JP4818289B2 - Self-propelled paving machine - Google Patents
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本発明は自走式舗装機械に関するものであり、特に、アスファルトなどの舗装材を第１ホッパと第２ホッパに収容し、１回の舗装作業で１乃至２種類の舗装材を敷き均すことができるマルチペーバに関するものである。 The present invention relates to a self-propelled paving machine, and in particular, a pavement material such as asphalt is accommodated in a first hopper and a second hopper, and one or two kinds of pavement materials are spread and spread in one pavement operation. It is related to the multi-paver that can do.
従来、受入ホッパに投入された舗装材を第１ホッパまたは第２ホッパに積み込むチャージングフィーダと、前記第１ホッパまたは第２ホッパの舗装材を機体後方の施工面へ搬送する各コンベヤと、第１ホッパの舗装材を施工面に拡散させる前側スクリュースプレッダおよび第２ホッパの舗装材を施工面に拡散させる後側スクリュースプレッダと、前側スクリュースプレッダで拡散された舗装材を敷き均す前側スクリードおよび後側スクリュースプレッダで拡散された舗装材を敷き均す後側スクリードとから成る舗装装置を備えた自走式舗装機械であって、前記舗装装置と自走用走行装置の各油圧アクチュエータに油圧ポンプを介して動力を供給するエンジンを搭載した自走式舗装機械が知られている。 Conventionally, a charging feeder for loading the pavement material put into the receiving hopper into the first hopper or the second hopper, each conveyor for conveying the pavement material of the first hopper or the second hopper to the construction surface behind the machine body, A front screw spreader that diffuses pavement material of 1 hopper to the construction surface, a rear screw spreader that diffuses pavement material of the second hopper to the construction surface, and a front screed that spreads the pavement material diffused by the front screw spreader and the rear A self-propelled pavement machine having a pavement device comprising a rear screed for spreading and leveling pavement material diffused by a side screw spreader, wherein a hydraulic pump is provided to each hydraulic actuator of the pavement device and the self-propelled travel device. There is known a self-propelled paving machine equipped with an engine that supplies power through the vehicle.
例えば、前側ホッパ（第１ホッパ）と後側ホッパ（第２ホッパ）とが自走車両に設けられた敷均機械（舗装機械）において、舗装材の積込フィーダ（チャージングフィーダ）が積込フレームの下端を受入ホッパに連結して設けられ、積込フレームの下端と排出端との中間部分に排出口が形成され、排出口に開閉蓋が開閉自在に設けられた舗装材の積込装置が、積込フィーダの排出口を前側ホッパの上方に、積込フィーダの排出端を後側ホッパの上方にそれぞれ位置させて自走車両に搭載された敷均機械が知られている（特許文献１参照）。 For example, in a floor leveling machine (paving machine) in which a front hopper (first hopper) and a rear hopper (second hopper) are provided in a self-propelled vehicle, a paving material loading feeder (charging feeder) is loaded. A pavement loading device provided with the lower end of the frame connected to a receiving hopper, a discharge port formed in the middle part between the lower end of the loading frame and the discharge end, and an open / close lid provided at the discharge port. However, a spreader machine is known that is mounted on a self-propelled vehicle with the discharge port of the loading feeder positioned above the front hopper and the discharge end of the loading feeder positioned above the rear hopper (Patent Literature). 1).
ここで、此種複数のホッパを備えた舗装機械は、１回の舗装作業で１乃至２種類の舗装材を敷き均すことができる。例えば、下地となる舗装材を敷き均した施工面上に、仕上げとなる舗装材を重ねて敷き均す場合は、前側ホッパ（第１ホッパ）に下地の舗装材を収容し、後側ホッパ（第２ホッパ）に仕上げの舗装材を収容して、舗装機械が自走しながら、２種類の舗装材を上下２層に敷き均すことができる。あるいは、車輪が通過する轍部分には耐久性の高い舗装材を敷き均し、他の部分には通常の舗装材を敷き均すといったように、道路幅の左右方向に異なる舗装材を敷き均すこともある。 Here, the pavement machine having a plurality of hoppers of this kind can spread and level one or two types of pavement materials in one pavement operation. For example, when pavement material to be finished is laid and leveled on the ground surface of the pavement material to be ground, the ground pavement material is accommodated in the front hopper (first hopper) and the rear hopper ( The finished pavement material is accommodated in the second hopper), and the two types of pavement material can be spread on the upper and lower layers while the pavement machine is self-propelled. Alternatively, pavement with different durability in the left and right direction of the road width, such as laying and leveling highly durable pavement on the heel part where the wheels pass, and laying and smoothing normal pavement on the other part. Sometimes.
上記のように、２種類の舗装材を上下２層に敷き均す、あるいは、左右に並んで敷き均す舗装作業では、予め、第１ホッパまたは第２ホッパの何れか一方に上記何れかの舗装材を収容しておき、チャージングフィーダから残りのホッパに舗装材を供給しながら、これら２種類の舗装材を機体後方の施工面へ搬送する各コンベヤや、この施工面の舗装材を前後のスクリードの前面に拡散する前後のスクリュースプレッダや、舗装材を敷き均す前後のスクリードから成る舗装装置ならびに走行装置を同時に駆動して、舗装機械が自走しながら１回の舗装作業で２種類の舗装材を敷き均す。舗装材の敷き均し作業中に第１ホッパまたは第２ホッパの舗装材が少なくなると、チャージングフィーダから２種類の舗装材を各別にホッパへ供給して連続的に舗装作業を行う。 As described above, in pavement work in which two kinds of pavement materials are spread on the upper and lower two layers, or on the left and right sides, either one of the above is applied to either the first hopper or the second hopper in advance. While storing the pavement material and supplying the pavement material from the charging feeder to the rest of the hopper, each of these two types of pavement material is transported to the construction surface at the rear of the machine, and the pavement material on this construction surface Two types of pavement machines can be driven at the same time, while the pavement machine and self-running pavement machine are driven at the same time by driving the screw spreader before and after spreading to the front of the screed and the screed before and after spreading the pavement material. Spread the paving material. When the pavement material of the first hopper or the second hopper is reduced during the pavement material leveling operation, two types of pavement materials are separately supplied from the charging feeder to the hopper, and the pavement operation is continuously performed.
また、第１ホッパおよび第２ホッパの双方へ同じ舗装材を収容して舗装作業を行う場合は、チャージングフィーダからその中間部分の排出口の開閉蓋を開閉調整して第１ホッパまたは第２ホッパへ交互にまたは同時に舗装材を供給しながら、これらの舗装材を機体後方の施工面へ搬送する各コンベヤや、この施工面の舗装材を前後のスクリードの前面に拡散する前後のスクリュースプレッダや、舗装材を敷き均す前後のスクリードから成る舗装装置ならびに走行装置を同時に駆動して、舗装機械が自走しながら１回の舗装作業で第１ホッパおよび第２ホッパに供給される舗装材を連続的に敷き均す。 When the same pavement material is accommodated in both the first hopper and the second hopper and the pavement work is performed, the first hopper or the second hopper is adjusted by opening and closing the opening / closing lid of the discharge port at the intermediate portion from the charging feeder. While supplying pavement materials alternately or simultaneously to the hopper, each conveyor conveys these pavement materials to the construction surface behind the machine, and screw spreaders before and after spreading the pavement material on this construction surface to the front of the front and rear screed A pavement device composed of a screed before and after pavement material and a traveling device are simultaneously driven, and a pavement material supplied to the first hopper and the second hopper in one pavement operation while the pavement machine is self-propelled. Lay out continuously.
このように、チャージングフィーダをフル稼働させながら、各コンベヤや前後のスクリュースプレッダ及びスクリードから成る舗装装置を定格運転し、さらに走行装置を駆動して機械を自走させるため、従来の此種舗装機械は、大きなエンジン出力が必要とされている。しかし、上記の通りチャージングフィーダを備えるマルチペーバにおいては、チャージングフィーダが大型であるうえにホッパやコンベヤなどの大型機器が複数配設されるため出力の大きなエンジンは設置場所が制約されて搭載スペースを確保できないので、２つの小さいエンジンを搭載して大きなエンジン出力が得られるようにしている。 In this way, while operating the charging feeder fully, the pavement device consisting of each conveyor and the front and rear screw spreaders and screeds is rated, and the drive device is driven to make the machine self-run. The machine needs a large engine power. However, in the multi-paver equipped with a charging feeder as described above, the charging feeder is large and a large number of large equipment such as hoppers and conveyors are installed. Therefore, it is possible to obtain a large engine output by installing two small engines.
また、特許文献１には、積込フィーダが上下に起倒自在に設けられており、積込装置の不使用時に積込フィーダの高さを低くできることが記載されている。したがって、敷均機械をトレーラに積載して輸送する際に、積載高さを低く抑えることができる。
特許文献１記載の発明は、アスファルトなどの舗装材を第１ホッパと第２ホッパに収容し、１回の舗装作業で１乃至２種類の舗装材を敷き均すために大きなエンジン出力が必要であり、前述したように、２つのエンジンを搭載している。したがって、敷均機械の重量が嵩むことになる。 The invention described in Patent Document 1 requires a large engine output to store pavement materials such as asphalt in the first hopper and the second hopper and spread one or two kinds of pavement materials in one paving operation. Yes, as mentioned above, two engines are installed. Therefore, the weight of the spreading machine increases.
従来の此種大型の舗装機械は、エンジン出力が132〜140kw程度のエンジンを２基搭載しており、重量が27〜28トンになる。舗装機械を積載するトレーラも大型であるため車両重量が22〜23トンあり、舗装機械を積載したトレーラの総重量は49〜51トンにもなる。 A conventional large pavement machine of this kind is equipped with two engines with an engine output of about 132 to 140 kW, and the weight is 27 to 28 tons. The trailer carrying the paving machine is also large, so the weight of the vehicle is 22-23 tons, and the total weight of the trailer carrying the paving machine is 49-51 tons.
ここで、国内の道路を通行する車両は、道路法により下記のような制限が課せられている。この制限を超える車両は、道路・交通および環境に支障を及ぼす恐れがあるため、原則として道路の通行ができない。 Here, the following restrictions are imposed on vehicles traveling on domestic roads by the Road Law. In principle, vehicles exceeding this limit may not be able to pass on the road because they may interfere with the road / traffic and environment.
上記一般的制限値を超える車両を特殊車両といい、道路を通行するには、道路管理者の許可（特殊車両通行許可）が必要になる。特殊車両通行許可の取得については幾つかの段階があり、総重量が45トンを超えると下記のように許可申請が難しくなる。
（１）国土交通省の地方整備局への申請となり、許可の取得に数ヶ月かかる。
（２）昼間の通行が不可となり、夜間通行となる。
（３）通行する道路が指定され、目的地までの許可が下りない場合もある。
A vehicle exceeding the above general limit value is called a special vehicle, and a road administrator's permission (special vehicle passage permission) is required to pass through the road. There are several stages of obtaining special vehicle traffic permission. If the total weight exceeds 45 tons, it becomes difficult to apply for permission as follows.
(1) Application to the Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, and it takes several months to obtain permission.
(2) Daytime traffic becomes impossible and night traffic.
(3) There are cases where a road to be passed is designated and permission to the destination is not given.
これに対して、総重量が45トン以下の車両に対しては、
（ａ）国土交通省の各道路管理事務所への申請であるため、審査が通り易く、許可の取得も比較的短時間である。
（ｂ）昼間の通行が可能となり、高速道路の通行も可能である。
（ｃ）高速道路から目的地付近までの距離についての審査となり、許可が取得し易い。
In contrast, for vehicles with a total weight of 45 tons or less,
(A) Since it is an application to each road management office of the Ministry of Land, Infrastructure, Transport and Tourism, the examination is easy to pass and the acquisition of permission is relatively short.
(B) Daytime traffic is possible and highway traffic is also possible.
(C) It becomes examination about the distance from the expressway to the vicinity of the destination, and it is easy to obtain permission.
このような理由から、総重量を45トン以下に抑えるために、舗装機械自体の重量を２３トン程度まで軽量化することが望まれている。舗装機械を小型にして軽量化を図ることも考えられるが、その場合は、舗装幅や施工時間などの舗装能力が低下することになる。 For these reasons, in order to keep the total weight to 45 tons or less, it is desired to reduce the weight of the paving machine itself to about 23 tons. Although it is conceivable to reduce the weight of the paving machine and reduce the weight, in that case, the paving capability such as the paving width and construction time will be reduced.
そこで、従来と同程度の舗装能力を保持したまま、舗装機械自体の重量を軽量化するために解決すべき技術的課題が生じてくるのであり、本発明はこの課題を解決することを目的とする。 Therefore, there is a technical problem to be solved in order to reduce the weight of the paving machine itself while maintaining the same level of paving capability as before, and the present invention aims to solve this problem. To do.
本発明は上記目的を達成するために提案されたものであり、請求項１記載の発明は、受入ホッパに投入された舗装材を第１ホッパまたは第２ホッパに積み込むチャージングフィーダと、前記第１ホッパまたは第２ホッパの舗装材を機体後方の施工面へ搬送する各コンベヤと、第１ホッパの舗装材を施工面に拡散させる前側スクリュースプレッダおよび第２ホッパの舗装材を施工面に拡散させる後側スクリュースプレッダと、前側スクリュースプレッダで拡散された舗装材および後側スクリュースプレッダで拡散された舗装材を敷き均す前側スクリードおよび（または）後側スクリードとから成る舗装装置を備えた自走式舗装機械であって、前記舗装装置と自走用走行装置の各油圧アクチュエータに油圧ポンプを介して動力を供給するエンジンを搭載した自走式舗装機械において、上記エンジンは、上記舗装装置と自走用走行装置の各油圧アクチュエータの全てが同時に定格運転されるのに必要な動力の略２分の１の動力を供給する小さいエンジン出力とするとともに、当該小さいエンジン出力に対応するように、舗装材を上記第２ホッパに積み込む場合は、上記自走式舗装機械を停車させ、上記チャージングフィーダのみが高速運転されるのに必要な動力を供給可能にする、一方、舗装作業を行う場合は、上記自走式舗装機械が低速走行され、且つ、上記舗装材を第１ホッパに積み込むチャージングフィーダが低速運転され、且つ、その他の上記舗装装置が定格運転されるのに必要な動力を供給可能にするエンジンを搭載したことを特徴とする自走式舗装機械を提供する。 The present invention has been proposed to achieve the above object, and the invention according to claim 1 is characterized in that the charging feeder for loading the pavement material put into the receiving hopper into the first hopper or the second hopper, and the first Each conveyor that conveys the pavement material of the first hopper or the second hopper to the construction surface behind the machine body, the front screw spreader that diffuses the pavement material of the first hopper to the construction surface, and the pavement material of the second hopper are diffused to the construction surface. Self-propelled with a pavement device comprising a rear screw spreader, a pavement material diffused by the front screw spreader, and a front screed and / or a rear screed for spreading the pavement material diffused by the rear screw spreader An engine for supplying power to each hydraulic actuator of the pavement device and the self-propelled traveling device via a hydraulic pump. In the mounted self-propelled paving machine, the engine supplies approximately half of the power required for rated operation of all the hydraulic actuators of the pavement device and the self-propelled traveling device at the same time. When loading the paving material into the second hopper so as to correspond to the small engine output, the self-propelled paving machine is stopped and only the charging feeder is operated at high speed. On the other hand, when pavement work is performed, the self-propelled paving machine is driven at a low speed, and the charging feeder for loading the pavement material on the first hopper is operated at a low speed, and A self-propelled paving machine is provided, which is equipped with an engine capable of supplying power necessary for rated operation of the other paving apparatuses.
この構成によれば、チャージングフィーダや各コンベヤなどから成る舗装装置と、自走用走行装置とを１つのエンジンにて駆動するため、複数のエンジンが搭載された舗装機械に比べてエンジン出力が小さいが、前記の各舗装装置や走行装置を同時に駆動せず、舗装作業に支障を来たさない範囲で分割して駆動することなどにより、舗装施工能力は従来の舗装機械とほぼ同等に維持できる。例えば、舗装作業前に予め第２ホッパへ舗装材を供給するときは、走行装置を駆動しないで舗装機械を停止させ、チャージングフィーダのみを高速運転でフル稼働する。したがって、１つのエンジン出力（定格出力132kw程度）でもチャージングフィーダは十分なる駆動力で舗装材を第２ホッパへ供給する。このように舗装材を第２ホッパへ供給する間は、舗装機械を停車させ舗装作業を中断することになるが、チャージングフィーダのフル稼働により、短時間（３分程度）のうちに収容できる。 According to this configuration, since the pavement device composed of the charging feeder and each conveyor and the self-propelled travel device are driven by one engine, the engine output is higher than that of a pavement machine equipped with a plurality of engines. Although it is small, the paving work capacity is maintained almost the same as that of conventional paving machines by not driving the above paving equipment and traveling equipment at the same time, but by dividing and driving within the range that does not hinder paving work. it can. For example, when the paving material is supplied to the second hopper in advance before paving work, the paving machine is stopped without driving the traveling device, and only the charging feeder is fully operated at high speed. Accordingly, the charging feeder supplies the paving material to the second hopper with sufficient driving force even with one engine output (rated output of about 132 kw). In this way, while the paving material is supplied to the second hopper, the paving machine is stopped and the paving operation is interrupted, but can be accommodated in a short time (about 3 minutes) by full operation of the charging feeder. .
次に、チャージングフィーダを低速運転で駆動しながら第１ホッパへ舗装材を供給しつつ、この第１ホッパの舗装材と予め蓄えられた第２ホッパからの舗装材とを機体後方の施工面へ搬送する各コンベヤと、この施工面の舗装材を前後のスクリードの前面に拡散する前後のスクリュースプレッダと、舗装材を敷き均す前後のスクリードから成るその他の上記舗装装置ならびに走行装置を定格運転で駆動することにより、１つのエンジン出力（定格出力132kw程度）にて従来と同様に、舗装機械が自走しながら１回の舗装作業で１乃至２種類の舗装材を敷き均すことができる。このようにして舗装作業は第２ホッパに予め蓄えられた舗装材が消費されて無くなるまで舗装作業を行うことができる。第２ホッパの舗装材が消費されたときは、前述の通り、舗装機械を停車させ舗装作業を短時間（３分程度）中断して、チャージングフィーダのフル稼働により舗装材を補充する。 Next, while the charging feeder is driven at low speed, the pavement material is supplied to the first hopper, and the pavement material of the first hopper and the pavement material stored in advance from the second hopper are connected to the construction surface behind the aircraft. Rated operation of each of the above conveyors and traveling devices, consisting of each conveyor that transports to the front, the screw spreader before and after spreading the pavement material of this construction surface to the front of the front and rear screed, and the screed before and after spreading the pavement material By driving with, one or two kinds of pavement materials can be laid and leveled in one paving operation while the paving machine is self-propelled at one engine output (rated output of about 132kw) as before. . In this way, the paving operation can be performed until the paving material stored in advance in the second hopper is consumed and disappears. When the paving material of the second hopper is consumed, as described above, the paving machine is stopped, the paving work is interrupted for a short time (about 3 minutes), and the paving material is replenished by full operation of the charging feeder.
請求項２記載の発明は、上記第２ホッパは、第１ホッパの後上部に設けられ、且つ、第１ホッパよりも収容量が大であることを特徴とする請求項１記載の舗装機械を提供する。 According to a second aspect of the present invention, there is provided the paving machine according to the first aspect, wherein the second hopper is provided at a rear upper part of the first hopper and has a larger accommodation amount than the first hopper. provide.
この構成によれば、第１ホッパの後上部に第２ホッパが設けられており、該第２ホッパは第１ホッパよりも収容量（６ｍ３程度）が大であるので、第２ホッパに先ずダンプカー1台分（１０トン程度）の舗装材を入れてしまう。この際チャージングフィーダのみを高速運転でフル稼働して多量の舗装材を第２ホッパに収容する。次に、別のダンプカーを押しながらチャージングフィーダを低速運転で駆動して第１ホッパに適量の舗装材を供給しながら、第１ホッパと第２ホッパの舗装材を搬送する各コンベヤや前後のスクリュースプレッダ及びスクリードから成る舗装装置ならびに走行装置を駆動して舗装機械を自走させ、１回の舗装作業で第１ホッパの舗装材と第２ホッパの舗装材の１乃至２種類の舗装材を同時に敷き均す。先に舗装材を収容した第２ホッパは収容量（６ｍ３程度）が大であるため、舗装作業中に第２ホッパへ舗装材を供給しなくても、所定の距離は舗装作業を行うことができる。 According to this configuration, the second hopper is provided at the rear upper part of the first hopper, and the second hopper has a larger accommodation amount (about 6 m 3 ) than the first hopper. Put the pavement material for one dump truck (about 10 tons). At this time, only the charging feeder is fully operated at a high speed to accommodate a large amount of paving material in the second hopper. Next, while pushing another dump truck, the charging feeder is driven at a low speed operation to supply an appropriate amount of paving material to the first hopper, while conveying the paving materials of the first hopper and the second hopper, A pavement device composed of a screw spreader and a screed and a traveling device are driven to cause the pavement machine to self-propel, so that one or two kinds of pavement materials of the first hopper and the second hopper can be produced in one paving operation. Spread the floor at the same time. The second hopper that has previously stored the paving material has a large storage capacity (about 6 m 3 ), so the paving work should be performed for a predetermined distance without supplying the paving material to the second hopper during the paving work. Can do.
請求項１記載の発明は、チャージングフィーダや各コンベヤなどから成る舗装装置と、自走用走行装置とを１つのエンジンにて駆動するため、複数のエンジンが搭載された舗装機械に比べて舗装機械自体の重量を軽量化することができ、舗装機械を積載したトレーラの総重量を45トン以下に抑えることができる。しかも、舗装施工能力は従来の舗装機械とほぼ同等に維持できる。したがって、特殊車両通行許可の取得が簡単となり、舗装機械の施工現場への輸送が容易となる。 According to the first aspect of the present invention, the pavement device including the charging feeder and each conveyor and the self-propelled traveling device are driven by one engine, so that the pavement is compared with a pavement machine equipped with a plurality of engines. The weight of the machine itself can be reduced, and the total weight of the trailer loaded with the paving machine can be kept below 45 tons. Moreover, the pavement construction capacity can be maintained almost equal to that of the conventional paving machine. Therefore, it is easy to obtain permission to pass special vehicles, and transportation of the paving machine to the construction site is facilitated.
請求項２記載の発明は、第２ホッパは、第１ホッパの後上部に設けられ、且つ、第１ホッパよりも収容量が大であるので、先ずチャージングフィーダのみを高速運転でフル稼働して多量の舗装材を第２ホッパに収容し、舗装作業中に第２ホッパへ舗装材を供給しなくても、所定の距離は舗装作業を行うことができる。 In the invention according to claim 2, since the second hopper is provided at the upper rear portion of the first hopper and has a larger storage capacity than the first hopper, only the charging feeder is first fully operated at high speed. Even if a large amount of paving material is accommodated in the second hopper and the paving material is not supplied to the second hopper during the paving operation, the paving operation can be performed for a predetermined distance.
また、第１ホッパおよび第２ホッパをほぼ同じ高さで前後に配置する構成に比べて、第２ホッパを第１ホッパの後上部に設けた構成では、バーフィーダコンベヤやスクリューコンベヤなどの搬送装置を上下にラップさせて配置することができ、車体の前後長さを短くして舗装機械自体の重量を軽量化することができる。 Compared with the configuration in which the first hopper and the second hopper are arranged at the front and back at substantially the same height, in the configuration in which the second hopper is provided at the rear upper part of the first hopper, a conveying device such as a bar feeder conveyor or a screw conveyor Can be arranged by wrapping them up and down, and the weight of the paving machine itself can be reduced by shortening the longitudinal length of the vehicle body.
以下、本発明に係る舗装機械および舗装方法について、好適な実施例をあげて説明する。従来と同程度の同じ舗装能力を保持したまま、舗装機械自体の重量を軽量化するという目的を達成するために、本発明は、受入ホッパに投入された舗装材を第１ホッパまたは第２ホッパに積み込むチャージングフィーダと、前記第１ホッパまたは第２ホッパの舗装材を機体後方の施工面へ搬送する各コンベヤと、第１ホッパの舗装材を施工面に拡散させる前側スクリュースプレッダおよび第２ホッパの舗装材を施工面に拡散させる後側スクリュースプレッダと、前側スクリュースプレッダで拡散された舗装材および後側スクリュースプレッダで拡散された舗装材を敷き均す前側スクリードおよび（または）後側スクリードとから成る舗装装置を備えた自走式舗装機械であって、前記舗装装置と自走用走行装置の各油圧アクチュエータに油圧ポンプを介して動力を供給するエンジンを搭載した自走式舗装機械において、上記エンジンは、上記舗装装置と自走用走行装置の各油圧アクチュエータの全てが同時に定格運転されるのに必要な動力の略２分の１の動力を供給する小さいエンジン出力とするとともに、当該小さいエンジン出力に対応するように、舗装材を上記第２ホッパに積み込む場合は、上記自走式舗装機械を停車させ、上記チャージングフィーダのみが高速運転されるのに必要な動力を供給可能にする、一方、舗装作業を行う場合は、上記自走式舗装機械が低速走行され、且つ、上記舗装材を第１ホッパに積み込むチャージングフィーダが低速運転され、且つ、その他の上記舗装装置が定格運転されるのに必要な動力を供給可能にするエンジンを搭載したことにより実現した。 Hereinafter, the paving machine and the paving method according to the present invention will be described with reference to preferred embodiments. In order to achieve the object of reducing the weight of the paving machine itself while maintaining the same level of paving capability as before, the present invention uses the first hopper or the second hopper as the paving material put into the receiving hopper. A charging feeder to be loaded on each of the conveyors, each conveyor for transporting the pavement material of the first hopper or the second hopper to a construction surface behind the machine body, a front screw spreader and a second hopper for diffusing the pavement material of the first hopper to the construction surface A rear screw spreader that diffuses the pavement material on the construction surface, and a front screed and / or rear screed that spreads the pavement material diffused by the front screw spreader and the pavement material diffused by the rear screw spreader. A self-propelled pavement machine comprising a pavement device, wherein each of the hydraulic actuators of the pavement device and the self-propelled travel device has a hydraulic position. In a self-propelled pavement machine equipped with an engine that supplies power via a pump, the engine has the power necessary for rated operation of all the hydraulic actuators of the pavement device and the self-propelled travel device at the same time. When the pavement material is loaded on the second hopper so as to correspond to the small engine output, which supplies about half the power, the self-propelled paving machine is stopped, Only the charging feeder can supply power necessary for high-speed operation. On the other hand, when pavement work is performed, the self-propelled paver is driven at a low speed, and the pavement material is supplied to the first hopper. This is realized by installing an engine that enables the charging feeder to be loaded to operate at low speed and to supply the power necessary for rated operation of the other paving devices. .
図１は舗装機械の一例としてマルチペーバ１０を示す側面図である。該マルチペーバ１０は左右一対のクローラ１１に支持された車体１２を有し、該車体１２には前記クローラ１１の略中央位置の上部にエンジン１３が搭載されている。本発明のマルチペーバ１０には、１つのエンジン１３のみが搭載されており、後述する舗装装置と走行装置などすべての駆動装置を１つのエンジン出力にて駆動するように構成されている。当該舗装機械が自走する際は、前記エンジン１３のエンジン出力により、走行装置を構成する走行モータ１４が回転して、クローラ１１が駆動されて車体１２が自走する。 FIG. 1 is a side view showing a multi-paver 10 as an example of a paving machine. The multi-paver 10 has a vehicle body 12 supported by a pair of left and right crawlers 11, and an engine 13 is mounted on the vehicle body 12 at an upper portion of a substantially central position of the crawler 11. The multi-paver 10 of the present invention is equipped with only one engine 13 and is configured to drive all driving devices such as a paving device and a traveling device described later with one engine output. When the paving machine self-propels, the traveling motor 14 constituting the traveling device is rotated by the engine output of the engine 13, the crawler 11 is driven, and the vehicle body 12 is self-propelled.
マルチペーバ１０は、１回の舗装作業で異なる２種類の舗装材を同時にまたは同種類の舗装材を同時に上下２層に敷き均すことができるように、それぞれの舗装材を収容するための複数のホッパと、敷き均し装置が備えられている。同図に示すように、車体１２の前部（図中左方部）に第１ホッパ１５が設けられ、該第１ホッパ１５の後上部に、第２ホッパ１６が設けられている。すなわち、エンジン１３の前側で低い位置に第１ホッパ１５が設置され、エンジン１３の後側で高い位置に第２ホッパ１６が設置されている。 The multi-paver 10 has a plurality of pavement materials for accommodating each pavement material so that two different types of pavement materials can be laid on the upper and lower layers simultaneously in one pavement operation. A hopper and leveling device are provided. As shown in the figure, a first hopper 15 is provided at the front part (left part in the figure) of the vehicle body 12, and a second hopper 16 is provided at the rear upper part of the first hopper 15. That is, the first hopper 15 is installed at a low position on the front side of the engine 13, and the second hopper 16 is installed at a high position on the rear side of the engine 13.
前記車体１２の前側には、舗装材の受入ホッパ１７とチャージングフィーダ１８が設けられている。チャージングフィーダ１８は、前部を低く後部を高く傾斜して取り付けられている。該チャージングフィーダ１８はエンジン１３の必要なエンジン出力にて駆動され、ダンプカー（図示せず）から受入ホッパ１７に投入された舗装材をチャージングフィーダ１８の上方へ移送する。 A pavement receiving hopper 17 and a charging feeder 18 are provided on the front side of the vehicle body 12. The charging feeder 18 is attached with the front portion lowered and the rear portion inclined higher. The charging feeder 18 is driven by a necessary engine output of the engine 13 and transfers the pavement material put into the receiving hopper 17 from a dump truck (not shown) to the upper side of the charging feeder 18.
ここで、チャージングフィーダ１８には移送経路の途中に排出口１８ｂが開閉自在に設けられており、排出口１８ｂを閉鎖した状態では、受入ホッパ１７から移送されてくる舗装材はすべてチャージングフィーダ１８の上端まで移送され、上端に設けた排出部１８ａから舗装材を排出して第２ホッパ１６へ供給する。排出口１８ｂを閉鎖した状態では、受入ホッパ１７からチャージングフィーダ１８の一番高い位置まで舗装材を移送するため、第２ホッパへ舗装材を供給するときは、チャージングフィーダを高速運転でフル稼働し、小さいエンジン１３の1台分のエンジン出力（110kw程度）を必要とする。 Here, the charging feeder 18 is provided with a discharge port 18b that can be opened and closed in the middle of the transfer path. When the discharge port 18b is closed, all the paving material transferred from the receiving hopper 17 is charged. The pavement material is discharged from a discharge portion 18 a provided at the upper end and supplied to the second hopper 16. When the discharge port 18b is closed, the pavement material is transferred from the receiving hopper 17 to the highest position of the charging feeder 18. Therefore, when supplying the pavement material to the second hopper, the charging feeder is full at high speed. It operates and requires engine output (about 110 kW) for one small engine 13.
これに対して、チャージングフィーダ１８の排出口１８ｂを開放すると、受入ホッパ１７から移送されてくる舗装材が途中に設けた排出口１８ｂから排出され、第１ホッパ１５に収容される。排出口１８ｂを開放した状態では、受入ホッパ１７から移送されてくる舗装材がすべて第１ホッパ１５に収容されるが、チャージングフィーダ１８の低い位置までしか舗装材を移送しないので、チャージングフィーダは低速運転でよく、必要とされるエンジン出力は少ない。 On the other hand, when the discharge port 18 b of the charging feeder 18 is opened, the pavement material transferred from the receiving hopper 17 is discharged from the discharge port 18 b provided in the middle and is stored in the first hopper 15. In the state where the discharge port 18b is opened, all the pavement material transferred from the receiving hopper 17 is accommodated in the first hopper 15, but since the pavement material is transferred only to a lower position of the charging feeder 18, the charging feeder Can be operated at low speed and requires less engine power.
第２ホッパ１６は第１ホッパ１５よりも収容量が大であり、ほぼ２倍の収容量を有している。例えば、第１ホッパ１５の収容量が３m3であるとすれば、第２ホッパ１６の収容量は６m3程度となる。これは、後述するように異なる２種類の舗装材を敷き均す場合に、予め第２ホッパ１６に多量の舗装材を収容しておき、舗装機械１０の自走中は第２ホッパ１６へ舗装材を供給しないためである。 The second hopper 16 has a larger storage capacity than the first hopper 15 and has approximately twice the storage capacity. For example, if the capacity of the first hopper 15 is 3 m 3, the capacity of the second hopper 16 is about 6 m 3. As described later, when two different types of pavement materials are spread and leveled, a large amount of pavement material is accommodated in the second hopper 16 in advance, and the second hopper 16 is paved while the pavement machine 10 is self-propelled. This is because no material is supplied.
チャージングフィーダ１８の駆動にて第１ホッパ１５に収容される舗装材は、バーフィーダコンベヤ（図示せず）の駆動により前側スクリュースプレッダ２２へ送られて道路の施工面に拡散され、該前側スクリュースプレッダ２１で拡散された舗装材は前側スクリード２２で敷き均される。また、第２ホッパ１６に収容された舗装材は、車体１２の進行方向に回転軸が設置されたスクリューコンベヤ２３の駆動により後側スクリュースプレッダ２４へ送られて道路の施工面に拡散され、該後側スクリュースプレッダ２４で拡散された舗装材は後側スクリード２５で敷き均される。 The pavement material accommodated in the first hopper 15 by the driving of the charging feeder 18 is sent to the front screw spreader 22 by the drive of a bar feeder conveyor (not shown) and diffused on the construction surface of the road. The pavement material diffused by the spreader 21 is spread by the front screed 22. Further, the pavement material accommodated in the second hopper 16 is sent to the rear screw spreader 24 by the drive of the screw conveyor 23 in which the rotation shaft is installed in the traveling direction of the vehicle body 12, and is diffused to the road construction surface. The pavement material diffused by the rear screw spreader 24 is spread and smoothed by the rear screed 25.
舗装作業を行うときは、第1ホッパへ舗装材を供給するチャージングフィーダ１８の低速運転と、バーフィーダコンベヤ及びスクリューコンベヤ２３（以下、各コンベヤという）や前後のスクリュースプレッダ２１,２４及びスクリード２２,２５から成る舗装装置ならびに走行装置の定格運転は、小さいエンジン１３の必要なエンジン出力（130kw程度）により駆動される。 When pavement work is performed, the charging feeder 18 for supplying pavement material to the first hopper is operated at low speed, the bar feeder conveyor and screw conveyor 23 (hereinafter referred to as each conveyor), the front and rear screw spreaders 21 and 24, and the screed 22. , 25, and the rated operation of the traveling device is driven by the required engine output of the small engine 13 (about 130 kw).
このように舗装作業に支障を来たさない範囲で、第２ホッパへ舗装材を供給するときと、舗装作業とに分割して、舗装装置と走行装置とを駆動することにより、必要とするエンジン出力110kw〜130kw程度の最大値、即ち、エンジン出力（定格出力132kw程度）でも舗装施工能力は従来の舗装機械とほぼ同等に維持できる。 As long as the pavement material is supplied to the second hopper and divided into the pavement operation within the range that does not hinder the pavement operation, it is necessary by driving the pavement device and the traveling device. Even with a maximum value of engine output 110 kw to 130 kw, that is, engine output (rated output 132 kw), the pavement construction capacity can be maintained almost equal to that of a conventional pavement machine.
チャージングフィーダ１８は枢着ピン１９にて車体１２に支持されているが、該枢着ピン１９を回動中心として上下に起倒自在に形成されている。したがって、マルチペーバをトレーラに積載して輸送する際には、該チャージングフィーダ１８を倒回することにより、積載高さを低く抑えることができる。 The charging feeder 18 is supported on the vehicle body 12 by a pivot pin 19, and is formed so as to be able to rise and fall with the pivot pin 19 as a rotation center. Therefore, when the multi-paver is loaded on the trailer and transported, the loading height can be kept low by turning over the charging feeder 18.
また、第２ホッパ１６を第１ホッパ１５の後上部に設けた構成では、バーフィーダコンベヤやスクリューコンベヤ２３などの搬送装置を上下にラップさせて配置することができ、車体１２の前後長さを短くしてマルチペーバ１０自体の重量を軽量化することができる。 Further, in the configuration in which the second hopper 16 is provided in the rear upper part of the first hopper 15, a conveying device such as a bar feeder conveyor or a screw conveyor 23 can be vertically wrapped so that the longitudinal length of the vehicle body 12 can be increased. The weight of the multi-paver 10 itself can be reduced by shortening the length.
次に、本発明に係る舗装機械にて、１回の舗装作業で２種類の舗装材を敷き均す作業手順を説明する。本発明のマルチペーバ１０には、１つのエンジン１３のみが搭載されており、１つのエンジン出力にて走行モータ１４やクローラ１１などの走行装置を駆動するとともに、チャージングフィーダ１８を駆動して第１ホッパ１５と第２ホッパ１６へ舗装材を供給し、さらに、車体１２を走行させながら、各コンベヤや前後のスクリュースプレッダ２１，２４及びスクリード２２，２５から成る舗装装置を駆動することになる。したがって、複数のエンジンを搭載した従来の舗装機械と比べて、エンジン出力が小さいため、舗装作業に支障を来たさない範囲で分割して駆動装置を駆動する。 Next, an operation procedure for spreading and leveling two kinds of paving materials in one paving operation using the paving machine according to the present invention will be described. The multi-paver 10 of the present invention is equipped with only one engine 13, and the driving device such as the driving motor 14 and the crawler 11 is driven by one engine output, and the charging feeder 18 is driven to drive the first. Pavement is supplied to the hopper 15 and the second hopper 16, and further, while the vehicle body 12 is running, the pavement device including the conveyors, the front and rear screw spreaders 21 and 24, and the screeds 22 and 25 is driven. Therefore, since the engine output is smaller than that of a conventional pavement machine equipped with a plurality of engines, the drive device is driven in a range that does not hinder pavement work.
先ず、車体１２が停止した状態で第２ホッパ１６へ舗装材を供給する。チャージングフィーダ１８の排出口１８ｂは閉鎖しておく。ダンプカーから受入ホッパ１７へ投入された舗装材は、チャージングフィーダ１８を高速運転でフル稼働して、最上端の排出部１８ａまで移送され、ここから落下させて第２ホッパ１６へ予め収容しておく。舗装材を第２ホッパ１６へ供給しているときは、各コンベヤなどから成るその他の舗装装置と、走行モータ１４から成る走行装置は停止させておく。したがって、１つのエンジン出力（定格出力132kw程度）でも、チャージングフィーダ１８は十分なる駆動力で舗装材を第２ホッパ１６へ供給することができる。 First, the paving material is supplied to the second hopper 16 with the vehicle body 12 stopped. The discharge port 18b of the charging feeder 18 is closed. The pavement material thrown into the receiving hopper 17 from the dump truck is fully operated by the high-speed operation of the charging feeder 18, transferred to the uppermost discharge unit 18 a, dropped from here, and stored in the second hopper 16 in advance. deep. When the pavement material is supplied to the second hopper 16, the other pavement devices including the conveyors and the travel device including the travel motor 14 are stopped. Therefore, the charging feeder 18 can supply the paving material to the second hopper 16 with sufficient driving force even with one engine output (rated output of about 132 kw).
次に、第１ホッパ１５へ舗装材を供給しながら、車体１２を走行させて、第１ホッパ１５の舗装材と第２ホッパ１６の舗装材が敷き均される。このときチャージングフィーダ１８の排出口１８ｂは開放しておく。ダンプカーから受入ホッパ１７へ投入された舗装材は、チャージングフィーダ１８を低速運転で駆動して、途中の排出口１８ｂから落下させ、第１ホッパ１５へ収容する。そして、バーフィーダコンベヤ（図示せず）の駆動により、第１ホッパ１５の舗装材を前側スクリュースプレッダ２２へ送って道路の施工面に拡散するとともに、スクリューコンベヤ２３の駆動により、第２ホッパ１６の舗装材を後側スクリュースプレッダ２４へ送って道路の施工面に拡散する。 Next, the vehicle body 12 is run while supplying the pavement material to the first hopper 15, and the pavement material of the first hopper 15 and the pavement material of the second hopper 16 are spread and leveled. At this time, the discharge port 18b of the charging feeder 18 is kept open. The pavement material thrown into the receiving hopper 17 from the dump truck is driven by the charging feeder 18 at a low speed operation, dropped from the discharge port 18b in the middle, and stored in the first hopper 15. Then, by driving a bar feeder conveyor (not shown), the pavement material of the first hopper 15 is sent to the front screw spreader 22 and diffused on the construction surface of the road, and by driving the screw conveyor 23, the second hopper 16 The pavement material is sent to the rear screw spreader 24 and diffused on the construction surface of the road.
上記舗装装置を駆動しながら、走行モータ１４を駆動して車体１２を自走させると、前側スクリュースプレッダ２２で拡散された第１ホッパ１５の舗装材が前側スクリード２２で敷き均され、後側スクリュースプレッダ２４で拡散された第２ホッパ１６の舗装材が後側スクリード２４で敷き均される。なお、車体１２が自走しているときは、第２ホッパ１６への舗装材供給は行わない。前述したように、第２ホッパ１６の収容量は第１ホッパ１５よりも大であるので、第１ホッパ１５へ舗装材を供給しつつ、第２ホッパ１６の舗装材がなくなるまで、敷き均し作業を続けることが可能である。 When the vehicle motor 12 is driven by driving the traveling motor 14 while driving the paving apparatus, the paving material of the first hopper 15 diffused by the front screw spreader 22 is spread by the front screed 22, and the rear screw The paving material of the second hopper 16 diffused by the spreader 24 is spread and leveled by the rear screed 24. In addition, when the vehicle body 12 is self-propelled, the pavement material is not supplied to the second hopper 16. As described above, the capacity of the second hopper 16 is larger than that of the first hopper 15, so that the paving material is supplied to the first hopper 15 and the paving material of the second hopper 16 is exhausted until the paving material disappears. It is possible to continue working.
このように、車体１２を走行させて舗装材を敷き均すときは、チャージングフィーダ１８を低速運転で駆動にするので、１つのエンジン１３の比較的小さいエンジン出力（定格出力132kw程度）であっても、第１ホッパ１５に舗装材を供給しながら各コンベヤなどから成る舗装装置ならびに走行装置を定格運転させて２種類の舗装材を同時に敷き均すことができる。 Thus, when the vehicle body 12 is run and the pavement material is spread, the charging feeder 18 is driven at a low speed operation, so that the engine output of one engine 13 is relatively small (rated output of about 132 kw). However, the two types of pavement materials can be spread and leveled simultaneously by supplying the first hopper 15 with the pavement material and operating the pavement device and the traveling device including each conveyor at a rated operation.
図２〜図３は、マルチペーバ１０にて２種類の舗装材を敷き均す状況の説明図である。図２に示すように、例えば、下地となる舗装材２７を敷き均した施工面上に、仕上げとなる舗装材２８を重ねて敷き均す場合は、先ず、走行モータ１４を駆動せずにマルチペーバ１０を停止した状態で、チャージングフィーダ１８のみを高速運転でフル稼働して、予め第２ホッパ１６に仕上げの舗装材２８を収容しておく。 2 to 3 are explanatory views of a situation where two types of paving materials are spread and leveled by the multi-paver 10. As shown in FIG. 2, for example, in the case where the finishing pavement 28 is overlapped and leveled on the construction surface in which the pavement 27 as the base is spread, first, the multi-paver is not driven without driving the traveling motor 14. In a state where 10 is stopped, only the charging feeder 18 is fully operated at a high speed operation, and the finished pavement material 28 is accommodated in the second hopper 16 in advance.
次に、チャージングフィーダ１８を低速運転で駆動して、第１ホッパ１５へ下地の舗装材２７を供給しつつ、走行モータ１４を定格運転にて駆動してマルチペーバ１０を自走させるとともに、各コンベヤや前後のスクリュースプレッダ２１，２４及びスクリード２２，２５から成る舗装装置を定格運転にて駆動する。 Next, the charging feeder 18 is driven at a low speed to supply the ground pavement material 27 to the first hopper 15, while the traveling motor 14 is driven at the rated operation to make the multi-paver 10 self-run. A pavement device including a conveyor, front and rear screw spreaders 21 and 24, and screeds 22 and 25 is driven at a rated operation.
そして、機械を自走させながら、前側スクリュースプレッダ２１で拡散した下地の舗装材２７を前側スクリード２２で敷き均し、機体の前進にともない、前記敷き均した舗装材２７の上面に、後側スクリュースプレッダ２４で拡散した仕上げの舗装材２８を後側スクリード２５で敷き均すことにより、マルチペーバ１０が自走しながら、２種類の舗装材を上下２層に敷き均すことができる。 Then, the base pavement material 27 diffused by the front screw spreader 21 is spread by the front screed 22 while the machine is self-propelled, and the rear screw is placed on the upper surface of the spread pavement material 27 as the aircraft advances. By laying and leveling the finished pavement material 28 diffused by the spreader 24 with the rear screed 25, the two types of pavement material can be laid on the upper and lower two layers while the multi-paver 10 is self-propelled.
図３に示すように、一般車両３０の車輪３１が通過する轍周辺の帯域３３を、他の部分の帯域３２および３４と異なった舗装材で舗装する場合は、前述の第２ホッパ１６に耐久性の高い舗装材を供給しておき、第１ホッパ１５には通常の舗装材を供給する。 As shown in FIG. 3, when the band 33 around the eaves through which the wheels 31 of the general vehicle 30 pass is paved with a paving material different from the bands 32 and 34 of other parts, the second hopper 16 is durable. A highly pavement material is supplied, and a normal pavement material is supplied to the first hopper 15.
それぞれの舗装材の供給手順は図２の場合と同様に行うが、その前に前側スクリード２２は取り外し、後述する位置に底板（ここでは図示せず）を配設する。前側スクリュースプレッダ２１（ここでは図示せず）の左右の轍周辺部分の下部に底板を配設し、この底板により第１ホッパ１５の通常の舗装材が轍周辺の帯域３３へ落下するのを阻止して、前側スクリュースプレッダ２１で路面に広げながら、中央部分の帯域３２および左右両端部分の帯域３４に落下させる。 Each pavement is supplied in the same manner as in FIG. 2, but before that, the front screed 22 is removed and a bottom plate (not shown here) is disposed at a position to be described later. A bottom plate is disposed below the left and right side of the front side of the front screw spreader 21 (not shown here), and this bottom plate prevents the normal pavement material of the first hopper 15 from dropping into the zone 33 around the side of the side. Then, while spreading on the road surface with the front screw spreader 21, it is dropped into the band 32 at the center part and the bands 34 at both left and right end parts.
また、後側スクリュースプレッダ２４の下に配設された底板（ここでは図示せず）により、第２ホッパ１６の耐久性の高い舗装材が中央部分の帯域３２および左右両端部分の帯域３４へ落下するのを阻止して、轍周辺の帯域３３のみに落下させ、後側スクリュースプレッダ２４で路面に広げる。上記複数の帯域は後側スクリード２５で敷き均されて、車輪３１が通過する轍周辺の帯域３３と、車輪３１が通過しない轍以外の帯域３２および３４とする。 Further, due to a bottom plate (not shown here) disposed below the rear screw spreader 24, the highly durable pavement material of the second hopper 16 falls into the band 32 at the central portion and the bands 34 at both left and right end portions. In this case, it is dropped only in the zone 33 around the eaves and spread on the road surface by the rear screw spreader 24. The plurality of bands are spread by the rear screed 25 and are defined as a band 33 around the kite through which the wheel 31 passes and bands 32 and 34 other than the kite through which the wheel 31 does not pass.
このように、第１ホッパ１５に収容した通常の舗装材を、前側スクリュースプレッダ２１にて轍以外の帯域３２および３４へ広げ、第２ホッパ１６に収容した耐久性の高い舗装材を、後側スクリュースプレッダ２４にて轍周辺の帯域３３へ広げ後側スクリード２５で敷き均すことにより、１回の舗装作業で２種類の舗装材を異なる複数の帯域へ敷き均すことができる。 In this way, the normal pavement material accommodated in the first hopper 15 is spread to the bands 32 and 34 other than the ridges by the front screw spreader 21, and the highly durable pavement material accommodated in the second hopper 16 is By spreading to the zone 33 around the ridge with the screw spreader 24 and spreading it with the rear screed 25, it is possible to spread two types of pavement materials into different zones in one paving operation.
かくして、従来と同程度の舗装能力を保持しつつ、エンジン出力が上記舗装装置と自走用走行装置の各油圧アクチュエータの全てが同時に定格運転されるのに必要な動力の略２分の１の動力を供給する小さいエンジン出力132〜140kw程度のエンジンを１基だけ搭載し、油圧ポンプも小さくしたので、舗装機械の重量が22〜23トン以下に軽量化される。したがって、舗装機械を積載するトレーラもやや小型のもので搬送可能となり、舗装機械を積載したトレーラの総重量が45トン以下となる。 Thus, while maintaining the same level of paving capability as before, the engine output is approximately one half of the power required for all the hydraulic actuators of the paving device and the self-propelled traveling device to be rated at the same time. Since only one engine with a small engine output of 132-140kw for supplying power is installed and the hydraulic pump is also small, the weight of the paving machine is reduced to 22-23 tons or less. Therefore, the trailer on which the paving machine is loaded can be transported with a slightly smaller size, and the total weight of the trailer loaded with the paving machine is 45 tons or less.
このため、総重量が４５トンを超える従来の舗装機械に比べて、特殊車両通行許可の申請が簡単になり、許可の取得までの時間も短縮される。また、昼間の通行および高速道路の通行が可能となるので、搬送が容易となる。 This makes it easier to apply for permission to pass special vehicles than conventional paving machines with a total weight exceeding 45 tons, and shortens the time required to obtain permission. Further, since daytime traffic and highway traffic are possible, transportation is facilitated.
なお、本発明は、本発明の精神を逸脱しない限り種々の改変を為すことができ、そして、本発明が該改変されたものに及ぶことは当然である。 It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.
１０ マルチペーバ（舗装機械）
１１ クローラ（走行装置）
１２ 車体
１３ エンジン
１４ 走行モータ（走行装置）
１５ 第１ホッパ
１６ 第２ホッパ
１７ 受入ホッパ
１８ チャージングフィーダ
１８ａ 排出部
１８ｂ 排出口
１９ 枢着ピン
２１ 前側スクリュースプレッダ
２２ 前側スクリード
２３ スクリューコンベヤ
２４ 後側スクリュースプレッダ
２５ 後側スクリード
２７ 下地の舗装材
２８ 仕上げの舗装材
３０ 一般車両
３１ 車輪
３２ 中央部分の帯域
３３ 轍周辺の帯域
３４ 左右両端部分の帯域
10 Multi-Paver (Paving machine)
11 Crawler (traveling device)
12 Car body 13 Engine 14 Traveling motor (traveling device)
DESCRIPTION OF SYMBOLS 15 1st hopper 16 2nd hopper 17 Receiving hopper 18 Charging feeder 18a Discharge part 18b Discharge port 19 Pivoting pin 21 Front screw spreader 22 Front screed 23 Screw conveyor 24 Rear screw spreader 25 Rear screed 27 Base pavement material 28 Finishing paving material 30 General vehicle 31 Wheel 32 Band in the center part 33 Band in the vicinity of the ridge 34 Band in the left and right end parts
Claims (2)
上記エンジンは、上記舗装装置と自走用走行装置の各油圧アクチュエータの全てが同時に定格運転されるのに必要な動力の略２分の１の動力を供給する小さいエンジン出力とするとともに、当該小さいエンジン出力に対応するように、舗装材を上記第２ホッパに積み込む場合は、上記自走式舗装機械を停車させ、上記チャージングフィーダのみが高速運転されるのに必要な動力を供給可能にする、一方、舗装作業を行う場合は、上記自走式舗装機械が低速走行され、且つ、上記舗装材を第１ホッパに積み込むチャージングフィーダが低速運転され、且つ、その他の上記舗装装置が定格運転されるのに必要な動力を供給可能にするエンジンを搭載したことを特徴とする自走式舗装機械。 A charging feeder for loading the pavement material put into the receiving hopper into the first hopper or the second hopper, each conveyor for conveying the pavement material of the first hopper or the second hopper to the construction surface behind the machine body, and the first hopper The front screw spreader that diffuses the pavement material on the construction surface, the rear screw spreader that diffuses the pavement material of the second hopper on the construction surface, and the pavement diffused by the front screw spreader and the rear screw spreader A self-propelled paving machine provided with a pavement device composed of a front screed and / or a rear screed for spreading material, and via a hydraulic pump to each hydraulic actuator of the pavement device and the self-propelled travel device In a self-propelled paving machine equipped with an engine that supplies power,
The engine has a small engine output that supplies approximately half of the power required for the rated operation of all the hydraulic actuators of the paving device and the self-propelled traveling device at the same time. When loading paving material into the second hopper so as to correspond to engine output, the self-propelled paving machine is stopped and only the charging feeder can supply power necessary for high speed operation. On the other hand, when pavement work is performed, the self-propelled pavement machine is driven at a low speed, the charging feeder for loading the pavement material into the first hopper is operated at a low speed, and the other pavement apparatus is operated at a rated speed. A self-propelled pavement machine equipped with an engine that can supply the power necessary to be used.
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| JP2011137291A (en) * | 2009-12-25 | 2011-07-14 | Sumitomo (Shi) Construction Machinery Co Ltd | Feeder device of paving machine |
| CN110468659A (en) * | 2019-07-30 | 2019-11-19 | 天津工程机械研究院有限公司 | A kind of paver mechanical hopper panel turnover device and paver |
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| JP3457556B2 (en) * | 1998-12-28 | 2003-10-20 | 住友建機製造株式会社 | Matting machine |
| JP3471597B2 (en) * | 1998-02-27 | 2003-12-02 | 大林道路株式会社 | Paving material loading device and leveling machine |
| JP2004116448A (en) * | 2002-09-27 | 2004-04-15 | Shin Caterpillar Mitsubishi Ltd | Engine control device for asphalt finisher |
| JP2006307486A (en) * | 2005-04-27 | 2006-11-09 | Shin Caterpillar Mitsubishi Ltd | Asphalt finisher |
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