CN110252456B - A fine crusher with a large crushing ratio and multiple functional tooth shapes - Google Patents
A fine crusher with a large crushing ratio and multiple functional tooth shapes Download PDFInfo
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- CN110252456B CN110252456B CN201910367754.3A CN201910367754A CN110252456B CN 110252456 B CN110252456 B CN 110252456B CN 201910367754 A CN201910367754 A CN 201910367754A CN 110252456 B CN110252456 B CN 110252456B
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- 239000000463 material Substances 0.000 claims description 26
- 238000007599 discharging Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000011343 solid material Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 1
- 238000010008 shearing Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000002221 olecranon process Anatomy 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/286—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Crushing And Grinding (AREA)
Abstract
A large crushing ratio fine crusher integrating multiple functional tooth shapes comprises a machine body and two crushing rollers, wherein each crushing roller consists of a main shaft (8), roller tooth discs (3) and connecting bolts (7), the two main shafts (8) are provided with the roller tooth discs (3) with the same number, the roller tooth discs (3) on the two main shafts are arranged in a staggered mode, and the large crushing ratio fine crusher is characterized in that a plurality of groups of crushing teeth are uniformly and alternately distributed on the outer cylindrical surface of each roller tooth disc (3), each group of crushing teeth comprises primary crushing teeth (4), cutting crushing teeth (5) and trapezoid teeth (6) which are sequentially distributed, the crushing teeth on all the roller tooth discs (3) on each main shaft are in the same phase arrangement, the primary crushing teeth (4) are in a hawk-mouth shape, the tail ends of the cutting crushing teeth (5) are provided with blades with top angles of 55-65 degrees, and the included angles between the long sides of the trapezoid teeth (6) and the tangent lines of the cylindrical surfaces of the roller tooth discs are 45-55 degrees. The invention has compact structure, reliable operation, high production capacity per unit volume and convenient maintenance.
Description
Technical Field
The invention belongs to the field of mechanical crushing, and relates to a crushing device, in particular to a large-crushing-ratio fine crusher integrating multiple functional tooth shapes.
Background
The full utilization of renewable resources is an important measure for realizing circular economy in China, and a large amount of renewable resources which can be recycled are contained in waste electromechanical products. In general, the detachable part can be recycled through remanufacturing or directly used as a raw material, and the part difficult to disassemble can be finely separated only by uniformly crushing the part to a smaller size, namely crushing the part, so that the renewable resources of different materials can be recycled efficiently.
The roller crusher has the advantages of simple structure, reliable operation, good comprehensive crushing performance and the like, and has become one of the main choices of waste electromechanical product crushing equipment. Currently, the main working part of roller crushers on the market is a toothed roller with a certain specific tooth shape, crushing is realized through interaction between teeth with a specific shape or between teeth and side plates, the obtained crushing product is influenced by the tooth shape and the distance between two roller shafts, the crushing ratio is generally smaller, and if a large crushing ratio from a large size to a small size is required to be realized, a multi-stage crushing device is often required to be added. U.S. Pat. No. 10,065,191 B2 discloses a twin roll crusher capable of realizing a large crushing ratio, which adopts a structure of a grinding hammer matched with additional crushing teeth on a crushing roll, and can perform the functions of preliminary crushing and fine crushing. However, due to the limitation of the self structure of the double-roller crusher, materials only pass through the crushing roller once, and the crushing effect is not ideal for difficult-to-disassemble parts of different materials, especially waste electromechanical products, which are mixed with various materials.
To the best of the applicant's knowledge, no large-crushing-ratio fine crusher capable of meeting the crushing requirement of the difficult-to-disassemble part of the waste electromechanical product is available at present, so that a large amount of precious renewable resources in the waste electromechanical product are difficult to recycle.
Disclosure of Invention
The invention aims at solving the problem that a large-crushing-ratio fine crusher capable of meeting the crushing requirement of a part of a waste electromechanical product which is difficult to disassemble is not available at present, and provides a large-crushing-ratio fine crusher integrating multiple functional tooth shapes.
The technical scheme of the invention is as follows:
A large crushing ratio fine crusher integrating multiple functional tooth shapes comprises a crusher body and two crushing rollers, wherein the crusher body is composed of a feeding hole 2, an upper box body 1, a screen plate 9, a lower box body 10 and a discharging hole 11, the crushing rollers are composed of a main shaft 8, roller tooth plates 3 and connecting bolts 7, the two main shafts 8 are provided with the same number of the roller tooth plates 3, the roller tooth plates 3 on each main shaft 8 are connected into a whole through the connecting bolts 7, the roller tooth plates 3 on the two main shafts are arranged in a staggered mode, and the large crushing ratio fine crusher is characterized in that a plurality of groups of crushing teeth are uniformly distributed on the outer cylindrical surface of each roller tooth plate 3 at intervals, each group of crushing teeth comprises primary crushing teeth 4, cutting crushing teeth 5 and trapezoidal teeth 6 which are distributed in sequence, the crushing teeth on all the roller tooth plates 3 on each main shaft are arranged, the primary crushing teeth 4 are in a olecranon-form, the tail end of each cutting crushing tooth 5 is provided with a blade with a top angle of 55-65 degrees (optimally 60 degrees), and the included angle between the long side of each trapezoidal tooth 6 and the tangent line of the cylindrical surface of the roller tooth plate is 45-55 degrees, optimally 50 degrees.
The teeth on the two crushing rollers are staggered in the axial direction, the side with higher tooth shape faces the two-roller meshing area, and the tooth shapes of the two rows of the meshed crushing teeth in the two-roller meshing area are the same.
The feeding port 2 of the machine body part is arranged on the upper side of the upper box body 1 and is connected with the upper box body through bolts, the upper box body 1 and the lower box body 10 are connected through bolts and form holes for installing crushing rollers, and the discharging port is arranged on the lower side of the lower box body 10 and is connected with the lower box body through bolts.
The axis of the main shaft 8 of the crushing roller is coincident with the axis of a hole formed by the matching of the upper box body and the lower box body, and five roller fluted discs 3 with the same relative positions are connected into a whole by connecting bolts 7 and are installed on the main shaft 8, so that the same axial tooth shape is ensured to be the same.
The screen plate 9 is fixed on the inner wall of the lower box body 10, is parallel to the main shaft, has the length and the width equal to those of the inner wall of the lower box body 10 respectively, and the distance between the two circular arc surfaces on the upper side and the cylindrical surfaces of the two crushing rollers is slightly larger than the maximum tooth height.
The two arc surfaces on the upper side of the sieve plate 9 are respectively coaxial with the outer cylindrical surface of the corresponding crushing roller, and holes with the same size as the required crushing size are sequentially formed in the arc surfaces.
Five roller tooth discs 3 are mounted on each spindle 8.
Four groups of crushing teeth which are formed by primary crushing teeth 4, cutting crushing teeth 5 and trapezoid teeth 6 which are distributed in sequence are arranged on each roller fluted disc 3.
The invention has the beneficial effects that:
(1) The invention integrates the large crushing ratio fine crusher with multiple functional tooth shapes, synthesizes three tooth shapes with different functions on the crushing roller, completes primary crushing through the primary crushing tooth with the olecranon-like shape, cuts through the cutting crushing tooth with the cutting function, and then realizes fine crushing through the trapezoid tooth, thereby not only realizing the large crushing ratio crushing, but also having good crushing effect on the difficult-to-disassemble parts mixed with different materials, especially waste electromechanical products.
(2) The invention integrates the large crushing ratio fine crusher with multiple functional tooth shapes, and by setting the aperture and the shape of the sieve plate, the crushed materials which are not more than the aperture and have the shape capable of passing through the aperture are only fallen down, and the rest materials are lifted and crushed by the crushing tooth belt until the grain diameter and the shape reach the crushing requirement.
(3) The invention integrates the large crushing ratio fine crusher with multiple functional tooth shapes, can replace sieve plates with different apertures and shapes according to requirements, ensures the adaptability to products and the crushing efficiency, and has the advantages of compact structure, reliable work, high production capacity per unit volume and convenient maintenance.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic view of the primary breaker tooth engaged.
Fig. 3 is a schematic view of trapezoidal teeth engaged.
In the figure, the device comprises a 1-upper box body, a 2-feed inlet, a 3-roller fluted disc, 4-primary crushing teeth, 5-cutting crushing teeth, 6-trapezoid teeth, 7-connecting bolts, 8-main shafts, 9-sieve plates, 10-lower box bodies and 11-discharge outlets.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1-3.
A large crushing ratio fine crusher integrating multiple functional tooth shapes comprises a machine body and two crushing rollers, wherein the machine body comprises a feeding hole 2, an upper box body 1, a screen plate 9, a lower box body 10 and a discharging hole 11, the crushing rollers comprise a main shaft 8, a roller fluted disc 3 and a connecting bolt 7, four groups of crushing teeth are uniformly distributed on the outer cylindrical surface of the roller fluted disc 3, each group of crushing teeth comprises primary crushing teeth 4, cutting crushing teeth 5 and trapezoid teeth 6 which are sequentially distributed, the primary crushing teeth 4 are in a olecranon shape, the tail end of each cutting crushing tooth 5 is a blade with a vertex angle of 55-65 degrees (optimally 60 degrees), and an included angle between the long edge 12 of each trapezoid tooth 6 and a tangent line of the cylindrical surface of the roller fluted disc is 45-55 degrees (optimally 50 degrees). Teeth on the two crushing rollers are staggered in the axial direction, one side with higher tooth shape faces to the two-roller meshing area, and the tooth shapes of the two rows of the crushing teeth meshed in the two-roller meshing area are identical. The feeding port 2 of the machine body part is arranged on the upper side of the upper box body 1 and is connected with the upper box body through bolts, the upper box body 1 and the lower box body 10 are connected through bolts and form holes for installing crushing rollers, and the discharging port is arranged on the lower side of the lower box body 10 and is connected with the lower box body through bolts. The axis of the main shaft 8 of the crushing roller is coincident with the axis of a hole formed by the matching of the upper box body and the lower box body, and five roller fluted discs 3 with the same relative positions are connected into a whole by connecting bolts 7 and are installed on the main shaft 8, so that the same axial tooth shape is ensured to be the same. The screen plate 9 is fixed on the inner wall of the lower box body 10, is parallel to the main shaft, and has the length and the width equal to those of the inner wall of the lower box body 10 respectively, and the distance between the two arc surfaces on the upper side and the cylindrical surfaces of the two crushing rollers is slightly larger than the maximum tooth height. The two arc surfaces on the upper side of the sieve plate 9 are respectively coaxial with the outer cylindrical surface of the corresponding crushing roller, and holes consistent with the required crushing size are sequentially formed in the arc surfaces.
When the crusher is used for crushing large-size solid materials, the two crushing rollers rotate in opposite directions at the same rotating speed, the materials enter the upper part of the meshing area of the two crushing rollers through the feed inlet 2, are firstly fixed by the primary crushing teeth 4 on two sides and driven to pass through the meshing area to finish primary crushing, the meshing area is formed by meshing the primary crushing teeth, and the space between the teeth is the largest (figure 2), so that the primary crushing of the large-size materials is mainly performed to smaller size. The material after primary crushing falls onto the screen plate 9, a small part of the material meets the size requirement, passes through the screen holes, the rest of the material is brought back to the meshing area by the crushing teeth, and the material with larger size is cut and crushed by the edge at the tail end of the cutting crushing teeth 5 in the process. Finally, the material is crushed finally through the meshing area formed by the trapezoid teeth 6, the space between the teeth in the meshing area is the smallest (figure 3), most of the material is sheared, extruded and ground fully and then enters the discharge port 11 through the sieve holes to be collected and discharged, and a small number of materials which do not meet the required size can be brought into the meshing area again to be crushed until the materials reach the specified size.
The invention is not related in part to the same as or can be practiced with the prior art.
Claims (7)
1. A large crushing ratio fine crusher integrating multiple functional tooth shapes comprises a machine body and two crushing rollers, wherein the machine body consists of a feeding hole (2), an upper box body (1), a screen plate (9), a lower box body (10) and a discharging hole (11), the crushing rollers consist of a main shaft (8), roller tooth discs (3) and connecting bolts (7), the two main shafts (8) are provided with equal numbers of roller tooth discs (3), a plurality of roller tooth discs (3) on each main shaft (8) are connected into a whole through the connecting bolts (7), the roller tooth discs (3) on the two main shafts are arranged in a staggered mode, and are characterized in that a plurality of groups of crushing teeth are uniformly distributed on the outer cylindrical surface of each roller tooth disc (3) at intervals, each group of crushing teeth comprises primary crushing teeth (4), cutting crushing teeth (5) and trapezoid teeth (6) which are distributed in sequence, all the crushing teeth on each main shaft (3) are arranged, the primary crushing teeth (4) are in a mouth shape, the tail ends of the cutting crushing teeth (5) are provided with the same angle, the included angle is formed by the two trapezoid teeth (55) which are arranged in the axial direction of the length of the cylindrical tooth discs (55) which are staggered with the longitudinal direction of the two sides of the roller tooth discs (6) in the axial direction of the roll tooth faces which are arranged in the length direction of the roll tooth faces (55, when large-size solid materials are crushed, the two crushing rollers rotate oppositely at the same rotating speed, the materials enter the upper part of the two crushing roller meshing areas through a feeding hole (2), the primary crushing teeth (4) on two sides are fixed and driven to pass through the meshing areas to finish primary crushing, the meshing areas are formed by meshing the primary crushing teeth, the space between the teeth is maximum, the large-size materials are crushed to be smaller in size, the materials subjected to primary crushing fall on a sieve plate (9), the materials meeting the size requirement pass through sieve holes, the rest materials are brought back to the meshing areas by the crushing teeth, in the process, the materials with larger size can be cut and crushed by the edges at the tail ends of the cutting crushing teeth (5), finally, the materials pass through the meshing areas formed by the trapezoid teeth (6) to finish final crushing, the space between the teeth of the meshing areas is minimum, the materials meeting the size requirement are subjected to full shearing, extrusion and grinding, enter the discharging hole (11) to collect and discharge, and the materials which still do not meet the size requirement are brought into the meshing areas again to reach the specified size.
2. The high crushing ratio fine crusher with multiple functional tooth forms according to claim 1, wherein the feeding port (2) of the machine body part is arranged on the upper side of the upper box body (1) and is connected with the upper box body through bolts, the upper box body (1) and the lower box body (10) are connected through bolts and form holes for installing crushing rollers, and the discharging port is arranged on the lower side of the lower box body (10) and is connected with the lower box body through bolts.
3. The large-crushing-ratio fine crusher with multiple functional tooth shapes according to claim 1, wherein the axis of a main shaft (8) of the crushing roller is coincident with the axis of a hole formed by matching an upper box body and a lower box body, and five roller tooth discs (3) with the same relative positions are connected into a whole by a connecting bolt (7) and are installed on the main shaft (8) so as to ensure the same tooth shape in the same axial direction.
4. The high-crushing-ratio fine crusher with the multi-functional tooth shapes according to claim 1, wherein the sieve plate (9) is fixed on the inner wall of the lower box body (10), is parallel to the main shaft, and has the length and the width respectively equal to those of the inner wall of the lower box body (10), and the distances between the two circular arc surfaces on the upper side and the cylindrical surfaces of the two crushing rollers are slightly larger than the maximum tooth height.
5. The large crushing ratio fine crusher with multiple functional tooth shapes according to claim 1, wherein the two circular arc surfaces on the upper side of the sieve plate (9) are respectively coaxial with the outer cylindrical surface of the corresponding crushing roller, and holes with the same size as the required crushing are sequentially formed on the circular arc surfaces.
6. The high crushing ratio fine crusher with multiple functional tooth forms according to claim 1, characterized in that five roller tooth discs (3) are mounted on each main shaft (8).
7. The large crushing ratio fine crusher with multiple functional tooth shapes according to claim 1, wherein each roller tooth disc (3) is provided with four groups of crushing teeth consisting of primary crushing teeth (4), cutting crushing teeth (5) and trapezoid teeth (6) which are distributed in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367754.3A CN110252456B (en) | 2019-05-05 | 2019-05-05 | A fine crusher with a large crushing ratio and multiple functional tooth shapes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367754.3A CN110252456B (en) | 2019-05-05 | 2019-05-05 | A fine crusher with a large crushing ratio and multiple functional tooth shapes |
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| Publication Number | Publication Date |
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| CN110252456A CN110252456A (en) | 2019-09-20 |
| CN110252456B true CN110252456B (en) | 2025-01-14 |
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| CN201910367754.3A Active CN110252456B (en) | 2019-05-05 | 2019-05-05 | A fine crusher with a large crushing ratio and multiple functional tooth shapes |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841752A (en) * | 2020-05-22 | 2020-10-30 | 福建省铁拓机械股份有限公司 | Multi-disc stepped crushing roller and double-roller crusher |
| CN111841753A (en) * | 2020-05-22 | 2020-10-30 | 福建省铁拓机械股份有限公司 | Multi-sheet type conical crushing roller and double-roller type crusher |
| CN114009218A (en) * | 2021-10-22 | 2022-02-08 | 河北英虎农业机械股份有限公司 | A corn ear crusher |
| CN114798101A (en) * | 2022-03-01 | 2022-07-29 | 中国人民解放军西部战区总医院 | Intracardiac branch of academic or vocational study nursing is with discarded object environmental protection collection device that has disinfection function |
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| CN203862300U (en) * | 2014-04-30 | 2014-10-08 | 四川江油新川矿山机械有限公司 | Double-rack staggering structure of pin roll |
| CN105583024A (en) * | 2016-01-21 | 2016-05-18 | 米易锦秀机械制造有限公司 | Coke cutter |
| CN209934829U (en) * | 2019-05-05 | 2020-01-14 | 江苏大学 | Multifunctional tooth-shaped large-crushing-ratio fine crusher |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202028422U (en) * | 2011-04-24 | 2011-11-09 | 江油黄龙破碎输送设备制造有限公司 | Double-tooth roller-type screening crusher |
| CN205146304U (en) * | 2015-11-24 | 2016-04-13 | 滕延芹 | Mine breaker with multiple broken function |
| CN105944791A (en) * | 2016-05-25 | 2016-09-21 | 南京航空航天大学 | Double-toothed roller crusher and working method thereof |
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2019
- 2019-05-05 CN CN201910367754.3A patent/CN110252456B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203862300U (en) * | 2014-04-30 | 2014-10-08 | 四川江油新川矿山机械有限公司 | Double-rack staggering structure of pin roll |
| CN105583024A (en) * | 2016-01-21 | 2016-05-18 | 米易锦秀机械制造有限公司 | Coke cutter |
| CN209934829U (en) * | 2019-05-05 | 2020-01-14 | 江苏大学 | Multifunctional tooth-shaped large-crushing-ratio fine crusher |
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