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Diesel Engine Crankshaft 271-5658 2715658 For 3126 C7 3126E 3126B Engine 953B 953C 963C Loader
The diesel engine crankshaft is a fundamental component of an internal combustion engine, including diesel engines. It plays a crucial role in converting the reciprocating motion of the pistons into rotary motion, which powers various applications such as vehicles, industrial equipment, and generators.
Features and functions of a diesel engine crankshaft:
Function:
- The primary function of the crankshaft is to convert the linear (up-and-down) motion of the engine's pistons into rotary motion, which drives the engine's output shaft or wheels in the case of a vehicle.
Construction:
- Crankshafts are typically made from high-strength steel or alloy materials to withstand the mechanical forces, heat, and stress generated during engine operation.
Crankpins and Journals:
- Crankshafts have multiple crankpins and journals that are strategically placed and designed to connect to the engine's connecting rods and pistons. The crankpins provide the attachment points for the connecting rods.
Balancing:
- The design of the crankshaft includes counterweights and balancing to minimize vibrations and ensure smooth engine operation.
Timing Marks:
- Crankshafts often have timing marks that allow for precise alignment with other engine components, such as camshafts, to maintain accurate valve and ignition timing.
Main Bearings:
- The crankshaft rotates within the engine block and is supported by main bearings, which provide support and reduce friction.
Oil Passages:
- Many crankshafts have oil passages that allow engine oil to flow to critical areas, such as the main and rod bearings, to provide lubrication and reduce wear.
The engine crankshaft is designed with a perfect fit for your engine. It undergoes a special treatment process that enhances its wear-resistance, ensuring that it can withstand friction with other parts without any loss or damage. This feature guarantees its longevity, making it a reliable component that can be used for many years. The crankshaft has an advanced appearance and is lightweight, which reduces the overall weight of the generator and improves its efficiency.
High Reliability:
To ensure the high reliability and stability of the crankshaft, it undergoes strict quality control and testing. These tests ensure that the crankshaft is made of high-quality materials, has accurate dimensions, and has a smooth surface finish. Any defects or deviations from the required standards are identified and corrected during this process. After the quality control process, the crankshaft undergoes testing to ensure its reliability and stability. This testing involves subjecting the crankshaft to various loads and stresses to simulate the working conditions of the engine. The crankshaft’s performance is closely monitored during this process to ensure that it can withstand the required loads and stresses without any failures or damages. The strict quality control and testing process of the crankshaft ensure its high reliability and stability, reducing the risk of failures and repairs. This feature improves the engine’s overall reliability and stability, ensuring that it can operate smoothly and efficiently for an extended period.
Improve the Service Life:
This optimization process involves using advanced design and manufacturing techniques to enhance the crankshaft’s performance and durability. The crankshaft’s design undergoes optimization to ensure that it has the required strength and stiffness to withstand the loads and stresses. The design is also optimized to reduce the weight of the crankshaft, which improves the engine’s power and fuel economy. The optimization of the crankshaft’s design and manufacturing improves its service life and reliability, reducing maintenance and replacement costs. The crankshaft’s economic practicality is also improved, as it can operate efficiently for an extended period, reducing the need for frequent maintenance and replacement. This feature makes the crankshaft a cost-effective component that provides excellent value for money.
Product Parameter：
|
Product Name |
Engine Crankshaft |
|
Application |
Engineering Machinery Engine |
|
OEM Number |
2715658 |
|
Car Number |
Customized |
|
Size |
STD / Customized |
|
Material |
Customized |
|
Engine Number |
3126 / C7 / 3126E / 3126B |
|
Loader Number |
953B / 953C / 963C |
|
Condition |
100% Brand-new |
|
Warranty |
6 Months |
|
Packing |
Neutral Packing |
|
Application Industries |
Machinery Repair Shops, Construction Works, Energy & Mining |
Product Description:
There are three types of engine crankshafts: integral forging, integral casting and combination type.
1.Integral forged crankshaft is characterised by compact structure, light weight and high strength. However, it is difficult to obtain the required complex form and the balance block is not easily integrated with the crankshaft.
2.Integral casting crankshaft is characterised by good workability, low metal cutting, low cost and easy access to reasonable structural shapes. Such as oval crank arm, barrel-shaped hollow journal and unloading groove. In addition has a uniform stress distribution, but easy to appear casting defects (especially in the crankshaft corner parts), will seriously affect the fatigue strength of the crankshaft.
3.Combined crankshaft, large crankshaft due to the overall blank manufacturing capacity is limited, as well as partial damage to replace the whole crankshaft is not economic, so more use of combined crankshaft.
Combined crankshaft is generally divided into a set of combined crankshaft (a full set of combined or half set of combined) and disc type combined crankshaft two.
Product Structure:
The crankshaft usually consists of a main journal, connecting rod journal, crank, counterweight and front and rear ends. The main journal, the connecting rod journal and the crank form the crank.
The number of cranks for inline engine crankshafts is equal to the number of cylinders; the number of cranks for V-engine crankshafts is equal to half the number of cylinders.
The main journals are the supporting part of the crankshaft. Crankshafts can be divided into fully supported crankshafts and non-fully supported crankshafts according to the number of main journals. There is a crankshaft with main journals between two adjacent cranks, known as fully supported crankshaft; otherwise known as non-fully supported crankshaft.
The connecting rod journals are connected to the big end of the connecting rod and rotate in the connecting rod bearings, with the same number of connecting rod journals and cylinders. In order to balance the crankshaft, the connecting rod journals are arranged symmetrically. For example, the first and fourth cylinders of a four-cylinder engine crankshaft have their connecting rod journals on the same side, while the second and third cylinders have theirs on the other side, 180 degrees apart.
Product Role:
The role of the crankshaft is to convert the thrust from the piston connecting rod into rotational torque, to convert the reciprocating linear motion of the piston into a circular rotation of the crankshaft, and then to transmit the engine torque to the transmission system via the flywheel; it also drives the engine's gas distribution mechanism and other auxiliary devices.
To meet its sufficient strength and stiffness and to improve its wear resistance, the crankshaft is usually forged from high quality medium carbon steel or alloy steel, with the journal surface finishing and heat treatment. In recent years, high strength ductile iron has been used to cast crankshafts in order to save costs.
Product Types:
Depending on the number of crankshaft journals, crankshafts can be divided into fully supported and non-fully supported crankshafts. According to their construction, they can be divided into fully forged, cast and combined types.
Depending on the material, they can be divided into ductile iron and steel crankshafts. The former is one of the important parts of the engine.
