CN216992346U - Processing apparatus before raw materials for wood flour production - Google Patents

Abstract

The utility model discloses a raw material pretreatment device for wood powder production, which adopts the technical scheme that: the crushing mechanism comprises a shell, a shell is fixedly embedded in the top of the shell, the crushing mechanism is arranged in the shell and comprises a motor, the motor is fixedly connected to the front side of the shell, and two first rotating shafts are arranged in the shell, so that the crushing mechanism has the beneficial effects that: drive broken case through gear two and rotate, just can make two gears one just so can make two rotations of pivot two inside the ring gear, just so can make broken tooth one and two rotations of broken tooth, just so can carry out the secondary crushing to preliminary broken billet, just can guarantee billet crushing quality through twice crushing, and can not appear broken insufficient phenomenon, just so do not need the manual work to carry out the breakage to the billet, so not only reduced artificial intensity of labour but also increased the crushing efficiency to the billet, the possibility of artifical injured has been avoided simultaneously.

Description

Processing apparatus before raw materials for wood flour production

Technical Field

The utility model relates to the technical field of wood powder production, in particular to a raw material pretreatment device for wood powder production.

Background

The wood powder refers to powder made by beating wood, generally refers to leftover waste materials of wood processing in furniture factories, density board factories and multi-layer board factories, and is divided into incense-making wood powder, paper-making wood powder and wood-plastic wood powder. The wood powder has wide application and is a novel energy-saving and environment-friendly raw material.

Need break into the fritter with the great billet of volume before wood flour production, will be more convenient when beating into the powder like this, all carry out breakage with the great billet of volume through the manual work at present, the manual work not only need consume great intensity of labour when carrying out the breakage, and billet crushing efficiency is still lower moreover to still receive the injury easily at broken in-process.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a raw material pretreatment device for wood powder production, which solves the problems of high labor intensity and low crushing efficiency through the design of a crushing mechanism.

In order to achieve the above purpose, the utility model provides the following technical scheme: a raw material pretreatment device for wood powder production comprises a shell, wherein a shell is fixedly embedded in the top of the shell, and a crushing mechanism is arranged in the shell;

the crushing mechanism comprises a motor, the motor is fixedly connected to the front side of a shell, two first rotating shafts are arranged in the shell, the front ends and the rear ends of the two first rotating shafts extend to the outer part of the front side and the outer part of the rear side of the shell, two crushing wheels are fixedly sleeved on the outer parts of the two first rotating shafts, a fixed block is fixedly connected to the inner part of the top of the shell, a crushing box is arranged in the shell, the bottom ends of the fixed blocks extend to the inner part of the crushing box and are connected with the crushing box through bearings, a connecting plate is fixedly embedded in the crushing box, two rotating shafts are connected to two sides of the connecting plate, the outer ends of the two rotating shafts extend to the outer parts of two sides of the crushing box respectively, crushing teeth I and crushing teeth II are fixedly sleeved on the outer parts of the two rotating shafts, the two crushing teeth I are positioned on the inner sides of the two crushing teeth, a fixed plate is sleeved on the outer part of the crushing box and is connected with the fixed plate through bearings, the fixed plate fixed connection is inside the shell, two the equal fixed cover in two outer ends of pivot is equipped with gear one, fixed plate top fixedly connected with ring gear one, gear one is located ring gear top and meshes mutually with ring gear one.

It is specific, two pivots rotate simultaneously, just so can drive crushing wheel and rotate, and two inside interlocks of crushing wheel rotate, just so can carry out preliminary breakage to the great billet of volume, then fall to inside the broken incasement portion by preliminary kibbling billet, broken case rotates and just can drive two gears and rotate in a ring gear inside, just so can make two rotations of two pivots, just so can make broken tooth one and two rotations of broken tooth, just so can carry out the secondary crushing to preliminary broken billet, just so can guarantee billet crushing quality through twice crushing.

Preferably, the shell rear side is equipped with pivot three and pivot four, pivot three is located four tops of pivot, three front ends of pivot run through the shell and extend to the shell front side outside, four front ends of pivot run through the shell and connect at the motor output shaft, pivot three and pivot four are all connected through the bearing with the shell.

In particular, the bearing connection can reduce the wear of the device during use.

Preferably, a first bevel gear is fixedly sleeved outside the third rotating shaft, a second bevel gear is arranged on one side of the first bevel gear and meshed with the first bevel gear, a fifth rotating shaft is fixedly connected to one side of the second bevel gear, a fixing rod is fixedly connected to the inside of the top of the shell, the fifth rotating shaft penetrates through the fifth rotating shaft and extends to one side of the crushing box, and the fifth rotating shaft is connected with the fixing rod through a bearing.

Specifically, the third rotating shaft can rotate to drive the first bevel gear to rotate by meshing the second bevel gear with the first bevel gear, the first bevel gear rotates to drive the second bevel gear to rotate, and the second bevel gear rotates to drive the fifth rotating shaft to rotate.

Preferably, the outer part of one end of the rotating shaft is fixedly sleeved with a second gear, the outer part of the crushing box is fixedly sleeved with a second gear ring, and the second gear is located at the top of the second gear ring and meshed with the second gear ring.

Specifically, the second gear is meshed with the second gear ring, so that the fifth rotating shaft can rotate to drive the crushing box to rotate.

Preferably, broken bottom of the case portion is equipped with the movable plate, the movable plate contacts with the broken bottom of the case portion, the movable plate is located four one sides of pivot, movable plate one side fixedly connected with spring, spring one end fixed connection is at shell one side inner wall, four external fixation cover in pivot are equipped with hits the piece, hit and beat the piece and contact with the movable plate opposite side, two sliders of movable plate bottom fixedly connected with, two spouts have been seted up to shell bottom inner wall the slider inlay respectively establish inside and with the spout phase-match in two spouts, the inside fixed filter screen that is equipped with that inlays of movable plate.

Specifically, the wood blocks which are crushed can fall into the discharge hopper through the filter screen by the design of the threads, and the wood blocks which are not crushed can be crushed.

Preferably, two the outside all fixed cover in a pivot rear end is equipped with gear three, two the meshing of gear three-phase, one of them pivot one and the three outside all fixed covers in pivot are equipped with sprocket one, two sprocket one is located the shell front side outside, two sprocket one outside all is equipped with chain one, two connect through a chain drive between the sprocket one.

Specifically, the first rotating shaft on the left side and the third rotating shaft can rotate together through the chain, so that the first rotating shaft and the third rotating shaft can rotate simultaneously.

Preferably, the third rotating shaft and the fourth rotating shaft are fixedly sleeved with a second chain wheel, the second chain wheel is located outside the rear side of the shell, the second chain wheel is sleeved with a second chain, and the second chain wheel is connected with the second chain wheel in a driving mode through the second chain.

Specifically, the rotating shaft III can be driven to rotate when the rotating shaft IV rotates through the chain II, so that the rotating shaft III and the rotating shaft IV can rotate simultaneously.

Preferably, the connecting pipe is arranged inside the shell, the bottom end of the connecting pipe extends to the inside of the crushing box, a discharge hopper is arranged on the outer side of the bottom of the shell, and the bottom end of the discharge hopper extends to the inside of the shell and contacts with the bottom of the movable plate.

Specifically, through the design of connecting pipe just can make the billet that is tentatively broken drop to crushing incasement portion and carry out the secondary crushing.

Preferably, the four corners of the bottom of the shell are fixedly connected with the base.

Specifically, four bases can make the stable work of device, can not appear rocking at the during operation.

Preferably, the first rotating shaft is connected with the shell through a bearing, and the second rotating shaft is connected with the crushing box through a bearing.

In particular, the wear can be reduced by the bearing connection.

The utility model has the beneficial effects that:

the utility model drives the rotating shaft to rotate four times through the working of the motor, the rotating shaft to rotate three times can rotate the rotating shaft on the left side, the two rotating shafts can rotate simultaneously through three-phase meshing of the two gears, so that the crushing wheel can crush large-size wood blocks preliminarily, the wood blocks crushed preliminarily fall into the crushing box, the crushing box is driven to rotate through the gear II, the two gears can rotate the two rotating shafts once in the gear ring, so that the crushing tooth I and the crushing tooth II can rotate, the wood blocks crushed preliminarily can be crushed secondarily, the wood block crushing quality can be ensured through crushing twice, the phenomenon of insufficient crushing can not occur, the wood blocks do not need to be crushed manually, the labor intensity of manual labor is reduced, and the wood block crushing efficiency is increased, while avoiding the possibility of manual injury.

Drawings

FIG. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is a front view cross-section view provided by the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2 according to the present invention;

FIG. 4 is a side perspective view provided by the present invention;

in the figure: the crushing device comprises a shell 1, a shell 2, a motor 3, a first rotating shaft 4, a crushing wheel 5, a fixed block 6, a crushing box 7, a connecting plate 8, a second rotating shaft 9, a first crushing tooth 10, a second crushing tooth 11, a first gear 12, a first gear ring 13, a third rotating shaft 14, a fourth rotating shaft 15, a first bevel gear 16, a second bevel gear 17, a fifth rotating shaft 18, a fixed rod 19, a second gear 20, a second gear ring 21, a movable plate 22, a spring 23, a beating block 24, a sliding block 25, a filter screen 26, a third gear 27, a first sprocket 28, a first chain 29, a second sprocket 30, a second chain 31, a second chain 32, a connecting pipe 33 discharging hopper 34, a base 34 and a fixed plate 35.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Referring to the attached drawings 1-4, the utility model provides a raw material pretreatment device for wood powder production, which comprises a shell 1, wherein a shell 2 is fixedly embedded in the top of the shell 1, and a crushing mechanism is arranged in the shell 1;

the crushing mechanism comprises a motor 3, the motor 3 is fixedly connected to the front side of a shell 1, two rotating shafts I4 are arranged inside a shell 2, the front ends and the rear ends of the rotating shafts I4 extend to the outer portion of the front side and the outer portion of the rear side of the shell 2, crushing wheels 5 are fixedly sleeved on the outer portions of the rotating shafts I4, a fixing block 6 is fixedly connected to the inner portion of the top of the shell 1, a crushing box 7 is arranged inside the shell 1, the bottom end of the fixing block 6 extends to the inner portion of the crushing box 7 and is connected with the crushing box 7 through a bearing, a connecting plate 8 is fixedly embedded inside the crushing box 7, two rotating shafts II 9 are connected to two sides of the connecting plate 8, the outer ends of the two rotating shafts II 9 extend to the outer portions of two sides of the crushing box 7 respectively, crushing teeth I10 and crushing teeth II 11 are fixedly sleeved on the outer portions of the two rotating shafts II 9, the crushing teeth I10 are located on the inner sides of the two crushing teeth II 11, a fixing plate 35 is sleeved outside the crushing box 7 and connected with the fixing plate 35 through a bearing, the fixing plate 35 is fixedly connected inside the shell 1, a first gear 12 is fixedly sleeved outside the outer ends of the two rotating shafts II 9, a first gear ring 13 is fixedly connected to the top of the fixing plate 35, and the first gear 12 is located at the top of the first gear ring 13 and meshed with the first gear ring 13;

in this embodiment, two pivot 4 are rotated, just so can drive crushing wheel 5 and rotate, and two 5 inside interlocks of crushing wheel rotate, just so can carry out preliminary breakage to the great billet of volume, then drop inside broken case 7 by preliminary kibbling billet, then broken case 7 rotates and just can drive two gears 12 and rotate at ring gear 13 inside, just so can make two pivots two 9 rotations, just so can make broken tooth one 10 and two 11 rotations of broken tooth, just so can carry out the secondary crushing to preliminary broken billet, just can guarantee the broken quality of billet through twice crushing, and the insufficient phenomenon of breakage can not appear.

Wherein, in order to realize the purpose of transmission, this device adopts following technical scheme to realize: a third rotating shaft 14 and a fourth rotating shaft 15 are arranged on the rear side of the shell 1, the third rotating shaft 14 is positioned at the top of the fourth rotating shaft 15, the front end of the third rotating shaft 14 penetrates through the shell 1 and extends to the outside of the front side of the shell 1, the front end of the fourth rotating shaft 15 penetrates through the shell 1 and is connected to an output shaft of the motor 3, the third rotating shaft 14 and the fourth rotating shaft 15 are connected to the shell 1 through bearings, a first bevel gear 16 is fixedly sleeved on the outside of the third rotating shaft 14, a second bevel gear 17 is arranged on one side of the first bevel gear 16, the second bevel gear 17 is meshed with the first bevel gear 16, a fifth rotating shaft 18 is fixedly connected to one side of the second bevel gear 17, a fixing rod 19 is fixedly connected to the inside of the top of the shell 1, the fifth rotating shaft 18 penetrates through the fifth rotating shaft 18 and extends to one side of the crushing box 7, the fifth rotating shaft 18 is connected to the fixing rod 19 through a bearing, and a second gear 20 is fixedly sleeved on the outside of one end of the fifth rotating shaft 18, a second gear ring 21 is fixedly sleeved outside the crushing box 7, the second gear 20 is positioned at the top of the second gear ring 21 and is meshed with the second gear ring 21, the third rotating shaft 14 rotates to drive the first bevel gear 16 to rotate, the first bevel gear 16 rotates to drive the second bevel gear 17 to rotate, the second bevel gear 17 rotates to drive the fifth rotating shaft 18 to rotate, the fifth rotating shaft 18 rotates to drive the second gear 20 to rotate, and the second gear 20 rotates to enable the crushing box 7 to rotate;

in order to achieve the purpose of stably moving the moving plate 22, the device is implemented by adopting the following technical scheme: the bottom of the crushing box 7 is provided with a movable plate 22, the movable plate 22 is contacted with the bottom of the crushing box 7, the movable plate 22 is positioned on one side of a rotating shaft four 15, one side of the movable plate 22 is fixedly connected with a spring 23, one end of the spring 23 is fixedly connected with the inner wall of one side of the shell 1, a striking block 24 is fixedly sleeved outside the rotating shaft four 15, the striking block 24 is contacted with the other side of the movable plate 22, the bottom of the movable plate 22 is fixedly connected with two slide blocks 25, the inner wall of the bottom of the shell 1 is provided with two slide grooves, the two slide blocks 25 are respectively embedded inside the two slide grooves and matched with the slide grooves, a filter screen 26 is fixedly embedded inside the movable plate 22, the rotating shaft four 15 can drive the striking block 24 to rotate when rotating, so that the striking block 24 can be continuously contacted with the movable plate 22, and the movable plate 22 can be continuously moved left and right under the action of the spring 23, therefore, the wood blocks which are crushed can fall into the discharging hopper 33 through the filter screen 26, the wood blocks which are not crushed can be crushed, and the two sliding blocks 25 are embedded into the two sliding grooves, so that the moving plate 22 can be more stable when moving and cannot shake when moving;

wherein, in order to realize the purpose of rotating simultaneously, this device adopts following technical scheme to realize: two the outside of the rear end of the first rotating shaft 4 is fixedly sleeved with three gears 27, two the three gears 27 are meshed, one of the two outside of the first rotating shaft 4 and the three rotating shaft 14 is fixedly sleeved with a first chain wheel 28, two of the first chain wheels 28 are positioned outside the front side of the shell 1, two of the first chain wheels 28 are sleeved with a first chain 29, two of the first chain wheels 28 are in driving connection through a first chain 29, the outside of the third rotating shaft 14 and the fourth rotating shaft 15 are fixedly sleeved with a second chain wheel 30, the second chain wheel 30 is positioned outside the rear side of the shell 1, two of the second chain wheels 30 are sleeved with a second chain 31, two of the second chain wheels 30 are in driving connection through a second chain 31, the fourth rotating shaft 15 drives the second chain wheel 30 below to rotate, the second chain wheel 30 below rotates to drive the second chain wheel 30 above to rotate, the second chain wheel 30 above rotates to drive the third rotating shaft 14 to rotate, the rotating shaft III 14 rotates to drive the lower chain wheel I28 to rotate, the lower chain wheel I28 rotates to drive the upper chain wheel I28 to rotate, and the upper chain wheel I28 rotates to drive the left rotating shaft I4 to rotate;

wherein, in order to realize the purpose of ejection of compact, this device adopts following technical scheme to realize: a connecting pipe 32 is arranged inside the shell 1, the bottom end of the connecting pipe 32 extends into the crushing box 7, a discharge hopper 33 is arranged outside the bottom of the shell 1, the bottom end of the discharge hopper 33 extends into the shell 1 and is in contact with the bottom of the moving plate 22, the wood blocks which are primarily crushed fall into the crushing box 7 through the connecting pipe 32, and the wood blocks which are crushed fall into the discharge hopper 33 through the filter screen 26;

wherein, in order to realize the purpose that the device works steadily, this device adopts following technical scheme to realize: the four corners of the bottom of the shell 1 are fixedly connected with bases 34, the first rotating shaft 4 is connected with the shell 2 through bearings, the second rotating shaft 9 is connected with the crushing box 7 through bearings, and a plurality of positions are movably connected through bearings to reduce abrasion, so that the device can stably work;

the using process of the utility model is as follows: when the wood block smashing device is used, the motor 3 is started, then a wood block with a larger volume is placed into the shell 2, the motor 3 works to drive the rotating shaft four 15 to rotate, the rotating shaft four 15 rotates to drive the lower chain wheel two 30 to rotate, the lower chain wheel two 30 rotates to drive the upper chain wheel two 30 to rotate, the upper chain wheel two 30 rotates to drive the rotating shaft three 14 to rotate, the rotating shaft three 14 rotates to drive the lower chain wheel one 28 to rotate, the lower chain wheel one 28 rotates to drive the upper chain wheel one 28 to rotate, the upper chain wheel one 28 rotates to drive the left rotating shaft one 4 to rotate, the left rotating shaft one 4 rotates to drive the left gear three 27 to rotate, the left gear three 27 drives the right gear three 27 to rotate, the right gear three 27 drives the right rotating shaft one 4 to rotate, the two rotating shafts one 4 can simultaneously rotate, the smashing wheels 5 can be driven to rotate, and the two smashing wheels 5 are meshed inwards to rotate, therefore, the wood blocks with larger volume can be primarily crushed, then the wood blocks which are primarily crushed fall into the crushing box 7, the rotating shaft III 14 rotates to drive the first bevel gear 16 to rotate, the first bevel gear 16 rotates to drive the second bevel gear 17 to rotate, the second bevel gear 17 rotates to drive the rotating shaft V18 to rotate, the rotating shaft V18 rotates to drive the gear II 20 to rotate, the gear II 20 rotates to enable the crushing box 7 to rotate, the crushing box 7 rotates to drive the two gears I12 to rotate in the gear ring I13, so that the two rotating shafts II 9 can rotate, so that the crushing teeth I10 and the crushing teeth II 11 can rotate, so that the primarily crushed wood blocks can be secondarily crushed, the wood block crushing quality can be ensured through twice crushing, and the phenomenon of insufficient crushing can not occur, so that the wood blocks do not need to be manually crushed, the fourth rotating shaft 15 drives the hitting block 24 to rotate when rotating, so that the hitting block 24 is continuously contacted with the moving plate 22, the moving plate 22 is continuously moved leftwards and rightwards under the action of the spring 23, and the wood blocks which are crushed can fall into the discharge hopper 33 through the filter screen 26, and the wood blocks which are not crushed can be crushed.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a processing apparatus before raw materials for wood flour production, includes shell (1), its characterized in that: the top of the shell (1) is fixedly embedded with a shell (2), and a crushing mechanism is arranged in the shell (1);

the crushing mechanism comprises a motor (3), the motor (3) is fixedly connected to the front side of a shell (1), two first rotating shafts (4) are arranged inside a shell (2), the front ends and the rear ends of the first rotating shafts (4) extend to the outer portion of the front side and the outer portion of the rear side of the shell (2), crushing wheels (5) are fixedly sleeved outside the first rotating shafts (4), fixed blocks (6) are fixedly connected to the inner portion of the top of the shell (1), a crushing box (7) is arranged inside the shell (1), the bottom ends of the fixed blocks (6) extend to the inner portion of the crushing box (7) and are connected with the crushing box (7) through bearings, a connecting plate (8) is fixedly embedded inside the crushing box (7), two rotating shafts (9) are connected to the two sides of the connecting plate (8), and the outer ends of the two rotating shafts (9) extend to the outer portions of the two sides of the crushing box (7) respectively, two the equal fixed cover in pivot two (9) outside is equipped with broken tooth (10) and broken tooth two (11), two broken tooth (10) are located two broken tooth two (11) inboards, the outside cover of broken case (7) is equipped with fixed plate (35) and is connected through the bearing with fixed plate (35), fixed plate (35) fixed connection is inside shell (1), two the outside equal fixed cover in pivot two (9) outer end is equipped with gear (12), fixed plate (35) top fixedly connected with ring gear (13), gear (12) are located ring gear (13) top and mesh mutually with ring gear (13).

2. The pretreatment device for the raw material for wood flour production according to claim 1, characterized in that: the utility model discloses a motor, including shell (1), pivot four (15), shell (1) rear side is equipped with pivot three (14) and pivot four (15), pivot three (14) are located pivot four (15) tops, pivot three (14) front end runs through shell (1) and extends to shell (1) front side outside, pivot four (15) front end runs through shell (1) and is connected at motor (3) output shaft, pivot three (14) and pivot four (15) all are connected through the bearing with shell (1).

3. The pretreatment device for the raw material for wood flour production according to claim 2, characterized in that: the fixed cover in pivot three (14) outside is equipped with first bevel gear (16), first bevel gear (16) one side is equipped with second bevel gear (17), second bevel gear (17) and first bevel gear (16) mesh mutually, second bevel gear (17) one side fixedly connected with pivot five (18), the inside fixedly connected with dead lever (19) in shell (1) top, pivot five (18) run through pivot five (18) and extend to crushing case (7) one side, pivot five (18) pass through the bearing with dead lever (19) and are connected.

4. The pretreatment device for the raw material for wood flour production according to claim 3, characterized in that: the external fixed cover of five (18) one end of pivot is equipped with gear two (20), the external fixed cover of broken case (7) is equipped with ring gear two (21), gear two (20) are located ring gear two (21) top and mesh mutually with ring gear two (21).

5. The pretreatment device for the raw material for wood flour production according to claim 1, characterized in that: broken case (7) bottom is equipped with movable plate (22), movable plate (22) and broken case (7) bottom contact, movable plate (22) are located four (15) one sides of pivot, movable plate (22) one side fixedly connected with spring (23), spring (23) one end fixed connection is at shell (1) one side inner wall, the fixed cover of four (15) outsides of pivot is equipped with hits and hits piece (24), hit and hit piece (24) and movable plate (22) opposite side and contact, two slider (25) of movable plate (22) bottom fixedly connected with, two spouts have been seted up to shell (1) bottom inner wall, two slider (25) inlay respectively establish at two inside spouts and with the spout phase-match, movable plate (22) inside fixed the inlaying is equipped with filter screen (26).

6. The pretreatment device for the raw material for wood flour production according to claim 1, characterized in that: two the outside all fixed cover of pivot (4) rear end is equipped with three (27), two the gear three (27) meshes mutually, one of them pivot (4) and three (14) outside all fixed cover of pivot are equipped with sprocket (28), two sprocket (28) are located shell (1) front side outside, two sprocket (28) outside all is equipped with chain (29), two connect through a chain (29) drive between sprocket (28).

7. The pretreatment device for the raw material for wood flour production according to claim 2, characterized in that: the outer fixed cover of three (14) of pivot and four (15) of pivot is equipped with sprocket two (30), sprocket two (30) are located shell (1) rear side outside, two sprocket two (30) outside all is equipped with chain two (31), two through two (31) drive connection of chain between sprocket two (30).

8. The pretreatment device for the raw material for wood powder production according to claim 1, characterized in that: the inside connecting pipe (32) that is equipped with of shell (1), inside connecting pipe (32) bottom extended to broken case (7), shell (1) bottom outside is equipped with out hopper (33), go out hopper (33) bottom and extend to shell (1) inside and contact bottom movable plate (22).

9. The pretreatment device for the raw material for wood powder production according to claim 1, characterized in that: the four corners of the bottom of the shell (1) are fixedly connected with bases (34).

10. The pretreatment device for the raw material for wood flour production according to claim 1, characterized in that: the first rotating shaft (4) is connected with the shell (2) through a bearing, and the second rotating shaft (9) is connected with the crushing box (7) through a bearing.

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