Multi-stage wear-resistant mixing blade structure of concrete mixer

Abstract

The utility model provides a concrete mixer multistage wear-resistant mixing blade structure, which comprises a box body, a fixed cylinder and a rotating rod, a plurality of equidistantly distributed positioning blocks are fixedly arranged on the fixed cylinder, each positioning block is provided with two through holes, a plurality of fixed blades are arranged in the box body, and the rotating rod is arranged in the box body. Positioning grooves are formed in the multiple fixed blades, the multiple fixed blades are connected with the positioning block in an inserted mode through the positioning grooves, and multiple movable grooves distributed at equal intervals are formed in the multiple fixed blades. The length and the position of the movable blade can be adjusted according to actual requirements, so that the flowing track and the mixing mode of concrete in the box body are changed, materials with different components can be fully contacted, collided and mixed, the uniformity of the concrete is greatly improved, and the stable quality of the concrete is ensured; therefore, the device can meet the concrete stirring requirements of various different material characteristics.

Description

Technical Field

[0001] This utility model relates to a multi-stage wear-resistant mixing blade structure for concrete mixers. Background Technology

[0002] With the acceleration of urbanization, various large-scale infrastructure projects are emerging, such as high-rise buildings, cross-sea bridges, and large-scale water conservancy projects. These projects have a huge demand for concrete and extremely stringent requirements for its quality and performance. To meet the requirements of modern construction for high strength, high durability, and high fluidity in concrete, high-performance concrete has been widely used. The proportions and mix designs of various raw materials in high-performance concrete are more complex, placing higher demands on the uniformity and thoroughness of mixing. Multi-stage wear-resistant mixing blade structures can better adapt to these complex mixing requirements, ensuring stable concrete quality.

[0003] The existing concrete mixer blade structure has problems during use. Due to the uneven distribution of the mixing blades on the rotating rod, the various components of the concrete are subjected to uneven stress during the mixing process, which can easily lead to local over-mixing or under-mixing. In addition, the fixed structure of the mixing blades makes it difficult to turn over and disperse large aggregates in concrete containing large-sized aggregates, which cannot ensure that the materials are fully mixed. For some self-compacting concretes with good fluidity, over-mixing can easily lead to segregation. It cannot meet the mixing needs of concrete with different material properties. Utility Model Content

[0004] This invention addresses the technical problems of uneven distribution of mixing blades on the rotating rod during use, which leads to uneven stress on the components of concrete during mixing, easily resulting in local over- or under-mixing. Furthermore, the fixed structure of the mixing blades makes it difficult to agitate and disperse large aggregates in concrete, hindering thorough mixing. Conversely, for self-compacting concrete with good flowability, over-mixing can easily cause segregation. This invention fails to meet the mixing requirements of concrete with various material properties. Therefore, it provides a multi-stage wear-resistant mixing blade structure for concrete mixers.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a multi-stage wear-resistant mixing blade structure for a concrete mixer, including a housing, a fixed cylinder, and a rotating rod. Multiple equidistant positioning blocks are fixedly installed on the fixed cylinder, each positioning block having two through holes. Multiple fixed blades are arranged inside the housing, each fixed blade having a positioning groove. The fixed blades are inserted into the positioning blocks through the positioning grooves. Multiple equidistant movable grooves are arranged on each fixed blade, each movable groove containing a movable blade. Multiple equidistant first movable holes are arranged on each movable blade. Two second movable holes are provided on the side walls of the positioning grooves and the multiple movable grooves.

[0007] In this technical solution, multiple fourth bolts are provided on multiple fixed blades. Each of the multiple fourth bolts passes through the movable blade and the fixed blade through the first movable hole and two second movable holes, and is threaded with a fourth nut.

[0008] In this technical solution, each of the multiple fixed blades is provided with two fifth bolts. Each fifth bolt passes through the fixed blade and the connecting block through a through hole and two second movable holes, and is threaded with a fifth nut.

[0009] In this technical solution, a fixed cylinder is sleeved on the rotating rod, two second limiting holes are opened on the rotating rod, and four first limiting holes are opened on the fixed cylinder.

[0010] In this technical solution, the fixed cylinder is provided with two third bolts, both of which pass through the second limiting hole and the two first limiting holes and are threadedly connected to a third nut.

[0011] In this technical solution, a motor is fixedly installed on the housing, and a connecting plate is fixedly installed on one end of the output shaft and the rotating rod of the motor. Mounting holes are provided on both connecting plates.

[0012] In this technical solution, a plurality of first bolts are provided between the two connecting plates, and the plurality of first bolts pass through the mounting holes on the two mounting plates and are threadedly connected to first nuts.

[0013] In this technical solution, a mounting plate is provided on the box body, and a plurality of second bolts are provided on the mounting plate. The mounting plate is fixed to the box body by the plurality of second bolts.

[0014] In this technical solution, the mounting plate is provided with a feed inlet, and the mounting plate is connected to a feed pipe at the feed inlet position. A dust cover is threaded onto the feed pipe.

[0015] In this technical solution, the bottom end of the box is connected to a feeding pipe, a valve is provided on the feeding pipe, one end of the rotating rod extends into the interior of the feeding pipe, and the rotating rod has a spiral blade at the position of the feeding pipe.

[0016] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0017] The positive and progressive effects of this utility model are as follows:

[0018] The multi-stage wear-resistant mixing blade structure of the concrete mixer proposed above uses a fifth bolt and a fifth nut to fix a fixed number of blades on the fixed cylinder. This results in a regular and symmetrical distribution of multiple fixed blades on the fixed cylinder, making the force on each component of the concrete more uniform during the mixing process. This avoids local over-mixing or under-mixing, thereby significantly improving the uniformity and quality of the concrete. At the same time, the position of the fixed blades can be flexibly adjusted according to the type of concrete, the size of the aggregate, and the mixing requirements to adapt to different mixing needs and enhance mixing efficiency.

[0019] The movable blades can be adjusted in length and position according to actual needs, thereby changing the flow trajectory and mixing mode of concrete within the box. This allows materials of different components to fully contact, collide, and mix, greatly improving the homogeneity of the concrete and ensuring stable quality. For concrete containing large-diameter aggregates, longer movable blades can better agitate and disperse the large aggregates, ensuring thorough mixing with other materials. Conversely, for self-compacting concrete with good flowability, shorter movable blades can prevent over-mixing and segregation. By adjusting the length of the movable blades, this device can adapt to the concrete mixing needs of various material properties.

[0020] The rotating rod also drives the spiral blades to rotate, which not only transports the concrete in the discharge pipe upwards and produces a certain mixing effect on the concrete, further mixing the various components in the concrete evenly, eliminating possible local unevenness and improving the overall quality of the concrete, but also transports the concrete downwards after mixing. The spiral blades can generate axial thrust on the concrete in the discharge pipe, allowing the concrete to move smoothly along the discharge pipe, effectively preventing material from accumulating and blocking in the pipe, and ensuring that the concrete can be discharged continuously and stably. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the internal front view of the present invention.

[0023] Figure 3This is a top view schematic diagram of the stirring structure of this utility model.

[0024] Figure 4 This is a top view of the connecting plate structure of this utility model.

[0025] Figure 5 This is a top view of the internal structure of the throwing rod and fixed cylinder of this utility model.

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Housing; 2. Dust cover; 3. Feed pipe; 4. First bolt; 5. Motor; 6. Connecting plate; 7. First nut; 8. Positioning groove; 9. Movable blade; 10. Mounting plate; 11. Second bolt; 12. Fixed blade; 13. First movable hole; 14. Movable groove; 15. Connecting block; 16. Third bolt; 17. Fixed cylinder; 18. Spiral blade; 19. Valve; 20. Feed pipe; 21. Rotating rod; 22. Third nut; 23. Through hole; 24. Mounting hole; 25. First limit hole; 26. Second limit hole; 27. Fourth bolt; 28. Fourth nut; 29. ​​Fifth nut; 30. Fifth bolt; 31. Second movable hole. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated components, elements, or parts to having a specific orientation, or to be constructed and operated in a specific orientation.

[0031] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0032] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two components, elements, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] like Figure 1-5 As shown, the multi-stage wear-resistant mixing blade structure of the concrete mixer includes a housing 1, a fixed cylinder 17, and a rotating rod 21. Multiple equidistant positioning blocks 15 are fixedly installed on the fixed cylinder 17. Each positioning block 15 has two through holes 23. Multiple fixed blades 12 are arranged inside the housing 1. Each fixed blade 12 has a positioning groove 8, and each fixed blade 12 is inserted into the positioning block 15 through the positioning groove 8. Multiple equidistant movable grooves 14 are arranged on each fixed blade 12. Movable blades 9 are arranged inside each movable groove 14. Each movable blade 9 has multiple equidistant first movable holes 13. Two second movable holes 31 are provided on the side walls of the positioning grooves 8 and the multiple movable grooves 14.

[0035] In this technical solution, multiple fourth bolts 27 are provided on each of the multiple fixed blades 12. The multiple fourth bolts 27 pass through the first movable hole 13 and the two second movable holes 31, and are threadedly connected to the movable blade 9 and the fixed blade 12.

[0036] In this technical solution, each of the multiple fixed blades 12 is provided with two fifth bolts 30. Each fifth bolt 30 passes through the fixed blade 12 and the connecting block 15 through the through hole 23 and the two second movable holes 31, and is threaded with a fifth nut 29.

[0037] In this technical solution, a fixed cylinder 17 is sleeved on the rotating rod 21, and two second limiting holes 26 are opened on the rotating rod 21, while four first limiting holes 25 are opened on the fixed cylinder 17.

[0038] In this technical solution, the fixed cylinder 17 is provided with two third bolts 16, both of which pass through the second limiting hole 26 and the two first limiting holes 25, and are threadedly connected to a third nut 22.

[0039] In this technical solution, a motor 5 is fixedly installed on the housing 1, and a connecting plate 6 is fixedly installed on one end of the output shaft and the rotating rod 21 of the motor 5. Mounting holes 24 are opened on both connecting plates 6.

[0040] In this technical solution, a plurality of first bolts 4 are provided between the two connecting plates 6. The plurality of first bolts 4 pass through the mounting holes 24 on the two mounting plates 10 and are threadedly connected to the first nuts 7.

[0041] In this technical solution, the housing 1 is provided with a mounting plate 10, and the mounting plate 10 is provided with a plurality of second bolts 11. The mounting plate 10 is fixed to the housing 1 by the plurality of second bolts 11.

[0042] In this technical solution, the mounting plate 10 is provided with a feed port, and the mounting plate 10 is connected to the feed port via a feed pipe 3, and a dust cover 2 is threaded onto the feed pipe 3.

[0043] In this technical solution, the bottom end of the box 1 is connected to a feeding pipe 20, a valve 19 is provided on the feeding pipe 20, one end of the rotating rod 21 extends into the interior of the feeding pipe 20, and a spiral blade 18 is provided on the rotating rod 21 at the position of the feeding pipe 20.

[0044] In use, all electrical components mentioned in this application are connected to an external power supply and control switch. A fixed quantity of fixed blades 12 are fixedly installed on the fixed cylinder 17 by means of the fifth bolt 30 and the fifth nut 29, so that the multiple fixed blades 12 are distributed in a regular and symmetrical manner on the fixed cylinder 17. This makes the force on each component of the concrete more uniform during the mixing process, avoiding local over-mixing or under-mixing, thereby significantly improving the uniformity and quality of the concrete. At the same time, the position of the fixed blades 12 can be flexibly adjusted according to the type of concrete, the size of the aggregate and the mixing requirements to adapt to different mixing needs and enhance the mixing efficiency.

[0045] The fixed blade 12 provides initial agitation and guidance for the concrete material, while the adjustable movable blade 9 further increases the complexity and versatility of the mixing process. The movable blade 9 can be adjusted in length and position according to actual needs, thereby changing the flow trajectory and mixing mode of the concrete within the housing 1. This allows materials of different components to fully contact, collide, and mix, greatly improving the uniformity of the concrete and ensuring stable concrete quality. For concrete containing large-diameter aggregates, the longer movable blade 9 can better agitate and disperse the large aggregates, ensuring thorough mixing with other materials. For some self-compacting concretes with good flowability, the shorter movable blade 9 can prevent segregation caused by over-mixing. By adjusting the length of the movable blade 9, this device can adapt to the mixing needs of concrete with various material characteristics. The movable blade 9 and the fixed blade 12 are connected by a fifth bolt 30 and a fifth nut 29, which is simple in structure and easy to disassemble and install. When the movable blade 9 is worn or damaged, the operator can easily disassemble it for repair or replacement, reducing the difficulty and workload of maintenance and repair, and also reducing equipment downtime.

[0046] When the motor 5 or the rotating rod 21 malfunctions and needs to be repaired or replaced, simply loosen the first bolt 4 and the first nut 7 to easily separate the motor 5 from the rotating rod 21. This avoids the high cost of repair time and manpower input caused by difficult disassembly, while also reducing equipment downtime and improving production efficiency.

[0047] When the motor 5 drives the rotating rod to rotate, the fixed blade 12 drives multiple movable blades 9 to mix the concrete. At the same time, the rotating rod 21 also drives the spiral blade 18 to rotate. This not only conveys the concrete in the discharge pipe 20 upwards and produces a certain mixing effect on the concrete, making the various components in the concrete more evenly mixed, eliminating possible local unevenness, and improving the overall quality of the concrete, but also conveys the concrete downwards when the mixing is completed. The spiral blade 18 can generate axial thrust on the concrete in the discharge pipe 20, making the concrete move smoothly along the discharge pipe 20, effectively preventing the material from accumulating and blocking in the pipe, and ensuring that the concrete can be discharged continuously and stably.

[0048] The advantages of this application are:

[0049] 1. A fixed number of fixed blades 12 are fixedly installed on the fixed cylinder 17 by means of the fifth bolt 30 and the fifth nut 29, so that the multiple fixed blades 12 are distributed in a regular and symmetrical manner on the fixed cylinder 17, so that the concrete components are subjected to more uniform stress during the mixing process, avoiding local over-mixing or under-mixing, thereby significantly improving the uniformity and quality of concrete. At the same time, the position of the fixed blades 12 can be flexibly adjusted according to the type of concrete, aggregate size and mixing requirements to adapt to different mixing needs and enhance mixing efficiency.

[0050] 2. The length and position of the movable blades 9 can be adjusted according to actual needs, thereby changing the flow trajectory and mixing mode of concrete within the box 1. This allows materials of different components to fully contact, collide, and mix, greatly improving the uniformity of the concrete and ensuring stable quality. For concrete containing large-diameter aggregates, the longer movable blades 9 can better agitate and disperse the large aggregates, ensuring thorough mixing with other materials. Conversely, for some self-compacting concretes with good flowability, the shorter movable blades 9 can prevent over-mixing and segregation. By adjusting the length of the movable blades 9, this device can adapt to the concrete mixing needs of various material properties.

[0051] 3. The rotating rod 21 also drives the spiral blades 18 to rotate, which not only conveys the concrete in the discharge pipe 20 upwards and produces a certain mixing effect on the concrete, so that the various components in the concrete are further mixed evenly, eliminating possible local unevenness and improving the overall quality of the concrete, but also conveys the concrete downwards when the mixing is completed. The spiral blades 18 can generate axial thrust on the concrete in the discharge pipe 20, so that the concrete moves smoothly along the discharge pipe 20, effectively preventing the material from accumulating and blocking in the pipe, and ensuring that the concrete can be discharged continuously and stably.

[0052] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A multi-stage wear-resistant mixing blade structure for a concrete mixer, comprising a housing (1), a fixed cylinder (17), and a rotating rod (21), characterized in that: Multiple equidistant positioning blocks (15) are fixedly installed on the fixed cylinder (17). Each of the multiple positioning blocks (15) has two through holes (23). Multiple fixed blades (12) are provided inside the box body (1). Each of the multiple fixed blades (12) has a positioning groove (8). Each of the multiple fixed blades (12) is inserted into the positioning block (15) through the positioning groove (8). Each of the multiple fixed blades (12) has multiple equidistant movable grooves (14). Each of the multiple movable grooves (14) has movable blades (9) inside. Each of the multiple movable blades (9) has multiple equidistant first movable holes (13). Each of the positioning grooves (8) and the multiple movable grooves (14) has two second movable holes (31) on its sidewall.

2. The multi-stage wear-resistant mixing blade structure for a concrete mixer as described in claim 1, characterized in that: Multiple fourth bolts (27) are provided on each of the multiple fixed blades (12). The multiple fourth bolts (27) pass through the movable blade (9) and the fixed blade (12) through the first movable hole (13) and the two second movable holes (31), and are threaded with a fourth nut (28).

3. The multi-stage wear-resistant mixing blade structure for a concrete mixer as described in claim 1, characterized in that: Each of the fixed blades (12) is provided with two fifth bolts (30). The fifth bolts (30) pass through the fixed blades (12) and the positioning block (15) through the through hole (23) and the two second movable holes (31), and are threaded with a fifth nut (29).

4. The multi-stage wear-resistant mixing blade structure for a concrete mixer as described in claim 1, characterized in that: A fixed cylinder (17) is sleeved on the rotating rod (21). Two second limiting holes (26) are opened on the rotating rod (21), and four first limiting holes (25) are opened on the fixed cylinder (17).

5. The multi-stage wear-resistant mixing blade structure for a concrete mixer as described in claim 4, characterized in that: The fixed cylinder (17) is provided with two third bolts (16), both of which pass through the second limiting hole (26) and the two first limiting holes (25) and are threadedly connected to a third nut (22).

6. The multi-stage wear-resistant mixing blade structure for a concrete mixer as described in claim 1, characterized in that: A motor (5) is fixedly installed on the housing (1). A connecting plate (6) is fixedly installed on one end of the output shaft and the rotating rod (21) of the motor (5). Mounting holes (24) are opened on both connecting plates (6).

7. The multi-stage wear-resistant mixing blade structure for a concrete mixer as described in claim 6, characterized in that: A plurality of first bolts (4) are provided between the two connecting plates (6), and the plurality of first bolts (4) pass through the mounting holes (24) on the two mounting plates (10) and are threaded with first nuts (7).

8. The multi-stage wear-resistant mixing blade structure for a concrete mixer as described in claim 1, characterized in that: The housing (1) is provided with an installation plate (10), and the installation plate (10) is provided with a plurality of second bolts (11). The installation plate (10) is fixed to the housing (1) by the plurality of second bolts (11).

9. The multi-stage wear-resistant mixing blade structure for a concrete mixer as described in claim 8, characterized in that: The mounting plate (10) is provided with a feed inlet, and the mounting plate (10) is connected to the feed inlet via a feed pipe (3), and a dust cover (2) is threaded onto the feed pipe (3).

10. The multi-stage wear-resistant mixing blade structure of the concrete mixer as described in claim 1, characterized in that: The bottom end of the box (1) is connected to the feed pipe (20), and the feed pipe (20) is equipped with a valve (19). One end of the rotating rod (21) extends into the interior of the feed pipe (20), and the rotating rod (21) has a spiral blade (18) at the position of the feed pipe (20).

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