CN2334942Y

CN2334942Y - Water sealed rubber bearing

Info

Publication number: CN2334942Y
Application number: CN 98205183
Authority: CN
Inventors: 孙桂林; 倪志华
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-05-28
Filing date: 1998-05-28
Publication date: 1999-08-25
Anticipated expiration: 2008-05-28

Abstract

The utility model relates to a water sealed rubber bearing, composed of a bearing body, spiral spring rings and filtering ring nets. The bearing body is a rubber sleeve, the hole diameter of which corresponds to the supported neck of an axle, the spiral spring rings are arranged in ring grooves outside thin necks of both ends of the rubber sleeve so that the rubber sleeve and the axle are sealed, a plurality of axial grooves, both ends of which are not communicated, are arranged on the hole wall of the rubber sleeve between the thin necks of both ends, ring grooves are respectively arranged on the convex shoulders of the outer walls of both ends of the rubber sleeve corresponding to the axial grooves, the ring-shaped filtering ring nets are arranged in the ring grooves, and the bottoms of the ring grooves are provided with a plurality of through holes which are respectively communicated with the axial grooves in the rubber sleeve. The utility model can effectively prevent silt sundries from entering between the axle and the bearing so as to reduce abrasion and extend the service lives of the axle and the bearing.

Description

The water-stop rubber bush bearing

The utility model relates to the mechanical seal bearing, and concrete is a kind of by the lubricated robber cement stuffing box bearing of current, and particularly suitable is made the Submerged Motor Pumps bearing.

Existing Submerged Motor Pumps bearing is to be made by rubber material, two ends are open, thereby current are by playing lubrication between axle and bearing, but this working procedure has a tangible problem, when the sediment charge in the water surpasses 0.01% standard, between axle and bearing, just resemble and injected one deck " grinding sand ", make very quick-wearing of bearing and axle.So " GB 2817 " well is no more than 0.01% with sand content (weight ratio) in the Submerged Motor Pumps technical specifications requirement water, and existing rubber bush bearing is difficult to reach the sealing to silt.

The purpose of the utility model bearing is to improve the deficiency of existing rubber bush bearing, and a kind of robber cement stuffing box bearing is provided, and it can prevent effectively that the silt foreign material from entering between axle and the bearing, reduces wear, and prolongs the working life of axle and bearing.

The purpose of this utility model is achieved in that

A kind of water-stop rubber bush bearing, by bearing body, spiral elastic ring and filtration looped network are formed, it is characterized in that: bearing body is a rubber sleeve, its aperture is corresponding with the axle journal that is supported, in the thin neck outer groove at these rubber sleeve two ends spiral elastic ring being housed now seals rubber sleeve and shaft clip consolidation, the obstructed axial groove in some two ends is arranged on the rubber sleeve hole wall between the thin neck in two ends, to should respectively being shaped on an annular groove on the rubber sleeve two ends convex shoulder outer wall of axial groove, the filtration looped network of ring-type is housed in this annular groove, some through holes are arranged at this annular groove bottom, and each communicates with axial groove on the rubber sleeve inner hole wall, and the described two ends annular groove that filters looped network that is equipped with is immersed in the water.

The utility model has following actively useful effect:

1, this bearing is particularly to Submerged Motor Pumps, and the pump housing of former pump, impeller, axle need not change, and only change this bearing and get final product.

2, this bearing can be effectively filters silt, and the wearing and tearing, particularly sediment charge that alleviate axle and bearing can only be turned round 24 hours with existing submersible pump continuously greater than in 0.01% the well, and bearing just heavy wear can't continue use.And use this stuffing box bearing, every day to turn round continuously 8 hours, accumulative total turned round 1500 hours, still can run well.

Now in conjunction with the accompanying drawings with preferred embodiment:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A parting view of Fig. 1.

Fig. 3 is the B-B parting view of Fig. 1.

Water-stop rubber bush bearing of the present utility model, by bearing body 1, spiral elastic ring 2 and filtration looped network 3 are formed, see Fig. 1, Fig. 2, Fig. 3, bearing body 1 is a rubber sleeve, its aperture is corresponding with the axle journal 9 that is supported, there is the convex shoulder 4 of evagination at these rubber sleeve two ends, there is thin neck 5 at these protruding axle two ends, helical spring 2 is housed in the outer groove of thin neck 5 rubber sleeve 1 and axle 9 lock rings are realized sealing, the obstructed axial groove in some two ends 6 is arranged on the rubber sleeve hole wall between the thin neck in two ends, to should respectively being shaped on an annular groove 7A on the rubber sleeve two ends shaft shoulder outer wall of axial groove, 7B, the filtration looped network 3 of ring-type is housed in this annular groove, this filter screen can be used felt, filter clothes etc. are made, and some through holes 8 are arranged at this annular groove bottom, and each communicates with axial groove 6 on the rubber sleeve inner hole wall, and the described two ends annular groove that filters looped network that is equipped with is immersed in the water.

Working condition of the present utility model: the two ends of bearing and shaft sealing, water enters water inlet 8 by filtering looped network 3, then enters in the axial groove in the bearing.Because each bearing has eight grooves, and every groove two ends have a hole respectively, the bearing two ends are all soaked in water in 16 holes totally like this, have guaranteed the lubricated water in the bearing fully.

During enforcement, described axial groove 6 can be a straight trough, also can be spiral chute.

Claims

1, a kind of water-stop rubber bush bearing, by bearing body, spiral elastic ring and filtration looped network are formed, it is characterized in that: bearing body is a rubber sleeve, its aperture is corresponding with the axle journal that is supported, in the thin neck outer groove at these rubber sleeve two ends spiral elastic ring being housed now seals rubber sleeve and shaft clip consolidation, the obstructed axial groove in some two ends is arranged on the rubber sleeve hole wall between the thin neck in two ends, to should respectively being shaped on an annular groove on the rubber sleeve two ends convex shoulder outer wall of axial groove, the filtration looped network of ring-type is housed in this annular groove, some through holes are arranged at this annular groove bottom, and each communicates with axial groove on the rubber sleeve inner hole wall, and the described two ends annular groove that filters looped network that is equipped with is immersed in the water.