SU1502081A1 - Cone crusher - Google Patents

Abstract

This invention relates to cone crushers for fine crushing. The aim of the invention is to increase the technological performance and reduce the dynamic loads on the foundation. The cone crusher comprises a housing 1 with four external cones 2 and internal cones 4, equipped with unbalance vibrators 6, connected by couplings 7 with gears 8, connected by one gear wheel 9, which is connected to the electric motor 11. Gear wheels 8 are connected to gear wheel 9 in such a way that the centers of gravity of the unbalanced vibrators of one pair of internal cones, placed diagonally, are directed towards each other, and the others - in opposite directions. 2 Il.

Description

3150

The invention relates to cone crushers of fine crushing, in particular to cone inertial crushers, and can be most widely used in the ore preparation departments of non-ferrous and ferrous metallurgy.

The aim of the invention is to increase the technological performance of the crusher and reduce the dynamic loads on the foundation.

In the crusher proposed, four crushing chambers 6 are housed in the same housing and vibrators with the same statistical moments are used.

the rotation of which in one direction with the same angular velocity is ensured by the forced synchronization of the gear wheel, as well as by the opposite orientation of the centers of gravity of a pair of unbalances located on the same diagonal of the body, and the opposite orientation of the pair of unbalances on the other diagonal.

Such an implementation and interaction of the unbalance vibrators, along with the symmetrical placement of the crushing chambers in the housing, provides dynamic balancing of the crusher as a whole, which leads to a significant reduction in the load on the foundation.

Replacing each cone in a known crusher with an inertial cone crusher significantly increases the specific productivity. This effect is due to the fact that in a known crusher, four cones carry out crushing only by those parts that form a crushing cavity, whereas the larger part of the surface of the cones facing the chamber walls does not participate in crushing. In the proposed crusher, each of the four crushing cones is enclosed in its own crushing chamber, which significantly increases the production of the finished product. At the same time, a certain increase in the total volume of the crusher does not have a decisive effect on the specific productivity, which remains 3-5 times more than the known one.

In addition, in the proposed crusher a greater degree of crushing is achieved in comparison with the known. This is defined by a different principle of crushing, realized in inertial cone crushers. In contrast

from the known crusher, in which the axes of the cones make only their own rotational movement, in the proposed crusher, which is a kinematically open system, the axes of the cones create an irregular procession on which mutational vibrations (vibrations) are imposed. Such a pattern of movement of the internal cones significantly increases the degree of crushing of the material.

Figure 1 shows a cone crusher, a longitudinal section; Fig. 2 is a diagram of the kinematic coupling of the vibrators and their mutual arrangement.

The crusher includes a housing 1 with four external cones 2, made in the form of threaded adjustment rings. The housing 1 has spherical supports 3 for internal cones 4 connected to shafts 5, on which dbalance vibrators 6 are connected with rotation, connected by compensation sleeves 7 with gear 3 connected by one gear wheel 9. The last one is connected by text transmission 10 with an electric motor 11. The gears 8 are connected to the gear wheel 9 in such a way that the centers of the weight of the unbalanced vibrators of one pair of internal cones, placed in a diagonal plan of a square, are directed towards each other (figure 2), and the other pair - in opposite sides.

Crusher works as follows.

The crushable material is loaded into the space between the cones 2 and 4. When the vibrators 6 rotate, a centrifugal force is created, causing the internal cones 4 to make a gyratory movement inside the external cones 2. As the material is lowered in the inter-cone space, , the rotational speeds of the unbalances and their moments of inertia, a predetermined degree of fragmentation is achieved.

There is no kinematic connection between the internal cones, so any of them can be stopped without affecting the work of others. In this case, the vibrator continues to rotate around the shaft 5, keeping the crusher dynamic balance unchanged.

The economic efficiency of a cone crusher is determined by the fact that it replaces four conventional inertial whips in productivity, and the area under it is twice as small as for four single crushers.

Claims (1)

Invention Formula A cone crusher containing a housing placed on the foundation with four crushing cones forming the crushing cavity, the drive shafts of which are kinematically connected to the transmission and the rotation axes in plan They lie on the diagonal of the quadrant, so that, in order to increase the technological indicators and reduce the dynamic loads on the foundation, the crushing cavity is made of autonomous chambers of the crushing chambers, according to the number of cones, with an unbalanced vibrator, with In this case, the vibrators are installed with the possibility of synchronous unidirectional rotation, and in one pair of vibrators located diagonally, the centers of the weight of the balance of the balances are oriented towards each other, and in the other pair - in opposite directions. Editor O. Yurkovetska Compiled by V.Gubarev Tehred L.Oliynyk Order 4997/8 Circulation 543 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., A / 5  . . .In .BMK. Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101 1 Proofreader M. Maksimikets Subscription