A wall scraping module for an emulsification kettle

Abstract

The present application relates to a kind of emulsification kettle wall scraping module, comprising: shell, shell includes upper wall, lower wall side wall, upper wall, lower wall and side wall are enclosed installation space, the upper wall and lower wall of shell are provided with through hole in opposite position;Cylindrical rotating wall, cylindrical rotating wall is located in installation space, its inner wall is provided with multiple meshing teeth along the circumference;Rotary wall bearing, cylindrical rotating wall is rotatably installed in the side wall of shell;Center transmission mechanism, including center shaft and the first driving gear fixed with center shaft;First eccentric transmission mechanism, including the first eccentric shaft parallel with center shaft and the first driven gear fixed to first eccentric shaft, first driven gear can be driven by first driving gear and rotate, the meshing teeth of first driven gear and the meshing teeth of cylindrical rotating wall are engaged.The emulsification kettle wall scraping module of the present application can overcome the shortcomings that the existing wall scraping mechanism cannot be provided with filling port and temperature measuring port and cannot be applied to high-speed stirring experiment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of emulsification experiments, in particular to a wall scraping module for an emulsification kettle. BACKGROUND

[0002] When researchers use a small-scale emulsification kettle to conduct emulsification experiments, high-speed stirring is required to change the material from "oil" to "water". During the "oil-to-water" process, the material is in a paste form and has little flowability, and a large amount of material adheres to the emulsification kettle wall, resulting in unevenness of the entire raw material system, which seriously affects the quality of the small-scale experiment. To solve this problem, effective wall scraping is required at a very high stirring speed in a small operating space. At the same time, since the diameter of the small-scale emulsification kettle is generally 10-20 cm, the space is limited, and it is difficult to use an independent motor to drive the wall scraping work. Therefore, the existing small-scale emulsification equipment almost has no multiple motor configuration and no automatic wall scraping device.

[0003] The patent document with publication number CN115591508A and the name "floating wall scraping mechanism for laboratory reaction kettle, stirring equipment and method" provides a wall scraping mechanism for a laboratory reaction kettle. The bearing flange rotates to drive the bottom wall scraping paddle and the side wall scraping paddle to rotate to achieve wall scraping. In this way, it is impossible to set a feeding port and a temperature measuring port on the rotating bearing flange. The reason is that the feeding port and the temperature measuring port need to be connected to the corresponding pipelines. Therefore, it is impossible to feed through the bearing flange. In addition, in this scheme, the shaft of the bearing flange is driven by a motor, a driving gear and a driven gear. From the output shaft of the motor to the bearing flange, only a small and fixed ratio of speed reduction is performed. When high-speed stirring of the material is required, the output speed of the motor is very high, and the rotating speed of the bearing flange will also increase accordingly. The rotating speed of the bearing flange, the bottom wall scraping paddle and the side wall scraping paddle is too high, which will cause excessive shaking of the equipment and is prone to overload damage and even safety accidents. Therefore, this wall scraping mechanism cannot be applied to high-speed stirring experiments. SUMMARY

[0004] The present application provides a wall scraping module for an emulsification kettle, which can overcome the shortcomings of the existing wall scraping mechanism that cannot set a feeding port and a temperature measuring port and cannot be applied to high-speed stirring experiments.

[0005] The wall scraping module for an emulsification kettle of the present application comprises:

[0006] A shell comprising an upper wall, a lower wall parallel to the upper wall, and a cylindrical side wall between the upper wall and the lower wall, the upper wall, the lower wall and the side wall surrounding a mounting space, the upper wall and the lower wall of the shell being provided with through holes at opposite positions;

[0007] A cylindrical rotating wall located in the mounting space, and its axis coincides with the axis of the side wall of the shell, and the inner wall of the cylindrical rotating wall is provided with a plurality of meshing teeth in the circumferential direction.

[0008] A rotating wall bearing is arranged between the side wall of the shell and the cylindrical rotating wall, and the cylindrical rotating wall is rotatably mounted on the side wall of the shell.

[0009] A central transmission mechanism comprises a central shaft penetrating the shell in the up-down direction and a first driving gear fixed on the central shaft, the central shaft is mounted on the shell through a bearing, and the central shaft is connected with the stirring paddle of the emulsification kettle to drive the stirring paddle to rotate.

[0010] A first eccentric transmission mechanism comprises a first eccentric shaft parallel to the central shaft and a first driven gear fixed on the first eccentric shaft, the first eccentric shaft is mounted on the shell and can rotate relative to the shell, and the emulsification kettle wall scraping module further comprises a first conversion structure for switching the first driven gear between engagement and disengagement with the first driving gear, and the engagement teeth of the first driven gear are engaged with the engagement teeth of the cylindrical rotating wall.

[0011] Preferably, the inner wall of the upper wall and the inner wall of the lower wall are both fixed with a first sleeve, the two ends of the first eccentric shaft are both mounted with a single-sided closed bearing, the upper end of the first eccentric shaft and the single-sided closed bearing at the upper end are located in the first sleeve of the upper wall, the lower end of the first eccentric shaft and the single-sided closed bearing at the lower end are located in the first sleeve of the lower wall, a first spring is further arranged in the first sleeve of the lower wall, and the closed end of the single-sided closed bearing at the lower end of the first eccentric shaft is pressed above the first spring; the upper wall of the shell is provided with a first limiting groove, the upper end of the first conversion structure is located outside the shell, the lower end is pressed on the single-sided closed bearing at the upper end of the first eccentric shaft through the upper wall of the shell, the first conversion structure can rotate relative to the shell, the first conversion structure is provided with a first limiting block, the first limiting block can abut against the inner wall of the upper wall of the shell or extend into the first limiting groove, when the first limiting block extends into the first limiting groove, the single-sided closed bearing at the lower end of the first eccentric shaft moves upward under the action of the first spring to drive the first eccentric shaft to the position where the first driven gear is engaged with the first driving gear.

[0012] Preferably, the rotating speed of the first driven gear is 1 / 3 of the rotating speed of the first driving gear.

[0013] As preferred, the center transmission mechanism further comprises a second driving gear fixed with the center shaft, the emulsion kettle wall scraping module further comprises a second eccentric transmission mechanism, the second eccentric transmission mechanism comprises a first reduction shaft and a second eccentric shaft parallel with the center shaft, a first input gear and a first output gear fixed with the first reduction shaft, a second driven gear fixed with the second eccentric shaft, the first input gear is engaged with the second driving gear, the second driven gear is engageable with the first output gear, the inner wall of the upper wall and the inner wall of the lower wall are both fixed with a second sleeve, the second eccentric shaft is both installed with a single-sided closed bearing at the two ends, the upper end of the second eccentric shaft and the single-sided closed bearing at the end are located in the second sleeve of the upper wall, the lower end of the second eccentric shaft and the single-sided closed bearing at the end are located in the second sleeve of the lower wall, the second sleeve of the lower wall is further provided with a second spring, the single-sided closed bearing at the lower end of the second eccentric shaft is pressed above the second spring; the upper wall of the shell is provided with a second limiting groove, the second eccentric transmission mechanism further comprises a second conversion structure, the upper end of the second conversion structure is located outside the shell, the lower end is pressed on the single-sided closed bearing at the upper end of the second eccentric shaft through the upper wall of the shell, the second conversion structure is rotatable relative to the shell, the second conversion structure is provided with a second limiting block, the second limiting block is abuttable with the inner wall of the upper wall of the shell or is extendable into the second limiting groove, when the second limiting block extends into the second limiting groove, the single-sided closed bearing at the lower end of the second eccentric shaft is driven upward by the second spring to drive the second eccentric shaft to move to a position where the second driven gear is engaged with the first output gear.

[0014] As preferred, the rotation speed of the second driven gear is 1 / 9 of the rotation speed of the second driving gear.

[0015] As preferred, the center transmission mechanism further comprises a third driving gear fixed with the center shaft, and the emulsification kettle wall scraping module further comprises a third eccentric transmission mechanism, the third eccentric transmission mechanism comprises a second reduction shaft and a third eccentric shaft parallel with the center shaft, a second input gear and a second output gear fixed with the second reduction shaft, and a third driven gear fixed with the third eccentric shaft, the second reduction shaft and the third eccentric shaft are installed on the shell through bearings, the second input gear is engaged with the third driving gear, the third driven gear is engaged with the second output gear, the inner wall of the upper wall and the inner wall of the lower wall are both fixed with a third sleeve, both ends of the third eccentric shaft are both installed with a single-sided closed bearing, the upper end of the third eccentric shaft and the single-sided closed bearing at the end are located in the third sleeve of the upper wall, the lower end of the third eccentric shaft and the single-sided closed bearing at the end are located in the third sleeve of the lower wall, the third sleeve of the lower wall is further provided with a third spring, and the single-sided closed bearing at the lower end of the third eccentric shaft is pressed above the third spring; the upper wall of the shell is provided with a third limiting groove, the third eccentric transmission mechanism further comprises a third conversion structure, the upper end of the third conversion structure is located outside the shell, the lower end of the third conversion structure is pressed on the single-sided closed bearing at the upper end of the third eccentric shaft through the upper wall of the shell, the third conversion structure is rotatable relative to the shell, the third conversion structure is provided with a third limiting block, the third limiting block is abutted against the inner wall of the upper wall of the shell or extends into the third limiting groove, when the third limiting block extends into the third limiting groove, the single-sided closed bearing at the lower end of the third eccentric shaft is driven upward by the third spring to drive the third eccentric shaft to move to a position where the third driven gear is engaged with the second output gear.

[0016] As preferred, the rotation speed of the second driven gear is 1 / 15 of the rotation speed of the second driving gear.

[0017] As preferred, the emulsification kettle wall scraping module further comprises a sealing connection mechanism, the sealing connection mechanism comprises a first sealing ring fixedly connected with the lower end of the cylindrical rotating wall and coaxial with the cylindrical rotating wall, the first sealing ring forms an annular seal between the lower end of the cylindrical rotating wall and the wall scraping mechanism, the inner wall of the first sealing ring is provided with an annular groove, the sealing connection mechanism further comprises a second sealing ring fixedly connected with the lower wall of the shell and coaxial with the cylindrical rotating wall, the outer side edge of the second sealing ring extends into the groove of the first sealing ring to form a seal between the lower wall of the shell and the first sealing ring and a dynamic seal between the first sealing ring and the second sealing ring.

[0018] As preferred, the sealing connection mechanism further comprises a third sealing ring between the lower end surface of the side wall of the shell and the second sealing ring.

[0019] As preferred, the first sealing ring, the second sealing ring and the third sealing ring are made of tetrafluoroethylene.

[0020] As preferred, the wall scraping module of the emulsification kettle further comprises a wall scraping mechanism fixed with the cylindrical rotating wall and rotating under the driving of the cylindrical rotating wall, the wall scraping mechanism comprising a side wall scraping for scraping the inner wall of the side wall of the emulsification kettle and a bottom wall scraping for scraping the inner wall of the bottom wall of the kettle body of the emulsification kettle.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] 1. The wall scraping module of the emulsification kettle is installed on the kettle body of the emulsification kettle, and the shell is not rotated during stirring of the material and wall scraping, so that operations such as N2 passing, water adding, temperature measuring and sampling can be performed through the through hole provided on the shell. The central transmission mechanism not only can drive stirring, but also can drive the cylindrical rotating wall to rotate through the first eccentric transmission mechanism, so that the wall scraping mechanism is driven to rotate. In a small space, two-stage speed reduction is formed through the first eccentric transmission mechanism and the cylindrical rotating wall, so that even if the stirring speed is increased, the wall scraping mechanism can still maintain a low rotating speed, and the operation is more stable and safe.

[0023] 2. Through the first limiting groove, the first limiting block, the first spring limiting structure and the first spring, two states can be realized: one is a "pressed down" state, in which the first driven gear is away from the first driving gear and the two gears are not engaged, so that only stirring is performed without wall scraping; the other is a "limiting" state, in which the first driven gear is engaged with the first driving gear, so that stirring and wall scraping are simultaneously performed. The user can select the two states according to the needs, and only needs to rotate the first eccentric shaft or rotate and press the first eccentric shaft to realize the switching of the two states.

[0024] 3. Different speed reduction ratios can be realized through the first eccentric transmission mechanism, the second eccentric transmission mechanism and the third eccentric transmission mechanism, and different and applicable speed reduction ratios can be selected under different rotating speeds of the central shaft.

[0025] 4. Through the first sealing ring, the second sealing ring, the third sealing ring and the connection relationship thereof, the sealing connection mechanism not only enables the cylindrical rotating wall to drive the wall scraping mechanism to rotate relative to the shell, but also forms a reliable seal between the cylindrical rotating wall and the shell. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure schematic view of the emulsification kettle wall scraping module in the top view direction according to an embodiment of the present application.

[0027] Figure 2 It is a structure schematic view of the emulsification kettle wall scraping module in the front view direction according to an embodiment of the present application.

[0028] Figure 3 The structure schematic diagram of the wall scraping module of the emulsification kettle and the kettle body of the emulsification kettle after installation for an embodiment of the present application.

[0029] Figure 4 The structure schematic diagram of the first eccentric transmission mechanism of the wall scraping module of the emulsification kettle in the working state for an embodiment of the present application.

[0030] Figure 5 The structure schematic diagram of the second eccentric transmission mechanism of the wall scraping module of the emulsification kettle in the working state for an embodiment of the present application.

[0031] Figure 6 The structure schematic diagram of the third eccentric transmission mechanism of the wall scraping module of the emulsification kettle in the working state for an embodiment of the present application.

[0032] Reference signs

[0033] 1 housing, 11 upper wall, 111 first limiting groove, 112 second limiting groove, 113 third limiting groove, 12 lower wall, 13 side wall, 14 through hole, 15 upper annular connecting lug, 16 first sleeve, 17 second sleeve, 18 third sleeve;

[0034] 2 cylindrical rotating wall, 21 annular folded edge;

[0035] 3 rotating wall bearing;

[0036] 4 wall scraping mechanism, 41 side wall scraping, 42 bottom wall scraping, 43 connecting plate, 44 wiping block;

[0037] 5 center transmission mechanism, 51 center shaft, 52 first driving gear, 53 second driving gear, 54 third driving gear;

[0038] 6 first eccentric transmission mechanism, 61 first eccentric shaft, 62 first conversion structure, 621 first limiting block, 63 first spring, 64 first driven gear;

[0039] 7 second eccentric transmission mechanism, 71 first speed reduction shaft, 72 first input gear, 73 first output gear, 74 second eccentric shaft, 75 second conversion structure, 751 second limiting block, 76 second spring, 77 second driven gear;

[0040] 8 third eccentric transmission mechanism, 81 second speed reduction shaft, 82 second input gear, 83 second output gear, 84 third eccentric shaft, 85 third conversion structure, 851 third limiting block, 86 third spring, 87 third driven gear;

[0041] 9 sealing connection mechanism, 91 first sealing ring, 92 second sealing ring, 93 third sealing ring;

[0042] 10 stirring paddle, 101 vertical rod, 102 disc-shaped part, 103 paddle blade;

[0043] A kettle body, A1 lower annular connecting lug;

[0044] B single-sided seal bearing. DETAILED DESCRIPTION

[0045] The present application provides a kind of emulsification kettle wall scraping module, for scraping the material such as adhering on the inner wall of emulsification kettle kettle body A, such as Figures 1-3 As shown in the emulsification kettle wall scraping module of the embodiment, it includes shell 1, cylindrical rotating wall 2, rotating wall bearing 3, wall scraping mechanism 4, central transmission mechanism 5 and first eccentric transmission mechanism 6, wherein the shell 1 includes upper wall 11, lower wall 12 parallel to the upper wall 11 and cylindrical side wall 13 between the upper wall 11 and lower wall 12, in this embodiment, the cross section of side wall 13 is annular, its inner diameter is the same as the inner diameter of emulsification kettle kettle body A, so the diameter of cylindrical rotating wall 2 is very close to the inner diameter of emulsification kettle kettle body A. The upper wall 11 is directly connected with the side wall 13, and the sealing connection mechanism 9 is arranged between the side wall 13 and the lower wall 12. The specific arrangement of the sealing connection mechanism 9 will be described in detail below. The upper wall 11 and the lower wall 12 of the shell 1 are provided with through holes 14 at opposite positions, in this embodiment, the shell 1 is provided with three through holes 14, and 24# standard interfaces can be arranged at the through holes 14, which are mainly used for N2, water addition, temperature measurement, sampling and other operations.

[0046] The cylindrical rotating wall 2 is located in the mounting space, and its axis coincides with the axis of the side wall 13 of the shell 1, and the inner wall of the cylindrical rotating wall 2 is provided with a plurality of meshing teeth (not shown in the figure) in the circumferential direction. The rotating wall bearing 3 is located between the side wall 13 of the shell 1 and the cylindrical rotating wall 2, and the cylindrical rotating wall 2 is rotatably mounted to the side wall 13 of the shell 1.

[0047] In this embodiment, the wall scraping mechanism 4 includes a side wall scraping 41 for scraping the inner wall of the side wall 13 of the emulsification kettle and a bottom wall scraping 42 which can act on the inner wall of the bottom wall of the kettle body A of the emulsification kettle, and the wall scraping mechanism 4 is fixed relative to the cylindrical rotating wall 2 and rotates under the driving of the cylindrical rotating wall 2 to scrape the entire inner wall of the kettle body A of the emulsification kettle.

[0048] The central transmission mechanism 5 includes a central shaft 51 passing through the shell 1 in the up-down direction and a first driving gear 52 fixed to the central shaft 51, and the central shaft 51 is mounted to the shell 1 through a bearing and can rotate relative to the shell 1. The central shaft 51 is also connected with the stirring paddle 10 of the emulsification kettle to drive the stirring paddle 10 to rotate in the kettle body A of the stirring kettle, so as to stir the material.

[0049] The first eccentric transmission mechanism 6 comprises a first eccentric shaft 61 parallel to the central shaft 51 and a first driven gear 64 fixed to the first eccentric shaft 61, the first eccentric shaft 61 is mounted on the shell 1 through a bearing and can rotate relative to the shell 1, the emulsion kettle wall scraping module further comprises a first conversion structure 62 for switching the first driven gear 64 between engagement and disengagement with the first driving gear 52, the engagement teeth of the first driven gear 64 are engaged with the engagement teeth of the cylindrical rotating wall 2.

[0050] The emulsion kettle wall scraping module of the present application is installed on the kettle body A of the emulsion kettle, when stirring the material and scraping the wall, the shell 1 is not rotating, and the operations such as passing N2, adding water, temperature measurement, sampling, etc. can be performed through the through hole 14 provided on the shell 1. The central transmission mechanism 5 not only can drive the stirring, but also can drive the cylindrical rotating wall 2 to rotate through the first eccentric transmission mechanism 6, thereby driving the wall scraping mechanism 4 to rotate, and two-stage speed reduction is formed through the first eccentric transmission mechanism 6 and the cylindrical rotating wall 2, that is, even if the stirring speed is increased, the wall scraping mechanism 4 can still maintain a relatively low rotating speed, and the structure is simpler, and the operation is more stable and safe.

[0051] As shown in Figure 2 The inner wall of the upper wall 11 and the inner wall of the lower wall are both fixed with a first sleeve 16, the two ends of the first eccentric shaft 61 are both mounted with a single-face closed bearing B, the single-face closed bearing B can move up and down in the sleeve, the upper end of the first eccentric shaft 61 and the single-face closed bearing B at the end are located in the first sleeve 16 of the upper wall 11, the lower end of the first eccentric shaft 61 and the single-face closed bearing B at the end are located in the first sleeve 16 of the lower wall 12, the first sleeve 16 of the lower wall 12 is further provided with a first spring 63, and the closed end of the single-face closed bearing B at the lower end of the first eccentric shaft 61 is pressed above the first spring 63. The lower surface of the upper wall 11 of the shell 1 is provided with a first limiting groove 111 having a downward opening, the upper end of the first conversion structure 62 is located outside the shell 1, and the lower end is pressed on the closed end of the single-face closed bearing B at the upper end of the first eccentric shaft 61 through the upper wall 11 of the shell 1, the first conversion structure 62 can rotate relative to the shell 1, the first conversion structure 62 is provided with a first limiting block 621, the first limiting block 621 can abut against the inner wall of the upper wall 11 of the shell 1 or extend into the first limiting groove 111, when the first limiting block 621 extends into the first limiting groove 112, the single-face closed bearing B at the lower end of the first eccentric shaft 61 moves upward under the action of the first spring 63 to drive the first eccentric shaft 61 to move to the position where the first driven gear 64 is engaged with the first driving gear 52. In this embodiment, the rotating speed of the first driven gear 64 is 1 / 3 of the rotating speed of the first driving gear 52.

[0052] By the first limiting slot 111, the first limiting block 64 and the first spring 63, two states can be achieved: one, the "pressed down" state of the first conversion structure 62, as shown in Figure 2 the first driven gear 64 is away from the first driving gear 52 and they are not engaged, only stirring without scraping the wall; two, the "limited" state, the first driven gear 64 is engaged with the first driving gear 52, stirring while scraping the wall, the user can choose the two states according to the needs, only need to rotate the first eccentric shaft 61 or rotate and press the first eccentric shaft 61 to achieve the switching of the two states.

[0053] As shown in Figure 1 and 2 , the center transmission mechanism 5 further comprises a second driving gear 53 fixed with the center shaft 51, and the emulsion kettle wall scraping module further comprises a second eccentric transmission mechanism 7, the second eccentric transmission mechanism 7 comprises a first reduction shaft 71 and a second eccentric shaft 74 parallel to the center shaft 51, a first input gear 72 and a first output gear 73 fixed with the first reduction shaft 71, and a second driven gear 77 fixed with the second eccentric shaft 74, the first reduction shaft 71 and the second eccentric shaft 74 are installed on the shell 1 through bearings, the first input gear 72 is engaged with the second driving gear 53, and the second driven gear 77 can be engaged with the first output gear 73. The inner wall of the upper wall 11 and the inner wall of the lower wall 12 are both fixed with a second sleeve 17, both ends of the second eccentric shaft 74 are both installed with a single-face closed bearing B, the upper end of the second eccentric shaft 74 and the single-face closed bearing B at the end are located in the second sleeve 17 of the upper wall 11, the lower end of the second eccentric shaft 74 and the single-face closed bearing B at the end are located in the second sleeve 17 of the lower wall 12, the second sleeve 17 of the lower wall 12 is further provided with a second spring 76, and the single-face closed bearing B at the lower end of the second eccentric shaft 74 is pressed above the second spring 76; the upper wall 11 of the shell 1 is provided with a second limiting slot 112, the second eccentric transmission mechanism 7 further comprises a second conversion structure 75, the upper end of the second conversion structure 75 is located outside the shell 1, the lower end penetrates through the upper wall 11 of the shell 1 and is pressed on the single-face closed bearing B at the upper end of the second eccentric shaft 74, the second conversion structure 75 can rotate relative to the shell 1, the second conversion structure 75 is provided with a second limiting block 751, the second limiting block 751 can abut against the inner wall of the upper wall 11 of the shell 1 or extend into the second limiting slot 112, when the second limiting block 751 extends into the second limiting slot 112, the single-face closed bearing B at the lower end of the second eccentric shaft 74 moves upward under the action of the second spring 76 to drive the second eccentric shaft 74 to move to the position where the second driven gear 77 is engaged with the first output gear 73, as shown in Figure 5As shown. In this embodiment, the rotational speed of the second driven gear 77 is 1 / 9 of the rotational speed of the second driving gear 53.

[0054] like Figure 2 As shown, the central transmission mechanism 5 further includes a third driving gear 54 fixed to the central shaft 51, and the emulsifying tank wall scraping module further includes a third eccentric transmission mechanism 8. The third eccentric transmission mechanism 8 includes a second reduction shaft 81 and a third eccentric shaft 84 parallel to the central shaft 51, a second input gear 82 and a second output gear 83 fixed to the second reduction shaft 81, and a third driven gear 87 fixed to the third eccentric shaft 84. The second reduction shaft 81 and the third eccentric shaft 84 are mounted on the housing 1 by bearings. The second input gear 82 meshes with the third driving gear 54, and the third driven gear 87 can mesh with the second output gear 83. The inner walls of the upper wall 11 and the lower wall 12 are both fixed with third sleeves 18. Single-sided sealed bearings B are installed at both ends of the third eccentric shaft 84. The upper end of the third eccentric shaft 84 and the single-sided sealed bearing B at that end are located inside the third sleeve 18 of the upper wall, and the lower end of the third eccentric shaft 84 and the single-sided sealed bearing B at that end are located inside the third sleeve 18 of the lower wall. A third spring 86 is also provided inside the third sleeve 18 of the lower wall 12. The single-sided sealed bearing B at the lower end of the third eccentric shaft 84 presses against the third spring 86. The upper wall 11 of the housing 1 is provided with a third limiting groove 113. The third eccentric transmission mechanism 8 also includes a third conversion structure 85. The upper end of the third eccentric shaft 84 is located outside the housing 1, and the lower end passes through the upper wall 11 of the housing 1 and presses against the single-sided sealed bearing B at the upper end of the third eccentric shaft 84. The third conversion structure 85 can rotate relative to the housing 1. The third conversion structure 85 is provided with a third position block 851. The third position block 851 can abut against the inner wall of the upper wall 11 of the housing 1 or extend into the third limiting groove 113. When the third position block 851 extends into the third limiting groove 113, the single-sided sealed bearing B at the lower end of the third eccentric shaft 84 moves upward under the action of the third spring 86, driving the third eccentric shaft 84 to move to the position where the third driven gear 87 meshes with the second output gear 83. Figure 6 As shown. In this embodiment, the rotational speed of the second driven gear 77 is 1 / 15 of the rotational speed of the second driving gear 53. Different reduction ratios can be achieved through the first eccentric transmission mechanism, the second eccentric transmission mechanism 7, and the third eccentric transmission mechanism 8, respectively. Different applicable reduction ratios can be selected at different rotational speeds of the central shaft 51.

[0055] like Figure 2As shown, the emulsification kettle wall scraping module further comprises a sealing connecting mechanism 9, which comprises a first annular sealing ring 91 fixedly connected with the lower end of the cylindrical rotating wall 2 and coaxial with the cylindrical rotating wall 2. In this embodiment, the lower end of the cylindrical rotating wall 2 is inwardly bent to form an annular bent edge 21, the upper end of the first sealing ring 91 is fixed with the annular bent edge 21 by screws, and the lower end of the first sealing ring 91 is fixed with the wall scraping mechanism 4 by screws. The first sealing ring 91 forms an annular seal between the lower end of the cylindrical rotating wall 2 and the wall scraping mechanism 4. The inner wall of the first sealing ring 91 is provided with an annular groove. The sealing connecting mechanism 9 further comprises a second annular sealing ring 92 fixedly connected with the lower wall 12 of the shell 1 and coaxial with the cylindrical rotating wall 2. In this embodiment, the second sealing ring 92 is fixed with the lower wall 12 of the shell 1 by screws. The outer edge of the second sealing ring 92 extends into the groove of the first sealing ring 91 to form a seal between the lower wall 12 of the shell 1 and the first sealing ring 91, and a dynamic seal is formed between the first sealing ring 91 and the second sealing ring 92. As shown in the figure, the wall scraping mechanism 4 further comprises a third sealing ring 93 located between the lower end surface of the side wall 13 of the shell 1 and the second sealing ring 92. Through the arrangement of the first sealing ring 91, the second sealing ring 92, the third sealing ring 93 and their connecting relationship, the sealing connecting mechanism 9 not only enables the cylindrical rotating wall 2 to rotate relative to the shell 1, but also forms a reliable seal between the cylindrical rotating wall 2 and the shell 1. In this embodiment, the first sealing ring 91, the second sealing ring 92 and the third sealing ring 93 are all made of tetrafluoroethylene, which not only forms a seal, but also reduces the friction between the parts. Figure 2 As shown in the figure, the sealing connecting mechanism 9 further comprises a third sealing ring 93 located between the lower end surface of the side wall 13 of the shell 1 and the second sealing ring 92. Through the arrangement of the first sealing ring 91, the second sealing ring 92, the third sealing ring 93 and their connecting relationship, the sealing connecting mechanism 9 not only enables the cylindrical rotating wall 2 to rotate relative to the shell 1, but also forms a reliable seal between the cylindrical rotating wall 2 and the shell 1. In this embodiment, the first sealing ring 91, the second sealing ring 92 and the third sealing ring 93 are all made of tetrafluoroethylene, which not only forms a seal, but also reduces the friction between the parts.

[0056] As shown in the figure, the wall scraping mechanism 4 further comprises a third sealing ring 93 located between the lower end surface of the side wall 13 of the shell 1 and the second sealing ring 92. Through the arrangement of the first sealing ring 91, the second sealing ring 92, the third sealing ring 93 and their connecting relationship, the sealing connecting mechanism 9 not only enables the cylindrical rotating wall 2 to rotate relative to the shell 1, but also forms a reliable seal between the cylindrical rotating wall 2 and the shell 1. In this embodiment, the first sealing ring 91, the second sealing ring 92 and the third sealing ring 93 are all made of tetrafluoroethylene, which not only forms a seal, but also reduces the friction between the parts. Figure 3 As shown in the figure, the wall scraping mechanism 4 further comprises a third sealing ring 93 located between the lower end surface of the side wall 13 of the shell 1 and the second sealing ring 92. Through the arrangement of the first sealing ring 91, the second sealing ring 92, the third sealing ring 93 and their connecting relationship, the sealing connecting mechanism 9 not only enables the cylindrical rotating wall 2 to rotate relative to the shell 1, but also forms a reliable seal between the cylindrical rotating wall 2 and the shell 1. In this embodiment, the first sealing ring 91, the second sealing ring 92 and the third sealing ring 93 are all made of tetrafluoroethylene, which not only forms a seal, but also reduces the friction between the parts.

[0057] The lower edge of the side wall 13 of the shell 1 has an annular connecting lug that protrudes radially outward. The upper end of the kettle body A of the emulsification kettle is provided with a lower annular connecting lug A1 that protrudes radially outward. When the emulsification kettle wall scraping module and the kettle body A are installed together, the upper annular connecting lug 15 and the lower annular connecting lug A1 are coaxial and opposite in up and down direction, and are fixed together by a clamp.

[0058] As shown in the figure, the wall scraping mechanism 4 further comprises a third sealing ring 93 located between the lower end surface of the side wall 13 of the shell 1 and the second sealing ring 92. Through the arrangement of the first sealing ring 91, the second sealing ring 92, the third sealing ring 93 and their connecting relationship, the sealing connecting mechanism 9 not only enables the cylindrical rotating wall 2 to rotate relative to the shell 1, but also forms a reliable seal between the cylindrical rotating wall 2 and the shell 1. In this embodiment, the first sealing ring 91, the second sealing ring 92 and the third sealing ring 93 are all made of tetrafluoroethylene, which not only forms a seal, but also reduces the friction between the parts. Figure 3As shown, the stirring paddle 10 comprises a vertical rod 101 connected with the central shaft 51, a horizontal rod 102 connected with the vertical rod 101 and perpendicular to the vertical rod 101, and a plurality of paddle blades 103 mounted on the horizontal rod 102 and arranged along the length direction of the horizontal rod 102.

[0059] The operation method for experiment by the emulsification kettle wall scraping module of the present application is as follows:

[0060] (1) Add the base material into the kettle body A of the emulsification kettle.

[0061] (2) Assemble the stirring paddle 10 on the central shaft 51, assemble the wall scraping mechanism 4 on the cylindrical rotating wall 2, and put the plug into the through hole 14; meanwhile, fix the emulsification kettle wall scraping module with the kettle body A of the emulsification kettle by the clamp, and connect the stirring motor through the central shaft 51. The assembly effect is as shown in Figure 2 .

[0062] (3) Check that the first eccentric shaft 61, the second eccentric shaft 74 and the third eccentric shaft 84 are in the "pressed down" state, at which time the central shaft 51 of the module of the present application rotates independently.

[0063] (4) Start the stirring motor, and the central shaft 51 rotates independently, and the stirring paddle 10 stirs the material.

[0064] (5) Stop the motor, and rotate the first eccentric shaft 61, so that the first limiting block 64 enters the first limiting groove 111, i.e. the "limiting" state.

[0065] (6) Start and adjust the motor speed to 300-900 r / min, at which time the stirring paddle 10 and the wall scraping mechanism 4 rotate simultaneously, and the rotation speed of the wall scraping mechanism 4 is 1 / 3 of the rotation speed of the stirring paddle 10.

[0066] (7) After the material is uniformly mixed and the temperature meets the process requirements, stop the motor, press and rotate the first eccentric shaft 61, so that the first limiting block 64 is separated from the first limiting groove 111, and enters the "pressed down" state; rotate the second eccentric shaft 74, so that the second limiting block enters the second limiting groove 112, i.e. the "limiting" state.

[0067] (8) Start and adjust the motor speed to 900-1400 r / min, at which time the stirring paddle 10 and the wall scraping rotate simultaneously, and the rotation speed of the wall scraping is 1 / 9 of the rotation speed of the stirring paddle 10.

[0068] (9) According to the emulsification process, add emulsified water through the through hole 14.

[0069] (10) When the viscosity of the material increases obviously, stop the motor, press and rotate the second eccentric shaft 74, so that it is in the "pressed down" state; at the same time, rotate the third eccentric shaft 84, so that the third limiting block 85187 enters the third limiting groove 113, i.e. the "limiting" state.

[0070] (11) Turn on and adjust the motor speed to 1500-2000r / min, at this time the stirring paddle 10 and the wall scraping rotate simultaneously, and the rotation speed of the wall scraping is 1 / 15 of the rotation speed of the stirring paddle 10.

[0071] (12) According to the emulsification process, add emulsified water through the through hole 14.

[0072] (13) When the viscosity of the material reaches the maximum value, the "phase inversion point" appears, and the material realizes "oil to water".

[0073] (14) Continue to add dilution water through the through hole 14 according to the emulsification process.

[0074] (15) During the water dilution process, the viscosity of the material gradually decreases, and according to the actual situation, the stirring speed and the wall scraping speed are gradually reduced according to the above (5)-(11) steps.

[0075] (16) The emulsion preparation is completed, the motor is turned off, and the motor is connected to the module and the module is connected to the emulsion kettle body A.

[0076] (17) Discharge, save the emulsion sample.

[0077] (18) Remove the stirring paddle 10 and the wall scraping connected to the module and clean them.

[0078] (19) Arrange the remaining experimental equipment, and the experiment is completed.

[0079] The above examples are only exemplary embodiments of the present application and are not used to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications or equivalent replacements made by those skilled in the art to the present application within the spirit and protection scope of the present application also fall within the protection scope of the present application.

Claims

1. An emulsification kettle wall scraping module characterized by, The application relates to a scraped wall emulsification kettle. The scraped wall emulsification kettle comprises a shell, a cylindrical rotating wall, a rotating wall bearing, a central transmission mechanism, a first eccentric transmission mechanism and a scraped wall mechanism. The shell comprises an upper wall, a lower wall parallel to the upper wall and a cylindrical side wall between the upper wall and the lower wall, the upper wall, the lower wall and the side wall form an installation space, and the upper wall and the lower wall of the shell are provided with through holes penetrating the upper wall and the lower wall at opposite positions. The cylindrical rotating wall is located in the installation space and the axis of the cylindrical rotating wall is coincident with the axis of the side wall of the shell, and the inner wall of the cylindrical rotating wall is provided with a plurality of meshing teeth in the circumferential direction. The rotating wall bearing is located between the side wall of the shell and the cylindrical rotating wall, and the cylindrical rotating wall is rotatably installed on the side wall of the shell. The central transmission mechanism comprises a central shaft penetrating the shell in the up-down direction and a first driving gear fixed on the central shaft, the central shaft is installed on the shell through a bearing, and the central shaft is connected with a stirring paddle of the emulsification kettle and can drive the stirring paddle to rotate. The first eccentric transmission mechanism comprises a first eccentric shaft parallel to the central shaft and a first driven gear fixed on the first eccentric shaft, the first eccentric shaft is installed on the shell and can rotate relative to the shell, the emulsification kettle scraped wall module further comprises a first conversion structure for switching the first driven gear between the two states of meshing and separating with the first driving gear, and the meshing teeth of the first driven gear are meshed with the meshing teeth of the cylindrical rotating wall.

2. An emulsification kettle wall scraping module according to claim 1, wherein, The scraped wall mechanism is fixed on the cylindrical rotating wall and rotates under the drive of the cylindrical rotating wall, and the scraped wall mechanism comprises a side wall scraper for scraping the inner wall of the side wall of the emulsification kettle and a bottom wall scraper for scraping the inner wall of the bottom wall of the kettle body of the emulsification kettle.

3. The emulsification kettle wall scraping module of claim 1, wherein, The inner wall of the upper wall and the inner wall of the lower wall are fixed with first sleeves, the two ends of the first eccentric shaft are installed with single-face sealed bearings, the upper end of the first eccentric shaft and the single-face sealed bearing at the upper end are located in the first sleeve of the upper wall, the lower end of the first eccentric shaft and the single-face sealed bearing at the lower end are located in the first sleeve of the lower wall, a first spring is further arranged in the first sleeve of the lower wall, and the sealed end of the single-face sealed bearing at the lower end of the first eccentric shaft is pressed above the first spring. The upper wall of the shell is provided with a first limiting groove, the upper end of the first conversion structure is located outside the shell, the lower end of the first conversion structure penetrates the upper wall of the shell and is pressed on the single-face sealed bearing at the upper end of the first eccentric shaft, the first conversion structure can rotate relative to the shell, the first conversion structure is provided with a first limiting block, the first limiting block can abut against the inner wall of the upper wall of the shell or extend into the first limiting groove, when the first limiting block extends into the first limiting groove, the single-face sealed bearing at the lower end of the first eccentric shaft moves upward under the action of the first spring and drives the first eccentric shaft to move to the position where the first driven gear is meshed with the first driving gear. The rotating speed of the first driven gear is 1 / 3 of the rotating speed of the first driving gear.

4. The emulsification kettle wall scraping module of claim 2, wherein, The center transmission mechanism further comprises a second driving gear fixed to the center shaft, and the emulsifying kettle wall scraping module further comprises a second eccentric transmission mechanism, which comprises a first reduction shaft and a second eccentric shaft parallel to the center shaft, a first input gear and a first output gear fixed to the first reduction shaft, and a second driven gear fixed to the second eccentric shaft, the first input gear meshes with the second driving gear, and the second driven gear is meshable with the first output gear, the inner wall of the upper wall and the inner wall of the lower wall are both fixed with a second sleeve, one end of the second eccentric shaft is provided with a single-sided closed bearing, the upper end of the second eccentric shaft and the single-sided closed bearing at the upper end are located in the second sleeve of the upper wall, the lower end of the second eccentric shaft and the single-sided closed bearing at the lower end are located in the second sleeve of the lower wall, the second sleeve of the lower wall is further provided with a second spring, and the single-sided closed bearing at the lower end of the second eccentric shaft is pressed above the second spring; the upper wall of the shell is provided with a second limiting groove, the second eccentric transmission mechanism further comprises a second conversion structure, the upper end of the second conversion structure is located outside the shell, the lower end of the second conversion structure penetrates through the upper wall of the shell and is pressed on the single-sided closed bearing at the upper end of the second eccentric shaft, the second conversion structure is rotatable relative to the shell, the second conversion structure is provided with a second limiting block, the second limiting block is abuttable against the inner wall of the upper wall of the shell or is extendable into the second limiting groove, when the second limiting block extends into the second limiting groove, the single-sided closed bearing at the lower end of the second eccentric shaft moves upward under the action of the second spring to drive the second eccentric shaft to move to a position where the second driven gear meshes with the first output gear.

5. The emulsification kettle wall scraping module of claim 4, wherein, The rotation speed of the second driven gear is 1 / 9 of the rotation speed of the second driving gear.

6. The emulsification kettle wall scraping module of claim 4, wherein, The center transmission mechanism further comprises a third driving gear fixed to the center shaft, and the emulsification kettle wall scraping module further comprises a third eccentric transmission mechanism, the third eccentric transmission mechanism comprising a second reduction shaft and a third eccentric shaft parallel to the center shaft, a second input gear and a second output gear fixed to the second reduction shaft, and a third driven gear fixed to the third eccentric shaft, the second reduction shaft and the third eccentric shaft being mounted to the shell through bearings, the second input gear being engaged with the third driving gear, and the third driven gear being engageable with the second output gear, the inner wall of the upper wall and the inner wall of the lower wall each being fixed with a third sleeve, each end of the third eccentric shaft being mounted with a single-sided closed bearing, the upper end of the third eccentric shaft and the single-sided closed bearing at the end being located in the third sleeve of the upper wall, the lower end of the third eccentric shaft and the single-sided closed bearing at the end being located in the third sleeve of the lower wall, a third spring being further arranged in the third sleeve of the lower wall, and the single-sided closed bearing at the lower end of the third eccentric shaft being pressed above the third spring.

7. An emulsification kettle wall scraping module according to claim 6, wherein, The rotation speed of the second driven gear is 1 / 15 of the rotation speed of the second driving gear.

8. The emulsification kettle wall scraping module of claim 1, wherein, The emulsification kettle wall scraping module further comprises a sealing connection mechanism, the sealing connection mechanism comprising a first sealing ring annularly fixed to the lower end of the cylindrical rotating wall and coaxial with the cylindrical rotating wall, the first sealing ring forming an annular seal between the lower end of the cylindrical rotating wall and the wall scraping mechanism, the inner wall of the first sealing ring being provided with an annular groove, and the sealing connection mechanism further comprising a second sealing ring annularly fixed to the lower wall of the shell and coaxial with the cylindrical rotating wall, the outer side edge of the second sealing ring extending into the groove of the first sealing ring to form a seal between the lower wall of the shell and the first sealing ring and a dynamic seal between the first sealing ring and the second sealing ring.

9. An emulsification kettle wall scraping module according to claim 8, wherein, The sealing connection mechanism further comprises a third sealing ring between the lower end surface of the side wall of the shell and the second sealing ring.

10. An emulsification kettle wall scraping module according to claim 9, wherein, The first sealing ring, the second sealing ring and the third sealing ring are made of tetrafluoroethylene.

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