Small torque rheometer suitable for desktop experiment

Abstract

The utility model provides a small-sized torque rheometer suitable for a desktop experiment, which comprises a rheometer body, a rotating assembly is arranged at the top of the rheometer body, a stirring assembly II is fixed at the bottom of the rotating assembly, the stirring assembly II comprises an annular stirring plate and a plurality of stirring pieces which are annularly arranged, and the stirring pieces are arranged on the annular stirring plate. The plurality of stirring pieces are rotationally arranged on the inner side wall of the annular stirring plate, each stirring piece comprises a rotating shaft and a stirring blade, the two ends of the rotating shaft are rotationally arranged on the inner side wall of the annular stirring plate, and the stirring blades are fixed to the surface of the rotating shaft; straight holes I and straight holes II for dispersing and mixing fluid are formed in the surfaces of the plurality of stirring blades; according to the small torque rheometer suitable for the desktop experiment, the disturbance and mixing effects of the stirring blades on fluid are enhanced, the stirring efficiency is further improved, and the small torque rheometer has the advantages of being good in using effect, high in adaptability and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to rheometer equipment technical field especially relates to a small torque rheometer suitable for desktop experiment. BACKGROUND

[0002] Torque rheometer is a kind of experimental instrument specially used for researching the processing rheological property of high polymer material, it measures the torque and temperature variation characteristics embodied by high polymer material under the kneading effect generated by the opposite rotation of a pair of rotors, to explore the processing rheological property of high polymer material.

[0003] Small torque rheometer for desktop experiment usually has smaller volume and weight, is convenient for operating and moving on laboratory desktop, and this miniaturization design makes torque rheometer more flexible to adapt to various laboratory environments and facilitates experimental operation and data analysis of scientific researchers;

[0004] The existing small torque rheometer suitable for desktop experiment usually carries out rotation test when using, rotation test is to use continuous rotation to apply strain or stress to obtain constant shear rate, when shear flow reaches stability, the torque generated due to flow deformation is measured, so it is also called steady-state measurement, stirring is carried out during rotation test, that is, local overheating or solidification of high polymer material during test is avoided by stirring, so that the test result is more accurate and reliable;

[0005] But the existing small torque rheometer suitable for desktop experiment adopts simple stirring mode when stirring, including rotary driving part, stirring rod and helical blade, the helical blade is annularly arranged on the surface of stirring rod, and the stirring rod is fixed at the bottom of rotary driving part, when using, rotary driving part drives stirring rod to rotate, and the helical blade stirs high polymer material, but the existing stirring rod often appears uneven stirring phenomenon when stirring high polymer material, when high polymer material is not evenly distributed between rotors, it will lead to inaccurate torque measurement, which causes inconvenience to actual use.

[0006] Therefore, it is necessary to provide a new small torque rheometer suitable for desktop experiment to solve the above technical problems. UTILITY MODEL CONTENT

[0007] To solve the above technical problems, the utility model provides a small torque rheometer suitable for desktop experiment.

[0008] The utility model provides a small torque rheometer suitable for desktop experiment, it includes: rheometer body, the top of rheometer body is equipped with rotating component, the top of rheometer body still is fixed with the placement box, the bottom of rotating component is fixed with stirring assembly no.

[0009] Stirring assembly no. Two includes annular stirring plate and a plurality of annular stirring parts, a plurality of stirring parts are rotationally arranged on the inner side wall of annular stirring plate, a plurality of stirring parts all include shaft and stirring vane, both ends of shaft are rotationally arranged on the inner side wall of annular stirring plate, stirring vane is fixed on the surface of shaft, and a plurality of stirring vane surfaces are all provided with straight hole no.

[0010] A plurality of straight hole no. It is conical hole, and a plurality of straight hole no. It is equidistant on the surface of stirring vane and is opposite in opening direction.

[0011] Preferably, the inner side wall of the rheometer body is fixed with a driving assembly, the driving assembly includes a motor, a gear, a rotating column, a gear and two oppositely distributed racks, the bottom of the motor is fixedly connected with the inner side wall of the rheometer body, one side of the gear is fixedly connected with the rotor of the motor, one end of the rotating column rotates on the inner side wall of the rheometer body, the other end of the rotating column is fixedly connected with one side of the gear, and the surfaces of the two racks are respectively engaged with the surfaces of the gear and the gear.

[0012] Preferably, the top of the rheometer body is provided with two oppositely distributed sliding grooves, the bottom wall of the two sliding grooves is slidably provided with a sliding block, the bottom of the two sliding blocks is respectively fixedly connected with the top of the two racks, the top of the rheometer body is slidably provided with a mounting seat, the bottom of the mounting seat is slidably connected with the top of the rheometer body through the two sliding blocks, and the edge of the two sliding blocks is further fixed with a blocking block for limiting the mounting seat.

[0013] Preferably, the top of the mounting seat is fixed with a mounting cylinder, the bottom wall of the mounting cylinder is fixed with a mounting cylinder and a mounting cylinder, the bottom of the mounting cylinder is fixed with a blocking box, the blocking box is communicated with the inside of the mounting cylinder, the blocking box is located above the placement box, and the annular stirring plate is located in the inside of the blocking box.

[0014] Preferably, the top of the installation cylinder one is fixed with a feeding box, the rotating assembly is fixed at the bottom wall of the feeding box, the rotating assembly comprises a bearing plate one, a motor two, a rotating assembly and a stirring assembly two, the stirring assembly two is fixedly connected with the rotor of the motor two through the rotating assembly, the bearing plate one is fixed at the bottom wall of the feeding box, the motor two is fixed at the top of the bearing plate one, and the rotor of the motor two is fixedly connected with one end of the rotating assembly through the bottom wall of the feeding box, the rotating assembly comprises a gear three, a connecting rod one, a gear four, a connecting rod two, a gear five, a gear six and a connecting rod three, the gear three is in surface engagement with the gear four, the gear five is in surface engagement with the gear six, the gear three is fixedly connected with the rotor of the motor two through the connecting rod one, the gear four and the gear five are connected through the connecting rod two, and the stirring assembly two is fixedly connected with the gear six through the connecting rod three.

[0015] Preferably, the installation cylinder two and the installation cylinder three are further provided with a transmission assembly for transmitting fluid, the transmission assembly comprises a branch pipe, both ends of the branch pipe are fixedly connected with the top of the installation cylinder two and the bottom of the installation cylinder three respectively, and a water pump is further fixed in the middle of the branch pipe, the top of the installation cylinder three is fixed with a connecting pipe, and the other end of the connecting pipe is in communication with the inside of the feeding box.

[0016] Preferably, the top of the installation cylinder three is further provided with a stirring assembly three, the stirring assembly three comprises a motor three and a stirring rod, the motor three is fixed at the top of the installation cylinder three, the rotor of the motor three penetrates through the surface of the installation cylinder three and is fixedly connected with the top of the stirring rod, and the stirring rod is located in the inside of the installation cylinder three.

[0017] Preferably, the bottom of the rheometer body is further fixed with a plurality of relatively distributed rollers, the bottom wall of the installation cylinder two is fixed with a protection cylinder, and the rotating assembly and the stirring assembly two are located in the inside of the protection cylinder.

[0018] Compared with the related art, the small torque rheometer suitable for desktop experiment has the following beneficial effects:

[0019] 1. The straight hole one and the straight hole two are opened on the surface of a plurality of stirring blades, the straight hole one and the straight hole two are conical holes, and the straight hole one and the straight hole two are equidistantly distributed on the surface of the stirring blade and are oppositely opened, different direction conical holes can produce different fluid flow patterns, outward holes help to push fluid outward from the stirring area, and inward holes help to introduce fluid into the stirring area, the design can enhance the disturbance and mixing effect of the stirring blade on the fluid, further improve the stirring efficiency, solve the problems that the existing device often appears uneven stirring phenomenon when stirring high polymer materials, and causes large error to the measurement result and the like;

[0020] 2. The design of the conical hole not only increases the surface area of the stirring blade, but also makes the fluid produce more complex flow patterns when passing through the hole, thereby enhancing the fluid mixing efficiency, helping to reduce the error in the experiment, and improving the precision of the experiment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A small torque rheometer suitable for desktop experiment provided by the present application is shown in the structure schematic diagram of the whole;

[0022] Figure 2 A small torque rheometer suitable for desktop experiment provided by the present application is shown in the structure schematic diagram of the whole;

[0023] Figure 3 The structure schematic diagram of the motor two is shown in the structure schematic diagram of the motor two;

[0024] Figure 4 The structure schematic diagram of the stirring rod is shown in the structure schematic diagram of the stirring rod;

[0025] Figure 5 The structure schematic diagram of the stirring assembly is shown in the structure schematic diagram of the stirring assembly;

[0026] Figure 6 The cross-sectional structure schematic diagram of the stirring assembly two is shown in the cross-sectional structure schematic diagram of the stirring assembly two Figure 1 ;

[0027] Figure 7 The cross-sectional structure schematic diagram of the stirring assembly two is shown in the cross-sectional structure schematic diagram of the stirring assembly two Figure 2 ;

[0028] Figure 8 The cross-sectional structure schematic diagram of the stirring blade is shown in the cross-sectional structure schematic diagram of the stirring blade;

[0029] Figure 9 The cross-sectional structure schematic diagram of the placing box is shown in the cross-sectional structure schematic diagram of the placing box;

[0030] Figure 10 The structure schematic diagram of the driving assembly is shown in the structure schematic diagram of the driving assembly.

[0031] The figure mark: 1, rheometer body; 11, roller; 111, motor one; 112, gear one; 113, rotating column; 114, gear two; 12, sliding groove; 13, sliding block one; 131, blocking block; 14, sliding block two; 141, rack; 2, placing box; 21, partition; 3, mounting seat; 31, mounting cylinder one; 4, mounting cylinder two; 41, bearing plate one; 411, protection cylinder; 42, motor two; 43, gear three; 431, connecting rod one; 44, gear four; 441, connecting rod two; 442, gear five; 443, gear six; 45, connecting rod three; 46, annular stirring plate; 461, rotating shaft; 462, stirring blade; 463, straight hole one; 464, straight hole two; 47, branch pipe; 48, water pump; 5, mounting cylinder three; 51, connecting pipe; 52, motor three; 53, stirring rod; 6, blocking box; 7, feeding box. DETAILED DESCRIPTION

[0032] The utility model will be further explained below in connection with the drawings and embodiments.

[0033] Please refer to Figures 1 to 10 , wherein, Figure 1 It is the structure schematic drawing of whole of small torque rheometer suitable for desktop experiment provided by the utility model; Figure 2 It is the main structure schematic drawing of small torque rheometer suitable for desktop experiment provided by the utility model; Figure 3 It is the structure schematic drawing of motor two; Figure 4 It is the structure schematic drawing of stirring rod; Figure 5 It is the structure schematic drawing of stirring assembly; Figure 6 It is the cross section structure schematic of stirring assembly part Figure 1 ; Figure 7 It is the cross section structure schematic of stirring assembly part Figure 2 ; Figure 8 It is the cross section structure schematic of stirring blade; Figure 9 It is the cross section structure schematic of placing box; Figure 10 It is the structure schematic drawing of driving assembly.

[0034] In the specific implementation process, as Figures 1 to 10 Indicated, including rheometer body 1, the top of rheometer body 1 is equipped with rotating assembly, the top of rheometer body 1 is also fixed with placing box 2, the bottom wall of placing box 2 is fixed with several equidistant distribution partition 21, and the bottom wall of placing box 2 is divided into multiple recesses by partition 21, and each recess can be used for the perfusion of fluid and measurement, and the bottom of rotating assembly is fixed with stirring assembly two, and stirring assembly two is located directly above placing box 2;

[0035] The stirring assembly 2 includes an annular stirring plate 46 and several annularly arranged stirring elements. The stirring elements are rotatably arranged on the inner sidewall of the annular stirring plate 46. Each stirring element includes a rotating shaft 461 and stirring blades 462. The two ends of the rotating shaft 461 are rotatably arranged on the inner sidewall of the annular stirring plate 46. The stirring blades 462 are fixed on the surface of the rotating shaft 461. The surface of each stirring blade 462 is provided with a straight hole 463 and a straight hole 464 for dispersing and mixing fluids.

[0036] Several straight holes 463 and 464 are conical holes, and several straight holes 463 and 464 are equidistantly distributed on the surface of the stirring blade 462 and opened in opposite directions.

[0037] It should be noted that placement box 2 is used to hold the polymer material sample to be tested.

[0038] Stirring component 2: used for stirring polymer material samples and measuring torque. The top of the rheometer body 1 is also equipped with a clamping device, torque sensor, temperature controller, etc., for testing polymer material samples.

[0039] It should be noted that the straight holes 463 and 464 are designed as conical holes. They are equidistantly distributed on the surface of the stirring blade 462 and opened in opposite directions. This not only enhances the stirring effect, but also allows the fluid to be subjected to more uniform shear force when passing through the channels, thereby improving the mixing efficiency and dispersion effect.

[0040] refer to Figure 1 , Figure 2 , Figure 9 as well as Figure 10 As shown, a drive assembly is fixed to the inner wall of the rheometer body 1. The drive assembly includes a motor 111, a gear 112, a rotating column 113, a gear 114, and two opposing racks 141. The bottom of the motor 111 is fixedly connected to the inner wall of the rheometer body 1. One side of the gear 112 is fixedly connected to the rotor of the motor 111. One end of the rotating column 113 rotates on the inner wall of the rheometer body 1, and the other end of the rotating column 113 is fixedly connected to one side of the gear 114. The surfaces of the two racks 141 are... The surfaces mesh with the surfaces of gear 112 and gear 114 respectively. The top of the rheometer body 1 has two oppositely distributed slide grooves 12. The bottom walls of the two slide grooves 12 are slidably connected to sliders 13. The bottoms of the two sliders 13 are fixedly connected to the tops of the two racks 141 respectively. The top of the rheometer body 1 has a mounting base 3. The bottom of the mounting base 3 slides on the top of the rheometer body 1 through the two sliders 13. The edges of the two sliders 13 are also fixed with blocking blocks 131 for limiting the mounting base 3.

[0041] It needs to be explained that the rheometer body 1: for the main part of the device, the inner wall of which is fixed with a drive assembly;

[0042] In the drive assembly: motor one 111: fixed on the inner wall of the rheometer body 1, as the driving power source.

[0043] Gear one 112: one side of which is fixedly connected with the rotor of motor one 111, and the rotation of gear one 112 is driven by the rotation of motor one 111.

[0044] Gear two 114: connected with gear one 112 through rotating column 113, located at different positions, used for meshing and transmission with rack 141.

[0045] Rack 141: two racks 141 are oppositely distributed, the surfaces of which are respectively meshed with the surfaces of gear one 112 and gear two 114, the rotation of gear one 112 and gear two 114 is driven by the rotation of motor one 111, and the linear motion of the two racks 141 is further driven.

[0046] It needs to be explained that the chute 12: is opened at the top of the rheometer body 1, used for installing and sliding the slider one 13;

[0047] Slider one 13: two in number, respectively sliding on the bottom walls of the two chutes 12, and fixedly connected with the top parts of the two racks 141, the sliding of the slider one 13 is driven by the linear motion of the rack 141;

[0048] Stop block 131: fixed at the edge of the two slider one 13, used for limiting the mounting seat 3, preventing the mounting seat 3 from sliding excessively and separating from the slider one 13.

[0049] Reference Figures 1 to 9 As shown, the top of the mounting seat 3 is fixed with mounting cylinder one 31, the bottom wall of mounting cylinder one 31 is fixed with mounting cylinder two 4 and mounting cylinder three 5, the bottom of mounting cylinder two 4 is fixed with blocking box 6, blocking box 6 is communicated with the inside of mounting cylinder two 4, blocking box 6 is located directly above the placing box 2, and the annular stirring plate 46 is located in the inside of the blocking box 6;

[0050] The top of the mounting cylinder 31 is fixed with a feeding box 7, a rotating assembly is fixed to the bottom wall of the feeding box 7, the rotating assembly comprises a bearing plate 41, a motor 42, a rotating assembly and a stirring assembly 2, the stirring assembly 2 is fixedly connected with the rotor of the motor 42 through the rotating assembly, the bearing plate 41 is fixed to the bottom wall of the feeding box 7, the motor 42 is fixed to the top of the bearing plate 41, and the rotor of the motor 42 penetrates through the bottom wall of the feeding box 7 and is fixedly connected with one end of the rotating assembly, the rotating assembly comprises a gear 43, a connecting rod 431, a gear 44, a connecting rod 441, a gear 442, a gear 443 and a connecting rod 45, the surfaces of the gear 43 and the gear 44 are engaged, the surfaces of the gear 442 and the gear 443 are engaged, the gear 43 is fixedly connected with the rotor of the motor 42 through the connecting rod 431, the gear 44 and the gear 442 are connected through the connecting rod 441, and the stirring assembly 2 is fixedly connected with the gear 443 through the connecting rod 45.

[0051] It should be noted that the feeding box 7 is fixed to the top of the mounting cylinder 31 and has a certain telescopic function, and a lifting assembly for height adjustment is further arranged in the feeding box 7, and the feeding box 7 is used for putting fluid;

[0052] A transmission assembly for transmitting fluid is further arranged between the mounting cylinder 2 and the mounting cylinder 3, the transmission assembly comprises a branch pipe 47, both ends of the branch pipe 47 are fixedly connected with the top of the mounting cylinder 2 and the bottom of the mounting cylinder 3 respectively, and a water pump 48 is further fixed to the middle part of the branch pipe 47, and the top of the mounting cylinder 3 is fixed with a connecting pipe 51, the other end of the connecting pipe 51 is communicated with the inside of the feeding box 7.

[0053] It should be noted that the connecting pipe 51 is used for transmitting fluid.

[0054] It should be noted that a small hole is arranged in the bottom of the mounting cylinder 2, so that the fluid can flow out to the inside of the placing box 2.

[0055] It should be noted that the mounting cylinder 2 and the mounting cylinder 3 are respectively fixed to the bottom wall of the mounting cylinder 1 and are used for containing and transmitting fluid.

[0056] The blocking box 6 is fixed to the bottom of the mounting cylinder 2, is communicated with the inside of the mounting cylinder 2 and is located directly above the placing box 2, is used for containing the annular stirring plate 46, and when the feeding box 7 moves downward, the blocking box 6 is buckled with the placing box 2, so that the fluid is prevented from splashing due to too fast stirring speed.

[0057] The top of the mounting cylinder 3 is further provided with a stirring assembly 3, the stirring assembly 3 comprises a motor 52 and a stirring rod 53, the motor 52 is fixed to the top of the mounting cylinder 3, the rotor of the motor 52 penetrates through the surface of the mounting cylinder 3 and is fixedly connected with the top of the stirring rod 53, and the stirring rod 53 is located in the inside of the mounting cylinder 3.

[0058] The bottom of the rheometer body 1 is also fixed with a plurality of relatively distributed rollers 11, the bottom wall of the mounting cylinder two 4 is fixed with a protection cylinder 411, and the rotating assembly and the stirring assembly two are located inside the protection cylinder 411.

[0059] It should be noted that, in the rotating assembly, the motor two 42 is fixed on the top of the bearing plate one 41 and is used for driving the rotation of the stirring assembly two.

[0060] The rotating assembly comprises a gear three 43, a connecting rod one 431, a gear four 44, a connecting rod two 441, a gear five 442, a gear six 443 and a connecting rod three 45, the transmission from the motor two 42 to the stirring assembly two is realized through the meshing of the gears and the connection of the connecting rods.

[0061] It should be noted that, in the transmission assembly, the branch pipe 47 is fixedly connected with the top of the mounting cylinder two 4 and the bottom of the mounting cylinder three 5 at two ends and is used for transmitting the fluid.

[0062] The water pump 48 is fixed on the middle part of the branch pipe 47 and is used for providing power for the fluid transmission.

[0063] The connecting pipe 51 is fixedly connected with the top of the mounting cylinder three 5 at one end and is connected with the inside of the feeding box 7 at the other end, so as to form fluid circulation.

[0064] The working principle of the utility model is as follows: when in use, the motor two 42 and the motor three 52 are driven, the motor three 52 first stirs the fluid to be measured, then drives the water pump 48, under the driving of the water pump 48, the fluid passes through the branch pipe 47 from the bottom of the mounting cylinder three 5 to the top of the mounting cylinder two 4 and is transmitted to the inside of the mounting cylinder two 4, since the inside of the mounting cylinder two 4 is fixed with the protection cylinder 411, the fluid passes through the small holes at the bottom of the mounting cylinder two 4 and flows out, but does not enter the inside of the protection cylinder 411, at this time, the motor two 42 drives the annular stirring plate 46 to stir, a plurality of straight holes one 463 and straight holes two 464 are formed in the surface of the stirring vane 462, the plurality of straight holes one 463 and straight holes two 464 are conical holes, and the plurality of straight holes one 463 and straight holes two 464 are equidistantly distributed on the surface of the stirring vane 462 and are oppositely arranged, the conical holes in different directions can produce different fluid flow modes, the outward holes help to push the fluid from the stirring area outward, and the inward holes help to introduce the fluid from the outside into the stirring area, so that the disturbance and mixing effect of the stirring vane 462 on the fluid are enhanced, and the stirring efficiency is further improved.

[0065] The circuit and the control involved in the utility model are prior art, and too much description is not given here.

[0066] The above are only embodiments of the present application, and do not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A small torque rheometer suitable for desktop experiments, characterized in that, The rheometer body (1) is provided with a rotating component on the top of the rheometer body (1), and a placement box (2) is fixed on the top of the rheometer body (1). A stirring component 2 is fixed at the bottom of the rotating component, and the stirring component 2 is located directly above the placement box (2). The second stirring assembly includes an annular stirring plate (46) and a plurality of annularly arranged stirring components. The plurality of stirring components are rotatably disposed on the inner sidewall of the annular stirring plate (46). The plurality of stirring components include a rotating shaft (461) and stirring blades (462). The two ends of the rotating shaft (461) are rotatably disposed on the inner sidewall of the annular stirring plate (46). The stirring blades (462) are fixed on the surface of the rotating shaft (461). The surface of the plurality of stirring blades (462) is provided with a straight hole one (463) and a straight hole two (464) for dispersing and mixing fluids. The first straight hole (463) and the second straight hole (464) are conical holes, and the first straight hole (463) and the second straight hole (464) are equidistantly distributed on the surface of the stirring blade (462) and opened in opposite directions.

2. The small torque rheometer suitable for desktop experiments according to claim 1, characterized in that, A drive assembly is fixed on the inner wall of the rheometer body (1). The drive assembly includes a motor (111), a gear (112), a rotating column (113), a gear (114), and two racks (141) distributed opposite to each other. The bottom of the motor (111) is fixedly connected to the inner wall of the rheometer body (1). One side of the gear (112) is fixedly connected to the rotor of the motor (111). One end of the rotating column (113) rotates on the inner wall of the rheometer body (1). The other end of the rotating column (113) is fixedly connected to one side of the gear (114). The surfaces of the two racks (141) mesh with the surfaces of the gear (112) and the gear (114), respectively.

3. The small torque rheometer suitable for desktop experiments according to claim 2, characterized in that, The top of the rheometer body (1) has two oppositely distributed grooves (12), and the bottom wall of each of the two grooves (12) is slidably connected to a slider (13). The bottom of each slider (13) is fixedly connected to the top of the two racks (141). The top of the rheometer body (1) has a mounting base (3), and the bottom of the mounting base (3) slides on the top of the rheometer body (1) through the two sliders (13). Furthermore, the edges of the two sliders (13) are fixed with blocking blocks (131) for limiting the mounting base (3).

4. The small torque rheometer suitable for desktop experiments according to claim 3, characterized in that, The top of the mounting base (3) is fixed with a mounting cylinder one (31), the bottom wall of the mounting cylinder one (31) is fixed with a mounting cylinder two (4) and a mounting cylinder three (5), the bottom of the mounting cylinder two (4) is fixed with a blocking box (6), the blocking box (6) is connected to the interior of the mounting cylinder two (4), the blocking box (6) is located directly above the placement box (2), and the annular stirring plate (46) is located inside the blocking box (6).

5. The small torque rheometer suitable for desktop experiments according to claim 4, characterized in that, A feed box (7) is fixed to the top of the mounting cylinder (31). The rotating assembly is fixed to the bottom wall of the feed box (7). The rotating assembly includes a support plate (41), a motor (42), a rotating component, and a stirring component. The stirring component is fixedly connected to the rotor of the motor (42) through the rotating component. The support plate (41) is fixed to the bottom wall of the feed box (7). The motor (42) is fixed to the top of the support plate (41). The rotor of the motor (42) passes through the bottom wall of the feed box (7) and is fixedly connected to one end of the rotating assembly. The rotating assembly includes a gear (43). The system comprises a connecting rod 1 (431), a gear 4 (44), a connecting rod 2 (441), a gear 5 (442), a gear 6 (443), and a connecting rod 3 (45). The surface of the gear 3 (43) meshes with the surface of the gear 4 (44), and the surface of the gear 5 (442) meshes with the surface of the gear 6 (443). The gear 3 (43) is fixedly connected to the rotor of the motor 2 (42) through the connecting rod 1 (431). The gear 4 (44) and the gear 5 (442) are connected through the connecting rod 2 (441). The stirring assembly 2 is fixedly connected to the gear 6 (443) through the connecting rod 3 (45).

6. The small torque rheometer suitable for desktop experiments according to claim 5, characterized in that, A transmission assembly for transmitting fluid is provided between the second (4) and the third (5) mounting cylinders. The transmission assembly includes a branch pipe (47), the two ends of which are fixedly connected to the top of the second (4) and the bottom of the third (5) mounting cylinders, respectively. A water pump (48) is also fixed in the middle of the branch pipe (47). A connecting pipe (51) is fixed in the top of the third (5) mounting cylinders, and the other end of the connecting pipe (51) is connected to the inside of the feed box (7).

7. The small torque rheometer suitable for desktop experiments according to claim 6, characterized in that, The top of the mounting cylinder three (5) is also provided with a stirring assembly three, which includes a motor three (52) and a stirring rod (53). The motor three (52) is fixed to the top of the mounting cylinder three (5), and the rotor of the motor three (52) passes through the surface of the mounting cylinder three (5) and is fixedly connected to the top of the stirring rod (53). The stirring rod (53) is located inside the mounting cylinder three (5).

8. The small torque rheometer suitable for desktop experiments according to claim 7, characterized in that, The bottom of the rheometer body (1) is also fixed with several relatively distributed rollers (11), and the bottom wall of the mounting cylinder (4) is fixed with a protective cylinder (411). The rotating component and the stirring component are both located inside the protective cylinder (411).

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