Airflow classifier

Abstract

The airflow classifier comprises a classifier body, a coarse powder discharging opening is formed in the lower end face of the classifier body, a feeding pipe is arranged at the bottom of the left end face of the classifier body in a penetrating mode, an air inlet pipe is arranged at the bottom of the right end face of the classifier body in a penetrating mode, and a fine powder discharging pipe is arranged at the top of the right end face of the classifier body in a penetrating mode. A cover plate is hinged to the rear side of the upper end face of the grader body, a mounting groove is formed in the top of the left end face of the grader body, a mounting plate is arranged in the mounting groove, a guide seat is arranged at the bottom of the left end face of the mounting plate, guide rods are symmetrically arranged on the left end face of the grader body corresponding to the guide seat, clamping rings are arranged on the outer end faces of the two guide rods, and the clamping rings are in threaded connection with the guide rods. A driving shaft is rotationally arranged on the mounting plate, a driving motor is connected to the left end of the driving shaft, a grading wheel corresponding to the driving shaft and the fine powder discharging pipe is detachably arranged in the grading machine body, and through the design of the mounting plate, the grading wheel in the grading machine body is convenient to disassemble, assemble and overhaul.

Description

Technical Field

[0001] This utility model relates to the field of material separation technology, and more specifically, to an air classifier. Background Technology

[0002] An air classifier is an air classifying device that forms a classification system with a cyclone separator, dust collector, and induced draft fan. Material is drawn in by the fan from the lower inlet of the classifier and moves at high speed with the rising airflow to the classification zone. Under the strong centrifugal force generated by the high-speed rotating classification turbine, coarse and fine materials are separated. However, existing air classifiers suffer from problems such as damage to the classification wheel after prolonged use, difficulty in disassembly and assembly, and a lack of suitable quick-release mechanisms. Furthermore, the top cover needs to be opened during disassembly and assembly, and there is a lack of suitable quick-locking mechanisms for adjusting the opening and closing of the top cover. Additionally, the overall support height is fixed, making the support mechanism inconvenient to adjust, thus its practicality needs improvement. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the problems existing in the prior art, this utility model provides an air classifier to solve the technical problems mentioned in the background art, such as the classifier wheel being prone to damage after long-term use and the difficulty in disassembly and assembly.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air classifier, comprising a classifier body, a coarse powder outlet on the lower end face of the classifier body, a feed pipe penetrating the bottom of the left end face of the classifier body, an air inlet pipe penetrating the bottom of the right end face of the classifier body, a fine powder outlet pipe penetrating the top of the right end face of the classifier body, a cover plate hinged to the rear side of the upper end face of the classifier body, an installation groove on the top of the left end face of the classifier body, an installation plate inside the installation groove, a guide seat on the bottom of the left end face of the installation plate, guide rods symmetrically arranged on the left end face of the classifier body corresponding to the guide seat, retaining rings on the outer end faces of the two guide rods, the retaining rings and guide rods being threadedly connected, a drive shaft rotatably mounted on the installation plate, a drive motor connected to the left end of the drive shaft, and a classifying wheel detachably mounted inside the classifier body corresponding to the drive shaft and the fine powder outlet pipe.

[0007] The present invention is further configured such that a retaining plate is provided on the right side of the outer end face of the drive shaft, a rotating ring is provided on the right end face of the classifying wheel corresponding to the fine powder discharge pipe, a retaining hole is provided on the left end face of the classifying wheel corresponding to the drive shaft, and a retaining groove is provided on the inner wall of the retaining hole corresponding to the retaining plate, so as to facilitate the matching and installation of the classifying wheel.

[0008] The present invention is further configured such that a limiting plate is provided on the front end face of the cover plate, a limiting rod is provided through the limiting plate, and a limiting hole is opened on the front end face of the grading machine body corresponding to the limiting rod, so as to limit the closing of the cover plate.

[0009] The present invention is further configured such that a limiting ring is provided at the front end of the limiting rod, and a spring is provided between the limiting ring and the limiting plate. The spring is fitted on the outer end of the limiting rod for convenient and quick opening and closing adjustment.

[0010] The present invention is further configured such that the grading machine body is provided with support legs on both the front and rear sides of the outer end, and support seats are slidably provided on both support legs to facilitate the adjustment of the support height.

[0011] The present invention is further configured such that each of the two support seats is provided with a locking hole, and each of the two locking holes is provided with a locking rod. The locking rod and the locking hole are threadedly connected to achieve locking for height adjustment.

[0012] The present invention is further configured such that locking grooves are provided on both of the legs corresponding to the locking rods, thereby enhancing the locking effect.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides an air classifier with the following advantages:

[0015] 1. Through the design of the mounting plate, the mounting plate is detachable relative to the mounting groove. The guide seat and guide rod cooperate to slide and guide, and the retaining ring and guide rod are threaded to lock the installation. The internal inspection and disassembly operations can be carried out through the hinged cover position, which facilitates the disassembly and maintenance of the grading wheel inside the grading machine body.

[0016] 2. Through the design of the limiting rod, the limiting rod is set through the limiting plate. The limiting rod and the limiting hole cooperate to limit the cover plate in the closed state. The limiting ring and the spring are set together to facilitate quick opening and closing adjustment.

[0017] 3. Through the design of the outriggers and support base, the support base is slidably set relative to the outriggers. The locking rod and locking hole are threaded together, and the locking rod and locking groove are engaged. This strengthens the locking of the lifting adjustment, improves the locking stability, facilitates the adjustment of the overall support height, and makes it convenient to install and adjust for different external use environments. Attached Figure Description

[0018] Figure 1 A schematic diagram of the preferred overall structure of an air classifier;

[0019] Figure 2 A schematic diagram of the overall structure of a preferred air classifier without a cover plate and support legs;

[0020] Figure 3 A cross-sectional view of the internal structure of a preferred air classifier body;

[0021] Figure 4 A schematic diagram of the overall structure of a preferred classifier wheel in an air classifier;

[0022] Figure 5 A schematic diagram of the overall structure of a preferred cover plate for an air classifier;

[0023] Figure 6 This is a schematic diagram of a preferred support structure for an air classifier.

[0024] In the diagram: 1. Classifier body; 2. Coarse powder outlet; 3. Feed pipe; 4. Air inlet pipe; 5. Fine powder outlet pipe; 6. Cover plate; 7. Mounting groove; 8. Mounting plate; 9. Guide seat; 10. Guide rod; 11. Snap ring; 12. Drive shaft; 13. Drive motor; 14. Classifying wheel; 15. Snap plate; 16. Rotating ring; 17. Snap hole; 18. Snap groove; 19. Limiting plate; 20. Limiting rod; 21. Limiting hole; 22. Limiting ring; 23. Spring; 24. Support leg; 25. Support seat; 26. Locking hole; 27. Locking rod; 28. Locking groove. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0028] Please see Figures 1-5An air classifier includes a classifier body 1, a coarse powder outlet 2 on the lower end face of the classifier body 1, a feed pipe 3 penetrating the bottom of the left end face of the classifier body 1, an air inlet pipe 4 penetrating the bottom of the right end face of the classifier body 1, a fine powder outlet pipe 5 penetrating the top of the right end face of the classifier body 1, a cover plate 6 hinged to the rear side of the upper end face of the classifier body 1, an installation groove 7 on the top of the left end face of the classifier body 1, an installation plate 8 inside the installation groove 7, a guide seat 9 at the bottom of the left end face of the installation plate 8, guide rods 10 symmetrically arranged on the left end face of the classifier body 1 corresponding to the guide seat 9, a retaining ring 11 on the outer end face of each of the two guide rods 10, the retaining ring 11 and the guide rod 10 being threadedly connected, a drive shaft 12 rotatably mounted on the installation plate 8, a drive motor 13 connected to the left end of the drive shaft 12, and a classifying wheel 14 detachably mounted inside the classifier body 1 corresponding to the drive shaft 12 and the fine powder outlet pipe 5.

[0029] In this embodiment, the hinged cover plate 6 is opened, the retaining ring 11 is rotated, the retaining ring 11 and the guide rod 10 are threaded together, after the retaining ring 11 is removed, the mounting plate 8 with the guide seat 9 slides outward relative to the guide rod 10, the mounting plate 8 is taken out from the mounting groove 7, and the internal grading wheel 14 is disassembled and inspected.

[0030] More specifically, external raw materials enter through the feed pipe 3, external air enters the interior through the air inlet pipe 4, the drive motor 13 drives the drive shaft 12, the drive shaft 12 drives the classifying wheel 14 to rotate, classifying the internal materials. Large particles are discharged outward through the bottom coarse powder outlet 2, and fine powder enters the classifying wheel 14 and is discharged outward through the fine powder outlet pipe 5.

[0031] Please see Figure 2 and Figure 4 As one embodiment of the classifying wheel 14: a clamping plate 15 is provided on the right side of the outer end face of the drive shaft 12, a rotating ring 16 is provided on the right end face of the classifying wheel 14 corresponding to the fine powder discharge pipe 5, a clamping hole 17 is provided on the left end face of the classifying wheel 14 corresponding to the drive shaft 12, and a clamping groove 18 is provided on the inner wall of the clamping hole 17 corresponding to the clamping plate 15.

[0032] Specifically, the rotating ring 16 of the classifying wheel 14 is installed in conjunction with the fine powder discharge pipe 5, and the drive shaft 12 with the clamping plate 15 is installed in conjunction with the left clamping hole 17 and the clamping groove 18 for easy installation and clamping.

[0033] Please see Figure 1 , Figure 2 and Figure 5 As one embodiment of the cover plate 6: a limiting plate 19 is provided on the front end face of the cover plate 6, a limiting rod 20 is provided through the limiting plate 19, a limiting hole 21 is opened on the front end face of the classifier body 1 corresponding to the limiting rod 20, a limiting ring 22 is provided at the front end of the limiting rod 20, a spring 23 is provided between the limiting ring 22 and the limiting plate 19, and the spring 23 is fitted on the outer end of the limiting rod 20.

[0034] Specifically, when the cover plate 6 is opened, the limiting ring 22 is grasped, the limiting rod 20 is pulled outward, the spring 23 is stretched, the limiting rod 20 is pulled out from the limiting hole 21, and the cover plate 6 is hinged open.

[0035] Please see Figure 1 and Figure 6 As one implementation method for support adjustment: the outer end face and front and rear sides of the grading machine body 1 are provided with support legs 24, and support seats 25 are slidably provided on the two support legs 24. Locking holes 26 are provided on the two support seats 25. Locking rods 27 are provided inside the two locking holes 26. The locking rods 27 and the locking holes 26 are threadedly connected. Locking grooves 28 are provided on the two support legs 24 corresponding to the locking rods 27.

[0036] Specifically, the support height can be adjusted according to usage needs. The support base 25 slides up and down relative to the support leg 24 to adjust to a suitable position. Then, the locking rod 27 is rotated. The locking rod 27 and the locking hole 26 are threaded together, and the locking rod 27 and the locking groove 28 are engaged to achieve stable locking of the height adjustment.

[0037] In summary, the overall equipment is in use:

[0038] When the cover plate 6 is in the open / closed state, grasp the limiting ring 22, pull the limiting rod 20 outward, the spring 23 is stretched, and after the limiting rod 20 is pulled out from the limiting hole 21, the cover plate 6 is hinged open. After the cover plate 6 is opened, internal maintenance operations are performed. After the maintenance is completed, the cover plate 6 is closed. Grasp the limiting ring 22, pull the limiting rod 20 outward, the spring 23 is stretched, and after the hinge is closed, release the limiting ring 22, the spring 23 retracts, and the limiting rod 20 returns to its original position and is inserted into the limiting hole 21.

[0039] When the classifying wheel 14 is in the disassembly and maintenance state, after the cover plate 6 is opened, the retaining ring 11 is rotated, and the retaining ring 11 and the guide rod 10 are threaded together and removed. The mounting plate 8 slides outward relative to the mounting groove 7, and the guide rod 10 and the guide seat 9 cooperate to slide and guide. The mounting plate 8, the drive shaft 12 and the drive motor 13 slide outward as a whole. The classifying wheel 14 is disassembled and maintained relative to the drive shaft 12 and the fine powder discharge pipe 5. After the maintenance is completed, the rotating ring 16 of the classifying wheel 14 and the fine powder discharge pipe 5 are installed together. The mounting plate 8 slides back to its original position. The drive shaft 12 with the retaining plate 15 is installed corresponding to the retaining hole 17 and the retaining groove 18 of the classifying wheel 14. The retaining ring 11 and the guide rod 10 are threaded together to achieve tight mounting.

[0040] When the support height is adjusted, the support base 25 can slide relative to the support leg 24 to adjust to the appropriate position according to the usage environment. The locking rod 27 is then installed, and the locking rod 27 is threaded into the locking hole 26. The locking rod 27 and the locking groove 28 cooperate to achieve stable locking of the position adjustment, which facilitates the adjustment of different support heights.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air classifier, comprising a classifier body (1), wherein a coarse powder outlet (2) is provided on the lower end face of the classifier body (1), a feed pipe (3) is provided through the bottom of the left end face of the classifier body (1), an air inlet pipe (4) is provided through the bottom of the right end face of the classifier body (1), and a fine powder outlet pipe (5) is provided through the top of the right end face of the classifier body (1), characterized in that: The upper end face of the classifier body (1) is hinged with a cover plate (6). The top of the left end face of the classifier body (1) is provided with an installation groove (7). The installation groove (7) is provided with an installation plate (8). The bottom of the left end face of the installation plate (8) is provided with a guide seat (9). The left end face of the classifier body (1) is symmetrically provided with guide rods (10) corresponding to the guide seat (9). The outer end face of the two guide rods (10) is provided with a retaining ring (11). The retaining ring (11) and the guide rod (10) are threadedly connected. The installation plate (8) is rotatably provided with a drive shaft (12). The left end of the drive shaft (12) is connected with a drive motor (13). The classifier body (1) is detachably provided with a classifying wheel (14) corresponding to the drive shaft (12) and the fine powder discharge pipe (5).

2. The air classifier according to claim 1, characterized in that: The drive shaft (12) has a retaining plate (15) on the right side of its outer end face. The grading wheel (14) has a rotating ring (16) on its right end face corresponding to the fine powder discharge pipe (5). The grading wheel (14) has a retaining hole (17) on its left end face corresponding to the drive shaft (12). The retaining hole (17) has a retaining groove (18) on its inner wall corresponding to the retaining plate (15).

3. The air classifier according to claim 1, characterized in that: The front end face of the cover plate (6) is provided with a limiting plate (19), and a limiting rod (20) is provided through the limiting plate (19). The front end face of the grading machine body (1) is provided with a limiting hole (21) corresponding to the limiting rod (20).

4. An air classifier according to claim 3, characterized in that: The limiting rod (20) has a limiting ring (22) at its front end. A spring (23) is connected between the limiting ring (22) and the limiting plate (19). The spring (23) is fitted on the outer end of the limiting rod (20).

5. An air classifier according to claim 1, characterized in that: The grading machine body (1) has support legs (24) on both the front and rear sides of its outer end, and support seats (25) are slidably provided on both support legs (24).

6. An air classifier according to claim 5, characterized in that: Both of the support bases (25) are provided with locking holes (26), and both of the locking holes (26) are provided with locking rods (27), which are threadedly connected to the locking holes (26).

7. An air classifier according to claim 6, characterized in that: Both of the legs (24) have locking grooves (28) corresponding to the locking rod (27).

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