CN202612650U - A shaft sleeve structure for easy disassembly of mechanical seal - Google Patents

Abstract

The utility model discloses a shaft sleeve structure that is convenient for mechanical seal disassembly, wherein a non-compensation ring is sleeved on one end of the shaft sleeve, and an anti-rotation pin is installed between the two, an O-ring 1 and an O-ring 2 are installed at the sealing part between the shaft sleeve and the non-compensation ring, and a threaded through hole is opened at the other end of the shaft sleeve corresponding to the non-compensation ring, and a hexagon socket screw is installed in the threaded through hole. The utility model is characterized by simple structure, easy implementation, solving the problem of the difficulty in disassembly of the non-compensation ring of the static mechanical seal, not easy to cause damage to the seal, and accelerating the equipment maintenance progress.

Description

A shaft sleeve structure for easy disassembly of mechanical seal

technical field

The utility model relates to the field of mechanical seals, in particular to a shaft sleeve structure which facilitates the disassembly of the mechanical seal.

Background technique

Mechanical seals are widely used in rotating equipment in various industries, and mechanical seals are often disassembled and inspected during equipment maintenance, which involves the disassembly of mechanical seals. As shown in Figure 1, non-compensated mechanical seals of static type The ring is installed on the shaft sleeve. Due to the O-ring between the two, it is difficult to remove the non-compensating ring. It is easy to damage the non-compensating ring with brute force, and the difficulty of disassembly directly affects the progress of maintenance. , which requires an easy-to-disassemble mechanical seal structure to solve this problem.

Utility model content

The purpose of the utility model is to overcome the above disadvantages and provide a shaft sleeve structure that facilitates the disassembly of the mechanical seal.

The technical solution adopted by the utility model to achieve the above purpose is: a shaft sleeve structure that facilitates the disassembly of the mechanical seal, which is characterized in that: one end of the shaft sleeve is fitted with a non-compensating ring, and an anti-rotation pin is installed between the two, so that O-ring 1 and O-ring 2 are installed at the seal between the shaft sleeve and the non-compensating ring, and the other end of the shaft sleeve is provided with a threaded through hole corresponding to the non-compensating ring, and an inner hexagon is installed in the threaded through hole screw.

A washer is installed between the hexagon socket head cap screw and the shaft sleeve.

The utility model is characterized in that the structure is simple, easy to implement, solves the problem that the non-compensating ring of the static mechanical seal is difficult to disassemble, is not easy to cause damage to the seal, and speeds up the progress of equipment maintenance.

Description of drawings

Figure 1 is a schematic diagram of the structure between the non-compensating ring and the shaft sleeve of a general static mechanical seal;

Fig. 2 is a structural representation of the utility model;

Fig. 3 is a schematic diagram of the utility model installed on a static mechanical seal.

Among them: 1. O-ring 1 2. Pin 3. O-ring 2 4. Non-compensating ring 5. Shaft sleeve 6. Gasket 7. Hexagon socket screws.

Detailed ways

As shown in Figures 2 and 3, the utility model is a shaft sleeve structure that facilitates the disassembly of mechanical seals. One end of the shaft sleeve 5 is fitted with a non-compensating ring 4, and an anti-rotation pin 2 is installed between the two. 5 and the non-compensating ring 4 are installed with O-ring 1 and O-ring 2 3, and the other end of the shaft sleeve 5 is provided with a threaded through hole corresponding to the non-compensating ring 4, and the threaded through hole is installed There is an inner hexagonal screw 7, and a gasket 6 is installed between the inner hexagonal screw 7 and the shaft sleeve 5. As shown in Figure 1, the general static mechanical seal has two sealing points when the equipment is running, that is, the O-ring-1 , O-ring 2 and 3 places, so as to ensure the normal operation of the mechanical seal, and the mechanical seal of the utility model has 3 sealing points when the equipment is running, that is, O-ring 1, O-ring 2 3, and gasket 6 , to ensure that the mechanical seal can work normally like a general static mechanical seal.

When disassembling the non-compensating ring 4 of the static mechanical seal, it is only necessary to remove the hexagon socket head screw 7 and the gasket 6 first, and then use a general tool to remove the non-compensating ring 4 very easily, and it is not easy to cause damage.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (2)

1. be convenient to the axle sleeve structure that mechanical seal is dismantled for one kind; It is characterized in that: an end of axle sleeve (5) is set with uncompensated ring (4); And stop pin (2) is installed between the two; Said axle sleeve (5) is equipped with O type circle one (1), O type circle two (3) with the sealing part of uncompensated ring (4), and the corresponding uncompensated ring of the other end of said axle sleeve (5) (4) locates to offer tapped through hole, and socket head screw (7) is installed in the said tapped through hole.

2. the axle sleeve structure of being convenient to the mechanical seal dismounting as claimed in claim 1 is characterized in that: between said socket head screw (7) and the axle sleeve (5) pad (6) is installed.

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