CN203973755U - A kind of cement concrete twin-shaft mixer based on Current Control - Google Patents

Abstract

The utility model provides a cement concrete twin-shaft mixer based on current control. The motor is located on the left side of the mechanical body and is connected to the reducer; the torque power speed sensor is connected to the main shaft of the mechanical body on one side, and the other side is connected to the main shaft of the mechanical body. One side is connected with the reducer; the reducer is connected with the motor and torque power speed sensor respectively; the electric control box is used to control the speed of the motor and control the power switch; the mixing cylinder is used to realize the storage and stirring of materials; The blades are spirally distributed on the stirring shaft at an angle of 45°, and the stirring shaft is located in the mixing cylinder; the fixing device is used to fix the mixing cylinder during the stirring process; the unloading device makes the mixing well The mixture poured smoothly. Using the above scheme, the laboratory test of highway engineering provides a stable, efficient, and powerful tool for real-time data acquisition, which has very important guiding significance for improving the performance of fresh concrete and improving the quality of the project.

Description

A cement concrete twin-shaft mixer based on current control

technical field

The utility model belongs to the technical field of machinery and sensor detection, in particular to a cement concrete twin-horizontal shaft mixer based on current control.

Background technique

Mixing is an extremely important process in the concrete production process, because the design of the concrete mix ratio is to fill the gaps between the aggregates just according to the fine aggregate. Horizontal concrete mixer refers to a type of mixing equipment that places the mixing cylinder horizontally. It can be divided into single-shaft horizontal mixer and double-shaft horizontal mixer.

The rotation of the mixing shaft and the blade of the single horizontal shaft concrete mixer is to raise the aggregate to a certain height, and then make it fall freely to complete a mixing process. The single-horizontal shaft concrete mixer is suitable for building scientific research, testing centers, colleges and universities and concrete components, construction unit laboratories, can mix ordinary concrete and lightweight concrete, and can also be used to mix different materials in laboratories of other industries. The twin-shaft mixer has high working efficiency, large capacity, good wear resistance, reasonable structural design, and the most important thing is strong mixing capacity. It can make full use of convection, shearing and diffusion mechanisms in a short period of time to make the concrete mixture reach macro homogeneous.

However, the mixers currently on the market can only be controlled by adjusting the mixing time. The judgment of concrete mixing is generally based on experience, and there is no quantitative characterization of the mixing time. The data acquisition method of this mixing control method is not automatic and informatized.

Therefore, there are defects in the prior art and need to be improved.

Utility model content

The technical problem to be solved by the utility model is to provide a cement concrete twin-horizontal shaft mixer based on current control for the deficiencies of the prior art.

The technical scheme of the utility model is as follows:

A cement concrete twin-shaft mixer based on current control, including the mechanical body of the mixer, which also includes: an electric motor, located on the left side of the mechanical body and connected to the reducer, for passing through the frequency conversion in the motor and the electric control box The torque, power and speed sensor is located on the left side of the mechanical body, one side is connected to the main shaft of the mechanical body, and the other side is connected to the reducer, which is used to measure the torque, power and speed; the reducer is connected with the motor and the torque power speed sensor respectively, and is used to control the speed of the motor and change the longitudinal transmission of the motor to a horizontal transmission, thereby driving the horizontal stirring shaft to rotate; the electric control box is located on the left side of the mechanical body Side, used to control the speed of the motor and control the power switch; the transmission box is set on the left side of the mixing cylinder, used to evenly distribute the transmission force of the motor and reduce the speed transmitted by the motor; the frame is used to support The mechanical body of the mixer; the mixing cylinder, used to realize the storage and stirring of materials; the stirring blades, which are spirally distributed on the stirring shaft at an angle of 45°, and the stirring shaft is located in the mixing cylinder; the fixing device, Located on the right side of the mechanical body, it is used to fix the mixing cylinder during the stirring process to prevent the cylinder from rotating with the stirring shaft during the stirring process; the unloading device is located on the right side of the mechanical body and can drive the cylinder Swirl so that the blended mixture pours out smoothly.

The cement concrete twin-shaft mixer based on current control, wherein the electric control box includes a frequency converter and a power controller, the frequency converter is used to control the speed of the motor; the power controller is used to control the power switch, and at the same time Carry out overcurrent protection.

In the cement concrete twin-shaft mixer based on current control, the frame is welded by channel steel and steel plate to ensure strength and rigidity for supporting the mechanical body of the mixer.

In the cement concrete twin-shaft mixer based on current control, there are two mixing shafts, which are used to realize spiral mixing in the three-dimensional directions of front and back, left and right, and up and down.

The above-mentioned scheme provides a stable, efficient, and real-time data acquisition tool for highway engineering laboratory tests, which has very important guiding significance for speeding up the pace of highway construction in my country, improving the performance of fresh concrete, and improving project quality. At the same time, the real-time monitoring of the current during the mixing process realizes the intelligent management of fresh concrete.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.

Example 1

As shown in Figure 1, the utility model provides a cement concrete twin-shaft mixer based on current control. The mixer should be able to measure the torque and current during the mixing process, and judge the uniform mixing time of fresh concrete by the change of torque and current. .

The utility model installs the current collection and storage device in the mixer, and the current data collection and storage device is composed of two parts: a data collection instrument and a mutual induction coil module. The current in the stirring process is collected in real time through the current collection and storage device.

The cement concrete twin-shaft mixer of the present utility model includes a mechanical body of the mixer, wherein it also includes: a motor 1, which is located on the left side of the mechanical body and is connected with a reducer for passing through the motor and the frequency converter in the electric control box. Adjust; the torque power speed sensor 2 is located on the left side of the mechanical body, one side is connected with the main shaft of the mechanical body, and the other side is connected with the reducer for measuring the torque, power and speed; reducer 3 is connected with the motor and torque power speed sensor respectively, and is used to control the speed of the motor and change the longitudinal transmission of the motor to a horizontal transmission, thereby driving the horizontal stirring shaft to rotate; the electric control box 4 is located in the mechanical body The left side is used to control the speed of the motor and control the power switch; the transmission box 5 is set on the left side inside the mixing cylinder, and is used to evenly distribute the transmission force of the motor and decelerate the speed transmitted by the motor; the frame 6 , used to support the mechanical body of the mixer; the mixing cylinder 7 is used to realize the storage and stirring of materials; the mixing blade 8 is spirally distributed on the stirring shaft at an angle of 45°, and the stirring shaft is located in the mixing tank In the middle of the body; the fixing device 9 is located on the right side of the mechanical body, which is used to fix the mixing cylinder during the stirring process and prevent the cylinder from rotating with the stirring shaft during the stirring process; the unloading device 10 is located on the mechanical body The right side of the cylinder can drive the cylinder to rotate, so that the mixed material can be poured out smoothly.

The cement concrete twin-shaft mixer based on current control, wherein the electric control box includes a frequency converter and a power controller, the frequency converter is used to control the speed of the motor; the power controller is used to control the power switch, and at the same time Carry out overcurrent protection.

In the cement concrete twin-shaft mixer based on current control, the frame is welded by channel steel and steel plate to ensure strength and rigidity for supporting the mechanical body of the mixer.

In the cement concrete twin-shaft mixer based on current control, there are two mixing shafts, which are used to realize spiral mixing in the three-dimensional directions of front and back, left and right, and up and down.

Furthermore, the electric motor 1 is used for regulation through the electric motor and the frequency converter in the electric control box, and the speed range is 0r/min-60r/min.

Furthermore, the torque power speed sensor 2 is used to measure the torque, power and speed during the stirring process, the torque range is 0.1N.m-300N.m, and the accuracy can reach 0.1%.

Furthermore, the speed reducer 3 plays two roles, one is to control the speed of the motor, so that the speed of the stirring process is controlled within an appropriate range; the other is to change the direction of transmission, so that the longitudinal transmission of the motor Change to horizontal transmission, thereby driving the horizontal stirring shaft to rotate.

Furthermore, the electric control box 4 includes a frequency converter and a power controller. The frequency converter is used to control the speed of the motor, and the frequency is variable from 0HZ to 50HZ. Prevent the adverse effect on the motor caused by excessive current caused by machine jams and other reasons during the stirring process.

Furthermore, the transmission box 5, on the one hand, evenly distributes the transmission force of the motor on the two stirring shafts, and on the other hand, decelerates the speed transmitted by the motor again according to the reduction ratio of 10:6, so as to better control the stirring process in the speed.

Furthermore, the frame 6 is the supporting part of the whole equipment (including the mechanical body), which is welded by channel steel and steel plate, and has sufficient strength and rigidity for supporting the whole equipment.

Furthermore, the mixing cylinder 7 is the core part for realizing storage and stirring of materials, and the maximum capacity can reach 80 liters.

Furthermore, the stirring blades 8 are spirally distributed on the stirring shaft at an angle of 45°, and the spiral stirring in the front, rear, left and right, and up and down three-dimensional directions can be realized during the biaxial stirring process. related structures.

Furthermore, the fixing device 9 is used for fixing the mixing cylinder during the stirring process, preventing the cylinder from rotating with the stirring shaft during the stirring process, and ensuring the normal progress of the stirring process.

Furthermore, the unloading device 10 can drive the cylinder to rotate, so that the mixed material can be poured out smoothly, and the sundries in the mixing cylinder can be cleaned conveniently.

The above-mentioned scheme provides a stable, efficient, and real-time data acquisition tool for highway engineering laboratory tests, which has very important guiding significance for speeding up the pace of highway construction in my country, improving the performance of fresh concrete, and improving project quality. At the same time, the real-time monitoring of the current during the mixing process realizes the intelligent management of fresh concrete.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present utility model.

Claims (4)

1. A cement concrete twin-shaft mixer based on current control, comprising a mechanical body of the mixer, and further comprising: an electric motor, which is located on the left side of the mechanical body and is connected to a reducer for passing the motor and electronic control The frequency converter in the box is used for adjustment; the torque power speed sensor is located on the left side of the mechanical body, one side is connected with the main shaft of the mechanical body, and the other side is connected with the reducer, which is used to measure the stirring process. Torque, power and rotational speed; the reducer is connected with the motor and the torque power rotational speed sensor respectively, and is used to control the rotational speed of the motor and change the longitudinal transmission of the motor to a transverse transmission, thus driving the horizontal stirring shaft to rotate; the electric control box is located in the The left side of the mechanical body is used to control the speed of the motor and control the power switch; the transmission box is set on the left side inside the mixing cylinder, which is used to evenly distribute the transmission force of the motor and reduce the speed transmitted by the motor; the frame , used to support the mechanical body of the mixer; the mixing cylinder is used to realize the storage and stirring of materials; the stirring blade is spirally distributed on the stirring shaft at an angle of 45°, and the stirring shaft is located in the mixing cylinder The fixing device, located on the right side of the mechanical body, is used to fix the mixing cylinder during the stirring process, so as to prevent the cylinder from rotating with the stirring shaft during the stirring process; the unloading device is located on the right side of the mechanical body, It can drive the cylinder body to rotate, so that the mixed material can be poured out smoothly. 2. The cement concrete twin-shaft mixer based on current control as claimed in claim 1, wherein the electric control box includes a frequency converter and a power controller, and the frequency converter is used to control the rotating speed of the motor; the power supply The controller is used to control the power switch and perform over-current protection at the same time. 3. The cement concrete twin-shaft mixer based on current control as claimed in claim 1, wherein the frame is welded by channel steel and steel plate to ensure strength and rigidity for supporting the mixer ontology. 4. The cement concrete twin-shaft mixer based on current control as claimed in claim 1, wherein there are two stirring shafts for realizing spiral mixing in front, back, left and right, and up and down three-dimensional directions.