Multi-speed adjustable rotary viscometer

Abstract

The utility model relates to the technical field of viscosity detection equipment, and discloses a multi-speed adjustable rotary viscometer which comprises a base, a stand column fixedly mounted on the top of the base, a rear plate movably mounted on the rear side of the stand column, a front plate fixedly mounted on the front side of the rear plate, a motor fixedly mounted on the rear side of the rear plate, and a case fixedly mounted on the top of the front plate, the motor is electrically connected with the case through a connecting wire, a connecting seat is fixedly mounted at the bottom of the case, and a machine shaft is movably mounted at the bottom of the case in the connecting seat. The connecting seat is fixedly mounted at the bottom of the case, so that adjustment can be provided for mounting of the fastener, the protection arms are movably mounted on the outer side of the fastener through the two mounting shafts respectively, the first connecting rod and the second connecting rod are fixedly mounted at the bottoms of the two protection arms respectively, and the first connecting rod and the second connecting rod are movably connected with each other. When a medium in the outer cylinder is stirred through the rotor, the two protection arms are supported on the inner side of the outer cylinder, and therefore the outer cylinder is rapidly positioned and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of viscosity detection equipment, in particular to a multi-speed adjustable rotational viscometer. Background Art

[0002] Rotational viscometers apply shear stress to a liquid sample by rotating the stator or rotor, and measure the required torque and angular velocity to calculate the viscosity of the liquid. Rotational viscometers are widely used to measure the viscosity of various fluids.

[0003] A protective rod is also provided on the outside of the rotor to reduce or avoid collisions between the rotor and a container containing a test medium during measurement, thereby extending the service life of the rotor. For example, the Chinese utility model patent disclosed in publication number CN213239843U is a rotational viscometer. The application includes a workbench, a column is fixedly provided on the workbench, the column is provided with a mounting seat, a detection motor is provided on the mounting seat, an output shaft of the detection motor is fixed with a rotating shaft, and the rotating shaft rotates coaxially with the output shaft of the detection motor, an outer cylinder is provided on the workbench, the rotating shaft is vertically arranged directly above the outer cylinder, and a clamping device for fixing the outer cylinder is provided on the workbench. On the one hand, the rotor in this application is not provided with a protective rod on the outside, which can easily cause the rotor to collide with the inner wall of the outer cylinder and be damaged. On the other hand, the positioning and fixing of the detection cylinder in this application is achieved by a clamping mechanism, which makes the structure of the entire viscometer complicated and increases the difficulty of subsequent maintenance. At the same time, it is impossible to quickly position and fix the outer cylinder by the clamping mechanism, and the overall operation is not convenient. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-speed adjustable rotational viscometer, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A multi-speed adjustable rotational viscometer comprises a base, a column fixedly mounted on the top of the base, a rear plate movably mounted on the rear side of the column, a front plate fixedly mounted on the front side of the rear plate, a motor fixedly mounted on the rear side of the rear plate, a chassis fixedly mounted on the top of the front plate, and the motor is electrically connected to the chassis via a connecting line, a connecting seat fixedly mounted on the bottom of the chassis, a shaft movably mounted on the bottom of the chassis located in the connecting seat, a rotor movably mounted on the bottom of the shaft, a fastener movably mounted on the outside of the connecting seat, two mounting shafts movably mounted on the outside of the fastener, a protective arm movably mounted on the mounting shaft, a first connecting rod fixedly mounted on the bottom of one of the protective arms, a second connecting rod fixedly mounted on the bottom of the other protective arm, and the first connecting rod and the second connecting rod movably connected to each other.

[0007] As a further preferred solution of the present invention, a tooth plate is fixedly installed on one side of the column.

[0008] As a further preferred embodiment of the present invention, four axles are fixedly mounted on the front side of the rear plate, guide wheels are rotatably mounted on the axles, the rear side of the front plate is fixedly mounted on the front side of the four axles, and a gear is fixedly mounted on the output end of the motor, and the gear is meshed with the gear plate;

[0009] Based on this, the rear plate and the front plate are movably mounted on the column through four guide wheels, and the chassis can be raised and lowered by cooperating with the motor, gear and tooth plate.

[0010] As a further preferred embodiment of the present invention, two screw grooves are provided on the outer side of the fastener, and the fastener is clamped on the outer side of the connecting seat;

[0011] Based on this, with the help of the setting of the fasteners, the two protection arms can be quickly installed on the outside of the rotor.

[0012] As a further preferred solution of the present invention, a plurality of annular grooves are provided on the outer side of the installation shaft, and one side of the installation shaft is threadedly connected to the corresponding screw groove on the outer side of the fastener.

[0013] As a further preferred embodiment of the present invention, a socket is provided in the protective arm, an inner fixing ring is fixedly installed in the socket, a plurality of spring pieces are fixedly installed on the inner side of the inner fixing ring, a mounting groove is provided on one side of the protective arm located below the socket, a through groove is provided on the inner side of the mounting groove, a rubber pad is movably installed in the mounting groove, and the protective arm is installed on the corresponding mounting shaft through the inner fixing ring, and the spring pieces are clamped in the corresponding annular groove.

[0014] As a further preferred embodiment of the present invention, a clip is fixedly mounted on one side of the rubber pad, the transverse cross-section of the clip is T-shaped, the rubber pad is inserted into the mounting groove, and the clip is mounted in the through groove;

[0015] Based on this, the fastener is installed on the mounting shaft through the inner fixing ring and the spring clip, which can quickly adjust the distance between the two protective arms. The setting of the rubber pad can support the two protective arms in the container to ensure the stability of the container.

[0016] As a further preferred embodiment of the present invention, a sliding groove is provided in the first connecting rod, a slider is fixedly installed on one side of the bottom of the second connecting rod, the slider is inserted into the sliding groove, and the bottom of the slider located in the sliding groove is also threadedly connected to a limit screw;

[0017] Based on this, the two first connecting rods and the second connecting rod are movably connected to each other through sliders and limit screws, so that when the fastener is deformed and disassembled, the deformation of the fastener is prevented from being affected by the fixation of the two protective arm structures.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the utility model, a connecting seat is fixedly installed at the bottom of the chassis to provide adjustment for the installation of the fastener, and a protective arm is movably installed on the outside of the fastener through two installation shafts, and a first connecting rod and a second connecting rod are fixedly installed on the bottom of the two protective arms, and the first connecting rod and the second connecting rod are movably connected to each other. When the medium in the outer cylinder is stirred by the rotor, the two protective arms are supported on the inner side of the outer cylinder, thereby realizing rapid positioning and fixing of the outer cylinder and protecting the rotor at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the mounting structure of the fastener and the protective wall mounting shaft of the present invention;

[0022] Figure 3 This is a schematic diagram of the split structure of the fastener and the protective wall mounting shaft of the utility model;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0025] Figure 6 This is a schematic diagram of the split structure of the first connecting rod and the second connecting rod of the utility model.

[0026] In the figure: 1. Base; 2. Column; 3. Back plate; 4. Motor; 5. Axle; 6. Front plate; 7. Chassis; 8. Connecting seat; 9. Rotor; 10. Fastener; 11. Protective arm; 12. First connecting rod; 13. Second connecting rod; 14. Mounting shaft; 15. Tooth plate; 16. Guide wheel; 17. Gear; 18. Screw groove; 19. Annular groove; 20. Socket; 21. Inner fixing ring; 22. Spring piece; 23. Mounting groove; 24. Through groove; 25. Rubber pad; 26. Card strip; 27. Slide groove; 28. Slider; 29. ​​Limit screw; 30. Machine shaft. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] like Figures 1-6 As shown, the utility model provides a multi-speed adjustable rotational viscometer, including a base 1, a column 2 is fixedly installed on the top of the base 1, a rear plate 3 is movably installed on the rear side of the column 2, a front plate 6 is fixedly installed on the front side of the rear plate 3, a motor 4 is fixedly installed on the rear side of the rear plate 3, a chassis 7 is fixedly installed on the top of the front plate 6, and the motor 4 is electrically connected to the chassis 7 through a connecting line, a connecting seat 8 is fixedly installed on the bottom of the chassis 7, and a shaft 30 is movably installed on the bottom of the chassis 7 located in the connecting seat 8, a rotor 9 is movably installed on the bottom of the shaft 30, a fastener 10 is movably installed on the outside of the connecting seat 8, two mounting shafts 14 are movably installed on the outside of the fastener 10, a protective arm 11 is movably installed on the mounting shaft 14, a first connecting rod 12 is fixedly installed on the bottom of one of the protective arms 11, and a second connecting rod 13 is fixedly installed on the bottom of the other protective arm 11, and the first connecting rod 12 and the second connecting rod 13 are movably connected to each other.

[0029] A toothed plate 15 is fixedly mounted on one side of the column 2, four axles 5 are fixedly mounted on the front side of the rear plate 3, guide wheels 16 are rotatably mounted on the axles 5, and the rear side of the front plate 6 is fixedly mounted on the front side of the four axles 5. A gear 17 is fixedly mounted on the output end of the motor 4, and the gear 17 is meshed with the toothed plate 15. Based on this, the rear plate 3 and the front plate 6 are movably mounted on the column 2 through the four guide wheels 16, and the motor 4, the gear 17, and the toothed plate 15 are coordinated to realize the lifting and lowering adjustment of the chassis 7;

[0030] like Figure 2-Figure 6As shown, two screw grooves 18 are provided on the outside of the fastener 10, and the fastener 10 is clamped on the outside of the connecting seat 8. Based on this, with the help of the setting of the fastener 10, the two protection arms 11 can be quickly installed on the outside of the rotor 9. A plurality of annular grooves 19 are provided on the outside of the mounting shaft 14. One side of the mounting shaft 14 is threadedly connected to the corresponding screw groove 18 on the outside of the fastener 10. A socket 20 is provided in the protection arm 11, and an inner fixing ring 21 is fixedly installed in the socket 20. A plurality of spring pieces 22 are fixedly installed on the inner side of the inner fixing ring 21. A mounting groove 23 is provided on one side of the protection arm 11 located below the socket 20, and a through groove 24 is provided on the inside of the mounting groove 23. A rubber pad 25 is movably installed in the mounting groove 23, and the protection arm 11 is inserted and installed on the corresponding mounting shaft 14 through the inner fixing ring 21. The spring piece 22 is clamped in the corresponding annular groove 19, and a clamping strip 26 is fixedly installed on one side of the rubber pad 25. The transverse cross-section of 26 is T-shaped, the rubber pad 25 is inserted and installed in the installation groove 23, and the clamping strip 26 is clamped in the through groove 24. Based on this, the fastener 10 is inserted and installed on the installation shaft 14 through the inner fixing ring 21 and the spring piece 22, and the distance between the two protective arms 11 can be quickly adjusted. The setting of the rubber pad 25 can support the two protective arms 11 in the container to ensure the stability of the container. A sliding groove 27 is provided in the first connecting rod 12, and a slider 28 is fixedly installed on one side of the bottom of the second connecting rod 13. The slider 28 is inserted and installed in the sliding groove 27, and the bottom of the slider 28 located in the sliding groove 27 is also threadedly connected to the limiting screw 29. Based on this, the two first connecting rods 12 and the second connecting rod 13 are movably connected to each other through the slider 28 and the limiting screw 29, which can prevent the deformation of the fastener 10 from being affected by the fixed structure of the two protective arms 11 when the fastener 10 is deformed and disassembled.

[0031] It should be noted that the present invention is a multi-speed adjustable rotational viscometer. When using the equipment to test the viscosity of a medium, the fastener 10 can be first clamped to the outside of the connecting seat 8 using the guide arc edges at both ends, and the fastener 10 can be deformed through the connecting seat 8, so that the fastener 10 can be quickly installed on the outside of the connecting seat 8. At the same time, when the fastener 10 is deformed, the fastener 10 drives the corresponding protective arms 11 to shift their positions through the mounting shafts 14 on both sides, and the two protective arms 11 respectively drive the first connecting rod 12 and the second connecting rod 13 at the bottom to shift synchronously, so that the first connecting rod 12 and the second connecting rod 13 can be rotated and displaced relative to each other through the slide groove 27 and the slider 28 respectively. Subsequently, the top of the rotor 9 can be threadedly connected to the bottom of the machine shaft 30, and then the container filled with the medium can be placed under the rotor 9 and controlled by the chassis 7. The motor 4 is started, and the output end of the motor 4 drives the gear 17 to rotate, and the gear 17 is meshed with the toothed plate 15, so that the rear plate 3 and the front plate 6 cooperate with the four guide wheels 16 to move up and down on the column 2. As a result, the front plate 6 drives the chassis 7 to move down synchronously, and then the chassis 7 drives the connecting seat 8 and the machine shaft 30 to move down, so that the rotor 9 and the two fasteners 10 can be inserted into the container respectively. Then, the two protective arms 11 can be pulled to one side respectively, so that the upper part of the two protective arms 11 can move on the corresponding mounting shaft 14 through the inner fixing ring 21, and the spring piece 22 on the inner side of the inner fixing ring 21 can be clamped in the corresponding annular groove 19 in sequence due to the toughness of the material, so that the protective arm 11 can be limited in real time, so that the rubber pad 25 on one side of the two protective arms 11 is squeezed against the inner side of the container, thereby realizing the positioning and fixation of the container and protecting the rotor 9.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A multi-speed adjustable rotational viscometer, characterized in that: The invention comprises a base (1), a column (2) is fixedly mounted on the top of the base (1), a rear plate (3) is movably mounted on the rear side of the column (2), a front plate (6) is fixedly mounted on the front side of the rear plate (3), a motor (4) is fixedly mounted on the rear side of the rear plate (3), a chassis (7) is fixedly mounted on the top of the front plate (6), and the motor (4) is electrically connected to the chassis (7) through a connecting line, a connecting seat (8) is fixedly mounted on the bottom of the chassis (7), and a shaft (3) is movably mounted on the bottom of the chassis (7) located in the connecting seat (8). 0), a rotor (9) is movably mounted on the bottom of the machine shaft (30), a fastener (10) is movably mounted on the outer side of the connecting seat (8), two mounting shafts (14) are movably mounted on the outer side of the fastener (10), and a protective arm (11) is movably mounted on the mounting shaft (14), wherein a first connecting rod (12) is fixedly mounted on the bottom of one of the protective arms (11), and a second connecting rod (13) is fixedly mounted on the bottom of the other protective arm (11), and the first connecting rod (12) and the second connecting rod (13) are movably connected to each other.

2. A multi-speed adjustable rotational viscometer according to claim 1, characterized in that: A toothed plate (15) is fixedly mounted on one side of the column (2).

3. The multi-speed adjustable rotational viscometer according to claim 2, characterized in that: Four axles (5) are fixedly mounted on the front side of the rear plate (3), and guide wheels (16) are rotatably mounted on the axles (5). The rear side of the front plate (6) is fixedly mounted on the front side of the four axles (5). A gear (17) is fixedly mounted on the output end of the motor (4), and the gear (17) is meshed with the gear plate (15).

4. The multi-speed adjustable rotational viscometer according to claim 1, characterized in that: Two screw grooves (18) are provided on the outside of the fastener (10), and the fastener (10) is clamped on the outside of the connecting seat (8).

5. The multi-speed adjustable rotational viscometer according to claim 4, characterized in that: A plurality of annular grooves (19) are formed on the outside of the installation shaft (14), and one side of the installation shaft (14) is threadedly connected to a corresponding screw groove (18) on the outside of the fastener (10).

6. The multi-speed adjustable rotational viscometer according to claim 5, characterized in that: The protective arm (11) is provided with a socket (20), an inner fixing ring (21) is fixedly installed in the socket (20), and a plurality of spring pieces (22) are fixedly installed on the inner side of the inner fixing ring (21). A mounting groove (23) is provided on one side of the protective arm (11) below the socket (20), a through groove (24) is provided on the inner side of the mounting groove (23), and a rubber pad (25) is movably installed in the mounting groove (23). The protective arm (11) is installed on the corresponding mounting shaft (14) through the inner fixing ring (21), and the spring pieces (22) are clamped in the corresponding annular groove (19).

7. The multi-speed adjustable rotational viscometer according to claim 6, characterized in that: A clamping strip (26) is fixedly mounted on one side of the rubber pad (25), and the transverse cross-section of the clamping strip (26) is T-shaped. The rubber pad (25) is inserted into the mounting groove (23), and the clamping strip (26) is clamped into the through groove (24).

8. The multi-speed adjustable rotational viscometer according to claim 1, characterized in that: A sliding groove (27) is provided in the first connecting rod (12), and a slider (28) is fixedly installed on one side of the bottom of the second connecting rod (13). The slider (28) is inserted into the sliding groove (27), and the bottom of the slider (28) located in the sliding groove (27) is also threadedly connected to a limiting screw (29).

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