EP1990100B1 - Baumaschine zum Erzeugen von Schwingungen - Google Patents

Baumaschine zum Erzeugen von Schwingungen Download PDF

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Publication number
EP1990100B1
EP1990100B1 EP07009412A EP07009412A EP1990100B1 EP 1990100 B1 EP1990100 B1 EP 1990100B1 EP 07009412 A EP07009412 A EP 07009412A EP 07009412 A EP07009412 A EP 07009412A EP 1990100 B1 EP1990100 B1 EP 1990100B1
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EP
European Patent Office
Prior art keywords
transmission
line
lubricant
construction machine
hydraulic
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
EP07009412A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1990100A1 (de
Inventor
Franz Seraph Höss
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 ES07009412T priority Critical patent/ES2331972T3/es
Priority to EP07009412A priority patent/EP1990100B1/de
Priority to DE502007001542T priority patent/DE502007001542D1/de
Priority to AT07009412T priority patent/ATE442915T1/de
Priority to RU2008116287/03A priority patent/RU2375524C1/ru
Priority to US12/149,508 priority patent/US7980788B2/en
Priority to UAA200805958A priority patent/UA89703C2/ru
Priority to JP2008122890A priority patent/JP4578537B2/ja
Priority to CN200810099148XA priority patent/CN101302762B/zh
Priority to KR1020080044035A priority patent/KR101004431B1/ko
Publication of EP1990100A1 publication Critical patent/EP1990100A1/de
Application granted granted Critical
Publication of EP1990100B1 publication Critical patent/EP1990100B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
    • E02F3/405—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors using vibrating means
    • 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
    • B06B1/186—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid operating with rotary unbalanced masses
    • 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
    • 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
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/102—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables operatively associated with mole-ploughs, coulters
    • E02F5/103—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables operatively associated with mole-ploughs, coulters with oscillating or vibrating digging tools
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • E02F9/221—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for generating actuator vibration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19991—Lubrication

Definitions

  • the invention relates to a construction machine, in particular for generating vibrations, according to the preamble of claim 1.
  • a construction machine is formed with a transmission, at least one hydraulic drive, which is arranged to actuate the transmission, and a hydraulic circuit for supplying the hydraulic drive with hydraulic fluid, wherein from the hydraulic circuit branches off at least one lubrication line, by means of which the hydraulic fluid can be supplied as a lubricant.
  • a generic construction machine is from the DE 101 15 260 C2 and the same priority EP 1 245 737 A2 known. These documents teach to connect the hydraulic circuit of a hydraulic drive with the lubrication circuit of a transmission, so that the hydraulic fluid serves as a lubricating oil.
  • the FR 2 775 732 describes a vibrator with a bearing which is lubricated by means of a lubrication circuit.
  • an auxiliary lubrication circuit is provided, which has an additional pump. This additional pump is actuated by means of a drive which also actuates the masses of the vibrator.
  • the GB 1 435 499 discloses a vibrator, for example for driving foundation elements into the ground, which has fluid-driven imbalance masses which are hydrostatically supported.
  • the DE 69 50 437 U describes a hydrodynamic vehicle transmission with a designed for a lower speed range flow converter whose emptying line is controllable.
  • a ship propulsion with a ship propeller whose wings have an adjustable angle of attack For adjusting the angle of attack, a hydraulic actuator is provided. To supply oil to the actuator, a separate storage reservoir is provided, which is connected to a transmission via an intake and a compensation line.
  • a vibrator for homogenizing mixtures which has a combined hydraulic-lubricant circuit is known from US 4,039,167 known.
  • the object of the invention is to develop a generic construction machine so that a high operational reliability is achieved with high versatility.
  • the construction machine according to the invention is characterized in that a metering device is provided on the lubrication line with which a flowing in the lubrication line lubricant flow between the hydraulic circuit and the transmission is adjustable according to an operating condition of the transmission, and with which the supply of lubricant depending on the operating condition of the Geretes is changeable.
  • a basic idea of the invention can be seen to provide a metering device for the lubricant, with which the flowing in the lubrication line lubricant flow between the hydraulic circuit and the transmission in accordance with the operating condition of the transmission selectively adjustable, in particular controllable and / or controllable.
  • the invention is based on the idea that the lubricant requirement of the transmission can be dependent on its operating state.
  • a variable lubricant requirement may arise, for example, from the fact that at higher transmission speeds the lubricant dwells shorter at the lubrication points and / or that a larger amount of heat is dissipate.
  • the inventively variable lubricant flow can ensure reliable lubrication in this context, even at high transmission speeds, while ensuring at lower speeds that no unnecessarily high amount of fluid is withdrawn from the hydraulic circuit and possibly an undesirably large amount of lubricant accumulates in the lubricating oil sump of the transmission.
  • An operating state-dependent lubricant requirement of the transmission can also be given in particular if the removal of lubricant from the transmission is carried out as a function of operating state, in particular speed-dependent.
  • the ratio of the feed rate and the discharge rate of the lubricant to the transmission is always constant regardless of the operating state.
  • the rates can be set the same size. This ensures that the gearbox does not run full of lubricant or run dry even during prolonged operation.
  • the discharge rate from the transmission is greater than the delivery rate into the transmission.
  • compensation means may be provided which return a portion of the discharged lubricant back into the transmission.
  • the speed of the transmission can be understood.
  • the operating state can also be, for example, the level of lubricant in the transmission.
  • the operating state-dependent lubricant supply according to the invention allows a metered forced lubrication of the transmission.
  • the invention makes it possible to operate the construction machine with variable transmission speed with speed-independent, a particularly reliable transmission lubrication is given.
  • a particularly versatile and at the same time reliable construction machine is obtained. If the construction machine is designed to generate vibrations, in particular as a vibrator, the variable transmission speed makes it possible to gently and reliably vibrate the most varied components into the ground, even with variable soil geologies.
  • the metering device has a metering pump which is mechanically coupled to the transmission.
  • the metering pump which provides for the promotion of the lubricant in the transmission, is driven by at least one element of the transmission.
  • the mechanical coupling allows a state-dependent operation of the metering device in a particularly simple and reliable manner. In principle, however, it would also be possible, for example, to detect the operating state of the transmission by means of an electronic sensor and to adjust the lubricant inflow into the transmission by means of an electronic actuator.
  • a lubricant return device is provided, with the lubricant depending on the operating condition of the transmission from the transmission can be discharged.
  • both the supply rate of lubricant into the transmission and the discharge rate of lubricant from the transmission are set to operate state.
  • the lubricant return device has at least one lubricant return line, on which a lubricant return pump is arranged.
  • this lubricant return pump is mechanically coupled to the transmission.
  • the lubricant return pump similar to the metering pump, is mechanically driven by an element of the transmission.
  • the invention In connection with a speed-dependent discharge of lubricant from the transmission, the invention has particularly extensive advantages. If in this case, as known from the prior art, the lubricant supply to the transmission set constant, the pump size of the lubricant return pump would have to be dimensioned so that even at the lowest occurring transmission speed, the accumulated lubricant can be reliably pumped out. However, this involves a certain oversizing of the lubricant return pump with it. In this case, if the transmission is operated at a higher speed, in particular at the rated speed, then the oversized pump would possibly convey more oil than is present in the transmission sump.
  • the supply amount of lubricating fluid in the transmission is adjusted speed dependent.
  • the amount of lubricant supplied and discharged can thus be in a fixed relationship to one another according to the invention.
  • the lubricant return pump does not have to be overdimensioned so that undesired foaming of the oil is counteracted.
  • the amount funded by the metering pump preferably both of the metering pump and the funded by the lubricant return pump amount of lubricant is proportional to the speed of the transmission.
  • the operational reliability can be further increased by the fact that, in particular on the side facing away from the transmission of the lubricant return pump, branches off from the lubricant return line, a compensation line, which opens, preferably via a throttle in the transmission.
  • the compensation line can serve, for example, to return gas components, which may be removed from the transmission by the lubricant return pump, into the transmission.
  • a compensation line can also be counteracted a complete dry running of the transmission.
  • a leak oil line is provided for discharging leak oil from the hydraulic drive and / or from the metering pump.
  • a common drain line is provided for discharging leakage oil from both the hydraulic drive and the metering pump.
  • a relief line is provided, with which the lubricating line, the lubricant return line and / or the leak oil line, in each case via a pressure relief valve, are in line connection, wherein the discharge line opens into the transmission.
  • the lubricant return line is downstream of the lubricant return pump with the relief line in line connection.
  • the lubrication line may branch off from a drain line of the hydraulic circuit. Alternatively or additionally, it may be provided to supply return oil of the hydraulic drive to the transmission.
  • a preferred development of the invention thus consists in that the lubrication line branches off from a return line of the hydraulic circuit. According to this embodiment, the lubricant is diverted from the flow flowing from the hydraulic motor. In the drain line and / or the return line of the hydraulic circuit is given a comparatively low hydraulic pressure, which is particularly suitable for the lubrication function in the rule.
  • it can be provided to supply the transmission with a basic flow from the return line and an operating state-dependent additional flow from the leak oil line.
  • the hydraulic drive is arranged for actuating the transmission.
  • the hydraulic drive is suitably provided on a drive shaft of the transmission.
  • the transmission may be, for example, a rotary transmission, in particular a gear transmission.
  • the hydraulic drive is preferably a hydraulic rotary motor.
  • a particularly versatile and / or powerful construction machine is given by the fact that at least two hydraulic drives for driving the transmission are each provided with a return line.
  • the lubricating line is in line connection with both return lines.
  • a pressure switch is provided on the lubrication line, in particular on the side of the metering pump facing the transmission.
  • At least one imbalance is arranged on the transmission.
  • a plurality of imbalances are provided, the phase position is variable to adjust the vibration amplitude.
  • the construction machine which can also be referred to as a vibrator, it is preferably a harrow, with the components, such as foundation elements, sheet piles and / or tillage tools can be driven into the ground.
  • a holder for a component is preferably provided on the transmission.
  • the construction machine may be an attachment vibrator or a depth vibrator.
  • the construction machine can be provided in particular for soil compaction.
  • the fluids according to the invention are expediently liquids, in particular oil.
  • at least one hydraulic pump is provided which is arranged in the hydraulic circuit.
  • this hydraulic pump is provided on a carrier device on which the transmission is arranged adjustable together with the hydraulic drive. It is particularly advantageous that means for adjusting the rotational speed of the hydraulic drive are provided.
  • the hydraulic pump is expediently provided adjustable.
  • the hydraulic circuit may be formed as an open or closed circuit.
  • the invention also includes a method for creating a sheet pile wall, in which sheet piles are subjected to a mechanical vibration by means of a construction machine according to the invention and driven into the ground.
  • a construction machine according to the invention is in Fig. 1 shown.
  • Trained as a vibrator construction machine has a transmission 3, in which two first imbalances 6 and two second imbalances 6 'are provided for vibration generation.
  • a Hydroschwenkmotor 61 is arranged, by means of which the phase position of the first imbalance 6 relative to the second imbalance 6 'is adjustable.
  • To actuate the Hydroschwenkmotors 61 are provided on this two operating lines 60, 60 'for hydraulic fluid.
  • two hydraulic drives 5, 5 ' are provided which are in mechanical connection with the imbalances 6, 6'.
  • a supply line 51 is arranged on this.
  • a supply line 51' is arranged for supplying hydraulic fluid to the hydraulic drive 5 'at this.
  • a return line 50 or 50' is provided on each of these.
  • a check valve 53 is arranged between the supply line 51 and the return line 50 of the hydraulic drive 5, which allows a flow from the return line 50 into the supply line 51 and blocks a reverse directed current.
  • An analogue designed check valve 53 ' is given between the feed line 51' and the return line 50 'of the hydraulic drive 5'.
  • two hydraulic pumps not shown in the figures are provided, which are connected to the lines 50 and 51 or 50' and 51 'in combination.
  • a lubrication line 10 is provided, which is in line connection both with the return line 50 of the hydraulic drive 5 and with the return line 50 'of the hydraulic drive 5' and thus from the hydraulic drives 5, 5 'returning fluid from the return lines 50, 50' dissipate and can supply the gear 3 as a lubricant.
  • fluid is supplied from the lubrication line 10 to the lubrication points of the transmission 3.
  • a metering pump 16 is arranged on the lubrication line 10. This metering pump 16 is mechanically connected to the transmission 3, in particular the imbalances 6, 6 ', so that the pump speed and thus the pumped by the metering pump 16 lubricant flow is determined by the transmission speed, in particular is proportional thereto.
  • a pressure switch 19 is provided on the lubrication line 10, which closes at a predetermined pressure and thus allows monitoring of a proper lubrication.
  • a lubricant return line 20 is provided which opens into the sump of the transmission 3. Via this lubricant return line 20, lubricant is returned from the transmission 3 to a collection tank, not shown in the figures, from which fluid in turn can be fed by means of the hydraulic pumps into the supply lines 51, 51 'of the hydraulic drives 5, 5'.
  • a lubricant return pump 26 is arranged, which is like the metering pump 16 mechanically connected to the transmission 3, so that their delivery rate is also dependent on the speed of the transmission 3. The speed dependency of the delivery rate of both pumps 16 and 26 ensures that the gear 3 is running during operation neither full of lubricating medium still running dry.
  • a compensation line 28 is connected, which leads via a throttle 27 in the transmission 3 and can serve for example for returning gas fractions from the lubricant return line 20 into the transmission 3.
  • the metering pump 16 is connected via a connecting line 32 with the drain line 30 and optionally also with the drain line 31 of the hydraulic drives 5, 5 'in line connection.
  • the metering pump 16 fluid from the drain lines 30th and / or 31 and feed the gear 3 as a lubricant.
  • the connecting line 32 can also serve for the discharge of leakage oil, which is obtained at the metering pump 16.
  • the device shown has a relief line 40, into which the lubricating line 10 via a pressure limiting valve 41, the lubricant return line 20 via a pressure relief valve 42 and the drain line 36 via a pressure relief valve 43 open.
  • the discharge line 40 leads into the transmission 3 and can discharge fluid from the lines 10, 20 and / or 30 into the transmission 3 for overpressure protection.
  • the device of Fig. 1 has a further pressure switch 39, which is connected to the drain lines 30, 36 in line connection.
  • This pressure switch 39 opens when a predetermined. Pressure. It can thus serve to detect an increase in pressure in the leak-oil lines 30, 36, which indicates a possible malfunction of the hydraulic drives 5, 5 'or of the hydraulic swivel motor 61.
  • the hydraulic drives 5, 5 ' acted upon by the supply lines 51, 51' with pressurized fluid and drive the gearbox 3 at.
  • the fluid discharged by the hydraulic drives 5, 5 ' is discharged via the return lines 50, 50'.
  • At least a portion of the returning fluid is supplied via the lubrication line 10 to the transmission 3 as a lubricant.
  • the metering pump 16, which is mechanically connected to the transmission 3, ensures that the transmission 3 is supplied with a speed-dependent lubricant quantity.
  • lubricant is discharged in the bottom region of the transmission 3 via the lubricant return line 20.
  • the discharged amount is thereby set by means of the lubricant return pump 26, which is also mechanically connected to the transmission 3, gearbox speed dependent.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Paleontology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Details Of Gearings (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Soil Working Implements (AREA)
  • Motor Or Generator Frames (AREA)
  • Vibration Prevention Devices (AREA)
EP07009412A 2007-05-10 2007-05-10 Baumaschine zum Erzeugen von Schwingungen Active EP1990100B1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
ES07009412T ES2331972T3 (es) 2007-05-10 2007-05-10 Maquina de construccion generadora de vibraciones.
EP07009412A EP1990100B1 (de) 2007-05-10 2007-05-10 Baumaschine zum Erzeugen von Schwingungen
DE502007001542T DE502007001542D1 (de) 2007-05-10 2007-05-10 Baumaschine zum Erzeugen von Schwingungen
AT07009412T ATE442915T1 (de) 2007-05-10 2007-05-10 Baumaschine zum erzeugen von schwingungen
RU2008116287/03A RU2375524C1 (ru) 2007-05-10 2008-04-28 Строительная машина и способ возведения шпунтовой стенки
US12/149,508 US7980788B2 (en) 2007-05-10 2008-05-02 Construction machine
UAA200805958A UA89703C2 (en) 2007-05-10 2008-05-07 Construction machine
JP2008122890A JP4578537B2 (ja) 2007-05-10 2008-05-09 建設機械及びその建設機械で矢板壁を構築するための方法
CN200810099148XA CN101302762B (zh) 2007-05-10 2008-05-12 施工机械
KR1020080044035A KR101004431B1 (ko) 2007-05-10 2008-05-13 시공 기계

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07009412A EP1990100B1 (de) 2007-05-10 2007-05-10 Baumaschine zum Erzeugen von Schwingungen

Publications (2)

Publication Number Publication Date
EP1990100A1 EP1990100A1 (de) 2008-11-12
EP1990100B1 true EP1990100B1 (de) 2009-09-16

Family

ID=38293373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07009412A Active EP1990100B1 (de) 2007-05-10 2007-05-10 Baumaschine zum Erzeugen von Schwingungen

Country Status (10)

Country Link
US (1) US7980788B2 (ja)
EP (1) EP1990100B1 (ja)
JP (1) JP4578537B2 (ja)
KR (1) KR101004431B1 (ja)
CN (1) CN101302762B (ja)
AT (1) ATE442915T1 (ja)
DE (1) DE502007001542D1 (ja)
ES (1) ES2331972T3 (ja)
RU (1) RU2375524C1 (ja)
UA (1) UA89703C2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015002714U1 (de) * 2015-04-13 2016-07-14 Liebherr-Werk Nenzing Gmbh Rüttelvorrichtung

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CN103912529B (zh) * 2013-01-08 2017-10-20 迪尔公司 改进的液压流体预热装置
US9340950B2 (en) * 2013-01-08 2016-05-17 Deere & Company Hydraulic fluid warm-up
EP3228392B1 (de) * 2016-04-05 2019-08-28 BAUER Maschinen GmbH Vibrationsrammgerät
CN106192977A (zh) * 2016-07-18 2016-12-07 华中科技大学 一种液压混合动力强夯机
EP3696327B1 (de) * 2019-02-15 2021-02-24 ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH Tiefbaugerät
CN116201778B (zh) * 2023-03-28 2023-11-17 山东临工工程机械有限公司 一种打桩控制方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015002714U1 (de) * 2015-04-13 2016-07-14 Liebherr-Werk Nenzing Gmbh Rüttelvorrichtung

Also Published As

Publication number Publication date
ES2331972T3 (es) 2010-01-21
UA89703C2 (en) 2010-02-25
KR101004431B1 (ko) 2010-12-28
US20080279638A1 (en) 2008-11-13
ATE442915T1 (de) 2009-10-15
RU2375524C1 (ru) 2009-12-10
DE502007001542D1 (de) 2009-10-29
CN101302762A (zh) 2008-11-12
CN101302762B (zh) 2010-09-29
KR20080099832A (ko) 2008-11-13
JP2008280837A (ja) 2008-11-20
JP4578537B2 (ja) 2010-11-10
EP1990100A1 (de) 2008-11-12
US7980788B2 (en) 2011-07-19

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