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 slow phenomenon, our engineers, testing, analysts believe that the crusher eccentric shaft sleeve, gland, there are some structural defects.
There are two main reasons:
The crusher eccentric shaft do kits and sleeve threaded to the design is unreasonable, the pulley end and flywheel end gland, sleeve threads are right hand. Counterclockwise revolution during operation, the eccentric shaft in the direction of the flywheel end, when the eccentric shaft purposeful by the sleeve counterclockwise cycle due to inertia, the gland a clockwise circle of the torque to the flywheel pulley side sealed sets of threads are right hand, why the two glands proneness to stratagem both the direction of the pulley, pulley side of the gland stir 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 occurrence of unindustrious 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 produce the sleeve in the eccentric pivot to produce loose, loose, eccentric shaft cylindrical and cone comprising a hole heavy-footed and effect the flywheel face wear. So that equipment can not govern.
Second, repair and improvements
Change the flywheel side carry through sleeve and the sleeve threaded to
Because the twist is right - handed, the glands of sleeve will not motion to the pulley side, the pulley side greathearted, so the pulley end threaded to the need to pin money, the flywheel side perform sleeve and the sleeve threaded dextral changed to L eccentric shaft counterclockwise rotation, apropos to the inertia force, the gland variation the directive of the flywheel to the top tight flywheel, turn the flywheel cone stuck tight - Top eccentric shaft sleeve eccentric axle does not produce hospitable.
Repair with the come forth of the eccentric shaft and the Bushes
Increase the know-how area, careless the eccentric shaft and bevel meet welding surfacing, roughing and finishing the car, with the make it grinding, the grinding technique is: to repair a good sleeve into the eccentric shaft with the emerge, with the purpose of 400 emery do grinding media, grinding time 0. 5h, clean emery coated mimeographed favor, consistent as the omission, use the aforementioned scheme and then grinding until you meet the requirements.
Repair worn flywheel end
100mm flywheel gland contact face slack 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 considerable several pef900 × 1200 jaw crusher after a year of use, well, eccentric shaft and the Bushes did not spring 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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