CN2304788Y - Assembled gear wheel of ball mill - Google Patents

Abstract

The utility model relates to an assembled gear wheel of a ball mill, which is combined by a gear ring and an inner wheel ring. The gear ring is cast steel product, the inner wheel ring is cast iron product, a plurality of lug bosses are arranged at the inside of the gear ring and the lug bosses are fixed with the inner wheel ring by bolts to connect the gear ring and the inner wheel ring together. The utility model combines the advantages of a cast steel gear wheel and a cast iron gear wheel into integration, has the advantages of low cost, long service life, simple structure, convenient installation and disassembly, etc., and is a novel assembled gear wheel of economy and practicability.

Description

The pebble mill built-up gear

The utility model relates to a kind of pebble mill, particularly relates to a kind of driving gear of pebble mill.

All will use pebble mill in industries such as cement making, production of phosphate fertilizer and ore dressing, large transmission gear is installed on the pebble mill, diameter has plurality of specifications such as 1.2m, 1.5m, 1.83m, 2.2m.These gears adopt cast inblock to process, and cast steel and cast iron two classes are arranged.Cast steel gear long service life, but manufacture cost height; The cast iron gear low cost of manufacture, but life cycle is short.In addition, this type gear is in use often because of the damage of the local gear teeth needs to change whole gear, the maintenance cost height, and dismounting is wasted time and energy, and influence is produced.

The purpose of this utility model provides a kind of advantage that integrates cast steel gear and cast iron gear, both can satisfy gear teeth requirement of strength, can reduce the new ball mill built-up gear of manufacture cost again greatly.

Technical solution of the present utility model is: built-up gear is combined by gear ring and inner rim two-part, and the gear ring inboard is furnished with a plurality of boss, and boss is fixed by screw and inner rim, and gear ring and inner rim are linked together.

Above-mentioned gear ring adopts cast steel to make, and inner rim adopts cast iron to make, and the two stack mounting can be reduced manufacturing cost and use cost greatly, prolongs life cycle.

In the using process, if the gear teeth damage, as long as old gear ring is taken off, inner rim is motionless when needing to change, and refilling a new gear ring can use, both saved the installation time, and cost saving again, overall cost can reduce by 50%.

According to design of the present utility model, all can adopt two kinds of material split casting processing stack mountings to make for disintegrator gear or some other non-standard large module gear.

Further describe the utility model below in conjunction with accompanying drawing:

Fig. 1 is the utility model structural representation;

Fig. 2 is Figure 1A-A partial sectional view.

As shown in the figure, the utility model is made up of gear ring 1 and inner rim 2, and gear ring 1 is a Cast Steel, and inner rim 2 is an ironcasting.Boss 3 is distributed on gear ring 1 inner circumference, and is by screw 4 that boss 3 is fixing with inner rim 2, and gear ring 1 and inner rim 2 are connected as a single entity.

In sum, the utlity model has low cost of manufacture, long service life, simple in structure, mounting or dismounting side Just waiting characteristics, is a kind of economical and practical novel built-up gear.

Claims (2)

1, a kind of pebble mill built-up gear is characterized in that being combined by gear ring and inner rim two-part, and the gear ring inboard is furnished with a plurality of boss, and boss is fixed by screw and inner rim, and gear ring and inner rim are linked together.

2, pebble mill built-up gear according to claim 1 is characterized in that gear ring adopts cast steel to make, and inner rim adopts cast iron to make.

Images