Comparison of 5 Drive Device Structures and Their Advantages/Disadvantages for Belt Conveyors

2025-05-29 15:54:06

Structure: Divided into external and internal electric drums. The external type has the motor installed outside the drum and rigidly connected, while the internal type has the motor and reducer inside the drum. The motor’s power is transmitted to the internal reducer via a coupling, which drives the drum to rotate.
Advantages: Excellent sealing, particularly suitable for dust-proof environments; simple installation of the drive device.
Disadvantages: Difficult maintenance after damage; unsuitable for occasions exceeding 40°C; requires selecting one specification larger.
Common Power Range: 1.5kW–30kW.

Structure: The motor’s power is directly transmitted to the reducer, whose output shaft (hollow shaft) is sleeved onto the drum’s output shaft.
Advantages: Good sealing for dust-proof environments; easy installation, saving width space of the belt conveyor; widely used in Europe and America.
Disadvantages: Limited power range.
Common Power Range: 1.5kW–4.5kW.

Structure: The motor’s power is transmitted to the reducer’s input shaft. The reducer’s output shaft and the drum’s output shaft are equipped with sprockets, and the reducer drives the drum via a chain.
Advantages: Simple structure; easy replacement of components; low cost.
Disadvantages: Unsuitable for high-dust environments; chain service life is significantly affected by installation and working conditions.
Common Power Range: 1.5kW–22kW.

Structure: The motor transmits power to the driving drum through a high-speed shaft coupling, reducer, and low-speed shaft coupling in sequence.
Advantages: Reliable operation; suitable for high-power applications.
Disadvantages: High cost; occupies large space.
Common Power Range: 55kW–355kW.

Structure: Power is transmitted via V-belts connecting the reducer and driving drum.
Advantages: Smooth transmission; minimal impact on the reducer and drum.
Disadvantages: Relatively high reducer cost.
Application: Suitable for medium-power scenarios (specific range depends on actual equipment parameters).

Drive Device Type	Structural Details	Advantages	Disadvantages	Common Power Range	Application Scenarios
Electric Drum Drive	External/Internal design; motor power transmitted to drum via internal reducer.	1. Excellent sealing for dusty environments. 2. Simple installation.	1. Difficult maintenance. 2. Unsuitable above 40°C. 3. Requires up-sizing.	1.5kW–30kW	Mining, grain processing (high-dust areas).
K-Series Hollow Shaft	Hollow output shaft sleeved onto drum; direct motor-reducer connection.	1. Good sealing for dust protection. 2. Space-saving; widely used in Europe/America.	Limited power capacity.	1.5kW–4.5kW	Compact medium-small conveying scenes.
Cycloidal Pinwheel	Chain-driven via sprockets on reducer and drum.	1. Simple structure. 2. Easy component replacement. 3. Low cost.	1. Unsuitable for high dust. 2. Chain life affected by installation.	1.5kW–22kW	Low-cost, low-dust scenarios (e.g., small warehouses).
DCY Hard Tooth Surface	Multi-stage coupling transmission for high power.	1. High reliability. 2. Suitable for heavy-duty applications.	High cost; large space requirement.	55kW–355kW	Large mines, ports (high-power conveying).
Suspended V-Belt Drive	V-belt transmission for smooth operation.	Smooth drive; minimal impact on components.	Higher reducer cost.	Medium power (varies by equipment)	Scenes requiring stable transmission (e.g., precision materials).

Sealing: Electric drum and K-series drives offer the best dust protection, while cycloidal pinwheel drives are least sealed due to exposed chains.
Power Adaptability: DCY reducers handle the highest power (≥55kW), while K-series have the narrowest range (1.5–4.5kW).
Maintenance: Cycloidal pinwheel drives are easiest to maintain, while electric drums require integral disassembly for repairs.
Space Occupancy: K-series are most space-efficient, while DCY drives are the bulkiest.

High-dust & ≤30kW: Prioritize electric drum drives.
Medium-small power (≤4.5kW) & compact space: Choose K-series hollow shaft reducers.
Low budget & low-dust: Opt for cycloidal pinwheel drives.
Large-scale, high-power (≥55kW): Select DCY hard tooth surface reducers.
Smooth transmission required: Prefer suspended V-belt drives.

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