SU1685518A1 - Cone crusher - Google Patents

Description

The invention relates to devices for the grinding and grinding of various materials, in particular to mechanisms intended for the preparation of animal feed from grain and mineral materials.

The purpose of the invention is to expand the technological capabilities of the device by providing grinding and increasing its productivity.

Supplying the cone crusher with an additional drive, kinematically connected to the axle of the articulated shaft support with a moving cone, and supplying the shaft with a locking element mounted to move it relative to the shaft, allows fixing the rotation in the opposite direction to the shaft on the shaft of the moving cone rotation of the unbalance vibrator of the crusher, which makes it possible to use the crusher for grinding materials, and also increases its productivity.

FIG. 1 shows a crusher, a vertical section; Fig. 2 is a diagram of the movement of the movable cone of the crusher during operation with an additional drive.

The cone crusher includes a housing 1 with a fixed hollow cone 2, in the cavity of which a movable cone 3 with a cover 4 is placed. Inside the body there is an unbalance vibrator 5 and a vertical shaft 6 with a hinge support 7, on which are mounted with bearings 8 and 9 with the possibility of independent rotation movable cone 3 and vibrator 5. Pin 10

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the hinge support 7 is fixed in the housing 1 on the bearings 11. The unbalanced vibrator 5 is an unbalanced mass 12 fixed on the sleeve 13 which is mounted on the bearings 9. The vibrator has a drive for its rotation, which is a pulley 14 driven by the rotation of the belt drive 15 .

The crusher is equipped with an additional drive, which is a pulley 16 with a belt drive 17, transmitting the rotation to the shaft through the elastic coupling 18 and the trunnion 10 in the direction opposite to the direction of rotation of the vibrator 5.

The shaft is provided with a locking element, which can be made in the form of a sliding key 19 mounted for movement relative to the shaft. In the movable cone 3, under the cover 4, a groove 20 is made to place the key 19 therein. At the same time, when the key 19 leaves the groove 20, the cone 3 can rotate unhindered on the shaft 6.

The housing 1 is supported through the springs 21 on the uprights 22 with additional shock absorbers 23.

Cone crusher works as follows.

The crusher allows working in two variants depending on the required grinding value of the starting material.

When turning off the rotational drive VA-to :: 6 with the unlocked movable cone 3, when the key 19 is pulled out of the groove 20 of the movable cone, the crusher works like a conventional inertial cone crusher. 8, as a result of rotation of the unbalanced vibrator, circular oscillations are generated with precession of the axis of the shaft 6 and the movable cone, the gyration point of which is located in the center of the hinge support 7. The movable cone 3, vibrating, rolls around the inner surface of the cone 2, twisted ,. . Chal source material.

The translation of the key 19 into the groove 20 of the movable cone and the activation of the drive shaft provide the movable cone with forced rotation in the direction opposite to the direction of rotation of the vibrator. At the same time, the material being ground is entrained into the space between the surfaces of the cones and, in addition to the compressive stresses, is subjected to intense destruction due to shear forces due to the relative movement of the working surfaces of the cones relative to each other.

Upon receipt of the granulometry of feed, approaching gradual; shmeleni to flour, in technological

five

The processing of the original product necessarily contains shearing forces. The scheme (figure 2) explains the nature of the movement of the rolling cone of the proposed

crushers. The centrifugal force, caused by the rotation of the unbalance (unbalanced mass 12) with an angular velocity y, carries into the circular oscillatory movement the shaft of the moving cone with a oscillation frequency equal to the frequency of rotation of the unbalance,

i.e. The process of oscillation of the crushing cone axis is accompanied by rolling of the inner surface of the stationary cone with a movable cone, as a result of which the movable cone rotates on its bearings relative to its axis with an angular velocity (ft), depending on the angular velocity of the unbalance rotation and the sizes of diameters

The Q contacting surfaces of the cones, moreover, due to the rolling direction of rotation of the movable cone relative to the shaft, is opposite to the direction of rotation of the unbalance fixed to

5 to the same shaft.

To ensure the sliding surface of the movable cone relative to its line of contact with the inner surface of the stationary cone, it is necessary to inform the compulsory rotational motion with an angular velocity, the magnitude of which exceeds the angular velocity by absolute value, caused by the rolling of its inner surface of the stationary cone under the action of centrifugal forces. unbalance Those. the condition must be met: the angle of the forced rotation speed

mobile cone o) accept ".

0 This contributes to the entrainment of the crushed product into the wedge space of the working chamber and its intensive abrasion, which allows to obtain a high crushing grinding stitch on the proposed cone crusher, which is necessary for the production of flour for the preparation of liquid fodder when nourishing the pigs.

In addition, additional mechanical forces on the source

Claims (1)

0 product contributes to its rapid destruction, which allows to improve the performance of the cone crusher feed. Claims 1. A cone crusher containing a core with a fixed hollow cone, in the cavity of which there is a movable cone with a lid, a debalance vibrator inside the case and an articulated vertical shaft on which are mounted A movable cone and a vibrator, kinematically associated with a drive of its rotation, characterized in that, in order to expand technological capabilities by providing grinding and increasing productivity, it is provided with an additional lead the house is kinematically connected with the axle of the articulated shaft support to enable it to rotate in the direction opposite to the direction of rotation of the vibrator, while the shaft is provided with a fixing element mounted for movement relative to the shaft, and in the movable cone under the lid a groove is made to loosen it fixing element 2 Crusher pop1, which differs from the fact that the fixing element is made in the form of a sliding key. eight 12  / ///// // // / / U / / TU / ////// ///// /////// ///// 20 21 }  /////////////// 7 //// 1 unforgettable Kof pick up / th scrap / s (STS / & eba / hans FIG. 2