JB/T 9840.5-1998 This standard is a revision of ZB T66 003-89 "Technical conditions for air tanks of tractor trailer air brake systems". This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage requirements for air tanks of tractor trailer air brake systems. This standard applies to air tanks of tractor trailer air brake systems. JB/T 9840.5-1998 Technical conditions for air tanks of tractor trailer air brake systems JB/T9840.5-1998 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/r9840.5-1998
Reservoir for pncuntatic braking system of tractor trailer-Technical reguirement1998-09-30 Issued
National Machinery Industry Bureau
1998-12-01 Implementation
IB.T9840.5—1998
This standard is July 166001—89 tractor trailer pncuntatic braking system! Technical conditions and retroactive connection
This standard is implemented from the time of BT66003-89 This standard is promoted by the National Technical Committee for Control of Machinery Standards. This standard is initiated by: Xiaoyang Machinery Research Institute: This standard promotes three main founders: Ma Kong,
Machinery Industry Standard of the People's Republic of China
Technical conditions
Keservojr for pneumatic brakingsystem of tractor trailer Teelhmieal requircmentJB/T9840.S—1998
Generation sample 2BT66003-89
The standard stipulates the installation technical requirements, test piece method, inspection rules, marking, packaging, transportation and operation of the pneumatic braking system of tractor trailer.
This standard applies to the air brake system of tractor trailers. 2 Reference standards bzxz.net
The provisions contained in the following standards constitute the provisions of the standard by reference in this standard. When the version is not marked, the version shown is valid: All standards will be subscribed. The parties using this standard should consider the following special sources G283887
Batch adjustment process and selection table (applicable to the standard batch inspection) (1338...92 Mechanical and electrical product packaging and use technology system JB/T56T3-9 1
3 Technical requirements
General technical requirements for cold paint of tractors and machinery 3.1 The gas tank should be manufactured according to the product drawings and technical specifications specified in the regulations. 3.2 The surface of the gas tank should be clean and flat, with no defects such as burrs, cracks and other defects. The surface should be uniform and the paint peeling should comply with the provisions of TQ-2-2 of JB/T5673. 3.3 The working temperature of the gas is between -30~70℃. 3.4 The nominal pressure of the gas is 800kPa.
3.5 Energy
3. 5. 1 Leakage
The gas shall not leak when the gas is filled with 1.5 times the nominal pressure, depth, m: 3. 5. 2. The gas belt is subjected to a static test of 1mm under pressure: there is no crack, and the daily water treatment cannot exceed 3. The total nominal volume of the gas storage network can be at least 10 of the gas supply capacity. 3.7 The gas tank must have a manual push-release valve 3.8 The gas relay must have a gas joint or a special sensor to indicate the gas storage tank E force 39 Please use the special remote control to discharge the large-volume air pressure by the machine. The one-way valve of the ground transmission gas fault must be electrically installed, and the gas storage and gas source are integrated. The national machinery industry ticket approved on September 30, 1998 and implemented on February 0, 1998
3.11 Warranty period
JB/T9840.5-1598
If the user complies with the installation, maintenance and use regulations specified in the instruction manual of the tractor trailer air brake device, the warranty period is the same as the warranty period of the main engine.
In the warranty period During the service life, if the gas storage capacity fails or cannot be used normally due to the loss of the system, the manufacturer shall be responsible for the replacement and refund.
4 Test method
4.1 Sealing test
4.1.1 Test equipment
The schematic diagram of the test equipment is shown in Figure 1
■ Gas source, 2 Pressure regulator: 3- Stop valve, 4-Standard force gauge: 5-Gas storage end: 6-Exhaust valve: 7-Shut-off valve [Schematic diagram of sealing test device
4. 1.2 Test conditions
4.1.2.1 The accuracy of the standard pressure gauge shall not be less than 0.4, and its range shall not be greater than 2.5 times the test pressure. 4.1.2.2 The test pressure shall not be less than 1.5 times the nominal pressure of the gas storage. 4.1.2.3 The sealing device shall not be allowed to leak.
4.1.3 Fill the gas storage with compressed air, and at 1.5 times the nominal pressure, close the stop net 3, 7 and discharge the attached 6: after the sealing pressure is guaranteed to meet the requirements of 3.51. 4.2 Pressure resistance
4.2.1 Test device
The small design of the test device must be 2.
1-Liquid recording: 2-Use currency reading: 3-End week: 4-Clean sheet: 5-Will be described: 6-Discharge time header! 7—Schematic diagram of multi-bed performance test device
4.2.2 Test conditions
JB/T9840.5-[998
4.2.2.1 The accuracy of the standard F pressure gauge shall not be lower than grade a4, and its upper range limit shall not be greater than 16MPa4.2.2.2 The test pressure shall be less than 5 times the nominal pressure of the gas: 4.2.2.3 The sealing device shall not allow leakage
4.2.3 Pour hydraulic oil into the gas storage medium, and under 5 times the nominal pressure, close the stop agent 3,7 and the sealing effect network joint 6. After maintaining the pressure for 10min, its performance requirements shall meet the requirements of 3.5.2. 5 Inspection plan
,.—Outgoing inspection
Each gas pedal must be inspected and qualified by the quality inspection department of the manufacturer and operator before it can be shipped out. The outgoing inspection is in accordance with the provisions of the daily safety table. Ling 1
Public pressure
Guangdong control inspection items
5.2 Type inspection
5.2.1 Inspection items
Sealing resistance
5.2.2 Batch rules and sampling plan
The gas storage should be inspected in batches. Each inspection batch N-26, 50 units. One inspection batch can be composed of one production batch that has passed the factory inspection, or it can be composed of ten production batches. If the number of products in a single production batch is large, the annual batch can also be divided into more than one inspection batch. b) According to (B2828 regulations, the normal sampling plan is not used in the standard. It is stipulated that the special inspection level S-1 is used. The sample is too small-2: the qualified quality level AQL=6.5. The sampling method agreed upon by the supply and demand parties can be used for inspection. S.2.3 Judgment rules
After the test items are tested according to the sample plan, if the qualified quality level is not reached, the batch of products is unqualified; if the consecutive inspections are unqualified, additional samples should be taken for testing, and the whole batch will be restored to normal after inspection: 6 Marking, packaging, transportation and storage
6.1 The main content of the product marking is as follows:
) system is! b) Product name:
d) Product model or mark:
d) Manufacturing date [or number] Product number: 6.2 Gas storage packaging must comply with the provisions of G/13384, and the following technical documents must be provided: a) Product instruction manual:
h) Product certificate:
3) Guarantee certificate 15;
Packing list.
JB 9840.51998
6.3 It should be ensured that the gas storage does not accumulate and lose the tip within three days of delivery. 4 The gas storage chain should be stored in a ventilated and well-ventilated place, and it should be ensured that the product will not fail due to poor packaging within 1 year from the date of delivery, etc. Special requirements shall be implemented according to the agreement between the supply and demand parties:
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