CN109675696B

CN109675696B - Multistage reducing mechanism of material

Info

Publication number: CN109675696B
Application number: CN201811593053.3A
Authority: CN
Inventors: 项文增
Original assignee: Xiangshan Qiugonglian Information Technology Co ltd
Current assignee: Ningbo Longrui Machinery Manufacture Co ltd
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2020-09-29
Anticipated expiration: 2038-12-25
Also published as: CN109675696A

Abstract

The invention relates to the technical field of silicon material processing, in particular to a multistage material crushing device which comprises an outer barrel, wherein an inner barrel is rotationally arranged in the outer barrel, a fine material crushing cavity is formed between the outer barrel and the inner barrel, a fine material crushing mechanism is arranged in the fine material crushing cavity, a coarse material crushing mechanism capable of driving the inner barrel to rotate is arranged in the inner barrel, a plurality of sieve holes are formed in the inner wall of the inner barrel, a differential mechanism used for driving the fine material crushing mechanism and the coarse material crushing mechanism to rotate is arranged at the bottom of the outer barrel, and the rotating speed of the coarse material crushing mechanism is less than that of the fine. The invention solves the problem that the silicon materials with different grain diameters can not be prepared simultaneously in the prior art.

Description

Multistage reducing mechanism of material

Technical Field

The invention relates to the technical field of silicon material processing, in particular to a multistage crushing device for materials.

Background

The silicon material is a silicon product with wide application in industrial production, mainly comprises ferrosilicon, metallic silicon, silicomanganese, silicon-aluminum and the like, and the silicon material is generally required to be crushed in the application process.

The silicon material is widely applied to different industrial occasions, the silicon materials with different particle sizes are needed in different application occasions, in the prior art, the silicon materials with different particle sizes are respectively prepared by adopting crushing devices with different crushing grades, or the silicon materials with different particle sizes are prepared by changing the crushing degree by adopting the same crushing device; the crushing modes can not prepare silicon materials with different particle sizes at the same time, and the production efficiency is not high.

Disclosure of Invention

The invention aims to provide a multistage material crushing device to solve the problem that silicon materials with different particle sizes cannot be prepared simultaneously in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a multistage reducing mechanism of material, includes the urceolus, the urceolus internal rotation is provided with the inner tube, form the fine material between urceolus and the inner tube and smash the chamber, the fine material is smashed the intracavity and is provided with fine material rubbing crusher and constructs, be provided with in the inner tube and drive inner tube pivoted coarse material rubbing crusher and construct, be provided with a plurality of sieve meshes on the inner tube inner wall, the urceolus bottom is provided with and is used for driving fine material rubbing crusher and coarse material rubbing crusher and construct pivoted differential mechanism, coarse material rubbing crusher's rotational speed is less than.

The principle of the scheme is as follows:

the inner cylinder is used for containing materials, the coarse material crushing mechanism is used for primarily crushing the materials, and the coarse material crushing mechanism can also drive the inner cylinder to rotate when in operation, so that the materials with smaller particle size in the inner cylinder are thrown out of the sieve pores to the fine material crushing cavity; the differential mechanism is used for simultaneously driving the fine material crushing mechanism and the coarse material crushing mechanism to rotate, and the rotating speed of the coarse material crushing mechanism is smaller than that of the fine material crushing mechanism; when the rotating speed is high, the crushing force applied to the materials is large, so that the particles of the materials crushed in the same time are small, the materials are respectively placed in the coarse material crushing cavity and the inner cylinder and crushed by using different rotating speeds, and coarse materials and fine materials are simultaneously prepared.

The beneficial effect of this scheme does:

1. utilize differential mechanism simultaneous drive fine material rubbing crusher to construct and rotate with coarse fodder rubbing crusher to make the material in the inner tube and the material in the fine material crushing chamber receive the crushing of different degree in the same time, prepare out fine material and coarse fodder from this simultaneously, compare and adopt different reducing mechanism or prepare through the mode of adjusting crushing degree among the prior art respectively, the preparation efficiency of this scheme is higher.

2. The material is placed in the inner cylinder, is primarily crushed by the coarse material crushing mechanism and is then respectively placed in the inner cylinder and the fine material crushing cavity for crushing, and the crushing effect is better.

3. The automatic screening of the material after preliminary crushing to the cavity is smashed to the thin material, need not manual operation, also need not to close and carry out the screening operation behind the reducing mechanism, has improved comminuted efficiency.

4. The coarse fodder rubbing crusher of this scheme not only is as the preliminary kibbling mechanism of material, the kibbling mechanism of coarse fodder, can also regard as the drive inner tube to rotate the mechanism that realizes the material screening, and a mechanism realizes multiple functions, and efficiency is higher, and the cost is lower.

Further, coarse fodder rubbing crusher constructs including the knife rest that slides and set up in the inner tube top, and the knife rest bottom is vertical to be provided with a plurality of coarse fodder and smashes the sword, and the vertical thread bush that is provided with in the inner tube, knife rest bottom are provided with first lead screw, first lead screw and thread bush threaded connection. The tool rest is used for mounting a coarse material crushing cutter, the threaded sleeve is used for being connected with a first lead screw, and the coarse material crushing cutter is driven to reciprocate in the vertical direction so as to realize the primary crushing of the material; when the tool rest moves in a reciprocating manner, the first lead screw moves up and down in the threaded sleeve, so that the inner cylinder is driven to rotate, the material is rotated, and the crushing effect is improved; meanwhile, the materials are thrown out of the sieve holes into the fine material crushing cavity, and the materials are sieved.

Further, a driving mechanism for driving the tool rest to move is arranged above the inner cylinder. The driving mechanism is used for driving the tool rest to reciprocate in the vertical direction, and compared with manual driving, the efficiency is higher.

Further, the driving mechanism comprises a rack which is arranged in a transverse sliding mode, a driving bevel gear is meshed below the rack, a driven bevel gear is meshed below the driving bevel gear, a second lead screw is in threaded connection with the driven bevel gear, and the second lead screw is connected with the tool rest. The rack is used for driving the driving bevel gear to rotate positively and negatively, the driving bevel gear is used for driving the driven bevel gear to rotate positively and negatively, the driven bevel gear is in threaded connection with the second screw rod, and the tool rest is vertically arranged in a sliding mode, so that the driven bevel gear can drive the tool rest to slide in a reciprocating mode in the vertical direction through the second screw rod when rotating, the coarse material crushing tool is driven to reciprocate in the vertical direction, and preliminary crushing of materials is achieved.

Furthermore, the fine material crushing mechanism comprises a vertically arranged crushing shaft, and a plurality of fine material crushing knives are arranged on the crushing shaft. The fine material crushing shaft is used for installing the fine material crushing cutter and driving the fine material crushing cutter to rotate, so that the materials in the fine material crushing cavity are crushed.

Furthermore, a rotary table is arranged in the inner barrel in a rotating mode, a plurality of spline sleeves are arranged on the rotary table, spline teeth which can be connected with the spline sleeves are arranged at the bottom end of the coarse material crushing cutter, the differential mechanism comprises a gear set, a large gear in the gear set is connected with the rotary table, and a small gear in the gear set is connected with the crushing shaft. The spline teeth are connected with the spline sleeve, so that the coarse material crushing cutter is connected with the rotary table, and the large gear is used for driving the rotary table to rotate, so that the coarse material crushing cutter is driven to rotate, and the crushing of the material in the inner barrel is realized; the pinion is used for driving the crushing shaft to rotate so as to drive the fine material crushing knife to rotate, and crushing of the material in the fine material crushing cavity is realized; the rotating speed of the small gear is greater than that of the large gear, so that the material in the fine material crushing cavity is subjected to a larger crushing force in the same time, and the material with a smaller particle size can be prepared; the rotation speed difference between the large gear and the small gear is utilized to provide different crushing forces, so that materials with different particle sizes are prepared.

Further, the bottom of the tool rest is connected with a protective cylinder, and the diameter of the protective cylinder is smaller than the inner diameter of the inner cylinder. The protective cylinder is used for shielding sieve holes in the inner wall of the inner cylinder when the knife rest moves downwards, and materials in the protective cylinder are prevented from being thrown out when the inner cylinder rotates, so that the materials can be sufficiently crushed in the inner cylinder.

Furthermore, a plurality of auxiliary blades are transversely arranged on the coarse material crushing knife and are uniformly arranged. The auxiliary blade can provide a transverse shearing force for the materials, and the crushing effect of the materials is further improved.

Drawings

FIG. 1 is a longitudinal cross-sectional view of an embodiment of the present invention; wherein the coarse material crushing cutter and the spline housing are not connected;

fig. 2 is a longitudinal sectional view of the coarse crushing cutter and the spline housing when they are coupled according to the embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the grinding device comprises an outer cylinder 1, a sieve pore 11, a bulge 12, a knife rest 13, an auxiliary blade 14, a coarse material grinding knife 15, a driven bevel gear 16, a second screw rod 17, a first screw rod 18, a driving bevel gear 19, a rack 20, a threaded sleeve 21, a protective cylinder 22, an inner cylinder 23, a fine material grinding cavity 24, a pinion 25, a large gear 28, spline teeth 29, a rotating shaft 30, a spline sleeve 31, a rotary table 32, a grinding shaft 35 and a fine material grinding knife 36.

As shown in figure 1, the multistage material crushing device comprises a frame, wherein an outer cylinder 1 is arranged on the frame, the top of the outer cylinder 1 is open, an inner cylinder 23 with an open top is rotatably arranged in the outer cylinder 1, a fine material crushing cavity 24 is formed between the outer cylinder 1 and the inner cylinder 23, a plurality of crushing shafts 35 are vertically arranged in the fine material crushing cavity 24, and a plurality of fine material crushing cutters 36 are transversely welded on each crushing shaft 35.

Install coarse fodder rubbing crusher in inner tube 23, coarse fodder rubbing crusher constructs including setting up the knife rest 13 in the disc of inner tube 23 top, and the vertical sliding connection of knife rest 13 is in the frame, and specific connected mode is: two elastic bulges 12 are glued on the edge of the knife rest 13, the two bulges 12 are symmetrically arranged with the circle center of the knife rest 13, two sliding grooves are vertically arranged on the frame, and the two bulges 12 are respectively connected in the two sliding grooves in a sliding manner. A plurality of coarse material crushing knives 15 are vertically welded at the bottom of the knife rest 13, a plurality of auxiliary blades 14 are transversely welded on each coarse material crushing knife 15, and the auxiliary blades 14 are uniformly arranged. The bottom of the tool rest 13 is vertically welded with a first lead screw 18, a threaded sleeve 21 is vertically welded in the inner cylinder 23, the threaded sleeve 21 is arranged at the center of the inner cylinder 23, and the first lead screw 18 is in threaded connection with the threaded sleeve 21. A plurality of sieve holes 11 are formed in the side wall of the inner cylinder 23, a protective cylinder 22 is vertically welded at the bottom of the knife rest 13, the protective cylinder 22 is used for sealing the sieve holes 11, and the diameter of the protective cylinder 22 is smaller than the inner diameter of the inner cylinder 23.

And a driving mechanism for driving the tool rest 13 to move is arranged above the inner cylinder 23, the driving mechanism comprises a rack 20 which is transversely installed in a sliding manner, the rack 20 is connected with an air cylinder, and the air cylinder is installed on the rack. A driving bevel gear 19 is meshed below the rack 20, a driven bevel gear 16 is meshed with the driving bevel gear 19, and the driven bevel gear 16 is rotatably mounted on the rack. The driven bevel gear 16 is connected with a second lead screw 17, and the second lead screw 17 is connected at the center of the top surface of the tool rest 13.

The bottom of the inner cylinder 23 is rotatably provided with a turntable 32, and the threaded sleeve 21 is rotatably connected with the turntable 32. A plurality of spline sleeves 31 are vertically welded on the upper surface of the rotary table 32, and spline teeth 29 which can be connected with the spline sleeves 31 are formed at the bottom ends of the coarse material crushing cutters 15. The bottom of the outer cylinder 1 is provided with a gear set, a big gear 28 in the gear set is connected with a turntable 32 through a rotating shaft 30, a small gear 25 in the gear set is connected with a crushing shaft 35, a motor is arranged on the rack, and an output shaft of the motor is connected with the big gear 28.

When the crushing device provided by the invention is used for crushing silicon materials, the silicon materials are placed in the inner cylinder 23, initially, the coarse material crushing cutter 15 is not connected with the spline sleeve 31 on the rotary table 32, the cutter frame 13 is connected on the rack in a sliding manner, and the second lead screw 17 on the cutter frame 13 is in threaded connection with the driven bevel gear 16. The starting cylinder drives the rack 20 to reciprocate in the horizontal direction, the rack 20 drives the driving bevel gear 19 meshed with the rack to rotate forwards and backwards, and the driving bevel gear 19 drives the driven bevel gear 16 meshed with the rack to rotate forwards and backwards. Because the driven bevel gear 16 is rotationally connected on the machine frame and cannot move vertically, the tool rest 13 is vertically and slidably connected on the machine frame, and the second lead screw 17 is in threaded connection with the driven bevel gear 16. Therefore, when the driven bevel gear 16 rotates, the second lead screw 17 can drive the tool rest 13 to reciprocate in the vertical direction, so that the coarse material crushing knife 15 on the tool rest 13 is driven to reciprocate in the vertical direction, and therefore, the silicon material in the inner cylinder 23 is primarily crushed, and the coarse material crushing knife 15 does not always insert into the spline housing 31 in the reciprocating motion process.

When the tool rest 13 moves downwards, the first lead screw 18 on the tool rest 13 is inserted into the threaded sleeve 21, but the coarse material crushing cutter 15 is not connected with the splined sleeve 31 at the moment, and because the inner cylinder 23 is rotationally connected in the outer cylinder 1, the inner cylinder 23 can rotate positively under the action of the first lead screw 18 and the threaded sleeve 21, so that silicon materials in the inner cylinder 23 rotate, and compared with the situation that the silicon materials are crushed in a standing state, the crushing effect is better. Because the threaded sleeve 21 is rotatably connected with the rotary table 32, and the rotary table 32 is rotatably connected with the inner cylinder 23, the rotary table 32 cannot rotate when the inner cylinder 23 rotates, and the gear set cannot be influenced. In addition, when the tool rest 13 moves downwards, the protective cylinder 22 on the tool rest 13 can be driven to move downwards, the protective cylinder 22 is inserted into the inner cylinder 23 to block the sieve holes 11 on the inner cylinder 23, and therefore silicon materials in the inner cylinder 23 can be prevented from being thrown out of the sieve holes 11 when the inner cylinder 23 rotates forwards.

When the tool rest 13 moves upwards, the protective cylinder 22 is pulled out of the inner cylinder 23, the sieve holes 11 on the inner cylinder 23 are exposed, the first lead screw 18 is pulled out of the threaded sleeve 21, and the inner cylinder 23 rotates reversely under the action of the first lead screw 18 and the threaded sleeve 21, so that the silicon material in the inner cylinder 23 rotates again. The silicon material with smaller particle size in the inner cylinder 23 is thrown out to the outer cylinder 1 from the sieve holes 11 by centrifugal force, and the silicon material with larger particle size is retained in the inner cylinder 23, thereby realizing the sieving of the silicon material. In addition, the knife rest 13 can drive the coarse material crushing knife 15 to move upwards when moving upwards, and the coarse material crushing knife 15 cannot be left in the inner cylinder 23, so that silicon materials cannot be subjected to resistance of the coarse material crushing knife 15 when being thrown out, and the screening effect of the silicon materials cannot be influenced.

After the silicon material is screened, the rack 20 is driven by the air cylinder to move rightwards, so that the tool rest 13 is driven to move downwards again through the driven bevel gear 16 and the second lead screw 17. And controlling the moving distance of the rack 20 to be larger than the moving distance of the rack 20 during the silicon material screening until the second lead screw 17 on the tool rest 13 is disconnected with the driven bevel gear 16, and the bulge 12 on the tool rest 13 falls off from the sliding groove on the tool rest and then the cylinder is closed. Because the protrusion 12 has elasticity, the protrusion 12 can be deformed under the extrusion force of the tool holder 13 to fall off from the chute. Meanwhile, as shown in fig. 2, the coarse crushing cutter 15 on the cutter holder 13 is inserted into the spline housing 31 on the rotary disk 32, and the first lead screw 18 is also inserted into the threaded housing 21; at this time, the protective cylinder 22 is also inserted into the inner cylinder 23 again to block the screen holes 11 on the inner cylinder 23.

After the coarse material crushing cutter 15 is connected with the spline housing 31, the motor is started to drive the large gear 28 to rotate forwards and backwards, and the large gear 28 drives the turntable 32 to rotate forwards and backwards through the rotating shaft 30. At this time, the coarse material crushing cutter 15 is connected with the rotary table 32 through the spline housing 31, so that the coarse material crushing cutter 15 rotates forwards and backwards under the driving of the rotary table 32, the silicon material in the inner cylinder 23 is crushed for the second time, and the crushing effect is better.

The coarse material crushing cutter 15 can drive the cutter frame 13 to rotate in the forward direction when rotating in the forward direction, and it needs to be noted that in actual operation, the cutter frame 13 is required to be ensured not to abut against the inner cylinder 23, that is, the cutter frame 13 is ensured to have enough space to rotate. The tool rest 13 drives the first lead screw 18 to rotate in the threaded sleeve 21, and the first lead screw 18 can drive the tool rest 13 to move upwards when rotating because the threaded sleeve 21 is welded on the inner cylinder 23 and cannot move. The tool rest 13 drives the coarse material crushing cutter 15 to move upwards, and the coarse material crushing cutter 15 is connected in the spline housing 31 in a spline mode, so that the movement in the vertical direction cannot be influenced. The auxiliary blade 14 on the coarse material crushing knife 15 pushes the silicon material in the inner cylinder 23 upwards, so that the silicon material is prevented from being accumulated at the bottom of the inner cylinder 23, and the silicon material is crushed more uniformly. In a similar way, the bull gear 28 can drive the first lead screw 18 reverse rotation during reverse rotation to make the coarse fodder smash sword 15 and move down, so relapse, can make the silicon material in the inner tube 23 receive the ascending shearing force of vertical side, make silicon material smash the effect better, can also make silicon material roll from top to bottom in the inner tube 23 simultaneously, further improved the crushing effect of silicon material.

The number of turns of the tool rest 13 is controlled by controlling the number of turns of the large gear 28, so that the number of turns of the first lead screw 18 is controlled, and further the length of the first lead screw 18 pulled out of the threaded sleeve 21 is controlled, so that the distance of upward movement of the tool rest 13 is smaller than the length of the spline sleeve 31, and the coarse material crushing knife 15 cannot be separated from the spline sleeve 31 when the tool rest 13 moves upward.

When the large gear 28 rotates, the small gear 25 engaged with the large gear can be driven to rotate, the small gear 25 drives the crushing shaft 35 to rotate, and therefore the fine material crushing knife 36 on the crushing shaft 35 is driven to rotate, and therefore silicon materials in the outer barrel 1 are crushed. The rotation speed of the small gear 25 is higher than that of the large gear 28, so that the crushing force applied to the silicon material in the fine crushing cavity 24 is higher than that applied to the silicon material in the inner cylinder 23 in the same time, so as to meet different crushing requirements of the fine material and the coarse material.

According to the invention, the rotation speed difference between the large gear 28 and the small gear 25 is utilized, the small gear 25 is utilized to drive the crushing shaft 35 to rotate rapidly, and the shearing force borne by fine materials is increased, so that coarse materials and fine materials are prepared simultaneously; compared with the prior art that different devices are respectively adopted to prepare coarse materials and fine materials, or the crushing degree of the devices is changed to prepare the coarse materials and the fine materials in sequence, the preparation efficiency of the invention is higher.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a multistage reducing mechanism of material which characterized in that: the crushing device comprises an outer barrel, wherein an inner barrel is rotationally arranged in the outer barrel, a fine material crushing cavity is formed between the outer barrel and the inner barrel, a fine material crushing mechanism is arranged in the fine material crushing cavity, a coarse material crushing mechanism capable of driving the inner barrel to rotate is arranged in the inner barrel, a plurality of sieve pores are arranged on the inner wall of the inner barrel, a differential mechanism used for driving the fine material crushing mechanism and the coarse material crushing mechanism to rotate is arranged at the bottom of the outer barrel, and the rotating speed of the coarse material crushing mechanism is less than that of the; the coarse material crushing mechanism comprises a tool rest which is arranged above the inner barrel in a sliding mode, a plurality of coarse material crushing tools are vertically arranged at the bottom of the tool rest, a threaded sleeve is vertically arranged in the inner barrel, a first lead screw is arranged at the bottom of the tool rest and is in threaded connection with the threaded sleeve; the fine material crushing mechanism comprises a vertically arranged crushing shaft, and a plurality of fine material crushing knives are arranged on the crushing shaft; the inner tube internal rotation is provided with the carousel, is provided with a plurality of spline housings on the carousel, and coarse fodder crushing sword bottom is provided with the spline tooth that can be connected with the spline housing, differential mechanism includes the gear train, gear wheel in the gear train with the carousel is connected, pinion in the gear train with crushing hub connection.

2. A multi-stage comminution plant as claimed in claim 1 in which: and a driving mechanism for driving the tool rest to move is arranged above the inner cylinder.

3. A multi-stage comminution plant as claimed in claim 2 in which: the driving mechanism comprises a rack which is arranged in a transverse sliding mode, a driving bevel gear is meshed below the rack, a driven bevel gear is meshed below the driving bevel gear, a second lead screw is in threaded connection with the driven bevel gear, and the second lead screw is connected with the tool rest.

4. A multi-stage comminution plant as claimed in claim 3 in which: the bottom of the knife rest is connected with a protective cylinder, and the diameter of the protective cylinder is smaller than the inner diameter of the inner cylinder.

5. A multi-stage comminution plant for material as in claim 4 in which: a plurality of auxiliary blades are transversely arranged on the coarse material crushing knife and are uniformly arranged.