High-concentricity rotor clamping device for high-temperature viscometer

Abstract

The utility model discloses a high-concentricity rotor clamping device for a high-temperature viscometer, relates to the technical field of viscometer rotor connection, and is used for solving the technical problems of poor stability and low accuracy of measured data in the viscosity measurement process of the existing viscometer. Wherein the viscometer is provided with a rotating part, the rotating end face of the rotating part is provided with an adapter, the adapter is provided with a connecting ring, and the rotor clamping device comprises a fixing rod, a rotor, a limiting rod and a clamping mechanism; wherein the fixing rod is arranged to be a hollow rod, and a first through hole is formed in the side face of the fixing rod; the rotor comprises a connecting rod and a rotor end part connected with the connecting rod; a second through hole is formed in the side surface of the connecting rod; the connecting rod extends into the fixing rod, and the limiting rod sequentially penetrates through the first through hole and the second through hole. The clamping mechanism is connected to the outer surface of the fixing rod in a sleeving mode, the clamping mechanism is connected with the connecting ring, and the rotor clamping device for the high-temperature viscometer is high in concentricity.

Description

TECHNICAL FIELD

[0001] The utility model relates to viscosity meter rotor connection technical field more specifically, relate to a rotor clamping device for high temperature viscometer with high concentricity. BACKGROUND

[0002] High temperature viscometer generally passes through capillary tube type viscometer method, rotary type viscometer method or vibration type viscometer method and other related technical methods to the viscosity of high temperature melt is determined. Among them, the most commonly used also the most mature test method is rotary type viscometer method, this method passes through the cylindrical rotor is immersed in the melt to be measured, measures the torque formed when its continuous rotation to determine the size of the viscosity. Because the resistance of the rotor immersed in the sample is proportional to the torque formed by viscous shear, so the torque is proportional to the viscosity. That is, the viscosity of the melt is determined by the torque of the rotor under high temperature, which requires that the clamping of the rotor be kept in high concentricity during the viscosity determination process to ensure the stability of the data measurement process and the accuracy of the data.

[0003] The existing viscometer in the process of using, through carving horizontal groove on corundum rod, and using metal clip to hold up corundum rod, thereby guaranteeing the connection of rotor and corundum rod. Because the center of gravity of this way is not on the corundum rod, and the corundum rod is movable in the metal sleeve, causing the corundum rod and vertical direction to exist a deflection angle, leading to poor stability in the process of viscosity measurement, and the accuracy of the measured data is low. UTILITY MODEL CONTENTS

[0004] The utility model discloses a rotor clamping device for high temperature viscometer with high concentricity, which solves the technical problem of poor stability in the process of viscosity measurement and low accuracy of measured data in the existing viscometer due to the center of gravity not being on the corundum rod and the corundum rod being movable in the metal sleeve. Therefore, the utility model is implemented by the following scheme.

[0005] A rotor clamping device for high temperature viscometer with high concentricity, the viscometer has a rotating part, the rotating end face of the rotating part is provided with an adapter, the adapter is provided with a connecting ring, and the rotor clamping device comprises:

[0006] A fixed rod is provided as a hollow rod, a first through hole is formed in the side surface of the fixed rod;

[0007] A rotor comprises a connecting rod and a rotor end connected thereto, the outer diameter of the connecting rod is less than or equal to the inner diameter of the fixed rod, and a second through hole is formed in the side surface of the connecting rod;

[0008] A limiting rod, the connecting rod extends into the interior of the fixed rod, and the limiting rod passes through the first through hole and the second through hole in sequence;

[0009] A clamping mechanism is sleeved on the outer surface of the fixed rod, and the end of the clamping mechanism away from the rotor is connected with the connecting ring.

[0010] Compared with the prior art, in the rotor clamping device with high concentricity for high-temperature viscometer, the fixed rod is provided as a hollow rod, and a first through hole is formed in the side surface, and the connecting rod of the rotor is provided with a second through hole, and after the connecting rod is inserted into the inside of the fixed rod, the rotor and the fixed rod can be fixedly connected by sequentially penetrating the first through hole and the second through hole with the limiting rod; further, the rotor clamping device is arranged near the melt or liquid to be measured, and the rotor end of the rotor is inserted into the melt or liquid, the viscometer is started, and the rotating part rotates, and since the clamping mechanism is sleeved on the outer surface of the fixed rod, and the end of the clamping mechanism away from the rotor is connected with the connecting ring, when the rotating part rotates, the adapter connected with the rotating part drives the clamping mechanism to rotate through the connecting ring, and the rotor (or the rotor end) rotates around the central axis of the fixed rod. In the above process, since the adapter, the fixed rod, the rotor and the clamping mechanism all rotate coaxially (i.e. have high concentricity) in the rotating state, and the rotor remains fixed relative to the fixed rod, the viscometer has high stability in the viscosity measurement process, and the measured viscosity data has small deviation from the actual value (high accuracy). Through the above technical scheme, the technical problems of poor stability in the viscosity measurement process and low accuracy of the measured data caused by the fact that the center of gravity of the existing viscometer is not on the corundum rod, and the corundum rod is movable in the metal sleeve, and an angle is formed between the corundum rod and the vertical direction are solved.

[0011] Further, in the rotor clamping device with high concentricity for high-temperature viscometer, the clamping mechanism comprises:

[0012] A clamping sleeve is sleeved on the outer surface of the fixed rod;

[0013] A first fastening cylinder has a cylinder bottom, the first fastening cylinder is sleeved on the surface of the clamping sleeve at the end away from the rotor, and the cylinder bottom is connected with the connecting ring;

[0014] A second fastening cylinder is sleeved on the surface of the clamping sleeve at the end close to the rotor through the fixed rod.

[0015] Further, in the rotor clamping device with high concentricity for high-temperature viscometer, a plurality of first grooves are arranged at the end of the clamping sleeve at equal intervals;

[0016] The end of the clamping sleeve away from the rotor is inserted into the first fastening cylinder and is threadedly connected with the first fastening cylinder;

[0017] The end of the clamping sleeve close to the rotor is inserted into the second fastening cylinder and is threadedly connected with the second fastening cylinder.

[0018] Further, the utility model discloses a rotor clamping device for high temperature viscometer with high concentricity, the second recess is arranged on the outer surface of the sleeve end portion with the first recess, and the sleeve end portion has a convex block due to the arrangement of the second recess.

[0019] The end of the first fastening cylinder away from the rotor is provided with a tapered structure matched with the chamfer.

[0020] The end of the second fastening cylinder close to the rotor is provided with a tapered structure matched with the chamfer.

[0021] Further, the utility model discloses a rotor clamping device for high temperature viscometer with high concentricity, a sleeve is arranged on the sleeve away from the first recess.

[0022] Further, the utility model discloses a rotor clamping device for high temperature viscometer with high concentricity, further include:

[0023] A hook is arranged between the clamping mechanism and the connecting ring.

[0024] Further, the utility model discloses a rotor clamping device for high temperature viscometer with high concentricity, a connecting part is arranged on the bottom of the first fastening cylinder.

[0025] One end of the hook is connected with the connecting part, and the other end is connected with the connecting ring.

[0026] Further, the utility model discloses a rotor clamping device for high temperature viscometer with high concentricity, 2-8 first recesses are arranged at the end of the sleeve at equal intervals.

[0027] Further, the utility model discloses a rotor clamping device for high temperature viscometer with high concentricity, the sleeve is a heat shrink tube.

[0028] Further, the utility model discloses a rotor clamping device for high temperature viscometer with high concentricity, the viscometer is provided with a display screen, a horizontal support and a vertical support, and the rotor clamping device further includes:

[0029] A first imaging device and a second imaging device;

[0030] The horizontal support is provided with the first imaging device, and the vertical support is provided with the second imaging device, and the first imaging device and the second imaging device are electrically connected with the display screen respectively.

[0031] The first imaging device is used for recording the concentricity of the rotor in the horizontal direction when rotating, transmitting a recording signal to the viscometer, and displaying on the display screen.

[0032] The second imaging device is used for recording the concentricity of the rotor in the vertical direction when rotating, transmitting a recording signal to the viscometer, and displaying on the display screen. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0034] Figure 1 FIG. 1 is a structural schematic view of a rotor clamping device according to the present application;

[0035] Figure 2 FIG. 2 is a structural schematic view of another rotor clamping device according to the present application;

[0036] Figure 3 FIG. 3 is a structural schematic view of a clamping mechanism in the rotor clamping device according to the present application;

[0037] Figure 4 FIG. 4 is a structural schematic view of another clamping mechanism in the rotor clamping device according to the present application;

[0038] Figure 5 FIG. 5 is a structural schematic view of a sleeve in the rotor clamping device according to the present application;

[0039] Figure 6 FIG. 6 is a connection schematic view of a hook in the rotor clamping device according to the present application;

[0040] Figure 7 FIG. 7 is a connection schematic view of a fixed rod and a rotor in the rotor clamping device according to the present application.

[0041] Reference Signs:

[0042] 1-rotating part; 2-adapter; 3-connection ring; 4-fixed rod; 5-rotor; 501-connection rod; 502-rotor end; 6-clamping mechanism; 601-sleeve; 6011-first groove; 6012-second groove; 6013-chamfer; 602-first fastening cylinder; 6021-connection part; 603-second fastening cylinder; 604-sleeve; 7-hook; 8-connection end; 9-limiting rod. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0044] It is to be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0045] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited. The meaning of "several" is one or more, unless otherwise specifically limited.

[0046] The existing viscometer in the process of use, by engraving horizontal slot on corundum rod, and using metal clamp to hold corundum rod, so as to ensure the connection of rotor and corundum rod. Since the center of gravity of this kind of way is not on the corundum rod, and the corundum rod is movable in the metal sleeve, an angle of deviation exists between the corundum rod and the vertical direction, which leads to poor stability in the process of viscosity measurement, and low accuracy of measured data.

[0047] Please refer to Figures 1 to 7 , in order to solve the above technical problems, the utility model provides a kind of rotor clamping device for high-temperature viscometer with high concentricity, and the viscometer has rotating part 1, the rotating end surface of the rotating part 1 is provided with adapter 2, adapter 2 is provided with connecting ring 3, rotor clamping device includes fixed rod 4, rotor 5, limit rod 9 and clamping mechanism 6;Wherein: fixed rod 4 is set as hollow rod, first through hole is opened in the side surface of the fixed rod 4;Rotor 5 includes connecting rod 501 and the rotor end portion 502 connected with it, the outer diameter of connecting rod 501 is less than or equal to the inner diameter of fixed rod 4, second through hole is opened in the side surface of connecting rod 501;Connecting rod 501 extends into the inside of fixed rod 4, limit rod 9 passes through first through hole and second through hole in turn;Clamping mechanism 6 is sleeved on the outer surface of fixed rod 4, the end, away from rotor 5 of clamping mechanism 6, is connected with connecting ring 3;Illustratively, viscometer can be connected with fixed frame through connecting end 8, to realize the fixation of viscometer.

[0048] Specific implementation process: the rotor clamping device is used for clamping the rotor, and connecting the rotor 5 with the adapter 2 of the viscometer (not directly connected, but indirectly connected through the remaining components), ensuring that the viscometer can stably and accurately measure the viscosity of the melt or liquid. Specifically, the rotor clamping device is moved to the side of the melt or liquid to be measured, and the rotor 5 of the device is extended into the melt or liquid by controlling the position (height and distance to the melt or liquid) of the rotor clamping device, setting the rotational speed of the viscometer, and starting the viscometer to rotate the rotating part 1 connected thereto. The rotating part 1 drives the clamping mechanism 6 to rotate, and then the rotor 5 (or the rotor end 502) rotates around the central axis of the fixed rod 4. In the process, the viscometer is a commercially available electronic viscometer and is connected to a power supply. The fixed rod 4 can be a corundum rod.

[0049] In the case of the above technical solution, the fixed rod 4 is provided as a hollow rod with a first through hole on the side, and the connecting rod 501 of the rotor 5 is provided with a second through hole. After the connecting rod 501 is inserted into the inside of the fixed rod 4, the rotor 5 and the fixed rod 4 can be fixedly connected by passing the limiting rod 9 through the first through hole and the second through hole in turn. Further, the rotor clamping device is arranged near the melt or liquid to be measured, and the rotor end 502 of the rotor 5 is extended into the melt or liquid. The viscometer is started, and the rotating part 1 rotates. Since the clamping mechanism 6 is sleeved on the outer surface of the fixed rod 4, and the end of the clamping mechanism 6 away from the rotor 5 is connected with the connecting ring 3, when the rotating part 1 rotates, the adapter 2 connected with the rotating part 1 drives the clamping mechanism 6 to rotate through the connecting ring 3, and then the rotor 5 (or the rotor end 502) rotates around the central axis of the fixed rod 4. In the above process, since the adapter 2, the fixed rod 4, the rotor 5 and the clamping mechanism 6 all rotate around the same axis (i.e. have high concentricity) in the rotating state, and the rotor 5 remains fixed relative to the fixed rod 4, the viscometer has high stability during viscosity measurement, and the measured viscosity data has small deviation from the actual value (high accuracy). Through the above technical solution, the technical problems of poor stability and low accuracy of the measured data in the viscosity measurement process caused by the fact that the center of gravity of the existing viscometer is not on the corundum rod, and the corundum rod is movable in the metal sleeve, resulting in a deviation angle between the corundum rod and the vertical direction, are solved.

[0050] As a possible implementation, the rotor clamping device for high-temperature viscometer with high concentricity comprises a clamping mechanism 6, the clamping mechanism 6 comprises a sleeve 601, a first fastening cylinder 602 and a second fastening cylinder 603; wherein the sleeve 601 is sleeved on the outer surface of the fixed rod 4, the first fastening cylinder 602 has a cylinder bottom, the first fastening cylinder 602 is sleeved on the surface of the sleeve 601 at the end away from the rotor 5, and the cylinder bottom is connected with the connecting ring 3, and the second fastening cylinder 603 is sleeved on the surface of the sleeve 601 at the end close to the rotor 5 through the fixed rod 4.

[0051] In the rotor clamping device for high-temperature viscometer with high concentricity, in order to facilitate the replacement of the fixed rod 4 (or the clamping mechanism 6), the above-mentioned clamping mechanism 6 can be separated from the fixed rod 4 by disassembling, and after the replacement of the fixed rod 4, the fixed rod 4 is sleeved again, so that in order to facilitate the replacement of the fixed rod 4 (or the clamping mechanism 6), the clamping mechanism 6 is arranged as a combined structure of the sleeve 601, the first fastening cylinder 602 and the second fastening cylinder 603. Specifically, during the sleeving of the clamping mechanism 6 and the fixed rod 4, the sleeve 601 is first sleeved at a position (relative to the fixed rod 4) of the fixed rod 4, then the second fastening cylinder 603 is sleeved on the surface of the sleeve 601 at the end close to the rotor 5 through the fixed rod 4, and then the first fastening cylinder 602 is sleeved on the surface of the sleeve 601 at the end away from the rotor 5, and the cylinder bottom is connected with the connecting ring 3. It should be noted that, as described above, the sleeve 601 and the fixed rod 4 are relatively fixed, and the relative fixation can be caused by the friction between the sleeve 601 and the fixed rod 4, but the sleeve 601 and the fixed rod 4 can be separated under the action of external force (manual force). Therefore, the rotor clamping device further comprises the first fastening cylinder 602 and the second fastening cylinder 603, and when the first fastening cylinder 602 and the second fastening cylinder 603 are sleeved at both ends (surfaces) of the sleeve 601 respectively, the sleeve 601 is deformed, thereby increasing the friction between the sleeve 601 and the fixed rod 4, so that the sleeve 601 and the fixed rod 4 cannot be separated under the action of manual force. Of course, the friction can also bear the weight of the entire corundum rod and the rotor 5, so that the clamping device can stably perform viscosity measurement.

[0052] As a possible implementation, the rotor clamping device for high-temperature viscometer with high concentricity comprises a clamping mechanism 6, the clamping mechanism 6 comprises a sleeve 601, a first fastening cylinder 602 and a second fastening cylinder 603; wherein the sleeve 601 is sleeved on the outer surface of the fixed rod 4, the first fastening cylinder 602 has a cylinder bottom, the first fastening cylinder 602 is sleeved on the surface of the sleeve 601 at the end away from the rotor 5, and the cylinder bottom is connected with the connecting ring 3, and the second fastening cylinder 603 is sleeved on the surface of the sleeve 601 at the end close to the rotor 5 through the fixed rod 4.

[0053] With the technical scheme, the rotor clamping device for high-temperature viscometer with high concentricity has the following advantages: the plurality of first grooves 6011 are arranged at the end of the sleeve 601 at equal intervals, and the end of the sleeve 601 (both ends) is divided into a petal structure, compared with the end of the sleeve 601 without the first grooves 6011, the petal structure will deform greatly (tighten) when it is subjected to a circumferential force. Specifically, after the end of the sleeve 601 away from the rotor 5 is inserted into the first fastening cylinder 602 and is threadedly connected with the first fastening cylinder 602, on the one hand, the first fastening cylinder 602 is connected with the sleeve 601, and on the other hand, the end of the sleeve 601 away from the rotor 5 deforms greatly and is clamped with the fixed rod 4; after the end of the sleeve 601 close to the rotor 5 is inserted into the second fastening cylinder 603 and is threadedly connected with the second fastening cylinder 603, on the one hand, the second fastening cylinder 603 is connected with the sleeve 601, and on the other hand, the end of the sleeve 601 close to the rotor 5 deforms greatly and is clamped with the fixed rod 4; in the above process, the two ends of the sleeve 601 are provided with threaded grooves.

[0054] It should be understood that, in order to control the deformation amount of the end of the sleeve 601 to be within a reasonable range, the number of the first grooves 6011 should also be controlled to be within a reasonable range; for example, the end of the sleeve 601 is provided with 2-8 first grooves 6011 at equal intervals, and as another example, the end of the sleeve 601 can be provided with 2, 3, 4, 5, 6, 7 or 8 first grooves 6011 at equal intervals.

[0055] As a possible implementation, the rotor clamping device for high-temperature viscometer with high concentricity has the following advantages: the second groove 6012 is arranged on the outer surface of the sleeve 601 at the end of the sleeve 601 where the first groove 6011 is arranged, the second groove 6012 is arranged at the end of the sleeve 601 to form a protruding block, and the end face of the protruding block is provided with a chamfer 6013; the end of the first fastening cylinder 602 away from the rotor 5 is arranged as a tapered structure matched with the chamfer 6013; the end of the second fastening cylinder 603 close to the rotor 5 is arranged as a tapered structure matched with the chamfer 6013.

[0056] In the high-temperature viscometer rotor clamping device with high concentricity, as described above, the second groove 6012 at the end of the sleeve 601 makes the end of the sleeve 601 have a protruding block, and further, the end face of the protruding block is circumferentially provided with a chamfer 6013; after the end of the sleeve 601 away from the rotor 5 extends into the first fastening cylinder 602 and is connected with the first fastening cylinder 602, the chamfer 6013 at the end of the sleeve 601 abuts against the tapered structure (which can be a hollow tapered surface) in the first fastening cylinder 602, and the central axis of the first fastening cylinder 602 and the sleeve 601 are on the same straight line; after the end of the sleeve 601 close to the rotor 5 extends into the second fastening cylinder 603 and is connected with the second fastening cylinder 603, the chamfer 6013 at the end of the sleeve 601 abuts against the tapered structure (which can be a hollow tapered surface) in the second fastening cylinder 603, and the central axis of the second fastening cylinder 603 and the sleeve 601 are on the same straight line; the technical solution further improves the concentricity of the components in the device during viscosity measurement (which can also be considered as improving the stability), and further improves the accuracy of viscosity measurement.

[0057] As a possible implementation, in the high-temperature viscometer rotor clamping device with high concentricity, the sleeve 604 is arranged on the sleeve 601 away from the first groove 6011.

[0058] In the above technical solution, after the first groove 6011 is arranged at the end of the sleeve 601 at equal intervals, and after the first fastening cylinder 602 and the second fastening cylinder 603 are connected with the end of the sleeve 601, a part of the deformation is inevitably transmitted to the middle part of the sleeve 601, which may affect the concentricity of the components in the device during operation (caused by the deformation of the middle part of the sleeve 601), therefore, the arrangement of the sleeve 604 improves the strength of the middle part of the sleeve 601, avoids deformation of the middle part of the sleeve 601, and further improves the stability of the device. Further, as another possible implementation, the sleeve 604 can be a heat shrink tube, which not only improves the strength of the middle part of the sleeve 601, but also makes the corundum rod inserted into the sleeve 601 tightly contact with the sleeve 601 after being heated according to the high-temperature shrinkage characteristics, further avoiding slight rotation of the corundum rod during viscosity measurement, and further affecting the concentricity of the clamping device; for example, the material of the heat shrink tube can be high-pressure polyethylene (PE), polytetrafluoroethylene (PTEE), or polyperfluorobutadiene (FEP).

[0059] As a possible implementation, the high-temperature viscometer rotor clamping device with high concentricity further comprises a hook 7, and the clamping mechanism 6 and the connecting ring 3 are connected through the hook 7. In the technical solution, the hook 7 facilitates replacement of the clamping mechanism 6 and the fixing rod 4.

[0060] As a possible implementation, the rotor clamping device for high-temperature viscometer with high concentricity of the utility model, the first fastening cylinder 602 bottom is provided with the connecting part 6021, the hook 7 one end is connected with the connecting part 6021, the other end is connected with the connecting ring 3, adopt the technical scheme under the condition, the setting of this connecting part 6021 is convenient for connecting the first fastening cylinder 602 with the hook 7.

[0061] As a possible implementation, the rotor clamping device for high-temperature viscometer with high concentricity of the utility model, the viscometer is provided with display screen, horizontal support and vertical support, the rotor clamping device further includes first imaging device and second imaging device, the horizontal support is provided with the first imaging device, the vertical support is provided with the second imaging device, and the first imaging device and the second imaging device are electrically connected with the display screen, the first imaging device is used for recording the concentricity of the rotor 5 in the horizontal direction when rotating, and the recording signal is transmitted to the viscometer and displayed on the display screen, the second imaging device is used for recording the concentricity of the rotor 5 in the vertical direction when rotating, and the recording signal is transmitted to the viscometer and displayed on the display screen, in the technical scheme, the recording signal of the rotor 5 in the horizontal direction and the vertical direction during the working process of the clamping device is displayed on the display screen, the user can observe the concentricity of the rotor 5 according to the display information, when the concentricity deviates greatly from the required value, the concentricity can be controlled in a reasonable range by adjusting the speed of the viscometer (actually adjusting the speed of the rotating part 1), replacing the rotor 5, and repairing or replacing the parts, so as to avoid the great deviation between the detected value and the actual value of the viscosity.

[0062] In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0063] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A rotor holding device for a high temperature viscometer having a high concentricity, said viscometer having a rotating portion, a rotation end surface of the rotating portion being provided with a rotary joint, characterized by, The adapter is provided with a connecting ring, and the rotor clamping device comprises: A fixed rod is provided as a hollow rod, and a first through hole is formed in the side surface of the fixed rod; A rotor comprises a connecting rod and a rotor end connected to the connecting rod, wherein the outer diameter of the connecting rod is less than or equal to the inner diameter of the fixed rod, and a second through hole is formed in the side surface of the connecting rod; A limiting rod, the connecting rod extends into the interior of the fixed rod, and the limiting rod sequentially passes through the first through hole and the second through hole; A clamping mechanism is sleeved on the outer surface of the fixed rod, and an end of the clamping mechanism away from the rotor is connected to the connecting ring.

2. The rotor holding device for a high-temperature viscometer with high concentricity according to claim 1, characterized by, The clamping mechanism comprises: A sleeve is sleeved on the outer surface of the fixed rod; A first fastening cylinder has a cylinder bottom, the first fastening cylinder is sleeved on the surface of the sleeve at an end away from the rotor, and the cylinder bottom is connected to the connecting ring; A second fastening cylinder is sleeved on the surface of the sleeve at an end close to the rotor.

3. The rotor holding device for a high-temperature viscometer with high concentricity according to claim 2, characterized by A plurality of first grooves are equally spaced at the end of the sleeve; An end of the sleeve away from the rotor extends into the first fastening cylinder and is threadedly connected with the first fastening cylinder; An end of the sleeve close to the rotor extends into the second fastening cylinder and is threadedly connected with the second fastening cylinder.

4. The rotor holding device for a high-temperature viscometer with high concentricity according to claim 3, characterized by A second groove is formed on the outer surface of the sleeve at the end of the sleeve where the first grooves are located, the second groove is configured to make the end of the sleeve have a protruding block, and a chamfer is circumferentially arranged on the end face of the protruding block; The end of the first fastening cylinder away from the rotor is configured as a tapered structure matched with the chamfer; The end of the second fastening cylinder close to the rotor is configured as a tapered structure matched with the chamfer.

5. The rotor holding device for a high-temperature viscometer with high concentricity according to claim 4, characterized by A sleeve is arranged on the sleeve away from the first grooves.

6. The rotor holding device for a high-temperature viscometer with high concentricity according to claim 5, characterized by Further comprising: A hook, the clamping mechanism and the connecting ring are connected through the hook.

7. The rotor holding device for high-temperature viscometers with high concentricity according to claim 6, characterized in that, The cylinder bottom of the first fastening cylinder is provided with a connecting portion; One end of the hook is connected to the connecting portion, and the other end is connected to the connecting ring.

8. The rotor clamping device for high-temperature viscometer with high concentricity according to claim 7, characterized by, The end of the sleeve is equally spaced with 2-8 first grooves.

9. The rotor clamping device for high-temperature viscometers with high concentricity according to claim 8, characterized in that The sleeve is a heat shrink tube.

10. The rotor clamping device for high-temperature viscometers with high concentricity according to claim 9, characterized in that The viscometer is provided with a display screen, a horizontal support and a vertical support, and the rotor clamping device further comprises: A first imaging device and a second imaging device; The horizontal support is provided with the first imaging device, and the vertical support is provided with the second imaging device, and the first imaging device and the second imaging device are respectively electrically connected to the display screen; The first imaging device is used for recording the horizontal concentricity of the rotor during rotation, transmitting a recording signal to the viscometer, and displaying on the display screen; The second imaging device is used for recording the vertical concentricity of the rotor during rotation, transmitting a recording signal to the viscometer, and displaying on the display screen.

Images