Model Numbers: 4229182 (422 - 9182), M5X80
Applicable Excavator Models: 312GC, E312GC, E312C, E312D, E312DL, E313E, E313D2
Function: The swing motor is a crucial component that provides the rotational force required to swing the upper structure of the excavator. This enables the excavator to change the direction of its digging and loading operations.
2. Performance Specifications
2.1 Torque Output
Rated Torque: The motor is designed to provide a rated torque of [X] Nm (Newton - meters). This torque value is essential for smoothly and efficiently swinging the excavator's upper structure, even under load. It determines the ability of the motor to handle the inertia and resistance during the swing operation.
Peak Torque: The motor can generate a peak torque of [Y] Nm for short - term, high - load situations such as sudden stops or starts of the swing motion. The peak torque capacity allows the motor to handle unexpected loads without stalling or causing damage to the motor and associated components.
2.2 Speed Ratings
Rated Speed: The rated rotational speed of the swing motor is [N1] revolutions per minute (rpm). This speed is optimized to provide the appropriate swing speed for the excavator's normal operation. It affects the productivity and precision of the swing movement, allowing for efficient digging and material handling.
Speed Range: The motor may have a variable speed range. The minimum speed can be [N2] rpm and the maximum speed up to [N3] rpm. This range allows the operator to adjust the swing speed according to the specific requirements of the work, such as slow and precise positioning or rapid swing movements during loading operations.
3. Construction and Components
3.1 Motor Type
[Specify Motor Type]: The exact motor type (e.g., hydraulic, electric) would need to be determined based on the design. If it's a hydraulic motor, it converts hydraulic energy into rotational mechanical energy through the movement of internal components such as pistons or vanes. If it's an electric motor, it uses electromagnetic principles to generate rotational force.
Casing and Housing: The motor casing is made of high - strength materials such as cast iron or alloy steel. The housing provides protection to the internal components and is designed to withstand the forces and pressures generated during operation. It also serves as a mounting structure for other components and helps in dissipating heat.
Internal Components:
If Hydraulic: The internal components may include pistons (in a piston - type hydraulic motor), which are made of hardened steel and move in a reciprocating motion within cylinders. The pistons are precisely machined to ensure proper sealing and efficient energy conversion. The valve plate controls the flow of hydraulic fluid to and from the pistons, directing the movement and thus the rotation of the motor.
If Electric: The stator and rotor are the key components. The stator is the stationary part that contains the windings and creates a magnetic field. The rotor, which rotates inside the stator, is made of laminated magnetic material and is connected to the output shaft. The design of these components determines the motor's efficiency and torque - speed characteristics.
3.2 Sealing System
The motor is equipped with a comprehensive sealing system to prevent the ingress of contaminants such as dirt, water, and hydraulic fluid leakage (if applicable). The seals are made of high - quality elastomeric materials that are resistant to the operating environment and the fluids involved. Seals are placed around the output shaft, at the housing joints, and other critical areas to maintain the integrity of the motor's internal components and ensure reliable operation.
