A stirring device for lubricating oil production

Abstract

The present application provides a stirring device for lubricating oil production, belonging to the technical field of lubricating oil production, which includes a stirring barrel and a feed pipe, a stirring shaft and a driving member for driving the rotation of the stirring shaft arranged on the stirring barrel; the stirring shaft is hollow and rotatably connected inside the stirring barrel, the upper end of the stirring shaft penetrates through the top wall of the stirring barrel and is communicated with the feed pipe in a rotatable connection manner, and a plurality of filter holes are circumferentially arrayed on the stirring shaft, and the filter holes can communicate the inner cavities 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 is communicated with the inner cavity of the bearing tray in a rotatable connection manner, and an electric heating rod penetrating through the stirring shaft is arranged between the feed pipe and the bearing tray, and the stirring shaft and the electric heating rod are coaxially arranged; the present application can quickly dissolve the solid base oil and make it participate in the stirring work, reducing the possibility that the final quality of the lubricating oil is affected.

Description

Technical Field

[0001] This application relates to the technical field of lubricating oil production, and specifically relates 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, mainly playing roles such as 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 a good fluidity state, the base oil is first heated to a certain temperature to prevent the base oil from solidifying during low-temperature storage and affecting the normal progress of subsequent stirring work. Then, various additives are added to the stirring tank in appropriate proportions, and the base oil and additives are evenly mixed by stirring. However, during the heating process of the base oil, some incompletely dissolved base oil may mix into the subsequent stirring work and be discharged together with the finally produced lubricating oil, which is likely to affect the final quality of the lubricating oil.

[0004] Referring to the Chinese patent document with the publication number CN216825988U, the publication date of June 28, 2022, and the name of a stirring device for lubricating oil production, after the stirring work of the lubricating oil is completed, 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 removing incompletely dissolved solid base oil in the lubricating oil by filtration after stirring, although the purity of the lubricating oil can be improved to a certain extent, the ratio parameters of the base oil and additives will change accordingly, resulting in a change in the actual amount of the base oil used in the lubricating oil, and still may affect the final quality of the lubricating oil. Summary of the Invention

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

[0007] To solve the above technical problems, the present application provides a stirring device for lubricating oil production, including a stirring barrel, a feed pipe, a stirring shaft, and a driving member for driving the rotation of the stirring shaft, which are arranged on the stirring barrel; the stirring shaft is hollow and rotatably connected inside the stirring barrel, the upper end of the stirring shaft penetrates through the top wall of the stirring barrel and is communicated with the feed pipe in a rotatable connection manner, and a plurality of filter holes are circumferentially arranged on the stirring shaft, and the filter holes can communicate the inner cavities 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 is communicated with the inner cavity of the bearing tray in a rotatable connection manner, an electric heating rod penetrating through the stirring shaft is arranged between the feed pipe and the bearing tray, and the stirring shaft and the electric heating rod are coaxially arranged.

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

[0009] Optionally, the filter holes are vertically arranged on the stirring shaft in the shape of strip-shaped notches, a sleeve is sleeved outside the electric heating rod, and a plurality of convex shafts matching the filter holes are circumferentially arranged on the outer arc surface of the sleeve, and a transmission member for driving the sleeve to lift is arranged between the bearing tray and the sleeve.

[0010] By adopting the above technical solution, the sleeve and the convex shafts will perform reciprocating lifting movements under the cooperation of the transmission member 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 head 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 penetrates through the filter hole and extends to the off-center position of the inner cavity of the stirring barrel.

[0013] By adopting the above technical solution, the convex shaft can generate a certain auxiliary stirring effect on the lubricating oil raw material during the rotation following the stirring shaft.

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

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

[0016] Optionally, a rubber diaphragm is arranged 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 process when the stirring shaft rotates, the rubber diaphragm can not only play a sealing role but also generate a certain pressure in the inner cavity of the stirring shaft, prompting the solid base oil to continuously displace in the inner cavity of the stirring shaft.

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

[0019] By adopting the above technical solution, the cooperation of the conical rings and the flexible baffles can extrude the subsequent solid base oil entering, so that the solid base oil is transformed into smaller individuals and is more effectively heated and dissolved.

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

[0021] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0022] 1. During the feeding process, it is possible to adopt an auxiliary heating method to prompt the solid base oil in the lubricating oil to dissolve, and at the same time, the solid base oil can be restricted near the heat source by centrifugal filtration, which is beneficial 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 is affected by the change in the actual amount of the base oil used.

[0023] 2. Through the setting of the convex shaft, it is possible to dredge the filter holes during the centrifugal filtration process, reduce the probability that the solid base oil blocks the filter holes and affects the normal progress of the filtration work. At the same time, the convex shaft can also rotate together with the stirring shaft and play a certain auxiliary stirring role on the lubricating oil raw material, improving the mixing effect of the base oil and additives in the lubricating oil raw material.

[0024] 3. During the centrifugal filtration work of the lubricating oil, it is possible to adopt a pump suction and pressurization method to make the solid base oil continuously displace in the inner cavity of the stirring shaft, reducing the possibility that the solid base oil accumulates excessively in the inner cavity of the stirring shaft due to long-term stillness. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of a stirring device for lubricating oil production according to the present application;

[0026] Figure 2 It is a sectional view of the stirring barrel of the present application;

[0027] Figure 3 It is a sectional view of the stirring shaft of the present application;

[0028] Figure 4 For this application Figure 3 Partial enlarged view of area A in the figure;

[0029] Figure 5 For this application Figure 3 Partial enlarged view of area B in the figure.

[0030] Explanation of reference numerals: 1, stirring barrel; 11, feed pipe; 2, stirring shaft; 21, filter holes; 22, supporting tray; 23, electric heating rod; 3, driving member; 31, servo motor; 32, gear; 4, sleeve; 41, convex shaft; 42, transmission member; 421, tension spring; 422, cylindrical cam; 423, ball head pin; 5, rubber diaphragm; 6, conical ring; 7, flexible baffle. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below in conjunction with the Figures 1 - 5 of the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of the embodiments. Based on the described embodiments of this application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by this application.

[0032] Referring to Figure 1 , this embodiment provides a stirring device for lubricating oil production, including a stirring barrel 1, a feed pipe 11 arranged on the stirring barrel 1, a stirring and filtering assembly, and a heating assembly.

[0033] Among them, referring to Figure 1 and Figure 2 , the stirring and filtering assembly includes a stirring shaft 2, a driving member 3, and filter holes 21. The stirring shaft 2 is hollow and is arranged inside the stirring barrel 1 in a rotatable connection manner. The upper end of the stirring shaft 2 penetrates through the top wall of the stirring barrel 1 and is in rotatable connection with the feed pipe 11; a plurality of filter holes 21 are arranged and are circumferentially arrayed on the stirring shaft 2, and the filter holes 21 can communicate the inner cavities 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, and the two gears 32 mesh with each other and are respectively arranged on the output shaft of the servo motor 31 and the top end of the stirring shaft 2 for driving the stirring shaft 2 to rotate.

[0034] Among them, referring to Figure 1 and Figure 2 , the heating assembly includes a supporting tray 22 and an electric heating rod 23. The supporting 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 is in rotatable connection with the inner cavity of the supporting tray 22. The electric heating rod 23 penetrates through the stirring shaft 2 and is arranged between the feed pipe 11 and the supporting tray 22, and the stirring shaft 2 and the electric heating rod 23 are coaxially arranged.

[0035] When carrying out the lubricating oil stirring work, the lubricating oil raw material is sent into the inside of the stirring shaft 2 through the feed pipe 11. At this time, the electric heating rod 23 is used to heat the lubricating oil raw material, so as to promote the dissolution of the solid base oil that may exist in the lubricating oil raw material. Meanwhile, under the cooperation of the driving member 3, the stirring shaft 2 will rotate, so as to carry out centrifugal filtration on the lubricating oil raw material. During this process, the completely dissolved liquid base oil will enter the inside of the stirring barrel 1 through the filter holes 21, while the undissolved solid base oil will be restricted inside the stirring shaft 2 and continuously heated by the electric heating rod 23 until the solid base oil is heated up and dissolved and transformed into liquid base oil. Then, this part of the liquid base oil transformed from the solid base oil will enter the stirring barrel 1 through the filter holes 21 and participate in the stirring work.

[0036] Refer to Figure 3 and Figure 4 As shown in, the filter holes 21 are vertically arranged in a strip-shaped notch on the stirring shaft 2, and a dredging component for cleaning the filter holes 21 is arranged between the electric heating rod 23 and the supporting tray 22. The dredging component includes a sleeve 4, a convex shaft 41 and a transmission member 42. The sleeve 4 is sleeved outside 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 through the filter hole 21 and extends to the distal center 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 head pin 423. The tension spring 421 is arranged between the supporting tray 22 and the sleeve 4. The cylindrical cam 422 is arranged inside the supporting tray 22. The ball head 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 together with the stirring shaft 2 under the action of the radial force generated by the convex shaft 41, and the ball head pin 423 will change its contact point with the inclined surface of the cylindrical cam 422 as the sleeve 4 rotates. At this time, under the cooperation of the tension spring 421, the sleeve 4 will be in a reciprocating lifting state.

[0037] During the rotation of the stirring shaft 2, the sleeve 4 and the convex shaft 41 will perform reciprocating lifting movements along the electric heating rod 23 under the cooperation of the transmission member 42, so that the convex shaft 41 can dredge the filter holes 21 to prevent the solid base oil from blocking the filter holes 21 and affecting the normal development of the filtration work. Moreover, when the convex shaft 41 rotates with the stirring shaft 2, it can also play a certain auxiliary stirring role on the lubricating oil raw material, promoting the mixing of the base oil and additives in the lubricating oil raw material.

[0038] In addition, refer to Figure 2 and Figure 3 As shown in, both the sleeve 4 and the convex shaft 41 are made of high thermal conductivity aluminum alloy.

[0039] Taking advantage of 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 stirring barrel 1, reducing the probability of the lubricating oil raw material solidifying again due to temperature drop during the stirring process.

[0040] Referring to Figure 3 and Figure 5 As shown in, 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. A plurality of conical rings 6 are provided on the inner arc wall of the stirring shaft 2, and a plurality of flexible baffles 7 corresponding to the conical rings 6 one by one are provided on the outer arc surface of the sleeve 4, and both the conical rings 6 and the flexible baffles 7 are located above the filter hole 21.

[0041] During the process of the stirring shaft 2 rotating for centrifugal filtration work, as the sleeve 4 reciprocates up and down, the rubber diaphragm 5 can generate a certain pressure in the inner cavity of the stirring shaft 2 while playing a sealing role, prompting the filtered solid base oil to continuously displace in the inner cavity of the stirring shaft 2, which can reduce the possibility of excessive accumulation of solid base oil in the inner cavity of the stirring shaft 2 due to long-term stillness. And 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, preventing the solid base oil from flowing back upward under the pressure generated by the rubber diaphragm 5. At the same time, during the abutting process of the flexible baffle 7 and the conical ring 6, they can also extrude the subsequent incoming solid base oil, making the solid base oil transform into smaller individuals and being more effectively heated and dissolved.

[0042] The implementation principle of the stirring device for lubricating oil production in the embodiment of the present application is as follows:

[0043] When carrying out the lubricating oil stirring work, the lubricating oil raw material is fed into the inside of the stirring shaft 2 through the feed pipe 11. At this time, the electric heating rod 23 is used to heat the lubricating oil raw material, prompting the possible solid base oil in the lubricating oil raw material to dissolve.

[0044] Meanwhile, under the cooperation of the driving member 3, the stirring shaft 2 will rotate, thereby carrying out centrifugal filtration on the lubricating oil raw material. During this process, the completely dissolved liquid base oil will enter the inside of the stirring barrel 1 through the filter hole 21, while the undissolved solid base oil will be restricted inside the stirring shaft 2 and continuously heated by the electric heating rod 23 until the solid base oil is heated and dissolved and transformed into liquid base oil. Then, this part of the liquid base oil transformed from the solid base oil will enter the stirring barrel 1 through the filter hole 21 and participate in the stirring work.

[0045] During the rotation of the stirring shaft 2, the sleeve 4 and the convex shaft 41 will perform reciprocating lifting motions along the electric heating rod 23 under the cooperation of the transmission part 42, so that the convex shaft 41 can dredge the filter holes 21 to prevent the solid base oil from blocking the filter holes 21 and affecting the normal development of the filtering work. Moreover, during the rotation of the convex shaft 41 following the stirring shaft 2, it can also play a certain auxiliary stirring role on the lubricating oil raw material, promoting the mixing of the base oil and the additive in the lubricating oil raw material.

[0046] In addition, it should be noted that in the description of the present application, unless otherwise clearly specified and limited, the terms "installation", "connection" and "coupling" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0047] The above is the preferred embodiment of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope 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 rotation of the stirring shaft (2), characterized in that: The stirring shaft (2) is hollow and rotatably connected inside the stirring barrel (1). The upper end of the stirring shaft (2) penetrates through the top wall of the stirring barrel (1) and is communicated with the feed pipe (11) in a rotatable connection manner. A plurality of filter holes (21) are circumferentially arrayed on the stirring shaft (2), and the filter holes (21) can communicate the inner cavities of the stirring barrel (1) and the stirring shaft (2); A bearing tray (22) is arranged at the bottom of the inner cavity of the stirring barrel (1). The bottom end of the stirring shaft (2) is open and is communicated with the inner cavity of the bearing tray (22) in a rotatable connection manner. An electric heating rod (23) penetrating through the stirring shaft (2) is arranged between the feed pipe (11) and the bearing tray (22), and the stirring shaft (2) and the electric heating rod (23) are coaxially arranged; The filter holes (21) are vertically arranged in the shape of strip-shaped notches on the stirring shaft (2). A sleeve (4) is sleeved outside the electric heating rod (23). A plurality of convex shafts (41) matching the filter holes (21) are arranged on the outer arc surface of the sleeve (4) in a circumferential array manner. A transmission member (42) for driving the lifting of the sleeve (4) is arranged between the bearing tray (22) and the sleeve (4).

2. The stirring device for lubricating oil production according to claim 1, wherein: The transmission member (42) includes 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). A ball head pin (423) capable of abutting against the inclined surface of the cylindrical cam (422) is arranged at the bottom end of the sleeve (4).

3. The stirring device for lubricating oil production according to claim 1, characterized in that: The convex shaft (41) penetrates through the filter hole (21) and extends to the off-center position of the inner cavity of the stirring barrel (1).

4. A stirring device for lubricating oil production according to claim 1, characterized in that: Both the sleeve (4) and the convex shaft (41) are made of high thermal conductivity aluminum alloy.

5. A stirring device for lubricating oil production according to claim 1, characterized in that: 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).

6. The stirring device for lubricating oil production according to claim 1, wherein: A plurality of conical rings (6) are arranged on the inner arc wall of the stirring shaft (2). A plurality of flexible baffles (7) corresponding to the conical rings (6) one by one are arranged on the outer arc surface of the sleeve (4), and both the conical rings (6) and the flexible baffles (7) are located above the filter hole (21).

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

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