CN202371004U

CN202371004U - Bearing

Info

Publication number: CN202371004U
Application number: CN 201120538618
Authority: CN
Inventors: 卢雨; 卢平古
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-21
Filing date: 2011-12-21
Publication date: 2012-08-08
Anticipated expiration: 2021-12-21

Abstract

The utility model relates to a bearing which is simple in structure, smaller in resistance and suitable for axial and radial loads. The bearing comprises an inner race, a pair of auxiliary inner races tightly sleeved on the inner race, rollers distributed on the auxiliary inner races, rolling members, annular bridge hoops sleeved on all rolling members, a pair of auxiliary outer races tightly sleeved on the bridge hoops, and an outer race tightly sleeved on the auxiliary outer races; each rolling member is arranged between each pair of adjacent rollers; the rollers are distributed axially, each roller is provided with an annular slot with an arc-shaped cross section, and the rolling members are located between the annular slots of adjacent rollers; the inner ring of each bridge hoop is provided with an arc-shaped slot movably matched with the corresponding rolling member; the pair of the auxiliary inner races is distributed on the outer periphery of the inner race in an axial symmetry manner, the outer side edge of each auxiliary inner race is provided with an edgefold extending outwards radially, and the outer end faces of the rollers are located at the inner side of the edgefolds; and the pair of auxiliary outer races is distributed on the inner periphery of the outer race in an axial symmetry manner, and the inner rings of the pair of auxiliary inner races constitute a large annular slot for fixing the bridge hoops.

Description

A kind of bearing

Technical field

The utility model relates to a kind of bearing, specifically be a kind of resistance less, be suitable for bearing at axial and radial load.

Background technique

Bearing is a kind of component that are used for confirming running shaft and other part relative movement positions, a supporting or leading role, is the parts that carry gravity, transferring power.

The deficiency of existing bearing is: on the resistance that quite a few of power produces in the time of can being lost in bearing operation; This resistance mainly comes from the friction between interior roller of bearing and the retainer; Bearing is big more, and the resistance that its retainer produces is just big more, and then the power of loss is just big more.In addition, the axial load ability of existing bearing is less, has limited its application.

The model utility content

The technical problem that the utility model will solve provide a kind of simple in structure, resistance is less, be suitable for the bearing at axial and radial load.

In order to solve the problems of the technologies described above; The utility model provides a kind of bearing, comprising: secondary inner ring, be distributed in roller on the secondary inner ring, be located at roller between the adjacent a pair of roller, be set in annular bridge hoop on each roller, tightly be enclosed within the secondary outer ring on this bridge hoop and tightly be placed in the outer ring on this pair outer ring; Said roller axial distribution, each roller are provided with the circular groove that the cross section is a circular arc, and said roller is between the circular groove of adjacent roller; The inner ring of said bridge hoop is provided with and is suitable for and the movable curve bath that cooperates of said roller; Said secondary inner ring comprises a pair of of axial symmetrical distribution, and the outer side edge of secondary inner ring has the flanging that extends radially outwardly, and the exterior edge face of roller is in the inboard of this flanging; Said secondary outer ring comprises and axially is symmetrically distributed in the said outer ring a pair of of week, this inner ring to secondary outer ring constitute one be used for fixing said bridge hoop big circular groove.

Particularly, the joint of the end face of the body of said secondary inner ring and the inner side surface of said flanging had oil groove, and this crosses oil groove integral body ringwise, was used to carry more lubricant oil, to reduce resistance.

Further, have first gap between the inner side end of described a pair of secondary inner ring, be used to carry lubricant oil, to reduce resistance.

Further, have second gap between the inner side end of described a pair of secondary outer ring and be used to carry lubricant oil, to reduce resistance.

During practical implementation; The internal diameter size of the quantity of said roller, the diameter of roller and bridge hoop is suitable for being fitted to each other; So that said roller activity is engaged between the circular groove of curve bath and adjacent roller of bridge hoop inner ring, and the diameter that makes roller is greater than the spacing of said adjacent a pair of circular groove; Cooperating of roller and the curve bath of bridge hoop inner ring, the circular groove on the roller, limited the moving position of roller, and reduced movable resistance.

As a kind of scheme of global optimization, in same radian position, respectively be provided with a roller on the described a pair of secondary inner ring, to symmetrical distribution, said circular groove is located at the inner end of contiguous each roller to roller axle for this; Said roller is between the circular groove with the adjacent roller of circle distribution; Said bridge hoop inner ring be suitable for and the movable curve bath that cooperates of said roller comprise with said circular groove be oppositely arranged a pair of.

As the scheme of further optimization, the end face of the body of said secondary inner ring is centroclinal inclined-plane,, radial load ability axial with further raising.

During practical implementation, said roller is truncated cone, and the tip portion of the roller of this truncated cone is said inner end; Said roller integral body is located on the body of single secondary inner ring.The roller of truncated cone is suitable for axial force is decomposed radially, therefore has better axial load ability, and roller can not produce displacement; The roller clearance that the bearing of this structure adopts is less, is suitable for adopting a fairly large number of roller, is beneficial to the radial load ability that increases.

Further, axially the tip portion of adjacent roller has the gap, and to rub between the tip portion that prevents adjacent roller, this gap is suitable for carrying lubricant oil simultaneously, to increase the lubricant oil space.

As the scheme of further optimization, the outer side edge of said secondary outer ring has second flanging that extends radially inwardly, and the exterior edge face of roller is in the inboard of this second flanging, preventing roller axle to displacement, and improves the radial load ability.

Be to improve the bulk strength of bearing, the inboard drive fit of said secondary inner ring has inner ring, and said secondary inner ring comprises and axially is symmetrically distributed in a pair of of said inner ring periphery.

The assembly method of above-mentioned bearing comprises successively:

Said bridge hoop is located in the said outer ring, then said a pair of secondary outer ring is symmetricly set between outer ring and the bridge hoop;

Said roller and roller are located at successively the inner ring of said bridge hoop;

Said a pair of secondary inner ring is symmetricly set on each roller inboard;

Said inner ring is a tight fit in the inner ring of described a pair of secondary inner ring.

The technique scheme of the utility model is compared existing technology and is had the following advantages: the bearing of (1) the utility model, removed the flower basket type retainer that traditional bearing adopts, the power loss of having avoided retainer to cause.Adopt the combination of bridge hoop, roller and roller to realize relatively rotating of Internal and external cycle, because the stress surface between bridge hoop, roller and the roller is an arc-shaped surface, so resistance is less; Cooperating of roller and the curve bath of bridge hoop inner ring, the circular groove on the roller, limited the moving position of roller, said secondary inner ring and secondary outer ring are played the axial limiting effect respectively, and roller can not produce displacement; Therefore, the bearing of the utility model has axial preferably and radial load ability.(2) roller that adopts in the twin columns bridge-type bearing of the utility model is truncated cone; The tip portion of truncated cone roller is oppositely arranged; The roller of truncated cone is suitable for axial force is decomposed radially, therefore has better axial load ability, and roller can not produce displacement; The roller clearance that the bearing of this structure adopts is less, is suitable for adopting a fairly large number of roller, is beneficial to the radial load ability that increases.(3) bearing of the utility model is applicable to any kind bearing, and for example automobile, wind-driven generator etc. with respect to traditional bearing, can reduce resistance more than 50%; On large size bearing, use, effect is remarkable, is beneficial to energy-conservation.(4) the bearing assembly method of the utility model, step is simple, assembling is easy, and product quality ensures easily.

Description of drawings

For the content that makes the utility model is more clearly understood, below basis specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation, wherein

Fig. 1 is the cross-sectional configuration schematic representation of first kind of bearing of the utility model;

Fig. 2 is the side structure schematic representation of the bearing among Fig. 1;

Fig. 3 is the structural representation of the another kind of twin columns bridge-type of the utility model bearing.

Embodiment

Embodiment 1: the single-column type bearing

See Fig. 1-2, the bearing of present embodiment comprises: inner ring 1, tightly be placed in secondary inner ring 2 on this inner ring 1, be distributed in roller 3 on the secondary inner ring 2, be located at roller 4 between the adjacent a pair of roller 3, be set in annular bridge hoop 7 on each roller 4, tightly be enclosed within the secondary outer ring 5 on this bridge hoop 7 and tightly be placed in the outer ring 6 on this pair outer ring 5; Said roller 3 axial distribution, each roller 3 are provided with the circular groove 3-1 that the cross section is a circular arc, and said roller 4 is between the circular groove 3-1 of adjacent roller 3; The inner ring of said bridge hoop 7 is provided with and is suitable for and the said roller 4 movable curve baths that cooperate; Said secondary inner ring 2 comprises and axially is symmetrically distributed in a pair of of said inner ring 1 periphery, and the outer side edge of secondary inner ring 2 has the flanging 2-1 that extends radially outwardly, and the exterior edge face of roller 3 is in the inboard of this flanging 2-1; Said secondary outer ring 5 comprises and axially is symmetrically distributed in a pair of of week in the said outer ring 6, this inner ring to secondary outer ring 5 constitute one be used for fixing said bridge hoop 7 big circular groove 5-1.

The joint of the end face of the body 2-2 of said secondary inner ring 2 and the inner side surface of said flanging 2-1 had oil groove 2-4, and this crosses oil groove 2-4 integral body ringwise, was used to carry more lubricant oil, to reduce resistance.

Have the first gap 2-3 between the inner side end of described a pair of secondary inner ring 2, be used to carry lubricant oil, to reduce resistance.

Have the second gap 5-2 between the inner side end of described a pair of secondary outer ring 5 and be used to carry lubricant oil, to reduce resistance.

The internal diameter size of the diameter of the quantity of said roller 3, roller 4 and bridge hoop 7 is suitable for being fitted to each other; So that said roller 4 activities are engaged between the circular groove 3-1 of curve bath and adjacent roller 3 of bridge hoop 7 inner rings, and the diameter that makes roller 4 is greater than the spacing of said adjacent a pair of circular groove 3-1; Cooperating of roller and the curve bath of bridge hoop inner ring, the circular groove on the roller, limited the moving position of roller, and reduced movable resistance.

The outer side edge of said secondary outer ring 5 has second flanging that extends radially inwardly, and the exterior edge face of roller 3 is in the inboard of this second flanging, preventing roller 3 axial displacements, and improves the radial load ability.The said roller 4 general balls that adopt also can adopt roller, the stability during with further increase bearing operation.

Embodiment 2: twin columns bridge-type bearing

On the basis of the foregoing description 1, the bearing of present embodiment has following modification:

Like Fig. 3, in same radian position, respectively be provided with a roller 3 on the described a pair of secondary inner ring 2, this axially is symmetrically distributed to roller 3, and said circular groove 3-1 is located at the inner end of contiguous each roller 3; Said roller 4 is between the circular groove 3-1 with the adjacent roller 3 of circle distribution; Said bridge hoop 7 inner rings be suitable for and the said roller 4 movable curve baths that cooperate comprise with said circular groove 3-1 be oppositely arranged a pair of.

Said roller 3 is truncated cone, and the tip portion of the roller 3 of this truncated cone is said inner end; Said roller 3 integral body are located on the body 2-2 of single secondary inner ring 2.The roller of truncated cone is suitable for axial force is decomposed radially, therefore has better axial load ability, and roller can not produce displacement; The roller clearance that the bearing of this structure adopts is less, is suitable for adopting a fairly large number of roller, is beneficial to the radial load ability that increases.

Axially the tip portion of adjacent roller 3 has the gap, and to rub between the tip portion that prevents adjacent roller 3, this gap is suitable for carrying lubricant oil simultaneously, to increase the lubricant oil space.

Said roller 4 adopts ball, and the end face of the body 2-2 of said secondary inner ring 2 is centroclinal inclined-plane,, radial load ability axial with further raising.

Said inner ring 1 can adopt plastic production, can remove when mounted.

Embodiment 3

The assembly method of the

foregoing description

1 or 2 described bearings comprises successively:

Said bridge hoop 7 is located in the said outer ring 6, then said a pair of secondary outer ring 5 is symmetricly set between outer ring 6 and the bridge hoop 7;

Said roller 4 and roller 3 are located at successively the inner ring of said bridge hoop 7;

Said a pair of secondary inner ring 2 is symmetricly set on each roller 3 inboard;

Said inner ring 1 is a tight fit in the inner ring of described a pair of secondary inner ring 2.

Obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not to be qualification to the mode of execution of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation that these spirit that belong to the utility model are extended out or change still are among the protection domain of the utility model.

Claims

1. bearing is characterized in that comprising: secondary inner ring (2), be distributed in roller (3) on the secondary inner ring (2), be located at roller (4) between the adjacent a pair of roller (3), be set in annular bridge hoop (7) on each roller (4), tightly be enclosed within the secondary outer ring (5) on this bridge hoop (7) and tightly be placed in the outer ring (6) on this pair outer ring (5);

Said roller (3) axial distribution, each roller (3) are provided with the circular groove that the cross section is a circular arc (3-1), and said roller (4) is between the circular groove (3-1) of adjacent roller (3);

The inner ring of said bridge hoop (7) is provided with and is suitable for and the movable curve bath that cooperates of said roller (4);

Said secondary inner ring (2) comprises a pair of of axial symmetrical distribution, and the outer side edge of secondary inner ring (2) has the flanging (2-1) that extends radially outwardly, and the exterior edge face of roller (3) is in the inboard of this flanging (2-1);

Said secondary outer ring (5) comprises and axially is symmetrically distributed in a pair of of week in the said outer ring (6), this inner ring to secondary outer ring (5) constitute one be used for fixing said bridge hoop (7) big circular groove (5-1).

2. bearing according to claim 1 is characterized in that: the joint of the end face of the body (2-2) of said secondary inner ring (2) and the inner side surface of said flanging (2-1) had oil groove (2-4), and this crosses oil groove (2-4) integral body ringwise.

3. bearing according to claim 1 and 2 is characterized in that: have first gap (2-3) between the inner side end of described a pair of secondary inner ring (2); Has second gap (5-2) between the inner side end of described a pair of secondary outer ring (5).

4. bearing according to claim 1 and 2; It is characterized in that: the diameter of the quantity of said roller (3), roller (4) and the internal diameter size of bridge hoop (7) are suitable for being fitted to each other; So that said roller (4) activity is engaged between the circular groove (3-1) of curve bath and adjacent roller (3) of bridge hoop (7) inner ring, and the diameter that makes roller (4) is greater than the spacing of said adjacent a pair of circular groove (3-1).

5. bearing according to claim 1 is characterized in that: in same radian position, respectively be provided with a roller (3) on the described a pair of secondary inner ring (2), this axially is symmetrically distributed to roller (3), and said circular groove (3-1) is located at the inner end of contiguous each roller (3);

Said roller (4) is between the circular groove (3-1) with the adjacent roller (3) of circle distribution;

Said bridge hoop (7) inner ring be suitable for and the movable curve bath that cooperates of said roller (4) comprise with said circular groove (3-1) be oppositely arranged a pair of.

6. bearing according to claim 5 is characterized in that: the end face of the body (2-2) of said secondary inner ring (2) is centroclinal inclined-plane.

7. according to claim 5 or 6 described bearings, it is characterized in that: said roller (3) is truncated cone, and the tip portion of the roller of this truncated cone (3) is said inner end; Said roller (3) integral body is located on the body (2-2) of single secondary inner ring (2).

8. according to claim 1 or 5 described bearings, it is characterized in that: axially the tip portion of adjacent roller (3) has the gap;

The outer side edge of said secondary outer ring (5) has second flanging that extends radially inwardly, and the exterior edge face of roller (3) is in the inboard of this second flanging.

9. bearing according to claim 1 is characterized in that: the inboard drive fit of said secondary inner ring (2) has inner ring (1), and said secondary inner ring (2) comprises and axially is symmetrically distributed in a pair of of said inner ring (1) periphery.