GB/T 13751-2019 in English
VALIDEarth-moving machinery—Backhoe loaders—Methods of tests
- Issued on:2019-08-30
- Implemented on:2020-03-01
- File Format:PDF
- Delivery:Within 1 day
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| Standard No: | GB/T 13751-2019 |
| Document status: | VALID |
| Title in English: | Earth-moving machinery—Backhoe loaders—Methods of tests |
| Title in Chinese: | 土方机械 挖掘装载机 试验方法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Within 1 day |
| Issued on: | 2019-08-30 |
| Implemented on: | 2020-03-01 |
| Superseding: |
GB/T 13751-2008 Backhoe loader - Test methods
|
| Chinese Classification: | P97-Architectural engineering construction machinery |
| Professional Classification: | GB-National Standard |
| Related Keywords: | 13751-2019 earthmoving machinery backhoe loader test method
earth-moving machinery backhoe backhoe operation position alarm test content backhoe loaders test methods |
| Related Topics: | excavator en
illegal digging Oriental testing machine earthwork test GBT13751 GB/T 13751-1992 GB/T 13751-2008 GB/T 13751-2019 Excavator structural strength test method Excavator International Excavator high platform acceptance standards Excavator lifting specifications Loader test methods |
《GB/T 13751-2019土方机械 挖掘装载机 试验方法》由TC334（全国土方机械标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
1. Standard Overview and Background
GB/T 13751-2019 Earthmoving Machinery Backhoe Loader Test Method is a national standard for testing the performance and reliability of backhoe loaders, replacing the old standard GB/T 13751-2008. The standard was proposed by the China Machinery Industry Federation and managed by the National Technical Committee for Standardization of Earthmoving Machinery. It is applicable to tire and crawler backhoe loaders.
2. Standard framework comparison table
| Chapter number | Old version content | New version content | Modification points |
|---|---|---|---|
| 2 Normative references | Some referenced documents do not specify version requirements | The latest versions of all referenced documents are specified | New standards such as GB/T 8595 and GB/T 10913 are added |
| 4 Machine performance test | Whole-body vibration test requirements are not included | Whole-body vibration test method is added | The noise measurement method and reliability assessment rules have been modified |
| 5 Reliability test | The test site requirements are not clear | The backhoe operation position alarm test content has been added | The test methods of falling object protection structure and rollover protection structure have been deleted |
3. Interpretation of standard technical requirements
Case study:In the backhoe digging force test, the new version of the standard requires the use of GB/T 13332 for measurement. In actual operation, it is necessary to ensure that the flatness and flatness of the test site meet the requirements to avoid external interference factors affecting the test results.
For example, when measuring the backhoe digging force, soil with uniform density should be selected as the test medium, and the average value of three times should be recorded to reduce the error. At the same time, during the test, attention should be paid to the oil temperature rise and pressure changes of the hydraulic system to ensure that the equipment operates under normal working conditions.
4. Implementation suggestions
- Preparation before the test:Prepare the prototype and test site in strict accordance with the standard requirements. Ensure that the prototype is in the factory state and complete sufficient running-in tests.
- Data recording:During the test, record various parameters in detail, including key indicators such as engine speed and hydraulic oil temperature, and use structured tables for sorting and comparative analysis.
- Reliability assessment:Classify and count the failure conditions of the prototype according to the provisions of GB/T 36693 and JB/T 12463. Focus on fatal failures and major failures, analyze their causes and propose improvement measures.
- Data processing and analysis:Systematically analyze the collected data to generate thermal balance diagrams and reliability assessment reports. For any problems found, timely feedback to the manufacturer for optimization.
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