CN211768354U - Screw conveyer with premixing function - Google Patents

Abstract

A screw conveyor with pre-mixing function includes a geared motor, a transmission mechanism, a drum with a spiral blade on the inner wall, and an idler supporting the drum. The inner wall of the drum is connected with a scraper that is inclined toward the helical direction of the helical blade. With the movement of the spiral blade, the scraper can carry the granular materials of different particle sizes to the top of the drum, and then throw them down, which can fully mix the granular materials of different particle sizes.

Description

A screw conveyor with premixing function

technical field

The utility model belongs to the technical field of concrete, in particular to a screw conveyor with a premixing function.

Background technique

In the concrete mixing process, there are many types of materials with different properties (powder, particles, liquid, etc.), and there are many types of powder materials (cement, more than two kinds of admixtures) and the amount of mixing is large, and the particles Due to factors such as the difference in particle size of similar materials (coarse and fine aggregates), the existing stirring device is limited by the structural design, the uniformity of stirring is not good, and it is difficult to form different types of materials (coarse, fine aggregate and powder) Homogeneous, thus affecting the construction and performance of concrete, resulting in the long-term quality of the project. Before the material is put into the mixer, in order to achieve a good mixing effect, it is necessary to fully mix the granular materials of different particle sizes. However, the existing screw conveyor only has the function of conveying materials, and various materials cannot be mixed during the conveying process, resulting in mixing. The quality of the finished concrete is not good, so there is a need for a conveyor that can fully mix granular materials with different particle sizes while conveying materials.

Utility model content

Aiming at the defect that the existing conveyor can only transport materials, the purpose of the utility model is to provide a screw conveyor that can transport multiple materials with different particle sizes and can fully mix multiple materials at the same time.

The purpose of this utility model is to adopt the following technical solutions to achieve. According to the present utility model, a screw conveyor with pre-mixing function is provided, which includes a deceleration motor, a transmission mechanism, a drum provided with a spiral blade on the inner wall, and an idler supporting the drum. The end of the axis of the drum is connected to the inner wall of the drum and is inclined towards the helical direction of the helical blade.

Further, the transmission mechanism includes a pinion fixed on the shaft of the reduction motor, and a large gear fixed on the outer wall of the drum along the circumferential direction and meshed with the pinion.

Further, the scraper is provided with a groove extending along the reverse helical direction of the helical blade.

Further, the other side of the scraper is provided with a baffle extending in a direction parallel to the helical blade and connected with the inner wall of the drum.

Further, the discharge port of the drum is higher than the feed port.

When the screw conveyor with premixing function of the utility model conveys the material, the scraper can carry the granular materials of different particle sizes to the top of the drum along with the movement of the screw blade, and then throw it downward. The height from the material port to the material outlet increases, and part of the material carried by the scraper will be thrown backwards, so as to fully mix the granular materials of different particle sizes.

The above description is only an overview of the technical solutions of the present utility model, in order to understand the technical means of the present utility model more clearly, it can be implemented according to the contents of the specification, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better. It is obvious and easy to understand, and the preferred embodiments are exemplified below, and the detailed description is as follows in conjunction with the accompanying drawings.

Description of drawings

1 is an axonometric view of an embodiment of a screw conveyor with a premixing function of the present invention;

2 is a cross-sectional view of an embodiment of a screw conveyor with a premixing function of the present invention;

3 is a perspective view of another embodiment of a screw conveyor with a premixing function of the present invention;

FIG. 4 is a partial enlarged view of part A of FIG. 3 .

[reference number]

1-Roller 2-Large gear 3-Spiral blade 4-Scraper 401-Groove

Detailed ways

In order to further illustrate the technical means and effects adopted by the present utility model to achieve the predetermined purpose, the following describes the specific implementation of a screw conveyor with a premixing function proposed according to the present utility model in conjunction with the accompanying drawings and preferred embodiments. , structure, characteristics and efficacy, detailed descriptions are as follows.

Please refer to FIG. 1 to FIG. 2 , which are an embodiment of a screw conveyor with a pre-mixing function of the present invention. This embodiment includes a reduction motor, a transmission mechanism, a roller, and an idler. The transmission mechanism is a gear transmission mechanism, specifically: the motor shaft of the reduction motor can fix the pinion by means of key connection, etc., and a large gear 2 meshing with the pinion is sleeved and fixed on the outer wall of the drum 1 along the circumferential direction. The roller 1 is supported on the idler roller, which can limit the axial movement of the roller 1, so that the roller 1 can stably make a circular motion around the axis. The inner wall of the drum is provided with a helical blade 3, and the helical direction of the helical blade 3 is consistent with the rotation direction of the drum 1, thereby pushing the material to move forward. A plurality of scrapers 4 are evenly arranged on the helical blade 3 along the helical direction. In this embodiment, the scraper 4 is a thin plate with uniform thickness and is connected to the helical blade 3 and the drum 1 respectively. Specifically, the scraper 4 is far away from the drum. The end of the axis is connected with the inner wall of the drum (for example, welded or screwed); one side of the scraper 4 is connected with the helical blade 3 (for example, welded or screwed). Then the end of the scraper 4 close to the axis of the drum is located in front of the end far from the axis of the drum, so that the scraper 4 is inclined towards the helical direction of the helical blade 3. When the drum 1 rotates, the scraper 4 moves to the bottom of the drum. Apply an upward lifting force to the material at the bottom of the drum, on the other hand, it can carry part of the material to the top of the drum and then throw it, so that the granular materials with different particle sizes can be mixed evenly. In addition, the idler rollers at both ends of the feed port and the discharge port of the drum 1 can be adjusted so that the discharge port is higher than the feed port, so that part of the material carried by the scraper 4 will be thrown backward when the drum 1 rotates, so that the particle size Different materials are mixed more uniformly.

In another embodiment of the present invention, as shown in FIGS. 3 to 4 , the scraper 4 is provided with a groove 401 extending along the reverse helical direction of the helical blade 3 , which can carry more materials to the top of the drum and throw downwards , and other structures are the same as the previous embodiment.

In yet another embodiment of the present invention, the other side of the scraper 4 is provided with a baffle plate extending in a direction parallel to the helical blade and connected to the inner wall of the drum, so as to carry more materials for throwing when the drum rotates, so as to achieve more Good blending effect.

During the working process of this embodiment, materials of different particle sizes enter into the drum 1 from the feeding port of the drum 1 through a conveyor belt, etc., start the deceleration motor, and the pinion rotates to drive the large gear 2 to rotate the drum 1, and the drum 1 rotates. The rotation direction is the same as the spiral direction of the spiral blade 3. The materials with different particle diameters are conveyed to the discharge port with the rotation of the spiral blade 3. At the same time, the scraper 4 that moves to the bottom of the drum drives part of the material to be thrown downward when it reaches the top. Continuous circulation, when the material reaches the discharge port, the materials with different particle sizes have been fully mixed and can enter the next mixing process.

The above are only the preferred embodiments of the present invention. Any technical personnel who are familiar with the present invention can make any simple and easy steps to the above embodiments according to the technical essence of the present invention without departing from the scope of the technical solution of the present invention. Modifications, equivalent changes and modifications still fall within the scope of the technical solutions of the present invention.

Claims (5)

1. The utility model provides a screw conveyer with function of premixing, includes gear motor, drive mechanism, the inner wall is equipped with helical blade's cylinder, the bearing roller that supports the cylinder, its characterized in that: the spiral blade is provided with a scraping blade, the side surface of which is connected with the spiral blade, the end part far away from the axis of the roller is connected with the inner wall of the roller, and the scraping blade inclines towards the spiral direction of the spiral blade.

2. A screw conveyor with a premixing function as recited in claim 1, wherein: the transmission mechanism comprises a pinion fixedly arranged on a shaft of the speed reducing motor and a bull gear which is fixedly arranged on the outer wall of the roller along the circumferential direction and is meshed with the pinion.

3. A screw conveyor with a premixing function as recited in claim 1, wherein: the scraping piece is provided with a groove extending along the reverse spiral direction of the spiral blade.

4. A screw conveyor with a premixing function as recited in claim 1, wherein: the other side surface of the scraping blade is provided with a baffle plate which extends along the direction parallel to the helical blade and is connected with the inner wall of the roller.

5. A screw conveyor with a premixing function as recited in claim 1, wherein: the discharge hole of the roller is higher than the feed inlet.

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