Crushing and screening device for iron powder production
By designing a pulverized screening device for iron powder production with the center protrusion and edge height gradually decreasing and a classified storage bearing assembly, the problem of low screening efficiency caused by large-grain iron powder accumulation in the prior art is solved, and more efficient iron powder screening and classified storage are achieved.
Patent Information
- Application Number
- CN202421569172.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-04
AI Technical Summary
In the existing iron powder production, the screening method leads to the accumulation of large-grain iron powder covering the screen, resulting in a decrease in the drop efficiency of small-grain iron powder and a slow screening speed.
A crushing and separating device for iron powder production is designed, including a screen assembly and a support assembly. The screen assembly is composed of a screen assembly with a center protrusion and a gradually decreasing edge height. The screen mesh number gradually increases, and the receiving component is used to classify and store iron powder different mesh numbers.
Through this device, large-grain iron powder cannot leak directly, and will leak when sliding along the slope of the screen assembly to a screen of a specified number of mesh, avoiding large-grain iron powder affecting the screening of small-grain iron powder, improving screening efficiency and avoiding blockage.
Smart Images
Figure CN222872646U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of iron powder production and screening, and more specifically to a crushing and screening device for iron powder production. Background Art
[0002] The crushing process in the iron powder production process plays an important role in increasing the surface area of the iron powder, meeting different application requirements and maintaining its purity.
[0003] During crushing, the iron powder needs to be refined to the required particle size range. Iron powders of different particle size ranges are mixed together inside the crushing device. The existing screening method is to arrange sieves of different mesh sizes from large to small and from top to bottom, and the iron filings are screened one by one. However, with this type of screening method, after a period of screening, large-particle iron powder accumulates on the top layer and covers part of the sieve holes, resulting in a gradual decrease in the falling efficiency of small-particle iron powder and a slow screening speed. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a crushing and screening device for iron powder production to solve the problems existing in the above-mentioned background technology.
[0005] The utility model provides the following technical solution: a crushing and screening device for iron powder production, comprising an upper cover, a material injection port is fixedly connected to the center of the top of the upper cover, a screening cylinder is fixedly connected to the bottom of the upper cover, a screening assembly is provided on the inner side of the screening cylinder, legs are provided on the outer side of the screening cylinder, a receiving assembly is clamped on the bottom of the screening assembly, an external fixing seat is movably sleeved on the outer side of the receiving assembly, a hydraulic mechanism is fixedly installed on the bottom of the external fixing seat, the screening assembly comprises a screen assembly, and the screen assembly comprises a first screen, a second screen, a third screen and a fourth screen.
[0006] Furthermore, the receiving assembly includes a fourth receiving box, both sides of the inner side of the fourth receiving box are fixedly connected to the limiting blocks, the third receiving box is arranged on the inner side of the limiting block of the fourth receiving box, both sides of the inner side of the third receiving box are fixedly connected to the limiting blocks, the second receiving box is arranged on the inner side of the limiting block of the third receiving box, both sides of the inner side of the second receiving box are fixedly connected to the limiting blocks, and the first receiving box is arranged on the inner side of the limiting block of the second receiving box.
[0007] Furthermore, the external fixing seat includes a seat body, and fixing blocks are fixedly connected to both sides of the seat body, and the fixing blocks are fixedly connected to the hydraulic rod of the hydraulic mechanism.
[0008] Furthermore, connecting rings are provided on the outer sides of the first sieve, the second sieve, the third sieve and the fourth sieve, and the bottoms of the first sieve connecting ring, the second sieve connecting ring, the third sieve connecting ring and the fourth sieve connecting ring are respectively fixedly connected with the first guide ring, the second guide ring, the third guide ring and the fourth guide ring.
[0009] Furthermore, the top shape of the screen assembly is a spherical surface, and the outer diameter of the screen assembly is matched with the inner diameter tolerance of the sub-screen cylinder.
[0010] Furthermore, the inner diameter of the seat body is matched with the outer diameter tolerance of the fourth receiving box, and the height of the inner side of the seat body is five centimeters smaller than the heights of the fourth receiving box, the third receiving box, the second receiving box and the first receiving box.
[0011] Furthermore, the thickness of the fourth receiving box limit block is the difference between the inner diameter of the fourth receiving box and the outer diameter of the third receiving box, the thickness of the third receiving box limit block is the difference between the inner diameter of the third receiving box and the outer diameter of the second receiving box, and the thickness of the second receiving box limit block is the difference between the inner diameter of the second receiving box and the outer diameter of the first receiving box.
[0012] Technical effects and advantages of the utility model:
[0013] 1. The utility model is provided with a sub-screening assembly. Since the screen assembly is shaped in a shape with a raised center and a gradually decreasing edge height, and the mesh sizes of the first screen, the second screen, the third screen and the fourth screen gradually increase, when the iron powder to be screened is injected into the sub-screening cylinder from the injection port, the large-size iron powder cannot leak through the first screen, and will slide down along the slope of the top of the screen assembly and leak out when it reaches the screen with a specified mesh size. The fourth screen has the largest mesh size and is at the outermost side. The large-size iron powder will not affect the screening of the small-size iron powder, and will not cause blockage, and the screening efficiency is higher.
[0014] 2. The utility model is provided with a receiving assembly and a screening assembly that cooperate with each other. Iron powder of different particle sizes falls from sieves of different mesh sizes. The first receiving box is at the bottom of the first sieve, the second receiving box is at the bottom of the second sieve, the third receiving box is at the bottom of the third sieve, and the fourth receiving box is at the bottom of the fourth sieve. The iron powder falling from the first sieve, the second sieve, the third sieve and the fourth sieve are collected respectively, and the fourth guide ring, the third guide ring, the second guide ring and the first guide ring guide them respectively to classify and store iron powder of different mesh sizes.
[0015] 3. The utility model is provided with an external fixed seat and a receiving assembly that cooperates with each other. The receiving assembly is clamped on the inner side of the seat body, and the fixed block cooperates with the hydraulic mechanism to drive it to rise or fall. When it rises to the top, the receiving assembly is just clamped on the inner side of the bottom of the screening assembly for sealing, thereby avoiding waste of iron powder when collecting iron powder. When it descends to the lowest point, the fourth receiving box, the third receiving box, the second receiving box and the first receiving box can be taken out respectively, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model.
[0017] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model.
[0018] Figure 3 This is a schematic diagram of the structure of the screening component of the utility model.
[0019] Figure 4 This is a schematic diagram of the structure of the screen assembly of the utility model.
[0020] Figure 5 It is a schematic diagram of the structure of the receiving component of the utility model.
[0021] Figure 6 It is a schematic diagram of the structure of the external fixing seat of the utility model.
[0022] The accompanying drawings are marked as follows: 1. upper cover; 2. injection port; 3. sub-screening cylinder; 4. sub-screening assembly; 401. screen assembly; 4011. first screen; 4012. second screen; 4013. third screen; 4014. fourth screen; 402. fourth guide ring; 403. third guide ring; 404. second guide ring; 405. first guide ring; 5. receiving assembly; 501. fourth receiving box; 502. third receiving box; 503. second receiving box; 504. first receiving box; 6. external fixing seat; 601. seat body; 602. fixing block; 7. hydraulic mechanism. DETAILED DESCRIPTION
[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The crushing and screening device for iron powder production involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.
[0024] Reference Figures 1 to 6The utility model provides a crushing and screening device for iron powder production, including an upper cover 1, a material injection port 2 is fixedly connected to the center of the top of the upper cover 1, a screening cylinder 3 is fixedly connected to the bottom of the upper cover 1, a screening assembly 4 is provided on the inner side of the screening cylinder 3, and a support leg is provided on the outer side of the screening cylinder 3. A receiving assembly 5 is clamped at the bottom of the screening assembly 4, an outer side of the receiving assembly 5 is movably sleeved with an external fixing seat 6, a hydraulic mechanism 7 is fixedly installed at the bottom of the external fixing seat 6, and the screening assembly 4 includes a screen assembly 401, and the screen assembly 401 includes a first screen 4011, a second screen 4012, a third screen 4013 and a fourth screen 4014.
[0025] In a preferred embodiment, the receiving assembly 5 includes a fourth receiving box 501, both sides of the inner side of the fourth receiving box 501 are fixedly connected to the limiting blocks, the third receiving box 502 is arranged on the inner side of the limiting block of the fourth receiving box 501, both sides of the inner side of the third receiving box 502 are fixedly connected to the limiting blocks, the second receiving box 503 is arranged on the inner side of the limiting block of the third receiving box 502, both sides of the inner side of the second receiving box 503 are fixedly connected to the limiting blocks, and the first receiving box 504 is arranged on the inner side of the limiting block of the second receiving box 503.
[0026] In a preferred embodiment, the external fixed seat 6 includes a seat body 601, and fixed blocks 602 are fixedly connected on both sides of the seat body 601, and the fixed blocks 602 are fixedly connected to the hydraulic rod of the hydraulic mechanism 7; the external fixed seat 6 cooperates with the receiving assembly 5, and the receiving assembly 5 is clamped on the inner side of the seat body 601, and the fixed block 602 cooperates with the hydraulic mechanism 7 to drive it to rise or fall. When it rises to the top, the receiving assembly 5 is just clamped to the inner side of the bottom of the screening assembly 4 for sealing, avoiding waste of iron powder when collecting iron powder. When it descends to the lowest point, the fourth receiving box 501, the third receiving box 502, the second receiving box 503 and the first receiving box 504 can be taken out respectively, which is more convenient to use.
[0027] In a preferred embodiment, the outer sides of the first sieve 4011, the outer sides of the second sieve 4012, the outer sides of the third sieve 4013 and the outer sides of the fourth sieve 4014 are all provided with connecting rings, and the bottoms of the connecting rings of the first sieve 4011, the second sieve 4012, the third sieve 4013 and the fourth sieve 4014 are respectively fixedly connected with the first guide ring 405, the second guide ring 404, the third guide ring 403 and the fourth guide ring 402;
[0028] Specifically, the first receiving box 504 is at the bottom of the first sieve 4011, the second receiving box 503 is at the bottom of the second sieve 4012, the third receiving box 502 is at the bottom of the third sieve 4013, and the fourth receiving box 501 is at the bottom of the fourth sieve 4014, respectively collecting iron powder falling from the first sieve 4011, the second sieve 4012, the third sieve 4013 and the fourth sieve 4014, wherein the fourth guide ring 402, the third guide ring 403, the second guide ring 404 and the first guide ring 405 are respectively It is guided to classify and store iron powder of different mesh sizes, the distance from the outside to the inside of the fourth receiving box 501 is the same as the distance from the inside of the fourth guide ring 402 to the outside of the third guide ring 403, the distance from the outside to the inside of the third receiving box 502 is the same as the distance from the inside of the third guide ring 403 to the outside of the second guide ring 404, the distance from the outside to the inside of the second receiving box 503 is the same as the distance from the inside of the second guide ring 404 to the outside of the first guide ring 405, and the outer diameter of the first receiving box 504 is the same as the inner diameter of the first guide ring 405.
[0029] In a preferred embodiment, the top shape of the screen assembly 401 is spherical, and the outer diameter of the screen assembly 401 is matched with the inner diameter tolerance of the sub-screen cylinder 3; since the screen assembly 401 is a shape with a central protrusion and a gradually decreasing edge height, and the mesh sizes of the first screen 4011, the second screen 4012, the third screen 4013 and the fourth screen 4014 gradually increase, when the iron powder to be screened is injected into the sub-screen cylinder 3 from the injection port 2, the large-particle iron powder cannot leak through the first screen 4011, and will slide down along the slope of the top of the screen assembly 401, and leak when it reaches the screen with a specified mesh size. The fourth screen 4014 has the largest mesh size and is at the outermost side. The large-particle iron powder will not affect the screening of the small-particle iron powder, and will not cause blockage, and the screening efficiency is higher.
[0030] In a preferred embodiment, the inner diameter of the seat body 601 is matched with the outer diameter tolerance of the fourth receiving box 501, and the height of the inner side of the seat body 601 is five centimeters smaller than the height of the fourth receiving box 501, the third receiving box 502, the second receiving box 503 and the first receiving box 504; the receiving component 5 is clamped on the inner side of the seat body 601, and the top of the receiving component 5 is not covered by the seat body 601, which is convenient for access.
[0031] In a preferred embodiment, the thickness of the limit block of the fourth receiving box 501 is the difference between the inner diameter of the fourth receiving box 501 and the outer diameter of the third receiving box 502, the thickness of the limit block of the third receiving box 502 is the difference between the inner diameter of the third receiving box 502 and the outer diameter of the second receiving box 503, and the thickness of the limit block of the second receiving box 503 is the difference between the inner diameter of the second receiving box 503 and the outer diameter of the first receiving box 504; ensure that the fourth receiving box 501, the third receiving box 502, the second receiving box 503 and the first receiving box 504 are just placed in the seat body 601.
[0032] The working principle of the utility model is as follows: the receiving assembly 5 is clamped on the inner side of the seat body 601, and the fixed block 602 cooperates with the hydraulic mechanism 7 to drive it to rise or fall, and when it rises to the top, the receiving assembly 5 is just clamped on the inner side of the bottom of the sub-screening assembly 4 for sealing. After sealing, the iron powder to be screened is injected into the sub-screening cylinder 3 from the injection port 2, wherein the iron powder injection amount is set according to the actual usage, and the injected iron powder is located at the top of the first screen 4011. Since the screen assembly 401 is a shape with a central protrusion and a gradually decreasing edge height, and the mesh numbers of the first screen 4011, the second screen 4012, the third screen 4013 and the fourth screen 4014 are gradually increased, when the iron powder to be screened is injected into the sub-screening cylinder 3 from the injection port 2, the large-sized iron powder cannot leak from the first screen 4011, and will slide down along the slope of the top of the screen assembly 401, and leak when it reaches the screen with a specified mesh number, and iron powders of different sizes are injected from different mesh numbers. The sieves fall, and the first receiving box 504 is at the bottom of the first sieve 4011, the second receiving box 503 is at the bottom of the second sieve 4012, the third receiving box 502 is at the bottom of the third sieve 4013, and the fourth receiving box 501 is at the bottom of the fourth sieve 4014, and the iron powder falling from the first sieve 4011, the second sieve 4012, the third sieve 4013 and the fourth sieve 4014 are collected respectively, wherein the fourth guide ring 402, the third guide ring 403, the second guide ring 404 and the first guide ring 405 guide them respectively, and classify and store iron powder of different mesh sizes. After the screening is completed, the hydraulic mechanism 7 is driven to control the fixed block 602 to descend to the lowest point, and the fourth receiving box 501, the third receiving box 502, the second receiving box 503 and the first receiving box 504 can be taken out respectively, and the iron powder can be taken and stored according to the particle size, and then the receiving components 5 are put back on the top of the seat body 601 one by one for next use.
[0033] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;
[0034] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;
[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A crushing and screening device for iron powder production, comprising an upper cover (1), a material injection port (2) is fixedly connected to the center of the top of the upper cover (1), and a screening cylinder (3) is fixedly connected to the bottom of the upper cover (1), characterized in that: A screening assembly (4) is provided on the inner side of the screening cylinder (3), and legs are provided on the outer side of the screening cylinder (3). A receiving assembly (5) is clamped on the bottom of the screening assembly (4), and an outer fixed seat (6) is movably sleeved on the outer side of the receiving assembly (5). A hydraulic mechanism (7) is fixedly installed on the bottom of the outer fixed seat (6). The screening assembly (4) comprises a screen assembly (401), and the screen assembly (401) comprises a first screen (4011), a second screen (4012), a third screen (4013) and a fourth screen (4014).
2. The pulverizing and screening device for iron powder production according to claim 1, characterized in that: The receiving assembly (5) comprises a fourth receiving box (501), both sides of the inner side of the fourth receiving box (501) are fixedly connected to limit blocks, a third receiving box (502) is arranged on the inner side of the limit block of the fourth receiving box (501), both sides of the inner side of the third receiving box (502) are fixedly connected to limit blocks, a second receiving box (503) is arranged on the inner side of the limit block of the third receiving box (502), both sides of the inner side of the second receiving box (503) are fixedly connected to limit blocks, and a first receiving box (504) is arranged on the inner side of the limit block of the second receiving box (503).
3. The pulverizing and screening device for iron powder production according to claim 2, characterized in that: The external fixing seat (6) comprises a seat body (601), and fixing blocks (602) are fixedly connected to both sides of the seat body (601), and the fixing blocks (602) are fixedly connected to the hydraulic rod of the hydraulic mechanism (7).
4. The pulverizing and screening device for iron powder production according to claim 1, characterized in that: Connecting rings are provided on the outside of the first sieve (4011), the outside of the second sieve (4012), the outside of the third sieve (4013) and the outside of the fourth sieve (4014); the bottoms of the connecting rings of the first sieve (4011), the second sieve (4012), the third sieve (4013) and the fourth sieve (4014) are fixedly connected with a first guide ring (405), a second guide ring (404), a third guide ring (403) and a fourth guide ring (402) respectively.
5. The pulverizing and screening device for iron powder production according to claim 1, characterized in that: The top of the screen assembly (401) is spherical in shape, and the outer diameter of the screen assembly (401) is matched with the inner diameter tolerance of the sub-screen cylinder (3).
6. The crushing and screening device for iron powder production according to claim 3, characterized in that: The inner diameter of the seat body (601) matches the outer diameter tolerance of the fourth receiving box (501), and the height of the inner side of the seat body (601) is five centimeters smaller than the heights of the fourth receiving box (501), the third receiving box (502), the second receiving box (503) and the first receiving box (504).
7. The pulverizing and screening device for iron powder production according to claim 2, characterized in that: The thickness of the limiting block of the fourth receiving box (501) is the difference between the inner diameter of the fourth receiving box (501) and the outer diameter of the third receiving box (502), the thickness of the limiting block of the third receiving box (502) is the difference between the inner diameter of the third receiving box (502) and the outer diameter of the second receiving box (503), and the thickness of the limiting block of the second receiving box (503) is the difference between the inner diameter of the second receiving box (503) and the outer diameter of the first receiving box (504).