CN2191320Y

CN2191320Y - Part type cup ring type sealer

Info

Publication number: CN2191320Y
Application number: CN 94225196
Authority: CN
Inventors: 贺云山; 唐少军
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-27
Filing date: 1994-01-27
Publication date: 1995-03-08
Anticipated expiration: 2004-01-27

Abstract

The utility model relates to a contact movable sealing device, which is characterized in that a multi-stage expansion ring type sealing ring is arranged at intervals in a whole outer shell composed of an upper shell and a lower shell which are separated in order to divide the sealing device into parts. In addition, an oil chamber filled with lubricating oil is arranged between adjacent sealing rings, and the lubricating oil is filled periodically for the effect of auxiliary seal and reducing friction. The utility model dividing the sealing device into parts can be used for various equipment according to standard production and sale. The utility model is suitable for lubricating oil seal with the sealing pressure difference delta P < = 0.1 Mpa oil seal and gas seal with favorable sealing effect, long service life, easy assembly and disassembly and low cost.

Description

Part type cup ring type sealer

The utility model relates to the contact-type dynamic seal apparatus.

In metallurgy, chemical industry, the building material industry, the equipment of many use thin oil lubricants is arranged, as equipment bearing of speed reducer, high speed rotary etc.The motive sealing member of these equipment has multiple structural type, and the piston ring type motive sealing also is use always a kind of.The part but the general piston ring type motive sealing or the motive sealing of other structural type still have some deficits: the one, the motive sealing poor effect, the ubiquity oil leakage phenomenon, the a large amount of expensive lubricant oil of waste, contaminated equipment and surrounding environment, even can damage equipment two be that these motive sealing members often are arranged on the specific position for the parts peculiar of certain equipment, not component type, can not use separately, can not make standard piece and be applied on the various kinds of equipment by market sale.The 3rd, the motive sealing that some is effective because complex structure, is made and the installation precision height, and service condition requires harsh, costs an arm and a leg etc. former thereby is difficult to widely application on general device.

The purpose of this utility model provides a kind of piston ring type seal device.The sealing device is a component type, can do as a wholely by different seal pressure differential needs, produces into the standard piece of different journal sizes in batches, can independently be applied on the various kinds of equipment.And held concurrently with the enhancing sealing effect and subtracted effect in the auxiliary seal chamber that is provided with lubricating grease between the piston ring seal rings at different levels.The utility model can be used for seal oil and the gas seal of seal pressure differential △ P≤0.1MPa.

Piston ring type seal device of the present utility model is made of multistage piston ring seal ring, its technical characterstic is: a shell is established in piston ring seal ring outside, all parts are placed in this shell, to realize the componentization of sealing device, described shell is the subdivision structure, and piston ring seal rings at different levels in the enclosure are spaced, for ease of loading and unloading, upper and lower frame becomes whole with bolted on connection, keeps centering with locating stud.

Establish an oil pocket between the adjacent seals ring, be full of lubricating grease in the oil pocket and play auxiliary seal and subtract effect, this oil pocket communicates with pressure lubricating cup and oilhole on being located at housing.

Seal cup is preferably made by graphite or filling tetrafluoroethylene.

This sealer can generally be applicable to the use thin oil lubricant, on the various kinds of equipment of seal pressure differential △ P≤0.1MPa.Can eradicate leakage of oil, thereby reach equipment safety operation, save expensive in a large number lubricant oil and elimination pollution equipment and surrounding environment.

The utility model sealer is used for the gas seal of seal pressure differential △ P≤0.1MPa, can prevent gas loss, keeps ductwork pressure not reduce, and satisfies arts demand, also relatively saves power consumption.

Because the good sealing effect of this sealer, the life-span is long, and is widely applicable, easy to loading and unloading, low price, thereby the quantity of using will be a lot, the social benefit of its generation will be bigger.

Accompanying drawing is a specific embodiment of the utility model, and existing details are as follows:

Fig. 1 is a main pseudosection of the present utility model.

Fig. 2 is a plan view of the present utility model.

Fig. 3 is a left pseudosection of the present utility model.

Fig. 4 is the utility model seal ring jointing sectional drawing.

The upper shell 1 of part and lower shell body 2 usefulness bolts 3 and spring washer 4 are coupled to monolithic case, are provided with two locating studs 5 on split surface, to keep the centering of upper and lower casing.In housing, be provided with 2-5 level piston ring type seal ring 6, seal ring 6 is made by graphite or filling tetrafluoroethylene, difference by the diameter of axle is divided into the 3-6 five equilibrium along circumference, jointing is the bridging arrangement (see figure 4), on the excircle of seal ring 6, be provided with a circle and draw spring 7, compress mutually with the axle surface to keep the seal ring internal circular surfaces.One side of every grade of seal ring is provided with a groove, matches with the jackscrew 8 that is fixed on housing groove side, and seal ring 6 can not be changeed with axle.In housing, be provided with 2-5 bar annular groove 14, match with seal ring 6.Be provided with forced filling oil cup 9 on the top of upper shell 1, formed oil pocket 11 communicates between the oilhole 10 of its underpart and the seal ring.Regularly inject lubricant grease through forced filling oil cup 9, riddle in each oil pocket 11, the effect of playing auxiliary seal and subtracting through oilhole 10 with oil gun.The utility model is a kind of independent parts, can make sealer be assemblied in sealed equipment arbitrarily by screw 15 usefulness screws 12 and the packing ring 13 that is located on the housing, finishes seal action independently.

Claims

1, component type piston ring sealer is made of multistage piston ring seal ring, it is characterized in that a shell is established in the outside of piston ring seal ring, and piston ring seal rings at different levels in the enclosure are spaced.

2, by the described sealer of claim 1, it is characterized in that shell is made of the upper shell and the lower shell body of subdivision, both become whole with bolted on connection, and two locating studs are arranged on the split surface.

3, by claim 1 or 2 described sealers, its special putting in order is to establish an oil pocket between the adjacent piston ring seal ring, is full of lubricating grease in the chamber, and this oil pocket communicates with the pressure lubricating cup and the oilhole that are located at upper shell.

4,, it is characterized in that seal ring is by graphite or fill tetrafluoroethylene and make by claim 1 or 2 described sealers.