CN2237755Y

CN2237755Y - Sealing ring assembly of mechanical sealing

Info

Publication number: CN2237755Y
Application number: CN 96203100
Authority: CN
Inventors: 叶震榜
Original assignee: HUANQIU MACHINERY SEAL PARTS FACTORY YONGJIA COUNTY
Current assignee: HUANQIU MACHINERY SEAL PARTS FACTORY YONGJIA COUNTY
Priority date: 1996-01-31
Filing date: 1996-01-31
Publication date: 1996-10-16
Anticipated expiration: 2006-01-31

Abstract

The utility model relates to a sealing ring assembly for mechanical sealing, which is composed of a sealing ring, a ring sleeve and a sealing pad, wherein the sealing pad arranged between the sealing ring and the ring sleeve can absorb the stress produced in the process of the press fit of the sealing ring, the ring sleeve and the sealing pad, can ensure the flatness of the end surface of the sealing ring, and simultaneously can ensure the sealing along the sealing circumference direction. In addition, grooves which are matched with each other and are arranged in the circumference direction of the sealing ring, the ring sleeve and the sealing pad can prevent the rotation of the sealing ring. Because of the structure, the ring sleeve can be manufactured in the technology of thin wall punching. Accordingly, the utility model has the characteristics of material saving, high work efficiency, easy assembly, low cost and accuracy assurance.

Description

The seal ring assembly parts of mechanical seal

The utility model relates to a kind of seal ring assembly parts of mechanical seal.

The seal ring of mechanical seal is the core component of mechanical seal, the branch that rotary packing ring and stationary seal ring are arranged, under the effect of axial force, promptly form end face seal after the end face contact of rotary packing ring with stationary seal ring, therefore, planeness to the end face of seal ring has very high requirement, known seal ring assembly parts is made up of seal ring and ring set, seal ring is inlaid in the endoporus of ring set, and forms close-fitting, because ring set is the car product, the in general difficult control of the conformity of its endoporus size deviation, method is right with seal ring formation interference fit when joining with heat, and interference often occurs and excessively make the planeness of seal ring end face overproof, and the situation that causes end face seal to destroy.

It is simple that the purpose of this utility model provides a kind of assembling, and can guarantee the seal ring assembly parts of the mechanical seal of end face planeness.

The seal ring assembly parts of this mechanical seal is made up of seal ring, ring set and sealing gasket, and wherein sealing gasket is arranged on seal ring with between the ring set, and the circumferencial direction of seal ring, ring set and sealing gasket is equipped with the groove that mutual rank is closed.

Illustrate particular content of the present utility model below in conjunction with drawings and Examples.

Fig. 1: the structural drawing of stationary seal ring assembly parts;

Fig. 2: A-A sectional drawing;

Fig. 3: the structural drawing of rotary packing ring assembly parts;

Fig. 4: B-B sectional drawing.

As shown in the figure, but no matter be rotary packing ring assembly parts stationary seal ring assembly parts, form by seal ring 1, ring set 2 and sealing gasket 3, wherein sealing gasket 3 is arranged on seal ring 1 with between the ring set 2, and the circumferencial direction of seal ring 1, ring set 2 and sealing gasket 3 is equipped with the groove 4 that mutual rank is closed.Equal according to above-mentioned knot, consider that from process aspect ring set 2 can adopt the thin-walled pressing product to form, 4 of grooves on the ring set 2 are after sealing gasket 3 and seal ring 1 are pressed in the endoporus of ring set 2, and the method with pressure processing forms again.Described seal ring generally adopts cemented carbide or silicon carbide or 95 porcelain or graphite making, makes the material of sealing gasket 3 and can select nitrile rubber, fluorine rubber, ethylene-propylene diene copolymer and silicone rubber as required respectively for use.

The seal ring assembly parts of mechanism's sealing of said structure, though seal ring, between sealing gasket and the ring set three is close-fitting, but because of the elasticity of sealing gasket absorbs, on seal ring, just can not produce the stress that causes planeness overproof, the sealing that has guaranteed along the seal ring circumferencial direction is paid somebody's debt and expected repayment later in sealing in addition, groove has then prevented the rotation of seal ring, therefore, the seal ring assembly parts assembling of mechanical seal described in the utility model is simple, can guarantee simultaneously the planeness of end face, a kind of chance that adopts flushing technology processing also is provided concerning ring set, this technology had both been saved material, guarantee machining accuracy again, and the productivity height.

Claims

1, a kind of seal ring assembly parts of mechanical seal, it is characterized in that: form by seal ring (1), ring set (2) and sealing gasket (3), wherein sealing gasket (3) is arranged between the same ring set of seal ring (1) (2), and the circumferencial direction of seal ring (1), ring set (2) and sealing gasket (3) is equipped with the groove (4) that mutual rank cooperates.