Adjusting structure of grading discharging device of jet mill

Abstract

The utility model discloses a jet mill grading discharger adjusting structure which comprises a grading body, observation windows are fixedly installed on the upper portion of the front end and the upper portion of the rear end of the grading body in a penetrating mode, a fixing base is fixedly installed on the upper portion of the right end of the grading body, and a driving device is installed at the right end of the fixing base. A supporting base is fixedly installed on the upper portion of the left end of the grading body in a penetrating mode, a discharging pipe is movably installed at the left end of the supporting base in a penetrating mode, an adjusting device is fixedly installed at the rear end of the supporting base, and an upper cover is installed at the upper end of the grading body. The first servo motor drives the threaded rod, the threaded rod drives the fixing plate and the discharging pipe to conduct adjustment, compared with manual rotation of the threaded rod, the mode saves more time and labor, the adjustment efficiency is improved, the observation window is further formed in the grading body and just corresponds to the grading wheel, and therefore the grading effect is improved. And a worker can directly observe the adjusted distance between the discharging pipe and the grading wheel, so that the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of airflow pulverizers, and particularly relates to an adjusting structure for a classification discharging device of an airflow pulverizer. Background Technique

[0002] After the compressed air is filtered and dried, the airflow pulverizer injects it into the pulverizing chamber at a high speed through a Laval nozzle. At the intersection point of multiple high-pressure airflows, the material is repeatedly collided, rubbed, and sheared to be pulverized. The pulverized material moves to the classification area along with the upward airflow under the suction of the fan. Under the powerful centrifugal force generated by the high-speed rotating classification turbine, the coarse and fine materials are separated. The fine particles meeting the particle size requirements enter the cyclone separator and the dust collector through the classification wheel for collection, and the coarse particles drop to the pulverizing area to continue pulverizing. However, when the pulverizer pulverizes the material, there needs to be a certain gap between the classification wheel and the discharging device, so the discharging device needs to be adjusted frequently.

[0003] The existing patent (application number 202322453453.7) discloses an adjusting structure for a classification discharging device of an airflow pulverizer, which includes a classification body. A top cover is arranged at the upper end of the classification body, a motor is fixed at the rear of the classification body, the output end of the motor extends forward into the interior of the classification body and is fixedly connected with a classification wheel. A discharging device is arranged at the front of the classification body, and the discharging device and the classification wheel are arranged at intervals front and back. A moving plate is fixed on the outer wall of the discharging device. The upper right part of the moving plate is threadedly connected with a moving device, and the lower right part of the moving plate is movably connected with a limiting device. The other ends of the moving device and the limiting device are fixed on the outer wall of the classification body.

[0004] The above patent rotates the wheel to screw the screw rod, drives the moving plate and the discharging pipe to move back and forth, and adjusts the distance between the discharging pipe and the classification wheel. However, the manual rotation method is time-consuming and laborious. Especially when the gap adjustment distance is too large, it needs to be rotated many times. At the same time, the staff cannot observe the distance between the discharging pipe and the classification wheel well, resulting in certain limitations in the use of the device. Content of the Utility Model

[0005] The main purpose of the utility model is to provide an adjusting structure for a classification discharging device of an airflow pulverizer, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An adjusting structure for the grading and discharging device of an air classifier, comprising a grading body. Observation windows are fixedly installed through the upper parts of the front end and the rear end of the grading body. A fixed seat is fixedly installed on the upper part of the right end of the grading body. A driving device is installed at the right end of the fixed seat. A support seat is fixedly installed through the upper part of the left end of the grading body. A discharge pipe is movably installed through the left end of the support seat. An adjusting device is fixedly installed at the rear end of the support seat. An upper cover is installed on the upper end of the grading body.

[0008] Preferably, the adjusting device includes an installation frame and a fixing plate. A first servo motor is installed at the right end of the installation frame. A threaded rod is fixedly installed at the output end of the first servo motor. The left end of the threaded rod is rotatably connected to the installation frame. Sliding grooves are opened on the upper inner wall and the lower inner wall of the installation frame. Installation plates are installed at the upper right part and the lower right part of the installation frame. A threaded groove is opened in the middle of the right end of the fixing plate. Sliders are installed at the upper end and the lower end of the fixing plate. The fixing plate is installed on the threaded rod through the threaded groove. The front end of the fixing plate is fixedly connected to the discharge pipe. The installation frame is installed at the rear end of the support seat through two installation plates. The threaded rod on the first servo motor rotates between the left inner wall and the right inner wall of the installation frame. When the threaded rod rotates, it will drive the fixing plate on its outer surface. The fixing plate will slide in the sliding groove of the installation frame through the sliders on it. And the fixing plate is fixedly connected to the discharge pipe. So when the fixing plate slides back and forth in the installation frame, it will drive the discharge pipe to move, thereby adjusting the protruding length of the discharge pipe on the support seat to adjust the distance between the discharge pipe and the grading wheel.

[0009] Preferably, the driving device includes a second servo motor. A connecting block is fixedly installed at the output end of the second servo motor. A grading wheel is installed at the left end of the connecting block. A first connecting groove is opened at the left end of the grading wheel. The second servo motor is installed at the right end of the fixed seat. An observation window is also opened on the grading body, which just corresponds to the grading wheel, enabling the staff to directly observe the adjusted distance between the discharge pipe and the grading wheel.

[0010] Preferably, a second connecting groove is commonly penetrated through the left end and the right end of the support seat.

[0011] Preferably, the installation frame is in a rectangular shape with a mouth shape, and the sliders are located in the sliding grooves.

[0012] Preferably, the first connecting groove and the second connecting groove have the same size and are corresponding to each other in the left-right position.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. When it is necessary to appropriately adjust the distance between the discharge pipe and the classification wheel, the first servo motor on the adjustment device drives the threaded rod thereon to rotate between the left inner wall and the right inner wall of the mounting frame. When the threaded rod rotates, it will drive the fixing plate on its outer surface. The fixing plate will slide in the chute on the mounting frame through the slider thereon. Since the fixing plate is fixedly connected to the discharge pipe, when the fixing plate slides back and forth in the mounting frame, it will drive the discharge pipe to move, thereby adjusting the extension length of the discharge pipe on the support base to adjust the distance between the discharge pipe and the classification wheel.

[0015] 2. Driving the threaded rod by the first servo motor, and the threaded rod drives the fixing plate and the discharge pipe for adjustment. Compared with manually turning the threaded rod, this method is not only more time-saving and labor-saving, improving the adjustment efficiency, but also there is an observation window on the classification body, which just corresponds to the classification wheel, enabling the staff to directly observe the adjusted distance between the discharge pipe and the classification wheel, thus improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of an adjustment structure of a classification and discharge device of an air classifier of the present utility model;

[0017] Figure 2 is the overall structural schematic diagram of an adjustment device of an adjustment structure of a classification and discharge device of an air classifier of the present utility model;

[0018] Figure 3 is the overall structural schematic diagram of a driving device of an adjustment structure of a classification and discharge device of an air classifier of the present utility model;

[0019] Figure 4 is the overall structural schematic diagram of a support base of an adjustment structure of a classification and discharge device of an air classifier of the present utility model.

[0020] In the figure: 1, classification body; 2, adjustment device; 3, driving device; 4, support base; 5, observation window; 6, fixed seat; 7, discharge pipe; 8, upper cover; 20, mounting frame; 21, fixing plate; 22, first servo motor; 23, threaded rod; 24, chute; 25, thread groove; 26, slider; 27, mounting plate; 30, second servo motor; 31, connecting block; 32, classification wheel; 33, first connection groove; 40, second connection groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. shall be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] As Figures 1-4 shown, an adjustment structure of a classifier discharge device for a jet mill includes a classifier body 1. Observation windows 5 are fixedly installed through insertion at the upper parts of the front end and the rear end of the classifier body 1. A fixed seat 6 is fixedly installed at the upper part of the right end of the classifier body 1. A driving device 3 is installed at the right end of the fixed seat 6. A support seat 4 is fixedly installed through insertion at the upper part of the left end of the classifier body 1. A discharge pipe 7 is movably installed through insertion at the left end of the support seat 4. An adjustment device 2 is fixedly installed at the rear end of the support seat 4. An upper cover 8 is installed at the upper end of the classifier body 1.

[0025] The adjusting device 2 includes a mounting frame 20 and a fixing plate 21. A first servo motor 22 is installed at the right end of the mounting frame 20. The output end of the first servo motor 22 is fixedly installed with a threaded rod 23. The left end of the threaded rod 23 is rotatably connected to the mounting frame 20. Chute grooves 24 are opened on both the upper inner wall and the lower inner wall of the mounting frame 20. Mounting plates 27 are installed at the upper right part and the lower right part of the mounting frame 20. A threaded groove 25 is opened in the middle of the right end of the fixing plate 21. Sliders 26 are installed at both the upper end and the lower end of the fixing plate 21. The fixing plate 21 is installed on the threaded rod 23 through the threaded groove 25. The front end of the fixing plate 21 is fixedly connected to the discharge pipe 7. The mounting frame 20 is installed at the rear end of the support base 4 through the two mounting plates 27. The mounting frame 20 is in a rectangular shape with a hollow center. The sliders 26 are located in the chute grooves 24. By driving the threaded rod 23 on it by the first servo motor 22 to rotate between the left inner wall and the right inner wall of the mounting frame 20, when the threaded rod 23 rotates, it will drive the fixing plate 21 on its outer surface. The fixing plate 21 will thus slide in the chute grooves 24 on the mounting frame 20 through the sliders 26 on it. And the fixing plate 21 is fixedly connected to the discharge pipe 7. Therefore, when the fixing plate 21 slides back and forth in the mounting frame 20, it will drive the discharge pipe 7 to move, so as to adjust the extending length of the discharge pipe 7 on the support base 4, and adjust the distance between the discharge pipe 7 and the grading wheel 32.

[0026] The driving device 3 includes a second servo motor 30. The output end of the second servo motor 30 is fixedly installed with a connecting block 31. A grading wheel 32 is installed at the left end of the connecting block 31. A first connecting groove 33 is opened at the left end of the grading wheel 32. The second servo motor 30 is installed at the right end of the fixed seat 6. An observation window 5 is also opened on the grading body 1, which just corresponds to the grading wheel 32, so that the staff can directly observe the adjusted distance between the discharge pipe 7 and the grading wheel 32.

[0027] A second connecting groove 40 is commonly penetrated through the left end and the right end of the support base 4; the first connecting groove 33 and the second connecting groove 40 have the same size and are corresponding to each other in the left-right position.

[0028] It should be noted that the present utility model is an adjustment structure for the grading and discharging device of an air classifier. When it is necessary to appropriately adjust the distance between the discharge pipe 7 and the grading wheel 32, the first servo motor 22 on the adjusting device 2 drives the threaded rod 23 thereon to rotate between the left inner wall and the right inner wall of the mounting frame 20. When the threaded rod 23 rotates, it will drive the fixing plate 21 on its outer surface. The fixing plate 21 then slides in the chute 24 on the mounting frame 20 through the slider 26 thereon. And the fixing plate 21 is fixedly connected to the discharge pipe 7. Therefore, when the fixing plate 21 slides back and forth in the mounting frame 20, it will drive the discharge pipe 7 to move, so as to adjust the protruding length of the discharge pipe 7 on the support base 4, and thus adjust the distance between the discharge pipe 7 and the grading wheel 32. By driving the threaded rod 23 with the first servo motor 22, compared with manually rotating the threaded rod 23, this method is not only more time-saving and labor-saving, improving the adjustment efficiency, but also an observation window 5 is provided on the grading body 1, which just corresponds to the grading wheel 32, enabling the staff to directly observe the adjusted distance between the discharge pipe 7 and the grading wheel 32, thereby improving the practicability of the device.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A jet mill grading discharger adjustment structure, comprising a grading body (1), characterized in that: The upper front end and the upper rear end of the grading body (1) are both fixedly installed with observation windows (5); the upper right end of the grading body (1) is fixedly installed with a fixing seat (6); the right end of the fixing seat (6) is installed with a driving device (3); the upper left end of the grading body (1) is fixedly installed with a supporting seat (4); the left end of the supporting seat (4) is movably installed with a discharge pipe (7); the rear end of the supporting seat (4) is fixedly installed with an adjusting device (2); and the upper end of the grading body (1) is installed with an upper cover (8).

2. The adjusting structure of the grading discharger of the air flow mill according to claim 1 is characterized in that: The adjusting device (2) comprises a mounting frame (20) and a fixing plate (21). A No. 1 servo motor (22) is mounted on the right end of the mounting frame (20). A threaded rod (23) is fixedly mounted on the output end of the No. 1 servo motor (22). The left end of the threaded rod (23) is rotatably connected to the mounting frame (20). A sliding groove (24) is provided on the upper inner wall and the lower inner wall of the mounting frame (20). A mounting plate (27) is mounted on the upper right part and the lower right part of the mounting frame (20). A threaded groove (25) is provided in the middle part of the right end of the fixing plate (21). Slide blocks (26) are mounted on the upper and lower ends of the fixing plate (21). The fixing plate (21) is mounted on the threaded rod (23) through the threaded groove (25). The front end of the fixing plate (21) is fixedly connected to the discharge pipe (7). The mounting frame (20) is mounted on the rear end of the support seat (4) through two mounting plates (27).

3. The adjusting structure of the grading discharger of the air flow mill according to claim 1 is characterized in that: The driving device (3) comprises a No. 2 servo motor (30), a connecting block (31) is fixedly mounted on the output end of the No. 2 servo motor (30), a grading wheel (32) is mounted on the left end of the connecting block (31), a No. 1 connecting groove (33) is formed on the left end of the grading wheel (32), and the No. 2 servo motor (30) is mounted on the right end of the fixing seat (6).

4. The adjusting structure of the grading discharger of the air flow mill according to claim 3 is characterized in that: The left and right ends of the support seat (4) are both penetrated by a second connection groove (40).

5. The adjusting structure of the grading discharger of the air flow mill according to claim 2, characterized in that: The mounting frame (20) is in the shape of a square, and the sliding block (26) is located in the sliding groove (24).

6. The adjusting structure of the grading discharger of the air flow mill according to claim 4, characterized in that: The first connecting groove (33) and the second connecting groove (40) have the same size and are located correspondingly on the left and right.

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