A stirring tank for fluid coating production

Abstract

The present invention belongs to the technical field of stirring tank devices, and specifically relates to a stirring tank for fluid coating production, which includes a tank body, a motor, a speed reducer, and a stirrer; the speed reducer includes a hydraulic cylinder, the hydraulic cylinder is installed on one side of the speed reducer, and a piston slides in the hydraulic cylinder, and one end of the piston is connected to an electric push rod arranged at the top of the hydraulic cylinder; the hydraulic cylinder is evenly provided with oil pipes, and a heat dissipation pipe is arranged on one side of the hydraulic cylinder. Subsequently, when the electric push rod changes from the static state to the state of squeezing hydraulic oil, after the lubricating oil in the filter pipe is squeezed, the cover plate is pushed open, the cover plate slides away from the filter pipe, the lubricating oil in the filter pipe flows away, and the impurities in the collection tank are intercepted by the net and will not be carried away by the flowing lubricating oil, completing the filtration of impurities such as sludge in the lubricating oil, improving the filtration effect, thereby improving the working stability of the speed reducer, and further improving the power transmission effect of the stirring tank.

Description

Technical Field

[0001] The present invention belongs to the technical field of stirring tank devices, and specifically relates to a stirring tank for fluid coating production. Background Art

[0002] A stirring tank is used to stir, mix, blend, and homogenize materials. Stainless steel stirring tanks can be designed with standardized and user-friendly structures and configurations according to production process requirements. During the stirring process, the stirring tank can achieve feeding control, discharging control, stirring control, and other manual and automatic controls. The structure of the stirring tank consists of a stirring tank body, a stirring tank cover, a stirrer, a support, a transmission device, a reduction device, a shaft seal device, etc. It can also be equipped with a heating device or a cooling device according to process requirements. Among them, the reduction device, such as a reducer, is an independent component composed of a gear drive, a worm drive, or a gear-worm drive enclosed in a rigid housing, and is commonly used as a speed reduction transmission device between the prime mover and the working machine. It plays a role in matching the rotational speed and transmitting torque between the prime mover and the working machine or the actuator.

[0003] However, during the long-term operation of the stirring tank, the transmission efficiency of the reducer is particularly important for the stirring tank. If the reducer overheats due to insufficient heat dissipation for a long time, it will accelerate the wear of gear parts, cause bearing damage, generate noise and excessive friction, resulting in part damage and affecting the working effect of the stirring tank. If the impurity filtration effect in the reducer is insufficient, the gear parts will accelerate wear due to the intervention of impurities during the contact process, and even cause jamming or damage. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art and solve the above technical problems, the present invention proposes a stirring tank for fluid coating production.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows: The present invention proposes a stirring tank for fluid coating production, which includes a tank body, a motor, a reducer, and a stirrer. The reducer includes:

[0006] A hydraulic cylinder, which is installed on one side of the reducer. A piston slides in the hydraulic cylinder, and one end of the piston is connected to an electric push rod arranged at the top of the hydraulic cylinder. The hydraulic cylinder is evenly provided with oil pipes. One side of the hydraulic cylinder is provided with a heat dissipation pipe. One of the two oil pipes is connected to one end of the heat dissipation pipe, and the other oil pipe is connected to the bottom of the reducer. The other end of the heat dissipation pipe is connected to nozzles evenly arranged at the inner top of the reducer. A oil pipe is connected to the central position of the arc-shaped bottom of the reducer, and a fan blade is rotatably connected in the oil pipe. A scraping blade is arranged at the top of the fan blade.

[0007] A filter screen is installed inside the hydraulic cylinder, and the filter screen is located between two oil pipes. A conducting wire is provided inside the hydraulic cylinder and is connected to the filter screen. At the central position inside the filter screen, there is a filter tube, and the inner wall of the filter tube is serrated.

[0008] Preferably, a fixed cylinder is provided on one side of the hydraulic cylinder, and the heat dissipation tube is located between the hydraulic cylinder and the fixed cylinder. At the center inside the fixed cylinder, there is a fan, and sprayers are evenly provided on the inner wall of the fixed cylinder. A rotating shaft is installed inside the filter tube, and there is a rotating plate on the rotating shaft. One side of the rotating plate contacts the serrated inner wall of the filter tube. Collection grooves are opened on the inner wall of the filter tube, and a retaining net is provided at the opening part of the collection groove. The retaining net covers the part of the collection groove away from the piston, and the part of the collection groove close to the piston is in an open state.

[0009] Preferably, a cover plate is sleeved on the rotating shaft, and the cover plate is slidably connected to the rotating shaft through a spring. One side of the cover plate seals the end of the filter tube away from the piston. One end of the rotating shaft penetrates through one end of the hydraulic cylinder and is located outside. A driving member is provided at one end of the hydraulic cylinder and is connected to one end of the rotating shaft.

[0010] Preferably, adsorption cotton is evenly provided at the outer edge of the filter screen, and the adsorption cotton is distributed annularly around the axis of the filter screen. The adsorption cotton is located at the connection between the filter screen and the inner wall of the hydraulic cylinder, and filter slots are evenly opened on the adsorption cotton.

[0011] Preferably, a rotating rod is provided at one end of the rotating shaft, and the bottom of the rotating rod contacts the surface of the filter tube close to the piston. The surface of the filter screen close to the piston covers the filter tube, and lubricating oil enters the filter tube through the mesh holes in the filter screen.

[0012] Preferably, a slider is slidably connected to the filter screen through a spring, and a roller is unidirectionally rotatably connected to the bottom of the slider. One side of the slider contacts the surface of the rotating rod, and the rotating rod is arc-shaped.

[0013] Preferably, the part of the filter screen close to the inner wall of the hydraulic cylinder is made of plastic material, and the part of the filter screen close to the inner wall of the hydraulic cylinder is located above the filter slots.

[0014] Preferably, a sampling box is provided on the surface of the hydraulic cylinder, and one end of the sampling box extends into the filter slots, and the other end is located outside the hydraulic cylinder.

[0015] Preferably, a valve is provided inside the sampling box, and a detector is provided inside the sampling box located outside the hydraulic cylinder. The detector is used to detect the quality of the lubricating oil.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. For a stirring tank for producing fluid coatings according to the present invention, subsequently, the electric push rod changes from a static state to a state of extruding hydraulic oil. After the lubricating oil in the filter pipe is extruded, the cover plate is pushed open, and the cover plate slides away from the filter pipe. The lubricating oil in the filter pipe flows away, while the impurities in the collection tank are intercepted by the retaining net and will not be carried away by the flowing lubricating oil, completing the filtration of impurities such as sludge in the lubricating oil, improving the filtration effect, thereby improving the working stability of the speed reducer, and further improving the power transmission effect of the stirring tank.

[0018] 2. For a stirring tank for producing fluid coatings according to the present invention, at high speeds, the time interval for the electric push rod to extrude the lubricating oil for filtration each time increases, extending the filtration time and improving the cleanliness of the lubricating oil; at low speeds, the electric push rod quickly extrudes the lubricating oil, and the cover plate is continuously extruded by the lubricating oil and no longer seals the filter pipe. While the filter pipe centrifugally filters impurities from the lubricating oil, the flow rate of the lubricating oil increases, improving the replacement efficiency of the lubricating oil in the speed reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 is a perspective view of the present invention;

[0021] Figure 2 is a perspective view of the speed reducer;

[0022] Figure 3 is a cross-sectional view of the top and bottom of the speed reducer;

[0023] Figure 4 is a schematic diagram of the internal structure of the hydraulic cylinder;

[0024] Figure 5 is a state diagram of the rotating shaft driving the rotating rod and the rotating plate to rotate;

[0025] Figure 6 is a cross-sectional view of the collection tank;

[0026] Figure 7 is a state diagram of the slider pushing impurities into the filter tank.

[0027] In the figure: tank body 1, motor 11, speed reducer 12, hydraulic cylinder 13, piston 14, electric push rod 15, oil pipe 16, heat dissipation pipe 17, nozzle 18, fixed cylinder 2, fan 21, sprayer 22, fan blade 23, scraping blade 24, filter net 25, conducting wire 26, filter pipe 3, rotating shaft 31, rotating plate 32, collection tank 33, retaining net 34, cover plate 35, driving part 36, adsorption cotton 37, filter tank 38, rotating rod 4, slider 41, roller 42, sampling box 43, valve 44. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1:

[0030] To effectively solve the above problems, as shown in the accompanying drawings of the specification Figures 1 - 7 A fluid paint production stirring tank includes a tank body 1, a motor 11, a speed reducer 12, and a stirrer. The stirrer is installed inside the tank body 1, and the motor 11 and the speed reducer 12 are connected and installed on the tank body 1. The output end of the speed reducer 12 is connected to the stirrer; the output end of the motor 11 is connected to the input end of the speed reducer 12. When the input end of the speed reducer 12 rotates, after the speed reduction effect of the internal gear set, the output end of the speed reducer 12 transmits power to the stirrer, achieving the rotation effect of the stirrer with low speed and high torque; the speed reducer 12 includes:

[0031] A hydraulic cylinder 13, the hydraulic cylinder 13 is installed on one side of the speed reducer 12, and a piston 14 slides inside the hydraulic cylinder 13. One end of the piston 14 is connected to an electric push rod 15 arranged at the top of the hydraulic cylinder 13; oil pipes 16 are evenly arranged on the hydraulic cylinder 13. A heat dissipation pipe 17 is arranged on one side of the hydraulic cylinder 13. One of the two oil pipes 16 is connected to one end of the heat dissipation pipe 17, and the other oil pipe 16 is connected to the bottom of the speed reducer 12. The other end of the heat dissipation pipe 17 is connected to nozzles 18 evenly arranged on the inner top of the speed reducer 12, and the nozzles 18 face the gears inside the speed reducer 12; a central position of the arc-shaped bottom of the speed reducer 12 is connected to an oil pipe 16. A fan blade 23 is rotatably connected inside the oil pipe 16, and a scraping blade 24 is arranged at the top of the fan blade 23, and the scraping blade 24 contacts the bottom surface of the speed reducer 12;

[0032] A filter screen 25, the filter screen 25 is installed inside the hydraulic cylinder 13, and the filter screen 25 is located between the two oil pipes 16. A conducting wire 26 is arranged inside the hydraulic cylinder 13. One end of the conducting wire 26 is connected to the filter screen 25, and the other end is connected to the power supply in the stirring tank; a filter pipe 3 is arranged at the central position inside the filter screen 25, and the inner wall of the filter pipe 3 is serrated;

[0033] The electric push rod 15 is a conventional electric telescopic device, which is used to drive the piston 14 to extrude and suck the lubricating oil in the reduction gear 12 in the hydraulic cylinder 13; the fan 21 is a conventional electric-driven rotating device, which is used to rotate and blow air to the heat dissipation pipe 17; the fan blade 23 is a conventional part, that is: when the lubricating oil passes through the oil pipe 16 close to the reduction gear 12 by the suction of the hydraulic cylinder 13, the lubricating oil squeezes and passes through the fan blade 23, driving the fan blade 23 to rotate. The fan blade 23 drives the scraping blade 24 to rotate without contacting the gears and output shafts inside the reduction gear 12, and the nozzle 18 does not contact and affect the input shaft. The reduction gear 12 is a conventional L-type, that is, the input shaft is located at the top and the output shaft is located on one side, realizing the effect that the lubricating oil sinks to the bottom after passing through the internal gears of the reduction gear 12;

[0034] The output end of the motor 11 is connected to the input shaft at the top of the reduction gear 12 through a conventional transmission connection method, such as a coupling. The output end on one side of the reduction gear 12 is connected to the agitator through a conventional bevel gear meshing connection. For example: the tank 1 is used for the production and stirring of fluid coatings. If a more viscous coating is produced, the torque required by the agitator will increase. When the reduction gear 12 is directly connected to the agitator and works under a large torque for a long time, the rigid connection will cause deformation of the connection part or damage to the shaft body, etc. However, through the meshing transmission of the bevel gear, even under a large torque, only the bevel gear is more severely worn or damaged, and only the bevel gear meshing fittings need to be simply replaced, which is convenient to use; part of the bevel gear used for connection is located at the center of the top of the tank 1, and the reduction gear is located at a position deviating from the center of the top of the tank 1 to meet the actual installation requirements;

[0035] The oil pipe 16 is connected to the hydraulic cylinder 13 through a one-way valve. The bottom of the hydraulic cylinder 13 is located below the reduction gear 12, that is, the horizontal position of the reduction gear is higher than that of the hydraulic cylinder, which helps the lubricating oil flowing in the oil pipe 16 to be sucked into the hydraulic cylinder 13. Moreover, the oil pipe 16 between the hydraulic cylinder 13 and the reduction gear 12 is in an inclined state, reducing the accumulation of impurities and debris at the bent part and avoiding the blockage of the oil pipe 16 by the debris; the sprayer 22 is a conventional spraying device, and the sprayer 22 sprays the coolant prepared by the worker on the heat dissipation pipe, the hydraulic cylinder and the reduction gear for cooling treatment.

[0036] Specific working process: When the fluid paint is being stirred and produced in the mixing tank, the electric push rod 15 starts to drive the piston 14 to slide in the hydraulic cylinder 13. When the piston 14 moves away from the bottom of the hydraulic cylinder 13, lubricating oil is suctioned into the speed reducer 12 through the oil pipe 16. The lubricating oil flows in the oil pipe 16 near the speed reducer 12, squeezes and passes through the fan blades 23, driving the fan blades 23 to rotate. The fan blades 23 drive the scraping blades 24 to rotate and scrape the arc-shaped bottom wall of the speed reducer 12, scraping the sludge and friction debris and other impurities that have settled to the bottom. When the impurities move, they cooperate with the flow of the lubricating oil, so that the lubricating oil flushes the impurities into the oil pipe 16 and into the space between the filter screen 25 and the piston 14, reducing the residual amount of impurities in the speed reducer 12, improving the cleanliness of the speed reducer 12, and preventing the gear rotation from stirring the lubricating fluid, where the lubricating fluid surges and rolls up the impurities to contact parts such as gears, affecting the normal operation of the speed reducer 12, thereby improving the working stability of the speed reducer 12 and further improving the power transmission effect of the mixing tank; moreover, it can also cooperate with the flushing effect of the lubricating oil on the parts, shortening the residence time of the impurities in the speed reducer 12 and reducing the risk of the impurities affecting the parts of the speed reducer 12;

[0037] Subsequently, the electric push rod 15 drives the piston 14 to move close to the bottom of the hydraulic cylinder 13, and the piston 14 squeezes the lubricating oil through the filter screen 25 and the filter pipe 3; when the lubricating oil passes through the filter screen 25, the normally energizable filter screen 25 is energized through the conducting wire 26 to form a magnetic field to adsorb metals, and the metal debris in the lubricating oil is adsorbed by the filter screen 25; then, the lubricating oil enters the interior of the filter pipe 3. Due to the serrated inner wall of the filter pipe 3, the lubricating oil is intercepted when passing through it, intercepting the debris and sludge in the lubricating oil in the filter pipe 3, achieving the purpose of separating and filtering the impurities in the sludge, improving the filtering effect, thereby improving the cleanliness of the lubricating oil, improving the working stability of the speed reducer 12, and further improving the power transmission effect of the mixing tank;

[0038] After the lubricating oil passes through the filter pipe 3, it enters the heat dissipation pipe 17 through the oil pipe 16. During the flow of the lubricating oil in the heat dissipation pipe 17, the fan 21 rotates to blow air to the heat dissipation pipe 17 and at the same time blow air to the speed reducer 12, reducing the temperature of the lubricating fluid and the speed reducer 12. While achieving the dual cooling effect of air cooling and oil cooling, it improves the cleanliness of the lubricating fluid, thereby improving the working stability of the speed reducer 12 and further improving the power transmission effect of the mixing tank; moreover, since the fan 21 is located inside the fixed cylinder 2, the air suction and blowing directions of the fan 21 form a fixed route, increasing the stability of the air flow and preventing the external air flow or environmental factors from affecting the blowing route of the fan 21 and causing the wind direction to be unstable, further improving the working stability of the speed reducer 12;

[0039] In the case of a coating with low viscosity, in order to improve production efficiency, the rotation speed in the mixing tank is increased, and the reduction gear 12 is in a state of high rotation speed and low torque. In this state, the internal torque of the reduction gear 12 decreases, and the heat generation energy due to contact friction decreases, resulting in a lower heat dissipation requirement for the reduction gear 12 and a higher requirement for a low content of impurities in the lubricating oil. Because at high rotation speeds, the influence of impurities on the gears is greater than that of temperature, it is easy to cause instability of the gears at high rotation speeds; in the case of a coating with high viscosity, in order to ensure production quality, the rotation speed is reduced and the torque is increased, and the reduction gear 12 is in a state of low rotation speed and high torque. In this state, the internal torque of the reduction gear 12 increases, and the heat generation energy due to contact friction increases, resulting in a higher heat dissipation requirement for the reduction gear 12 and a lower requirement for a low content of impurities in the lubricating oil. Because at low rotation speeds, the influence of temperature on the gears is greater than that of impurities, it is easy to cause the situation that the gears are damaged at high torque due to insufficient heat dissipation of the gears;

[0040] Therefore, at high rotation speeds, the amount of lubricating oil in the reduction gear 12 is reduced to avoid excessive lubricating oil generating rotational resistance; the suction speed of the hydraulic cylinder 13 is reduced to slow down the flow speed of the lubricating oil and increase the filtration time, thereby improving the filtration effect; as described above, the lubricating oil is sprayed out from the nozzle 18 after passing through the heat dissipation pipe 17, and the nozzle 18 sprays the lubricating oil onto the internal parts of the reduction gear 12 in a large-area spraying manner. On the one hand, it reduces the situation of insufficient lubrication effect and insufficient heat dissipation caused by less lubricating liquid and insufficient contact, and improves the working stability of the reduction gear 12; on the other hand, by filtering the lubricating oil, the amount of impurities in the lubricating oil is reduced, the risk of blockage of the nozzle 18 is reduced, and the spray cooling effect is improved;

[0041] At low rotation speeds, the amount of lubricating oil in the reduction gear 12 increases, and the gears in the reduction gear 12 are immersed in the lubricating oil. The worker removes the nozzle 18 to eliminate the effect of the nozzle 18 on the flow resistance of the lubricating liquid, accelerate the flow speed of the lubricating liquid in the heat dissipation pipe 17, thereby accelerating the replacement speed of the lubricating liquid in the reduction gear 12, and at the same time increasing the air volume to improve the cooling effect of the lubricating liquid, thereby improving the heat dissipation effect on the reduction gear 12, and further improving the power transmission effect of the mixing tank;

[0042] Through the above, when the mixing tank is in different working states, the reduction gear 12 can adopt different methods according to the actual situation to maintain the power transmission effect of the mixing tank, thereby improving the convenience of use of the mixing tank.

[0043] Embodiment 2:

[0044] On the basis of the first embodiment, a fixed cylinder 2 is provided on one side of the hydraulic cylinder 13, and the heat dissipation pipe 17 is located between the hydraulic cylinder 13 and the fixed cylinder 2; a fan 21 is provided at the center of the fixed cylinder 2, and atomizers 22 are evenly provided on the inner wall of the fixed cylinder 2; a rotating shaft 31 is installed in the filter pipe 3, and a rotating plate 32 is provided on the rotating shaft 31, and one side of the rotating plate 32 contacts the serrated inner wall of the filter pipe 3; a collecting groove 33 is formed on the inner wall of the filter pipe 3, and a net 34 is provided at the opening of the collecting groove 33, and the net 34 covers the part of the collecting groove 33 away from the piston 14, and the part of the collecting groove 33 close to the piston 14 is in an open state; a cover plate 35 is sleeved on the rotating shaft 31, and the cover plate 35 is slidably connected to the rotating shaft 31 through a spring, and one side of the cover plate 35 seals the end of the filter pipe 3 away from the piston 14; one end of the rotating shaft 31 penetrates through one end of the hydraulic cylinder 13 and is located outside, and a driving member 36 is provided at one end of the hydraulic cylinder 13 and is connected to one end of the rotating shaft 31; the driving member 36 is a conventional rotating device such as a motor;

[0045] Adsorbent cotton 37 is evenly provided at the outer edge of the outer ring of the filter net 25, and the adsorbent cotton 37 is distributed annularly around the axis of the filter net 25. The adsorbent cotton 37 is located at the connection between the filter net 25 and the inner wall of the hydraulic cylinder 13, and filter grooves 38 are evenly formed in the adsorbent cotton 37; a rotating rod 4 is provided at one end of the rotating shaft 31, and the bottom of the rotating rod 4 contacts the surface of the filter pipe 3 close to the piston 14. The surface of the filter net 25 close to the piston 14 covers the filter pipe 3, and the lubricating oil enters the filter pipe 3 through the mesh holes in the filter net 25;

[0046] A slider 41 is slidably connected to the filter net 25 through a spring, and a roller 42 is unidirectionally rotatably connected to the bottom of the slider 41; one side of the slider 41 contacts the surface of the rotating rod 4, and the rotating rod 4 is arc-shaped; the part of the filter net 25 close to the inner wall of the hydraulic cylinder 13 is made of plastic material, and the part of the filter net 25 close to the inner wall of the hydraulic cylinder 13 is located above the filter groove 38; the installation of the filter net 25, the slider 41 and the roller 42 is as follows: a part of the filter net 25 is truncated to form a groove, the two ends of the groove are located at the center and the edge of the filter net 25, a concave channel steel is connected in the groove, and the slider 41 and the roller 42 move in the channel steel. While completing the work, the channel steel can also provide support for the filter net 25, that is, a channel steel is connected to the filter net 25; and when cleaning the metal debris on the filter net 25, the worker can cut off the power of the filter net 25 and stop the adsorption of the filter net 25 on the metal debris for a short time;

[0047] A sampling box 43 is provided on the surface of the hydraulic cylinder 13, and one end of the sampling box 43 extends into the filter groove 38, and the other end is located outside the hydraulic cylinder 13; a valve 44 is provided in the sampling box 43, and a detector is provided inside the sampling box 43 located outside the hydraulic cylinder 13, and the detector is used to detect the quality of the lubricating oil; the detector is a conventional instrument for detecting impurities in lubricating oil;

[0048] The heat dissipation pipe 17 is evenly provided with depressions, and a coolant is stored in the depressions.

[0049] Specific working process: When the lubricating fluid passes through the filter pipe 3, the driving member 36 is activated. The driving member 36 drives the rotating shaft 31 to rotate, and the rotating shaft 31 drives the rotating plate 32 to rotate. At this time, the cover plate 35 is in close contact with one end of the filter pipe 3 under the action of the spring, sealing one end of the filter pipe 3; the lubricating fluid in the filter pipe 3 no longer flows, so that the rotating plate 32 drives the lubricating fluid to rotate. Since the lubricating oil is just pumped out of the speed reducer 12 at this time and its temperature is relatively high and its fluidity is good, the centrifugal effect on the lubricating oil during rotation is better than that at normal temperature or in a cooled state, and the impurities in the lubricating oil are thrown into the gap between the serrated inner walls of the filter pipe 3; when the rotating plate 32 rotates, one side of the rotating plate 32 scrapes the impurities and scrapes the impurities to the opening part of the collection tank 33 close to the piston 14, and enters the collection tank 33 through this opening for collection; subsequently, the electric push rod 15 changes from the static state to the state of squeezing the hydraulic oil. After the lubricating oil in the filter pipe 3 is squeezed, the cover plate 35 is pushed open, and the cover plate 35 slides away from the filter pipe 3. The lubricating oil in the filter pipe 3 flows away, while the impurities in the collection tank 33 are intercepted by the net 34 and will not be taken away by the flowing lubricating oil, completing the filtration of impurities such as sludge in the lubricating oil, improving the filtration effect, thereby improving the working stability of the speed reducer 12, and further improving the power transmission effect of the mixing tank;

[0050] At high speeds, the time interval for the electric push rod 15 to squeeze the lubricating oil for filtration each time increases, prolonging the filtration time and improving the cleanliness of the lubricating oil; at low speeds, the electric push rod 15 quickly squeezes the lubricating oil, and the cover plate 35 is continuously squeezed by the lubricating oil and no longer seals the filter pipe 3. While the filter pipe 3 centrifugally filters the impurities in the lubricating oil, the flow rate of the lubricating oil increases, improving the replacement efficiency of the lubricating oil in the speed reducer 12;

[0051] Further, to ensure that the nozzle 18 continuously sprays lubricating oil at high speeds, an adsorption cotton 37 is provided. The adsorption cotton 37 is a material commonly used for adsorbing sludge, such as activated clay, silica gel, etc. An adsorption material is added to the conventional filter cotton to form the adsorption cotton 37. When the cover plate 35 seals the filter pipe 3, the piston 14 slowly squeezes the lubricating oil. At this time, the lubricating oil is not enough to push open the cover plate 35. The lubricating oil enters the adsorption cotton 37 through the filter groove 38. The lubricating oil is squeezed and passes through the adsorption cotton 37 to form a pressure filtration effect. Also, the lubricating oil enters the interior of the adsorption cotton 37 through the filter groove 38. The opening of the filter groove 38 makes the surface of the adsorption cotton 37 form a fluctuating wave shape, increasing the contact area and improving the filtration effect, thereby improving the cleanliness of the lubricating oil. Moreover, the sludge impurities in the lubricating oil are filtered and collected in the filter groove 38, preventing the impurities from flowing around in the hydraulic cylinder 13, thus improving the filtration effect, enhancing the working stability of the speed reducer 12, and further improving the power transmission effect of the mixing tank. Since the cooling efficiency of the lubricating oil is different from that of impurities such as sludge, too many impurities will affect the cooling effect of the lubricating oil. Reducing the impurities in the lubricating oil helps reduce the influence of impurities on the heat dissipation of the lubricating oil. After the filtration time of the lubricating oil in the filter pipe 3 is reached, the piston 14 suddenly increases the extrusion force, and the cover plate 35 is pushed open by the lubricating oil to open the filter pipe 3.

[0052] The rotating shaft 31 drives the rotating rod 4 to rotate. During the rotation of the rotating rod 4, it scrapes the surface of the filter net 25, deflecting the impurities adsorbed and filtered by the filter net 25 away from the filter pipe 3, reducing the amount of impurities entering the filter pipe 3. While improving the purification effect of the lubricating oil, it cleans the filter net 25 and enhances the filtering ability of the filter net 25. Also, since the rotating rod 4 is arc-shaped, the rotation of the rotating rod 4 is like a propeller stirring the lubricating oil in the hydraulic cylinder 13. The lubricating oil forms a rotation under long-term stirring. Through the centrifugal action, the impurities are flung to contact the inner wall of the hydraulic cylinder 13. The piston 14 scrapes the impurities on the inner wall of the hydraulic cylinder 13 onto the adsorption cotton 37 and collects them through the filter groove 38, improving the filtration effect of the lubricating oil. Moreover, before the lubricating oil enters the filter pipe 3, it rotates in the hydraulic cylinder 13 for preliminary filtration. When passing through the filter pipe 3, the diameter of the filter pipe 3 is smaller than that of the hydraulic cylinder 13, resulting in a small amount of lubricating oil in the filter pipe 3. The small amount of lubricating oil, combined with the effect of extending the filtration time, further improves the cleanliness of the lubricating oil, thereby enhancing the working stability of the speed reducer 12 and further improving the power transmission effect of the mixing tank. Additionally, the fewer impurities in the lubricating oil, the less the influence of blockage by impurities during flow in the pipeline. The improvement of the fluidity of the lubricating oil contributes to the internal circulation of the speed reducer and further improves the cooling efficiency when the speed reducer drives the agitator.

[0053] When the rotating rod 4 rotates, the arc surface of the rotating rod 4 contacts and presses the slider 41. The slider 41 is pushed to move along the surface of the filter screen 25 towards the adsorption cotton 37. The slider 41 drives the roller 42 arranged to rotate unidirectionally to move. At this time, the roller 42 is fixed and does not rotate. As it moves, it scrapes the surface of the filter screen 25, scraping the impurities filtered by it above the filter tank 38. At this time, the impurities are on the plastic part of the filter screen 25, and the metal part of the filter screen 25 no longer adsorbs the impurities. When the lubricating oil passes through the adsorption cotton 37, the lubricating oil drives the impurities scraped from the filter screen 25 into the filter tank 38, completing the collection of impurities on the filter screen 25, improving the cleanliness in the hydraulic cylinder 13, and reducing the pollution of the lubricating oil due to excessive floating impurities in the hydraulic cylinder 13; after the rotating rod 4 moves away from the slider 41, the slider 41 is reset under the influence of the spring. At this time, the roller 42 rolls on the filter screen 25 to avoid pushing the subsequently adsorbed impurities towards the rotating shaft 31; moreover, during the cleaning process, the lubricating oil can fully lubricate the rotating rod and the slider, reducing the friction force;

[0054] When the reducer 12 works for a long time, the worker needs to detect the quality of the lubricating oil in the reducer 12. The worker opens the valve 44. While the lubricating oil enters the filter tank 38, it also enters the sampling box 43, flushing the sludge and metal impurities into the interior of the sampling box 43; subsequently, the worker closes the valve 44 and allows the lubricating oil to stand. The capacity of the sampling box 43 can be preset in advance. After the impurities precipitate, on the one hand, when not detecting, according to the precipitation amount of the impurities in the sampling box and the capacity of the sampling box 43, the impurities contained in the unit capacity of the lubricating oil can be obtained, providing data for the evaluation of the lubricating oil quality; on the other hand, when detecting, the detector quickly detects the impurities in the lubricating oil, improving the convenience of using the mixing tank;

[0055] One end of the sprayer 22 is externally connected to a water tank, continuously supplying coolant to the fan 21 or facilitating the replacement of the coolant at any time. The coolant can be a solution such as alcohol or water. The coolant is sprayed onto the fan 21 in an atomized state through the sprayer 22, and then blown towards the radiating pipe 17 by the fan 21. On the one hand, it reduces the temperature of the fan 21 and the temperature of the air blown by the fan 21 towards the radiating pipe 17. On the other hand, part of the coolant flows and blows towards the surfaces of the radiating pipe 17 and the housing of the reducer 12, cooling and lowering the temperature by contacting the radiating pipe 17, improving the cooling effect of the lubricating oil, and thus improving the working stability of the reducer 12;

[0056] Moreover, during the process of the atomized coolant being blown towards the radiating pipe 17 by the wind, the surface area of the atomized coolant increases, and the evaporation speed accelerates, thereby absorbing a large amount of heat, further reducing the blowing temperature, improving the cooling effect of the radiating pipe 17, and thus improving the cooling effect of the lubricating oil;

[0057] At high rotational speeds, the filtering effect needs to be greater than the cooling effect. By increasing the air output and coordinating with the high rotational speed state, the lubricating fluid can extend the blowing time it receives during the slow flow process, thereby reducing the temperature. At low rotational speeds, the cooling effect needs to be greater than the filtering effect. The flow rate of the lubricating oil is fast, and the blowing temperature is reduced by spraying to quickly reduce the temperature of the lubricating oil within a short period of time.

[0058] During spraying, the atomized alcohol volatilizes leaving only water, and under the action of the blowing, it contacts and adheres to the surface of the heat dissipation pipe 17. As the water increases, water droplets are formed and flow vertically down along the heat dissipation pipe 17. The water droplets flow into the recess and mix with the coolant. The coolant reacts with water and absorbs heat, further reducing the temperature of the heat dissipation pipe 17. Moreover, the recesses on the heat dissipation pipe increase the contact area between the heat dissipation pipe and the lubricating oil, further extending the contact heat dissipation time, thereby reducing the temperature of the lubricating oil, improving the working stability of the speed reducer 12, and further enhancing the power transmission effect of the mixing tank.

[0059] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A stirring tank for fluid coating production, comprising a tank body (1), a motor (11), a speed reducer (12) and a stirrer; characterized in that, The speed reducer (12) includes: A hydraulic cylinder (13), which is installed on one side of the speed reducer (12). A piston (14) slides in the hydraulic cylinder (13), and one end of the piston (14) is connected to an electric push rod (15) arranged at the top of the hydraulic cylinder (13). The hydraulic cylinder (13) is evenly provided with oil pipes (16). A heat dissipation pipe (17) is arranged on one side of the hydraulic cylinder (13). One of the two oil pipes (16) is connected to one end of the heat dissipation pipe (17), and the other oil pipe (16) is connected to the bottom of the speed reducer (12). The other end of the heat dissipation pipe (17) is connected to nozzles (18) evenly arranged at the inner top of the speed reducer (12). An oil pipe (16) is connected to the central position of the arc-shaped bottom of the speed reducer (12). A fan blade (23) is rotatably connected in the oil pipe (16), and a scraping blade (24) is arranged at the top of the fan blade (23). A filter screen (25), which is installed in the hydraulic cylinder (13) and is located between the two oil pipes (16). A conducting wire (26) is arranged in the hydraulic cylinder (13), and the conducting wire (26) is connected to the filter screen (25). A filter pipe (3) is arranged at the central position inside the filter screen (25), and the inner wall of the filter pipe (3) is serrated. A fixed cylinder (2) is arranged on one side of the hydraulic cylinder (13), and the heat dissipation pipe (17) is located between the hydraulic cylinder (13) and the fixed cylinder (2). A fan (21) is arranged at the center inside the fixed cylinder (2), and sprayers (22) are evenly arranged on the inner wall of the fixed cylinder (2). A rotating shaft (31) is installed in the filter pipe (3), and a rotating plate (32) is arranged on the rotating shaft (31). One side of the rotating plate (32) contacts the serrated inner wall of the filter pipe (3). A collection groove (33) is formed on the inner wall of the filter pipe (3), and a retaining net (34) is arranged at the opening part of the collection groove (33). The retaining net (34) covers the part of the collection groove (33) far from the piston (14), and the part of the collection groove (33) close to the piston (14) is in an open state. A cover plate (35) is sleeved on the rotating shaft (31), and the cover plate (35) is slidably connected to the rotating shaft (31) through a spring. One side of the cover plate (35) seals one end of the filter pipe (3) far from the piston (14). One end of the rotating shaft (31) penetrates through one end of the hydraulic cylinder (13) and is located outside. A driving part (36) is arranged at one end of the hydraulic cylinder (13) and is connected to one end of the rotating shaft (31). Adsorbent cotton (37) is evenly arranged at the outer edge of the filter screen (25), and the adsorbent cotton (37) is distributed annularly around the axis of the filter screen (25). The adsorbent cotton (37) is located at the connection between the filter screen (25) and the inner wall of the hydraulic cylinder (13), and filter grooves (38) are evenly formed in the adsorbent cotton (37).

2. A stirring tank for fluid coating production according to claim 1, characterized in that: A rotating rod (4) is arranged at one end of the rotating shaft (31). The bottom of the rotating rod (4) contacts the surface of the filter pipe (3) close to the piston (14). The surface of the filter screen (25) close to the piston (14) covers the filter pipe (3), and lubricating oil enters the filter pipe (3) through the meshes in the filter screen (25).

3. A fluid paint production stirring tank according to claim 2, characterized in that: A slider (41) is slidably connected in the filter net (25) through a spring, and a roller (42) is rotatably connected to the bottom of the slider (41) in a one-way manner; one side of the slider (41) contacts the surface of the rotating rod (4), and the rotating rod (4) is arc-shaped.

4. A fluid paint production stirring tank according to claim 3, characterized in that: The part of the filter net (25) close to the inner wall of the hydraulic cylinder (13) is made of plastic, and the part of the filter net (25) close to the inner wall of the hydraulic cylinder (13) is located above the filter groove (38).

5. A fluid paint production stirring tank according to claim 4, characterized in that: A sampling box (43) is provided on the surface of the hydraulic cylinder (13), one end of the sampling box (43) extends into the filter groove (38), and the other end is located outside the hydraulic cylinder (13).

6. A stirring tank for fluid coating production according to claim 5, characterized in that: A valve (44) is provided in the sampling box (43), and a detector is provided inside the sampling box (43) located outside the hydraulic cylinder (13). The detector is used to detect the quality of the lubricating oil.

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