CN201170314Y

CN201170314Y - Mechanical sealing device for side-installed type stirrer

Info

Publication number: CN201170314Y
Application number: CNU2008200622550U
Authority: CN
Inventors: 鲁志明
Original assignee: ZIGONG ZHAOQIANG SEALING PRODUCT INDUSTRY Co Ltd
Current assignee: ZIGONG ZHAOQIANG SEALING PRODUCT INDUSTRY Co Ltd
Priority date: 2008-02-21
Filing date: 2008-02-21
Publication date: 2008-12-24
Anticipated expiration: 2018-02-21

Abstract

The utility model discloses a mechanical sealing device of a side-mounted stirrer, comprising a sealing cavity, a sealing cavity cover, a rotating shaft, a shaft bushing, a spring seat component, a rotor ring, a stator ring, a stop pin arranged inside a pin hole on the rotor ring, and an O-shaped sealing ring on the rotating shaft. The mechanical sealing device is characterized in that a bearing is arranged outside the rotating shaft and inside the space of the sealing cavity body and the sealing cavity cover. As further improvement of the mechanical sealing device, the pin hole on the rotor ring is a through hole; and the O-shaped sealing ring is arranged at the position where a stirring blade is arranged on the shaft bushing. The mechanical sealing device greatly reduces the radial runout of the rotating shaft, thereby reducing the abrasion of each element and has the advantages of good radiating effect and low possibility of leakage.

Description

The mechanical seal device of side-mounted stirrer

Technical field

The utility model relates to a kind of mechanical seal device that is used for side-mounted stirrer.

Background technique

The mechanical seal device that now is used for side-mounted stirrer, comprise seal chamber, Seal cage lid, rotating shaft, axle sleeve, spring seat assembly, rotating ring, stationary ring, be arranged at stop pin in the pin-and-hole and the O-ring seals in the rotating shaft etc. on the rotating ring, stop pin is used to connect axle sleeve and rotating ring, and mixing blade is installed on the axle sleeve; The seal arrangement of this structure has following shortcoming: because circular runout easily takes place in rotating shaft, cause noise wearing and tearing big, each part very fast when 1) working, working life is shorter; 2) pin-and-hole on the rotating ring is a blind hole, makes the medium in the sealing surface be difficult for flowing, and thermal diffusivity is relatively poor; 3) the suffered pressure of the O-ring seals in the rotating shaft is bigger, easily leaks.

The model utility content

The purpose of this utility model is the above-mentioned deficiency at prior art, provide a kind of mechanical seal device of side-mounted stirrer, thereby the circular runout that can reduce rotating shaft greatly reduces the wearing and tearing of each part and has good heat dissipation effect, the difficult advantage that leakage takes place.

For achieving the above object, the mechanical seal device of side-mounted stirrer of the present utility model, comprise seal chamber, Seal cage lid, rotating shaft, axle sleeve, spring seat assembly, rotating ring, stationary ring, be arranged at stop pin in the pin-and-hole and the O-ring seals in the rotating shaft etc. on the rotating ring, it is characterized in that outside rotating shaft, the space in seal chamber and the Seal cage lid is provided with bearing; This bearing can reduce the circular runout of rotating shaft greatly during work, thereby reduces the wearing and tearing that noise reduces each part, increases the service life;

As further improvement of the utility model, the pin-and-hole on the rotating ring is a through hole, can make easier the flowing of medium in the sealing surface, improves thermal diffusivity;

As further improvement of the utility model, the mixing blade place is installed on axle sleeve is provided with O-ring seals, can reduce the pressure that O-ring seals bore in the rotating shaft, prevent leakage;

In sum, thus the utility model can reduce the advantage that the circular runout of rotating shaft reduces the wearing and tearing of each part and has good heat dissipation effect, be difficult for to take place leaks greatly.

Description of drawings

Fig. 1 is the utility model embodiment's a plan view.

Embodiment

Below in conjunction with accompanying drawing the utility model is further specified.

By shown in Figure 1, the mechanical seal device of the utility model embodiment's side-mounted stirrer, comprise seal chamber 1, Seal cage lid 2, rotating shaft 3, axle sleeve 4, spring seat assembly 5, rotating ring 6, stationary ring 7, be arranged at O-ring seals 9 in stop pin in the pin-and-hole 8 on the rotating ring 6 and the rotating shaft 3 etc., space outside rotating shaft 3, in seal chamber 1 and the Seal cage lid 2 is provided with bearing 10, pin-and-hole on the rotating ring 6 is a through hole, mixing blade 12 places is installed on axle sleeve 4 is provided with O-ring seals 11.

Claims

1. the mechanical seal device of a side-mounted stirrer, comprise seal chamber, Seal cage lid, rotating shaft, axle sleeve, spring seat assembly, rotating ring, stationary ring, be arranged at stop pin in the pin-and-hole and the O-ring seals in the rotating shaft etc. on the rotating ring, it is characterized in that outside rotating shaft, the space in seal chamber and the Seal cage lid is provided with bearing.

2. the mechanical seal device of side-mounted stirrer according to claim 1 is characterized in that the pin-and-hole on the rotating ring is a through hole.

3. the mechanical seal device of side-mounted stirrer according to claim 1 and 2 is characterized in that installing the mixing blade place and is provided with O-ring seals on axle sleeve.