SE521403C2 - Concrete logging machine and ways to expose reinforcement in a concrete surface - Google Patents

Concrete logging machine and ways to expose reinforcement in a concrete surface

Info

Publication number
SE521403C2
SE521403C2 SE0101306A SE0101306A SE521403C2 SE 521403 C2 SE521403 C2 SE 521403C2 SE 0101306 A SE0101306 A SE 0101306A SE 0101306 A SE0101306 A SE 0101306A SE 521403 C2 SE521403 C2 SE 521403C2
Authority
SE
Sweden
Prior art keywords
concrete
angle
seen
nozzles
attack
Prior art date
Application number
SE0101306A
Other languages
Swedish (sv)
Other versions
SE0101306L (en
SE0101306D0 (en
Inventor
Carl Aakesson Stroemdahl
Original Assignee
Conjet Ab
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 Conjet Ab filed Critical Conjet Ab
Priority to SE0101306A priority Critical patent/SE521403C2/en
Publication of SE0101306D0 publication Critical patent/SE0101306D0/en
Priority to AT02723016T priority patent/ATE413491T1/en
Priority to EP02723016A priority patent/EP1379734B1/en
Priority to JP2002579574A priority patent/JP4057918B2/en
Priority to DE60229731T priority patent/DE60229731D1/en
Priority to PCT/SE2002/000736 priority patent/WO2002081823A1/en
Publication of SE0101306L publication Critical patent/SE0101306L/en
Publication of SE521403C2 publication Critical patent/SE521403C2/en

Links

Classifications

    • 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
    • E01C23/12—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
    • E01C23/128—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with hydrojets

Abstract

A concrete cutting machine for remoting the upper layer of a concrete layer and free the outmost layer of reinforcement bars in the concrete, comprises a vehicle (11) with a transverse feed beam (22) that carries a carrier with two water jet nozzles (31, 32) mounted together on an elongated holder (30). The holder (30) is swingable about an axis transverse to the feed beam so as to provide for an angle of attack of the jets in both carrier moving directions when the carrier is reciprocated along the feed beam in concrete cutting sweeps. The holder (30) is also oscillated transverse to the feed beam. The angle between the jets is between (10 and 50) degrees as seen in the plane of oscillations and this provides for a freeing of the reinforcing rods whatever directions they have.

Description

521 403 2 Uppfinningen definieras därvid av patentkraven. The invention is defined by the claims.

Kort beskrivning av ritningarna o Figur 1 visar, sett ovanifrån, en maskin med vilken sättet enligt uppfinningen kan utföras. o Figur 2 visar maskinen i figur 1 i sidovy. o Figur 3 visar förstorat främre delen av figur 2. o Figur 4 är en förstorad perspektivvy av två munstycken visade i figur 2. o Figur 5 är en vy av munstyckena visade i figur 3 sedd från munstyckenas ändar.Brief description of the drawings o Figure 1 shows, seen from above, a machine with which the method according to the invention can be performed. o Figure 2 shows the machine in figure 1 in side view. o Figure 3 shows the enlarged front part of fi gur 2. o Figure 4 is an enlarged perspective view of two nozzles shown in figure 2. o Figure 5 is a view of the nozzles shown in figure 3 seen from the ends of the nozzles.

Detaljerad beskrivning av visat och föredraget exempel på uppfinningen Maskinen visad i figurerna 1-2 består av en vagn 11 som har två framhjul 12,13 med inbyggda motorer 14,15 och den är styrbar med sina bakhjul 16,17. Maskinen har en pelare 18 som är roterbar kring en axel I och den utgör gejderför en bärare 20.Detailed description of the shown and preferred example of the invention The machine shown in Figures 1-2 consists of a carriage 11 which has two front wheels 12,13 with built-in motors 14,15 and it is steerable with its rear wheels 16,17. The machine has a pillar 18 which is rotatable about an axis I and it forms a guide for a carrier 20.

Bäraren 20 bär ett fäste 21 för en matarbalk eller gejder 22 som är vinkelrät mot en axel ll kring vilken matarbalken kan roteras. Detta arrangemang ger stor frihet i placering av matarbalken mot betongytor i olika lägen.The carrier 20 carries a bracket 21 for a feed beam or guide 22 which is perpendicular to an axis 11 around which the feed beam can be rotated. This arrangement gives great freedom in placing the feed beam against concrete surfaces in different positions.

Matarbalken 22 bär en löpvagn 23 med fyra hjul 24 och löpvagnen har en inbyggd motor med kugghjul i ingrepp med en kuggstång 25 på matarbalken. Löpvagnen 23 bär en långsträckt hållare 30 för två sprutmunstycken 31,32. Matarbalken 22 har en skyddskåpa 33 med gummikjol 34 och hållaren 30 sträcker sig ner i skyddskåpan genom en slits 35 bildad av gummitätningar 36,37.The feed beam 22 carries a trolley 23 with four wheels 24 and the trolley has a built-in motor with gears engaged with a rack 25 on the feed beam. The trolley 23 carries an elongate holder 30 for two spray nozzles 31,32. The feed beam 22 has a protective cover 33 with a rubber skirt 34 and the holder 30 extends down into the protective cover through a slot 35 formed by rubber seals 36,37.

Hållaren 30 är svängbar kring en axel Ill med hjälp av en hydraulcylinder 27 för att ge munstyckena lämplig angrepps- eller attackvinkel på matarbalken när vagnen går åt ena hållet längs matarbalken såväl som när den går åt andra hållet. Dessutom är en motor 28 anordnad att oscillera hållaren 30 kring en axel IV vinkelrät mot axeln lll i figur 5 och hållarens 30 överdels mittläge såväl som dess ändlägen är indikerade i figur 2. 521 403 3 Figur 4 visar sett snett uppifrån i perspektiv nedre delen 40 av hållaren 30 med de två munstyckena 31,32. Denna del 40 är skruvad fast på hållarens 30 huvuddel och den är grenad i två grenar 41,42 som är vridna runt varandra och har munstyckena skruvade till sina ändar. Figur 5 visar munstyckena 31,32 underifrån. l figur 3 visas munstyckena anordnade ungefär på rad utmed svepriktningen. Tvillingmunstyckena 31,32 osciileras gemensamt och angriper betongen i olika vinkel sett i oscillationens riktning. När de oscilleras kommer de att i varje svep avverka en bana betong i vilken båda munstyckenas strålar angriper en central del av banan och ena munstyckets stråle angriper endast ena ytterdelen av banan och det andra munstyckets stråle angriper endast den andra ytterdelen. Mellan svepen stegar man i mindre steg än banans bredd så att man bearbetar varje del av betongen flera gånger. Banbredden kan exempelvis vara 15 cm och stegen vara mindre än halva banbredden exempelvis en tredjedel därav. Vinkeln mellan strålarnas attackriktning sett i oscillationsriktningen bör vara mellan 10 och 40 grader. l det visade exemplet på tvillingmunstyckena 31,32 har munstyckena också olika attackvinkel i svepriktningen, men eftersom man svänger hela munstyckshållaren mellan svepen så kan munstyckena ha samma attackvinkel i svepriktningen särskilt om man stegar mindre än halva banbredden.The holder 30 is pivotable about an axis III by means of a hydraulic cylinder 27 to give the nozzles a suitable angle of attack or attack on the feed beam when the carriage moves in one direction along the feed beam as well as when it moves in the other direction. In addition, a motor 28 is arranged to oscillate the holder 30 about an axis IV perpendicular to the axis III in Figure 5 and the upper position of the holder 30 as well as its end positions are indicated in Figure 2. Figure 4 shows obliquely from above in perspective the lower part 40 of the holder 30 with the two nozzles 31,32. This part 40 is screwed onto the main part of the holder 30 and it is branched into two branches 41, 42 which are rotated around each other and have the nozzles screwed to their ends. Figure 5 shows the nozzles 31,32 from below. Figure 3 shows the nozzles arranged approximately in a row along the sweeping direction. The twin nozzles 31,32 are oscillated together and attack the concrete at different angles seen in the direction of the oscillation. When oscillated, they will in each sweep cut a web of concrete in which the jets of both nozzles attack a central part of the web and the jet of one nozzle attacks only one outer part of the web and the jet of the other nozzle attacks only the other outer part. Between the sweeps, you step in smaller steps than the width of the web so that you process each part of the concrete several times. The web width may, for example, be 15 cm and the steps be less than half the web width, for example one third thereof. The angle between the direction of attack of the beams seen in the direction of oscillation should be between 10 and 40 degrees. In the example shown of the twin nozzles 31,32, the nozzles also have different angles of attack in the sweeping direction, but since you swing the entire nozzle holder between the sweeps, the nozzles can have the same angle of attack in the sweeping direction, especially if you step less than half the width.

Det kan dock vara en fördel att ha en vinkel på mellan 5 och 20 grader mellan munstyckena sett i svepriktningen såsom visas.However, it can be an advantage to have an angle of between 5 and 20 degrees between the nozzles seen in the sweeping direction as shown.

Det kan vara en nackdel att inte ha munstyckena i bredd sett i svepriktningen eftersom det ena munstycket då inte avverkar ända ut ända ut i kanten vid vändningen och stegningen. Man kan alternativt ha munstyckena i bredd i Y-form.It can be a disadvantage not to have the nozzles in width seen in the sweeping direction because one of the nozzles then does not cut all the way to the edge during the turning and stepping. You can alternatively have the nozzles in width in Y-shape.

Nackdelen blir att deras avverkning då inte överlappar så mycket i oscillationsriktningen. Om stegen är små i förhållande till banbredden erhållen av oscillationen har emellertid detta mindre betydelse. I detta fall kan de också ha samma eller olika attackvinkel i svepriktningen.The disadvantage is that their felling then does not overlap so much in the direction of oscillation. However, if the steps are small in relation to the web width obtained by the oscillation, this is of less importance. In this case, they can also have the same or different angle of attack in the sweeping direction.

Munstyckshållarens attackvinkel kan lämpligen vara omkring 20 grader framåt i svepriktningen och oscillationen är normalt mindre än 15 grader, exempelvis 3-5 grader åt varje håll från en riktning vinkelrätt mot betongytan. Både oscillationsvinkel 521 405 4 och attackvinkel ärjusterbara så att man kan anpassa dem efter den betong som ska avverkas.The angle of attack of the nozzle holder may suitably be about 20 degrees forward in the sweeping direction and the oscillation is normally less than 15 degrees, for example 3-5 degrees in each direction from a direction perpendicular to the concrete surface. Both oscillation angle 521 405 4 and attack angle are adjustable so that you can adapt them to the concrete to be felled.

Maskinens arbetssätt ska nu kortfattat beskrivas Maskinens löpvagn körs åt ena hållet längs matarbalken med munstyckshållaren 30 i attackvinkel mot betongytan och munstyckshållaren oscilleras med en i förhållande till Iöpvagnens rörelse hög hastighet. Vagnen kan exempelvis röra sig med en hastighet av 5-10 m/s och oscillationsfrekvensen kan exempelvis vara 40-400 dubbelslag per minut. I anslutning till att vagnen når sitt ändläge stegas hela maskinen fram ett steg som är mindre än den banbredd i avverkning som oscillationen ger. l samband därmed svängs munstyckshållaren 30 till att ge en attackvinkel i den nya svepriktningen. Genom att man har två munstycken med olika attacksvinkel i osclllationsriktningen erhåller man en förbättrad friläggning av armeringsjärn i betongen oavsett i vilken riktning armeringsjärnen ligger.The operation of the machine will now be briefly described. The machine's trolley is driven in one direction along the feed beam with the nozzle holder 30 at an angle of attack to the concrete surface and the nozzle holder is oscillated at a high speed in relation to the movement of the trolley. The carriage can, for example, move at a speed of 5-10 m / s and the oscillation frequency can be, for example, 40-400 double beats per minute. In connection with the wagon reaching its end position, the entire machine is stepped forward by a step that is smaller than the path width in felling that the oscillation provides. In connection therewith, the nozzle holder 30 is pivoted to give an angle of attack in the new sweeping direction. By having two nozzles with different angles of attack in the direction of oscillation, an improved exposure of reinforcing bars in the concrete is obtained, regardless of the direction in which the reinforcing bars lie.

Claims (8)

1. Patentkrav 1. . . . . .- 521 405 5 Sätt att frilägga armeringen i en flat betongyta, exempelvis en brobana, genom att spruta högtrycksvatten genom ett munstycke (31,32) som hålls nära betongytan och förs fram och åter i parallella svep samtidigt som det oscilleras i ett plan tvärs svepriktningen och stegas fram och svängs mellan svepen så att det åt båda håll hålls i en angreppsvinkel mot betongen, kännetecknat av att man använder två munstycken (31,32) som sveps och oscilleras tillsammans och hålls l vinkel relativt varandra så att strålarna angriper betongen i olika vinkel sett i oscillationens riktning, varvid skillnaden i strålarnas vinkel mot betongytan hålls konstant under svepen sett i oscillationens riktning.Claims 1.. . . . 521 405 5 Methods of exposing the reinforcement in a flat concrete surface, for example a bridge deck, by spraying high-pressure water through a nozzle (31,32) held close to the concrete surface and reciprocating in parallel sweeps while oscillating in a plane across the sweeping direction and is stepped forward and pivoted between the sweeps so that it is held in both directions at an angle of attack with the concrete, characterized in that two nozzles (31,32) are used which are swept and oscillated together and held at an angle relative to each other so that the beams different angles seen in the direction of the oscillation, whereby the difference in the angle of the beams towards the concrete surface is kept constant during the sweep seen in the direction of the oscillation. 2. Sätt enligt patentkrav 1, kännetecknat av att skillnaden i strålarnas angreppsriktning är mellan 10 och 40 grader sett i oscillationens riktning.Method according to claim 1, characterized in that the difference in the direction of attack of the beams is between 10 and 40 degrees seen in the direction of the oscillation. 3. Sätt enligt patentkrav 1 eller 2, kännetecknat av att munstyckena (31 ,32) hålls så att strålarna angriper betongen i olika vinkel sett i svepriktningen.Method according to claim 1 or 2, characterized in that the nozzles (31, 32) are held so that the jets attack the concrete at different angles seen in the sweeping direction. 4. Sätt enligt patentkrav 3, kännetecknat av att skillnaden mellan strålarnas riktningar är mindre än 20 grader sett i svepriktningen.Method according to claim 3, characterized in that the difference between the directions of the beams is less than 20 degrees seen in the sweeping direction. 5. Sätt enligt patentkrav 4, kännetecknat av att vinkeln mellan strålarnas riktningar är mer än 5 grader sett i svepriktningen.Method according to claim 4, characterized in that the angle between the directions of the beams is more than 5 degrees seen in the sweeping direction. 6. Sätt enligt något av föregående patentkrav, kännetecknat av att man i varje svep avverkar en bana betong i vilken båda munstyckenas (31,32) strålar angriper en central del av banan och ena munstyckets stråle angriper endast ena ytterdelen av banan och det andra munstyckets stråle angriper endast den andra ytterdelen, varvid man mellan svepen stegar i mindre steg än banans bredd. 521 403 éMethod according to one of the preceding claims, characterized in that in each sweep a web of concrete is felled in which the jets of both nozzles (31, 32) attack a central part of the web and the jet of one nozzle attacks only one outer part of the web and the other nozzle. beam attacks only the other outer part, stepping between the sweeps in smaller steps than the width of the web. 521 403 é 7. Betongavverkningsmaskin för avverkning av en betongyta och frlläggning av armering i betongen, innefattande en hjulburen vagn (11) med en tvärgående matningsbalk (22) som uppbär en löpvagn (23) med ett sprutmunstycke (31 ,32) som är svängbart kring en första axel (I)för att ge angreppssvinkel mot betongen åt båda håll när Iöpvagnen förs fram och åter i avverkande svep och svängbart kring en andra axel (II)för att vara oscillerande i ett plan tvärs matningsbalken , kännetecknad av att löpvagnen (23) uppbär två sprutmunstycken (31 ,32) som är gemensamt svängbara kring sagda axlar (I, II) och har en vinkel mellan sina sprutriktningar som är mellan 10 och 50 grader och konstant sett i oscillationens riktning.A concrete felling machine for felling a concrete surface and laying reinforcement in the concrete, comprising a wheeled trolley (11) with a transverse feed beam (22) supporting a trolley (23) with a spray nozzle (31, 32) which is pivotable about a first shaft (I) to provide an angle of attack with the concrete in both directions when the trolley is reciprocated in a sweeping sweep and pivotable about a second axis (II) to be oscillating in a plane across the feed beam, characterized in that the trolley (23) carries two spray nozzles (31, 32) which are jointly pivotable about said axes (I, II) and have an angle between their spray directions which is between 10 and 50 degrees and constantly seen in the direction of the oscillation. 8. Betongavverkningsmaskin enligt patentkrav 7, kännetecknad av att vinkeln mellan munstyckenas sprutriktningar är mindre än 20 grader sett i svepriktningen.Concrete felling machine according to claim 7, characterized in that the angle between the spray directions of the nozzles is less than 20 degrees seen in the sweeping direction.
SE0101306A 2001-04-09 2001-04-09 Concrete logging machine and ways to expose reinforcement in a concrete surface SE521403C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE0101306A SE521403C2 (en) 2001-04-09 2001-04-09 Concrete logging machine and ways to expose reinforcement in a concrete surface
AT02723016T ATE413491T1 (en) 2001-04-09 2002-04-09 METHOD AND MACHINE FOR PROCESSING A CONCRETE SURFACE
EP02723016A EP1379734B1 (en) 2001-04-09 2002-04-09 A method and a machine for working a concrete surface
JP2002579574A JP4057918B2 (en) 2001-04-09 2002-04-09 Method and machine for processing concrete surfaces
DE60229731T DE60229731D1 (en) 2001-04-09 2002-04-09 METHOD AND MACHINE FOR MACHINING A CONCRETE SURFACE
PCT/SE2002/000736 WO2002081823A1 (en) 2001-04-09 2002-04-09 A method and a machine for working a concrete surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0101306A SE521403C2 (en) 2001-04-09 2001-04-09 Concrete logging machine and ways to expose reinforcement in a concrete surface

Publications (3)

Publication Number Publication Date
SE0101306D0 SE0101306D0 (en) 2001-04-09
SE0101306L SE0101306L (en) 2002-10-10
SE521403C2 true SE521403C2 (en) 2003-10-28

Family

ID=20283770

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0101306A SE521403C2 (en) 2001-04-09 2001-04-09 Concrete logging machine and ways to expose reinforcement in a concrete surface

Country Status (6)

Country Link
EP (1) EP1379734B1 (en)
JP (1) JP4057918B2 (en)
AT (1) ATE413491T1 (en)
DE (1) DE60229731D1 (en)
SE (1) SE521403C2 (en)
WO (1) WO2002081823A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE525915C2 (en) * 2004-03-24 2005-05-24 Conjet Ab Concrete working machine has control unit for distribution valves in hydraulic lines of hydraulic motors, which is coupled to flow meters in other set of hydraulic lines of hydraulic motors
DE602005022111D1 (en) * 2005-01-05 2010-08-12 Aquajet Systems Holding Ab METHOD AND DEVICE FOR MOVING A RADIATOR
SE0801398L (en) * 2008-06-16 2009-08-04 Conjet Ab Machine for machining a surface
SE1300085A1 (en) * 2013-02-05 2014-04-15 Conjet Ab A unit for harvesting a surface with a high-pressure water jet
SE541458C2 (en) 2016-02-29 2019-10-08 Conjet Ab Water spray unit and way of felling a surface
JP6493850B2 (en) * 2016-07-04 2019-04-03 樋口 幸弘 Road surface crushing method using water jet nozzle device and water jet nozzle device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4854770A (en) * 1984-04-16 1989-08-08 Indescor Hydrodynamics Inc. Method and apparatus for removal of surface material
US4753549A (en) * 1986-08-29 1988-06-28 Nlb Corporation Method and apparatus for removing structural concrete
SE508821C2 (en) * 1996-10-08 1998-11-09 Aquajet Systems Holding Ab Apparatus and method for moving an object and use in material removal processing of a material layer, in particular a concrete layer

Also Published As

Publication number Publication date
JP4057918B2 (en) 2008-03-05
JP2004524462A (en) 2004-08-12
SE0101306L (en) 2002-10-10
DE60229731D1 (en) 2008-12-18
WO2002081823A1 (en) 2002-10-17
EP1379734B1 (en) 2008-11-05
SE0101306D0 (en) 2001-04-09
EP1379734A1 (en) 2004-01-14
ATE413491T1 (en) 2008-11-15

Similar Documents

Publication Publication Date Title
SE520866C2 (en) Ways to operate a concrete machining machine
US3423026A (en) Windshield cleaning device utilizing an oscillatory fluid stream
SE521403C2 (en) Concrete logging machine and ways to expose reinforcement in a concrete surface
US2576861A (en) Hydraulic barker with multiple nozzle oscillating linkage
SE502212C2 (en) Saw blade with liquid spreader
FI101277B (en) Vehicle wash
US4619551A (en) Device for removing degraded concrete
EP1730353B1 (en) A concrete working machine
EP0009011A1 (en) A concrete spraying apparatus
EP2318591B1 (en) Machine and method for treating a surface
SE524045E (en) Concrete logging machine and ways to expose reinforcement
SE1600071A1 (en) Water sprayers and ways to cut a surface
US8033641B2 (en) Method and a device for moving a jet member
JP3724702B2 (en) Self-propelled sprayer
JPH10136859A (en) Spray device for tea leaves
JP2022108135A (en) work machine
RU93040689A (en) MIDDLE DRIVE RADIATOR
SU1289405A1 (en) Apparatus for applying liquid to soil
SE460633B (en) MOBILE DEVICE MAKES CUTTING OF SMALL STEAM VEGETATION
SU483090A1 (en) Front Sprinkler
FI20176069A1 (en) Method and device for cutting treetops
JPH06253713A (en) Laterally tilting structure for blight-control nozzle
SE522109C2 (en) Machine for treating concrete surfaces, e.g. upper concrete layer on road bridge, has pipes connected to spray nozzles movable in rose pattern using cog wheel system
SU531552A1 (en) Machine for applying a protective coating on the internal surface of the pipeline
JPH0761333A (en) High-pressure water washing device

Legal Events

Date Code Title Description
NUG Patent has lapsed