CN205896172U

CN205896172U - Modular becket gasket

Info

Publication number: CN205896172U
Application number: CN201620668810.9U
Authority: CN
Inventors: 严卫东
Original assignee: NINGBO IDT SINYUAN SEALING TECHNOLOGY CO LTD
Current assignee: NINGBO IDT SINYUAN SEALING TECHNOLOGY CO LTD
Priority date: 2016-06-30
Filing date: 2016-06-30
Publication date: 2017-01-18
Anticipated expiration: 2026-06-30

Abstract

The utility model provides a modular becket gasket, includes a plurality of becket of range upon range of setting, the surface of becket is inclined surface, the becket is formed by a plurality of sections arc structure concatenations, leaves first gap between the arc structure, still including locating the beaded finish between the becket, the internal surface of beaded finish is inclined surface, the surface of becket with the internal surface degree of inclination of beaded finish is the same. The utility model discloses following beneficial effect has: the utility model provides a becket gasket of combination formula, it is sealed effectual, have the ability of certain shrink and expansion, the equipment is convenient, and the suitability is strong.

Description

A kind of combined metal ring pad

Technical field

The utility model belongs to semi-metallic gasket field and in particular to a kind of combined metal ring pad.

Background technology

Gasket seal be a kind of for machinery, equipment, pipeline seal, make inside and outside completely cut off, play sealing function.Press Material can be divided into metallic packing and nonmetallic gasket seal, metal have copper backing, stainless steel gasket, iron gasket, aluminium pad Piece etc.；Nonmetallic has asbestos washer, non-asbestos pad, paper gasket, rubber sheet gasket etc..

Metal ring gasket is typically set in telescopic shaft or rotating shaft, for axial seal.Becket pad of the prior art Piece is to have certain thickness annular gasket, and this makes the bulk deformation ability of pad it is impossible to adapt to rotating shaft in the course of work Tiny radial dimension change and axially loaded, are easily caused the decline of sealing property.

The utility model is studied on this direction, there is provided a kind of combined metal ring pad of good sealing effect Piece.

Utility model content

Not enough for prior art, the utility model provides a kind of combined metal ring pad, easy to assembly, sealing effect Really good, strong adaptability.

In order to solve above-mentioned technical problem, the utility model is addressed by following technical proposals.

A kind of combined metal ring pad, including several beckets being stacked, the outer surface of described becket is Inclined surface, described becket is spliced to form by some sections of arcuate structures, leaves the first gap between arcuate structure；Also include setting Reinforcing ring between becket, the inner surface of described reinforcing ring is inclined surface；The outer surface of described becket and described plus The inner surface inclined degree of strong ring is identical.

Compared to all-in-one-piece annular shim of the prior art, the combined semi metallic gasket in the utility model adopts The structure that becket and reinforcing ring are stacked, becket is set on axle with strengthening circular layer, the inner surface of becket and axle Fitting in periphery, keeps sealing, and the outer surface of reinforcing ring is fitted with the inner chamber of external structure, keeps sealing, and becket and reinforcement Contacted by inclined plane between ring, therefore in the motion process of axle, the power of axial direction can be turned by the inclined plane part offseting Turn to the power of radial direction, make becket be close to the periphery of axle, keep good sealing property；Further, in the utility model Becket is made up of some sections of arcuate structures, and has gap each other, therefore has good expansion and compression performance, energy Enough adapt to the minor variations of axle.

Preferably, the inner surface of described becket is provided with some first projections, the first projection is coated with graphite linings, leads to The multiple tracks pointed tooth crossing projection keeps multiple tracks linear sealing, and the expanded graphite meterial layer simultaneously covering increases the raised periphery with axle patch Close, sealing effectiveness is more preferable.

Preferably, the outer surface of described reinforcing ring is provided with some second projections, the second projection is coated with graphite linings, leads to The multiple tracks pointed tooth crossing projection keeps multiple tracks linear sealing, and the expanded graphite meterial layer simultaneously covering increases raised interior with external structure Fit in chamber, sealing effectiveness is more preferable.

The first seam preferably, described reinforcing ring is provided with the second gap, on the becket and reinforcing ring being disposed adjacent Gap and the second gap stagger setting, it is to avoid flowing between gap for the lubricating oil.

Preferably, described reinforcing ring is the reinforcing ring being made of metal, intensity is high.

Compared with prior art, the utility model has the advantages that and provides a kind of knockdown semimetal pad Piece, good sealing effect, there is the ability of certain contraction and expansion, easy to assembly, strong applicability.

Brief description

Fig. 1 is the schematic diagram of reinforcing ring.

Fig. 2 is the schematic diagram of the reinforcing ring being provided with the second projection.

Fig. 3 is the schematic cross-section of reinforcing ring.

Fig. 4 is the schematic diagram of becket.

Fig. 5 is the schematic diagram of the becket being provided with the first projection.

Fig. 6 is the schematic cross-section of becket.

Fig. 7 is assembling schematic diagram of the present utility model.

Specific embodiment

With specific embodiment, the utility model is described in further detail below in conjunction with the accompanying drawings.

Referring to figs. 1 to shown in Fig. 6, a kind of combined metal ring pad, including several beckets 2 being stacked, institute The outer surface stating becket 2 is inclined surface (inclination angle is 40 ° ~ 60 °), and described becket 2 splices shape by four sections of arcuate structures Become, between arcuate structure, leave the first gap 21；Also include the reinforcing ring 1 between becket 2, described reinforcing ring 1 interior Surface is inclined surface (inclination angle is 40 ° ~ 60 °)；The inner surface of the outer surface of described becket 2 and described reinforcing ring 1 tilts Degree is identical, is all 40 ° ~ 60 ° for inclination angle, preferably 45 °, makes two inclined planes can be good at fitting.

In present embodiment, the inner surface of described becket 2 is provided with some radially-arranged first projections 22, described plus The outer surface of strong ring 1 is provided with some radially-arranged second projections 12, and the first raised 22 and second projection 12 is coated with stone Layer of ink, can strengthen sealing effectiveness further.

In present embodiment, described reinforcing ring 1 is provided with the second gap 11, on the becket 2 and reinforcing ring 1 being disposed adjacent The first gap 21 and the second gap 11 stagger setting, prevent lubricating oil flow；Reinforcing ring 1 also has metal material to make.

Fig. 7 show the assembling schematic diagram of one of the utility model combined metal ring pad, using becket 2 with The structure that reinforcing ring 1 is stacked, becket 2 and 1 layer of reinforcing ring are set on axle 4, and the inner surface of becket 2 is outer with axle 4 Week laminating, keeps sealing, and the outer surface of reinforcing ring 1 is fitted with the inner chamber of external structure 3, keeps sealing.Becket 2 and reinforcing ring Fitted by inclined plane between 1 and contact, therefore in the motion process of axle 4, the power of axial direction can be by the inclination face offseting Divide the power being converted into radial direction, make becket 2 be close to the periphery of axle 4, keep good sealing property；Meanwhile, becket 2 and reinforcement Ring 1 is made up of some sections of arcuate structures, has gap between arcuate structure, therefore has good expansion and compression performance, energy Enough adapt to the minor variations of axle.

The above, the utility model provides a kind of combined metal ring pad, good sealing effect, has certain receipts Contracting and the ability of expansion, easy to assembly, strong applicability.

Protection domain of the present utility model includes but is not limited to embodiment of above, and protection domain of the present utility model is to weigh Sharp claim is defined, and any replacement that those skilled in the art that this technology is made is readily apparent that, deformation, improvement each fall within Protection domain of the present utility model.

Claims

1. a kind of combined metal ring pad is it is characterised in that include several beckets (2) being stacked, described metal The outer surface of ring (2) is inclined surface, and described becket (2) is spliced to form by some sections of arcuate structures, stays between arcuate structure There is the first gap (21)；Also include the reinforcing ring (1) between becket (2), the inner surface of described reinforcing ring (1) is to tilt Surface；The outer surface of described becket (2) is identical with the inner surface inclined degree of described reinforcing ring (1).

2. a kind of combined metal ring pad according to claim 1 is it is characterised in that the interior table of described becket (2) Face is provided with some first raised (22), and this first raised (22) are coated with graphite linings.

3. a kind of combined metal ring pad according to claim 1 is it is characterised in that the appearance of described reinforcing ring (1) Face is provided with some second raised (12), and this second raised (12) are coated with graphite linings.

4. a kind of combined metal ring pad according to any one of claims 1 to 3 is it is characterised in that described reinforcing ring (1) it is provided with the second gap (11), the first gap (21) on the becket being disposed adjacent (2) and reinforcing ring (1) and second is stitched Gap (11) staggers setting.

5. a kind of combined metal ring pad according to claim 4 is it is characterised in that described reinforcing ring (1) is by gold Belong to the reinforcing ring made.