RU2495188C1 - Device to prepare snow mass for melting - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: plant for snow mass preparation for melting differs by the fact that a frame common for all sections rests directly onto the melting chamber perimeter, and a movable grid at the same time is made of horizontal shafts assembled into a section with the help of planks and installed along the melting chamber perimeter, with continuous connection of shafts with individual electric drives and their uninterrupted rotation.

EFFECT: invention makes it possible to create a plant, which makes it possible to increase its liability and durability during operation, to reduce labour intensiveness of operations related to completion of regulatory works and maintenance of sewage equipment of a melting chamber, and also to exclude fastening elements that press bodies of shafts to frames of sections, as the frames themselves, which helps to increase efficiency of a plant and makes the process of mixing and sifting of snow and ice mass more efficient.

6 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, E01H 5/10, publ. 05.08.2004). The movable lattice is made of horizontal horizontal drive shafts mounted perpendicular to the hopper loading direction with disks rigidly fixed uniformly along the shaft length, 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 bearings of which are made integrally with a 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 grill mounted above the melting chamber (patent No. 67595, E01H 5/10, publ. 10.27.2007). The movable grill 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 disks rigidly fixed and evenly mounted along the shaft length, between each pair of which hammers are screwed. The shafts are mounted on rolling bearings in housings located at the ends of each shaft; moreover, one of the housings is connected via a cup to a corresponding gear motor and the bearing housings in their lower part are made with double-sided wedge surfaces installed in common for each section, consisting of four rotors, the frame and fastened with it by four hinged bolts placed in the grooves of these buildings. The whole installation consists of two sections, each of which contains one frame common to four drive shafts, while the frames themselves are made with bilateral wedge surfaces and are mounted on two beams permanently fixed inside the melting chamber.

Such a design of the installation complicates maneuverability during operation, and the constant presence of two support beams in the melting chamber worsens the processes of mixing, sifting and melting of the snow mass, as well as the conditions and quality of routine cleaning work during the inter-operational periods, complicates the maintenance and revision of sewer equipment cameras.

In addition, the presence of hinged bolts and clamping nuts requires constant revision and repair, and the bolts themselves, as well as the nuts pressing the bearing housings to the section frames, are subject to constant exposure to aggressive media, which leads to their corrosion, especially in the hinged joints of the hinged bolts with the frame section, and, therefore, premature failure.

The technical result of the present invention is to provide an installation that improves its reliability and durability, maneuverability during operation, as well as productivity, significantly improves the processes of mixing, sifting and melting snow mass, the quality of routine maintenance and maintenance of the sewer equipment of the melting chamber, and also exclude fasteners , pressing the bearing housings to the frames of the sections, as well as the frames of the sections themselves.

The technical result achieved is achieved by the fact that in the installation for preparing snow mass for melting, each of the 2 sections of the movable lattice, the bearing housings in which are connected by special bars with bolts through the holes in the bearing caps of these housings located at the ends of each of shafts, is mounted on a frame common to the entire melting chamber, resting directly on the walls of this melting chamber with paws rigidly connected to the common frame, and the function of guides in the grooves of 2 adjacent buildings bearings for each section perform special protrusions made from 2 sides on each of the paws.

It should be noted that the rotation of each drive shaft is transmitted through a gear motor located cantilever on this shaft, and the gear cases in each section are interconnected by an elastic mechanical connection.

When dismantling, two sections with drive shafts are simply lifted by a crane together with a frame common for 2 sections of drive shafts for the rigging holes in the legs of the frame, completely freeing the perimeter of the melting chamber.

Such a design of the installation significantly increases the efficiency of its operation.

An example implementation of the invention is shown in figure 1 ... 6, where:

figure 1 - shows a General view of the installation;

figure 2 is a view a of figure 1;

figure 3 is a section bB of figure 2;

figure 4 - shows a section of 4 drive shafts connected through bearing housings with special strips;

figure 5 is a section bb In figure 4;

figure 6 - shows a common frame for 2 sections of drive shafts.

The installation for preparing snow mass for melting consists of a hopper 1 with a movable grate made of horizontal drive shafts 2 mounted above the melting chamber 3. On the drive shafts 2, disks 4 are rigidly fixed along the length of each shaft, hammers 5 are also rigidly fixed between each pair forming a helical line relative to the shaft 2. Each shaft 2 contains bearing housings 6 located at its ends, and on the one hand behind the bearing housing 6 is located the housing of the corresponding gear motor 7, transmitting expanding the shaft 2 directly from the drive shaft 8 of the gearmotor 7 mounted cantilever on the same shaft 2. The bearing housings 6 are interconnected through holes in the bearing caps with special strips 9 and 10. Each four drive shafts 2 are interconnected through the bearing housings 6 by strips 9, 10, form a section of shafts 2, in which the housings of the corresponding gear motors 7 are interconnected by an elastic mechanical connection 11. Each of the sections of shafts 2 is mounted on a frame 12 common to the sections, supported by paws 13 on the melt walls Flax chambers 3, wherein each of the clutches 13 contains special ledges 14 which are guide grooves for 15 formed in the bearing housings 6 for folding bolts.

Installation works as follows.

Snow and ice falls on the rotating shafts 2 of the movable grating, which, with the help of hammers 5, crush them into fragments that fall between the shafts 2 with the disks 4 rigidly fixed on them into the melting chamber 3. When dismantling the unit, two sections of the drive shafts 2 together with their common frame 12 for the lifting holes 16 in the legs 13 are easily lifted by a crane from the melting chamber 3, completely freeing its perimeter.

The design of the installation makes it easy to dismantle it from the melting chamber, completely freeing its perimeter, and, if necessary, it is also easy to dismantle the drive shaft sections themselves and their further transportation by small vehicles, which is undoubtedly relevant in a large city.

Thus, the proposed installation for preparing snow mass for melting, with sections of drive shafts assembled using special slats and installed on a common frame for 2 sections of a movable grate, based directly on the perimeter of the melting chamber, all this allows, in comparison with known settings, higher:

- performance;

- bandwidth;

- reliability and durability;

- operational maneuverability.

Claims (1)

Installation for preparing snow mass for melting, containing a receiving hopper mounted above the melting chamber with a movable grate made of horizontally mounted shafts, each of which is connected to an individual drive in the form of a reversible gear motor mounted cantilever on this shaft, and is rigidly fixed and disks evenly mounted on the shaft, between each pair of which hammers are fixed along a helix along the shaft length, the shafts being parallel to the hopper loading direction and installed Lena on rolling bearings in housings located at the ends of each shaft, characterized in that the bearing housings of each of the shaft sections are fastened together by strips that ensure the interaction of grooves made in these housings under previously dismantled folding bolts and special protrusions on the legs common to all sections of the frame, based on the perimeter of the melting chamber, while the movable lattice is installed around this perimeter.

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