Crushing device for rare earth polishing powder processing

Abstract

The invention 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, the crushing mechanism is connected with the screening mechanism and comprises a collecting shell fixedly mounted at the top end of the screening mechanism, two groups of rolling crushing parts which are symmetrically arranged are slidably mounted at the top of the collecting shell, the rolling crushing parts are coaxially connected with cross-shaped impellers, the rolling crushing parts are connected with a supporting table, and the supporting table is fixedly connected with a transmission pressure measuring part; the transmission pressure measuring part is connected with an overload disconnection part, the overload disconnection part is connected with the supporting table, the rack is connected with two sets of transverse moving parts which are symmetrically arranged, and the transverse moving parts are connected with the overload disconnection part; and the heavy hammer power-assisted mechanism is connected with the rack. Overload protection is provided for the double-output-shaft motor, the cross impeller is hammered through the heavy hammer power-assisted mechanism to assist the rolling and crushing part to operate, and therefore the frequency of shutdown inspection due to the fact that the device is clamped by materials is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rare earth polishing powder processing, in particular to a pulverizing device for rare earth polishing powder processing. Background Art

[0002] Rare earth polishing powder refers to a powder of mixed light rare earth oxides with cerium oxide as the main component, which is used to improve the surface finish of products or parts. It is usually made from bastnaesite concentrate or soluble rare earth salts through chemical treatment, burning, crushing, screening and other processes. During the production and processing of rare earth polishing powder, a crushing device is often used to crush the rare earth polishing powder so that the particle size of the rare earth polishing powder reaches the standard value.

[0003] A general crushing device uses a crushing roller driven by a motor to crush solid materials. However, in the actual processing process, some materials cannot be crushed by the crushing device due to their large volume, density or hardness. At this time, the material between the crushing rollers will prevent the crushing rollers from rotating. At this time, 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 continue to heat up. In order to avoid the motor burning, it is often necessary to stop the crusher for inspection. The crushing roller needs to be disassembled, and the material between the crushing rollers needs to be taken out separately and shredded so that the crusher can crush the material again. After being stuck by the material, the existing crusher can only be stopped for inspection and the material stuck between the crushing rollers can be cleared, which greatly reduces the processing efficiency. Summary of the invention

[0004] The object of the present invention is to provide a pulverizing device for processing rare earth polishing powder to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

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

[0007] A screening mechanism connected to the frame;

[0008] A crushing mechanism connected to the screening mechanism, the crushing mechanism includes a collecting shell fixedly installed on the top of the screening mechanism, two groups of symmetrically arranged tumbling crushing parts are slidably installed on the top of the collecting shell, and the tumbling crushing parts are coaxially connected with a cross impeller, the tumbling crushing part is connected to a support platform, the support platform is fixedly connected with a transmission pressure measuring part connected to the tumbling crushing part, the transmission pressure measuring part is connected with an overload disconnecting part, and the overload disconnecting part is connected to the support platform, the frame is connected with two groups of symmetrically arranged transverse moving parts, the transverse moving part is connected with the overload disconnecting part, and the transverse moving part is used to drive the overload disconnecting part to move, during which the overload disconnecting part applies the driving force required for the movement to the tumbling crushing part through the support platform, the overload disconnecting part is connected with a double-output shaft motor, one group of output ends of the double-output shaft motor is connected to the overload disconnecting part, and the other output end of the double-output shaft motor is fixedly connected with a first friction disk;

[0009] A weight assist mechanism connected to the frame is used to apply impact force to the cross impeller, and the first friction disc applies a resetting torque to the weight assist mechanism by rubbing against the weight assist mechanism.

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

[0011] As a further improvement of the present invention: the tumbling crushing part includes a half-cover body slidingly 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 coaxially fixedly connected to the cross impeller, and the end of the crushing roller away from the cross impeller is connected to the 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, the annular cover is fixedly connected to a storage oil shell, a first linear displacement sensor is installed in the storage oil shell, the moving end of the first linear displacement sensor is fixedly connected to a plug body slidably installed in the storage oil shell, a follower coaxially fixedly connected to the crushing roller is rotatably installed in the annular cover, a plurality of through holes connected to the inner cavity of the annular cover are provided on the follower, the follower is rotatably connected to an active part, a second spring is installed between the follower and the active part, the space between the active part, the driven part and the annular cover is connected to the space between the annular cover and the driven part through the through hole, and the active part is connected to the overload disconnecting part.

[0013] As a further improvement scheme of the present invention: the overload disconnecting part includes a second active telescopic rod connected to the transverse moving part, the moving end of the second active telescopic rod is fixedly connected to a linkage table slidably connected to the transverse moving part, the linkage table is connected to the double-output shaft motor by bolts, the protrusion of the linkage table is slidably connected to the support table, the support table 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 coaxially fixedly connected to the double-output shaft motor, the first ratchet frame is fixedly connected to a prism, the prism is slidably connected to a sleeve, a third spring fixedly connected to the prism is fixedly installed in the sleeve, and the sleeve is fixedly connected to the active part.

[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 movable 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 platform.

[0015] As a further improvement scheme of the present invention: the heavy hammer assist mechanism includes two groups of wire racks fixedly connected to the frame, the two groups of wire racks are symmetrically arranged, the wire racks are rotatably connected to the second friction disk, each group of second friction disks is coaxially fixedly connected to a wire wheel, the wire wheel is wrapped with a pull wire, the pull wire is slidably arranged in the wire rack, the two groups of pull wires are commonly fixedly connected to a group of counterweight blocks, the wire racks are fixed with a first active telescopic frame, and the moving end of the first active telescopic frame is fixedly connected to a plug block movably connected to the counterweight block.

[0016] As a further improvement of the present invention: a limiting bucket fixedly connected to the collecting shell is arranged below the cross impeller.

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

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

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] When in use, the double-output shaft motor transmits torque to the driving overload disconnecting part, and the overload disconnecting part transmits torque to the transmission pressure measuring part, so that the transmission pressure measuring part drives the rolling crushing part to crush the put in material, and then the crushed material falls into the collecting shell, and then the screening mechanism screens the crushed material. When the material is too large or too hard, the double-output shaft motor outputs the maximum torque, but the material put into the rolling crushing part prevents the rolling crushing part from crushing normally. At this time, the overload disconnecting part reduces the The load of the double-output shaft motor is to prevent the double-output shaft motor from being overloaded and burned, and as the transmission pressure measuring part measures that the transmission torque increases to the warning value, the heavy hammer assist mechanism starts and applies impact force to the cross impeller. If, with the assistance of the heavy hammer assist mechanism, the cross impeller and the transmission pressure measuring part jointly drive the tumbling crushing part and make the tumbling crushing part crush the stuck material, the tumbling crushing part will operate normally. If, with the assistance of the heavy hammer assist mechanism, the material is still stuck between the tumbling crushing parts, the machine will be stopped for inspection to clean up the stuck material. The present invention provides overload protection for the double-output shaft motor when the tumbling crushing part is stuck with material through the cooperation of the crushing mechanism and the heavy hammer assist mechanism, and uses the heavy hammer assist mechanism to hammer the cross impeller to assist the operation of the tumbling crushing part, thereby reducing the frequency of shutdown inspections due to material jamming in the present invention and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 3 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the transmission pressure measuring part, the overload disconnecting part, the double-output shaft motor and the first friction disk of the present invention;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of another perspective of the transmission pressure measuring part, the overload disconnecting part, the double-output shaft motor, and the first friction disk of the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the annular cover, the oil storage shell, the first linear displacement sensor, and the plug body of the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the cooperation of the driven member, the through hole and the active member of the present invention;

[0028] Figure 8 A three-dimensional structural schematic diagram of another perspective of the cooperation between the driven member, the through hole, and the active member of the present invention;

[0029] Fig. 9 It is a schematic diagram of the structure of the prism and the sleeve of the present invention;

[0030] Fig.10 It is a three-dimensional structural schematic diagram of the heavy hammer assisting mechanism of the present invention;

[0031] Fig.11 It is a three-dimensional structural schematic diagram of the heavy hammer assist mechanism of the present invention from another perspective.

[0032] In the figure: 1, frame; 2, screening mechanism; 3, crushing mechanism; 4, collecting shell; 5, rolling crushing part; 6, cross impeller; 7, support platform; 8, transmission pressure measuring part; 9, overload disconnection part; 10, transverse part; 11, double-output shaft motor; 12, first friction plate; 13, heavy hammer assist mechanism; 14, rectangular cover; 15, frame; 16, screen; 17, vibration motor; 18, half cover; 19, crushing roller; 20, annular cover; 21, oil storage shell; 22, first linear displacement sensor; 23, plug body; 24, follower; 25, through hole ; 26. Active part; 27. Second active telescopic rod; 28. Linkage platform; 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. Transverse frame; 37. Wire frame; 38. Second friction disc; 39. Wire wheel; 40. Pull wire; 41. Counterweight; 42. First active telescopic frame; 43. Insert block; 44. Limit bucket; 45. Arc cover; 46. Electromagnet; 47. Blanking plate; 48. Collecting door; 49. Anti-slip frame. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

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

[0035] A screening mechanism 2 connected to the frame 1, the screening mechanism 2 is used to separate and screen the crushed materials;

[0036] A crushing mechanism 3 connected to the screening mechanism 2, the crushing mechanism 3 includes a collecting shell 4 fixedly installed on the top of the screening mechanism 2, two groups of symmetrically arranged tumbling crushing parts 5 are slidably installed on the top of the collecting shell 4, under normal circumstances, the two groups of tumbling crushing parts 5 are in a state of abutting each other, and the two groups of tumbling crushing parts 5 jointly crush the thrown materials, the tumbling crushing part 5 is coaxially connected with a cross impeller 6, the cross impeller 6 specifically consists of a group of wheel bodies coaxially fixedly connected to the tumbling crushing part 5 and four groups of blades fixedly installed on the wheel body at equal angles in the axial direction, the tumbling crushing part 5 is connected with a support platform 7, and the support platform 7 is fixedly connected to The transmission pressure measuring part 8 connected to the rolling crushing part 5, the transmission pressure measuring part 8 is connected to the overload disconnecting part 9, the overload disconnecting part 9 is connected to the support platform 7, the frame 1 is connected to two groups of symmetrically arranged transverse moving parts 10, the transverse moving part 10 is connected to the overload disconnecting part 9, the transverse moving part 10 is used to drive the overload disconnecting part 9 to move, during which the overload disconnecting part 9 applies the driving force required for the movement to the rolling crushing part 5 through the support platform 7, the overload disconnecting part 9 is connected to a double-output shaft motor 11, one group of output ends of the double-output shaft motor 11 is connected to the overload disconnecting part 9, and the other output end of the double-output shaft motor 11 is fixedly connected to a first friction disk 12;

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

[0038] When in use, the double-output shaft motor 11 transmits the torque to the driving overload disconnecting part 9, and the overload disconnecting part 9 transmits the torque to the transmission pressure measuring part 8, so that the transmission pressure measuring part 8 drives the tumbling crushing part 5 to crush the put in material, and then the crushed material falls into the collecting shell 4, and then the screening mechanism 2 screens the crushed material. When the material is too large or too hard, the double-output shaft motor 11 outputs the maximum torque, but the material put into the tumbling crushing part 5 prevents the tumbling crushing part 5 from crushing normally. At this time, the overload disconnecting part 9 reduces the double output by self-separation. The load of the double-shaft motor 11 is prevented from being overloaded and burned by the double-shaft motor 11, and as the transmission pressure measuring part 8 measures that the transmission torque increases to the warning value, the heavy hammer assist mechanism 13 starts and applies impact force to the cross impeller 6. If, with the assistance of the heavy hammer assist mechanism 13, the cross impeller 6 and the transmission pressure measuring part 8 jointly drive the tumbling crushing part 5 and make the tumbling crushing part 5 crush the stuck material, the tumbling crushing part 5 will operate normally. If, with the assistance of the heavy hammer assist mechanism 13, the material is still stuck in the tumbling crushing part 5, the machine will be stopped for inspection to clean the stuck material. The present invention provides overload protection for the double-shaft motor 11 when the tumbling crushing part 5 is stuck by the material through the cooperation of the crushing mechanism 3 and the heavy hammer assist mechanism 13, and uses the heavy hammer assist mechanism 13 to hammer the cross impeller 6 to assist the operation of the tumbling crushing part 5, thereby reducing the frequency of stopping for inspection due to the material being stuck in the present invention and improving the processing efficiency.

[0039] In one case of the present embodiment, the screening mechanism 2 includes a rectangular cover 14 fixedly connected to the frame 1, a frame 15 is slidably installed in the rectangular cover 14, a screen 16 is fixedly connected to the frame 15, a plurality of first springs are connected to the frame 15, one end of the first spring away from the frame 15 is 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 the collecting shell 4, the rectangular cover 14 is movably connected to a box door, and the material accumulated on the screen 16 is cleaned by opening the box door. The collecting shell 4 introduces the crushed material into the rectangular cover 14, and then under the action of gravity, the crushed material falls onto the screen 16, the vibration motor 17 performs automatic vibration operation, the vibration motor 17 drives the frame 15 to perform vibration operation, and the frame 15 drives the screen 16 to perform reciprocating vibration operation along a straight line to screen the crushed material.

[0040] In one case of this embodiment, the tumbling crushing part 5 includes a half-cover 18 that is slidably connected to the collecting shell 4. After the two groups of half-covers 18 are connected, the two groups of half-covers 18 together form a bucket-shaped structure. The half-cover 18 is fixedly connected to the support platform 7. The half-cover 18 is rotatably connected to a crushing roller 19. One end of the crushing roller 19 is coaxially fixedly connected to the cross impeller 6. The end of the crushing roller 19 away from the cross impeller 6 is connected to the transmission pressure measuring part 8. The transmission pressure measuring part 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 hit by the heavy hammer assist mechanism 13, the cross impeller 6 transmits torque to the crushing roller 19.

[0041] In one case of the present embodiment, the transmission pressure measuring part 8 includes an annular cover 20 fixedly connected to the support platform 7, the annular cover 20 is fixedly connected to a storage oil shell 21, a cavity is arranged in the storage oil shell 21, the inner cavity of the storage oil shell 21 is communicated with the inner cavity of the annular cover 20, a first linear displacement sensor 22 is installed in the storage oil shell 21, the moving end of the first linear displacement sensor 22 is fixedly connected to a plug body 23 slidably installed in the storage oil shell 21, a follower 24 coaxially fixedly connected to the crushing roller 19 is rotatably installed in the annular cover 20, and the follower The member 24 is provided with a plurality of through holes 25 connected with the inner cavity of the annular cover 20. The driven member 24 is rotatably connected with the active member 26, and the active member 26 is rotatably installed on the driven member 24. A second spring is installed between the driven member 24 and the active member 26. The space between the active member 26, the driven member 24 and the annular cover 20 and the space between the annular cover 20 and the driven member 24 are connected through the through holes 25. The active member 26 is connected with the overload disconnecting portion 9. The space between the active member 26, the driven member 24 and the annular cover 20 and the space between the annular cover 20 and the driven member 24 are all filled with hydraulic oil. The overload disconnecting portion 9 drives the active member 26 to rotate, and the active member 26 presses the driven member 24 through the second spring. As the torque applied by the active member 26 increases, the second spring is compressed, and the space between the active member 26 and the driven member 24 is compressed, and 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, and the first linear displacement sensor 22 detects the movement of the plug body 23, so that the console determines the torque applied to 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 case of the present embodiment, the overload disconnecting part 9 includes a second active telescopic rod 27 connected to the transverse moving part 10, and the second active telescopic rod 27 can be selected as 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 table 28 slidably connected to the transverse moving part 10, and the linkage table 28 is connected to the double-output shaft motor 11 by bolts. The protrusion of the linkage table 28 is slidably connected to the support table 7, and the support table 7 is fixedly connected to an elastic telescopic frame 29, and the moving end of the elastic telescopic frame 29 is fixedly connected to a rotation limit frame 30, and the linkage table 28 is fixedly connected There is a track slidably connected to the rotating limit frame 30, and the track is used to provide a moving guide for the rotating limit frame 30. The rotating limit frame 30 is rotatably connected to the first ratchet frame 31, and the first ratchet frame 31 is movably connected to the second ratchet frame 32 coaxially fixedly connected to the double-output shaft motor 11. The first ratchet frame 31 and the second ratchet frame 32 are both provided with inclined surfaces that fit each other. The first ratchet frame 31 is fixedly connected to the prism 33, and the prism 33 is slidably connected to the sleeve 34. A third spring fixedly connected to the prism 33 is fixedly installed in the sleeve 34, and the sleeve 34 is fixedly connected to the active member 26. Under normal circumstances, the double-output shaft motor 11 drives the second ratchet frame 32 to rotate, the second ratchet frame 32 squeezes and drives the first ratchet frame 31 to rotate, the first ratchet frame 31 drives the prism 33 to rotate, the prism 33 drives the sleeve 34 to rotate, and the sleeve 34 drives the active member 26 to rotate. After the tumbling crushing part 5 is stuck, the rotating second ratchet frame 32 and the first ratchet frame 31 squeeze each other. At this time, due to the excessive pressure between the second ratchet frame 32 and the first ratchet frame 31, the first ratchet frame 31 is pressed, and the first ratchet frame 31 drives the rotating limit frame 30 to move. The rotating limit frame 30 compresses the elastic telescopic frame 29, causing the second ratchet frame 32 to separate from the first ratchet frame 31, that is, the second ratchet frame 32 continues to rotate. The first ratchet frame 31 vibrates along the extension direction of the elastic telescopic frame 29 but does not rotate, so as to prevent the double-output shaft motor 11 from being overloaded and burned. When the second active telescopic rod 27 contracts, the second active telescopic rod 27 drives the linkage table 28 to move, and the linkage table 28 slides relative to the support table 7. The linkage table 28 drives the double-output shaft motor 11 to move toward the heavy hammer assist mechanism 13, so that the first friction disk 12 abuts against the heavy hammer assist mechanism 13. At this time, the first ratchet frame 31 and the second ratchet frame 32 are in a state of separation from each other. At this time, the double-output shaft motor 11 drives the first friction disk 12 to rotate, and the first friction disk 12 transmits the torque to the heavy hammer processing mechanism 13 by friction, so as to drive the heavy hammer assist mechanism 13 to reset.

[0043] In one case of this embodiment, the transverse moving part 10 includes a third active telescopic rod 35 fixedly connected to the frame 1, the movable end of the third active telescopic rod 35 is fixedly connected to a transverse moving frame 36 slidably connected to the frame 1, the transverse moving frame 36 is fixedly connected to the second active telescopic rod 27, and the transverse moving frame 36 is slidably connected to the linkage platform 28. The third active telescopic rod 35 drives the transverse moving frame 36 to move, the transverse moving frame 36 drives the two groups of linkage platforms 28 to move away from each other, and the linkage platform 28 drives the half-cover body 18 to move away from each other through the support platform 7, so that the two groups of crushing rollers 19 move away from each other, so as to facilitate the cleaning of the materials stuck between the two groups of crushing rollers 19.

[0044] In one case of the present embodiment, the heavy hammer assist mechanism 13 includes two groups of wire racks 37 fixedly connected to the frame 1, and the two groups of wire racks 37 are symmetrically arranged. The wire racks 37 are rotatably connected to the second friction disks 38, and each group of second friction disks 38 is coaxially fixedly connected to a group of wire wheels 39, and the wire wheels 39 are wound with pull wires 40, and the pull wires 40 are slidably arranged in the wire racks 37. Multiple groups of support wheels are rotatably installed in the wire racks 37, and the support wheels are used to provide support for the pull wires 40. The two groups of pull wires 40 are commonly fixedly connected to a group of counterweights 41, and the wire racks 37 are fixed with a first active telescopic frame 42, and the moving end of the first active telescopic frame 42 is fixedly connected to an insertion block 43, and the insertion block 43 is movably connected to the counterweight 41. When the first friction disc 12 and the second friction disc 38 are squeezed against each other, the first friction disc 12 rubs against the second friction disc 38, so that the wire wheel 39 is wound around the pull wire 40 to raise the height of the counterweight 41, and then the first active telescopic frame 42 drives the insert block 43 to slide into the counterweight 41 to limit the movement of the counterweight 41. After the first friction disc 12 and the second friction disc 38 are separated and the first active telescopic frame 42 drives the insert block 43 to separate from the counterweight 41, the counterweight 41 falls, during which the counterweight 41 pulls the pull wire 40, and the wire wheel 39 releases the pull wire at the same time, so that the counterweight 41 impacts the cross-impeller 6, and 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 case of this embodiment, a limiting bucket 44 fixedly connected to the collecting shell 4 is provided below the cross impeller 6, and an anti-detachment blocking frame 49 is fixedly connected to the half cover 18, and the anti-detachment blocking frame 49 is provided above the cross impeller 6. During the falling process of the counterweight 41, after the counterweight 41 hits the cross impeller 6, if the counterweight 41 bounces up, the anti-detachment blocking frame 49 blocks the movement of the counterweight 41, and if the cross impeller 6 rotates under the impact, the counterweight 41 falls into the limiting bucket 44 to prevent the counterweight 41 from continuing to fall.

[0046] In one case of this embodiment, arc-shaped covers 45 are fixedly installed on both sides of the collection shell 4, and an electromagnet 46 is fixedly installed in the arc-shaped cover 45. The electromagnet 46 is connected to a blanking plate 47 slidably connected to the collection shell 4 through a fourth spring. The blanking plate 47 has ferromagnetism, and one end of the blanking plate 47 away from the arc-shaped cover 45 extends into the collection shell 4, and the blanking plate 47 is slidably connected to the arc-shaped cover 45. When it is necessary to remove the stuck material between the crushing rollers 19, the electromagnet 46 is powered off. At this time, under the push of the fourth spring on the blanking plate 47, the blanking plate 47 slides into the collection shell 4 and the two groups of blanking plates 47 abut, so that the blanking plate 47 blocks the material from falling into the screening mechanism 2.

[0047] Embodiment 2, based on embodiment 1, refer to Figure 1 A collecting door 48 is movably mounted on the collecting shell 4. By opening the collecting door 48, personnel can collect materials dropped on the blanking plate 47.

[0048] During the implementation of the present invention, the double-shaft motor 11 drives the second ratchet frame 32 to rotate, the second ratchet frame 32 squeezes and drives the first ratchet frame 31 to rotate, the first ratchet frame 31 drives the prism 33 to rotate, the prism 33 drives the sleeve 34 to rotate, the sleeve 34 drives the active member 26 to rotate, the active 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 put-in materials, and then the crushed materials fall into the collection shell 4, the collection shell 4 guides the crushed materials into the rectangular cover 14, and then under the action of gravity, the crushed materials fall onto the screen 16 On the top, the vibration motor 17 performs automatic vibration operation, the vibration motor 17 drives the frame 15 to perform vibration operation, and the frame 15 drives the screen 16 to perform reciprocating vibration operation 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 double-output shaft motor 11 reaches the maximum value. At this time, the rotating second ratchet frame 32 and the first ratchet frame 31 slide relative to each other, and the first ratchet frame 31 is pressed toward the elastic telescopic frame 29, and the rotating limit frame 30 drives the elastic telescopic frame 29 to be compressed, thereby reducing the load of the double-output shaft motor 11 and avoiding overload and burning of the double-output shaft motor 11. And as the transmission pressure measuring part 8 measures that the transmission torque increases to the warning value, the first active telescopic frame 42 drives the plug block 43 to disengage from the counterweight block 41, and the counterweight block 41 falls, so that the counterweight block 41 impacts the cross impeller 6. If, with the assistance of the heavy hammer assisting mechanism 13, the cross impeller 6 and the transmission pressure measuring part 8 jointly drive the tumbling crushing part 5 and the tumbling crushing part 5 crushes the stuck material, the tumbling crushing part 5 operates normally. If, with the assistance of the heavy hammer assisting mechanism 13, the material is still stuck between the two sets of crushing rollers 19, it is necessary to stop the machine for inspection to clean up the stuck material. During this period, the third active telescopic rod 35 drives the transverse frame 36 to move The transverse moving frame 36 drives the two groups of linkage tables 28 to move away from each other, and the linkage table 28 drives the half cover body 18 to move away from each other through the support table 7, so that the two groups of crushing rollers 19 move away from each other, and the electromagnet 46 is powered off. At this time, under the push of the fourth spring on the blanking plate 47, the blanking plate 47 slides into the collecting shell 4 and the two groups of blanking plates 47 abut against each other, so that the blanking plate 47 blocks the material from falling into the screening mechanism 2, and then it is convenient to collect the material falling on the blanking plate 47 by opening the collecting door 48, and then use the cutting equipment to cut the material, and then put the cut material back into the equipment, so that the equipment can crush the material again.

[0049] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A pulverizing device for rare earth polishing powder processing, comprising a frame, characterized in that: Also includes: A screening mechanism connected to the frame; A crushing mechanism connected to the screening mechanism, the crushing mechanism includes a collecting shell fixedly installed on the top of the screening mechanism, two groups of symmetrically arranged tumbling crushing parts are slidably installed on the top of the collecting shell, and the tumbling crushing parts are coaxially connected with a cross impeller, the tumbling crushing part is connected to a support platform, the support platform is fixedly connected with a transmission pressure measuring part connected to the tumbling crushing part, the transmission pressure measuring part is connected with an overload disconnecting part, and the overload disconnecting part is connected to the support platform, the frame is connected with two groups of symmetrically arranged transverse moving parts, the transverse moving part is connected with the overload disconnecting part, and the transverse moving part is used to drive the overload disconnecting part to move, during which the overload disconnecting part applies the driving force required for the movement to the tumbling crushing part through the support platform, the overload disconnecting part is connected with a double-output shaft motor, one group of output ends of the double-output shaft motor is connected to the overload disconnecting part, and the other output end of the double-output shaft motor is fixedly connected with a first friction disk; A weight assist mechanism connected to the frame is used to apply impact force to the cross impeller, and the first friction disc applies a resetting torque to the weight assist mechanism by rubbing against the weight assist mechanism.

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

3. A pulverizing device for rare earth polishing powder processing according to claim 1, characterized in that: The tumbling crushing part includes a half-cover body 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 coaxially fixedly connected to the cross impeller, and the end of the crushing roller away from the cross impeller is connected to the transmission pressure measuring part.

4. A pulverizing device for rare earth polishing powder processing according to claim 3, characterized in that: The transmission pressure measuring part includes an annular cover fixedly connected to the support platform, the annular cover is fixedly connected to an oil storage shell, a first linear displacement sensor is installed in the oil storage shell, the moving end of the first linear displacement sensor is fixedly connected to a plug body slidably installed in the oil storage shell, a follower coaxially fixedly connected to the crushing roller is rotatably installed in the annular cover, a plurality of through holes connected to the inner cavity of the annular cover are provided on the follower, the follower is rotatably connected to an active part, a second spring is installed between the follower and the active part, the space between the active part, the driven part and the annular cover is connected to the space between the annular cover and the driven part through the through hole, and the active part is connected to the overload disconnecting part.

5. A pulverizing device for rare earth polishing powder processing according to claim 4, characterized in that: The overload disconnecting part includes a second active telescopic rod connected to the transverse moving part, the moving end of the second active telescopic rod is fixedly connected to a linkage table slidably connected to the transverse moving part, the linkage table is connected to the double-output shaft motor by bolts, the protrusion of the linkage table is slidably connected to the support table, the support table 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 coaxially fixedly connected to the double-output shaft motor, the first ratchet frame is fixedly connected to a prism, the prism is slidably connected to a sleeve, a third spring fixedly connected to the prism is fixedly installed in the sleeve, and the sleeve is fixedly connected to the active part.

6. A pulverizing device for rare earth polishing powder processing according to claim 5, characterized in that: The transverse movement part includes a third active telescopic rod fixedly connected to the frame, the movable 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 platform.

7. A pulverizing device for rare earth polishing powder processing according to claim 1, characterized in that: The heavy hammer assist mechanism includes two groups of wire racks fixedly connected to the frame, the two groups of wire racks are symmetrically arranged, the wire racks are rotatably connected to the second friction disks, each group of second friction disks is coaxially fixedly connected to a wire wheel, the wire wheel is wrapped with a pull wire, the pull wire is slidably arranged in the wire rack, the two groups of pull wires are commonly fixedly connected to a group of counterweight blocks, the wire racks are fixedly connected to the first active telescopic frame, and the moving end of the first active telescopic frame is fixedly connected to a plug block movably connected to the counterweight block.

8. A pulverizing device for rare earth polishing powder processing according to claim 1, characterized in that: A limiting bucket fixedly connected to the collecting shell is arranged below the cross impeller.

9. A pulverizing device for rare earth polishing powder processing according to claim 1, characterized in that: Arc covers are fixedly installed on both sides of the collection shell, and an electromagnet is fixedly installed in the arc cover. The electromagnet is connected to a blanking plate slidably connected to the collection shell through a fourth spring, and the blanking plate is slidably connected to the arc cover.

10. A pulverizing device for rare earth polishing powder processing according to claim 1, characterized in that: A collecting door is movably mounted on the collecting shell.

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