A simple device for regularly stirring carbon black raw oil samples at a uniform speed

Abstract

The present invention discloses a simple device for stirring carbon black raw oil samples at a constant speed at a timed interval, comprising a base, a platform bracket, a sliding shaft, a fixing bracket, a positioning bracket, a height adjustment switch, a driving motor, a mounting block, a stirring assembly, a constant temperature water bath, an oil sample cup, a limiting collar, and a timing speed regulator; the stirring assembly and the mounting block are detachably connected. The present invention has the following advantages and effects: the stirring time and stirring speed are set by the timing speed regulator, and then the driving motor is started to stir the oil sample, thereby avoiding the influence of the uniformity of the carbon black raw oil sample due to the inconsistency of the manual stirring time and stirring frequency, resulting in the inaccuracy of the density data of the carbon black raw oil sample; the setting of the constant temperature water bath ensures the constant stirring temperature, improves the accuracy and stability of the carbon black raw oil detection results, is conducive to guiding the formulation of the carbon black raw oil, and improves the quality of the carbon black product.

Description

Technical Field

[0001] The invention relates to the field of oil sample stirring equipment, in particular to a simple device for stirring a carbon black raw material oil sample at a constant speed and at a fixed time. Background Art

[0002] The density of carbon black feedstock oil samples is a key indicator for testing coking oil products; it represents the density of the oil in its liquid state. Carbon black feedstock oil samples tend to solidify at room temperature and must be slowly heated in a water bath below 60°C, stirring while heating, until they are completely melted. Density testing can only be performed after the visible moisture on the surface has been removed. Uneven manual stirring and inconsistent stirring times during heating can easily lead to data errors during the testing process, wasting manpower and time, and inefficiently.

[0003] The current method for analyzing oil density is to manually collect a sample, pour it into a cup, heat it, and then stir it manually for a uniform density test, according to GB / T 2281-2008, a test method for the density of coking oil products. However, uneven stirring and inconsistent stirring times during heating lead to low accuracy and significant error in repeated test data. Furthermore, the stirring blades in the current stirring device are secured with multiple bolts, making installation and removal cumbersome and hindering regular maintenance. Therefore, it is necessary to optimize the fixing structure of the stirring blades to facilitate their removal and replacement. Summary of the Invention

[0004] The purpose of the present invention is to provide a simple device for regularly stirring carbon black raw oil samples at a uniform speed, so as to solve the problems raised in the background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a simple device for timed and uniform stirring of carbon black raw oil samples, comprising a base as a bearing structure, a longitudinal platform bracket fixedly arranged on the base, two sliding shafts sleeved on the platform bracket, the two sliding shafts being fixed on a fixed frame, the fixed frame following the sliding shafts to perform longitudinal reciprocating movement along the platform bracket, a longitudinal positioning bracket being fixedly arranged on the base, the positioning bracket being located on the right side of the platform bracket, and a height adjustment switch being provided on the positioning bracket that can contact and lock the fixed frame, a driving motor being fixedly arranged on the fixed frame, the output shaft of the driving motor being arranged downward, and a mounting bracket being fixedly provided on the lower end surface of the fixed frame. The output shaft of the driving motor extends downward into the mounting block, and a stirring assembly is provided on the mounting block, the stirring assembly is connected to the output shaft of the driving motor and can perform stirring operation under the drive of the output shaft of the driving motor; a constant temperature water bath is placed on the base, and an oil sample cup for storing oil samples is fixedly provided in the constant temperature water bath, the oil sample cup is located directly below the stirring assembly, and the stirring assembly can extend into the oil sample cup under the drive of the sliding shaft; a fixed limiting collar is sleeved on the platform bracket, the limiting collar is located below the sliding shaft, and the sliding shaft and the limiting collar are abutted to prevent the stirring assembly from touching the bottom of the oil sample cup; a timing speed regulator linked to the driving motor is fixedly provided on the driving motor;

[0006] The stirring assembly and the mounting block are detachably connected.

[0007] A further configuration is that the stirring assembly includes a stirring blade, a longitudinal driving shaft is fixedly provided on the stirring blade, the driving shaft extends into and is limited in the mounting block and is connected to the output shaft of the driving motor.

[0008] The further arrangement is as follows: an upper fixing block and a lower fixing block are fixedly provided inside the mounting block, the upper fixing block is located directly above the lower fixing block, and a longitudinal guide column is fixedly provided between the upper fixing block and the lower fixing block; an upper circular table is sleeved on the upper half of the guide column, the cross-sectional width of the upper end surface of the upper circular table is smaller than its lower end surface, and the upper end surface of the upper circular table is fixed to the upper fixing block; a lower circular table is sleeved on the lower half of the guide column, the cross-sectional width of the upper end surface of the lower circular table is larger than its lower end surface, and the lower circular table and the guide column are slidably connected; a positioning frame is fixedly provided at the lower end of the lower fixing block; an upwardly extending extension arm is fixedly provided on the left and right sides of the upper end of the driving shaft, a travel groove is provided between the two extension arms, and the lower fixing block is located in the travel groove;

[0009] An extension block is fixedly provided at the upper ends of the two extension arms, and the extension block and the extension arm are fixed by bolts; a transverse sliding groove is formed between the two extension blocks and the corresponding extension arms, and a sliding block is slidably provided in the transverse sliding groove, and a first inner spring is compressed between the sliding block and the groove bottom of the transverse sliding groove, and the sliding block is pushed toward the guide column side based on the elastic force of the first inner spring; a first limiting protrusion is fixedly provided at the upper end of the sliding block, and a second limiting protrusion is fixedly provided on the extension block, and the first limiting protrusion and the second limiting protrusion are counteracted to prevent the sliding block from completely falling out of the transverse sliding groove;

[0010] The cross-sectional width of the upper end of the sliding block is smaller than that of the lower end, so that the end surface of the sliding block facing the guide column forms an inclined guide surface;

[0011] When the lower table is separated from the upper table, an adjustable movable cavity is provided between the two. Under the elastic force of the first inner spring, the sliding block can extend into the adjustable movable cavity and contact the lower table. Then, the gravity of the drive shaft keeps the sliding block pressed against the lower table.

[0012] A further configuration is that a longitudinal plug-in arm is fixedly provided on the upper end of the extension block, a linkage block is fixedly provided on the lower end of the output shaft of the drive motor, a slot is provided at the lower end of the linkage block, and a plurality of longitudinal contact protrusions are regularly provided on the inner wall of the slot, a plurality of longitudinal contact recesses are regularly provided on the outer wall of the longitudinal plug-in arm, the longitudinal plug-in arm can be inserted into the slot, and the drive motor drives the drive shaft to rotate through the cooperation of the contact protrusions and the contact recesses.

[0013] A further configuration is that a first movable cavity is formed between the bottom of the travel groove and the positioning frame, and a second movable cavity is formed between the longitudinal plug-in arm and the bottom of the slot.

[0014] A further configuration is that two second inner springs are compressed between the positioning frame and the inclined surface of the lower truncated table, and the lower truncated table is pushed upward based on the elastic force of the second inner springs. The cross-sectional width of the lower end surface of the upper truncated table is consistent with that of the upper end surface of the lower truncated table, and based on the elastic force of the second inner springs, the upper truncated table and the lower truncated table are attached to each other.

[0015] A further configuration is that guide plates extending longitudinally downward are fixedly provided on the inclined surfaces on both sides of the lower circular table, and the guide plates are in contact with the side edges of the positioning frame.

[0016] The further configuration is: a first air duct is opened in the upper truncated cone, and the first air duct is communicated with the adjustable movable cavity; a second air duct is opened in the guide column, and a third air duct is opened in the upper fixed block, and the first air duct, the second air duct and the third air duct are communicated with each other, and an air guide interface communicated with the third air duct is fixedly provided at the upper end of the upper fixed block.

[0017] A further configuration is that the stirring blade includes a horizontally arranged stirring disk, the driving shaft is fixed to the upper end surface of the stirring disk, and a plurality of longitudinal stirring blades are fixedly arranged on the periphery of the stirring disk.

[0018] The present invention has the following beneficial effects:

[0019] 1. In the present invention, after adjusting the height of the fixed frame, the height adjustment switch is fixed, the stirring time and stirring speed of the timing speed regulator are set, and then the driving motor is started to stir the oil sample. This avoids the unevenness of the manual stirring time and stirring frequency, which affects the uniformity of the oil sample product and causes the density data of the carbon black raw oil sample to be untrue. The setting of the constant temperature water bath pot maintains the constant stirring temperature, improves the accuracy and stability of the carbon black raw oil test results, and is conducive to guiding the formulation of the carbon black raw oil and improving the quality of the carbon black product.

[0020] 2. The present invention optimizes the fixing structure between the stirring blade and the output shaft of the drive motor to facilitate the subsequent removal and replacement of the stirring blade. The upper and lower fixing blocks play a fixing role, the upper circular table is fixed on the upper fixing block, and the lower circular table can slide longitudinally along the guide column. When the second end of the driving member is lowered, the second end of the driving member is rotated to the left of the driving member, and the second end of the driving member is rotated to the right of the driving member. As a result, the lower end surface of the sliding block will remain in a state of being in contact with the upper end surface of the lower circular platform, thereby preventing the driving shaft from falling out downward, and achieving good stability.

[0021] When the drive shaft needs to be disassembled, push the drive shaft upward, the two extension arms on the drive shaft can move upward, the inclined guide surface of the sliding block will contact the lower end surface of the upper table and be compressed, and then move upward to contact the inclined surface of the upper table; at this time, the lower table will move upward under the elastic force of the second inner spring until it is in contact with the upper table; then, pull down the drive shaft, and the sliding block can smoothly transition and slide to the inclined surface of the lower table along the junction of the inclined surfaces of the upper and lower tables; finally, pull down along the guide plate to pull it out, which is very convenient.

[0022] 3. In the present invention, the first limiting protrusion and the second limiting protrusion can prevent the sliding block from completely falling out of the horizontal sliding groove by counteracting each other; the inclined guide surface on the sliding block can improve the smoothness of the fit; the second inner spring pushes up the lower circular table to achieve a reset effect.

[0023] 4. In the present invention, the arrangement of the first movable cavity and the second movable cavity provides space for the movement of the drive shaft.

[0024] 5. In the present invention, the setting of the guide plate can serve as a limiting sliding block, so that the drive shaft can be smoothly pulled out downward.

[0025] 6. In the present invention, the arrangement of the first air channel, the second air channel, the third air channel and the air interface can facilitate gas injection to effectively separate the upper and lower frustums. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of an embodiment;

[0027] Figure 2 Schematic diagram of the structure of the stirring assembly in the embodiment;

[0028] Figure 3 for Figure 1 Enlarged view of part A in the middle;

[0029] Figure 4 for Figure 3 Enlarged view of middle part B;

[0030] Figure 5 for Figure 4 Enlarged view of part C in the middle.

[0031] In the figure: 11, base; 12, platform bracket; 13, sliding shaft; 14, fixed frame; 15, positioning bracket; 16, height adjustment switch; 17, drive motor; 18, mounting block; 19, constant temperature water bath; 20, oil sample cup; 21, limit collar; 22, timer speed regulator; 31, drive shaft; 32, stirring plate; 33, stirring blade; 41, upper fixing block; 42, lower fixing block; 43, guide column; 44, upper round table; 45, lower round table; 46, positioning frame; 47, adjustable movable Cavity; 51, extension block; 52, bolt; 53, transverse sliding groove; 54, sliding block; 541, inclined guide surface; 55, first inner spring; 561, first limiting protrusion; 562, second limiting protrusion; 61, extension arm; 62, first movable cavity; 71, longitudinal plug-in arm; 72, linkage block; 73, slot; 74, second movable cavity; 81, second inner spring; 82, guide plate; 91, first air duct; 92, second air duct; 93, third air duct; 94, air guide interface. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] As attached Figures 1 to 5 As shown;

[0034] The present embodiment discloses a simple device for stirring carbon black raw oil sample at a constant speed at a time, comprising a base 11 as a bearing structure, a longitudinal platform bracket 12 fixedly provided on the base 11, two sliding shafts 13 sleeved on the platform bracket 12, the two sliding shafts 13 fixed on a fixed frame 14, the fixed frame 14 follows the sliding shafts 13 to perform longitudinal reciprocating movement along the platform bracket 12, a longitudinal positioning bracket 15 fixedly provided on the base 11, the positioning bracket 15 is located on the right side of the platform bracket 12, and the positioning bracket 15 is provided with a height adjustment switch 16 that can contact and lock the fixed frame 14, a driving motor 17 fixedly provided on the fixed frame 14, the output shaft of the driving motor 17 is arranged downward, and a mounting block 18 is fixedly provided on the lower end surface of the fixed frame 14, the driving motor 17 is fixedly provided with a mounting block 18, and the driving motor 17 is fixedly provided with a mounting block 18. The output shaft of the motor 17 extends downward into the mounting block 18, and a stirring assembly is provided on the mounting block 18. The stirring assembly is connected to the output shaft of the drive motor 17 and can perform stirring operations under the drive shaft of the drive motor 17. A constant temperature water bath 19 is placed on the base 11, and an oil sample cup 20 for storing oil samples is fixedly provided in the constant temperature water bath 19. The oil sample cup 20 is located directly below the stirring assembly. The stirring assembly can extend into the oil sample cup 20 under the drive shaft 13. A fixed limiting collar 21 is sleeved on the platform bracket 12. The limiting collar 21 is located below the sliding shaft 13. The sliding shaft 13 and the limiting collar 21 are opposed to prevent the stirring assembly from touching the bottom of the oil sample cup 20. A timing speed regulator 22 linked to the driving motor 17 is fixedly provided.

[0035] The stirring assembly and the mounting block 18 are detachably connected.

[0036] The stirring assembly includes a stirring blade, on which a longitudinal drive shaft 31 is fixed. The drive shaft 31 extends into and is limited in the mounting block 18 and is connected to the output shaft of the drive motor 17 .

[0037] Among them, an upper fixing block 41 and a lower fixing block 42 are fixedly provided inside the mounting block 18, the upper fixing block 41 is located directly above the lower fixing block 42, and a longitudinal guide column 43 is fixedly provided between the upper fixing block 41 and the lower fixing block 42; an upper circular table 44 is sleeved on the upper half of the guide column 43, the cross-sectional width of the upper end face of the upper circular table 44 is smaller than its lower end face, and the upper end face of the upper circular table 44 is fixed to the upper fixing block 41; a lower circular table 45 is sleeved on the lower half of the guide column 43, the cross-sectional width of the upper end face of the lower circular table 45 is larger than its lower end face, and the lower circular table 45 and the guide column 43 are slidably connected; a positioning frame 46 is fixedly provided at the lower end of the lower fixing block 42; upwardly extending extension arms 61 are fixedly provided on the left and right sides of the upper end of the driving shaft 31, a travel groove is provided between the two extension arms 61, and the lower fixing block 42 is located in the travel groove;

[0038] An extension block 51 is fixedly provided at the upper end of each of the two extension arms 61, and the extension block 51 and the extension arm 61 are fixed by a bolt 52; a transverse sliding groove 53 is formed between each of the two extension blocks 51 and the corresponding extension arm 61, and a sliding block 54 is slidably provided in the transverse sliding groove 53, and a first inner spring 55 is compressed between the sliding block 54 and the groove bottom of the transverse sliding groove 53. Based on the elastic force of the first inner spring 55, the sliding block 54 is pushed to move toward the guide column 43 side; a first limiting protrusion 561 is fixedly provided at the upper end of the sliding block 54, and a second limiting protrusion 562 is fixedly provided on the extension block 51. The first limiting protrusion 561 and the second limiting protrusion 562 are abutted against each other to prevent the sliding block 54 from completely falling out of the transverse sliding groove 53;

[0039] The cross-sectional width of the upper end of the sliding block 54 is smaller than that of the lower end thereof, so that the end surface of the sliding block 54 facing the guide post 43 is formed with an inclined guide surface 541;

[0040] When the lower table 45 is separated from the upper table 44, there is an adjustable movable cavity 47 between the two. Under the elastic force of the first inner spring 55, the sliding block 54 can extend into the adjustable movable cavity 47 and contact the lower table 45. Based on the gravity of the drive shaft 31, the sliding block 54 remains pressed on the lower table 45.

[0041] Among them, a longitudinal plug-in arm 71 is fixedly provided at the upper end of the extension block 51, and a linkage block 72 is fixedly provided at the lower end of the output shaft of the drive motor 17. A slot 73 is opened at the lower end of the linkage block 72, and a plurality of longitudinal contact protrusions are regularly provided on the inner wall of the slot 73. A plurality of longitudinal contact recesses are regularly provided on the outer wall of the longitudinal plug-in arm 71. The longitudinal plug-in arm 71 can be inserted into the slot 73, and the drive motor 17 drives the drive shaft 31 to rotate through the cooperation of the contact protrusions and the contact recesses.

[0042] A first movable cavity 62 is formed between the bottom of the travel groove and the positioning frame 46 , and a second movable cavity 74 is formed between the longitudinal plug-in arm 71 and the bottom of the slot 73 .

[0043] Among them, two second inner springs 81 are compressed and arranged between the positioning frame 46 and the inclined surface of the lower circular platform 45. Based on the elastic force of the second inner spring 81, the lower circular platform 45 is pushed upward. The cross-sectional width of the lower end surface of the upper circular platform 44 is consistent with that of the upper end surface of the lower circular platform 45, and based on the elastic force of the second inner spring 81, the upper circular platform 44 and the lower circular platform 45 are attached to each other.

[0044] Wherein, guide plates 82 extending longitudinally downward are fixedly provided on the inclined surfaces on both sides of the lower circular platform 45 , and the guide plates 82 are in contact with the side edges of the positioning frame 46 .

[0045] Among them, a first air duct 91 is opened in the upper truncated plate 44, and the first air duct 91 is communicated with the adjustable movable chamber 47; a second air duct 92 is opened in the guide column 43, and a third air duct 93 is opened in the upper fixed block 41. The first air duct 91, the second air duct 92 and the third air duct 93 are communicated with each other, and an air guide interface 94 communicating with the third air duct 93 is fixedly provided at the upper end of the upper fixed block 41.

[0046] The stirring blade includes a horizontally arranged stirring disc 32 , a driving shaft 31 is fixed to the upper end surface of the stirring disc 32 , and a plurality of longitudinal stirring blades 33 are fixedly arranged on the outer periphery of the stirring disc 32 .

[0047] The working principle of this embodiment is:

[0048] In this embodiment, after adjusting the height of the fixing frame 14, the fixing frame 14 is fixed by the height adjustment switch 16, the stirring time and stirring speed of the timing speed regulator 22 are set, and then the driving motor 17 is started to start stirring the oil sample. This avoids the influence of the uniformity of the oil sample product and the precision of the density data of the oil sample product due to the inconsistency of the manual stirring time and stirring frequency; at the same time, the accuracy and stability of the test results are improved; the provision of the constant temperature water bath 19 maintains the constant stirring temperature.

[0049] This embodiment optimizes the fixing structure between the stirring blade and the output shaft of the driving motor 17 to facilitate the subsequent disassembly and replacement of the stirring blade.

[0050] When the drive shaft 31 is installed, the upper end surface of the lower table 45 and the lower end surface of the upper table 44 are kept in contact with each other due to the elastic force of the second inner spring 81; the drive shaft 31 is pushed upward, and the two extension arms 61 on the drive shaft 31 can move upward, and the inclined guide surface 541 of the sliding block 54 will first contact the inclined surface of the lower table 45, and then move up along the inclined surface of the lower table 45, and then the sliding block 54 can smoothly transition and slide to the inclined surface of the upper table 44 along the junction of the inclined surfaces of the upper table 44 and the lower table 45; then, the air guide interface 94 is passed to the first Gas is injected into the three air guide channels 93, and then enters the adjustable movable chamber 47 after passing through the second air guide channel 92 and the first air guide channel 91. Then the gas will impact the lower circular table 45 and separate the upper circular table 44 and the lower circular table 45. At this time, the drive shaft 31 is pulled down, and the end of the sliding block 54 can partially extend into the adjustable movable chamber 47 between the upper circular table 44 and the lower circular table 45. Based on the elastic force of the first inner spring 55 and the gravity of the drive shaft 31 itself, the lower circular table 45 is pressed downward until the first limiting protrusion 561 and the second limiting protrusion 562 are against each other. As a result, the lower end surface of the sliding block 54 will remain against the upper end surface of the lower circular table 45, as shown in the attached figure. Figure 4 As shown; thereby preventing the drive shaft 31 from falling out downward, and providing good stability.

[0051] When the drive shaft 31 needs to be disassembled, push the drive shaft 31 upward, the two extension arms 61 on the drive shaft 31 can move upward, and the inclined guide surface 541 of the sliding block 54 will contact the lower end surface of the upper table 44 and be compressed, and then move upward to contact the inclined surface of the upper table 44; at this time, the lower table 45 will move upward under the elastic force of the second inner spring 81 to be in contact with the upper table 44; then, pull down the drive shaft 31, and the sliding block 54 can smoothly transition and slide to the inclined surface of the lower table 45 along the junction of the inclined surfaces of the upper table 44 and the lower table 45; finally, pull down along the guide plate 82 to pull it out, which is very convenient.

[0052] The present invention uses a timer speed regulator to set the stirring time and stirring speed, then activates the drive motor to begin stirring the oil sample. This avoids the impact of inconsistent manual stirring time and stirring frequency on the uniformity of the carbon black feedstock oil sample and the resulting inaccurate density data. The provision of a constant temperature water bath maintains a constant stirring temperature, improving the accuracy and stability of carbon black feedstock oil test results, facilitating the formulation of carbon black feedstock oil and enhancing the quality of carbon black products. Furthermore, the fixing structure between the stirring blade and the output shaft of the drive motor is optimized to facilitate subsequent removal and replacement of the stirring blade.

[0053] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A simple device for stirring carbon black raw oil sample at a constant speed at a fixed time, characterized by: The invention comprises a base (11) as a bearing structure, a longitudinal platform bracket (12) is fixedly provided on the base (11), two sliding shafts (13) are sleeved on the platform bracket (12), the two sliding shafts (13) are fixed on a fixed frame (14), the fixed frame (14) follows the sliding shafts (13) to perform longitudinal reciprocating movement along the platform bracket (12), a longitudinal positioning bracket (15) is also fixedly provided on the base (11), the positioning bracket (15) is located on the right side of the platform bracket (12), and the positioning bracket (15) is provided with a height adjustment switch (16) that can contact with the fixing frame (14) and lock the fixing frame (14), a driving motor (17) is fixedly provided on the fixing frame (14), the output shaft of the driving motor (17) is arranged downward, a mounting block (18) is fixedly provided on the lower end surface of the fixing frame (14), and the output shaft of the driving motor (17) is arranged downward. The base (11) extends downward into the mounting block (18), and a stirring assembly is provided on the mounting block (18), and the stirring assembly is connected to the output shaft of the driving motor (17) and can perform stirring operations under the drive of the output shaft of the driving motor (17); a constant temperature water bath (19) is placed on the base (11), and an oil sample cup (20) for storing oil samples is fixedly provided in the constant temperature water bath (19), and the oil sample cup (20) is located directly below the stirring assembly. The stirring assembly can be extended into the oil sample cup (20) under the drive of the sliding shaft (13); a fixed limiting collar (21) is sleeved on the platform bracket (12), and the limiting collar (21) is located below the sliding shaft (13). The sliding shaft (13) and the limiting collar (21) are abutted against each other to prevent the stirring assembly from touching the bottom of the oil sample cup (20); a timing speed regulator (22) linked to the driving motor (17) is fixedly provided on the driving motor (17); The stirring assembly and the mounting block (18) are detachably connected; An upper fixed block (41) and a lower fixed block (42) are fixedly arranged inside the mounting block (18), the upper fixed block (41) is located directly above the lower fixed block (42), and a longitudinal guide column (43) is fixedly arranged between the upper fixed block (41) and the lower fixed block (42); an upper truncated cone (44) is sleeved on the upper half of the guide column (43), the cross-sectional width of the upper end face of the upper truncated cone (44) is smaller than that of the lower end face thereof, and the upper end face of the upper truncated cone (44) is fixed to the upper fixed block (41); a lower truncated cone (45) is sleeved on the lower half of the guide column (43), the cross-sectional width of the upper end face of the lower truncated cone (45) is larger than that of the lower end face thereof, and the lower truncated cone (45) and the guide column (43) are in sliding connection; When the lower truncated platform (45) and the upper truncated platform (44) are separated, an adjustable movable cavity (47) is provided between the two. The stirring assembly includes a stirring blade, and a longitudinal driving shaft (31) is fixedly provided on the stirring blade. The driving shaft (31) extends into and is limited in the mounting block (18) and is connected to the output shaft of the driving motor (17); A positioning frame (46) is fixedly provided at the lower end of the lower fixed block (42); upwardly extending extension arms (61) are fixedly provided on both the left and right sides of the upper end of the driving shaft (31); a travel groove is provided between the two extension arms (61), and the lower fixed block (42) is located in the travel groove; An extension block (51) is fixedly provided at the upper end of the two extension arms (61), and the extension block (51) and the extension arm (61) are fixed by a bolt (52); a transverse sliding groove (53) is formed between the two extension blocks (51) and the corresponding extension arm (61), a sliding block (54) is slidably provided in the transverse sliding groove (53), and a first inner elastic member is compressed between the sliding block (54) and the bottom of the transverse sliding groove (53). The spring (55) pushes the sliding block (54) toward the guide column (43) based on the elastic force of the first inner spring (55); a first limiting protrusion (561) is fixedly provided on the upper end of the sliding block (54), and a second limiting protrusion (562) is fixedly provided on the extension block (51), and the first limiting protrusion (561) and the second limiting protrusion (562) are abutted against each other to prevent the sliding block (54) from completely falling out of the transverse sliding groove (53); The cross-sectional width of the upper end of the sliding block (54) is smaller than that of the lower end thereof, so that the end surface of the sliding block (54) facing the guide column (43) is formed with an inclined guide surface (541); The sliding block (54) can extend into the adjustable movable cavity (47) and contact the lower truncated table (45) under the elastic force of the first inner spring (55), and then the sliding block (54) is kept pressed against the lower truncated table (45) based on the gravity of the drive shaft (31); The upper end of the extension block (51) is fixedly provided with a longitudinal plug arm (71), the lower end of the output shaft of the drive motor (17) is fixedly provided with a linkage block (72), the lower end of the linkage block (72) is provided with a slot (73), and a plurality of longitudinal contact protrusions are regularly provided on the inner wall of the slot (73), and a plurality of longitudinal contact recesses are regularly provided on the outer wall of the longitudinal plug arm (71), and the longitudinal plug arm (71) can be inserted into the slot (73), and the drive motor (17) drives the drive shaft (31) to rotate through the cooperation of the contact protrusions and the contact recesses; A first movable cavity (62) is formed between the bottom of the travel groove and the positioning frame (46), and a second movable cavity (74) is formed between the longitudinal plug-in arm (71) and the bottom of the slot (73); Two second inner springs (81) are compressed between the positioning frame (46) and the inclined surface of the lower circular table (45). Based on the elastic force of the second inner springs (81), the lower circular table (45) is pushed upward. The cross-sectional width of the lower end surface of the upper circular table (44) is consistent with that of the upper end surface of the lower circular table (45). Based on the elastic force of the second inner springs (81), the upper circular table (44) and the lower circular table (45) are made to stick together. A first air guide channel (91) is provided in the upper truncated plate (44), and the first air guide channel (91) is communicated with the adjustable movable chamber (47); a second air guide channel (92) is provided in the guide column (43), and a third air guide channel (93) is provided in the upper fixed block (41); the first air guide channel (91), the second air guide channel (92) and the third air guide channel (93) are communicated with each other, and an air guide interface (94) is fixedly provided at the upper end of the upper fixed block (41) and is communicated with the third air guide channel (93).

2. The simple device for stirring carbon black raw oil sample at a constant speed according to claim 1, characterized in that: Guide plates (82) extending longitudinally downward are fixedly provided on the inclined surfaces on both sides of the lower circular table (45), and the guide plates (82) are in contact with the side edges of the positioning frame (46).

3. The simple device for stirring carbon black raw oil sample at a constant speed according to claim 1, characterized in that: The stirring blade comprises a horizontally arranged stirring disk (32), the driving shaft (31) is fixed on the upper end surface of the stirring disk (32), and a plurality of longitudinal stirring blades (33) are fixedly arranged on the outer periphery of the stirring disk (32).

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