Description

A, applicable scope
NGM - 4.8 type internal combustion rail grinding machine is suitable for *3 kg/m - *5 kg/m rail weld, uneven joint, rail side fat edge, rail surface welding repair parts, such as grinding. With high work efficiency, grinding of good quality, simple operation, and convenient way etc, and is railway works overhaul, maintenance and repair the necessary tools.

Second, the main technical parameters
1, internal combustion engine
Type: GX**0
Speed: ***0 r/min
Power: 4.8 kW
2, grinding wheel bolt fastening flat wheel φ **0 x *5 x φ *5
3, spindle revolution: ***0 r/min
4, grinding head Angle *0 °
5, grinding head stroke *0 mm
6, the machine quality: **0 kg
7, outlook size: ***0 x **5 x **1

Three, the basic structure and working principle
Working principle: NGM - 4.8 type internal combustion rail grinding machine to gasoline engine is the power, through the centrifugal clutch drive synchronous belt wheel, through the synchronous belt transmission of power to the spindle, drive wheel for rotary motion, and at the same time through a feed the handwheel to adjust the amount of feed grinding wheel, such as need grinding rail side and arc place, can through the rotation as form the handwheel to rail for rail form grinding.
Basic structure as shown in figure:
1 as form the handwheel, 2 as shape frame, 3 feed the handwheel, 4 gasoline engine, 5 frame, 6 bolt fastening emery wheel, and guide wheel, 8 go road wheel

Four, the use of safe measures and method of use
(a) before use security measures:
1, check the engine fuel quantity and oil a quantity to whether enough, such as insufficient, first add fuel and oil. The specific methods according to gasoline engine specification.
2, homework before, first will feed the handwheel to the top, make the wheel from rail surface, and then will auxiliary support bearing well, start the engine 4, idle *0 seconds, check drive part is flexible, have without abnormal noise, threaded connection is loose.
3, rail grinding machine by one person or two operation, a walking like form the handwheel, as a support form frame.
4, at grinding operation personnel must wear appropriate protective equipment: Glasses, gloves, etc.
5, such as grinding Mars fell on or close to flammable, should take protective measures to avoid fire.
(2) operation methods:
1, according to the above prepared work, clockwise rotation feed the handwheel 3, the wheel down.
2, access to good grinding quality, must according to two steps.
A) coarse grinding, grinding from rail surface start, sander along the rail reciprocating movement, slow down wheel grinding convex parts, stay away from the ground to the rail surface 1 mm, then rotate handwheel as form according to the above method grinding side.
B) fine grinding: In the basis of coarse grinding polishing machine back in position, ready to burnish rail surface. When grinding machine in place, put down the grinding wheel, just touch the weld not near the rail surface polishing, from the rail surface began to burnish, then rotation as shape wheel grinding profile, burnish range should achieve weld on both sides of the **0 mm, to compensate for grinding wheel wear, should adjust feed grinding wheel
3, burnish is completed, must be anti-clockwise rotation handwheel, carry on the grinding wheel to allow for the next weld grinding, reduce the gas, closing gasoline switch, make gasoline engine flameout, stop work.
4, road before, will shape frame and frame vertical reset to ensure transportation safety.

note
1, before use, must the gasoline engine manual filling oil;
2, not allowed to use speed below ***0 r/min, the grinding wheel;
3, replace grinding wheel former must stop;
4, never use already damaged wheel;
5, replace grinding wheel spin after *0 seconds, in running in process must be away from the other personnel;
6, use inspection wheel is in good condition, check the fastening nut is loose.
Machine maintenance and maintenance
1, grinding machine spindle angular contact bearings, guide wheel rolling bearing, walk the road wheel bearings, interface wheel synchronous belt wheel bearings, clutch each bearing a bearing place to regularly injection and replace grease.
2, the machine run up to **0 hours, should remove cleaning spindle bearing, replace the grease.
3, in use, transport process should not be put, fall.
4, long time no, machine should be placed in ventilated, dry, no corrosion gas inside storeroom, internal combustion engine should put all fuel.
5, grinding wheel should be moistureproof, collision, prevent pressure.
6, gasoline engine recommend running environment temperature in *5 ℃ to *0 ℃ - between.
7, recommended octane number in # *0 or higher unleaded gasoline, charging gasoline, engine should stop, and far away from the fire origin, come on want right amount, come on after rub-up machine surface residual gasoline.
8, always check the engine lubricating oil a quantity to whether enough, air filter is clean.
9, don't let the machine be rain, such as after the rain should be gasoline engine and machine all dry.