JB/T 7459.1-1999 This standard is a revision of ZB J61 008-89 "Technical Conditions for Single Hook Shot Blasting Machines". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard specifies the technical requirements, test methods, inspection rules, and marking, packaging, transportation, and storage of single hook shot blasting machines. This standard applies to single hook shot blasting machines. This standard was first issued in March 1989. JB/T 7459.1-1999 Technical Conditions for Single Hook Shot Blasting Machines JB/T7459.1-1999 Standard download decompression password: www.bzxz.net

ICS77.180
Machinery Industry Standard of the People's Republic of China
JB/T7459.1-1999
Single Hook Shot Blasting Machine
Published on 1999-05-14
National Bureau of Machinery Industry
Technical Conditions
Implementation on 2000-01-01
JB/T7459.1—1999
This standard is a revision of ZBJ61008-89 "Technical Conditions for Single Hook Shot Blasting Machine". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard replaces ZBJ61008-89 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Foundry Machinery Standardization. The responsible drafting unit of this standard: Qingdao Foundry Machinery Factory. The main drafters of this standard: Cao Chengxin and Peng Hanqing. This standard was first issued in March 1989.
Machinery Industry Standard of the People's Republic of China
Single Hook Shot Blasting Machine
Technical Conditions
JB/T7459.1-1999
Replaces ZBJ61.00889
This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of single hook shot blasting machines. This standard applies to single hook shot blasting machines (hereinafter referred to as machines). Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 5226.11996 | JB/T53641991
JB/T 5365.1—1991
JB/T 6331.21992
JB/T8356.1—1996
3 Definition
3.1 Shot recovery system 1
Industrial machinery electrical equipment Part 1: General technical conditions Sign
General rules for machine tool inspection Part 1: Geometric accuracy of machine tools under no-load or finishing conditions General technical conditions for casting machinery
Basic parameters of double disc shot blasting machine
Technical conditions for double disc shot blasting machine
Sand treatment and cleaning equipment Painting technical conditions Method for determining the cleanliness of casting machinery Gravimetric method Method for determining the noise of casting machinery Sound pressure level determination Technical conditions for machine tool packaging
System for recovering and processing shots. Including recovery and conveying devices, shot sand separation devices, etc. 3.2 Shot flow rate - the amount of shots passing through per unit time. 4 Technical requirements
4.1 General technical requirements
4.1.1 The machine shall comply with the provisions of this standard and JB/T1644, and shall be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures: 4.1.2 The electrical system of the machine shall comply with the provisions of GB/T5226.1. 4.1.3 The shot blasting machine used by the machine shall comply with the provisions of JB/T3713.1 and JB/T3713.2. 4.1.4 The coating of the machine shall comply with the provisions of JB/T5364. 4.1.5 The machine shall be equipped with a dust removal system or a flange connected to the dust removal system. The selection of the machine ventilation volume shall meet the dust removal requirements. 4.1.6 The machine door, dust removal system, etc. shall have an electrical interlocking device with the shot blasting system. 4.1.7 The machine room, especially the door, should have facilities to prevent projectiles from flying out. 4.1.8 The various signs on the machine should comply with the provisions of GB/T13306, and their directions should be correct and their positions should be eye-catching and appropriate. Approved by the State Bureau of Machinery Industry on May 14, 1999 and implemented on January 1, 2000
JB/T7459.1-1999
4.1.9 The lubrication and dust prevention of each lubricating part of the machine should be good. 4.1.10 The cleanliness limit of each reducer is 0.03% of the lower limit oil weight of the lubricating oil standard. 4.1.11 The machine's wearing parts should be interchangeable and easy to replace. 4.1.12 The reducer box of the hook shall not leak oil. 4.1.13 The straightness of the working plane of the hook travel track shall not exceed 1.5/1000. The misalignment of the T-working surface of the left and right tracks extending from the fork shall not exceed 1mm.
4.1.14 The installation level of the working plane of the hook travel track shall not be greater than 1.5/1000. 4.1.15 The hardness of the T-working surface of the roller of the hook travel trolley shall not be less than 45HRC. 4.1.16 The sand content in the projectile separated by the shot sand separator shall not be greater than 1%, and the content of qualified projectiles in the waste shall not be greater than 1%. 4.1.17 The machine should have measures to prevent the dust removal pipeline from being blocked in structure. 4.1.18 Random accessories and spare parts should be complete. The random technical documents should include the following contents: product instruction manual, product certificate, packing list, spare parts and accessories list and spare parts working drawings, etc.
4.2 Idle operation technical requirements
4.2.1 The operation of the hook system and the self-rotation of the hook should be stable. 4.2.2 The clutch driven by the electromagnet should be flexible and reliable. 4.2.3 The hook reducer shall not have abnormal impact and screaming sounds during operation. 4.2.4 The fork action of the track shall be flexible and reliable. 4.2.5 The operation of each motion mechanism shall be normal.
4.2.6 The functions of each interlocking mechanism shall be reliable.
4.2.7 The electrical control system shall be coordinated, sensitive and reliable. 4.2.8 The temperature rise of the rolling bearing shall not exceed 35℃. 4.2.9 The fasteners and pipe connections shall not be loose. 4.2.10 The machine noise shall not be greater than 95dB(A). 4.3 Technical requirements for load operation
4.3.1 The hook system shall operate smoothly under the designed maximum load. 4.3.2 Each interlocking mechanism shall be sensitive and reliable. 4.3.3 The electrical control system shall be sensitive, coordinated and reliable. 4.3.4 The pill supply system shall not leak pills. The action of the pill supply gate shall be flexible and reliable. 4.3.5 No projectiles should fly out of the machine room, especially at the door. 4.3.6 The room, bucket elevator, and shot sand separator should work under negative pressure. The dust concentration of the dust collector used by the machine shall not exceed 150mg/m3.
4.3.7 Under the given shot blasting power conditions, the workpiece cleaning quality shall meet the roughness requirements of the corresponding shot blasting surface. 5 Test method
5.1 Idle operation test
5.1.1 Start the machine and check it according to the provisions of 4.2 of this standard. 2bzxZ.net
5.1.2 The idle operation test time shall not be less than 2h. 5.2 Load operation test
JB/T7459.1—1999
5.2.1 An idle operation test must be carried out before the machine is operated under load. 5.2.2 Carry out a load test according to the designed maximum load and check it according to the provisions of 4.3 of this standard. 5.3 Shot blasting machine shot blasting amount detection
Start the machine, first adjust the shot supply mesh door so that the shot flow rate reaches the maximum shot supply within the allowable range of the shot blasting machine motor power, and the shot inlet pipe does not overflow the shot, and continue for one minute, and there is still no overflow. Then close the shot supply gate, stop the shot supply, remove the funnel and the shot inlet pipe, and put a container under the shot supply gate. During the test, open the shot supply gate and the stopwatch at the same time, and close the shot supply room door at 30 minutes! : Then weigh the net weight of the shot in the container (converted to kg/min). Use the same method to measure three times, and take the arithmetic mean, which is the shot blasting amount of the shot blasting machine. 5.4 This standard 4.1.14 and 4.1.15 are tested according to the provisions of GB/T17421.1. 5.5 Noise is tested according to the provisions of JB/T6331.2. 5.6 Cleanliness is tested according to the provisions of JB/T5365.1. 5.7 Dust emission concentration detection
a) The measuring instrument is a dust sampler and a full set of accessories. b) The measuring section should be selected at the straight section of the dust removal system outlet as far away as possible from the fan, fan, elbow and other components that disturb the airflow and change the direction of the airflow.
c) The measuring points are on two mutually perpendicular sampling lines passing through the center line of the pipeline on the measuring section. For circular sections with a diameter of less than 1m, 2 measuring points can be taken on each sampling line, see Figure 1. For sections with a diameter greater than 1m or poor airflow distribution, 4 or more measuring points can be taken on each sampling line, see Figure 2. Guoxiang line
Guoxiang hole
Sampling line
Sampling line
Sampling hole
JB/T7459.1—1999
Sampling line
d) Extract air and sample at each measuring point at the same time, and the sampling time is 3 minutes. e) Calculation is shown in formula (1).
Where: C—dust emission concentration, mg/m; Eg
Zg—the sum of the dust weight accumulated on each filter membrane, mg; 29.
The sum of the gas volume collected at each measuring point under standard conditions, m\. 0.866D
5.8 When the manufacturer is unconditional to conduct the final assembly test of the whole machine, it is allowed to be carried out at the user's factory, but the assembled parts must be tested for idling before leaving the factory. 6 Inspection rules
6.1 The machine must be inspected and qualified by the manufacturer's technical inspection department and accompanied by a product quality certificate before leaving the factory. 6.2 The machine must be tested for idling. The number of machines for load operation test shall be sampled at 2% of each batch, but not less than one. If unqualified products are found during random inspection, they shall be re-inspected with double the number. If they are still unqualified, the batch of products shall not be accepted. 6.3 Factory inspection shall be carried out in accordance with 4.1.6, 4.1.17, 4.1.19, 4.1.20, 4.2 and 4.3. 6.4 Type inspection shall be carried out in any of the following situations: a) When new products are identified:
b) When there are major changes in design, process and raw materials; c) When normal production is resumed after suspension for more than one year: d) Once every three years during normal production. 6.5 Type inspection shall be carried out on all items in this standard and relevant items in the referenced standards. 7 Marking, packaging, transportation and storage
7.1 The packaging of all electrical devices of the machine shall comply with the provisions of JB/T8356.1. 7.2 The marking, packaging, transportation and storage of the machine shall comply with the provisions of Chapter 7 of JB/T1644-1991.
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