SU1229487A1 - Method of installing end seal on apparatus shaft - Google Patents

Abstract

1. A mechanical seal including a carrier sleeve associated with a rotating shaft, fixed and movable friction contact rings mounted on the sleeve and in the seal housing, characterized in that, in order to increase the reliability of the seal by eliminating the deformation of the bearing sleeve during operation and ensuring concentricity of friction pairs, it is equipped with a compensation sleeve, mounted on the shaft with the possibility of movement along the bearing sleeve, sealed along the shaft and the bearing sleeve and having an annular a protrusion mating with the mounting surface of the cylindrical seal body. i (L. Г5 Is9 N9; О 4 00 Fig. 1

Description

2. The method of installation of the mechanical seal on the shaft of the apparatus, including mounting the seal on the landing zone of the fork and fixing it on the flange of the apparatus, characterized in that before fixing the seal on the flange of the apparatus on the carrier sleeve, set the compensation sleeve to

The invention relates to conventional techniques, in particular, to mechanical seals of apparatus shafts, and can be used in the chemical and other industries.

The purpose of the invention is to increase the reliability of the compaction by eliminating the deformation of the bearing sleeve during operation and ensuring the concentricity of the friction pairs.

Figure 1 shows the seal mounted on the shaft in the working position; figure 2 - the same, when assembling and installing on the shaft; in fig. 3 and 4 are options for installing a seal on a smooth shaft.

The seal consists of a seal housing 2 installed on the flange 1 with a lid 3 in which there are fixed rings 4 sealing face pairs of friction, fixed from rotation by pin 5 and sealed on the housing with rubber rings 6, and also mounted springs 7, pressing the fixed rings against the movable a ring 8 mounted on a carrier sleeve 9, covering the shaft 10, and a nut 11 secured thereto through the sleeve 12 and a rubber ring 13. The bearing sleeve is fixed from the gate on the shaft with a pin 14. On the shaft there is a screw with a compensation set union sleeve 15 imeyu1tsa annular protrusion 16 which is wrapped around the carrier sleeve and is mounted on the mating seat surface with its carrier sleeve 17 and mounting surface 18 of the housing and a locking screw 19

strapping its collar with an installation cylindrical povarnost seals and fix them in this position, and after fixing the seal on the flange of the apparatus loosen the locking elements of the compensation sleeve and move it all the way into the collar of the shaft or the stop ring.

, 2

Sealing rings 20 and 21 are installed between the shaft and the compensation and bearing bushings. When installing the seal on a smooth shaft

it is provided with a special stop ring 22 fixed on the shaft or means of rigid mounting on the shaft of the compensation sleeve, for example a stop screw 23.

U1hpolozhenie works as follows.

The sealing of the shaft of the apparatus is carried out by fixed 4 and movable 8 rings of sealing face pairs of friction. When the seal is working, the compensation sleeve 15 takes the pressure of the medium in the apparatus and transfers the force from the pressure of the medium to the shaft 10,

thereby, the carrier sleeve 9 from the action of axial forces from the pressure of the medium and excluding its deformation.

The method of installing the seal on the shaft of the apparatus is carried out as follows.

The assembled seal is placed on the landing zone of the shaft 10, on the carrier sleeve 9 install the compensation sleeve 15, providing

mating the annular protrusion 16 of the compensation sleeve to the mounting surface 18 of the housing 2, fix these elements with locking screws 19, then install the seal on the shaft 10 and the device’s flange 1, firmly, and seal the body 2 of the seal on the flange 5 to relax the locking elements of the movement sleeve and move it all the way into the shoulder of the shaft or stubborn

ring 22, thereby ensuring the installation of the JcoHueHTpH4HocTb friction pairs.

sixteen

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FIG. 2

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Compiled by G. Shchurenko Editor N. Dankulich Tehred V. Kadar Proofreader E. Snrohman

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Order 2437/35 Circulation 880 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

Claims (2)

FACE SEAL AND METHOD OF ITS INSTALLATION ON THE UNIT SHAFT. mounted on the sleeve and in the seal housing, characterized in that, in order to increase the reliability of the seal by eliminating the deformation of the bearing sleeve during operation and ensuring concentricity of the friction pairs, it is equipped with a compensation sleeve mounted on the shaft with the ability to move along the bearing sleeve sealed on the shaft and the bearing sleeve and _t having on the outer surface 1 an annular protrusion mating with the mounting cylindrical surface of the seal housing. FIG. one 29487 2. A method of installing a mechanical seal on the shaft of the apparatus, including mounting the seal on the landing area of the shaft and securing it on the apparatus flange, characterized in that, before fixing the seal on the apparatus flange on the carrier sleeve, set the compensation sleeve in its engaged position. installation cylindrical surface of the seal housing and fix them. in this position, and after fixing the seal on the flange of the apparatus, the locking elements of the compensation sleeve are loosened and they are moved all the way into the shaft shoulder or thrust ring.