The Improvement Of Jaw Crusher Eccentric Shaft

The Improvement Of Jaw Crusher Eccentric Shaft

The improvement of jaw crusher eccentric shaft
First, to improve bad situation
The jaw crusher has been put into operation in the 1990s, multiple sleeve loosening the eccentric shaft sleeve, flywheel heavy-footed phenomenon, our engineers, testing, analysts buy that the crusher eccentric shaft sleeve, gland, there are some structural defects.
There are two main reasons:
The crusher eccentric shaft wind up kits and sleeve threaded to the design is unreasonable, the pulley end and flywheel end gland, sleeve threads are right hand. Counterclockwise circuit during operation, the eccentric shaft in the direction of the flywheel end, when the eccentric shaft serious by the sleeve counterclockwise cycle due to inertia, the gland a clockwise cycle of the torque to the flywheel pulley side sealed sets of threads are right hand, why the two glands propensity to variation both the direction of the pulley, pulley side of the gland modification to the pulley direction will pulley top tight end of the cone and, in turn, set firmly in the top tight in eccentric shaft, the pulley end of the sleeve is not too loose flywheel gland moving direction of the pulley, will sanction the flywheel end, make the sleeve easy to loose the afair of trifling in the loss of top tight force eccentric shaft.
Taper sleeve and the contact area between the eccentric shaft with the surface is not enough, by design, the contact area is less than 80 %, in order to create enough friction to overcome the inertia force of the taper sleeve, if less than 80 %, will cause the sleeve in the eccentric centre to produce loose, loose, eccentric shaft cylindrical and cone comprising a hole lazy and cause the flywheel face languorous. So that equipment can not oversee.
Second, repair and improvements
Change the flywheel side wind up sleeve and the sleeve threaded to
Because the thread is right - handed, the glands of sleeve will not maneuver to the pulley side, the pulley side kindhearted, so the pulley end threaded to the need to nickels, the flywheel side perfect sleeve and the sleeve threaded dextral changed to L eccentric shaft counterclockwise cycle, fit to the inertia force, the gland variation the behest of the flywheel to the top tight flywheel, turn the flywheel cone stuck tight - Top eccentric shaft sleeve eccentric fulcrum does not produce unsparing.
Repair with the expose of the eccentric shaft and the Bushes
Increase the skill area, unpersevering the eccentric shaft and bevel worthwhile welding surfacing, roughing and finishing the car, with the attend grinding, the grinding rubric is: to repair a good sleeve into the eccentric shaft with the breeze in, with the purpose of 400 emery do grinding media, grinding time 0. 5h, clean emery coated mimeographed substantiate, conforming as the blunder, use the aforementioned red tape and then grinding until you meet the requirements.
Repair worn flywheel end
100mm flywheel gland contact face unready on the flywheel side of the set of a 100mm long, short sets, in order to maintain the alike flywheel in the eccentric shaft position.
Third, the pef900 × 1200 jaw crusher eccentric shaft improve the effectiveness
Improvement of the better several pef900 × 1200 jaw crusher after a year of use, well, eccentric shaft and the Bushes did not blow in too loose, not only save a lot of spare parts costs, reducing the maintenance workload, but also better with other equipment production, improve the operating proportion.
 
 
 
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