CN201255235Y

CN201255235Y - Integration type shaft mechanical seal device

Info

Publication number: CN201255235Y
Application number: CNU2008202182377U
Authority: CN
Inventors: 高景聪; 毛志刚; 倪宇; 李继明; 李宏明; 张国然; 冯立
Original assignee: Dandong Kelong Group Co Ltd
Current assignee: Dandong Colossus Group Co Ltd; Dandong Kelong Group Co Ltd
Priority date: 2008-09-24
Filing date: 2008-09-24
Publication date: 2009-06-10
Anticipated expiration: 2018-09-24

Abstract

The utility model relates to a mechanical sealing device for an integrated shaft, which consists of an end cover (1), two static ring assemblies (2a,2b), a movable ring (3), a compensation spring (4), a positioning card (8) and movable and static sealing rings (6,7), wherein, the compensation spring (4) is arranged in a spring installation hole (14) and a pin (23) of a static ring seat (22). The sealing end cover (1) and a static ring seat (24) on the outside static ring assembly (2b) are correspondingly provided with a clamp groove hole (18) and a clamp groove (25). The outside static ring assembly (2b) and the sealing end cover (1) are fixed by the positioning card (8), so a mechanical sealing device with a double end surface for the integrated shaft is formed. The mechanical sealing structure has the advantages that the structure is simple, and convenient to machine, manufacture and assemble, the integrated structure is convenient for use and installation, the assembly precision can be ensured, and the damage to the matching end of the movable rings and the static rings is avoided.

Description

Integration type shaft mechanical seal device

Technical field

The utility model relates to shaft sealer, particularly mechanical seal for axle.

Background technique

Mechanical seal for axle is the seal arrangement that rotating ring cooperates with stationary ring under the effect of compensating element, compensating element has spring and bellow type, rotating ring is combined with single end face with stationary ring and cooperates, also there is Double End to cooperate, according to different applying working conditions and performance requirement, concrete structure has nothing in common with each other, and in the prior art, various mechanical seal device is arranged.

Require not really high shaft sealing for sealability, the shaft sealing of no internal pressure, the simplest is to adopt the seal ring sealing, for reaching better sealing effect, then adopt the sealing of mechanical seal device replacement seal circle, the spring type mechanical sealing device that is applied to use in this occasion is to be made of the dynamic and static ring that pair of matched is closed, stationary ring axially slidably is installed on the shaft-cup under stop pin cooperates, between shaft-cup and stationary ring, be provided with counterbalance spring, rotating ring is installed on the axle by rotating seat, and is provided with outer end cap and mechanical seal device is carried out integral installation fixes.The shortcoming deficiency of this prior art structure is, mechanical seal device is that resolution element is assembled on axle and the shaft-cup, the element that is formation mechanical seals such as rotating ring, stationary ring, counterbalance spring will be installed at the scene, because the cooperation of mechanical seal device requires high, this field-mounted process is not only operated inconvenience, and be not easy to guarantee installation precision, and in installation process, also cause the damage of dynamic and static ring abutting end easily, influence sealability.

The model utility content

The purpose of this utility model provides a kind of simple in structure, good airproof performance, integration type shaft mechanical seal device easy for installation.

The utility model is by end cover, two static components, a rotating ring, counterbalance spring, positioning cards, and the dynamic and static ring sealing circle constitutes, on the stopping table interior edge face of end cover, offer spring mounting hole, on the stationary seat of the static components that is installed in the end cover inboard, be provided with pin, counterbalance spring place in the spring mounting hole and the stationary seat pin on, another static components cooperates installation by its stationary seat with the external port of end cover, rotating ring is installed in the centre of two static components, forming the Double End rubbing surface cooperates, on the stationary seat outer shroud of outside static components, be provided with seal ring, on the interior ring of rotating ring, be provided with seal ring, on end cover, have the draw-in groove hole, correspondence has draw-in groove on the stationary seat outer shroud of outside static components, positioning cards is installed in this draw-in groove hole and the draw-in groove, outside static components and end cover are fixed, be about to rotating ring, two stationary rings, the double end-face mechanical sealing device collection that counterbalance spring constitutes is contained in the end cover.

The utility model is simple in structure, is convenient to manufacturing and assembling, double density end-blocking good airproof performance, and its unit loading type constitutes, and guarantees installation precision, and installation easy to use can not cause the damage of dynamic and static ring abutting end, and is easy to install.

Description of drawings

Fig. 1 is the utility model example structure schematic representation.

Fig. 2 is the right elevation of Fig. 1.

Embodiment

The utility model is by end cover 1, two static components 2a, 2b, a rotating ring 3, counterbalance spring 4, positioning cards 8, dynamic and static ring sealing circle 6,7 constitute, on the stopping table interior edge face 10 of end cover 1, offer spring mounting hole 14, on the stationary seat 22 of static components 2a, be provided with pin 23, counterbalance spring 4 places on spring mounting hole interior 14 and stationary seat 22 pins 23, another static components 2b cooperates installation by its stationary seat 24 with the seam external port of end cover 1, rotating ring 3 is installed in two static components 2a, the centre of 2b, forming the Double End rubbing surface cooperates, on stationary seat 24 outer shrouds of outside static components 2b, be provided with seal ring 7, on the interior ring of rotating ring 3, be provided with seal ring 6, on end cover 1, distribute and have draw-in groove hole 18, correspondence has draw-in groove 25 on stationary seat 24 outer shrouds of outside static components 2b, positioning cards 8 is inserted and is installed in this slotted eye 18 and the draw-in groove 25, outside static components 2b and end cover 1 is fixing, with rotating ring 3, two stationary ring 2a, 2b, counterbalance spring 4 collection dress sealings are installed in the end cover 1.Offer convex arc 81 on the positioning cards 8, fixing in the slotted eye 18 of card 8 on end cover 1 by convex arc 81 extruding.

Claims

1, integration type shaft mechanical seal device, it is characterized in that by end cover (1), two static components (2a, 2b), a rotating ring (3), counterbalance spring (4), positioning cards (8), dynamic and static ring sealing circle (6,7) constitute, on the stopping table interior edge face (10) of end cover (1), offer spring mounting hole (14), on the stationary seat (22) of static components (2a), be provided with pin (23), counterbalance spring (4) places on spring mounting hole interior (14) and stationary seat (22) pin (23), another static components (2b) cooperates installation by its stationary seat (24) with the seam external port of end cover (1), rotating ring (3) is installed in two static components (2a, centre 2b), forming the Double End rubbing surface cooperates, on stationary seat (24) outer shroud of outside static components (2b), be provided with seal ring (7), on the interior ring of rotating ring (3), be provided with seal ring (6), go up distribution at end cover (1) and have draw-in groove hole (18), correspondence has draw-in groove (25) on stationary seat (24) outer shroud of outside static components (2b), positioning cards (8) is inserted and is installed in this draw-in groove hole (18) and the draw-in groove (25), outside static components (2b) and end cover (1) is fixing, with rotating ring (3), two stationary ring (2a, 2b), the sealing of counterbalance spring (4) collection dress is installed in the end cover (1).

2, integration type shaft mechanical seal device according to claim 1 is characterized in that offering on the positioning cards (8) convex arc (81), and is fixing by convex arc (81) extruding in the slotted eye (18) of card (8) on end cover (1).