EP3417951B1 - Vorrichtung und verfahren zum erzeugen von schlagimpulsen oder schwingungen für eine baumaschine - Google Patents

Vorrichtung und verfahren zum erzeugen von schlagimpulsen oder schwingungen für eine baumaschine Download PDF

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Publication number
EP3417951B1
EP3417951B1 EP17176586.0A EP17176586A EP3417951B1 EP 3417951 B1 EP3417951 B1 EP 3417951B1 EP 17176586 A EP17176586 A EP 17176586A EP 3417951 B1 EP3417951 B1 EP 3417951B1
Authority
EP
European Patent Office
Prior art keywords
piston
reversal point
working space
control unit
pressure fluid
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.)
Active
Application number
EP17176586.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3417951A1 (de
Inventor
Markus MERZHÄUSER
Tobias Moscaritolo
Henrik Uelhoff
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.)
Eurodrill GmbH
Original Assignee
Eurodrill 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
Priority to ES17176586T priority Critical patent/ES2922006T3/es
Application filed by Eurodrill GmbH filed Critical Eurodrill GmbH
Priority to EP17176586.0A priority patent/EP3417951B1/de
Priority to PT171765860T priority patent/PT3417951T/pt
Priority to DK17176586.0T priority patent/DK3417951T3/da
Priority to CA3005244A priority patent/CA3005244C/en
Priority to US15/984,043 priority patent/US10730075B2/en
Priority to KR1020180069600A priority patent/KR102090038B1/ko
Priority to JP2018115130A priority patent/JP6676104B2/ja
Priority to CN201810628094.5A priority patent/CN109127346B/zh
Publication of EP3417951A1 publication Critical patent/EP3417951A1/de
Application granted granted Critical
Publication of EP3417951B1 publication Critical patent/EP3417951B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
    • B06B1/183—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid operating with reciprocating masses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/10—Power-driven drivers with pressure-actuated hammer, i.e. the pressure fluid acting directly on the hammer structure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/18—Placing by vibrating
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B1/00—Percussion drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B1/00—Percussion drilling
    • E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
    • E21B1/04—Devices for reversing the movement of the rod or cable at the surface
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B1/00—Percussion drilling
    • E21B1/12—Percussion drilling with a reciprocating impulse member
    • E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
    • E21B1/26—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/40—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups with testing, calibrating, safety devices, built-in protection, construction details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/70—Specific application
    • B06B2201/73—Drilling

Definitions

  • the invention relates to a device for generating impact pulses or vibrations for a construction machine, having a housing, a piston which can be moved back and forth in a working chamber in the housing in a reversing manner between a first reversal point and a second reversal point, and a pressurized fluid supply through which in the region of the first reversal point and the second reversal point, pressure fluid can be introduced into and discharged from the working chamber, the piston being able to be set into the reversing movement to generate the impact pulses or the vibrations, according to the preamble of claim 1.
  • the invention further relates to a method for generating impact impulses or vibrations for a construction machine, in which a piston in a working chamber in a housing is reversibly moved back and forth between a first reversal point and a second reversal point, with the impact impulses or vibrations being generated by the piston is set in reversing motion by means of a pressure fluid and the pressure fluid is fed into and out of the working chamber in the area of the first reversal point and the second reversal point, according to the preamble of claim 10.
  • a vibrator is from the EP 1 728 564 B1 known.
  • the working space in the housing is divided into two pressure chambers by a working piston.
  • the two pressure chambers are targeted with a pressurized fluid via an inlet and an outlet alternately supplied or disposed of, so that the working piston moves reversing and generates an oscillation.
  • the time-coordinated supply and disposal of pressure fluid in the individual pressure chambers takes place via a complex channel arrangement in the working piston.
  • a control piston is also slidably mounted within the working piston, which can change its position relative to the working piston in a targeted manner by means of stops protruding on the end faces of the housing in order to open or block certain channels.
  • the supply and disposal of pressurized fluid is thus achieved by mechanical measures, with the pressurized fluid supply and disposal being switched over when certain switchover points are reached through the predetermined channels.
  • Comparable mechanical control devices for vibrators go, for example, from the GB-A-920,158 , US-A-4,026,193 or the US-A-4,031,812 out. All of these known devices have a working piston and a control piston, which open or close certain channels depending on the respective position in the housing, causing a targeted alternating supply of the two opposite pressure chambers for moving the working piston.
  • a generic device is from JP H11 158860 A out.
  • the movement of a piston is recorded with a displacement sensor, which includes a rod-shaped measuring component on the working piston.
  • the rod-shaped measuring component is slidably mounted in a cylindrical sleeve.
  • a solenoid valve for supplying pressurized fluid for reversing movement of the working piston is controlled.
  • Another vibrator is from the DE 30 38 835 A1 known.
  • a position of the working piston is determined via a laterally arranged position sensor device.
  • the recorded position data are used for the controlled supply of the pressure fluid to generate a reversing movement of the working piston.
  • the EP 0 449 586 A1 discloses a pile driver with an electro-hydraulic servo valve.
  • a control current causes a displacement of a hydraulic control piston, by means of which the pressure fluid for moving a working piston is controlled.
  • a displacement sensor is attached to the outside of the housing for position detection.
  • the invention is based on the object of specifying a device and a method for generating impact impulses or vibrations with which increased flexibility in setting and changing the impact or vibration behavior can be achieved with a simple and robust construction of the device.
  • a measuring device is provided for determining a position of the piston in the working chamber, that at least one controllable valve is provided, through which the pressure fluid can be fed into and/or discharged from the working chamber, and that a control unit is provided which is connected to the measuring device and the at least one controllable valve, the movement of the piston in the working chamber being able to be controlled and changed by the control unit.
  • a basic idea of the invention is to move away from the previously complex mechanical control of the piston in the working chamber and to provide an electrical or electronic control unit for this purpose.
  • at least one measuring device is provided for determining the position of the piston in the working space.
  • the measuring device can emit signals relating to position data of the piston continuously or at predetermined short time intervals. These signals or data are received by the control unit and processed depending on a predetermined control logic, with control signals or control data being generated for one or more controllable valves.
  • pressurized fluid can be fed into and discharged from the working space in a targeted manner.
  • the movement behavior of the piston in the housing can now be controlled and also changed in a particularly simple manner by changing or adapting the corresponding control logic in the control unit. In this way, the stroke and/or the frequency of the reversing movement of the piston can be controlled and changed relatively easily.
  • valves can be used for the device according to the invention.
  • the valve it is particularly expedient for the valve to be an electromagnetic valve.
  • the valve body can be adjusted between an open and a closed position by an electromagnetic arrangement. Intermediate positions can also be set here, so that the quantity of pressurized fluid fed into the working space is adjusted leaves.
  • any pressure fluid can be provided, hydraulic oil preferably being used.
  • the measuring device has a linear sensor. This is particularly useful when the piston in the housing is moved linearly between the two reversal points.
  • the measuring device has an elongate first measuring component which extends into the working space and into a free space in the piston.
  • the measuring component is not arranged behind a wall of the housing, but directly in the working space in which the piston moves.
  • the elongate first measurement component protrudes into a corresponding free space in the piston, with the piston preferably sliding along the first measurement component without contact.
  • a second measuring component a magnet
  • the two measuring components interact in such a way that a very precise determination of the position of the second measuring component and thus of the piston relative to the first measuring component and thus relative to the working space and the housing can be determined.
  • the first measuring component can have a coil in which the magnet induces a current of, for example, 4 to 20 mA as a measure of the position of the piston.
  • the piston can be moved reversingly in the housing in such a way that the piston does not touch the housing wall with its two end faces.
  • the device can be used as a so-called vibrator.
  • An advantageous embodiment of the invention consists in that an impact surface is arranged at at least one reversal point, on which the piston strikes in a targeted manner to generate an impact pulse.
  • an impact surface can be arranged on the two opposite end faces of the piston on the housing. However, only a single striking surface is preferred, so that targeted impact impulses can be generated, such as are desired for percussion drilling.
  • a frequency and/or a stroke of the piston can be set and adjusted by the control unit.
  • the control unit preferably has an input interface, for example an input field.
  • the control unit can also be actuated directly by an operator using a conventional machine control system from an operating unit.
  • control unit has a program memory in which various control programs for controlling the piston can be stored.
  • various control programs for controlling the piston can be stored.
  • special control programs can be stored for specific purposes. For example, at the beginning of a program, a high frequency with a small piston stroke can be provided, while the piston stroke then increases over time in the course of the program and a frequency decreases.
  • Almost any number of different program sequences can be provided for controlling the piston in terms of frequency and stroke.
  • a program for rapid propulsion or particularly gentle driving can be provided.
  • Programs for special soil types can also be stored.
  • the invention includes a construction machine, which is characterized in that the above-described device is arranged to generate impact impulses or vibrations.
  • the construction machine can be provided for civil engineering.
  • the construction machine it is particularly advantageous for the construction machine to be an earth boring device. If the device for generating percussion pulses is provided, percussion drilling can be carried out. This is particularly advantageous when penetrating harder layers of rock. Alternatively or additionally, the device can also be designed without impact contacts for generating vibrations. So-called overburden drilling can be carried out in particular in the case of an earth drilling device with a rotationally driven drilling tool. The rotary movement of the drilling tool is superimposed by a vibration or oscillation movement. By means of superimposed vibrations, a quasi liquefaction of the soil can be achieved, at least in the contact area with the drilling tool, which leads to improved drilling progress.
  • Rams or vibrators of this type can be used, for example, for installing steel girders, piles or sheet piling, which are driven into the ground by impact impulses or by vibrations.
  • the method according to the invention is characterized in that the position of the piston is detected with a measuring device and that a control unit, depending on the detected position of the piston, controls at least one controllable valve through which pressurized fluid is fed into and/or discharged from the working chamber, with the control unit controls the movement of the piston.
  • a device 10 which is designed to generate impact pulses.
  • the device 10 has a housing 12 with a cylindrical working chamber 14 in which an approximately cylindrical piston 20 is mounted so as to be linearly movable reversing between two reversal points.
  • the piston 20 is mounted in the housing 12 in a fluid-tight manner and, as shown in the exemplary embodiment, can protrude from the housing 12 with one side.
  • the piston 20 hits a corresponding impact surface 18, which can be, for example, a shank of a drilling drive shaft.
  • a first opening 15 for a first supply line 31 of a pressurized fluid supply 30 is provided on the housing 12 in the area of the upper first reversal point.
  • the working chamber 14 is connected to a second supply line 32 of the pressurized fluid supply 30 through a second opening 16 .
  • the two openings 15, 16 are alternately connected to a hydraulic pressure source P and an unpressurized disposal tank T via a controllable valve 36, which is designed as a 2/4-way valve in the exemplary embodiment shown.
  • a controllable valve 36 which is designed as a 2/4-way valve in the exemplary embodiment shown.
  • a measuring device 40 with a first elongate measuring component 42 is provided on the housing 12 .
  • the first measuring component 42 is rod-like and extends into the working chamber 14 and into a correspondingly arranged free space 22 in the piston 20.
  • a ring-shaped magnet is arranged in a lower area of the free space 22 as a second measuring component 44.
  • the second sensing component 44 is fixedly connected to the moveable piston 20 while the elongate first sensing component 42 is fixedly attached to the housing 12 .
  • the measuring device 40 is embodied as an inductive linear sensor, which exactly determines the position of the second measuring component 44 and thus of the piston 20 in relation to the elongated first measuring component 42 and thus the position of the piston 20 in the working chamber 14 .
  • the measuring device 40 is connected to a control unit 50 via a line connection 52, analog signals or digital data relating to the current position of the piston 20 in the working chamber 14 being transmitted.
  • the controllable valve 36 is activated via electromagnetic elements 37, so that the first supply line 31 is connected to the unpressurized tank T and the second supply line 32 is connected to the pressure source P, as in the drawing is shown.
  • the pressure source P can then be connected to the first supply line 31, while the tank T is connected to the second supply line 32.
  • the lower area of the working chamber 14 is then emptied of pressurized fluid, while at the same time an upper area of the working chamber 14 is filled with pressurized fluid, with the piston 20 then moving down from the upper first reversal point to the lower second reversal point. If the measuring device 14 determines that a triggering point of the piston 20 in the housing 12 has been reached, the valve 36 can then be switched over again by the control unit 50, so that a change in direction is effected by actuating the electromagnetic elements 37 of the controllable valve 36 via the control lines 54 becomes.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Agronomy & Crop Science (AREA)
  • Soil Sciences (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
EP17176586.0A 2017-06-19 2017-06-19 Vorrichtung und verfahren zum erzeugen von schlagimpulsen oder schwingungen für eine baumaschine Active EP3417951B1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP17176586.0A EP3417951B1 (de) 2017-06-19 2017-06-19 Vorrichtung und verfahren zum erzeugen von schlagimpulsen oder schwingungen für eine baumaschine
PT171765860T PT3417951T (pt) 2017-06-19 2017-06-19 Dispositivo e método para a produção de impulsos de impacto ou vibrações para uma máquina de construção
DK17176586.0T DK3417951T3 (da) 2017-06-19 2017-06-19 Anordning og fremgangsmåde til generering af slagimpulser eller svingninger til en byggemaskine
ES17176586T ES2922006T3 (es) 2017-06-19 2017-06-19 Dispositivo y procedimiento para generar impulsos de impacto o vibraciones para una máquina de construcción
CA3005244A CA3005244C (en) 2017-06-19 2018-05-18 Device and method for generating percussive pulses or vibrations for a construction machine
US15/984,043 US10730075B2 (en) 2017-06-19 2018-05-18 Device and method for generating percussive pulses or vibrations for a construction machine
KR1020180069600A KR102090038B1 (ko) 2017-06-19 2018-06-18 건설 기계용 타격 펄스 또는 진동을 발생 장치 및 방법
JP2018115130A JP6676104B2 (ja) 2017-06-19 2018-06-18 建設機械用の、衝撃パルスまたは振動を生成する装置および方法
CN201810628094.5A CN109127346B (zh) 2017-06-19 2018-06-19 用于为工程机械产生冲击脉冲或振动的装置和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17176586.0A EP3417951B1 (de) 2017-06-19 2017-06-19 Vorrichtung und verfahren zum erzeugen von schlagimpulsen oder schwingungen für eine baumaschine

Publications (2)

Publication Number Publication Date
EP3417951A1 EP3417951A1 (de) 2018-12-26
EP3417951B1 true EP3417951B1 (de) 2022-06-01

Family

ID=59093402

Family Applications (1)

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EP17176586.0A Active EP3417951B1 (de) 2017-06-19 2017-06-19 Vorrichtung und verfahren zum erzeugen von schlagimpulsen oder schwingungen für eine baumaschine

Country Status (9)

Country Link
US (1) US10730075B2 (ko)
EP (1) EP3417951B1 (ko)
JP (1) JP6676104B2 (ko)
KR (1) KR102090038B1 (ko)
CN (1) CN109127346B (ko)
CA (1) CA3005244C (ko)
DK (1) DK3417951T3 (ko)
ES (1) ES2922006T3 (ko)
PT (1) PT3417951T (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111705776B (zh) * 2020-06-23 2021-11-16 山东松岩建设工程有限公司 一种建筑施工用电磁轨道夯土机
HUE062993T2 (hu) * 2020-11-13 2023-12-28 Eurodrill Gmbh Szerkezet ütésimpulzusok vagy rezgések létrehozásához egy építõipari gép számára
CN113739908A (zh) * 2021-09-06 2021-12-03 中嵌科技(北京)有限公司 一种基于mems芯片的振动和冲击复合传感器

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Also Published As

Publication number Publication date
PT3417951T (pt) 2022-07-08
CA3005244C (en) 2020-04-28
DK3417951T3 (da) 2022-07-04
JP6676104B2 (ja) 2020-04-08
CN109127346B (zh) 2020-10-27
JP2019000846A (ja) 2019-01-10
KR20180138170A (ko) 2018-12-28
ES2922006T3 (es) 2022-09-06
CN109127346A (zh) 2019-01-04
US10730075B2 (en) 2020-08-04
US20180361432A1 (en) 2018-12-20
KR102090038B1 (ko) 2020-04-23
CA3005244A1 (en) 2018-12-19
EP3417951A1 (de) 2018-12-26

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