A rotational viscometer

Abstract

The utility model belongs to the technical field of viscosimeter, concretely relates to a rotary viscosimeter, including main part and rotor, still include mounting panel and slide rail, a plurality of mounting blocks are slidably installed on the mounting panel, the gear ring threaded cylinder is installed on the mounting block, the threaded mounting cylinder is installed on the gear ring threaded cylinder, the bottom of main part is equipped with slide rail, the movable block is slidably installed on the slide rail, the inside of slide rail is equipped with two electric winding drums that are connected with the two ends of movable block's sidewall convex respectively, be equipped with motor gear and magnet on the movable block, set up motor gear, movable block, magnet and electric winding drum on the slide rail of setting up the slide rail on the main part, only set up motor gear and electric winding drum as driving piece that are located on movable block, have reduced the production cost of device, when each component that sets up on the mounting block is damaged, directly can be taken off the mounting panel that installs damaged component, have improved the efficiency that staff member maintains device.

Description

Technical Field

[0001] This utility model belongs to the field of viscometer technology, specifically relating to a rotational viscometer. Background Technology

[0002] A rotational viscometer is used to measure the viscous resistance and dynamic viscosity of liquids. It is widely used to determine the viscosity of various fluids such as oils, paints, plastics, food, pharmaceuticals, cosmetics, and adhesives. During use, operators need to select a suitable rotor based on the liquid being tested and install it on the viscometer. Patent application number "CN202322962275.0" discloses an automatic rotor changing device for testing the viscosity of cigarette adhesives. This device includes a support frame, a rotating frame rotatably mounted on the upper end of the support frame, and a motor a fixedly mounted to drive the rotating frame. The outer end of the rotating frame is threaded with at least two clamping cylinders. The inner side of each clamping cylinder has a channel through which the rotor passes, and clamping elements are provided on the sidewalls of the channel for holding the rotor. A slide is rotatably mounted on the outer side of the clamping cylinders and slidably connected to the rotating frame. An electromagnetic clutch and a motor b driving the drive shaft of the electromagnetic clutch are fixedly mounted on the slide. The driven shaft of the electromagnetic clutch is connected to the clamping cylinders via gear transmission. The electromagnetic clutch, motor b, and motor a are electrically connected to the viscometer control box.

[0003] The aforementioned patent achieves automatic rotor installation by setting multiple rotors, electromagnetic clutches, and motors b on a rotating frame. However, the aforementioned device requires electromagnetic clutches and motors b to be set on each clamping cylinder for installing rotors, which increases the production cost of the device. Moreover, the structure of the aforementioned device is relatively complex, and it is inconvenient for users to replace damaged parts when they are damaged. Utility Model Content

[0004] This invention provides a rotational viscometer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotational viscometer, comprising a main body and a rotor, the main body being slidably mounted on a movable rod, a threaded pressure block cooperating with the movable rod being threadedly mounted on the main body, and further comprising a mounting plate and a slide rail, the mounting plate being slidably mounted on the movable rod, the threaded pressure block being threadedly mounted on the mounting plate, a plurality of mounting blocks being slidably mounted on the mounting plate, a toothed ring threaded cylinder being rotatably mounted on the mounting block, a mounting sleeve being threadedly mounted on the toothed ring threaded cylinder, the mounting sleeve being slidably mounted on a side wall protrusion of the mounting block, the rotor being rotatably mounted on the mounting sleeve, a slide rail being provided at the bottom of the main body cooperating with the mounting block, a movable block being slidably mounted on the slide rail, two electric winding drums being provided inside the slide rail respectively connected to the two ends of the side wall protrusion of the movable block, and an electric gear cooperating with the toothed ring portion of the toothed ring threaded cylinder and a magnet cooperating with the mounting block being provided on the movable block.

[0006] Preferably, a spring telescopic rod connected to the main body is slidably mounted on an annular groove provided on the top surface of the mounting plate.

[0007] Preferably, a plug is spring-loaded onto the side wall of the groove on the mounting plate where the mounting block is mounted, and the side wall of the mounting block has a groove that mates with the plug.

[0008] Preferably, the mounting plate has an indicator strip at the edge of the groove where the mounting block is mounted, which cooperates with the slide rail.

[0009] Preferably, the movable block has a buffer pad on its side wall facing the mounting block.

[0010] Preferably, a marking strip is provided on the side wall of the mounting plate at the position corresponding to the mounting cylinder.

[0011] Preferably, the side wall of the movable rod is provided with a groove, and the side wall of the groove on which the main body mounts the movable rod is provided with a protrusion that mates with the side wall groove of the movable rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention features an electric gear, a moving block, a magnet, and an electric winding drum mounted on a slide rail on the main body. In use, the moving block is positioned to engage with the mounting block, at which point the electric gear meshes with the toothed ring threaded cylinder. The user can control the movement of the mounting cylinder on the toothed ring threaded cylinder via the electric gear, thus achieving automatic rotor installation and removal. The device uses only the electric gear and electric winding drum on the moving block as driving components, reducing production costs. The mounting block slides on a groove in the side wall of the mounting plate. If any component on the mounting block is damaged, the mounting plate containing the damaged component can be directly removed, improving the efficiency of device maintenance. Multiple grooves and corresponding markings on the mounting plate facilitate the user's selection of the appropriate rotor for installation on the main body. A spring-loaded telescopic rod connects the main body and the mounting plate; when one of the fixings on the main body or the mounting plate is released, the spring-loaded telescopic rod ensures the stability of the released main body or mounting plate, allowing the user to easily adjust the released main body or mounting plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a side sectional view of the present invention.

[0016] Figure 3 for Figure 2 Schematic diagram of the structure at point A;

[0017] Figure 4 This is a schematic diagram of the structure of the electric gear and the toothed ring threaded cylinder when they are engaged in this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the toothed ring threaded cylinder installed at the mounting block in this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the part of the mounting plate that is mounted on the moving rod in this utility model.

[0020] In the diagram: 1. Main body; 11. Spring telescopic rod; 12. Moving rod; 13. Threaded pressure block; 2. Mounting plate; 21. Mounting cylinder; 22. Mounting block; 23. Electric gear; 24. Gear ring threaded cylinder; 3. Slide rail; 31. Moving block; 32. Magnet; 33. Electric winding drum; 4. Rotor. Detailed Implementation

[0021] Please see Figure 1-6This utility model provides the following technical solution: a rotational viscometer, including a main body 1 and a rotor 4. The main body 1 is slidably mounted on a moving rod 12. A threaded pressure block 13 that mates with the moving rod 12 is threadedly mounted on the main body 1. The device also includes a mounting plate 2 and a slide rail 3. The mounting plate 2 is slidably mounted on the moving rod 12. The threaded pressure block 13 is threadedly mounted on the mounting plate 2. Multiple mounting blocks 22 are slidably mounted on the mounting plate 2. A toothed ring threaded cylinder 24 is rotatably mounted on the mounting block 22. An mounting cylinder 21 is threadedly installed and slidably mounted on the side wall protrusion of the mounting block 22. A rotor 4 is rotatably mounted on the mounting cylinder 21. The bottom of the main body 1 is provided with a slide rail 3 that cooperates with the mounting block 22. A moving block 31 is slidably mounted on the slide rail 3. Inside the slide rail 3 are two electric winding drums 33 that are respectively connected to the two ends of the side wall protrusion of the moving block 31. The moving block 31 is provided with an electric gear 23 that cooperates with the toothed ring part of the toothed threaded cylinder 24 and a magnet 32 ​​that cooperates with the mounting block 22.

[0022] The main body 1 is used to detect the viscosity of the liquid. Main body 1 is electrically connected to all the electrical components of the device, facilitating user control of their operation. Main body 1 is a common and mature structure; its working principle and structure do not require detailed description in the instruction manual. The movable rod 12 is used to mount main body 1. Main body 1 and mounting plate 2 are slidably mounted on the movable rod 12. During use, the user adjusts the position of main body 1 and mounting plate 2 by controlling their sliding motion on the movable rod 12. The threaded pressure block 13 is used to fix main body 1 and mounting plate 2. The threaded pressure block 13 consists of a threaded rod and a pressure block rotatably mounted on the threaded rod. After main body 1 and mounting plate 2 are moved to the appropriate position, the threaded rod is rotated, and the threaded rod, under the action of the thread... The pressure block moves along the track, and the moving pressure block presses against the moving rod 12. At this time, the main body 1 and the mounting plate 2 are fixed by the threaded pressure block 13. The mounting plate 2 has multiple grooves for mounting the mounting block 22. The mounting cylinder 21 is mounted on the mounting block 22 and is used to mount the rotor 4. The rotor 4 is used by the main body 1 to detect the viscosity of the liquid. The bottom of the main body 1 has an insertion port for mounting the rotor 4. The top surface of the rotor 4 has a groove. The bottom insertion port of the main body 1 has a protrusion that mates with the groove on the top surface of the rotor 4. The mating of the groove on the top surface of the rotor 4 and the mating protrusion serves as a limit, ensuring that the main body 1 can smoothly rotate the rotor 4 mounted on the main body 1 during operation. The mounting cylinder 21 is slidably mounted on the mounting block 22. On the protrusion, the toothed ring threaded cylinder 24 is rotatably mounted on the mounting block 22. The mounting cylinder 21 is threaded onto the inner wall thread of the toothed ring threaded cylinder 24. When the toothed ring threaded cylinder 24 rotates, the mounting cylinder 21 begins to move under the action of the thread. The moving mounting cylinder 21 feeds the rotor 4 into the insertion port of the main body 1 for mounting the rotor 4, thus realizing the installation of the rotor 4. The groove on the side wall protrusion of the mounting cylinder 21 and the cooperation with the side wall protrusion of the mounting block 22 play a limiting role, ensuring that the mounting cylinder 21 will not be rotated by the toothed ring threaded cylinder 24 during the movement, thus ensuring the stability of the mounting cylinder 21 during the movement. The slide rail 3 is used for the movement of the mounting block 22. The length of the groove set on the slide rail 3 ensures that the mounting block 22 moves close to the slide rail 3. When the main body 1 is positioned at one end, the rotor 4 is located in a position that mates with the bottom insertion port of the main body 1, facilitating the user's installation of the rotor 4. A magnet 32 ​​on the movable block 31 is used to fix the mounting block 22 onto the movable block 31, ensuring that the movable block 31 can smoothly move with the mounting block 22 during movement. An electric winding drum 33 on the slide rail 3 is connected to the movable block 31 via a pull line. The pull lines wound on the two electric winding drums 33 are connected to the movable block 31 at the two protruding side walls of the movable block 31, respectively. During use, the two electric winding drums 33 are controlled to wind and unwind the pull lines, respectively. The movable block 31 begins to move under the influence of the wound pull lines, and the unwound pull lines ensure that the movement of the movable block 31 is not obstructed.Two pull cords are respectively set on the two protruding side walls of the movable block 31, ensuring that the user can freely control the movable block 31 to slide back and forth on the slide rail 3, realizing free adjustment of the position of the movable block 31. When installing the rotor 4, the two electric winding drums 33 are controlled to wind and release the pull cords respectively. The movable block 31 moves towards the mounting plate 2 under the drive of the pull cords. When the movable block 31 moves to the state of being in contact with the mounting block 22, the mounting block 22 is attracted to the movable block 31 under the action of the magnet 32. The two electric winding drums 33 are controlled to rotate in opposite directions. The movable block 31, driven by the pull cords, carries the mounting drum 21 and the mounting block. 22 moves to the bottom of the main body 1, at which point the rotor 4 is moved to a position that mates with the bottom insertion port of the main body 1, realizing the conveying of the rotor 4 to be installed. The moving block 31 is equipped with an electric gear 23 that mates with the external gear ring of the toothed ring threaded cylinder 24. When the moving block 31 is in contact with the mounting block 22, the electric gear 23 and the gear ring on the toothed ring threaded cylinder 24 are in a meshing state. When the electric gear 23 is started, the toothed ring threaded cylinder 24 begins to rotate under the drive of the electric gear 23, realizing the automatic adjustment of the position of the rotor 4 and the mounting cylinder 21. The mounting plate 2 is equipped with multiple mounting cylinders 21 and mounting blocks 22, each mounting The rotors 4 mounted on cylinder 21 have different shapes and sizes. Mounting plate 2 is rotatably mounted on moving rod 12. Rotating mounting plate 2 changes the mounting block 22 that mates with slide rail 3, facilitating user replacement of the rotors 4 mounted on the main body 1. Users can easily select the appropriate rotor 4 to install on the main body 1 according to actual conditions. When using the device, the threaded clamping block 13 is released from the main body 1, and the main body 1 is lowered. Driven by the lowering main body 1, the rotors 4 are inserted into the liquid to be tested. At this time, the main body 1 can detect the viscosity of the liquid by controlling the rotation of the rotors 4. Slide rail 3 is fixed on the main body 1. During the movement, the slide rail 3 and the rotor 4 moved onto the slide rail 3 will be moved along with it, ensuring the stability of the rotor 4 after it is installed on the main body 1. The shape of the through groove on the mounting plate 2 ensures that the main body 1 can pass smoothly through the through groove during the downward movement, preventing the mounting plate 2 from obstructing the movement of the main body 1. The side wall protrusion of the mounting moving rod 12 of the main body 1 is separated from the mounting plate 2, ensuring that the main body 1 will not be obstructed by the mounting plate 2 during the downward movement. When the user replaces the rotor 4 installed on the mounting plate 2, the mounting block 22 can be removed from the mounting plate 2, making it convenient for the user to replace the rotor 4.

[0023] Specifically, a spring telescopic rod 11 connected to the main body 1 is slidably installed on the annular groove provided on the top surface of the mounting plate 2.

[0024] The spring telescopic rod 11 is used to connect the main body 1 and the mounting plate 2. During the use of the device, the spring telescopic rod 11 ensures that the distance between the main body 1 and the mounting plate 2 remains unchanged when the main body 1 and the mounting plate 2 are not subjected to external force, thus ensuring the stability of the main body 1 and the mounting plate 2. The spring telescopic rod 11 is slidably installed on the groove on the top surface of the mounting plate 2. When the user adjusts the mounting block 22 that cooperates with the slide rail 3 by rotating the mounting plate 2, the spring telescopic rod 11 slides on the annular groove provided on the mounting plate 2, ensuring that the rotation of the mounting plate 2 is not hindered. The end face of the spring telescopic rod 11 is provided with a protrusion, and the side wall of the annular groove provided on the mounting plate 2 is provided with a groove that cooperates with the end face protrusion of the spring telescopic rod 11. The cooperation between the end face protrusion of the spring telescopic rod 11 and the groove that cooperates with it serves to limit the movement. The spring telescopic rod 11 ensures the stability of the spring telescopic rod 11 after it is installed on the mounting plate 2. When the user tests the viscosity of the liquid, he releases the threaded pressure block 13 from the main body 1, presses down on the main body 1, and the spring telescopic rod 11 is compressed. After the main body 1 moves the rotor 4 into the liquid, the threaded pressure block 13 fixes the moved main body 1. After the device is used, the threaded pressure block 13 is released from the main body 1, and the spring telescopic rod 11 returns to its original state. The spring telescopic rod 11 moves the main body 1 back to its original position, realizing the automatic reset of the main body 1 and the rotor 4. When the user releases the fixation of either the main body 1 or the mounting plate 2, the released main body 1 or the mounting plate 2 will not move under the action of the spring telescopic rod 11, which makes it convenient for the user to adjust the released main body 1 or the mounting plate 2.

[0025] Specifically, the mounting plate 2 has a spring-loaded insert on the side wall of the groove for mounting block 22, and the side wall of mounting block 22 has a groove that mates with the insert.

[0026] The cooperation between the insert block and the side wall groove of the mounting block 22 serves as a limiting function, ensuring the stability of the mounting block 22 after it is installed on the side wall groove of the mounting plate 2. The side walls of the part of the insert block located inside the side wall groove of the mounting plate 2 are inclined. During the process of the mounting block 22 moving in and out of the side wall groove of the mounting plate 2, the insert block will be pushed into the groove of the mounting insert block, ensuring that the insert block will not obstruct the movement of the mounting block 22. The spring set on the mounting block 22 ensures that the mounting block 22 can quickly move back to its original position after being pushed, ensuring the working effect of the insert block.

[0027] Specifically, the mounting plate 2 has an indicator strip at the edge of the groove of the mounting block 22 that mates with the slide rail 3.

[0028] The indicator strip on the mounting plate 2 serves a positioning function. When the user controls the mounting plate 2 to rotate, the interaction between the indicator strip on the mounting plate 2 and the edge of the slide rail 3 allows the user to quickly determine whether the groove on the mounting plate 2 has moved to the position that mates with the slide rail 3, making it convenient for the user to adjust the position of the mounting plate 2.

[0029] Specifically, the moving block 31 has a buffer pad on its side wall facing the mounting block 22.

[0030] As the movable block 31 is pulled by the cable to move toward the mounting block 22, the buffer pad on the movable block 31 plays a buffering role, preventing the movable block 31 from directly hitting the mounting block 22 during the movement, and reducing the damage to the electric gear 23 and magnet 32 ​​during the use of the device.

[0031] Specifically, a marking strip is provided on the side wall of the mounting plate 2 at the position corresponding to the mounting cylinder 21.

[0032] The marking strip on the mounting plate 2 is used to mark the rotor 4 set on the side wall groove of the mounting plate 2, so that the user can move the mounting cylinder 21 with the rotor 4 of the appropriate size to the position that matches the slide rail 3, and make it easy for the user to quickly pick up the required rotor 4.

[0033] Specifically, the side wall of the movable rod 12 is provided with a groove, and the side wall of the groove on the main body 1 where the movable rod 12 is installed is provided with a protrusion that cooperates with the side wall groove of the movable rod 12.

[0034] The fit between the groove on the side wall of the movable rod 12 and the protrusion on the side wall of the slot on the main body 1 where the movable rod 12 is installed serves as a limit, ensuring that the main body 1 will not rotate during the movement along the movable rod 12, thus guaranteeing the stability of the main body 1 during the use of the device.

[0035] The working principle and usage process of this utility model are as follows: The threaded pressure block 13 is rotated, and under the action of the thread, it disengages from the moving rod 12. The fixing of the threaded pressure block 13 to the mounting plate 2 is released. The mounting plate 2 is rotated until the mounting block 22, on which the suitable rotor 4 is mounted, moves to a position that mates with the slide rail 3. The threaded pressure block 13 is rotated in the opposite direction, and under the action of the thread, it presses against the moving rod 12, fixing the rotated mounting plate 2. The two electric winding drums 33 are controlled to wind and release the cable respectively. The moving block 31 moves to a position where it contacts the mounting block 22 under the drive of the cable. The mounting block 22 is fixed to the moving block 31 by the magnet 32 ​​under the action of the magnet. The electric winding drums 33 are controlled to rotate in the opposite direction, and the moving block 31 moves with the cable... The mounting block 22 is moved to the position where the rotor 4 and the bottom insertion port of the main body 1 are engaged. The electric gear 23 is activated, and the toothed ring threaded cylinder 24 begins to rotate under the action of the toothed ring and the electric gear 23. The mounting cylinder 21 moves the rotor 4 under the action of the thread, and the rotor 4 enters the bottom insertion port of the main body 1. The rotor 4 is installed on the main body 1. The threaded pressure block 13 is released from fixing the main body 1. The container containing the liquid to be tested is placed under the main body 1, and the main body 1 is pressed down. The rotor 4 enters the liquid under the action of the main body 1. The main body 1 is fixed by the threaded pressure block 13. The viscosity of the liquid is tested by the main body 1 and the rotor 4. After the test is completed, the threaded pressure block 13 is released from fixing the main body 1. The main body 1 moves back to its original position with the rotor 4 under the action of the spring telescopic rod 11.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rotational viscometer, comprising a body (1) and a rotor (4), wherein the body (1) is slidably mounted on a moving rod (12), and a threaded pressure block (13) cooperating with the moving rod (12) is threadedly mounted on the body (1), characterized in that: It also includes a mounting plate (2) and a slide rail (3). The mounting plate (2) is slidably mounted on the moving rod (12). The threaded pressure block (13) is threadedly mounted on the mounting plate (2). Multiple mounting blocks (22) are slidably mounted on the mounting plate (2). A toothed ring threaded cylinder (24) is rotatably mounted on the mounting block (22). An mounting cylinder (21) is threadedly mounted on the toothed ring threaded cylinder (24). The mounting cylinder (21) is slidably mounted on the side wall protrusion of the mounting block (22). 21) The rotor (4) is rotatably mounted on the main body (1). The bottom of the main body (1) is provided with the slide rail (3) that cooperates with the mounting block (22). A moving block (31) is slidably mounted on the slide rail (3). The slide rail (3) is provided with two electric winding drums (33) that are respectively connected to the two ends of the side wall protrusion of the moving block (31). The moving block (31) is provided with an electric gear (23) that cooperates with the toothed ring part of the toothed ring threaded cylinder (24) and a magnet (32) that cooperates with the mounting block (22).

2. The rotational viscometer according to claim 1, characterized in that: A spring telescopic rod (11) connected to the main body (1) is slidably installed on the annular groove provided on the top surface of the mounting plate (2).

3. A rotational viscometer according to claim 1, characterized in that: The mounting plate (2) has a spring-loaded insert on the side wall of the groove for mounting the mounting block (22), and the side wall of the mounting block (22) has a groove for engaging with the insert.

4. A rotational viscometer according to claim 1, characterized in that: The mounting plate (2) has an indicator strip at the edge of the groove on which the mounting block (22) is mounted, which is designed to cooperate with the slide rail (3).

5. A rotational viscometer according to claim 1, characterized in that: The movable block (31) has a buffer pad on its side wall facing the mounting block (22).

6. A rotational viscometer according to claim 1, characterized in that: The side wall of the mounting plate (2) is provided with a marking strip at the position corresponding to the mounting cylinder (21).

7. A rotational viscometer according to claim 1, characterized in that: The moving rod (12) has a groove on its side wall, and the main body (1) has a protrusion on the side wall of the groove where the moving rod (12) is installed, which cooperates with the groove on the side wall of the moving rod (12).

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