EP1431460A1 - Finisseur et élément chauffant - Google Patents

Finisseur et élément chauffant Download PDF

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Publication number
EP1431460A1
EP1431460A1 EP03025449A EP03025449A EP1431460A1 EP 1431460 A1 EP1431460 A1 EP 1431460A1 EP 03025449 A EP03025449 A EP 03025449A EP 03025449 A EP03025449 A EP 03025449A EP 1431460 A1 EP1431460 A1 EP 1431460A1
Authority
EP
European Patent Office
Prior art keywords
heating
heating element
carrier material
flat
conductor
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
EP03025449A
Other languages
German (de)
English (en)
Other versions
EP1431460B1 (fr
Inventor
Michael Heindtel
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.)
Joseph Voegele AG
Original Assignee
Joseph Voegele AG
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Filing date
Publication date
Application filed by Joseph Voegele AG filed Critical Joseph Voegele AG
Publication of EP1431460A1 publication Critical patent/EP1431460A1/fr
Application granted granted Critical
Publication of EP1431460B1 publication Critical patent/EP1431460B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/10—Heated screeds

Definitions

  • the invention relates to a road paver specified in the preamble of claim 1 Art and a heating element according to the preamble of claim 11.
  • working components In the case of a paver processing hot paving material, working components must be used be heated up until the paving material is no longer glued on inclines.
  • the temperature of the paving material is around 170 ° C. It will mostly heated before the start of installation and continued to be heated during installation.
  • the working components can be the screed plates in the screed Tamper strips, pressure strips or installation material containers.
  • at least one electric flat heating element on the heating area of the smoothing plate to be assembled by a three-phase generator of the paver with three-phase current is supplied.
  • Also in the tamper bar or an optional one Press bar is inserted at least one electrical flat heating element.
  • the known Flat heating element is e.g.
  • the flat heating element is conventionally placed on the smoothing plate with the sticking up from the smoothing plate Clamping screws and an overlying metal profile clamped.
  • the Tensioning screws must be arranged to the side of the heating element. A direct one The alley defined by the tensioning screws in the heating area is not heated possible.
  • each The heating element is a rigid hollow metal rod with an internal resistance coil.
  • the heating elements are the usual heating rods in this technology, each one heat the limited heating area with a relatively undefined heating pattern.
  • an electric radiator which has an elastic insert made of asbestos, around which an insulated resistance wire is wound.
  • the isolated Heating coil is surrounded by a jacket made of thin sheet metal, which is in a strong Metal shell is housed.
  • strong shell pressurized so that after releasing the pressure from the press the helix into the asbestos insert against the inner shell.
  • the invention has for its object a paver of the type mentioned Specify type or a heating element with which an optimized heating of the respective heating area is possible with only moderate power consumption.
  • a flat heating element can even be made in terms of its width, length and contour adapt even better to the heating area, thereby ensuring effective heat transfer already practically over the entire width of the heating element.
  • the heating effect the heating element can be uniform or variable over its length and width his. Variable means that in zones of the heating area in which more heat is required for a specific heating pattern than in other zones, by the heating element pro Unit area is also provided more heat. This can be done on the one hand the outline shape of the carrier material wrapped with the heating conductor while remaining the same Winding density and / or by varying the winding density of the heating conductor to reach.
  • the flat heating element is, so to speak, for the respective application or the heating area and the heating pattern desired in the heating area, the carrier material essentially determines the shape and size of the heating element and the heating conductor adapts to the conditions on the carrier material.
  • the Heating element is excellent for heating the screed of the screed Road paver suitable, with an optimal heating pattern already on the smoothing plate moderate power consumption can be achieved by the heating element, if necessary the intermediate element the heat is distributed over a greater width and / or length.
  • the Flat heating element is also for tamper bars or pressure bars or to be heated Suitable for containers.
  • At least a second (or another further) heating conductors can be provided on the carrier material, which can be activated optionally leaves. This can also be useful for reasons of redundancy, e.g. in the event of failure another heating conductor.
  • the heating conductor should have a ribbon-shaped cross-section so that it is comfortable and tight can be wrapped around the carrier material.
  • material for the Heating conductors are ideal, for example, tungsten or a tungsten alloy.
  • the heating conductor should be wrapped around the substrate so that the turns remain spaced apart.
  • the winding density can be over Length of the carrier material must be constant, so that the heating element approximately consistently provides the same heating output per unit area.
  • the winding density can be variable, i.e. that increased in zones If heat is required, the heating output per unit area is greater than in other areas of the heating element. If necessary. is at least in a zone with increased heat requirements another optionally activatable heating conductor is provided.
  • an insulation layer may be provided.
  • the insulation layer drives the heat, so to speak in the desired direction in the heating area.
  • the insulation layer can be in the heating element integrated and / or attached to an outside of the heating element his.
  • the lower cover plate can form a heat-distributing intermediate member.
  • a heat-distributing intermediate member under the lower cover plate to be placed.
  • the cover plates in the edge area of the heating element become structurally simple with one another tightly connected.
  • the edge of one is cut larger Cover plate wrapped around the edge of the other cover plate, and optionally soldered or welded or sealed in some other way.
  • Steel or aluminum is suitable for the cover plates.
  • the flat heating element can have a total thickness of only between 4.0 and 10.0 mm, expediently of only about 5 to 6 mm, with carrier material being essentially one uniform thickness between only 1.0 and 3.0 mm.
  • a flat heating element is also suitable for a smoothing plate of conventional size a length between 0.9 and 1.2 m, preferably of about 1.1 m, and a width from about 50 to 100 mm, preferably about 60 mm, the heating element for one Power consumption between 500 and 1000 watts, preferably only about 600 Watts.
  • the carrier material is at least one rectangular strip. However, it is quite conceivable to put several strips of the carrier material next to each other, and each Wrap strips with the or a heat conductor so that the ends of the heat conductor be led out on the same side of the heating element.
  • the heating element In terms of ease of maintenance and operational safety, it is appropriate to provide the heating element with a junction box, expediently on the side facing away from the heating area.
  • the junction box can have spacers or attached directly to the cover plate of the heating element.
  • a terminal block is provided around the ends of the heating conductor and connect a connection cable and the connection during maintenance or To be able to solve exchanges.
  • the connecting cable can be routed through the side be inserted into the junction box so that cleaning agents or others aggressive liquids do not stop there, but drain off immediately.
  • Connection cable feedthrough can be a conventional, heat-resistant cable gland serve in the position of use of the heating element on the working component is essentially horizontal.
  • the bushings for the heating conductor ends and / or the openings should be sealed with potting compound so that none aggressive media penetrate inside the heating element.
  • a paver F in Fig. 1 has a chassis 108 with front wheels 105 and rear wheels 106.
  • a bunker 113 is arranged on the chassis at the front end, behind which there is a diesel engine with a three-phase generator as the primary drive source 114 115 is located. Between the bunker 113 and the rear end of the chassis extends a longitudinal conveyor device 109, with the installation goods as a template 111 is placed on the floor behind the paver.
  • a transverse distribution device 110 is arranged, which makes the template 111 more uniform and spreads out sideways.
  • a screed 103 is towed on the side rails 104, which rides on the template 111 and forms a ceiling layer 112.
  • the screed 103 has underside smoothing plates 101, which with flat heating elements H be electrically heated. Furthermore, a tamper T is indicated, which oscillates with one driven tamper bar 102 processed the installation goods.
  • the tamper bar 102 can also be equipped with a heating element, not shown. With special Embodiments of screeds 103 can also use pressure bars (not shown) be provided, which are also heated with heating elements. It is also possible to heat containers of the paver F not shown with such heating elements.
  • the heating elements H are generated by the generator 115, for example with three-phase current provided.
  • the smoothing plate 101 shown in Fig. 2 is a steel plate on which a flat here Heating element H is mounted with tensioning screws 3. Push through the tensioning screws 3 Breakthroughs 4 of the heating element H.
  • the heating element H is approximately rectangular Stripes formed, for example, with a length of around 1.1 m and one Width of about 60 mm. Under the heating element H can be a heat-distributing intermediate member 1, e.g. a metal profile can be provided. A lies on the heating element H.
  • Metal profile 2 shown in dashed lines the smoothing plate 101 tensioned.
  • a junction box 6 is mounted on the heating element H, into which a connecting cable 7 is inserted horizontally.
  • the cross section of the flat heating element H in FIG. 3 is not to scale, but exaggerated for clarity.
  • the total height of the heating element H is only between 5 and about 10 mm.
  • a heating conductor L is spirally wound around a flat carrier material M.
  • the Backing material M for example the consistency of a cardboard plate and only one Has thickness of about 1.0 mm, has an outline shape that matches the desired heating area or the required heat or heating pattern of the working component to be heated can be adapted.
  • Insulating layers can be above and below the carrier material 8 may be provided. Furthermore, it is useful above thermal insulation 9 to be provided in order to specifically drive the heat down to the heating area.
  • This layer structure is formed by a lower cover plate 10 and an upper cover plate 11 covered, with an edge 12 of the lower cover plate 10 at the top the edges of the upper cover plate 11 are folded over and tightly attached to it.
  • the connection box 6 is indicated by dashed lines, the one with spacer elements 13 directly can be mounted on the upper cover plate 11. Thermal insulation (not shown) could also be provided in the side areas.
  • the lower cover plate 10 forms a heat-distributing intermediate member, so that, if necessary, on the separate Intermediate link 1 or 1 'can be omitted.
  • the junction box 6 with its spacers 13 expediently has a removable cover 6a and a horizontal one horizontal bushing 6b for the connecting cable 7. Inside the junction box 6, a terminal strip 14 indicated by dashed lines can be provided on the the heat conductor ends inserted into the connection box 6 and the connection cable 7 be connected to each other. After removing the cover 6a can be exchanged of the heating element H, the connection cable 7 can only be loosened and then in place and Place remain. If necessary. the heat conductor L is connected directly to the connecting cable 7. The junction box 6 then serves to define the heating conductor ends and that Connection cable, e.g. to keep tensile forces away from the heating conductor L
  • Fig. 5 shows that the heating conductor L in e.g. wrapped around the carrier material M. Windings 15 run between which there are intermediate distances 16. x means an area of higher turn density, while y an area of lower turn density shows. The openings 4 can, for example, through the carrier material run between the turns 15. In area X is the heating output per unit area larger than in the y range.
  • the heating conductor L could alternatively be in the longitudinal direction of the carrier material M are wrapped around it. Alternatively, at least a further, preferably selectively activatable heating conductor in turns 15 ' the carrier material M may be wound, e.g. allows a second heating level.
  • the heating conductor L is expediently a profiled heating wire with a rectangular one or oval band cross-section and a band width b between 1.0 and 5.0 mm and a tape thickness h between 0.1 and 0.5 mm.
  • the heating conductor L is with his Flat side placed on the backing material M and bent transversely to the band thickness h.
  • Fig. 7 indicates that the openings 4 alternatively by two side by side Strips of the carrier material M can be defined. Any streak or at least a strip has a cutout 17 on the edge as a surround of the opening 4.
  • the respective heating conductor L is wrapped around the cut edge, so that the area around the opening 4 is also heated.
  • the heating conductor ends are at 18 indicated.
  • a strip (or two adjacent strips) of the carrier material M are sufficient to with the uniform or varying winding of the Heating conductor or with more than one heating conductor a predetermined heating pattern in the heating area to create.
  • the heating power per unit area can be determined by the winding density be varied, or by the geometric outline shape of the carrier material M, and / or by means of at least one further heating conductor.
  • the carrier material M can in an appropriate shape to meet the requirements of the heating sector to take account of its shape. A narrower area of the Carrier material M with then shorter turns of the heating conductor yields one lower heating output than a wider area of the carrier material with longer ones Turns. Since the heating conductor L is wrapped around the carrier material, it adapts Heat conductor to any desired outline contour of the support material M.
  • the intermediate link 1 is a metal profile (steel or Light metal) or with a heat transfer medium, e.g. Thermal oil, filled Hollow body.
  • the heating rod is on the upper metal profile 2 and the clamping screws 3 stretched on the intermediate member 1 and the intermediate member 1 on the smoothing plate 101.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Central Heating Systems (AREA)
  • Road Paving Structures (AREA)
  • Road Paving Machines (AREA)
  • Surface Heating Bodies (AREA)
EP03025449A 2002-12-18 2003-11-05 Finisseur et élément chauffant Expired - Lifetime EP1431460B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20219641U 2002-12-18
DE20219641U DE20219641U1 (de) 2002-12-18 2002-12-18 Straßenfertiger und Heizelement

Publications (2)

Publication Number Publication Date
EP1431460A1 true EP1431460A1 (fr) 2004-06-23
EP1431460B1 EP1431460B1 (fr) 2008-09-17

Family

ID=7978109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03025449A Expired - Lifetime EP1431460B1 (fr) 2002-12-18 2003-11-05 Finisseur et élément chauffant

Country Status (3)

Country Link
US (1) US6963050B2 (fr)
EP (1) EP1431460B1 (fr)
DE (2) DE20219641U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004007088A1 (de) * 2004-02-13 2005-08-25 Holger Brosi Beheizter Seitenschuber für Asphaltdecken-Einbaumaschinen
CN102080351A (zh) * 2010-12-21 2011-06-01 三一重工股份有限公司 摊铺机、熨平板和振捣机构相位差的设置方法
WO2011124152A1 (fr) * 2010-04-08 2011-10-13 长沙中联重工科技发展股份有限公司 Structure de chambre de combustion de paveuse

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0115039D0 (en) * 2001-06-20 2001-08-08 Finning Uk Ltd Electrically heated paving screed
DE102008024083A1 (de) 2008-05-17 2009-11-26 Abg Allgemeine Baumaschinen-Gesellschaft Mbh Straßenfertiger
JP2011190587A (ja) * 2010-03-12 2011-09-29 Unix:Kk プレートコンパクタ
US8517630B2 (en) 2011-12-06 2013-08-27 Caterpillar Paving Products Inc. Screed plate arrangement and method of attaching a screed plate
US20140377003A1 (en) * 2013-06-21 2014-12-25 Caterpilla Paving Products Inc. Screed frame and plate
US9181662B2 (en) * 2013-07-02 2015-11-10 Caterpillar Paving Products Inc. Lower screed interfaces
US9588315B1 (en) 2014-03-28 2017-03-07 Daniel Ryan Turner Method and apparatus for deployment of a communication line onto a surface such as a roadway or pathway
EP3241947A1 (fr) 2016-05-02 2017-11-08 Joseph Vögele AG Poutre lisseuse comprenant un dispositif de fixation pour un élément chauffant
US10017905B2 (en) 2016-07-01 2018-07-10 Roadtec, Inc. Screed assembly for asphalt paving machine
US10866380B2 (en) * 2017-07-28 2020-12-15 Traxyl, Inc. Method and apparatus for deployment of a communication line onto a surface such as a roadway or pathway
US11028540B2 (en) * 2018-09-26 2021-06-08 Carlson Paving Products, Inc. Apparatus and method for a hold-down assembly
EP4179374B1 (fr) 2020-07-07 2026-04-08 Traxyl, Inc. Procédé et appareil de déploiement d'un corps tubulaire sur une surface
EP4283043A1 (fr) * 2022-05-25 2023-11-29 Joseph Vögele AG Dispositif isolant et combinaison d'une dame et d'un dispositif isolant

Citations (2)

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Publication number Priority date Publication date Assignee Title
DE460333C (de) 1928-05-26 Siemens Elektrowaerme Ges M B Elektrisches Heizelement mit einem den Heizwiderstand umgebenden Metallmantel
US6318928B1 (en) 2000-01-07 2001-11-20 Astec Industries, Inc. Method and apparatus for electrically heating a screed assembly in a paving machine

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US2487839A (en) * 1945-11-07 1949-11-15 Borg George W Corp Nonlinear resistance element
US2493542A (en) * 1947-07-29 1950-01-03 Mcgraw Electric Co Electric heating unit
JPH01211884A (ja) * 1988-02-19 1989-08-25 Matsushita Seiko Co Ltd 面状発熱体
JPH01281339A (ja) * 1988-05-09 1989-11-13 Matsushita Electric Works Ltd 暖房器
JP2592333B2 (ja) * 1989-08-29 1997-03-19 株式会社日立製作所 空気流量センサ素子及びその製造方法
JPH0420721A (ja) * 1990-05-15 1992-01-24 Toshiba Corp 加熱調理器
JPH0431576A (ja) * 1990-05-28 1992-02-03 Hitachi Cable Ltd 柱状構築物の雪害防止装置
EP0483621B1 (fr) * 1990-11-02 1997-01-08 Watlow Electric Manufacturing Company Assemblage de chauffage, en particulier sous forme de bande ou de ruban
JPH05290953A (ja) * 1992-04-10 1993-11-05 Matsushita Electric Ind Co Ltd 電気加熱装置
US5417516A (en) * 1993-07-20 1995-05-23 Universal Screed Inc. Electrically heated paving screed
JPH0792852A (ja) * 1993-09-20 1995-04-07 Canon Inc 画像形成装置の定着装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE460333C (de) 1928-05-26 Siemens Elektrowaerme Ges M B Elektrisches Heizelement mit einem den Heizwiderstand umgebenden Metallmantel
US6318928B1 (en) 2000-01-07 2001-11-20 Astec Industries, Inc. Method and apparatus for electrically heating a screed assembly in a paving machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004007088A1 (de) * 2004-02-13 2005-08-25 Holger Brosi Beheizter Seitenschuber für Asphaltdecken-Einbaumaschinen
WO2011124152A1 (fr) * 2010-04-08 2011-10-13 长沙中联重工科技发展股份有限公司 Structure de chambre de combustion de paveuse
CN102080351A (zh) * 2010-12-21 2011-06-01 三一重工股份有限公司 摊铺机、熨平板和振捣机构相位差的设置方法
CN102080351B (zh) * 2010-12-21 2012-10-10 三一重工股份有限公司 摊铺机、熨平板和振捣机构相位差的设置方法

Also Published As

Publication number Publication date
DE20219641U1 (de) 2003-02-27
EP1431460B1 (fr) 2008-09-17
US6963050B2 (en) 2005-11-08
US20040144765A1 (en) 2004-07-29
DE50310505D1 (de) 2008-10-30

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