摘要：【中文】本发明公开了一种用于轨道交通轮轨界面增黏的增黏颗粒及制备方法，包括以下步骤：步骤1：将二氧化硅粉末加入水中形成预混液；步骤2：将步骤1得到的预混液经喷雾干燥形成颗粒生坯；步骤3：将步骤2得到的颗粒生坯烧结得到成品颗粒；本发明制备得到的增黏颗粒在满足轮轨增黏需求的同时，可有效避免增黏过程中硬质颗粒导致的轮轨磨损和损伤加剧的问题；经测试增黏过程中轮轨材料磨损率较使用传统砂子颗粒增黏降低了70%，且轮轨试样表面光滑，无明显的颗粒压痕等损伤。 【EN】The invention discloses a tackifying particle for tackifying a rail-wheel interface of rail transit and a preparation method thereof, wherein the preparation method comprises the following steps: step 1: adding silicon dioxide powder into water to form a premixed solution; step 2: spray drying the premixed liquid obtained in the step 1 to form a particle green body; and step 3: sintering the green particle obtained in the step 2 to obtain finished particles; the prepared tackifying particles can meet the requirement of wheel rail tackifying, and can effectively avoid the problems of wheel rail abrasion and damage aggravation caused by hard particles in the tackifying process; the wear rate of the wheel rail material in the adhesion increasing process is reduced by 70% compared with that of the wheel rail material using the traditional sand particles, and the wheel rail sample has a smooth surface and has no obvious damage such as particle indentation and the like.

摘要：【中文】本发明公开一种列车撒砂器撒砂过程模拟实验装置及喷射效果检测方法，装置包括模拟车轮、模拟轨道、待测试列车撒砂装置、横风模拟装置和高速摄像机；模拟轨道过变频电机带动；模拟车轮固定在机架上，与模拟轨道滚动接触，撒砂装置固定在机架上，砂粒经过喷嘴喷射至模拟轮轨入口；模拟轮轨的出口处设有天平，用于收集通过模拟轮轨入口的砂粒；高速摄像机设置于模拟轮轨侧面，横风模拟装置设置于模拟轮轨的另一侧，用于产生高速气流。本发明通过模拟车轮和模拟轨道的相对运动对实际情况进行模拟，通过调节定位装置和气动调节装置可研究不同参数下撒砂装置喷嘴处颗粒的喷射行为，研究不同参数对于撒砂过程的影响，对实际撒砂参数具有参考意义。 【EN】The invention discloses a simulation experiment device for a sanding process of a train sander and a spray effect detection method, wherein the device comprises a simulation wheel, a simulation track, a train sanding device to be tested, a crosswind simulation device and a high-speed camera; simulating the driving of a track through a variable frequency motor; the simulation wheel is fixed on the frame and is in rolling contact with the simulation track, the sanding device is fixed on the frame, and sand grains are sprayed to the inlet of the simulation wheel track through the nozzle; a balance is arranged at the outlet of the simulated wheel rail and used for collecting sand grains passing through the inlet of the simulated wheel rail; the high-speed camera is arranged on the side surface of the simulation wheel rail, and the cross wind simulation device is arranged on the other side of the simulation wheel rail and used for generating high-speed airflow. The invention simulates the actual situation by simulating the relative motion of the wheels and the simulated track, can research the spraying behavior of particles at the nozzle of the sanding device under different parameters by adjusting the positioning device and the pneumatic adjusting device, researches the influence of different parameters on the sanding process, and has reference significance on the actual sanding parameters.

摘要：【中文】本发明公开了一种机械加速式的机车增黏撒砂装置，包括砂箱、砂箱下端与漏斗连接处设置有流量控制阀；还包括用于对砂子颗粒进行加速的加速装置；漏斗下端通过软管连接到加速装置的进砂口；加速装置包括叶轮和设置在叶轮中心的分砂轮；分砂轮外设置有定向套；还包括均匀设置到叶轮上的多个叶片定向套上设置有多个通孔，通孔对应相邻两叶片之间位置；加速装置下端设置有出砂口，出砂口连接喷嘴；还包括用于带动叶轮转动的第一电机；本发明通过高速旋转叶轮将增黏颗粒加速喷出，相对于压力式和重力式撒砂装置，可以达到更高的撒砂速度；可有效避免机车高速行驶过程中的气流干扰，提高颗粒喷射效率。 【EN】The invention discloses a mechanical acceleration type locomotive tackifying and sanding device which comprises a sand box, wherein a flow control valve is arranged at the joint of the lower end of the sand box and a funnel; the sand-removing device also comprises an accelerating device for accelerating the sand particles; the lower end of the hopper is connected to a sand inlet of the accelerating device through a hose; the accelerating device comprises an impeller and a sub-grinding wheel arranged in the center of the impeller; a directional sleeve is arranged outside the sand separating wheel; the impeller is characterized in that a plurality of through holes are uniformly arranged on a plurality of blade directional sleeves on the impeller, and the through holes correspond to the positions between two adjacent blades; the lower end of the accelerating device is provided with a sand outlet which is connected with a nozzle; the first motor is used for driving the impeller to rotate; the invention accelerates the ejection of the tackifying particles by rotating the impeller at a high speed, and can achieve higher sanding speed compared with pressure type and gravity type sanding devices; the air flow interference in the process of high-speed running of the locomotive can be effectively avoided, and the particle spraying efficiency is improved.