SU1209282A1 - Roll crusher - Google Patents

Description

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This invention relates to energy, mining, and other industries 5 where grinding processes for fragile materials are used.

The purpose of the invention is to increase the uniformity of wear of the working surfaces of the rolls.

FIG. 1 is a schematic side view of the proposed crusher, FIG. 2, a section A-A in FIG. D with a detailed depiction of one of the possible embodiments of the drive for moving the inclined gshastine switchgear.

The crusher consists of rolls 1 rotating one towards the other and placed in a knuckle house 2 with a loading neck 3. The inclined plates 4 of the distributing device are connected with rods 5 and b with the possibility of reciprocating longitudinal (axial) movement. The drive of this movement is provided by the cam 7 acting on the shoulder of the two shoulders, the second arm 9 of which interacts with the thrust 5. The rotation of the cam 7 is driven through a gearbox, for example, a worm gear 10 from the electric motor 11. The return movement of the shoulder of the two shoulders and t gi 5 is ensured by the action of the twist 12 and 13 respectively. The reducer 10. is fixed on the casing 2 of the crusher by means of a bracket 14

In accordance with the nature of the required movement, the force developed by the large force 12 must be significantly greater than the force from the spring 13.

The crusher works as follows: 3 th.

The switchgear is put into operation simultaneously with turning on the drive of rotation of the rolls. At the same time, the motor 11, through the gearbox 10, causes the cam 7 to rotate, which interacts on the arm 8 and the tightly connected piston 9. In the MESSAGE, the arm 9 acts on the pull 55 transferring the force from the spring 12 and driving it along its axes, Inclined plates 4 move in the same direction; fixed on tgakh 5 and 6, the Movement of m g 5 and b and the plates 4 connected with them in the opposite direction (to the right) occurs (Fig. 2) under the action

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13, Extreme position of t g 5 and 6 and plates 4 are shown by dashed lines,

Since the moment developed by the spring 12 is greater in magnitude of the moment from the action of the spring 13; the pattern of movement of the plates and t r is set by the rotating cam. At the same time

possible seizure of plates on a

Example 3 by foreign objects caught in the crusher will not cause a breakdown of the switchgear, since only force can be transferred to the tubes 5 and 6 and the plate 4,

  developed by springs 12 and 13, the characteristics of which must be matched with the strength of the moving parts of the device,

., Q - The material is fed into the crusher through the filling neck 3. Partially the material flow is deflected to the sides by the inclined plates 4, thus ensuring its penetration to those peripheral areas

roll shafts that are usually left unloaded. Moving the plates 4 eliminates the possibility of forming permanent zones of excessive post-expansion of the material being crushed. Moreover, the cam shape can define the desired movement of the switchgear, ensuring uniform wear of the shroud shaft: ka.

.-. edd inclined plates 4, set at a distance comparable to half the length of the bandage, make it possible to reduce the required travel of bars 5 and 6 (sheG: 2). Variants are also possible with a large number of planes; if the size of the crushing material creates the danger of individual pieces getting stuck between them.

Thus, the proposed solution ensures uniform loading during the time of each section of the tire and thus its even wear and, consequently, longer service life of the tires, improving the quality of the finished product and reducing the time and labor costs for servicing roller crushers.

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The economic effect from the use of the invention is due to the exception or significant - reduction in the number of operations of dressing bandages, increasing the service life 12092824

there would be no bandages, since there is no removal of ductions due to an increase in the pure metal from the surface of the band during operation time, as well as an improvement in the groove, an increase in working efficiency and a better quality of crushing.

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 Editor N. Tupitsa

Compiled by L. Chubukova

Tehred A.Ach Proofreader M.Maksimishinets

Order 347/12

Circulation 583 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch of General Staff Patent, Uzhgorod, st. Project, 4

2

Claims (1)

ROLL CRUSHER containing drive rolls, a casing with a loading neck and a switchgear with inclined plates, characterized in that, in order to increase the uniformity of wear of the working surfaces of the rolls, the switchgear is located under the loading neck and is made with rods that are parallel to the rolls with the possibility of reciprocating longitudinal movement from the drive and are associated with inclined plates.