Efficient grading wheel of jet mill

Abstract

The utility model discloses an efficient grading wheel of a jet mill, and relates to the technical field of jet mills. The lower impeller comprises a lower impeller seat, a fastening assembly and a plurality of groups of blades, a plurality of slots are uniformly distributed on the upper surface of the lower impeller seat, and the bottom ends of the plurality of groups of blades are fixedly connected with a bayonet socket. By arranging the fastening assembly, when the blades are installed, the bayonet sockets at the bottom ends of the blades are inserted into the inserting grooves of the lower impeller base and matched with the inserting blocks in an inserted mode, the handle is rotated, the limiting blocks are driven to rotate through the linkage rods, the limiting blocks rotate to push the fastening blocks to slide on the connecting rods and extrude the matched springs, and one side faces of the fastening blocks abut against the bayonet sockets; meanwhile, a clamping groove in the limiting block is matched with a clamping block buckle, so that the limiting block is fixed, and the blade is clamped and fixed; and when the blade needs to be disassembled, the handle is rotated, limitation of the limiting block on the fastening block is relieved, the fastening block is made to be far away from the bayonet socket under the action of cooperation with the spring, and then the blade can be taken down.

Description

Technical Field

[0001] The utility model belongs to the technical field of air jet mills, and particularly relates to an efficient classification wheel for an air jet mill. Background Technique

[0002] The crushing mechanism mainly applicable to the air jet mill determines its wide application range and high fineness of the finished product. Among them, when the classification wheel works, under the action of centrifugal force, large or heavy particles are affected by a large centrifugal force, so they are thrown to the periphery of the classification wheel to the side wall of the classification area and are no longer affected by the centrifugal force, and naturally fall into the mill for further crushing; small or light materials are affected by a small centrifugal force, enter the classification wheel with the air flow, and flow along the pipeline to the next equipment unit. By adjusting the rotation speed of the classification wheel, the magnitude of the centrifugal force during particle classification can be adjusted to achieve the purpose of separating materials with a specified particle size.

[0003] At present, after the classification wheel is used for a long time, some structures will be worn or damaged. Most of the existing classification wheels are integrally welded and fixed. Although there are classification wheels that can replace the worn blades, most of them are fixed by screws and nuts. The screws and nuts are arranged inside the blades, and there is still the situation of inconvenient disassembly, and the replacement or repair of the worn blades cannot be realized efficiently, which affects the processing efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an efficient classification wheel for an air jet mill, and solve the problem that most of the existing classification wheels are fixed by screws and nuts, the screws and nuts are arranged inside the blades, there is the situation of inconvenient disassembly, and the replacement or repair of the worn blades cannot be realized efficiently, which affects the processing efficiency.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is an efficient classification wheel for an air jet mill, which includes a lower impeller seat, a fastening assembly and blades. A plurality of slots are evenly distributed on the upper surface of the lower impeller seat. There are multiple groups of blades, and the bottom ends of the multiple groups of blades are fixedly connected with insertion seats. The insertion seats are arranged in the slots and are in plug-in fit with them. Multiple groups of slots are evenly distributed on the circumferential side of the lower impeller seat. The slots are communicated with the slots. The fastening assembly includes a fastening block. One side of the inner bottom surface of the slot is fixedly connected with an insertion block. One end of the insertion block is arranged in the insertion seat and is in plug-in fit with it. A connecting rod is fixedly connected between one side surface of the insertion block and the inner wall of the slot. The fastening block is arranged on the periphery of the connecting rod and is in sliding fit with it. One side surface of the fastening block is attached to one side surface of the insertion seat.

[0007] One side of the inner wall of the slot is rotatably connected with a linkage rod. A limiting block is fixedly connected to the circumferential side of the linkage rod. One end of the limiting block is in contact with the other side surface of the fastening block. A clamping groove is formed on the surface of the other end of the limiting block. A clamping block is fixedly connected to the inner wall of the slot on the side away from the insertion block. The clamping block is in clamping fit with the clamping groove.

[0008] One side surface of the fastening block is fixedly connected with a matching spring. The matching spring is arranged on the circumferential side of the connecting rod and is in sliding fit with it. One end of the matching spring is fixedly connected with one side surface of the insertion block.

[0009] One end of the linkage rod is fixedly connected with a handle. The handle is arranged outside the lower impeller seat.

[0010] The top end of the blade is fixedly connected with a matching block. A fixing rod is fixedly connected to the central position of the upper surface of the lower impeller seat. The top end of the fixing rod is fixedly connected with a threaded rod. The upper impeller seat is arranged on the circumferential side of the threaded rod. The bottom of the upper impeller seat is in snap fit with the matching block. A fastening nut is threadedly connected to the circumferential side of the threaded rod. The bottom surface of the fastening nut is in contact with the upper surface of the upper impeller seat.

[0011] The bottom surface of the lower impeller seat is fixedly connected with a driving rod.

[0012] The utility model has the following beneficial effects:

[0013] By setting the fastening assembly in the utility model, when installing the blade, the insertion seat at the bottom end of the blade is inserted into the slot of the lower impeller seat and is in insertion fit with the insertion block. Then, the handle is rotated. The limiting block is driven to rotate by the linkage rod. The limiting block rotates to push the fastening block to slide on the connecting rod and compress the matching spring. The matching spring deforms, so that one side surface of the fastening block abuts against the insertion seat to fix the insertion seat. At the same time, the clamping groove on the limiting block is in snap fit with the clamping block to fix the limiting block, thereby clamping and fixing the blade. The upper impeller seat is snap-connected with the matching block at the top end of the blade, and the threaded rod passes through the upper impeller seat. Then, the upper impeller seat is fixed by using the fastening nut to further fix the blade, and the installation of the blade is completed. When the blade needs to be disassembled, the fastening nut is rotated and removed, then the upper impeller seat is removed, and then the handle is rotated to release the restriction of the limiting block on the fastening block. Under the action of the matching spring, the fastening block moves away from the insertion seat, and thus the blade can be removed.

[0014] Of course, when implementing any product of the utility model, it is not necessarily required to achieve all the above advantages simultaneously. Description of the Drawings

[0015] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached 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 attached drawings can also be obtained based on these attached drawings.

[0016] Figure 1 Schematic diagram of the three-dimensional assembly structure of the present utility model;

[0017] Figure 2 Front view of the structure of the present utility model;

[0018] Figure 3 is Figure 2 Schematic diagram of the A-A cross-sectional structure in;

[0019] Figure 4 is Figure 3 Enlarged view of area B in.

[0020] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0021] 1. Lower impeller seat; 101. Fixed rod; 102. Upper impeller seat; 103. Threaded rod; 104. Locknut; 105. Driving rod; 106. Groove; 2. Fastening assembly; 201. Handle; 202. Linking rod; 203. Limiting block; 204. Block; 205. Fastening block; 206. Connecting rod; 207. Cooperating spring; 208. Insert block; 3. Blade; 301. Fitting block; 302. Socket. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some, rather than all, embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating orientation or positional relationships are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" 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 components. 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.

[0025] Please refer to Figures 1-4 As shown, the present utility model is an efficient classification wheel for an air classifier, which includes a lower impeller seat 1, a fastening assembly 2, and blades 3. A plurality of slots are evenly distributed on the upper surface of the lower impeller seat 1. There are multiple groups of blades 3, and the bottom ends of the multiple groups of blades 3 are fixedly connected with socket joints 302. The socket joints 302 are arranged in the slots and are in plug-in fit with them. A plurality of slots 106 are evenly distributed on the circumferential side of the lower impeller seat 1, and the slots 106 communicate with the slots. The fastening assembly 2 includes a fastening block 205. One side of the inner bottom surface of the slot 106 is fixedly connected with a plug 208. One end of the plug 208 is arranged in the socket joint 302 and is in plug-in fit with it. A connecting rod 206 is fixedly connected between one side surface of the plug 208 and the inner wall of the slot 106. The fastening block 205 is arranged on the periphery of the connecting rod 206 and is in sliding fit with it. One side surface of the fastening block 205 is in contact with one side surface of the socket joint 302.

[0026] One side of the inner wall of the slot 106 is rotatably connected with a linkage rod 202. A limiting block 203 is fixedly connected to the periphery of the linkage rod 202. One end of the limiting block 203 is in contact with the other side surface of the fastening block 205. A clamping groove is formed on the surface of the other end of the limiting block 203. A clamping block 204 is fixedly connected to the inner wall of the slot 106 far away from the plug 208, and the clamping block 204 is in clamping fit with the clamping groove.

[0027] One side surface of the fastening block 205 is fixedly connected with a matching spring 207. The matching spring 207 is arranged on the periphery of the connecting rod 206 and is in sliding fit with it. One end of the matching spring 207 is fixedly connected with one side surface of the plug 208.

[0028] One end of the linkage rod 202 is fixedly connected with a handle 201, and the handle 201 is arranged outside the lower impeller seat 1.

[0029] A mating block 301 is fixedly connected to the top end of the blade 3. A fixing rod 101 is fixedly connected to the center position of the upper surface of the lower impeller seat 1. A threaded rod 103 is fixedly connected to the top end of the fixing rod 101. An upper impeller seat 102 is arranged on the circumferential side of the threaded rod 103. The bottom of the upper impeller seat 102 is snap-fitted with the mating block 301. A fastening nut 104 is threadedly connected to the circumferential side of the threaded rod 103. The bottom surface of the fastening nut 104 is in contact with the upper surface of the upper impeller seat 102.

[0030] A driving rod 105 is fixedly connected to the bottom surface of the lower impeller seat 1.

[0031] It should be noted that when installing the blade 3, insert the socket 302 at the bottom end of the blade 3 into the slot of the lower impeller seat 1 and plug it with the insert block 208. Then rotate the handle 201, drive the limiting block 203 to rotate through the linkage rod 202. The limiting block 203 rotates to push the fastening block 205 to slide on the connecting rod 206 and compress the mating spring 207. The mating spring 207 deforms, so that one side surface of the fastening block 205 abuts against the socket 302 to fix the socket 302. At the same time, the card slot on the limiting block 203 is snap-fitted with the card block 204 to fix the limiting block 203, thereby clamping and fixing the blade 3. Connect the upper impeller seat 102 with the mating block 301 at the top end of the blade 3, and make the threaded rod 103 pass through the upper impeller seat 102. Then use the fastening nut 104 to fix the upper impeller seat 102 to further fix the blade 3, completing the installation of the blade 3; when it is necessary to disassemble the blade 3, rotate and remove the fastening nut 104, then remove the upper impeller seat 102, and then rotate the handle 201 to release the restriction of the limiting block 203 on the fastening block 205. Under the action of the mating spring 207, the fastening block 205 is separated from the socket 302, and then the blade 3 can be removed.

[0032] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An efficient classifier wheel for an air jet mill, comprising a lower impeller seat (1), a fastening assembly (2) and blades (3), characterized in that: The upper surface of the lower impeller seat (1) is evenly distributed with a number of slots. There are multiple groups of blades (3), and the bottom ends of the multiple groups of blades (3) are fixedly connected with socket joints (302). The socket joints (302) are arranged in the slots and are in plug-in fit with them. The circumferential side surface of the lower impeller seat (1) is evenly distributed with multiple groups of slots (106), and the slots (106) are communicated with the slots. The fastening assembly (2) includes a fastening block (205). One side of the inner bottom surface of the slot (106) is fixedly connected with a plug block (208). One end of the plug block (208) is arranged in the socket joint (302) and is in plug-in fit with it. A connecting rod (206) is fixedly connected between one side surface of the plug block (208) and the inner wall of the slot (106). The fastening block (205) is arranged on the periphery of the connecting rod (206) and is in sliding fit with it. One side surface of the fastening block (205) is in contact with one side surface of the socket joint (302).

2. The high-efficiency classification wheel of an airflow pulverizer according to claim 1, characterized in that, One side of the inner wall of the slot (106) is rotatably connected with a linkage rod (202). A limiting block (203) is fixedly connected to the periphery of the linkage rod (202). One end of the limiting block (203) is in contact with the other side surface of the fastening block (205). A clamping groove is formed on the surface of the other end of the limiting block (203). A clamping block (204) is fixedly connected to the inner wall of the slot (106) away from the plug block (208). The clamping block (204) is in clamping fit with the clamping groove.

3. The high-efficiency classifier wheel of an air classifier mill according to claim 2, wherein One side surface of the fastening block (205) is fixedly connected with a matching spring (207). The matching spring (207) is arranged on the periphery of the connecting rod (206) and is in sliding fit with it. One end of the matching spring (207) is fixedly connected to one side surface of the plug block (208).

4. The high-efficiency classification wheel of an air jet mill according to claim 3, characterized in that, One end of the linkage rod (202) is fixedly connected with a handle (201). The handle (201) is arranged outside the lower impeller seat (1).

5. The high-efficiency classification wheel of an airflow crusher according to claim 4, characterized in that, The top end of the blade (3) is fixedly connected with a matching block (301). A fixed rod (101) is fixedly connected to the central position of the upper surface of the lower impeller seat (1). A threaded rod (103) is fixedly connected to the top end of the fixed rod (101). An upper impeller seat (102) is arranged on the periphery of the threaded rod (103). The bottom of the upper impeller seat (102) is in snap fit with the matching block (301). A fastening nut (104) is threadedly connected to the periphery of the threaded rod (103). The bottom surface of the fastening nut (104) is in contact with the upper surface of the upper impeller seat (102).

6. The high-efficiency classifier wheel of an air classifier mill according to claim 5, characterized in that A driving rod (105) is fixedly connected to the bottom surface of the lower impeller seat (1).

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