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EP0985769A1 - Dispositif pour répandre des matériaux granulaires - Google Patents

Dispositif pour répandre des matériaux granulaires Download PDF

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Publication number
EP0985769A1
EP0985769A1 EP99117505A EP99117505A EP0985769A1 EP 0985769 A1 EP0985769 A1 EP 0985769A1 EP 99117505 A EP99117505 A EP 99117505A EP 99117505 A EP99117505 A EP 99117505A EP 0985769 A1 EP0985769 A1 EP 0985769A1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
switching
spreading
speed
transport vehicle
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Withdrawn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
EP99117505A
Other languages
German (de)
English (en)
Inventor
Rudolphes Johannes Wilhelmus Rosenkamp
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.)
Aebi Schmidt Deutschland GmbH
Original Assignee
Schmidt Holding GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schmidt Holding GmbH filed Critical Schmidt Holding GmbH
Publication of EP0985769A1 publication Critical patent/EP0985769A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
    • E01H10/007—Mobile apparatus specially adapted for preparing or applying liquid or semi-liquid thawing material or spreading granular material on wintry roads
    • 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
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
    • 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
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C2019/2055—Details not otherwise provided for
    • E01C2019/207—Feeding the distribution means
    • E01C2019/2075—Feeding the distribution means with longitudinal conveyor belt

Definitions

  • such a device is in shape of a spreader for spreading road salt on a smooth road known.
  • the known device is equipped with a hydraulic double pump connected to two hydraulic circuits in parallel are. In one of the circuits are the hydraulic motors from two spreading discs added. In the other cycle are together with the hydraulic motor for one Liquid pump to the spreading material before spreading with a liquid lowering the freezing point to be able to mix, the hydraulic motor of a conveyor belt added.
  • the use of two parallel circuits has the Advantage that when starting the pump only a relative small volume flow of hydraulic fluid needs to be delivered.
  • the spreader has it a low "start-up pressure".
  • the known device also knows a considerable disadvantage, and that the pumped volume of hydraulic Liquid per circuit at low circulation speeds of the transport vehicle is relatively small remains, which has the consequence that the spreading disc can only rotate at a low speed and the associated spread of the entire device therefore remains limited. Especially in countries where you due to the large volume of traffic with the spreader often in traffic jams, this leads to the problem that the spreader is too small at low speed Surface reached.
  • the invention aims at a device of to create that disadvantage eliminated.
  • a switching variable Start phase in which the hydraulic circuits are connected in parallel replaced by a subsequent phase in which the circuits are coupled, so in a low starting pressure in the start phase and in the Subsequent phase to achieve a larger spread.
  • the first switching value of the Switching size differs from zero, so it is not necessarily. In this respect, in particular if to a low starting pressure in the start phase Value is placed, for example, in the "subsequent phase" start at zero speed.
  • the invention are the means by which the first Switching value of the switching quantity the hydraulic units in Series are switched in the first circuit set up, the existing in the second circuit hydraulic fluid in the operation of the spreader is fed.
  • the switching variable the speed of the transport vehicle and comprise the means for measuring the Measuring the transport speed.
  • the switching values of the switching variable differ increasing speed of the transport vehicle from the switching values as the speed of the Transport vehicle. This prevents the Switching means in one with the first and / or second Switching value corresponding transport speed can show unstable behavior.
  • Fig. 1 shows schematically a device 1 for Spreading spreading material, e.g. Road salt, according to the invention.
  • the spreader 1 comprises a frame 2 which a reservoir 3 attached to the scatter material is.
  • To spread the spreading material is on Frame 2 attached to a spreader, by a rotatable spreading plate 4 is formed, the spreading material hurled away from the vehicle.
  • the spread of the spreader is at the speed of the spreader plate 4 adjustable.
  • Between the container 3 and the spreading disc 4 are means of transport in the form of a conveyor belt 5 for transporting the litter from Container provided for the plate.
  • a reservoir 25 for liquid is provided.
  • the storage container in question is a Liquid pump assigned.
  • the aforementioned conveyor belt, the aforementioned liquid pump and the aforementioned spreading plate are each powered by a separate hydraulic motor.
  • This Hydraulic motors 6, 11 and 7 are in one hydraulic system, which is shown in FIG. 2 is shown schematically.
  • hydraulic pumps 8 For driving the different Hydraulic motors are hydraulic pumps 8 provided, which is also in the diagram of FIG. 2nd are shown.
  • the spreader according to the invention is intended to be used with a transport vehicle 9 to be transported.
  • the Energy used to drive the hydraulic pumping medium 8 of the spreader 1 is necessary an impeller 10 supplied during the Transport of the spreader with the sprinkler Road surface is in contact.
  • the necessary energy directly from the transport vehicle be delivered, e.g. by means of the driven Wheel axle or indirectly by means of the wheels of a Trailer on which the spreader is built. In all situations mentioned is the drive of the speed depending on the transport vehicle.
  • a hydraulic double pump 8 is attached to the impeller 10. These are hydraulic ones known in the art Pump means with one suction connection and two Pressure connections. There is a at each pressure connection separate hydraulic circuit A or B connected. In circuit A are the hydraulic motor 6 of the conveyor belt 5 and the hydraulic motor 11 of the Liquid pump added. In the other cycle the spreader motor 7 is included. Both circuits are in the usual way to a reservoir 12 for the hydraulic fluid connected.
  • Both circuits are optionally hydraulic To connect switching means, preferably in the form of a hydraulic changeover valve 13, the line 14 connects to line 15 instead of line 16.
  • the hydraulic motors 6, 11 and 7 of various hydraulically driven devices are connected in series in circuit A.
  • the hydraulic fluid present in circuit B. is, the spreader motor 7 is fed directly.
  • the spreader motor 7 is consequently both hydraulic fluid from circuit A as well hydraulic fluid supplied from circuit B. Thanks to this increased intake the maximum increases Speed at which the spreading disc is driven can, considerably. In the rest of the Figure description is regularly on this condition referred to as the "series connected state" become.
  • Means are provided for controlling the switching means, e.g. in the form of a computer 17 with suitable Software that is set up to run at first Switching value of a switching variable to be selected, the hydraulic To couple circuits A and B.
  • a suitable one Switching size is the speed of the transport vehicle. With the help of suitable measuring equipment the transport speed in different ways be determined. In the preferred shown Embodiment is the transport speed based on the rotational speed of the impeller 10 certainly. In order to measure this, a pulse generator 18 is on attached to the impeller 10, which is assigned a pulse counter is the number of pulses delivered per Unit of time. From this is the orbital speed to calculate the impeller 10. As Alternatively, the transport speed e.g. based on the measurement of the flow velocity of the hydraulic fluid in at least one of the Cycles are determined.
  • Fig. 3 shows various switching points with the associated Switching values for the transport speed. It is explicitly an embodiment here where the switching values for illustration are given without restricting the invention thereto want.
  • the Speed (see bottom line in Fig. 3) at a first switching value of 3 km / h from parallel (p) Series (s) switched. With a second switching value of 25 km / h is then from series to parallel switched back. With decreasing speed (see top line in Fig. 3) is the second Switching value for switching from parallel (p ') to series (s') 20 km / h and is the first switching value for the Switch from series to parallel 2 km / h.
  • the switching values are adjustable so that they are the Operating situation can be adjusted.
  • the device according to the invention works as follows:
  • the hydraulic ones Circuits connected in parallel i.e. the line 14 is connected to line 16 by means of valve 13.
  • the required volume of hydraulic to be delivered Liquid per hydraulic pump before starting the different ones Hydromotors is now as low as possible, which makes starting easier. If the spreader has reached a speed of 3 km / h, this will detected with the aid of the pulse generator / pulse counter 18 and the computer 17 sends a signal to the switching valve 13, which then the hydraulic circuits connects by connecting line 14 to line 15 connects. As a result, a larger volume of hydraulic fluid to the spreader motor 7 is offered, which is subsequently with a higher Speed can rotate. The spreading width of the spreader increases with speed.
  • the invention is of course not based on that shown and described embodiment limited. It is e.g. conceivable instead of a spreading disc to use two or more spreading discs.
  • the associated spreader motors are preferably in Series connected and are also preferably in same hydraulic circuit. The spread pattern the spreading disc can then be adjusted that also the part of the road surface where the spreader does not drive, is sprinkled with sprinkling material.
  • two instead of a hydraulic double pump use hydraulic pumps, one for everyone Circulation. If necessary, you could even use a hydraulic pump, both by means of distributors Can drive cycles, content.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Road Paving Machines (AREA)
EP99117505A 1998-09-10 1999-09-04 Dispositif pour répandre des matériaux granulaires Withdrawn EP0985769A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1010056 1998-09-10
NL1010056A NL1010056C2 (nl) 1998-09-10 1998-09-10 Inrichting voor het uitstrooien van strooimateriaal.

Publications (1)

Publication Number Publication Date
EP0985769A1 true EP0985769A1 (fr) 2000-03-15

Family

ID=19767788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117505A Withdrawn EP0985769A1 (fr) 1998-09-10 1999-09-04 Dispositif pour répandre des matériaux granulaires

Country Status (2)

Country Link
EP (1) EP0985769A1 (fr)
NL (1) NL1010056C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2256740C2 (ru) * 2003-01-29 2005-07-20 ЗАО "Смоленский автоагрегатный завод АМО ЗИЛ" Машина дорожная с пескоразбрасывающим оборудованием, а также ее гидросистема
RU2263739C2 (ru) * 2003-01-29 2005-11-10 ЗАО "Смоленский автоагрегатный завод АМО ЗИЛ" Машина дорожная с распределителем противогололедных материалов, автоматическим управлением и контролем технологического процесса, с приводом транспортера от планетарного гидромотора, оснащенного преобразователем окружной скорости гидромотора в частоту
EP1607526A1 (fr) * 2004-06-09 2005-12-21 Grindsted Kommune, Park & Vej Système combiné d'entraínement et d'étalement d'asphalte

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2011894A1 (de) * 1970-03-13 1971-09-30 Hubert Weisser KG, 7715 Braun hngen Streugerat
DE2606899A1 (de) * 1976-02-20 1977-09-01 Bosch Gmbh Robert Regeleinrichtung fuer eine einrichtung zum bestreuen von strassen und dergleichen mit einem streugut
EP0048465A2 (fr) * 1980-09-19 1982-03-31 Willy Küpper Véhicule de répandage pour matières de dégèlement solides et liquides
DE9206372U1 (de) * 1992-04-03 1992-07-30 Max Pietsch KG GmbH & Co, 3014 Laatzen Reibradgetriebenes Streugerät für den Winterdienst
EP0639671A1 (fr) * 1993-08-20 1995-02-22 Marcel Boschung AG Dispositif d'épandage de matériaux de décongélation ou granulaires

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2011894A1 (de) * 1970-03-13 1971-09-30 Hubert Weisser KG, 7715 Braun hngen Streugerat
DE2606899A1 (de) * 1976-02-20 1977-09-01 Bosch Gmbh Robert Regeleinrichtung fuer eine einrichtung zum bestreuen von strassen und dergleichen mit einem streugut
EP0048465A2 (fr) * 1980-09-19 1982-03-31 Willy Küpper Véhicule de répandage pour matières de dégèlement solides et liquides
DE9206372U1 (de) * 1992-04-03 1992-07-30 Max Pietsch KG GmbH & Co, 3014 Laatzen Reibradgetriebenes Streugerät für den Winterdienst
EP0639671A1 (fr) * 1993-08-20 1995-02-22 Marcel Boschung AG Dispositif d'épandage de matériaux de décongélation ou granulaires

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2256740C2 (ru) * 2003-01-29 2005-07-20 ЗАО "Смоленский автоагрегатный завод АМО ЗИЛ" Машина дорожная с пескоразбрасывающим оборудованием, а также ее гидросистема
RU2263739C2 (ru) * 2003-01-29 2005-11-10 ЗАО "Смоленский автоагрегатный завод АМО ЗИЛ" Машина дорожная с распределителем противогололедных материалов, автоматическим управлением и контролем технологического процесса, с приводом транспортера от планетарного гидромотора, оснащенного преобразователем окружной скорости гидромотора в частоту
EP1607526A1 (fr) * 2004-06-09 2005-12-21 Grindsted Kommune, Park & Vej Système combiné d'entraínement et d'étalement d'asphalte

Also Published As

Publication number Publication date
NL1010056C2 (nl) 2000-03-13

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