GB/T 26949.14-2016 English PDF (GBT26949.14-2016)

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GB/T 26949.14-2016: Industrial trucks -- Verification of stability -- Part 14: Rough-terrain variable-reach trucks
GB/T 26949.14-2016
Industrial trucks--Verification of stability--Part 14. Rough-terrain variable-reach trucks
ICS 53.060
J83
National Standards of People's Republic of China
Industrial vehicle stability verification
Part 14. Off-road telescopic forklift
(ISO 22915-14.2010, IDT)
Released on October 13,.2016
2017-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Foreword
GB/T 26949 "Industrial Vehicle Stability Verification" has or plans to release the following parts.
--- Part 1. General;
---Part 2. Counterbalanced forklift;
--- Part 3. Forward and legged forklifts;
--- Part 4. Pallet stacker, double stacker and picker with a height of not more than 1200mm from the operator;
--- Part 5. Side forklifts (one side);
--- Part 7. Two-way and multi-directional operation of the forklift;
--- Part 8. Additional stability tests for stacking operations under gantry forward and load lift conditions;
---Part 9. Counterbalanced forklifts carrying freight containers of 6m and longer lengths;
--- Part 10. Additional stability tests for stacking operations under lateral load conditions of power units;
--- Part 11. Telescopic forklift;
--- Part 12. Telescopic forklifts carrying freight containers of 6 m or longer in length;
--- Part 13. Off-road forklifts with gantry;
--- Part 14. Off-road telescopic forklift;
--- Part 15. Counterbalanced forklifts with articulated steering;
--- Part 16. Walker vehicles;
--- Part 17. Cargo and personnel carriers;
--- Part 20. Additional stability tests for operation under load bias conditions;
--- Part 21. Picking vehicles with an operator position elevation greater than 1200 mm;
--- Part 22. Three-way stacker forklifts with or without operator position.
This part is the 14th part of GB/T 26949.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part uses the translation method equivalent to ISO 22915-14.2010 "Industrial vehicle stability verification Part 14. Off-road telescopic
Arm forklift.
The documents of our country that have a consistent correspondence with the international documents referenced in this part are as follows.
--- GB/T 26949.1-2012 Industrial vehicle stability verification Part 1. General (ISO 22915-1.2008, IDT)
This part was proposed by the China Machinery Industry Federation.
This part is under the jurisdiction of the National Industrial Vehicle Standardization Technical Committee (SAC/TC332).
This section is responsible for drafting units. Hangcha Group Co., Ltd., Beijing Crane Transportation Machinery Design and Research Institute, National Lifting and Transportation Machinery
Quality Supervision and Inspection Center.
Participated in the drafting of this section. Anhui Heli Co., Ltd., General Engineering Department of Construction Engineering, General Armament Department of Ordnance Technology Research
Institute, Xugong Group Engineering Machinery Co., Ltd. Technology Branch, Guangxi Liugong Machinery Co., Ltd.
The main drafters of this section. Zhang Zhongze, Wang Moyang, Li Kezhong, Zhao Chunhui, Yan Xindong, Xie Ping, Wang Yong, Du Fengpo, Ma Guangrong, Gong Xun.
Industrial vehicle stability verification
Part 14. Off-road telescopic forklift
1 Scope
This part of GB/T 26949 provides for the verification of the stability of off-road telescopic forklift trucks with forks, with or without load handling attachments.
Sexual test method.
This section does not apply to vehicles designed to carry freight containers, lift personnel or suspended cargo.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
ISO 22915-1 Industrial vehicle stability verification Part 1. General (Industrialtrucks-Verificationofstability-
Part 1.General)
3 Terms and definitions
The terms and definitions defined in ISO 22915-1 apply to this document.
4 test conditions
4.1 General
See ISO 22915-1.
4.2 Location of the vehicle on the inclined platform
4.2.1 Load bridge and steering axle
Figure 1 defines the load bridge and steering axle of the vehicle.
Description.
AA---the longitudinal center plane of the vehicle;
BB --- steering axle;
CC --- load bridge.
Note. The load bridge of a 4-wheel steering vehicle is also a steering axle.
Figure 1 Load bridge and steering bridge
4.2.2 Test 1 and Test 2
The vehicle should be placed on a tilting platform with its load-bearing bridge CC parallel to the tilting axis XY of the tilting platform, see Table 1.
4.2.3 Test 3, Test 4 and Test 5
The vehicle should be placed on the inclined platform in a turned state such that the MN line is parallel to the tilt axis XY of the tilting platform, see Table 1.
For vehicles with articulated steering axles, the wheels on the steering axle near the XY side of the tilt axis should be parallel to XY, see Table 1.
The definition of point M is as follows.
a) For vehicles with articulated steering axles. point M is the intersection of the longitudinal center plane AA of the vehicle and the axis of the steering axle.
The projection on the stage, see Table 1;
b) For vehicles with articulated frame. point M is the longitudinal center plane JJ and rear axle of the rear frame when the vehicle is turned to the extreme position
The projection of the intersection of the axes on the inclined platform, see Table 1;
c) For vehicles with axle locking devices. point M is the contact surface of the rear wheel closest to the tilt axis XY on the inclined platform
Center point, see Table 1.
As shown in Table 1, point N is defined as the contact of the load wheel (or stabilizer, if fitted) closest to the tilt axis XY on the inclined platform.
The center point.
4.3 Test load
When conducting tests 1 and 3, the boom with the test load should be in a lifting and extending group that is most detrimental to vehicle stability.
In the state, the fork is parallel to the inclined platform, and this state remains unchanged during the test.
The center of mass of the test load (according to ISO 22915-1) shall be located in the longitudinal center plane of the vehicle, using the lateral slope correction device
Except for this case, it is test 3.
See Table 1.
4.4 lifting height
Carry out the simulation running test, that is, when the test 2 and the test 4, the fork is fully inclined backward, and the measurement is started from the root of the fork, and the upper surface of the fork should be
lie in.
--- For vehicles with a rated lifting capacity of not more than 10t, it should be higher than the inclined platform 300mm;
--- For vehicles with a rated lifting capacity greater than 10t, it should be 500mm higher than the inclined platform.
When conducting test 5, the boom should be at the maximum angle and in the maximum or minimum overhang condition, and the fork should be horizontal.
See Table 1.
4.5 Lateral test procedure
For vehicles with operator-selectable stabilizers and/or axle locks, Test 1 and Test 3 shall be in the stabilizer/
The axle locking device is in working and non-operating state.
For vehicles with operator-selectable stabilizers or frame leveling devices, the maximum lateral slope correction shall be
7% (4°). The correction of the lateral slope can only be carried out by means of an operator-operable stabilizer or a ...