建筑与工程机械_上瀛传动减速机官网精于制造·专于传动

建筑与工程机械

混凝土搅拌车：调节搅拌筒的转速。塔式起重机：控制起升机构、回转机构和变幅机构的速度。

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行业说明

减速机在建筑与工程机械中扮演着核心传动角色，通过降低转速、增大扭矩实现设备的高效稳定运行。以下是其关键应用与技术特点概述：

一、核心作用与工作原理
‌降速增扭‌
建筑机械（如塔吊、挖掘机）需大扭矩驱动重载，但电机输出多为高速低扭。减速机通过齿轮啮合将电机转速降低至工作需求（如塔吊起升机构），同时扭矩按比例放大，公式为：输出扭矩 ≈ 输入扭矩 × 减速比 × 传动效率‌。
‌运动方向控制‌
蜗轮蜗杆减速机可将电机轴向旋转90°，适应垂直-水平传动场景（如施工升降机的动力传递）‌。

二、典型设备应用场景
‌塔式起重机‌
功能：控制起升机构（吊钩升降）、回转机构（臂架旋转）及变幅机构（臂架角度调整）的速度与精度。
要求：高刚性、抗冲击（如K系列减速机，适配30-200kW电机，承载50-150吨）‌。
‌施工升降机‌
专用减速机采用‌平面二次包络蜗杆传动‌，蜗杆硬度≥HRC50，啮合接触面>70%，形成动压油膜降低磨损。
特性：速比16:1、额定功率11kW，环境适应性达-40℃~+40℃，具备反向自锁防下坠‌。
‌挖掘机与推土机‌
挖掘机：减速机将发动机动力转化为铲斗挖掘力，提升燃油效率；
推土机：增强履带推力，应对坚硬地质（如R系列减速机，扭矩达18000Nm）‌。
‌混凝土设备‌

搅拌车减速机控制滚筒转速（通常≤40rpm），确保混凝土均匀性；压路机需恒定碾压速度防止路面不平‌

应用优势

Reducer plays a core transmission role in construction and engineering machinery, achieving efficient and stable operation of equipment by reducing speed and increasing torque. The following is an overview of its key applications and technical features:

一、 Core role and working principle
Reduce speed and increase torque
Construction machinery, such as tower cranes and excavators, require high torque to drive heavy loads, but the motor output is mostly high-speed and low torque. The reducer reduces the motor speed to the required working speed through gear meshing (such as tower crane lifting mechanism), while the torque is proportionally amplified. The formula is: output torque ≈ input torque × reduction ratio × transmission efficiency.
Movement direction control

The worm gear reducer can rotate the motor axially by 90 °, suitable for vertical horizontal transmission scenarios (such as power transmission in construction elevators).

二、 Typical device application scenarios
Tower crane
Function: Control the speed and accuracy of the lifting mechanism (hook lifting), the slewing mechanism (boom rotation), and the amplitude mechanism (boom angle adjustment).
Requirements: High rigidity and impact resistance (such as K series reducers, compatible with 30-200kW motors, capable of carrying 50-150 tons).
Construction elevator
The dedicated reducer adopts a planar secondary enveloping worm drive, with worm hardness ≥ HRC50 and meshing contact surface>70%, forming a dynamic pressure oil film to reduce wear.
Features: Speed ratio of 16:1, rated power of 11kW, environmental adaptability up to -40 ℃~+40 ℃, with reverse self-locking and anti fall function.
Excavators and bulldozers
Excavator: The gearbox converts engine power into bucket digging force, improving fuel efficiency;
Bulldozer: Enhance track thrust to cope with hard geological conditions (such as the R series gearbox, with a torque of up to 18000Nm).
Concrete equipment
The reducer of the mixer truck controls the drum speed (usually ≤ 40rpm) to ensure the uniformity of the concrete; The roller needs to maintain a constant rolling speed to prevent uneven road surfaces

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