Double-roller crushing device for fine particle production

Abstract

The invention belongs to the technical field of particle crushing, and particularly relates to a double-roller crushing device for fine particle production, the double-roller crushing device comprises a crushing roller position sensing mechanism, a self-vibration screening mechanism and a crushing driving mechanism, the self-vibration screening mechanism is arranged on the crushing roller position sensing mechanism, and the crushing driving mechanism is arranged on the crushing roller position sensing mechanism. The self-vibration screening mechanism and the crushing driving mechanism are provided, sliding of the screen can be automatically controlled through a mechanical control mode when the rollers are separated and make contact with each other again, and therefore the technical effect that materials are screened only when the rollers are separated is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of particle crushing, and specifically refers to a double-roll crushing device for producing fine particles. Background Art

[0002] In industrial production, fragments or large particles are usually processed into fine particles or even powder by roller crushing. The size of the crushed particles is often controlled by the grooves on the outer surface of the crushing roller. However, since ordinary crushing rollers are fixed, if the material to be crushed is mixed with some hard granular impurities (such as salt or other minerals, crystal fragments mixed with sand, etc.), it is easy to damage the surface texture of the roller.

[0003] The early screening of the material to be crushed is mostly carried out through a sieve, so impurities with particle sizes close to those of the material before crushing are difficult to be screened out. After one crushing, even if some materials are not completely crushed, a sieve with smaller mesh can still be selected for the second screening to screen out the above impurities. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a roller installation form capable of changing the spacing. In order to maintain the stable rotation of the two rollers and the rotation speed difference, the driving scheme is most preferably a rigid drive. However, in the traditional gear drive mode, the wheelbase of the two gears cannot be changed, otherwise it will cause rapid abnormal wear. In order to solve this problem, the present invention adopts a worm gear transmission form and a relatively simple and ingenious structural design, so that the axes of the two rollers can maintain a stable rigid connection when moving.

[0005] In addition, the sliding avoidance of the shaft will cause hard particles and materials that have not been completely crushed to fall, so it is necessary to set a screening device below the crushing. However, since the particles after the roller crushing are relatively small, the mesh of the screen below must be small. If the screen is placed directly below the roller, the screening efficiency will be much lower than the efficiency of the roller crushing, resulting in a limitation on the crushing efficiency. In addition, in most of the time when the rollers are not separated, the crushed product has passed the texture limitation of the roller surface, so there is no need to screen it again. In order to solve the above problems, the present invention proposes a self-vibrating screening mechanism and a crushing drive mechanism, which can automatically control the sliding of the screen when the rollers are separated and contacted again through mechanical control, thereby achieving the technical effect of screening the material only when the rollers are separated.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a double-roll crushing device for fine particle production, including a crushing roller position sensing mechanism, a self-vibrating screening mechanism and a crushing drive mechanism, the self-vibrating screening mechanism is arranged on the crushing roller position sensing mechanism, and the crushing drive mechanism is arranged on the crushing roller position sensing mechanism.

[0007] Furthermore, the crushing roller position sensing mechanism includes a sliding guide component, a clamping force regulating component, a sliding sensing component and a switch trigger component, wherein the clamping force regulating component is arranged on the sliding guide component, the sliding sensing component is arranged on the sliding guide component, and the switch trigger component is arranged in the sliding sensing component.

[0008] Through the structural design of the crushing roller position sensing mechanism, on the one hand, the crushing roller bodies can be allowed to move away from each other for avoidance, and on the other hand, the displacement of the two can be monitored, and the power supply of the transverse movement motor can be automatically connected after sensing that the two are moving away from each other. Therefore, the automatic start and stop of the transverse movement motor can be achieved without going through the electronic control module, only by opening and closing the physical switch.

[0009] Furthermore, the sliding guide assembly includes a side plate, a sliding bearing seat and a sliding guide block, the sliding bearing seat is slidably arranged on the side plate, the sliding guide block is arranged on the sliding bearing seat, the clamping force control assembly includes a screw rotation base, a bidirectional screw, a spring adjustment nut and a clamping spring, the screw rotation base is fixedly connected to the two ends of the side plate, the bidirectional screw rotation is arranged in the screw rotation base, an adjustment part is provided in the middle position of the bidirectional screw, the spring adjustment nut and the bidirectional screw are threadedly connected, the sliding guide block is slidably arranged on the optical axis part of the bidirectional screw, a nut guide rod is provided on the spring adjustment nut, the nut guide rod is slidably arranged in the screw rotation base, and the clamping spring is arranged between the spring adjustment nut and the sliding guide block.

[0010] The clamping spring can maintain the clamping force between the two crushing roller bodies at all times, so that the two crushing roller bodies always remain in close contact when crushing the target crystal. The surface texture of the crushing roller body can limit the size of the crushed particles. By rotating the bidirectional lead screw, the position of the spring adjustment nuts at both ends can be adjusted, thereby changing the initial clamping force of the clamping spring.

[0011] As a further preferred embodiment of the present invention, the sliding sensing assembly includes a sliding sleeve, a sliding rod and a threshold adjustment spring, the sliding sleeve is fixed to one of the sliding bearing seats, the sliding rod is fixed to the other sliding bearing seat, a sliding disk is provided on the sliding rod, the sliding disk is slidably engaged in the sliding sleeve, and the threshold adjustment spring is provided on the sliding disk.

[0012] As a further preferred embodiment of the present invention, the switch trigger assembly includes a threshold adjustment nut, a first contact piece and a second contact piece, the threshold adjustment nut and the sliding rod are threadedly connected, the first contact piece is fixed to the sliding sleeve, the second contact piece is fixed to the threshold adjustment nut, and the first contact piece and the second contact piece together constitute a circuit switch.

[0013] The relative sliding of the sliding sleeve and the sliding rod can provide feedback on the displacement of the crushing roller body; by rotating the threshold adjustment nut, the initial positions of the first contact piece and the second contact piece can be changed, thereby changing the displacement threshold of the crushing roller body when the transverse motor is triggered, thereby avoiding false triggering caused by machine vibration. Furthermore, the self-vibrating screening mechanism includes a transverse guide assembly, a self-vibrating screening assembly and a transverse drive assembly, the transverse guide assembly is arranged on the sliding guide assembly, the self-vibrating screening assembly is arranged on the transverse guide assembly, and the transverse drive assembly is arranged on the sliding guide assembly.

[0014] Through the automatic start and stop of the transverse movement motor, the self-vibrating screening component can be automatically pushed to the bottom of the crushing roller body when hard particles pass through the crushing roller body. During normal crushing, the self-vibrating screening component will automatically slide away, which means that the overall crushing efficiency will not be affected by the too slow screening speed, and incompletely crushed materials and impurities can be prevented from entering the lower hopper.

[0015] Furthermore, the transverse guide assembly includes a transverse guide rail, a transverse slider and a lifting boss portion, the transverse guide rail is fixedly connected to the inner side of the side vertical plate, the transverse slider is snap-fitted and slidably arranged on the transverse guide rail, and the lifting boss portion is fixedly connected to the bottom of the transverse guide rail and the transverse slider.

[0016] As a further preferred embodiment of the present invention, the self-vibrating screening assembly includes a transverse frame, a screen and a connecting spring. The transverse frame is fixed to the transverse slider, and the screen and the transverse frame are connected by a connecting spring.

[0017] The screen and the transverse frame are connected by a flexible connecting spring. Without setting any vibration drive and transmission device, the screen can be displaced laterally and reciprocatingly through the vibration of the mechanical equipment itself during operation, thereby ensuring screening efficiency and screening continuity.

[0018] As a further preferred embodiment of the present invention, the transverse driving assembly includes a liquid storage chamber, a hollow push rod, a pushing impeller, a transverse motor and a polygonal shaft. The liquid storage chamber is fixedly connected to the inner side of the side vertical plate, the hollow push rod is slidably arranged in the liquid storage chamber, the end of the liquid storage chamber is rotatably arranged in the lifting boss portion, the hollow push rod is also provided with a polygonal sliding chamber, the pushing impeller is snap-fitted at the other end of the hollow push rod, the pushing impeller is located in the liquid storage chamber, the transverse motor is fixedly connected to the side vertical plate, the output shaft of the transverse motor is connected to the polygonal shaft, and the polygonal shaft is snap-fitted and slidably arranged on the polygonal sliding chamber.

[0019] The hollow push rod always has a tendency to retract and reset under the elastic force of the return spring. Therefore, the transverse movement motor does not need to be energized under most working conditions, thereby reducing power consumption; when the impeller rotates, it will push the hollow push rod out under the action of the reaction force of the liquid, thereby temporarily pushing the screen to the bottom of the brush.

[0020] Furthermore, the crushing drive mechanism includes a crushing roller assembly and a crushing drive assembly, the crushing drive assembly is arranged on the outer side of the side plate, the crushing roller assembly includes a support bearing, a crushing roller body, a brush, an upper hopper and a lower hopper, the support bearing is arranged in a sliding bearing seat, and support spindles are provided at both ends of the crushing roller body, and the support spindles are engaged in the support bearings, the brush is fixed to the sliding guide assembly, the brush is in contact with the crushing roller body, the upper hopper is arranged on the external frame, the positions of the upper hopper and the side plate are relatively fixed, and the lower hopper is fixed to the side plate.

[0021] The brush can, on the one hand, clean the broken particles adhering to the surface of the crushing roller body, and on the other hand, limit the falling range and falling direction of the broken particles.

[0022] Furthermore, the crushing drive assembly includes a crushing motor, a spindle support, a crushing spindle, a hollow worm and a driving worm wheel, the crushing motor is arranged on the side vertical plate, the spindle support is arranged on the side vertical plate, the output shaft of the crushing motor is connected to the crushing spindle, the crushing spindle is rotatably arranged in the spindle support, the hollow worm is fixedly connected to the crushing spindle, the driving worm wheel is fixedly connected to the supporting spindle, and the hollow worm and the driving worm wheel are meshingly driven.

[0023] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The structural design of the crushing roller position sensing mechanism can, on the one hand, allow the crushing roller bodies to move away from each other for avoidance, and on the other hand, monitor the displacement of the two. After sensing that the two are moving away from each other, the power supply of the transverse movement motor can be automatically connected. In this way, the transverse movement motor can be automatically started and stopped by simply opening and closing the physical switch without going through the electronic control module.

[0024] (2) The clamping spring can maintain the clamping force between the two crushing roller bodies at all times, so that the two crushing roller bodies always remain in close contact when crushing the target crystal. The surface texture of the crushing roller body can limit the size of the crushed particles. By rotating the bidirectional lead screw, the position of the spring adjustment nuts at both ends can be adjusted, thereby changing the initial clamping force of the clamping spring.

[0025] (3) The displacement of the crushing roller body can be fed back through the relative sliding of the sliding sleeve and the sliding rod; the initial positions of the first contact piece and the second contact piece can be changed by rotating the threshold adjustment nut, thereby changing the displacement threshold of the crushing roller body when the transverse movement motor is triggered, thereby avoiding false triggering caused by machine vibration.

[0026] (4) Through the automatic start and stop of the transverse movement motor, the self-vibrating screening component can be automatically pushed to the bottom of the crushing roller body when hard particles pass through the crushing roller body. During normal crushing, the self-vibrating screening component will automatically slide away, that is, the overall crushing efficiency will not be affected by the too slow screening speed, and the incompletely crushed materials and impurities can be prevented from entering the lower hopper.

[0027] (5) The screen and the transverse frame are connected by a flexible connecting spring. Without setting any vibration drive and transmission device, the screen can be reciprocated laterally through the vibration of the mechanical equipment itself during operation, thereby ensuring the screening efficiency and continuity of screening.

[0028] (6) The hollow push rod always has a tendency to retract and reset under the elastic force of the reset spring. Therefore, under most working conditions, the transverse movement motor does not need to be energized, thereby reducing power consumption; when the impeller rotates, it will push the hollow push rod out under the action of the reaction force of the liquid, thereby temporarily pushing the screen to the bottom of the brush.

[0029] (7) The brush can not only clean the crushed particles adhering to the surface of the crushing roller, but also limit the falling range and direction of the crushed particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of an explosion of a double-roll crushing device for fine particle production proposed by the present invention; Figure 2 A front view of a double-roll crushing device for fine particle production proposed by the present invention; Figure 3 This is a left side view of a double roller crushing device for fine particle production proposed by the present invention; Figure 4 A top view of a double-roll crushing device for fine particle production proposed by the present invention; Figure 5 for Figure 2 A cross-sectional view along the cutting line AA; Figure 6 for Figure 4 A cross-sectional view along the cutting line BB; Figure 7 for Figure 4 A cross-sectional view along the cutting line CC; Figure 8 for Figure 4 A cross-sectional view along the cutting line DD; Fig. 9 A three-dimensional diagram of a double-roll crushing device for fine particle production proposed by the present invention; Fig.10 for Figure 8 A partial enlarged view of point Ⅰ in the middle; Fig.11 for Figure 5 A partial enlarged view of the middle II; Fig.12 for Figure 7 A partial enlarged view of the middle part III; Fig.13 for Figure 1 A partial enlarged view of the middle IV; Fig.14 It is a schematic diagram of the connection circuit of the first contact piece, the second contact piece and the transverse movement motor.

[0031] Among them, 1. Crushing roller position sensing mechanism, 2. Self-vibration screening mechanism, 3. Crushing drive mechanism, 4. Sliding guide assembly, 5. Clamping force control assembly, 6. Sliding sensing assembly, 7. Switch trigger assembly, 8. Side plate, 9. Sliding bearing seat, 10. Sliding guide block, 11. Screw rotating base, 12. Bidirectional screw, 13. Spring adjustment nut, 14. Clamping spring, 15. Sliding sleeve, 16. Sliding rod, 17. Threshold adjustment spring, 18. Threshold adjustment nut, 19. First contact piece, 20. Second contact piece, 21. Adjustment part, 22. Nut guide rod, 23. Sliding disk, 24. Transverse guide assembly, 25. Self-vibration Screening assembly, 26, transverse drive assembly, 27, transverse guide rail, 28, transverse slider, 29, lifting boss, 30, transverse frame, 31, screen, 32, connecting spring, 33, liquid storage chamber, 34, hollow push rod, 35, pushing impeller, 36, transverse motor, 37, polygonal shaft, 38, polygonal sliding chamber, 39, crushing roller assembly, 40, crushing drive assembly, 41, supporting bearing, 42, crushing roller body, 43, brush, 44, upper hopper, 45, lower hopper, 46, crushing motor, 47, main shaft support, 48, crushing main shaft, 49, hollow worm, 50, driving worm gear, 51, supporting main shaft, 52, reset spring.

[0032] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0035] like Figure 1 to Figure 13 As shown, the present invention proposes a double-roll crushing device for fine particle production, including a crushing roller position sensing mechanism 1, a self-vibrating screening mechanism 2 and a crushing drive mechanism 3, the self-vibrating screening mechanism 2 is arranged on the crushing roller position sensing mechanism 1, and the crushing drive mechanism 3 is arranged on the crushing roller position sensing mechanism 1.

[0036] The crushing roller position sensing mechanism 1 includes a sliding guide component 4, a clamping force regulating component 5, a sliding sensing component 6 and a switch trigger component 7. The clamping force regulating component 5 is arranged on the sliding guide component 4, the sliding sensing component 6 is arranged on the sliding guide component 4, and the switch trigger component 7 is arranged in the sliding sensing component 6.

[0037] Through the structural design of the crushing roller position sensing mechanism 1, on the one hand, the crushing roller bodies 42 can be allowed to move away from each other for avoidance, and on the other hand, the displacement of the two can be monitored, and the power supply of the transverse movement motor 36 can be automatically connected after sensing that the two are moving away from each other, so that the automatic start and stop of the transverse movement motor 36 can be achieved without going through the electronic control module, only by opening and closing the physical switch.

[0038] The sliding guide assembly 4 includes a side plate 8, a sliding bearing seat 9 and a sliding guide block 10. The sliding bearing seat 9 is slidably arranged on the side plate 8, and the sliding guide block 10 is arranged on the sliding bearing seat 9. The clamping force control assembly 5 includes a screw rotating base 11, a bidirectional screw 12, a spring adjustment nut 13 and a clamping spring 14. The screw rotating base 11 is fixedly connected to the two ends of the side plate 8, and the bidirectional screw 12 is rotatably arranged in the screw rotating base 11. An adjustment part 21 is provided in the middle position of the bidirectional screw 12. The spring adjustment nut 13 and the bidirectional screw 12 are threadedly connected. The sliding guide block 10 is slidably arranged on the optical axis part of the bidirectional screw 12. A nut guide rod 22 is provided on the spring adjustment nut 13. The nut guide rod 22 is slidably arranged in the screw rotating base 11, and the clamping spring 14 is arranged between the spring adjustment nut 13 and the sliding guide block 10.

[0039] The clamping spring 14 can maintain a clamping force between the two crushing roller bodies 42 at all times, so that the two crushing roller bodies 42 always remain in close contact when crushing the target crystal. The surface texture of the crushing roller body 42 can limit the size of the crushed particles. By rotating the bidirectional screw 12, the position of the spring adjustment nuts 13 at both ends can be adjusted, thereby changing the initial clamping force of the clamping spring 14.

[0040] The sliding sensing assembly 6 includes a sliding sleeve 15, a sliding rod 16 and a threshold adjustment spring 17. The sliding sleeve 15 is fixedly connected to one of the sliding bearing seats 9, and the sliding rod 16 is fixedly connected to the other sliding bearing seat 9. A sliding disk 23 is provided on the sliding rod 16. The sliding disk 23 is slidably engaged in the sliding sleeve 15, and the threshold adjustment spring 17 is provided on the sliding disk 23.

[0041] The switch trigger assembly 7 includes a threshold adjustment nut 18, a first contact piece 19 and a second contact piece 20. The threshold adjustment nut 18 and the sliding rod 16 are threadedly connected. The first contact piece 19 is fixed to the sliding sleeve 15, and the second contact piece 20 is fixed to the threshold adjustment nut 18. The first contact piece 19 and the second contact piece 20 together constitute a circuit switch.

[0042] The relative sliding of the sliding sleeve 15 and the sliding rod 16 can provide feedback on the displacement of the crushing roller body 42; the initial positions of the first contact piece 19 and the second contact piece 20 can be changed by rotating the threshold adjustment nut 18, thereby changing the displacement threshold of the crushing roller body 42 when the transverse motor 36 is triggered, thereby avoiding false triggering caused by machine vibration. The pulverizing drive mechanism 3 includes a pulverizing roller assembly 39 and a pulverizing drive assembly 40. The pulverizing drive assembly 40 is arranged on the outer side of the side plate 8. The pulverizing roller assembly 39 includes a support bearing 41, a pulverizing roller body 42, a brush 43, an upper hopper 44 and a lower hopper 45. The support bearing 41 is arranged in the sliding bearing seat 9. Support main shafts 51 are provided at both ends of the pulverizing roller body 42. The support main shaft 51 is engaged in the support bearing 41. The brush 43 is fixed to the sliding guide assembly 4. The brush 43 is in contact with the pulverizing roller body 42. The upper hopper 44 is arranged on the external frame. The positions of the upper hopper 44 and the side plate 8 are relatively fixed. The lower hopper 45 is fixed to the side plate 8.

[0043] The brush 43 can, on the one hand, clean the broken particles adhering to the surface of the pulverizing roller body 42, and on the other hand, limit the falling range and falling direction of the broken particles.

[0044] The crushing drive assembly 40 includes a crushing motor 46, a main shaft support 47, a crushing main shaft 48, a hollow worm 49 and a driving worm wheel 50. The crushing motor 46 is arranged on the side plate 8, the main shaft support 47 is arranged on the side plate 8, the output shaft of the crushing motor 46 is connected to the crushing main shaft 48, the crushing main shaft 48 is rotatably arranged in the main shaft support 47, the hollow worm 49 is fixedly connected to the crushing main shaft 48, the driving worm wheel 50 is fixedly connected to the supporting main shaft 51, and the hollow worm 49 and the driving worm wheel 50 are meshed for transmission.

[0045] The self-vibrating screening mechanism 2 includes a transverse guide assembly 24, a self-vibrating screening assembly 25 and a transverse drive assembly 26. The transverse guide assembly 24 is arranged on the sliding guide assembly 4, the self-vibrating screening assembly 25 is arranged on the transverse guide assembly 24, and the transverse drive assembly 26 is arranged on the sliding guide assembly 4.

[0046] By automatically starting and stopping the transverse movement motor 36, the self-vibrating screening assembly 25 can be automatically pushed to the bottom of the crushing roller body 42 when hard particles pass through the crushing roller body 42. During normal crushing, the self-vibrating screening assembly 25 will automatically slide away, that is, the overall crushing efficiency will not be affected by the too slow screening speed, and incompletely crushed materials and impurities can be prevented from entering the lower hopper 45.

[0047] The transverse guide assembly 24 includes a transverse guide rail 27, a transverse slider 28 and a lifting boss portion 29. The transverse guide rail 27 is fixedly connected to the inner side of the side vertical plate 8, the transverse slider 28 is slidably engaged on the transverse guide rail 27, and the lifting boss portion 29 is fixedly connected to the bottom of the transverse guide rail 27 and the transverse slider 28.

[0048] The self-vibrating screening assembly 25 includes a transverse frame 30 , a screen 31 and a connecting spring 32 . The transverse frame 30 is fixedly connected to the transverse slider 28 , and the screen 31 and the transverse frame 30 are connected via the connecting spring 32 .

[0049] The screen 31 and the transverse frame 30 are connected by a flexible connecting spring 32. Without setting any vibration drive and transmission device, the screen 31 can be displaced laterally and reciprocatingly through the vibration of the mechanical equipment itself during operation, thereby ensuring screening efficiency and screening continuity.

[0050] The transverse driving assembly 26 includes a liquid storage chamber 33, a hollow push rod 34, a pushing impeller 35, a transverse motor 36 and a polygonal shaft 37. The liquid storage chamber 33 is fixedly connected to the inner side of the side plate 8. The hollow push rod 34 is slidably arranged in the liquid storage chamber 33. The end of the liquid storage chamber 33 is rotatably arranged in the lifting boss portion 29. A polygonal sliding chamber 38 is also provided on the hollow push rod 34. The pushing impeller 35 is snap-fitted at the other end of the hollow push rod 34. The pushing impeller 35 is located in the liquid storage chamber 33. The transverse motor 36 is fixedly connected to the side plate 8. The output shaft of the transverse motor 36 is connected to the polygonal shaft 37. The polygonal shaft 37 is snap-fitted and slidably arranged on the polygonal sliding chamber 38.

[0051] The hollow push rod 34 always has a tendency to retract and reset under the elastic force of the reset spring 52, so the transverse movement motor 36 does not need to be energized under most working conditions, thereby reducing power consumption; when the impeller 35 rotates, it will push the hollow push rod 34 outward under the action of the reaction force of the liquid, thereby temporarily pushing the screen 31 to the bottom of the brush 43.

[0052] like Fig.14 As shown, the first contact piece 19 and the second contact piece 20 together form a switch of the circuit, and this switch is connected in series with the transverse motor 36 in the same circuit.

[0053] When in use, the user first needs to start the crushing motor 46, and the crushing main shaft 48 drives the two hollow worms 49 to rotate. Since the hollow worms 49 are meshed with the driving worm wheel 50, the rotation of the hollow worms 49 drives the crushing roller body 42 to rotate together. The two pairs of worm gear transmission mechanisms are designed with different transmission directions and transmission ratios, so that the two crushing roller bodies 42 can roll relative to each other at different rotation speeds, so that while squeezing and crushing, the materials to be crushed can also be sent between the crushing roller bodies 42 by friction. Then, the material to be crushed is dropped into the gap between the two crushing roller bodies 42 through the upper hopper 44, and crushed by the extrusion and friction of the crushing roller bodies 42; due to the hardness of the crystal, the material to be crushed can be crushed by the crushing roller bodies 42 and fall through the grooves of the crushing roller bodies 42, and when passing through the brush 43, it will be brushed down by the brush 43 and enter the lower hopper 45; If hard impurities such as sand particles pass through the crushing roller body 42, the crushing roller body 42 will overcome the elastic force of the clamping spring 14 and move away from each other. At this time, the impurities will fall together with the incompletely crushed materials. When the two sliding bearing seats 9 move away from each other, the first contact piece 19 and the second contact piece 20, which originally had only a very small gap, will come into contact. Then, during the continued sliding of the sliding bearing seat 9, the first contact piece 19 and the second contact piece 20 are kept in contact by the compression of the threshold value adjustment spring 17. After the first contact piece 19 and the second contact piece 20 come into contact, the circuit where the transverse movement motor 36 is located is energized. When the transverse movement motor 36 is started, the hollow push rod 34 and the impeller 35 are driven to rotate through the polygonal shaft 37. When the impeller 35 rotates, it will be subjected to the reaction force of the liquid inside the liquid storage chamber 33, so that the hollow push rod 34 pushes the lifting boss part 29 to slide while rotating; at this time, the self-vibrating screening assembly 25 as a whole slides to the bottom of the brush 43, and impurities together with incompletely crushed materials will fall into the self-vibrating screening assembly 25. When the impurities pass through and the crushing roller body 42 is re-attached, the first contact piece 19 and the second contact piece 20 are separated, the transverse movement motor 36 stops, and the lifting boss part 29 and the hollow push rod 34 will be reset under the elastic force of the reset spring 52.

[0054] After the vibrating screening assembly 25 is reset with the impurities and the insufficiently crushed materials, the mechanical equipment itself will vibrate when it moves, and the transverse frame 30 and the screen 31 are connected by the connecting spring 32. Therefore, the screen 31 will reciprocate continuously, so that the material in the screen 31 is screened, and the part of the material that has been fully crushed will also fall into the lower hopper 45, and the rest of the material will remain in the screen 31 for regular recovery, screening and secondary crushing.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A double-roll crushing device for fine particle production, characterized in that: It comprises a crushing roller position sensing mechanism (1), a self-vibrating screening mechanism (2) and a crushing driving mechanism (3), wherein the self-vibrating screening mechanism (2) is arranged on the crushing roller position sensing mechanism (1), and the crushing driving mechanism (3) is arranged on the crushing roller position sensing mechanism (1); The crushing roller position sensing mechanism (1) comprises a sliding guide component (4), a clamping force regulating component (5), a sliding sensing component (6) and a switch trigger component (7), wherein the clamping force regulating component (5) is arranged on the sliding guide component (4), the sliding sensing component (6) is arranged on the sliding guide component (4), and the switch trigger component (7) is arranged in the sliding sensing component (6); The self-vibrating screening mechanism (2) comprises a transverse guide assembly (24), a self-vibrating screening assembly (25) and a transverse drive assembly (26); the transverse guide assembly (24) is arranged on the sliding guide assembly (4); the self-vibrating screening assembly (25) is arranged on the transverse guide assembly (24); and the transverse drive assembly (26) is arranged on the sliding guide assembly (4).

2. The double-roll crushing device for fine particle production according to claim 1, characterized in that: The sliding guide assembly (4) comprises a side plate (8), a sliding bearing seat (9) and a sliding guide block (10); the sliding bearing seat (9) is slidably mounted on the side plate (8); the sliding guide block (10) is mounted on the sliding bearing seat (9); the clamping force regulating assembly (5) comprises a screw rotating base (11), a bidirectional screw (12), a spring adjusting nut (13) and a clamping spring (14); the screw rotating base (11) is fixedly connected to both ends of the side plate (8); the bidirectional screw (12) is rotatably mounted on the screw In the rod rotating base (11), an adjustment portion (21) is provided at the middle position of the bidirectional screw (12), the spring adjustment nut (13) and the bidirectional screw (12) are threadedly connected, the sliding guide block (10) is slidably arranged on the optical axis of the bidirectional screw (12), the spring adjustment nut (13) is provided with a nut guide rod (22), the nut guide rod (22) is snap-fitted and slidably arranged in the screw rotating base (11), and the clamping spring (14) is arranged between the spring adjustment nut (13) and the sliding guide block (10).

3. A double-roll crushing device for fine particle production according to claim 2, characterized in that: The sliding sensing component (6) comprises a sliding sleeve (15), a sliding rod (16) and a threshold value adjustment spring (17); the sliding sleeve (15) is fixedly connected to one of the sliding bearing seats (9); the sliding rod (16) is fixedly connected to the other of the sliding bearing seats (9); a sliding disk (23) is provided on the sliding rod (16); the sliding disk (23) is slidably engaged in the sliding sleeve (15); and the threshold value adjustment spring (17) is provided on the sliding disk (23).

4. The double-roll crushing device for producing fine particles according to claim 3, characterized in that: The switch trigger assembly (7) comprises a threshold value adjustment nut (18), a first contact piece (19) and a second contact piece (20); the threshold value adjustment nut (18) and the sliding rod (16) are threadedly connected; the first contact piece (19) is fixedly connected to the sliding sleeve (15); the second contact piece (20) is fixedly connected to the threshold value adjustment nut (18); and the first contact piece (19) and the second contact piece (20) together constitute a circuit switch.

5. The double-roll crushing device for fine particle production according to claim 4, characterized in that: The transverse guide assembly (24) includes a transverse guide rail (27), a transverse slider (28), a return spring (52) and a lifting boss portion (29), wherein the transverse guide rail (27) is fixedly connected to the inner side of the side vertical plate (8), the transverse slider (28) is slidably engaged on the transverse guide rail (27), the lifting boss portion (29) is fixedly connected below the transverse guide rail (27) and the transverse slider (28), and one end of the return spring (52) is disposed on the lifting boss portion (29).

6. The double-roll crushing device for producing fine particles according to claim 5, characterized in that: The self-vibrating screening assembly (25) comprises a transverse frame (30), a screen (31) and a connecting spring (32); the transverse frame (30) is fixedly connected to a transverse slider (28); and the screen (31) and the transverse frame (30) are connected via a connecting spring (32).

7. The double-roll crushing device for fine particle production according to claim 6, characterized in that: The transverse driving assembly (26) includes a liquid storage chamber (33), a hollow push rod (34), a driving impeller (35), a transverse motor (36) and a polygonal shaft (37). The liquid storage chamber (33) is fixedly connected to the inner side of the side plate (8). The hollow push rod (34) is slidably arranged in the liquid storage chamber (33). The end of the liquid storage chamber (33) is rotatably arranged in the lifting boss portion (29). A polygonal sliding chamber (38) is also provided on the hollow push rod (34). The driving impeller (35) is snap-fitted to the other end of the hollow push rod (34). The driving impeller (35) is located in the liquid storage chamber (33). The transverse motor (36) is fixedly connected to the side plate (8). The output shaft of the transverse motor (36) is connected to the polygonal shaft (37). The polygonal shaft (37) is snap-fitted and slidably arranged on the polygonal sliding chamber (38).

8. The double-roll crushing device for producing fine particles according to claim 7, characterized in that: The pulverizing drive mechanism (3) comprises a pulverizing roller assembly (39) and a pulverizing drive assembly (40). The pulverizing drive assembly (40) is arranged on the outside of the side stand (8). The pulverizing roller assembly (39) comprises a support bearing (41), a pulverizing roller body (42), a brush (43), an upper hopper (44) and a lower hopper (45). The support bearing (41) is arranged in a sliding bearing seat (9). Support spindles (55) are provided at both ends of the pulverizing roller body (42). 1), the support main shaft (51) is engaged in the support bearing (41), the brush (43) is fixedly connected to the sliding guide assembly (4), the brush (43) is in contact with the crushing roller body (42), the upper hopper (44) is arranged on the external frame, the positions of the upper hopper (44) and the side plate (8) are relatively fixed, the lower hopper (45) is fixedly connected to the side plate (8), and the other end of the return spring (52) is arranged on the liquid storage chamber (33).

9. A double-roll crushing device for fine particle production according to claim 8, characterized in that: The pulverizing drive assembly (40) comprises a pulverizing motor (46), a main shaft support (47), a pulverizing main shaft (48), a hollow worm (49) and a driving worm wheel (50); the pulverizing motor (46) is arranged on the side vertical plate (8); the main shaft support (47) is arranged on the side vertical plate (8); the output shaft of the pulverizing motor (46) is connected to the pulverizing main shaft (48); the pulverizing main shaft (48) is rotatably arranged in the main shaft support (47); the hollow worm (49) is fixedly connected to the pulverizing main shaft (48); the driving worm wheel (50) is fixedly connected to the supporting main shaft (51); and the hollow worm (49) and the driving worm wheel (50) are meshed and driven.

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