SU1339059A1 - Metallic container - Google Patents

Abstract

The invention relates to containers of piece goods. The purpose of the invention is to improve working conditions by reducing radiated noise. The device comprises metal walls 1, a bottom with lower 2 and perforated upper 3 floorings, damped with springs or gaskets 4, in space 5 a shock-absorbing insert 6 is installed, made of alternating horizontal vibration absorbers and anti-vibration layers. The end surfaces 9 of the cushioning insert 6 are concave. The cushioning insert 6 is enclosed along the perimeter of the partitions 10, forming a labyrinth. 2 Il. (L oe co w e ate

Description

The invention relates to containers for piece goods and can be used in the production workshops of engineering and other enterprises.

The aim of the invention is to improve working conditions by reducing radiated noise.

In Fig.1, a container is given, a longitudinal Hbrti section; figure 2 - node I and figure 1,

The metal container contains walls 1 and the bottom in the form of a two-pan pallet with the bottom 2 and top 3 decks. The flooring 3 is damped by gaskets 4. In the space 5 between the floorings 2 and 3, an insert 6 is installed with concave ends, made of alternating tsix horizontal vibration-absorbing 7 and vibration-isolating 8 layers. Vibration-absorbing layers 7 are one more than layers 8, and the outermost ones (upper and lower) are in contact with floorings 2 and 3, respectively.

End surfaces 9 inserts 6 concave.

Box 6 is enclosed along the perimeter of the partitions 10, forming a labyrinth (an open volume with gaps between the partitions 10 and the decks 2 and 3, the value of which is equal to

 h - h.

where 2 and

h - 3,

distance height

all between

distilling springs).

Holes 11 are made in the upper deck 3, the pitch t and the diameter d of which vary monotonically from the edges of the insert 6 to the periphery of the deck.

The installation in space is tight between the floorings in the center of the insert containing alternating horizontal vibration-isolating and vibration-absorbing layers, of which vibration-absorbing one is larger, ensures contact of the extreme (lower and upper) vibration-absorbing layers with the floorings and high efficiency of energy absorption of flexural vibrations that occur when a loaded Plastic products with walls and bottom of the container and causing intense noise to the environment, thereby improving working conditions.

The presence of a vibration-proof layer in the cushioning insert localizes the source of sound vibrations and prevents the transfer of vibrational energy between the floorings, thereby reducing noise by reducing the area of noise-emitting surfaces, which leads to improved working conditions.

Execution of the lateral end surfaces of the cushioning insert

0 concave eliminates the negative effect of the edge effect on the magnitude of vibration absorption and increases the noise attenuation, which also improves working conditions.

5 Placement of a cushioning insert in enclosures that form an open volume, with a gap with the floorings (i.e., made with a height less than the gap between the floorings), in combination

0 with perforation of the upper deck with a variable pitch and with varying diameter of the holes from the edges of the shock-absorbing insert to the periphery, expands the range of resonant frequencies

5 of the sound-absorbing structure formed by the lower and upper perforated flooring, shock-absorbing insert and fences, and increases the efficiency of noise reduction, improving working conditions.

The metal container operates as follows.

When the container is loaded, the pieces collide with the walls 1

5 and the upper flooring 3, exciting in them and in the lower flooring 2 bending oscillations in the main mode with increased deformations in the center of the floorings 2 and 3, causing deformation in the extreme horizontal vibration-absorbing layers 7 of the insert 6 adjacent to them and ensuring effective absorption vibrational energy.

Claims (1)

5 claims A metal container containing walls and a two-thread bottom, characterized in that In order to improve working conditions by reducing the radiated noise when loading, an insert with concave ends is installed in the space between the decks, consisting of alternating vibration-proof and vibration-absorbing horizontal layers, with vibration-absorbing layers one more than vibration-proof, and on both sides of the insert the upper and lower 1339059- The flooring has a diameter-partition and the pitch of which is monotonously measuring, forming a labyrinth, and the holes, the flooring, extend from the edges of the insert to the periphery of the upper flooring. tfj Editor V.Danko Compiled by A. Bugayev Tehred M. Khodanych Order 4178/14 Circulation 640 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Fig2 Proofreader M.Sharopsh