CN113477339A - Combined fine crusher rotor convenient for replacing hammer head assembly - Google Patents
Combined fine crusher rotor convenient for replacing hammer head assembly Download PDFInfo
- Publication number
- CN113477339A CN113477339A CN202110808900.9A CN202110808900A CN113477339A CN 113477339 A CN113477339 A CN 113477339A CN 202110808900 A CN202110808900 A CN 202110808900A CN 113477339 A CN113477339 A CN 113477339A
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- China
- Prior art keywords
- hammer
- shaft
- spacer ring
- section
- fixing pin
- 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.)
- Pending
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 40
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000003245 coal Substances 0.000 description 12
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
- B02C2013/2808—Shape or construction of beater elements the beater elements are attached to disks mounted on a shaft
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a combined fine crusher rotor convenient for replacing a hammer head assembly, which solves the problems of time and labor consumption in dismounting and mounting when the whole hammer shaft needs to be dismounted integrally when part of the hammer head assembly is replaced. A left section of hammer shaft (4) penetrates through the through hole (3) of the corresponding hammer shaft of the hammer disk (2) arranged on the left half shaft of the rotor main shaft (1), and a right section of hammer shaft (5) penetrates through the through hole (3) of the corresponding hammer shaft of the hammer disk (2) arranged on the right half shaft of the rotor main shaft (1); a left spacer ring (6) is arranged between two adjacent hammer disks (2) arranged on a left half shaft of the rotor main shaft (1), a pair of left spacer ring fixing pin through holes (8) and a left section hammer shaft fixing pin through hole (9) are correspondingly arranged, and a left section hammer shaft fixing pin (10) is arranged between the pair of left spacer ring fixing pin through holes (8) and the left section hammer shaft fixing pin through hole (9) in a penetrating manner; the replacement operation is simple and easy, and the cost is low.
Description
Technical Field
The invention relates to a fine crusher for crushing materials, in particular to a rotor structure of a fine crusher for crushing fire coal supplied to a circulating fluidized bed.
Background
The circulating fluidized bed boiler has small requirement on the particle size of the fire coal and high requirement on the uniformity, and the particle size and the uniformity of the fire coal are one of important factors influencing the stable combustion of the boiler; the fuel coal supplied to the circulating fluidized bed boiler generally needs to be crushed firstly, and can be supplied to the boiler for combustion after reaching the required granularity and uniformity; the crushing of the fire coal is completed by a fine crusher, a rotor is arranged in a cavity of the fine crusher, a hammer head assembly is arranged on the rotor, the fire coal continuously enters the upper part of the cavity of the fine crusher from a feeding port above the fine crusher through a belt conveyor, the rotor in the cavity drives the hammer head on the rotor to rotate at a high speed, the fire coal falling into the upper part of the cavity of the fine crusher is impacted and crushed by the hammer head rotating at a high speed, the hit coal obtains kinetic energy from the hammer head, the coal is collided with each other and crushed again, the crushed coal falls down, the coal continues to fall down along a gap between the rotor and a crushing plate body and is extruded and collided again by the rotating hammer head to be crushed, and finally the coal is discharged from a discharge port at the bottom of the fine crusher.
The working environment of the fine crusher is severe, and particularly, a rotor in a cavity needs to be replaced regularly and frequently due to high-strength collision and abrasion; the hammer head and the hammer handle in the existing fine crusher are of an integrated structure, and are integrally replaced at the same time, but because the hammer head is more serious in abrasion than the hammer handle, the hammer handle can be continuously used when the hammer head is damaged, and the material waste is caused by the integral replacement; the rotor of the existing fine crusher is mainly composed of a rotor main shaft, hammer disks and hammer head assemblies, wherein the hammer disks are arranged in a hot mode at equal intervals along the axis direction of the main shaft; because each hammer shaft is an integral shaft, when a certain hammer head component on the shaft is seriously abraded and needs to be replaced, only the whole hammer shaft can be dismantled, and the damaged hammer head component on the hammer shaft can be replaced, so that the problems of long time consumption and high labor intensity in dismounting and mounting are solved; in addition, the hammer shaft which is connected between the hammer disks in a penetrating mode is characterized in that the two ends of the hammer shaft are respectively provided with the blocking covers, the two blocking covers are fixedly positioned, the hammer shaft and the hammer disks are fixed, the blocking covers are fixedly connected with the hammer disks at the end portions through four bolts, when the hammer shaft needs to be disassembled, the bolt connecting bolts on the blocking covers at the two sides need to be disassembled, the defects that the disassembly and the assembly are time-consuming and labor-consuming are overcome, the replacement and maintenance time is prolonged, and the normal production on site is influenced.
Disclosure of Invention
The invention provides a combined fine crusher rotor convenient for replacing a hammer head assembly, which solves the technical problem that the whole hammer shaft needs to be integrally disassembled when part of the hammer head assembly is replaced, so that the disassembly and the assembly are time-consuming and labor-consuming.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: the traditional whole hammer shaft is changed into a sectional type hammer shaft, the hammer shaft is designed into a multi-section movable butt joint mode, and when a hammer head component on a certain section of the hammer shaft is damaged, the hammer head component is replaced only by detaching the section of the hammer shaft; with the tradition fix the hammer axle through both ends blanking cover, prevent the mode of its drunkenness, change into and set up the spacer ring between double-phase adjacent hammer disks, and on the spacer ring with the hammer epaxial, set up the fixed pin cross-under through-hole respectively, with the fixed pin cross-under between spacer ring and hammer axle, earlier fix the location of spacer ring through two adjacent hammer disks, cross-under fixed pin between rethread spacer ring and the hammer axle, thereby realized the fixed and anti-drunkenness of hammer axle, this kind of simple and easy bayonet lock fixed mode, brought the convenience of quick dismantlement and assembly to the segmentation hammer axle.
A combined fine crusher rotor convenient for replacing a hammer head component comprises a rotor main shaft, hammer disks are arranged on the rotor main shaft at equal intervals in a heating mode, hammer shafts are arranged on the outer edges of the hammer disks and penetrate through holes, the hammer shafts corresponding to the hammer disks arranged on a left half shaft of the rotor main shaft penetrate through the through holes and are connected with a left section of the hammer shaft in a penetrating mode, and the hammer shafts corresponding to the hammer disks arranged on a right half shaft of the rotor main shaft penetrate through the through holes and are connected with a right section of the hammer shaft in a penetrating mode; a left spacer ring is arranged between two adjacent hammer disks arranged on a left half shaft of the rotor main shaft, a pair of left spacer ring fixing pin through holes is arranged on the left spacer ring, a left section hammer shaft fixing pin through hole is arranged on the left section hammer shaft, the pair of left spacer ring fixing pin through holes and the left section hammer shaft fixing pin through hole are correspondingly arranged, and a left section hammer shaft fixing pin is arranged between the pair of left spacer ring fixing pin through holes and the left section hammer shaft fixing pin through hole in a penetrating manner; between two adjacent hammer disks that set up on rotor main shaft right side semi-axis, be provided with the right side spacer ring, be provided with a pair of right side spacer ring fixed pin cross-under hole on the spacer ring of right side, be provided with right section hammer spindle fixed pin cross-under hole on the right section hammer spindle, a pair of right side spacer ring fixed pin cross-under hole and right section hammer spindle fixed pin cross-under hole are corresponding the setting, have right section hammer spindle fixed pin to cross-under between a pair of right side spacer ring fixed pin cross-under hole and right section hammer spindle fixed pin cross-under hole.
The outer circle of the hammer disc is provided with hammer shafts which penetrate through the through holes at equal intervals in a radian manner; the hammer shaft corresponding to the hammer disk arranged on the rotor main shaft penetrates through the through hole, the left, middle and right sections of hammer shafts are arranged, and each section of hammer shaft is provided with a spacing ring for fixing the section of hammer shaft and a hammer shaft fixing pin.
The number of the hammer shafts arranged on the excircle of the hammer disk at equal intervals in a radian mode penetrates through the through holes to be 8 or 12.
The invention realizes convenient disassembly when the hammer head component is partially replaced, improves the working efficiency and shortens the maintenance time of the fine crusher.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view taken along line A-A in FIG. 1;
FIG. 3 is a view showing the fitting relationship among the left-segment hammer shaft 4, the left-side spacer ring 6 and the left-segment hammer shaft fixing pin 10 according to the present invention;
fig. 4 is a schematic view of the structure of the left spacer ring 6 of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a combined fine crusher rotor convenient for replacing a hammer head component comprises a rotor main shaft 1, hammer disks 2 are arranged on the rotor main shaft 1 at equal intervals in a heating mode, a hammer shaft penetrates through a through hole 3, a left section of hammer shaft 4 penetrates through the through hole 3 and is arranged on the outer edge of each hammer disk 2, corresponding to the hammer disk 2, arranged on the left half shaft of the rotor main shaft 1, and a right section of hammer shaft 5 penetrates through the through hole 3 and is arranged on the right half shaft of the rotor main shaft 1; a left spacer ring 6 is arranged between two adjacent hammer disks 2 arranged on a left half shaft of a rotor main shaft 1, a pair of left spacer ring fixing pin through holes 8 is arranged on the left spacer ring 6, a left section hammer shaft fixing pin through hole 9 is arranged on a left section hammer shaft 4, the pair of left spacer ring fixing pin through holes 8 and the left section hammer shaft fixing pin through hole 9 are correspondingly arranged, and a left section hammer shaft fixing pin 10 is arranged between the pair of left spacer ring fixing pin through holes 8 and the left section hammer shaft fixing pin through hole 9 in a penetrating manner; between two adjacent hammer disks 2 that set up on 1 right semi-axis of rotor main shaft, be provided with right side spacer ring 7, be provided with a pair of right side spacer ring fixed pin cross-under hole on right side spacer ring 7, be provided with right section hammer spindle fixed pin cross-under hole on right section hammer spindle 5, a pair of right side spacer ring fixed pin cross-under hole and right section hammer spindle fixed pin cross-under hole are corresponding the setting, have right section hammer spindle fixed pin to cross-under between a pair of right side spacer ring fixed pin cross-under hole and right section hammer spindle fixed pin cross-under hole.
The outer circle of the hammer disk 2 is provided with hammer shafts which penetrate through the through holes 3 at equal intervals in a radian manner; the hammer shaft corresponding to the hammer disk 2 arranged on the rotor main shaft 1 penetrates through the through hole 3 and is provided with a left section of hammer shaft, a middle section of hammer shaft and a right section of hammer shaft, the left section of hammer shaft, the middle section of hammer shaft and the right section of hammer shaft are sequentially connected together to form an integral hammer shaft, and each section of hammer shaft is provided with a spacing ring and a hammer shaft fixing pin for fixing the section of hammer shaft.
The number of the hammer shafts arranged on the excircle of the hammer disk 2 at equal intervals in a radian manner penetrates through the through holes 3 to be 8 or 12; when the cavity of the fine crusher is large, the hammer disks with large diameters can be selected, the hammer shaft holes in the excircle of each hammer disk can be designed into 12, when the cavity of the fine crusher is limited, the hammer disks with small diameters can be selected, and the hammer shaft holes in the excircle of each hammer disk can be designed into 8.
Claims (3)
1. A combined fine crusher rotor convenient for replacing a hammer head component comprises a rotor main shaft (1), hammer disks (2) are arranged on the rotor main shaft (1) at equal intervals in a heating mode, and hammer shafts penetrating through holes (3) are arranged on the outer edges of the hammer disks (2), and the combined fine crusher rotor is characterized in that a left section of hammer shaft (4) penetrates through the through holes (3) and is arranged in a corresponding hammer shaft of the hammer disks (2) arranged on a left half shaft of the rotor main shaft (1), and a right section of hammer shaft (5) penetrates through the through holes (3) and is arranged in a corresponding hammer shaft of the hammer disks (2) arranged on a right half shaft of the rotor main shaft (1); a left spacer ring (6) is arranged between two adjacent hammer disks (2) arranged on a left half shaft of a rotor main shaft (1), a pair of left spacer ring fixing pin through holes (8) is arranged on the left spacer ring (6), a left section hammer shaft fixing pin through hole (9) is arranged on a left section hammer shaft (4), the pair of left spacer ring fixing pin through holes (8) and the left section hammer shaft fixing pin through hole (9) are correspondingly arranged, and a left section hammer shaft fixing pin (10) is arranged between the pair of left spacer ring fixing pin through holes (8) and the left section hammer shaft fixing pin through hole (9) in a penetrating manner; between two adjacent hammer disks (2) that set up on rotor main shaft (1) right half axle, be provided with right side spacer ring (7), be provided with a pair of right side spacer ring fixed pin cross under hole on right side spacer ring (7), be provided with right section hammer spindle fixed pin cross under hole on right section hammer spindle (5), a pair of right side spacer ring fixed pin cross under hole and right section hammer spindle fixed pin cross under hole are corresponding the setting, it has right section hammer spindle fixed pin to have worn to connect between a pair of right side spacer ring fixed pin cross under hole and right section hammer spindle fixed pin cross under hole.
2. The combined fine crusher rotor convenient for replacing the hammer head component as claimed in claim 1, wherein the hammer shaft passing through holes (3) are arranged on the outer circle of the hammer disk (2) at equal intervals in radian; a hammer shaft corresponding to a hammer disk (2) arranged on a rotor main shaft (1) penetrates through a through hole (3), a left hammer shaft, a middle hammer shaft and a right hammer shaft are arranged, and a spacing ring and a hammer shaft fixing pin for fixing the hammer shaft are arranged on each hammer shaft.
3. The rotor of a combined fine crusher convenient for replacing a hammer head assembly according to claim 2, wherein the number of the hammer shafts arranged at equal intervals in radian on the outer circumference of the hammer disk (2) is 8 or 12 through holes (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110808900.9A CN113477339A (en) | 2021-07-16 | 2021-07-16 | Combined fine crusher rotor convenient for replacing hammer head assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110808900.9A CN113477339A (en) | 2021-07-16 | 2021-07-16 | Combined fine crusher rotor convenient for replacing hammer head assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113477339A true CN113477339A (en) | 2021-10-08 |
Family
ID=77941941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110808900.9A Pending CN113477339A (en) | 2021-07-16 | 2021-07-16 | Combined fine crusher rotor convenient for replacing hammer head assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113477339A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1335394A (en) * | 1962-10-03 | 1963-08-16 | Steinmueller Gmbh L & C | Device for fixing the hammer heads to the arms of hammer mills |
| GB1307787A (en) * | 1971-09-08 | 1973-02-21 | Krupp Gmbh | Hammer mill |
| CN2392608Y (en) * | 1999-09-02 | 2000-08-23 | 扬州伟江建材机械有限公司 | Reversible Impact Hammer Crusher |
| CN101780426A (en) * | 2010-03-19 | 2010-07-21 | 海盐机械厂 | Reversible hammer crusher |
| CN101786032A (en) * | 2010-03-19 | 2010-07-28 | 海盐机械厂 | Rotor used in reversible hammer slice type crushing machine |
| CN202377044U (en) * | 2012-01-09 | 2012-08-15 | 嘉兴市一建机械制造有限公司 | Reversible reaction-type fine crusher rotor |
| CN105498909A (en) * | 2016-01-16 | 2016-04-20 | 广西辉煌机械股份有限公司 | Crusher rotor |
| CN106179611A (en) * | 2016-08-26 | 2016-12-07 | 南通奥普机械工程有限公司 | A kind of rotor-support-foundation system of lateritic nickel ore drying crusher |
| CN208302899U (en) * | 2018-03-16 | 2019-01-01 | 洛阳亚联重型机械有限公司 | A kind of ore dressing composite crusher |
| CN208302906U (en) * | 2018-03-16 | 2019-01-01 | 洛阳亚联重型机械有限公司 | A kind of composite crusher rotor structure |
| CN217796446U (en) * | 2021-07-16 | 2022-11-15 | 太原锅炉集团有限公司 | Combined fine crusher rotor convenient for replacing hammer head assembly |
-
2021
- 2021-07-16 CN CN202110808900.9A patent/CN113477339A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1335394A (en) * | 1962-10-03 | 1963-08-16 | Steinmueller Gmbh L & C | Device for fixing the hammer heads to the arms of hammer mills |
| GB1307787A (en) * | 1971-09-08 | 1973-02-21 | Krupp Gmbh | Hammer mill |
| CN2392608Y (en) * | 1999-09-02 | 2000-08-23 | 扬州伟江建材机械有限公司 | Reversible Impact Hammer Crusher |
| CN101780426A (en) * | 2010-03-19 | 2010-07-21 | 海盐机械厂 | Reversible hammer crusher |
| CN101786032A (en) * | 2010-03-19 | 2010-07-28 | 海盐机械厂 | Rotor used in reversible hammer slice type crushing machine |
| CN202377044U (en) * | 2012-01-09 | 2012-08-15 | 嘉兴市一建机械制造有限公司 | Reversible reaction-type fine crusher rotor |
| CN105498909A (en) * | 2016-01-16 | 2016-04-20 | 广西辉煌机械股份有限公司 | Crusher rotor |
| CN106179611A (en) * | 2016-08-26 | 2016-12-07 | 南通奥普机械工程有限公司 | A kind of rotor-support-foundation system of lateritic nickel ore drying crusher |
| CN208302899U (en) * | 2018-03-16 | 2019-01-01 | 洛阳亚联重型机械有限公司 | A kind of ore dressing composite crusher |
| CN208302906U (en) * | 2018-03-16 | 2019-01-01 | 洛阳亚联重型机械有限公司 | A kind of composite crusher rotor structure |
| CN217796446U (en) * | 2021-07-16 | 2022-11-15 | 太原锅炉集团有限公司 | Combined fine crusher rotor convenient for replacing hammer head assembly |
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