Retaining ring structure, concrete mixing structure and mixing truck
By setting inclined baffles and limiting plates on the mixing drum, centrifugal force is used to guide the concrete to the discharge hopper, which solves the problem of easy concrete adhesion in the existing technology and achieves efficient cleaning and convenient maintenance of the mixing drum.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-10
AI Technical Summary
The existing flat baffle structure is prone to causing concrete to flow along the baffle and adhere to the surface of the mixing drum during the unloading process, which increases the difficulty of cleaning and maintenance, especially after long-term use when the accumulated material hardens, making cleaning more complicated.
The design employs an inclined baffle ring structure and a limiting plate, utilizing the centrifugal force of the rotating mixing drum to guide the concrete flow to the discharge hopper, reducing retention and adhesion. Combined with the synergistic effect of the baffle trough and the limiting plate, it achieves precise control and sealing effect.
It improves the cleanliness and ease of maintenance of the mixing drum, reduces material accumulation, and increases unloading efficiency and cleaning convenience.
Smart Images
Figure CN224103204U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to engineering equipment technical field, concretely relates to a baffle structure, concrete mixing structure and mixer truck. BACKGROUND
[0002] The mixer truck is a special vehicle for transporting concrete in construction engineering, and a core component of the mixer truck, a mixing drum, keeps the uniformity of concrete by rotating. As an important structure of the rear cone of the mixing drum, the baffle mainly undertakes the key role of limiting the flow of concrete and preventing material overflow, and the design thereof directly affects the unloading efficiency and equipment cleaning and maintenance. Currently, the industry generally adopts a double flat baffle structure, that is, two annular flat plates are installed on the surface of the rear cone of the mixing drum. This design forms an anti-overflow barrier through simple physical blocking, and a fixed spacing is maintained between the baffles to build an anti-overflow space.
[0003] However, the existing flat baffle structure has obvious defects in actual application: during the unloading process, concrete is easy to flow along the baffle and adhere to the surface of the tank, resulting in frequent material accumulation between the front and rear baffles of the rear cone, which not only affects the cleaning effect of the mixing drum, but also increases the difficulty of subsequent cleaning and maintenance, especially after long-term use, the accumulated material will gradually harden, further increasing the complexity of cleaning. SUMMARY
[0004] In view of at least one of the above defects or deficiencies of the prior art, the utility model provides a baffle structure, a concrete mixing structure and a mixer truck, which realizes precise control of the flow direction of concrete and reduces the accumulation of material.
[0005] To achieve the above-mentioned purpose, the utility model provides a baffle structure on one aspect, which is used for a mixing drum, the mixing drum has a rotating driving end, and the baffle structure comprises:
[0006] A first inclined baffle is connected to one end of the mixing drum away from the rotating driving end, and the first inclined baffle surrounds a horn-shaped material port;
[0007] A second inclined baffle is arranged on the outer surface of the mixing drum and located between the first inclined baffle and the rotating driving end, the inclined surface of the second inclined baffle towards the first inclined baffle is a material blocking inclined surface, the material blocking inclined surface, the outer circle surface of the first inclined baffle and the outer surface of the mixing drum surround a material blocking groove, and the cross-sectional dimension of the material blocking groove gradually increases from the outer surface of the mixing drum to the outward direction.
[0008] In some embodiments, the included angle formed between the first inclined baffle and the second inclined baffle is a first included angle, and the first included angle is 10°-85°.
[0009] In some embodiments, the bottom of the first inclined blocking ring is connected to the bottom of the second inclined blocking ring, and the cross section of the material blocking groove is arranged in a V shape.
[0010] Alternatively,
[0011] The bottom of the first inclined blocking ring and the bottom of the second inclined blocking ring are connected through the outer surface of the stirring drum, and the cross section of the material blocking groove is arranged in a U shape.
[0012] In some embodiments, the included angle between the material blocking slope and the outer surface of the stirring drum is a second included angle, and the second included angle is 10°-85°.
[0013] In some embodiments, the blocking ring structure further comprises a flat blocking ring arranged on the outer surface of the stirring drum, the second inclined blocking ring is located between the flat blocking ring and the first inclined blocking ring, and the flat blocking ring is provided with a material blocking flat surface.
[0014] The second aspect of the utility model provides a concrete mixing structure, the concrete mixing structure includes a stirring drum and a blocking ring structure as described above.
[0015] The third aspect of the utility model provides a mixer truck, which is installed with the blocking ring structure or the concrete mixing structure.
[0016] In some embodiments, the mixer truck further comprises:
[0017] A discharge hopper is connected to the material port of the stirring drum, a limiting plate is installed on the discharge hopper, the limiting plate extends into the material blocking groove, and one of the first inclined blocking ring and the second inclined blocking ring and the limiting plate form a sealed fit.
[0018] In some embodiments, the limiting plate is movably connected to the discharge hopper.
[0019] In some embodiments, the limiting plate is an elastic rubber part.
[0020] Through the above technical solution, the first inclined blocking ring and the second inclined blocking ring are arranged at the rear cone position of the stirring drum, which can effectively guide the flow of concrete to the discharge hopper, reduce the retention and adhesion of concrete around the blocking ring, and thus improve the cleanliness of the stirring drum. A circle of rubber plates is added to the edge of the discharge hopper to block the flow of concrete to the outside of the stirring drum during unloading. The blocking ring structure of the utility model makes full use of the centrifugal force during the rotation of the stirring drum, realizes precise control of the flow direction of concrete, reduces the accumulation of materials, and at the same time realizes more efficient concrete guidance and sealing effect through the synergistic effect of the blocking ring structure and the limiting plate, significantly improves the cleanliness and maintenance convenience of the stirring drum; the limiting plate has good elasticity and sealing performance, can effectively prevent concrete from overflowing, and is convenient to clean and maintain.
[0021] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0022] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, illustrate the embodiments of the present application and explain the embodiments of the present application together with the following detailed description, but do not limit the embodiments of the present application. For those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor. In the drawings:
[0023] Figure 1 is a schematic view of the blocking ring structure in the present application;
[0024] Figure 2 is a schematic view of another embodiment of the blocking ring structure in the present application;
[0025] Figure 3 is a schematic view of the structure of the blocking ring structure and the discharge hopper in the present application;
[0026] Figure 4 is Figure 3 is an enlarged view of A in the present application;
[0027] EXPLANATION OF REFERENCE NUMERALS
[0028] 10 blocking ring structure 11 first inclined blocking ring
[0029] 12 second inclined blocking ring 13 material blocking groove
[0030] 14 flat blocking ring 20 stirring drum
[0031] 30 discharge hopper 31 limiting plate
[0032] 21 material port DETAILED DESCRIPTION
[0033] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.
[0034] The present application will be described in detail below with reference to the accompanying drawings and in combination with exemplary embodiments.
[0035] As Figure 1As shown, the utility model provides a kind of baffle structure, for stirring drum 20, stirring drum 20 has rotary drive end, rotary drive end is set in the front end of stirring drum 20, i.e. the end close to the cab of mixer truck, stirring drum 20 is connected the driving element on mixer truck by rotary drive end, is driven to rotary drive end by driving element, can realize the rotary drive of stirring drum 20, baffle structure 10 includes first inclined baffle 11 and second inclined baffle 12, first inclined baffle 11 is connected on the end of stirring drum 20 away from rotary drive end, and first inclined baffle 11 is surrounded horn-shaped material port 21, material port 21 can be supplied with loading or unloading, stirring drum 20 is provided with stirring vane, by driving clockwise rotation or counterclockwise rotation of stirring vane, can be guided into stirring drum 20, or export stirring drum 20 outside. Centrifugal force when stirring drum 20 rotates is utilized, can effectively guide out material direction, realize the accurate control of concrete flow direction, reduce the accumulation phenomenon;Second inclined baffle 12 is set on the outer surface of stirring drum 20 and is located between first inclined baffle 11 and rotary drive end, the inclined surface of second inclined baffle 12 towards first inclined baffle 11 is baffle material inclined surface, baffle material inclined surface, the outer circle surface of first inclined baffle 11 and the outer surface of stirring drum 20 form baffle groove 13, the cross-sectional dimension of baffle groove 13 gradually increases from the outer surface of stirring drum 20 to the direction outward.Set baffle groove 13, avoid concrete slurry backflow to the outer surface of stirring drum 20 when discharging, the cross-sectional dimension of baffle groove 13 gradually increases from the outer surface of stirring drum 20 to the direction outward, can effectively avoid accumulation.
[0036] In use, when stirring drum 20 rotates, concrete moves to the outside under the action of centrifugal force, since first inclined baffle 11 is set to be horn-shaped, the inclination angle of first inclined baffle 11 can effectively guide concrete slurry to move along its inclined surface, avoiding concrete to stay or accumulate around the baffle;Baffle groove 13 formed by baffle material inclined surface, the outer circle surface of first inclined baffle 11 and the outer surface of stirring drum 20 can throw concrete slurry outwards, while preventing concrete from flowing to the outer surface of stirring drum 20, this design not only reduces the adhesion of concrete to the outer surface of stirring drum 20, but also reduces the difficulty of cleaning. Through the guiding action of baffle structure 10, concrete can flow to discharge hopper 30 during unloading, avoiding concrete to overflow or flow to the outer surface of stirring drum 20, thereby improving the overall cleanliness and unloading efficiency of stirring drum 20.
[0037] In some embodiments, the included angle formed between first inclined baffle 11 and second inclined baffle 12 is a first included angle, and the first included angle is 10°-85°. The included angle has the effect of guiding flow, can throw concrete slurry outwards, while preventing concrete from flowing to the outer surface of stirring drum 20, the inclination angle of 10°-85° can effectively guide concrete slurry to move along its inclined surface, avoiding concrete to stay or accumulate around the baffle, which can further ensure the functions of stopping concrete and guiding flow, and can make the effect of guiding flow better.
[0038] In some embodiments, as shown in Figure 1 the bottom of the first inclined blocking ring 11 is connected to the bottom of the second inclined blocking ring 12, and the cross section of the material blocking groove 13 is arranged in a V shape; that is, the bottom of the first inclined blocking ring 11 is connected to the bottom of the second inclined blocking ring 12, the material blocking groove 13 is formed by the first inclined blocking ring 11 and the second inclined blocking ring 12, and the opening of the material blocking groove 13 faces the outer side of the stirring drum 20. When the stirring drum 20 rotates, the first blocking ring guides the concrete slurry for the first time, and if the concrete slurry accidentally flows into the material blocking groove 13, the material blocking groove 13 guides the concrete slurry for the second time. By using the centrifugal force when the stirring drum 20 rotates, the concrete slurry is thrown out in the direction of the opening of the material blocking groove 13, so as to avoid the concrete from accumulating on the outer surface of the stirring drum 20.
[0039] In another embodiment, as shown in Figure 2 the bottom of the first inclined blocking ring 11 is connected to the bottom of the second inclined blocking ring 12, and the cross section of the material blocking groove 13 is arranged in a V shape; that is, the bottom of the first inclined blocking ring 11 is connected to the bottom of the second inclined blocking ring 12, the material blocking groove 13 is formed by the first inclined blocking ring 11 and the second inclined blocking ring 12, and the opening of the material blocking groove 13 faces the outer side of the stirring drum 20. When the stirring drum 20 rotates, the first blocking ring guides the concrete slurry for the first time, and if the concrete slurry accidentally flows into the material blocking groove 13, the material blocking groove 13 guides the concrete slurry for the second time. By using the centrifugal force when the stirring drum 20 rotates, the concrete slurry is thrown out in the direction of the opening of the material blocking groove 13, so as to avoid the concrete from accumulating on the outer surface of the stirring drum 20.
[0040] The material blocking groove 13 can throw the concrete slurry outwards, and at the same time prevent the concrete from flowing to the outer surface of the stirring drum 20. This design not only reduces the adhesion of the concrete to the outer surface of the stirring drum 20, but also reduces the difficulty of cleaning.
[0041] In some embodiments, the angle between the material blocking inclined surface and the outer surface of the stirring drum 20 is a second angle, and the second angle is 10°-85°. Specifically, the second angle is the angle between the normal projection of the material blocking inclined surface on the vertical plane of the central axis of the stirring drum 20 and the normal projection of the outer surface of the stirring drum 20 on the same reference plane. If the angle between the material blocking inclined surface and the outer surface of the stirring drum 20 is too large, it is close to vertical and cannot achieve the guiding effect. If the angle between the material blocking inclined surface and the outer surface of the stirring drum 20 is too small, it is close to parallel, and the concrete slurry will flow along the material blocking inclined surface to the outer surface of the stirring drum 20. Therefore, the second angle is 10°-85°, which can ensure good flow guiding effect and prevent the concrete from splashing onto the outer surface of the stirring drum 20.
[0042] In some embodiments, the baffle ring structure 10 further comprises a flat baffle ring 14 arranged on the outer surface of the mixing drum 20, the second inclined baffle ring 12 is located between the flat baffle ring 14 and the first inclined baffle ring 11, and the flat baffle ring 14 is provided with a material blocking plane. The flat baffle ring 14 is arranged perpendicular to the central axis of the mixing drum 20, and during the discharging process of the mixing drum 20, the concrete flows out of the mixing drum 20 along the first inclined baffle ring 11, and if a small amount of concrete flows along the second inclined baffle ring 12, flows to the outer surface of the mixing drum 20, the flat baffle ring 14 can play a role in secondary material blocking.
[0043] The utility model discloses a second aspect provides a kind of concrete mixing structure, and concrete mixing structure includes mixing drum 20 and as above-mentioned baffle ring structure 10.
[0044] The utility model discloses a third aspect provides a kind of mixer truck, installs above-mentioned baffle ring structure 10, or installs above-mentioned concrete mixing structure.
[0045] In some embodiments, as shown in Figure 3 And Figure 4 The utility model discloses a third aspect provides a kind of mixer truck, installs above-mentioned baffle ring structure 10, or installs above-mentioned concrete mixing structure.
[0046] In some embodiments, the limiting plate 31 is movably connected to the discharge hopper 30. Specifically, the limiting plate 31 has a vertically arranged waist-shaped hole, and the discharge hopper 30 has a corresponding circular mounting hole. A bolt passes through the mounting hole and the waist-shaped hole in sequence to fasten the limiting plate 31 and the discharge hopper 30. If the height of the limiting plate 31 needs to be adjusted, the bolt is loosened, and the height of the limiting plate 31 is adjusted by adjusting the position of the bolt in the waist-shaped hole. After the position is determined, the bolt is tightened. If the position of the limiting plate 31 in the horizontal direction needs to be adjusted, i.e., the position of the limiting plate 31 in front, back, left and right needs to be adjusted, the position of the discharge hopper 30 can be adjusted. The limiting plate 31 can be adjusted to ensure its sealing effect. This design can further enhance the sealing performance without affecting normal discharging, preventing concrete from accumulating or leaking in the gap.
[0047] In some embodiments, the limiting plate 31 is a flexible rubber piece. The rubber material has good elasticity and sealing performance, which can effectively prevent concrete from overflowing, and is convenient to clean and maintain. At the same time, the elastic property of the limiting plate 31 can adapt to the slight vibration of the mixing drum 20 during operation, ensuring the stability of the sealing effect.
[0048] Through the above technical scheme, the first inclined check ring 11 and the second inclined check ring 12 are arranged at the rear cone position of the mixing drum 20, which can effectively guide the concrete to flow to the discharge hopper 30, reduce the retention and adhesion of the concrete around the check ring, and improve the cleanliness of the mixing drum 20. A circle of rubber plates is added to the edge of the discharge hopper 30 to block the flow of concrete to the outside of the mixing drum 20 during discharging. The check ring structure 10 of the utility model makes full use of the centrifugal force when the mixing drum 20 rotates, realizes precise control of the flow direction of the concrete, reduces the accumulation phenomenon, and at the same time realizes more efficient concrete guiding and sealing effect through the synergistic effect of the check ring structure 10 and the limiting plate 31, significantly improves the cleanliness and maintenance convenience of the mixing drum 20; the limiting plate 31 has good elasticity and sealing performance, which can effectively prevent concrete from overflowing, and is convenient to clean and maintain.
[0049] It should be noted that in the utility model, unless otherwise stated, the orientation words such as "up, down, left, right, front, back" generally refer to the directions indicated in the drawings.
[0050] In the description of the utility model, it should be understood that the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0051] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.
[0052] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.
[0053] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.
Claims
1. A retaining ring structure for a mixing bowl (20) having a rotary drive end, characterized by, The blocking ring structure (10) comprises: a first inclined blocking ring (11) connected to one end of the stirring drum (20) away from the rotary driving end, and the first inclined blocking ring (11) surrounds a horn-shaped material port (21); a second inclined blocking ring (12) arranged on the outer surface of the stirring drum (20) and located between the first inclined blocking ring (11) and the rotary driving end, the slope of the second inclined blocking ring (12) towards the first inclined blocking ring (11) is a material blocking slope, the material blocking slope, the outer surface of the first inclined blocking ring (11) and the outer surface of the stirring drum (20) form a material blocking groove (13), and the cross-sectional size of the material blocking groove (13) gradually increases from the outer surface of the stirring drum (20) to the outside.
2. The retainer ring structure of claim 1, wherein The included angle formed between the first inclined blocking ring (11) and the second inclined blocking ring (12) is a first included angle, and the first included angle is 10°-85°.
3. The retainer ring structure of claim 1, wherein The bottom of the first inclined blocking ring (11) is connected to the bottom of the second inclined blocking ring (12), and the cross section of the material blocking groove (13) is arranged in a V shape. Alternatively, The bottom of the first inclined blocking ring (11) and the bottom of the second inclined blocking ring (12) are connected through the outer surface of the stirring drum (20), and the cross section of the material blocking groove (13) is arranged in a U shape.
4. The check ring structure according to any one of claims 1 to 3, characterized in that The included angle between the material blocking slope and the outer surface of the stirring drum (20) is a second included angle, and the second included angle is 10°-85°.
5. The check ring structure according to any one of claims 1 to 3, characterized in that The blocking ring structure (10) further comprises a flat blocking ring (14) arranged on the outer surface of the stirring drum (20), the second inclined blocking ring (12) is located between the flat blocking ring (14) and the first inclined blocking ring (11), and the flat blocking ring (14) is provided with a material blocking flat surface.
6. A concrete mixing structure, characterized by, The concrete mixing structure comprises a stirring drum (20) and a blocking ring structure (10) according to any one of claims 1-5.
7. A mixer truck characterized by The blocking ring structure (10) according to any one of claims 1-5 is installed, or the concrete mixing structure according to claim 6 is installed.
8. The mixer truck of claim 7, wherein, The mixing truck further comprises: a discharge hopper (30) abutting the material port (21) of the stirring drum (20), a limiting plate (31) is installed on the discharge hopper (30), the limiting plate (31) extends into the material blocking groove (13), and one of the first inclined blocking ring (11) and the second inclined blocking ring (12) and the limiting plate (31) form a sealing fit.
9. The mixer truck of claim 8, wherein, The limiting plate (31) is movably connected to the discharge hopper (30).
10. The mixer truck of claim 8, wherein, The limiting plate (31) is an elastic rubber part.