SU877301A1 - Device for transportation of long cylindrical articles - Google Patents

Description

(54) DEVICE FOR MOVING LONG-DIMENSIONAL CYLINDRICAL PRODUCTS

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The invention relates to the field of rolling and heat treatment and can be used to cool long cylindrical articles, for example

A device for moving is known.

Long products in the refrigerator, 5 including shafts with wheels forming transverse streams to rotate long products, and a mechanism transmitting the product from the stream to the stream, made in the form of shaped lifting beams, each of which is inclined planes with stops, the number of which corresponds to the number of. Products are cooled in the process of their rotation in transverse strands and. transfer from a stream to a stream by freely rolling on inclined planes while lifting beams. In this case, the articles roll down along inclined planes to the stops, where they are in a stationary state during their descent into the streams 1.

However, since the process of rolling | 1 while they are being pumped from a stream to a stream, is uncontrollable, which leads to distortions of the products, jumping them over the stops.

pushing together several products with their respective packing in one stream. This, in turn, leads to change; the speed of rolling products, and sometimes to their stops. These deficiencies cause unorganized chaotic movement of products when they are transferred from the stream to the stream, and, consequently, their uneven cooling. The latter circumstance leads to the curvature of products.

When cooling products with a high initial temperature in the process of transferring from a stream to a stream, formation of holes on their surface is possible when the products strike the stops of rolling down the inclined 1M planes, as well as the wheels when they are lowered into the streams., Simultaneous raising and lowering products beams leads to beams strikes on products and products on the wheel, which causes an increase in noise in the workshop, exceeding the sanitary standard.

The closest to the proposed technical essence is a device for moving long cylindrical articles, for example, during heating, containing shafts and supports placed on them:. elements that form transverse handles; transfer, transferring products from brook IB brook in the form of ctoeK with fixed idle rollers (2. 5. The said device is characterized by the unreliability of moving products with rotation when transferring them from brook to brook, which is expressed in the possible movement of products along its longitudinal axis, followed by sticking them either into the flange of the drive edements or into the furnace masonry. This leads to an emergency situation and the device stops. The latter is explained by the fact that it is almost impossible to each stream is at the same depth along its length and all streams of the device as a whole, since the depth adjustment of the stream is carried out by changing the height of each one in the section of the idle roller with two springs, which leads to its distortion.

The purpose of the invention is to increase the reliability of moving products from the stream to the stream.

This goal is achieved by the fact that, in a device for moving long cylindrical articles, for example, during cooling, containing shafts and driving support elements arranged on them, forming transverse streams, and a mechanism for transferring products from a stream to a stream made in the form of racks with idle rollers, the product transfer mechanism is equipped with endless chains, on which racks are embedded, the axes of idle rollers of each rack are parallel to each other and placed in a vertical plane, perpendicular Str molecular endless chain, the diameter of idle rollers decreases as their distance from the chains.

In addition, the supporting elements are made in the form of wheels, sequentially placed along the length of each shaft, with the wheels of adjacent shafts installed with partial overlap. .

FIG. I shows the device for moving, general view; in fig. 2 - 6 - the scheme of the device.

A device for moving long cylindrical articles in a refrigerator includes shafts 1 with wheels 2 supported on lunettes 3 and forming transverse streams, as well as a mechanism for transferring products from a stream to a stream. The latter is made in the form of endless chains 4 with stops, which are strings 5 with idle rollers 6 and 7 in each of them. The axes of the rollers 6 and 7 are parallel to each other on the axles of the wheel shafts I, while the diameter of the rollers 6 and 7 decreases as they move away from the chain 4, depending on the diameter of the shafts I and the wheels 2, and also the range of diameters of the long products 8 being machined The lower roller 6 performs the role of a pusher, the upper roller 7 acts as a limiter contacting

with the product 8, the maximum diameter only when it reaches the top point of the working surface of the wheel 2. The diameters of the rollers 6 and 7 are chosen purely constructively at the already known values of the range of diameters of cooled long products, the diameter of wheels 2 and shafts 1. So, for example, at Wheel diameter 2 600 mm, product diameter 8 mm, diameter of pushing thrust rollers b is

146 mm and limiting rollers 7 - 96 mm. A device for moving long cylindrical articles works as follows.

When the device is turned on, the wheel 2 is rotated, with the product 8

rotate in the streams formed by the wheels 2 for the time specified by their cooling cycle (Fig. 2), then at a speed that determines, according to the same cooling cycle, the transfer time of products from

0 stream in the stream, begin to synchronously move the chain 4 with stops in the form of stools 5 with idle rollers 6 and 7 in each of them (Fig. 3 - -5). As soon as the lower rollers b touch the products 8, an organized forced transverse

5 moving them along the working surface of the wheels 2 by rotation (Figs. 3, 4). As soon as the products, when they are transferred from the stream to the stream, the upper point of the working surface of the wheels (Fig. 5) passes, the weight component of the products appears, allowing them to

0 at some point, tear off the pushing thrust rollers b and roll down on the working surface of the wheels with the same turns (Fig. 5, dashed circles) before contact with moving previous thrust rollers 6. After contacting the products with the previous thrust rollers 6 they are organized rotate, moving on the working surface of the wheels 2 and smoothly (with low noise) are placed in the following streams, where they continue to rotate with the same tiltings during the time provided for by the cooling cycle (Fig. b).

X

The described transfer of products from the stream to the stream occurs simultaneously throughout

5 to the length of the refrigerator due to the synchronous movement of the chains with the stops. As a result, the products are moved through the entire refrigerator, evenly cooled in a given temperature range.

Thus, the proposed device, in comparison with the known ones, allows for organized rotation of products due to the constant contact of the products with the working surface of the wheels when they are transferred from the stream to the stream, during which they reliably rotate with the same

 speed as in creek x. This is achieved by using synchronously moving chains with stops forming seemingly stirring streams with rotating wheels.

the decrease in the depth of which, as products approach the top point of the working surface of the wheels, is compensated by the presence of | Oles of smaller diameter of the mentioned stops. Therefore, reliable product movement is ensured.

The organization of the forced rotation of the products during their transfer to the stream in the stream allows to improve the quality of the products by eliminating their curvature during the cooling process by ensuring its uniformity during the said transfer. In addition, the use of the proposed design of the device for moving due to the smooth, unstressed laying of pipes in streams eliminates the formation of holes on the surface of the pipes when cooled in the high temperature region.

Claims (2)

1. USSR author's certificate number 341848, cl. From 21 D 9/08, 1972. 2. The copyright certificate. USSR № 549483, cl. From 21 D 9/08, 1975 ..