Urea stirring device for vehicle

Abstract

The utility model relates to the technical field of adblue preparation, and discloses an adblue stirring device which comprises a preparation tank, a stirring assembly, a grinding mechanism and a discharging mechanism, the top of the preparation tank is fixedly connected with a protective shell, the side face of the protective shell is fixedly connected with a motor, and the stirring assembly comprises an upper fluted disc and a lower fluted disc. A first gear is connected between the upper fluted disc and the lower fluted disc in a meshed mode and is in transmission connection with a rotating shaft of the motor through a first transmission belt, the bottom of the upper fluted disc is fixedly connected with a solid stirring shaft, the bottom of the lower fluted disc is fixedly connected with a hollow stirring shaft, and the lower fluted disc and the hollow stirring shaft are both rotationally connected to the outer side of the solid stirring shaft. First stirring rods are fixedly connected to the surface of the solid stirring shaft at equal intervals. By using the roll shaft and the second gear, the second gear drives the roll shaft to rotate, urea particles can be crushed, the problem that the urea particles are large and are not easy to dissolve is solved, the dissolution rate of urea is increased, and the working efficiency is improved.

Description

Technical Field

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

[0002] Automotive urea is an essential product for heavy-duty diesel vehicles to meet the National IV emission standards. It purifies the exhaust gas of heavy-duty diesel vehicles. Automotive urea refers to a urea aqueous solution with a urea solution concentration of 32.5% and a solvent of ultrapure water. The raw materials are special raw materials for automotive urea and ultrapure water.

[0003] At present, a Chinese patent discloses a vehicle urea liquid preparation device, and its application number is CN2023236173243. In the technical solution of this application, through the coordination of the urea feeding port, the feeding port, and the feeding channel, the urea particles can be dispersedly fed through several feeding channels respectively, so as to avoid the accumulation of urea particles at the bottom of the preparation tank after feeding and affect the subsequent stirring and mixing effect. In addition, the dispersed feeding method can more easily promote the rapid dissolution of urea particles and liquid, saving the preparation time of urea solution.

[0004] In combination with the above-disclosed technical solution, since the urea raw material may agglomerate or have large particles due to environmental factors during storage, it is difficult to dissolve it directly in the preparation tank, which increases the stirring time and reduces the work efficiency. In addition, during the stirring process, the urea is easy to adhere to the inner wall of the preparation tank, reducing the quality of the urea water fusion liquid. Therefore, we propose a vehicle urea stirring device to solve this problem. Utility Model Content

[0005] In order to solve the technical problem of urea configuration, the utility model provides a vehicle urea stirring device.

[0006] The utility model adopts the following technical scheme: a vehicle urea stirring device comprises a preparation tank, a stirring assembly, a crushing mechanism and a feeding mechanism, the top of the preparation tank is fixedly connected with a protective shell, and the side of the protective shell is fixedly connected with a motor.

[0007] The stirring assembly includes an upper toothed disc and a lower toothed disc, a first gear is meshingly connected between the upper toothed disc and the lower toothed disc, the first gear is connected to the rotating shaft of the motor through a first transmission belt, a solid stirring shaft is fixedly connected to the bottom of the upper toothed disc, a hollow stirring shaft is fixedly connected to the bottom of the lower toothed disc, the lower toothed disc and the hollow stirring shaft are both rotatably connected to the outside of the solid stirring shaft, first stirring rods are fixedly connected to the surface of the solid stirring shaft at equal intervals, scrapers are fixedly connected to both sides of the hollow stirring shaft, second stirring rods are fixedly connected to the sides of the scrapers, and the outside of the hollow stirring shaft is rotatably connected to the inner wall of the preparation tank through a bearing.

[0008] The crushing mechanism includes two rollers and a discharge box. The bottom of the discharge box is connected to the preparation tank. A discharge funnel is installed above the inner wall of the discharge box. The roller is rotatably connected to the bottom of the inner wall of the discharge box. A discharge shaft is fixedly connected to the middle of the inner wall of the discharge box. One end of the discharge shaft is connected to the central axis of the first gear. The central axis on one side of the roller passes through the inner wall of the discharge box and is fixedly connected to the second gear. The second gear on the left is connected to the discharge shaft through a second transmission belt, and the two second gears are meshed.

[0009] The feeding mechanism comprises a feeding barrel, the top of which is connected to the preparation tank, a filter screen is installed in the middle of the inner side of the feeding barrel, a sewage pipe is installed on the side of the feeding barrel and is located above the filter screen, and a ball valve is installed at the bottom of the inner side of the feeding barrel.

[0010] As a further improvement of the above solution, rubber plates are arranged at equal intervals on the side of the feed shaft to distribute the urea and prevent blockage.

[0011] As a further improvement of the above solution, protrusions are arranged at equal intervals on the surface of the roller to crush the urea.

[0012] As a further improvement of the above solution, the discharge funnel is composed of two inclined plates, and the discharge shaft is located below the middle of the two inclined plates to guide urea and ultrapure water.

[0013] As a further improvement of the above solution, the first stirring rod and the second stirring rod are arranged alternately to fully blend the urea and water in the configuration tank.

[0014] As a further improvement of the above solution, a protective cover is fixedly connected to the side of the discharge box away from the protective shell, and the second gear and the second transmission belt are both arranged in the protective cover to protect the second gear and the second transmission belt.

[0015] As a further improvement of the above solution, a spiral blade is fixedly connected to the bottom of the solid stirring shaft, and the bottom of the spiral blade is rotatably connected to the filter screen to prevent impurities from clogging the filter screen.

[0016] As a further improvement of the above solution, the scrapers are U-shaped and one end of the bottom of the two scrapers is rotatably connected to the solid stirring shaft through an arc block, so that the scrapers are fixed more stably.

[0017] The two scrapers are arranged at an angle and contact the inner wall of the preparation tank, so as to scrape off the urea on the inner wall of the preparation tank and no urea is easily left on the scrapers.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The utility model uses a roller shaft and a second gear, so that the second gear drives the roller shaft to rotate, and can crush urea particles, thereby solving the problem that urea particles are large and difficult to dissolve, accelerating the dissolution rate of urea and improving work efficiency.

[0020] 2. The utility model uses a scraper to scrape and dissolve the urea on the inner wall of the preparation tank, thereby solving the problem that urea is easily adhered to the inner wall of the preparation tank and improving the quality of the urea-water fusion liquid.

[0021] 3. After the particles of the urea raw material are dissolved, there will be some impurities, which will affect the urea discharge effect. During use, through the use of the filter and the spiral blades, the filter can filter the impurities while the spiral blades can stir the impurities to prevent the impurities from affecting the efficiency of urea discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the new overall cross-section structure;

[0024] Figure 3 It is a schematic diagram of the structure of the roller shaft, the blanking shaft and the first gear;

[0025] Figure 4 It is a schematic diagram of the structure of the feeding barrel, the solid stirring shaft and the spiral blades;

[0026] Figure 5 Schematic diagram of the hollow stirring shaft and scraper structure.

[0027] Description of main symbols:

[0028] 1. Preparation tank; 2. Protective shell; 3. Discharge box; 4. Protective cover; 5. Motor; 6. Discharge hopper; 7. Roller; 8. Scraper; 9. Second stirring rod; 10 First stirring rod; 11. Hollow stirring shaft; 12. Solid stirring shaft; 13. First gear; 14. Spiral blade; 15. Upper gear disc; 16. Lower gear disc; 17. Discharge barrel; 18. Second gear; 19. Discharge shaft. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0030] Embodiment 1:

[0031] Please combine Figure 1-5A vehicle urea stirring device of this embodiment includes a preparation tank 1 for loading urea aqueous solution, a protective shell 2 for protecting the stirring assembly is fixedly connected to the top of the preparation tank 1, and a motor 5 for driving a first transmission belt is fixedly connected to the side of the protective shell 2.

[0032] A stirring assembly for stirring urea and water, the stirring assembly includes driving an upper toothed disc 15 and a lower toothed disc 16, the upper toothed disc 15 and the lower toothed disc 16 are meshedly connected with a first gear 13 for driving a rubber plate to rotate, driving a solid stirring shaft 12 to rotate the upper toothed disc 15 and driving a hollow stirring shaft 11 to rotate the lower toothed disc 16 to rotate, the first gear 13 is connected to the central axis of the motor 5 through a first transmission belt, the bottom of the upper toothed disc 15 is fixedly connected to a solid stirring shaft 12 for driving a first stirring rod 10 to rotate, the bottom of the lower toothed disc 16 is fixedly connected to a hollow stirring shaft 11 for driving a second stirring rod 9 to rotate, the first stirring rod 10 and the second stirring rod 9 are staggered, and the lower toothed disc 15 is meshed with each other. 16 and the hollow stirring shaft 11 are both rotatably connected to the outside of the solid stirring shaft 12, the lower toothed disc 16 and the inner side of the hollow stirring shaft 11 are rotatably connected to the solid stirring shaft 12 through a rotating shaft, and second stirring rods 10 are evenly spaced on the side of the middle part of the solid stirring shaft 12, and both sides of the hollow stirring shaft 11 are fixedly connected with scrapers 8 for scraping off the stubborn urea on the inner wall of the preparation tank 1, the scrapers 8 are U-shaped and one end of the bottom of the two scrapers 8 is rotatably connected to the solid stirring shaft 12 through an arc block, the two scrapers 8 are inclined and contact the inner wall of the preparation tank 1, and the side of the scraper 8 is fixedly connected with a second stirring rod 9, and the outer side of the hollow stirring shaft 11 is rotatably connected to the inner wall of the preparation tank 1 through a bearing.

[0033] The grinding mechanism for crushing urea includes two rollers 7 for crushing urea and a feed box 3. The surface of the roller 7 is provided with protrusions at equal intervals. A protective cover 4 is fixedly connected to the side of the feed box 3 away from the protective shell 2. The second gear 18 and the second transmission belt are both arranged in the protective cover 4. A spiral blade 14 is fixedly connected to the bottom of the solid stirring shaft 12. The bottom of the spiral blade 14 is rotatably connected to the filter screen. The bottom of the feed box 3 is connected to the preparation tank 1. A feed hopper 6 for guiding urea and water is installed above the inner wall of the feed box 3. The feed hopper 6 consists of two pieces. The feeding box 3 is composed of inclined plates, the feeding shaft 19 is located below the middle of the two inclined plates, the roller shaft 7 is rotatably connected to the bottom of the inner wall of the feeding box 3, the middle of the inner wall of the feeding box 3 is fixedly connected with the feeding shaft 19, and the side of the feeding shaft 19 is evenly spaced with rubber plates to prevent feed blockage, one end of the feeding shaft 19 is connected to the central axis of the first gear 13, the central axis of one side of the roller shaft 7 passes through the inner wall of the feeding box 3 and is fixedly connected with the second gear 18 that drives the roller shaft 7 to rotate, the second gear 18 on the left side is connected to the feeding shaft 19 through a second transmission belt, and the two second gears 18 are meshed with each other.

[0034] The discharge mechanism for discharging impurities and urea water fusion liquid comprises a discharge barrel 17 for discharging impurities and urea water fusion, the top of the discharge barrel 17 is connected with the preparation tank 1, a filter screen for filtering impurities is installed in the middle of the inner side of the discharge barrel 17, a sewage pipe for discharging impurities is installed on the side of the discharge barrel 17 and is located above the filter screen, and a ball valve is installed at the bottom of the inner side of the discharge barrel 17.

[0035] The implementation principle of a vehicle urea stirring device in the embodiment of the present application is as follows: start the motor 5, pour urea and water into the discharge box 4, drive the first transmission belt through the motor 5 to drive the first gear 13 to rotate, drive the discharge shaft 19 to rotate through the rotation of the first gear 13, drive the rubber plate to rotate through the rotation of the discharge shaft 19, drive the second transmission belt to rotate through the rotation of the discharge shaft 19, drive the second gear 18 on the left side to rotate, drive the second gear 18 on the right side to rotate through the rotation of the second gear 18, drive the two rollers 7 to rotate through the rotation of the rubber plate and the rollers, and crush the urea at the lower roller 7 while the urea and water are being fed down.

[0036] The first gear 13 is rotated to drive the lower toothed disc 15 and the lower toothed disc 16 to rotate in both directions. The lower toothed disc 15 and the lower toothed disc 16 are rotated to drive the solid stirring shaft 10 and the hollow stirring shaft 11 to rotate in both directions. The solid stirring shaft 12 and the hollow stirring shaft 11 are rotated to drive the first stirring rod 10 and the scraper 8 to rotate in both directions. The rotation of the scraper 8 drives the second stirring rod 9 to rotate. The rotation of the scraper 8 can scrape off the stubborn urea on the inner wall of the configuration tank 1. Since the cover plate 8 is inclined, it is difficult for urea to remain on the surface of the scraper 8. The urea-water fusion liquid inside the configuration tank 1 is stirred by the rotation of the first stirring rod 10 and the second stirring rod 9. Since the lower toothed disc 15 and the lower toothed disc 16 rotate in both directions, the first stirring rod 10 and the second stirring rod 9 rotate in both directions, so that the urea-water fusion liquid can be fully stirred.

[0037] When unloading is required, the motor 5 is kept running and the ball valve is opened. Due to the use of the filter, impurities and pure urea fusion liquid can be discharged separately. The spiral blade 14 is driven to rotate by the solid stirring shaft 12. While unloading, the spiral blade 14 can transmit the impurities spirally upward to prevent the filter from being blocked. After the urea water fusion liquid is unloaded, the motor 5 is turned off and the sewage pipe is opened to remove the impurities.

[0038] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A vehicle urea stirring device, characterized in that: include: A preparation tank (1), wherein a protective shell (2) is fixedly connected to the top of the preparation tank (1), and a motor (5) is fixedly connected to the side of the protective shell (2); A stirring assembly, the stirring assembly comprising an upper toothed disc (15) and a lower toothed disc (16), wherein a first gear (13) is meshedly connected between the upper toothed disc (15) and the lower toothed disc (16), wherein the first gear (13) is transmission-connected to a rotating shaft of a motor (5) via a first transmission belt, wherein a solid stirring shaft (12) is fixedly connected to the bottom of the upper toothed disc (15), wherein a hollow stirring shaft (11) is fixedly connected to the bottom of the lower toothed disc (16), wherein both the lower toothed disc (16) and the hollow stirring shaft (11) are rotationally connected to the outer side of the solid stirring shaft (12), wherein first stirring rods (10) are fixedly connected to the surface of the solid stirring shaft (12) at equal intervals, wherein scrapers (8) are fixedly connected to both sides of the hollow stirring shaft (11), wherein a second stirring rod (9) is fixedly connected to the side of the scraper (8), and wherein the outer side of the hollow stirring shaft (11) is rotationally connected to the inner wall of the preparation tank (1) via a bearing; A crushing mechanism, the crushing mechanism comprising two rollers (7) and a material discharge box (3), the bottom of the material discharge box (3) being connected to the preparation tank (1), a material discharge funnel (6) being installed above the inner wall of the material discharge box (3), the roller (7) being rotatably connected to the lower part of the inner wall of the material discharge box (3), a material discharge shaft (19) being fixedly connected to the middle part of the inner wall of the material discharge box (3), one end of the material discharge shaft (19) being connected to the central axis of the first gear (13), the central axis of one side of the roller (7) passing through the inner wall of the material discharge box (3) being fixedly connected to a second gear (18), the second gear (18) on the left side being transmission-connected to the material discharge shaft (19) through a second transmission belt, and the two second gears (18) being meshed with each other; A material discharge mechanism, the material discharge mechanism comprises a material discharge barrel (17), the top of the material discharge barrel (17) is connected to the preparation tank (1), a filter screen is installed in the middle of the inner side of the material discharge barrel (17), a sewage discharge pipe is installed on the side of the material discharge barrel (17) and is located above the filter screen, and a ball valve is installed at the bottom of the inner side of the material discharge barrel (17).

2. A vehicle urea stirring device as claimed in claim 1, characterized in that: Rubber plates are arranged at equal intervals on the side of the unloading shaft (19).

3. The vehicle urea stirring device according to claim 1, characterized in that: The surface of the roller shaft (7) is provided with protrusions at equal intervals.

4. The vehicle urea stirring device according to claim 1, characterized in that: The discharge hopper (6) is composed of two inclined plates, and the discharge shaft (19) is located below the middle of the two inclined plates.

5. The vehicle urea stirring device according to claim 1, characterized in that: The first stirring rod (10) and the second stirring rod (9) are arranged alternately.

6. The vehicle urea stirring device according to claim 1, characterized in that: A protective cover (4) is fixedly connected to the side of the unloading box (3) away from the protective shell (2), and the second gear (18) and the second transmission belt are both arranged in the protective cover (4).

7. The vehicle urea stirring device according to claim 1, characterized in that: The bottom of the solid stirring shaft (12) is fixedly connected with a spiral blade (14), and the bottom of the spiral blade (14) is rotatably connected to the filter screen.

8. The vehicle urea stirring device according to claim 1, characterized in that: The scrapers (8) are U-shaped and one end of the bottom of the two scrapers (8) is rotatably connected to the solid stirring shaft (12) through an arc block; The two scrapers (8) are arranged at an angle and are in contact with the inner wall of the preparation tank (1).

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