SU762965A1 - Inertial cone crusher - Google Patents

Description

The invention relates to cone crushers for fine crushing of brittle materials and can be most successfully used in the crushing plants, divisions of the processing plants of non-ferrous metallurgy, where the processing of the largest volumes of ore is required.

The most responsible ’, complex and requiring increased reliability of the node in inertial crushers is the node of the vibrator and its drive. Through the use of inertial forces generated by such a vibrator, 4-5 times greater degree _

crushing than in conventional eccentric crushers. However, the constructive solutions of this node in the known models of crushers are complex in the preparation. nii th in operation.

The two-vibration inertial crusher is known, which includes a stand with an outer cone and a spherical support for the inner cone, on the shaft of which a horn 25 is mounted with an unbalanced vibrators! at the ends, equipped with drive cardan shafts £ ΐ]. Such a "machine has a complex design scheme, it requires the provision of conditions of self-30

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vibrating vibrators and has low reliability of drive elements.

According to its technical essence, the inertial cone crusher for fine crushing is the closest to the invention. It contains a bed with an outer cone and a spherical support for the inner cone, as well as an unbalance vibrator with a drive cardan shaft, equipped with a Hook cross joint with bearings on its trunnions ( 2]. This crusher has a simpler design, since it is equipped with only one vibrator and one drive shaft. At the same time, its frame is suspended on cables to a massive frame, and the drive shaft has considerable length to ensure the angle of confusion 'of the axis of the cone. All this leads to the bulkiness of the machine and an increase in the height of the installation at the expense of some simplification of the structure. _

The purpose of the invention is to reduce the height of the crusher. '

This goal is achieved by the fact that the ^ ^ in the inertial conical dro ± bilok for fine crushing, containing a bed with an outer cone and £

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a spherical support for the inner cone, as well as an unbalance vibrator with a drive cardan shaft, equipped with a Hook crosspiece hinge with bearings on its trunnions, the bearings are mounted so that they can be displaced along the crosspieces. . The inertia crusher vibrator requires uniform rotation, therefore for its drive in the known crushers the cardan shafts with two hinges are used. These hinges have plugs, between which there is a cross-piece with bearings on their trunnions. Bearings are fixed on the forks fixed in axial directions.

If to provide conditions for the relative displacement of the axles of the cross and bearings, the uniformity of the transfer of rotation can be achieved with one Hook joint.

At the same time, the length of the drive shaft is reduced several times, thereby ensuring a reduction in the height of the crusher.

FIG. 1 shows a structural diagram of an inertial cone crusher / in FIG. 2 is a vibrator assembly with a Hooke drive hinge having a movable crosspiece ί in FIG. 3 - the scheme of displacement in the hinge.

The crusher includes a housing with an outer cone 1 and a spherical support 2 for the inner cone 3, equipped with a shaft 4, on which an unbalance vibrator 5 is mounted by means of a bearing. The vibrator has a fork 6 with a sliding bearing 7 fixed on it. The same bearings are installed on the lower fork 8, belonging to the driving shaft 9. A cross 10 is installed between the forks, the trunnions of which are movably mounted in the bearings 7, In other words, the cross has the ability to rotate in the bearings and axial mixing in them. The shaft 9 is installed in the bearing bore of the housing and carries a drive pulley 11 at its lower end.

The work of the crusher is as follows.

When the shaft 9 rotates, the unbalance 5 with its central force causes the inner cone 3 to perform circular motions inside the outer cone 1.

The deviations of the unbalance 5 arising from the crusher axis are compensated by the displacement of the fork 6 together with the crosspiece 10 inside the bearings 7 relative to the lower fork 8 belonging to the drive shaft 9. At the same time, the axial rotation of the fork 6 relative to the crossbar occurs. The misalignment of the deviation of the cone 3 with the unbalance center of gravity vector (unbalance ahead of the deviation of the cone by an angle of 15 to 90 °) is compensated for by the longitudinal displacement of the plug 6 relative to its axis of the cross and turning relative to the bearings of the lower fork 8 (FIG. 3). Thus, the sum of displacements of forks with bearings along the axes of the cross, together with their rotations relative to the same axes, makes it possible to fully compensate for significant displacement of the unbalance and ensure the transmission of torque to it with a constant angular velocity. Ore falling into the cavity formed by the cones 1 and 3, collapses as they approach and is discharged along the chute.

The proposed crusher has an installation height of almost 30% less than that of the known. For example, the height of the crusher KID-1750 is reduced from 8.5 to 5 m.

Claims (1)

Claim Inertial cone crusher for fine crushing, containing a bed with an outer cone and a spherical support for the inner cone, as well as an unbalance vibrator with a drive cardan shaft, equipped with a Hook cross in the form of a hinge with bearings on its axles, and With the fact that, in order to reduce the constructive height of the crusher, the bearings are mounted so that they can be moved along the crosses axles.