Cement quantitative leading-in device for concrete production

Abstract

The utility model relates to a cement quantitative leading-in device for concrete production, and belongs to the technical field of concrete production, the cement quantitative leading-in device for concrete production comprises a stirring tank for concrete production and a stirring rod, a double-shaft gear motor is fixedly mounted on the stirring tank, and a quantitative conveying mechanism is arranged above the stirring tank; the quantitative conveying mechanism comprises a driving shifting disc, a grooved wheel disc, a connecting arm, a shifting rod, a connecting shaft, a quantitative shell and a material separation rotor; and a shifting groove matched with the shifting rod is formed in the grooved wheel disc, a linkage structure is arranged between the grooved wheel disc and the material separation rotor and comprises a transmission gear, a driven gear and a linkage shaft, and the number of the connecting shafts is two. According to the cement quantitative leading-in device for concrete production, the stirring rod and the quantitative conveying mechanism are driven by the double-shaft gear motor, accurate quantitative conveying is achieved, the material conveying accuracy is guaranteed, it is guaranteed that materials are fully mixed in the stirring tank, and the advantages of quantitative conveying and good stirring effect are achieved.

Description

Technical Field

[0001] This application relates to the field of concrete production technology, and in particular to a cement metering device for concrete production. Background Technology

[0002] Cement is a powdered hydraulic inorganic binder. When mixed with water, it forms a paste that hardens in air or water, and can firmly bind materials such as sand and stone together. It is commonly used in concrete mixing and processing. Concrete made from cement-bonded aggregate not only has high strength after hardening but also resists erosion from fresh or salt water. It has long been widely used in civil engineering, water conservancy, and national defense projects. The proportions and measurements of different additives used in concrete mixing and production affect the final strength of the concrete product. The common practice is to weigh and portion the concrete ingredients before adding them to the mixer, but this is time-consuming and labor-intensive.

[0003] A search revealed that Chinese utility model patent CN217993008U discloses a cement quantitative introduction device for concrete production, comprising a weighing area, an inclined plate slidably connected below the weighing area, a pressure sensor fixedly connected below the inclined plate, the weighing area fixedly connected below the pressure sensor, a discharge baffle rotatably connected to one side of the weighing area, a dust pump fixedly connected above the weighing area, a suction pipe fixedly connected to one end of the dust pump, a support groove fixedly connected to one side of the weighing area, a baffle plate slidably connected above the support groove, a return pipe fixedly connected to the other side of the weighing area, a baffle motor fixedly connected to one side of the weighing area, the baffle plate being driven to the power output end of the baffle motor, and a return baffle rotatably connected to one side of the return pipe. This device has the advantages of weighing cement powder through the inclined plate and pressure sensor, allowing workers to directly know the feed weight, and controlling the dust pump to stop feeding and the discharge baffle to unload material via the pressure sensor.

[0004] In the process of implementing this application, the technology has at least the following problems: when the cement quantitative introduction device for concrete production introduces cement into the mixing equipment, the cement falls directly into the mixing tank without being quantitatively conveyed, which will cause the mixing process to take longer to achieve the required uniformity, resulting in uneven distribution of cement in the mixing tank and affecting the mixing effect. Therefore, a cement quantitative introduction device for concrete production is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a cement quantitative inlet device for concrete production, which has the advantages of quantitative conveying and good mixing effect, and solves the problem that cement falling directly into the mixing tank can easily affect the mixing effect.

[0006] In summary, this application provides the following technical solution: a cement quantitative introduction device for concrete production, comprising a concrete production mixing tank and a mixing rod, wherein a dual-shaft reduction motor is fixedly installed on the mixing tank, and a quantitative conveying mechanism is provided above the mixing tank;

[0007] The quantitative conveying mechanism includes an active dial, a grooved wheel, a connecting arm, a lever, a connecting shaft, a quantitative housing, and a material separator rotor;

[0008] The grooved wheel has a groove inside that matches the lever. A linkage structure is provided between the grooved wheel and the material separator rotor. The linkage structure includes a transmission gear, a driven gear, and a linkage shaft. There are two connecting shafts. The two connecting shafts are fixed to the driving lever and the grooved wheel, respectively. The connecting shaft connected to the driving lever is connected to the output shaft of the dual-axis reduction motor.

[0009] This application adopts the above-mentioned technical solution, which uses a dual-shaft geared motor to drive the stirring rod and the quantitative conveying mechanism to achieve precise quantitative conveying, ensuring the accuracy of material conveying, ensuring that the material is fully mixed in the mixing tank, and achieving the advantages of quantitative conveying and good mixing effect.

[0010] Furthermore, the stirring rod is rotatably installed inside the mixing tank, and its top end is connected and fixed to another output shaft of the dual-shaft reduction motor. The metering shell is fixedly connected to the upper surface of the mixing tank.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the stirring rod is directly driven by a dual-shaft geared motor, which can provide stable rotational power and ensure that the materials are fully mixed in the mixing tank.

[0012] Furthermore, a limit frame is fixedly installed on the upper surface of the mixing tank, and both connecting shafts are connected to the limit frame bearings.

[0013] The beneficial effect of adopting the above-mentioned further solution is that by installing the limit bracket, the connecting shaft can be limited and supported, so that it can be driven stably.

[0014] Furthermore, the connecting shaft is fixed to the transmission gear, and the two ends of the linkage shaft are respectively fixed to the driven gear and the material separator rotor. The transmission gear meshes with the driven gear, and the transmission gear and the driven gear are of different sizes.

[0015] The beneficial effect of adopting the above-mentioned further solution is that by using transmission gears and driven gears of different sizes, it is possible to change the speed and torque, reduce speed and increase torque, and improve the transmission effect.

[0016] Furthermore, the connecting arm is fixedly installed on the outer surface of the connecting shaft, the lever is installed at the other end of the connecting arm, and there are multiple lever slots, which are equidistantly arranged around the grooved wheel disk. The lever and the multiple lever slots are intermittently engaged.

[0017] The beneficial effect of adopting the above-mentioned further scheme is that the rotation of the active dial, through the cooperation of the dial rod and multiple dial slots, intermittently drives the grooved wheel to rotate, thereby realizing the intermittent rotation of the material-separating rotor.

[0018] Furthermore, the metering shell is hollow inside, the material separator rotor bearing is installed inside the metering shell, and the metering shell is open on both the upper and lower sides.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the material separator rotor bearing is installed inside the metering housing, which ensures that the material separator rotor can transport materials stably and improves the material conveying effect.

[0020] Furthermore, the material separator rotor is composed of two fan-shaped blocks arranged opposite each other, and a material-containing cavity is formed between the material separator rotor and the metering shell.

[0021] The beneficial effect of adopting the above-mentioned further scheme is that the material cavity formed by the material separator rotor and the metering shell is always consistent, so the volume of material entering the mixing tank is the same, thereby achieving the effect of quantitative introduction.

[0022] Furthermore, scraper strips are fixedly connected to both the upper and lower sides of the material separator rotor.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the installation of the scraper can scrape off the material remaining inside the metering shell when the material separator rotor rotates.

[0024] Compared with the prior art, this application provides a cement metering device for concrete production, which has the following advantages:

[0025] 1. This cement metering device for concrete production uses a dual-shaft geared motor to drive the mixing rod and the metering conveying mechanism, achieving precise metering and ensuring the accuracy of material conveying. This ensures that the material is fully mixed in the mixing tank, achieving the advantages of metered conveying and good mixing effect. It solves the problem that cement falling directly into the mixing tank can easily affect the mixing effect.

[0026] 2. This cement metering device for concrete production, through the active dial and the cooperation of the dial rod and the dial groove, can intermittently drive the groove wheel to rotate. This intermittent motion mechanism ensures that the amount of material conveyed each time is consistent. The material cavity formed by the material separator rotor and the metering shell has a fixed size, which further ensures the accuracy of material conveying. Attached Figure Description

[0027] Figure 1 This is a structural sectional view of this application;

[0028] Figure 2 This is a front view of the structure of this application;

[0029] Figure 3 This is a schematic diagram of the active dial structure of this application;

[0030] Figure 4 This is a schematic diagram of the material cavity structure of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Mixing tank; 2. Mixing rod; 3. Dual-shaft geared motor; 4. Limiting frame; 5. Active dial; 6. Grooved wheel disc; 7. Connecting arm; 8. Dial rod; 9. Dial groove; 10. Connecting shaft; 11. Metering shell; 12. Material separator rotor; 13. Linkage structure; 1301. Transmission gear; 1302. Driven gear; 1303. Linkage shaft; 14. Material chamber; 15. Scraper. Detailed Implementation

[0033] Please see Figures 1 to 4 A cement metering device for concrete production includes a concrete mixing tank 1 and a mixing rod 2. A dual-shaft reduction motor 3 is fixedly installed on the mixing tank 1, and a metering conveying mechanism is provided above the mixing tank 1. The metering conveying mechanism includes an active dial 5, a grooved wheel 6, a connecting arm 7, a lever 8, a connecting shaft 10, a metering shell 11, and a material separating rotor 12. The grooved wheel 6 has a groove 9 inside that matches the lever 8. A linkage structure 13 is provided between the grooved wheel 6 and the material separating rotor 12. The linkage structure 13 includes a transmission gear 1301, a driven gear 1302, and a linkage shaft 1303. There are two connecting shafts 10, which are fixed to the active dial 5 and the grooved wheel 6, respectively. The connecting shaft 10 connected to the active dial 5 is connected and fixed to the output shaft of the dual-shaft reduction motor 3.

[0034] Specifically, the stirring rod 2 is rotatably installed inside the mixing tank 1, and its top end is connected and fixed to another output shaft of the dual-shaft geared motor 3. The metering shell 11 is fixedly connected to the upper surface of the mixing tank 1. A limit frame 4 is fixedly installed on the upper surface of the mixing tank 1. Through the installation of the limit frame 4, the connecting shaft 10 can be limited and supported, so that it can be driven stably. Both connecting shafts 10 are connected to the bearings of the limit frame 4. The top end of the metering shell 11 can be connected to the conveying equipment. The dual-shaft geared motor 3 drives the stirring rod 8 and the active dial 5 to rotate respectively. The rotation of the stirring rod 2 mixes the material. The rotation of the active dial 5 drives the grooved wheel 6 to rotate intermittently through the interaction of the dial rod 8 and multiple dial slots 9. The rotation of the grooved wheel 6 drives the material separating rotor 12 to rotate intermittently through the transmission gear 1301, the driven gear 1302 and the linkage shaft. Since the material separating rotor 12 and the metering shell 11 form the same material cavity 14, the volume of material entering the mixing tank 1 is the same, thus achieving the effect of quantitative introduction.

[0035] In this embodiment, the connecting shaft 10 is fixed to the transmission gear 1301, and both ends of the linkage shaft 1303 are fixed to the driven gear 1302 and the material separator rotor 12, respectively. The transmission gear 1301 and the driven gear 1302 mesh with each other, and the transmission gear 1301 and the driven gear 1302 are of different sizes. By using the transmission gear 1301 and the driven gear 1302 of different sizes, the speed and torque can be changed to reduce speed and increase torque, thereby improving the transmission effect.

[0036] It should be noted that the design of the drive gear 1301 and driven gear 1302, which are of different sizes, brings several advantages, mainly reflected in the following aspects: 1. Changing speed and torque: When the small drive gear drives the large driven gear, it can reduce speed and increase torque. This design is very useful in situations requiring reduced speed and increased torque. 2. Accelerating and reducing torque: When the large drive gear drives the small driven gear, it can accelerate and reduce torque. This design is suitable for situations requiring higher speeds but relatively lower torque. 2. Improving transmission efficiency: Gear sets transmit power and motion through precise meshing, a highly efficient transmission method. In practical applications, by appropriately selecting gear sizes and gear ratios, transmission efficiency can be further optimized, reducing energy loss. 3. Optimizing mechanical performance: By using combinations of gears of different sizes, the overall performance of the machine can be optimized. 4. Adapting to various working environments: The design of the gear set allows it to adapt to various working environments and conditions. Whether operating at high temperatures, heavy loads, or high speeds, the durability and reliability of the gear set can be improved by selecting appropriate gear materials and lubrication methods. V. Achieving Complex Transmissions: By combining multiple gears of varying sizes, complex transmission systems can be achieved. Such systems can perform various transmission tasks, such as changing the direction of transmission and achieving multi-axis transmission. In summary, gear sets, composed of driving and driven gears of different sizes, offer numerous advantages, including changing speed and torque, improving transmission efficiency, optimizing mechanical performance, adapting to various working environments, and achieving complex transmissions. These advantages make gear sets widely applicable in mechanical transmission systems.

[0037] In this embodiment, the connecting arm 7 is fixedly installed on the outer surface of the connecting shaft 10, the lever 8 is installed at the other end of the connecting arm 7, and there are multiple lever slots 9, which are equidistantly arranged around the grooved wheel disk 6. The lever 8 and the multiple lever slots 9 are intermittently engaged. The rotation of the active lever disk 5 drives the grooved wheel disk 6 to rotate intermittently through the engagement of the lever 9 and the multiple lever slots 9, thereby intermittently driving the material separator rotor 12 to rotate.

[0038] Specifically, the metering shell 11 is hollow inside, and the bearing of the material separator rotor 12 is installed inside the metering shell 11 to ensure stable conveying and improve the material conveying effect. The metering shell 11 is open on both the top and bottom. The material separator rotor 12 is composed of two fan-shaped blocks arranged opposite each other, and a material receiving cavity 14 is formed between the material separator rotor 12 and the metering shell 11.

[0039] To improve the material conveying efficiency, in this embodiment, scraper strips 15 are fixedly connected to both the upper and lower sides of the material separator rotor 12. The installation of the scraper strips 15 enables the material remaining inside the metering shell 11 to be scraped off when the material separator rotor 12 rotates.

[0040] In summary, driving the stirring rod 2 and the metering conveying mechanism with a dual-shaft geared motor 3 offers the following advantages: High-efficiency mixing: The stirring rod 2, directly driven by the dual-shaft geared motor 3, provides stable rotational power, ensuring thorough mixing of materials within the mixing tank. The shearing force and convection generated by the rotation of the stirring rod 2 help break up agglomerates between material particles, improving mixing uniformity. Precise metering: The active dial 5, through the cooperation of the dial rod 8 and the dial groove 9, intermittently drives the grooved wheel 6 to rotate. This intermittent motion mechanism ensures consistent material delivery each time. The fixed dimensions of the material-containing cavity 14 formed by the separating rotor 12 and the metering shell 11 further guarantee the accuracy of material delivery. Compact structure: The entire conveying system adopts a compact mechanical design, occupying little space and easily integrated into existing production lines. The rational design of the connections and transmissions between components reduces energy loss and noise pollution.

[0041] The working principle of the above embodiments is as follows:

[0042] In use, the dual-shaft reduction motor 3 drives the stirring rod 8 and the active dial 5 to rotate respectively. The rotating stirring rod 2 mixes the materials. The rotating active dial 5 drives the grooved wheel 6 to rotate intermittently through the interaction of the dial rod 8 and multiple dial slots 9. The rotation of the grooved wheel 6 drives the material separator rotor 12 to rotate intermittently through the transmission gear 1301, the driven gear 1302 and the linkage shaft. Since the material separator rotor 12 and the material container 14 formed by the metering shell 11 are always consistent, the volume of material entering the mixing tank 1 is the same, thus achieving the effect of quantitative introduction.

Claims

1. A cement dosing device for concrete production, comprising a mixing tank (1) and a mixing rod (2) for concrete production, characterized in that: The double-shaft speed reducer motor (3) is fixedly installed on the stirring tank (1), and a quantitative conveying mechanism is arranged above the stirring tank (1); The quantitative conveying mechanism comprises a driving dial (5), a grooved wheel disc (6), a connecting arm (7), a dial lever (8), a connecting shaft (10), a quantitative shell (11) and a material-separating rotor (12); The inside of the grooved wheel disc (6) is provided with dial grooves (9) matched with the dial lever (8), the grooved wheel disc (6) and the material-separating rotor (12) are provided with a linkage structure (13), the linkage structure (13) comprises a driving gear (1301), a driven gear (1302) and a linkage shaft (1303), the number of the connecting shaft (10) is two, and the two connecting shafts (10) are respectively fixed with the driving dial (5) and the grooved wheel disc (6), wherein the connecting shaft (10) connected with the driving dial (5) is fixedly connected with the output shaft of the double-shaft speed reducer motor (3).

2. The cement dosing and introducing device for concrete production according to claim 1, characterized in that: The stirring rod (2) is rotatably installed in the stirring tank (1), and the top end thereof is fixedly connected with the other output shaft of the double-shaft speed reducer motor (3), and the quantitative shell (11) is fixedly communicated with the upper surface of the stirring tank (1).

3. The cement dosing and introducing device for concrete production according to claim 1, characterized in that: The upper surface of the stirring tank (1) is fixedly provided with a limiting frame (4), and the two connecting shafts (10) are both connected with the bearing of the limiting frame (4).

4. The cement dosing and introducing device for concrete production according to claim 1, characterized in that: The connecting shaft (10) is fixed with the driving gear (1301), the two ends of the linkage shaft (1303) are respectively fixed with the driven gear (1302) and the material-separating rotor (12), the driving gear (1301) is engaged with the driven gear (1302), and the driving gear (1301) and the driven gear (1302) are different in size.

5. The cement dosing and introducing device for concrete production according to claim 1, characterized in that: The connecting arm (7) is fixedly installed on the outer surface of the connecting shaft (10), the dial lever (8) is installed at the other end of the connecting arm (7), the number of the dial grooves (9) is plural, and the plural dial grooves (9) are equidistantly arranged around the grooved wheel disc (6), and the dial lever (8) is intermittently matched with the plural dial grooves (9).

6. The cement dosing and introducing device for concrete production according to claim 1, characterized in that: The quantitative shell (11) is hollow, the material-separating rotor (12) is bearing-mounted in the quantitative shell (11), and the quantitative shell (11) is penetrated through at the upper and lower sides.

7. The cement weighing and introducing device for concrete production according to claim 1, characterized in that: The material-separating rotor (12) is composed of two oppositely arranged fan-shaped blocks, and a material-containing cavity (14) is formed between the material-separating rotor (12) and the quantitative shell (11).

8. The cement weighing and introducing device for concrete production according to claim 1, characterized in that: The material-separating rotor (12) is fixedly connected with a scraping strip (15) at the upper and lower sides.

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