EP4227039A2 - Betonschleifmaschine und betonschleifvorrichtung - Google Patents

Betonschleifmaschine und betonschleifvorrichtung Download PDF

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Publication number
EP4227039A2
EP4227039A2 EP22212447.1A EP22212447A EP4227039A2 EP 4227039 A2 EP4227039 A2 EP 4227039A2 EP 22212447 A EP22212447 A EP 22212447A EP 4227039 A2 EP4227039 A2 EP 4227039A2
Authority
EP
European Patent Office
Prior art keywords
mounting
drive ring
drive
concrete
ring
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
English (en)
French (fr)
Other versions
EP4227039B1 (de
EP4227039C0 (de
EP4227039A3 (de
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/de
Publication of EP4227039A3 publication Critical patent/EP4227039A3/de
Application granted granted Critical
Publication of EP4227039B1 publication Critical patent/EP4227039B1/de
Publication of EP4227039C0 publication Critical patent/EP4227039C0/de
Active 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
    • 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

Definitions

  • the invention relates to the technical field of concrete grinding equipment, in particular to a concrete grinder and a concrete grinding apparatus.
  • a concrete grinder is a common specialized tool in the field of building finishing and decoration, which is mainly used to grind and polish the rough surfaces of concrete, cement pavements, cast-in-place floors, walls and the like. Due to the unevenness of the surfaces, they need to be ground by concrete grinders.
  • a concrete grinder comprises a main body, wherein a grinding disk is rotatably connected with the main body, a dust-proof cover is mounted on the outer wall of the main body, the dust-proof cover is a brush ring or a rubber ring, and the lower surface of the dust-proof cover is flush with that of the grinding disk which is positioned within the dust-proof cover.
  • the dust-proof cover is synchronously pressed against the ground, so that the dust-proof cover blocks gravels or dust to reduce pollution in the working environment when the grinding disk works on the ground.
  • the invention provides a concrete grinder and a concrete grinding apparatus so as to improve the precision of the concrete grinder.
  • the invention provides a concrete grinder, which adopts the following technical scheme:
  • a concrete grinder comprising a main body, wherein a grinding disk is rotatably connected with the lower end of the main body, a drive ring is coaxially connected with the outer wall of the main body, the drive ring and the grinding disk are coaxially mounted, a dust-proof cover is coaxially mounted at the lower end of the drive ring, a plurality of drive blocks are disposed on the outer wall of the main body, a plurality of drive grooves for sliding the drive blocks are formed on the inner wall of the drive ring, the drive grooves are in one-to-one correspondence with the drive blocks, one end of the drive grooves is upward while the other end is downward, and the drive ring is equipped with an adjusting assembly for locking the position of the drive ring.
  • the adjusting assembly when the grinding disk is worn, the adjusting assembly is opened and the drive ring is pushed, so that the drive blocks slide in the drive grooves, the drive ring drives the dust-proof cover to move in the extending direction of the drive grooves and the dust-proof cover moves along the axial direction of the drive ring.
  • the adjusting assembly is closed to lock the position of the drive ring and the position of the dust-proof cover is readjusted, whereby the deformation of the dust-proof cover is reduced, the main body and the grinding disk are less likely to incline and the precision of the concrete grinder is improved.
  • the adjusting assembly comprises a mounting base and a mounting band, wherein the mounting base is disposed on the outer wall of the drive ring, a retractable cavity is formed inside the mounting base, the mounting band passes through the mounting base and fits tightly around the outer wall of the drive ring, both ends of the mounting band are positioned in the retractable cavity, an adjusting bolt is disposed in the retractable cavity, an adjusting threaded hole for threaded connection of the adjusting bolt is formed on the wall of the retractable cavity, the adjusting threaded hole penetrates the outer wall of the mounting base, one end of the adjusting bolt protrudes out of the mounting base and is connected with a force-applying member, and at least one deformable groove is formed on the drive ring.
  • the force-applying member is rotated to drive the adjusting bolt to rotate, so that the adjusting bolt rotates around its own axis, moves in the adjusting threaded hole, and pulls two ends of the mounting band to tighten the mounting band inside the retractable cavity. Then the mounting band tightens the drive ring and the deformable grooves facilitate deformation, so that the inner wall of the drive ring presses against the outer wall of the main body, thereby completing the locking of the drive ring.
  • all the drive grooves extend in an inclined manner and are inclined in the circumferential direction of the drive ring.
  • the drive ring presses against the main body and is not likely to rotate, so that the drive ring is less likely to move and the stability of the drive ring is improved.
  • an anti-drop ring and a limiting boss are coaxially disposed on the outer wall of the drive ring, and the two ends of the mounting band along the axial direction of the drive ring respectively press against the anti-drop ring and the limiting boss.
  • the mounting band is positioned between the anti-drop ring and the limiting boss, so that the mounting band is not likely to separate from the drive ring and the stability of the mounting band can be improved.
  • the limiting boss is positioned at one end of the drive ring close to the ground, a socket for mounting the dust-proof cover is coaxially formed on the limiting boss, a mounting ring is mounted on the outer wall of the end of the dust-proof cover away from the ground, mounting bolts are connected in a threaded manner to the end of the limiting boss facing the ground,, and an abutment head for pressing the mounting ring against the socket is disposed on the mounting bolts.
  • the dust-proof cover when the dust-proof cover needs to be mounted, the dust-proof cover is pushed to be insert into the socket. Then the mounting ring is inserted into the socket, and the mounting bolts are all screwed so as to be in threaded connection with the limiting boss until the abutment heads are pressed against the mounting ring, so that the dust-proof cover is not likely to separate from the drive ring and is user-friendly in terms of mounting and operation.
  • a plurality of stiffeners are disposed on the wall of the socket.
  • the formation of the socket is not likely to influence the integral strength of the drive ring, and the integral strength of the drive ring is improved instead.
  • the invention provides a concrete grinding apparatus, which adopts the following technical scheme:
  • a concrete grinding apparatus comprising a concrete grinder and a bracket connected thereto, wherein at least two sliding wheels are mounted at the bottom of the bracket, the bracket is equipped with a mounting frame extending horizontally, the mounting frame is equipped with limiting members, a lifting plate having limiting grooves is disposed on the main body, the limiting members are inserted in the limiting grooves in a sliding manner, the extending direction of the limiting grooves is the same as the axial direction of the drive ring, the mounting frame is in threaded connection with a locking bolt which is used for pressing the lifting plate against the mounting frame, and the axial direction of the locking bolt is perpendicular to the extending direction of the limiting grooves.
  • the main body is mounted on the mounting frame, wherein the bracket is pushed and the sliding wheels are turned, so that the concrete grinder can be operated in a user-friendly way.
  • the dust-proof cover is adjusted by taking the above steps to allow the lower surface of the dust-proof cover to be flush with the lower surface of the grinding disk, the locking bolt is screwed so as not to press against the lifting plate, the main body is pulled to drive the lifting plate to move, the limiting members slide in the limiting grooves until the grinding disk is flush with and presses against the ground, and the locking bolt presses the lifting plate against the mounting frame, so that the main body is lifted or lowered, thus making it easy to operate the concrete grinder and improving the precision of the concrete grinder.
  • the mounting frame is equipped with a supporting wheel for pressing against the ground.
  • the stability of the bracket is improved, wherein the concrete grinder is not likely to incline even if it is pressed forward and downward in the actual grinding process, so that the operation of the grinding disk is not prone to be affected and the precision of the concrete grinder is improved.
  • the mounting frame is in threaded connection with an anti-drop bolt, the axial direction of the anti-drop bolt is the same as the extending direction of the limiting grooves, and the lower end of the anti-drop bolt presses against the upper surface of the lifting plate.
  • the anti-drop bolt when the main body has been lifted or lowered, the anti-drop bolt is screwed so as to move on the mounting frame until the anti-drop bolt is pressed against the lifting plate, wherein the main body and the lifting plate are not likely to move upward even if the concrete grinder is pressed forward and downward in the actual grinding process, so that the precision of the concrete grinder is improved.
  • the supporting wheel comprises a supporting base and a wheel body, wherein the wheel body is rotatably connected to the supporting base, a lifting threaded rod is rotatably connected to the supporting base, and the lifting threaded rod is in threaded connection with the mounting frame.
  • the lifting threaded rod when the supporting wheel is ready to be mounted, the lifting threaded rod is rotated so as to be in threaded connection with the mounting frame, and the lifting threaded rod is rotated so that the height of the supporting wheel is easy to adjust and the mounting frame is kept in a horizontal state.
  • the embodiments of the invention disclose a concrete grinder.
  • a concrete grinder comprising a main body 1, wherein a grinding disk 11 is rotatably connected to the lower surface of the main body 1, the grinding disk 11 and the main body 1 have a common axis, and the lower cross-section of the body 1 is circular according the embodiments of the invention.
  • a drive ring 2 is rotatably fitted around the outer wall of the main body 1, the drive ring 2 and the grinding disk 11 have a common axis, a plurality of drive blocks 22 are fixed to the outer wall of the main body 1, three drive blocks 22 are adopted in the embodiments of the invention, three drive grooves 21 are formed on the inner wall of the drive ring 2, the drive grooves 21 are in one-to-one correspondence with the drive blocks 22, and the drive grooves 21 extend along the outer wall of the drive ring 2.
  • One end of the drive grooves 21 starts from the upper surface of the drive ring 2 while the other end of the drive grooves 21 is close to the lower end of the drive ring 2, and all the drive grooves 21 extend in the same direction.
  • An adjusting assembly 3 is mounted around the drive ring 2 for locking the position of the drive ring 2
  • a dust-proof cover 23 is coaxially mounted at the lower surface of the drive ring 2
  • the grinding disk 11 is positioned within the dust-proof cover 23.
  • all the drive grooves 21 extend obliquely in the circumferential direction of the drive ring 2.
  • the adjusting assembly 3 When the grinding disk 11 is worn, the adjusting assembly 3 is opened, the drive ring 2 is turned around its own axis, and the drive blocks 22 slide in the drive grooves 21. Then the drive ring 2 moves along its own axis and forces the dust-proof cover 23 to move, and the adjusting assembly 3 is closed when the lower surface of the dust-proof cover 23 is flush with that of the grinding disk 11, thereby completing the adjustment of the dust-proof cover 23. Therefore, in the above process, additional pressure applied to the main body 1 is reduced, so that the main body 1 and the grinding disk 11 are not prone to incline under the pressure, thus preventing the grinding precision of the grinding disk 11 from being affected and improving the operating precision of the concrete grinder.
  • inclined drive grooves 21 stabilize the drive ring 2 more than vertical drive grooves 21, wherein the positions of the drive ring 2 and the dust-proof cover 23 can be locked only by limiting the movement of the drive ring 2 along its own axis, thereby preventing the drive ring 2 from moving the dust-proof cover 23 along its own axis in normal conditions.
  • the adjusting assembly 3 comprises a mounting base 31, a mounting band 32, an adjusting bolt 33 and a force-applying member 34.
  • the mounting base 31 is fixed to the outer wall of the drive ring 2, and a retractable cavity 35 is formed inside the mounting base 31, wherein the retractable cavity 35 extends along the diameter of the drive ring 2, and a through groove 36 which passes through the outer wall of the mounting base 31 is formed in each of the two opposite walls of the retractable cavity 35.
  • the mounting band 32 is tightly fitted around the drive ring 2, wherein the inner wall of the mounting band 32 is pressed against the outer wall of the drive ring 2, and both ends of the mounting band 32 pass through the through grooves 36 and extend into the retractable cavity 35.
  • the adjusting bolt 33 passes through the front and the rear ends of the mounting band 32, which are stacked with each other, and a mounting block 37 is disposed on the adjusting bolt 33, which is used for pressing the mounting band 32 against the head of the adjusting bolt 33.
  • An adjusting threaded hole 38 which penetrates the wall of the retractable cavity 35 is formed on the outer wall of the mounting base 31, wherein the adjusting threaded hole 38 extends along the radial direction of the drive ring 2 and the adjusting bolt 33 is in threaded connection to the adjusting threaded hole 38.
  • One end of the adjusting bolt 33 protrudes out of the mounting base 31 through the adjusting threaded hole 38, and the force-applying member 34 is fixed to the said end of the adjusting bolt 33.
  • Three deformable grooves 39 are formed on the inner wall of the drive ring 2, which pass through the outer wall of the drive ring 2 and extend along the axial direction of the drive ring 2.
  • the force-applying member 34 is turned to rotate the adjusting bolt 33 around its own axis, the adjusting bolt 33 works threadedly with the adjusting threaded hole 38 to move the adjusting bolt 33 away from the drive ring 2.
  • both ends of the mounting band 32 are strained by the adjusting bolt 33, so that the mounting band 32 which passes through the through grooves 36 draws towards the inside of the retractable cavity 35 and tightens the outer wall of the drive ring 2, whereby the deformable grooves 39 are deformed to bring the two opposite walls of the deformable grooves 39 closer to each other.
  • the inner wall of the drive ring 2 is tightly pressed against the outer wall of the main body 1, so that the drive ring 2 is not prone to rotate around its own axis and to move.
  • the outer wall of the drive ring 2 is coaxially connected with an anti-drop ring 4 and a limiting boss 5, wherein the anti-drop ring 4 is positioned above the limiting boss 5, the mounting band 32 is positioned between the anti-drop ring 4 and the limiting boss 5, and the anti-drop ring 4 and the limiting boss 5 are fitted respectively against the upper and lower ends of the mounting band 32, so that the mounting band 32 is not prone to separate from the drive ring 2, thereby increasing the stability of the mounting band 32 and improving the clamping effect of the mounting band 32 on the drive ring 2 as well.
  • deformable grooves 39 also extend through the anti-drop ring 4, so that the anti-drop ring 4 is less likely to influence the deformation of the drive ring 2.
  • the lower surface of the limiting boss 5 is flush with that of the drive ring 2, and a socket 51 is formed on both the lower surfaces of the limiting boss 5 and the drive ring 2, wherein the socket 51 is ring-shaped and shares the axis with the drive ring 2.
  • a mounting ring 52 is coaxially fixed to the outer wall at the upper end of the dust-proof cover 23, which is fitted into the socket 51 together with the mounting ring 52.
  • a plurality of mounting threaded holes 53 are formed on the lower surface of the limiting boss 5, and mounting bolts 54 are connected into the mounting threaded holes 53 in a threaded manner, wherein the mounting bolts 54 are circumferentially positioned around the axis of the drive ring 2 as the center, the mounting bolts 54 and the drive ring 2 have a common axial direction, and the bolt head of the mounting bolts 54 is an abutment head 55.
  • a plurality of stiffeners 56 are fixed onto the wall of the socket 51, which are circumferentially positioned around the axis of the drive ring 2, and the two ends of the stiffener 56 are respectively connected to the two opposite walls of the socket 51, so as to enhance the overall strength of the drive ring 2, wherein the presence of the socket 51 is not likely to affect the overall strength of the drive ring 2.
  • the principle of embodying a concrete grinder is as follows: when the grinding disk 11 is worn, firstly, the force-applying member 34 is loosened to rotate the adjusting bolt 33 around its own axis which is threadedly connected inside the adjusting threaded hole 38, thereby enabling the adjusting bolt 33 to move the two ends of the mounting band 32 towards the drive ring 2 and loosening the mounting band 32. So far, the deformable grooves 39 return to the natural status, and the force-applying member 34 is pulled to drive the adjusting bolt 33, the mounting band 32 and the drive ring 2 to rotate around the axis of the drive ring 2. Then the drive blocks 22 slide in the drive grooves 21, so that the drive ring 2 drives the dust-proof cover 23 to move along the axial direction of the drive ring 2 due to the obliqueness of the drive grooves 21.
  • the force-applying member 34 is tightened to move the adjusting bolt 33 in a direction away from the drive ring 2 and to draw the mounting band 32 which passes through the through groove 36 towards the inside of the retractable cavity 35, so that the outer wall of the drive ring 2 is tightened to deform the deformable grooves 39 and the inner wall of the drive ring is pressed against the outer wall of the main body 1, thereby completing the locking of the drive ring 2.
  • the embodiments of the invention also disclose a concrete grinding apparatus.
  • a concrete grinding apparatus comprising a concrete grinder defined in the above embodiments and a bracket 6 connected thereto, wherein the bracket 6 is vertically mounted, two sliding wheels 61 are mounted at the bottom of the bracket 6, a mounting frame 7 which comprises two parallel mounting rods 71 is fixed to the bracket 6 and extends horizontally, a connecting rod 72 connects the two mounting rods 71 to form an "H" shape between the mounting rods 71 and the connecting rod 72 in the embodiments, and the main body 1 is mounted between the two mounting rods 71.
  • the two opposite sides of the main body 1 respectively correspond to the two mounting rods 71, and the main body 1 is bolted to lifting plates 8 comprising a horizontal plate 81 in a horizontal state and a vertical plate 82 in a vertical state, wherein the horizontal plate 81 is connected with the main body and the vertical plate 82 is positioned at the side of one mounting rod 71 far away from the other mounting rod 71, the mounting rod 71 is bolted with a placement member 9 which is equipped with two limiting members 91 integrally, the vertical plate 82 is fitted adjacent to the placement member 9, and two limiting grooves 83 are vertically formed on the vertical plate 82.
  • the mounting rod 71 is connected horizontally to a locking bolt 101 in a threaded manner which passes through the placement member 9, and a sliding groove 84 is formed on the vertical plate 82 and is positioned between the two limiting grooves 83.
  • the upper surface of the mounting rod 71 is equipped with an anti-drop threaded hole 711 penetrating the lower surface of the mounting rod 71, and the anti-drop threaded hole is internally connected with an anti-drop bolt 102 in a threaded manner, wherein the anti-drop bolt 102 is vertically mounted and the lower surface of the anti-drop bolt 102 presses against the upper surface of the horizontal plate 81.
  • a supporting wheel 103 comprising a supporting base 104 and a wheel body 105 is mounted on the lower end of the connecting rod 72 , wherein the wheel body 105 is rotatably connected to the supporting base 104, the upper end of the supporting base 104 is rotatably connected to a lifting threaded rod 106 which is vertically mounted, and the lifting threaded rod 106 is in threaded connection with the connecting rod 72, thereby making it convenient for workers to mount the supporting wheel 103 on the connecting rod 72.
  • the lifting threaded rod 106 is rotated to force the supporting base 104 to move in a vertical direction, which makes it convenient to adjust the horizontal height of the supporting wheel 103, so that the bracket 6 and the mounting frame 7 are kept stable.
  • the supporting wheel 103 is positioned between the two sliding wheels 61 to form a triangle, and in the actual grinding process, even if the concrete grinder is pressed downward and forward, it is not likely to incline and to influence the operation of the grinding disk 11, thereby further improving the precision of the concrete grinder.
  • the principle of embodying a concrete grinding apparatus is as follows: after the grinding disk 11 is worn and separates from the ground, the above procedure is taken to adjust the dust-proof cover 23, and the locking bolt 101 is then unscrewed so that the bolt head of the locking bolt 101 moves away from the vertical plate 82. Then the main body 1 is moved downward to press the grinding disk 11 against the ground. And then the limiting members 91 slide in the limiting grooves 83, and the locking bolt 101 slides in the sliding groove 84.
  • the locking bolt 101 is tightened so as to be in threaded connection with the mounting rod 71 and to press against the vertical plate 82, and the vertical plate 82 is pressed tightly on the mounting rod 71, thereby completing the adjustment of the position of the main body 1, making it convenient for workers to push the bracket 6 to operate the concrete grinder horizontally on the ground and improving the precision of the concrete grinder.
  • the anti-drop bolt 102 is rotated so as to move inside the anti-drop threaded hole 711 until the lower end of the anti-drop bolt 102 presses against the upper surface of the horizontal plate 81, so that in the actual grinding process the anti-drop bolt 102 presses against the main body 1 and the lifting plate 8 to prevent them from shifting upward even if the concrete grinder is pressed downward and forward, thereby further improving the precision of the concrete grinder.

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  • 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)
EP22212447.1A 2022-01-19 2022-12-09 Betonschleifmaschine und betonschleifvorrichtung Active EP4227039B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210062697.XA CN114346792B (zh) 2022-01-19 2022-01-19 一种粗抛机及粗抛装置

Publications (4)

Publication Number Publication Date
EP4227039A2 true EP4227039A2 (de) 2023-08-16
EP4227039A3 EP4227039A3 (de) 2023-10-18
EP4227039B1 EP4227039B1 (de) 2024-08-07
EP4227039C0 EP4227039C0 (de) 2024-08-07

Family

ID=81090446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22212447.1A Active EP4227039B1 (de) 2022-01-19 2022-12-09 Betonschleifmaschine und betonschleifvorrichtung

Country Status (2)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119526162A (zh) * 2025-01-21 2025-02-28 中建五局(烟台)建设工程有限公司 一种大面积环氧地坪施工用打磨装置
CN120439145A (zh) * 2025-07-10 2025-08-08 福建兴翼智能装备股份有限公司 一种研磨头快拆式研磨机及其工作方法

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Publication number Priority date Publication date Assignee Title
DE8914346U1 (de) * 1989-12-06 1990-01-25 Festo AG & Co, 73734 Esslingen Motorisch zu einer Rotationsbewegung antreibbares Werkzeug
EP2186600B1 (de) * 2008-11-12 2011-11-02 Collomix Rühr-und Mischgeräte GmbH Oberflächenschleifer, insbesondere Betonschleifer
CN101776301A (zh) * 2010-02-09 2010-07-14 浙江工业大学 用于侧吸式环保灶的旋转上升机构
JP7033972B2 (ja) * 2018-03-20 2022-03-11 株式会社東京精密 研磨装置
CN211890280U (zh) * 2019-12-19 2020-11-10 深圳市永鑫达电子塑胶有限公司 一种防尘抛光机
CN212444446U (zh) * 2020-06-23 2021-02-02 刘金杨 一种墙壁打磨装置
CN214351350U (zh) * 2021-02-07 2021-10-08 上海麟瑞建筑工程有限公司 一种研磨机
CN214723149U (zh) * 2021-03-31 2021-11-16 河南华中建筑设计院有限公司 一种具有吸尘功能的建筑施工用墙面打磨装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119526162A (zh) * 2025-01-21 2025-02-28 中建五局(烟台)建设工程有限公司 一种大面积环氧地坪施工用打磨装置
CN120439145A (zh) * 2025-07-10 2025-08-08 福建兴翼智能装备股份有限公司 一种研磨头快拆式研磨机及其工作方法

Also Published As

Publication number Publication date
CN114346792A (zh) 2022-04-15
EP4227039B1 (de) 2024-08-07
EP4227039C0 (de) 2024-08-07
CN114346792B (zh) 2022-09-20
EP4227039A3 (de) 2023-10-18

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