Stirring device

Abstract

The utility model relates to the technical field of stirring equipment, in particular to a stirring device which comprises a stirring kettle and a driving component for driving the stirring kettle to operate, a stirring shaft is arranged in the stirring kettle, an upper-layer stirring paddle and a lower-layer stirring paddle are respectively arranged on the stirring shaft, and the mounting height of the upper-layer stirring paddle on the stirring shaft is adjustable; the upper-layer stirring paddle is movably connected with the stirring shaft through a bolt, an anti-inversion assembly is arranged outside the bolt, and the bolt and the anti-inversion assembly are clamped and fixed. The mounting height of the upper-layer stirring paddle is adjustable, so that the mounting height of the stirring paddle can be correspondingly adjusted according to the liquid level height of the slurry, and the stirring effect of the slurry is ensured; the upper-layer stirring paddle is movably connected with the stirring shaft, the driving assembly drives the stirring paddle to rotate in the stirring process, the upper-layer stirring paddle can be prevented from loosening in the stirring process by arranging the anti-inversion assembly, and the safety of the stirring device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring equipment, in particular to a stirring device. Background Art

[0002] Whether it is the production front end or the laboratory, the mixer is an indispensable equipment for powder preparation. As the application of powder tends to be high-end and refined, the slurry used to prepare the powder has extremely high requirements for the stirring effect. It is well known that the better the stirring effect, the higher the uniformity of the slurry, and the easier it is to prepare stable and uniform powder, so seeking a stirring device with better stirring effect is very helpful to stabilize production or ensure the accuracy of experiments.

[0003] Most of today's mixers have double-layered impellers, and the slurry stirring effect is best achieved between the upper and lower impellers. As the slurry in the mixer tank gradually increases and the tank becomes fuller, the stirring effect of the slurry in the top layer will become worse and worse. In addition, due to different slurry amounts in experiments or production processes, the liquid level of the slurry in the mixer tank is also different. However, since the positions of the upper and lower impellers are fixed, the slurry liquid level is not fixed relative to the position of the impellers, and it is impossible to guarantee a good stirring effect every time the mixing is performed.

[0004] In the prior art, a height adjustment mechanism is added to the mixer to adjust the position of the stirring paddle of the mixer to meet different slurry liquid level heights. However, the added height adjustment mechanism is usually complex in structure and has the problem of improper fixing of the stirring paddle, which easily causes safety hazards.

[0005] Therefore, it is necessary to provide a stirring device with good stirring effect, simpler structure and higher safety. Utility Model Content

[0006] The utility model provides a stirring device, the installation height of the stirring paddle of the stirring device is adjustable, so that a good stirring effect can be guaranteed for different slurry liquid level heights; and the stirring paddle has good fixability and high safety.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A stirring device, comprising a stirring kettle and a driving assembly for driving the stirring kettle; a stirring shaft is arranged in the stirring kettle, an upper stirring paddle and a lower stirring paddle are arranged on the stirring shaft respectively, and the installation height of the upper stirring paddle on the stirring shaft is adjustable; the upper stirring paddle is movably connected to the stirring shaft by a bolt, an anti-reversal assembly is arranged outside the bolt, and the bolt is engaged and fixed with the anti-reversal assembly;

[0009] The anti-reverse assembly includes an anti-reverse gear, a strong spring and a fixing clip; the anti-reverse gear is clamped and sleeved on the outside of the bolt; the strong spring is also sleeved on the outside of the bolt, and its two ends are respectively compressed and abutted on the end of the bolt and the anti-reverse gear; the fixing clip is arranged on the fixing part of the upper stirring paddle, and is clamped with the serrations of the anti-reverse gear.

[0010] In some embodiments, a groove is provided on the surface of the bolt along the length direction, a protrusion matching the groove is provided in the anti-reverse gear, and the anti-reverse gear is sleeved on the outside of the fixing bolt through the engagement of the protrusion and the groove.

[0011] In some of the embodiments, a spring connecting hole is provided on the anti-reverse gear, and one end of the strong spring is fixedly connected to the anti-reverse gear through the spring connecting hole.

[0012] In some embodiments, the anti-reversal assembly further includes a fixing spring, one end of which is fixed to the fixing portion of the upper stirring paddle by a fixing screw, and the other end of which is fixedly connected to the fixing clip.

[0013] In some of the embodiments, the lower stirring paddle is fixedly disposed at the lower portion of the stirring shaft by fixing bolts, and the installation height of the lower stirring paddle on the stirring shaft is not adjustable.

[0014] In some of the embodiments, the shape of the lower stirring paddle is adapted to the bottom shape of the stirring tank.

[0015] In some embodiments, the driving assembly includes a driving motor, and the driving motor is drivingly connected to the stirring shaft.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The utility model provides a stirring device, which can stir the upper slurry and the lower slurry at the same time by arranging an upper stirring paddle and a lower stirring paddle, thereby achieving a better stirring effect; by arranging the installation height of the upper stirring paddle to be adjustable, the installation height of the stirring paddle can be adjusted according to the liquid level of the slurry, so that the height of the stirring paddle in the slurry is appropriate under different slurry liquid level heights, thereby ensuring the stirring effect of the slurry; because the upper stirring paddle is movably connected to the stirring shaft, the driving component drives the stirring paddle to rotate during the stirring process, and by arranging an anti-reversal component, the upper stirring paddle can be prevented from loosening during the stirring process, thereby improving the safety of the stirring device.

[0018] (2) The stirring device of the utility model is provided with an anti-reverse gear and a fixing clip. The bolts connecting the upper stirring paddle and the stirring shaft are fixed by the anti-reverse gear. At the same time, the anti-reverse gear can be clamped by the fixing clip, so that the stirring shaft can drive the upper stirring paddle to rotate during rotation. At the same time, the bolts will not rotate relative to each other, so that the upper stirring paddle can be well fixed after the height is adjusted, ensuring the smooth progress of the stirring process. By providing a strong spring, the strong spring is in a compressed state, and the anti-reverse gear can be pressed against the fixing part of the upper stirring paddle to prevent it from moving left and right along the bolt axis, thereby further ensuring that the upper stirring paddle can be well fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the stirring device of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the upper stirring paddle and the anti-reversal assembly of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the anti-reverse gear and the fixing clip of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the anti-reverse gear of the utility model;

[0024] Among them: 1-mixing kettle, 2-mixing shaft, 3-upper mixing paddle, 4-lower mixing paddle, 5-bolt, 6-anti-reverse gear, 7-strong spring, 8-fixing clip, 9-fixing part, 10-groove, 11-bump, 12-spring connecting hole, 13-fixing spring, 14-fixing screw. DETAILED DESCRIPTION

[0025] The following will be combined with specific embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0026] like Figure 1-4As shown, the utility model provides a stirring device, including a stirring kettle 1 and a driving assembly (not shown in the figure) for driving the stirring kettle to operate; a stirring shaft 2 is arranged in the stirring kettle 1, and an upper stirring paddle 3 and a lower stirring paddle 4 are respectively arranged on the stirring shaft 2, and the installation height of the upper stirring paddle 3 on the stirring shaft 2 is adjustable; the upper stirring paddle 3 is movably connected to the stirring shaft 2 by a bolt 5, and an anti-reversal assembly is arranged outside the bolt 5, and the bolt 5 is engaged and fixed with the anti-reversal assembly; the anti-reversal assembly includes an anti-reversal gear 6, a strong spring 7 and a fixing clip 8; the anti-reversal gear 6 is engaged and sleeved on the outside of the bolt 5; the strong spring 7 is also sleeved on the outside of the bolt 5, and the two ends are respectively compressed and abutted on the end of the bolt 5 and the anti-reversal gear 6; the fixing clip 8 is arranged on the fixing part 9 of the upper stirring paddle 3, and is engaged with the serrations of the anti-reversal gear 3.

[0027] By arranging the upper stirring paddle 3 and the lower stirring paddle 4, the upper slurry and the lower slurry can be stirred at the same time to achieve a better stirring effect; by arranging the upper stirring paddle 3 to be adjustable in installation height, the installation height of the stirring paddle can be adjusted according to the liquid level of the slurry, so that under different slurry liquid level heights, the height of the stirring paddle in the slurry is moderate, thereby ensuring the stirring effect of the slurry; since the upper slurry 3 is movably connected to the stirring shaft 2, the driving assembly drives the stirring paddle to rotate during the stirring process, and by arranging the anti-reversal assembly, the upper stirring paddle 3 can be prevented from loosening during the stirring process, thereby improving the safety of the stirring device.

[0028] By setting the anti-reverse gear 6 and the fixing clip 8, the bolt 5 connecting the upper stirring paddle 3 and the stirring shaft 2 is fixed by the anti-reverse gear 6, and the anti-reverse gear 6 can be clamped by the fixing clip 8, so that the stirring shaft 2 can drive the upper stirring paddle 3 to rotate, and the bolt 5 will not rotate relative to each other, so that the upper stirring paddle 3 can be well fixed after the height is adjusted, ensuring the smooth progress of the stirring process. By setting the strong spring 7, the strong spring 7 is in a compressed state, and the anti-reverse gear 6 can be pressed on the fixing part 9 of the upper stirring paddle 3 to prevent it from moving left and right along the axial direction of the bolt 5, thereby further ensuring that the upper stirring paddle 3 can be well fixed.

[0029] Specifically, a groove 10 is provided on the surface of the bolt 5 along the length direction, a protrusion 11 matching the groove 10 is provided in the anti-reverse gear 6, and the anti-reverse gear 6 is sleeved on the outside of the fixing bolt 5 through the engagement of the protrusion 11 and the groove 10.

[0030] By respectively providing a groove 10 and a protrusion 11 on the bolt 5 and the anti-reverse gear 6, on the one hand, the two can be engaged with each other to prevent the anti-reverse gear 6 from deviating from the set position; on the other hand, when the bolt 5 rotates, the anti-reverse gear 6 can move up and down driven by the bolt 5, thereby cooperating to complete the position adjustment of the upper stirring paddle 3.

[0031] Specifically, a spring connecting hole 12 is provided on the anti-reverse gear 6 , and one end of the strong spring 7 is fixedly connected to the anti-reverse gear 6 through the spring connecting hole 12 .

[0032] By providing the spring connecting hole 12 , the strong spring 7 can be fixed to the anti-reverse gear 6 , thereby better ensuring the pressing and fixing effect of the strong spring 7 on the anti-reverse gear 6 .

[0033] Specifically, the anti-reversal assembly further includes a fixing spring 13 , one end of which is fixed to the fixing portion 9 of the upper stirring paddle 3 by a fixing screw 14 , and the other end of which is fixedly connected to the fixing clip 8 .

[0034] By setting the fixing spring 13, the fixing clip 8 can be switched between the engaged and unengaged positions; and the fixing spring 13 is a high-strength spring, so when the fixing clip 8 engages the anti-reverse gear 6, the anti-reverse gear can be well fixed without affecting its fixing effect due to the elasticity of the spring.

[0035] Specifically, the lower stirring paddle 4 is fixedly arranged at the lower part of the stirring shaft 2 by fixing bolts, and the installation height of the lower stirring paddle 4 on the stirring shaft 2 is not adjustable. The shape of the lower stirring paddle 4 is adapted to the bottom shape of the stirring kettle 1.

[0036] Since the lower stirring paddle 4 is arranged at the lower part of the stirring shaft 2, close to the bottom of the stirring tank 1, it has little effect on the stirring effect at different slurry liquid level heights, so the lower stirring paddle 4 is conventionally fixed on the stirring shaft 2 and the height is not adjustable, thereby improving the installation stability of the stirring paddle. By setting the shape of the lower stirring paddle 4 to be adapted to the shape of the bottom of the stirring tank 1, the bottom slurry can be stirred better.

[0037] Specifically, the driving assembly includes a driving motor, and the driving motor is drivingly connected to the stirring shaft 2 .

[0038] The working process of the stirring device of the utility model is as follows: first determine the liquid level position of the slurry, then adjust the upper stirring paddle 3 to an appropriate height below the liquid level, fix the strong spring 7 with the spring connecting hole 12 of the anti-reverse gear 6, and then insert the bolt 5 through the strong spring 7 and the anti-reverse gear 6 in sequence into the fixing part 9 of the upper stirring paddle 3 so that the upper stirring paddle 3 is fixedly installed at this height, at which time the strong spring 7 is compressed and presses the anti-reverse gear 6 against the fixing part 9 of the upper stirring paddle 3; then engage and fix the fixing clip 8 on the fixing part 9 of the upper stirring paddle 3 with the anti-reverse gear 6 to complete the fixed installation of the upper stirring paddle 3; after installation, test the machine to make sure that the upper stirring paddle 3 will not be loose before it can be used normally. If it is loose, check whether the fixing clip 8 of the anti-reverse gear 6 is stuck and whether the bolt 5 is intact. It can be used normally after the repair is completed. When the stirring shaft 2 drives the upper stirring paddle 3 to rotate, the matching connection of the bolt 5, the anti-reverse gear 6, the strong spring 7, the fixing clip 8, and the fixing spring 13 can ensure the stable connection of the upper stirring paddle 3 to prevent it from loosening. During stirring, the stirring motor coupling can be used to drive stirring, and the stirring motor is connected to the stirring shaft 2 of this device through the coupling. After stirring, the slurry is discharged through the stainless steel ball valve at the bottom of the stirring kettle 1. The rear end of the slurry discharge can be increased by adding a peristaltic pump, a pipeline pump, a pneumatic pump, etc., which is not specified in this device.

[0039] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A stirring device, characterized in that: The invention comprises a stirring kettle and a driving assembly for driving the stirring kettle to operate; a stirring shaft is arranged in the stirring kettle, an upper stirring paddle and a lower stirring paddle are arranged on the stirring shaft respectively, and the installation height of the upper stirring paddle on the stirring shaft is adjustable; the upper stirring paddle is movably connected to the stirring shaft by a bolt, an anti-reversal assembly is arranged outside the bolt, and the bolt is engaged and fixed with the anti-reversal assembly; The anti-reverse assembly includes an anti-reverse gear, a strong spring and a fixing clip; the anti-reverse gear is clamped and sleeved on the outside of the bolt; the strong spring is also sleeved on the outside of the bolt, and its two ends are respectively compressed and abutted on the end of the bolt and the anti-reverse gear; the fixing clip is arranged on the fixing part of the upper stirring paddle, and is clamped with the serrations of the anti-reverse gear.

2. The stirring device according to claim 1, characterized in that: The bolt surface is provided with a groove along the length direction, the anti-reverse gear is provided with a convex block matching the groove, and the anti-reverse gear is sleeved on the outside of the bolt through the matching engagement of the convex block and the groove.

3. The stirring device according to claim 1, characterized in that: The anti-reverse gear is provided with a spring connecting hole, and one end of the strong spring is fixedly connected to the anti-reverse gear through the spring connecting hole.

4. The stirring device according to claim 1, characterized in that: The anti-reversal assembly also includes a fixing spring, one end of which is fixed to the fixing portion of the upper stirring paddle by a fixing screw, and the other end of which is fixedly connected to the fixing clip.

5. The stirring device according to claim 1, characterized in that: The lower stirring paddle is fixedly arranged at the lower part of the stirring shaft by fixing bolts, and the installation height of the lower stirring paddle on the stirring shaft is not adjustable.

6. The stirring device according to claim 5, characterized in that: The shape of the lower stirring paddle is adapted to the bottom shape of the stirring kettle.

7. The stirring device according to claim 1, characterized in that: The driving assembly comprises a driving motor, and the driving motor is drivingly connected to the stirring shaft.

Images