EP0843044A1 - Automotive finisher - Google Patents

Abstract

The machine has a chassis supported by an under carriage. In the chassis there is a primary drive source, at least one building material bunker and a longitudinal conveyor leading to a rear discharge area. There is also a work place (A1,A2) for people. At least one discharge channel (14,14') has a suction device (V,V1) connected to it which takes in gaseous emissions from the construction material. Over a machine driver work place (A1) a roof or cabin structure (D) is provided, supported on the chassis and the discharge channel forms part of the support (E) of the roof or cabin structure. The roof structure has at least one hollow support component (8,9) which forms support wall on which the discharge channel is fixed or is formed in it as a hollow profile (H).

Description

The invention relates to a self-propelled road construction machine according to the preamble of claim 1.

Processed in road construction machines such as pavers or feeders, hot installation material, especially bituminous or bituminous paving material gives off emissions that at least workers exposed to road construction machinery is. According to the current state of knowledge there is none comprehensible individual risk of disease due to emissions that are often perceived as annoying. With regard possible future regulations or recommendations and on humane working conditions are desirable, at least to protect workers from emissions and, if necessary also minimize the environmental impact.

In a road construction machine known from US-A-4 012 160 (Blacktop paver) is on the towed screed a large-sized suction device is provided, the suction hoses with a first device part in the form of a cover the area of the screw between the rear end of the Chassis and screed is connected and sucks emissions. A second part of the device consists of a longitudinal channel in the chassis and a partial cover of the open top Built-in bunkers. By means of the second part of the device Emissions from the paving material are extracted in the bunker. The emissions are pumped or blown into a collection chamber brought in facilities or substances to Cleaning are included. Extends from the collection chamber a delivery channel upwards into the open. The blowing out takes place at a height below the machine operator's seat the workplace on the chassis and approximately at the height of the One head on the back of the screed at the workplace standing worker.

In a road construction machine known from EP-A1-0 666 373 (Asphalt pavers) are from the suction device in the Auger area between the rear end of the chassis and the towed Screed and in the upper opening area of the paving bunker exhausted emissions into an inlet of a Internal combustion engine and thermally treated in the engine, before any remaining parts through the exhaust system of the internal combustion engine are blown up into the open. Possibly only part of the emissions in the internal combustion engine guided; the remaining part is directly in the exhaust system initiated. The air is blown out in the direction of travel in front and slightly above the height of the head of the machine operator sitting in the workplace, and in front of and above the head of one in the back of the workplace Screed standing worker.

In a NAPA test report published in the USA (National Asphalt Pavement Association) from 07.10.1993 Described road tests with a Cedarapids paver, on the chassis a suction device with a Blower is arranged that over freely laid pipes Emissions in the screw area between the rear end of the chassis and a trailed screed and in front aspirates at several suction points in the bunker. The blow out takes place above the head height on the workplace machine operator sitting or standing by the chassis a chimney-like delivery channel.

The main purpose of those provided in the known road construction machinery Suction devices protect workers on or on the road construction machine against emissions. However, can be under in the known machines unfavorable conditions are still not a nuisance exclude, and disrupt components of the attached suction device the normal workflow (visual impairment, Restriction of the range of motion, etc.).

The invention has for its object a road construction machine to create of the type mentioned, in which the Workers with simple structural means with extensive Use of common machine concepts against emissions of the installation goods is protected.

The object is achieved according to the invention with the features of claim 1 solved.

The one with modern road construction machines such as pavers or feeders usual roof or cabin structure is used, structurally simple at least one discharge channel leading upwards to integrate into the road construction machine. The delivery channel is held on the support of the roof or cabin structure or incorporated into this. With this method of attachment is the delivery channel optically and structurally in the roof or Cabin structure housed, creating space and separate supports be saved. The delivery channel runs particularly well Appropriately up to the roof height, where it works without bothering the workforce blows out. The combination of the canopy for the machine operator on the chassis with the one on or above the discharge opening of the discharge channel is at the roof height essential. Even in unfavorable weather conditions or at extremely slow working speeds Road construction machines have no emissions in the face area of the machine operator. The integration of the delivery channel in the roof or cabin structure also leads to the fact that the delivery channel is optically in the background and the The machine operator's field of vision and movement is not greater impaired as the support of the roof or cabin structure itself. The roof or cabin structure does one Additional task because it not only opposes the machine operator Protects the weather, but also against the annoying Influence of emissions blown through the tax channel. The training is structurally simple because of the given requirements on the roof or cabin structure for attaching the delivery channel be used. The retrofitting of one with a roof or cabin structure equipped paver or feeder with the suction device is possible necessary for positioning and holding the delivery channel structural requirements are largely met. It the workplaces on and on the road construction machine are more humane designed.

If, according to claim 2, the roof structure is at least one post-like, has hollow support element, this is used as a delivery channel trained or used to receive the delivery channel. In this way, the delivery channel is stably supported. The operator's field of vision is Delivery channel no longer affected than by the support element itself. The hollow profile defining the delivery channel could be inserted into the hollow support element.

Alternatively, according to claim 3, the delivery channel is a hollow profile on a post-like support element of the roof structure, preferably removable, held. This is a double support function Providing support element also holds the delivery channel. The machine operator's field of vision is limited by the additional Hollow section not significantly restricted than through the support element, since the hollow profile is attached to the Support element hugs or positioned behind this becomes.

According to claim 4 is alternatively a support wall of the cabin structure, in which the workplace of the machine operator to define or accommodate the delivery channel used.

According to claim 5, several delivery channels are on the one hand in the With regard to their optimal mounting and accommodation and on the other hand, as close as possible to the associated suction device parts arranged. The connection of each suction device part with the assigned delivery channel can be via a Hose section take place, which is not disturbing leaves.

Alternatively, at least one is common according to claim 6 front or rear delivery channel for both suction device parts intended.

According to claim 7 bridges at least one side feed channel the distance between a suction device part and the common delivery channel. The feed channel can be space-saving accommodate. It will be cheap and low resistance Flow conditions achieved in the discharge channel.

According to claim 8, by means of dispensing channels arranged on both sides achieved large throughputs, the cross-sectional proportions The sizes and sizes of the delivery channels can be freely configured are.

For an effective extraction of emissions is according to claim 9 at least one suction-blowing unit in each suction device part intended.

Alternatively, according to claim 10 is a single common Suction-blow unit provided. The suction effects in the different Areas of the road construction machine can be Valves, flaps or similar devices in the flow paths set individually.

According to claim 11, using a turbine at moderate High output achieved. The noise nuisance can be low with a turbine Maintain level.

According to claim 12, an additional protective effect for the Workers and the environment achieved by the sucked in Emissions filtered on the way to the delivery channel or be treated thermally. It would also be possible with one Catalyst to make a treatment.

Sucking off the emissions also removes some of the released Heat that would otherwise be a nuisance to workers, dissipated. According to claim 13, it can provide heat and sound insulation for the channels to be provided for the heat and Reduce noise pollution at workplaces.

According to claim 14, the delivery channel ends above, preferably just above the roof area. The escaping gas stream is guided along the roof surface and / or from the wind dissipated without the operator or behind on the Scaring standing screed workers.

The use is simple in terms of production technology of profile tubes. Become the rectangular profile tubes upright or with a longer cross-sectional axis parallel to the direction of travel arranged, then space is saved in the transverse direction.

According to claim 16 are simple and convenient to use couplings for maintenance or repair work or also for dismantling of the delivery channel is intended for transport purposes.

Since road construction machines often come from a work station on a flatbed truck to be transported to another, and prescribed Transport heights, it is advisable to if according to claim 17 the delivery channel together with the Support element can be folded down into a transport position.

According to claim 18, the main part of a paver emitted emissions extracted. At least one of the suction device parts, expediently at the bunker, can in an inactive transport position to move during transport of the self-propelled paver to the machine operator to ensure an unrestricted view to the front. Possibly is also the rear suction device part in a transport position shiftable to during the transport journey the screed of the self-propelled paver to be able to.

According to claim 19 are also in operation with a feeder emissions effectively extracted.

Fig. 1

eine schematische Seitenansicht einer Straßenbaumaschine,

Fig. 2

eine Seitenansicht einer geänderten Ausführungsform,

Fig. 3

eine Seitenansicht einer weiteren Ausführungsform,

Fig. 4

eine Seitenansicht einer weiteren Ausführungsform,

Fig. 5

eine Seitenansicht einer weiteren Ausführungsform,

Fig. 6

eine Seitenansicht einer weiteren Ausführungsform, mit einem Kabinenaufbau,

Fig. 7

eine Seitenansicht einer als Beschicker ausgebildeten Straßenbaumaschine,

Fig.8+9

Vorderansichten zweier unterschiedlicher Ausführungsformen einer Straßenbaumaschine, und

Fig. 10

eine Hinteransicht einer Straßenbaumaschine.

Embodiments of the subject matter of the invention are explained with the aid of the drawing.

Fig. 1

a schematic side view of a road construction machine,

Fig. 2

a side view of a modified embodiment,

Fig. 3

a side view of another embodiment,

Fig. 4

a side view of another embodiment,

Fig. 5

a side view of another embodiment,

Fig. 6

2 shows a side view of a further embodiment, with a cabin structure,

Fig. 7

a side view of a road construction machine designed as a feeder,

Fig. 8 + 9

Front views of two different embodiments of a road construction machine, and

Fig. 10

a rear view of a road construction machine.

1 is a self-propelled Paver F for installing a bituminous or bituminous Ceiling coverings in a traffic area. The paver F has a chassis 1 on a chassis 2 (wheel chassis or crawler track) is mobile, and in the working direction front end at least one open at the top Contains bunker 3. Below the bunker 3 runs inside of the chassis 1 up to a delivery area 5 extending longitudinal conveyor device (at least one scraper belt or a screw conveyor). At a distance behind the rear end of the chassis 1, a screed B is towed a screw space 6 'delimits a screw arrangement 6 is located that falling in the delivery area 5 Spread the paving material laterally and present it to the screed B. In the chassis 1 there is also a primary drive source 7, e.g. a Diesel engine, in which, for example, on a Platform 17 of the chassis 1. a work station A1 for the machine operator located. Above workplace 1 is a roof structure D is attached by means of a support E. The Support E consists of fixed to the chassis 1, upright and possibly hollow support elements 8 and 9. For example, in the four corners of the roof structure D Support elements 8 and 9 are provided. It would be possible too provide middle support elements (front and / or side). Folding and relief devices 10 enable this convenient transfer of the roof structure D from that shown in Fig. 1 Working position in a folded transport position. At least Another workplace A2 can be found at the back of the screed B may be provided.

The paver F is equipped with a suction device V for emissions of the installation goods. The suction device V consists e.g., from at least two suction device parts V1 and V2. In the suction device part V1 is one The screw chamber 6 'is provided with an arrangement 11 covering at least upwards, which in the transverse direction if necessary up to Screed B provided, extendable pull-out parts of the Screed B (not shown) extends and extendable with them is. A suction-blowing unit 12 is at the screw room 6 'connected and contains, for example, an electrical driven turbine. At least extends from the unit 12 a hose section 13 (see FIG. 10) to the connection end a delivery channel 14, which is designed as a hollow profile H. and is structurally integrated in the support element 9. At every A delivery channel 14 can be provided on the side of the roof structure D (rear) be.

The hollow profile H can be a square tube with the Direction of travel arranged parallel longer cross-sectional axis is. The actual roof area 160 of the roof structure D is attached to the delivery channels 14, so to speak.

The front suction device part V2 has one above arrangement 11 'provided on the open top of the bunker 3 to suck in the emitted emissions. It stretches expediently over the width of the bunker 3 (Fig. 8 and 9). A suction-blowing unit 12 ', advantageously also a turbine, is via a hollow channel or a hose section 13 'is connected to a delivery channel 14' which is shown in FIG structurally in at least one of the front support elements 8 is incorporated. To connect the hose section 13 ' a releasable coupling 23 can be provided with the delivery channel 14 ' be. Can in the flow path into the discharge channels 14, 14 ' Filters or reheaters 22 may be provided. The Arrangement 11 'is expediently in a transport position adjustable (swiveling), in which the machine operator one has an unobstructed view to the front. Both front support elements 8 can form delivery channels 14 'and also an intermediate one Supporting element of the roof structure D is a delivery channel 14 'usable (Fig. 8).

2, the discharge channels 14, 14 ' with fastening elements 15 on the support elements 8, 9 of the Roof structure D supported, thus for positioning and Determine the delivery channels 14, 14 'serve. Any delivery channel 14 (possibly only one is provided) is straight at the bottom extended (instead of the hose section 13 in Fig. 1). The delivery channels 14, 14 'are expediently positioned so that it covers the machine operator's field of vision Do not restrict the A1 workplace more than the support elements 8, 9. The suction device V according to FIG. 2 with the the support elements 8, 9 fixed delivery channels 14, 14 ', that end above the roof surface 160 can be a modular unit be, which is also for retrofitting an already operated Paver or an existing paver concept.

The pavers F of FIGS. 3 and 4 have a roof structure D. with only front, slightly inclined support elements 8 and a roof area 160 which projects freely to the rear. For the suction device parts V1, V2 is at least one A common delivery channel 14 'is provided on the side of the roof structure D, the fixed to one of the support elements 8 or formed by or inserted into this. Possibly (Fig. 9) are both support elements 8 delivery channels 14 '. The suction device part V2 is over the longitudinal channel or a hose section 13 'with the respective delivery channel 14' directly connected. The hose section 13 from the rear suction device part V1, however, is over a longitudinal, lateral feed channel 16 (a hollow profile) with the Delivery channel 14 'connected. The feed channel 16 can be scarce above the platform 7 and fixed, or inside of the chassis or below the platform 17 on the outside of the chassis 1. The roof structure D in Fig. 3 can fold into a transport position, conveniently with the Delivery channel 14 '.

In Fig. 4 the delivery channel is 14 'or the delivery channels 14 'integrated or forms in the support element (s) 8 each support element 8 formed as a hollow profile Dispensing channel 14 'to which both suction device parts V1 and V2 are connected. It would be conceivable for the one suction device part Connect V1 to the discharge channel 14 'on one side, on the other hand, the suction device part V2 to the discharge channel 14 'on the other side. The feed channel 16 is in Fig. 4 laid as in Fig. 3. Couplings not shown can Connect flow path sections.

In Fig. 5 is the feed channel 16 'to which the hose section 13 is connected, laid in the chassis 1, or if necessary on the outside. It is every support element 8 simultaneously formed as a delivery channel 14 ', or at least a support element 8 on a paver side. Dashed The definition of the delivery channel 14 'is indicated on Support element 8 analogous to the embodiment in FIG. 3.

The paver F according to FIG. 6 is instead of a roof structure A closed cabin structure above workplace A1 K provided the roof surface 160 on the support E defining support walls 17 'rests. A door 18 can be provided in at least one support wall 17 '. In solid lines indicate that at least one front Delivery channel 14 'on the outside of the cabin structure K is attached. The feed channel 16 'is either in the chassis 1 installed or laid on the outside of chassis 1. Alternatively is indicated that in the support wall 17 'of the cabin structure K a hollow profile H is structurally integrated, which is the delivery channel 14, e.g. defined for the rear suction device part V1. However, the rear delivery channel 14 could also be analog 2 to be formed and arranged.

7, the self-propelled road construction machine M is a so-called Feeder T, which acts as a mobile buffer for paving in front of a paver (Fig. 1 to 6) and this via a rear conveyor 18 with installation goods supplied by delivery vehicles in the bunker 3 of the Feeder T is filled. A feeder bunker 3 T is usually designed with a larger capacity as the bunker 3 of a paver F.

The feeder T can be of a similar design to that described above Be finished. In chassis 1, which is on a chassis 2 is mobile, the bunker 3 is arranged in front of which the installation goods with the longitudinal conveyor 4 to the rear is promoted to a delivery area 5. The further, Conveying device 18 transfers the installation goods to those traveling behind Paver. The feeder T has one on the chassis 1 Workplace A1 for a machine operator. The workplace A1 is replaced by a roof structure D (or a cabin structure K shielded according to FIG. 6). The roof structure D has upright support elements 8 analogous to FIG. 3 or front and rear support element 8, 9 according to FIG. 1. Furthermore the feeder T has a suction device made of suction device parts V1 and V2 on that with at least one delivery channel 14 'are connected and emissions from the installation goods above the bunker 3 and preferably also in the delivery area 5 vacuum. The feed channel 16 'is laid in the chassis 1. Of the Delivery channel 14 '(optionally on each side) is on the Support element 8 set outside. Dashed lines are indicated (Anaolg to Fig. 4) that the delivery channel 14 'structurally in the Support element 8 can be integrated, or that that as a hollow profile trained support element 8 simultaneously the delivery channel 14 'forms.

8 and 9 also apply to the Feeder T of FIG. 7. A separate description is therefore unnecessary.

In all embodiments, the channels 16, 16 ', 14, 14' be heat and / or soundproof. 10 is dashed indicated, as in FIG. 2, the left delivery channel 14 is led directly down and to the suction-blowing unit 12.

Claims (19)

Self-propelled road construction machine (M), in particular paver (F) or feeder (T), with a chassis (1) carried by a chassis (2), in which a primary drive source (7), at least one bunker (3) and one to the rear Dispensing area (5) guiding longitudinal conveyor device (4) are arranged, with at least one personal work station (A1, A2), and with a suction device (V, V1, V2) connected to at least one delivery channel (14, 14 ') for those discharged from the installation goods , essentially gaseous emissions, characterized in that a roof or cabin structure (D, K) supported on the chassis (1) is provided above a machine operator workstation (A1), and in that the delivery channel (14, 14 ') on the Support (E) of the roof or cabin structure (D, K) is held or integrated into the support (E). Road construction machine according to claim 1, characterized in that the roof structure (D) has at least one post-like, hollow support element (8, 9) which forms or contains the delivery channel (14, 14 '). Road construction machine according to claim 1, characterized in that the delivery channel (14, 14 ') is a hollow profile (H) and with fastening elements (15) on a post-like support element (8, 9) of the roof structure (D), preferably removable, is held. Road construction machine according to claim 1, characterized in that the cabin structure (K) has at least one support wall (17) on which the delivery channel (14, 14 ') designed as a hollow profile (H) is fixed or into which the delivery channel (14, 14') is molded or inserted as a hollow profile (H). Road construction machine according to the preceding claims, characterized in that suction device parts (V1, V2) are provided at the front and rear, which are connected to separate front and rear delivery channels (14, 14 '), preferably via hose sections (13, 13'). Road construction machine according to claims 1 to 4, characterized in that front and rear suction device parts (V1, V2) are provided which are connected to at least one common delivery channel (14, 14 '). Road construction machine according to the preceding claims, characterized in that at least one in the substantially horizontal lateral feed channel (16, 16 ') is provided, which is laid just above or in or on the side of the chassis (1). Road construction machine according to the preceding claims, characterized in that delivery channels (14, 14 ') or feed channels (16, 16') are provided on both sides of the machine operator's work station (A1). Road construction machine according to claims 5 or 6, characterized in that at least one suction-blowing unit (12, 12 ') is provided in each suction device part (V1, V2). Road construction machine according to at least one of claims 1 to 8, characterized in that a common suction-blowing unit (12) is provided for the suction device parts (V1, V2). Road construction machine according to claims 9 or 10, characterized in that the suction-blowing unit (12, 12 ') has a turbine, preferably an electrically driven turbine. Road construction machine according to one of claims 9 or 10, characterized in that, preferably in the suction-blowing unit (12, 12 '), a filter (activated carbon filter) and / or a reheating device (22) is provided. Road construction machine according to at least one of the preceding claims, characterized in that the channels (14, 14 ', 16, 16', 13, 13 ') are thermally and / or soundproofed. Road construction machine according to claim 1, characterized in that the delivery channel (14, 14 ') ends above, preferably just above, the roof surface (160) of the roof or cabin structure (D, K). Road construction machine according to at least one of the preceding claims, characterized in that the channels (14, 14 ', 16, 16') are profile tubes, preferably square or rectangular profile tubes, which are arranged upright or with a longer cross-sectional axis parallel to the direction of travel. Road construction machine according to at least one of the preceding claims, characterized in that couplings (23), preferably releasable couplings, are provided between ducts (14, 14 ', 16, 16') and / or suction device parts (V1, V2). Road construction machine according to at least one of claims 1 to 3, characterized in that the support element (8, 9) of the roof structure (D) holding or containing the delivery channel (14, 14 ') can be folded down into a transport position with the delivery channel (14, 14') is. Road construction machine according to at least one of the preceding claims, characterized in that at least one suction device part (V2) is arranged above the bunker (3) and at least one further suction device part (V1) at the screw chamber (6 ') of the road construction machine (M) designed as a paver (F) and that, preferably, the suction device part (V2) of the bunker (3) can be moved into an inactive transport position. Road construction machine according to at least one of Claims 1 to 17, characterized in that at least one suction device part (V2) above the bunker (3) and at least one further suction device part (V1) at the rear above the delivery area (5) of the road construction machine designed as a feeder (T) ( M) is arranged.

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