CN212445672U - Grinding disc of defibrator - Google Patents
Grinding disc of defibrator Download PDFInfo
- Publication number
- CN212445672U CN212445672U CN202020720639.8U CN202020720639U CN212445672U CN 212445672 U CN212445672 U CN 212445672U CN 202020720639 U CN202020720639 U CN 202020720639U CN 212445672 U CN212445672 U CN 212445672U
- Authority
- CN
- China
- Prior art keywords
- grinding
- teeth
- area
- district
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a defibrator grinding disc, the circular grinding disc of constituteing by the fan-shaped abrasive disc of a plurality of pieces, every fan-shaped abrasive disc divides into broken district, corase grind district and correct grinding district, every divide equally on the district interior plane and do not be equipped with the radial gerar grinding that a plurality of circumference kept apart the range be provided with radial staggered arrangement's circumference tooth between the adjacent gerar grinding of corase grind district and correct grinding district, be provided with mounting hole or key and/or groove that are used for fixed mounting on another plane, broken district, corase grind district and correct grinding district are 1.25 along radius direction's length ratio: 1: 1.75, the gear ratio of the grinding teeth of the crushing zone, the rough grinding zone and the fine grinding zone is 1: 2: and 5, the cross sections of the circumferential teeth and the grinding teeth of the coarse grinding area and the fine grinding area are right trapezoid, and the cross section of the grinding teeth of the crushing area is isosceles trapezoid. The utility model discloses be favorable to improving special straw fibrous separation efficiency, guarantee straw fiber material's quality, be favorable to the comprehensive utilization of straw.
Description
Technical Field
The utility model belongs to the technical field of cutting tool design and manufacturing, a defibrator abrasive disc is related to, more specifically relates to a profile of tooth structure optimal design that is used for processing the defibrator abrasive disc of straw.
Background
The agricultural and forestry economic crop residue and waste in China are large in quantity and wide in distribution. At present, more than half of farmers in rural areas in China still use straws and firewood as main domestic fuels, and a series of problems of low burning efficiency, serious pollution and the like exist. The residue of the agricultural and forestry economic crops is used as a novel artificial board and a fiber raw material for papermaking, so that the utilization and conversion efficiency of resources is improved, the income of farmers is increased, and the rural life and consumption structure are adjusted to play a promoting role. Further, the method helps to relieve the serious pollution situation of agricultural residues, promote the development of industrial production of artificial boards, paper and the like which comprehensively use new materials, and make beneficial and active contribution to the construction of new rural areas. Therefore, the development and the application of the key intelligent equipment for comprehensively utilizing the agricultural and forestry economic crop residues have remarkable social and economic values. The key core equipment for comprehensive utilization of the agricultural and forestry economic crop residues is a defibrator, external energy is converted into grinding acting force by the defibrator through the rotation motion of grinding discs and is transmitted to fiber raw materials, the fiber raw materials are forced to be gradually broken and finally dissociated into fibers under the interaction of dynamic and static grinding teeth in the motion, and the fiber raw materials are manufactured into fiber boards at high temperature and high pressure in the subsequent process. In recent years, with the rapid development of the medium and high density fiberboard industry, the thermo-grinding machine is rapidly developed at home and abroad.
SUMMERY OF THE UTILITY MODEL
The utility model aims at improving the utilization efficiency of crops residua such as wheat straw, rice straw, cornstalk, improving the production efficiency that the agriculture and forestry cash crop residua was handled to the defibrator, reducing the pollution that agriculture and forestry cash crop residua caused, reducing the air pollution that the straw burned the cause. The grinding disc of the defibrator is specially used for processing the straw raw materials, the grinding disc can be used for improving the processing efficiency of straw raw materials processed by the defibrator and the quality of produced fibers, and the service life of the grinding disc is prolonged.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a refiner plate of a defibrator, comprising a plurality of fan-shaped plates, each of which is divided into a crushing zone 1, a rough grinding zone 2 and a finish grinding zone 3 from the inside to the outside, each of which is provided with a plurality of circumferential spaced radial teeth 5 on a plane in the zone, the rough grinding zone 2 and the finish grinding zone 3 are provided with circumferential teeth 6 between adjacent teeth 5, and another plane is provided with a mounting hole 7 or a key and/or a groove for fixed mounting, the crushing zone 1, the rough grinding zone 2 and the finish grinding zone 3 are 1.25 in length ratio along the radius direction: 1: 1.75, the gear ratio of the grinding teeth 5 of the crushing zone 1, the rough grinding zone 2 and the fine grinding zone 3 is 1: 2: 5, the cross sections of the circumferential teeth 6 and the grinding teeth 5 of the rough grinding area 2 and the fine grinding area 3 are right trapezoid, and the cross section of the grinding teeth 5 of the crushing area 1 is isosceles trapezoid.
Further preferably, the cross section of the grinding teeth 5 of the rough grinding zone 2 and the fine grinding zone 3 is a right trapezoid, the included angle between the inclined edge and the horizontal plane is 50-55 degrees, the bottom edge length is L1-4L, the vertical edge length is H-8L, wherein L is the average length of the straw fibers.
Further preferably, the extension line of the grinding teeth 5 of the crushing zone 1 is tangent to the base circle 4 of the fan-shaped grinding disc, the included angle between the extension line of the grinding teeth 5 adjacent to the crushing zone 1 and the connecting line of the tangent point of the base circle 4 of the fan-shaped grinding disc and the center of the base circle 4 is 7 °, the included angle a between the tangent point nearest to the fan-shaped grinding disc and the symmetrical plane of the fan-shaped grinding disc passing through the center of the base circle (4) is 40-45 °, and the tangent points are arranged clockwise at equal angles from the tangent point nearest to the fan-shaped grinding disc.
Preferably, the grinding teeth 5 of the crushing zone 1 have a cross section of an isosceles trapezoid, the length of the bottom side of the grinding teeth 5 is L2-15L, the inner angle formed by the two sides and the bottom side of the grinding teeth is D1-50-55 degrees, the height of the grinding teeth 5 is h-12L, and L is the average length of the straw fibers.
Further preferably, the circumferential teeth 6 of the refining zone 3 have a right trapezoid cross-section, the length of the bottom edge of the right trapezoid cross-section is L3-12L, the angle between the oblique edge and the bottom edge is D2-30-35 °, the height of the grinding teeth 5 is h 1-8L, and L is the average length of the straw fibers.
Further preferably, the center lines of the grinding teeth 5 of the fine grinding zone 3 are parallel to each other, the included angle N of the symmetrical plane passing through the center of the base circle 4 of the sector plate with the sector plate is 20-30 °, the center extension line of the grinding teeth 5 of the coarse grinding zone 2 is tangent to the base circle 4 of the sector plate, the included angle formed by the center extension line of the adjacent grinding teeth 5 of the coarse grinding zone 2 and the connecting line of the tangent point of the base circle 4 of the sector plate and the center of the base circle 4 is 3.5 °, the tangent point nearest to the sector plate is coincident with the tangent point nearest to the crushing zone 1, and the tangent points are arranged clockwise at the same angle from the tangent point nearest to the sector plate.
Further preferably, the height difference of the grinding teeth 5 of the crushing zone 1, which are higher than the grinding teeth 5 of the rough grinding zone 2, is 4L, and the tooth heights of the grinding teeth 5 and the circumferential teeth 6 of the rough grinding zone 2 and the fine grinding zone 3 are 8L, wherein L is the average length of the straw fibers.
Further preferably, the mounting hole 7 is at least 2 through holes with counterbores.
The utility model discloses compare with current wood raw materials's defibrator abrasive disc, have following advantage and beneficial effect:
1. the grinding disc with the novel grinding tooth section and the right trapezoid working surface can improve the working efficiency of the grinding disc for processing straws, and the inclination angle of the grinding tooth can ensure the cutting capacity of the grinding disc rotating at high speed on straw fibers when the defibrator grinds the straws;
2. the method that the extension line of the grinding tooth is tangent with the inner circle of the grinding tooth at equal angles is adopted, so that the flowing capacity of the fiber can be improved, and the energy consumption of fiber separation is reduced;
3. the reasonable tooth length design of each area can improve the overall processing performance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the design angle of the grinding teeth in the grinding plate crushing zone in the embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 1;
fig. 5 is a schematic cross-sectional view of C-C of fig. 1.
The reference numbers in the figures illustrate: 1 is a crushing zone, 2 is a rough grinding zone, 3 is a fine grinding zone, 4 is a base circle, 5 is a grinding tooth, 6 is a circumferential tooth, and 7 is a mounting hole.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below by taking corn stalks as an example in combination with the accompanying drawings in the embodiment of the present invention.
Corn stalk's fibrous length 1.0mm-1.4mm, get fibrous length average value L1.2 mm, carry out optimal design to the abrasive disc, as shown in attached figure 1-5, the utility model discloses a defibrator abrasive disc, the circular abrasive disc of constituteing by a plurality of fan-shaped abrasive discs, every fan-shaped abrasive disc divides into crushing zone 1, corase grind district 2 and correct grinding district 3, every on distinguishing on the plane equally divide the radial grinding teeth 5 that do not are provided with a plurality of circumference isolation arrangement roughly grind district 2 with be provided with radial staggered arrangement's circumference tooth 6 between the 3 adjacent grinding teeth 5 of correct grinding district, be provided with mounting hole 7 or key and/or groove that are used for fixed mounting on another plane, crushing zone 1 roughly grind district 2 with correct grinding district 3 is 1.25 along the length ratio of radius direction: 1: 1.75, respectively 100mm, 80mm and 140 mm; the gear ratio of the grinding teeth 5 of the crushing zone 1, the rough grinding zone 2 and the fine grinding zone 3 is 1: 2: 5, the cross sections of the circumferential teeth 6 and the grinding teeth 5 of the rough grinding area 2 and the fine grinding area 3 are right trapezoid, and the cross section of the grinding teeth 5 of the crushing area 1 is isosceles trapezoid.
The cross section of the grinding teeth 5 of the rough grinding area 2 and the fine grinding area 3 is a right trapezoid, the included angle between the inclined edge and the horizontal plane is D equal to 53 degrees, the bottom side length is L1 equal to 4L equal to 4.8mm, the vertical side length is H equal to 8L equal to 9.6mm, and L is the average length of straw fibers.
The center extension line of the grinding teeth 5 of the crushing area 1 is tangent to the base circle 4 of the fan-shaped grinding disc, the included angle between the center extension line of the adjacent grinding teeth 5 of the crushing area 1 and the connecting line of the tangent point of the base circle 4 of the fan-shaped grinding disc and the circle center of the base circle 4 is 7 degrees, the included angle A between the tangent point nearest to the fan-shaped grinding disc and the symmetrical plane of the fan-shaped grinding disc passing through the circle center of the base circle 4 is 45 degrees, and the tangent points are arranged clockwise at equal angles from the tangent point nearest to the fan-shaped grinding disc.
The section of the grinding teeth 5 of the crushing zone 1 is an isosceles trapezoid, the inner angle formed by the two waists and the bottom edge is D1 ═ 53 °, the length of the bottom edge is L2 ═ 15L ═ 18mm, the height of the grinding teeth 5 is h ═ 12L ═ 14.4mm, and L is the average length of the straw fibers.
The section of the circumferential teeth 6 of the refining zone 3 is a right trapezoid, the length of the bottom edge is L3-12L-14.4 mm, the angle between the oblique edge and the bottom edge is D2-32 DEG, the height of the grinding teeth 5 is h 1-8L-9.6 mm, and L is the average length of the straw fibers.
The central lines of the grinding teeth 5 of the fine grinding zone 3 are parallel to each other, and the included angle N between the central lines and the symmetrical plane of the fan-shaped grinding plates passing through the center of the base circle is 25 degrees. The center extension line of the grinding teeth 5 of the rough grinding area 2 is tangent to the base circle 4 of the fan-shaped grinding disc, the included angle between the center extension line of the adjacent grinding teeth 5 of the rough grinding area 2 and the tangent point of the base circle 4 of the fan-shaped grinding disc and the circle center connecting line of the base circle 4 is 3.5 degrees, the tangent point nearest to the fan-shaped grinding disc is the same point as the tangent point nearest to the crushing area 1, and the tangent points are arranged clockwise at equal angles from the tangent point nearest to the fan-shaped grinding disc.
The height difference of the grinding teeth 5 of the crushing zone 1, which is higher than the grinding teeth 5 of the rough grinding zone 2, is h 1-4L-4.8 mm, and the heights of the grinding teeth 5 and the circumferential teeth 6 of the rough grinding zone 2 and the fine grinding zone 3 are 8L-9.6 mm, wherein L is the average length of the straw fibers.
The above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A refiner plate of a defibrator, comprising a plurality of circular plates, characterized in that: every fan-shaped abrasive disc divides into broken zone (1), corase grind district (2) and accurate grinding district (3) from inside to outside, every divide equally on the district an interior plane and do not be provided with radial gerar grinding (5) of a plurality of circumference isolated arrangement roughly grind district (2) with be provided with radial staggered arrangement's circumference tooth (6) between accurate grinding district (3) adjacent gerar grinding (5), be provided with mounting hole (7) or key and/or groove that are used for fixed mounting on another plane, broken zone (1) roughly grind district (2) with accurate grinding district (3) are 1.25 along radius direction's length ratio: 1: 1.75, the ratio of the number of teeth of the crushing zone (1), the rough grinding zone (2) and the grinding teeth (5) of the fine grinding zone (3) being 1: 2: 5, the cross sections of the circumferential teeth (6) and the grinding teeth (5) of the rough grinding area (2) and the fine grinding area (3) are right trapezoid, and the cross section of the grinding teeth (5) of the crushing area (1) is isosceles trapezoid.
2. A refiner plate according to claim 1 wherein: the cross section of the grinding teeth (5) of the rough grinding area (2) and the fine grinding area (3) is in a right trapezoid shape, the included angle between the inclined edge of the rough grinding area and the horizontal plane is 50-55 degrees, the length of the bottom edge of the rough grinding area is L1-4L, the length of the vertical edge of the rough grinding area is H-8L, and L is the average length of the straw fibers.
3. A refiner plate according to claim 1 wherein: the center extension line of grinding teeth (5) of the crushing area (1) is tangent to a base circle (4) of the fan-shaped grinding disc, the included angle between the center extension line of the adjacent grinding teeth (5) of the crushing area (1) and the tangent point of the base circle (4) of the fan-shaped grinding disc and the circle center connecting line of the base circle (4) is 7 degrees, the included angle A between the tangent point nearest to the fan-shaped grinding disc and the symmetrical plane of the fan-shaped grinding disc passing through the circle center of the base circle (4) is 40-45 degrees, and the tangent points are clockwise arranged at the same angle from the tangent point nearest to the fan-shaped grinding disc.
4. A refiner plate according to claim 1 wherein: the section of the grinding teeth (5) of the crushing zone (1) is isosceles trapezoid, the length L2 of the bottom edge of the grinding teeth is 15L, the inner angle formed by the two waists and the bottom edge of the grinding teeth is D1-50-55 degrees, the height h of the grinding teeth (5) is 12L, and L is the average length of straw fibers.
5. A refiner plate according to claim 1 wherein: the section of the circumferential teeth (6) of the fine grinding zone (3) is in a right trapezoid shape, the length L3 of the bottom edge is 12L, the inner angle formed by the oblique edge and the bottom edge is D2-30-35 degrees, the height of the grinding teeth (5) is h 1-8L, and L is the average length of straw fibers.
6. A refiner plate according to claim 3 wherein: the central lines of the grinding teeth (5) of the fine grinding area (3) are parallel to each other, an included angle N of a symmetrical plane passing through the circle center of the base circle (4) with the fan-shaped grinding plate is 20-30 degrees, the central extension line of the grinding teeth (5) of the coarse grinding area (2) is tangent to the base circle (4) of the fan-shaped grinding plate, the central extension line of the adjacent grinding teeth (5) of the coarse grinding area (2) and the tangent point of the base circle (4) of the fan-shaped grinding plate form an included angle of 3.5 degrees with the circle center connecting line of the base circle (4), the tangent point nearest to the fan-shaped grinding plate is coincident with the tangent point nearest to the crushing area (1), and the tangent points are arranged clockwise at equal angles from the tangent point nearest to the fan-shaped grinding plate.
7. A refiner plate according to claim 4 wherein: the height difference of the grinding teeth (5) of the crushing area (1) is 4L, the grinding teeth (5) of the rough grinding area (2) and the grinding teeth (5) of the fine grinding area (3) and the tooth height of the circumferential teeth (6) are 8L, wherein L is the average length of the straw fibers.
8. A refiner plate according to claim 1 wherein: the mounting hole (7) is at least 2 through holes with counterbores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020720639.8U CN212445672U (en) | 2020-05-06 | 2020-05-06 | Grinding disc of defibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020720639.8U CN212445672U (en) | 2020-05-06 | 2020-05-06 | Grinding disc of defibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212445672U true CN212445672U (en) | 2021-02-02 |
Family
ID=74464475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020720639.8U Active CN212445672U (en) | 2020-05-06 | 2020-05-06 | Grinding disc of defibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212445672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496967A (en) * | 2020-05-06 | 2020-08-07 | 镇江市高等专科学校 | Grinding disc of defibrator |
-
2020
- 2020-05-06 CN CN202020720639.8U patent/CN212445672U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496967A (en) * | 2020-05-06 | 2020-08-07 | 镇江市高等专科学校 | Grinding disc of defibrator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5362003A (en) | Refining segment | |
| CN202490644U (en) | Novel hammer-piece straw feed grinder rotor | |
| CN212445672U (en) | Grinding disc of defibrator | |
| CN201386231Y (en) | Grinding disc of thermofiner with optimized tooth structure | |
| CA2618213C (en) | Refiner plates with high-strength high-performance bars | |
| CN110598347B (en) | Design method for tooth-shaped structure of grinding sheet of defibrator | |
| CN112553933A (en) | Multi-section straw fiber slurry extraction method | |
| SE503187C3 (en) | Method of manufacturing fiber pulp and grinding segments for a refiner to carry out the method | |
| CN104343034A (en) | Abrasive sheet for abrasive disc of pulping machine | |
| CN206800053U (en) | A kind of full-automatic Straw decomposing machine mill | |
| CN111496967A (en) | Grinding disc of defibrator | |
| CN202107941U (en) | Strong-evacuating type movable millstone for grinding | |
| CN201010820Y (en) | Multifunctional grinding pan | |
| CN220425487U (en) | Oblique straight tooth Split type abrasive disc | |
| CN212237614U (en) | Blade structure for particle machine and knife roller formed by blade structure | |
| CN210477269U (en) | Novel timber peeler | |
| CN204356578U (en) | Abrasive disk of stuff grinder abrasive disc | |
| CN201321584Y (en) | Milling blade for chemimechanical pulp mill | |
| CN106544917A (en) | A kind of beating mill disk of fiberizer | |
| CN112796141A (en) | Method for preparing primary-color biomechanical pulp by treating wheat straws with hot water and biological enzyme and fully utilizing byproducts | |
| CN210916791U (en) | Energy-conserving abrasive disc of domestic paper wood pulp | |
| CN203200584U (en) | Novel energy-saving pulping machine low-pressure cutting disc | |
| CN111921658A (en) | Blade structure for particle machine and knife roller formed by blade structure | |
| CN213708960U (en) | High-concentration pulping machine abrasive disc suitable for agricultural straw bio-mechanical pulp | |
| CN206455785U (en) | It is a kind of that there is the defiberator-refiner plate for optimizing tooth slot structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |