A rare earth polishing powder processing pulverizer

Abstract

The application relates to the technical field of rare earth polishing powder processing, in particular to a crushing device for rare earth polishing powder processing, which comprises a rack and further comprises: a screening mechanism connected with the rack; a crushing mechanism connected with the screening mechanism, the crushing mechanism comprising a collecting shell fixedly installed at the top end of the screening mechanism, two groups of rolling crushing parts symmetrically arranged and slidably installed at the top of the collecting shell, a cross impeller coaxially connected with the rolling crushing part, a supporting table connected with the rolling crushing part, a transmission pressure measuring part fixedly connected with the supporting table, an overload disconnecting part connected with the transmission pressure measuring part, the overload disconnecting part being connected with the supporting table, two groups of horizontal moving parts symmetrically arranged and connected with the overload disconnecting part, and a weight power assisting mechanism connected with the rack. The application provides overload protection for a double-output-shaft motor, and the cross impeller is hammered by the weight power assisting mechanism to help the rolling crushing part to operate, so that the frequency of shutdown inspection due to the fact that the application is blocked by materials is reduced.

Description

Technical Field

[0001] This invention relates to the field of rare earth polishing powder processing technology, specifically a crushing device for rare earth polishing powder processing. Background Technology

[0002] Rare earth polishing powder refers to a powder of mixed light rare earth oxides with cerium oxide as the main component, used to improve the surface finish of products or parts. It is typically made from bastnaesite concentrate or soluble rare earth salts through chemical treatment, calcination, crushing, and sieving processes. During the production and processing of rare earth polishing powder, a crushing device is often required to pulverize the powder to ensure that the particle size meets standard values.

[0003] Conventional crushing devices use motor-driven crushing rollers to crush solid materials. However, in actual processing, some materials cannot be crushed by the crushing device due to their large size, density, or hardness. In this case, the material between the crushing rollers will prevent the rollers from rotating. The motor is also in a state of continuous high load output, but the output shaft of the motor cannot rotate, causing the motor to continuously heat up. To avoid the motor burning out, it is often necessary to stop the crusher for inspection. The crushing rollers need to be disassembled, and the material between the crushing rollers needs to be removed and shredded separately so that the crusher can re-crush the material. When existing crushers are jammed by material, they can only stop the machine for inspection and remove the material stuck between the crushing rollers, which greatly reduces the processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a pulverizing device for processing rare earth polishing powder, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pulverizing device for processing rare earth polishing powder includes a frame and further includes:

[0007] Screening mechanism connected to the frame;

[0008] A crushing mechanism connected to a screening mechanism includes a collection shell fixedly installed at the top of the screening mechanism. Two sets of symmetrically arranged rotating crushing sections are slidably mounted on the top of the collection shell. A cross impeller is coaxially connected to each rotating crushing section. A support platform is connected to each rotating crushing section. A transmission pressure measuring section connected to the rotating crushing section is fixedly connected to the support platform. An overload disconnection section is connected to the transmission pressure measuring section and is connected to the overload disconnection section. Two sets of symmetrically arranged transverse moving sections are connected to the overload disconnection section. The transverse moving sections drive the overload disconnection section to move. During this movement, the overload disconnection section applies the driving force required for the rotating crushing section to the rotating crushing section through the support platform. A dual-shaft motor is connected to the overload disconnection section. One output end of the dual-shaft motor is connected to the overload disconnection section, and the other output end of the dual-shaft motor is fixedly connected to a first friction disc.

[0009] The counterweight assist mechanism connected to the frame is used to apply impact force to the cross impeller. The first friction disc applies a reset torque to the counterweight assist mechanism by rubbing against it.

[0010] As a further improvement of the present invention: the screening mechanism includes a rectangular cover fixedly connected to the frame, a frame slidably installed inside the rectangular cover, a screen fixedly connected to the frame, multiple sets of first springs connected to the rectangular cover connected to the frame, a vibration motor fixedly connected to the frame, and the top surface of the frame fixedly connected to the collection shell.

[0011] As a further improvement of the present invention: the rolling crushing part includes a half-cover body that is slidably connected to the collecting shell, the half-cover body is fixedly connected to the support platform, the half-cover body is rotatably connected to a crushing roller, one end of the crushing roller is fixedly connected to a cross impeller on the same axis, and the end of the crushing roller away from the cross impeller is connected to a transmission pressure measuring part.

[0012] As a further improvement of the present invention: the transmission pressure measuring part includes an annular cover fixedly connected to the support platform, an oil storage shell fixedly connected to the annular cover, a first linear displacement sensor installed inside the oil storage shell, a plug slidably installed inside the oil storage shell fixedly connected to the moving end of the first linear displacement sensor, a driven member rotatably installed inside the annular cover and fixedly connected to the crushing roller, a plurality of through holes communicating with the inner cavity of the annular cover are opened on the driven member, a driving member is rotatably connected to the driven member, a second spring is installed between the driven member and the driving member, the space between the driving member and the driven member is connected to the space between the annular cover and the driven member through the through holes, and the driving member is connected to the overload disconnection part.

[0013] As a further improvement of the present invention: the overload disconnection part includes a second active telescopic rod connected to the transverse movement part. The moving end of the second active telescopic rod is fixedly connected to a linkage platform that is slidably connected to the transverse movement part. The linkage platform is connected to the dual-output shaft motor by bolts. The protrusion of the linkage platform is slidably connected to the support platform. The support platform is fixedly connected to an elastic telescopic frame. The moving end of the elastic telescopic frame is fixedly connected to a rotation limit frame. The rotation limit frame is rotatably connected to a first ratchet frame. The first ratchet frame is movably connected to a second ratchet frame that is coaxially fixedly connected to the dual-output shaft motor. The first ratchet frame is fixedly connected to a prism. The prism is slidably connected to a sleeve. A third spring that is fixedly connected to the prism is fixedly installed inside the sleeve. The sleeve is fixedly connected to the active component.

[0014] As a further improvement of the present invention: the transverse movement part includes a third active telescopic rod fixedly connected to the frame, the moving end of the third active telescopic rod is fixedly connected to a transverse movement frame slidably connected to the frame, the transverse movement frame is fixedly connected to the second active telescopic rod, and the transverse movement frame is slidably connected to the linkage table.

[0015] As a further improvement of the present invention: the counterweight assist mechanism includes two sets of guide rails fixedly connected to the frame, the two sets of guide rails are symmetrically arranged, the guide rails are rotatably connected to a second friction disc, each set of second friction discs is coaxially fixedly connected to a wire wheel, the wire wheel is wound with a pull wire, the pull wire is slidably arranged in the guide rails, the two sets of pull wires are jointly fixedly connected to a set of counterweights, the guide rails are fixedly connected to a first active telescopic frame, and the moving end of the first active telescopic frame is fixedly connected to an insert block that is movably connected to the counterweight.

[0016] As a further improvement of the present invention: a limiting hopper fixedly connected to the collection shell is provided below the cross impeller.

[0017] As a further improvement of the present invention: an arc-shaped cover is fixedly installed on both sides of the collecting shell, an electromagnet is fixedly installed inside the arc-shaped cover, and the electromagnet is connected to a material dropping plate that is slidably connected to the collecting shell through a fourth spring, and the material dropping plate is slidably connected to the arc-shaped cover.

[0018] As a further improvement of the present invention: a collection door is movably installed on the collection shell.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] In operation, the dual-shaft motor transmits torque to the overload disconnect unit, which then transmits torque to the transmission pressure measuring unit. This causes the transmission pressure measuring unit to drive the rolling crushing unit to crush the material. The crushed material then falls into the collection shell, where a screening mechanism sieves it. If the material is too large or too hard, the dual-shaft motor outputs maximum torque. However, if the material fed into the rolling crushing unit prevents it from crushing properly, the overload disconnect unit reduces torque through self-separation. The dual-output shaft motor's load is controlled to prevent overload and burnout. As the transmitted torque measured by the transmission pressure measuring unit increases to a warning value, the counterweight assist mechanism activates and applies impact force to the cross impeller. If, with the assistance of the counterweight assist mechanism, the cross impeller and transmission pressure measuring unit jointly drive the rolling crushing unit to crush the jammed material, the rolling crushing unit operates normally. If, with the assistance of the counterweight assist mechanism, the material remains jammed within the rolling crushing unit, a shutdown inspection is performed to clear the jammed material. This invention, through the cooperation of the crushing mechanism and the counterweight assist mechanism, provides overload protection for the dual-output shaft motor when the rolling crushing unit is jammed by material. Furthermore, the counterweight assist mechanism hammers the cross impeller to assist the rolling crushing unit's operation, thereby reducing the frequency of shutdowns for inspection due to material jamming and improving processing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 3 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0024] Figure 4 This is a three-dimensional structural diagram of the transmission pressure measuring part, overload disconnection part, dual output shaft motor, and first friction disc of the present invention.

[0025] Figure 5 This is a three-dimensional structural diagram of the transmission pressure measuring part, overload disconnection part, dual output shaft motor, and first friction disc of the present invention from another perspective.

[0026] Figure 6 This is a three-dimensional structural diagram of the annular cover, oil storage tank, first linear displacement sensor, and plug body of the present invention.

[0027] Figure 7 This is a three-dimensional structural diagram of the interaction between the driven member, through hole, and driving member of the present invention;

[0028] Figure 8 This is a three-dimensional structural diagram of the interaction between the driven member, through hole, and driving member of the present invention from another perspective;

[0029] Figure 9 This is a schematic diagram of the structure of the prism and sleeve of the present invention;

[0030] Figure 10 This is a three-dimensional structural diagram of the counterweight assist mechanism of the present invention;

[0031] Figure 11 This is a three-dimensional structural schematic diagram of the hammer-assisted mechanism of the present invention from another perspective.

[0032] In the diagram: 1. Frame; 2. Sieving mechanism; 3. Crushing mechanism; 4. Collection shell; 5. Rolling crushing section; 6. Cross impeller; 7. Support platform; 8. Transmission pressure measuring section; 9. Overload disconnection section; 10. Lateral movement section; 11. Dual-shaft motor; 12. First friction disc; 13. Counterweight assist mechanism; 14. Rectangular cover; 15. Frame; 16. Screen; 17. Vibrating motor; 18. Half cover; 19. Crushing roller; 20. Annular cover; 21. Oil storage tank; 22. First linear displacement sensor; 23. Plug; 24. Follower; 25. Through hole 26. Active component; 27. Second active telescopic rod; 28. Linkage table; 29. ​​Elastic telescopic frame; 30. Rotation limit frame; 31. First ratchet frame; 32. Second ratchet frame; 33. Prism; 34. Sleeve; 35. Third active telescopic rod; 36. Lateral frame; 37. Wire guide frame; 38. Second friction disc; 39. Wire wheel; 40. Pull wire; 41. Counterweight; 42. First active telescopic frame; 43. Insert block; 44. Limiting hopper; 45. Arc-shaped cover; 46. Electromagnet; 47. Material drop plate; 48. Collection door; 49. Anti-detachment guard. Detailed Implementation

[0033] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0034] Example 1, see Figures 1 to 11 As shown, a pulverizing device for processing rare earth polishing powder includes a frame 1, wherein a control console is fixedly connected to the frame 1, and further includes:

[0035] The screening mechanism 2 is connected to the frame 1 and is used to separate and screen the crushed material.

[0036] A crushing mechanism 3 is connected to the screening mechanism 2. The crushing mechanism 3 includes a collection shell 4 fixedly installed at the top of the screening mechanism 2. Two sets of symmetrically arranged rolling crushing parts 5 are slidably installed on the top of the collection shell 4. Under normal circumstances, the two sets of rolling crushing parts 5 are in a state of mutual contact, and the two sets of rolling crushing parts 5 jointly crush the material. A cross impeller 6 is coaxially connected to the rolling crushing part 5. The cross impeller 6 specifically consists of a set of wheel bodies fixedly connected to the rolling crushing part 5 coaxially and four sets of blades fixedly installed on the wheel bodies at equal angles along the axial direction. The rolling crushing part 5 is connected to a support platform 7, and the support platform 7 is fixedly connected to a... The transmission pressure measuring unit 8 is connected to the rolling crushing unit 5. The transmission pressure measuring unit 8 is connected to the overload disconnection unit 9, which is connected to the support platform 7. The frame 1 is connected to two symmetrically arranged transverse moving parts 10, which are connected to the overload disconnection unit 9. The transverse moving parts 10 are used to drive the overload disconnection unit 9 to move. During this period, the overload disconnection unit 9 applies the driving force required for the movement of the rolling crushing unit 5 through the support platform 7. The overload disconnection unit 9 is connected to a dual-output shaft motor 11. One output end of the dual-output shaft motor 11 is connected to the overload disconnection unit 9, and the other output end of the dual-output shaft motor 11 is fixedly connected to a first friction disc 12.

[0037] The counterweight assist mechanism 13 is connected to the frame 1. The counterweight assist mechanism 13 is used to apply impact force to the cross impeller 6. The first friction disc 12 applies a reset torque to the counterweight assist mechanism 13 by rubbing against it.

[0038] In operation, the dual-shaft motor 11 transmits torque to the overload disconnection unit 9, which in turn transmits torque to the transmission pressure measuring unit 8. This causes the transmission pressure measuring unit 8 to drive the rolling crushing unit 5 to crush the material being fed into the unit. The crushed material then falls into the collection shell 4, where the screening mechanism 2 performs screening. If the material is too large or too hard, the dual-shaft motor 11 outputs its maximum torque. However, if the material fed into the rolling crushing unit 5 prevents it from crushing properly, the overload disconnection unit 9 reduces the torque of the dual-shaft motor 11 through self-separation. The load on the dual-output shaft motor 11 is reduced to prevent it from overloading and burning out. As the transmission pressure measuring unit 8 detects an increase in transmitted torque to a warning value, the hammer-assisted mechanism 13 activates and applies impact force to the cross impeller 6. If, with the assistance of the hammer-assisted mechanism 13, the cross impeller 6 and the transmission pressure measuring unit 8 jointly drive the rotating crushing unit 5, causing it to crush the stuck material, then the rotating crushing unit 5 operates normally. If, with the assistance of the hammer-assisted mechanism 13, the material remains stuck in the rotating crushing unit 5, a shutdown inspection is performed to clear the stuck material. This invention, through the cooperation of the crushing mechanism 3 and the hammer-assisted mechanism 13, provides overload protection for the dual-output shaft motor 11 when the rotating crushing unit 5 is stuck with material, and utilizes the hammer-assisted mechanism 13 to hammer the cross impeller 6 to assist the rotation of the rotating crushing unit 5, thereby reducing the frequency of shutdown inspections due to material jamming and improving processing efficiency.

[0039] In one embodiment, the screening mechanism 2 includes a rectangular cover 14 fixedly connected to the frame 1. A frame 15 is slidably installed inside the rectangular cover 14. A screen 16 is fixedly connected to the frame 15. Multiple sets of first springs are connected to the frame 15, with the ends of the first springs away from the frame 15 fixedly connected to the rectangular cover 14. A vibration motor 17 is fixedly connected to the frame 15. The top surface of the frame 15 is fixedly connected to a collection shell 4. A door is movably connected to the rectangular cover 14, allowing the material accumulated on the screen 16 to be cleaned by opening the door. The collection shell 4 guides the crushed material into the rectangular cover 14, and then, under gravity, the crushed material falls onto the screen 16. The vibration motor 17 performs automatic vibration, driving the frame 15 to vibrate. The frame 15 then drives the screen 16 to reciprocate along a straight line to screen the crushed material.

[0040] In one embodiment, the rotating crushing unit 5 includes a semi-enclosed body 18 slidably connected to the collecting shell 4. After two sets of semi-enclosed bodies 18 are joined together, they form a bucket-shaped structure. The semi-enclosed body 18 is fixedly connected to the support platform 7. A crushing roller 19 is rotatably connected to the semi-enclosed body 18. One end of the crushing roller 19 is coaxially fixedly connected to the cross impeller 6, and the end of the crushing roller 19 away from the cross impeller 6 is connected to the transmission pressure measuring unit 8. The transmission pressure measuring unit 8 drives the crushing roller 19 to rotate, and the crushing roller 19 drives the cross impeller 6 to rotate. When the cross impeller 6 is struck by the hammer-assisted mechanism 13, the cross impeller 6 transmits torque to the crushing roller 19.

[0041] In one embodiment, the transmission pressure measuring unit 8 includes an annular cover 20 fixedly connected to the support platform 7. An oil storage tank 21 is fixedly connected to the annular cover 20. The oil storage tank 21 has a cavity, and its inner cavity communicates with the inner cavity of the annular cover 20. A first linear displacement sensor 22 is installed inside the oil storage tank 21. A plug 23, slidably mounted inside the oil storage tank 21, is fixedly connected to the moving end of the first linear displacement sensor 22. A driven member 24, coaxially fixedly connected to the crushing roller 19, is rotatably mounted inside the annular cover 20. The driven member 24 has multiple sets of through holes 25 that communicate with the inner cavity of the annular cover 20. The driven member 24 is rotatably connected to the driving member 26, which is rotatably mounted on the driven member 24. A second spring is installed between the driven member 24 and the driving member 26. The space between the driving member 26 and the driven member 24 is connected to the space between the annular cover 20 and the driven member 24 through the through holes 25. The driving member 26 is connected to the overload disconnection part 9. The space between the driving member 26, the driven member 24, and the annular cover 20, as well as the space between the annular cover 20 and the driven member 24, is filled with hydraulic oil. The overload disconnection part 9 drives the driving member 26 to rotate. The driving member 26 presses the driven member 24 through the second spring. As the torque applied by the driving member 26 increases, the second spring is compressed, and the space between the driving member 26 and the driven member 24 is compressed. Then, the oil enters the space between the annular cover 20 and the driven member 24 through the through hole 25. At this time, the oil pushes the plug body 23. The first linear displacement sensor 22 detects the movement of the plug body 23, so that the control panel judges the torque on the driven member 24 according to the signal fed back by the first linear displacement sensor 22. Under the pressure of the second spring, the driven member 24 rotates, so that the driven member 24 drives the crushing roller 19 to rotate.

[0042] In one embodiment, the overload disconnection section 9 includes a second active telescopic rod 27 connected to the lateral movement section 10. The second active telescopic rod 27 can be either an electric telescopic rod or a hydraulic telescopic rod. The moving end of the second active telescopic rod 27 is fixedly connected to a linkage platform 28 slidably connected to the lateral movement section 10. The linkage platform 28 is connected to a dual-output shaft motor 11 via bolts. The protrusion of the linkage platform 28 is slidably connected to a support platform 7. The support platform 7 is fixedly connected to an elastic telescopic frame 29. The moving end of the elastic telescopic frame 29 is fixedly connected to a rotation limit frame 30. The linkage platform 28 is fixedly connected to... A track is slidably connected to the rotation limit frame 30, which provides movement guidance for the rotation limit frame 30. The rotation limit frame 30 is rotatably connected to a first ratchet frame 31. The first ratchet frame 31 is movably connected to a second ratchet frame 32 that is coaxially fixedly connected to the dual-output shaft motor 11. Both the first ratchet frame 31 and the second ratchet frame 32 are provided with mutually fitting inclined surfaces. The first ratchet frame 31 is fixedly connected to a prism 33. The prism 33 is slidably connected to a sleeve 34. A third spring that is fixedly connected to the prism 33 is fixedly installed inside the sleeve 34. The sleeve 34 is fixedly connected to the driving member 26. Under normal circumstances, the dual-output shaft motor 11 drives the second ratchet 32 ​​to rotate. The second ratchet 32 ​​compresses and drives the first ratchet 31 to rotate. The first ratchet 31 drives the prism 33 to rotate. The prism 33 drives the sleeve 34 to rotate. The sleeve 34 drives the driving member 26 to rotate. As the rolling crushing part 5 is jammed, the rotating second ratchet 32 ​​and the first ratchet 31 compress each other. At this time, due to the excessive pressure between the second ratchet 32 ​​and the first ratchet 31, the first ratchet 31 is pressed. The first ratchet 31 drives the rotating limiting frame 30 to move. The rotating limiting frame 30 compresses the elastic telescopic frame 29, causing the second ratchet 32 ​​and the first ratchet 31 to separate from each other, that is, the second ratchet 32 ​​continues to rotate. The first ratchet 31 vibrates along the extension direction of the elastic telescopic frame 29 but does not rotate, to avoid overload and burn out the dual-output shaft motor 11. When the second active telescopic rod 27 retracts, the second active telescopic rod 27 drives the linkage platform 28 to move. The linkage platform 28 slides relative to the support platform 7. The linkage platform 28 drives the dual-output shaft motor 11 to move towards the hammer assist mechanism 13, so that the first friction disc 12 abuts against the hammer assist mechanism 13. At this time, the first ratchet 31 and the second ratchet 32 ​​are in a state of separation. At this time, the dual-output shaft motor 11 drives the first friction disc 12 to rotate. The first friction disc 12 transmits torque to the hammer assist mechanism 13 through friction, so as to drive the hammer assist mechanism 13 to reset.

[0043] In one embodiment, the transverse section 10 includes a third active telescopic rod 35 fixedly connected to the frame 1. The moving end of the third active telescopic rod 35 is fixedly connected to a transverse frame 36 slidably connected to the frame 1. The transverse frame 36 is fixedly connected to a second active telescopic rod 27 and slidably connected to a linkage table 28. The third active telescopic rod 35 drives the transverse frame 36 to move, and the transverse frame 36 drives the two sets of linkage tables 28 to move away from each other. The linkage tables 28 drive the semi-enclosed bodies 18 to move away from each other through the support platform 7, so that the two sets of crushing rollers 19 move away from each other, so as to clear out the material stuck between the two sets of crushing rollers 19.

[0044] In one embodiment, the counterweight assist mechanism 13 includes two sets of guide rails 37 fixedly connected to the frame 1. The two sets of guide rails 37 are symmetrically arranged. Each guide rail 37 is rotatably connected to a second friction disc 38. Each set of second friction discs 38 is coaxially fixedly connected to a set of thread wheels 39. A pull wire 40 is wound around the pull wire 39. The pull wire 40 is slidably disposed inside the guide rail 37. Multiple sets of support wheels are rotatably installed inside the guide rail 37. The support wheels are used to provide support for the pull wire 40. The two sets of pull wires 40 are jointly fixedly connected to a set of counterweight blocks 41. A first active telescopic frame 42 is fixedly attached to the guide rail 37. An insert block 43 is fixedly connected to the moving end of the first active telescopic frame 42. The insert block 43 is movably connected to the counterweight block 41. When the first friction disc 12 and the second friction disc 38 are pressed against each other, the first friction disc 12 causes the pulley 39 to wrap around the pull wire 40 by rubbing against the second friction disc 38, thereby raising the height of the counterweight 41. Then, the first active telescopic frame 42 drives the insert block 43 to slide into the counterweight 41 to restrict the movement of the counterweight 41. After the first friction disc 12 and the second friction disc 38 separate and the first active telescopic frame 42 drives the insert block 43 to disengage from the counterweight 41, the counterweight 41 falls. During this period, the counterweight 41 pulls the pull wire 40, and the pulley 39 releases the pull wire at the same time, so that the counterweight 41 impacts the cross impeller 6. The cross impeller 6 obtains torque and transmits the torque to the crushing roller 19 to assist the crushing roller 19 in crushing the material.

[0045] In one embodiment, a limiting hopper 44 fixedly connected to the collecting shell 4 is provided below the cross impeller 6, and an anti-detachment bracket 49 is fixedly connected to the semi-cover 18, with the anti-detachment bracket 49 positioned above the cross impeller 6. During the descent of the counterweight 41, if it bounces after impacting the cross impeller 6, the anti-detachment bracket 49 prevents the counterweight 41 from moving. If the cross impeller 6 rotates upon impact, the counterweight 41 falls into the limiting hopper 44, thus preventing the counterweight 41 from continuing to fall.

[0046] In one embodiment, arc-shaped covers 45 are fixedly installed on both sides of the collecting shell 4. An electromagnet 46 is fixedly installed inside the arc-shaped cover 45. The electromagnet 46 is connected to a material discharge plate 47 slidably connected to the collecting shell 4 via a fourth spring. The material discharge plate 47 is ferromagnetic, and one end of the material discharge plate 47 away from the arc-shaped cover 45 extends into the collecting shell 4. The material discharge plate 47 is slidably connected to the arc-shaped cover 45. When it is necessary to remove the material stuck between the crushing rollers 19, the electromagnet 46 is de-energized. At this time, under the push of the fourth spring on the material discharge plate 47, the material discharge plate 47 slides into the collecting shell 4, and the two sets of material discharge plates 47 abut against each other, so that the material discharge plate 47 prevents the material from falling into the screening mechanism 2.

[0047] Example 2, based on Example 1, see [link / reference] Figure 1 A collection door 48 is movably installed on the collection shell 4. By opening the collection door 48, personnel can collect materials that fall onto the drop plate 47.

[0048] In the implementation of this invention, the dual-shaft motor 11 drives the second ratchet 32 ​​to rotate. The second ratchet 32 ​​compresses and drives the first ratchet 31 to rotate. The first ratchet 31 drives the prism 33 to rotate. The prism 33 drives the sleeve 34 to rotate. The sleeve 34 drives the driving member 26 to rotate. The driving member 26 presses the driven member 24 through the second spring, so that the driven member 24 rotates and drives the crushing roller 19 to rotate. The crushing roller 19 crushes the material. The crushed material then falls into the collection shell 4. The collection shell 4 guides the crushed material into the rectangular cover 14. Then, under the action of gravity, the crushed material falls onto the screen 16. The vibrating motor 17 performs automatic vibration operation, driving the frame 15 to vibrate. The frame 15 drives the screen 16 to reciprocate along a straight line to screen the crushed material. When the material is too large or too hard, the crushing roller 19 cannot rotate because the material cannot be crushed. At this time, the output torque of the dual-output shaft motor 11 reaches its maximum value. At this time, the rotating second ratchet 32 ​​slides relative to the first ratchet 31, and the first ratchet 31 is pressed towards the elastic telescopic frame 29. The rotating limit frame 30 drives the elastic telescopic frame 29 to be compressed, reducing the load on the dual-output shaft motor 11 and preventing the dual-output shaft motor 11 from being overloaded and burned out. As the transmission pressure measuring unit 8 detects that the transmitted torque increases to the warning value, the first active telescopic frame 42 drives the insert block 43 to disengage from the counterweight block 41, causing the counterweight block 41 to fall and impact the cross impeller 6. If, with the assistance of the hammer assist mechanism 13, the cross impeller 6 and the transmission pressure measuring unit 8 jointly drive the rolling crushing unit 5 to crush the stuck material, then the rolling crushing unit 5 will operate normally. If, with the assistance of the hammer assist mechanism 13, the material is still stuck between the two sets of crushing rollers 19, then a shutdown inspection is required to clear the stuck material. During this period, the third active telescopic rod 35 drives the transverse frame 36 to move. The transverse frame 36 drives the two sets of linkage tables 28 to move away from each other. The linkage tables 28 drive the half-covers 18 to move away from each other through the support platform 7, so that the two sets of crushing rollers 19 move away from each other. At the same time, the electromagnet 46 is de-energized. At this time, under the push of the fourth spring on the discharge plate 47, the discharge plate 47 slides into the collection shell 4 and the two sets of discharge plates 47 abut against each other, so that the discharge plate 47 blocks the material from falling into the screening mechanism 2. Then, the material falling on the discharge plate 47 can be collected by opening the collection door 48. The material is then shredded by the cutting equipment and then put back into the equipment so that the equipment can crush the material again.

[0049] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A pulverizing device for processing rare earth polishing powder, comprising a frame, characterized in that, Also includes: Screening mechanism connected to the frame; A crushing mechanism connected to a screening mechanism includes a collection shell fixedly installed at the top of the screening mechanism. Two sets of symmetrically arranged rotating crushing sections are slidably mounted on the top of the collection shell. A cross impeller is coaxially connected to each rotating crushing section. A support platform is connected to each rotating crushing section. A transmission pressure measuring section connected to the rotating crushing section is fixedly connected to the support platform. An overload disconnection section is connected to the transmission pressure measuring section and is also connected to the overload disconnection section. Two sets of symmetrically arranged transverse moving sections are connected to the overload disconnection section. The transverse moving sections drive the overload disconnection section to move, during which the overload disconnection section passes through the support platform. The driving force required to move the rotating crushing section is applied. The overload disconnect mechanism is connected to a dual-shaft motor. One set of outputs of the dual-shaft motor is connected to the overload disconnect mechanism, and the other output of the dual-shaft motor is fixedly connected to a first friction disc. The rotating crushing section includes a semi-enclosed body slidably connected to a collecting shell. The semi-enclosed body is fixedly connected to a support platform. A crushing roller is rotatably connected to the semi-enclosed body. One end of the crushing roller is coaxially fixedly connected to a cross impeller, and the end of the crushing roller away from the cross impeller is connected to a transmission pressure measuring unit. The transmission pressure measuring unit includes an annular cover fixedly connected to the support platform, and an oil storage tank is fixedly connected to the annular cover. A first linear displacement sensor is installed inside the oil storage tank. The moving end of the first linear displacement sensor is fixedly connected to a plug that is slidably installed inside the oil storage tank. A driven member, coaxially fixedly connected to the crushing roller, is rotatably installed inside the annular cover. The driven member has multiple sets of through holes communicating with the inner cavity of the annular cover. A driving member is rotatably connected to the driven member. A second spring is installed between the driven member and the driving member. The space between the driving member and the driven member is connected to the space between the annular cover and the driven member through the through holes. The driving member is connected to an overload disconnection part. The overload disconnection part includes a second active telescopic rod connected to a lateral movement part. The moving end of the two active telescopic rods is fixedly connected to a linkage platform that is slidably connected to the transverse part. The linkage platform is connected to the dual-output shaft motor by bolts. The protrusion of the linkage platform is slidably connected to the support platform. The support platform is fixedly connected to an elastic telescopic frame. The moving end of the elastic telescopic frame is fixedly connected to a rotation limit frame. The rotation limit frame is rotatably connected to a first ratchet frame. The first ratchet frame is movably connected to a second ratchet frame that is coaxially fixedly connected to the dual-output shaft motor. The first ratchet frame is fixedly connected to a prism. The prism is slidably connected to a sleeve. A third spring that is fixedly connected to the prism is fixedly installed inside the sleeve. The sleeve is fixedly connected to the active component. The counterweight assist mechanism connected to the frame is used to apply impact force to the cross impeller. The first friction disc applies a reset torque to the counterweight assist mechanism by rubbing against it.

2. The pulverizing device for processing rare earth polishing powder according to claim 1, characterized in that, The screening mechanism includes a rectangular cover fixedly connected to the frame, a frame slidably installed inside the rectangular cover, a screen fixedly connected to the frame, multiple sets of first springs connected to the rectangular cover connected to the frame, a vibration motor fixedly connected to the frame, and the top surface of the frame fixedly connected to the collection shell.

3. The pulverizing device for processing rare earth polishing powder according to claim 1, characterized in that, The transverse movement includes a third active telescopic rod fixedly connected to the frame. The moving end of the third active telescopic rod is fixedly connected to a transverse frame slidably connected to the frame. The transverse frame is fixedly connected to a second active telescopic rod and slidably connected to the linkage table.

4. The pulverizing device for processing rare earth polishing powder according to claim 1, characterized in that, The counterweight assist mechanism includes two sets of guide rails fixedly connected to the frame. The two sets of guide rails are symmetrically arranged. Each guide rail is rotatably connected to a second friction disc. Each set of second friction discs is coaxially fixedly connected to a reel. A pull wire is wound around the reel. The pull wire is slidably arranged inside the guide rail. The two sets of pull wires are fixedly connected to a set of counterweights. A first active telescopic frame is fixedly connected to the guide rail. The moving end of the first active telescopic frame is fixedly connected to an insert block that is movably connected to the counterweight.

5. The pulverizing device for processing rare earth polishing powder according to claim 1, characterized in that, A limiting hopper, which is fixedly connected to the collection shell, is provided below the cross impeller.

6. The pulverizing device for processing rare earth polishing powder according to claim 1, characterized in that, Both sides of the collecting shell are fixedly installed with arc-shaped covers, and an electromagnet is fixedly installed inside the arc-shaped cover. The electromagnet is connected to a material dropping plate that is slidably connected to the collecting shell through a fourth spring. The material dropping plate is slidably connected to the arc-shaped cover.

7. The pulverizing device for processing rare earth polishing powder according to claim 1, characterized in that, A collection door is movably installed on the collection shell.

Images