A Rail Drilling Machine is a type of portable drilling machine specialized for drilling holes in rails. Rail Drilling Machines are also popularly called as Rail Drills, Portable Rail Drill, Rail Core Drilling Machines, etc. Rail Drilling Machine,Tracked Drill Rig,Track Drill Machine,Rail Track Drill Machine Shenyang Lubang Railway Maintenance Machinery Co.,Ltd. , https://www.srmfrailwayequip.com
The Electric Driven Rail Drilling Machine runs on electricity. The machine needs an electric power supply either 230 volts or 110 Volts. This rail drill machines are equipped with power electric DC motor with brushes. The Electric Driven Rail Drilling Machines are ideal machines to use on railway workshops. When using Electric Driven Rail Drilling Machine in a remote location it can also be connected to generators or gen sets.
Pressure valve failure of the common causes and maintenance precautions
Pressure control valve referred to as the pressure valve. Its basic function is to control the pressure of the hydraulic system or to use pressure as a signal to control the movements of other components. By function can be divided into relief valve, pressure reducing valve, sequence valve, pressure relay. Its common is: the use of the role of the spool on the hydraulic pressure and spring force balance control. Common causes of failure of the pressure valve: Hydraulic system of agricultural machinery, the pressure valve is a more common type of components, the sudden failure of the pressure valve will directly affect the normal operation of mechanical equipment, this article points out the cause of the failure of the pressure valve. (1) The hydraulic valve core and valve body constantly wear and tear in use, making parts size, shape and surface quality changes. (2) Balance spring, valve core and valve seat in the hydraulic valve work under variable load for a long time, resulting in fatigue and cracks, causing the spring, broken valve seat sealing surface flaking and damage. (3) The remaining residual stress in the process of hydraulic valve parts processing and the external load stress in the process of using, exceeding the yield strength of the part material, the parts are deformed. (4) hydraulic oil mixed with excessive water or acidic substances, the use of a long time, the corrosion of parts in the hydraulic valve, so that it should lose the accuracy. (5) unbalanced radial force between the valve core and the valve sleeve, and finally the valve core is pressed against the inner wall of the valve sleeve to be jammed. (6) When the hydraulic valve is manufactured or repaired, the specified technical requirements are not met; or the parts are not kept in good condition, rust occurs, dirt is mixed in, and the like.