GB/Z 26139-2010Earth-moving machinery - Guidelines for assessment of exposure to whole-body vibration of ride-on machines - Use of harmonized data measured by international institutes, organizations and manufacturers (English PDF)

Foreword

This technical document is equivalent to the use of ISO /T R25398..2006 "Earth-moving machinery riding machine exposure to the vibration of the whole body evaluation Guide International Association, organizations and manufacturers to determine the application of coordination data "(in English).

This guideline is equivalent to translation ISO /T R25398..2006.

For ease of use, the following technical amendments to the guidance document have been made.

--- "This Technical Document" be replaced by "This Guidance Technical Document";

--- With the decimal point "." Instead of as a decimal point ",";

--- Removed the foreword of international standards;

--- With our country has adopted the international standard standards, corresponding to replace ISO /T R25398..2006 International Standards cited;

--- For the Appendix A and Appendix B of the table, an increase of the title.

Appendix A, Appendix B, Appendix C, Appendix D, Appendix E and Appendix F of this guidance document are informative appendices.

Introduction

This guidance document provides information on how to assess the environmental exposure of earthmoving machines to vibration. This assessment method is based Vibration emission measured under real operating conditions. It should be especially noted that the vibration emission values are affected by many different parameters. These parameters From.

--- Drivers (such as. training level, behavior, mode, pressure);

--- The place of operation (such as. organization, preparation, environment, climate, materials);

--- Machinery (such as. type, seat and suspension system quality, accessories, equipment, status).

Therefore, it is impossible to obtain a precise exposure value. The values given in this guidance document should be used with care because they are only Measured by a limited number of drivers under specified operating conditions and machine type conditions.

The actual operating conditions of a particular mechanical driver may vary widely and may result in different vibrations. On the other hand, in the literature The values found from the real job status may be found only for the specific job status and when the measurements were correct. This instructional technical document Users should understand that vibration exposure depends not only on the machinery used, but also on a large part of the driver, homework location and other factors. To The actual assessment of the amount of vibration, these factors also need to be taken into account.

Appendix A lists the GB/T 8498 contains a list of the typical types of mechanical conditions. This list may not be complete, but its generation Most of the table shows the actual working conditions.

Correct tuning and maintenance of machinery, smooth handling of machinery, and consistent topographical conditions reduce body vibration. Appendix E refers to Guidelines can help earthmoving users reduce their overall body vibration levels.

The daily vibration exposure to be assessed depends on the amount of surface vibration that comes in contact with the whole body and the daily total of an employee in contact with the vibration duration.

The same type of machinery vibration levels are assumed to be the same. If the machine is equipped with a vibration reduction function, a lower vibration should be used Level. To determine the level of vibration reduction of a mechanical vibration reduction function, appropriate vibration measurement methods should be developed to determine the vibration drop Low volume. Appendix F provides guidelines for vibration measurement.

1 Scope

This Guidance Document is intended for those who are required to identify, evaluate and provide documentary proof of ride-on machines (per GB/T 8498) daily Personnel exposed to vibration, such as employers, state agencies, and earthmoving machinery manufacturers, provide guidelines. At the same time the guidance of technical documents as well The machine provides guidelines for reducing the level of vibration in the machine to reduce vibration levels and to determine the mode of vibration reduction. It can help to develop Documentation of a particular earthmoving machine in a typical work condition.

This Guidance Document provides information on how to determine the Daily Vibration Exposure according to GB/T 13441.1 and EN 14253.:2003 A (8) guidelines. It also provides an easy way to determine daily vibration exposure through a table with daily exposure Grid as the equivalent vibrational value and the associated exposure duration. Even in the case of multiple exposures on the same day, both methods are Can use.

This guidance document provides a method for calculating the exposure using the reported emission values. For machines equipped with GB/T 8419 seats The same applies.

Note: Other information is given in EN 474 series and EN 500 series.

If you do not have the appropriate data to represent the vibration under specific operating conditions or if the result of the calculation can not be determined whether the vibration is violent Dew or exposure action values require worksite measurements.

It is important that the vibration values used in the exposure assessment are representative of the particular use of the machine.

This technical note does not deal with the assessment of impact exposure.

NOTE: This guidance document, which is used to identify, assess and document the daily total body vibration exposure of a traveling earthmoving machine, also includes the European Health Machine Directive (Vibration).2002/44/EC.

2 Normative references

The following documents contain provisions which, through reference in this Guidance Document, become the provisions of this Guidance Note document. All dated Reference documents, all subsequent amendments (not including errata content), or revisions do not apply to this guidance document, however, drums Recipients of the agreement based on this guidance document are encouraged to study whether the latest versions of these documents are applicable. All undated references The latest version of this document applies to this guidance document.

GB/T 8419 Earth-moving machinery driver's seat vibration laboratory evaluation (GB/T 8419-2007, ISO 7096.:2000, IDT)

GB/T 8498 earthmoving machinery basic type identification, terms and definitions (GB/T 8498-2008, ISO 6165.:2006, IDT)

GB/T 13441.1 Mechanical vibration and shock - Exposure to whole body vibration - Part 1. General requirements (GB/T 13441.1-2007, ISO 2631-1.:1997, IDT)

EN 14253.:2003 Mechanical Vibration Occupational Exposure to Whole Body Vibration Measurement and Evaluation of Health Hazards Operational Guidelines (Mechanical vibration-Measurement and calculation of occupationalexposureto whole-body vibrationwithreferencetohealth-Practicalguidance)

3 Terms and definitions

GB/T 13441.1 and GB/T 8498 established and the following terms and definitions apply to the guidance of technical documents.