SU1747571A1 - Shaft of finishing and paper-making machines - Google Patents

Abstract

Using; in the dyeing and finishing production of the textile industry. SUMMARY OF THE INVENTION: The shaft has a jacket that is mounted on two cartridges. The first cartridge has the capability of force interaction at one end of the core by means of a working medium pressure transducer supplied through the mechanical seal to a force. The other end of the core is in contact with the second cartridge. 2 hp ff, 2 ill.

Description

The invention relates to working bodies of roller devices that use a uniformly distributed load in the processing of lengthy tape materials in the dyeing and finishing industry of the textile industry, in the production of artificial leather and film materials, in the production of paper.

Constructions are known that contain a working chamber made of a hollow, rotatable body and a fixed core of the I-section with the possibility of creating hydrostatic pressure in it between the jacket and the core by means of mechanical seals and a hydraulic system with a hydraulic pump.

The disadvantages of these shafts are the significant loads transmitted to the bearing supports, the high intensity of metal, the complexity of manufacturing and the high cost of operation.

Closest to the present invention is a shaft for finishing and papermaking machines containing a thin-walled jacket mounted on cartridges located at its ends, a core having a length less than the length of a shirt and mounted in supporting elements with the possibility of axial movement for force engagement with the end face of one of the cartridges.

The purpose of the invention is to increase the uniform distribution of the technological load across the working width of the shaft, reduce the metal structure, improve performance.

FIG. 1 shows a structural diagram of a shaft operating on a tension; in fig. 2 shows a shaft diagram using an elastic converter in the form of a bellows.

Vj

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The shaft contains a thin-walled shirt 1, mounted on the cartridges 2 and 3, located on the ends of the shirt 1.

In the cavity of the shirt is placed core 4, having a length less than the length of the shirt. The core is installed in the support element with the ability to interact with the end face of the cartridge 2. Between the cartridge 3 and the support element 5, means for axial movement of the core 1 and representing a pressure converter to force connected to the second end of the core are located.

The pressure transducer can be made in the form of a bellows, connected to the working medium supply system (Fig. 1), or in the form of a slider 7 (Fig. 2), which is also movable via the working medium supplied through the mechanical seal 8.

Shaft works as follows. The thin-walled jacket 1, which perceives a uniformly distributed transverse load q and is mounted on the chucks 2 and 3 located in the supports, is in a complex tension (complicated) state, having experienced transverse bending due to the load q and stretching (compression) caused by force interaction the core 4 with the cartridge 2 and creating a tensile (compressive) force P due to the supply to the converter 6 and 7 of the working medium (for example, mineral oil), which is under an overpressure p, while

R p-5Ef,

where 5Ef is the effective surface area of the converter.

Because of this, the transverse rigidity of the structure changes, providing a given amount of its lateral deformation depending on the pressure p of the working medium in the circulation system.

The circulation of the working medium is provided by means of the mechanical seal 8, which mates with the rotating hollow pin of the cartridge 3 and the fixed elements of its supply system.

The use of the proposed shaft in comparison with the known ones allows the uniform impact of the shafts on the material being processed across its width by flexible adjustment of the amount of lateral deformation of the working shaft.

part of the shaft due to the change in the magnitude of the acting axial force, due to the value of the pressure of the working medium supplied in the converter.

Higher indicators of technological design, due to the possibility of smooth adjustment of the technological parameters of the roller device, provide uniform

the distribution of the residual moisture of the canvas across its width by smoothly changing the magnitude of the axial force due to the possibility of using shafts in complexes with automated control

technological processing of materials by pressure, implementing an iterative relationship.

Claims (3)

1. The shaft for finishing and papermaking machines, containing a thin-walled shirt mounted on the cartridges located at its ends, the core, having a length less than the length of the shirt and mounted in the supporting elements with the possibility of axial movement for force engagement with the end of one of the cartridges, characterized in that in order to increase the uniform distribution of technological load and operational characteristics, it has a means for axial movement of the core, placed between the second cartridge and the supporting element, which is a pressure to pressure transducer connected to the second end of the core. 2. Val according to claim 1, in accordance with the fact that the pressure-to-force transducer is designed in the form of a bellows connected to the working medium supply system. 3. V of claim 1, characterized in that the pressure-to-force transducer is designed in the form of a slide mounted for movement by means of a working medium.  V ei UMUI IIIUlll 111ПЯ I HI. | Ffl g  , W) L ,one  1Y / JtLJ.J j Ji T P Sssssssssss FIG L 5 P.1 i / / / / Z 11A ™ D-gz Y5 HCC HHH. Well LA 01 / 2.2