CN204403155U - A kind of bracket bearing - Google Patents

Abstract

The utility model relates to a kind of bracket bearing, comprise outer ring, inner ring, outer ring raceway, inner ring raceway, ball, retainer, described ball is clamped between described outer ring and inner ring by described outer ring raceway, inner ring raceway, described retainer between described outer ring and inner ring and by described ball bib within it, described outer ring raceway and inner ring raceway have the ring oil groove with its concentric, described oil groove be located at depart from described outer ring raceway and inner ring raceway top position on.This bracket bearing has and reduces the surface friction drag of bearing and wearing and tearing, the working life of raising bearing, the smoothness of operation improving bearing, the advantage that prevents lubricant oil to run off.

Description

A kind of bracket bearing

Technical field

The utility model relates to a kind of bearing, particularly a kind of bracket bearing.

Background technique

Bearing is in mechanical transmission course, play parts that are fixing and reduction load friction factor.Alternatively, when other parts produce relative movement each other on axle, be used for reducing the fixing parts of friction factor in power transmission process and retainer shaft central position.Bearing is a kind of very important component in contemporary machinery.Its major function is supported mechanical solid of rotation, in order to reduce the mechanical load friction factor of equipment in transmission process.The bearing that different equipment uses has different requirement due to the different size to bearing such as its load, rotating speed, mounting point, environment, structure, but for how reducing the surface friction drag of bearing, reduce wear, the working life extending bearing is the problem that each class bearing all needs to solve, and is also the important directions of bearing industry development.

Summary of the invention

To be solved in the utility model is reduce bracket bearing surface friction drag, the technical problem of less bracket bearing wearing and tearing.The utility model provides a kind of bracket bearing, described support bracket bearing comprises outer ring, inner ring, outer ring raceway, inner ring raceway, ball, retainer, described ball is clamped between described outer ring and inner ring by described outer ring raceway, inner ring raceway, described retainer between described outer ring and inner ring and by described ball bib within it, described outer ring raceway and inner ring raceway have the ring oil groove with its concentric, described oil groove be located at depart from described outer ring raceway and inner ring raceway top position on.

The outer ring raceway, inner ring raceway of bracket bearing arrange ring oil groove, lubricant oil can be made to remain on for a long time in raceway, strengthen lubrication effect, the surface friction drag of ball and raceway is reduced greatly, decrease the area of contact of ball and raceway simultaneously, reduce further surface friction drag.Road environment is not in good situation; often having a lot of dust rests in the middle of bearing; particle harder in dust is easy to cause wearing and tearing to bearing; owing to having oil groove in raceway; dust granule can be transferred in oil groove along with the rotation of bearing, thus avoids causing wearing and tearing to ball and raceway, decreases surface friction drag; decrease wearing and tearing, extend the working life of bearing.

Further, described bracket bearing is provided with primary seal circle, and described outer ring and inner ring have corresponding main latch position, and described primary seal circle is made up of two platforms, and a platform card is enclosed between outer ring and inner ring, and another platform card is enclosed within main latch position.Primary seal circle is set and puts the loss that simultaneously can keep lubricant oil, make the lubrication effect that bearing keeps good, also can prevent dust from entering in bearing and causing wearing and tearing to bearing on the other hand.Two platform-like are arranged to by seal ring, and a platform card is enclosed between outer ring and inner ring, and another platform card is enclosed within main latch position, can strengthen sealing effect.

Further, two platform sides of described primary seal circle are respectively equipped with at least one ring oil duct.The sidepiece of primary seal circle two platforms contacts with outer ring raceway, inner ring raceway, main latch position respectively, even oil duct add lubricant oil in oil duct, and sealing effect can be better, and the resistance that when also can make in addition to rotate, seal ring is subject to reduces.

Further, described bracket bearing is also provided with auxiliary seal ring, and described outer ring, inner ring are provided with corresponding auxiliary draw-in groove.Arranging auxiliary seal ring can make sealing effect strengthen further.

Further, described outer ring is provided with two corresponding oil grooves, and described inner ring is provided with two corresponding oil grooves.

Outer ring raceway arranges two corresponding oil grooves, and inner ring raceway also arranges two corresponding oil grooves, and make the four direction of ball have oil groove, lubrication effect is better.

The utility model compared with the existing technology has the following advantages and effect:

1, prevent lubricant oil to run off, bearing is lubricated for a long time, improve the lubrication effect of bearing;

2, surface friction drag and the wearing and tearing of bearing are substantially reduced.

3, improve the smoothness of operation of bearing.

4, the working life of bearing is substantially increased.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the utility model bracket bearing schematic diagram.

Fig. 2 is that raceway support bearing A is to sectional drawing.

Fig. 3 is bracket bearing outer ring, inner ring schematic diagram.

Fig. 4 is primary seal circle schematic diagram.

Fig. 5 is that primary seal circle B is to schematic diagram.

Label declaration:

2-outer ring, 1-outer ring 3-ball 4-retainer 5-oil groove 6-primary seal circle

7-auxiliary seal ring 8-main latch position 9-auxiliary seal ring 10-oil duct 11-outer ring raceway

12-inner ring raceway

Embodiment

Be described in further detail the utility model below in conjunction with embodiment, following examples are that the utility model is not limited to following examples to explanation of the present utility model.

As depicted in figs. 1 and 2, a kind of bracket bearing of the utility model, described bracket bearing comprises outer ring 1, inner ring 2, outer ring raceway 11, inner ring raceway 12, ball 3, retainer 4, described outer ring raceway 11, described ball 3 is clamped between described outer ring 1 and inner ring 2 by inner ring raceway 12, described retainer 4 between described outer ring 1 and inner ring 2 and by described ball 3 bib within it, it is characterized in that, described outer ring raceway 11 and inner ring raceway 12 have the ring oil groove 5 with its concentric, described oil groove 5 is located on the position of departing from bottom described outer ring raceway 11 top and inner ring raceway 12.

In bearing operation process, it is maximum that bearing is subject to longitudinal pressure, the top of its outer ring raceway 11 and the bottom of inner ring raceway 12 are main force parts, if oil groove 5 is arranged on the top of outer ring raceway 11 and the bottom of inner ring raceway 12, stressed main portions is concentrated on the both sides of oil groove 5, easily wearing and tearing are formed to ball 3, therefore oil groove 5 is arranged on the position of departing from described outer ring raceway 11 or inner ring raceway 12 top.Set up four oil grooves 5 the outer ring raceway 11 of bearing and inner ring raceway 12 are corresponding between two, can ensure that ball 3 all directions are all well lubricated for a long time, and particle harder in koniology can be made to drop in oil groove 5 in bearing rotates, avoid the wearing and tearing of bearing and raceway.

As shown in Figure 3, outer ring raceway 11 and inner ring raceway 12 have corresponding main latch position 8, and primary seal circle 6 is stuck in main latch position 8, and bearing is well sealed.

In order to improve sealing further, auxiliary draw-in groove 9 can also be set, auxiliary seal ring 7 be stuck in auxiliary draw-in groove 9.

As shown in Figure 4 and Figure 5, primary seal circle 6 is made up of two platforms, a platform card is enclosed between outer ring 1 and inner ring 2, another platform card is enclosed within main latch position 8, the sidepiece of two platforms arranges oil duct 10, be full of lubricant oil in oil duct 10, better can play sealing effect, and the surface friction drag that when making bearing operation, seal ring is subject to reduces.

In addition, it should be noted that, the specific embodiment described in this specification, the shape, institute's title of being named etc. of its parts and components can be different.All equivalences of doing according to structure, feature and the principle described in the utility model inventional idea or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.

Claims (5)

1. a bracket bearing, described bracket bearing comprises outer ring (1), inner ring (2), outer ring raceway (11), inner ring raceway (12), ball (3), retainer (4), described outer ring raceway (11), described ball (3) is clamped between described outer ring (1) and inner ring (2) by inner ring raceway (12), described retainer to be positioned between described outer ring (1) and inner ring (2) and by described ball (3) bib within it, it is characterized in that, described outer ring raceway (11) and inner ring raceway (12) have the ring oil groove (5) with its concentric, described oil groove (5) be located at depart from described outer ring raceway (11) top and inner ring raceway (12) bottom position on.

2. bracket bearing according to claim 1, it is characterized in that, described bracket bearing is provided with primary seal circle (6), described outer ring (1) and inner ring (2) have corresponding main latch position (8), described primary seal circle (6) is made up of two platforms, a platform card is enclosed between outer ring (1) and inner ring (2), and another platform card is enclosed within main latch position (8).

3. bracket bearing according to claim 2, is characterized in that, two platform sides of described primary seal circle (6) are respectively equipped with at least one ring oil duct (10).

4. bracket bearing according to claim 3, is characterized in that, described bracket bearing is also provided with auxiliary seal ring (7), and described outer ring (1), inner ring (2) are provided with corresponding auxiliary draw-in groove (9).

5. bracket bearing according to claim 1, is characterized in that, described outer ring (1) is provided with two corresponding oil grooves (5), and described inner ring (2) is provided with two corresponding oil grooves (5).