Concrete mixer with replaceable parts

Abstract

The concrete mixer comprises a mixing hopper and a mixing rod fixedly connected with mixing blades, the upper side of the mixing hopper is provided with a feeding port, and the concrete mixer is characterized in that the mixing rod is of a hollow structure with an opening in the bottom, a vertical shaft is fixedly arranged at the bottom of the mixing hopper in the direction of the vertical shaft towards the feeding port, and the vertical shaft is connected with the mixing blade. The vertical shaft is of an inverted T-shaped structure and comprises a transmission plate and a vertical rod, and the transmission plate is connected with a driving motor arranged on the outer side of the stirring hopper; the stirring rod is arranged on the vertical shaft in a sleeving manner and is fixed through a connecting structure. According to the concrete mixer, the integrated fixed design of the mixing rod and the mixing hopper is changed into a detachable and replaceable structure which is fixed by using a connecting structure, so that the compatibility of the concrete mixer to various raw materials and the practicability and durability of the concrete mixer are improved, and the convenience of maintenance and overhaul of the concrete mixer is also improved; and the maintenance time and cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixers, in particular to a concrete mixer with replaceable parts. Background Art

[0002] A concrete mixer is a device used to mix various raw materials (such as cement, aggregate, sand, etc.) to prepare concrete. Its main functions include: mixing raw materials, improving concrete quality, saving manpower and costs, etc. It can ensure the quality of concrete, improve production efficiency, and greatly facilitate the preparation and construction of concrete.

[0003] According to the different characteristics of the materials, the raw materials that need to be mixed into concrete mixtures can be roughly divided into plastic materials and hard materials. Plastic materials generally refer to cement, water and additives, etc., which have high fluidity and plasticity. During the mixing process, plastic materials will flow and disperse evenly in the concrete more easily; hard materials generally refer to aggregates (such as sand and gravel), etc., which have larger particle sizes and lower fluidity. During the mixing process, hard materials require greater stirring force to disperse and evenly match them.

[0004] In the prior art, concrete mixers are generally of integrated design with a relatively fixed structure, and cannot be treated differently according to the characteristics of the raw materials. Therefore, there is an urgent need for a concrete mixer that can replace corresponding parts according to the different characteristics of the raw materials to improve its practicality and production efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a concrete mixer with replaceable parts to solve the technical problems in the prior art that the concrete mixer has a single structure and cannot adopt different mixing strategies according to the different characteristics of raw materials, so as to improve the practicality and production efficiency of the concrete mixer.

[0006] The technical solution adopted by the utility model is: a concrete mixer with replaceable parts, comprising a mixing bucket and a mixing rod fixedly connected with mixing blades, a feeding port is arranged on the upper side of the mixing bucket, and is characterized in that the mixing rod is a hollow structure with an opening at the bottom, a vertical shaft is fixedly arranged at the bottom of the mixing bucket along a vertical direction toward the feeding port, the vertical shaft is an inverted "T"-shaped structure, comprising a transmission plate and a vertical rod, the transmission plate is connected to a driving motor arranged outside the mixing bucket; the mixing rod is sleeved on the vertical shaft and fixed by a connecting structure.

[0007] Furthermore, the connection structure is a screw connection structure, including at least one section of external thread arranged on the outer surface of the vertical rod, and at least one section of internal thread arranged inside the hollow structure of the stirring rod and cooperating with the vertical rod, and a flange is provided at the opening at the bottom of the stirring rod, and the flange abuts against the transmission plate.

[0008] Furthermore, the connecting structure is a snap-on structure, including at least one clip strip or clip groove arranged on the vertical pole, and at least one clip groove or clip strip arranged in the hollow structure of the stirring rod and cooperating with the vertical pole, and a flange is provided at the opening at the bottom of the stirring rod, and the flange abuts against the transmission plate.

[0009] Furthermore, the flange and the transmission plate are provided with threaded holes corresponding to each other.

[0010] Furthermore, the connection structure is a riveted structure, the opening at the bottom of the stirring rod is provided with a flange, and the flange and the transmission plate are both provided with riveting holes that cooperate with rivets.

[0011] Furthermore, the flange is provided with a key protruding from the flange plane, and the transmission plate is provided with a key slot cooperating with the key; the flange is provided with a through hole, and the key is movably connected in the through hole up and down.

[0012] Furthermore, there is a clearance fit between the stirring rod and the vertical rod.

[0013] The concrete mixer with replaceable parts of the utility model achieves the following beneficial effects by changing the integrated fixed design of the stirring rod and the stirring bucket to a detachable and replaceable structure fixed by a connecting structure:

[0014] 1. When mixing materials, the concrete mixer can choose a mixing rod with mixing blades of different specifications according to the different characteristics of the materials (such as plastic materials, hard materials, etc.) to achieve the best mixing effect and improve work efficiency.

[0015] 2. The replaceable parts improve the compatibility of the concrete mixer with various raw materials and its practicality and durability. When the parts are worn and damaged after long-term use, the parts can be replaced directly without replacing the whole machine, which is more economical and practical.

[0016] 3. As the main component of the concrete mixer, the mixing rod is set as a replaceable part, which greatly improves the convenience of maintenance and overhaul of the concrete mixer, reduces maintenance time and cost, and also improves the accuracy and safety of maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The utility model is a cross-sectional view of a mixing bucket of a concrete mixer with replaceable parts and a vertical shaft installed thereon.

[0019] Figure 2 The utility model is a structural schematic diagram of a vertical shaft of a concrete mixer with replaceable parts.

[0020] Figure 3 The utility model is a structural schematic diagram of a mixing rod of a concrete mixer with replaceable parts.

[0021] The attached diagram shows:

[0022] 1. Mixing bucket; 2. Mixing rod; 21. Flanging; 211. Key; 212. Keyway; 3. Vertical shaft; 31. Transmission plate; 32. Vertical rod; 4. External thread; 5. Threaded hole. DETAILED DESCRIPTION

[0023] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0024] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0025] Embodiment 1

[0026] like Figure 1-3As shown, the concrete mixer with replaceable parts in this case includes a mixing bucket 1 and a mixing rod 2 fixed with mixing blades, a feed port is provided on the upper side of the mixing bucket 1, the mixing rod 2 is a hollow structure with an opening at the bottom, a vertical shaft 3 is fixedly provided at the bottom of the mixing bucket 1 along a vertical direction toward the feed port, the vertical shaft 3 is an inverted "T"-shaped structure, including a transmission plate 31 and a vertical rod 32, the transmission plate 31 is connected to a driving motor arranged on the outer side of the bottom of the mixing bucket 1; the mixing rod 2 is sleeved on the vertical shaft 3 and fixed by a connecting structure.

[0027] In the above, this case sets the originally fixed stirring rod 2 as a detachable and replaceable part. Different stirring rods 2 and stirring strategies can be used according to the different characteristics of the raw materials, so that the production operation of the concrete mixer is more targeted and timely. The stirring rod 2 and the vertical shaft 3 are both set as standard parts. Specifically, the stirring blades on the stirring rod 2 can be designed into different styles according to the different characteristics of the raw materials. For example, for plastic materials, a large number and orientation of stirring blades can be used, but not too sharp, so as to achieve a more complete mixing and more uniform mixing of the plastic raw materials; for hard materials, stirring blades with greater stirring force are selected to achieve a more complete dispersion and uniform mixing; and for different raw materials, such as dry hard, semi-dry hard, plastic and various proportions of concrete, various specifications of stirring rods 2 can be designed, such as the number of stirring blades, whether to add sharp edges, the sharpness of the sharp edges, etc.

[0028] The stirring rod 2 of this case is fixed on the vertical shaft 3 through a screw connection structure, the outer surface of the vertical rod 32 is provided with an external thread 4, and the hollow structure of the stirring rod 2 is provided with an internal thread matched therewith. Specifically, the external thread 4 and the internal thread can be provided with one section, multiple sections or all sections correspondingly to match the required stability of the stirring rod 2. At the same time, a flange 21 is provided at the opening at the bottom of the stirring rod 2, and the flange 21 abuts against the transmission plate 31 to make the connection structure more secure.

[0029] Furthermore, corresponding threaded holes 5 can be set on the flange 21 and the transmission plate 31, and bolts and nuts can be used to make the connection between the two more secure; or a key 211 protruding from the plane of the flange 21 can be set on the flange 21, and a keyway 212 can be set on the transmission plate 31, and the stability of the stirring rod 2 mounted on the vertical shaft 3 can be further enhanced by the key connection in combination with the threaded connection.

[0030] More specifically, the key 211 is movably connected up and down in a through hole opened on the flange 21. During actual installation, the stirring rod 2 is mounted on the vertical rod 32 and screwed down through the thread. When the flange 21 abuts against the transmission plate 31, according to the preset, the key 211 corresponds exactly to the position of the key slot 212. The key 211 is pressed downward to be embedded in the key slot 212.

[0031] In this embodiment, although the stirring rod 2 is configured as a detachable and replaceable part, the connection between the stirring rod 2 and the vertical shaft 3 can be made very stable by means of threaded connection, bolt connection, and key connection. During specific design and installation, any two or three connection methods can be selected according to actual needs.

[0032] Embodiment 2

[0033] The difference between this embodiment and the first embodiment lies in the connection structure between the stirring rod 2 and the vertical shaft 3 .

[0034] The stirring rod 2 of this embodiment is fixed to the vertical shaft 3 by a clamping structure. The outer surface of the vertical rod 32 is symmetrically provided with two clamping grooves along the longitudinal direction. Correspondingly, two clamping strips are symmetrically provided in the hollow structure of the stirring rod 2 along the longitudinal direction. The flange 21 and the transmission plate 31 are provided with corresponding threaded holes 5. The opening at the bottom of the stirring rod 2 is also provided with a flange 21 that can abut against the transmission plate 31, and a key arranged in the through hole of the flange 21 and a keyway 212 on the transmission plate 31.

[0035] During actual installation, the clamping strip in the stirring rod 2 is clamped onto the vertical shaft 3 along the clamping groove on the surface of the vertical rod 32. After clamping, the bolt is screwed into the above-mentioned threaded hole 5 to strengthen the connection between the stirring rod 2 and the vertical shaft 3. At the same time, the key connection between the above-mentioned middle key 211 and the keyway 212 can also be used to make the connection between the stirring rod 2 and the vertical shaft 3 more stable.

[0036] In this embodiment, the stirring rod 2 can be fixed to the vertical shaft 3 by various methods such as snap connection, thread connection, key connection, etc., and the structure is very strong. During specific design and installation, any two or three connection methods can be selected according to actual needs.

[0037] Embodiment 3

[0038] The difference between this embodiment and the above two embodiments lies in the connection structure between the stirring rod 2 and the vertical shaft 3 .

[0039] The stirring rod 2 of this embodiment is fixed to the vertical shaft 3 by a riveting structure, and a flange 21 is provided at the opening at the bottom of the stirring rod 2, and riveting holes cooperating with rivets are provided on the flange 21 and the transmission plate 31; the opening at the bottom of the stirring rod 2 is also provided with a flange 21 that can abut against the transmission plate 31, and a key 211 arranged in the through hole of the flange 21 and a keyway 212 on the transmission plate 31.

[0040] During actual installation, the stirring rod 2 is sleeved onto the vertical shaft 3 and fixed via the riveting holes on the flange 21 and the transmission plate 31 , as well as the key 211 in the through hole of the flange 21 and the keyway 212 on the transmission plate 31 .

[0041] In this embodiment, the stirring rod 2 is fixed to the vertical shaft 3 by riveting and key connection, and the connection structure is very firm. During specific design and installation, one or both of the design schemes can be selected according to actual needs.

[0042] In the description of the present invention, it is necessary to understand that the terms "middle", "length", "up", "down", "front", "back", "vertical", "horizontal", "inside", "outside", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, the first feature "on" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. "Multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The above is only for explaining the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention without creative work should be included in the protection scope of the present invention.

Claims

1. A concrete mixer with replaceable parts, comprising a mixing bucket (1) and a mixing rod (2) connected with a mixing blade, wherein a feed inlet is provided on the upper side of the mixing bucket (1), characterized in that: The stirring rod (2) is a hollow structure with an opening at the bottom. A vertical shaft (3) is fixedly provided at the bottom of the stirring bucket (1) in a direction vertically toward the feed inlet. The vertical shaft (3) is an inverted "T"-shaped structure, comprising a transmission plate (31) and a vertical rod (32). The transmission plate (31) is connected to a driving motor arranged outside the stirring bucket (1). The stirring rod (2) is sleeved on the vertical shaft (3) and fixed by a connecting structure.

2. The concrete mixer with replaceable parts according to claim 1, characterized in that: The connection structure is a screw connection structure, comprising at least one section of external thread (4) arranged on the outer surface of the vertical rod (32), and at least one section of internal thread arranged inside the hollow structure of the stirring rod (2) and matching with the vertical rod (32), and a flange (21) is provided at the opening at the bottom of the stirring rod (2), and the flange (21) abuts against the transmission plate (31).

3. The concrete mixer with replaceable parts according to claim 1, characterized in that: The connection structure is a snap-fit ​​structure, comprising at least one snap-fit ​​strip or snap-fit ​​groove arranged on the vertical rod (32), and at least one snap-fit ​​groove or snap-fit ​​strip arranged in the hollow structure of the stirring rod (2) and cooperating with the vertical rod (32), and a flange (21) is provided at the opening at the bottom of the stirring rod (2), and the flange (21) abuts against the transmission plate (31).

4. A concrete mixer with replaceable parts according to any one of claims 2 or 3, characterized in that: The flange (21) and the transmission plate (31) are provided with threaded holes (5) corresponding to each other.

5. The concrete mixer with replaceable parts according to claim 1, characterized in that: The connection structure is a riveted structure, the opening at the bottom of the stirring rod (2) is provided with a flange (21), and the flange (21) and the transmission plate (31) are both provided with riveting holes that cooperate with rivets.

6. A concrete mixer with replaceable parts according to any one of claims 2, 3 or 5, characterized in that: The flange (21) is provided with a key (211) protruding from the plane of the flange (21), and the transmission plate (31) is provided with a key slot (212) cooperating with the key (211); the flange (21) is provided with a through hole, and the key (211) is movably connected in the through hole up and down.

7. The concrete mixer with replaceable parts according to claim 1, characterized in that: There is a clearance fit between the stirring rod (2) and the vertical rod (32).

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