Low-noise concrete mixing device
By using hydrogel and sound-absorbing cotton in the concrete mixing device to absorb noise, and combining it with heat conductive sheets and circulating water devices to dissipate heat, the problem of concrete mixing noise was solved, protecting the ecological environment and ensuring equipment operation.
Patent Information
- Application Number
- CN202422664512.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-01
AI Technical Summary
During road construction in mountainous areas, the high-frequency noise generated during the concrete mixing process is sharp and travels far, affecting the ecological environment. Existing sound insulation measures are complex and affect the heat dissipation of equipment.
A low-noise concrete mixing device is designed. Hydrogel with a water content greater than 80% is used as the sound-absorbing medium. It is combined with sound-absorbing cotton and a soundproof cover to absorb the noise generated during the mixing process. At the same time, heat is dissipated through heat conducting plates and a circulating water device.
It significantly reduces the noise propagation distance during the concrete mixing process, protects the ecological environment around the construction site, and ensures the normal operation of the equipment and the quality of concrete.
Smart Images
Figure CN223477983U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of noise reduction devices, and more specifically, to a low-noise concrete mixing device. Background Technology
[0002] In the construction of roads in mountainous areas, noise is inevitably generated during the construction process. Due to the long construction period, the noise can persist for a long time and cause irreversible damage to the surrounding ecological environment (mainly animals). Therefore, low-noise construction is essential.
[0003] Besides the noise from vehicles, the main noise generated during construction comes from the mixing, transfer, and pouring of concrete. The noise generated during concrete mixing and transportation is the greatest, primarily due to the high-frequency noise produced when large solid particles in the concrete collide with the mixing or transfer equipment. This type of noise is sharp, travels long distances, and is the most harmful. While sound-absorbing materials like cotton can be used to cover the conveying pipes to reduce noise during concrete transportation, this is less effective for concrete mixing due to the large size of the equipment. Furthermore, sound-absorbing materials or panels can hinder heat dissipation, leading to heat buildup that affects equipment operation and concrete quality. Therefore, a more efficient, low-noise concrete mixing system needs to be designed. Utility Model Content
[0004] The purpose of this invention is to provide a low-noise concrete mixing device that can significantly reduce the noise generated during concrete mixing.
[0005] The embodiments of this utility model are achieved through the following technical solutions: The low-noise concrete mixing device of this utility model includes a mixing tank, a support column for supporting the mixing tank, a stirring assembly disposed inside the mixing tank, a driving assembly connected to the stirring assembly, and a first sound insulation assembly sleeved on the outer wall of the mixing tank; the first sound insulation assembly includes a sound insulation cover sleeved on the outer wall and lower end wall of the mixing tank; a closed sound insulation cavity is provided between the sound insulation cover and the mixing tank, and a sound-absorbing medium is provided inside the sound insulation cavity.
[0006] Furthermore, the sound-absorbing medium comprises a hydrogel with a water content greater than 80%.
[0007] Furthermore, the sound-absorbing medium also includes sound-absorbing cotton disposed within the hydrogel.
[0008] Furthermore, the width of the sound insulation cavity is L, and the thickness of the sound-absorbing cotton is less than 0.5L.
[0009] Furthermore, the stirring assembly includes a rotating shaft that is rotatably and sealingly connected to the bottom wall of the mixing tank, blades disposed on the outer wall of the rotating shaft, and a driven wheel disposed at one end of the rotating shaft located outside the mixing tank; the driving assembly includes a motor, a driving wheel disposed on the output shaft of the motor, and a belt for connecting the driving wheel and the driven wheel.
[0010] Furthermore, the drive assembly also includes a pair of support rods connected to the side wall of the motor, and a support plate connected to the support rods; a second sound insulation assembly is sleeved on the outer wall of the motor; the second sound insulation assembly includes an inner housing sleeved on the outer wall of the motor, a first through hole opened at the upper end of the inner housing, a second through hole opened in the side wall of the inner housing, and a bearing provided at the first through hole; the output shaft of the motor passes through the bearing, and the support rod passes through the second through hole.
[0011] Furthermore, the second sound insulation component also includes a plurality of annular heat-conducting sheets disposed on the inner wall of the inner housing.
[0012] Furthermore, the second sound insulation component also includes an outer shell fitted onto the outer wall of the inner shell; a closed heat dissipation cavity is provided between the inner shell and the outer shell; a drain pipe is connected to the upper end of the heat dissipation cavity, and a water inlet pipe is connected to the lower end of the heat dissipation cavity; both the water inlet pipe and the drain pipe are connected to a circulating water device.
[0013] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects: The low-noise concrete mixing device of this utility model can absorb the noise generated during the mixing process by using a mixing tank to mix concrete. The noise generated during the mixing process is mainly caused by the collision of large solid particles (such as pebbles) with the side wall of the mixing tank. Therefore, by setting a soundproof cover and a sound-absorbing medium on the outer wall of the mixing tank, the vibration generated when the stones collide with the outer wall of the mixing tank is transmitted to the sound-absorbing medium and absorbed. Although it is difficult to completely eliminate noise, it can effectively absorb high-frequency noise. In this way, the propagation distance of the remaining noise is not far, which can effectively avoid affecting the environment around the construction site. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 A schematic diagram of the structure of the low-noise concrete mixing device provided in this embodiment of the utility model;
[0016] Figure 2 A schematic diagram of the internal structure of the low-noise concrete mixing device provided in this embodiment of the utility model;
[0017] Figure 3 This is a schematic diagram of the internal structure of the outer shell provided in an embodiment of the present utility model;
[0018] Figure 4 This is a schematic diagram of the motor portion provided in an embodiment of the present utility model;
[0019] Figure 5 This is a structural schematic diagram of the outer shell portion provided in an embodiment of the present utility model.
[0020] Icons: 11-Mixing tank, 12-Support column, 13-Shaft, 14-Blade, 15-Driven wheel, 21-Soundproof cover, 22-Soundproof cavity, 23-Soundproof cotton, 31-Motor, 32-Drive wheel, 33-Belt, 34-Support rod, 35-Support plate, 41-Inner shell, 42-Bearing, 43-Heat conduction plate, 44-Second through hole, 45-Outer shell, 46-Heat dissipation cavity, 47-Drain pipe, 48-Water inlet pipe. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0024] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Example
[0027] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 -Appendix Figure 5 As shown, the low-noise concrete mixing device of this embodiment includes a mixing tank 11, a support column 12 for supporting the mixing tank 11, a mixing assembly disposed inside the mixing tank 11, a drive assembly connected to the mixing assembly, and a first sound insulation assembly sleeved on the outer wall of the mixing tank 11; the first sound insulation assembly includes a sound insulation cover 21 sleeved on the outer wall and the lower end wall of the mixing tank 11; a closed sound insulation cavity 22 is provided between the sound insulation cover 21 and the mixing tank 11, and a sound-absorbing medium is provided inside the sound insulation cavity 22. Specifically, during the mixing process of concrete using the mixing tank 11, the noise generated during the mixing process can be absorbed by the soundproof cover 21 surrounding the side and bottom walls of the mixing tank 11 and the soundproof medium between the soundproof cover 21 and the side walls of the mixing tank 11. The noise during the mixing process is mainly generated by the collision of large solid particles (such as pebbles and other stones) with the side walls of the mixing tank 11. Therefore, by setting the soundproof cover 21 and the sound-absorbing medium on the outer wall of the mixing tank 11, the vibration generated when the stones collide with the outer wall of the mixing tank 11 is transmitted to the sound-absorbing medium and absorbed. Although it is difficult to completely eliminate noise, it can effectively absorb high-frequency noise. In this way, the propagation distance of the remaining noise is not far, which can effectively avoid affecting the environment around the construction site.
[0028] The sound-absorbing medium in this embodiment includes a hydrogel with a water content greater than 80%. Specifically, hydrogel is a type of gel-like solid containing a large amount of water. Hydrogel is used instead of water directly because water has better fluidity; if a leak occurs, water can easily flow out and contaminate the equipment. Hydrogel, on the other hand, has poor fluidity, making it difficult for it to leak out even if the seal is not secure, thus ensuring higher safety. Furthermore, the hydrogel raw material can be directly added to the sound insulation cavity 22, and then water can be added to allow the material to absorb the water, thus effectively and fully filling the sound insulation cavity 22. In this embodiment, a traditional acrylamide hydrogel can be used.
[0029] In this embodiment, the sound-absorbing medium also includes sound-absorbing cotton disposed within the hydrogel. The width of the sound insulation cavity 22 is L, and the thickness of the sound-absorbing cotton is less than 0.5L. Specifically, the sound-absorbing cotton can act as a certain skeleton, providing support for the hydrogel, and it can also occupy a certain space in the sound insulation cavity 22, thereby reducing the amount of hydrogel used.
[0030] The mixing assembly in this embodiment includes a rotating shaft 13 that is rotatably and sealingly connected to the bottom wall of the mixing tank 11, blades 14 disposed on the outer wall of the rotating shaft 13, and a driven wheel 15 disposed at one end of the rotating shaft 13 outside the mixing tank 11; the driving assembly includes a motor 31, a driving wheel 32 disposed on the output shaft of the motor 31, and a belt 33 for connecting the driving wheel 32 and the driven wheel 15. Specifically, the rotating shaft 13 can be driven to rotate by the motor 31, the driving wheel 32, the driven wheel 15, and the belt 33, thereby mixing the concrete raw materials by the blades 14.
[0031] The drive assembly in this embodiment also includes a pair of support rods 34 connected to the sidewall of the motor 31, and a support plate 35 connected to the support rods 34; a second sound insulation assembly is fitted onto the outer wall of the motor 31; the second sound insulation assembly includes an inner shell 41 fitted onto the outer wall of the motor 31, a first through hole at the upper end of the inner shell 41, a second through hole 44 at the sidewall of the inner shell 41, and a bearing 42 located at the first through hole; the output shaft of the motor 31 passes through the bearing 42, and the support rods 34 pass through the second through hole 44. The second sound insulation assembly also includes a plurality of annular heat-conducting fins 43 located on the inner wall of the inner shell 41. Specifically, by enclosing the motor 31 with the inner shell 41, the noise of the motor 31 during operation can be effectively reduced, and the heat generated by the motor 31 during operation is transferred to the heat-conducting fins 43 and then to the inner shell 41, thus achieving a certain heat dissipation effect.
[0032] The second sound insulation component in this embodiment also includes an outer shell 45 fitted onto the outer wall of the inner shell 41; a closed heat dissipation cavity 46 is provided between the inner shell 41 and the outer shell 45; a drain pipe 47 is connected to the upper end of the heat dissipation cavity 46, and a water inlet pipe 48 is connected to the lower end of the heat dissipation cavity 46; both the water inlet pipe 48 and the drain pipe 47 are connected to a circulating water device. Specifically, cooling water is sent into the heat dissipation cavity 46 between the inner shell 41 and the outer shell 45 through the circulating water device, which not only effectively cools the motor 31, but also forms a shell around the motor 31 through the water, which also effectively isolates high-frequency noise.
[0033] In summary, the low-noise concrete mixing device of this embodiment can absorb the noise generated during the mixing process of concrete using the mixing tank 11 through the soundproof cover 21 surrounding the side and bottom walls of the mixing tank 11 and the sound-absorbing medium between the soundproof cover 21 and the side wall of the mixing tank 11. The noise during the mixing process is mainly generated by the collision of large solid particles (such as pebbles and other stones) with the side wall of the mixing tank 11. Therefore, by setting the soundproof cover 21 and the sound-absorbing medium on the outer wall of the mixing tank 11, the vibration generated when the stones collide with the outer wall of the mixing tank 11 is transmitted to the sound-absorbing medium and absorbed. Although it is difficult to completely eliminate noise, it can effectively absorb high-frequency noise. Thus, the propagation distance of the remaining noise is not far, which can effectively avoid affecting the environment around the construction site.
[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A low-noise concrete mixing device, characterized in that: It includes a mixing tank (11), a support column (12) for supporting the mixing tank (11), a stirring assembly disposed in the mixing tank (11), a drive assembly connected to the stirring assembly, and a first sound insulation assembly sleeved on the outer wall of the mixing tank (11). The first sound insulation component includes a sound insulation cover (21) fitted on the outer side wall and the lower end wall of the mixing tank (11); a closed sound insulation cavity (22) is provided between the sound insulation cover (21) and the mixing tank (11), and a sound-absorbing medium is provided in the sound insulation cavity (22).
2. The low-noise concrete mixing device according to claim 1, characterized in that: The sound-absorbing medium includes a hydrogel with a water content greater than 80%.
3. The low-noise concrete mixing device according to claim 2, characterized in that: The sound-absorbing medium also includes sound-absorbing cotton disposed in the hydrogel.
4. The low-noise concrete mixing device according to claim 3, characterized in that: The width of the sound insulation cavity (22) is L, and the thickness of the sound-absorbing cotton is less than 0.5L.
5. The low-noise concrete mixing device according to claim 1, characterized in that: The stirring assembly includes a rotating shaft (13) that is rotatably and sealingly connected to the bottom wall of the mixing tank (11), blades (14) disposed on the outer wall of the rotating shaft (13), and a driven wheel (15) disposed at one end of the rotating shaft (13) located outside the mixing tank (11). The drive assembly includes a motor (31), a drive pulley (32) located on the output shaft of the motor (31), and a belt (33) for connecting the drive pulley (32) and the driven pulley (15).
6. The low-noise concrete mixing device according to claim 5, characterized in that: The drive assembly also includes a pair of support rods (34) connected to the side wall of the motor (31), and a support plate (35) connected to the support rods (34); The outer wall of the motor (31) is fitted with a second sound insulation component; the second sound insulation component includes an inner shell (41) fitted on the outer wall of the motor (31), a first through hole opened at the upper end of the inner shell (41), a second through hole (44) opened on the side wall of the inner shell (41), and a bearing (42) provided at the first through hole; The output shaft of the motor (31) passes through the bearing (42), and the support rod (34) passes through the second through hole (44).
7. The low-noise concrete mixing device according to claim 6, characterized in that: The second sound insulation component also includes a plurality of annular heat-conducting sheets (43) disposed on the inner wall of the inner housing (41).
8. The low-noise concrete mixing device according to claim 7, characterized in that: The second sound insulation component also includes an outer shell (45) fitted onto the outer wall of the inner shell (41); a closed heat dissipation cavity (46) is provided between the inner shell (41) and the outer shell (45); a drain pipe (47) is connected to the upper end of the heat dissipation cavity (46), and a water inlet pipe (48) is connected to the lower end of the heat dissipation cavity (46); both the water inlet pipe (48) and the drain pipe (47) are connected to a circulating water device.