Search

CN-122009683-A - Scraping mechanism and coal bunker

CN122009683ACN 122009683 ACN122009683 ACN 122009683ACN-122009683-A

Abstract

The invention relates to the field of coal feeders, in particular to a scraping mechanism and a coal bunker, which comprises a butt joint assembly, wherein the butt joint assembly comprises a base, the scraping assembly comprises a first scraping plate, the connecting assembly comprises a slideway arranged in the base, a connecting body is arranged in the slideway, the connecting body is connected with the first scraping plate, the connecting assembly further comprises a limit groove arranged on the side wall of the connecting body, a limit body is fixedly arranged on the inner wall of the slideway, the limit body is an elastomer, the base drives the first scraping plate to rotate for scraping materials through the matching design of the limit body and the limit groove when the first scraping plate receives larger rotation resistance due to larger material viscosity, more adhesive materials or material blockage, the limit body can pass through the locating groove through extrusion deformation, the base and the first scraping plate relatively slide, the first scraping plate is prevented from being broken due to rotation of the base, and the motor is prevented from being burnt due to blocking and locking of the first scraping plate.

Inventors

  • JIANG HAITAO
  • WU YUNLONG
  • WANG WEI
  • LV BAIYANG
  • WANG YANJUN
  • NING QIAN
  • LI WEIYUN
  • ZHANG WANG
  • LIU SHAOPEI
  • XU MINGYANG
  • YANG ZHI
  • YANG JUNJUN
  • LI XIANCHENG
  • WANG BOTAO
  • LI YAO
  • CAO QUAN

Assignees

  • 华能北京热电有限责任公司

Dates

Publication Date
20260512
Application Date
20251020

Claims (10)

  1. 1. A scraping mechanism is characterized by comprising, A docking assembly (1), the docking assembly (1) comprising a base (11) in the shape of a ring; -a squeegee assembly (2), the squeegee assembly (2) comprising a first squeegee (21); The connecting assembly (3) is used for connecting the base (11) and the first scraping plate (21), the connecting assembly (3) comprises a slide way (31) coaxially arranged in the base (11), the slide way (31) is annular, a connecting body (32) is slidably arranged in the slide way (31), and the connecting body (32) is connected with the first scraping plate (21); the connecting assembly (3) further comprises limiting grooves (33) arranged on the side walls of the connecting body (32), the limiting grooves (33) penetrate through the two ends of the connecting body (32), limiting bodies (34) are fixedly arranged on the inner walls of the slide ways (31), the limiting bodies (34) are elastic bodies, the limiting bodies (34) extend into the limiting grooves (33) in the rotating direction of the base (11), the portions, located outside the limiting grooves (33), of the limiting bodies (34) are blocking portions, and the blocking portions can deform and shrink to pass through the limiting grooves (33) when subjected to certain extrusion force.
  2. 2. The scraping mechanism as claimed in claim 1, wherein the thickness of the limiting body (34) is gradually reduced along the rotation direction of the base (11), and the thickness of at least part of the limiting body (34) is greater than the depth of the limiting groove (33).
  3. 3. The scraping mechanism as claimed in claim 2, wherein a through hole (35) is formed between the slide way (31) and the inner wall of the base (11), the through hole (35) is annular and is coaxially arranged with the base (11), a connecting part (36) is integrally formed on the side wall of the connecting body (32), the connecting part (36) penetrates through the through hole (35) and is fixed on the first scraping plate (21), a blocking piece (37) is arranged at the through hole (35), the blocking piece (37) comprises two blocking rings (371) which are oppositely arranged, the end parts of the two blocking rings (371) are attached, the blocking rings (371) are elastic pieces, and the connecting part (36) penetrates between the two blocking rings (371).
  4. 4. The scraping mechanism as set forth in claim 3, wherein the connecting portion (36) is diamond-shaped with a gradually narrowing shape from the middle portion to the two ends, and the pointed portion of the connecting portion (36) adopts an arc transition.
  5. 5. A coal bunker is characterized by comprising the scraping mechanism as claimed in any one of claims 1-4, and further comprising, The feeding section (4) is in a horn-shaped structure with a large upper part and a small lower part; The discharging section (5) is of a cylindrical structure coaxially arranged at the lower part of the feeding section (4); The base (11) is coaxially and rotatably arranged between the feeding section (4) and the discharging section (5); The feeding device comprises a feeding section (4), wherein an annular first mounting groove (41) is coaxially arranged at the lower end of the feeding section (4), an annular first mounting part (111) is coaxially arranged at the upper end of a base (11), the first mounting part (111) is axially and slidably arranged in the first mounting groove (41), the top end face of the first mounting part (111) is abutted against the groove bottom of the first mounting groove (41), the top end face of the first mounting part (111) and the groove bottom of the first mounting groove (41) are of wavy structures with high and low fluctuation, and the wavy structure of the top end face of the first mounting part (111) is matched with the wavy structure of the groove bottom of the first mounting groove (41).
  6. 6. The coal bunker according to claim 5, wherein the lower end of the feeding section (4) is provided with an elastic part (42) at the side part of the first mounting groove (41).
  7. 7. The coal bunker of claim 6, wherein the lower extreme of first scraper blade (21) is connected on base (11), the upper end of first scraper blade (21) extends to inside feed section (4), just inside laminating of first scraper blade (21) and feed section (4), first scraper blade (21) just are provided with dodge portion (211) to first mounting groove (41) lateral wall position, dodge portion (211) are long platy, one of them one end body coupling of dodge portion (211) is on first scraper blade (21), dodge portion (211) and first scraper blade (21) between be provided with dodge mouth (212), dodge and be provided with at least one support piece (213) in mouthful (212), support piece (213) are the elastic component, first scraper blade (21) are dodged portion (211) outside position parcel and are had spacer (214).
  8. 8. The coal bunker of claim 7, wherein the upper end of the discharging section (5) is coaxially provided with an annular second mounting groove (51), the lower end of the base (11) is integrally and coaxially provided with an annular second mounting part (112), the second mounting part (112) is slidably arranged in the second mounting groove (51), the scraper assembly (2) further comprises a second scraper (22), the upper end of the second scraper (22) is fixed on the inner wall of the base (11), the lower end of the second scraper (22) extends into the discharging section (5), and the second scraper (22) is attached to the inner wall of the discharging section (5).
  9. 9. The coal bunker according to claim 8, wherein a C-shaped frame (6) is arranged between the feeding section (4) and the discharging section (5), one end of the C-shaped frame (6) is fixed on the outer wall of the feeding section (4), the other end of the C-shaped frame (6) is fixed on the outer wall of the discharging section (5), and the C-shaped frame (6) is at least provided with a part of elastic section (61).
  10. 10. The coal bunker according to claim 9, further comprising a driving assembly (7), wherein the driving assembly (7) comprises a gear ring (71) coaxially arranged on the outer wall of the base (11), a gear (72) is meshed with the gear ring (71), and a motor (73) is connected to the gear (72).

Description

Scraping mechanism and coal bunker Technical Field The invention relates to the field of coal feeders, in particular to a scraping mechanism and a coal bin. Background The coal feeder is an efficient material conveying device, is specially designed for accurately controlling and continuously supplying coal, and is used for feeding coal through a coal bin, wherein the coal bin of the coal feeder is of an inverted cone structure, and the inverted cone type coal bin is characterized in that the flow cross section area of the coal feeder gradually contracts along the material flowing direction. In the feeding process of the coal bunker, the coal is sticky due to high humidity, part of the coal can be adhered to the inner wall of the coal bunker, the existing treatment mode is scraping by a scraping plate, however, the coal bunker is blocked at the cone bottom position due to the reduction of the downward flow area of the coal bunker, once the coal bunker is blocked, the scraping plate is blocked, so that the scraping plate is difficult to act, the scraping plate is broken, the use is influenced, and the motor is burnt seriously. Disclosure of Invention Therefore, the invention aims to solve the technical problem of reducing the influence of the blockage of the coal bunker on the scraper mechanism. The technical problem is solved by the technical scheme that the scraping mechanism comprises a butt joint assembly, a scraping assembly and a connecting assembly, wherein the butt joint assembly comprises an annular base, the scraping assembly comprises a first scraping plate, the connecting assembly is used for connecting the base and the first scraping plate, the connecting assembly comprises a slideway coaxially arranged in the base, the slideway is annular, a connecting body is slidably arranged in the slideway, the connecting body is connected with the first scraping plate, the connecting assembly further comprises a limiting groove arranged on the side wall of the connecting body, the limiting groove penetrates through two ends of the connecting body, limiting bodies are fixedly arranged on the inner wall of the slideway, the limiting bodies are elastic bodies, extend into the limiting groove along the rotating direction of the base, and are in a blocking part, and the blocking part can deform and shrink to pass through the limiting groove when being subjected to certain extrusion force. In a preferred embodiment of the scraping mechanism, the thickness of the limiting body gradually decreases along the rotation direction of the base, and the thickness of at least part of the limiting body is larger than the depth of the limiting groove. In a preferred embodiment of the scraping mechanism, a through hole is formed between the slideway and the inner wall of the base, the through hole is annular and is coaxial with the base, a connecting part is integrally formed on the side wall of the connecting body, the connecting part penetrates through the through hole and is fixed on the first scraping plate, a plugging piece is arranged at the through hole and comprises two plugging rings which are oppositely arranged, the end parts of the two plugging rings are attached, the plugging rings are elastic pieces, and the connecting part is arranged between the two plugging rings in a penetrating mode. In a preferred embodiment of the scraping mechanism, the connecting part is in a diamond shape gradually narrowing from the middle part to the two ends, and the pointed part of the connecting part adopts arc transition. The invention further provides a coal bunker, which comprises a scraping mechanism, a feeding section, a discharging section and a base, wherein the feeding section is of a horn-shaped structure with a large upper part and a small lower part, the discharging section is of a cylindrical structure coaxially arranged at the lower part of the feeding section, the base is coaxially arranged between the feeding section and the discharging section in a rotating mode, an annular first mounting groove is coaxially arranged at the lower end of the feeding section, an annular first mounting part is coaxially arranged at the upper end of the base, the first mounting part is axially and slidably arranged in the first mounting groove, the top end face of the first mounting part is in contact with the groove bottom of the first mounting groove, the top end face of the first mounting part and the groove bottom of the first mounting groove are of wavy structures with high and low fluctuation, and the wavy structure of the top end face of the first mounting part and the wavy structure of the groove bottom of the first mounting groove are matched. In a preferred embodiment of the coal bunker, the lower end of the feeding section is an elastic part at the side part of the first mounting groove. In a preferred embodiment of the coal bunker, the lower end of the first scraping plate is connected to the base, the upper end of the firs