Conveyor Chain

Hi, today I will share with you what is conveyor chain. Why conveyor chain? What is so special with conveyor chain? Easy answer..because my job relate with this things :) So, what can I tell u about conveyor chain? Have you see this picture?

That is a conveyor chain. A conveyor chain is chain that has been designed specifically for chain conveyor systems. It consists of a series of journal bearings that are held together by constraining link plates. Each bearing consists of a pin and a bush on which the chain roller revolves.

Construction of Conveyor Chain:

Rollers
Free to rotate over the bushings. When chain engages with sprocket, roller work as bearing   and serve to reduce shock and wear. When chain is running on rails or wear strips, rollers reduce running friction on the chain.

Bushings
To obtain high wear resistance then press-fitted to the roller link plates, providing a bearing surface for pin rotation.

Link Plates
The component parts receiving chain tension. The holes for press-fitted pins or bushing are accurately punched to maintain uniform pitch.

Pins
Made to exact specifications for high strength, sturdiness and wear resistance, then rigidity press-fitted to the link plates. Pins resist shearing force through chain tension and rotate in the bushing, providing bearing surfaces when the chain articulates over sprockets.
Attachment – Provide when necessary for fixing attachments to the chain.

Type of Chain:

Hollow bearing pin chain
Hollow bearing pin chain allows attachments to be bolted through the hollow bearing pins. Attachments may be tightly fixed or held in a 'free' manner.

Solid bearing pin chain
Solid bearing pin chain has the same dimensions as hollow bearing pin chain but is more robust and thus suitable for more arduous conveyor applications.

Deep link chain
Deep link chain has deeper side plates than the normal chain plates and so provides a continuous carrying edge above the roller periphery. Deep link chain comes in solid and hollow bearing pin varieties.

Drop forged chain
Drop forged chain (also known as en-masse conveyor chain or scraper chain) is already fitted with attachments that have been welded directly onto the chain links.

Type of Roller:

R Roller
+Most basic, versatile roller types.
+Outside diameter of roller is larger than height of the link plate.
+Large allowable load and low frictional resistance.
+Suitable for carrying large and heavy material.
F Roller
+There is a flange on the roller serve to retain the chain on the rails.
+Perfect for rough usage condition and regular slat conveyance.
+Suitable for carrying large and heavy material.
S, M and N Roller
+S Roller – Outside diameter of roller is smaller than height of the link plate.
+M Roller – Outside diameter of roller is slightly larger than S roller.
+N Roller – Outside diameter same as M roller but pin diameter is larger, increasing its strength.
+Effective in alleviating the shock and wear the chain would normally suffer during sprocket engagement.

Basic Dimension:



P - Pitch
R - Roller Diameter
E - Roller Contact Width
H - Height of Link Plate
T - Thickness of Link Plate
D - Diameter of Pin
L - Length of Pin