Crushing device for neodymium iron boron cast sheet after melt-spinning

Abstract

The utility model discloses a crushing device for neodymium iron boron cast sheets after melt-spinning, which comprises a shell, a support is arranged at the lower end of the shell, a crushing frame is arranged at the upper end of the shell, a feed hopper is fixedly connected to the upper end of the crushing frame, and a crushing mechanism is bolted to the lower end of the shell. By arranging the crushing mechanism, the equipment can achieve continuous crushing operation, the production efficiency is improved, the two ends of a crushing roller are installed on the shell through bearings, crushing teeth are arranged on the surface of the crushing roller, and the crushing teeth are trapezoidal or triangular, so that the crushing effect is improved; through the arranged recycling mechanism, the equipment can achieve automatic recycling of casting piece fragments, manual operation is reduced, the production efficiency is improved, a movable frame drives a collecting frame and a third gear to move upwards, and under the action of a toothed plate, the third gear and the collecting frame rotate reversely by 120 degrees; and the collecting frame can pour the neodymium iron boron which does not meet the requirement into the feeding hopper again to be crushed.

Description

Technical Field

[0001] This utility model relates to the field of vacuum rapid solidification furnace technology, specifically to a crushing device for NdFeB cast sheets after being thrown. Background Technology

[0002] Vacuum rapid solidification furnace uses vacuum induction melting method, which uses electromagnetic induction principle to melt various metal raw materials in crucible, and then casts them through tilting furnace system. After passing through tundish, the metal rapidly solidifies in condenser. Under the action of centrifugal force, the metal is separated from condenser and thrown into water cooling pan. Through mechanical crushing and air cooling, it is made into flake-shaped alloy castings.

[0003] Patent CN105498898A discloses a crushing device for cast sheet from a conveyor belt, comprising: a drive wheel, which is fixed to the side of a roller and coaxial with the roller, and is driven to rotate by a copper roller motor; the outer edge of the drive wheel has a first transmission tooth; a collection bin, which is located below the roller and is used to collect the cast sheet from the conveyor belt; and a crushing bin, which is located below the collection bin and has interlocking crushing teeth and a crushing hopper, one end of each of the crushing teeth and the crushing hopper is provided with a bearing support, and the other end is provided with an interlocking first driven wheel and a second driven wheel; the first driven wheel rotates under the drive of the drive wheel through a transmission chain, and drives the crushing teeth and the crushing hopper to rotate in the opposite direction along the axis, thereby uniformly crushing the cast sheet.

[0004] Currently, traditional equipment can only achieve the single effect of crushing, lacking a screening structure for the crushed castings. In use, raw castings are generally put into a hopper, crushed by motor-driven stirring, and then screened by a filter. However, the NdFeB raw wafers that do not meet the fineness requirements will remain on the screen. It is necessary to use a container to collect the NdFeB raw wafers that do not meet the fineness requirements and then pour them back into the hopper for crushing. Moreover, after a long period of crushing and filtration, the NdFeB raw wafers adhere to the screen, affecting the filtration effect of the screen. Utility Model Content

[0005] The purpose of this invention is to provide a crushing device for NdFeB cast sheets after conveyor belt crushing, in order to solve the problem that the devices proposed in the background art can only achieve the single effect of crushing, and lack a screening structure for the crushed cast sheets. In use, the raw cast sheets are generally put into the hopper, and the crushing is carried out by motor-driven stirring. The sheets are then screened and filtered. However, the NdFeB raw sheets that do not meet the fineness requirements will remain on the screen. It is necessary to use a container to collect the NdFeB raw sheets that do not meet the fineness requirements and then pour them back into the hopper for crushing. Moreover, the problem is that after a long period of crushing and filtering, the NdFeB raw sheets adhere to the screen, affecting the filtration effect of the screen.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crushing device for neodymium iron boron cast sheets after strip throwing, comprising a shell, a support at the lower end of the shell, a crushing frame at the upper end of the shell, a feed hopper fixedly connected to the upper end of the crushing frame, a crushing mechanism bolted to the lower end of the shell, a recycling mechanism fixedly connected to the upper end of the shell, a baffle bolted to one side of the upper end of the shell, and a discharge port opened on one side of the shell;

[0007] The crushing mechanism includes a motor, the upper end of which is detachably connected to the lower end of the housing. The output shaft of the motor is provided with a main drive wheel, and the outer wall of the main drive wheel is provided with a belt. The upper end of the belt is connected to a driven wheel. A gear is movably connected to one side of the driven wheel. A gear is meshed with the outer wall of the gear. A crushing roller is connected to one side of the gear. The main drive wheel is sleeved on one side of the crushing roller. The outer wall of the main drive wheel is connected to a driven wheel via the belt. A rotating rod is inserted into the middle of the driven wheel. Cams are sleeved on both ends of the outer wall of the rotating rod. A screen is movably connected above the cams. Impact blocks are fixed to both sides of the lower end of the screen.

[0008] Preferably, the upper end of the bracket is fixedly connected to the lower end of the outer shell, and the upper end of the outer shell is fixedly connected to the lower end of the crushing frame.

[0009] Preferably, the output shaft of the first motor is connected to one side of the first main drive wheel, and the outer wall of the first main drive wheel is connected to the lower end of the first belt.

[0010] Preferably, one side of the rotating rod extends through the middle of the second transmission wheel and into the housing, and the upper end of the cam contacts the lower end of the striking block.

[0011] Preferably, the recycling mechanism includes a fixed frame, the lower end of which is fixedly connected to the upper end of the outer shell. A toothed plate is provided on one side of the fixed frame, and a second motor is provided at the upper end of the fixed frame. The output shaft of the second motor is rotatably connected to a take-up roller. The outer wall of the take-up roller is fixedly connected to one end of a pull rope. The two sides of the inner wall of the fixed frame are embedded and connected to the outer wall of the chute. A movable frame is fixedly connected to the lower end of the pull rope. A slider is slidably connected to the inner wall of the chute. A collection frame is fixedly connected to the bottom of the movable frame through a rotating shaft. Gears are fixedly connected to both ends of the rotating shaft.

[0012] Preferably, one side of the fixing frame is fixedly connected to one side of the toothed plate, and the upper end of the fixing frame is detachably connected to the lower end of the second motor.

[0013] Preferably, the slider is horizontally positioned, which increases the stability of the movable frame when it moves on the fixed frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The crushing mechanism enables continuous crushing operations, improving production efficiency. The two ends of the crushing roller are mounted on the outer shell via bearings. The surface of the crushing roller is equipped with crushing teeth, which are trapezoidal or triangular in shape to enhance the crushing effect. The speed of the crushing roller is adjustable to adapt to the crushing requirements of castings of different thicknesses. The screen is set below the crushing roller to screen the crushed casting fragments, ensuring that the size of the crushed castings meets the requirements, thus improving crushing efficiency, reducing energy consumption, and ensuring the quality of the crushed castings through the screen and baffles, while also improving the working environment.

[0016] 2. The set-up recycling mechanism enables the equipment to automatically recycle casting fragments, reducing manual operation and improving production efficiency. The movable frame drives the collection frame and gear three to move upward. Under the action of the toothed plate, gear three and the collection frame reverse 120 degrees. The collection frame will then pour the NdFeB that does not meet the requirements back into the feed hopper for crushing, realizing the automatic recycling of substandard casting fragments, reducing labor costs, improving production efficiency, and the setting of the collection frame ensures the storage and transportation of casting fragments, further optimizing the production process. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the crushing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the recycling mechanism of this utility model;

[0020] Figure 4 This is a side sectional view of the three-dimensional structure of this utility model.

[0021] In the diagram: 1. Outer shell; 2. Support frame; 3. Crushing frame; 4. Feed hopper; 5. Crushing mechanism; 6. Recycling mechanism; 7. Baffle; 8. Discharge port; 51. Motor 1; 52. Main drive wheel 1; 53. Belt 1; 54. Driven drive wheel 1; 55. Gear 1; 56. Gear 2; 57. Crushing roller; 58. Main drive wheel 2; 59. Belt 2; 510. Driven drive wheel 2; 511. Rotating rod; 512. Cam; 513. Screen; 514. Striking block; 61. Fixed frame; 62. Toothed plate; 63. Motor 2; 64. Rewinding roller; 65. Pull rope; 66. Slide chute; 67. Movable frame; 68. Slider; 69. Rotating shaft; 610. Gear 3; 611. Collection frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 4 This utility model provides a technical solution: a crushing device for neodymium iron boron cast sheets after belt throwing, including a shell 1, a support 2 at the lower end of the shell 1, a crushing frame 3 at the upper end of the shell 1, a feed hopper 4 fixedly connected to the upper end of the crushing frame 3, a crushing mechanism 5 bolted to the lower end of the shell 1, a recovery mechanism 6 fixedly connected to the upper end of the shell 1, a baffle 7 bolted to one side of the upper end of the shell 1, and a discharge port 8 opened on one side of the shell 1. The crushing mechanism 5 includes a motor 51, the upper end of the motor 51 is detachably connected to the lower end of the shell 1, the output shaft of the motor 51 is provided with a main drive wheel 52, the outer wall of the main drive wheel 52 is provided with a belt 53, and the upper end of the belt 53 is connected to a drive wheel 52. 54. Gear 55 is movably connected to one side of the transmission wheel 54. Gear 56 is meshed with the outer wall of gear 55. Crushing roller 57 is driven to one side of gear 55. Main transmission wheel 58 is sleeved on one side of crushing roller 57. Driven wheel 510 is driven to the outer wall of main transmission wheel 58 through belt 59. Rotating rod 511 is inserted into the middle of driven wheel 510. Cams 512 are sleeved at both ends of the outer wall of rotating rod 511. Screen 513 is movably connected above cam 512. Striking blocks 514 are fixed to both sides of the lower end of screen 513. The upper end of bracket 2 is fixedly connected to the lower end of outer shell 1. The upper end of outer shell 1 is fixedly connected to the lower end of crushing frame 3.

[0024] Workers place the castings to be crushed into the feed hopper 4, then start motor 51. The output of motor 51, through the combined action of main drive wheel 52, belt 53, and driven drive wheel 54, drives a set of crushing rollers 57 to rotate. These rollers then drive gear 55 to rotate simultaneously, which in turn drives gear 56, which in turn drives another set of crushing rollers 57 to rotate relative to each other. The two crushing rollers 57 crush the castings, and the crushed pieces fall onto screen 513. Castings that meet the fineness requirements are discharged through screen 513, while those that do not meet the fineness requirements are blocked and remain on screen 513. Simultaneously, the rotation of the crushing rollers 57 drives main drive wheel 58 to rotate. Main drive wheel 58, through belt 59, drives driven drive wheel 510 to rotate. Drive wheel 510 drives rotating rod 511 and two cams 5... When cam 512 rotates, it can contact the bottom of one side of screen 513 and lift it up. When cam 512 rotates 180 degrees, the left side of screen 513 swings upward and tilts to its maximum stroke. At this time, the castings that do not meet the fineness requirements will be tilted out of the tilted screen 513 and discharged through the opening on one side of the outer shell 1. The castings that do not meet the fineness requirements will be collected by the collection frame 611 and put back into the feed hopper 4 for crushing. When cam 512 rotates 360 degrees, cam 512 no longer pushes against screen 513. Screen 513 is reset to a horizontal state inside the outer shell 1 and screen 513 will re-screen the castings. The two sets of crushing rollers 57 are driven by motor 51 to crush the castings. Screen 513 screens the crushed castings. The castings that do not meet the fineness requirements are collected by the collection frame 611 and then poured back into the feed hopper 4 for crushing.

[0025] Please see Figure 2 In order to quickly crush and screen the neodymium iron boron castings inside the outer shell 1, the output shaft of motor 51 is connected to one side of the main drive wheel 52, the outer wall of the main drive wheel 52 is connected to the lower end of the belt 53, one side of the rotating rod 511 passes through the middle of the drive wheel 510 and extends into the outer shell 1, and the upper end of the cam 512 contacts the lower end of the striking block 514.

[0026] Multiple crushing teeth are provided on both sides of the inner wall of the crushing frame 3. The crushing teeth are triangular in shape to ensure that the NdFeB castings can be effectively crushed during the crushing process. The lower end of the crushing frame 3 cooperates with the upper end of the crushing mechanism 5, so that the crushed material can fall smoothly into the discharge port 8. The baffle 7 is used to prevent dust and fine particles generated during use from flying out of the equipment, ensuring a clean working environment. The baffle 7 is connected to the outer shell 1 by bolts, which is convenient for disassembly and cleaning. The discharge port 8 is located on one side of the outer shell 1, which is convenient for operators to collect the crushed material. The size and position of the discharge port 8 are carefully set to ensure that the material can flow out smoothly and reduce the loss of material during the discharge process. Through reasonable structural layout and component selection, effective crushing of NdFeB castings and rapid material recovery are achieved.

[0027] Please see Figure 3 To quickly fix the collection frame 611 onto the outer shell 1, the recycling mechanism 6 includes a fixed frame 61. The lower end of the fixed frame 61 is fixedly connected to the upper end of the outer shell 1. A toothed plate 62 is provided on one side of the fixed frame 61. A motor 63 is provided at the upper end of the fixed frame 61. The output shaft of the motor 63 is rotatably connected to a winding roller 64. The outer wall of the winding roller 64 is fixedly connected to one end of a pull rope 65. The inner walls of the fixed frame 61 are embedded and connected to the outer walls of a chute 66 on both sides. A movable frame 67 is fixedly connected to the lower end of the pull rope 65. A slider 68 is slidably connected to the inner wall of the chute 66. The bottom of the movable frame 67 is fixedly connected to the collection frame 611 via a rotating shaft 69. Gears 610 are fixedly connected to both ends of the rotating shaft 69. One side of the fixed frame 61 is fixedly connected to one side of the toothed plate 62. The upper end of the fixed frame 61 is detachably connected to the lower end of the motor 63. The slider 68 is horizontally positioned, which increases the stability of the movable frame 67 when it moves on the fixed frame 61.

[0028] When the castings that do not meet the fineness requirements are discharged through the outlet 8 via the inclined screen 513, they will be discharged into the collection frame 611 through the opening on one side of the outer casing 1. When the collection frame 611 is full of castings that do not meet the fineness requirements, the operator controls the second motor 63 to start. The output end of the second motor 63 drives the winding roller 64 to rotate. The winding roller 64 drives the pull rope 65 on its surface to retract. The pull rope 65 pulls the movable frame 67 upward. Since the slider 68 slides in the groove 66 in the fixed frame 61, the movable frame 67 will drive the collection frame 611 and the gear 3 610 to move upward along the fixed frame 61. After the gear 3 610 moves upward a certain distance, it will engage with the tooth groove of the toothed plate 62. When the gear 610 continues to move upward under the action of the toothed plate 62, it will rotate. The reverse rotation of the gear 610 will drive the collection frame 611 to rotate. When the gear 610 continues to move upward to its maximum stroke, the collection frame 611 will rotate to 120 degrees, and the castings that do not meet the fine requirements will be poured back into the feed hopper 4 for crushing. Afterwards, the operator controls the motor 63 to start and reverse. At this time, the winding roller 64 will release the wound rope 65. The rope 65 can be extended. Under the weight of the movable frame 67 itself, the movable frame 67 will move downward. The downward movement of the movable frame 67 will drive the slider 68, the collection frame 611 and the gear 610 to move downward along the slide groove 66. After the gear 610 moves downward a certain distance, it will engage with the toothed plate 62. When plate 62 contacts the gear, gear 610 continues to move downwards and resets. The rotation of gear 610 drives the collection frame 611 to rotate. After gear 610 has rotated completely and disengaged from gear plate 62, collection frame 611 rotates exactly 120 degrees. Movable frame 67 then drives collection frame 611 to continue moving downwards until it contacts the opening on one side of outer casing 1. This allows substandard castings to be poured back into feed hopper 4 for crushing, eliminating the need for separate collection of substandard castings, thus making operation more convenient. To ensure effective screening of the crushed NdFeB castings, screen 513 has a very fine structure, consisting of multiple layers of metal wire mesh with different apertures to accommodate castings of different sizes. At the lower end of the screen 513, the striking block 514 loosens the casting fragments on the screen 513 through periodic striking motion, causing them to fall into the collection frame 611. The opening of the collection frame 611 is funnel-shaped to facilitate the centralized collection of substandard casting fragments. Furthermore, to improve the automation and ease of operation, the recycling mechanism 6 uses sensors to detect the quantity and size of the broken casting fragments and automatically adjusts the speed of the motor 63 to control the winding speed of the winding roller 64. This ensures that the casting fragments in the collection frame 611 do not overflow due to overload, while also improving work efficiency. The entire outer shell 1 of the device is made of high-strength material to ensure sufficient stability and durability during crushing and screening.It can efficiently and safely complete crushing and screening tasks.

[0029] Working principle: First, the workers put the castings to be crushed into the feed hopper 4. Then, the motor 51 is started. The output of the motor 51, through the cooperation of the main drive wheel 52, belt 53, and driven wheel 54, drives a set of crushing rollers 57 to rotate. The crushing rollers 57 drive the gear 55 to rotate simultaneously. The gear 55 drives the gear 56 meshing with it, which in turn drives the other set of crushing rollers 57 to rotate relative to each other. The two crushing rollers 57 rotate to crush the castings. The crushed castings fall onto the screen 513. Castings that meet the fineness requirements will pass through the screen 513 and be discharged. Castings that do not meet the fineness requirements will be discharged. The material will be blocked by screen 513 and remain on screen 513. Simultaneously, the rotation of a set of crushing rollers 57 drives the main drive wheel 58 to rotate. The main drive wheel 58 drives the secondary drive wheel 510 to rotate via belt 59. The secondary drive wheel 510 drives the rotating rod 511 and two cams 512 to rotate. The cams 512 can contact the bottom side of one side of the screen 513 and lift it up. When the cams 512 reverse 180 degrees, the left side of the screen 513 swings upward and tilts to its maximum stroke. At this time, the castings that do not meet the fineness requirements will tilt out of the tilted screen 513 and then be discharged through the opening on one side of the outer casing 1. The castings that do not meet the fineness requirements will then be collected by the collection frame 611. The castings that do not meet the fineness requirements are collected and put back into the feed hopper 4 for crushing. When the cam 512 rotates 360 degrees, the cam 512 no longer presses against the screen 513, and the screen 513 resets to a horizontal state inside the outer shell 1. The screen 513 then re-screens the castings. The two sets of crushing rollers 57 are driven by the motor 51 to crush the castings. The screen 513 screens the crushed castings. Castings that do not meet the fineness requirements are collected through the collection frame 611 and then poured back into the feed hopper 4 for crushing. The inner walls of the crushing frame 3 are equipped with multiple crushing teeth on both sides. The crushing teeth are triangular in shape to ensure that the NdFeB castings can be effectively crushed during the crushing process. The crushing frame 3 is engaged with the upper end of the crushing mechanism 5 to allow the crushed material to fall smoothly into the discharge port 8. The baffle 7 is used to prevent dust and fine particles generated during use from flying out of the equipment, ensuring a clean working environment. The baffle 7 is connected to the outer shell 1 by bolts for easy disassembly and cleaning. The discharge port 8 is located on one side of the outer shell 1, making it easy for operators to collect the crushed material. The size and position of the discharge port 8 are carefully set to ensure that the material can flow out smoothly and reduce material loss during the discharge process. Through reasonable structural layout and component selection, effective crushing of neodymium iron boron casting sheets and rapid material recovery are achieved.

[0030] Then, when the castings that do not meet the fineness requirements are discharged through the outlet 8 via the inclined screen 513, the castings that do not meet the fineness requirements will be discharged into the collection frame 611 through the opening on one side of the outer shell 1. When the collection frame 611 is full of castings that do not meet the fineness requirements, the operator controls the second motor 63 to start. The output end of the second motor 63 drives the take-up roller 64 to rotate. The take-up roller 64 drives the pull rope 65 on its surface to retract. The pull rope 65 pulls the movable frame 67 upward. Since the slider 68 slides in the groove 66 in the fixed frame 61, the movable frame 67 will drive the collection frame 611 and the gear 3 610 to move upward along the fixed frame 61. After the gear 3 610 moves upward a certain distance, the gear 3 610 will engage with the toothed plate 62. With toothed contact, under the action of toothed plate 62, gear 610 continues to move upward and rotates. Gear 610 reverses and drives collection frame 611 to rotate. When gear 610 continues to move upward to its maximum stroke, collection frame 611 rotates to 120 degrees, and the castings that do not meet the fineness requirements are poured back into feed hopper 4 for crushing. Afterwards, the operator controls motor 63 to start reversing. At this time, winding roller 64 releases the wound pull rope 65. Pull rope 65 can extend. Under the weight of the movable frame 67 itself, the movable frame 67 moves downward. The downward movement of movable frame 67 will drive slider 68, collection frame 611 and gear 610 to move downward along slide groove 66. After moving downward a certain distance, gear 610 will... Upon contact with the toothed plate 62, gear 610 continues to move downwards and resets. The rotation of gear 610 drives the collection frame 611 to rotate. After gear 610 has rotated completely and disengaged from the toothed plate 62, the collection frame 611 rotates exactly 120 degrees. The movable frame 67 then drives the collection frame 611 to continue moving downwards until it contacts the opening on one side of the outer casing 1. This allows the substandard castings to be poured back into the feed hopper 4 for crushing, eliminating the need for separate collection of substandard castings and making operation more convenient. To ensure effective screening of the crushed NdFeB castings, the screen 513 has a very fine structure, consisting of multiple layers of metal wire mesh with different apertures to accommodate castings of different sizes. The fragments, located at the lower end of the screen 513, are loosened by the striking block 514 through periodic striking motion, causing them to fall into the collection frame 611. The opening of the collection frame 611 is funnel-shaped to facilitate the centralized collection of substandard casting fragments. Furthermore, to improve the automation and ease of operation, the recycling mechanism 6 uses sensors to detect the quantity and size of the broken casting fragments and automatically adjusts the speed of motor 63 to control the winding speed of the winding roller 64. This ensures that the casting fragments in the collection frame 611 do not overflow due to overload, while also improving work efficiency. The entire outer shell 1 of the device is made of high-strength material to ensure sufficient stability and durability during crushing and screening.The device is capable of efficiently and safely completing crushing and screening tasks. The above describes the entire working process of the device. Any content not described in detail in this specification is existing technology known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crushing device for neodymium iron boron cast sheets after strip throwing, comprising a housing (1), characterized in that: The lower end of the outer shell (1) is provided with a support (2), the upper end of the outer shell (1) is provided with a crushing frame (3), the upper end of the crushing frame (3) is fixedly connected with a feed hopper (4), the lower end of the outer shell (1) is bolted with a crushing mechanism (5), the upper end of the outer shell (1) is fixedly connected with a recycling mechanism (6), a baffle (7) is bolted to one side of the upper end of the outer shell (1), and a discharge port (8) is opened on one side of the outer shell (1). The crushing mechanism (5) includes a motor (51), the upper end of which is detachably connected to the lower end of the outer casing (1). The output shaft of the motor (51) is provided with a main drive wheel (52). The outer wall of the main drive wheel (52) is provided with a belt (53). The upper end of the belt (53) is connected to a driven wheel (54). A gear (55) is movably connected to one side of the driven wheel (54). A gear (56) is meshed with the outer wall of the gear (55). 5) One side of the crushing roller (57) is connected to the crushing roller (57). A main drive wheel (58) is sleeved on one side of the crushing roller (57). The outer wall of the main drive wheel (58) is connected to a driven wheel (510) via a belt (59). A rotating rod (511) is inserted into the middle of the driven wheel (510). Cams (512) are sleeved on both ends of the outer wall of the rotating rod (511). A screen (513) is movably connected above the cam (512). A striking block (514) is fixed on both sides of the lower end of the screen (513).

2. The crushing device for NdFeB cast sheets after belt throwing according to claim 1, characterized in that: The upper end of the bracket (2) is fixedly connected to the lower end of the outer shell (1), and the upper end of the outer shell (1) is fixedly connected to the lower end of the crushing frame (3).

3. The crushing device for NdFeB cast sheets after belt throwing according to claim 1, characterized in that: The output shaft of the motor (51) is connected to one side of the main drive wheel (52), and the outer wall of the main drive wheel (52) is connected to the lower end of the belt (53).

4. The crushing device for NdFeB cast sheets after belt throwing according to claim 3, characterized in that: One side of the rotating rod (511) extends from the middle of the transmission wheel (510) into the housing (1), and the upper end of the cam (512) contacts the lower end of the striking block (514).

5. The crushing device for NdFeB cast sheets after strip throwing according to claim 1, characterized in that: The recycling mechanism (6) includes a fixed frame (61), the lower end of which is fixedly connected to the upper end of the outer shell (1). A toothed plate (62) is provided on one side of the fixed frame (61). A motor (63) is provided on the upper end of the fixed frame (61). A winding roller (64) is rotatably connected to the output shaft of the motor (63). The outer wall of the winding roller (64) is fixedly connected to one end of the pull rope (65). The inner walls of the fixed frame (61) are embedded and connected to the outer walls of the chute (66) on both sides. A movable frame (67) is fixedly connected to the lower end of the pull rope (65). A slider (68) is slidably connected to the inner wall of the chute (66). A collection frame (611) is fixedly connected to the bottom of the movable frame (67) through a rotating shaft (69). Gears (610) are fixedly connected to both ends of the rotating shaft (69).

6. The crushing device for NdFeB cast sheets after strip throwing according to claim 5, characterized in that: One side of the fixing frame (61) is fixedly connected to one side of the toothed plate (62), and the upper end of the fixing frame (61) is detachably connected to the lower end of the second motor (63).

7. The crushing device for NdFeB cast sheets after belt throwing according to claim 5, characterized in that: The slider (68) is set horizontally, which increases the stability of the movable frame (67) when it moves on the fixed frame (61).

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