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EP2561959B1 - mécanisme d'entraînement pour une ponceuse - Google Patents

mécanisme d'entraînement pour une ponceuse Download PDF

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Publication number
EP2561959B1
EP2561959B1 EP20110178295 EP11178295A EP2561959B1 EP 2561959 B1 EP2561959 B1 EP 2561959B1 EP 20110178295 EP20110178295 EP 20110178295 EP 11178295 A EP11178295 A EP 11178295A EP 2561959 B1 EP2561959 B1 EP 2561959B1
Authority
EP
European Patent Office
Prior art keywords
transmission
wheel
housing
wheels
grinder
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.)
Not-in-force
Application number
EP20110178295
Other languages
German (de)
English (en)
Other versions
EP2561959A1 (fr
Inventor
Ming-Tsung Tai
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.)
Cha Enterprise Co Ltd
Original Assignee
Cha Enterprise Co Ltd
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 Cha Enterprise Co Ltd filed Critical Cha Enterprise Co Ltd
Priority to EP20110178295 priority Critical patent/EP2561959B1/fr
Publication of EP2561959A1 publication Critical patent/EP2561959A1/fr
Application granted granted Critical
Publication of EP2561959B1 publication Critical patent/EP2561959B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power

Definitions

  • a conventional drive assembly for a grinder has a motor, a driving wheel, multiple driven wheels and a belt.
  • the motor has a rotating shaft.
  • the driving wheel is securely mounted around the shaft of the motor.
  • the belt is engaged the driving wheel and the driven wheels. When the shaft is rotated, the driven wheels are also rotated via the belt to proceed grinding.
  • the belt needs to be long enough so that the belt can be connected with all of the driven wheels.
  • the long belt does not rotate smoothly and causes energy waste. Consequently, the motor's load increases and the belt is also easily worn.
  • the present invention according to claim 1 provides a drive assembly for a grinder to mitigate the aforementioned problems.
  • the main objective of the invention is to provide a drive assembly for a grinder to reduce a motor's load.
  • a drive assembly for a grinder has a housing device, a drive device, multiple transmission devices and multiple grinding devices.
  • the housing device has a top, an outer housing and an inner housing rotatably mounted in the outer housing.
  • the drive device has a motor, a driving wheel and a driving band connected with the motor and the driving wheel.
  • a rotatable shaft of the motor is mounted through the center of the top of the housing device.
  • Each transmission device has a transmission wheel, multiple driven wheels and a transmission band. Each transmission band is engaged the driven wheels and the transmission wheel engaged the driving band.
  • a first embodiment of a drive assembly for a grinder in accordance with the present invention is mounted on a body 10 and comprises a housing device 20, a drive device 30, multiple transmission devices 40 and multiple grinding devices 50.
  • the housing device 20 is mounted securely on a bottom of the body 10.
  • the housing device 20 has an outer housing 20A and an inner housing 20B.
  • the outer housing 20A has a top and two threaded holes 24.
  • the threaded holes 24 are formed through the top of the outer housing 20A.
  • the inner housing 20B is rotatably mounted in the outer housing 20A and has a round upper cover 21, a round lower cover 22 and two positioning bolts 23.
  • the upper cover 21 has a top and two cover holes 211.
  • the cover holes 211 are respectively located at and formed through two opposite sides of the top of the upper cover 21 and respectively align with the threaded holes 24.
  • the lower cover 22 is connected with the upper cover 21.
  • the positioning bolts 23 are respectively and detachably mounted through the threaded holes 24 and are respectively inserted into the cover holes 211.
  • Each positioning bolt 23 in turn has an inserted rod 231, a first threaded surface 232 and a second threaded surface 233.
  • the inserted rod 231 of each positioning bolt 23 is detachably inserted into the cover hole 211 as shown in Fig. 9 .
  • the first threaded surface 232 and the second threaded surface 233 of each positioning bolt 23 are selectively screwed with the threaded hole 24.
  • each positioning bolt 23 is screwed into the threaded hole 24 and the inserted rod 231 of the positioning bolt 23 is located outside the outer housing 20A. Consequently, the inner housing 20B is disconnected from the outer housing 20A when the drive assembly does not operate or when the inner housing 20B rotates under its own inertia. Accordingly, dust can be prevented from entering the housing device 20 via the threaded holes 24 and the positioning bolts 23 can be prevented from being lost.
  • the inserted rods 231 are respectively inserted into the cover holes 211 and the first threaded surfaces 232 are respectively screwed into the threaded holes 24. Therefore, the outer housing 20A is rotated simultaneously with the inner housing 20B via the positioning bolts 23. With the positioning bolts 23 selectively inserted into the cover holes 211, the drive assembly has different grinding modes to be applied to different grounds.
  • the drive device 30 has a motor 31, a driving wheel 32, a driving band 33 and a band wheel 34.
  • the motor 31 is mounted securely on the top of the housing device 20 and has a rotatable shaft 311 mounted through the upper cover 21.
  • the driving wheel 32 is mounted in the housing device 20 and is securely mounted around the shaft 311 of the motor 31.
  • the driving band 33 is a belt, is engaged the driving wheel 32 and has an inner surface and an outer surface. Accordingly, the driving wheel 32 and the driving band 33 can be rotated when the shaft 311 is rotated. Additionally, the driving band 33 may be a chain and the driving wheel 32 may be a gear.
  • the band wheel 34 is rotatably connected with the upper cover 21, is engaged the outer surface of the driving band 33 and is capable of being slid to tighten or loosen the driving band 33.
  • the transmission devices 40 are rotatably mounted in the housing device 20.
  • Each transmission device 40 has a transmission wheel 41, multiple driven wheels 42, a transmission band 43 and an adjusting wheel 44.
  • transmission devices 40 are implemented.
  • Each transmission wheel 41 is engaged the driving band 33.
  • the inner surface of the driving band 33 is engaged outer surfaces of the transmission wheels 41.
  • the outer surface of the driving band 33 is engaged that of the driving wheel 32. Consequently, the rotated driving band 33 can drive the transmission wheels 41 to rotate.
  • each transmission wheel 41 has a first toothed surface 411 and a second toothed surface 412.
  • Each first toothed surface 411 is engaged the driving band 33 and has multiple teeth.
  • Each second toothed surface 412 has multiple teeth.
  • the teeth of each first toothed surface 411 outnumber those of the second toothed surface 412.
  • Each transmission wheel 41 has an axle 413 mounted through the bottom of the housing device 20. The difference in teeth number between the first toothed surface 411 and the second toothed surface 412 has a rotational speed reduction effect.
  • Each driven wheel 42 has an axial rod 421 mounted through the bottom of the housing device 20.
  • the transmission band 43 of each transmission device 40 is located below the driving band 33 and is engaged the transmission wheel 41 and the driven wheels 42 of the transmission device 40.
  • three driven wheels 42 of each transmission device 40 are implemented and are defined as two first wheels 42A and a second wheel 42B.
  • the second wheel 42B of each transmission device 40 is located between the first wheels 42A of the transmission device 40.
  • Each transmission band 43 has an inner surface and an outer surface.
  • the inner surface of the transmission band 43 of each transmission device 40 is engaged the first wheels 42A and the transmission wheel 41 of the transmission device 40.
  • the outer surface of the transmission band 43 of each transmission device 40 is engaged the second wheel 42B of the transmission device 40. Accordingly, rotational direction of each first wheel 42A is different from that of each second wheel 42B. Consequently, a surface of a work piece, stone for example, can be grinded with two different directions to have a great grinding effect.
  • an axis of each second wheel 42B is closer to an axis of the driving wheel 32 than an axis of each first wheel 42A is. With different distances from the driving wheel 32, a grinding area can be increased.
  • the transmission wheels 41 are arranged along a circumference at equal intervals.
  • the second wheels 42B are arranged along a circumference C2 at equal intervals.
  • the first wheels 42A are arranged along a circumference C1 at intervals.
  • a line where an axis of each transmission wheel 41 and the axis of the driving wheel 32 are located is defined as a first line L1.
  • a line where the axis of each second wheel 42B and the axis of the driving wheel 32 are located is defined as a second line L2.
  • An angle between each first line L1 and one of the second lines L2 closest to the first line L1 is 15°(degree). Because the transmission wheels 41, the first wheels 42A and the second wheels 42B are distributed evenly, the drive assembly can grind quite evenly.
  • the adjusting wheel 44 of each transmission device 40 is rotatably connected with the upper cover 21, is engaged the outer surface of the transmission band 43 of the transmission device 40 and is capable of being slid to tighten or loosen the transmission band 43.
  • the grinding devices 50 are mounted outside the bottom of the housing device 20 and are respectively connected with the transmission devices 40.
  • Each grinding device 50 has multiple grinding wheels 51 respectively and securely mounted around the axial rods 421 and the axles 413.
  • a second embodiment of the drive assembly for a grinder is substantially the same as the first embodiment except the transmission wheel 41A of each transmission device 40 has a third toothed surface 414A engaged the driving band 33 and the transmission band 43 of the transmission device 40 as shown in Fig. 5 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Claims (9)

  1. Mécanisme d'entraînement pour une ponceuse comprenant :
    un dispositif de boîtier (20) ayant un sommet et un fond ;
    un dispositif d'entraînement (30) relié au dispositif de boîtier (20) et comportant
    un moteur (31) monté fixement sur le sommet du dispositif de boîtier (20) et comportant un arbre rotatif (311) monté à travers le sommet du dispositif de boîtier (20) ;
    une roue d'entraînement (32) montée dans le dispositif de boîtier (20) et montée fixement autour de l'arbre du moteur (31) ; et
    une bande d'entraînement (33) mise en prise avec la roue d'entraînement (32) ;
    plusieurs dispositifs de transmission (40) montés de manière à pouvoir tourner dans le dispositif de boîtier (20), chaque dispositif de transmission (40) comportant
    une roue de transmission (41, 41A) mise en prise avec la bande d'entraînement (33) ;
    plusieurs roues entraînées (42), chaque roue entraînée (42) comportant une tige axiale (421) montée à travers le fond du dispositif de boîtier (20) ; et
    une bande de transmission (43) mise en prise avec la roue de transmission (41) et les roues entraînées (42) ; et
    plusieurs dispositifs de ponçage (50) montés à l'extérieur du fond du dispositif de boîtier (20) et respectivement reliés aux dispositifs de transmission (40), chaque dispositif de ponçage (50) comportant plusieurs roues de ponçage (51) respectivement montées fixement autour des tiges axiales (421) des dispositifs de transmission (40), caractérisé en ce que :
    le dispositif de boîtier (20) comporte un boîtier extérieur (20A) et un boîtier intérieur (20A) monté de manière à pouvoir tourner dans le boîtier extérieur (20A) ; et
    l'arbre (311) du moteur (31) est monté à travers le centre du sommet du dispositif de boîtier (20).
  2. Mécanisme d'entraînement pour une ponceuse selon la revendication 1, dans lequel
    la roue de transmission (41) de chaque dispositif de transmission comporte
    une première surface dentée (411) mise en prise avec la bande d'entraînement (33) et comportant plusieurs dents ; et
    une deuxième surface dentée (412) mise en prise avec la bande de transmission du dispositif de transmission (43) et comportant plusieurs dents, dans lequel les dents de la première surface dentée (411) sont plus nombreuses que les dents de la deuxième surface dentée (412).
  3. Mécanisme d'entraînement pour une ponceuse selon la revendication 2, dans lequel
    trois roues entraînées (42) de chaque dispositif de transmission (40) sont mises en oeuvre et sont définies en tant que
    deux premières roues (42A) ; et
    une deuxième roue (42B) située entre les premières roues (42A), dans lequel un axe de chaque deuxième roue (42B) est plus près d'un axe de la roue d'entraînement (32) que ne l'est un axe de chaque première roue (42A).
  4. Mécanisme d'entraînement pour une ponceuse selon la revendication 3, dans lequel
    la bande d'entraînement (33) comporte
    une surface intérieure mise en prise avec des surfaces extérieures des roues de transmission (41) ; et
    une surface extérieure mise en prise avec la surface extérieure de la roue d'entraînement (32) ; et
    la bande de transmission (43) de chaque dispositif de transmission comporte
    une surface intérieure mise en prise avec les première roues (42A) et la roue de transmission (41) du dispositif de transmission (40) ; et
    une surface extérieure mise en prise avec la deuxième roue (42B) du dispositif de transmission (40).
  5. Mécanisme d'entraînement pour une ponceuse selon la revendication 4, dans lequel
    les roues de transmission (41) sont agencées le long d'une circonférence à des intervalles égaux ;
    les deuxièmes roues (42B) sont agencées le long d'une circonférence à des intervalles égaux ;
    les premières roues (41) sont agencées le long d'une circonférence à des intervalles ;
    une ligne, sur laquelle se trouvent un axe de chaque roue de transmission (41) et l'axe de la roue d'entraînement (32), est définie en tant que première ligne (L1) ;
    une ligne, sur laquelle se trouvent l'axe de chaque deuxième roue (42B) et l'axe de la roue d'entraînement (32), est définie en tant que deuxième ligne (L2) ; et
    un angle entre chaque première ligne (L1) et celle des deuxièmes lignes (L2) qui est la plus proche de la première ligne (L1) est de 15° (degrés).
  6. Mécanisme d'entraînement pour une ponceuse selon la revendication 5, dans lequel
    chaque roue de transmission (41) comporte un essieu (413) monté à travers le fond du dispositif de boîtier (20) ; et
    l'une des roues de ponçage (51) de chaque dispositif de ponçage (50) est montée fixement autour de l'essieu (413) du dispositif de transmission (41).
  7. Mécanisme d'entraînement pour une ponceuse selon la revendication 6, dans lequel
    quatre dispositifs de transmission (40) sont mis en oeuvre.
  8. Mécanisme d'entraînement pour une ponceuse selon l'une quelconque des revendications 1 à 7, dans lequel
    le boîtier extérieur (20A) comporte un sommet ; et
    un trou fileté (24) formé à travers le sommet du boîtier extérieur (20A) ; et
    le boîtier intérieur (20B) comporte
    un couvercle supérieur (21) comportant un sommet ; et
    un trou de couvercle (211) formé à travers le sommet du couvercle supérieur (21) et s'alignant avec le trou fileté (24) du boîtier extérieur (20A) ;
    un couvercle inférieur (22) relié au couvercle supérieur (21) ; et
    un boulon de positionnement (23) relié de manière détachable au trou fileté (24) et au trou de couvercle (211) et comportant
    une tige insérée (231) insérée de manière détachable dans le trou de couvercle (211) ;
    une première surface filetée ; et
    une deuxième surface filetée (232), dans lequel la première surface filetée et la deuxième surface filetée sont sélectivement vissées avec le trou fileté (24).
  9. Mécanisme d'entraînement pour une ponceuse selon la revendication 1, dans lequel
    la roue de transmission (41A) de chaque dispositif de transmission comporte une troisième surface dentée (413) mise en prise avec la bande d'entraînement (33) et la bande de transmission du dispositif de transmission (43).
EP20110178295 2011-08-22 2011-08-22 mécanisme d'entraînement pour une ponceuse Not-in-force EP2561959B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20110178295 EP2561959B1 (fr) 2011-08-22 2011-08-22 mécanisme d'entraînement pour une ponceuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110178295 EP2561959B1 (fr) 2011-08-22 2011-08-22 mécanisme d'entraînement pour une ponceuse

Publications (2)

Publication Number Publication Date
EP2561959A1 EP2561959A1 (fr) 2013-02-27
EP2561959B1 true EP2561959B1 (fr) 2013-10-09

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Family Applications (1)

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EP20110178295 Not-in-force EP2561959B1 (fr) 2011-08-22 2011-08-22 mécanisme d'entraînement pour une ponceuse

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EP (1) EP2561959B1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE540214C2 (en) 2016-06-03 2018-05-02 Htc Sweden Ab Floor grinding machine, method of operating floor
SE541067C2 (en) 2016-06-03 2019-03-26 Husqvarna Ab Floor grinding machine and method of setting a handle for a floor grinding machine
US11633831B2 (en) 2016-06-03 2023-04-25 Husqvarna Ab Grinding head for floor grinding machine comprising at least one belt pulley, floor grinding machines and methods
SE542092C2 (en) 2016-06-03 2020-02-25 Husqvarna Ab Grinding head for floor grinding machine and a floor grinding machine comprising such a grinding head
CN106181724A (zh) * 2016-09-26 2016-12-07 安阳合力创科冶金新技术股份有限公司 一种钢筋除鳞机
CN107971924A (zh) * 2017-12-18 2018-05-01 深圳远荣智能制造股份有限公司 一种磨头传动装置
CN110076663B (zh) * 2019-05-07 2024-04-19 常州市英杰工具有限公司 多盘打蜡机
KR102293991B1 (ko) * 2021-01-22 2021-08-27 (유) 천진기업 펠렛 코크스 성형 다이용 양방향 구동식 다이표면 복원헤드

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7241210B2 (en) * 2001-07-16 2007-07-10 Holland Industriele Diamantwerken B.V. Floor treating machine comprising individually driven discs
US7261623B1 (en) * 2001-07-23 2007-08-28 Onfloor Technologies, L.L.C. Wood floor sanding machine
DE602007004942D1 (de) * 2007-03-12 2010-04-08 Htc Sweden Ab Bodenbearbeitungsgerät
DE202007010059U1 (de) * 2007-07-17 2007-10-18 Jacob Löwer Inh. von Schumann GmbH & Co. KG Durchlaufschleifmaschine zum Bearbeiten einer Werkstückoberfläche

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