CN2328832Y

CN2328832Y - Combined seal device

Info

Publication number: CN2328832Y
Application number: CN 97233795
Authority: CN
Inventors: 康中廒
Original assignee: KANG ZHANGAO
Current assignee: KANG ZHANGAO
Priority date: 1997-07-04
Filing date: 1997-07-04
Publication date: 1999-07-14
Anticipated expiration: 2007-07-04

Abstract

The utility model relates to a sealing device, particularly a combined sealing device which is composed of a felt sealing ring, an end cover, a sealing ring with a plurality of lips and a shell sleeve. The sealing ring with a plurality of lips and the felt sealing ring are arranged in the shell sleeve, and the end cover is buckled. The shell sleeve is arranged in the hole of the element which is sealed, and the matching surface of the shell sleeve, the sealing ring with a plurality of lips and an inner hole of the element which is sealed with an O-shaped sealing ring. The sealing ring with a plurality of lips and an inner hole of the felt sealing ring are narrowly sealed on a shaft. The combined sealing ring synthesizes the advantages of the felt sealing and the sealing of a plurality of lips, when a sealing shaft is worn, the combined sealing ring can automatically compensate, and the utility model has the advantages of good dustproof effect, good sealing effect, strong environmental suitability, convenient installation, and long service life.

Description

A kind of combination sealing arrangement

The utility model relates to seal arrangement, a kind of combination sealing arrangement.

Seal arrangement is the indispensable constituent element of machinery.Especially in rotating machinery, sealing effect has directly had influence on the total quality of equipment.The most multiple seal arrangements such as " zero " shape seal ring, oil sealing, felt dust sealing, lip seal that adopt of existing seal arrangement.Use these Sealings and can obtain the better seal effect.Because factor affecting such as dust are used above seal element separately and have been difficult to resolve fully sealing problem.Therefore, take favourable measure, improve airtight quality and remain a vital task.

The purpose of this utility model is, several Sealings are carried out reasonable combination, invents a kind of being applied in the rotating machinery, and rational in infrastructure, easy for installation, environmental suitability is strong, and sealing effect is good, the combination sealing arrangement of long service life.

The basic design of this model utility is to constitute new type sealing device by felt dust sealing and multi-lip seal etc.

Accompanying drawing is a structural representation of the present utility model.

Be described in detail by reference to the accompanying drawings structure of the present utility model.

This utility model is by felt seal ring [1], end cap [2], mulit-lip seal ring [3], valve jacket [4] consist of combination sealing. Valve jacket [4] is upper with paw [4-1]. Mulit-lip seal ring [3] is contained in valve jacket [4] inner chamber, mulit-lip seal ring [3] end face dress felt seal ring [1]. The outer garden of felt seal ring [1] Part fills gasket ring [1-1], gasket ring [1-1] outer garden part shock mount [1-2]. Pin [1-4] is with many lips Sealing ring [3] is fixed on the valve jacket [4]. Wire drawing [1-3] is associated in spring [1-2] and pin [1-4] Together. End cap [2] is contained in the inner chamber of valve jacket [4] and is buckled in the end face of felt seal ring [1]. Many lips Pack into mating surface and the valve jacket [4] of valve jacket [4] of sealing ring [3] packed into by the mating surface of seal endoporus On " zero " shape sealing ring [5], [6] preferably are installed. The footpath is arranged around the hole on end cap [2] end face To groove. Gasket ring [1-1] is opening tubular metalwork or working of plastics, also can mould with cylindrical membrane Material. Paw [4-1] on the valve jacket [4] is made 3 or more. Under the effect of spring [1-2] elastic force Under the elastic force effect of mulit-lip seal ring lip, make felt seal ring [1] and mulit-lip seal ring [3] Endoporus is close on the axle of sealing, with rotating shaft-seal.

This combination sealing arrangement, rational in infrastructure, fully utilized the advantage of felt dust sealing and lip seal, dustproof, sealing effect is good.Can keep good lubricating.When wearing and tearing, seal shaft can compensate automatically, long service life, and easy for installation.

Embodiment:

The valve jacket of combination sealing arrangement [4] is made tubular, and garden or end face leave the step or the groove of dress " zero " shape seal ring outside.The degree of depth of valve jacket [4] cavity is the thickness sum of felt seal ring [1], mulit-lip seal ring [3] and end cap [2].Paw [4-1] on the valve jacket [4] is made 3, and it is principle that its length can be pushed down end cap [2] after with bending, can make 4mm to 20mm.Mulit-lip seal ring [3] is the oil resistant rubber of band skeleton.Gasket ring [1-1] is used cylindrical plastic film.The diameter of bore of end cap [2] is greater than the diameter of sealed axle.During installation, valve jacket [4] is contained in the hole of sealed [8], dress " zero " shape seal ring [5] in step or the groove, axle pierces into endoporus.Mulit-lip seal ring [3] is enclosed within axle and goes up threading valve jacket [4], and lip seal is on axle, and when axle wore and tore, the elasticity acquisition compensation by lip kept good sealing.Dress " zero " shape seal ring [6] between mulit-lip seal ring [3] and the valve jacket [4].Pin [1-4] is fixed on mulit-lip seal ring [3] on the valve jacket [4] with riveted joint or screw, and there is the aperture of extension wire drawing [1-3] the pin other end.Felt seal ring [1] is contained in the end face of mulit-lip seal ring, is sealed on the axle its outer garden part dress gasket ring [1-1], and pocketed springs [1-2].The felt seal ring plays effect dustproof and sealing.Wire drawing [1-3] is associated in spring [1-2] and pin [1-4] together, makes spring stop.Cover end cap [2], three paws [4-1] on the valve jacket [4] are stooped tightly be pressed on the end cap [2], felt seal ring [1] and mulit-lip seal ring [3] are fixed on valve jacket [4] inner chamber.Because have radial groove pressing felt seal ring [1] on the end cap [2], when axle rotated, felt seal ring [1] can not rotate.

Claims

1. combination sealing arrangement, by the felt seal ring, mulit-lip seal ring is formed, it is characterized in that by felt seal ring [1], end cap [2], mulit-lip seal ring [3], valve jacket [4] constitutes combination seal, mulit-lip seal ring [3] is contained in the inner chamber of valve jacket [4], mulit-lip seal ring [3] end face dress felt seal ring [1], the outer garden of felt seal ring [1] part dress gasket ring [1-1], gasket ring [1-1] outer garden part shock mount [1-2], pin [1-4] is fixed on mulit-lip seal ring [3] on the valve jacket [4], wire drawing [1-3] is associated in spring [1-2] and pin [1-4] together, end cap [2] is contained in the inner chamber of valve jacket [4] and is buckled on the felt seal ring [1], and the paw [4-1] on the valve jacket [4] is pressed on the end cap [2].

2. a kind of combination sealing arrangement according to claim 1 is characterized by pack into the fitting surface of valve jacket [4] and valve jacket [4] of mulit-lip seal ring [3] and packs into and " zero " shape seal ring [5], [6] preferably are installed on the fitting surface of sealed endoporus.