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 lethargic phenomenon, our engineers, testing, analysts consider that the crusher eccentric shaft sleeve, gland, there are some structural defects.
There are two main reasons:
The crusher eccentric shaft consummate kits and sleeve threaded to the design is unreasonable, the pulley end and flywheel end gland, sleeve threads are right hand. Counterclockwise cycle during operation, the eccentric shaft in the direction of the flywheel end, when the eccentric shaft mean business by the sleeve counterclockwise circle due to inertia, the gland a clockwise orbit of the torque to the flywheel pulley side sealed sets of threads are right hand, why the two glands disposition to procedure both the direction of the pulley, pulley side of the gland act 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 permit the flywheel end, make the sleeve easy to loose the afair of inattentive 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 create the sleeve in the eccentric focus to produce loose, loose, eccentric shaft cylindrical and cone comprising a hole lethargic and generate the flywheel face indolent. So that equipment can not manage.
Second, repair and improvements
Change the flywheel side realize sleeve and the sleeve threaded to
Because the spun wool is right - handed, the glands of sleeve will not move to the pulley side, the pulley side lavish, so the pulley end threaded to the need to chicken feed, the flywheel side settle sleeve and the sleeve threaded dextral changed to L eccentric shaft counterclockwise cycle, opportune to the inertia force, the gland stirring the decree of the flywheel to the top tight flywheel, turn the flywheel cone stuck tight - Top eccentric shaft sleeve eccentric centre does not produce generous.
Repair with the emerge of the eccentric shaft and the Bushes
Increase the perspicacity area, unpersevering the eccentric shaft and bevel fruitful welding surfacing, roughing and finishing the car, with the come out grinding, the grinding new wrinkle is: to repair a good sleeve into the eccentric shaft with the come out, with the purpose of 400 emery do grinding media, grinding time 0. 5h, clean emery coated mimeographed assert, cognate as the error, use the aforementioned method and then grinding until you meet the requirements.
Repair worn flywheel end
100mm flywheel gland contact face indifferent on the flywheel side of the set of a 100mm long, short sets, in order to maintain the identical flywheel in the eccentric shaft position.
Third, the pef900 × 1200 jaw crusher eccentric shaft improve the effectiveness
Improvement of the elder several pef900 × 1200 jaw crusher after a year of use, well, eccentric shaft and the Bushes did not time 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 percentage.
 
 
 
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