JP2710543B2 - Road construction screed for road finishing machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a road construction screed types according to a comprehensive part of claim 1.

[0002]

2. Description of the Related Art D-6800, Mannheim, Germany, NO. 2352 / 1.5 /
In the case of known road construction screed from 4.92 standing of Fegeru AG company brochure (telescopic screed and standard screed), each vibration system,
The entire screed body or rather the entire screed mass body is mounted so as to be excited and vibrated with the leveling plate. Leveling plate to vibration without serves as compaction device while the road surface material is treated, the One laying the leveling plate
On the surface of the layer of road material. Road construction screeds are often additionally provided with a rammer device that includes a rammer piece that operates in front of the leveling plate. In order to excite a large mass of both the screed body and the leveling plate so as to vibrate, a relatively large excitation force is required. Despite adding such large exciting force, a relatively small amplitude only occurs Shinano vibrations of the smoothing plate
No. Due to the vibration of the screed body, a high load is applied to the holding device and other components incorporated in the road surface screed. In the case of telescopic screeds, each screed component (main screed component and telescoping screed component) includes at least one vibrating device.

[0003]

Means for Solving the Problems The object of the present invention, introduction of vibration can be generated in spite of reduced excitation power, have sizes <br/> the smoothing plate of the vibration device amplitude it is to provide a type of road construction screed mentioned.

According to the invention, the above object is achieved by the features disclosed in the characterizing part of claim 1.

[0005] According to an embodiment of the invention , the leveling plate vibrates separately without exciting the screed body to an appreciable degree . The mass of the screed body and the mass of the road construction screed component disposed above the leveling plate contribute to the compaction work as a static mass. Screed body and divided the leveling plate 且 one vibration device directly to act on leveling plate, even though the excitation force is small, it is possible to increase the vibration amplitude of the leveling plate. In this way, the compaction action of the road surface material is improved
Can be . Moreover, the screed body, static mass of components and holding device integrated into the road construction screed, to strongly interfere raw Ji that the vibration of the longer leveling plate
Not be affected by force Since the mass of the leveling plate is small compared to the mass of the road construction screed, the vibration frequency of the leveling plate is precisely adjusted, just like the amplitude of the vibration,
And can be changed quickly.

According to an embodiment , the vertical vibrator acts directly on the leveling plate. The screed body and the road screed hardly contribute to vibration.
No. Screed body, leveling plate does not adversely ho Tondo effect on the vibration effect on the road surface material.

According to an embodiment of the invention, the unbalanced excitation mass body is directly and fixedly connected to the leveling plate. It is not necessary to vibrate the screed body to cause vibration of the leveling plate.

According to an embodiment of the present invention, the holding portion is provided.
Screed body with a road construction screed components therein provided with a timber is vibration isolation in about the leveling plate. This removes any forces arising from the vibrations of the leveling plate and possibly harmful to the road screed.
Can be .

[0009] According to an embodiment according to claim 5, a structure is provided which is simple and functionally reliable.
Resilient member is, in all of the work direction that may occur,
To divide the leveling plate from the screed body. Screed body is advantageous to configure the cutting device so that any problems a force to the leveling plate to lead to transfer raw Ji <br/> Rukoto without the leveling plate. The spring member or a rubber piece shows almost the same behavior at work moving the over a long service life. Besides,
These resilient element (member) is using the road construction screed
It can easily cope with undulating operating situations that occur during use .

According to the embodiment according to claim 6, in particular good
Good things are provided . Vibration is probably only be transmitted a small extent to the screed body via a joint.
Nevertheless, the vibrations of the leveling plate are almost independent of the screed body, so that large amplitude vibrations can be generated based on a small excitation force. By providing the joint, the amplitude of vibration of the smoothing plate is increased brought to increase of the distance from the joint axis. This is compaction
Supports action and leveling action. Because of the compaction
As the degree increases, the road surface material has a stronger amplitude.
However, the road surface material is still flexible and
In the front, which is not yet compacted,
This is because a large amplitude is applied to the operation.

[0011] Embodiment according to claim 7 and claim 8
According to the present invention, two preferable things are provided for connecting the leveling plate to the screed body via the joint.

[0012] According to the embodiment according to claim 9, it is advantageous that the drawbar securely positions the leveling plate with respect to the screed body. These drawbar is transmitted to the plate leveling traction movements of the screed body, and a position screed body is lifted during transportation movement of the road finishing machine
Oh holds the leveling plate place more significant than ground to Rutoki is adapted to be used for the purpose.

Further , according to an embodiment of the present invention,
If, rigid ones one 且 the structure is simple is provided. Minute
When is created moving near the edge of leveling the cross-sectional device plate is advantageous. This leveling plate vibrates uniformly over its length and width. The force generated by the vibration device is transmitted uniformly to the road surface material over the entire contact surface between the leveling plate and the road surface material.

According to the embodiment according to claim 11, the main screed and auxiliary screed is designed in the same structure obtained so that to achieve a uniform compaction effect across operating width.

[0015]

BRIEF DESCRIPTION OF have groups Dzu the accompanying drawings actual施例of the present invention will be described below. The road finishing machine F according to FIGS.
A traveling mechanism 2 (wheel or track laying gear) provided on the underframe 1 and driven by the central drive unit 3 is provided. At the front of the finishing machine F, a material reservoir 4 is arranged on the top surface of the underframe 1, and the road surface material is distributed from the material reservoir 4 to a rear end of the finishing machine F in a lateral direction. A conveyor device (not shown) for transporting to the device 6 is provided. Distributing road surface material to be laid product to form a flat surface, and the leveling of the road surface material and clamping solidify road construction screed B is attached to the finishing machine F by the side outrigger 5. The road construction screed B can be a standard screed having a constant working width or a telescopic screed having a variable working width. The illustrated embodiment is a telescopic screed with a stretchable auxiliary screed Z at the center of the main screed H and two transverse. (See FIGS. 2A and 2B) Adjustment of the auxiliary screed Z is performed for the purpose of adapting to the working width. The road surface application screed B can include a rammer device T. Rammer device T, when viewed in the working direction,
It is arranged at the front part of the road surface construction screed B. Moreover, the road surface screed B is provided with at least one vibration device V. In the illustrated embodiment, respectively the main screed H and each auxiliary screed Z includes a separate vibrator V.

FIGS. 3 and 4 show a screed B for road construction.
A portion, i.e., the main screed H or or transverse carrier is supported on a so-called <br/> basic scan Creed, (R, Fig. 1) a portion of the support auxiliary screed Z in
1 is a clear schematic illustration in cross section . Leveling plate 8 adapted to be placed on the road surface materials apex extends transversely to the working direction, a rear wall (reference numeral 7 is attached) and the front wall
(The back wall is on the opposite side across the top wall described later),
The wall (indicated by arrow B in FIG. 3), the side wall (FIG. 2)
As shown in (a), the lead line of the reference symbol Z
Open) and the open bottom on which the leveling plate 8 is mounted
Is disposed below position relative configured tunnel shape elongated screed body 7 by parts. The multiple cutting device E is provided between the smoothing plate 8 and the screed body 7. The dividing device E is, for example,
As a vibration isolator for the screed body 7
And it is arrange | positioned at the peripheral part of the screed main body 7. FIG.
Each cutting device E is, for example, the upper level resilient member 9 and the lower
It is equipped with a position of the resilient member 10. Resilient members 9 and 10
Is a spring member or piece of rubber that encapsulates the extension 11 of the screed body 7 between them and is held by a plurality of tension rods 12 of the leveling plate 8. These resilient members
9 and 10, so that a pretension can be applied if desired.
Has become. Screed body 7 so as not to contact the leveling plate 8 from above position.

In the road surface construction screed B of FIG.
The vibration device V inside the screed B for road surface is in a normal state.
Exciting quality that came to be driven to make a move up and down in the modal
Mer is <br/> vertical vibrator having an (excitation mass) 13. Excitation quality-mer 13, of the upper level field
It is held between the root 16 and the lower position of the spring 16. This
These springs have their bottom resting on a leveling plate 8 .
Ri, its top is in contact on the horizontal member 15. Lateral member 1
5 is fixedly connected to the leveling plate 8. Tension rod 17
It will have a positioning function of the excitation mass 13. When excited mass 13 is driven by a component of vertical motion, vibration force generated as a result for the leveling plate 8, directly, whereas being transmitted screed body 7 has a resilient
Vibrationally insulated from the leveling plate 8 via the dividing device E.
The relatively small excitation force, it is possible to generate vibrations (lead straight direction) large amplitude. Leveling plate 8 real qualitatively
Since the vibration in the lead straight direction, acting transversely to the vibration movement, it is possible to transmit the traction movements in the driving direction by the stopper device between the smoothing plate 8 and the screed body 7.

[0018] In the case of the embodiment according to FIG. 4, the interior of the vibration device V road construction screed B, the rotational drivable disproportionate mass as excitation mass (unbalanced m
ass) is a disproportionate mass vibration apparatus having a 20. The carrier 1 The imbalance Weight body 20 via a supporting device 19
8. The carrier 18 is placed on the leveling plate 8,
It is fixed directly or is fixed to an auxiliary mass 21 fixed to the leveling plate 8.

In the case of the embodiment according to FIG.
, When viewed towards the working direction 22, schematic horizontal
And the joint shaft 21 that Mashimasu extending transversely to the working direction 22
Are Oite <br/> supporting the front of the screed body 7 by fitting G to be caused to swing relative to the screed body 7 around the '. The joint shaft 21 ′ is disposed directly on the lower edge of the front side wall of the screed body 7. In this case,
When viewed in the working direction 22, the hand G
Between the front edge of the screed body 7 and the lower edge of the front side wall of the screed body 7
Are located. The indirect shaft 21 'is a swing shaft of the joint G.
Available. The leveling plate 8 is related to the screed body 7.
As a result, it can swing around the joint shaft 21 '. However, when the leveling plate 8 is vibrated, a particular motion component and the desired motion component in the front end of the leveling plate 8 遂
As it can be rows, upper position relative leveling plate 8 a joint axis 21 '
And this to replace the part after the front wall of the screed body 7
Ru can Tomo. The location of the joint G is indicated by the broken line.
2 shows a second position . In this case, indirect axis 2
1 'is located only in the joint G indicated by the broken line,
Is not placed. The front edge of the leveling plate 8 is the screed body
7, like the lower edge of the front side wall. Indirect shaft 21 ', can also be placed in front of the front wall of the screed body 7. On the rear side wall of the screed body 7 , the leveling plate 8 is connected to the screed body 7 via a cutting device E. Vibration device V on the leveling plate 8, straight
Contact and arrangement. Said vibration device V can be a vibration device V with a vertical vibrator according to FIG. 3 and an unbalanced excitation mass according to FIG.

The joint G is Ru <br/> can also consist configured to Rukoto can, or a continuous hinge member from a plurality of articulation points that are distributed over the width of the screed body 7. Regarding this point, the leveling plate 8 also in the front region so as to divide the screed body 7, it is possible to provide a spring member or a rubber member in the joint G.

In both of these embodiments, the force generated by the movement of the excitation masses 13, 20 does not cause any direct vibration of the screed body 7,
It is transmitted directly to the upper surface of the leveling plate 8 indicated by the reference numeral 14.

A plurality of vibrators can be arranged as described above over the width or length of the leveling plate 8. In the space of the upper to the vibration device V, it contributes to the generation of vibration
It can be arranged another structure member without road construction screed.

[0023] Ku things cause any vibrations to the screed body 7, cutting instrumentation having elasticity so as to transmit traction forces to be transmitted to the leveling plate 8 from screed body 7
Advantageously, the arrangement E is configured. In addition, the separating device E is configured to prevent the leveling plate 8 from dropping when the road surface screed is in the raised transport position.

[Brief description of the drawings]

FIG. 1 is a side view of a road finishing machine provided with a road construction screed.

FIG. 2 is a partial top view of the road finishing machine of FIG. 1;

FIG. 3 is a schematic diagram showing a cross section of a first embodiment of a road surface applied screed.

FIG. 4 is a schematic diagram showing a cross section of a second embodiment of a road surface application screed.

FIG. 5 shows a cross section of an additional embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Underframe 2 Traveling mechanism 3 Drive unit 4 Material storage 5 Outrigger 6 Material distribution device 7 Screed main body 8 Leveling plate 9,10 Resilient member 11 Extension part of screed main body 12 Pull rod 13 Exciting mass body 15 Horizontal member 16 Spring 17 drawbar 20 unbalance mass 21 'joint axis B road construction screed E decoupling device F road finishing machine G fitting H main screed V vibrator Z auxiliary screed

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 56-68010 (JP, U) JP-B 55-50523 (JP, B2)

Claims (11)

(57) [Claims] 1. A road construction screed for road finishing machines, oriented transversely to the road construction direction, the tunnel shape of the screed body plate leveling the bottom <br/> portion Ru is located internal having the smoothing plate is adapted to be location placing the road surface material top, further at least one vibration device
In the above road construction screed, so that the vibration of the smoothing plate (8) is not transmitted to the real qualitatively the screed body (7), the smoothing plate (8) is the risk <br/> lead body having a (7) is supported in the form of vibration , and
The vibration device (V) is directly leveling plate road construction screed, wherein arranged are that on the (8). Wherein said vibration device (V) comprises a vertical vibrator having an excitation protein dimer (13) to be excited to perform vibration movements lead straight, yet the smoothing plate (8) ,straight
Contact with the vertical vibrator
The screed according to claim 1, wherein a vibrator is arranged on the leveling plate (8) . Wherein the vibration device (V) comprises at least one unbalance exciter protein dimer (20), the smoothing plate (8)
Is directly affected by the unbalanced excitation mass (20).
So that the unbalanced excitation mass (20) is connected to the leveling plate (8).
Is secured to, according to claim 1, characterized in that the auxiliary substance-mer (21) is kicked set between the unbalance exciter protein dimer (20) and the smoothing plate (8) Road construction screed. That wherein the at least one cutting device (E) is provided as a vibration isolator for isolating the screed body (7) the <br/> smoothing plate relative to (8) The method according to any one of claims 1 to 3, wherein
Road construction screed on board . 5. The severing device according to claim 1, wherein said dividing device is provided with said leveling plate.
It acts on vertical movement direction of, yet the smoothing plate (8) and the scan <br/> Creed body (7) multiple resilient portion disposed between the
5. The material according to claim 4 , wherein said material has a material.
Road construction screed described in . When viewed in the 6. Operation industry direction (22), having that Mashimasu extending laterally <br/> Takashi Seki axis (21 ') with respect to a substantially horizontal and the work industry direction (22) Joint (G) is the road surface construction
Wherein at the front of the Creed screed body (7) and before
Serial provided between the smoothing plate (8), moreover when viewed in the work sector direction, at least one cutting device (E) is 該路
Provided at a rear portion of the surface construction screed, the smoothing plate (8)
There is described in any one of claims 1, characterized in that it is supported by the cutting device to vibrate (E) with respect to the screed body (7) to claim 5
Road construction screed was. Wherein said Takashi Seki axis (21 ') has, according to claim 6, characterized in that said screening <br/> are arranged in the region of the front lower edge of the de-body (7) Surface Construction screed. Wherein said Takashi Seki axis, the leveling plate to (8)
It is arranged in the upper Te, and the screed body (7) of the front wall of the front portion or rear when viewed in the work industry direction
Contractor, which is arranged in one of the
A road surface construction screed according to claim 6 . Wherein said resilient member (9, 10) is guided by the flat Gyo引 Chobo (12), and according to claim 5, characterized in that the turned so that can impart pretension has been <br/> road construction screed. Wherein said screed body (7) is extended in the form of bets <br/> tunnel over the smoothing plate (8) without contact with the smoothing plate (8), and the comprising a decompression unit of the smoothing plate (8) in the schematic flat <br/> line attitude (11), the respective extension portions (11) of <br/> upper position of the resilient member (9) and the lower position is supported between the resilient member (10), the lower position of the resilient member (10) is placed on the <br/> smoothing plate (8), moreover at least one outline
Provided substantially perpendicular to said drawbar (12) is the smoothing plate (8), said extension around the 該伸Zhang portion (11) without the drawbar (12) is in contact with the extension portion (11) extending Mashimasu Luke away from parts, or extends through said extension portion,
And any of claims 1 to 9, characterized in that it is supported by the upper position of the resilient member (9)
A road surface construction screed according to claim 1. Wherein said road construction screed (B) is the main screed and (H), at least one auxiliary screed (Z) adapted to be stretchable at the side of the main screed (H) the each screed said screening <br/> de body (7), and a leveling plate (8), moreover said main screed (H) and said each of said smoothing board auxiliary screed (Z) (8) at least one vibration device provided on has a (V), further at least one cutting instrumentation between the <br/> screed body the smoothing plate (8) (7) The device according to any one of claims 1 to 10 , characterized in that it has a position (E) and / or a joint (G).
Road construction screed on board .