CN2665443Y

CN2665443Y - High thrust water lubrication anti-thrust bearing

Info

Publication number: CN2665443Y
Application number: CN 200320121510
Authority: CN
Inventors: 李庆玉; 谷成文; 庞磊; 王磊
Original assignee: SHANDONG ELECTRIC PUMP CO Ltd
Current assignee: SHANDONG ELECTRIC PUMP CO Ltd
Priority date: 2003-12-26
Filing date: 2003-12-26
Publication date: 2004-12-22
Anticipated expiration: 2013-12-26

Abstract

The utility model provides a high-thrust water lubricated end anti-thrust bearing, which comprises a bearing, a bearing support, thrust discs and thrust disc carriers. The bearing support and the bearing are fixedly connected by pins. Round holes with pin slots are arranged axially on the bearing support and communicated with the hollow bearing. A plurality of ball-shaped projecting thrust discs arranged at the bottom of the bearing support prop up the upper end face of the thrust disc carrier and on the same circle; the upper end face of the thrust disc carrier is press-connected with the bottom surface of the bearing. The utility model is characterized in that the thickness of the thrust disc is 3.2 mm to 3.5 mm, the bottom of the thrust disc is provided with locating landing legs, grooves are arranged on the side wall of the thrust disc, the locating landing legs run through the upper side wall of the grooves into the grooves, and all the locating landing legs are gathered around the thrust disc carrier by a seal ring. When the bearing is in operation the water film formed between the thrust disc and the bearing is thickened along with the increase of the rotation speed of the bearing, the thickened water film can effectively complement the differences of unevenness and roughness caused in the bearing processing process, so that the bearing runs more stably and reliably, the complete water film lubrication can be achieved, and the loading capacity of the bearing is greatly improved.

Description

High thrust water lubricating thrust bearing possessing

Described technical field

The utility model provides a kind of high thrust water lubricating thrust bearing possessing, belongs to well Submerged Motor Pumps technical field.

Background technique

Well uses flat water lubricating thrust bearing possessing with Submerged Motor Pumps for a long time always, the axial force that is produced during with the work of supporting Submerged Motor Pumps.This bearing hour belongs to boundary friction in axial force, belongs to dry friction when axial force is big, and the lubricated main self-lubricating property by bearing material itself of bearing solves, and therefore is difficult to the bearing capacity of raising bearing.Because in this bearing working friction is arranged, electric pump just has frictional loss, the big more frictional loss of axial force is also big more, frictional loss makes motor temperature raise, this not only influences the overall efficiency of electric pump unit, also influence the working life of submersible motor, more have influence on designing and developing of high-power, high-lift Submerged Motor Pumps product.

The model utility content

The purpose of this utility model provides a kind ofly can overcome above-mentioned defective, can increase substantially the very little high thrust water lubricating thrust bearing possessing of axial force bearing capacity, frictional loss.Its technological scheme is:

Comprise bearing, bearing support, thrust disc and thrust disc seat, its bottom bracket is sold with bearing and is fixedlyed connected, the circular hole that the bearing support upper edge is axially arranged with the band cotter way is communicated with the bearing of hollow, the bottom is provided with the polylith thrust disc of spherical protuberances and conflicts on the same circumference of thrust disc seat upper-end surface, its upper-end surface and the crimping of bearing bottom surface, it is characterized in that: the thick 3.2mm～3.5mm of thrust disc, its bottom is provided with the location supporting leg, be provided with groove around thrust disc seat sidewall, the upper side wall that the location supporting leg passes groove probes in the groove, by seal ring many location supporting legs is drawn in around the thrust disc seat.

Described high thrust water lubricating thrust bearing possessing, the end face of every thrust disc is fan-shaped.

Described high thrust water lubricating thrust bearing possessing, thrust disc seat upper edge is axially arranged with the backwater hole that runs through, and its bottom centre is provided with spherical the support.

Its working principle is: when the bearing entry into service, just it is extremely thin and the moisture film of certain pressure arranged to form one deck between thrust disc and the bearing, under the effect of moisture film pressure, thrust disc deforms immediately, and water film thickness increases, along with the increase of bearing rotating speed, the axial force of pump also increases, moisture film pressure increases, and the thrust disc amount of deformation increases, and water film thickness also increases thereupon.The moisture film of having thickeied can effectively compensate nonflatness, the roughness error that bearing produces in course of working, more stable work is reliable, can realize that complete moisture film is lubricated, has increased substantially the bearing capacity of bearing.

The utility model compared with prior art, can increase substantially the axial force bearing capacity of bearing, frictional loss is very little, has improved the efficient and the working life of electric pump, overcome the defective that flat thrust bearing surface friction drag is big, bearing capacity is low, excellent working performance.

Description of drawings

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

Fig. 2 is the structural representation of middle thrust disc embodiment illustrated in fig. 1;

Fig. 3 is the plan view of middle thrust disc embodiment illustrated in fig. 1;

Fig. 4 is the structural representation behind the middle formation moisture film embodiment illustrated in fig. 1.

Embodiment

1, bearing support 2, bearing 3, thrust disc 4, thrust disc seat 5, pin 6, cotter way 7, circular hole 8, spherical protuberances 9, location supporting leg 10,14 grooves 11, seal ring 12, backwater hole 13, spherical support 15, moisture film

Bearing support 1 is sold 5 with the bearing 2 of hollow and is fixedlyed connected, the circular hole 7 that bearing support 1 upper edge is axially arranged with band cotter way 6 is communicated with the bearing 2 of hollow, between the bottom end face of bearing 2 and thrust disc seat 4, be pressed with the polylith end face and be fan-shaped thrust disc 3, every thrust disc 3 thick 3.2mm～3.5mm, its bottom is provided with spherical protuberances 8 and location supporting leg 9, wherein spherical protuberances 8 is conflicted on the same circumference of thrust disc seat 4 upper-end surfaces, be fixing thrust disc 3, be provided with groove 10 around thrust disc seat 4 sidewalls, the upper side wall that location supporting leg 9 passes groove 10 probes in the groove 10, and draw many location supporting legs 9 in around thrust disc seat 4 at groove 14 places that are enclosed within location supporting leg 9 by seal ring 11.

Thrust disc seat 4 upper edges are axially arranged with the backwater hole 12 that runs through, and its bottom centre is provided with spherical support 13.

Claims

1, a kind of high thrust water lubricating thrust bearing possessing, comprise bearing support (1), bearing (2), thrust disc (3) and thrust disc seat (4), its bottom bracket (1) is sold (5) with bearing (2) and is fixedlyed connected, the circular hole (7) that bearing support (1) upper edge is axially arranged with band cotter way (6) is communicated with the bearing (2) of hollow, the bottom is provided with the polylith thrust disc (3) of spherical protuberances (8) and conflicts on the same circumference of thrust disc seat (4) upper-end surface, its upper-end surface and bearing (2) bottom surface crimping, it is characterized in that: the thick 3.2mm～3.5mm of thrust disc (3), its bottom is provided with location supporting leg (9), be provided with groove (10) around thrust disc seat (4) sidewall, the upper side wall that location supporting leg (9) passes groove (10) probes in the groove (10), by seal ring (11) many location supporting legs (9) is drawn in around thrust disc seat (4).

2, high thrust water lubricating thrust bearing possessing as claimed in claim 1, it is characterized in that: the end face of every thrust disc (3) is fan-shaped.

3, high thrust water lubricating thrust bearing possessing as claimed in claim 1 is characterized in that: thrust disc seat (4) upper edge is axially arranged with the backwater hole (12) that runs through, and its bottom centre is provided with spherical support (13).