Quantitative mixing equipment for concrete admixture

Abstract

The utility model provides quantitative mixing equipment for concrete admixtures, belongs to the technical field of quantitative mixing equipment for concrete admixtures used for producing precast concrete, and aims to solve the problem that the admixtures and concrete are not fully mixed when the admixtures are stirred to the tank wall of a stirring tank. The concrete admixture feeding device comprises a high-strength stirring tank, a lifting cover, a discharging pipe, a servo motor, a feeding mechanism and a comprehensive stirring mechanism. The two groups of lifting covers are hinged to the two sides of the upper end surface of the high-strength stirring tank; the discharging pipe is arranged below the high-strength stirring tank; the servo motor is arranged above the high-strength stirring tank; the feeding mechanism is arranged in the high-strength stirring tank; the comprehensive stirring mechanism is arranged in the high-strength stirring tank. The high-strength stirring tank has the advantages that the admixture can be uniformly fed, and the problem that the use effect of the admixture is affected due to the fact that concrete on the tank wall of the high-strength stirring tank cannot be well stirred is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete admixture quantitative mixing equipment used in producing concrete prefabricated parts, and more specifically, particularly relates to concrete admixture quantitative mixing equipment. Background Art

[0002] When producing precast concrete parts, it is necessary to add admixtures for improving the performance of concrete during the mixing process to improve the strength of concrete and improve the performance of concrete. Most of the existing quantitative mixing equipment for concrete admixtures includes a mixing tank, a diaphragm pump, a storage box, a discharge port and a quantitative component. When in use, the staff puts a quantitative admixture into the storage box, starts the diaphragm pump and drives the quantitative component to continuously and quantitatively deliver the admixture in the storage box into the mixing tank at a fixed point, thereby effectively improving the accuracy of the amount of admixture added. At the same time, through stirring in the mixing tank, the admixture and concrete can be evenly mixed, thereby improving the use effect of the admixture.

[0003] The existing application number is: CN202223395743.2. The utility model discloses a metering device, including a base, a frame is fixedly installed on the top of the base, a tank body is fixedly installed on the top of the frame, a controller is provided in the middle of the front of the tank body, a telescopic cylinder is fixedly installed on the top rear end of the base, a metering feeding mechanism is fixedly installed on the top of the telescopic cylinder, and a stirring mechanism is provided at the bottom of the metering feeding mechanism. The utility model adopts the above structure. With the start-up of the equipment, the controller turns on the solenoid valve, and the admixture inside the material box is discharged into the inside of the feed hopper through the discharge pipe as the control valve is opened. At this time, the weighing sensor calculates the value, and the weight inside the material box decreases. When the discharged admixture reaches the set value, the controller controls the solenoid valve to close, thereby realizing automatic quantitative addition of admixtures, so that the addition accuracy of admixtures is high, thereby ensuring the quality of each mixing of concrete.

[0004] Based on the above, when quantitatively mixing concrete admixtures, the diaphragm pump drives the quantitative component to continuously and quantitatively add the admixture in the storage box into the mixing tank and stir it. Because the fluidity of concrete is low, the stirring speed in the mixing tank will also be slow. When the admixture is added into the mixing tank at a fixed point and in a quantitative manner, although the mixing tank will continue to be stirred, the stirring speed in the mixing tank is slow and the stirring blades in the mixing tank cannot stir the concrete at the tank wall. Therefore, the fluid velocity near the tank wall of the mixing tank is very low. When the admixture is stirred to the tank wall of the mixing tank, there is a problem of insufficient mixing of the admixture and the concrete, which affects the use effect of the concrete admixture. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a concrete admixture quantitative mixing device to solve the existing problem that when the admixture is stirred to the tank wall of the mixing tank, the admixture and concrete are not mixed sufficiently, which affects the use effect of the concrete admixture.

[0006] The purpose and function of the concrete admixture quantitative mixing device of the utility model are achieved by the following specific technical means:

[0007] A quantitative mixing device for concrete admixtures, comprising a high-strength mixing tank, a lifting cover, a discharge pipe, a servo motor, a cross plate, a pneumatic diaphragm pump, a high-precision gear ring, a delivery mechanism and a comprehensive mixing mechanism;

[0008] A chute is provided on the upper part of the high-strength mixing tank;

[0009] There are two groups of flip covers, which are hinged on both sides of the upper end surface of the high-strength mixing tank;

[0010] The discharge pipe is fixedly connected to the bottom of the high-strength mixing tank, and the concrete in the high-strength mixing tank can be discharged through the discharge pipe;

[0011] The servo motor is fixedly connected above the high-strength stirring tank;

[0012] The cross-turn plate is rotatably connected to the upper part of the high-strength mixing tank, and the cross-turn plate is provided with three groups of through holes;

[0013] There are two groups of pneumatic diaphragm pumps, which are fixedly connected to the end surface of the cross rotating plate;

[0014] The high-precision gear ring is fixedly connected to the upper part of the high-strength mixing tank;

[0015] The delivery mechanism is arranged inside the high-intensity stirring tank;

[0016] The comprehensive stirring mechanism is arranged inside the high-intensity stirring tank.

[0017] Further, the comprehensive stirring mechanism includes a first transmission shaft and a sun gear;

[0018] The first transmission shaft is rotatably connected to the inside of the high-strength stirring tank, the first transmission shaft is coaxially fixedly connected to the motor shaft of the servo motor, and the first transmission shaft is arranged on the inner periphery of a group of through holes of the cross rotating plate;

[0019] The sun gear is coaxially fixedly connected to the upper outer peripheral surface of the first transmission shaft.

[0020] Furthermore, the comprehensive stirring mechanism also includes a central stirring blade and a second transmission shaft;

[0021] The central stirring blade is coaxially fixedly connected to the outer peripheral surface below the first transmission shaft, and the central stirring blade plays the role of stirring concrete;

[0022] There are two groups of the second transmission shafts, which are rotatably connected to the inside of the high-strength mixing tank respectively, and are respectively arranged on the inner peripheries of the two groups of through holes of the cross rotating plate.

[0023] Furthermore, the comprehensive stirring mechanism also includes a planetary gear;

[0024] There are two groups of planetary gears, which are coaxially fixedly connected to the upper outer peripheral surfaces of the two groups of second transmission shafts, and the two groups of planetary gears are respectively meshed with the sun gear and the high-precision ring gear.

[0025] Furthermore, the comprehensive stirring mechanism also includes a double-paddle asynchronous stirring blade;

[0026] The double-paddle asynchronous stirring blades are arranged below the two sets of second transmission shafts, and the double-paddle asynchronous stirring blades can well stir the concrete at the tank wall.

[0027] Furthermore, the delivery mechanism includes a small storage box and a delivery tube;

[0028] There are two groups of small material storage boxes, which are respectively fixedly connected above the cross rotating plate, and are respectively fixedly connected to the feed ports of the two groups of pneumatic diaphragm pumps;

[0029] There are two groups of delivery pipes, which are respectively fixedly connected under the cross rotating plate, and are respectively fixedly connected to the discharge ports of two groups of pneumatic diaphragm pumps.

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] The utility model adopts the arrangement of a comprehensive stirring mechanism. When the concrete in the high-intensity stirring tank is stirred, the servo motor rotates and drives the double-paddle asynchronous stirring blades and the central stirring blade to rotate through the transmission cooperation of the first transmission shaft, the sun gear, the two sets of planetary gears and the two sets of second transmission shafts, so that the concrete in the central area inside the high-intensity stirring tank and at the tank wall can be well stirred.

[0032] The utility model is provided with a dispensing mechanism. When dispensing admixtures, the admixtures in two groups of small storage boxes are pumped out by two groups of pneumatic diaphragm pumps and are dispensed into the high-strength mixing tank through two groups of dispensing pipes. During the dispensing process, the rotation of the cross rotating plate enables the admixtures to be rotated and dispensed into the high-strength mixing tank, thereby achieving the effect of uniform dispensing of the admixtures and enhancing the mixing of concrete and the admixtures.

[0033] The utility model provides a central stirring blade, and the rotation of the central stirring blade can improve the convection mixing effect of the fluid in the central area inside the high-intensity stirring tank, thereby improving the mixing efficiency.

[0034] The utility model can evenly add the admixture, thereby enhancing the mixing of the concrete and the admixture, and avoiding the problem that the concrete at the wall of the high-strength mixing tank cannot be well stirred and affects the use effect of the admixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0036] Figure 2 It is a schematic diagram of the high-precision gear ring structure of the utility model.

[0037] Figure 3 It is a schematic diagram of the overall stirring mechanism structure of the utility model.

[0038] Figure 4 It is a schematic diagram of the structure of the delivery mechanism of the utility model.

[0039] Figure 5 It is a schematic diagram of the planetary gear structure of the utility model.

[0040] Figure 6 It is a schematic diagram of the structure of the cross rotating plate of the utility model.

[0041] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0042] 1. High-strength mixing tank; 101. Lift cover; 102. Discharge pipe; 2. Servo motor; 3. First transmission shaft; 301. Central stirring blade; 4. Sun gear; 5. Planetary gear; 6. Second transmission shaft; 601. Double-blade asynchronous stirring blade; 7. Cross turn plate; 8. Small storage box; 9. Pneumatic diaphragm pump; 10. Dispensing pipe; 11. High-precision gear ring. DETAILED DESCRIPTION

[0043] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0044] Embodiment 1:

[0045] As attached Figure 1 To Attachment Figure 3 As shown:

[0046] The utility model provides a quantitative mixing device for concrete admixtures, comprising a high-strength mixing tank 1, a lifting cover 101, a discharge pipe 102, a servo motor 2, a cross plate 7, a pneumatic diaphragm pump 9, a high-precision gear ring 11 and a comprehensive mixing mechanism;

[0047] A chute is provided on the upper part of the high-strength mixing tank 1;

[0048] There are two sets of flip covers 101, which are hinged on both sides of the upper end surface of the high-strength mixing tank 1. By opening the two sets of flip covers 101, concrete and admixtures can be added into the high-strength mixing tank 1.

[0049] The discharge pipe 102 is fixedly connected to the bottom of the high-strength mixing tank 1, and the concrete in the high-strength mixing tank 1 can be discharged through the discharge pipe 102;

[0050] The servo motor 2 is fixedly connected above the high-strength stirring tank 1;

[0051] The cross plate 7 is rotatably connected to the upper part of the high-strength mixing tank 1, and the cross plate 7 is provided with three groups of through holes;

[0052] There are two groups of pneumatic diaphragm pumps 9, and the two groups of pneumatic diaphragm pumps 9 are fixedly connected to the upper end surface of the cross rotating plate 7;

[0053] The high-precision gear ring 11 is fixedly connected to the upper part of the high-strength mixing tank 1;

[0054] The comprehensive stirring mechanism is arranged inside the high-intensity stirring tank 1 .

[0055] Wherein, the comprehensive stirring mechanism includes a first transmission shaft 3 and a sun gear 4;

[0056] The first transmission shaft 3 is rotatably connected to the inside of the high-strength stirring tank 1, the first transmission shaft 3 is coaxially fixedly connected to the motor shaft of the servo motor 2, and the first transmission shaft 3 is arranged on the inner periphery of a group of through holes of the cross rotating plate 7;

[0057] The sun gear 4 is coaxially fixedly connected to the upper outer peripheral surface of the first transmission shaft 3 .

[0058] The comprehensive stirring mechanism further includes a central stirring blade 301 and a second transmission shaft 6;

[0059] The central stirring blade 301 is coaxially fixedly connected to the outer peripheral surface below the first transmission shaft 3, and the central stirring blade 301 plays the role of stirring concrete;

[0060] There are two groups of second transmission shafts 6 , which are rotatably connected to the inside of the high-strength stirring tank 1 , and are respectively arranged on the inner peripheries of the two groups of through holes of the cross rotating plate 7 .

[0061] Wherein, the comprehensive stirring mechanism also includes a planetary gear 5;

[0062] There are two groups of planetary gears 5 , which are coaxially fixedly connected to the upper outer circumferential surfaces of the two groups of second transmission shafts 6 , and the two groups of planetary gears 5 are meshed with the sun gear 4 and the high-precision ring gear 11 , respectively.

[0063] The comprehensive stirring mechanism further includes a double-paddle asynchronous stirring blade 601;

[0064] The double-paddle asynchronous stirring blades 601 are arranged below the two sets of second transmission shafts 6, and the double-paddle asynchronous stirring blades 601 can well stir the concrete at the tank wall.

[0065] The specific usage and function of the first embodiment are as follows:

[0066] When the concrete in the high-intensity mixing tank 1 is stirred, the servo motor 2 is started, and the rotation of the servo motor 2 drives the first transmission shaft 3 to rotate, and the rotation of the first transmission shaft 3 drives the sun gear 4 to rotate, and the rotation of the sun gear 4 causes the two sets of planetary gears 5 to rotate and rotate around the inner circumference of the high-precision gear ring 11, and the first transmission shaft 3 will also drive the central stirring blade 301 to rotate, and the rotation of the two sets of planetary gears 5 will drive the double-paddle asynchronous stirring blade 601 to rotate through the two sets of second transmission shafts 6, and the double-paddle asynchronous stirring blade 601 can stir the concrete at the tank wall of the high-intensity mixing tank 1 well, and the rotation of the central stirring blade 301 can improve the fluid convection mixing effect in the central area inside the high-intensity mixing tank 1, reduce the mixing energy consumption per unit volume, and help to suppress the liquid level depression caused by the influence of centrifugal force during the stirring process, thereby improving the mixing efficiency.

[0067] Embodiment 2:

[0068] Based on the first embodiment, Figures 1 to 6 As shown, it also includes a delivery mechanism, which is arranged inside the high-intensity stirring tank 1;

[0069] The delivery mechanism includes a small material storage box 8 and a delivery tube 10;

[0070] There are two groups of small material storage boxes 8, which are respectively fixedly connected above the cross rotating plate 7, and the two groups of small material storage boxes 8 are respectively fixedly connected to the feed ports of two groups of pneumatic diaphragm pumps 9;

[0071] There are two groups of delivery pipes 10 , which are respectively fixedly connected below the cross rotating plate 7 , and are respectively fixedly connected to the discharge ports of the two groups of pneumatic diaphragm pumps 9 .

[0072] The specific usage and function of the second embodiment are as follows:

[0073] During use, the rotation of the sun gear 4 causes the two sets of planetary gears 5 to rotate and rotate around the inner circumference of the high-precision gear ring 11. The two sets of planetary gears 5 rotate around the inner circumference of the high-precision gear ring 11, and drive the cross-turn plate 7 to rotate through the two sets of second transmission shafts 6. When adding admixtures, the rotation of the sun gear 4 causes the two sets of planetary gears 5 to rotate and rotate around the inner circumference of the high-precision gear ring 11. The admixtures in the two sets of small storage boxes 8 are extracted by two sets of pneumatic diaphragm pumps 9 and are added to the high-strength mixing tank 1 through two sets of delivery pipes 10. During the delivery process, the rotation of the cross-turn plate 7 will cause the two sets of small storage boxes 8, the two sets of pneumatic diaphragm pumps 9 and the two sets of delivery pipes 10 to rotate synchronously. Therefore, when the admixture is added to the high-strength mixing tank 1 through the two sets of delivery pipes 10, it is rotated and added, avoiding the addition of admixtures at a single location, and can evenly add admixtures. In the case of low concrete fluidity, even addition of admixtures can greatly enhance the mixing of concrete and admixtures, thereby improving the use effect of the admixtures.

Claims

1. A quantitative mixing device for concrete admixtures, comprising a high-strength mixing tank (1), a lift cover (101), a discharge pipe (102), a servo motor (2), a cross plate (7), a pneumatic diaphragm pump (9), a high-precision gear ring (11), a feeding mechanism and a comprehensive mixing mechanism; the lift cover (101) has two groups, and the two groups of lift covers (101) are hinged on both sides of the upper end surface of the high-strength mixing tank (1); the discharge pipe (102) is fixedly installed below the high-strength mixing tank (1); and the characteristics are: The servo motor (2) is fixedly mounted above the high-intensity stirring tank (1); the cross-turn plate (7) is rotatably connected to the upper part of the high-intensity stirring tank (1), and the cross-turn plate (7) is provided with three groups of through holes; the feeding mechanism is arranged inside the high-intensity stirring tank (1); the comprehensive stirring mechanism is arranged inside the high-intensity stirring tank (1); there are two groups of pneumatic diaphragm pumps (9), and the two groups of pneumatic diaphragm pumps (9) are fixedly mounted on the upper end surface of the cross-turn plate (7), and the two groups of pneumatic diaphragm pumps (9) are provided with a group of feed ports and a group of discharge ports; the high-precision gear ring (11) is fixedly mounted above the inner part of the high-intensity stirring tank (1).

2. A concrete admixture quantitative mixing device as claimed in claim 1, characterized in that: The comprehensive stirring mechanism comprises a first transmission shaft (3) and a sun gear (4); the first transmission shaft (3) is rotatably mounted inside the high-intensity stirring tank (1), and the first transmission shaft (3) is coaxially fixedly connected to the motor shaft of the servo motor (2); the sun gear (4) is coaxially fixedly mounted on the outer peripheral surface above the first transmission shaft (3).

3. A concrete admixture quantitative mixing device as claimed in claim 2, characterized in that: The comprehensive stirring mechanism further comprises a central stirring blade (301) and a second transmission shaft (6); the central stirring blade (301) is coaxially fixedly mounted on the outer peripheral surface below the first transmission shaft (3); there are two groups of the second transmission shafts (6), the two groups of the second transmission shafts (6) are respectively rotatably mounted inside the high-strength stirring tank (1), and the two groups of the second transmission shafts (6) are respectively arranged on the inner peripheries of the two groups of through holes of the cross rotating plate (7).

4. A concrete admixture quantitative mixing device as claimed in claim 2, characterized in that: The comprehensive stirring mechanism further comprises planetary gears (5); there are two sets of planetary gears (5), the two sets of planetary gears (5) are coaxially fixedly mounted on the outer peripheral surfaces above the two sets of second transmission shafts (6), the two sets of planetary gears (5) are respectively meshed with the sun gear (4), and the two sets of planetary gears (5) are respectively meshed with the high-precision ring gear (11).

5. A concrete admixture quantitative mixing device as claimed in claim 2, characterized in that: The comprehensive stirring mechanism further comprises a double-paddle asynchronous stirring blade (601); the double-paddle asynchronous stirring blade (601) is arranged below the two sets of second transmission shafts (6).

6. A concrete admixture quantitative mixing device as claimed in claim 1, characterized in that: The dispensing mechanism comprises a small material storage box (8) and a dispensing tube (10); there are two groups of small material storage boxes (8), the two groups of small material storage boxes (8) are respectively fixedly installed above the cross rotating plate (7), and the two groups of small material storage boxes (8) are respectively fixedly connected to the feed ports of two groups of pneumatic diaphragm pumps (9); there are two groups of dispensing tubes (10), the two groups of dispensing tubes (10) are respectively fixedly installed below the cross rotating plate (7), and the two groups of dispensing tubes (10) are respectively fixedly connected to the discharge ports of the two groups of pneumatic diaphragm pumps (9).

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