This standard specifies the technical requirements, test methods and inspection rules for hydraulic excavators (hereinafter referred to as excavators). This standard applies to excavators specified in GB 9139.1. Excavators with special requirements can be specified in the economic contract between the supply and demand parties. GB/T 9139.2-1996 Technical requirements for hydraulic excavators GB/T9139.2-1996 Standard download decompression password: www.bzxz.net

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National Standard of the People's Republic of China
GB/T 9139.21996
Hydraulic excavators
Technical specifications
Hydraulic excavators-Technical specifications1996-12-18Published
State Administration of Technical Supervision
1997-08-01Implementation
GB/T 9139.2—t996
Whether GB8419—87 and GB8503—87 in the second referenced standard of this standard are equivalent or equivalent to the international standards issued by 150/TC127
This standard has made the following important modifications to the technical conditions of GB139.2—88 pressure reducing bottle digger: 1. The revised standard only stipulates the index values ​​of qualified products for the air flow loss of hydraulic system, cleanliness of pressure oil, sealing performance of the whole machine, reliability of the whole machine, micro oil consumption rate and noise of the driver, and cancels the index values ​​of top-grade products and first-class products in the original standard. The table 4 of the original standard is also cancelled:
2. The service life inspection item 5.1.2 of the original standard is cancelled, and the item a is placed in the type inspection item, while the reliability inspection is stipulated in the revised standard 3.3.9. The original standard 5.1.1 factory inspection items and the range capability are also merged into the type inspection items. 3. This standard adjusts the index values ​​of these items in the original standard according to the actual situation. 4. The new standard divides the factory inspection and type inspection items into important inspection items, important inspection items and special inspection items according to their importance, and makes corresponding changes to the judgment rules in 5.3 of the standard. This standard is proposed by the Ministry of Construction of the People's Republic of China. This standard is under the jurisdiction of the Beijing Construction Machinery Comprehensive Research Institute, the mechanical equipment and vehicle standard technical inquiry unit of the Ministry of Construction. The drafting unit of this standard is the Ministry of Machinery Engineering New Energy Research Institute. This standard is mainly composed of single-person arrangement
This standard is entrusted to the Ministry of Machinery Tianyang Machinery Research Institute. 1 Scope
National Standard of the People's Republic of China
Hydraullc.excavators-Technical specifications
Hydraullc.excavators-Technical specificationsC/T9139.2-1996
No. 1N131.239
This standard specifies the technical requirements, test methods and inspection rules of hydraulic excavators (hereinafter referred to as excavators). This standard applies to torque control excavators specified in B13.1. Special requirements for excavators can be specified in the contract between the two parties.
2 Referenced standards
The following standards contain relevant provisions, which are referenced in this standard and are the texts of the standards. After the publication of this standard, all the versions shown are valid. All standards are subject to revision. Parties using this standard should consider the possibility of using the latest version of the following standards. GH3766-83 General technical conditions for hydraulic systems GB/758-1996 Hydraulic giant shaker test piece G19-87 Standard machine vibration test method and limit value for machine seat GD802-8? Ten-square machine escort and
9139.1B5 Filter pressure digging and bundling machine classification
JG/T5011.12-92 General night winter parts for painting of some machinery and equipment 183T5035-93 Classification of solid pollution cleanliness of oil for construction machinery and equipment JG515t---99 Safety technical requirements for stability of hydraulic control machine JJ12.3-87 Technical case for welding parts of construction flow machine JI37-86
Liquid oil barrier Extraction method
JJ33-86
Microscope counting method for solid particles in liquid Earth-moving machinery Comfortable operating area and installation of earth-moving machinery 5-87
JB377+.1~-84 Engineering machinery page limit: 1-5 Lemon city product size
3 Requirements
3.1 General requirements
3.1.1 The excavator shall be manufactured in accordance with the drawings and technical documents approved in the prescribed order. 3.1.2 The basic parameters shall comply with the provisions of GB9136.1, 3.1.3 The performance system shall comply with the provisions of H5766. 3.1.4 The dimensions of the reference parts shall comply with the provisions of ZB186011 3.1.5 All components and parts shall be inspected and confirmed to be suitable for installation after confirmation: Purchased parts shall have qualification certificates and be manufactured! It can be tested by extraction and can be assembled only after it is confirmed to be qualified. 3-2 Environmental conditions
National Technical Supervision Bureau approved on December 18, 1996 and implemented on August 1997
CA/T9139.2—1996
3.2.1 The excavator should be able to work normally in an ambient temperature of -15~+40°C. If there are special requirements, the two parties can make provisions in the agreement.
3.2.2 The shovel working device of the excavator should be able to work normally in an environmental temperature of -15~+40°C. The backhoe working device of the excavator should be able to work normally in the range of 1000 to 2000 m.
3.3. Use of energy-saving energy
3.3.1 When the excavator is working, the oil pressure shall not be greater than 0, and the rise shall not be greater than 4GK. 3.3.2 Test loss of the standard pressure system, see Table 1, Table 1
2.51 Deduct the output of the blue pressure >
Dense flow loss
≤8.50 Return oil pressure loss measured under certain load conditions) Inspection: The specified load refers to the standard working output of 2EMP. 3.3.3 The cleanliness of the excavator during use shall not be higher than 19/16 specified in JG/T5035. 3.3.4 After continuous operation for 3 hours, check the sealing parts of the excavator for potential leakage. It shall not exceed two drops within 10 minutes, MPa
3.35 Under the test conditions specified in GB/T7585, the displacement of the hydraulic cylinder of the excavator shall not exceed 200mm/h
3.9.6 The deviation of the belt excavator during direct load driving shall not exceed 7% of the measured distance. 3.3.7 The excavator shall be able to drive, start and brake on the slope specified in GB9139.1. 3.3.B The driving angle shall be 100°, 100°, etc. 32
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