WO2008116695A1 - Dosimètre de vibrations pour la détermination de contraintes vibratoires - Google Patents

Dosimètre de vibrations pour la détermination de contraintes vibratoires Download PDF

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Publication number
WO2008116695A1
WO2008116695A1 PCT/EP2008/051705 EP2008051705W WO2008116695A1 WO 2008116695 A1 WO2008116695 A1 WO 2008116695A1 EP 2008051705 W EP2008051705 W EP 2008051705W WO 2008116695 A1 WO2008116695 A1 WO 2008116695A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
vibration
load
load value
dosimeter
Prior art date
Application number
PCT/EP2008/051705
Other languages
German (de)
English (en)
Inventor
Ulrich Single
Juergen Lennartz
Markus Roth
Stefan Holst
Andreas Strasser
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP08716822A priority Critical patent/EP2126525A1/fr
Publication of WO2008116695A1 publication Critical patent/WO2008116695A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10—Amplitude; Power
    • G01H3/14—Measuring mean amplitude; Measuring mean power; Measuring time integral of power

Definitions

  • the invention relates to a vibration dosimeter for
  • DE 101 19 252 A1 describes a vibration dosimeter for the personal measurement of characteristic values of the vibration load on the hand, on the arm or on the whole body.
  • the vibration dosimeter includes one beside
  • Vibration-duration measuring device additional sensors, via the other physical variables can be detected, for example, the temperature.
  • the entire facility is held in the hands of the operator; the operator is thus forced to perform with the vibrating dosimeter receiving hand and the tool, which is a relatively uncomfortable handling.
  • the invention has for its object to provide with simple measures a safe to use and easy to handle vibration dosimeter that is able to determine the total vibration load of a person with high reliability in a position.
  • the vibration dosimeter according to the invention for determining the vibration load of persons who are exposed to mechanical vibrations as a result of the operation of a tool comprises a measuring device for determining the operating state
  • Tool under load tool in idle and possibly the operating mode
  • an operating time determining device for determining the effective operating time of the tool
  • a computer device for calculating a current load value from the effective operating time and a tool-specific and possibly also mode-specific vibration characteristic
  • an evaluation device for Comparing the current load value with an allowable load limit
  • a display and / or shutdown device that displays the current status and / or shuts down the tool when the load limit is exceeded.
  • a memory device for storing and reading out older load values is provided according to the invention. This storage device makes it possible to
  • the stored data can be stored via an interface, e.g. cumulative vibration load, vibration load as a function of time, devices used and their mode of operation over time with the help of a computer (PC, PDA or the like) are read out and documented.
  • an interface e.g. cumulative vibration load, vibration load as a function of time, devices used and their mode of operation over time with the help of a computer (PC, PDA or the like) are read out and documented.
  • the permissible working time on the tool can also be calculated as a function of a tool-specific and possibly also a mode-specific vibration characteristic value.
  • the evaluation device compares the effective operating time with the permissible working time, which can be calculated as a function of a permissible vibration characteristic value.
  • the display device represents the comparison result.
  • a weighting of the respective vibrations generated by the tool can also be incorporated, specifically via the tool-specific vibration characteristic value which is predetermined for the respective tool and, if appropriate, for example via the measured values which are measured via the measuring device. if, for example, accelerations are detected by the detection device. In principle, however, it is sufficient to determine only the duration of the current tool operation, possibly still a distinction between idling and operating speed or operation under load of the operating conditions (tool under load, tool in idle and possibly the operating mode) is made. Alternatively or additionally to the determination of the acceleration values, a determination of the rotational speed of the tool or of the power consumption is possible. - A -
  • the storage device is designed as a physically separate component which communicates wirelessly with at least one further component of the vibration dosimeter. So it may be expedient to provide a separate unit with the memory device and other facilities, such as a display device for displaying the current status of the vibration dosimeter.
  • the activation device is located on the tool and the storage device has an identification code to lock and unlock the tool, thereby automatically ensuring that the vibration dosimeter activated personal and the
  • the personal electronic key is present, for example, as a chip card, as RFID (radio frequency identification) or the like. With the unlocking of the tool expediently also the stored load value is read out and as
  • a shutdown device which is designed as a structural unit of the vibration dosimeter and over which the tool is switched off when exceeding the allowable load limit.
  • This shutdown device in particular with the measuring device and the operating time determination device, forms a common structural unit and is located directly on the tool.
  • the vibration load for example, as a daily vibration load in the form of a frequency-weighted, energy-equivalent 8-h vibration total value A (8) (according to Directive 2002/44 / EC) or as a point value (eg according to DIN V
  • the load values can be accumulated or else deducted from a type of user account.
  • FIG. 1 shows a schematic representation of a tool to be handled by an operator, with a two-part vibration dosimeter which serves to determine the vibration load of the operator and a tool-side structural unit and a separate, user-side structural unit comprising a memory device for storing and reading out older load values includes,
  • Fig. 2 is a schematic representation of the two-part vibration dosimeter.
  • the operator 1 holds a hand-held, electrically driven tool 2, which is executed in the embodiment as a percussion drill or hammer drill.
  • a vibration dosimeter 3 is provided, which is designed in two parts and comprises a first structural unit 4 on the tool 2 and a separately executed second structural unit 5, which is carried by the operator 1.
  • the assembly 4 and 5 of the vibration dosimeter can communicate via a wireless interface, which connection need not be continuous, and can
  • the Wireless communication is characterized in the embodiment with the radio waves 6 between the units 4 and 5.
  • the communication can take place in both directions, ie both from the tool-side component 4 to the separate component 5 and in the opposite direction.
  • the assembly 4 includes a measuring device 13, which detects the operating conditions of the tool (operating mode, operation, idle), an operating time detection device 15, which is used to determine the effective service life of the tool, then from using a tool-specific and possibly also a farm-specific Vibration characteristic value in the arithmetic unit 8, also in unit 4, the current load value is calculated.
  • the evaluation device 9 in the structural unit 4 compares the current cumulative load value with limit values and the display device 10 in the structural unit
  • the permissible working time on the tool can also be calculated as a function of a tool-specific and possibly also of a mode-specific vibration characteristic value.
  • the evaluation device 9 compares the effective operating time with the permissible working time, which can be calculated as a function of a permissible vibration characteristic value.
  • the display device 10 represents the comparison result.
  • the cumulative load value is stored on the storage device 11 included in unit 5.
  • the structural unit 5 which is carried by the operator, comprises a memory device 11 for storing or reading out older load values from previous work phases and an identification code which is used to lock and unlock the respectively is provided to be actuated tool.
  • the assembly 4 arranged in or on the tool or in the power cable comprises a measuring device 13, for example a measuring unit for determining the occurring accelerations on the tool, an operating time determining device 15 for determining the effective operating time, a computer device 8 for calculating a current load value from the effective operating time and off a tool-specific and possibly a mode-specific vibration characteristic, an evaluation device 9 for comparing the current load value with a permissible maximum
  • the units 4 and 5 communicate with each other via the radio waves 6.
  • the method for operating the vibration dosimeter is carried out in such a way that with the commissioning of the tool via the activation device 12 in the assembly 5, first an identifier, in particular a personal electronic key is transmitted and the tool is unlocked. At the same time from the memory device 11 is a possibly existing vibration preload in the form of an older
  • Load value read out When the tool is switched on, the load value read out is taken into account as the initial load value and added to the new load values to be determined from the current operation of the tool. In this way, a total load can always be determined, even after interrupting the work on the tool or a change of the tool, with different tool types can be considered by tool-specific vibration characteristics.
  • the tool - specific vibration characteristics are included in the calculation of the current load value, which results from the Calculated vibration characteristic and the effective operating time, which is determined by the operating time determining device 4 and transmitted by this.
  • the current load value is compared taking into account the initial load value with the allowable load limit, wherein in case of exceeding the load limit further consequences are drawn in an indication of the current status in the display device 10 and possibly in a shutdown of the tool via the shutdown device 14 in the assembly 4 consist.
  • the current load value is stored in the memory device 11. At the same time, the tool is locked via the activation device 12.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Radiation (AREA)

Abstract

Dosimètre de vibrations (13) pour déterminer les contraintes vibratoires auxquelles sont soumises des personnes exposées à des vibrations mécaniques dues au fonctionnement d'un outil (2), comprenant un dispositif de mesure (13) pour déterminer le mode de fonctionnement, un dispositif (15) de détermination de la durée de fonctionnement pour déterminer la durée de fonctionnement effective de l'outil, un dispositif de calcul (18) pour calculer la valeur de contrainte cumulative actuelle, un dispositif d'évaluation (9) pour comparer la valeur de contrainte cumulative actuelle à des valeurs limites définies, un dispositif d'affichage (10) et/ou un dispositif de mise hors tension (14) pour afficher l'état actuel et/ou la mise hors tension de l'outil en cas de dépassement de la valeur limite de contrainte et un dispositif mémoire (11) pour enregistrer et lire d'anciennes valeurs de contraintes.
PCT/EP2008/051705 2007-03-26 2008-02-13 Dosimètre de vibrations pour la détermination de contraintes vibratoires WO2008116695A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08716822A EP2126525A1 (fr) 2007-03-26 2008-02-13 Dosimètre de vibrations pour la détermination de contraintes vibratoires

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007014891.9 2007-03-26
DE200710014891 DE102007014891A1 (de) 2007-03-26 2007-03-26 Vibrationsdosimeter zur Ermittlung der Vibrationsbelastung

Publications (1)

Publication Number Publication Date
WO2008116695A1 true WO2008116695A1 (fr) 2008-10-02

Family

ID=39471633

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/051705 WO2008116695A1 (fr) 2007-03-26 2008-02-13 Dosimètre de vibrations pour la détermination de contraintes vibratoires

Country Status (3)

Country Link
EP (1) EP2126525A1 (fr)
DE (1) DE102007014891A1 (fr)
WO (1) WO2008116695A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107942802A (zh) * 2017-12-01 2018-04-20 陈文理 一种冲击式电动工具监控装置
CN111411944A (zh) * 2020-04-27 2020-07-14 无锡量子感知研究所 一种随钻核磁共振测井仪及其工作模式控制方法、系统

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010041059A2 (fr) * 2008-10-07 2010-04-15 Beckwith Ip Limited Dispositif de gestion de vibrations
DE102012021838A1 (de) * 2012-11-08 2014-05-08 Bomag Gmbh Verfahren zum Überwachen einer Vibrationsbelastung
EP2873492A1 (fr) * 2013-11-19 2015-05-20 HILTI Aktiengesellschaft Procédé de commande d'un dosimètre à vibration
DE102015226183A1 (de) 2015-12-21 2017-06-22 Robert Bosch Gmbh Verfahren zu einem Betrieb von zumindest einer Handwerkzeugmaschine
DE102015226796A1 (de) 2015-12-29 2016-12-15 Robert Bosch Gmbh Elektrowerkzeug mit einer Datenschnittstelle
DE102016211729A1 (de) * 2016-06-29 2018-01-04 Robert Bosch Gmbh Verfahren zum Betrieb einer Ultraschallbohrmaschine
DE102017107485A1 (de) * 2017-04-07 2018-10-11 C. & E. Fein Gmbh Oszillierend antreibbares Handwerkzeug und Verfahren zum Betreiben eines solchen
JP7083212B1 (ja) * 2022-02-08 2022-06-10 株式会社フルリール 検出装置、システム、振動工具、方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10156218A1 (de) * 2001-11-15 2003-06-05 Metabowerke Gmbh Handgeführtes oder halbstationäres Elektrowerkzeuggerät
US20050000998A1 (en) 2003-01-27 2005-01-06 Mario Grazioli Hand-held working tool
GB2418252A (en) * 2004-09-16 2006-03-22 Peter Rawlings Measuring the operational time of a tool
DE102004046000A1 (de) * 2004-09-17 2006-03-23 C. & E. Fein Gmbh Elektrowerkzeug

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10119252A1 (de) 2001-04-11 2002-11-21 Klaus-Thomas Schenk Einrichtung zur personengebundenen Messung von Kennwerten der Hand- Arm- und Ganzkörperschwingungsbelastung an Arbeitsplätzen (Schwingungsdosimeter)

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10156218A1 (de) * 2001-11-15 2003-06-05 Metabowerke Gmbh Handgeführtes oder halbstationäres Elektrowerkzeuggerät
US20050000998A1 (en) 2003-01-27 2005-01-06 Mario Grazioli Hand-held working tool
GB2418252A (en) * 2004-09-16 2006-03-22 Peter Rawlings Measuring the operational time of a tool
DE102004046000A1 (de) * 2004-09-17 2006-03-23 C. & E. Fein Gmbh Elektrowerkzeug

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107942802A (zh) * 2017-12-01 2018-04-20 陈文理 一种冲击式电动工具监控装置
CN111411944A (zh) * 2020-04-27 2020-07-14 无锡量子感知研究所 一种随钻核磁共振测井仪及其工作模式控制方法、系统
CN111411944B (zh) * 2020-04-27 2024-04-09 国仪石油技术(无锡)有限公司 一种随钻核磁共振测井仪及其工作模式控制方法、系统

Also Published As

Publication number Publication date
DE102007014891A1 (de) 2008-10-02
EP2126525A1 (fr) 2009-12-02

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