CN209828830U - Single-shaft combined type mixer - Google Patents

Abstract

The utility model relates to the field of mixers, and discloses a single-shaft composite mixer, which comprises a housing for accommodating materials, a rotatable rotating shaft arranged in the housing, a stirring device fixedly arranged on the rotating shaft, and a fixedly installed The driving device on the housing; the housing includes a cylindrical upper shell and a conical lower shell; the stirring device includes an inner spiral belt that is spirally wound around the rotating shaft, and a first spiral that is arranged along the inner wall of the housing. The spiral ribbon, the second spiral ribbon, and several fixing rods evenly distributed on the rotating shaft for fixedly connecting the first spiral ribbon or the second spiral ribbon; the combination of the first spiral ribbon and the second spiral ribbon forms a double helix structure. Through the above method, the utility model can fully stir the materials in the shell, the stirring effect is good, and there is no residue when discharging; it is especially suitable for homogenization and mixing when large-volume containers are loaded with batches of powdery process materials; It has the characteristics of low speed, low energy consumption and uniform mixing.

Description

A single-shaft compound mixer

technical field

The utility model relates to the field of mixers, in particular to a single-shaft composite mixer.

Background technique

A mixer is a mechanical device that uses mechanical force and gravity to evenly mix two or more materials. There are some deficiencies in the structural design of existing mixers, such as the current single-helix and double-helix conical mixers, because their helixes are installed close to the inner wall of the cylinder, so when the materials are mixed in the conical cylinder, The materials in the upper central area cannot be stirred effectively, and the final mixing effect is poor; and because of the conical shell design, the materials that can be stirred at one time are limited and the capacity is small.

The patent document with the patent number 201820381036.2 discloses a compound fertilizer stirring and mixing equipment, which includes a tank body, a tank cover is installed on the top of the tank body, the tank cover is provided with a feed port, the bottom of the tank body is provided with a discharge port, and the tank body is provided with a There is a rotating shaft, the rotating shaft is equipped with several sliding sleeves, the rotating shaft is provided with a limit bar, and the sliding sleeve is provided with a limit groove that slides with the limit bar. The end of the column away from the rotating shaft is provided with a rotating piece, and the tank cover is provided with a motor, which is connected to the rotating shaft through transmission. Although the mixer can fully mix the materials, and the rotor used for mixing can be disassembled and replaced when damaged, it has a dead angle during discharge, and material residues are prone to occur, which will affect the next use; in addition, it is more laborious to mix. , the transfer piece is easily damaged, and the use cost is high.

Therefore, need to design a kind of mixer that can overcome above-mentioned technical problem.

Utility model content

The technical problem mainly solved by the utility model is to provide a single-shaft composite mixer, which can fully stir the materials in the casing, has good stirring effect, and has no residue when discharging.

In order to solve the above-mentioned technical problems, a technical solution adopted by the utility model is to provide a single-shaft compound mixer, comprising: a housing for accommodating materials, a rotating shaft rotatably arranged in the housing, fixedly arranged A stirring device for mixing and stirring materials on the rotating shaft, and a driving device fixedly installed on the housing for driving the rotating shaft; the housing includes a cylindrical upper shell part and a conical lower shell Shell, the upper shell has a plurality of material inlets on the end surface, the lower shell has a material outlet on the end surface and a baffle that can close the material outlet; the size of the material outlet is the same as the The area of the lower end of the lower shell is the same; the shaft is vertically arranged in the housing, and the center line of the shaft coincides with the center line of the housing; the upper end of the shaft passes through and protrudes from the upper shell The upper end surface of the lower shell part is connected with the drive device, the lower end of the rotating shaft extends to the lower end surface of the lower shell part and leaves a distance from the lower end surface of the lower shell part; The inner ribbon on the rotating shaft, the first ribbon and the second ribbon arranged helically along the inner wall of the housing, and several uniformly distributed on the rotating shaft for fixedly connecting the first ribbon or the The fixing bar of the second spiral band; the combination of the first spiral band and the second spiral band is a double helix structure; The direction of rotation is opposite.

Preferably, one end of the fixed rod is fixedly connected to the rotating shaft, and the other end of the fixed rod is fixedly connected to the first ribbon or the second ribbon, and the fixing rod is perpendicular to the rotating shaft; Each set of two fixed rods is a group, and the combination of each group of fixed rods and the rotating shaft is cross-shaped, and the two fixed rods in each group of fixed rods are respectively connected with the first ribbon and the second ribbon; Each fixed rod is evenly distributed in a 90° circular array around the rotation axis with each group of fixed rods as a unit.

Preferably, an observation port and an observation cover capable of closing the observation port are also provided on the upper end surface of the upper shell.

Preferably, an air hammer is also installed on the outer wall of the lower shell.

Preferably, a support frame for fixing and supporting the housing is also included.

Preferably, the supporting frame includes a rectangular frame surrounding the outer side of the casing and fixedly connected with the casing, and four support columns vertically fixed on the rectangular frame for supporting the rectangular frame.

Preferably, the driving device is a motor; the motor is fixedly installed on the upper end surface of the upper shell part, and a reducer is also fixedly installed on the upper end surface of the upper shell part, and the output shaft of the motor is connected to the upper end surface of the upper shell part. The input shaft of the reducer is fixedly connected, and the output shaft of the reducer is fixedly connected with the extended end of the rotating shaft.

Preferably, the housing is a one-piece structure.

The beneficial effects of the utility model are: the utility model can fully stir the materials in the housing, the stirring effect is good, and the stirring is even; Exclude the material in the shell, avoid material residue, and will not affect the next mixing; it has a simple structure, easy assembly, and low cost of use.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of a preferred embodiment of a kind of uniaxial composite mixer of the present utility model;

Fig. 2 is a schematic diagram of the main structure of a single-shaft composite mixer of the present invention;

Fig. 3 is a front structural schematic view of a rotating shaft and a stirring device in a single-shaft compound mixer of the present invention.

The marks of the parts in the drawings are as follows: 1. Shell; 11. Upper shell; 12. Lower shell; 13. Inlet; 14. Outlet; 15. Baffle; 16. Observation cover; 2. 3. Motor; 31. Reducer; 4. Pneumatic hammer; 5. Rotating shaft; 6. Internal spiral belt; 7. First spiral belt;

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, so that the protection scope of the utility model can be defined more clearly .

Please refer to Fig. 1 to Fig. 3, the utility model embodiment comprises:

A single-shaft compound mixer, comprising: a housing 1 for accommodating materials, a support frame 2 for fixedly supporting the housing 1, a rotating shaft 5 rotatably arranged in the housing 1, and a fixed A stirring device arranged on the rotating shaft 5 for mixing and stirring materials, and a motor 3 fixedly installed on the housing 1 for driving the rotating shaft 5 to rotate. The housing 1 includes a cylindrical upper shell portion 11 and a conical lower shell portion 12; the upper shell portion 11 can accommodate more materials to improve the material capacity that can be stirred each time; the lower shell portion 12 can Better mixing of materials and ease of falling of mixed materials. The upper end surface of the upper shell part 11 has two material inlets 13, which can improve the feeding efficiency; the lower end surface of the lower shell part 12 has a material outlet 14 and a baffle that can close the material outlet 14 15; Various materials enter the housing 1 from the material inlet 13, are mixed and stirred by the stirring device, and then the baffle 15 is opened to be discharged from the material outlet 14. The size of the discharge port 14 is the same as the area of the lower end of the lower shell part 12, so as to ensure that the materials in the shell 1 are fully removed, and avoid residual dead spots, which will affect the next mixing. The housing 1 has an integrated structure, which is convenient and easy to assemble and install, and has high structural strength. The support frame 2 includes a rectangular frame surrounding the outside of the housing 1 and fixedly connected with the housing 1, and four support columns vertically fixed on the rectangular frame for supporting the rectangular frame; The column can fix and support the casing 1 through the rectangular frame, which can keep the lower end surface of the casing 1 away from the ground, so as to facilitate the discharging of the discharge port 14 . The rotating shaft 5 is vertically arranged in the housing 1, and the center line of the rotating shaft 5 coincides with the center line of the housing 1; On the upper end surface, so that the motor 3 drives and controls the rotation of the rotating shaft 5; the lower end of the rotating shaft 5 extends to the lower end surface of the lower shell portion 12 and leaves a distance from the lower end surface of the lower shell portion 12 to prevent it from rotating Arresting on the housing 1 from time to time causes the housing 1 to wear and tear, and can be conveniently blanked. The stirring device includes an inner ribbon 6 spirally wound around the rotating shaft 5, a first ribbon 7 and a second ribbon 8 spirally arranged along the inner wall of the housing 1, and several uniformly distributed The fixing bar 9 on the rotating shaft 5 is used for fixedly connecting the first ribbon 7 or the second ribbon 8 . The inner threaded band 6 is directly fixed around the outer wall of the rotating shaft 5 , which has a simple structure and is easy to process. The combination of the first ribbon 7 and the second ribbon 8 forms a double helix structure, which can fully stir the materials close to the inner wall of the housing 1 and ensure the stirring effect. Both the first spiral belt 7 and the second spiral belt 8 are opposite to the inner spiral belt 6 so as to complete material mixing at a low speed. Both the first ribbon 7 and the second ribbon 8 are fixedly connected to the rotating shaft 5 through the fixing rod 9, one end of the fixing rod 9 is fixedly connected to the rotating shaft 5, and the fixing rod The other end of 9 is fixedly connected with the first spiral band 7 or the second spiral band 8, and the fixed rod 9 is perpendicular to the rotating shaft 5; every two of the fixed rods 9 are a group, and each group of fixed rods 9 Combined with the rotating shaft 5 to form a cross, two fixed rods 9 in each group of fixed rods 9 are respectively connected to the first ribbon 7 and the second ribbon 8; several fixed rods 9 are fixed in each group The rods 9 are uniformly distributed in a 90° circular array around the rotating shaft 5 to fixedly connect the first spiral ribbon 7 or the second spiral ribbon 8, and the fixed connection effect is good. The first screw band 7 and the second screw band 8 can mix and stir the material near the inner wall of the housing 1, and the inner screw band 6 can mix and stir the material near the rotating shaft 5, and the inner screw band 6, the first screw band 7 and the second screw band can mix and stir the material The combined arrangement of the ribbons 8 can effectively improve the stirring effect and make the stirring and mixing more uniform. The motor 3 is fixedly installed on the upper end surface of the upper shell portion 11, and a speed reducer 31 is also fixedly installed on the upper end surface of the upper shell portion 11. The output shaft of the motor 3 and the speed reducer 31 The input shaft is fixedly connected, and the output shaft of the reducer 31 is fixedly connected with the extended end of the rotating shaft 5; the motor 3 can control the rotation of the rotating shaft 5 through the reducer 31, so that the stirring device can be controlled to rotate and stir; the reducer 31 The rotation speed of the motor 3 can be effectively reduced, so that the stirring device rotates and stirs at a low speed. The upper end surface of the upper shell part 11 is also provided with an observation port and an observation cover 16 that can close the observation port. Open the observation cover 16 to see the mixing condition inside the housing 1 and to perform local maintenance. An air hammer 4 is also installed on the outer wall of the lower shell part 12 to prevent materials from being adsorbed on the inner wall of the lower shell part 12 .

The utility model can fully stir the materials in the shell 1 with good stirring effect and uniform stirring; moreover, it can accommodate a lot of stirred materials at one time, saving labor when stirring and mixing; it can fully remove the materials in the shell 1 when discharging. Material, to avoid material residue, will not affect the next mixing; especially suitable for large-volume containers (more than 10 cubic meters) when loading batches of powdery process materials for homogenization and blending; it has low speed and low energy consumption. Low, evenly mixed and other characteristics; its structure is simple, easy to assemble, low cost of use.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (8)

1. A single-shaft compound mixer, comprising: the stirring device comprises a shell for containing materials, a rotating shaft which is rotatably arranged in the shell, a stirring device which is fixedly arranged on the rotating shaft and used for mixing and stirring the materials, and a driving device which is fixedly arranged on the shell and used for driving the rotating shaft to rotate; the method is characterized in that: the shell comprises a cylindrical upper shell part and a conical lower shell part, wherein the end surface of the upper shell part is provided with a plurality of feeding ports, and the end surface of the lower shell part is provided with a discharge port and a baffle capable of closing the discharge port; the size of the discharge hole is the same as the area of the lower end of the lower shell part; the rotating shaft is vertically arranged in the shell, and the center line of the rotating shaft is superposed with the center line of the shell; the upper end of the rotating shaft penetrates through the upper end face extending out of the upper shell part to be connected with the driving device, and the lower end of the rotating shaft extends to the lower end face of the lower shell part and is spaced from the lower end face of the lower shell part; the stirring device comprises an inner spiral belt spirally wound on the rotating shaft, a first spiral belt and a second spiral belt spirally arranged along the inner side wall of the shell, and a plurality of fixing rods uniformly distributed on the rotating shaft and used for fixedly connecting the first spiral belt or the second spiral belt; the first spiral belt and the second spiral belt are combined to form a double-spiral structure; the spiral directions of the first spiral belt and the second spiral belt are opposite to the spiral direction of the inner spiral belt.

2. The single-shaft compound mixer of claim 1, wherein: one end of the fixed rod is fixedly connected with the rotating shaft, the other end of the fixed rod is fixedly connected with the first spiral band or the second spiral band, and the fixed rod is perpendicular to the rotating shaft; two of the fixed rods are in one group, each group of the fixed rods is combined with the rotating shaft to form a cross shape, and the two fixed rods in each group of the fixed rods are respectively connected with the first spiral band and the second spiral band; the plurality of fixed rods are uniformly distributed in a 90-degree annular array around the rotating shaft by taking each group of fixed rods as a unit.

3. The single-shaft compound mixer of claim 1, wherein: an observation port and an observation cover capable of sealing the observation port are further arranged on the upper end face of the upper shell.

4. The single-shaft compound mixer of claim 1, wherein: and an air hammer is further mounted on the outer side wall of the lower shell.

5. The single-shaft compound mixer of claim 1, wherein: the device also comprises a supporting frame for fixedly supporting the shell.

6. The single-shaft compound mixer of claim 5, wherein: the support frame is including surrounding the casing outside and with casing fixed connection's rectangle frame to and four vertical fixation are in be used for supporting on the rectangle frame the support column of rectangle frame.

7. The single-shaft compound mixer of claim 1, wherein: the driving device is a motor; the motor is fixedly installed on the upper end face of the upper shell, the speed reducer is further fixedly installed on the upper end face of the upper shell, an output shaft of the motor is fixedly connected with an input shaft of the speed reducer, and an output shaft of the speed reducer is fixedly connected with an extending end of the rotating shaft.

8. The single-shaft compound mixer of claim 1, wherein: the shell is of an integrated structure.