CN2174595Y

CN2174595Y - Mechanical seal

Info

Publication number: CN2174595Y
Application number: CN 93213897
Authority: CN
Inventors: 石富江
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-28
Filing date: 1993-05-28
Publication date: 1994-08-17
Anticipated expiration: 2003-05-28

Abstract

The utility model provides a mechanical seal, which is mainly composed of a moving ring assembly and a stationary ring assembly. The utility model is characterized in that the members of both heads of a spring (1d) of the moving ring assembly are connected with a clamping hook or a bayonet to drive. The members of both heads of the spring (1d) of the moving ring assembly of the utility model can be preliminarily provided with an integrated assembly of no dispersing, so that the utility model is convenient of disassembly. In addition, the utility model, which is easy to be designed into various concrete structural forms, has the advantages of bidirectional drive, small radial dimension, compact structure, hardness, and reliability, and is suitable for matching with various pumps and autoclaves.

Description

Mechanical seal

The utility model relates to the mechanical seal field, more particularly relates to a kind of mechanical seal device.

In traditional mechanical seal device, the kind of drive of rotating ring mainly contains spring transmission, drive sleeve transmission, shift fork transmission, screw transmission and key or pin transmission.Because the mechanical seal device of these kinds of drive is only noticed the transmission of moment of torsion, and ignored the axial limiting of off working state when structural design, therefore whole moving ring assembly all is axial straight cutting assembly structure, and the containerization degree is poor, is not easy to install and use.

In view of the above-mentioned deficiency of existing in prior technology, the purpose of this utility model provides a kind of mechanical seal device with moving ring assembly of containerized card type transmission.

To achieve these goals, technical solution of the present utility model mainly is made up of moving ring assembly and static components, it is characterized in that in the described moving ring assembly, and the member at spring two adopts grab to connect transmission or bayonet socket connects transmission.

The utility model has the advantages that: the member at moving ring assembly medi-spring two adopts grab to connect or bayonet socket connects, so the member at spring and its two can be dressed up a containerization assembly that does not loose in advance and be convenient to installing/dismounting.In addition, the utility model also has and allows two-way transmission, and radial dimension is little, compact structure, solid reliable advantage.

Below in conjunction with drawings and Examples the utility model is explained in further detail, so that the public further understands the purpose of this utility model, effect and effect, grasp better and implement technological means of the present utility model, but other derivative strucure of the present utility model is not limit by described embodiment.

Description of drawings

Fig. 1 is the structural representation of the embodiment of a kind of non-equilibrium, big spring of the utility model, interior dress, rotary structure;

Fig. 2 be the A of Fig. 1 to view, demonstrate the grab annexation of spring seat and throw-out collar among the figure;

Fig. 3 is the B of Fig. 1---the B sectional view demonstrates the annexation of throw-out collar and rotating ring among the figure;

Fig. 4 is a kind of structural representation that overlaps the transmission embodiment of the present utility model;

Fig. 5 is that the K of Fig. 4 is to view;

Fig. 6 is the structural representation of another kind of cover transmission embodiment of the present utility model;

Numbering title 1a-spring seat among Fig. 1 to Fig. 6,1b-throw-out collar, 1c-rotating ring, 1d-spring, 1e-seal ring, 1f-screw, 1g-pin, 2a-stationary ring, 2b-seal ring, 2c-pin, 3a-gland, 3b-screw, 3c-casing, 3d-seal ring;

Solid line partly is the utility model among Fig. 1 to Fig. 6, and double dot dash line partly is the component that are used with the utility model.

Embodiment 1

Present embodiment is the concrete structure that can be used for the main shaft seal of III or IS pump.

See figures.1.and.2, spring seat (1a) and throw-out collar (1b) are along the relative respectively thin walled cylinder that extends in the spring (1d), and the end of thin walled cylinder is respectively equipped with the grab of clasp joint transmission mutually.

With reference to Fig. 1 and Fig. 3, be respectively equipped with tooth or groove, transmission on throw-out collar (1b) and the contacted end face of rotating ring (1c) by means of the mutual chimeric of alveolus.

Referring to Fig. 1 and Fig. 2, during preassembly, spring (1d) is placed between spring seat (1a) and the throw-out collar (1b), and the breach that separately grab is aimed at the other side is inserted pressure spring (1d), reverse an angle more clockwise and unclamp then.Under the effect of grab, spring seat (1a) and throw-out collar (1b) clasp joint form a containerization assembly together.

The assembling of the described technological scheme of this example can get final product by technique known and in conjunction with Fig. 1.Below in conjunction with the accompanying drawings its working mechanism is summarized as follows again:

Referring to Fig. 1, when gland (3a) by screw (3b) and casing (3a) when tightening, stationary ring (2a) is fitted each other with the end face of rotating ring (1c), forces rotating ring (1c) drive seal ring (1e) and throw-out collar (1b) to retreat, and makes spring (1d) further be working state by compression.At this moment, b point on the spring seat (1a) and a point on the throw-out collar (1b) are thrown off (referring to Fig. 2).

When spring seat (1a) when clockwise rotating with axle, the C point on the spring seat (1a) contacts with d point on the throw-out collar (1b), drives throw-out collar (1b) and clockwise rotates together together with rotating ring (1c).When spring seat (1a) rotates with axle inhour, the f point on the spring seat (1a) contacts with e point on the throw-out collar (1b), also can drive throw-out collar (1b) together with one counter-clockwise rotation of rotating ring (1c).

Embodiment 2

With reference to Fig. 4 and Fig. 5, on the spring seat (1a), outside spring (1d), extend a thin walled cylinder, the end of thin walled cylinder is provided with bayonet socket, and rotating ring (1c) is provided with pin or screw (1g) cooperates transmission.

Above-mentioned enforcement means in addition can be carried out with reference to embodiment 1 and in conjunction with Fig. 4 and Fig. 5 in this example.

Embodiment 3

With reference to Fig. 6, on the rotating ring (1c), outside spring (1d), extend a thin walled cylinder, the end of thin walled cylinder is provided with bayonet socket, and spring seat (1a) is provided with pin (or screw) and (1g) cooperates transmission.

Above-mentioned enforcement means in addition can be carried out with reference to embodiment 1 and in conjunction with Fig. 6 in this example.

Claims

1, a kind of containerized card type mechanical seal device mainly is made up of moving ring assembly and static components, it is characterized in that in the described moving ring assembly, and the member at spring (1d) two adopts grab to connect transmission or bayonet socket connects transmission.

2, a kind of containerized card type mechanical seal device according to claim 1, it is characterized in that spring seat (1a) and throw-out collar (1b) along the relative respectively thin walled cylinder that extends in the spring (1d), the end of thin walled cylinder is respectively equipped with the grab of clasp joint transmission mutually.

3, a kind of containerized card type mechanical seal device according to claim 1, it is characterized in that on the spring seat (1a), extend a thin walled cylinder if spring (1d) is outer, the end of thin walled cylinder is provided with bayonet socket, and rotating ring (1c) is provided with pin (1g) and cooperates transmission.

4, a kind of containerized card type mechanical seal device according to claim 1, it is characterized in that on the rotating ring (1c), extend a thin walled cylinder outside spring (1d), the end of thin walled cylinder is provided with bayonet socket, and spring seat (1a) is provided with pin (1g) and cooperates transmission.