JP2788191B2 - Road finishing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The invention relates to a road finishing machine of the type defined in the preamble of claim 1.

[0002]

2. Description of the Related Art European Patent Application Publication O 469 969
According to the basic structure of a road finishing machine which has been widely used for several decades in the electric road finishing machine known from U.S. Pat. The platform is positioned at a height that allows the driver sufficient visibility ahead of the first drive assembly. As used herein, the term "electric road finishing machine" refers to electrically driving at least the basic operating components, such as moving equipment, conveyor drive means, lateral distributor drive means and the like. This is an explanation of a road surface finishing machine constructed as described above. The internal combustion engine of the first drive assembly serves primarily as a drive for the three-phase generator that produces the current used for the various electric drives. The internal combustion engine can drive a three-phase generator directly or through an intermediate gear. Under certain conditions of use, the internal combustion engine is harmful to and detrimental to the environment, as far as the natural environment or the immediate environment is concerned, and the driver behind this engine is subject to noise, vibration and exhaust emissions. The disadvantages of gas are hampering the advantages of electric road finishing machines, which should be clean and beneficial for protecting the living environment. For example, in a tunnel, a building site that has been erected, or a road construction site that is surrounded by surroundings, the operating noise and exhaust gas of the internal combustion engine pose a problem. Also, repair and maintenance work performed in the first drive assembly of the road finishing machine takes a long time and is expensive. Work space is often limited and this type of work is cumbersome. For modern road finishing machines with a cab, the cab must be able to be removed or tilted. These operations are performed in a complicated procedure. When transporting a road finishing machine,
Particularly when the height is too high, transportation using a special form of transportation method or detour means may be necessary.

An object of the present invention is to provide an electric system of the type mentioned at the beginning, which can be easily handled, can be easily maintained and repaired, can flexibly cope with various use conditions, and is easy to transport. To provide a road finishing machine. This object can be achieved according to the invention with the features of claim 1.

[0004]

SUMMARY OF THE INVENTION In order to perform maintenance or repair work, the independent component unit can be removed from the chassis. In this way, the work on the first drive assembly can be performed in an easy-to-operate state.
In addition, since the independent component unit can be detached from the chassis, the operating components and other components provided on the chassis can be easily touched. The component unit on the chassis is replaced with another component unit of the same type, and the road finishing machine can continue its work quickly using this newly replaced component unit. The operation does not interrupt the operation and the cost is not increased. Positioning the components behind the cab of the undercarriage improves the visibility of the front part of the road finishing machine, makes the containers for paving material more visible from the cab, and reduces noise and emissions effects on the driver. Is reduced.
In addition, since the driver's cab can be arranged lower than in the conventional case, the height of the driver's cab can be reduced, thereby solving the problem of transportation. The removed component unit can be used as a power supply unit at a road construction site or other places. In order to carry out a troublesome repair work that cannot be performed at a road construction site, the road surface finishing machine can be left as it is, or the component unit can be transported to another place or the operation can be continued by replacing the component unit. When performing road-covering work in a tunnel or on-site during construction, the removed component unit is installed at a convenient location in the tunnel, outside the tunnel or outside the building, and connected to the road finishing machine using a cable. be able to. With this configuration, the amount of noise can be significantly reduced while supplying electric power from a remote position, and the road surface finishing machine can be operated in a state where no exhaust gas is generated.

[0005] A pamphlet "SENTORE 21, KE1137A IBeBh" issued by Niigata Iron Works Co., Ltd. (Tokyo, Japan) discloses a road finishing machine in which a cab is installed in a box-shaped room on a chassis behind a pavement material container. I have to. However, this road finishing machine is operated by hydrostatic drive means which is an operating component. The hydrostatic drive means is adapted to receive a supply of hydraulic drive from the first drive assembly or a supply of mechanical drive via a gear unit in a conventional manner. I have. The first drive assembly projects significantly into the cab from the rear to the front. The first drive assembly cannot be removed unless the road finisher body is disassembled extensively.

Claim 2 discloses a particularly advantageous embodiment. The cab has a function of reliably protecting the driver from noise, vibration and exhaust gas of the internal combustion engine. In the box-shaped cab, there is provided an appropriate work place where a comfortable working state can be obtained for the driver. The driver does not need to look ahead across the first drive assembly. For this reason, the cab can be installed at a low height. Even when a stable operator's cab is installed, the transported length does not exceed the allowable range. Since the cab has been moved to the forefront, a large space is provided behind the cab where component units can be installed. The center of gravity of the first drive assembly is set at an appropriate position.

Another advantageous embodiment is the embodiment according to claim 3. According to this embodiment, the larger mounting space can also be used to accommodate a frequency converter.

According to the structural design of the fourth aspect, the frequency converter remains on the chassis even when the component unit is removed.

[0009] According to the structural design of the fifth aspect, the frequency converter can be incorporated in a component unit and can be detached from the chassis together with the component unit.

According to the structural design of the sixth aspect, the component unit is fixedly connected to the chassis during operation of the road finishing machine, but apart from this connection state, the component unit is quickly removed. Or can be re-attached.

According to the structural design of the present invention, a favorable center of gravity position can be obtained by the mounting configuration in the horizontal direction, and the mounting space in the vertical direction can be saved.

[0012] According to the structural design of the present invention, the noise which harms the environment and adversely affects the driver is reduced.

[0013] According to the structural design of the ninth aspect, the removed component unit is operated away from the road finishing machine,
Power can be supplied to the road finishing machine connected via the connecting cable, and power can be generated and electric energy can be supplied for other purposes.

Claim 10 discloses a particularly advantageous embodiment. The cable drum is mounted when the component unit is removed. The road finishing machine moves while continuing operation. The cable drum is adapted to transfer electrical drive from the remote first drive assembly to the road finishing machine through at least one power cable. If necessary, instead of installing a new cable drum, just plug in the power cable and let the road finishing machine pull the power cable.

According to an embodiment of the present invention, the detached component unit is used away from the road finishing machine,
It can be used as a power supply unit for lighting on road construction sites and for other purposes.

According to the twelfth aspect, when the component unit is mounted or removed, the component unit can be easily handled.

According to the feature of claim 13, it is convenient to remove or attach the component unit without delay.

According to an embodiment of the present invention, it is necessary to access the first drive assembly and / or the undercarriage from the cab side for the operation of removing and installing the component units. There is an advantage that a sufficient space can be secured for maintenance work. The main items of the embodiment of the present invention will be described with reference to the drawings.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An electric road surface finishing machine F has a traveling mechanism (crawler device 2 or wheel device 2 ') installed on a chassis 1. Moving direction A during operation of the road finishing machine
As shown in FIG. 1, a container 9 for pavement material is attached to the front of the chassis 1 and a lateral distribution means 7 is installed to the rear. A box-shaped operator's cab 12 is provided in the chassis 1 immediately behind the paving material container 9. A driver's cab 11 provided with operation management / control means is arranged in the cab.
A first drive assembly is provided behind the cab 12. This first drive assembly has an internal combustion engine 13 and a three-phase generator 14, which is connected to the three-phase generator 14 via an intermediate gear if necessary. The frequency converter 15 is located behind or on the side of the first drive assembly . The first drive assembly is accommodated in a housing 16 of the capsule-type, it is able to remove it from the chassis 1 as a separate construction unit B. Frequency conversion, if desired
The unit 15 can also be incorporated in an independent component unit.
You. In this case, the independent constituent unit is B 'in the drawing.
Express.

The three-phase generator 14 is connected to the frequency converter 15 via an electric trunk 27. Further, the frequency converter 15 is connected to a plurality of second electric driving means provided on the road surface finishing machine through a wiring 29. If the frequency converter 15 is not a component of construction units, connecting means 2
8 can be provided to separate the component unit B from the frequency converter 15. Further, when the frequency converter 15 is Ru component der construction unit, not shown,
A removable connector is installed on the wiring 29. The operation management / control means installed on the cab 11 and connected to the first drive assembly includes a connecting member or wiring 34.
And a detachable connector 35 connected to the first drive assembly. The fixing members 25, 26 each serve to fix the component unit B and the first drive assembly at predetermined positions on the chassis. The first drive assembly is mounted in a lateral orientation.

The undercarriage 1 is provided with side overhangs 17 articulated to the undercarriage. Road finishing machine is overhang 1
7 through a screened trowel C (road trowel, roughing trowel or other equipment). The undercarriage 1 is provided with a vertical conveyor between the pavement material container 9 and the horizontal distribution means 7 for transporting the pavement material from the container 9. If necessary, a container for the spray solution can be installed between the container 9 for the paving material and the cab 12.

Among the components of the road finishing machine F, at least the most important, ie the strongest operating components, are second components adapted to be driven by an electric drive supplied from the first drive assembly. Is provided. In the illustrated road finishing machine, the second driving means described below is merely an example, and does not specify the structure. The second drive means is an electromechanical drive means 4 for the traveling mechanism 2 or 2 'and an electromechanical steering drive means 3 (for the steering wheel of the wheel device 2').
And electromechanical drive means 8 for the longitudinal conveyor 5
An electromechanical actuator 10 used for the wall member of the container 9 for pavement material; an electromechanical actuator 19 for adjusting the trowel C; and an electromechanical actuator 33 for moving the cab 12. And a mechanical driving means or an electric heater 20 provided inside or on the iron C. In this specification, the term electromechanical also includes electric / hydraulic / mechanical. This is evident, for example, from G92 10 367,
It is also clear from the hydraulic drive unit described herein.

Between the container for the pavement material and the cab separating these units, a transverse frame 21 with a headlamp 22 can be provided. Windshield of the cab 12, the lower edge is positioned immediately above the rear wall 9 a of the container 9 for paving materials. It is preferable to provide noise and vibration protection means on the wall of the cab 12. Similarly, the capsule-type housing 16 is configured to be able to attenuate noise and vibration. The rear wall of the capsule housing 16 is
It is almost on the same plane as the rear end of the chassis 1.

Since the cab 12 is mounted on the chassis so that it can be lifted and tilted, it can be handled freely and quickly for maintenance and repair work, and the component units B and B 'can be removed and mounted. it can.
The locking means 32 can be released for the purpose of moving the cab 12. For example, the actuator 33 is used to perform a lifting operation or a tilting operation.

The component units B 1 , B ′ and the first drive assembly are each provided with connecting members 23, 24 for a lifting device. Conveniently, the component units B, B 'comprise a fuel tank and a starting battery for the internal combustion engine, and, if necessary, preferably comprise operating / control means for the first drive assembly.

When the fixing members 25, 26 are released, the component units B, B 'are removed, and for example, maintenance or repair work of the drive assembly, maintenance or repair work of the chassis, or Constituent unit B ,
Instead of B ′ , a cable drum 30 as shown in FIG. 2 can be attached. The cable drum 30 includes a power cable 31 connected to the frequency converter 15. The power cable 31 is also connected to the component units B 1 and B ′ installed separately from the road finishing machine F. If the road finishing machine works in the tunnel T as shown in FIG. 2, the adverse effect of noise is greatly reduced, and the operation can be performed in an exhaust gas-free environment of the internal combustion engine. Further, the cable drum 30 may be arranged near the component units B 1 and B ′ moved to another place. In this example, the road finishing machine F pulls the power cable 31 connected to the frequency converter 15. When maintenance or repair work must be performed, the road finishing machine can be continuously operated by removing the component units B and B 'and replacing them with the same type of component unit. The removed component units B and B ′ can be used as a power supply unit for supplying electric energy for lighting of the road construction site S or driving other equipment used at the road construction site. Each of the component units B, B 'can be removed to transport the road finishing machine, thus reducing the transport weight.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an electric road surface finishing machine.

FIG. 2 is a schematic explanatory view of a road development site.

[Explanation of symbols]

 Reference Signs List 1 chassis 3 electromechanical steering drive means 4 electromechanical drive means 5 vertical conveyor 6 electromechanical drive means 7 lateral distribution means 8 electromechanical drive means 9 container for pavement material 10 actuator 11 operation Table 12 Operator's cab 13 Internal combustion engine 14 Three-phase generator 15 Frequency converter 16 Capsule housing 21 Transverse frame 23, 24 Connecting member 25, 26 Fixing member 30 Cable drum 31 Power cable 32 Locking means

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E01C 19/48 B60K 1/00 B60K 5/10

Claims (14)

(57) [Claims] [1 claim] and electric drive means for functional components, used in the electric drive unit, a first drive assembly having an inner combustion engine and three-phase generator, with a traveling mechanism, during operation In the direction of travel, there is a container for paving material at the front and a chassis mounted at the rear with transverse distribution means, the first drive assembly and the cab comprising the container for paving material. A road finishing machine such as is mounted on a chassis between the vehicle and the lateral distribution means.
4) constitutes an independent component unit ( B) which can be removed and is located behind the cab (11) when viewed in the direction of travel during operation of the road finishing machine. A road surface finishing machine characterized by being constituted. 2. The road finishing machine according to claim 1, wherein the driver's cab (11) is located at a front end of the chassis (1) adjacent to the paving material container (9). Driver's cab (1
2) A road finishing machine, wherein the road finishing machine is disposed inside. 3. A have your <br/> the road finishing machine according to claim 1, the first drive assembly (13, 14) are asynchronous
Drive means (4, 6, 10 , 1) configured as a motor
9, 20, 33), which are electrically connected to the frequency converter (15), which is on the chassis (1) and behind the first drive assembly (13, 14). Alternatively, a road surface finishing machine disposed on a side portion and electrically connected to the driving means. 4. The road finishing machine according to claim 3, wherein the frequency converter (15) is connected to the first drive assembly (13, 14) via a releasable connection means (28). And a road finishing machine fixedly mounted on the chassis (1). 5. The road finishing machine according to claim 3 , wherein the frequency converter (15) is connected to the component unit (B ′).
Road finishing machine, characterized in that it is connected to the drive means via a built-in and detachable connector. 6. A road finisher according to claim 1 or 5, the chassis (1) and the structural unit (B, B ') is that it is secured by releasable securing means (25, 26) Features a road finishing machine. Te 7. road finishing machine odor according to claim 1 or 5, configuration unit (B, B ') a first drive assembly (13, 14) is of the road finishing machine during operation of the It is arranged in a direction transverse to the direction of movement (A) and is preferably the crankshaft shaft of the internal combustion engine (13) and the three-phase generator (1).
The road finishing machine according to claim 4, wherein the first drive assembly is arranged such that the shaft of (4) is located sideways. 8. A road finishing machine according to one of claims 1 7, construction units (B, B ') a first drive assembly (13, 1 4) of the removable or detachable A road finishing machine characterized by being surrounded by a simple capsule type housing (16). 9. A road finishing machine according to one of claims 1 to 8, starting battery of the fuel tank and the internal combustion engine (13) that is housed in the configuration unit (B, B ') Features a road finishing machine. 10. A road finishing machine according to one of claims 1 9, detached configuration units (B,
Instead of B ′), a cable drum (30) is attached and fixed at a predetermined position of the chassis (1), and the cable drum (30) includes a power cable (31) for electric drive means, Road finishing machine, characterized in that the cable is drawn from the cable drum and connected to a frequency converter (15). 11. The method of claim 1 or road finishing machine according to 5, construction units (B, B ') is configured as an independent three-phase power supply unit, the three-phase power supply unit separate from the road finishing machine Road finishing machine characterized in that it is configured to be operated. 12. A road finisher according to claim 1 or 5, construction units (B, B ') is a road surface, characterized in that it comprises connecting members (23, 24) for the lifting device Finishing machine. 13. The road finishing machine according to claim 1, wherein the cab (12) comprises a first drive assembly (13, 1).
4) control / management means, which can be separated into a first drive assembly (13, 14 ).
A road finishing machine connected to 5). 14. The road finishing machine according to claim 1, wherein the cab (12) is mounted on the chassis (1) so that it can be lifted or tilted.