CN202746403U

CN202746403U - Thrust bearing

Info

Publication number: CN202746403U
Application number: CN 201220399118
Authority: CN
Inventors: 何卫平; 黄维根
Original assignee: JINHUA JINLISHI PUMP CO Ltd
Current assignee: JINHUA JINLISHI PUMP CO Ltd
Priority date: 2012-08-13
Filing date: 2012-08-13
Publication date: 2013-02-20
Anticipated expiration: 2022-08-13

Abstract

The utility model discloses a thrust bearing which is used for the self-aligning balancing of a motor of a submerged pump for a well, and belongs to the manufacturing field of a motor of a submerged pump. The thrust bearing comprises thrust shoes, steel balls, a retainer ring, a fixed plate and a fixed seat. The fixed plate 4 is arranged in the fixed seat 5, the fixed plate 4 is an annular component, multiple limit retaining posts 8 and steel ball holes 9 are arranged on the annular component at intervals, the steel balls 2 are arranged in the steel ball holes 9, each thrust shoe is in a sector-shaped structure, the thrust shoes are uniformly arranged on the fixed plate 4 along the circumference, the thrust shoes 1 press the steel balls 2, and the two side surfaces of the thrust shoes are fixed by the limit retaining posts 8; the retainer ring 3 is clamped in a retainer ring slot 13, a limit groove 14 is arranged at the inner side of an upper opening of the casing of the fixed seat 5, the outer arc surface flanges 11 of the thrust shoes 1 are arranged in the limit groove 14, and the retainer ring 3 is clamped on the inner arc surface flanges 11 of the thrust shoes. A cavity 17 is arranged between the fixed seat 5 and a bearing block 16. An elastic element is filled in the cavity 17.

Description

Thrust bearing

Technical field: a kind of thrust bearing, be used for well with the aligning balance of motor for submerged pump, belong to motor for submerged pump and make the field.

Background technique: at present well with motor for submerged pump thrust bearing mainly comprise with the disc shaft bearing of chucking lug and be arranged on this disc shaft bearing plane top bearing shell, the bearing shell form has the multipart bearing slide block to be linked to be an integral form, with by a plurality of independent multipart bearing slide block composition forms, a plurality of independent multipart bearing slide blocks are evenly arranged in the same circumference.Better by a plurality of independent multipart bearing slide block composition form aligning abilities, and not easy to wear, but this form structure is comparatively complicated, and processing request is high, has increased processing cost.On the assembling mode, originally there were many bolts of employing that fixed tray and fixed base are connected into an integral body, not only increased the processing cost of fixing bolt, increased again the processing cost of tapping on fixed base, simultaneously assembling is also two cumbersome.

Summary of the invention: the utility model is to design and a kind ofly is comprised of the fan-shaped thrust block pad of a plurality of independences (bearing slider), and structure is suitably simplified, the motor for submerged pump thrust bearing that processing request reduces.

A kind of thrust bearing, by thrust block pad 1, steel ball 2, back-up ring 3, fixed tray 4 and fixed base 5 consist of, it is characterized in that: the fixed base 5 newels outside suitable for reading has circlip groove 13, fixed base 5 shells inboard suitable for reading has limited impression 14, fixed tray 4 is ring members, be arranged at intervals with a plurality of limit stop posts 8 and steel ball hole 9 at annulus, has an another side that extends to fixed tray 4 in the limit stop post 8 at least, be locating column 10, fixed tray 4 is placed in the fixed base 5, and locating column 10 is inserted in the positioning hole 7 below the fixed base 5, makes the fixed tray location, steel ball 2 is placed in the steel ball hole 9, thrust block pad 1 along even circumferential be placed on fixed tray 4 above, the outer arced surface flange 11 of thrust block pad 1 is put in limited impression 14, centrally aligned steel ball 2, be pressed in steel ball 2 above, the limit stop post groove of bi-side 12 is aimed at limit stop posts 8; Back-up ring 3 is stuck in the circlip groove 13, be pressed in thrust block pad intrados flange 11 above, the sphere of activities of all thrust block pads is defined.

Thrust block pad 1 is sector structure, the center of thrust block pad 1 is on steel ball, between outer arced surface flange 11 and the groove 14, between intrados flange 11 and the back-up ring 3, between limit stop post groove 12 and the limit stop post 8 certain space is arranged, thrust block pad 1 can inside and outsidely swing, also can swing, but can not off normal and come off, and thrust block pad 1 can be selected between the 3-8 piece.

The fixed base 5 of thrust bearing is placed in the bearing support 16, and a cavity 17 is arranged between fixed base 5 and bearing support 16.Between motor thrust disc and thrust bearing thrust block pad, a fixed gap is arranged, for preventing the inclination of thrust bearing, be filled with elastic element in cavity 17, this elastic element can be one or more spring, also can be the elastic element that elastic caoutchouc packing ring or other elastic materials are made.After in cavity 17, being filled with elastic element, having eliminated the space between motor thrust disc and the thrust bearing thrust block pad, but still can play the aligning effect.

Adopt structure of the present utility model, steel ball, back-up ring adopt standard piece, fixed tray and fixed base can be by precision castings, amount of finish is very little, can cut down finished cost, easy to assembly, as long as the positioning hole 7 that the locating column 10 of fixed tray is aimed at fixed base puts in all right, again steel ball 2 is put into steel ball hole 9, the outer arced surface flange 11 of thrust block pad 1 is inserted the groove 14 of fixed base, make simultaneously limit stop post groove 12 aim at limit stop post 8 and put well, in circlip groove 13, buckle again back-up ring 3, whole assembling work has just been finished, and can save the assembling work amount.

Description of drawings: Fig. 1 is the structural representation of thrust bearing, Fig. 2 is the worm's eye view of thrust bearing fixed base, Fig. 3 is the partial enlarged drawing of Fig. 1, Fig. 4 is the fixed tray structural representation, Fig. 5 is that A-A is to sectional view, Fig. 6 is the thrust block pad side schematic view, Fig. 7 is thrust block pad distribution planimetric map, among the figure: 1---thrust block pad, 2---steel ball, 3---back-up ring, 4---fixed tray, 5---fixed base, 6---weep hole, 7---positioning hole, 8---limit stop post, 9---steel ball hole, 10---locating column, 11---flange, 12---the limit stop post groove, 13---circlip groove, 14---limited impression, 15---thrust disc, 16---bearing support, 17---cavity.

Embodiment: a kind of thrust bearing is made of thrust block pad, steel ball, axle-steel silk back-up ring, fixed tray and fixed base.Fixed tray 4 is placed in the fixed base 5, fixed tray 4 is ring members, be arranged at intervals with a plurality of limit stop posts 8 and steel ball hole 9 at annulus, has an another side that extends to fixed tray 4 in the limit stop post 8 at least, be locating column 10, locating column 10 is inserted in the positioning hole 7 below the fixed base 5, make the fixed tray location, steel ball 2 is placed in the steel ball hole 9, thrust block pad 1 is sector structure, interior, the bottom of outer arced surface is provided with flange 11, have limit stop post groove 12 in the bottom of bi-side, thrust block pad 1 along even circumferential be placed on fixed tray 4 above, the centrally aligned steel ball 2 of thrust block pad 1, be pressed in steel ball 2 above, the limit stop post groove of bi-side 12 is aimed at limit stop posts 8; The fixed base 5 newels outside suitable for reading has circlip groove 13, back-up ring 3 is stuck in the circlip groove 13, fixed base 5 shells inboard suitable for reading has limited impression 14, the outer arced surface flange 11 of thrust block pad 1 is put in limited impression 14, back-up ring 3 be stuck in thrust block pad intrados flange 11 above, all thrust block pads are all fixed.The fixed base 5 of thrust bearing is placed in the bearing support 16, and a cavity 17 is arranged between fixed base 5 and bearing support 16.In cavity 17, be filled with elastic element.

Steel ball, back-up ring adopt standard piece, and fixed tray and fixed base can be by precision castings, machined making again, and thrust block pad is by processing drawing making, and positive and negative two sides should polish.

Thrust block pad can be selected the 3-8 piece, selects 6 among the embodiment, and fan-shaped angle is 60 degree.

Claims

1. thrust bearing, by thrust block pad, steel ball, back-up ring, fixed tray and fixed base consist of, it is characterized in that: fixed base (5) the newel outside suitable for reading has circlip groove (13), fixed base (5) shell inboard suitable for reading has limited impression (14), fixed tray (4) is a ring member, be arranged at intervals with a plurality of limit stop posts (8) and steel ball hole (9) at annulus, has an another side that extends to fixed tray (4) in the limit stop post (8) at least, be locating column (10), fixed tray (4) is placed in the fixed base (5), locating column (10) is inserted in the following positioning hole (7) of fixed base (5), steel ball (2) is placed in the steel ball hole (9), thrust block pad (1) along even circumferential be placed on fixed tray (4) above, the outer arced surface flange (11) of thrust block pad (1) is put in limited impression (14), centrally aligned steel ball (2), be pressed in steel ball (2) above, the limit stop post groove (12) of bi-side is aimed at limit stop post (8); Back-up ring (3) is stuck in the circlip groove (13), be pressed in thrust block pad intrados flange (11) above.

2. by thrust bearing claimed in claim 1, it is characterized in that: the fixed base of thrust bearing (5) is placed in the bearing support 16, between fixed base (5) and bearing support (16), a cavity (17) is arranged, in cavity (17), be filled with elastic element.