High-speed shearing mixer for lubricating oil production

Abstract

This invention provides a high-speed shear mixer for lubricating oil production, comprising a support frame and a mixing tank fixedly connected to the support frame. A undulating track is provided on the mixing tank. A first motor is fixedly connected to the support frame, and a connecting rod is fixedly connected to the output end of the first motor. A first rotating rod is slidably connected to the bottom of the connecting rod, and a movable rod is rotatably connected to the first rotating rod. The movable rod is adapted to the undulating track so that it can drive the first rotating rod to move up and down relative to the connecting rod when rotating with it. The high-speed shear mixer for lubricating oil production provided by this invention, through the cooperation of the undulating track and the movable rod, drives the shearing head to move up and down axially while rotating, forming a three-dimensional composite motion trajectory. This effectively covers blind spots in the mixing tank that cannot be reached by traditional fixed shearing paths, significantly improving the shearing uniformity of high-viscosity lubricating oil and avoiding the problem of insufficient mixing caused by material stratification.

Description

Technical Field

[0001] This utility model relates to the technical field of lubricating oil production equipment, specifically a high-speed shear mixer for lubricating oil production. Background Technology

[0002] In the lubricant production process, the high-speed shear mixer is the core equipment used to fully mix base oil and additives. Traditional high-speed shear mixers usually adopt a structure combining high-speed rotating stirring blades and fixed shear heads to achieve material dispersion and homogenization through mechanical action. However, as lubricant products develop towards higher viscosity and multi-functionality, the existing equipment has gradually revealed its shortcomings in terms of mixing efficiency and uniformity. Especially in the shearing process of high-viscosity lubricants, poor material flowability often leads to insufficient mixing in local areas, affecting the quality of the final product.

[0003] To address the aforementioned problems, existing technologies commonly employ methods such as increasing the stirring speed or increasing the density of the shearing blades. However, these solutions have significant drawbacks: when the shearing blades operate along a fixed trajectory, the high-viscosity lubricating oil tends to form stratified flows within the mixing tank, resulting in repetitive dead zones in the coverage area of ​​the shearing blades and stirring rods. This leads to some materials not being effectively sheared, ultimately resulting in insufficient mixing uniformity. Furthermore, unidirectional shearing action can also cause additive agglomeration, further exacerbating the problem of uneven mixing. Therefore, designing a device capable of dynamically adjusting the shearing path to eliminate mixing dead zones has become a pressing technical challenge in this field.

[0004] In view of this, a high-speed shear mixer for lubricating oil production is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the shearing head and stirring rod of a traditional high-speed shearing mixer for lubricating oil production have repetitive dead angles in their coverage area, which prevents some materials from being effectively sheared and ultimately results in insufficient mixing uniformity. The invention provides a high-speed shearing mixer for lubricating oil production.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a high-speed shear mixer for lubricating oil production, comprising a support and a mixing tank fixedly connected to the support, a undulating track being provided on the mixing tank, a first motor being fixedly connected to the support, a connecting rod being fixedly connected to the output end of the first motor, a first rotating rod being slidably connected to the bottom of the connecting rod, a movable rod being rotatably connected to the first rotating rod, the movable rod being adapted to the undulating track so that it can drive the first rotating rod to move up and down relative to the connecting rod when rotating with the first rotating rod, and two second rotating rods being rotatably connected to the first rotating rod, each of the two second rotating rods being provided with multiple stirring rods and shearing heads.

[0007] Preferably, a second motor is fixedly connected to the second rotating rod, a first bevel gear is fixedly connected to the output end of the second motor, a drive rod is rotatably connected inside the second rotating rod, a second bevel gear is fixedly connected to the middle of the drive rod, the second bevel gear meshes with the first bevel gear, a third bevel gear is fixedly connected to both ends of the drive rod, and a fourth bevel gear is fixedly connected to both of the two second rotating rods, with the two third bevel gears meshing with the two fourth bevel gears respectively.

[0008] Preferably, two shearing blades are fixedly connected to the second rotating rod and are located at both ends of the second rotating rod, and a plurality of stirring rods are located between the two shearing blades.

[0009] Preferably, a limiting block is fixedly connected to the connecting rod, and a limiting groove adapted to the size of the limiting block is opened on the top of the first rotating rod. The bottom of the connecting rod and the inner wall of the limiting groove are elastically connected by a spring.

[0010] Preferably, a protective cover for protecting the second motor is fixedly connected to the first rotating rod.

[0011] Preferably, the two third bevel gears are mirror-arranged at both ends of the drive rod, such that the two fourth bevel gears drive the two second rotating rods to rotate in opposite directions.

[0012] Preferably, the distance between the highest and lowest points of the undulating track is less than the length of the limiting groove.

[0013] Compared with the prior art, this utility model has the following beneficial effects:

[0014] 1. The high-speed shearing mixer for lubricating oil production provided by this utility model drives the shearing head to move up and down along the axis while rotating through the cooperation of the undulating track and the movable rod, forming a three-dimensional composite motion trajectory. This effectively covers the blind area that the traditional fixed shearing path in the mixing tank cannot reach, significantly improves the shearing uniformity of high viscosity lubricating oil, and avoids the problem of insufficient mixing caused by material stratification.

[0015] 2. The high-speed shear mixer for lubricating oil production provided by this utility model drives two sets of shear heads to rotate in opposite directions through a bevel gear set arranged in a mirror image, generating staggered shearing forces in adjacent areas, which enhances the breaking effect on additive agglomerates, and is especially suitable for the dispersion needs of nano-level additives, avoiding local material accumulation caused by unidirectional shearing.

[0016] 3. The high-speed shearing mixer for lubricating oil production provided by this utility model absorbs the axial impact load generated when the shearing head moves at high speed through the elastic connection design of the limiting groove and the spring, reduces the wear caused by rigid collision of mechanical parts, significantly reduces equipment vibration and noise, and extends the service life of key components. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0018] In the attached diagram:

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the mixing tank according to an embodiment of the present invention.

[0021] Figure 3 This is an exploded view of the connecting rod and the first rotating rod according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram showing the connection relationship between the first rotating rod and the second rotating rod according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the connection relationship from another angle in one embodiment of the present utility model.

[0024] In the diagram: 1. Support, 2. Mixing tank, 3. Wave track, 4. First motor, 5. Connecting rod, 6. First rotating rod, 7. Movable rod, 8. Second motor, 9. Second rotating rod, 10. Stirring rod, 11. Shearing head, 12. Limiting block, 13. Limiting groove, 14. Spring, 15. First bevel gear, 16. Drive rod, 17. Second bevel gear, 18. Third bevel gear, 19. Fourth bevel gear, 20. Protective cover. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Please see Figure 1-5 .

[0027] This utility model relates to a high-speed shear mixer for lubricating oil production, comprising a support 1 and a mixing tank 2 fixedly connected to the support 1. A undulating track 3 is provided on the mixing tank 2. A first motor 4 is fixedly connected to the support 1, and a connecting rod 5 is fixedly connected to the output end of the first motor 4. A first rotating rod 6 is slidably connected to the bottom of the connecting rod 5. A movable rod 7 is rotatably connected to the first rotating rod 6. The movable rod 7 is adapted to the undulating track 3 so that it can drive the first rotating rod 6 to move up and down relative to the connecting rod 5 when rotating with the first rotating rod 6. Two second rotating rods 9 are rotatably connected to the first rotating rod 6. Each of the two second rotating rods 9 is provided with multiple stirring rods 10 and shearing heads 11. This arrangement, guided by the undulating track 3, causes the first rotating rod 6 to synchronously generate up-and-down reciprocating motion during rotation, forming a three-dimensional composite motion trajectory. This structure can expand the coverage area of ​​the shearing heads 11, effectively eliminate the shearing blind zone in the mixing tank 2, and improve the mixing uniformity of high-viscosity lubricating oil.

[0028] The second rotating rod 9 is fixedly connected to a second motor 8. The output end of the second motor 8 is fixedly connected to a first bevel gear 15. A drive rod 16 is rotatably connected inside the second rotating rod 9. A second bevel gear 17 is fixedly connected to the middle of the drive rod 16. The second bevel gear 17 meshes with the first bevel gear 15. Both ends of the drive rod 16 are fixedly connected to third bevel gears 18. Both second rotating rods 9 are fixedly connected to fourth bevel gears 19. The two third bevel gears 18 mesh with the two fourth bevel gears 19 respectively. With this configuration, through the transmission design of the bevel gear set, a single second motor 8 can simultaneously drive the two second rotating rods 9 to rotate in opposite directions, so that the shearing head 11 generates bidirectional staggered shearing force, which enhances the crushing effect on additive agglomerates, while reducing external transmission components and simplifying the equipment structure.

[0029] In addition, two shearing heads 11 are fixedly connected to the second rotating rod 9 and are located at both ends of the second rotating rod 9 respectively. Multiple stirring rods 10 are located between the two shearing heads 11. Specifically, through the synergistic effect of the two shearing heads and the middle stirring rod 10, a composite working mode of gradient shearing and stirring is formed, which can quickly break up large particle agglomerates and promote the micro-dispersion of materials, avoiding local uneven mixing caused by unidirectional shearing.

[0030] Secondly, a limiting block 12 is fixedly connected to the connecting rod 5. The top of the first rotating rod 6 is provided with a limiting groove 13 that matches the size of the limiting block 12. The bottom of the connecting rod 5 and the inner wall of the limiting groove 13 are elastically connected by a spring 14. This arrangement is to allow the cooperation between the spring 14 and the limiting block 12 to buffer the impact force when the first rotating rod 6 moves up and down, reduce the damage of mechanical vibration to the transmission system, and limit the displacement range of the first rotating rod 6 to ensure the stability of the cooperation between the undulating track 3 and the movable rod 7.

[0031] Furthermore, a protective cover 20 for protecting the second motor 8 is fixedly connected to the first rotating rod 6. The protective cover 20 is designed to isolate lubricating oil vapor and splashing droplets from entering the motor, preventing short circuits or gear set lubrication failure, and maintaining stable motor operation.

[0032] In addition, the two third bevel gears 18 are mirrored at both ends of the drive rod 16, so that the two fourth bevel gears 19 drive the two second rotating rods 9 to rotate in opposite directions. It should be noted that the mirrored bevel gear set causes the two second rotating rods 9 to rotate in opposite directions, generating symmetrical shear force, balancing the torque load during equipment operation, reducing the vibration of the support 1, and breaking the unidirectional flow trend of lubricating oil through bidirectional shearing action, eliminating laminar mixing dead zones.

[0033] Furthermore, the distance between the highest and lowest points of the undulating track 3 is less than the length of the limiting groove 13. This is to ensure that the vertical movement of the first rotating rod 6 is always within the tolerance range of the limiting groove 13, preventing the movable rod 7 from leaving the undulating track 3 or from mechanically interfering with it, thus ensuring the reliability and motion accuracy of the equipment during long-term operation.

[0034] Working principle:

[0035] During operation, the high-speed shear mixer for lubricating oil production of this utility model drives the connecting rod 5 to cause the first rotating rod 6 to revolve around the axis of the mixing tank 2. At the same time, the movable rod 7 rotates with the first rotating rod 6 and undulates periodically under the constraint of the undulating track 3, forcing the first rotating rod 6 to move up and down along the sliding pair of the connecting rod 5, forming a composite motion trajectory of rotation and axial reciprocating motion. The second motor 8 drives the two second rotating rods 9 to rotate in opposite directions through the bevel gear set. The counter-rotating shearing head 11 generates interlaced shearing force in the mixing tank 2. Combined with the disturbance effect of the middle section stirring rod 10, the high viscosity lubricating oil and additives are quickly broken down and dispersed into a homogeneous system. During the up and down movement of the first rotating rod 6, the spring 14 is compressed or extended in the limiting groove 13 to buffer the impact load. The geometric constraint relationship between the amplitude of the undulating track 3 and the length of the limiting groove 13 ensures the stable cooperation between the movable rod 7 and the track. The mirror bevel gear set balances the torque generated by bidirectional shearing and suppresses equipment vibration, ultimately achieving a synergistic effect of high uniformity mixing and long service life of the equipment.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A high-speed shear mixer for lubricating oil production, characterized in that: The device includes a support (1) and a mixing tank (2) fixedly connected to the support (1). The mixing tank (2) is provided with a undulating track (3). A first motor (4) is fixedly connected to the support (1). A connecting rod (5) is fixedly connected to the output end of the first motor (4). A first rotating rod (6) is slidably connected to the bottom of the connecting rod (5). A movable rod (7) is rotatably connected to the first rotating rod (6). The movable rod (7) is adapted to the undulating track (3) so that when it rotates with the first rotating rod (6), it can drive the first rotating rod (6) to move up and down relative to the connecting rod (5). Two second rotating rods (9) are rotatably connected to the first rotating rod (6). Each of the two second rotating rods (9) is provided with multiple stirring rods (10) and shearing heads (11).

2. The high-speed shear mixer for lubricating oil production as described in claim 1, characterized in that: A second motor (8) is fixedly connected to the second rotating rod (9). A first bevel gear (15) is fixedly connected to the output end of the second motor (8). A drive rod (16) is rotatably connected inside the second rotating rod (9). A second bevel gear (17) is fixedly connected to the middle of the drive rod (16). The second bevel gear (17) meshes with the first bevel gear (15). A third bevel gear (18) is fixedly connected to both ends of the drive rod (16). A fourth bevel gear (19) is fixedly connected to both of the second rotating rods (9). The two third bevel gears (18) mesh with the two fourth bevel gears (19) respectively.

3. The high-speed shear mixer for lubricating oil production as described in claim 1, characterized in that: Two shearing blades (11) are fixedly connected to the second rotating rod (9) and are located at both ends of the second rotating rod (9), and multiple stirring rods (10) are located between the two shearing blades (11).

4. The high-speed shear mixer for lubricating oil production as described in claim 1, characterized in that: A limiting block (12) is fixedly connected to the connecting rod (5). The top of the first rotating rod (6) is provided with a limiting groove (13) that matches the size of the limiting block (12). The bottom of the connecting rod (5) and the inner wall of the limiting groove (13) are elastically connected by a spring (14).

5. The high-speed shear mixer for lubricating oil production as described in claim 2, characterized in that: A protective cover (20) for protecting the second motor (8) is fixedly connected to the first rotating rod (6).

6. The high-speed shear mixer for lubricating oil production as described in claim 2, characterized in that: The two third bevel gears (18) are mirrored at both ends of the drive rod (16), such that the two fourth bevel gears (19) drive the two second rotating rods (9) to rotate in opposite directions.

7. The high-speed shear mixer for lubricating oil production as described in claim 4, characterized in that: The distance between the highest and lowest points of the wave track (3) is less than the length of the limiting groove (13).

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