Mixing drum and mixer truck
By installing a sealing baffle inside the mixing drum, the mixing area is increased and a thrust is generated at the guide cylinder, which solves the problems of concrete overflow and insufficient loading, and achieves more efficient concrete transportation.
Patent Information
- Application Number
- CN202422523426.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Existing concrete mixing drums, without changing their size and installation angle, have limited loading capacity and are prone to overflow, making it difficult to increase loading capacity and transportation efficiency.
A sealing baffle consisting of four fan-shaped main plates and two triangular connecting plates is fixed on the blade assembly and arranged along the axis of the mixing drum. It rotates with the blade assembly, increasing the mixing area and generating thrust at the guide cylinder to prevent concrete overflow and increase the loading capacity.
It effectively prevents concrete overflow, increases the loading capacity and transportation efficiency of the mixing drum, reduces transportation costs, and enhances the economic benefits of the mixer truck.
Smart Images
Figure CN223466492U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of engineering machinery, in particular to a kind of mixing drum for concrete mixer truck and the mixing drum with above-mentioned mixing drum of having. BACKGROUND
[0002] The mixing drum of concrete mixing truck is the loading container of concrete, the mixing drum is equipped with blade, when the mixing drum rotates, the concrete loaded therein can move along the spiral direction of blade, to ensure the uniformity of concrete during transportation. But in the prior art, the loading capacity is relatively limited when the size and installation angle of the mixing drum are unchanged, and concrete is prone to overflow when the mixing drum rotates. And due to the limitation of mold, tooling and other factors, it is difficult and costly to increase the loading capacity by directly expanding the volume of the mixing drum or changing the installation method or the basic structure of the blade. Therefore, it is difficult and urgent to increase the loading capacity without changing the size, installation angle and basic structure of the mixing drum. SUMMARY
[0003] Therefore, the utility model aims at providing a kind of mixing drum for concrete truck and the mixing truck with the mixing drum, which can effectively prevent concrete from overflowing while ensuring the efficiency of concrete mixer truck, thereby increasing the loading capacity of the mixing drum.
[0004] The utility model provides a kind of mixing drum in the embodiment of one aspect, including the rotatable main cylinder for containing the material to be stirred, and the blade assembly and the material blocking baffle being arranged in main cylinder;Wherein blade assembly is fixed on the inner wall of main cylinder, the inside of one end of main cylinder is formed with the guide cylinder for inputting material into main cylinder, material blocking baffle is fixed on blade assembly and is adjacent to the internal opening of guide cylinder arrangement, for preventing the material in main cylinder from overflowing through guide cylinder when main cylinder rotates.
[0005] Further, the material blocking baffle includes four fan-shaped main plates and two triangular connecting plates, every two of the four main plates are combined into a combined plate, the straight edges of the two combined plates are oppositely arranged and obliquely intersected with each other to form a baffle included angle, and the two connecting plates are respectively connected between the straight edges of the two combined plates.
[0006] Further, the material blocking baffle includes four fan-shaped main plates, and the four main plates are spliced into two combined plates separated from each other, and the combined plates are respectively connected to one blade of the blade assembly.
[0007] Further, the two connecting plates are symmetrically arranged about the central axis of the main cylinder.
[0008] Further, the center of the material blocking baffle is provided with a through air pressure balance hole.
[0009] Further, the projection area of the material blocking baffle along the axis on the plane where the inlet of the material guiding cylinder is located is greater than or equal to the area of the inlet of the material guiding cylinder.
[0010] Further, the vane assembly forms a plurality of spiral vane structures on the inner wall of the main cylinder body, and at least two spiral vane structures closest to the end of the main cylinder body are arranged around the material guiding cylinder.
[0011] Further, the material blocking baffle is connected with the at least two spiral vane structures adjacent to the internal opening of the material guiding cylinder.
[0012] A mixer truck comprising the mixing drum.
[0013] The mixing drum for the concrete mixer truck and the mixer truck with the mixing drum provided by the utility model adopt the material blocking baffle which is formed in an integrated mode by fixed connection of four main body plates in the shape of a sector and two connecting plates in the shape of a triangle. On the one hand, the material blocking baffle is arranged along the axis of the mixing drum and is fixed between the vane assemblies, and it rotates together with the vane assemblies, so that the mixing area is increased and the transportation efficiency of the mixer truck is improved. On the other hand, the material blocking baffle is arranged between the vane assemblies close to the internal opening end of the material guiding cylinder in the mixing drum, and a forward thrust is generated from the vane at the internal opening end of the material guiding cylinder, so that the backflow of the concrete is slowed down, the concrete in the mixing drum is blocked, the overflow of the concrete is prevented more effectively, the loading capacity of the mixing drum is improved, and the transportation efficiency of the mixer truck is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0015] Figure 1 The schematic diagram of the mixing drum provided by a preferred embodiment of the utility model.
[0016] Figure 2 For Figure 1 The schematic diagram of the material blocking baffle of the mixing drum.
[0017] In the drawing: main cylinder body 1, vane assembly 2, material guiding cylinder 3, flow-through hole 30, material guiding section 3A, material blocking section 3B, material blocking baffle 4, main body plate 40, combined plate 41, connecting plate 42, air pressure balance hole 43. DETAILED DESCRIPTION
[0018] Specific embodiments of the present application will be described in detail hereinafter with reference to the drawings. Obviously, the described embodiments are only a part but not all of the embodiments of the present application. Based upon the description of the present application, all other embodiments obtained by those ordinarily skilled in the art without creative effort are within the scope of the present application.
[0019] As Figure 1 shown, the embodiment of the present application provides a stirring drum for being installed on a stirring truck, which comprises a rotatable main drum body 1 for containing the concrete being stirred, and a blade assembly 2 and a material blocking baffle 4 arranged in the main drum body 1; wherein the blade assembly 2 is fixed on the inner wall of the main drum body 1, the inner side of one end of the main drum body 1 is formed with a material guiding drum 3 for inputting the concrete into the main drum body 1, and the material blocking baffle 4 is fixed on the blade assembly 2 and arranged adjacent to the internal opening of the material guiding drum 3 for preventing the material in the main drum body 1 from overflowing through the material guiding drum 3 when the main drum body 1 rotates.
[0020] The blade assembly 2 forms a plurality of spiral blade structures on the inner wall of the main drum body 1, when the stirring drum rotates, the concrete will move along the spiral direction of the blade assembly, and is subjected to mixing and stirring in the process of continuous lifting and turning; the material blocking baffle 4 is connected with at least two spiral blade structures near the internal opening of the material guiding drum 3, and the material blocking baffle 4 and the blade assembly 2 can be fixedly connected in any one or more of welding, bolting or riveting. The material blocking baffle 4 is fixedly connected with the blade assembly 2 and rotates together with the blade assembly 2, which can increase the stirring area and make the concrete mixing more uniform, thereby improving the transportation efficiency of the stirring truck.
[0021] The material guiding drum 3 is a cylinder arranged at one end of the main drum body 1, which comprises a material guiding section 3A and a material blocking section 3B, the material blocking section 3B is adjacent to the material blocking baffle 4 at one end, and the outer end of the material guiding section 3A is a feeding port for inputting the concrete into the main drum body 1, wherein the material blocking section 3B is provided with a plurality of uniformly distributed through-flow holes 30, which are helpful to improve the flowability of the concrete during stirring and prevent the concrete from overflowing. In addition, the plurality of spiral blade structures of the blade assembly 2 are connected with the outer wall of the material guiding drum 3 in a surrounding manner, and the blade assembly 2 and the material guiding drum 3 can be fixedly connected by welding or the like.
[0022] As Figure 2As shown, the seal baffle 4 includes four fan-shaped main plates 40 and two triangular connecting plates 42, each two main plates 40 form an included angle to adapt to the blade shape, but in further embodiments, the included angle between adjacent main plates 40 can be cancelled, and the outer arc edges of the two main plates 40 are smoothly transitioned to form a combined plate 41; the straight edges of the two combined plates 41 are oppositely arranged and obliquely intersected with each other to form a baffle included angle of 30-60°, the two connecting plates 42 are arranged in the same plane, and the two combined plates 41 are perpendicular to the plane where the connecting plates 42 are located; the two connecting plates 42 are connected between the straight edges of the two combined plates 41, so as to form an integral whole. The four main plates 40 and the two connecting plates 42 can be separately manufactured and then fixedly connected by welding or other methods, or can be integrally formed by casting or stamping. In further embodiments, the connecting plates 42 can be removed to reduce weight, wherein the four main plates 40 are combined into two separate combined plates 41, and each combined plate 41 is connected to one blade of the blade assembly 2. During the mixing process, the seal baffle 4 generates a forward end pushing force on the concrete, thereby forming a sealing effect on the concrete, preventing the concrete from overflowing from the material guide cylinder 3 during the mixing and transportation process, especially when the mixer truck is on an uphill or bumpy road, thereby achieving the effect of increasing the loading capacity of the mixing drum without changing the size and angle of the mixing drum.
[0023] The seal baffle 4 is provided with a gas pressure balance hole 43 passing through the center, which can function to exhaust and ensure the gas pressure balance in the mixing drum, and the shape and arrangement of the seal baffle 4 can also ensure the dynamic balance of the inside of the mixing drum. The projection area of the seal baffle 4 along the axis of the mixing drum on the plane where the inlet of the material guide cylinder 3 is located is greater than or equal to the area of the inlet of the material guide cylinder 3. In addition, the two connecting plates 42 are symmetrically arranged about the central axis of the main cylinder body 1, so that the weight of the mixing drum is evenly distributed, ensuring the stability and balance of the mixing drum during rotation. The main plates 40 and the connecting plates 42 of the seal baffle 4 are made of high-strength wear-resistant materials, which improves the service life of the seal baffle structure and reduces the production cost.
[0024] In summary, the above-mentioned embodiment of the utility model provides a kind of stirring drum, it is fixedly connected to form an integrated material sealing baffle 4 by including four fan-shaped main body plate 40 and two triangular connecting plate 42, wherein, two connecting plate 42 are symmetrically arranged about the central axis of main cylinder 1, make the weight distribution of stirring drum uniform, guarantee the stability and balance when stirring drum rotates;Material sealing baffle 4 center is equipped with the air pressure balance hole 43 that penetrates, play the role of exhaust and guarantee the air pressure balance in stirring drum.One hand, material sealing baffle 4 is arranged along the axis of stirring drum, and is fixed between blade assembly 2, it rotates along with blade assembly 2, can increase stirring area, improve the transport efficiency of mixing transport vehicle;The other hand, material sealing baffle 4 is arranged between blade assembly 2 in the stirring drum close to the material sealing section 3B of guide material cylinder 3, generate the thrust from the blade of the material sealing section 3B of guide material cylinder 3 to forward, slow down the reflux of concrete, realize the plugging of concrete in stirring drum, to improve the loading capacity of stirring drum, further improve the transport efficiency of mixing transport vehicle.
[0025] According to the prior art, in order to save time and prevent concrete from caking, the material to be mixed, such as concrete, is usually added to the stirring drum when the mixing truck starts; during the transportation, the control system of the mixing truck controls the stirring drum to keep rotating continuously, and the blade assembly 2 arranged in the stirring drum drives the concrete to rotate forward in the stirring drum during the mixing process. Under the action of the blades, the concrete is lifted to a high position and then falls due to gravity, so that it is uniformly mixed and stirred in the process of continuous lifting and turning to prevent the concrete from solidifying in the stirring drum. However, in the above-mentioned prior art, the concrete is easy to overflow outward in a certain vortex shape due to the centrifugal force, especially when the mixing truck encounters an uphill or a bumpy road.
[0026] Based on the above problems, the other embodiment of the utility model provides a mixing truck comprising the stirring drum described in the above-mentioned embodiment. In the stirring drum described in the above-mentioned embodiment, the material sealing baffle 4 is arranged along the axis of the stirring drum and is arranged between the blade assembly 2, which increases the thrust from the blade of the material sealing section 3B of the guide material cylinder 3 to forward and produces a plugging effect on the concrete. Under the premise of preventing the concrete in the main cylinder 1 of the mixing truck from overflowing through the guide material cylinder 3, the stirring area of the blade and the loading capacity of the stirring drum are also increased, which further improves the transport efficiency of the mixing truck, reduces the transportation cost, and increases the economic benefit of the operator. After arriving at the destination, the control system of the mixing truck can control the stirring drum to rotate reversely, so that the concrete in the stirring drum is pushed out along the rotational flow formed by the blade assembly 2 and is finally unloaded through the guide material cylinder 3.
[0027] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A drum, characterized by, The stirring barrel comprises a rotatable main cylinder for accommodating stirred materials, and a blade assembly and a material blocking baffle arranged in the main cylinder; wherein the blade assembly is fixed on the inner wall of the main cylinder, the inner side of one end of the main cylinder is formed with a material guiding cylinder for inputting materials into the main cylinder, the material blocking baffle is fixed on the blade assembly and arranged adjacent to the internal opening of the material guiding cylinder for preventing the materials in the main cylinder from overflowing through the material guiding cylinder when the main cylinder rotates; the material blocking baffle comprises four fan-shaped main body plates and two triangular connecting plates, every two of the four main body plates are combined as a combined plate, the straight edges of the two combined plates are oppositely arranged and obliquely intersected with each other to form a baffle included angle, and the two connecting plates are respectively connected between the straight edges of the two combined plates.
2. A bowl as claimed in claim 1, wherein The two connecting plates are symmetrically arranged about the central axis of the main cylinder.
3. The bowl of claim 1 wherein, A gas pressure balance hole is arranged at the center of the material blocking baffle.
4. The bowl of claim 1 wherein, The projection area of the material blocking baffle along the axis on the plane of the inlet of the material guiding cylinder is greater than or equal to the area of the inlet of the material guiding cylinder.
5. The bowl of claim 1 wherein, The blade assembly forms a plurality of spiral blade structures on the inner wall of the main cylinder, and at least two spiral blade structures closest to the end of the main cylinder are arranged around the material guiding cylinder.
6. A bowl as claimed in claim 5, wherein The material blocking baffle is connected with at least two spiral blade structures adjacent to the internal opening of the material guiding cylinder.
7. A mixer truck characterized by The stirring barrel comprises the stirring barrel as claimed in any one of claims 1-6.