CN2714897Y

CN2714897Y - Large size reinforced seal ring

Info

Publication number: CN2714897Y
Application number: CNU2004200780838U
Authority: CN
Inventors: 刘景华
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-27
Filing date: 2004-07-27
Publication date: 2005-08-03
Anticipated expiration: 2014-07-27

Abstract

The utility model relates to a seal ring, in particular to an improvement for the skeleton seal ring of the large-sized mechanical device suitable for the metallurgy, the craft, etc. The seal ring contains a metal outer ring skeleton, a rubber seal lip type ring arranged in the metal outer ring skeleton and a lock ring spring. The improvement of the seal ring is that the seal ring also contains a support steel ring and an elastic retainer in the circular sheet structure; the support steel ring is arranged in the metal outer ring skeleton; the outer ring of the support steel ring is supported on the inner wall of the metal outer ring skeleton; the radical configuration of the retainer is matched with the rubber seal lip type ring; the lower end of the radical configuration of the retainer is fixedly connected with the support steel ring, and the upper end of the radical configuration of the retainer is provided with a ring edge supporting the lock ring spring. The retainer can act the function of isolating the foreign matter to prevent the damage of the rubber seal lip type ring led by the high-temperature or the abrasion. In addition, the retainer also acts the supplemental function of the radial force when the retainer supports the lock ring spring simultaneously. Therefore, the seal ring has the advantages of reliable seal, long service life, and convenient installation.

Description

Large-scale backbone sealing ring

Technical field

The utility model relates to a kind of seal ring, and especially a kind of backbone sealing ring that is applicable to heavy mechanical equipments such as metallurgy, boats and ships belongs to the Sealing technical field.

Background technique

Use at present large-scale backbone sealing ring on the rolling mill heavy mechanical equipment of other metallurgy, boats and ships (or be used in) by metal outer ring framework, and metal outside ring framework make the rubber seal lip ring of one and be sleeved on lock ring spring on the rubber seal lip ring etc. and form.The shortcoming that the large-scale backbone sealing ring of this structure exists in use has:

1, rubber seal lip ring can sustain damage because of touching foreign matter (as the high temperature iron sheet etc.), thereby influences sealability and working life;

2, after the wearing and tearing of long-term operation rubber seal lip ring, only rely on the additional radial compaction power of lock ring spring reliable inadequately, thereby can cause seal failure;

3, the lock ring spring easily comes off when seal ring is installed.

Summary of the invention

The technical problems to be solved in the utility model is: the shortcoming that exists at above prior art by architecture advances, proposes a kind of large-scale backbone sealing ring that can isolate that foreign matter contacts with caulking gum spare, good seal performance, long service life.

In order to solve above technical problem, a kind of large-scale backbone sealing ring that the utility model proposes, comprise the outer ring framework of metal, be installed in metal outer ring intraskeletal rubber seal lip ring, and lock ring spring, it is characterized in that: also comprise the supporting steel loop and the elasticity retainer of sheet structure ringwise, described supporting steel loop is installed in the outer ring framework of metal, its outer ring is resisted against on the inwall of the outer ring framework of metal, the radial contour of described retainer and rubber seal lip ring are complementary, its lower end and described supporting steel loop are connected, and the upper end is shaped on the circle limit of the described lock ring spring of supporting.

The retainer of above-mentioned sheet structure is resisted against on the rubber seal lip ring, can play the effect of isolating foreign matter, causes rubber seal lip ring to damage to prevent Yin Gaowen or wearing and tearing.In addition, retainer has also played the supplementary function of radial force in supporting lock ring spring.Therefore, large-scale backbone sealing ring of the present utility model have that sealing is reliable, long service life, the advantage being convenient to install.

Description of drawings

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

Fig. 1 is an embodiment's of the utility model a structural representation.

Fig. 2 is the plan view of Fig. 1.

Fig. 3 is the partial enlarged drawing of Fig. 1.

Fig. 4 is the partial enlarged drawing of Fig. 2

Embodiment

The large-scale backbone sealing ring of present embodiment is made up of the outer ring framework 3 of metal, supporting steel loop 2, rubber seal lip ring 4, lock ring spring 1 and retainer 5 shown in Fig. 1～4.Supporting steel loop 2 and rubber seal lip ring 4 are installed in the outer ring framework 3 of metal, retainer 5 is made by the Stainless Sheet Steel with colored shape punching, its radial contour and rubber seal lip ring 4 are complementary, both are abutted against each other together, the lower end is embedded in that the three is pressed into one between the outer ring framework 3 of supporting steel loop 2 and metal, and the upper end is shaped on the circle limit of supporting lock ring spring 1.

Facts have proved that the seal ring that present embodiment proposes uses on big machineries such as metallurgy, building, the advantage of have good seal performance, long service life, being convenient to install.

In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1. large-scale backbone sealing ring, comprise the outer ring framework of metal, be installed in metal outer ring intraskeletal rubber seal lip ring and lock ring spring, it is characterized in that: also comprise the supporting steel loop and the elasticity retainer of sheet structure ringwise, described supporting steel loop is installed in the outer ring framework of metal, its outer ring is resisted against on the inwall of the outer ring framework of metal, the radial contour of described retainer and rubber seal lip ring are complementary, its lower end and described supporting steel loop are connected, and the upper end is shaped on the circle limit of the described lock ring spring of supporting.

2. according to the described large-scale backbone sealing ring of claim 1, it is characterized in that: described retainer is the Stainless Sheet Steel retainer with colored shape punching.

3. according to the described large-scale backbone sealing ring of claim 2, it is characterized in that: the lower end of described retainer is embedded between supporting steel loop and the outer ring framework of metal, and the three is pressed into one.