RU2424395C1 - Device to prepare snow mass for melting - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: device comprises a receiving hopper installed above a melting chamber and equipped with a movable lattice arranged on a frame and made of horizontal shafts with rigidly fixed discs, evenly installed along the shaft length, and hammers installed between each pair of discs along a helical line along the shaft. Shafts are installed in rolling bearings arranged in bodies located at the ends of the shaft, at the same time one body is connected to a motor-reducer, connected to this shaft via an elastic coupling. The frame of the movable lattice is made in the form of beams with guide slots evenly arranged in their upper part and eye bolts in the centre of these slots and tube braces on nuts that connect the beams. Each pair of driving shafts is made in the form of a rigid module, bearing bodies in which are rigidly connected to each other by means of protective ribs-screens and support planks, which interact with their side surfaces with guide slots of the beams with the possibility of fixation by means of eye bolts in centres of these slots to beams of the common frame of the movable lattice installed along the perimetre of the melting chamber.

EFFECT: simplified assembly and disassembly of driving shafts on a snow-melting chamber.

5 dwg

Description

The invention relates to the field of cleaning roads from snow mass and ice removed from road surfaces.

Known snow melting installation containing a receiving hopper with a movable grill mounted above the melting chamber (patent for invention No. 2224850, ЕНН 5/10, claimed. 02.27.2002, published. 05.08.2004). The movable lattice is made of horizontal horizontal drives with disks and hammers fixed perpendicularly to the hopper loading direction and rigidly fixed uniformly along the length of the shaft, while the hammers of one shaft are staggered relative to the hammers of the other shaft, and the shafts have a group reversible electric drive for their rotation. The shafts are mounted relative to each other at a distance providing a partial arrangement of the hammers of one shaft between the disks of the adjacent shaft. The whole installation has two group reversible electric drives with six shafts each. In this case, one of the six shafts on the side of the transmission gears installed at their ends is directly connected to the electric drive through the spindle device. Transmission gears on the one hand and bearings on the other hand are enclosed in split housings, the bases of which are integral with the frame common to each section.

A disadvantage of the known design of the snow melting installation is that it can only be repaired in the factory, which eliminates the installation itself from the duty cycle for a long time and requires significant material costs for the maintenance of snow-melting points.

Of the known installations for preparing snow mass for melting, the closest in technical essence, is the installation containing the receiving hopper with a movable grate installed above the melting chamber (utility model patent No. 67595 of 06/18/2007). The movable lattice is made of drive shafts horizontally mounted parallel to the loading direction of the hopper, with the possibility of their individual dismantling, while each of the shafts is connected to an individual drive in the form of a reversible motor gearbox and has hard disks fixed to each other and evenly mounted along the shaft length, between each pair of which are fixed hammers on a helix. The shafts are mounted on rolling bearings in housings located at the ends of each shaft, while one of the housings is connected via a flange to the corresponding gear motor, and the bearing housings in their lower part are made with double-sided wedge surfaces installed in a frame common to each shaft section , and fastened with it by four hinged bolts located in the grooves of these buildings. The whole installation consists of two sections, each of which contains one frame common to four drive shafts, with each drive shaft through the bearing housings located at its ends, attached to this frame by four hinged bolts located in the grooves of these housings with an external side. Sections with the help of pins are mounted on two beams rigidly fastened to the metal structure of the melting chamber.

This design of the installation significantly complicates the process of individual dismantling of drive shafts, especially taking into account the total number of snow melting chambers, and therefore sections and drive shafts, at all snow melting points. In addition, the hinged bolts for fastening the bearing housing of the drive shafts to the common frame of each installation section, located in the grooves on the outside of these housings, are exposed to constant exposure to aggressive media during operation, which leads to their corrosion and, therefore, premature failure. It should also be noted that at present, installation and dismantling of the installation is carried out in sections, in two steps, to and from the snow melting chamber.

The technical result of the present invention is to provide an installation that can increase its reliability and durability during operation, increase the throughput of the movable grate, and significantly reduce the time-consuming operations of the individual dismantling of the drive shafts of the installation and its mounting-dismantling on the snow melting chamber.

The technical result achieved is achieved by the fact that in the installation for preparing snow mass for melting, the frame of the movable lattice is made in the form of two beams with guide grooves and folding bolts equally spaced in their upper part, as well as pipes connecting the beams, each pair of drive shafts being a rigid module, structurally made in the form of two pairs of bearing housings, rigidly interconnected in each pair by common support strips and protective ribs-screens and interacting side Vym surfaces of the support strips housings with guide grooves beams to be attached hinged bolts each module on the frame beams, a frame itself movable grating is set along the perimeter of the melting chamber.

When dismantling, each pair of drive shafts with individual gearmotors is unfastened with two hinged bolts and removed by a crane from the common frame. The dismantling of the installation from the melting chamber is carried out in one go by lifting the frame of the movable grate common to the whole installation.

This design significantly reduces the time of dismantling the drive shafts and dismantling the installation, which significantly increases the efficiency of its operation.

An example implementation of the invention is shown in figure 1 ... 5, where:

figure 1 - shows a General view of the installation;

figure 2 is a view a of figure 1;

figure 3 is a view B of figure 2;

figure 4 - shows a rigid module of two drive shafts;

figure 5 is a view In figure 4.

The installation for preparing snow mass for melting consists of a hopper 1, which includes side rails, wheel guards and a rear folding guard of drives 2 with a movable grill mounted above the melting chamber 3. The movable grill is made of horizontal drive shafts 4 with discs rigidly fixed along the shaft length 5, between each pair of which hammers 6 are fixed, forming a helical line relative to the shaft 4. Each pair of shafts 4 is a rigid module 7, structurally made in the form of two housings 8 and 9, at the ends of each pair of shafts 4, while one housing 8 is connected through two cups 10 to two gear motors 11, respectively, transmitting rotation individually individually to each shaft 4 of this pair through an elastic coupling located inside each cup. Each of the housings 8 and 9 is structurally made in the form of two bearing housings 12, rigidly interconnected by support strips 13 and protective ribs-shields 14, with the possibility of interaction of the lateral surfaces of the support strips 13 with the guide grooves 15 of the beams 16 and subsequent fixing through the grooves using hinged bolts 17 on these beams, and the beams 16 themselves, interconnected by pipe ties 18 on the nuts 19, form a frame common to all shafts 4, based on the perimeter of the melting chamber 3.

Installation works as follows.

Snow and ice falls on the rotating shafts 4 of the movable grill, which, using hammers 6, crush them into fragments that fall into the gaps between the shafts 4. When dismantling the installation, the rear guard 2 of the hopper 1 is pulled up and back, releasing the movable grill, and all drive shafts 4 they are dismantled together with the common frame from the melting chamber 3 in one go, making its perimeter completely open. The dismantling of paired modules 7 of the drive shafts 4 is carried out by unfastening the hinged bolts 17, - a total of four modules 7, two drive shafts 4 in each, - two bolts for each module.

The design of the installation, which makes it easy to assemble it from individual nodes, ensures its transportation to snow-melting points, as well as, if necessary, to factory repair by small-sized vehicles.

Thus, the proposed installation for preparing snow mass for melting, with a movable lattice frame made in the form of beams with guide grooves equally located in their upper part and hinged mounting bolts in the center of these grooves, as well as pipe ties on nuts connecting the beams to drive shafts of the movable grating, each pair of which forms a rigid module, equipped with support strips interacting with the guide grooves in the upper part of the beams and the possibility of fastening them with the help of hinged bolts in the center call to a common drive shaft to all the mobile frame of the lattice, and wherein the frame itself is set on the perimeter of the melting chamber, - all this allows when compared with known units higher:

- performance;

- bandwidth;

- reliability and durability;

- operational maneuverability,

since each pair of drive shafts forms a rigid module, as well as installing a frame around the perimeter of the melting chamber and mounting drive shafts with hinged bolts.

Claims (1)

Installation for preparing snow mass for melting, containing a receiving hopper mounted above the melting chamber with a movable grate placed on the frame and made of horizontal shafts with disks rigidly fixed on them, evenly spaced along the length of the shaft, and hammers installed between each pair of disks by screw lines along the shaft, and the shafts are installed in rolling bearings located in housings located at the ends of the shaft, while one housing is connected to a gear motor connected to this shaft through an elastic coupling ftu, characterized in that the movable lattice frame is made in the form of beams with guide grooves equally located in their upper part, and hinged bolts in the center of these grooves and pipe ties on the nuts connecting the beams, while each pair of drive shafts is made in the form of a rigid module, bearing housings in which are rigidly interconnected by protective ribs-shields and support strips interacting with their side surfaces with guide grooves of beams with the possibility of fastening with hinged bolts in the centers of these scratch to beams general frame movable grating mounted on the perimeter of the melting chamber.

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