Commercial concrete stirring device

Abstract

The utility model discloses a commercial concrete stirring device which comprises a stirring machine shell, a power assembly is arranged on one side of the stirring machine shell, a pair of parallel stirring shafts are arranged in the stirring machine shell, and the shaft ends of the stirring shafts are both connected with the power assembly. A plurality of pairs of stirring blades which are arranged in a staggered manner are assembled on the pair of stirring shafts; the utility model relates to the technical field of concrete mixing, in particular to a commercial concrete mixing device, the integrally prefabricated mixing blade is adopted, the limiting block is arranged on the inner ring of the mixing blade, so that the effect of enhancing the overall structural strength of the mixing blade is achieved, the limiting groove is correspondingly formed in the mixing shaft, and the mixing shaft is fixed through matched installation of the limiting block and the limiting groove. The stirring blade limiting and fixing device has the advantages that the stirring blades are limited and mounted, the area of the combination position is increased, the stress characteristic is improved, the structural strength of the connection position of the stirring blades is guaranteed, the limiting and fixing device can be quickly disassembled, and the blades can be conveniently disassembled, assembled and overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing, in particular to a commercial concrete mixing device. Background Technique

[0002] Commercial concrete is a commonly used main material in current building construction. Most commercial concrete is pre-mixed by local processing plants and transported by concrete mixers. The construction party only needs to purchase according to the usage amount and implementation standards. On the one hand, it reduces the equipment requirements of the construction party and the time for prefabricating concrete during construction. On the other hand, the processing standards of commercial concrete are strict and the quality is stable and reliable.

[0003] In the production process of modern commercial concrete, large mixing stations are mostly used for production. The mixing main machine in the mixing station system is mostly a horizontal mixing device driven by a reducer. During the working process of the mixing main machine, the mixing blades are often used to drive the mixing of materials. At present, in order to facilitate disassembly and replacement, the mixing blades mostly adopt an independent blade structure with a multi-bolt connection and sleeve structure, which can be quickly disassembled and replaced according to needs. However, only by connecting the blades with bolts, when the blades contact the mixing materials, a large radial force and centrifugal force will be generated at the bolt connection positions of the blades, which is likely to cause the bolt positions of the blades to be deformed or detached due to stress. In view of this, in-depth research on the above problems has led to the generation of this case. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a commercial concrete mixing device, which solves the problems in the existing background technology.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: a commercial concrete mixing device, including a mixer housing, a power assembly is arranged on one side of the mixer housing, a pair of parallel mixing shafts are arranged in the mixer housing, the shaft ends of the pair of mixing shafts are both connected to the power assembly, and a plurality of pairs of staggered mixing blades are assembled on the pair of mixing shafts;

[0006] A plurality of mixing blades on the same mixing shaft are arranged in a one-way linear array, and the angles of adjacent pairs of mixing blades are different;

[0007] An installation sleeve is arranged at the center of the plurality of mixing blades. The installation sleeve is a plate with an annular structure. A plurality of limiting blocks are arranged on the inner ring of the installation sleeve. The plurality of limiting blocks are plates with a partial fan-shaped structure. A plurality of limiting grooves are arranged in a ring array along the central axis of the mixing shaft;

[0008] The plurality of limiting blocks are assembled in the plurality of limiting grooves. The shapes of the plurality of limiting grooves match the shapes of the plurality of limiting blocks. Socket grooves and socket inserts are symmetrically arranged at both ends of the plurality of limiting blocks;

[0009] One end of the stirring shaft is provided with a limit fixator which is extruded outside the outer ends of the mounting sleeves of several said stirring blades.

[0010] Preferably, a pair of cross shaft keys are respectively arranged at the end parts of a pair of said stirring shafts.

[0011] Preferably, several said stirring blades on the same stirring shaft are butt-jointed end to end and limited by a socket groove and a socket insert block.

[0012] Preferably, the power assembly is composed of a driving motor and a speed reducer connecting the driving motor and the stirring shaft.

[0013] Preferably, the limit fixator includes a threaded groove. A plurality of threaded grooves are arranged in an annular array at the end of the stirring shaft. A plugging seat is sleeved at the end of the stirring shaft. The plugging seat and the plurality of threaded grooves are fixed by a plurality of bolts. A positioning sleeve extends from one side of the plugging seat. The positioning sleeve is pushed against one side of the central mounting sleeve of the stirring blade.

[0014] Preferably, a rotary bearing is arranged at a position on the mixer housing matching the plugging seat.

[0015] Beneficial effects

[0016] The utility model provides a commercial concrete mixing device, which has the following beneficial effects: The commercial concrete mixing device adopts integrally prefabricated stirring blades. By arranging limit blocks in the inner ring of the stirring blades, the overall structural strength of the stirring blades is enhanced. And corresponding limit grooves are arranged on the stirring shaft. Through the matching installation of the limit blocks and the limit grooves, the limit installation of the stirring blades is achieved, the area of the joint position is increased, the stress characteristics are improved, the structural strength of the connection position of the stirring blades is ensured, and furthermore, the limit fixator can be quickly disassembled, which is convenient for disassembling, assembling and overhauling the blades. Description of the drawings

[0017] Figure 1 It is the front view structural schematic diagram of a commercial concrete mixing device described in the utility model.

[0018] Figure 2 It is the partial three-dimensional explosion structural schematic diagram of a commercial concrete mixing device described in the utility model.

[0019] Figure 3 It is the partial three-dimensional structural schematic diagram of a commercial concrete mixing device described in the utility model.

[0020] In the figure: 1, mixer housing; 2, power assembly; 3, mixing shaft; 4, mixing blades; 5, limit fixator; 41, mounting sleeve; 42, limit block; 43, socket groove; 44, socket insert block; 45, limit groove; 51, threaded groove; 52, plugging seat; 53, bolt; 54, positioning sleeve. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-3 , the present invention provides an implementation solution: In the modern commercial concrete production process, mixing various ingredients is a common production process. Large mixing equipment is mostly used for the mixing of commercial concrete. During mixing, horizontal relative movement of mixing blades is used to mix various materials. At present, the blades of the mixing blades of the mixer are mostly fixed on the mixing shaft 3 through connecting parts such as bolts 53. Therefore, when the mixing shaft 3 pushes the materials during use, the impact force on the root of the connection position between the mixing shaft 3 and the blades is relatively large, and the problem of loosening of the connection position is likely to occur. At present, the main method is to use multiple connecting parts for fixation, but this structure will reduce the material used for the mixing blades 4, resulting in insufficient structural strength of the mixing blades 4 and easy damage during long-term use.

[0023] In view of the above problems, the present application discloses a commercial concrete mixing device. The mixing device takes the mixer housing 1 as the main structure. The top of the mixer housing 1 is sealed by an end cover, and several feeding ports are arranged on the end cover to connect aggregates, auxiliary materials, and water inlets. After the aggregates, auxiliary materials, and water are added into the mixer housing 1 in proportion, power is provided by a power assembly 2 arranged on one side of the mixer housing 1 to drive a pair of mixing shafts 3 to rotate relatively, so as to mix the above materials evenly.

[0024] Specifically, a pair of parallel mixing shafts 3 are arranged in the mixer housing 1. The pair of mixing shafts 3 are symmetrically arranged. The shaft ends of the pair of mixing shafts 3 are both connected to the power assembly 2. A plurality of pairs of staggered mixing blades 4 are assembled on the pair of mixing shafts 3. By driving the pair of mixing shafts 3 to rotate relatively by the power assembly 2, the pair of mixing shafts 3 drive a plurality of pairs of mixing blades 4 to rotate relatively, so as to fully mix the aggregates, auxiliary materials, and water;

[0025] Furthermore, a number of stirring blades 4 on the same stirring shaft 3 are arranged in a one-way linear array, and the angles of adjacent pairs of stirring blades 4 are different. By setting shaft end seats of different lengths at one shaft end of a pair of stirring shafts 3, the a number of stirring blades 4 on the two stirring shafts 3 can be completely staggered;

[0026] According to the attached drawings of the specification Figures 1-3 As can be seen, an installation sleeve 41 is provided at the center of the above-mentioned a number of stirring blades 4. The installation sleeve 41 is a plate with an annular structure. A number of limiting blocks 42 are arranged on the inner ring of the installation sleeve 41. The a number of limiting blocks 42 are plates with a partial fan-shaped structure. A number of limiting grooves 45 are arranged in a ring array on the central axis of the stirring shaft 3;

[0027] In the specific implementation process, the a number of limiting blocks 42 are assembled in the a number of limiting grooves 45. The shapes of the a number of limiting grooves 45 and the a number of limiting blocks 42 match. By arranging a number of limiting blocks 42 on the inner ring of the installation sleeve 41 to match the a number of limiting grooves 45 on the stirring shaft 3, the limiting effect of the installation sleeve 41 on the stirring blade 4 in the radial and circumferential directions is achieved. Furthermore, the a number of limiting blocks 42 and the installation sleeve 41 are integrally formed, which can increase the structural strength of the root of the installation sleeve 41. During installation, it can be inserted from one end of the stirring shaft 3, which is convenient for installation and does not require fastening with threaded parts. The stirring blade 4 and the installation sleeve 41 can be manufactured by welding or integrally formed to ensure the structural strength of the stirring blade 4 as much as possible;

[0028] According to the attached drawings of the specification Figures 1-3 As can be seen, furthermore, socket grooves 43 and socket inserts 44 are symmetrically arranged at both ends of the a number of limiting blocks 42. Through the matching of the socket grooves 43 and the socket inserts 44, the limiting insertion of the installation sleeve 41 between adjacent stirring blades 4 is realized, improving the installation integrity of the stirring blades 4 and ensuring that the stirring blades 4 will not axially move during use, playing an axial limiting role, and ensuring the sealing performance of the installation sleeve 41 through the socket structure to prevent a large amount of dust or water from entering the position of the limiting grooves 45;

[0029] Furthermore, a limiting fixture 5 is provided at one end of the stirring shaft 3 and presses against the outer end of the installation sleeve 41 of the a number of stirring blades 4. Through the limiting fixture 5, the outer ends of the a number of stirring blades 4 can be pressed, playing an axial locking role for the a number of stirring blades 4.

[0030] As a preferred solution, furthermore, a pair of cross shaft keys are respectively arranged at the ends of a pair of stirring shafts 3 for power transmission with the power assembly 2.

[0031] As a preferred solution, furthermore, the a number of stirring blades 4 on the same stirring shaft 3 are butt-jointed end to end and limited by the socket grooves 43 and the socket inserts 44.

[0032] As a preferred solution, furthermore, the power assembly 2 is composed of a driving motor and a speed reducer connecting the driving motor and the stirring shaft 3. The driving motor is used as the power to drive the speed reducer to rotate, so that the speed reducer drives the stirring shaft 3 to move.

[0033] As a preferred solution, furthermore, the limit fixator 5 includes a threaded groove 51. A plurality of threaded grooves 51 are arranged in an annular array at the end of the stirring shaft 3. A plugging seat 52 is sleeved on the end of the stirring shaft 3. The plugging seat 52 and the plurality of threaded grooves 51 are fixed by a plurality of bolts 53. A positioning sleeve 54 extends from one side of the plugging seat 52. The positioning sleeve 54 is pushed against one side of the central mounting sleeve 41 of the stirring blade 4.

[0034] In the specific implementation process, a guiding groove is arranged at the center of the end of the stirring shaft 3. A guiding rod is arranged at the center of the plugging seat 52 and inserted into the guiding groove. Through the mutual limitation of the guiding rod and the guiding groove, the guiding function is achieved to seal the plugging seat 52 at one end of the stirring shaft 3. Then, a plurality of bolts 53 penetrate through the plugging seat 52 and are connected in the plurality of threaded grooves 51, playing an axial and radial limiting role for the plugging seat 52. Furthermore, through the positioning sleeve 54 contacting the one of the plurality of stirring blades 4 closest to the end of the stirring shaft 3, an axial end limiting role for the plurality of stirring blades 4 is achieved.

[0035] As a preferred solution, furthermore, a rotary bearing is arranged at the position on the mixer housing 1 matching the plugging seat 52 to reduce the friction received by the plugging seat 52.

[0036] In summary, generally speaking, for this commercial concrete mixing device, the integrally prefabricated stirring blade 4 is adopted. By arranging a limiting block 42 inside the ring of the stirring blade 4, the overall structural strength of the stirring blade 4 is enhanced. And a limiting groove 45 is correspondingly arranged on the stirring shaft 3. Through the matching installation of the limiting block 42 and the limiting groove 45, the limiting installation of the stirring blade 4 is achieved, increasing the area of the joint position, improving the force-bearing characteristics, ensuring the structural strength of the connection position of the stirring blade 4. Furthermore, the limit fixator 5 can be quickly disassembled, facilitating the disassembly and assembly and maintenance of the blade.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A commercial concrete mixing device, comprising a mixer housing (1), a power assembly (2) being arranged on one side of the mixer housing (1), a pair of parallel mixing shafts (3) being arranged inside the mixer housing (1), the shaft ends of the pair of mixing shafts (3) being connected to the power assembly (2), characterized in that: A pair of the stirring shafts (3) are equipped with a plurality of pairs of stirring blades (4) arranged in a staggered manner; A plurality of stirring blades (4) on the same stirring shaft (3) are arranged in a unidirectional linear array, and a pair of adjacent stirring blades (4) have different angles; A mounting sleeve (41) is arranged at the center of a plurality of the stirring blades (4), the mounting sleeve (41) is a plate with an annular structure, a plurality of limit blocks (42) are arranged on the inner ring of the mounting sleeve (41), and a plurality of limit blocks (42) are plates with a partial fan-shaped structure, and a plurality of limit grooves (45) are arranged on the central axis of the stirring shaft (3) in a ring array; The plurality of limit blocks (42) are assembled in the plurality of limit grooves (45), the plurality of limit grooves (45) match the shapes of the plurality of limit blocks (42), and the two ends of the plurality of limit blocks (42) are symmetrically provided with socket grooves (43) and socket insert blocks (44); A limit fixer (5) is provided at one end of the stirring shaft (3) and is pressed against the outer ends of the mounting sleeves (41) of the plurality of stirring blades (4).

2. A commercial concrete mixing device according to claim 1, characterized in that: A pair of cross shaft keys are respectively provided at the ends of the pair of stirring shafts (3).

3. A commercial concrete mixing device according to claim 2, characterized in that: The plurality of stirring blades (4) on the same stirring shaft (3) are butted end to end and are limited in position by a socket groove (43) and a socket insert block (44).

4. A commercial concrete mixing device according to claim 3, characterized in that: The power assembly (2) is composed of a drive motor and a reducer connecting the drive motor and the stirring shaft (3).

5. A commercial concrete mixing device according to claim 4, characterized in that: The limit fixer (5) comprises a thread groove (51), the end of the stirring shaft (3) is provided with a plurality of thread grooves (51) in a ring array, the end of the stirring shaft (3) is sleeved with a blocking seat (52), the blocking seat (52) and the plurality of thread grooves (51) are fixed by a plurality of bolts (53), a positioning sleeve (54) extends from one side of the blocking seat (52), and the positioning sleeve (54) is pushed onto one side of a central mounting sleeve (41) of the stirring blade (4).

6. A commercial concrete mixing device according to claim 5, characterized in that: A rotary bearing is provided on the mixer housing (1) at a position matching the sealing seat (52).

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