This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging and storage of mast-type aerial work platforms. This standard applies to various aerial work platforms with mast-type lifting mechanisms. JG/T 5103-1998 Mast-type aerial work platform JG/T5103-1998 Standard download decompression password: www.bzxz.net

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Construction Industry Standard of the People's Republic of China JG/T5103—1998
Mastabilized Aerial Work Platform
Mastaerialworkplatform
Published on June 23, 1998
Implementation on December 1, 1998
Published by the Ministry of Construction of the People's Republic of China
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JG/T5103—1998
This standard refers to the contents of the definition, structural safety factor, control, design basis of the lifting mechanism, system protection and other chapters of the American standard ANSIA92.5—1980 "Boom-type Aerial Work Platform".
This standard also refers to the design basis of the lifting mechanism assembly of the work platform of the American standard ANSIA92.6-1979 "Self-propelled aerial work platform", and controls two parts. With the increasing use of aerial work platforms, their structural types are also increasing year by year. In order to meet the needs of industry development, we have formulated five product standards, namely "Sleeve Cylinder Aerial Work Platform", "Boom Aerial Work Platform", "Scissor Aerial Work Platform", "Column Aerial Work Platform" and "Truss Aerial Work Platform" according to the different structural types of their products on the basis of the original J82-91 "Aerial Work Platform" industry standard, to guide the design, manufacture and use of various products. According to the characteristics of the pillar-type aerial work platform, this standard clearly stipulates the welding of aluminum alloy profiles and the synchronization of the stabilizing columns of the multi-stabilizing column aerial work platform. This standard will replace J82-91 from the date of implementation. Appendix A of this standard is the appendix of the standard.
This standard is proposed by the Standard and Quota Research Institute of the Ministry of Construction. The Beijing Construction Machinery Comprehensive Research Institute is responsible for the technical and basic unit of the mechanical equipment and vehicle standards of the Ministry of Construction.
The drafting units of this standard are: the Building Mechanization Research Institute of China Academy of Building Research, Beijing Xingguang Decoration Crafts Factory, and Hangzhou Saiqi Engineering Machinery Factory. The main drafters of this standard are: Wang Zhenfeng, Liu Zijin, Jing Qizuo, Zhao Hongxue, Ka Yongjiang, and Chen Jianping.
This standard is entrusted to the Building Mechanization Research Institute of China Academy of Building Research for interpretation.
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Construction Industry Standard of the People's Republic of China Mast Aerial Work Platform JG/T5103—1998 Mast Aerial Work Platform
This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging and storage of gun-type aerial work platforms (hereinafter referred to as work platforms). This standard applies to various aerial work platforms with a mast-type lifting mechanism. 2
Cited standards
The clauses contained in the following standards constitute the clauses of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision. Parties using this standard should consider the possibility of using the latest versions of the following standards. GB1497—85
Basic standard for low-voltage electrical appliances
GB3323—-87
Radiography and quality classification of steel fusion welding butt joints GB366987 Aluminum and aluminum alloy welding rods
GB/T51171995 Carbon steel welding rods
GB/T5118—1995 Low alloy steel welding rods
GB14761.5—93 Gasoline vehicle emergency Speed ​​pollutant emission standard GB14761.6-93 Diesel vehicle free acceleration smoke emission standard JG5099-1998 Aerial work machinery safety rules JG/T5100-1998 Scissor-type aerial work platform Approved by the Ministry of Construction of the People's Republic of China on June 23, 1998 Engineering construction standard full text information system
Implementation on December 1, 1998
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3 Definitions
This standard adopts the following definitions.
3.1 Mastaerial work platform mastaerial work platformfom Aerial work platform with a column structure for the lifting mechanism. 3.2 Stationary mastaerial work platform stationary mastaerial work platformfom Aerial work platform with a fixed chassis position. 3.3
Mobile mast aerial work platformmobilemastaerialworkplatfomA mast aerial work platform that is not self-powered and can be easily moved in the workplace with the help of external force.
Self-propelled mast aerial work platformA mast aerial work platform that uses its own power to travel in the workplace or between sites.
The following terms shall comply with the provisions of JG/T5100-1998: aerial work platform, sinking, deflection, platform, stability, free fall, insulation platform, guardrail, maximum platform height, maximum operating height, rated load, outrigger. 4
4.1 Type
Work platforms are divided into the following types according to the form of walking power: a) Fixed
p) Mobile,
Self-propelled.
4.2.1 The model of the work platform is composed of the group type code, characteristic code, main parameter code and update variant code, and its model description is as follows: 2
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4.2.2 Marking example:
Update type code: Chinese Pinyin letter (uppercase print) sequence: Main parameter code: Maximum height of platform, characteristic code: G—Fixed:
Y—Mobile:
Z—Self-propelled:
Group code: GTW--Stable column type aerial work platform. a) The maximum height of the platform is 8m, mobile column aerial work platform: cable column aerial work platform GIWY8JG/T5103) The maximum height of the platform is 8m, the first variant of the fixed column aerial work platform:
column aerial work platform
GIWG8AJG/T5103
4.3 Main parameters and their series
The main parameter of the work platform is the maximum height of the platform. See Table 1 for the main parameter series. Table 1 Main parameter series
Maximum height of platform
5 Technical requirements
General requirements
1, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18m
5.1.1 The working platform shall be prepared in accordance with the product drawings and technical documents approved by the prescribed procedures3
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5.1.2 All standard parts, purchased parts and outsourced parts shall have certificates of conformity, and shall be inspected if necessary. They can only be assembled after they are confirmed to be qualified.
5.1.3 The raw materials used shall be used only with a material guarantee. If substitute materials must be used, their main technical performance shall not be lower than the original design requirements. 5.1.4 All parts and components shall be inspected and assembled only after they are confirmed to be qualified. The main parts and components that have passed the inspection shall be marked.
5.1.5 The welding rods for manual welding shall comply with the provisions of GB/T5117 and GB/T5118. 5.1.6 The friction parts of all moving parts shall be equipped with devices to ensure lubrication. 5.1.7 The connection of parts shall be reliable and shall not be loose. 5.1.8 The wiring and pipelines shall be arranged neatly, firmly and reliably. 5.1.9 The quality of the weld shall comply with the requirements of the second level of GB3323. The outside of the weld shall not be allowed to have defects such as burn-through, undercut, slag inclusion, and weld nodules. Cracks shall not be allowed in the longitudinal and transverse directions of the weld and on the parent metal. The continuous weld shall not be interrupted. The scale-like corrugation shall be formed evenly, and the maximum height difference shall not be greater than 2mm.
The welding of aluminum alloys shall comply with the provisions of GB3669. Working conditions requirements
a) The altitude shall not exceed 1000m
b) The temperature shall be between 20 and +40℃;
c) The wind speed shall not be greater than 13m/s;
d) The working ground shall be solid and flat, and the ground shall not drop during the operation;bzxZ.net
The allowable fluctuation of the power supply voltage shall be ±10%Safety factor
The safety factor shall comply with the provisions of 5.3 of JG/T5100-1998. Electrical system
The electrical system shall comply with the provisions of 5.4 of JG/T5100-1998. 5.5
The platform shall comply with the provisions of 5.5 of JG/T5100-1998. 5.6 Lifting Mechanism
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5.6.1 The guide wheels between each section of the boom should be pressed against the boom in any state to maintain a good transmission and rolling state.
5.6.2 The transmission chain or wire rope shall not be loose, and there shall be no jamming, tangled ropes, etc.
The transmission system shall take measures to prevent the wire rope from slipping out of the groove. 5.6.4 The sections of the boom in the lifting mechanism shall not interfere with each other, and there shall be sufficient overlap length.
5.8.5 A control cable retracting device shall be provided. 5.6.6 In the event of failure of the power, oil circuit, etc., a platform emergency descending device shall be provided. 5.8.7 For multi-column work platforms, the gun columns shall not interfere with each other, and the lifting and lowering shall be synchronized
5.7 Hydraulic system
The hydraulic system shall comply with the provisions of 5.7 of JG/T5100-1998. 5.8 Working performance
Each mechanism shall ensure smooth and accurate operation during operation, and shall not produce creeping, vibration, impact and abnormal increase in driving power. 5.8.2
The mechanism must have the performance of the platform to stay in the air reliably. 5.8.3 The ear noise of the work platform driven by the internal combustion engine shall not be greater than 86dB (A). The environmental noise shall not be greater than 82dB (A).
The ear noise of the electric-driven work platform shall not be greater than 80dB (A), and the environmental noise shall not be greater than 76dB (A).
Emissions of internal combustion engines shall comply with the provisions of GB14761.5 or GB14761.6 5.8.4
Noise
The transmission system shall be stable and shall not have abnormal vibration and oil pump suction caused by cavitation 5.8.5When the platform is at the maximum height, the maximum horizontal lateral force F allowed to act on the platform shall be calculated according to formula (2):
Where: G
Rated load, N
The minimum value of F shall not be less than 250N.
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5.8.6The working platform is placed on a solid horizontal surface. After any position within 300mm of the periphery of the platform is subjected to the concentrated rated load and raised and lowered 10 times, the components shall not have permanent deformation or cracks.
5.8.7 The working platform is placed on a solid horizontal surface. After the platform is lifted and lowered 30 times with a uniform load of 1.33 times the rated load, no permanent deformation or cracks shall occur in any component. 5.8.8 The maximum height error of the platform when unloaded shall not be greater than 1% of the nominal value. 5.8.9 The longitudinal and transverse span errors of the outriggers shall not be greater than 1% of the nominal value. 5.8.10 The width, length and height errors of the overall towing state shall not be greater than 1% of the nominal value.
5.8.11 The lifting and lowering speed shall not be greater than 0.5m/s. 5.8.12 Under the action of the rated load, the platform shall not sink more than 5mm within 20 minutes after the lifting or lowering brake at any position.
5.8.13 Each control device component shall work reliably and accurately. 5.8.14
Each outrigger shall be reliably fixed in the specified position and can be adjusted separately. The position error of the center of gravity of the whole machine in the towing state shall not be greater than 0.5% of the nominal value. 5.8.15
Travel system
The travel system shall comply with the provisions of 5.9 of JG/T5100-1998. 5.10 Control system
The control system shall comply with the provisions of 5.11 of JG/T5100-1998. 5.11 Power system
The power system shall comply with the provisions of 5.12 of JG/T5100-1998. 5.12, Safety protection device
Safety protection device shall comply with the relevant provisions of JG5099. 5.13 Outriggers and stabilizers
Outriggers and stabilizers shall comply with the provisions of 5.10 of JG/T5100-1998. 5.14 Fuel and exhaust system
The fuel and exhaust system shall comply with the provisions of 5.8.4 of JG/T5100-1998. 5.15 Deflection
5.15.1 The deflection of the working platform during the lifting process shall not be greater than 0.5% of the maximum height of the platform 6
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.
5.15.2 Under the action of the rated load, the maximum deflection α of the working platform when the platform is subjected to the maximum lateral force shall not be greater than the value of formula (3): Q-0.025H
Where: H—maximum height of the platform, mm.
5.16 Stability
Stability shall comply with the provisions of Chapter 10 of JG5099-1998. 5.17 Reliability requirements
The reliability assessment time of the working platform is 200h. 5.17.1 The average trouble-free working time of the working platform shall comply with the provisions of Table 2. Table 2 Average trouble-free working time of working platform Maximum height of platform, m
Fixed
Mobile
Self-propelled
The reliability of the working platform shall not be lower than that specified in Table 3. Table 3 Reliability of working platform
Maximum height of platform, m
Reliability
Quality requirements for appearance of the whole machine
The appearance quality of the whole machine shall comply with the provisions of 5.17 of JG/T5100-1998. 5.18.1
The surface of aluminum alloy profiles shall be oxidizedTest method
Test conditions
The test conditions shall comply with the provisions of 6.1 of JG/T5100-1998. Noise measurement
Noise measurement shall be carried out in accordance with the provisions of 6.2 of JG/T5100-1998. 6.3 Emission measurement
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Emission measurement shall be carried out in accordance with the provisions of 6.3 of JG/T5100-1998. 6.4 Measurement of whole machine structural parameters
The working platform is in an unloaded state, and the items specified in Table A1 of Appendix A of the standard are measured. The average value of three measurements is recorded in Table A1. 6.5 Quality parameter measurement
Quality parameter measurement shall be carried out in accordance with the provisions of 6.5 of JG/T5100-1998. 6.6 Measurement of deflection
The measurement of deflection shall be carried out in accordance with the provisions of 6.6 of JG/T5100-1998. 6.7 No-load test
6.7.1 The lifting, lowering, and outrigger retraction and extension of the working platform are performed five times within the maximum working range (10% of the rated load is allowed to be applied). 6.7.2 Parameter measurement is carried out according to the items specified in Table A2, and each item is carried out three times. The average value is taken and the measurement results are recorded in Table A2.
6.8 Rated load test
Level the outriggers, lift the platform under the rated load, lift it to the maximum height, and then lower it to the original position. During the lifting and lowering process, normal start and brake are performed more than twice.
Measure the parameters according to the items specified in Table A3, and each item is carried out three times. The average value is taken and recorded in Table A3.
6.9 Measurement of load-bearing capacity
The load-bearing capacity is measured according to the provisions of 6.9 in JG/T5100-1998. 6.10 Stability test
Stability test shall be carried out in accordance with the provisions of 6.10 in JG/T5100-1998. 6.11 Structural stress measurement
Structural stress measurement shall be carried out in accordance with the provisions of 6.11 in JG/T5100-1998. 6.12 Hydraulic system test
Hydraulic system test shall be carried out in accordance with the provisions of 6.12 in JG/T5100-1998. 6.13 Reliability test
Reliability test shall be carried out in accordance with the provisions of 6.13 in JG/T5100-1998. 8
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6.14 Measurement of platform size and guardrail bearing capacity The measurement of platform size and bearing capacity shall be carried out in accordance with the provisions of 6.14 in JG/T5100-1998.
6.15 Measurement of manual operating force and stroke
The measurement of manual operating force and stroke shall be carried out in accordance with the provisions of 6.15 of JG/T5100-1998.
6.16 Insulation test of electrical system
The insulation test of electrical system shall be carried out in accordance with the provisions of GB1497. Inspection rules
Inspection classification: Inspection is divided into type inspection and factory inspection. 7.2 Type inspection
7.2.1 Type inspection should be carried out in any of the following cases: a) Finalization appraisal of new products or old products for transfer to factory production; after formal production, if there are major changes in structure, materials, and processes that affect product performance
9) During normal production, if the regular or cumulative output exceeds 200 units, periodic inspection should be carried out:
d) When the product is discontinued for more than two years and production is resumed; e) When the factory inspection results are significantly different from the last type inspection; f) When the national quality supervision agency proposes a type inspection requirement. 7.2.2 Type inspection items Table 4
7.3 Factory inspection
For mass-produced operating platforms that have passed technical appraisal, the product quality management department should conduct factory inspections one by one before leaving the factory, and the product can only leave the factory after the inspection is qualified and the certificate of conformity is issued.
7.3.2 Inspection items are shown in Table 4.
7.4 Sampling and determination rules
7.4.1 Sampling method
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A random one-time sampling method is adopted, with a sample size of two and no limit on the sampling base. 7.4.2
Judgment rules
Inspection items
Appearance inspection
Noise measurement
Emission measurement
No-load test
Measurement of structural parameters of the whole machine
Measurement of quality parameters
Platform sinking amount
Rated load test
1Measurement of bearing capacity
Hydraulic system test
Measurement of deflection amount
Safety protection device
Stability test
Reliability test
Measurement of stress of steel structure
Measurement of platform size and bearing capacity of guardrail
Hand control force and Measurement of stroke
Electrical insulation test
Test items
Test method
Intuitive method
Intuitive method
Note: Item 9 is used as the basis for judgment in the final inspection. Type inspection
Factory inspection
If one of the items 7, 8, 9, 11, 12, 13, 14, 15, 16, and 18 in Table 4 fails, it is judged as unqualified. In addition to the above items in Table 4, if two of them fail, it is judged as unqualified. If one item fails, it is allowed to be re-sampled once. If it still fails, 10
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