EP0272270B1 - Vorrichtung zum bearbeiten von strassendecken - Google Patents

Vorrichtung zum bearbeiten von strassendecken Download PDF

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Publication number
EP0272270B1
EP0272270B1 EP19860906362 EP86906362A EP0272270B1 EP 0272270 B1 EP0272270 B1 EP 0272270B1 EP 19860906362 EP19860906362 EP 19860906362 EP 86906362 A EP86906362 A EP 86906362A EP 0272270 B1 EP0272270 B1 EP 0272270B1
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EP
European Patent Office
Prior art keywords
machine
sub
frame
wheels
treatment head
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.)
Expired - Lifetime
Application number
EP19860906362
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English (en)
French (fr)
Other versions
EP0272270A1 (de
Inventor
Anthony Greatwood Farm Lousada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RAPITEX (HIGHWAYS) Ltd
Original Assignee
RAPITEX (HIGHWAYS) Ltd
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Publication date
Application filed by RAPITEX (HIGHWAYS) Ltd filed Critical RAPITEX (HIGHWAYS) Ltd
Priority to AT86906362T priority Critical patent/ATE63768T1/de
Publication of EP0272270A1 publication Critical patent/EP0272270A1/de
Application granted granted Critical
Publication of EP0272270B1 publication Critical patent/EP0272270B1/de
Anticipated expiration legal-status Critical
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices 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 roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices 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 roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums

Definitions

  • This invention relates to a machine for treating a road surface or the like, and in particular but not exclusively, to a machine for forming lateral grooves in a road surface.
  • F-R-A-2,516,109 describes a machine for treating a road surface comprising a wheeled main frame for movement in a first direction, a wheeled sub-frame carrying a treatment head mounted on the main frame for transverse movement thereon and lifting means for raising and lowering the sub-frame for moving the treatment head into and out of engagement with the road surface.
  • the invention consists in a machine for treating a road surface or the like including a main frame or chassis, a treatment head mounted on the frame, first means for moving the frame in a first direction with the treatment head lifted from the surface and means for engaging the treatment head with the surface characterised in that the machine further comprises second means for moving the frame in a second, generally transverse, direction with the treatment head acting on the road surface and with the first means lifted thereform.
  • the main frame may be wheeled for movement in a first direction
  • the machine may further comprise a wheeled sub-frame mounted on the main frame for movement in a second direction, lifting means for raising and lowering one of the sets of wheels such that the machine may be moved in the first or second direction as selected and a surface treatment head mounted on the sub-frame.
  • the lifting means raise and lower the sub-frame wheels and they may simultaneously raise and lower the treatment head such that it contacts the surface only when the sub-frame wheels contact the surface.
  • the means for raising and lowering the treatment head may comprise a member extending between the pair of sub-frame wheels for engaging the heads or an extension thereof such that as the sub-frame wheels are lifted so are the treatment heads.
  • Each treatment head may be a grooving head and may include spray means for spraying water onto the surface of the road being treated.
  • each side by-side sub-frame carrying a set of wheels and a set of treatment heads, the treatment heads on one sub-frame being aligned with those on the other sub-frame in the second direction.
  • the machine may further comprise adjustment means for altering the position of the sub-frames along the second direction with respect to the main frame and in particular the adjustment means may be arranged to alter the separation of the two sub-frames.
  • the machine may comprise control-means for operating the machine on the following cycle:
  • the movements in the first direction are alternatively a first distance and a second distance, the first distance being equal to the separation of the treatment heads on the sub-frame and the second distance being equal to the total span of the heads taken in the first direction.
  • the main frame wheels may be hydraulically driven and the machine may further comprise an automatically operated dump valve for returning the hydraulic fluid to a tank when the required distance has been travelled.
  • the main wheels may also be provided with fail-safe brakes which engage when the hydraulic fluid is dumped.
  • FIG. 1 to 3 A machine for forming lateral grooves in a road surface is illustrated in Figures 1 to 3.
  • the machine which is generally indicated at 10, essentially comprises a wheeled main frame 11 on which are mounted two lateral wheeled sub-frames 12 which carry grooving treatment heads 13.
  • the wheels 14 of the sub-frames 12 are vertically adjustable so that they can be engaged or disengaged from the road surface 15 such that in their disengaged position the main frame wheels 16 lie on the road surface, whilst in the lowered position of the sub-frame wheels 14 the main frame wheels 16 are raised from the road surface 15 as shown in Figure 2.
  • the machine 10 is capable of being driven in a first direction, indicated by the arrow 17 on the main frame wheels 16 and driven in a second direction, indicated by the arrow 18, on the sub-frame wheels 14.
  • the treatment heads 13 engage the road surface 15 and groove it.
  • the machine 10 could start off with its one set of grooving heads 13 adjacent the white line 19 on a road surface and be driven over to the verge 20.
  • the machine 10 is then lowered onto its main frame wheels 16 and advanced by the distance equal to the separation of the grooving heads 13 in the first direction.
  • the machine 10 is then returned to its sub-frame wheels 14 and driven back to the white line 19 grooving into the gaps 21 in the pattern.
  • the machine is then advanced, on the main frame wheels 16, by the full distance of the span 22 of the grooving heads and another sequence is initiated.
  • the main frame 11 is a rectangular box-section frame having lateral rods 23 extending adjacent either end between its side members 24.
  • the sub-frames also comprise a generally rectangular box-section frame and are mounted onto the main frame by means of respective blocks 25 mounted on each of the lateral rods 23, the blocks 25 being engaged by upstanding arms 26 on the sub-frame 12.
  • the blocks are a tight fit on the lateral rods 23 and generally allow no movement of the sub-frames, but the separation of the sub-frames 12 can be altered by means of a threaded rod 27 which engages in oppositely threaded holes in the blocks 25.
  • the rod 27 is turned by means of a sprocket 28 and a chain drive 28a which is in turn operated by a hand wheel 29.
  • the sub-frame 12 defines five grooving head mountings 30 at spaced positions along its length.
  • a grooving head 13 is pivotally mounted to each mounting and includes a grooving wheel 31, and a height adjustment wheel 32.
  • the grooving wheel 31 is driven from a drive shaft 33 (see Figure 3) by means of a drive belt 34 and pulleys 35 and 35a.
  • the drive shaft 33 includes flexible couplings 36 between each mounting 30 and the shaft 33 extends along the pivot axis of the grooving heads 13.
  • Each body 37 of the grooving heads 13 carries an upside down hook 38.
  • the sub-frame wheels 14 are mounted on pivot arms 39 which can be raised and lowered by means of hydraulic rams 40.
  • the wheels 14 on one sub-frame are driven and those on the other are not.
  • the wheels are interconnected and fixed to a shaft 41 which passes along the length of the sub-frame 12 beneath the hooks 38 such that when the wheels 14 are raised by the hydraulic rams 40 the grooving heads 13 are also raised.
  • the leading main frame wheels 16 are mounted at spaced positions, whilst the trailing pair are mounted on a pivotable bogie steerable by means of a tiller 42.
  • the main frame 11 has a deck 43 on which is mounted an internal combustion engine 44 which drives hydraulic pumps located in the housing 46.
  • FIG 4 shows, schematically, the details of the hydraulic circuit.
  • the circuit includes five motors: the first two, 47 and 48 drive the main shaft 49 of the leading main frame wheels 26; the next two 50 and 51 drive either end of the drive shaft wheels and the final, lifting motor, drives the common shaft 41 of the driven pair of sub-frame wheels.
  • the power for motors 47, 48, 50 and 51 is provided by pump 53 which pressurises a line 54 supplied to a multiple valve 55 through a filter 56.
  • the valve is arranged so that motors 50 and 51 are driven at precisely the same speed, but motors 47 and 48 can be driven at different speeds to assist steering.
  • a gear pump 57 pressurises a line 58 which is supplied to thee sub-frame wheel motor 52 and to the hydraulic rams 40. The supply of this fluid is controlled by a two-position valve 59. Each of the pumps 53 and 57 is driven by the engine 44.
  • the valves 55 and 59 are controlled by an electrical control 62. This is also fed by a tachometer 60 which detects the forward movement of the machine 10 in the first direction 17. By making the separation between the grooving heads 13 the same width as the grooving heads, the span is a multiple of the separation distance. Thus if the tachometer is arranged to produce an output every separation distance, say 200 millimetres, then the control circuit counts the first of these and brakes the machine by using the dump valve 63 to dump the fluid from the motors 47 and 48 to tank 64 as described above. The lateral grooving movement of the machine then takes place and after that the machine 10 is advanced until another nine outputs from the tachometer have been recorded. The machine is then stopped again and the cycle is repeated.
  • the above machine is virtually fully automatic in operation and only requires a single operator to steer the forward movement in the first direction 17. It is therefore very cheap on manpower and because of the large number of heads operates relatively quickly.
  • the machine can be constructed in many different ways provided that it is capable of controlled forward movement in the first direction and intermediate lateral grooving movement.
  • the grooving wheels 31 on the sub-frame 12 rotate in the opposite direction to those on the other sub-frame. This arrangement counters a tendency of the grooving wheels to run away and removes the necessity to provide heavy braking capabilities.
  • Spray means are provided to spray water onto the road surface 15 when the heads 31 are operating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)

Claims (17)

1. Maschine (10) zur Behandlung der Oberfläche einer Straße oder dergleichen, die aus einem Hauptrahmen oder Chassis (11), einem an dem Rahmen befestigten Arbeitskopf (13) zur Behandlung der Oberfläche, ersten Einrichtungen (16) zum Bewegen des Rahmens in einer ersten Richtung (17) während der Arbeitskopf von der Oberfläche abgehoben ist und Einrichtungen (40) besteht, mit denen der Arbeitskopf in die Stellung gebracht wird, in der er die Oberfläche bearbeitet, dadurch gekennzeichnet, daß die Maschine zweite Einrichtungen (14, 41) zum Bewegen des Rahmens (11) in einer zweiten, im allgemeinen quer verlaufenden Richtung (18) enthält, wenn der Arbeitskopf (13) sich in der Arbeitsstellung befindet und die ersten Einrichtungen (16) von der Oberfläche abgehoben sind.
2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß der Hauptrahmen (11) auf Rädern in der ersten Richtung (17) verschiebbar ist und einen auf Rädern verschiebbaren Hilfsrahmen (12) enthält, der an dem Hauptrahmen (11) befestigt und in der zweiten Richtung (18) verschiebbar ist, wobei der Hilfsrahmen den Arbeitskopf (13) und Einrichtungen (39, 40) zum Anheben und Absenken einer der Radsätze enthält, so daß die Maschine wahlweise in der ersten Richtung (17) oder in der zweiten Richtung (18) verschiebbar ist.
3. Maschine nach Anspruch 2, dadurch gekennzeichnet, daß mit den Einrichtungen (39, 40) die Räder (14) des Hilfsrahmens betätigbar sind.
4. Maschine nach Anspruch 3, dadurch gekennzeichnet, daß mit den Einrichtungen (39, 40) gleichzeitig der Arbeitskopf (13) und die Räder (14) des Hilfsrahmens anhebbar und absenkbar sind, so daß der Arbeitskopf (13) die Oberfläche nur dann berührt, wenn die Räder (14) des Hilfsrahmens die Oberfläche berühren.
5. Maschine nach einem der Ansprüche 2 und 4, dadurch gekennzeichnet, daß mehrere Arbeitsköpfe (13) nebeneinander auf dem Hilfsrahmen (12) befestigt sind.
6. Maschine nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß der Arbeitskopf (13) schwenkbar an dem Hilfsrahmen (12) befestigt ist.
7. Maschine nach Anspruch 6, dadurch gekennzeichnet, daß die Einrichtungen zum Anheben und Absenken des Arbeitskopfes ein Werkstück (41) enthalten, das sich zwischen den Rädern (14) des Hilfsrahmens erstreckt und den Kopf (13) oder eine Verlängerung (38) des Kopfes betätigt, so daß der Arbeitskopf (13) angehoben wird, wenn die Räder (14) des Hilfsrahmens angehoben werden.
8. Maschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Arbeitskopf (13) aus einem Kopf zum Einbringen von Rillen in die Straßenoberfläche besteht.
9. Maschine nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, daß sie Sprüheinrichtungen (61) zum Aufsprühen von Wasser auf die zu behandelnde Straßenoberfläche enthält.
10. Maschine nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, daß sie zweinebeneinander angeordnete Hilfsrahmen (12) enthält, an denen ein Satz von Rädern (14) und ein Satz von Arbeitsköpfen (13) befestigt ist, wobei die Arbeitsköpfe (13) eines Hilfsrahmens (12), zu denen, die an dem anderen Hilfsrahmen (12) befestigt sind, in der zweiten Richtung (18) ausgerichtet sind.
11. Maschine nach Anspruch 10, dadurch gekennzeichnet, daß sie Verstelleinrichtungen (27, 28, 29) enthält, mit denen die Stellung der Hilfsrahmen (12) längs der zweiten Richtung (18) in bezug auf den Hauptrahmen (11) veränderbar ist.
12. Maschine nach Anspruch 11, dadurch gekennzeichnet, daß die Verstelleinrichtungen (27, 28, 29) so ausgebildet sind, daß der Abstand zwischen den beiden Hilfsrahmen (12) veränderbar ist.
13. Maschine nach einem der Ansprüche 2 bis 12, dadurch gekennzeichnet, daß sie Steuereinrichtungen (62) enthält, die den folgenden Arbeitszyklus der Maschine ermöglichen:
I) Vorwärtsbewegung der Maschine (10) längs der ersten Richtung (17) auf den Rädern (16) des Hauptrahmens (11),
II) Aufsetzen der Räder (14) des Hilfsrahmens auf die Oberfläche der Straße und Abheben der Räder (16) des Hauptrahmens von der Straßenoberfläche,
III) Antreiben der Maschine (10) und damit des Arbeitskopfes (13) in der zweiten Richtung (18),
IV) Anheben der Räder (14) des Hilfsrahmens und
V) Absenken der Räder (16) des hauptrahmens zum Vortrieb der Maschine in der ersten Richtung (17).
14. Maschine nach Anspruch (13), dadurch gekennzeichnet, daß ihre Verschiebung in der ersten Richtung abwechselnd über eine erste und eine zweite Strecke erfolgt, wobei die erste Strecke dem Abstand (21) entspricht, den die Arbeitsköpfe auf dem Hilfsrahmen voneinander haben und die zweite Strecke gleich der gesamten Länge (22) der Arbeitsköpfe in der ersten Richtung ist.
15. Maschine nach einem der Ansprüche 2 bis 14, dadurch gekennzeichnet, daß die Räder (14) des Hauptrahmens hydraulisch angetrieben werden.
16. Maschine nach Anspruch 15, dadurch gekennzeichnet, daß sie ein automatisch betätigtes Entleerventil (63) enthält, mit dem die hydraulische Flüssigkeit in einen Behälter (64) zurückgeleitet wird, wenn die Maschine die gewünschte Strecke zurückgelegt hat.
17. Maschine nach Anspruch 16, dadurch gekennzeichnet, daß sie Sicherheitsbremsen enthält, mit denen die Räder (14) des Hauptrahmens gebremst werden, wenn die hydraulische Flüssigkeit abgezogen ist.
EP19860906362 1985-10-16 1986-10-13 Vorrichtung zum bearbeiten von strassendecken Expired - Lifetime EP0272270B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86906362T ATE63768T1 (de) 1985-10-16 1986-10-13 Vorrichtung zum bearbeiten von strassendecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8525428 1985-10-16
GB858525428A GB8525428D0 (en) 1985-10-16 1985-10-16 Machine for treating road surface

Publications (2)

Publication Number Publication Date
EP0272270A1 EP0272270A1 (de) 1988-06-29
EP0272270B1 true EP0272270B1 (de) 1991-05-22

Family

ID=10586708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860906362 Expired - Lifetime EP0272270B1 (de) 1985-10-16 1986-10-13 Vorrichtung zum bearbeiten von strassendecken

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EP (1) EP0272270B1 (de)
GB (1) GB8525428D0 (de)
WO (1) WO1987002398A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310074B1 (de) * 1987-10-02 1992-05-27 Franz Bröhl An ein fahrbares Tragwerk anbaubare Fräse
GB8826400D0 (en) * 1988-11-11 1988-12-14 Rapitex Systems Ltd Improvements in/relating to surface treatment machines
GB2265172B (en) * 1992-03-20 1995-07-26 Mini Agriculture & Fisheries Grooving machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318637A (en) * 1964-10-19 1967-05-09 Concut Inc Machine for transversely slotting a strip of concrete pavement at different angles
GB1456503A (en) * 1972-10-03 1976-11-24 Cement & Concrete Ass Vehicle-mounted hardened concrete grooving machine
CH575049A5 (de) * 1974-01-03 1976-04-30 Arx Paul Von
DE2844205A1 (de) * 1978-10-11 1980-04-24 Hanns Ing Grad Glahn Anrauhgeraet fuer bodenbelaege
FR2516109A1 (fr) * 1981-11-06 1983-05-13 Gailledrat Expl Machine pour le rainurage et le sciage de chaussees en beton

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Publication number Publication date
EP0272270A1 (de) 1988-06-29
GB8525428D0 (en) 1985-11-20
WO1987002398A1 (en) 1987-04-23

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