WO2024005281A1 - Outil de fixation de lame pour un broyeur - Google Patents

Outil de fixation de lame pour un broyeur Download PDF

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Publication number
WO2024005281A1
WO2024005281A1 PCT/KR2022/018940 KR2022018940W WO2024005281A1 WO 2024005281 A1 WO2024005281 A1 WO 2024005281A1 KR 2022018940 W KR2022018940 W KR 2022018940W WO 2024005281 A1 WO2024005281 A1 WO 2024005281A1
Authority
WO
WIPO (PCT)
Prior art keywords
grinder
blade
fixing
fixing part
support
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.)
Ceased
Application number
PCT/KR2022/018940
Other languages
English (en)
Korean (ko)
Inventor
이중호
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US18/281,223 priority Critical patent/US20250025978A1/en
Priority to CN202280020324.4A priority patent/CN117642252A/zh
Publication of WO2024005281A1 publication Critical patent/WO2024005281A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/003—Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools

Definitions

  • the present invention relates to a blade fastener for a grinder, and more specifically, to a blade fastener for a grinder that improves the structure of the blade fastener for a grinder to facilitate grinder blade replacement and minimize the vibration of the blade during work. will be.
  • Hand grinders which are generally used in industrial machinery, shipbuilding, and other equipment, are mainly used to smooth the rough surfaces of primary processed parts or areas to be painted, or to grind primary surfaces such as pipes, angles, and steel plates. It is used for partial cutting and cutting of raw materials.
  • a hand grinder receives power from an electric motor or compressor to operate the grinder shaft at high speed, and also cuts objects made of stone or metal by cutting or polishing disks mounted on the grinder shaft. It is used to polish the surface of a product to make it shiny, or to finish work by grinding, cutting, or cutting unprocessed parts and edges.
  • the grinder blade of a hand grinder is used by attaching it to the grinder shaft and fixing it with a nut, or by fastening a bolt to the grinder shaft.
  • the present invention to solve the above problem is to install a fastener on the blade of the grinder drive shaft, and then prevent the fixing part from being wound around the drive shaft any more during grinding work, so that the work of separating the fixing part from the drive shaft is easily performed.
  • the blade fastener for a grinder of the present invention to solve the above problems includes a fixing part screwed to the drive shaft for the grinder; a support part inserted into the lower part of the fixing part and in close contact with the grinder blade; a plurality of bearings rotating and rolling between the fixing part and the support part; It consists of a snap ring installed at the lower part of the fixing part and hung on the support part.
  • the blade fastener for a grinder of the present invention consists of a fixing part and a support part, and the support part rotates together with the grinder blade, and a part of the support part rotates together with the blade inserted into the drive shaft of the grinder, so that it is easy to replace the grinder blade and the blade is used during work. It has the effect of minimizing the tremor phenomenon.
  • FIG. 1 is an exploded perspective view showing a blade fastener for a grinder according to the present invention
  • FIG 2 is a cross-sectional view of the blade fastener for the grinder shown in Figure 1;
  • FIG. 3 is an exploded perspective view showing another embodiment of the blade fastener for a grinder according to the present invention.
  • Figure 4 is a cross-sectional view of the blade fastener for the grinder shown in Figure 3;
  • Figure 5 is a diagram illustrating how the blade of the grinder blade fastener is firmly fixed.
  • the blade fastener for a grinder of the present invention includes a blade 12 fitted into the grinder 10, a fixing part 20 coupled to the grinder 10, and the fixing part ( 20), a support part 30 that is inserted into the lower part and is in close contact with the blade 12 of the grinder 10, a plurality of bearings 40 that rotate and roll between the fixing part 20 and the support part 30, and It consists of a fixing member 50 installed at the lower part of the fixing part 20 and hung on the support part 30.
  • the grinder 10 has a typical structure and will not be described in detail. It is provided with a drive shaft 13, and a rotation inducing member 11 is provided at the rear of the blade 12.
  • the locking and unlocking guide piece 21 may have an outer surface shaped like a square, pentagon, hexagon, or polygon.
  • the support part 30 includes a rotation guide groove 31 corresponding to the rotation support groove 24 of the fixing part 20, a fitting hole 32 for inserting the fitting piece 22 of the fixing part 20, and , It consists of a locking protrusion 33 that fixes the fixing member 50 coupled to the fixing groove 23 and prevents the fixing part 20 from being separated.
  • the bearing 40 is seated in the rotation support groove 24 of the fixing part 20 and the rotation guide groove 31 of the support part 30 and rotates to make a rolling motion.
  • the fixing member 50 is provided in the form of a ring with a certain thickness, the inner surface of the ring is inserted into the fixing groove 23 of the fixing part 20, and the outer surface of the ring is the locking protrusion of the support part 30. 33) to prevent the fixing part 20 from being separated.
  • the fixing member 50 may be provided as a snap ring, C ring, etc.
  • the blade 12 is first inserted into the drive shaft 13 and at the same time is brought into close contact with the rotation guide member 11. Then, when the screw hole 25 of the fixing part 20 is screwed to the driving shaft 13, one side of the support part 30 comes into close contact with the outer surface of the blade 12. Then, when a manual tool is fastened to the locking and unlocking guide piece 21 and the fixing part 20 is tightened to the drive shaft 13, the support part 30 is closely fixed to the blade 12.
  • the blade 12 is rotated at a predetermined RPM by the drive shaft 13 that receives the driving force of the grinder 10, and at the same time, the fixing part 20 and the support part 30 are rotated together. Then, as the blade 12 contacts the surface, the RPM (rotation speed) is momentarily reduced, and the support portion 30 rotates 10° to 30° in the rotation direction of the blade 12, as shown in FIG. 5. As the blade 12 is wound more, the support portion 30 is more firmly fixed. In this way, when the support portion 30 is wound at about 10° to 30°, the bearing 40 rolls along the rotation support groove 24 and the rotation guide groove 31. At this time, the fixing part 20 along the drive shaft 13 is not tightened and maintains its initially fixed state.
  • the fixing part 20 and the support part 30 together with the blade 12 are firstly fixed to the drive shaft 13, and then the blade 12 is secondarily fixed by the support part 30 during the polishing operation. As a result, the vibration of the blade 12 can be reduced.
  • the blade fastener for a grinder of the present invention does not require repeated description, and a plurality of fastening guide grooves 26 are formed recessed in the upper surface of the fixing part 20. .
  • the fastening guide groove 26 is inserted with the protrusion of a spanner to induce locking and unlocking of the drive shaft 13 and the fixing part 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

La présente invention se rapporte à un outil de fixation de lame pour un broyeur, dans lequel, après l'installation de l'outil de fixation sur la lame d'un arbre d'entraînement de broyeur, une partie de fixation n'est pas autorisée à s'enrouler davantage le long de l'arbre d'entraînement pendant une opération de polissage et peut ainsi être facilement séparée de l'arbre d'entraînement, ce qui permet un remplacement facile d'une lame de broyeur, et un tremblement de la lame pendant le fonctionnement peut être réduit à un minimum. L'outil de fixation de lame pour un broyeur selon la présente invention comprend : une partie de fixation couplée par vissage à un arbre d'entraînement pour le broyeur ; une partie de support ajustée dans la partie inférieure de la partie de fixation pour venir en contact étroit avec une lame de broyeur ; une pluralité de paliers roulant tout en tournant entre la partie de fixation et la partie de support ; et un élément de fixation installé sur la partie inférieure de la partie de fixation et pris par la partie de support.
PCT/KR2022/018940 2022-06-29 2022-11-28 Outil de fixation de lame pour un broyeur Ceased WO2024005281A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US18/281,223 US20250025978A1 (en) 2022-06-29 2022-11-28 Blade fastener for grinder
CN202280020324.4A CN117642252A (zh) 2022-06-29 2022-11-28 砂轮机用刀片紧固连接件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220079360A KR102496762B1 (ko) 2022-06-29 2022-06-29 그라인더용 날 체결구
KR10-2022-0079360 2022-06-29

Publications (1)

Publication Number Publication Date
WO2024005281A1 true WO2024005281A1 (fr) 2024-01-04

Family

ID=85224236

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2022/018940 Ceased WO2024005281A1 (fr) 2022-06-29 2022-11-28 Outil de fixation de lame pour un broyeur

Country Status (4)

Country Link
US (1) US20250025978A1 (fr)
KR (1) KR102496762B1 (fr)
CN (1) CN117642252A (fr)
WO (1) WO2024005281A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1199460A (ja) * 1997-09-29 1999-04-13 Yanase Kk 回転研磨具
KR20090021066A (ko) * 2007-08-24 2009-02-27 박성근 내측 면취기
KR101615727B1 (ko) * 2014-11-05 2016-04-26 (주)디비티 연마장치
KR101836378B1 (ko) * 2017-08-25 2018-03-08 김기흥 그라인더의 연마디스크 체결장치
KR102052502B1 (ko) * 2019-02-22 2019-12-05 김기찬 디스크 교체가 용이한 그라인더

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB825877A (en) * 1956-07-05 1959-12-23 Brown David Ind Ltd An improved construction of clamping-nut
DE3012836C2 (de) * 1980-04-02 1985-09-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung zum Festspannen der Schleifscheibe von Winkelschleifern
DE3841181A1 (de) * 1988-12-07 1990-06-13 Bosch Gmbh Robert Handwerkzeugmaschine mit einer mehrteiligen handbetaetigbaren schnellspanneinrichtung
DE4031725A1 (de) * 1990-10-06 1992-04-09 Bosch Gmbh Robert Schnellspanneinrichtung, insbesondere zum befestigen scheibenfoermiger werkzeuge an einer antriebsspindel einer handwerkzeugmaschine
JPH081805Y2 (ja) * 1991-03-20 1996-01-24 リョービ株式会社 工具の着脱装置
JP3280715B2 (ja) * 1992-08-31 2002-05-13 大治郎 中村 締付け用ネジ
JPH10231848A (ja) * 1997-02-17 1998-09-02 Jacobs Japan Inc 回転作業部材の緊締機構
US6273659B1 (en) * 1997-02-17 2001-08-14 Power Tool Holders Incorporated Locking mechanism for a rotary working member
DE20114382U1 (de) * 2001-09-01 2001-11-29 Müller, Heinrich, 57635 Wölmersen Befestigungsvorrichtung für scheibenförmige Bearbeitungswerkzeuge
KR101737890B1 (ko) 2016-05-23 2017-05-22 우삼균 절단휠 고정구 및 이를 포함하는 연마장치
KR101784968B1 (ko) * 2017-01-16 2017-10-13 주식회사 이엔큐원터치 핸드그라인더에 결합되어 사용되는 연마디스크 제조방법
DE102017218622A1 (de) * 2017-04-12 2018-10-18 Robert Bosch Gmbh Schleifmittelvorrichtung, insbesondere Schleiftellervorrichtung oder Stütztellervorrichtung
KR20180137700A (ko) * 2017-06-19 2018-12-28 박근식 그라인더 휠 고정모듈 및 그라인더 휠 고정방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1199460A (ja) * 1997-09-29 1999-04-13 Yanase Kk 回転研磨具
KR20090021066A (ko) * 2007-08-24 2009-02-27 박성근 내측 면취기
KR101615727B1 (ko) * 2014-11-05 2016-04-26 (주)디비티 연마장치
KR101836378B1 (ko) * 2017-08-25 2018-03-08 김기흥 그라인더의 연마디스크 체결장치
KR102052502B1 (ko) * 2019-02-22 2019-12-05 김기찬 디스크 교체가 용이한 그라인더

Also Published As

Publication number Publication date
CN117642252A (zh) 2024-03-01
US20250025978A1 (en) 2025-01-23
KR102496762B1 (ko) 2023-02-06

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