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GB/T 9142-2021: Building construction machinery and equipment - Concrete mixer
Status: Valid GB/T 9142: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9142-2021 | English | 1039 |
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Building construction machinery and equipment - Concrete mixer
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GB/T 9142-2021
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| GB/T 9142-2000 | English | RFQ |
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Concrete mixers
| Obsolete |
GB/T 9142-2000
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| GB/T 9142-1988 | English | RFQ |
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Concrete mixers--Specification
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GB/T 9142-1988
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PDF similar to GB/T 9142-2021
Basic data | Standard ID | GB/T 9142-2021 (GB/T9142-2021) | | Description (Translated English) | Building construction machinery and equipment - Concrete mixer | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | P97 | | Word Count Estimation | 57,580 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 9142-2021: Building construction machinery and equipment - Concrete mixer---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Building construction machinery and equipment - Concrete mixer
ICS 91.220
CCSP97
National Standards of People's Republic of China
Replace GB/T 9142-2000
Building construction machinery and equipment concrete mixer
Released on 2021-10-11
2022-05-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Classification, model and parameters 2
4.1 Classification and code 2
4.2 Main parameters 3
4.3 Model 4
4.4 Basic parameters 4
5 Technical requirements 8
5.1 Overall requirements 8
5.2 Water supply system 9
5.3 Feeding mechanism 10
5.4 Stirring device 10
5.5 Security 10
5.6 Manufacturing and assembly quality requirements 11
6 Test method 12
6.1 Test preparation 12
6.2 Stirring performance test 13
6.3 Determination of the energy consumption of the whole machine and the power of the main mechanism 21
6.4 Determination of cycle time 21
6.5 Determination of the residual rate of cement in the hopper and the intermediate hopper 21
6.6 Determination of overload capacity and dry stirring capacity 21
6.7 Determination of noise 22
6.8 Performance measurement of water supply system 22
6.9 Determination of spilled material, spilled material, slurry overflow, and material overflow rate 23
6.10 Handle operation force measurement 23
6.11 Quality inspection of mixer manufacturing and assembly 23
6.12 Drag test 24
6.13 Appearance quality assessment 24
6.14 Data collation and test report 24
6.15 Reliability test 24
7 Inspection rules 28
7.1 Division of inspection 28
7.2 Factory inspection 28
7.3 Type inspection 28
8 Marking, packaging, transportation and storage 28
8.1 Sign 28
8.2 Packaging 29
8.3 Transportation and storage 29
Appendix A (Normative) Homogeneity Test Record Form 30
Appendix B (Informative) Test Record Form 33
Appendix C (Normative) Appearance Quality Assessment Rules for Mixers 45
Appendix D (Informative) Reliability Test Record Form 47
Appendix E (Normative) Failure Classification 52
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 9142-2000 "Concrete Mixer", compared with GB/T 9142-2000, except for structural adjustment and editorial
In addition to the changes, the main technical changes are as follows.
a) The scope of application of this document has been changed (see Chapter 1);
b) Deleted the nominal capacity, periodic concrete mixer, self-falling concrete mixer, forced concrete mixer, and loading time
Time, centralized discharge port mixer, flat long discharge port mixer, working cycle, failure, basic failure, related failure, non
Related failures, non-basic failures, failure criticality factor, equivalent failures, average working time before the first failure, and average no failures
The definition of working hours and reliability (see the.2000 edition of 3.1, 3.2, 3.3, 3.4, 3.10, 3.12, 3.13, 3.14, 3.15, 3.16,
3.17, 3.18, 3.19, 3.20, 3.21, 3.22, 3.23, 3.24);
c) Added the definition of standard test conditions (see 3.1);
d) The definitions of coarse aggregate, homogeneous concrete, mixing time and discharge time have been changed (see 3.2, 3.3, 3.4, 3.5, 3.5,
3.6, 3.7, 3.11);
e) The rated capacity and feed capacity of the mixer have been changed (see Chapter 4, Chapter 4 of the.2000 edition);
f) The technical requirements for mixing time, residual rate and reasonable viscosity ratio have been changed (see Chapter 5, Chapter 5 of the.2000 edition);
g) The test method is changed (see Chapter 6, Chapter 6 of the.2000 edition);
h) The requirements of the product manual have been changed (see 8.2.3, 8.2.3 of the.2000 edition);
i) Deleted the content of the air content test of the concrete mixture in the appendix (see Appendix A of the.2000 edition);
j) Deleted the content of the dry apparent density test of the saturated surface of gravel and pebbles in the appendix (see Appendix B of the.2000 edition);
k) The homogeneity test record table has been added (see Table A.1).
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed by China Machinery Industry Federation.
This document is under the jurisdiction of the National Construction Machinery and Equipment Standardization Technical Committee (SAC/TC328).
This document was drafted by. Zoomlion Heavy Industry Co., Ltd., National Construction and Urban Construction Machinery Quality Supervision and Inspection Center, Shandong Yuanyou Heavy Industry Branch
Technology Co., Ltd., Fujian South Road Machinery Co., Ltd., Shantui Jianyou Machinery Co., Ltd., Langfang Zhongjian Machinery Co., Ltd., Qingdao Branch
Nile Machinery Equipment Co., Ltd., Sany Heavy Industry Co., Ltd., Zhengzhou Sanhe Hydraulic Machinery Co., Ltd., Hangzhou Jianghe Mechanical and Electrical Equipment Engineering
Limited company.
The main drafters of this document. Guo Shoujun, Mo Jinfeng, Wu Binxing, Fu Zhongxuan, Wang Rui, Li Hui, Cai Chunjie, Jiao Yumin, Tang Ming, Pang Zengling,
Geng Guijun, Zhang Rui, Jiang Zhihui, Wang Liangqiang, Feng Xinhong.
The previous releases of this document and the documents it replaced are as follows.
---GB/T 9142-1988, GB/T 9142-2000;
---This is the second revision.
Building construction machinery and equipment concrete mixer
1 Scope
This document specifies the classification, model and parameters, technical requirements, test methods, inspection rules and signs, packaging, and transportation of concrete mixers.
And storage.
This document is applicable to periodic concrete mixing with a rated capacity of 10000L or less (including 10000L) specified in GB/T 25637.1
Mixer (hereinafter referred to as the mixer), and the mixer used in the concrete mixing station (building).
2 Normative references
The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 3766 General rules and safety requirements for hydraulic transmission systems and their components
GB/T 6003.2 Technical requirements and inspection of test sieves Part 2.Metal perforated plate test sieves
GB/T 7920.4 Concrete machinery terminology
GB/T 7935 General technical conditions for hydraulic components
GB/T 9969 General Rules for the Use of Industrial Products
GB/T 10171 Construction Machinery and Equipment Concrete Mixing Plant (Building)
GB/T 13306 signs
GB/T 18576 Terms and Definitions of Construction Machinery and Equipment
GB/T 25637.1 Construction Machinery and Equipment Concrete Mixer Part 1.Terminology and Commercial Specifications
GB/T 37168 Construction machinery and equipment, concrete and mortar preparation machinery and equipment safety requirements
GB/T 50080 Standard for test method of ordinary concrete mixture performance
GB/T 50081 Standard Test Method for Physical and Mechanical Properties of Concrete
JB/T 3249 Construction machinery guard plate and guard
JB/T 11858 Construction machinery and equipment concrete mixer blades and liners
JB/T 13065 General rules for reliability assessment of construction machinery and equipment
JB/T 13712 Noise measurement methods and limits of construction machinery and equipment
JG/T 5082.1 General technical requirements for welding parts of construction machinery and equipment
JGJ52 Standard for the quality and inspection method of sand and stone for ordinary concrete
JGJ55 Design Specification for Ordinary Concrete Mix Proportion
3 Terms and definitions
GB/T 7920.4, GB/T 10171, GB/T 18576, GB/T 25637.1 and the following terms and definitions apply to this
document.
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