冷再生机租赁车是道路养护工程中用于旧路面再生利用的专用设备，能将旧沥青路面、基层材料就地破碎、拌和并重新铺筑，大幅减少材料浪费与运输成本。其结构设计围绕 “就地再生” 核心功能，融合了破碎、拌和、输送等多重作业系统，各部分协同工作实现旧路面的翻新，了解其结构组成有助于更好地发挥设备性能。

　　Cold recycling machine rental vehicle is a specialized equipment used in road maintenance engineering for the recycling of old road surfaces. It can crush, mix and re pave old asphalt pavement and base materials on site, greatly reducing material waste and transportation costs. Its structural design revolves around the core function of "in-situ regeneration", integrating multiple operating systems such as crushing, mixing, and conveying. The collaborative work of each part achieves efficient renovation of old road surfaces. Understanding its structural composition helps to better utilize equipment performance.

　　底盘系统是冷再生机租赁车的承载基础，决定了设备的行驶性能与作业稳定性。多采用重型卡车底盘或专用履带底盘，卡车底盘机动性强，适合长距离转场，行驶速度可达 60 / 小时以上，适合多个工地间的频繁调动；履带底盘接地比压小，在松软路面（如未成型路基）上行驶不易陷车，作业时稳定性更好，适合大型路面再生工程。底盘车架采用高强度合金钢材焊接而成，截面呈箱型结构，能承受工作装置的巨大冲击力和振动，车架与工作装置连接部位装有减震垫，减少作业时的振动对底盘部件（如发动机、变速箱）的影响。转向系统根据底盘类型不同而异，卡车底盘采用液压助力转向，操作轻便灵活；履带底盘则通过调节两侧履带速度实现转向，转弯半径小，适合狭窄场地作业。

　　The chassis system is the load-bearing foundation of the cold recycling machine rental vehicle, which determines the driving performance and operational stability of the equipment. Heavy duty truck chassis or specialized track chassis are commonly used. The truck chassis has strong maneuverability and is suitable for long-distance transitions. The driving speed can reach over 60 kilometers per hour and is suitable for frequent transfers between multiple construction sites; The ground contact ratio of the tracked chassis is small, making it less likely to get stuck when driving on soft roads (such as unformed roadbeds). It has better stability during operation and is suitable for large-scale road regeneration projects. The chassis frame is made of high-strength alloy steel welded together, with a box shaped cross-section that can withstand the huge impact and vibration of the working device. The connection between the frame and the working device is equipped with shock pads to reduce the impact of vibration on chassis components (such as the engine and gearbox) during operation. The steering system varies depending on the chassis type. The truck chassis adopts hydraulic power steering, which is easy and flexible to operate; The tracked chassis can turn by adjusting the speed of the tracks on both sides, with a small turning radius and suitable for narrow field operations.

　　工作装置是冷再生机的核心作业部件，直接完成旧路面的破碎、拌和与摊铺。破碎转子位于设备中部下方，是实现路面破碎的关键，转子上均匀分布着高强度合金刀头，刀头材质为耐磨合金钢（含铬、钼等元素），能破碎沥青混凝土、水泥稳定碎石等坚硬材料，刀头排列呈螺旋状，确保破碎后的材料均匀分布。转子的高度可通过液压油缸调节，以控制破碎深度（通常可在 0-30 厘米范围内调整），满足不同再生层厚度要求。拌和装置与破碎转子同步工作，在破碎过程中向破碎后的材料喷洒再生剂（如乳化沥青、水泥浆），并通过转子叶片的旋转将材料与再生剂充分拌和，拌和均匀度直接影响再生路面的强度，因此叶片角度经过优化设计，确保材料在转子仓内形成环流，与再生剂充分接触。摊铺装置位于设备尾部，由刮板输送机和熨平板组成，刮板输送机将拌和后的材料输送熨平板前方，熨平板通过液压油缸调节高度和仰角，将材料摊铺成设计厚度和横坡，熨平板表面镀铬处理，减少材料粘连，保证摊铺表面平整。

　　The working device is the core operating component of the cold recycling machine, which directly completes the crushing, mixing, and paving of the old road surface. The crushing rotor is located below the middle of the equipment and is the key to achieving road crushing. High strength alloy cutting heads are evenly distributed on the rotor, and the cutting head material is wear-resistant alloy steel (containing elements such as chromium and molybdenum), which can crush hard materials such as asphalt concrete and cement stabilized crushed stone. The cutting heads are arranged in a spiral shape to ensure uniform distribution of the crushed materials. The height of the rotor can be adjusted by a hydraulic cylinder to control the crushing depth (usually adjustable within the range of 0-30 centimeters) and meet different requirements for the thickness of the regeneration layer. The mixing device works synchronously with the crushing rotor, spraying regeneration agents (such as emulsified asphalt and cement slurry) onto the crushed material during the crushing process, and fully mixing the material with the regeneration agent through the rotation of the rotor blades. The uniformity of the mixing directly affects the strength of the regenerated road surface. Therefore, the blade angle is optimized to ensure that the material forms a circulation in the rotor compartment and fully contacts with the regeneration agent. The paving device is located at the rear of the equipment and consists of a scraper conveyor and an ironing board. The scraper conveyor transports the mixed material to the front of the ironing board, and the ironing board adjusts its height and elevation angle through a hydraulic cylinder to pave the material to the designed thickness and cross slope. The surface of the ironing board is chrome plated to reduce material adhesion and ensure a smooth paving surface.

　　动力系统为设备提供行驶与作业所需的动力，需满足大功率、高可靠性要求。主发动机多采用大功率柴油发动机（功率通常在 200-500 马力），具有低速大扭矩特性，作业时（破碎、拌和）发动机转速稳定在 1500-2000 转 / 分钟，输出强大动力；行驶时可降低转速，节省燃油。发动机与工作装置之间通过液压传动系统连接，液压泵将发动机的机械能转化为液压能，通过液压马达驱动破碎转子、输送带等部件，液压系统压力可达 30-40 兆帕，能提供稳定的动力输出，且便于实现无级调速，适应不同作业负荷。冷却系统采用双循环水冷设计，分别为发动机和液压系统降温，散热器面积大，配备大功率风扇，确保设备在高温环境（如夏季正午作业）下油温、水温不超过警戒值。

　　The power system provides the necessary power for the equipment to travel and operate, and must meet the requirements of high power and high reliability. The main engine often uses high-power diesel engines (usually with a power of 200-500 horsepower), which have low-speed and high torque characteristics. During operation (crushing, mixing), the engine speed remains stable at 1500-2000 revolutions per minute, outputting powerful power; When driving, the engine speed can be reduced to save fuel. The engine and the working device are connected through a hydraulic transmission system, and the hydraulic pump converts the mechanical energy of the engine into hydraulic energy. The hydraulic motor drives the crushing rotor, conveyor belt and other components. The hydraulic system pressure can reach 30-40 megapascals, providing stable power output and facilitating stepless speed regulation to adapt to different operating loads. The cooling system adopts a dual cycle water cooling design, which cools down the engine and hydraulic system respectively. The radiator has a large area and is equipped with a high-power fan to ensure that the oil and water temperatures of the equipment do not exceed the warning values in high temperature environments (such as working at noon in summer).

　　控制系统用于协调各系统工作，确保作业参数精准可控。操作控制台位于驾驶室，配备液晶显示屏和操作手柄，显示屏实时显示发动机转速、液压系统压力、破碎深度、再生剂喷洒量等关键参数，便于操作人员监控设备状态。破碎深度控制系统通过安装在转子两侧的深度传感器，实时检测转子与地面的距离，操作人员可通过手柄设定目标深度，系统自动调节液压油缸实现精准控制，误差可控制在 ±1 厘米以内。再生剂喷洒系统由流量传感器和电磁控制阀组成，能根据破碎转子的转速和前进速度自动调节喷洒量，确保再生剂与破碎材料的比例稳定（如沥青再生剂用量通常为材料重量的 3%-5%），比例偏差可控制在 ±0.3% 以内，保证再生材料的强度。

　　The control system is used to coordinate the work of various systems, ensuring precise and controllable operation parameters. The operation console is located in the driver's cab and equipped with a LCD display screen and an operation handle. The display screen displays key parameters such as engine speed, hydraulic system pressure, crushing depth, and regeneration agent spray rate in real time, making it easy for operators to monitor the equipment status. The crushing depth control system detects the distance between the rotor and the ground in real time through depth sensors installed on both sides of the rotor. The operator can set the target depth through the handle, and the system automatically adjusts the hydraulic cylinder to achieve precise control, with an error controlled within ± 1 centimeter. The rejuvenator spraying system consists of a flow sensor and an electromagnetic control valve, which can automatically adjust the spraying amount according to the speed and forward speed of the crushing rotor, ensuring a stable ratio of rejuvenator to the crushed material (such as asphalt rejuvenator dosage is usually 3% -5% of the material weight), and the proportion deviation can be controlled within ± 0.3% to ensure the strength of the regenerated material.

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