Mixing device for building concrete

Abstract

The utility model relates to the technical field of concrete, in particular to a mixing device for building concrete, which comprises a building concrete mixing drum, a feed port arranged on the upper side of the building concrete mixing drum, a discharge port arranged on the lower side of the building concrete mixing drum, and a transmission case fixedly mounted on the upper side of the building concrete mixing drum. A stirring assembly is arranged on the transmission box, and a discharging assembly is arranged on the lower side of the discharging opening; the stirring assembly comprises a first motor. The first motor is used for driving the spiral twisting piece and the stirring rod to synchronously rotate and stir, mixing of materials in the building concrete stirring barrel is fully enhanced, meanwhile, aggregate with large density is prevented from sinking to the bottom of the building concrete stirring barrel, and the aggregate in concrete is evenly distributed; the second motor drives the conveying twisting piece to rotate, materials at the discharging port are actively conveyed to the lower side, active conveying force is provided, the discharging port is prevented from being blocked, and practicability is improved.

Description

Technical Field

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

[0002] Building concrete is a building material widely used in civil engineering, which is mainly prepared by mixing cement, aggregates (sand, stones) and water in a certain proportion.

[0003] The utility model patent with the authorized publication number of CN215661020U discloses a concrete mixing device for municipal building construction, including a bracket. It is characterized in that: a mixing box is fixedly installed at the top of the bracket, a power mechanism is arranged on the right side of the top of the bracket, a stirring device is fixedly installed in the mixing box through the power mechanism, a movable groove is opened at the top of the inner wall of the mixing box, and a transmission mechanism is fixedly installed at the top of the power mechanism. By setting a motor and a driving wheel to drive a rotating cover and a driven gear to rotate, and then driving a driving gear and a transmission column to rotate, so that a cleaning column and a cleaning ring rotate and scrape along the inside of the mixing box, the concrete cannot remain on the inner wall of the mixing box for a long time during the mixing and stirring process, effectively cleaning the inner wall of the mixing box. Compared with the prior art, this application has the advantage of good cleaning effect.

[0004] The above patent has the following defects in the use process: it is known that the density of the aggregates in the concrete is relatively large, and during the stirring process, the aggregates are prone to sink to the bottom of the stirring cylinder. The stirring mechanism in this patent cannot prevent the aggregates from sinking, resulting in uneven distribution of the concrete aggregates after stirring. In addition, due to the relatively large consistency of the concrete, it is easy to cause blockage at the discharge port, resulting in unsmooth discharge. For this reason, we propose a mixing device for building concrete to solve the above technical defects. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defects in the prior art, and a mixing device for building concrete is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A mixing device for building concrete, comprising a building concrete mixing drum. A feeding port is arranged on the upper side of the building concrete mixing drum, and a discharging port is arranged on the lower side of the building concrete mixing drum. A transmission box is fixedly installed on the upper side of the building concrete mixing drum, a stirring assembly is arranged on the transmission box, and a discharging assembly is arranged on the lower side of the discharging port; The stirring assembly includes a first motor, an output shaft is fixedly installed at the output end of the first motor, a central gear is fixedly installed at the bottom of the output shaft, a first stirring shaft is fixedly installed at the bottom of the central gear, stirring rods are installed on the side wall of the first stirring shaft, four side gears are meshed on the side of the central gear, a second stirring shaft is fixedly installed at the bottom of the side gear, and spiral blades are fixedly installed on the outside of the second stirring shaft; The discharging assembly includes a second motor, a first rotating shaft is fixedly installed at the output end of the second motor, a first bevel gear is fixedly installed at the end of the first rotating shaft, a second bevel gear is meshed on the first bevel gear, a second rotating shaft is fixedly installed on the second bevel gear, and a feeding spiral blade is fixedly installed on the side wall of the second rotating shaft.

[0008] Preferably, a control switch is installed on the front side of the building concrete mixing drum.

[0009] Preferably, a plurality of support columns are arranged at the bottom of the building concrete mixing drum.

[0010] Preferably, the output shaft rotates through to the inside of the transmission box, the central gear and the side gears are both rotatably installed at the bottom inside the transmission box, and the first stirring shaft and the second stirring shaft both rotate through to the inside of the building concrete mixing drum.

[0011] Preferably, the stirring track of the stirring rod is located inside the stirring track of the spiral blade.

[0012] Preferably, the spiral blades on adjacent second stirring shafts are arranged in opposite spiral directions.

[0013] Preferably, a conical cover is arranged at the bottom of the discharging port, three connecting rods are connected between the conical cover and the discharging port, a mounting seat is fixedly installed at the bottom of the building concrete mixing drum, the second motor is fixedly installed on the side of the mounting seat, and the first rotating shaft rotates through the mounting seat.

[0014] Preferably, the first bevel gear and the second bevel gear are both located inside the conical cover, and the first rotating shaft and the second rotating shaft both rotate through to the inside of the conical cover. The feeding spiral blade is located inside the discharging port, and the feeding spiral blade does not contact the inner wall of the discharging port.

[0015] Compared with the related art, a mixing device for building concrete proposed by the present utility model has the following beneficial effects:

[0016] In the present utility model, for a mixing device used for building concrete, a first motor is utilized to drive the output shaft to rotate, thereby driving the central gear to rotate. By the central gear, four side gears meshing with its sides are synchronously driven to rotate. Then, the central gear drives the first stirring shaft at its bottom and the stirring rods on the first stirring shaft to rotate. The side gears drive the second stirring shaft at the bottom and the spiral blades on the second stirring shaft to rotate. When the stirring rods are stirring, the concrete in the middle part is fully mixed and pushed towards the surroundings. The spiral blades on the sides have a spiral stirring and conveying effect on the concrete during rotation, and can rotate and convey the materials at the bottom upwards, preventing the aggregates at the bottom from depositing and making the aggregates evenly distributed. At the same time, the spiral direction of the spiral blades arranged outside the stirring rods is set such that the spiral directions of adjacent spiral blades are opposite. Then, adjacent spiral blades rotate in the same direction under the synchronous drive of the side gears. Furthermore, when adjacent spiral blades are rotating, their material conveying directions are opposite. Under the action of the material conveying effect in the opposite direction, the full convective mixing effect of the materials in the nearby range stirred by each spiral blade is strengthened. Then, under the synchronous rotation and stirring action of the spiral blades and the stirring rods, the mixing of the materials inside the building concrete mixing drum is fully strengthened. At the same time, it also prevents the aggregates with a larger density from sinking to the bottom of the building concrete mixing drum, making the materials in the concrete evenly distributed, and thus improving the production quality of the concrete.

[0017] In the present utility model, for a mixing device used for building concrete, a discharging assembly is provided at the discharging port. When discharging, the second motor can be started to drive the first rotating shaft to rotate. The first rotating shaft drives the second rotating shaft to rotate through the meshing transmission of the first bevel gear and the second bevel gear. Then, the conveying blades on the second rotating shaft rotate inside the discharging port, actively conveying the materials at the discharging port downwards, providing an active conveying force, preventing blockage at the discharging port, and improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic three-dimensional structure diagram of a mixing device for building concrete proposed by the present utility model Figure 1 ;

[0019] Figure 2 is a schematic three-dimensional structure diagram of a mixing device for building concrete proposed by the present utility model Figure 2 ;

[0020] Figure 3 is a schematic three-dimensional structure diagram of the stirring assembly of a mixing device for building concrete proposed by the present utility model Figure 1 ;

[0021] Figure 4 is a schematic three-dimensional structure diagram of the stirring assembly of a mixing device for building concrete proposed by the present utility model Figure 2 ;

[0022] Figure 5 The schematic diagram of the three - dimensional structure splitting of the discharging component of a mixing device for building concrete proposed by the present utility model.

[0023] In the figure: 1. Building concrete mixing drum; 2. Control switch; 3. Feeding port; 4. Transmission box; 5. Discharge port; 6. Connecting rod; 7. Conical cover; 8. Mounting seat; 9. First motor; 10. Output shaft; 11. Central gear; 12. First stirring shaft; 13. Stirring rod; 14. Side gear; 15. Second stirring shaft; 16. Spiral blade; 17. Second motor; 18. First rotating shaft; 19. First bevel gear; 20. Second bevel gear; 21. Second rotating shaft; 22. Feeding spiral blade. Specific embodiments

[0024] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Refer to Figures 1 - 5 and, please refer to Figures 1 - 5 wherein, Figure 1 is the schematic diagram of the three - dimensional structure of a mixing device for building concrete proposed by the present utility model Figure 1 ; Figure 2 is the schematic diagram of the three - dimensional structure of a mixing device for building concrete proposed by the present utility model Figure 2 ; Figure 3 is the schematic diagram of the three - dimensional structure of the stirring component of a mixing device for building concrete proposed by the present utility model Figure 1 ; Figure 4 is the schematic diagram of the three - dimensional structure of the stirring component of a mixing device for building concrete proposed by the present utility model Figure 2 ; Figure 5 is the schematic diagram of the three - dimensional structure splitting of the discharging component of a mixing device for building concrete proposed by the present utility model. A mixing device for building concrete includes: a building concrete mixing drum 1, a feeding port 3 is arranged on the upper side of the building concrete mixing drum 1, a discharge port 5 is arranged on the lower side of the building concrete mixing drum 1, a transmission box 4 is fixedly installed on the upper side of the building concrete mixing drum 1, a control switch 2 is installed on the front side of the building concrete mixing drum 1, several support columns are arranged at the bottom of the building concrete mixing drum 1, a stirring component is arranged on the transmission box 4, and a discharging component is arranged on the lower side of the discharge port 5.

[0026] In this method, the stirring assembly includes a first motor 9. A output shaft 10 is fixedly installed at the output end of the first motor 9. A central gear 11 is fixedly installed at the bottom of the output shaft 10. A first stirring shaft 12 is fixedly installed at the bottom of the central gear 11. Stirring rods 13 are installed on the side wall of the first stirring shaft 12. Four side gears 14 are meshed on the side of the central gear 11. A second stirring shaft 15 is fixedly installed at the bottom of the side gear 14. A spiral blade 16 is fixedly installed on the outside of the second stirring shaft 15. The output shaft 10 rotates through to the inside of the transmission box 4. The central gear 11 and the side gears 14 are both rotatably installed at the inner bottom of the transmission box 4. The first stirring shaft 12 and the second stirring shaft 15 both rotate through to the inside of the building concrete mixing drum 1.

[0027] Through the above arrangement, when the central gear 11 is driven to rotate by the first motor 9, it can drive the four side gears 14 outside it to rotate synchronously at the same rotation direction and speed. Furthermore, the four second stirring shafts 15 below the side gears 14 and the spiral blades 16 on the side walls of the second stirring shafts 15 rotate. At the same time, the first stirring shaft 12 at the bottom of the central gear 11 and the stirring rods 13 on the first stirring shaft 12 rotate synchronously to stir the concrete in the building concrete mixing drum 1.

[0028] In this method, the discharging assembly includes a second motor 17. A first rotating shaft 18 is fixedly installed at the output end of the second motor 17. A first bevel gear 19 is fixedly installed at the end of the first rotating shaft 18. A second bevel gear 20 is meshed on the first bevel gear 19. A second rotating shaft 21 is fixedly installed on the second bevel gear 20. A feeding spiral blade 22 is fixedly installed on the side wall of the second rotating shaft 21.

[0029] Through the above arrangement, when the second motor 17 rotates, it drives the output shaft 10 to rotate. The output shaft 10 drives the second rotating shaft 21 to rotate through the meshing transmission of the first bevel gear 19 and the second bevel gear 20. Then the feeding spiral blade 22 on the second rotating shaft 21 rotates inside the discharging port 5 to actively convey the materials at the discharging port 5 downward.

[0030] In this method, the stirring track of the stirring rods 13 is located inside the stirring track of the spiral blades 16.

[0031] Through the above arrangement, when the stirring rods 13 rotate, their rotation tracks do not intersect with the stirring track of the spiral blades 16, avoiding collision between the stirring rods 13 and the spiral blades 16.

[0032] In this method, the spiral blades 16 on adjacent second stirring shafts 15 are arranged in opposite spirals.

[0033] With the above settings, driven by the side gear 14, the second stirring shaft 15 drives the spiral blade 16 to rotate in the same direction. Since the spiral blades 16 on adjacent second stirring shafts 15 are arranged with opposite spirals, the spiral feeding directions generated by adjacent spiral blades 16 are opposite. Under the action of their reverse feeding effect, the sufficient convective mixing effect of the materials stirred by each spiral blade 16 in the nearby range is strengthened.

[0034] In this method, a conical cover 7 is provided at the bottom of the discharge port 5. Three connecting rods 6 are connected between the conical cover 7 and the discharge port 5. A mounting seat 8 is fixedly installed at the bottom of the building concrete mixing drum 1. The second motor 17 is fixedly installed on the side of the mounting seat 8. The first rotating shaft 18 rotates through the mounting seat 8. The first bevel gear 19 and the second bevel gear 20 are both located inside the conical cover 7. The first rotating shaft 18 and the second rotating shaft 21 both rotate through to the inside of the conical cover 7. The feeding spiral blade 22 is located inside the discharge port 5 and does not contact the inner wall of the discharge port 5.

[0035] With the above settings, the conical cover 7 makes the meshing space of the first bevel gear 19 and the second bevel gear 20 a sealed space, ensuring the stability of meshing. At the same time, the inclined section on the outside of the conical cover 7 has a good sliding guiding effect when concrete slides on it, preventing the concrete from accumulating on the conical cover 7.

[0036] The working principle of a mixing device for building concrete provided by the present utility model is as follows:

[0037] During use, the materials for producing concrete are added into the building concrete mixing drum 1 through the feeding port 3. After adding water, the mixing production work is carried out. The first motor 9 is started, and the central gear 11 is driven to rotate through the output shaft 10. The central gear 11 synchronously drives the four side gears 14 meshing on its side to rotate. Then the central gear 11 drives the first stirring shaft 12 at its bottom and the stirring rods 13 on the first stirring shaft 12 to rotate. The side gears 14 drive the second stirring shafts 15 at the bottom and the spiral blades 16 on the second stirring shafts 15 to rotate. When the stirring rods 13 are stirring, the concrete in the middle part is fully mixed and pushed outwards. The spiral blades 16 on the side have a spiral stirring and conveying effect on the concrete during rotation, and can rotate and convey the aggregate deposited at the bottom upwards, preventing the aggregate from depositing at the bottom and making the aggregate distribution uniform. When the concrete is stirred evenly, the discharge port 5 is opened, and the second motor 17 is synchronously started. When the second motor 17 rotates, it drives the output shaft 10 to rotate. The output shaft 10 drives the second rotating shaft 21 to rotate through the meshing transmission of the first bevel gear 19 and the second bevel gear 20. Then the feeding spiral blade 22 on the second rotating shaft 21 rotates inside the discharge port 5 and actively conveys the materials at the discharge port 5 downwards, preventing the concrete from clogging at the discharge port 5.

[0038] Compared with the related technologies, a mixing device for building concrete provided by the present utility model has the following beneficial effects:

[0039] A mixing device for building concrete provided by the present utility model uses the synchronous rotation of the spiral blade 16 and the stirring rod 13 driven by the first motor 9 to stir, which fully strengthens the mixing of the materials inside the building concrete mixing drum 1. At the same time, it also prevents the denser aggregate from sinking to the bottom of the building concrete mixing drum 1, making the aggregate distribution in the concrete uniform. In addition, the arranged discharging assembly drives the feeding spiral blade 22 to rotate through the second motor 17, actively conveys the materials at the discharging port 5 downward, provides an active conveying force, prevents the discharging port 5 from being blocked, and improves the practicability.

[0040] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A mixing device for building concrete, characterized in that: The invention comprises a building concrete mixing drum (1), wherein a feeding port (3) is arranged on the upper side of the building concrete mixing drum (1), a discharging port (5) is arranged on the lower side of the building concrete mixing drum (1), a transmission box (4) is fixedly mounted on the upper side of the building concrete mixing drum (1), a mixing assembly is arranged on the transmission box (4), and a discharging assembly is arranged on the lower side of the discharging port (5); The stirring assembly comprises a first motor (9), an output shaft (10) is fixedly mounted on the output end of the first motor (9), a central gear (11) is fixedly mounted on the bottom of the output shaft (10), a first stirring shaft (12) is fixedly mounted on the bottom of the central gear (11), a stirring rod (13) is mounted on the side wall of the first stirring shaft (12), four side gears (14) are meshed on the side of the central gear (11), a second stirring shaft (15) is fixedly mounted on the bottom of the side gear (14), and a spiral blade (16) is fixedly mounted on the outer side of the second stirring shaft (15); The discharge assembly comprises a second motor (17), a first rotating shaft (18) is fixedly mounted on the output end of the second motor (17), a first bevel gear (19) is fixedly mounted on the end of the first rotating shaft (18), a second bevel gear (20) is meshed on the first bevel gear (19), a second rotating shaft (21) is fixedly mounted on the second bevel gear (20), and a feeding sling (22) is fixedly mounted on the side wall of the second rotating shaft (21).

2. A mixing device for building concrete according to claim 1, characterized in that: A control switch (2) is installed on the front side of the building concrete mixing drum (1).

3. A mixing device for building concrete according to claim 1, characterized in that: A plurality of support columns are arranged at the bottom of the building concrete mixing drum (1).

4. A mixing device for building concrete according to claim 1, characterized in that: The output shaft (10) rotates and passes through the inside of the transmission box (4), the central gear (11) and the side gear (14) are both rotatably mounted on the bottom inside the transmission box (4), and the first stirring shaft (12) and the second stirring shaft (15) are both rotated and passed through the inside of the building concrete mixing drum (1).

5. A mixing device for building concrete according to claim 1, characterized in that: The stirring track of the stirring rod (13) is located inside the stirring track of the spiral blade (16).

6. A mixing device for building concrete according to claim 1, characterized in that: The spiral blades (16) adjacent to the second stirring shaft (15) are arranged in a spirally opposite direction.

7. A mixing device for building concrete according to claim 1, characterized in that: A cone cover (7) is provided at the bottom of the discharge port (5), and three connecting rods (6) are connected between the cone cover (7) and the discharge port (5). A mounting seat (8) is fixedly installed at the bottom of the building concrete mixing drum (1), the second motor (17) is fixedly installed on the side of the mounting seat (8), and the first rotating shaft (18) rotates through the mounting seat (8).

8. A mixing device for building concrete according to claim 1, characterized in that: The first bevel gear (19) and the second bevel gear (20) are both located on the inner side of the cone cover (7), and the first rotating shaft (18) and the second rotating shaft (21) are both rotated to pass through the inside of the cone cover (7), and the feed sprocket (22) is located on the inner side of the discharge port (5), and the feed sprocket (22) does not contact the inner wall of the discharge port (5).

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