Core Application & Equipment Compatibility
These supplementary parts are exclusively for LANZHOU LS drilling rigs, covering key components like sheave assemblies, pins, fasteners, structural parts, and auxiliary devices. Compliant with GB standards (GB6178-86, GB91-86, etc.), they adapt to high-load hoisting and auxiliary operations. Designed for drilling maintenance engineers and procurement teams, they ensure rig structural integrity and operational safety in harsh drilling environments.
1. Sheave Assemblies
Sheave assemblies are core to the rig’s hoisting system, guiding wire ropes and bearing tension. A drilling site resolved uneven wire rope wear by replacing the fast line sheave assembly (101.51.20.00) and lubricating auxiliary sheaves, restoring stable hoisting and extending wire rope service life.
No. | Part Name | Part No./Model | Material | Main Wear Causes | Prevention Notes |
1 | Fast Line Sheave Assy. | 101.51.20.00 | Alloy steel sheave, GCr15 bearings, anti-corrosion coated | High-speed wire rope friction; bearing lubricant depletion; groove wear | Lubricate bearings weekly with lithium-based grease; inspect groove wear monthly; replace if wear exceeds 1mm |
2 | Sheave Set Assy. | 101.51.40.00 | Alloy steel, integrated bearing seat, wear-resistant | Variable load impact; dust contamination; corrosion | Seal with felt rings; clean surface rust regularly; check assembly alignment quarterly |
3 | Auxiliary Sheave Assy. I | 101.51.70.00 | Alloy steel, lightweight structure, anti-corrosion | Low-load fatigue; wire rope scratch; environmental erosion | Inspect rotation flexibility monthly; lubricate moving parts; replace if noisy during operation |
4 | Auxiliary Sheave Assy. II | 101.51.80.00 | Alloy steel, reinforced structure, wear-resistant | Intermittent load impact; bearing jamming; corrosion | Check bearing clearance quarterly; replace if seized; apply anti-rust oil annually |
2. Pins & Safety Components
These parts secure rig structural connections and ensure operational safety. A site avoided pin detachment by replacing worn safety pins (111.53.00.05) and clips, preventing potential equipment damage during drill pipe handling.
No. | Part Name | Part No./Model | Material | Main Wear Causes | Prevention Notes |
1 | Pin (φ70×380) | 111.53.400.02 | Alloy steel, heat-treated, quenched | Shear stress; friction wear; corrosion | Lubricate surface with anti-seize compound; inspect for shear marks monthly; replace if diameter wears over 0.8mm |
2 | Safety Pin (φ15×90) | 111.53.00.08 | Stainless steel, high-strength | Bending fatigue; rust; impact damage | Check tightness daily; replace if bent; store in dry, sealed container |
3 | Pin (φ100×480) | 111.53.400.03 | Alloy steel, precision-machined | Axial force impact; friction wear; bending deformation | Ensure tight fit with structural parts; inspect straightness quarterly; replace if bent |
4 | Shackle (8.5T) | S-BX8.5-1 | Alloy steel, forged, load-rated | Overload; thread wear; corrosion | Never exceed 8.5T load; inspect threads before use; apply anti-rust oil |
5 | Pin (φ50×105) | 111.52.00.04 | Alloy steel, quenched | Friction wear; shear stress; corrosion | Lubricate with lithium-based grease; replace if worn; avoid over-tightening |
6 | Clip (60×φ30×φ3) | 111.53.00.03 | Spring steel, flexible, zinc-plated | Elastic fatigue; corrosion; deformation | Inspect clamping force weekly; replace if loose; store flat to avoid deformation |
7 | Safety Pin (φ10×75) | 111.53.00.05 | Stainless steel, high-strength | Shear damage; rust; bending fatigue | Bend ends tightly after installation; replace if rusted; avoid reuse after removal |
8 | Pin (φ40×90) | 111.53.380.01 | Alloy steel, precision-machined | Friction wear; corrosion; impact damage | Lubricate surface monthly; inspect for cracks; replace if damaged |
9 | Clip (120×φ60×φ6) | 101.51.00.01 | Spring steel, heavy-duty, zinc-plated | High-load elastic fatigue; corrosion; edge damage | Match with large-diameter pins; inspect monthly; replace if elasticity decreases |
10 | Pin (φ40×90) | 101.51.10.04 | Alloy steel, heat-treated | Friction wear; shear stress; corrosion | Lubricate with anti-seize; inspect for wear monthly; replace if diameter reduces |
11 | Clip (60×φ30×φ3) | 101.51.10.05 | Spring steel, flexible | Elastic fatigue; corrosion; deformation | Apply anti-rust oil; inspect clamping force; replace if deformed |
12 | Pin (φ30×80) | 101.51.10.08 | Alloy steel, precision-machined | Friction wear; corrosion; impact damage | Lubricate surface; inspect monthly; replace if worn or cracked |
3. Fasteners (Bolts, Nuts, Washers, Cotter Pins)
Fasteners ensure structural stability of rig components, complying with GB standards. Regular replacement of worn cotter pins and washers prevents fastener loosening in high-vibration drilling operations, avoiding potential component detachment.
No. | Part Name | Part No./Model | Material | Main Wear Causes | Prevention Notes |
1 | Slotted Nut (M42×3) | GB6178-86(M42×3-8) | Alloy steel, 8-grade, high-strength | Thread wear; slot damage; corrosion | Match with cotter pins; apply anti-seize compound; replace if slots deform |
2 | Cotter Pin (6.3×65) | GB91-86(6.3×65) | Carbon steel, zinc-plated | Bending fatigue; rust; shear damage | Bend both ends after installation; replace if rusted; avoid over-bending |
3 | Slotted Nut (M10) | GB6178-1986(M10-8) | Alloy steel, 8-grade | Thread wear; slot damage; corrosion | Torque to 45N·m; use matching cotter pins; replace if worn |
4 | Bolt (M10×70) | GB/T31.1-1988(M10×70-8.8) | Alloy steel, 8.8-grade, high-strength | Vibration loosening; thread wear; corrosion | Torque to 45N·m; retighten monthly; apply anti-rust oil |
5 | Washer (10) | GB/T97.1-1986(10) | Carbon steel, flat washer, zinc-plated | Compression wear; rust; deformation | Replace with bolts; discard deformed washers; store in dry place |
6 | Cotter Pin (2.5×20) | GB91-86(2.5×20) | Carbon steel, zinc-plated | Shear damage; rust; bending fatigue | Bend ends properly; replace if rusted; avoid reuse |
7 | Eye Bolt in Tail (M30×120) | GB31.1-86(M30×120-8.8) | Alloy steel, 8.8-grade | Tensile stress; vibration loosening; corrosion | Torque to 300N·m; use slotted nuts; inspect threads monthly |
8 | Slotted Nut (M30) | GB6178-86(M30-8) | Alloy steel, 8-grade | Thread wear; slot damage; corrosion | Match with cotter pins; apply anti-seize; replace if slots wear |
9 | Washer (30) | GB93-87(30) | Spring steel, lock washer, zinc-plated | Elastic fatigue; rust; deformation | Replace with nuts; discard flattened washers; inspect monthly |
10 | Cotter Pin (6.3×50) | GB91-86(6.3×50) | Carbon steel, zinc-plated | Bending fatigue; rust; shear damage | Bend ends tightly; replace if rusted; avoid over-bending |
11 | Eye Bolt in Head (M16×35) | GB32.1-1986(M16×35-8) | Alloy steel, 8-grade | Tensile stress; thread wear; corrosion | Torque to 120N·m; use lock washers; apply anti-rust oil |
12 | Washer (16) | GB/T93-1987(16) | Spring steel, lock washer, zinc-plated | Elastic fatigue; rust; deformation | Replace with bolts; discard deformed washers; store sealed |
13 | Eye Bolt in Tail (M24×120) | GB31.1-86(M24×120-8.8) | Alloy steel, 8.8-grade | Tensile stress; vibration loosening; corrosion | Torque to 320N·m; use slotted nuts; retighten quarterly |
14 | Slotted Nut (M24) | GB6178-86(M24-8) | Alloy steel, 8-grade | Thread wear; slot damage; corrosion | Match with cotter pins; apply anti-seize; replace if slots deform |
15 | Washer (24) | GB93-87(24) | Spring steel, lock washer, zinc-plated | Elastic fatigue; rust; deformation | Replace with nuts; discard flattened washers; inspect monthly |
16 | Cotter Pin (5×40) | GB91-86(5×40) | Carbon steel, zinc-plated | Bending fatigue; rust; shear damage | Bend ends properly; replace if rusted; avoid reuse after removal |
17 | Bolt (M20×50) | GB31.1-86(M20×50-8.8) | Alloy steel, 8.8-grade | Vibration loosening; thread wear; corrosion | Torque to 180N·m; retighten monthly; apply anti-rust oil |
18 | Nut (M20) | GB6178-86(M20-8) | Alloy steel, 8-grade | Thread wear; corrosion; deformation | Match with M20 bolts; apply anti-seize; replace if worn |
19 | Washer (20) | GB93-87(20) | Spring steel, lock washer, zinc-plated | Elastic fatigue; rust; deformation | Replace with bolts; discard deformed washers; store dry |
20 | Cotter Pin (4×36) | GB91-86(4×36) | Carbon steel, zinc-plated | Bending fatigue; rust; shear damage | Bend ends tightly; replace if rusted; avoid over-bending |
21 | Bolt (M20×185) | 101.53.150.01 | Alloy steel, 8.8-grade, high-strength | Tensile stress; vibration loosening; corrosion | Torque to 180N·m; apply anti-seize; retighten quarterly |
22 | Slotted Nut (M20) | GB6178-86(M20-8) | Alloy steel, 8-grade | Thread wear; slot damage; corrosion | Match with cotter pins; apply anti-seize; replace if slots wear |
4. Structural & Auxiliary Parts
These parts support rig auxiliary operations and structural stability, including drawbars, pipes, and manual trolleys. They comply with industrial standards, ensuring reliable performance in auxiliary hoisting and equipment positioning.
No. | Part Name | Part No./Model | Material | Main Wear Causes | Prevention Notes |
1 | U-bolt (M42) | 111.53.400.04 | Alloy steel, forged, high-strength | Tensile stress; corrosion; bending deformation | Avoid over-tightening; inspect for cracks quarterly; apply anti-rust paint |
2 | Pressboard (δ50) | 111.53.400.05 | Hardwood, anti-corrosion treated | Compression deformation; moisture decay; impact damage | Avoid prolonged moisture; inspect thickness annually; replace if deformed |
3 | Drawbar | 111.53.411.00 | Alloy steel, heat-treated, reinforced | Tensile fatigue; corrosion; bending deformation | Inspect for cracks quarterly; lubricate connection points; replace if bent |
4 | Oil Tube Stabbing Board | — | Alloy steel, anti-corrosion coated, non-slip | Impact damage; corrosion; surface wear | Install firmly; clean surface regularly; touch up paint on rust spots |
5 | Wire Line Stop Device III | 101.51.145.00 | Alloy steel, rubber buffer, wear-resistant | Wire rope impact; rubber aging; corrosion | Inspect buffer rubber monthly; replace if cracked; lubricate moving parts |
6 | O-matic | 101.53.150.00 | Alloy steel, precision valve, corrosion-resistant | Valve core wear; fluid contamination; corrosion | Clean filter regularly; inspect seal tightness; replace valve core if leaking |
7 | Gin Pole of Crown Block | — | Alloy steel, lightweight structure, anti-corrosion | Wind load impact; corrosion; fatigue crack | Inspect for cracks quarterly; reinforce connections; apply anti-rust oil |
8 | Cross Drawbar | 101.51.13.00 | Alloy steel, heat-treated, reinforced | Torsional stress; corrosion; impact damage | Inspect connection points monthly; lubricate hinges; replace if cracked |
9 | Pipe (φ76×5, L=840) | 101.51.10.06 | Carbon steel, seamless, anti-corrosion coated | Corrosion; impact damage; bending deformation | Inspect for leaks monthly; avoid collision; touch up paint annually |
10 | Pipe (φ76×5, L=970) | 101.51.10.07 | Carbon steel, seamless, anti-corrosion coated | Corrosion; impact damage; fatigue | Support properly; inspect for cracks; apply anti-rust oil |
11 | 5T Manual I-beam Trolley | SG-5 | Alloy steel, wear-resistant wheels, anti-corrosion | Wheel friction; bearing jamming; corrosion | Lubricate wheels weekly; avoid overloading (max 5T); inspect rotation |
12 | O-matic Device | 101.53.151.00 | Alloy steel, integrated control, corrosion-resistant | Component wear; electrical failure; corrosion | Inspect electrical connections monthly; clean surface; replace worn parts |
13 | Safety Chain | 101.53.152.00 | Alloy steel, welded links, anti-corrosion | Weld fatigue; corrosion; overload stretching | Inspect welds weekly; avoid overloading; apply anti-rust paint |
14 | Bearing Seat | 101.51.40.01 | Alloy steel, precision-machined, anti-corrosion | Bearing friction; corrosion; impact damage | Lubricate bearing seat monthly; inspect for cracks; replace if worn |
FAQs
Question | Answer |
How to determine the replacement cycle for sheave assemblies? | Replace fast line sheave assemblies every 8000 working hours or if groove wear exceeds 1mm. Auxiliary sheaves can be replaced every 12000 working hours, but inspect monthly for wear, noise, and bearing flexibility. Follow GB standards for wear limits. |
What are the torque standards for high-strength bolts? | M10 bolts: 45N·m; M16 bolts: 120N·m; M20 bolts: 180N·m; M24 bolts: 320N·m; M30 bolts: 300N·m. Torque strictly per GB/T31.1-1988, retighten quarterly, and apply anti-seize compound to prevent thread damage. |
Procurement Guidance
Genuine supplementary parts are essential for maintaining LANZHOU LS drilling rig performance and compliance with GB standards. Whether for sheave assembly replacement, fastener upgrade, or structural part maintenance, we provide authentic parts matching original specifications. Contact our team for tailored recommendations and professional technical support to minimize downtime and ensure safe, efficient drilling operations.
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Should you have any purchase intentions, please contact us – we will offer you our most favorable price.