SU944639A1 - Method of mounting-dismounting armour at relining moving cone of fone crusher - Google Patents

Description

(5) METHOD OF INSTALLATION AND DISMANTLING OF BOOKINGS

WHEN RENOKING A MOBILE CONE OF A CONE CRUSHER

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The invention relates to methods of securing and dismounting the armor of a rolling cone of cone crushers for large, medium and fine crushing. It can be used; in ore preparation departments of enrichment plants.

The armor fastening operation (the cone is very laborious regardless of the design of the mount unit. Even more laborious is the operation of loosening and dismounting worn armor.

There is a known method of fastening the armor of a rolling cone, which includes the installation of wedges between the support sleeve and the armor, and clogging them with the help of a percussion tool l.

However, this method is labor-intensive and does not ensure reliability of fastening due to the lack of samozat. The wedge falls out during operation and the body of the cone often suffers damage, as well as frequent injuries. The closest in technical essence to the invention is the method of assembling and dismantling bronipriferefterovke mobile cone cone crusher, including the installation of armor on the body of the cone and fixing it with a nut, screwed up when applying a tangential: dynamic dynamic load 2.

The disadvantage of this method is the need to use a special device, so. The mechanic hydraulics nut that requires additional equipment to mate with the armor mounting nut, which complicates the overall production of

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Claims (2)

- The purpose of the invention is to increase the safety of work and decrease. This goal is achieved by the fact that according to the method of mounting and dismounting the armor when re-lining the moving cone of the cone crusher including placing the armor on the body of the cone and securing it with a nut screwed on when applying a tangential dynamic load, at the end of the shaft, causing it to rotate with a subsequent slowing down of the speed of rotation by sharply braking the nut with a brake stop at the moment of its contact and with the latter. The drawing shows; 5en method of installation and dismantling of armor when resizing a rolling cone cone crusher. The movable cone is suspended by the end of shaft 1 on the crane, and the body 2 of the cone is worn with armor 3 fixed on the landing board using a nut k with conical projections 5 concentric placed in a brake stop 6 fixed to the foundation with a conical boring of the brake the cone is suspended on the crane coaxially with the brake stop 6 so that a radial clearance of% is left waiting for the conical surfaces of the protrusions 5 and the stop 6. Then the cone is rotated, providing it with the necessary peripheral speed. After that, the cone is lowered until the contact of the outer surface of the slope in 5 with the surface of the conical bore of the brake stop 6. The brake deceleration of the rotation of the cone until the nut stops completely lasts for 1-2 s. The cone continues to rotate within the limits of the itSlSO angle and then stops. Thus, a reliable tension of the armor on the landing of the cone body 2 is ensured. . Reducing the value, increased in this case, efforts, contributes to the coefficient | 5 cent friction on the contact surface of the nut and brake, equal to 0.1-0.2. Adjusting the dynamic force can be achieved by selecting the circumferential speed of the cone. Such a selection is necessary to differentiate the operations of tightening and release of armor; in the process of working self-engaging armor, the force of tightening the nut increases 1.3-1.6 times as compared with the initial tightening. Therefore, to loosen the nut, it is necessary to apply 1.7 times more force than when tightening. For the KMD-2200 crusher, when the nut was tightened, a cone speed of 1.1 m / s was selected, and when unscrewed, it was 1.85 m / s. The proposed method simplifies the known operation, reducing the work time and the number of personnel required by 2-2.5 times. In addition, nut breakages are eliminated and injuries are reduced. ; The invention of the method of mounting and dismounting the armor when re-fitting the movable cone of a cone crusher, including placing the armor on the body of the cone and fixing it with a nut screwed when applying a tangential dynamic load on it, and so on In order to increase the safety of work and reduce labor intensity, the cone is suspended by the end of the shaft, causing it to rotate, followed by slowing down the speed of rotation by abrupt braking of the nut using a brake stop at the moment of its contact with the latter. Sources of information taken into account in the x examination 1. Instructions UZTN for installation and operation of cone crushers. YE-1270.00, 1968. 2. Bykov V.I. and others. Operation and pejjOHT equipment of crushing factories. M., Nedra, 1973, with ..