CN-224216505-U - Surface microstructure rotary viscometer rotor for modifier test

Abstract

The utility model discloses a surface microstructure rotary viscometer rotor for modifier testing, comprises a connecting rod, a rotor body, a surface microstructure layer and an auxiliary stabilizing ring. The connecting rod is used for being connected with the main machine of the viscometer, the rotor body is of a cylindrical or conical structure, a surface microstructure layer is arranged on the outer surface of the rotor body and used for enhancing the coupling of a shearing interface with the modifier, and the auxiliary stabilizing ring is arranged at the middle part or the lower part of the rotor body and used for improving the gesture stability in the testing process. The structure is favorable for improving the accuracy and repeatability of the rheological test of the modifier, and is suitable for testing a material system with complex shearing behaviors.

Inventors

• WU CHENGHAI
• SU ZIBIN
• SU YONGQING

Assignees

• 厦门黑之光新材料有限公司

Dates

Publication Date

20260508

Application Date

20250529

Claims (9)

1. 1. A surface microstructure rotary viscometer rotor for modifier testing, comprising: The upper end of the connecting rod (1) is provided with a connector (2) which is used for being connected with an output shaft of a main machine of the viscometer; the rotor body (6) is connected to the lower end of the connecting rod (1), and is of a cylindrical or conical structure as a whole; The surface microstructure layer (3) is arranged on the outer surface of the rotor body (6) and used for enhancing the shear interface coupling between the rotor body (6) and the modifying agent; and the auxiliary stabilizing ring (4) is arranged at the middle part or the lower part of the rotor body (6) and is used for keeping the rotor stable in the testing process.
2. 2. A surface microstructure rotary viscometer rotor for modifier testing according to claim 1, wherein the surface microstructure layer (3) comprises a plurality of grooves uniformly spaced apart in an axial direction.
3. 3. A surface microstructure rotary viscometer rotor for modifier testing according to claim 2, wherein the distance between any two adjacent grooves is 1mm to 3mm.
4. 4. A surface microstructure rotary viscometer rotor for modifier testing according to claim 1, wherein the surface microstructure layer (3) comprises a plurality of hemispherical protrusions distributed in a circumferential direction.
5. 5. The rotor of claim 1, wherein the rotor body (6) is hollow, and the inner cavity of the rotor body is provided with a plurality of diversion holes (5) for fluid disturbance.
6. 6. The rotor of claim 5, wherein the outer surface of the rotor body (6) is configured as a stepped conical structure which gradually increases from top to bottom to enhance the stability of the shear flow field.
7. 7. The rotor of claim 6, wherein the outer surface of the rotor body (6) is tapered and the taper is 5 DEG to 15 deg.
8. 8. A surface microstructure rotary viscometer rotor for modifier testing according to claim 1, wherein: the connector (2) is of a plug-in type structure with a hexagonal groove and is used for rapid installation and disassembly.
9. 9. The rotor of claim 1, wherein the auxiliary stabilizing ring (4) is of a detachable structure and is connected with the rotor body (6) in a buckling or threaded manner.

Description

Surface microstructure rotary viscometer rotor for modifier test Technical Field The utility model relates to the technical field of stirring devices, in particular to a rotor of a surface microstructure rotary viscometer for testing a modifying agent. Background In the field of material performance testing, viscosity is one of the important parameters for measuring fluid flow characteristics. The rotary viscometer is used as a common measuring device, a core component, namely a rotor, is in direct contact with a fluid to be measured, and a shearing force is generated through rotation, so that a viscosity value is measured. However, the rotors of conventional rotary viscometers typically employ smooth surface designs, which are only suitable for viscosity testing of conventional liquids, and have significant drawbacks in testing accuracy and representativeness for modifier-type fluids containing particulates, fillers, or structurally modified components. Especially in the test scene of the modifier, the flow behavior of the modifier in the actual use process is complex because the modifier has a certain structural viscoelasticity or shear sensitivity. If the rotor surface is too smooth, slippage between the fluid and the rotor is easy to occur, so that shearing boundary conditions are false, and a real and effective speed gradient cannot be formed. This unrealistic shear state causes the viscosity reading to deviate from the rheological characteristics under practical use conditions, affecting an accurate assessment of the performance of the modifier. In view of this, the present inventors have specifically devised a rotor of a surface microstructure rotary viscometer for modifier testing, which results therefrom. Disclosure of utility model (One) solving the technical problems The application aims to provide a surface microstructure rotary viscometer rotor for testing a modifying agent, which at least solves the problem that the traditional rotary viscometer rotor is inaccurate in measurement due to too smooth surface when testing the modifying agent, and particularly cannot truly reflect the flowing state of the modifying agent in the using process, thereby influencing the reliability of a test result. (II) technical scheme In order to solve the technical problems, the utility model provides the following technical scheme: the application provides a surface microstructure rotary viscometer rotor for modifier testing, which comprises: The upper end of the connecting rod is provided with a connector which is used for being connected with an output shaft of the main machine of the viscometer; The rotor body is connected to the lower end of the connecting rod and is of a cylindrical or conical structure as a whole; The surface microstructure layer is arranged on the outer surface of the rotor body and used for enhancing the shear interface coupling between the rotor body and the modifying agent; And the auxiliary stabilizing ring is arranged at the middle part or the lower part of the rotor body and is used for keeping the posture of the rotor body stable in the testing process. In a further aspect, the surface microstructure layer includes a plurality of grooves that are uniformly spaced apart in an axial direction. In a further aspect, the spacing between any two adjacent grooves is 1mm to 3mm. In a further aspect, the surface microstructure layer includes a plurality of hemispherical protrusions distributed in a circumferential direction. In a further scheme, the rotor body is of a hollow structure, and the inner cavity of the rotor body is provided with a plurality of diversion holes for fluid disturbance. In a further scheme, the outer surface of the rotor body is provided with a stepped conical structure which is gradually increased from top to bottom so as to enhance the stability of the shear flow field. In a further aspect, the outer surface of the rotor body is tapered and the taper is 5 ° to 15 °. In a further scheme, the connector is of a plug-in type structure with a hexagonal groove and is used for quick installation and disassembly. In a further scheme, the auxiliary stabilizing ring is of a detachable structure and is connected with the rotor body in a buckling or threaded mode. (III) beneficial effects Compared with the prior art, the utility model has the following beneficial effects: Through set up the micro-structure layer of regular arrangement at the surface of rotary viscometer rotor to combine cavity water conservancy diversion structure and detachable stabilizer ring design, not only effectively strengthened the shearing interface coupling between rotor and the modifier, promoted the true analog ability and the test sensitivity of shearing field, and through adjustable toper structure and standardized installation interface, further improved assembly convenience and test stability, thereby realized the higher modifier rheological properties test of more accuracy, repeatability. The fo