Coaxial counter-rotating type high-speed colloid mill mechanism

Abstract

The utility model discloses a coaxial counter-rotating type high-speed colloid mill mechanism, which relates to the technical field of material polishing and processing and comprises an equipment rack, a motor is fixedly mounted on the equipment rack, and a gear box is fixedly connected to one side of the equipment rack; a concentric inner shaft and a concentric outer shaft are rotationally connected into the gearbox, the concentric inner shaft penetrates through the concentric outer shaft, an upper rotor grinding body is fixedly connected to the concentric inner shaft, a lower rotor grinding body is fixedly connected to the upper end of the concentric outer shaft, and a gear mechanism is arranged in the gearbox. The motor drives the concentric inner shaft and the concentric outer shaft to rotate in opposite directions through a gear mechanism. According to the utility model, under the condition of using grinding materials at a high rotating speed, due to the principle of relative movement, the requirements of the using conditions can be met by only enabling the two rotor grinding bodies to rotate at a relative half of the rotating speed, and the requirements of the reduction of the working rotating speed on the strength, the precision and the matching of equipment are met.

Description

Technical Field

[0001] The utility model relates to the technical field of material grinding and processing, in particular to a coaxial reverse high-speed colloid mill mechanism. Background Art

[0002] A colloid mill is a high-speed mill, which has the characteristics of compact design, stable performance, convenient operation, wide adaptability, high production efficiency, etc., and is the most ideal processing equipment for processing fine materials.

[0003] The working principle of the colloid mill is that the motor drives the rotating grinding block (or called rotor) and the matching fixed grinding block (or called stator) to rotate relatively at high speed through transmission. Among them, the rotor rotates at high speed and the stator is relatively stationary. The material to be processed generates a downward spiral impact force through its own weight or external pressure (which can be generated by a pump), and is effectively emulsified, dispersed, homogenized and pulverized when passing through the gap (the gap is adjustable) between the rotor and the stator under the action of powerful shear force, friction force, high-frequency vibration, high-speed vortex and other physical effects, so as to achieve the effect of ultra-fine pulverization and emulsification of the material.

[0004] When the colloid mill is in use, the working speed has a great influence on its working efficiency and crushing effect. Under the condition that the gap between the stator and the rotor remains unchanged, with the increase of the speed, the shear rate of the material will also increase. Therefore, a higher speed during the operation of the rotor can produce more effective grinding and mixing of the material and obtain finer material particles. Nowadays, the speed of the colloid mill applied in the general industrial field is about 3000 revolutions per minute, and colloid mills with a speed of 14000 revolutions per minute and above have been developed with the development of the requirements for the grinding particle size of materials in various industries.

[0005] The speed increase of the rotor of the colloid mill is not simply achieved by a speed reducer or replacing the motor with a high speed. When the speed increases, higher requirements are put forward for the strength of the main shaft and the sealing effect. In particular, the high-speed rotating rotor will generate a torque (which becomes larger with the increase of the speed) and dynamic unbalance force in the direction of its rotation, which need to be balanced. Therefore, higher requirements are put forward for the overall stiffness and precision of the equipment, ultimately resulting in an increase in the equipment cost and manufacturing level. Content of the Utility Model

[0006] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model. However, such simplifications or omissions cannot be used to limit the scope of the utility model.

[0007] In view of the above problems existing in the prior art of a coaxial reverse high-speed colloid mill mechanism, the present utility model is proposed.

[0008] To solve the above technical problems, the present utility model provides the following technical solutions:

[0009] A coaxial reverse high-speed colloid mill mechanism, comprising: an equipment frame, on which a motor is fixedly installed, and on one side of the equipment frame, a gearbox is also fixedly connected;

[0010] Wherein, a concentric inner shaft and a concentric outer shaft are respectively rotatably connected in the gearbox, the concentric inner shaft penetrates through the concentric outer shaft and they are concentrically arranged. A upper rotor grinding body is fixedly connected to the concentric inner shaft, a lower rotor grinding body is fixedly connected to the upper end of the concentric outer shaft. A gear mechanism is arranged in the gearbox, and the motor drives the concentric inner shaft and the concentric outer shaft to rotate in opposite directions through the gear mechanism.

[0011] As a preferred scheme of the coaxial reverse high-speed colloid mill mechanism of the present utility model, wherein: a grinding gap is reserved between the upper rotor grinding body and the lower rotor grinding body, and a feed hole communicating with the grinding gap is opened on the upper rotor grinding body.

[0012] As a preferred scheme of the coaxial reverse high-speed colloid mill mechanism of the present utility model, wherein: a discharge bin is fixedly connected to the upper side of the gearbox, and a feed bin is fixedly connected to the discharge bin.

[0013] As a preferred scheme of the coaxial reverse high-speed colloid mill mechanism of the present utility model, wherein: the gear mechanism includes: two sets of symmetrically arranged driven gears up and down and a driving gear meshed with the two driven gears. The output end of the motor is fixedly connected with a main shaft, the driving gear is fixedly connected with the main shaft, the driven gear on the upper side is fixedly connected with the concentric outer shaft, and the driven gear on the lower side is fixedly connected with the concentric inner shaft.

[0014] As a preferred scheme of the coaxial reverse high-speed colloid mill mechanism of the present utility model, wherein: the gear ratio of the driving gear to the driven gear is 1:1, and both are made of copper alloy metal materials.

[0015] The beneficial effects of the present utility model:

[0016] 1. In the present utility model, when facing the use abrasive conditions of high rotational speed, due to the principle of relative motion, only need to make the two rotor grinding bodies rotate at a rotational speed that is half of the relative rotational speed to meet the use condition requirements. The reduction of the working rotational speed reduces the requirements for the strength, precision and fit of the equipment, and at the same time is beneficial to extending the service life of the equipment, which is convenient for popularization in the industry.

[0017] 2. In the present utility model, the rotational torque and reaction force generated by two rotor grinding bodies rotating in the same speed but in opposite directions can be balanced and offset with each other because the two rotors move coaxially, at the same speed and in opposite directions. This reduces the vibration and unbalanced force generated by the high-speed rotor, and also reduces the requirements for the processing accuracy of the equipment, which is beneficial to reducing the manufacturing cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0019] Figure 1 is the overall structural schematic diagram of a coaxial reverse-rotating high-speed colloid mill mechanism proposed by the present utility model;

[0020] Figure 2 is the operating principle structural schematic diagram of a coaxial reverse-rotating high-speed colloid mill mechanism proposed by the present utility model;

[0021] Figure 3 is the material flow line structural schematic diagram of a coaxial reverse-rotating high-speed colloid mill mechanism proposed by the present utility model.

[0022] In the figure: 1-01, motor; 1-02, main shaft; 1-03, driving gear; 1-04, driven gear; 1-05, concentric inner shaft; 1-06, concentric outer shaft; 1-07, gear box; 1-08, lower rotor grinding body; 1-09, upper rotor grinding body; 1-10, feed bin; 1-11, discharge bin; 1-12, equipment frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made in conjunction with the drawings of the specification.

[0024] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] Second, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures, or characteristics that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0026] Thirdly, the present utility model is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of description, the cross-sectional views showing the device structure will be locally enlarged in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0027] Referring to Figures 1 - 3 , for an embodiment of the present utility model, a coaxial reverse high-speed colloid mill mechanism is provided. This mechanism includes: an equipment frame 1-12, on which a motor 1-01 is fixedly installed. The motor 1-01 is a standard general-purpose motor, and different motors can be used according to different speed, environment, and power supply requirements. On one side of the equipment frame 1-12, a gearbox 1-07 is also fixedly connected.

[0028] Among them, a concentric inner shaft 1-05 and a concentric outer shaft 1-06 are respectively rotatably connected in the gearbox 1-07. The concentric inner shaft 1-05 passes through the concentric outer shaft 1-06 and the two are concentrically arranged. A upper rotor grinding body 1-09 is fixedly connected to the concentric inner shaft 1-05, and a lower rotor grinding body 1-08 is fixedly connected to the upper end of the concentric outer shaft 1-06. A gear mechanism is arranged in the gearbox 1-07. The gearbox 1-07 is used to install and support various types of gear sets, and at the same time, the internal space of the box body can be used to add and store the lubricating oil required for the gear sets. The motor 1-01 drives the concentric inner shaft 1-05 and the concentric outer shaft 1-06 to rotate in opposite directions through the gear mechanism. A grinding gap is reserved between the upper rotor grinding body 1-09 and the lower rotor grinding body 1-08, and a feed hole communicating with the grinding gap is provided on the upper rotor grinding body 1-09. A discharge bin 1-11 is fixedly connected to the upper side of the gearbox 1-07, and a feed bin 1-10 is fixedly connected to the discharge bin 1-11.

[0029] Specifically, the gear mechanism includes: two sets of driven gears 1-04 symmetrically arranged up and down and a driving gear 1-03 meshed with the two driven gears 1-04. The output end of the motor 1-01 is fixedly connected with a main shaft 1-02, and the driving gear 1-03 is fixedly connected with the main shaft 1-02. The driven gear 1-04 on the upper side is fixedly connected with a concentric outer shaft 1-06, and the driven gear 1-04 on the lower side is fixedly connected with a concentric inner shaft 1-05. The gear ratio of the driving gear 1-03 to the driven gear 1-04 is 1:1, and both are made of copper alloy metal material. The gear type can be selected according to the speed requirement. In this figure, it is a bevel gear.

[0030] In summary, the present invention proposes to improve the grinding block mechanism by introducing a coaxial reverse rotation mechanism, that is, to make the original stator grinding block into a rotor grinding body that rotates in the opposite direction at the same speed as the rotor grinding body. The relative rotational speed of the two rotor grinding bodies rotating in the opposite direction at the same speed will become twice the rotational speed of the rotor grinding body. Compared with the combination of the original stator grinding block and the rotor grinding body, the present invention can double the relative rotational speed between the two grinding bodies, improve the working efficiency of the grinding block under the condition of the same input rotational speed of the motor, reduce the requirements for the strength, precision, and fit of the equipment for the working rotational speed, and at the same time is beneficial to extending the service life of the equipment, facilitating promotion in the industry, reducing the vibration and unbalanced force generated by the high-speed rotor, and also reducing the requirements for the processing precision of the equipment, which is beneficial to reducing the manufacturing cost of the equipment.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A coaxial counter-rotating high-speed colloid mill mechanism, characterized in that: include: An equipment frame (1-12), a motor (1-01) being fixedly mounted on the equipment frame (1-12), and a gear box (1-07) being fixedly connected to one side of the equipment frame (1-12); The gear box (1-07) is rotatably connected with a concentric inner shaft (1-05) and a concentric outer shaft (1-06), the concentric inner shaft (1-05) passes through the concentric outer shaft (1-06), and the two are concentrically arranged. An upper rotor grinding body (1-09) is fixedly connected to the concentric inner shaft (1-05), and a lower rotor grinding body (1-08) is fixedly connected to the upper end of the concentric outer shaft (1-06). A gear mechanism is arranged in the gear box (1-07), and the motor (1-01) drives the concentric inner shaft (1-05) and the concentric outer shaft (1-06) to rotate in opposite directions through the gear mechanism.

2. The coaxial counter-rotating high-speed colloid mill mechanism according to claim 1 is characterized in that: A grinding gap is reserved between the upper rotor grinding body (1-09) and the lower rotor grinding body (1-08), and a feed hole connected to the grinding gap is opened on the upper rotor grinding body (1-09).

3. The coaxial counter-rotating high-speed colloid mill mechanism according to claim 1 is characterized in that: A discharge bin (1-11) is fixedly connected to the upper side of the gear box (1-07), and a feed bin (1-10) is fixedly connected to the discharge bin (1-11).

4. The coaxial counter-rotating high-speed colloid mill mechanism according to claim 2, characterized in that: The gear mechanism comprises: two groups of symmetrically arranged driven gears (1-04) in an upper and lower manner and a driving gear (1-03) meshingly connected with the two driven gears (1-04); the output end of the motor (1-01) is fixedly connected with a main shaft (1-02); the driving gear (1-03) is fixedly connected with the main shaft (1-02); the driven gear (1-04) located on the upper side is fixedly connected with a concentric outer shaft (1-06); and the driven gear (1-04) located on the lower side is fixedly connected with a concentric inner shaft (1-05).

5. The coaxial counter-rotating high-speed colloid mill mechanism according to claim 4 is characterized in that: The gear ratio of the driving gear (1-03) and the driven gear (1-04) is 1:1, and both are made of copper alloy metal material.

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