Concrete raw material mixing device

Abstract

The utility model relates to the technical field of concrete production, in particular to a concrete raw material mixing device which comprises a mixing cylinder, a first rotating hole is formed in the bottom of the mixing cylinder, a stirring structure is arranged in the first rotating hole, the stirring structure comprises a rotating cylinder and a rotating rod, the whole rotating rod is rotationally installed in the rotating cylinder, one end of the rotating cylinder is rotationally installed in the first rotating hole, a plurality of equally-spaced scraping plates are fixed to one end of the rotating rod, and a plurality of stirring plates are fixed to the outer side of the rotating cylinder; the rotating rod and the rotating rod are both connected with the driving assembly; and the mixing cylinder is connected with the supporting assembly. According to the utility model, the mixing degree of raw materials is improved through differential stirring and up-and-down circulating stirring, meanwhile, during stirring, caked materials can be crushed, the contact area of the raw materials is enlarged, and the mixing degree is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to a concrete raw material mixing device. Background Art

[0002] Concrete should actually be called "concrete." Concrete, also known as "tong," is a general term for engineering composite materials composed of aggregates bonded together by a cementitious material. The term "concrete" generally refers to cement as the binder, sand and stone as aggregates, and water (with or without admixtures) mixed in a specific proportion, then formed and cured. Cement concrete, also known as ordinary concrete, is widely used in civil engineering.

[0003] The concrete production process requires a mixing device. A search revealed that Chinese Utility Model Publication No. CN212684331U discloses a concrete raw material mixing device, comprising a mixing box, a feed channel, a dispersion plate, a rotating shaft, a rotating motor, a stirring paddle, a fixed net, a scraper, and a cleaning brush. The mixing box is cylindrical, with the feed channel connected to the top and an inclined dispersion plate connected to the bottom of the feed channel. The dispersion plate is wavy in shape. A rotating shaft is provided within the mixing box, connected to the rotating motor, and a spiral stirring paddle is provided on the rotating shaft. The stirring paddle is evenly provided with connecting holes and is positioned flush with the inner wall of the mixing box. A fixed net is provided at the bottom of the mixing box, and a scraper and a cleaning brush are provided at the bottom of the rotating shaft. This facilitates mixing of the concrete raw materials. However, this device, like existing mixing devices, uses a single-shaft stirring method, which is too simple and makes it difficult to fully mix the raw materials, thus making it difficult to further improve mixing efficiency. Utility Model Content

[0004] Based on the deficiencies in the prior art mentioned in the above background technology, the present invention provides a concrete raw material mixing device.

[0005] The present invention overcomes the above technical problems by adopting the following technical solutions, specifically:

[0006] A concrete raw material mixing device, comprising:

[0007] A mixing drum, wherein a first rotating hole is formed at the bottom of the mixing drum, a stirring structure is provided inside the first rotating hole, and the stirring structure comprises a rotating drum and a rotating rod, wherein the rotating rod is integrally rotatably mounted inside the rotating drum, one end of the rotating drum is rotatably mounted in the first rotating hole, a plurality of equidistant scrapers are fixed to one end of the rotating rod, and a plurality of stirring plates are fixed to the outside of the rotating drum;

[0008] A driving assembly, wherein the rotating rod and the rotating rod are both connected to the driving assembly;

[0009] Support component, the mixing cylinder is connected to the support component.

[0010] As a further solution of the present utility model: a spiral blade coaxially arranged with the rotating cylinder is fixed on the outer side wall of the bottom end of the rotating cylinder.

[0011] As a further solution of the present utility model: an arc-shaped plate is fixed on one outer side wall of the scraper.

[0012] As a further solution of the present utility model: a plurality of gaps through which the stirring plate can pass are formed on the outer arc surface outer wall of the arc-shaped plate.

[0013] As a further solution of the present utility model: the driving component includes a second servo motor and two transmission components. The housing of the second servo motor is fixed on the outside of the mixing cylinder. The transmission component includes a first transmission wheel, a second transmission wheel and a transmission belt. Among them, the transmission belt is sleeved on the first transmission wheel and the second transmission wheel. The first transmission wheel in one transmission component and the second transmission wheel in the other transmission component are both coaxially fixed with the output shaft of the second servo motor. The second transmission wheel in one transmission component and the first transmission wheel in the other transmission component are respectively coaxially fixed with the transmission rod and the rotating cylinder.

[0014] As a further solution of the present utility model: the support component includes a welding bracket. Second rotation holes are formed on both outer side walls of the welding bracket. A rotating shaft is rotatably installed inside the second rotation hole. One end of the rotating shaft is fixed to the mixing cylinder. A rotating component is arranged outside the welding bracket.

[0015] As a further solution of the present utility model: the rotating component includes a worm gear, a worm, a first servo motor and two fixing plates. The fixing plates are fixed to the welding bracket. A third rotation hole is formed on the outside of the fixing plate. Both ends of the worm are respectively rotatably installed in the third rotation hole. The worm gear is coaxially fixed with one of the rotating shafts. The worm gear meshes with the worm. The housing of the first servo motor is fixed to the welding bracket. The output shaft of the first servo motor is coaxially fixed with the worm.

[0016] After adopting the above structure, compared with the prior art, the present utility model has the following advantages:

[0017] This mixing device improves the mixing degree of raw materials through differential stirring and up-and-down circulating stirring. At the same time, when stirring, it can break up agglomerated materials, expand the contact area of each raw material, and further improve the mixing degree. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0019] Figure 2 Schematic diagram of the three-dimensional structure of the mixing cylinder of the present utility model.

[0020] Figure 3 Schematic diagram of the internal structure of the mixing cylinder of the present utility model.

[0021] Figure 4 Top view structure schematic diagram of the mixing cylinder of the present utility model.

[0022] Figure 5 Partial sectional view structure schematic diagram of the present utility model.

[0023] In the figure: 1, welding bracket; 2, fixed plate; 3, worm; 4, first servo motor; 5, worm wheel; 6, mixing cylinder; 7, stirring structure; 8, second servo motor; 9, rotating shaft; 10, transmission belt; 11, first transmission wheel; 12, second transmission wheel; 13, scraper; 14, arc plate; 15, stirring plate; 16, rotating cylinder; 17, spiral leaf; 18, driving component; 19, rotating rod. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 5 , in the embodiments of the present utility model, a concrete raw material mixing device includes:

[0026] A mixing cylinder 6 for placing raw materials. A first rotation hole is opened at the bottom of the mixing cylinder 6, and a stirring structure 7 is arranged inside the first rotation hole. The stirring structure 7 includes a rotating cylinder 16 and a rotating rod 19. Among them, the whole of the rotating rod 19 is rotatably installed inside the rotating cylinder 16, one end of the rotating cylinder 16 is rotatably installed in the first rotation hole, a plurality of equally spaced scrapers 13 are fixed at one end of the rotating rod 19, and a plurality of stirring plates 15 are fixed on the outer side of the rotating cylinder 16;

[0027] A driving component 18. Both the rotating rod 19 and the rotating rod 19 are connected to the driving component 18, and the driving component 18 makes the rotating cylinder 16 and the rotating rod 19 connected thereto perform axial rotation;

[0028] A supporting component. The mixing cylinder 6 is connected to the supporting component, and the mixing cylinder 6 stands on the ground through the supporting component.

[0029] Specifically, a spiral blade 17 coaxially arranged with the rotating cylinder 16 is fixed on the outer side wall of the bottom end of the rotating cylinder 16. When the rotating cylinder 16 rotates axially, the spiral blade 17 rotates synchronously with the rotating cylinder 16. The spiral blade 17 pushes the raw materials at the bottom of the mixing cylinder 6 upward, so as to realize the up-and-down circulating stirring, prevent the raw materials at the bottom of the mixing cylinder 6 from accumulating, and improve the mixing degree.

[0030] Specifically, an arc-shaped plate 14 is fixed on the outer side wall of one side of the scraper 13. When the rotating rod 19 rotates axially, each scraper 13 rotates synchronously with the rotating rod 19. The scraper 13 scrapes off the raw materials adhering to the inner wall of the mixing cylinder 6, and each raw material is pushed into the middle of the mixing cylinder 6 along the arc-shaped plate 14, so that the raw materials can contact the spiral blade 17.

[0031] Specifically, a plurality of gaps through which the stirring plates 15 can pass are formed on the outer arc surface of the arc-shaped plate 14. When the stirring plates 15 penetrate the gaps, the agglomerated materials enter between the stirring plates 15 and the arc-shaped plate 14 and are crushed by extrusion, so as to expand the contact area of each raw material and improve the mixing degree.

[0032] Specifically, the driving component 18 includes a second servo motor 8 and two transmission components. The housing of the second servo motor 8 is fixed on the outside of the mixing cylinder 6. The transmission component includes a first transmission wheel 11, a second transmission wheel 12 and a transmission belt 10. Among them, the transmission belt 10 is sleeved on the first transmission wheel 11 and the second transmission wheel 12. The first transmission wheel 11 in one transmission component and the second transmission wheel 12 in the other transmission component are both coaxially fixed to the output shaft of the second servo motor 8. The second transmission wheel 12 in one transmission component and the first transmission wheel 11 in the other transmission component are respectively coaxially fixed to the transmission rod and the rotating cylinder 16. The second servo motor 8 makes the first transmission wheel 11 and the second transmission wheel 12 fixed to it rotate axially through the output shaft. The first transmission wheel 11 and the second transmission wheel 12 make the other first transmission wheel 11 and the second transmission wheel 12 rotate through the transmission belt 10 connected to each other. Therefore, it can be seen that the rotating cylinder 16 and the rotating rod 19 rotate axially synchronously, and their rotation speeds are different, realizing differential stirring.

[0033] Specifically, the support component includes a welding bracket 1. Second rotation holes are formed in the outer walls on both sides of the welding bracket 1. A rotation shaft 9 is rotatably installed inside the second rotation holes. One end of the rotation shaft 9 is fixed to the mixing cylinder 6. A rotation component is arranged outside the welding bracket 1. The rotation component includes a worm gear 5, a worm 3, a first servo motor 4, and two fixing plates 2. The fixing plates 2 are fixed to the welding bracket 1. Third rotation holes are formed in the outer sides of the fixing plates 2. Both ends of the worm 3 are respectively rotatably installed in the third rotation holes. The worm gear 5 is coaxially fixed to one of the rotation shafts 9. The worm gear 5 meshes with the worm 3. The housing of the first servo motor 4 is fixed to the welding bracket 1. The output shaft of the first servo motor 4 is coaxially fixed to the worm 3. After mixing is completed, the first servo motor 4 causes the worm 3 to axially rotate through the output shaft. The worm 3 drives the worm gear 5. The worm gear 5 drives the rotation shaft 9 fixed thereto to rotate. The rotation shaft 9 drives the mixing cylinder 6 to rotate, so that the mixing cylinder 6 is inverted, and the mixed concrete is poured out.

[0034] Working principle: Pour each raw material into the mixing cylinder 6. The second servo motor 8 causes the first driving wheel 11 and the second driving wheel 12 fixed thereto to axially rotate through the output shaft. The first driving wheel 11 and the second driving wheel 12 drive the other first driving wheel 11 and the second driving wheel 12 to rotate through the transmission belt 10 connected to each other. Thus, it can be seen that the rotating cylinder 16 and the rotating rod 19 rotate axially synchronously, and their rotation speeds are different, realizing differential stirring. When the rotating rod 19 axially rotates, each scraping plate 13 rotates synchronously with the rotating rod 19. The scraping plates 13 scrape off the raw materials adhering to the inner wall of the mixing cylinder 6. Each raw material is pushed along the arc-shaped plate 14 into the middle of the mixing cylinder 6, so that the raw materials can contact the spiral blade 17. When the rotating cylinder 16 axially rotates, the spiral blade 17 rotates synchronously with the rotating cylinder 16. The spiral blade 17 pushes the raw materials at the bottom of the mixing cylinder 6 upward, thus realizing up-and-down circulating flow stirring. The raw materials at the bottom of the mixing cylinder 6 will not accumulate, improving the mixing degree. When the stirring plate 15 penetrates the notch, the agglomerated materials enter between the stirring plate 15 and the arc-shaped plate 14 and are crushed by extrusion, thereby expanding the contact area of each raw material and improving the mixing degree. After mixing is completed, the first servo motor 4 causes the worm 3 to axially rotate through the output shaft. The worm 3 drives the worm gear 5. The worm gear 5 drives the rotation shaft 9 fixed thereto to rotate. The rotation shaft 9 drives the mixing cylinder 6 to rotate, so that the mixing cylinder 6 is inverted, and the mixed concrete is poured out.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model.

Claims

1. A concrete raw material mixing device, characterized in that: include: A mixing drum (6), wherein a first rotating hole is provided at the bottom of the mixing drum (6), a stirring structure (7) is provided inside the first rotating hole, and the stirring structure (7) comprises a rotating drum (16) and a rotating rod (19), wherein the rotating rod (19) is integrally rotatably mounted inside the rotating drum (16), one end of the rotating drum (16) is rotatably mounted in the first rotating hole, a plurality of equidistant scrapers (13) are fixed to one end of the rotating rod (19), and a plurality of stirring plates (15) are fixed to the outside of the rotating drum (16); A driving assembly (18), the rotating rod (19) and the rotating rod (19) are both connected to the driving assembly (18); A supporting assembly, wherein the mixing cylinder (6) is connected to the supporting assembly; A spiral blade (17) coaxially arranged therewith is fixed to the outer side wall of the bottom end of the rotating cylinder (16); An arc-shaped plate (14) is fixed to an outer wall of one side of the scraper (13); The outer wall of the outer arc surface of the arc-shaped plate (14) is provided with a plurality of notches for the stirring plate (15) to pass through; The driving assembly (18) includes a second servo motor (8) and two transmission assemblies, wherein the housing of the second servo motor (8) is fixed on the outside of the mixing drum (6), and the transmission assembly includes a first transmission wheel (11), a second transmission wheel (12) and a transmission belt (10), wherein the transmission belt (10) is sleeved on the first transmission wheel (11) and the second transmission wheel (12), the first transmission wheel (11) in one transmission assembly and the second transmission wheel (12) in the other transmission assembly are both coaxially fixed to the output shaft of the second servo motor (8), and the second transmission wheel (12) in one transmission assembly and the first transmission wheel (11) in the other transmission assembly are respectively coaxially fixed to the transmission rod and the rotating drum (16).

2. A concrete raw material mixing device according to claim 1, characterized in that: The support assembly comprises a welding bracket (1), and second rotation holes are provided on both side outer walls of the welding bracket (1). A rotation shaft (9) is rotatably installed inside the second rotation hole, and one end of the rotation shaft (9) is fixed to the mixing barrel (6). A rotation assembly is provided on the outer side of the welding bracket (1).

3. A concrete raw material mixing device according to claim 2, characterized in that: The rotating assembly comprises a worm wheel (5), a worm (3), a first servo motor (4) and two fixed plates (2); the fixed plate (2) is fixed to the welding bracket (1); a third rotating hole is provided on the outer side of the fixed plate (2); both ends of the worm (3) are rotatably mounted in the third rotating hole; the worm wheel (5) is coaxially fixed to one of the rotating shafts (9); the worm wheel (5) is meshed with the worm (3); the housing of the first servo motor (4) is fixed to the welding bracket (1); and the output shaft of the first servo motor (4) is coaxially fixed to the worm (3).

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