SY 5307-1987 General technical requirements for assembly of petroleum drilling machinery products
Some standard content:
Standard of the Ministry of Petroleum Industry of the People's Republic of China SY5307-87
This standard was confirmed to be valid in 1998, and this is hereby stated. General Technical Conditions for Assembly of Petroleum Drilling and Production Machinery Products
Published on April 18, 1988
Ministry of Petroleum Industry of the People's Republic of China
Implementation on June 1, 1988
Standard of the Ministry of Petroleum Industry of the People's Republic of China General Technical Conditions for Assembly of Petroleum Drilling and Production Machinery Products 1 Subject Internal Wear and Applicable Scope
SY 5307-87
This standard specifies the general requirements for the assembly of petroleum drilling and production machinery. If there are special requirements, they should be indicated in the drawings and related technical documents. This standard applies to the assembly of petroleum drilling and production machinery. 2 Reference standards
GB1804 "Tolerance and fit Limit deviation of dimensions without tolerance" GB44574460 "Mechanical drawing"
GB 3100~3102 "Quantity and unit"
GB 1184 "Shape and position tolerance"
GB1182 "Shape and position tolerance code and its potential" 3 General requirements
3,1 The assembly of mechanical products must comply with the provisions of the drawings and relevant documents, and meet the requirements of this standard. 3.2 The assembled parts must be inspected and qualified by the technical inspection department, and the purchased parts must have a quality certificate. Before assembly, the main matching dimensions of the parts should be reviewed and confirmed to be correct. For mass-produced climbing parts with relatively high matching accuracy, the matching dimensions are allowed to be selected within the tolerance range.
3.3 Before assembly, burrs, chips, oil stains, rust spots, etc. on the surface of all parts must be cleaned. 3.4 The matching and friction surfaces of each part must not be damaged. If there is a slight scratch, it can be repaired only after the technical inspection department agrees without affecting the performance.
3.5 Before assembly, the surfaces of the parts that match each other must be cleaned and coated with clean lubricating oil. 3.6 Before assembling various sealing devices, the contact surfaces must be coated with lubricating oil. Felt rings should be soaked in engine oil. The flash of "O" type sealing rings, "Y" type rubber sealing rings and other various rubber parts should be carefully cleaned, and the sealing surface should not have tears or other defects. It is strictly forbidden to scrape with a scraper or grinding wheel. After assembly, there should be no leakage. When installing the "J" type rubber sealing ring, it should be noted that the outer ring must fit tightly with the hole, and there should be no flanging or spring ring falling off inside. 3. The pipes of the oil pipeline and gas pipeline system should be cleaned by pickling and passivated (other methods can also be used for cleaning). There shall be no blockages such as chips, rust, and grease in the pipes, and no dents, folds, flattening, or cracks are allowed on the pipes of each part. 3.8 After assembly, the pipes of each part of the machine must be clean and unobstructed. The oil pipeline should first be filled with lubricating oil, and then connected to each lubrication point or hydraulic component after the clean lubricating oil flows out of the pipe. After the pipe fittings are connected, they must be firm and tight without leakage. 3.9 When assembling springs, they are not allowed to be stretched or shortened. 3.10 The connection between the box, accumulator, various valve bodies and other parts must be tight, and there must be no oil leakage, water leakage, or air leakage.
After the cotter pin of the slot nut is inserted, the tail must be separated, and the separation angle should be greater than 90°. 3.12 The contact surface between the screw head, nut and the machine body must not be tilted or have a gap. Approved by the Ministry of Petroleum Industry of the People's Republic of China on April 18, 1988, and implemented on June 1, 1988
$Y 5307—87
3.13 The verticality of the center line of the polished stud hole (reamed hole) and the threaded hole to the contact surface of the machine part shall comply with the 8~9 grade accuracy of GB1184 "Shape and Position Tolerance".
3.14 The surface roughness of the reamed hole shall comply with the requirements of the drawing, and the roundness of the hole shall be within the dimensional tolerance range of the hole. 3.15 The fasteners on each machine part must be tightened and not loose. 4 Assembly of rolling bearings
4.1 Before assembly, the defects such as scratches, burrs, rust, spots, etc. on the matching surfaces of the shaft and the bearing seat must be removed. 4.2 When scraping or oilstone is used to repair the matching surface of the bearing, the original processing accuracy requirements must be maintained to ensure that the geometric shape deviation is within the allowable range.
4.3 Before assembly, the anti-rust grease on the bearing must be cleaned. After assembly, the appropriate amount of lubricating oil or grease must be injected according to the drawing.
4.4 When the bearing cover cannot be immediately assembled on the shaft or the bearing seat, the bearing should be covered with clean oil paper or plastic film to prevent the invasion of iron filings, sand, dust and other dirt. After cleaning the shaft, bearing seat and bearing, a layer of clean lubricating oil should be applied to their assembly surface before assembly.
4.5 When assembling the bearing with interference fit, press it into the fitting part with a press, and be careful not to apply pressure to the bearing cage, dust cover and other parts. If you use a hammer to hit, you should pad it with a purple cadmium rod. It is forbidden to hit the bearing ring directly with a hammer. The striking force must be evenly distributed on the seat ring, and it is not allowed to transmit the striking force through the ball or roller. 4.6 When assembling the bearing with interference fit, the bearing can be heated in the oil tank, and the temperature should be below 100°C. The bearings must not be in direct contact with the bottom and wall of the oil tank. It is strictly forbidden to heat the bearings directly with flames. 4.7 The bearings must fit tightly against the shaft chips.
4.8 The joints between the bearing end face, gasket and gland must be smooth. After tightening the screws, the gland should fit evenly against the gasket without any gap. When there is a gap as specified in the figure, the surrounding gap must be even. For bearings that need to adjust the gap, the gap must be adjusted according to the requirements of the drawing during assembly.
4.9 After assembly, when turning the bearing or bearing seat by hand, the rotation must be smooth, flexible and without obstruction. 4.10 When disassembling the bearing, the force should be applied evenly from small to large on the seat ring with interference fit. It is strictly forbidden to use an iron bracelet to directly hit the bearing seat.
4.11 The printed end face of the bearing seat ring should face outward to facilitate identification of the bearing model. 5 Assembly of sliding bearings
5.1 The end face of the fixing pin or screw used to fix the bearing shell or bushing should be buried 2 to 3 mm below the end face of the bearing shell or bushing. 5.2 The bushing with transition fit should be installed by a press. If it is driven in by a hammer, a copper tube should be placed in the middle, and the striking force should be evenly applied to each side.
5.3 After the bushing is pressed into the bearing seat, the filling of the bushing should be checked repeatedly. If it is out of tolerance, it can be repaired by reaming, scraping, grinding, etc. 5.4 The shuttle edge of the oil groove should be blunt and smooth. The gasket at the joint of the bearing shell should be placed on the stabilizing pin, and its inner surface must be 1mⅢ smaller than the bearing shell surface. In any case, the gasket shall not contact the shaft.
5.5 The contact angle between the bearing shell and the journal should be within the range of 90 to 120°C, and the contact spot should not be less than 4 points within the area of 25×25mm. The distance between the journal and the bearing (bushing) should comply with the requirements of the drawing. 5.6 After assembly, the shaft must run freely in the bearing, and its axial and radial clearance must be kept within the tolerance range specified in the drawing.
6 Assembly of keys and splines
6.1 All mating surfaces of the key should be in uniform contact with the keyway. After the flat key is driven in, the two ends are not allowed to be lifted. 2
$Y5307—87
6.2 The mating surface of the spline must not have defects such as scratches and abrasions. If there are minor defects, they should be smoothed with a fine file, fine sandpaper or oilstone. 6.3 After assembly, the spline of the dynamic fit must move freely, and there must be no local uneven tightness. Gears and gear saddles
7.1 The fit between the gear shaft hole and the shaft must meet the requirements of the drawing. For the gear shaft hole with interference fit, the verticality of the gear reference end face and the axis centerline must be checked after hot installation, and the deviation value should meet the requirements of the drawing and technical documents.
了.2 The interface of the gearbox must be smooth. During assembly, it should be cleaned up carefully. After assembly, there should be no oil leakage at the joint surface. The iron filings and dirt in the box must be cleaned up, and the cleanliness should comply with the relevant technical documents.
7.3 If the interface of the gearbox is offset from the center line of the hole or deformed after processing, it is allowed to correct the circular arc surface of the box when installing the sleeve or bearing. The correction value is selected according to Figure 1 and Table 1. Figure 1
Drawer outer diameter D
>120-260
>260~400
7.4 Check the tooth surface contact spots and side clearance according to the drawings and relevant technical documents. The accuracy should comply with the provisions of JB170 "Cylindrical Gear Transmission Tolerance" and JB180 "Bevel Gear Transmission Tolerance". 7.5 The test run of the gearbox should be carried out according to the test run regulations. During the test run, the gears should run smoothly and normally without any impact sound; the noise should not exceed 85dB, the connectors and fasteners should not be loose, the seals should not leak, and the temperature rise should not exceed 40°C. During continuous test run, the lubricating oil temperature in the box should not exceed 80°C. 7.6 The cooling pipeline should be put into tap water for pressure test, and there should be no surge. 7.7 The shifting mechanism and brake mechanism should be flexible, accurate and reliable, and there should be no jamming when the sliding gear shifts. 8 Assembly of sprocket and chain
8.1 Before installing, the chain and sprocket should be cleaned with kerosene and soaked in the specified lubricating oil. All movable parts can rotate freely. 8.2 The sprocket must be firmly installed on the shaft without axial movement. The matching dimensions must meet the requirements of the drawing. 8.3 The center lines of the tooth widths of the active and passive sprockets should coincide. When the center distance is less than 1000mm, the axial deviation should not exceed 2/1000 of the center distance. When the center distance is greater than 1000mm, the maximum axial deviation should not exceed 2mm. The chain and sprocket should be evenly engaged. The sag of the chain should not exceed 2% of the center distance of the sprocket. 8.4 If the chain does not have a special end link, its connection can be pinned and marked on the end ring surface for disassembly. 9 Interference fit || tt || 9.1 Before assembling interference fit parts, the matching dimensions should be checked, and the interference amount should meet the requirements of the drawing. 9.2 When the interference fit parts are pressed in, the parts should not be skewed, and the pressure should be evenly hooked and gradually increased. For interference fit without through holes, vent holes or vent grooves must be made in advance according to the drawing requirements. 3
SY 5307--87
9.3 Before the shaft is pressed into the hole, the burrs, chips, dirt, etc. on the matching surface must be carefully removed, and a layer of clean lubricating oil must be applied. 9.4 During hot press assembly, the dirt in the hole should be quickly removed after the hole is heated to the predetermined size, and then the shaft should be quickly and accurately installed. During ground pressing, the pressure should be uniform, and the heating temperature and the temperature during assembly should meet the process requirements. After assembly, it should be cooled directly. 9.5 The assembly process of important parts should be recorded according to the process requirements. The content includes the drawing number, name, interference amount and pressing force value of the matching parts.
10 Requirements for balancing parts
10,1 The balancing test of rotating parts should be carried out according to the requirements of the drawings and technical documents. Its parts are not allowed to have sticky sand, chips, burrs and oxide scale.
10.2 Fixing of permanent balancing blocks. Welding, screw fixing and other methods shall be adopted according to the requirements of the drawings or actual needs, which must be safe and reliable. The unbalanced amount can be removed by milling, drilling and other methods, but it does not affect the appearance. 11 General calculation of the test
11.1 The pressure test of the gas pipeline and hydraulic pipeline can generally be carried out according to the gas system and hydraulic system, except for those with special requirements in the drawings. The pressure shall be in accordance with the requirements of the drawings and technical documents. Only after the system pressure test is qualified, it is allowed to enter the overall test run. 11.2 The water pressure test work shall comply with the provisions of relevant documents, and the test pressure shall meet the requirements of the drawings. If the drawing does not specify the duration of the test pressure, it must be maintained for 5 minutes, and there shall be no interference during the pressure holding time. During the pressure test, it is strictly forbidden to knock the bearing parts.
11.3 Before the product test (including no-load operation and loaded operation), there should be no obstacles near the machine, and each lubricating part should have sufficient lubricating oil according to the drawings or technical documents. Check whether the safety device is reliable and whether the rotation direction meets the requirements. The electrical parts should be installed and connected correctly without leakage.
11.4 Before the formal test, the motor (or other power machinery) should be turned by hand or started by jogging to make the machine run slowly for one week. The formal test can only be carried out after confirming that there is no obstacle. During the test, the test run regulations must be strictly followed. During the load test, the loading must be carried out in stages, and the maximum load cannot be added at one time. 11,5 During the test run, it is necessary to pay attention to the operation and heating of the service parts. If any abnormal phenomenon is found, it must be stopped immediately for inspection and repair until all faults are eliminated before continuing the test. 11.6 Under normal working conditions, the temperature rise of rolling bearings shall not exceed 40°C (the difference between the operating temperature and the ambient temperature), and its maximum temperature shall not exceed 80°C. The temperature rise of sliding bearings shall not exceed 35°C, and its maximum temperature shall not exceed 70°C. 11.7 When testing high-speed machinery, it is necessary to pay attention to checking the vibration of each part and make necessary measurements and records. High-speed machinery is strictly prohibited from operating within the critical speed range. If it must pass through the critical speed range due to speed regulation, the transition time should be shortened as much as possible.
11.8 High-pressure tests must be carried out in the specified work area and must not be operated at will. The test staff must be in a safe position and observe the pressure test situation.
11.9 The test run should be carried out in accordance with the test run regulations and the provisions of the appraisal outline, and records should be kept. 11.10 After the test is qualified, the water and oil should be drained and the filter should be cleaned. After cleaning, anti-corrosion and anti-rust measures must be taken. Xie Jia explained:
This palm standard is carried out by the Manufacturing Department of the Ministry of Oil Industry. This standard is under the jurisdiction of the Petroleum Exploration and Development Equipment and Materials Standardization Committee. This standard was drafted by the Standardization and Chemical Research Institute of the Petroleum Exploration and Development Scientific Research Institute. : "The main drafter of this standard is Ji Yunliang. 4
This standard continues to be effective after the review in 199
, and the review result has been approved by the State Administration of Petroleum and Chemical Industry.10 After the test is passed, drain the water and oil and clean the filter. After cleaning, anti-corrosion and anti-rust measures must be taken. Xie Jia explained:
This standard is issued by the Manufacturing Department of the Ministry of Petroleum Industry. This standard is under the jurisdiction of the Petroleum Exploration and Development Equipment and Materials Standardization Committee. This standard was drafted by the Standardization and Promotion Institute of the Petroleum Exploration and Development Science Research Institute. : "The main drafter of this standard is Ji Yunliang. 4
This standard continues to be effective after the review in 199
, and the review result has been approved by the State Administration of Petroleum and Chemical Industry.10 After the test is passed, drain the water and oil and clean the filter. After cleaning, anti-corrosion and anti-rust measures must be taken. Xie Jia explained:
This standard is issued by the Manufacturing Department of the Ministry of Petroleum Industry. This standard is under the jurisdiction of the Petroleum Exploration and Development Equipment and Materials Standardization Committee. This standard was drafted by the Standardization and Promotion Institute of the Petroleum Exploration and Development Science Research Institute. : "The main drafter of this standard is Ji Yunliang. 4
This standard continues to be effective after the review in 199bzxZ.net
, and the review result has been approved by the State Administration of Petroleum and Chemical Industry.
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