SU1745549A1 - Grinding device - Google Patents

Abstract

Use: in the production of chips from wood raw materials in the forest, pulp and paper and woodworking industries. SUMMARY OF THE INVENTION: distance bushings, retaining rings, toothed disks are made with holes, the latter are not spaced from the center of the disks and from each other. The gears are interconnected by means of two rods, the ends of which are located in the openings of the stop rings. The threaded end of each clamping thrust sleeve is equipped with a pulley with a brake. 3 il.

Description

The invention relates to equipment for the production of wood chips from wood raw materials, including the apex part of the whips, debris, pickling and various debris, as well as pneumatic wood, and can be used in the timber, pulp and paper and wood processing industries.

The purpose of the invention is to increase the reliability of the device.

FIG. 1 shows a device for grinding materials, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The device for grinding materials includes a frame 1, on which two bearings 3 and 4 are mounted parallel to one to the other. Two shafts 3 and 4 driven by individual drives 5 and 6. The rolls 3 and 4 have the same design and consist of shafts 7 and toothed disks 8 separated by spacer sleeves 9, with the disks 8 made with center holes and mounted on

rolls 7 free. The mounting of the rolls 3 and 4 into the frame housing 1 is carried out in such a way that the drive ends of the shafts 7 extend into different sides of the housing.

Due to this, the toothed disks 8 of one roll are opposed to the distance sleeves 9 of the second roll and vice versa, forming a grinding field formed by the teeth of 10 disks 8 located along a helical line. The gear discs 8, in addition to the centering aperture, are provided with a number of technological apertures 11, equidistant from the center of the discs 8 by a radius R, and among themselves by an angle a. Longitudinal rods 12 are inserted into at least two symmetrically arranged holes 11 of each toothed disk 8, and distance sleeves 9 cover these rods from the outside. The ends of the shafts 7 are different, one of them has an anvil ring 13, a neck for bearing support 2 and an output end with a key on which the half-coupling is mounted. The second end of the shaft 7 has a thread on which the stop thread of the sleeve 14 is screwed,

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the coir is captured in the bearing support 2, and a brake drum 15 is attached to the output end of the sleeve 14, which interacts with the brake device

16. On the shaft 7 between the stop ring 13 and the stop threaded sleeve 14 are mounted the disks 8 and the distance sleeves 9, and the outer disks 8 are in contact with the rings

17. Equipped with blind holes, made similarly to the holes 11 in the disks 8, where the ends of the rods 12 enter, and between the rings there are rings 18 made of friction material. The diameters of the friction rings 18, the rings 17, the stop ring 13 and the stop threaded sleeve 14 are the same and are selected, based on the magnitude of the moment, when the JPOM cat is guaranteed grinding of the feed material.

After the rollers 3 and 4 are assembled, they are mounted on the frame 1, for which the supports 2 are installed in the housing cutouts and fixed in the vertical plane by the clamp 19, after which the hopper 20 is mounted on the bushing 1, the coupling halves of the drives 5 and 6 are connected and alternately for each roll The disks 8 are tightened by fixing the brake drum 15 with the brake device 16 and turning on the corresponding actuator 5 or 6. At the same time, the shaft. screwed into the threaded thrust sleeve 14, which consequently moves along the shaft together with the support 2 in the recess of housing I, since its housing has gaps 2h sufficient for the length of the sleeve when the disks 8 are fully tightened and in their idle state. The braking device 16 also moves in the axial direction.

In order to ensure the tightening of the disk 8 and their corresponding position against the spacer sleeves 9 of the second roll, the supports 2 on the side of the drive end of the hall 7 are fixed in the housing 1 from longitudinal movement due to the mounting spacers 21 installed on the bolt to the housing 1 after Installing the rolls 3 v, 4. After tightening the disks 8 with a force that ensures transmission from the drive from the tooth 10 to a time sufficient for grinding the feed material, produce a drive for this roll and release the braking device. Then, in the same sequence, the disks are tightened on the second roll, after which the crusher is ready for operation.

The device works as follows.

In the hopper 20 serves in some way waste and include drives 5 and 6 of both rolls 3 and 4 so that they

rotated one towards the other. The tooth 10 of the discs of both rolls 3 and 4 form an opposing helix and in position. when the corresponding teeth 10 of both rolls overlap the trajectory of the opposing teeth, the grinding of waste occurs. The resulting crushing of chips passes between the discs down and removed by any vehicle. In case a force appears on one or several disks exceeding the allowable moment, this disk or disks. influencing the rods 12, transfer this moment to the remaining discs and through the rings 17 and friction discs 18 to the thrust sleeve 13 and the threaded resistant sleeve 14, all the discs are rotated relative to the shaft, but the screw line remains and the device does not rub em its performance. In some cases, the rods play the role of shock absorbers, since during a short-term load a pair of forces is formed, which tends to return the disk to its original position.

Claims (1)

Invention Formula A grinding device that includes a frame, bearings, two rolls with toothed discs and spacers, shafts, one end of which is connected to the stop ring and the drive and the other with a thread for the clamping stop sleeve, characterized in that devices, distance bushings, stop rings and gear discs are made with holes, and then equidistant from the center of the discs and each other, the gear discs are interconnected by at least two rods, the ends of which are ozheny in openings thrust washers, and threaded miter of each clamping thrust hub. Znzhen pulley with brake. IM N 6frS9W.l rV3