CN203045977U - High-frequency speed regulation stirring machine - Google Patents

Abstract

The utility model discloses a high-frequency speed regulation stirring machine comprising a stirring drum, a stirring shaft, a blade, a motor reduction gearbox, a support frame and a vibrating structure, wherein the vibrating structure is composed of a vibrating rod, a frequency converter, a conductive slip ring and a connecting wire. The vibrating structure can generate vibration at high frequency of 12000times/minute and can be used for directly transferring high-frequency vibration to materials. The working principle of the high-frequency speed regulation stirring machine is as follows: the vibrating structure is additionally arranged on the basis of conventional forced stirring equipment, and high-frequency vibration is provided for the materials while the materials are stirred, so that the materials are rapidly liquefied, the viscosity is reduced, the liquefying efficiency is greatly increased, and the liquefying effect is greatly improved; and the air in a sizing agent is exhausted, so that the compactness of the sizing agent is increased. By using the high-frequency speed regulation stirring machine, the problem generated in the process that high-viscosity and fiber-contained materials are blended by the stirring machine is solved thoroughly.

Description

A high-frequency speed-regulating mixer

technical field

The utility model relates to a mixer, in particular to a high-frequency speed-regulating mixer, which belongs to the technical field of mixers.

technical background

Concrete mixer is a machine that mixes materials such as sand, stone, cement and water with a certain mix ratio into uniform concrete that meets quality requirements. It usually consists of a motor, a support frame, a mixing drum, a mixing shaft, and blades. As a kind of engineering machinery, concrete mixer is widely used in various projects, which greatly improves the construction efficiency. According to different mixing principles, concrete mixers are mainly divided into two categories: self-falling type and forced type. The self-falling mixer mainly uses the diffusion mechanism to make the materials interpenetrate, stir and mix under the action of gravity to achieve uniform mixing. The inner wall of the mixer barrel is welded with arc-shaped blades. When the mixing barrel rotates around the horizontal axis, the blades continuously lift the materials to a certain height, and then fall freely to mix with each other. The self-falling mixer has a simple structure and is generally used to mix plastic concrete. The forced mixer is mainly based on the shear mechanism to force the materials to slide along the sliding surface to achieve uniform mixing. There are blades in the mixer that rotate with the mixing shaft. Compulsory mixers have a good mixing effect on semi-dry hard concrete, dry hard concrete and lightweight concrete, but they consume a lot of energy and cost.

For Portland concrete, the thinner the material, the lower the strength, and the lower the ability of the hardened material to resist natural erosion. This is the obvious reason why concrete projects are not durable in recent years. Of course, increasing the size of the concrete section can also solve the problem by denuding layer by layer, but it will consume a lot of resources, and at the same time, the size of the structural section is large and the visual effect is poor. In order to solve the above practical engineering problems, the strength of concrete is getting higher and higher. In order to obtain high-strength concrete, the water-cement ratio must be reduced, and the amount of water added to the material must be reduced. In addition, various fibers are usually added to the concrete to improve the performance of the concrete. At this time, the concrete paste will become more viscous and difficult to mix evenly.

When the mixing material is particularly viscous, the solution is to heat the material to make the material thinner and stir. This method is only suitable for organic material mixing. For inorganic materials, heating can only make the materials more viscous, so forced stirring is often used to achieve this by prolonging the stirring time and increasing the speed of the stirring blades. However, when the stirring time is prolonged, the dispersion effect of the material is not good; and when the rotating speed of the stirring blade is increased, although the dispersion effect is slightly improved, for materials with fibers, the fibers are easy to agglomerate and wrap around the stirring blade, which will cause wear and tear on the equipment. Speed up, and the risk of operation increases. In short, none of the above stirring methods can efficiently mix the materials well.

Fully mix viscous and fibrous materials evenly, which requires extremely high equipment. In recent years, there has been no great breakthrough in the principle of concrete manufacturing equipment.

Utility model content

The purpose of the utility model is to provide a high-frequency speed-regulating mixer for the deficiencies of the prior art, so that high-viscosity materials, fiber-added materials and the mixture of the two can be mixed efficiently.

The high-frequency speed-regulating mixer proposed by the utility model includes a mixing drum (6), a stirring shaft (2), blades (4), a motor reduction box (10), a support frame (9) and a pulley (8), and the mixing drum (6) Located on the support frame (9), the stirring shaft (2) is located at the center of the mixing drum (6), and the three blades (4) are respectively vertically fixed on the stirring shaft, and the angle between the three blades in the horizontal direction is 120°. The two blades are distributed at different positions in the vertical direction on the stirring shaft (preferably evenly distributed); the pulley (8) is located outside the bottom end of the stirring drum (6), one end is fixed to the stirring shaft (2), and the other end of the pulley (8) is connected to the stirring shaft (2). The motor reducer (10) is connected, and the motor reducer (10) controls the stirring shaft (2) and the blade to rotate together through the pulley (8). It is characterized in that it also includes a vibration structure. The vibration structure consists of a vibrating rod (3), Composed of a frequency converter (13), a connector (11) and a connecting wire (12), the vibrating rod (3) is parallel to the stirring shaft (2), and there is a vibrating rod (3) between each two adjacent blades, The two ends of the vibrating rod (3) are fixedly connected to the stirring shaft (2) through connecting rods, the connecting rod is set on the vibrating rod (3) through a ring, and the vibrating rod (3) is connected to the frequency converter ( 13) Connect to realize the vibration of the vibrator.

Even if the vibrating rod (3) is tightly fixed with the stirring shaft (2), after the vibrating rod (3) is connected with the frequency converter, it will still realize high-frequency vibration.

In order to prevent the wires (12) from being entangled with each other when the blades (4) rotate, a conductive slip ring (1) is also included, and the frequency converter (13) generates high frequency through the connector (11), the connecting wire (12) and the conductive slip ring (1) is transmitted to the vibrator (3).

A discharge port (7) is also provided on the mixing drum (6).

Every two blades are fixedly connected together by a stirring rod (5) to further strengthen the fixed blades.

The motor reducer is connected with the belt wheel to control the rotation of the stirring shaft, the rotation speed is 10-80 rpm, and it can be infinitely adjustable. The vibration frequency of the vibrating rod in the vibrating structure can reach 12,000 times per minute. The vibrating rod can directly transmit the high-frequency frequency to the material, which effectively improves the vibration effect.

The principle of the high-frequency speed-adjusting mixer of the utility model is: on the basis of conventional forced stirring equipment, a vibrating structure is added to give the material a high-frequency vibration while stirring the material, so that the material can be liquefied rapidly, the viscosity is reduced, and the liquefied Efficiency and effectiveness have been greatly improved. High-frequency mixing can also discharge the air in the slurry, laying a homogeneous foundation for the compaction of the slurry.

The high-frequency speed-regulating mixer of the utility model can produce good mixing effect. It is suitable for stirring inorganic materials, high-viscosity materials and materials with any fiber (organic fiber, inorganic fiber, metal fiber).

Description of drawings

Fig. 1 is the structural representation of the high-frequency speed-regulating mixer of the present utility model;

The top view of the equipment in the mixing drum of Fig. 2;

Among them, 1 conductive slip ring, 2 stirring shaft, 3 vibrating rod, 4 blades, 5 stirring rod, 6 stirring drum, 7 discharge port, 8 pulley, 9 support frame, 10 motor reducer, 11 connector, 12 connecting wire , 13 inverters.

Detailed ways

Refer to Figure 1 for the structural diagram of the high-frequency speed-regulating mixer, and Figure 2 for the top view of the equipment in the mixing drum. The high-frequency speed-regulating mixer of the utility model mainly includes a mixing drum 6, a stirring shaft 2, blades 4, a motor reduction box 10, a support frame 9 and a vibration structure. The mixing drum 6 is provided with a discharge port 7 . There are three stirring blades 4 evenly distributed from top to bottom on the stirring shaft 2, and each two blades are fixedly connected together by a stirring rod, and the motor reduction box 10 drives the pulley 8 to rotate, and the other end of the pulley 8 is connected to the stirring The shafts 2 are connected, so that the stirring shaft 2 rotates under the drive of the motor reduction box 10, and the blades 4 on the stirring shaft 2 also rotate accordingly, so that the materials can be stirred. The vibrating structure is composed of vibrating rod 3 , conductive slip ring 1 , connecting wire 12 , connecting head 11 and frequency converter 13 . The upper and lower ends of each vibrating rod 3 are connected and fixed with the stirring shaft 2 through two rods. When the stirring shaft 2 rotates, the vibrating rod 3 also rotates thereupon. A conductive slip ring 1 is provided on the top of the stirring shaft 2. In order to prevent the wires 12 from being entangled with each other when the stirring shaft 4 rotates, the frequency converter 13 generates high frequency and transmits it to the vibrating rod through the connector 11, the connecting wire 12 and the conductive slip ring 1. 3. The vibrating rod 3 performs high-frequency vibration while rotating with the stirring shaft 2, and directly transmits the high-frequency vibration to the material, so that the material is quickly liquefied, the viscosity is reduced, the stirring effect is improved, and the material can be mixed quickly.

Put the materials into the mixing drum 6 of the mixer, turn on the motor reduction box 10, and the motor reduction box 10 drives the stirring shaft 2 to rotate, so that the materials are stirred. Insert the connector 11 into the frequency converter 13, turn on the frequency converter 13, drive the vibrator 3 to perform high-frequency vibration, and transmit the high-frequency vibration directly to the material. At this time, the material is vibrated at high frequency while being stirred. When stirring, the motor reducer and the frequency converter can be turned on at the same time, or they can be turned on successively. After stirring evenly, turn off the motor reducer and frequency converter. Open the discharge port and discharge the material.

The protection scope of the utility model relates to all the variations described above.

Claims (5)

1. A high-frequency speed-regulating mixer, including a mixing drum (6), a stirring shaft (2), blades (4), a motor reducer (10), a support frame (9) and a pulley (8), and the mixing drum ( 6) Located on the support frame (9), the stirring shaft (2) is located at the center of the mixing drum (6), and the three blades (4) are respectively vertically fixed on the stirring shaft, the angle between the three blades in the horizontal direction is 120°, and the three The blades are distributed at different positions in the vertical direction on the stirring shaft; the pulley (8) is located outside the bottom end of the stirring drum (6), one end is fixed to the stirring shaft (2), and the other end of the pulley (8) is connected to the motor reducer (10) connected, the stirring shaft (2) and the blades are controlled to rotate together by the motor reduction box (10) through the pulley (8), and it is characterized in that it also includes a vibrating structure, which consists of a vibrating rod (3), a frequency converter (13), The connecting head (11) and the connecting wire (12) are composed, the vibrating rod (3) is parallel to the stirring shaft (2), and there is a vibrating rod (3) between every two adjacent blades, and the vibrating rod (3) The two ends are respectively fixedly connected to the stirring shaft (2) through connecting rods, and the connecting rod is sleeved on the vibrating rod (3) through a ring, and the vibrating rod (3) is connected to the frequency converter (13) through connecting wires and connectors to realize vibration Great vibration. 2. A high-frequency speed-adjustable mixer according to claim 1, characterized in that it also includes a conductive slip ring (1), and the frequency converter (13) generates high frequency through the connector (11), connecting wires (12) and conductive The slip ring (1) transmits to the vibrating rod (3). the 3. A high-frequency speed-regulating mixer according to claim 1, characterized in that, a discharge port (7) is also provided on the mixing drum (6). the 4. A high-frequency speed-adjusting mixer according to claim 1, characterized in that every two blades are fixedly connected together by a stirring rod (5) to further strengthen the fixed blades. the 5. A high-frequency speed-adjusting mixer as claimed in claim 1, characterized in that, the motor gear box is connected with a pulley to control the rotation of the stirring shaft, the rotating speed is 10 to 80 rpm, and the vibration frequency of the vibrating rod in the vibrating structure reaches 12,000 times /minute. the