CN2392027Y

CN2392027Y - High-temperature deep groove ball bearing

Info

Publication number: CN2392027Y
Application number: CN 99252851
Authority: CN
Inventors: 唐永健
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-05
Filing date: 1999-11-05
Publication date: 2000-08-16
Anticipated expiration: 2009-11-05

Abstract

High temperature deep groove ball bearing, including outer lane (1), steel ball (2), inner circle (3) and steel wire retaining ring (4), the inner circle is being suit in the outer lane, respectively opens the rolling circular arc slot that has the round mutual correspondence along the middle part of the interior round wall of outer lane and the excircle wall of inner circle, is filling the round steel ball between two slots to open on one side wall of inner and outer lane and have a dress ball mouth, the circle wall of the inner circle of dress ball mouth that one side or outer lane is opened there is the draw-in groove, the inlay card has the steel wire retaining ring in the draw-in groove. The ball bearing can normally run under high-temperature conditions and under the conditions of dust, dirty gas and dirty liquid invasion, and is difficult to clamp and block.

Description

The patent High-temperature Deep-furrow Ball Bearing

The utility model relates to ball bearing, and is concrete relevant with the ball bearing of high-temperature operation.

Heating or spontaneous high thermal field close outside many, the ball of plain bearing often can be stuck under thermal expansion in Internal and external cycle and can not use or the life-span extremely short, the normal operation that influences Work machine causes unnecessary economic damage to the user.

The purpose of this utility model is to provide a kind of High-temperature Deep-furrow Ball Bearing to the public, and it can normal operation work under high temperature condition and big dust, dirty gas, soiling solution invasion and attack condition, and the transposing steel ball is easy, convenient for maintaining.

The utility model comprises outer ring, steel ball, inner ring and Steel Cable Baffle Ring, suit inner ring in its outer ring, inner round wall face along the outer ring respectively has a circle corresponding rolling arc groove mutually with the intermediate portion of the cylindrical wall of inner ring, loading a circle steel ball between two grooves, its steel ball size should be greater than the difference of the cylindrical wall section radius of the inner round wall section radius of outer ring (1) and inner ring (3), and should be less than the difference of rolling arc groove bottom land section radius on outer ring (1) and the rolling arc groove bottom land section radius on the inner ring (3); On a side wall surface of Internal and external cycle, have simultaneously a ball-loading hole that is communicated with the rolling arc groove, and on the cylindrical wall of inner ring or have that side of ball-loading hole to have a circle draw-in groove on the inner round wall face of outer ring, inlay card there is a degree of tightness steel wire ring washer in the draw-in groove.In order to guarantee that steel ball still can very roll in the rolling arc groove at Internal and external cycle under the expanded by heating situation neatly, the rolling circular arc groove depth on its outer ring inner round wall face and the inner ring cylindrical wall is 1/8～1/2 of a steel ball size.

The utlity model has following advantage:, avoided the generation of retainer because of the stuck steel ball phenomenon of temperature distortion owing to the retainer that has removed in traditional ball bearing; Simultaneously, owing to have darker rolling arc groove, formed bigger radial internal clearance, so under the higher temperature situation and under than big dust, dirty gas, soiling solution invasion and attack condition, can guarantee the rolling flexibility of steel ball, thereby guarantee bearing operation normal under above-mentioned adverse condition.

The utility model is described in further detail below in conjunction with accompanying drawing and embodiment:

Of the present utility model the cuing open of Fig. 1 shown structural representation

Fig. 2 outer ring of the present utility model schematic representation

Fig. 3 inner ring schematic representation of the present utility model

Fig. 4 side-looking partial structurtes of the present utility model schematic representation

As shown in Figure 1 and Figure 4, the utility model comprises outer ring 1. steel balls, 2. inner rings 3 and Steel Cable Baffle Ring 4.Inner ring 3 is sleeved in the outer ring 1.The shape and structure of outer ring 1 and inner ring 3 respectively has a circle corresponding rolling arc groove mutually respectively as shown in Figures 2 and 3 in the inner round wall face and the intermediate portion of the cylindrical wall of inner ring of outer ring, loading a circle steel ball 2 between two grooves; Its steel ball size D should be greater than the inner round wall section radius R of outer ring 1 ₁Cylindrical wall section radius R with inner ring 3 ₂Difference R ₁-R ₂, and should be less than the rolling arc groove bottom land section radius r on the outer ring 1 ₁With the rolling arc groove bottom land section radius r on the inner ring 3 ₂Difference r ₁-r ₂Simultaneously, have a ball-loading hole that is communicated with the rolling arc groove on inside and outside circle 3 and a side wall surface of 1, and have the outer slightly position of that side of ball-loading hole to have a circle draw-in groove at the cylindrical wall of inner ring 3, inlay card has a degree of tightness Steel Cable Baffle Ring 4 in the draw-in groove.In order to guarantee at high temperature going slick of steel ball in the bearing and do not tighten, the degree of depth of the rolling arc groove on its outer ring 1 inner round wall face and the inner ring 3 cylindrical walls is 1/8～1/2 of steel ball 2 diameters.For the ease of loading and unloading degree of tightness Steel Cable Baffle Ring 4, this back-up ring is one to have the butt joint circular steel wire ring of interface, opens its interface during loading and unloading a little and can throw off or embed draw-in groove on the inner ring 3 cylindrical walls.

Claims

1, High-temperature Deep-furrow Ball Bearing, comprise outer ring (1), steel ball (2), inner ring (3) and Steel Cable Baffle Ring (4), it is characterized in that: suit inner ring (3) in outer ring (1), the inner round wall face of (1) respectively has a circle corresponding rolling arc groove mutually with the intermediate portion of the cylindrical wall of inner ring (3) along the outer ring, loading a circle steel ball (2) between two grooves, its steel ball size (D) should be greater than the interior circular section radius (R of outer ring (1) ₁) with the cylindrical wall section radius (R of inner ring (3) ₂) difference (R ₁-R ₂), and should be less than the rolling arc groove bottom land section radius (r on outer ring (1) ₁) with inner ring (2) on rolling arc groove bottom land section radius (r ₂) difference (r ₁-r ₂); On a side wall surface of inside and outside circle, have simultaneously the ball-loading hole of a connection rolling arc groove, and on the cylindrical wall of inner ring (3) or have that side of ball-loading hole to have a circle draw-in groove on the inner round wall face of outer ring (1), inlay card has a degree of tightness Steel Cable Baffle Ring (4) in the draw-in groove.

2, High-temperature Deep-furrow Ball Bearing according to claim 1 is characterized in that: the degree of depth of the rolling arc groove on its outer ring (1) inner round wall face and inner ring (2) the cylindrical wall is generally got 1/8～1/2 of steel ball (2) diameter (D).

3, High-temperature Deep-furrow Ball Bearing according to claim 1 is characterized in that: its degree of tightness Steel Cable Baffle Ring (4) is the butt joint circular steel wire ring of a band interface.