RU1834707C - Roller mill - Google Patents

Description

The invention relates to devices for grinding material.

The aim of the invention is to increase the reliability ..-...

In FIG. 1 shows the described roll mill, general view; figure 2 is a view along the arrow Anafig. 1.

The roll mill consists of rolls 4 and 5 fixed on frame 1 on horizontal shafts 2 and 3, as well as loading 6 and unloading 7 devices. Each of the shafts

2 and 3 is connected to the drive 8, ensuring their rotation towards each other. In addition, the opposite ends of the shafts 2 and

3 mounted on the frame 1 with the help of swivel joints 9, made, for example, in the form of a housing 10 mounted on the frame 1 with an internal spherical surface and mounted on the shaft 2 on the bearing 11 of the sleeve 12 with the external spherical surface, and moreover, the sleeve 10. and 12 connected by a finger 13, allowing the sleeve 12 to rotate in the housing 10 relative to the axis perpendicular to the shaft 2. The other ends of the shafts 2 and 3. are movably mounted on the frame 1, for example, mounted on rollers 14, the axes of which intersect on the axis of rotation of the corresponding swivel joint 9, and are connected to the power cylinders 15, which allow the rolls to return

4 and 5 to working position.

Valkova mill works as follows.

Material passes through the loading device b between the rotating shafts 2 and 3, where, as they are pulled into the gap between the rollers 2 and 3, the material particles are compressed and destroyed. After passing the shafts 2 and 3, a strip of compressed crushed material enters the unloading device 7.

In the case when a piece of hard-to-break material falls between the shafts 2 and 3, in order to prevent jamming of the shafts 2 and 3, their departure is provided

from each other, by overcoming the resistance force in the power cylinder 15 and turning one of the shafts or two shafts together relative to the hinges 9.

The resistance force in the cylinder 15 is achieved by connecting its cavity to a hydraulic accumulator (not shown).

The proposed roller mill eliminates the need for parallel movement of the shafts, which greatly simplifies the design and improves the reliability of the device. In addition, in this proposal self-alignment of shafts is provided depending on

pieces of material located in a particular area, which increases the efficiency of the device. It should also be noted that since in the proposed roller mill when large

inclusions occur non-linear feathers. location of the moving shafts, and angular, i.e.

shafts rotate relative to axes

swivel joints then this leads to

a significant reduction in the moment of inertia of the shafts, and, consequently, the forces required to move the shafts are reduced and the speed of the proposed device is increased.

Formula Invented

Claims (2)

1, a roller mill comprising a frame with loading and unloading devices, power cylinders and two rolls mounted on horizontal drive shafts, as well as guides for the ends of the shafts, different with, in order to increase reliability, the guides are installed at opposite ends of each roll sides of the rolls, the power cylinders are connected to the ends of the shafts in the guides, and the other ends of the shafts are fixed to the frame by means of articulated joints with axes of rotation perpendicular to the shafts, 2. The mill according to claim 1, wherein the guide ends of the shafts are mounted on rollers whose axes intersect with the axis of the corresponding articulated joint. ./