| The diesel engine dispatching monorail locomotive is a coal mine light auxiliary transport traction device.Compared with the traditional diesel monorail locomotive,it is powered by a small diesel engine and is transported to the drive device through a hydraulic system to realize the load operation of the system.The driving force is output by two driving units,which is compact and can be operated remotely.Therefore,the dispatching of the monorail locomotive not only solves the complicated problems of long distance,large slope,heavy load and serious deformation of the bottom drum,but also solves a series of technical problems such as difficulty in passing through the damper,Compared with pneumatic monorail crane and battery monorail crane,it can be transported for a long time and meet various underground difficult working conditions.This paper takes the new monorail crane as the research object,carries on the structural design and the system modeling,optimizes the dispatch monorail crane vehicle practical performance.In this paper,the defects of the existing diesel monorail crane are summarized and analyzed.According to the actual downhole working conditions and work requirements,the design scheme of the hydraulic system is determined.The centrifugal safety trigger trolley is designed.The MATLAB software is used to calculate the bearing capacity of the single monorail locomotive under different slope inclination angles,the speed and traction characteristics under different slopes and verify the braking distance of the locomotive.Then the whole hydraulic system is designed and analyzed,and the transportation main circuit and safety auxiliary circuit are analyzed and designed respectively.The main components of hydraulic main system and auxiliary loop system are calculated and selected according to the working condition parameters of monorail crane,establish a mathematical model for the hydraulic system,and analyze the main influencing factors affecting the motor speed.The electro-hydraulic control remote control system of locomotive is designed,including remote control and wireless transmitter.Based on the AMESim simulation software,the model of the monorail suspension travel circuit,the brake circuit and the clamping circuit is simulated,and the relationship between load and system pressure difference is analyzed under different load conditions.Brake cylinder speed,displacement and cartridge valve Characteristic curve of intracavity pressure.The influence of the parameters of the damping hole diameter of the cartridge valve and the stiffness of the spool spring on the braking performance of the brake cylinder is analyzed.Using the FluidSIM software to simulate the transportation auxiliary loop,the feasibility of the auxiliary loop design is verified.Finally,using Solidworks software to complete the model building of the locomotive components and the overall locomotive assembly,using the Solidworks/Motion plug-in to perform kinematic analysis of the drive unit,more intuitive display of the force of the drive unit frame,using the ANASY/Workbench plug-in to drive The frame and brake arm are structurally analyzed,and their strength and stiffness meet various performance indicators.After the prototype production was completed,the in-plant test and the downhole industrial test were carried out respectively,which verified that the main circuit and the auxiliary circuit of the locomotive can complete the expected walking,clamping and braking work in the actual working process.Based on the safety and reliability of the monorail locomotive,the design of the hydraulic system and the overall mechanical structure of the monorail locomotive is studied,which has certain reference value for the improvement after dispatching the monorail. |
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