WO2021089603A1 - Procédé et dispositif de coupe de tranchée destinés à la création d'une tranchée dans le sol - Google Patents

Procédé et dispositif de coupe de tranchée destinés à la création d'une tranchée dans le sol Download PDF

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Publication number
WO2021089603A1
WO2021089603A1 PCT/EP2020/080928 EP2020080928W WO2021089603A1 WO 2021089603 A1 WO2021089603 A1 WO 2021089603A1 EP 2020080928 W EP2020080928 W EP 2020080928W WO 2021089603 A1 WO2021089603 A1 WO 2021089603A1
Authority
WO
WIPO (PCT)
Prior art keywords
speed
trench wall
torque
trench
milling
Prior art date
Application number
PCT/EP2020/080928
Other languages
German (de)
English (en)
Inventor
Andreas HUGL
Original Assignee
Bauer Maschinen 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=68470401&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2021089603(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bauer Maschinen Gmbh filed Critical Bauer Maschinen Gmbh
Priority to KR1020227013292A priority Critical patent/KR20220065857A/ko
Priority to CN202080071722.XA priority patent/CN114555889A/zh
Priority to CA3154436A priority patent/CA3154436A1/fr
Publication of WO2021089603A1 publication Critical patent/WO2021089603A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/246—Digging wheels; Digging elements of wheels; Drives for wheels drives
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids
    • E02F5/145—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids control and indicating devices

Definitions

  • the invention is further based on the knowledge that a rotary movement and in particular a speed and / or a torque of the at least one milling wheel can be detected relatively easily and precisely compared to a load. This enables a very precise and also fast control or regulation of a trench wall cutter when removing soil material. The invention thus enables even an inexperienced machine operator to work close to the performance limit of a trench wall cutter, so that efficient milling can be achieved with a high daily output.
  • a limit value does not have to be a fixed value. It can also be a dynamic limit value which depends on other factors and / or parameters and can change, for example on soil parameters, etc.
  • the limit values can in particular be limit value characteristics which are stored as characteristics or tables in the controller.
  • a preferred embodiment of the invention is that when the limit value for the speed or the torque is reached, the Vorrete speed of the trench wall cutter is reduced until the speed is again above a predetermined speed limit value or the torque is below a predetermined torque limit value.
  • the trench wall cutter can thus be operated with a relatively high target rate of advance and with a relatively high load. If the speed drops below a specified limit value or if the torque rises above a specified limit value, the control unit is designed so that the propulsion speed is changed, in particular reduced, until the speed again exceeds a specified speed limit value or the torque is below a predetermined torque limit value. Reducing the advance speed usually also reduces the load on the trench cutter. In this way, the load on the at least one milling wheel can be relieved, so that the rotational speed increases or the torque requirement is reduced.
  • the advance speed of the trench wall cutter is increased up to the target value for the advance speed when the speed is above the speed limit value or the torque is below the torque limit value.
  • the advance speed can be regulated as a function of the measured speed or the measured torque.
  • the limit value at which the propulsion speed is reduced when it is reached can be equal to the speed limit value or the torque limit value at which the propulsion speed is increased again.
  • these limit values can also be different and form a limit range. This counteracts the risk that the regulation of the system will start to oscillate.
  • the advance speed continues to be controlled as a function of a load on the trench wall cutter becomes.
  • the surcharge can be recorded as an additional measured value, with a limit value for an upper surcharge or a lower surcharge also being able to be entered into the control unit, at which the propulsion speed is reduced or increased.
  • a particularly good control or regulation of the trench wall cutter is achieved according to a further development of the invention in that the speed or the torque is recorded directly and a measured value for this is fed to the control unit.
  • the speed is recorded by means of a speed recorder or the torque is recorded by means of a torque transducer.
  • Speed pickups are well known and can in particular detect a speed on a drive shaft without contact. Detection can take place optically, inductively, magnetically or in any other known manner.
  • known torque transducers can be provided for example on a drive shaft to the milling wheel. Known torque transducers can work electronically with one or more strain gauges on a shaft, for example.
  • a further development of the method according to the invention can provide for the speed and / or the torque to be recorded indirectly. In this way, measuring devices directly on the milling wheel or milling wheel drive can be avoided in particular.
  • a power consumption of the rotary drive is measured in order to detect the speed and / or the torque. If, for example, the milling wheel hits a firmer soil layer at a given advance speed, this can be detected from an increase in the power consumption of the rotary drive. This is basically possible with all types of drive, for example also with an electric rotary drive.
  • a preferred embodiment variant of the invention consists in that the rotary drive is operated hydraulically with a hydraulic circuit, a pressure or a pressure change in the hydraulic circuit being detected.
  • the pressure applied to the hydraulic pumps in the hydraulic circuit can be used to control or regulate the advance speed can be used. If, for example, the torque rises above a defined limit value and thus the pressure applied to the hydraulic pumps, the propulsion speed can be reduced.
  • a limit value can preferably be approx. 10% below the pressure for a maximum speed or a maximum torque in order to still have sufficient reserve when operating the milling wheels.
  • control unit can be designed in such a way that when the at least one cutting wheel is completely blocked, the trench wall cutter is slightly raised by the control unit by means of the support device. This reduces the upright force and thus the required torque. The milling wheels can then start rotating again.
  • the support device is a carrier device with a support rope or a support rod
  • the trench wall cutter is suspended vertically adjustable on the support cable or the support rod.
  • the support cable or the support rod form a support element with which the trench cutter can be sunk vertically into the ground.
  • the support device can be a winch for the support cable or a linear drive, in particular a hydraulic cylinder device for the support rod.
  • a load can be carried out by a force transducer on the winch or a pressure sensor in the hydraulic system of the hydraulic cylinder.
  • the trench wall cutting device can only be designed with one cutting wheel or with a pair of two cutting wheels.
  • An expedient operation of the trench wall cutting device results from the fact that a total of four cutting wheels are provided, which are arranged in pairs next to one another.
  • the axis of the min least one milling wheel is directed transversely to the direction of advance, in particular horizontally. If there are two pairs of milling wheels, the two milling wheels of a milling wheel pair rotate around the same milling wheel axis.
  • the milling wheel axes of the two milling wheel pairs are arranged parallel and spaced from one another.
  • the invention is described below with reference to a preferred embodiment, which is shown schematically in the accompanying figure.
  • the one attached figure shows a perspective view of a trench wall cutting device 10 according to the invention.
  • a total of four milling wheels 34 are arranged in pairs, as is shown only schematically in the figure.
  • the milling wheels 34 can be set in rotary motion via a rotary drive 36, indicated schematically in the figure, on the milling frame 32, which is hydraulically driven.
  • a rotary drive 36 indicated schematically in the figure, on the milling frame 32, which is hydraulically driven.
  • An advance speed of the trench wall cutter 30 can be determined, for example, on the winch 28 by measuring the winch rotation over time.
  • a setpoint value for the advance speed can be entered in a control unit on the carrier device 22, as a result of which, for example, the winch 28 is controlled accordingly.
  • a speed and / or a torque of the milling wheels 34 can also be recorded directly or indirectly via the pressure on the hydraulic units, which are also arranged on the carrier device 22. If at a given advance speed of the trench wall cutter 30, the speed of the milling wheels 34 falls below a predetermined limit value, a drive for the winch 28 can be activated by the control unit in order to reduce the advance speed of the trench wall cutter 30. This reduction in the advance speed of the trench wall cutter 30 takes place until the speed of the cutting wheels 34 again exceeds a speed limit value. Subsequently, the advance speed of the trench wall cutter 30 can be increased again by the control unit by appropriate control of the winch 28 until the predetermined advance speed of the trench wall cutter 30 is reached. As an alternative or in addition, a control or regulation can also take place, taking into account the torque on the milling wheels 34.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Earth Drilling (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Road Repair (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

L'invention concerne un dispositif de coupe de tranchée et un procédé de création d'une tranchée dans le sol. Le dispositif de coupe de tranchée comprend un dispositif de coupe de tranchée et une unité de support qui est conçue pour soulever et abaisser le dispositif de coupe de tranchée dans le sol. Le dispositif de coupe de tranchée est relié à l'unité de support au niveau de son extrémité supérieure et comporte au moins une roue de coupe à son extrémité inférieure, qui est montée rotatif et qui peut être entraînée en rotation par l'intermédiaire d'un entraînement rotatif afin de retirer le matériau broyé. Une valeur cible pour une vitesse d'avance du dispositif de coupe de tranchée lors du retrait du matériau de sol peut être spécifiée dans une unité de commande, qui est utilisée pour commander un abaissement du dispositif de coupe de tranchée dans le sol par l'intermédiaire de l'unité de support. Pour une opération de coupe efficace, il est proposé que la vitesse d'avance soit commandée au moyen de l'unité de commande en fonction d'une vitesse de rotation et/ou d'un couple de l'au moins une roue de coupe, la vitesse d'avance du dispositif de coupe de tranchée étant réduite par rapport à la valeur cible pour la vitesse d'avance lorsqu'une valeur de seuil prédéfinie est atteinte pour la vitesse de rotation et/ou pour le couple.
PCT/EP2020/080928 2019-11-06 2020-11-04 Procédé et dispositif de coupe de tranchée destinés à la création d'une tranchée dans le sol WO2021089603A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020227013292A KR20220065857A (ko) 2019-11-06 2020-11-04 지반에서 커팅 트렌치를 생성하기 위한 방법 및 트렌치 커팅 장치
CN202080071722.XA CN114555889A (zh) 2019-11-06 2020-11-04 用于在土壤中产生铣削槽的方法和槽壁铣削装置
CA3154436A CA3154436A1 (fr) 2019-11-06 2020-11-04 Procede et dispositif de coupe de tranchee pour la production d?une tranchee coupee dans le sol

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19207471.4A EP3819434B1 (fr) 2019-11-06 2019-11-06 Procédé et dispositif de fraisage de paroi de fente permettant de créer une fente fraisée dans le sol
EP19207471.4 2019-11-06

Publications (1)

Publication Number Publication Date
WO2021089603A1 true WO2021089603A1 (fr) 2021-05-14

Family

ID=68470401

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/080928 WO2021089603A1 (fr) 2019-11-06 2020-11-04 Procédé et dispositif de coupe de tranchée destinés à la création d'une tranchée dans le sol

Country Status (5)

Country Link
EP (1) EP3819434B1 (fr)
KR (1) KR20220065857A (fr)
CN (1) CN114555889A (fr)
CA (1) CA3154436A1 (fr)
WO (1) WO2021089603A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114000557A (zh) * 2021-11-30 2022-02-01 江苏徐工工程机械研究院有限公司 铣槽机控制方法及铣槽机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997008395A1 (fr) * 1995-08-31 1997-03-06 Hitachi Construction Machinery Co., Ltd. Circuit de commande d'excavateur
EP1580327A1 (fr) * 2004-03-26 2005-09-28 BAUER Maschinen GmbH Appareil pour creuserdes tranchées dans le sol
EP2573275A1 (fr) * 2011-09-20 2013-03-27 Soilmec S.p.A. Machine permettant de creuser le sol

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4119210C1 (fr) 1991-06-11 1993-01-21 Bauer Spezialtiefbau Gmbh, 8898 Schrobenhausen, De
GB2303868B (en) 1995-07-31 1999-04-14 Cementation Piling & Found Improved auger piling
CN1249303C (zh) * 2003-02-27 2006-04-05 瓦克建筑设备股份公司 地面切割装置
DE10320662A1 (de) 2003-05-08 2004-12-02 Bauer Maschinen Gmbh Verfahren und Vorrichtung zur Bodenbearbeitung
CN105369817B (zh) * 2014-08-06 2018-06-29 中联重科股份有限公司 铣槽机铣削控制处理方法、装置、系统及铣槽机
CN205224140U (zh) * 2015-12-16 2016-05-11 长安大学 双速电驱动双轮铣槽机
EP3299523B1 (fr) 2016-09-21 2021-03-31 BAUER Spezialtiefbau GmbH Procédé et dispositif pour le traitement d'un sol de fondation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997008395A1 (fr) * 1995-08-31 1997-03-06 Hitachi Construction Machinery Co., Ltd. Circuit de commande d'excavateur
EP0790356B1 (fr) 1995-08-31 2002-06-12 Hitachi Construction Machinery Co., Ltd. Circuit de commande d'excavateur
EP1580327A1 (fr) * 2004-03-26 2005-09-28 BAUER Maschinen GmbH Appareil pour creuserdes tranchées dans le sol
EP2573275A1 (fr) * 2011-09-20 2013-03-27 Soilmec S.p.A. Machine permettant de creuser le sol

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114000557A (zh) * 2021-11-30 2022-02-01 江苏徐工工程机械研究院有限公司 铣槽机控制方法及铣槽机
CN114000557B (zh) * 2021-11-30 2022-10-14 江苏徐工工程机械研究院有限公司 铣槽机控制方法及铣槽机

Also Published As

Publication number Publication date
EP3819434B1 (fr) 2022-02-16
KR20220065857A (ko) 2022-05-20
CA3154436A1 (fr) 2021-05-14
EP3819434A1 (fr) 2021-05-12
CN114555889A (zh) 2022-05-27

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