Mixing device for preparing lubricating oil

Abstract

The utility model discloses a mixing device for lubricating oil preparation. Relates to the field of lubricating oil preparation equipment. Comprising a mixing bin, a stirring shaft is arranged on the inner side of the mixing bin, a motor is arranged at the top of the mixing bin, the upper end of the stirring shaft penetrates through the top of the mixing bin and is connected with an output shaft of the motor, and the lower end of the stirring shaft extends downwards to the bottom of the inner side of the mixing bin; the lower part of the stirring shaft is provided with a mounting sleeve, the mounting sleeve is in threaded connection with the stirring shaft bracket, the outer wall of the mounting sleeve is symmetrically provided with a pair of stirring blades, each stirring blade is in a trapezoid shape with a small upper part and a large lower part, and each stirring blade is provided with a plurality of through holes. The lubricating oil mixing effect can be improved, and abrasion of the lubricating oil to the stirring blades can be remarkably reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the field of lubricating oil preparation equipment, in particular to a mixing device for lubricating oil preparation. BACKGROUND

[0002] Lubricating oil is added to many devices such as automobile engines and oil pumps to reduce wear and tear between internal parts, thereby prolonging the service life of the device. At present, in the process of producing lubricating oil, it is often necessary to mix and stir the lubricating oil raw materials.

[0003] A lubricating oil preparation device disclosed in a Chinese patent document with the publication number CN219964871U comprises a fixed base, a support rod assembled on the fixed base, a reaction barrel assembled on the support rod, a driving motor assembled on the reaction barrel, a transmission gear assembled on the driving motor, a fixed rod assembled on the reaction barrel, a fixed plate assembled on the fixed rod, a transmission shaft assembled on the fixed plate, a first bevel gear assembled on the transmission shaft, a sleeve rod assembled on the transmission shaft, the sleeve rod being movably penetrated by the transmission shaft, a second bevel gear assembled on the sleeve rod, a connecting rod assembled on the sleeve rod, a scraper assembled on the connecting rod, the surface of the scraper being in contact with the inner wall surface of the reaction barrel, an assembling disc assembled on the transmission shaft, a first stirring paddle assembled on the assembling disc, and a second stirring paddle assembled on the connecting rod. The above-mentioned lubricating oil preparation device solves the problem that the existing lubricating oil is adhered to the inner wall surface of the device, causing product waste and the need for regular cleaning, by continuously stirring the inner wall of the reaction barrel with the scraper.

[0004] In the above-mentioned patent, the stirring action of the lubricating oil is realized by the first stirring paddle and the second stirring paddle. The first stirring paddle and the second stirring paddle rotate in opposite directions to improve the stirring effect. However, this may cause the problem of excessive interaction force between the first stirring paddle, the second stirring paddle and the lubricating oil, which may easily lead to damage of the first stirring paddle or the second stirring paddle. UTILITY MODEL CONTENT

[0005] In order to overcome the deficiencies of the prior art, the application provides a mixing device for lubricating oil preparation.

[0006] The application adopts the following technical scheme: a mixing device for lubricating oil preparation, comprising a mixing bin, an agitator shaft being arranged on the inner side of the mixing bin, an electric motor being arranged on the top of the mixing bin, the upper end of the agitator shaft penetrating through the top of the mixing bin and being connected with the output shaft of the electric motor, and the lower end of the agitator shaft extending downward to the inner bottom of the mixing bin.

[0007] A mounting sleeve is arranged on the lower part of the agitator shaft, the mounting sleeve is connected with the agitator shaft support through threads, a pair of stirring blades is symmetrically arranged on the outer wall of the mounting sleeve, the stirring blades are in the shape of a trapezoid with the upper part being small and the lower part being large, and a plurality of perforations are arranged on the stirring blades.

[0008] Optionally, the top of the mixing bin is provided with a feeding hopper for feeding lubricating oil and additives to be mixed into the mixing bin, and the bottom of the mixing bin is provided with a discharging pipe for discharging mixed lubricating oil from the mixing bin.

[0009] Optionally, the lower part of the stirring blade is provided with a collecting hopper, the bottom of the collecting hopper is closed, the top of the collecting hopper is open, the collecting hopper is connected with the stirring blade by bolts, and the collecting hopper is used for collecting waste chips in the lubricating oil.

[0010] Optionally, the height of the collecting hopper is less than half the height of the stirring blade.

[0011] Optionally, the top of the mixing bin is provided with a sleeve, the upper end of the stirring shaft passes through the sleeve and out of the mixing bin, a pair of sealing rings are arranged on the inner wall of the sleeve, the pair of sealing rings are arranged on the stirring shaft and are vertically spaced, and the stirring shaft can rotate in the sealing rings.

[0012] Optionally, the upper part of the stirring shaft is provided with a cavity, the outer wall of the upper part of the stirring shaft is provided with an air inlet and a plurality of air outlets which are in communication with the cavity, and the plurality of air outlets are located on the inner side of the mixing bin.

[0013] The inner wall of the sleeve is provided with a gas groove, the top of the sleeve is provided with a gas conveying pipe, the gas conveying pipe is in communication with the gas groove, and the gas groove and the air inlet are located between the pair of sealing rings.

[0014] In summary, the present application has the following advantages:

[0015] 1. A pair of stirring blades are symmetrically arranged on the stirring shaft, and a plurality of perforations are formed in the stirring blades, so that part of the lubricating oil directly passes through the stirring blades through the perforations, and the other part of the lubricating oil flows backward along the outer wall of the stirring blades, so that the lubricating oil is divided and a speed difference is generated, thereby improving the mixing effect of the lubricating oil and significantly reducing the wear of the stirring blades.

[0016] 2. By arranging the collecting hopper on the stirring blade, automatic recovery of waste chips can be realized, ensuring reliable mixing and also playing a filtering role on the lubricating oil. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a structural schematic diagram of the present application;

[0018] Fig. 2 is an assembled state reference diagram of the stirring blade and the collecting hopper;

[0019] Fig. 3 is an internal structure sectional view of the stirring shaft and the sleeve;

[0020] In the diagram: 1. Mixing chamber; 11. Feed hopper; 12. Discharge pipe; 13. Sleeve; 131. Sealing ring; 132. Air groove; 133. Air supply pipe; 2. Stirring shaft; 21. Mounting sleeve; 22. Cavity; 23. Air inlet; 24. Air outlet; 3. Motor; 4. Stirring blades; 41. Perforation; 42. Collection hopper; 43. Bolt. Detailed Implementation

[0021] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] like Figs. 1-3 As shown, a mixing device for preparing lubricating oil includes a mixing chamber 1. A stirring shaft 2 is located inside the mixing chamber 1, and a motor 3 is located at the top of the mixing chamber 1. The upper end of the stirring shaft 2 passes through the top of the mixing chamber 1 and is connected to the output shaft of the motor 3. The lower end of the stirring shaft 2 extends downward to the bottom of the inner side of the mixing chamber 1. A mounting sleeve 21 is located at the lower part of the stirring shaft 2, and the mounting sleeve 21 is threadedly connected to the support of the stirring shaft 2. A pair of stirring blades 4 are symmetrically arranged on the outer wall of the mounting sleeve 21. The stirring blades 4 are trapezoidal in shape, smaller at the top and larger at the bottom, and have several through holes 41. The stirring blades 4 can stir the lubricating oil. Because the two stirring blades 4 rotate in the same direction, the interaction force between the stirring blades 4 and the lubricating oil is small, which can extend the service life of the stirring blades 4. Furthermore, the stirring blade 4 is provided with several perforations 41. During the rotation of the stirring blade 4, some lubricating oil will pass directly through the perforations 41 and some lubricating oil will flow backward along the outer wall of the stirring blade 4. In this way, a speed difference will be generated inside the lubricating oil, thereby improving the mixing effect of the lubricating oil and significantly reducing the wear of the stirring blade 4 by the lubricating oil.

[0023] The mixing chamber 1 is provided with a feed hopper 11 at the top and a discharge pipe 12 at the bottom. The feed hopper 11 is used to feed the lubricating oil and additives to be mixed into the mixing chamber 1, and the discharge pipe 12 is used to discharge the mixed lubricating oil from the mixing chamber 1. This allows for flexible replenishment of the lubricating oil and additives to be mixed and timely removal after mixing, thus improving the mixing efficiency.

[0024] The lower part of the stirring blade 4 is provided with a collecting hopper 42, the bottom of the collecting hopper 42 is closed, the top of the collecting hopper 42 is open, the collecting hopper 42 is connected with the stirring blade 4 through a bolt 43, and the collecting hopper 42 is used for collecting the waste in the lubricating oil. The inner diameter of the perforation 41 is smaller than the outer diameter of the waste, so that the stirring blade 4 can play a certain filtering role during rotation of the stirring blade 4, that is, the waste in the lubricating oil is intercepted on the surface of the stirring blade 4. After a period of operation, the rotating speed of the stirring shaft 2 can be reduced, so that the waste on the stirring blade 4 can fall into the collecting hopper 42 under the action of gravity. When the waste falls into the collecting hopper 42, the stirring shaft 2 can restore a high rotating speed, at this time, the waste will not move upward to the outside of the collecting hopper 42 under the action of centrifugal force. After the lubricating oil is mixed, the collecting hopper 42 can be removed through the bolt 43, so as to facilitate recycling and processing of the waste. Further, the collecting hopper 42 faces the rotating direction of the stirring blade 4, so as to ensure that the waste can fall into the collecting hopper 42.

[0025] The height of the collecting hopper 42 is less than half the height of the stirring blade 4, so that the collecting hopper 42 avoids covering more perforations 41, and the stirring effect of the stirring blade 4 is ensured not to be affected by the collecting hopper 42.

[0026] The top of the mixing bin 1 is provided with a sleeve 13, the upper end of the stirring shaft 2 passes out of the mixing bin 1 through the sleeve 13, the inner wall of the sleeve 13 is provided with a pair of sealing rings 131, a pair of the sealing rings 131 are sleeved on the stirring shaft 2 and are vertically spaced, and the stirring shaft 2 can rotate in the sealing rings 131. Under the cooperation of the sleeve 13 and the sealing rings 131, the stirring shaft 2 can reliably rotate, so as to ensure that the lubricating oil will not leak outward through the joint between the stirring shaft 2 and the mixing bin 1.

[0027] The upper part of the stirring shaft 2 is provided with a cavity 22. The upper outer wall of the stirring shaft 2 is provided with an air inlet 23 and several air outlets 24, all of which are connected to the cavity 22. The several air outlets 24 are located inside the mixing chamber 1. The inner wall of the sleeve 13 is provided with an air groove 132. The top of the sleeve 13 is provided with an air supply pipe 133, which is connected to the air groove 132. The air groove 132 and the air inlet 23 are both located between a pair of sealing rings 131. During the stirring process of the stirring blades 4, the air supply pipe 133 can supply gas into the air groove 132. After entering the air groove 132, the gas can enter the cavity 22 through the air inlet 23, and finally be discharged outward into the mixing chamber 1 through the air outlets 24. Thus, the airflow can promote the mixing of the lubricating oil. Under the sealing effect of a pair of sealing rings 131, the gas will not leak out after it is discharged from the gas groove 132, but can only enter the cavity 22, ensuring that the gas can still be transported while the stirring shaft 2 is rotating.

[0028] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A mixing apparatus for preparing lubricating oil, characterized in that, It includes a mixing chamber (1), a stirring shaft (2) is provided on the inner side of the mixing chamber (1), a motor (3) is provided on the top of the mixing chamber (1), the upper end of the stirring shaft (2) passes through the top of the mixing chamber (1) and is connected to the output shaft of the motor (3), and the lower end of the stirring shaft (2) extends downward to the bottom of the inner side of the mixing chamber (1). The lower part of the stirring shaft (2) is provided with a mounting sleeve (21), which is connected to the support of the stirring shaft (2) by a thread. A pair of stirring blades (4) are symmetrically provided on the outer wall of the mounting sleeve (21). The stirring blades (4) are trapezoidal in shape, with the upper part smaller than the lower part. Several perforations (41) are provided on the stirring blades (4).

2. The mixing apparatus for preparing lubricating oil according to claim 1, characterized in that, The mixing chamber (1) is provided with a feed hopper (11) at the top and a discharge pipe (12) at the bottom. The feed hopper (11) is used to feed the lubricating oil and additives to be mixed into the mixing chamber (1), and the discharge pipe (12) is used to discharge the mixed lubricating oil from the mixing chamber (1).

3. The mixing apparatus for preparing lubricating oil according to claim 1, characterized in that, The lower part of the stirring blade (4) is provided with a collection hopper (42). The bottom of the collection hopper (42) is closed and the top of the collection hopper (42) is open. The collection hopper (42) is connected to the stirring blade (4) by bolts (43). The collection hopper (42) is used to collect waste debris in the lubricating oil.

4. The mixing apparatus for preparing lubricating oil according to claim 3, characterized in that, The height of the collecting hopper (42) is less than half the height of the stirring blade (4).

5. The mixing apparatus for preparing lubricating oil according to claim 3, characterized in that, The top of the mixing chamber (1) is provided with a sleeve (13), and the upper end of the stirring shaft (2) passes through the sleeve (13) to exit the mixing chamber (1). A pair of sealing rings (131) are provided on the inner wall of the sleeve (13). The pair of sealing rings (131) are sleeved on the stirring shaft (2) and spaced apart in the vertical direction. The stirring shaft (2) can rotate inside the sealing rings (131).

6. The mixing apparatus for preparing lubricating oil according to claim 5, characterized in that, The upper part of the stirring shaft (2) is provided with a cavity (22), and the upper outer wall of the stirring shaft (2) is provided with an air inlet (23) and several air outlets (24) that are all connected to the cavity (22). The several air outlets (24) are located inside the mixing chamber (1). The inner wall of the sleeve (13) is provided with an air groove (132), and the top of the sleeve (13) is provided with an air supply pipe (133). The air supply pipe (133) is connected to the air groove (132), and the air groove (132) and the air inlet (23) are both located between a pair of sealing rings (131).

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