SU1368034A1 - Roller crusher - Google Patents

Description

The invention relates to a device for crushing various materials and can be used in the metallurgical, mining and chemical industries, as well as in the building materials industry.

The purpose of the invention is to improve the quality of crushing and reliability of the crusher.

FIG. Shows a roller crusher, general view; Fig, 2 - section aa in figure 1,

The roller crusher consists of a frame 1, on which, using bearings 2, a drive shaft 3 with eccentric parts 4 is installed. On the latter, with the help of bearings 5, leading gear wheels 6 are mounted, the drive gear engages with driven gear rims 7 rigidly fixed inside the eccentric roll 8, which is mounted on bearings 9 in frame 1

Gears with elastic (rubber) rings — the inner 10 and outer 11 — are connected to the frame. In FIG. 2, the elastic rings are shown in a deformed state caused by

Mr. offset cam up. The roll 8 on the podshpnik 12c rotatably mounted wear-resistant lining 13j made in the form of a pipe

0

nosti gearing 7; g - eccentricity of the drive shaft. To ensure the work of the transmission, it is necessary that the pitch diameter of the gear wheel 6 is less than the pitch diameter of the ring gear 7. The following ratio of the pitch diameters of the wheel 6 and the ring 7 th dg + 2r must be observed.

The gear ring 7, which is rigidly connected to the roller 8, informs it of rotational movement in bearings 9 installed in frame 1 o Because the outer surface of roller 8 is eccentric relative to the axis of rotation, the lining 13 installed on it in podshpnik 12 makes translational moving along circular paths with fine crushing cheeks 14 "at the same time, it can rotate relative to the eccentric surface of the roll 8. When the material is fed into the crushing chambers 18 and 19, the lining 13 is braked by friction forces, and the shaft 8 continues to rotate, together liner 13 circular translatory movement. At the same time, the lining periodically approaches either the left or the right fraction of 1mcc, crushing the material between them when the roll with the

0

five

Roller 8 with lining 13 is installed by lining moving away from the splitting cheek.

between the crushing cheeks 14, suspended on the fingers 15 and the connected rods 16 with the springs 17 with the frame 1c. In this case, chambers 18 and 19 40 of crushing are formed between the rollers and the crushing cheeks.

Crusher works as follows.

When the motor communicates the rotation to the drive shaft 3, the articulated 45s mounted on the eccentric parts 4 and fixed in the frame 1 by elastic rings 10 and 1 the gear wheels 6 perform translational movements along circular trajectories m, diameter. Q toryh equal to twice the eccentricity of the eccentric part 4 of the shaft. For each revolution of the drive shaft, the gear wheel 6 runs around the gear rim 7, together with it rotating with gg

2g with an angular velocity of 00, where from the angular velocity of rotation of the drive shaft; The diameter of the dividing ring between them increases and the crushed material is discharged from the crusher.

The advantage of the proposed crusher is the automatic change in the instantaneous speed of rotation of the roll and the transmitted moment due to the presence in the drive mechanism of an elastic system in the form of elastic rings 1 and 10 installed between the drive gears 6 and the frame 1 of the crusher. As the resistance to rotation of the roll 8 increases, which can occur when the crusher is overloaded or if individual pieces of more durable material enter the crushing chambers, the moment on the drive gears 6 increases, which automatically causes the elastic system 10 and P to deform. an increase in the moment on the roll 8, solid pieces of material are crushed, and the crusher enters normal operation

lining away from the fraction of the cheek.

the gap between them increases and the crushed material is discharged from the crusher.

The advantage of the proposed crusher is the automatic change in the instantaneous speed of rotation of the roll and the transmitted moment due to the presence in the drive mechanism of an elastic system in the form of elastic rings 1 and 10 installed between the drive gears 6 and the frame 1 of the crusher. As the resistance to rotation of the roll 8 increases, which can occur when the crusher is overloaded or if individual pieces of more durable material enter the crushing chambers, the moment on the drive gears 6 increases, which automatically causes the elastic system 10 and P to deform. an increase in the moment on the roll 8, solid pieces of material are crushed, and the crusher enters normal operation

in tation mode. As a result, interruptions in work are eliminated due to the need to clear the crusher from the gagging.

The absence of a transmission mechanism subjected to peak loads increases the reliability of the crusher. The presence in the transmission system of elastic rubber elements reduces peak loads, which also contributes to improving the reliability of the crusher. At the same time, the quality of crushing due to the pulsed application of crushing forces is improved. Impulse application, crushing forces are created due to accumulation of potential energy in an elastic system and its impulse transmission at the moment of crushing the material.

36803A

Claims (1)

Invention Formula Roller crusher, containing frame, hollow cylindrical roll with g with a grader, which is tarnically connected to the eccentric parts of the drive shaft, elastic rings and spring-loaded cheeks, characterized in that, in order to improve the quality of crushing and 10 of the operational reliability of the crusher, the hollow cylindrical roll is hingedly mounted in the frame and pivotally connected to the eccentric parts of the drive shaft through gears on 15 of its inner surface and the gears meshed with them, and the elastic rings are connected to the frame and the gears, the lining being mounted on the hollow cylindrical roller for rotation. W sixteen