Rail Switch Grinding Machine

NCM-4II rail switch grinding machine

 

Turnout is an indispensable and important switching equipment on railway line. Due to rolling and impact of rolling stock, each part often produces a flash, resulting in the change of the geometric size of each part and affecting the driving safety. In order to maintain the standard geometric size of each part of the turnout in operation, the defects such as flash must be eliminated. However, grinding with hand grinding wheel will cause defects such as irregularity and discontinuity.

A. Application

NCM-4II rail switch grinding machine is mainly used to grind switch point rail, frog point rail, wing rail top surface and side face fatty edge as well as top surface and side face fatty edge of various kind of rail. Due to its superior performance, rational construction, reliable quality, time and labor saving, it's an indispensable tool used in track maintenance operation.

 

B. Specification

1. Petrol engine

Model： GX200

Power： 4.8kW

RPM： 3600r/min

2. Grinding wheel

Specification： Φ250×Φ32×32

Max. linear speed： 60 m/s

3. Grinding vertical stroke： 170mm

4. Adjustable angle(tilt angle)： 30°

5. Dimension： 1450×900×1300mm

6. Weight： 134kg

 

C. Basic structure and working principle

 

Gasoline engine power output through v-belt transmission, make main shaft( grinding wheel) to produce rotary motion, through regulating tilt manipulation, locking grinding device in operation position, pressing down vertical control handle, the grinding wheel will contact with the rail up and down to finish the grinding operation. While the horizontal grinding operation will be finished by manipulating the sliding cart frame. Tilt wheel inclination is the responsibility of the block frame manipulation, maximum angle of tilt is around 30 degree. Pushing this machine and finish grinding work of different position.

Main structure: there are two parts: the grinding device assembly and large frame.

1, install a large frame with four unilateral insulation wheels moving on the track.

There are four double side wheels installed on the roller trolley frame which move vertically and horizontally on the large frame (grinding device).

Basic structures as follows:

1. Large frame 2. Walking wheel 3. Sliding wheel 4. Roller trolley frame 5. Guard 6. Grinding wheel 7. Girder 8. Tilt lock handle 9. Vertical handle 10. Tilt handle 11. Petrol engine 12. Slide moving handle 13. Spring 14. Vertical locking handle

 

 

 

 

 

 

 

Maintenance

 

1. Daily maintenance

1.1 Daily maintenance shall be carried out by the operator before and after operation every day. The main contents are: cleaning, lubrication, fastening, adjustment.

1.2 The daily maintenance of the engine shall be carried out according to the operating instructions of the engine of this type.

1.3 Wipe the machine comprehensively, keep it clean, make the metal see luster, and the paint see the natural color.

1.4 Check the fasteners to ensure that they are fully fastened and not loose or lost. Otherwise, tighten and mend.

1.5 Grease the lubricating part (grinding head) according to the regulations; Keep the transmission surface free of oil, no damage, no rust.

1.6 Check the grinding wheel wear and replace it as appropriate.

1.7 Check belt tension to make it appropriate. Adjust the lifting screw, keep the lifting flexible, no blocking.

1.8 Check whether the sprocket light screw system is flexible and the locking device is reliable.

1.9 Check the wheel protection cover to ensure that the cover is in good condition.

 

 

 

 

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