EP4144919A2 - Procédé et engin de construction pour le compactage du sol - Google Patents

Procédé et engin de construction pour le compactage du sol Download PDF

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Publication number
EP4144919A2
EP4144919A2 EP22204100.6A EP22204100A EP4144919A2 EP 4144919 A2 EP4144919 A2 EP 4144919A2 EP 22204100 A EP22204100 A EP 22204100A EP 4144919 A2 EP4144919 A2 EP 4144919A2
Authority
EP
European Patent Office
Prior art keywords
cable
winch
winch drum
drum
winding
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.)
Granted
Application number
EP22204100.6A
Other languages
German (de)
English (en)
Other versions
EP4144919B1 (fr
EP4144919A3 (fr
EP4144919C0 (fr
Inventor
Andreas HUGL
David Pfeiffer
Andreas SCHUELL
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.)
Bauer Maschinen GmbH
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
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to EP22204100.6A priority Critical patent/EP4144919B1/fr
Publication of EP4144919A2 publication Critical patent/EP4144919A2/fr
Publication of EP4144919A3 publication Critical patent/EP4144919A3/fr
Application granted granted Critical
Publication of EP4144919B1 publication Critical patent/EP4144919B1/fr
Publication of EP4144919C0 publication Critical patent/EP4144919C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/46—Position indicators for suspended loads or for crane elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/485—Control devices automatic electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
    • B66D1/505—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control electrical
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil

Definitions

  • the invention relates to a method for soil compaction with a construction machine, in which a carrying cable is guided along a mast, the carrying cable is wound up and unwound by means of a rotatably mounted winch drum of a cable winch, the winch drum is driven in rotation by means of a winch drive, and a compacting element is arranged on the carrying cable which is moved vertically by the suspension cable, the suspension cable being unwound from the winch drum of the cable winch and the compaction element being lowered from a position above a floor surface on the suspension cable down to the floor surface, the compaction element striking the floor surface and thereby hitting the floor compressed, according to the preamble of claim 1.
  • the invention also relates to a construction machine for soil compaction with a mast, a carrying cable which is guided along the mast, a cable winch with a rotatably mounted winch drum on which the carrying cable is attached for winding and unwinding, a winch drive for driving the winch drum in rotation, a Compaction element attached to the suspension cable for vertical movement, and a control unit by which the cable winch is operable to unwind the suspension cable from the winch drum, the compaction element on the suspension cable being lowered to a ground surface and the compaction element to compact the ground up hitting the ground surface, according to the preamble of claim 11.
  • a generic construction machine is, for example, from the EP 3 708 528 A1 out.
  • the rope pressing device means an additional design effort and is associated with a corresponding space requirement on the construction machine.
  • the rope pressing device also requires maintenance at certain time intervals.
  • the invention is based on the object of specifying a method and a construction machine for soil compaction, with which the negative effects of a cable vibration of the carrying cable on the cable winding on the winch drum are counteracted in a particularly efficient manner.
  • the object is achieved on the one hand by a method having the features of claim 1 and on the other by a construction machine having the features of claim 11 solved.
  • Preferred embodiments of the invention are given in the dependent claims.
  • the carrying cable in the area of the winch is initially briefly tensioned and then, before the compacting element is lifted from the ground again, the carrying cable is automatically removed by the control unit from the winch drum by one certain amount is processed. Preferably, the carrying cable is wound up again immediately afterwards.
  • this method it is provided to counteract an incorrect winding of the carrying cable on the winch drum by first briefly tensioning the carrying cable in the area of the winch without lifting the compression element from the ground. Subsequently, before the compression element is lifted from the ground, the carrying cable tensioned in this way is automatically unwound and relaxed by the control unit by a certain amount, any misalignment of the winding on the winch drum that may have occurred being removed again by unwinding.
  • the carrying cable can then be automatically wound up again by the control unit and the compaction element can be lifted off the ground until the compaction element again reaches the desired starting position above the ground for a renewed compaction process.
  • the amount or degree of unwinding of the suspension cable before lifting the compression element again by winding up the suspension cable can be adjusted in any suitable manner. According to a further development of the invention, it is particularly advantageous that the carrying cable is unwound until the carrying cable is wound correctly on the winch drum. This will clean winding and thus less wear and tear on the suspension cable is also ensured in the long term.
  • the winding can be observed directly by a machine operator from a control cabin. Clean cable winding can also be ensured with any arrangement of the winch drum according to a further development of the invention by using a sensor unit, in particular a camera unit or a radar unit or another suitable sensor, to detect a winding of the suspension cable on the winch drum.
  • the image from the camera unit can be displayed to a machine operator in the machine cabin. Detection can take place optically, without contact using energy waves, tactilely, electronically, magnetically, by reed contact or in any other suitable manner.
  • the sensor unit can be connected to the control unit, which uses signals or data recorded by the sensor unit to determine whether the winding on the winch drum is correct.
  • the signal or the data can in particular be an image.
  • the sensor signal recorded for the rope winding is evaluated electronically, for example with image processing software.
  • the machine operator or the control unit can set an amount or a measure of the unwinding of the support cable individually until the cable winding on the winch drum is correct.
  • the amount of unwinding can be specified as an angle of rotation for the winch drum or a length for the carrying cable or a period of time for the control of the winch drive (at a defined speed).
  • the amount of unwinding of the carrying cable is set automatically by the control unit or by a machine operator before the compression element is lifted again.
  • the amount can be constant or variable.
  • a further development of the method for soil compaction according to the invention is characterized in that the winch drum is decoupled from the winch drive via a coupling device when the support cable is being unwound, that before the compaction element strikes the ground surface the winch drive is driven in a direction of rotation for winding up the support cable and that after the compaction element has hit the ground surface, the coupling device couples the winch drum to the winch drive, which is already driven in rotation.
  • the method is based on the knowledge that insufficient tension of the support cable in the area of the winch caused by cable vibration can cause cable windings on the winch drum to jump out of their intended position.
  • the winch drive is decoupled from the winch drum via a coupling device when the support cable is unwound in a period of time before the compression element hits the ground surface.
  • the movement of the winch drum is therefore independent of the movement of the winch drive. This independence can be used to operate the winch drive early in a direction of rotation, which is required to wind up the suspension cable.
  • the coupling device allows the winch drum to be reconnected or coupled to the winch drive, particularly immediately after the compaction element has hit the ground surface, whereby the torque of the winch drive applied to the drive shaft can have a direct effect on the winch drum and a resulting abrupt starting rotary movement of the winch drum Direction of winding up the support rope leads to very rapid rope tension in the area of the winch.
  • the carrying cable can be connected directly to the compression element.
  • a chain and/or a steel cable hanger is preferably arranged as a buffer between the support cable and the compression element.
  • compression of the carrying cable by standing on the compression element can be avoided when braking.
  • at least one additional weight for example in the form of a steel traverse, can optionally be arranged between the support cable and the steel cable hanger.
  • the soil compaction process can be carried out manually by a machine operator.
  • the method is carried out automatically by means of a control unit.
  • the control unit can in particular be connected to the winch drive and the clutch device and actuate them accordingly.
  • the control unit can also be connected to one or more sensors, by means of which a position of the compression element and/or the cable tension is detected.
  • the clutch device can be designed as a lockable overrunning clutch, with locking or unlocking being able to be effected by the control unit.
  • the coupling device can be designed in any suitable way.
  • the coupling device it is particularly expedient for the coupling device to comprise a free-fall brake, with the carrying cable being unwound when the compression element is in free fall.
  • a free-fall brake allows the winch drum to be driven with low friction solely by the weight of the compression element attached to the carrying cable, with the compression element being able to hit the ground surface in free fall, so to speak. In this free fall, there is a certain minimum tensile stress on the suspension cable.
  • the free-fall brake which can be part of the clutch device or form it as a whole, can be connected to the control unit, which can basically include an electronic computer unit.
  • the clutch device can be actuated at any point in time.
  • a preferred method variant of the invention consists in the coupling device carrying out a coupling when the compacting element reaches the ground surface. This ensures that, on the one hand, the compression element falls as freely as possible and, on the other hand, torque is transmitted from the winch drive to the winch drum immediately after it hits the ground in order to generate the desired cable tension of the carrying cable in the area of the winch.
  • any torque can be set on the winch drive for any period of time.
  • a tightening torque is generated by the winch drive when coupling, by means of which the carrying cable is tensioned in the area of the winch.
  • the tightening torque can preferably be designed in such a way that this leads to a desired cable tension, but the compression element is not lifted from the ground. A second, higher torque can then be set for lifting.
  • control unit is provided, which is designed to carry out one of the methods for soil compaction described above.
  • the control unit can in particular be an electronic control unit and in particular can be integrated into an existing control unit of a construction machine.
  • the winch drum can also be arranged directly on the mast and in particular in an upper region of the mast. It is particularly useful, according to a further development of the invention, that the suspension cable has a mast head on upper end of the mast is guided.
  • the winch drum and the winch drive can in particular be provided directly or close to a carrier device, so that the construction machine as a whole has the lowest possible overall center of gravity.
  • the carrier device can in particular have an undercarriage with an uppercarriage rotatably mounted thereon.
  • the undercarriage can in particular include a chassis, in particular a crawler chassis.
  • At least one sensor unit in particular a camera unit, a radar unit or an ultrasonic sensor or another suitable sensor, to be installed in the area of the winch drum for detecting a winding of the suspension cable the winch drum is arranged.
  • a constructed as a crawler crane construction machine 10 of the invention 1 has a mobile carrier device 12 .
  • the carrier device 12 includes a crawler chassis 14 on which an upper carriage 15 is rotatably mounted.
  • a mast 16 is mounted on the superstructure 15 so as to be pivotable about a horizontal pivot axis and is also referred to as a cantilever arm.
  • a holding beam 26, a support beam 28 and an adjusting cable mechanism 27 are provided on the superstructure 15 in a basically known manner.
  • At least one carrying cable 20 is guided from the superstructure 15 via a mast head 18 of the mast 16, on which a compacting element 30 is suspended, which in the exemplary embodiment shown is designed as an impact weight 32 for soil compaction.
  • the carrying cable 20 is driven in an adjustable manner via a double winch arrangement in the upper carriage 15, as is known in principle from the prior art.
  • a rope pressing device 40 can be arranged on the total of two sections of the support rope 20, one of which is attached to the support beam 26, also called the A-frame, and the other is attached to the mast 16.
  • the ends of the supporting cable 20 are each attached to a cable winch in the superstructure 15, so that a double cable winch arrangement is provided for fast lifting processes.
  • a control unit can be provided on the superstructure 15, in particular in a cabin.
  • the cable winch 22 has a winch drum 24 for winding and unwinding the carrying cable 20 .
  • the winch drum 24 can be driven to rotate in basically both directions of rotation via a winch drive 23 shown only partially via an interposed coupling device 25 .
  • the clutch device 25 can be designed as a lockable overrunning clutch or a so-called free-fall brake, with the carrying cable 20 being unwound solely by the weight of the compression element 30 in free fall, so to speak.
  • the coupling device 25 can immediately reestablish a non-rotatable connection between the winch drive 23 and the winch drum 24 .
  • a tightening torque of the winch drive 23 is applied to the winch drum 24 immediately when the coupling device 25 is coupled.
  • a desired tension of the support cable 20 in the area of the cable winch 22 can thus be brought about.
  • a clean winding of the suspension cable 20 on the winch drum 24 can be monitored by a camera unit 50 as a sensor unit. Instead of the camera unit 50, a radar unit, ultrasonic or other suitable sensor such. B. an optical sensor, a magnetic sensor or a reed contact can be used.
  • a machine operator or preferably automatically via the control unit can unwind the support cable 20 on the winch drum 24 if an undesired offset of the support cable 20 occurs before the compression element 30 being lifted off the ground again.
  • the winch drum 24 can be used to wind it up cleanly, with the compression element 30 then being lifted off the ground. A clean winding of the suspension cable 20 on the winch drum 24 can thus be established.
  • a fundamentally known further rope pressure device 40 with a plate-shaped pressure element 42 can be provided on the winch drum 24 .
  • the pressure element 42 is movably mounted by means of a base support 46 and can be pressed against the cable winding on the winch drum 24 by means of a pressure cylinder 48 to additionally avoid a cable offset.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • Automation & Control Theory (AREA)
  • Road Paving Machines (AREA)
EP22204100.6A 2020-11-11 2020-11-11 Procédé et engin de construction pour le compactage du sol Active EP4144919B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22204100.6A EP4144919B1 (fr) 2020-11-11 2020-11-11 Procédé et engin de construction pour le compactage du sol

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20206938.1A EP4001509B1 (fr) 2020-11-11 2020-11-11 Procédé et machine de construction destinés au compactage du sol
EP22204100.6A EP4144919B1 (fr) 2020-11-11 2020-11-11 Procédé et engin de construction pour le compactage du sol

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP20206938.1A Division EP4001509B1 (fr) 2020-11-11 2020-11-11 Procédé et machine de construction destinés au compactage du sol
EP20206938.1A Division-Into EP4001509B1 (fr) 2020-11-11 2020-11-11 Procédé et machine de construction destinés au compactage du sol

Publications (4)

Publication Number Publication Date
EP4144919A2 true EP4144919A2 (fr) 2023-03-08
EP4144919A3 EP4144919A3 (fr) 2023-04-26
EP4144919B1 EP4144919B1 (fr) 2024-08-07
EP4144919C0 EP4144919C0 (fr) 2024-08-07

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Family Applications (3)

Application Number Title Priority Date Filing Date
EP23186219.4A Active EP4249685B1 (fr) 2020-11-11 2020-11-11 Procédé et engin de construction pour le compactage du sol
EP20206938.1A Active EP4001509B1 (fr) 2020-11-11 2020-11-11 Procédé et machine de construction destinés au compactage du sol
EP22204100.6A Active EP4144919B1 (fr) 2020-11-11 2020-11-11 Procédé et engin de construction pour le compactage du sol

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP23186219.4A Active EP4249685B1 (fr) 2020-11-11 2020-11-11 Procédé et engin de construction pour le compactage du sol
EP20206938.1A Active EP4001509B1 (fr) 2020-11-11 2020-11-11 Procédé et machine de construction destinés au compactage du sol

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EP (3) EP4249685B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115821913A (zh) * 2022-11-03 2023-03-21 北京瑞力通地基基础工程有限责任公司 一种具有质量控制的孔内深层强夯法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3708528A1 (fr) 2019-03-12 2020-09-16 BAUER Maschinen GmbH Machine de travail et procédé de fonctionnement de la machine de travail

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
DE1040215B (de) * 1955-06-17 1958-10-02 Asea Ab Vorrichtung zur Vermeidung von Schlappseilbildung
JPH076182B2 (ja) * 1987-04-23 1995-01-30 日立建機株式会社 動圧密工法の施工管理装置
CN106149671B (zh) * 2015-03-23 2018-09-04 徐工集团工程机械股份有限公司 强夯机自动作业的控制系统和方法、及强夯机
DE102015115146A1 (de) * 2015-09-09 2017-03-09 Bauer Maschinen Gmbh Baumaschine und Verfahren zum Auf- und Abbewegen eines Hubelementes
DE102016008819A1 (de) * 2016-07-19 2018-01-25 Liebherr-Werk Nenzing Gmbh Schlagzahloptimierung
CN107829424A (zh) * 2017-11-08 2018-03-23 泰安大地强夯重工科技有限公司 一种自动遥控强夯机

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3708528A1 (fr) 2019-03-12 2020-09-16 BAUER Maschinen GmbH Machine de travail et procédé de fonctionnement de la machine de travail

Also Published As

Publication number Publication date
EP4249685A2 (fr) 2023-09-27
EP4144919B1 (fr) 2024-08-07
EP4249685B1 (fr) 2025-07-30
EP4249685C0 (fr) 2025-07-30
EP4001509A1 (fr) 2022-05-25
EP4001509B1 (fr) 2023-09-06
EP4249685A3 (fr) 2023-10-18
EP4144919A3 (fr) 2023-04-26
EP4144919C0 (fr) 2024-08-07

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