WO2000009809A1 - Bohlenheizung für strassenfertiger - Google Patents
Bohlenheizung für strassenfertiger Download PDFInfo
- Publication number
- WO2000009809A1 WO2000009809A1 PCT/DE1999/002473 DE9902473W WO0009809A1 WO 2000009809 A1 WO2000009809 A1 WO 2000009809A1 DE 9902473 W DE9902473 W DE 9902473W WO 0009809 A1 WO0009809 A1 WO 0009809A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screed
- heater
- fluid
- shaft
- heating
- Prior art date
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
- 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
- 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
- E01C19/22—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 consolidating or finishing laid-down unset materials
- E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
- E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
- E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V40/00—Production or use of heat resulting from internal friction of moving fluids or from friction between fluids and moving bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V40/00—Production or use of heat resulting from internal friction of moving fluids or from friction between fluids and moving bodies
- F24V40/10—Production or use of heat resulting from internal friction of moving fluids or from friction between fluids and moving bodies the fluid passing through restriction means
-
- 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 screed heating for pavers, in particular for the laying of asphalt layers.
- Conventional pavers have a jacking unit with a filling and conveying device for the material to be installed, such as. B. gravel or asphalt, on the front. At the rear there is a screed for even dosing and compacting the paving material.
- the screed usually has a slide for metering the paving material, rammer for compacting the material and a screed body arranged behind the rammer for further compacting and planning the paving material.
- the screed When laying asphalt, the screed must be heated so that the asphalt does not stick.
- Particularly critical areas here are the base plate and the wear strip of the screed body as well as the tamper.
- the screed is heated with gas or diesel heating.
- air is heated with a burner and the hot air is fed into the screed body.
- Exhaust gases and safety aspects when handling gas are problematic here.
- gas heating is not permitted in some countries. It is also known to provide an electric heater.
- the object of the invention was therefore a screed heater for
- the screed heater should also have sufficient heating power and be self-regulated.
- the existing units can be used for heating, with sufficient mechanical energy being available via the existing hydraulic system.
- B. can be used with the help of a hydraulic motor.
- a fluid in a heating container can be used in two ways to convert mechanical energy into thermal energy.
- solid plates are placed in the heating tank between two disks. This creates a relative movement between the parallel aligned plates and disks. If there is a liquid in the intermediate space, the need to overcome the shear stresses creates friction and heat.
- the disks and plates are arranged vertically in the container. This enables a larger disk diameter and a higher heating output with a smaller number of disks can be achieved.
- Another alternative is to use a fluid using the so-called pressure / throttle principle.
- the fluid is pumped through a narrowed channel. Entropy develops on this channel in a known manner and heat is generated.
- the channel is advantageously arranged at the lower, front corner of the screed body in the vicinity of the wear strip and the tamper (s). Are on the wave
- Fluid is pumped into the channel.
- FIG. 1 shows a horizontal arrangement of the shaft with disks in the heating tank which is built into the screed body;
- Figure 2 Structure of a conventional screed;
- Figure 3 Coupling of two heating containers in a horizontal embodiment of the screed heating
- Figure 4 Vertical embodiment of the screed heating
- Figure 5 embodiment of the screed heating after the pressure
- FIG. 1 a horizontal arrangement of the screed heater 1 is shown.
- a Heating container 2 is provided, which is filled with a fluid.
- a shaft 3 is mounted horizontally, on which many disks 4 are mounted at short intervals. Between the disks 4 plates 5 are arranged, which are rigidly connected to the heating container 2.
- the space between the disks 4 and the plates 5 is filled with a highly viscous, temperature-resistant fluid.
- the shaft 3 with the disks 4 is guided out of the side of the heating container 2, so that the shaft 3 can be set in rotation. If the shaft 3 is rotated, the shear stresses in the fluid must be overcome. Work is carried out which leads to heating of the fluid and thus of the entire heating container 2.
- the torque required for rotation can be influenced via the number and diameter of the disks 4 and the viscosity of the fluid.
- An expansion tank not shown, can be attached to the upper side of the heating tank 2 so that the expansion of the fluid does not lead to an increase in pressure.
- the diameter of the disks 4 is rather small in relation to the length of the shaft 3.
- the disks 4 and plates 5 are preferably made of metal, but can also be made of other materials, e.g. Plastic.
- a conventional screed 6 is shown in FIG.
- the paving material is dosed with a metering slide 7 and then compressed with rammers 8.
- a preferably vibrating screed body 9 is arranged behind the tamper 8.
- the screed heater 1 is arranged at the front, lower end of the screed body 9, so that the wear strip 10 and the tamper 8 are also heated.
- FIG. 3 shows the arrangement of the individual heating containers 2 or the screed body 9 with the aid of a claw coupling 11.
- other types of coupling can also be used.
- the shaft must be led out of both sides of the heating container 2. This allows the width of the screed to be widened in a simple manner.
- FIG. 4 shows a vertical arrangement of the screed heater 1.
- the heating container 2 is again arranged in the screed body 9.
- a vertical shaft 3 is mounted in the heating container 2, to which a few disks 4 are attached. Between the disks 4, plates 5 are provided which are rigidly connected to the heating container 2.
- the intermediate space is filled with a highly viscous, temperature-resistant fluid.
- the shaft 3 is led out of the heating tank 2 at the top, so that the shaft 3 can be set in rotation. If the shaft 3 is rotated, then shear stresses in the fluid must also be overcome and work is done which leads to heating of the fluid and thus of the entire heating container 2.
- the diameter of the disks 4 is rather large in relation to the length of the shaft 3. The diameter of the disks 4 and their number have a direct effect on the heating power. This is calculated as follows:
- FIG. 5 shows an exemplary embodiment based on the pressure / throttle principle.
- a shaft 3 with pump means 12 is in turn arranged in the heating container 2.
- a narrow channel 13 is provided with plates.
- a pressure is built up by the pump means 12 and the fluid is pressed through the narrowed channel 13 and throttled there. Entropy is released, which leads to heat.
- additional throttle hoses 14 are provided on the screed heater 2.
- These throttle tubes 14 also form throttles and heat is also generated there. With these choke tubes 14, heat can also be conducted to the other locations on the base plate of the screed body 9 or to other critical areas of the screed.
- a further advantageous embodiment for the aforementioned exemplary embodiments consists in that a cooling circuit with a heat dissipation line 15 and a fan 16 is provided. The excess heat can then be dissipated above the base plate and guided to the tamper 8 or other critical areas of the screed as a warm air stream with an air outlet nozzle 17. At the points where heat is to be dissipated, additional cooling fins 18 can be provided which are connected to the heat dissipation lines 15.
- a fluid should preferably be used, the
- Asphalt pavers must be warmed up and run warm before use. At this stage there is sufficient hydraulic power that can be used to rotate the shaft. When the heating is warmed up, only a low power is required, which is easily available with the existing units.
- the temperature-dependent viscosity ensures a stable temperature with the same geometric dimensions and constant external influences of the radiator. This temperature can be regulated by the speed of the shaft. This means that heating control is not required. Only the speed of the shaft must be set depending on the desired temperature.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Machines (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU64625/99A AU6462599A (en) | 1998-08-13 | 1999-08-11 | Plank heater for finishing machines |
DE19981549T DE19981549D2 (de) | 1998-08-13 | 1999-08-11 | Bohlenheizung für Straßenfertiger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19836650A DE19836650A1 (de) | 1998-08-13 | 1998-08-13 | Bohlenheizung für Straßenfertiger |
DE19836650.7 | 1998-08-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000009809A1 true WO2000009809A1 (de) | 2000-02-24 |
WO2000009809A8 WO2000009809A8 (de) | 2001-09-20 |
Family
ID=7877375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/002473 WO2000009809A1 (de) | 1998-08-13 | 1999-08-11 | Bohlenheizung für strassenfertiger |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU6462599A (de) |
DE (2) | DE19836650A1 (de) |
WO (1) | WO2000009809A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7997826B2 (en) | 2006-11-01 | 2011-08-16 | Tru-Turf Pty Ltd | Roller assembly |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0115039D0 (en) | 2001-06-20 | 2001-08-08 | Finning Uk Ltd | Electrically heated paving screed |
EP4353908A1 (de) | 2022-10-12 | 2024-04-17 | Joseph Vögele AG | Strassenbaumaschine mit wärmepumpe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5096331A (en) * | 1990-09-04 | 1992-03-17 | Carlson Paving Products, Inc. | Method and apparatus for heating a paving screed via liquid circuit heat transfer |
US5308190A (en) * | 1990-09-04 | 1994-05-03 | Carlson Paving Products, Inc. | Method and apparatus for heating an asphalt paving screed |
EP0773122A2 (de) * | 1995-11-13 | 1997-05-14 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Fahrzeugheizungssystem |
DE19628664A1 (de) * | 1996-07-16 | 1998-01-22 | Franz Pletzer | Wärmeerzeugungsanlage |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1145292B (it) * | 1980-10-14 | 1986-11-05 | Italcementi Spa | Dispositivo per effettuare trattamenti protettivi su manuiatti in conglomerato cementizio sia in opera sia in sede diprefabbricazione |
-
1998
- 1998-08-13 DE DE19836650A patent/DE19836650A1/de not_active Withdrawn
-
1999
- 1999-08-11 WO PCT/DE1999/002473 patent/WO2000009809A1/de active Application Filing
- 1999-08-11 AU AU64625/99A patent/AU6462599A/en not_active Abandoned
- 1999-08-11 DE DE19981549T patent/DE19981549D2/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5096331A (en) * | 1990-09-04 | 1992-03-17 | Carlson Paving Products, Inc. | Method and apparatus for heating a paving screed via liquid circuit heat transfer |
US5308190A (en) * | 1990-09-04 | 1994-05-03 | Carlson Paving Products, Inc. | Method and apparatus for heating an asphalt paving screed |
EP0773122A2 (de) * | 1995-11-13 | 1997-05-14 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Fahrzeugheizungssystem |
DE19628664A1 (de) * | 1996-07-16 | 1998-01-22 | Franz Pletzer | Wärmeerzeugungsanlage |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7997826B2 (en) | 2006-11-01 | 2011-08-16 | Tru-Turf Pty Ltd | Roller assembly |
Also Published As
Publication number | Publication date |
---|---|
AU6462599A (en) | 2000-03-06 |
WO2000009809A8 (de) | 2001-09-20 |
DE19836650A1 (de) | 2000-02-17 |
DE19981549D2 (de) | 2001-07-12 |
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