Double-cylinder type concrete stirring device

Abstract

The utility model discloses a double-cylinder type concrete mixing device, which relates to the technical field of concrete mixing, and comprises a first cylinder body and a second cylinder body, the bottom of the second cylinder body is fixedly communicated with a connecting cylinder, the bottom of the connecting cylinder is fixedly communicated with the first cylinder body, the inner side of the second cylinder body is provided with a mixing mechanism, and the mixing mechanism is fixedly communicated with the first cylinder body. The rack is driven by the crank to reciprocate and is matched with the transmission gear to generate clockwise and anticlockwise alternate rotation, and the rotation is transmitted to the first rotating sleeve and the driving bevel gear through the transmission gear, drives the symmetrical second driven bevel gears to rotate oppositely, and is further transmitted to the first driven bevel gear and the second rotating sleeve; the two rotating sleeves synchronously and reversely rotate, so that collaborative and alternate stirring of the first stirring frame and the second stirring frame is ensured, stirring dead angles are effectively avoided through staggered movement tracks, uniform mixing is realized, and the stirring efficiency and the concrete quality are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete mixing technology, and in particular to a double-cylinder concrete mixing device. Background Technology

[0002] Concrete mixing is the process of mixing cement, sand, gravel, water, and possibly admixtures and additives in a certain proportion until they are homogeneous.

[0003] For example, patent document CN219855243U discloses a concrete mixing device, including a tank, a motor on one side of the tank, a mixing rod inside the tank, the mixing rod being fixedly connected to the output end of the motor, a support device at the bottom of the tank, and a cleaning device inside the tank. The support device includes a cylinder, which is fixedly connected to the tank. A cylindrical block is slidably connected to the inner wall of the cylinder, and a screw is fixedly connected to one end of the cylindrical block.

[0004] However, in the existing technology, during the concrete mixing process, there are some areas that the mixing blades cannot reach or that cannot be fully utilized by the mixing blades. This results in the concrete not being mixed evenly in the corresponding areas. After mixing, there is a phenomenon of local cement paste enrichment and other parts of aggregate concentration. The strength and appearance quality of such uneven concrete will be affected after pouring, resulting in quality defects such as local honeycomb and pitted surfaces. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that some areas are difficult for the mixing blades to reach or cannot be fully utilized by the mixing blades, resulting in uneven mixing of concrete in the corresponding areas. Therefore, a double-cylinder concrete mixing device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a double-cylinder concrete mixing device, comprising a first cylinder and a second cylinder, wherein a connecting cylinder is fixedly connected to the bottom of the second cylinder, the bottom of the connecting cylinder is fixedly connected to the first cylinder, and a mixing mechanism is installed inside the second cylinder.

[0007] The stirring mechanism includes a top plate and a fixed rod. A crank is rotatably connected to one end of the top plate, and a rack is rotatably connected to one end of the crank. The top of the fixed rod is fixedly connected to the top plate, and a transmission gear is rotatably connected to the outer surface of the top of the fixed rod. The transmission gear meshes with the rack. A limit frame is rotatably connected to the outer surface of the top of the fixed rod, and the inner side of the limit frame is slidably connected to the rack. A first rotating sleeve is fixedly connected to the bottom of the transmission gear, and a driving bevel gear is fixedly connected to the bottom of the first rotating sleeve. A rotating rod is provided at the bottom of the first rotating sleeve, and the rotating rod is fixedly connected to the fixed rod. A second driven bevel gear is rotatably connected to the outer surfaces of both ends of the rotating rod. A second rotating sleeve is rotatably connected to the outer surface of the bottom of the fixed rod. A first stirring frame is connected to the first rotating sleeve, and a second stirring frame is connected to the second rotating sleeve.

[0008] The top of the second rotating sleeve is fixedly connected to a first driven bevel gear, which meshes with two second driven bevel gears.

[0009] Preferably, a feed inlet is provided on one outer surface of the second cylinder, and a support leg is fixedly connected to the outer surface of the first cylinder.

[0010] Preferably, a drive motor is installed at the bottom of the top plate, and the bottom of the top plate is fixedly connected to the top of the second cylinder. A belt drive component is fixedly connected to the output end of the drive motor. The belt drive component is rotatably installed on the top of the top plate. One end of the belt drive component is fixedly connected to one end of a crank, and the crank is located below the top plate.

[0011] Preferably, three first stirring frames are fixedly connected to the outer surface of the first rotating sleeve, three second stirring frames are fixedly connected to the outer surface of the second rotating sleeve, and stirring blades are fixedly connected to the bottom of the second rotating sleeve, with the stirring blades located inside the first cylinder.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the crank drives the rack to reciprocate, which, in conjunction with the transmission gear, produces alternating clockwise and counterclockwise rotations. This rotation is transmitted through the transmission gear to the first rotating sleeve and the driving bevel gear, which in turn drives the symmetrical second driven bevel gear to rotate in the opposite direction. This rotation is further transmitted to the first driven bevel gear and the second rotating sleeve. The two rotating sleeves rotate synchronously and in opposite directions, ensuring the coordinated and alternating mixing of the first and second mixing frames. The staggered motion trajectories effectively avoid mixing dead zones, achieve uniform mixing, and significantly improve mixing efficiency and concrete quality.

[0014] 2. In this utility model, the drive motor drives the crank to perform circular motion through the belt transmission component, causing the rack to reciprocate under horizontal limit and stably transmit the force to the transmission gear. The transmission gear drives the first driven bevel gear and the second rotating sleeve to rotate synchronously through the opposite rotation of the active bevel gear and the second driven bevel gear, ensuring the coordinated operation of the mixing frame. At the same time, the mixing blades rotate continuously inside the cylinder, preventing the concrete from settling or clumping during storage, ensuring uniform mixing effect, and improving the quality stability of the concrete. Attached Figure Description

[0015] Figure 1 This utility model provides a schematic diagram of the overall three-dimensional structure of a double-cylinder concrete mixing device.

[0016] Figure 2 This utility model provides a partial three-dimensional structural diagram of a double-cylinder concrete mixing device.

[0017] Figure 3 A three-dimensional structural diagram of the mixing mechanism of a double-cylinder concrete mixing device is provided for this utility model.

[0018] Figure 4 This utility model presents a three-dimensional structural diagram of the disassembled mixing mechanism of a double-cylinder concrete mixing device.

[0019] Legend: 1. First cylinder; 2. Connecting cylinder; 3. Second cylinder; 4. Stirring mechanism; 41. Top plate; 42. Drive motor; 421. Belt drive component; 43. Crank; 44. Fixed rod; 45. First rotating sleeve; 451. First stirring frame; 452. Transmission gear; 453. Driving bevel gear; 46. Limiting frame; 461. Rack; 47. Second rotating sleeve; 471. Second stirring frame; 472. First driven bevel gear; 48. Rotating rod; 481. Second driven bevel gear; 49. Stirring blade. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figure 1 - Figure 4As shown, this utility model provides a double-cylinder concrete mixing device, including a first cylinder 1 and a second cylinder 3. A connecting cylinder 2 is fixedly connected to the bottom of the second cylinder 3, and the bottom of the connecting cylinder 2 is fixedly connected to the first cylinder 1. A mixing mechanism 4 is installed inside the second cylinder 3.

[0023] The stirring mechanism 4 includes a top plate 41 and a fixed rod 44. A crank 43 is rotatably connected to one end of the bottom of the top plate 41, and a rack 461 is rotatably connected to one end of the crank 43. The top end of the fixed rod 44 is fixedly connected to the top plate 41, and a transmission gear 452 is rotatably connected to the outer surface of the top end of the fixed rod 44. The transmission gear 452 meshes with the rack 461. A limit frame 46 is rotatably connected to the outer surface of the top end of the fixed rod 44. The inner side of the limit frame 46 is slidably connected to the rack 461. A first rotating sleeve 45 is fixedly connected to the bottom end of the transmission gear 452, and a driving bevel gear 453 is fixedly connected to the bottom of the first rotating sleeve 45. A rotating rod 48 is provided at the bottom of the first rotating sleeve 45. The rotating rod 48 is fixedly connected to the fixed rod 44, and a second driven bevel gear 481 is rotatably connected to the outer surfaces of both ends of the rotating rod 48. A second rotating sleeve 47 is rotatably connected to the outer surface of the bottom end of the fixed rod 44.

[0024] A first driven bevel gear 472 is fixedly connected to the top of the second rotating sleeve 47, and the first driven bevel gear 472 meshes with two second driven bevel gears 481. A feed inlet is provided on one outer surface of the second cylinder 3, and a support leg is fixedly connected to the outer surface of the first cylinder 1. A drive motor 42 is installed at the bottom of the top plate 41, and the bottom of the top plate 41 is fixedly connected to the top of the second cylinder 3. A belt drive component 421 is fixedly connected to the output end of the drive motor 42, and the belt drive component 421 is rotatably mounted on the top of the top plate 41. One end of the belt drive component 421 is fixedly connected to one end of a crank 43, which is located below the top plate 41. Three first stirring racks 451 are fixedly connected to the outer surface of the first rotating sleeve 45, and three second stirring racks 471 are fixedly connected to the outer surface of the second rotating sleeve 47. A stirring blade 49 is fixedly connected to the bottom of the second rotating sleeve 47, and the stirring blade 49 is located inside the first cylinder 1.

[0025] The specific setup and function of this embodiment will be described in detail below. In the concrete mixing equipment, a series of transmission components work together to achieve a highly efficient mixing effect. Specifically, the rotational motion of the crank 43 directly drives the rack 461. The rack 461 meshes with the transmission gear 452. When the crank 43 performs circular motion, the rack 461 produces reciprocating motion, rather than simple linear motion. This reciprocating motion, in conjunction with the transmission gear 452, continuously changes the direction of the force applied to the transmission gear 452, enabling the transmission gear 452 to rotate alternately clockwise and counterclockwise.

[0026] The alternating rotation of the transmission gear 452 is further transmitted to the first rotating sleeve 45, which drives the driving bevel gear 453 to rotate as it rotates. The rotation of the driving bevel gear 453 exerts a force on the second driven bevel gears 481 on both sides, causing them to start rotating as well. Due to the symmetry of the gear structure, the two second driven bevel gears 481 rotate in opposite directions. When they act simultaneously on the first driven bevel gear 472, they drive the first driven bevel gear 472 to rotate synchronously with the second rotating sleeve 47.

[0027] In this process, the second rotating sleeve 47 rotates in the opposite direction to the first rotating sleeve 45. This reverse rotation pattern ensures that the first stirring frame 451 and the second stirring frame 471 can move in a complementary manner during the stirring process. As the first rotating sleeve 45 rotates alternately clockwise and counterclockwise under the push of the rack 461, the second rotating sleeve 47 also achieves the same alternating rotation pattern. This synchronous but opposite movement drives the first stirring frame 451 and the second stirring frame 471 mounted on the two rotating sleeves.

[0028] In actual mixing operations, the first mixing rack 451 and the second mixing rack 471 push, pull, and agitate the concrete respectively, creating a multi-directional mixing effect that results in more uniform mixing and higher efficiency. Because the movement trajectories of these two mixing racks intersect, dead zones in one direction of mixing are avoided, effectively improving the uniformity and quality of the concrete. This design not only improves the mixing effect but also makes the entire process more stable and reliable, helping to complete the uniform mixing of large quantities of concrete in a short time and meeting the requirements of high-efficiency production.

[0029] The overall effect of this embodiment is that, in the concrete mixing equipment, when the drive motor 42 starts, it drives the crank 43 to perform circular motion via the belt drive 421. This process transmits the rotational motion of the crank 43 to the rack 461, causing the rack 461 to reciprocate. Because the limit frame 46 restricts the vertical direction of the rack 461, the movement of the rack 461 is kept in the horizontal direction, thereby ensuring that the force transmission to the transmission gear 452 is stable and continuous, and is not disturbed by the vertical direction.

[0030] During this transmission process, the transmission gear 452 transmits the alternating rotational motion to the first rotating sleeve 45, causing it to drive the active bevel gear 453. The rotational force of the active bevel gear 453 is transmitted to the two second driven bevel gears 481. Due to the gear structure design, the two rotate in opposite directions and together drive the first driven bevel gear 472. The motion of the first driven bevel gear 472 is transmitted to the second rotating sleeve 47, causing it to rotate synchronously and alternately with the first rotating sleeve 45. The first mixing frame 451 and the second mixing frame 471 work together to uniformly mix the concrete.

[0031] During the actual mixing process, the second rotating sleeve 47 also drives the mixing blade 49 connected to it to rotate, ensuring that the mixing blade 49 continuously mixes the concrete inside the first cylinder 1. This continuous rotational mixing can prevent the concrete from settling or clumping during storage, ensuring its consistency and uniformity.

[0032] The device's operation and working principle are as follows: When the drive motor 42 runs, it drives the belt drive component 421, which in turn drives the crank 43 in a circular motion, thus propelling the rack 461. During the rack 461's movement, due to the limitation of the limit bracket 46, the rack 461 does not move in the vertical direction, ensuring a stable force transmission to the transmission gear 452 during reciprocating motion. When the rack 461 applies force to the transmission gear 452, due to the circular motion of the crank 43, the rack 461 does not move linearly but reciprocates, causing the transmission gear 452 to rotate alternately clockwise and counterclockwise.

[0033] In this process, the transmission gear 452 transmits force to the first rotating sleeve 45, thereby driving the movement of the driving bevel gear 453. When the driving bevel gear 453 rotates, it applies force to the two second driven bevel gears 481. As these two second driven bevel gears 481 begin to rotate, their rotation directions are opposite, and they simultaneously apply force to the first driven bevel gear 472, thereby causing the second rotating sleeve 47 to begin to rotate. At this time, the rotation direction of the second rotating sleeve 47 is opposite to that of the first rotating sleeve 45.

[0034] Because the first rotating sleeve 45 rotates alternately clockwise and counterclockwise during its rotation, the second rotating sleeve 47 will also rotate alternately in the same manner. When the first rotating sleeve 45 and the second rotating sleeve 47 begin to move, they respectively drive the first mixing frame 451 and the second mixing frame 471 to perform mixing operations. Under the synergistic action of the first mixing frame 451 and the second mixing frame 471, the concrete can be mixed quickly, thereby improving the mixing effect and efficiency.

[0035] During the concrete mixing process, the second rotating sleeve 47 also drives the mixing blade 49 to rotate, so that the mixing blade 49 continuously mixes the concrete inside the first cylinder 1. Continuous mixing during the storage of concrete in the first cylinder 1 ensures the quality of the concrete.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A double-cylinder concrete mixing device, comprising a first cylinder (1) and a second cylinder (3), wherein a connecting cylinder (2) is fixedly connected to the bottom of the second cylinder (3), and the bottom of the connecting cylinder (2) is fixedly connected to the first cylinder (1), characterized in that: A stirring mechanism (4) is installed inside the second cylinder (3); The stirring mechanism (4) includes a top plate (41) and a fixed rod (44). A crank (43) is rotatably connected to the bottom of one end of the top plate (41), and a rack (461) is rotatably connected to one end of the crank (43). The top end of the fixed rod (44) is fixedly connected to the top plate (41), and a transmission gear (452) is rotatably connected to the outer surface of the top end of the fixed rod (44). The transmission gear (452) meshes with the rack (461). A limit frame (46) is rotatably connected to the outer surface of the top end of the fixed rod (44). The inner side of the limit frame (461) is slidably connected to the rack (461). The transmission gear (452) is rotatably connected to the rack (461). 52) A first rotating sleeve (45) is fixedly connected to the bottom end, and a driving bevel gear (453) is fixedly connected to the bottom of the first rotating sleeve (45). A rotating rod (48) is provided at the bottom of the first rotating sleeve (45). The rotating rod (48) is fixedly connected to the fixed rod (44), and a second driven bevel gear (481) is rotatably connected to the outer surfaces of both ends of the rotating rod (48). A second rotating sleeve (47) is rotatably connected to the outer surface of the bottom end of the fixed rod (44). A first stirring rack (451) is connected to the first rotating sleeve (45), and a second stirring rack (471) is connected to the second rotating sleeve (47). The top of the second rotating sleeve (47) is fixedly connected to a first driven bevel gear (472), which meshes with two second driven bevel gears (481).

2. The double-cylinder concrete mixing device according to claim 1, characterized in that: The second cylinder (3) has a feed inlet on one side of its outer surface, and the first cylinder (1) has a support leg fixedly connected to its outer surface.

3. The double-cylinder concrete mixing device according to claim 1, characterized in that: A drive motor (42) is installed at the bottom of the top plate (41), and the bottom of the top plate (41) is fixedly connected to the top of the second cylinder (3). A belt drive component (421) is fixedly connected to the output end of the drive motor (42). The belt drive component (421) is rotatably installed on the top of the top plate (41). One end of the belt drive component (421) is fixedly connected to one end of the crank (43). The crank (43) is located below the top plate (41).

4. A double-cylinder concrete mixing device according to claim 1, characterized in that: The outer surface of the first rotating sleeve (45) is fixedly connected with three first stirring racks (451), the outer surface of the second rotating sleeve (47) is fixedly connected with three second stirring racks (471), and the bottom of the second rotating sleeve (47) is fixedly connected with stirring blades (49), which are located inside the first cylinder (1).

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