CN216704629U - Raw materials reducing mechanism is used in building material production - Google Patents
Raw materials reducing mechanism is used in building material production Download PDFInfo
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- CN216704629U CN216704629U CN202123377147.7U CN202123377147U CN216704629U CN 216704629 U CN216704629 U CN 216704629U CN 202123377147 U CN202123377147 U CN 202123377147U CN 216704629 U CN216704629 U CN 216704629U
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Abstract
The utility model discloses a raw material crushing device for building material production, which relates to the technical field of building material production and comprises the following components: a crushing box; the storage barrel is fixedly connected to the top end of the crushing box; the motor, the motor is installed smash one side outer wall of case. According to the utility model, through the arrangement of the crushing mechanism, when the motor drives the connecting shaft to rotate and simultaneously drives the large bevel gear to rotate, the first small bevel gear is driven to drive the first rotating rod to rotate, the first rotating rod rotates to drive the outer wall first belt pulley to rotate, the first belt pulley rotates to drive the outer wall first belt pulley to rotate, so that the crushing rod is driven to drive the outer wall multiple groups of crushing cutters to rotate, and crushed raw materials entering the crushing box are crushed for the second time, and the function of crushing the raw materials for the second time is realized through the matching of the multiple groups of parts, so that the raw material crushing effect is improved.
Description
Technical Field
The utility model relates to the technical field of building material production, in particular to a raw material crushing device for building material production.
Background
Building materials are a general term for materials used in civil engineering and construction. It can be divided into structural material, decorative material and some special materials. The structural material comprises wood, bamboo, stone, cement, concrete, metal, tiles, ceramics, glass, engineering plastics, composite materials and the like, and the building material needs to be crushed by a crushing device when being produced.
The raw materials reducing mechanism is generally carried out simple crushing to it through crushing roller for current building material production for crushing effect is not good enough, from the production that influences building material, and current building material production is generally carried between and smashes incasement portion, piles up on the top of crushing roller, influences easily that crushing roller carries out crushing effect to it, can not carry crushing incasement portion with raw materials intermittent type nature, thereby has reduced raw materials crushing efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: in order to solve the crushing device to the raw materials crushing effect relatively poor with can not carry the inside problem of crushing incasement with raw materials intermittent type nature, provide a raw materials reducing mechanism for building material production.
In order to achieve the purpose, the utility model provides the following technical scheme: a raw material crushing device for building material production comprises:
a crushing box;
the storage barrel is fixedly connected to the top end of the crushing box;
the motor is mounted on the outer wall of one side of the crushing box, the output end of the motor is provided with a connecting shaft, one end of the connecting shaft penetrates through the inner wall of the crushing box and is rotatably connected with the crushing box, and the outer wall of the connecting shaft is sleeved with a straight gear;
the crushing roller is rotatably connected inside the crushing box, and one end of the crushing roller is fixedly connected with the connecting shaft;
the crushing mechanism is distributed on the outer wall of the connecting shaft, penetrates into the crushing box and is used for secondarily crushing the raw materials entering the crushing box;
the auxiliary mechanism is distributed on the outer wall of the connecting shaft, penetrates through the inner part of the crushing box and the inner part of the storage barrel and is used for enabling raw materials to enter the inner part of the crushing box intermittently.
As a still further scheme of the utility model: crushing mechanism includes first transfer pole, first bevel pinion, big bevel gear, crushing pole and first belt pulley, big bevel gear cup joints the outer wall of connecting axle, and is located one side of straight-teeth gear, first transfer pole rotates to be connected smash one side outer wall of case, and is located the below of connecting axle, first bevel pinion fixed connection be in the top of first transfer pole, and with big bevel gear meshes and connects, first belt pulley cup joints first transfer pole bottom outer wall, crushing pole rotates to be connected smash the inside of case, and one end run through extremely smash the bottom of case.
As a still further scheme of the utility model: the auxiliary mechanism comprises a second rotating rod, a second belt pulley, a third rotating rod, a conical block, a connecting shell, a second small bevel gear, a third small bevel gear, a reciprocating screw rod and a threaded sleeve, wherein the second belt pulley is sleeved on the outer wall of the connecting shaft, the second rotating rod is rotatably connected with one side outer wall of the crushing box and positioned above the connecting shaft, the connecting shell is fixedly connected inside the crushing box and positioned above the crushing roller, the third rotating rod is rotatably connected inside the connecting shell, one end of the third rotating rod is penetrated to one side outer wall of the crushing box and is fixedly connected with the second rotating rod, the third small bevel gear is fixedly connected with one end of the third rotating rod, the second small bevel gear is rotatably connected inside the connecting shell and is meshed with the third small bevel gear, the reciprocating screw rod is rotatably connected with the top end of the connecting shell, and the thread bush is connected with the top end of the connecting shell in a sliding manner and is sleeved on the outer wall of the reciprocating screw rod, and the conical block is fixedly connected with the top end of the thread bush.
As a still further scheme of the utility model: first pivot pole with the bottom of smashing the pole has cup jointed first bearing cover respectively, first pivot pole through outer wall first bearing cover with smash the case and rotate and be connected, the outer wall of smashing the pole is located smash the sword of the inside fixedly connected with multiunit of case.
As a still further scheme of the utility model: the first belt pulley is provided with two sets, and another group the first belt pulley cup joints the outer wall of crushing pole, first belt is installed to the outer wall of first belt pulley, and is two sets of first belt pulley passes through first belt rotates and connects.
As a still further scheme of the utility model: the second belt pulley is provided with two sets ofly, another group the second belt pulley cup joints the outer wall of second dwang, the second belt is installed to the outer wall of second belt pulley, and is two sets of the second belt pulley passes through the second belt rotates and connects, the one end of second dwang with the second bearing cover has been cup jointed respectively to the outer wall of third dwang, the second dwang pass through one end second bearing cover with it rotates to smash the case and connects, the third dwang pass through outer wall second bearing cover with it rotates to connect the shell and connects.
As a still further scheme of the utility model: the bottom fixedly connected with connecting rod of reciprocal lead screw, just the connecting rod run through extremely the inside of connecting shell with second bevel pinion fixed connection, the bottom fixedly connected with pivot of second bevel pinion, the second bevel pinion pass through the bottom pivot with the connecting shell rotates and connects, the outer wall fixedly connected with stopper of thread bush, the thread bush pass through outer wall fixed connection's stopper with connecting shell inner wall sliding connection.
Compared with the prior art, the utility model has the beneficial effects that:
1. through the arrangement of the crushing mechanism, when the motor drives the connecting shaft to rotate and simultaneously drives the large bevel gear to rotate, the first small bevel gear is driven to drive the first rotating rod to rotate, the first rotating rod rotates to drive the first belt pulley on the outer wall to rotate, the first belt pulley rotates to drive the first belt on the outer wall to drive the first belt pulley on the outer wall of the crushing rod to rotate, so that the crushing rods are driven to drive the crushing knives of the outer wall to rotate, crushed raw materials entering the crushing box are crushed for the second time, the function of crushing the raw materials for the second time is realized through the matching of the parts, and the crushing effect of the raw materials is improved;
2. by arranging the auxiliary mechanism, the bottom end of the storage barrel is provided with a feed opening communicated with the crushing box, the conical block is arranged at the top end of the feed opening, the motor drives the connecting shaft to rotate and simultaneously drives the second belt pulley to rotate, the second belt pulley is driven to rotate on the outer wall of the second rotating rod through the second belt, thereby driving the third small bevel gear to rotate through the third rotating rod, the third small bevel gear drives the second small bevel gear to rotate through the connecting rod to drive the reciprocating screw rod to rotate, thereby driving the thread sleeve to drive the conical block to reciprocate on the outer wall of the reciprocating screw rod, opening the feed opening of the storage barrel when the conical block moves upwards, leading the raw material to enter the crushing box through the feed opening, when the toper piece resets, carry out the shutoff with the raw materials through the feed opening, make raw materials intermittent type formula enter into crushing incasement portion through the cooperation of above multiunit part, avoid the raw materials to pile up in crushing incasement portion.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the utility model at A;
FIG. 3 is a cross-sectional view of the grinding bin and storage bin of the present invention;
FIG. 4 is an enlarged view of the utility model at B;
fig. 5 is an enlarged view of the present invention at C.
In the figure: 1. a crushing box; 2. a storage barrel; 3. a crushing mechanism; 301. a first rotating lever; 302. a first bevel pinion; 303. a large bevel gear; 304. crushing the stems; 305. a first pulley; 4. a motor; 5. a connecting shaft; 6. a spur gear; 7. an auxiliary mechanism; 701. a second rotating rod; 702. a second pulley; 703. a third rotating rod; 704. a conical block; 705. a connecting shell; 706. a second bevel pinion; 707. a third bevel pinion; 708. a reciprocating screw rod; 709. a threaded sleeve; 8. a crushing roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, in an embodiment of the present invention, a raw material crushing apparatus for building material production includes:
a crushing box 1;
the storage barrel 2 is fixedly connected to the top end of the crushing box 1;
the motor 4 is arranged on the outer wall of one side of the crushing box 1, the output end of the motor 4 is provided with a connecting shaft 5, one end of the connecting shaft 5 penetrates through the inner wall of the crushing box 1 and is rotatably connected with the crushing box 1, and the outer wall of the connecting shaft 5 is sleeved with a straight gear 6;
the crushing roller 8 is rotatably connected inside the crushing box 1, and one end of the crushing roller 8 is fixedly connected with the connecting shaft 5;
the crushing mechanism 3 is distributed on the outer wall of the connecting shaft 5, penetrates into the crushing box 1 and is used for secondarily crushing the raw materials entering the crushing box 1;
the auxiliary mechanism 7 is distributed on the outer wall of the connecting shaft 5 and penetrates through the inside of the crushing box 1 and the inside of the storage barrel 2, and is used for enabling raw materials to enter the crushing box 1 intermittently.
In this embodiment: smash 1 inner wall of case and offer the blow off groove that runs through to crushing 1 one side outer wall, the straight-teeth gear is provided with two sets ofly, another set of straight-teeth gear cup joints the outer wall at another set of connecting axle 5, it is inside to place storage vat 2 with needs kibbling raw materials, then driving motor 4 drive connecting axle 5 drives straight-teeth gear 6 rotatory, thereby it rotates to drive another set of connecting axle 5 of a set of straight-teeth gear 6 drive another set of connecting axle 5, thereby make two sets of crushing rollers 8 carry out synchronous rotation, drive complementary unit 7 when a set of connecting axle 5 is rotatory, make 2 inside raw materials intermittent type of storage vat enter into crushing 1 inside of case, smash through two sets of crushing rollers 8, it is rotatory to drive rubbing crusher mechanism 3 when a set of connecting axle 5 is rotatory, carry out regrinding to the raw materials, discharge the external world through the groove.
Please refer to fig. 1, 2, 3, and 5, the crushing mechanism 3 includes a first rotating rod 301, a first small bevel gear 302, a large bevel gear 303, a crushing rod 304, and a first belt pulley 305, wherein the large bevel gear 303 is sleeved on the outer wall of the connecting shaft 5 and is located on one side of the spur gear 6, the first rotating rod 301 is rotatably connected to the outer wall of one side of the crushing box 1 and is located below the connecting shaft 5, the first small bevel gear 302 is fixedly connected to the top end of the first rotating rod 301 and is engaged with the large bevel gear 303, the first belt pulley 305 is sleeved on the outer wall of the bottom end of the first rotating rod 301, the crushing rod 304 is rotatably connected to the inside of the crushing box 1, and one end of the crushing rod penetrates to the bottom end of the crushing box 1.
In this embodiment: drive 5 rotatory big bevel gear 303 of driving simultaneously of connecting axle when motor 4 rotation to drive first bevel pinion 302 and drive first rotation pole 301 rotatory, first rotation pole 301 is rotatory to drive the first belt pulley 305 of outer wall rotatory, the first belt of first belt pulley 305 rotatory drive outer wall drives the first belt pulley 305 of crushing pole 304 outer wall rotatory, thereby drive crushing pole 304 and drive the outer wall multiunit and smash the sword and rotate, carry out the regrinding to the raw materials after entering into crushing case 1 inside crushing.
Referring to fig. 2-4, the auxiliary mechanism 7 includes a second rotating rod 701, a second pulley 702, a third rotating rod 703, a tapered block 704, a connecting shell 705, a second bevel pinion 706, a third bevel pinion 707, a reciprocating screw rod 708 and a thread bushing 709, the second pulley 702 is sleeved on the outer wall of the connecting shaft 5, the second rotating rod 701 is rotatably connected to the outer wall of one side of the crushing box 1 and located above the connecting shaft 5, the connecting shell 705 is fixedly connected to the inside of the crushing box 1 and located above the crushing roller 8, the third rotating rod 703 is rotatably connected to the inside of the connecting shell 705, one end of the third rotating rod 703 penetrates through the outer wall of one side of the crushing box 1 and is fixedly connected to the second rotating rod 701, the third bevel pinion 707 is fixedly connected to one end of the third rotating rod 703, the second bevel pinion 706 is rotatably connected to the inside of the connecting shell 705 and is engaged with the third bevel pinion 707, the reciprocating screw rod 708 is rotatably connected to the top end of the connecting shell 705, and is fixedly connected with a second small bevel gear 706, a threaded sleeve 709 is slidably connected at the top end of the connecting shell 705 and is sleeved on the outer wall of the reciprocating screw rod 708, and a conical block 704 is fixedly connected at the top end of the threaded sleeve 709.
In this embodiment: the bottom end of the storage barrel 2 is provided with a feed opening communicated with the crushing box 1, the conical block 704 is arranged at the top end of the feed opening, the motor 4 drives the connecting shaft 5 to rotate and simultaneously drive the second belt pulley 702 to rotate, the second belt pulley 702 on the outer wall of the second rotating rod 701 is driven to rotate through the second belt, so that the third small bevel gear 707 is driven to rotate through the third rotating rod 703, the third small bevel gear 707 drives the second small bevel gear 706 to rotate through the connecting rod to drive the reciprocating screw rod 708 to rotate, so that the threaded sleeve 709 is driven to drive the conical block 704 to reciprocate on the outer wall of the reciprocating screw rod 708, when the conical block 704 moves upwards, the feed opening of the storage barrel 2 is opened, so that raw materials enter the crushing box 1 through the feed opening, when the conical block 704 resets, the raw materials are blocked through the feed opening, and the raw materials enter the crushing box 1 intermittently through the cooperation of the above multiple groups of parts, avoiding the raw material from accumulating inside the crushing tank 1.
Please refer to fig. 2, 3 and 5, the bottom ends of the first rotating rod 301 and the crushing rod 304 are respectively sleeved with a first bearing sleeve, the first rotating rod 301 and the crushing rod 304 are rotatably connected with the crushing box 1 through an outer wall first bearing sleeve, and the outer wall of the crushing rod 304 is fixedly connected with a plurality of groups of crushing knives inside the crushing box 1.
In this embodiment: the friction force between the first bearing sleeve fixedly connected with the outer wall of the first rotating rod 301 and the first bearing sleeve fixedly connected with the bottom end of the crushing rod 304 is reduced.
Please refer to fig. 5, the first pulley 305 has two sets, the other set of the first pulley 305 is sleeved on the outer wall of the crushing rod 304, the first belt is installed on the outer wall of the first pulley 305, and the two sets of the first pulley 305 are rotatably connected through the first belt.
In this embodiment: it is rotatory to be convenient for first rotation pole 301 rotation to drive the first belt pulley 305 of outer wall, and the first belt of the first belt pulley 305 rotation drive outer wall drives the first belt pulley 305 rotation of crushing pole 304 outer wall to it rotates to drive crushing pole 304.
Please refer to fig. 2-3, two sets of second pulleys 702 are provided, the other set of second pulleys 702 is sleeved on the outer wall of the second rotating rod 701, a second belt is installed on the outer wall of the second pulleys 702, the two sets of second pulleys 702 are rotatably connected through the second belt, one end of the second rotating rod 701 and the outer wall of the third rotating rod 703 are respectively sleeved with a second bearing sleeve, the second rotating rod 701 is rotatably connected with the pulverizing box 1 through the second bearing sleeve at one end, and the third rotating rod 703 is rotatably connected with the connecting shell 705 through the second bearing sleeve at the outer wall.
In this embodiment: it is rotatory to be convenient for motor 4 drive connecting axle 5 to rotate and drive second belt pulley 702 simultaneously, it is rotatory to drive second dwang 701 outer wall second belt pulley 702 through the second belt, thereby it is rotatory to drive third bevel pinion 707 through third dwang 703, third bevel pinion 707 rotary drive second bevel pinion 706 drives reciprocal lead screw 708 through the connecting rod and rotates, reduce and smash the frictional force between the case 1 through second dwang 701 one end second bearing housing, through third dwang 703 outer wall second bearing housing, reduce and be connected the frictional force between the shell 705.
Please refer to fig. 4, a bottom end of the reciprocating screw 708 is fixedly connected with a connecting rod, the connecting rod penetrates through the inside of the connecting shell 705 and is fixedly connected with a second bevel pinion 706, a bottom end of the second bevel pinion 706 is fixedly connected with a rotating shaft, the second bevel pinion 706 is rotatably connected with the connecting shell 705 through the rotating shaft at the bottom end, an outer wall of the thread bushing 709 is fixedly connected with a limiting block, and the thread bushing 709 is slidably connected with an inner wall of the connecting shell 705 through the limiting block fixedly connected with the outer wall.
In this embodiment: the second small bevel gear 706 drives the connecting rod to drive the reciprocating screw rod 708 to rotate, so that the threaded sleeve 709 is driven to drive the conical block 704 to reciprocate on the outer wall of the reciprocating screw rod 708, the threaded sleeve 709 can only move up and down and cannot rotate due to the fact that the limiting block is fixedly connected with the outer wall of the threaded sleeve 709, and the threaded sleeve 709 can be prevented from being deviated in the moving process.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a raw materials reducing mechanism is used in building material production which characterized in that includes:
a crushing box (1);
the storage barrel (2), the storage barrel (2) is fixedly connected to the top end of the crushing box (1);
the motor (4) is installed on the outer wall of one side of the crushing box (1), the output end of the motor (4) is provided with a connecting shaft (5), one end of the connecting shaft (5) penetrates through the inner wall of the crushing box (1) and is rotatably connected with the crushing box (1), and the outer wall of the connecting shaft (5) is sleeved with a straight gear (6);
the crushing roller (8) is rotatably connected inside the crushing box (1), and one end of the crushing roller (8) is fixedly connected with the connecting shaft (5);
the crushing mechanism (3) is distributed on the outer wall of the connecting shaft (5), penetrates into the crushing box (1) and is used for secondarily crushing the raw materials entering the crushing box (1);
the auxiliary mechanism (7) is distributed on the outer wall of the connecting shaft (5), penetrates through the inner portion of the crushing box (1) and the inner portion of the storage barrel (2), and is used for enabling raw materials to enter the inner portion of the crushing box (1) intermittently.
2. The raw material crushing device for building material production according to claim 1, wherein the crushing mechanism (3) comprises a first rotating rod (301), a first small bevel gear (302), a large bevel gear (303), a crushing rod (304) and a first belt pulley (305), the large bevel gear (303) is sleeved on the outer wall of the connecting shaft (5) and is located on one side of the straight gear (6), the first rotating rod (301) is rotatably connected on the outer wall on one side of the crushing box (1) and is located below the connecting shaft (5), the first small bevel gear (302) is fixedly connected on the top end of the first rotating rod (301) and is meshed with the large bevel gear (303) for connection, the first belt pulley (305) is sleeved on the outer wall at the bottom end of the first rotating rod (301), the crushing rod (304) is rotatably connected inside the crushing box (1), and one end of the crushing box penetrates through the bottom end of the crushing box (1).
3. The raw material crushing device for building material production according to claim 1, wherein the auxiliary mechanism (7) comprises a second rotating rod (701), a second belt pulley (702), a third rotating rod (703), a conical block (704), a connecting shell (705), a second small bevel gear (706), a third small bevel gear (707), a reciprocating screw rod (708) and a threaded sleeve (709), the second belt pulley (702) is sleeved on the outer wall of the connecting shaft (5), the second rotating rod (701) is rotatably connected to the outer wall of one side of the crushing box (1) and located above the connecting shaft (5), the connecting shell (705) is fixedly connected to the inside of the crushing box (1) and located above the crushing roller (8), the third rotating rod (703) is rotatably connected to the inside of the connecting shell (705), and one end run through extremely smash one side outer wall of case (1) with second dwang (701) fixed connection, third bevel pinion (707) fixed connection be in the one end of third dwang (703), second bevel pinion (706) rotate to be connected connect the inside of connecting shell (705), and with third bevel pinion (707) meshing is connected, reciprocal lead screw (708) rotate to be connected the top of connecting shell (705), and with second bevel pinion (706) fixed connection, thread bush (709) sliding connection be in the top of connecting shell (705), and cup joint the outer wall of reciprocal lead screw (708), toper piece (704) fixed connection be in the top of thread bush (709).
4. The raw material crushing device for building material production as claimed in claim 2, wherein the first rotating rod (301) and the bottom end of the crushing rod (304) are respectively sleeved with a first bearing sleeve, the first rotating rod (301) and the crushing rod (304) are rotatably connected with the crushing box (1) through outer wall first bearing sleeves, and the outer wall of the crushing rod (304) is located inside the crushing box (1) and fixedly connected with a plurality of groups of crushing knives.
5. The raw material crushing device for building material production according to claim 2, wherein the first belt pulleys (305) are provided in two groups, the other group of the first belt pulleys (305) is sleeved on the outer wall of the crushing rod (304), a first belt is installed on the outer wall of the first belt pulleys (305), and the two groups of the first belt pulleys (305) are rotationally connected through the first belt.
6. The raw material crushing device for building material production according to claim 3, wherein the second belt pulley (702) is provided with two sets, and the second belt pulley (702) is sleeved on the outer wall of the second rotating lever (701), the outer wall of the second belt pulley (702) is provided with a second belt, and the second belt pulley (702) is connected in a rotating manner through the second belt, the second bearing sleeve is sleeved on one end of the second rotating lever (701) and the outer wall of the third rotating lever (703) respectively, the second rotating lever (701) is connected in a rotating manner through the second bearing sleeve at one end of the second belt pulley, and the third rotating lever (703) is connected in a rotating manner through the second bearing sleeve at the outer wall of the connecting shell (705).
7. The raw material crushing device for the production of building materials according to claim 3, wherein a connecting rod is fixedly connected to the bottom end of the reciprocating screw rod (708), the connecting rod penetrates through the inside of the connecting shell (705) and is fixedly connected with the second bevel pinion (706), a rotating shaft is fixedly connected to the bottom end of the second bevel pinion (706), the second bevel pinion (706) is rotatably connected with the connecting shell (705) through the rotating shaft at the bottom end, a limiting block is fixedly connected to the outer wall of the thread sleeve (709), and the thread sleeve (709) is slidably connected with the inner wall of the connecting shell (705) through the limiting block fixedly connected to the outer wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123377147.7U CN216704629U (en) | 2021-12-30 | 2021-12-30 | Raw materials reducing mechanism is used in building material production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123377147.7U CN216704629U (en) | 2021-12-30 | 2021-12-30 | Raw materials reducing mechanism is used in building material production |
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| CN216704629U true CN216704629U (en) | 2022-06-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115634738A (en) * | 2022-09-09 | 2023-01-24 | 连云港永科硅微粉有限公司 | Battery packaging silicon micropowder grinding equipment and grinding method |
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2021
- 2021-12-30 CN CN202123377147.7U patent/CN216704629U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115634738A (en) * | 2022-09-09 | 2023-01-24 | 连云港永科硅微粉有限公司 | Battery packaging silicon micropowder grinding equipment and grinding method |
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