US20040251730A1 - Ground surface cutting device - Google Patents

Ground surface cutting device Download PDF

Info

Publication number
US20040251730A1
US20040251730A1 US10/489,443 US48944304A US2004251730A1 US 20040251730 A1 US20040251730 A1 US 20040251730A1 US 48944304 A US48944304 A US 48944304A US 2004251730 A1 US2004251730 A1 US 2004251730A1
Authority
US
United States
Prior art keywords
cutting
advancing
actual value
ground
motor
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.)
Abandoned
Application number
US10/489,443
Other languages
English (en)
Inventor
Michael Steffen
Alfred Rettenweber
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.)
Wacker Construction Equipment AG
Original Assignee
Wacker Construction Equipment AG
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 Wacker Construction Equipment AG filed Critical Wacker Construction Equipment AG
Assigned to WACKER CONSTRUCTION EQUIPMENT AG reassignment WACKER CONSTRUCTION EQUIPMENT AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RETTENWEBER, ALFRED, STEFFEN, MICHAEL
Publication of US20040251730A1 publication Critical patent/US20040251730A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/045—Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
    • E01C23/0906—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges
    • E01C23/0926—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters
    • E01C23/0933—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters rotary, e.g. circular-saw joint cutters

Definitions

  • the invention pertains to a floor cutter according to the preamble of patent claim 1 .
  • the objective of the invention is to provide a floor cutter with which an optimum advancement rate can be guaranteed at all times.
  • a floor cutter according to the invention has a power detector and a controller that is coupled to the power detector.
  • the power detector detects an actual value for the power applied at the cutting tool or of the power output at the cutting motor, which is proportional to the power applied to the cutting tool.
  • the power detector can also monitor a parameter that depends on one of the above power values or corresponds to it some other way. This then provides another reliable indicator.
  • the actual value is sent to the controller, which compares it to a prescribed setpoint value, e.g. one that had been stored at the factory at assembly.
  • the controller changes the advancement rate in relation to a deviation of the actual and setpoint value.
  • the controller makes it possible to adjust the advancement rate automatically and not manually—either by means of the operator pushing the floor cutter or manually adjusting the advancement rate—through the controller.
  • the power applied to the cutting shaft i.e. the power applied to the cutting tool (cutting disc) or the output of the main drive motor (cutting motor) represents the control parameter.
  • the power detector has an rpm detector to detect an actual value for the rpm of the cutting tool or for the rpm of the cutting motor, which is proportional to the rpm of the cutting tool.
  • the rpm detector can also monitor a parameter that depends on one of the above rpm's or that corresponds to one of the rpm's and is thus also a reliable indicator.
  • the actual value of the rpm is used in this embodiment instead of the actual value for the power and is used as a control parameter for the controller.
  • a known torque characteristic of the cutting motor is that the rpm is a criterion that corresponds to the physical power output.
  • the rpm of the cutting shaft normally decreases or increases accordingly.
  • the corresponding rpm change is monitored by the rpm detector and is evaluated in the controller. The controller can then increase or decrease the advancement rate until the cutting shaft returns to the prescribed setpoint rpm.
  • the cutting motor has an rpm controller and/or limiter to maintain a prescribed rpm, the control activity of which can be evaluated by the power detector that determines the actual value for the power output of the cutting motor. This then can also provide a reliable indicator of the motor load when the motor rpm does not change.
  • the cutting motor is an internal combustion engine whose ignition stroke, i.e. the time difference between ignitions, is used as the criterion for the motor rpm and thus for the rpm of the cutting shaft and of the cutting tool.
  • the rpm detector monitors the actual value for the rpm based on the ignition stroke, which is then forwarded to the controller.
  • the cutting motor is an electric motor.
  • the instantaneous current draw of the cutting motor is evaluated as the criterion for its rpm.
  • the setpoint provided in the controller can be permanently adjusted at the factory. In another embodiment of the invention, however, it is possible for the operator to change the setpoint based on changing operating parameters, namely the material of the floor to be cut, the capacity of the cutting tool, the cutting depth or the nominal rpm of the cutting motor.
  • the controller operates an advancing motor provided in addition to the cutting motor and that is part of the advancing unit. This advancing motor moves the frame relative to the floor.
  • the controller can be switched on or off so that the operator still has the option as before of manually pushing the floor cutter or of fixing the advancement rate by hand to a value of his choice.
  • the automatic adjustment of the advancement rate reduces the danger of incorrect operation, in particular by inexperienced operators. Furthermore, manual control parts that used to be a necessity can be eliminated.
  • the automatic control system guarantees better economical and ecological operation of the floor cutter.
  • the single FIGURE shows a joint cutter used as a floor cutter.
  • a main drive motor is fastened to a frame 1 and serves as the cutting motor 2 .
  • the cutting motor 2 is an Otto motor that receives fuel from a tank 3 .
  • the cutting motor 2 drives a cutting disc 4 as the cutting tool by way of a cutting shaft, which is not shown. This cutting disc saws the floor to be worked on in a known manner.
  • the cutting disc 4 can, for example, be a diamond slitting disc.
  • Behind the tank 3 is a water feed system 5 that feeds water to cool the cutting disc 4 .
  • the rear wheels 6 can be driven by an advancing unit that is not shown, which has among other things an advancing motor, for example an electric motor, in addition to the cutting motor 2 .
  • the electric motor that serves as the advancing motor for the rear wheels can for example be powered by a generator that is driven by the cutting motor 2 .
  • One option is for the operator to push the joint cutter over the floor using a handle 9 .
  • the operator can change the advancement rate as desired, taking into account the effective advancing force in particular (as an indication of the resistance that opposes the cutting disc 4 during cutting) and the motor rpm, which he can hear.
  • an rpm detector and a controller are provided that enable the advancement rate to be automatically adjusted and changed.
  • the controller evaluates the rpm of the cutting shaft or evaluates a parameter that depends on this rpm, for example a parameter that is proportional to it.
  • other suitable parameters include the rpm of the cutting disc 4 or the motor rpm.
  • the motor rpm can be established by monitoring the ignition stroke, for example in an internal combustion engine.
  • the generation of the ignition sparks produces an electrical signal that can be evaluated by the rpm detector in a simple manner. This signal is a reliable criterion for the motor rpm.
  • the joint cutter has an electric motor as the cutting motor
  • the evaluation of the current draw can be applied as the criterion for determining the motor rpm, for example.
  • a setpoint value is saved at the factory that should be maintained when operating the floor cutter.
  • the motor should always be run at full load. It is of course possible to control the motor via rpm, but this not absolutely necessary.
  • the cutting motor rotates faster so that the rpm reaches the nominal rpm, which in any case is above the setpoint rpm. Then, the controller increases the advancement rate, which causes the cutting forces to increase, thus causing the cutting disc 4 to decelerate.
  • the advancement mechanism can be switched on or off in a known manner in order to prevent the floor cutter from getting away from the operator.
  • the controller can be switched off in order to let the operator either push the joint cutter by hand or—as in the prior art—to input a constant value for the advancement rate, which is then maintained independent of the actual loads.
  • the embodiment described above uses the rpm as a easy to monitor and evaluate criterion for the power output to be detected.
  • other parameters can be used that are a criterion for the power output or load of the cutting motor 2 or cutting disc 4 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Earth Drilling (AREA)
US10/489,443 2001-09-14 2002-09-12 Ground surface cutting device Abandoned US20040251730A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10145465.1 2001-09-14
DE10145465A DE10145465B4 (de) 2001-09-14 2001-09-14 Bodenschneidvorrichtung
PCT/EP2002/010254 WO2003025289A1 (de) 2001-09-14 2002-09-12 Bodenschneidvorrichtung

Publications (1)

Publication Number Publication Date
US20040251730A1 true US20040251730A1 (en) 2004-12-16

Family

ID=7699119

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/489,443 Abandoned US20040251730A1 (en) 2001-09-14 2002-09-12 Ground surface cutting device

Country Status (7)

Country Link
US (1) US20040251730A1 (de)
EP (2) EP1425475B1 (de)
JP (2) JP4109194B2 (de)
AT (1) ATE385528T1 (de)
DE (2) DE10145465B4 (de)
ES (1) ES2299605T3 (de)
WO (1) WO2003025289A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070194617A1 (en) * 2006-02-20 2007-08-23 Diamond Products, Limited Self-propelled concrete saw with forward motion speed control system
US20080230148A1 (en) * 2007-03-21 2008-09-25 Waggoner Van E Speed readiness indicator for a saw head in a tree feller
US20090095375A1 (en) * 2007-10-15 2009-04-16 Elliot Little Tree counter for a saw head in a tree feller
US20100071520A1 (en) * 2008-09-25 2010-03-25 Pellymonter Jason L Saw Speed Readiness System for Forestry Machine
WO2022066080A1 (en) * 2020-09-24 2022-03-31 Husqvarna Ab Floor sawing equipment with controllable supporting wheels
SE545688C2 (en) * 2020-09-24 2023-12-05 Husqvarna Ab Floor saw comprising a control unit to automatically control the floor saw and to determine whether an operator is in position to perform manual control
CN117661420A (zh) * 2024-02-01 2024-03-08 新乡市尧翔建筑工程有限公司 一种市政道路路面切割装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10145465B4 (de) * 2001-09-14 2005-12-01 Wacker Construction Equipment Ag Bodenschneidvorrichtung
ITPT20040011U1 (it) * 2004-10-08 2005-01-08 Imer Internat Spa Macchina da taglio a disco
DE102007018352A1 (de) 2007-04-18 2008-10-30 Wacker Construction Equipment Ag Bodenschneidvorrichtung mit automatischer Zielführung
US9259849B2 (en) 2007-05-24 2016-02-16 Clark Equipment Company Vehicle-mounted hydraulic slab cutter
BRPI0905569A2 (pt) * 2009-12-16 2011-08-16 Federica Arata equipamento para realizar cortes em rochas, pavimentos ou pisos e respectivo processo de funcionamento
CN108442223A (zh) * 2018-03-26 2018-08-24 林忠 一种灵活的道路设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988578A (en) * 1974-06-04 1976-10-26 Gebr. Eickhoff, Maschinenfabrik Und Eisengiesserei M.B.H. Method and apparatus for controlling the steplessly variable cutting rate and feed rate of mining machines
US4343513A (en) * 1980-08-25 1982-08-10 Gomaco, Inc. Method and power transmission system for operating a road planar machine
US4614305A (en) * 1984-02-24 1986-09-30 Mem Muszaki Intezet Apparatus for controlling and indicating speed and load of mobile chopping machine
US4662684A (en) * 1979-12-13 1987-05-05 H. B. Zachery Corporation Rotary rock and trench cutting saw
US4848845A (en) * 1988-03-16 1989-07-18 Ampsco Corporation Steerable self-regulating concrete cutting saw
US5241823A (en) * 1991-10-04 1993-09-07 Rineer Hydraulics, Inc. Hydraulic power system having first and second power converters
US5579753A (en) * 1992-02-14 1996-12-03 Chiuminatta; Edward R. Method for cutting wet concrete
US6921230B2 (en) * 2002-12-24 2005-07-26 Diamond Products, Limited Closed loop control system for pavement surfacing machine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59183902A (ja) * 1983-04-01 1984-10-19 Sumitomo Metal Ind Ltd ステンレス鋼製ｈ形鋼の製造方法
JPS6233908A (ja) * 1985-08-05 1987-02-13 椿森　信一 舗装面の斜め切りカツタ−
JPS6233909A (ja) * 1985-08-05 1987-02-13 日本ゼム株式会社 切削機
US4748966A (en) * 1986-11-05 1988-06-07 Ralph Kennedy Self-regulating concrete cutting saw
US4797025A (en) * 1988-03-14 1989-01-10 Ampsco Corporation Device for cutting a receptacle in pavement to receive a reflector
JPH0331839U (de) * 1989-08-02 1991-03-28
DE9005621U1 (de) * 1990-05-17 1990-07-19 Cedima Diamantwerkzeug- und Maschinenhandelsgesellschaft mbH, 3100 Celle Rissefräse
JPH0633418A (ja) * 1992-07-15 1994-02-08 Yanmar Diesel Engine Co Ltd コンクリートカッターの制御機構
JPH08177010A (ja) * 1994-12-21 1996-07-09 Komatsu Esuto:Kk 回転式切削機を備えた車両の走行装置
JPH09111715A (ja) * 1995-10-19 1997-04-28 Shinshu Kikai Seisakusho:Kk 舗装盤切断機
JPH1018220A (ja) * 1996-07-02 1998-01-20 Daiyamondo Giken:Kk 道路切断機用の金属配管等切断防止装置
NL1010360C2 (nl) * 1998-10-20 2000-04-25 Janssen & Krop Bv Inrichting en werkwijze voor het aanbrengen van sleuven in vloeren.
DE10145465B4 (de) * 2001-09-14 2005-12-01 Wacker Construction Equipment Ag Bodenschneidvorrichtung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988578A (en) * 1974-06-04 1976-10-26 Gebr. Eickhoff, Maschinenfabrik Und Eisengiesserei M.B.H. Method and apparatus for controlling the steplessly variable cutting rate and feed rate of mining machines
US4662684A (en) * 1979-12-13 1987-05-05 H. B. Zachery Corporation Rotary rock and trench cutting saw
US4343513A (en) * 1980-08-25 1982-08-10 Gomaco, Inc. Method and power transmission system for operating a road planar machine
US4614305A (en) * 1984-02-24 1986-09-30 Mem Muszaki Intezet Apparatus for controlling and indicating speed and load of mobile chopping machine
US4848845A (en) * 1988-03-16 1989-07-18 Ampsco Corporation Steerable self-regulating concrete cutting saw
US5241823A (en) * 1991-10-04 1993-09-07 Rineer Hydraulics, Inc. Hydraulic power system having first and second power converters
US5579753A (en) * 1992-02-14 1996-12-03 Chiuminatta; Edward R. Method for cutting wet concrete
US6921230B2 (en) * 2002-12-24 2005-07-26 Diamond Products, Limited Closed loop control system for pavement surfacing machine

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070194617A1 (en) * 2006-02-20 2007-08-23 Diamond Products, Limited Self-propelled concrete saw with forward motion speed control system
WO2007098310A2 (en) * 2006-02-20 2007-08-30 Diamond Products, Limited Self-propelled concrete saw with forward motion speed control system
WO2007098310A3 (en) * 2006-02-20 2008-02-07 Diamond Products Ltd Self-propelled concrete saw with forward motion speed control system
US20080150347A1 (en) * 2006-02-20 2008-06-26 Diamond Products, Limited Self-Propelled Concrete Saw With Forward Motion Speed Control System
US7434889B2 (en) * 2006-02-20 2008-10-14 Diamond Products, Limited Self-propelled concrete saw with forward motion speed control system
US20080230148A1 (en) * 2007-03-21 2008-09-25 Waggoner Van E Speed readiness indicator for a saw head in a tree feller
US20090095375A1 (en) * 2007-10-15 2009-04-16 Elliot Little Tree counter for a saw head in a tree feller
US7934523B2 (en) * 2007-10-15 2011-05-03 Deere & Company Tree counter for a saw head in a tree feller
US20100071520A1 (en) * 2008-09-25 2010-03-25 Pellymonter Jason L Saw Speed Readiness System for Forestry Machine
US7992603B2 (en) 2008-09-25 2011-08-09 Deere & Company Saw speed readiness system for forestry machine
WO2022066080A1 (en) * 2020-09-24 2022-03-31 Husqvarna Ab Floor sawing equipment with controllable supporting wheels
SE545688C2 (en) * 2020-09-24 2023-12-05 Husqvarna Ab Floor saw comprising a control unit to automatically control the floor saw and to determine whether an operator is in position to perform manual control
CN117661420A (zh) * 2024-02-01 2024-03-08 新乡市尧翔建筑工程有限公司 一种市政道路路面切割装置

Also Published As

Publication number Publication date
EP1425475A1 (de) 2004-06-09
WO2003025289A1 (de) 2003-03-27
EP1842964A3 (de) 2007-10-24
ES2299605T3 (es) 2008-06-01
EP1425475B1 (de) 2008-02-06
JP4109194B2 (ja) 2008-07-02
DE10145465A1 (de) 2003-04-17
DE50211652D1 (de) 2008-03-20
EP1842964A2 (de) 2007-10-10
ATE385528T1 (de) 2008-02-15
JP2008111334A (ja) 2008-05-15
JP2005503501A (ja) 2005-02-03
DE10145465B4 (de) 2005-12-01

Similar Documents

Publication Publication Date Title
US20040251730A1 (en) Ground surface cutting device
EP2205395B1 (de) Elektrowerkzeug mit einem antirückschlagsensor und verfahren dafür
US10709061B2 (en) Electric power equipment
CA1216917A (en) Speed regulator for power tool
US5572916A (en) Desk-top cutting machine
GB2436958A (en) Electric machine tool and method for operating the latter
CN101621273A (zh) 用于运行电动工具机的方法和用于电动工具机的驱动单元
US4454459A (en) Method of controlling the speed of a drill, hammer-drill, or rotary hammer and apparatus therefor
US10333441B2 (en) Method for regulating a speed of an electric motor of a power tool
RU2691442C2 (ru) Шлифовальный станок с управлением нагрузкой
US4524812A (en) Modulated forming machine
US4343513A (en) Method and power transmission system for operating a road planar machine
EP1188959A3 (de) Arbeitsfahrzeug mit Einrichtung zur Anpassung der Getriebeübersetzung bei Gefälle
US20200337226A1 (en) Power tool and control method for the same
CN1249303C (zh) 地面切割装置
CN111618364A (zh) 一种根据材料锯切面自动调节进刀速度的智能调速系统
US20220402110A1 (en) Method for operating a machine tool, and machine tool
EP3854556B1 (de) Verfahren zum betreiben eines handgeführten bearbeitungsgeräts und handgeführtes bearbeitungsgerät
JPH041159B2 (de)
SU1551761A1 (ru) Способ управлени обработкой поверхности дефибрерного камн
JPH05104399A (ja) モータ駆動型切断機の制御装置
JPS6490706A (en) Cutting method for semiconductor wafer

Legal Events

Date Code Title Description
AS Assignment

Owner name: WACKER CONSTRUCTION EQUIPMENT AG, DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:STEFFEN, MICHAEL;RETTENWEBER, ALFRED;REEL/FRAME:015850/0984;SIGNING DATES FROM 20040308 TO 20040309

Owner name: WACKER CONSTRUCTION EQUIPMENT AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:STEFFEN, MICHAEL;RETTENWEBER, ALFRED;SIGNING DATES FROM 20040308 TO 20040309;REEL/FRAME:015850/0984

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION