Product Description
Product Description
The CHINAMFG block consists of CHINAMFG basement, fast-line sheave, dead-line sheave, main sheave, sand-line sheave, drilling line protector and sheaves for hydraulic and air winch, bumper wood for the Crown-O-Matic and guardrail. It’s designed with closed type and open type. The traveling system is divided into 7×6, 6×5, 5×4, and 4×3, which fit to Φ7/8″~Φ1 1/2″ drilling lines. The sheave groove conforms to the requirements of API RP 9B. The sheave groove surface is processed with a quenching treatment. The bearing adopts centralized lubrication for convenient operation.
| Crown Block Sheave Technical Parameters | ||||
| Model | TC225 | TC315 | TC450 | |
| Parameters | ||||
| Max.Hook Load kN(lbf) | 2250 (5 0571 0) | 3150(708200) | 4500(1011600) | |
| Qty. And OD of Sheave mm(in) | (5+1) | (6+1) | (6+1) | |
| 1120(44) | 1270(50) | 1524(60) | ||
| OD of Xihu (West Lake) Dis. Sheave mm(in) | 1270(500) | 1524(60) | 1524(60) | |
| Dia. Of Wirerope mm(in) | 32(1 1/4) | 35(1 3/8) | 38(1 1/2 ) | |
| Overall Dimensions mm(in) | Length | 3200(126) | 3295(129.7) | 3305(1300) |
| Width | ||||
| Height | 3135(123.4) | 3700(145.7) | 3760(148) | |
| Weight kg(lbs) | 5764(12707.3) | 7980(17592.9) | 10600(23369) |
Detailed Photos
Lake Petro company is a professional supplier of various oilfield equipment, including oil drilling and service equipment,oil production equipment,OCTG ,wellhead & downhole tools and spare parts with API certification. our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). CHINAMFG company has become VIP (assigned) supplier and built strategic partnership with some coutries’ national petroleum companies.
FAQ
How can I place order?
A: You can contact us by email about your order details, or place order on line.
How can I pay you?
A: After you confirm our PI, we will request you to pay. T/T (HSBC bank) and Paypal, Western Union are the most usual ways we are using.
What’s the order procedure?
A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr -epaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 7-15days if we don’t have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you.
How do you take care when your clients received defective products?
A: replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.
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| After-sales Service: | Online |
|---|---|
| Warranty: | Online |
| Certification: | ISO 9001:2008, API |
| Power Source: | Pneumatic |
| Operation Pressure: | Atmospheric Pressure |
| Applicable Medium: | Crude Oil |
| Customization: |
Available
| Customized Request |
|---|
What impact does sheave design have on cable and rope performance?
The design of sheaves has a significant impact on the performance of cables and ropes. Here’s a detailed explanation of how sheave design influences cable and rope performance:
- Reduced Wear: A well-designed sheave minimizes wear on cables and ropes. The groove depth and shape should be compatible with the cable or rope diameter, preventing excessive friction and abrasion. Smooth and rounded groove profiles are often preferred to reduce stress concentrations and extend the lifespan of the cable or rope.
- Proper Alignment: Sheave design ensures proper alignment of cables and ropes. The groove width and shape should match the cable or rope diameter to maintain consistent contact and prevent slippage. Correct alignment minimizes stress concentrations, reduces wear, and optimizes power transmission efficiency.
- Reduced Bending Stress: Sheave diameter influences the bending radius of the cable or rope as it wraps around the sheave. A larger sheave diameter results in a larger bending radius, reducing the bending stress on the cable or rope. By selecting an appropriate sheave diameter, the risk of premature fatigue or failure due to excessive bending can be minimized.
- Optimized Load Distribution: The groove depth and profile affect how the load is distributed across the cable or rope. A well-designed sheave ensures even load distribution, reducing the risk of localized stress concentrations that can lead to premature failure. Proper load distribution helps maximize the strength and durability of the cable or rope.
- Enhanced Grip and Traction: The groove depth and shape of the sheave play a role in providing grip and traction for the cable or rope. A deeper groove with an appropriate profile enhances the engagement between the sheave and the cable or rope, reducing the likelihood of slippage, especially under heavy loads or during sudden movements.
- Efficient Power Transmission: Sheave design impacts the efficiency of power transmission through the cable or rope. By selecting the appropriate sheave diameter and groove characteristics, the frictional losses can be minimized, resulting in more efficient transfer of force or motion.
Overall, sheave design has a direct influence on cable and rope performance. A well-designed sheave reduces wear, ensures proper alignment, minimizes bending stress, optimizes load distribution, enhances grip and traction, and promotes efficient power transmission. It is crucial to consider these factors when selecting or designing sheaves to maximize the performance and lifespan of cables and ropes in various applications.
What maintenance practices should be followed to ensure the reliability of sheaves?
To ensure the reliability of sheaves, proper maintenance practices should be followed. Regular maintenance helps to identify and address potential issues before they escalate, extends the service life of sheaves, and ensures optimal performance. Here are some maintenance practices that should be followed:
- Inspection: Regularly inspect sheaves for signs of wear, damage, or misalignment. Look for cracks, chips, or deformations in the sheave body, as well as wear patterns on the groove surfaces. Inspect the bearings for any signs of wear or excessive play.
- Cleaning: Keep the sheaves clean by removing dirt, dust, and debris. Accumulated debris can interfere with proper belt or rope alignment, increase friction, and cause premature wear. Use appropriate cleaning methods and avoid using harsh chemicals that could damage the sheave or its components.
- Lubrication: Follow the manufacturer’s recommendations for lubrication. Proper lubrication reduces friction, minimizes wear, and helps maintain the smooth operation of the sheave. Apply lubricant to the bearings, ensuring they are adequately greased for optimal performance.
- Alignment: Check the alignment of the sheaves regularly. Misaligned sheaves can cause belt or rope slippage, uneven wear, and increased stress on the system. Adjust the alignment as necessary to ensure proper belt tracking and minimize unnecessary strain on the sheave and associated components.
- Tension: Maintain proper tension in the belts or ropes. Improper tension can lead to slippage, reduced power transmission, and accelerated wear. Follow the manufacturer’s recommendations for the appropriate tension level and adjust as needed.
- Replacement: Replace sheaves or components that show significant wear, damage, or signs of fatigue. Continuing to use worn or damaged sheaves can compromise performance, increase the risk of system failure, and potentially cause damage to other components.
By following these maintenance practices, the reliability and longevity of sheaves can be ensured. Regular inspections, cleaning, lubrication, alignment checks, tension maintenance, and timely replacement of worn components contribute to the optimal performance and smooth operation of sheave systems.
How do sheaves assist in changing the direction of a moving cable or rope?
Sheaves play a crucial role in changing the direction of a moving cable or rope in mechanical systems. Here’s a detailed explanation of how sheaves assist in this process:
When a cable or rope needs to change its direction, it is guided around a sheave. The sheave’s groove provides a path for the cable or rope to follow, ensuring that it maintains contact and does not slip off. As the sheave rotates, it pulls or pushes the cable or rope in the desired direction.
The size and arrangement of sheaves determine the degree and nature of direction change:
- Single Sheave: A single sheave can change the direction of a cable or rope by 180 degrees. The incoming cable or rope enters the groove from one side of the sheave and exits on the opposite side, resulting in a complete reversal of direction.
- Multiple Sheaves: By using multiple sheaves in succession, the direction of a cable or rope can be changed by any desired angle. Each sheave guides the cable or rope in a specific direction, and the cumulative effect of the arrangement determines the overall direction change.
- Compound Sheaves: Compound sheaves consist of multiple grooves of different sizes on a single sheave. By looping the cable or rope around different grooves, compound sheaves provide options for changing direction and adjusting the mechanical advantage.
It’s important to note that the diameter ratios of sheaves also affect the speed of the cable or rope. When a cable or rope is guided from a larger sheave to a smaller sheave, the speed increases, while the reverse results in a decrease in speed.
Overall, sheaves assist in changing the direction of a moving cable or rope by providing a guided path and influencing the cable or rope’s movement through their rotational motion and groove design.
editor by CX
2024-04-23