Stirring device for mixing tobacco material liquid and anti-seepage method for transmission liquid

Abstract

The invention discloses a stirring device for mixed tobacco feed liquid and an anti-seepage method for transmission liquid. The stirring device comprises a motor, a speed reducer, a transmission shaft, a sealing ring, a bearing seat, an oil drainage hole, an oil drainage groove, an impeller, a tank body, a straight bevel gear and the like. A sealing gasket, a bearing gasket and a thrust ball bearing are sequentially installed on a transmission shaft and then assembled into a bearing seat, an angular contact ball bearing, a pressing ring and a bearing cover are sequentially installed, and a pressing cover is installed at the bottom. An oil drainage groove and an oil drainage hole are formed in the bearing seat; the bevel gear transmission technology is used for enabling the reducer rotating shaft to be perpendicular to the axis of the transmission shaft. The two-stage bearings are designed to improve the rotation precision and stability of the stirrer rotating shaft, five sealing rings, an oil drainage groove and an oil drainage hole are designed to facilitate inspection and improve the anti-seepage performance of transmission liquid, the bevel gear transmission technology is adopted, it is further ensured that the transmission liquid does not leak to the transmission shaft, tobacco feed liquid does not leak to a tank body and a tobacco production line in the stirring process, and the stirring efficiency is improved. The harsh tobacco product processing technology is met.

Description

Technical Field

[0001] The invention belongs to the field of tobacco, relates to a silk making process technology, and specifically relates to a stirring device for mixing tobacco liquid and a transmission liquid anti-seepage method. Background Art

[0002] In the tobacco processing industry, especially in the silk-making process, liquid feed needs to be sprayed at a certain stage of the silk-making process, usually on the tank cover. The liquid feed is injected into the tank through the input pipe for mixing and stirring, and then discharged from the output pipe and sprayed into the tobacco to enhance the aroma of the cigarette.

[0003] The injected liquid may be one or more flavors, sugars and other liquids. Since the tank volume is large, some can hold more than 1 ton. Therefore, sufficient mixing and stirring of the liquid is particularly important. It is also a key means to ensure the homogenization of tobacco processing. It is difficult to achieve better results by manpower, and it must be done efficiently by machinery.

[0004] In fact, in the industrial field, mixing and stirring of liquids in tanks is very common and ordinary, and the mechanical design is simple. It is only necessary to design a motor, a rotating shaft and stirring blades on the tank cover. This is also the case for most tobacco liquid-slurry mixing. However, in general, if the motor, reducer, rotating shaft and stirring blades are arranged vertically downward on the tank cover, the biggest hidden danger is that the transmission fluid or lubricating fluid can penetrate into the liquid in the tank through the rotating shaft in the axial direction, and it is not easy to detect, or the sealing ring needs to be replaced frequently. Obviously, this is not the best solution. If certain functional motor transmission mechanisms are used to prevent transmission fluid leakage, or no transmission fluid is used, but the power, efficiency or effect are not easy to meet the process requirements, or on a specific production line, such transmission mechanisms with motors and reducers must be used.

[0005] In power transmission mechanical engineering, transmission fluid leakage is not uncommon because the transmission accuracy of the transmission shaft, such as radial runout and axial play errors, is difficult to eliminate and the sealing performance varies. The key lies in the differences in the application process environment and the severity of technical requirements. For example, if the transmission fluid of a car engine leaks into the cylinder, there will be a major safety hazard. Therefore, as a rigorous tobacco product processing technology, in the silk making process, it is particularly important to study the safest and most efficient agitator for mixing tobacco liquid and a method for preventing transmission fluid from leaking.

[0006] In terms of mechanical design, adding multiple sealing rings and oil drain holes in the bearing seat can improve the sealing performance, which can effectively reduce the risk of transmission fluid leakage. The axial direction of the motor shaft and the axial direction of the agitator are perpendicular to each other. Even if bevel gear transmission technology is used, it can theoretically effectively solve the problem of transmission fluid penetrating into the tank body.

[0007] In order to solve the above-mentioned problems, the present invention is proposed. Summary of the invention

[0008] In order to solve at least one aspect of the above problems, the present invention provides a stirring device for mixed tobacco liquid and a method for preventing transmission fluid from seeing through. The stirring device for mixed tobacco liquid comprises a motor, a reducer, a transmission shaft, a sealing ring, a bearing seat, an oil drain hole, an oil drain groove, an impeller, a tank body and a spur bevel gear, etc.; a sealing gasket, a bearing gasket and a thrust ball bearing are sequentially installed on the transmission shaft, and then assembled into the bearing seat, and an angular contact ball bearing and a pressure ring and a bearing cover are sequentially installed, and a pressing cover is installed at the bottom; an impeller is installed on the transmission shaft, and the reducer and the motor are connected; an oil drain groove and an oil drain hole are arranged in the bearing seat; the axis of the reducer rotating shaft and the transmission shaft are made perpendicular by using the bevel gear transmission technology; the present invention designs a two-stage bearing to improve the rotation accuracy and stability of the stirring shaft, designs 5 sealing rings and oil drain grooves and oil drain holes to facilitate inspection and improve the anti-seepage performance of the transmission fluid, and adds the bevel gear transmission technology to ensure that the transmission fluid does not leak to the transmission shaft, and the tobacco liquid does not leak to the tank body and the silk thread during stirring, so as to meet the demanding tobacco product processing technology.

[0009] The technical solution of the present invention is as follows:

[0010] The first aspect of the present invention provides a stirring device for mixing tobacco liquid, which includes a motor 1, a reducer 2, a driving coupling 3, a driven coupling 5, a transmission shaft 6, a bearing cover 7, a first sealing ring 7-1, a first screw 8, a bearing seat 9, a second screw 11, an impeller 12, a first nut 13, a fourth screw 15, a mounting plate 16, an angular contact ball bearing 20, a pressure ring 21, a thrust ball bearing 22, a bearing washer 23, a built-in sealing ring 24, a sealing washer 25, a second sealing ring 26, a pressing cover 27, a third sealing ring 28, a tank body 30, a tank cover 31, a mounting hole 37 and a mounting cover 38;

[0011] The sealing gasket 25, the built-in sealing ring 24, the bearing gasket 23, and the thrust ball bearing 22 are sequentially installed on the transmission shaft 6 and then assembled into the bearing seat 9, and then the angular contact ball bearing 20 and the pressure ring 21 are sequentially installed;

[0012] An annular groove is machined in the inner diameter of the through hole of the bearing washer 23 for mounting the built-in sealing ring 24;

[0013] The second sealing ring 26 is installed in the sealing groove 28-1 designed on the bearing seat 9;

[0014] The bearing cover 7 with the first sealing ring 7-1 built in is installed on the top of the bearing seat 9 by the first screw 8, and the clamping cover 27 with the third sealing ring 28 built in is installed on the bottom of the bearing seat 9 by the fourth screw 15;

[0015] The bearing seat 9 is designed with an oil drain groove 10 - 1 and an oil drain hole 10 to ensure that when oil accumulates in the bearing seat 9 , it can be promptly discharged through the oil drain hole 10 or facilitate inspection.

[0016] The impeller 12 is installed at one end of the transmission shaft 6 through the first nut 13, and the other end is connected to the reducer 2 and the motor 1 through the driven coupling 5 and the driving coupling 3;

[0017] The tank cover 31 at the top of the tank body 30 has the mounting cover 38, and the mounting cover 38 has the mounting hole 37. The transmission shaft 6 extends into the tank body 30 through the mounting hole 37, and the bearing seat 9 is mounted on the mounting cover 38 by the second screw 11;

[0018] The reducer 2 and the motor 1 are mounted on the tank cover 31 of the tank body 30 via the mounting plate 16 .

[0019] Preferably, the stirring device for the mixed tobacco liquid further comprises: a connecting screw 4, a third screw 14, and a screw hole 15-1;

[0020] The driven coupling 5 and the driving coupling 3 are connected by connecting screws 4;

[0021] The bearing seat 9 is mounted on the tank cover 31 on the top of the tank body 30 by means of a third screw 14, and the third screw 14 is engaged with the second threaded holes 36 evenly distributed on the mounting cover 38;

[0022] The threaded hole that matches the fourth screw 15 is the threaded hole 15 - 1 at the bottom of the bearing seat 9 .

[0023] Preferably, the rotation diameter ￠D of the impeller 12 is smaller than the diameter of the mounting hole 37 on the mounting cover 38 .

[0024] Preferably, when the bevel gear transmission technology is adopted, the second spur bevel gear 43 is installed on the rotating shaft 46 of the reducer 2, and the first spur bevel gear 40 is installed on the transmission shaft 6, and the speed ratio is 1:1.

[0025] Preferably, the thread of the first spur bevel gear 40 is designed to be installed at the end of the transmission shaft 6, the first pressing block 41 presses the first spur bevel gear 40, and is tightened by the second nut 42; the thread of the second spur bevel gear 43 is designed to be installed at the end of the transmission shaft 46, the second pressing block 45 presses the second spur bevel gear 43, and is tightened by the third nut 45;

[0026] The module m of the first spur bevel gear 40 and the second spur bevel gear 43 is 4, the number of teeth is 17, the pressure angle is 20°, the face width is 16 mm, and the installation distance is 40 mm.

[0027] Preferably, the tank cover 31 at the top of the tank body 30 has a first input pipe 32, a second input pipe 33, a third input pipe 34 and an output pipe 35, and different types of flavors and sweeteners can be injected into the tank body 30 through the first input pipe 32, the second input pipe 33 or the third input pipe 34 respectively, and finally discharged through the output pipe 35.

[0028] Preferably, a first threaded hole 8-1, M6×20, is designed at the top of the bearing seat 9, with 4 evenly spaced holes for mounting the bearing cover 7; a through hole 14-1 is designed at the bottom of the bearing seat 9, with 8 evenly spaced holes for connecting with the tank cover 31 on the tank body 30.

[0029] Preferably, the sealing groove 28-1 is designed in the inner hole of the bearing seat 9 and the transmission shaft 6 for installing the second sealing ring 26, and the clamping cover 27 with the built-in third sealing ring 28 is designed and installed at its lower part.

[0030] The second aspect of the present invention provides a method for preventing transmission fluid from seeping in a stirring device for a mixed tobacco liquid. Using the stirring device for a mixed tobacco liquid as described in the first aspect of the present invention, at least five sealing rings, including a first sealing ring 7-1, a built-in sealing ring 24, a sealing gasket 25, a second sealing ring 26, and a third sealing ring 28, are designed in the bearing seat 9 to improve the anti-seepage performance of the transmission fluid; in addition to the above-mentioned five sealing rings, there are also a sealing gasket 25 and a built-in sealing ring 24 of the bearing gasket 23.

[0031] The bearing seat 9 is designed with an oil drain groove 10 - 1 and an oil drain hole 10 to ensure that when oil accumulates in the bearing seat 9 , it can be promptly discharged through the oil drain hole 10 or facilitate inspection.

[0032] Preferably, by utilizing bevel gear transmission technology, a second spur bevel gear 43 is installed on the rotating shaft 46 of the reducer 2, and a first spur bevel gear 40 is installed on the transmission shaft 6, so that the axis of the transmission shaft 6 is perpendicular to the rotating shaft 46 of the reducer 2, thereby preventing the transmission fluid in the motor of the reducer 2 from entering the transmission shaft 6 and the bearing seat 9, thereby preventing transmission fluid leakage.

[0033] The agitator for mixing tobacco liquid and the anti-seepage method for transmission liquid of the embodiments of the present invention have the following beneficial effects:

[0034] 1) In the tobacco shred process, the full mixing and stirring of liquids such as flavors and sugars is particularly important. The tank volume is large, and the stirring effect must be good while being safe and reliable. This technical solution can be completed efficiently.

[0035] 2) It is common to arrange the motor, reducer, rotating shaft and agitator on the tobacco silk line vertically downward on the tank cover. Since the rotating shaft of the common agitator has axial play and radial runout errors during high-speed rotation, the sealing ring efficiency is easily reduced. Therefore, there is a great risk that the transmission fluid and lubricating fluid can penetrate into the material liquid in the tank body through the rotating shaft in the axial direction. In this technical solution, two-stage bearings, namely angular contact ball bearings and thrust ball bearings, are designed in the bearing seat, which improves the high-speed rotation accuracy and stability of the agitator rotating shaft. A total of 5 seals are designed on the bearing seat, which is 3 more than the common ones, so that the performance of the sealing ring is improved. An oil drain groove and an oil drain hole are designed under the thrust ball bearing. In addition to facilitating equipment inspection, it also improves the anti-seepage performance of the transmission fluid and improves the safety and purity of the material liquid.

[0036] 3) As the process of adding liquid to tobacco process is extremely strict, any process design to improve the purity of the liquid is necessary. On this basis, the bevel gear transmission technology can be used to make the axis of the transmission shaft and the shaft of the reducer or motor perpendicular. In theory, the transmission fluid in the reducer motor is prevented from entering the transmission shaft and the bearing seat, thus preventing the transmission fluid from leaking. Under this condition, even if there is bearing lubricant in the bearing seat, it can be ensured to be impermeable due to the design of 5 sealing rings, oil drain grooves and oil drain holes. Therefore, the purity of the liquid is also ensured.

[0037] In general power transmission machinery, in order to ensure that the transmission fluid does not leak, a sealing ring is designed on the matching hole diameter of the bearing end cover and the rotating shaft. About 2 levels of sealing may meet the technical requirements. However, for the demanding tobacco product processing technology, this technical solution can meet the requirements and has promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to better understand the above and other purposes, features, advantages and functions of the present invention, reference may be made to the embodiments shown in the accompanying drawings. The same reference numerals in the accompanying drawings refer to the same components. It should be understood by those skilled in the art that the accompanying drawings are intended to schematically illustrate the preferred embodiments of the present invention and have no limiting effect on the scope of the present invention, and the components in the drawings are not drawn to scale.

[0039] In the attached picture:

[0040] Figure 1 It is a schematic diagram of the principle of a mixing agitator for tobacco liquid and a method for preventing transmission liquid from seeping in an embodiment of the present invention;

[0041] Figure 2 is a schematic diagram of the assembly of the bearing and its accessories on the rotating shaft in an embodiment of the present invention;

[0042] Figure 3 is a schematic diagram of the design of a bearing seat according to an embodiment of the present invention;

[0043] Figure 4 The present invention Figure 3 AA section view of the bearing seat schematic;

[0044] Figure 5 The present invention Figure 3 A top view of the bearing housing schematic;

[0045] Figure 6 The present invention Figure 3 Bottom view of the bearing seat schematic;

[0046] Figure 7 is a schematic diagram of the impeller design of an embodiment of the present invention;

[0047] Figure 8 is a schematic diagram of the design of a transmission shaft according to an embodiment of the present invention;

[0048] Fig. 9 This is a schematic diagram of the design of the tank body and its accessories according to the embodiment of the present invention.

[0049] Fig.10 This is a schematic diagram of the structure of a tobacco liquid mixing and stirring device according to one of the embodiments of the present invention;

[0050] Fig.11 is a schematic diagram of the design of a spur bevel gear according to an embodiment of the present invention;

[0051] Fig.12 is a schematic diagram of the bevel gear assembly structure of an embodiment of the present invention;

[0052] Fig.13 It is a schematic diagram of an embodiment of the present invention using bevel gear transmission technology.

[0053] In the attached drawings: 1, motor; 2, reducer; 3, active coupling; 4, connecting screw; 5, driven coupling; 6, transmission shaft; 7, bearing cover; 7-1, first sealing ring; 8, first screw; 8-1, first threaded hole; 9, bearing seat; 10, oil drain hole; 10-1, oil drain groove; 11, second screw; 12, impeller; 13, first nut; 14, third screw; 14-1, through hole; 15, fourth screw; 15-1, screw hole; 16, mounting plate;

[0054] 20. Angular contact ball bearing; 21. Pressure ring; 22. Thrust ball bearing; 23. Bearing washer; 24. Built-in sealing ring; 25. Sealing washer; 26. Second sealing ring; 27. Pressure cover; 28. Third sealing ring; 28-1. Sealing groove;

[0055] 30. tank body; 31. tank cover; 32. first input pipe; 33. second input pipe; 34. third input pipe; 35. output pipe; 36. second threaded hole; 37. mounting hole; 38. mounting cover;

[0056] 40. First spur bevel gear; 41. First pressure block; 42. Second nut; 43. Second spur bevel gear; 44. Third nut; 45. Second pressure block; 46. Rotating shaft. DETAILED DESCRIPTION

[0057] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] According to national standards, mechanical design and its standard parts, all unmarked units of measurement in this application are mm.

[0061] To solve the above problems, to solve at least one aspect of the above problems, the present invention provides a stirrer for mixing tobacco liquid and a method for preventing transmission fluid from seeping. The stirrer for mixing tobacco liquid includes a motor 1, a reducer 2, a driving coupling 3, a connecting screw 4, a driven coupling 5, a transmission shaft 6, a bearing cover 7, a first sealing ring 7-1, a first screw 8, a first threaded hole 8-1, a bearing seat 9, an oil drain hole 10, an oil drain groove 10-1, a second screw 11, an impeller 12, a first nut 13, a third screw 14, a through hole 14-1, a fourth screw 15, a screw hole 15-1, and a mounting plate 16; a corner joint A ball bearing 20 (GB / T292-1994), a pressure ring 21, a thrust ball bearing 22, a bearing washer 23, a sealing ring 24, a sealing washer 25, a second sealing ring 26, a clamping cover 27, a third sealing ring 28, and a sealing groove 28-1; a tank body 30, a tank cover 31, a first input pipe 32, a second input pipe 33, a third input pipe 34, an output pipe 35, a second threaded hole 36, a mounting hole 37, and a mounting cover 38; a first spur bevel gear 40, a first pressure block 41, a second nut 42, a second spur bevel gear 43, a third nut 44, a second pressure block 45, a rotating shaft 46, etc.;

[0062] The sealing gasket 25, the built-in sealing ring 24, the bearing gasket 23, and the thrust ball bearing 22 are sequentially installed on the transmission shaft 6 and then assembled into the bearing seat 9, and then the angular contact ball bearing 20 and the pressure ring 21 are sequentially installed;

[0063] The inner diameter of the through hole of the bearing washer 23 is machined with a 2×2 mm annular groove for mounting the built-in sealing ring 24;

[0064] The second sealing ring 26 is installed in the sealing groove 28-1 designed on the bearing seat 9;

[0065] The bearing cover 7 with the first sealing ring 7-1 built in is installed on the top of the bearing seat 9 by the first screw 8, and the clamping cover 27 with the third sealing ring 28 built in is installed on the bottom of the bearing seat 9 by the fourth screw 15;

[0066] The threaded hole matched with the fourth screw 15 is the threaded hole 15-1 at the bottom of the bearing seat 9;

[0067] The bearing seat 9 is designed with an oil drain groove 10 - 1 and an oil drain hole 10 to ensure that when oil accumulates in the bearing seat 9 , it can be promptly discharged through the oil drain hole 10 or facilitate inspection.

[0068] The impeller 12 is installed at one end of the transmission shaft 6 through the first nut 13, and the other end is connected to the reducer 2 and the motor 1 through the driven coupling 5 and the driving coupling 3, and the driven coupling 5 and the driving coupling 3 are connected by a connecting screw 4;

[0069] The tank cover 31 at the top of the tank body 30 has the mounting cover 38, and the mounting cover 38 has the mounting hole 37. The transmission shaft 6 extends into the tank body 30 through the mounting hole 37, and the bearing seat 9 is mounted on the mounting cover 38 by the second screw 11; the bearing seat 9 is mounted on the tank cover 31 at the top of the tank body 30 by the third screw 14, and the third screw 14 is matched through the second threaded holes 36 evenly distributed on the mounting cover 38.

[0070] The reducer 2 and the motor 1 are mounted on the tank cover 31 of the tank body 30 via the mounting plate 16 .

[0071] The rotation diameter ￠D of the impeller 12 is smaller than the diameter of the mounting hole 37 on the mounting cover 38 .

[0072] When the bevel gear transmission technology is adopted, the second spur bevel gear 43 is installed on the rotating shaft 46 of the reducer 2, and the first spur bevel gear 40 is installed on the transmission shaft 6, and the speed ratio is 1:1.

[0073] The module m of the first spur bevel gear 40 and the second spur bevel gear 43 is 4, the number of teeth is 17, the pressure angle is 20°, the face width is 16 mm, and the installation distance is 40 mm.

[0074] The tank cover 31 at the top of the tank body 30 is provided with a first input pipe 32, a second input pipe 33, a third input pipe 34 and an output pipe 35. Different types of flavors and sweeteners can be respectively injected into the tank body 30 through the first input pipe 32, the second input pipe 33 or the third input pipe 34, and finally discharged through the output pipe 35.

[0075] A first threaded hole 8-1, M6×20 (mm), is designed on the top of the bearing seat 9, with 4 evenly spaced holes for mounting the bearing cover 7; a through hole 14-1 is designed on the bottom of the bearing seat 9, with 8 evenly spaced holes for connecting with the tank cover 31 on the tank body 30.

[0076] A sealing groove 28 - 1 is designed in the inner hole of the bearing seat 9 and the transmission shaft 6 for installing the second sealing ring 26 , and the clamping cover 27 with the third sealing ring 28 built in is designed and installed at its lower part.

[0077] The anti-seepage method of the transmission fluid in the stirring device of the mixed tobacco liquid of this embodiment uses the stirring device of the mixed tobacco liquid of this embodiment, and the first sealing ring 7-1, the built-in sealing ring 24, the sealing gasket 25, the second sealing ring 26, and the third sealing ring 28 are designed in the bearing seat 9, and the anti-seepage performance of the transmission fluid is improved;

[0078] The bearing seat 9 is designed with an oil drain groove 10 - 1 and an oil drain hole 10 to ensure that when oil accumulates in the bearing seat 9 , it can be promptly discharged through the oil drain hole 10 or facilitate inspection.

[0079] By utilizing bevel gear transmission technology, a second spur bevel gear 43 is installed on the rotating shaft 46 of the reducer 2, and a first spur bevel gear 40 is installed on the transmission shaft 6, so that the axis of the transmission shaft 6 is perpendicular to the rotating shaft 46 of the reducer 2, thereby preventing the transmission fluid in the motor of the reducer 2 from entering the transmission shaft 6 and the bearing seat 9, thereby preventing transmission fluid leakage.

[0080] like Figure 2 , Embodiment, select standard parts: angular contact ball bearing 20 uses GB / T292-1994, S7305, outer diameter 62mm, inner diameter 25mm, width 17mm; thrust ball bearing 22 uses GB / T301-1995, S1405, outer diameter 60mm, inner diameter 25mm, width 24mm.

[0081] Based on the standard bearing parts, the bearing seat 9 is designed as follows: Figures 2 to 6 State.

[0082] A first threaded hole 8-1, M6×20 (mm), is designed at the end of the bearing seat 9, 4 of which are evenly distributed, for mounting the bearing cover 7, and a through hole 14-1 is designed at the lower part, 8 of which are evenly distributed, for connecting with the tank cover 31 on the tank body 30.

[0083] An oil drain groove 10-1 with a size of 3×4 (mm) and an oil drain hole 10 with a diameter of ￠3 (mm) are designed to intersect at the bottom of the inner cavity of the bearing seat 9.

[0084] A sealing groove 28 - 1 is designed in the inner hole of the bearing seat 9 and the transmission shaft 6 for installing the third sealing ring 28 , and a clamping cover 27 with the third sealing ring 28 built in is designed and installed at its lower part.

[0085] like Figure 7 As described above, the impeller is designed with a rotating diameter ￠D of 100 mm, which can be installed into the mounting hole 37 on the mounting cover 38. As a key functional part of the agitator, a blade type design can also be adopted.

[0086] like Figure 8 As described above, the transmission shaft 6 is designed with a thread at one end to facilitate the installation and clamping of the impeller 12 by the first nut 13, a keyway at one end to connect a transmission member such as a coupling, and an air remover and a shaft shoulder are designed at the bearing matching position.

[0087] like Fig. 9In this example, the cylindrical diameter of the tank body 30 is designed to be 1000 mm and the height is 1000 mm. A mounting cover 38 is designed and welded to the tank cover 31. The diameter of the mounting hole 37 on the mounting cover 38 is slightly larger than 100 mm. The first input pipe 32, the second input pipe 33, the third input pipe 34 and the output pipe 35 of the flavored gum liquid are designed on the mounting cover 38.

[0088] like Figures 11 to 13 State.

[0089] Based on the fact that the motor, reducer, rotating shaft and agitator are arranged vertically downward on the tank cover, although a 5-level sealing ring is designed on the bearing seat of the above embodiment, theoretically there is still a possibility that the transmission fluid can penetrate into the material liquid in the tank body through the transmission shaft 6 in the axial direction. The present technical solution also provides a second embodiment of power transmission to complete the transmission of motor power to the transmission shaft 6, that is, using bevel gear transmission technology.

[0090] Although the bevel gear transmission has high technical requirements, it can make the axis of the transmission shaft 6 and the rotating shaft of the reducer (or motor) perpendicular, which can theoretically prevent the transmission fluid in the reducer from entering the transmission shaft 6 and the bearing seat.

[0091] Second embodiment: a spur bevel gear 43 is installed on the rotating shaft 46 of the reducer 2, and a spur bevel gear 40 is installed on the transmission shaft 6, with a speed ratio of 1:1; the reducer 2 and the motor 1 are installed on the tank cover 31 of the tank body 30 through the mounting plate 16;

[0092] like Fig.11 As described above, the first spur bevel gear 40 and the second spur bevel gear 43 are designed according to the national standard (GB), and the module is designed to be m=4, the number of teeth is 17, the pressure angle is 20°, the face width is 16mm, and the installation distance is 40mm; the number of teeth design can also be adjusted according to the application conditions and different speed ratios.

[0093] like Fig.12 The bevel gears are assembled, and the threads of the first spur bevel gear 40 are designed to be installed at the end of the transmission shaft 6, and the first pressing block 41 presses the first spur bevel gear 40, and is tightened by the second nut 42; the threads of the second spur bevel gear 43 are designed to be installed at the end of the transmission shaft 46, and the second pressing block 45 presses the second spur bevel gear 43, and is tightened by the third nut 45.

[0094] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. The structures and connection modes of the components in the present invention can be changed, and any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A stirring device for mixing tobacco liquid, characterized in that: It comprises a motor (1), a reducer (2), a driving coupling (3), a driven coupling (5), a transmission shaft (6), a bearing cover (7), a first sealing ring (7-1), a first screw (8), a bearing seat (9), a second screw (11), an impeller (12), a first nut (13), a fourth screw (15), a mounting plate (16), an angular contact ball bearing (20), a pressure ring (21), a thrust ball bearing (22), a bearing washer (23), a built-in sealing ring (24), a sealing washer (25), a second sealing ring (26), a pressing cover (27), a third sealing ring (28), a tank body (30), a tank cover (31), a mounting hole (37) and a mounting cover (38); The sealing gasket (25), the built-in sealing ring (24), the bearing gasket (23), and the thrust ball bearing (22) are sequentially installed on the transmission shaft (6), and then assembled into the bearing seat (9), and then the angular contact ball bearing (20) and the pressure ring (21) are sequentially installed; An annular groove is machined in the inner diameter of the through hole of the bearing washer (23) for mounting the built-in sealing ring (24); The second sealing ring (26) is installed in a sealing groove (28-1) designed on the bearing seat (9); The bearing cover (7) with the first sealing ring (7-1) built in is installed on the top of the bearing seat (9) by means of the first screw (8), and the clamping cover (27) with the third sealing ring (28) built in is installed on the bottom of the bearing seat (9) by means of the fourth screw (15); An oil drain groove (10-1) and an oil drain hole (10) are designed in the bearing seat (9); The impeller (12) is mounted on one end of the transmission shaft (6) via the first nut (13), and the other end is connected to the reducer (2) and the motor (1) via the driven coupling (5) and the driving coupling (3); The tank cover (31) at the top of the tank body (30) is provided with the mounting cover (38), the mounting cover (38) is provided with the mounting hole (37), the transmission shaft (6) passes through the mounting hole (37) and extends into the tank body (30), and the bearing seat (9) is mounted on the mounting cover (38) by means of the second screw (11); The reducer (2) and the motor (1) are mounted on the tank cover (31) of the tank body (30) via the mounting plate (16).

2. The stirring device for mixed tobacco liquid according to claim 1, characterized in that: The stirring device for the mixed tobacco liquid further comprises: a connecting screw (4), a third screw (14), and a screw hole (15-1); The driven coupling (5) and the driving coupling (3) are connected via connecting screws (4); The bearing seat (9) is mounted on the tank cover (31) at the top of the tank body (30) by means of a third screw (14), and the third screw (14) is engaged with second threaded holes (36) evenly distributed on the mounting cover (38); The threaded hole that matches the fourth screw (15) is the screw hole (15-1) at the bottom of the bearing seat (9).

3. The stirring device for mixed tobacco liquid according to claim 1, characterized in that: The rotation diameter ￠D of the impeller (12) is smaller than the diameter of the mounting hole (37) on the mounting cover (38).

4. The stirring device for mixed tobacco liquid according to claim 1, characterized in that: When the bevel gear transmission technology is adopted, a second spur bevel gear (43) is installed on the rotating shaft (46) of the reducer (2), and a first spur bevel gear (40) is installed on the transmission shaft (6), with a rotation speed ratio of 1:

1.

5. The stirring device for mixed tobacco liquid according to claim 4, characterized in that: The thread of the first spur bevel gear (40) is designed to be installed at the end of the transmission shaft (6), and the first pressing block (41) presses the first spur bevel gear (40) and is tightened by a second nut (42); the thread of the second spur bevel gear (43) is designed to be installed at the end of the transmission shaft (46), and the second pressing block (45) presses the second spur bevel gear (43) and is tightened by a third nut (45); The module m of the first spur bevel gear (40) and the second spur bevel gear (43) is 4, the number of teeth is 17, the pressure angle is 20°, the face width is 16 mm, and the installation distance is 40 mm.

6. The stirring device for mixed tobacco liquid according to claim 1, characterized in that: The tank cover (31) at the top of the tank body (30) is provided with a first input pipe (32), a second input pipe (33), a third input pipe (34) and an output pipe (35); different types of flavors and flavored sugar materials can be respectively injected into the tank body (30) through the first input pipe (32), the second input pipe (33) or the third input pipe (34), and finally discharged through the output pipe (35).

7. The stirring device for mixed tobacco liquid according to claim 1, characterized in that: A first threaded hole (8-1) is designed at the top of the bearing seat (9), 4 of which are evenly distributed, for mounting the bearing cover (7); and a through hole (14-1) is designed at the bottom of the bearing seat (9), 8 of which are evenly distributed, for connecting with the tank cover (31) on the tank body (30).

8. The stirring device for mixed tobacco liquid according to claim 1, characterized in that: The sealing groove (28-1) is designed in the inner hole of the bearing seat (9) and the transmission shaft (6) for installing the second sealing ring (26), and the clamping cover (27) with the third sealing ring (28) built in is designed and installed at its lower part.

9. A method for preventing transmission fluid from seeping in a stirring device for mixing tobacco liquid, characterized in that: Using the stirring device for the mixed tobacco liquid according to any one of claims 1 to 8, at least five sealing rings are designed in the bearing seat (9), including a first sealing ring (7-1), a built-in sealing ring (24), a sealing gasket (25), a second sealing ring (26), and a third sealing ring (28), so as to improve the anti-seepage performance of the transmission fluid; An oil drain groove (10-1) and an oil drain hole (10) are designed in the bearing seat (9) to ensure that when oil accumulates in the bearing seat (9), it can be promptly discharged through the oil drain hole (10) or facilitate inspection.

10. The method for preventing transmission fluid from seeping in a stirring device for mixed tobacco liquid according to claim 9, characterized in that: By utilizing bevel gear transmission technology, a second spur bevel gear (43) is installed on the rotating shaft (46) of the reducer (2), and a first spur bevel gear (40) is installed on the transmission shaft (6), so that the axis of the transmission shaft (6) and the rotating shaft (46) of the reducer (2) are perpendicular, thereby preventing the transmission fluid in the motor of the reducer (2) from entering the transmission shaft (6) and the bearing seat (9), thereby preventing the transmission fluid from leaking.

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