NL2010487C2 - Vibrator device for sinking a workpiece into the ground. - Google Patents

Vibrator device for sinking a workpiece into the ground. Download PDF

Info

Publication number
NL2010487C2
NL2010487C2 NL2010487A NL2010487A NL2010487C2 NL 2010487 C2 NL2010487 C2 NL 2010487C2 NL 2010487 A NL2010487 A NL 2010487A NL 2010487 A NL2010487 A NL 2010487A NL 2010487 C2 NL2010487 C2 NL 2010487C2
Authority
NL
Netherlands
Prior art keywords
motor
hydraulic system
pressure
pressure sensor
clamping device
Prior art date
Application number
NL2010487A
Other languages
Dutch (nl)
Inventor
Arend Gier
Original Assignee
Dieseko Group B V
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 Dieseko Group B V filed Critical Dieseko Group B V
Priority to NL2010487A priority Critical patent/NL2010487C2/en
Application granted granted Critical
Publication of NL2010487C2 publication Critical patent/NL2010487C2/en

Links

Classifications

    • 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
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/02—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers specially adapted for placing or removing bulkheads

Description

Vibrator device for sinking a workpiece into the ground
The invention relates to a vibrator device for sinking a workpiece into the ground by means of vibrating said workpiece, comprising a vibrating block with eccentric weights and a clamping device mounted to said vibrating block. The clamping device is arranged to clamp the workpiece while it is vibrated into the ground.
Such a vibrator device is generally known in the art and for instance disclosed in EP-A-1 686 215. Commonly the clamping device is hydraulically powered by a first hydraulic system that comprises a first hydraulic pump driven by a first motor. Through a separate pump this first motor also provides power to the eccentric weights for their rotation so as to cause the vibration of the vibrating block.
The known vibrator device is operated for many hours during the day and considering the high power involved, the known vibrator device suffers from high operational costs due to maintenance requirements. For the same reason also energy consumption and energy costs are high.
It is an object of the invention to reduce the operational costs and to reduce the energy costs. It is a further object to obtain advantages in comparison with the known system that will become apparent from the following disclosure.
The vibratory device of the invention has the features of one or more of the appended claims.
According to a first aspect of the invention, the vibratory device comprises a control system which is wired for monitoring the power delivered and/or time of operation of the first motor and said control system is arranged to switch off the first motor of the first hydraulic system that powers the clamping device, depending on the measured power delivered by it and/or its measured time of operation so as to prevent that the first motor operates substantially below a pre-established power level or longer than a pre-established time with less than a pre-established rpm value. Accordingly said motor of this hydraulic system of the vibratory device of the invention can be operated substantially on an as needed basis, resulting in that both the energy consumption and the maintenance costs of the device are considerably reduced with reference to the vibratory device of the prior art. Practice has shown that of every four hours of operation of the vibratory device, only one hour is effective meaning that three out of four hours the concerning motor of the vibratory device of the prior art runs idle. Needless to say that preventing the operation and energy consumption in three out of four hours also tremendously reduces the production of coal dioxide.
To ensure the safe operation of the vibrator device of the invention, it is desirable that the control system comprises a secondary hydraulic system and a first pressure sensor for measuring the hydraulic pressure to the clamping device, which secondary hydraulic system is arranged to be operational depending on the first pressure sensor. In this way it is possible to ensure that the hydraulic pressure provided by the first hydraulic system to the clamping device is maintained by the secondary hydraulic system when the first motor of the first hydraulic system is switched off. The workpiece clamped by the clamping device is thus safely maintained clamped by the device.
The swift and adequate control of the pressure provided to the clamping device is arranged in an embodiment of the vibratory device of the invention, which is provided with the feature that the control system comprises a secondary hydraulic system which is arranged with a pressure accumulator for selectively providing hydraulic pressure to the clamping device so as to maintain this device in the clamped position.
The reliability of the system is promoted by arranging that the secondary hydraulic system comprises a second hydraulic pump driven by a second motor and a second pressure sensor, wherein the second motor is operational depending on the second pressure sensor such that said motor is activated when the pressure in the second hydraulic system as measured by the second pressure sensor is below a predetermined pressure value. In this way the hydraulic pressure in the second hydraulic system can easily and only when needed be brought back at the required level to ensure that ultimately the hydraulic pressure provided to the clamping device is maintained at the desired level. Of course the said second motor will on- ly be used rarely. And when it is used the second motor needs only be operational until the second pressure sensor indicates that the pressure is back to the required level or higher. Accordingly the vibratory device of the invention has the feature that the second motor is switched off when the pressure in the second hydraulic system as measured by the second pressure sensor has reached a predetermined maximum value.
A further desirable feature to increase the reliability and safety of the system relates to the situation that the first hydraulic system has a first motor of the combustion type and a voltage cell for starting said first motor. In this situation it is beneficial that the control system is arranged to monitor the load level of the voltage cell and switch on the first motor of the first hydraulic system when said load level is below a predetermined value. This increases the load level of the voltage cell and ensures that the load conditions of the voltage cell are maintained sufficiently high to be able to start up the first motor when this is needed.
The invention will hereinafter be further elucidated with reference to the drawing of a single figure showing schematically an exemplary embodiment of the vibratory device of the invention and a circuit diagram for control of this vibratory device. This exemplary embodiment is not limiting as to the appended claims, yet only serves to resolve any possible ambiguity concerning these claims.
The single figure of the drawing shows a vibrator device for sinking a workpiece 10 into the ground by means of vibrating said workpiece 10. As is known to the skilled person the vibrator device is essentially formed by a vibrating block 5 with eccentric weights, and a clamping device 4 mounted to said vibrating block 5. Commonly the clamping device 4 is hydraulically powered by a first hydraulic system 1, 3 that comprises a first hydraulic pump 6 driven by a first motor 2, usually a combustion engine, although it is also possible to apply an electrical motor. Providing power to the clamping device 4 is realized by operating the control valve 7 of the first hydraulic system 1, 3 which enables that the hydraulic pressure from the pump 6 driven by the first motor 2, is provided to the clamping device 4 enabling it to clamp a work piece 10. The first motor 2 also powers a pump 19 which (through piping not shown) powers the eccentric weights of the vibrating block 5.
According to the invention a control system 8, 9, 12 is provided, comprising a measurement and control device 9 -usually a computer- which is wired for monitoring the power delivered and/or time of operation of the first motor 2. The said measurement and control device 9 of the control system 8, 9, 12 is arranged to switch off the first motor 2 depending on the measured power delivered and/or measured time of operation so as to prevent that the first motor 2 operates substantially below a pre-established power level or longer than a pre-established time with less than a pre-established rpm value (= rotations per minute). At the same time that the first motor 2 is switched off, the measurement and control device 9 opens valve 13 to enable operation of secondary hydraulic system 12 of the control system 8, 9, 12. The control system 8, 9, 12 further comprises a first pressure sensor 8 for measuring the hydraulic pressure to the clamping device 4, wherein the measurement and control device 9 causes the secondary hydraulic system 12 to be operational depending on the first pressure sensor 8 so as to ensure that the hydraulic pressure previously provided by the first hydraulic system 1, 3 to the clamping device 4 is maintained by the secondary hydraulic system 12 when the first motor 2 of the first hydraulic system 1, 3 is switched off. In a preferential embodiment of the invention as shown in the drawing, the secondary hydraulic system 12 is therefore beneficially arranged with a pressure accumulator 14 for -again caused by the measurement and control device 9- selectively and swiftly providing hydraulic pressure to the clamping device 4 when the hydraulic pressure to the clamping device 4 as measured by pressure sensor 8 drops to too low a value. This restores the hydraulic pressure provided to the clamping device 4 and ensures that the clamping device 4 is maintained in the clamped position.
Another beneficial embodiment is that the secondary hydraulic system 12 comprises a second hydraulic pump driven by a second motor 15 and a second pressure sensor 17, wherein the measurement and control device 9 causes that the second motor 15 becomes operational depending on the second pressure sensor 17 such that said motor 15 is activated when the pressure in the second hydraulic system 12 as measured by the second pressure sensor 17 is below a predetermined pressure value. Before activating the motor 15 valve 18 is opened for a brief period of time and then closed again to enable the smooth transition from standstill to operation of the motor 15. By operation of the second motor 15 the pressure provided by the second hydraulic system 12 is then restored. It is further preferred that the measurement and control device 9 arranges that the second motor 15 is switched off again when the pressure in the second hydraulic system 12 as measured by the second pressure sensor 17 has reached a predetermined maximum value. Unnecessary operation of the second motor 15 is thus avoided.
A further aspect of the invention relates to an embodiment of the vibrator device wherein the first hydraulic system 1, 3 has a first motor 2 of the combustion type and a voltage cell 16 for starting said first motor 2. According to this aspect the control system 8, 9, 12, particularly its measurement and control device 9 is arranged to monitor the load level of the voltage cell 16 and switch on the first motor 2 of the first hydraulic system 1, 3 when said load level of the voltage cell 16 is below a predetermined value.

Claims (8)

1. Trilinrichting voor het afzinken van een werkstuk (10) in de grond door middel van het in trilling brengen van genoemd werkstuk (10), omvattende een trilblok (5) met excentrische gewichten en een kleminrichting (4) gemonteerd op genoemd trilblok (5), waarbij de kleminrichting (4) hydraulisch aangedreven wordt door een eerste hydraulisch systeem (1, 3), welke een eerste hydraulische pomp (6) omvat die aangedreven wordt door een eerste motor (2), met het kenmerk, dat deze een regelsysteem (8, 9, 12) omvat welke bedraad is voor het bewaken van het afgeleverde vermogen en/of de arbeidstijd van de eerste motor (2) en welke is ingericht om de eerste motor (2) af te schakelen afhankelijk van het gemeten afgeleverde vermogen en/of de gemeten arbeidstijd teneinde te voorkomen dat de eerste motor (2) in hoofdzaak onder een vooraf bepaald ver-mogensniveau werkzaam is of langer dan een vooraf bepaalde tijd draait met minder dan een vooraf bepaald toerental.A vibrating device for sinking a workpiece (10) into the ground by vibrating said workpiece (10), comprising a vibrating block (5) with eccentric weights and a clamping device (4) mounted on said vibrating block (5) ), wherein the clamping device (4) is hydraulically driven by a first hydraulic system (1, 3), which comprises a first hydraulic pump (6) driven by a first motor (2), characterized in that it is a control system (8, 9, 12) which is wired for monitoring the delivered power and / or the working time of the first motor (2) and which is adapted to switch off the first motor (2) depending on the measured delivered power and / or the measured working time in order to prevent the first motor (2) from operating substantially below a predetermined power level or running longer than a predetermined time at less than a predetermined speed. 2. Trilinrichting volgens conclusie 1, met het kenmerk, dat het regelsysteem (8, 9, 12) een secundair hydraulisch systeem (12) omvat en een eerste druksensor (8) voor het meten van de hydraulische druk naar de kleminrichting (4), welk secundaire hydraulische systeem (12) werkzaam is afhankelijk van de eerste druksensor (8) teneinde te verzekeren dat de hydraulische druk verschaft door het eerste hydraulische systeem (1, 3) naar de kleminrichting (4) gehandhaafd wordt door het secundaire hydraulische systeem (12) wanneer de eerste motor (2) van het eerste hydraulisch systeem (1, 3) afgeschakeld is.Vibration device according to claim 1, characterized in that the control system (8, 9, 12) comprises a secondary hydraulic system (12) and a first pressure sensor (8) for measuring the hydraulic pressure to the clamping device (4), which secondary hydraulic system (12) is operative depending on the first pressure sensor (8) to ensure that the hydraulic pressure provided by the first hydraulic system (1, 3) to the clamping device (4) is maintained by the secondary hydraulic system (12) ) when the first motor (2) is disconnected from the first hydraulic system (1, 3). 3. Trilinrichting volgens conclusie 2, met het kenmerk, dat het secundaire hydraulisch systeem (12) voorzien is van een klep (13) voor het verschaffen van een verbinding van het secundaire hydraulisch systeem (12) naar de eerste druksensor (8) voor het meten van de hydraulische druk naar de kleminrichting (4), en dat het regelsysteem (8, 9, 12) is ingericht voor het openen van de klep (13) wanneer de eerste motor (2) van het eerste hydraulische systeem (1, 3) afgeschakeld is.Vibration device according to claim 2, characterized in that the secondary hydraulic system (12) is provided with a valve (13) for providing a connection from the secondary hydraulic system (12) to the first pressure sensor (8) for measuring the hydraulic pressure to the clamping device (4), and that the control system (8, 9, 12) is adapted to open the valve (13) when the first motor (2) of the first hydraulic system (1, 3) ) is switched off. 4. Trilinrichting volgens één der voorgaande conclu- sies 1-3, met het kenmerk, dat het regelsysteem (8, 9, 12) een secundair hydraulisch systeem (12) omvat welke is ingericht met een drukaccumulator (14) voor het selectief verschaffen van hydraulische druk naar de kleminrichting (4) voor het handhaven van deze inrichting (4) in de klempositie.Vibrating device according to any one of the preceding claims 1-3, characterized in that the control system (8, 9, 12) comprises a secondary hydraulic system (12) which is equipped with a pressure accumulator (14) for selectively providing hydraulic pressure to the clamping device (4) for maintaining this device (4) in the clamping position. 5. Trilinrichting volgens één der voorgaande conclusies 1-3, met het kenmerk, dat het secundaire hydraulisch systeem (12) een tweede hydraulische pomp omvat die aangedreven wordt door een tweede motor (15) en een tweede druksensor (17) , waarbij de tweede motor (15) werkzaam is afhankelijk van de tweede druksensor (17) zodanig dat genoemde motor (15) geactiveerd wordt wanneer de druk in het secundaire hydraulisch systeem (12) zoals gemeten door de tweede druksensor (17) onder een vooraf bepaalde drukwaarde ligt.A vibrating device according to any one of the preceding claims 1-3, characterized in that the secondary hydraulic system (12) comprises a second hydraulic pump driven by a second motor (15) and a second pressure sensor (17), the second motor (15) is operative depending on the second pressure sensor (17) such that said motor (15) is activated when the pressure in the secondary hydraulic system (12) as measured by the second pressure sensor (17) is below a predetermined pressure value. 6. Trilinrichting volgens conclusie 5, met het kenmerk, dat het secundaire hydraulisch systeem (12) een klep (18) omvat voor de geregelde aanloop van de tweede motor (15) en de geregelde drukopbouw.Vibration device according to claim 5, characterized in that the secondary hydraulic system (12) comprises a valve (18) for the controlled start of the second motor (15) and the controlled pressure build-up. 7. Trilinrichting volgens conclusie 5 of 6, met het kenmerk, dat de tweede motor (15) werkzaam is afhankelijk van de tweede druksensor (17) zodanig dat de tweede motor (15) afgeschakeld wordt, wanneer de druk in het tweede hydraulisch systeem (12) zoals gemeten door de tweede druksensor (17) een vooraf bepaalde maximum waarde heeft bereikt.Vibration device according to claim 5 or 6, characterized in that the second motor (15) is operative depending on the second pressure sensor (17) such that the second motor (15) is switched off when the pressure in the second hydraulic system ( 12) as measured by the second pressure sensor (17) has reached a predetermined maximum value. 8. Trilinrichting volgens één der voorgaande conclusies 1-7, waarbij het eerste hydraulisch systeem (1, 3) een eerste motor (2) van het verbrandingstype bezit en een span-ningscel (16) voor het starten van genoemde eerste motor (2), met het kenmerk, dat het regelsysteem (8, 9, 12) is ingericht voor het bewaken van de ladingsgraad van de spanningscel (16) en het aanschakelen van de eerste motor (2) van het eerste hydraulisch systeem (1, 3) wanneer genoemd laadniveau onder een vooraf bepaalde waarde ligt.A vibrator according to any one of the preceding claims 1-7, wherein the first hydraulic system (1, 3) has a first combustion-type engine (2) and a voltage cell (16) for starting said first engine (2) characterized in that the control system (8, 9, 12) is adapted to monitor the charge rate of the voltage cell (16) and to switch on the first motor (2) of the first hydraulic system (1, 3) when said loading level is below a predetermined value.
NL2010487A 2013-03-20 2013-03-20 Vibrator device for sinking a workpiece into the ground. NL2010487C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2010487A NL2010487C2 (en) 2013-03-20 2013-03-20 Vibrator device for sinking a workpiece into the ground.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2010487 2013-03-20
NL2010487A NL2010487C2 (en) 2013-03-20 2013-03-20 Vibrator device for sinking a workpiece into the ground.

Publications (1)

Publication Number Publication Date
NL2010487C2 true NL2010487C2 (en) 2014-09-24

Family

ID=48366543

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2010487A NL2010487C2 (en) 2013-03-20 2013-03-20 Vibrator device for sinking a workpiece into the ground.

Country Status (1)

Country Link
NL (1) NL2010487C2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1686215A2 (en) * 2005-01-28 2006-08-02 Dieseko Verhuur B.V. Vibrator
US7708499B1 (en) * 2005-01-03 2010-05-04 American Piledriving Equipment, Inc. Clamp systems and methods for pile drivers and extractors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7708499B1 (en) * 2005-01-03 2010-05-04 American Piledriving Equipment, Inc. Clamp systems and methods for pile drivers and extractors
EP1686215A2 (en) * 2005-01-28 2006-08-02 Dieseko Verhuur B.V. Vibrator

Similar Documents

Publication Publication Date Title
KR102353042B1 (en) Shovel
US8209975B2 (en) Arrangement for operating a hydraulic device
RU2016136706A (en) LOADING AND UNLOADING VEHICLE CALCULATING THE SPEED OF THE MOBILE UNIT BY THE SPEED OF THE ENGINE OF THE LIFTING MECHANISM
US10351122B2 (en) Vehicle control apparatus and vehicle control method
JP2015522419A (en) Method for operating a hydraulic press and hydraulic press
CA2638386A1 (en) Control strategy for dc emergency direct current motor for an emergency hydraulic pump
JP5585487B2 (en) Power source device for hybrid construction machinery
US10060095B2 (en) Hybrid work machine
EP2602516A3 (en) Vehicle control device and vehicle control method
US10030361B2 (en) Construction machine
JP2012172521A (en) Power source device for hybrid construction machine
RU2020103044A (en) SYSTEM AND METHOD FOR DETECTING DIMMED AND WORNED CUTTERS
CN103382951B (en) The swivel gear of Work machine and this Work machine
PH12016502289B1 (en) Method for controlling a pump arrangement
EP1602556A3 (en) Power steering apparatus
NL2010487C2 (en) Vibrator device for sinking a workpiece into the ground.
KR101565053B1 (en) Shovel and method for controlling shovel
CA3041003C (en) Fast grid synchronization
JP2016109271A5 (en)
EP3249111A1 (en) Method for controlling flow rate of hydraulic pump of construction machine
US10054075B1 (en) Electric fuel pump uninterrupted power supply
JP2013018067A5 (en)
WO2017177287A3 (en) Method for protecting an electric motor of a device with a motor driven consumer with a continuous capacity control system and choice of such a motor
JP2015010454A5 (en)
JP2008109764A (en) Working machine