Dry-mixed mortar mixer

Abstract

The utility model provides a dry-mixed mortar mixer, which belongs to the technical field of material mixing and comprises a main mixing mechanism, the main mixing mechanism comprises a hollow main shaft rotatably assembled in a mixing box, the hollow main shaft is detachably connected with a plurality of hollow mixing arms, and the hollow main shaft is provided with threading holes corresponding to the hollow mixing arms; by arranging the main stirring mechanism and the auxiliary stirring mechanism, the stirring blades can actively rotate, so that the stirring blades can rotate for multiple circles when the main stirring mechanism rotates for one circle, and mixed materials can be stirred and mixed for multiple times. The stirring device is simple in structure and convenient to operate, so that the mixing and stirring times required by uniform mixing of materials are realized in a shorter time, the mixing and stirring efficiency is improved, the stirring time is greatly shortened, and the stirring efficiency of the stirrer is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of material mixing technology, specifically to a dry mortar mixer. Background Technology

[0002] As a multi-material mixing device, the mixer is applicable to various industries and has a wide range of applications and types.

[0003] Mixers are also used in the dry mortar industry for construction. As the core equipment of the dry mortar production line, they have a decisive impact on the output and quality of dry mortar. Therefore, the quality of a dry mortar mixer directly determines the quality of the dry mortar produced by a dry mortar production line, as well as the competitiveness of the dry mortar products in the market. It is directly related to the profitability of users and is of great importance to dry mortar production enterprises.

[0004] Currently, two main types of mixers are used in dry mortar production lines: twin-shaft and single-shaft. Generally speaking, twin-shaft mixers are mainly used in the production of ordinary dry mortar, while single-shaft mixers are mainly used in the production of specialty mortars. The main reason for using twin-shaft mixers in the production of ordinary dry mortars is their high output, and the requirements for the uniformity of various raw materials are not as high as for specialty mortars, making them suitable for the large-scale production requirements of ordinary dry mortars. On the other hand, the main reason for using single-shaft mixers in the production of specialty mortars is their high mixing speed, which allows for rapid and uniform mixing, making them suitable for the high requirements and characteristics of specialty mortars in terms of the uniformity of various raw materials.

[0005] Both twin-shaft and single-shaft mixers share a common drawback: long mixing times, low mixing efficiency, and limited output. The maximum output of a twin-shaft mixer is generally around 60 tons per hour. A typical mortar production line equipped with one twin-shaft mixer would only produce about 300,000 tons per year. To increase output, another production line would typically need to be added, resulting in a significant investment. Similarly, the maximum output of a single-shaft mixer is generally around 20 tons per hour. A specialty mortar production line equipped with one single-shaft mixer would only produce about 100,000 tons per year. Increasing output again usually requires adding another production line, leading to an even greater investment.

[0006] From a practical application perspective, the main reason limiting the output of both ordinary and special mortar production lines lies in the difficulty of further increasing the output of twin-shaft and single-shaft mixers. The fundamental reason for this difficulty in increasing output is that a certain number of mixing cycles are required for any material to be mixed evenly; without reaching this number of cycles, the required uniformity cannot be achieved. Furthermore, the number of mixing cycles is closely related to the mixer's spindle speed. Due to the mixing principles of these two types of mixers, the spindle speed cannot be made very high; otherwise, excessively high mixing speeds would cause the mixed materials to be thrown up synchronously with the blades, hindering relative movement between materials and failing to achieve the desired mixing effect. Therefore, increasing the number of mixing cycles per unit time without changing the mixer's spindle speed is the fundamental factor in improving mixer output. Currently, there is no good solution, making this a significant industry-wide problem. Utility Model Content

[0007] This utility model provides a dry mortar mixer to solve the technical problems in the prior art.

[0008] To solve the above problems, the dry mortar mixer provided by this utility model adopts the following technical solution: it includes a main mixing mechanism, which includes a hollow main shaft rotatably assembled in a mixing box, a plurality of hollow mixing arms detachably connected to the hollow main shaft, and a wire through hole corresponding to the hollow mixing arms on the hollow main shaft; one end of the hollow main shaft is connected to a power structure for driving the hollow main shaft to rotate, and the other end of the hollow main shaft is connected to a sliding connector for conducting electricity;

[0009] A secondary stirring mechanism is mounted on a hollow stirring arm. The secondary stirring mechanism includes stirring blades for stirring materials and a drive structure for driving the stirring blades to rotate. The power line of the drive structure passes through the hollow stirring arm and the wire hole in sequence, and enters the hollow main shaft to connect with the sliding connector.

[0010] As a further improvement, the hollow main shaft is connected to the mixing tank via a main shaft bearing.

[0011] As a further improvement, the hollow stirring arm includes a connecting sleeve for connecting the hollow main shaft and an arm body, the arm body being a hollow structure, and the connecting sleeve being fixedly connected to the arm body.

[0012] As a further improvement, the hollow spindle has a rectangular cross-section, and the connecting sleeve is provided with a rectangular mounting hole for fitting the hollow spindle to prevent the arm from rotating. The connecting sleeve is fitted onto the hollow spindle and connected to the hollow spindle by bolts.

[0013] As a further improvement, the end of the arm body away from the connecting sleeve is bolted to a cover plate for easy maintenance.

[0014] As a further improvement, the drive structure is a hub motor, on which stirring blades are evenly distributed.

[0015] As a further improvement, a protective housing is connected to the outside of the hub motor to protect the hub motor and prevent dust from entering the hub motor.

[0016] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0017] 1. This utility model, by setting up a main stirring mechanism and a secondary stirring mechanism, enables the stirring blades to rotate actively. This ensures that for every rotation of the main stirring mechanism, the stirring blades rotate multiple times, resulting in multiple mixing cycles of the mixture. This achieves the required number of mixing cycles for uniform material mixing in a shorter time, thereby improving mixing efficiency and significantly reducing mixing time, thus greatly enhancing the mixing efficiency of the mixer.

[0018] 2. The failure rate of this invention is relatively lower. Because a secondary stirring mechanism is added to the hollow stirring arm, the failure rate is relatively higher than that of traditional mixers. Therefore, this invention reduces the failure rate through multiple measures.

[0019] First, both the hollow main shaft and the hollow stirring arm are hollow structures, which allows the power cord of the auxiliary stirring mechanism to be placed inside the hollow main shaft and the hollow stirring arm, thus preventing the power cord from being worn by the material.

[0020] Secondly, a protective shell is installed on the outside of the hub motor to prevent the hub motor from being worn. A sealing ring is installed at the gap between the protective shell and the hub motor to provide dust protection and reduce the possibility of dust entering the hub motor.

[0021] Finally, the hollow stirring arm has a removable cover for wiring inspection. Furthermore, both the auxiliary stirring mechanism and the hollow stirring arm are detachable, allowing for easy and timely replacement of the corresponding parts in case of malfunction.

[0022] 3. Compared with increasing the number of mixers or production lines, the cost of this utility model is relatively lower, reducing the investment in expanding production and making it more conducive for small and medium-sized enterprises to expand their scale. Attached Figure Description

[0023] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0024] Figure 1 This is a schematic diagram of the main structure of the dry mortar mixer of this utility model;

[0025] Figure 2 This is a right-side structural schematic diagram of the dry mortar mixer of this utility model;

[0026] Figure 3 This is a schematic diagram of the main structure of the auxiliary mixing mechanism of the dry mortar mixer of this utility model;

[0027] Figure 4 This is a right-side structural schematic diagram of the auxiliary mixing mechanism of the dry mortar mixer of this utility model;

[0028] Figure 5 This is a schematic diagram of the main structure of the hollow mixing arm of the dry mortar mixer of this utility model.

[0029] Figure 6 This is a right-side structural schematic diagram of the hollow mixing arm of the dry mortar mixer of this utility model;

[0030] Figure 7 This is a top view of the hollow mixing arm of the dry mortar mixer of this utility model.

[0031] Figure 8 This is a schematic diagram of the main structure of the hollow main shaft of the dry mortar mixer of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Sliding connector; 200. Main stirring mechanism; 210. Hollow main shaft; 211. Wire hole; 220. Main shaft bearing; 230. Hollow stirring arm; 231. Connecting sleeve; 232. Arm body; 233. Cavity; 234. Mounting hole; 235. Cover plate; 300. Secondary stirring mechanism; 310. Hub motor; 320. Power cord; 330. Stirring blades; 340. Motor shaft; 350. Protective housing. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0035] For any material to be mixed evenly, a certain number of mixing cycles are required; otherwise, the required uniformity cannot be achieved. Furthermore, the number of mixing cycles is closely related to the spindle speed of the mixer. Due to the mixing principles of these two types of mixers, the spindle speed cannot be made very high; otherwise, if the mixing speed is too high, the mixed materials will be thrown up synchronously with the blades, making relative movement between materials difficult and failing to achieve the desired mixing effect. This makes it difficult to increase the output of existing dry mortar mixing equipment.

[0036] To address the aforementioned problems, this invention improves mixing efficiency by incorporating a secondary mixing mechanism. In existing systems, the mixing blades are directly connected to the main shaft; for every rotation of the main shaft, the mixing blades can only passively rotate once, agitating the material only once.

[0037] This invention utilizes a secondary stirring mechanism to enable the stirring blades to rotate actively. This allows the stirring blades to rotate multiple times for every rotation of the main stirring mechanism, resulting in multiple mixing cycles of the mixture. This achieves the required number of mixing cycles for uniform material mixing in a shorter time.

[0038] The number of stirring cycles required to complete the mixing remains the same, but the time required is shortened, thereby improving the efficiency of mixing and greatly reducing the mixing time, which in turn greatly improves the mixing efficiency of the mixer.

[0039] One end of the hollow main shaft is connected to a speed reducer, and the input shaft of the speed reducer is connected to a motor. The other end of the hollow main shaft is connected to a sliding connector. Both the hollow main shaft and the hollow stirring arm are hollow structures, ensuring that the auxiliary stirring mechanism can be connected to an external power source during the rotation of the hollow main shaft. Placing the power cord inside the hollow main shaft and hollow stirring arm also prevents the power cord from being worn by materials.

[0040] A protective shell is installed on the outside of the hub motor to prevent wear on the hub motor. A sealing ring is installed at the gap between the protective shell and the hub motor to provide dust protection and reduce the possibility of dust entering the hub motor.

[0041] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0042] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0043] Example 1 of the dry mortar mixer provided by this utility model:

[0044] like Figures 1-8As shown, the dry mortar mixer includes a main mixing mechanism 200 and an auxiliary mixing mechanism 300 installed on the main mixing mechanism 200.

[0045] The main stirring mechanism 200 includes a hollow main shaft 210 rotatably mounted in the mixing box. The hollow main shaft 210 is connected to the mixing box through a main shaft bearing 220. The cross-section of the hollow main shaft 210 is square, which can play the role of stopping rotation and limiting movement. It is also hollow, which facilitates the passage of the power line 320 of the auxiliary stirring mechanism 300. The corners of the hollow main shaft 210 are rounded.

[0046] A number of hollow stirring arms 230 are detachably connected to the hollow main shaft 210. Each hollow stirring arm 230 includes a connecting sleeve 231 for connecting the hollow main shaft 210 and an arm body 232. The arm body 232 is a hollow structure. The connecting sleeve 231 is fixedly connected to the arm body 232. The connecting sleeve 231 is provided with a rectangular mounting hole 234 for cooperating with the hollow main shaft 210 to prevent the arm body 232 from rotating. The connecting sleeve 231 is sleeved on the hollow main shaft 210 and connected to the hollow main shaft 210 by bolts.

[0047] The end of the boom 232 away from the connecting sleeve 231 is bolted to a cover plate 235 for easy maintenance.

[0048] The hollow main shaft 210 has a wire hole 211 corresponding to the hollow stirring arm 230, so that the power cord 320 can pass through.

[0049] One end of the hollow spindle 210 is connected to a power structure for driving the hollow spindle 210 to rotate. The power structure includes a reducer and a drive motor. In other embodiments, the power structure may also use other driving devices. The other end of the hollow spindle 210 is connected to a sliding connector 100 for conducting electricity. Since the hollow spindle 210 will rotate, the power line 320 cannot be directly and fixedly connected to an external power source. By setting the sliding connector 100, it can be ensured that the hollow spindle 210 can still be stably connected to an external power source during rotation.

[0050] The auxiliary stirring mechanism 300 is mounted on the hollow stirring arm 230. The auxiliary stirring mechanism 300 includes stirring blades 330 for stirring materials and a drive structure for driving the stirring blades 330 to rotate. In this embodiment, the drive structure adopts a hub motor 310. The hub motor 310 is connected to the hollow stirring arm 230 through a motor shaft 340. The hub motor 310 has its own reduction component and is relatively small in size, making it convenient to use directly. The hub motor 310 is existing technology, and its structure will not be described in detail here.

[0051] A protective housing 350 is connected to the outside of the hub motor 310 to protect it and prevent dust from entering. The hub motor 310 has evenly distributed stirring blades 330, which are mounted on the protective housing 350. A rubber sealing ring is provided at the gap between the protective housing 350 and the hub motor 310 to prevent dust from entering the hub motor 310.

[0052] The power cable 320 of the drive structure passes through the hollow stirring arm 230 and the wire hole 211 in sequence, enters the hollow main shaft 210, and connects to the sliding connector 100.

[0053] Embodiment 2 of the dry mortar mixer provided by this utility model:

[0054] Its main difference from Example 1 is:

[0055] In Example 1, the drive structure uses a hub motor.

[0056] In this embodiment, the drive structure adopts a geared motor, a protective shell is set on the hollow stirring arm, the geared motor is set inside the protective shell, and the output shaft of the geared motor is connected to the stirring blade. It is sufficient to ensure that the output shaft of the geared motor and the opening of the protective shell are sealed.

[0057] Compared with Example 1, this embodiment has a lower cost, but correspondingly, it occupies a larger space.

[0058] While this specification has shown and described numerous embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A dry mortar mixer, characterized in that, include: The main stirring mechanism (200) includes a hollow main shaft (210) rotatably mounted in a mixing tank. Several hollow stirring arms (230) are detachably connected to the hollow main shaft (210). The hollow main shaft (210) has wire holes (211) corresponding to the hollow stirring arms (230). One end of the hollow main shaft (210) is connected to a power structure for driving the hollow main shaft (210) to rotate, and the other end of the hollow main shaft (210) is connected to a sliding connector (100) for conducting electricity. A secondary stirring mechanism (300) is mounted on a hollow stirring arm (230). The secondary stirring mechanism (300) includes stirring blades (330) for stirring materials and a drive structure for driving the stirring blades (330) to rotate. The power line (320) of the drive structure passes through the hollow stirring arm (230) and the wire hole (211) in sequence and enters the hollow main shaft (210) to connect with the sliding connector (100).

2. The dry mortar mixer according to claim 1, characterized in that: The hollow main shaft (210) is connected to the mixing tank via a main shaft bearing (220).

3. The dry mortar mixer according to claim 1, characterized in that: The hollow stirring arm (230) includes a connecting sleeve (231) for connecting the hollow main shaft (210) and an arm body (232). The arm body (232) is a hollow structure, and the connecting sleeve (231) is fixedly connected to the arm body (232).

4. The dry mortar mixer according to claim 3, characterized in that: The hollow spindle (210) has a rectangular cross-section. The connecting sleeve (231) is provided with a rectangular mounting hole (234) for cooperating with the hollow spindle (210) to prevent the arm body (232) from rotating. The connecting sleeve (231) is sleeved on the hollow spindle (210) and connected to the hollow spindle (210) by bolts.

5. The dry mortar mixer according to claim 3, characterized in that: The end of the arm (232) away from the connecting sleeve (231) is bolted to a cover plate (235) for easy maintenance.

6. The dry mortar mixer according to claim 1, characterized in that: The drive structure is a hub motor (310), and stirring blades (330) are evenly distributed on the hub motor (310).

7. The dry mortar mixer according to claim 6, characterized in that: The hub motor (310) is connected to a protective housing (350) to protect the hub motor (310) and prevent dust from entering the hub motor (310).

Images