JB/T 8126.1-1999 JB/T 8126.1-1999 Technical requirements for cooling water pumps for internal combustion engines JB/T8126.1-1999 Standard download decompression password: www.bzxz.net

ICS27.020
Machinery Industry Standard of the People's Republic of China
JB/T8126.1-8126.2—1999
Internal combustion engines-Cooling water pumps
Interual combustion engines-Cooling water pumps1999-09-17 Issued
State Bureau of Machinery Industry
Implementation on 2000-01-01
JB/T8126.1-1999
This standard is a revision of ZBJ90001—8 "Technical provisions for cooling water pumps for internal combustion engines" compared with ZBJ960019. The main technical changes are as follows: The requirements for air pressure heating test have been lowered;
The requirements for installation dimensions of water pumps have been modified.
This standard is part of the series of standards for "internal combustion engine cooling water pump" in B-1999, which includes the following two parts:
JB/8126.2-1999 Technical conditions for cooling water pumps for internal combustion engines JB/8126.21 Performance test method for cooling water pumps for internal combustion engines This standard replaces 196001-89 from the date of implementation. This standard was proposed and managed by the National Technical Committee for Standardization of Internal Combustion Engines. The drafting units of this standard are: Shanghai Internal Combustion Engine Research Institute, Guangxi Dulin Qianjin Auto Parts Factory, Beijing Auto Water Factory, Tianjin Qifei Water Pump Co., Ltd., Wujie Xixin Auto Water Pump Co., Ltd. The main drafters of this standard are: Shi Ai Zang, Chu Meisheng, Li Yong, Liu Runmin, and Fan Liuxing. This standard was first issued in 1979 and revised for the first time in 1989. Scope
Machinery Industry Standard of the People's Republic of China
Cooling water pump for internal combustion engine
Technical conditions
Intcrnaleomhostion cngincs
Cooling water pump
Specials
JR/T 8126.1—1999
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, storage, etc. of internal combustion engine and cooling water pumps. This standard is applicable to centrifugal cooling water pumps with suction requirements for small and medium-power internal combustion engines (hereinafter referred to as cooling water pumps). 2 Cited standards
The provisions contained in the following standards are the provisions of this standard through reference in the standard. When this standard is published: the versions shown are valid. All standards will be put on hold. Parties using non-standard versions should explore the possibility of using the latest versions of the following standards: GB/T6991988
GB:T 103[—1995
GB1 1173-15
GB/T1176-1987
GBT1220—J992
GR/T 134R—1988
GAT1800.3199
GD/T 282B:-1987
GB/T 3077—1988
GB/]6414—1586
GB/ 94391588
GB/ 15115—[994
JBT 5086.11999
JB/T 6718—1993
[B/T 8126.2—1999
QC/T 268—1999
3 Technical requirements
Conditions for structural steel castings
Surface roughness and its tolerance
Casting lead alloys
Technical parts for casting copper alloys
Stainless steel
Spheroidal dense iron castings
Basis of limits and fits Part 3: Numerical tables of standard tolerances and basic deviations Sampling procedures and sampling tables for remote batch inspection (for inspection of continuous batches) Technical conditions for alloy structural steels
Dimensional tolerances for castings
Grey iron castings
Aluminum castings
Technical conditions for water-cooled internal combustion engines
Technical conditions for V-belt pulleys of cooling water pumps for internal combustion engines
Performance test method for cold stamped water pumps for internal combustion engines
Extreme deviation of dimensions without tolerances for cold stamped parts of automobiles 3.1 Water pump products and parts shall comply with the provisions of this standard and be manufactured in accordance with product drawings and technical documents approved through the prescribed procedures. 3.2 Water pump assembly samples or related technical documents shall specify the requirements for product rotation, micro-display and lifting performance indicators. 3.3 The position of the screw hole for water pump installation shall be centered at 4mm@. Approved by the State Bureau of Machinery Industry [999-09-17 2
2000-01-01 Implementation
FE/T8126.1-1999
3.4 ​​The half of the water pump installed on the main engine and the plane of the fan installed on the water pump shall have a deviation of ±1m3.5 The parallelism between the half of the water pump installed on the main engine and the half of the fan installed on the water pump shall not exceed .2mm within a 100mm net circle: 3.6 Sealing test method! You can choose one of the following methods) 3.6.! The water pump shall be 100% underwater sealed according to the following regulations, and there shall be no contact phenomenon during the reverse test. a) The water pump shall be rotated according to the calibration specified in the product drawing, and the reverse rotation shall be 3mm; 5) The water pump in the water inlet of the seal shall be sealed, and the static pressure at the reverse water inlet shall be 50kPa; the water pump in the water channel of the water seal shall be sealed, and the pressure shall be increased to .5 times of the calibration pressure. 3.6.2 The pump is filled with air at a pressure of (30±5) Pa for 3 minutes. The pressure is 10% when the pressure is balanced. The leakage is greater than 10 mL/min.
3.7 The assembled pump shall not be stuck when turned by hand. There shall be no abnormal noise when the pump is turned according to the regulations. 3.8 Water castings
3.8.1 The parts shall not be cracked, loose, or have any micro-limits. Obvious sand sticking and other depressions, non-T flow surface is allowed to have deep changes in the vertical diameter of 1m less than 3mm, the interval is too large to make more than 20m, the number of plates is less than 6 depressions 3.8.1 The dimensional tolerance of the cast parts:
a The mold is made according to the current selection of CTII in GR/T6414: 6) The mold must be made according to the provisions of CT9 in (January/6114; the mold, low-pressure poetry casting G day T6414 T8. 3, .3 The dimensional tolerance of the round is connected to CD 3.H.4 Impeller dimension tolerances are in accordance with QC268, 3.8.5 Impeller surface roughness k is 100μm 3.8.6 V pulley technical requirements are in accordance with JB 618. 3.9 Dimensional tolerances of key parts
3.9. Dimensional tolerances of bearing holes and wheel rail holes meet the requirements of GB/T1800.3: 3.9.2 Shaft main bearing 3.10 The roughness of the parts to be added should meet the requirements of GR/T[031]. 3.10.1 The R value of the shaft and the wheel hole is 1.6μm, and the R value of the non-shaped hole is 3.2. 3.10.2 The surface dimension of the pump shaft should be 0.8μm. 3.10.3 The sealing rate of the water seal should meet the requirements of GR/T5086.1. 3.11 The anti- 3.11.1 The bottom of the water pump should be protected from rust, siltation and stains. 3.11.2 The water system should be cleaned before installation. 3.11.3 The surface of the water system should be smooth and there should be no cracks, peeling, bubbles, accumulation and other defects. 3.12 The mechanical bearing should be higher than or equal to G grade. 3.13 The sealing performance and service life of the water jet should meet the requirements of JB.T50B6.1. 3.14 Materials
3.14.1 The key parts shall be made of materials with performance not lower than that in Table 1. 3
Material name
Shuidong light body
Shuinai belt gun
Shuidong axis
Dinghai wheel
Shuijujiang or toothed wheel
Shuijingzao
Shuirong wheel assembly
JB/T8126.1-1999
ZLIUI (ZL.1)
ZL104【ZL-10】
ZQSnw-1
Q235-A
10 (-)
3115t1
Note. In addition to the above-mentioned materials, other materials that meet the requirements of energy saving and energy saving may also be used: 3.14. 2
Casting aluminum alloys shall comply with the provisions of B/T1173 3.14.3Die-casting aluminum alloys shall comply with the provisions of GB/T15115 Test method
Test method shall be as specified in IR/T8126.2: 5 Inspection rules
5.1 The manufacturer must carry out random tests in accordance with the prescribed procedures and methods in the performance test. Label
GB1173
GB/15115
GrB/T 9439
GB/T[22D
GB/T3077
GIT 699
GBT9439
GHT 699
GB.T 1348
GN/T 699
GB/T9439
GB;T (99
GR/T 1173
GB/T69y
GB/T9439
5.2 Each pump must be inspected by the manufacturer's inspection department and the product certificate must be issued before it can enter and leave the factory. 5.3 The quality inspection of the product by the ordering unit shall be carried out in accordance with the provisions of GB/2828 or agreed upon by the supply and demand parties. 6 Marking, transportation and storage
6.1 Each pump should be marked with:
a) Factory logo or trademark:
b) Product model or serial number
JB/I8126.1-1999
The position, size and size of the mark shall be in accordance with the product drawing and agreed upon with the ordering unit. 6.2 Each pump shall be accompanied by a production station quality certificate signed by the inspector! Should indicate: a) manufacturer name and trademark:
b) product number, product name;
c) standard number:
d) inspection date. bzxz.net
6.3 Product packaging is determined according to user requirements. When packaging in packaging boxes, the packaging box surface should indicate: a) manufacturer name and place of origin:
1) product name and plastic number;
label number:
packing date, gross and number:
e) receiving unit and address:
mark "light loading", "light unloading" and other words: g) packaging box size (length × width × height), mm. 6.4 The packaging should also have supporting facilities, and ensure that the product will not rust or be damaged during normal transportation. 6.5 The water tank should be stored in a ventilated and dry warehouse. Under normal circumstances, it is manufactured from the time of export! It should be guaranteed that there will be no rust within 12 hours.
6.6 The warranty period is 2000 hours within 12 months from the date of purchase if the door is used properly. If it is caused by quality problems in the production, the production supervisor shall be responsible for warranty, replacement and refund.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.