EP4227039A3 - Concrete grinder and concrete grinding apparatus - Google Patents

Concrete grinder and concrete grinding apparatus Download PDF

Info

Publication number
EP4227039A3
EP4227039A3 EP22212447.1A EP22212447A EP4227039A3 EP 4227039 A3 EP4227039 A3 EP 4227039A3 EP 22212447 A EP22212447 A EP 22212447A EP 4227039 A3 EP4227039 A3 EP 4227039A3
Authority
EP
European Patent Office
Prior art keywords
concrete
main body
drive ring
grinder
grinding apparatus
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.)
Granted
Application number
EP22212447.1A
Other languages
German (de)
French (fr)
Other versions
EP4227039A2 (en
EP4227039B1 (en
Inventor
Jingchao Wu
Bo Wu
Jian Cao
Luwen XU
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.)
Hangzhou Kinty Tool Manufacture Co Ltd
Original Assignee
Hangzhou Kinty Tool Manufacture 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 Hangzhou Kinty Tool Manufacture Co Ltd filed Critical Hangzhou Kinty Tool Manufacture Co Ltd
Publication of EP4227039A2 publication Critical patent/EP4227039A2/en
Publication of EP4227039A3 publication Critical patent/EP4227039A3/en
Application granted granted Critical
Publication of EP4227039B1 publication Critical patent/EP4227039B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B24B7/186—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with disc-type 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/04—Protective covers for the grinding wheel
    • B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
    • B24B55/052—Protective covers for the grinding wheel specially designed for portable grinding machines with rotating 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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain

Landscapes

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

Abstract

The invention relates to the technical field of concrete grinding equipment, in particular to a concrete grinder and a concrete grinding apparatus. The concrete grinder comprises a main body, wherein the lower end of the main body is rotatably connected with a grinding disk, the outer wall of the main body is rotatably connected with a drive ring, a dust-proof cover is coaxially mounted at the lower end of the drive ring, a plurality of drive grooves are formed on the inner wall of the drive ring, and the drive ring is equipped with an adjusting assembly for locking the position of the drive ring; and the concrete grinding apparatus comprises a main body and a bracket connected thereto, wherein the bottom of the bracket is equipped with at least two sliding wheels, a mounting frame is mounted on the bracket, limiting member are mounted on the mounting frame, an lifting plate is mounted on the main body, limiting grooves are formed on the lifting plate, the limiting members are inserted in the limiting grooves in a sliding manner, and the mounting frame is connected with a locking bolt in a threaded manner. The axial direction of the locking bolt is perpendicular to the extending direction of the limiting grooves. The invention can improve the precision of the concrete grinder.
EP22212447.1A 2022-01-19 2022-12-09 Concrete grinder and concrete grinding apparatus Active EP4227039B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210062697.XA CN114346792B (en) 2022-01-19 2022-01-19 Rough polishing machine and rough polishing device

Publications (3)

Publication Number Publication Date
EP4227039A2 EP4227039A2 (en) 2023-08-16
EP4227039A3 true EP4227039A3 (en) 2023-10-18
EP4227039B1 EP4227039B1 (en) 2024-08-07

Family

ID=81090446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22212447.1A Active EP4227039B1 (en) 2022-01-19 2022-12-09 Concrete grinder and concrete grinding apparatus

Country Status (2)

Country Link
EP (1) EP4227039B1 (en)
CN (1) CN114346792B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8914346U1 (en) * 1989-12-06 1990-01-25 Festo AG & Co, 73734 Esslingen Tool that can be driven by a motor to produce a rotary movement
EP2186600A1 (en) * 2008-11-12 2010-05-19 Collomix Rühr-und Mischgeräte GmbH Surface grinder, especially concrete grinder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101776301A (en) * 2010-02-09 2010-07-14 浙江工业大学 Spiral ascending mechanism for side-suction type environment-friendly stove
JP7033972B2 (en) * 2018-03-20 2022-03-11 株式会社東京精密 Polishing equipment
CN211890280U (en) * 2019-12-19 2020-11-10 深圳市永鑫达电子塑胶有限公司 Dustproof polishing machine
CN212444446U (en) * 2020-06-23 2021-02-02 刘金杨 Wall grinding device
CN214351350U (en) * 2021-02-07 2021-10-08 上海麟瑞建筑工程有限公司 Grinding machine
CN214723149U (en) * 2021-03-31 2021-11-16 河南华中建筑设计院有限公司 Wall grinding device for construction with dust absorption function

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8914346U1 (en) * 1989-12-06 1990-01-25 Festo AG & Co, 73734 Esslingen Tool that can be driven by a motor to produce a rotary movement
EP2186600A1 (en) * 2008-11-12 2010-05-19 Collomix Rühr-und Mischgeräte GmbH Surface grinder, especially concrete grinder

Also Published As

Publication number Publication date
EP4227039A2 (en) 2023-08-16
CN114346792A (en) 2022-04-15
CN114346792B (en) 2022-09-20
EP4227039B1 (en) 2024-08-07

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