SU1590785A1 - Shaft sealing and thrust assembly - Google Patents

Abstract

The invention can be used for sealing and lubrication of bearings in the drives of machines and mechanisms operating in vapor-gas environments. The purpose of the invention is to improve the reliability of the sealing-bearing unit of the shaft at high environmental temperatures. Case 1 covers the bearing 2. The sources of the magnetic field are installed opposite poles towards each other. Non-magnetic liners 3.4 are installed along the ends of housing 1. The sources of the magnetic field are made in the form of individual permanent magnets located in liners 3.4 with the possibility of dismantling. The number of magnets is different. The housing 1 is made of ferromagnetic material. When the shaft rotates, the magnetic fluxes create in the working gaps the gradient magnetic forces that hold the magnetic-liquid tube there. By changing the number of magnets in the liners 3.4, the ratio of the magnetic flux is changed. 2 Il.

Description

1

The invention relates to a sealing technique and can be used | It was called for the gerization and lubrication of under-ipnikov in the drives of machines and mechanics working in steam-gas environments.

The aim of the invention is to increase the reliability of operation of the assembly at high ambient temperatures due to the possibility of changing the lubricant in the friction zone by adjusting the magnitude of the magnetic flux passing through the bearing

Figo depicts an intuitive | shaft support unit, a slit; in FIGs 2-15 Isection A-A in FIG. 1. The I shaft support unit, for example, a drying drum, contains a housing 1 made of ferromagnetic material, in which a bearing is mounted 20 ° to the ends of the housing 1, sources of a magnetic field are attached, each of which contains a non-magnetic field. Guitar insert 3 or 4, in the sockets of which I are placed permanent magnets 6 in the form of disks, plates or rings, and protective covers 7 and 8, which are used; used as pole gears. Magnetic fluid 9, which is enclosed in a closed volume and washed with a sealed shaft, is both simultaneous and bearing lubricant I When the shaft rotates, the magnetic fluxes ip and P created by constant: magnets, short circuit on the way, protective covers 35 and 7 and 8 — housing 1 — the sealed shaft creates in the working gaps S gradient magnetic forces that hold the magnetic fluid

1590785

plug, thereby sealing the bearing. Due to the fact that the flows (, and (p are different from each other because of the different number of magnets in the inserts 7 and 8, for example, P-), the resulting flow P closes through the bearing If 2.

 (R

NICK creates gradient magnetic forces that keep the magnetic fluid in the zone of contact between the ball and collars, lubricates the bearing. You know the operating conditions, you can choose the flow ratio ip and P by changing the number of magnets in the liner so as to create the most favorable conditions of the node in whole

25

Formula

the invention

Seal-supporting shaft assembly containing a housing enclosing the bearing, sources of a magnetic field installed oppositely opposite poles, and a magnetic fluid in the working clearances, so that, in order to increase reliability of the node at high ambient temperatures, it is equipped with non-magnetic liners installed on the ends of the case, the sources of the magnetic field are made in the form of individual permanent magnets installed in the liners with the possibility of dismantling, while the number of mag itov in vkladsh ah time personally, and the housing is made of a ferromagnetic-magnetic material

plug, thereby sealing the bearing. Due to the fact that the flows (, and (p are different from each other due to the different number of magnets in the inserts 7 and 8, for example, P-, then the resulting flow P closes through the bearing If 2.

 (R

NICK creates gradient magnetic forces that keep the magnetic fluid in the zone of contact of the ball with the sleeves, lubricates the bearing. Operating conditions, you can choose the flow ratio ip and P by changing the number of magnets in the liner so as to create the most favorable conditions of the node in whole

Formula

the invention

Seal-supporting shaft assembly containing a housing enclosing the bearing, sources of a magnetic field installed oppositely opposite poles, and a magnetic fluid in the working clearances, so that, in order to increase reliability of the node at high ambient temperatures, it is equipped with non-magnetic liners installed on the ends of the case, the sources of the magnetic field are made in the form of individual permanent magnets installed in the liners with the possibility of dismantling, while the number of mag itov in vkladsh ah varies and the housing is made of a ferromagnetic material

FIG. 2

Claims (1)

Claim The shaft sealing and bearing assembly, comprising a housing enclosing the bearing, magnetic field sources mounted opposite by poles facing each other, and magnetic fluid in the working gaps, characterized in that, in order to increase the reliability of the assembly at high ambient temperatures, it is equipped with non-magnetic inserts installed at the ends of the housing, the magnetic field sources are made in the form of separate permanent magnets installed in the inserts with the possibility of dismantling, while the number of magnets in the treasures are different, and the body is made of ferromagnetic material.