Stirring device for lubricating oil production

Abstract

The invention provides a stirring device for lubricating oil production, and belongs to the technical field of lubricating oil production, the stirring device comprises a stirring barrel, a feeding pipe arranged on the stirring barrel, a stirring shaft and a driving part used for driving the stirring shaft to rotate; the stirring shaft is arranged in a hollow mode and rotationally connected into the stirring barrel, the upper end of the stirring shaft penetrates through the top wall of the stirring barrel and communicates with the feeding pipe in a rotationally connected mode, a plurality of filtering holes are formed in the stirring shaft in a circumferential array mode, and the stirring barrel can communicate with an inner cavity of the stirring shaft through the filtering holes; a bearing disc is arranged at the bottom of an inner cavity of the stirring barrel, an opening in the bottom end of the stirring shaft is communicated with an inner cavity of the bearing disc in a rotating connection mode, an electric heating rod penetrating through the stirring shaft is arranged between the feeding pipe and the bearing disc, and the stirring shaft and the electric heating rod are coaxially arranged; the solid base oil can be rapidly dissolved and participates in stirring work, and the possibility that the final quality of the lubricating oil is affected is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of lubricating oil production, and in particular to a stirring device for lubricating oil production. Background Art

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the roles of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering.

[0003] In the production and processing of lubricating oil, in order to keep the base oil in good fluidity, the base oil must first be heated to a certain temperature to prevent the base oil from solidifying in the low-temperature storage state and affecting the normal subsequent mixing work. Then, various additives are added to the mixing tank in appropriate proportions, and the base oil and additives are evenly mixed by stirring. During the heating process of the base oil, some incompletely dissolved base oil may be mixed into the subsequent mixing work and discharged with the final lubricating oil, which is likely to affect the final quality of the lubricating oil.

[0004] Referring to the Chinese patent document with announcement number CN216825988U and announcement date June 28, 2022, entitled A stirring device for lubricating oil production, after completing the stirring of the lubricating oil, the stirred lubricating oil can be filtered to remove impurities and unreacted raw materials in the lubricating oil, thereby improving the purity of the lubricating oil.

[0005] Referring to the above technical solution, when the solid base oil that is not completely dissolved in the lubricating oil is removed by filtering after stirring, although the purity of the lubricating oil can be improved to a certain extent, the ratio parameters of the base oil and the additive will change accordingly, resulting in changes in the actual amount of base oil in the lubricating oil, which may still affect the final quality of the lubricating oil. Summary of the invention

[0006] In view of this, the present application provides a stirring device for lubricating oil production, which is mainly used to solve the problem that the solid base oil that is not completely dissolved in the lubricating oil cannot effectively participate in the stirring work and affects the final quality of the lubricating oil.

[0007] In order to solve the above technical problems, the present application provides a stirring device for lubricating oil production, comprising a stirring barrel and a feed pipe, a stirring shaft and a driving member arranged on the stirring barrel for driving the stirring shaft to rotate; the stirring shaft is hollow and rotatably connected inside the stirring barrel, the upper end of the stirring shaft passes through the top wall of the stirring barrel and is connected to the feed pipe in a rotatable manner, a plurality of filter holes are arranged in a circumferential array on the stirring shaft, and the filter holes can be used for communication between the inner cavity of the stirring barrel and the stirring shaft; a bearing tray is arranged at the bottom of the inner cavity of the stirring barrel, the bottom end of the stirring shaft is open and connected to the inner cavity of the bearing tray in a rotatable manner, an electric heating rod passing through the stirring shaft is arranged between the feed pipe and the bearing tray, and the stirring shaft and the electric heating rod are arranged coaxially.

[0008] By adopting the above technical scheme, the electric heating rod can heat the solid base oil during the feeding process of the lubricating oil raw material, causing the solid base oil to dissolve. The cooperation between the stirring shaft and the filter hole can centrifugally filter the lubricating oil raw material, so that the solid base oil is confined inside the stirring shaft and continuously heated by the electric heating rod.

[0009] Optionally, the filter hole is vertically opened on the stirring shaft in the shape of a strip groove, a sleeve is provided on the outside of the electric heating rod, a plurality of convex shafts matching the filter hole are arranged in a circumferential array on the outer arc surface of the sleeve, and a transmission part for driving the sleeve to rise and fall is arranged between the support tray and the sleeve.

[0010] By adopting the above technical solution, the sleeve and the convex shaft can perform reciprocating lifting motion under the cooperation of the transmission member, so as to dredge the filter holes.

[0011] Optionally, the transmission member includes a tension spring arranged between the bearing tray and the sleeve, a cylindrical cam is arranged inside the bearing tray, and a ball pin capable of abutting against the inclined surface of the cylindrical cam is arranged at the bottom end of the sleeve.

[0012] Optionally, the convex shaft passes through the filter hole and extends to the distal end of the inner cavity of the mixing barrel.

[0013] By adopting the above technical solution, the cam shaft can produce a certain auxiliary stirring effect on the lubricating oil raw material in the process of following the rotation of the stirring shaft.

[0014] Optionally, the sleeve and the convex shaft are both made of high thermal conductivity aluminum alloy.

[0015] By adopting the above technical solution, the sleeve and the convex shaft can transfer the heat generated by the electric heating rod to the lubricating oil raw material in the mixing barrel, thereby reducing the probability of the lubricating oil raw material solidifying again due to the temperature drop during the mixing process.

[0016] Optionally, a rubber diaphragm is provided between the inner arc wall of the stirring shaft and the outer arc surface of the sleeve, and the rubber diaphragm is located below the filter hole.

[0017] By adopting the above technical solution, during the centrifugal filtration work of the stirring shaft rotating, the rubber diaphragm can generate a certain pressure in the inner cavity of the stirring shaft while playing a sealing role, causing the solid base oil to continuously displace in the inner cavity of the stirring shaft.

[0018] Optionally, the inner arc wall of the stirring shaft is provided with a plurality of conical rings, the outer arc surface of the sleeve is provided with a plurality of flexible baffles corresponding to the conical rings one by one, and the conical rings and the flexible baffles are both located above the filter holes.

[0019] By adopting the above technical solution, the conical ring and the flexible baffle cooperate to squeeze the solid base oil that enters subsequently, so that the solid base oil is converted into smaller individuals and is more effectively dissolved by heat.

[0020] Optionally, the driving member includes a servo motor disposed on the stirring barrel, and gears are disposed on the output shaft of the servo motor and on the top end of the stirring shaft, and the two gears are meshed with each other.

[0021] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects: 1. During the feeding process, auxiliary heating can be used to dissolve the solid base oil in the lubricating oil. At the same time, the solid base oil can be confined near the heat source by centrifugal filtration, which is conducive to the rapid dissolution of the solid base oil and its participation in the stirring work, thereby reducing the possibility that the final quality of the lubricating oil will be affected by changes in the actual amount of base oil.

[0022] 2. Through the setting of the cam shaft, the filter holes can be unblocked during the centrifugal filtration process, reducing the probability of solid base oil clogging the filter holes and affecting the normal filtration work. At the same time, the cam shaft can also rotate with the stirring shaft and produce a certain auxiliary stirring effect on the lubricating oil raw material, thereby improving the mixing effect of the base oil and additives in the lubricating oil raw material.

[0023] 3. During the centrifugal filtration of the lubricating oil, the solid base oil can be continuously displaced in the inner cavity of the agitator shaft by means of pump suction and pressurization, thereby reducing the possibility of excessive accumulation of the solid base oil in the inner cavity of the agitator shaft due to long-term static state. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a stirring device for lubricating oil production in this application; Figure 2 A cross-sectional view of the mixing barrel of this application; Figure 3 This is a cross-sectional view of the stirring shaft of this application; Figure 4 For this application Figure 3 A partial enlarged view of the middle area A; Figure 5 For this application Figure 3 A partial enlarged view of area B in the middle.

[0025] Explanation of the reference numerals in the accompanying drawings: 1. Mixing barrel; 11. Feed pipe; 2. Mixing shaft; 21. Filter hole; 22. Support tray; 23. Electric heating rod; 3. Driving member; 31. Servo motor; 32. Gear; 4. Sleeve; 41. Cam shaft; 42. Transmission member; 421. Tension spring; 422. Cylindrical cam; 423. Ball pin; 5. Rubber diaphragm; 6. Conical ring; 7. Flexible baffle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 5 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0027] Reference Figure 1 This embodiment provides a stirring device for lubricating oil production, including a stirring barrel 1, a feeding pipe 11 arranged on the stirring barrel 1, a stirring and filtering component and a heating component.

[0028] Among them, refer to Figure 1 and Figure 2 The stirring and filtering assembly includes a stirring shaft 2, a driving member 3 and a filter hole 21. The stirring shaft 2 is hollow and is arranged inside the stirring barrel 1 in a rotatable connection. The upper end of the stirring shaft 2 penetrates the top wall of the stirring barrel 1 and is connected to the feed pipe 11 in a rotatable connection. There are a plurality of filter holes 21 and they are arranged on the stirring shaft 2 in a circumferential array, and the filter holes 21 can be used to communicate with the inner cavity of the stirring barrel 1 and the stirring shaft 2. The driving member 3 includes a servo motor 31 and two gears 32. The servo motor 31 is arranged on the stirring barrel 1. The two gears 32 are meshed with each other and are respectively arranged on the output shaft of the servo motor 31 and the top of the stirring shaft 2, so as to drive the stirring shaft 2 to rotate.

[0029] Among them, refer to Figure 1 and Figure 2 The heating component includes a tray 22 and an electric heating rod 23. The tray 22 is arranged at the bottom of the inner cavity of the stirring barrel 1, and the bottom end of the stirring shaft 2 is open and connected to the inner cavity of the tray 22 in a rotating connection. The electric heating rod 23 passes through the stirring shaft 2 and is arranged between the feed pipe 11 and the tray 22, and the stirring shaft 2 and the electric heating rod 23 are coaxially arranged.

[0030] When the lubricating oil is stirred, the lubricating oil raw material is fed into the stirring shaft 2 through the feed pipe 11. At this time, the lubricating oil raw material is heated by the electric heating rod 23 to dissolve the solid base oil that may exist in the lubricating oil raw material. At the same time, with the cooperation of the driving member 3, the stirring shaft 2 will rotate, thereby centrifugally filtering the lubricating oil raw material. In this process, the completely dissolved liquid base oil will enter the stirring barrel 1 through the filter hole 21, and the solid base oil that has not yet dissolved will be confined in the stirring shaft 2 and continuously heated by the electric heating rod 23 until the solid base oil is heated and dissolved and converted into liquid base oil. Then, this part of the liquid base oil converted from the solid base oil will enter the stirring barrel 1 through the filter hole 21 and participate in the stirring work.

[0031] Reference Figure 3 and Figure 4 The filter hole 21 is vertically opened on the stirring shaft 2 in the shape of a strip groove, and a dredging component for cleaning the filter hole 21 is arranged between the electric heating rod 23 and the support tray 22. The dredging component includes a sleeve 4, a convex shaft 41 and a transmission member 42. The sleeve 4 is sleeved on the outside of the electric heating rod 23. A plurality of convex shafts 41 are arranged on the outer arc surface of the sleeve 4 in a circumferential array. The convex shaft 41 penetrates the filter hole 21 and extends to the distal end of the inner cavity of the stirring barrel 1; the transmission member 42 includes a tension spring 421, a cylindrical cam 422 and a ball pin 423. The tension spring 421 is arranged between the support tray 22 and the sleeve 4, the cylindrical cam 422 is arranged inside the support tray 22, and the ball pin 423 is arranged at the bottom end of the sleeve 4 and can abut against the inclined surface of the cylindrical cam 422. When the stirring shaft 2 rotates, the sleeve 4 will rotate along with the stirring shaft 2 due to the radial force generated by the cam 41, and the ball pin 423 will change its contact point with the inclined surface of the cylindrical cam 422 as the sleeve 4 rotates. At this time, with the cooperation of the tension spring 421, the sleeve 4 will be in a reciprocating lifting state.

[0032] During the rotation of the stirring shaft 2, the sleeve 4 and the cam 41 will perform reciprocating lifting and lowering motions along the electric heating rod 23 with the cooperation of the transmission member 42, so that the cam 41 can clear the filter holes 21 to prevent the solid base oil from clogging the filter holes 21 and affecting the normal filtering work. In addition, the cam 41 can also produce a certain auxiliary stirring effect on the lubricating oil raw material while rotating with the stirring shaft 2, thereby promoting the mixing of the base oil and additives in the lubricating oil raw material.

[0033] In addition, refer to Figure 2 and Figure 3 The sleeve 4 and the convex shaft 41 are both made of high thermal conductivity aluminum alloy.

[0034] By utilizing the high thermal conductivity of aluminum alloy, the sleeve 4 and the convex shaft 41 can transfer the heat generated by the electric heating rod 23 to the lubricating oil raw material in the mixing barrel 1, thereby reducing the probability of the lubricating oil raw material solidifying again due to the temperature drop during the mixing process.

[0035] Reference Figure 3 and Figure 5 A rubber diaphragm 5 is arranged between the inner arc wall of the stirring shaft 2 and the outer arc surface of the sleeve 4, and the rubber diaphragm 5 is located below the filter hole 21, a plurality of conical rings 6 are arranged on the inner arc wall of the stirring shaft 2, and a plurality of flexible baffles 7 corresponding to the conical rings 6 are arranged on the outer arc surface of the sleeve 4, and the conical rings 6 and the flexible baffles 7 are both located above the filter hole 21.

[0036] During the centrifugal filtration process of the stirring shaft 2 rotating, as the sleeve 4 reciprocates and rises, the rubber diaphragm 5 can generate a certain pressure in the inner cavity of the stirring shaft 2 while playing a sealing role, so as to cause the filtered solid base oil to continuously displace in the inner cavity of the stirring shaft 2, and reduce the possibility of excessive accumulation of the solid base oil in the inner cavity of the stirring shaft 2 due to long-term static. In addition, during the rising process of the sleeve 4, the flexible baffle 7 will abut against the conical ring 6 to achieve a one-way sealing effect, so as to prevent the solid base oil from flowing upward under the pressure generated by the rubber diaphragm 5. At the same time, the flexible baffle 7 and the conical ring 6 can also squeeze the subsequent solid base oil during the abutment process, so that the solid base oil is converted into smaller individuals and is more effectively dissolved by heat.

[0037] The implementation principle of a stirring device for lubricating oil production in the embodiment of the present application is: When the lubricating oil is stirred, the lubricating oil raw material is fed into the stirring shaft 2 through the feed pipe 11. At this time, the lubricating oil raw material is heated by the electric heating rod 23 to dissolve the solid base oil that may exist in the lubricating oil raw material.

[0038] At the same time, with the cooperation of the driving member 3, the stirring shaft 2 will rotate, thereby centrifugally filtering the lubricating oil raw material. During this process, the completely dissolved liquid base oil will enter the stirring barrel 1 through the filter hole 21, while the solid base oil that has not yet dissolved will be confined inside the stirring shaft 2 and continuously heated by the electric heating rod 23 until the solid base oil is heated and dissolved and converted into liquid base oil. Then, this part of the liquid base oil converted from the solid base oil will enter the stirring barrel 1 through the filter hole 21 and participate in the stirring work.

[0039] During the rotation of the stirring shaft 2, the sleeve 4 and the cam 41 will perform reciprocating lifting and lowering motions along the electric heating rod 23 with the cooperation of the transmission member 42, so that the cam 41 can clear the filter holes 21 to prevent the solid base oil from clogging the filter holes 21 and affecting the normal filtering work. In addition, the cam 41 can also produce a certain auxiliary stirring effect on the lubricating oil raw material while rotating with the stirring shaft 2, thereby promoting the mixing of the base oil and additives in the lubricating oil raw material.

[0040] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A stirring device for lubricating oil production, comprising a stirring barrel (1), a feed pipe (11) arranged on the stirring barrel (1), a stirring shaft (2), and a driving member (3) for driving the stirring shaft (2) to rotate, characterized in that: The stirring shaft (2) is hollow and rotatably connected to the inside of the stirring barrel (1); the upper end of the stirring shaft (2) passes through the top wall of the stirring barrel (1) and is connected to the feed pipe (11) in a rotatable manner; a plurality of filter holes (21) are arranged in a circumferential array on the stirring shaft (2); the filter holes (21) allow the inner cavities of the stirring barrel (1) and the stirring shaft (2) to communicate with each other; A support tray (22) is provided at the bottom of the inner cavity of the stirring barrel (1); the bottom end of the stirring shaft (2) is open and connected to the inner cavity of the support tray (22) in a rotatable manner; an electric heating rod (23) is provided between the feed pipe (11) and the support tray (22) and passes through the stirring shaft (2); and the stirring shaft (2) and the electric heating rod (23) are coaxially arranged.

2. A stirring device for lubricating oil production according to claim 1, characterized in that: The filter hole (21) is vertically formed in the shape of a strip notch on the stirring shaft (2); a sleeve (4) is sleeved on the outside of the electric heating rod (23); a plurality of convex shafts (41) matching the filter hole (21) are arranged in a circumferential array on the outer arc surface of the sleeve (4); and a transmission member (42) for driving the sleeve (4) to rise and fall is arranged between the support tray (22) and the sleeve (4).

3. A stirring device for lubricating oil production according to claim 2, characterized in that: The transmission member (42) comprises a tension spring (421) arranged between the bearing tray (22) and the sleeve (4); a cylindrical cam (422) is arranged inside the bearing tray (22); and a ball pin (423) capable of abutting against the inclined surface of the cylindrical cam (422) is arranged at the bottom end of the sleeve (4).

4. A stirring device for lubricating oil production according to claim 2, characterized in that: The convex shaft (41) passes through the filter hole (21) and extends to the distal end of the inner cavity of the mixing barrel (1).

5. A stirring device for lubricating oil production according to claim 2, characterized in that: The sleeve (4) and the convex shaft (41) are both made of high thermal conductivity aluminum alloy.

6. A stirring device for lubricating oil production according to claim 2, characterized in that: A rubber diaphragm (5) is provided between the inner arc wall of the stirring shaft (2) and the outer arc surface of the sleeve (4), and the rubber diaphragm (5) is located below the filter hole (21).

7. A stirring device for lubricating oil production according to claim 2, characterized in that: The inner arc wall of the stirring shaft (2) is provided with a plurality of conical rings (6), and the outer arc surface of the sleeve (4) is provided with a plurality of flexible baffles (7) corresponding one to one with the conical rings (6), and both the conical rings (6) and the flexible baffles (7) are located above the filter holes (21).

8. A stirring device for lubricating oil production according to claim 1, characterized in that: The driving member (3) comprises a servo motor (31) arranged on the stirring barrel (1), and gears (32) are arranged on the output shaft of the servo motor (31) and on the top of the stirring shaft (2), and the two gears (32) are meshed with each other.

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