CN111495496A

CN111495496A - Disc crusher capable of automatically cleaning

Info

Publication number: CN111495496A
Application number: CN201910503165.3A
Authority: CN
Inventors: 何文莉; 张宏维
Original assignee: Jiangxi Guangming Intelligent Technology Co ltd
Current assignee: Jiangxi Guangming Intelligent Technology Co ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-08-07

Abstract

The invention provides a disc grinder capable of automatically cleaning, which comprises a grinding mechanism, wherein the grinding mechanism comprises: the grinding device comprises a grinding cavity, a static grinding disc with a central hole and a movable grinding disc arranged opposite to the static grinding disc at intervals, wherein the movable grinding disc is connected with a power mechanism through a rotating shaft and can rotate, and the rotating shaft is arranged on a rotating shaft supporting seat through a bearing; the grinding device further comprises a cleaning mechanism, the cleaning mechanism comprises a movable plate arranged above the top plate of the grinding cavity, a lifting device is connected with the movable plate, a plurality of air pipes are arranged on the movable plate, the lower ends of the air pipes penetrate into the grinding cavity, and the lower ends of the air pipes are provided with spray holes. The invention solves the problem of pollution caused by the fact that the grinding cavity of the existing pulverizer needs to be opened for cleaning, and has the advantages of reasonable and ingenious structure and environmental protection.

Description

Disc crusher capable of automatically cleaning

Technical Field

The invention relates to a disc crusher capable of automatically cleaning and grinding minerals into powder, which is used in the field of mineral assay.

Background

In the field of mineral assay, minerals need to be ground into powder, and a plurality of technologies can achieve the effect, wherein the disc crusher is one of the technologies, and the disc crusher is characterized by high grinding speed and convenient discharge and cleaning.

The existing common disc grinder is provided with a motor, a movable grinding disc is arranged at the front end of the motor, a static grinding disc is arranged in a grinding cavity, a feeding hopper is arranged at the front end of the grinding cavity, and the feeding is manually carried out from the feeding hopper, so that the problem of uneven feeding is solved; when the grinding particle size needs to be adjusted, the gap between the gap movable grinding disc and the gap static grinding disc needs to be manually adjusted; the cavity can be opened laterally after grinding, and the cavity is cleaned manually. Therefore, the structure is simple and crude, manual cleaning is needed, manual feeding is needed, and the gap is manually adjusted.

However, no disc grinder which can automatically clean, feed and adjust the particle size exists in the market at present.

Disclosure of Invention

Therefore, the primary purpose of the invention is to overcome the technical problem that the existing disc grinder cannot automatically clean and the problem of dust raising caused by manually opening the grinding chamber for cleaning.

The invention also aims to overcome the problems that the existing disc grinder cannot automatically feed materials and manual feeding is not uniform.

The invention further aims to solve the problems that the gap cannot be automatically adjusted and time and labor are wasted through manual adjustment of the existing disc crusher, and provide the disc crusher, which solves the technical problems, improves the production efficiency and reduces the labor intensity.

In order to achieve the purpose, the invention adopts the technical scheme that:

a self-cleaning disc shredder including a grinding mechanism, the grinding mechanism comprising: the grinding cavity is provided with a feed inlet on the front end surface and a discharge outlet at the bottom, a static grinding disc with a central hole and a movable grinding disc which is arranged opposite to the static grinding disc at intervals are arranged on one side of the feed inlet in the grinding cavity, the movable grinding disc is connected with a power mechanism through a rotating shaft and can rotate, and the rotating shaft is arranged on a rotating shaft supporting seat through a bearing; the method is characterized in that: grind the chamber and be equipped with a clean mechanism, clean mechanism includes that one is established the fly leaf of the roof top in grinding the chamber, and a elevating gear with the fly leaf is connected and is made the fly leaf can grind the roof oscilaltion in chamber relatively, is equipped with several trachea on the fly leaf, and the trachea top is equipped with the air inlet, tracheal lower extreme passes and grinds the chamber roof and carries out elevating movement in grinding the chamber, tracheal lower extreme has the orifice.

Preferably, the grinding device further comprises a frame, and the grinding chamber is fixed on an upper mounting plate of the frame.

Preferably, the lifting device comprises two lifting cylinders arranged on the top plate of the grinding cavity, and two ends of the movable plate are connected with the telescopic ends of the two lifting cylinders; an upper fixed plate and a grinding cavity top plate are arranged above the movable plate in parallel, a vertical guide rail is arranged between the upper fixed plate and the grinding cavity top plate, and the movable plate is connected with the guide rail in a sliding mode and can move up and down along the guide rail under the driving of the lifting cylinder.

Preferably, the bottom end of the air pipe is closed, and the spray holes are formed in the side face of the lower end of the air pipe.

In order to clean the grinding cavity in all directions without dead angles, as a preferable mode, the air pipe is further connected with a rotation driving device capable of driving the air pipe to rotate by 360 degrees, and the rotation driving device comprises: a driving motor is arranged on the movable plate, a motor toothed belt wheel is arranged at the output shaft end of the driving motor, a driven toothed belt wheel is arranged at the upper end of the air pipe, and a toothed belt is wound between the motor toothed belt wheel and the driven toothed belt wheel and used for driving the air pipe to rotate.

Preferably, the number of the air pipes is at least two, each pair of air pipes is symmetrically arranged along the center line of the movable grinding disc, the position of one pair of air pipes is positioned in front of the static grinding disc, and the pair of air pipes is positioned just above the gap between the movable grinding disc and the static grinding disc when the movable grinding disc moves backwards; and the other at least one pair of air pipes are arranged at the positions corresponding to the rear cavity of the movable grinding disc.

In order to realize uniform and automatic feeding, the disc grinder capable of being automatically cleaned is characterized in that a feeding mechanism is arranged at a feeding port of the grinding cavity as a preferable mode, the feeding mechanism comprises a hopper and a spiral feeder connected to the downstream outlet end of the hopper, one end of a spiral shaft of the spiral feeder is connected with a feeding driver, and one end of the spiral feeder, opposite to the feeding driver, is provided with a feeding port; the feeding port is communicated with the feeding port of the grinding cavity.

In order to automatically adjust the gap between the movable millstone and the static millstone, the rotating shaft supporting seat of the disc grinder capable of being automatically cleaned is fixed on the frame through an adjusting device capable of adjusting the distance between the movable millstone and the static millstone.

In the self-cleaning disc mill according to the present invention, preferably, the adjusting device includes: the sliding block is arranged below the rotating shaft supporting seat and can move on the plane along the axial direction of the rotating shaft, and the sliding block is connected with a guide rail arranged on the rack in a sliding manner; the connecting plate is arranged between the sliding block and the rotating shaft supporting seat, an end plate is arranged on the end face of the connecting plate, a nut is fixedly connected onto the end plate and connected with a lead screw, the body of the lead screw is fixed in position through an adjusting bearing seat, one end of the lead screw is connected with a servo motor, and the adjusting bearing seat and the servo motor are fixedly arranged on the rack.

The disc crusher capable of automatically cleaning provided by the invention has the advantages that as a preferred mode, the power mechanism comprises a driving motor, the tail end of the rotating shaft extends out of the end part of the rotating shaft supporting seat, the tail end of the rotating shaft and the output shaft end of the driving motor are provided with transmission devices, and the rotating shaft is provided with a transmission supporting device.

In the self-cleaning disc mill according to the present invention, preferably, the transmission support device includes: the belt pulley comprises a rotating shaft, a fixed belt pulley support, a shaft sleeve, a flange plate and a bearing, wherein the fixed belt pulley support is arranged at the tail end of the rotating shaft and is adjacent to the belt pulley, the shaft sleeve capable of axially moving relative to the rotating shaft is arranged between the belt pulley support and the rotating shaft, the end part of the shaft sleeve is provided with the flange plate connected with the end surface of the belt pulley, and the bearing is arranged between the shaft sleeve and the belt.

In the disc crusher capable of automatically cleaning according to the present invention, preferably, the transmission device includes belt pulleys provided at an end of the rotating shaft and an end of the driving motor shaft, and a belt connected between the two belt pulleys.

By adopting the technical scheme, the automatic cleaning mechanism is arranged on the grinding cavity, particularly, high-pressure air is directly conveyed between the static grinding disc and the movable grinding disc through the air pipe, and the cleaning is carried out in a relatively closed state of the grinding cavity, so that the grinding cavity does not need to be manually opened for cleaning, the dust pollution is avoided, and the labor intensity of workers is also reduced.

The invention further adds an automatic feeding device, and the feeding is uniformly and automatically finished by spiral feeding, so that the labor intensity of workers is reduced.

The invention further adds an adjusting device for automatically adjusting the clearance between the movable millstone and the static millstone under the rotating shaft supporting seat, and can automatically and conveniently adjust the clearance between the movable millstone and the static millstone so as to change the grinding granularity.

Therefore, the invention greatly improves the production efficiency, avoids environmental pollution and reduces the labor intensity of workers. The disc crusher provided by the invention has the advantages of reasonable structure, ingenious arrangement, high automation degree and contribution to environmental protection.

Drawings

Fig. 1 is a schematic view of the overall structure of a disc mill provided by the present invention.

Fig. 2 is a sectional view of the feeding mechanism.

FIG. 3 is a cross-sectional view of the grinding mechanism;

FIG. 4 is a perspective view of the cleaning mechanism;

FIG. 5 is a schematic view of the air tube arrangement of the cleaning mechanism;

fig. 6 is a schematic view of the structure of the slider and the guide rail of the lapping mechanism.

Description of reference numerals: the feeding mechanism 1, the hopper 11, the spiral feeder 12, the coupling 13, the feeding driver 14 and the feeding port 121; the grinding mechanism 2, the grinding cavity 21, the feeding port 211, the discharging hopper 212, the discharging port 213, the top plate 214, the static grinding disc 22, the movable grinding disc 23, the rotating shaft 24, the bearing 241, the adjusting device 25, the sliding block 251, the screw nut 252, the screw rod 253, the adjusting bearing seat 254, the coupling 255, the servo motor 256, the guide rail 257, the connecting plate 258 and the end plate 2581; a rotating shaft support base 26; the device comprises a power mechanism 3, a driving motor 31, a transmission device 32, a belt pulley 321, a belt 322, a transmission supporting device 33, a belt pulley bracket 331, a shaft sleeve 332 and a bearing 333; the cleaning device comprises a cleaning mechanism 5, a lifting device 51, a lifting cylinder 511, an upper fixed plate 512, a guide rail 513, an air pipe 52a, an air pipe 52b, an air pipe 52c, an air inlet 521, a spray hole 522, a movable plate 53, a connecting plate 531, a rotary driving device 54, a driving motor 541, a motor toothed belt wheel 542 and a driven toothed belt wheel 543; frame 6, upper mounting plate 61.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings, but the scope of the present invention should not be limited by the preferred embodiments.

As shown in fig. 1, the present invention provides a disc grinder capable of automatic cleaning, which comprises a grinding mechanism 2, wherein the grinding mechanism 2 comprises a grinding chamber 21 with a feeding port 211 and a discharging port 213, a static grinding disc 22 with a central hole is arranged in the grinding chamber 21 at one side of the feeding port 211, a movable grinding disc 23 is arranged opposite to the static grinding disc 22 at an interval, and the movable grinding disc 23 is connected with a power mechanism 3 through a rotating shaft 24 and can rotate; namely, the front end of the rotating shaft 24 extends into the grinding cavity 21 and is provided with a movable grinding disc 23; the rear end is connected with the power mechanism 3 outside the grinding cavity 21, and the middle part is arranged on the rotating shaft supporting seat 26 through a bearing; it also comprises a frame 6, the grinding chamber 21 being fixed to an upper mounting plate 61 of the frame 6. Specifically, as shown in fig. 1 and 3, the grinding chamber 21 is composed of a front end plate, a rear end plate, a left end plate, a right end plate, a top plate 214, and a discharge hopper 212 at the bottom, wherein the front end plate is provided with a feed port 211, and the bottom of the lower end of the discharge hopper 212 is provided with a discharge port 213; the static grinding disc 22 in a static state is arranged at the feed inlet 211, the center of the static grinding disc 22 is provided with an opening and is communicated with the feed inlet 211 arranged on the front end plate and a feed inlet 121 (detailed later) of the feed mechanism 1, one side of the static grinding disc 22 opposite to the feed inlet of the grinding cavity is provided with movable grinding discs 23 at intervals and oppositely, the movable grinding discs 23 are connected with a rotating shaft 24, the rotating shaft 24 is arranged on a rotating shaft supporting seat 26 through a bearing 241, and a belt pulley 321 of a power mechanism 3 is arranged on the rotating shaft 24 and can drive the movable grinding discs 23 to rotate so that materials are ground between the opposite friction surfaces of the movable grinding discs 23 and the static grinding discs 22; in this embodiment, a flying saucer-shaped spacing cavity with a wide center and a narrow edge is formed between the movable grinding disc 23 and the static grinding disc 22 and used for storing a material to be ground, the distance between the edges of the two is minimum to form the relative friction surface, after the material enters between the movable grinding disc 23 and the static grinding disc 22, the material is thrown out to the edge position under the rotation driving of the movable grinding disc 23, and is ground by the relative friction surface to form particles with a particle size smaller than the distance between the relative friction surface, and finally, the particles are thrown out from the edge gap between the movable grinding disc 23 and the static grinding disc 22; as shown in fig. 1 and 4, the disc grinder further includes a cleaning mechanism 5, and the cleaning mechanism 5 is preferably disposed on the upper surface of the ceiling 214 of the grinding chamber.

As shown in fig. 1 and 5, the cleaning mechanism 5 has a movable plate 53 preferably arranged in parallel with the top plate 214 of the grinding chamber, and a lifting device 51 connected to the movable plate 53 enables the movable plate 53 to be lifted up and down relative to the top plate 214 of the grinding chamber, a plurality of air pipes 52 are provided on the movable plate 53, and an air inlet 521 is provided at the top end of each air pipe 52 for communicating compressed air; the lower end of the air pipe 52 can pass through the grinding chamber top plate 214 to move up and down in the grinding chamber, the lower end of the air pipe 52 is provided with spray holes 522, the bottom end of the air pipe 52 is preferably closed, and the spray holes 522 are arranged on the side surface of the lower end of the air pipe, so that high-pressure air can be sprayed to the periphery, and the cleaning effect is improved.

Specifically, in the present embodiment, the lifting device 51 includes two lifting cylinders 511 disposed on the top plate 214 of the grinding chamber, and the two ends of the movable plate 53 are connected to the telescopic ends of the two lifting cylinders through the connecting members 531; an upper fixed plate 512 is disposed above the movable plate 53 in parallel with the grinding chamber top plate 214, a vertical guide 513 is disposed between the upper fixed plate 512 and the grinding chamber top plate 214, the movable plate 53 is slidably connected to the guide 513 and can move up and down along the guide 513 under the driving of the lifting cylinder 511, thereby driving the air pipe 52 to lift.

In order to make all-round clearance grinding chamber of highly-compressed air, move, quiet mill, trachea 52 still is connected with and can drives trachea 52 and carry out the rotation driving device 54 of 360 degrees rotations, and rotation driving device 54 includes: a driving motor 541 disposed on the movable plate 53, preferably at the bottom of the movable plate 53, wherein an output shaft of the driving motor 541 passes through the movable plate 53 to the upper surface of the movable plate 53, an output shaft end of the driving motor 541 is provided with a motor toothed pulley 542, an upper end of each air tube 52 is provided with a driven toothed pulley 543, and a toothed belt (not shown) is wound between the motor toothed pulley 542 and the driven toothed pulley 543 for driving the air tube 52 to rotate.

Referring to fig. 5, the air pipes 52 are preferably symmetrically arranged in pairs, at least two pairs, in this embodiment three pairs, each pair of air pipes is symmetrically arranged along the center line of the movable grinding disc 23, and one pair of air pipes 52a is located in front of the stationary grinding disc 22, and the pair of air pipes 52 is located just above the gap between the movable grinding disc 23 and the stationary grinding disc 22 when the movable grinding disc 23 moves backwards; the other pair of air pipes 52b are positioned at two sides of the periphery of the movable grinding disc 23, and the third pair of air pipes 52c are arranged behind the movable grinding disc 23. With the arrangement, when the grinding cavity 21 needs to be cleaned, the movable grinding disc 23 moves backwards to the limit position, then the lifting device 51 drives the air pipe 52 to descend to the positions of the side surface and the rear surface of the movable grinding disc 23 and the fixed

grinding disc

22 and 23 which do not stop moving up and down, and the driving motor 541 drives the air pipe 52 to rotate 360 degrees, high-pressure gas sprayed from the spray holes 522 can sweep the inner wall of the grinding cavity 21 without dead angles, and materials attached to the inner wall of the grinding cavity 21 are cleaned.

In order to enable the disc grinder provided by the invention to uniformly supply materials to the grinding cavity, in another embodiment of the invention, a feeding mechanism 1 is additionally arranged at a feeding port of the grinding cavity 21, namely a feeding mechanism 11 is positioned at the upstream of the grinding mechanism 2; as shown in fig. 1 and 2, the feeding mechanism 1 includes a hopper 11 and a screw feeder 12 connected to a downstream end of the hopper 11, one end of a screw shaft of the screw feeder 12 is connected to a feeding driver 14 (e.g., a motor) through a coupling 13, and an end of the screw feeder 12 opposite to the feeding driver 14 is provided with a feeding port 121; the feeding opening 121 is communicated with the feeding opening 211 of the grinding chamber, after the materials are put into the hopper 11, the feeding driver 14 drives the screw shaft to rotate, so that the materials uniformly enter the grinding chamber 21 from the feeding opening 121 along the screw shaft, and the purpose of uniform feeding is achieved. The embodiment is characterized in that a feeding mechanism for uniformly feeding is added on the basis of a cleaning mechanism arranged on the disc crusher.

In order to adjust the gap between the moving and static grinding disks conveniently, in another embodiment of the present invention, an adjusting device 25 is further added to the grinding mechanism 2 in the first embodiment, and the adjusting device 25 is used for adjusting the gap between the moving and static grinding disks to grind materials with different particle sizes.

Referring to fig. 3, the adjusting device 25 is fixed on the upper mounting plate 61 of the rack, and the adjusting device 25 is connected to the rotating shaft supporting seat 26, and can drive the rotating shaft supporting seat 26 to move away from and close to the static grinding disc 22, so that the gap between the movable grinding disc 23 and the static grinding disc 22 can be adjusted by moving the rotating shaft supporting seat 26, and the particle size of the ground material can be adjusted correspondingly; in the present embodiment, the adjusting device 25 includes: referring to fig. 3 and 6, a slide block 251 disposed below the rotating shaft support base 26 and capable of moving on a plane along the axial direction of the rotating shaft 24, and a guide rail 257 for sliding the slide block 251 is provided above the upper mounting plate 61 of the frame; a connecting plate 258 is arranged between the sliding block 251 and the rotating shaft supporting seat 26, an end plate 2581 is arranged on the end surface of the connecting plate 258, a nut 252 is fixedly connected to the end plate 2581, a screw rod 253 is connected to the nut 252, the body of the screw rod 253 is fixed in position through an adjusting bearing seat 254, one end of the screw rod 253 is connected with a servo motor 256 through a coupler 255, and the adjusting bearing seat 254 and the servo motor 256 are both fixed on an upper mounting plate 61 of the frame 6. When the servo motor 256 rotates, the screw rod 253 rotates along with the screw rod, so that the screw nut 252 is driven to axially move on the screw rod 253, the slide block 251 is driven by the connecting plate 258 to linearly move along the guide rail 257, and the rotating shaft supporting seat 26 and the rotating shaft 24 are driven to synchronously move, so that the size of a gap between the movable grinding disc 23 and the static grinding disc 22 can be adjusted.

Referring to fig. 3, the power mechanism 3 in the above embodiment is located at the side of the grinding mechanism 2, and includes a driving motor 31, the driving motor 31 is fixed on the upper mounting plate 61 of the frame 6, and the tail end of the rotating shaft 24 extends from the rear end of the rotating shaft supporting seat 26; a transmission device 32 is arranged between the tail end of the rotating shaft 24 and the output shaft end of the driving motor 31, and the transmission device 32 comprises belt pulleys 321 arranged at the end part of the rotating shaft and the end part of the driving motor shaft and a belt 322 connected between the two belt pulleys 321; in order to improve the stability of the rotating shaft 24 and facilitate the axial movement of the rotating shaft 24, a transmission supporting device 33 is provided at the tail end of the rotating shaft 24, and the transmission supporting device 33 includes: a fixed belt wheel support 331 provided at the rear end of the rotation shaft 24 adjacent to the belt wheel 322 and fixed to the frame 6; a shaft sleeve 332 which can move axially relative to the rotating shaft 24 is arranged between the belt wheel support 331 and the rotating shaft 24, namely, the shaft sleeve 322 and the rotating shaft can be connected by a spline, the end part of the shaft sleeve 332 is provided with a flange connected with the end surface of the belt wheel 321, and a bearing 333 is arranged between the shaft sleeve 332 and the belt wheel support 331. The transmission support device 33 provides radial support and fixation of the rotating shaft 24, and provides freedom for the rotating shaft 24 to move axially, so that the rotating shaft support seat 26, the rotating shaft 24 and the movable grinding disc 23 can move axially under the action of the adjusting device 25.

In summary, the disc grinder capable of automatic cleaning provided by the above embodiments of the present invention has a primary object to enable the cleaning mechanism 5 to automatically clean the grinding chamber 21 in a closed state without dead angle; the adjustment of the grinding granularity is automatically and conveniently realized by the adjusting device 25; further, even feeding is realized by arranging the feeding mechanism 1.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A self-cleaning disc shredder including a grinding mechanism, the grinding mechanism comprising: the grinding cavity is provided with a feed inlet on the front end surface and a discharge outlet at the bottom, a static grinding disc with a central hole and a movable grinding disc which is arranged opposite to the static grinding disc at intervals are arranged on one side of the feed inlet in the grinding cavity, the movable grinding disc is connected with a power mechanism through a rotating shaft and can rotate, and the rotating shaft is arranged on a rotating shaft supporting seat through a bearing; the method is characterized in that: grind the chamber and be equipped with a clean mechanism, clean mechanism includes that one is established the fly leaf of the roof top in grinding the chamber, and a elevating gear with the fly leaf is connected and is made the fly leaf can grind the roof oscilaltion in chamber relatively, is equipped with several trachea on the fly leaf, and the trachea top is equipped with the air inlet, tracheal lower extreme passes and grinds the chamber roof and carries out elevating movement in grinding the chamber, tracheal lower extreme has the orifice.

2. The automatically cleanable disc shredder according to claim 1, wherein: the grinding device also comprises a frame, and the grinding cavity is fixed on an upper mounting plate of the frame.

3. The automatically cleanable disc shredder according to claim 2, wherein: the lifting device comprises two lifting cylinders arranged on the top plate of the grinding cavity, and two ends of the movable plate are connected with the telescopic ends of the two lifting cylinders; an upper fixed plate and a grinding cavity top plate are arranged above the movable plate in parallel, a vertical guide rail is arranged between the upper fixed plate and the grinding cavity top plate, and the movable plate is connected with the guide rail in a sliding mode and can move up and down along the guide rail under the driving of the lifting cylinder.

4. A self-cleanable disc shredder according to claim 3, wherein: the bottom end of the air pipe is closed, and the spray holes are formed in the side face of the lower end of the air pipe.

5. The automatically cleanable disc shredder according to claim 4, wherein: the trachea still is connected with and can drives the trachea carries out the rotation driving device of 360 degrees rotations, rotation driving device includes: a driving motor is arranged on the movable plate, a motor toothed belt wheel is arranged at the output shaft end of the driving motor, a driven toothed belt wheel is arranged at the upper end of the air pipe, and a toothed belt is wound between the motor toothed belt wheel and the driven toothed belt wheel and used for driving the air pipe to rotate.

6. The automatically cleanable disc shredder according to claim 5, wherein: the air pipes are at least two pairs, each pair of air pipes are symmetrically arranged along the central line of the movable grinding disc, the position of one pair of air pipes is positioned in front of the static grinding disc, and when the movable grinding disc moves backwards, the pair of air pipes are just positioned above a gap between the movable grinding disc and the static grinding disc; and the other at least one pair of air pipes are arranged at the positions corresponding to the rear cavity of the movable grinding disc.

7. A self-cleanable disc shredder according to any one of claims 1 to 6, wherein: a feeding mechanism is arranged at a feeding port of the grinding cavity, the feeding mechanism comprises a hopper and a spiral feeder connected to the downstream outlet end of the hopper, one end of a spiral shaft of the spiral feeder is connected with a feeding driver, and a feeding port is arranged at one end of the spiral feeder opposite to the feeding driver; the feeding port is communicated with the feeding port of the grinding cavity.

8. A self-cleanable disc shredder according to any one of claims 2 to 6, wherein: the rotating shaft supporting seat is fixed on the rack through an adjusting device capable of adjusting the distance between the movable grinding disc and the static grinding disc.

9. The automatically cleanable disc shredder according to claim 8, wherein: the adjusting device comprises: the sliding block is arranged below the rotating shaft supporting seat and can move on the plane along the axial direction of the rotating shaft, and the sliding block is connected with a guide rail arranged on the rack in a sliding manner; the connecting plate is arranged between the sliding block and the rotating shaft supporting seat, an end plate is arranged on the end face of the connecting plate, a nut is fixedly connected onto the end plate and connected with a lead screw, the body of the lead screw is fixed in position through an adjusting bearing seat, one end of the lead screw is connected with a servo motor, and the adjusting bearing seat and the servo motor are fixedly arranged on the rack.

10. The automatically cleanable disc shredder according to claim 9, wherein: the power mechanism comprises a driving motor arranged on the upper surface of the mounting plate on the frame, the tail end of the rotating shaft extends out of the end part of the rotating shaft supporting seat, a transmission device is arranged at the tail end of the rotating shaft and the output shaft end of the driving motor, and the rotating shaft is provided with a transmission supporting device.

11. The automatically cleanable disc shredder according to claim 10, wherein: the transmission support device comprises: the belt pulley comprises a rotating shaft, a fixed belt pulley support, a shaft sleeve, a flange plate and a bearing, wherein the fixed belt pulley support is arranged at the tail end of the rotating shaft and is adjacent to the belt pulley, the shaft sleeve capable of axially moving relative to the rotating shaft is arranged between the belt pulley support and the rotating shaft, the end part of the shaft sleeve is provided with the flange plate connected with the end surface of the belt pulley, and the bearing is arranged between the shaft sleeve and the belt.

12. The automatically cleanable disc shredder according to claim 11, wherein: the transmission device comprises belt pulleys arranged at the end part of the rotating shaft and the end part of the driving motor shaft and a belt connected between the two belt pulleys.