A concrete mixer

Abstract

The application relates to the technical field of concrete mixing, and discloses a concrete mixer, which comprises a shell, a rotating disc is rotationally connected to the bottom of the inner side of the shell, an inner cylinder is fixedly connected to the top of the rotating disc, a servo motor is fixedly connected to the bottom of the shell, an output end of the servo motor penetrates through the shell and is fixedly connected with a rotating rod, the middle lower part of the rotating rod is fixedly connected to the middle part of the rotating disc, and the top end of the rotating rod penetrates through the inner cylinder. Through the driving of the servo motor, the rotating disc, the rotating rod and stirring blades are cooperatively stirred, meanwhile, a reduction motor drives stirring blades two to be transversely stirred, the multi-angle stirring effect is achieved, the stirring efficiency is improved, and through the cooperation of the support seat and the supporting legs arranged on the outer wall of the shell and the driving of the stepping motor, under the action of gear one and gear two, through the cooperation of the bolts, the openings and the threaded holes, the inner cylinder is more stable and convenient in the stirring, feeding and discharging processes.

Description

Technical Field

[0001] This invention relates to the field of concrete mixing technology, specifically to a concrete mixer. Background Technology

[0002] Concrete is an artificial building material made from raw materials such as cement, sand, gravel, and water through mixing, pouring, and solidification. It has high strength, durability, and fire resistance, and is widely used in construction, roads, bridges, and water conservancy projects.

[0003] In construction projects, concrete needs to be mixed using a mixer. A concrete mixer is a specialized piece of equipment for mixing concrete. It typically consists of a mixing drum, mixing blades, a transmission system, and an electric motor. The working principle of a concrete mixer is that the rotating mixing blades in the mixing drum thoroughly mix and stir the concrete raw materials. The design of the mixing blades allows the concrete raw materials to continuously tumble and roll within the mixing drum, thereby achieving uniform mixing of the concrete raw materials.

[0004] However, simply rotating the mixing drum and mixing blades results in a long working time for concrete mixing, leading to low efficiency of the entire mixing process. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a concrete mixer that solves the problem of long concrete mixing time, which leads to low efficiency in the overall mixing process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a concrete mixer includes a shell, a turntable rotatably connected to the bottom inner side of the shell, an inner cylinder fixedly connected to the top of the turntable, a servo motor fixedly connected to the bottom of the shell, the output end of the servo motor penetrating the shell and fixedly connected to a rotating rod, the lower middle part of the rotating rod fixedly connected to the middle of the turntable, the top end of the rotating rod penetrating the inner cylinder, a plurality of first stirring blades fixedly connected to the upper middle part of the outer wall of the rotating rod, a plurality of rotating shafts fixedly connected around the outer wall of the inner cylinder, a winding wheel fixedly connected to the end of each of the plurality of rotating shafts, a second stirring blade fixedly connected to the outer wall of each of the plurality of rotating shafts, the plurality of winding wheels connected to each other by a belt, a transmission rod fixedly connected to the middle of the top winding wheel, a reduction motor fixedly connected around the top of the shell, the output ends of the plurality of reduction motors respectively fixedly connected to one end of the corresponding transmission rod, and an auxiliary mechanism provided on the outer wall of the shell.

[0007] Preferably, the auxiliary mechanism includes a connecting rod, with the connecting rod fixedly connected to the middle of the left and right sides of the outer wall of the housing. A support base is rotatably connected to the middle of the connecting rod, and a gear is fixedly connected to the end of the connecting rod. Support legs are fixedly connected to the front and rear sides of the bottom of the support base. A crossbeam is fixedly connected to the adjacent side of the left support leg and the adjacent side of the right support leg. A stepper motor is fixedly connected to the opposite side of the two crossbeams, and a gear is fixedly connected to the output end of the stepper motor.

[0008] Preferably, the auxiliary mechanism further includes bolts and openings, with bolts threaded to the front and rear ends of the middle of the plurality of support seats, and a plurality of openings provided around the outer wall of the housing.

[0009] Preferably, two side plates are fixedly connected to the front and rear sides of the outer wall of the outer shell, and threaded holes are opened in the middle of the multiple side plates.

[0010] Preferably, a first diagonal brace is fixedly connected to the right side of the left-side support leg, a second diagonal brace is fixedly connected to the left side of the right-side support leg, and multiple fixed rods are fixedly connected to the adjacent side of the first diagonal brace on the left side and the adjacent side of the second diagonal brace on the right side.

[0011] Preferably, a controller is fixedly connected to the bottom left side of the left-side support leg, and the controller is electrically connected to the servo motor, the stepper motor and the geared motor respectively.

[0012] Preferably, the bottom front and rear sides of the outrigger are fixedly connected with casters, and the top of the support base is fixedly connected with a handrail.

[0013] Working principle: A stepper motor drives gear two to rotate, and gear two meshes with gear one, further driving gear one to drive the connecting rod and rotate the outer shell, thus rotating the inner cylinder to a horizontal position. Then, a bolt is tightened and passes through the corresponding opening to abut against the outer wall of the inner cylinder. Simultaneously, gear one and gear two mesh and engage, keeping the inner cylinder horizontal. Concrete is then poured into the inner cylinder. Tightening the bolt in the opposite direction releases the limit, and with the drive of the stepper motor, the inner cylinder rotates to an upward-facing position. At this point, gear one and gear two continue to mesh and engage. Finally, the bolt is tightened again to connect with the corresponding threaded hole. The inner cylinder is fixed in place to ensure its stability. Then, a servo motor drives the rotating rod to rotate, causing the first stirring blade to stir. At the same time, the turntable drives the inner cylinder to rotate clockwise. In addition, a geared motor drives the transmission rod to rotate, causing the second stirring blade to stir laterally. This increases multi-directional and multi-angle stirring, improves stirring efficiency, and shortens stirring time. After stirring is completed, the bolts are turned in the opposite direction, and the geared motor drives the inner cylinder to rotate to the opening facing downwards, thus enabling material discharge. This makes the entire feeding and discharging process more convenient and faster.

[0014] This invention provides a concrete mixer. It has the following beneficial effects:

[0015] 1. This invention uses a servo motor to drive the rotation of the turntable, rotating rod, and mixing blade one, while a reduction motor drives mixing blade two to perform lateral mixing, thereby achieving a multi-angle mixing effect for the concrete in the inner cylinder and further improving the mixing efficiency.

[0016] 2. This invention provides a support base and legs on the outer wall of the outer shell, which are driven by a stepper motor. Under the action of gear one and gear two, and through the cooperation of bolts, openings and threaded holes, the inner cylinder is made more stable and convenient during the stirring, feeding and discharging process. Attached Figure Description

[0017] Figure 1 This is a front view of the present invention;

[0018] Figure 2 This is a side view of the present invention;

[0019] Figure 3 This is a top view of the present invention;

[0020] Figure 4 This is a three-dimensional partial structural disassembly diagram of the present invention;

[0021] Figure 5 This is a three-dimensional partial structural illustration of the present invention;

[0022] Figure 6 This is a partial structural diagram of the auxiliary mechanism structure of the present invention.

[0023] The components are as follows: 1. Outer shell; 2. Turntable; 3. Inner cylinder; 4. Servo motor; 5. Rotating rod; 6. Agitator blade 1; 7. Rotating shaft; 8. Rewinding wheel; 9. Agitator blade 2; 10. Belt; 11. Transmission rod; 12. Auxiliary mechanism; 1201. Connecting rod; 1202. Support base; 1203. Gear 1; 1204. Support leg; 1205. Crossbeam; 1206. Stepper motor; 1207. Gear 2; 1208. Bolt; 1209. Opening; 13. Side plate; 14. Diagonal brace 1; 15. Diagonal brace 2; 16. Fixing rod; 17. Controller; 18. Caster wheel; 19. Handrail; 20. Gear motor; 21. Threaded hole. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] Example:

[0026] Please see the appendix Figure 1 - Appendix Figure 6 This invention provides a concrete mixer, including a shell 1, a turntable 2 rotatably connected to the bottom inner side of the shell 1, an inner cylinder 3 fixedly connected to the top of the turntable 2, a servo motor 4 fixedly connected to the bottom of the shell 1, the output end of the servo motor 4 penetrating the shell 1 and fixedly connected to a rotating rod 5, the lower middle part of the rotating rod 5 fixedly connected to the middle of the turntable 2, the top end of the rotating rod 5 penetrating the inner cylinder 3, a plurality of first stirring blades 6 fixedly connected to the upper middle part of the outer wall of the rotating rod 5, a plurality of rotating shafts 7 fixedly connected around the outer wall of the inner cylinder 3, a winding wheel 8 fixedly connected to the end of each of the plurality of rotating shafts 7, a second stirring blade 9 fixedly connected to the outer wall of each of the plurality of rotating shafts 7, the plurality of winding wheels 8 being connected to each other via belts 10, a transmission rod 11 fixedly connected to the middle of the top winding wheel 8, a reduction motor 20 fixedly connected around the top of the shell 1, the output ends of the plurality of reduction motors 20 being fixedly connected to one end of the corresponding transmission rod 11, and an auxiliary mechanism 12 provided on the outer wall of the shell 1.

[0027] Specifically, servo motor 4 drives rotor 5 to rotate, which in turn drives stirring blade 6 to perform efficient stirring. Servo motor 4 is a highly precise electric motor that can accurately control the rotation speed and direction of rotor 5 according to preset instructions. This motor not only has high efficiency and stability, but can also be programmed to achieve complex motion trajectories, providing extremely high flexibility and adjustability for the stirring process. Rotor 5 is closely connected to stirring blade 6, and as rotor 5 rotates, stirring blade 6 also performs corresponding stirring actions. This stirring method can effectively mix materials, improving the uniformity and consistency of the materials. At the same time, turntable 2 drives inner cylinder 3 to rotate clockwise, further enhancing the stirring effect. To further improve stirring efficiency, geared motor 20 is introduced into this system. Geared motor 20 drives transmission rod 11 to rotate, thereby driving stirring blade 9 to perform transverse stirring. This transverse stirring, combined with the previous stirring method, forms a multi-directional, multi-angle stirring effect, greatly improving stirring efficiency and shortening stirring time. The introduction of geared motor 20 not only enhances the stirring effect, but also improves the stability and reliability of the entire system. The geared motor 20 has the characteristics of speed reduction and torque increase, which can effectively convert the output of the high-speed rotating motor into low-speed, high-torque rotation, thereby better adapting to the working requirements of the stirring blade 9. In general, this technical solution, which achieves multi-directional and multi-angle stirring through the coordinated work of the servo motor 4 and the geared motor 20, not only improves stirring efficiency and shortens stirring time, but also brings a higher level of automation and intelligence to modern industrial production.

[0028] The auxiliary mechanism 12 includes a connecting rod 1201. The connecting rod 1201 is fixedly connected to the middle of the left and right sides of the outer wall of the outer shell 1. The middle of the connecting rod 1201 is rotatably connected to a support seat 1202. The end of the connecting rod 1201 is fixedly connected to a gear 1203. The bottom front and rear sides of the support seat 1202 are fixedly connected to support legs 1204. The adjacent side of the left support leg 1204 and the adjacent side of the right support leg 1204 are fixedly connected to a crossbeam 1205. The two crossbeams 1205 are fixedly connected to the opposite sides of each other. The output end of the stepper motor 1206 is fixedly connected to a gear 1207. The auxiliary mechanism 12 also includes bolts 1208 and openings 1209. The front and rear ends of the middle of the multiple support seats 1202 are threaded with bolts 1208. Multiple openings 1209 are opened around the outer wall of the outer shell 1.

[0029] Specifically, stepper motor 1206 drives gear 1207 to rotate. Gear 1207 meshes with gear 1203, further driving gear 1203 to drive connecting rod 1201, which in turn rotates the outer casing 1, thus rotating the inner cylinder 3 to a horizontal position. Bolt 1208 is then tightened and passes through the corresponding opening 1209 to abut against the outer wall of the inner cylinder 3. Simultaneously, gears 1203 and 1207 mesh and engage, keeping the inner cylinder 3 horizontal. Stepper motor 1206 is a special type of motor that converts electrical pulse signals into angular or linear displacement. By controlling the frequency and number of pulse signals, we can precisely control the rotation angle and speed of stepper motor 1206. In this example, stepper motor 1206 is used to drive gear 1207. The meshing transmission between gear 1207 and gear 1203 is the key to achieving power transmission. The basic principle of gear meshing transmission is that when two gears come into contact, their tooth surfaces generate friction, allowing the rotation of one gear to drive the rotation of the other. By rationally designing parameters such as the number of teeth, module, and pressure angle of the gears, different transmission ratios and efficiencies can be achieved. In this example, the rotation of gear two 1207 drives the rotation of gear one 1203 through meshing transmission. Next, gear one 1203 is connected to the outer shell 1 via connecting rod 1201. When gear one 1203 rotates, it drives connecting rod 1201 and outer shell 1 to rotate together. This transmission method is not only simple and compact in structure, but also achieves a wide range of rotation angles and high transmission efficiency. By precisely controlling the pulse signal of stepper motor 1206, we can make the outer shell 1 and inner cylinder 3 rotate to a horizontal state. To maintain the stability of the inner cylinder 3 in a horizontal state, we use the engagement of bolt 1208 and opening 1209. When the inner cylinder 3 rotates to a horizontal state, bolt 1208 is tightened and passes through the corresponding opening 1209 to abut against the outer wall of the inner cylinder 3. This method not only effectively fixes the position of the inner cylinder 3 but also withstands certain radial and axial loads, ensuring the stability of the inner cylinder 3 during operation. Simultaneously, the meshing and engagement between gear one 1203 and gear two 1207 plays a crucial role. When gear one 1203 and gear two 1207 mesh, their tooth surfaces generate a certain frictional force, allowing the inner cylinder 3 to maintain a relatively stable position in a horizontal state. This meshing and engagement method not only effectively transmits power but also reduces vibration and noise during transmission, improving the overall efficiency and stability of the mechanical device. In summary, by driving gear two 1207 to rotate via stepper motor 1206, and utilizing the meshing transmission of gear one 1203 and the driving action of connecting rod 1201, we can rotate the inner cylinder 3 to a horizontal state. Simultaneously, through the cooperation of bolt 1208 and opening 1209, and the meshing and engagement of gear one 1203 and gear two 1207, we can maintain the stability of the inner cylinder 3 in a horizontal state.

[0030] Two side plates 13 are fixedly connected to the front and rear sides of the outer wall of the outer shell 1, and threaded holes 21 are opened in the middle of the multiple side plates 13;

[0031] Specifically, concrete is fed into the inner cylinder 3. The limiting position is released by reversing the screw 1208, and the inner cylinder 3 rotates to an upward-facing position driven by the stepper motor 1206. At this point, gears 1203 and 1207 continue to mesh and engage. The screw 1208 is then tightened again to connect with the corresponding threaded hole 21 for fixation, ensuring the stability of the inner cylinder 3 and making the entire feeding and discharging process more convenient and faster. The inner cylinder 3 is the main container for storing and transporting concrete; its ingenious design enables rapid feeding and discharging. The reversing screw 1208 is used to fix the position of the inner cylinder 3, ensuring its stability during operation. The stepper motor 1206 provides power to drive the inner cylinder 3 to rotate, thereby achieving the purpose of feeding and discharging. The coordinated use of gears 1203 and 1207 makes the entire mechanism more efficient and stable. During operation, concrete is first fed into the inner cylinder 3. Then, by reversing the screw 1208, the limiting position is released, allowing the inner cylinder 3 to rotate freely under the drive of the stepper motor 1206. When the inner cylinder 3 rotates to the position with the cylinder opening facing upwards, gear one 1203 and gear two 1207 continue to mesh and engage, ensuring the stability of the inner cylinder 3. At this time, the screw 1208 is tightened again to connect with the corresponding threaded hole 21 for fixation, thereby ensuring the stability of the inner cylinder 3 throughout the entire working process. The advantage of this mechanism lies in its efficient and convenient feeding and discharging method. Through the precise control of the stepper motor 1206, the inner cylinder 3 can rotate rapidly, thus quickly completing the concrete feeding and discharging work. In addition, due to the meshing and engaging design of gear one 1203 and gear two 1207, the inner cylinder 3 is more stable during rotation, effectively avoiding problems such as concrete overflow. In practical applications, this mechanism can not only improve production efficiency but also reduce the labor intensity of workers. In summary, this concrete feeding and discharging mechanism, through ingenious mechanical design and the application of modern technology, achieves an efficient and convenient feeding and discharging process. This not only improved production efficiency but also ensured project quality.

[0032] The right side of the left support leg 1204 is fixedly connected to a diagonal brace 14, and the left side of the right support leg 1204 is fixedly connected to a diagonal brace 2 15. Multiple fixed rods 16 are fixedly connected to the adjacent side of the left diagonal brace 14 and the adjacent side of the right diagonal brace 2 15.

[0033] Specifically, the stability of the entire equipment is improved by the stable installation of diagonal brace 14 and diagonal brace 2 15, in conjunction with the fixed support of fixed rod 16.

[0034] A controller 17 is fixedly connected to the bottom left side of the left support leg 1204. The controller 17 is electrically connected to the servo motor 4, the stepper motor 1206 and the geared motor 20 respectively.

[0035] Specifically, the controller 17 controls the operation of the servo motor 4, the stepper motor 1206 and the geared motor 20 respectively.

[0036] The bottom front and rear sides of the outrigger 1204 are fixedly connected with casters 18, and the top of the support base 1202 is fixedly connected with a handrail 19.

[0037] Specifically, the casters 18 facilitate the movement and transportation of the entire equipment, while the handlebars 19 facilitate the pushing, pulling, and moving of the equipment by technicians during their work.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete mixer, comprising a casing (1), characterized in that: A turntable (2) is rotatably connected to the bottom inner side of the outer shell (1). An inner cylinder (3) is fixedly connected to the top of the turntable (2). A servo motor (4) is fixedly connected to the bottom of the outer shell (1). The output end of the servo motor (4) passes through the outer shell (1) and is fixedly connected to a rotating rod (5). The lower middle part of the rotating rod (5) is fixedly connected to the middle of the turntable (2). The top end of the rotating rod (5) passes through the inner cylinder (3). Multiple stirring blades (6) are fixedly connected to the upper middle part of the outer wall of the rotating rod (5). Multiple rotating blades are fixedly connected to the outer wall of the inner cylinder (3) around its perimeter. Shaft (7), the ends of multiple shafts (7) are fixedly connected to winding wheels (8), the outer walls of multiple shafts (7) are fixedly connected to stirring blades (9), multiple winding wheels (8) are connected to each other by belts (10), the middle of the top winding wheel (8) is fixedly connected to a transmission rod (11), the top of the outer shell (1) is fixedly connected to a geared motor (20) around the top, the output ends of multiple geared motors (20) are fixedly connected to one end of the corresponding transmission rod (11), and the outer wall of the outer shell (1) is provided with an auxiliary mechanism (12).

2. A concrete mixer according to claim 1, characterized in that: The auxiliary mechanism (12) includes a connecting rod (1201). The connecting rod (1201) is fixedly connected to the middle of the left and right sides of the outer wall of the outer shell (1). The middle of the connecting rod (1201) is rotatably connected to a support base (1202). The end of the connecting rod (1201) is fixedly connected to a gear one (1203). The bottom front and rear sides of the support base (1202) are fixedly connected to support legs (1204). The adjacent side of the left support leg (1204) and the adjacent side of the right support leg (1204) are fixedly connected to crossbeams (1205). The two crossbeams (1205) are fixedly connected to the opposite sides of the two crossbeams (1205). The output end of the stepper motor (1206) is fixedly connected to a gear two (1207).

3. A concrete mixer according to claim 2, characterized in that: The auxiliary mechanism (12) also includes bolts (1208) and openings (1209). The front and rear ends of the middle of the multiple support seats (1202) are threaded with bolts (1208), and multiple openings (1209) are provided around the outer wall of the outer shell (1).

4. A concrete mixer according to claim 1, characterized in that: The outer wall of the outer shell (1) is fixedly connected to two side plates (13) on both the front and rear sides, and threaded holes (21) are opened in the middle of the multiple side plates (13).

5. A concrete mixer according to claim 2, characterized in that: The right side of the left support leg (1204) is fixedly connected to a diagonal brace 1 (14), and the left side of the right support leg (1204) is fixedly connected to a diagonal brace 2 (15). Multiple fixed rods (16) are fixedly connected to the adjacent side of the left diagonal brace 1 (14) and the adjacent side of the right diagonal brace 2 (15).

6. A concrete mixer according to claim 2, characterized in that: A controller (17) is fixedly connected to the bottom left side of the left-side support leg (1204). The controller (17) is electrically connected to the servo motor (4), the stepper motor (1206), and the geared motor (20).

7. A concrete mixer according to claim 2, characterized in that: The bottom front and rear sides of the support leg (1204) are fixedly connected with casters (18), and the top of the support base (1202) is fixedly connected with a handrail (19).

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