Large-particle iron powder ball screening and crushing mechanism

Abstract

The utility model relates to the technical field of crushing devices, and particularly discloses a large-particle iron powder ball screening and crushing mechanism which comprises a crushing box and a screening plate, a feeding port is formed in the top of the crushing box, a discharging port is formed in the bottom of the crushing box, and a crushing mechanism is arranged in the crushing box; the screening plate is connected to the bottom of the crushing box in a sliding mode, and a driving mechanism used for driving the screening plate to reciprocate is arranged on the crushing box. The device has the effect of solving the problems that manual iron powder ball knocking needs continuous operation of workers, time and labor are wasted, and the labor intensity of the workers is increased.

Description

Technical Field

[0001] This application relates to the field of crushing equipment technology, and in particular to a screening and crushing mechanism for large iron powder agglomerates. Background Technology

[0002] Oxidized pelletizing is one of the important methods for agglomerating iron powder. First, the iron powder is mixed with an appropriate amount of water and binder to form green pellets with uniform viscosity and sufficient strength. After drying and preheating, the green pellets are roasted in an oxidizing atmosphere to agglomerate, thereby producing iron powder pellets.

[0003] After the iron powder clumps are processed, they usually need to be sieved to separate out iron powder clumps with uniform particle size. During the sieving process, the size of the sieve openings on the sieve body is fixed. Larger iron powder clumps tend to accumulate at the top of the sieve body, easily causing blockage and affecting sieving efficiency. A common method to deal with this is to manually crush the iron powder clumps by tapping them, thereby preventing large iron powder clumps from clogging the sieve body.

[0004] While manual hammering can break up larger clumps of iron powder to some extent, it requires continuous work by workers, which is time-consuming and labor-intensive, increasing their workload. Utility Model Content

[0005] To address the problem that manually striking iron powder lumps requires continuous work by workers, which is time-consuming, labor-intensive, and increases the workers' workload, this application provides a screening and crushing mechanism for large iron powder lumps.

[0006] The large-particle iron powder sieving and crushing mechanism provided in this application adopts the following technical solution:

[0007] A large-particle iron powder shredding and crushing mechanism includes a crushing box and a screening plate. The crushing box has a feed inlet at the top and a discharge outlet at the bottom. A crushing mechanism is provided inside the crushing box. The screening plate is slidably connected to the bottom of the crushing box, and a driving mechanism for driving the screening plate to reciprocate is provided on the crushing box.

[0008] By adopting the above technical solution, large iron powder lumps enter the crushing chamber through the feed inlet, where the crushing mechanism performs preliminary crushing. Subsequently, the drive mechanism starts, causing the screening plate to reciprocate at the bottom of the crushing chamber. This allows the pre-crushed iron powder lumps to move continuously on the screening plate and be further crushed. Iron powder that meets the particle size requirements is discharged through the screen holes of the screening plate, while iron powder lumps that do not meet the requirements continue to be crushed on the screening plate until they meet the requirements and are discharged from the outlet. The entire process is highly automated, improving upon the problem of manual hammering of iron powder lumps, which requires continuous work by workers, is time-consuming and labor-intensive, and increases the labor intensity of workers.

[0009] Optionally, the crushing mechanism includes a fixed plate, a sliding seat, a pressure plate, and a swing assembly. The fixed plate is vertically disposed inside the crushing box, and the sliding seat is slidably connected to the crushing box in a horizontal direction. The crushing box is provided with a moving assembly for driving the sliding seat to move closer to or away from the fixed plate. The bottom of the pressure plate is rotatably connected to the sliding seat in a horizontal direction, and the sliding seat is provided with a swing assembly for driving the pressure plate to swing back and forth.

[0010] By adopting the above technical solution, the bottom of the pressure plate is rotatably connected to the sliding seat, and is driven to swing back and forth by the swing component, so that the pressure plate periodically moves closer to and away from the fixed plate, thereby squeezing and crushing the material placed between the fixed plate and the pressure plate, and the material that meets the required size falls through the gap between the two; the cooperative arrangement of the sliding seat and the moving component makes the size of the falling material controllable, improving the fineness of the screened material.

[0011] Optionally, the moving component includes a guide rod, a threaded rod, and a rotating handle. The guide rod and the threaded rod are both disposed on the crushing box along the sliding direction of the sliding seat and pass through the sliding seat. The threaded rod is rotatably connected to the crushing box around its own axis. The threaded rod is threadedly connected to the sliding seat. The rotating handle is disposed at one end of the threaded rod.

[0012] By adopting the above technical solution, the threaded connection between the threaded rod and the sliding seat, combined with the use of the handle, allows the operator to precisely adjust the position of the sliding seat by manually rotating the handle, ensuring that the sliding seat moves stably in the predetermined direction and avoiding deviation during movement. This controls the distance between the pressure plate and the fixed plate, enabling effective crushing of iron powder clumps of different sizes. The structure is simple and reliable, and easy to manufacture and maintain.

[0013] Optionally, the threaded rod is provided with scale lines.

[0014] By adopting the above technical solution, the scale line setting can intuitively display the moving distance of the threaded rod, thereby accurately controlling the position of the sliding seat relative to the fixed plate and improving the controllability and consistency of the crushing effect.

[0015] Optionally, the swing assembly includes a rotating motor, a rotating rod, a first connecting rod, and a second connecting rod. The rotating rod is rotatably connected to the sliding seat about a transverse direction. One end of the first connecting rod is fixedly connected to the rotating rod, and the other end of the first connecting rod is hinged to one end of the second connecting rod. The other end of the second connecting rod is hinged to the pressure plate. The rotating motor is mounted on the sliding seat, and the rotating shaft of the rotating motor is connected to the rotating rod.

[0016] By adopting the above technical solution, the rotating motor drives the rotating rod to rotate, and the cooperation of the first and second connecting rods converts the rotational motion into the swinging motion of the pressure plate. This design can effectively increase the crushing effect of the pressure plate on the iron powder clumps, ensuring that the crushing process is more uniform and thorough. At the same time, the structure is simple and reliable, easy to maintain and adjust, and improves the overall performance of the equipment.

[0017] Optionally, the driving mechanism includes a sector gear, a rack, an elastic element, and a driving component. The rack is connected to the screening plate, the sector gear is rotatably connected to the crushing box, and the sector gear meshes with the rack. One end of the elastic element is connected to the screening plate, and the other end of the elastic element is connected to the crushing box. The driving component is used to drive the sector gear to rotate.

[0018] By adopting the above technical solution, the meshing relationship between the sector gear and the rack enables the drive component to drive the sector gear to rotate, which in turn drives the screening plate to move back and forth along the bottom of the crushing box. The elastic element provides a reset force during the movement of the screening plate, ensuring the stable reciprocating motion of the screening plate, thereby improving screening efficiency and effect. This solution realizes automated screening function through a simple mechanical structure, improving the reliability and ease of operation of the equipment.

[0019] Optionally, the driving component includes a driving wheel, a driven wheel, and a timing belt. The driving wheel is coaxially connected to a rotating rod, the driven wheel is coaxially connected to a sector gear, and the timing belt is wound around the driving wheel and the driven wheel. The timing belt is made of an elastic material.

[0020] By adopting the above technical solution, the synchronous belt connects the driving pulley and the driven pulley, realizing the power transmission between the rotating rod and the sector gear. The synchronous belt made of elastic material can effectively absorb the vibration and impact during the transmission process, improving the stability and reliability of the transmission system. In addition, by setting the drive component to a structure that includes the driving pulley, the driven pulley and the elastic synchronous belt, no additional power source is required, saving power costs.

[0021] Optionally, the fixing plate and the pressure plate are each provided with a pressure-bearing and wear-resistant block on one side close to each other.

[0022] By adopting the above technical solution, pressure-bearing wear-resistant blocks are installed on both the fixed plate and the pressure plate on their adjacent sides, which can effectively improve the wear resistance of both during long-term use and extend their service life. Combined with the overall design of the crushing mechanism, the installation of pressure-bearing wear-resistant blocks can also ensure a stable crushing effect when crushing large iron powder clumps, reducing the problem of decreased crushing efficiency due to wear.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. After large iron powder lumps enter the crushing box through the feed inlet, the crushing mechanism crushes the iron powder lumps. Then, the drive mechanism drives the screening plate to reciprocate at the bottom of the crushing box, so that the iron powder that meets the particle size requirements is discharged through the screen holes of the screening plate. The iron powder lumps that do not meet the requirements continue to be crushed on the screening plate until they meet the requirements and are discharged from the outlet. The whole process is highly automated, which improves the problem that manual knocking of iron powder lumps requires workers to work continuously, which is time-consuming and labor-intensive and increases the labor intensity of workers.

[0025] 2. Rotating the handle drives the threaded rod to move the sliding seat, thereby adjusting the minimum distance between the pressure plate and the fixed plate, making the size of the falling material controllable and improving the fineness of the screened material;

[0026] 3. The meshing relationship between the sector gear and the rack, combined with the setting of the elastic element, enables the drive component to drive the sector gear to rotate, thereby driving the screening plate to move back and forth along the bottom of the crushing box, improving screening efficiency and effect. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0029] Figure 2 This is a cross-sectional structural diagram of an embodiment of this application;

[0030] Figure 3 yes Figure 1 A magnified view of part A in the diagram.

[0031] Reference numerals: 1. Crushing box; 11. Feed inlet; 12. Discharge outlet; 13. First chute; 14. Second chute; 2. Screening plate; 3. Crushing mechanism; 31. Fixed plate; 32. Sliding seat; 33. Pressure plate; 34. Rotating motor; 35. Rotating rod; 36. First connecting rod; 37. Second connecting rod; 38. Guide rod; 39. Threaded rod; 391. Rotating handle; 4. Drive mechanism; 41. Sector gear; 42. Rack; 43. Elastic component; 44. Driving wheel; 45. Driven wheel; 46. Synchronous belt; 5. Pressure-bearing wear-resistant block. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0033] This application discloses a screening and crushing mechanism for large iron powder agglomerates. (Refer to...) Figure 1 The large-particle iron powder shredding and crushing mechanism includes a crushing box 1, a screening plate 2, and a crushing mechanism 3. The crushing box 1 has a feed inlet 11 at the top and a discharge outlet 12 at the bottom. The crushing mechanism 3 is located inside the crushing box 1 and is used to crush the material. A first sliding groove 13 is transversely formed on the side wall of the crushing box 1. The screening plate 2 is slidably engaged within the first sliding groove 13 of the crushing box 1, and the crushing box 1 is equipped with a drive mechanism 4 for driving the screening plate 2 to reciprocate.

[0034] In operation, large iron powder lumps enter the crushing chamber 1 through the feed inlet 11 and are crushed by the crushing mechanism 3. The crushed material falls onto the screening plate 2, which is then driven by the drive mechanism 4 to reciprocate. This allows material of suitable particle size to pass through the screening plate 2 and be discharged, while material that does not meet the size requirements continues to be crushed on the screening plate 2 until it meets the requirements and is discharged from the discharge outlet 12. This achieves efficient crushing and simultaneous screening, solving the problems of low crushing efficiency and incomplete screening in existing technologies, while also avoiding material jamming and clogging of the screening plate 2. The entire process is highly automated, improving upon the problem of manual crushing of iron powder lumps, which requires continuous work by workers, is time-consuming and labor-intensive, and increases the labor intensity of workers.

[0035] Specifically, refer to Figure 1-2 The crushing mechanism 3 includes a fixed plate 31, a sliding seat 32, a pressure plate 33, and a swing assembly. The fixed plate 31 is vertically disposed inside the crushing box 1. A second sliding groove 14 is provided horizontally on the upper edge of the crushing box 1. The sliding seat 32 is slidably engaged in the second sliding groove 14 of the crushing box 1. The crushing box 1 is provided with a moving assembly for driving the sliding seat 32 to move closer to or away from the fixed plate 31. The bottom of the pressure plate 33 is rotatably connected to the sliding seat 32 about horizontally. The rotation axis of the pressure plate 33 is perpendicular to the sliding direction of the sliding seat 32. The sliding seat 32 is provided with a swing assembly for driving the pressure plate 33 to swing back and forth.

[0036] The oscillating component drives the pressure plate 33 to oscillate reciprocally, causing it to periodically move closer to and further away from the fixed plate 31. This compresses the material placed between the fixed plate 31 and the pressure plate 33, gradually breaking up the iron powder clumps. Material of the required size falls through the gap between the two plates. Simultaneously, the sliding seat 32 and the moving component are designed to adjust the minimum distance between the fixed plate 31 and the pressure plate 33, allowing for precise control of the size of the crushed material and improving the fineness of material screening.

[0037] Furthermore, in order to improve the service life of the fixing plate 31 and the pressure plate 33, pressure-bearing wear-resistant blocks 5 are provided on the side of the fixing plate 31 and the pressure plate 33 that are close to each other. The pressure-bearing wear-resistant blocks 5 replace the fixing plate 31 and the pressure plate 33 in contact with the material, thereby reducing the frictional damage of the material to the fixing plate 31 and the pressure plate 33.

[0038] For example, the swing assembly includes a rotary motor 34, a rotating rod 35, a first connecting rod 36, and a second connecting rod 37. The rotating rod 35 is rotatably connected to the sliding seat 32 about a transverse direction, and the length direction of the rotating rod 35 is parallel to the rotation axis of the pressure plate 33. One end of the first connecting rod 36 is perpendicularly connected to the rotating rod 35, and the other end of the first connecting rod 36 is rotatably connected to one end of the second connecting rod 37. The other end of the second connecting rod 37 is rotatably connected to the side of the pressure plate 33 opposite to the fixed plate 31. The rotary motor 34 is fixedly mounted on the sliding seat 32, and the rotation shaft of the rotary motor 34 is coaxially connected to the rotating rod 35.

[0039] By starting the rotating motor 34 to drive the rotating rod 35 to rotate, the first connecting rod 36 will rotate around the axis of the rotating rod 35, thereby causing the second connecting rod 37 to swing, which in turn causes the pressure plate 33 to reciprocate. This design can effectively increase the gradual crushing effect of the pressure plate 33 on the iron powder clumps, ensuring a more uniform and thorough crushing process. Moreover, the structure is simple and reliable, easy to maintain and adjust, and improves the overall performance of the equipment.

[0040] Furthermore, refer to Figure 2-3 The drive mechanism 4 includes a sector gear 41, a rack 42, a spring element 43, and a drive component. The rack 42 is fixedly connected to the screen plate 2 along the sliding direction of the screen plate 2. The sector gear 41 is rotatably connected to the crushing box 1, and the teeth on the sector gear 41 can mesh with the rack 42 during rotation. The drive component is used to drive the sector gear 41 to rotate. The spring element 43 is a return spring, one end of which is connected to the screen plate 2, and the other end of which is connected to the inner wall of the first slide groove 13 of the crushing box 1.

[0041] When the drive component drives the sector gear 41 to rotate continuously, the teeth of the sector gear 41 mesh with the rack 42, which drives the screen plate 2 to move. When the teeth of the sector gear 41 no longer mesh with the rack 42, the screen plate 2 can be reset under the elastic force of the return spring. The continuous rotation of the sector gear 41 can drive the screen plate 2 to move back and forth, realizing the automated screening function and improving the reliability and ease of operation of the equipment.

[0042] Furthermore, the drive components include a drive pulley 44, a driven pulley 45, and a timing belt 46. The drive pulley 44 is coaxially connected to the rotating rod 35, and the driven pulley 45 is coaxially connected to the sector gear 41. The timing belt 46 is wound around the drive pulley 44 and the driven pulley 45, and the timing belt 46 is made of an elastic material. The rotating rod 35 rotates under the drive of the rotating motor 34. Through the transmission of the drive pulley 44, the driven pulley 45, and the timing belt 46, the timing belt 46 drives the sector gear to rotate. The structure is compact and does not require an additional power source, saving costs.

[0043] Specifically, the moving assembly includes a guide rod 38, a threaded rod 39, and a handle 391. Both the guide rod 38 and the threaded rod 39 are mounted on the crushing chamber 1 along the sliding direction of the sliding seat 32 and pass through the sliding seat 32. The threaded rod 39 is rotatably connected to the crushing chamber 1 around its own axis and is threadedly connected to the sliding seat 32. The handle 391 is located at one end of the threaded rod 39. By rotating the handle 391, the position of the sliding seat 32 can be adjusted, thereby controlling the distance between the pressure plate 33 and the fixed plate 31. Simultaneously, the sliding seat 32 is driven to move by the threaded connection between the threaded rod 39 and the sliding seat 32. Utilizing the self-locking characteristic of the threaded connection, the sliding seat 32 can move more stably and lock itself, thus achieving precise control over the size of the crushed material. Furthermore, to improve adjustment accuracy, the threaded rod 39 is equipped with scale lines, allowing the operator to precisely adjust the position of the sliding seat 32 as needed.

[0044] The implementation principle of the large-particle iron powder shredding and crushing mechanism in this application embodiment is as follows: During use, the material is fed into the space between the fixed plate 31 and the pressure plate 33 through the feed port 11. Then, the rotating motor 34 is started to drive the rotating rod 35 to rotate, which in turn drives the first connecting rod 36 to rotate and the second connecting rod 37 to swing, thereby synchronously driving the pressure plate 33 to swing. This causes the pressure plate 33 to periodically move closer to and further away from the fixed plate 31, thereby squeezing the material placed between the fixed plate 31 and the pressure plate 33, thus gradually crushing the iron powder lumps. The material that meets the size requirements falls through the gap between the fixed plate 31 and the pressure plate 33 onto the sieve. Simultaneously, when the rotating rod 35 rotates, it drives the sector gear 41 to rotate under the transmission of the driving wheel 44, driven wheel 45, and synchronous belt 46. When the teeth of the sector gear 41 mesh with the rack 42, it drives the screen plate 2 to move. When the teeth of the sector gear 41 no longer mesh with the rack 42, the screen plate 2 can be reset under the elastic force of the return spring. The continuous rotation of the sector gear 41 drives the screen plate 2 to reciprocate, realizing the automated screening of materials. The screening and crushing mechanism of this application can realize the automated crushing and screening of iron powder lumps, improving the problem that manual knocking of iron powder lumps requires continuous operation by workers, which is time-consuming and labor-intensive, increasing the labor intensity of workers.

[0045] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A large particle iron powder mass sieve crushing mechanism, characterized by: It includes a crushing box (1) and a screening plate (2). The crushing box (1) has a feed inlet (11) at the top and a discharge outlet (12) at the bottom. The crushing box (1) is equipped with a crushing mechanism (3). The screening plate (2) is slidably connected to the bottom of the crushing box (1). The crushing box (1) is equipped with a driving mechanism (4) for driving the screening plate (2) to reciprocate.

2. A large particle iron powder lump sieve crushing mechanism according to claim 1, characterized in that: The crushing mechanism (3) includes a fixed plate (31), a sliding seat (32), a pressure plate (33), and a swinging assembly. The fixed plate (31) is vertically disposed inside the crushing box (1). The sliding seat (32) is slidably connected to the crushing box (1) in the horizontal direction. The crushing box (1) is provided with a moving assembly for driving the sliding seat (32) to move closer to or away from the fixed plate (31). The bottom of the pressure plate (33) is rotatably connected to the sliding seat (32) in the horizontal direction. The sliding seat (32) is provided with a swinging assembly for driving the pressure plate (33) to swing back and forth.

3. A large-particle iron powder lump sieve crushing mechanism according to claim 2, characterized in that: The moving component includes a guide rod (38), a threaded rod (39), and a handle (391). The guide rod (38) and the threaded rod (39) are both disposed on the crushing box (1) along the sliding direction of the sliding seat (32) and pass through the sliding seat (32). The threaded rod (39) is rotatably connected to the crushing box (1) around its own axis. The threaded rod (39) is threadedly connected to the sliding seat (32). The handle (391) is disposed at one end of the threaded rod (39).

4. A large-particle iron powder lump sieve crushing mechanism according to claim 3, characterized in that: The threaded rod (39) is provided with scale lines.

5. A large particle iron powder lump sieve crushing mechanism according to claim 2, characterized in that: The swing assembly includes a rotating motor (34), a rotating rod (35), a first connecting rod (36), and a second connecting rod (37). The rotating rod (35) is rotatably connected to the sliding seat (32) about a transverse direction. One end of the first connecting rod (36) is fixedly connected to the rotating rod (35), and the other end of the first connecting rod (36) is hinged to one end of the second connecting rod (37). The other end of the second connecting rod (37) is hinged to the pressure plate (33). The rotating motor (34) is mounted on the sliding seat (32), and the rotating shaft of the rotating motor (34) is connected to the rotating rod (35).

6. A large-particle iron powder lump sieve crushing mechanism according to claim 5, characterized in that: The drive mechanism (4) includes a sector gear (41), a rack (42), an elastic element (43), and a drive component. The rack (42) is connected to the screening plate (2), and the sector gear (41) is rotatably connected to the crushing box (1). The sector gear (41) meshes with the rack (42). One end of the elastic element (43) is connected to the screening plate (2), and the other end of the elastic element (43) is connected to the crushing box (1). The drive component is used to drive the sector gear (41) to rotate.

7. A large-particle iron powder lump sieve crushing mechanism according to claim 6, characterized in that: The driving component includes a driving wheel (44), a driven wheel (45), and a timing belt (46). The driving wheel (44) is coaxially connected to the rotating rod (35), the driven wheel (45) is coaxially connected to the sector gear (41), and the timing belt (46) is wound around the driving wheel (44) and the driven wheel (45). The timing belt (46) is made of an elastic material.

8. A large particle iron powder lump sieve crushing mechanism according to claim 2, characterized in that: The fixed plate (31) and the pressing plate (33) are provided with pressure-resistant wear-resistant blocks (5) on the side close to each other.

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