阅读说明：本技术 一种破碎颗粒均匀的旋回破碎机 (Even gyratory crusher of broken granule ) 是由 林�智 郑永江 孔世大 南楠 于 2021-06-10 设计创作，主要内容包括：本发明公开了一种破碎颗粒均匀的旋回破碎机,包括主体、破碎板、固定块、旋转块、破碎辊、回收腔、回收装置、吸尘装置；所述回收装置包括筛分板、筛分扭簧、筛分孔、空心柱、弹性杆、移动腔、震动块、移动活塞、进料口、回收箱、连通管、旋转辊、第一螺旋板、空腔、第二螺旋板、送料块、进料机构；本发明通过筛分板进行对破碎完成的石料进行筛分,得到大小不一的石料；然后第一螺旋板将大块石料传送至主体上端进行二次破碎；同时小块的石料通过第二螺旋板送到破碎辊与破碎板的最近处,进行二次破碎；至此提高了对石料的充分破碎,使得破碎后的石料大小均匀。(The invention discloses a gyratory crusher capable of crushing particles uniformly, which comprises a main body, a crushing plate, a fixed block, a rotating block, a crushing roller, a recovery cavity, a recovery device and a dust suction device, wherein the main body is provided with a crushing plate and a dust suction device; the recovery device comprises a screening plate, a screening torsion spring, screening holes, a hollow column, an elastic rod, a moving cavity, a vibration block, a moving piston, a feeding hole, a recovery box, a communicating pipe, a rotating roller, a first spiral plate, a cavity, a second spiral plate, a feeding block and a feeding mechanism; according to the invention, crushed stones are screened through the screening plate to obtain stones with different sizes; then the first spiral plate conveys the large stone materials to the upper end of the main body for secondary crushing; meanwhile, the small stone materials are sent to the nearest part of the crushing roller and the crushing plate through a second spiral plate for secondary crushing; therefore, the full crushing of the stone is improved, and the crushed stone is uniform in size.)

1. A gyratory crusher capable of crushing particles uniformly comprises a main body (1), a crushing plate (11) arranged on the inner wall of the main body (1), a fixed block (110) arranged at the bottom of the main body (1), a rotating block (15) arranged on the fixed block (110), a crushing roller (12) arranged on the rotating block (15), a recovery cavity (13) arranged at the bottom of the main body (1), a recovery device (2) arranged on the inner wall of the recovery cavity (13), and a dust suction device (3) arranged at the bottom of the fixed block (110); the method is characterized in that: recovery unit (2) is including locating a plurality of screening boards (21) on recovery chamber (13) inner wall, locate screening torsional spring (22) on screening board (21) lateral wall, locate a plurality of screening holes (23) on screening board (21), locate hollow post (24) on screening hole (23), locate elastic rod (25) on hollow post (24) lateral wall, locate removal chamber (250) in fixed block (110), locate shake piece (251) on removal chamber (250), locate remove piston (252) in chamber (250), locate feed inlet (26) on fixed block (110) lateral wall, locate collection box (260) in fixed block (110), locate communicating pipe (27) on rotatory piece (15), locate rotatory roller (270) in communicating pipe (27), locate first spiral plate (28) on rotatory roller (270), A cavity (29) arranged in the first screw rod (28), a second screw plate (290) arranged in the cavity (29), feeding blocks (291) respectively arranged on the first screw rod (28) and the second screw plate (290), and a feeding mechanism (4) arranged at the upper end of the communicating pipe (27); the screening plates (21) are provided with a plurality of blocks which are spirally distributed along the circumferential direction of the recovery cavity (13); the screening holes (23) are formed in each screening plate (21), and the sizes of the openings of the screening holes (23) are sequentially reduced from top to bottom; the two elastic rods (25) are embedded at two ends of the hollow column (24) in a vibrating manner, and the two elastic rods (25) are distributed in a vertically staggered manner.

2. A gyratory crusher in which the crushed particles are homogenized according to claim 1, characterized in that: the feeding mechanism (4) comprises a rotating frame (41) arranged at the upper end of a communicating pipe (27), a discharge hole (42) arranged on the side edge of the rotating frame (41), a partition plate (43) arranged on the rotating frame (41), a plurality of discharge holes (44) arranged on the partition plate (43), a plurality of hinged rods (45) arranged on the inner wall of the main body (1), a pressing block (46) arranged on the side wall of the rotating frame (41), an annular groove (47) arranged on the crushing roller (12), a plurality of discharging grooves (48) arranged on the annular groove (47), and an opening and closing assembly (5) arranged in the discharging grooves (48); the longitudinal section of the bottom surface of the rotating frame (41) is trapezoidal; the feed opening (44) is communicated with the rotating frame (44), and the feed opening (44) points to the right upper part of the circular groove (47); the annular groove (47) is arranged on the crushing roller (12), the annular groove (47) is eccentrically arranged on the crushing roller (12), and the axis of the annular groove (47) is superposed with the axis of the rotating block (15); the longitudinal section of the discharging groove (48) is trapezoidal and is provided with a plurality of discharging grooves which are uniformly arranged along the axial direction of the circular groove (47).

3. A gyratory crusher in which the crushed particles are homogenized according to claim 2, characterized in that: the opening and closing assembly (5) comprises a moving groove (51) arranged on the crushing roller (12) and the rotating block (15), an inclined block (52) arranged in the moving groove (51), a pressing groove (53) arranged on the fixed block (110), a sealing plate (54) arranged on the moving groove (51), a connecting rod (55) connected with the sealing plate (54) and the inclined block (52), an airtight groove (56) arranged on the crushing roller (12), a poking plate (57) arranged at the upper end of the airtight groove (56), a piston block (58) arranged at the lower end of the airtight groove (56) and a plurality of pressing plates (59) arranged on the connecting rod (55); the inclined block (52) can be vertically moved and embedded in the moving groove (51), and the longitudinal section of the lower end of the inclined block is an inclined plane.

4. A gyratory crusher in which the crushed particles are homogenized according to claim 1, characterized in that: the dust collection device (3) comprises a connecting block (31) arranged at the bottom of a fixed block (110), an air pressure groove (32) arranged in the connecting block (31), a piston column (33) arranged in the air pressure groove (32), a moving rod (330) arranged on the piston column (33), a one-way valve (34) arranged in the air pressure groove (32), a discharge groove (35) arranged at the bottom of the air pressure groove (32), and a moving plate (36) arranged on the side wall of the discharge groove (35), a buckle (37) arranged on the moving plate (36), a clamping groove (38) arranged on the piston column (33), an unlocking buckle (39) arranged on the clamping groove (38), an eccentric shaft (390) arranged at the bottom of the rotating roller (27), a plurality of connecting rods (391) arranged on the eccentric shaft (390), and a material stirring mechanism (6) arranged at the bottom of the recovery box (260); the air pressure groove (32) is arranged in the connecting block (31) and communicated with the moving cavity (250); one end of the connecting rod (391) is hinged on the side wall of the eccentric shaft (390), and the other end is hinged on the moving rod (330).

5. A gyratory crusher in which the crushed particles are homogenized according to claim 4, characterized in that: the kick-out mechanism (6) comprises a kick-out plate (61) arranged at the bottom of the recovery box (260), a positioning groove (62) arranged at the bottom of the kick-out plate (61), a positioning rod (63) arranged on the movable rod (330), an unlocking block (64) arranged on the positioning rod (63), a universal ball (65) arranged at the bottom of the recovery box (260), a positioning block (66) arranged on the positioning groove (62), a driving block (67) arranged on the positioning groove (62), a positioning tooth (68) arranged at the top end of the positioning rod (63), and a ratchet (69) arranged on the inner wall of the recovery box (260); one end of the kick-out plate (61) is clamped inside the recycling box (260) in a turnover manner; the longitudinal section of the kick-out plate (61) is arc-shaped; the universal ball (65) can be embedded at the bottom of the recovery box (260) in a universal rotating manner; the lower end of the positioning rod (63) is hinged on the movable rod (330), and the upper end of the positioning rod passes through the universal ball (65) to be embedded with the positioning groove (62).

Technical Field

The invention belongs to the technical field of stone crushing, and particularly relates to a gyratory crusher capable of crushing particles uniformly.

Background

The crusher device is used as main equipment for mining and mainly used for crushing stones with different sizes; at present, most of the rotary crushers in the market crush ores or stones uniformly; thereby reducing the quality of the finished stone product.

Disclosure of Invention

The invention provides a gyratory crusher capable of crushing particles uniformly in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: the crushing device comprises a main body, a crushing plate arranged on the inner wall of the main body, a fixed block arranged at the bottom of the main body, a rotating block arranged on the fixed block, a crushing roller arranged on the rotating block, a recovery cavity arranged at the bottom of the main body, a recovery device arranged on the inner wall of the recovery cavity and a dust collection device arranged at the bottom of the fixed block; the method is characterized in that: the recovery device comprises a plurality of screening plates arranged on the inner wall of the recovery cavity, screening torsion springs arranged on the side walls of the screening plates, a plurality of screening holes arranged on the screening plates, hollow columns arranged on the screening holes, elastic rods arranged on the side walls of the hollow columns, a moving cavity arranged in the fixed block, a vibrating block arranged on the moving cavity, a moving piston arranged in the moving cavity, and a feeding hole arranged on the side wall of the fixed block, the recycling bin is arranged in the fixed block, the communicating pipe is arranged on the rotating block, the rotating roller is arranged in the communicating pipe, the first spiral plate is arranged on the rotating roller, the cavity is arranged in the first spiral rod, the second spiral plate is arranged in the cavity, the feeding blocks are respectively arranged on the first spiral rod and the second spiral plate, and the feeding mechanism is arranged at the upper end of the communicating pipe; the screening plates are provided with a plurality of blocks and are spirally distributed along the circumferential direction of the recovery cavity; the screening holes are formed in each screening plate, and the sizes of the openings of the screening holes are sequentially reduced from top to bottom; the elastic rods are provided with two elastic rods which can be embedded at two ends of the hollow column in a vibrating manner, and the two elastic rods are distributed in a vertically staggered manner.

When the crushing is started, firstly, the stone is put into the main body, and the rotating block and the rotating roller are started to rotate; then the crushing roller starts to eccentrically rotate, and stone is crushed; the dust suction device starts to be started under the driving of the rotary roller, and dust generated during crushing is sucked; meanwhile, the operation of the dust suction device drives the movable piston to move up and down, then the sieving plate is pulled to move, and meanwhile, the sieving plate collides with the vibration block when moving; the screening plate starts to vibrate, and stone falling on the screening plate is vibrated; meanwhile, screening stones with different particle sizes under the action of the screening holes; large-particle stone falls onto the first spiral plate from a feeding hole at a high position; then the finer stone enters the recovery box from a feed inlet at the lower part and then enters the second spiral plate; further conveying the stone materials on the first spiral plate to the upper part of the crushing roller again for crushing again; the stone material on the second spiral plate is conveyed to the nearest part of the crushing roller and the crushing plate for crushing; the dust collection device is arranged to collect the generated dust in time during crushing, so that the working environment is more comfortable and safer; the screening plates are arranged to screen stones with different sizes, and the stones can be automatically driven to be conveyed from top to bottom; the screening can be further carried out during the conveying process; the secondary crushing at the later stage is facilitated, and the crushing uniformity of stone materials is improved; the arrangement of the torsion spring can accelerate the shaking speed of the screening plate, thereby improving the screening effect and enabling the stone to be conveyed faster; the arrangement of the screening holes realizes water inlet screening when the stones are conveyed, and the separated stones are conveyed in time, so that the secondary crushing efficiency of the stones is improved; the hollow columns can prevent stones from being clamped on the screening holes, so that the screening smoothness is improved; due to the arrangement of the elastic rod, qualified stone can be guided in the screening process, and the stone enters the screening holes; on the other hand, the screen is prevented from being clamped on the screening holes when the screen is massive, and the screening effect is improved; meanwhile, stone is effectively screened; the vibrating block can drive the vibrating of the screening plate along with the movement of the movable piston, so that the screening effect is improved, and meanwhile, stones clamped on the screening holes can be cleaned, and the screening effect is improved; meanwhile, the plurality of screening plates can be vibrated in sequence, so that stones can be screened more uniformly; the vibrating of the screening plates can be driven during crushing through the arrangement of the movable piston, so that the vibrating frequencies of the screening plates are different, and the effects of screening and conveying stone are improved; due to the arrangement of the feeding hole, the screened stone materials can be fed in time by the screening plate during screening, so that the secondary crushing efficiency is improved; the large stone can be conveyed through the arrangement of the first spiral plate, so that the secondary crushing efficiency is improved; the feeding block can prevent stones falling on the first spiral plate and the second spiral plate from sliding off.

The feeding mechanism comprises a rotating frame arranged at the upper end of a communicating pipe, a discharge hole arranged on the side edge of the rotating frame, a partition plate arranged on the rotating frame, a plurality of discharge holes arranged on the partition plate, a plurality of hinge rods arranged on the inner wall of the main body, a pressing block arranged on the side wall of the rotating frame, a circular groove arranged on the crushing roller, a plurality of discharge chutes arranged on the circular groove and an opening and closing assembly arranged in the discharge chutes; the longitudinal section of the bottom surface of the rotating frame is trapezoidal; the feed opening is communicated with the rotating frame and points to the right upper part of the circular groove; the annular groove is formed in the crushing roller, the annular groove is eccentrically arranged on the crushing roller, and the axis of the annular groove is superposed with the axis of the rotating block; the vertical section of the discharging groove is trapezoidal and is provided with a plurality of discharging grooves which are evenly distributed along the axial direction of the circular groove.

The communicating pipe drives the rotating frame to rotate, and then the pressing block presses against the hinge rod, so that stone falling on the hinge rod intermittently enters the crushing plate; with the rotation of the first spiral plate, the large block is conveyed into the rotating frame and then discharged from the discharge port for re-crushing; meanwhile, small stones enter the upper part of the partition plate under the transmission of the second spiral plate and then fall from the feed opening under the action of centrifugal force; at the moment, small stones fall into the circular groove; along with the rotation of the rotating block, when the crushing roller is closest to the crushing plate, the opening and closing assembly is started to put small stone materials on the crushing plate for crushing; the secondary crushed stone is evenly discharged through the arrangement of the rotating frame, so that the crushing is more even; the arrangement of the circular groove can directly feed small stone materials to the closest point of the crushing roller and the crushing plate, so that the small stone materials are prevented from being crushed by the crushing roller, and the crushing uniformity is improved; intermittent blanking can be performed according to the rotation of the pressing block through the arrangement of the hinge rod, so that the crushing is more sufficient; realize the unloading of fritter building stones on the one hand through the setting of unloading groove, on the other hand can prevent that the building stones of crushing roller can enter into in the unloading groove when broken.

The opening and closing assembly comprises a moving groove arranged on the crushing roller and the rotating block, an inclined block arranged in the moving groove, a pressing groove arranged on the fixed block, a sealing plate arranged on the moving groove, a connecting rod for connecting the sealing plate and the inclined block, an airtight groove arranged on the crushing roller, a poking plate arranged at the upper end of the airtight groove, a piston block arranged at the lower end of the airtight groove and a plurality of pressing plates arranged on the connecting rod; the sloping block can be embedded in the moving groove in an up-and-down moving way, and the longitudinal section of the lower end of the sloping block is an inclined plane.

During crushing, when the crushing roller is closest to the crushing plate, the inclined block moves downwards; at the moment, the sealing plate is opened, and meanwhile, the pressing plate indirectly abuts against the piston block to drive the shifting plate to intermittently move up and down, so that stones falling on the shifting plate are pushed to a discharging groove; the blocking of small stones is realized through the arrangement of the airtight plate, and the situation that the small stones directly fall onto the screening plate due to the fact that the crushing roller carries out blanking when the crushing roller is farthest away from the crushing plate is prevented; through the arrangement of the inclined blocks and the pressing grooves, the effect that the materials are discharged when the crushing roller is close to the crushing plate is achieved, small stone materials can be directly crushed, meanwhile, the small stone materials can be extruded, and the crushing effect is improved; the stirring plate is arranged to stir the stone during blanking so as to prevent the stone from being clamped in the blanking groove; the intermittent shaking of the stirring plate can be realized through the arrangement of the pressing plate, so that the blanking smoothness is improved.

The dust collection device comprises a connecting block arranged at the bottom of a fixed block, an air pressure groove arranged in the connecting block, a piston column arranged in the air pressure groove, a moving rod arranged on the piston column, a one-way valve arranged in the air pressure groove, a discharge chute arranged at the bottom of the air pressure groove, a moving plate arranged on the side wall of the discharge chute, a buckle arranged on the moving plate, a clamping groove arranged on the piston column, a release buckle arranged on the clamping groove, an eccentric shaft arranged at the bottom of the rotary roller, a plurality of connecting rods arranged on the eccentric shaft and a material stirring mechanism arranged at the bottom of the recovery box; the air pressure groove is arranged in the connecting block and communicated with the moving cavity; one end of the connecting rod is hinged on the side wall of the eccentric shaft, and the other end of the connecting rod is hinged on the movable rod.

When dust collection is started, the eccentric shafts rotate to drive the connecting rods to move, and then the moving rods are pulled to move; at the moment, the piston column is driven to move in the air pressure groove, the buckle is clamped in the clamping groove, and the movable plate is pulled to move, so that the air pressure groove is sealed; then the one-way valve sucks in dust, when the dust suction is finished, the unlocking buckle presses against the inner wall of the discharge chute to reset the buckle, and meanwhile, the movable plate moves quickly to reset; at the moment, the dust falls from the discharge chute; meanwhile, the air pressure in the moving cavity is increased when the piston column moves; and driving the start of the material poking mechanism; the air pressure groove can be sealed when the piston column sucks air through the arrangement of the moving plate, so that the one-way valve can absorb dust; meanwhile, after the air suction is finished, the discharge chute is opened to enable the dust to be discharged quickly, so that the dust is prevented from flying; the dust can be collected when stones are crushed through the arrangement of the mechanism, so that the working environment and the safety are improved.

The material shifting mechanism comprises a material shifting plate arranged at the bottom of the recovery box, a positioning groove arranged at the bottom of the material shifting plate, a positioning rod arranged on the movable rod, an unlocking block arranged on the positioning rod, a universal ball arranged at the bottom of the recovery box, a positioning block arranged on the positioning groove, a driving block arranged on the positioning groove, a positioning tooth arranged at the top end of the positioning rod and a ratchet arranged on the inner wall of the recovery box; one end of the kick-out plate is clamped in the recovery box in a turnover manner; the longitudinal section of the kick-out plate is arc-shaped; the universal ball can be embedded at the bottom of the recovery box in a universal rotating manner; the lower end of the positioning rod is hinged to the movable rod, and the upper end of the positioning rod penetrates through the universal ball to be embedded with the positioning groove.

When the movable rod moves, the positioning rod is pulled to move, and at the moment, the positioning teeth are clamped in the positioning grooves, and the material stirring plate is pulled to turn over; when the unlocking block is not abutted by a satellite ball, the driving block is abutted against the positioning block, and the positioning teeth are disengaged from the limiting grooves; at the moment, the stone falling on the stirring plate is thrown upwards, so that the stone enters the second spiral plate; the setting of the material stirring plate can ensure that stone materials are thrown towards the second spiral plate, so that the stability of secondary crushing is improved; meanwhile, the blockage of the feed inlet can be prevented; the setting through this mechanism enables to fall on the building stones of collection box carry out even send to the second spiral plate on, has improved secondary crushing's stability.

In conclusion, the invention has the following advantages: screening the crushed stones by a screening plate to obtain stones with different sizes; then the first spiral plate conveys the large stone materials to the upper end of the main body for secondary crushing; meanwhile, the small stone materials are sent to the nearest part of the crushing roller and the crushing plate through a second spiral plate for secondary crushing; therefore, the full crushing of the stone is improved, and the crushed stone is uniform in size.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a cross-sectional perspective view along a-a of fig. 2 of the present invention.

Fig. 4 is a cross-sectional view along a-a of fig. 2 of the present invention.

FIG. 5 is a partial view taken at A in FIG. 3 according to the present invention.

Fig. 6 is a partial view of the invention at B in fig. 3.

Fig. 7 is a partial view of the invention at C in fig. 3.

Fig. 8 is a partial view of the invention at D in fig. 3.

Fig. 9 is a partial view of the invention at E of fig. 4.

Detailed Description

As shown in fig. 1-9, a gyratory crusher for crushing particles uniformly comprises a main body 1, a crushing plate 11, a fixed block 110, a rotating block 15, a crushing roller 12, a recovery cavity 13, a recovery device 2 and a dust suction device 3; the recovery device 2 comprises a screening plate 21, a screening torsion spring 22, a screening hole 23, a hollow column 24, an elastic rod 25, a moving cavity 250, a vibration block 251, a moving piston 252, a feed inlet 26, a recovery box 260, a communicating pipe 27, a rotating roller 270, a first spiral plate 28, a cavity 29, a second spiral plate 290, a feed block 291 and a feeding mechanism 4; the longitudinal section of the main body 1 is trapezoidal; a plurality of crushing plates 11 are arranged, the longitudinal sections of the crushing plates 11 are arc-shaped, and crushing teeth are arranged on the surfaces of the crushing plates 11; the fixing block 110 is arranged at the bottom of the main body 1; the rotating block 15 is rotatably embedded at the upper end of the fixed block 110; the longitudinal section of the crushing roller 12 is trapezoidal, and the crushing roller is eccentrically arranged on the rotating block 15; the recycling cavity 13 is arranged at the bottom of the main body 1 and is positioned between the fixing block 110 and the inner wall of the main body 1; the recovery device 2 is arranged in the recovery cavity 13; the dust suction device 3 is arranged at the bottom of the fixed block 110; the screening plates 21 are arranged in a plurality of blocks and are spirally distributed along the circumferential direction of the recovery cavity 13; one end of the sieving plate 21 is embedded on the inner wall of the main body 1 in a turnover way, and the other end is embedded in the movable cavity 250 in an upward movable way; the screening torsion spring 22 is connected with the screening plate 21 and the inner wall of the main body 1; the screening holes 23 are formed in each screening plate 21, and the opening size of each screening hole 23 is reduced from top to bottom; a plurality of hollow columns 24 are arranged on each screening hole 23, and the side wall of each hollow column 24 is provided with a slot; the two elastic rods 25 are embedded at two ends of the hollow column 24 in a vibrating manner, and the two elastic rods 25 are distributed in a vertically staggered manner; the moving cavity 250 is arranged on the inner wall of the fixed block 110, and the moving cavity 250 is provided with a plurality of cavities which are uniformly arranged along the circumferential direction of the fixed block 110; the longitudinal section of the vibration block 251 is arc-shaped, and the vibration block is arranged on the inner wall of the moving cavity 250 and is abutted against the screening plate 21; one end of the movable piston 252 is connected with the sieving plate 21; the moving piston 252 can move up and down to be embedded in the moving piston 250; a plurality of feed ports 26 are arranged on the inner wall of the fixed block 110, and the fixed block is connected with the surfaces of the screening plate 21 and the first spiral plate 28; the upper part and the lower part of the feed port 26 are respectively arranged on the inner wall of the fixed block 110; one end of the communicating pipe 27 is fixedly arranged on the rotating block 15, and the other end of the communicating pipe passes through the crushing roller 12 to reach the upper end of the crushing pipe 12; the recycling box 260 is arranged in the fixed block 110; the rotating roller 270 is arranged in the communicating pipe 27 and can be driven to rotate by the prior art; the first spiral plate 28 is arranged in the rotating roller 270; the cavity 29 is arranged on the rotating roller 270; the second spiral plate 290 is disposed in the cavity 29; the cross section of the feeding block 291 is rectangular and is respectively arranged on the surfaces of the first spiral plate 28 and the second spiral plate 290; the feeding mechanism 4 is arranged on the communicating pipe 27.

As shown in fig. 3, the feeding mechanism 4 includes a rotating frame 41, a discharge port 42, a partition 43, a discharge port 44, a hinge rod 45, a pressing block 46, an annular groove 47, a discharge groove 48, and an opening and closing assembly 5; the rotating frame 41 is arranged on the communicating pipe 27, and the longitudinal section of the bottom surface of the rotating frame 41 is trapezoidal; the discharge port 42 is arranged on the side edge of the rotating frame 41; the partition plate 43 is arranged in the rotating frame 41; the feed opening 44 is communicated with the rotating frame 44, and the feed opening 44 points to the right upper part of the circular groove 47; the hinge rod 45 is formed by hinging 2 connecting rods; one end is hinged on the inner wall of the main body 1, and the other end is propped against the pressing block 46; the annular groove 47 is arranged on the crushing roller 12, the annular groove 47 is eccentrically arranged on the crushing roller 12, and the axis of the annular groove 47 is superposed with the axis of the rotating block 15; the longitudinal section of the blanking groove 48 is trapezoidal, and a plurality of blanking grooves are uniformly arranged along the axial direction of the annular groove 47; the opening and closing assembly 5 is arranged in the discharging groove 48.

As shown in fig. 7, the opening and closing assembly 5 includes a moving groove 51, an inclined block 52, a pressing groove 53, a sealing plate 54, a connecting rod 55, an air-tight groove 56, a toggle plate 57, a piston block 58, and a pressing plate 59; the plurality of moving grooves 51 are uniformly arranged along the circumferential direction of the rotating block 15; the inclined block 52 can be embedded in the moving groove 51 in a vertically moving way, and the longitudinal section of the lower end is an inclined plane; the inclined block 52 is connected with the moving groove 51 by a spring; the pressing groove 53 is arranged on the surface of the fixed block 110, and the pressing groove 53 is positioned at the closest point of the crushing roller 12 and the crushing plate 11; the obturation plate 54 is movably embedded on the moving groove 51; the connecting rod 55 is connected with the airtight plate 54 and the inclined block 52; the airtight groove 56 is arranged on the side of the movable groove 51; the poking plate 57 can be vertically moved and is embedded at the upper end of the airtight groove 56; the piston block 58 is arranged at the lower end of the airtight groove 56, and one end of the piston block 58 is provided with an arc angle; and the piston block 58 is connected with the airtight groove 56 by a spring; the pressing plates 59 are provided in plurality, and are provided on the connecting rod 55 to abut against the piston block 58.

As shown in fig. 8, the dust suction device 3 includes a connecting block 31, an air pressure groove 32, a piston column 33, a moving rod 330, a one-way valve 34, a discharging groove 35, a moving plate 36, a buckle 37, a clamping groove 38, an unlocking buckle 39, an eccentric shaft 390, a connecting rod 391 and a material stirring mechanism 6; the connecting block 31 is connected with the bottom of the fixing block 11 and the bottom of the main body 1; the air pressure groove 32 is arranged in the connecting block 31 and is communicated with the moving cavity 250; the piston column 33 is movably embedded in the pneumatic groove 32; one end of the moving rod 330 is arranged on the piston column 33, and the other end is positioned at the bottom of the fixed block 110; the one-way valve 34 is arranged on the side wall of the connecting block 31; the discharge chute 35 is arranged at the bottom of the pneumatic chute 32; the moving plate 36 is movably embedded on the discharging groove 35; the cross section of the buckle 37 is L-shaped and is arranged at the top end of the moving plate 36; the clamping groove 38 is arranged on the piston column 33, the cross section of the clamping groove 38 is L-shaped, and the clamping groove 38 is embedded with the buckle 37; the unlocking buckle 39 transversely moves and is embedded in the clamping groove 38, the cross section of one end of the unlocking buckle is triangular and abuts against the buckle 37, and the other end of the unlocking buckle abuts against the surface of the discharge chute 35; the eccentric shaft 390 is arranged at the bottom of the rotating roller 27 and is eccentrically arranged with the rotating roller 27; one end of the connecting rod 391 is hinged on the side wall of the eccentric shaft 390, and the other end is hinged on the moving rod 330; the material stirring mechanism 6 is arranged at the bottom of the recycling box 260.

As shown in fig. 9, the material-shifting mechanism 6 includes a material-shifting plate 61, a positioning slot 62, a positioning rod 63, an unlocking block 64, a universal ball 65, a positioning block 66, a driving block 67, a positioning tooth 68, and a ratchet 69; one end of the kick-out plate 61 is clamped inside the recycling box 260 in a turnover way; the longitudinal section of the kick-out plate 61 is circular arc; the positioning groove 62 is formed at the bottom of the material shifting plate 61; the universal ball 65 can be embedded at the bottom of the recycling box 260 in a universal rotating manner; the lower end of the positioning rod 63 is hinged on the movable rod 330, and the upper end of the positioning rod passes through the universal ball 65 to be embedded with the positioning groove 62; the unlocking block 64 is arranged on the positioning rod 63 in a sliding manner; the longitudinal section of the positioning block 66 is trapezoidal, and the positioning block is movably arranged in the re-positioning groove 62; the driving block 67 is arranged in the positioning groove 62 in a way of moving up and down; the longitudinal section of the driving block 67 is trapezoidal and is abutted against the positioning block 66; the positioning teeth 68 are arranged at the top end of the positioning rod 63, and the longitudinal section of the positioning teeth is trapezoidal; the ratchet 69 is provided on the inner wall of the recovery box 260 and abuts against the switch plate 61.

The specific implementation process is as follows: when the crushing is started, firstly, the stone is put into the main body 1, and the rotating block 15 and the rotating roller 270 are started to rotate; then the crushing roller 12 starts to rotate eccentrically, and stone is crushed; the plurality of connecting rods 391 are driven to move under the rotation of the eccentric shafts 390, and then the moving rod 330 is pulled to move; at this time, the piston column 33 is driven to move in the air pressure groove 32, the buckle 37 is clamped in the clamping groove 38, and the moving plate 36 is pulled to move, so that the air pressure groove 32 is sealed; then the one-way valve 34 sucks in dust, when the dust sucking is finished, the unlocking buckle 39 presses against the inner wall of the discharging groove 35 to reset the buckle 37, and meanwhile, the moving plate 36 moves rapidly to reset; at this time, the dust falls from the discharge chute 35; meanwhile, when the piston column 33 moves, the air pressure in the moving cavity 250 is increased, the moving piston 252 is driven to move up and down, then the screening plate 21 is pulled to move, and meanwhile, the screening plate 21 collides with the vibrating block 251 when moving; thereby the screening plate 21 starts to generate vibration, and the stone falling on the screening plate 21 is vibrated; meanwhile, the screened stones are screened out under the action of the screening holes 23 to obtain stones with different particle sizes; the large-particle rock material falls from the high feed port 26 onto the first spiral plate 28; then, the thinner stone enters the recycling box 260 from the lower feeding hole 26, when the moving rod 330 moves, the positioning rod 63 is pulled to move, at the moment, the positioning teeth 68 are clamped in the positioning grooves 62 again, and the material stirring plate 61 is pulled to turn over; when the unlocking block 64 is abutted against the non-spherical star 65, the driving block is abutted against the positioning block 66, and the positioning teeth 68 are disengaged from the limiting groove 62; at this time, the stone falling on the material-stirring plate 61 is thrown upward, so that the stone enters the second spiral plate 290; further stone material on the first spiral plate 28 is conveyed again to the upper part of the crushing roller 12 to be crushed again; the rock material on the second spiral plate 290 is conveyed to the nearest part of the crushing roll 12 and the crushing plate 11 for crushing

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.