EP0571792A1 - Mobile hammermill for roadsurfaces - Google Patents

Mobile hammermill for roadsurfaces Download PDF

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Publication number
EP0571792A1
EP0571792A1 EP93107342A EP93107342A EP0571792A1 EP 0571792 A1 EP0571792 A1 EP 0571792A1 EP 93107342 A EP93107342 A EP 93107342A EP 93107342 A EP93107342 A EP 93107342A EP 0571792 A1 EP0571792 A1 EP 0571792A1
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EP
European Patent Office
Prior art keywords
mast
deflection roller
hammer
cable
hammer weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP93107342A
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German (de)
French (fr)
Inventor
Jürgen Goldberg
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Individual
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Individual
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Publication date
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Publication of EP0571792A1 publication Critical patent/EP0571792A1/en
Withdrawn legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/12Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
    • E01C23/122Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
    • E01C23/124Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus moved rectilinearly, e.g. road-breaker apparatus with reciprocating tools, with drop-hammers

Definitions

  • the invention relates to a mobile hammer crusher according to the preamble of claim 1.
  • Such hammer breakers are known in a wide variety of configurations.
  • the hammer weights are moved up on the mast so that they can then fall down to perform the desired destruction on the road surface. To achieve the corresponding destructive effect, a not too low head is required.
  • This drop height is determined by the mast height in the known hammer crushers. Since this must not be too small, the mast must be tiltable or pivotable so that its high height does not constitute a hindrance when driving over long distances.
  • the hammer weight is also relatively heavy, so that the hydraulic piston and cylinder device must perform an appropriate power to lift the weight. It has therefore already been proposed to run the rope over a pulley in order to provide a corresponding "translation".
  • a rope deflection pulley which is arranged there in a fixed manner and over which the rope starting from the hammer weight is guided, is located at the mast tip of the correspondingly tall mast.
  • the rope then runs over the pulley system with several loose rollers that are moved up and down by the piston and cylinder unit.
  • the rope guide pulley attached to the top of the mast forms the highest point, the height of which cannot be changed during operation.
  • the invention is based on the object of creating a mobile hammer crusher according to the preamble of claim 1, for which a sufficient head for the hammer weight is ensured during operation, but the mast is not so high that it is tilted, folded or pivoted for driving must become.
  • the mast is relatively short, that is to say of a low height.
  • the cable deflection roller which is arranged in a fixed position on the mast tip in the known hammer breakers, forms the loose roller of the pulley block, ie it can be moved up and down by the hydraulic piston and cylinder unit, that is to say also beyond the mast tip, so that the mast is shorter than the drop height of the hammer weight.
  • the device is characterized in that the cable deflection roller simultaneously forms the loose roller of the pulley block very compact and economical to manufacture.
  • the mast is so high that the rope deflection roller is in alignment with the mast tip, ie with the mast end, in the lower position of the hammer weight.
  • the hammer weight is moved as well, due to the pulley effect, by twice the distance that is determined by the piston and cylinder unit.
  • the rope deflection roller is higher than the mast tip, and the drop height of the weight is correspondingly greater.
  • the hammer weight can drop down to carry out the desired work.
  • the cable pulley moves down with it, half the distance that the hammer weight falls.
  • the cable pulley is again aligned with the mast tip, so that the overall height is low. In this position, the hammer crusher can then be moved over longer distances without an excessive mast height being an obstacle.
  • the hammer crusher is designed as protected in claim 2.
  • "Intermediate" between the mast and rope deflection roller is a carriage which can be moved up and down on rails or the like on the mast with the aid of the piston and cylinder unit.
  • the trolley is used to support the cable pulley and to attack the piston and cylinder unit. At the same time, it can be guided in a correspondingly stiff manner, taking into account the rough operation, in order to move the rope deflection roller beyond the mast tip and thus to raise the weight to the desired height.
  • only one rope pulley is present, which forms the rope deflection roller in the area of the mast tip, which at the same time forms the loose roller for forming the Pulley represents. This makes the device simple and compact.
  • the device can advantageously be designed as specified in claim 3.
  • the two rails, one rail for the hammer weight and one rail for the carriage, run parallel to each other on different levels.
  • the mobile hammer crusher shown in the drawing consists of a correspondingly constructed heavy vehicle 1 with wheels 2.
  • the actual hammer crusher is attached to the rear of the vehicle in this embodiment, and the rear wheels and the axle are correspondingly stable.
  • the actual hammer crusher attached to the vehicle 1 consists of a tower or mast 3, which is formed by cross members 16, a bracket 17, rails 6 and 15 and other stiffening elements.
  • the mast 3 is attached to the vehicle 1 in a suitable manner and is movable with it.
  • a hammer weight 4 can be moved up and down on the mast 3, heavy-duty rollers 5, which are mounted in the hammer weight 4, being guided in rails 6 of the mast.
  • a rope 7 engages the hammer weight 4, which is guided over a rope deflection roller 8 and extends to one of the crossbeams 16 (see FIG. 1) to which it is attached.
  • the cable pulley 8 is attached to a carriage 12 and rotatably mounted.
  • the carriage 12 is equipped with rollers 13 which are guided in rails 15.
  • the carriage 12 can be moved up and down with the cable deflection roller 8 in these rails 15.
  • the rails 15 run parallel to the rails 6 but in a different plane and at a smaller distance, as can be seen clearly when looking at FIG. 3.
  • the piston rod of a hydraulic piston and cylinder unit 14 acts on the carriage 12.
  • This hydraulic piston and cylinder unit 14 serves for the up and down movement of the carriage and thus the rope deflection roller 8 and, due to the rope guidance, finally also the hammer weight 4.
  • FIG. 6 shows a detail of the mounting of the heavy-duty rollers 5 for the hammer weight 4.
  • the shaft 21 of the heavy duty roller 5 is mounted in a bushing 25, which in turn is arranged in a rubber bushing 20.
  • a bushing 25 In the shaft 21 there is an elongated hole 21 through which a fastening pin 24 passes, which is fastened in the bush 25.
  • a spring 22 presses against the end face of the shaft 21 opposite the roller 5.
  • the roller 5 can be moved back and forth axially over the length of the elongated hole 23 and, due to the rubber bushing 20, can be tilted to a limited extent on all sides. In this way, movements of the hammer weight, in particular caused by an uneven floor, can be absorbed and compensated for.
  • the hammer crusher of the illustrated embodiment operates in such a way that the hammer weight is moved upward by appropriately loading the piston and cylinder unit 14 with pressure oil.
  • the piston rod extends from the cylinder, it moves the carriage 12 upwards, which is guided with its rollers 13 in the rails 15 of the mast 3.
  • the cable pulley 8 moves accordingly upwards beyond the mast tip. Since the rope 7 is attached to the cross member 16 at 10, the hammer weight 4 is pulled upward, specifically from the position shown in FIGS. 1 and 2 to the position shown in FIGS. 4 and 5. It is easy to see and see that the hammer weight 4 is moved twice the distance that the piston of the piston and cylinder unit is extended. This is due to the pulley effect, since the cable pulley 8 forms the loose role of a pulley at the same time.
  • roller 8 There is only one roller, namely the rope deflection roller 8, for forming the pulley and for deflecting the rope.
  • the device is thus compact and simple. Accordingly, it can be used economically.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

The mobile hammermill serves for breaking up and crushing road surfaces and the like. Fastened on a vehicle (1) is a mast (3), on which a hammer weight (4) can be moved up and down with the aid of a cable. The cable is guided via a cable deflection roller (8). The cable deflection roller (8) is moved up and down by a hydraulic piston and cylinder unit (14), preferably with interposition of a carriage (12). One end of the cable (7) is fastened on the hammer weight (4) and then guided via the cable deflection roller (8) to a "stationary" point. In the position, in which the hammer weight (4) is situated at the bottom, the cable deflection roller (8) aligns with the mast tip. By these means, the overall height of the vehicle in travelling operation is defined. When the hammer weight (4) has been moved into the highest position to carry out its working stroke, the cable deflection roller (8) projects beyond the mast tip so that a correspondingly great drop height is available for the hammer weight. The cable deflection roller forms at the same time the loose roller of a pulley block and thus ensures a "multiplication", that is to say the weight covers twice the distance on its movement upwards which is fixed by the extension of the piston rod of the hydraulic piston and cylinder unit (14). As a result, a compact and economically usable device is produced, the mast height of which is small in travelling operation, that is to say when the hammer weight is situated at the bottom. It is therefore not necessary to design the mast to be collapsible, pivotable or tiltable. <IMAGE>

Description

Die Erfindung betrifft einen fahrbaren Hammerbrecher nach dem Oberbegriff des Patentanspruches 1.The invention relates to a mobile hammer crusher according to the preamble of claim 1.

Derartige Hammerbrecher sind in den unterschiedlichsten Ausgestaltungen bekannt. Die Hammergewichte werden an dem Mast nach oben bewegt, um dann nach unten fallen zu können, um die gewünschte Zerstörung auf der Straßenoberfläche durchzuführen. Damit die entsprechende Zerstörungswirkung erzielt wird, ist eine nicht zu geringe Fallhöhe erforderlich. Diese Fallhöhe wird bei den bekannten Hammerbrechern durch die Masthöhe bestimmt. Da diese nicht zu gering sein darf, muß der Mast kippbar oder schwenkbar sein, damit er durch seine große Höhe keine Behinderung beim Fahren über längere Strecken darstellt. Das Hammergewicht ist darüberhinaus verhältnismäßig schwer, so daß die hydraulische Kolben- und Zylindereinrichtung eine entsprechende Leistung erbringen muß, um das Gewicht zu heben. Es ist daher schon vorgeschlagen worden, das Seil über einen Flaschenzug zu führen, um so für eine entsprechende "Übersetzung" zu sorgen. Bei den bekannten Hammerbrechern befindet sich an der Mastspitze des entsprechend hohen Mastes eine dort ortsfest angeordnete Seilumlenkrolle, über die das von dem Hammergewicht ausgehende Seil geführt ist. Das Seil läuft dann über den Flaschenzug mit mehreren losen Rollen, die durch die Kolben- und Zylindereinheit auf- und abbewegt werden. Die an der Mastspitze befestigte Seilumlenkrolle bildet den höchsten Punkt, der während des Betriebes unveränderbar in seiner Höhe festliegt.Such hammer breakers are known in a wide variety of configurations. The hammer weights are moved up on the mast so that they can then fall down to perform the desired destruction on the road surface. To achieve the corresponding destructive effect, a not too low head is required. This drop height is determined by the mast height in the known hammer crushers. Since this must not be too small, the mast must be tiltable or pivotable so that its high height does not constitute a hindrance when driving over long distances. The hammer weight is also relatively heavy, so that the hydraulic piston and cylinder device must perform an appropriate power to lift the weight. It has therefore already been proposed to run the rope over a pulley in order to provide a corresponding "translation". In the known hammer breakers, a rope deflection pulley, which is arranged there in a fixed manner and over which the rope starting from the hammer weight is guided, is located at the mast tip of the correspondingly tall mast. The rope then runs over the pulley system with several loose rollers that are moved up and down by the piston and cylinder unit. The rope guide pulley attached to the top of the mast forms the highest point, the height of which cannot be changed during operation.

Der Erfindung liegt nun die Aufgabe zugrunde, einen fahrbaren Hammerbrecher nach dem Oberbegriff des Patentanspruches 1 zu schaffen, für den im Betrieb eine ausreichende Fallhöhe für das Hammergewicht sichergestellt ist, dessen Mast aber nicht so hoch ist, daß er zum Fahrbetrieb gekippt, geklappt oder geschwenkt werden muß.The invention is based on the object of creating a mobile hammer crusher according to the preamble of claim 1, for which a sufficient head for the hammer weight is ensured during operation, but the mast is not so high that it is tilted, folded or pivoted for driving must become.

Diese Aufgabe wird durch das Kennzeichen des Anspruches 1 gelöst, wobei der Anspruch 2 auf eine besonders vorteilhafte Ausgestaltung gerichtet ist.This object is achieved by the characterizing part of claim 1, claim 2 being directed to a particularly advantageous embodiment.

Erfindungsgemäß ist der Mast verhältnismäßig kurz, d.h. mit geringer Höhe ausgebildet. Die Seilumlenkrolle, die bei den bekannten Hammerbrechern ortsfest an der Mastspitze angeordnet ist, bildet die lose Rolle des Flaschenzuges, d.h. sie ist durch die hydraulische Kolben- und Zylindereinheit auf- und abbewegbar, also auch über die Mastspitze hinaus, so daß der Mast kürzer ist als die Fallhöhe des Hammergewichtes. Dadurch, daß die Seilumlenkrolle gleichzeitig die lose Rolle des Flaschenzuges bildet, ist die Vorrichtung sehr kompakt aufgebaut und wirtschaftlich herzustellen. Bei der besonders vorteilhaften und sinnvollen Ausführungsform ist der Mast so hoch, daß die Seilumlenkrolle in der unteren Stellung des Hammergewichtes mit der Mastspitze, d.h. mit dem Mastende, fluchtet. Wenn die Seilumlenkrolle dann durch die Kolben- und Zylindereinheit nach oben bewegt wird, wird das Hammergewicht mitbewegt und zwar, bedingt durch den Flaschenzugeffekt, um die doppelte Wegstrecke, die durch die Kolben- und Zylindereinheit festgelegt ist. In der oberen Stellung des Hammergewichtes liegt die Seilumlenkrolle höher als die Mastspitze, und entsprechend größer ist die Fallhöhe des Gewichtes. Wenn die hydraulische Kolben- und Zylindereinheit druckentlastet wird, kann das Hammergewicht nach unten fallen, um die gewünschte Arbeit durchzuführen. Gleichzeitig bewegt sich die Seilumlenkrolle mit nach unten und zwar um die halbe Wegstrecke, die das Hammergewicht fällt. In der unteren Stellung fluchtet die Seilumlenkrolle wieder mit der Mastspitze, so daß die Gesamthöhe gering ist. In dieser Stellung kann der Hammerbrecher dann auch über größere Strecken verfahren werden, ohne daß eine zu große Masthöhe hinderlich wäre.According to the invention, the mast is relatively short, that is to say of a low height. The cable deflection roller, which is arranged in a fixed position on the mast tip in the known hammer breakers, forms the loose roller of the pulley block, ie it can be moved up and down by the hydraulic piston and cylinder unit, that is to say also beyond the mast tip, so that the mast is shorter than the drop height of the hammer weight. The device is characterized in that the cable deflection roller simultaneously forms the loose roller of the pulley block very compact and economical to manufacture. In the particularly advantageous and sensible embodiment, the mast is so high that the rope deflection roller is in alignment with the mast tip, ie with the mast end, in the lower position of the hammer weight. If the cable deflection roller is then moved upwards by the piston and cylinder unit, the hammer weight is moved as well, due to the pulley effect, by twice the distance that is determined by the piston and cylinder unit. In the upper position of the hammer weight, the rope deflection roller is higher than the mast tip, and the drop height of the weight is correspondingly greater. When the hydraulic piston and cylinder unit is relieved of pressure, the hammer weight can drop down to carry out the desired work. At the same time, the cable pulley moves down with it, half the distance that the hammer weight falls. In the lower position, the cable pulley is again aligned with the mast tip, so that the overall height is low. In this position, the hammer crusher can then be moved over longer distances without an excessive mast height being an obstacle.

In vorteilhafter Weise ist der Hammerbrecher so ausgebildet, wie in Anspruch 2 unter Schutz gestellt. "Zwischengeschaltet" zwischen Mast und Seilumlenkrolle ist ein Wagen, der an Schienen oder dergleichen an dem Mast mit Hilfe der Kolben- und Zylindereinheit auf- und abbewegbar ist. Der Wagen dient der Lagerung der Seilumlenkrolle und dem Angriff der Kolben- und Zylindereinheit. Gleichzeitig kann er entsprechend steif unter Berücksichtigung des rauhen Betriebes an dem Hast geführt werden, um die Seilumlenkrolle über die Mastspitze hinaus zu bewegen und so das Gewicht auf die gewünschte Höhe anzuheben. Bei dieser Ausführungsform ist nur eine Seilrolle vorhanden, die die Seilumlenkrolle im Bereich der Mastspitze bildet, die gleichzeitig die lose Rolle zur Ausbildung des Flaschenzuges darstellt. Hierdurch ist die Vorrichtung einfach und kompakt.Advantageously, the hammer crusher is designed as protected in claim 2. "Intermediate" between the mast and rope deflection roller is a carriage which can be moved up and down on rails or the like on the mast with the aid of the piston and cylinder unit. The trolley is used to support the cable pulley and to attack the piston and cylinder unit. At the same time, it can be guided in a correspondingly stiff manner, taking into account the rough operation, in order to move the rope deflection roller beyond the mast tip and thus to raise the weight to the desired height. In this embodiment, only one rope pulley is present, which forms the rope deflection roller in the area of the mast tip, which at the same time forms the loose roller for forming the Pulley represents. This makes the device simple and compact.

In vorteilhafter Weise kann die Vorrichtung so ausgestaltet sein, wie in Anspruch 3 angegeben. Die beiden Schienen, je eine Schiene für das Hammergewicht und eine Schiene für den Wagen, laufen in verschiedenen Ebenen aber parallel zueinander.The device can advantageously be designed as specified in claim 3. The two rails, one rail for the hammer weight and one rail for the carriage, run parallel to each other on different levels.

In den Ansprüchen 4 und 5 ist eine besonders zweckmäßige Lagerung für die Schwerlastrollen des Hammergewichtes unter Schutz gestellt.In claims 4 and 5, a particularly useful storage for the heavy duty rollers of the hammer weight is placed under protection.

Im folgenden wird die Erfindung unter Hinweis auf die Zeichnung anhand eines Ausführungsbeispieles näher erläutert.The invention is explained in more detail below with reference to the drawing using an exemplary embodiment.

Es zeigt:

Fig. 1
eine schematische Seitenansicht einer Ausführungsform eines fahrbaren Hammerbrechers nach der Erfindung;
Fig. 2
eine Ansicht des Hammerbrechers der Fig. 1 von hinten;
Fig. 3
eine Ansicht des Hammerbrechers nach Fig. 1 von unten;
Fig. 4
eine der Fig. 1 entsprechende Seitenansicht, jedoch mit hochgefahrenem Hammergewicht im Unterschied zu der Darstellung nach Fig. 1, bei der sich das Hammergewicht in der untersten Stellung befindet;
Fig. 5
eine Ansicht des fahrbaren Hammerbrechers der Fig. 4 von hinten; und
Fig. 6
einen Schnitt durch die Lagerung einer Rolle des Hammergewichtes im vergrößerten Maßstab.
It shows:
Fig. 1
is a schematic side view of an embodiment of a mobile hammer crusher according to the invention;
Fig. 2
a view of the hammer breaker of Figure 1 from behind.
Fig. 3
a view of the hammer breaker of Figure 1 from below.
Fig. 4
a side view corresponding to Figure 1, but with the hammer weight raised in contrast to the illustration of Figure 1, in which the hammer weight is in the lowest position.
Fig. 5
a view of the mobile hammer breaker of Figure 4 from behind. and
Fig. 6
a section through the storage of a roll of hammer weight on an enlarged scale.

Der in der Zeichnung dargestellte fahrbare Hammerbrecher besteht aus einem entsprechend konstruierten schweren Fahrzeug 1 mit Rädern 2. Der eigentliche Hammerbrecher ist bei dieser Ausführungsform hinten an dem Fahrzeug angebracht, und die hinteren Räder und die Achse sind entsprechend stabil ausgebildet.The mobile hammer crusher shown in the drawing consists of a correspondingly constructed heavy vehicle 1 with wheels 2. The actual hammer crusher is attached to the rear of the vehicle in this embodiment, and the rear wheels and the axle are correspondingly stable.

Der eigentliche, an dem Fahrzeug 1 angebrachte Hammerbrecher, besteht aus einem Turm oder Mast 3, der durch Traversen 16, einem Bügel 17, Schienen 6 und 15 sowie weitere Versteifungselemente gebildet ist. Der Mast 3 ist in geeigneter Weise an dem Fahrzeug 1 befestigt und mit diesem bewegbar.The actual hammer crusher attached to the vehicle 1 consists of a tower or mast 3, which is formed by cross members 16, a bracket 17, rails 6 and 15 and other stiffening elements. The mast 3 is attached to the vehicle 1 in a suitable manner and is movable with it.

Ein Hammergewicht 4 ist an dem Mast 3 auf- und abbewegbar, wobei Schwerlastrollen 5, die in dem Hammergewicht 4 gelagert sind, in Schienen 6 des Mastes geführt sind. Bei 9 greift an dem Hammergewicht 4 ein Seil 7 an, das über eine Seilumlenkrolle 8 geführt ist, und bis zu einer der Traversen 16 (siehe Fig. 1) verläuft, an der es befestigt ist.A hammer weight 4 can be moved up and down on the mast 3, heavy-duty rollers 5, which are mounted in the hammer weight 4, being guided in rails 6 of the mast. At 9, a rope 7 engages the hammer weight 4, which is guided over a rope deflection roller 8 and extends to one of the crossbeams 16 (see FIG. 1) to which it is attached.

Die Seilumlenkrolle 8 ist an einem Wagen 12 angebracht und drehbar gelagert. Der Wagen 12 ist mit Rollen 13 ausgerüstet, die in Schienen 15 geführt sind. In diesen Schienen 15 ist der Wagen 12 mit der Seilumlenkrolle 8 auf- und abbewegbar. Die Schienen 15 verlaufen parallel zu den Schienen 6 aber in einer anderen Ebene und in geringerem Abstand, wie man beim Betrachten der Fig. 3 gut erkennen kann.The cable pulley 8 is attached to a carriage 12 and rotatably mounted. The carriage 12 is equipped with rollers 13 which are guided in rails 15. The carriage 12 can be moved up and down with the cable deflection roller 8 in these rails 15. The rails 15 run parallel to the rails 6 but in a different plane and at a smaller distance, as can be seen clearly when looking at FIG. 3.

An dem Wagen 12 greift die Kolbenstange einer hydraulischen Kolben- und Zylindereinheit 14 an. Diese hydraulische Kolben- und Zylindereinheit 14 dient der Auf- und Abbewegung des Wagens und damit der Seilumlenkrolle 8 und, bedingt durch die Seilführung, schließlich auch des Hammergewichtes 4.The piston rod of a hydraulic piston and cylinder unit 14 acts on the carriage 12. This hydraulic piston and cylinder unit 14 serves for the up and down movement of the carriage and thus the rope deflection roller 8 and, due to the rope guidance, finally also the hammer weight 4.

In Fig. 6 ist eine Einzelheit der Lagerung der Schwerlastrollen 5 für das Hammergewicht 4 dargestellt. Die Welle 21 der Schwerlastrolle 5 ist in einer Buchse 25 gelagert, die wiederum in einer Gummibuchse 20 angeordnet ist. In der Welle 21 befindet sich ein Langloch 21, durch das ein Befestigungsstift 24 hindurchgeht, der in der Buchse 25 befestigt ist. Am hinteren Ende drückt gegen die der Rolle 5 gegenüberliegende Stirnseite der Welle 21 eine Feder 22. Durch diese Lagerung ist die Rolle 5 achsial über die Länge des Langloches 23 hin- und herbewegbar und, bedingt durch die Gummibuchse 20, allseitig beschränkt kippbar. Hierdurch können Bewegungen des Hammergewichtes, insbesondere bedingt durch einen unebenen Boden, aufgefangen und ausgeglichen werden.6 shows a detail of the mounting of the heavy-duty rollers 5 for the hammer weight 4. The shaft 21 of the heavy duty roller 5 is mounted in a bushing 25, which in turn is arranged in a rubber bushing 20. In the shaft 21 there is an elongated hole 21 through which a fastening pin 24 passes, which is fastened in the bush 25. At the rear end, a spring 22 presses against the end face of the shaft 21 opposite the roller 5. As a result of this mounting, the roller 5 can be moved back and forth axially over the length of the elongated hole 23 and, due to the rubber bushing 20, can be tilted to a limited extent on all sides. In this way, movements of the hammer weight, in particular caused by an uneven floor, can be absorbed and compensated for.

Im Betrieb arbeitet der Hammerbrecher der dargestellten Ausführungsform derart, daß das Hammergewicht durch entsprechende Beaufschlagung der Kolben- und Zylindereinheit 14 mit Drucköl nach oben bewegt wird. Wenn die Kolbenstange aus dem Zylinder ausfährt, bewegt sie den Wagen 12 nach oben, der hierbei mit seinen Rollen 13 in den Schienen 15 des Mastes 3 geführt wird. Die Seilumlenkrolle 8 bewegt sich entsprechend mit nach oben über die Mastspitze hinaus. Da das Seil 7 bei 10 an der Traverse 16 befestigt ist, wird das Hammergewicht 4 nach oben gezogen und zwar aus der in Fig. 1 und 2 dargestellten Stellung in die in den Fig. 4 und 5 dargestellte Stellung. Es ist leicht erkennbar und einsehbar, daß das Hammergewicht 4 um die doppelte Wegstrecke bewegt wird, die der Kolben der Kolben- und Zylindereinheit ausgefahren wird. Dieses ist durch den Flaschenzugeffekt bedingt, da die Seilumlenkrolle 8 gleichzeitig die lose Rolle eines Flaschenzuges bildet.In operation, the hammer crusher of the illustrated embodiment operates in such a way that the hammer weight is moved upward by appropriately loading the piston and cylinder unit 14 with pressure oil. When the piston rod extends from the cylinder, it moves the carriage 12 upwards, which is guided with its rollers 13 in the rails 15 of the mast 3. The cable pulley 8 moves accordingly upwards beyond the mast tip. Since the rope 7 is attached to the cross member 16 at 10, the hammer weight 4 is pulled upward, specifically from the position shown in FIGS. 1 and 2 to the position shown in FIGS. 4 and 5. It is easy to see and see that the hammer weight 4 is moved twice the distance that the piston of the piston and cylinder unit is extended. This is due to the pulley effect, since the cable pulley 8 forms the loose role of a pulley at the same time.

In der in den Fig. 4 und 5 dargestellten Stellung liegt die Seilumlenkrolle 8 erheblich über der Mastspitze und das Hammergewicht 4 weist die nötige Fallhöhe auf. Wenn die Kolben- und Zylindereinheit dann druckentlastet wird, fällt das Hammergewicht nach unten, wobei die Seilumlenkrolle 8 und der Wagen 12 diese Bewegung entsprechend mitmachen. Dieses ist der eigentliche "Arbeitshub" des Hammergewichtes. In der unteren Stellung, die in den Fig. 1 und 2 dargestellt ist, wird die Fahrhöhe durch die Masthöhe, also praktisch durch die Höhe der obersten Traverse 16, bestimmt. Diese ist gering, obwohl das Hammergewicht 4, wie es beim Betrachten der Fig. 4 deutlich wird, entsprechend hoch angehoben werden kann. In dieser oberen Stellung liegt die Seilumlenkrolle erheblich oberhalb der Oberkante des Mastes, d.h. über der Mastspitze.In the position shown in FIGS. 4 and 5, the cable deflection roller 8 lies considerably above the mast tip and the hammer weight 4 has the necessary drop height. When the piston and cylinder unit is then relieved of pressure, the hammer weight falls down, the cable deflection roller 8 and the carriage 12 correspondingly taking part in this movement. This is the actual "working stroke" of the hammer weight. In the lower position, which is shown in FIGS. 1 and 2, the driving height is determined by the mast height, that is to say practically by the height of the top crossmember 16. This is low, although the hammer weight 4, as becomes clear when viewing FIG. 4, can be raised correspondingly high. In this upper position, the rope deflection roller lies considerably above the top edge of the mast, i.e. over the top of the mast.

Es ist zur Ausbildung des Flaschenzuges und zur Umlenkung des Seiles nur eine Rolle, nämlich die Seilumlenkrolle 8, vorhanden. Die Vorrichtung ist dadurch kompakt und einfach aufgebaut. Sie kann entsprechend wirtschaftlich eingesetzt werden.There is only one roller, namely the rope deflection roller 8, for forming the pulley and for deflecting the rope. The device is thus compact and simple. Accordingly, it can be used economically.

Claims (5)

Fahrbarer Hammerbrecher für Straßenoberflächen oder dergleichen, mit einem an dem Fahrzeug (1) befestigten Mast (3), an dem ein Hammergewicht (4) mit Hilfe eines Seils (7) auf- und abbewegbar ist, das über eine oben an dem Mast gelagerte Seilumlenkrolle (8) in Verbindung mit einem Flaschenzug läuft, der durch eine hydraulische Kolben- und Zylindereinheit (14) betätigbar ist, dadurch gekennzeichnet, daß die an dem Mast (3) gelagerte Seilumlenkrolle (8) die lose Rolle des Flaschenzuges ist, die durch die hydraulische Kolben- und Zylindereinheit (14) an dem Mast auf- und abbewegbar ist.Mobile hammer crusher for road surfaces or the like, with a mast (3) attached to the vehicle (1), on which a hammer weight (4) can be moved up and down with the aid of a rope (7), via a rope deflection roller mounted on the top of the mast (8) runs in conjunction with a block and tackle, which can be actuated by a hydraulic piston and cylinder unit (14), characterized in that the cable deflection roller (8) mounted on the mast (3) is the loose role of the block and tackle, which is caused by the hydraulic piston and cylinder unit (14) can be moved up and down on the mast. Hammerbrecher nach Anspruch 1, dadurch gekennzeichnet, daß die Seilumlenkrolle (8) an einem Wagen (12) gelagert ist, der an dem Mast (3) durch die hydraulische Kolben- und Zylindereinheit (14) auf- und abbewegbar und derart geführt und gestaltet ist, daß die Mastspitze in der tiefsten Stellung des Hammergewichtes (4) mit der Seilumlenkrolle (8) fluchtet.Hammer crusher according to claim 1, characterized in that the cable deflection roller (8) is mounted on a carriage (12) which can be moved up and down on the mast (3) by the hydraulic piston and cylinder unit (14) and is guided and designed in this way that the mast tip is aligned with the rope deflection roller (8) in the lowest position of the hammer weight (4). Hammerbrecher nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an dem Mast (3) zur Führung jedes Hammergewichtes (4) und des Wagens (12) eine Schiene (6,15) vorgesehen ist.Hammer crusher according to claim 1 or 2, characterized in that a rail (6, 15) is provided on the mast (3) for guiding each hammer weight (4) and the carriage (12). Hammerbrecher nach einem der vorstehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die das Hammergewicht führenden Rollen (5) durch Gummibuchsen (20) gelagert sind, relativ zu denen die Rollen (5) mit ihren Wellen (21) begrenzt in Achsrichtung der Wellen verschiebbar sind.Hammer crusher according to one of the preceding claims 1 to 3, characterized in that the rollers (5) guiding the hammer weight are supported by rubber bushes (20), relative to which the rollers (5) with their shafts (21) can be displaced in the axial direction of the shafts to a limited extent are. Hammerbrecher nach Anspruch 4, dadurch gekennzeichnet, daß zur Verschiebung jeder Welle (21) ein Langloch (23) vorgesehen ist, in das ein Führungsstift (24) eingreift, und daß auf die den Rollen (5) gegenüberliegende Stirnfläche der Welle (21) eine Feder (22) drückt.Hammer crusher according to claim 4, characterized in that for the displacement of each shaft (21) an elongated hole (23) is provided, into which a guide pin (24) engages, and that on the end face of the shaft (21) opposite the rollers (5) Presses spring (22).
EP93107342A 1992-05-26 1993-05-06 Mobile hammermill for roadsurfaces Withdrawn EP0571792A1 (en)

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Application Number Priority Date Filing Date Title
DE19924217348 DE4217348C1 (en) 1992-05-26 1992-05-26
DE4217348 1992-05-26

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Publication number Priority date Publication date Assignee Title
CN114855581B (en) * 2022-04-11 2023-08-08 山东省路桥集团有限公司 Old route reconstruction treatment equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805847A (en) * 1955-06-28 1957-09-10 Malloy Emmett James Accessory impact mechanism for tractors
AU450755B2 (en) * 1970-06-04 1974-07-03 George Harding Donald Power hammer
FR2271344A1 (en) * 1974-05-16 1975-12-12 Bouyer Jean Rig and hammer for driving posts - has endless belt driving vert. chain raising hammer to top of rail
US4852661A (en) * 1987-05-26 1989-08-01 Ellington David A Portable concrete hammer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365005A (en) * 1965-10-05 1968-01-23 Westinghouse Air Brake Co Mobile impacting machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805847A (en) * 1955-06-28 1957-09-10 Malloy Emmett James Accessory impact mechanism for tractors
AU450755B2 (en) * 1970-06-04 1974-07-03 George Harding Donald Power hammer
FR2271344A1 (en) * 1974-05-16 1975-12-12 Bouyer Jean Rig and hammer for driving posts - has endless belt driving vert. chain raising hammer to top of rail
US4852661A (en) * 1987-05-26 1989-08-01 Ellington David A Portable concrete hammer

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