BOMCO ZP375 Drilling Rig Spare Parts

1

AG3750010901

42CrMo alloy steel (quenched and tempered), surface nitriding treatment

1. Fatigue wear of the shaft surface due to long-term high-torque transmission; 2. Abrasive wear caused by drilling fluid and dust entering the transmission interface

1. Regularly check the torque load of the transmission system, avoiding overload operation exceeding 110% of the rated value; 2. Strengthen the sealing of the transmission interface, replace the oil seal every 800 working hours, and clean the surface of the part regularly

2

AG3750010902

42CrMo alloy steel (quenched and tempered), surface nitriding treatment

1. Microcracks and fatigue failure caused by alternating load during drilling rig startup and shutdown; 2. Corrosion of the part surface due to high humidity and salt spray in offshore or coastal drilling environments

1. Adopt step-by-step startup and shutdown to reduce alternating load impact; 2. For offshore operations, apply anti-corrosion coating every 6 months and use moisture-absorbing materials in the storage area of the part

3

AG3750010903

42CrMo alloy steel (quenched and tempered), surface nitriding treatment

1. Wear of the spline connection part caused by insufficient lubrication; 2. Impact damage caused by sudden load changes during drilling operations

1. Inject high-pressure lithium-based grease into the spline part every 300 working hours, ensuring full lubrication; 2. Install a load buffer device in the transmission system to absorb sudden load impacts

4

AG3750010904

42CrMo alloy steel (quenched and tempered), surface nitriding treatment

1. Wear of the bearing matching surface caused by abnormal vibration of the drilling rig; 2. Material fatigue caused by long-term operation at high temperature (exceeding 120℃)

1. Regularly check the vibration amplitude of the transmission system, and perform dynamic balance correction if the amplitude exceeds 0.2mm; 2. Monitor the operating temperature of the part, and improve the heat dissipation system if the temperature is too high

5

AG3750010905

42CrMo alloy steel (quenched and tempered), surface nitriding treatment

1. Thread wear and sliding caused by frequent disassembly and assembly during maintenance; 2. Erosion wear caused by drilling fluid containing corrosive media

1. Use professional tools for disassembly and assembly, and avoid violent operation; 2. Choose corrosion-resistant thread sealant, and clean the thread with neutral detergent after disassembly

6

AG3750010906

42CrMo alloy steel (quenched and tempered), surface nitriding treatment

1. Wear of the keyway caused by the relative movement between the part and the matching component; 2. Fatigue failure caused by long-term operation beyond the design service life

1. Check the fit clearance between the part and the matching component regularly, and replace the part if the clearance exceeds 0.15mm; 2. Record the working hours of the part, and replace it before reaching the design service life (2000 working hours)

7

AG3750010907

42CrMo alloy steel (quenched and tempered), surface nitriding treatment

1. Abrasive wear caused by solid particles in the lubricating oil; 2. Corrosion caused by water entering the lubricating system

1. Use a lubricating oil filter with a precision of 5μm, and replace the filter element every 500 working hours; 2. Check the tightness of the lubricating oil tank and pipeline, and repair leaks in time

8

AG3750010908

42CrMo alloy steel (quenched and tempered), surface nitriding treatment

1. Impact damage caused by improper handling during transportation and storage; 2. Wear of the transmission surface caused by misalignment of the matching components

1. Use shock-absorbing packaging during transportation, and place the part horizontally during storage; 2. Calibrate the coaxiality of the matching components before installation, ensuring the misalignment angle ≤0.05°

1

AG3750011101

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Wear of the chrome-plated layer caused by long-term friction with the matching seal ring; 2. Corrosion of the base material caused by the damage of the chrome-plated layer

1. Choose wear-resistant fluorine rubber seal rings, and replace the seal rings every 600 working hours; 2. Check the chrome-plated layer regularly, and re-plate if there are scratches or peeling

2

AG3750011102

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Fatigue cracking caused by high-frequency vibration during drilling operations; 2. Wear caused by insufficient lubrication between the part and the sliding component

1. Install vibration-damping gaskets at the connection part of the part; 2. Apply molybdenum disulfide lubricating paste on the sliding surface, and supplement lubrication every 200 working hours

3

AG3750011103

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Erosion wear caused by high-pressure drilling fluid; 2. Material softening and deformation caused by high-temperature operation

1. Strengthen the protection of the part against drilling fluid, and install a protective cover; 2. Ensure the normal operation of the cooling system, and avoid the part operating at a temperature exceeding 150℃

4

AG375001110400

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Wear of the gear teeth caused by meshing with foreign matter; 2. Fatigue wear of the gear teeth caused by long-term heavy-load transmission

1. Install a filter screen at the inlet of the transmission system to prevent foreign matter from entering; 2. Regularly check the gear meshing status, and adjust the meshing clearance if necessary

5

AG3750011105

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Thread damage caused by over-tightening during installation; 2. Corrosion caused by humid air in the well site

1. Use a torque wrench to tighten according to the specified torque (280N·m); 2. Apply anti-rust oil on the thread after installation, and cover it with a protective cap when not in use

6

AG3750011106

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Wear of the bearing seat caused by the rotation of the bearing; 2. Damage caused by the bearing being stuck due to lack of lubrication

1. Check the bearing clearance regularly, and replace the bearing if the clearance is too large; 2. Inject lubricating oil into the bearing seat every 400 working hours

7

AG3750011107

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Impact damage caused by the drill string being stuck during drilling; 2. Wear of the part surface caused by dust accumulation

1. Operate in strict accordance with the drilling process, avoiding forced lifting of the stuck drill string; 2. Clean the part surface with compressed air every 100 working hours

8

AG3750011108

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Fatigue failure caused by long-term operation beyond the rated speed; 2. Corrosion caused by chemical substances in the drilling fluid

1. Monitor the operating speed of the part, and avoid exceeding the rated speed of 1500r/min; 2. Choose chemical-resistant lubricants and seals, and check the chemical composition of the drilling fluid regularly

9

AG3750011109

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Wear of the sliding surface caused by uneven load distribution; 2. Damage caused by improper storage (moisture, collision)

1. Check the load distribution of the part regularly, and adjust the support position if necessary; 2. Store the part in a dry and ventilated warehouse, and use soft packaging to avoid collision

10

AG3750011110

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Wear of the key caused by the torque transmission between the part and the shaft; 2. Corrosion of the keyway caused by water intrusion

1. Check the key and keyway fit regularly, and replace the key if there is wear; 2. Seal the keyway with sealant after installation to prevent water intrusion

11

AG3750011111

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Abrasive wear caused by sand particles in the well site air; 2. Fatigue cracking caused by alternating cold and heat in the well site environment

1. Install a dust cover on the exposed part of the part; 2. Avoid sudden temperature changes of the part, and preheat it before starting in low-temperature environments

12

AG3750011112

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Wear of the seal groove caused by the movement of the seal ring; 2. Damage caused by the part being hit by hard objects during operation

1. Choose a seal ring with appropriate hardness, and replace the seal ring every 500 working hours; 2. Set up protective barriers around the part to avoid collision with hard objects

13

AG3750011100

35CrMo alloy steel (quenched and tempered), surface chrome plating

1. Wear of the transmission shaft caused by long-term coaxial rotation; 2. Corrosion caused by salt spray in offshore drilling environments

1. Calibrate the coaxiality of the transmission shaft regularly; 2. For offshore operations, use anti-salt spray coating and increase the frequency of anti-rust maintenance

1

AG3750011000

40CrNiMoA alloy steel (quenched and tempered), surface carburizing treatment

1. Wear of the carburized layer caused by heavy-load transmission; 2. Fatigue cracking caused by alternating load

1. Operate within the rated load range, and avoid overload for more than 10 minutes; 2. Conduct non-destructive testing every 1200 working hours to detect fatigue cracks in time

2

AG3750011200

40CrNiMoA alloy steel (quenched and tempered), surface carburizing treatment

1. Wear of the clutch surface caused by frequent engagement and disengagement; 2. Damage caused by oil contamination on the clutch surface

1. Reduce unnecessary frequent engagement and disengagement of the clutch; 2. Keep the clutch surface clean, and replace the oil seal if there is oil leakage

3

AG3750012100

40CrNiMoA alloy steel (quenched and tempered), surface carburizing treatment

1. Wear of the bearing raceway caused by the rolling of the bearing roller; 2. Corrosion caused by moisture entering the bearing cavity

1. Check the bearing status regularly, and replace the bearing if there is abnormal noise; 2. Seal the bearing cavity with waterproof sealant, and check the tightness regularly

1

AG37500113

Q345B alloy structural steel, surface painting

1. Wear of the connecting pin caused by frequent rotation; 2. Corrosion of the surface paint caused by drilling fluid

1. Apply lubricating oil on the connecting pin every 150 working hours; 2. Touch up the paint regularly, and clean the surface with neutral detergent

2

AG37500114

Q345B alloy structural steel, surface painting

1. Bending deformation caused by uneven stress; 2. Wear of the hole caused by the movement of the bolt

1. Check the stress distribution of the part regularly, and adjust the installation position if necessary; 2. Replace the bolt every 600 working hours, and check the hole diameter for wear

3

AG37500115

Q345B alloy structural steel, surface painting

1. Abrasive wear caused by sand and dust in the well site; 2. Corrosion caused by humid environment

1. Install a protective cover on the part; 2. Store the part in a dry environment when not in use, and apply anti-rust oil

4

AG37500116

Q345B alloy structural steel, surface painting

1. Wear of the hinge caused by frequent opening and closing; 2. Damage caused by collision during transportation

1. Apply lubricating grease on the hinge every 200 working hours; 2. Use shock-absorbing packaging during transportation

5

AG37500117

Q345B alloy structural steel, surface painting

1. Fatigue wear caused by long-term vibration; 2. Corrosion caused by chemical substances in the air

1. Install vibration-damping pads on the part; 2. Regularly clean the part surface and apply anti-corrosion paint

6

AG37500118

Q345B alloy structural steel, surface painting

1. Wear of the sliding rail caused by the movement of the component; 2. Damage caused by lack of lubrication

1. Apply lubricating oil on the sliding rail every 300 working hours; 2. Clean the sliding rail surface regularly to remove debris

7

AG37500119

Q345B alloy structural steel, surface painting

1. Bending damage caused by heavy object collision; 2. Corrosion of the weld seam caused by moisture

1. Set up protective guards around the part; 2. Check the weld seam regularly, and repair if there is corrosion

8

AG37500120

Q345B alloy structural steel, surface painting

1. Wear of the locking device caused by frequent use; 2. Damage caused by improper operation during locking

1. Check the locking device regularly, and replace the worn parts; 2. Operate the locking device in strict accordance with the operating instructions

1

AG27500101

2Cr13 stainless steel, seal ring made of fluorine rubber

1. Wear of the valve core caused by high-pressure hydraulic oil scouring; 2. Seal failure caused by hydraulic oil contamination

1. Use hydraulic oil that meets the standard (ISO VG 46), and filter the oil before adding; 2. Check the valve core wear status regularly, and replace the valve core if the wear exceeds 0.05mm

2

AG27500102

2Cr13 stainless steel, seal ring made of fluorine rubber

1. Wear of the hydraulic joint thread caused by frequent disassembly; 2. Corrosion of the joint caused by moisture in the hydraulic oil

1. Use professional tools for disassembly and assembly, and avoid over-tightening; 2. Add a moisture absorber to the hydraulic oil tank, and regularly check the water content of the hydraulic oil

3

AG27500103

2Cr13 stainless steel, seal ring made of fluorine rubber

1. Blockage of the hydraulic oil channel caused by impurities; 2. Wear of the throttle valve caused by long-term oil flow scouring

1. Replace the hydraulic oil filter element every 500 working hours; 2. Regularly clean the oil channel, and check the throttle valve opening for wear

4

AG27500105

2Cr13 stainless steel, seal ring made of fluorine rubber

1. Seal wear caused by high-temperature hydraulic oil; 2. Damage caused by the hydraulic system pressure exceeding the rated value

1. Ensure the normal operation of the hydraulic system cooling device, and avoid oil temperature exceeding 80℃; 2. Install a pressure relief valve, and adjust the pressure to the rated value (25MPa)

5

AG2750010600

2Cr13 stainless steel, seal ring made of fluorine rubber

1. Wear of the piston caused by the movement in the cylinder; 2. Corrosion of the piston surface caused by chemical substances in the hydraulic oil

1. Apply hydraulic oil to the piston surface before installation, and check the cylinder inner wall for scratches; 2. Choose hydraulic oil with good chemical stability, and avoid mixing different types of oil

6

AG27500109

2Cr13 stainless steel, seal ring made of fluorine rubber

1. Wear of the check valve caused by frequent opening and closing; 2. Damage caused by foreign matter entering the check valve

1. Check the check valve regularly, and replace the valve seat if there is wear; 2. Install a fine filter at the inlet of the check valve

7

AG27500111

2Cr13 stainless steel, seal ring made of fluorine rubber

1. Leakage caused by the deformation of the flange gasket; 2. Corrosion of the flange surface caused by drilling fluid

1. Replace the flange gasket every 600 working hours, and choose high-pressure resistant gaskets; 2. Clean the flange surface regularly, and apply anti-corrosion grease

8

AG27500116

2Cr13 stainless steel, seal ring made of fluorine rubber

1. Wear of the hydraulic cylinder rod caused by long-term extension and retraction; 2. Corrosion of the rod surface caused by salt spray in offshore environments

1. Install a dust cover at the end of the hydraulic cylinder to prevent dust and sand from entering; 2. For offshore operations, apply anti-salt spray coating on the rod surface

1

AG00001200

45# carbon steel, surface galvanizing

1. Wear of the washer caused by bolt tightening; 2. Corrosion of the galvanized layer caused by humid environment

1. Choose the appropriate washer size, and tighten the bolt according to the specified torque; 2. Store the washer in a dry environment, and apply anti-rust oil if the galvanized layer is damaged

2

AG000042

45# carbon steel, surface galvanizing

1. Wear of the pin shaft caused by frequent rotation; 2. Damage caused by collision during installation

1. Apply lubricating oil on the pin shaft every 100 working hours; 2. Use a hammer with a soft head during installation to avoid collision

3

AG000043

45# carbon steel, surface galvanizing

1. Bending deformation caused by uneven force; 2. Corrosion caused by drilling fluid splashing

1. Check the stress status of the part regularly, and replace it if there is deformation; 2. Install a protective cover to avoid drilling fluid splashing