear 14 that cooperates with the clamping gear 11 is provided on the driving rod 13. A moving device is provided on the support table 1. A heat insulation layer 15 is provided on the outer side of the outer sleeve 3, and a rubber strip 16 is provided inside the inner sleeve 4.

[0030] In this embodiment, when installing the constant temperature barrel 2, the internal thread sleeve 6 on the inner sleeve 4 and the external thread sleeve 5 on the outer sleeve 3 are used for threaded connection. The measuring cup is placed inside the constant temperature barrel 2. Through the rubber strip 16, the stability of the installation of the measuring cup is improved. The silicone rubber constant temperature heating belt 8 is connected to the power supply to perform constant temperature heating on the measuring cup inside the constant temperature barrel 2, so that the fluid in the measuring cup is convenient for viscosity detection. By providing the heat insulation layer 15, heat dissipation is prevented.

[0031] Please refer to Figures 3-5 , As an implementation manner of the support table 1: A negative pressure sleeve 17 is provided at the top of the support table 1. A piston rod 18 is slidably provided inside the negative pressure sleeve 17. A driving screw 19 is provided inside the driving rod 13. A driving sleeve 20 that cooperates with the driving screw 19 is provided on the piston rod 18. A limiting groove 21 is provided on the piston rod 18, and a limiting block 22 is provided on the negative pressure sleeve 17. The moving device includes a moving sleeve 23. A moving rod 24 is provided inside the moving sleeve 23. A moving wheel 25 is provided at one end of the moving rod 24, and a support leg 26 is provided at the other end. A limiting hole 27 is provided on the moving rod 24, and a limiting bolt 28 is provided on the moving sleeve 23.

[0032] More specifically, when placing the constant temperature barrel 2 on the support platform 1, start the driving motor 12. The motor shaft of the driving motor 12 drives the driving rod 13 and the driving gear 14 to rotate. The driving gear 14 drives the clamping gear 11 to rotate, and the clamping gear 11 drives the clamping shaft 9 and the clamping block 10 to rotate to clamp the constant temperature barrel 2. At the same time, when the driving rod 13 rotates, the driving rod 13 drives the driving screw 19 to rotate. The driving screw 19 rotates relative to the driving sleeve 20. Under the limiting action of the limiting block 22, the piston rod 18 moves downward in the vertical direction, so that a negative pressure state is formed between the piston rod 18 and the constant temperature barrel 2, and further fixes the constant temperature barrel 2 on the support platform 1. When performing viscosity detection, rotate the support platform 1 through the support leg 26. When moving the support platform 1 and the constant temperature barrel 2, rotate the direction of the moving rod 24 to make the moving wheel 25 face vertically downward, and fix the position of the moving rod 24 through the cooperation of the limiting hole 27 and the limiting bolt 28, so as to facilitate the movement and support of the support platform 1 and the constant temperature barrel 2.

[0033] In summary, when the overall equipment is in use or operation: when installing the constant temperature barrel 2, it is connected by threading the internal thread sleeve 6 on the inner sleeve 4 and the external thread sleeve 5 on the outer sleeve 3. Place the measuring cup in the constant temperature barrel 2. Through the rubber strip 16, the stability of the measuring cup installation is improved. Connect the power supply through the silicone rubber constant temperature heating belt 8 to heat the measuring cup in the constant temperature barrel 2 to a constant temperature, so that the fluid in the measuring cup is convenient for viscosity detection. By setting the heat insulation layer 15, heat dissipation is prevented.

[0034] When placing the constant temperature barrel 2 on the support platform 1, start the driving motor 12. The motor shaft of the driving motor 12 drives the driving rod 13 and the driving gear 14 to rotate. The driving gear 14 drives the clamping gear 11 to rotate, and the clamping gear 11 drives the clamping shaft 9 and the clamping block 10 to rotate to clamp the constant temperature barrel 2. At the same time, when the driving rod 13 rotates, the driving rod 13 drives the driving screw 19 to rotate. The driving screw 19 rotates relative to the driving sleeve 20. Under the limiting action of the limiting block 22, the piston rod 18 moves downward in the vertical direction, so that a negative pressure state is formed between the piston rod 18 and the constant temperature barrel 2, and further fixes the constant temperature barrel 2 on the support platform 1. When performing viscosity detection, rotate the support platform 1 through the support leg 26. When moving the support platform 1 and the constant temperature barrel 2, rotate the direction of the moving rod 24 to make the moving wheel 25 face vertically downward, and fix the position of the moving rod 24 through the cooperation of the limiting hole 27 and the limiting bolt 28, so as to facilitate the movement and support of the support platform 1 and the constant temperature barrel 2.

[0035] Among all the solutions mentioned above, for those involving the connection between two components, welding, the connection with bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. Whenever fixed connection is involved above, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A constant temperature bath for a viscometer, comprising a support platform (1) and a constant temperature barrel (2), characterized in that: The constant temperature barrel (2) comprises an outer sleeve (3) and an inner sleeve (4), the outer sleeve (3) being provided with an externally threaded sleeve (5), the inner sleeve (4) being provided with an internally threaded sleeve (6) cooperating with the externally threaded sleeve (5), a heating chamber (7) being provided between the inner sleeve (4) and the outer sleeve (3), the inner sleeve (4) being provided with a silicone rubber constant temperature heating belt (8) in the heating chamber (7), a plurality of clamping shafts (9) being rotatably provided on the support platform (1), one end of each clamping shaft (9) being provided with a clamping block (10) and the other end being provided with a clamping gear (11), a driving motor (12) being provided inside the support platform (1), a driving rod (13) being provided on the motor shaft of the driving motor (12), a driving gear (14) cooperating with the clamping gear (11) being provided on the driving rod (13), and a moving device being provided on the support platform (1).

2. A constant temperature bath for a viscometer according to claim 1, characterized in that: A heat-insulating layer (15) is provided on the outside of the outer sleeve (3).

3. A constant temperature bath for a viscometer according to claim 1, characterized in that: A rubber strip (16) is provided inside the inner sleeve (4).

4. A constant temperature bath for a viscometer according to claim 1, characterized in that: A negative pressure sleeve (17) is provided on the top of the support platform (1), and a piston rod (18) is slidably provided inside the negative pressure sleeve (17).

5. A constant temperature bath for a viscometer according to claim 4, characterized in that: A driving screw rod (19) is arranged inside the driving rod (13), and a driving sleeve (20) matched with the driving screw rod (19) is arranged on the piston rod (18).

6. A constant temperature bath for a viscometer according to claim 5, characterized in that: The piston rod (18) is provided with a limiting groove (21), and the negative pressure sleeve (17) is provided with a limiting block (22).

7. A constant temperature bath for a viscometer according to claim 1, characterized in that: The moving device comprises a moving sleeve (23), a moving rod (24) is arranged inside the moving sleeve (23), a moving wheel (25) is arranged at one end of the moving rod (24), and a supporting leg (26) is arranged at the other end of the moving rod (24).

8. A constant temperature bath for a viscometer according to claim 7, characterized in that: The moving rod (24) is provided with a limiting hole (27), and the moving sleeve (23) is provided with a limiting bolt (28).

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